CN215412616U

CN215412616U - Sleeve type refrigerant absorber for chemical absorption cycle

Info

Publication number: CN215412616U
Application number: CN202120625544.2U
Authority: CN
Inventors: 李进龙; 胡祖军
Original assignee: Suzhou Jiayong New Energy Technology Co ltd
Current assignee: Suzhou Jiayong New Energy Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-01-04
Anticipated expiration: 2031-03-29

Abstract

The utility model relates to a sleeve type refrigerant absorber for chemical absorption cycle, which comprises an upper end enclosure, a lower end enclosure, a shell and an internal sleeve, wherein the shell is connected with a cooling water inlet, a cooling water outlet and a gas refrigerant inlet part; the upper and lower end enclosures are respectively connected with a working fluid concentrated solution inlet component and a dilute solution outlet component; the gas refrigerant inlet part is connected with the gas distributor; the inner sleeve comprises a concentrated solution ring pipe channel and an inner refrigerant gas channel, air outlets are uniformly distributed on the pipe wall of the refrigerant gas channel, the air outlets on the adjacent circumferential cross sections are in crisscross distribution, and fins with the direction consistent with the flowing direction of the concentrated solution in the ring pipe channel are welded on the outer wall of the inner pipe.

Description

Sleeve type refrigerant absorber for chemical absorption cycle

Technical Field

The utility model belongs to the technical field of chemical absorption cycle refrigeration or heat pumps, and particularly relates to a sleeve type refrigerant absorber for chemical absorption cycle.

Background

The chemical absorption type circulation technology is a technology for completing heat transfer and transmission by a working medium pair with special properties through the heat absorption (evaporation) and heat release (condensation) processes when the phase state of a refrigerant in the working medium pair is changed under the drive of a low-grade heat source, and has an irreplaceable effect on the recovery and utilization of low-grade heat energy. The chemical absorption cycle mainly comprises a generator, a condenser, an evaporator, an absorber and a solution heat exchanger. In the working process, the working fluid concentrated solution is cooled by the heat exchanger, enters the absorber after the temperature is reduced, is sprayed and absorbs the refrigerant steam from the evaporator, is mixed to form a new working fluid dilute solution, and then enters the generator after being sent to the heat exchanger, so that a circulation process is formed. Since the absorption process has a heat-releasing effect, in the absorber, a cooling water pipe is provided to remove heat. However, in the prior art, the spraying device in the absorber often adopts a spraying plate provided with simple spraying holes, and the uniformity of spraying the concentrated solution cannot be completely ensured. On the other hand, because the absorption is unfavorable at high temperature, extra heat generated by the system needs to be removed in time, and a relatively efficient heat exchange mode is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems and enhance the absorption and heat transfer processes, the utility model provides a sleeve type refrigerant absorber for a chemical absorption cycle.

The utility model adopts the following technical scheme:

a sleeve-type refrigerant absorber for chemical absorption cycle comprises an upper end enclosure, a lower end enclosure, a shell and an internal sleeve, wherein the end enclosure is connected with the shell through a flange. The upper end enclosure is positioned at the top of the absorber and is connected with an absorbent concentrated solution inlet pipe; the lower end enclosure is positioned at the bottom of the absorber and is connected with an absorbent dilute solution outlet pipe; the lower part of the shell of the absorber is connected with a cooling water inlet pipe and a refrigerant steam inlet pipe, and the upper part of the shell is connected with a cooling water outlet pipe; the inner sleeve is composed of an outer tube, an inner tube and fins, a gap between the outer tube and the inner tube is a liquid solution ring tube channel, and the inner tube is a refrigerant steam channel.

Further, a refrigerant vapor distributor is included, which is connected to the refrigerant inlet pipe and the inner pipe of the sleeve, respectively.

Furthermore, the pipe wall of the sleeve inner pipe is uniformly provided with gas pore canals of refrigerant steam from top to bottom, wherein 6-10 gas pore canals are uniformly and symmetrically distributed on the circumferential section of each inner pipe.

Furthermore, the gas pore canals are uniformly arranged on the wall of the inner pipe from top to bottom, and the gas pore canals with adjacent circumferential sections are crisscross arranged.

Furthermore, fins are uniformly arranged on the outer wall of the inner pipe of the sleeve from top to bottom, wherein the direction of the fins is consistent with the flowing direction of the absorbent concentrated solution.

Furthermore, the included angle between the fins on the outer wall of the sleeve and the outer wall of the inner tube in the same direction is 15-45 degrees.

Furthermore, the inner sleeves of the absorber are uniformly arranged in the absorber shell according to a congruent triangle.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the sleeve type refrigerant absorber for the chemical absorption cycle is provided, so that cooling water in the absorber flows away from a shell pass, the refrigerant vapor absorption process is performed in a tube pass, and the process heat exchange efficiency is effectively improved;

(2) provided is a sleeve type refrigerant absorber for a chemical absorption cycle, wherein the sleeve structure enables the refrigerant vapor to be fully contacted with a solution, and the absorption process of the refrigerant vapor is effectively promoted.

Drawings

Fig. 1 is a structural view of a double pipe type refrigerant absorber for a chemical absorption cycle according to the present invention;

fig. 2 is a schematic diagram of the distribution of the sleeve type refrigerant absorber sleeve for the chemical absorption cycle and the ventilation channels of the adjacent circumferential sections of the inner pipe wall thereof.

Detailed Description

The preferred embodiments of the utility model are detailed below:

as shown in fig. 1, the present invention provides a double pipe type refrigerant absorber for a chemical absorption cycle, which includes an upper head (7), a lower head (8), a shell (9), and an inner pipe (10). Wherein, the upper end enclosure (7) is positioned at the top of the absorber and is connected with an absorbent concentrated solution inlet pipe (1); the lower end enclosure (8) is positioned at the bottom of the absorber and is connected with an absorbent dilute solution outlet pipe (2); the lower part of the absorber shell (9) is connected with a cooling water inlet pipe (4) and a refrigerant steam inlet pipe (3), and the upper part of the shell (9) is connected with a cooling water outlet pipe (5); the inner sleeve (10) of the absorber is composed of an outer tube (11), an inner tube gas channel (13) and fins (14), a gap between the outer tube (11) and the inner tube gas channel (13) is a liquid solution channel, and the inner tube gas channel (13) is a refrigerant vapor channel.

Specifically, the inner lower part of the absorber shell (9) also comprises a refrigerant vapor distributor (6).

Specifically, the refrigerant vapor distributor (6) is directly connected to the refrigerant inlet pipe (3) and the tube-in-tube gas passage (13), respectively.

Specifically, the sleeve comprises a ring pipe channel (11) and an inner pipe gas channel (13), fins (14) are arranged on the outer wall of the gas channel, and gas circulation pore canals (15) are uniformly distributed on the pipe wall of the inner pipe.

Specifically, the inner pipe (13) and the pipe wall of the sleeve (10) are uniformly provided with gas pore channels (15) of refrigerant vapor from top to bottom.

Specifically, gas enters a gas distributor (6) in the absorber through a gas inlet pipeline (3), then flows into an inner pipe gas channel (13), and then enters a sleeve ring pipe channel (11) through a gas circulation duct (15) to be mixed with liquid in a ring pipe.

Specifically, 6-10 gas pore canals (15) are uniformly and symmetrically distributed on the circumferential section of the pipe wall of the inner pipe gas channel (13).

Specifically, the gas channels of the inner tube gas channel (13) are uniformly arranged from top to bottom, and the gas channels with adjacent circumferential sections are arranged in a crisscross manner (see fig. 2).

Specifically, fins with the direction consistent with the flowing direction of the concentrated solution in the circular pipe channel (11) are uniformly arranged on the outer wall of the inner pipe gas channel (13) of the sleeve (10) from top to bottom.

Specifically, the included angle between the fins (14) on the outer wall of the sleeve and the outer wall of the inner tube gas channel (13) in the same direction is 15-45 degrees.

Specifically, the inner sleeves (10) of the absorber are uniformly arranged in the absorber shell according to a congruent triangle.

While the embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and various changes and modifications can be made to the gas absorber according to the present invention, and all changes, modifications, substitutions, combinations and simplifications made according to the spirit and principles of the technical solution of the present invention should be replaced by equivalents, and all fall within the protection scope of the present invention as long as the objects of the present invention are met.

Claims

1. A sleeve type refrigerant absorber for chemical absorption cycle comprises an upper end enclosure (7), a lower end enclosure (8) and a shell (9), wherein the end enclosure is connected with the shell through a flange; the upper end enclosure (7) is connected with a concentrated solution inlet pipe (1), the lower end enclosure is connected with a dilute solution outlet pipe (2), and the shell (9) is connected with a cooling water inlet pipe (4) and a cooling water outlet pipe (5); the casing (12) is internally provided with the sleeves (10), and the sleeves (10) are arranged in the casing according to an equilateral triangle; the sleeve comprises a ring pipe channel (11) and an inner pipe gas channel (13), fins (14) are arranged on the outer wall of the gas channel, and gas circulation pore canals (15) are uniformly distributed on the pipe wall of the inner pipe; gas enters a gas distributor (6) in the absorber through a gas inlet pipeline (3), then flows into an inner pipe gas channel (13), and then enters a sleeve pipe loop channel (11) through a gas circulation pore channel (15) to be mixed with liquid in a loop.

2. The telescopic refrigerant absorber for a chemical absorption cycle as set forth in claim 1, wherein said sleeves (10) are uniformly arranged in a circular housing in an equilateral triangle.

3. The telescopic refrigerant absorber for chemical absorption cycle as recited in claim 1, wherein said gas distributor (6) is directly connected to the refrigerant inlet pipe (3) and the inner pipe gas passage (13), respectively.

4. The telescopic refrigerant absorber for a chemical absorption cycle as recited in claim 1, wherein the outer wall of the inner tube gas passage (13) of the sleeve (10) is uniformly provided with fins from top to bottom in the direction corresponding to the flow direction of the concentrated solution in the loop pipe passage (11).

5. The telescopic refrigerant absorber for a chemical absorption cycle as recited in claim 1, wherein the gas ports (15) are uniformly formed around the wall of the inner tube gas passage (13) of the sleeve (10) from top to bottom.

6. The telescopic refrigerant absorber as claimed in claim 1, wherein the fin forms an angle of 15 to 45 degrees with the outer wall of the inner tube in the same direction.

7. The telescopic refrigerant absorber for a chemical absorption cycle as claimed in claim 1, wherein 6 to 10 gas ports (15) are symmetrically formed on the circumference of the cross section of each inner tube.

8. The telescopic refrigerant absorber for a chemical absorption cycle as recited in claim 1, wherein the inner tubes of the gas ports (15) are arranged in a crisscross pattern in the gas ports on the circumference of the adjacent sections from top to bottom.