CN102878613B - Control method and the multi-online air-conditioning system of humiture in multi-online air-conditioning system - Google Patents

Control method and the multi-online air-conditioning system of humiture in multi-online air-conditioning system Download PDF

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Publication number
CN102878613B
CN102878613B CN201210350129.6A CN201210350129A CN102878613B CN 102878613 B CN102878613 B CN 102878613B CN 201210350129 A CN201210350129 A CN 201210350129A CN 102878613 B CN102878613 B CN 102878613B
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Prior art keywords
air
valve
heat exchanger
way change
cold
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CN201210350129.6A
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CN102878613A (en
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刘敏
张文强
邓玉平
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Priority to CN201210350129.6A priority Critical patent/CN102878613B/en
Priority to PCT/CN2012/082962 priority patent/WO2014043951A1/en
Publication of CN102878613A publication Critical patent/CN102878613A/en
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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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves

Abstract

This application discloses a kind of method and the multi-online air-conditioning system that control humiture in multi-online air-conditioning system.The method comprises: second strand of cold-producing medium of the 3rd end input of the first strand of cold-producing medium inputted by the switch unit of off-premises station and off-premises station confluxes, and after dividing cell compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively; Second strand of cold-producing medium dividing cell exported exports the first end of indoor set to by the first end of off-premises station, sequentially flow through the second condenser and second evaporimeter of indoor set, and the 3rd end of machine flows out indoor, the 3rd end through off-premises station is back to dividing cell; Sequentially flow through the first condenser, the first evaporimeter after being switched by first strand of cold-producing medium that dividing cell exports, and enter dividing cell.Application the application, can improve the Energy Efficiency Ratio that multi-online air-conditioning system runs.

Description

Control method and the multi-online air-conditioning system of humiture in multi-online air-conditioning system
Technical field
The present invention relates to multi-gang air-conditioner control technology, particularly relate to a kind of method and the multi-online air-conditioning system that control humiture in multi-online air-conditioning system.
Background technology
Along with improving constantly of people's living standard, by the system that installs an air-conditioner under inhabitation and office work environment, in order to promote the comfortableness of inhabitation and working environment, become the important selection that people improve comfortableness demand.Wherein, multi-gang air-conditioner technology due to have control free, energy-efficient, be convenient to the advantages such as installation and maintenance, be an important directions of Air-conditioning Development.
Multi-online air-conditioning system is mainly used in the humiture in control room, and generally comprise one or more off-premises station, one or more indoor set and line control machine, line control machine is connected with indoor set, and indoor set is connected with off-premises station again.Off-premises station is generally made up of outdoor heat exchanger, compressor and other refrigeration annex; Indoor set is made up of blower fan and heat exchanger etc., compared with multiple stage domestic air conditioning, the off-premises station of multi-online air-conditioning system shares, effectively can reduce equipment cost, and the centralized management of each indoor set can be realized, indoor set can be started separately run, also can multiple stage indoor set startup optimization simultaneously, make to control more flexible.
When multi-online air-conditioning system processes air, need the temperature to air, humidity and fresh air changes to carry out regulation and control, wherein, comparatively speaking, humid control difficulty is larger.In existing multi-online air-conditioning system, the cool-down dehumidification mode that the new wind of main employing and return air process separately and rotary wheel dehumidifying mode regulate indoor air comfort.Wherein, the method of cool-down dehumidification, on the one hand, multi-online air-conditioning system energy consumption will be caused high for excessive reduction wind pushing temperature and evaporating temperature reduces, and the reduction of evaporating temperature will cause multi-online air-conditioning system Energy Efficiency Ratio to reduce, on the other hand, for avoiding cold draft problem strongly to the uncomfortable property that user causes, need to adopt electrical heating wire heating to air-supply, and this will increase the energy consumption of multi-online air-conditioning system further.Adopt the system of rotary wheel dehumidifying can focus on air humidity under Wind Volume occasion, but the method regenerates to make hygroscopic material, electrical heating wire must be adopted to heat to return air, also adds additional the overall energy consumption of multi-online air-conditioning system, in addition, dehumidification system for runner is bulky, cannot with multi-online air-conditioning system blow end with the use of.Thus, based on the consideration of energy consumption, the Temperature and Humidity Control of application multi-online air-conditioning system scene is not suitable for adopting cool-down dehumidification means and dehumidification system for runner.
In order to reduce multi-online air-conditioning system power consumption, improve multi-online air-conditioning system refrigeration performance, prior art proposes one and improves one's methods, namely total-heat exchanger is increased in the indoor set part of multi-online air-conditioning system, by total-heat exchanger control room humidity, reclaim return air cold or heat, and realize fresh-air ventilation.The mass transfer of total-heat exchanger inside is because the steam partial pressure in the new wind in outdoor and indoor return air exists pressure reduction, water vapour carries out mass transfer by the moisture-inhibiting paper of full heat converter core between new wind and return air, the limited moisture-inhibiting ability of its internal paper limits the heat and mass ability of total-heat exchanger, cause dehumidify summer and winter humidification capability not enough.In addition, total-heat exchanger cannot bear indoor sensible heat load, and wherein, sensible heat is after heat adds or removes, and can cause the change of mass temperature, and not undergo phase transition.The control of sensible heat load need rely on the indoor set end of multi-online air-conditioning system, and indoor set end combines employing with total-heat exchanger, makes customer investment high and installation and maintenance are inconvenient.
From above-mentioned, existing cool-down dehumidification means and dehumidification system for runner, because Energy Efficiency Ratio is low and bulky, be not suitable for multi-online air-conditioning system; And multi-online air-conditioning system adopts indoor air-supply end and total-heat exchanger use in conjunction, to control indoor temperature and humidity respectively, but cause customer using cost high like this, and indoor equipment is compact not, installation and maintenance inconvenience, the operating Energy Efficiency Ratio of multi-online air-conditioning system is lower.
Summary of the invention
Embodiments of the invention provide a kind of method controlling humiture in multi-online air-conditioning system, improve the Energy Efficiency Ratio that multi-online air-conditioning system runs.
Embodiments of the invention also provide a kind of multi-online air-conditioning system, improve the Energy Efficiency Ratio that multi-online air-conditioning system runs.
For achieving the above object, a kind of multi-online air-conditioning system that the embodiment of the present invention provides, comprising: off-premises station and indoor set, wherein,
Off-premises station comprises: control unit, dividing cell, switch unit, First Heat Exchanger, first end, the second end, the 3rd end and the 4th end;
Indoor set comprises: the first air compartment unit, the second air compartment unit and the 3rd air compartment unit, wherein, be provided with the second heat exchanger, new wind passage, the first air-supply passage and the first air compartment in first air compartment unit, new wind passage and the first air-supply passage lay respectively at the first air compartment unit both sides; Be provided with the 3rd heat exchanger, the first return air channel, air exhaust passage, the second air compartment, first end and the 3rd end in second air compartment unit, the first return air channel and air exhaust passage lay respectively at the second air compartment unit both sides; In 3rd air compartment unit, be provided with the second end, the 4th end, the 4th heat exchanger, the second return air channel, the second air-supply passage and the 3rd air compartment, the second return air channel and the second air-supply passage lay respectively at the 3rd air compartment unit both sides;
Control unit, for when multi-online air-conditioning system is in cooling condition, controls First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter; When multi-online air-conditioning system is in heating condition, control First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser;
Dividing cell, second strand of cold-producing medium for the 3rd end input of first strand of cold-producing medium being inputted by switch unit and off-premises station confluxes, and after compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
The first end of off-premises station, second strand of cold-producing medium for dividing cell being exported exports the first end of indoor set to;
Switch unit, for when multi-online air-conditioning system is in cooling condition, First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end through off-premises station exports the 4th end of indoor set to, and through the 4th heat exchanger of indoor set, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, first strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger, the 4th end via indoor set flows out, and flow into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell;
3rd end of off-premises station, for second burst of back flow of refrigerant being flowed out by the 3rd end of machine indoor to dividing cell.
Preferably, when multi-online air-conditioning system is in cooling condition,
As the First Heat Exchanger of condenser, heat is entered air; Indoor return air enters the 3rd air compartment by the second return air channel and carries out exchange heat with as the refrigerant in the 4th heat exchanger of evaporimeter, and the heat of return air is taken away by low temperature refrigerant in evaporimeter, and air is lowered the temperature and then sent into by the second air-supply passage indoor;
Indoor set controls the second heat exchanger and the 3rd heat exchanger performs cyclic switching at the first cycle period and the second cycle period:
At the first cycle period, indoor set control the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the second heat exchanger, the 3rd heat exchanger successively, 3rd end of machine flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
Outdoor new wind enters the first air compartment by new wind passage, heat and mass exchange is carried out with the second heat exchanger, hot and humid new wind is by the second heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger, new wind is sent into indoor by the first air-supply passage after cool-down dehumidification;
Indoor return air enters the second air compartment by the first return air channel, heat and mass exchange is carried out with the 3rd heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs in the second cycle period, is entered air by the air of warming and humidifying via air exhaust passage;
At the second cycle period, control the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the 3rd heat exchanger, the second heat exchanger successively, 3rd end of machine flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
New wind enters the second air compartment by new wind passage, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid new wind is by the 3rd heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, new wind by after cool-down dehumidification through the second air compartment, finally send into indoor by the first air-supply passage;
Indoor return air enters the first air compartment by the first return air channel, heat and mass exchange is carried out with the second heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs in the first cycle period, is entered air by the air of warming and humidifying via air exhaust passage, second cycle period setting time then, triggering enters the first cycle period, so circulates;
When multiple on-line system is in heating condition,
As the First Heat Exchanger of evaporimeter, from Atmospheric Absorption heat; Indoor return air enters the 3rd air compartment by the second return air channel and carries out exchange heat with the 4th heat exchanger as condenser, and heat enters in return air by condenser, after air is heated, and then is sent into indoor by the second air-supply passage;
Indoor set controls the second heat exchanger and the 3rd heat exchanger performs cyclic switching at the 3rd cycle period and the 4th cycle period:
At the 3rd cycle period, control the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, by second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the 3rd heat exchanger, the second heat exchanger successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
New wind enters the second air compartment by new wind passage, heat and mass exchange is carried out with the 3rd heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs at the 4th cycle period, new wind, by after warming and humidifying, is sent into indoor via the first air-supply passage;
Indoor return air enters the first air compartment by the first return air channel, heat and mass exchange is carried out with the second heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger, is entered air by the air of reducing temperature and humidity via air exhaust passage;
At the 4th cycle period, control the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the second heat exchanger, the 3rd heat exchanger successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
Outdoor new wind enters the first air compartment by new wind passage, heat and mass exchange is carried out with the second heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs at the 3rd cycle period, new wind, by after warming and humidifying, is sent into indoor via the first air-supply passage;
Indoor return air enters the second air compartment by the first return air channel, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, is entered air by the air of reducing temperature and humidity via air exhaust passage, the 4th cycle period setting time then, triggering enters the 3rd cycle period, so circulates.
Preferably, described dividing cell comprises: compressor, check valve and gas-liquid separator, wherein,
The output of compressor is connected with the input of check valve, the output of check valve is connected with switch unit and first end respectively, the input of gas-liquid separator is connected with the 3rd end of the output of switch unit and off-premises station, and the output of gas-liquid separator is connected with the input of compressor.
Preferably, described switch unit is the first four-way change-over valve, the first end of the first four-way change-over valve is connected with the output of check valve, second end of the first four-way change-over valve is connected with the input of First Heat Exchanger, 3rd end of the first four-way change-over valve is connected with the input of gas-liquid separator, and the 4th end of the first four-way change-over valve is connected with the second end of off-premises station.
Preferably, the first end of described off-premises station is the first stop valve, and the second end of off-premises station is the second stop valve, and the 3rd end of off-premises station is the 3rd stop valve, and the 4th end of off-premises station is the 4th stop valve.
Preferably, described off-premises station comprises further: the first electric expansion valve that input is connected with the output of First Heat Exchanger, output is connected with the input of the 4th stop valve.
Preferably, the output of compressor is connected with the input of check valve, the output of check valve is connected with the first end of the first four-way change-over valve and the input of the first stop valve respectively, second end of the first four-way change-over valve is connected with the input of First Heat Exchanger, the output of First Heat Exchanger is connected with the input of the first electric expansion valve, the output of the first electric expansion valve is connected with the input of the 4th stop valve, the output of the 4th stop valve is connected with indoor set, 3rd end of the first four-way change-over valve is connected with the input of gas-liquid separator and the input of the 3rd stop valve respectively, the output of gas-liquid separator is connected with the input of compressor, 4th end of the first four-way change-over valve is connected with the input of the second stop valve, first stop valve, the output of the second stop valve and the 3rd stop valve is connected with indoor set respectively.
Preferably, described compressor is made up of one or more constant speed compressor, or is made up of variable speed compressor, or is combined by constant speed compressor and variable speed compressor and form.
Preferably, described first air compartment unit comprises further: the first air-valve, the second air-valve, tendencies valve, the 6th air-valve, the first airduct and the 3rd airduct, wherein,
Inwall one end of first air compartment offers new wind passage, the inwall other end offers the first air-supply passage, the first air-supply passage is led to and inwall one end of close new wind passage at new wind passage, be provided with the first air-valve and the second air-valve, lead to new wind passage and the inwall other end of close first air-supply passage at the first air-supply passage, be provided with tendencies valve and the 6th air-valve; In the first air compartment, be provided with the second heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the first airduct of the second air-valve being connected to the second air compartment unit and, tendencies valve is connected to the 3rd airduct of the second air compartment unit.
Preferably, described second air compartment unit comprises further: the 3rd air-valve, the 4th air-valve, the 7th air-valve, Bafeng valve, the second airduct, the 4th airduct, the second four-way change-over valve and the second electric expansion valve, wherein,
Second air compartment and the first air compartment inwall one end in the same way offers the first return air channel, the inwall other end offers air exhaust passage, air exhaust passage is led to and inwall one end of close first return air channel at the first return air channel, be provided with the 3rd air-valve and the 4th air-valve, lead to the first return air channel and the inwall other end of close air exhaust passage at air exhaust passage, be provided with the 7th air-valve and Bafeng valve; In the second air compartment, be provided with the second four-way change-over valve, the second electric expansion valve and the 3rd heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the second airduct of the 4th air-valve being connected to the first air compartment and, the 7th air-valve is connected to the 4th airduct of the first air compartment.
Preferably, described 3rd air compartment unit comprises further: the 3rd electric expansion valve,
Stuffy between the 3rd air compartment and the second air compartment;
3rd air compartment and the first air compartment inwall one end in the same way offers the second return air channel, and the inwall other end offers the second air-supply passage, in the 3rd air compartment, is provided with the 3rd electric expansion valve and the 4th heat exchanger;
The output of the first stop valve is connected with the second end of the second four-way change-over valve, the first end of the second four-way change-over valve is connected with one end of the second heat exchanger, the other end of the second heat exchanger is connected with one end of the second electric expansion valve, the other end of the second electric expansion valve is connected with one end of the 3rd heat exchanger, the other end of the 3rd heat exchanger is connected with the 3rd end of the second four-way change-over valve, 4th end of the second four-way change-over valve is connected with the output of the 3rd stop valve, the output of the second stop valve is connected with one end of the 4th heat exchanger, the other end of the 4th heat exchanger is connected with one end of the 3rd electric expansion valve, the other end of the 3rd electric expansion valve is connected with the output of the 4th stop valve.
Preferably, described First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger and the 4th heat exchanger are that aluminium foil copper tube with fins heat exchanger or aluminum fin decline channel heat exchanger, and the fin of the second heat exchanger and the 3rd heat exchanger scribbles hygroscopic material.
Preferably, cold-producing medium is discharged by compressor output end and is entered check valve, first strand of cold-producing medium and second strand of cold-producing medium two parts are divided into by check valve higher pressure refrigerant gas out, first strand of cold-producing medium enters the first end of the first four-way change-over valve, second strand of cold-producing medium enters the first stop valve, and exports indoor set to via the first stop valve;
When multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve standard-sized sheet of evaporimeter liquid supply rate is regulated, the refrigerant flow that the second electric expansion valve and the 3rd electronic expansion valve regulation flow through according to pre-set programs;
First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve, enter First Heat Exchanger, the first electric expansion valve, the 4th stop valve, the 3rd electric expansion valve, the 4th heat exchanger and the second stop valve successively, be back to the 4th end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the first cycle period, second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, enter compressor by compressor input;
At the second cycle period, second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input;
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve standard-sized sheet, and the first electric expansion valve and the second electric expansion valve play throttling action respectively;
First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve, enter the second stop valve, the 4th heat exchanger, the 3rd electric expansion valve, the 4th stop valve, the first electric expansion valve and First Heat Exchanger successively, be back to the second end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the 3rd cycle period, second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, finally enter compressor by compressor input;
At the 4th cycle period, second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
Preferably, in the first cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are opened, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are closed;
Outdoor new wind enters the first air compartment by new wind passage through the first air-valve, heat and mass exchange is carried out with the second heat exchanger, hot and humid new wind is by the second heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger, new wind by after cool-down dehumidification through the 6th air-valve, and send into indoor by the first air-supply passage;
Indoor return air is by the first return air channel, the second air compartment is entered through the 3rd air-valve, heat and mass exchange is carried out with the 3rd heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs in the second cycle period, is entered air by the air of warming and humidifying through Bafeng valve by air exhaust passage;
After the time pre-set, trigging control second four-way change-over valve commutates, and enters the second cycle period, and the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are closed, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are opened;
New wind enters the first airduct by new wind passage through the second air-valve, enter the second air compartment again, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid new wind is by the 3rd heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, new wind by after cool-down dehumidification through the 3rd airduct, then through tendencies valve, finally sent into indoor by the first air-supply passage;
Indoor return air enters the second airduct by the first return air channel through the 4th air-valve, enter the first air compartment again, heat and mass exchange is carried out with the second heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs in the first cycle period, by the air of warming and humidifying through the 4th airduct, air is entered by air exhaust passage again through the 7th air-valve, second cycle period setting time then, triggering enters the first cycle period, so circulates.
Preferably, in the 3rd cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are closed, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are opened;
New wind enters the first airduct by new wind passage through the second air-valve, enter the second air compartment again, heat and mass exchange is carried out with the 3rd heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs at the 4th cycle period, new wind by after warming and humidifying, through the 3rd airduct, again through tendencies valve, finally sent into indoor by the first air-supply passage;
Indoor return air enters the second airduct by the first return air channel through the 4th air-valve, enter the first air compartment again, heat and mass exchange is carried out with the second heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger, by the air of reducing temperature and humidity through the 4th airduct, then enter air through the 7th air-valve by air exhaust passage;
After the time pre-set, the second four-way change-over valve commutation, trigger and enter the 4th cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are opened, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are closed;
Outdoor new wind enters the first air compartment by new wind passage through the first air-valve, heat and mass exchange is carried out with the second heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger, and the new wind of drying absorbs the moisture of the hygroscopic material on the fin of the second heat exchanger at a upper cyclic absorption, new wind is by after warming and humidifying, through the 6th air-valve, and sent into indoor by the first air-supply passage;
Indoor return air enters the second air compartment by the first return air channel through the 3rd air-valve, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, is entered air by the air of reducing temperature and humidity through Bafeng valve by air exhaust passage, the 4th cycle period setting time then, triggering enters the 3rd cycle period, so circulates.
Preferably, described off-premises station comprises further:
Heat exchanger, the first end of heat exchanger is connected with the input of gas-liquid separator and the 3rd end of the first four-way change-over valve respectively, second end of heat exchanger is connected with the output of the first electric expansion valve, 3rd end of heat exchanger is connected with the input of the 4th stop valve, and the 3rd end of heat exchanger is connected with the input of the 3rd stop valve.
Preferably, described first air compartment unit comprises further: the first air-valve, the second air-valve, tendencies valve, the 6th air-valve, the first airduct and the 3rd airduct, wherein,
Inwall one end of first air compartment offers new wind passage, the inwall other end offers the first air-supply passage, the first air-supply passage is led to and inwall one end of close new wind passage at new wind passage, be provided with the first air-valve and the second air-valve, lead to new wind passage and the inwall other end of close first air-supply passage at the first air-supply passage, be provided with tendencies valve and the 6th air-valve; In the first air compartment, be provided with the second heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the first airduct of the first air-valve being connected to the second air compartment unit and, the 6th air-valve is connected to the 3rd airduct of the second air compartment unit;
Described second air compartment unit comprises further: the 3rd air-valve, the 4th air-valve, the 7th air-valve, Bafeng valve, the second airduct, the 4th airduct, the second four-way change-over valve and the second electric expansion valve, wherein,
Second air compartment and the first air compartment inwall one end in the same way offers the first return air channel, the inwall other end offers air exhaust passage, air exhaust passage is led to and inwall one end of close first return air channel at the first return air channel, be provided with the 3rd air-valve and the 4th air-valve, lead to the first return air channel and the inwall other end of close air exhaust passage at air exhaust passage, be provided with the 7th air-valve and Bafeng valve; In the second air compartment, be provided with the second four-way change-over valve, the second electric expansion valve and the 3rd heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the second airduct of the 3rd air-valve being connected to the first air compartment and, Bafeng valve is connected to the 4th airduct of the first air compartment.
Control a method for humiture in multi-online air-conditioning system, the method comprises:
Second strand of cold-producing medium of the 3rd end input of the first strand of cold-producing medium inputted by the switch unit of off-premises station and off-premises station confluxes, and after dividing cell compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
Second strand of cold-producing medium dividing cell exported exports the first end of indoor set to by the first end of off-premises station, sequentially flow through the second condenser and second evaporimeter of indoor set, and the 3rd end of machine flows out indoor, the 3rd end through off-premises station is back to dividing cell;
Sequentially flow through the first condenser, the first evaporimeter after being switched by first strand of cold-producing medium that dividing cell exports, and enter dividing cell.
Preferably, described first strand of cold-producing medium that dividing cell exports is switched after sequentially flow through the first condenser, the first evaporimeter, and enter dividing cell and comprise:
When multi-online air-conditioning system is in cooling condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first condenser, indoor set as the first evaporimeter;
First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end through off-premises station exports the 4th end of indoor set to, and through the 4th heat exchanger of indoor set, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first evaporimeter, indoor set as the first condenser;
First strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger, and the 4th end via indoor set flows out, and flows into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell.
Preferably, off-premises station comprises: compressor, check valve, the first four-way change-over valve, First Heat Exchanger, the first electric expansion valve, gas-liquid separator, the first stop valve, the second stop valve, the 3rd stop valve and the 4th stop valve;
Indoor set comprises: new wind passage, first return air channel, second return air channel, first air-supply passage, air exhaust passage, second air-supply passage, first air compartment, second air compartment, 3rd air compartment, first air-valve, second air-valve, 3rd air-valve, 4th air-valve, tendencies valve, 6th air-valve, 7th air-valve, Bafeng valve, first airduct, second airduct, 3rd airduct, 4th airduct, second four-way change-over valve, second heat exchanger, second electric expansion valve, 3rd heat exchanger, 3rd electric expansion valve and the 4th heat exchanger,
Cold-producing medium is discharged by compressor output end and is entered check valve, first strand of cold-producing medium and second strand of cold-producing medium two parts are divided into by check valve higher pressure refrigerant gas out, first strand of cold-producing medium enters the first end of the first four-way change-over valve in switch unit, second strand of cold-producing medium enters the first stop valve of off-premises station first end, and exports indoor set to via the first stop valve;
When multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve standard-sized sheet of evaporimeter liquid supply rate is regulated, the refrigerant flow that the second electric expansion valve and the 3rd electronic expansion valve regulation flow through according to pre-set programs;
First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve, enter First Heat Exchanger, the first electric expansion valve, the 4th stop valve, the 3rd electric expansion valve, the 4th heat exchanger and the second stop valve successively, be back to the 4th end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the first cycle period, the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, enter compressor by compressor input;
At the second cycle period, the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input;
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve standard-sized sheet, and the first electric expansion valve and the second electric expansion valve play throttling action respectively;
First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve, enter the second stop valve, the 4th heat exchanger, the 3rd electric expansion valve, the 4th stop valve, the first electric expansion valve and First Heat Exchanger successively, be back to the second end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the 3rd cycle period, the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, finally enter compressor by compressor input;
At the 4th cycle period, the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
As seen from the above technical solution, a kind of method and multi-online air-conditioning system controlling humiture in multi-online air-conditioning system that the embodiment of the present invention provides, second strand of cold-producing medium of the 3rd end input of the first strand of cold-producing medium inputted by the switch unit of off-premises station and off-premises station confluxes, after dividing cell compression, shunt, export first strand of cold-producing medium and second strand of cold-producing medium respectively; Second strand of cold-producing medium dividing cell exported exports the first end of indoor set to by the first end of off-premises station, sequentially flow through the second condenser and second evaporimeter of indoor set, and the 3rd end of machine flows out indoor, the 3rd end through off-premises station is back to dividing cell; Sequentially flow through the first condenser, the first evaporimeter after being switched by first strand of cold-producing medium that dividing cell exports, and enter dividing cell.Like this, indoor set part is by the switching of condenser and evaporimeter, and the independence that can realize temperature and humidity controls, compact conformation and device integration is high; And, by reclaiming the cold of return air and heat, such that the evaporating temperature of multi-online air-conditioning system is higher and condensation temperature is lower, thus the Energy Efficiency Ratio that multi-online air-conditioning system is run is high, improves the Energy Efficiency Ratio of multi-online air-conditioning system operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Apparently, the accompanying drawing in below describing is only some embodiments of the present invention, for those of ordinary skills, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is embodiment of the present invention multi-online air-conditioning system structural representation.
Fig. 2 is the structural representation of another embodiment of the present invention off-premises station.
Fig. 3 is the structural representation of another embodiment of the present invention indoor set.
Fig. 4 is the method flow schematic diagram that the embodiment of the present invention controls humiture in multi-online air-conditioning system.
Detailed description of the invention
Carry out clear, complete description below with reference to accompanying drawing to the technical scheme of various embodiments of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the present invention protects.
Existing method of being carried out Temperature and Humidity Control by cool-down dehumidification means and dehumidification system for runner, because Energy Efficiency Ratio is low and bulky, is not suitable for multi-online air-conditioning system; And multi-online air-conditioning system adopts indoor air-supply end and total-heat exchanger use in conjunction, to control the method for indoor temperature and humidity respectively, make again customer using cost high, and indoor equipment is compact not, installation and maintenance inconvenience, the operating Energy Efficiency Ratio of multi-online air-conditioning system is lower.
Along with country is to the pay attention to day by day of energy-saving and emission-reduction, user also more and more pays close attention to the Energy Efficiency Ratio index of reflection multi-online air-conditioning system combination property, namely under declared working condition and rated condition, the output quantity of multi-online air-conditioning system and the ratio of input power, Energy Efficiency Ratio is larger, shows that multi-online air-conditioning system is more energy-conservation.And the method for existing control auxiliary electrical heater, the opening and closing of auxiliary electrical heater are just controlled according to some temperature conditions, and the Energy Efficiency Ratio of auxiliary electrical heater is generally much smaller than the Energy Efficiency Ratio of compressor, do not consider the Energy Efficiency Ratio problem of the heating load that compressor can provide and system, the level that Energy Efficiency Ratio and air-conditioning can reach has larger gap, make auxiliary electrical heater longtime running, cause the waste of the energy, Energy Efficiency Ratio is lower.
In the embodiment of the present invention, consider cold or the heat of recycling return air in multi-online air-conditioning system, the multi-online air-conditioning system of a kind of independent temperature-humidity control and compact conformation is proposed, multi-online air-conditioning system is by reclaiming cold or the heat of return air, by fresh-air ventilation, cold recovery and temperature and humidity independence regulable control concentrate on a set of indoor set, thus meet user's high standard, personalized demand, make multi-online air-conditioning system that the cold of return air or heat can be utilized as the energy, guarantee high energy efficiency ratio runs, thus meet Summer Indoor fresh-air ventilation, return air cold recovery, the function of cooling and dehumidifying, and meet the function of indoor fresh air ventilating in winter, return air heat recovery, heating and humidification, thus utilize air return energy, while guarantee multi-online air-conditioning system Effec-tive Function, realize indoor fresh air ventilating and temperature and humidity-independent control.
Fig. 1 is embodiment of the present invention multi-online air-conditioning system structural representation.See Fig. 1, this multi-online air-conditioning system adopts independent temperature-humidity control, and comprising: off-premises station 01 and indoor set 02, wherein, off-premises station 01 is one or more, and indoor set 02 is one or more,
Off-premises station 01 comprises: control unit, dividing cell, switch unit, First Heat Exchanger, first end, the second end, the 3rd end and the 4th end, wherein,
Control unit, for when multi-online air-conditioning system is in cooling condition, controls First Heat Exchanger as the 4th heat exchanger 37 in condenser, indoor set 02 as evaporimeter; When multi-online air-conditioning system is in heating condition, control First Heat Exchanger 4 as evaporimeter, the 4th heat exchanger 37 as condenser;
Dividing cell, second strand of cold-producing medium for first strand of cold-producing medium being inputted by switch unit and the input of the 3rd end confluxes, and after compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
First end, second strand of cold-producing medium for dividing cell being exported exports the first end of outside indoor set to;
Switch unit, for when multi-online air-conditioning system is in cooling condition, First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end of indoor set 02 is exported to through the 4th end, and through the 4th heat exchanger 37 of indoor set 02, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, first strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger 37, the 4th end via indoor set flows out, and flow into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell;
3rd end, for second burst of back flow of refrigerant being flowed out by the 3rd end of machine 02 indoor to dividing cell;
Indoor set 02 comprises: the first air compartment unit, the second air compartment unit and the 3rd air compartment unit, wherein,
Be provided with the second heat exchanger 33, new wind passage 11, first air-supply passage 14 and the first air compartment 17 in first air compartment unit, new wind passage 11 and the first air-supply passage 14 lay respectively at the first air compartment unit both sides; Be provided with the 3rd heat exchanger 35, first return air channel 12, air exhaust passage 15, second air compartment 18, first end and the 3rd end in second air compartment unit, the first return air channel 12 and air exhaust passage 15 lay respectively at the second air compartment unit both sides;
When multiple on-line system is in cooling condition, indoor set 02 controls the second heat exchanger 33 and the 3rd heat exchanger 35 performs cyclic switching at the first cycle period and the second cycle period;
At the first cycle period, indoor set 02 control the second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the second heat exchanger 33, the 3rd heat exchanger 35 successively, 3rd end of machine 02 flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
Outdoor new wind enters the first air compartment 17 by new wind passage 11, heat and mass exchange is carried out with the second heat exchanger 33, hot and humid new wind is by the second heat exchanger 33 cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger 33, new wind is sent into indoor by after cool-down dehumidification by the first air-supply passage 14;
Indoor return air enters the second air compartment 18 by the first return air channel 12, heat and mass exchange is carried out with the 3rd heat exchanger 35, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger 35, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger 35 absorbs in the second cycle period, moisture in this part hygroscopic material is sucked away, thus realizes regeneration, entered air by the air of warming and humidifying via air exhaust passage 15;
At the second cycle period, control the second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the 3rd heat exchanger 35, second heat exchanger 33 successively, 3rd end of machine flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
New wind enters the second air compartment 18 by new wind passage 11, heat and mass exchange is carried out with the 3rd heat exchanger 35, hot and humid new wind is by the 3rd heat exchanger 35 cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger 35, new wind by after cool-down dehumidification through the second air compartment 18, finally send into indoor by the first air-supply passage 14;
Indoor return air enters the first air compartment 17 by the first return air channel 12, heat and mass exchange is carried out with the second heat exchanger 33, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger 33, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger 33 absorbs in the first cycle period, this part hygroscopic material is regenerated, air is entered via air exhaust passage 15 by the air of warming and humidifying, second cycle period setting time then, triggering enters the first cycle period, circulation like this, thus the independence realizing cooling and dehumidifying controls,
When multiple on-line system is in heating condition, indoor set 02 controls the second heat exchanger 33 and the 3rd heat exchanger 35 performs cyclic switching at the 3rd cycle period and the 4th cycle period;
At the 3rd cycle period, control the second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser, by second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the 3rd heat exchanger 35, second heat exchanger 33 successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
New wind enters the second air compartment 18 by new wind passage 11, heat and mass exchange is carried out with the 3rd heat exchanger 35, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger 35, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the 3rd heat exchanger 35 absorbs at the 4th cycle period, make this part hygroscopic material dry and regenerated, new wind, by after warming and humidifying, sends into indoor via the first air-supply passage 14;
Indoor return air enters the first air compartment 17 by the first return air channel 12, heat and mass exchange is carried out with the second heat exchanger 33, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger 33, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger 33, is entered air by the air of reducing temperature and humidity via air exhaust passage 15;
At the 4th cycle period, control the second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the second heat exchanger 33, the 3rd heat exchanger 35 successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
Outdoor new wind enters the first air compartment 17 by new wind passage 11, heat and mass exchange is carried out with the second heat exchanger 33, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger 33, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the second heat exchanger 33 absorbs at the 3rd cycle period, this part hygroscopic material is regenerated, new wind, by after warming and humidifying, sends into indoor via the first air-supply passage 14;
Indoor return air enters the second air compartment 18 by the first return air channel 12, heat and mass exchange is carried out with the 3rd heat exchanger 35, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger 35, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger 35, air is entered via air exhaust passage 15 by the air of reducing temperature and humidity, the 4th cycle period setting time then, triggering enters the 3rd cycle period, circulation like this, thus the independence realizing humidification and heating controls;
In 3rd air compartment unit, be provided with the second end, the 4th end, the 4th heat exchanger 37, second return air channel 13, second air-supply passage 16 and the 3rd air compartment 19, second return air channel 13 and the second air-supply passage 16 lays respectively at the 3rd air compartment unit both sides,
When multi-online air-conditioning system is in cooling condition, first burst of flow of refrigerant that off-premises station the 4th end flows out is entered the 4th end of indoor set, via the second end of the 4th heat exchanger 37 and indoor set, flow into the second end of off-premises station, then be back to dividing cell;
As the First Heat Exchanger 4 of condenser, heat is entered air; As the 4th heat exchanger 37 of evaporimeter, indoor return air enters the 3rd air compartment 19 by the second return air channel 13 and carries out exchange heat with the refrigerant in the 4th heat exchanger 37, the heat of return air is taken away by low temperature refrigerant in evaporimeter (the 4th heat exchanger 37), and air is lowered the temperature and then sent into indoor by the second air-supply passage 16;
When multiple on-line system is in heating condition, First Heat Exchanger 4 as evaporimeter, the 4th heat exchanger 37 as condenser, first strand of cold-producing medium flows into the second end of indoor set via the second end of off-premises station, and flow through the 4th heat exchanger 37, the 4th end through indoor set flows out, flow into the 4th end of off-premises station, flow through First Heat Exchanger 4, be back to dividing cell again;
As the First Heat Exchanger 4 of evaporimeter, from Atmospheric Absorption heat; As the 4th heat exchanger 37 of condenser, indoor return air enters the 3rd air compartment 19 by the second return air channel 13 and carries out exchange heat with the 4th heat exchanger 37, heat enters in return air by condenser (the 4th heat exchanger 37), after air is heated, and then sends into indoor by the second air-supply passage 16.
Wherein, dividing cell comprises: compressor 1, check valve 2 and gas-liquid separator 6, the output of compressor 1 is connected with the input of check valve 2, the output of check valve 2 is connected with switch unit and first end respectively, the input of gas-liquid separator 6 is connected with the output of switch unit and the 3rd end, and the output of gas-liquid separator 6 is connected with the input of compressor 1.
Switch unit is the first four-way change-over valve 3, the first end of the first four-way change-over valve 3 is connected with the output of check valve 2, second end of the first four-way change-over valve 3 is connected with the input of First Heat Exchanger 4,3rd end of the first four-way change-over valve 3 is connected with the input of gas-liquid separator 6, and the 4th end of the first four-way change-over valve 3 is connected with the second end of off-premises station.
Preferably, the first end of off-premises station is the first stop valve 7, and the second end of off-premises station is the second stop valve 8, and the 3rd end of off-premises station is the 3rd stop valve 9, and the 4th end of off-premises station is the 4th stop valve 10.
Preferably, this off-premises station can further include: the first electric expansion valve 5 that input is connected with the output of First Heat Exchanger 4, output is connected with the input of the 4th stop valve 10.
Like this, specifically, off-premises station 01 comprises: compressor 1, check valve 2, first four-way change-over valve 3, First Heat Exchanger 4, first electric expansion valve 5, gas-liquid separator 6, first stop valve 7, second stop valve 8, the 3rd stop valve 9 and the 4th stop valve 10, wherein
The output of compressor 1 is connected with the input of check valve 2, the output of check valve 2 is connected with the first end of the first four-way change-over valve 3 and the input of the first stop valve 7 respectively, second end of the first four-way change-over valve 3 is connected with the input of First Heat Exchanger 4, the output of First Heat Exchanger 4 is connected with the input of the first electric expansion valve 5, the output of the first electric expansion valve 5 is connected with the input of the 4th stop valve 10, the output of the 4th stop valve 10 is connected with indoor set 02, 3rd end of the first four-way change-over valve 3 is connected with the input of gas-liquid separator 6 and the input of the 3rd stop valve 9 respectively, the output of gas-liquid separator 6 is connected with the input of compressor 1, 4th end of the first four-way change-over valve 3 is connected with the input of the second stop valve 8, first stop valve 7, the output of the second stop valve 8 and the 3rd stop valve 9 is connected with indoor set 02 respectively.
In the embodiment of the present invention, compressor 1 can be made up of one or more constant speed compressor, also can be made up of variable speed compressor, can also be combined form by constant speed compressor and variable speed compressor.
In the embodiment of the present invention, the first air compartment unit can further include: the first air-valve 20, second air-valve 21, tendencies valve 24, the 6th air-valve 25, first airduct 28 and the 3rd airduct 30, wherein,
Inwall one end of first air compartment 17 offers new wind passage 11, the inwall other end offers the first air-supply passage 14, the first air-supply passage 14 is led to and inwall one end of close new wind passage 11 at new wind passage 11, be provided with the first air-valve 20 and the second air-valve 21, lead to new wind passage 11 and the inwall other end of close first air-supply passage 14 at the first air-supply passage 14, be provided with tendencies valve 24 and the 6th air-valve 25; In the first air compartment 17, be provided with the second heat exchanger 33;
In the junction of the first air compartment 17 and the second air compartment 18, be provided with the first airduct 28 of the second air-valve 21 being connected to the second air compartment unit and, tendencies valve 24 is connected to the 3rd airduct 30 of the second air compartment unit.
Second air compartment unit comprises further: the 3rd air-valve 22, the 4th air-valve 23, the 7th air-valve 26, Bafeng valve 27, second airduct 29, the 4th airduct 31, second four-way change-over valve 32 and the second electric expansion valve 34, wherein,
Second air compartment 18 and the first air compartment 17 inwall one end in the same way offer the first return air channel 12, the inwall other end offers air exhaust passage 15, air exhaust passage 15 is led to and inwall one end of close first return air channel 12 at the first return air channel 12, be provided with the 3rd air-valve 22 and the 4th air-valve 23, lead to the first return air channel 12 and the inwall other end of close air exhaust passage 15 at air exhaust passage 15, be provided with the 7th air-valve 26 and Bafeng valve 27; In the second air compartment 18, be provided with the second four-way change-over valve 32, second electric expansion valve 34 and the 3rd heat exchanger 35;
In the junction of the first air compartment 17 and the second air compartment 18, be provided with the second airduct 29 of the 4th air-valve 23 being connected to the first air compartment 17 and, the 7th air-valve 26 is connected to the 4th airduct 31 of the first air compartment 17.
3rd air compartment unit comprises further: the 3rd electric expansion valve 36,
Stuffy between the 3rd air compartment 19 and the second air compartment 18;
3rd air compartment 19 and the first air compartment 17 inwall one end in the same way offer the second return air channel 13, and the inwall other end offers the second air-supply passage 16, in the 3rd air compartment 19, are provided with the 3rd electric expansion valve 36 and the 4th heat exchanger 37;
The output of the first stop valve 7 is connected with the second end of the second four-way change-over valve 32, the first end of the second four-way change-over valve 32 is connected with one end of the second heat exchanger 33, the other end of the second heat exchanger 33 is connected with one end of the second electric expansion valve 34, the other end of the second electric expansion valve 34 is connected with one end of the 3rd heat exchanger 35, the other end of the 3rd heat exchanger 35 is connected with the 3rd end of the second four-way change-over valve 32, 4th end of the second four-way change-over valve 32 is connected with the output of the 3rd stop valve 9, the output of the second stop valve 8 is connected with one end of the 4th heat exchanger 37, the other end of the 4th heat exchanger 37 is connected with one end of the 3rd electric expansion valve 36, the other end of the 3rd electric expansion valve 36 is connected with the output of the 4th stop valve 10.
Preferably, in the embodiment of the present invention, First Heat Exchanger 4, second heat exchanger 33, the 3rd heat exchanger 35 and the 4th heat exchanger 37 to decline channel heat exchanger for aluminium foil copper tube with fins heat exchanger or aluminum fin, and the fin of the second heat exchanger 33 and the 3rd heat exchanger 35 scribbles hygroscopic material.
In the embodiment of the present invention, the flowing flow process of cold-producing medium in multi-online air-conditioning system is:
Cold-producing medium is discharged by compressor 1 exhaust outlet (output) and is entered check valve 2, two parts are divided into by check valve 2 higher pressure refrigerant gas out, part of refrigerant (first strand of cold-producing medium) enters the first end of the first four-way change-over valve 3, another part cold-producing medium (second strand of cold-producing medium) enters the first stop valve 7, and exports indoor set 02 to via the first stop valve 7;
When multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve 3 and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve 5 standard-sized sheet of evaporimeter liquid supply rate is regulated according to pre-set programs, second electric expansion valve 34 and the 3rd electric expansion valve 36 play throttling action respectively, regulate the refrigerant flow flowed through;
First Heat Exchanger 4 as condenser, the 4th heat exchanger 37 as evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve 3, enter First Heat Exchanger 4, first electric expansion valve 5, the 4th stop valve 10, the 3rd electric expansion valve 36, the 4th heat exchanger 37 and the second stop valve 8 successively, be back to the 4th end of the first four-way change-over valve 3 again, the 3rd end via the first four-way change-over valve 3 enters gas-liquid separator 6, finally enters compressor 1 by compressor air suction mouth (input);
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve 32 by the outlet (output) of the first stop valve 7,
At the first cycle period, second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser, then the first end of the second four-way change-over valve 32 with the 4th end UNICOM and the second end be communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve 32, via the 3rd end of the second four-way change-over valve 32, enter the 3rd heat exchanger 35 successively, second electric expansion valve 34, second heat exchanger 33, the first end of the second four-way change-over valve 32, 4th end and the 3rd stop valve 9, finally get back to gas-liquid separator 6, compressor 1 is entered by compressor air suction mouth (input),
At the second cycle period, second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, then the first end of the second four-way change-over valve 32 is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve 32, enter the second heat exchanger 33, second electric expansion valve 34, the 3rd end of the 3rd heat exchanger 35, second four-way change-over valve 32, the 4th end and the 3rd stop valve 9 successively, return gas-liquid separator 6, finally enter compressor 1 by compressor air suction mouth (input).
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve 3 is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve 36 standard-sized sheet, and the first electric expansion valve 5 and the second electric expansion valve 34 play throttling action respectively;
First Heat Exchanger 4 as evaporimeter, the 4th heat exchanger 37 as condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve 3, enter the second stop valve 8, the 4th heat exchanger 37, the 3rd electric expansion valve 36, the 4th stop valve 10, first electric expansion valve 5 and First Heat Exchanger 4 successively, be back to the second end of the first four-way change-over valve 3 again, the 3rd end via the first four-way change-over valve 3 enters gas-liquid separator 6, finally enters compressor 1 by compressor air suction mouth (input);
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve 32 by the outlet (output) of the first stop valve 7,
At the 3rd cycle period, second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser, then the first end of the second four-way change-over valve 32 with the 4th end UNICOM and the second end be communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve 32, via the 3rd end of the second four-way change-over valve 32, enter the 3rd heat exchanger 35 successively, second electric expansion valve 34, second heat exchanger 33, the first end of the second four-way change-over valve 32, 4th end and the 3rd stop valve 9, finally get back to gas-liquid separator 6, finally enter compressor 1 by compressor air suction mouth (input),
At the 4th cycle period, second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, then the first end of the second four-way change-over valve 32 is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve 32, enter the second heat exchanger 33, second electric expansion valve 34, the 3rd end of the 3rd heat exchanger 35, second four-way change-over valve 32, the 4th end and the 3rd stop valve 9 successively, return gas-liquid separator 6, finally enter compressor 1 by compressor air suction mouth (input).
Respectively Summer Indoor cooling and the independence of dehumidifying (refrigeration) are controlled again below and winter heating indoor and the independence of humidification (heating) control to be described in detail.
Summer Indoor cooling is controlled with the independence of dehumidifying:
Control for indoor temperature, now multi-online air-conditioning system is in cooling condition, and heat, as condenser, is entered air by First Heat Exchanger 4; 4th heat exchanger 37 is as evaporimeter, indoor return air enters the 3rd air compartment 19 by the second return air channel 13 and carries out exchange heat with the refrigerant in the 4th heat exchanger 37, the heat of return air is taken away by low temperature refrigerant in evaporimeter (the 4th heat exchanger 37), and air is lowered the temperature and then sent into indoor by the second air-supply passage 16;
Under this cooling condition, most of indoor sensible heat load born by the 4th heat exchanger 37, plays the function of cooling;
For indoor humidity control, initial time (the first cycle period), the second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser; Now, first air-valve 20, the 3rd air-valve 22, the 6th air-valve 25 and Bafeng valve 27 are opened, second air-valve 21, the 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are closed, outdoor new wind enters the first air compartment 17 by new wind passage 11 through the first air-valve 20, heat and mass exchange is carried out with the second heat exchanger 33, hot and humid new wind is by the second heat exchanger 33 cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger 33, new wind by after cool-down dehumidification through the 6th air-valve 25, and send into indoor by the first air-supply passage 14;
Indoor return air is by the first return air channel 12, the second air compartment 18 is entered through the 3rd air-valve 22, heat and mass exchange is carried out with the 3rd heat exchanger 35, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger 35, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger 35 absorbs in a upper circulation, and the moisture in this part hygroscopic material is sucked away, thus realize regeneration, entered air through Bafeng valve 27 by air exhaust passage 15 by the air of warming and humidifying;
After the time pre-set, water suction quality on the fin of the second heat exchanger 33 increases, and the hygroscopic material on the fin of the 3rd heat exchanger 35 is regenerated (drying), trigging control second four-way change-over valve 32 commutates, enter the second cycle period, second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, now, first air-valve 20, 3rd air-valve 22, 6th air-valve 25 and Bafeng valve 27 are closed, second air-valve 21, 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are opened, new wind enters the first airduct 28 by new wind passage 11 through the second air-valve 21, enter the second air compartment 18 again, heat and mass exchange is carried out with the 3rd heat exchanger 35, hot and humid new wind is by the 3rd heat exchanger 35 cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger 35, new wind by after cool-down dehumidification through the 3rd airduct 30, again through tendencies valve 24, finally send into indoor by the first air-supply passage 14,
Indoor return air enters the second airduct 29 by the first return air channel 12 through the 4th air-valve 23, enter the first air compartment 17 again, heat and mass exchange is carried out with the second heat exchanger 33, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger 33, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger 33 absorbs in a upper circulation, this part hygroscopic material is regenerated, by the air of warming and humidifying through the 4th airduct 31, air is entered by air exhaust passage 15 again through the 7th air-valve 26, second cycle period setting time then, triggering enters the first cycle period, circulation like this, thus the independence realizing cooling and dehumidifying controls,
Under this cooling condition, second heat exchanger 33 and the 3rd heat exchanger 35 pass through the switching of the second four-way change-over valve 32, realize exchange-column shift between evaporimeter and condenser, this two heat exchanger bears indoor latent heat load and part sensible heat load, plays the function of dehumidifying and cooling.
For winter heating indoor and the independence of humidification control:
Control for indoor temperature, now multi-online air-conditioning system is in heating condition, comprises the 3rd cycle period alternately and the 4th cycle period, in whole cycle period, First Heat Exchanger 4 as evaporimeter, from Atmospheric Absorption heat; 4th heat exchanger 37 is as condenser, indoor return air enters the 3rd air compartment 19 by the second return air channel 13 and carries out exchange heat with the 4th heat exchanger 37, heat enters in return air by condenser (the 4th heat exchanger 37), after air is heated, and then sends into indoor by the second air-supply passage 16;
Under this heating condition, most of indoor sensible heat load born by the 4th heat exchanger 37, plays the function of heating;
Indoor humidity is controlled, initial time (the 3rd cycle period), second heat exchanger 33 as evaporimeter and the 3rd heat exchanger 35 as condenser, now, first air-valve 20, 3rd air-valve 22, 6th air-valve 25 and Bafeng valve 27 are closed, second air-valve 21, 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are opened, new wind enters the first airduct 28 by new wind passage 11 through the second air-valve 21, enter the second air compartment 18 again, heat and mass exchange is carried out with the 3rd heat exchanger 35, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger 35, and the new wind of drying absorbs the moisture of the hygroscopic material on the fin of the 3rd heat exchanger 35 at a upper cyclic absorption, make this part hygroscopic material dry and regenerated, new wind is by after warming and humidifying, through the 3rd airduct 30, again through tendencies valve 24, finally send into indoor by the first air-supply passage 14,
Indoor return air enters the second airduct 29 by the first return air channel 12 through the 4th air-valve 23, enter the first air compartment 17 again, heat and mass exchange is carried out with the second heat exchanger 33, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger 33, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger 33, by the air of reducing temperature and humidity through the 4th airduct 31, then enter air through the 7th air-valve 26 by air exhaust passage 15;
After the time pre-set, hygroscopic material on the fin of the second heat exchanger 33, by the water vapour in absorption return air, quality increases, and the hygroscopic material on the fin of the 3rd heat exchanger 35 is regenerated, second four-way change-over valve 32 commutates, triggering enters the 4th cycle period, second heat exchanger 33 as condenser and the 3rd heat exchanger 35 as evaporimeter, now, first air-valve 20, 3rd air-valve 22, 6th air-valve 25 and Bafeng valve 27 are opened, second air-valve 21, 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are closed, outdoor new wind enters the first air compartment 17 by new wind passage 11 through the first air-valve 20, heat and mass exchange is carried out with the second heat exchanger 33, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger 33, and the new wind of drying absorbs the moisture of the hygroscopic material on the fin of the second heat exchanger 33 at a upper cyclic absorption, this part hygroscopic material is regenerated, new wind is by after warming and humidifying, through the 6th air-valve 25, and send into indoor by the first air-supply passage 14,
Indoor return air enters the second air compartment 18 by the first return air channel 12 through the 3rd air-valve 22, heat and mass exchange is carried out with the 3rd heat exchanger 35, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger 35, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger 35, air is entered through Bafeng valve 27 by air exhaust passage 15 by the air of reducing temperature and humidity, the 4th cycle period setting time then, triggering enters the 3rd cycle period, circulation like this, thus the independence realizing humidification and heating controls;
Under this heating condition, second heat exchanger 33 and the 3rd heat exchanger 35 pass through the switching of the second four-way change-over valve 32, thus realize exchange-column shift between evaporimeter and condenser, make the second heat exchanger 33 and the 3rd heat exchanger 35 can bear indoor latent heat load and part sensible heat load, play the function of humidification and heating.
Fig. 2 is the structural representation of another embodiment of the present invention off-premises station.See Fig. 2, this off-premises station comprises: compressor 1, check valve 2, first four-way change-over valve 3, First Heat Exchanger 4, first electric expansion valve 5, gas-liquid separator 6, first stop valve 7, second stop valve 8, 3rd stop valve 9, 4th stop valve 10 and heat exchanger 38, with off-premises station in Fig. 1 01, 3rd end of the first four-way change-over valve 3 is connected with the input of the 3rd stop valve 9, the output of the first electric expansion valve 5 be connected with the input of the 4th stop valve 10 unlike, in the embodiment of the present invention, add built-in heat exchanger 38, the first end of heat exchanger 38 is connected with the input of gas-liquid separator 6 and the 3rd end of the first four-way change-over valve 3 respectively, second end of heat exchanger 38 is connected with the output of the first electric expansion valve 5, 3rd end of heat exchanger 38 is connected with the input of the 4th stop valve 10, 3rd end of heat exchanger 38 is connected with the input of the 3rd stop valve 9.
In the embodiment of the present invention, heat exchanger 38 is actually a kind of gas liquid exchanger, and the principle of its optimizing operation is as follows:
Cold-producing medium between first electric expansion valve 5 and the 4th stop valve 10 in pipeline, for flowing out rear and before throttling first strand of cold-producing medium from condenser, is high-temperature high-pressure refrigerant liquid; Cold-producing medium between second stop valve 8 and gas-liquid separator 6 in pipeline, for flowing out rear from evaporimeter and being about to the second strand of cold-producing medium entering compressor, is low-temperature low-pressure refrigerant gas; By increasing embedded heat exchanger 38, can make between first strand of cold-producing medium and second strand of cold-producing medium, realize the exchange heat between gas-liquid, before can making throttling, high-temperature high-pressure refrigerant liquid possesses the degree of supercooling of 10 ~ 15 DEG C, and make the low-temperature low-pressure refrigerant gas before entering compressor possess the degree of superheat of 2 ~ 5 DEG C, thus improve the operational efficiency of multiple on-line system and ensure the safe operation of compressor.
In the embodiment of the present invention, as mentioned above, because in indoor set 02, the connection of airduct possesses various ways, such as, in the first air compartment and the second air compartment, namely the second air-valve 21 can be connected to the second air compartment by the first airduct 28, the first air-valve 20 is connected to the first air compartment, also the first air-valve 20 can be connected to the second air compartment by the first airduct 28, the second air-valve 21 is connected to the first air compartment, therefore, corresponding air-valve opens and closes rule and also possesses various ways.Specifically, no matter in indoor set 02, how airduct connects and how the keying rule of air-valve sets, as long as the design of airduct and air-valve open and close rule and can realize following functions in indoor set 02:
When cooling in summer dehumidifies, new wind and evaporimeter carry out heat and mass, to realize the cool-down dehumidification of new wind; Return air and condenser carry out heat and mass, to realize the regeneration of the hygroscopic material on the fin of condenser and to reclaim the cold of return air;
In the winter time during warming and humidifying, new wind and condenser carry out heat and mass, to realize the warming and humidifying of new wind, and make the regeneration of the hygroscopic material on the fin of condenser; Return air and evaporimeter carry out heat and mass, to reclaim heat in return air and water vapour.
Fig. 3 is the structural representation of another embodiment of the present invention indoor set.See Fig. 3, with indoor set in Fig. 1 unlike, in first air compartment 17 and the second air compartment 18, the connected mode of airduct is different, in the embodiment of the present invention, first airduct 28 connects the first air-valve 20 and the second air compartment 18, namely the first air-valve 20 is connected to the second air compartment 18 by the first airduct 28, second airduct 29 connects the 3rd air-valve 22 and the first air compartment 17,3rd airduct 30 connects the 6th air-valve 25 and the second air compartment 18,4th airduct 31 connects Bafeng valve 27 and the first air compartment 17, and the air-valve of its correspondence opens and closes regular as follows:
For cooling in summer dehumidifying,
Second heat exchanger 33 be evaporimeter and the 3rd heat exchanger 35 for condenser time, the second air-valve 21, the 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are opened, and the first air-valve 20, the 3rd air-valve 22, the 6th air-valve 25 and Bafeng valve 27 are closed;
Second heat exchanger 33 be condenser and the 3rd heat exchanger 35 for evaporimeter time, the second air-valve 21, the 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are closed, and the first air-valve 20, the 3rd air-valve 22, the 6th air-valve 25 and Bafeng valve 27 are opened;
For warming and humidifying in winter,
Second heat exchanger 33 be evaporimeter and the 3rd heat exchanger 35 for condenser time, the second air-valve 21, the 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are closed, and the first air-valve 20, the 3rd air-valve 22, the 6th air-valve 25 and Bafeng valve 27 are opened;
Second heat exchanger 33 be condenser and the 3rd heat exchanger 35 for evaporimeter time, the second air-valve 21, the 4th air-valve 23, tendencies valve 24 and the 7th air-valve 26 are opened, and the first air-valve 20, the 3rd air-valve 22, the 6th air-valve 25 and Bafeng valve 27 are closed.
In the embodiment of the present invention, the second four-way change-over valve 32 in indoor set 02 and the position of the second electric expansion valve 34 are not necessarily limited to the second air compartment 18, from the inner crushing of reduction refrigerant line and the angle consideration being convenient to pipe laying, these two parts can be installed on other rational position.
From above-mentioned, the multi-online air-conditioning system of the embodiment of the present invention, is shared by off-premises station, effectively can reduce equipment cost, and the centralized management of each indoor set can be realized, an indoor set can be started separately and run, also can start multiple stage indoor set to run simultaneously, make control more flexible.
Further, the independence that indoor set part can realize temperature and humidity controls, the continuous operation of fresh-air ventilation in summer, return air cold recovery, dehumidifying and cooling can be realized, and the fresh-air ventilation in winter, return air heat recovery, humidification and heat supply continuous operation, indoor machine structure is compact and device integration is high; And, by reclaiming the cold of return air and heat, such that the evaporating temperature of multi-online air-conditioning system is higher and condensation temperature is lower, thus the Energy Efficiency Ratio that multi-online air-conditioning system is run is high, improves the Energy Efficiency Ratio of multi-online air-conditioning system operation; In addition, by regulating the ratio of one-way valved outlet place (output) two strands of cold-producing mediums in off-premises station, the ratio of sensible heat and latent heat in multi-online air-conditioning system conditioning chamber can be controlled.
Fig. 4 is the method flow schematic diagram that the embodiment of the present invention controls humiture in multi-online air-conditioning system.See Fig. 4, this flow process comprises:
Step 401, second strand of cold-producing medium of the 3rd end input of the first strand of cold-producing medium inputted by the switch unit of off-premises station and off-premises station confluxes, and after dividing cell compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
In this step, dividing cell comprises: compressor, check valve and gas-liquid separator, wherein,
The output of compressor is connected with the input of check valve, the output of check valve is connected with switch unit and first end respectively, the input of gas-liquid separator is connected with the 3rd end of the output of switch unit and off-premises station, and the output of gas-liquid separator is connected with the input of compressor.
Step 402, second strand of cold-producing medium dividing cell exported exports the first end of indoor set to by the first end of off-premises station, sequentially flow through the second condenser and second evaporimeter of indoor set, and the 3rd end of machine flows out indoor, the 3rd end through off-premises station is back to dividing cell;
In this step, the second condenser is the second heat exchanger, then the second evaporimeter is the 3rd heat exchanger, if the second condenser is the 3rd heat exchanger, then the second evaporimeter is the second heat exchanger.
Step 403, sequentially flows through the first condenser, the first evaporimeter after being switched by first strand of cold-producing medium that dividing cell exports, and enters dividing cell.
In this step, the element carrying out switching is the first four-way change-over valve, the first end of the first four-way change-over valve is connected with the output of check valve, second end of the first four-way change-over valve is connected with the input of First Heat Exchanger, 3rd end of the first four-way change-over valve is connected with the input of gas-liquid separator, and the 4th end of the first four-way change-over valve is connected with the second end of off-premises station.
Wherein, described first strand of cold-producing medium that dividing cell exports is switched after sequentially flow through the first condenser, the first evaporimeter, and enter dividing cell and comprise:
When multi-online air-conditioning system is in cooling condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first condenser, indoor set as the first evaporimeter;
First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end through off-premises station exports the 4th end of indoor set to, and through the 4th heat exchanger of indoor set, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first evaporimeter, indoor set as the first condenser;
First strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger, and the 4th end via indoor set flows out, and flows into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell.
In the embodiment of the present invention, off-premises station comprises: compressor, check valve, the first four-way change-over valve, First Heat Exchanger, the first electric expansion valve, gas-liquid separator, the first stop valve, the second stop valve, the 3rd stop valve and the 4th stop valve;
Indoor set comprises: new wind passage, first return air channel, second return air channel, first air-supply passage, air exhaust passage, second air-supply passage, first air compartment, second air compartment, 3rd air compartment, first air-valve, second air-valve, 3rd air-valve, 4th air-valve, tendencies valve, 6th air-valve, 7th air-valve, Bafeng valve, first airduct, second airduct, 3rd airduct, 4th airduct, second four-way change-over valve, second heat exchanger, second electric expansion valve, 3rd heat exchanger, 3rd electric expansion valve and the 4th heat exchanger,
The method flow then controlling humiture in multi-online air-conditioning system is specially:
Cold-producing medium is discharged by compressor output end and is entered check valve, first strand of cold-producing medium and second strand of cold-producing medium two parts are divided into by check valve higher pressure refrigerant gas out, first strand of cold-producing medium enters the first end of the first four-way change-over valve in switch unit, second strand of cold-producing medium enters the first stop valve of off-premises station first end, and exports indoor set to via the first stop valve;
When multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve standard-sized sheet of evaporimeter liquid supply rate is regulated, the refrigerant flow that the second electric expansion valve and the 3rd electronic expansion valve regulation flow through according to pre-set programs;
First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve, enter First Heat Exchanger, the first electric expansion valve, the 4th stop valve, the 3rd electric expansion valve, the 4th heat exchanger and the second stop valve successively, be back to the 4th end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the first cycle period, the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, enter compressor by compressor input;
At the second cycle period, the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input;
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve standard-sized sheet, and the first electric expansion valve and the second electric expansion valve play throttling action respectively;
First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve, enter the second stop valve, the 4th heat exchanger, the 3rd electric expansion valve, the 4th stop valve, the first electric expansion valve and First Heat Exchanger successively, be back to the second end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the 3rd cycle period, the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, finally enter compressor by compressor input;
At the 4th cycle period, the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention also comprises these change and modification.

Claims (18)

1. a multi-online air-conditioning system, is characterized in that, this system comprises: off-premises station and indoor set, wherein,
Off-premises station comprises: control unit, dividing cell, switch unit, First Heat Exchanger, the first electric expansion valve, first end, the second end, the 3rd end and the 4th end;
Indoor set comprises: the first air compartment unit, the second air compartment unit and the 3rd air compartment unit, wherein, be provided with the second heat exchanger, new wind passage, the first air-supply passage and the first air compartment in first air compartment unit, new wind passage and the first air-supply passage lay respectively at the first air compartment unit both sides; Be provided with the 3rd heat exchanger, the first return air channel, air exhaust passage, the second air compartment, first end and the 3rd end in second air compartment unit, the first return air channel and air exhaust passage lay respectively at the second air compartment unit both sides; In 3rd air compartment unit, be provided with the second end, the 4th end, the 4th heat exchanger, the second return air channel, the second air-supply passage and the 3rd air compartment, the second return air channel and the second air-supply passage lay respectively at the 3rd air compartment unit both sides;
First air compartment unit comprises further: the first air-valve, the second air-valve, tendencies valve, the 6th air-valve, the first airduct and the 3rd airduct, wherein, inwall one end of first air compartment offers new wind passage, the inwall other end offers the first air-supply passage, the first air-supply passage is led to and inwall one end of close new wind passage at new wind passage, be provided with the first air-valve and the second air-valve, lead to new wind passage and the inwall other end of close first air-supply passage at the first air-supply passage, be provided with tendencies valve and the 6th air-valve; In the first air compartment, be provided with the second heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the first airduct of the second air-valve being connected to the second air compartment unit and, tendencies valve is connected to the 3rd airduct of the second air compartment unit;
Second air compartment unit comprises further: the 3rd air-valve, 4th air-valve, 7th air-valve, Bafeng valve, second airduct, 4th airduct, second four-way change-over valve and the second electric expansion valve, wherein, second air compartment and the first air compartment inwall one end in the same way offers the first return air channel, the inwall other end offers air exhaust passage, air exhaust passage is led at the first return air channel, and near inwall one end of the first return air channel, be provided with the 3rd air-valve and the 4th air-valve, the first return air channel is led at air exhaust passage, and the inwall other end of close air exhaust passage, be provided with the 7th air-valve and Bafeng valve, in the second air compartment, be provided with the second four-way change-over valve, the second electric expansion valve and the 3rd heat exchanger,
In the junction of the first air compartment and the second air compartment, be provided with the second airduct of the 4th air-valve being connected to the first air compartment and, the 7th air-valve is connected to the 4th airduct of the first air compartment;
3rd air compartment unit comprises further: the 3rd electric expansion valve;
Control unit, for when multi-online air-conditioning system is in cooling condition, controls First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter; When multi-online air-conditioning system is in heating condition, control First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser;
Dividing cell, second strand of cold-producing medium for the 3rd end input of first strand of cold-producing medium being inputted by switch unit and off-premises station confluxes, and after compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
The first end of off-premises station, second strand of cold-producing medium for dividing cell being exported exports the first end of indoor set to;
Switch unit, for when multi-online air-conditioning system is in cooling condition, First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end through off-premises station exports the 4th end of indoor set to, and through the 4th heat exchanger of indoor set, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, first strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger, the 4th end via indoor set flows out, and flow into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell;
3rd end of off-premises station, for second burst of back flow of refrigerant being flowed out by the 3rd end of machine indoor to dividing cell.
2. system according to claim 1, is characterized in that,
When multi-online air-conditioning system is in cooling condition,
As the First Heat Exchanger of condenser, heat is entered air; Indoor return air enters the 3rd air compartment by the second return air channel and carries out exchange heat with as the refrigerant in the 4th heat exchanger of evaporimeter, and the heat of return air is taken away by low temperature refrigerant in evaporimeter, and air is lowered the temperature and then sent into by the second air-supply passage indoor;
Indoor set controls the second heat exchanger and the 3rd heat exchanger performs cyclic switching at the first cycle period and the second cycle period:
At the first cycle period, indoor set control the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the second heat exchanger, the 3rd heat exchanger successively, 3rd end of machine flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
Outdoor new wind enters the first air compartment by new wind passage, heat and mass exchange is carried out with the second heat exchanger, hot and humid new wind is by the second heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger, new wind is sent into indoor by the first air-supply passage after cool-down dehumidification;
Indoor return air enters the second air compartment by the first return air channel, heat and mass exchange is carried out with the 3rd heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs in the second cycle period, is entered air by the air of warming and humidifying via air exhaust passage;
At the second cycle period, control the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, second strand of cold-producing medium of the indoor set of machine first end input outdoor first end is flowed through the 3rd heat exchanger, the second heat exchanger successively, 3rd end of machine flows out indoor, enter the 3rd end of off-premises station, and be back to dividing cell through the 3rd end of off-premises station;
New wind enters the second air compartment by new wind passage, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid new wind is by the 3rd heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, new wind by after cool-down dehumidification through the second air compartment, finally send into indoor by the first air-supply passage;
Indoor return air enters the first air compartment by the first return air channel, heat and mass exchange is carried out with the second heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs in the first cycle period, is entered air by the air of warming and humidifying via air exhaust passage, second cycle period setting time then, triggering enters the first cycle period, so circulates;
When multiple on-line system is in heating condition,
As the First Heat Exchanger of evaporimeter, from Atmospheric Absorption heat; Indoor return air enters the 3rd air compartment by the second return air channel and carries out exchange heat with the 4th heat exchanger as condenser, and heat enters in return air by condenser, after air is heated, and then is sent into indoor by the second air-supply passage;
Indoor set controls the second heat exchanger and the 3rd heat exchanger performs cyclic switching at the 3rd cycle period and the 4th cycle period:
At the 3rd cycle period, control the second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, by second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the 3rd heat exchanger, the second heat exchanger successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
New wind enters the second air compartment by new wind passage, heat and mass exchange is carried out with the 3rd heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs at the 4th cycle period, new wind, by after warming and humidifying, is sent into indoor via the first air-supply passage;
Indoor return air enters the first air compartment by the first return air channel, heat and mass exchange is carried out with the second heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger, is entered air by the air of reducing temperature and humidity via air exhaust passage;
At the 4th cycle period, control the second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, second strand of cold-producing medium of machine first end outflow outdoor, via the first end of indoor set, flow through the second heat exchanger, the 3rd heat exchanger successively, the 3rd end via indoor set flows out, and flows into the 3rd end of off-premises station, is back to dividing cell;
Outdoor new wind enters the first air compartment by new wind passage, heat and mass exchange is carried out with the second heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs at the 3rd cycle period, new wind, by after warming and humidifying, is sent into indoor via the first air-supply passage;
Indoor return air enters the second air compartment by the first return air channel, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, is entered air by the air of reducing temperature and humidity via air exhaust passage, the 4th cycle period setting time then, triggering enters the 3rd cycle period, so circulates.
3. system according to claim 2, is characterized in that, described dividing cell comprises: compressor, check valve and gas-liquid separator, wherein,
The output of compressor is connected with the input of check valve, the output of check valve is connected with switch unit and first end respectively, the input of gas-liquid separator is connected with the 3rd end of the output of switch unit and off-premises station, and the output of gas-liquid separator is connected with the input of compressor.
4. system according to claim 3, it is characterized in that, described switch unit is the first four-way change-over valve, the first end of the first four-way change-over valve is connected with the output of check valve, second end of the first four-way change-over valve is connected with the input of First Heat Exchanger, 3rd end of the first four-way change-over valve is connected with the input of gas-liquid separator, and the 4th end of the first four-way change-over valve is connected with the second end of off-premises station.
5. system according to claim 4, is characterized in that, the first end of described off-premises station is the first stop valve, and the second end of off-premises station is the second stop valve, and the 3rd end of off-premises station is the 3rd stop valve, and the 4th end of off-premises station is the 4th stop valve.
6. system according to claim 5, is characterized in that, described off-premises station comprises further: the first electric expansion valve that input is connected with the output of First Heat Exchanger, output is connected with the input of the 4th stop valve.
7. system according to claim 6, is characterized in that,
The output of compressor is connected with the input of check valve, the output of check valve is connected with the first end of the first four-way change-over valve and the input of the first stop valve respectively, second end of the first four-way change-over valve is connected with the input of First Heat Exchanger, the output of First Heat Exchanger is connected with the input of the first electric expansion valve, the output of the first electric expansion valve is connected with the input of the 4th stop valve, the output of the 4th stop valve is connected with indoor set, 3rd end of the first four-way change-over valve is connected with the input of gas-liquid separator and the input of the 3rd stop valve respectively, the output of gas-liquid separator is connected with the input of compressor, 4th end of the first four-way change-over valve is connected with the input of the second stop valve, first stop valve, the output of the second stop valve and the 3rd stop valve is connected with indoor set respectively.
8. the system according to any one of claim 3 to 7, is characterized in that, described compressor is made up of one or more constant speed compressor, or is made up of variable speed compressor, or is combined by constant speed compressor and variable speed compressor and form.
9. system according to claim 8, is characterized in that,
Stuffy between the 3rd air compartment and the second air compartment;
3rd air compartment and the first air compartment inwall one end in the same way offers the second return air channel, and the inwall other end offers the second air-supply passage, in the 3rd air compartment, is provided with the 3rd electric expansion valve and the 4th heat exchanger;
The output of the first stop valve is connected with the second end of the second four-way change-over valve, the first end of the second four-way change-over valve is connected with one end of the second heat exchanger, the other end of the second heat exchanger is connected with one end of the second electric expansion valve, the other end of the second electric expansion valve is connected with one end of the 3rd heat exchanger, the other end of the 3rd heat exchanger is connected with the 3rd end of the second four-way change-over valve, 4th end of the second four-way change-over valve is connected with the output of the 3rd stop valve, the output of the second stop valve is connected with one end of the 4th heat exchanger, the other end of the 4th heat exchanger is connected with one end of the 3rd electric expansion valve, the other end of the 3rd electric expansion valve is connected with the output of the 4th stop valve.
10. system according to claim 9, it is characterized in that, described First Heat Exchanger, the second heat exchanger, the 3rd heat exchanger and the 4th heat exchanger are that aluminium foil copper tube with fins heat exchanger or aluminum fin decline channel heat exchanger, and the fin of the second heat exchanger and the 3rd heat exchanger scribbles hygroscopic material.
11. systems according to claim 9, is characterized in that,
Cold-producing medium is discharged by compressor output end and is entered check valve, first strand of cold-producing medium and second strand of cold-producing medium two parts are divided into by check valve higher pressure refrigerant gas out, first strand of cold-producing medium enters the first end of the first four-way change-over valve, second strand of cold-producing medium enters the first stop valve, and exports indoor set to via the first stop valve;
When multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve standard-sized sheet of evaporimeter liquid supply rate is regulated, the refrigerant flow that the second electric expansion valve and the 3rd electronic expansion valve regulation flow through according to pre-set programs;
First Heat Exchanger as condenser, the 4th heat exchanger as evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve, enter First Heat Exchanger, the first electric expansion valve, the 4th stop valve, the 3rd electric expansion valve, the 4th heat exchanger and the second stop valve successively, be back to the 4th end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the first cycle period, second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, enter compressor by compressor input;
At the second cycle period, second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input;
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve standard-sized sheet, and the first electric expansion valve and the second electric expansion valve play throttling action respectively;
First Heat Exchanger as evaporimeter, the 4th heat exchanger as condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve, enter the second stop valve, the 4th heat exchanger, the 3rd electric expansion valve, the 4th stop valve, the first electric expansion valve and First Heat Exchanger successively, be back to the second end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the 3rd cycle period, second heat exchanger as evaporimeter and the 3rd heat exchanger as condenser, the first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, finally enter compressor by compressor input;
At the 4th cycle period, second heat exchanger as condenser and the 3rd heat exchanger as evaporimeter, the first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
12. systems according to claim 11, is characterized in that,
In the first cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are opened, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are closed;
Outdoor new wind enters the first air compartment by new wind passage through the first air-valve, heat and mass exchange is carried out with the second heat exchanger, hot and humid new wind is by the second heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the second heat exchanger, new wind by after cool-down dehumidification through the 6th air-valve, and send into indoor by the first air-supply passage;
Indoor return air is by the first return air channel, the second air compartment is entered through the 3rd air-valve, heat and mass exchange is carried out with the 3rd heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the 3rd heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs in the second cycle period, is entered air by the air of warming and humidifying through Bafeng valve by air exhaust passage;
After the time pre-set, trigging control second four-way change-over valve commutates, and enters the second cycle period, and the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are closed, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are opened;
New wind enters the first airduct by new wind passage through the second air-valve, enter the second air compartment again, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid new wind is by the 3rd heat exchanger cooling down, and the water vapour in new wind is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, new wind by after cool-down dehumidification through the 3rd airduct, then through tendencies valve, finally sent into indoor by the first air-supply passage;
Indoor return air enters the second airduct by the first return air channel through the 4th air-valve, enter the first air compartment again, heat and mass exchange is carried out with the second heat exchanger, the return air of low temperature and low humidity absorbs the heat extraction of the second heat exchanger, cold in return air is recovered, and return air takes away the moisture that the hygroscopic material on the fin of the second heat exchanger absorbs in the first cycle period, by the air of warming and humidifying through the 4th airduct, air is entered by air exhaust passage again through the 7th air-valve, second cycle period setting time then, triggering enters the first cycle period, so circulates.
13. systems according to claim 11, is characterized in that,
In the 3rd cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are closed, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are opened;
New wind enters the first airduct by new wind passage through the second air-valve, enter the second air compartment again, heat and mass exchange is carried out with the 3rd heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the 3rd heat exchanger, and the new wind of drying absorbs the moisture that the hygroscopic material on the fin of the 3rd heat exchanger absorbs at the 4th cycle period, new wind by after warming and humidifying, through the 3rd airduct, again through tendencies valve, finally sent into indoor by the first air-supply passage;
Indoor return air enters the second airduct by the first return air channel through the 4th air-valve, enter the first air compartment again, heat and mass exchange is carried out with the second heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the second heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the second heat exchanger, by the air of reducing temperature and humidity through the 4th airduct, then enter air through the 7th air-valve by air exhaust passage;
After the time pre-set, the second four-way change-over valve commutation, trigger and enter the 4th cycle period, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve are opened, and the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve are closed;
Outdoor new wind enters the first air compartment by new wind passage through the first air-valve, heat and mass exchange is carried out with the second heat exchanger, the new wind of low temperature and low humidity is heated by the heat extraction of the second heat exchanger, and the new wind of drying absorbs the moisture of the hygroscopic material on the fin of the second heat exchanger at a upper cyclic absorption, new wind is by after warming and humidifying, through the 6th air-valve, and sent into indoor by the first air-supply passage;
Indoor return air enters the second air compartment by the first return air channel through the 3rd air-valve, heat and mass exchange is carried out with the 3rd heat exchanger, hot and humid return air is lowered the temperature by the low temperature refrigerant in the 3rd heat exchanger, heat in return air is recovered, and the water vapour in return air is absorbed by the hygroscopic material on the fin of the 3rd heat exchanger, is entered air by the air of reducing temperature and humidity through Bafeng valve by air exhaust passage, the 4th cycle period setting time then, triggering enters the 3rd cycle period, so circulates.
14. systems according to claim 7, is characterized in that, described off-premises station comprises further:
Heat exchanger, the first end of heat exchanger is connected with the input of gas-liquid separator and the 3rd end of the first four-way change-over valve respectively, second end of heat exchanger is connected with the output of the first electric expansion valve, 3rd end of heat exchanger is connected with the input of the 4th stop valve, and the 3rd end of heat exchanger is connected with the input of the 3rd stop valve.
15. systems according to claim 6, is characterized in that,
Described first air compartment unit comprises further: the first air-valve, the second air-valve, tendencies valve, the 6th air-valve, the first airduct and the 3rd airduct, wherein,
Inwall one end of first air compartment offers new wind passage, the inwall other end offers the first air-supply passage, the first air-supply passage is led to and inwall one end of close new wind passage at new wind passage, be provided with the first air-valve and the second air-valve, lead to new wind passage and the inwall other end of close first air-supply passage at the first air-supply passage, be provided with tendencies valve and the 6th air-valve; In the first air compartment, be provided with the second heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the first airduct of the first air-valve being connected to the second air compartment unit and, the 6th air-valve is connected to the 3rd airduct of the second air compartment unit;
Described second air compartment unit comprises further: the 3rd air-valve, the 4th air-valve, the 7th air-valve, Bafeng valve, the second airduct, the 4th airduct, the second four-way change-over valve and the second electric expansion valve, wherein,
Second air compartment and the first air compartment inwall one end in the same way offers the first return air channel, the inwall other end offers air exhaust passage, air exhaust passage is led to and inwall one end of close first return air channel at the first return air channel, be provided with the 3rd air-valve and the 4th air-valve, lead to the first return air channel and the inwall other end of close air exhaust passage at air exhaust passage, be provided with the 7th air-valve and Bafeng valve; In the second air compartment, be provided with the second four-way change-over valve, the second electric expansion valve and the 3rd heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the second airduct of the 3rd air-valve being connected to the first air compartment and, Bafeng valve is connected to the 4th airduct of the first air compartment.
16. 1 kinds of methods controlling humiture in multi-online air-conditioning system, the method comprises:
Second strand of cold-producing medium of the 3rd end input of the first strand of cold-producing medium inputted by the switch unit of off-premises station and off-premises station confluxes, and after dividing cell compression, shunts, exports first strand of cold-producing medium and second strand of cold-producing medium respectively;
Second strand of cold-producing medium dividing cell exported exports the first end of indoor set to by the first end of off-premises station, sequentially flow through the second condenser and second evaporimeter of indoor set, and the 3rd end of machine flows out indoor, the 3rd end through off-premises station is back to dividing cell;
Sequentially flow through the first condenser, the first evaporimeter after being switched by first strand of cold-producing medium that dividing cell exports, and enter dividing cell;
Wherein, off-premises station comprises: compressor, check valve, the first four-way change-over valve, First Heat Exchanger, the first electric expansion valve, gas-liquid separator, the first stop valve, the second stop valve, the 3rd stop valve and the 4th stop valve;
Described indoor set comprises: the first air compartment unit, the second air compartment unit, the second return air channel, the second air-supply passage, the 3rd air compartment, the second electric expansion valve, the 3rd electric expansion valve and the 4th heat exchanger;
First air compartment unit comprises further: the first air-valve, the second air-valve, tendencies valve, the 6th air-valve, the first airduct and the 3rd airduct, wherein, inwall one end of first air compartment offers new wind passage, the inwall other end offers the first air-supply passage, the first air-supply passage is led to and inwall one end of close new wind passage at new wind passage, be provided with the first air-valve and the second air-valve, lead to new wind passage and the inwall other end of close first air-supply passage at the first air-supply passage, be provided with tendencies valve and the 6th air-valve; In the first air compartment, be provided with the second heat exchanger;
In the junction of the first air compartment and the second air compartment, be provided with the first airduct of the second air-valve being connected to the second air compartment unit and, tendencies valve is connected to the 3rd airduct of the second air compartment unit;
Second air compartment unit comprises further: the 3rd air-valve, 4th air-valve, 7th air-valve, Bafeng valve, second airduct, 4th airduct, second four-way change-over valve, wherein, second air compartment and the first air compartment inwall one end in the same way offers the first return air channel, the inwall other end offers air exhaust passage, air exhaust passage is led at the first return air channel, and near inwall one end of the first return air channel, be provided with the 3rd air-valve and the 4th air-valve, the first return air channel is led at air exhaust passage, and the inwall other end of close air exhaust passage, be provided with the 7th air-valve and Bafeng valve, in the second air compartment, be provided with the second four-way change-over valve and the 3rd heat exchanger,
In the junction of the first air compartment and the second air compartment, be provided with the second airduct of the 4th air-valve being connected to the first air compartment and, the 7th air-valve is connected to the 4th airduct of the first air compartment.
Wherein, when multi-online air-conditioning system is in cooling condition, the first end of the first four-way change-over valve and the second end UNICOM, 3rd end and the 4th end UNICOM, the first electric expansion valve standard-sized sheet of evaporimeter liquid supply rate is regulated, the refrigerant flow that the second electric expansion valve and the 3rd electronic expansion valve regulation flow through according to pre-set programs;
First Heat Exchanger as the first condenser, the 4th heat exchanger as the first evaporimeter, first strand of cold-producing medium is by the second end of the first four-way change-over valve, enter First Heat Exchanger, the first electric expansion valve, the 4th stop valve, the 3rd electric expansion valve, the 4th heat exchanger and the second stop valve successively, be back to the 4th end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the first cycle period, the second heat exchanger as the second evaporimeter and the 3rd heat exchanger as the second condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, enter compressor by compressor input;
At the second cycle period, the second heat exchanger as the second condenser and the 3rd heat exchanger as the second evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
17. methods according to claim 16, wherein, described first strand of cold-producing medium that dividing cell exports is switched after sequentially flow through the first condenser, the first evaporimeter, and enter dividing cell and comprise:
When multi-online air-conditioning system is in cooling condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first condenser, indoor set as the first evaporimeter;
First Heat Exchanger is flowed through after being switched by first strand of cold-producing medium that dividing cell exports, the 4th end through off-premises station exports the 4th end of indoor set to, and through the 4th heat exchanger of indoor set, be back to the second end of off-premises station by the second end of indoor set, the second end through off-premises station enters dividing cell;
When multi-online air-conditioning system is in heating condition, control First Heat Exchanger in off-premises station as the 4th heat exchanger in the first evaporimeter, indoor set as the first condenser;
First strand of cold-producing medium is switched the second end exporting indoor set via the second end to, the second end through indoor set flows through the 4th heat exchanger, and the 4th end via indoor set flows out, and flows into the 4th end of off-premises station, the 4th end through off-premises station flows through First Heat Exchanger, then is back to dividing cell.
18. methods according to claim 17, wherein,
Cold-producing medium is discharged by compressor output end and is entered check valve, first strand of cold-producing medium and second strand of cold-producing medium two parts are divided into by check valve higher pressure refrigerant gas out, first strand of cold-producing medium enters the first end of the first four-way change-over valve in switch unit, second strand of cold-producing medium enters the first stop valve of off-premises station first end, and exports indoor set to via the first stop valve;
When multiple on-line system is in heating condition, the first end of the first four-way change-over valve is communicated with the 4th end, and the second end is communicated with the 3rd end, the 3rd electric expansion valve standard-sized sheet, and the first electric expansion valve and the second electric expansion valve play throttling action respectively;
First Heat Exchanger as the first evaporimeter, the 4th heat exchanger as the first condenser, first strand of cold-producing medium is via first end, the 4th end of the first four-way change-over valve, enter the second stop valve, the 4th heat exchanger, the 3rd electric expansion valve, the 4th stop valve, the first electric expansion valve and First Heat Exchanger successively, be back to the second end of the first four-way change-over valve again, the 3rd end via the first four-way change-over valve enters gas-liquid separator, finally enters compressor by compressor input;
Second strand of cold-producing medium is entered the second end of the second four-way change-over valve by the output of the first stop valve;
At the 3rd cycle period, the second heat exchanger as the second evaporimeter and the 3rd heat exchanger as the second condenser, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve close, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve open;
The first end of the second four-way change-over valve is communicated with the 4th end and the second end is communicated with the 3rd end, this second strand of cold-producing medium is from the second end of the second four-way change-over valve, via the 3rd end of the second four-way change-over valve, enter the 3rd heat exchanger, the second electric expansion valve, the second heat exchanger, the first end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, finally get back to gas-liquid separator, finally enter compressor by compressor input;
At the 4th cycle period, the second heat exchanger as the second condenser and the 3rd heat exchanger as the second evaporimeter, the first air-valve, the 3rd air-valve, the 6th air-valve and Bafeng valve open, the second air-valve, the 4th air-valve, tendencies valve and the 7th air-valve close;
The first end of the second four-way change-over valve is communicated with the second end and the 3rd end is communicated with the 4th end, this second strand of cold-producing medium is from the second end, the first end of the second four-way change-over valve, enter the second heat exchanger, the second electric expansion valve, the 3rd heat exchanger, the 3rd end of the second four-way change-over valve, the 4th end and the 3rd stop valve successively, return gas-liquid separator, finally enter compressor by compressor input.
CN201210350129.6A 2012-09-20 2012-09-20 Control method and the multi-online air-conditioning system of humiture in multi-online air-conditioning system Active CN102878613B (en)

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