KR101947679B1 - High-efficient two stage absorption refrigerator of low temperature water with increased efficiency by two stage separated heat exchange method - Google Patents

Abstract

The present invention relates to an absorption refrigerator of low temperature water and, more specifically, relates to a high-efficient two stage absorption refrigerator of low temperature water with increased efficiency by a two stage separated heat exchange method, wherein a space of a second shell is divided through a partition wall to form two space portions for a condenser and a first regenerator to be transversely or vertically separated, and a space portion at one side is formed with pressure lower than that of the other space portion at the other side to increase regeneration and condensation effects by boiling an absorption liquid to separate the absorption liquid and refrigerant at a low temperature of hot water. Moreover, an auxiliary regenerator is placed in a lower portion of a first regenerator and communicates with the space portion with low pressure for a heat pipe to be widely arranged, and an auxiliary absorption liquid is boiled at a low temperature of hot water to separate the absorption liquid and refrigerant for regeneration and condensation effects to be increased.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-efficiency low-temperature water two-stage absorption refrigerator which increases efficiency by a two-stage separation heat exchange method. BACKGROUND ART < RTI ID = 0.0 >

The present invention relates to a low-temperature water two-stage absorption refrigerator, and more particularly to a low-temperature water two-stage absorption refrigerator wherein a space of a second shell is partitioned through a partition wall to form two space portions to separate the condenser and the first regenerator right and left, (The absorption liquid and the refrigerant are separated by separating the absorption liquid from the refrigerant at a low temperature of the hot water), and the auxiliary regenerator is positioned at the lower portion of the first regenerator and the low-pressure space portion and the low- Efficient two-stage absorption refrigerator with high efficiency, which is a two-stage heat exchange system that increases the arrangement of the heat transfer tubes by communicating and boils the auxiliary diluent at low temperature (separates the absorption liquid and the refrigerant) .

The absorption type refrigerator is a refrigerator in which water flowing through a heat exchanger is cooled using the heat of vaporization when the refrigerant evaporates, and the evaporated refrigerant is condensed and reused.

On the other hand, a low-temperature water two-stage absorption refrigerator using a hot-water pipe network of district heating has been developed. The low-temperature water two-stage absorption refrigerator has two cycles. When the cooling load is lowered to 80% or less, (COP) can be improved by 25%. Most of the cooling season, except for the hot season, is operated with a cooling load of 80% or less.

The low temperature water two stage absorption chiller is a pollution free product that uses water as a refrigerant and it is a product that can prevent concentration of power in summer by using heat energy as a driving source. In addition, it is operated safely in a vacuum state, and it can be operated automatically as a combined product with a heat exchanger, thus enabling unattended operation.

This low temperature water two stage absorption type freezer is disclosed in Korean Patent Publication No. 10-1377690 filed by the present applicant and entitled " High efficiency low temperature water two stage absorption type freezer using an absorption heat exchanger ".

1, the high-efficiency low-temperature water two-stage absorption refrigerator 100 using the absorption heat exchanger includes a first shell 110, a second shell 120, a third shell 130, 1 absorption heat exchanger 210, a second absorption heat exchanger 220, a first distributor 230, and a second distributor 240.

The evaporator 111 is disposed on the left side of the first shell 110 and the absorber 112 is disposed on the right side of the evaporator 111. The first evaporator 111 is disposed between the evaporator 111 and the absorber 112, Respectively.

In the second shell 120, the first regenerator 121, the auxiliary regenerator 122 and the condenser 123 are sequentially installed from the bottom, and the second eliminator is installed on the side of the condenser 123 .

In the third shell 130, the second regenerator 131 is installed on the upper part, the auxiliary absorber 132 is installed on the lower part, and the second regenerator 131 and the auxiliary absorber 132 are respectively dropped on the bottom surface The absorption liquid is gathered on one side to facilitate the discharge, and a third eliminator is provided between the second regenerator 131 and the auxiliary absorber 132.

On the other hand, the low temperature heat exchanger 140, the high temperature heat exchanger 150, and the auxiliary heat exchanger 160 are connected to the respective devices through the absorption liquid line.

The first absorption heat exchanger 210 is disposed at the upper end of the absorber 112 of the first shell 110 and discharges the diluted absorbent discharged from the first shell 110 to the low temperature heat exchanger 140 (Concentrated liquid) injected toward the upper end of the absorber 112 is absorbed and heated, and then supplied to the low-temperature heat exchanger 140.

The second absorption heat exchanger 220 is disposed at the upper end of the auxiliary absorber 132 of the third shell 130 and supplies the diluted auxiliary absorption liquid (auxiliary intermediate liquid) discharged from the third shell 130 to the auxiliary heat exchanger Absorbing heat of the concentrated auxiliary absorbing liquid (auxiliary concentrating liquid) injected to the upper end of the auxiliary absorber 132 in the main absorber 160, and then supplies the heated auxiliary absorbing liquid to the auxiliary heat exchanger 160.

The first distributor 240 is disposed at an intermediate portion of the evaporator 111 of the first shell 110 formed of the heat transfer tube and temporarily stores the refrigerant sprayed to the evaporator 111 and drops it again to return the evaporator 111 Allow the refrigerant to evenly touch the surface.

The second distributor 230 is disposed at an intermediate portion of the absorber 112 of the first shell 110 constituted by the heat transfer tube and temporarily stores the concentrated absorbed liquid injected into the absorber 112 and drops it again so that the absorber 112 So that the absorbing liquid is evenly contacted.

Hereinafter, the operation of the high-efficiency low-temperature water two-stage absorption refrigerator using the conventional absorption heat exchanger will be described in detail with reference to the accompanying drawings.

First, the operation of the main system will be described. The absorbed liquid (diluted liquid), which is scattered at the upper end of the absorber 112 and absorbs the refrigerant vapor, is discharged from the absorber 112 and pressurized by the pump 101, (210). Then, the diluted liquid absorbs heat of the concentrated absorption liquid (rich liquid) injected to the upper end of the absorber 112 while passing through the first absorption heat exchanger 210, is heated and then supplied to the low temperature heat exchanger 140, The refrigerant is delivered to the first regenerator 121 through the first heat exchanger 140 and the high temperature heat exchanger 150 and is dispersed at the upper portion of the first regenerator 121 to discharge a portion of the refrigerant vapor, Temperature heat exchanger 150 to the second regenerator 131 via the pump 101 and is scattered at the upper portion of the second regenerator 131. [

The concentrated absorption liquid (rich liquid) discharged from the second regenerator 131 is returned to the absorber 112 via the low temperature heat exchanger 140 by the pump 101 and dispersed at the upper end of the absorber 112. At this time, since the second distributor 230 is installed at the middle portion of the absorber 112, the absorbing liquid injected into the absorber 112 is temporarily stored in the second distributor 230 and then dropped again, .

The auxiliary absorption liquid (auxiliary auxiliary liquid) which has absorbed the refrigerant vapor from the second regenerator 131 is discharged from the auxiliary absorber 132 and pressurized by the pump 101 to be supplied to the auxiliary heat exchanger 160, To the auxiliary player 122.

The refrigerant vapor is discharged at the top of the auxiliary regenerator 122 and the concentrated auxiliary absorbent liquid (auxiliary rich liquid) is returned to the auxiliary absorber 132 via the auxiliary heat exchanger 160.

At this time, the second absorption heat exchanger 220 separates the diluted auxiliary absorbing liquid (auxiliary intermediate liquid) discharged from the third shell 130 into a column of the concentrated auxiliary absorbing liquid (auxiliary concentrating liquid) And then supplied to the auxiliary heat exchanger (160).

Meanwhile, in the condenser 123, the refrigerant vapor generated in the first regenerator 121 and the auxiliary regenerator 122 is condensed, and the refrigerant is transferred to the evaporator 111. In the evaporator 111, the refrigerant is dispersed to the upper portion of the evaporator 111 by the pump 101, and the partially evaporated refrigerant vapor is transferred to the absorber 112 through the first eliminator. The non-evaporated refrigerant goes under the evaporator 111 and is again distributed to the top of the evaporator 111 by the pump 101. [ At this time, since the first distributor 240 is installed in the middle portion of the evaporator 111, the refrigerant sprayed to the evaporator 111 is temporarily stored in the first distributor 240 and then dropped again. Therefore, .

The cold water is cooled while flowing in the tube of the evaporator 111 and is used for cooling. The cooling water absorbs heat while passing through the absorber 112, the auxiliary absorber 132 and the condenser 123, (Not shown), discharges the heat to the atmosphere, is cooled, and continues to circulate back to the absorber 112.

However, in the conventional two-stage absorption refrigerator, since the first regenerator and the condenser of the second shell are installed in the same space and operate at the same temperature and the same pressure, there is a problem that the efficiency of regeneration and condensation is relatively low.

In this conventional two-stage absorption refrigerator, although the evaporator and the absorber of the first shell are formed in two stages, since they are formed in one space and the evaporator pressure at the cold water outlet portion and the evaporator pressure at the cold water inlet portion are the same, There is a problem that efficiency is lowered due to relatively low effect.

Korean Patent Registration No. 10-1377690 Korean Patent Registration No. 10-1020741

In order to solve the above-described problems, the present invention is directed to an air conditioner in which a space of a second shell is partitioned through a partition wall to form two space portions so as to separate the condenser and the first regenerator into right and left or up and down, (The absorption liquid and the refrigerant are separated by separating the absorption liquid from the refrigerant at a low temperature of the hot water), and the auxiliary regenerator is positioned at the lower portion of the first regenerator and the low-pressure space portion and the low- The two-stage separation heat exchanging system that increases the arrangement of the conduit tube by communicating and boils the auxiliary diluent at the low hot water temperature (separates the absorption liquid and the refrigerant) to improve the regeneration and condensation effect. The high efficiency low temperature water two stage absorption refrigerator The purpose is to provide.

According to the present invention, the evaporator and the absorber of the first shell are separated into two stages by the horizontal partition to reduce the evaporator pressure at the cold water outlet portion of the first shell to increase the evaporation effect to increase the efficiency. Efficiency low-temperature water two-stage absorption refrigerator having an increased efficiency.

In addition, the present invention is a two-stage separate heat exchange system that integrates a first shell and a third shell into one housing and divides them through the partition to simplify the internal structure and shorten the production period, Another object is to provide a low temperature water two stage absorption refrigerator.

According to an aspect of the present invention,

An evaporator and an absorber; a second shell having a first regenerator, an auxiliary regenerator and a condenser installed on the upper portion of the first shell; a second regenerator provided on a side of the first shell; A low-temperature water two-stage absorption refrigerator comprising a high-temperature heat exchanger, a low-temperature heat exchanger, an auxiliary heat exchanger, a plurality of pumps, and a cooling water line, a refrigerant line, an absorption liquid line, a cold water line, ; The second shell is partitioned into first and second space portions in the left and right or upper and lower portions by the first partition wall so that the condenser and the first regenerator are positioned respectively in the first and second space portions with respect to the first partition wall The second regenerator is disposed between the condenser and the first regenerator and the second regenerator is disposed between the condenser and the first regenerator so that the regenerator is positioned below or at the side of the first regenerator, And communicates with the low second space portion so as to boil the absorbing liquid at a low hot water temperature (separates the absorbing liquid and the refrigerant from each other) to enhance the regeneration and condensation effect.

Here, the first and second space portions of the second shell are formed with a first inclined surface on the bottom surface so as to discharge the intermediate liquid collected in the lower portion of the second space portion to the first space portion.

Here again, the auxiliary regenerator of the second shell is formed with a second inclined surface on the bottom surface to discharge the auxiliary concentrated solution to the auxiliary heat exchanger.

Here, the first partition of the second shell is provided with a discharge port at a lower portion to discharge the intermediate liquid collected at the lower portion of the second space to the first space portion.

Here, the second shell integrates the water box of the first player and the auxiliary player into one.

Here, the first and second space portions of the second shell are provided with a fan having a slope so as to collect the refrigerant dropped to the left and right at the central portion of the first partition, And each of the first regenerators positioned is connected to the fan to discharge the refrigerant to the evaporator of the first shell.

Here, the first and third shells are formed on the respective enclosures and are spaced apart from each other.

Here again, the first and third shells are integrated into one enclosure and are partitioned by the second partition.

Here, if the first and third shells are integrated into one enclosure, the water box of the absorber and the auxiliary absorber are integrated into one.

In this case, the first shell separates the evaporator and the absorber into two stages by the horizontal partition so as to increase the evaporation effect and the efficiency by lowering the evaporator pressure at the cold water outlet portion, Respectively.

According to the high-efficiency low-temperature water two-stage absorption refrigerator of the present invention having the above-described two-stage separate heat exchange system, the space of the second shell is partitioned through the partition walls to form two space portions so that the condenser and the first regenerator (The absorbing liquid and the refrigerant are separated from each other by separating the absorbing liquid and the refrigerant at a low temperature of the hot water to improve the regeneration and condensing effect, It is possible to increase the efficiency by increasing the regeneration and condensing effect by boiling the auxiliary diluent at a low hot water temperature (by separating the absorbing liquid and the refrigerant) by communicating with the low-pressure space portion by positioning it at the lower portion of the regenerator.

According to the present invention, the evaporator and the absorber of the first shell can be separated into two stages by the horizontal partition to lower the evaporator pressure at the cold water outlet portion of the first shell, thereby increasing the evaporation and absorption effect and increasing the efficiency.

In addition, according to the present invention, the first shell and the third shell are integrated into a single housing and are partitioned through the partition walls, thereby simplifying the internal structure and shortening the production period.

1 is a schematic diagram showing a configuration of a high efficiency low temperature water two stage absorption type refrigerator using a conventional absorption heat exchanger.
FIG. 2 is a block diagram showing the construction of a high-efficiency low-temperature water two-stage absorption refrigerator in which efficiency is enhanced by a two-stage separation heat exchange system according to the present invention.
FIG. 3 is a view showing the arrangement of a high-efficiency low-temperature water two-stage absorption type refrigerator in which efficiency is enhanced by a two-stage separation heat exchange system according to the present invention.
FIG. 4 is a view showing the arrangement of a water box in a high-efficiency low-temperature water two-stage absorption refrigerator in which efficiency is enhanced by a two-stage separate heat exchange system according to the present invention.
FIG. 5 is a block diagram showing a configuration of a high-efficiency low-temperature water two-stage absorption refrigerator in which efficiency is enhanced by a two-stage separation heat exchange system according to another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the structure of a high-efficiency low-temperature water two-stage absorption refrigerator having increased efficiency by a two-stage separation heat exchange system according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

FIG. 2 is a systematic view showing the construction of a high-efficiency low-temperature water two-stage absorption refrigerator in which efficiency is enhanced by a two-stage separation heat exchange system according to the present invention, FIG. 3 is a diagram showing a high- FIG. 4 is a view showing the arrangement of a water box in a high-efficiency low-temperature water two-stage absorption type refrigerating machine in which efficiency is enhanced by a two-stage separate heat exchange system according to the present invention, and FIG. Efficiency low temperature water two-stage absorption refrigerator having increased efficiency by a two-stage separate heat exchange system according to another embodiment of the present invention.

2 to 5, the high-efficiency low-temperature water two-stage absorption refrigerator 1 according to the present invention has a first shell 10, a second shell 20, Temperature heat exchanger 50, the auxiliary heat exchanger 60, the absorption heat exchanger 70, the first distributor 80, the second heat exchanger 70, the second heat exchanger 70, the third shell 30, the low temperature heat exchanger 40, 2 distributor 90, a cooling water line L1, a cold water line L2, a hot water line L3, a refrigerant line L4 and an absorption liquid line L5.

The evaporator 11 is disposed on the left side of the first shell 10 and the absorber 13 is disposed on the right side of the evaporator 11. The evaporator 11 is disposed between the evaporator 11 and the absorber 13, 15 are installed. At this time, the first shell 10 separates the evaporator 11 and the absorber 13 into two stages by the horizontal partition W1 so as to increase the evaporation effect and increase the efficiency by lowering the evaporator pressure at the cold water outlet portion.

The first shell 10 is formed so that the refrigerant and the concentrated solution dropped from the evaporator 11 and the absorber 13 are gathered from the lower part and discharged easily.

The inner shell of the second shell 20 is partitioned by the first partition W2 into the first space S2 and the second space S2 and the condenser 21 and the second partition W2, , The first regenerator 22 is positioned in the first and second space portions S1 and S2 and is separated from the left and right and the auxiliary regenerator 23 is positioned below the first regenerator 22 so that the pressure is relatively low And communicates with the second space S2 so as to boil the absorption liquid at a low hot water temperature (separating the absorption liquid and the refrigerant) to improve the regeneration and condensation effect. Although the second shell 20 is divided into the first and second space portions S1 and S2 by the first partition wall W2 in the drawing, the first and second space portions S1, S2.

The first partition W2 is provided with a discharge port 24 at a lower portion thereof for discharging the intermediate liquid collected at the lower portion of the second space S2 to the first space S1, It is preferable to be provided so as to be lower than the liquid level of the intermediate liquid so as to prevent the pressure of the space portion S1 and the pressure of the second space portion S2 from becoming equal to each other.

The first and second space portions S1 and S2 of the second shell 20 are formed on the bottom surface of the first space portion S1 so as to discharge the intermediate liquid collected in the lower portion of the second space portion S2 to the first inclined surface 25 are formed as needed and the auxiliary regenerator 23 of the second shell 20 may be formed as required on the bottom surface so as to discharge the auxiliary concentrate solution to the auxiliary heat exchanger 60 have.

A pan 27 having a slope is installed in the first and second space portions S1 and S2 of the second shell 20 so as to collect the refrigerant dropped to the right and left at the central portion of the first partition W2 And each first regenerator 22 located in the first and second space S1 and S2 is connected to the fan 27 to discharge the refrigerant to the evaporator 11 of the first shell 10. [ At this time, the second shell 20 integrates the first player 22 and the water box WB of the auxiliary player 23 as shown in FIG.

In addition, the auxiliary regenerator 23 has a vertical partition 23a at the center thereof, and is arranged in a stepwise manner so that the flow of the auxiliary concentrated solution can smoothly flow.

Further, a second eliminator 28 is provided between the condenser 21 and the first regenerator 22, respectively.

Subsequently, in the third shell 30, the second regenerator 31 is installed on the upper part, the auxiliary absorber 33 is installed on the lower part, and the second regenerator 31 and the auxiliary absorber 33 are loaded on the bottom, And a third eliminator 35 is provided between the second regenerator 31 and the auxiliary absorber 33. The second absorber 33 is disposed between the second absorber 33 and the second absorber 33,

On the other hand, the first shell 10 and the third shell 30 are integrated into a single enclosure and partitioned by the second partition wall W3, and the water box WB of the absorber 13 and the auxiliary absorber 33 As shown in FIG. 5. However, as shown in FIG. 5, they may be formed on the respective enclosures and spaced apart from each other as in the conventional art.

The low temperature heat exchanger 40 is supplied with the concentrated liquid discharged from the second regenerator 31 of the third shell 30 and then exchanges heat with the absorption heat exchanger 70 and the absorber 13 of the first shell 10, And the absorptive liquid line L5 passes through the inside to heat exchange the diluted liquid and the concentrated liquid.

The high temperature heat exchanger 50 is positioned between the second shell 20 and the first shell 10 so that the absorption liquid discharged from the first regenerator 22 of the second shell 20 naturally flows due to the height difference The intermediate liquid discharged from the first regenerator 22 of the second shell 20 is supplied to the second regenerator 31 of the third shell 30 to perform heat exchange and the absorption liquid line L5 is discharged into the second regenerator 31 of the third shell 30 And the heat is exchanged between the rare liquid and the intermediate liquid. In this case, the high temperature heat exchanger 50 is provided with an intermediate liquid pump (not shown) when a plate type having a high operating pressure is applied, and moves the intermediate liquid discharged from the first regenerator 22 to the second regenerator 31.

The auxiliary heat exchanger 60 exchanges heat between the auxiliary concentrate solution naturally lowered by the height difference in the auxiliary regenerator 23 of the second shell 20 and the auxiliary diluent discharged from the lower portion of the third shell 30 . At this time, the auxiliary heat exchanger 60 is provided with an intermediate liquid pump (not shown) when a plate type having a high operating pressure is applied, and moves the auxiliary concentrate solution discharged from the auxiliary regenerator 23 to the auxiliary absorber 33.

Subsequently, the absorption heat exchanger 70 is installed at the upper end of the absorber 13 of the first shell 10, is discharged from the first shell 10, and is injected from the low temperature heat exchanger 40 to the upper end of the absorber 13 The heat of the liquid is absorbed and heated, and then supplied to the low temperature heat exchanger (40). At this time, the absorption heat exchanger (70) is located above the water box (WB) of the absorber (13) and may circulate the cooling water instead of the liquid as required, and may not be installed in accordance with the design.

The first distributor 80 is installed on the horizontal partition wall W1 of the first shell 10 and temporarily stores the refrigerant falling down to the evaporator 11 located at the upper portion of the first partition 10, So that the refrigerant can be evenly contacted.

The second distributor 90 is installed on the horizontal partition wall W1 of the first shell 10 to temporarily store the concentrated solution dropped on the absorber 13 located at the upper portion of the first shell 10, So that the concentrated solution is evenly contacted.

The cooling water line L1 is connected to the absorber 13 located at the upper and lower portions of the first shell 10 and the auxiliary absorber 23 of the third shell 30 and the condenser 21 of the second shell 20 And the cold water line L2 is connected to the evaporator 11 located at the upper and lower parts of the first shell 10 to supply and discharge the cold water and the hot water line L3 is connected to the second shell 20 The first regenerator 22 is connected to the second regenerator 31 of the auxiliary regenerator 23 and the third shell 30 to supply and discharge the hot water to the first regenerator 22. The refrigerant line L4 is connected to the first shell 10, And the first regenerator 22 of the second shell 20 to supply and circulate the refrigerant. At this time, the refrigerant line P1 is provided in the refrigerant line L4.

Finally, the absorption liquid line L5 connects the lower portion of the absorber 13 of the first shell 11, the absorption heat exchanger 70, the low temperature heat exchanger 40, the high temperature heat exchanger 50 and the second shell 20 And the intermediate liquid discharged from the second shell 20 is dropped into the second regenerator 31 of the third shell 30 through the high temperature heat exchanger 50 The concentrated liquid collected in the intermediate liquid line L5-2 and the second regenerator 31 of the third shell 30 is passed through the low temperature heat exchanger 40 to the absorption heat exchanger 70 and the first shell 10 And the auxiliary liquid is collected in the lower part of the auxiliary absorber 33 of the third shell 30 through the auxiliary heat exchanger 60 to the auxiliary line 33 of the second shell 20 The subsidiary leaning line L5-4 supplied to the regenerator 23 and the auxiliary concentrate of the auxiliary regenerator 23 of the second shell 20 are supplied through the auxiliary heat exchanger 60 to the auxiliary absorber 33). The auxiliary leaching line (L5-5) At this time, the dilution pump P2 is provided in the dilution line L5-1, the dilution pump P3 is provided in the dilution line L5-3, and the auxiliary dilution pump P4 is provided in the auxiliary dilution line L5-4.

Hereinafter, the operation of the high-efficiency low-temperature water two-stage absorption refrigerator with increased efficiency by the two-stage separate heat exchange system according to the present invention will be described in detail with reference to the accompanying drawings.

First, the operation of the main system will be described. The diluted liquid (the absorbed liquid absorbed by absorbing the refrigerant vapor), which is scattered at the upper end of the absorber 13 of the first shell 10, is sucked into the absorption heat exchanger (70). At this time, since the second distributor 90 is installed in the horizontal partition 17, the absorbing liquid injected to the absorber 13 at the upper end is temporarily stored in the second distributor 90 and then dropped again. Therefore, ). ≪ / RTI >

Then, the diluted liquid absorbs the heat of the concentrated liquid (absorption liquid) that falls through the low temperature heat exchanger 40 to the absorber 13 while passing through the absorption heat exchanger 70, and is then heated and then passed through the low temperature heat exchanger 40, The intermediate liquid in the lower portion of the second space S2 of the second shell 20 is transferred to the first space S1 along the first inclined surface 25, At this time, a portion of the refrigerant vapor is discharged while being in contact with the first regenerator 22 disposed in the first and second space portions S1 and S2, and the intermediate liquid (absorbed medium absorbed liquid) Is transmitted to the second regenerator 31 of the third shell 30 through the second regenerator 50 and is scattered at the top of the second regenerator 31. [

The auxiliary auxiliary liquid (the auxiliary auxiliary liquid absorbed by absorbing the refrigerant vapor), which is dispersed in the lower portion of the third shell 30 and scattered to the upper side of the auxiliary absorber 33, is discharged from the auxiliary absorber 33, Is supplied to the auxiliary regenerator (23) of the second shell (20) via the auxiliary heat exchanger (60) by the pump (P4).

Then, the auxiliary diluent comes into contact with the auxiliary regenerator 23 to discharge the refrigerant vapor, and the auxiliary concentrate (concentrated auxiliary absorption liquid) is dispersed on the auxiliary absorber 33 via the auxiliary heat exchanger 60.

On the other hand, in the condenser 21 of the second shell 20, the refrigerant vapor generated in the first regenerator 22 and the auxiliary regenerator 23 is condensed and falls into the fan 27, and the refrigerant collected in the fan 27 And is delivered to the evaporator (11) of the first shell (10). In the evaporator 11, the refrigerant is dispersed to the upper portion of the evaporator 11 located at the upper part by the refrigerant pump P1, and the partially evaporated refrigerant vapor is transferred to the absorber 13 through the first eliminator 15. The non-evaporated refrigerant accumulates under the evaporator 11 and is again distributed to the upper portion of the evaporator 11 by the refrigerant pump P1. At this time, since the first distributor 80 is installed in the horizontal partition W1, the absorption liquid sprayed to the evaporator 11 at the upper end is temporarily stored in the first distributor 80, Since the upper evaporator 11 and the lower evaporator 11 are separated by the horizontal partition 17 in two stages, the cold water outlet portion, that is, the space in which the upper evaporator 11 is installed By lowering the pressure, the evaporation effect can be increased and the efficiency can be increased.

The cooling water is supplied to the auxiliary absorber 33 of the third shell 30 and the condenser 21 of the second shell 20 located above and below the first shell 10 through the cooling water line L1. (Not shown) to discharge the heat to the atmosphere, continue to circulate back to the absorber 15, and the cold water is circulated through the cold water line L2 to the first shell 10 And the hot water is supplied to the first regenerator 22 of the second shell 20 and the auxiliary regenerator 23 and the third shell 22 of the second shell 20 through the hot water line L3, Flows through the second regenerator (31) of the heat exchanger (30) and is used for heat exchange.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

10: first shell 20: second shell
30: third shell 40: low temperature heat exchanger
50: high temperature heat exchanger 60: auxiliary heat exchanger
70: absorption heat exchanger 80, 90: first and second distributor

Claims (10)

An evaporator and an absorber; a second shell having a first regenerator, an auxiliary regenerator and a condenser installed on the upper portion of the first shell; a second regenerator provided on a side of the first shell; A low-temperature water two-stage absorption refrigerator comprising a high-temperature heat exchanger, a low-temperature heat exchanger, an auxiliary heat exchanger, a plurality of pumps, and a cooling water line, a refrigerant line, an absorption liquid line, a cold water line, ;
And the second shell comprises:
The inside of the housing is partitioned into first and second space portions by right and left or upper and lower portions by the first partition wall so that the condenser and the first regenerator are positioned respectively in the first and second space portions on the first partition wall The second regenerator is disposed between the condenser and the first regenerator and the second regenerator is positioned between the first regenerator and the first regenerator, So that the absorption liquid is boiled at a low hot water temperature (separating the absorption liquid and the refrigerant) to improve the regeneration and condensation effect,
The first and second space portions of the second shell may include a first,
A first inclined surface is formed on the bottom surface to discharge the intermediate liquid collected in the lower portion of the second space to the first space portion,
Wherein the auxiliary regenerator of the second shell comprises:
A second inclined surface is formed on the bottom surface to discharge the auxiliary concentrate solution to the auxiliary heat exchanger,
The first partition of the second shell may include:
A discharge port is provided at a lower portion to discharge the intermediate liquid collected in the lower portion of the second space portion to the first space portion and the discharge port is provided at the lower portion of the intermediate liquid to prevent the pressure of the first space portion and the second space portion from becoming equal. Low-temperature two-stage absorption refrigerating machine with high efficiency. delete delete delete The method according to claim 1,
And the second shell comprises:
And the water box of the first regenerator and the water regenerator of the auxiliary regenerator are integrated into a single high efficiency low temperature water two stage absorption refrigerator. The method according to claim 1,
In the first and second space portions of the second shell,
Wherein the first and second spacers are connected to the fan so that the refrigerant is discharged from the first and second spaces, And the refrigerant is discharged to the evaporator of the first shell, and the efficiency is increased by the two-stage separation heat exchange system. The method according to claim 1,
Wherein the first and third shells are made of a single-
Wherein the two-stage separation heat exchanger is installed at each of the hulls and is spaced apart from each other. The method according to claim 1,
Wherein the first and third shells are made of a single-
And the second partition wall is partitioned by the first partition wall, the second partition wall, and the second partition wall. 9. The method of claim 8,
And the water boxes of the absorber and the auxiliary absorber are integrated into one when the first and third shells are integrated into a single housing, wherein the efficiency is increased by the two-stage separate heat exchange system. The method according to claim 1,
Wherein the first shell comprises:
The evaporator and the absorber are separated into two stages by the horizontal partition so as to increase the evaporation effect by lowering the evaporator pressure at the cold water outlet portion and the distributor is installed to discharge the refrigerant and the concentrated solution to the horizontal partition And a high-efficiency low-temperature water two-stage absorption-type refrigerating machine in which efficiency is improved by a two-stage heat exchange method.

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