CN107084579A - A kind of cooling water system constructional device used under low circumstance temperature operating mode - Google Patents
A kind of cooling water system constructional device used under low circumstance temperature operating mode Download PDFInfo
- Publication number
- CN107084579A CN107084579A CN201710257829.3A CN201710257829A CN107084579A CN 107084579 A CN107084579 A CN 107084579A CN 201710257829 A CN201710257829 A CN 201710257829A CN 107084579 A CN107084579 A CN 107084579A
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- Prior art keywords
- cooling
- valve
- inlet pipeline
- pipeline
- outlet
- 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.)
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- 239000000498 cooling water Substances 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 103
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 18
- 230000014509 gene expression Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
Abstract
The invention discloses a kind of cooling water system constructional device used under low circumstance temperature operating mode, including：Cool down unit, inlet pipeline, outlet pipeline, connecting line, cooling tower and cooling filler.The outlet pipeline is provided with branch node close to one end that the cooling tower is connected, by the branch node, it is divided into the first outlet conduit and the second outlet conduit, first outlet conduit connects the cooling filler, and second outlet conduit is directly connected to inside the cooling tower.First outlet conduit or the second outlet conduit water outlet can be selected according to the difference of environment temperature.The present invention can reach cooling water temperature and draw high faster, and the electrical heating working time can be reduced, and preferably save energy, energy-saving and emission-reduction.
Description
Technical field
The present invention relates to Refrigeration ＆ Air-Conditioning equipment technical field, used in particular to one kind under low circumstance temperature operating mode
Cooling water system constructional device.
Background technology
Different party in request, for specific demand, year-round water cooled type unit and evaporation cooling types such as production and techniques
The application of unit is more and more extensive, and unit cooling water is out carried out by cooling tower water tank by the accessories such as water pump to train condenser
Heat exchange, returns to cooling tower afterwards, and bottom water tank is returned to after filler heat exchange reduction temperature by cooling tower top is unrestrained.Work as product
In the winter time in use, opening after anti-freezing pattern, when unit is in antifreeze and auxiliary heating mode, meeting when cooling water enters cooling tower
Cause substantial amounts of thermal loss, wasted heat.
The content of the invention
It is an object of the invention to provide a kind of cooling water system constructional device used under low circumstance temperature operating mode, to solve
Or improve substantial amounts of thermal loss can be caused when the cooling water proposed in above-mentioned background technology enters cooling tower, wasted heat is asked
Topic.
To achieve the above object, the present invention provides following technical scheme：This cooling water used under low circumstance temperature operating mode
System architecture device, including：Unit, inlet pipeline, outlet pipeline, connecting line, cooling tower and cooling filler are cooled down, it is described cold
But one end of unit and inlet pipeline connection, the other end of the cooling unit and outlet pipeline connection, the company
The two ends on adapter road are connected with the inlet pipeline, the outlet pipeline respectively, and the inlet pipeline is away from the cooling unit
One end be connected to inside the cooling tower, the outlet pipeline away from it is described cooling unit one end be connected to the cooling tower
Inside, cooling filler is set and the top inside cooling tower；The outlet pipeline is set close to one end that the cooling tower is connected
There is branch node, by the branch node, be divided into the first outlet conduit and the second outlet conduit, first outlet conduit connects
The cooling filler is connect, second outlet conduit is directly connected to inside the cooling tower；It is provided with the inlet pipeline
Pipe heating device is provided between water pump, the water pump and the cooling unit on the inlet pipeline.
Preferably, it is provided with three-way electric regulating valve at the branch node.
Preferably, it is provided with electric butterfly valve on first outlet conduit and second outlet conduit.
Preferably, in addition to：First temperature sensor, first temperature sensor is arranged on inside the inlet pipeline
Close to the end of the cooling unit.
Preferably, in addition to：Second temperature sensor, the second temperature sensor is arranged on inside the outlet pipeline
Close to the end of the cooling unit.
Preferably, in addition to：Three-temperature sensor, the three-temperature sensor is arranged at away from the cooling unit
Natural environment in.
Preferably, in addition to：Pressure sensor, the pressure sensor is arranged inside the cooling unit.
Preferably, in addition to：First butterfly valve, the second butterfly valve, the 3rd butterfly valve；First butterfly valve is set and the cooler
On inlet pipeline between group and the connecting pipe, second butterfly valve is arranged on the cooling unit and the connecting pipe
Between outlet pipeline on, the 3rd butterfly valve is arranged on the connecting pipe.
Preferably, in addition to：Pressure gauge, thermometer, automatic blow off valve valve air relief, non-return valve, draining valve, y-type filter, current are opened
Close, proportion expression by-passing valve and ball valve；The pressure gauge is arranged on tie point and the institute of the connecting pipe and the inlet pipeline
State on the inlet pipeline between pipe heating device, the thermometer is arranged on the pressure gauge and pipeline heating dress
On the inlet pipeline between putting, the automatic blow off valve valve air relief is arranged between the thermometer and the pipe heating device
On the inlet pipeline, the non-return valve is arranged on the inlet pipeline between the water pump and the pipe heating device
On, the draining valve is arranged on the inlet pipeline between the water pump and the cooling tower, and the y-type filter is set
On the inlet pipeline between the draining valve and the cooling tower, the water flow switch be arranged on the connecting pipe and
On the outlet pipeline between the tie point of the outlet pipeline and the branch node, the proportion expression by-passing valve is arranged on
At the tie point of the connecting pipe and the inlet pipeline, the ball valve is arranged on second outlet conduit.
Preferably, in addition to it is shockproof it is soft connect, the outlet pipeline and the cooling unit by it is described it is shockproof it is soft connect in succession,
The inlet pipeline and the cooling unit shockproof soft are connect in succession by described.
The present invention compared with prior art, has the advantages that：
Heretofore described outlet pipeline is provided with branch node close to one end that the cooling tower is connected, by described point
Zhi Jiedian, is divided into the first outlet conduit and the second outlet conduit, and first outlet conduit connects the cooling filler, and described the
Two outlet conduits are directly connected to inside the cooling tower, can select the first outlet conduit or second according to the difference of environment temperature
Outlet conduit water outlet, such as when environment temperature is too low, pipe heating device is opened and worked, and is coordinating to go out from second
Waterpipe water outlet, does not pass through the first outlet conduit.It can reach cooling water temperature to draw high faster, the electrical heating working time can subtract
It is few, preferably save energy, energy-saving and emission-reduction.
Brief description of the drawings
In order to more clearly illustrate the technical scheme in the embodiment of the present invention, below by using required in embodiment
Accompanying drawing is simply introduced, it should be apparent that, drawings in the following description are only some embodiments described in the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
The knot for the cooling water system constructional device used under low circumstance temperature operating mode that Fig. 1 provides for first embodiment of the invention
Structure schematic diagram.
The knot for the cooling water system constructional device used under low circumstance temperature operating mode that Fig. 2 provides for second embodiment of the invention
Structure schematic diagram.
Icon：100- low-temperature resistance cooling water systems A；200- low-temperature resistance cooling water systems B；30- cools down unit；40- is cooled down
Tower；41- cools down filler；1- is shockproof soft to be connect；The butterfly valves of 2- first；The butterfly valves of 11- second；The butterfly valves of 12- the 3rd；3- pressure gauges；4- temperature
Meter；5- automatics blow off valve valve air relief；6- non-return valves；7- water pumps；8- draining valves；9-Y type filters；10- water flow switches；By 13- proportion expressions
Port valve；14- ball valves；15- electric butterfly valves；25- three-way electric regulating valves；16- pipe heating devices.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one
Referring to Fig. 1, a kind of low-temperature resistance cooling water system A100 provided in the present embodiment, including：Cool down unit 30, enter
Water lines, outlet pipeline, connecting line, cooling tower 40, cooling filler 41, the first temperature sensor, second temperature sensor, the
Three-temperature sensor, pressure sensor, the first butterfly valve 2, the second butterfly valve 11, the 3rd butterfly valve 12, pressure gauge 3, thermometer 4, automatically
Vent valve 5, non-return valve 6, draining valve 8, y-type filter 9, water flow switch 10, proportion expression by-passing valve 13 and ball valve 14.
It is described cooling unit 30 one end and the inlet pipeline connection, it is described cooling unit 30 the other end and it is described go out
Water lines are connected, and the two ends of the connecting line are connected with the inlet pipeline, the outlet pipeline respectively, the inlet pipeline
One end away from the cooling unit 30 is connected to inside the cooling tower 40, and the outlet pipeline is away from the cooling unit 30
One end be connected to inside the cooling tower 40, cooling filler 41 set with cooling tower 40 inside top；The outlet pipeline
Close to the cooling tower 40 connect one end be provided with branch node, by the branch node, be divided into the first outlet conduit and
Second outlet conduit, the first outlet conduit connection cooling filler 41, second outlet conduit is directly connected to institute
State inside cooling tower 40；Water pump 7 is provided with the inlet pipeline, the water pump 7 on the inlet pipeline with it is described cold
But it is provided with pipe heating device 16 between unit 30.
Preferably, the cooling unit 30 can be water-cooling type or evaporation cooling type unit.
Preferably, electric butterfly valve 15 is provided with first outlet conduit and second outlet conduit, works as needs
When reducing the thermal loss of cooling water, the electric butterfly valve 15 that can be closed on the first outlet conduit is opened on the second outlet conduit
Electric butterfly valve 15.
Preferably, first temperature sensor is arranged on inside the inlet pipeline close to the end of the cooling unit 30
Portion, the inflow temperature for monitoring cooling unit 30.The second temperature sensor is arranged on close inside the outlet pipeline
The end of the cooling unit 30, the leaving water temperature for monitoring cooling unit 30.The three-temperature sensor is arranged at far
In natural environment from the cooling unit 30.
Preferably, the pressure sensor is arranged inside the cooling unit 30, for monitoring inside cooling unit 30
Condensing pressure.
Preferably, first butterfly valve 2 sets the inlet pipeline between the cooling unit 30 and the connecting pipe
On, second butterfly valve 11 is arranged on the outlet pipeline between the cooling unit 30 and the connecting pipe, and the described 3rd
Butterfly valve 12 is arranged on the connecting pipe.
In addition, the pressure gauge 3 is arranged on the connecting pipe and the tie point of the inlet pipeline adds with the pipeline
On the inlet pipeline between thermal 16, the thermometer 4 is arranged on the pressure gauge 3 and the pipe heating device 16
Between the inlet pipeline on, the automatic blow off valve valve air relief 5 is arranged between the thermometer 4 and the pipe heating device 16
The inlet pipeline on, the non-return valve 6 is arranged on the water inlet between the water pump 7 and the pipe heating device 16
On pipeline, the draining valve 8 is arranged on the inlet pipeline between the water pump 7 and the cooling tower 40, the Y types mistake
Filter 9 is arranged on the inlet pipeline between the draining valve 8 and the cooling tower 40, and the water flow switch 10 is arranged on
On the outlet pipeline between the connecting pipe and the tie point and the branch node of the outlet pipeline, the ratio
Formula by-passing valve 13 is arranged at the tie point of the connecting pipe and the inlet pipeline, and the ball valve 14 is arranged on described second
On outlet conduit.
Preferably, in addition to it is shockproof it is soft connect 1, the outlet pipeline and the cooling unit 30 shockproof soft connect 1 by described
Connection, the inlet pipeline and the cooling unit 30 shockproof soft connect 1 connection by described.
Embodiment two
Fig. 2 is refer to, it is cold from a kind of low-temperature resistance unlike embodiment one, provided in the present embodiment in the present embodiment
But it is provided with three-way electric regulating valve 25 at the water system B200 branch node.Three-way electric regulating valve 25 connects three pipes
Road, by controlling a three-way electric regulating valve 25 just to reach the effect of two electric butterfly valves 15, to select outlet conduit.
The present invention operation principle be：When the low-temperature resistance cooling water system is in hesitation state, when turnover coolant-temperature gage
And environment temperature is dropped to a certain degree, the low-temperature resistance cooling water system enters anti-freezing pattern, opens water pump 7 and pipe heating device
16, the water inlet end cooling water of cooling tower 40 is all directly returned near the water outlet of water tank of cooling tower 40 by the second outlet conduit, is kept away
Exempt from cooling water by the thermal loss for cooling down filler 41 and occurring, the local water temperature of the delivery port of cooling tower 40 can be drawn high as early as possible, is prevented
Condenser and cooling water pipeline, which freeze, to be damaged, it is ensured that unit is in the winter time or the safety excessively under season low circumstance temperature operating mode.
When the low-temperature resistance cooling water system is in open state, when environment temperature is dropped to a certain degree, cooling tower 40 is cooled down
The low-temperature resistance cooling water system condensing pressure (temperature) caused by effect promoting is reduced, and when it is dropped to a certain degree, system is entered
Enter and aid in heating mode, pipe heating device 16 is opened, now system control program is according to condensing pressure (temperature), cooling unit
The condition criterions, the cooling of the water inlet end of cooling tower 40 such as 30 turnover coolant-temperature gages, the aperture of 30 water inlet end proportion expression by-passing valve of cooling unit 13
Water is by filler to return to water tank by the top aproll of cooling tower 40, or directly returns to the water of cooling tower 40 by bypass circulation
Case, draws high cooler-water temperature, it is to avoid cool down the condensing pressure of unit 30 (temperature) mistake caused by the cooling effect of cooling tower 40 is too strong
It is low, it is ensured that unit is in the winter time or the safe and stable operation excessively under season low circumstance temperature operating mode.In summary, what the present invention was provided is anti-
Sub-cooled water system, is avoided that by the filler of cooling tower 40 thermal loss occurs for cooling water, water temperature is drawn high faster to target
Value, reduces electrically heated use time, reduces energy consumption, energy-saving and emission-reduction.When system is in auxiliary electrical heater pattern, it is avoided that cold
But water passes through the thermal loss that the filler of cooling tower 40 occurs, and water temperature is drawn high faster to desired value, draws high Crew Cooling System high
Pressure so that unit enters stable operation faster.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with scope, on the premise of design concept of the present invention is not departed from, ordinary skill technical staff is to this hair in this area
The all variations and modifications that bright technical scheme is made all should fall into protection scope of the present invention, claimed skill of the invention
Art content, is all documented in technical requirements book.
Claims (10)
1. a kind of cooling water system constructional device used under low circumstance temperature operating mode, it is characterised in that including：Cool down unit
(30), inlet pipeline, outlet pipeline, connecting line, cooling tower (40) and cooling filler (41), the one of the cooling unit (30)
End and inlet pipeline connection, the other end of the cooling unit (30) and outlet pipeline connection, the connecting line
Two ends respectively connected with the inlet pipeline, the outlet pipeline, the inlet pipeline is away from the cooling unit (30)
One end is connected to the cooling tower (40) inside, and the one end of the outlet pipeline away from the cooling unit (30) is connected to described
Cooling tower (40) is internal, and cooling filler (41) sets the top internal with cooling tower (40)；The outlet pipeline is close to described cold
But one end of tower (40) connection is provided with branch node, by the branch node, is divided into the first outlet conduit and the second water outlet
Pipeline, first outlet conduit connects the cooling filler, and second outlet conduit is directly connected to the cooling tower
(40) it is internal；Water pump (7) is provided with the inlet pipeline, the water pump (7) on the inlet pipeline and the cooling
Pipe heating device (16) is provided between unit (30).
2. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that institute
State and three-way electric regulating valve (25) is provided with branch node.
3. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that institute
State and be provided with electric butterfly valve (15) on the first outlet conduit and second outlet conduit.
4. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：First temperature sensor, first temperature sensor is arranged on inside the inlet pipeline close to the cooling unit
(30) end.
5. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：Second temperature sensor, the second temperature sensor is arranged on inside the outlet pipeline close to the cooling unit
(30) end.
6. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：Three-temperature sensor, the three-temperature sensor is arranged in the natural environment away from the cooling unit.
7. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：Pressure sensor, the pressure sensor is arranged inside the cooling unit.
8. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：First butterfly valve (2), the second butterfly valve (11), the 3rd butterfly valve (12)；First butterfly valve (2) is set and the cooling unit
(30) on the inlet pipeline between the connecting pipe, second butterfly valve (11) is arranged on the cooling unit (30) and institute
State on the outlet pipeline between connecting pipe, the 3rd butterfly valve (12) is arranged on the connecting pipe.
9. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that also
Including：Pressure gauge (3), thermometer (4), automatic blow off valve valve air relief (5), non-return valve (6), draining valve (8), y-type filter (9), current
Switch (10), proportion expression by-passing valve (13) and ball valve (14)；The pressure gauge (3) is arranged on the connecting pipe and the water inlet
On the inlet pipeline between the tie point of pipeline and the pipe heating device (16), the thermometer (4) is arranged on institute
State on the inlet pipeline between pressure gauge (3) and the pipe heating device (16), the automatic blow off valve valve air relief (5) is arranged on
On the inlet pipeline between the thermometer (4) and the pipe heating device (16), the non-return valve (6) is arranged on institute
State on the inlet pipeline between water pump (7) and the pipe heating device (16), the draining valve (8) is arranged on the water
On the inlet pipeline between pump (7) and the cooling tower (40), the y-type filter (9) is arranged on the draining valve (8)
On the inlet pipeline between the cooling tower (40), the water flow switch (10) is arranged on the connecting pipe and described
On the outlet pipeline between the tie point of outlet pipeline and the branch node, the proportion expression by-passing valve (13) is arranged on
At the tie point of the connecting pipe and the inlet pipeline, the ball valve (14) is arranged on second outlet conduit.
10. the cooling water system constructional device according to claim 1 used under low circumstance temperature operating mode, it is characterised in that
Also include it is shockproof it is soft connect (1), the outlet pipeline and the cooling unit (30) are connected by described shockproof soft connect (1), described
Inlet pipeline and the cooling unit (30) are connected by described shockproof soft connect (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257829.3A CN107084579A (en) | 2017-04-19 | 2017-04-19 | A kind of cooling water system constructional device used under low circumstance temperature operating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257829.3A CN107084579A (en) | 2017-04-19 | 2017-04-19 | A kind of cooling water system constructional device used under low circumstance temperature operating mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107084579A true CN107084579A (en) | 2017-08-22 |
Family
ID=59612035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710257829.3A Pending CN107084579A (en) | 2017-04-19 | 2017-04-19 | A kind of cooling water system constructional device used under low circumstance temperature operating mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084579A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860252A (en) * | 2017-09-28 | 2018-03-30 | 上海柯垓冷却技术有限公司 | Heat-exchange system and heat exchange control |
| 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 |
| CN113865004A (en) * | 2021-09-30 | 2021-12-31 | 珠海格力电器股份有限公司 | Cooling water anti-freezing control method, cooling water anti-freezing system and air conditioning system |
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| US20040123982A1 (en) * | 2002-12-31 | 2004-07-01 | Industrial Technology Research Institute | Constant temperature refrigeration system for extensive temperature range application and control method thereof |
| CN201789409U (en) * | 2010-08-02 | 2011-04-06 | 麦克维尔空调制冷(武汉)有限公司 | Frequency converter chilled water cooling device |
| CN104791925A (en) * | 2015-03-27 | 2015-07-22 | 仪征祥源动力供应有限公司 | Energy-saving type open cold supply system for cooling tower |
| CN205352721U (en) * | 2015-12-08 | 2016-06-29 | 四川省建筑科学研究院 | Heat pump set comprehensive properties testing system |
| CN106500204A (en) * | 2016-12-28 | 2017-03-15 | 重庆通用贝园制冷空调设备有限责任公司 | A kind of air conditioning system |
| CN206890973U (en) * | 2017-04-19 | 2018-01-16 | 浙江思科制冷股份有限公司 | The cooling water system constructional device used under low circumstance temperature operating mode |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040123982A1 (en) * | 2002-12-31 | 2004-07-01 | Industrial Technology Research Institute | Constant temperature refrigeration system for extensive temperature range application and control method thereof |
| CN201789409U (en) * | 2010-08-02 | 2011-04-06 | 麦克维尔空调制冷(武汉)有限公司 | Frequency converter chilled water cooling device |
| CN104791925A (en) * | 2015-03-27 | 2015-07-22 | 仪征祥源动力供应有限公司 | Energy-saving type open cold supply system for cooling tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860252A (en) * | 2017-09-28 | 2018-03-30 | 上海柯垓冷却技术有限公司 | Heat-exchange system and heat exchange control |
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| 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 |
| CN113865004A (en) * | 2021-09-30 | 2021-12-31 | 珠海格力电器股份有限公司 | Cooling water anti-freezing control method, cooling water anti-freezing system and air conditioning system |
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Application publication date: 20170822 |