KR102036108B1 - Absorber and Absorption type cooling/heating device including the same - Google Patents

Abstract

The present invention relates to an absorber and an absorbent air conditioner including the same, wherein the absorber according to the present invention is a distribution unit for supplying an absorbent liquid, a plurality of heat exchange plates through which the supplied absorbent liquid flows along the surface, and a vapor refrigerant between the plurality of heat exchange plates. It includes a steam supply unit for supplying, wherein the surface of the heat exchange plate through which the absorption liquid flows is provided with a bubble generating unit having a predetermined roughness. According to the present invention, as the bubbles of the absorbing liquid flowing by the bubble generating unit are induced to increase the contact area with the vapor refrigerant, the dissolution rate of the vapor refrigerant can be increased.

Description

Absorber and Absorption type cooling / heating device including the same}

The present invention relates to an absorber of an absorption type air conditioner capable of increasing the dissolution rate of a vapor refrigerant into an absorption liquid.

Absorption type air conditioner performs a cycle of absorbing, regenerating, condensing, and evaporating refrigerant by using an absorption liquid (for example, lithium bromide (LiBr) solution) as a heat source using a gas or fuel such as LPG or LNG, and in the process It is a device used for cooling and heating through heat exchange with cooling water circulating (for example, indoor unit).
Absorption air conditioners are distinguished in that they use absorbers and regenerators instead of compressors as compared to steam compression air conditioners. The compressor of a vapor compression air conditioner receives electric energy to compress the refrigerant to high temperature and high pressure, but the absorption air conditioner supplies the refrigerant-absorbent mixture (low concentration absorbent liquid) generated in the absorber to the high temperature and high pressure state by supplying thermal energy from the regenerator. Absorption air conditioners are used in large commercial or industrial facilities where inexpensive heat sources are available.
On the other hand, the dissolution rate of the vapor refrigerant into the absorbent liquid is an important factor in determining the cooling and heating performance of the absorption type air conditioner. As in Japanese Patent Publication No. 3292663 (June 17, 2002), the development of the dissolution rate of the vapor refrigerant into the absorbent liquid is not limited to the present but has continued from the past. This is because, when the dissolution rate of the steam refrigerant is low, the amount of refrigerant circulating in the absorption air conditioner is reduced, so that the heat exchange capacity with the cooling water is reduced.
Therefore, there is a great demand for an absorber capable of increasing the dissolution rate of the vapor refrigerant into the absorbent liquid in order to improve air conditioning performance.

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The present invention was devised to solve the above-mentioned conventional problems, and an object of the present invention is to provide an absorber capable of increasing the dissolution rate of the vapor refrigerant into the absorbent liquid.

Absorber of the absorption type air conditioner according to an embodiment of the present invention to achieve the above object is a distribution unit for supplying the absorbent liquid, the supplied absorbent liquid flows along the surface, a plurality of heat exchanger plates are installed spaced apart from each other and the plurality And a steam supply unit supplying a vapor refrigerant between the two heat exchange plates, and generating bubbles having a predetermined roughness on the surface of the heat exchange plate through which the absorbent liquid flows so that the contact area between the absorbent liquid and the vapor refrigerant increases. An additional feature is provided.

Here, in the present invention, the bubble generating unit is provided with a plurality of regions protruding or recessed from the surface of the heat exchange plate, the bubble is caused by the collision with the plurality of regions when the absorbent liquid flows along the surface of the bubble generating unit It is characterized by.

In addition, the present invention is characterized in that the bubble generating unit comprises a plurality of grooves provided on the surface of the heat exchange plate.

In addition, the present invention is characterized in that the plurality of grooves are provided extending in a diagonal direction on the surface of the heat exchange plate.

In addition, the present invention is characterized in that the bubble generating unit comprises a plurality of protrusions protruding to the surface of the heat exchange plate.

In addition, the present invention is characterized in that the absorbent liquid is bubbled by the surface resistance of the bubble generating unit when the bubble generating unit flows, thereby increasing the surface area.

In addition, the present invention is a cooling water flows in the plurality of heat exchange plate, the distribution unit is provided on the plurality of heat exchange plate, a plurality of absorption liquid flow path for discharging the absorption liquid to the surface of each of the plurality of heat exchange plate And the absorbent liquid discharged from the absorbent liquid flow path is heat-exchanged with the cooling water while flowing from the upper side to the lower side along the surface of the heat exchange plate.

In addition, the present invention is characterized in that the plurality of heat exchange plates are installed to be inclined.

In addition, the present invention is characterized in that the bubble generating portion is provided on a portion of the surface of the heat exchange plate.

In addition, the present invention is characterized in that the roughness (R) of the bubble generating unit is in the range of 0.025 mm ≤ R ≤ 0.5 mm.

Absorption type air conditioner according to an embodiment of the present invention is an evaporator, an absorber for absorbing the vapor refrigerant flowing from the evaporator in a high concentration absorbent liquid to produce a low concentration absorbent liquid, by heating the low concentration absorbent liquid introduced from the absorber to the steam refrigerant and medium concentration absorbent liquid And a low temperature regenerator for heat-exchanging the medium absorbent liquid separated from the high temperature regenerator and the vapor refrigerant, wherein the absorber includes a plurality of heat exchange plates through which the high concentration absorbent liquid flows along a surface thereof. The surface of the plurality of heat exchange plate is characterized in that the bubble generating unit having a predetermined roughness so that the contact area between the high concentration absorbent liquid and the vapor refrigerant introduced from the evaporator is increased.

Here, the present invention is characterized in that the bubble generating unit comprises a plurality of grooves provided on the surface of the heat exchange plate.

In addition, the present invention is characterized in that the plurality of grooves are provided extending in a diagonal direction on the surface of the heat exchange plate.

In addition, the present invention is characterized in that the bubble generating unit comprises a plurality of protrusions protruding to the surface of the heat exchange plate.

In addition, the present invention is characterized in that the high concentration absorbent liquid is bubbled by the surface resistance of the bubble generating unit when the bubble generating unit flows, the surface area is increased.

In addition, the present invention is characterized in that the absorber comprises a distribution unit for supplying the high concentration absorbent liquid to the surfaces of the plurality of heat exchange plates, respectively, and a steam supply unit for supplying the vapor refrigerant of the evaporator between the plurality of heat exchange plates. do.

In addition, the present invention is characterized in that the absorber and the evaporator is disposed in one shell.

In another aspect, the present invention is provided with a side wall partitioning into two spaces in which the evaporator and the absorber are respectively installed, wherein the steam supply unit is provided on the side wall to selectively pass only the vapor refrigerant inside the evaporator. And a plurality of heat exchanger plates are provided on one side of the steam supply unit, and the distribution unit is provided on the plurality of heat exchanger plates, and a plurality of absorption liquid flow paths for discharging the absorbent liquid to the surface of the plurality of heat exchanger plates. Characterized in that it comprises a.

In addition, the present invention is characterized in that the plurality of heat exchange plates are installed to be inclined.

In addition, the present invention is characterized in that the roughness (R) of the bubble generating unit is in the range of 0.025 mm ≤ R ≤ 0.5 mm.

According to the present invention, by the bubble generating unit having a predetermined roughness provided on the surface of the heat exchange plate, bubbles of the absorbing liquid flowing on the surface are induced to increase the dissolution rate of the vapor refrigerant as the contact area with the vapor refrigerant is increased. .

In addition, according to the present invention, the heat exchange plate is inclined so that the amount of absorbent liquid flowing along the surface of the heat exchange plate is increased, thereby facilitating foam generation of the absorbent liquid.

1 is a system diagram of an absorption type air conditioner according to an embodiment of the present invention.
2 is a schematic view showing an absorber according to an embodiment of the present invention.
3 is a perspective view of a plurality of heat exchange plates according to an embodiment of the present invention.
Figure 4 is an absorbent liquid bubbles generated on the surface of the bubble generating unit according to an embodiment of the present invention.
5A is a cross-sectional view of a heat exchange plate including a plurality of grooves according to an embodiment of the present invention, and FIG. 5B is a plan view of a heat exchange plate including a plurality of grooves.
6 (a) is a cross-sectional view of a heat exchange plate including a plurality of protrusions according to an embodiment of the present invention, and FIG. 6 (b) is a plan view of a heat exchange plate including a plurality of protrusions.
7 is a plan view of a heat exchange plate provided with a bubble generator in a portion of the surface according to an embodiment of the present invention.
8 is a cross-sectional view of an inclined heat exchange plate according to an embodiment of the present invention.

Hereinafter, an absorber according to an embodiment of the present invention and an absorption type air conditioner including the same will be described in detail with reference to the accompanying drawings. The accompanying drawings show exemplary forms of the present invention, which are provided to explain the present invention in more detail, and the technical scope of the present invention is not limited thereto.

In addition, irrespective of the reference numerals, the same or corresponding components will be given the same reference numerals, and redundant description thereof will be omitted. have.

1 is a system diagram of an absorption type air conditioner according to an embodiment of the present invention.

Absorption type air conditioner of the present invention may include an indoor unit 100, outdoor unit 200, evaporator 300, condenser 700, high temperature regenerator 500, low temperature regenerator 600 and absorber 400. Hereinafter, with reference to Figure 1 will be described in detail for each configuration of the absorption type air conditioner. Hereinafter, the high concentration absorbent liquid, the medium concentration absorbent liquid and the low concentration absorbent liquid are classified according to the concentration of the absorbent liquid in the mixed liquid of the absorbent liquid and the refrigerant. That is, the concentration of the absorbent liquid in the mixed solution is high in the order of the high concentration absorbent liquid, the medium concentration absorbent liquid, and the low concentration absorbent liquid.

First, the indoor unit 100 cools or heats an air conditioning space by heat-exchanging coolant and air in the air conditioning space. The indoor unit 100 is provided with a coolant heat transfer pipe 101 through which coolant flows. The cooling water heat pipe 101 is connected to the cooling water heat pipe 301 inside the evaporator 300, and the coolant heat exchanged with the liquid refrigerant in the evaporator 300 is introduced. On the other hand, the coolant heat pipe 101 of the indoor unit 100 forms a closed circulation coolant flow path together with the coolant heat pipe 301 inside the evaporator 300.

Next, the outdoor unit 200 (not shown) heat-exchanges the cooling water with the outdoor air. A coolant inlet tube 201 is provided inside the outdoor unit 200, and the coolant in which the heat exchanger exchanges with the steam refrigerant in the condenser 700 is introduced into the coolant inlet tube 201. Therefore, heat exchange occurs due to a temperature difference between the outdoor air introduced into the outdoor unit 200 and the cooling water of the cooling water inlet pipe.

Meanwhile, the inlet side of the coolant inlet pipe 201 of the outdoor unit 200 is connected to the coolant heat pipe 701 inside the condenser 700, and the outlet side of the coolant inlet pipe 201 is a coolant heat pipe inside the absorber 400. 401 is connected. That is, the cooling water circulates inside the absorption type air conditioner along the closed circulation path formed by the cooling water heat pipe 701 of the condenser 700, the cooling water inlet pipe 201 of the outdoor unit 200, and the cooling water heat pipe 401 of the absorber 400. .

Next, the evaporator 300 heat exchanges the cooling water and the liquid refrigerant. The evaporator 300 is connected to the condenser 700 and the liquid refrigerant pipe 703 so that the liquid refrigerant of the condenser 700 flows into the evaporator 300. The heat exchange between the coolant of the outdoor unit 200 introduced into the coolant heat transfer pipe 301 of the evaporator 300 and the liquid refrigerant occurs to change the liquid refrigerant into a vapor refrigerant. On the other hand, the liquid refrigerant accumulated in the bottom of the evaporator 300 is dispersed in the upper part of the evaporator 300 again through the refrigerant circulation pipe 303, and evaporation continues to be induced.

Next, the absorber 400 dissolves the vapor refrigerant introduced from the evaporator 300 in the high concentration absorbent liquid introduced from the low temperature regenerator 600. The absorber 400 may be connected to the absorber 400 through the low temperature regenerator 600 and the high concentration absorbent liquid tube 605, and may be supplied with the high concentration absorbent liquid separated from the low temperature regenerator 600. Dissolution occurs by contact between the vapor refrigerant supplied from the evaporator 300 and the high concentration absorbent liquid in the absorber 400. That is, the low concentration absorbent liquid is produced by dissolving the vapor refrigerant in the high concentration absorbent liquid.

In addition, a coolant heat transfer pipe 401 is provided inside the absorber 400 to allow the coolant of the outdoor unit 200 to flow therein. The cooling water cools the low concentration absorbent liquid to promote dissolution of the low concentration absorbent liquid-vapor refrigerant.

Meanwhile, the inlet side of the coolant heat transfer tube 401 of the absorber 400 is connected to the coolant inlet pipe 201 of the outdoor unit 200, and the outlet side of the coolant heat transfer tube 401 is connected to the coolant heat transfer tube 701 of the condenser 700. do. Therefore, the coolant of the outdoor unit 200 may flow into the absorber 400 and heat exchange, and then may flow back into the condenser 700.

Next, the high temperature regenerator 500 supplies thermal energy to separate the low concentration absorbent liquid of the absorber 400 into the medium concentration absorbent liquid and the vapor refrigerant. The low concentration absorbent liquid pipe 403 is connected to the high temperature regenerator 500 so that the low concentration absorbent liquid of the absorber 400 may be introduced. In addition, the high temperature regenerator 500 includes a steam refrigerant pipe 501 which is a flow path through which steam refrigerant separated therein is discharged to the low temperature regenerator 600, and a medium concentration absorbing liquid which is a flow path through which the medium concentration absorbing liquid is discharged to the low temperature regenerator 600. The pipes 503 are each connected.

The external heat source 505 that supplies thermal energy to the high temperature regenerator 500 may be a burner that uses LPG or LNG as fuel.

On the other hand, the exhaust gas heat exchanger 507 may be provided on the flow path of the low concentration absorbing liquid pipe 403. Combustion gas discharged from the external heat source 505 may be introduced into the exhaust gas heat exchanger 507 to preferentially heat exchange the low concentration absorbent liquid introduced into the high temperature regenerator 500. By using the waste heat of the combustion gas through the exhaust gas heat exchanger (507) there is an advantage that can reduce the fuel consumption of the external heat source.

Next, the low temperature regenerator 600 separates the medium absorbent liquid into a high concentration absorbent liquid and a vapor refrigerant using the thermal energy of the vapor refrigerant separated from the high temperature regenerator 500. That is, the low temperature regenerator 600 exchanges heat between the medium concentration absorbent liquid separated from the high temperature regenerator 500 and the vapor refrigerant. The low temperature regenerator 600 may be connected to the medium absorbent liquid pipe 503 so that the medium absorbent liquid of the high temperature regenerator 500 may be supplied. In addition, the low temperature regenerator 600 is provided with a refrigerant heat transfer pipe 601, and the refrigerant heat transfer pipe 601 is connected to the steam refrigerant pipe 501 of the high temperature regenerator 500 and is separated from the high temperature regenerator 500. Can be introduced.

Meanwhile, the steam refrigerant separated from the low temperature regenerator 600 may flow into the condenser 700. In addition, the refrigerant heat exchanger tube 601 inside the low temperature regenerator 600 is connected through the condenser 700 and the steam refrigerant tube 603 to separate the steam refrigerant separated from the low temperature regenerator 600 and the high temperature regenerator 500. The vapor refrigerant is combined. In addition, the low temperature regenerator 600 is connected to the absorber 400 through the high concentration absorbent liquid pipe 605 and the high concentration absorbent liquid is supplied to the absorber 400.

Next, in the condenser 700, heat exchange occurs between the steam refrigerant introduced from the low temperature regenerator 600 and the cooling water. The coolant heat pipe 701 is provided in the condenser 700, and the coolant heat pipe 701 is connected to the coolant heat pipe 401 and the coolant pipe 403 of the absorber 400. Thus, the coolant heat exchanged in the absorber 400 may be introduced into the condenser 700. The vapor refrigerant of the condenser 700 is condensed into the liquid refrigerant by heat exchange with the cooling water. The condenser 700 may be connected to the evaporator 300 through the liquid refrigerant pipe 703 so that the liquid refrigerant therein may be introduced into the evaporator 300.

In addition, the present invention is a low temperature solution heat exchanger 405 for heat-exchanging the low concentration absorbent liquid generated in the absorber 400 and the high concentration absorbent liquid separated from the low temperature regenerator 600, and the low concentration absorbent liquid and the high temperature regenerator produced in the absorber 400 ( A high temperature solution heat exchanger 407 for heat-exchanging the medium absorbent liquid separated in 500 may be further included.

Lithium bromide (LiBr) is used as the absorption liquid of the absorption type air conditioner of the present invention, and the refrigerant may be water.

2 is a schematic view showing an absorber according to an embodiment of the present invention. Hereinafter, with reference to the drawings looks at in detail with respect to the absorber 400 that can increase the dissolution rate of the vapor refrigerant of the present invention into the absorbent liquid.

Absorber 400 of the present invention is a distribution unit for supplying the absorbent liquid 410, a plurality of heat exchange plate 420, the supplied absorbent liquid flows along the surface, and a plurality of heat exchange plate 420 to supply the steam refrigerant A steam supply unit 430.

Here, the distribution unit 410 is provided on the upper portion of the plurality of heat exchange plate (420). The distribution unit 410 includes a plurality of absorbent liquid flow passages 411 for discharging the absorbent liquid to the surfaces of each of the plurality of heat exchange plates 420. The absorbent liquid passage 411 is provided to correspond to the plurality of heat exchange plates 420, respectively, and discharges the absorbent liquid to the upper surface of the heat exchange plate 420.

On the other hand, the absorbent liquid discharged from the distribution unit 410 is a high concentration absorbent liquid in which the refrigerant is not dissolved, the high density absorbent liquid pipe 605 is connected to the distribution unit 410 to receive the high concentration absorbent liquid separated from the low temperature regenerator 600.

The steam supply unit 430 receives steam refrigerant from the evaporator 300 and supplies the steam refrigerant into the absorber 400. In an embodiment, the steam supply unit 430 may be disposed at one side of the plurality of heat exchange plates 420 to supply steam refrigerant to the side surfaces of the plurality of heat exchange plates 420.

The plurality of heat exchange plates 420 exchange heat with the coolant introduced from the outdoor unit 200 and the high concentration absorbent liquid. Cooling water heat pipes 401 are connected to the plurality of heat exchange plates 420 to allow the cooling water of the outdoor unit 200 to flow therein. That is, the heat exchange plate 420 cools the high concentration absorbent liquid using the cooling water, because dissolution of the vapor refrigerant into the high concentration absorbent liquid occurs at a lower temperature.

On the other hand, the high concentration absorbing liquid supplied from the distribution unit 410 along the surfaces of the plurality of heat exchange plate 420 flows from the top to the bottom, it may be heat exchanged with the cooling water by heat conduction through the heat exchange plate 420.

As shown in FIG. 3, a high concentration absorbent liquid is supplied to the upper portion of the plurality of heat exchange plates 420, and a vapor refrigerant is supplied to the side surface. The vapor refrigerant may be supplied between the plurality of heat exchange plates 420 and may be dissolved in contact with a high concentration absorbent liquid flowing along the surface of the heat exchange plate 420. As the high concentration absorbent flows downward along the surface of the heat exchange plate 420, the vapor refrigerant dissolves and the low concentration absorbent is collected under the absorber 400.

According to the present invention, a bubble generator 421 having a predetermined roughness is provided on a surface on which the high concentration absorbent liquid of the heat exchange plate 420 flows. When the high concentration absorbent liquid flows through the bubble generator 421 on the surface of the heat exchange plate 420, the surface area increases as bubbles are generated by the surface resistance of the bubble generator 421.

Here, the bubble is a bubble of the high concentration absorbent liquid, and as shown in FIG. 4, a gas is dispersed in the high concentration absorbent liquid and is present on the surface of the bubble generator 421.

Accordingly, the present invention can increase the dissolution rate of the vapor refrigerant because the high concentration absorbent liquid is in a foam state and the contact area with the vapor refrigerant is increased. Since the increase in the dissolution rate of the steam refrigerant means an increase in the amount of refrigerant circulating in the absorption air conditioner, the heat capacity of the refrigerant that is heat-exchanged with the cooling water in the indoor unit 100 may be increased, thereby improving the cooling and heating performance of the absorption air conditioner as a whole.

At this time, the bubble generator 421 is provided to have a roughness (R) of a predetermined value or more. In one embodiment, the roughness R of the bubble generator 421 may range from 0.025 mm ≦ R ≦ 0.5 mm. It is possible to cause bubbles of the absorbent liquid without significantly lowering the absorbent liquid flow rate in the roughness range.

The bubble generator 421 is provided with a plurality of regions protruding or recessed from the surface of the heat exchange plate 420. That is, the bubble generating unit 421 may be provided with a protruding or recessed area that hinders the flow of the absorbent liquid, and may have a predetermined roughness value. When the absorbent liquid flows along the surface of the bubble generator 421, bubbles are generated by collision with a plurality of regions protruded or recessed.

As illustrated in FIGS. 5A and 5B, the bubble generator 421 of the present invention may include a plurality of grooves 423 provided on the surface of the heat exchange plate 420. Since a step is provided at the boundary with the groove 423 on the surface of the heat exchange plate 420, the surface of the heat exchange plate 420 has a predetermined roughness. The high concentration absorbing liquid may hit the step while flowing the plurality of grooves 423 on the surface of the bubble generating unit 421 to cause bubbles.

At this time, as shown in Figure 5 (b), a plurality of grooves 423 may be provided extending in a diagonal direction on the surface of the heat exchange plate 420. When the high concentration absorbent liquid flows from the top to the bottom along the surface of the heat exchange plate 420, the high absorption liquid flows along the plurality of grooves 423 extending in a diagonal direction, and thus the moving speed of the absorbent liquid may be increased. Accordingly, the bubble generator 421 may increase the dissolution rate of the vapor refrigerant by preventing the flow rate of the high concentration absorbent liquid from being inhibited while generating the high concentration absorbent liquid bubbles.

Alternatively, as illustrated in FIGS. 6A and 6B, the bubble generator 421 may include a plurality of protrusions 425 protruding from the surface of the heat exchange plate 420. A plurality of protrusions 425 are formed in a lattice shape on the surface of the heat exchange plate 420, so that the surface of the heat exchange plate 420 has a predetermined roughness. The high concentration absorbent liquid flowing along the bubble generator 421 may hit the protrusion 425 to cause bubbles.

As shown in FIG. 7, the bubble generator 421 of the present invention may be provided on a part of the surface of the heat exchange plate 420. The surface of the heat exchange plate 420 may be divided into a plurality of first regions in which the bubble generator 421 is provided and a second region except the first region. Alternatively, the bubble generator 421 may be provided on the entire surface of the heat exchange plate 420. According to the area occupied by the bubble generator 421 on the surface of the heat exchange plate 420, the bubble generation degree and the flow rate of the high concentration absorbent liquid may be adjusted.

As shown in FIG. 8, the plurality of heat exchange plates 420 may be installed to be inclined. When the heat exchange plate 420 is installed vertically, some of the high concentration absorbent liquid discharged from the upper distribution unit 410 may fall directly to the bottom of the absorber 400 without flowing along the surface of the heat exchange plate 420. There is. However, when the heat exchange plate 420 is inclined, the high concentration absorbent liquid discharged from the distribution unit 410 falls on the surface of the heat exchange plate 420, so that the amount of high concentration absorbent liquid flowing along the surface of the heat exchange plate 420 increases. Can be.

In one embodiment, absorber 400 and evaporator 300 may be disposed inside one shell 800 (see FIG. 2). The side wall 801 is provided inside the shell 800, and the inside of the shell 800 may be divided into two spaces in which the evaporator 300 and the absorber 400 are respectively installed.

In this case, the steam supply unit 430 may be an eliminator provided on the side wall 801 to selectively pass only the steam refrigerant inside the evaporator 300. The eliminator is formed by stacking a plurality of members bent as 's', and the eliminator blocks the liquid refrigerant inside the evaporator 300 and allows only the vapor refrigerant to enter the absorber 400.

In addition, the plurality of heat exchange plates 420 may be provided at one side of the steam supply unit 430 so that the steam refrigerant flowing from the evaporator 300 may flow into the side of the heat exchange plate 420.

In addition, the distribution unit 410 is provided on the plurality of heat exchange plate 420, and includes a plurality of absorption liquid flow path 411 for discharging the absorption liquid on the surface of the plurality of heat exchange plate 420.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

100: indoor unit 200: outdoor unit
300: evaporator 400: absorber
410: distribution unit 411: absorbent liquid flow path
420: heat exchange plate 421: bubble generation unit
423: groove 425: protrusion
430: steam supply unit 500: high temperature regenerator
600: low temperature regenerator 700: condenser
800: shell 801: side wall

Claims (20)

evaporator;
An absorber for absorbing the vapor refrigerant flowing from the evaporator into a high concentration absorbent liquid to produce a low concentration absorbent liquid;
A distribution unit for supplying the high concentration absorbent liquid;
A plurality of heat exchange plates in which the supplied absorption liquid flows along a surface and is spaced apart from each other;
A steam supply unit supplying a steam refrigerant between the plurality of heat exchange plates;
A bubble generator having a predetermined roughness provided on the surface of the heat exchange plate through which the absorbent liquid flows;
A high temperature regenerator for heating the low concentration absorbent liquid introduced from the absorber to separate the vapor refrigerant and the medium absorbent liquid;
And
And a low temperature regenerator for heat-exchanging the medium absorbent liquid separated from the high temperature regenerator and the vapor refrigerant.
The distribution unit is provided above the plurality of heat exchange plates, and includes a plurality of absorption liquid flow paths for discharging the absorption liquid to the surfaces of the plurality of heat exchange plates,
The plurality of heat exchange plates
The absorbent liquid discharged from the absorbent liquid flow path falls to the bubble generating unit provided on the surface,
It is installed to be inclined so that the amount of high concentration absorbing liquid flowing along the surfaces of the plurality of plates can be increased,
The surfaces of the plurality of heat exchange plates are directed toward the absorbent liquid flow path,
The absorbent liquid flows along the surface of the bubble generating unit,
Bubbles are generated by the surface resistance of the bubble forming unit, and the contact area between the absorbent liquid and the vapor refrigerant is increased,
Coolant flows in the plurality of heat exchange plates,
Absorption air conditioner, characterized in that the heat exchange with the cooling water flowing from the top to the bottom along the surface of the plurality of heat exchange plate.
The method of claim 1,
The bubble generating unit is provided with a plurality of areas protruding or recessed from the surface of the heat exchange plate, the absorption is characterized in that the foam is caused by the collision with the plurality of areas when the absorbent liquid flows along the surface of the bubble generating unit Air conditioner.
The method of claim 1,
The bubble generating unit is an absorption type air conditioner, characterized in that it comprises a plurality of grooves provided on the surface of the heat exchange plate.
The method of claim 3, wherein
The plurality of grooves are absorptive air conditioners, characterized in that provided on the surface of the heat exchange plate extending in a diagonal direction.
The method of claim 1,
The bubble generator is an absorption type air conditioner, characterized in that it comprises a plurality of protrusions protruding to the surface of the heat exchange plate.

delete delete delete The method of claim 1,
The bubble generating unit is an absorption type air conditioner, characterized in that provided on a portion of the surface of the heat exchange plate.
The method of claim 1,
The roughness (R) of the bubble generating unit is an absorption type air conditioner, characterized in that 0.025 mm ≤ R ≤ 0.5 mm range.
delete delete delete delete delete delete The method of claim 1,
And the absorber and the evaporator are disposed in one shell.
The method of claim 17,
The shell is provided with a side wall partitioned into two spaces each of which the evaporator and the absorber are installed, the vapor supply unit is provided on the side wall is an eliminator for selectively passing only the vapor refrigerant inside the evaporator,
The plurality of heat exchange plate is an absorption type air conditioner, characterized in that provided on one side of the steam supply unit. delete delete

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