CN105658866A - Heat pump laundry dryer - Google Patents

Abstract

The invention relates to a laundry dryer (1) comprising: a casing (2) supporting a drying chamber (3) for receiving a load to be dried; a process air conduit (11) in communication with the drying chamber (3) where a process air stream is apt to flow, a heat pump (30) having a heat pump circuit in which a refrigerant (R) can flow, said heat pump circuit including a first heat exchanger (31) where the refrigerant is cooled off and the process air stream is heated up, and a second heat exchanger (32) where the refrigerant is heated up and the process air is cooled off; said first and/or second heat exchanger being thermally coupled to the process air conduit (11) to perform heat exchange between said refrigerant flowing in said heat pump circuit and said process air stream; said first and/or second heat exchanger (31;32) further comprising a first (10) and a second heat exchanger module (10'), each module (10; 10') including an inlet header (5; 5') to direct a flow of said refrigerant (R) into said module (10, 10'); an outlet header (6; 6') to discharge said refrigerant (R) from said module (10, 10'); and a plurality of heat exchange layers (8; 8') fluidly connecting said inlet (5; 5') to said outlet header (6; 6') to enable said refrigerant (R) to flow from said inlet to said outlet header and/or vice versa; said layers (8; 8') being stacked one above the others in a predetermined stacking direction (Z; Z') and each layer (8; 8') including a plurality of channels (7); wherein said first and said second heat exchanger modules (10,10') are mounted adjacent one to the other and a first heat exchange layer (8) of the first module (10) and a second heat exchange layer (8') of the second module (10) are separated by a gap (g) in a direction incident to said stacking direction (Z, Z'), said first and said second heat exchanger modules (10, 10') including a plurality of fins (50) arranged on both said first and said second heat exchange layers (8, 8') and extending through said gap (g).

Description

Heat pump laundry dryer

Invention field

The present invention relates to a kind of clothesdrier including heat pump, more particularly to the clothesdrier of a kind of persistent period optimizing energy expenditure and/or arid cycle.

Background technology

Most of drying machines include the rotation cylinder being referred to as cylinder, are therefore referred to as cylindrical drier, and the air of heating circulates through rotation cylinder to make moisture evaporate from load. Cylinder encloses and rotates about the axis thereof.

Known clothesdrier includes two kinds: condensing clothes drying machine and ventilation-type laundry drying machine. The drying machine of first category makes the air discharged from cylinder circulate through heat exchanger/condenser to cool down air condensed moisture;After adding hot-air already with heater, drying machine makes air return recirculation traverse cylinder subsequently. In operation, the drying machine of second category extracts air from peripheral region, adds hot-air, blow air to cylinder, will then pass through air vent and air is discharged to outside.

Generally, owing to the drying machine of first category is not required for suitably installing special device, the exhaust manifolds such as discharged by the damp-heat air from cylinder, so they are modal in the market. But, generally for equal-wattage and identical load amount, the arid cycle of condensation dryer is longer than the cycle such as grade in ventilating drier.

According to prior art it have been proposed that some solutions, in order to improve the efficiency of condensation dryer and ventilating drier. Specifically, heat pump techniques has been applied to clothesdrier, in order to strengthen the efficiency of drying clothes. In conventional heat pump drying machine, air flows in the closed. The air moved by fan, through cylinder, removes water from wet clothes, and then air is cooled and dehumidified and be heated to be re-inserted among cylinder in heat pump condenser in evaporator with heat pump. In order to run, heat pump comprises air and carries out with it the cold-producing medium of heat exchange, and cold-producing medium is by compressor compresses, condenses in the condenser in being laminated to expansion gear, then evaporates in vaporizer.

EP1209277 discloses a kind of heat pump clothes drier device, on the first fan wherein making dry air circulate for driving the motor of the cylinder accommodating clothes to be dried to be also connected to and the second fan of cooled compressed machine.

US2011/0280736 relates to a kind of method controlling drying machine. A kind of control includes the method with the drying machine of the heat pump of speed changing type compressor, and this control method comprises the following steps: select at least one route of supply air or dry air; When implementing selected route, the toggle speed of compressor is increased to target velocity; And adjust the aperture of the expansion valve being arranged in heat pump.

Summary of the invention

The present invention relates to a kind of clothesdrier for drying clothes and other clothing, this clothesdrier includes the heat pump with the first heat exchanger and the second heat exchanger. The clothesdrier of the present invention can include ventilating drier or condensation dryer. The configuration of the heat exchanger in the clothesdrier of the present invention be such that the particular geometric configuration according to clothesdrier realize, the best heat transfer ability of substantially custom-made. Preferably, the layout of the internal part according to clothesdrier, be especially preferred air loop and the layout of optional fan, have this special air loop configuration clothesdrier for maximizing cold-producing medium and to process the geometry optimization of the heat exchanger of heat exchange between air be obtainable according to the present invention.

Heat pump drier includes hothouse (such as cylinder), has load (such as clothes) to be dried to be placed in the drying chamber. This hothouse is the part processing air loop, this process air loop is in particular closed loop or when ventilating drier for opening a way when condensation dryer, and this process air loop includes for guiding air-flow in both cases to dry the air conduit of load. This process air loop is connected on this hothouse by its two opposite ends.Preferably, the dehumidified air of heat is fed in hothouse, thus flowing on medicated clothing, and produced moist cooling air leaves this hothouse. In steam rich in moist airflow be then fed in the vaporizer of heat pump, in vaporizer, moistening warm process the dampness condensation that air is cooled and wherein existing. The environment that dehumidified air is then expelled to dryer outer, this drying machine is arranged in of produced cooling, or this air continues in closed loop. In this second case, the dehumidified air in treatment loop then before being again introduced in hothouse condenser by means of heat pump heat, and whole circulate in terminate arid cycle before repeat always. Alternately, surrounding air enters from environment via entry conductor the condenser of heat pump, and surrounding air is heated by the condenser of heat pump entering before hothouse.

The heat pump of this equipment includes refrigerant loop, and cold-producing medium can flow in this refrigerant loop and this refrigerant loop connects the first heat exchanger or condenser, the second heat exchanger or vaporizer, compressor and dropping equipment via pipeline. Cold-producing medium is pressurizeed by compressor and circulates through system. In the waste side of compressor, the steam of heat and highly pressurization is cooled in the first heat exchanger be referred to as condenser, until it is condensed into the liquid of high pressure, moderate temperature, thus it being heated processing before air is introduced in hothouse. The cold-producing medium of condensation then passes through dropping equipment, such as expansion gear, for instance choker, valve or capillary tube. Low-pressure, liquid refrigerant is subsequently in the second heat exchanger (vaporizer), and in this second heat exchanger, fluid absorbs heat owing to carrying out heat exchange with the process air leaving hothouse and evaporates. Cold-producing medium then returnes to compressor and this cycle repeats.

In certain embodiments, in the first heat exchanger and/or the second heat exchanger, cold-producing medium is likely to without undergoing phase transformation.

Hereinafter, indicate reference fluid in the position of the flow direction of pipe interior with term " downstream " and/or " upstream ". Additionally, in this linguistic context, term " vertically " and " level " refer to that element is relative to the position of drying machine in the normal mounting or operation of drying machine. It practice, define the horizontal plane (X ", Y ") become by the direction X of two horizontal vertical, Y shape in 3-D space, and also define the vertical direction Z being perpendicular to horizontal plane ".

Applicant already allows for a kind of heat pump drier, and wherein the first heat exchanger of heat pump and/or the second heat exchanger include one or more heat exchanger modules implemented as described below. Each module includes two header boxs, it is allowed to cold-producing medium flows into the entrance header box in module and the outlet header box allowing cold-producing medium to discharge from module. Except addition entry point header box and/or outlet header box, may also include additional header box. Further, module include stacking in the stacking direction multiple heat exchange layers (such as, these layers along assigned direction self be arranged). Although often mentioning term " self ground is stacking in the stacking direction ", but this not implying that these heat exchange layers are placed along self ground of vertical direction. This simply means that, along assigned direction (stacking direction), these layers are that self is placed in order, although stacking direction is also likely to be horizontal direction.

Each heat exchange layers includes the more than one passage for cold-producing medium stream, and these passages are positioned at this layer adjacent to each other. These passages are in fluid communication with entrance header box and/or outlet header box, so allow cold-producing medium to flow to outlet header box from entrance header box and/or vice versa. Preferably, the plurality of passage in each heat exchanger layer with parallel to each other. Each heat exchange layers limits two contrary ends: these ends are fixed on entrance header box and/or outlet header box, or are fixed on extra play (such as, the layer of above and or below).

In each heat exchange layers, these passages can also be angled, or they can have irregular shape.

Preferably, stacking direction is vertical direction, and these heat exchange layers self is stacking vertically.

These heat exchange layers have the given width of the number of channels depending on realizing layer and the longitudinal extension corresponding with the longitudinal extension of the passage in the layer forming passage. Width and longitudinal extension direction preferably limit plane. This plane is likely to be perpendicular to the stacking direction of layer, or it can with this stacking direction angulation. Alternately, heat exchange layers can relative to each other tilt or can self landform archwise.

The passage of adjacent (that is, being close in the stacking direction) layer in the stacking direction is connected by fin.

Entrance header box and outlet header box can the given distances of mutual distance, so that one end of each heat exchange layers is connected with entrance header box, end opposite is connected with outlet header box, such as, these heat exchange layers are inserted between entrance header box and outlet header box. Alternately, entrance header box can be positioned so that with outlet header box one contacts with another or be close to (such as, on one top being positioned at another), so that these heat exchange layers by its one end and entrance header box or outlet header box attachment and by its end opposite and the attachment of additional middle header box, can be oriented to and entrance header box and export header box distance to set a distance. Equally in this case, header box is connected, the other end is connected with additional header box for one end of each heat exchange layers and entrance header box or outlet, thus each layer is still inserted between two header boxs all the time. In the first scenario, in order to arrive outlet header box from entrance header box, the cold-producing medium single heat exchange layers of traverse, and in the latter case, cold-producing medium must flow through at least two heat exchange layers from entrance header box, and cold-producing medium stream has a direction in this two-layer one layer, and has essentially the inverse direction in another layer, in order to arrive outlet header box.

In the different additional embodiment of heat exchanger module, entrance header box and outlet header box are each connected with a monolayer in the plurality of layer. Such as, entrance header box can be connected along the free end of stacking direction with the highest (or minimum) layer in the plurality of layer, and outlet header box can be connected with the free end of minimum (or the highest) layer. Other layers each in the plurality of layer (top and except lowermost layer) are then connected by its corresponding adjacent layer in its end (above or lower section), this results in the one end by a layer and are adjacent the bending that the end of layer connects. In this way, single group passage defines all layers, and this group passage repeatedly folds, thus forming zigzag pattern.

In all embodiments, the plurality of passage, at least in part through being subject to processing air stream, so makes there is heat exchange between the cold-producing medium of flowing in passage and process air.Therefore, at least partly this purpose, for their whole extension preferably, the passage of the heat exchange layers of the module of the first heat exchanger and/or the second heat exchanger is preferably located in air conduit, and this air hose is the part processing air loop.

Header box has the function keeping different layers and/or as the import entering in module for cold-producing medium and/or outlet.

Applicant have appreciated that, in the air loop of known clothesdrier, the process air of flowing is not spatially uniform, and in other words, it does not have unified space flow speed in air conduit. Taking air conduit cross section on its any position, the air flowing through this cross section has speed different generally in the difference in this cross section, and additionally, flow velocity is different in the zones of different in this cross section.

Additionally, the flow direction of air is not always parallel to the wall of air line equally. The streamline processing air stream can follow the complex pattern in air line, including whirlpool and turbulent flow.

This inhomogeneities is owing to the structure of air line itself causes: the process air within clothesdrier generally flows not along straight catheter, on the contrary, pipeline and such as the element of the end of a thread filter in existence process air stream must travel through and some bend pipes of being likely to result in turbulent flow and flow deviation and sweep.

For example, in some drying machines, process air and leave hothouse by the hole realized in the border at the door of shell, and process air and be bent downwardly thus passing the filter for collecting the end of a thread. Further, process air and again bend to flow in the base portion of shell, this base portion is usually present the space of the heat exchanger being available for location heat pump.

In other drying machines, process air and leave this room by the hole realized in hothouse itself, in the uppermost region of hothouse, and return in this room via the hole realized in the lowermost region of this room, process air thus in the top area of the shell of clothesdrier flow, heat exchanger be positioned in top area in case with process air exchange heat.

Additionally, generally, fan is present in air line to blow process air, circulates thus forcing to process air along air loop itself. Similarly, the constraint that the existence of the some elements within the volume limited by shell and this volume is forced, fan also not always medially positions relative to air line, but it be probably bias, this imply it by blow air to distance pipeline sidewall in one (or multiple) than another (other) closer to. Therefore, this bias of fan is also causing unsymmetry on the flow velocity processing air of air line.

Owing to heat exchange mainly occurs in the passage forming heat exchange layers, and occur in the fin connecting stacking heat exchange layers, so applicant have appreciated that, the spatial non-uniformity processing air and turbulent flow thereof flowing through module also affects the heat exchanger effectiveness of module.

Another of heat exchanger common problem encountered is that, heat exchanger be designed to generally to maximize must surface area between two kinds of fluids (be cold-producing medium in this case and process air) of heat-shift, minimize the resistance to the fluid stream through exchanger simultaneously. Therefore, it is however generally that, these heat exchanger modules are designed to have the widest possible heat exchange surface.But, in the utensils such as such as drying machine, for the limited space of any parts, and therefore must realize the maximization of heat exchange surface with cumulative volume little as far as possible. The gross area of heat exchange surface is subject to the restriction of the volume available of this or these module.

Applicant have appreciated that, it is possible to optimize the geometry of module, without the population structure changing module, which imply that the cost building module and manufacture complexity keep being basically unchanged. In other words, applicant have appreciated that, it is possible to increase the usable surface of heat exchange in module, keep module totally to take volume identical, and optimum geometry realizes the better control to the air-flow through heat exchanger module simultaneously.

In order to make heat exchange surface maximize, applicant has optimized the geometry of fin, in order to obtain the maximum extension wherein processing the heat exchange surface that air flows at most. Applicant have discovered that, first and second adjacent heat exchanger modules are connected with shared fin, that is, the first module layer and the second module layer share identical multiple fins, both add the usable surface of heat exchange and decrease the turbulent flow of the air-flow through module simultaneously. The latter's effect is that these fins are relatively long (bridging two modules) in the direction of the air flow owing to " tunnel-effect " that process air through fin itself causes.

In this context, fin is to include extending to will pass through increase convection current to increase the element on the surface of heat transfer rate from object (in this case, being heat exchange layers).

Fin is added to object (being the surface of heat exchange layers in this case) adds the surface area for heat exchange. The fin of any type and geometry can be applied to the present invention. Preferably, fin is inserted between the heat exchange layers of two contiguous vertical stackings of module. Fin may reside between every pair of adjacent heat switching layer, or exists only between some of which.

Fin includes the wall defining heat exchange surface.

According to first aspect, the present invention relates to a kind of clothesdrier, this clothesdrier includes:

A. shell, this shell supports the hothouse for receiving load to be dried;

B. processing air line, this process air line connects with this hothouse, in this process air line, processes air stream readily flowed;

C. heat pump, this heat pump has the heat pump circuit that cold-producing medium can flow wherein, and described heat pump circuit includes: the first heat exchanger, and in this first heat exchanger, this cold-producing medium is cooled and this process air stream is heated; And second heat exchanger, in this second heat exchanger, this cold-producing medium is heated and this process air is cooled; Described first heat exchanger and/or described second heat exchanger are thermally coupled on this process air line, in order to perform the heat exchange between described cold-producing medium and the described process air stream of flowing in described heat pump circuit; Described first heat exchanger and/or described second heat exchanger farther include the first heat exchanger module and the second heat exchanger module, and each module includes

�� entrance header box, described cold-producing medium stream is directed in described heat exchanger module by this entrance header box;

�� exports header box, and this outlet header box discharges described cold-producing medium from described heat exchanger module; And

Many heat exchange layers of ��, described entrance is fluidly connected to described outlet header box by the plurality of heat exchange layers, in order to enable described cold-producing medium to flow to described outlet header box from described entrance header box and/or vice versa;Described layer self ground on predetermined stacking direction is stacking, and each layer includes multiple passage;

It is characterized in that, described first heat exchanger module and described second heat exchanger module are mounted adjacent one another, and the first heat exchange layers of the first module is separated by gaps on the direction consistent with described stacking direction with the second heat exchange layers of this second module, described first heat exchanger module and described second heat exchanger module include multiple fin, and these fins are arranged in described first heat exchange layers and described second heat exchange layers and extend through described gap.

According to the present invention, belong to same heat exchanger (such as, both belong to the first heat exchanger or both belong to the second heat exchanger) or belong to different heat exchanger (such as, first module may belong to the first heat exchanger, and the second module belongs to the second heat exchanger) the first heat exchange module and the second heat exchange module be located adjacent to. Gap is there is between the ground floor and the second layer of the second module of the first module.

Typically, since the layer of a module can not contact with the layer of adjacent block, so there is gap. This is owing to the size of such as header box is generally wider than the width of these layers, or owing to other restrictions cause. Therefore, although these layers of the first module and those layer of adjacent positioned (even minimum) of the second module, between two groups of layers, there is spacing or gap.

Define the size in gap with the following methods. Ground floor and the second layer include the first boundary edge and the second boundary edge of face each other respectively. Distance between first edge and the second edge is size or the length in gap. Gap size needs not to be uniform: the first heat exchanger module and the second heat exchanger module can be parallel, such as, there is layer parallel to each other, so that the gap between ground floor and the second layer is substantial constant along the ground floor of face each other and the external margin of the second layer, or relative to each other angled, so that the distance between the first edge and the second edge continues to change along the extension at edge.

In other words, the size in gap is the spacing that two heat exchange modules separate along a direction. This gap defines a direction and is meant to, and this gap extends along not parallel with stacking direction line, and namely it defines the line connecting ground floor and the second layer, otherwise it is consistent with stacking direction. This so it is meant that the first heat exchanger module and the second heat exchanger module be not along self location, ground of stacking direction.

According to the present invention, the first heat exchanger module and the second heat exchanger module are connected by multiple fins, and these fins are arranged on the first heat exchanger layer of the first module and on the second heat exchanger layer of the second module. Multiple fins also extend through the gap between ground floor and the second layer, define from the first module to the bridge joint of the second module.

Such as, in an embodiment, a fin in the plurality of fin includes wall, and this wall is positioned at that the top of upper surface of ground floor is upper and on the top of the upper surface of the second layer, and it also extends through this gap as discrete component.

Adopt this geometric configuration, overall volume that the heat exchanger of the present invention occupies and there are two modules (each module has fin between each layer of module self, do not extend to adjacent block) heat exchanger identical, but there is wider heat exchange surface simultaneously.Surface after increase includes the finless parts extending through the gap between module. Meanwhile, the wall of fin defines in " tunnel ", and guiding processes air through module, and turbulent flow is minimized. It practice, the length " tunnel " (these tunnels are not interrupted by the end of module) with fin formation makes the air distribution in the air line at module place more uniform.

The existence of the shared fin in two modules additionally improves the mechanical resistance (this is that two modules self being fixed to one another by fin can be run into) of individual unit. Individual unit (rather than two unit) simplifies the installation of this unit in the air line of drying machine, because must be positioned and align.

It should be understood that more than two module can be attached by identical multiple fins. Such as, if the first heat exchanger module, the second heat exchanger module and the 3rd heat exchanger module are all mounted adjacent one another, independent multiple fins can be located on a layer of each module and can extend across two gaps in this case, one gap is present between the first module and the second module, and second gap is present between the second module and three module.

This structure is applicable to the adjacent block of any quantity N.

In in above-mentioned, alternatively or in combination, it is possible to there is characteristic additionally below.

According to preferred embodiment, described first module includes the 3rd heat exchange layers, 3rd heat exchange layers defines first pair of adjacent heat exchange layers together with described first heat exchange layers on described stacking direction, and described second module includes the 4th heat exchange layers, 4th heat exchange layers defines second pair of heat exchange layers at described stacking direction together with described second heat exchange layers, and the plurality of fin is arranged between described first pair and ground floor and the third layer of the second centering and between the second layer and the 4th layer respectively.

Therefore, each module at least includes adjacent a pair heat exchanger layer along stacking direction. The plurality of fin is inserted between layer between layer in this kind of adjacent layer of the first couple of the first module and in this kind of adjacent layer of the second couple of the second module. In the present invention, it not that there is multiple fin between these layers of the first centering, but there are separated multiple fins between the layer of the second centering, the second module is arrived from the first module " extension " including independent multiple fins and these fins, in other words, first pair of adjacent layer in the first module and second pair of adjacent layer in the second module are connected by identical multiple fins.

In an advantageous embodiment, the second and the 4th of distance between first and third phase neighbour's heat exchange layers of the first centering and described second centering distance between adjacent heat switching layer is substantially identical.

In this way, the size of the plurality of fin keeps uniformly, for instance, fin is from a module to the extension of another module, the plurality of fin such as not only keeps identical spacing, also keeps identical height, it is not necessary to revise especially. Therefore, it is possible to use standard fin.

More preferably, the plurality of fin defines height on described stacking direction, and described height is substantially equal between the first heat exchange layers and the 3rd heat exchange layers of described first pair or described second centering the distance that exists or equal to the distance existed between the second heat exchange layers and the 4th heat exchange layers.

Therefore these fins occupy this of each module to all free spaces between adjacent layer so that it is the heat exchange surface of restriction maximizes.

Advantageously, described gap is present on the direction being substantially perpendicular to described stacking direction.

On first module and the second module preferably flow direction processing air in air conduit, front and back are placed each other, and place with being preferably parallel to one another, so that be easier to install, and by shared volume minimization. It is highly preferred that gap direction is substantially parallel direction.

In a preferred embodiment, the length in described gap is preferably incorporated between 5mm to 50mm.

Preferably, described first heat exchange layers and the second heat exchange layers are respectively provided with the first width and the second width, and the width of the plurality of fin is substantially equal to the summation of the length in described first width, described second width and described gap.

Further, in order to make the heat exchange surface that limited by the plurality of fin maximize, the width of these fins is wide as far as possible, thus cover the length in the whole width of ground floor, the whole width of the second layer and gap therebetween.

In most popular embodiment, described first heat exchanger module and described second heat exchanger module are arranged in the air conduit of described air line, the plurality of fin includes multiple wall, each wall defines the heat exchange walls surface extended out from described first and/or described second heat exchange layers, and the plurality of wall is arranged so that in described air hose the flow direction of the described process air of flowing is arranged essentially parallel to described heat exchange walls surface.

Multiple fins define the multiple tunnels formed by fin walls in this way, and these tunnels are used as the guiding tool processing air in air line. Therefore, so the turbulent flow processing air is minimized.

Preferably, described first heat exchanger module and described second heat exchanger module are arranged in the air conduit of described air line, described first module and described second module and described air conduit and are reciprocally arranged so that in described air conduit the flow direction of the described process air of flowing is substantially perpendicular to described stacking direction.

The heat exchange layers that heat exchange wherein occurs is positioned among a part for air loop. In order to maximize heat exchange, preferably flow through process air stream " shock " module substantially in vertical manner of air conduit, that is, its mode is the direction processing air stream in the module flat so that being limited by module stack direction and longitudinal extension and air conduit is perpendicular. In this way, air turbulence be minimized and heat transmission be maximized. Therefore, when the first heat exchanger and the second heat exchanger include module, it is preferred that configuration is to have two modules substantially parallel in air conduit. It is highly preferred that the two module also is normal to the longitudinal extension of air conduit.

Advantageously, described first heat exchanger module and described second heat exchanger module are arranged in the air conduit of described air line, described air conduit and described first thermal modules and described second module and are arranged essentially parallel to described heat exchange layers by the flow direction being reciprocally arranged so that the described process air entered in described air conduit.

In this embodiment, owing to different heat exchange layers are parallel to process air-flow direction itself, so the resistance run into by the process air flowing through module is minimized.

The tunnel-effect of fin is best simultaneously.

Advantageously, described first heat exchanger module and described second heat exchanger module are arranged in the air conduit of described air line, described air conduit and described first module and described second module and are arranged essentially parallel to the described direction in described gap by the flow direction being reciprocally arranged so that the described process air entered in described air hose.

These modules thus preferably process air flow direction on each other before and after location, in order to make heat exchange maximize.

Advantageously, this drying machine includes for making described process air at the fan of described air line internal recycle.

Generally, described fan is constructed such that to blow described process air, its mode is be spatially asymmetric so that processing air through the spatial distribution of flow velocity of the transverse section of described air line, thus having the higher region of flow velocity and the relatively low region of flow velocity. This is often as fan and causes relative to " non-central " position of air line. Therefore, the geometry of multiple fins improves this heterogeneity.

Preferably, described first heat exchanger module and described second heat exchanger module define the first longitudinal direction of the heat exchange layers of described first module and the second longitudinal direction of the heat exchange layers of described second module, and described first longitudinal direction and the second longitudinal direction are substantially parallel to one another.

It is highly preferred that described first heat exchanger module and/or described second heat exchanger module are arranged so that the flow direction of the described process air that described first longitudinal direction of described heat exchange layers and/or described second longitudinal direction be substantially perpendicular in described air conduit.

The geometric position of these modules is optimized all the time, in order to makes heat exchange maximize and makes the air turbulence in air conduit minimize.

In a preferred embodiment, the described entrance header box of described first heat exchange module and/or described second heat exchange module and described outlet header box are along self location, ground of described stacking direction.

In particular configuration, the first module and the one or both in the second module have self stacking entrance header box and outlet header box. For example, it is possible to realize these header boxs by being divided into the same pipe of two sections by separator. Each section is not in direct fluid communication with another section, and cold-producing medium has to flow through this or these layer to arrive outlet header box from entrance header box.

According to advantageous embodiment, the cross section of described entrance header box and/or described outlet header box and/or described middle header box is elongated, and wherein its minimum diameter is less than the width of described layer.

Preferably, the header box of the module of these heat exchangers is elongated, for instance, they have ellipse or square-section, in order to reduce the internal volume of these exchangers further thus reducing space, and also to save some cold-producing mediums. Cold-producing medium is strictly relatively costly, and is preferable to minimize that the cold-producing medium for giving heat exchange amount. Additionally, due to process air conduit be reduced for the part placing header box, therefore the extension of passage can be increased, so exchange surface (such as, the total surface of channel layer and fin) can be increased. In one direction, the minimum dimension of cross section is fixing: it must wide must be enough to be connected on one end of layer and therefore it must be at least equally wide with layer. But, in vertical direction, Breadth Maximum or diameter can be decreased below the width of layer.

It is highly preferred that the described cross section of described entrance header box and/or described outlet header box and/or described middle header box is oval or rectangle.

Advantageously, described passage has the hydraulic diameter less than or equal to 5mm.

According to embodiments of the invention, at hydraulic diameter D_HIt is defined as

$D_H=\frac{4A}{P}$

Wherein, when profit week of the cross section that A is the cross-sectional area of passage and P is passage, the hydraulic diameter of each passage less than or equal to 5mm, i.e. D_H�� 5mm, it is more preferred to D_H�� 3mm, even more preferably still D_H��1mm��

Due to the size of hydraulic diameter, the module of the present invention can include many passages, and therefore cold-producing medium stream is divided into multiple less cold-producing medium stream, one, each passage stream.In this way, the pressure drop of the cold-producing medium in passage decreases compared with the refrigerant pressure drop in larger passage.

Additionally, it is known that the maximum pressure that pipe can tolerate and its hydraulic diameter are inversely proportional to. Therefore little hydraulic diameter means that the pressure that passage can tolerate is higher than bigger pipe. For this reason, the heat pump circuit of the drying machine of the present invention can use high-pressure refrigerant, such as carbon dioxide.

Additionally, remain due to less size, compared with in standard heat pump drying machine, the amount suitably running required cold-producing medium of module is less. Owing to required amount is low, therefore it is also contemplated that use inflammable hydro carbons.

The shape of cross section of passage is incoherent for the present invention, and it can be square, rectangle, circular (in this case, hydraulic diameter is consistent with diameter of a circle), ellipse, etc. For all passages in the plurality of passage, the cross section of the plurality of passage needs not to be identical, but it can be different, and different passage can have the combination of possible cross section listed above. It addition, cross section can change in both hydraulic diameter and/or shape along extending in of passage.

Preferably, described heat exchange layers includes multiple passages parallel to each other.

Preferably, these passages extend along the direction being arranged essentially parallel to horizontal plane, and are also perpendicularly to process the flowing of air stream when drying machine runs. In other words, the passage preferably with the diameter much smaller than its length extends to the second header box from the first header box, and its mode is so that their longitudinal extension result is arranged essentially parallel to horizontal plane and is perpendicular to the flowing processing air (with this process air generation heat exchange).

If these passages are straight lines, their longitudinal extension (and longitudinal direction) is corresponding to their longitudinal axis. If these passages are not straight lines, such as they form arch, their longitudinal extension (and longitudinal direction) is corresponding to engaging the line of a point (these passages leave from entrance header box/outlet header box) and the first point (have ultimate range with this entrance header box/outlet header box longitudinal axis) from this point at this first.

These passages can include strengthening the heat transmission between cold-producing medium and air-treatment stream straight line portion and/or protruding or other cause the element of eddy current. Additionally, passage can include smooth or wavy inner surface and/or outer surface, and can include bend pipe or bending section.

In a preferred embodiment of the invention, these passages are straight lines. In the additional embodiment of the present invention, these passages include the multiple straight line portioies being connected to each other via U-shaped bend pipe. In this latter embodiment, self ground of the preferred in the vertical direction of these straight line portioies is stacking. Different embodiment according to the present invention, these straight line portioies are coplanar, it is more preferred in the plane being parallel to horizontal plane. According to further embodiment, these passages bend thus forming arch, and their longitudinal extension is preferably still perpendicular to this process air stream. This latter embodiment is particularly used to the module of the drying machine of the present invention be placed on the most appropriate location processed in air line. It is true that this process air line known exists in which that this process air stream is the part with less eddy current evenly. Therefore it is best over these locations in the heat exchange processed between air stream and cold-producing medium.The passage of arch allows also this module to be positioned in be existed on other objects or narrow position, thus developing free space and/or to reduce the restriction provided by the unequal distribution of air stream generally better.

Advantageously, described first heat exchanger includes than the described second more heat exchanger module of heat exchanger.

Brief Description Of Drawings

Will make reference to read, these and other feature and advantage making the present invention are become more preferably clear by below that some are exemplary and non-limiting example description, wherein:

-Fig. 1 is the schematic diagram of the clothesdrier according to the present invention, has wherein for clarity sake removed some elements;

-Fig. 2 is the perspective view of a part for the embodiment of the drying machine of the present invention of Fig. 1, wherein removes shell;

-Fig. 3 is the perspective view in the cross section of the element of the drying machine of Fig. 1;

-Fig. 4 a and Fig. 4 b is schematic elevational view and the top view of the embodiment of the heat exchanger module of the drying machine of the present invention of Fig. 1 respectively;

-Fig. 5 a and Fig. 5 b is schematic elevational view and the top view of the additional embodiment of the heat exchanger module of the drying machine of the present invention of Fig. 1 respectively;

-Fig. 6 a and Fig. 6 b is schematic elevational view and the top view of another additional embodiment of the heat exchanger module of the drying machine of the present invention of Fig. 1 respectively;

-Fig. 7 a and Fig. 7 b is schematic elevational view and the top view of the embodiment of the connection between two heat exchanger modules in any example of Fig. 4 a-4b to Fig. 6 a and Fig. 6 b respectively, and some of them element is not drawn into;

-Fig. 8 a and Fig. 8 b is schematic partial, exploded perspective view and the top view of a module in two modules of the clothesdrier being not belonging to the present invention;

-Fig. 9 a, Fig. 9 b and Fig. 9 c are two perspective schematic view (wherein second figure is exploded) and the top views of two modules of the clothesdrier of the present invention of Fig. 1;

-Figure 10 is the cross section of the parts of the clothesdrier of Fig. 1;

-Figure 11 is the zoomed-in view of Fig. 9 c;

-Figure 12 is the cross-sectional side view of the module of Fig. 9 a-9c; And

-Figure 12 a is the amplification details of Figure 12.

The detailed description of the preferred embodiment of the invention

With reference first to Fig. 1, indicate with 1 according to the clothesdrier entirety that the present invention realizes.

Clothesdrier 1 includes preferably but is not necessarily the outer container shell 2 of parallelepiped shape and such as has the hothouse of hollow cylinder shape, such as cylinder 3, for accommodating laundry and clothes generally to be dried and clothing. Cylinder 3 is preferably rotatably fixed on this shell, so make it can around preferably horizontal axis (in an alternative embodiment, rotation axis can be vertical or tilt) rotation. The such as door by being preferably hinged on shell realizes entering cylinder 3, and this can open and close the opening realized with this shell basis.

In more detail, shell 2 generally includes the header board 20, squab panel 21 and two sidewall panelings that are all arranged on base portion 24. Panel 20,21 and base portion 24 can have any suitable material. Preferably, base portion 24 realizes with plastic material. Preferably, base portion 24 is molding.

Preferably, base portion 24 includes upper case and lower case (in fig. 2, only lower case 24a is visible).

Drying machine 1 limits the horizontal plane (X ", Y ") of the substantially plane on ground at drying machine and is perpendicular to the vertical direction Z of plane (X ", Y ") ".

Clothesdrier 1 also includes the electric motor assembly (not shown in picture) for making turnover cylinder 3 rotate according to order along its axis portion in the enclosure.Shell 2, turnover cylinder 3, door and motor are parts common in the art and are considered as known; Therefore they will not be described in detail.

Drying machine 1 comprises additionally in and is depicted as in FIG illustrating the process air loop 4 processing air stream through multiple arrows of the flow path of drying machine 1, and this process air loop includes cylinder 3 and air handling duct 11. In base portion 24, air handling duct 11 includes the air conduit 11a formed by the connection of upper case and lower case 24a. Air handling duct 11 is preferably connected on two opposition sides of cylinder 3 with its opposite ends. Process air loop 4 and can also include fan or aerator 12 (see Fig. 1) and electric heater (attached not shown).

Air conduit 11a can be integral with base portion 24 as depicted in fig. 2, or it can be attached to the different elements on base portion. Additionally, air conduit 11a is possible not only to be arranged in base portion 24, but also can at the corresponding part of top section or lateral part, the shell 2 being positioned at clothesdrier 1.

The drying machine 1 of the present invention comprises additionally in heat pump 30, and this heat pump includes being otherwise known as the first heat exchanger 31 of condenser and the second heat exchanger 32 of the vaporizer that is otherwise known as. Heat pump 30 farther includes the cold-producing medium closed-loop path that cold-producing medium flows wherein (schematically to be described with the line being connected on the second heat exchanger by the first heat exchanger and vice versa in picture, see Fig. 1 in detail), when drying machine 1 operates, cold-producing medium cools down in the corresponding part of condenser 31 and can condense, thus discharging heat; And the corresponding part at the second heat exchanger (vaporizer) 32 warms, potentially even evaporates, thus absorbing heat. Alternately, occurring without phase transformation in condenser and/or vaporizer, this instruction in this case, is gas heater and gas cooler accordingly, and cold-producing medium cooling or cold-producing medium warm, and frozen-free or evaporation accordingly. Hereinafter, these heat exchangers are named as condenser and vaporizer or the first heat exchanger and the second heat exchanger respectively.

In more detail, heat pump circuit via pipe 35 (visible in fig. 2), being warmed by wherein cold-producing medium via compressor 33 and being likely to the second heat exchanger 32 of experience phase transformation from liquid to steam is connected on the first heat exchanger 31 that wherein cold-producing medium cooling and being likely to condenses again. That cool down or condensation cold-producing medium back arrives vaporizer 32 via expansion gear 34 (such as choker, valve or capillary tube).

The condenser 31 of heat pump 30 and vaporizer 32 are at least partially situated at the corresponding part processing air line 11. It is highly preferred that they are positioned at the corresponding part of the air conduit 11a of base portion 24.

When the condensation dryer that wherein Air processing circuit 4 as depicted in fig. 1 is closed loop, condenser 31 is positioned at the downstream of vaporizer 32. The air leaving cylinder 3 enters pipeline 11 and arrives processing the vaporizer 32 that air cools down and dehumidifies. Dry cooling processes air and continues to flow through pipeline 11, enter condenser 31 until it, in this condenser, is made process air warm by heat pump 30 before being again introduced into cylinder 3.

The end of a thread filter 103 for stopping the end of a thread is preferably among drying machine 1. Before the end of a thread filter 103 is preferably located in process air arrival vaporizer 32, for instance when processing air and leaving cylinder 3.

Characteristic according to the present invention, the first exchanger 31 and/or the second heat exchanger 32 farther include along the one or more heat exchanger modules 10 processing air line 11 location. Specifically, as already mentioned, the first exchanger 31 and the second heat exchanger 32 are positioned among air conduit 11a, and therefore module 10 is positioned among air conduit 11a. Therefore, air conduit 11a optimum position in shell 2 is to be available for, with wherein enough spaces, the volume that these modules 10 of trustship are identical.

Referring now to Fig. 2, depict the base portion 24 of drying machine 1, it is shown that the multiple modules 10 according to the present invention included in the vaporizer 32 of heat pump 30 and condenser 31. In mentioned accompanying drawing, remove housing 2 and the cylinder 3 of drying machine 1, in order to be showing along heat exchanger that process air line 11 location, that be more specifically positioned in ventilating duct 11a. Although as it has been described above, in the accompanying drawings, vaporizer 32 and the condenser 31 of drying machine 1 both include heat exchanger module 10 it should be appreciated that be, it is possible to only vaporizer 32 or only condenser 31 include this generic module 10. It addition, individual module 10 can be included among vaporizer 32 or condenser 31. In addition, when both including more than one module 10 according to vaporizer of the present invention and condenser, vaporizer can include module with condenser varying number (with reference to the accompanying drawings 2, wherein vaporizer 32 includes two modules 10 and condenser includes four modules 10). Preferably, the module that condenser 31 includes is more than vaporizer 31. When the drying machine of the present invention includes more than one module 10, module can be identical or different.

Referring now to different embodiments depicted in figure 3, the structure of individual module 10 is described from Fig. 4 a-4b to Fig. 6 a-6b, Fig. 9 a-9c and Figure 11.

With reference to Fig. 3, when the module of indication is by partial segments, heat exchanger module 10 includes entrance header box 5 and outlet header box 6. Entrance header box 5 and outlet header box 6 preferably have the structure of pipe. These header boxs have longitudinal extension along the axis corresponding to the cold-producing medium main flow direction in these header boxs. Cold-producing medium flows in module 10 via import header box 5 and leaves this module via outlet header box 6. Each personal 7 multiple passages indicated are connected to by entrance header box on outlet header box and vice versa, so make cold-producing medium can enter or leave this module. The plurality of passage is through being subject to processing the flowing of air, i.e. passage 7 is positioned at the air conduit 11a of drying machine 1. Passage 7 is due to their configuration, it is allowed to better than known drying machine at cold-producing medium and the heat exchange processed between air.

Passage 7 limits the longitudinal direction X that it extends along, and this longitudinal direction is corresponding to the longitudinal extension of heat exchange layers 8. Preferably, these passages 7 are mounted within the module 10, so make their longitudinal extension X be substantially perpendicular to process air-flow direction. Preferably, its longitudinal extension is arranged essentially parallel to horizontal plane. In other words, it is preferable that when seated, longitudinal direction X is located parallel in the plane of (X ", Y ") plane that limited by drying machine 1.

Preferably, the cold-producing medium stream in passage 7 is substantially perpendicular to process air stream. But, depend on the direction processing air stream, the direction processing the direction of air stream and cold-producing medium stream can alternately angulation in-between.

These passages 7 are grouped in heat exchange layers 8: each heat exchange layers includes preferably located adjacent one another and parallel multiple passages 7. It is highly preferred that each module 10 includes multiple heat exchange layers 8; It is highly preferred that all layers 8 self ground on stacking direction Z is stacking; And overlie one another even further preferably, be parallel to, thus essentially form parallel multiple rows of. Preferably, stacking direction is vertical direction, i.e. Z and Z " parallel to each other. Alternately, can between stacking direction and vertical direction angulation.

According to embodiments of the invention, heat exchange layers 8 includes single pipe, and this pipe has such as long and narrow cross section, includes two substantially parallel plane surface 9a, 9b. In this pipe, it is achieved separator 8a, in order to by the plurality of for longitudinally divided for the inside of this pipe one-tenth passage 7. This structure is substantially described to some extent in the cross section of the heat exchange layers 8 of Figure 10. The cross section of single passage 7 can be arbitrary. Each heat exchange layers 8 has width W, and this width depends on the quantity (see Fig. 4 b and Fig. 5 b) of the passage with location adjacent one another are.

The heat exchange layers 8 of every pair of adjacent stacks of module connects via many fins 50. Preferably, the upper surface 9a of heat exchange layers 8 is connected on the lower surface 9b of heat exchange layers 8 via multiple fins 50 and (such as, sees Fig. 4 a). The geometric consequence of these fins described in detail below.

The width W of layer 8 limits direction Y, and the direction limits heat exchange layers plane (X, Y) successively together with the longitudinal direction X of passage 7. When module is installed on drying machine, heat exchange layers plane (X, Y) can be parallel to the horizontal plane (X ", Y ") limited by drying machine 1 or relative to this planar tilt. Alternatively or additionally, heat exchange layers plane (X, Y) can be perpendicular to stacking direction Z or formed angle. Additionally, each heat exchange layers 8 may not be plane, but such as curved surface, for instance there is the concavity pointed to up or down along stacking direction.

For example, the section of header box 5,6 is represented in figure 3. Header box 5,6 includes the cylindrical envelope 107 wherein realizing multiple hole 7a, and the passage 7 forming heat exchange layers 8 is inserted among the plurality of hole. But, various configuration is possible.

The cross section of header box 5,6 is circular (as described in accompanying drawing), or elongated. The cross section of header box refers to the header box cross section along the plane being perpendicular to stacking direction Z. Preferably, oblong cross-section be such that its minimum diameter, namely through the smallest chord of the geometric center of cross section less than the width W of layer 8.

Enter the cold-producing medium of module 10 via entrance header box 5 to can come from the outlet header box 6 of another module 10, carry out compressor 33 or from capillary tube/expansion valve 34. Additionally, the cold-producing medium leaving outlet header box 6 can be directed toward the entrance header box 5 of another module 10, towards capillary tube/expansion valve 34 or towards compressor 33. Connection between compressor 33, module 10 and capillary tube 34 and between module 10 is formed via pipe 35, as seen in Figure 2. In the following figure, the flowing of cold-producing medium R will indicate with the dotted line of the directional arrow having in the flowing direction.

Each heat exchange layers 8 includes two opposite ends 8b, 8c. In certain embodiments, an end 8b is connected on entrance header box 5, and opposite ends 8c is connected on outlet header box 6. Alternately, can there is additional middle header box, as detailed below.Alternately, end 8b, 8c of this layer may be connected to the end of adjacent layer, and simply lowermost layer and/or top be connected to entrance header box or outlet header box.

The first embodiment of the module 10 of the drying machine 1 according to the present invention described in figs 4 a and 4b, entrance header box 5 and outlet header box 6 are by (i.e. their the vertical axis Z that axis Z is drying machine 1 " vertically) it is arranged on the base portion 24 of drying machine 1; parallel to each other, and passage 7 X along the longitudinal direction connecting two header boxs 5,6 is substantially straight. Stacking direction Z is parallel to vertical direction Z ". Passage 7 is divided in heat exchange layers 8, wherein every layer of different pipe including limiting upper surface 9a and lower surface 9b (see Figure 10), and passage 7 is implemented in this pipe. Entrance header box 5 is connected on outlet header box 6 by multiple heat exchange layers 8, all heat exchange layers have and first end 8b contrary longitudinally of one another and the second end 8c, and this first end is connected on this entrance header box and this second end is connected to this and outreaches on bobbin carriage. Self is stacking along vertical direction Z for heat exchange layers. It addition, each heat exchange layers 8 has a perpendicular to the width Y of the longitudinal extension X of these passages 7. In the present embodiment, this width Y is parallel to horizontal plane (X ", Y ") and air-flow direction; That is, these layer planes (X, Y) are level (being parallel to horizontal plane (X ", Y ")). In other words, module 10 is mounted so that these heat exchange layers 8 formation processes the parallel horizontal plane that air flows betwixt. In each header box 5,6, in the corresponding position of end 8b, 8c of each heat exchange layers, multiple hole 7a are implemented, and insert a passage 7 in each hole 7a. The row (only visible in figure 3) of the hole 7a so formed is parallel to each other and is perpendicular to the longitudinal extension Z of header box 5,6.

Cold-producing medium R is via ingate 5_EnterFlow direction along the longitudinal extension Z being parallel to header box 5 enters the header box 5 of module 10, and branches into each passage 7 via hole 7a. Heat exchange layers 8 is the flow direction according to cold-producing medium " parallel " each other, it means that cold-producing medium flows in the same direction in all layers. In each passage 7 forming identical layer 8, the flowing of cold-producing medium is arranged essentially parallel to cold-producing medium flow direction in other passages and has equidirectional. Cold-producing medium is subsequently via the outlet opening 6 of outlet header box 6_{Go out}Leave module 10.

Cold-producing medium R flow direction in header box 5,6 is substantially perpendicular to process air stream. Additionally, the flowing that cold-producing medium is in entrance header box 5 is parallel to cold-producing medium flowing in outlet header box 6, but there is opposite direction.

In the different embodiments do not described, entrance header box can also be parallel with the cold-producing medium flowing in outlet header box and have identical direction.

Another embodiment of module 10 according to the present invention described in figs. 5 a and 5b, entrance header box and outlet header box 5,6 self ground on stacking direction Z is stacking. In other words, entrance header box is formed by identical pipe or pipe with outlet header box 5,6, it transverse separators 17 including this pipe is divided into two parts separately. The module 10 of this embodiment thus include three the parallel vertical header boxs connected by heat exchange layers 8, but two header boxs in these header boxs (entrance header box and outlet header box 5,6) are implemented as the single pipe being divided into two.Thribble case 5a is the middle header box for cold-producing medium stream. Heat exchange layers 8 is parallel to each other, defines the layer plane (X, Y) being parallel to horizontal plane (X ", Y "). Each layer 8 includes two opposing longitudinal ends 8b, 8c, and one end is connected with entrance header box or outlet header box 5,6, and the other end is connected with middle header box 5a. Therefore the cold-producing medium stream entering entrance header box 5 stoped by separator 17 thus arriving outlet header box from entrance header box. Therefore these heat exchange layers 8 are divided into two groups: first group of G1 and are connected to by Part I 5 (entrance header box 5) on middle header box 5a, and centre header box 5a is connected on Part II (outlet header box 6) by second group of G2.

On vertical direction Z, the cold-producing medium R of entrance entrance header box 5 flows through and is distributed in first group of G1 heat exchange layers 8 by hole 7a, and towards middle header box 5a flowing in the parallel channels that this cold-producing medium is in first group of G1. Therefore, these layers in first group of G1 are relative to cold-producing medium levelling row. Cold-producing medium stream leaves first group of G1 heat exchange layers 8 and enters middle header box 5a, and in middle header box, they merge. From middle header box 5a, cold-producing medium stream is subsequently into second group of G2 heat exchange layers 8, thus arriving outlet header box 6. Therefore, these heat exchange layers in second group of G2 are parallel to each other also relative to cold-producing medium stream. But, these layers in two groups G1, G2 are series connection relative to cold-producing medium stream. It practice, cold-producing medium flows abreast in all heat exchange layers belong to same group, but therefore it must be series connection with these layers in given sequential flowing traverse first group and second group of heat exchange layers-the two group.

The additional embodiment of the module 10 according to the drying machine 1 according to the present invention described in Fig. 6 a and Fig. 6 b, module 10 only includes two header boxs 5,6, entrance header box and outlet header box. In this case, header box is positioned on horizontal plane (X ", Y "), it is more preferred to be along air-flow direction Y " place. It addition, not every layer is all connected with entrance header box and outlet both header boxs 5,6, it is connected with entry level and outlet layer respectively on the contrary, only top with lowermost layer. End 8b, 8c of other all layers 8 are connected to its adjacent layer, for instance, one end is connected to its lower end and one end is connected thereto layer. Therefore, different layers 8 is formed by single channel substantially, and the pipe of this single passage self bends repeatedly to form stack layer. It is be placed on entrance header box in substrate 24 and outlet header box 5,6 is arranged essentially parallel to process air-flow direction Y ", also have the cold-producing medium produced in header box flowing to be parallel to horizontal plane (X ", Y "). But, entrance header box and outlet header box 5,6 are along vertical direction Z " be positioned at different height in base portion 24, be therefore all multiple layers 8 of being formed by single pipe still with vertical direction Z " on corresponding stacking direction Z self stacking. Channel layer 8 is parallel to each other, and its longitudinal extension X is perpendicular to process air-flow direction Y ". The single pipe within it realizing different passage 7 has the first straight line portion 8e limiting first passage layer, this first passage layer is connected with entrance header box 5 via an end 8b in its end, then this pipe includes return bend 8f and it is parallel to Part I 8e and extends towards the second straight line portion 8g, this second straight line portion defines second channel layer, etc., until forming the last straight line portion 8z of last layer, this last straight line portion is connected to outlet header box 6 by its end 8c.In this way, each header box 5,6 is formed single perforate 7a, and it is believed that the cold-producing medium stream in different layers 8 is series connection relative to cold-producing medium stream. The cold-producing medium stream defined in the different passages 7 of channel layer is parallel to each other. It addition, planar channel layer (X, Y) is parallel to horizontal plane (X ", Y ").

The stream of the cold-producing medium R in entrance header box and outlet header box 5,6 is preferably parallel to each other. The two stream can have identical direction or opposite direction.

In the example described of Fig. 4 a and Fig. 4 b to Fig. 6 a and Fig. 6 b, it does not have illustrate the fin 50 between layer completely, because focusing on the geometry of module 10. Hereinafter fin 50 better will be described.

With reference to Fig. 7 a and Fig. 7 b, the first module 10 and the second module 10 ' are connected to each other. Two modules 10,10 ' are all according to the present invention, for instance according to any embodiment described in Fig. 4 a and Fig. 4 b to 6a and Fig. 6 b. In the described embodiment, all such module all only represents with reference number 10, but in the embodiment including two modules, by using two different reference numbers 10,10 ', divide symbol to make a distinction between a module and another module especially with angle. Therefore, hereinafter, all elements of the first module 10 all represent by the numeral of the example according to Fig. 4 a and Fig. 4 b to 6a and Fig. 6 b, and the respective element of the second module then divides symbol to represent with adding angle after same numbers.

First heat exchanger module and the second heat exchanger module 10,10 ' can such as belong to condenser 31, or both belong to vaporizer 32, or one belongs to vaporizer and another belongs to condenser. Two modules 10,10 ' described in Fig. 7 a and Fig. 7 b are all that the embodiment according to Fig. 4 a, Fig. 4 b realizes, but, they can realize according to any embodiment of the present invention. It addition, the first module and the second module can also be different from each other, i.e. the first module may belong to two different embodiments of the present invention with the second module.

Two modules 10,10 ' have the heat exchange layers 8,8 ' being parallel to horizontal plane. With vertical direction Z " and process corresponding stacking direction Z, Z of air stream ' and be substantially perpendicular to longitudinal extension X, X of layer 8,8 ' '. Cold-producing medium R flows into the entrance header box 5 of the first module 10, and himself separates in multiple passages 7, and these different streams are in merging in outlet header box 6 after passage 7. Cold-producing medium R leaves the first module 10 via outlet header box 6, hence into the entrance header box 5 ' of the second module 10 '. In the second module 10 ', cold-producing medium again travels across multiple passage 7 ' and leaves the second module via outlet header box 6 '. Therefore, in this case, module 10,10 ' is connect (first relative to processing air stream, process air stream traverse the first module 10, then pass through the second module 10 '), and it is series connection (first, cold-producing medium, through the first module 10, then passes through the second module 10 ') relative to cold-producing medium stream.

Not shown fin in the embodiment of Fig. 7 a and Fig. 7 b.

Alternately, it is possible to achieve other the different connections many between module 10,10 '.

Referring now to Fig. 8 a and Fig. 8 b, describe the first heat exchanger of the clothesdrier being not in accordance with realization and/or two modules 10 of the second heat exchanger 31,32_n.i.��10��_n.i..Two modules 10_n.i.��10��_n.i.It is located adjacent to, between them, there is spacing or gap, this spacing or gap g_n.i.It it is the distance existed between the layer of disparate modules. As shown, each module 10_n.i.��10��_n.i.Between every pair of adjacent heat switching layer in the same module (that is, between every pair of layer of every pair of face each other) include multiple many fins 50_n.i.��50��_n.i.. Fin is for increasing the cold-producing medium flowed in the module and the total heat exchange surface processed between air flowed in air conduit 11a.

As shown in especially Fig. 8 b, it is contemplated that each module 10_n.i.��10��_n.i.Single pair of adjacent heat switching layer, it can be seen that be inserted in the different multiple fins 50 between the multipair adjacent layer belonging to same module_n.i.��50��_n.i.Different from each other and separate. The gap g existed between heat exchange layers and the heat exchange layers of the second module of the first module_n.i.With the multiple fins 50 being arranged in two disparate modules_n.i.��50��_n.i.In two different fins between exist gap be substantially identical. In Fig. 8 a, by two modules 10_n.i.��10��_n.i.In top remove, to illustrate separated multiple fin 50 better_n.i.��50��_n.i., multiple fins of every pair of two adjacent layers belong to same module.

Referring now to Fig. 9 a to Fig. 9 c, two modules 10,10 ' that be connected according to the present invention, that be called the first module and the second module are described. Module 10,10 ' is arranged in air line 11 and is arranged in air conduit 11a more accurately, and they are processed the shock of air, in order to process air exchange heat. Heat specifically fin about the adjacent layer of heat exchange layers 9a, the outer surface (such as depicted in figure 10 those) of 9b and link block is exchanged. Flowing and clash into the fan 12 that preferably be may be located in air loop 11 of air that processes of module 10,10 ' and blow in air line.

Module 10,10 ' can belong to the first heat exchanger or the second heat exchanger 32,31, or belongs to both (one module of each heat exchanger).

Module 10,10 ' is arranged in air line 11 in the way of they are processed a string shock of air, for instance, process air and first pass through module 10 and then pass through module 10 '. Module 10,10 ' is installed on air line (such as, in base portion 24) be located adjacent to along air line 11, and these layers of two modules are separated by gap g. Although in the accompanying drawing described, module 10,10 ' has parallel stacking direction (the stacking direction Z of module 10 is parallel to the stacking direction Z ' of module 10 '), and in alternate embodiment (not shown), the two stacking direction can shape be at an angle between which. It addition, in the described embodiment, it is preferable that common stacking direction Z, Z ' is vertical direction Z ".

It is further preferred that the plane of these layers of the plane (X, Y) of these layers of the first module 10 and the second module 10 ' (X ', Y ') it is parallel to each other. It is highly preferred that the plane of these layers of the plane of these layers of the first module and the second module is level, i.e. they are parallel to (X ", Y ") plane.

Even further preferably, these modules are positioned at air conduit 11a, so that process air stream to be substantially perpendicular to stacking direction Z, Z ' upper shock module 10,10 '.

Two adjacent blocks 10,10 ' are separated by the first gap g. The first gap is specifically there is between first heat exchange layers 8 and second heat exchange layers 8 ' of the second module 10 ' of the first module 10.The header box 5,6,5 ', 6 ' of the first module and the second module 10,10 ' can contact with each other, or they can also be separated by the second gap g2 of different from the first gap g (such as, less).

Gap g is defined as the space or spaced apart between the first heat exchange layers 8 and second heat exchange layers 8 ' of the second module 10 ' of the first module 10, more properly, gap g is the boundary edge 8r ' of the second heat exchange layers 8 ' of boundary edge 8r to second module 10 ' of the first heat exchange layers 8 from the first module 10 distance existed. This figure 11 illustrates.

Depending on two points in the first edge of considering and second edge 8r, 8r ', gap g can have constant length or different variable-lengths. As mentioned, two modules 10,10 ' can be parallel or uneven, and in this uneven situation, edge 8r, 8r ' neither be parallel to each other, thus there is between them variable distance. Preferably, gap g has constant length. At edge 8r, 8r ' parallel, as depicted in figure 11, gap g has constant length all the time.

Preferably, gap direction is parallel to air-treatment flow direction Y ", then itself and then it is meant that its plane (X, Y) being preferably parallel to these layers and (X ', Y ') self.

According to inventive feature, the first module and the second module 10,10 ' share multiple fins 50. These many fins 50 are positioned on the ground floor 8 of the first module 10 and on the second layer 8 ' of the second module 10 ', extend through gap g. In other words, contrary with what describe in Fig. 8 a and Fig. 8 b, single fin in multiple fins 50 forms the bridge joint between ground floor and the second layer 8,8 ' of the first module and the second module 10,10 ' respectively.

It is highly preferred that in each module 10,10 ', the plurality of fin 50 is at stacking direction Z, Z ' upper and two contact adjacent layers. Preferably, in each module 10,10 ', there is at least one pair of adjacent heat switching layer 8 to, two layers that 8 pairs ' (see Figure 12), it is defined as in same module 10,10 ' along stacking direction Z, Z ' is the most close. Between two adjacent layers of every centering, insert many fins 50, and the opposing surface of more preferably its layer each with the two of every centering contacts.

Multiple fins 50 are more than being individually positioned on ground floor and the second layer of the first module and the second module, and it has also taken up the space between ground floor and the second layer, i.e. it extends through gap g. Therefore, the size making two modules 10,10 ' remains unchanged, for instance, identical with the situation described in Fig. 8 a, Fig. 8 b, the heat exchange surface of the module 10,10 ' of Fig. 9 a-9c of the present invention is increased.

As appreciable in Figure 11 and Figure 12, the length of multiple fins 50 is equal to the summation of the length of this gap, ground floor and the second layer, in other words, and its length equal to W+W '+g.

The height h of the plurality of fin is preferably equivalent to first pair and/or second pair 8 pairs, 8 pairs ' in two adjacent layers between exist space D 1, D2. It is highly preferred that the space D 2 between space D 1 and these layers of the second centering between these layers of the first centering is substantially identical, itself so that equal to the height h of multiple fins 50.

In this way, the fin 50 of the most of available width and height that occupy module 10,10 ' is used in the surface of heat exchange and maximizes. As visible in Figure 12 a zoomed-in view of Figure 12 of heat exchange layers (illustrate first couple and second couple 8 couples, 8 couples '), these fins 50 each include the wall 50w extending (and be preferably also the equivalent layer from forming a pair with ground floor and the second layer extend) from ground floor and the second layer 8,8 '.Each wall 50w defines a heat exchange surface 50s, and this heat exchange surface is the surface (certainly, there are other surfaces that heat exchange occurs in the module) that heat exchange occurs.

In view of the cumulative volume of the free space between two adjacent layers of disparate modules and module preferably remains unchanged, the surface 50s using the geometry of above-mentioned fin is probably under substantially the widest, without increasing too many complexity when the manufacture of module, such as, it is not necessary to consider extremely complex surface.

Additionally, as in Fig. 9 a, Fig. 9 b it is better seen that, the wall 50w of fin defines " tunnel " t for processing air. These tunnels t is substantially along processing air-flow direction Y " extend. In this way, process air is directed across module 10,10 ' by the wall 50w of fin 50, thus reducing possible eddy current and turbulent flow. Identical with the example of Fig. 8 a and Fig. 8 b, the interruption in the relatively short tunnel after width will not obtain this kind of efficient result. Therefore these tunnels t realized by the wall 50w of fin improves cold-producing medium R and the heat exchange processed between air, thus decreasing the turbulent flow processing air.

Although in the embodiment that Fig. 9 a-9c, Figure 11 and Figure 12 describe, every pair of adjacent layer in module 10,10 ' includes multiple fin, it will be appreciated that, it is somebody's turn to do or these centerings only have some layers can include at the fin formed between that two-layer of a pair. A certain in module or some can be non-finned to layer. It addition, not all multiple fin can extend across two modules, in some cases, these fins can be restricted to the single pair of adjacent layer of individual module.

In accompanying drawing 3, Fig. 4 a-4b, Fig. 5 a-5b, Fig. 6 a-6b, Fig. 7 a-7b, Fig. 9 a-9c, although the distance between each layer in same module and the spacing of multiple fin seem constant, but this is intended merely to the clear of accompanying drawing and simplifies, the variable range between adjacent heat switching layer in any embodiment mentioned, in variable spacing that module 10,10 ' can be realized as having multiple fin and/or same module.

When the more than two module 10,10 ' of the connection according to the present invention is present in air line 11, as such as depicted in figure 2, the process air successive strokes disparate modules of flowing in air line 11. Accordingly, because module itself and specifically owing to fin is to processing air stream " turbulent flow minimizes effect " that cause, the first spatial distribution processing air being impacted module down-stream is different from the distribution processing air of same module upstream. For this reason, the geometry of another module of a module down-stream can be differently configured from the first geometry being impacted module. The module that this reasoning exists suitable in clothesdrier 1.

Claims (15)

1. a clothesdrier (1), including:

A. shell (2), this shell supports the hothouse (3) for receiving load to be dried;

B. processing air line (11), this process air line connects with this hothouse (3), processes air stream and is prone in this process air line to flow;

C. heat pump (30), this heat pump has the heat pump circuit that cold-producing medium (R) can flow wherein, described heat pump circuit includes: the first heat exchanger (31), and in this first heat exchanger, this cold-producing medium is cooled and this process air stream is heated; And second heat exchanger (32), in this second heat exchanger, this cold-producing medium is heated and this process air is cooled; Described first heat exchanger and/or described second heat exchanger are thermally coupled on this process air line (11), to carry out heat exchange between described cold-producing medium and the described process air stream of flowing in described heat pump circuit, and described first heat exchanger and/or described second heat exchanger (31;32) the first heat exchanger module (10) and the second heat exchanger module (10 '), each module (10 are farther included; 10 ') include

�� entrance header box (5; 5 '), described cold-producing medium (R) stream is directed in described module (10,10 ') by this entrance header box;

�� exports header box (6; 6 '), described cold-producing medium (R) is discharged by this outlet header box from described module (10,10 '); And

Many heat exchange layers of �� (8; 8 '), the plurality of heat exchange layers is by described entrance (5; 5 ') it is fluidly connected to described outlet header box (6; 6 ') on, in order to make described cold-producing medium (R) described outlet header box can be flow to from described entrance header box and/or vice versa; Described layer (8; 8 ') at predetermined stacking direction (Z; Z ') self ground upper is stacking, and each layer (8; 8 ') multiple passage (7 is included; 7 ');

It is characterized in that, described first heat exchanger module and described second heat exchanger module (10, 10 ') it is mounted adjacent one another, and the second heat exchange layers (8 ') of first heat exchange layers (8) of this first module (10) and this second module (10) with described stacking direction (Z, Z ') consistent direction is separated by gap (g), described first heat exchanger module and described second heat exchanger module (10, 10 ') multiple fin (50) is included, these fins are arranged at described first heat exchange layers and described second heat exchange layers (8, 8 ') both above and extend through described gap (g).

2. clothesdrier according to claim 1 (1), wherein, described first module (10) includes the 3rd heat exchange layers (8), 3rd heat exchange layers forms the first heat exchange layers that (8 pairs) are adjacent together with described first heat exchange layers on described stacking direction, and described second module (10 ') includes the 4th heat exchange layers (8 '), 4th heat exchange layers forms second to heat exchange layers (8 pairs ') at described stacking direction together with described second heat exchange layers, the plurality of fin (50) is arranged in described first pair and second pair (8 pairs respectively, 8 pairs ') in this ground floor and this third layer between and this second layer and the 4th layer between.

3. clothesdrier according to claim 2 (1), wherein, this second and the 4th distance (D2) between adjacent heat switching layer in distance (D1) between this first and the third phase neighbour's heat exchange layers in this first couple (8 couples) and described second pair (8 pairs ') is substantially identical.

4. clothesdrier according to claim 3 (1), wherein, the plurality of fin (50) defines height (h) on described stacking direction, this distance (D1) that described height (h) is substantially equal between this first heat exchange layers and the 3rd heat exchange layers in described first pair or described second pair (8 pairs, 8 pairs ') to exist or equal to this distance (D2) of existence between this second heat exchange layers and the 4th heat exchange layers.

5. the clothesdrier (1) according to any one of the preceding claims, wherein, described gap (g) is present on the direction being substantially perpendicular to described stacking direction (Z, Z ').

6. the clothesdrier (1) according to any one of the preceding claims, wherein, the length of described gap (g) is preferably included between 5mm and 50mm.

7. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchange layers and described second heat exchange layers (8,8 ') the first width and the second width (W it are respectively provided with, W '), the width of the plurality of fin (50) is substantially equal to the summation of the length of described first width (W), described second width (W ') and described gap (g).

8. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchanger module and described second heat exchanger module (10, 10 ') air conduit (11a) of described air line (11) it is arranged in, and the plurality of fin (50) includes multiple wall (50w), each wall defines from described first heat exchange layers and/or described second heat exchange layers (8, 8 ') the heat exchange walls surface (50s) extended out, the plurality of wall (50w) is arranged so that the flow direction (Y of the described process air flowed in described air conduit (11a), Y ') it is arranged essentially parallel to described heat exchange walls surface (50s).

9. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchanger module and described second heat exchanger module (10, 10 ') air conduit (11a) of described air line (11) it is arranged in, described first heat exchanger module and described second heat exchanger module (10, 10 ') and described air conduit (11a) be reciprocally arranged so that in the described air conduit (11a) flow direction (Y of the described process air of flowing, Y ') it is substantially perpendicular to described stacking direction (Z, Z ').

10. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchanger module and described second heat exchanger module (10, 10 ') air conduit (11a) of described air line (11) it is arranged in, described air conduit (11a) and described first heat exchanger module and described second heat exchanger module (10, 10 ') flow direction (Y of the described process air entered in described air conduit (11a) reciprocally it is arranged so that, Y ') it is arranged essentially parallel to described first module and described second module (10, 10 ') described heat exchange layers (8, 8 ').

11. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchanger module and described second heat exchanger module (10, 10 ') air conduit (11a) of described air line (11) it is arranged in, described air conduit (11a) and described first heat exchanger module and described second heat exchanger module (10, 10 ') flow direction (Y of the described process air entered in described air conduit (11a) reciprocally it is arranged so that, Y ') it is arranged essentially parallel to the described direction of described gap (g).

12. the clothesdrier (1) according to any one of the preceding claims, this clothesdrier includes for making described process air at the fan (12) of described air line (11) internal recycle.

13. the clothesdrier (1) according to any one of the preceding claims, wherein, at described first heat exchanger module and described second heat exchanger module (10,10 ') second longitudinal direction (X ') of first longitudinal direction (X) of these heat exchange layers (8) of described first module (10) and these heat exchange layers (8 ') of described second module (10 ') is defined in, and described first longitudinal direction and described second longitudinal direction (X, X ') it is substantially parallel to one another.

14. clothesdrier according to claim 13 (1), wherein, described first exchanger module and/or described second heat exchanger module (10,10 ') it is arranged so that described heat exchange layers (8,8 ') described first longitudinal direction and/or described second longitudinal direction (X, X ') flow direction (Y, Y ') of described process air that is substantially perpendicular in described air conduit (11a).

15. the clothesdrier (1) according to any one of the preceding claims, wherein, described first heat exchanger module and/or described second heat exchanger module (10,10 ') described entrance header box (5,5 ') and described outlet header box (6,6 ') along self location, ground of described stacking direction (Z, Z ').