CN203024504U - Plate-type evaporator - Google Patents
Plate-type evaporator Download PDFInfo
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- CN203024504U CN203024504U CN 201220709255 CN201220709255U CN203024504U CN 203024504 U CN203024504 U CN 203024504U CN 201220709255 CN201220709255 CN 201220709255 CN 201220709255 U CN201220709255 U CN 201220709255U CN 203024504 U CN203024504 U CN 203024504U
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- plate
- overheated
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Abstract
The utility model discloses a plate-type evaporator. The plate-type evaporator comprises an evaporation area (1) and an overheated area (2). The evaporation area (1) is formed through tight connection of a plurality of evaporation heat exchanging pieces (11) and is used for achieving heat exchange between a refrigerating medium (A) and refrigerating fluid (B). The overheated area (2) is formed through tight connection of a plurality of overheated heat exchanging pieces (21) and is used for achieving heat exchange between the refrigerating medium (A) which passes through the evaporation area (1) and thermal fluid (C) which passes through a condenser. The evaporation area (1) is separated from the overheated area (2) through a flow guiding plate (3), a flow guiding concave groove (31) which is used for guiding the refrigerating medium (A) which is heated in the evaporation area (1) to the overheated area (2) is formed in the flow guiding plate (3), and the sectional area of the flow guiding concave groove (31) is approximate to the open area of flow guiding connectors (32) which are arranged at two ends of the flow guiding concave groove (31). By means of the plate-type evaporator, the problems that an existing evaporator is large in occupied space and low in heat exchanging efficiency are solved.
Description
Technical field
The utility model belongs to the design and manufacturing technology field of heat exchanger, particularly a kind of plate-type evaporator.
Background technology
At present, high buildings and large mansions in the city, Hotel's Executive building is more and more, as everyone knows, in order to bring pleasant environment for people in public building, most large public buildings have all been equipped central air-conditioning, central air-conditioning can be controlled room temperature within certain temperature range, make people that the four seasons be arranged in building the sensation that spring has set in.Evaporimeter is as the vitals of central air-conditioning, and it utilizes under low pressure evaporable characteristics of liquid low-temperature refrigerant, will change through the refrigerant that the throttling downstream pressure reduces steam into and also absorb the heat of the medium that is cooled, and reaches the refrigeration purpose.
What the evaporimeter of the central air-conditioning that market is common adopted basically is pipe heat exchanger, and cold-producing medium carries out heat exchange by the heat exchanger tube that is arranged in outer cover of heat exchanger with extraneous water, and cold-producing medium changes steam into and absorbs the heat of the medium that is cooled, and reaches the refrigeration purpose.For the evaporation efficiency that makes evaporimeter is further improved, liquid outlet end at tubular evaparator, generally also be provided with superheater tube, guarantee further cooling from the evaporimeter fluid, but in this kind method, the thermal source of superheater tube is the cooling water that enters from the external world, is subjected to the restriction (12 ℃ of left and right of water temperature) of thermal source, the degree of superheat of this evaporimeter is relatively low, and heat exchange efficiency is also relatively low.Because can only being communicated with the cooling water of GB requirement, this superheater tube can not be communicated with other coolant medias; Therefore, as new technological trend, in the middle of the application of tubular evaparator, set up at the fluid pipeline section of evaporimeter and be equipped with board-like subcooler, utilize the heat exchange between the refrigerant before board-like subcooler is realized refrigerant and throttling, further improve the degree of superheat of evaporimeter, so just can improve simultaneously whole unit refrigerating capacity.But the structure of this split type evaporimeter is very complicated, and parts are various, and trouble is installed, and overall volume is larger, takes up room also larger, makes the floor space of whole central air-conditioning larger.
Complicated for solving evaporation structure, the problem that dutycycle is higher, U.S. patent documents US2010/0065262Al discloses a kind of plate type heat exchanger, and it can be used as evaporimeter and uses.The heat exchanger structure of its relative tubular type is simple, and floor space is little; But it does not make the superheater that further gasifies through the refrigerant after evaporimeter, and therefore, the thermal effect excessively of this evaporimeter can not meet the demands, and compressor has the risk that is subject to liquid hammer.And in prior art, it is also the split-type structural that connects by pipeline that this board-like evaporimeter installs superheater additional.Its floor space still can not satisfy the requirement of compact central air conditioner system.
Chinese patent file CN2604667Y discloses a kind of preheating, sterilization, cooling plate type heat exchanger of integrating.For solve sterilization and quick cooling employing two cover autonomous devices in prior art move simultaneously the using energy source of existence insufficient, waste water and problem that equipment investment is large.This heat exchanger is that the multi-disc plate type heat exchanger is closely connected, set up flow deflector in the centre and formed waste heat exchange area and high-temperature sterilization district, it is by pre-backing 1, sterilization sheet 4, fin 2, flow deflector 3 and high-temperature heating sheet 5 form, cold liquid is through preheating and sterilization, flows out emit heat in fin after, and high-temperature medium can be with hot water or superheated vapor, emit heat in heating plate, can fully exchange because they connect tight heat.But the interior shape of the deflector 3 in this plate type heat exchanger is parallelogram, can cause rate of flow of fluid too small during fluid process deflector 3, finally causes heat exchange efficiency lower, can not satisfy the requirement of the evaporimeter heat exchanging efficient in central air-conditioning.
The utility model content
For this reason, technical problem to be solved in the utility model is the problem that existing evaporimeter takes up room greatly, heat exchange efficiency is low, and then provides a kind of dutycycle little, the evaporimeter that heat exchange efficiency is high.
For solving the problems of the technologies described above, plate-type evaporator of the present utility model, it comprises evaporating area, described evaporating area closely is formed by connecting by a plurality of evaporation and heat-exchange sheets, is used for realizing the heat exchange of refrigerant and freezing liquid; The overheated zone, described overheated zone closely is formed by connecting by a plurality of overheated heat exchanger fins, for the heat exchange that realizes through the hot fluid after the refrigerant after described evaporating area and process condenser; Described evaporating area and described overheated zone are by a deflector isolation, described deflector is provided with for the described refrigerant after described evaporating area heating being guided to the diversion groove of described overheated zone, and the area of passage of the water conservancy diversion interface at the sectional area of described diversion groove and two ends about equally.
That is to say, the sectional area of described diversion groove can be selected to be set to equate fully with the area of passage of the water conservancy diversion interface at two ends, also can be slightly larger than or be slightly less than the area of passage of the water conservancy diversion interface at two ends.The sectional area that its scope definition that is slightly larger than or is slightly less than is described diversion groove is compared to differ up and down with the area of passage of the water conservancy diversion interface at two ends and is no more than 10%, preferably is no more than 5%.
In above-mentioned plate-type evaporator, described diversion groove is shaped to streamlined.
In above-mentioned plate-type evaporator, form pod apertures and a plurality of regularly arranged heat exchange groove for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet and described overheated heat exchanger fin.
In above-mentioned plate-type evaporator, described heat exchange groove is herringbone, and the described heat exchange groove on adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.
In above-mentioned plate-type evaporator, described pod apertures place's employing seal gasket of adjacent described evaporation and heat-exchange sheet and described overheated heat exchanger fin is connected and sealed.
In above-mentioned plate-type evaporator, the two ends of described evaporimeter arrange the heat exchange end cap.
In above-mentioned plate-type evaporator, be welded to connect between described heat exchange end cap, described evaporation and heat-exchange sheet, described deflector, described overheated heat exchanger fin.
In above-mentioned plate-type evaporator, described hot fluid directly is circulated in described evaporating area through the described refrigerant that forms low-temp low-pressure after the choke valve throttling behind the overheated zone again and carries out heat exchange with described freezing liquid.
In above-mentioned plate-type evaporator, form on described overheated heat exchanger fin and described deflector for described refrigerant being guided to the refrigerant pod apertures of described evaporating area, between adjacent described refrigerant pod apertures, seal washer is set, is used for the described heat exchange groove of described refrigerant pod apertures and described overheated heat exchanger fin is isolated.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) evaporimeter of the present utility model adopts the plate-type heat-exchange sheet to realize heat exchange, and it has increased an overheated zone, overheated zone and evaporating area separate by a deflector, and the compact conformation of whole evaporimeter is lower with respect to existing split type evaporimeter floor space; Simultaneously, the sectional area of the diversion groove that deflector of the present utility model is offered equates with the sectional area of two end interfaces, makes the flow velocity of refrigerant stable in air deflector, and heat exchange efficiency improves greatly.
(2) offer a plurality of regularly arranged heat exchange grooves on heat exchanger plates of the present utility model and be used for flowing of heat transferring medium, this heat exchange groove is herringbone, with respect to the existing heat exchange plate that the heat exchange groove is not set, between heat exchanger plates of the present utility model, heat exchange area increases, and heat exchange efficiency further improves.
(3) hot fluid of the present utility model is through the fluid after condenser, can also realize throttling after the throttling heat exchange in the overheated zone before refrigerant excessively cold, increase the refrigerating capacity of unit; And above-mentioned all functions are integrated, and are easy to process, are convenient to install.
Description of drawings
For content of the present utility model is more likely to be clearly understood, the below is described in further detail the utility model, wherein according to specific embodiment of the utility model also by reference to the accompanying drawings
Fig. 1 is the structural representation of plate-type evaporator of the present utility model;
Fig. 2 is the stereogram of deflector.
In figure, Reference numeral is expressed as:
The 1-evaporating area, 11-evaporation and heat-exchange sheet, 2-overheated zone, the overheated heat exchanger fin of 21-, 112-pod apertures, 121-heat exchange groove, 211-refrigerant pod apertures, 3-deflector, 31-diversion groove, 32-water conservancy diversion interface, 4-heat exchange end cap, A-refrigerant, B-freezing liquid, C-cryogenic freezing liquid.
The specific embodiment
Below with reference to accompanying drawing, use following examples that the utility model is further set forth.
Fig. 1, Fig. 2 are board-like cool condenser of the present utility model.This plate-type evaporator comprises evaporating area 1, and described evaporating area 1 closely is formed by connecting by a plurality of evaporation and heat-exchange sheets 11, is used for realizing the heat exchange of refrigerant A and freezing liquid B; Overheated zone 2, described overheated zone 2 closely is formed by connecting by a plurality of overheated heat exchanger fins 21, for the heat exchange that realizes through the hot fluid C after the refrigerant A after described evaporating area 1 and process condenser; Described evaporating area 1 is isolated by a deflector 3 with described overheated zone 2, described deflector 3 is provided with for the described refrigerant A after described evaporating area 1 heating being guided to the diversion groove 31 of described overheated zone 2, the sectional area of described diversion groove 31 equates with the area of passage of the water conservancy diversion interface 32 at two ends, make the flow velocity of refrigerant stable in air deflector, heat exchange efficiency improves greatly.
In the present embodiment, described refrigerant A is freon, and described cryogenic freezing liquid C is through the hot fluid after condenser.Described hot fluid C forms the described refrigerant A of low-temp low-pressure after passing through choke valve 5 throttlings again behind the overheated zone, described refrigerant A directly is circulated in described evaporating area 1 and carries out heat exchange with described freezing liquid B.Wherein, described freezing liquid B is the associated medias such as water or salt solution.
Form pod apertures 112 and a plurality of regularly arranged heat exchange groove 121 for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet 11 and described overheated heat exchanger fin 21.Described heat exchange groove 121 is herringbone, and the described heat exchange groove 121 on adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.The heat exchange area of this heat exchanger plates is large, and heat exchange efficiency further improves.
Adjacent described evaporation and heat-exchange sheet 11 and the described pod apertures of described overheated heat exchanger fin 21 112 places employing seal gasket are connected and sealed.
The two ends of described evaporimeter arrange heat exchange end cap 4, are welded to connect between described heat exchange end cap 4, described evaporation and heat-exchange sheet 11, described deflector 3, described overheated heat exchanger fin 21.
Form on described overheated heat exchanger fin 21 and described deflector 3 for described refrigerant A being guided to the refrigerant pod apertures 211 of described evaporating area 1, between adjacent described refrigerant pod apertures 211, seal washer is set, is used for described refrigerant pod apertures 211 isolated with the described heat exchange groove 121 of described overheated heat exchanger fin 21.
The course of work of this plate-type evaporator is as follows:
As shown in Figure 1, freezing liquid B enters on the described evaporation and heat-exchange sheet 11 of interval setting through heat exchange end cap 4, flow in the heat exchanger channels of described heat exchange groove 121 formation, after the heat exchange of described hot fluid C through the overheated zone after condenser, 5 throttlings of process choke valve form the described refrigerant A of low-temp low-pressures again, described refrigerant A directly enters on evaporimeter heat exchanger fin 11 adjacent with described freezing liquid B in described evaporating area 1 by described refrigerant pod apertures 211, carries out heat exchange with described freezing liquid B; Described refrigerant A through evaporating area 1 heat exchange after, then enter to described overheated zone 2 through the described water conservancy diversion interface 32 of described deflector 3, and carry out heat exchange by the described hot fluid C after condenser, discharge the described refrigerant A of gaseous state finally by outlet.
In other embodiments, described diversion groove 31 is shaped to streamlined, its sectional area is set to be slightly larger than or to be slightly less than the area of passage of the water conservancy diversion interface 32 at two ends, the scope definition that is slightly larger than or is slightly less than is that the sectional area of described diversion groove is compared to differ up and down with the area of passage of the water conservancy diversion interface at two ends and is no more than 10%, preferably is no more than 5%.
Obviously, above-described embodiment is only for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still are among the protection domain of the invention.
Claims (9)
1. plate-type evaporator, it comprises
Evaporating area (1), described evaporating area (1) closely is formed by connecting by a plurality of evaporation and heat-exchange sheets (11), is used for realizing the heat exchange of refrigerant (A) and freezing liquid (B);
Overheated zone (2), described overheated zone (2) closely are formed by connecting by a plurality of overheated heat exchanger fins (21), for the heat exchange that realizes through the hot fluid (C) after the refrigerant (A) after described evaporating area (1) and process condenser; It is characterized in that:
Described evaporating area (1) is isolated by a deflector (3) with described overheated zone (2), described deflector (3) is provided with for the described refrigerant (A) after described evaporating area (1) heating being guided to the diversion groove (31) of described overheated zone (2), and the area of passage of the water conservancy diversion interface (32) at the sectional area of described diversion groove (31) and two ends about equally.
2. plate-type evaporator according to claim 1 is characterized in that:
The sectional area of described diversion groove (31) is set to equate fully or compares to differ up and down be no more than 10% with the area of passage of the water conservancy diversion interface (32) at two ends.
3. plate-type evaporator according to claim 1 and 2 is characterized in that:
Form pod apertures (112) and a plurality of regularly arranged heat exchange groove (121) for the conducting heat transferring medium on the plate face of described evaporation and heat-exchange sheet (11) and described overheated heat exchanger fin (21).
4. plate-type evaporator according to claim 3 is characterized in that:
Described heat exchange groove (121) is herringbone, and the described heat exchange groove (121) on adjacent heat exchanger fin is positive herringbone and the setting of falling the herringbone.
5. plate-type evaporator according to claim 1 and 2 is characterized in that:
Adjacent described evaporation and heat-exchange sheet (11) and the described pod apertures (112) of described overheated heat exchanger fin (21) locate to adopt seal gasket to be connected and sealed.
6. plate-type evaporator according to claim 1 and 2 is characterized in that:
The two ends of described evaporimeter arrange heat exchange end cap (4).
7. plate-type evaporator according to claim 6 is characterized in that:
Be welded to connect between described heat exchange end cap (4), described evaporation and heat-exchange sheet (11), described deflector (3), described overheated heat exchanger fin (21).
8. plate-type evaporator according to claim 1 and 2 is characterized in that:
Described hot fluid (C) passes through the described refrigerant (A) that forms low-temp low-pressure after choke valve (5) throttling again and directly is circulated to described evaporating area (1) in and described freezing liquid (B) carries out heat exchange after described overheated zone (2).
9. plate-type evaporator according to claim 8 is characterized in that:
Form on described overheated heat exchanger fin (21) and described deflector (3) for described refrigerant (A) being guided to the refrigerant pod apertures (211) of described evaporating area (1), between adjacent described refrigerant pod apertures (211), seal washer is set, is used for described refrigerant pod apertures (211) isolated with the described heat exchange groove (121) of described overheated heat exchanger fin (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709255 CN203024504U (en) | 2012-08-14 | 2012-12-20 | Plate-type evaporator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220401635.9 | 2012-08-14 | ||
| CN201220401635 | 2012-08-14 | ||
| CN 201220709255 CN203024504U (en) | 2012-08-14 | 2012-12-20 | Plate-type evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024504U true CN203024504U (en) | 2013-06-26 |
Family
ID=48218128
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649317 Expired - Fee Related CN202928175U (en) | 2012-08-14 | 2012-11-30 | Air conditioning system |
| CN 201220709255 Withdrawn - After Issue CN203024504U (en) | 2012-08-14 | 2012-12-20 | Plate-type evaporator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649317 Expired - Fee Related CN202928175U (en) | 2012-08-14 | 2012-11-30 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202928175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017419A (en) * | 2012-08-14 | 2013-04-03 | 苏州必信空调有限公司 | Plate type evaporator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332285B (en) * | 2017-12-29 | 2019-12-06 | 青岛海尔空调器有限总公司 | Air conditioner system |
-
2012
- 2012-11-30 CN CN 201220649317 patent/CN202928175U/en not_active Expired - Fee Related
- 2012-12-20 CN CN 201220709255 patent/CN203024504U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017419A (en) * | 2012-08-14 | 2013-04-03 | 苏州必信空调有限公司 | Plate type evaporator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202928175U (en) | 2013-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20150422 |