JPH0634238A - Absorption type refrigerator - Google Patents

Abstract

PURPOSE:To obtain an absorption type refrigerator having a compact thermal substance moving unit in which splash of liquid is reduced. CONSTITUTION:The absorption type refrigerator comprises, for example, a thermal substance exchanging unit having an absorption chamber 16 and a regenerating chamber 15 are provided between a high temperature regenerator or a low temperature regenerator and an air-cooled absorber in an air-cooled room cooler/heater, wherein both the chambers 16 and 15 each has a scattering duct 21 having a plurality of liquid distributing orifices 22, and a plurality of net members 23A perpendicular to the duct 21. An outside of the duct 21 is surrounded by an enlarged surfaces of the plurality of the members 23A, the end of the member 23A is suspended down to form a fin part 25A, the end of the part 25A is suspended in a trough 27 for receiving solution to constitute a thermal substance exchanging unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorption refrigerating machine using water as a refrigerant and a salt solution such as lithium bromide as an absorbent, and more particularly to an evaporator, a cooling separation type absorber and a self-evaporative absorption type. The present invention relates to an absorption refrigerating machine suitable for an absorption cooling / heating machine provided with an evaporation type heat exchanger by self-sensible heat or an absorption type heat exchanger by self-sensible heat, such as a solution heat substance exchanger.

[0002]

2. Description of the Related Art For example, a heat-mass exchanger of an evaporation type by self-sensible heat or an absorption type by self-sensible heat such as an evaporator, an absorber and a self-evaporative absorption heat exchanger of an absorption cooling and heating machine is a spray for making a liquid fine. It is generally divided into a part and a packing part that widens the area where the liquid comes into contact with steam, and a plate type such as an absorption tower or an evaporation tower. For example, Japanese Laid-Open Patent Publication No. 54-124359 discloses a cooling separation type absorber in which an air-cooled heat exchanger and an absorption part are separated. The cooling separation type absorber has a spray part and a tray part. It consists of and.

Further, Japanese Patent Application Laid-Open No. 63-176962 discloses a refrigerant direct circulation type absorption cooling / heating machine in which a liquid refrigerant is directly sent to a room for heat exchange and then returned to an evaporator and self-evaporated. Has been done. In this case, the structure of the self-evaporating evaporator is disclosed as a tray plate type or a spray type in the collection of papers p121 to 124 of the Academic Lecture Meeting of the Japan Refrigeration Society (held on November 24 and 25, 1991) in 1989. The spray type is reported to be good.

Further, Japanese Patent Laid-Open No. 4-116353 discloses a heat exchanger in which a self-evaporation type heat exchanger and a sensible heat absorption type heat exchanger are combined as a heat substance exchanger for a dilute solution and a concentrated solution. As such structures, there are disclosed an air-cooled absorption cooling / heating machine of a punching plate system or a system in which a filler is arranged under a spray.

[0005]

SUMMARY OF THE INVENTION The above-described conventional heat and mass transfer device for absorption chiller-heater and absorption chiller-heater is separately provided in order to prevent splashes of liquid droplets during spraying and splashes of liquid droplets during flashing. I needed an eliminator. Therefore, there is a problem that the pressure loss during mass transfer is large and the heat mass transfer performance is low. There is also a problem that the device becomes large and requires a large occupied space.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an absorption refrigerator having a compact heat-mass transfer device which produces less liquid droplets. It is intended.

[0007]

In order to achieve the above object, the constitution of the first invention relating to the absorption refrigerator according to the present invention is as follows:
At least in an absorption refrigerator comprising a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger, a refrigerant pump, a solution pump, and a piping system operatively connecting these devices, a high-temperature liquid refrigerant is vapor-liquid. The evaporator, which uses the low-temperature liquid refrigerant by contact, has a spray duct having a plurality of liquid distribution orifices,
A plurality of mesh members fixed so as to wrap around the outside of the spray duct are provided, and an end portion of the mesh member is hung downward to form a fin portion, and the tip of the fin portion receives a low temperature liquid refrigerant gutter member. The heat and mass transfer means is configured by being hung inside.

In order to achieve the above object, the structure of the second invention relating to the absorption refrigerator is at least a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger,
In an absorption refrigerator comprising a refrigerant pump, a solution pump, and a piping system that operatively connects these devices, an evaporator that converts a high-temperature liquid refrigerant into a low-temperature liquid refrigerant by gas-liquid contact is a sprayer having a plurality of liquid distribution orifices. A duct and a plurality of mesh members orthogonal to the distribution duct are provided, the outside of the distribution duct is wrapped with an enlarged surface of the plurality of mesh members, and the end of the mesh member hangs downward to form a fin portion. Is formed, and the tip of the fin portion is hung down into the gutter member that receives the low-temperature liquid refrigerant to form the heat and mass transfer means.

Further, in order to achieve the above object, the structure of the third invention relating to the absorption refrigerator is at least a regenerator, a condenser, an evaporator, an absorber, a solution heat exchanger,
In an absorption refrigerator comprising a refrigerant pump, a solution pump, and a piping system for operatively connecting these devices, an absorber that absorbs refrigerant vapor into a concentrated solution to form a dilute solution has a plurality of liquid distribution orifices. A duct and a plurality of mesh members orthogonal to the distribution duct are provided, the outside of the distribution duct is wrapped with an enlarged surface of the plurality of mesh members, and the end of the mesh member hangs downward to form a fin portion. Is formed, and the tip of the fin portion is hung down in the gutter member for receiving the dilute solution to form the heat and mass transfer means.

Further, in order to achieve the above object, the structure of the fourth invention relating to the absorption refrigerator is the high temperature regenerator, the low temperature regenerator, the condenser, the evaporator, the absorber, the high temperature solution heat. Exchanger, low temperature solution heat exchanger, refrigerant pump, solution pump,
And in an absorption refrigerator comprising a piping system for operatively connecting these devices, a heat-mass exchange device having an absorption chamber and a regeneration chamber is provided between the high temperature regenerator or the low temperature regenerator and the absorber. Both the absorption chamber and the regeneration chamber are provided with a distribution duct having a plurality of liquid distribution orifices and a plurality of mesh members orthogonal to the distribution duct, and the outside of the distribution duct is provided with the plurality of meshes. Wrapped with an enlarged surface of the member, the end of this net member is hung downward to form a fin portion, and the tip of the fin portion is hung in the gutter member for receiving the solution to form a heat-mass exchange device. is there.

[0011]

The above-mentioned structure of the evaporator, the absorber, the heat-mass transfer means in the absorption chamber and the regeneration chamber of the heat-mass exchange device has the following functions. The liquid refrigerant or solution whose pressure is increased by the refrigerant pump or the solution pump is introduced from the liquid introduction pipe through the spray header into the spray duct, and is jetted from the plurality of liquid distribution orifices provided in the spray duct. Due to the pressure loss of the liquid distribution orifice, the uniformity of the liquid distribution in the axial direction of the spray duct can be maintained high, and the liquid can be sent under pressure to make the liquid distribution compact.

The liquid ejected from the liquid distribution orifice is
While colliding with a mesh member (wire mesh), it is expanded in the tube axial direction by the capillary action of the mesh member and flows through the fin portion formed by the wire under the mesh member to flow down the gas and liquid to carry out substance exchange. . Since there is no place where the droplets fall freely, droplets do not form.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment of the present invention will be described below with reference to FIGS. [Embodiment 1] First, an embodiment of the first invention will be described with reference to FIGS. 1 is a cross-sectional view of an evaporator of an absorption chiller according to an embodiment of the present invention, and FIG.
It is a longitudinal cross-sectional view of the evaporator. The evaporator shown in FIGS.
It is a flash evaporator (hereinafter simply referred to as an evaporator) related to the heat and mass transfer device.

In FIGS. 1 and 2, 21 is a distribution duct through which a high-temperature liquid refrigerant flows, 22 is a liquid distribution orifice formed in plural numbers in the distribution duct 21, and 23 is so arranged as to cover the outside of the distribution duct 21. Wire meshes relating to a plurality of mesh members, 24 is a wire which is a stapler for fixing the wire mesh 23, 25 is a fin portion that hangs below the wire mesh 23,
6 is a recessed part that is recessed around the liquid distribution orifice 22,
A gutter 27 receives the low temperature liquid refrigerant.

That is, the distribution duct 21 has a plurality of distribution orifices 22 having a recess 26 in the upper portion thereof, and a wire mesh 23 is wound around the distribution duct 21. The ends 23a and 23b of the wire net 23 are inside the winding so that the wire net 23 cannot be unwound. A fin portion 25 is formed at a lower portion of the wire net 23 and is fixed by a wire 24. Then, the lower end of the fin 25 is drooped and inserted into the gutter 27.

Next, the operation will be described. The high-temperature liquid refrigerant flowing in the spray duct 21 is ejected from the distribution orifice 22, collides with the wire net 23, and flows down along the fin portion 25 of the wire net 23. Meanwhile, self-evaporation, that is, a part of the refrigerant takes sensible heat to evaporate and vaporize, and the liquid refrigerant is cooled to a low temperature. This low-temperature liquid refrigerant is collected in the gutter 27 and flows out. In this way, the coolant liquid flows down while adhering to the surface of the wire net 23, so that no droplet is generated. In addition, self-evaporation and fine droplets generated inside the wire netting 23 are also captured by the wire netting 23 itself, so that they do not spout to the outside. Therefore, since there are no free-falling droplets, even if the vapor flow velocity on the surface of the wire net 23 is high, the number of droplets that can be entrained is extremely small, and therefore there is an advantage that an eliminator for trapping droplets is not required.

According to the evaporator of this embodiment, a plurality of wire nets 23 are wound around the outer side of the distribution duct 21 in which a plurality of liquid distribution orifices 22 are arranged, and the end portions of the wire nets 23 are hung downward to form fins. 25 is formed, and this fin 25 is gutter 27
Since the wire mesh 23 is inserted into the wire mesh 23, the capillary action of the wire netting 23 does not generate droplets of the sprayed liquid of the high-temperature liquid refrigerant, and a liquid film can be uniformly formed on the wire netting 23, which has the effect of achieving high heat and mass transfer. can get. Further, since the concave portion 26 is provided around the liquid distribution orifice 22, the distance between the wire net 23 and the liquid distribution orifice 22 is increased to improve the accuracy of the liquid distribution and to spread the spray liquid in the pipe axis direction. Make it bigger,
There is an effect that a more uniform liquid film can be formed on the metal net 23.

[Embodiment 2] Next, an embodiment of the third invention will be described with reference to FIGS. FIG. 3 is a horizontal sectional view of an absorber of an absorption refrigerator according to another embodiment of the present invention, and FIG. 4 is a vertical sectional view of the absorber of FIG. In the figure, those having the same reference numerals as those in FIGS. In the embodiment shown in FIGS. 3 and 4, a plurality of wire nets 23A are arranged orthogonally to the spray duct 21, and the outer side of the spray duct 21 is wrapped by accumulating the enlarged surfaces of the plurality of wire nets 23A. It was done. In addition, an uneven pattern is embossed on the fin 25A of the wire net 23A. Further, the upper end of the wire net 23A is bent and doubled and tripled so as to properly eject the liquid from the distribution orifice 22.

From the concentrated solution introducing pipe on the regenerator side to the spray duct 2
The concentrated solution introduced into the nozzle 1 is ejected from the distribution orifice 22 and collides with the wire net 23A, and the fin portion 25A of the wire net 23A.
Run down along. In the meantime, the refrigerant vapor supplied from the evaporator is absorbed to form a dilute solution, which is collected in the gutter 27 and flows out. In this way, since the solution flows down while adhering to the surface of the wire netting 23A, droplets are not generated. Also,
Fine splashes generated inside the wire net 23A
Since it catches itself, it does not squirt outside. Therefore,
Since there are no free-falling droplets, there is the advantage that an eliminator for capturing the droplets is not required.

According to the embodiments shown in FIGS. 3 and 4, the capillary action of the wire netting 23A does not generate droplets of the concentrated solution spraying liquid, a uniform liquid film can be formed on the wire netting 23A, and high heat mass transfer is achieved. The effect of achieving is obtained. Further, since the concave portion 26 is provided around the liquid distribution orifice 22, the wire mesh 23A
The liquid distribution orifice 22 and the liquid distribution orifice 22 are increased in distance to enhance the accuracy of the liquid distribution, and the spread of the sprayed liquid in the pipe axis direction can be increased, so that a more uniform liquid film can be formed on the wire net 23A.

In the embodiment of FIGS. 3 and 4, more wire nets 2 per unit length of the distribution duct 21 than in the embodiment of FIGS.
The area of 3 A can be packed, and there is an advantage that absorption with low mass transfer performance can be covered by increasing the surface area. In addition, the refrigerant vapor flows in from a gap between the wire nets 23A stacked on each other. In this embodiment, an example in which the fin 25A is formed by stamping the wire net 23A is shown. However, when the stamp is not stamped, there is an advantage that the flow of the refrigerant vapor can be made smoother.

[Embodiment 3] Next, an embodiment of the second invention will be described with reference to FIG. FIG. 5 is a perspective view showing a combined portion of an evaporator and an air-cooled absorber of an air-cooled absorption refrigerator according to still another embodiment of the present invention. In the figure, those having the same reference numerals as those in FIG. 3 are the same parts as those in the previous embodiment, and therefore their explanations are omitted. Multi-pass orthogonal air-cooled absorber 5 shown in FIG.
(Hereinafter referred to simply as "absorber") causes the concentrated solution to flow down countercurrently to the flow of cooling air by means of the solution pump 9 into the vertical absorption pipe 31, and the flash evaporator (simply referred to as "evaporator") 4 inside the pipe. It is for guiding the generated refrigerant vapor. 32
Is an air cooling fin provided in the vertical absorption tube 31. The structure of the evaporator 4 is the same as that of the example of the absorber shown in FIGS.

In this embodiment, the same effects as those of the previous embodiments can be obtained, and in addition to the advantage that the evaporator 4 can be compactly arranged above the vertical absorption pipe 31, the eliminator is not necessary, so that the gutter is not required. Below 27, a vertical absorption tube 31
There is an advantage that a solution spraying device can be arranged.

[Embodiment 4] Next, as an embodiment of the fourth invention, an example of an air-cooled absorption air conditioner having a heat and mass transfer heat exchanger will be described with reference to FIGS. 6 and 7. Figure 6
[Fig. 7] is a cycle system diagram of an air-cooled absorption cooling / heating machine having a heat-mass exchange device according to still another embodiment of the present invention, and Fig. 7 is a transverse cross-sectional view showing the heat-mass exchanger unit of Fig. 6. In the figure, the same reference numerals as those in FIGS. 1 and 3 indicate the same parts as those in the previous embodiment.

In FIG. 6, 1 is a high temperature regenerator, 2 is a low temperature regenerator, 3 is an air cooled condenser, 4 is an evaporator (flash evaporator), 5 is an air cooled absorber, 6 is a low temperature heat exchanger, and 7 is High temperature heat exchanger, 8 (collective name of 8a, 8b) is a blower, 9 (9a,
9b is a generic name) is a solution pump, 10 is a refrigerant pump, 11
Is an external heat source of the high temperature regenerator 1, and 12 is a hot water heat exchanger.

Reference numeral 14 is a plurality (three sets in FIG. 6) of the heat and mass exchanger units which constitute the heat and mass exchange apparatus. The heat and mass exchanger units 14 are the regeneration chambers 15 (15a, 15b,
15c) and absorption chamber 16 (16a, 16b, 1)
6c (generic name) is attached. Heat and mass exchanger unit 1
As shown in FIG. 7, 4 is similar to the regeneration chamber 15 and the absorption chamber 16 housed in the vacuum container 29. That is, it is composed of a spray duct 21, a plurality of liquid distribution orifices 22, a wire mesh 23A orthogonal to the liquid distribution orifices 22 and a gutter 27. 28 shows the existence of the extraction pipe for extracting the non-condensable gas.

The operation of the air-cooled absorption air conditioner thus constructed will be described. The high temperature regenerator 1 heats the absorbing solution in the container by the external heat source 11 to generate the refrigerant vapor 51 and concentrate it. The generated refrigerant vapor 51 is transferred to the vapor duct 41.
Is introduced into the heat exchanger 42 in the low temperature regenerator 2 via
The refrigerant itself is condensed and liquefied by heating the solution in the low temperature regenerator 2, and is introduced into the air-cooled condenser 3 via the conduit 43 and the pressure reducing means 44.

The high temperature heat exchanger 7 exchanges heat between the concentrated solution 61 produced in the high temperature regenerator 1 and the dilute solution 67 flowing into the high temperature regenerator 1. The low temperature heat exchanger 6 includes a concentrated solution 62 produced by the low temperature regenerator 2 and a dilute solution 6 flowing into the low temperature regenerator 2.
Heat exchange with 7. The low temperature regenerator 2 uses the latent heat of condensation of the refrigerant vapor 51 generated in the high temperature regenerator 1 as a heating source to heat the absorbing solution in the vessel to generate the refrigerant vapor 52 and generate the concentrated solution 6
Generates 2. The air-cooled condenser 3 guides the refrigerant vapor 52 generated in the low temperature regenerator 2 into the chamber and cools it with the cooling air 33 passing through the heat transfer tube to condense and liquefy the refrigerant vapor 52. Heat exchanger 4 of low temperature regenerator 2
Refrigerant 55 condensed and liquefied in 2 is introduced into the air-cooled condenser 3 via the pressure reducing means 44, and the cooling air 33 passing through the heat transfer tube
Cool further with.

The liquid refrigerant 53 produced in the air-cooled condenser 3 is located at the head position or the liquid transport means 45 (refrigerant pump 10).
Via the conduit 46 and the pressure reducing means 47 by means of the evaporator 4
Will be introduced to. In the evaporator 4, the high-temperature liquid refrigerant that has undergone heat exchange in the room is introduced and self-evaporates to generate a refrigerant vapor to generate a low-temperature liquid refrigerant, which is again pumped into the room. The refrigerant vapor 54 evaporated and vaporized by the evaporator 4 is guided to the air-cooled absorber 5.

In the air-cooled absorber 5, the concentrated solution 65 is supplied to the vertical absorption pipes 31a, 31a of the air-cooled absorber 5 by the solution pumps 18, 9.
31b, the concentrated solution 65 is cooled by the cooling air 34, absorbs the refrigerant vapor 54 from the evaporator 4, and is diluted to produce a diluted solution 66. The dilute solution 66 generated in the air-cooled absorber 5 is sent to the absorption chamber 16 of the heat and mass exchanger unit 14 by the solution pumps 9a and 9b.

The dilute solution 66 sent into the absorption chamber 16 absorbs the refrigerant vapor 56 generated in the regeneration chamber 15 of the heat and mass exchanger unit 14, raises the temperature, and dilutes the dilute solution 67 with a lower concentration of the absorbent. Becomes On the other hand, in the reproduction room 15,
The high-temperature concentrated solution 64 flows down from the sprinkling duct 21 through the liquid distribution orifice 22 and down the wire net 23A to generate a refrigerant vapor to generate a low-temperature high-concentration solution 65.

The hot dilute solution 67 produced in the absorption chamber 16 is partially transferred to the low temperature regenerator 2 via the low temperature heat exchanger 6 by the solution pump 19 (general term for 19a, 19b, 19c), and The rest is sent to the high temperature regenerator 1 via the high temperature heat exchanger 7. The concentrated solution 61 generated in the high temperature regenerator 1 is mixed with the concentrated solution 62 generated in the low temperature regenerator 2 via the high temperature heat exchanger 7, and becomes a concentrated solution 64 via the low temperature heat exchanger 6. And is guided to the regeneration chamber 15 to generate a refrigerant vapor 56 and concentrate it to form a concentrated solution 65. The concentrated solution 65 generated in the regeneration chamber 15 is supplied to the solution pump 18 (18a, 18b,
18c) (generic name of 18c). The cooling cycle is configured and operates as described above.

Next, the heating cycle will be described. During heating, the high-temperature refrigerant vapor 51 generated in the high-temperature regenerator 1 is guided to the hot-water heat exchanger 12 to be condensed, and the hot water 13 flowing in the heat transfer tube group is heated, thereby obtaining the heating capacity. The liquid refrigerant 57 condensed and liquefied in the hot water heat exchanger 12 returns to the inside of the high temperature regenerator 1 by the action of gravity. The heating cycle is configured and operating as described above.

In this embodiment, the dilute solution 67 produced in the absorption chamber 16 is supplied to the high temperature regenerator 1 and the low temperature regenerator 2 in parallel and returned to the air-cooled absorber 5 in parallel, that is, so-called parallel. Since the cooling cycle was configured with the flow,
The amount of solution circulation in each of the high temperature heat exchanger 7, the low temperature heat exchanger 6, the low temperature regenerator 2, and the high temperature regenerator 1 is small, and there is an advantage that the piping and the like can be downsized and the operating pressure of the cycle can be lowered.

According to this embodiment, the solution sent to the high temperature regenerator 1 and the low temperature regenerator 2 is the dilute dilute solution 67 produced in the absorption chamber 16 and the dilute solution 66 produced in the air-cooled absorber 5. It is a thinner concentration. Therefore, the cycle can be shifted to the low concentration side, and the concentration width in the high temperature regenerator 1 and the low temperature regenerator 2 can be made larger than before, that is, the concentration difference between the concentrated solution and the dilute solution can be made larger, and the solution circulation amount can be reduced. Since the required refrigerant can be generated, the cooling cycle efficiency can be increased and energy saving can be realized.

When the high temperature regenerator 1 and the low temperature regenerator 2 are operated with the same temperature difference between the concentrated solution and the dilute solution as in the conventional case, the concentration of the dilute solution 66 to be produced in the air-cooled absorber 5 is reduced. A deep cycle can be realized. That is, since the solution concentration at the outlets of the vertical absorption tubes 31a and 31b of the air-cooled absorber 5 can be increased and the pressure equilibrium temperature of the absorption solution can be increased, the difference in heat exchange temperature with the cooling air 34 as a cooling medium can be increased. Therefore, the effect of reducing the heat transfer area of the air-cooling absorber 5 is obtained, and a compact air-cooling absorption cooling / heating machine can be provided.

In each of the above embodiments, although not shown here, it goes without saying that a liquid dispersion plate may be provided inside the wire mesh above the distribution orifice, that is, in the liquid ejection portion. The addition of the liquid dispersion plate has the effect of preventing the liquid from jumping out of the wire net even when the amount of liquid is large, and forming a more uniform liquid film on the wire net. Therefore, it is possible to provide a highly efficient and compact evaporator, absorber, and heat-mass exchanger unit. In addition, although the wire mesh is used in each of the above-mentioned embodiments, it goes without saying that another mesh member such as a durable plastic material can be used instead.

In each of the above embodiments, an example of the air-cooled absorption cooling / heating machine has been described, but the present invention is not limited to the air-cooling type.
It can also be applied to other absorption refrigerators.

[0039]

As described in detail above, according to the present invention, it is possible to provide an absorption refrigerator having a compact heat and mass transfer device in which liquid droplets are less likely to be generated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an evaporator of an absorption refrigerator according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the evaporator of FIG.

FIG. 3 is a cross-sectional view of an absorber of an absorption refrigerator according to another embodiment of the present invention.

4 is a vertical cross-sectional view of the absorber of FIG.

FIG. 5 is a perspective view showing a combined portion of an evaporator and an air-cooled absorber of an air-cooled absorption refrigerator according to still another embodiment of the present invention.

FIG. 6 is a cycle system diagram of an air-cooled absorption cooling / heating machine having a heat-mass exchange device according to still another embodiment of the present invention.

7 is a cross-sectional view showing the heat and mass exchanger unit of FIG.

[Explanation of symbols]

1 High Temperature Regenerator 2 Low Temperature Regenerator 3 Air Cooling Condenser 4 Evaporator 5 Air Cooling Absorber 6 Low Temperature Heat Exchanger 7 High Temperature Heat Exchanger 9, 9a, 9b, 18, 18a, 18b, 18c, 1
9, 19a, 19b, 19c Solution pump 10 Refrigerant pump 14 Heat and mass exchanger unit 15, 15a, 15b, 15c Regeneration chamber 16, 16a, 16b, 16c Absorption chamber 21 Spreading duct 22 Liquid distribution orifice 23, 23A Wire mesh 25 Fins 26 recessed part 27 gutter

Claims (6)

[Claims] 1. At least a regenerator, a condenser, an evaporator,
In an absorption refrigerator comprising an absorber, a solution heat exchanger, a refrigerant pump, a solution pump, and a piping system that operatively connects these devices, an evaporator that converts a high-temperature liquid refrigerant into a low-temperature liquid refrigerant by gas-liquid contact is A distribution duct having a plurality of liquid distribution orifices and a plurality of mesh members fixed so as to wrap the outside of the distribution duct are provided, and the end of the mesh member is hung downward to form a fin portion. An absorption chiller, characterized in that the mass mass transfer means is configured by suspending the tip of the part into a gutter member for receiving a low temperature liquid refrigerant. 2. At least a regenerator, a condenser, an evaporator,
In an absorption refrigerator comprising an absorber, a solution heat exchanger, a refrigerant pump, a solution pump, and a piping system that operatively connects these devices, an evaporator that converts a high-temperature liquid refrigerant into a low-temperature liquid refrigerant by gas-liquid contact is A distribution duct having a plurality of liquid distribution orifices and a plurality of mesh members orthogonal to the distribution duct are provided, and the outside of the distribution duct is wrapped with an enlarged surface of the plurality of mesh members, and the end of the mesh member is provided. To form a fin portion, and the tip of the fin portion is hung into a trough member for receiving a low temperature liquid refrigerant to constitute a heat / mass transfer means. 3. At least a regenerator, a condenser, an evaporator,
In an absorption refrigerator comprising an absorber, a solution heat exchanger, a refrigerant pump, a solution pump, and a piping system operatively connecting these devices, an absorber that absorbs refrigerant vapor in a concentrated solution to form a dilute solution is A distribution duct having a plurality of liquid distribution orifices and a plurality of mesh members orthogonal to the distribution duct are provided, and the outside of the distribution duct is wrapped with an enlarged surface of the plurality of mesh members, and the end of the mesh member is provided. To form a fin portion, and the tip of the fin portion is hung down into a trough member for receiving a dilute solution to constitute a heat mass transfer means. 4. A high temperature regenerator, a low temperature regenerator, a condenser, an evaporator, an absorber, a high temperature solution heat exchanger, a low temperature solution heat exchanger, a refrigerant pump, a solution pump, and piping for operatively connecting these devices. An absorption refrigerating machine comprising a system is provided with a heat-mass exchange device in which an absorption chamber and a regeneration chamber are provided between the high-temperature regenerator or the low-temperature regenerator and the absorber. Momo is provided with a distribution duct having a plurality of liquid distribution orifices and a plurality of mesh members orthogonal to the distribution duct, and the outside of the distribution duct is wrapped with an enlarged surface of the plurality of mesh members. The absorption type refrigerator is characterized in that the end portion of the fin is drooped downward to form a fin portion, and the tip of the fin portion is drooped into a trough member for receiving a solution to constitute a heat-mass exchange device. . 5. The absorption refrigerator according to claim 1, wherein a periphery of the liquid distribution orifice is recessed. 6. The absorption refrigerator according to claim 1, wherein a liquid dispersion plate is provided above the liquid distribution orifice.