CN106403143A - Temperature and humidity independent treatment air conditioner system and control method thereof - Google Patents

Temperature and humidity independent treatment air conditioner system and control method thereof Download PDF

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Publication number
CN106403143A
CN106403143A CN201510466499.XA CN201510466499A CN106403143A CN 106403143 A CN106403143 A CN 106403143A CN 201510466499 A CN201510466499 A CN 201510466499A CN 106403143 A CN106403143 A CN 106403143A
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China
Prior art keywords
indoor
temperature difference
heat exchanger
temperature
setting
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CN201510466499.XA
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CN106403143B (en
Inventor
刘江彬
宋强
刘景升
李银银
金伟灿
李珍
郭永刚
王冰
刘晓蕾
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Qingdao Haier Air Conditioning Electric Co Ltd
Haier Zhijia Co Ltd
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Qingdao Haier Air Conditioning Electric Co Ltd
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Priority to CN201510466499.XA priority Critical patent/CN106403143B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides a temperature and humidity independent treatment air conditioner system and a control method thereof. The temperature and humidity independent treatment air conditioner system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, an outdoor fan, an indoor fan, a room temperature sensor and an indoor humidity sensor, wherein the outdoor heat exchanger and the indoor heat exchanger are connected in series with each other in sequence to form a loop; and the temperature and humidity independent treatment air conditioner system further comprises a dehumidification cooling heat exchanger, a solution regeneration heat exchanger and a dehumidification heat exchanger. According to the temperature and humidity independent treatment air conditioner system and the control method thereof which are provided by the invention, the solution regeneration heat exchanger and the dehumidification heat exchanger are additionally arranged on an air conditioner, so that the indoor humidity is independently controlled through a solution, and functions of refrigeration and dehumidification in summer and heating and humidification in winter can be realized.

Description

Humiture independent treating air-conditioning system and its control method
Technical field
The invention belongs to air-conditioning equipment field, more particularly, to a kind of humiture independent treating air-conditioning system and Its control method.
Background technology
Research is more both at home and abroad for solution dehumidification, and in field of air conditioning, the method that air fresh air dehumidification is commonly used has two Kind:A kind of for first pass through heat transferring medium by air be cooled to dew point then by dehumidifying after air carry out reheating It is delivered to room.Another is traditional solution dehumidification, and traditional solution dehumidification solution temperature is higher, After dehumidifying, air themperature is higher, needs to carry out cooling down by the air after dehumidifying to be delivered to room again.
A kind of new blower fan of the entitled independent temperature-humidity control of Chinese Patent Application No. 201410419810.0 Group discloses a kind of unit of independent temperature-humidity control, is dehumidified using solution, reuses chilled water coil Cooling, reaches the air themperature of needs, the elder generation belonging to traditional overheated dehumidifying cooling down again, causes the energy Waste, and can only dehumidify and can not humidify.
A kind of entitled humiture independent process of Chinese Patent Application No. 201210237771.3 purifies empty It adopts two-stage coil pipe series system to adjust unit to disclose a kind of independent temperature-humidity control system, processes respectively Air, two sections of coil pipes undertake latent heat load and sensible heat load respectively, system complex and can only dehumidifying, Bu Nengjia Wet.
Content of the invention
Therefore, the present invention provides a kind of humiture that indoor temperature and humidity can be independently controlled Independent treating air-conditioning system and its control method.
A kind of humiture independent treating air-conditioning system, including compressor, outdoor heat exchanger, indoor heat exchange Device, outdoor fan, indoor fan, temperature sensor and indoor humidity sensor, described compressor, Described outdoor heat exchanger and described indoor heat exchanger are sequentially connected in series and are formed loop, also include dehumidification cooling Heat exchanger, solution regenerator and remove wet heat exchanger, described dehumidification cooling heat exchanger is arranged at institute State indoor fan towards indoor side, and it is except wet heat exchanger and described with described to pass through pipeline respectively Indoor heat exchanger carries out heat exchange, and described solution regenerator is arranged at described outdoor fan near institute State indoor side, and carried out except wet heat exchanger and described outdoor heat exchanger with described by pipeline respectively Heat exchange.
It is provided with dehumidification cooling heat exchanger between described dehumidification cooling heat exchanger and described indoor heat exchanger to follow Ring water pump, and heat exchange is carried out by refrigerating medium.
It is provided with solution regenerator between described solution regenerator and described outdoor heat exchanger to follow Ring water pump, and heat exchange is carried out by refrigerating medium.
Described refrigerating medium is water.
Also include with described except damp and hot between described solution regenerator and described dehumidification cooling heat exchanger Solution pump and liquid inventory regulating valve that exchanger is connected by solution conduit, for dehumidifying in described solution conduit Solution.
Described dehumidification solution is lithium chloride solution.
A kind of control method of humiture independent treating air-conditioning system, including refrigeration thermic load processing controls Method, refrigeration humidity load process control method, heat thermic load process control method and heat humidity load Process control method.
Described refrigeration thermic load process control method includes:
Set setting time and the setting temperature difference that described indoor fan runs up;
Read indoor environment temperature, described indoor environment temperature is deducted the definition of room conditioning design temperature Poor for refrigeration Indoor Temperature;
The relatively more described refrigeration poor and described setting temperature difference of Indoor Temperature;
If described refrigeration Indoor Temperature difference is more than the described setting temperature difference, described indoor fan is controlled to transport at a high speed Turn and timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger recirculated water The flow of pump;
If described refrigeration Indoor Temperature difference is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan middling speed operating;
If described refrigeration Indoor Temperature difference is less than 0 DEG C, control described indoor fan low-speed running;
If described refrigeration Indoor Temperature difference is less than -1 DEG C, controls described indoor fan low-speed running and reduce institute State the flow of dehumidification cooling heat exchanger water circulating pump.
Described refrigeration humidity load process control method:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, described indoor environment temperature is deducted air-conditioning and sets Constant temperature degree be defined as freeze Indoor Temperature poor, by described indoor relative humidity deduct air-conditioning setting relative humidity Calculate indoor relative humidity differential in cool room;
Relatively more described refrigeration Indoor Temperature is poor and described to set the indoor relative humidity that freezes described in the temperature difference, comparison Difference and described setting relative humidity differential;
If described refrigeration Indoor Temperature difference is big more than the described setting temperature difference or described refrigeration interior relative humidity differential In described setting indoor relative humidity difference, then described liquid inventory regulating valve is opened to maximum;
If less than the described setting temperature difference and described refrigeration interior relative humidity differential is little for described refrigeration Indoor Temperature difference In described setting relative humidity difference, then described liquid inventory control valve opening is reduced.
Heat thermic load process control method to include:
Set setting time and the setting temperature difference that described indoor fan runs up;
Read indoor environment temperature, described interior set environment temperature is deducted the definition of room conditioning temperature Poor for heating Indoor Temperature;
The poor and described setting temperature difference of Indoor Temperature is heated described in relatively;
If the described Indoor Temperature difference that heats is less than the described setting temperature difference, described indoor fan is controlled to transport at a high speed Turn and timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger recirculated water The flow of pump;
If the described Indoor Temperature difference that heats is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan middling speed operating;
If the described Indoor Temperature difference that heats is less than 0 DEG C, control described indoor fan low-speed running;
If the described Indoor Temperature difference that heats is less than -1 DEG C, controls described indoor fan low-speed running and reduce institute State the flow of dehumidification cooling heat exchanger water circulating pump.
The described humidity load process control method that heats includes:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, described room conditioning design temperature is deducted room It is poor that interior ambient temperature is defined as heating Indoor Temperature, and described room conditioning setting rh value is deducted room Interior rh value is defined as heating indoor relative humidity differential;
Heat poor and described setting of Indoor Temperature described in relatively and heat indoor relative humidity described in the temperature difference, comparison Difference and described setting relative humidity differential;
Heat Indoor Temperature difference if described more than the described setting temperature difference or described to heat indoor relative humidity differential big In described setting relative humidity difference, then described liquid inventory regulating valve is opened to maximum;
Heat Indoor Temperature difference if described less than the described setting temperature difference and described to heat indoor relative humidity differential little In described setting relative humidity difference, then described liquid inventory control valve opening is reduced.
, as 2 DEG C, the described relative humidity difference that sets is as 10% for the described temperature difference that sets.
Humiture independent treating air-conditioning system and its control method that the present invention provides, by air-conditioning Install solution regenerator and dehumidification cooling heat exchanger additional so that carrying out to indoor humidity by solution Individually control, be capable of cooling in summer dehumidifying and winter heats the function of humidification.
Brief description
Fig. 1 is the system schematic of the humiture independent treating air-conditioning system that the present invention provides.
Specific embodiment
Below by specific embodiment and combine accompanying drawing to describe in detail.
A kind of humiture independent treating air-conditioning system, changes including compressor 1, outdoor heat exchanger 2, interior Hot device 3, outdoor fan 4, indoor fan 5, temperature sensor and indoor humidity sensor, described pressure Contracting machine 1, described outdoor heat exchanger 2 and described indoor heat exchanger 3 are sequentially connected in series and form loop, also Including dehumidification cooling heat exchanger 8, solution regenerator 9 and remove wet heat exchanger 10, described dehumidifying Cooling heat exchanger 8 is arranged at described indoor fan 5 towards indoor side, and respectively pass through pipeline with Described carry out heat exchange, described solution regeneration except wet heat exchanger 10 and described indoor heat exchanger 3 Device 9 is arranged at described outdoor fan 4 near described interior side, and is removed with described by pipeline respectively Wet heat exchanger 10 and described outdoor heat exchanger 2 carry out heat exchange.
It is provided with dehumidification cooling heat exchange between described dehumidification cooling heat exchanger 8 and described indoor heat exchanger 3 Device water circulating pump 81, and heat exchange is carried out by refrigerating medium.
It is provided with solution regeneration between described solution regenerator 9 and described outdoor heat exchanger 2 Device water circulating pump 91, and heat exchange is carried out by refrigerating medium.
Described refrigerating medium is water.
Also include removing with described between described solution regenerator 9 and described dehumidification cooling heat exchanger 8 Solution pump 101 and liquid inventory regulating valve 102 that wet heat exchanger 10 is connected by solution conduit, described It is dehumidification solution in solution conduit.
Described dehumidification solution is lithium chloride solution, and wherein, dehumidification solution is through dehumidification cooling heat exchanger 8 Temperature is 17 DEG C of room temperature, and dehumidification solution is 38 DEG C through solution regenerator 9 temperature, by except damp and hot Exchanger 10, reduces the solution temperature entering dehumidification cooling heat exchanger 8 import, increases entrance solution The temperature of regenerator 9 import, by setting except wet heat exchanger 10 had both reduced dehumidification cooling heat The thermic load of exchanger, reduces the heat needed for solution regenerator 9 again, has reached the mesh of energy-conservation 's.
A kind of control method of humiture independent treating air-conditioning system, including refrigeration thermic load processing controls Method, refrigeration humidity load process control method, heat thermic load process control method and heat humidity load Process control method.
Described refrigeration thermic load process control method includes:
Set setting time and the setting temperature difference that described indoor fan 5 runs up;
Read indoor environment temperature, refrigeration is calculated by described indoor environment temperature and air-conditioning design temperature The indoor temperature difference;
The relatively more described refrigeration poor and described setting temperature difference of Indoor Temperature;
If described refrigeration Indoor Temperature difference is more than the described setting temperature difference, control described indoor fan 5 at a high speed Operating timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger circulation The flow of water pump 81, if the room interior temperature difference, still above 2 DEG C, is exported using increasing vaporizer device Cold controls (refrigerant flow control, compressor 1 FREQUENCY CONTROL) wherein to export cold and controls water effluent amount It is controlled to limit priority, control refrigerant flow to take second place by controlling indoor electronic expansion valve opening, such as Fruit above two method all cannot increase vaporizer output cold, then pass through to adjust compressor 1 running frequency Reach and increase the purpose that cold controls;
If described refrigeration Indoor Temperature difference is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan 5 middling speed operatings;
If described refrigeration Indoor Temperature difference is less than 0 DEG C, control described indoor fan 5 low-speed running;
If described refrigeration Indoor Temperature difference is less than -1 DEG C, controls described indoor fan 5 low-speed running and subtract The flow of little described dehumidification cooling heat exchanger water circulating pump 81.
Described refrigeration humidity load process control method:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, set by described indoor environment temperature and air-conditioning Determine temperature computation refrigeration Indoor Temperature poor, relative humidity meter is set by described indoor relative humidity and air-conditioning Calculate the indoor relative humidity differential of refrigeration;
Relatively more described refrigeration Indoor Temperature is poor and described to set relative humidity difference of freezing described in the temperature difference, comparison With setting relative humidity differential;
If described refrigeration Indoor Temperature difference is big more than the described setting temperature difference or described refrigeration interior relative humidity differential In described setting indoor relative humidity difference, then described liquid inventory regulating valve 102 is opened to maximum;
If less than the described setting temperature difference and described refrigeration interior relative humidity differential is little for described refrigeration Indoor Temperature difference In described setting relative humidity difference, then described liquid inventory regulating valve 102 aperture is reduced.
The described thermic load process control method that heats includes:
Set setting time and the setting temperature difference that described indoor fan 5 runs up;
Read indoor environment temperature, calculated by described indoor environment temperature and air-conditioning design temperature and heat The indoor temperature difference;
The poor and described setting temperature difference of Indoor Temperature is heated described in relatively;
If the described Indoor Temperature difference that heats is less than the described setting temperature difference, control described indoor fan 5 at a high speed Operating timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger circulation The flow of water pump 81, if room heats Indoor Temperature difference still above 2 DEG C, using increasing, condenser is defeated Go out thermal methods and be controlled (refrigerant flow control, compressor 1 FREQUENCY CONTROL) wherein quantity of heat given up control Controlling the water circulation effluent amount is controlled to limit priority, controls cold-producing medium stream by controlling indoor electronic expansion valve opening Amount is taken second place, if above two method all cannot increase condenser quantity of heat given up, by adjusting compressor 1 Running frequency reaches and increases the purpose that heat controls;
If the described Indoor Temperature difference that heats is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan 5 middling speed operatings;
If the described Indoor Temperature difference that heats is less than 0 DEG C, control described indoor fan 5 low-speed running;
If the described Indoor Temperature difference that heats is less than -1 DEG C, controls described indoor fan 5 low-speed running and subtract The flow of little described dehumidification cooling heat exchanger water circulating pump 81.
The described humidity load process control method that heats includes:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, set by described indoor environment temperature and air-conditioning Determining temperature computation, to heat Indoor Temperature poor, sets relative humidity by described indoor relative humidity values and air-conditioning It is poor that value calculating heats indoor humidity;
Heat poor and described setting of Indoor Temperature described in relatively and heat indoor relative humidity described in the temperature difference, comparison Difference and setting relative humidity differential;
Heat Indoor Temperature difference if described more than the described setting temperature difference or described to heat indoor relative humidity differential big In described setting relative humidity difference, then described liquid inventory regulating valve 102 is opened to maximum;
Heat Indoor Temperature difference if described less than the described setting temperature difference and described to heat indoor relative humidity differential little In described setting relative humidity difference, then described liquid inventory regulating valve 102 aperture is reduced.
, as 2 DEG C, the described relative humidity difference that sets is as 10% for the described temperature difference that sets.
Humiture independent treating air-conditioning system and its control method that the present invention provides, by air-conditioning Install solution regenerator 9 and dehumidification cooling heat exchanger 8 additional so that entering to indoor humidity by solution Row individually controls, and is capable of cooling in summer dehumidifying and winter heats the function of humidification.
It is only the preferred embodiment of the present invention by the above it is noted that for the art Those of ordinary skill for, under the premise without departing from the principles of the invention, some changing can also be made Enter and retouch, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (12)

1. a kind of humiture independent treating air-conditioning system, changes including compressor, outdoor heat exchanger, interior Hot device, outdoor fan, indoor fan, temperature sensor and indoor humidity sensor, described compressor, Described outdoor heat exchanger and described indoor heat exchanger be sequentially connected in series and form loop it is characterised in that:Also Including dehumidification cooling heat exchanger, solution regenerator with remove wet heat exchanger, described dehumidification cooling changes Hot device is arranged at described indoor fan towards indoor side, and passes through pipeline respectively with described except damp and hot Exchanger and described indoor heat exchanger carry out heat exchange, and described solution regenerator is arranged at described room External fan is near described interior side, and passes through pipeline respectively with described except wet heat exchanger with described room External heat exchanger carries out heat exchange.
2. humiture independent treating air-conditioning system according to claim 1 it is characterised in that:Institute State and between dehumidification cooling heat exchanger and described indoor heat exchanger, be provided with dehumidification cooling heat exchanger recirculated water Pump, and heat exchange is carried out by refrigerating medium.
3. humiture independent treating air-conditioning system according to claim 1 it is characterised in that:Institute State and between solution regenerator and described outdoor heat exchanger, be provided with solution regenerator recirculated water Pump, and heat exchange is carried out by refrigerating medium.
4. the humiture independent treating air-conditioning system according to Claims 2 or 3 it is characterised in that: Described refrigerating medium is water.
5. humiture independent treating air-conditioning system according to claim 1 it is characterised in that:Institute State and also include with described except wet heat exchanger between solution regenerator and described dehumidification cooling heat exchanger The solution pump connected by solution conduit and liquid inventory regulating valve, are dehumidification solution in described solution conduit.
6. humiture independent treating air-conditioning system according to claim 5 it is characterised in that:Institute Stating dehumidification solution is lithium chloride solution.
7. the control of the humiture independent treating air-conditioning system any one of a kind of claim 1 to 6 Method processed it is characterised in that:Process control including refrigeration thermic load process control method, refrigeration humidity load Method processed, heat thermic load process control method and heat humidity load process control method.
8. control method according to claim 7 it is characterised in that:At described refrigeration thermic load Reason control method includes:
Set setting time and the setting temperature difference that described indoor fan runs up;
Read indoor environment temperature, described indoor environment temperature is deducted the definition of room conditioning design temperature Poor for refrigeration Indoor Temperature;
The relatively more described refrigeration poor and described setting temperature difference of Indoor Temperature;
If described refrigeration Indoor Temperature difference is more than the described setting temperature difference, described indoor fan is controlled to transport at a high speed Turn and timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger recirculated water The flow of pump;
If described refrigeration Indoor Temperature difference is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan middling speed operating;
If described refrigeration Indoor Temperature difference is less than 0 DEG C, control described indoor fan low-speed running;
If described refrigeration Indoor Temperature difference is less than -1 DEG C, controls described indoor fan low-speed running and reduce institute State the flow of dehumidification cooling heat exchanger water circulating pump.
9. control method according to claim 7 it is characterised in that:At described refrigeration humidity load Reason control method:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, described indoor environment temperature is deducted air-conditioning and sets Constant temperature degree be defined as freeze Indoor Temperature poor, by described indoor relative humidity deduct air-conditioning setting relative humidity It is defined as the indoor relative humidity differential that freezes;
Relatively more described refrigeration Indoor Temperature is poor and described to set the indoor relative humidity that freezes described in the temperature difference, comparison Difference and described setting relative humidity differential;
If described refrigeration Indoor Temperature difference is big more than the described setting temperature difference or described refrigeration interior relative humidity differential In described setting indoor relative humidity difference, then described liquid inventory regulating valve is opened to maximum;
If less than the described setting temperature difference and described refrigeration interior relative humidity differential is little for described refrigeration Indoor Temperature difference In described setting relative humidity difference, then described liquid inventory control valve opening is reduced.
10. control method according to claim 7 it is characterised in that:Heat thermic load to process Control method includes:
Set setting time and the setting temperature difference that described indoor fan runs up;
Read indoor environment temperature, described interior set environment temperature is deducted the definition of room conditioning temperature Poor for heating Indoor Temperature;
The poor and described setting temperature difference of Indoor Temperature is heated described in relatively;
If the described Indoor Temperature difference that heats is less than the described setting temperature difference, described indoor fan is controlled to transport at a high speed Turn and timing, if the time is more than described setting time, increase described dehumidification cooling heat exchanger recirculated water The flow of pump;
If the described Indoor Temperature difference that heats is in 0 DEG C and the described setting temperature difference between, control described interior wind Fan middling speed operating;
If the described Indoor Temperature difference that heats is less than 0 DEG C, control described indoor fan low-speed running;
If the described Indoor Temperature difference that heats is less than -1 DEG C, controls described indoor fan low-speed running and reduce institute State the flow of dehumidification cooling heat exchanger water circulating pump.
11. control methods according to claim 7 it is characterised in that:Described heat humidity load Process control method includes:
Set indoor relative humidity difference and set the temperature difference;
Read indoor environment temperature and indoor relative humidity, described room conditioning design temperature is deducted room It is poor that interior ambient temperature is defined as heating Indoor Temperature, and described room conditioning setting rh value is deducted room Interior rh value is defined as heating indoor relative humidity differential;
Heat poor and described setting of Indoor Temperature described in relatively and heat indoor relative humidity described in the temperature difference, comparison Difference and described setting relative humidity differential;
Heat Indoor Temperature difference if described more than the described setting temperature difference or described to heat indoor relative humidity differential big In described setting relative humidity difference, then described liquid inventory regulating valve is opened to maximum;
Heat Indoor Temperature difference if described less than the described setting temperature difference and described to heat indoor relative humidity differential little In described setting relative humidity difference, then described liquid inventory control valve opening is reduced.
12. control methods any one of according to Claim 8 to 11 it is characterised in that:Institute State and set the temperature difference as 2 DEG C, the described relative humidity difference that sets is as 10%.
CN201510466499.XA 2015-07-31 2015-07-31 Temperature and humidity independent processing air conditioning system and control method thereof Active CN106403143B (en)

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