JP2994253B2 - Absorption air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption type air conditioner capable of cooling a room using an absorption type refrigeration cycle, and more particularly to a technique for extracting non-condensable gas in the absorption type refrigeration cycle.

[0002]

2. Description of the Related Art An absorption refrigeration cycle uses a highly corrosive absorption liquid. Therefore, the absorption refrigeration cycle generates insoluble non-condensable gas such as hydrogen gas by corrosion. The non-condensable gas generated in the absorption refrigeration cycle is gradually accumulated in the absorber having the lowest internal pressure in the absorption refrigeration cycle. Therefore, the internal pressure of the absorber and the evaporator increases due to the presence of the non-condensable gas. As a result, there arises a problem that the boiling point of the refrigerant in the evaporator rises, the evaporation ability decreases, and the refrigeration capacity of the absorption refrigeration cycle decreases.

[0003] Therefore, conventionally, there has been proposed an air extraction device for extracting non-condensable gas generated in the absorption refrigeration cycle from the absorption refrigeration cycle. This bleeding device separates the non-condensable gas (including the vaporized refrigerant) extracted from the absorption refrigeration cycle and the absorption liquid from the auxiliary absorber, and separates the non-condensable gas and the absorption liquid discharged from the auxiliary absorber. And a non-condensing tank for storing the non-condensable gas separated by the gas-liquid separator.

[0004] As shown in FIG.
A gas introduction passage 101 for introducing non-condensable gas in the absorption refrigeration cycle together with the vaporized refrigerant; and an absorption liquid introduction passage 10 for introducing the absorption liquid in the absorption refrigeration cycle.
2 is provided. In addition, the auxiliary absorber 100 is provided with a gas-liquid discharge passage 1 for allowing the gas and the absorbing liquid introduced therein to flow alternately.
03. Further, the auxiliary absorber 100 itself had a container shape such as a cylindrical shape or a box shape.

[0005]

The vaporized refrigerant sucked into the auxiliary absorber 100 together with the non-condensable gas is absorbed by the absorbing liquid supplied into the auxiliary absorber 100 and discharged from the gas-liquid discharge passage 103. Only non-condensable gas is used. Then, when the vaporized refrigerant is absorbed by the absorption liquid in the auxiliary absorber 100, absorption heat is generated. Here, the conventional auxiliary absorber 100 was installed outside the absorption refrigeration cycle. Therefore, the cooling water pipe 1
No. 04 is provided so as to stably remove the heat of absorption generated by the auxiliary absorber 100, thereby preventing the absorption liquid from absorbing the vaporized refrigerant.

Further, since the conventional auxiliary absorber 100 is installed outside the absorption refrigeration cycle, the gas introduction passage 101, the absorption liquid introduction passage 102, the gas-liquid discharge passage 103 and the like are welded to the auxiliary absorber 100 by welding. It is necessary to join the cooling water piping 104 to the auxiliary absorber 100 by brazing. Therefore, it is difficult to manufacture the auxiliary absorber 100, and as a result, the manufacturing cost increases. In addition, since the conventional auxiliary absorber 100 is installed outside the absorption refrigeration cycle, if airtight leakage occurs in each welded portion, air enters into the absorption refrigeration cycle, and the capacity of the absorption refrigeration cycle decreases. Resulting in.

In view of the above, means for arranging the auxiliary absorber 100 in the absorption refrigeration cycle and joining the joints by welding by brazing to facilitate the joining work have been devised. However, when the auxiliary absorber 100 is disposed in the absorption refrigeration cycle, it is necessary to route the cooling water pipe 104 for removing the heat of the auxiliary absorber 100 in the absorption refrigeration cycle, and to remove the heat of the auxiliary absorber 100. It becomes necessary to join the cooling water pipe 104 with another cooling water pipe in the absorption refrigeration cycle,
As a result, it becomes difficult to assemble, resulting in a problem that productivity is extremely deteriorated.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an absorption air conditioner in which an auxiliary absorber can be easily assembled in an absorption refrigeration cycle.

[0009]

[Means of claim 1]

The absorption-type air conditioner includes: a) heating means for heating the absorption liquid; b) a regenerator for heating the absorption liquid with the heating means to vaporize a part of the absorption liquid; A condenser that cools and liquefies, an evaporator that evaporates the liquefied refrigerant liquefied by the condenser under low pressure, an absorber that absorbs the vaporized refrigerant evaporated by the evaporator into an absorbent, and an absorbent that absorbs the liquid in the absorber. An absorption refrigeration cycle having a solution pump for pumping to the regenerator; c) a gas introduction passage for introducing non-condensable gas in the absorption refrigeration cycle together with a vaporized refrigerant, and absorption in the absorption refrigeration cycle. An auxiliary absorber having an absorbing liquid introduction passage for introducing a liquid and a gas-liquid discharging passage for allowing the introduced gas to flow out together with the absorbing liquid; d) an uncondensable gas tank for storing an uncondensable gas; ) Wherein separating the gas leaving the absorption liquid from the gas-liquid discharge passage lead the separated gas into the non-condensable gas tank, and a gas-liquid separator to return the separated absorbing liquid to the absorption refrigerating cycle. And the auxiliary absorber is composed of two
And formed in the evaporator or the absorber, and in the evaporator or
It is arranged to radiate heat into the air in the absorber,
Larger heat dissipation area due to allowance for the combination of two press-formed plates
And dissipates the heat of the auxiliary absorber into the evaporator or the absorber.

[0010] [Means of Claim 2] a) heating means for heating the absorbing liquid; and b) absorbing by heating the absorbing liquid with the heating means.
A regenerator that evaporates part of the liquid, the gas generated by this regenerator
Condenser that cools and liquefies the liquefied refrigerant.
Evaporator that evaporates the liquefied refrigerant under low pressure.
An absorber for absorbing the evaporated vaporized refrigerant into an absorbing liquid;
A solution pump for pumping the absorbent in the collector to the regenerator;
And Bei to absorption refrigerating cycle, c) the vaporized refrigerant noncondensable gas in the absorption refrigerating cycle
With a gas introduction passage to be introduced with
Absorption liquid introduction line for introducing absorption liquid in absorption refrigeration cycle
Channel and the introduced gas flows out together with the absorbent
A ) a non-condensable gas tank for storing non-condensable gas; and e) separating the gas and the absorbent flowing out from the gas-liquid discharge passage.
The separated gas is led to the non-condensable gas tank and separated.
Gas-liquid separation for returning the separated absorbent to the absorption refrigeration cycle
An air conditioner comprising: an auxiliary absorber;
Are the container of the evaporator, the contents in the evaporator,
Contact with the container of the collector or the contents in the absorber
The feature is to escape.

[Claim 3] In the absorption air conditioner according to claim 1 , the auxiliary absorber is a container of the evaporator, a container in the evaporator, a container of the absorber, or the absorber. It is characterized in that heat is released in contact with the contents inside.

According to a fourth aspect of the present invention, in the absorption type air conditioner according to the third aspect, the auxiliary absorber is disposed inside the evaporator and in contact with a refrigerant spraying device for spraying the refrigerant. It is characterized by the following.

[Claim 5] A refrigerant liquefied from the condenser flows into the container of the evaporator.
A refrigerant cooler that self-cools the refrigerant and supplies the refrigerant to the refrigerant sprayer is provided, and the auxiliary absorber is disposed in contact with the refrigerant cooler. [Means of Claim 6] The auxiliary absorber is arranged so as to be in contact with the refrigerant inflow side wall surface of the refrigerant cooler.

According to a seventh aspect of the present invention, in the refrigerant cooler, a high-temperature refrigerant cooling chamber in which a liquefied refrigerant flows in from the condenser and self-cools, and a liquefied refrigerant cooled down in the high-temperature refrigerant cooling chamber flows therein. It is characterized by being partitioned by a partition into a low-temperature refrigerant cooling chamber for self-cooling, and the auxiliary absorber is arranged so as to be in contact with an outer wall on the high-temperature refrigerant cooling chamber side.

[0015]

[Action and effect of the invention]

[Function and Effect of Claim 1] The auxiliary absorber is disposed inside the evaporator or the absorber. For this reason, the absorption heat generated when the refrigerant is absorbed by the absorbing liquid in the auxiliary absorber is radiated into the evaporator or the absorber. The auxiliary absorber combines two press-formed plates
Is provided, and a large allowance is provided for the press-formed plate.
By doing so, the allowance serves as a cooling fin.
As a result, the absorption heat generated by the auxiliary absorber is
Heat can be dissipated by a certain allowance. That is,
By using the matching margin as cooling fins,
The heat radiation effect can be enhanced without increasing the number.
Therefore, there is no need to join a cooling water pipe for removing absorbed heat to the auxiliary absorber. As a result, there is no need to arrange a cooling water pipe for cooling the auxiliary absorber inside the evaporator or the absorber, and it is not necessary to join the cooling water pipe to other cooling water pipes. The performance is improved.

[Function and Effect of Claim 2] The auxiliary absorber is provided with a container for the evaporator, a container inside the container, or
The auxiliary absorber is installed in contact with the absorber and its contents.
Dissipate the heat of something in contact. As a result, the circumference of the auxiliary absorber
Compared to releasing heat to the surrounding space, the heat of the auxiliary absorber is
Can be reliably released.

[Function and Effect of Claim 3] The auxiliary absorber is provided by combining two press-formed plates,
Due to the large allowance for press-formed plate
The alignment margin serves as a cooling fin. In addition,
Remove the absorber from the evaporator container or the contents
Provided in contact with the container and the contents inside,
Escape to those in contact. As a result, the heat of the auxiliary absorber is
Can be released quickly and reliably.

The refrigerant dispersing device in the evaporator is supplied with a relatively low-temperature refrigerant which has been cooled and condensed by the condenser. It is kept at a low temperature. For this reason, by providing the auxiliary absorber in contact with the relatively low-temperature refrigerant dispersing device, the heat of the auxiliary absorber is efficiently deprived by the refrigerant dispersing device, and as a result, the temperature of the auxiliary absorber is kept low. be able to.

[Function and Effect of Claim 5 or 6] The refrigerant cooler in the evaporator is cooled to 40 ° C. by the condenser.
Liquefied refrigerant is supplied, and there is a liquefied refrigerant that has been cooled down to about 5 ° C. by self-cooling, which partially evaporates and removes heat of evaporation from the rest. For this reason, by providing the auxiliary absorber in contact with the relatively low-temperature refrigerant cooler, the heat of the auxiliary absorber is efficiently taken by the refrigerant cooler, and as a result, the temperature of the auxiliary absorber is kept low. be able to. Further, it is desirable that the auxiliary absorber be in contact with the wall surface on the refrigerant inflow side of the refrigerant cooler having a relatively high temperature of about 30 ° C. from the viewpoint of preventing overcooling.

In the high-temperature refrigerant cooling chamber separated by the partition wall of the refrigerant cooler, a liquefied refrigerant of about 40 ° C. cooled and condensed by the condenser is supplied, and a part thereof evaporates. Liquefied refrigerant at a stable temperature of about 30 ° C. is provided by performing a predetermined amount of self-cooling to remove evaporation heat from the rest,
In the low-temperature refrigerant cooling chamber, there is a liquefied refrigerant of about 30 ° C. which has flowed in and cooled down to about 5 ° C. by further self-cooling. For this reason, by providing the auxiliary absorber in contact with the outer wall of the high-temperature refrigerant cooling chamber at about 30 ° C., the auxiliary absorber is appropriately cooled, so that overcooling can be prevented, and bromination in the auxiliary absorber by overcooling can be prevented. The crystallization of lithium can be effectively prevented.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an absorption type air conditioner of the present invention will be described based on an embodiment shown in the drawings. FIG. 1 to FIG. 6 show a first embodiment, and FIG. 2 shows a schematic configuration of an absorption air conditioner using a double effect absorption refrigeration cycle for performing indoor air conditioning. FIG.

(Schematic description of absorption type air conditioner 1) The absorption type air conditioner 1 to which this embodiment is applied is a relatively small one used for home use and the like. In this example, a heating means 2 for heating lithium bromide aqueous solution, a double effect absorption refrigeration cycle 3, and cold / hot water cooled or heated by the absorption refrigeration cycle 3 (a heat medium for cooling / heating the room; Indoor air-conditioning means 4 for air-conditioning the room with water in the embodiment, and cooling water cooling means 5 for cooling the cooling water mainly used for cooling the vaporized refrigerant (steam in this embodiment) in the absorption refrigeration cycle 3. And a control device 6 for controlling each mounted electric functional component.

(Explanation of Heating Means 2) The heating means 2 of the present embodiment is a gas combustion device which burns a gas as a fuel to generate heat and heats the absorbing liquid by the generated heat. The gas burner 11 includes a gas supply unit 12 that supplies gas to the gas burner 11, a combustion fan 13 that supplies air for combustion to the gas burner 11, and the like.
Then, the heat obtained by the gas combustion of the gas burner 11 heats the boiler 14 of the absorption refrigeration cycle 3, and the boiler 14
It is provided so as to heat the low-concentration absorption liquid (hereinafter, low liquid) supplied to the inside.

(Explanation of Absorption Refrigeration Cycle 3) The absorption refrigeration cycle 3 includes a boiler 14 heated by the heating means 2, and the low liquid supplied into the boiler 14 is heated to reduce the temperature. A high-temperature regenerator 15 that evaporates (evaporates) a refrigerant (water) contained in the liquid into a medium-concentration absorbing liquid (hereinafter, medium liquid), and utilizes heat of condensation of the vaporized refrigerant in the high-temperature regenerator 15, A low-temperature regenerator 16 that heats an intermediate liquid supplied from the high-temperature regenerator 15 using a pressure difference, vaporizes a refrigerant contained in the intermediate liquid, and turns the intermediate liquid into a high-concentration absorbing liquid (hereinafter, high liquid). A condenser 17 for cooling and liquefying the vaporized refrigerant (steam) from the high-temperature regenerator 15 and the low-temperature regenerator 16;
An evaporator 18 for evaporating the liquefied refrigerant (water) liquefied by the condenser 17 under a pressure close to vacuum, and an absorption for absorbing the vaporized refrigerant evaporated by the evaporator 18 to the high liquid obtained by the low-temperature regenerator 16. And a vessel 19.

(Explanation of the high-temperature regenerator 15)
Is a boiler 1 for heating the low liquid by the heating means 2.
4, and a boiling cylinder 21 extending upward from the boiler 14
Is provided. The vaporized refrigerant that has been boiled in the boiler 14 and the boiling cylinder 21 and vaporized from the low liquid is blown out from the boiling cylinder 21 into the cylindrical high-temperature regeneration container 22. The high-temperature vaporized refrigerant blown into the high-temperature regeneration container 22 is
The second wall removes heat as heat of vaporization when the middle liquid in the low-temperature regenerator 16 evaporates and is cooled to become a liquefied refrigerant (water).

In the high-temperature regenerating vessel 22, the medium liquid in the boiling cylinder 21 after the refrigerant in the low liquid is vaporized by being heated by the boiler 14 and the liquefied refrigerant (water) stored in the surroundings are insulated. For this purpose, a heat insulating partition tube 24 is provided around the boiling tube 21. The heat insulating partition tube 24 has an upper end joined to the upper end of the boiling tube 21, a lower end provided with a gap from the boiling tube 21, and provided such that air enters between the boiling tube 21 and the heat insulating partition tube 24. Have been. The liquefied refrigerant (water) liquefied in the high-temperature regeneration container 22 and separated outside the heat insulating partition tube 24 is guided to the condenser 17 through a liquid refrigerant pipe 25 connected to a lower portion.

(Explanation of the low-temperature regenerator 16)
Includes a cylindrical low-temperature regeneration container 31 covering the high-temperature regeneration container 22. On the other hand, the middle liquid in the boiling cylinder 21 is supplied to the low-temperature regenerator 16 through a middle liquid pipe 26 connected to a lower part of the boiling cylinder 21. The middle liquid pipe 26 is provided with a throttle means 27 such as an orifice. This aperture means 27
When the cooling / heating switching valve 53 described later is closed, the medium flows while maintaining the pressure difference between the high-temperature regenerator 15 and the low-temperature regenerator 16. Do not shed.

The low temperature regenerator 16 injects the middle liquid supplied through the middle liquid pipe 26 toward the ceiling of the high temperature regeneration container 22. The temperature in the low temperature regeneration vessel 31 is
2, the pressure in the low temperature regeneration container 31 is lower than the pressure in the high temperature regeneration container 22. Therefore, the middle liquid supplied from the middle liquid pipe 26 into the low-temperature regeneration container 31 is easily evaporated. Then, when the middle liquid is injected into the ceiling of the high temperature regeneration container 22, the middle liquid is heated by the wall of the high temperature regeneration container 22, and a part of the refrigerant contained in the middle liquid evaporates to become a vaporized refrigerant, Becomes high liquid.

Here, the upper part of the low-temperature regeneration container 31 communicates with the upper side of the condensing container 32 in the shape of an annular container through a communication part 33. Therefore, the vaporized refrigerant evaporated in the low-temperature regeneration container 31 is supplied into the condensation container 32 through the communication portion 33. On the other hand, the high liquid falls to the lower part of the low temperature regeneration container 31 and is supplied to the absorber 19 through the high liquid pipe 34 connected to the lower part of the low temperature regeneration container 31. In addition, the low temperature regeneration container 3
1, a ceiling plate 35 is provided.
A gap 36 through which the vaporized refrigerant passes is provided between the outer peripheral end of 5 and the low temperature regeneration container 31.

(Explanation of the Condenser 17) The condenser 17 is covered by an annular container-shaped condensing container 32. Inside the condensing container 32, a condensing heat exchanger 37 for cooling and liquefying the vaporized refrigerant in the condensing container 32 is arranged. The condensing heat exchanger 37 is an annular coil through which cooling water flows. The liquefied refrigerant supplied from the low-temperature regenerator 16 into the condensing container 32 is supplied to the condensing heat exchanger 3.
The mixture is cooled and liquefied by 7 and dropped below the condensing heat exchanger 37.

On the other hand, a refrigerant is supplied to the lower side of the condensing container 32 from the high-temperature regenerator 15 through the liquid refrigerant pipe 25. When the supplied refrigerant is supplied into the condensing container 32, it reboils due to a difference in pressure (in the condensing container 32, at a temperature of slightly over 40 ° C and a low pressure of about 70 mmHg), and the vaporized refrigerant and the liquefied refrigerant are re-boiled. Are supplied in a mixed state. Further, a liquid refrigerant supply pipe 38 for guiding the liquefied refrigerant to the evaporator 18 is connected to the condensation container 32. The liquid refrigerant supply pipe 38 is provided with a refrigerant valve 39 for adjusting the supply amount of the liquefied refrigerant supplied from the condensation container 32 to the evaporator 18.

(Explanation of the evaporator 18) The evaporator 18 is provided together with the absorber 19 at the lower part of the condensing container 32. The evaporator 18 is provided with an annular-shaped evaporative absorption container 41 provided around the low-temperature regeneration container 31. Covered. An evaporation heat exchanger 42 for evaporating the liquefied refrigerant supplied from the condenser 17 is disposed outside the inside of the evaporation absorption container 41. This evaporating heat exchanger 42 is an annular coil,
Cold and hot water (heat medium) supplied to the indoor air-conditioning means 4 inside
Flows. The liquefied refrigerant supplied from the condenser 17 via the liquid refrigerant supply pipe 38 is sprayed onto the evaporating heat exchanger 42 from an annular refrigerant spraying tool 43 disposed above the evaporating heat exchanger 42. Is done.

Since the inside of the evaporative absorption container 41 is maintained at substantially a vacuum (for example, 6.5 mmHg at a temperature of about 5 ° C.), the liquefied refrigerant sprayed on the evaporating heat exchanger 42 has a low boiling point, and It's easy to do. Then, the liquefied refrigerant sprayed to the evaporating heat exchanger 42 evaporates by taking heat of vaporization from the heat medium flowing in the evaporating heat exchanger 42. As a result, the heat medium flowing in the evaporating heat exchanger 42 is cooled. And
The cooled heat medium is guided to the indoor air conditioner 4 to cool the room.

(Explanation of the Absorber 19) The absorber 19 is covered with the evaporation absorption container 41 as described above. The absorber 19 is provided inside the evaporative absorption container 41 with the high liquid pipe 3.
An absorption heat exchanger 44 for cooling the high liquid supplied from 4 is arranged. The heat exchanger 44 for absorption is an annular coil, and the inside thereof is supplied with cooling water for cooling the high liquid sprayed on the coil. After passing through the heat exchanger 44 for absorption, the cooling water passes through the heat exchanger 37 for condensation of the condenser 17 and is guided to the cooling water cooling means 5 to be cooled. Then, the cooling water cooled by the cooling water cooling means 5 is guided again to the absorption heat exchanger 44.

On the other hand, on the upper part of the absorption heat exchanger 44, there is disposed an annular absorbent dispersion device 45 for dispersing the high liquid supplied from the high liquid pipe 34 to the absorption heat exchanger 44. The high liquid sprayed on the absorption heat exchanger 44, while traveling down the coil surface of the absorption heat exchanger 44 and falling from above to below, removes the vaporized refrigerant generated by evaporation in the evaporation heat exchanger 42. Absorb. As a result, the absorption liquid that has fallen to the bottom of the evaporative absorption container 41 becomes a low concentration liquid with a low concentration.

Inside the evaporation absorption container 41, a cylindrical partition wall 4 is provided between the evaporation heat exchanger 42 and the absorption heat exchanger 44.
6 are arranged. The cylindrical partition wall 46 communicates with the inside of the evaporation absorption container 41 only at the upper side, and the vaporized refrigerant generated by the evaporator 18 is guided into the absorber 19 through the upper part of the cylindrical partition wall 46. .

A low liquid pipe 47 for supplying the low liquid at the bottom of the evaporative absorption container 41 to the boiler 14 is connected to the bottom of the evaporative absorption container 41. The low liquid pipe 47 is provided with a solution pump 48 for flowing the low liquid from the inside of the evaporation absorption container 41 in a substantially vacuum state toward the boiler 14.

(Description of other components in absorption refrigeration cycle 3) Reference numeral 51 shown in FIG.
A high-temperature heat exchanger 51 for exchanging heat between the medium liquid flowing from the inside to the low-temperature regenerator 16 and the low liquid flowing from the absorber 19 to the boiler 14.
a, and a low-temperature heat exchanger 51b for exchanging heat between the high liquid flowing from the low-temperature regenerator 16 to the absorber 19 and the low liquid flowing from the absorber 19 to the boiler 14. The high-temperature heat exchanger 51a cools the middle liquid flowing from the boiling cylinder 21 to the low-temperature regenerator 16 and heats the low liquid flowing from the absorber 19 to the boiler 14. The low-temperature heat exchanger 51b cools the high liquid flowing from the low-temperature regenerator 16 to the absorber 19 and heats the low liquid flowing from the absorber 19 to the boiler 14.

The absorption refrigeration cycle 3 of this embodiment is provided with heating operation means for performing a heating operation in addition to the cooling operation by the above-described operation. The heating operation means includes a heating pipe 52 for guiding the high-temperature absorbing liquid from the lower part of the boiling cylinder 21 to a lower part of the evaporator 18, and a cooling / heating switching valve 53 for opening and closing the heating pipe 52. The cooling / heating switching valve 53 opens during the heating operation to guide the high-temperature absorbing liquid into the evaporating / absorbing container 41 and heat the cold / hot water flowing in the evaporating heat exchanger 42 of the evaporator 18.

(Description of Indoor Air Conditioning Means 4)
Is forcibly exchanging heat between the cold and hot water passing through the indoor heat exchanger 54 installed in the room and the evaporator 18 flowing through the indoor heat exchanger 54 and the room air, and blowing the air after the heat exchange into the room. And an indoor fan 55 for causing the indoor fan 55 to operate.

A cold / hot water circuit 56 for circulating cold / hot water is connected to the indoor heat exchanger 54, and the cold / hot water circuit 56 is provided with a cold / hot water pump 57 for circulating cold / hot water. The cold / hot water pump 57 is driven by a motor that also drives the solution pump 48.

The cold / hot water circuit 56 is a water pipe that guides the cold / hot water that has passed through the evaporator 18 to the indoor heat exchanger 54 and guides the cold / hot water that has exchanged heat with the room air to the evaporator 18 again. Inside, the indoor heat exchanger 54 and the cold / hot water pump 57
In addition, a cis-turn 58 for storing cold / hot water and having a function as an expansion tank at the time of heating and for refilling cold / hot water in the cold / hot water circuit 56 is provided.

A water supply pipe 59 for supplying cold / hot water (tap water) to the inside is connected to the cistern 58. In this water supply pipe 59, supply of cold and hot water into the cistern 58,
A water supply valve 60 for stopping is provided. The cistern 58 includes a water level sensor (not shown).
To open and refill the cistern 58 with cold and hot water. Further, the cistern 58 is provided with overflow water supply means 59a for guiding the overflowed cold / hot water into a cooling water tank 65 described later.

(Description of Cooling Water Cooling Means 5) The cooling water cooling means 5 includes an evaporative cooling tower 61, a cooling water circuit 62 for circulating cooling water, and a cooling water pump for circulating cooling water in the cooling water circuit 62. 63 is provided. The cooling tower 61 includes the absorber 1
The cooling water that has passed through the condenser 9 and the condenser 17 flows downward from above, exchanges heat with the outside air while flowing to radiate heat, and partially evaporates during the flow, thereby cooling during the evaporation. A spraying unit 61 for removing vaporization heat from water and cooling the flowing cooling water, and spraying the cooling water upward.
a, an evaporator 61b having a large surface area through which the cooling water flows, and a collector 61c for collecting the cooling water passing through the evaporator 61b
It is composed of In addition, the cooling tower 61 includes an evaporator 6
1b is provided with a cooling water fan 64 for generating an air flow and promoting the evaporation and cooling of the cooling water in the evaporating section 61b.

The cooling water circuit 62 passes the cooling water, which has passed through the absorber 19 and the condenser 17 and has increased in temperature, to the cooling tower 6.
1 and sends the cooling water cooled by the cooling tower 61 to the absorber 19 and the condenser 17 again. In the cooling water circuit 62, in addition to the cooling tower 61 and the cooling water pump 63,
A cooling water tank 65 for storing cooling water is provided.

The cooling water tank 65 is installed below the cooling tower 61 and below the cistern 58,
The cooling water that has passed through 1 is supplied, and the water that overflows in the cistern 58 is supplied. The cooling water tank 65 is provided with a water level sensor (not shown). When the level of the cooling water in the cooling water tank 65 decreases, the water supply valve 60 is opened to overflow the water from the cistern 58, and the overflowed water is supplied to the overflow water supply means. 59a
To the cooling water tank 65 to supply the cooling water.

(Explanation of the control unit 6) The control unit 6 includes the above-described refrigerant valve 39, solution pump 48 (cold and hot water pump 57),
Electric functional parts such as the indoor fan 55, the cooling / heating switching valve 53, the water supply valve 60, the cooling water pump 63, the cooling water fan 64, and the electric functional parts of the heating means 2 (combustion fan 1
3. Gas control valve 66, gas on-off valve 67, ignition device 68
) Is controlled in accordance with an operation instruction of a controller (not shown) manually set by a user or an input signal of each of a plurality of sensors.

(Explanation of Bleed Device 70) Absorption Air Conditioner 1
As shown in FIG. 1, a gas extraction device 70 is provided for extracting and storing non-condensable gas such as hydrogen generated by the action of corrosion in the absorption refrigeration cycle 3 from the absorption refrigeration cycle 3. The bleeding device 70 includes an auxiliary absorber 7 that allows the non-condensable gas extracted from the absorption refrigeration cycle 3 and the absorbing liquid to flow down.
1, a gas-liquid separator 72 for separating the non-condensable gas flowing out of the auxiliary absorber 71 from the absorbing liquid, and a gas-liquid separator 7
Non-condensable gas tank 7 for storing the non-condensable gas separated in 2
And 3.

The auxiliary absorber 71 is disposed inside the absorber 19 (in this embodiment, inside the evaporative absorption container 41 and inside the cylindrical partition wall 46). A gas introduction passage 74 for introducing condensed gas (in the present embodiment, non-condensable gas accumulated in the lower portion of the absorber 19) together with the vaporized refrigerant is provided, and an absorption liquid (in this embodiment, absorption in the absorption refrigeration cycle 3) is used. An absorption liquid introduction passage 75 for introducing a part of the high liquid dropped from above the vessel 19 and a gas-liquid discharge passage 76 for discharging the introduced gas and the absorption liquid are provided.

The auxiliary absorber 71 is also shown in FIGS. 3 and 4 and has a flat shape provided by combining two press-formed plates 71a. Pumping pipe 7 constituting liquid discharge passage 76
6a is brazed together with the two press-formed plates 71a while being sandwiched between the two press-formed plates 71a.

On the other hand, the high liquid (absorbing liquid) supplied to the auxiliary absorber 71 is supplied from the absorbing liquid introduction passage 75 to the auxiliary absorber 71.
In this embodiment, the liquid is introduced into the absorbing liquid introduction passage 7.
As shown in FIG. 6, the liquid tube 75 a constituting the fifth unit 5 has an upper end joined to the absorbent sprayer 45, and a funnel-shaped connection port 75 b provided at the upper end of the auxiliary absorber 71 (FIGS. 3 and 4). ), And the high liquid is supplied to the auxiliary absorber 71.
It is provided so as to be dropped inside. An orifice 75c for adjusting the flow rate of the high liquid supplied to the auxiliary absorber 71 is joined to the downstream end of the absorbing liquid introduction passage 75 by brazing.

As shown in FIGS. 3 and 4, the two press-formed plates 71a are combined to form an auxiliary absorber 71 into which an uncondensable gas containing a vaporized refrigerant and a high liquid (absorbent) are introduced. Is formed, and a gas passage 7 that guides the gas supplied from the lower bleed pipe 74 a to above the auxiliary absorber 71.
4b (part of the gas introduction passage 74) and a connection port 74c (FIG. 5).
), And a funnel-shaped connection port 75b that receives a drop of high liquid from the absorption liquid introduction passage 75 is formed.

Further, the two press-formed plates 71a are combined to provide a siphon-type gas-liquid suction portion 76b (part of the gas-liquid discharge passage 76) and a connection port 76d. The gas-liquid suction portion 76b is inclined upward from the gas-liquid suction port 76c, and then hangs down, is connected to the hanging gas-liquid discharge passage 76, and the gas-liquid separator 72 is disposed below the auxiliary absorber 71. You. For this reason, the liquid level of the absorbing liquid in the auxiliary absorber 71 rises, reaches the liquid level at the uppermost end of the gas-liquid suction part 76b, and the absorbing liquid is collected by the siphon action and passes through the gas-liquid discharging passage 76. When the gas falls into the liquid separator 72, the gas in the auxiliary absorber 71 is sucked into the gas-liquid discharge passage 76 together with the high liquid (absorbing liquid). And the auxiliary absorber 71
When the gas inside is sucked into the gas-liquid discharge passage 76, the non-condensable gas accumulated in the lower part of the absorber 19 is sucked into the auxiliary absorber 71 via the gas introduction passage 74.

On the other hand, the auxiliary absorber 71 is
6 is supported inside the cylindrical partition wall 46 by the pumping tube 76a. The pumping tube 76a that supports the auxiliary absorber 71 is firmly fixed by a welding technique while penetrating the bottom plate of the evaporative absorption container 41. In addition,
In the case of supporting only by the pumping tube 76a, the auxiliary absorber 7
If the supporting strength of 1 is insufficient, the auxiliary absorber 71 may be supported on the cylindrical partition wall 46 or the like using a metal fitting or a fastener.

As described above, the auxiliary absorber 71 includes the absorber 1
Heat absorbed by the auxiliary absorber 71 (heat generated when the vaporized refrigerant is absorbed by the high liquid), which is arranged in the space inside 9.
Are provided in the absorber 19 so as to radiate heat. That is, the cooling means by the heat radiation prevents the temperature of the auxiliary absorber 71 from rising. The auxiliary absorber 71 is provided by combining two press-formed plates 71a as described above. A large margin 71b of the press-formed plate 71a is provided, and the margin 71b functions as a cooling fin. That is, the absorption heat generated in the auxiliary absorber 71 can be radiated to the inside of the absorber 19 by the matching margin 71b which is a cooling fin.

(Description of Non-Condensable Gas Tank 73) The non-condensable gas tank 73 is a container arranged outside the absorption refrigeration cycle 3 as shown in FIG. ing. The non-condensing gas tank 7
3 is provided with a maintenance valve (not shown), through which non-condensable gas is extracted at a predetermined time.

(Description of Gas-Liquid Separator 72) Gas-Liquid Separator 72
As shown in FIG. 1, is disposed below the auxiliary absorber 71 and the non-condensable gas tank 73, separates the gas flowing out of the gas-liquid discharge passage 76 from the absorbing liquid, and separates the separated gas into a gas discharge passage 78a. Through the non-condensable gas tank 73,
The separated absorbent is returned into the absorber 19 of the absorption refrigeration cycle 3 through the absorbent return passage 78b.

The gas-liquid separator 72 of this embodiment includes a small-diameter pipe 79 extending from the gas-liquid discharge passage 76 and a small-diameter pipe 7.
9 is composed of only a large-diameter pipe 78 (a pipe constituting the absorbent return passage 78b). The small-diameter pipe 79 and the large-diameter pipe 78 are formed in a U shape, and the large-diameter pipe 78 has the same liquid level as the low liquid in the absorber 19, and the gas discharge passage 78a is located above the liquid surface. , The lower side is the absorbent return passage 78b
The upper end of the small-diameter pipe 79 is set below the liquid level, and the non-condensable gas discharged from the small-diameter pipe 79 rises in the absorbent and is separated therefrom, and enters the non-condensable gas tank 73 through the gas discharge passage 78a. Be guided.

[Operation of Embodiment] Next, the absorption type air conditioner 1
The operation of the cooling operation and the operation of the air extraction device 70 at the time of performing the cooling operation will be described. (Explanation of the operation of the cooling operation) When the absorption air conditioner 1 is started, the heating means 2 and the absorption refrigeration cycle 3 are operated by the operation of the electric functional components. Absorption refrigeration cycle 3
In other words, when the heating means 2 heats the boiler 14, the high-temperature regenerator 15 takes out the vaporized refrigerant from the low liquid, and the low-temperature regenerator 16 takes out the high liquid from the middle liquid.

The vaporized refrigerant taken out by the high-temperature regenerator 15 and the low-temperature regenerator 16 is condensed and liquefied by the condenser 17 and is then dispersed to the evaporator heat exchanger 42 of the evaporator 18 to be evaporated. The heat of vaporization is taken from the cold and hot water in 42 to evaporate. Therefore, the cooled hot and cold water that has passed through the evaporating heat exchanger 42 and is cooled is supplied to the indoor heat exchanger 54 of the indoor air conditioner 4 to cool the room.

The vaporized refrigerant evaporated in the evaporator 18 passes above the cylindrical partition wall 46 and flows into the absorber 19.
On the other hand, in the absorber 19, the high liquid taken out by the low-temperature regenerator 16 is dispersed to the absorption heat exchanger 44, and the high liquid absorbs the vaporized refrigerant flowing from the evaporator 18. Note that the absorption heat generated when the vaporized refrigerant is absorbed by the high liquid is absorbed by the absorption heat exchanger 44, thereby preventing the absorption capacity from lowering. The high liquid that has absorbed the vaporized refrigerant in the absorber 19 becomes a low liquid, is sucked by the solution pump 48, is returned into the evaporator 14, and repeats the above cycle.

(Explanation of the operation of the extraction device 70) During the above-mentioned cooling operation by the absorption refrigeration cycle 3, the vaporized refrigerant evaporated in the evaporator 18 passes above the cylindrical partition wall 46 and flows into the absorber 19. The non-condensable gas in the absorption refrigeration cycle 3 introduced into the evaporative absorption container 41 while being mixed with the high liquid and the refrigerant by the air flow (see the arrow A in FIG.
Accumulates at the bottom of

On the other hand, when the above-described cooling operation by the absorption refrigeration cycle 3 is being performed, a part of the high liquid supplied to the absorbent sprayer 45 of the absorber 19 is joined to the absorbent sprayer 45. The liquid is supplied into the auxiliary absorber 71 from the liquid pipe 75a constituting the absorbing liquid introduction passage 75 through the orifice 75c.

The high liquid supplied to the auxiliary absorber 71 is collectively sucked into the gas-liquid discharge passage 76 by the siphon action of the gas-liquid suction portion 76b, and is then sent from the gas-liquid discharge passage to the lower gas-liquid separator 72. Fall. When the high liquid collectively falls below the gas-liquid discharge passage 76, the auxiliary absorber 71
The gas inside is sucked into the gas-liquid discharge passage 76 together with the absorbing liquid, and falls into the gas-liquid separator 72 together with the absorbing liquid.
When the gas in the auxiliary absorber 71 is sucked into the gas-liquid discharge passage 76, the non-condensable gas accumulated in the lower part of the absorber 19 is discharged through the gas introduction passage 74 to the auxiliary absorber 7.
It is sucked into 1.

The vaporized refrigerant introduced into the auxiliary absorber 71 is
Absorbed heat is absorbed by the high liquid to generate heat of absorption, and the absorbed heat is radiated into the absorber 19 accommodating the auxiliary absorber 71, and as a result, the temperature rise of the auxiliary absorber 71 is prevented, and 7
1, the absorption capacity is maintained, and the bleeding capacity is maintained. As described above, the vaporized refrigerant among the gases guided into the auxiliary absorber 71 is absorbed by the high liquid. The remaining non-condensable gas passes through the gas-liquid suction section 76b, and when the siphon action of dropping collectively occurs, the gas-liquid suction section 7
The liquid is sucked into the gas-liquid discharge passage 76 via the nozzle 6b, and falls into the gas-liquid separator 72 together with the high liquid.

The non-condensable gas and high liquid that have fallen into the gas-liquid separator 72 are separated by the gas-liquid separator 72, and the separated non-condensable gas is stored in the non-condensable gas tank 73, and the separated high liquid is absorbed. It is returned to the lower part of the vessel 19.

[Effects of the Embodiment] The auxiliary absorber 71 in the bleeding device 70 is disposed inside the absorber 19, and the heat absorbed by the auxiliary absorber 71 is released into the absorber 19 by cooling means by heat radiation. You. The cooling capacity of the auxiliary absorber 71 due to heat radiation is lower than the cooling capacity using cooling water, and the bleeding capacity of the auxiliary absorber 71 is also lower than that using cooling water. Sufficient bleeding capacity can be obtained by cooling only with the heat radiation of 71.

As described above, since there is no need to connect the cooling water pipe for removing the absorbed heat to the auxiliary absorber 71, the cooling water pipe for cooling the auxiliary absorber 71 is connected to the cooling water pipe (heat absorbing heat pipe). And the evaporative absorption container 41
There is no need to handle the inside of the device, which facilitates assembly and improves productivity. In other words, by improving productivity,
Production costs can be reduced.

The cooling water pipe is generally formed using a copper material, and the auxiliary absorber 71 is formed using a stainless material having excellent corrosion resistance. For this reason, when the cooling water pipe using the copper material is joined to the auxiliary absorber 71 using the stainless steel, corrosion between different metals occurs. However, in the present invention, since the cooling water pipe is not joined to the auxiliary absorber 71, corrosion between different metals does not occur in the auxiliary absorber 71, and the reliability of the absorption air conditioner 1 can be improved.

On the other hand, the auxiliary absorber 7 in the bleed device 70
Since 1 is disposed inside the absorber 19, welding is not required as a joining means of the gas introduction passage 74 and the gas-liquid discharge passage 76 of the auxiliary absorber 71, and brazing or caulking can be performed. Further, the liquid pipe 7 forming the absorption liquid introduction passage 75
5a is not joined, and the liquid pipe 75a of the absorption liquid introduction passage 75
There is no need to perform welding as a joining means between the and the orifice 75c, and brazing is sufficient. Therefore, the auxiliary absorber 71
This facilitates the production when joining the respective joints, and can reduce the production cost.

Even if airtight leakage occurs at each joint of the auxiliary absorber 71, the portion where the airtight leakage occurs is the absorber 19
, It is possible to prevent air from entering the absorption refrigeration cycle 3. That is, the auxiliary absorber 71
There is no problem that air enters from above, and the reliability of the absorption air conditioner 1 can be improved.

The auxiliary absorber 71 is connected to two press-formed plates 71
Since it is provided flat along with a, it is possible to avoid an increase in the volume of the absorber 19 accommodating the auxiliary absorber 71. Also, by joining the auxiliary absorber 71 formed by combining the two press-formed plates 71a, the gas introduction passage 74, and the gas-liquid discharge passage 76 by integral brazing, only one joining is required,
As a result, manufacturing costs are reduced.

The auxiliary absorber 71 is composed of two press-formed plates 71
a, and a large margin 71b is provided to serve as a cooling fin. As described above, by using the matching margin 71b as a cooling fin, the heat radiation effect of the auxiliary absorber 71 can be enhanced without increasing the number of components. The two press-formed plates 71a
May be joined by caulking or the like.

By the siphon action of the gas-liquid suction portion 76b provided in the gas-liquid discharge passage 76, the auxiliary absorber 71
The non-condensable gas inside is sucked into the gas-liquid discharge passage 76, and the gas in the absorber 19 can be guided into the auxiliary absorber 71 through the gas introduction passage 74 by the action. Therefore, a device (for example, a pump device) for guiding the non-condensable gas in the absorption refrigeration cycle 3 to the auxiliary absorber 71 and the gas-liquid separator 72 becomes unnecessary, and the non-condensable gas is supplied to the non-condensable gas tank 73.
The cost for extracting the oil can be kept low.

[Second Embodiment] FIG. 7 is a perspective view of a main part of an absorption type air conditioner showing a cooling means of an auxiliary absorber 71 showing a second embodiment. In the first embodiment described above, the auxiliary absorber 71 is disposed in the absorber 19, and the heat of absorption generated by the auxiliary absorber 71 is radiated into the absorber 19. The heat dissipating device 71 is disposed in direct contact with the refrigerant dispersing device 43 in the evaporator 18, and the heat of absorption generated by the auxiliary absorber 71 is released to the refrigerant dispersing device 43.

Since the liquefied refrigerant having a relatively low temperature is supplied to the refrigerant dispersing device 43, the refrigerant dispersing device 43 itself is maintained at a relatively low temperature. By providing the auxiliary absorber 71 in contact with the relatively low-temperature refrigerant dispersing device 43, the heat of the auxiliary absorber 71 is deprived by the refrigerant dispersing device 43, and as a result, the temperature of the auxiliary absorber 71 is lowered. As a result, the bleeding ability of the auxiliary absorber 71 can be kept high. In addition, the refrigerant | coolant spraying tool 43
Transmitted to the refrigerant vaporizes the liquefied refrigerant supplied to the refrigerant spraying tool 43. That is, the auxiliary absorber 71 is cooled by the heat of the auxiliary absorber 71 evaporating the liquefied refrigerant of the refrigerant spraying tool 43.

FIGS. 9 to 11 show a third embodiment. In this embodiment, the condenser 17 is provided with a refrigerant liquid receiving member 81 below the condensing heat exchanger 37 in the condensing container 32, and the refrigerant spraying member 43 of the evaporator 18 in the evaporation absorbing container 41. A refrigerant cooler 8 is provided above. The refrigerant cooler 8 is provided to keep the liquid refrigerant supplied from the condenser 17 in a liquid phase in a low-pressure evaporation absorption container. The refrigerant liquid receiver 81 and the refrigerant cooler 8 are connected by a liquid refrigerant flow path 82, and the bottom of the condensing container 32 and the refrigerant cooler 8 are connected by a liquid refrigerant supply pipe 38 having the refrigerant valve 39. Are linked.

As shown in FIGS. 10 and 11, the refrigerant cooler 8 is a container having a fan shape in plan view, and is separated from the high-temperature refrigerant cooling chamber 8A by the high-temperature refrigerant cooling chamber 8A and the partition wall 8B. In addition, a low-temperature refrigerant cooling chamber 8D communicated with the liquid refrigerant circulation port 8C is provided. In the high-temperature refrigerant cooling chamber 8A, a liquid refrigerant inlet 83 to which the liquid refrigerant flow path 82 is connected is formed on the top plate, and a liquid refrigerant inlet 84 to which the liquid refrigerant supply pipe 38 is connected is provided on the outer side wall. I have. Also, the high-temperature refrigerant cooling chamber 8A
The top plate has an outlet 85 for vaporized refrigerant.

The high-temperature refrigerant cooling chamber 8A is supplied with a liquid refrigerant of about 40 ° C. to 45 ° C. from the liquid refrigerant inlet 83 during normal cooling operation and from the liquid refrigerant inlet 84 intermittently when cooling operation is started. Flows in, a part of the evaporative absorption container 41 evaporates due to the low pressure inside the evaporative absorption container 41, and blows out from the outlet 85 into the evaporative absorption container 41. Due to this evaporation, the remainder of the liquid refrigerant is deprived of heat of vaporization and is cooled.
The temperature of the liquid refrigerant in A drops to about 30 ° C. In addition, the partition 8B
Since the high-temperature refrigerant cooling chamber 8A is formed to have a predetermined volume, the self-cooling in the high-temperature refrigerant cooling chamber 8A is restricted,
The temperature in the high-temperature refrigerant cooling chamber 8A is stabilized at about 30 ° C.

In the low-temperature refrigerant cooling chamber 8D, a liquid refrigerant outlet 86 is provided on the bottom plate, a grill-like vaporized refrigerant outlet 87 is formed on the top plate, and a temperature sensor plug 88 is provided on the outer side wall. . In the low-temperature refrigerant cooling chamber 8D, a part of the liquid refrigerant at about 30 ° C. flowing from the liquid refrigerant circulation port 8C further evaporates to take away heat of vaporization from the remaining part, and promotes self-cooling to reduce the remaining part of the liquid refrigerant by 5%. Cool down to about ° C. The evaporated refrigerant is blown out from the outlet 87 into the evaporation absorption container 41, and the liquid refrigerant cooled to about 5 ° C. flows down from the liquid refrigerant outlet 86 to the refrigerant spraying tool 43.

The auxiliary absorber 71 is arranged in contact with the outer wall 8E of the end surface of the high-temperature refrigerant cooling chamber 8A. As a result, the auxiliary absorber 71 is cooled to an appropriate temperature, the absorbed heat generated in the auxiliary absorber 71 is quickly exhausted via the end face outer wall 8E, and the auxiliary absorber 71 is maintained at an appropriate temperature. The non-condensable gas absorption capacity of the high-concentration absorbent is maintained. Also,
Also in this case, it is not necessary to join the cooling water pipe for cooling the auxiliary absorber 71 with the cooling water pipe (absorption heat exchanger) and route the cooling water pipe in the evaporative absorption container 41. Similar functions and effects can be obtained.

The auxiliary absorber 71 may be disposed in contact with the wall surface on the side of the low-temperature refrigerant cooling chamber 8D. In this case, however, the auxiliary absorber 71 is supercooled and crystallizes lithium bromide inside. Therefore, design considerations such as reduction of the contact area are required. Even when the partition 8B is omitted and the inside of the refrigerant cooler 8 is integrated, the liquid refrigerant gradually self-cools from flowing into the liquid refrigerant inlet 83 or 84 to flowing down from the liquid refrigerant outlet 86. And the temperature of the liquid refrigerant decreases. Therefore, the auxiliary absorber 71 is connected to the liquid refrigerant inlet 83 or 84.
Supercooling is less likely to occur in the case where the contact is made to be in contact with the outer end wall 8E on the side than in the case where it is in contact with the liquid refrigerant outlet 86 side. In this case, the outlet 85 becomes unnecessary.

[Modification] In the above embodiment, the auxiliary absorber 71 is provided by joining two press-formed plates 71a.
The auxiliary absorber 71 may be provided by another container such as a tube or a box. In the above embodiment, the example in which the auxiliary absorber 71 is arranged in the absorber 19 has been described, but the auxiliary absorber 71 may be arranged in the evaporator 18. In the above-described second and third embodiments, the refrigerant dispersing tool 43 and the refrigerant cooler 8 have been described as an example in which the auxiliary absorber 71 is brought into contact.
The auxiliary absorber 71 may be provided in such a manner that the auxiliary absorber 71 is brought into contact with another member such as 1 or the cylindrical partition wall 46 to release the heat of the auxiliary absorber 71 to another member.

In the above embodiment, the non-condensable gas is supplied to the absorber 1
Although the example in which the gas inlet passage 74 is provided so as to accumulate at the lower portion of the gas inlet 9 and the gas suction passage 74 is provided at the lower portion of the absorber 19 is shown, the non-condensable gas is supplied to another portion (for example, the upper portion of the absorber). It may be provided so as to store the gas, and an opening for sucking the gas in the gas introduction passage 74 may be provided in a portion where the non-condensable gas is stored.

In the above embodiment, a double effect absorption refrigeration cycle 3 has been described as an example of the absorption refrigeration cycle, but a single effect absorption refrigeration cycle may be used.
A triple effect or more multi-effect absorption refrigeration cycle may be used.
When injecting the middle liquid into the low-temperature regenerator, the low-temperature regenerator 1
Although the example of injecting from above is shown above, it is also possible to inject from below.

As a heating source of the heating means 2, a gas burner 11
However, an oil burner or an electric heater may be used, or exhaust heat of another device (for example, an internal combustion engine) may be used. Although the example in which the heat exchanger for condensation 37, the heat exchanger for evaporation 42, and the heat exchanger for absorption 44 are provided in a coil shape has been described, other types of heat exchangers such as a tube and fin or a stacked heat exchanger are used. May be used.

Although an aqueous solution of lithium bromide has been described as an example of the absorbing liquid, other absorbing liquids such as an aqueous ammonia solution using ammonia as a refrigerant and water as an absorbent may be used. As an example of the heat medium, tap water is used and shared with the cooling water in the cooling water circuit. However, other heat medium such as antifreeze or oil different from the cooling water in the cooling water circuit may be used.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a bleed device (first embodiment).

FIG. 2 is a schematic configuration diagram of an absorption type air conditioner (first embodiment).

FIG. 3 is a side view of the auxiliary absorber (first embodiment).

FIG. 4 is a top view of the auxiliary absorber (first embodiment).

FIG. 5 is a perspective view of a main part of the auxiliary absorber (first embodiment).

FIG. 6 is a cross-sectional view of a main part showing a joint state between the absorbing liquid introduction passage and the absorbing liquid spraying device (first embodiment).

FIG. 7 is a perspective view of an auxiliary absorber (second embodiment).

FIG. 8 is a side view of an auxiliary absorber (prior art).

FIG. 9 is a schematic configuration diagram of an absorption type air conditioner (third embodiment).

FIG. 10 is a perspective view of a refrigerant cooler and an auxiliary absorber (third embodiment).

FIG. 11 is an assembly diagram of a refrigerant cooler and an auxiliary absorber (third embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Absorption air conditioner 2 Heating means 3 Absorption refrigeration cycle 8 Refrigerant cooler 15 High temperature regenerator 16 Low temperature regenerator 17 Condenser 18 Evaporator 19 Absorber 48 Solution pump 70 Extraction device 71 Auxiliary absorber 71a Press molding plate 71b Charge 72 Gas-liquid separator 73 Non-condensable gas tank 74 Gas introduction passage 75 Absorption liquid introduction passage 76 Gas-liquid discharge passage 81 Refrigerant liquid receiver 8A High-temperature refrigerant cooling room 8D Low-temperature refrigerant cooling room

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-4249 (JP, A) JP-A-9-60995 (JP, A) Japanese Utility Model Showa 50-122357 (JP, U) 3864 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) F25B 43/04 F25B 15/00 303 F25B 37/00

Claims (7)

(57) [Claims] A) a heating means for heating the absorbing liquid; b) a regenerator for heating the absorbing liquid with the heating means to vaporize a part of the absorbing liquid; and cooling the vaporized refrigerant generated in the regenerator. A condenser that liquefies and evaporates the liquefied refrigerant liquefied by the condenser under a low pressure; an absorber that absorbs the vaporized refrigerant evaporated by the evaporator into an absorbing liquid; An absorption refrigeration cycle having a solution pump for pumping to a regenerator; and c) a gas introduction passage for introducing non-condensable gas in the absorption refrigeration cycle together with a vaporized refrigerant, and an absorption liquid in the absorption refrigeration cycle. A) an auxiliary absorber provided with an absorbing liquid introduction passage for introducing the gas, and a gas-liquid discharging passage for allowing the introduced gas to flow out together with the absorbing liquid; d) a non-condensable gas tank for storing non-condensable gas; A gas-liquid separator comprising: a gas and an absorbent which are separated from a gas flowing out from a gas-liquid discharge passage, guide the separated gas to the non-condensable gas tank, and return the separated absorbent to the absorption refrigeration cycle. In the above, the auxiliary absorber is formed by combining two press-formed plates.
And placed in the evaporator or the absorber, and discharged into the air in the evaporator or the absorber.
The two press-formed plates are arranged so as to be heated.
Due to the allowance, the heat radiation area is provided to be enlarged, and the heat of the auxiliary absorber is released into the evaporator or the absorber.
An absorption type air conditioner characterized by heating . 2. a) heating means for heating the absorbing liquid; and b) absorption by heating the absorbing liquid with the heating means.
A regenerator that evaporates part of the liquid, the gas generated by this regenerator
Condenser that cools and liquefies the liquefied refrigerant.
Evaporator that evaporates the liquefied refrigerant under low pressure.
An absorber for absorbing the evaporated vaporized refrigerant into an absorbing liquid;
A solution pump for pumping the absorbent in the collector to the regenerator;
And Bei to absorption refrigerating cycle, c) the vaporized refrigerant noncondensable gas in the absorption refrigerating cycle
With a gas introduction passage to be introduced with
Absorption liquid introduction line for introducing absorption liquid in absorption refrigeration cycle
Channel and the introduced gas flows out together with the absorbent
A ) a non-condensable gas tank for storing non-condensable gas; and e) separating the gas flowing out from the gas-liquid discharge passage from the absorbent.
The separated gas is led to the non-condensable gas tank and separated.
Gas-liquid separation for returning the separated absorbent to the absorption refrigeration cycle
In the absorption type air conditioner including the device, the auxiliary absorber is a container of the evaporator, the inside of the evaporator.
The container, the container of the absorber, or the
Absorption type air conditioner characterized by releasing heat in contact with objects
Place. 3. The absorption-type air conditioner according to claim 1 , wherein the auxiliary absorber is a container of the evaporator, a container of the evaporator, a container of the absorber, or a container of the absorber. Absorption type air conditioner characterized by contacting and releasing heat. 4. The absorption type air conditioner according to claim 3, wherein the auxiliary absorber is disposed in a state of being in contact with a refrigerant spraying device which is disposed inside the evaporator and sprays the refrigerant. Absorption air conditioner. 5. The absorption type air conditioner according to claim 3, wherein a liquefied refrigerant flows from the condenser into a container of the evaporator, and the refrigerant is self-cooled and supplied to the refrigerant disperser. An absorption type air conditioner, wherein a refrigerant cooler is disposed, and the auxiliary absorber is disposed in contact with the refrigerant cooler. 6. The absorption air conditioner according to claim 5, wherein said auxiliary absorber is disposed in contact with a refrigerant inflow side wall surface of said refrigerant cooler. 7. The absorption type air conditioner according to claim 5, wherein the refrigerant cooler is a high-temperature refrigerant cooling chamber in which liquefied refrigerant flows in from the condenser and self-cools, and the temperature of the refrigerant is lowered in the high-temperature refrigerant cooling chamber. The low-temperature refrigerant cooling chamber into which the liquefied refrigerant flows and further self-cools is separated by a partition, and the auxiliary absorber is disposed in contact with the outer wall on the high-temperature refrigerant cooling chamber side. Air conditioner.