KR100188892B1 - Absorption air-conditioning apparatus - Google Patents

Abstract

[assignment]

The welding points of the respective joint portions of the auxiliary absorber 71 are reduced as much as possible to reduce manufacturing cost and the air is prevented from entering the absorption type refrigeration cycle at each joint portion of the auxiliary absorber 71.

[Solution]

A flat auxiliary absorber 71 joined with the two press-formed plates is disposed in the absorber 19. [ The two press-formed plates forming the auxiliary absorber 71 are integrally brazed by sandwiching a gas extraction pipe constituting the gas introduction passage 74 and a pumping pipe constituting the gas-liquid discharge passage 76, When soldering, the cooling water pipe 77 is also integrally brazed. The liquid pipe constituting the absorption liquid introducing passageway 75 is not joined to the auxiliary absorber 71 and the high concentration liquid having passed through the liquid pipe is dropped into the auxiliary absorber 71 through the orifice. As described above, since the respective joint portions of the auxiliary absorber 71 are integrally joined by soldering, it can be easily manufactured. For example, even if leakage occurs at the joint portion, the auxiliary absorber 71 is in the absorber 19 Air does not enter the absorption refrigeration cycle.

Description

Absorption type air conditioner

FIG. 1 is a schematic structural view of a gas extracting apparatus. FIG.

FIG. 2 is a schematic structural view of an absorption type air conditioner. FIG.

Figure 3 is a side view of the secondary absorber.

Figure 4 is a top view of the secondary absorber.

FIG. 5 is a perspective view of the main absorber. FIG.

6 shows a cross-sectional view of the main part showing the state of the absorption-introducing passageway and the absorbing solution spraying port

7 is a side view of a conventional auxiliary absorber.

DESCRIPTION OF THE REFERENCE NUMERALS

1: absorption type air conditioner 2: heating means

3: Absorption refrigeration cycle 15: High temperature regenerator

16: low temperature regenerator 17: condenser

18: evaporator 19: absorber

48: solution pump 70: gas extraction device

71: auxiliary absorber 71a: press-formed plate

72: gas-liquid separator 73: non-condensing gas tank

74: gas introduction passage 74c: connection port

75: Absorbent solution introducing passage 75b:

76: gas-liquid discharge passage

76b: gas-liquid suction passage (portion where a siphon action occurs)

76c: gas-liquid inlet port 76d: connection port

77: Cooling water piping (cooling means)

[Technical Field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption type air conditioning apparatus capable of indoor cooling using an absorption type refrigeration cycle, and more particularly to a technology for extracting non-condensing gas in an absorption type refrigeration cycle.

[0003]

Absorption refrigeration cycle uses non-condensable absorption liquid and generates non-condensable gas such as hydrogen gas.

The non-condensable gas generated in the absorption refrigeration cycle gradually accumulates in the absorber having the lowest internal pressure in the absorption refrigeration cycle. As a result, the inner pressure of the surface absorber and the evaporator in which the non-condensable gas is accumulated increases. As a result, the boiling point of the refrigerant in the evaporator is increased to lower the evaporation capacity, thereby deteriorating the refrigerating capacity of the absorption refrigeration cycle.

Therefore, conventionally, there has been proposed a noncondensing gas extracting apparatus (hereinafter referred to as an extracting apparatus) for extracting noncondensing gas generated in an absorption type refrigeration cycle in an absorption type refrigeration cycle.

This additional device comprises a secondary absorber for alternately discharging the non-condensing gas and the absorption liquid extracted in the absorption refrigeration cycle, a gas-liquid separator for separating the non-condensing gas supplied from the secondary absorber and the absorption liquid, And a non-condensing tank for storing the non-condensing gas separated by the separator.

7, the auxiliary absorber 100 is connected to the gas introduction passageway 101 for introducing the noncondensing gas in the absorption type refrigeration cycle, and is also connected to the absorption liquid introduction passageway (not shown) for introducing the absorption liquid in the absorption type refrigeration cycle 102 are connected. The auxiliary absorber (100) is connected to a gas-liquid discharge passage (103) for alternately discharging the non-condensing gas introduced into the absorber and the absorption liquid. In addition, the auxiliary absorber 100 itself has a cylindrical shape, a box shape, or the like. The cooling water pipe 104 through which the cooling water flows is connected to the auxiliary auxiliary absorber 100 and the absorption heat generated when the vaporized refrigerant is absorbed in the auxiliary absorbent 100 is absorbed to reduce the absorption capacity of the absorption liquid .

The conventional auxiliary absorber 100 was installed outside the absorption type refrigeration cycle. Therefore, it is necessary to perform welding with excellent corrosion resistance in order to prevent the gas introduction passage 101, the absorption liquid introduction passage 102, and the gas-liquid discharge passage 103 connected to the auxiliary absorber 100 from leaking at the connection portion thereof . In addition, since the connection between the auxiliary absorber 100 and the cooling water pipe 104 is merely connected, it has been soldered.

Further, since the orifice 105 for adjusting the flow rate of the absorbing liquid must be improved in the upstream portion of the absorbing solution introducing passage 102, it is necessary to weld the orifice 105 during the absorbing solution introducing passage 102.

[PROBLEMS TO BE SOLVED BY THE INVENTION]

In order to connect the gas introduction passage 101, the absorption liquid introduction passage 102, and the gas-liquid discharge passage 103 to the auxiliary absorber 100 as described above, three portions of welding (See also arrow 7 of FIG. 7) is required in order to join the orifice 105 to the absorption liquid introduction passage 102 and the cooling water piping 104 is attached to the auxiliary absorber 100, (Refer to arrow γ in FIG. 7) was required for connection of the solder balls.

As described above, since the conventional auxiliary absorber 100 has many parts to be welded or brazed, it is difficult to manufacture the auxiliary absorber 100, and consequently, the manufacturing cost increases.

Since the conventional auxiliary absorber 100 is provided outside the absorption type refrigeration cycle, air leaks into the evaporator and the absorber of the absorption type refrigeration cycle when the leakage occurs in each welding portion, There is a problem that the cooling capability of the cycle is lowered.

[Object of the invention]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the manufacturing cost by restricting the welding portions of the respective joint portions of the auxiliary absorber to a minimum, and to prevent the occurrence of leakage in each joint portion of the auxiliary absorber, Which is capable of preventing air from entering into the absorption type air conditioner.

[MEANS FOR SOLVING THE PROBLEMS]

The absorption type air conditioning apparatus of the present invention adopts the following technical means in order to achieve the above object.

[Means of Claim 1]

The absorption type air conditioning apparatus includes: a heating means for heating an absorption liquid; a regenerator for vaporizing a part of the absorption liquid by heating the absorption liquid with the heating means; a condenser for cooling and liquefying vaporized refrigerant generated in the regenerator; An absorption refrigeration cycle including an evaporator for evaporating the liquefied liquefied refrigerant under a low pressure, an absorber for absorbing vaporized refrigerant evaporated in the evaporator, and a solution pump for feeding the absorption liquid in the absorber to the regenerator, and c) A gas-introducing passage for introducing a non-condensing gas in the cycle is connected, and a liquid-absorbing liquid introducing passage for introducing the absorbing liquid in the absorption-type refrigeration cycle is connected, and a gas-liquid discharging passage for alternately discharging the introduced gas and the absorbing liquid is connected, And an evaporator disposed inside the evaporator and containing the evaporator D) a non-condensing gas tank which is in the form of a box container and which is disposed outside the evaporation and absorption vessel and stores noncondensing gas; e) a non-condensing gas tank Wherein the large diameter pipe is formed so as to communicate with a lower portion of the evaporation and absorption vessel, and the large diameter pipe is formed so as to communicate with the lower portion of the evaporation absorption vessel, and the large diameter pipe is formed to have a double pipe structure comprising a large diameter pipe and a small diameter pipe, The other end of the pipe is formed to communicate with the non-condensing gas tank, one end of the small-diameter pipe is formed so as to communicate with the gas-liquid discharge passage, and the other end of the small-diameter pipe is opened in the portion of the large- Separating the gas discharged from the gas-liquid discharge passage from the absorption liquid, introducing the separated gas into the non-condensing gas tank, separating And a gas-liquid separator for introducing the absorbed liquid into the absorption refrigeration cycle.

[Means of Claim 2]

The absorption type refrigerator as claimed in claim 1, wherein the auxiliary absorber has a flat shape obtained by joining two press-molded plates, and each of the connection ports of the gas introduction passage, the absorption liquid introduction passage and the gas- And is formed when the press-formed plate of the sheet is aligned.

[Means of Claim 3]

In the absorption type air conditioner of claim 1, the auxiliary absorber is cooled by the cooling means so that the absorption heat generated when the vaporized refrigerant introduced into the non-condensing gas together with the absorption gas is absorbed into the absorption liquid is removed.

[Means for Claim 4]

The absorption type air conditioner according to claim 3, wherein the cooling means is a cooling water pipe through which cooling water flows, and the cooling water pipe is integrally joined by soldering together with the auxiliary absorber.

[Means for Claim 5]

The absorption type air conditioning apparatus according to any one of claims 1 to 4, wherein the gas-liquid suction passage connected to the gas-liquid discharge passage in the auxiliary absorber is inclined upward from the gas-liquid suction port and then bent vertically downward, Liquid separator is disposed below the gas-liquid suction port and the gas in the auxiliary absorber introduced from the gas-introducing passageway flows into the gas-liquid separator through the action of the absorption liquid falling from the gas- And is sucked into the gas-liquid discharge passage.

[Action and Effect of the Invention]

[Action and effect of claim 1]

The secondary absorber is disposed inside the evaporation absorption vessel. Therefore, as a joining means of the gas introduction passage, the absorption liquid introduction passage, and the gas-liquid discharge passage joined to the auxiliary absorber, it is possible to integrally solder without requiring a welding technique to more reliably prevent leakage. In addition, since it is only necessary to supply the absorbing liquid into the auxiliary absorber, it is not necessary to join the absorbing solution introducing path to the auxiliary absorber (of course, it may be joined).

As described above, since the respective joint portions of the auxiliary absorber can be integrally soldered without being individually welded, the manufacturing can be facilitated and the manufacturing cost can be reduced.

In addition, even if leakage occurs at each joint portion of the auxiliary absorber, since the portion where the leakage occurs is the inside of the absorption type refrigeration cycle, air does not invade into the absorption type refrigeration cycle. That is, since the air does not enter through the auxiliary absorber, the reliability of the absorption-type air conditioner can be enhanced.

[Action and effect of claim 2]

Since the flat auxiliary absorber is formed by joining the two press-formed plates, it is possible to avoid the problem that the container shape of the evaporator or the absorber in which the auxiliary absorber is disposed becomes large.

Further, since the two press-molded plates are joined and disposed in the evaporator or the absorber, the manufacturing cost can be reduced as a result.

[Action and effect of claim 3]

Since the absorption heat generated when the vaporized refrigerant is absorbed in the absorption liquid in the auxiliary absorption unit is removed by cooling the auxiliary absorption unit by the cooling means, deterioration of the absorption ability of the absorption liquid can be prevented, Can be absorbed. As a result, since the vaporized refrigerant in the gas supplied to the gas-liquid separator is reliably removed, only the non-condensed gas can be extracted from the gas-liquid separator to the non-condensing tank.

[Operation and Effect of Claim 4]

When the cooling water pipe through which the cooling water flows is used as the cooling means, the cooling water pipe can be joined to the auxiliary absorber integrally by one time of soldering, and consequently, the manufacturing cost can be reduced.

[Operation and Effect of Claim 5]

The gas-liquid suction passage connected to the gas-liquid discharge passage in the auxiliary absorber is inclined upward in the gas-liquid suction port and then bent in the vertical direction downward to be connected to the gas-liquid discharge passage. The gas in the auxiliary absorber is sucked into the gas-liquid discharge passage by the action (siphon action) that the liquid level of the supplied absorption liquid rises and the absorption liquid is dropped to the gas-liquid separator through the gas-liquid discharge passage at a time. Then, the gas in the auxiliary absorber is sucked into the gas-liquid discharge passage, whereby the non-condensed gas in the absorption-type refrigeration cycle can be sucked in the gas-introducing passage and introduced into the auxiliary suction device.

That is, since the noncondensible gas in the absorption refrigeration cycle can be introduced into the auxiliary absorber and the gas-liquid separator by the siphon action, the apparatus for introducing the non-condensed gas in the absorption type refrigeration cycle into the auxiliary absorber and the gas-liquid separator Device) is unnecessary, so that the cost for extracting the non-condensing gas into the non-condensing tank can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.

Hereinafter, the absorption type air conditioning apparatus of the present invention will be described in detail with reference to the embodiments shown in the drawings.

[Configuration of Embodiment]

FIGS. 1 to 6 show an embodiment of the present invention. FIG. 2 is a schematic diagram of an absorption type air conditioning system using an absorption refrigeration cycle of a dual efficiency type for air-conditioning a room.

[Outline of Absorption-type Air-conditioning System (1)] [

The absorption type air conditioning apparatus 1 to which the present embodiment is applied is a comparatively small type used in a home or the like and includes a heating means 2 for heating an absorption liquid (lithium bromide aqueous solution in this embodiment) and a double- (4) for air-conditioning the room by cold / hot water / (heating medium for cooling / heating the room, water in this embodiment) cooled or heated by the absorption type refrigeration cycle (3) A cooling water cooling means 5 for cooling the cooling water mainly used for cooling the vaporized refrigerant (water vapor in the present embodiment) in the absorption type refrigeration cycle 3, a control device 6 for controlling the mounted electric functional parts, .

[Description of Means (2)] [

The heating means 2 of the present embodiment is a gas burning apparatus for burning gas as a fuel to generate heat and to heat the absorbing liquid with the generated heat. The heating means 2 includes a gas burner 11 for burning gas, A gas supply means 12 for supplying gas to the gas burner 11, and a combustion fan 13 for supplying combustion air to the gas burner 11. As shown in Fig.

The unburner 14 of the absorption type refrigeration cycle 3 is heated by the gas obtained by the gas burning of the gas burner 11 to heat the low concentration absorbent supplied into the non-recorder 14.

[Description of the Expression Refrigeration Cycle (3)] [

The absorption type refrigeration cycle 3 includes a non-recording unit 14 heated by the heating means 2 and by heating the low concentration absorbing liquid supplied into the non-recording unit 14, the refrigerant contained in the low concentration absorbing liquid A high temperature regenerator 15 which vaporizes (evaporates) the medium to make a medium concentration absorbent; By using the condensation heat of the vaporized refrigerant in the high temperature regenerator (15) and heating the medium density absorbent supplied from the high temperature regenerator (15) side using the pressure difference, the refrigerant contained in the medium density absorbent is vaporized, A low-temperature regenerator (16) as a high-concentration absorbent; A condenser (17) for cooling and liquefying vaporized refrigerant (steam) in the high temperature regenerator (15) and the low temperature regenerator (16); An evaporator 18 for evaporating liquefied refrigerant (water) liquefied by the condenser 17 under a pressure close to a vacuum; And an absorber 19 for absorbing the vaporized refrigerant evaporated by the evaporator 18 into the high-concentration absorber obtained by the low temperature regenerator 16. [

[Description of On Player (15)

The high temperature regenerator 15 has the above-described non-irradiator 14 for heating the low concentration absorbent by the heating means 2 and the boiler tube 21 extending upward from the non-irradiator 14.

The vaporized refrigerant vaporized in the low concentration absorber by boiling in the non-regenerator 14 and the boiling cylinder 21 is sucked from the boiling cylinder 21 into the high temperature regeneration vessel 22 of the cylindrical container shape. The high-temperature vaporized refrigerant drawn into the high-temperature regeneration vessel 22 is heated by the wall of the high-temperature regeneration vessel 22 to absorb heat as vaporization heat when the heavy-density absorbent liquid in the regeneration unit 16 evaporates, Water).

In order to insulate the medium-concentration absorbent in the boiling cylinder 21 and the liquefied refrigerant (water) remaining around the boiling cylinder 21 after the refrigerant in the low-concentration absorbent liquid is vaporized by the non-recorder 14 in the high temperature regeneration vessel 22, , And the heat insulating partition tube (24) is provided around the boiling cylinder (21). The upper end of the heat insulating partition tube 24 is joined to the upper end of the booster cylinder 21 and the lower end of the heat insulating partition tube 24 is provided with a clearance from the booster cylinder 21. The lower end of the heat insulating partition tube 24 is disposed between the booster cylinder 21 and the heat insulating partition tube 24 As shown in Fig.

The liquefied refrigerant (water) liquefied in the high-temperature regeneration vessel 22 and separated to the outside of the heat insulating partition tube 24 is led to the condenser 17 through the liquefied refrigerant pipe 25 connected to the lower portion.

[Description of On Player (16)] [

The low temperature regenerator (16) has a low temperature regeneration container (31) in the form of a penetrating container which surrounds the high temperature regeneration container (22).

On the other hand, the medium-concentration absorber in the boiling cylinder 21 is supplied to the low-temperature regenerator 16 through the medium-concentration absorber pipe 26 connected to the lower portion of the boiling cylinder 21. In addition, a decompression means 27 such as an orifice is formed in the middle-concentration absorbent pipe 26. The decompression means 27 causes the medium density absorbent to flow in a state in which the pressure difference between the high temperature regenerator 15 and the low temperature regenerator 16 in which the cooling / When the switching valve 53 is opened, the medium-concentration absorbing liquid is hardly allowed to flow.

The low-temperature regenerator 16 injects the medium-concentration absorber supplied through the medium-concentration absorber pipe 26 toward the ceiling portion of the high-temperature regeneration vessel 22.

Since the temperature in the low temperature regeneration vessel 31 is lower than the temperature of the high temperature regeneration vessel 22, the pressure in the low temperature regeneration vessel 31 is lower than the pressure of the high temperature regeneration vessel 22. Therefore, the medium-concentration absorbent supplied into the low-temperature regeneration vessel 31 in the medium-concentration absorbent tube 26 is liable to evaporate. When the medium-concentration absorbing liquid is injected into the ceiling portion of the high-temperature regeneration vessel 22, the heavy-density absorbing liquid is heated by the wall of the high-temperature regeneration vessel 22 so that a part of the refrigerant contained in the medium- And the remainder becomes a high-concentration absorbed liquid.

Here, the upper side of the low temperature regeneration vessel 31 is communicated with the upper side of the annular vessel-shaped condensation vessel 32 by the communicating section 33. Therefore, the vaporized refrigerant evaporated in the low-temperature regeneration vessel 31 is supplied into the condensing vessel 32 through the communicating portion 33.

On the other hand, the high-concentration absorption liquid is dropped into the low-temperature regeneration vessel 31 and supplied to the absorber 19 through the high-concentration absorption liquid line 34 connected to the lower portion of the low-

A ceiling plate 35 is provided on the upper side of the low temperature recovery vessel 31 and a gap 36 through which vaporized refrigerant passes is formed between the outer peripheral edge of the ceiling plate 35 and the low temperature recovery vessel 31.

[Description of Accumulator 17]

The condenser (17) is covered by a condensing container (32) in the form of an annular container. A condensation heat exchanger (37) for cooling and liquefying vaporized refrigerant in the condensing container (32) is disposed in the condensing container (32). The condensing heat exchanger (37) is an annular coil, and cooling water flows in the coil. The vaporized refrigerant supplied into the condensing vessel 32 in the low temperature regenerator 16 is cooled by the condensing heat exchanger 37 to be liquefied and dropped to the lower side of the condensing heat exchanger 37.

On the other hand, the refrigerant is supplied to the lower side of the condensing vessel 32 through the liquefied refrigerant pipe 25 in the high temperature regenerator 15 described above. Further, when the supplied refrigerant is supplied into the condensing container 32, the vaporized refrigerant and the liquefied refrigerant are mixed while being boiled again by the pressure difference (low pressure of about 70 mmHg in the condensing container 32). The condensing vessel 32 is connected to a liquefied refrigerant supply pipe 38 for introducing the liquefied refrigerant to the evaporator 18. A refrigerant valve 39 for regulating the supply amount of the liquefied refrigerant supplied from the condensing vessel 32 to the evaporator 18 is provided in the liquefied refrigerant supply pipe 38.

[Description of erection (18)]

The evaporator 18 is installed in the lower portion of the condenser vessel 32 together with the absorber 19 and is covered by an evaporation and absorption vessel 41 in the form of an annular container provided around the low temperature recovery vessel 31.

And an evaporating heat exchanger 42 for evaporating the liquefied refrigerant supplied from the condenser 17 is disposed outside the inside of the evaporation and absorption vessel 41. This evaporating heat exchanger 42 is an annular coil in which cold / hot water (heating medium) supplied to the indoor air conditioning means 4 flows. The liquefied refrigerant supplied through the liquefied refrigerant supply pipe 38 in the condenser 17 is sprayed onto the evaporating heat exchanger 42 in the annular refrigerant pouring port 43 disposed on the upper portion of the evaporating heat exchanger 42 do.

Since the inside of the evaporation absorbing vessel 41 is maintained at a substantially vacuum (for example, 6.5 mmHg), the boiling point is low and the liquefied refrigerant sprayed on the evaporator heat exchanger 42 is liable to be very evaporated. The liquefied refrigerant sprayed to the evaporation heat exchanger (42) evaporates the evaporation heat from the heat medium flowing in the evaporation heat exchanger (42) and evaporates.

As a result, the heating medium flowing through the evaporator heat exchanger 42 is cooled. Then, the cooled heating medium is guided to the indoor air conditioning means 4 to cool the room.

[Explanation of handwriting (19)]

The absorber 19 is covered by the evaporation and absorption vessel 41 as described above. In the absorber 19, an absorption heat exchanger 44 for cooling the high-concentration absorption liquid supplied from the high-concentration absorption liquid pipe 34 is disposed inside the evaporation absorption vessel 41. The absorption heat exchanger (44) is an annular coil, inside which cooling water for cooling a high concentration absorption liquid sprayed on the coil is supplied. The cooling water that has passed through the absorption heat exchanger (44) passes through the heat exchanger (37) for condensation of the condenser (17) and then is guided to the cooling water cooling means (5) and cooled. Then, the cooling water cooled by the cooling water cooling means (5) is again introduced to the absorption heat exchanger (44).

On the other hand, on the upper part of the absorption heat exchanger (44), an annular absorption liquid pouring port (45) for spraying the high concentration absorption liquid supplied from the high concentration absorption liquid pipe (34) to the absorption heat exchanger (44) is disposed. The high-concentration absorption liquid sprayed on the absorption heat exchanger (44) absorbs vaporized refrigerant generated by evaporation in the evaporator (42) while falling down from the top to the bottom along the coil surface of the absorption heat exchanger . As a result, the absorption liquid dropped onto the bottom of the evaporation absorption vessel 41 becomes a low concentration absorption liquid with a reduced concentration.

A cylindrical partition wall 46 is disposed in the evaporation absorption vessel 41 between the evaporation heat exchanger 42 and the absorption heat exchanger 44. The upper part of the cylindrical partition wall 46 is opened to allow the evaporation heat exchanger 42 and the absorption heat exchanger 44 to communicate with each other so that the vaporized refrigerant generated in the evaporator 18 flows through the cylindrical partition wall 46, Through the upper part of the absorber 19.

A low concentration absorber pipe 47 is connected to the bottom of the evaporation absorption vessel 41 to supply the low concentration absorption liquid dropped to the bottom of the evaporation absorption vessel 41 to the unregister 14. A solution pump 48 is provided in the low-concentration absorbing liquid pipe 47 for supplying a low-concentration absorbing liquid from the evaporation absorbing container 41, which is in a substantially vacuum state, to the unregistering device 14.

[Description of Components other than the Elements in the Expression Refrigeration Cycle (3)] [

Reference numeral 51 in FIG. 2 is a high-temperature heat exchanger 51a for exchanging heat between the medium-concentration absorbent flowing into the low-temperature regenerator 16 in the boiling cylinder 21 and the low-concentration absorbent flowing from the absorber 19 to the non- And a low temperature heat exchanger 51b for exchanging heat between the high concentration absorbing liquid flowing from the low temperature regenerator 16 to the absorber 19 and the low density absorbing liquid flowing from the absorber 19 to the non-recorder 14.

The high-temperature heat exchanger 51a cools the intermediate-concentration absorber flowing from the boiling cylinder 21 to the low-temperature regenerator 16 and, on the contrary, heats the low-concentration absorber flowing from the absorber 19 to the non- The low temperature heat exchanger 51b cools the high concentration absorbent flowing from the low temperature regenerator 16 to the absorber 19 and heats the low concentration absorbent from the absorber 19 to the unregister 14.

In addition, in the absorption type refrigeration cycle (3) of this embodiment, heating operation means for performing heating operation in addition to cooling operation by the above-described operation is formed.

The heating operation means includes a heating pipe 52 for guiding the high-temperature absorbing liquid to the lower portion of the evaporator 18 in the lower portion of the boiling cylinder 21, a cooling / heating switching valve 53 for opening / closing the heating pipe 52, .

The cooling / heating switching valve 53 opens the valve at the time of heating operation and guides the high-temperature absorbing liquid into the evaporation absorbing container 41 to cool / The hot water is heated.

[Description of My Air-conditioning Unit (4)

The indoor air conditioning means 4 forcibly exchanges heat between 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 room air, And an indoor fan (55) for supplying the indoor fan (55).

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

The cold / hot water circuit 56 is a cold / hot water pipe for guiding the cold / hot water having passed through the evaporator 18 to the indoor heat exchanger 54 and for guiding cold / hot water heat-exchanged with the room air to the evaporator 18, There is provided a water tank 58 for storing cold and hot water in addition to the above-mentioned indoor heat exchanger 54 and cold / hot water pump 57 and having a function as an expansion tank at the time of heating and supplementing cold / hot water in the cold / hot water circuit 56 do.

The water tank 58 is connected to a water supply pipe 59 for supplying cold and hot water (tap water) to the inside thereof. The water supply pipe (59) is provided with a water supply valve (60) for supplying / stopping the cold / hot water into the water tank (58). A water level sensor (not shown) is provided in the water tank 58. When the water level in the water tank 58 is lowered, the water tank 58 is opened to fill the water tank 58 with hot water or hot water .

The water tank 58 is provided with overflow water supply means 59a for guiding the overflowed cold / hot water into a cooling water tank 65 to be described later.

[Description of each water cooling means (5)] [

The cooling water cooling means 5 includes an evaporation type cooling tower 61 and a cooling water circuit 62 for circulating the cooling water and a cooling water pump 63 for purifying the cooling water in the cooling water circuit 62.

The cooling tower 61 heat-exchanges the cooling water that has passed through the absorber 19 and the condenser 17 with the outdoor air while the cooling water flows from the upper side to the lower side to radiate heat and partially evaporate the cooling water. (61a) for spraying cooling water from the upper side, a vaporizing part (61b) having a large surface area through which the cooling water flows and a collecting part for collecting the cooling water passing through the evaporating part (61b) 61c. The cooling tower 61 is provided with a cooling water fan 64 for generating an air flow in the evaporator 61b to promote the evaporation and cooling of the cooling water in the evaporator 61b.

The cooling water circuit 62 guides the cooling water whose temperature has been raised through the absorber 19 and the condenser 17 to the cooling tower 61. The cooling water cooled by the cooling tower 61 is again supplied to the absorber 19 and the condenser 17, The cooling water circuit 62 has a cooling water tank 65 for storing cooling water in addition to the cooling tower 61 and the cooling water pump 63 described above.

The cooling water tank 65 is provided below the cooling tower 61 and below the water tank 58 so that cooling water having passed through the cooling tower 61 is supplied and water overflowed from the water tank 58 is supplied .

A water level sensor (not shown) is provided in the cooling water tank 65. When the water level in the cooling water tank 65 is lowered, the water supply valve 60 is opened to flood the water in the water tank 58, And is guided from the overflow water supply means 59a into the cooling water tank 65 so as to supplement the cooling water.

[Description of control device 6]

The control device 6 is connected to the above-described coolant valve 39, the solution pump 48, the cold / hot water pump 57, the indoor fan 55 cooling / heating switching valve 53, the water supply valve 60, (The combustion fan 13, the gas amount regulating valve 66, the gas opening / closing valve 67, the ignition device 68, etc.) of the heating means 2, (Not shown) manually set by the user or an input signal of each of a plurality of sensors installed.

[Description of Gas Extraction Apparatus 70]

1, the absorption type air conditioner 1 includes a gas extraction device 70 for extracting and storing the non-condensed gas such as hydrogen generated in the absorption type refrigeration cycle 3 in the absorption type refrigeration cycle 3, Respectively.

The gas extracting device 70 includes an auxiliary absorber 71 for alternately flowing the non-condensing gas and the absorbing liquid extracted in the absorption type refrigeration cycle 3, and an auxiliary absorber 71 for separating the non- Liquid separator 72 and a noncondensing gas tank 73 for storing the noncondensing gas separated by the gas-liquid separator 72. The gas-

The auxiliary absorber 71 is disposed in the absorber 19 (in this embodiment, inside the partition wall 46 in the evaporation and absorption vessel 41), and is disposed in the absorptive refrigeration cycle 3 The gas introducing passage 74 for introducing the non-condensing gas accumulated in the lower portion of the absorber 19 is connected to the absorber 19 and the absorber 19 in the absorption refrigerant cycle 3 A portion of the high-concentration absorbing liquid} is connected to the liquid-absorbing liquid passage 76, and a gas-liquid discharge passage 76 for connecting the introduced gas and the absorbing liquid alternately is connected.

As shown in FIGS. 3 to 5, the auxiliary absorber 71 has a flat shape formed by joining two press-forming plates 71a. The auxiliary absorber 71 is connected to a gas extracting pipe 74a and the pumping pipe 76a constituting the base discharge passage 76 are integrally brazed together with the two press forming plates 71a while being sandwiched between the two press forming plates 71a.

On the other hand, the high-concentration absorbing liquid supplied to the secondary absorber 71 is dropped into the secondary absorber 71 in the absorbing-liquid introducing passageway 75. The liquid pipe 75a constituting the absorbing-liquid introducing passageway 75 in this embodiment, 6, a funnel-shaped connection port 75b (see FIG. 3 and FIG. 4), the upper end of which is joined to the absorption liquid catching port 45 and the lower end thereof is formed at the upper end of the auxiliary absorber 71, So that the high-concentration absorbing liquid is dropped into the auxiliary absorber 71. In this way, An orifice 75c for adjusting the flow rate of the high-concentration absorbing liquid supplied to the auxiliary absorber 71 is joined to the lower end of the absorbing liquid introducing passageway 75 by soldering.

As shown in FIG. 3 and FIG. 4, the two press-formed plates 71a are provided with a secondary absorber 71 to which a non-condensing gas containing a vaporizing refrigerant and a high-concentration absorbing liquid are introduced, A gas passage 74b (connected to the gas introducing passage 74) for introducing the gas supplied from the pipe 74a to the upper side of the auxiliary absorber 71. A funnel-shaped connection port 75b for receiving the high-concentration absorption liquid in the connection port 74c (see FIG. 5) and the absorption liquid introduction passage 75 is formed.

Further, the two press-formed plates 71a are joined to each other to form a siphon type gas-liquid suction passage 76b and a connection port 76d (see FIG. 5). The gas-liquid suction passage 76b is bent upward in the vertical direction after being tilted upward in the gas-liquid suction port 76c and is connected to the gas-liquid discharge passage 76. The gas-liquid suction passage 76b is provided below the auxiliary absorber 71 , Lower than the gas-liquid inlet 76c). Therefore, when the liquid level of the absorption liquid in the auxiliary absorber 71 rises and reaches the upper water level of the gas-liquid suction passage 76b, the absorption liquid is temporarily discharged through the gas-liquid discharge passage 76 through the siphon action, When falling into the separator 72, the gas in the auxiliary absorber 71 is sucked into the gas-liquid discharge passage 76 together with the high-concentration absorbing liquid.

The gas in the auxiliary absorber 71 is sucked into the gas-liquid discharge passage 76 so that the non-condensed gas accumulated in the lower portion of the absorber 19 passes through the gas-introducing passage 74 and the gas passage 74b to the auxiliary absorber 71 Lt; / RTI >

In order to prevent the absorption capacity of the auxiliary absorber 71 from decreasing, that is, to remove the absorption heat generated when the vaporized refrigerant introduced together with the non-condensing gas is absorbed into the absorption liquid, the auxiliary absorber 71 is cooled Means. The cooling means in the present embodiment is a cooling water pipe 77 branched from the absorption heat exchanger 44 through which the cooling water flows so that the cooling water pipe 77 is provided in the groove 71b formed in the auxiliary absorber 71 (The auxiliary absorber 71 formed by the two press forming plates 71a is formed with the groove 71b (see FIG. 4) in which the cooling water pipe 77 is fitted). The brazing of the cooling water pipe 77 is carried out by the two press forming plates 71a, the gas extracting pipe 74a constituting the gas introducing passage 74, the pumping pipe 76a constituting the gas-liquid discharging passage 76, They are all soldered together. Further, the cooling water pipe 77 is joined to the absorption heat exchanger 44 again.

(Explanation of the Non-Condensable Gas Tank 73)

As shown in FIG. 1, the noncondensing gas tank 73 is disposed outside the absorption type refrigeration cycle 3, and is formed so as to store a predetermined amount of noncondensing gas. Further, a maintenance valve (not shown) is provided in the non-condensing gas tank 73, and the non-condensed gas inside is taken out through the valve at a predetermined time.

[Description of the gas-liquid separator 72]

Liquid separator 72 is disposed below the auxiliary absorber 71 and the noncondensing gas tank 73 and separates and separates the gas flowing out of the gas-liquid discharge passage 76 from the absorption liquid, as shown in FIG. Introduced gas into the noncondensing gas tank 73 through the gas discharge passage 78a and returning the separated absorption liquid to the absorber 19 of the absorption refrigeration cycle through the absorption liquid return passage 78b.

The gas-liquid separator 72 of this embodiment includes a small-diameter pipe 79 having a small diameter extending from the gas-liquid discharge passage 76 and a small-diameter pipe 79 having a large diameter surrounding the small-diameter pipe 79 (Piping constituting the gas discharge passage 78a and the absorption liquid return passage 78b).

The small-diameter pipe 79 and the large-diameter pipe 78 are formed in a U-shape. The large diameter pipe 78 has a water level equal to the water level of the low concentration absorbent in the absorber 19. The upper side of the large water pipe 78 becomes the gas discharge passage 78a and the lower side thereof becomes the absorption liquid return passage 78b. The upper end of the small-diameter pipe 79 is set below the water level, and the noncondensing gas discharged from the small-diameter pipe 79 is separated while rising in the absorption liquid and is discharged to the noncondensing gas tank 73 through the gas discharge passage 78a .

[Operation of Embodiment]

Next, the operation of the cooling operation of the absorption type air conditioning apparatus 1 and the operation of the gas extracting apparatus 70 at the time of this cooling operation will be described.

[Explanation of operation of room operation]

When the absorption type air conditioning apparatus 1 is started, the heating means 2 and the absorption type refrigeration cycle 3 are operated by the operation of each electric functional component.

In the absorption type refrigeration cycle 3, the vaporizing refrigerant is obtained from the low concentration absorbing liquid in the high temperature regenerator 15 by heating the non-recorder 14 by the heating means 2, and the vaporized refrigerant is vaporized from the medium density absorbing liquid in the low temperature regenerator 16 A refrigerant is obtained.

The vaporized refrigerant obtained in the high temperature regenerator 15 and the low temperature regenerator 16 is condensed and liquefied in the condenser 17 and then sprayed on the evaporator heat exchanger 42 of the evaporator 18, And evaporates. Therefore, the cold / hot water that has passed through the evaporator heat exchanger 42 and is cooled is supplied to the indoor heat exchanger 54 of the indoor air conditioning means 4 to cool the room.

The vaporized refrigerant evaporated in the evaporator 18 passes over the cylindrical partition wall 46 and flows into the absorber 19.

On the other hand, in the absorber 19, the high-concentration absorber supplied from the low-temperature regenerator 16 is sprayed on the absorption heat exchanger 44, and the vaporized refrigerant introduced from the evaporator 18 is absorbed into this high-concentration absorber. Further, the absorption heat generated when the vaporized refrigerant is absorbed by the high-concentration absorption liquid is absorbed by the absorption heat exchanger 44, and the lowering of the absorption capacity is prevented.

In addition, the high-concentration absorbing liquid which absorbs the vaporizing refrigerant in the absorber 19 becomes a low-concentration absorbing liquid and is returned to the non-registering unit 14 by the solution pump 48, and the above-described cycle is repeated.

[Explanation of Operation of Gas Extraction Apparatus 70]

During the above cooling operation by the absorption type refrigeration cycle 3, the airflow when the vaporized refrigerant evaporated in the evaporator 18 passes above the cylindrical partition wall 46 and flows into the absorber 19 And the non-condensed gas in the absorption refrigeration cycle 3 introduced into the evaporation and absorption vessel 41 mixed with the high concentration absorption liquid and the refrigerant becomes high in the lower portion of the absorber 19. [

On the other hand, when the above-described cooling operation by the absorption type refrigeration cycle 3 is being performed, a part of the high-concentration absorption liquid supplied to the absorption liquid pouring port 45 of the absorber 19 is introduced into the absorption liquid pouring port 45 And is supplied from the liquid pipe 75a constituting the passage 75 to the auxiliary absorber 71 through the orifice 75c.

The high concentration absorbent supplied into the auxiliary absorber 71 is sucked from the gas-liquid suction port 76c of the gas-liquid discharge passage 76 by siphon action by the gas-liquid suction passage 76b, And the absorption liquid and the non-condensed gas fall into the lower gas-liquid separator 72 alternately. The non-condensed gas in the auxiliary absorber 71 is sucked into the gas-liquid discharge passage 76 so that the non-condensed gas accumulated in the lower portion of the absorber 19 passes through the gas introducing passage 74 and the gas passage 74b, (71).

The vaporized refrigerant introduced into the auxiliary absorber 71 is absorbed by the high concentration absorber to generate absorption heat which is taken by the cooling water flowing through the inside of the cooling water pipe 77 bonded to the auxiliary absorber 71, The auxiliary absorber 71 is maintained at a low temperature and a low pressure to prevent the absorption capacity from being lowered.

Thus, the vaporized refrigerant in the gas introduced into the auxiliary absorber 71 is absorbed by the high-concentration absorbing liquid. The unabsorbed non-condensed gas is sucked into the gas-liquid suction passage 76b and the gas-liquid discharge passage 76 when a siphon action occurs in which the high-concentration absorption liquid falls through the gas-liquid suction passage 76b, Liquid separator 72 as shown in FIG.

Liquid separator 72 is separated by the gas-liquid separator 72, and the separated non-condensed gas is stored in the non-condensed gas tank 73. The separated high-concentration absorbed liquid is sucked into the absorber 19).

[Effect of Embodiment]

Since the auxiliary absorber 71 in the gas extracting apparatus 70 is disposed inside the absorber 19, the gas absorber 71 is provided as the joining means of the gas introduction passage 74 and the gas-liquid discharge passage 76 joined to the auxiliary absorber 71 Finish by soldering without welding. The liquid pipe 75a constituting the absorbent solution introducing passageway 75 and the liquid pipe 75a constituting the absorbent solution introducing passageway 75 are not joined to the auxiliary absorber 71 and the liquid pipe 75a constituting the absorbent solution introducing passageway 75 is welded as the joining means of the orifice 75c It is not necessary to finish with soldering. Therefore, it is easy to manufacture the joining portions of the auxiliary absorber 71, and the manufacturing cost can be reduced.

Even if leakage occurs at each joint portion of the auxiliary absorber 71, since the portion where the leakage occurs is the inside of the absorber 19, there is no possibility that air intrudes into the absorption-type refrigeration cycle. In other words, there is no possibility of air intrusion through the auxiliary absorber 71, so that the reliability of the absorption-type air conditioner 1 can be enhanced.

Since the auxiliary absorber 71 is cooled by the cooling water pipe 77, the absorption heat generated when the vaporized refrigerant is absorbed in the absorption liquid in the auxiliary absorber 71 can be removed to prevent the absorption capacity from being lowered, The vaporized refrigerant can be reliably absorbed into the absorption liquid in the adsorption tower 71. As a result, since the vaporized refrigerant in the gas supplied to the gas-liquid separator 72 is reliably removed, only the non-condensed gas can be sent from the gas-liquid separator 72 to the non-condensed gas tank 73. Therefore, the time when the non-condensing gas tank 73 is filled can be delayed, the frequency of the gas removing operation of the non-condensing gas tank 73 can be reduced, and the conveying ability of the non-condensing gas can be improved.

Since the auxiliary absorber 71 is formed flat by bonding the two press forming plates 71a to each other, the volume of the absorber 19 accommodating the auxiliary absorber 71 can be prevented from becoming larger. The auxiliary absorber 71, the gas introducing passage 74, the gas-liquid discharge passage 76, and the cooling water pipe 77, which are cooling means, which are formed by joining the two press-forming plates 71a, As a result, the manufacturing cost is reduced.

Liquid condensed gas in the auxiliary absorber 71 is introduced into the gas-liquid discharge passage 76 through the gas-liquid suction passage 76b by siphon action by the gas-liquid suction passage 76b formed on the upstream side of the gas- The gas in the absorber 19 can be introduced into the auxiliary absorber 71 through the gas introducing passageway 74 by being sucked. This eliminates the need for a device (for example, a pump device) for introducing the non-condensing gas in the absorption refrigeration cycle into the auxiliary absorber 71 and the gas-liquid separator 72, The cost for extracting can be reduced.

[Modifications]

In the above embodiment, the auxiliary absorber 71 is formed by joining the two press-forming plates 71a. However, the auxiliary absorber 71 may be formed by a container such as a cylindrical or box-like shape.

In the above embodiment, the auxiliary absorber 71 is disposed in the absorber 19, but the auxiliary absorber 71 may be disposed in the evaporator 18.

In the above embodiment, the cooling water pipe 77 branched from the absorption heat exchanger 44 is used as an example of the cooling, but other cooling members may be formed to contact the auxiliary absorber 71 or the like to absorb the absorption heat .

In the above-described embodiment, the cooling means is formed so as to cool the central portion of the auxiliary absorber 71, but the end of the press-formed plate 71a may be cooled by bringing it into contact with the cooling means.

In the above-described embodiment, the noncondensing gas is formed so as to be high in the lower portion of the absorber 19, and the inlet of the gas introducing passageway 74 for sucking the gas is provided below the absorber 19. However, Condensation gas may be formed in a portion (for example, an upper portion of the absorber), and an inlet of the gas introducing passage 74 may be formed in a portion where the non-condensing gas flows.

Although the gas extraction pipe 74a and the pumping pipe 76a are integrally brazed when the press-molded plate 71a is soldered, the liquid pipe 75a may also be integrally brazed, The gas extracting pipe 74a and the pumping pipe 76a may be sandwiched by the auxiliary absorber 71 only. The liquid pipe 75a may be joined to the auxiliary absorber 71 by caulking.

In the above embodiment, as an example of the absorption type refrigeration cycle, a double effect type absorption type refrigeration cycle 3 is shown. However, the absorption type refrigeration cycle may be a single effect type absorption type refrigeration cycle or a multiple effect type absorption refrigeration cycle Cycle. Although an example of injecting the medium-concentration absorbing liquid into the low-temperature regenerator from the upper side of the low-temperature regenerator 16 is shown, it may be injected from the lower side.

The gas burner 11 is used as the heating source of the heating means 2, but a petroleum burner or an electric heater may be used, or the heat of exhaust of another device (for example, an internal combustion engine) may be used.

The heat exchanger 37 for condensation, the heat exchanger 42 for evaporation, and the heat exchanger for absorption 44 are formed in the shape of a coil. However, other types of heat exchangers such as tube and pin or stacked heat exchanger may be used .

As an example of the absorption liquid, an aqueous solution of lithium bromide is exemplified, but other absorption liquids such as ammonia as a refrigerant and aqueous ammonia solution using water as an absorbent may be used.

As an example of the heating medium, tap water is used and it is shared with the cooling water of the cooling water circuit. However, other cooling medium such as another antifreeze or oil may be used as the cooling water of the cooling water circuit.

Claims (5)

a condenser for cooling and liquefying the vaporized refrigerant generated in the regenerator; a condenser for condensing the liquefied refrigerant liquefied in the condenser; An absorber for absorbing the vaporized refrigerant evaporated in the evaporator into an absorption liquid, and a solution pump for feeding the absorption liquid in the absorber to the regenerator; and c) a non-condensing refrigeration cycle in the absorption refrigeration cycle, And a gas-liquid discharge passage connected to the absorption-liquid introduction passage for introducing the absorption liquid in the absorption-type refrigeration cycle and for alternately discharging the introduced gas and the absorption liquid are connected, and the evaporator and the absorber And a flat container shape disposed inside the evaporator And a non-condensing gas tank which is disposed outside the evaporation wet-type container and stores the non-condensing gas, and e) a second condenser disposed at a lower portion of the auxiliary condenser and the non-condensing gas tank, Diameter pipe having a double pipe structure composed of a large-diameter pipe and a small-diameter pipe, both ends of which are formed in a U-shape toward the upper side, one end of the large-diameter pipe is formed so as to communicate with a lower portion of the evaporation and absorption container, And the other end of the small-diameter pipe is formed so as to be open at a portion of the large-diameter pipe facing upward, and the other end of the small- Separating the gas flowing out of the gas-liquid discharge passage from the absorption liquid, introducing the separated gas into the non-condensing gas tank, And a gas-liquid separator for introducing the gas-liquid separator into an equation refrigeration cycle. 2. The pressurizing apparatus according to claim 1, wherein the auxiliary absorber has a flat shape obtained by joining two press-formed plates, and the connection ports of the gas introduction passage, the absorption liquid introduction passage and the gas- And wherein the absorbent structure is formed when the absorbent structure is aligned. The absorption type air conditioner according to claim 1, wherein the auxiliary absorber is cooled by the cooling means so that the absorption heat generated when the vaporized refrigerant introduced into the inside together with the non-condensed gas is absorbed into the absorption liquid is removed. The absorption type air conditioner according to claim 3, wherein the cooling means is a cooling water pipe through which cooling water flows, and the cooling water pipe is joined together by soldering together with the auxiliary absorbent. The gas absorber according to any one of claims 1 to 4, wherein the gas-liquid suction passage connected to the gas-liquid discharge passage in the auxiliary absorber is bent upward in the vertical direction after being tilted upward from the gas-liquid suction port and connected to the gas- The gas-liquid separator is disposed below the gas-liquid inlet, and the gas in the auxiliary absorber introduced from the gas-introducing passage is sucked into the gas-liquid discharge passage by the action of the absorption liquid falling from the gas- And the absorption type air conditioner.