CN203572093U

CN203572093U - Hot water CCHP heat pump unit of air-source central air conditioner

Info

Publication number: CN203572093U
Application number: CN201320408744.8U
Authority: CN
Inventors: 秦文选
Original assignee: HUNAN FUTURA TO ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY ENGINEERING Co Ltd
Current assignee: HUNAN FUTURA TO ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY ENGINEERING Co Ltd
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2014-04-30
Anticipated expiration: 2023-07-10

Abstract

A hot water CCHP heat pump unit of an air-source central air conditioner comprises a compressor, a solar hot water pump, a hot return water pump, a hot water tank, a hot water electromagnetic valve, an air conditioning electronic valve, a four-way valve, a check valve set I, a box, a fan, a check valve set II, an air-course heat exchanger, an air conditioning heat exchanger, a filter, an air-conditioning circulating water pump, an energy storage tank, a thermostatic expansion valve I, a balance throttle pipe, a balance electronic valve, a thermostatic expansion valve II, a liquid storage tank, an economizer, a gas-liquid separator and a connecting pipeline; with the balance throttle pipe, the check valve set, the hot water tank and the air-source heat exchanger, the defect that a traditional ground-source heat pump set is not applicable to for promotion in areas with big construction density and projects with relatively big air conditioning loads is overcome and source efficiency ratio is increased effectively; and the heat pump unit provides sanitary hot water at 65 DEG C and has double water heating functions including outputting the hot water directly through tap water pressure and heating water by both the air source and solar energy, and no electric-assistant heating is needed in heating at 20 DEG C below zero in winter.

Description

Air-source central air-conditioning hot water tri-generation source pump

Technical field

The utility model relates to central air-conditioning heat-supplying refrigeration technology field, is 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, by water, do medium and underground shallow layer soil, rivers and underground water source carry out cold and hot exchange, by earth source heat pump unit, water is carried out to cold and hot exchange, by a small amount of high-grade electric energy of input, 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.

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 quality problems unrepairable exists subsurface geology to change and the hidden danger of the damage of construction reconstruction; In earth source heat pump unit running process, need a large amount of to carry out cold and hot exchange with underground, when underground cold 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 underground buried tube floor space is large, therefore earth source heat pump is not suitable for promoting, and be relatively suitable for area and the less construction project of air conditioner load that site coverage is little in the large area of site coverage and the larger construction project of air conditioner load.

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 compressor high-pressure exhaust, discharge, enter the liquid that condenser heat release is condensed into middle temperature high pressure, the liquid that is middle temperature low pressure by 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 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 during winter heating because finned heat exchanger spacing of fin is overstocked, cause slight frosting heat exchanger to get clogged, affect circulation of air and heat exchange amount sharply declines, need frequent defrosting to maintain the circulation of air, need auxiliary a large amount of high-grade electric energy heatings simultaneously, thereby cause 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

By cooling tower+mono-cold-heat pump unit, reach the requirement of refrigeration and hot water supply summer, 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, winter is by gas-fired water heating boiler or oil burning boiler or coal-burning boiler reaches heating and hot water is supplied, and 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 maintenance technique requires highly, for grassroot project, has belonged to and having eliminated and proposed recommendations unit not.

utility model content

The technical problem that the utility model solves 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 large area of 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 source effect than low problem simultaneously; And provide 65 ℃ of health hot waters, efficiently solved when spring and autumn, transition season refrigeration was with hot water combined running, refrigeration is not enough causes the problem that 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 above-mentioned background technology.

The technical problem that the utility model solves realizes by the following technical solutions:

Air-source central air-conditioning hot water tri-generation source pump, comprises 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, Air-conditioning Cycle water pump, 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, in described boiler, be provided with hot-water heater and solar heat water jacket, described solar heat water pump is connected with 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 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 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, in described cabinet, be also provided with blower fan, 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 Air-conditioning Cycle 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 utility model, described hot-water heater is formed in parallel by organizing coil pipe more, 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 utility model, described solar heat water jacket is spiral cylinder, and spiral cylinder has increased partition heat exchange area, and guiding solar water, along helical flow, improves heat exchange efficiency; Solar heat water jacket and boiler inner cylinder seal welding, external solar water and hot water in boiler are 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 utility model, described check valve group I comprises interface and check valve group I lower interface in 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, in check valve group I, interface is connected with interface in 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 enter to go out; Its effect 1 guarantees that the oil return of lubricating oil gravity and oil return in refrigerant are smooth, its refrigerant acting 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 utility model, the blower fan arranging in described cabinet comprises exhaust fan and air intake blower fan, described exhaust fan is arranged on cabinet top, described air intake blower fan is arranged on cabinet side bottom, can reach the more uniform requirement of air quantity by fins set on air-source heat exchanger, improve the heat exchange efficiency of air-source heat exchanger; Use a large blower fan to compare with traditional approach, cost increases few, but performance improves and running noises reduces larger.

In the utility model, described check valve group II comprises interface in 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 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 utility model, 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 inner side 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, windward side spacing of fin is greater than the structure of lee face, makes after heat exchange frosting the 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 having produced on fin, also can from mobile air, absorb heat and part distillation, the speed that causes frosting thickness to increase is slower, even if environment temperature is in the most serious scope of 0～-5 ℃ of frosting, the time that frosting reaches 1mm needs more than 8 hours, and heat exchanger can be with frost to carry out high energy efficiency ratio heat exchange for a long time, and heat exchanger does not need frequent defrosting, do not need electric additional heat also can guarantee heating effect, the Energy Efficiency Ratio of Gu Qi winter heating is higher.Temperature-5 ℃ are following reduces because of water in air steam, fin surface frosting is tending towards reducing on the contrary, can pass through the plate fin heat exchanger that air-source heat exchanger two groups of fins set spacing differences, spacing and heat exchange areas strengthen, realize frosting time, minimizing defrosting number of times, release frosting even, that reduce between frosting degree, twice defrosting of prolongation and cause too early the obstruction in air channel between air-source heat exchanger fin, the effect that improves evaporating temperature or reduction condensation temperature.Conventional air source plate formula finned heat exchanger fin pitch is from identical, outside having windward, fin and leeward inner side 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 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 heat exchanger defrosting, unit needs the auxiliary effect that heats guarantee heating of a large amount of electricity, and the Energy Efficiency Ratio of Gu Qi winter heating is lower.

In the utility model, described cabinet top is provided with four air-source heat exchangers, air-source heat exchanger arrangement is " X " type, cabinet top is divided into 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 clean outside fin on air-source heat exchanger, inner side fin is difficult to clean up.

In the utility model, 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 balance throttle pipe; The throttling action of balance throttle pipe: prevent that the impact producing when high-low pressure refrigerant is ganged up is excessive; protection part and pipeline are not damaged; after 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 is directly communicated with; reach the requirement of high-low pressure refrigerant Fast-Balance, after coolant system high-low pressure is in a basic balance, then changes cross valve and start 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 producing when efficiently solving 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 utility model, 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 fin surface rapid frost melting, fin frosting starts defrosting from inside, 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 object of unit operation Energy Efficiency Ratio.

In the utility model, described compressor comprises low pressure air suction mouth, high-pressure exhaust and puff prot.

In the utility model, during described economizer one side is a small amount of the refrigerant liquid of warm low pressure with a large amount of by 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 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 utility model, in described coolant circulating system, in boiler, the refrigerant pipeline of hot-water heater and air-condition heat exchanger is connected to parallel way, and flow Distance Shortened and resistance of its refrigerant reduces, and compressor power consumption reduced and systematic energy efficiency ratio raising.

In the utility model, described fluid reservoir comprises fluid reservoir left entry and the right outlet of fluid reservoir.

In the utility model, 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 utility model, by the operation of solar heat water pump, by in the hot water circuit input solar heat water jacket of external solar water heater, the heat of solar water heats the water in boiler by partition, realizes solar water and is organically combined with air source heat pump hot water; Water in the direct heat hot water tank of hot-water heater, saves hot water circulation heated water pump; Boiler directly utilizes tap water pressure pressurization, by the operation of hot water backwater's pump, will in the water input boiler of end hot-water heating system pipeline, heat, and reaches end hot-water heating system water and opens tap for the requirement of water with pressure and hot water; Final hot water or cold water are delivered in 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 utility model, heat pump unit is provided with controller, according to the operation of working condition requirement automatic control compressor, Air-conditioning Cycle water pump, hot water backwater's pump, solar heat water pump, blower fan with stop, start and close air conditioner electric magnet valve, hot water electromagnetic valve, balanced solenoid valve, controlling the conversion of cross valve, by the operation of compressor, refrigerant is compressed to the gas of HTHP, from the high-pressure exhaust of compressor, discharge, the gas of HTHP is at 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 of middle temperature high pressure is the liquid of middle temperature low pressure by the restriction isothermal decompression of heating power expansion valve, the liquid of middle temperature low pressure is at 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 is constantly 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, 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, absorbs heat from mobile air by fin, flows out after being evaporated to the gas of low-temp low-pressure, by the operation of Air-conditioning Cycle water pump, 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 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, and refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure, to realize function separately.

In the utility model, 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 air conditioner electric magnet valve is often opened, and cross valve no power is refrigeration mode.

1, chilled water backwater water temperature is higher than design temperature (12 ℃)

Through the connecting pipe and the operation of the compressor, the refrigerant from the compressor exhaust port, the air solenoid valve, into the four way valve under high pressure from the entrance, four valve, one-way valve outflow left interface into group I interface, from one-way valve group I left interface outflow, into the air source heat exchanger fluid pipe on the interface, the air source heat exchanger tube group, from the air source heat exchanger fluid collection tube interface, enter the outflow of one-way valve group Ⅰ right interface, from one-way valve group Ⅰ interfaces on the outflow, into a one-way valve group Ⅱ interface, from one-way valve group II left out, into the liquid storage interface tank left entrance, from the liquid storage tank right outlet, through the filter is divided into two paths: a lot of refrigerant into the economy is right on the entrance, from the economizer outlet, the lower right through thermal expansion valve, check valve group II I enter the right interface, from one-way valve group Ⅱ interface outflow, into the air conditioning heat exchanger the interface, from the air conditioning heat exchanger interface outflow, four way valve into the right interface, from the four port valve low pressure outlet, enters the gas-liquid separator, gas-liquid separator right entrance from the left outlet, back to the low pressure compressor suction opening, through the compressor compression → and discharged from the compressor outlet; a small amount of refrigerant through thermal expansion valve II, entering economizer upper left entrance, from the economizer left outlet, enters the compressor air jets, and discharged from the compressor outlet through the compressor and refrigerant circulation flow, so constantly; the circulating water pump and air conditioning machine operation, high temperature and high pressure refrigerant gas heat to the air source heat exchanger surface flow of air, the refrigerant heat condensation is a medium temperature high pressure liquid; a lot of refrigerant liquid temperature low pressure from the air conditioner in the cycle of freezing water in the heat exchanger to absorb heat, chilled water cooling into cold water, the refrigerant heat absorption and evaporation into a gas at low temperature and low pressure; cold water to end the indoor air-conditioning fan coil, realizes the indoor air-conditioning refrigeration.

2, chilled water backwater water temperature is lower than design temperature (10 ℃)

Compressors and Fans power-off is out of service, and Air-conditioning Cycle water pump continues operation and maintains circulating of chilled water.

3, according to above-mentioned circulation, realize air conditioner refrigerating and automatically regulate operation.

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 air conditioner electric magnet valve is often opened, and cross valve energising is heating mode.

Through the connecting pipe and the operation of the compressor, the refrigerant from the compressor exhaust port, the air solenoid valve, into the four way valve pressure from the entrance, four valve right outflow, interface into the air conditioning heat exchanger interface, from the air conditioning heat exchanger under flow, entering the one-way valve interface interface, from group II a one-way valve group II left interface outflow, into the liquid storage tank left entrance, from the liquid storage tank right outlet, through the filter is divided into two paths: a lot of refrigerant into the economy is right on the entrance, from the economizer outlet, the lower right through thermal expansion valve, check valve group II I enter the right interface, from one-way valve group Ⅱ interface outflow, into the one-way valve group Ⅰ on interface, from one-way valve group Ⅰ interface outflow, right into the air source heat exchanger fluid pipe interface, through the air source heat exchanger tube group, from the air source heat exchanger fluid collection tube interface, enter the one-way valve group Ⅰ outflow the right interface, from one-way valve group Ⅰ interface, enter the four under the outflow valve left interface, from four way valve low pressure outlet, enters the gas-liquid separator, gas-liquid separator right entrance from the left outlet, back to the low pressure compressor suction opening, through the compressor compression → and discharged from the compressor outlet; a small amount of refrigerant through thermal expansion valve II, entering economizer upper left entrance, from the economizer outlet, the lower left into the compressor air inlet, through the compressor, and discharged from the compressor outlet, a refrigerant circulation flow so constantly; the circulating pump and air conditioning fan operation, high temperature and high pressure refrigerant gas heat to the air heat exchanger, heat condensation is a medium temperature high pressure liquid, the cooling water is heated into hot water; refrigerant liquid temperature and pressure by thermal expansion valve 1 throttle decompression, the surface of the heat exchanger on the flow of air from the air source, heat absorption and evaporation into a gas at low temperature and low pressure, hot water to the end of indoor air conditioning fan coil, realizes the indoor air 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 surface starts frosting, and when thickness surpass is not 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 blower fan time delay, shut down, Air-conditioning Cycle water pump continues operation and maintains circulating of cooling water, balanced solenoid valve energising is opened, refrigerant is walked around heating power expansion valve I high-low pressure and is directly communicated with after Fast-Balance, balanced solenoid valve power-off is closed, cross valve power-off is refrigeration mode, compressor start operation, the heat of hot water in energy storage canister, by the circulating of refrigerant, is transported to when 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; Air-conditioning Cycle water pump continues operation and maintains circulating of cooling water; balanced solenoid valve energising is opened, and after high-low pressure Fast-Balance, balanced solenoid valve power-off is closed; cross valve energising is heating mode; blower fan first starts, and after compressor time delay, restarts, and re-starts air-conditioning heating operation.

3, cooling water backwater water temperature is higher than design temperature (42 ℃)

Compressor, blower fan power-off are out of service, and it is heating mode that cross valve keeps power-off, and Air-conditioning Cycle water pump continues operation and maintains circulating of cooling water.

4, according to above-mentioned circulation, realize air-conditioning heating and automatically regulate operation.

Three, independent hot-water supply operating mode

1, 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 Air-conditioning Cycle water pump do not move, and the energising of air conditioner electric magnet valve is closed, and balanced solenoid valve is normally closed, and cross valve energising is heating mode, and hot water electromagnetic valve's energising is opened.

By the operation of connecting line and compressor, refrigerant from compressor high-pressure exhaust discharge → by hot-water heater boiler → by hot water electromagnetic valve → enter fluid reservoir left entry → from the right outlet of fluid reservoir flow out → by filter minute two-way: a large amount of refrigerants enter that economizer upper right entrance → outlet outflow from economizer bottom right → interface air-source heat exchanger separating tube → the right interface of check valve group I → from check valve group I lower interface, flowing out → enter the low tension outlet of the left interface of cross valve → from cross valve flows out → enter gas-liquid separator left entry → flow out → get back to compressor low pressure air suction mouth → by compressor compresses → discharge from compressor high-pressure exhaust again from the right outlet of gas-liquid separator by air-source heat exchanger heat-exchanging tube group → flow out → enter from air-source heat exchanger collector tube lower interface by the interface of heating power expansion valve I → the enter right interface of check valve group II → check valve group II, to flow out → enter interface in check valve group I → flow out → enter from the left interface of check valve group I, by heating power expansion valve II → enter economizer upper left entrance → flow out → enter into from the outlet of economizer lower-left, compressor puff prot → by compressor compresses → discharge from compressor high-pressure exhaust again, refrigerant so constantly circulates realizes independent hot-water supply to a small amount of refrigerant.

Cold media gas by HTHP circulates in hot-water heater, and its heat is directly passed to the water in boiler by hot-water heater partition, and the water temperature of boiler is raise, and refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure; By the operation of blower fan, the refrigerant liquid of middle temperature low pressure absorbs heat in mobile air from air-source heat exchanger surface, and 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, 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 ℃)

Air-source heat exchanger surface starts frosting, when not 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 ℃), Air-conditioning Cycle water pump first moves, air conditioner electric magnet valve delay cut-off is opened, the refrigerant of discharging from 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 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 hot water electromagnetic valve's refrigerant out, converge, in energy storage canister, water temperature reaches design temperature (42 ℃), air conditioner electric magnet valve is first switched on and is closed, the time delay of Air-conditioning Cycle water pump is out of service, air conditioner electric magnet valve so circulate power-off and energising, the circular flow like this of Air-conditioning Cycle water pump 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 blower fan time delay, shut down, balanced solenoid valve energising is opened, refrigerant is walked around after the direct connection of heating power expansion valve I high-low pressure and Fast-Balance, balanced solenoid valve power-off is closed, cross valve power-off is refrigeration mode, Air-conditioning Cycle water pump 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 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 time delay of Air-conditioning Cycle water pump is out of service; balanced solenoid valve energising is opened, and after high-low pressure Fast-Balance, balanced solenoid valve power-off is closed; cross valve energising is heating mode; blower fan first starts, and after compressor time delay, restarts, and re-starts 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 input solar heat water jacket of external solar water heater, 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 power-off are out of service, and cross valve keeps energising for heating mode, and the water temperature height that hot water backwater's pump press hot water end system pipeline moves automatically.

5, according to above-mentioned circulation, reach the object of hot-water supply.

Four, air conditioner refrigerating+hot-water combined supplying operating mode

1, 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 cross valve power-off is refrigeration mode, and hot water electromagnetic valve's energising is opened, and blower fan does not move.

By the operation of connecting line and compressor, refrigerant from compressor high-pressure exhaust discharge → by hot-water heater boiler → by hot water electromagnetic valve → enter fluid reservoir left entry → from the right outlet of fluid reservoir flow out → by filter minute two-way: a large amount of refrigerants enter economizer upper right entrance → outlet outflow from economizer bottom right → by heating power expansion valve I → the enter right interface of check valve group II → flowing out → enter the interface of air-condition heat exchanger lower interface → from air-condition heat exchanger from check valve group II lower interface flows out → enter the low tension outlet of the right interface of cross valve → from cross valve and flow out → enter gas-liquid separator right entry → flow out → get back to compressor low pressure air suction mouth → by compressor compresses → discharge from compressor high-pressure exhaust again from the left outlet of gas-liquid separator, by heating power expansion valve II → enter economizer upper left entrance → flow out → enter into from the outlet of economizer lower-left, compressor puff prot → by compressor compresses → discharge from compressor high-pressure exhaust again, refrigerant so constantly circulates a small amount of refrigerant, cold media gas by HTHP circulates in hot-water heater, and its heat is directly passed to the water in boiler by hot-water heater partition, and the water temperature of boiler is raise, and refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure, by Air-conditioning Cycle water pump, the circulated refrigerated water of the refrigerant liquid of middle temperature low pressure in air-condition heat exchanger, absorb heat, make chilled water lower the temperature into cold water, refrigerant heat absorption is evaporated to the gas of low-temp low-pressure, cold water is delivered in end room conditioning fan coil, realizes room conditioning 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, 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 Air-conditioning Cycle water pump continues the circulation that operation maintains chilled water.

5, circulate according to this and reach the object 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 power-off of air conditioner electric magnet valve is often opened, and cross valve energising is heating mode.

Through the connecting pipe and the operation of the compressor, the refrigerant discharged from the compressor outlet is divided into two paths: one way is through the hot water tank, hot water heater and the hot water electromagnetic valve; another way to enter through the air solenoid valve and four valve under high pressure from the entrance, four valve interface flow out, right into the air conditioning heat device interface, from the air conditioning heat exchanger under outflow, into the interface valve group Ⅱ interface, the outflow from the one-way valve group II left interface; two refrigerant enters into the liquid storage tank, the liquid storage tank left entrance entrance confluence, from the liquid storage tank right outlet, through the filter is divided into two paths: a lot of refrigerant enter the economy is right on the entrance to the economizer outlet, the lower right through thermal expansion valve, check valve group II I enter the right interface, from one-way valve group Ⅱ interface outflow, into the one-way valve group Ⅰ on interface, from one-way valve group I left interface outflow, into the air source heat exchanger fluid pipe on the interface, the air source heat exchanger tube group, from the air source heat exchanger fluid collection tube interface, enter the outflow of one-way valve group Ⅰ right interface, from one-way valve group Ⅰ interface, enter the four under the outflow valve left interface, from four way valve on the outlet stream of low pressure A gas-liquid separator, into the right entrance, outflow, from the gas-liquid separator left export back to the compressor low pressure air suction port, and discharged from the compressor outlet through the compressor compression →; a small amount of refrigerant through thermal expansion valve II, entering economizer upper left entrance, from the economizer outlet, the lower left into the compressor air inlet, through compressor compression, and discharged from the compressor outlet, so the refrigerant continuously circulating flow; circulation flow in the water heater in the high temperature and high pressure refrigerant gas part, its heat by hot water heater wall directly to the hot water in the water tank, the water temperature of the hot water tank is increased, the refrigerant condensation temperature high pressure liquid flows out through the air; circulating water pump and fan operation, part of the high temperature high pressure refrigerant gas heat to the air heat exchanger, heat condensation is a medium temperature high pressure liquid, the cooling water for the hot water heating.The refrigerant liquid of middle temperature high pressure reduces pressure by heating power expansion valve I restriction, and from 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 source pump operation, as 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, 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, 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 Air-conditioning Cycle water pump continues the circulation that operation maintains cooling water.

5, circulate according to this and reach the object of air-conditioning heating and hot-water supply alliance.

Above-mentioned five operating modes according to needs in season, are selected arbitrarily operation by user on generator set controller.

beneficial effect

1, the utility model environmental protection and energy saving 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 utility model: air-source heat exchanger is air-cooled, fin easy to clean, 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 utility model, transition season refrigeration is with hot water combined running, refrigeration is not enough causes the problem that hot water heating temperature is inadequate, has realized the temperature prioritised intelligent function of hot water heating;

4, the utility model 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, the utility model cost performance 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 utility model conforms extensively: can within the scope of the height temperature of-20 ℃～46 ℃, use.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

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 utility model 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 utility model.

Fig. 5 is medium-sized air-source module source pump schematic diagram in the utility model.

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 utility model complete set of equipments schematic diagram.

Fig. 8 is heat source tower schematic diagram in the utility model.

the specific embodiment

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

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, comprises 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, 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 in 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, Air-conditioning Cycle water pump 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 heating, 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, be arranged on together with large-scale air source heat exchanger 25 in heat source tower 24 is located at large-scale source pump 28 inconvenience, 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, Air-conditioning Cycle water pump 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.

By connecting pipelines and compressor 1 operation, a refrigerant from the compressor high pressure exhaust discharge port 1-2, the air solenoid valve 6 to enter the four way valve under high pressure from the entrance 7-1 → four valve left interface 7-2 outflow, into the one-way valve group Ⅰ interface 8-1 → from one-way valve group I left interface 8-2 outflow, into the air source heat exchanger fluid pipe 12-3 interface, through the heat exchanger tube group 12-2 → from air source heat exchanger fluid collection tube 12-1 interface outflow, into the one-way valve group Ⅰ right interface 8-3 → from one-way valve group Ⅰ on interface 8-4 outflow, into the one-way valve group Ⅱ interface 11-1 → from one-way valve group II left interface 11-2 outflow, into the liquid storage tank 21 left entrance, from the liquid storage tank 21 right outlet, through filter 14 is divided into two paths: a lot of the refrigerant entering economizer 22 right on the entrance, from the economizer 22 right lower outlet, through thermal expansion valve Ⅰ 17, entering the one-way valve group II right interface 11-3, from one-way valve group Ⅱ interface 11-4 outflow, into the air conditioning heat exchanger 13 interface, from the air conditioning heat exchanger 13 interface outflow, into the four valve right interface 7-3, from four way valve low voltage outlet outflow of 7-4 → into gas-liquid separator 23 right, 23 left from the entrance of gas-liquid separator outlet stream Out, back to the low pressure compressor suction through the compressor compression → 1-2 → 1 and from the compressor high pressure exhaust discharge port 1-2; a small amount of refrigerant through thermal expansion valve II 20, enter the economic 22 left entrance, from the economizer 22 left lower outlet and into the compressor air inlet through the compressor compression → 1-3 → 1 and from the compressor high pressure gas discharge port 1-2, so the refrigerant continuously circulating flow.

Operation by Air-conditioning Cycle water pump 15 with blower fan 10, the heat in HTHP cold media gas is passed to the air-source heat exchanger 12 upper mobile air in surface, and refrigerant heat release is condensed into the liquid of middle temperature high pressure; In a large amount of, the circulated refrigerated water of the refrigerant liquid of warm low pressure in air-condition heat exchanger 13, absorb heat, make chilled water lower the temperature into cold water, 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.

Compressor 1, blower fan 10 power-off are out of service, and Air-conditioning Cycle water pump 15 continues operation and maintains circulating of chilled water.

3, according to above-mentioned circulation, reach the object that air conditioner refrigerating regulates operation automatically.

Two, independent air-conditioning heating operating mode

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 pipelines and compressor 1 operation, a refrigerant from the compressor high pressure exhaust discharge port 1-2, the air solenoid valve 6 to enter the four way valve high-pressure entrance 7-1, from four way valve right interface 7-3 outflow, into the air conditioning heat exchanger 13 interface, from the air conditioning heat exchanger 13 interface, enter the one-way flow valve group Ⅱ interface 11-4 → from one-way valve group II left interface 11-2 outflow, into the liquid storage tank 21 left entrance, out from the liquid storage tank, 21 right exit through the filter 14 is divided into two paths: a lot of the refrigerant entering economizer 22 right on the entrance, from the economizer 22 right lower outlet, through thermal expansion valve 1 17 → into one-way valve group II right interface 11-3 → from one-way valve group Ⅱ interface 11-1 outflow, into the one-way valve group Ⅰ on interface 8-4 → from one-way valve group Ⅰ right interface 8-2 outflow, into the air source heat exchanger fluid pipe 12-3 interface, through the heat exchanger tube group 12-2 → from air air source heat exchanger fluid collection tube 12-1 interface outflow, into the one-way valve group Ⅰ right interface 8-3 → from one-way valve group Ⅰ 8-1 interface, enter the four under the outflow valve left interface 7-2, from four way valve low voltage outlet outflow of 7-4 → into gas-liquid separator 23 right, 23 left from the entrance of gas-liquid separator outlet stream Out, back to the low pressure compressor suction through the compressor compression → 1-2 → 1 and from the compressor high pressure exhaust discharge port 1-2; a small amount of refrigerant through thermal expansion valve II 20, enter the economic 22 left entrance, from the economizer 22 left lower outlet and into the compressor air inlet 1-3 → 1 compression, and from the compressor pressure the exhaust port 1-2 is discharged through the compressor, so the refrigerant continuously circulating flow.

By Air-conditioning Cycle water pump 15 and fan operation, the heat in 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 reduces pressure by heating power expansion valve I 17 restrictions, 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.

Air-source heat exchanger 12 surface starts frostings, when the surperficial frosting of air-source heat exchanger 12 does not surpass, sets thickness, and 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; Air-conditioning Cycle water pump 15 continues operation and maintains circulating of cooling water; balanced solenoid valve 19 energisings are opened; refrigerant is walked around heating power expansion valve I 17 high-low pressures and is directly communicated with after Fast-Balance; balanced solenoid valve 19 power-off are closed; cross valve 7 power-off 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; Air-conditioning Cycle water pump 15 continues operation and maintains circulating of cooling water; balanced solenoid valve 19 energisings are opened, and after high-low pressure Fast-Balance, balanced solenoid valve 19 power-off are closed; cross valve 17 energisings are heating mode; blower fan 10 first starts, and after compressor 1 time delay, restarts, and re-starts air-conditioning heating operation.

Compressor 1, blower fan 10 power-off are out of service, and it is heating mode that cross valve 7 keeps power-off, and Air-conditioning Cycle water pump 15 continues operation and maintains circulating of cooling water.

4, according to above-mentioned circulation, reach the object that air-conditioning heating regulates operation 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 Air-conditioning Cycle water pump 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 pipelines and compressor 1 operation, a refrigerant from the compressor high pressure exhaust discharge port 1-2 → 5 → into the liquid storage tank 21 left entrance, out from the liquid storage tank, 21 right exit through the filter 14 is divided into two paths through the hot water heater 4-1 → through hot water electromagnetic valve: a lot of refrigerant into the economy is right on the 22 from the entrance, economizer 22 right lower outlet, through thermal expansion valve Ⅰ 17, entering the one-way valve group II right interface 11-3 → from one-way valve group Ⅱ interface 11-1 outflow, into the one-way valve group Ⅰ on interface 8-4 → from one-way valve group I left interface 8-2 outflow, into the air source heat exchanger fluid tube 12-3 interface, through the heat exchanger tube group 12-2 → from air source heat exchanger fluid collection tube 12-1 interface outflow, into the one-way valve group Ⅰ right interface 8-3 → from one-way valve group Ⅰ 8-1 interface, enter the four under the outflow valve left interface 7-2, from four way valve low voltage outlet 7-4 outflow, into the the gas-liquid separator 21 left, 21 right entrance from the gas-liquid separator outlet, back to the compressor low pressure air suction port 1-2 → 1 → through the compressor compression from the compressor high pressure exhaust discharge port 1-2; a small amount of refrigerant through thermal expansion valve II 20, enter the economic 22 left entrance, from the economy 22 the left outlet and into the compressor air inlet through the compressor compression → 1-3 → 1 and from the compressor high pressure exhaust discharge port 1-2, so the refrigerant continuously circulating flow.

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 partition, and boiler 4 water temperatures are raise, and refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure.

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 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 not 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 ℃), Air-conditioning Cycle water pump 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, converge, in energy storage canister 16, water temperature reaches design temperature (42 ℃), air conditioner electric magnet valve 6 is first switched on and is closed, 15 time delays of Air-conditioning Cycle water pump are out of service, air conditioner electric magnet valve 6 circulation power-off like this and energising, Air-conditioning Cycle water pump 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; refrigerant is walked around after the direct connection of heating power expansion valve I 17 high-low pressures and Fast-Balance; balanced solenoid valve 19 power-off are closed; cross valve 7 power-off are refrigeration mode; Air-conditioning Cycle water pump 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; 15 time delays of Air-conditioning Cycle water pump are out of service; balanced solenoid valve 19 energisings are opened, and after high-low pressure Fast-Balance, balanced solenoid valve 19 power-off are closed; cross valve 7 energisings are heating mode; blower fan 10 first starts, and after compressor 1 time delay, restarts, and re-starts air-conditioning heating operation.

By the operation of solar heat water pump 2, by the hot water circuit input solar heat water jacket 4-2 of external solar water heater, 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 power-off are out of service, and cross valve 7 keeps energising for heating mode, and the water temperature height that hot water backwater's pump 3 press hot water end system pipeline moves automatically.

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 power-off are refrigeration mode, and hot water electromagnetic valve's 5 energisings are opened, and blower fan 10 does not move.

By the operation of connecting line and compressor 1, refrigerant from compressor high-pressure exhaust 1-2 discharge → by hot-water heater 4-1 → by hot water electromagnetic valve 5 → enter fluid reservoir 21 left entries → from the right outlet of fluid reservoir 21 flow out → by filter 14 minute two-way: a large amount of refrigerants enter economizer 22 upper right entrances → export from economizer 22 bottom rights outflow → by heating power expansion valve I 17 → the enter right interface 11-3 of check valve group II → flowing out → enter the interface of air-condition heat exchanger 13 lower interfaces → from air-condition heat exchanger 13 from check valve group II lower interface 11-4 flows out → enter the low tension outlet 7-4 of the right interface 7-3 of cross valve → from cross valve and flow out → enter gas-liquid separator 23 right entries → flow out → get back to compressor low pressure air suction mouth 1-2 → compress → discharge from compressor high-pressure exhaust 1-2 again by compressor 1 from the left outlet of gas-liquid separator 23, a small amount of refrigerant is by heating power expansion valve II 20 → enter economizer 22 upper left entrances → flow out → enter into compressor puff prot 1-3 → compress → discharge from compressor high-pressure exhaust 1-2 again by compressor 1 from economizer 22 lower-lefts outlets, and refrigerant like this constantly circulates.

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 partition, and the water temperature of boiler is raise, and refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure.

By Air-conditioning Cycle water pump 15, the circulated refrigerated water of the refrigerant liquid of middle temperature low pressure in air-condition heat exchanger 13, absorb heat, make chilled water lower the temperature into cold water, 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 Air-conditioning Cycle water pump continues the circulation that operation maintains chilled water.

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 power-off of air conditioner electric magnet valve are often opened, and cross valve 7 energisings are heating mode.

By connecting pipelines and compressor 1 operation, a refrigerant from the compressor high pressure exhaust discharge port 1-2 is divided into two paths: - all the way through the water heater 4-1 → through hot water solenoid valve 5; another group through air solenoid valve 6 to enter the four way valve under high pressure from the entrance 7-1, four valve 7-3 outflow, into the right interface air conditioning heat exchanger 13 interface, from the air conditioning heat exchanger 13 interface outflow, into the one-way valve group Ⅱ interface 11-4 → from one-way valve group II left interface 11-2 outflow; two refrigerant enters into the liquid storage tank in tank 21 → 21 → entrance converging left entrance from the liquid storage tank 21 right outlet stream out, through the filter 14 is divided into two paths: a lot of the refrigerant entering economizer 22 right on the entrance, from the economizer 22 right lower outlet, through thermal expansion valve Ⅰ 17, entering the one-way valve group II right interface 11-3 → from one-way valve group Ⅱ interface 11-1 outflow, into the one-way valve group Ⅰ on interface 8-4 → from the one-way valve group I left interface 8-2 outflow, into the air source heat exchanger fluid pipe 12-3 interface, through the heat exchanger tube group 12-2 → from air source heat exchanger fluid collection tube 12-1 interface outflow, into the one-way valve group Ⅰ right interface 8-3 → from one-way valve group Ⅰ 8-1 outflow, into the interface four way Valve left interface 7-2, from four way valve low voltage outlet outflow of 7-4 → into gas-liquid separator 23 right, 23 left from the entrance of gas-liquid separator outlet, back to the compressor low pressure air suction port 1-2 → 1 → through the compressor compression from the compressor high pressure exhaust discharge port 1-2; a small amount of refrigerant through thermal expansion valve II 20, into the economy 22 left on the entrance, from the economizer 22 left lower outlet and into the compressor air inlet through the compressor compression → 1-3 → 1 and from the compressor high pressure exhaust discharge port 1-2, so the refrigerant continuously circulating flow.

Cold media gas by 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 refrigerant condensation heat release is to flow out after the liquid of middle temperature high pressure.

By Air-conditioning Cycle water pump 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 reduces pressure by heating power expansion valve I 17 restrictions, 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 in 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 an Air-conditioning Cycle water pump 15 and is continued the circulation that operation maintains cooling water.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. air-source central air-conditioning hot water tri-generation source pump, comprises 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, Air-conditioning Cycle water pump, 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, in described boiler, be provided with hot-water heater and solar heat water jacket, described solar heat water pump is connected with 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 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 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, in described cabinet, be also provided with blower fan, 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 Air-conditioning Cycle 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 organizing coil pipe more.

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 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 in 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 in check valve group I, interface is connected with interface in 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 arranging in described cabinet comprises exhaust fan and air intake blower fan, and described exhaust fan is arranged on cabinet top, and described air intake blower fan is arranged on 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 in 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 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 inner side 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 balance throttle pipe.