JP3017060B2 - 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 by using an absorption type refrigeration cycle, and more particularly to an absorption type refrigeration cycle for removing absorbed heat and condensing vaporized refrigerant. The present invention relates to a technique for cooling cooling water.

[0002]

2. Description of the Related Art In an absorption refrigeration cycle, an absorber absorbs absorption heat generated when a vaporized refrigerant is absorbed by an absorbing liquid, and a condenser cools the vaporized refrigerant to liquefy and condense it. Water is used. This cooling water is cooled by a cooling tower installed outside the absorption refrigeration cycle and reused. That is, the cooling water is heated in the absorption refrigeration cycle and circulates in the cooling water circuit cooled in the cooling tower.
As cooling towers that cool cooling water, evaporative cooling towers are widely used, in which cooling water is exposed to outside air to release heat, and a part of the cooling water is evaporated to remove the heat of vaporization from the cooling water to cool the cooling water. Have been.

[0003]

In the evaporative cooling tower described above, since the cooling water comes into contact with the outside air as described above, dust and soot contained in the outside air adhere to the cooling water and the cooling water becomes dirty. . On the other hand, in the evaporative cooling tower, a part of the cooling water evaporates and escapes into the outside air as described above. For this reason, simply replenishing the cooling water every time the cooling water evaporates and decreases does not involve the supply of mineral components (Mg, Si, Ca) contained in the cooling water.
Etc.), and the concentration of the cooling water in the cooling water circuit gradually increases due to dust and soot mixed therein.

[0004] If the concentration of the cooling water is increased by impurities such as dust and soot, there is a possibility that an odor due to the contamination of the cooling water from the cooling tower is generated, and the cooling water circuit is clogged with impurities.
Therefore, in the case of cooling the cooling water using an evaporative cooling tower, a drain port is provided at the bottom of the cooling water tank storing the cooling water, and a drain valve for opening and closing the drain port is opened to open the cooling water. A part of the cooling water was then drained, and then the drain valve was closed, and a blowdown operation was performed to replenish the cooling water tank with fresh cooling water, thereby preventing an increase in the concentration of the cooling water.

As described above, the drain valve is opened and closed at every blowdown during the operation of the absorption refrigeration cycle in order to prevent the concentration of the cooling water from increasing. However, the drain valve provided at the bottom is liable to cause a failure due to the adhering dust and soot and the like, and is frequently opened and closed, so that the durability of the drain valve is liable to deteriorate.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the concentration of cooling water cooled by an evaporative cooling tower and to provide a drain valve at the bottom which is frequently opened and closed. It is an object of the present invention to provide an absorption type air conditioner in which the probability of failure is reduced and durability is improved.

[0007]

[0008]

[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 cooling water circuit for removing absorption heat in the absorber and circulating cooling water for cooling the vaporized refrigerant in the condenser; d). An evaporative cooling tower that is provided in the cooling water circuit and makes the cooling water come into contact with outside air and radiates heat; e) a cooling water tank that is provided in the cooling water circuit and stores the cooling water; A certain amount of cooling in G) a first water inlet opening in the cooling water tank, a first water outlet for guiding cooling water to the outside of the cooling water tank, and g) a first water inlet and the first water inlet. An inverted U-shaped first siphon passage connecting the drain port; h-1) a low level sensor for detecting a low level water level lower than the first water intake port in the cooling water tank; i-1) A high level sensor for detecting a high level water level slightly lower than the top of the first siphon passage in the cooling water tank; j-1) when a signal indicating that the low level sensor has detected a low level water level is provided, And a control unit for supplying cooling water from the water supply unit to the cooling water tank until a predetermined amount of water is supplied after the level sensor detects the high level water level.

[0010] The absorption type air conditioner includes: a) heating means for heating the absorption liquid; and 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 the vaporized refrigerant generated by the regenerator, an evaporator that evaporates the liquefied refrigerant liquefied by the condenser under low pressure, and an absorption that absorbs the vaporized refrigerant evaporated by the evaporator into an absorbing liquid. An absorption refrigeration cycle including a solution pump for pumping the absorption liquid in the absorber to the regenerator; and c) cooling water for removing heat of absorption in the absorber and cooling vaporized refrigerant in the condenser. A cooling water circuit for circulating the cooling water; d) an evaporative cooling tower provided in the cooling water circuit for contacting the cooling water with the outside air to radiate heat; and e) cooling provided for the cooling water circuit and storing the cooling water. Water tank and f) this Water supply means for supplying a predetermined amount of cooling water into the cooling water tank, and g) a first water inlet opening in the cooling water tank, and a first drain port for guiding the cooling water to the outside of the cooling water tank. An inverted U-shaped first siphon passage connecting the first water inlet and the first water outlet; h-2) a low-level water level lower than the first water inlet in the cooling water tank; J-2) control means for supplying cooling water from the water supply means into the cooling water tank until a predetermined amount of water is supplied after the low level sensor detects the low level water level; It is characterized by having.

According to a third aspect of the present invention, the absorption type air conditioner includes: a) heating means for heating the absorption liquid; and 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 the vaporized refrigerant generated by the regenerator, an evaporator that evaporates the liquefied refrigerant liquefied by the condenser under low pressure, and an absorption that absorbs the vaporized refrigerant evaporated by the evaporator into an absorbing liquid. An absorption refrigeration cycle including a solution pump for pumping the absorption liquid in the absorber to the regenerator; and c) cooling water for removing heat of absorption in the absorber and cooling vaporized refrigerant in the condenser. A cooling water circuit for circulating the cooling water; d) an evaporative cooling tower provided in the cooling water circuit for contacting the cooling water with the outside air to radiate heat; and e) cooling provided for the cooling water circuit and storing the cooling water. Water tank and f) this Water supply means for supplying a predetermined amount of cooling water into the cooling water tank, and g) a first water inlet opening in the cooling water tank, and a first drain port for guiding the cooling water to the outside of the cooling water tank. An inverted U-shaped first siphon passage connecting the first water inlet and the first water outlet; h-3) a low-level water level lower than the first water inlet in the cooling water tank; I-3) a high level sensor for detecting a high level water level slightly higher than the top of the first siphon passage in the cooling water tank; and j-3) a low level water level sensor for detecting the low level water level. And a control means for supplying cooling water from the water supply means into the cooling water tank until the high level sensor detects a high level water level.

According to a fourth aspect of the present invention, the absorption type air conditioner includes: a) heating means for heating the absorption liquid; and b) a regenerator for heating the absorption liquid by the heating means to vaporize a part of the absorption liquid. A condenser that cools and liquefies the vaporized refrigerant generated by the regenerator, an evaporator that evaporates the liquefied refrigerant liquefied by the condenser under low pressure, and an absorption that absorbs the vaporized refrigerant evaporated by the evaporator into an absorbing liquid. An absorption refrigeration cycle including a solution pump for pumping the absorption liquid in the absorber to the regenerator; and c) cooling water for removing heat of absorption in the absorber and cooling vaporized refrigerant in the condenser. A cooling water circuit for circulating the cooling water; d) an evaporative cooling tower provided in the cooling water circuit for contacting the cooling water with the outside air to radiate heat; and e) cooling provided for the cooling water circuit and storing the cooling water. Water tank and f) this Water supply means for supplying a predetermined amount of cooling water into the cooling water tank, and g) a first water inlet opening in the cooling water tank, and a first drain port for guiding the cooling water to the outside of the cooling water tank. An inverted U-shaped first siphon passage connecting the first water inlet and the first water outlet; j-4) a counter for counting the operation time of the absorption refrigeration cycle; Control means for supplying a predetermined amount of cooling water capable of reaching a water level at the top of the siphon from the water supply means into the cooling water tank every time the count time reaches a set time. And

According to a fifth aspect of the present invention, the absorption type air conditioner according to any one of the first to fourth aspects further includes an on-off valve for opening and closing the first siphon passage, and the cooling device which is lower than the first water supply port. An inverted U-shape that includes a second water inlet opening at a lower portion in the water tank and a second water outlet that guides cooling water to the outside of the cooling water tank, and connects the second water inlet and the second water outlet. And the first siphon passage and the second siphon passage have a common passage, and the on-off valve opens and closes the first water inlet. [Means of Claim 6] The absorption type air conditioner according to any one of Claims 1 to 5, wherein the overflowing means for discharging the cooling water rising upward from the top of the first siphon passage to the outside of the cooling water tank. It is characterized by having.

[0014]

[0015]

[0016]

[0017]

[Function and Effect of the Invention] [Operation and Effect of Claim 1] As the cooling water evaporates by the cooling tower, the water level in the cooling water tank decreases. When the water level in the cooling water tank drops to the low level water level, the low level sensor outputs a signal indicating that the water level has dropped to the low level water level to the control device. Then, the control device outputs a signal to the effect that the water level in the cooling water tank has reached the high level water level to the control device, and thereafter, until a predetermined amount of cooling water is supplied into the cooling water tank. Then, new cooling water is supplied to the cooling water tank by the water supply means.

As described above, when the water level in the cooling water tank exceeds the top of the first siphon passage, a siphon action is generated by the first siphon passage, and the cooling water exceeding the first water inlet is drained from the first siphon. . in this way,
When the low-level sensor detects the low-level water level, the blow-down operation is performed.If the amount of evaporation in the cooling tower is large, the frequency of falling to the low-level water level increases, and the blow-down operation is performed frequently. When the amount is small, the blowdown operation is also performed less. As a result, excessive blowdown operation is suppressed, and waste of cooling water supply can be eliminated.

[Action and Effect of Claim 2] As the cooling water evaporates by the cooling tower, the water level in the cooling water tank decreases. When the water level in the cooling water tank drops to the low level water level, the low level sensor outputs a signal indicating that the water level has dropped to the low level water level to the control device. Then, the control device supplies new cooling water to the cooling water tank until a predetermined amount of cooling water is supplied into the cooling water tank.

As described above, when the water level in the cooling water tank exceeds the top of the first siphon passage, a siphon action is generated by the first siphon passage, and the cooling water exceeding the first water inlet is drained from the first siphon. . in this way,
When the low-level sensor detects the low-level water level, the blow-down operation is performed.If the amount of evaporation in the cooling tower is large, the frequency of falling to the low-level water level increases, and the blow-down operation is performed frequently. When the amount is small, the blowdown operation is also performed less. As a result, excessive blowdown operation is suppressed, and waste of cooling water supply can be eliminated.

[Operation and Effect of Claim 3] As the cooling water evaporates by the cooling tower, the water level in the cooling water tank decreases. When the water level in the cooling water tank drops to the low level water level, the low level sensor outputs a signal indicating that the water level has dropped to the low level water level to the control device. Then, the control device supplies new cooling water to the cooling water tank by the water supply unit until the high level sensor outputs a signal indicating that the water level in the cooling water tank has reached the high level water level to the control device.

As described above, when the water level in the cooling water tank exceeds the top of the first siphon passage, a siphon action is generated by the first siphon passage, and the cooling water exceeding the first water inlet is drained from the first siphon. . in this way,
When the low-level sensor detects the low-level water level, the blow-down operation is performed.If the amount of evaporation in the cooling tower is large, the frequency of falling to the low-level water level increases, and the blow-down operation is performed frequently. When the amount is small, the blowdown operation is also performed less. As a result, excessive blowdown operation is suppressed, and waste of cooling water supply can be eliminated.

[Operation and Effect of Claim 4] Regardless of the water level in the cooling water tank, every time the operation time of the absorption refrigeration cycle reaches the set time, the amount of water operated by the siphon is changed from the water supply means into the cooling water tank. Supplied to
Reduce the concentration of cooling water in the cooling water tank. As a result, an increase in the concentration of the cooling water can be suppressed without using a water level sensor, and the cost of the absorption air conditioner can be reduced.

[Function and Effect of Claim 5] Cooling water is supplied from the water supply means into the cooling water tank with the first siphon passage closed by the on-off valve. When the water level in the cooling water tank exceeds the top of the second siphon passage, a siphon action is generated by the second siphon passage, so that the cooling water in the cooling water tank is lower than the first suction port at the bottom of the cooling water tank. The water is sucked from the second water inlet and drained from the second drain through the second siphon passage. When the water level in the cooling water tank reaches the second water inlet, the generation of the siphon action by the second siphon passage stops, and the drainage of the cooling water by the second siphon passage stops. Since the cooling water discharged from the second siphon passage is discharged from the lower part of the cooling water tank to the outside via the second siphon passage, unnecessary substances accumulated in the lower part of the cooling water tank are discharged to the outside of the cooling water tank. can do. Further, since almost all of the cooling water in the cooling water tank can be replaced, the cooling water circuit can be efficiently cleaned.

[Advantage and Effect of Claim 6] When the first siphon passage (or the second siphon passage shown in claim 5) is closed, the first siphon passage (or the second siphon passage) does not work even if the water level exceeds the top of the siphon passage. Although the water level rises without the siphon action of the two siphon passages occurring, when the water level exceeds a predetermined water level, the cooling water is discharged to the outside of the cooling water tank by the overflow means. For this reason, even if the first siphon passage (or the second siphon passage) is closed, it is possible to eliminate the problem that the cooling water overflows into the absorption air conditioner.

[0026]

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. FIGS. 1 to 6 show a first embodiment, and FIG. 1 is a schematic configuration of an absorption type 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 the present embodiment is applied is a relatively small type used for home use or 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 the 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 of the liquid. 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 regeneration vessel 22, the middle liquid in the boiling cylinder 21 after the refrigerant in the low liquid is vaporized by being heated by the boiler 14 is insulated from the liquefied refrigerant (water) stored around it. 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 part 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, the pressure difference (the pressure inside the condensing container 32 is about 70 mmHg).
From low pressure), the mixture is reboiled, and supplied in a state where the vaporized refrigerant and the liquefied refrigerant are mixed. 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. 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), it has a low boiling point, and the liquefied refrigerant sprayed to the evaporating heat exchanger 42 is very easy to evaporate. The liquefied refrigerant sprayed on the evaporating heat exchanger 42 evaporates by removing 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. Then, 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 arranged 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.

Inside the evaporative absorption container 41, a cylindrical partition wall 4 is provided between the evaporating heat exchanger 42 and the absorbing 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 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.

(Explanation of the 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. 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.

The cistern 58 is connected to a water supply pipe 59 for supplying cold / hot water (tap water) to the inside. 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. The cistern 58 is provided with overflow water supply means 59a for guiding the overflowed cold / hot water as cooling water into a cooling water tank 65 described later. That is, the water supply pipe 59 and the overflow water supply means 59a constitute a water supply means for supplying the cooling water into the cooling water tank 65.

(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 provided below the cooling tower 61 and at the cistern 5.
8 is provided so that the cooling water that has passed through the cooling tower 61 is supplied and the water that overflows in the cistern 58 is supplied.

As shown in FIG. 2, the cooling water tank 65 has a first siphon passage 66 for discharging a part of the cooling water to the outside by a siphon action, and a second siphon for discharging a part of the cooling water to the outside. A passage 67 is provided.
The first siphon passage 66 has a first water inlet 66 a opening at a water level a where a predetermined amount (for example, 14 liters) of cooling water is stored in the cooling water tank 65, and a first water inlet 66 a opening near the bottom of the cooling water tank 65. This is an inverted U-shaped passage having a drain port 66b, and the top of the first siphon passage 66 has a predetermined amount (for example, 16 liters) of cooling water in the cooling water tank 65.
It is provided at the stored water level b.

The second siphon passage 67 of this embodiment has a passage partially common to the first siphon passage 66, and the second siphon passage 67 has a second water inlet opening below the cooling water tank 65. 67a and a second drain port 67b that opens near the bottom of the cooling water tank 65. The inverted U-shaped passage has the same top level as the top of the first siphon passage 66. In b, the second drain port 67b is common to the first drain port 66b.

The first water inlet 66a is provided with the first water inlet 6
6a, the first siphon passage 66 is opened and closed.
And an on-off valve 68 for closing only the second siphon passage 67 is provided. The on-off valve 68 is provided for the cooling water circuit 6 periodically (for example, when the cooling operation is performed every 72 hours).
It is closed so as to be able to replace the cooling water in the cooling water tank 65 with almost all of the cooling water in the cooling water tank 65 (the cleaning function described later). As a result, the opening and closing frequency of the on-off valve 68 is very low.

The cooling water tank 65 has first and second cooling water tanks.
An overflow means 69 is provided for discharging the cooling water rising above the tops of the siphon passages 66 and 67 to the outside of the cooling water tank 65. Overflow means 6 of this embodiment
9 is a case where a predetermined amount of cooling water (for example, 1
The cooling water that has risen above the stored water level c is discharged to the outside of the absorption air conditioner 1 through the drain passage 70. In the present embodiment, the first and second drain ports 66b and 67b are provided to open in the overflow means 69, and the first and second drain ports 66b and 67b are provided.
The cooling water flowing out of b and 67b is discharged to the outside of the absorption air conditioner 1 through the drain passage 70.

Further, in the cooling water tank 65, a low level water level d set lower than the first water intake port 66a (for example, a water level of 12 liters which is 2 liters less than the water level a of the first water intake port 66a). Low level sensor 7 to detect
1 and a high-level sensor 72 that detects a high-level water level set higher than the low-level water level (for example, a 16-liter water level b ′ that is 4 liters higher than the low-level water level d). In addition, high level water level b '
Is set slightly lower than the water level b at the top of the first and second siphon passages 66 and 67.

When the low-level sensor 71 detects the low-level water level d, a blow-down operation by the control device 6 is activated in response to the detection signal. As shown in the flowchart of FIG. 4, the blowdown operation by the control device 6 causes the low level sensor 71 to output the low level water d
Is detected, the water supply valve 60 is opened (step S1,
S2). When the water supply valve 60 is opened, the water overflowing from the cistern 58 is guided into the cooling water tank 65 via the overflow water supply means 59a, and replenishes the cooling water tank 65 with cooling water. When a predetermined time elapses after the high level sensor 72 detects the high level water level b ', the water supply valve 60 is closed (steps S3 and S4), and the process returns. The predetermined time is equal to the water level b at the top of the first and second siphon passages 66 and 67 from the high level water level b '.
May be a small time (for example, 2 seconds) required to reach the threshold value.

When the water level in the cooling water tank 65 reaches the water level b at the top of the first and second siphon passages 66 and 67, a siphon action by the first siphon passage 66 occurs.
Cooling water in the cooling water tank is sucked from the first water inlet 66a, and is discharged through the first siphon passage 66 to the first drain port 66a.
The water is drained from the drainage passage 70 via b. Then, when the water level in the cooling water tank 65 drops to a water level a ′ (not shown) slightly lower than the water level a of the first water intake port 66a, the first
Air enters the first siphon passage 66 from the water intake port 66a to stop the siphon action, and the cooling water tank 65
The cooling water inside is at the water level a ′.

(Explanation of the control device 6) The control device 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 73, gas on-off valve 74, ignition device 75
) 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.

The control device 6 is provided with a washing function for replacing almost all the cooling water in the cooling water tank 65 when the cooling operation is switched from the cooling operation to the heating operation and when a washing switch (not shown) is turned on. Have been. As shown in the flowchart of FIG. 5, this cleaning function is performed when the cooling operation is switched to the heating operation, or when the cleaning switch is turned on (steps S11 and S12), the on-off valve 68 is closed, and the water supply valve 60 is closed. Open (steps S13, S14).
When the water supply valve 60 is opened, the water overflowing from the cistern 58 is guided into the cooling water tank 65 via the overflow water supply means 59a, and replenishes the cooling water tank 65 with cooling water. When a predetermined time elapses after the high level sensor 72 detects the high level water level b ', the water supply valve 60 is closed (steps S15 and S16).

When the water level in the cooling water tank 65 exceeds the tops of the first and second siphon passages 66 and 67,
The siphon action is generated by the second siphon passage 67, and the cooling water in the cooling water tank is sucked from the second water inlet 67 a near the bottom in the cooling water tank 65, and the second drain is discharged through the second siphon passage 67. 67b and drainage passage 7
Drained from zero.

After the water supply valve 60 is closed, the time when almost all of the cooling water in the cooling water tank 65 has been drained by the second siphon passage 67 has elapsed (step S1).
7) Then, the water supply valve 60 is opened again (step S18). When the water supply valve 60 is opened, the water overflowing from the cistern 58 is guided into the cooling water tank 65 via the overflow water supply means 59a, and replenishes the cooling water tank 65 with cooling water. When a predetermined time has passed since the high level sensor 72 detected the high level water level b '(step S19),
The water supply valve 60 is closed, and the on-off valve 68 is opened (steps S20 and S21), and the process returns. After drainage, the opening and closing valve 68 may be opened before the water supply valve 60 is opened.

When the water level in the cooling water tank 65 reaches the water level b at the top of the first and second siphon passages 66 and 67, a siphon action by the first siphon passage 66 occurs as in the blowdown operation described above. Then, the cooling water in the cooling water tank 65 is sucked from the first water inlet 66a,
The water is drained from the drain passage 70 through the first drain port 66b through the first siphon passage 66. Then, when the water level in the cooling water tank 65 drops to the water level a of the first water intake port 66a, since the on-off valve 68 is opened, the generation of the siphon action by the first siphon passage 66 stops, and the cooling water tank The cooling water in 65 has a water level a.

[Operation of Embodiment] Next, the absorption air conditioner 1
The operation of the cooling operation and the operation of the blow-down operation 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
The heating means 2 heats the boiler 14, so that the high-temperature regenerator 15 and the low-temperature regenerator 16 take out the vaporized refrigerant and the low-temperature regenerator 16 takes out the high 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 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 cold and hot water cooled by passing through the evaporating heat exchanger 42 is supplied to the indoor heat exchanger 54 of the indoor air-conditioning unit 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. In addition, the absorption heat generated when the vaporized refrigerant is absorbed by the high liquid is absorbed by the absorption heat exchanger 44, so that the absorption capacity is prevented 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 Operation of Blowdown Operation) During the above-mentioned cooling operation by the absorption refrigeration cycle 3, the cooling water heated by the condenser 17 and the absorber 19 is cooled by the cooling water fan in the evaporator 61b of the cooling tower 61. The heat is forcibly dissipated by the outside air blown by the cooling air 64, and a part of the cooling water evaporates. Therefore, the cooling water at the water level a gradually decreases by the previous blow-down operation of the cooling water.

When the cooling water evaporates and the water level in the cooling water tank 65 reaches the low level water level d, the control device 6 starts the blowdown operation. That is, the control device 6 opens the water supply valve 60 and supplies about 4 liters of cooling water to the cooling water tank 65 until reaching the water level b. Of the supplied cooling water, the first 2 liters are used for refilling the cooling water tank 65, and the subsequent 2 liters of cooling water are used for dilution. Then, excess cooling water used for dilution is discharged through the first siphon passage 66. At this time, the on-off valve 68 is closed to drain the water through the second siphon passage 67, and the low level sensor 7
When 1 detects the low level water level d, the on-off valve 68 is opened, the drainage is stopped, and water is again supplied to the water level a so that drainage from the bottom can be performed.

Next, the equilibrium concentration of the cooling water will be described. First, as shown in FIG. 6A, the cooling water in the cooling water tank 65 reaches the water level a, the amount of cooling water in the cooling water tank 65 at this time is H, and the concentration ratio at this time is x. And Here, as shown in FIG. 6 (b), B amount of cooling water is added,
When the cooling water is diluted, the cooling water concentration ratio is represented by the following equation. When the cooling water of the B amount is added, the cooling water of the B amount is discharged by the siphon action from the first siphon passage 66, and the cooling water in the cooling water tank 65 is discharged as shown in FIG. The water level is returned to a.

(Equation 1)

As shown in FIG. 6D, when the cooling water evaporates in the cooling tower 61 and the cooling water evaporates in the E amount (when the water level in the cooling water tank 65 reaches the low level water level d). )
Of the cooling water is expressed by the following equation.

(Equation 2)

As shown in FIG. 6E, when the cooling water is supplied into the cooling water tank 65 in the amount E, the concentration ratio of the cooling water is represented by the following equation.

(Equation 3)

That is, in the equilibrium state, FIG.
The concentration ratio is the same as that of FIG. 6E, and the concentration ratio x (ave) in the equilibrium state is represented by the following equation. It should be noted that the calculation and setting conditions are such that the evaporation in the supply water is not expected, and the concentration in the cooling water tank 65 is uniform.

(Equation 4)

Here, when the cooling water in the cooling water tank 65 is at the water level a, the water amount H is 14 liters, the water amount E replenished by evaporation is 2 liters, and the water amount B supplied for dilution is B
Is 2 liters, for example, the equilibrium state at this time is 2.14 when each value is substituted into the above equation 4. On the other hand, the maximum enrichment ratio is determined by the above numerical values (water amount H =
(14 liters, water amount E = 2 liters, water amount B = 2 liters) by substituting into Equation 3, the maximum enrichment ratio is 2.
It becomes 33.

[Effect of Embodiment] The absorption air conditioner 1 dilutes the cooling water in the cooling water circuit 62 by the siphon action of the first siphon passage 66. As a result, the drain valve can be eliminated, the cost can be reduced, and the malfunction of the drain valve can be prevented, so that the reliability of the absorption air conditioner 1 can be improved.

When the low level sensor 71 detects the low level water level d, the controller 6 opens the water supply valve 60 to perform the blowdown operation. Therefore, when the evaporation amount in the cooling tower 61 is large, the blowdown operation is also performed. In many cases, when the evaporation amount is small, the blowdown operation is also performed in a small amount.As a result, insufficient dilution can be prevented, and excessive blowdown operation can be suppressed. Can be.

When the first siphon passage 66 or the second siphon passage 67 is blocked by dust or the like, the water level in the cooling water tank 65 becomes equal to the first and second siphon passages 6.
The water level rises without the siphon action occurring even when the top of 6, 67 is exceeded. However, when the cooling water in the cooling water tank 65 exceeds the water level c, the cooling water exceeding the water level c is discharged to the outside of the cooling water tank 65 by the overflow means 69. Therefore, even if the first siphon passage 66
Even if the second siphon passage 67 is closed, there is no problem that the cooling water overflows into the absorption air conditioner 1.

In the present embodiment, the second siphon passage 67 is provided so that the cooling water in the cooling water tank 65 is almost completely replaced at the time of switching from the cooling operation to the heating operation or by manual operation. Cleaning within 62 was enabled. As a result, the inside of the cooling water circuit 62 can be easily cleaned, and at the time of this cleaning, the cooling water is sucked from near the bottom of the cooling water tank 65 and discharged to the outside. Can be discharged to the outside of the cooling water tank 65. Further, in this embodiment, since the first siphon passage 66 and the second siphon passage 67 are configured to be shared, the cost of the first siphon passage 66 and the second siphon passage 67 can be reduced.

In the first embodiment, a predetermined amount of water is supplied by time management. However, the cooling water supplied to the cooling water tank 65 via the water supply pipe 59 is detected by providing a water amount sensor or the like. Alternatively, a predetermined amount of water supply may be managed by water amount management.

[Second Embodiment] FIG. 7 is a schematic configuration diagram of a cooling water tank 65 showing a second embodiment. In the above-described first embodiment, an example in which the first siphon passage 66 and the second siphon passage 67 are provided in common has been described, but in this embodiment, the first siphon passage 66 and the second siphon passage 66 are provided. 6
7 are provided separately.

[Third Embodiment] In the first and second embodiments, when the low level sensor 71 detects the low level water level d, the controller 6 opens the water supply valve 60 to perform the blowdown operation. In the present embodiment, the cooling operation time is counted by a counter (not shown) in the control device 6, and the control is performed every time the counting time reaches a preset time. Device 6
Opens the water supply valve 60 and supplies the cooling water tank 65 with a predetermined amount of cooling water (at least, the amount of cooling water required to supply the cooling water necessary for generating the siphon action by the first siphon passage 66). The blowdown operation is performed. The management of the predetermined amount may be water amount management using a water amount sensor or time management using a timer.

In this embodiment, the low level sensor 71 and the high level sensor 72 shown in the first and second embodiments can be eliminated, and the cost of the absorption type air conditioner 1 can be reduced by reducing the number of parts. Can be.

[Modification] In the above embodiment, when the low-level sensor 71 detects the low-level water level d, the control device operates until the predetermined time elapses after the high-level sensor 72 detects the high-level water level b '. 6 is a water supply valve 6
Although the example in which the cooling water is supplied into the cooling water tank 65 by opening 0 is shown, the high level sensor 72 is abolished and the low level sensor 71 detects the low level water level d. The control device 6 controls the water supply valve 60
May be opened to supply the cooling water into the cooling water tank 65.

The high-level sensor 72 is provided so as to detect a high-level water level b 'slightly higher than the top of the first siphon passage 66. When the low-level sensor 71 detects a low-level water level d, the high-level sensor 72 turns on. The control device 6 may open the water supply valve 60 and supply the cooling water into the cooling water tank 65 until the high level water level b ′ is detected. In this case, the supply flow rate (supply speed) to the cooling water tank 65 needs to be larger than the discharge flow rate (discharge rate) of the siphon.

In the above embodiment, as a water supply means for supplying cooling water into the cooling water tank 65, a water supply pipe 59 for guiding water to the cistern 58, and water overflowing from the cistern 58 is cooled through the cooling tower 61. Water tank 65
Although the overflow water supply means 59a for guiding the cooling water is used, the cooling water may be directly provided to the cooling water tank 65.

In the above embodiment, the double-effect absorption refrigeration cycle 3 has been described as an example of the absorption-type refrigeration cycle. However, 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 solution, other absorbing solutions 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 an absorption type air conditioner (first embodiment).

FIG. 2 is a schematic configuration diagram of a cooling water circuit (first embodiment).

FIG. 3 is a plan view of a cooling water tank (first embodiment).

FIG. 4 is a flowchart showing an operation of a blow-down operation by a control device (first embodiment).

FIG. 5 is a flowchart showing the operation of the cleaning operation by the control device (first embodiment).

FIG. 6 is an explanatory diagram of the concentration of cooling water in a water supply tank (first example)
Example).

FIG. 7 is a schematic configuration diagram of a cooling water tank (second embodiment).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Absorption air conditioner 2 Heating means 3 Absorption refrigeration cycle 5 Cooling water cooling means 6 Controller 15 High temperature regenerator 16 Low temperature regenerator 17 Condenser 18 Evaporator 19 Absorber 48 Solution pump 59 Water supply pipe (water supply means) 59a Overflow Water supply means (water supply means) 61 Cooling tower 62 Cooling water circuit 65 Cooling water tank 66 First siphon passage 66a First water inlet 66b First drain 67 Second siphon passage 67a Second water inlet 67b Second drain 68 Valve 69 Overflow means 71 Low level sensor 72 High level sensor

Continuation of the front page (56) References JP-A-52-116947 (JP, A) JP-A-54-75646 (JP, A) JP-A-6-317394 (JP, A) , U) Jikken 48-31004 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F25B 15/00 F25B 15/00 306 F28F 27/00 501

Claims (6)

(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; c) a cooling water circuit for removing heat of absorption in the absorber and circulating cooling water for cooling the vaporized refrigerant in the condenser; d) An evaporative cooling tower that is provided in the cooling water circuit and radiates heat by contacting the cooling water with the outside air; e) a cooling water tank that is provided in the cooling water circuit and stores the cooling water; Supply a predetermined amount of cooling water G) a first water inlet opening in the cooling water tank, a first water outlet for guiding cooling water to the outside of the cooling water tank, and the first water inlet and the first water outlet. a first siphon passage of inverted U-shape for connecting the door, h-1) the first water inlet in the cooling water tank
Low-level sensor that detects low-level water levels
When, i-1) wherein in the cooling water tank first siphon
To detect a high level water level slightly lower than the top of the
And Lee level sensor, j-1) the low level sensor detects a low level water level
When the high level sensor is supplied with the
From the detection of the level water level to the supply of a predetermined amount of water,
The cooling water is supplied from the water supply means into the cooling water tank.
Absorption air conditioning system and a Cormorant control means. 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 for liquefying of the refrigerant is cooled and liquefied in the condenser
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, with take the heat of absorption in c) said absorber, said coagulation
Cooling water circulation that circulates cooling water that cools vaporized refrigerant with a compressor
And road, d) provided in the cooling water circuit, of touching the cooling water to the outside air
And evaporating the cooling tower for heat dissipation by, e) cooling water for storing cooling water provided in the cooling water circuit
To supply a predetermined amount of cooling water to the tank and, f) the cooling water tank
A water supply means, g) a first water inlet opening at the cooling water tank, the cooling water
And a first drain port for guiding the cooling water to the outside of the cooling water tank.
An inverted U-shaped connecting the first water inlet and the first water outlet.
A first siphon passage; h-2) a low level sensor for detecting a low level water level lower than the first water intake port in the cooling water tank; j-2) the low level sensor detecting a low level water level. after until a predetermined amount of water supplied, Bei <br/> example Ru absorption air conditioning apparatus and control means for supplying cooling water from the water supply means to the cooling water tank. 3. A heating means for heating the absorbing liquid, and b) absorbing the absorbing liquid 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, with take the heat of absorption in c) said absorber, said coagulation
Cooling water circulation that circulates cooling water that cools vaporized refrigerant with a compressor
And road, d) provided in the cooling water circuit, of touching the cooling water to the outside air
And evaporating the cooling tower for heat dissipation by, e) cooling water for storing cooling water provided in the cooling water circuit
To supply a predetermined amount of cooling water to the tank and, f) the cooling water tank
A water supply means, g) a first water inlet opening at the cooling water tank, the cooling water
And a first drain port for guiding the cooling water to the outside of the cooling water tank.
An inverted U-shaped connecting the first water inlet and the first water outlet.
A first siphon passage; h-3) a low level sensor for detecting a low level water level lower than the first water intake port in the cooling water tank; i-3) a first siphon passage in the cooling water tank. J-3) When a signal indicating that the low-level sensor detects the low-level water level is given, j-3) the high-level sensor detects the high-level water level until the high-level sensor detects the high-level water level. the suction from the water supply means Ru and control means for supplying cooling water to the cooling water tank <br/> Osamushiki air conditioner. 4. A heating means for heating the absorbing liquid, and b) absorbing the absorbing liquid 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, with take the heat of absorption in c) said absorber, said coagulation
Cooling water circulation that circulates cooling water that cools vaporized refrigerant with a compressor
And road, d) provided in the cooling water circuit, of touching the cooling water to the outside air
And evaporating the cooling tower for heat dissipation by, e) cooling water for storing cooling water provided in the cooling water circuit
To supply a predetermined amount of cooling water to the tank and, f) the cooling water tank
A water supply means, g) a first water inlet opening at the cooling water tank, the cooling water
And a first drain port for guiding the cooling water to the outside of the cooling water tank.
An inverted U-shaped connecting the first water inlet and the first water outlet.
A first siphon passage; and j-4) a counter for counting the operation time of the absorption refrigeration cycle. Control means for supplying a predetermined amount of cooling water that can reach the top water level
An absorption type air conditioner including a step . Any of the absorption type air-conditioning apparatus 5. The method of claim 1 to claim 4, wherein the provided with a closing valve for opening and closing the first siphon passageway, the bottom of lower than the first water inlet and the cooling water tank An inverted U-shaped second siphon passage for connecting the second water inlet and the second water outlet, the second water inlet having a second water inlet opening at the bottom, and a second water outlet for guiding cooling water to the outside of the cooling water tank. And the first siphon passage and the second siphon passage,
An absorption type air conditioner, comprising a common passage, wherein the on-off valve opens and closes the first water inlet. 6. The absorption according to any one of claims 1 to 5.
The air conditioner includes a cooling device that rises above the top of the first siphon passage.
Overflow for discharging water out of the cooling water tank
An absorption type air conditioner comprising means.