CN103206818A - Throttling device applied to heat pump hot water air conditioner - Google Patents
Throttling device applied to heat pump hot water air conditioner Download PDFInfo
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- CN103206818A CN103206818A CN2013101426149A CN201310142614A CN103206818A CN 103206818 A CN103206818 A CN 103206818A CN 2013101426149 A CN2013101426149 A CN 2013101426149A CN 201310142614 A CN201310142614 A CN 201310142614A CN 103206818 A CN103206818 A CN 103206818A
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- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention aims to provide a throttling device applied to a heat pump hot water air conditioner. The device consists of a bidirectional thermal expansion valve or a bidirectional electronic expansion valve and a liquid storage tank internally provided with a dry filter or an independent dry filter and an ordinary liquid storage tank. The throttling device is characterized in that a reverse one-way valve element is arranged between a connecting port I or a connecting port II and a valve box I; the connecting port I and the connecting port II are connected with an upper cover of the liquid storage tank through a channel I and a channel II internally provided with a forward one-way valve element and then through a connecting pipe; a throttling hole is formed between the valve box I and a valve box II; the valve box II is connected with a liquid conveying pipe of the liquid storage tank through the connecting pipe; and a connecting port III is connected with the upper cover of the liquid storage tank through the connecting pipe internally provided with the forward one-way valve element. The throttling device solves the problem that a throttling heat pump hot water air conditioning system, the dry filter and the liquid storage tank using a tee thermal expansion valve or a tee electronic expansion valve are not easy to install, so that the performance of the system is greatly improved, and the cost is reduced to certain extent.
Description
Technical field
The present invention relates to the heat pump hot water air conditioning The Application of Technology, particularly be applied to the throttling arrangement of heat pump hot-water air conditioner group.
Background technology
Heat pump hot water air conditioning is the novel machine with good energy-saving effect that rose day by day in recent years, and the systems technology of this machine has in these years had very large progress and development; Comprising the 5 way valve of my invention, with regard to the good problem that has solved the commutation of system; With regard to the throttling accessory, I just like: the patent that three-way throttle valve, heating power expansion valve, electric expansion valve etc. are relevant has solved the throttling problem of hot water air-conditioning system; Also need there be fluid reservoir to be solved and the installation question of device for drying and filtering in the system that uses 5 way valve and heating power expansion valve or electric expansion valve, particularly the position of fluid reservoir and device for drying and filtering installation is unreasonable, influence the efficient of system and the essence effect of device for drying and filtering to a great extent, when system model is changed, wasted the slow defective of a large amount of energy and reaction speed especially.
Summary of the invention
The object of the present invention is to provide a kind of throttling arrangement that is applied to the heat pump hot-water air conditioner group, no matter this throttling arrangement is in the sort of operational mode when using in heat pump hot water air-conditioning system, unnecessary liquid refrigerants all is to be stored in the fluid reservoir, so because unnecessary liquid refrigerants all is to be stored in the fluid reservoir, not have in the heat exchanger during condensation too many liquid refrigerants heat exchanger can be converted to the state of evaporation soon from condensing state, can reach best running status with the shortest time during system model conversion like this; Be in liquid refrigerants that the sort of operational mode enters throttling and all be the liquid refrigerants through device for drying and filtering, and to be in the sort of operational mode all be same direction through the refrigerant of device for drying and filtering, can better bring into play the effect of device for drying and filtering like this.
The present invention is realized by following technical scheme:
A kind of throttling arrangement that is applied to heat pump hot water air conditioning of the present invention, this device by two-way heating power expansion valve or two-way electric expansion valve with in be provided with the fluid reservoir of dry filter or independent device for drying and filtering and the interior fluid reservoir of not establishing dry filter formed, it is characterized in that: the throttling arrangement that category-A is applied to heat pump hot water air conditioning by two-way heating power expansion valve or two-way electric expansion valve with in be provided with dry filter fluid reservoir form, connector one, respectively be provided with a reverse nonreturn valve core between connector two and the valve chamber one, connector one, connector two is by the interior passage one that is provided with the forward nonreturn valve core, passage two, be connected with the fluid reservoir loam cake by tube connector again, be provided with a throttle orifice between valve chamber one and the valve chamber two, valve chamber two is connected with base on the woven hose of fluid reservoir center by tube connector, and connector three is connected with the fluid reservoir loam cake by the interior tube connector that is provided with the forward nonreturn valve core; The throttling arrangement that category-B is applied to heat pump hot water air conditioning is made up of two-way heating power expansion valve or two-way electric expansion valve and independent device for drying and filtering and common fluid reservoir, connector one, respectively be provided with a reverse nonreturn valve core between connector two and the valve chamber one, connector one, connector two is by the interior passage one that is provided with the forward nonreturn valve core, passage two, be connected with the fluid reservoir loam cake by tube connector again, be provided with a throttle orifice between valve chamber one and the valve chamber two, valve chamber two passes through tube connector, device for drying and filtering is connected with the woven hose of fluid reservoir, and connector three is connected with the fluid reservoir loam cake by the interior tube connector that is provided with the forward nonreturn valve core.
Described category-A is applied to the throttling arrangement of heat pump hot water air conditioning or the throttling arrangement that category-B is applied to heat pump hot water air conditioning, it is characterized in that: be exactly two-way heating power expansion valve or a two-way electric expansion valve that has increased device for storing liquid and dry filter device without connector three.
Described two-way heating power expansion valve or two-way electric expansion valve, it is characterized in that: two-way heating power expansion valve or two-way electric expansion valve are made up of thermal expansion driving head and stepper motor driving head and valve body, its valve body structure is divided into connector one, connector two, valve chamber one, valve chamber two, passage one, passage two, four nonreturn valve cores and spacing collar, respectively be provided with a reverse nonreturn valve core between connector one and connector two and the valve chamber one, respectively be provided with a forward nonreturn valve core in passage one between connector one and connector two and the valve chamber two and the passage two, be provided with a throttle orifice between valve chamber one and the valve chamber two; Not directly to be communicated with between passage one and passage two and the valve chamber two when two-way heating power expansion valve or two-way electric expansion valve are used in this throttling arrangement, and increased device for storing liquid and dry filter device.
Be provided with the fluid reservoir of dry filter in described, it is characterized in that: fluid reservoir by circular-arc upper and lower covers, in be provided with dry filter cylindrical tube form; Fluid reservoir loam cake center is provided with an axle center and passes the woven hose that dry filter extends to 0.5 to 1 centimeter place, fluid reservoir bottom, on cover and also be provided with two connectors that are connected with passage two with choke valve passage one, a connector that is connected with connector three; The center of fluid reservoir lower cover be provided with one fixedly usefulness screw and to be provided with one be the big annular fangs that is used for balance of lower cover diameter 2/3rds; In be provided with the cylindrical tube of dry filter, the dry filter part is fixed on dry sorbing material by two stainless steel screen packs the position more than 1/2nd of cylindrical tube.
Do not establish the fluid reservoir of dry filter in described, it is characterized in that: fluid reservoir is made up of circular-arc upper and lower covers and cylindrical tube; The center of fluid reservoir loam cake is provided with a visor, also is provided with two connectors that are connected with passage two with choke valve passage one, a connector that is connected with connector three; The center of fluid reservoir lower cover be provided with one fixedly usefulness screw and to be provided with one be the big annular fangs that is used for balance of lower cover diameter 2/3rds; The cylindrical tube tube wall is provided with a Z type woven hose.
Be provided with the woven hose on the fluid reservoir of dry filter in described, it is characterized in that: be provided with a base directly over the woven hose, be provided with a visor directly over the base, a side of base also is provided with a connector that is connected with valve chamber two.
Do not establish the Z type woven hose of establishing on the fluid reservoir tubing string of dry filter in described, it is characterized in that: place interior half of fluid reservoir to extend near 0.5 to 1 centimeter place, fluid reservoir bottom, what place the fluid reservoir outside is and the device for drying and filtering tube connector.
Described two-way heating power expansion valve valve body, its feature: can also be arranged on side of valve body under the woven hose connector of valve chamber two and fluid reservoir not only can be located at.
Beneficial effect: (1) this product structure simply is easy to industrialization; (2) invention of this product provides a splendid solution for heat pump hot water air conditioning; Very big degree had improved the efficient of system when (3) this product was used in heat pump hot water air-conditioning system; (4) application of this product has also reduced production cost to a certain extent.
Description of drawings
Fig. 1 is applied to the throttling arrangement structural representation of heat pump hot water air conditioning for category-A of the present invention.
Fig. 2 is applied to the throttling arrangement structural representation of heat pump hot water air conditioning for category-B of the present invention.
Fig. 3 is a kind of throttling arrangement that is applied to heat pump hot water air conditioning of the present invention, is somebody's turn to do the structural representation for the bidirectional throttling device that only has two connectors.
Fig. 4 is applied to the two-way heating power expansion valve structural representation of heat pump hot water air conditioning throttling arrangement for the present invention.
Fig. 5 is applied to the two-way electric expansion valve structural representation of heat pump hot water air conditioning throttling arrangement for the present invention.
Fig. 6 is applied to the two-way heating power expansion valve structural representation of heat pump hot water air conditioning for the present invention
Fig. 7 is applied to the two-way electric expansion valve structural representation of heat pump hot water air conditioning for the present invention.
Fig. 8 is applied to the two-way heating power expansion valve of heat pump hot water air conditioning throttling arrangement for the present invention, and valve chamber two is arranged on the side of valve body structural representation with the woven hose connector of fluid reservoir.
Symbol in the accompanying drawing: thermal expansion head or stepper motor driving head 10, valve body 20, connector 1, connector 2 22, connector 3 23, valve chamber 1, valve chamber 2 25, throttle orifice 101, passage 1, passage 2 27, nonreturn valve core 28, nonreturn valve core spacing collar 29, fluid reservoir 30, loam cake 31, cylindrical tube 32, lower cover 33, woven hose 34, visor or base 35, fixed screw 36, annular fangs 37, device for drying and filtering 40, dry sorbing material 41, stainless steel screen pack 42, passage and fluid reservoir tube connector 50, valve chamber two and woven hose tube connector 51.
The specific embodiment
Fig. 1 is applied to the throttling arrangement structural representation of heat pump hot water air conditioning for category-A of the present invention, this device by two-way heating power expansion valve or two-way electric expansion valve by tube connector 50,51 and in be provided with dry filter fluid reservoir 30 form, its two-way heating power expansion valve or two-way electric expansion valve mainly are made up of with valve body 20 thermal expansion driving head 10 and stepper motor driving head 10, and thermal expansion driving head 10 and stepper motor driving head 10 all adopt very ripe structure and technology at present; Respectively be provided with a reverse nonreturn valve core 28 between connector 1, connector 2 22 and the valve chamber 1, connector 1, connector 2 22 are by interior passage 1, the passage 2 27 that is provided with forward nonreturn valve core 28, be connected with fluid reservoir loam cake 31 by tube connector 50 again, be provided with a throttle orifice 101 between valve chamber 1 and the valve chamber 2 25, valve chamber 2 25 is connected with base 35 on the woven hose 34 of fluid reservoir center by tube connector 51, and connector 3 23 is connected with fluid reservoir loam cake 31 by the interior tube connector that is provided with forward nonreturn valve core 28; This throttling arrangement is suitable for heat pump hot water air conditioning, heat pump hot water air conditioning has three heat exchangers, the corresponding heat exchanger that is connected with connector 1 or connector 2 22 any when being in the high pressure condensation, connector 1 or connector 2 22 are in cut-off state with valve chamber one, condensed refrigerant is by passage 1 or passage 2 27, enter fluid reservoir 30 by tube connector 50 again, flow into the bottom of fluid reservoir through the dry filter of establishing in the fluid reservoir 30 40, when the heat exchanger that is connected with connector 3 23 is in the high pressure condensation, condensed refrigerant enters fluid reservoir 30 by the nonreturn valve core in the tube connector, flow into the bottom of fluid reservoirs through the dry filter of establishing in the fluid reservoir 30 40, the heat exchanger that is connected with connector 1 or connector 2 22 any when being in the low pressure evaporating state, condensed liquid refrigerants enters valve chamber 1 after entering 101 throttlings of valve chamber 2 25 process throttle orifices by woven hose 34 and tube connector 51 in the fluid reservoir 30, (heat exchanger that is connected with connector 1 or connector 2 22 any when being in the low pressure evaporating state, another must be in all pressures or high pressure before the operation relatively, another must be in cut-off state with nonreturn valve core between the valve chamber 1 like this) flow to the heat exchanger that is in the low pressure evaporating state that is connected with connector 1 or connector 2 22 by the spool of opening 28.
Fig. 2 is applied to the throttling arrangement structural representation of heat pump hot water air conditioning for category-B of the present invention, its difference of throttling arrangement that this device and category-A are applied to heat pump hot water air conditioning is that device for drying and filtering is independently, the throttling arrangement that its operation principle category-A is applied to heat pump hot water air conditioning is consistent, no longer repeats at this.
Fig. 3 only has the throttling arrangement that the bidirectional throttling device of two connectors and throttling arrangement that category-A is applied to heat pump hot water air conditioning or category-B be applied to heat pump hot water air conditioning and has just lacked individual connector 3 23, and this class throttling arrangement only can only be used for the cooling-and-warming heat pump system of two-mode.
Fig. 4, Fig. 5 are two-way heating power expansion valve and two-way electric expansion valve in being applied to of the amplifying throttling arrangement that A, category-B be applied to heat pump hot water air conditioning.
Fig. 6, Fig. 7 is that two-way heating power expansion valve or two-way electric expansion valve are made up of with valve body 10 thermal expansion driving head 10 and stepper motor driving head 10, its valve body structure is divided into connector 1, connector 2 22, valve chamber 1, valve chamber 2 25, passage 1, passage 2 27, four nonreturn valve cores 28 and two nonreturn valve core spacing collars 29, respectively be provided with a reverse nonreturn valve core 28 between connector 1 and connector 2 22 and the valve chamber 1, respectively be provided with a forward nonreturn valve core 28 in passage 1 between connector 1 and connector 2 22 and the valve chamber 2 25 and the passage 2 27, be provided with a throttle orifice 101 between valve chamber 1 and the valve chamber 2 25; Not directly to be communicated with between passage 1 and passage 2 27 and the valve chamber 2 25 when two-way heating power expansion valve or two-way electric expansion valve are used in throttling arrangement of the present invention, and increased device for storing liquid and dry filter device; When the heat exchanger that is connected with connector 1 when using in system is in the high pressure condensation, condensed refrigerant enters valve chamber 2 25 by passage 1 and enters valve chamber 1 through throttle orifice, flow to the heat exchanger that is in the low pressure evaporating state that is connected with connector 2 22 by the spool of opening 28, when the heat exchanger that is connected with connector 2 22 is in the high pressure condensation, condensed refrigerant enters valve chamber 2 25 by passage 2 26 and enters valve chamber 1 through throttle orifice, by the spool opened 28 flow to be connected with connector 1 be in low pressure evaporating state heat exchanger.
Fig. 8 is the two-way heating power expansion valve that is applied to the heat pump hot water air conditioning throttling arrangement, valve chamber 2 25 is arranged on side of valve body with the connector that the woven hose 34 of fluid reservoir 30 is connected, and design is that heating power expansion valve has kept the function that traditional heating power expansion valve valve core spring can be regulated like this.
Claims (8)
1. a kind of throttling arrangement that is applied to heat pump hot water air conditioning of the present invention, this device by two-way heating power expansion valve or two-way electric expansion valve with in be provided with the fluid reservoir of dry filter or independent device for drying and filtering and the interior fluid reservoir of not establishing dry filter formed, it is characterized in that: the throttling arrangement that category-A is applied to heat pump hot water air conditioning by two-way heating power expansion valve or two-way electric expansion valve with in be provided with dry filter fluid reservoir form, connector one, respectively be provided with a reverse nonreturn valve core between connector two and the valve chamber one, connector one, connector two is by the interior passage one that is provided with the forward nonreturn valve core, passage two, be connected with the fluid reservoir loam cake by tube connector again, be provided with a throttle orifice between valve chamber one and the valve chamber two, valve chamber two is connected with base on the woven hose of fluid reservoir center by tube connector, and connector three is connected with the fluid reservoir loam cake by the interior tube connector that is provided with the forward nonreturn valve core; The throttling arrangement that category-B is applied to heat pump hot water air conditioning is made up of two-way heating power expansion valve or two-way electric expansion valve and independent device for drying and filtering and common fluid reservoir, connector one, respectively be provided with a reverse nonreturn valve core between connector two and the valve chamber one, connector one, connector two is by the interior passage one that is provided with the forward nonreturn valve core, passage two, be connected with the fluid reservoir loam cake by tube connector again, be provided with a throttle orifice between valve chamber one and the valve chamber two, valve chamber two passes through tube connector, device for drying and filtering is connected with the woven hose of fluid reservoir, and connector three is connected with the fluid reservoir loam cake by the interior tube connector that is provided with the forward nonreturn valve core.
2. according to the described a kind of throttling arrangement that is applied to heat pump hot water air conditioning of claim 1, described category-A is applied to the throttling arrangement of heat pump hot water air conditioning or the throttling arrangement that category-B is applied to heat pump hot water air conditioning, it is characterized in that: be exactly two-way heating power expansion valve or a two-way electric expansion valve that has increased device for storing liquid and dry filter device without connector three.
3. according to claim 1 or 2 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, described two-way heating power expansion valve or two-way electric expansion valve, it is characterized in that: two-way heating power expansion valve or two-way electric expansion valve are made up of thermal expansion driving head and stepper motor driving head and valve body, its valve body structure is divided into connector one, connector two, valve chamber one, valve chamber two, throttle orifice, passage one, passage two, four nonreturn valve cores and spacing collar, respectively be provided with a reverse nonreturn valve core between connector one and connector two and the valve chamber one, respectively be provided with a forward nonreturn valve core in passage one between connector one and connector two and the valve chamber two and the passage two, be provided with a throttle orifice between valve chamber one and the valve chamber two; Not directly to be communicated with between passage one and passage two and the valve chamber two when two-way heating power expansion valve or two-way electric expansion valve are used in this throttling arrangement, and increased device for storing liquid and dry filter device.
4. according to claim 1 or 2 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, be provided with the fluid reservoir of dry filter in described, it is characterized in that: fluid reservoir by circular-arc upper and lower covers, in be provided with dry filter cylindrical tube form; Fluid reservoir loam cake center is provided with an axle center and passes the woven hose that dry filter extends to 0.5 to 1 centimeter place, fluid reservoir bottom, on cover and also be provided with two connectors and a connector that is connected with connector three that are connected with passage two with choke valve passage one; The center of fluid reservoir lower cover be provided with one fixedly usefulness screw and to be provided with one be the big annular fangs that is used for balance of lower cover diameter 2/3rds; In be provided with the cylindrical tube of dry filter, the dry filter part is fixed on dry sorbing material by two stainless steel screen packs the position more than 1/2nd of cylindrical tube.
5. according to claim 1 or 2 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, do not establish the fluid reservoir of dry filter in described, it is characterized in that: fluid reservoir is made up of circular-arc upper and lower covers and cylindrical tube; The center of fluid reservoir loam cake is provided with a visor, also is provided with two connectors and a connector that is connected with connector three that are connected with passage two with choke valve passage one; The center of fluid reservoir lower cover be provided with one fixedly usefulness screw and to be provided with one be the big annular fangs that is used for balance of lower cover diameter 2/3rds; The cylindrical tube tube wall is provided with a Z type woven hose.
6. according to claim 1 or 4 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, be provided with the woven hose on the fluid reservoir of dry filter in described, it is characterized in that: be provided with a base directly over the woven hose, be provided with a visor directly over the base, a side of base also is provided with a connector that is connected with valve chamber two.
7. according to claim 1 or 5 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, do not establish the Z type woven hose of establishing on the fluid reservoir tubing string of dry filter in described, it is characterized in that: place interior half of fluid reservoir to extend near 0.5 to 1 centimeter place, fluid reservoir bottom, what place the fluid reservoir outside is and the device for drying and filtering tube connector.
8. according to claim 1 or 3 described a kind of throttling arrangements that are applied to heat pump hot water air conditioning, described two-way heating power expansion valve valve body, its feature: can also be arranged on side of valve body under the woven hose connector of valve chamber two and fluid reservoir not only can be located at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142614.9A CN103206818B (en) | 2013-04-23 | 2013-04-23 | Throttling device applied to heat pump hot water air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310142614.9A CN103206818B (en) | 2013-04-23 | 2013-04-23 | Throttling device applied to heat pump hot water air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103206818A true CN103206818A (en) | 2013-07-17 |
| CN103206818B CN103206818B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310142614.9A Expired - Fee Related CN103206818B (en) | 2013-04-23 | 2013-04-23 | Throttling device applied to heat pump hot water air conditioner |
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| CN (1) | CN103206818B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799499A (en) * | 1995-09-27 | 1998-09-01 | Fujikoki Corporation | Combined unit of expansion valve and reservoir tank |
| CN2901160Y (en) * | 2006-01-27 | 2007-05-16 | 冯明春 | Multifunction air source heat pump water heater |
| CN201028869Y (en) * | 2007-04-02 | 2008-02-27 | 冯文波 | Improved structure of multifunctional air source heat pump water heater |
| CN101566408A (en) * | 2009-06-11 | 2009-10-28 | 浙江大学 | Indirect-expansion multifunctional solar energy auxiliary air condition system |
| CN101592418A (en) * | 2009-06-26 | 2009-12-02 | 合肥天鹅制冷科技有限公司 | Water source heating, air-conditioning, hot water three-way set |
| CN201387143Y (en) * | 2009-02-04 | 2010-01-20 | 张茂勇 | High-temperature energy-saving water heater device for low-temperature air source heat pump with storing and dividing device |
| CN102032728A (en) * | 2010-12-09 | 2011-04-27 | 东南大学 | Device for automatically adjusting flux of refrigeration working medium |
| CN203258935U (en) * | 2013-04-23 | 2013-10-30 | 雷宜东 | Throttling device for heat pump hot water air conditioner |
-
2013
- 2013-04-23 CN CN201310142614.9A patent/CN103206818B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799499A (en) * | 1995-09-27 | 1998-09-01 | Fujikoki Corporation | Combined unit of expansion valve and reservoir tank |
| CN2901160Y (en) * | 2006-01-27 | 2007-05-16 | 冯明春 | Multifunction air source heat pump water heater |
| CN201028869Y (en) * | 2007-04-02 | 2008-02-27 | 冯文波 | Improved structure of multifunctional air source heat pump water heater |
| CN201387143Y (en) * | 2009-02-04 | 2010-01-20 | 张茂勇 | High-temperature energy-saving water heater device for low-temperature air source heat pump with storing and dividing device |
| CN101566408A (en) * | 2009-06-11 | 2009-10-28 | 浙江大学 | Indirect-expansion multifunctional solar energy auxiliary air condition system |
| CN101592418A (en) * | 2009-06-26 | 2009-12-02 | 合肥天鹅制冷科技有限公司 | Water source heating, air-conditioning, hot water three-way set |
| CN102032728A (en) * | 2010-12-09 | 2011-04-27 | 东南大学 | Device for automatically adjusting flux of refrigeration working medium |
| CN203258935U (en) * | 2013-04-23 | 2013-10-30 | 雷宜东 | Throttling device for heat pump hot water air conditioner |
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| CN103206818B (en) | 2015-04-08 |
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