JPH09170852A - Absorption type refrigerating unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the space for a refrigerant cooler and a refrigerant spraying tool to be fitted to an evaporator, and to smoothly flow the refrigerant evaporated by the evaporator into an absorber. SOLUTION: In a absorption refrigerating unit 100 provided with a refrigerant cooler 6 in which the liquid refrigerant is fed into an evaporator 4 from a condenser 5 through a liquid refrigerant flow passage L5, an evaporation coil 41 which is installed downward thereof and on the surface of which the liquid refrigerant is sprayed, and a liquid refrigerant spraying tool 7 which is installed between the refrigerant cooler 6 and the evaporation coil 41, and sprays the liquid refrigerant flowing down from the refrigerant cooler 6 on an upper end part of the evaporation coil 41, the liquid refrigerant spraying tool 7 is integrated with a lower part of the refrigerant cooler 6. The refrigerant cooler 6 is annular-cylindrical, and the liquid refrigerant spraying tool 7 is formed of an annular dish-shaped container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption type refrigerating apparatus which uses an aqueous solution such as lithium bromide as an absorption liquid.

[0002]

2. Description of the Related Art In an absorption type refrigeration system, in a regenerator,
The low-concentration absorbent is boiled by heating with a heat source such as a burner, and separated into a high-concentration absorbent and a refrigerant. This refrigerant is condensed in a condenser for promoting liquefaction to generate a refrigerant liquid. A cooling coil through which cooling water flows is arranged inside the condenser, and the cooling coil is connected to a cooling tower (cooling tower) for exhaust heat.

In the evaporator, the refrigerant liquid is sprayed on the surface of the evaporation coil through which cold / hot water as a heat medium for air conditioning flows. The sprayed refrigerant liquid evaporates, takes heat of vaporization, and cools cold / hot water. A refrigerant cooler for self-cooling the refrigerant liquid supplied from the condenser is installed above the evaporation coil in the evaporator. Below the refrigerant cooler, there is provided a refrigerant liquid sprinkler for evenly dropping an appropriate amount of the refrigerant liquid onto the upper end of the evaporation coil.

The refrigerant cooler is connected to a refrigerant liquid receiver provided below the cooling coil in the condenser by a steady refrigerant liquid flow path through which the refrigerant liquid flows down during steady operation. The refrigerant cooler is connected to the bottom of the condenser by a temporary refrigerant liquid passage with a refrigerant solenoid valve through which the refrigerant liquid temporarily flows down at the time of starting.

The absorber is provided with a cooling coil through which cooling water for exhaust heat flows, and a high-concentration absorbent spraying device for spraying the high-concentration absorbent onto the cooling coil. It is connected to a cooling tower (cooling tower) for heat. The refrigerant evaporated in the evaporator is absorbed in the high-concentration absorption liquid scattered on the surface of the cooling coil in the absorber. At this time, absorption heat is generated, so that cooling water for exhaust heat is circulated through the cooling tower to exhaust heat. The absorption liquid that has absorbed the refrigerant and has been reduced in concentration is returned to the regenerator by the absorption liquid pump provided in the low-concentration absorption liquid flow path that connects the bottom of the absorber and the regenerator.

[0006]

A large-scale model of this absorption refrigeration system has been put into practical use, but there is an increasing demand for downsizing from the viewpoint of diversification of energy sources and application to a home air-conditioning system. There is. An object of the present invention is to provide an absorption type refrigerating apparatus capable of downsizing, and in particular, it is possible to reduce the space of a refrigerant cooler and a refrigerant liquid spraying tool attached to an evaporator and to evaporate with the evaporator. The present invention is to provide an absorption type refrigerating device which can smoothly flow the generated refrigerant into the absorber.

[0007]

According to the present invention, a low concentration absorbent is heated in a regenerator to be separated into a high concentration absorbent and a refrigerant, and liquefaction of the refrigerant separated in the regenerator is promoted in a condenser. , Evaporating the refrigerant liquid of the refrigerant liquefied in the evaporator to cool the cold / hot water, absorbing the refrigerant to the high-concentration absorption liquid in the absorber, and absorbing the refrigerant vapor to regenerate the absorption liquid having a low concentration In the absorption refrigeration device returning to the container, the evaporator is a refrigerant cooler to which a refrigerant liquid is supplied from the condenser through a refrigerant liquid flow path, and is installed below the refrigerant cooler, and is provided on the surface. An evaporation coil through which the cold and hot water flows while being sprayed with a refrigerant liquid, is installed in the middle of the refrigerant cooler and the evaporation coil, and the refrigerant liquid flowing down from the refrigerant cooler is placed at the upper end of the evaporation coil. Equipped with a refrigerant liquid sprayer for spraying In the absorption refrigerating apparatus, characterized by being formed integrally with the refrigerant liquid spraying device to lower the coolant cooler.

According to a second aspect of the present invention, the refrigerant cooler has an annular tubular shape, and the refrigerant liquid spraying tool has an annular dish shape. According to a third aspect of the present invention, the refrigerant cooler is formed in an annular tubular shape by joining an annular lid-shaped lid body to an annular dish-shaped bottom plate. In the configuration according to claim 4, the refrigerant liquid spraying device is arranged below the bottom plate, and is formed from an annular dish-shaped container in which an outer peripheral edge or an inner peripheral edge is joined to an outer peripheral edge or an inner peripheral edge of the bottom plate. It is characterized by

According to a fifth aspect of the present invention, the condenser includes a cooling coil through which cooling water flows, and a coolant liquid receiver installed below the cooling coil, and the coolant liquid flow path comprises: A steady refrigerant liquid flow path connecting the refrigerant liquid receiver and the refrigerant cooler, and a temporary refrigerant liquid flow path with a refrigerant solenoid valve connecting the bottom of the condenser and the refrigerant cooler, To do.

[0010]

In this absorption refrigerating apparatus, the refrigerant cooler installed on the upper part of the evaporator and the refrigerant liquid sprinkler under the refrigerant cooler are integrally formed, so that they are separated from each other. Compared with the case of the above, the mounting space is excellent, the mounting space can be made compact, and the size of the refrigeration system can be made compact.

According to the second aspect of the present invention, by forming the refrigerant cooler and the refrigerant liquid spraying tool in an annular shape, the vertical dimension can be minimized. With the configurations of claims 3 and 4, it is easy to manufacture the refrigerant cooler or the refrigerant liquid sprinkler.

[0012]

1 shows an absorption type air conditioner, which comprises an absorption type refrigeration system (outdoor unit) 100, an indoor unit 200, and a control unit 300. The outdoor unit 100 includes a refrigerator main body A and a cooling tower (cooling tower) CT arranged side by side in a flat box-shaped casing K. The refrigerator body A is
Regenerator C in which a low temperature regenerator 2 is connected above the high temperature regenerator 1.
A gas burner B as a heat source is arranged below the high temperature regenerator 1. An absorber 3 and an evaporator 4 are provided on the outer periphery of the low temperature regenerator 2, and a condenser 5 is installed above the evaporator 4.

The high-temperature regenerator 1 is heated by the gas burner B to boil the low-concentration absorbent inside the heating tank 1.
1 and a medium-concentration absorbent separation column 12 that extends upward from the top of the heating tank 11 and separates the refrigerant vapor and the medium-concentration absorbent that has been concentrated by evaporation of the refrigerant. A vertical cylindrical airtight refrigerant recovery tank 10 for recovering the refrigerant vapor is provided on the outer periphery of the medium-concentration absorbent separation column 12.

The low temperature regenerator 2 is a vertical cylindrical low temperature regenerator case 2 installed eccentrically on the outer periphery of the refrigerant recovery tank 10.
Has zero. The low temperature regenerator case 20 is provided with a refrigerant vapor outlet 21 on the ceiling and has a top portion connected to the bottom portion 121 of the medium concentration absorbent separation column 12 by the medium concentration absorbent flow path L1. Inside the low temperature regenerator case 20, a medium-concentration absorption liquid is supplied from the bottom portion 121 via the heat exchanger H due to a pressure difference, re-boiling using the outer wall of the refrigerant recovery tank 10 as a heat source, and refrigerant vapor and high-concentration absorption liquid. And separated.

A vertical cylindrical airtight evaporation / absorption case 30 is concentrically arranged on the outer periphery of the low temperature regenerator case 20, and a condenser case 50 is provided above the evaporation / absorption case 30.
Are connected. The refrigerant recovery tank 10, the low temperature regenerator case 20, and the evaporation / absorption case 30 are integrally welded to the bottom plate 13 to form an airtight container. The upper part of the low temperature regenerator case 20 serves as a gas-liquid separating section 22, which communicates with the inside of the condenser case 50 via the refrigerant vapor outlet 21 and the gap 53.

In the absorber 3, a cooling coil 31 wound in a vertical cylindrical shape is arranged in an inner portion of the evaporation / absorption case 30, and a high-concentration absorption liquid is sprayed above the cooling coil 31. The high-concentration absorbent sprayer 32 is attached. The absorber 3 is used during the cooling operation, and the exhaust heat cooling water cooled by the cooling tower CT circulates in the cooling coil 31.

High-concentration absorbent receiving part 23 of low-temperature regenerator 2
Is the high-concentration absorbent liquid flow path L2 via the heat exchanger H,
It is connected to the high-concentration absorbent sprayer 32. In the high-concentration absorbent sprayer 32, the high-concentration absorbent flows in due to the pressure difference, and the high-concentration absorbent that has flowed in is sprayed onto the upper end of the cooling coil 31 and adheres to the surface of the cooling coil 31 to form a film. , Gravity flows down. The bottom portion 33 of the absorber 3 and the bottom portion of the heating tank 11 are connected by a heat exchanger H and a low-concentration absorbent flow path L3 equipped with an absorbent pump P1.

The evaporator 4 is provided with a vertical cylindrical partition wall 40 on the outer circumference of the cooling coil 31 in the evaporation / absorption case 30, and cold / hot water for cooling / heating flows inside the partition wall 40. It has a configuration in which a vertical cylindrical evaporation coil 41 is arranged. The refrigerant cooler 6 is installed above the evaporation coil 41, and the refrigerant liquid sprinkler 7 is installed below the refrigerant cooler 6.

The bottom portion 4A of the evaporator 4 has a heating solenoid valve 42.
Is connected to the bottom portion 121 of the medium-concentration absorbent separation column 12 by the heating absorbent flow path L4. The partition wall 40
Has a function of preventing the absorbent from splashing and adhering to the evaporation coil 41 of the evaporator 4 and lowering the evaporation ability when the absorbent is dropped from the high-concentration absorbent sprayer 32 onto the cooling coil 31. . Therefore, the upper end of the partition wall 40 is set higher than the positions where the cooling coil 31 and the evaporation coil 41 are arranged.

Both ends of the evaporation coil 41 are provided with a cold / hot water flow path 46.
Is connected to the indoor unit 200, and cooling / heating water for cooling / heating is circulated in the indoor unit 200 by the cooling / heating pump P3. In this embodiment, the lower end of the partition wall 40 contacts the bottom plate 13, and the upper end of the partition wall 40 serves as a flow port 40a through which the evaporated refrigerant flows from the evaporator 4 to the absorber 3.

The condenser 5 is provided inside the condenser case 50.
A cooling coil 51 in which the cooling water for exhaust heat cooled by the cooling tower CT circulates is arranged, and a coolant liquid receiver 52 for receiving the condensed coolant liquid is attached below the cooling coil 51. Become. The condenser case 50 communicates with the bottom portion 10A of the refrigerant recovery tank 10 through the refrigerant liquid flow path L5 and also communicates with the low temperature regenerator 2 through the refrigerant vapor outlet 21 and the gap 53, both of which cause a refrigerant difference due to a pressure difference. Is supplied. The supplied refrigerant is cooled by the cooling coil 51 and liquefied.

The refrigerant liquid receiver 52 and the refrigerant cooler 6 have a steady refrigerant liquid flow path L through which the steady refrigerant liquid flows down during steady operation.
Connected by 6. Also, the bottom 5A of the condenser 5
And the refrigerant cooler 6 are connected by a temporary refrigerant liquid flow path L7 for temporarily flowing down the refrigerant liquid at the start of operation. A refrigerant solenoid valve 54 is provided in the temporary refrigerant liquid flow path L7 and is opened / closed by the output of the control device 300. The cooling coil 31 is connected to the cooling coil 51, and further connected to the cooling tower CT by a cooling water circulation path 34.

The refrigerant cooler 6 has an annular shape whose outer circumference is along the inner circumference of the evaporation / absorption case 30 and whose inner diameter is close to the outer diameter of the partition wall 40. As shown in FIGS. 2 to 4, in the refrigerant cooler 6, the outer peripheral side portion 6A has a substantially rectangular cross section, and the inner peripheral side portion 6B has a substantially trapezoidal cross section in which the height decreases toward the inner periphery. . In this embodiment, the refrigerant cooler 6 includes an annular dish-shaped bottom plate 61 and an annular lid-shaped lid body 6 which are both press-molded.
2 is abutted with each other, and the outer peripheral edge and the inner peripheral edge are joined by welding, brazing or the like.

As shown in FIG. 3, the bottom plate 61 has an outer peripheral edge 61.
1, an outer peripheral inclined portion 612 whose depth gradually increases toward the inside,
It is composed of a flat plate-shaped bottom portion 613, an inner peripheral inclined portion 614 whose depth gradually decreases toward the inside, and an inner peripheral edge 615. As shown in FIG. 4, the bottom portion 613 has a refrigerant liquid inlet (6
27, 628) corresponding to the upward bulges 616, 61
7 are provided so as to face each other, and a refrigerant liquid outlet 618 is provided at the center of the bulging portions 616, 617 at the center of the bulging portion downward,
619 is formed.

The depth of the bottom portion 613 gradually increases from the bulging portion 616 toward the refrigerant liquid outlets 618 and 619, and the bulging portion 61 is formed.
The depth is gradually increased from 7 to the refrigerant liquid outlets 618 and 619. As a result, the refrigerant liquid smoothly flows toward the refrigerant liquid outlets 618 and 619.

The lid 62 includes an outer peripheral edge 621 and an outer peripheral cylindrical surface portion 6.
22, a flat-plate-shaped ceiling portion 623, a tapered surface portion 624 that gradually decreases in height in a tapered shape, an inner peripheral cylindrical surface portion 625, and an inner peripheral edge 626, and an outer peripheral edge 621 and an outer peripheral edge 611, and an inner peripheral edge 626 and an inner peripheral edge 615. And are joined by welding, brazing, or the like.

A stationary refrigerant liquid inlet pipe 627 is joined to the ceiling portion 623 at a position corresponding to the upward bulging portion 616 provided on the bottom plate 61 by welding, brazing, etc. The temporary refrigerant liquid inlet pipe 628 is joined to the position corresponding to the upward bulging portion 617 by welding, brazing, or the like.

As shown in FIGS. 3 and 4, the refrigerant liquid outlet 61
The taper surface portion 624 located above 8, 619 has
Refrigerant vapor outflow window 63 cut in a U shape and bent is 6
They are lined up one by one. The refrigerant vapor outflow window 63 may be a punched hole, and a desired shape can be adopted.

In this way, by providing the refrigerant vapor outflow window 63 above the refrigerant liquid outlets 618 and 619, the refrigerant liquid flowing from the refrigerant liquid inlet pipes 627 and 628 repeatedly boils and self-cools, and the refrigerant liquid outlet 618. , 619, a low-temperature refrigerant liquid having a temperature lowering while maintaining a liquid phase is generated. If the refrigerant vapor outflow window 63 is provided in the vicinity of the refrigerant liquid inlet pipes 627 and 628, the refrigerant vapor of the boiled refrigerant liquid evaporates and absorbs before efficiently cooling (self-cooling) the refrigerant liquid. It scatters inside, and the production efficiency of the low-temperature refrigerant liquid decreases.

The refrigerant liquid sprinkler 7 is an annular dish-shaped container 70.
About 30 pieces are dispersedly attached to the inner circumference of the container 70, and the refrigerant liquid lower plate 7 for sucking up the refrigerant liquid in the container 70 by the surface tension and dropping it onto the upper end of the evaporation coil 41.
1 (see FIGS. 2 and 3). Torus-shaped container 70
Is composed of an outer peripheral edge 72, an outer peripheral cylindrical surface portion 73, a flat bottom plate 74, and an inner peripheral inclined portion 75 whose depth gradually decreases toward the inside. A temperature sensor plug 76 for detecting the temperature of the refrigerant liquid is attached to the outer peripheral cylindrical surface portion 73 corresponding to the refrigerant liquid outlet 618 of the bottom plate 61.

The container 70 is attached to the refrigerant cooler 6 by
The outer peripheral edge 72 is overlapped with the lower surface of the outer peripheral edge 611 of the bottom plate 61 of the refrigerant cooler 6 and joined by welding, brazing or the like. This joining is performed by the outer peripheral edge 621 of the lid 62 and the bottom plate 6.
The outer peripheral edge 611 and the outer peripheral edge 72 of one may be welded or brazed simultaneously. The outer peripheral edge 72 and the outer peripheral edge 611,
Method of joining with 621 and inner peripheral edge 615 and inner peripheral edge 626
As a method of joining with and, a desired joining means such as bending, caulking, and fastening with fastening means such as a screw can be adopted.

The coolant droplet lower plate 71 is provided with a bulging groove in the center thereof, flows from the upper surface of the bottom plate 74, which is the deepest bottom of the container 70, around the inner peripheral edge 77 to the lower surface of the bottom plate 74, and further hangs downward. Forming a road. When the coolant liquid is present in the container 70, the coolant liquid droplet lower plate 71 sucks up the coolant liquid by the surface tension of the gap between the coolant liquid droplet lower plate 71 and the inner peripheral inclined portion 75,
It is collected in the center and dropped onto the evaporation coil 41 below by gravity.

The refrigerant cooler 6 and the refrigerant liquid sprinkler 7 operate as follows. The refrigerant condensed and liquefied in the condenser 5 is collected in the refrigerant liquid receiver 52 installed below the cooling coil 51, and the overflowed portion is collected in the bottom portion 5A of the condenser 5. The refrigerant liquid in the refrigerant liquid receiver 52 is the steady refrigerant liquid flow path L6.
From the stationary refrigerant liquid inflow pipe 627 into the refrigerant cooler 6 in the evaporator 4.

Further, at the start of operation, the refrigerant liquid receiver 5
When the refrigerant liquid is not accumulated in 2, the refrigerant electromagnetic valve is temporarily opened to allow the refrigerant liquid accumulated in the bottom portion 5A of the condenser 5 to enter the refrigerant cooler through the temporary refrigerant liquid passage L7. It is made to flow down from the temporary refrigerant liquid inlet pipe 628. The atmospheric pressure in the evaporator 4 is lower than that in the condenser 5 because the refrigerant vapor is absorbed in the absorbers 3 arranged in the same evaporation / absorption case 30. When the operation is started, the refrigerant liquid in the bottom portion 5A of the condenser 5 is made to flow down because only the absorption is performed and the pressure inside the evaporation / absorption case 30 becomes too low, the boiling point becomes too low, and the refrigerant becomes liquid phase in the evaporator 4. This is to prevent the state from not being maintained.

As described above, in the refrigerant cooler 6, a part of the refrigerant liquid flowing down is boiled, and the heat of vaporization cools the remaining refrigerant liquid to a low temperature to maintain the liquid phase. The vaporized refrigerant is discharged from the refrigerant vapor outflow window 63 into the evaporation / absorption case 30. The low-temperature refrigerant liquid which is cooled and maintains the liquid phase flows down from the refrigerant liquid outlets 618 and 619 to the lower refrigerant liquid spraying tool 7 and is sprayed from the cooling liquid droplet lower plate 71 onto the lower evaporation coil 41.

The refrigerant liquid spraying device 7 drops the refrigerant liquid on the evaporation coil 41 during the cooling operation. The dropped refrigerant is
The surface tension wets the surface of the evaporation coil 41 to form a film, which descends due to the action of gravity, and the evaporation coil 41 deprives the evaporation heat of the evaporation heat in the low-pressure evaporation / absorption case 30 to evaporate. The cold / hot water for cooling / heating flowing in the inside 41 is cooled.

The vaporized refrigerant mainly passes through the gap between the upper end of the partition wall 40 and the lower surface of the refrigerant liquid sprinkler 7, and the refrigerant vapor is absorbed and flows into the absorber 3 having a low pressure. In this case, since the inner peripheral inclined portion 75 of the container 70 is inclined, the gap can be increased and the vaporized refrigerant can flow smoothly.

During the cooling operation, the cooling water pump P2 circulates the waste heat cooling water in the order of cooling tower CT → cooling coil 31 → cooling coil 51 → cooling tower CT. The absorption liquid is
The high-temperature regenerator 1 → low-temperature regenerator 2 → absorber 3 → absorbent liquid pump P 1 → high-temperature regenerator 1 circulates in the order of the absorption liquid pump P 1 and the pressure difference.

FIG. 5 shows another embodiment of the refrigerant liquid sprinkler 7. In this embodiment, instead of the coolant droplet lower plate 71, spring pins 78 arranged in a row at a predetermined interval on the bottom plate 74 are used to drop the coolant liquid. The same operation and effect can be obtained in this embodiment.

Although the gas burner B is used as the heating source in the above embodiment, other heat sources such as an electric heater and a petroleum burner or exhaust heat of a heat engine may be used. Further, although the outer peripheral edge 611 of the bottom plate 61 of the refrigerant cooler 6 and the outer peripheral edge 72 of the refrigerant liquid disperser 7 are joined, the inner peripheral edge 615 of the bottom plate 61 of the refrigerant cooler 6 and the inner peripheral edge of the refrigerant liquid disperser 7 are The periphery 77 may be joined.

FIG. 6 shows another embodiment. In this embodiment, in the high temperature regenerator 1, a pumping pipe 14 extends upward from the top of a heating tank 11, and a medium-concentration absorbent separating column 12 is provided on the outer periphery of the pumping pipe 14. The refrigerant cooler-integrated refrigerant liquid sprinkler of the present invention can be applied to this type of absorption refrigeration system.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of an air conditioner using an absorption refrigeration system.

FIG. 2 is a perspective view of a refrigerant cooler and a refrigerant liquid sprinkler.

FIG. 3 is a cross-sectional view of a refrigerant cooler and a refrigerant liquid sprinkler.

FIG. 4 is an assembly diagram of a refrigerant cooler and a refrigerant liquid sprinkler.

FIG. 5 is a perspective view of a refrigerant cooler and a refrigerant liquid spraying device according to another embodiment.

FIG. 6 is a conceptual diagram of a cooling / heating apparatus using an absorption refrigeration apparatus according to another embodiment.

[Explanation of symbols]

 1 High Temperature Regenerator 2 Low Temperature Regenerator 3 Absorber 4 Evaporator 5 Condenser 6 Refrigerant Cooler 7 Refrigerant Liquid Disperser 31 Cooling Coil 41 Evaporation Coil 51 Cooling Coil 52 Refrigerant Liquid Receptor 54 Refrigerant Solenoid Valve 61 Bottom Plate 62 Lid 70 Toroidal container 72 Outer peripheral edge 74 Bottom plate 77 Inner peripheral edge 100 Absorption type refrigerating device 200 Indoor unit 300 Control device L5 Refrigerant liquid flow path L6 Steady refrigerant liquid flow path L7 Temporary refrigerant liquid flow path

Claims (5)

[Claims] 1. A refrigerant which is heated in a regenerator to separate a low-concentration absorbent into a high-concentration absorbent and a refrigerant, a condenser promotes liquefaction of the refrigerant separated in the regenerator, and a liquefied refrigerant in an evaporator. In the absorption type refrigerating device that cools the cold and hot water by evaporating the refrigerant liquid, absorbs the refrigerant in the high-concentration absorption liquid in the absorber, and absorbs the refrigerant vapor to reduce the concentration of the absorption liquid to the regenerator. And wherein the evaporator is installed below the refrigerant cooler to which the refrigerant liquid is supplied from the condenser through the refrigerant liquid flow path, and the refrigerant liquid is sprinkled on the surface of the evaporator. An evaporation coil through which the hot and cold water flows, a refrigerant liquid spraying device that is installed in the middle of the refrigerant cooler and the evaporation coil, and sprays the refrigerant liquid flowing down from the refrigerant cooler to the upper end of the evaporation coil. In absorption refrigeration equipment equipped with Absorption refrigerating apparatus, characterized in that integrally formed with the coolant liquid sprayed member to the lower of the refrigerant cooler. 2. The absorption refrigerating device according to claim 1, wherein the refrigerant cooler has an annular tubular shape, and the refrigerant liquid spraying tool has an annular dish shape. 3. The refrigerant cooler according to claim 2,
An absorption type refrigerating apparatus, characterized in that an annular lid-like bottom plate is joined to an annular lid-like lid to form an annular cylinder. 4. The annular dish-shaped container according to claim 3, wherein the refrigerant liquid spraying device is arranged below the bottom plate and has an outer peripheral edge or an inner peripheral edge joined to the outer peripheral edge or the inner peripheral edge of the bottom plate. An absorption type refrigeration system comprising: 5. The condenser according to claim 1, wherein the condenser includes a cooling coil through which cooling water flows, and a refrigerant liquid receiver installed below the cooling coil, wherein the refrigerant liquid flow path includes the refrigerant. Absorption characterized in that it consists of a steady refrigerant liquid flow path connecting the liquid receiver and the refrigerant cooler, and a temporary refrigerant liquid flow path with a refrigerant solenoid valve connecting the bottom of the condenser and the refrigerant cooler. Freezer.