JPH1026436A - Regenerator of absorption refrigeration cycle machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the size and simplification of the overall structure of an absorption refrigeration cycle machine and to reduce constituent materials and weight. An end portion (13a) of a vapor-liquid separator (13) of a high-temperature regenerator (1) on a steam outlet side is also used as a header (31) on a vapor inlet side of a low-temperature regenerator (3). [Effect] The high-temperature regenerator and the low-temperature regenerator are directly connected without omitting the large-diameter steam pipe, so that the entire structure of the refrigeration cycle machine equipped with such a regenerator can be reduced in size and simplified. it can. In addition, since there is no steam pipe, the material of the apparatus is reduced correspondingly, so that the weight and the manufacturing cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator including a high-temperature regenerator and a low-temperature regenerator, among regenerators of an apparatus operating in an absorption refrigeration cycle, such as an absorption air conditioner or an absorption refrigerator.

[0002]

2. Description of the Related Art A double-effect absorption refrigeration cycle machine is provided with a high-temperature regenerator and a low-temperature regenerator, and uses refrigerant vapor evaporated on the high-temperature side as heating vapor on the low-temperature side. Conventionally, a high-temperature regenerator and a low-temperature regenerator have been connected by a steam pipe. However, since this pipe flows a vapor having a large specific volume, the pipe has a very large diameter as compared with the pipe for absorbing liquid. For this reason, this piping structure has been an obstacle to downsizing the entire structure of the absorption refrigeration cycle machine. In addition, the materials and weight of the device have been increased.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and makes it possible to reduce the size and simplification of the overall structure of the absorption refrigeration cycle machine and to reduce the constituent materials and weight. It is an object of the present invention to provide a regenerator.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a regenerator for an absorption refrigeration cycle machine including a high-temperature regenerator and a low-temperature regenerator for regenerating an absorbing liquid absorbing refrigerant vapor. The high-temperature regenerator includes a gas-liquid separator at an upper position, and the low-temperature regenerator linearly extends from one side to the other side and includes a steam inlet header on one side, and the steam of the gas-liquid separator is provided. The outlet end is formed as a steam inlet header of the low-temperature regenerator.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a regenerator of an absorption refrigeration cycle machine to which the present invention is applied. The regenerator includes a high-temperature regenerator 1 and a low-temperature regenerator 3 for regenerating an absorbing liquid that has absorbed refrigerant vapor. The high-temperature regenerator 1 of the present embodiment includes an outer cylinder 11, an inner cylinder 12, a gas-liquid separator 13, a refractory insert 14 arranged at a position corresponding to the bellows tube portion 12a of the inner cylinder 12,
A burner unit 15, a blower 16, a fuel gas inlet 17, an eliminator 18, an absorbent inlet 19, an absorbent outlet 20, a combustion gas outlet 21, and the like are provided. The end 13a on the steam outlet side of the gas-liquid separator 13 of the high-temperature regenerator 1 is a header 31 on the steam inlet side of the low-temperature regenerator 3.

The low-temperature regenerator 3 comprises a header 31, a tube plate 32, 33 at both ends, a body 34, a heating tube 35, which is a straight tube fixed at both ends to the tube plates 32, 33 by expansion, etc., and a condensate outlet side. Header 36, absorption liquid inlet 37, inner pipe 3 for diffusion
8, an eliminator 39, a refrigerant vapor outlet 40, an absorbent outlet 41, a refrigerant condensate outlet 42, and the like.

FIG. 2 shows an example in which the regenerator of the present invention is applied to an absorption air conditioner as an absorption refrigeration cycle machine. The absorption air conditioner 50 of this example is an air-cooled type, and together with the regenerator including the high-temperature regenerator 1 and the low-temperature regenerator 3 shown in FIG. 1, an evaporator 51 for evaporating or condensing the refrigerant during cooling or heating.
A cool / hot air fan 52 for supplying cool or warm air for cooling / heating through this, an absorber 53 for absorbing the refrigerant evaporated or condensed in the evaporator with an absorbing liquid, and a condenser for condensing the refrigerant evaporated in the cooling operation. 54, the condenser 54
And a cooling air fan 55 for sending cooling air to cool the absorber 53, and a heat exchanger (not shown)
It is equipped with various commonly-equipped auxiliary equipment such as valves, instruments, sensors, and control panels.

In this apparatus, a regenerator including a high-temperature regenerator 1 and a low-temperature regenerator 3 is disposed at a corner portion of the cooling air fan 55 by utilizing a space around the fan 55. Therefore,
By using the regenerator of the present invention, the arrangement of this portion can be rationalized to the maximum. If the gas-liquid separator 13 of the high-temperature regenerator 1 and the low-temperature regenerator 3 are separately provided side by side as in a conventional apparatus, and they are connected by a steam pipe, the overall absorption cooler / heater can be obtained. The illustrated dimension D, which is the depth size, increases. Although the air-cooled absorption air conditioner is shown in this example, the regenerator of the present invention can be applied to a water-cooled air conditioner. In this case, a high temperature regenerator having a structure as shown in FIG. 3 may be used.

[0009] The regenerator of the present invention provided in such an absorption refrigeration cycle machine has the following operation. The absorbent having the low concentration absorbed by the refrigerant in the absorber 53 shown in FIG. 2 is introduced into the low-temperature regenerator 3 from the absorbent inlet 37 via a pump or a heat exchanger (not shown), And evaporates a part of the refrigerant that has been diffused into the vessel and heated and absorbed by the heating tube 35. The evaporated refrigerant vapor is introduced via the eliminator 39 into a condenser 54 arranged adjacent to the low-temperature regenerator 3. This steam pipe is extremely short. The absorption liquid having a medium concentration by evaporating a part of the refrigerant flows out from the absorption liquid outlet 41 and is sent to the high-temperature regenerator 1 via a pump, a heat exchanger or the like (not shown).

The intermediate-concentration absorbing liquid entering the high-temperature regenerator 1 from the absorbing liquid inlet 19 exchanges heat with the high-temperature gas burned in the combustion chamber 22, and ascends in the double pipe while evaporating the refrigerant to form gas-liquid. The liquid reaches the separation unit 13 and becomes a high-concentration liquid, and the absorbent outlet 2
Sent from 0. This absorbing liquid is sent to the absorber 53 via a heat exchanger or the like (not shown) and absorbs the refrigerant vapor evaporated by the evaporator 51.

The refrigerant vapor separated in the gas-liquid separator 13 via the eliminator 18 flows into the inlet header 31 of the low-temperature regenerator 3 and, as described above, passes through the heating pipe 35 while absorbing the absorbing liquid. The refrigerant is liquefied by applying heat thereto, flows out of the refrigerant condensed liquid outlet 42, and is introduced into the evaporator 51 via the condenser 54.

In the absorption air conditioner, a cool / hot air fan 52 sends air passing through the evaporator 51, and at the time of cooling, the air evaporates the refrigerant liquid condensed in the condenser 54, and is cooled by the latent heat to be cooled. It becomes cold wind. During heating, the refrigerant vapor generated by the high-temperature regenerator 1 flows into the evaporator 51 via the low-temperature regenerator 3 and a solenoid valve (not shown), and the air sent by the cool / hot air fan 52 condenses the refrigerant vapor, thereby producing a latent heat. Is heated to produce warm air for heating. The cooling and heating operation is performed in this manner.

According to the above-described regenerator, since the high-temperature regenerator 1 and the low-temperature regenerator 3 are integrated without being connected by a large-diameter steam pipe, the space occupied by the regenerator is minimized. As a result, the overall structure of the absorption refrigeration cycle machine equipped with the regenerator can be extremely small and simplified.
Further, since the steam piping is eliminated, the material of the apparatus is reduced accordingly, and the weight is reduced. Further, if the regenerator of this example is applied to an absorption air conditioner having a structure as shown in FIG. 2, the flow of fluid such as liquid or steam is shortened as a whole, and the material such as piping is reduced, and the fluid resistance is reduced. As a result, the performance of the device is improved.

FIG. 1 shows an example in which the high-temperature regenerator has an upright structure. However, in the present invention, the gas-liquid separator 13 of the high-temperature regenerator 1 and the low-temperature regenerator 3 are integrated. Therefore, the present invention can be applied to a high-temperature regenerator having a structure as shown in FIG.

[0015]

As described above, according to the present invention, the end on the steam outlet side of the gas-liquid separator of the high-temperature regenerator is used as the header on the steam inlet side of the low-temperature regenerator. And are directly connected without the large-diameter steam piping. As a result, the entire structure of the refrigerating cycle machine equipped with the regenerator can be reduced in size and simplified. In addition, since there is no steam pipe, the material of the apparatus is reduced correspondingly, so that the weight and the manufacturing cost can be reduced. Further, since the gas-liquid separator is located above the high-temperature regenerator and the low-temperature regenerator has a shape extending linearly from the steam inlet header side, the high-temperature regenerator and the low-temperature regenerator are connected to each other. The components of the absorption refrigeration cycle machine can be rationally arranged without wasting space, for example, the mold can be arranged so that the lower part of the low-temperature regenerator can be used as a fan space for air cooling.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structural example of a regenerator to which the present invention is applied.

FIG. 2 is a perspective view showing an example of a schematic structure of an absorption air conditioner equipped with the regenerator.

FIG. 3 is a sectional view showing another example of the structure of a regenerator to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High temperature regenerator 3 Low temperature regenerator 13 Gas-liquid separation part 13a End part 31 Header

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuyoshi Yamauchi 1000 Aochi-cho, Kusatsu-shi, Shiga Prefecture Kawasaki Cooling & Heating Co., Ltd. (72) Inventor Atsushi Sekikawa 1-5-20 Kaigan, Minato-ku, Tokyo Tokyo Gas (72) Inventor Ryuichiro Kawakami 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka Osaka Gas Co., Ltd. (72) Inventor Hideo Kawaguchi 507-2 Shinhocho, Tokai-shi, Aichi Prefecture Toho Gas Co., Ltd. (72) Inventor Kenji Ooka 2-4-1 Hamamatsucho, Minato-ku, Tokyo Kawasaki Heavy Industries, Ltd.

Claims (1)

[Claims] 1. A regenerator for an absorption refrigeration cycle machine comprising a high-temperature regenerator and a low-temperature regenerator for regenerating an absorbing liquid that has absorbed refrigerant vapor, wherein the high-temperature regenerator has a gas-liquid separation unit at an upper position, The low-temperature regenerator is linearly extended from one side to the other side and includes a steam inlet header on one side, and the end on the steam outlet side of the gas-liquid separation unit serves as a steam inlet header of the low-temperature regenerator. A regenerator for an absorption refrigeration cycle machine, wherein the regenerator is formed.