CN220213927U

CN220213927U - Lithium bromide solution recovery system

Info

Publication number: CN220213927U
Application number: CN202321905042.0U
Authority: CN
Inventors: 彭海涛; 李玉成; 娄明琛
Original assignee: Xinjiang Daqo New Energy Co Ltd
Current assignee: Xinjiang Daqo New Energy Co Ltd
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2023-12-22
Anticipated expiration: 2033-07-19

Abstract

The utility model relates to the technical field of lithium bromide solution recovery, and discloses a lithium bromide solution recovery system, which comprises a filter component; the filter assembly includes: the absorber is characterized in that a discharge port of the absorber is connected with a solution pump through a pipeline, and a cartridge filter I, an activated carbon filter and a cartridge filter II are sequentially arranged on the solution pump; the lithium bromide solution is pumped into an absorber, a solution pump is started, the lithium bromide solution sequentially passes through a first security filter, an active carbon filter, a second security filter, a heat exchanger, a generator, a condenser and an evaporator, then enters the absorber again to form circulation, the lithium bromide solution is recycled, and the lithium bromide solution is filtered and evaporated to be matched with the lithium bromide solution to respectively realize the filtration of rust, mechanical impurities and the like in the lithium bromide solution and the evaporation of water in the lithium bromide solution through the evaporation of the water, so that the impurities are carried out, and the lithium bromide solution is recycled.

Description

Lithium bromide solution recovery system

Technical Field

The utility model relates to the technical field of lithium bromide solution recovery, in particular to a lithium bromide solution recovery system.

Background

The lithium bromide solution is a high-efficiency water vapor absorbent and an air humidity regulator, is mainly used as a working medium of a lithium bromide refrigerator, can cause lithium bromide solvent pollution due to leakage of a condenser tube array, has the water content exceeding the standard and the concentration lower than a normal use value, is higher in cost because the solvent needs to be replaced integrally for ensuring the normal operation of a unit, and causes serious environmental pollution and resource waste phenomenon if the waste lithium bromide solution is directly discharged into a water body, so that the lithium bromide solution needs to be recycled by a lithium bromide solution recycling system.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a lithium bromide solution recovery system which has the advantages of small volume, simple, convenient and flexible operation, high efficiency and energy conservation, and solves the problems of serious environmental pollution and resource waste caused by waste lithium bromide solution.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a lithium bromide solution recovery system comprising a filtration assembly; the filter assembly includes: the absorber is characterized in that a discharge port of the absorber is connected with a solution pump through a pipeline, and a cartridge filter I, an activated carbon filter and a cartridge filter II are sequentially arranged on the solution pump; the heat exchanger is connected with the two discharge holes of the cartridge filter; the generator is connected with the discharge port of the heat exchanger through a pipeline; the first condenser is arranged at the discharge port of the generator; and the evaporator is connected with the first condenser and the absorber through the evaporator.

Preferably: the first cartridge filter is a 20-mu m filter, the activated carbon filter is an activated carbon filter, and the second cartridge filter is a 5-mu m filter.

Preferably: the filter assembly is a circulating unit.

Preferably: the absorber feed inlet is provided with a concentration component; the concentrating assembly includes: the circulating pump is arranged at the feed inlet of the absorber; the concentrating kettle is arranged at the discharge port of the circulating pump; the second condenser is fixedly connected with the top of the concentration kettle through a pipeline; and the cooler is communicated with the condenser through a pipeline.

Preferably: an inner coil is arranged inside the concentrating kettle.

Preferably: the cartridge filter I, the activated carbon filter and the cartridge filter II are arranged at the outlet of the solution pump.

(III) beneficial effects

Compared with the prior art, the utility model provides a lithium bromide solution recovery system, which comprises the following components

The beneficial effects are that:

the utility model has the advantages of small volume, simple, convenient and flexible operation, high efficiency and energy saving, the lithium bromide solution is pumped into the absorber, the solution pump is started, the lithium bromide solution sequentially passes through the first security filter, the second security filter, the heat exchanger, the generator, the condenser and the evaporator, then enters the absorber again to form circulation, the lithium bromide solution is recovered, the filtration and the evaporation treatment are matched with the lithium bromide solution, the filtration of rust, mechanical impurities and the like in the lithium bromide solution and the evaporation of water in the lithium bromide solution through the evaporation of the water are respectively realized, the impurity is carried out, and the recovery treatment is carried out on the lithium bromide solution, so that the problems of serious environmental pollution and resource waste caused by the waste lithium bromide solution are solved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a concentrating assembly according to the present utility model;

FIG. 3 is a schematic diagram of the workflow structure of the filter assembly of the present utility model;

FIG. 4 is a schematic diagram of the workflow of the concentrating assembly according to the present utility model.

In the figure:

1. a filter assembly; 11. an absorber; 12. a solution pump; 13. a cartridge filter I; 14. an activated carbon filter; 15. a second security filter; 16. a heat exchanger; 17. a generator; 18. a first condenser; 19. an evaporator;

2. a concentrating assembly; 21. a circulation pump; 22. concentrating the kettle; 23. a second condenser; 24. a cooler.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, a lithium bromide solution recovery system includes a filter assembly 1; the filter assembly 1 comprises: the absorber 11 is characterized in that a discharge port of the absorber is connected with a solution pump 12 through a pipeline, and a first security filter 13, an activated carbon filter 14 and a second security filter 15 are sequentially arranged at a discharge port of the solution pump 12; the heat exchanger 16 is connected with the discharge port of the second cartridge filter 15; the generator 17 is connected with a discharge port of the heat exchanger 16 through a pipeline; the first condenser 18 is arranged at the discharge port of the generator 17; an evaporator 19, wherein the first condenser 18 and the absorber 11 are connected through the evaporator 19; the first cartridge filter 13 is a 20-mu m filter, the active carbon filter 14 is an active carbon filter, and the second cartridge filter 15 is a 5-mu m filter; the filtering component 1 is a circulating unit; the first cartridge filter 13, the activated carbon filter 14 and the second cartridge filter 15 are installed at the outlet of the solution pump 12.

When the lithium bromide solution is used, the lithium bromide solution is filled into an empty barrel through a pump body to carry out preliminary precipitation, after the interiors of all components of the filter assembly 1 are washed clean by desalted water, sewage is discharged, then the precipitated lithium bromide solution is pumped into the absorber 11 by utilizing a unit vacuum system, after the first security filter 13, the activated carbon filter 14 and the second security filter 15 are installed, the solution pump 12 is started, after the lithium bromide solution is pumped out of the absorber 11, the lithium bromide solution is sequentially filtered by the first security filter 13, the activated carbon filter 14 and the second security filter 15, enters the heat exchanger 16, is subjected to heat exchange treatment by the heat exchanger 16, sequentially enters the generator 17, the first condenser 18 and the evaporator 19, then enters the absorber 11 again to form circulation until the lithium bromide solution circulates in the unit for a specified time, finally the first security filter 13, the second security filter 15 and the activated carbon filter 14 are removed, the filter core and the activated carbon are scrapped, an outlet pipeline of the solution pump 12 is restored to a normal pipeline, and the lithium bromide unit is started, and whether the running condition of the unit is normal is observed; when in use, the first cartridge filter 13, the second cartridge filter 15 and the activated carbon filter 14 have better filtering effect; when in use, the lithium bromide solution circulates in the machine set for 5-6 hours; when in use, the first cartridge filter 13, the activated carbon filter 14 and the second cartridge filter 15 are connected with the solution pump 12 in a split type.

Example two

Referring to fig. 1-4, a concentration function is added on the basis of the first embodiment;

the feed inlet of the absorber 11 is provided with a concentration assembly 2; the concentrating assembly 2 comprises: a circulation pump 21 installed at a feed inlet of the absorber 11; a concentrating kettle 22 which is arranged at the discharge port of the circulating pump 21; the second condenser 23 is fixedly connected with the top of the concentration kettle 22 through a pipeline; a cooler 24 which is communicated with the second condenser 23 through a pipeline; an inner coil is arranged inside the concentration kettle 22.

When the lithium bromide solution is used, after preliminary precipitation, the lithium bromide solution is pumped into the concentration kettle 22 through the circulating pump 21, low-pressure steam is utilized to provide heat for the concentration kettle 22, under the action of heat exchange, water in the solution is extracted from the gas phase of the concentration kettle 22 in a gaseous form, and after passing through the condenser II 23 and the cooler 24 in sequence, one part of the water flows back into the concentration kettle 22, and the other part of the water is discharged from the system, so that the purpose of concentrating the lithium bromide solution is achieved; in use, low pressure steam is used to enter the inner coil to provide heat to the concentrator vessel by heating the inner coil inside the concentrator vessel 22.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lithium bromide solution recovery system, characterized by comprising a filter assembly (1); the filter assembly (1) comprises:

the absorber (11) is characterized in that a discharge hole of the absorber is connected with a solution pump (12) through a pipeline, and a first safety filter (13), an activated carbon filter (14) and a second safety filter (15) are sequentially arranged at a discharge hole of the solution pump (12);

the heat exchanger (16) is connected with the discharge port of the second cartridge filter (15);

the generator (17) is connected with a discharge port of the heat exchanger (16) through a pipeline;

the first condenser (18) is arranged at the discharge port of the generator (17);

-an evaporator (19), said condenser one (18) and said absorber (11) being connected by means of said evaporator (19).

2. A lithium bromide solution recovery system according to claim 1, wherein: the first cartridge filter (13) is a 20-mu m filter, the activated carbon filter (14) is an activated carbon filter, and the second cartridge filter (15) is a 5-mu m filter.

3. A lithium bromide solution recovery system according to claim 1, wherein: the filter assembly (1) is a circulating unit.

4. A lithium bromide solution recovery system according to claim 1, wherein: a feed inlet of the absorber (11) is provided with a concentration component (2); the concentrating assembly (2) comprises:

a circulating pump (21) which is arranged at the feed inlet of the absorber (11);

the concentrating kettle (22) is arranged at the discharge port of the circulating pump (21);

the second condenser (23) is fixedly connected with the top of the concentration kettle (22) through a pipeline;

and the cooler (24) is communicated with the second condenser (23) through a pipeline.

5. A lithium bromide solution recovery system according to claim 4 wherein: an inner coil is arranged in the concentrating kettle (22).

6. A lithium bromide solution recovery system according to claim 2, wherein: the cartridge filter I (13), the activated carbon filter (14) and the cartridge filter II (15) are arranged at the outlet of the solution pump (12).