CN107014019A - A kind of air-cooled single cooler group under low temperature environment - Google Patents
A kind of air-cooled single cooler group under low temperature environment Download PDFInfo
- Publication number
- CN107014019A CN107014019A CN201710380844.7A CN201710380844A CN107014019A CN 107014019 A CN107014019 A CN 107014019A CN 201710380844 A CN201710380844 A CN 201710380844A CN 107014019 A CN107014019 A CN 107014019A
- Authority
- CN
- China
- Prior art keywords
- valve
- air
- magnetic valve
- low temperature
- coil pipe
- 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
- 230000008676 import Effects 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses the air-cooled single cooler group under a kind of low temperature environment, including compressor, condenser, expansion valve, evaporator, pressure sensor and controller.The coil pipe of condenser is made up of two-stage structure and heat exchange area identical coil pipe；Upstream of the exhaust side of compressor respectively by the first magnetic valve and the first ball valve correspondingly with two sections of coil pipes is connected, and the first check valve is connected between the downstream of two sections of coil pipes；The downstream of one section of coil pipe of correspondence the first magnetic valve of connection also passes sequentially through the second magnetic valve and the second check valve connects the import of evaporator；The downstream of another section of coil pipe of correspondence the first ball valve of connection also passes sequentially through the import that the second ball valve, the 3rd magnetic valve and the expansion valve connect evaporator；The outlet of evaporator and the suction side of compressor are connected.Air-cooled single cooler group under the low temperature environment of the present invention, makes the minimum environment temperature of application reach 15 DEG C~20 DEG C.
Description
Technical field
The present invention relates to the air-cooled single cooler group under a kind of low temperature environment.
Background technology
Conventional air-cooled single cooler group is by compressor 1, wind side condenser 2, expansion valve 3, water side evaporator 4 and compressor
1 forms refrigeration loop (see Fig. 1).The refrigerant high-temperature gas that compressor 1 is discharged is condensed into liquid in wind side condenser 2, passes through
The reducing pressure by regulating flow of throttling arrangement, enters water inlet side evaporator 3, absorbs and compressor 1 is returned to after heat of vaporization, completes a refrigeration and follows
Ring.The use environment temperature requirement of conventional air-cooled single cooler group is more than 15 DEG C.
For air-cooled single cooler group, increasing demand is to run cooling condition in transition season and winter.
Because environment temperature is relatively low (- 15 DEG C~-20 DEG C), the on high-tension side high pressure of unit very stable can not be set up, or even nothing
Method is set up.Even if by the control to blower fan, such as：Control the operation quantity of blower fan or control the rotating speed of blower fan to tie up
Hold certain high pressure, but some situations, even if closing the blower fan of all condensers, unit high pressure is still difficult to maintain,
Make high pressure relatively low.When high pressure is relatively low, the front and rear pressure difference of expansion valve will very little so that the more difficult normal work of expansion valve, causes
Often there is low pressure alarm in unit, and it is difficult normal operation to make unit.
The content of the invention
The air-cooled single cooler group under a kind of low temperature environment is provided it is an object of the invention to overcome the defect of prior art,
It makes the minimum environment temperature of application reach -15 DEG C~-20 DEG C, and the application of the environment temperature of air-cooled single cooler group is expanded significantly
Scope, and stable and reliable operation.
Realizing a kind of technical scheme of the object of the invention is：A kind of air-cooled single cooler group under low temperature environment, including compressor,
Wind side condenser, expansion valve, water side evaporator, pressure sensor and controller, wherein,
The wind side condenser is made up of two-stage structure and heat exchange area identical coil pipe, and the side of two sections of coil pipes is each
Some Fans are accordingly installed；
The exhaust side of the compressor by the first magnetic valve and the first ball valve correspondingly with two sections of coil pipes
Upstream is connected, and the first check valve is connected between the downstream of two sections of coil pipes；Under one section of coil pipe of correspondence the first magnetic valve of connection
Trip also passes sequentially through the second magnetic valve and the second check valve and is connected with the import of water side evaporator；Correspondence the first ball valve of connection
Another section of coil pipe downstream also pass sequentially through the second ball valve, the 3rd magnetic valve and the expansion valve connection water side evaporator
Import；The outlet of water side evaporator is connected with the suction side of the compressor；
The pressure sensor is arranged between the downstream of the exhaust side of the compressor and wind side condenser and will measurement
Condensing pressure signal pass to the controller；
First magnetic valve to the 3rd magnetic valve, the first ball valve and all blower fans connects with the controller signals
Connect.
Air-cooled single cooler group under above-mentioned low temperature environment, wherein, two sections of coil pipes are two sections of respective independent coil pipes
Or it is divided into two and half sections of coil pipes for one whole section of coil pipe.
Air-cooled single cooler group under above-mentioned low temperature environment, wherein, also connect between second ball valve and the 3rd magnetic valve
Connect a device for drying and filtering.
Air-cooled single cooler group under above-mentioned low temperature environment, wherein, the refrigerant used in the air-cooled unit is liquified hydrogen
CFC or HFC.
Realizing another technical scheme of the object of the invention is：A kind of operation side of air-cooled single cooler group under low temperature environment
Method, is implemented in the air-cooled single cooler group under the low temperature environment of the invention described above, and the operation method comprises the following steps：
When condensing pressure is setup pressure value, wind side condenser gross area is set to exchange heat, now controller provides signal and beaten
The first magnetic valve and the first ball valve are driven, two sections of coil pipes of wind side condenser is run, while opening the first check valve, the second ball
Valve and the 3rd magnetic valve simultaneously close the second magnetic valve；
When environment temperature declines, condensing pressure is decreased, and wind side condenser gross area is exchanged heat, now controller is provided
Signal, reduces the quantity for opening blower fan or reduces the rotating speed of blower fan to lift condensing pressure, until stopping all blower fans；
When environment temperature continuous decrease is to -15 DEG C~-20 DEG C, when condensing pressure is less than setting value, make wind side condenser
Heat exchange area reduces half, and now controller provides the magnetic valve of signal-off first, one section of connection corresponding with the first magnetic valve
Coil pipe stops heat exchange, and condensing pressure rises and stabilized at once, while controller, which provides signal, opens the second magnetic valve and the second list
To valve, the coil pipe that stopping exchanges heat is set to discharge refrigerant therein, to avoid because lack of refrigerant causes unit to be not normally functioning
Phenomenon；
When environment temperature rises at low temperature, and when the condensing pressure is risen to setting value, make wind side condenser comprehensive
Product exchanges heat, and now controller provides signal and opens the first magnetic valve, two sections of coil pipes of condenser is resumed operation, stable condensation pressure
Power.
The operation method of air-cooled single cooler group under above-mentioned low temperature environment, wherein, in the heat exchange of wind side condenser gross area
When, the capacity for the coil pipe for entering connection corresponding with the first ball valve is adjusted by the first ball valve, so that the air inflow of two sections of coil pipes
It is equal.
The operation method of air-cooled single cooler group under above-mentioned low temperature environment, wherein, in the heat exchange area of wind side condenser
When reducing half, the first check valve is also closed, to prevent the refrigerant reflux of target phase coil pipe discharge into stop segment coil pipe.
Air-cooled single cooler group under the low temperature environment of the present invention has the characteristics that：Using two-stage structure and heat exchange area phase
Same coil pipe constitutes air-cooled condenser, by the coil pipe Discrete control to air-cooled condenser, reaches the minimum environment temperature of application
To -15 DEG C~-20 DEG C, the most low application temperature (15 DEG C) of relatively conventional air-cooled single cooler group expands air-cooled Dan Leng significantly
The application of the minimum environment temperature of unit, and stable and reliable operation.
Brief description of the drawings
Fig. 1 is the structural representation of the air-cooled single cooler group of prior art；
Fig. 2 be the present invention low temperature environment under air-cooled single cooler group structural representation.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Referring to Fig. 2, the air-cooled single cooler group under the low temperature environment of the present invention, including it is compressor 1, wind side condenser 2, swollen
Swollen valve 3, water side evaporator 4, pressure sensor 13 and controller (not shown), wherein：
The coil pipe of wind side condenser 2 is made up of two-stage structure and heat exchange area identical coil pipe 21,22, two sections of coil pipes
21st, 22 side each corresponds to and installs some Fans 20；Two sections of coil pipes 21,22 are two sections of respective independent coil pipes or are one
Whole section of coil pipe is divided into two and half sections of coil pipes；Condenser coil in the present embodiment is two sections of respective independent coil pipes 21,22；
The exhaust side of compressor 1 respectively by the first magnetic valve 5 and the first ball valve 6 correspondingly with two sections of coil pipes 21,
The first check valve 7 is connected between 22 upstream connection, the downstream of two sections of coil pipes 21,22；The one of correspondence the first magnetic valve 5 of connection
The downstream of section coil pipe 21 also passes sequentially through the import of the second magnetic valve 8 and the second check valve 9 connection water side evaporator 4；Correspondence connects
The downstream for connecing another section of coil pipe 22 of the first ball valve 6 also passes sequentially through the second ball valve 10, the 3rd magnetic valve 12 and expansion valve 3 and connected
The import of water side evaporator 4；A device for drying and filtering 11 is also connected between second ball valve 10 and the 3rd magnetic valve 12；Evaporate water side
The outlet of device 4 is connected with the suction side of compressor 1；
Pressure sensor 13 is arranged between the downstream of the exhaust side of compressor 1 and wind side condenser 2 and by the cold of measurement
Solidifying pressure signal transmission is to controller；
First magnetic valve 5, the second magnetic valve 8, the 3rd magnetic valve 12, the first ball valve 6 and all blower fans 20 with control
Device signal connection processed.
The refrigerant used in air-cooled single cooler group under the low temperature environment of the present invention is liquid HCFC or HFC, tool
Body includes R134a, R22, R407C, R410A, R32.
The operation method of air-cooled single cooler group under the low temperature environment of the present invention, is implemented in the low temperature environment of the invention described above
Under air-cooled single cooler group and comprise the following steps：
When condensing pressure is setup pressure value, the gross area of wind side condenser 2 is set to exchange heat, now controller provides signal and beaten
The first magnetic valve 5 and the first ball valve 6 are driven, two sections of coil pipes 21,22 of wind side condenser 2 is run, while it is unidirectional to open first
Valve 7, the second ball valve 10 and the 3rd magnetic valve 12 simultaneously close the second magnetic valve 8；The refrigerant discharged from one section of coil pipe 21 passes through the
One check valve 7 and the refrigerant discharged from other end coil pipe 22 pass sequentially through the second ball valve 10, filter the 11, the 3rd again after merging
Magnetic valve 12 and expansion valve 3 enter evaporator 4；The coil pipe 22 entered with the corresponding connection of the first ball valve 6 is adjusted by the first ball valve 6
Capacity so that the air inflow of two sections of coil pipes 21,22 is equal；
When environment temperature declines, condensing pressure is decreased, and the gross area of wind side condenser 2 is exchanged heat, now controller is given
Go out signal, reduce the quantity for opening blower fan 20 or reduce the rotating speed of blower fan 20 to lift condensing pressure, until stopping all wind
Machine 20；
When environment temperature continuous decrease is to -15 DEG C~-20 DEG C, when condensing pressure is less than setting value, make wind side condenser 2
Heat exchange area reduces half, and now controller provides the first magnetic valve of signal-off 5, and one with the corresponding connection of the first magnetic valve 5
Section coil pipe 21 stops heat exchange, only runs another section of coil pipe 22, condensing pressure rises and stabilized at once, while controller provides letter
Number the second magnetic valve 8 and the second check valve 9 are opened, the coil pipe 21 that stopping exchanges heat is discharged refrigerant therein, to avoid because of system
Cryogen deficiency causes the phenomenon that unit is not normally functioning；The first check valve 7 is also closed, to prevent target phase coil pipe 22 from discharging
Refrigerant reflux into stop segment coil pipe 21.
When environment temperature rises at low temperature, and when the condensing pressure is risen to setting value, make wind side condenser 2 comprehensive
Product exchanges heat, and now controller provides signal and opens the first magnetic valve 5, two sections of coil pipes 21,22 of wind side condenser 2 is recovered fortune
OK, stable condensing pressure.
Air-cooled single cooler group under the low temperature environment of the present invention, can be applied with stable operation at relatively low ambient temperatures
Minimum environment temperature can reach -15 DEG C~-20 DEG C, the most low application temperature (15 of relatively conventional air-cooled single cooler group
DEG C), the scope of application environment temperature is expanded significantly.
Above example is used for illustrative purposes only, rather than limitation of the present invention, about the technology people of technical field
Member, without departing from the spirit and scope of the present invention, can also make various conversion or modification, therefore all equivalent
Technical scheme should also belong to scope of the invention, should be limited by each claim.
Claims (7)
1. the air-cooled single cooler group under a kind of low temperature environment, including compressor, wind side condenser, expansion valve, water side evaporator, pressure
Force snesor and controller, it is characterised in that
The wind side condenser is made up of two-stage structure and heat exchange area identical coil pipe, and the side of two sections of coil pipes is each corresponded to
Ground is installed by some Fans；
Upstream of the exhaust side of the compressor by the first magnetic valve and the first ball valve correspondingly with two sections of coil pipes
The first check valve is connected between connection, the downstream of two sections of coil pipes；The downstream of one section of coil pipe of correspondence the first magnetic valve of connection is also
The import that the second magnetic valve and the second check valve are passed sequentially through with water side evaporator is connected；Correspondence connects the another of the first ball valve
The downstream of one section of coil pipe also passes sequentially through entering for the second ball valve, the 3rd magnetic valve and expansion valve connection water side evaporator
Mouthful；The outlet of water side evaporator is connected with the suction side of the compressor；
The pressure sensor is arranged between the downstream of the exhaust side of the compressor and wind side condenser and by the cold of measurement
Solidifying pressure signal transmission gives the controller；
First magnetic valve to the 3rd magnetic valve, the first ball valve and all blower fans is connected with the controller signals.
2. the air-cooled single cooler group under low temperature environment according to claim 1, it is characterised in that two sections of coil pipes are two
The respective independent coil pipe of section is divided into two and half sections of coil pipes for one whole section of coil pipe.
3. the air-cooled single cooler group under low temperature environment according to claim 1, it is characterised in that second ball valve and
A device for drying and filtering is also connected between three magnetic valves.
4. the air-cooled single cooler group under low temperature environment according to claim 1, it is characterised in that used in the air-cooled unit
Refrigerant be liquid HCFC or HFC.
5. a kind of operation method of the air-cooled single cooler group under low temperature environment, is implemented in the low temperature ring described in the claims 1
Air-cooled single cooler group under border, it is characterised in that the operation method comprises the following steps：
When condensing pressure is setup pressure value, wind side condenser gross area is set to exchange heat, now controller provides signal and opens the
One magnetic valve and the first ball valve, make two sections of coil pipes of wind side condenser run, at the same open the first check valve, the second ball valve and
3rd magnetic valve simultaneously closes the second magnetic valve；
When environment temperature declines, condensing pressure is decreased, and wind side condenser gross area is exchanged heat, now controller provides letter
Number, reduce the quantity for opening blower fan or reduce the rotating speed of blower fan to lift condensing pressure, until stopping all blower fans；
When environment temperature continuous decrease is to -15 DEG C~-20 DEG C, when condensing pressure is less than setting value, make the heat exchange of wind side condenser
Area reduces half, and now controller provides the magnetic valve of signal-off first, one section of coil pipe of connection corresponding with the first magnetic valve
Stop heat exchange, condensing pressure rises and stabilized at once, while controller, which provides signal, opens the second magnetic valve and the second check valve,
The coil pipe for making stopping exchange heat discharges refrigerant therein, to avoid because lack of refrigerant causes what unit was not normally functioning to show
As；
When environment temperature rises at low temperature, and when the condensing pressure is risen to setting value, change wind side condenser gross area
Heat, now controller provide signal and open the first magnetic valve, two sections of coil pipes of condenser is resumed operation, stable condensing pressure.
6. the operation method of the air-cooled single cooler group under low temperature environment according to claim 5, it is characterised in that in wind side
When condenser gross area exchanges heat, the capacity for the coil pipe for entering connection corresponding with the first ball valve is adjusted by the first ball valve, so that
The air inflow of two sections of coil pipes is equal.
7. the operation method of the air-cooled single cooler group under low temperature environment according to claim 5, it is characterised in that in wind side
When the heat exchange area of condenser reduces half, the first check valve is also closed, it is anti-with the refrigerant for preventing target phase coil pipe from discharging
Flow in stop segment coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380844.7A CN107014019A (en) | 2017-05-25 | 2017-05-25 | A kind of air-cooled single cooler group under low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710380844.7A CN107014019A (en) | 2017-05-25 | 2017-05-25 | A kind of air-cooled single cooler group under low temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107014019A true CN107014019A (en) | 2017-08-04 |
Family
ID=59451627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710380844.7A Pending CN107014019A (en) | 2017-05-25 | 2017-05-25 | A kind of air-cooled single cooler group under low temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224644A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | All weather refrigeration system and its control method |
| CN112503814A (en) * | 2020-12-07 | 2021-03-16 | 广东申菱环境系统股份有限公司 | Condensing pressure control system and method |
| CN112856844A (en) * | 2021-03-04 | 2021-05-28 | 郑州之铂智能科技有限公司 | Air-cooled water chilling unit for low-ring-temperature refrigeration and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116977A (en) * | 2002-09-30 | 2004-04-15 | Fujitsu General Ltd | Air conditioner |
| WO2012053184A1 (en) * | 2010-10-18 | 2012-04-26 | 株式会社エンテック | Heat exchanging system |
| CN202403438U (en) * | 2011-11-21 | 2012-08-29 | 广州恒星冷冻机械制造有限公司 | Plateau air cooling industrial machine set |
| CN202947267U (en) * | 2012-11-16 | 2013-05-22 | 泰豪科技股份有限公司 | Low temperature type air cooling unit with speed regulated and controlled by condensate fan |
| CN203980566U (en) * | 2014-04-29 | 2014-12-03 | 泰豪科技股份有限公司 | Utilize the sectional-regulated low-temperature air-cooling unit of segmented condenser |
| CN106642471A (en) * | 2016-12-30 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Air cooling type constant-temperature-and-humidity air conditioner |
| CN206755456U (en) * | 2017-05-25 | 2017-12-15 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of air-cooled single cooler group under low temperature environment |
-
2017
- 2017-05-25 CN CN201710380844.7A patent/CN107014019A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004116977A (en) * | 2002-09-30 | 2004-04-15 | Fujitsu General Ltd | Air conditioner |
| WO2012053184A1 (en) * | 2010-10-18 | 2012-04-26 | 株式会社エンテック | Heat exchanging system |
| CN202403438U (en) * | 2011-11-21 | 2012-08-29 | 广州恒星冷冻机械制造有限公司 | Plateau air cooling industrial machine set |
| CN202947267U (en) * | 2012-11-16 | 2013-05-22 | 泰豪科技股份有限公司 | Low temperature type air cooling unit with speed regulated and controlled by condensate fan |
| CN203980566U (en) * | 2014-04-29 | 2014-12-03 | 泰豪科技股份有限公司 | Utilize the sectional-regulated low-temperature air-cooling unit of segmented condenser |
| CN106642471A (en) * | 2016-12-30 | 2017-05-10 | 广东申菱环境系统股份有限公司 | Air cooling type constant-temperature-and-humidity air conditioner |
| CN206755456U (en) * | 2017-05-25 | 2017-12-15 | 克莱门特捷联制冷设备(上海)有限公司 | A kind of air-cooled single cooler group under low temperature environment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224644A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | All weather refrigeration system and its control method |
| CN112503814A (en) * | 2020-12-07 | 2021-03-16 | 广东申菱环境系统股份有限公司 | Condensing pressure control system and method |
| CN112856844A (en) * | 2021-03-04 | 2021-05-28 | 郑州之铂智能科技有限公司 | Air-cooled water chilling unit for low-ring-temperature refrigeration and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020103516A1 (en) | Evaporative cooling chiller unit heat-exchanging system and control method therefor | |
| CN100451485C (en) | Freezing apparatus | |
| CN102207324B (en) | Air conditioner | |
| CN110425112B (en) | Compressor liquid impact prevention air conditioner and compressor liquid impact prevention control method | |
| JP4969608B2 (en) | Air conditioner | |
| CN105627612B (en) | The refrigeration control method of outdoor unit refrigerant pipe-line system, air conditioner and air conditioner | |
| CN102165276A (en) | Flash tank economizer cycle control | |
| KR20120014061A (en) | Heat exchanging system | |
| CN110671782B (en) | Control method and control device of air conditioner and air conditioner | |
| CN107014019A (en) | A kind of air-cooled single cooler group under low temperature environment | |
| CN210425671U (en) | Ultralow-temperature perennial refrigeration type air-cooled air conditioning unit | |
| CN107014096A (en) | A kind of technical cooling under pole low temperature environment is with air-cooled single cooler group | |
| KR20210100461A (en) | Air conditioning apparatus | |
| US7451615B2 (en) | Refrigeration device | |
| WO2006039042A2 (en) | Cooling systems | |
| CN206755456U (en) | A kind of air-cooled single cooler group under low temperature environment | |
| JP7278065B2 (en) | refrigeration cycle equipment | |
| CN105546736A (en) | Method for solving accumulated liquid of indoor heat exchanger of multi-split air conditioner during heating | |
| US11708981B2 (en) | High-pressure re-start control algorithm for microchannel condenser with reheat coil | |
| JP2000292016A (en) | Refrigerating cycle | |
| CN101663546B (en) | Prevention of refrigerant solidification | |
| CN209978429U (en) | Heat pump air conditioning unit capable of controlling temperature of lubricating oil | |
| CN206755641U (en) | A kind of air-cooled single cooler group of technical cooling under pole low temperature environment | |
| JP6404539B2 (en) | Air conditioner | |
| CN102840712A (en) | Refrigeration cycle apparatus and hydronic heater having the refrigeration cycle apparatus |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170804 |