CN106839252B - A kind of dehumidification control method, device, system and air-conditioning - Google Patents

A kind of dehumidification control method, device, system and air-conditioning Download PDF

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CN106839252B
CN106839252B CN201510888974.2A CN201510888974A CN106839252B CN 106839252 B CN106839252 B CN 106839252B CN 201510888974 A CN201510888974 A CN 201510888974A CN 106839252 B CN106839252 B CN 106839252B
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relative humidity
threshold value
temperature
moisture requirement
setting
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CN106839252A (en
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王芳
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Vertiv Tech Co Ltd
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Vertiv Tech Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a kind of dehumidification control method, device, system and air-conditionings to improve the practicability of air-conditioning so that air-conditioning can be suitable for the occasion that a variety of relative humidity require.Dehumidification control method includes: the return air relative humidity according to indoor current relative humidity and setting, determines moisture requirement；As the return air relative humidity H of setting0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes the part coil pipe of evaporator；As the return air relative humidity H of setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporating temperature；As the return air relative humidity H of setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part coil pipe of evaporator, and controls electronic throttle element reduction evaporating temperature；Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.

Description

A kind of dehumidification control method, device, system and air-conditioning
Technical field
The present invention relates to air conditioner technical field more particularly to a kind of dehumidification control method, device, system and air-conditionings.
Background technique
High-accuracy constant-temperature constant-humidity air-conditioner is mainly used in papermaking, weaving, pharmacy, tobacco and electronics etc. and compares temperature and humidity In the laboratory in sensitive field, ± 0.1 DEG C reachable to the control precision of temperature of this kind of air-conditioning, to the control precision of relative humidity Reachable ± 2%.
High-accuracy constant-temperature constant-humidity air-conditioner is main to be realized using the method for reducing evaporator area fastly in dehumidification process Speed, efficient dehumidifying.In the laboratory that relative humidity requires lower (≤40%), it can be reduced using evaporator area more The air-conditioning of design, this kind of air conditioner dehumidification amount is big, can satisfy laboratory to the lower requirement of relative humidity, but this kind of air-conditioning is answered When laboratory for relative humidity more demanding (>=60%), the actual moisture removal of air-conditioning can be greater than the moisture removal of demand, empty Tune can continue into dehumidifying and exit dehumidifying, cause humid control unstable；Similarly, more demanding (>=60%) in relative humidity Laboratory in, the air-conditioning of less design can be reduced using evaporator area, this kind of air conditioner dehumidification amount is small, can satisfy experiment Room is to the higher requirement of relative humidity, but this kind of air conditioning applications are when relative humidity requires the laboratory of lower (≤40%), The actual moisture removal of air-conditioning can be less than the moisture removal of demand, can not effectively control the humidity precision in laboratory.
Defect of the existing technology is, for the laboratory that different relative humidity require, needs to configure using different The air-conditioning of dehumidification design, this makes the applicable situation of air-conditioning relatively simple.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of dehumidification control method, device, system and air-conditioning are provided, so that air-conditioning can It is applicable in the occasion that a variety of relative humidity require, improves the practicability of air-conditioning.
The embodiment of the present invention provides a kind of dehumidification control method, comprising:
According to the return air relative humidity of indoor current relative humidity and setting, moisture requirement is determined；
As the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes evaporation The part coil pipe of device；
As the return air relative humidity H of the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces Evaporating temperature；
As the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes evaporator Part coil pipe, and control electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
In the technical solution of the embodiment of the present invention, air-conditioning can be according to the return air phase of indoor current relative humidity and setting To humidity, moisture requirement is determined, according to moisture requirement intelligent selection dehumanization method, compared with prior art, air-conditioning can be applicable in more The occasion that kind relative humidity requires, the practicability of air-conditioning are higher.
Based on identical inventive concept, the embodiment of the invention also provides a kind of dehumidification control devices, including
Acquiring unit, for obtaining the indoor current relative humidity of humidity sensor detection；
Determination unit determines moisture requirement for the return air relative humidity according to the current relative humidity and setting；
Control unit, for working as the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤H5When, control electricity The part coil pipe of magnet valve closing evaporator；And the return air relative humidity H when the setting0Meet: H0< H1And 0 < Hd≤H2When, Controlling electronic throttle element reduces evaporating temperature；And the return air relative humidity H when the setting0Meet: H0< H1And Hd> H5 When, control solenoid valve closes the part coil pipe of evaporator, and controls electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
Using the technical solution of the embodiment device, air-conditioning can be applicable in the occasion that a variety of relative humidity require, air-conditioning Practicability is higher.
Based on identical inventive concept, the embodiment of the invention also provides a kind of dehumidification control systems, including
Compressor, condenser, electronic throttle element and the evaporation of closed circulation are sequentially connected and formed by refrigerant pipeline Device, and the solenoid valve for closing evaporator section coil pipe；
For detecting the humidity sensor of indoor current relative humidity；
Controller is connect with solenoid valve, electronic throttle element and humidity sensor signal respectively, for when the setting Return air relative humidity H0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes the part coil pipe of evaporator；And when described The return air relative humidity H of setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporating temperature；And As the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part coil pipe of evaporator, And control electronic throttle element reduction evaporating temperature；Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
Using the technical solution of the embodiment system, air-conditioning can be applicable in the occasion that a variety of relative humidity require, air-conditioning Practicability is higher.
The embodiment of the invention also provides a kind of air-conditionings, including dehumidification control system described in aforementioned any technical solution. The air-conditioning can be applicable in the occasion that a variety of relative humidity require, and practicability is higher.
Detailed description of the invention
Fig. 1 a is dehumidification control method of embodiment of the present invention flow chart；
Fig. 1 b is one embodiment of the invention dehumidification control method flow chart；
Fig. 2 is further embodiment of this invention dehumidification control method flow chart；
Fig. 3 is another embodiment of the present invention dehumidification control method flow chart；
Fig. 4 is yet another embodiment of the invention dehumidification control method flow chart；
Fig. 5 is dehumidification control device of embodiment of the present invention schematic diagram.
Appended drawing reference of the embodiment of the present invention:
10- acquiring unit；
11- determination unit；
12- control unit.
Specific embodiment
In order to enable air-conditioning to be applicable in the occasion that a variety of relative humidity require, the practicability of air-conditioning is improved, the present invention is implemented Example provides a kind of dehumidification control method, device, system and air-conditioning.
The embodiment of the invention provides a kind of dehumidification control methods, as shown in Figure 1a, comprising:
Step 501: according to the return air relative humidity of indoor current relative humidity and setting, determining moisture requirement；
Step 502: as the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve Close the part coil pipe of evaporator；
Step 503: as the return air relative humidity H of the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle Element reduces evaporating temperature；
Step 504: as the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve is closed The part coil pipe of evaporator, and control electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
Dehumidification control method provided in an embodiment of the present invention, further includes following steps:
Work as H0≥H1, and Hd> H3When, control solenoid valve closes the part coil pipe of evaporator；
Work as H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporating temperature；
Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
In a preferred embodiment of the invention, dehumidification control method further includes following steps:
According to the return air temperature temperature demand of indoor Current Temperatures and setting；
Work as Td≥T6And Hd≥H6When, control electronic throttle element reduces evaporating temperature；
Work as Td< T6And/or Hd< H6, and Hd≥TdWhen, execution judges H0Whether H is less than1The step of；
Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td>=100%, Hd>=100%, TdFor Temperature requirements.It please refers to shown in Fig. 1 b, Fig. 1 b is a kind of specific steps for dehumidification control method that one embodiment of the invention provides:
Step 101: obtaining the indoor current relative humidity of humidity sensor detection；
Step 102: according to the return air relative humidity of current relative humidity and setting, determining moisture requirement；
Step 103: judging the return air relative humidity of setting whether less than the first relative humidity threshold value；If so, executing step Rapid 104；If not, executing step 108；
Step 104: judging whether moisture requirement is greater than the second moisture requirement threshold value；If so, step 111 is executed, if It is no, execute step 106；
Step 111: judge whether moisture requirement is greater than the 5th moisture requirement threshold value, if so, step 110 is executed, if It is no, execute step 105.
Step 105: control solenoid valve closes the part coil pipe of evaporator；
Step 106: judging whether moisture requirement is greater than zero and no more than the second moisture requirement threshold value；If so, executing step Rapid 107；
Step 107: control electronic throttle element reduces evaporating temperature；
Step 108: judging whether moisture requirement is greater than third moisture requirement threshold value；If so, step 105 is executed, if It is no, execute step 109；
Step 109: judging whether moisture requirement is not more than third moisture requirement threshold value, and be greater than the 4th moisture requirement threshold Value, if so, executing step 107；
Step 110: control solenoid valve closes the part coil pipe of evaporator, and controls electronic throttle element and reduce and evaporate temperature Degree.
In embodiments of the present invention, the concrete type of humidity sensor is unlimited, such as can be electric resistance moisture sensor Or capacitance type humidity sensor.After setting return air relative humidity on air-conditioning, pass through the return air relative humidity of setting and room Interior current relative humidity can determine moisture requirement, specific calculation formula are as follows:
Moisture requirement=(the return air relative humidity of indoor current relative humidity-setting)/humidity precision
Wherein, the concrete type of solenoid valve is unlimited, such as can be electromagnetism four-way reversing valve, bidirectional electromagnetic valve and Special electric Magnet valve by-passing valve etc..When solenoid valve in the closure state, the part coil pipe of evaporator is in close state, and can be subtracted at this time Small more evaporator area, using this kind of dehumidification design, moisture removal is larger, and compares other dehumidification designs, in identical dehumidifying In the case where amount, sensible heat is smaller.
The concrete type of electronic throttle element is also unlimited, such as can be electric expansion valve, and electric expansion valve can pass through The method for increasing suction superheat reduces evaporating temperature, or directly reduces evaporating temperature, realizes effect on moisture extraction with this.This kind Dehumidification design moisture removal is smaller, and compares other dehumidification designs, and in the case where identical moisture removal, sensible heat is larger.
In the above embodiment of the invention, the first relative humidity threshold value, the second moisture requirement threshold value, third moisture requirement Threshold value, the 4th moisture requirement threshold value, the 5th moisture requirement threshold value, the 6th moisture requirement threshold value and the 6th temperature requirements threshold value are equal It is not preset parameter, can be adjusted according to practical situations, it is notable that no matter under which kind of applicable cases, Third moisture requirement threshold value is greater than the 4th moisture requirement threshold value, and third moisture requirement threshold value is greater than the second moisture requirement threshold value, the Five moisture requirement threshold values are greater than the second moisture requirement threshold value, and the 6th moisture requirement threshold value is not less than 100%, the 6th temperature requirements threshold Value is not less than 100%.
From step 111 to step 110 it is not difficult to find out that, setting return air relative humidity less than the first relative humidity threshold value and In the case that moisture requirement is greater than the 5th moisture requirement threshold value, i.e. the bigger situation of moisture requirement, using two kinds of dehumidification designs The method executed together not only controls the part coil pipe that solenoid valve closes evaporator, also while controlling electronic throttle element drop Low evaporating temperature.The method for taking two kinds of dehumidification designs to execute together can not only efficiently control indoor humidity requirement, may be used also To efficiently control room temperature requirement.
In a preferred embodiment of the invention, as shown in figure 3, dehumidification control method is further comprising the steps of:
Step 301: obtaining the indoor Current Temperatures of temperature sensor detection；
Step 302: according to the return air temperature temperature demand of Current Temperatures and setting；
Step 303: before whether the return air relative humidity for judging setting is less than the first relative humidity threshold value, judging temperature Whether demand is not less than the 6th temperature requirements threshold value and moisture requirement is not less than the 6th moisture requirement threshold value；If so, executing step Rapid 107, if not, executing step 304；
Step 107: control electronic throttle element reduces evaporating temperature；
Step 304: judging whether moisture requirement is not less than temperature requirements, if so, executing step 103.
Wherein, the concrete type of temperature sensor is unlimited, such as can be thermocouple temperature sensor, thermistor-type Temperature sensor, resistance temperature detector formula temperature sensor or IC temperature sensor etc..When setting return air on air-conditioning It, can be with temperature demand, specific calculation formula by the return air temperature and indoor Current Temperatures of setting after temperature are as follows:
Temperature requirements=(return air temperature of indoor Current Temperatures-setting)/temperature accuracy
In the above-described embodiments, it before executing step 103, executes and judges moisture requirement and temperature requirements size relation Operation, according to the size relation of moisture requirement and temperature requirements, further selection is more suitable for the dehumanization method of indoor environment, uses The air-conditioning of this kind of dehumidification control method can be in different occasion intelligent selection dehumanization methods, and practicability is stronger.
We only enumerate two under concrete application occasion below, and the dehumidification control method of the embodiment of the present invention is taken to carry out The detailed process of dehumidifying:
In the embodiment shown in Figure 2, we set, indoor current relative humidity be H, the return air relative humidity set as H0, humidity precision is Ha, the first relative humidity threshold value is 50%, and the second moisture requirement threshold value is 50%, third moisture requirement threshold value It is 200%, the 4th moisture requirement threshold value is 50%, and the 5th moisture requirement threshold value is 200%, and in the present embodiment, air-conditioning removes Wet control method step specifically:
Step 201: obtaining the indoor current relative humidity H of humidity sensor detection；
Step 202: according to the return air relative humidity H of current relative humidity H and setting0, determine moisture requirement Hd, wherein Hd =(H-H0)/Ha；
Step 203: judging H0Whether less than 50%；If so, step 204 is executed, if not, executing step 208；
Step 204: judging HdWhether 50% is greater than；If so, step 211 is executed, if not, executing step 206；
Step 211: judging HdWhether 200% is greater than, if so, step 210 is executed, if not, executing step 205.
Step 205: control solenoid valve closes the part coil pipe of evaporator；
Step 206: judging HdWhether it is greater than 0 and is not more than 50%；If so, executing step 207；
Step 207: control electronic throttle element reduces evaporating temperature；
Step 208: judging HdWhether 200% is greater than, if so, step 205 is executed, if not, executing step 209；
Step 209: judging HdNo more than 200% and it is greater than 50%, if so, executing step 207；
Step 210:；It controls solenoid valve and closes the part coil pipe of evaporator, and control electronic throttle element to reduce evaporation temperature Degree.
In the embodiment as shown in fig.4, we set, and indoor Current Temperatures are T, and the return air temperature set is T0, temperature Degree precision is Ta, temperature requirements Td, the 6th moisture requirement threshold value is 100%, and the 6th temperature requirements threshold value is 100%, in this reality It applies in example, the dehumidification control method step of air-conditioning specifically:
Step 401: obtaining the indoor Current Temperatures T of temperature sensor detection；
Step 402: according to the return air temperature T of Current Temperatures T and setting0Temperature demand Td, wherein Td=(T-T0)/ Ta；
Step 403: judging H0Before whether less than the first relative humidity threshold value, T is judgeddWhether 100% and H is not less thand Not less than 100%, if so, step 404 is executed, if not, executing step 405；
Step 404: control electronic throttle element reduces evaporating temperature；
Step 405: judging moisture requirement HdWhether temperature requirements T is not less thand；If so, executing step 406；
Step 406: judging the return air relative humidity of setting whether less than the first relative humidity threshold value.
It is dehumidified using method described in the embodiment of the present invention to air-conditioning, air-conditioning can be according to indoor humidity demand intelligence Ground selection dehumanization method can be suitable for a variety of relative humidity using the air-conditioning of this kind of dehumidification control method compared with prior art It is required that occasion, the practicability of air-conditioning is higher.
As shown in figure 5, being based on identical inventive concept, the embodiment of the invention also provides a kind of dehumidification control device, packets It includes:
Acquiring unit 10, for obtaining the indoor current relative humidity of humidity sensor detection；
Determination unit 11 determines moisture requirement for the return air relative humidity according to current relative humidity and setting；
Control unit 12, control unit, for working as the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤ H5When, control solenoid valve closes the part coil pipe of evaporator；And the return air relative humidity H when the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporating temperature；And the return air relative humidity H when the setting0Meet: H0 < H1And Hd> H5When, control solenoid valve closes the part coil pipe of evaporator, and controls electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
In apparatus of the present invention embodiment, control unit 12 is also used to work as H0≥H1, and Hd> H3When, control solenoid valve closes Close the part coil pipe of evaporator；Work as H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporating temperature；
Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
In a preferred embodiment, acquiring unit 10 are also used to obtain the indoor Current Temperatures of temperature sensor detection； Determination unit 11 is also used to the return air temperature according to Current Temperatures and setting, temperature demand；Control unit 12, is also used to Work as Td≥T6And Hd≥H6When, control electronic throttle element reduces evaporating temperature；And work as Td< T6And/or Hd< H6, and Hd≥Td When, execution judges H0Whether H is less than1The step of；Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td >=100%, Hd>=100%, TdFor temperature requirements.
Using the technical solution of the embodiment device, air-conditioning can be applicable in the occasion that a variety of relative humidity require, air-conditioning Practicability is higher.
Based on identical inventive concept, the embodiment of the invention also provides a kind of dehumidification control systems, comprising:
Compressor, condenser, electronic throttle element and the evaporation of closed circulation are sequentially connected and formed by refrigerant pipeline Device, and the solenoid valve for closing evaporator section coil pipe；For detecting the humidity sensor of indoor current relative humidity；
Controller is connect with solenoid valve, electronic throttle element and humidity sensor signal respectively, for when the setting Return air relative humidity H0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes the part coil pipe of evaporator；And when described The return air relative humidity H of setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporating temperature；Work as institute State the return air relative humidity H of setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part coil pipe of evaporator, and controls Electronic throttle element processed reduces evaporating temperature；Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement.
In the technical solution of the embodiment of the present invention, the concrete type of electronic throttle element is unlimited, such as can be swollen for electronics Swollen valve.The concrete type of compressor is also unlimited, such as can be frequency-changeable compressor, constant speed compressor or digital compressor etc. Deng, it is preferred to use frequency-changeable compressor.
Wherein, controller is also used to work as H0≥H1, and Hd> H3When, control solenoid valve closes the part coil pipe of evaporator；When H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporating temperature；
Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
In a preferred embodiment of the invention, dehumidification control system further include:
For detecting the temperature sensor of indoor Current Temperatures；
Wherein, controller is connect with temperature sensor signal, and controller is also used to work as Td≥T6And Hd≥H6When, control electricity Sub- restricting element reduces evaporating temperature；And work as Td< T6And/or Hd< H6, and Hd≥TdWhen, execution judges H0Whether H is less than1's Step；Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td>=100%, Hd>=100%, TdFor temperature Degree demand.
Using the technical solution of the embodiment system, air-conditioning can be applicable in the occasion that a variety of relative humidity require, air-conditioning Practicability is higher.
Based on identical inventive concept, the embodiment of the invention also provides a kind of air-conditionings, including any of the above-described technical side Dehumidification control system described in case.The air-conditioning can be applicable in the occasion that a variety of relative humidity require, and practicability is higher.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (12)

1. a kind of dehumidification control method characterized by comprising
According to the return air relative humidity of indoor current relative humidity and setting, moisture requirement is determined；
As the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes evaporator Part coil pipe；
As the return air relative humidity H of the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporation Temperature；
As the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part of evaporator Coil pipe, and control electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement, moisture requirement=(the return air relative humidity of indoor current relative humidity-setting)/humidity precision.
2. the method as described in claim 1, which is characterized in that further include:
Work as H0≥H1, and Hd> H3When, control solenoid valve closes the part coil pipe of evaporator；
Work as H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporating temperature；
Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
3. method according to claim 1 or 2, which is characterized in that further include:
According to the return air temperature temperature demand of indoor Current Temperatures and setting；
Work as Td≥T6And Hd≥H6When, control electronic throttle element reduces evaporating temperature；
Work as Td< T6And/or Hd< H6, and Hd≥TdWhen, execution judges H0Whether H is less than1The step of；
Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td>=100%, Hd>=100%, TdFor temperature Demand, temperature requirements=(return air temperature of indoor Current Temperatures-setting)/temperature accuracy.
4. a kind of dehumidification control device characterized by comprising
Acquiring unit, for obtaining the indoor current relative humidity of humidity sensor detection；
Determination unit determines moisture requirement for the return air relative humidity according to the current relative humidity and setting；
Control unit, for working as the return air relative humidity H of the setting0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve Close the part coil pipe of evaporator；And
As the return air relative humidity H of the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporation Temperature；
As the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part of evaporator Coil pipe, and control electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement, moisture requirement=(the return air relative humidity of indoor current relative humidity-setting)/humidity precision.
5. device as claimed in claim 4, which is characterized in that described control unit is also used to
Work as H0≥H1, and Hd> H3When, control solenoid valve closes the part coil pipe of evaporator；
Work as H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporating temperature；
Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
6. device as claimed in claim 4, which is characterized in that
The acquiring unit is also used to obtain the indoor Current Temperatures of temperature sensor detection；
The determination unit is also used to the return air temperature according to the Current Temperatures and setting, temperature demand；
Described control unit is also used to work as Td≥T6And Hd≥H6When, control electronic throttle element reduces evaporating temperature；And work as Td< T6And/or Hd< H6, and Hd≥TdWhen, execution judges H0Whether H is less than1The step of；
Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td>=100%, Hd>=100%, TdFor temperature Demand, temperature requirements=(return air temperature of indoor Current Temperatures-setting)/temperature accuracy.
7. a kind of dehumidification control system characterized by comprising
Compressor, condenser, electronic throttle element and the evaporator of closed circulation are sequentially connected and formed by refrigerant pipeline, with And the solenoid valve for closing evaporator section coil pipe；
For detecting the humidity sensor of indoor current relative humidity；
Controller is connect with solenoid valve, electronic throttle element and humidity sensor signal respectively, and the return air for working as setting is opposite Humidity H0Meet: H0< H1And H2< Hd≤H5When, control solenoid valve closes the part coil pipe of evaporator；And
As the return air relative humidity H of the setting0Meet: H0< H1And 0 < Hd≤H2When, control electronic throttle element reduces evaporation Temperature；And
As the return air relative humidity H of the setting0Meet: H0< H1And Hd> H5When, control solenoid valve closes the part of evaporator Coil pipe, and control electronic throttle element reduction evaporating temperature；
Wherein, H1For the first relative humidity threshold value, H2For the second moisture requirement threshold value, H5For the 5th moisture requirement threshold value, and H5> H2, HdFor moisture requirement, moisture requirement=(the return air relative humidity of indoor current relative humidity-setting)/humidity precision.
8. system as claimed in claim 7, which is characterized in that the controller is also used to work as H0≥H1, and Hd> H3When, control Solenoid valve processed closes the part coil pipe of evaporator；Work as H0≥H1, and H4< Hd≤H3When, control electronic throttle element reduces evaporation temperature Degree；Wherein, H3For third moisture requirement threshold value, H4For the 4th moisture requirement threshold value, and H3> H2, H3> H4。
9. system as claimed in claim 7 or 8, which is characterized in that further include:
For detecting the temperature sensor of indoor Current Temperatures；
The controller is connect with the temperature sensor signal, and the controller is also used to work as Td≥T6And Hd≥H6When, control Electronic throttle element reduces evaporating temperature；And work as Td< T6And/or Hd< H6, and Hd≥TdWhen, execution judges H0Whether H is less than1 The step of；Wherein, T6For the 6th temperature requirements threshold value, H6For the 6th moisture requirement threshold value, Td>=100%, Hd>=100%, TdFor Temperature requirements, temperature requirements=(return air temperature of indoor Current Temperatures-setting)/temperature accuracy.
10. system as claimed in claim 7, which is characterized in that the electronic throttle element includes electric expansion valve.
11. system as claimed in claim 7, which is characterized in that the compressor include frequency-changeable compressor, constant speed compressor or Person's digital compressor.
12. a kind of air-conditioning, which is characterized in that including the described in any item dehumidification control systems of such as claim 7~11.
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