CN102767875A - Air conditioning unit for hot recovery of heat pump - Google Patents
Air conditioning unit for hot recovery of heat pump Download PDFInfo
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- CN102767875A CN102767875A CN2011103455147A CN201110345514A CN102767875A CN 102767875 A CN102767875 A CN 102767875A CN 2011103455147 A CN2011103455147 A CN 2011103455147A CN 201110345514 A CN201110345514 A CN 201110345514A CN 102767875 A CN102767875 A CN 102767875A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F12/003—Use 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat 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
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
- Air-Conditioning For Vehicles (AREA)
- Air Conditioning Control Device (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses an air conditioning unit for a hot recovery of a heat pump, which is composed of an air blowing box, an air exhaust box, a hot pump system and a power distribution control system, wherein the air blowing box processes the outdoor fresh air and then delivers the outdoor fresh air to an indoor space, the air exhaust box discharges the indoor dirt air to the outside; an evaporator of the hot pump system is installed in the air blowing box, and is used for cooling air in the process of cooling, and transformed to a condenser to heating air in the process of heating; the condenser of the hot pump system is installed in the air exhaust box, the condenser is used for absorbing cold in the indoor air and the outdoor air in the process of cooling, and transformed to be an evaporator to absorb the heat in the indoor air and the outdoor air in the process of heating; and therefore, the cold and heat capacities in the indoor discharged air can be recycled, so that the purpose of saving energy is saved is achieved.
Description
Technical field
The invention belongs to field of heating ventilation air conditioning, be specifically related to adopt heat pump 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 draft 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 type air-conditioning unit does not possess Cooling and Heat Source, increase heat transmission equipment, by the outside Cooling and Heat Source is provided.
Summary of the invention
The object of the present invention is to provide a kind of rational in infrastructure, hygiene, fully energy-conservation recuperation of heat air-conditioning unit.
Solution of the present invention is: heat pump recuperation of heat air-conditioning unit is made up of wind pushing box, air draft case, heat pump, power distribution control system.Wind pushing box is made up of fresh wind port, return air inlet, filter, pressure fan, evaporimeter, air outlet, additional function section.The air draft case is made up of air inlet, fresh wind port, filter, condenser, exhaust blower, exhaust outlet, additional function section.Heat pump is made up of compressor, condenser, expansion device, evaporimeter, servicing unit.Power distribution control system is made up 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 the cooling (summer) or the heating (winter) of heat pump evaporimeter, air is processed to the parameter of setting, delivers to each air conditioning area through supply air system.Indoor exhaust wind and outdoor new wind are sucked the air draft case by exhaust blower, discharge outdoor through the heating (summer) or cooling (winter) back of heat pump condenser.
When heat pump is worked summer, because of indoor air temperature is lower than outdoor, utilize the condenser of heat pump in indoor exhaust wind and the outdoor new air cooling air draft case, the cold device that is condensed absorbs.In wind pushing box, outdoor new wind and indoor return air are delivered to air-conditioned room after being lowered the temperature by the evaporator cools of heat pump.Like this, through the kind of refrigeration cycle of heat pump, recycled the cold in the indoor exhaust wind.
When heat pump was worked winter, the condenser of heat pump had converted evaporimeter in the air draft case, because of indoor air temperature than outdoor height, utilize the evaporimeter of heat pump in indoor exhaust wind and the outdoor new wind heating air draft case, heat is evaporated device and absorbs.In wind pushing box, the evaporimeter of heat pump 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, through the circulation that heats of heat pump, recycled the heat in the indoor exhaust wind.
The controller switching equipment of power distribution control system is that heat pump, pressure fan, exhaust blower, electronic air quantity are regulated the air port, automatic control equipment provides power supply; Automatic control equipment is according to the variation of indoor-outdoor air parameter; Automatically regulate the running status in heat pump, pressure fan, exhaust blower, electronic air quantity adjusting air port, guarantee the efficient and stable operation of air-conditioning unit.
Description of drawings
Fig. 1 is Contiuum type heat pump recuperation of heat air conditioner set constructor figure (1)
Fig. 2 is split type heat pump recuperation of heat air conditioner set constructor figure
Fig. 3 is heat pump figure (1)
Fig. 4 is heat pump figure (2)
Fig. 5 is heat pump figure (3)
Fig. 6 is Contiuum type heat pump recuperation of heat air conditioner set constructor figure (2)
Fig. 7 is heat pump figure (4)
Fig. 8 is heat pump figure (5)
Fig. 9 is heat pump figure (6)
Figure 10 is heat pump figure (7)
Figure 11 is Contiuum type heat pump recuperation of heat air conditioner set constructor figure (3)
Figure 12 is heat pump figure (8)
Figure 13 is heat pump figure (9)
Figure 14 is multiple heat pump recuperation of heat air conditioner set constructor figure (1)
Figure 15 is heat pump figure (10)
Figure 16 is multiple heat pump recuperation of heat air conditioner set constructor figure (2)
Figure 17 is multiple heat pump recuperation of heat air conditioner set constructor figure (3)
Figure 18 is heat pump figure (11)
Description of reference numerals:
1, wind pushing box, 2,59, the air draft case, 3,14, fresh wind port, 4, return air inlet, 5,15, filter, 6, pressure fan; 7, dividing plate, 8, evaporimeter, 9, the cold-producing medium circulation pipe, 10, humidifier, 11, water fender; 12, air outlet, 13, air inlet, 16, condenser, 17, compressor, 18,63,64, electric cabinet; 19, exhaust blower, 20, exhaust outlet, 21,22, the bypass air port, 23, the oil return capillary, 24, oil eliminator; 25, water cooler, 26,27, four-way change-over valve, 28, reservoir, 29, device for drying and filtering, 30, liquid-sighting glass; 31,52,53,54,67,72,77,85,86,87, the expansion device, 32, gas-liquid separator, 33,34,35,36,57,58,65,66,68,69,70,71,73,74,75,76,89,90, magnetic valve, 39,40,41,42,56,81,82,83,84, check valve, 43, reheater; 37,38,44,45, electric control valve, 46,47,48,49,50,51, valve, 55, room air conditioner, 60, the low pressure tracheae, 61, high-pressure air pipe; 62, high pressure (or middle pressure) liquid pipe, 78, mode converter, 79, off-premises station, 80, ventilating fan, 88, commutator
The practical implementation way
Fig. 1 is a kind of Contiuum type heat pump recuperation of heat air conditioner set constructor figure, and this equipment is made up of wind pushing box 1, air draft case 2, heat pump, power distribution control system four major parts.
Materials such as casing employing steel plate are processed, and are incubated with insulation materials such as polyurethane.Casing is provided with inspection door, is convenient to personnel and gets into maintenance and maintenance in the case.Break off by dividing plate 7 between wind pushing box 1 and the air draft case 2, paste insulation material, prevent to scurry between new wind and the air draft wind and heat exchange.Wind pushing box 1, air draft case 2 can be made all-in-one-piece, are installed in required equipment 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, be placed on the equipment of difference in functionality in the several function section, make several small box, behind the scene, be assembled into an integral body again.For example: in the wind pushing box 1, make air intake hybrid filtering section to fresh wind port 3, return air inlet 4, filter 5, by that analogy, can make blower section, evaporimeter section, humidification air supply section.Air draft case 2 can be made air intake hybrid filtering section, condenser section, heat pump main frame 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 draft case 2 can add other functional section as required, like additional electrical bringing-up section, air sterillization section, muffler section, maintenance section etc.
Heat pump host machine part (compressor 17 equipment such as grade) can be placed in the casing, also can be placed on outside the casing, and equipment such as evaporimeter 8, condenser 16, cold-producing medium circulation pipe 9 are positioned at casing.The heat exchanger of forms such as evaporimeter 8, condenser 16 employing direct-expansion type structure coil pipes guarantees that cold-producing medium evaporates and condensation therein, and heat exchanger is made with copper pipe and aluminium fin.
The electric cabinet 18 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 be provided 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 to leak out.
When summer, equipment was worked, in wind pushing box 1, the new wind of outdoor high temperature high humidity and indoor return air were under the effect of pressure fan 6; Get in the case from fresh wind port 3 and return air inlet 4, be filtered device 5 dust removal and filtrations after the mixing, through pressure fan 6; Through evaporimeter 8; The cool-down dehumidification that is cooled, reach the humiture of setting after, deliver to air conditioning area from air outlet 12; In air draft case 2, outdoor new wind and indoor exhaust wind get in the case from air inlet 13, fresh wind port 14 under the effect of exhaust blower 19; Be filtered device 15 dust removal and filtrations after the mixing; Through condenser 16, be heated intensification, drain into outdoor through exhaust blower 19, exhaust outlet 20 again.At this moment, heat pump carries out kind of refrigeration cycle, and in wind pushing box 1, evaporimeter 8 evaporation heat absorption, air-supply be by cool-down dehumidification, and in air draft case 2, condenser 16 is cooled by indoor-outdoor air, and the cold in the indoor exhaust wind is recovered utilization.
When winter, equipment was worked, in wind pushing box 1, the new wind of outdoor low temperature and indoor return air were under the effect of pressure fan 6; Get in the case from fresh wind port 3 and return air inlet 4, be filtered device 5 dust removal and filtrations after the mixing, through pressure fan 6; Through evaporimeter 8, be heated intensification, if humidity is low; Also need humidifier 10 humidifications, reach the humiture of setting after, deliver to air conditioning area from air outlet 12 through water fender 11; In air draft case 2, outdoor new wind and indoor exhaust wind get in the case from air inlet 13, fresh wind port 14 under the effect of exhaust blower 19; Be filtered device 15 dust removal and filtrations after the mixing; Through condenser 16, the cooling that is cooled drains into outdoor through exhaust blower 19, exhaust outlet 20 again.At this moment, heat pump heats circulation, and system changes, and in wind pushing box 1, evaporimeter 8 has converted condenser to, and air-supply is heated intensification, and in air draft case 2, condenser 16 converts the evaporator evaporation heat absorption to, and the heat in the indoor exhaust wind is recovered utilization.
During the work of transition season equipment, heat pump is out of service, and return air inlet 4 is closed in the wind pushing box 1, and fresh wind port 3, air outlet 12 are opened, pressure fan 6 operations; Fresh wind port 14 is closed in the air draft case 2, and air inlet 13, bypass air port 21, exhaust outlet 20 are opened, exhaust blower 19 operations, and the air-conditioning unit carries out brand-new wind operation.Bypass air port 21 equally connects indoor exhaust wind with air inlet 13, and it can reduce the exhaust resistance that condenser 16 causes, reduces the power consumption of exhaust blower 19.
In equipment when operation,, the controller switching equipment of power distribution control system is that heat pump, pressure fan 6, exhaust blower 19, electronic air quantity are regulated the air port, automatic control system provides power supply.Heat pump is the varying capacity system; Compressor 17 is a variable conpacitance compressor, and pressure fan 6, exhaust blower 19 are the frequency control blower fan, and fresh wind port 3,14, return air inlet 4, air inlet 13 are that electronic air quantity is regulated the air port; Also can adopt manual, electric dual-purpose air quantity adjusting air port; Bypass air port 21 is of little use, and can be made as manual air port, also can be made as manual, electric dual-purpose air quantity adjusting air port.Automatic control equipment is according to the variation of indoor-outdoor air parameter; Control the capacity of compressor 17, regulate the refrigerating capacity or the heating capacity of heat pump automatically, the control pressure fan 6 and the rotating speed of exhaust blower 19, the aperture in each air port; Automatically regulate air quantity, guarantee the efficient and stable operation of air-conditioning unit.Equipment such as controller, display, sensor, actuator are arranged in the automatic control system; Usually adopt system controlled by computer (like the PLC controller); Have functions such as autonomous setup parameter, fault detect, automatic warning; Can pass through the touch-screen field control, also can pass through computer keyboard, mouse long control, and realize network control through LAN, internet.
In the winter time, less when lower, the indoor new wind demand of outside air temperature, when not having indoor exhaust wind, the heat pump inefficiency; Even can't start, can in wind pushing box 1, establish electric heater, directly heat new wind; And do not start heat pump, and perhaps in air draft case 2, establish electric heater, heat new wind; Restart heat pump, electric heater can be used for defrosting.
Shown in Figure 1, wind pushing box 1 be positioned at air draft case 2 below, also can wind pushing box 1 be placed on air draft case 2 above.During summer operation, evaporimeter 8 can produce a large amount of cryogenic condensation water, for energy-conservation, can be sprayed onto this part cryogenic condensation water in the air draft case 2 through the way of flow by gravity or water pump pressurization, is used for cooling, air discharging or condenser 16.Below evaporimeter 8 and condenser 16, the condensed water water-collecting tray is housed, collects condensed water, and be discharged to outside the casing.Wind pushing box 1, air draft case 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, have return air inlet 4 in the wind pushing box 1, can process chamber in return air, this unit is applicable to all-air conditioning system, air conditioning system with variable, like megastore, office building.When not having return air inlet 4, this equipment is the whole fresh wind air-condition unit, blows to be brand-new wind, and sanitation and hygiene are applicable to the higher hotel of air sanitary standard, hospital.
Fig. 2 is a kind of split type heat pump recuperation of heat air conditioner set constructor figure, and wind pushing box 1 is what to separate with air draft case 2, when equipment dispatches from the factory; The cold-producing medium circulation pipe 9 that evaporimeter 8 or condenser 16 are connected with the heat pump main frame is disconnection and sealing, and all kinds of circuits that are connected with electric cabinet 18 also break off, during on-the-spot the installation; Cold-producing medium circulation pipe 9 connects through snap joint; All kinds of circuits insert electric cabinets 18, though pipeline and circuit have increased, but still can guarantee that unit normally moves.Two casings can be placed on different positions according to user's needs, arrange more flexibly, for example can be placed on air draft case 2 on the roof, save floor space, reduce the unit Effects of Noise.An air-supply bypass air port 22 can be increased on the wind pushing box 1, fan resistance can be reduced.
Fig. 3 is the heat pump figure of above-mentioned heat pump recuperation of heat air-conditioning unit, and what carried out is kind of refrigeration cycle.The cold-producing medium cyclic process is such: compressor 17 → oil eliminator 24 → water cooler 25 → four-way change-over valve 26 → condenser 16 → four-way change-over valve 27 → reservoir 28 → device for drying and filtering 29 → liquid-sighting glass 30 → expansion device 31 → four-way change-over valve 27 → evaporimeter 8 → four-way change-over valve 26 → gas-liquid separator 32 → compressor 17.The high pressure-temperature gaseous refrigerant of discharging from compressor 17 oil eliminator 24 with lubricating oil separation, through oil return capillary 23, lubricating oil is back to compressor 17, also can pass through alternate manner backflow lubricating oil.In summer, running water gets into water cooler 25, absorbs the heat of high temperature refrigerant, becomes hot water, can the domestic hot-water be provided for the client, has also saved fuel cost.Because the heat of cold-producing medium is absorbed by running water, and the resh air requirement that is used for condensating refrigerant just can reduce, exhaust blower 19 power consumption reduce simultaneously.When the client does not need the domestic hot-water, can cancel or turn off water cooler 25, the heat of cold-producing medium is drained by indoor exhaust wind and outdoor new wind.Water cooler 25 can adopt 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 it is near more from compressor 17 exhaust outlets, and the recuperation of heat effect is good more.Water cooler 25 is connected on the refrigerant tubing among Fig. 3, because cold-producing medium is uncontrollable, the water temperature in the water cooler 25 also is difficult to control, and it preferably uses as the make-up water preheater of hot-water heating system in the building.Expansion device 31 adopts electric expansion valve usually, regulates refrigerant flow more quick and precisely, also can adopt other expansion device, like capillary, is applicable to mini-system.Compressor 17 adopts variable conpacitance compressor, as: frequency conversion rotator type, vortex, screw compressor.When system's refrigerating capacity, when heating capacity changes, compressor 17 is varying capacity output in good time also, realizes energy-saving run.When multiple compressors 17 parallel runnings are arranged in the heat pump; Compressor 17 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 purpose of energy saving.In addition; In the heat pump except oil return capillary 23, oil eliminator 24, four-way change-over valve 26,27, reservoir 28, device for drying and filtering 29, liquid-sighting glass 30, gas-liquid separator 32 these auxiliary equipment; Also be provided with other auxiliary equipment, as: 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.
Heat pump heats circulation in the winter time; After four-way change-over valve 26,27 turns to; Evaporimeter 8 becomes condenser; And condenser 16 has become evaporimeter, and the cold-producing medium cyclic process is such: compressor 17 → oil eliminator 24 → water cooler 25 → four-way change-over valve 26 → evaporimeter 8 → four-way change-over valve 27 → reservoir 28 → device for drying and filtering 29 → liquid-sighting glass 30 → expansion device 31 → four-way change-over valve 27 → condenser 16 → four-way change-over valve 26 → gas-liquid separator 32 → compressor 17.In the winter time, water cooler 25 quits work, and does not produce hot water, and cold-producing medium dispels the heat in evaporimeter 8, is used for the outer new wind of heating clamber, and is heat absorption in condenser 16, absorbs the heat of indoor exhaust wind and outdoor new wind, has recycled the heat energy of indoor exhaust wind.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 17, the exhaust air rate of outdoor resh air requirement and exhaust blower 19 in the increasing exhaust case 2.In the winter time, water cooler 25 is adapted at south and uses, and in the north, outdoor temperature is low, and during water cooler 25 work, heat pump system efficiency is low.The equipment of above-described band water cooler 25 also can be described as hot-water type heat pump recuperation of heat air-conditioning unit.
In the heat pump shown in Figure 4, magnetic valve 33,34,35,36 has replaced the four-way change-over valve 27 in the above-mentioned heat pump.Open when magnetic valve 33,34, when magnetic valve 35,36 cut out, what system carried out was kind of refrigeration cycle; When magnetic valve 33,34 cuts out, when magnetic valve 35,36 was opened, what system carried out was to heat circulation.When low, the indoor exhaust wind amount of outdoor temperature in winter hour; Heat pump heats circulation, and condenser 16 is as the easy frosting of evaporimeter, for defrosting; Water cooler 25 stops to export hot water; But import hot water to water cooler 25 by external heat source (boiler, electric heating etc.), water cooler 25 has become water heater, for the cold-producing medium evaporation provides heat.During defrosting, open the air inlet 13 of air draft case 2, close fresh wind port 14, open electric control valve 37, close electric control valve 38, utilize the indoor exhaust wind defrosting, do not influence the normal operation of air-conditioning system this moment.
In the heat pump shown in Figure 5, check valve 39,40,41,42 has replaced four-way change-over valve 27 and the magnetic valve 33,34,35,36 in the above-mentioned heat pump.When system carried out kind of refrigeration cycle, check valve 39,40 was opened, and check valve 41,42 is closed; System heats circulation time, and check valve 39,40 is closed, and check valve 41,42 is opened.During defrosting,, open the air inlet 13 of air draft case 2, close fresh wind port 14, open electric control valve 37, close electric control valve 38, utilize the indoor exhaust wind defrosting to water cooler 25 input hot water.
Fig. 6 is another kind of Contiuum type heat pump recuperation of heat air conditioner set constructor figure; It and above-mentioned air-conditioning unit difference are in wind pushing box 1, to have increased reheater 43, after air is evaporated device 8 cooling coolings, again by reheater 43 heating; Can improve wind pushing temperature; Reduce supply air temperature difference, improve comfort of air conditioner, be applicable to that precision of air conditioning is high, the air-conditioning occasion of high humidity.This equipment also can be made split type heat pump recuperation of heat air-conditioning unit shown in Figure 2.
Fig. 7 is the heat pump figure of equipment shown in Figure 6; Reheater 43 is connected in parallel in the system with condenser 16; Electric control valve 44,45 is regulated the refrigerant flow that gets into reheater 43, condenser 16, when winter heating's circulation time according to the load variations situation; Electric control valve 44 cuts out, and reheater 43 is not worked.One of them changes electric control valve 44,45 magnetic valve into and also can distribute refrigerant flow.The version of reheater 43 is with evaporimeter 8 and condenser 16.The equipment of above-described band reheater 43 also can be described as heating type heat pump recuperation of heat air-conditioning unit again.
Fig. 8 is the another kind of heat pump figure of heating type heat pump recuperation of heat air-conditioning unit again, is carrying out kind of refrigeration cycle shown in the figure, and valve 46,49,50 is opened, and valve 47,48,51 is closed.What it was different with Fig. 7 is, reheater 43 can convert evaporimeter to, and when evaporimeter 8 can not be worked, valve-off 46,49,50, electric control valve 44 were done subsequent use with reheater 43.During refrigeration, valve-off 48 is opened valve 47,51, and reheater 43 converts evaporimeter to; When heating, valve-off 47 is opened valve 48,51, and reheater 43 converts condenser to.
In the heat pump shown in Figure 9, magnetic valve 33,34,35,36 has replaced the four-way change-over valve 27 of heat pump among Fig. 8.
In the heat pump shown in Figure 10, check valve 39,40,41,42 has replaced the four-way change-over valve 27 of heat pump among Fig. 8.
Figure 11 is another kind of Contiuum type heat pump recuperation of heat air conditioner set constructor figure, and it and above-mentioned air-conditioning unit difference are that two cover refrigeration systems are arranged.Wherein a cover is a heat pump, is used for cooling or adds hot-air; Another set of is single cooling system, is used for hot cooled air again, and heat pump also can be made by this system, both can be used for heat again, also can be used for cooling, subsequent use each other with the former, though increased equipment, reliability improves.This equipment also can be made split type heat pump recuperation of heat air-conditioning unit shown in Figure 2.The said equipment also can be described as two-shipper type heat pump recuperation of heat air-conditioning unit.
Figure 12 is a kind of heat pump figure of multiple heat pump recuperation of heat air-conditioning unit; Be kind of refrigeration cycle shown in the figure, 17 parallel runnings of two compressors are arranged, cold-producing medium can two-way flow in expansion device 52,53,54; Condenser 16 is contained in the air draft case 2, and evaporimeter 8 is contained in the wind pushing box 1.It has air draft case 2 and condenser 16, can connect two and several wind pushing box 1 and evaporimeters 8, and miscellaneous equipment, among Figure 12 only signal connect two wind pushing box 1 and evaporimeter 8, room air conditioner 55, a water cooler 25.Room air conditioner 55 is placed in the air-conditioned room, and the heat exchanger of forms such as its employing direct-expansion type structure coil pipe is made with copper pipe and aluminium fin; Its relies on the direct evaporation or the condensation of cold-producing medium, the air in circulation cooling or the heat rooms, and it and wind pushing box 1, air draft case 2 are different; Can be described as the optional equipment of system, or end-equipment, also have other to utilize the optional equipment of refrigerant cools or heating; As: the hand drier of toilet, the condensation heat of cold-producing medium capable of using; Utilize the sewage of building, the equipment of cooling refrigeration agent in summer, heating and cooling agent in winter; Utilize the equipment of the waste heat cold-producing medium of kitchen fume, washes; Utilize the equipment of solar water or the agent of hot blast heating and cooling.In the air conditioning area that wind pushing box 1 is served, when room air conditioner 55 this type optional equipments were abundant, wind pushing box 1 was not taken back air port 4, or closed return air inlet 4, only sent new wind.Water cooler 25 is connected in parallel in the system, and when water temperature reached design temperature, magnetic valve 57 cut out, and cuts off high temperature refrigerant, and magnetic valve 58 is opened, and high temperature refrigerant passes through, and magnetic valve 57,58 also can make electric control valve into, lets cold-producing medium in proportion through two valves.Air draft case 2 is placed on outdoor usually, is called outdoor unit (because of air draft case 2 can be placed on indoorly, also can be described as indoor units), and indoor exhaust wind is concentrated and delivered in the air draft case 2.For large-scale unit, can make two and several air draft casees 2 and condenser 16, connect several wind pushing box 1 and indoor units such as evaporimeter 8, optional equipment, water cooler 25, it is outdoor that water cooler 25 also can be placed on, and is called outdoor unit.In the said equipment, the operating mode of several evaporimeters 8 is identical, or all is refrigeration, or all heats, and therefore, can be described as with operating mode type heat pump.
Figure 13 is the heat pump figure of another kind of multiple heat pump recuperation of heat air-conditioning unit, and it has increased reheater 43 in wind pushing box 1, and is provided with water cooler 25, is connected in parallel in the system with condenser 16, relies on electric control valve 44 to regulate refrigerant flow.In this equipment; Evaporimeter 8 in two wind pushing box 1 can freeze simultaneously, heat simultaneously with room air conditioner 55; Two wind pushing box 1 also can one heat, another refrigeration, and wherein the reheater 43 in the wind pushing box 1 of refrigeration has converted evaporimeter to; Be used for refrigeration, do not work with the evaporimeter in the case 8.
Figure 14 is a kind of multiple heat pump recuperation of heat air conditioner set constructor figure.Air draft case 2 is placed on outdoor; Air inlet 13, bypass air port 21 connect indoor exhaust wind, and condenser 16 also is convertible into evaporimeter, absorb the cold and hot amount in indoor exhaust wind and the outdoor new wind; Compressor 17 is placed in the casing; Also can be placed on outside the casing,, can establish 2 parallel connections of many air draft casees and use for high-capacity air conditioning system; Air draft case 59 is different with said exhaust case 2, and it does not adorn compressor 17, fresh wind port 14, only handles indoor exhaust wind; Condenser 16 also is convertible into evaporimeter, reclaims the cold and hot amount in the indoor exhaust wind, and it is contained in indoor; Can make monoblock type with the wind pushing box of serving identical air conditioning area 1; Also can make split typely, be split type among Figure 14, arranges more flexible like this; In the wind pushing box 1, evaporimeter 8 also is convertible into condenser, and reheater 43 also is convertible into evaporimeter or condenser.Air draft case 2,59, wind pushing box 1, room air conditioner 55, water cooler 25 are connected on low pressure tracheae 60, high-pressure air pipe 61, high pressure (or middle pressure) the liquid pipe 62.Water cooler 25 is placed on outdoor, and it is the pressure vessel that has of an insulation, and refrigerant radiator is housed.This multiple heat pump recuperation of heat air-conditioning unit can be described as pattern of fever, water-cooling type again.Heat pump only illustrates to connect three indoor units (wind pushing box 1, air draft case 59, room air conditioner 55), two off-premises stations (air draft case 2, water cooler 25) among the figure, and it can linking number platform indoor and outdoor unit.When air conditioning area has enough big exhausting duct row when outdoor, can not establish air draft case 59, indoor exhaust wind all inserts in the air draft case 2.
Figure 15 is the heat pump figure of multiple heat pump recuperation of heat air-conditioning unit shown in Figure 14.Magnetic valve 65 is opened in the air draft case 2, and magnetic valve 66 cuts out, and condenser 16 heats; Magnetic valve 65 cuts out, and magnetic valve 66 is opened, condenser 16 refrigeration.Magnetic valve 68 is opened, and high temperature refrigerant is through water cooler 25, the feedwater heating, and when water temperature reaches design temperature, magnetic valve 68 cuts out.When condenser 16 needed defrosting, magnetic valve 68 cut out, and magnetic valve 69 is opened, and water cooler 25 converts water heater to, to it thermal source is provided by the outside.Magnetic valve 70 is opened in the air draft case 59, and magnetic valve 71 cuts out, and condenser 16 heats; Magnetic valve 71 is opened, and magnetic valve 70 cuts out, condenser 16 refrigeration.Reheater 43 is arranged in the wind pushing box 1, the flow of expansion device 77 control cold-producing mediums, through control magnetic valve 73,74, reheater 43 also can convert evaporimeter or condenser to and use, and is subsequent use each other with evaporimeter 8.If need not convert evaporimeter to; Only make reheater and use, can cancel magnetic valve 73,74, expansion device 77, device for drying and filtering 29, take the way of Fig. 7; If electric control valve 44, reheater 43 is connected with high-pressure air pipe 61, high pressure (or middle pressure) liquid pipe 62.Magnetic valve 73 is opened, and magnetic valve 74 cuts out, and reheater 43 heats; Magnetic valve 73 cuts out, and magnetic valve 74 is opened, reheater 43 refrigeration.Magnetic valve 76 is opened, and magnetic valve 75 cuts out, evaporimeter 8 refrigeration; Magnetic valve 76 cuts out, and magnetic valve 75 is opened, and evaporimeter 8 heats.The conversion of mode converter 78 control room air conditioners, 55 refrigeration and heating condition.
System shown in Figure 15 is three control systems; Evaporimeter 8, reheater 43, condenser 16, room air conditioner 55, water cooler 25 link to each other with low pressure tracheae 60, high-pressure air pipe 61, high pressure (or middle pressure) liquid pipe 62; There are three kinds of operating modes in this system: simultaneously the refrigeration, simultaneously heat or a part of casing the refrigeration in, other casing is heating.Suppose that this system heats circulation in the winter time, wind pushing box 1 send cold wind, and evaporimeter 8 refrigeration, reheater 43 heat; Room air conditioner 55 heats, and it and wind pushing box 1 be not at an air conditioning area; 59 heat absorptions of air draft case, condenser 16 refrigeration wherein; Water cooler 25 heats; Air draft case 2 absorbs heat, condenser 16 refrigeration wherein (it is refrigeration or heats, and need pass through the computing of automatic control system and judge the back execution).Therefore in above-mentioned cold-producing medium cyclic process; The cold that room air conditioner 55, water cooler 25, reheater 43 are absorbed has been passed to evaporimeter 8, condenser 16, and the heat that evaporimeter 8, condenser 16 are absorbed has been passed to room air conditioner 55, water cooler 25, reheater 43.
Therefore; Conversion through the switching of control magnetic valve, mode converter has realized the transformation of each unit operation operating mode, can satisfy the demand of freezing simultaneously and heat in different air-conditionings place; And the cold and hot amount in different air-conditionings place can be recycled mutually again; Recovery total improves, obvious energy conservation, and this multiple heat pump is also referred to as the recovery type heat heat pump.The bigger office building of depth for example, in the winter time, outskirt need send hot blast, and inner region need send cold wind, adopts this equipment to meet the demands.
Figure 16 is another kind of multiple heat pump recuperation of heat air conditioner set constructor figure, one group of wind pushing box 1, air draft case 2, heat pump band room air conditioner 55 more than three that is placed on outdoor (also can be placed on indoor), and it is the heat pump of three-pipe heating reclaiming type.
Figure 17 is another kind of multiple heat pump recuperation of heat air conditioner set constructor figure, and it has changed the outdoor unit air draft case 2 among Figure 14 into off-premises station 79.It is made up of condenser 16, ventilating fan 80, compressor 17, cold-producing medium circulation pipe 9, refrigeration system servicing unit, electric cabinet 18 etc.; Off-premises station 79 does not connect indoor exhaust wind; Outdoor air cools off or heats cold condenser 16 under the effect of ventilating fan 80, and the energy recovery of indoor exhaust wind is responsible for by indoor units air draft case 59; This unit is applicable to the indoor exhaust wind road to the outdoor inconvenience of drawing, or does not have the available occasion of indoor exhaust wind.
Figure 18 is a kind of heat pump figure of multiple heat pump recuperation of heat air-conditioning unit, includes evaporimeter 8 and reheater 43, room air conditioner 55, the water cooler 25 of condenser 16, the wind pushing box 1 of condenser 16, the indoor exhaust wind case 59 of outdoor air draft case 2.This system is heating circulation; Reheater 43, room air conditioner 55, water cooler 25 are heating; Condenser 16, evaporimeter 8 are in refrigeration, through circulation, evaporimeter 8 heats with the air conditioning area of being served; Be delivered to the air conditioning area that room air conditioner 55 is served, inner heat obtains recycling.This system is also referred to as the recovery type heat heat pump, and with above-mentioned three control system differences, it is two control, through a flue and a highly pressurised liquid pipe, a plurality of units is coupled together.
In sum, wind pushing box, air draft case, heat pump main frame, water cooler can be placed on indoor, also can be placed on outdoor; Wind pushing box can be taken back the air port, also can not take back the air port; The air draft case can be with fresh wind port, also can not be with fresh wind port; The water cooler series, parallel or is connected across between the cold-producing medium circulation pipe on high-pressure air pipe, and it also can convert water heater to, for heat pump provides thermal source, is used for the defrosting operation.
The above only is a preferable 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 (11)
1. heat pump recuperation of heat air-conditioning unit, it is made up of wind pushing box, air draft case, heat pump, power distribution control system, and wind pushing box has fresh wind port, return air inlet, air outlet, evaporimeter, pressure fan, filter, additional function section; The air draft case has air inlet, fresh wind port, exhaust outlet, condenser, exhaust blower, filter, additional function section; Heat pump is made up of compressor, condenser, expansion device, evaporimeter, servicing unit, cold-producing medium circulation pipe, cold-producing medium; Power distribution control system is made up of controller switching equipment and automatic control equipment, it is characterized in that, fresh wind port connects outdoor air, and return air inlet connects indoor return air, and air outlet connects room conditioning system air supply duct, and air inlet connects indoor exhaust wind, and exhaust outlet connects outdoor air; 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 through air outlet; Outdoor new wind and indoor exhaust wind are sucked the air draft case by exhaust blower, after the processing through filter, condenser, additional function section, are discharged to outdoor through exhaust outlet; Wind pushing box, air draft case are all-in-one-piece, or sectionally assembled, are airtight partition between wind pushing box and the air draft case; The evaporimeter of heat pump is contained in the wind pushing box, during refrigeration, is used to cool off air, when heating, converts condenser to, is used to add hot-air; The condenser of heat pump is contained in the air draft case, and during refrigeration, condensation heat is taken away by indoor exhaust wind and outdoor new wind, when heating, converts evaporimeter to, absorbs the heat in indoor exhaust wind and the outdoor new wind; The compressor of heat pump and servicing unit are contained in the air draft case, or are contained in the wind pushing box, also can be contained in outside wind pushing box, the air draft case; The electric cabinet of power distribution control system embeds in air draft case or the wind pushing box, or hangs over wind pushing box, air draft case outside, or is provided with wind pushing box, the split of air draft case.
2. heat pump recuperation of heat air-conditioning unit according to claim 1; It is characterized in that; The air draft case can be monoblock type, split type, multiple with being connected of wind pushing box, and corresponding, heat pump also can be monoblock type, split type, multiple; They can be placed on indoor, also can be placed on outdoor.
3. heat pump recuperation of heat air-conditioning 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 connection combinations are used; Perhaps the combination of many constant volume compressor parallels is used, and perhaps many varying capacities use with the combination of constant volume compressor parallel, and the air-conditioning unit can move by varying capacity.
4. heat pump recuperation of heat air-conditioning unit according to claim 1 is characterized in that, wind pushing box has takes back the air port, also has not take back the air port; The air draft case has the band fresh wind port, also has not to be with fresh wind port.
5. heat pump recuperation of heat air-conditioning unit according to claim 1 is characterized in that, fresh wind port, air inlet, return air inlet are that electronic air quantity is regulated the air port, or manual, electric dual-purpose air quantity adjusting air port.
6. heat pump recuperation of heat air-conditioning unit according to claim 1; It is characterized in that; Hot-water type heat pump recuperation of heat air-conditioning unit has the water cooler that hot water can be provided, and its series, parallel or be connected across on the refrigerant tubing adopts enclosed that pressure vessel or open type non-pressure vessel are arranged; It can convert water heater to and use, for heat pump provides thermal source.
7. heat pump recuperation of heat air-conditioning unit according to claim 1 is characterized in that, the device of refrigerant flow in heating type heat pump recuperation of heat air-conditioning unit band reheater and the control reheater again, and reheater also can convert evaporimeter to.
8. heat pump recuperation of heat air-conditioning unit according to claim 1 is characterized in that, two-shipper type heat pump recuperation of heat air-conditioning unit has two cover refrigeration systems, and wherein a cover is a heat pump, is used for the cooling or the heating of air; Another set of is single cold or heat pump, is used for the heat again or the cooling of air.
9. heat pump recuperation of heat air-conditioning unit according to claim 2; It is characterized in that; Multiple heat pump recuperation of heat air-conditioning unit includes wind pushing box, air draft case, heat pump, off-premises station, optional equipment, water cooler, power distribution control system; One or several air draft casees of heat pump connection or off-premises station connect two or several indoor units.
10. heat pump recuperation of heat air-conditioning unit according to claim 2 is characterized in that, multiple heat pump recuperation of heat air-conditioning unit adopts with operating mode type heat pump, or the recovery type heat heat pump.
11. heat pump recuperation of heat air-conditioning unit according to claim 2 is characterized in that, the outdoor unit of multiple heat pump recuperation of heat air-conditioning unit have family outer machine or air draft case; Off-premises station band condenser also can convert evaporimeter to, and it does not link to each other with indoor exhaust wind; Only carry out heat exchange with outdoor air; When outdoor unit was off-premises station, indoor air draft case can be with fresh wind port, when outdoor unit is the air draft case; Indoorly can establish, also can not establish the air draft case, the indoor exhaust wind case can be with, also can not be with fresh wind port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103455147A CN102767875A (en) | 2011-05-06 | 2011-11-04 | Air conditioning unit for hot recovery of heat pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120141549.4 | 2011-05-06 | ||
| CN201120141549 | 2011-05-06 | ||
| CN2011103455147A CN102767875A (en) | 2011-05-06 | 2011-11-04 | Air conditioning unit for hot recovery of heat pump |
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| Publication Number | Publication Date |
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| CN102767875A true CN102767875A (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103455147A Pending CN102767875A (en) | 2011-05-06 | 2011-11-04 | Air conditioning unit for hot recovery of heat pump |
| CN2013102930566A Pending CN103322656A (en) | 2011-05-06 | 2012-03-05 | Heat recycling air conditioner set |
| CN2013100568867A Withdrawn CN103075786A (en) | 2011-05-06 | 2012-03-05 | Heat-recovery air conditioning unit |
| CN201310346183.8A Active CN103398518B (en) | 2011-05-06 | 2012-03-05 | Reservoir |
| CN201210055160.7A Active CN102767876B9 (en) | 2011-05-06 | 2012-03-05 | Heat pump heat recovery air conditioning unit |
| CN2013101721277A Withdrawn CN103277950A (en) | 2011-05-06 | 2012-03-05 | Liquid reservoir |
| CN201210463902XA Withdrawn CN102914011A (en) | 2011-05-06 | 2012-03-05 | Heat recovery air-conditioning machine set |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102930566A Pending CN103322656A (en) | 2011-05-06 | 2012-03-05 | Heat recycling air conditioner set |
| CN2013100568867A Withdrawn CN103075786A (en) | 2011-05-06 | 2012-03-05 | Heat-recovery air conditioning unit |
| CN201310346183.8A Active CN103398518B (en) | 2011-05-06 | 2012-03-05 | Reservoir |
| CN201210055160.7A Active CN102767876B9 (en) | 2011-05-06 | 2012-03-05 | Heat pump heat recovery air conditioning unit |
| CN2013101721277A Withdrawn CN103277950A (en) | 2011-05-06 | 2012-03-05 | Liquid reservoir |
| CN201210463902XA Withdrawn CN102914011A (en) | 2011-05-06 | 2012-03-05 | Heat recovery air-conditioning machine set |
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| WO (1) | WO2012152199A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102767876B9 (en) | 2022-09-30 |
| CN103398518A (en) | 2013-11-20 |
| CN103398518B (en) | 2016-07-06 |
| CN103075786A (en) | 2013-05-01 |
| CN102914011A (en) | 2013-02-06 |
| CN102767876B (en) | 2014-11-12 |
| CN102767876A (en) | 2012-11-07 |
| WO2012152199A1 (en) | 2012-11-15 |
| CN103277950A (en) | 2013-09-04 |
| CN103322656A (en) | 2013-09-25 |
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Application publication date: 20121107 |