CN103423917A - Air-source central air-conditioning hot water triple-generation heat pump unit - Google Patents

Air-source central air-conditioning hot water triple-generation heat pump unit Download PDF

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CN103423917A
CN103423917A CN2013102882863A CN201310288286A CN103423917A CN 103423917 A CN103423917 A CN 103423917A CN 2013102882863 A CN2013102882863 A CN 2013102882863A CN 201310288286 A CN201310288286 A CN 201310288286A CN 103423917 A CN103423917 A CN 103423917A
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valve
water
hot water
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CN103423917B (en
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秦文选
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HUNAN FUTURA TO ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY ENGINEERING Co Ltd
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Abstract

An air-source central air-conditioning hot water triple-generation heat pump unit comprises a compressor, a solar hot water pump, a hot water return pump, a hot water tank, a hot water solenoid valve, an air-conditioning solenoid valve, a four-way valve, a check valve group I, a case, a fan, a check valve group II, an air-source heat exchanger, an air-conditioning heat exchanger, a filter, an air-conditioning water pump, an energy storage tank, a thermal expansion valve I, a balance throttle pipe, a balance solenoid valve, a thermal expansion valve II, a liquid storage tank, an economizer, a liquid-vapor separator and a connecting line. By action of the balance throttle pipe, the check valve groups, the hot water tank and the air-source heat exchanger, the defect that traditional ground source heat pump units are not suitable for being promoted in regions with high building densities and projects with large air conditioning loads is overcome, the source efficiency ratio is improved effectively, health hot water at the temperature of 65DEG C is supplied, the problem of insufficient heat temperatures of hot water caused by inadequate refrigeration in transition seasons is solved, the hot water is output directly through tap water pressure, the dual hot water function of air source and solar energy is achieved, and heating is achieved without electricity at the temperature of minus 20DEG C in winter.

Description

Air-source central air-conditioning hot water tri-generation source pump
Technical field
The present invention relates to central air-conditioning heat-supplying refrigeration technology field, be specially a kind of air-source central air-conditioning hot water tri-generation source pump.
Background technology
Traditional central air-conditioning hot water tri-generation source pump mainly contains following three kinds:
1, source central air-conditioning hot water tri-generation source pump
Utilize underground shallow layer soil, or river, or underground water source cold-heat character capacious, heat exchanger is imbedded to underground shallow layer soil, or rivers, or in underground water source, or directly extract rivers or underground water source, do medium and underground shallow layer soil by water, rivers and underground water source carry out cold and hot exchange, by the earth source heat pump unit, water is carried out to cold and hot exchange, by inputting a small amount of high-grade electric energy, by underground shallow layer soil, low-gradely in rivers and underground water source cold and hotly can be promoted to high-grade cold and hot energy, again by fan coil and hot water circulating pump by high-grade cold and hot can utilization, reach annual hot water, the requirement of air conditioner refrigerating and heating three alliances.
The earth source heat pump unit is energy saving at present, comprehensive energy efficiency is than the highest, unit operation is stablized the not impact of climate, yet the cost of its underground shallow layer soil pipe laying mode is large and comprehensive method of investment benefit is low, although it is lower directly to extract the cost of river or underground water source mode, because the impact that changed by water level and geology is applied very greatly less.The application of earth source heat pump unit, generally need to carry out a large amount of hidden pipe laying engineerings underground, and the quality problems unrepairable exists subsurface geology to change and the hidden danger of the damage of construction reconstruction; Need a large amount of with underground, to carry out cold and hot exchange in the earth source heat pump unit running process, when underground cold and hot exchange unbalance factor is large and need the long period, can produces the cold and hot exchange inefficacy in source, ground and destroy the serious consequence of underground ecological environment; Simultaneously because the underground buried tube floor space is large, source, old place heat pump is not suitable for promoting in the area large in site coverage and the larger construction project of air conditioner load, and relatively is suitable for area and the less construction project of air conditioner load that site coverage is little.
2, air-source central air-conditioning hot water tri-generation source pump
Net for air-source heat pump units is to utilize contrary Carnot's principle, by the refrigerant closed circulation running system of the installation compositions such as compressor, condenser, expansion valve, evaporimeter; Under the driving of electric energy, the gas of refrigerant boil down to HTHP in compressor, from the compressor high-pressure exhaust, discharge, enter the liquid that the condenser heat release is condensed into middle temperature high pressure, the liquid that is middle temperature low pressure by the expansion valve expenditure and pressure again enters evaporimeter, the liquid refrigerants of middle temperature low pressure absorbs heat and is evaporated to the gas of low-temp low-pressure in evaporimeter, gets back to compressor low pressure air suction mouth.By refrigerant, constantly flow, operation through Fan and pump, make the empty G&W that circulates and condenser and evaporimeter carry out the partition heat exchange, by net for air-source heat pump units, air is carried out to cold and hot exchange, by the high-grade electric energy of input, by low-grade cold and hot energy in air, be promoted to high-grade cold and hot energy, again by fan coil and hot water circulating pump by high-grade cold and hot can utilization, reach the requirement of annual hot water, air conditioner refrigerating and heating three alliances.
Net for air-source heat pump units is at present lower-cost a kind of, but overstocked because of the finned heat exchanger spacing of fin during winter heating, cause slight frosting heat exchanger to get clogged, affect circulation of air and the heat exchange amount sharply descends, need frequent defrosting to maintain the circulation of air, need auxiliary a large amount of high-grade electric energy heatings simultaneously, thereby cause the equipment operational energy efficiency lower.
3, cooling tower+mono-cold-heat pump+gas-fired water heating boiler or oil burning boiler or coal-burning boiler central air-conditioning hot water tri-generation unit
Reach the requirement of refrigeration and hot water supply summer by cooling tower+mono-cold-heat pump unit, conditioning in Transition Season reaches the requirement of hot water supply by gas-fired water heating boiler or oil burning boiler or coal-burning boiler, reach heating and hot water supply by gas-fired water heating boiler or oil burning boiler or coal-burning boiler winter, reaches the requirement of annual hot water, air conditioner refrigerating and heating three alliances.
System cost is lower than earth source heat pump unit, higher than net for air-source heat pump units, but its contaminated environment, a large amount of water consumption, operation is complicated, maintenance workload is large and the maintenance technique requirement is high, for grassroot project, has belonged to and having eliminated and proposed recommendations unit not.
Summary of the invention
Technical problem solved by the invention is to provide a kind of air-source central air-conditioning hot water tri-generation source pump, overcome source source pump traditionally and be not suitable for the shortcoming of promoting in the area large in site coverage and the larger project of air conditioner load, solved conventional air source source pump winter heating air-source heat exchanger needs frequent defrosting and needs auxiliary the heating of electricity and cause the source effect than low problem simultaneously; And provide 65 ℃ of health hot waters, efficiently solved when spring and autumn, the transition season refrigeration was with the hot water combined running, refrigeration is not enough causes the problem that the hot water heating temperature is inadequate, there is hot water directly by the dual hot water function of tap water pressure output, air-source and solar energy, to solve the shortcoming in the above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Air-source central air-conditioning hot water tri-generation source pump, comprise compressor, solar heat water pump, hot water backwater's pump, boiler, hot water electromagnetic valve, air conditioner electric magnet valve, cross valve, check valve group I, cabinet, blower fan, check valve group II, air-source heat exchanger, air-condition heat exchanger, filter, water pump of air conditioner, energy storage canister, heating power expansion valve I, balance throttle pipe, balanced solenoid valve, heating power expansion valve II, fluid reservoir, economizer, gas-liquid separator and connecting line, wherein, be provided with hot-water heater and solar heat water jacket in described boiler, described solar heat water pump is connected with the solar heat water jacket, described hot water backwater's pump one end is connected with end hot-water heating system pipeline, the other end is connected with boiler, described boiler, air conditioner electric magnet valve, economizer and gas-liquid separator are connected with compressor respectively, and described hot water electromagnetic valve's one end is connected with boiler, and the other end is connected with fluid reservoir, described air conditioner electric magnet valve, check valve group I, gas-liquid separator and air-condition heat exchanger are connected with cross valve respectively, described check valve group I is connected with check valve group II with the air-source heat exchanger, described air-source heat exchanger comprises air-source heat exchanger separating tube, set of heat exchange tubes, air-source heat exchanger collector tube, plate fin group I and plate fin group II, described air-source heat exchanger is arranged in cabinet, also be provided with blower fan in described cabinet, described check valve group II respectively with fluid reservoir, air-condition heat exchanger, heating power expansion valve I and balance throttle pipe connect, described air-condition heat exchanger is connected with energy storage canister by the air water pump, described balanced solenoid valve respectively with economizer, heating power expansion valve I and balance throttle pipe connect, described heating power expansion valve II is connected with economizer and filter respectively, described filter is connected with energy storage canister, in addition, described cross valve comprises low tension outlet on high pressure entry under cross valve, the left interface of cross valve, the right interface of cross valve, cross valve.
In the present invention, described hot-water heater is formed in parallel by many groups coil pipe, is conducive to reduce refrigerant by the flow resistance of the many groups of hot-water heater coil pipe in parallel, thereby reduces driven compressor power and running current, improves the Energy Efficiency Ratio of compressor.
In the present invention, described solar heat water jacket is the spiral cylinder, and the spiral cylinder has increased the partition heat exchange area, and the guiding solar water, along helical flow, improves heat exchange efficiency; Solar heat water jacket and boiler inner cylinder seal welding, hot water in external solar water and boiler is partition heat exchange and can not mixing, external solar water totally can not pollute the hot water of boiler, external solar water can be done medium with anti-icing fluid, solves simply the antifreeze problem of external solar water heating system.
In the present invention, described check valve group I comprises interface and check valve group I lower interface on the left interface of check valve group I, the right interface of check valve group I, check valve group I; Described check valve group I lower interface is connected with the left interface of cross valve, the left interface of check valve group I is connected with air-source heat exchanger separating tube upper inlet, the right interface of check valve group I is connected with exporting under air-source heat exchanger collector tube, on check valve group I, interface is connected with interface on check valve group II, structurally guarantee refrigeration or heat-production functions, be cross valve commutation or do not commutate, the refrigerant of turnover air-source heat exchanger heat-exchanging tube group be all upper entering and lower leaving with in advance to go out; Its effect 1 guarantees that the oil return of lubricating oil gravity and oil return in refrigerant are smooth, its refrigerant acted in 2 set of heat exchange tubes is contrary with the flow direction of set of heat exchange tubes exogenous wind, make the fins set frosting of set of heat exchange tubes more even, guarantee that the front air-source heat exchanger of defrost can not produce local clogging.
In the present invention, the blower fan arranged in described cabinet comprises exhaust fan and air intake blower fan, described exhaust fan is arranged on the cabinet top, described air intake blower fan is arranged on the cabinet side bottom, can reach the more uniform requirement of air quantity by fins set on the air-source heat exchanger, improve the heat exchange efficiency of air-source heat exchanger; With traditional approach, use a large blower fan to compare, cost increases few, but performance improves and running noises reduces larger.
In the present invention, described check valve group II comprises interface on check valve group II, check valve group II lower interface, the left interface of check valve group II, the right interface of check valve group II; The left interface of described check valve group II exports and is connected with fluid reservoir left entry and hot water electromagnetic valve, the right interface of check valve group II is connected with the outlet of heating power expansion valve I and balance throttle pipe, check valve group II lower interface is connected with the air-condition heat exchanger lower interface, structurally guarantee refrigeration or heat, be that cross valve commutates or do not commutate, the mobile direction of turnover storage Huaihe River tank refrigerant is all in the same way, and meeting the mobile direction of turnover filter, heating power expansion valve I, heating power expansion valve II and fluid reservoir refrigerant is structural requirement in the same way.
In the present invention, described plate fin group I is arranged on the outside windward of set of heat exchange tubes, described plate fin group II is arranged on the leeward inboard of set of heat exchange tubes, the spacing of described plate fin group I fin is greater than the spacing of plate fin group II fin, the spacing of plate fin group I fin is 5~7mm, the spacing of plate fin group II fin is 4~6mm, being generally 2~3mm with the spacing of conventional air source plate formula finned heat exchanger fin compares, during unit winter heating, fin frosting thickness reaches 1mm just needs defrosting; Fin frosting thickness reaches 1mm, and circulation of air between fin is also affected not quite, can not stop up flowing of air, does not affect the heat exchange of fin and air; Fin frosting windward side frosting is more serious than lee face, be that the frosting that spacing of fin is large is thicker than lee face frosting, the windward side spacing of fin is greater than the structure of lee face, makes after the heat exchange frosting gap of circulation of air substantially even, has avoided local frosting serious and stop up Air Flow; Slight frosting can improve heat exchanger low temperature heat absorption capacity, and slight frosting can be considered evaporator fin and strengthened endotherm area; The frosting produced on fin, also can from mobile air, absorb heat and the part distillation, the speed that causes frosting thickness to increase is slower, even in the environment temperature scope of 0~-5 ℃ the most serious in frosting, the time that frosting reaches 1mm needed more than 8 hours, and heat exchanger can be with frost to carry out the high energy efficiency ratio heat exchange for a long time, and heat exchanger does not need frequent defrosting, do not need electric additional heat can guarantee heating effect, therefore the Energy Efficiency Ratio of its winter heating is higher yet.Below temperature-5 ℃, because of the water in air steam, reduce, the fin surface frosting is tending towards reducing on the contrary, can be different by two groups of fins set spacings of air-source heat exchanger, the plate fin heat exchanger that strengthens of spacing and heat exchange areas, realize frosting evenly, reduce frosting degree, extend time between twice defrosting, reduce the defrosting number of times, exempt obstruction that frosting causes air channel between the air-source heat exchanger fin too early, improve evaporating temperature or reduce the effect of condensation temperature.Conventional air source plate formula finned heat exchanger fin pitch is from identical, outside having windward, fin and leeward inboard fin does not divide, because the spacing of fin is too small, frosting has a strong impact on the circulation of air and causes vicious circle, when unit winter heating is used, fin frosting thickness just needs defrosting while reaching 0.5mm, within general 30~45 minutes, just need defrosting once, can not heat exchange to avoid the heat exchanger frosting to stop up; In heat exchanger defrosting when operation,, not only need to consume electric energy, and heat pump also needs to stop heating and affects the effect of heating; More frequent because of the heat exchanger defrosting, unit needs the auxiliary effect that heats the guarantee heating of a large amount of electricity, therefore the Energy Efficiency Ratio of its winter heating is lower.
In the present invention, described cabinet top is provided with four air-source heat exchangers, air-source heat exchanger arrangement is " X " type, cabinet top is divided into to four triangular stud spaces, opens four, cabinet top side plate, can directly clean fin on four air-source heat exchangers, tradition " mouth " font air-source heat exchanger, open four, cabinet top side plate, can only be cleaned outside fin on the air-source heat exchanger, inboard fin is difficult to clean up.In addition, because the cornerwise length of rectangle two is greater than the length on its four limit, therefore same space empty source of the gas heat exchanger is arranged as " X " type, larger than tradition " mouth " font heat exchange area.
In the present invention, described balanced solenoid valve entrance is connected with the outlet of economizer bottom right and heating power expansion valve I entrance respectively, and described balanced solenoid valve outlet is connected with the balance throttle pipe; The throttling action of balance throttle pipe: prevent that the impact produced when the high-low pressure refrigerant is ganged up is excessive; protection part and pipeline are not damaged; after the balanced solenoid valve energising is opened; refrigerant is by balance throttle pipe and balanced solenoid valve; walking around heating power expansion valve I high-low pressure directly is communicated with; reach the requirement of high-low pressure refrigerant Fast-Balance, after the coolant system high-low pressure is in a basic balance, then changes cross valve and start the compressor defrosting.By contrast; do not have conventional air source heat pump compressor not shut down; the defrosting mode of direct reverse conversion cross valve; the impact produced when efficiently solving the high-low pressure refrigerant and ganging up is excessive; and it is inhomogeneous to cause refrigeration oil to flow, the compressor short time, interior oil-feed was too much, made compressor produce the problem of liquid hammer mechanical wounding and life-span reduction; keep the advantage of conventional counter conversion cross valve defrosting, avoided conventional counter to change the shortcoming of cross valve defrosting.
In the present invention, by energy storage canister, balance throttle pipe, balanced solenoid valve and the reverse effect of cross valve, the defrosting of air-source heat exchanger fin is by heat pump heat carrying principle, the heat of energy storage canister and air conditioning terminal hot water is transferred to rapidly to the fin surface rapid frost melting, the fin frosting starts defrosting internally, frosting only needs partial melting, can under the effect of gravity, automatically drop, reach the requirement with a small amount of heat rapid frost melting, reduce the impact of defrosting on air-conditioning heating, improve the purpose of unit operation Energy Efficiency Ratio.
In the present invention, described compressor comprises low pressure air suction mouth, high-pressure exhaust and puff prot.
In the present invention, during described economizer one side is a small amount of the refrigerant liquid of warm low pressure with a large amount of by the economizer opposite side in the refrigerant liquid of warm low pressure carry out heat exchange, in making in a large number, the refrigerant liquid of warm low pressure is excessively cold, get back to the compressor puff prot a small amount of in the cold media gas of warm low pressure, automatically regulate the load of compressor, make cooling compressor, stop high pressure too high, ability to work and the Energy Efficiency Ratio of compressor adaptation high and low temperature environment temperature have effectively been improved, make source pump that 65 ℃ of health hot waters can be provided, the lower 20 ℃ of heating of zero in winter heat without electricity is auxiliary.
In the present invention, in described coolant circulating system in boiler the refrigerant pipeline of hot-water heater and air-condition heat exchanger be connected to parallel way, flow Distance Shortened and resistance of its refrigerant reduces, and compressor power consumption reduced and the systematic energy efficiency ratio raising.
In the present invention, described fluid reservoir comprises fluid reservoir left entry and the right outlet of fluid reservoir.
In the present invention, described economizer comprises economizer upper left entrance, the outlet of economizer lower-left, economizer upper right entrance and the outlet of economizer bottom right.
In the present invention, operation by the solar heat water pump, by in the hot water circuit of external solar water heater input solar heat water jacket, the heat of solar water by the heating of the water in boiler, realizes that solar water organically is combined with air source heat pump hot water by partition; Water in the direct heat hot water tank of hot-water heater, save the hot water circulation heated water pump; Boiler directly utilizes the tap water pressure pressurization, by the operation of hot water backwater's pump, will in the water of end hot-water heating system pipeline input boiler, heat, and reaches end hot-water heating system water and opens the requirement of tap for water with pressure and hot water; Final hot water or cold water are delivered in the end coil pipe of air-conditioner blower, or hot water is delivered in end hot-water heating system pipeline, unwanted heat or cold are delivered to outdoor, reach the requirement of air conditioner refrigerating, air-conditioning heating, hot-water supply three alliances.
In the present invention, the heat pump unit is provided with controller, according to the operation of working condition requirement automatic control compressor, water pump of air conditioner, hot water backwater's pump, solar heat water pump, blower fan with stop, starting and close air conditioner electric magnet valve, hot water electromagnetic valve, balanced solenoid valve, control the conversion of cross valve, operation by compressor, refrigerant is compressed to the gas of HTHP, from the high-pressure exhaust of compressor, discharge, the gas of HTHP is at the air-source heat exchanger, or air-condition heat exchanger, or in the hot-water heater of boiler, heat release is condensed into the liquid of middle temperature high pressure, the liquid that the restriction isothermal decompression of the liquid of middle temperature high pressure by heating power expansion valve is middle temperature low pressure, the liquid of middle temperature low pressure is at the air-source heat exchanger, or absorb heat in air-condition heat exchanger, be evaporated to the gas of low-temp low-pressure, get back to compressor low pressure air suction mouth, refrigerant constantly is recycled suction in compressor, compression and discharge, simultaneously by the operation of blower fan, the fin of air air-source heat exchanger heat-exchanging tube group flows through, and enters the cold media gas of HTHP in set of heat exchange tubes during refrigeration, and its heat is first passed to fin, pass to the mobile air of fin surface, the refrigerant heat release is flowed out after being condensed into the liquid of middle temperature high pressure again, in entering in set of heat exchange tubes while heating, the refrigerant liquid of warm low pressure, absorb heat from mobile air by fin, flows out after being evaporated to the gas of low-temp low-pressure, operation by water pump of air conditioner, cooling water or chilled water circulate in air-condition heat exchanger, during refrigeration, air-condition heat exchanger enters the refrigerant liquid of middle temperature low pressure, partition by refrigerant and water absorbs heat from chilled water reduces cold water temperature, refrigerant is the expansion of liquids heat absorption of warm low pressure therefrom, flows out after being evaporated to the gas of low-temp low-pressure, while heating, air-condition heat exchanger enters the cold media gas of HTHP, and its heat is passed to cooling water by the partition of refrigerant and water raises water temperature, and the refrigerant heat release is flowed out after being condensed into the liquid of middle temperature high pressure, cold media gas by HTHP circulates in hot-water heater, its heat is directly passed to the water in boiler by the partition of refrigerant and water, the water temperature of boiler is raise, flow out after the liquid that refrigerant condensation heat release is middle temperature high pressure, to realize function separately.
In the present invention, based on above-mentioned air-source central air-conditioning hot water tri-generation source pump operation principle, the whole year is as required by following five operating modes operation:
One, independent air conditioner refrigerating operating mode
Solar heat water pump and hot water backwater's pump do not move, and hot water electromagnetic valve and balanced solenoid valve are normally closed, and the air conditioner electric magnet valve is often opened, and the cross valve no power is refrigeration mode.
1, chilled water backwater water temperature is higher than design temperature (12 ℃)
By connecting piping and compressor running, high-pressure refrigerant discharged from the compressor through the air conditioning vents → → into the next four-way solenoid valve high pressure into a one-way inlet valve → → Ⅰ interface Interface outflow from the four-way valve left → air source heat exchanger into a one-way valve from the left ⅰ Interface outflow of the fluid pipe interfaces → → → → Interface outflow through the one-way valve into the air source heat exchanger tubes group from the air source heat collector tube group ⅰ Right Interface → Interface → outflow from the one-way valve into a one-way valve ⅰ ⅱ Interface → left from a one-way valve into the reservoir interfaces ⅱ left outflow → entrance→ outflow from the reservoir through the right outlet filter by two routes: a large number of refrigerant entering the economizer outlet flow from the upper right entry → → economy is right by the thermal expansion valve into a one-way valve Ⅱ Ⅰ → Interface → from the right way under Interface outflow valve into the air conditioning heat exchangers Ⅱ → Interface → Interface flowing from under the air conditioning heat exchanger into the four-way valve to the right connector → → pressure outlet from the four-way valve into the gas-liquid separator effluent → → Right from the gas inlet liquid separator left exit out of the low-pressure compressor suction port back → → → compressed by the compressor and from the high-pressure compressor discharge opening; small amount of refrigerant through the thermostatic expansion valve Ⅱ → entry into the economy is the top left →Entering the compressor nozzles lower left exit from the economic outflow → → → compressed by the compressor and from the exhaust of the high pressure compressor, the refrigerant so constantly circulating; through the air conditioning pump and fan operation, high temperature high pressure refrigerant gas heat air source heat exchanger to pass the air flowing on the surface, the condensation heat of the refrigerant temperature and high pressure liquid; large in low-temperature liquid refrigerant absorbs heat from water, air-conditioning refrigeration cycle in the heat exchanger so as to cool the freezing cold water, the refrigerant endothermic evaporation of low temperature and pressure of the gas; cold water to the end of the indoor air-conditioning fan coil, the realization of indoor air conditioning and refrigeration.
2, chilled water backwater water temperature is lower than design temperature (10 ℃)
The Compressors and Fans outage is out of service, and water pump of air conditioner continues operation and maintains circulating of chilled water.
3, realize that according to above-mentioned circulation air conditioner refrigerating regulates operation automatically.
Two, independent air-conditioning heating operating mode
1, cooling water backwater water temperature lower than design temperature (40 ℃) and ambient air temperature higher than set temperature (3 ℃)
Solar heat water pump and hot water backwater's pump do not move, and hot water electromagnetic valve and balanced solenoid valve are normally closed, and the air conditioner electric magnet valve is often opened, and the cross valve energising is heating mode.
By connecting piping and compressor operation, the high-pressure refrigerant from the compressor through the air conditioning vent exhaust → → to enter the four-way solenoid valve high pressure inlet into the air conditioning heat exchangers from the four-way valve to the right connector on the interface → → outflow from Interface outflow into a one-way valve ⅱ → interface → Interface → enter the reservoir outflow from the left entrance-way valve ⅱ left → right outlet flow from the tank through the filter → two routes under the air conditioning heat exchangers: a lot of refrigerant entering the economizer outlet flow from the upper right entry → → economy is right by the thermal expansion valve into a one-way valve ⅱ ⅰ → Right → Interface → Interface outflow into the one-way valve ⅰ interface from the one-way valve ⅱ → Interface outflow from a one-way valve ⅰ Right →Air source heat exchanger into the dispensing tube outflow Interface Interface → → → enter the one-way valve Ⅰ-way valve from the right interfaces → air source heat exchanger tubes through the group from the air source heat collector tube Used interface ⅰ way valve into the left → O → four-way valve from the low pressure outlet opening into the gas-liquid separator → → left and right inlet from the outlet opening → low pressure vapor-liquid separator to the compressor through the suction port of the compressor → → and from the high pressure compressor compressed exhaust vent; small amount of refrigerant through the thermostatic expansion valve Ⅱ → entry into the economy is the top left → left → flowing into the compressor outlet nozzles from the economizer → → compressed by a compressorAnd from the exhaust of the high pressure compressor, the refrigerant so constantly circulating; through the air conditioning pump and fan operation, high-temperature high-pressure refrigerant gas in the heat to the air conditioning heat exchangers, heat condensing temperature and high pressure liquid to the cooling water hot water heating; temperature and high pressure liquid refrigerant through the thermostatic expansion valve orifice ⅰ reduced pressure from the air source heat exchanger surface flowing air to evaporate the low-temperature low-pressure gas, hot water supplied to the end of the indoor air fan coil, the realization of the indoor air heating.
2, cooling water backwater water temperature lower than design temperature (40 ℃) and ambient air temperature lower than set temperature (2 ℃)
The air-source heat exchanger surface starts frosting, and when thickness surpass is set in the frosting of air-source heat exchanger surface, operating states of the units is with above-mentioned " cooling water backwater water temperature lower than design temperature and ambient air temperature higher than set temperature ".
The frosting of air-source heat exchanger surface reaches setting thickness, compressor is first shut down, after the blower fan time delay, shut down, water pump of air conditioner continues operation and maintains circulating of cooling water, the balanced solenoid valve energising is opened, after refrigerant is walked around heating power expansion valve I high-low pressure and directly is communicated with Fast-Balance, the balanced solenoid valve outage is closed, the cross valve outage is refrigeration mode, the compressor start operation, the heat of hot water in energy storage canister, by the circulating of refrigerant, is transported to when the air-source heat exchanger surface, the frosting of air-source heat exchanger surface is melted fast; After air-source heat exchanger surface frost melts; compressor shutdown; water pump of air conditioner continues operation and maintains circulating of cooling water; the balanced solenoid valve energising is opened, and after the high-low pressure Fast-Balance, the balanced solenoid valve outage is closed; the cross valve energising is heating mode; blower fan first starts, and after the compressor time delay, restarts, and re-starts the air-conditioning heating operation.
3, cooling water backwater water temperature is higher than design temperature (42 ℃)
Compressor, blower fan cut off the power supply out of service, and cross valve keeps outage for heating mode, and the water pump of air conditioner continuation moves and maintains circulating of cooling water.
4, realize that according to above-mentioned circulation air-conditioning heating regulates operation automatically.
Three, independent hot-water supply operating mode
1, the boiler water temperature lower than the water temperature of hot water in design temperature (50 ℃~65 ℃), external solar water heater lower than design temperature (55 ℃~70 ℃) and ambient air temperature higher than set temperature (3 ℃)
Solar heat water pump and water pump of air conditioner do not move, and the energising of air conditioner electric magnet valve is closed, and balanced solenoid valve is normally closed, and the cross valve energising is heating mode, and hot water electromagnetic valve's energising is opened.
By connecting the compressor running line, the high pressure refrigerant discharged from the compressor through the discharge port → hot water heater tank through the hot water solenoid valve → → → enters the inlet flows from the reservoir tank left and right outlet → After filter through two routes: a large number of refrigerant entering the economizer outlet flow from the upper right entry → → economy is right by the thermal expansion valve into a one-way valve Ⅱ Ⅰ → Right → Interface → Interface outflow from the one-way valve Ⅱ into a one-way valve from a one-way valve Ⅰ Interface → left → enter the interface outflow of air source heat exchanger tube on the interface → air source heat exchanger tubes through the group Ⅰ→ Interface outflow into a one-way valve → → Ⅰ right connector interface from the one-way valve Ⅰ way valve into the left outflow → Interface → pressure outlet from the four-way valve into the outflow → air source heat from the liquid collection tube left inlet liquid separator effluent → → → the intake port to the compressor low pressure compressed by the compressor and from the compressor → the exhaust of the high pressure gas-liquid separator from the right outlet; small amount of refrigerant through the thermostatic expansion valve into economic Ⅱ → the entrance is the upper left → lower left exit from the economic outflow into the compressor nozzles → → → compressed by the compressor and from the exhaust of the high pressure compressor, the refrigerant so constantly circulating hot water to achieve alone.
Cold media gas by HTHP circulates in hot-water heater, and its heat is directly passed to the water in boiler by the hot-water heater partition, and the water temperature of boiler is raise, and after the liquid that refrigerant condensation heat release is middle temperature high pressure, flows out; By the operation of blower fan, the refrigerant liquid of middle temperature low pressure absorbs heat in mobile air from the air-source heat exchanger surface, and the refrigerant swelling heat absorption is evaporated to the gas of low-temp low-pressure; The water temperature of hot water end system pipeline is lower than design temperature (40 ℃), hot water backwater's pump operation; The water temperature of hot water end system pipeline is higher than design temperature (45 ℃), and hot water backwater's pump is out of service.
2, the boiler water temperature lower than the water temperature of hot water in design temperature (50 ℃~65 ℃), external solar water heater lower than design temperature (55 ℃~70 ℃) and ambient air temperature lower than set temperature (2 ℃)
The air-source heat exchanger surface starts frosting, when surpassing, the frosting of air-source heat exchanger surface do not set thickness, in energy storage canister, water temperature is lower than design temperature (40 ℃), water pump of air conditioner first moves, air conditioner electric magnet valve delay cut-off is opened, the refrigerant of discharging from the compressor high-pressure exhaust separates part → by air conditioner electric magnet valve → enter high pressure entry cross valve, from the right interface of cross valve flow out → enter interface air-condition heat exchanger → from the air-condition heat exchanger lower interface flow out → enter check valve group II lower interface → from the left interface of check valve group II flow out → with from the hot water electromagnetic valve, refrigerant out converges, in energy storage canister, water temperature reaches design temperature (42 ℃), the air conditioner electric magnet valve is first switched on and is closed, the water pump of air conditioner time delay is out of service, the air conditioner electric magnet valve so circulates and cuts off the power supply and energising, water pump of air conditioner circular flow like this with stop.All the other running statuses of unit are with above-mentioned " in boiler water temperature lower than the water temperature of hot water in design temperature, external solar water heater lower than design temperature and ambient air temperature higher than set temperature ".
The frosting of air-source heat exchanger surface reaches setting thickness, compressor is first shut down, after the blower fan time delay, shut down, the balanced solenoid valve energising is opened, after refrigerant is walked around the direct connection of heating power expansion valve I high-low pressure and Fast-Balance, the balanced solenoid valve outage is closed, the cross valve outage is refrigeration mode, water pump of air conditioner first moves, the operation of compressor delayed startup, the heat of energy storage canister and air conditioning terminal hot water, by the circulating of refrigerant, is transported to when the air-source heat exchanger surface, the frosting of air-source heat exchanger surface is melted fast; After air-source heat exchanger surface frost melts; compressor is first shut down; the water pump of air conditioner time delay is out of service; the balanced solenoid valve energising is opened, and after the high-low pressure Fast-Balance, the balanced solenoid valve outage is closed; the cross valve energising is heating mode; blower fan first starts, and after the compressor time delay, restarts, and re-starts the air-conditioning heating operation.
3, the water temperature of the interior hot water of external solar water heater is higher than design temperature (55 ℃~70 ℃)
By the operation of solar heat water pump, by the hot water circuit of external solar water heater input solar heat water jacket, the partition by solar water and water heats the water of boiler.
4, boiler reaches design temperature (50 ℃~65 ℃)
Compressor, solar heat water pump, blower fan cut off the power supply out of service, and cross valve keeps energising for heating mode, and hot water backwater's pump is pressed the automatic operation of water temperature height of hot water end system pipeline.
5, reach the purpose of hot-water supply according to above-mentioned circulation.
Four, air conditioner refrigerating+hot-water combined supplying operating mode
1, the boiler water temperature is lower than design temperature, and chilled water backwater water temperature is higher than design temperature, and unit is running refrigerating and hot-water supply simultaneously
The energising of air conditioner electric magnet valve is closed, and balanced solenoid valve is normally closed, and the cross valve outage is refrigeration mode, and hot water electromagnetic valve's energising is opened, and blower fan does not move.
By connecting the compressor running line, the high pressure refrigerant discharged from the compressor through the discharge port → hot water heater tank through the hot water solenoid valve → → → enters the inlet flows from the reservoir tank left and right outlet → After filter through two routes: a large number of refrigerant entering the economizer outlet flow from the upper right entry → → economy is right by the thermal expansion valve into a one-way valve Ⅱ Ⅰ → Right → Interface → Interface outflow from the one-way valve Ⅱ Air conditioning heat flow from the interface → Interface → the air conditioning heat exchanger four-way valve into the right connector → four-way valve from the low pressure outlet opening into the gas-liquid separator → R → liquid separator inlet outlet opening left → back to the compressor low pressure compressed by the compressor suction port → → and from the high-pressure compressor discharge opening; small amount of refrigerant through the thermostatic expansion valve Ⅱ → → entry into the economy is the top left left out from the economizer outletThe injection port into the compressor → → → compressed by the compressor and from the exhaust of the high pressure compressor, the refrigerant circulates continuously so; temperature high-pressure refrigerant gas by the circulating water heater, hot water through the heat directly to the partition wall heater heat the water tank, the hot water tank rises, the condensation heat of the refrigerant temperature and high pressure liquid effluent; through the air conditioning water pump, the temperature in the low-pressure liquid refrigerant from the air heat exchanger frozen water absorption cycle heat, chilled water cooling into cold water, cold low-pressure refrigerant evaporates as gas; cold water to the end of the indoor air-conditioning fan coil, the realization of indoor air conditioning and refrigeration.
2, boiler water temperature and chilled water backwater water temperature are simultaneously lower than design temperature, and source pump is by independent hot-water supply operation.
3, boiler water temperature and chilled water backwater water temperature are simultaneously higher than design temperature, and source pump is by independent air conditioner refrigerating operation.
4, the boiler water temperature is higher than design temperature, and chilled water backwater water temperature is lower than design temperature, and source pump is shut down, and water pump of air conditioner continues the circulation that operation maintains chilled water.
5, circulate according to this and reach the purpose of air conditioner refrigerating and hot-water supply alliance.
Five, air-conditioning heating+hot-water combined supplying operating mode
1, boiler water temperature and cooling water backwater water temperature are simultaneously lower than design temperature, and unit moves heating and hot-water supply simultaneously
Balanced solenoid valve is normally closed, and hot water electromagnetic valve's energising is opened, and the outage of air conditioner electric magnet valve is often opened, and the cross valve energising is heating mode.
By connecting piping and compressor operation, the high-pressure refrigerant from the compressor discharge opening two routes: → all the way through the hot water tank through the hot water heater → solenoid valve; another way solenoid valve → enter through the air conditioning four-way valve under high pressure inlet into the air conditioning heat exchanger outflow from the four-way valve to the right connector on the interface → → → next unidirectional interfaces outflow valve interfaces → Ⅱ Ⅱ left out from the one-way valve from the air conditioning heat exchangers Interface ; two refrigerant in the accumulator tank left into the entrance portal confluence → → → outflow from the reservoir through the right outlet filter after two routes: a large number of refrigerant entering the economizer inlet → upper right right from the economizer outlet outflow → by thermal expansion valve into a one-way valve Ⅱ Ⅰ → → Right InterfaceInterface outflow from entering the one-way valve Ⅱ → Interface → unidirectional valve Ⅰ Ⅰ from a one-way valve into the left → Interface outflow of air source heat exchanger tube on the interface → by air source heat exchanger tubes Groups → interfaces into a one-way valve outflow → Interface → from the right way Ⅰ Ⅰ interface outflow valve four-way valve into the left → Interface → exit from the four-way valve outflow → low pressure air source heat from the liquid collection tube Entrance into the gas-liquid separator and right → left outlet from the effluent vapor-liquid separator to the compressor low pressure suction port → → → compressed by the compressor and from the exhaust of the high pressure compressor; small amount of refrigerant through the thermostatic expansion valve into Ⅱ → economizer inlet upper left → lower left exit from the economic outflow into the compressor nozzles → → → compressed by the high pressure compressor and from the compressor discharge vent,Continually circulating refrigerant so; passage portion in the high temperature high pressure gas refrigerant circulating water heater, the heat directly to the hot water tank through the hot water heater partition, so the hot water tank water temperature refrigerant condensing temperature and high pressure heat of the liquid effluent; through the air conditioning pump and fan operation, part of the high-temperature high-pressure refrigerant gas in the heat to the air conditioning heat exchangers, heat condensing temperature and high pressure liquid to the cooling of hot water heating water.The refrigerant liquid of middle temperature high pressure is by heating power expansion valve I restriction decompression, and from the air-source heat exchanger surface, in mobile air, heat absorption is evaporated to the gas of low-temp low-pressure, and hot water is delivered in end room conditioning fan coil, realizes room conditioning heating.
During the source pump operation, as the air-source heat exchanger surface, frosting reaches setting thickness, and the source pump defrosting method of operation is with the independent hot-water supply of aforementioned hot pump assembly or air-conditioning heating is identical separately.
2, the boiler water temperature is lower than design temperature, and cooling water backwater water temperature is higher than design temperature, and source pump is by independent hot-water supply operation.
3, the boiler water temperature is higher than design temperature, and cooling water backwater water temperature is lower than design temperature, and source pump is by independent air-conditioning heating operation.
When 4, boiler water temperature and cooling water backwater water temperature are simultaneously higher than design temperature, source pump is shut down, and water pump of air conditioner continues the circulation that operation maintains cooling water.
5, circulate according to this and reach the purpose of air-conditioning heating and hot-water supply alliance.
Above-mentioned five operating modes according to the needs in season, are selected arbitrarily operation by the user on generator set controller.
Beneficial effect
1, environmental protection and energy saving of the present invention are high with average Energy Efficiency Ratio: unit is used only to be needed to consume electric energy, there is no the pollution of combustion gas and coal-fired fossil energy; The plate fin heat exchanger that unit is used two groups of spacings of fin differences, spacing and heat exchange areas to strengthen, defrosting in energy storage, the multinomial raising unit operation such as solar water Energy Efficiency Ratio technology;
2, the easy to maintenance and long service life of the present invention: the air-source heat exchanger is air-cooled, the fin easy to clean, and the anhydrous corrosion harmfulness of fin, the impact that compressor bears is little, effectively improves compressor and air-source heat exchanger service life;
When 3, in the present invention, the transition season refrigeration is with the hot water combined running, refrigeration is not enough causes the problem that the hot water heating temperature is inadequate, has realized the intelligent function that hot water heating is temperature prioritised;
4, the present invention can provide the health hot water of 65 ℃, has overcome the shortcoming that traditional three combined supply heat pump units only provide 55 ℃ of hot water;
5, cost performance of the present invention is high: although the cost of air-source heat exchanger than traditional height, whole unit cost increases little, and that the combination property of unit improves is larger;
6, the present invention conforms extensively: can in the height temperature scope of-20 ℃~46 ℃, use.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be in Fig. 1 A to cutaway view.
Fig. 3 is the middle-size and small-size air-source central air-conditioning two combined supply heat pump unit schematic diagrames of the present invention or medium-sized air-source central hot water source pump schematic diagram.
Fig. 4 is the middle-size and small-size air source water heater schematic diagram of the present invention.
Fig. 5 is medium-sized air-source module source pump schematic diagram in the present invention.
Fig. 6 be in Fig. 5 A to top view.
Fig. 7 is the medium-and-large-sized air-source heat source tower heat pump of the present invention complete set of equipments schematic diagram.
Fig. 8 is heat source tower schematic diagram in the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the air-source central air-conditioning hot water tri-generation source pump of Fig. 8, comprise compressor 1, compressor low pressure air suction mouth 1-1, compressor high-pressure exhaust 1-2, compressor puff prot 1-3, solar heat water pump 2, hot water backwater's pump 3, boiler 4, hot-water heater 4-1, solar heat water jacket 4-2, the hot water electromagnetic valve 5, air conditioner electric magnet valve 6, cross valve 7, high pressure entry 7-1 under cross valve, the left interface 7-2 of cross valve, the right interface 7-3 of cross valve, low tension outlet 7-4 on cross valve, check valve group I 8, check valve group I lower interface 8-1, the left interface 8-2 of check valve group I, the right interface 8-3 of check valve group I, interface 8-4 on check valve group I, cabinet 9, blower fan 10, check valve group II 11, the upper interface of check valve group II 11-1, the left interface 11-2 of check valve group II, the right interface 11-3 of check valve group II, check valve group II lower interface 11-4, air-source heat exchanger 12, air-source heat exchanger separating tube 12-1, set of heat exchange tubes 12-2, air-source heat exchanger collector tube 12-3, plate fin group I 12-4, plate fin group II 12-5, air-condition heat exchanger 13, filter 14, water pump of air conditioner 15, energy storage canister 16, heating power expansion valve I 17, balance throttle pipe 18, balanced solenoid valve 19, heating power expansion valve II 20, fluid reservoir 21, economizer 22, gas-liquid separator 23, heat source tower 24, large-scale air source heat exchanger 25, Intermediate Heat Exchanger 26, heat source tower water pump 27, source pump 28.
In the present embodiment, Fig. 3 not only for small size air source of the gas central air-conditioning two combined supply heat pump unit schematic diagrames, but also be medium-sized air-source central hot water source pump schematic diagram, adapting to only needs provides air conditioner refrigerating and the place heated, and the hot water supply in larger place, Fig. 4 is small air source water heater schematic diagram, adapts to family, apartment, the supply of small-sized hotels and other places hot water, Fig. 5 and Fig. 6 are medium-sized air-source module source pump schematic diagram: two or three three combined supply heat pump Unit Combinations are one, two or three two combined supply heat pump units, two or three hot water heat pump units, adapt to central air-conditioning and the hot water supply in the places such as medium-and-large-sized hotel and unit, Fig. 7 is that heat source tower schematic diagram and Fig. 8 are large-scale air heat-source tower heat pump complete set of equipments schematic diagram, together with being arranged on the interior large-scale air source heat exchanger 25 of heat source tower 24 and large-scale source pump 28 inconvenience being located at, large-scale air-source heat exchanger 25 manufactures and designs for being suitable for being placed on heat source tower 24 equipment on roof, large-scale source pump 28 otherwise designed are arranged on machine room, middle pipeline and the interior Intermediate Heat Exchanger 26 of unit used is connected, in pipeline, heat transferring medium is anti-icing fluid, anti-icing fluid drives and circulates heat exchange by heat source tower water pump 27, adapt to central air-conditioning and the hot water supply in the places such as Large-scale Hotel and unit.
In the present embodiment, controller is according to the operation of working condition requirement automatic control compressor 1, water pump of air conditioner 15, hot water backwater's pump 3, solar heat water pump 2, blower fan 10 and stop, and starts and close the conversion of air conditioner electric magnet valve 6, hot water electromagnetic valve 5, balanced solenoid valve 19 and cross valve 7.
Referring to Fig. 1, Fig. 2, air-source central air-conditioning hot water tri-generation source pump is moved by following five operating modes the whole year as required:
One, independent air conditioner refrigerating operating mode
Solar heat water pump 2 does not move with hot water backwater's pump 3, and hot water electromagnetic valve 5 is normally closed with balanced solenoid valve 19, and air conditioner electric magnet valve 6 is often opened, and cross valve 7 no powers are refrigeration mode.
1, chilled water backwater water temperature is higher than design temperature (12 ℃)
By connecting the compressor to run a pipeline, the refrigerant is discharged through the air conditioning → 6 → enter the four-way solenoid valve under high pressure from a four-way valve inlet 7-1 → 7-2 from the left interface to the high-pressure compressor exhaust port 1-2 outflow into a one-way valve → 8-1 → ⅰ interface into a one-way valve from the left ⅰ Interface 8-2 outflow → air source heat exchanger tubes of the liquid through tubes set 12-3 12-2 Interface → → Interface → outflow into a one-way valve ⅰ Right Interface Interface 8-4 8-3 → → outflow from the one-way valve into a one-way valve ⅰ ⅱ from the air source heat collector tube 12-1 Interface 11-1 → ⅱ left from a one-way valve into the reservoir interfaces 11-2 outflow → 21 → outflow from the reservoir inlet left and right outlet 21 through the filter 14 → two routes:A lot of refrigerant into the economy right upper inlet 22 → 22 right out from the economy through the thermal expansion valve outlet → Ⅰ 17 → Ⅱ into a one-way valve from the right connector 11-3 → Ⅱ Interface 11-4 unidirectional valve into the outflow → air conditioning heat exchanger 13 into a four-way valve interface → Right outflow from the air conditioning heat exchangers Interface Interface 7-3 → → 13 from the four-way valve into the low pressure outlet 7-4 outflow → gas-liquid separator 23 from the right entry → gas-liquid separator 23 left exit out of the low-pressure compressor suction port back → 1-2 → → discharged through the compressor 1 and from the high pressure compressor exhaust port 1-2; small amount of refrigerant through the thermostatic expansion valve Ⅱ 20 →22 top left entrance into the economy → → outflow into the compressor nozzles 1-3 → → compressed by the compressor 1 and from the high pressure compressor discharge vent 1-2, so constantly circulating refrigerant from the economizer outlet 22 left.
Operation by water pump of air conditioner 15 with blower fan 10, the heat in the HTHP cold media gas is passed to the air-source heat exchanger 12 upper mobile air in surface, and the refrigerant heat release is condensed into the liquid of middle temperature high pressure; Absorb heat the circulated refrigerated water of the refrigerant liquid of warm low pressure in air-condition heat exchanger 13 in a large amount of, make chilled water lower the temperature into cold water, the refrigerant heat absorption is evaporated to the gas of low-temp low-pressure; Cold water is delivered in end room conditioning fan coil, reaches the requirement of room conditioning refrigeration.
2, chilled water backwater water temperature is lower than design temperature (10 ℃)
Compressor 1, blower fan 10 cut off the power supply out of service, and water pump of air conditioner 15 continues operation and maintains circulating of chilled water.
3, reach according to above-mentioned circulation the purpose that air conditioner refrigerating is regulated operation automatically.
Two, independent air-conditioning heating operating mode
1, cooling water backwater water temperature lower than design temperature (40 ℃) and ambient air temperature higher than set temperature (3 ℃)
Solar heat water pump 2 does not move with hot water backwater's pump 3, and hot water electromagnetic valve 7 is normally closed with balanced solenoid valve 19, and air conditioner electric magnet valve 6 is often opened, and cross valve 7 energisings are heating mode.
By connecting the compressor to run a pipeline of high pressure refrigerant discharged from the compressor through the air conditioning vent solenoid valve 1-2 → 6 → to enter the four-way valve high pressure inlet 7-1, 7-3 from the four-way valve to the right connector Air conditioning heat exchanger outflow → 13 → to the next one-way valve interfaces Interface 11-4 → Ⅱ Ⅱ left from a one-way valve → Interface 11-2 outflow from the reservoir into the air conditioning heat exchanger 13 interface outflow → 21 left and right entrance → exit outflow from the reservoir 21 through the filter after 14 → two routes: a large upper right refrigerant inlet 22 into the economic outflow from the economy → 22 → exit right through the thermal expansion valve Ⅰ 17 → enter the one-way valve Group Ⅱ Right Interface 11-3 → Interface from the one-way valve Ⅱ 11-1 on a one-way valve into the outflow → Ⅰ Interface 8-4 →→ outflow into the air source heat exchanger from a one-way valve Ⅰ 8-2 points on the right connector interfaces tube 12-3 through 12-2 → 12-1 → down from the air source heat collector tube tubes Group Interface outflow into a one-way valve Ⅰ → Right Interface 8-3 → → outflow into the four-way valve pressure outlet left Interface 7-2 → 7-4 → outflow from the four-way valve from a one-way valve Ⅰ interface 8-1 into gas-liquid separator 23 from the right entrance of the gas-liquid separator 23 → left → Back 1-2 outflow discharge outlet of the compressor and from the compressor low pressure suction port → compressor 1 through the discharge port → 1-2; a small amount of refrigerant through the thermostatic expansion valve into the economy Ⅱ 20 → 22 → outflow → upper left entrance into the compressor nozzles 1-3 → → compressed by the compressor 1 and from the high-pressure compressor exhaust port 1-2 22 left exit from the economic discharge, so constantly circulating refrigerant.
By water pump of air conditioner 15 and fan operation, the heat in the HTHP cold media gas is passed to air-condition heat exchanger 13, and heat release is condensed into the liquid of middle temperature high pressure, makes cooling water be heated to be hot water.The refrigerant liquid of middle temperature high pressure is by the 17 restriction decompressions of heating power expansion valve I, from air-source heat exchanger 12 surface in mobile air, heat absorption is evaporated to the gas of low-temp low-pressure, and hot water is delivered in end room conditioning fan coil, reaches the requirement of room conditioning heating.
2, cooling water backwater water temperature lower than design temperature (40 ℃) and ambient air temperature lower than set temperature (2 ℃)
Air-source heat exchanger 12 surface starts frostings, when the surperficial frosting of air-source heat exchanger 12 surpasses, sets thickness, and the source pump running status is consistent with above-mentioned " cooling water backwater water temperature lower than design temperature with ambient air temperature higher than set temperature ".
The surperficial frosting of air-source heat exchanger 12 reaches setting thickness; compressor 1 is first shut down; after blower fan 10 time delays, shut down; water pump of air conditioner 15 continues operation and maintains circulating of cooling water; balanced solenoid valve 19 energisings are opened; after refrigerant is walked around heating power expansion valve I 17 high-low pressures and directly is communicated with Fast-Balance; balanced solenoid valve 19 outages are closed; cross valve 7 outages are refrigeration mode; compressor 1 starts operation; the heat of hot water in energy storage canister 16, by the circulating of refrigerant, is transported to when air-source heat exchanger 12 surfaces, the surperficial frosting of air-source heat exchanger 12 is melted fast.
After the surperficial frost melts of air-source heat exchanger 12; compressor 1 is shut down; water pump of air conditioner 15 continues operation and maintains circulating of cooling water; balanced solenoid valve 19 energisings are opened, and after the high-low pressure Fast-Balance, balanced solenoid valve 19 outages are closed; cross valve 17 energisings are heating mode; blower fan 10 first starts, and after compressor 1 time delay, restarts, and re-starts the air-conditioning heating operation.
3, cooling water backwater water temperature is higher than design temperature (42 ℃)
Compressor 1, blower fan 10 cut off the power supply out of service, and cross valve 7 keeps outage for heating mode, and water pump of air conditioner 15 continuation move and maintain circulating of cooling water.
4, reach according to above-mentioned circulation the purpose that operation is regulated in air-conditioning heating automatically.
Three, independent hot-water supply operating mode
1, boiler 4 water temperatures lower than the water temperature of hot water in design temperature (50 ℃~65 ℃), external solar water heater lower than design temperature (55 ℃~70 ℃) and ambient air temperature higher than set temperature (3 ℃)
Solar heat water pump 2 does not move with water pump of air conditioner 3, and 6 energisings of air conditioner electric magnet valve are closed, and balanced solenoid valve 19 is normally closed, and cross valve 7 energisings are heating mode, and hot water electromagnetic valve's 5 energisings are opened.
By connecting the compressor to run a pipeline, the refrigerant is discharged through the hot water heater 4-1 → → by water entering the tank solenoid valve 5 → 21 → left entrance from the reservoir from the high pressure compressor exhaust port 1-2 Right out of the outlet tank 21 → 14 after two routes through the filter: a large upper right refrigerant inlet 22 into the economic outflow from the economy → 22 → exit right through the thermal expansion valve Ⅰ 17 → ⅱ the right to enter a one-way valve interface 11 - 3 → from the one-way valve ⅱ Interface 11-1 entering the interface 8-4 → → outflow from a one-way valve ⅰ Interface 8-2 outflow → left into the air source heat exchanger on a one-way valve dispensing tube 12 ⅰ on -3 Interface → 12-2 → outflow interface via tubes from the group set air source heat exchanger tube 12-1→ one-way valve into the right Ⅰ Interface 8-3 → → enter the four-way valve is left out of the interface 7-2 → Low exports from the four-way valve 7-4 outflow → Ⅰ interface from the one-way valve into the gas 8-1 left-liquid separator 21 to the compressor low pressure suction inlet port → gas-liquid separator 21 from the right outlet opening → 1-2 → → compressor 1 is discharged through the high pressure compressor discharge port and from 1-2; small refrigerant by thermal expansion valve into the economy Ⅱ 20 → 22 → outflow → upper left entrance into the compressor nozzles 1-3 → → compression by the compressor discharge and from the high pressure compressor exhaust port 1-2 22 left exit from the economic, so constantly circulating refrigerant.
Cold media gas by HTHP circulates in hot-water heater 4-1, and its heat is directly passed to the water in boiler 4 by hot-water heater 4-1 partition, and boiler 4 water temperatures are raise, and after the liquid that refrigerant condensation heat release is middle temperature high pressure, flows out.
By the operation of blower fan 10, the refrigerant liquid of middle temperature low pressure absorbs heat in mobile air from air-source heat exchanger 12 surface, and the refrigerant swelling heat absorption is evaporated to the gas of low-temp low-pressure.
The water temperature of hot water end system pipeline is lower than design temperature (40 ℃), and hot water backwater's pump 3 moves; The water temperature of hot water end system pipeline is higher than design temperature (45 ℃), and hot water backwater's pump 3 is out of service.
2, boiler 4 water temperatures lower than the water temperature of hot water in design temperature (50 ℃~65 ℃), external solar water heater lower than design temperature (55 ℃~70 ℃) and ambient air temperature lower than set temperature (2 ℃)
Air-source heat exchanger 12 surfaces start frosting, when surpassing, the surperficial frosting of air-source heat exchanger 12 do not set thickness, in energy storage canister 16, water temperature is lower than design temperature (40 ℃), water pump of air conditioner 15 first moves, air conditioner electric magnet valve 6 delay cut-offs are opened, the refrigerant of discharging from compressor high-pressure exhaust 1-2 separates part → by air conditioner electric magnet valve 6 → enter high pressure entry 7-1 cross valve, from the right interface 7-3 of cross valve flow out → enter interface air-condition heat exchanger 13 → from air-condition heat exchanger 13 lower interfaces flow out → enter check valve group II lower interface 11-4 → from the left interface 11-2 of check valve group II flow out → with from hot water electromagnetic valve 5, refrigerant out converges, in energy storage canister 16, water temperature reaches design temperature (42 ℃), air conditioner electric magnet valve 6 is first switched on and is closed, water pump of air conditioner 15 time delays are out of service, air conditioner electric magnet valve 6 is circulation outage and energising so, water pump of air conditioner 15 circular flow like this with stop.All the other running statuses of unit are with above-mentioned " in boiler water temperature lower than the water temperature of hot water in design temperature, external solar water heater lower than design temperature and ambient air temperature higher than set temperature ".
The surperficial frosting of air-source heat exchanger 12 reaches setting thickness; compressor 1 is first shut down; after blower fan 10 time delays, shut down; balanced solenoid valve 19 energisings are opened; after refrigerant is walked around the direct connection of heating power expansion valve I 17 high-low pressures and Fast-Balance; balanced solenoid valve 19 outages are closed; cross valve 7 outages are refrigeration mode; water pump of air conditioner 15 first moves; compressor 1 delayed startup operation; the heat of energy storage canister 16 and air conditioning terminal hot water, by the circulating of refrigerant, is transported to when air-source heat exchanger 12 surfaces, the surperficial frosting of air-source heat exchanger 12 is melted fast.
After the surperficial frost melts of air-source heat exchanger 12; compressor 1 is first shut down; water pump of air conditioner 15 time delays are out of service; balanced solenoid valve 19 energisings are opened, and after the high-low pressure Fast-Balance, balanced solenoid valve 19 outages are closed; cross valve 7 energisings are heating mode; blower fan 10 first starts, and after compressor 1 time delay, restarts, and re-starts the air-conditioning heating operation.
3, the water temperature of the interior hot water of external solar water heater is higher than design temperature (55 ℃~70 ℃)
By the operation of solar heat water pump 2, by the hot water circuit of external solar water heater input solar heat water jacket (4-2), the partition by solar water and water heats the water of boiler 4.
4, boiler 4 reaches design temperature (50 ℃~65 ℃)
Compressor 1, solar heat water pump 2, blower fan 10 cut off the power supply out of service, and cross valve 7 keeps energising for heating mode, and hot water backwater's pump 3 is pressed the automatic operation of water temperature height of hot water end system pipeline.
5, reach the purpose of hot-water supply according to above-mentioned circulation.
Four, air conditioner refrigerating+hot-water combined supplying operating mode
1, boiler 4 water temperatures are lower than design temperature, and chilled water backwater water temperature is higher than design temperature, and source pump is running refrigerating and hot-water supply simultaneously
6 energisings of air conditioner electric magnet valve are closed, and balanced solenoid valve 19 is normally closed, and cross valve 7 outages are refrigeration mode, and hot water electromagnetic valve's 5 energisings are opened, and blower fan 10 does not move.
By connecting the compressor to run a pipeline, the refrigerant is discharged through the hot water heater 4-1 → → by water entering the tank solenoid valve 5 → 21 → left entrance from the reservoir from the high pressure compressor exhaust port 1-2 Right out of the outlet tank 21 → 14 after two routes through the filter: a large upper right refrigerant inlet 22 into the economic outflow from the economy → 22 → exit right through the thermal expansion valve Ⅰ 17 → Ⅱ the right to enter a one-way valve interface 11 - 3 → from the one-way valve outflow → Ⅱ Interface 11-4 entering the air conditioning heat exchanger 13 into a four-way valve interface → 7-3 → low pressure from the right connector on the four-way valve from the air conditioning heat exchanger interface outflow → 13 7-4 → outflow outlet into the gas-liquid separator 23 from the right entrance of the gas-liquid separator →23 left back 1-2 → → export out of the low-pressure compressor discharge through the suction port of the compressor compression → and from the high-pressure compressor exhaust port 1-2; small amount of refrigerant through the thermostatic expansion valve Ⅱ 20 → 22 top left entrance into the economy → outflow from the economy 22 left into the compressor outlet nozzles → 1-3 → → compressed by the compressor 1 and from the high-pressure compressor discharge opening 1-2, so constantly circulating refrigerant.
Cold media gas by HTHP circulates in hot-water heater 4-1, and its heat is directly passed to the water in boiler 4 by hot-water heater 4-1 partition, and the water temperature of boiler is raise, and after the liquid that refrigerant condensation heat release is middle temperature high pressure, flows out.
By water pump of air conditioner 15, absorb heat the circulated refrigerated water of the refrigerant liquid of middle temperature low pressure in air-condition heat exchanger 13, make chilled water lower the temperature into cold water, the refrigerant heat absorption is evaporated to the gas of low-temp low-pressure; Cold water is delivered in end room conditioning fan coil, reaches the requirement of room conditioning refrigeration.
2, boiler 4 water temperatures and chilled water backwater water temperature are simultaneously lower than design temperature, and unit is by independent hot-water supply operation.
3, boiler 4 water temperatures and chilled water backwater water temperature are simultaneously higher than design temperature, and unit is by independent air conditioner refrigerating operation.
4, boiler 4 water temperatures are higher than design temperature, and chilled water backwater water temperature is lower than design temperature, and a compressor emergency shutdown water pump of air conditioner continues the circulation that operation maintains chilled water.
5, circulate according to this and reach the purpose of air conditioner refrigerating and hot-water supply alliance.
Five, air-conditioning heating+hot-water combined supplying operating mode
1, boiler 4 water temperatures and cooling water backwater water temperature are simultaneously lower than design temperature, and unit moves heating and hot-water supply simultaneously
Balanced solenoid valve 19 is normally closed, and hot water electromagnetic valve's 5 energisings are opened, and 6 outages of air conditioner electric magnet valve are often opened, and cross valve 7 energisings are heating mode.
By connecting the compressor to run a pipeline, the high-pressure refrigerant discharged from the compressor exhaust port 1-2 two routes: → all the way through the hot water heater through the hot water solenoid valve 4-1 → 5; another road through the air conditioning solenoid valve 6 → next four-way valve high pressure inlet 7-1, 7-3 from the four-way valve to the right connector into the air conditioning heat exchanger outflow → 13 → interfaces into a one-way valve 13 from the air conditioning heat exchanger interface outflow → Interface 11-4 → next Ⅱ Ⅱ left from a one-way valve interfaces 11-2 outflow; two refrigerant in the tank inlet 21 into the tank 21 left confluence → → outflow from the reservoir inlet 21 through the filter right outlet → After 14 two routes: a large upper right refrigerant inlet 22 into the economy → outflow from the economizer outlet → 22 right through the thermal expansion valve Ⅰ 17 → one-way valve into the right connector 11-3 → Ⅱ on a one-way valve from Ⅱ Interface 11-1 outflowInterface 8-4 → → enter the one-way valve from the left Ⅰ → Interface 8-2 outflow into the air source heat exchanger tubes of the liquid interfaces 12-3 12-2 → → through tubes on a one-way valve group Ⅰ Interface outflow from the air source heat collection tube into a one-way valve 12-1 → 8-3 → Ⅰ right connector interface from the one-way valve Ⅰ 8-1 outflow into the four-way valve → left Interface 7-2 → four-way valve low-pressure outlet from the outflow → 7-4 23 into gas-liquid separator back to the right inlet → → outflow port of the compressor low pressure suction gas-liquid separator 23 from the left outlet 1-2 → compressed by the compressor 1 → and from the high pressure compressor discharge vent 1-2; small amount of refrigerant through the thermostatic expansion valve Ⅱ 20 → 22 left upper entrance into the economic outflow → → 22 left exit from the economic into the injection port of the compressor through the compressor 1 1-3 → → and from the high pressure compressor discharge compressed exhaust port 1-2, so constantly circulating refrigerant.
Cold media gas by the part HTHP circulates in hot-water heater 4-1, and its heat is directly passed to the water in boiler 4 by hot-water heater 4-1 partition, and the water temperature of boiler 4 is raise, and after the liquid that refrigerant condensation heat release is middle temperature high pressure, flows out.
By water pump of air conditioner 15 and blower fan 10 operations, the heat in part HTHP cold media gas is passed to air-condition heat exchanger 13, and heat release is condensed into the liquid of middle temperature high pressure, makes cooling water be heated to be hot water.The refrigerant liquid of middle temperature high pressure is by the 17 restriction decompressions of heating power expansion valve I, from air-source heat exchanger 12 surface in mobile air, heat absorption is evaporated to the gas of low-temp low-pressure, and hot water is delivered in end room conditioning fan coil, reaches the requirement of room conditioning heating.
During unit operation, frosting as surperficial as air-source heat exchanger 12 reaches setting thickness, and the unit defrosting method of operation is with the independent hot-water supply of aforementioned unit or air-conditioning heating is identical separately.
2, boiler 4 water temperatures are lower than design temperature, and cooling water backwater water temperature is higher than design temperature, and source pump is by independent hot-water supply operation.
3, boiler 4 water temperatures are higher than design temperature, and cooling water backwater water temperature is lower than design temperature, and source pump is by independent air-conditioning heating operation.
When 4, boiler 4 water temperatures and cooling water backwater water temperature are simultaneously higher than design temperature, source pump is shut down a water pump of air conditioner 15 and is continued the circulation that operation maintains cooling water.
5, circulate according to this and reach the purpose of air-conditioning heating and hot-water supply alliance.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (9)

1. air-source central air-conditioning hot water tri-generation source pump, comprise compressor, solar heat water pump, hot water backwater's pump, boiler, hot water electromagnetic valve, air conditioner electric magnet valve, cross valve, check valve group I, cabinet, blower fan, check valve group II, air-source heat exchanger, air-condition heat exchanger, filter, water pump of air conditioner, energy storage canister, heating power expansion valve I, balance throttle pipe, balanced solenoid valve, heating power expansion valve II, fluid reservoir, economizer, gas-liquid separator and connecting line, it is characterized in that, be provided with hot-water heater and solar heat water jacket in described boiler, described solar heat water pump is connected with the solar heat water jacket, described hot water backwater's pump one end is connected with end hot-water heating system pipeline, the other end is connected with boiler, described boiler, air conditioner electric magnet valve, economizer and gas-liquid separator are connected with compressor respectively, and described hot water electromagnetic valve's one end is connected with boiler, and the other end is connected with fluid reservoir, described air conditioner electric magnet valve, check valve group I, gas-liquid separator and air-condition heat exchanger are connected with cross valve respectively, described check valve group I is connected with check valve group II with the air-source heat exchanger, described air-source heat exchanger comprises air-source heat exchanger separating tube, set of heat exchange tubes, air-source heat exchanger collector tube, plate fin group I and plate fin group II, described air-source heat exchanger is arranged in cabinet, also be provided with blower fan in described cabinet, described check valve group II respectively with fluid reservoir, air-condition heat exchanger, heating power expansion valve I and balance throttle pipe connect, described air-condition heat exchanger is connected with energy storage canister by the air water pump, described balanced solenoid valve respectively with economizer, heating power expansion valve I and balance throttle pipe connect, described heating power expansion valve II is connected with economizer and filter respectively, described filter is connected with energy storage canister.
2. air-source central air-conditioning hot water tri-generation source pump according to claim 1, is characterized in that, described hot-water heater is formed in parallel by many groups coil pipe.
3. air-source central air-conditioning hot water tri-generation source pump according to claim 1, is characterized in that, described solar heat water jacket is the spiral cylinder, and with boiler inner cylinder seal welding.
4. air-source central air-conditioning hot water tri-generation source pump according to claim 1, is characterized in that, described check valve group I comprises interface and check valve group I lower interface on the left interface of check valve group I, the right interface of check valve group I, check valve group I; Described check valve group I lower interface is connected with the left interface of cross valve, the left interface of check valve group I is connected with air-source heat exchanger separating tube upper inlet, the right interface of check valve group I is connected with exporting under air-source heat exchanger collector tube, and on check valve group I, interface is connected with interface on check valve group II.
5. air-source central air-conditioning hot water tri-generation source pump according to claim 1, it is characterized in that, the blower fan arranged in described cabinet comprises exhaust fan and air intake blower fan, and described exhaust fan is arranged on the cabinet top, and described air intake blower fan is arranged on the cabinet side bottom.
6. air-source central air-conditioning hot water tri-generation source pump according to claim 1, is characterized in that, described check valve group II comprises interface on check valve group II, check valve group II lower interface, the left interface of check valve group II, the right interface of check valve group II; The left interface of described check valve group II exports and is connected with fluid reservoir left entry and hot water electromagnetic valve, and the right interface of check valve group II is connected with the outlet of heating power expansion valve I and balance throttle pipe, and check valve group II lower interface is connected with the air-condition heat exchanger lower interface.
7. air-source central air-conditioning hot water tri-generation source pump according to claim 1, it is characterized in that, described plate fin group I is arranged on the outside windward of set of heat exchange tubes, described plate fin group II is arranged on the leeward inboard of set of heat exchange tubes, and the spacing of described plate fin group I fin is greater than the spacing of plate fin group II fin.
8. air-source central air-conditioning hot water tri-generation source pump according to claim 1, is characterized in that, described cabinet top is provided with four air-source heat exchangers, and air-source heat exchanger arrangement is " X " type.
9. air-source central air-conditioning hot water tri-generation source pump according to claim 1, it is characterized in that, described balanced solenoid valve entrance is connected with the outlet of economizer bottom right and heating power expansion valve I entrance respectively, and described balanced solenoid valve outlet is connected with the balance throttle pipe.
CN201310288286.3A 2013-07-10 2013-07-10 Air-source central air-conditioning hot water triple-generation heat pump unit Expired - Fee Related CN103423917B (en)

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CN104251570A (en) * 2013-06-25 2014-12-31 南京维盟空调有限公司 Air source heat pump triple generation type air conditioner unit
CN104399586A (en) * 2014-11-20 2015-03-11 福建龙净环保股份有限公司 Wet desulphurization system as well as flue gas demisting and heating device and electric demister thereof
CN105674449A (en) * 2016-03-28 2016-06-15 武汉科技大学 Triple-generation system based on energy-saving solar air source heat pump
CN105928255A (en) * 2016-06-15 2016-09-07 湖南中辐空调净化设备有限公司 Refrigeration, heating and hot water combined supply unit adopting air source heat pumps
CN107449169A (en) * 2017-08-16 2017-12-08 广东海翔教育科技有限公司 A kind of environmental protection and energy saving cooling-water machine
CN111237851B (en) * 2020-02-26 2021-03-05 沈阳中科信盈人工环境设备有限公司 High-temperature heat pump constant-temperature supply system of sweat steam room

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WO2006128262A2 (en) * 2005-06-03 2006-12-07 Springer Carrier Ltda Heat pump system with auxiliary water heating
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CN104251570A (en) * 2013-06-25 2014-12-31 南京维盟空调有限公司 Air source heat pump triple generation type air conditioner unit
CN104399586A (en) * 2014-11-20 2015-03-11 福建龙净环保股份有限公司 Wet desulphurization system as well as flue gas demisting and heating device and electric demister thereof
CN105674449A (en) * 2016-03-28 2016-06-15 武汉科技大学 Triple-generation system based on energy-saving solar air source heat pump
CN105928255A (en) * 2016-06-15 2016-09-07 湖南中辐空调净化设备有限公司 Refrigeration, heating and hot water combined supply unit adopting air source heat pumps
CN107449169A (en) * 2017-08-16 2017-12-08 广东海翔教育科技有限公司 A kind of environmental protection and energy saving cooling-water machine
CN111237851B (en) * 2020-02-26 2021-03-05 沈阳中科信盈人工环境设备有限公司 High-temperature heat pump constant-temperature supply system of sweat steam room

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