CN220728563U - Lithium bromide unit - Google Patents
Lithium bromide unit Download PDFInfo
- Publication number
- CN220728563U CN220728563U CN202322243654.4U CN202322243654U CN220728563U CN 220728563 U CN220728563 U CN 220728563U CN 202322243654 U CN202322243654 U CN 202322243654U CN 220728563 U CN220728563 U CN 220728563U
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- Prior art keywords
- evaporator
- pipeline
- temperature regenerator
- absorber
- condenser
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical group [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 56
- 239000006096 absorbing agent Substances 0.000 claims abstract description 50
- 239000000498 cooling water Substances 0.000 claims abstract description 42
- 238000009833 condensation Methods 0.000 claims abstract description 5
- 230000005494 condensation Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 22
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 34
- 230000000694 effects Effects 0.000 description 5
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Abstract
The utility model belongs to the technical field of air conditioners, and discloses a lithium bromide unit. Comprises an absorber, an evaporator, a condenser and a low-temperature regenerator; the absorber and the evaporator are distributed left and right in a shell, the absorber is connected with the evaporator, the condenser and the low-temperature regenerator are distributed left and right in a shell, the condenser is connected with the low-temperature regenerator, and the bottom of the absorber is connected with the upper part of the high-temperature regenerator through a pipeline; the side end of the high-temperature regenerator is respectively connected with the absorber and the high-temperature plate exchanger through pipelines, the top of the high-temperature regenerator is sequentially connected with the low-temperature regenerator and the condensation plate exchanger through pipelines, and a refrigerant box is arranged at the inner bottom of the condenser; the condenser is connected with the evaporator through two branch pipelines. The problem that the phenomenon of insufficient refrigerant can not be generated when the cooling water temperature suddenly decreases or suddenly is high is solved, and meanwhile, the refrigerant pump can not idle when the refrigeration load is small, so that the service life is not influenced.
Description
Technical Field
The utility model belongs to the technical field of air conditioners, and relates to a lithium bromide unit.
Background
The lithium bromide absorption refrigerating unit takes heat energy as power, water as refrigerant and lithium bromide solution as absorbent to prepare cold energy higher than 0 ℃ and is used as a cold source of an air conditioner or a production process.
However, in actual use, when the cooling water temperature of the existing lithium bromide absorption refrigerating unit suddenly decreases or suddenly becomes high, a phenomenon of insufficient refrigerant can be generated, and meanwhile, when the refrigerating load is small, the refrigerant pump can idle, so that the service life is influenced.
Disclosure of Invention
The utility model aims to overcome the defects in the background art, and provides a lithium bromide unit, which solves the problem that the refrigerant is not enough when the cooling water temperature is suddenly reduced or suddenly high, and simultaneously does not idle a refrigerant pump when the refrigeration load is smaller, so that the service life is not influenced. Meanwhile, when cooling water stops, dilution operation can be performed, and the machine can be started again in a short time, and meanwhile, when the cooling capacity is needed in winter in an applicable occasion, the cooling water can be directly cooled by the cooling tower and then supplied to a user for use, and a machine set is not used so as to meet the cooling capacity requirement.
The technical scheme adopted for solving the technical problems is as follows: a lithium bromide unit comprises an absorber, an evaporator, a condenser and a low-temperature regenerator; the absorber and the evaporator are distributed left and right in a shell, the absorber is connected with the evaporator, the condenser and the low-temperature regenerator are distributed left and right in a shell, the condenser is connected with the low-temperature regenerator, and the bottom of the absorber is connected with the upper part of the high-temperature regenerator through a pipeline; the side end of the high-temperature regenerator is respectively connected with the absorber and the high-temperature plate exchanger through pipelines, the top of the high-temperature regenerator is sequentially connected with the low-temperature regenerator and the condensate plate exchanger through pipelines in sequence, and the high-temperature plate exchanger is connected with the low-temperature regenerator through pipelines; the low-temperature plate is connected with the upper part of the absorber and the low-temperature regenerator through pipelines respectively; the water condensation plate is connected with the pipeline condenser; a refrigerant tank is arranged at the bottom in the condenser; the condenser is connected with the evaporator through two branch pipelines.
The condenser is connected with the evaporator through two branch pipelines, specifically, one of the branch pipelines is connected with the side wall of the condenser and the evaporator; the other branch pipeline is connected with the refrigerant box and the evaporator, and the solenoid valve B is arranged on the branch pipeline which is connected with the refrigerant box and the evaporator.
The absorber is connected with the cooling tower through a cooling water inlet pipeline; the cooling water inlet pipeline is provided with a cooling water pump, a temperature sensor and a butterfly valve F.
The pipeline that high temperature regenerator side and absorber are connected is equipped with angle valve A, and the branch road that still connects on the pipeline that high temperature regenerator and low temperature regenerator are connected, and the branch road is connected with the absorber and sets up angle valve B on the branch road.
The cooling water inlet pipeline is connected with the using end through a pipeline, and a butterfly valve E is arranged on the pipeline.
The tail end outlet is connected with the evaporator through a cooling water inlet pipeline, and the tail end inlet is connected with the evaporator through a pipeline A; the cooling water inlet pipeline is provided with a butterfly valve D, a cold water pump and a temperature sensor, and the pipeline A is provided with a butterfly valve B and a temperature sensor.
The absorber is also sequentially connected with the condenser and the using tail end through pipelines. A butterfly valve C and a butterfly valve A are sequentially arranged on a pipeline connected with the tail end of the condenser; and a tapping pipeline between the butterfly valve C and the butterfly valve A is connected with the cooling tower.
Further, the bottom of the absorber is provided with a solution pump A, and the tail end of the solution pump A is connected with the high-temperature regenerator through a pipeline.
Further, the bottom of the evaporator is provided with a refrigerant pump, the top of the refrigerant pump is connected with the bottom of the evaporator through a pipeline, the tail end of the refrigerant pump is connected with the top of the evaporator through a pipeline, the pipeline connected with the bottom of the evaporator is connected with the bottom of the absorber through a valve body pipeline, and the valve body pipeline is provided with an electromagnetic valve A.
Further, a combustor is arranged in the high-temperature regenerator.
Further, a solution pump B is arranged on a pipeline connected with the low-temperature regenerator through the low-temperature plate exchanger.
The unit is also provided with a PLC control system, and the temperature sensor, the butterfly valve A, the butterfly valve B, the butterfly valve C, the solenoid valve B, the condenser, the low-temperature regenerator, the condensation plate exchanger, the high-temperature regenerator, the cooling tower, the high-temperature plate exchanger, the solution pump B, the low-temperature plate exchanger, the angle valve A, the angle valve B, the absorber, the solution pump A, the solenoid valve A, the refrigerant pump, the evaporator, the butterfly valve D, the cold water pump, the butterfly valve E, the butterfly valve F and the cooling water pump are respectively connected with the PLC control system, and the working functions of the unit can be realized without limiting a specific model.
The utility model relates to an absorption refrigeration lithium bromide unit which takes water as a refrigerant and lithium bromide solution as an absorbent, wherein a refrigerant pipe with an electromagnetic valve B arranged between the refrigerant pipe and the refrigerant pipe is arranged at the bottom of a refrigerant box arranged in a condenser, and the refrigerant condensed by the condenser enters a pipeline in an evaporator, so that the refrigerant quantity supplied to the evaporator from the refrigerant box can be controlled by switching the electromagnetic valve B.
The high temperature regenerator separates the solute and solvent of lithium bromide solution in the high temperature regenerator after the burner burns, high temperature steam is generated, the solution enters the low temperature regenerator through a pipeline, the solution is secondarily heated in the low temperature regenerator, the water in the solution is continuously separated and enters the condenser, the water is condensed into refrigerant water by cooling water, the water enters the evaporator in two parts, the first part directly enters the evaporator through the pipeline, the second part is stored in a refrigerant box in the condenser, and the water flows into the evaporator through a control switch of an electromagnetic valve B.
When the unit is just started, because the unit load is smaller, for example, the opening of the burner is less than 20%, the quantity of refrigerant steam generated by the high-temperature regenerator is less, so that the refrigerant water in the evaporator is only evaporated and not regenerated, the evaporator can be empty for a long time, the refrigerating effect is poor, the electromagnetic valve B is opened at the moment, the refrigerant water in the refrigerant tank enters the evaporator, the quantity of water in the evaporator is ensured, and the refrigerating effect is ensured.
When the unit needs to heat, the angle valve A and the angle valve B are opened at the moment, so that the aim is that the high-temperature regenerator generates refrigerant steam when in combustion, and part of the steam directly enters the absorber through the angle valve B and enters the evaporator to heat water in the cold water inlet pipeline for a user at the end of use. The solution enters the high-temperature regenerator through the solution pump A, and then directly enters the absorber through the angle valve A by the high-temperature regenerator for reciprocating circulation.
When the unit is stopped, the concentrated solution needs to be diluted into the diluted solution, at the moment, the dilution operation is needed, at the moment, the electromagnetic valve A can be opened, and the refrigerant water in the evaporator enters the absorber through the electromagnetic valve A, so that the dilution operation speed is accelerated.
Compared with the prior art, the utility model has the following beneficial effects:
according to the lithium bromide unit provided by the utility model, when the temperature of cooling water is suddenly reduced, the phenomenon of insufficient refrigerant is avoided, meanwhile, dilution operation can be performed when the cooling water is stopped, the unit can be started again in a short time, meanwhile, when the cooling capacity is needed in winter in a suitable occasion, cold water can be directly cooled through the cooling tower and then supplied to the tail end for use, the unit is not used to meet the cooling capacity requirement, the starting time of the unit is shortened, and the energy cost is saved.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic diagram of a lithium bromide unit according to the present utility model.
In the drawings, a butterfly valve A, a butterfly valve B, a butterfly valve C, a solenoid valve B, a condenser, a low-temperature regenerator, a condensate plate exchanger, a high-temperature regenerator, a cooling tower, a burner, a high-temperature plate exchanger, a solution pump B, a low-temperature plate exchanger, a corner valve A, a corner valve B, a corner valve 16, an absorber, a solution pump A, a solenoid valve 19, a refrigerant pump 20, an evaporator, a butterfly valve D, a cold water pump 22-1, a cold water inlet pipeline 23, a use terminal, a butterfly valve E, a butterfly valve 25, a butterfly valve F, a cooling water pump 26-1, a cold water inlet pipeline 27 and a refrigerant tank.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to the following examples.
Example 1
A lithium bromide unit, as shown in figure 1, comprises an absorber 16, an evaporator 20, a condenser 5 and a low-temperature regenerator 6; the absorber 16 and the evaporator 20 are distributed left and right in a shell, the absorber 16 is connected with the evaporator 20, the condenser 5 and the low-temperature regenerator 6 are distributed left and right in a shell, the condenser 5 is connected with the low-temperature regenerator 6, and the bottom of the absorber 16 is connected with the upper part of the high-temperature regenerator 8 through a pipeline; the side end of the high-temperature regenerator 8 is respectively connected with the absorber 16 and the high-temperature plate exchanger 11 through pipelines, the top of the high-temperature regenerator 8 is sequentially connected with the low-temperature regenerator 6 and the condensate plate exchanger 7 through pipelines, and the high-temperature plate exchanger 11 is connected with the low-temperature regenerator 6 through pipelines; the low-temperature plate exchanger 13 is respectively connected with the upper part of the absorber 16 and the low-temperature regenerator 6 through pipelines; the condensation plate exchanger 7 is connected through the pipeline condenser 5; a refrigerant tank 27 is arranged at the bottom in the condenser 5; the condenser 5 is connected to the evaporator 20 by two branch lines.
The condenser 5 is connected with the evaporator 20 through two branch pipelines, specifically, one of the branch pipelines is connected with the side wall of the condenser 5 and the evaporator 20; the other branch line connects the refrigerant tank 27 and the evaporator 20, and the solenoid valve B4 is provided in the branch line connecting the refrigerant tank 27 and the evaporator 20.
The absorber 16 is connected with the cooling tower 9 through a cooling water inlet pipeline 26-1; the cooling water inlet pipeline 26-1 is provided with a cooling water pump 26, a temperature sensor and a butterfly valve F25.
The pipeline of the side end of the high temperature regenerator 8 connected with the absorber 16 is provided with an angle valve A14, the pipeline of the high temperature regenerator 8 connected with the low temperature regenerator 6 is also branched, the branch is connected with the absorber 16, and the branch is provided with an angle valve B15.
The cooling water inlet pipeline 26-1 is connected with the using end 23 through a pipeline, and a butterfly valve E24 is arranged on the pipeline.
The outlet of the tail end 23 is connected with the evaporator 20 through a cooling water inlet pipeline 26-1, and the inlet of the tail end 23 is connected with the evaporator 20 through a pipeline A; the cooling water inlet pipeline 26-1 is provided with a butterfly valve D21, a cold water pump 22 and a temperature sensor, and the pipeline A is provided with a butterfly valve B2 and a temperature sensor.
The absorber 16 is also connected in turn to the condenser 5, the end of use 23, by a pipeline. A butterfly valve C3 and a butterfly valve A1 are sequentially arranged on a pipeline connected with the condenser 5 and the using tail end 23; and a tapping pipeline between the butterfly valve C3 and the butterfly valve A1 is connected with the cooling tower 9.
The bottom of the absorber 16 is provided with a solution pump A17, and the tail end of the solution pump A17 is connected with the high-temperature regenerator 8 through a pipeline.
The bottom of the evaporator 20 is provided with a refrigerant pump 19, the top of the refrigerant pump 19 is connected with the bottom of the evaporator 20 through a pipeline, the tail end of the refrigerant pump 19 is connected with the top of the evaporator 20 through a pipeline, the pipeline connected with the bottom of the evaporator 20 of the refrigerant pump 19 is connected with the bottom of the absorber 16 through a valve body pipeline, and the valve body pipeline is provided with an electromagnetic valve A18.
A burner 10 is provided in the high temperature regenerator 8.
The low-temperature plate exchanger 13 is provided with a solution pump B12 on a pipeline connected with the low-temperature regenerator 6.
The unit is also provided with a PLC control system, and the temperature sensor, the butterfly valve A1, the butterfly valve B2, the butterfly valve C3, the solenoid valve B4, the condenser 5, the low-temperature regenerator 6, the condensate plate 7, the high-temperature regenerator 8, the cooling tower 9, the high-temperature plate 11, the solution pump B12, the low-temperature plate 13, the angle valve A14, the angle valve B15, the absorber 16, the solution pump A17, the solenoid valve A18, the refrigerant pump 19, the evaporator 20, the butterfly valve D21, the cold water pump 22, the butterfly valve E24, the butterfly valve F25 and the cooling water pump 26 are respectively connected with the PLC control system, and the working functions of the unit are realized without limiting a specific model.
The cold water is cooled by the cold water from the low temperature in the evaporator 20, and the cold water itself absorbs the heat of the cold water and evaporates to become cold vapor, which enters the absorber 16 and is absorbed by the concentrated solution to become the dilute solution.
The dilute solution in the absorber 16 is sent to the high temperature regenerator 8 by the solution pump a17, passes through the low temperature plate exchanger 13 and the high temperature plate exchanger 11 during the period, is heated to a solution with an intermediate concentration in the high temperature regenerator 8, and enters the low temperature regenerator 6 through the high temperature plate exchanger 11. The water vapor is heated again by the high-temperature steam generated by the high-temperature regenerator 8 to become a concentrated solution, the concentrated solution is cooled by the low-temperature plate exchanger 13 and then enters the absorber 16, and the part of the concentrated solution absorbs the water vapor evaporated from the evaporator 20 to become a dilute solution, and the solution is circulated repeatedly.
The solution is in the low temperature regenerator 6, the water vapor generated by heating the intermediate concentration solution by the steam from the high temperature regenerator 8 enters the condenser 5, the water is condensed into liquid coolant water by cooling water, then the water is divided into two parts and enters the evaporator 20, the first part directly enters the evaporator through a pipeline, the second part is stored in the condenser 5, and the water flows into the evaporator 20 through the control switch of the electromagnetic valve B4.
When the cooling water inlet pipeline 26-1 is lower than 20 ℃, the unit load is small, and the amount of refrigerant steam generated in the high-temperature regenerator 8 is small, so that the amount of refrigerant entering the evaporator 20 is small. At this time, by opening the solenoid valve B4, the refrigerant water in the refrigerant tank 27 is introduced into the evaporator 20 to satisfy the water demand in the evaporator 20, and simultaneously satisfy the refrigeration demand.
When the temperature in the condenser 5 is above 50 ℃, the condensing effect is poor, and the solenoid valve B4 is opened to meet the requirement of water in the evaporator 20 temporarily for maintaining the refrigerating effect for a period of time, and meanwhile, the refrigerating requirement can be met temporarily, and the refrigerant pump 191 can not idle due to no refrigerant water, so as to protect the refrigerant 19 from being used.
When the temperature of the cooling water is lower than a certain temperature, for example, below 20 ℃, the electromagnetic valve B4 can be opened, so that the cooling water enters the evaporator 20 to meet the use requirement of the unit, and when the temperature of the cooling water is above 25 ℃, the electromagnetic valve B4 is closed.
When the outdoor temperature in winter does not reach below 0 ℃, the user also has the requirement of cold energy (such as places of a data center, a machine room and the like), the butterfly valve of the cold water inlet and outlet can be closed, the cooling water is led into the cold water pipeline through the cooling water pump 26, the cooling water is used for cooling the user, after the cooling water is used, backwater is directly led into the cooling tower 9, natural cooling is realized, and the operation can be realized through switching among pipeline valves.
The switching operation is as follows:
the switching operation is as follows:
when cooling water is used for cooling, the butterfly valve B2, the butterfly valve C3, the butterfly valve D21 and the butterfly valve F25 are closed, the butterfly valves A1 and E24 are opened, the cooling water pump 26 is started, at the moment, the cooling water is introduced into the using end 23 to cool a user, the water after the temperature rise directly enters the cooling tower 9, and is cooled by the cooling tower 9 and then is sent to the using end 23 through the cooling water pump 26 for repeated use.
When the unit is used for cooling, the butterfly valves A1 and E24 are closed, the butterfly valves B2, C3, D21 and F25 are opened, and the unit can realize the refrigerating effect.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (10)
1. The lithium bromide unit is characterized by comprising an absorber (16), an evaporator (20), a condenser (5) and a low-temperature regenerator (6); the absorber (16) and the evaporator (20) are distributed left and right in a shell, the absorber (16) is connected with the evaporator (20), the condenser (5) and the low-temperature regenerator (6) are distributed left and right in the shell, the condenser (5) is connected with the low-temperature regenerator (6), and the bottom of the absorber (16) is connected with the upper part of the high-temperature regenerator (8) through a pipeline; the side end of the high-temperature regenerator (8) is respectively connected with the absorber (16) and the high-temperature plate exchanger (11) through pipelines, the top of the high-temperature regenerator (8) is sequentially connected with the low-temperature regenerator (6) and the condensate plate exchanger (7) through pipelines, and the high-temperature plate exchanger (11) is connected with the low-temperature regenerator (6) through pipelines; the low-temperature plate exchanger (13) is respectively connected with the upper part of the absorber (16) and the low-temperature regenerator (6) through pipelines; the condensation plate exchanger (7) is connected with the pipeline condenser (5); a refrigerant tank (27) is arranged at the bottom in the condenser (5); the condenser (5) is connected with the evaporator (20) through two branch pipes.
2. A lithium bromide unit according to claim 1, wherein the condenser (5) is connected to the evaporator (20) by two branch lines, in particular wherein one branch line connects the side wall of the condenser (5) and the evaporator (20); the other branch pipeline is connected with the refrigerant tank (27) and the evaporator (20), and the solenoid valve B (4) is arranged on the branch pipeline which is connected with the refrigerant tank (27) and the evaporator (20).
3. A lithium bromide unit according to claim 2, characterized in that the absorber (16) is connected to the cooling tower (9) via a cooling water inlet line (26-1); the cooling water inlet pipeline (26-1) is provided with a cooling water pump (26), a temperature sensor and a butterfly valve F (25).
4. A lithium bromide unit according to claim 3, characterized in that the pipeline of the side end of the high temperature regenerator (8) connected with the absorber (16) is provided with an angle valve a (14), the pipeline of the high temperature regenerator (8) connected with the low temperature regenerator (6) is also branched, the branch is connected with the absorber (16) and the branch is provided with an angle valve B (15).
5. A lithium bromide unit according to claim 4, characterized in that the cooling water inlet line (26-1) is connected to the end of use (23) via a line, and that a butterfly valve E (24) is arranged on the line.
6. A lithium bromide unit according to claim 5, wherein the outlet of the end (23) is connected to the evaporator (20) via a cooling water inlet line (26-1), and the inlet of the end (23) is connected to the evaporator (20) via a line a; a butterfly valve D (21), a cold water pump (22) and a temperature sensor are arranged on a cooling water inlet pipeline (26-1), and a butterfly valve B (2) and a temperature sensor are arranged on a pipeline A.
7. A lithium bromide unit according to claim 6, wherein the absorber (16) is further connected to the condenser (5) and the use terminal (23) sequentially via a pipeline.
8. The lithium bromide unit according to claim 7, wherein a butterfly valve C (3) and a butterfly valve A (1) are sequentially arranged on a pipeline connected with the condenser (5) and the using end (23); and tapping pipelines between the butterfly valve C (3) and the butterfly valve A (1) are connected with a cooling tower (9).
9. A lithium bromide unit according to claim 8, characterized in that the bottom of the absorber (16) is provided with a solution pump a (17), and the end of the solution pump a (17) is connected with the high temperature regenerator (8) through a pipeline.
10. The lithium bromide unit according to claim 9, wherein a refrigerant pump (19) is arranged at the bottom of the evaporator (20), the top of the refrigerant pump (19) is connected with the bottom of the evaporator (20) through a pipeline, the tail end of the refrigerant pump (19) is connected with the top of the evaporator (20) through a pipeline, the pipeline of the refrigerant pump (19) connected with the bottom of the evaporator (20) is connected with the bottom of the absorber (16) through a valve body pipeline, and an electromagnetic valve A (18) is arranged on the valve body pipeline; a burner (10) is arranged in the high-temperature regenerator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322243654.4U CN220728563U (en) | 2023-08-21 | 2023-08-21 | Lithium bromide unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322243654.4U CN220728563U (en) | 2023-08-21 | 2023-08-21 | Lithium bromide unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220728563U true CN220728563U (en) | 2024-04-05 |
Family
ID=90494641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322243654.4U Active CN220728563U (en) | 2023-08-21 | 2023-08-21 | Lithium bromide unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220728563U (en) |
-
2023
- 2023-08-21 CN CN202322243654.4U patent/CN220728563U/en active Active
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