CN114061171A - Lithium bromide refrigerator system with cooling water temperature control device - Google Patents
Lithium bromide refrigerator system with cooling water temperature control device Download PDFInfo
- Publication number
- CN114061171A CN114061171A CN202111305341.6A CN202111305341A CN114061171A CN 114061171 A CN114061171 A CN 114061171A CN 202111305341 A CN202111305341 A CN 202111305341A CN 114061171 A CN114061171 A CN 114061171A
- Authority
- CN
- China
- Prior art keywords
- lithium bromide
- bromide refrigerator
- temperature
- cooling water
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 132
- 239000000498 cooling water Substances 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 230000011664 signaling Effects 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a lithium bromide refrigerator system with a cooling water temperature control device, which comprises a lithium bromide refrigerator, a cooling tower, an expansion water tank and a cooling water pipeline system, wherein the cooling water pipeline system comprises a full-circulation loop and a temperature control loop, the full-circulation loop sequentially passes through the lithium bromide refrigerator, the cooling tower and the expansion water tank and then returns to the lithium bromide refrigerator through a cooling water pump, and the temperature control loop directly passes through the lithium bromide refrigerator and then returns to the lithium bromide refrigerator through a loop control valve. According to the invention, the temperature control loop is additionally arranged in the cooling water pipeline system, so that the temperature of the cooling water can be quickly raised under the condition of low temperature of the external environment such as winter and the like, the temperature reaches the lower limit value of the temperature of the cooling water inlet of the lithium bromide refrigerator, the lithium bromide refrigerator can be started at one time, and the refrigeration system can be further ensured to normally supply chilled water for an air conditioner.
Description
Technical Field
The lithium bromide refrigerator system with the cooling water temperature control device is characterized by comprising a water tank, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe.
Background
In the operation process of the lithium bromide refrigerator, cooling water is required to cool regenerated lithium bromide refrigerant, the lithium bromide refrigerant is ensured to be recycled, the temperature of the cooling water rises after passing through the refrigerator, the cooling water is generally pumped to a cooling tower by a water pump, a fan of the cooling tower is rotated to dissipate heat, the temperature of the cooling water is reduced, and the cooling water circularly flows into the lithium bromide refrigerator to cool the refrigerant again.
In the operation process of the lithium bromide refrigerator, if the temperature of cooling water is too low, the serious problems of lithium bromide solution crystallization, refrigerant water pollution and the like can be caused. Therefore, the inlet temperature of the cooling water of the lithium bromide refrigerator has a lower limit value requirement, and is generally required to be not lower than 19 ℃. If the refrigerator is in operation, the time that the temperature of the cooling water inlet is lower than 19 ℃ exceeds 30 minutes, the refrigerator controller gives an alarm and gives a stop instruction, the refrigerator is stopped and enters a dilution operation state, and the refrigerator can be restarted after the dilution operation process of the refrigerator is finished. If the outdoor temperature is below zero, the refrigerator generally needs to be started repeatedly for several times, and the refrigerator can normally operate when the cooling water temperature of the refrigerator rises to above 19 ℃. This makes the starting-up process of the refrigerator longer, which affects the rapid supply of chilled water.
SUMMARY OF THE PATENT FOR INVENTION
The invention provides a lithium bromide refrigerator system with a cooling water temperature control device, which can rapidly increase the temperature of cooling water under the condition of low temperature of external environment such as winter and the like by additionally arranging a temperature control loop in a cooling water pipeline system so as to enable the temperature of the cooling water to reach the lower limit value of the temperature of a cooling water inlet of a lithium bromide refrigerator, avoid the problem that the refrigerator runs slowly or breaks down due to the low temperature of the cooling water in a water inlet pipeline, ensure that the lithium bromide refrigerator can be started at one time, and further ensure that the refrigeration system can normally supply chilled water for an air conditioner. The purpose of the invention is realized by the following technical scheme:
the utility model provides a lithium bromide refrigerator system with cooling water temperature control device, includes lithium bromide refrigerator, cooling tower, expansion tank and cooling water pipe-line system, cooling water pipe-line system includes full circulation circuit and temperature control circuit, full circulation circuit gets back to the lithium bromide refrigerator through cooling water pump behind lithium bromide refrigerator, cooling tower, the expansion tank in proper order, temperature control circuit directly gets back to in the lithium bromide refrigerator through the control of return circuit control valve behind the lithium bromide refrigerator.
Furthermore, the temperature control loop and the full circulation loop share a water inlet pipeline and a water outlet pipeline.
Furthermore, a temperature sensor is arranged on the water inlet pipeline.
Further, the lithium bromide refrigerator system also comprises a controller, the loop control valve comprises an electric valve, the temperature sensor and the electric valve are electrically connected to the controller, and the controller receives a signal of the temperature sensor and controls the electric valve to act according to the temperature.
Further, the temperature control loop comprises a first branch circuit and a second branch circuit which are connected in parallel, a first loop control valve is arranged on the first branch circuit, the first loop control valve comprises an electric valve, the temperature sensor and the electric valve are electrically connected to a controller, and the controller receives signals of the temperature sensor and controls the electric valve to act according to the temperature; and a first manual valve is arranged on the second branch and used as a second loop control valve.
Further, the first loop control valve further comprises a second manual valve, and the second manual valve and the electric valve are connected in series in the first branch.
Further, the electric valve adopts an electric butterfly valve, and the first manual valve and/or the second manual valve adopts a manual butterfly valve.
Furthermore, a total manual valve is arranged on the water outlet pipeline, and a total electric valve is arranged on a water inlet pipeline of the cooling water pump leading to the lithium bromide refrigerator.
Further, the controller is configured to open the control electric valve to switch on the first branch of the temperature control loop when the controller judges that the water temperature in the water inlet pipeline is lower than a first threshold value according to the signal transmitted by the temperature sensor; when the temperature of the water in the water inlet pipeline is judged to be higher than a second threshold value according to the signal transmitted by the temperature sensor, the electric valve is controlled to close and break the circulation of the cooling water in the temperature control loop.
Further, the first threshold value is set to 19 ℃ and the second threshold value is set to 32 ℃.
The invention has the beneficial effects that:
(1) the temperature control loop connected with the conventional circulation in parallel is distributed in a lithium bromide refrigerator system, and the temperature sensor, the controller and the control valve are skillfully utilized, so that the opening and closing of the control valve in the temperature control loop can be adjusted according to the temperature change condition of a cooling water inlet of the refrigerator in a low-temperature environment, part or all of cooling water with higher temperature flowing out of a water outlet pipeline directly flows back to a water inlet pipeline through the temperature control pipeline without entering a cooling tower for full circulation, the shutdown or system failure caused by too low temperature of the cooling water in the low-temperature environment temperature is effectively avoided, and the quick and stable opening of the refrigerator is ensured;
(2) the second manual valve and the electric valve are adopted in the first branch of the temperature control loop to be connected in series, so that when the electric valve fails and cannot be closed, a worker can operate the manual valve to close to block the circulation of cooling water in the first branch; meanwhile, the second branch with the first manual valve is connected in parallel with the first branch, so that when the electric valve fails and cannot be started, the first manual valve can be started through operation of a worker to communicate the circulation of cooling water in the second branch, and the normal operation of the temperature control loop is guaranteed.
Drawings
Figure 1 is a schematic diagram of a lithium bromide refrigerator system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
The embodiment provides a lithium bromide refrigerator system with a cooling water temperature control device, which comprises a lithium bromide refrigerator 100, a cooling tower 200, an expansion water tank 300 and a cooling water pipeline system, wherein the cooling water pipeline system comprises a cooling water outlet pipeline 401 of the lithium bromide refrigerator, a water feeding pipeline 411 of the cooling tower, a condensation pipeline 412, a water discharging pipeline 413 of the cooling tower, a cooling water inlet pipeline 402 of the lithium bromide refrigerator, a first temperature control pipeline 421 and a second temperature control pipeline 422.
As shown in fig. 1, a cooling water inlet pipeline 402 of the lithium bromide refrigerator passes through the lithium bromide refrigerator 100 and then is connected with a water outlet pipeline 401, a cooling tower water inlet pipeline is connected with the water outlet pipeline 401 and the cooling tower 200, a condensation pipeline 412 is connected with the cooling tower 200 and the expansion water tank 300, and a cooling tower water outlet pipeline 413 is connected with the expansion water tank 300 and the water inlet pipeline 401. Here, the cooling water inlet line 402 is connected to the cooling water outlet line 401, the cooling tower water supply line 401, the cooling tower 200, the expansion tank 300, the cooling tower water discharge line 413, and the water inlet line 402 to form a cooling water full circulation loop of the lithium bromide refrigerator system, in which the cooling water enters the cooling tower 200 through the water outlet line 401 and the cooling tower water supply line 411 for cooling, and condensed water is formed through the condensation line 412 and enters the expansion tank 300, and then enters the lithium bromide refrigerator 100 through the cooling tower water discharge line 413 and the water inlet line 402 again to complete refrigeration, and then enters the next circulation through the water outlet line 401.
Meanwhile, a cooling water outlet pipeline 401 of the lithium bromide refrigerator directly returns to a water inlet pipeline 402 through a first temperature control pipeline 421 and a second temperature control pipeline 422 which are connected in parallel to form a temperature control loop, wherein the water outlet pipeline 401 is connected with the first temperature control pipeline 421, is connected with the water inlet pipeline 402 and is connected with the water outlet pipeline 401 to form a first branch of the temperature control loop; the water outlet pipeline 402 is connected with the second temperature control pipeline 422, the water inlet pipeline 402 is connected with the water outlet pipeline 401 to form a second branch of a temperature control loop, for convenient control, a first manual butterfly valve V3 is arranged on the second temperature control pipeline 422, a first electric butterfly valve V1 and a second manual butterfly valve V2 which are connected in series are arranged on the first temperature control pipeline 421, a temperature sensor T1 is arranged at a position, close to a water inlet of the lithium bromide refrigerator 100, on the water inlet pipeline 402, the temperature sensor T1 and the first electric butterfly valve V1 are electrically connected to the controller CM, and the controller CM receives a temperature sensor T1 signal and controls the first electric butterfly valve V1 to act according to the temperature condition of the water inlet. Specifically, the control logic of the controller CM is that when it determines that the water temperature in the water inlet pipeline is lower than a first threshold value according to a signal transmitted by the temperature sensor, the coupling control electric valve is opened to switch on a first branch of the temperature control loop; when the temperature of water in the water inlet pipeline is judged to be higher than a second threshold value according to signals transmitted by the temperature sensor, the electric valve is controlled to close and break the circulation of cooling water in the temperature control loop, and in the specific implementation process, the first threshold value is set to be 19 ℃ and the second threshold value is set to be 32 ℃ according to field experience.
In the illustrated embodiment, a cooling water pump P1 is further provided on the water inlet pipe 402, a temperature sensor T1 is provided on the pipe between the cooling water pump P1 and the cooling water inlet of the lithium bromide refrigerator 100, and a total electric butterfly valve V5 is further provided between the cooling water pump P1 and the temperature sensor T1; a first general manual butterfly valve V4 is arranged on a water inlet pipeline 402 connected between a cooling water pump P1 and a temperature control loop and a cooling tower sewer pipeline 413, and a second general manual butterfly valve V6 is arranged on a water outlet pipeline 401.
The operation of water temperature regulation using the lithium bromide refrigerator system of the preferred embodiment shown in the figure is as follows:
under normal conditions, the second manual butterfly valve V2 is open and the first manual butterfly valve V3 is closed. When the temperature sensor T1 detects that the inlet temperature of the cooling water of the lithium bromide refrigerator is lower than 19 ℃, the controller CM sends an opening command to the first electric butterfly valve V1, and after the controller CM detects that the first electric butterfly valve V1 is opened to the position signal, the opening command is cut off, and the first electric butterfly valve V1 is kept in a full-open state. After the cooling water of the lithium bromide refrigerator 100 absorbs the heat in the refrigerator, part or all of the cooling water output from the water outlet pipeline 401 does not enter the cooling tower any more, but returns to the water inlet of the cooling water pump after passing through a first branch passage formed by an electric butterfly valve V1 and a second manual butterfly valve V2 which are communicated in series, and is sent into the lithium bromide refrigerator 100 again through the cooling water pump, and the cooling water in the first branch passage does not enter the cooling tower 200 any more for heat dissipation, so that the heat dissipation of the cooling water is reduced, and the temperature of the cooling water in the water inlet pipeline 402 can be rapidly increased. Tests have shown that the temperature of the cooling water can be raised to 19 ℃ or higher in 20 minutes. Since the nominal inlet temperature of the cooling water of the lithium bromide refrigerator is 32 ℃, and a part of low-temperature cooling water is stored in the water feeding pipe and the water discharging pipe of the cooling tower, in order to avoid the rapid reduction of the temperature of the cooling water caused by the circulation of the cooling water entering the cooling tower 200 after the first electric valve V1 is closed, the controller CM sends a closing command to the first electric butterfly valve V1 only when the temperature of the cooling water of the lithium bromide refrigerator is higher than 32 ℃. Only when the inlet temperature of the lithium bromide refrigerator cooling water is again below 19 c will the first electro valve V1 be opened again. The first electric valve V1 will be closed again when the inlet temperature of the chiller cooling water is higher than 32 ℃.
When the first electric butterfly valve V1 fails, the passage can be shut off by closing the second manual butterfly valve V2. The first manual butterfly valve V3 is manually operated to warm up the cooling water. When the inlet temperature of the cooling water is higher than 32 ℃, the butterfly valve V3 is manually closed, and the cooling water enters the cooling tower for normal circulation.
According to the invention, the temperature control loop is arranged in the refrigerating machine system, and the electric butterfly valve, the temperature sensor and the controller are correspondingly arranged, so that the system can automatically adjust the start and stop of the control valve in the temperature control loop according to the temperature of cooling water under the external environment condition, and other redundant heating devices are not needed for heating the cooling water. When the cooling water temperature is low, the first electric butterfly valve V1 is automatically opened, the cooling water does not enter the cooling tower for circulation, and the water temperature is gradually increased; in addition, through the serial connection of the second manual butterfly valve V2 and the first electric butterfly valve V1, the parallel connection of the first manual butterfly valve V3, the second manual butterfly valve V2 and the first electric butterfly valve V1, when the first electric butterfly valve V1 or the controller CM fails, an operator can autonomously operate the first manual butterfly valve V3 to manually improve the cooling water temperature, and the normal opening of the lithium bromide refrigerator is ensured.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, while the invention has been described in detail with reference to the foregoing preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims; the sizes in the drawings and the embodiments are not related to specific objects, and are not used for limiting the protection scope of the invention, and the sizes of the objects can be selected and changed according to actual needs.
Claims (10)
1. The utility model provides a lithium bromide refrigerator system with cooling water temperature control device, includes lithium bromide refrigerator, cooling tower, expansion tank and cooling water pipe-line system, its characterized in that, cooling water pipe-line system includes full circulation circuit and temperature control circuit, full circulation circuit gets back to the lithium bromide refrigerator through cooling water pump behind lithium bromide refrigerator, cooling tower, the expansion tank in proper order, temperature control circuit directly gets back to in the lithium bromide refrigerator through the control of return circuit control valve behind the lithium bromide refrigerator.
2. The lithium bromide refrigerator system of claim 1, wherein the temperature control loop and the full circulation loop share a water inlet line and a water outlet line.
3. The lithium bromide refrigerator system of claim 2, wherein a temperature sensor is disposed on the water inlet line.
4. The lithium bromide chiller system of claim 3 further comprising a controller, the loop control valve comprising an electrically operated valve, the temperature sensor and electrically operated valve being electrically connected to the controller, the controller receiving the temperature sensor signal and controlling the operation of the electrically operated valve in response to the temperature.
5. The lithium bromide refrigerator system of claim 4, wherein the temperature control loop comprises a first branch and a second branch connected in parallel, a first loop control valve is disposed on the first branch, the first loop control valve comprises an electric valve, the temperature sensor and the electric valve are electrically connected to a controller, and the controller receives a temperature sensor signal and controls the electric valve to act according to the temperature; and a first manual valve is arranged on the second branch and used as a second loop control valve.
6. The lithium bromide chiller system of claim 4 or 5 wherein the first loop control valve further comprises a second manual valve, the second manual valve and the electric valve being connected in series in the first branch.
7. The lithium bromide refrigerator system of claim 6, wherein the electrically operated valve is an electrically operated butterfly valve and the first and/or second manually operated valves are manual butterfly valves.
8. The lithium bromide refrigerator system according to any one of claims 3-7, wherein a total manual valve is arranged on the water outlet pipeline, and a total electric valve is arranged on a water inlet pipeline of the cooling water pump to the lithium bromide refrigerator.
9. The lithium bromide refrigerator system according to any one of claims 3-7, wherein the controller is configured to open the control electric valve to switch on the first branch of the temperature control loop when the controller determines that the temperature of water in the water inlet pipeline is lower than the first threshold according to the signal transmitted by the temperature sensor; when the temperature of the water in the water inlet pipeline is judged to be higher than a second threshold value according to the signal transmitted by the temperature sensor, the electric valve is controlled to close and break the circulation of the cooling water in the temperature control loop.
10. The lithium bromide refrigerator system of claim 9 wherein the first threshold is set at 19 ℃ and the second threshold is set at 32 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305341.6A CN114061171A (en) | 2021-11-05 | 2021-11-05 | Lithium bromide refrigerator system with cooling water temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111305341.6A CN114061171A (en) | 2021-11-05 | 2021-11-05 | Lithium bromide refrigerator system with cooling water temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114061171A true CN114061171A (en) | 2022-02-18 |
Family
ID=80274116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111305341.6A Pending CN114061171A (en) | 2021-11-05 | 2021-11-05 | Lithium bromide refrigerator system with cooling water temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114061171A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249471A (en) * | 1993-02-24 | 1994-09-06 | Takasago Thermal Eng Co Ltd | Cold water manufacturing system |
| CN201028702Y (en) * | 2007-04-12 | 2008-02-27 | 武汉钢铁(集团)公司 | Low-energy consumption lithium bromide central refrigerating equipment |
| JP2008215680A (en) * | 2007-03-01 | 2008-09-18 | Sanki Eng Co Ltd | Cold medium refrigerating/freezing equipment |
| CN102628624A (en) * | 2012-04-25 | 2012-08-08 | 上禾谷能源科技（北京）有限公司 | Cascade lithium bromide refrigeration and cold storage system |
| CN206875639U (en) * | 2017-05-23 | 2018-01-12 | 深圳钰湖电力有限公司 | A kind of comprehensive central refrigerating system of office building |
| CN111089440A (en) * | 2019-12-16 | 2020-05-01 | 珠海格力电器股份有限公司 | Water-cooling air conditioning system and control method |
-
2021
- 2021-11-05 CN CN202111305341.6A patent/CN114061171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249471A (en) * | 1993-02-24 | 1994-09-06 | Takasago Thermal Eng Co Ltd | Cold water manufacturing system |
| JP2008215680A (en) * | 2007-03-01 | 2008-09-18 | Sanki Eng Co Ltd | Cold medium refrigerating/freezing equipment |
| CN201028702Y (en) * | 2007-04-12 | 2008-02-27 | 武汉钢铁(集团)公司 | Low-energy consumption lithium bromide central refrigerating equipment |
| CN102628624A (en) * | 2012-04-25 | 2012-08-08 | 上禾谷能源科技（北京）有限公司 | Cascade lithium bromide refrigeration and cold storage system |
| CN206875639U (en) * | 2017-05-23 | 2018-01-12 | 深圳钰湖电力有限公司 | A kind of comprehensive central refrigerating system of office building |
| CN111089440A (en) * | 2019-12-16 | 2020-05-01 | 珠海格力电器股份有限公司 | Water-cooling air conditioning system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014016B (en) | Fluorine pump natural cooling evaporation type condensation water chiller and control method thereof | |
| KR101727561B1 (en) | Energy-saving industrial air-conditioner and the operation method | |
| CN108534394B (en) | Group control optimization control method for loading and unloading of double units of ground source heat pump | |
| WO2021227365A1 (en) | Anti-freezing protection method, anti-freezing protection system, and heat pump unit of water system | |
| US11543148B2 (en) | Air conditioning system and control method therof | |
| CN108644973B (en) | Multi-split air-conditioning floor heating system and anti-freezing control method thereof | |
| CN114279012B (en) | Air conditioning system with interconnected standby device and control method thereof | |
| JP2011144951A (en) | Air conditioner | |
| CN114061171A (en) | Lithium bromide refrigerator system with cooling water temperature control device | |
| CN101929770B (en) | Control circuit of hot water air conditioner | |
| CN213066431U (en) | New fan with function of preventing frostbite | |
| CN107635377B (en) | A kind of base station heat management system and thermal management algorithm | |
| JP2016008775A (en) | Heat pump chiller | |
| CN110411066B (en) | Oil cooling system of water chilling unit and control method thereof | |
| CN109539432B (en) | Air conditioner cooling water circulation system and air conditioner cooling water loop control method | |
| CN205690767U (en) | Power distribution system with refrigeration and heating functions | |
| CN109059400B (en) | Full-automatic intelligent regulation energy-saving type cooling system | |
| CN114294737B (en) | Refrigeration system, control method and air conditioner | |
| CN115264923B (en) | Multi-split control method and multi-split system | |
| CN218884341U (en) | Air conditioning system | |
| CN113899037B (en) | Heat recovery system and control method thereof | |
| CN211601244U (en) | Refrigerant state control system applied to LNG cold energy utilization of fishing boat | |
| CN117440670B (en) | External cooling system and control method thereof | |
| CN109269134B (en) | Heat exchange system control method | |
| CN218469215U (en) | Intelligent energy-saving automatic control device for energy consumption management and control of refrigerating room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220218 |