CN107763871A - A kind of large-scale handpiece Water Chilling Units of air cooling superposition type - Google Patents
A kind of large-scale handpiece Water Chilling Units of air cooling superposition type Download PDFInfo
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- CN107763871A CN107763871A CN201711010933.9A CN201711010933A CN107763871A CN 107763871 A CN107763871 A CN 107763871A CN 201711010933 A CN201711010933 A CN 201711010933A CN 107763871 A CN107763871 A CN 107763871A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 239000007792 gaseous phase Substances 0.000 claims abstract description 4
- 238000009835 boiling Methods 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000010349 pulsation Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000004378 air conditioning Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- BOUGCJDAQLKBQH-UHFFFAOYSA-N 1-chloro-1,2,2,2-tetrafluoroethane Chemical compound FC(Cl)C(F)(F)F BOUGCJDAQLKBQH-UHFFFAOYSA-N 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005382 thermal cycling Methods 0.000 description 1
- 239000003643 water by type Substances 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
-
- 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
-
- 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
- F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- 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
-
- 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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The present invention relates to a kind of large-scale handpiece Water Chilling Units of air cooling superposition type, wherein, the outlet of compressor is connected with the entrance of gs-oil separator, the outlet with gs-oil separator, the second port of evaporator, the entrance of gas-liquid separator, the first port of condenser are connected A mouths, B mouths, C mouths and the D mouths of four-way valve respectively, and the entrance for separating reservoir is connected with the second port of condenser and the first port of evaporator respectively；The liquid-phase outlet of separation reservoir is connected by first throttle component with the first entrance of evaporative condenser, is separated the gaseous phase outlet of reservoir and is connected with the second entrance of evaporative condenser；The first outlet of evaporative condenser is connected with the entrance of compressor, and the second outlet of evaporative condenser is connected with the second port of condenser and the first port of evaporator respectively by the second orifice union.The beneficial effects of the invention are as follows：The technique effect saved again with water saving.
Description
Technical field
The invention belongs to refrigeration technology field, and in particular to a kind of large-scale handpiece Water Chilling Units of air cooling superposition type.
Background technology
Current large-scale cooling-water machine unit refers to that cold is more than more than 200kW handpiece Water Chilling Units, mainly has：Screw and from
Three kinds of types of core type, while idle call, several types of cooling and chemical industry can be divided into again.Generally supplied with complete unit, it is cold
But mode is all water cooling, essentially single cold type.The theoretical circulation pattern of use is typically：Inverse Carnot cycle or Lorentz follow
Ring.
For example, the Chinese utility model patent of Application No. 201420821028.7, discloses a kind of R290 wind-cooled cold-waters
Unit, including shell, in the shell provided with compressor, the air-cooled condenser being connected with the compressor outlet and with institute
The evaporator of the entrance point connection of compressor is stated, throttling arrangement, institute are connected between the air-cooled condenser and the evaporator
The top for stating shell is provided with axial flow blower；The compressor, the air-cooled condenser, the throttling arrangement and the evaporator
Refrigerant circulation line in refrigerant be R29 refrigerants；Refrigerant leakage detecting device is provided with the shell；It is described outer
The lower sidewall of shell offers some air vents.
The theoretical circulation pattern that above-mentioned prior art uses typically is against Carnot cycle or Lorentz circulation, existing skill
The defects of art is：Due to being water cooling, condensation temperature is usually no more than 35 DEG C, and Energy Efficiency Ratio is general higher under air conditioning condition, and this is
Since in operating mode, the relatively low result of condensation temperature；If air cooling mode, Energy Efficiency Ratio is equally very low.
The content of the invention
The shortcomings that existing for prior art, it is big that the present invention proposes the air cooling superposition type that a kind of saving water source saves again
Type handpiece Water Chilling Units.
The technical scheme of the present invention that solves the problems, such as is：The large-scale handpiece Water Chilling Units of air cooling superposition type, including compressor, oil gas point
A mouths, B are provided with from device, four-way valve, condenser, evaporator, separation reservoir, evaporative condenser and gas-liquid separator, four-way valve
Mouth, C mouths and D mouths, the outlet of compressor are connected with the entrance of gs-oil separator, the outlet of gs-oil separator and the A mouths of four-way valve
It is connected, the D mouths of four-way valve are connected with the first port of condenser；Separate the entrance second port with condenser respectively of reservoir
It is connected with the first port of evaporator, separates and the first check (non-return) valve is provided between the entrance of reservoir and the second port of condenser,
Separate and be provided with the second check (non-return) valve between the entrance of reservoir and the first port of evaporator；The liquid-phase outlet of separation reservoir passes through
First throttle component is connected with the first entrance of evaporative condenser, separates the gaseous phase outlet and evaporative condenser of reservoir
Second entrance is connected；The first outlet of evaporative condenser is connected with the entrance of compressor, the second outlet of evaporative condenser
Be connected respectively with the second port of condenser and the first port of evaporator by the second orifice union, the second orifice union with it is cold
The 3rd check (non-return) valve is provided between the second port of condenser, is stopped between the second orifice union and the first port of evaporator provided with the 4th
Inverse valve；The second port of evaporator and the B mouths of four-way valve connect, and the C mouths of four-way valve are connected with the entrance of gas-liquid separator, gas-liquid
The outlet of separator is connected with the entrance of compressor；The self-cascade heat pump circulatory system is used by high boiling component R124 (one
Chloro-tetrafluoroethane) and low boiling component R32 (difluoromethane) composition mixed working fluid.
Further, first throttle component includes the first magnetic valve, the first liquid-sighting glass and the first expansion valve being sequentially connected,
The liquid-phase outlet of first magnetic valve connection separation reservoir, the first expansion valve connect the first entrance of evaporative condenser；Height boiling
Point component R124 is using pulsation feed liquid way.
Further, the second orifice union includes second solenoid valve, the second liquid-sighting glass and the second expansion valve being sequentially connected,
Second solenoid valve connects the second outlet of evaporative condenser, and the second expansion valve connects the 3rd check (non-return) valve and the 4th non-return respectively
Valve.
Further, the large-scale handpiece Water Chilling Units of air cooling superposition type be additionally provided with for control switching kind of refrigeration cycle pattern and
The controller of circulation pattern is heated, controller is connected with four-way valve.
Further, when the large-scale handpiece Water Chilling Units operation kind of refrigeration cycle pattern of the air cooling superposition type, four-way valve is obstructed
Electricity, connect between the A mouths and D mouths of four-way valve, connected between B mouths and C mouths；Run and heat when the self-cascade heat pump circulatory system
During circulation pattern, four-way valve is powered, and connects between the A mouths and B mouths of four-way valve, is connected between C mouths and D mouths.
The beneficial effect of the large-scale handpiece Water Chilling Units of air cooling superposition type of the present invention is：
(1) cooling in summer air-conditioning：Using the large-scale handpiece Water Chilling Units of air cooling superposition type of the present invention COP values with it is big at present
Type handpiece Water Chilling Units are suitable；
(2) winter heating：Current handpiece Water Chilling Units are mostly single cooler type, and winter can not heat, using sky of the present invention
The large-scale handpiece Water Chilling Units of coldization superposition type are then pump type heat, can realize refrigeration and heating, in temperature are 7 DEG C~15 during winter heating
In the case of DEG C, Energy Efficiency Ratio COP values can realize heat-production functions, Wu Xujie more than 6, in large public building air-conditioning system
Enter municipal heating systems.
Brief description of the drawings
Fig. 1 is the structural representation of the large-scale handpiece Water Chilling Units of air cooling superposition type of the present invention.
In figure shown in mark：1- compressors, 2- gs-oil separators, 3- four-way valves, 4- condensers, 5- evaporators, 6- separation
Reservoir, 7- evaporative condensers, 8- gas-liquid separators, 9- first throttle components, the orifice unions of 10- second, 11- first are non-return
Valve, the check (non-return) valves of 12- second, the check (non-return) valves of 13- the 3rd, the check (non-return) valves of 14- the 4th.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is further illustrated.
As shown in figure 1, the large-scale handpiece Water Chilling Units of air cooling superposition type, including it is compressor 1, gs-oil separator 2, four-way valve 3, cold
Condenser 4, evaporator 5, separation reservoir 6, evaporative condenser 7 and gas-liquid separator 8, four-way valve 3 be provided with A mouths, B mouths, C mouths and
D mouths, the outlet of compressor 1 are connected with the entrance of gs-oil separator 2, and the outlet of gs-oil separator 2 is connected with the A mouths of four-way valve 3,
The D mouths of four-way valve 3 are connected with the first port of condenser 4；
The entrance of separation reservoir 6 is connected with the second port of condenser 4 and the first port of evaporator 5 respectively, separates
The first check (non-return) valve 11 is provided between the entrance of reservoir 6 and the second port of condenser 4, separates entrance and the evaporation of reservoir 6
The second check (non-return) valve 12 is provided between the first port of device 5；
The liquid-phase outlet of separation reservoir 6 is connected by first throttle component 9 with the first entrance of evaporative condenser 7,
The gaseous phase outlet of separation reservoir 6 is connected with the second entrance of evaporative condenser 7；
The first outlet of evaporative condenser 7 is connected with the entrance of compressor 1, and the second outlet of evaporative condenser 7 is led to
Cross the second orifice union 10 respectively with the second port of condenser 4 and the first port of evaporator 5 to be connected, the second orifice union 10
The 3rd check (non-return) valve 13 is provided between the second port of condenser 4, between the second orifice union 10 and the first port of evaporator 5
Provided with the 4th check (non-return) valve 14；
The second port of evaporator 5 is connected with the B mouths of four-way valve 3, the C mouths of four-way valve 3 and the entrance phase of gas-liquid separator 8
Even, the outlet of gas-liquid separator 8 is connected with the entrance of compressor 1；
The self-cascade heat pump circulatory system uses the mixing work being made up of high boiling component R124 and low boiling component R32
Matter.
Further, first throttle component 9 includes the first magnetic valve, the first liquid-sighting glass and the first expansion being sequentially connected
Valve, the liquid-phase outlet of the first magnetic valve connection separation reservoir 6, the first expansion valve connect the first entrance of evaporative condenser 7；
First magnetic valve is used to control high boiling component R124 liquid line break-makes, the first magnetic valve be controlled by system pressure at expulsion and
Low boiling component R32 condensation temperature, close during higher than setting value, disconnect during less than setting value；Preferably, system discharge pressure
Setting value is：2.5~1.7Mpa, low boiling component R32 condensation temperatures：20~15 DEG C；First liquid-sighting glass is used to observe higher boiling
Whether component R124 internal circulating load is enough, in order to be properly added；First expansion valve is used for high boiling component R124 expenditure and pressures,
This part is different from conventional operating mode, the big several times of Capacity Ratio air conditioning condition when selecting.High boiling component R124 is using pulsation feed flow
Mode, be advantageous to efficiently separating again for high boiling component R124 and low boiling component R32.
Further, the second orifice union 10 includes second solenoid valve, the second liquid-sighting glass and the second expansion being sequentially connected
Valve, second solenoid valve connect the second outlet of evaporative condenser 7, and the second expansion valve connects the 3rd check (non-return) valve 13 and the 4th respectively
Check (non-return) valve 14.
Further, the large-scale handpiece Water Chilling Units of air cooling superposition type be additionally provided with for control switching kind of refrigeration cycle pattern and
The controller (not shown) of circulation pattern is heated, controller is connected with four-way valve 3.The major function of controller is to pass through control
The break-make of four-way valve, so as to change the working medium of system flow direction.
Further, when the large-scale handpiece Water Chilling Units operation kind of refrigeration cycle pattern of the air cooling superposition type, four-way valve 3 is obstructed
Electricity, connect between the A mouths and D mouths of four-way valve 3, connected between B mouths and C mouths；Run and make when the self-cascade heat pump circulatory system
During thermal cycling profile, four-way valve 3 is powered, and connects between the A mouths and B mouths of four-way valve 3, is connected between C mouths and D mouths.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from substantive content of the present invention, art technology
Any deformation, improvement, the replacement that personnel are contemplated that each fall within protection scope of the present invention.
Claims (5)
1. a kind of large-scale handpiece Water Chilling Units of air cooling superposition type, it is characterised in that including compressor, gs-oil separator, four-way valve, wind
Cool condenser, evaporator, separation reservoir, evaporative condenser and gas-liquid separator, four-way valve are provided with A mouths, B mouths, C mouths and D
Mouthful, the outlet of compressor is connected with the entrance of gs-oil separator, and the outlet of gs-oil separator is connected with the A mouths of four-way valve, four-way
The D mouths of valve are connected with the first port of air-cooled condenser；Separate the entrance second port with air-cooled condenser respectively of reservoir
It is connected with the first port of evaporator, separates non-return provided with first between the entrance of reservoir and the second port of air-cooled condenser
Valve, separate and the second check (non-return) valve is provided between the entrance of reservoir and the first port of evaporator；Separate the liquid-phase outlet of reservoir
It is connected by first throttle component with the first entrance of evaporative condenser, separates the gaseous phase outlet and evaporating type condensing of reservoir
The second entrance of device is connected；The first outlet of evaporative condenser is connected with the entrance of compressor, and the second of evaporative condenser
Outlet is connected with the second port of air-cooled condenser and the first port of evaporator respectively by the second orifice union, the second throttling
Be provided with the 3rd check (non-return) valve between component and the second port of air-cooled condenser, the first port of the second orifice union and evaporator it
Between be provided with the 4th check (non-return) valve；The B mouths of the second port of evaporator and four-way valve connect, the C mouths of four-way valve and gas-liquid separator
Entrance is connected, and the outlet of gas-liquid separator is connected with the entrance of compressor；The large-scale handpiece Water Chilling Units of air cooling superposition type use
The mixed working fluid being made up of high boiling component R124 and low boiling component R32.
2. the large-scale handpiece Water Chilling Units of air cooling superposition type according to claim 1, it is characterised in that first throttle component includes
The first magnetic valve, the first liquid-sighting glass and the first expansion valve being sequentially connected, the liquid phase of the first magnetic valve connection separation reservoir go out
Mouthful, the first expansion valve connects the first entrance of evaporative condenser；High boiling component R124 is using pulsation feed liquid way.
3. the large-scale handpiece Water Chilling Units of air cooling superposition type according to claim 1, it is characterised in that the second orifice union includes
Second solenoid valve, the second liquid-sighting glass and the second expansion valve being sequentially connected, the second of second solenoid valve connection evaporative condenser
Outlet, the second expansion valve connect the 3rd check (non-return) valve and the 4th check (non-return) valve respectively.
4. the large-scale handpiece Water Chilling Units of air cooling superposition type according to claim 1, it is characterised in that the air cooling superposition type
Large-scale handpiece Water Chilling Units are additionally provided with for controlling switching kind of refrigeration cycle pattern and heating the controller of circulation pattern, controller and four-way
Valve is connected.
5. the large-scale handpiece Water Chilling Units of air cooling superposition type according to claim 5, it is characterised in that when the air cooling overlapping
When the large-scale handpiece Water Chilling Units of formula run kind of refrigeration cycle pattern, four-way valve no power, connected between the A mouths and D mouths of four-way valve, B mouths and C
Connected between mouthful；When the large-scale handpiece Water Chilling Units operation heating circulation pattern of the air cooling superposition type, four-way valve is powered, four-way valve
A mouths and B mouths between connect, connected between C mouths and D mouths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010933.9A CN107763871A (en) | 2017-10-26 | 2017-10-26 | A kind of large-scale handpiece Water Chilling Units of air cooling superposition type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711010933.9A CN107763871A (en) | 2017-10-26 | 2017-10-26 | A kind of large-scale handpiece Water Chilling Units of air cooling superposition type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107763871A true CN107763871A (en) | 2018-03-06 |
Family
ID=61270679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711010933.9A Pending CN107763871A (en) | 2017-10-26 | 2017-10-26 | A kind of large-scale handpiece Water Chilling Units of air cooling superposition type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107763871A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301473A (en) * | 1994-05-02 | 1995-11-14 | Kubota Corp | Heat pump apparatus |
| CN101782289A (en) * | 2010-01-29 | 2010-07-21 | 武汉新世界制冷工业有限公司 | High-efficiency screw-type auto-cascading refrigeration system |
| CN106196681A (en) * | 2015-12-03 | 2016-12-07 | 青岛海尔特种电冰柜有限公司 | Middle fractional condensation type self-cascade refrigeration system system and refrigeration plant |
| CN206037461U (en) * | 2016-05-20 | 2017-03-22 | 南京天源冷冻设备有限公司 | Novel binary channels cascade refrigeration system |
-
2017
- 2017-10-26 CN CN201711010933.9A patent/CN107763871A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07301473A (en) * | 1994-05-02 | 1995-11-14 | Kubota Corp | Heat pump apparatus |
| CN101782289A (en) * | 2010-01-29 | 2010-07-21 | 武汉新世界制冷工业有限公司 | High-efficiency screw-type auto-cascading refrigeration system |
| CN106196681A (en) * | 2015-12-03 | 2016-12-07 | 青岛海尔特种电冰柜有限公司 | Middle fractional condensation type self-cascade refrigeration system system and refrigeration plant |
| CN206037461U (en) * | 2016-05-20 | 2017-03-22 | 南京天源冷冻设备有限公司 | Novel binary channels cascade refrigeration system |
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Application publication date: 20180306 |