CN101476774B - Double-heat source heat pump water heater with air source and water source - Google Patents

Double-heat source heat pump water heater with air source and water source Download PDF

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Publication number
CN101476774B
CN101476774B CN200810162193A CN200810162193A CN101476774B CN 101476774 B CN101476774 B CN 101476774B CN 200810162193 A CN200810162193 A CN 200810162193A CN 200810162193 A CN200810162193 A CN 200810162193A CN 101476774 B CN101476774 B CN 101476774B
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water
tube evaporator
double
heat
electromagnetic valve
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CN101476774A (en
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黄道德
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Zhejiang Ama & Hien Technology Co Ltd
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Zhejiang Ama & Hien Technology Co Ltd
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Abstract

The invention discloses an air-water dual heat source heat pump water heater, which comprises a main machine, a heat-storage and preservation water tank, a controller, an environment temperature controller, a coil temperature sensor, a water tank temperature sensor, a high-water-level switch, a low-water-level switch, a target-flow switch, a water inflow electromagnetic valve, a circulating water pump, a compressor, a motor, an electronic expansion valve, a double-pipe evaporator circuit electromagnetic valve, a fin tube evaporator circuit electromagnetic valve, a circulating hot water pipe, a tube-in-tube condenser and a four-way valve, wherein the D port of the four-way valve is connected with the exhaust pipe of the compressor through a high-pressure switch, the C port of the four-way valve is connected with the upper part of a tube-in-tube condenser, the S port of the four-way valve is connected with the air intake of the compressor through a vapor liquid separator and a low-pressure switch, the E port of the four-way valve is connected with the upper part of a double-pipe evaporator and the upper part of a fin tube evaporator, and the tube-in-tube condenser forms a water cooled heat exchanger through a liquid container, a filter, the electronic expansion valve, an axial flow fan blade, a motor and the double-tube evaporator and forms a wind cooled heat exchanger through a fin tube evaporator. The water heater can be used for 24 hours each day all the year around in the north of China.

Description

Air source, water source double heat source heat pump water heater
Technical field
The present invention relates to a kind of Teat pump boiler, be meant a kind of air source, water source double heat source heat pump water heater especially.
Technical background
What generally sell on China Teat pump boiler market at present mainly is two kinds of air source hot pump water heater and water source heat pump water heaters.Under the conventional weather, environment temperature is far above water temperature, produces power that same temperature hot water consumed than low many of water source heat pump water heater.And in north China; Cold season in winter, environment temperature was all about-15 ℃; And water temperature generally remains on more than 10 ℃, and north of china in winter generally continued 4 months, produces power that same temperature hot water consumed than high many of water source heat pump water heater.Though in spring, summer, three seasons of autumn; Air source hot pump water heater still can satisfy instructions for use in the north, but in the winter of cold, but because consumed power is too high; Make the people forbidding; That is to say that air source hot pump water heater can not satisfy annual instructions for use in the north, use and energy-conservation aspect receive great restriction, the northerly popularization of air source hot pump water heater is faced a severe test.To this problem, be necessary net for air-source heat pump units is transformed, guarantee that net for air-source heat pump units can use in the north in all weather of the year.
The inventor once designed a kind of " air source hot pump water heater " (ZL2006100496869); Comprise main frame, heat storing and heat preserving water tank and controller; Main frame is combined with compact structure form very by finned tube evaporator, auxiliary defrost heat exchanger, vapour liquid separator, compressor, double-tube heat exchanger, reservoir, electric expansion valve, reversal valve, magnetic valve, check valve and relevant refrigeration accessory; Double-tube heat exchanger is connected with refrigerant line, hot water circulating pipeline respectively, makes cold-producing medium and water carry out heat exchange; Adopt external water circulating pump that the circulation power of hot-water return is provided; The heat storing and heat preserving water tank adopts nonbearing structure, and water inlet pipe is connected with the running water pipe network through entering water electromagnetic valve; Heat storing and heat preserving water tank upper and lower part is provided with the circulating hot water pipe respectively, and is connected with water circulating pump with double-tube heat exchanger, thereby forms closed hot water circulation loop.It has applied widely, reliability is high, the all-weather hot water supply system of advantage such as energy-conservation.But it only adopts air source.
Summary of the invention
The objective of the invention is to deficiency, existing air source hot pump water heater heat exchange and hot-water supply system are improved, a kind of air source, water source double heat source heat pump water heater of new structure is provided to prior art.
To achieve these goals, the invention has designed a air source, water source double heat source heat pump water heater.It comprises heat storing and heat preserving water tank and controller; Controller adopts Single-chip Controlling; The importation comprises environment temperature controller, coil temperature sensor, water tank temperature sensor, high water level switch, low-water level switch, target stream switch; Output is used to control entering water electromagnetic valve, water circulating pump, compressor, motor, electric expansion valve, casing tube evaporator circuit electromagnetic valve, finned tube evaporator circuit electromagnetic valve; Heat storing and heat preserving water tank upper and lower part is provided with the circulating hot water pipe respectively; The circulating hot water pipe is connected with water circulating pump with double-pipe condenser; Double-pipe condenser, compressor, high-voltage switch gear, low tension switch, vapour liquid separator, cross valve, casing tube evaporator and casing tube evaporator circuit electromagnetic valve, finned tube evaporator and finned tube evaporator circuit electromagnetic valve with reverse not on state characteristic, electric expansion valve, filter, reservoir and pipe arrangement are formed the refrigerant loop of a closure; The finned tube evaporator bottom is provided with finned tube evaporator circuit electromagnetic valve; The casing tube evaporator bottom is provided with casing tube evaporator circuit electromagnetic valve; The heat storing and heat preserving water tank upper connects the water charging system of being made up of running water water inlet pipe and entering water electromagnetic valve; Connect target stream switch between heat storing and heat preserving water tank and the double-pipe condenser; The heat storing and heat preserving water tank upper is established the high water level switch, low-water level switch and water tank temperature sensor are established in the bottom, and cross valve D is to meeting compressor exhaust pipe, C to connecing double-pipe condenser top through high-voltage switch gear, and cross valve S is to meeting compressor air suction mouth, E through vapour liquid separator and low tension switch to connecing casing tube evaporator top and finned tube evaporator top; Double-pipe condenser is formed water cooling heat exchanger through reservoir, filter, electric expansion valve, axial-flow leaf, motor and bushing type evaporimeter, and double-pipe condenser is formed air cooling heat exchanger through reservoir, filter, electric expansion valve, axial-flow leaf, motor and finned tube evaporator.
The invention improves the above-mentioned patented product of the design people's design; In spring, summer, when three seasons of autumn, environment temperature was higher than water temperature, be thermal source with the air, when environment temperature is lower than water temperature in the winter time; With the heating installation backwater is thermal source, makes cold-producing medium and water carry out heat exchange.It is on the basis of air source hot pump water heater; Utilized water temperature in the winter time to be higher than the characteristics of environment temperature; Carry out heat exchange with heating installation or other stable source of water (like industrial wastewater, underground water) as thermal source; Thereby reduced the power consumption of unit effectively, improved the COP value of unit, be a kind of have applied widely, reliability is high, full season, the round-the-clock hot water supply system of advantage such as energy-conservation.
This unit adopts controller that system is controlled automatically, and all control functions are realized by single-chip microcomputer.The user is as long as carry out the switching of " air source " and " water source " on controller, system will carry out switch operating automatically, and is easy to operate.Through to environment temperature, water tank temperature and high and low water level switch to Water Level Control, hot water cyclesystem operates in high water temperature, low power consumpting state all the time, has both saved the energy, has improved the COP value of unit again.In spring, summer, when three seasons of autumn, environment temperature was higher than water temperature, on controller, to select " air source ", finned tube evaporator circuit electromagnetic valve is opened, and casing tube evaporator circuit electromagnetic valve cuts out.The refrigerant liquid of low-temp low-pressure absorbs the refrigerant gas that heat of vaporization in the surrounding air becomes low-temp low-pressure in finned tube evaporator; Through the compressor work done cold-producing medium is compressed into high temperature and high pressure gas, high-temperature high-pressure refrigerant gas gets into double-pipe condenser and water carries out heat exchange.In double-pipe condenser, be condensed into the cryogenic high pressure refrigerant liquid and discharge a large amount of heats, water absorbs the heat of its release and temperature constantly rises, to reach the purpose that produces hot water.When environment temperature was lower than water temperature in the winter time, finned evaporator circuit electromagnetic valve cut out, and casing tube evaporator circuit electromagnetic valve is opened, and from the heating installation backwater, absorbed heat by casing tube evaporator and replaced finned tube evaporator to carry out heat exchange according to aforesaid way.Thereby full season, round-the-clock water supply have been realized.At transition season; Air source heat pump system still the frosting phenomenon might occur; Unit can detect the frosting situation automatically, and when reaching the defrosting condition, refrigeration system is then according to carrying out heat exchange in the other direction; High-temperature high-pressure refrigerant gas gets into finned tube evaporator and is condensed into high-temperature high-pressure refrigerant liquid and discharges a large amount of heats, reaches the purpose of defrosting.
Description of drawings
Fig. 1 is the structural representation of present embodiment.
Among the figure: 1, heat storing and heat preserving water tank, 2, the circulating hot water pipe, 3, water circulating pump, 4, double-pipe condenser, 5, compressor; 6, high-voltage switch gear, 7, low tension switch, 8, vapour liquid separator, 9, cross valve, 10, finned tube evaporator; 11, axial-flow leaf, 12, motor, 13, casing tube evaporator, 14, finned tube evaporator circuit electromagnetic valve; 15, casing tube evaporator circuit electromagnetic valve, 16, electric expansion valve, 17, filter, 18, reservoir.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing thereof further elaboration is done in the invention.
Referring to Fig. 1; A kind of air source, water source double heat source heat pump water heater; Comprise heat storing and heat preserving water tank 1 and controller; Controller adopts Single-chip Controlling; The importation comprises environment temperature controller, coil temperature sensor, water tank temperature sensor, high water level switch, low-water level switch, target stream switch; Output is used to control entering water electromagnetic valve, water circulating pump 3, compressor 5, motor 12, electric expansion valve 16, casing tube evaporator circuit electromagnetic valve 15, finned tube evaporator circuit electromagnetic valve 14; Heat storing and heat preserving water tank upper and lower part is provided with the circulating hot water pipe respectively; Circulating hot water pipe 2 is connected with water circulating pump 3 with double-pipe condenser 4; Double-pipe condenser 4, compressor 5, high-voltage switch gear 6, low tension switch 7, vapour liquid separator 8, cross valve 9, casing tube evaporator 13 and casing tube evaporator circuit electromagnetic valve 15, finned tube evaporator 10 and finned tube evaporator circuit electromagnetic valve 14 with reverse not on state characteristic, electric expansion valve 16, filter 17, reservoir 16 and pipe arrangement are formed the refrigerant loop of a closure; Finned tube evaporator 10 bottoms are provided with finned tube evaporator circuit electromagnetic valve 14; Casing tube evaporator 13 bottoms are provided with casing tube evaporator circuit electromagnetic valve 15; Heat storing and heat preserving water tank 1 top connects the water charging system of being made up of running water water inlet pipe and entering water electromagnetic valve, connects target stream switch between heat storing and heat preserving water tank 1 and the double-pipe condenser 4, and the high water level switch is established on heat storing and heat preserving water tank 1 top, low-water level switch and water tank temperature sensor are established in the bottom; Cross valve 9D is to meeting compressor 5 blast pipes, C through high-voltage switch gear 6 to connecing double-pipe condenser 4 tops; Cross valve 9S is to meeting compressor 5 air entries, E to connecing casing tube evaporator 13 tops and finned tube evaporator 10 tops through vapour liquid separator 8 and low tension switch 7, double-pipe condenser 4 is formed water cooling heat exchanger through reservoir 18, filter 17, electric expansion valve 16, axial-flow leaf 11, motor 12 and bushing type evaporimeter 13, and double-pipe condenser 4 is formed air cooling heat exchanger through reservoir 18, filter 17, electric expansion valve 16, axial-flow leaf 11, motor 12 and finned tube evaporator 10.
The kind of refrigeration cycle process is as shown in Figure 1 to circulate along the solid arrow direction.When selecting " air source "; Casing tube evaporator circuit electromagnetic valve magnetic valve 15 breaks off; Finned tube evaporator circuit electromagnetic valve 14 closures, cold-producing medium is compressed into high temperature and high pressure gas through compressor 5 and gets into double-pipe condenser 4 through cross valve 9, in double-pipe condenser 4, carries out heat exchange with recirculated water water is heated; Cold-producing medium is condensed into the cryogenic high pressure flow of liquid through filter 17 simultaneously; Become low-temp low-pressure liquid to get into finned tube evaporator 10 through electric expansion valve 16 throttlings, in finned tube evaporator 10, carry out heat exchange and flash to high-temperature high-pressure refrigerant gas, be back to compressor 5 through cross valve 9 and vapour liquid separator 8 more at last with compulsory air stream; When selecting " water source "; Casing tube evaporator circuit electromagnetic valve magnetic valve 15 closures; Finned tube evaporator circuit electromagnetic valve 14 breaks off, and cold-producing medium is compressed into high temperature and high pressure gas through compressor 5 and gets into double-pipe condenser 4 through cross valve 9, in double-pipe condenser 4, carries out heat exchange with recirculated water water is heated; Cold-producing medium is condensed into the cryogenic high pressure flow of liquid through filter 17 simultaneously; Become low-temp low-pressure liquid to get into casing tube evaporator 13 through electric expansion valve 16 throttlings, carry out heat exchange and flash to high-temperature high-pressure refrigerant gas, be back to compressor 5 through cross valve 9 and vapour liquid separator 8 more at last at casing tube evaporator 13 and heating installation backwater; Form closed cooling cycle system, so again and again recirculated water is heated.
In transition season period, because environment temperature is lower, humidity is high, in the air source heat pump system running, finned tube evaporator 10 surfaces decrease the heat pump heating effect because the water in air steam constantly condenses and causes frosting.Controller makes system get into the defrost program running timely and effectively through parameters such as environment temperature, coil temperature are gathered in real time at this moment.In the process of defrost, cold-producing medium is compressed into high temperature and high pressure gas through compressor 5 and gets into finned tube evaporator 10 through cross valve 9, is condensed into cryogenic high pressure liquid, discharges a large amount of heats simultaneously, is defrosted in finned tube evaporator 10 surfaces.The cryogenic high pressure refrigerant liquid is through electric expansion valve 16 throttlings becoming low-temp low-pressure gas; Get into double-pipe condenser 4 through filter 17 and reservoir 18; Flashing to high-temperature low-pressure gas in double-pipe condenser 4 heat absorption gets into compressor 5 once again through cross valve 9 and compresses; Circulate so again and again, finally reach the purpose of defrosting.

Claims (1)

1. an air source, water source double heat source heat pump water heater; It comprises heat storing and heat preserving water tank (1) and controller; Controller adopts Single-chip Controlling; The importation comprises environment temperature controller, coil temperature sensor, water tank temperature sensor, high water level switch, low-water level switch, target stream switch; Output is used to control entering water electromagnetic valve, water circulating pump (3), compressor (5), motor (12), electric expansion valve (16), casing tube evaporator circuit electromagnetic valve (15), finned tube evaporator circuit electromagnetic valve (14); Heat storing and heat preserving water tank upper and lower part is provided with the circulating hot water pipe respectively; Circulating hot water pipe (2) is connected with water circulating pump (3) with double-pipe condenser (4); Double-pipe condenser (4), compressor (5), high-voltage switch gear (6), low tension switch (7), vapour liquid separator (8), refrigerant loop with the reverse not cross valve of on state characteristic (9), casing tube evaporator (13) and casing tube evaporator circuit electromagnetic valve (15), finned tube evaporator (10) and finned tube evaporator circuit electromagnetic valve (14), electric expansion valve (16), filter (17), reservoir (16) and pipe arrangement composition one closure; Finned tube evaporator (10) bottom is provided with finned tube evaporator circuit electromagnetic valve (14); Casing tube evaporator (13) bottom is provided with casing tube evaporator circuit electromagnetic valve (15); Heat storing and heat preserving water tank (1) top connects the water charging system of being made up of running water water inlet pipe and entering water electromagnetic valve; Connect target stream switch between heat storing and heat preserving water tank (1) and the double-pipe condenser (4); The high water level switch is established on heat storing and heat preserving water tank (1) top, low-water level switch and water tank temperature sensor are established in the bottom; Cross valve (9) D is to meeting compressor (5) blast pipe, C through high-voltage switch gear (6) to connecing double-pipe condenser (4) top; It is characterized in that: cross valve (9) S is to meeting compressor (5) air entry, E to connecing casing tube evaporator (13) top and finned tube evaporator (10) top through vapour liquid separator (8) and low tension switch (7), double-pipe condenser (4) is formed water cooling heat exchanger through reservoir (18), filter (17), electric expansion valve (16), axial-flow leaf (11), motor (12) and bushing type evaporimeter (13), and double-pipe condenser (4) is formed air cooling heat exchanger through reservoir (18), filter (17), electric expansion valve (16), axial-flow leaf (11), motor (12) and finned tube evaporator (10).
CN200810162193A 2008-11-18 2008-11-18 Double-heat source heat pump water heater with air source and water source Active CN101476774B (en)

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Publication number Priority date Publication date Assignee Title
CN108541183A (en) * 2017-03-01 2018-09-14 双鸿科技股份有限公司 Water-cooled heat radiation module
CN108541183B (en) * 2017-03-01 2020-04-10 双鸿科技股份有限公司 Water-cooled heat radiation module

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