CN103423917B - 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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CN103423917B
CN103423917B CN201310288286.3A CN201310288286A CN103423917B CN 103423917 B CN103423917 B CN 103423917B CN 201310288286 A CN201310288286 A CN 201310288286A CN 103423917 B CN103423917 B CN 103423917B
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air
valve
water
interface
hot water
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CN201310288286.3A
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CN103423917A (en
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秦文选
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湖南富利来环保科技工程有限公司
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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 underground shallow layer soil, or rivers, or in underground water source, or directly extract rivers or underground water source, medium and underground shallow layer soil is done by water, rivers and underground water source carry out cold and hot exchange, by earth source heat pump unit, cold and hot exchange is carried out to water, namely by inputting a small amount of high-grade electric energy, by underground shallow layer soil, rivers and the cold and hot of underground water source middle-low grade can be promoted to high-grade cold and hot energy, cold and hotly to be utilized high-grade by fan coil and hot water circulating pump again, reach annual hot water, the requirement of air conditioner refrigerating and heating trilogy supply.
Earth source heat pump unit is at present most energy saving, comprehensive energy efficiency is than the highest, unit operation stablizes the impact of not climate, but the cost of its underground shallow layer soil pipe laying mode is large and comprehensive method of investment benefit is low, although the cost of direct extraction river or underground water source mode is lower, because the impact changed by water level and geology is applied very greatly less.The application of earth source heat pump unit, generally needs to carry out a large amount of hidden pipe laying engineering, quality problems unrepairable in underground, there is the hidden danger of the damage of subsurface geology change and construction reconstruction; Need a large amount of to carry out cold and hot exchange with underground in earth source heat pump unit running process, when underground cold exchange unbalance factor comparatively large and need the long period time, the cold and hot exchange in source, ground can be produced and lost efficacy and the serious consequence of destruction underground ecological environment; Simultaneously because underground buried tube floor space is large, therefore earth source heat pump is not suitable for promoting in the large area of site coverage and the larger construction project of air conditioner load, and compares and be suitable for the little area of site coverage and the less 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 utilizes inverse Carnot's principle, the refrigerant closed cycle flow system be made up of devices such as compressor, condenser, expansion valve, evaporimeters; Under the driving of electric energy, the gas of refrigerant boil down to HTHP in compressor, discharge from compressor high-pressure exhaust, enter the liquid that condenser heat rejection is condensed into middle temperature high pressure, the liquid being 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.Constantly flowed by refrigerant, through the operation of Fan and pump, the air that circulates and water and condenser and evaporimeter is made to carry out septate heat transfer, by net for air-source heat pump units, cold and hot exchange is carried out to air, namely by the high-grade electric energy of input, by the cold and hot energy of air middle-low grade, high-grade cold and hot energy is promoted to, cold and hotly to be utilized high-grade by fan coil and hot water circulating pump again, reach the requirement of annual hot water, air conditioner refrigerating and heating trilogy supply.
Net for air-source heat pump units is current lower-cost one, but because finned heat exchanger spacing of fin is overstocked during winter heating, slight frosting heat exchanger is caused to get clogged, affect air circulation 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 heating simultaneously, thus 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
Summer reaches the requirement of refrigeration and hot water supply 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, winter reaches heating and hot water supply by gas-fired water heating boiler or oil burning boiler or coal-burning boiler, reaches the requirement of annual hot water, air conditioner refrigerating and heating trilogy supply.
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 are complicated, maintenance workload is large and maintenance technique requires high, has belonged to eliminating and not proposed recommendations unit for grassroot project.
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 the shortcoming that source source pump is traditionally not suitable for promoting in the large area of site coverage and the larger project of air conditioner load, solve conventional air source source pump winter heating air-source heat exchanger needs frequent defrosting and needs auxiliary the heating of electricity and causes source to be imitated than low problem simultaneously; And 65 DEG C of health hot waters are provided, efficiently solve spring and autumn transition season refrigeration with hot water combined running time, refrigeration is not enough causes the problem that hot water heating temperature is inadequate, there is hot water directly by tap water pressure output, air-source and the dual hot water function of solar energy, to solve the shortcoming in 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, 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, 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, hot-water heater and solar heat water jacket is provided with in described boiler, 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 air-source heat exchanger and check valve group II, 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 blower fan is provided with 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 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 organizing coil pipe more, is conducive to reducing the flow resistance of refrigerant by hot-water heater many groups coil pipe in parallel, thus reduces driven compressor power and running current, improves the Energy Efficiency Ratio of compressor.
In the present invention, described solar heat water jacket is spiral cylinder, and spiral cylinder adds septate heat transfer area, guides solar water along helical flow, improves heat exchange efficiency; Solar heat water jacket and boiler inner cylinder seal welding, external solar water is septate heat transfer with the hot water in boiler and can not mixes, external solar water totally can not pollute the hot water of boiler, external solar water can do medium with anti-icing fluid, solves the problem that external solar water heating system is antifreeze simply.
In the present invention, 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 ensure refrigeration or heat-production functions, i.e. cross valve commutation or do not commutate, the refrigerant of turnover air-source heat exchanger heat-exchanging tube group is all upper entering and lower leaving and interiorly enters to go out; Its effect 1 ensure lubricating oil gravity oil return in refrigerant and oil return 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 relatively more even, before ensureing defrost, air-source heat exchanger can not produce local stoppages phenomenon.
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 enclosure top, described air intake blower fan is arranged on cabinet side bottom, the more uniform requirement of air quantity of fins set on air-source heat exchanger can be reached through, improve the heat exchange efficiency of air-source heat exchanger; Compared with using a large blower fan with traditional approach, cost increases few, but performance improves and running noises reduces larger.
In the present invention, 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 with fluid reservoir left entry and hot water electromagnetic valve and is connected, the right interface of check valve group II and heating power expansion valve I export and balance throttle pipe and be connected, check valve group II lower interface is connected with air-condition heat exchanger lower interface, structurally ensure refrigeration or heat, namely cross valve commutates or does not commutate, the direction of turnover storage Huaihe River tank refrigerant flowing is all in the same way, meets turnover filter, direction that heating power expansion valve I, heating power expansion valve II and fluid reservoir refrigerant flow 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 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, compared with being generally 2 ~ 3mm with the spacing of conventional air source plate formula finned heat exchanger fin, during unit winter heating, fin frosting thickness reaches 1mm just needs defrosting; Fin frosting thickness reaches 1mm, also affects not quite, can not block the flowing of air, namely do not affect the heat exchange of fin and air to air circulation between fin; Fin frosting windward side frosting is more serious than lee face, namely 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 the gap of air circulation after heat exchange frosting substantially even, avoids local frosting serious and block air flowing; Slight frosting can improve heat exchanger low temperature heat absorption capacity, and slight frosting can be considered that evaporator fin increases endotherm area; The frosting that fin has produced, also can absorb heat and partial sublimation from the air of flowing, the speed causing frosting thickness to increase is slower, even if environment temperature is in the scope of 0 ~-5 DEG C that frosting is the most serious, the time that frosting reaches 1mm needs more than 8 hours, and namely 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 ensure heating effect, therefore the Energy Efficiency Ratio of its winter heating is higher.Temperature less than-5 DEG C is because of water vapor in air minimizing, fin surface frosting is tending towards reducing on the contrary, the i.e. plate fin heat exchanger that strengthens of, spacing different by air-source heat exchanger two groups of fins set spacing and heat exchange areas, realize frosting evenly, reduce frosting degree, extend time between twice defrosting, reduce defrosting number of times, exempt frosting and cause the blocking in air channel between 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, not the dividing of outside fin and leeward inner side fin windward, 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 uses, fin frosting thickness just needs defrosting when reaching 0.5mm, within general 30 ~ 45 minutes, just needs defrosting once, can not heat exchange to avoid heat exchanger frosting to block; When heat exchanger defrosting runs, not only need to consume electric energy, heat pump also needs to stop heating and affects the effect of heating; Because heat exchanger defrosting is relatively more frequent, unit needs the auxiliary effect heating 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 four triangular stud spaces, opens four, cabinet top side plate, directly can 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 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 electromagnetic valve inlet exports with economizer bottom right respectively and heating power expansion valve I entrance is connected, and described balanced electromagnetic valve outlet port is connected with balance throttle pipe; The throttling action of balance throttle pipe: the impact produced when preventing high-low pressure refrigerant from ganging up is excessive; protection part and pipeline not damaged; after balanced solenoid valve energising is opened; refrigerant is by balance throttle pipe and balanced solenoid valve; walk around heating power expansion valve I high-low pressure to be 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; conventional air source heat pump compressor is not had not shut down; the defrosting mode of direct reverse conversion cross valve; efficiently solve the impact produced when high-low pressure refrigerant is ganged up excessive; and it is uneven to cause refrigeration oil to flow, in the compressor short time, oil-feed is too much, makes compressor produce the problem of liquid hammer mechanical wounding and service life reduction; maintain the advantage of conventional counter conversion cross valve defrosting, avoid the shortcoming of conventional counter conversion cross valve defrosting.
In the present invention, by energy storage canister, balance the reverse effect of throttle pipe, balanced solenoid valve and 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 fin surface rapid frost melting, fin frosting defrosting from inside, frosting only needs partial melting, can automatically drop under gravity, reach the requirement with a small amount of heat rapid frost melting, reduce defrosting to the impact of air-conditioning heating, improve the object 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 side is a small amount of warm low pressure refrigerant liquid with a large amount of by economizer opposite side in the refrigerant liquid of warm low pressure carry out heat exchange, make the refrigerant liquid of warm low pressure in a large number excessively cold, get back to compressor puff prot a small amount of in warm low pressure cold media gas in, the load of automatic adjustment compressor, make cooling compressor, stop high pressure too high, effectively improve ability to work and Energy Efficiency Ratio that compressor adapts to high and low temperature environment temperature, enable source pump provide 65 DEG C of health hot waters, the lower 20 DEG C of heating of zero in winter heat without the need to electricity is auxiliary.
In the present invention, in described coolant circulating system, in boiler, hot-water heater is connected for parallel way with the refrigerant pipeline of air-condition heat exchanger, and its refrigerant flow distance shortens and resistance reduces, and compressor power consumption is reduced and 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, by the operation of 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 water heating in boiler by partition, is realized 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 to pressurize, and by the operation of hot water backwater's pump, heats in the water of end hot-water heating system pipeline input boiler, reaches end hot-water heating system water and open the requirement that tap is water with pressure and hot water; Final hot water or cold water are delivered in tail end air conditioner fan coil, or are delivered to by hot water in end hot-water heating system pipeline, and unwanted heat or cold are delivered to outdoor, reach the requirement of air conditioner refrigerating, air-conditioning heating, hot-water supply trilogy supply.
In the present invention, heat pump unit is provided with controller, according to operation and the stopping of working condition requirement automatic control compressor, water pump of air conditioner, hot water backwater's pump, solar heat water pump, blower fan, 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, discharge from the high-pressure exhaust of compressor, the gas of HTHP is at air-source heat exchanger, or air-condition heat exchanger, or in the hot-water heater of boiler, exothermic condensation is 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, air flows through from the fin air-source heat exchanger heat-exchanging tube group, enters the cold media gas of HTHP in set of heat exchange tubes during refrigeration, and its heat first passes to fin, pass to the air of fin surface flowing again, refrigerant exothermic condensation is flow out after the liquid of middle temperature high pressure, enter the refrigerant liquid of warm low pressure in set of heat exchange tubes when heating, absorbed heat from the air of flowing by fin, flow out after being evaporated to the gas of low-temp low-pressure, by the operation of water pump of air conditioner, cooling water or chilled water are at air-condition heat exchanger internal circulation flow, during refrigeration, air-condition heat exchanger enters the refrigerant liquid of middle temperature low pressure, from chilled water, absorbing heat by the partition of refrigerant and water makes cold water temperature reduce, refrigerant therefrom warm low pressure expansion of liquids heat absorption, flow out after being evaporated to the gas of low-temp low-pressure, when heating, air-condition heat exchanger enters the cold media gas of HTHP, and its heat passes to cooling water by the partition of refrigerant and water makes water temperature raise, and refrigerant exothermic condensation is flow out after the liquid of middle temperature high pressure, circulated in hot-water heater by the cold media gas of HTHP, its heat directly passes to the water in boiler by the partition of refrigerant and water, the water temperature of boiler is raised, and refrigerant condensation heat release is flow out after the liquid of middle temperature high pressure, to realize respective function.
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 run by following five operating modes as required:
One, independent air conditioner refrigerating operating mode
Solar heat water pump and hot water backwater's pump do not run, hot water electromagnetic valve and balanced solenoid valve normally closed, 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 DEG C)
Through the pipe connection with the operation of the compressor, refrigerant compressor high pressure from the vent discharge - through air conditioning electromagnetic valve - entrance into four-way valve under high pressure to outflow from four-way valve left interface, enter the one-way valve group under Ⅰ interface - from one-way valve group Ⅰ left interface - points into the air source heat exchanger tube on the interface - by air source heat exchanger tube set - from air source heat exchanger under the liquid collecting pipe interface to enter the one-way valve group Ⅰ right interface, interface outflow from the one-way valve group Ⅰ - into a one-way valve group Ⅱ interface - from one-way valve group Ⅱ left interface to into the storage tank is the left entrance, right out from the storage tank and through the filter is divided into two after the road: a large number of refrigerant enters the economizer at the upper entry - from the economizer lower right out - through thermal expansion valve Ⅰ - > enter the one-way valve group Ⅱ interface - > right out from under the one-way valve group Ⅱ interface to enter the interface under air conditioning heat exchanger, and interface from the air conditioning heat exchanger and flows into four-way valve right interface to low voltage out from the four-way valve, right into the gas-liquid separator entrance - from gas-liquid separator left out - back to the compressor low pressure suction mouth - through the compressor compression - and from the compressor high pressure vent discharge;A small amount of refrigerant through thermal expansion valve Ⅱ - entering the economizer upper left entrance to flow from the left lower economizer export, into the compressor air nozzle - through the compressor compression - and from the compressor high pressure vent discharge, so constantly circulating refrigerant;Through the operation of the air conditioning pump and fan, high temperature and high pressure refrigerant gas flow on the surface of heat to the air source heat exchanger in the air, for medium temperature high pressure liquid refrigerant condensing heat release;A large number of medium temperature low pressure liquid refrigerant cycle of frozen water absorbs heat from the air conditioning heat exchanger, the chilled water cooling into cold water, cold media heat evaporating for low temperature low pressure gas;End of the cold water to the indoor air conditioning fan coil units, the realization of indoor air conditioning refrigeration.
2, chilled water backwater water temperature is lower than design temperature (10 DEG C)
Compressors and Fans power-off is out of service, and water pump of air conditioner continues to run circulating of maintenance chilled water.
3, realize air conditioner refrigerating according to above-mentioned circulation and automatically regulate operation.
Two, independent air-conditioning heating operating mode
1, cooling water backwater water temperature lower than design temperature (40 DEG C) and ambient air temperature higher than set temperature (3 DEG C)
Solar heat water pump and hot water backwater's pump do not run, hot water electromagnetic valve and balanced solenoid valve normally closed, air conditioner electric magnet valve is often opened, and cross valve energising is for heating mode.
Through the pipe connection with the operation of the compressor, refrigerant from discharge - by air conditioning compressor high pressure vent entrance into a four-way valve and solenoid valve and high pressure, from the four-way valve flow interface to enter the air conditioning heat exchanger on the interface, right out from under the air conditioning heat exchanger interface to enter the one-way valve group under Ⅱ interface, from one-way valve group Ⅱ left interface to into the storage tank is the left entrance, right out from the storage tank - through the filter is divided into two after the road: a large number of refrigerant enters the economizer at the upper entry - from the economizer lower right out - through thermal expansion valve Ⅰ - right into the one-way valve group Ⅱ interface - from the check valve flow interface - > enter the one-way valve on Ⅱ group Ⅰ on the interface - Ⅰ interface right outflow from one-way valve group - points into the air source heat exchanger tube on the interface - by air source heat exchanger tube set - from air source heat exchanger under the liquid collecting pipe interface to enter the one-way valve group Ⅰ interface - > right out from under the one-way valve group Ⅰ interface to enter the four-way valve left interface, low export outflow from the four-way valve to the right entrance into the gas liquid separator, out from the gas-liquid separator left - back to the compressor low pressure suction mouth - through the compressor compression - and from the compressor high pressure vent discharge;And a small amount of refrigerant through thermal expansion valve Ⅱ enters the economizer upper left entrance to flow from the left lower economizer export, into the compressor air nozzle - through the compressor compression - and from the compressor high pressure vent discharge, so constantly circulating refrigerant;Through air conditioning pump and fan operation, heat to the air conditioning heat exchanger in high temperature and high pressure refrigerant gas, condensing heat release for medium temperature high pressure liquid, cooling water heating for hot water;Medium temperature high pressure refrigerant liquid through thermal expansion valve Ⅰ throttling relief, from the air flow on the surface of the air source heat exchanger, heat evaporation for low temperature low pressure gas, hot water to the end in indoor air conditioning fan coil units, heating to realize indoor air conditioning.
2, cooling water backwater water temperature lower than design temperature (40 DEG C) and ambient air temperature lower than set temperature (2 DEG C)
Air-source heat exchanger surface starts frosting, and when the frosting of air-source heat exchanger surface does not exceed setting thickness, 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, shut down after blower fan time delay, water pump of air conditioner continues to run circulating of maintenance cooling water, balanced solenoid valve energising is opened, refrigerant is walked around after heating power expansion valve I high-low pressure is directly communicated with Fast-Balance, balanced solenoid valve power-off is closed, cross valve power-off is refrigeration mode, compressor start runs, by heat the circulating by refrigerant of hot water in energy storage canister, be transported to when air-source heat exchanger surface, make air-source heat exchanger surface frosting fast melt; After air-source heat exchanger surface frost melts; compressor shutdown; water pump of air conditioner continues to run circulating of maintenance 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 restarts after compressor time delay, re-starts air-conditioning heating operation.
3, cooling water backwater water temperature is higher than design temperature (42 DEG C)
Compressor, blower fan power-off are out of service, and cross valve keeps power-off to be heating mode, and water pump of air conditioner continues to run and maintains circulating of cooling water.
4, realize air-conditioning heating according to above-mentioned circulation 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 DEG C ~ 65 DEG C), external solar water heater lower than design temperature (55 DEG C ~ 70 DEG C) and ambient air temperature higher than set temperature (3 DEG C)
Solar heat water pump and water pump of air conditioner do not run, and air-conditioning solenoid valves 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 after filter point of two-way: a large amount of refrigerant enters 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 → flow out → enter interface in check valve group I → flow out → enter interface air-source heat exchanger separating tube → by air-source heat exchanger heat-exchanging tube group → flow out → enter the right interface of check valve group I → flow out → enter the left interface of cross valve → flow 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 from low tension outlet cross valve from check valve group I lower interface from air-source heat exchanger collector tube lower interface from the left interface of check valve group I from interface check valve group II, a small amount of refrigerant is by heating power expansion valve II → enter economizer upper left entrance → flow out → enter into compressor puff prot → by compressor compresses → discharge from compressor high-pressure exhaust again from the outlet of economizer lower-left, and refrigerant so constantly circulates and realizes independent hot-water supply.
Circulated in hot-water heater by the cold media gas of HTHP, its heat directly passes to the water in boiler by hot-water heater partition, and the water temperature of boiler is raised, and refrigerant condensation heat release is 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 from the air that air-source heat exchanger surface flows, and refrigerant swelling heat absorption is evaporated to the gas of low-temp low-pressure; The water temperature of hot water end system pipeline lower than design temperature (40 DEG C), hot water backwater's pump operation; The water temperature of hot water end system pipeline is higher than design temperature (45 DEG C), 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 DEG C ~ 65 DEG C), external solar water heater lower than design temperature (55 DEG C ~ 70 DEG C) and ambient air temperature lower than set temperature (2 DEG C)
Air-source heat exchanger surface starts frosting, when the frosting of air-source heat exchanger surface does not exceed setting thickness, in energy storage canister, water temperature is lower than design temperature (40 DEG C), water pump of air conditioner first runs, air conditioner electric magnet valve delay cut-off is opened, the refrigerant of discharging from compressor high-pressure exhaust separates part → by high pressure entry air conditioner electric magnet valve → enter cross valve, flow out → enter interface air-condition heat exchanger → flow out → enter check valve group II lower interface → flow out from the left interface of check valve group II → converge with from hot water electromagnetic valve's refrigerant out from air-condition heat exchanger lower interface from the right interface of cross valve, when water temperature in energy storage canister reaches design temperature (42 DEG C), air conditioner electric magnet valve is first energized closedown, water pump of air conditioner time delay is out of service, air conditioner electric magnet valve is circulation power-off and energising so, water pump of air conditioner circular flow like this and stopping.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, shut down after blower fan time delay, balanced solenoid valve energising is opened, refrigerant is walked around heating power expansion valve I high-low pressure and to be directly communicated with and after Fast-Balance, balanced solenoid valve power-off is closed, cross valve power-off is refrigeration mode, water pump of air conditioner first runs, compressor delayed startup runs, by heat the circulating by refrigerant of energy storage canister and air conditioning terminal hot water, be transported to when air-source heat exchanger surface, make air-source heat exchanger surface frosting fast melt; After air-source heat exchanger surface frost melts; compressor is first shut down; water pump of air conditioner time delay 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 restarts after compressor time delay, re-starts air-conditioning heating operation.
3, in external solar water heater the water temperature of hot water higher than design temperature (55 DEG C ~ 70 DEG C)
By the operation of solar heat water pump, by the hot water circuit of external solar water heater input solar heat water jacket, by the partition of solar water and water, the water of boiler is heated.
4, boiler reaches design temperature (50 DEG C ~ 65 DEG C)
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 operation automatically of hot water end system pipeline press by hot water backwater's pump.
5, the object of hot-water supply is reached according to above-mentioned circulation.
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
Air-conditioning solenoid valves 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 run.
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 after filter point of two-way: a large amount of refrigerant enters 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 → flow out → enter air-condition heat exchanger lower interface → flow out → enter the right interface of cross valve → 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 from low tension outlet cross valve from interface air-condition heat exchanger from check valve group II lower interface; A small amount of refrigerant is by heating power expansion valve II → enter economizer upper left entrance → flow out → enter into compressor puff prot → by compressor compresses → discharge from compressor high-pressure exhaust again from the outlet of economizer lower-left, and refrigerant so constantly circulates; Circulated in hot-water heater by the cold media gas of HTHP, its heat directly passes to the water in boiler by hot-water heater partition, and the water temperature of boiler is raised, and refrigerant condensation heat release is flow out after the liquid of middle temperature high pressure; By water pump of air conditioner, the refrigerant liquid of middle temperature low pressure absorbs heat from the circulated refrigerated water in air-condition heat exchanger, makes chilled water lower the temperature into cold water, and 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 run by independent hot-water supply.
3, boiler water temperature and chilled water backwater water temperature are simultaneously higher than design temperature, and source pump is run by independent air conditioner refrigerating.
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 water pump of air conditioner continues to run the circulation maintaining chilled water.
5, circulation reaches the object of air conditioner refrigerating and hot-water supply alliance according to this.
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 runs 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 pipe connection with the operation of the compressor, refrigerant from the compressor after high pressure vent discharge in two way: to all the way through the hot water heater in the hot water tank, by hot water electromagnetic valve;The other all the way through the air conditioning electromagnetic valve to the high pressure entrance into the four-way valve, outflow from four-way valve right interface to enter the interface on the air conditioning heat exchanger, out from under the air conditioning heat exchanger interface to enter the one-way valve group under Ⅱ interface, from one-way valve group Ⅱ left interface;Two roads meet refrigerant in the storage tank inlet to into the storage tank is the left entrance, right out from the storage tank and through the filter is divided into two after the road: a large number of refrigerant entering the economizer upper entry - from the economizer lower right out - through thermal expansion valve Ⅰ - right into the one-way valve group Ⅱ interface - from the check valve flow interface - > enter the one-way valve on Ⅱ group Ⅰ on the interface - from one-way valve group Ⅰ left interface - points into the air source heat exchanger tube on the interface - by air source heat exchanger tube set - from air source heat exchanger under the liquid collecting pipe interface to enter the one-way valve group Ⅰ interface - > right out from under the one-way valve group Ⅰ interface to enter the four-way valve left interface, low export outflow from the four-way valve to the right entrance into the gas liquid separator, out from the gas-liquid separator left - back to the compressor low pressure suction mouth - through the compressor compression - and from the compressor high pressure vent discharge;And a small amount of refrigerant through thermal expansion valve Ⅱ enters the economizer upper left entrance to flow from the left lower economizer export, into the compressor air nozzle - through the compressor compression - and from the compressor high pressure vent discharge, so constantly circulating refrigerant;Through parts of high temperature and high pressure refrigerant gas circulating in the hot water heater, the heat partition by hot water heater directly to the water in the hot water tank, the hot water tank water temperature rise, refrigerant condensing heat release for the temperature and high pressure liquid outflow;Through air conditioning pump and fan operation, part of the heat to the air conditioning heat exchanger in high temperature and high pressure refrigerant gas, condensing heat release for medium temperature high pressure liquid, the cooling water for the hot water heating.The refrigerant liquid of middle temperature high pressure is by the decompression of heating power expansion valve I restriction, and from the air that air-source heat exchanger surface flows, 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.
As the frosting of air-source heat exchanger surface reaches setting thickness when source pump is run, 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 run by independent hot-water supply.
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.
4, when 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 to run the circulation maintaining cooling water.
5, circulation reaches the object of air-conditioning heating and hot-water supply alliance according to this.
Above-mentioned five operating modes, generator set controller are selected arbitrarily run according to needs in season by user.
beneficial effect
1, environmental protection and energy saving of the present invention and average Energy Efficiency Ratio high: unit uses and only need consume electric energy, does not have the pollution of combustion gas and coal-fired fossil energy; The plate fin heat exchanger that unit uses 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: air-source heat exchanger is air-cooled, fin easy to clean, the anhydrous corrosion harmfulness of fin, and the impact that compressor bears is little, effectively improves compressor and air-source heat exchanger service life;
3, when in the present invention, transition season refrigeration is with hot water combined running, deficiency of not freezing causes the problem that hot water heating temperature is inadequate, achieves the intelligent function that hot water heating is temperature prioritised;
4, the present invention can provide the health hot water of 65 DEG C, overcomes the shortcoming that traditional trilogy supply source pump only provides 55 DEG C of hot water;
5, cost performance of the present invention is high: although the cost of air-source heat exchanger is than traditional height, and whole unit cost increases little, and the combination property of unit improves larger;
6, the present invention conforms extensively: can use within the scope of the height temperature of-20 DEG C ~ 46 DEG C.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 be in Fig. 1 A to sectional view.
Fig. 3 is the present invention's middle-size and small-size air-source central air-conditioning two combined supply heat pump unit schematic diagram or medium-scale 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-scale 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 present invention's medium-and-large-sized air-source heat source tower heat pump complete set of equipments schematic diagram.
Fig. 8 is heat source tower schematic diagram in the present invention.
Detailed description of the invention
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See 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, interface on 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 diagram, but also be medium-scale 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 is medium-scale air source module source pump schematic diagram: two or three trilogy supply source pump are combined as 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 heat source tower schematic diagram and Fig. 8 is large-scale air heat-source tower heat pump complete set of equipments schematic diagram, together with the large-scale air source heat exchanger 25 be arranged in heat source tower 24 is located at the inconvenience of large-scale source pump 28, large-scale air-source heat exchanger 25 manufactures and designs heat source tower 24 equipment for being suitable for being placed on roof, large-scale source pump 28 otherwise designed is arranged on machine room, centre is connected with Intermediate Heat Exchanger in unit 26 with pipeline, in pipeline, heat transferring medium is anti-icing fluid, anti-icing fluid is driven by heat source tower water pump 27 and circulates heat exchange, adapt to central air-conditioning and the hot water supply in the place such as Large-scale Hotel and unit.
In the present embodiment, controller, 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 stopping, starting and cuts out the conversion of air conditioner electric magnet valve 6, hot water electromagnetic valve 5, balanced solenoid valve 19 and cross valve 7.
See Fig. 1, Fig. 2, air-source central air-conditioning hot water tri-generation source pump is run by following five operating modes the whole year as required:
One, independent air conditioner refrigerating operating mode
Solar heat water pump 2 and hot water backwater's pump 3 do not run, 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 power is refrigeration mode.
1, chilled water backwater water temperature is higher than design temperature (12 DEG C)
Through the pipe connection with the operation of the compressor 1, 1-2 refrigerant compressor high pressure from vent discharge - through air conditioning electromagnetic valve 6 - the high pressure entrance into the four-way valve 7-1 to 7-2 outflow from four-way valve left interface, enter the one-way valve group Ⅰ interface under 8-1 - > Ⅰ left interface 8-2 outflow from one-way valve group to enter the air source heat exchanger tube 12-3 on the interface - through the heat exchange tube group 12-2 - from intercepting air source heat exchanger tube under 12-1 - > interface and flows into one-way valve group Ⅰ right interface 8-3 - > interface 8-4 outflow from the one-way valve group Ⅰ - > enter the one-way valve group Ⅱ interface on 11-1 - from one-way valve group Ⅱ left interface - 11-2 and flows into storage tank 21 left entrance - from the storage tank is 21 right out - through the filter after 14 points two road: a large number of refrigerant entering the economizer 22 upper entry to 22 lower right out from the economizer, through thermal expansion valve Ⅰ 17 - > enter the one-way valve group Ⅱ right interface 11-3 - > Ⅱ interface 11-4 outflow from one-way valve group to enter the air conditioning heat exchanger under 13 interface, interface outflow from the air conditioning heat exchanger 13 - right into the four-way valve interface 7-3 - low export 7-4 outflow from the four-way valve - 23 right into the gas-liquid separator entrance to 23 left out from the gas-liquid separator, back to the compressor low pressure suction mouth 1-2-1 compression by compressor - from high pressure compressor outlet 1-2 discharge;A small amount of refrigerant through thermal expansion valve Ⅱ 20 to 22 upper left entrance into the economizer, from 22 lower left out - into the compressor economizer air nozzle 1-3-1 compression by compressor - from compressor high pressure discharge vent 1-2, so constantly circulating refrigerant.
By the operation of water pump of air conditioner 15 with blower fan 10, the heat in HTHP cold media gas passes to the air that air-source heat exchanger 12 flows on the surface, and refrigerant exothermic condensation is the liquid of middle temperature high pressure; In a large amount of, the refrigerant liquid of warm low pressure absorbs heat from the circulated refrigerated water in air-condition heat exchanger 13, makes chilled water lower the temperature into cold water, and 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 DEG C)
Compressor 1, blower fan 10 power-off are out of service, and water pump of air conditioner 15 continues to run and maintains circulating of chilled water.
3, reach according to above-mentioned circulation the object that air conditioner refrigerating regulates operation automatically.
Two, independent air-conditioning heating operating mode
1, cooling water backwater water temperature lower than design temperature (40 DEG C) and ambient air temperature higher than set temperature (3 DEG C)
Solar heat water pump 2 and hot water backwater's pump 3 do not run, 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 is energized as heating mode.
Through the pipe connection with the operation of the compressor 1, 1-2 refrigerant compressor high pressure from vent discharge into a four-way valve - through air conditioning electromagnetic valve 6 - high pressure entrance, 7-1-7-3 from four-way valve right interface and flows into 13 air conditioning heat exchanger on the interface to outflow from air conditioning heat exchanger under 13 interface, enter the one-way valve group interface under Ⅱ 11-4-11-2 from one-way valve group Ⅱ left interface and outflow into the storage tank is 21 the left entrance - from the storage tank is 21 right out - through the filter after 14 points two road: a large number of refrigerant entering the economizer 22 upper entry to 22 lower right out from the economizer, through thermal expansion valve Ⅰ 17 - > enter the one-way valve group Ⅱ right interface 11-3 - > interface from the one-way valve group Ⅱ out 11-1-8-4 - into a one-way valve group Ⅰ interface Ⅰ right interface 8-2 outflow from one-way valve group to enter the air source heat exchanger tube 12-3 on the interface - through the heat exchange tube group 12-2 - from intercepting air source heat exchanger tube under 12-1 - > interface and flows into one-way valve group Ⅰ right interface 8-3-8-1 out from under the one-way valve group Ⅰ interface to enter the four-way valve left interface 7-2, low export 7-4 outflow from the four-way valve - 23 right into the gas-liquid separator entrance to 23 left out from the gas-liquid separator, back to the compressor low pressure suction mouth 1-2-1 compression by compressor - from high pressure compressor outlet 1-2 discharge;A small amount of refrigerant through thermal expansion valve Ⅱ 20 to 22 upper left entrance into the economizer, from 22 lower left out - into the economizer compressor air nozzle 1-3-1 compression by compressor - from compressor high pressure discharge vent 1-2, so constantly circulating refrigerant.
By water pump of air conditioner 15 and fan operation, the heat in HTHP cold media gas passes to air-condition heat exchanger 13, and exothermic condensation is 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 decompression of heating power expansion valve I 17 restriction, from the air that air-source heat exchanger 12 flows on the surface, 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 DEG C) and ambient air temperature lower than set temperature (2 DEG C)
Air-source heat exchanger 12 surface starts frosting, and when the surperficial frosting of air-source heat exchanger 12 does not exceed setting thickness, 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; shut down after blower fan 10 time delay; water pump of air conditioner 15 continues to run circulating of maintenance cooling water; balanced solenoid valve 19 energising is opened; refrigerant is walked around after heating power expansion valve I 17 high-low pressure is directly communicated with Fast-Balance; balanced solenoid valve 19 power-off is closed; cross valve 7 power-off is refrigeration mode; compressor 1 startup optimization; by heat the circulating by refrigerant of hot water in energy storage canister 16, be transported to when air-source heat exchanger 12 surface, make the surperficial frosting fast melt of air-source heat exchanger 12.
After the surperficial frost melts of air-source heat exchanger 12; compressor 1 is shut down; water pump of air conditioner 15 continues to run circulating of maintenance cooling water; balanced solenoid valve 19 energising is opened, and after high-low pressure Fast-Balance, balanced solenoid valve 19 power-off is closed; cross valve 17 is energized as heating mode; blower fan 10 first starts, and restarts, re-start air-conditioning heating operation after compressor 1 time delay.
3, cooling water backwater water temperature is higher than design temperature (42 DEG C)
Compressor 1, blower fan 10 power-off are out of service, and cross valve 7 keeps power-off to be heating mode, and water pump of air conditioner 15 continues to run and maintains circulating of cooling water.
4, reach according to above-mentioned circulation the object that air-conditioning heating regulates operation automatically.
Three, independent hot-water supply operating mode
1, boiler 4 water temperature lower than the water temperature of hot water in design temperature (50 DEG C ~ 65 DEG C), external solar water heater lower than design temperature (55 DEG C ~ 70 DEG C) and ambient air temperature higher than set temperature (3 DEG C)
Solar heat water pump 2 and water pump of air conditioner 3 do not run, and air conditioner electric magnet valve 6 is energized and closes, and balanced solenoid valve 19 is normally closed, and cross valve 7 is energized as heating mode, and hot water electromagnetic valve 5 energising is opened.
Through the pipe connection with the operation of the compressor 1, 1-2 refrigerant compressor high pressure from vent discharge - by hot water heater 4-1-5 - by hot water solenoid into the storage tank is 21 the left entrance - from the storage tank is 21 right out - through the filter after 14 points two road: a large number of refrigerant entering the economizer 22 upper entry to 22 lower right out from the economizer, through thermal expansion valve Ⅰ 17 - > enter the one-way valve group Ⅱ right interface 11-3 - > interface from the one-way valve group Ⅱ out 11-1-8-4 - into a one-way valve group Ⅰ interface Ⅰ left interface 8-2 outflow from one-way valve group to enter the air source heat exchanger tube 12-3 on the interface - through the heat exchange tube group 12-2 - from intercepting air source heat exchanger tube under 12-1 - > interface and flows into one-way valve group Ⅰ right interface 8-3-8-1 out from under the one-way valve group Ⅰ interface to enter the four-way valve left interface 7-2, low export 7-4 outflow from the four-way valve and into the gas-liquid separator 21 the left entrance - out from 21 gas-liquid separator right - back to the compressor low pressure suction mouth 1-2-1 compression by compressor - from high pressure compressor outlet 1-2 discharge;A small amount of refrigerant through thermal expansion valve Ⅱ 20 to 22 upper left entrance into the economizer, from 22 lower left out - into the economizer compressor air nozzle 1-3-1 compression by compressor - from compressor high pressure discharge vent 1-2, so constantly circulating refrigerant.
Circulated in hot-water heater 4-1 by the cold media gas of HTHP, its heat directly passes to the water in boiler 4 by hot-water heater 4-1 partition, and boiler 4 water temperature is raised, and refrigerant condensation heat release is 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 from the air that air-source heat exchanger 12 flows on the 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 DEG C), and hot water backwater's pump 3 runs; The water temperature of hot water end system pipeline is higher than design temperature (45 DEG C), and hot water backwater's pump 3 is out of service.
2, boiler 4 water temperature lower than the water temperature of hot water in design temperature (50 DEG C ~ 65 DEG C), external solar water heater lower than design temperature (55 DEG C ~ 70 DEG C) and ambient air temperature lower than set temperature (2 DEG C)
Air-source heat exchanger 12 surface starts frosting, when the surperficial frosting of air-source heat exchanger 12 does not exceed setting thickness, when water temperature in energy storage canister 16 is lower than design temperature (40 DEG C), water pump of air conditioner 15 first runs, air conditioner electric magnet valve 6 delay cut-off is opened, the refrigerant of discharging from compressor high-pressure exhaust 1-2 separates part → by high pressure entry 7-1 air conditioner electric magnet valve 6 → enter cross valve, flow out → enter interface air-condition heat exchanger 13 → flow out → enter check valve group II lower interface 11-4 → flow out from the left interface 11-2 of check valve group II → converge with from hot water electromagnetic valve 5 refrigerant out from air-condition heat exchanger 13 lower interface from cross valve right interface 7-3, when water temperature in energy storage canister 16 reaches design temperature (42 DEG C), air conditioner electric magnet valve 6 is first energized closedown, water pump of air conditioner 15 time delay is out of service, air conditioner electric magnet valve 6 is circulation power-off and energising so, water pump of air conditioner 15 is circular flow and stopping so.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; shut down after blower fan 10 time delay; balanced solenoid valve 19 energising is opened; refrigerant is walked around heating power expansion valve I 17 high-low pressure and to be directly communicated with and after Fast-Balance; balanced solenoid valve 19 power-off is closed; cross valve 7 power-off is refrigeration mode; water pump of air conditioner 15 first runs; compressor 1 delayed startup runs; by heat the circulating by refrigerant of energy storage canister 16 and air conditioning terminal hot water, be transported to when air-source heat exchanger 12 surface, make the surperficial frosting fast melt of air-source heat exchanger 12.
After the surperficial frost melts of air-source heat exchanger 12; compressor 1 is first shut down; water pump of air conditioner 15 time delay is out of service; balanced solenoid valve 19 energising is opened, and after high-low pressure Fast-Balance, balanced solenoid valve 19 power-off is closed; cross valve 7 is energized as heating mode; blower fan 10 first starts, and restarts, re-start air-conditioning heating operation after compressor 1 time delay.
3, in external solar water heater the water temperature of hot water higher than design temperature (55 DEG C ~ 70 DEG C)
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), by the partition of solar water and water, the water of boiler 4 is heated.
4, boiler 4 reaches design temperature (50 DEG C ~ 65 DEG C)
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 operation automatically of hot water end system pipeline press by hot water backwater's pump 3.
5, the object of hot-water supply is reached according to above-mentioned circulation.
Four, air conditioner refrigerating+hot-water combined supplying operating mode
1, boiler 4 water temperature is 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
Air conditioner electric magnet valve 6 is energized and closes, and balanced solenoid valve 19 is normally closed, and cross valve 7 power-off is refrigeration mode, and hot water electromagnetic valve 5 energising is opened, and blower fan 10 does not run.
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 entry → from the right outlet of fluid reservoir 21 flow out → by after filter 14 point of two-way: a large amount of refrigerant enters economizer 22 upper right entrance → outlet outflow from economizer 22 bottom right → by heating power expansion valve I 17 → enter check valve group II right interface 11-3 → flow out → enter air-condition heat exchanger 13 lower interface → flow out → enter cross valve right interface 7-3 → flow out → enter gas-liquid separator 23 right entry → flow out → get back to compressor low pressure air suction mouth 1-2 → compressed by compressor 1 → discharged from compressor high-pressure exhaust 1-2 again from the left outlet of gas-liquid separator 23 from low tension outlet 7-4 cross valve from interface air-condition heat exchanger 13 from check valve group II lower interface 11-4, a small amount of refrigerant is by heating power expansion valve II 20 → enter economizer 22 upper left entrance → flow out → enter into compressor puff prot 1-3 → compressed by compressor 1 → discharged from compressor high-pressure exhaust 1-2 again from the outlet of economizer 22 lower-left, and refrigerant like this constantly circulates.
Circulated in hot-water heater 4-1 by the cold media gas of HTHP, its heat directly passes to the water in boiler 4 by hot-water heater 4-1 partition, and the water temperature of boiler is raised, and refrigerant condensation heat release is flow out after the liquid of middle temperature high pressure.
By water pump of air conditioner 15, the refrigerant liquid of middle temperature low pressure absorbs heat from the circulated refrigerated water in air-condition heat exchanger 13, makes chilled water lower the temperature into cold water, and 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 temperature and chilled water backwater water temperature are simultaneously lower than design temperature, and unit runs by independent hot-water supply.
3, boiler 4 water temperature and chilled water backwater water temperature are simultaneously higher than design temperature, and unit runs by independent air conditioner refrigerating.
4, boiler 4 water temperature is 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 to run the circulation maintaining chilled water.
5, circulation reaches the object of air conditioner refrigerating and hot-water supply alliance according to this.
Five, air-conditioning heating+hot-water combined supplying operating mode
1, boiler 4 water temperature and cooling water backwater water temperature are simultaneously lower than design temperature, and unit runs heating and hot-water supply simultaneously
Balanced solenoid valve 19 is normally closed, and hot water electromagnetic valve 5 energising is opened, and air conditioner electric magnet valve 6 power-off is often opened, and cross valve 7 is energized as heating mode.
Through the pipe connection with the operation of the compressor 1, refrigerant from the high pressure compressor outlet in two way: after 1-2 - all the way through the hot water heater 4-1-5 by hot water solenoid;The other all the way through the air conditioning electromagnetic valve 6 - into the high pressure entrance 7-1, four-way valve from four-way valve right interface - > 7-3 and flows into 13 on the interface - from air conditioning air conditioning heat exchanger heat exchanger under 13 - > interface and flows into one-way valve group interface under Ⅱ 11-4-11 - from one-way valve group Ⅱ left interface 2 outflow;Two roads meet refrigerant in the storage tank is 21 entrance to entrance into storage tank is 21 left, from the storage tank after 21 right out - through the filter 14 points two road: a large number of refrigerant entering the economizer 22 upper entry to 22 lower right out from the economizer, through the thermal expansion valve Ⅰ 17 - > enter the one-way valve group Ⅱ right interface 11-3 - > interface from the one-way valve group Ⅱ out 11-1-8-4 - into a one-way valve group Ⅰ interface Ⅰ left interface 8-2 outflow from one-way valve group to enter the air source heat exchanger tube 12-3 on the interface - through the heat exchange tube group 12-2 - from intercepting air source heat exchanger tube under 12-1 - > interface and flows into one-way valve group Ⅰ right interface 8-3-8-1 out from under the one-way valve group Ⅰ interface to enter the four-way valve left interface 7-2, low export 7-4 outflow from the four-way valve - 23 right into the gas-liquid separator entrance to 23 left out from the gas-liquid separator, back to the compressor low pressure suction mouth 1-2-1 compression by compressor - from high pressure compressor outlet 1-2 discharge;A small amount of refrigerant through thermal expansion valve Ⅱ 20 to 22 upper left entrance into the economizer, from 22 lower left out - into the economizer compressor air nozzle 1-3-1 compression by compressor - from compressor high pressure discharge vent 1-2, so constantly circulating refrigerant.
Circulated in hot-water heater 4-1 by the cold media gas of part HTHP, its heat directly passes to the water in boiler 4 by hot-water heater 4-1 partition, and the water temperature of boiler 4 is raised, and refrigerant condensation heat release is flow out after the liquid of middle temperature high pressure.
Run by water pump of air conditioner 15 and blower fan 10, the heat in part HTHP cold media gas passes to air-condition heat exchanger 13, and exothermic condensation is 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 decompression of heating power expansion valve I 17 restriction, from the air that air-source heat exchanger 12 flows on the surface, 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 temperature is lower than design temperature, and cooling water backwater water temperature is higher than design temperature, and source pump is run by independent hot-water supply.
3, boiler 4 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.
4, when boiler 4 water temperature 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 to run the circulation maintaining cooling water.
5, circulation reaches the object of air-conditioning heating and hot-water supply alliance according to this.
More than show and describe general 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; what describe in above-described embodiment and description 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.Application claims protection domain is defined by appending claims and equivalent thereof.

Claims (9)

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, 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, hot-water heater and solar heat water jacket is provided with in described boiler, 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 air-source heat exchanger and check valve group II, 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 blower fan is provided with 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 water pump of air conditioner, 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 fluid reservoir.
2. air-source central air-conditioning hot water tri-generation source pump according to claim 1, it 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, it 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 arranged in described cabinet comprises exhaust fan and air intake blower fan, and described exhaust fan is arranged on enclosure 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 with fluid reservoir left entry and hot water electromagnetic valve and is connected, and the right interface of check valve group II and heating power expansion valve I export and balance throttle pipe and be connected, 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, it is characterized in that, described cabinet top is provided with four air-source heat exchangers, and four air-source heat exchangers are arranged as " X " type structure.
9. air-source central air-conditioning hot water tri-generation source pump according to claim 1, it is characterized in that, described balanced electromagnetic valve inlet exports with economizer bottom right respectively and heating power expansion valve I entrance is connected, and described balanced electromagnetic valve outlet port is connected with balance throttle pipe.
CN201310288286.3A 2013-07-10 2013-07-10 Air-source central air-conditioning hot water triple-generation heat pump unit CN103423917B (en)

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CN104399586B (en) * 2014-11-20 2017-06-16 福建龙净环保股份有限公司 A kind of wet desulfurization system and its flue gas demisting heater, electrostatic precipitator
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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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