KR0161033B1 - Absorptive type airconditioner - Google Patents

Abstract

The present invention relates to an absorption type air conditioner using an aqueous lithium bromide solution, and in particular, a generator for separating a rare solution into a high temperature and high pressure concentrated solution and a refrigerant vapor, and condensing the high temperature and high pressure refrigerant vapor separated from the generator during cooling operation. An internal cylinder having a condenser function, and an absorber function for allowing refrigerant vapor evaporated during cooling operation to be absorbed in a concentrated solution to be converted into a rare solution, and a condenser function for condensing refrigerant vapor separated from the generator during heating operation. And a first external cylinder having an absorber function for allowing the condensed refrigerant to be absorbed in the agricultural solution and converting it into a rare solution, and a second external cylinder for precooling the agricultural liquid separated from the generator during a cooling operation. In the cooling operation, the refrigerant vapor separated from the generator has a large area. Heat transfer fins built into the inner cylinder and condensation in the inner cylinder, and during the cooling operation is controlled to flow down to the inner wall of the second outer cylinder in the farm solution separated from the generator to cool more vapor in the first outer cylinder Is provided with a distribution member disposed on the upper portion of the second outer cylinder to be absorbed in the agricultural solution to improve the condensation efficiency of the refrigerant vapor and to improve the absorption efficiency of the first outer cylinder to further improve the heating and cooling efficiency will be.

Description

Absorption air conditioner

The present invention relates to an absorption type air conditioner for heating the room by heating a lithium bromide solution (Lithium Bromide Solution), in particular, to improve the condensation efficiency of the refrigerant vapor and at the same time to improve the cooling efficiency of the agricultural solution of the absorption air conditioner It relates to an absorption type air conditioner that can improve the efficiency.

Generally, a flawless air conditioner for heating a lithium bromide aqueous solution to provide room heating and cooling is an application number 93-8289 filed by the applicant of the present invention on May 14, 1993.

As shown in FIG. 1, the absorption type air conditioner of the patent application No. 93-8289, filed by the applicant of the present invention, and the first and second external cylinders 61, 62 serving as an evaporator and an absorber during cooling operation; The internal cylinder 64 coaxially disposed to act as a condenser via the air cooling fin 121a inside the first outer cylinder 62 and the high-temperature, high-pressure refrigerant vapor generated from the generator 65 is a steam transfer pipe. A plurality of branch pipes 74 respectively supplying constant refrigerant steam to the inner cylinder 64 through the 74a, and the refrigerant liquid condensed in the inner cylinder 64 through the connection pipes 71a and 71b. A refrigerant liquid distributor (60) for distributing the refrigerant liquid on the surface of the cold water pipe (77) to cool the cold water flowing in the cold water pipe (77), which is supplied and spirally disposed, and the high temperature and high pressure generated by the generator (65). Is supplied to the solution heat exchanger (66) and the concentrate is supplied to the phase of the second outer cylinder (62). After supplying and cooling to the cold water pipes (77) characterized in that it consists of a concentrated liquid distributor 63 for absorbing the refrigerant vapor evaporated from the surface to eject the heat of absorption to the outer wall surface of the first outer cylinder (61) do.

In the conventional absorption type air conditioner, the ash is separated from the generator 65 into the concentrated solution and the refrigerant vapor, and the refrigerant vapor separated from the generator 65 is supplied to the inner cylinder 64 having the condenser function during the cooling operation. do.

In addition, the refrigerant vapor supplied to the inner cylinder 64 condenses while dissipating heat. At this time, since the heat transfer area of the inner cylinder 64 is narrow, the heat of the refrigerant vapor is not easily dissipated. It lowered and it did not improve air-conditioning efficiency further.

In addition, the concentrated solution separated from the generator 65 is supplied to the solution heat exchanger 66 and heat-exchanged, and then supplied to the first outer cylinder 61 having an absorber function.

At this time, the concentrated solution passing through the solution heat exchanger 66 is supplied to the first external cylinder 61 in a state in which the second external cylinder 62 is not sufficiently cooled, so that the refrigerant vapor is evaporated during the cooling operation. The first external cylinder 61 having an absorber function was not absorbed into the agricultural solution smoothly, so that a high-quality ash solution was supplied to the generator 65.

As a result, the absorption efficiency of the refrigerant vapor absorbed by the agricultural liquid in the external cylinder 61 having the absorber function is lowered, and the refrigerant efficiency in the generator 65 is increased by lowering the absorption efficiency of the external cylinder 61. The separation did not improve the cooling and heating efficiency of the absorption air conditioner.

That is, the conventional absorption type air conditioner has a problem in that the cooling and heating efficiency of the absorption type air conditioner is not further improved due to the decrease in the condensation efficiency of the refrigerant vapor and the absorption efficiency of the agricultural solution.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to improve the condensation efficiency of refrigerant vapor condensed in an inner cylinder having a condenser function, and at the same time, the refrigerant vapor in a first outer cylinder having an absorber function. The present invention provides an absorption type air conditioner that can effectively improve the cooling and heating efficiency of an absorption type air conditioner by effectively cooling the farm solution in the second outer cylinder so as to improve the absorption efficiency absorbed by the agricultural solution.

Absorption type air conditioner of the present invention for achieving the above object is a generator for separating the rare solution into a high temperature and high pressure concentrated solution and refrigerant steam, and a condenser function for condensing the refrigerant steam of high temperature and high pressure separated from the generator during the cooling operation It has an internal cylinder and an absorber function for converting the refrigerant vapor evaporated during cooling operation into the concentrated solution and converting it into a rare solution, and condenser function and condensation for condensing refrigerant vapor separated from the generator during heating operation. 1. An absorption type air conditioner comprising: a first external cylinder having an absorber function for allowing a refrigerant to be absorbed into a concentrated solution and converting it into a rare solution; and a second external cylinder for precooling the agricultural solution separated from the generator during a cooling operation. The refrigerant vapor separated from the generator is condensed in the inner cylinder in a large area. The heating fins built into the inner cylinder and the agricultural liquid separated from the generator during cooling operation are controlled to cool down while flowing down to the inner wall of the second outer cylinder, so that more refrigerant vapor from the first outer cylinder is applied to the concentrate. And a distribution member disposed on an upper portion of the second outer cylinder to be absorbed.

According to the absorption type air conditioner of the present invention, not only the condensation efficiency of the refrigerant vapor is improved, but also the absorption efficiency of the first external cylinder can be improved, thereby further improving the air conditioning efficiency of the absorption type air conditioner.

1 is a cross-sectional view schematically showing an absorption type air conditioner applied to a conventional example.

2 is a cross-sectional view schematically showing an absorption type air conditioner with a heating fin and a distribution member applied to the present invention.

* Explanation of symbols for main parts of the drawings

10 generator 11 burner means

12: solution pump 20: inner cylinder

21: heating fin 22: branch pipe

23: air cooling fin 24: branch pipe

30: refrigerant liquid distributor 31: air cooling fin

40: first outer cylinder 41: heat transfer pin

50: second outer cylinder 51: distribution member

52: heating fin 60: cold water introduction pipe

61: cold water pipe 62: discharge pipe

70: solution heat exchanger 101: upstream side steam transfer pipe

102: two-way solenoid valve 103: downstream steam transfer pipe

203: upstream first connection pipe 204: three-way solenoid valve

205: downstream first connector 401: second connector

501: Upstream agricultural liquid discharge pipe 502: 3-way solenoid valve

503: downstream concentrated liquid discharge pipe 511: upstream third connection pipe

514: downstream third connector

Hereinafter, an embodiment of the absorption type air conditioner according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view schematically showing an absorption type air conditioner with a heating fin and a distribution member applied to the present invention.

In FIG. 2, reference numeral 10 denotes a generator in which a rare solution having passed through a first external cylinder, which will be described later, is heated by heat generated from the burner means 11 to separate the rare solution into a refrigerant vapor and a concentrated solution at high temperature and high pressure. Let's do it.

In addition, (20) is an inner cylinder having a condenser function for condensing the refrigerant vapor of the high temperature and high pressure supplied from the generator 10 during the cooling operation, it is made of a combination of a plurality of inner cylinders (20a ~ 20d) and the inside In the heat transfer fin 21 is built so that the area of heat transfer of the condensation heat of the refrigerant vapor is increased.

That is, the refrigerant vapor of the high temperature and high pressure separated from the generator 10 includes an upstream steam transfer pipe 101 connected to the generator 10 and a downstream steam transfer pipe in which a two-way solenoid valve 102 is disposed in the middle. It is installed in the vertical direction through the vertical direction 103 and is supplied to the inner cylinder 20 having a condenser function with a heat transfer fin 21 built therein so that the heat of condensation of the refrigerant vapor is easily transferred and radiated therein, and the inner cylinder 20 The heat of condensation of the refrigerant vapor supplied to the heat is more easily transferred through the heat transfer fins 21, thereby condensing the refrigerant vapor more efficiently.

In addition, the lower portion of the inner cylinder 20, the refrigerant vapor supplied to the inner cylinder 20 through the upstream side steam transfer pipe 101 and the downstream side steam transfer pipe 103, a plurality of inner cylinder (20a ~) A plurality of branch pipes 22a to 22d are connected to be supplied to 20d), respectively.

In addition, the branch pipes 22a to 22d have the largest diameters of the branch pipes 22d disposed on the outermost side so that the amount of refrigerant vapor supplied to the plurality of inner cylinders 20a to 20d is constant, and toward the inner side. The diameters of the branch pipes 22c to 22a gradually decrease.

In addition, between the inner cylinder and the inner cylinder is an air cooling fin 23 is built, so that the heat of condensation generated when the refrigerant vapor condensed to each of the inner cylinder (20a to 20d) is easily discharged to the outside.

In addition, the refrigerant condensed in the inner cylinder 20 is supplied to the refrigerant liquid distributor 30 disposed on the upper portion of the first outer cylinder, which will be described later, and between the inner cylinder 20 and the refrigerant liquid distributor 30, The branch pipe 24, the upstream first connecting pipe 203, the three-way solenoid valve 204, the downstream first connecting pipe so that the refrigerant condensed in the inner cylinder 20 is supplied to the refrigerant liquid distributor 30. 205) is excreted.

On the other hand, 40 in the figure is a first outer cylinder having a function of the evaporator and the absorber at the time of cooling and a condenser and the absorber at the time of heating, the inner cylinder 20 on the outside of the inner cylinder (20) Concentric with the vertically installed in the vertical direction, the inner wall is spirally wound around the heat transfer fin 41 is welded and fixed, the upper portion of the condensed refrigerant supplied from the downstream first connecting pipe 205 when cooling A coolant liquid distributor 30 having a siphon structure is supplied horizontally to the upper center of the first outer cylinder 40 in the circumferential direction so as to be supplied to the surface of the cold water pipe 61 inside the first outer cylinder 40. It is installed by the fixing member.

In addition, air cooling fins 31 are incorporated between the first outer cylinder 40 and the second outer cylinder to be described later, and between the inner cylinder 20 and the second outer cylinder to be described later.

In addition, inside the lower first external cylinder 40 of the refrigerant liquid distributor 30, a cold water pipe 61 having one end connected to the cold water introduction pipe 60 is provided from an upper portion of the first external cylinder 40. It is arranged to spiral down to the bottom and spiral down from the point P to the top. The end of the cold water pipe 61 is connected to a discharge pipe 62 which is connected to a heat exchanger in a room (not shown). It is.

In addition, 50 is a second external cylinder having a precooling function for cooling the concentrated solution which has been separated from the generator 10 and passed through the solution heat exchanger 70 during the cooling operation. The solution heat exchanger 70 and the second Between the outer cylinder 50, the upstream side agricultural liquid discharge pipe 501, the three-way solenoid valve 502, the downstream side so that the agricultural solution passing through the solution heat exchanger 70 is supplied to the second outer cylinder 50 The solution discharge pipe 503 is disposed.

In addition, an upper portion of the second outer cylinder 50, a distribution member 51 for controlling the flow of the agricultural liquid so that the agricultural liquid flows down the side wall of the second outer cylinder 50 is mounted, the second outer The heat transfer fin 52 is built in the cylinder 50 so that the concentrated solution flowing down the side wall of the second outer cylinder 50 is easily cooled.

Further, between the second outer cylinder 50 and the first outer cylinder 40, the upstream side so that the agricultural solution cooled in the second outer cylinder 50 is supplied to the first outer cylinder 40. The three connection pipe 511, the pump 512, the two-way solenoid valve 513, and the downstream 3rd connection pipe 514 are arrange | positioned.

On the other hand, in the case of heating operation, the refrigerant vapor of the high temperature and high pressure separated from the generator 10, the upstream side steam transfer pipe 101, the branch pipe 104, the three-way solenoid valve 204, the downstream first connection pipe 205 ) Is supplied to the refrigerant liquid distributor 30 disposed on the upper portion of the first outer cylinder 40.

That is, the branch pipe 104 has one end connected to the three-way solenoid valve 204 and the other end connected to the two-way solenoid valve 102 (that is, the upstream side steam transfer pipe), and the three-way and two-way solenoid valves ( 204) 102 controls the flow of the high-temperature, high-pressure refrigerant vapor separated from the generator 10 in accordance with the user's choice of cooling or heating.

In addition, the solution heat exchanger (70) is a concentrated solution flowing into the second external cylinder (50) from the generator (10) through a canned type solution pump (12), and the first external cylinder (40). In the refrigerant vapor is absorbed by the concentrated solution is converted to heat exchange the rare solution supplied to the generator (10).

On the other hand, (1) and (2) in the drawing, the inner cylinder 20 and the second outer cylinder (2) to detect the temperature of the refrigerant vapor and the concentrated solution in the inner cylinder 20 and the second outer cylinder (50) 50 is respectively disposed in the temperature sensor, (7) is a cooling water pump, the first and second external cylinders 40, 50 and the inner cylinder 20 by the temperature sensor (1) (2) during refrigeration operation When the temperature of the refrigerant vapor, the concentrated solution and the rare solution flowing in the temperature is higher than a predetermined temperature, the cooling water supply pipe is operated by pumping the cooling water 4 stored in the cooling water storage plate 3 by operating by the output signal of the temperature sensor 1 and 2. The air cooling fins 23 and 31 and the heat transfer fins 21 and 52 are cooled by supplying the atomizer 6 through the sprayer 6 and spraying it downward.

In the above description, during the cooling operation, the two-way solenoid valves 102 and 513 are opened, the three-way solenoid valve 204 blocks the branch pipe 104 side, and the three-way solenoid valve 502 is downstream. The third connecting pipe 514 side is blocked.

During the heating operation, the two-way solenoid valves 102 and 513 are shut off, and the three-way solenoid valve 204 opens the downstream first connector pipe 205 and simultaneously upstream first connector pipe 203. The three-way solenoid valve 502 shuts down the downstream agricultural liquid discharge pipe 503 and simultaneously opens the downstream third connection pipe 514 to the on / off of an operation control switch (not shown). Operate accordingly.

Meanwhile, in the figure, reference numeral 81 is a cooling fan, and 82 is an inlet formed so that air in the room is introduced by the cooling fan 81 into the inlet. Through 82), cooling air flows in and discharges heat of condensation and heat of absorption to the outside.

Next, the effect of the embodiment of the absorption type air conditioner according to the present invention configured as described above will be described.

First, when the cooling operation is performed, the rare solution is separated into a high temperature and high pressure refrigerant vapor and a concentrated solution by the heat of the burner means 11 of the generator 10, and the high temperature and high pressure refrigerant vapor separated from the generator 10 The upstream side steam transfer pipe 101 is separated.

At this time, the two-way solenoid valve 102 connected to the upstream side steam transfer pipe 101 is open and the self-contained pipe 104 side of the three-way solenoid valve 204 is blocked, so that the upstream steam transfer pipe 101 is closed. The refrigerant vapor moved to the branch pipe 22 is supplied through the two-way solenoid valve 102.

In addition, the refrigerant vapor supplied to the branch pipe (22) is introduced into the inner cylinder 20, the refrigerant vapor introduced into the inner cylinder 20 and the heat transfer fin (21) embedded in the inner cylinder (20) and When the temperature of the refrigerant vapor is connected and condensed, the heat of condensation generated when the refrigerant vapor is condensed is discharged to the outside by the air cooling fins 23 respectively disposed between the inner cylinders 20a to 20d.

That is, the refrigerant vapor supplied from the generator 10 to the inner cylinder 20 is easily condensed by the heat of the refrigerant steam by the heat transfer fins 21 embedded in the inner cylinder 20, thereby condensing the refrigerant vapor. Is condensed more effectively, and the heat of condensation generated when the refrigerant vapor condenses is discharged to the outside by the air cooling fins 23.

In addition, the refrigerant condensed in the inner cylinder 20 is collected in the upstream first connecting pipe 203 through the bottom surface and the branch pipe 24 of the inner cylinder 20, and the upstream first connecting pipe 203. The condensed refrigerant collected in) is introduced into the refrigerant liquid distributor 30 disposed on the upper portion of the first outer cylinder 40 through the three-way solenoid valve 204 and the downstream first connecting pipe 205.

In addition, the refrigerant flowing into the refrigerant liquid distributor 30 may include a main portion (not shown) of the siphon member (not shown) disposed over each of the leading edges of both side wall portions of the refrigerant liquid distributor 30. Section and the space formed by the side walls of the inner and outer side of the coolant liquid distributor 30, overflowed by siphon action, and dropped to the surface of the cold water pipe 61 wound and disposed with a predetermined gap in a spiral parallel structure. And it is evaporated to cool the water flowing into the cold water pipe 61 through the cold water introduction pipe (60).

That is, the coolant flowing into the coolant liquid distributor 30 flows into the first outer cylinder 40 to be in contact with the surface of the cold water pipe 61 disposed in the first outer cylinder 40 to evaporate the cold water. Since the water flowing inside the tube 61 is cooled coolly, the cooling output is generated through a heat exchanger (not shown).

On the other hand, the high temperature and high pressure concentrated solution separated from the generator 10 is supplied to the solution heat exchanger 70 by the solution pump 12, the high temperature and high pressure concentrated solution supplied to the solution heat exchanger 70 is Heat exchanged with the rare solution supplied to the generator 10 through the first outer cylinder (40).

In addition, the agricultural liquid heat-exchanged in the solution heat exchanger 70 is supplied to the second outer cylinder 50 through the upstream agricultural liquid discharge pipe 501, the three-way solenoid valve 502, the downstream agricultural liquid discharge pipe 503. In this case, the agricultural liquid supplied to the second outer cylinder 50 flows along the inner wall of the second outer cylinder 50 by the distribution member 51 disposed on the upper portion of the second outer cylinder 50. At the same time as it is lowered, it is easily cooled by the heat transfer fins 52 embedded in the second outer cylinder 50.

That is, the concentrated solution supplied to the second outer cylinder 50 is more effectively cooled by the distribution member 51 and the heat transfer fins 52.

In addition, the agricultural solution cooled in the second outer cylinder 50 is made through the upstream third connection pipe 511, the pump 512, the two-way solenoid valve 513, and the downstream third connection pipe 514. It is supplied to one external cylinder 40.

In addition, the agricultural solution supplied to the first outer cylinder 40 flows down the inner wall of the first outer cylinder 40 while absorbing the refrigerant vapor evaporated from the surface of the cold water pipe 61 as a rare solution. Is converted.

At this time, the concentrated solution is supplied to the first outer cylinder 40 in a cooler state by the second outer cylinder 50 so that more refrigerant vapor is absorbed in the agricultural solution.

That is, the absorption efficiency of the first external cylinder 40 is improved, and the ash solution converted from the first external cylinder 40 becomes a soft solution.

In addition, the rare solution whose concentration is converted in the first external cylinder 40 is supplied to the generator 10 through the second connecting tube 401 and the solution heat exchanger 70.

In addition, the rare solution supplied to the generator 10 is a large amount of refrigerant vapor is separated and circulated by the heat generated from the burner means (11).

That is, more refrigerant vapor is separated from the generator 10 and supplied to the inner cylinder 20 having a condenser function, and more refrigerant vapor supplied to the inner cylinder 20 is supplied to the inner cylinder 20. More efficiently condensed by the built-in heat transfer fin 21, the refrigerant condensed in the inner cylinder 20 is more efficient by the evaporation action in the first outer cylinder 40 having the evaporator and absorber functions more efficiently The cooling output of can be obtained.

The following describes heating operation. In the heating operation, the cooling fan 81 is driven and spraying of the cooling water sprayed from the sprayer 6 is stopped and at the same time, the refrigerant steam of the high temperature and high pressure separated from the generator 10 is transferred to the upstream side steam transfer pipe 101. Supplied.

At this time, the two-way solenoid valve 102 connected to the upstream side steam transfer pipe 101 is blocked, and at the same time, the upstream side first connecting pipe 203 connected to the three-way solenoid valve 204 is blocked, and the branch pipe 104 is disposed. ) And the downstream first connecting pipe 205 is opened.

That is, the high-temperature, high-pressure refrigerant vapor distributed from the generator 10 passes through the upstream side steam transfer pipe 101, the branch pipe 104, the three-way solenoid valve 204, and the downstream side first connection pipe 205. 1 is supplied to the coolant liquid distributor 30 disposed in the outer cylinder 40.

In addition, the high-temperature, high-pressure refrigerant vapor supplied to the first outer cylinder 40 flows down from the upper portion of the first outer cylinder 40 to the cold water pipe disposed in the first outer cylinder 40 ( On the surface of 61) it condenses with the heat of condensation.

At this time, the water flowing in the cold water pipe 61 through the cold water introduction pipe 60 is heated by the condensation heat of the refrigerant steam, thereby obtaining a heating output from a heat exchanger (not shown).

On the other hand, the concentrated solution separated from the standing generator 10 is heat-exchanged in the solution heat exchanger 70 and then moved to the upstream side concentrated liquid discharge pipe 501.

At this time, the three-way solenoid valve 502 connected to the upstream side concentrated liquid discharge pipe 501 blocks the downstream side concentrated liquid discharge pipe 503 and opens the downstream third connection pipe 514.

That is, the concentrated solution separated from the generator 10 is the first outside through the solution heat exchanger 70, the upstream concentrated liquid discharge pipe 501, the three-way solenoid valve 502, the downstream third connecting pipe 514. It is supplied to the cylinder 40.

In addition, the concentrated solution supplied to the first outer cylinder 40 absorbs the refrigerant condensed in the first outer cylinder 40 and is converted into a rare solution, and the rare solution is converted into a second connection pipe 401 and a solution. The heat exchanger 70 is supplied to the generator 10.

That is, the high temperature and high pressure refrigerant vapor separated from the generator 10 is supplied to the first external cylinder 40 having a condenser and an absorber function during heating to condense on the surface of the cold water pipe 61, and cold water as the heat of condensation at this time. The heating output can be obtained by heating the water flowing in the pipe 61.

As described above, according to the absorption type air conditioner according to the present invention, the heat transfer fin is embedded in the inner cylinder having the condenser function to further improve the condensation efficiency of the refrigerant vapor, as well as the distribution member and the heat transfer fin in the second outer cylinder. It is possible to improve the cooling efficiency of the absorption type air conditioner by improving the absorption efficiency of the first outer cylinder having an absorber function by allowing the agricultural liquid to be cooled more effectively.

Claims (2)

A generator that heats the ash solution and separates it into a high-temperature, high-pressure agricultural solution and a refrigerant vapor, and an internal cylinder penetrated vertically up and down to condense with external air while the refrigerant vapor separated and transferred from the generator flows in a predetermined direction; A first outer cylinder which is formed to surround the outside of the inner cylinder and penetrates to the outer surface of a cold water pipe installed to be connected to a heat exchanger therein so as to drop the refrigerant vapor condensed in the generator, and the outer of the first outer cylinder In the absorption type air-conditioner composed of a second outer cylinder penetrated to pre-cool the agricultural liquid separated from the generator and transported from the generator, the heat transfer built into the inner cylinder to increase the heat exchange area of the refrigerant vapor transferred to the inner cylinder A pin and a concentrated solution that is separated from the generator and falls from an upper portion of the second outer cylinder. An absorption type air conditioner, comprising: a distribution member disposed on an upper portion of the second outer cylinder to cool down while flowing down the inner wall of the second outer cylinder. The heat sink according to claim 1, wherein the second subcylinder has a heat transfer fin built in to increase the heat exchange area of the agricultural liquid flowing along the inner wall.