CN102914011A - Heat recovery air-conditioning machine set - Google Patents

Heat recovery air-conditioning machine set Download PDF

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Publication number
CN102914011A
CN102914011A CN201210463902XA CN201210463902A CN102914011A CN 102914011 A CN102914011 A CN 102914011A CN 201210463902X A CN201210463902X A CN 201210463902XA CN 201210463902 A CN201210463902 A CN 201210463902A CN 102914011 A CN102914011 A CN 102914011A
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CN
China
Prior art keywords
air
refrigeration
wind
box
exhaust
Prior art date
Application number
CN201210463902XA
Other languages
Chinese (zh)
Inventor
荣国华
Original Assignee
荣国华
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Publication date
Priority to CN201120141549 priority Critical
Priority to CN201120141549.4 priority
Application filed by 荣国华 filed Critical 荣国华
Priority to CN201210463902XA priority patent/CN102914011A/en
Publication of CN102914011A publication Critical patent/CN102914011A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • F24F12/003Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using a heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • Y02B30/563

Abstract

The invention discloses a heat recovery air-conditioning machine set which consists of an air supplying tank, an air exhaust tank, a refrigerating system and a power distribution control system, wherein the air supplying tank sends treated outdoor fresh air indoors; the air exhaust tank exhausts dirty indoor air outdoors; the evaporator of the refrigerating system is installed in the air supplying tank, is used for cooling air when in refrigeration, is converted into a condenser when in heating to heat air; and the condenser of the refrigerating system is installed in the air exhaust tank, absorbs cold amount in the indoor air and outdoor air when in refrigeration, is converted into the evaporator when in heating to absorb heat in the indoor air and outdoor air, thus cold and heat amounts in indoor air exhaust are recycled. The heat recovery air-conditioning machine set not only can treat reheated air, but also can independently control humiture, and the energy-saving effect can be realized.

Description

The heat recovery air conditioner unit

Technical field

The invention belongs to field of heating ventilation air conditioning, be specifically related to adopt refrigeration system to carry out the air-conditioning unit of energy recovery.

Background technology

At present, rotary-type, plate-fin is usually adopted in the recovery of air conditioning air exhaust heat energy, and heat exchange efficiency is low, has between air draft and the new wind to permeate and contact, new wind is polluted, unhygienic, in addition, this class air-conditioning unit does not possess Cooling and Heat Source, increase heat transmission equipment, provides Cooling and Heat Source by the outside.

Summary of the invention

The object of the present invention is to provide a kind of rational in infrastructure, hygiene, fully energy-conservation heat recovery air conditioner unit.

Solution of the present invention is: the heat recovery air conditioner unit is comprised of wind pushing box, air exhaust box, refrigeration system, power distribution control system.Wind pushing box is comprised of fresh wind port, return air inlet, filter, pressure fan, evaporimeter, air outlet, additional function section.Air exhaust box is comprised of air inlet, fresh wind port, filter, condenser, exhaust blower, exhaust outlet, additional function section.Refrigeration system is comprised of compressor, condenser, expansion throttling device, evaporimeter, servicing unit, and refrigeration system is heat pump, or single cooling system.Power distribution control system is comprised of controller switching equipment and automatic control equipment.

When equipment moved, outdoor new wind and return air were by in the pressure fan suction draft case, and through cooling (summer) or the heating (winter) of refrigeration system evaporator, air is processed to the parameter of setting, delivers to each air conditioning area by supply air system.Indoor exhaust wind and outdoor new wind are sucked air exhaust box by exhaust blower, and is outdoor through heating (summer) or the rear discharge of cooling (winter) of refrigeration system condenser.

When refrigeration system is worked summer, because indoor air temperature is lower than outdoor, utilize the condenser of refrigeration system in indoor exhaust wind and the outdoor new wind cooling air exhaust box, the cold device that is condensed absorbs.In wind pushing box, deliver to air-conditioned room after the cooling of the evaporator cools of outdoor new wind and the cooled system of indoor return air.Like this, by the kind of refrigeration cycle of refrigeration system, recycled the cold in the indoor exhaust wind.

When refrigeration system was worked winter, the condenser of refrigeration system had converted evaporimeter in the air exhaust box, because of indoor air temperature than outdoor height, utilize the evaporimeter of refrigeration system in indoor exhaust wind and the outdoor new wind heating air exhaust box, heat is absorbed by evaporimeter.In wind pushing box, the evaporimeter of refrigeration system has converted condenser to, and outdoor new wind and indoor return air are condensed and deliver to air-conditioned room behind the device heat temperature raising.Like this, by the circulation that heats of refrigeration system, recycled the heat in the indoor exhaust wind.

The controller switching equipment of power distribution control system provides power supply for refrigeration system, pressure fan, exhaust blower, electronic air quantity regulating tuyere, automatic control equipment, automatic control equipment is according to the variation of indoor-outdoor air parameter, automatically regulate the running status of refrigeration system, pressure fan, exhaust blower, electronic air quantity regulating tuyere, guarantee the efficient and stable operation of air-conditioning unit.

Description of drawings

Fig. 1 is Contiuum type heat recovering air conditioner set constructor figure

Fig. 2 is split type heat recovering air conditioner set constructor figure

Fig. 3 is split type Double-machine type heat pump heat recovering air conditioner set constructor figure

Fig. 4 is the heat pump heat recovering air conditioner set constructor figure of Contiuum type band double evaporators or reheater

Fig. 5 is split type heat pump heat recovering air conditioner set constructor figure with double evaporators or reheater

Fig. 6 is heat pump figure (1)

Fig. 7 is heat pump figure (2)

Fig. 8 is heat pump figure (3)

Fig. 9 is heat pump figure (4)

Figure 10 is heat pump figure (5)

Figure 11 is heat pump figure (6)

Figure 12 is heat pump figure (7)

Figure 13 is heat pump figure (8)

Figure 14 is heat pump figure (9)

Figure 15 is heat pump figure (10)

Figure 16 is air-cylinder type reservoir configurations figure

Figure 17 is the diaphragm type reservoir structural map

Figure 18 is heat pump figure (11)

Figure 19 is multiple heat pump heat recovering air conditioner set constructor figure

Description of reference numerals:

1, wind pushing box, 2, air exhaust box, 3,21, fresh wind port, 4, return air inlet, 5,20, filter, 6,51,57, evaporimeter, 7, dividing plate, 8,67,69,70,72, the refrigerant circulation pipe, 9, pressure fan, 10,13, exhaust outlet, 11,12, air outlet, 14, electric cabinet, 15, exhaust blower, 16, compressor, 17, water fender, 18, humidifier, 19, condenser, 22, air inlet, 23, reheater, 24, the oil return capillary, 25, oil eliminator, 26, water cooler, 27, four-way change-over valve, 29,31,37,40,58, the expansion throttling device, 30,36,46,59,79, reservoir, 28,32,42,47,60,68,71, device for drying and filtering, 33, gas-liquid separator, 34,35,77,78,80,81, magnetic valve, 38,39,52,53,54,55, check valve, 41,43,44,45,50,61, valve, 48,49, electric control valve, 56, show the liquid mirror, 62, cylinder baffle, 63, piston, 64, the throttle orifice pipe, 65, heat-insulation layer, 66,73, cylinder end piece, 74, tank body, 75, barrier film, 76, grid, 82, low pressure gas pipe, 83, high-pressure air pipe, 84, high-pressure liquid tube, 85, room air conditioner

The implementation way

Fig. 1 is a kind of Contiuum type heat recovering air conditioner set constructor figure, and this equipment is comprised of wind pushing box 1, air exhaust box 2, refrigeration system, power distribution control system four major parts.

The materials such as casing employing steel plate are made, and are incubated with insulation materials such as polyurethane.Casing is provided with inspection door, is convenient to personnel and enters inspection and maintenance in the case.Disconnected by dividing plate 7 between wind pushing box 1 and the air exhaust box 2, paste insulation material, prevent from altering between new wind and the air draft wind and heat exchange.Wind pushing box 1, air exhaust box 2 can be made all-in-one-piece, and required equipment is installed in the complete casing, and all-in-one-piece air-conditioning unit is not easy to transportation, installs and maintenance, but saves material; Also can make sectionally assembledly, the equipment of difference in functionality is placed in several functional sections, make several small box, behind the scene, be assembled into again an integral body.For example: in the wind pushing box 1, fresh wind port 3, return air inlet 4, filter 5 are made air intake hybrid filtering section, by that analogy, can make blower section, evaporimeter section, humidifying air-supplying section.Air exhaust box 2 can be made air intake hybrid filtering section, condenser section, refrigeration host computer and electric cabinet section, exhaust blower section.Every section can disassembly and assembly, are convenient to transportation, install and maintenance.Wind pushing box 1, air exhaust box 2 can add other functional section as required, such as additional electrical bringing-up section, air sterillization section, muffler section, maintenance section etc.

Refrigeration system host machine part (compressor 16 equipment such as grade) can be placed in the casing, also can be placed on outside the casing, and the equipment such as evaporimeter 6, condenser 19, refrigerant circulation pipe 8 are positioned at casing.The heat exchanger of the forms such as evaporimeter 6, condenser 19 employing direct-expansion type structure coil pipes guarantees that cold-producing medium evaporates and condensation therein, and heat exchanger is made of copper pipe and aluminium fin, and this refrigeration system is single cooling system.

The electric cabinet 14 of power distribution control system is equipped with controller, display, controller switching equipment etc., can hang over outside the casing, also can embed in the casing, or arrange with the casing split, and various distribution and control appliance and line distribution are in casing.Pass through the various pipelines of dividing plate 7 and should do encapsulation process, prevent from leaking out.

When summer, equipment was worked, in wind pushing box 1 under the effect of pressure fan 9, the new wind of outdoor high temperature high humidity enters in the case from return air inlet 4 from fresh wind port 3, indoor return air, by filter 5 dust removal and filtrations, by evaporimeter 6, cool-down dehumidification is cooled after mixing, after reaching the humiture of setting, through pressure fan 9, deliver to air conditioning area from air outlet 11, this moment, exhaust outlet 10 was closed; Under the effect of exhaust blower 15, outdoor new wind enters in the case from air inlet 22 from fresh wind port 21, indoor exhaust wind in air exhaust box 2, mixes rear by filter 20 dust removal and filtrations, by condenser 19, be heated intensification, drain into by exhaust blower 15, exhaust outlet 13 more outdoor, this moment air outlet 12 close.In wind pushing box 1, evaporimeter 6 evaporation endothermics, air-supply is by cool-down dehumidification; In air exhaust box 2, condenser 19 is cooled by indoor-outdoor air, and the cold in the indoor exhaust wind is recovered utilization.

When winter, equipment was worked, the air-conditioning unit sent hot blast to air-conditioned room, because refrigeration system is single cooling system, need close air outlet 11, exhaust outlet 13, opens exhaust outlet 10, air outlet 12, and wind pushing box 1 is converted to air exhaust box, and air exhaust box 2 is converted to wind pushing box.Under the effect of pressure fan 9, the new wind of outdoor low temperature enters in the case from return air inlet 4 from fresh wind port 3, indoor exhaust wind in wind pushing box 1, and by filter 5 dust removal and filtrations, by evaporimeter, the cooling that is cooled drains into outdoor through pressure fan 9, exhaust outlet 10 after mixing; In air exhaust box 2 under the effect of exhaust blower 15, outdoor new wind enters in the case from air inlet 22 from fresh wind port 21, indoor return air, mix rear by filter 20 dust removal and filtrations, be heated intensification by condenser 19, if humidity is low, also need humidifier 18 humidifications, reach the humidity of setting after, deliver to air conditioning area through water fender 17, exhaust blower 15 from air outlet 12.In wind pushing box 1, evaporimeter 6 evaporation endothermics absorb the heat in the air draft; In air exhaust box 2, condenser 19 condensation heat releases, return air and outdoor new wind in the heating clamber, the heat in the indoor exhaust wind is recovered utilization.Before the equipment operation in winter, air exhaust box 2 should be cleaned up, avoid air-conditioning contaminated.

Like this, by the switching of air-valve, utilize single cold refrigeration system, also can realize sending summer and send the purpose of hot blast in cold wind, winter.

During the equipment operation, the controller switching equipment of power distribution control system provides power supply for refrigeration system, pressure fan 9, exhaust blower 15, electronic air quantity regulating tuyere, automatic control system.Refrigeration system is the varying capacity system, compressor 16 is variable conpacitance compressor, pressure fan 9, exhaust blower 15 is the frequency control blower fan, fresh wind port 3,21, return air inlet 4, exhaust outlet 10,13, air outlet 11,12, air inlet 22 is electronic air quantity regulating tuyere, also can adopt manually, electric dual-purpose air quantity regulating tuyere, automatic control equipment is according to the variation of indoor-outdoor air parameter, the capacity of control compressor 16, automatically regulate refrigerating capacity or the heating capacity of refrigeration system, the rotating speed of control pressure fan 9 and exhaust blower 15, the aperture in each air port, automatically regulate air quantity, guarantee the efficient and stable operation of air-conditioning unit.The equipment such as controller, display, sensor, actuator are arranged in the automatic control system, usually adopt microcomputer control (such as the PLC controller), have the functions such as autonomous setup parameter, fault detect, automatic alarm, can pass through the touch-screen field control, also can pass through computer keyboard, mouse long control, and realize network control by LAN, internet.

During summer operation, evaporimeter 6 can produce a large amount of cryogenic condensation water, for energy-conservation, can this part cryogenic condensation water be sprayed onto in the air exhaust box 2 by the way of flow by gravity or water pump pressurization, is used for cooling, air discharging or condenser 19.The condensed water water-collecting tray is housed below evaporimeter 6, collects condensed water, and be discharged to outside the casing.Wind pushing box 1, air exhaust box 2 can be placed on indoor, also can be placed on outdoorly, as are placed on the roof, can reduce floor space.In addition, advance, the direction of air draft and the position in air port also can adjust as required.

In the said equipment, in the wind pushing box 1 with return air inlet 4, can process chamber in return air, this unit is applicable to the all-air conditioning system, such as air conditioning system with variable, is applicable to megastore, office building.When without return air inlet 4, this equipment is the whole fresh wind air-condition unit, blows to be all-fresh air, and sanitation and hygiene are applicable to the higher hotel of air sanitary standard, hospital.

Fig. 2 is a kind of split type heat recovering air conditioner set constructor figure, wind pushing box 1 is what to separate with air exhaust box 2, when equipment dispatches from the factory, the refrigerant circulation pipe 8 that evaporimeter 6 or condenser 19 are connected with the refrigeration system main frame is disconnection and sealing, all kinds of circuits that are connected with electric cabinet 14 also disconnect, during on-the-spot the installation, refrigerant circulation pipe 8 connects by snap joint, all kinds of circuit access electric cabinets 14.Two casings can be placed on according to user's needs different positions, arrange more flexibly, for example can be placed on air exhaust box 2 on the roof, save floor space, reduce the impact of unit noise.

Fig. 3 is split type Double-machine type heat pump heat recovering air conditioner set constructor figure, and it has two to overlap independently refrigeration system.Wherein a cover is heat pump, is used for cooling or adds hot-air; Another set of is single cooling system or heat pump, is used for again hot cooled air, or both can be used for again heat, also can be used for cooling, for subsequent use each other with another set of heat pump, although increased equipment, Reliability Enhancement.Therefore this equipment has the required two low-temperature receivers of air-conditioning, two low-temperature receiver, a cold thermal source, single low-temperature receiver, single thermal source, and it is required to satisfy multiple air conditioning condition.When need air-conditioning hot again summer, in new bellows 1, the evaporimeter 6 in left side is converted into condenser, use as reheater, after indoor return air and outdoor new wind mix, through the cool-down dehumidification of right side evaporimeter 6, be heated to the wind pushing temperature of setting by the evaporimeter 6 in left side first, this moment is in air exhaust box 2 again, the condenser 19 in left side is converted into evaporimeter, the cooling that is cooled of indoor exhaust wind and outdoor new wind becomes the low temperature cold air, then is sent to the condenser 19 on right side, be used for the condensation heat radiation, refrigerating efficiency improves, and has offset because of the hot energy consumption that increases again, and the cold in the indoor exhaust wind is recycled utilization.Because two cover refrigeration systems are arranged, with two evaporimeters, be two low-temperature receivers, wherein right side evaporimeter 6 can be used for the cool-down dehumidification of outdoor new wind, left side evaporimeter 6 can be used for the dry type cooling of indoor return air, thereby realize that summer, humiture was independently controlled, process is: right side return air inlet 4 is closed or is cancelled, the new wind of outdoor high temperature humidity enters from fresh wind port 3, through the cool-down dehumidification of right side evaporimeter 6, become dry air, mix with the indoor return air that left side return air inlet 4 enters, pass through again the cooling of left side evaporimeter 6, send into air-conditioned room after reaching the temperature of setting, because left side evaporimeter 6 is not used in dehumidifying, its evaporating temperature can be brought up to about 16 ℃, the efficient of refrigeration system increases significantly, and reaches energy-conservation purpose.The said equipment also can be made Contiuum type air-conditioning unit shown in Figure 1, and two cover refrigeration systems guarantee harmonious, efficient stable operation under automatic control equipment is accurately controlled.

Fig. 4 is the heat pump heat recovering air conditioner set constructor figure of Contiuum type band double evaporators or reheater, also can be described as again heating type heat pump heat recovery air conditioner unit, it is heat pump and two evaporimeters with a cover, wherein reheater 23 can be converted into evaporimeter, therefore this equipment not only can have hot merit energy again in summer, can realize that also summer, humiture was independently controlled.When using the hot merit energy, the return air inlet 4 between evaporimeter 6 and reheater 23 is closed again, and indoor return air enters from the return air inlet 4 on right side, outdoor new wind enters from fresh wind port 3, after both mix, pass through first the cool-down dehumidification of evaporimeter 6, be heated to again the wind pushing temperature of setting by reheater 23.When summer, humiture was independently controlled, return air inlet 4 between evaporimeter 6 and reheater 23 is opened, reheater 23 is converted into evaporimeter, the return air inlet 4 on right side is closed, and the new wind of outdoor high temperature humidity enters from fresh wind port 3, through the cool-down dehumidification of evaporimeter 6, become dry air, mix with the indoor return air that left side return air inlet 4 enters, again through the cooling of the dry type of reheater 23, send into air-conditioned room after reaching the temperature of setting.

Fig. 5 is split type heat pump heat recovering air conditioner set constructor figure with double evaporators or reheater, and wind pushing box 1 is what to separate with air exhaust box 2,

Its flexible arrangement can effectively be utilized the space, transportation and easy for installation.

Fig. 6 is above-mentioned heat pump heat recovering air conditioner group heat pump figure, when system carried out kind of refrigeration cycle, the refrigerant circulation process was such: compressor 16 → oil eliminator 25 → water cooler 26 → four-way change-over valve 27 → condenser 19 → device for drying and filtering 28 → expansion throttling device 29 → reservoir 30 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16; When system heats circulation time, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → water cooler 26 → four-way change-over valve 27 → evaporimeter 6 → device for drying and filtering 32 → expansion throttling device 31 → reservoir 30 → expansion throttling device 29 → device for drying and filtering 28 → condenser 19 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16.

The high pressure-temperature gaseous refrigerant of discharging from compressor 16 oil eliminator 25 with lubricating oil separation, by oil return capillary 24, lubricating oil is back to compressor 16, also can be by the alternate manner lubricating oil that refluxes.

Water cooler 26 band having heaters, when high temperature refrigerant passes through, heating running water wherein, for the user provides the domestic hot-water, also saved fuel cost, the heat owing to cold-producing medium is absorbed by running water simultaneously, the resh air requirement that is used for condensating refrigerant just can reduce, and blower fan power consumption reduces.Water cooler 26 can adopt the versions such as helix tube type, shell-tube type, bushing type, uses enclosed that pressure vessel or open type non-pressure vessel are arranged, and what adopt among Fig. 6 is the open type non-pressure vessel, it from compressor 16 exhaust outlets more close to, the recuperation of heat effect is better.In the winter time, water cooler 26 quits work usually, do not produce hot water, the condensation heat of cold-producing medium is used for the air-conditioning heating, if water cooler 25 also can be produced hot water in the winter time, need to strengthen power system capacity, improve quantity of heat production, as: increase the power of compressor 16, the exhaust air rate of outdoor resh air requirement and exhaust blower 15 in the increasing exhaust case 2.

Four-way change-over valve 27 is used for the conversion of heat pump refrigeration and heating condition, and it also can use the equipment such as magnetic valve, check valve to replace.

Expansion throttling device 29,31 is unidirectional expansion throttling device, during refrigeration, expansion throttling device 29 standard-sized sheets, 31 throttlings, when heating, electric expansion valve is adopted in expansion throttling device 31 standard-sized sheets, 29 throttlings usually, adjusting refrigerant flow rate more quick and precisely, also can adopt other expansion throttling device, such as capillary, be applicable to mini-system.

When the heat pump load variations, reservoir 30 is used for storing unnecessary high pressure liquid refrigerant.

Gas-liquid separator 33 is used for separating of gaseous state and liquid refrigerant, guarantees that the cold-producing medium that enters in the compressor is gaseous state, avoids liquid hammer to occur.

Compressor 16 adopts variable conpacitance compressor, as: frequency conversion rotator type, vortex, screw compressor.When the cooling system amount, when heating capacity changes, compressor 16 is in good time varying capacity output also, realizes energy-saving run.When multiple compressors 16 parallel running is arranged in the heat pump, compressor 16 all adopts the constant volume compressor, or all adopts variable conpacitance compressor, perhaps adopts the combination of variable conpacitance compressor and constant volume compressor, the combinations thereof mode can realize the varying capacity operation, reaches energy-conservation purpose.

In addition, in the heat pump except the auxiliary equipment such as oil return capillary 24, oil eliminator 25, four-way change-over valve 27, reservoir 30, device for drying and filtering 28,32, gas-liquid separator 33, also be provided with other auxiliary equipment, as: liquid-sighting glass, regenerator, recooler, temperature, pressure sensor etc.Robot control system(RCS) is according to the variation of system temperature, pressure, and the operation conditions of automatic regulating system keeps the high efficiency operation of heat pump.

Fig. 7 is the heat pump figure of again heating type heat pump heat recovery air conditioner unit, it is with reheater 23, when system carries out again refrigeration heat circulation time, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → water cooler 26 → four-way change-over valve 27 → condenser 19 → reheater 23 → check valve 38 → device for drying and filtering 28 → expansion throttling device 29 → reservoir 36 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16; When system heats circulation time, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → water cooler 26 → four-way change-over valve 27 → evaporimeter 6 → device for drying and filtering 32 → expansion throttling device 31 → reservoir 30 → expansion throttling device 29 → device for drying and filtering 28 → condenser 19 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16.

When kind of refrigeration cycle, high-temperature high-pressure refrigerant by indoor exhaust wind and for the first time condensation of outdoor new wind, is taken away a part of condensation heat in condenser 19, then enter in the reheater 23 by for the second time condensation, thereby finish whole condensation processes, this process is accurately controlled by automatic control system and is finished.Because of two condensers of Cascade System, this system can be described as tandem double-condenser heat pump.Indoor return air and outdoor new wind by evaporimeter 6 cool-down dehumidifications after, be reheated to wind pushing temperature by reheater 23, required heat is the condensation heat of heat pump discharging, and do not need additionally to increase heat, indoor exhaust wind is used for cooler condenser 19, cold wherein is recovered utilization, has realized energy-conservation purpose.

When heating circulation time, open expansion throttling device 37, the part of refrigerant throttling is low-temperature refrigerant, the liquid refrigerant heat exchange higher with temperature in reservoir 36, evaporation endothermic, temperature gets a promotion.Then, open magnetic valve 34, part of refrigerant enters in the screw compressor 16 with intermediary interface, increases gas and mends enthalpy; Open magnetic valve 35, the cold-producing medium that a part of temperature is higher enters in the gas-liquid separator 33, has improved the suction temperature of compressor 16, has improved operating condition, and heat pump winter heating efficient also increases.

Fig. 8 is the another kind of again heat pump figure of heating type heat pump heat recovery air conditioner unit, when system carries out again refrigeration heat circulation time, valve 41,44, expansion throttling device 29 cuts out, all the other are opened, 31 throttling actions of expansion throttling device, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → condenser 19 → device for drying and filtering 28 → expansion throttling device 40 → reheater 23 → valve 43 → reservoir 30 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → valve 45 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16, the same with Fig. 7, condenser 19 among Fig. 8 also is series relationship with reheater 23, also can be described as tandem double-condenser heat pump.

When system heats circulation time, valve 45, expansion throttling device 29,31 open, all the other are closed, 29 throttling actions of expansion throttling device, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → valve 45 → evaporimeter 6 → device for drying and filtering 32 → expansion throttling device 31 → reservoir 30 → expansion throttling device 29 → device for drying and filtering 28 → condenser 19 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16, when valve 43,45, expansion throttling device 40 cuts out, valve 41,44 open, reheater 23 also can be used as condenser and adds hot-air, and is for subsequent use each other with evaporimeter 6.

When system carries out non-again refrigeration heat circulation time, valve 44,45, expansion throttling device 29,31,40 open, valve 41,43 close, expansion throttling device 31,40 throttling actions, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → condenser 19 → device for drying and filtering 28, at this minute two-way, one tunnel → expansion throttling device, 40 → reheater, 23 → valve 44, another road → expansion throttling device 29 → reservoir 30 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → valve 45, two-way converges → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16 at this, reheater 23 is converted into evaporimeter, system has formed two evaporimeters, have two low-temperature receivers, 6 pairs of new wind of available evaporimeter carry out cool-down dehumidification, carry out the dry type cooling with 23 pairs of indoor return air of reheater, thereby realized the independent control of humiture.

Fig. 9 also is a kind of heat pump figure of again heating type heat pump heat recovery air conditioner unit, when system carries out again refrigeration heat circulation time, valve 44 is closed, all the other are opened, 31 throttling actions of expansion throttling device, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27, at this minute two-way, one tunnel → electric control valve, 48 → condenser, 19 → device for drying and filtering, 28 → expansion throttling device 29, another road → electric control valve 49 → reheater 23 → device for drying and filtering 47 → expansion throttling device 40, two-way converges → reservoir 46 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → valve 45 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16 at this, in this process, condenser 19 all is condenser with reheater 23, belongs to relation in parallel, and this system can be described as parallel double-condenser heat pump.

When system heats circulation time, valve 44,45, expansion throttling device 29,31,40, electric control valve 48 is opened, electric control valve 49 cuts out, 29 throttling actions of expansion throttling device, reheater 23, evaporimeter 6 is converted into condenser, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27, at this minute two-way, one tunnel → valve, 45 → evaporimeter, 6 → device for drying and filtering, 32 → expansion throttling device, 31 → reservoir 46, another road → valve 44 → reheater 23 → device for drying and filtering 47 → expansion throttling device 40, two-way converges → expansion throttling device 29 → device for drying and filtering 28 → condenser 19 → electric control valve 48 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16 at this.Open, 45 close when valve 44, reheater 23 adds separately hot-air as condenser, and evaporimeter 6 is not worked; Open, 44 close when valve 45, evaporimeter 6 adds separately hot-air as condenser, and reheater 23 is not worked.Heat in the winter time circulation time, open expansion throttling device 37, magnetic valve 34,35, flash steam in reservoir 46 enters in the screw compressor 16 with intermediary interface, increase gas and mend enthalpy, also can enter in the gas-liquid separator 33, improved the suction temperature of compressor 16, improved operating condition, heat pump winter heating efficient also increases.

When system carries out non-again refrigeration heat circulation time, electric control valve 49 cuts out, all the other are opened, expansion throttling device 31,40 throttling actions, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → electric control valve 48 → condenser 19 → device for drying and filtering 28 → expansion throttling device 29, at this minute two-way, one tunnel → expansion throttling device, 40 → device for drying and filtering, 47 → reheater, 23 → valve 44, another road → reservoir 46 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → valve 45, two-way converges → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16 at this, reheater 23 is converted into evaporimeter, system has formed two evaporimeters, have two low-temperature receivers, 6 pairs of new wind of available evaporimeter carry out cool-down dehumidification, the wind that mixes with the outdoor new wind behind 23 pairs of indoor return air of reheater or indoor return air and the cool-down dehumidification carries out the dry type cooling, thereby has realized the independent control of humiture.

In Figure 10 heat pump with two evaporimeters 6,51, both are connected in parallel in the system, also can be described as double-cold source heat pump heat recovery air conditioner unit in parallel, when carrying out kind of refrigeration cycle, it can realize the independent control of humiture, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → condenser 19 → device for drying and filtering 28 → expansion throttling device 29, at this minute two-way, one tunnel → valve, 50 → evaporimeter, 51 → valve 44, another road → reservoir 30 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → valve 45, two-way converges → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16 at this.The liquid cold-producing medium of HTHP passes through first the throttling first time of expansion throttling device 29, become evaporating temperature and be the low-temp low-pressure liquid refrigerant about 16 ℃, a part flows into evaporimeter 51, a part is inflated flow controller 31 secondary deep throttlings, become evaporating temperature and be the low-temp low-pressure liquid refrigerant about 6 ℃, enter in the evaporimeter 6, the outdoor high temperature highly humid air is carried out cool-down dehumidification, then directly send into air-conditioned room, perhaps with after indoor return air mixes, process through the cooling of evaporimeter 51 again, send into again air-conditioned room.Evaporating temperature is the evaporimeter 51 of flowing through of the low-temp low-pressure liquid refrigerant about 16 ℃, the outdoor new wind in the process chamber behind return air or indoor return air and the cool-down dehumidification mix wind, only doing the cooling processing, and not doing dehumidification treatments, send at last air-conditioned room.

When system heats circulation time, 29 throttling actions of expansion throttling device, evaporimeter 6,51 is converted into condenser and adds hot-air, and both can work simultaneously, perhaps work independently respectively.

Figure 11 also is in a kind of heat pump of double-cold source heat pump heat recovery air conditioner unit in parallel.Expansion throttling device 31 carries out cool-down dehumidification for evaporimeter 6 provides the liquid refrigerant of the low-temp low-pressure about 6 ℃ to the outdoor high temperature highly humid air; Expansion throttling device 40 provides the liquid refrigerant of the low-temp low-pressure about 16 ℃ for evaporimeter 51, the wind that mixes to the outdoor new wind behind indoor return air or indoor return air and the cool-down dehumidification, only do cooling and process, and do not do dehumidification treatments, thereby realized the independent control of humiture.

Figure 12 heat pump and Figure 10 are similar, but owing to increased check valve, when humiture was independently controlled, the restriction effect of expansion throttling device 29 was better.

In Figure 13 heat pump, two evaporimeters 6, the 57th, series relationship also can be described as series connection double-cold source heat pump heat recovery air conditioner unit.When system carries out kind of refrigeration cycle, 31 throttling actions of expansion throttling device, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → condenser 19 → device for drying and filtering 28 → expansion throttling device 29 → reservoir 30 → expansion throttling device 31 → device for drying and filtering 32 → evaporimeter 6 → evaporimeter 57 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16, expansion throttling device 31 provides the liquid refrigerant of the low-temp low-pressure about 6 ℃ for evaporimeter 6, the outdoor high temperature highly humid air is carried out cool-down dehumidification, then cold-producing medium becomes the superheated steam about 16 ℃ or is lower than 16 ℃ gas liquid mixture, enter in the evaporimeter 57, to indoor return air, perhaps the wind that mixes of the outdoor new wind behind indoor return air and the cool-down dehumidification carries out cooling dry type and processes, the situation of cool-down dehumidification also might occur, therefore the mode of this pair of low-temperature receiver series connection minute process control can realize that also humiture independently controls; When system heats circulation time, 29 throttling actions of expansion throttling device, two evaporimeters 6,57 convert condenser to, the refrigerant circulation process is such: compressor 16 → oil eliminator 25 → four-way change-over valve 27 → evaporimeter 57 → evaporimeter 6 → device for drying and filtering 32 → expansion throttling device 31 → reservoir 30 → expansion throttling device 29 → device for drying and filtering 28 → condenser 19 → four-way change-over valve 27 → gas-liquid separator 33 → compressor 16, outdoor cold air is heated by evaporimeter 6 first, with after indoor return air mixes again by evaporimeter 57 post bake.

In the heat pump shown in Figure 14, expansion throttling device 58 is two-way expansion throttling device, it has replaced the unidirectional expansion throttling device 29,31 among Figure 13, reservoir 59 adopts air-cylinder type or diaphragm type reservoir, it has replaced the reservoir 30 among Figure 13, device for drying and filtering 28,32, the function of system and the system of Figure 13 are identical, but refrigeration system is simplified.The structural map of air-cylinder type, diaphragm type reservoir is seen Figure 16,17.

The function of heat pump shown in Figure 15 is identical with Fig. 8, owing to adopt two-way expansion throttling device 58, air-cylinder type or diaphragm type reservoir 59, system is simplified.

Figure 16 is air-cylinder type reservoir configurations figure, this reservoir is comprised of cylinder baffle 62, piston 63, cylinder end piece 66,73, device for drying and filtering 68,71, refrigerant circulation pipe 67,69,70,72 etc., it is contained on the refrigerant circulation line between evaporimeter, the condenser, refrigerant circulation pipe 67,72 links to each other with evaporimeter, condenser respectively, refrigerant circulation pipe 69,70 links to each other with two-way expansion throttling valve respectively, refrigerant circulation pipe 67,69 and 70,72 is connected on respectively on the cylinder end piece 66,73, communicate with cylinder, the mouth of pipe is near the bottom of cylinder end piece.Device for drying and filtering 68,71 is housed in cylinder end piece 66,73, and it is comprised of drier and filter, and drier can adopt molecular sieve etc., and filter can adopt screen pack etc., is used for filtering impurity and the moisture of cold-producing medium.Piston 63 can slide in cylinder, when supposing the system carries out kind of refrigeration cycle, high pressure liquid refrigerant from condenser enters cylinder end piece 73 by refrigerant circulation pipe 72, be dried and enter cylinder after filter 71 is processed, the unnecessary high pressure liquid refrigerant of a part is stored in the cylinder, a part enters into two-way expansion throttling valve by refrigerant circulation pipe 70 again, be low-pressure, liquid refrigerant by throttling, by refrigerant circulation pipe 69, flow back into cylinder from cylinder end piece 66, at last by device for drying and filtering 68, refrigerant circulation pipe 67 flows out again cylinder, advances in the evaporimeter.Because an end is high pressure liquid refrigerant in the cylinder, the other end is low-pressure, liquid refrigerant, forms pressure reduction in piston 63 both sides, thereby pushing piston 63 moves to low-pressure end from high-pressure side, is to move from right to left among the figure, the top during to cylinder end piece 66 till.Between piston 63 right sides and cylinder end piece 73, form so a larger cavity space, guarantee that unnecessary high pressure liquid refrigerant stores wherein.Piston 63 is with throttle orifice pipe 64, and a small amount of high pressure liquid refrigerant can be throttled to low-pressure side from throttle orifice pipe 64, also has the micro-fit clearance of high pressure liquid refrigerant between piston 63 and cylinder wall to be throttled to low-pressure side.Throttle orifice pipe 64 two ends can be with reclinate tubule, and it extend into below the liquid level, guarantees that the liquid refrigerant of bottom by throttling, has heat-insulation layer 65 in piston 63, can reduce heat transfer.When system heats circulation time, the cold-producing medium reverse flow, the left side of piston 63 becomes the high-pressure side, the right side becomes low-pressure side, it is pushed to right-hand member, the top during to cylinder end piece 73 till, unnecessary high pressure liquid refrigerant is stored in the cylinder in piston 63 left sides.

Figure 17 is the diaphragm type reservoir structural map, and it is comprised of tank body 74, barrier film 75, device for drying and filtering 68,71, refrigerant circulation pipe 67,69,70,72 etc.Its method of attachment in refrigeration system is identical with air-cylinder type reservoir among Figure 16.Barrier film 75 is high strength, non-leakage elasticity or flexible material, and it is positioned at the central authorities of tank body 74, two spaces independently about being divided into.When system-down, pressure balance, barrier film 75 is in the relaxed state of arbitrary shape.Be connected with refrigerant circulation pipe 67,69,70,72 and device for drying and filtering 68,71 in the bottom of tank body 74, refrigerant circulation pipe 67,69 is connected with barrier film 75 leftward space, refrigerant circulation pipe 70,72 is connected with barrier film 75 rightward space, and throttle orifice pipe 64 is connected space, barrier film 75 both sides.When refrigerant circulation pipe 70,72 connects high-pressure side, high pressure liquid refrigerant enters by refrigerant circulation pipe 72, be dried and enter tank body 74 after filter 71 is processed, the unnecessary high pressure liquid refrigerant of a part stores in it, a part enters into two-way expansion throttling valve by refrigerant circulation pipe 70 again, is low-pressure, liquid refrigerant by throttling, flows back in the tank by refrigerant circulation pipe 69, flow out again cylinder by device for drying and filtering 68, refrigerant circulation pipe 67 at last, advance in the evaporimeter.Because the right side is high pressure liquid refrigerant, the left side is low-pressure, liquid refrigerant, forms pressure reduction in barrier film 75 both sides, barrier film 75 stretches left or expands, and is close to the inwall of tank body 74, forms larger space on the right side, high pressure liquid refrigerant is circulation cycle therein, and unnecessary part stores wherein; Otherwise, the cold-producing medium reverse flow, barrier film 75 expands to the right.Grid 76 can stop barrier film 75 to stretch downwards, prevents from stopping up the refrigerant circulation pipe mouth of pipe.

Reservoir 79 is connected across the two ends of two-way expansion throttling valve 58 by magnetic valve 80,81 among Figure 18, and the side of being located thereon, and is positioned at the below of condenser 19, evaporimeter 6.When carrying out kind of refrigeration cycle, condenser 19 is during as condenser, magnetic valve 77,81 is opened, all the other are closed, magnetic valve 77 is connected on the air inlet end of condenser 19, be connected with reservoir 79 inner refrigerant liquid levels, can guarantee that high pressure liquid refrigerant relies on self gravitation turnover reservoir 79, and shwoot or the vaporization of liquid refrigerant can not occur.When heating circulation, evaporimeter 6 is during as condenser, magnetic valve 78,80 open, all the other are closed, magnetic valve 78 is connected on the air inlet end of evaporimeter 6, be connected with reservoir 79 inner refrigerant liquid levels, can guarantee that high pressure liquid refrigerant relies on self gravitation turnover reservoir 79, and shwoot or the vaporization of liquid refrigerant can not occur, if magnetic valve 78 cuts out, expansion throttling device 37, magnetic valve 34,35 open, and the flash steam that can utilize reservoir 79 to produce is mended enthalpy and improved suction temperature for compressor 16 increases gas, improve operating condition, improve heat pump winter heating efficient.Reservoir 79 can be described as the gravity current reservoir.

Figure 19 is multiple heat pump heat recovering air conditioner group, it is three-pipe heating reclaiming type heat pump air conditioner unit, an air exhaust box 2 is with two wind pushing box 1, a room air conditioner 85, it can be with more unit, wind pushing box 1 can not only carry out again hot air treatment, can realize that also humiture independently controls.

The above only is better implementing method of the present invention, is not that the present invention is done any pro forma restriction.Any simple modification, equivalent variations and modification according to technical spirit of the present invention is done above implementing method all belong to protection scope of the present invention.

Claims (10)

1. heat recovery air conditioner unit, it is comprised of wind pushing box, air exhaust box, refrigeration system, power distribution control system, and wind pushing box is with fresh wind port, return air inlet, air outlet, evaporimeter, pressure fan, filter, additional function section; Air exhaust box is with air inlet, fresh wind port, exhaust outlet, condenser, exhaust blower, filter, additional function section; Refrigeration system is comprised of compressor, condenser, expansion throttling device, evaporimeter, servicing unit, refrigerant circulation pipe, cold-producing medium; Power distribution control system is comprised of controller switching equipment and automatic control equipment, it is characterized in that, fresh wind port connects outdoor air, return air inlet connects indoor return air, air outlet connects the indoor air-conditioning system air supply duct, and air inlet connects indoor exhaust wind, and exhaust outlet connects outdoor air, wind pushing box can be with return air inlet, also can not be with return air inlet; Outdoor new wind and indoor return air is by pressure fan suction draft case, through the processing of filter, evaporimeter, additional function section, reach the air-conditioning parameter of setting after, deliver to air conditioning area by air outlet; Outdoor new wind and indoor exhaust wind are sucked air exhaust box by exhaust blower, after the processing through filter, condenser, additional function section, are discharged to outdoor by exhaust outlet; Wind pushing box, air exhaust box are all-in-one-piece, or sectionally assembled, are airtight partition between wind pushing box and the air exhaust box; Refrigeration system can be heat pump, also can be single cooling system, and its evaporimeter is contained in the wind pushing box, during refrigeration, be used for cooling-air, when heating, convert condenser to, be used for adding hot-air, its condenser is contained in the air exhaust box, during refrigeration, condensation heat is taken away by indoor exhaust wind and outdoor new wind, when heating, convert evaporimeter to, absorb the heat in indoor exhaust wind and the outdoor new wind; Compressor and the servicing unit of heat pump are contained in the air exhaust box, or are contained in the wind pushing box, also can be contained in outside wind pushing box, the air exhaust box; The electric cabinet of power distribution control system embeds in air exhaust box or the wind pushing box, or hangs over wind pushing box, air exhaust box outside, or arranges with wind pushing box, air exhaust box split.
2. heat recovery air conditioner unit according to claim 1 is characterized in that, air exhaust box can be monoblock type, split type, multiple with being connected of wind pushing box, accordingly, refrigeration system also can be monoblock type, split type, multiple, and they can be placed on indoor, also can be placed on outdoor.
3. heat recovery air conditioner unit according to claim 1, it is characterized in that, pressure fan, exhaust blower are the frequency control blower fans, compressor is the separate unit variable conpacitance compressor, perhaps many variable conpacitance compressor parallel combinations use, perhaps many constant volume compressor parallels are used in combination, and perhaps many varying capacities and constant volume compressor parallel are used in combination, and the air-conditioning unit can the varying capacity operation.
4. .Heat recovery air conditioner unit according to claim 1 is characterized in that, when refrigeration system was single cooling system, wind pushing box sent cold wind summer, and by the switching of air-valve, air exhaust box can be converted into wind pushing box, is used for sending winter hot blast.
5. .Heat recovery air conditioner unit according to claim 1, it is characterized in that, Double-machine type heat pump heat recovering air conditioner group is with two cover refrigeration systems, wherein a cover is heat pump, is used for cooling or the heating of air, and another set of is single cold or heat pump, be used for again heat or the cooling of air, can can not only carry out again hot air treatment for air-conditioning provides the combination of multiple Cooling and Heat Source, can realize that also humiture independently controls.
6. heat recovery air conditioner unit according to claim 1, it is characterized in that, the device of refrigerant flow in heating type heat pump heat recovery air conditioner unit band reheater and the control reheater again, reheater also can convert evaporimeter or condenser to, in parallel with condenser or be connected in the refrigeration system, can not only carry out again hot air treatment, can realize that also humiture independently controls.
7. .Heat recovery air conditioner unit according to claim 1 is characterized in that, double-cold source heat pump heat recovery air conditioner unit is with two evaporimeters, and both are in parallel or be connected in the heat pump, can realize that humiture independently controls.
8. heat recovery air conditioner unit, it is by wind pushing box, air exhaust box, refrigeration system, power distribution control system forms, wherein a kind of refrigeration system is with air-cylinder type reservoir that can the storing liquid cold-producing medium, it is characterized in that, the air-cylinder type reservoir is mainly by cylinder baffle, piston, cylinder end piece, device for drying and filtering, the refrigerant circulation pipe forms, on the cylinder end piece at cylinder baffle two ends with refrigerant circulation pipe and device for drying and filtering, when cold-producing medium passes in and out cylinder by the refrigerant circulation pipe, to process through device for drying and filtering, piston can move in cylinder, it moves to low-pressure end from high-pressure side, thereby in cylinder, form the space that stores high pressure liquid refrigerant, a high pressure liquid refrigerant part flows to the expansion throttling valve, unnecessary part stores wherein, the air-cylinder type reservoir is connected on the condenser of refrigeration system and the refrigerant circulation pipe between the evaporimeter, and links to each other with the expansion throttling valve, guarantees circulation and the throttling of cold-producing medium.
9. heat recovery air conditioner unit, it is by wind pushing box, air exhaust box, refrigeration system, power distribution control system forms, wherein a kind of refrigeration system is with diaphragm type reservoir that can the storing liquid cold-producing medium, it is characterized in that, diaphragm type reservoir is mainly by tank body, barrier film, device for drying and filtering, the refrigerant circulation pipe forms, barrier film adopts elasticity or flexible material, it is positioned at the central authorities of tank body, two separate space about being divided into, be connected with refrigerant circulation pipe and device for drying and filtering in the bottom of tank body, when cold-producing medium passes in and out tank body by the refrigerant circulation pipe, to process through device for drying and filtering, the refrigerant circulation pipe is connected with the space of tank body barrier film both sides, when refrigerant circulation pipe one side joint high-pressure side, during another side joint low-pressure end, barrier film stretches or expansion from high side to low side, form the space of larger storage high pressure liquid refrigerant in the high-pressure side, a high pressure liquid refrigerant part flows to the expansion throttling valve, unnecessary part stores wherein, diaphragm type reservoir is connected between the condenser and evaporimeter of refrigeration system, and link to each other with the expansion throttling valve, guarantee circulation and the throttling of cold-producing medium.
10. heat recovery air conditioner unit, it is comprised of wind pushing box, air exhaust box, refrigeration system, power distribution control system, wherein a kind of refrigeration system is with gravity current reservoir that can the storing liquid cold-producing medium, it is characterized in that, it is connected across the two ends of expansion throttling valve by two refrigerant tubings, and the side of being located thereon, and is positioned at the below of condenser, evaporimeter, it is with preventing liquid refrigerant shwoot and the device that flash steam is drawn, and liquid refrigerant relies on self gravitation turnover reservoir.
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CN201210463902XA CN102914011A (en) 2011-05-06 2012-03-05 Heat recovery air-conditioning machine set
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CN2013100568867A CN103075786A (en) 2011-05-06 2012-03-05 Heat-recovery air conditioning unit
CN2013102930566A CN103322656A (en) 2011-05-06 2012-03-05 Heat recycling air conditioner set
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CN103398518A (en) 2013-11-20
CN102767876B (en) 2014-11-12
CN102767876A (en) 2012-11-07
CN103277950A (en) 2013-09-04
WO2012152199A1 (en) 2012-11-15
CN103322656A (en) 2013-09-25
CN102767875A (en) 2012-11-07
CN103075786A (en) 2013-05-01

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