CN201429274Y - Three-propose machine of water source heating, air conditioning and hot water - Google Patents
Three-propose machine of water source heating, air conditioning and hot water Download PDFInfo
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- CN201429274Y CN201429274Y CN2009201861002U CN200920186100U CN201429274Y CN 201429274 Y CN201429274 Y CN 201429274Y CN 2009201861002 U CN2009201861002 U CN 2009201861002U CN 200920186100 U CN200920186100 U CN 200920186100U CN 201429274 Y CN201429274 Y CN 201429274Y
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Abstract
A three-propose machine of water source heating, air conditioning and hot water is characterized in that the asymmetric phase-change rate of the magnitude difference between heat exchangers connectedin parallel is formed through the driving force on the switch secondary refrigerant side and the guiding of a clack valve of the cooling medium side, thereby a magnetic valve switch cooling medium loop is completely replaced, and the five functions of heating, air-conditioning, hot water, air-conditioning and hot water (common type /energy-saving type) and the like are realized through the mode with simpler structure, lower cost, more reliable operation and higher efficiency. The machine satisfies the natural law of govern by doing nothing, completely avoids the hidden dangers of lacking fluorin of the heat exchangers during operation caused by halting the heat exchangers and then accumulating the cooling medium in existing three-propose machines, and is convenient to enable the product tobe a household electrical appliance.
Description
(1) technical field
The present invention relates to a kind of water source heating, air-conditioning, hot water three-way set.
(2) background technology
The Chinese invention patent " warming, air conditioning+hot water machine " of the power that obtains (obtain the power patent No.: ZL200410038964.1),
1, water loops needs 1 electric T-shaped valve, and the refrigerant loop needs 2 magnetic valves, thereby the system initial cost of making reduces, and control is simplified;
2, summer, spring and autumn, winter, severe cold adopt respectively: refrigerating/heat pump-air-conditioning+hot water circuit, the circulation of air-water heat-pump hot-water, the circulation of air-water heat pump heating, the circulation of refrigeration-air-conditioning, optimize the method for operation for 4 kinds and satisfy heating, air-conditioning, hot water three functional requirements, achieve whole year operation, and operational efficiency is the highest all the time, and the initial cost+running cost in 20 years of its operation reduces by 21.4～43.6% than air-conditioning+electric heater system;
3, cascade heat pump: turn down heating, the hot water circuit upper limit water temperature of environment below-7 ℃ from control program, make it run on-7～-15 ℃ of environment, realize that the heat pump severe cold heats; And this moment, the Traditional Geomantic split air conditioner must be shut down, drove the heating of wind dish by electrothermal furnace and special-purpose circulating pump thereof fully;
4, the little temperature difference and direct heat transfer: circulating pump and the heat exchanger of using air conditioner when heat pump prepares hot water, thereby guarantee under the prerequisite of hot water heating capacity increase 50%, keep the little temperature difference and direct heat transfer by significantly improving rate of circulating flow, to obtain higher hot water heating performance coefficient;
5, direct current hot water: it is hot mode that the little temperature difference and direct heat transfer technology make the condition of being supplied with of hot water take, thereby exempts or reduce the boiler capacity;
6, go up level pressure behind water and the pump: the electric T-shaped valve that confluxes of using air-conditioning and hot water function switching in the filling pipe end of boiler and the system, level pressure behind water and the pump in the realization, thereby pressure-reducing valve, the expansion drum of air conditioner had both been saved, make the maximal pressure force of whole system be no more than water pressure again, to improve system reliability;
7, kill two birds with one stone: hot water storage tank has the expansion tank function concurrently during water on having, have the elevated tank function when supreme water concurrently.
Optimize the method for operation for 4 kinds and make its whole year operation; Optimize regenerator temperature and cascade heat pump are set, make its temperature that conforms-15～+ 43 ℃; Move 20 years initial cost+running costs and reduce by 20～45% than prior art.Yet there is following point in this air source three-way set in actual motion:
Adopt 3 heat exchangers and 2 refrigerant side magnetic valves, with when realizing multi-functional switching, the coolant path of the inactive heat exchanger of sealing; It causes defective as follows: air-side heat exchanger is because its refrigerant side cavity volume is bigger, if therefore function is sealed by the liquid way solenoid valve after switching, and in parallel with another condenser; Then compressor can constantly charge gaseous coolant to it, when temperature is low, will cause wherein constantly having condensate liquid to accumulate, thereby makes another parallel condensing device lack fluorine gradually, can't realize reliable running.
Owing to be air source three-way set, thereby can't be that thermal source is realized heating, air-conditioning, hot water three-purpose purpose with water.
(3) summary of the invention
The objective of the invention is to want the advantage of comprehensive warming, air conditioning+hot water machine, improve its weak point, when providing a kind of function to move, need not water source heating, air-conditioning, hot water three-way set that refrigerant side magnetic valve switches.
The technical solution used in the present invention, promptly water source heating, air-conditioning, hot water three-way set as shown in Figure 1, wherein: the 1-compressor; The 2-high-voltage switch gear; The 3-four-way change-over valve; 4-water source evaporator; The 5-check-valves; The 6-device for drying and filtering; The 7-expansion valve; The 8-evaporator; The 9-muffler; The 10-gas-liquid separator; The 11-low tension switch; 12-triple valve group; The 13-circulating pump; The 14-non-return valve; The 15-fan coil; The 16-boiler; The 17-safety valve; The 18-electric heater; The 19-air bleeding valve; The 20-filter; 21-high pressure reservoir; The 22-auxiliary condenser; The 23-auxiliary circulating pump; The threeway of 24-function; 25-exports threeway; 26-import threeway; The 27-water pump; The 28-magnetic valve.
According to water source heating, air-conditioning, the hot water three-way set shown in the accompanying drawing 1: it forms the water-water heat pump loop by compressor 1, high-voltage switch gear 2, four-way change-over valve 3, water source evaporator 4, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, evaporator 8 refrigerant sides, muffler 9, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1;
Auxiliary condenser 22 refrigerant sides are in parallel by check-valves 5 and threeway and water source evaporator 4, to form the water-water heat pump branch road;
Evaporator 8 refrigerating medium side outlets connect air bleeding valve 19, function threeway 24 by outlet conduit, and inlet pipeline connects triple valve group 12, circulating pump 13, non-return valve 14, evaporator 8 refrigerating medium side-entrances, form cooling/hot branch road;
Import threeway 26 connects auxiliary circulating pump 23, non-return valve 14, auxiliary condenser 22 refrigerating medium sides, air bleeding valve 19, outlet threeway 25 by pipeline, forms boiler 16 heat supply branch roads;
Function threeway 24 connects fan coil 15, filter 20, triple valve group 12 by pipeline, forms fan coil 15 branch roads;
Function threeway 24 connects outlet threeway 25, boiler 16, threeway, filter 20, import threeway 26, triple valve group 12 by pipeline, forms boiler 16 branch roads;
The upper hose of boiler 16 forms moisturizing, level pressure branch road by filter 20, non-return valve 14, safety valve 17.
Water source evaporator 4 is set up it and is driven water pump 27.
The hot water outlet of boiler 16 is provided with magnetic valve 28, and by low tension switch 11 controls that are provided with on moisturizing, the level pressure branch road.
Insert high pressure reservoir 21 between check-valves 5 and the device for drying and filtering 6.
Between the coil pipe of fan coil 15 and air outlet, be provided for the auxiliary electric heater 18 that adds hot-air.
Evaporator 8, auxiliary condenser 22 and water source evaporator 4 are refrigerant-refrigerating medium heat exchangers of shell and tube exchanger, plate type heat exchanger, plate-fin heat exchanger, double pipe heat exchanger, coil exchanger.
Operation principle of the present invention 1 is described as follows in conjunction with the accompanying drawings:
1, water-water heat pump heating circulation: compressor 1 starts, to drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, muffler 9, evaporator 8 refrigerant sides, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, threeway, water source evaporator 4, threeway, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1, constitute the water-water heat pump circulation; With the low level water source heat energy pump of gathering in the water source evaporator 4 to evaporator 8.Circulating pump 13 starts in advance, to drive refrigerating medium flow through non-return valve 14, evaporator 8 refrigerating medium sides, air bleeding valve 19, function threeway 24, fan coil 15, filter 20, triple valve group 12, circulating pump 13, constitute the heating circulation, so that the high-order condensation heat release in the evaporator 8 is flowed to fan coil 15 systems.
2, refrigeration-air-conditioning circulation: compressor 1 starts, to drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, threeway, water source evaporator 4, threeway, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, evaporator 8 refrigerant sides, muffler 9, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1, constitute kind of refrigeration cycle, with the low level room air heat energy pump that extracts in the evaporator 8 to water source evaporator 4, drive by its water pump 27 and to discharge to environmental water systems.Circulating pump 13 starts in advance, to drive refrigerating medium flow through non-return valve 14, evaporator 8 refrigerating medium sides, air bleeding valve 19, function threeway 24, fan coil 15, filter 20, triple valve group 12, circulating pump 13, constitute the air-conditioning circulation, so that the evaporation cold in the evaporator 8 is flowed to fan coil 15 systems.
3, water-water heat pump hot water circuit: compressor 1 starts, to drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, muffler 9, evaporator 8 refrigerant sides, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, threeway, water source evaporator 4, threeway, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1, constitute the water-water heat pump circulation; With the low level water source heat energy pump of gathering in the water source evaporator 4 to evaporator 8.Circulating pump 13 starts in advance, to drive refrigerating medium flow through non-return valve 14, evaporator 8 refrigerating medium sides, air bleeding valve 19, function threeway 24, outlet threeway 25, boiler 16, threeway, filter 20, import threeway 26, triple valve group 12, circulating pump 13, constitute hot water circuit, so that the high-order condensation heat release in the evaporator 8 is flowed to boiler 16.
4, plain edition refrigerating/heat pump-air-conditioning+hot water circuit: compressor 1 starts, to drive refrigerant flow through high-voltage switch gear 2, four-way change-over valve 3, threeway, auxiliary condenser 22 refrigerant sides, check-valves 5, threeway, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, evaporator 8 refrigerant sides, muffler 9, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1, constitute the refrigerating/heat pump circulation of water-water, with the low level room air heat energy pump that extracts in the evaporator 8 to auxiliary condenser 22, discharge to circulating hot water.Circulating pump 13 starts in advance, to drive refrigerating medium flow through non-return valve 14, evaporator 8 refrigerating medium sides, air bleeding valve 19, function threeway 24, fan coil 15, filter 20, triple valve group 12, circulating pump 13, constitute the air-conditioning circulation, so that the evaporation cold in the evaporator 8 is flowed to fan coil 15 systems.Auxiliary circulating pump 23 starts in advance, to drive refrigerating medium flow through non-return valve 14, auxiliary condenser 22 refrigerating medium sides, air bleeding valve 19, outlet threeway 25, boiler 16, threeway, filter 20, import threeway 26, auxiliary circulating pump 23, constitute hot water circuit, so that the high-order condensation heat release in the auxiliary condenser 22 is flowed to boiler 16.
5, energy-saving refrigerating/heat pump-air-conditioning+hot water circuit: compressor 1 starts, to drive the refrigerant high-voltage switch gear 2 of flowing through, four-way change-over valve 3, auxiliary condenser 22 refrigerant sides and check-valves 5 and water source evaporator 4 by 2 threeway parallel connections, check-valves 5, device for drying and filtering 6, expansion valve 7, check-valves 5, evaporator 8 refrigerant sides, muffler 9, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, compressor 1, constitute the refrigerating/heat pump circulation of water-water+water, with the low level room air heat energy pump that extracts in the evaporator 8 to auxiliary condenser 22 and water source evaporator 4 in parallel, to discharge to circulating hot water and environmental water systems simultaneously.Circulating pump 13 starts in advance, to drive refrigerating medium flow through non-return valve 14, evaporator 8 refrigerating medium sides, air bleeding valve 19, function threeway 24, fan coil 15, filter 20, triple valve group 12, circulating pump 13, constitute the air-conditioning circulation, so that the evaporation cold in the evaporator 8 is flowed to fan coil 15 systems.Auxiliary circulating pump 23 starts in advance, to drive refrigerating medium flow through non-return valve 14, auxiliary condenser 22 refrigerating medium sides, air bleeding valve 19, outlet threeway 25, boiler 16, threeway, filter 20, import threeway 26, auxiliary circulating pump 23, constitute hot water circuit, so that the high-order condensation heat release in the auxiliary condenser 22 is flowed to boiler 16; Water pump 27 starts in advance, and the drive environment water source water source evaporator 4 of flowing through is to flow to environmental water systems to the high-order condensation heat release in it.
Compared with prior art, design feature of the present invention is as follows:
1, during heating: the check-valves 5 of auxiliary condenser 22 refrigerant sides stops liquid refrigerants to its feed flow, and 1 pair of auxiliary condenser 22 of compressor is evacuated to pressure balance simultaneously, therefore can prevent under the prerequisite of its hydrops, realizes heating function;
2, during air-conditioning: utilize in the parallel condensing device, the water pump 27 of water source evaporator 4 is opened, and the auxiliary circulating pump 23 of auxiliary condenser 22 is shut down, the magnitude difference of the asymmetric heat-transfer behavior that forms, and the self-balancing of parallel condensing device refrigerant side import and export pressure; Can in auxiliary condenser 22,, also can realize air conditioning function by under the check-valves 5 timely prerequisites of discharging even a small amount of condensation hydrops is arranged;
3, during hot water: check-valves 5 stops liquid refrigerants to auxiliary condenser 22 feed flows, and 1 pair of auxiliary condenser 22 of compressor is evacuated to pressure balance simultaneously, therefore can realize hot water function under the prerequisite that prevents auxiliary condenser 22 hydrops;
4, during plain edition air-conditioning+hot water: utilize in the parallel condensing device, the auxiliary circulating pump 23 of auxiliary condenser 22 is opened, the water pump 27 of water source evaporator 4 is shut down the magnitude difference of the asymmetric heat-transfer behavior that forms, and the self-balancing of parallel condensing device refrigerant side import and export pressure; Can in water source evaporator 4,, also can realize air-conditioning+hot water function by under the timely prerequisite of discharging of liquid pipe even a small amount of condensation hydrops is arranged;
5, during energy-saving air conditioning+hot water: utilize in the parallel condensing device, the auxiliary circulating pump 23 of auxiliary condenser 22 and the water pump 27 of water source evaporator 4 are opened simultaneously, to reduce condensation temperature and pressure significantly, reduce the compressor power consumption, improve refrigerating capacity and systematic function coefficient, can under the prerequisite that auxiliary condenser 22 and water source evaporator 4 are used simultaneously, realize air-conditioning+hot water function.
Therefore compared with prior art, technical advantage of the present invention is as follows:
1, exempts solenoid control in the refrigerant loop at all, eliminate the hidden danger of two device inner product liquid storage attitude refrigerants, transfer large-scale production for the three-way set technology to from experimental stage, and really move towards market, have decisive significance;
2, exempt refrigerant circuit electromagnetic valve at all, not only reduce manufacturing cost, also reduce the ` switching value output of single-chip microcomputer, make system's simplification, electrification of domestic, scale, and improve operational reliability;
3, exempt refrigerant circuit electromagnetic valve at all, the heat exchangers in parallel of make stopping using, or be in evacuated, or be in breakthrough status, or be in the parallel running state, thus to the heat exchangers in parallel of normal operation, all have no adverse effect; In addition, the inactive heat exchanger in parallel with condenser, for air-conditioning and two kinds of functions of plain edition air-conditioning+hot water, existing is the useful influence that increases the condensing heat-exchange amount, reduces the compressor power consumption;
4, air-conditioning+hot water function has plain edition and energy-saving two kinds of forms concurrently, and when wherein energy-saving used for the high-temperature-hot-water operating mode, it was significant significantly to reduce the compressor power consumption.
The present invention is by switch refrigerating medium side drive power, be equipped with dredging of refrigerant side check-valves, form the asymmetric transformation rate of magnitude difference between the heat exchangers in parallel, thereby basic replacement of solenoid valve switch refrigerant loop, the mode simpler with structure, that cost is cheaper, operation is more reliable, efficient more improves realizes heating, air-conditioning, hot water, air-conditioning+hot water 5 kinds of functions such as (plain editions/energy-saving).Meet the law of nature that govern by doing nothing that goes against nature in " Dujiang weir ", the basic heat exchanger of stopping using in the existing three-way set of exempting accumulates cooling medium liquid, causes moving the hidden danger that heat exchanger lacks fluorine, is convenient to the product electrification of domestic.
(4) description of drawings
Accompanying drawing 1 is a system flow chart of the present invention.
(5) specific embodiment
The embodiment of the water source heating that the present invention proposes, air-conditioning, hot water three-way set as shown in Figure 1, now be described as follows: according to water source heating, air-conditioning, the hot water three-way set shown in the accompanying drawing 1, it is connected high-voltage switch gear 2, four-way change-over valve 3, the heat exchange area 1.5m of same diameter interface in turn by diameter 20mm copper pipe by the vortex compressor 1 of electrical power 4.0kW
2The board-like water source of copper brazing evaporator 4 in the diameter 20mm import of R22, the check- valves 5,3 that its diameter 10mm outlet connects the same diameter interface in turn by copper pipe again raises and presses reservoirs 21, device for drying and filtering 6, electric expansion valve 7, check-valves 5, heat exchange area 1.5m
2The R22 import of copper brazing plate evaporation/condenser 8, its diameter 20mm outlet connects muffler 9, four-way change-over valve 3, gas-liquid separator 10, low tension switch 11, the compressor 1 of same diameter interface more in turn by copper pipe, form the water-water heat pump loop; Heat exchange area 1.5m
2Check-valves 5 and the threeway of R22 side diameter 10mm outlet copper pipe by the same diameter interface of the board-like auxiliary condenser 22 of copper brazing be in parallel with water source evaporator 4, with formation water-water heat pump branch road; Evaporator 8 refrigerating medium side outlets connect air bleeding valve 19, function threeway 24 by diameter 24mm outlet steel pipe, and inlet pipeline connects electric three passes ball valve 12, flow 2m by diameter 24mm steel pipe
3/ h, lift 14mH
2The circulating pump 13 of O, non-return valve 14, evaporator 8 refrigerating medium side-entrances form cooling/hot branch road; Import threeway 26 is by diameter 24mm steel pipe connection traffic 2m
3/ h, lift 14mH
2The auxiliary circulating pump 23 of O, non-return valve 14, auxiliary condenser 22 refrigerating medium sides, air bleeding valve 19, outlet threeway 25 form boiler 16 heat supply branch roads; Function threeway 24 forms fan coil 15 branch roads by diameter 24mm steel pipe be connected in parallel fan coil 15, filter 20, the triple valve 12 of 5 complete hot cold 3.7kW/ heating load 6.3kW; Function threeway 24 connects 25,1 thick 1.2mm corrosion resistant plate of outlet threeway by diameter 24mm steel pipe makes/boiler 16 of the long 800mm of diameter 300mm/, threeway, filter 20, import threeway 26, triple valve 12, and formation boiler 16 branch roads; The diameter 15mm of boiler 16 goes up the water steel pipe by filter 20, non-return valve 14, safety valve 17, forms moisturizing, level pressure branch road.Water source evaporator 4 is set up its flow 2m
3/ h, lift 14mH
2The driving water pump 27 of O, electrical power 260W.The diameter 15mm hot water outlet of boiler 16 is provided with diameter 15mm, stainless steel magnetic valve 28, and by diameter 15mm low tension switch 11 controls that are provided with on diameter 15mm moisturizing, the level pressure branch road.Between the coil pipe of fan coil 15 and air outlet, be provided for the auxiliary 3.7kW electric heater 18 that adds hot-air.
The embodiment of the invention during 45 ℃ of periodical feeding temperature, can realize that heating/hot water heats power 22.25kW under the condition of 15 ℃ of environmental water systems temperature, heat pump heat supply coefficient 5.0, total input electric power 4.45kW is apart from unit 1m place operation noise 59dB, operating weight 100kg; When 45 ℃ of 7 ℃ of air-conditioning periodical feeding temperature, hot water circuit supply water temperature, can realize that air conditioner refrigerating power 12.0kW, hot water heat power 15.5kW, air-conditioning+hot-water combined supplying coefficient 6.21, total input electric power 4.43kW.
Claims (8)
1, a kind of water source heating, air-conditioning, hot water three-way set, it is by compressor (1); High-voltage switch gear (2); Four-way change-over valve (3); Water source evaporator (4); Check-valves (5); Device for drying and filtering (6); Expansion valve (7); Evaporator (8); Muffler (9); Gas-liquid separator (10); Low tension switch (11); Triple valve group (12); Circulating pump (13); Non-return valve (14); Fan coil (15); Boiler (16); Safety valve (17); Electric heater (18); Air bleeding valve (19); Filter (20); High pressure reservoir (21); Auxiliary condenser (22); Auxiliary circulating pump (23); Function threeway (24); Outlet threeway (25); Import threeway (26); Water pump (27); Magnetic valve (28) is formed, it is characterized in that: compressor (1), high-voltage switch gear (2), four-way change-over valve (3), water source evaporator (4), check-valves (5), device for drying and filtering (6), expansion valve (7), check-valves (5), evaporator (8) refrigerant side, muffler (9), four-way change-over valve (3), gas-liquid separator (10), low tension switch (11), compressor (1), form the water-water heat pump loop; Auxiliary condenser (22) refrigerant side is in parallel by check-valves (5) and threeway and water source evaporator (4), to form the water-water heat pump branch road; Evaporator (8) refrigerating medium side outlet connects air bleeding valve (19), function threeway (24) by outlet conduit, and inlet pipeline connects triple valve group (12), circulating pump (13), non-return valve (14), evaporator (8) refrigerating medium side-entrance, forms cooling/hot branch road; Import threeway (26) connects auxiliary circulating pump (23), non-return valve (14), auxiliary condenser (22) refrigerating medium side, air bleeding valve (19), outlet threeway (25) by pipeline, forms boiler (16) heat supply branch road; Function threeway (24) connects fan coil (15), filter (20), triple valve group (12) by pipeline, forms fan coil (15) branch road; Function threeway (24) connects outlet threeway (25), boiler (16), threeway, filter (20), import threeway (26), triple valve group (12) by pipeline, forms boiler (16) branch road; The upper hose of boiler (16) forms moisturizing, level pressure branch road by filter (20), non-return valve (14), safety valve (17).
2, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: water source evaporator (4) is set up it and is driven water pump (27).
3, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: the hot water outlet of boiler (16) is provided with magnetic valve (28), and by low tension switch (11) control that is provided with on moisturizing, the level pressure branch road.
4, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: expansion valve (7) is electric expansion valve (7), heating power expansion valve (7), capillary (7), restricting orifice (7), or structure parallel with one another (7) therebetween.
5, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: insert high pressure reservoir (21) between check-valves (5) and the device for drying and filtering (6).
6, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: triple valve group (12) is 1 triple valve, or is connected by 2 two-port valves and 1 threeway and forms.
7, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: between the coil pipe of fan coil (15) and air outlet, be provided for the auxiliary electric heater (18) that adds hot-air.
8, according to the described water source heating of claim 1, air-conditioning, hot water three-way set, it is characterized in that: evaporator (8), auxiliary condenser (22) and water source evaporator (4) are the refrigerant-refrigerating medium heat exchangers of shell and tube exchanger, plate type heat exchanger, plate-fin heat exchanger, double pipe heat exchanger, coil exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201861002U CN201429274Y (en) | 2009-06-26 | 2009-06-26 | Three-propose machine of water source heating, air conditioning and hot water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201861002U CN201429274Y (en) | 2009-06-26 | 2009-06-26 | Three-propose machine of water source heating, air conditioning and hot water |
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| CN201429274Y true CN201429274Y (en) | 2010-03-24 |
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| CN2009201861002U Expired - Fee Related CN201429274Y (en) | 2009-06-26 | 2009-06-26 | Three-propose machine of water source heating, air conditioning and hot water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743145A (en) * | 2014-01-22 | 2014-04-23 | 哈尔滨商业大学 | Double-energy-source parallel indirect refrigeration system and double-energy-source parallel indirect refrigeration method |
| CN106766340A (en) * | 2017-03-24 | 2017-05-31 | 合肥天鹅制冷科技有限公司 | Double-source heat pump hot water machine |
-
2009
- 2009-06-26 CN CN2009201861002U patent/CN201429274Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743145A (en) * | 2014-01-22 | 2014-04-23 | 哈尔滨商业大学 | Double-energy-source parallel indirect refrigeration system and double-energy-source parallel indirect refrigeration method |
| CN103743145B (en) * | 2014-01-22 | 2015-09-16 | 哈尔滨商业大学 | Dual-energy source indirect refrigeration system in parallel and method |
| CN106766340A (en) * | 2017-03-24 | 2017-05-31 | 合肥天鹅制冷科技有限公司 | Double-source heat pump hot water machine |
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Addressee: Hefei Swan Refrigerator Technology Co., Ltd. Document name: Notification to Pay the Fees |
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Addressee: Hefei Swan Refrigerator Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
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