CN203757921U - Air source heat pump air conditioning system - Google Patents
Air source heat pump air conditioning system Download PDFInfo
- Publication number
- CN203757921U CN203757921U CN201420085123.5U CN201420085123U CN203757921U CN 203757921 U CN203757921 U CN 203757921U CN 201420085123 U CN201420085123 U CN 201420085123U CN 203757921 U CN203757921 U CN 203757921U
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- heat exchanger
- check valve
- valve
- outlet
- entrance
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- Expired - Lifetime
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims description 57
- 239000007921 spray Substances 0.000 claims description 11
- 230000036413 temperature sense Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 28
- 238000001816 cooling Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 238000004781 supercooling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air source heat pump air conditioning system which comprises a compressor, an electromagnetic four-way valve, a shell pipe heat exchanger, a fin heat exchanger, a thermo expansion valve, a gas-liquid separator, a high-pressure liquid storage device, a bridge-type structure assembly, a plate-type heat exchanger, an electromagnetic valve assembly and a controller. The first connection port of the bridge-type structure assembly is connected with the fin heat exchanger, the second connection port of the bridge-type structure assembly is connected with the shell pipe heat exchanger, an outlet of the bridge-type structure assembly is connected with a main-path inlet of the plate-type heat exchanger through the high-pressure liquid storage device, an inlet of the bridge-type structure assembly is connected with a main-path outlet of the plate-type heat exchanger through the thermo expansion valve, the first port of the electromagnetic valve assembly is connected with a flow-division port in a connection pipe between the high-pressure liquid storage device and the plate-type heat exchanger, the second port of the electromagnetic valve assembly is connected with an auxiliary-path inlet of the plate-type heat exchanger, and an auxiliary-path outlet of the plate-type heat exchanger is connected with a liquid spraying port of the compressor.
Description
Technical field
The utility model relates to air-conditioning system, especially relates to air-source heat pump air conditioning system.
Background technology
Along with growth in the living standard, people also day by day improve the requirement of air quality, and therefore, it is ripe that air-conditioning technical is also tending towards in updating.Current, the type of air-conditioning system is varied, for example, and air source heat pump type, water resource heat pump formula, water-cooling screw rod formula and absorption refrigeration formula etc.Because China belongs to lack of water big country, meanwhile, utilize steam or electrical heating heating lower to the utilization rate of the energy, therefore, mostly adopt air-source heat pump air conditioning system.
It is cold/heat source that air-source heat pump air conditioning system mainly relies on air.But when environment temperature is very low, evaporating pressure reduces, and system refrigerant circulation reduces, and capacity sharply reduces, and can cause unit heating capacity seriously on the low side.Thereby the use of air-source heat pump air conditioning system under the very low environment of China's North of Yangtze River winter temperature has certain restriction.Therefore, the low-temperature heating of air-source heat pump air conditioning system also becomes a great problem in industry.
During air-source heat pump air conditioning system low temperature, heating capacity main cause on the low side is that compressor air-discharging amount is on the low side, therefore, and the heating capacity of unit when the capacity of increase compressor can improve low temperature.In prior art, the steam that adopts flash vessel that shwoot after coolant throttle is gone out sprays into compressor, to increase the capacity of compressor, although adopt the method can improve to a certain extent the low-temperature heating capacity of air-conditioning system.But the jet amount of flash vessel does not have controllability, and to the not raising effect of the refrigerating capacity of air-source heat pump air conditioning system, only to heating, played optimization.
Utility model content
Technical problem to be solved in the utility model is that in prior art, air-source heat pump air conditioning system is only optimized heating process.
For addressing the above problem, the utility model provides air-source heat pump air conditioning system, comprise compressor, solenoid operated four-way valve, case tube heat exchanger, finned heat exchanger, heating power expansion valve, gas-liquid separator and high-pressure reservoir, the D of described solenoid operated four-way valve is to being connected with the exhaust outlet of described compressor, the S of solenoid operated four-way valve is to being connected with the air entry of compressor through described gas-liquid separator, the C of solenoid operated four-way valve is to being connected with described finned heat exchanger, the E of solenoid operated four-way valve is to being connected with described case tube heat exchanger, also comprise bridge architecture assembly, plate type heat exchanger, electromagnetic valve component and controller, described bridge architecture assembly comprises the first check valve being connected in turn, the second check valve, the 3rd check valve and the 4th check valve, between described the first check valve and described the second check valve, there is the first connector, between described the 3rd check valve and described the 4th check valve, there is the second connector, the entrance of bridge architecture assembly is between the second check valve and the 3rd check valve, the outlet of bridge architecture assembly is between the first check valve and the 4th check valve, described the first connector is connected with finned heat exchanger, described the second connector is connected with case tube heat exchanger, the outlet of bridge architecture assembly is connected with the main road entrance of described plate type heat exchanger by described high-pressure reservoir, the entrance of bridge architecture assembly is connected with the main road outlet of plate type heat exchanger by heating power expansion valve, diffluence pass between the first interface of described electromagnetic valve component and high-pressure reservoir and plate type heat exchanger on tube connector is connected, the second interface of electromagnetic valve component is connected with the bypass entrance of plate type heat exchanger, the bypass outlet of plate type heat exchanger is connected with the mouth spray of compressor.
Further, described the first connector is connected with the outlet of described the second check valve with the entrance of described the first check valve respectively, described the second connector is connected with the entrance of described the 4th check valve with the outlet of described the 3rd check valve respectively, the entrance of bridge architecture assembly is connected with the entrance of the 3rd check valve with the entrance of the second check valve respectively, and the outlet of bridge architecture assembly is connected with the outlet of the 4th check valve with the outlet of the first check valve respectively.
Further, described electromagnetic valve component comprises magnetic valve and hydrojet heating power expansion valve, described first interface is positioned at described magnetic valve one end, and the other end of magnetic valve is connected with the entrance of described hydrojet heating power expansion valve, and described the second interface is positioned at the outlet of hydrojet heating power expansion valve.
Further, the temperature sense mechanism of described heating power expansion valve is arranged on the tube connector between described solenoid operated four-way valve and described gas-liquid separator.
Further, the temperature sense mechanism of described hydrojet heating power expansion valve is arranged on the tube connector between described compressor and described plate type heat exchanger.
The beneficial effects of the utility model are: utilize plate type heat exchanger, can make the refrigerant of main road after condensation heat release continue heat release, under cooling condition, air-source heat pump air conditioning system can obtain larger degree of supercooling, effectively raises the refrigerating capacity of unit;
Utilize electromagnetic valve component, according to the degree of superheat, regulate the coolant quantity that sprays into compressor, effectively controlled the hydrojet condition of system, improved the heating capacity of air-source heat pump air conditioning system under low temperature environment simultaneously;
Utilize bridge architecture assembly, make the public same heating power expansion valve of cooling condition and heating condition, and refrigerant flowing in heating power expansion valve is identical, effectively reduce the complexity of air-conditioning system, the defect having existed while having overcome bidirectional flow heating power expansion valve antikinesis in prior art.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model air-source heat pump air conditioning system;
Fig. 2 is the structural representation of the utility model plate type heat exchanger 9;
Fig. 3 is the structural representation of the utility model bridge architecture assembly 8;
Fig. 4 is the structural representation of the utility model electromagnetic valve component 10.
Wherein, 1 is compressor, and 2 is solenoid operated four-way valve, 3 is case tube heat exchanger, and 4 is finned heat exchanger, and 5 is heating power expansion valve, 6 is gas-liquid separator, and 7 is high-pressure reservoir, and 8 is bridge architecture assembly, 9 is plate type heat exchanger, and 10 is electromagnetic valve component, and 11 is controller, 81 is the first check valve, and 82 is the second check valve, and 83 is the 3rd check valve, 84 is the 4th check valve, and 101 is magnetic valve, and 102 is hydrojet heating power expansion valve.
The specific embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in detail.
Air-source heat pump air conditioning system of the present utility model, comprise compressor 1, solenoid operated four-way valve 2, case tube heat exchanger 3, finned heat exchanger 4, heating power expansion valve 5, gas-liquid separator 6 and high-pressure reservoir 7, the D of described solenoid operated four-way valve 2 is to being connected with the exhaust outlet of described compressor 1, the S of solenoid operated four-way valve 2 is to being connected with the air entry of compressor through described gas-liquid separator 6, the C of solenoid operated four-way valve 2 is to being connected with described finned heat exchanger 4, the E of solenoid operated four-way valve 2 is to being connected with described case tube heat exchanger 3, also comprise bridge architecture assembly 8, plate type heat exchanger 9, electromagnetic valve component 10 and controller 11, described bridge architecture assembly 8 comprises the first check valve 81 being connected in turn, the second check valve 82, the 3rd check valve 83 and the 4th check valve 84, between described the first check valve 81 and described the second check valve 82, there is the first connector, between described the 3rd check valve 83 and described the 4th check valve 84, there is the second connector, the entrance of bridge architecture assembly 8 is between the second check valve 82 and the 3rd check valve 83, the outlet of bridge architecture assembly 8 is between the first check valve 81 and the 4th check valve 84, described the first connector is connected with finned heat exchanger 4, described the second connector is connected with case tube heat exchanger 3, the outlet of bridge architecture assembly 8 is connected with the main road entrance of described plate type heat exchanger 9 by described high-pressure reservoir 7, the entrance of bridge architecture assembly 8 is connected with the main road outlet of plate type heat exchanger 9 by heating power expansion valve 5, diffluence pass between the first interface of described electromagnetic valve component 10 and high-pressure reservoir 7 and plate type heat exchanger 9 on tube connector is connected, the second interface of electromagnetic valve component 10 is connected with the bypass entrance of plate type heat exchanger 9, the bypass outlet of plate type heat exchanger 9 is connected with the mouth spray of compressor 1.
Utilize plate type heat exchanger 9, can make the refrigerant of main road after condensation heat release continue heat release, under cooling condition, air-source heat pump air conditioning system can obtain larger degree of supercooling, effectively raise the refrigerating capacity of unit, utilize electromagnetic valve component 10, according to the degree of superheat, regulate the coolant quantity that sprays into compressor, effectively controlled the hydrojet condition of system, improved the heating capacity of air-source heat pump air conditioning system under low temperature environment simultaneously, utilize bridge architecture assembly 8, make the public same heating power expansion valve of cooling condition and heating condition, and refrigerant flowing in heating power expansion valve is identical, effectively reduce the complexity of air-conditioning system, the defect having existed while having overcome bidirectional flow heating power expansion valve antikinesis in prior art.
As shown in Figure 1, in this application, air-source heat pump air conditioning system comprises compressor 1, solenoid operated four-way valve 2, case tube heat exchanger 3, finned heat exchanger 4 and gas-liquid separator 6.In prior art, solenoid operated four-way valve 2 comprise C to, D to, E to, S to.Conventionally, in air-conditioning system, the D of solenoid operated four-way valve 2 is to being connected with the exhaust outlet of compressor 1, and the S of solenoid operated four-way valve 2 is to being connected with the air entry of compressor 1 through gas-liquid separator 6, the C of solenoid operated four-way valve 2 is to being connected with finned heat exchanger 4, and the E of solenoid operated four-way valve 2 is to being connected with case tube heat exchanger 3.
In this application, air-source heat pump air conditioning system also comprises high-pressure reservoir 7, heating power expansion valve 5, bridge architecture assembly 8, plate type heat exchanger 9, electromagnetic valve component 10 and controller 11.Wherein, plate type heat exchanger 9 comprises main road entrance, main road outlet, bypass entrance and bypass outlet, as Fig. 2.The first link A of bridge architecture assembly 8 is connected with finned heat exchanger 4, the second link C of bridge architecture assembly 8 is connected with case tube heat exchanger 3, the port of export D of bridge architecture assembly 8 is connected with the main road entrance of plate type heat exchanger 9 by high-pressure reservoir 7, and the arrival end B of bridge architecture assembly 8 is connected with the main road outlet of plate type heat exchanger 9 by heating power expansion valve 5.Wherein, on the first link A, be provided with the first connector, on the second link C, be provided with the second connector, the entrance of bridge architecture assembly 8 is on arrival end B, and the outlet of bridge architecture assembly 8 is on port of export D.Bridge architecture assembly 8 is connected with finned heat exchanger 4, case tube heat exchanger 3, heating power expansion valve 5, high-pressure reservoir 7 respectively by the first connector, the second connector, entrance, outlet.
Concrete, as shown in Figure 3, in this application, bridge architecture assembly 8 comprises the first check valve 81 being connected in turn, the second check valve 82, the 3rd check valve 83 and the 4th check valve 84, the first connector is between the first check valve 81 and the second check valve 82, the first connector is connected with the outlet of the second check valve 82 with the entrance of the first check valve 81 respectively, the second connector is between the 3rd check valve 83 and the 4th check valve 84, the second connector is connected with the entrance of the 4th check valve 84 with the outlet of the 3rd check valve 83 respectively, the entrance of bridge architecture assembly 8 is between the second check valve and the 3rd check valve, the entrance of bridge architecture assembly 8 is connected with the entrance of the 3rd check valve 83 with the entrance of the second check valve 82 respectively, the outlet of bridge architecture assembly 8 is between the first check valve 81 and the 4th check valve 84, the outlet of bridge architecture assembly 8 is connected with the outlet of the 4th check valve 84 with the outlet of the first check valve 81 respectively.The application utilizes the directionality of check valve in bridge architecture assembly 8 and the pressure differential of check valve both sides refrigerant, operation and heat the public same heating power expansion valve of operation makes to freeze, and refrigerant flowing in heating power expansion valve is identical, effectively reduce the complexity of system, the defect having existed while having overcome bidirectional flow heating power expansion valve antikinesis in prior art.
Wherein, in this application, diffluence pass between the first interface of electromagnetic valve component 10 and high-pressure reservoir 7 and plate type heat exchanger 9 on tube connector is connected, the second interface of electromagnetic valve component 10 is connected with the bypass entrance of plate type heat exchanger 9, and the bypass outlet of plate type heat exchanger 9 is connected with the mouth spray of compressor 1.Concrete, as shown in Figure 4, electromagnetic valve component 10 comprises magnetic valve 101 and hydrojet heating power expansion valve 102, and described first interface is positioned at magnetic valve 101 one end, the other end of magnetic valve 101 is connected with the entrance of hydrojet heating power expansion valve 102, the second interface be positioned at the outlet of hydrojet heating power expansion valve 102.Controller 11 is connected in the electric cabinet of air-conditioning system, for controlling the Kai Heguan of electromagnetic valve component 10 magnetic valves 101.In this application, the temperature sense mechanism of heating power expansion valve 5 is arranged on the tube connector between solenoid operated four-way valve 2 and described gas-liquid separator 6.The temperature sense mechanism of hydrojet heating power expansion valve 102 is arranged on the tube connector between compressor 1 and plate type heat exchanger 9.
Below in conjunction with cooling condition and heating condition, the use procedure of the application's air-source heat pump air conditioning system is described in detail.
Cooling condition: refrigerant compresses increasing temperature and pressure in compressor 1, then, enters finned heat exchanger 4 condensation heat releases by solenoid operated four-way valve 2, then enters bridge architecture assembly 8, and the layout due to check valve in bridge architecture assembly 8 makes refrigerant flow into high-pressure reservoir 7.Refrigerant in high-pressure reservoir 7 enters plate type heat exchanger through plate type heat exchanger 9 main road entrances again, simultaneously, the tube connector of solenoid operated four-way valve 2 between high-pressure reservoir 7 and plate type heat exchanger 9 main road entrances distributes a part of refrigerant liquid, after 102 throttlings of hydrojet heating power expansion valve, by plate type heat exchanger 9 bypass entrances, enter plate type heat exchanger 9, in plate type heat exchanger 9, after heat exchange evaporation, spray into compressor 1 with the refrigerant liquid of main road.Refrigerant liquid in main road obtains after certain degree of supercooling in plate type heat exchanger 9, through heating power expansion valve 5 reducing pressure by regulating flows, enter bridge architecture assembly 8, due to the poor effect of check valve pressure at both sides, refrigerant can only enter case tube heat exchanger 3, in case tube heat exchanger 3, evaporate the heat in absorption refrigerating water, to reach the object of refrigeration.Refrigerant after evaporation enters gas-liquid separator 6 through solenoid operated four-way valve 2, last, and refrigerant enters compressor 1 again and continues next hot cold circulation.Because the refrigerant of main road after condensation heat release continues heat release in plate type heat exchanger 9, and obtain larger degree of supercooling, effectively raise the refrigerating capacity of air-conditioning system.
Heating condition: refrigerant compresses increasing temperature and pressure in compressor 1, then, enters case tube heat exchanger 3 condensation heatings by solenoid operated four-way valve 2 and makes water, to reach, heats object.Then enter bridge architecture assembly 8, the layout due to check valve in bridge architecture assembly 8 makes refrigerant flow into high-pressure reservoir 7.Refrigerant in high-pressure reservoir 7 enters plate type heat exchanger 9 through plate type heat exchanger 9 main road entrances, simultaneously, the tube connector of electromagnetic valve component 10 between high-pressure reservoir 7 and plate type heat exchanger 9 main road entrances distributes a part of refrigerant liquid, after 5 throttlings of hydrojet heating power expansion valve, by plate type heat exchanger 9 bypass entrances, enter plate type heat exchanger 9, then in plate type heat exchanger 9, after heat exchange evaporation, spray into compressor 1 with main road refrigerant liquid.Refrigerant liquid in main road obtains after certain degree of supercooling in plate type heat exchanger 9, after heating power expansion valve 5 reducing pressure by regulating flows, enter bridge architecture assembly 8, due to the poor effect of check valve pressure at both sides, refrigerant can only enter finned heat exchanger 4, evaporates the heat in absorbing environmental in finned heat exchanger 4.Refrigerant after evaporation enters gas-liquid separator 6 through solenoid operated four-way valve 2, and last refrigerant enters compressor 1 and continues next hot cold circulation.From electromagnetic valve component 10, spray into the refrigerant of compressor 1, effectively increased the capacity that heats operation lower compression machine, improved the heating capacity of air-conditioning system.While hydrojet heating power expansion valve 102 is the control of the degree of superheat after plate type heat exchanger 9 aperture according to bypass refrigerant, has effectively controlled the coolant quantity that sprays into compressor 1.Improved the adaptability of system to environment temperature and water temperature variation.
Claims (5)
1. air-source heat pump air conditioning system, comprise compressor, solenoid operated four-way valve, case tube heat exchanger, finned heat exchanger, heating power expansion valve, gas-liquid separator and high-pressure reservoir, the D of described solenoid operated four-way valve is to being connected with the exhaust outlet of described compressor, the S of solenoid operated four-way valve is to being connected with the air entry of compressor through described gas-liquid separator, the C of solenoid operated four-way valve is to being connected with described finned heat exchanger, the E of solenoid operated four-way valve is to being connected with described case tube heat exchanger, it is characterized in that, also comprise bridge architecture assembly, plate type heat exchanger, electromagnetic valve component and controller, described bridge architecture assembly comprises the first check valve being connected in turn, the second check valve, the 3rd check valve and the 4th check valve, between described the first check valve and described the second check valve, there is the first connector, between described the 3rd check valve and described the 4th check valve, there is the second connector, the entrance of bridge architecture assembly is between the second check valve and the 3rd check valve, the outlet of bridge architecture assembly is between the first check valve and the 4th check valve, described the first connector is connected with finned heat exchanger, described the second connector is connected with case tube heat exchanger, the outlet of bridge architecture assembly is connected with the main road entrance of described plate type heat exchanger by described high-pressure reservoir, the entrance of bridge architecture assembly is connected with the main road outlet of plate type heat exchanger by heating power expansion valve, diffluence pass between the first interface of described electromagnetic valve component and high-pressure reservoir and plate type heat exchanger on tube connector is connected, the second interface of electromagnetic valve component is connected with the bypass entrance of plate type heat exchanger, the bypass outlet of plate type heat exchanger is connected with the mouth spray of compressor.
2. air-source heat pump air conditioning system as claimed in claim 1, it is characterized in that, described the first connector is connected with the outlet of described the second check valve with the entrance of described the first check valve respectively, described the second connector is connected with the entrance of described the 4th check valve with the outlet of described the 3rd check valve respectively, the entrance of bridge architecture assembly is connected with the entrance of the 3rd check valve with the entrance of the second check valve respectively, and the outlet of bridge architecture assembly is connected with the outlet of the 4th check valve with the outlet of the first check valve respectively.
3. air-source heat pump air conditioning system as claimed in claim 1, it is characterized in that, described electromagnetic valve component comprises magnetic valve and hydrojet heating power expansion valve, described first interface is positioned at described magnetic valve one end, the other end of magnetic valve is connected with the entrance of described hydrojet heating power expansion valve, and described the second interface is positioned at the outlet of hydrojet heating power expansion valve.
4. air-source heat pump air conditioning system as claimed in claim 1, is characterized in that, the temperature sense mechanism of described heating power expansion valve is arranged on the tube connector between described solenoid operated four-way valve and described gas-liquid separator.
5. air-source heat pump air conditioning system as claimed in claim 2, is characterized in that, the temperature sense mechanism of described hydrojet heating power expansion valve is arranged on the tube connector between described compressor and described plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085123.5U CN203757921U (en) | 2014-02-27 | 2014-02-27 | Air source heat pump air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085123.5U CN203757921U (en) | 2014-02-27 | 2014-02-27 | Air source heat pump air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203757921U true CN203757921U (en) | 2014-08-06 |
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ID=51253185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085123.5U Expired - Lifetime CN203757921U (en) | 2014-02-27 | 2014-02-27 | Air source heat pump air conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203757921U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644440A (en) * | 2016-12-12 | 2017-05-10 | 浙江春晖智能控制股份有限公司 | Thermostatic expansion valve detection method and device |
| CN107655234A (en) * | 2017-09-19 | 2018-02-02 | 山东凯丰节能科技有限公司 | A kind of air-conditioning system pipeline |
| CN109028640A (en) * | 2018-07-03 | 2018-12-18 | 浙江国祥股份有限公司 | A kind of air source heat pump and its flow control technique |
| CN112399770A (en) * | 2019-08-14 | 2021-02-23 | 上海唐银投资发展有限公司 | Air conditioner construction method for data center |
-
2014
- 2014-02-27 CN CN201420085123.5U patent/CN203757921U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644440A (en) * | 2016-12-12 | 2017-05-10 | 浙江春晖智能控制股份有限公司 | Thermostatic expansion valve detection method and device |
| CN107655234A (en) * | 2017-09-19 | 2018-02-02 | 山东凯丰节能科技有限公司 | A kind of air-conditioning system pipeline |
| CN109028640A (en) * | 2018-07-03 | 2018-12-18 | 浙江国祥股份有限公司 | A kind of air source heat pump and its flow control technique |
| CN112399770A (en) * | 2019-08-14 | 2021-02-23 | 上海唐银投资发展有限公司 | Air conditioner construction method for data center |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
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| CX01 | Expiry of patent term |