KR102264746B1 - Absorption chiller including a tray part to make the refrigerant or absorption liquid evenly distributed - Google Patents

Abstract

The present invention relates to an absorption chiller. More particularly, the present invention relates to an absorption chiller comprising a tray unit for uniformly distributing a refrigerant or absorbent liquid with improved heat exchange efficiency as the refrigerant or absorbent liquid is uniformly distributed on the surface of a heat transfer pipe by an evaporator tray part and an absorber tray part.

Description

Absorption chiller including a tray part to make the refrigerant or absorption liquid evenly distributed

The present invention relates to an absorption chiller, and more particularly, the refrigerant or absorbent liquid is uniformly distributed on the surface of the heat transfer tube by the evaporator tray part and the absorber tray part, so that the heat exchange efficiency is further improved and the refrigerant or absorbent liquid is uniformly distributed It relates to an absorption refrigerator including a tray part.

In general, an absorption chiller is a device that uses heat of vaporization generated when a refrigerant evaporates to cool water flowing through a pipe, and condenses and reuses the evaporated refrigerant.

In detail, the absorption refrigerator may be composed of a regenerator, a condenser, an evaporator and an absorber, and has a structure in which a refrigerant and an absorption liquid circulate through these components.

More specifically, in the evaporator, the liquid refrigerant is vaporized and phase-converted into refrigerant vapor, and in this process, cold water is generated through the vaporization heat of the refrigerant. The refrigerant vapor generated in the evaporator moves to the absorber and mixes with the absorbent liquid (concentrated liquid). The absorbent liquid (diluted solution) diluted by mixing the refrigerant vapor is moved to the regenerator and heated through the driving heat source in the regenerator to separate the refrigerant vapor. The separated refrigerant vapor is moved to the condenser, cooled in the condenser, and phase-converted back to the liquid refrigerant. The liquid refrigerant is supplied back to the evaporator to repeat the above-described process.

At this time, a supply tray is provided on the upper portions of the evaporator and absorber to uniformly distribute and supply the refrigerant and the absorbent. In order to maximize the efficiency of heat exchange in the evaporator and the absorber, the refrigerant and the absorbent are transferred to the surface of the heat transfer tube formed in the evaporator and absorber. It should be supplied uniformly.

However, in the case of the supply trays according to the prior art, since the refrigerant or the absorption liquid is made to fall directly onto the outer surface of the heat transfer tube, it is difficult to achieve a uniform distribution when the flow rate is changed, so there is a problem in that heat exchange efficiency is lowered.

Many studies have been made to solve the above problems, and as one of the related prior art, Korean Patent Application Laid-Open No. 10-2007-0014725 is disclosed.

Laid-Open Patent Publication No. 10-2007-0014725 2007.02.01.

The present invention was created to solve the problems of the prior art, and the problem to be solved in the present invention is to uniformly distribute the refrigerant or absorbent liquid on the surface of the heat transfer tube by the evaporator tray part and the absorber tray part, so that heat exchange efficiency It is to provide an absorption refrigerator including a tray portion for uniformly distributing the improved refrigerant or absorption liquid.

The present invention is an absorption refrigerator including an evaporator 100, an absorber 200, a high-temperature regenerator 300, a low-temperature regenerator 400, a condenser 500, and a heat exchange unit 600, the refrigerant is uniformly distributed and supplied The evaporator 100 including the evaporator tray part 120, the absorber 200 including the absorber tray part 220 to which the absorbent liquid is uniformly distributed and supplied, and the mutual configuration between the evaporator 100 and the absorber 200 A first shell 10 including an eliminator 11 provided to partition the; a second shell 20 including the high-temperature regenerator 300 and provided at an upper side of the first shell 10; and a third shell (30) including a condenser (500) and a low-temperature regenerator (400), the third shell (30) provided on the other side of the upper portion of the first shell (10).

At this time, a refrigerant collecting unit 13 is provided at the lower portion of the evaporator 100 to collect the refrigerant that has not evaporated, and when the refrigerant accommodated in the refrigerant collecting unit 13 is contaminated by the absorption liquid, the collected refrigerant is It is bypassed to the outlet of the first shell 10 .

In addition, the refrigerant collecting unit 13 is provided with a specific gravity sensor for measuring the specific gravity of the collected refrigerant, so that the bypass of the refrigerant is determined according to the specific gravity value measured by the specific gravity measuring sensor.

On the other hand, in the heat exchange unit 600, the diluted absorbent liquid is transferred from the absorber 200 of the first shell 10 and the absorbent liquid is transferred from the low-temperature regenerator 400 of the third shell 30, so that the mutual solution a low-temperature heat exchanger 610 for heat exchange; and a high-temperature heat exchanger 620 in which the dilute absorbent solution having undergone primary heat exchange is transferred from the low-temperature heat exchanger 610, and an intermediate solution is transmitted from the high-temperature regenerator 300 of the second shell 20 to exchange solutions with each other. ); should be included.

On the other hand, on the absorber 200 side of the first shell 10, the extraction device 12 for discharging the non-condensable gas generated in the absorber 200 to the outside is provided.

Meanwhile, the evaporator tray unit 120 includes a refrigerant distribution unit 121 that receives refrigerant and distributes it to the evaporator heat pipe 110 of the evaporator 100 ; and a refrigerant supply unit 122 that receives the refrigerant from the refrigerant distribution unit 121 and supplies the received refrigerant to the surface of the evaporator heat pipe 110 at a constant flow rate and flow rate.

At this time, the refrigerant distribution unit 121, the upper portion of the tray body (121a) made in the form of a housing extending in the front and rear directions; It consists of a plate having a height smaller than the height of the tray body (121a), and is provided to extend in the front-rear direction on the upper surface of the bottom surface of the tray body (121a), one surface is provided to face the width direction of the tray body (121a) To be such, a pair of overflow walls (121c) provided symmetrically in the width direction; An upper guide part (121b) which is arranged to be inclined with the other end facing the space between the pair of overflow walls (121c), each of which is fastened to both ends of the tray body (121a) in the width direction while a pair is extended in the front-rear direction; A plurality of refrigerant distribution holes 121d are formed through the bottom surface between the width direction sidewall of the tray body 121a and the overflow wall 121c.

In addition, the refrigerant supply unit 122, both ends in the width direction are inclined downward, the inclined end is formed in a downwardly bent shape, the lower guide portion disposed under the tray body (121a) of the refrigerant supply unit 122 (122a); Refrigerant receivers 122b provided on the outer sides of both ends of the lower guide portion 122a in the width direction to receive the refrigerant flowing downward along the inclined surface of the lower guide portion 122a; and a refrigerant supply hole 122c for distributing and dropping the refrigerant accommodated in the refrigerant receiver 122b by arranging a plurality of them on the bottom surface of the refrigerant receiver 122b.

According to the present invention, there is an effect that the heat exchange efficiency is further improved as the refrigerant or the absorbent liquid is uniformly distributed on the surface of the heat transfer tube by the evaporator tray part and the absorber tray part.

Meanwhile, according to the present invention, a specific gravity sensor is provided in the refrigerant collecting part of the evaporator to detect the specific gravity of the collected refrigerant in real time to determine whether it is contaminated, so that the absorption chiller can be stably driven with a certain efficiency. make it possible

1 is a schematic configuration diagram of an absorption refrigerator including a tray portion for uniformly distributing a refrigerant or an absorption liquid according to the present invention.
2 is a view of an installation embodiment of the evaporator tray unit (absorber tray unit) applied to the present invention.
3 is an exploded perspective view of an evaporator tray part (absorber tray part) applied to the present invention;
4 is a perspective cross-sectional view of an evaporator tray part (absorber tray part) applied to the present invention.
5 is a cross-sectional view of an embodiment of the use of the evaporator tray unit (absorber tray unit) applied to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 1 , the present invention provides an absorption chiller including an evaporator 100 , an absorber 200 , a high-temperature regenerator 300 , a low-temperature regenerator 400 , a condenser 500 and a heat exchange unit 600 . , the evaporator 100 including the evaporator tray part 120 to which the refrigerant is uniformly distributed and supplied, the absorber 200 including the absorber tray part 220 to which the absorbent liquid is uniformly distributed and supplied, and the evaporator 100 and the absorber A first shell (10) comprising an eliminator (11) provided to partition a mutual configuration between (200); a second shell 20 including the high-temperature regenerator 300 and provided at an upper side of the first shell 10; and a third shell (30) including a condenser (500) and a low-temperature regenerator (400), the third shell (30) provided on the other side of the upper portion of the first shell (10).

The first shell 10 is for generating and supplying cold water, so that the evaporator 100 and the absorber 200 are installed in one body by the eliminator 11 .

The evaporator 100 injects a refrigerant in a cooled state onto the surface of the evaporator heat transfer tube 110 through which cold water requiring heat exchange flows, so that heat exchange between the refrigerant and cold water is achieved, and the evaporator heat transfer tube 110 and the evaporator tray part ( 120).

The evaporator heat pipe 110 allows cold water to flow, but is made of a material having corrosion resistance, and a plurality of heat pipes 110 are arranged to extend in one direction.

On the other hand, the evaporator tray unit 120 is for supplying a refrigerant for cooling the cold water passing through the evaporator heat transfer tube 110, and receives the cooled refrigerant to evenly supply the refrigerant to the plurality of evaporator heat transfer tubes 110, It is disposed on the upper portion of the evaporator heat pipe 110 , which includes a refrigerant distribution unit 121 and a refrigerant supply unit 122 as shown in FIGS. 2 to 5 .

The refrigerant distribution unit 121 receives and distributes the refrigerant in the front and rear directions of the evaporator heat pipe 110, and provides a tray body 121a, an upper guide unit 121b, an overflow wall 121c, and a refrigerant distribution. and a hole 121d.

The tray body (121a) is made in the form of a housing having an open top and extending in the front-rear direction.

The overflow wall (121c) is provided with a pair of protrusions on the upper surface to divide the inner space of the tray body (121a) in the width direction.

In other words, the overflow wall (121c) is made of a plate having a height smaller than the height of the tray body (121a), the tray body (121a) is provided extending in the front-rear direction on the upper surface of the bottom surface, one surface is the tray body (121a) to be provided opposite to the width direction, a pair is provided symmetrically in the width direction.

According to the above configuration, the inside of the tray body (121a) is divided into three sections in the width direction, and the space between the pair of overflow walls (121c) is accommodated in the width direction of the overflow wall (121c). A pair of spaces configured on the outside is called a supply space.

The upper guide portion 121b is each coupled to both ends of the tray body 121a in the width direction while a pair of the upper guide portions 121b extend in the front-rear direction, and the other end faces the space between the pair of overflow walls 121c. make it possible

In other words, the upper guide part 121b is inclined downward from the bent fastening part and the bent one end of the fastening part having one end bent to enable fitting with one end in the width direction of the tray body 121a. It is bent and extended, and the extended end includes a guide plate that is disposed in an upper position toward the receiving space (S1).

That is, the upper guide part 121b is accommodated in a receiving space that is a space between the overflow wall 121c in which the refrigerant delivered from the condenser 500 in a state in which the upper guide part 121b is fastened with the tray body 121a by the bent fastening part. Guide the flow as much as possible.

On the other hand, the refrigerant distribution hole (121d) is for distribution and supply of the refrigerant supplied to the inside of the tray body (121a), the tray body (121a) in the width direction between the side wall and the overflow wall (121c) on the bottom surface of a plurality of to form a penetration.

In other words, a plurality of the refrigerant distribution holes 121d are arranged in a front-rear direction on the bottom surface of the supply space, so that when the level of the refrigerant supplied to the receiving space is gradually increased, the refrigerant passes over the overflow wall 121c. It flows into the supply space, which causes the refrigerant to be supplied downward through the distribution hole 121d.

Meanwhile, the refrigerant supply unit 122 receives the refrigerant from the refrigerant distribution unit 121 so that the received refrigerant is supplied to the surface of the evaporator heat pipe 110 at a constant flow rate and flow rate, and a lower guide unit ( 122a), a refrigerant receiver 122b and a refrigerant supply hole 122c.

Both ends of the lower guide part 122a are inclined downward in the width direction, and the inclined ends are bent downward, so that the lower guide part 122a is disposed under the tray body 121a of the refrigerant supply part 122 .

At this time, the lower guide portion (122a) is disposed in the lower portion of the tray body (121a) so that the inclined surface is arranged in the lower portion of the refrigerant decomposition hole.

On the other hand, the coolant receiver 122b is provided on the outer side of both ends of the width direction of the lower guide part 122a, respectively, so as to receive the coolant flowing downward along the inclined surface of the lower guide part 122a.

In other words, the refrigerant receiver (122b) is configured to receive the refrigerant through the open upper portion, and the lower guide portion (122a) so that one side in the width direction is located at the lower end of the bent portion of the lower guide portion (122a). provided on the outer surface of

At this time, the upper end of the other side surface in the width direction of the coolant receiver 122b is formed to be disposed at a higher position than the bent portion to prevent the refrigerant supplied to the coolant receiver from leaking to the outside.

Meanwhile, a plurality of the refrigerant supply holes 122c are arranged on the bottom surface of the refrigerant receiver 122b so that the refrigerant accommodated in the refrigerant receiver 122b is distributed and dropped.

As described above, in the present invention, after the refrigerant delivered at a constant speed is accommodated in the receiving space (S1) inside the tray body (121a), it is supplied to the lower part through the refrigerant distribution hole (121d) by overflow, and this is the refrigerant. As the receiver 122b distributes and supplies the refrigerant, the refrigerant is supplied in a uniformly distributed state, and the heat exchange efficiency is improved by supplying the refrigerant at a constant speed and flow rate.
In detail, the refrigerant supplied to the evaporator tray 120 is accommodated in the accommodating space S1 while being guided by the upper guide part 121b, and the coolant level accommodated in the accommodating space S1 gradually rises. When the flow occurs, it flows to the supply space, which is the adjacent space, beyond the overflow wall 121c, and is transmitted to the refrigerant supply unit 122 while falling downward through the refrigerant distribution hole 121d.
On the other hand, the refrigerant transferred from the refrigerant distribution unit 121 to the refrigerant supply unit 122 flows downward along the inclined surface of the lower guide unit 122a and is supplied to the refrigerant receiver 122b to provide the refrigerant supply hole. It is distributed and supplied to the front and rear directions of the evaporator heat transfer unit 110 while falling downward in a distributed state through the 122c so that heat exchange is performed.

On the other hand, as heat exchange occurs while passing between the plurality of evaporator heat pipes 110, some of the refrigerant evaporates to become refrigerant vapor, and the remaining refrigerant that has not evaporated is accommodated in the refrigerant collecting unit 13 disposed below, The received refrigerant is supplied back to the evaporator tray unit 120 by the refrigerant pump to be sprayed.

On the other hand, the absorber 200 is for absorbing refrigerant vapor evaporated in the process of passing through the evaporator 100 to generate a low-temperature dilute solution, and includes an absorber heat pipe 210 and an absorber tray part 220. .

The absorber heat pipe 210 is made to flow the cooling water therein, is made of a material having corrosion resistance, and is arranged so that a plurality of them extend in one direction.

At this time, the cooling water is supplied cooled to a predetermined temperature from an external cooling tower (not shown), which is cooled to an appropriate temperature according to the user's set temperature and supplied.

On the other hand, the absorber tray part 220 is configured to receive the absorbent liquid in the state provided on the absorber heat transfer tube 210 and distribute it to the absorber heat transfer tube 210 , which has the same structure as the evaporator tray part 120 . , and a detailed description thereof will be omitted.

Refrigerant vapor generated in the evaporator 100 by the above configuration is condensed and liquefied as heat exchange with the absorber heat pipe 210 is made, which is mixed with the absorbent liquid falling by the absorber tray part 220 and is diluted It becomes an absorbent liquid and collects in the lower part of the first shell 10 .

The rare-absorbent liquid collected in the first shell 10 is supplied to the high-temperature regenerator 300 through the heat exchanger 600 by the rare-absorbent pump to be processed, and the cooling water that has passed through the absorber heat transfer tube 210 is converted into a condenser (500). It is supplied to and heat exchanged, and then discharged, which will be described later in more detail.

On the other hand, the absorber 200 may generate a non-condensable gas, and the absorber 200 side of the first shell 10 is provided with a extraction device 12 to discharge the non-condensable gas to the outside. let it be

In other words, the extraction device 12 includes an extraction tube connected to be positioned above the liquid level of the solution in the absorber 200, a extraction tank receiving non-condensable gas from the extraction tube, and a non-condensing gas accommodated in the extraction tank. It includes a bleed pump (not shown) that discharges to the outside, and a manual valve is provided in the extraction pipe to operate only manually.

Meanwhile, between the evaporator 100 and the absorber 200, an eliminator 11 for preventing the absorption liquid from being supplied to the evaporator 100 is configured, and the eliminator 11 is corrosion-resistant. It should be made of strong stainless material.

On the other hand, when the refrigerant accommodated in the refrigerant collecting unit 13 is contaminated by the absorption liquid, the refrigerant is bypassed to the outlet of the first shell 10 to be processed and then used.

In other words, the refrigerant collecting unit 13 is provided with a specific gravity sensor for measuring the specific gravity of the collected refrigerant, and when the specific gravity measured by the specific gravity measuring sensor exceeds an appropriate reference value, it is determined that it is mixed by the absorbent solution and The refrigerant accommodated in the refrigerant collecting unit 13 is bypassed to the outlet of the first shell 10 so that it can be used after being regenerated through the high-temperature regenerator 300 and the low-temperature regenerator 400 .

On the other hand, the second shell 20 is for regenerating the dilute absorbent liquid discharged from the first shell 10, and is composed of a high-temperature regenerator 300, which evaporates and separates the refrigerant, and generates an intermediate solution. made to do

In other words, the second shell 20 is made of a single body in which a plurality of steam heat pipes 310 are arranged, the steam heat pipe 310 is made of a cupronickel tube having heat resistance and corrosion resistance, and the steam heat pipe 310 ) allows the steam heated to a predetermined temperature to flow.

According to the above configuration, the dilute absorption liquid supplied to the second shell 20 exchanges heat with the vapor heat pipe 310, so that the refrigerant evaporates to form refrigerant vapor. The refrigerant vapor is then supplied to the condenser 500 for processing, and the intermediate solution is supplied to the low-temperature regenerator 400 for processing.

Meanwhile, the steam passing through the steam heat pipe 310 is condensed according to heat exchange to become condensed water, which is discharged to the outside through the drain pipe 320 .

On the other hand, the third shell 30 is for regenerating the refrigerant vapor and the intermediate solution formed in the second shell 20 , and among the internal space partitioned by the separator 32 and the eliminator 11 . It includes a low-temperature regenerator 400 provided in one space and a condenser 500 provided in the other space, which is formed as a single body.

The low-temperature regenerator 400 includes a plurality of regenerator heat transfer tubes 410 through which the high-temperature refrigerant vapor received from the high-temperature regenerator 300 flows, and the regenerator heat transfer tube 410 is connected to the It is arranged in a space on one side partitioned inside the third shell 30 , and the intermediate solution is received and accommodated from the second shell 20 in this space on one side.

According to the above configuration, the intermediate solution is heated while exchanging heat with the regenerator heat transfer tube 410, whereby the refrigerant contained in the intermediate solution is secondarily evaporated to become secondary refrigerant vapor and delivered to the condenser (500). processed, and the intermediate solution becomes an absorbent solution while being concentrated, and is supplied to the absorber 200 to be used.

On the other hand, the refrigerant vapor passing through the regenerator heat transfer tube 410 is condensed to become a refrigerant, which is transmitted to the other side space.

On the other hand, the condenser 500 is for receiving and processing the second refrigerant vapor from the low-temperature regenerator 400, which is configured to condense refrigerant vapor in a state located at the uppermost end from the other side of the third shell 30 .

In other words, the condenser 500 includes a condenser heat transfer tube 510 arranged at the uppermost end of the other side of the third shell 30 that receives the cooling water that has undergone primary heat exchange from the absorber heat pipe 210, and the low temperature The second refrigerant vapor received from the regenerator 400 is condensed while in contact with the condenser heat transfer tube 510 and is collected in the lower portion of the space on the other side of the third shell 30 .

That is, the refrigerant transferred from the regenerator heat pipe 410 and the refrigerant condensed by the condenser 500 are accommodated in the lower portion of the condenser 500 , which is then supplied to the evaporator 100 to be used.

Meanwhile, in the present invention, the heat exchange unit 600 is provided on the flow path of the absorbent liquid to further improve the heat exchange efficiency of the absorbent liquid.

In other words, the heat exchanger 600 is a low-temperature heat exchanger in which the dilute absorbent liquid of the first shell 10 is transferred and the absorbent liquid of the low-temperature regenerator 400 of the third shell 30 is transferred, thereby exchanging the solution with each other. A high-temperature heat exchanger in which the dilute absorbent liquid subjected to primary heat exchange is transferred from 610 and the low-temperature heat exchanger 610, and an intermediate solution is transferred from the high-temperature regenerator 300 of the second shell 20 to exchange solutions with each other. (620).

That is, the absorbent liquid regenerated in the low-temperature regenerator 400 is transferred to the absorber 200 through the low-temperature heat exchanger 610, and the intermediate solution intermediately treated in the high-temperature regenerator 300 is a high-temperature heat exchanger 620. is supplied to the low-temperature regenerator 400 through .

Accordingly, it is possible to save energy consumed for heating each solution.

Hereinafter, the circulation process of the absorption chiller of the present invention configured as described above will be described for each circulation line.

First, the cold water circulation line is configured such that the cold water is cooled while passing through the evaporator 100 of the first shell 10 and discharged to the outside of the first shell 10 .

On the other hand, in the cooling water circulation line, cooling water is supplied from a cooling tower provided outside to the absorber heat pipe 210 of the first shell 10 and passes through the absorber 200, and then the condenser heat pipe 510 of the third shell 30. is transferred to the condenser 500, and then discharged to the outside.

That is, in the process of passing through the absorber heat pipe 210 , the cooling water is heat-exchanged with the absorbent liquid, absorbing the heat of the absorbent liquid and discharged, and thereafter, while passing through the condenser 500 , heat is absorbed while exchanging heat with the refrigerant vapor is emitted by

On the other hand, the absorption liquid circulation line is dispersed to the absorber 200 and then processed while passing through the high-temperature regenerator 300 and the low-temperature regenerator 400 sequentially, and then dispersed again to the absorber 200 to form a constant circulation cycle. do.

In other words, the absorbent liquid is heat-exchanged with the absorber heat transfer tube 210 in the absorber 200, absorbs refrigerant vapor, and is collected in the lower portion of the first shell 10 as a rare absorption liquid, which is a low-temperature heat exchanger (610). and the high-temperature heat exchanger 620 and sequentially supplied to the high-temperature regenerator 300, which absorbs heat while exchanging heat with the steam heat pipe 310, and as a result, some of the refrigerant contained in the dilute absorbent is evaporated. It becomes vapor, and the diluted absorbent solution becomes an intermediate solution.

Thereafter, the intermediate solution is supplied to the low-temperature regenerator 400 through the high-temperature heat exchanger 620 to absorb heat while exchanging heat with the regenerator heat transfer tube 410. Accordingly, the refrigerant contained in the intermediate solution is evaporated and the refrigerant It becomes vapor and is transferred to the condenser, and the intermediate solution is regenerated as an absorption liquid again to be supplied to and used by the absorber 200 .

On the other hand, the refrigerant vapor generated in the high-temperature regenerator 300 is supplied to the regenerator heat transfer tube 410 of the low-temperature regenerator 400 and is condensed while heat-exchanging with the intermediate solution to undergo a phase change to the state of the refrigerant solution, which It is transmitted to the lower side of the condenser 500 .

On the other hand, the refrigerant vapor generated in the low-temperature regenerator 400 is condensed while heat exchange is made in the process of passing through the condenser 500 and collected in the lower part of the condenser 500, which is regenerated in the low-temperature regenerator 400 It is supplied to the evaporator 100 together with refrigerant vapor to be used for heat exchange of cold water.

Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it should be understood that the scope of the present invention extends to a range substantially equivalent to the embodiment of the present invention, Various modifications can be made by those of ordinary skill in the art to which the invention pertains without departing from the spirit of the invention.

10: first shell 11, 31: eliminator
12: extraction device 13: refrigerant collection unit
20: second shell 30: third shell
100: evaporator 110: evaporator heat pipe
120: evaporator tray part 121: refrigerant distribution part
121a: tray body 121b: upper guide part
121c: overflow wall 121d: refrigerant distribution hole
122: refrigerant supply unit 122a: lower guide unit
122b: Refrigerant receiver 122c: Refrigerant supply hole
200: absorber 210: absorber heat pipe
220: absorber tray part
300: high-temperature regenerator 310: steam heat pipe
320: drain pipe
400: low-temperature regenerator 410: regenerator heat pipe
500: condenser 510: condenser heat pipe
600: heat exchanger 610: low-temperature heat exchanger
620: high temperature heat exchanger

Claims (8)

In the absorption refrigerator comprising an evaporator 100, an absorber 200, a high-temperature regenerator 300, a low-temperature regenerator 400, a condenser 500 and a heat exchange unit 600,
The evaporator 100 including the evaporator tray part 120 to which the refrigerant is uniformly distributed and supplied, the absorber 200 including the absorber tray part 220 to which the absorbent liquid is uniformly distributed and supplied, and the evaporator 100 and the absorber ( 200) a first shell 10 including an eliminator 11 provided to partition a mutual configuration between;
a second shell 20 including the high-temperature regenerator 300 and provided at an upper side of the first shell 10; and
a third shell 30 including a condenser 500 and a low-temperature regenerator 400 and provided on the other upper side of the first shell 10;
includes,
The evaporator 100,
It further includes an evaporator heat transfer tube 110 that allows cold water to flow, is made of a material having corrosion resistance, a plurality of pieces are arranged extending in one direction, and the evaporator tray part 120 is provided on the upper part,
The evaporator tray unit 120,
a refrigerant distribution unit 121 extending in the front-rear direction to receive the refrigerant and discharge it downward; and
a refrigerant supply unit 122 provided under the refrigerant distribution unit 121 to receive the falling refrigerant and supply it to the surface of the evaporator heat pipe 110;
includes,
The refrigerant distribution unit 121,
A tray body (121a) formed in the form of a housing having an open top and extending in the front-rear direction;
It consists of a plate having a height smaller than the height of the tray body (121a), and is provided to extend in the front-rear direction on the upper surface of the bottom surface of the tray body (121a), one surface is provided to face the width direction of the tray body (121a) To be so, the overflow wall (121c) provided with a pair symmetrically in the width direction;
An upper guide part (121b) which is arranged to be inclined with the other end facing the space between the pair of overflow walls (121c), each of which is fastened to both ends of the tray body (121a) in the width direction while a pair is extended in the front-rear direction; and
a refrigerant distribution hole (121d) having a plurality of penetrations formed on the bottom surface between the width direction sidewall and the overflow wall (121c) of the tray body (121a);
includes,
The upper guide part 121b,
a bent fastening part having one end bent to enable fitting with one end of the tray body (121a) in the width direction; and
a guide plate that is bent downward from one bent end of the fastening part and is disposed on the upper end of the receiving space (S1), the extended end of which is the space between the overflow wall (121c);
includes,
The refrigerant supply unit 122,
A lower guide part (122a) having both ends in the width direction inclined downward, the inclined ends of which are bent downward, and disposed under the tray body (121a) of the refrigerant supply part (122);
Refrigerant receivers 122b provided on the outer sides of both ends of the lower guide portion 122a in the width direction to receive the refrigerant flowing downward along the inclined surface of the lower guide portion 122a; and
a refrigerant supply hole (122c) for distributing and dropping the refrigerant accommodated in the refrigerant receiver (122b) so that a plurality of them are arranged on the bottom surface of the refrigerant receiver (122b);
includes,
The refrigerant supplied to the evaporator tray unit 120 is,
As guided by the upper guide part 121b, the refrigerant is accommodated in the accommodation space S1, and when the water level gradually rises, the refrigerant received in the accommodation space S1 goes beyond the overflow wall 121c to the supply space, which is a neighboring space. flow, and it is transferred to the refrigerant supply unit 122 while falling downward through the refrigerant distribution hole 121d,
The refrigerant transferred from the refrigerant distribution unit 121 to the refrigerant supply unit 122 is,
It flows downward along the inclined surface of the lower guide part 122a, is supplied to the refrigerant receiver 122b, and falls downward in a state distributed through the refrigerant supply hole 122c in the front-rear direction of the evaporator heat pipe 110. is distributed and supplied so that heat exchange occurs,
In the lower part of the evaporator 100,
A refrigerant collecting unit 13 for collecting non-evaporated refrigerant is provided,
When the refrigerant accommodated in the refrigerant collecting unit 13 is contaminated by the absorption liquid, the collected refrigerant is bypassed to the discharge port of the first shell 10,
On the absorber 200 side of the first shell 10,
An absorption chiller comprising a tray for uniformly distributing a refrigerant or an absorbent liquid, characterized in that a brewing device (12) for discharging the non-condensed gas generated in the absorber (200) is provided.
delete The method according to claim 1,
In the refrigerant collecting unit 13,
A specific gravity sensor for measuring the specific gravity of the collected refrigerant is provided, and the refrigerant or absorbent liquid is uniformly distributed, characterized in that the bypass of the refrigerant is determined according to the specific gravity value measured by the specific gravity sensor. absorption chiller.
The method according to claim 1,
The heat exchange unit 600,
a low-temperature heat exchanger 610 in which the diluted absorbent liquid is transferred from the absorber 200 of the first shell 10 and the absorbent liquid is transferred from the low-temperature regenerator 400 of the third shell 30 to exchange solutions with each other; and
The high-temperature heat exchanger 620 in which the primary heat exchange is performed is transferred from the low-temperature heat exchanger 610, and the intermediate solution is transferred from the high-temperature regenerator 300 of the second shell 20, thereby exchanging the solution with each other. ;
An absorption chiller comprising a tray for uniformly distributing a refrigerant or an absorbent liquid, characterized in that it comprises a.
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