CN104566784A - Control method and device for dehumidifier and dehumidifier - Google Patents
Control method and device for dehumidifier and dehumidifier Download PDFInfo
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- CN104566784A CN104566784A CN201410767969.1A CN201410767969A CN104566784A CN 104566784 A CN104566784 A CN 104566784A CN 201410767969 A CN201410767969 A CN 201410767969A CN 104566784 A CN104566784 A CN 104566784A
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- 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
- F24F3/12—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 treatment of the air otherwise than by heating and cooling
- F24F3/14—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 treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Drying Of Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method for a dehumidifier. The method comprises the following steps: detecting the temperature of a dry ball in the dehumidifier, the environmental relative humidity and the temperature of an evaporator in the dehumidifier; calculating a dew point temperature according to the temperature of the dry ball and the environmental relative humidity; and controlling the frequency of a compressor of the dehumidifier according to the dew point temperature and the temperature of the evaporator. Through the use of the control method disclosed by the embodiment of the invention, increasing the frequency or decreasing the frequency of the compressor are determined according to the dew point temperature and the temperature of the evaporator, the situation that the dehumidifier operates in a higher frequency in a low-humidity environment can be effectively avoided, so that the purpose of saving electricity is achieved, and the energy efficiency of the dehumidifier is improved. The invention further discloses a control device for the dehumidifier and the dehumidifier with the control device.
Description
Technical field
The present invention relates to living electric apparatus technical field, particularly relate to a kind of control method of dehumidifier, device and there is the dehumidifier of this control device.
Background technology
At present, the control method of existing frequency conversion dehumidifier is generally: under the operating mode of continuous dehumidifying pattern, compressor under general environment in dehumidifier runs with high-frequency, when ambient humidity reduces, dew-point temperature and the water capacity of air all reduce, and moisture removal also declines, but, now compressor still runs with upper frequency, thus causes complete machine efficiency to reduce.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technical problem at least to a certain extent.
For this reason, first object of the present invention is the control method proposing a kind of dehumidifier.The method can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reaches the object of power saving, thus improves the efficiency of dehumidifier.
Second object of the present invention is the control device proposing a kind of dehumidifier.
3rd object of the present invention is to propose a kind of dehumidifier.
To achieve these goals, the control method of the dehumidifier of first aspect present invention embodiment, comprising: the temperature of evaporimeter in S1, the temperature detecting dry bulb in dehumidifier, envionmental humidity and described dehumidifier; S2, calculate dew-point temperature according to the temperature of described dry bulb and described envionmental humidity; And S3, to control according to the compressor frequency of temperature to described dehumidifier of described dew-point temperature and described evaporimeter.
According to the control method of the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier can be detected, the temperature of evaporimeter in envionmental humidity and dehumidifier, and calculate dew-point temperature according to the temperature of dry bulb and envionmental humidity, and control according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
According to one embodiment of present invention, described step S3 specifically comprises: S31, calculate described dew-point temperature and described evaporimeter temperature between temperature difference; If the described temperature difference of S32 is greater than preset temperature threshold value, then keep described compressor frequency constant; And if the described temperature difference of S33 is less than or equal to described preset temperature threshold value, then improve described compressor frequency.
According to one embodiment of present invention, before described step S33, described control method also comprises: whether the ongoing frequency judging described compressor is maximum operating frequency; If be not described maximum operating frequency, then perform described step S33; If be described maximum operating frequency, then the frequency adjusting described compressor is down to lowest operating frequency, and repeats described step S1-S3.Dehumidifier power reduction can be made like this, reduce energy loss.
According to one embodiment of present invention, described preset temperature threshold value is 0-5 degree.
According to one embodiment of present invention, before described step S1, described control method also comprises: judge whether the working time of described dehumidifier is greater than preset time threshold; If be greater than described preset time threshold, then perform described step S1.
To achieve these goals, the control device of the dehumidifier of second aspect present invention embodiment, detection module, for detecting the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and described dehumidifier; Computing module, for calculating dew-point temperature according to the temperature of described dry bulb and described envionmental humidity; And control module, for controlling according to the compressor frequency of temperature to described dehumidifier of described dew-point temperature and described evaporimeter.
According to the control device of the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier is detected by detection module, the temperature of evaporimeter in envionmental humidity and dehumidifier, computing module calculates dew-point temperature according to the temperature of dry bulb and envionmental humidity, control module controls according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
According to one embodiment of present invention, described control module comprises: computing unit, for calculate described dew-point temperature and described evaporimeter temperature between temperature difference; Control unit, for when described temperature difference is greater than preset temperature threshold values, keeps described compressor frequency constant; Described control unit also for when described temperature difference is less than or equal to described preset temperature threshold values, improves described compressor frequency.
According to one embodiment of present invention, when described control unit is less than or equal to described preset temperature threshold values in described temperature difference, before improving described compressor frequency, described control module also comprises: judging unit, for judging whether the ongoing frequency of described compressor is maximum operating frequency; Described control unit also for when judging the ongoing frequency of described compressor not as described maximum operating frequency, improves described compressor frequency; Described control unit is also for when the ongoing frequency judging described compressor is described maximum operating frequency, and the frequency adjusting described compressor is down to lowest operating frequency.Dehumidifier power reduction can be made like this, reduce energy loss.
According to one embodiment of present invention, described preset temperature threshold values is 0-5 degree.
According to one embodiment of present invention, described control device also comprises: judge module, for judging whether the working time of described dehumidifier is greater than Preset Time threshold values; Described detection module, also for when judging that the working time of described dehumidifier is greater than described preset time threshold, detects the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and described dehumidifier.
To achieve these goals, the dehumidifier of third aspect present invention embodiment, comprises the control device of second aspect present invention embodiment.
According to the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier is detected by the detection module in control device, the temperature of evaporimeter in envionmental humidity and dehumidifier, computing module calculates dew-point temperature according to the temperature of dry bulb and envionmental humidity, control module controls according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 is the flow chart of the control method of dehumidifier according to an embodiment of the invention;
Fig. 2 is the flow chart of the control method of dehumidifier in accordance with another embodiment of the present invention;
Fig. 3 is the flow chart of the control method of dehumidifier according to another embodiment of the present invention;
Fig. 4 is the structural representation of the control device of dehumidifier according to an embodiment of the invention;
Fig. 5 is the structural representation of control module according to an embodiment of the invention; And
Fig. 6 is the structural representation of the control device of dehumidifier according to another embodiment of the present invention.
Reference numeral:
Detection module 10, computing module 20, control module 30, judge module 40, computing unit 31, control unit 32, judging unit 33.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In order to solve when envionmental humidity reduces, now in dehumidifier, compressor is still and runs with upper frequency, thus cause the problem of complete machine efficiency reduction etc., the present invention proposes a kind of control method of dehumidifier, device and there is the dehumidifier of this control device.Particularly, below with reference to the accompanying drawings describe the control method of the dehumidifier of the embodiment of the present invention, device and there is the dehumidifier of this control device.
Fig. 1 is the flow chart of the control method of dehumidifier according to an embodiment of the invention.As shown in Figure 1, the control method of this dehumidifier can comprise:
S101, detects the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier.
Particularly, when dehumidifier is under the operating mode of dehumidification mode, detect the temperature of evaporimeter in the temperature of air intake place dry bulb in dehumidifier, envionmental humidity and dehumidifier by corresponding sensor.
S102, according to temperature and the envionmental humidity calculating dew-point temperature of dry bulb.
Particularly, can the temperature of the dry bulb detected and envionmental humidity be substituted in the computing formula of dew-point temperature, to obtain dew-point temperature.Wherein, in an embodiment of the present invention, the computing formula of dew-point temperature can be:
Td＝b/[a/log(e/6.11)-1] (1)
e＝f*Es (2)
Es＝E
0*10[a*t/(b+t)] (3)
Wherein, Td is the dew-point temperature of air, and e is the water vapor pressure of air, its unit is hpa, a, b is respectively parameter, for the water surface (t > 0 DEG C), a=7.5, b=237.3, for ice face (t≤0 DEG C), a=9.5, b=265.5, f is the relative humidity of air, and Es is the Saturated water vapor pressure of air, E
0for Saturated water vapor pressure when air themperature is 0 DEG C, get E
0=6.11hpa, t are air dry-bulb temperature.
Like this, the value corresponding to the temperature of dry bulb and envionmental humidity is substituted into above-mentioned (1) respectively and can draw dew-point temperature to formula (3).
It should be noted that, the computing formula of the dew-point temperature of the embodiment of the present invention is not limited to above-mentioned formula (1) to formula (3), also calculate formula by other dew-point temperatures of the prior art, as long as namely can obtain dew-point temperature according to the temperature of dry bulb and envionmental humidity, the computing formula of the present invention to dew-point temperature is not specifically limited.
S103, the compressor frequency of temperature to dehumidifier according to dew-point temperature and evaporimeter controls.
Specifically, in an embodiment of the present invention, the temperature difference between dew-point temperature and the temperature of evaporimeter can first be calculated, if this temperature difference is greater than preset temperature threshold values, compressor frequency then can be kept constant, if this temperature difference is less than or equal to preset temperature threshold values, then can improve compressor frequency.Wherein, in an embodiment of the present invention, preset temperature threshold values can be 0-5 degree.Be appreciated that in an embodiment of the present invention, preset temperature threshold values can be the threshold temperature preset, and the type of different dehumidifiers can select the value of this preset temperature threshold values of setting according to the configuration of this dehumidifier.
More specifically, first can calculate the temperature difference between dew-point temperature and the temperature of evaporimeter, temperature value corresponding to the temperature of evaporimeter is deducted by the temperature value that dew-point temperature is corresponding, obtain the temperature difference between both, if this temperature difference is greater than preset temperature threshold values, then can determine that the temperature of evaporimeter is lower than dew-point temperature more, the moisture in air condensation that evaporimeter now in dehumidifier can will be come in by the fan belt in dehumidifier, now can control compressor frequency in dehumidifier to remain unchanged, namely control dehumidifier and continue to keep this state to run; If said temperature difference is less than or equal to preset temperature threshold values, then can determine that the temperature of evaporimeter is close to or higher than dew-point temperature, now evaporimeter is difficult to the condensate moisture in air, therefore, now needs to improve compressor frequency, the temperature of evaporimeter to be reduced.
According to the control method of the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier can be detected, the temperature of evaporimeter in envionmental humidity and dehumidifier, and calculate dew-point temperature according to the temperature of dry bulb and envionmental humidity, and control according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
Fig. 2 is the flow chart of the control method of dehumidifier in accordance with another embodiment of the present invention.
Be to be understood that, when ambient humidity is down to very low, dew-point temperature also can be very low, if now still cannot the temperature of evaporimeter be dropped to lower than dew-point temperature by improving compressor frequency, therefore, in order to make dehumidifier power reduction, reduce energy loss, in an embodiment of the present invention, when the temperature difference between dew-point temperature and the temperature of evaporimeter is less than or equal to preset temperature threshold values, before improving compressor frequency, also need whether the ongoing frequency judging compressor is most high workload power, and according to judged result, compressor frequency is controlled accordingly.Particularly, as shown in Figure 2, the control method of this dehumidifier can comprise:
S201, detects the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier.
Particularly, when dehumidifier is under the operating mode of dehumidification mode, detect the temperature of evaporimeter in the temperature of air intake place dry bulb in dehumidifier, envionmental humidity and dehumidifier by corresponding sensor.
S202, according to temperature and the envionmental humidity calculating dew-point temperature of dry bulb.
Particularly, can the temperature of the dry bulb detected and envionmental humidity be substituted in the computing formula of dew-point temperature, to obtain dew-point temperature.Wherein, in an embodiment of the present invention, the computing formula of dew-point temperature can be:
Td＝b/[a/log(e/6.11)-1] (1)
e＝f*Es (2)
Es＝E
0*10[a*t/(b+t)] (3)
Wherein, Td is the dew-point temperature of air, and e is the water vapor pressure of air, its unit is hpa, a, b is respectively parameter, for the water surface (t > 0 DEG C), a=7.5, b=237.3, for ice face (t≤0 DEG C), a=9.5, b=265.5, f is the relative humidity of air, and Es is the Saturated water vapor pressure of air, E
0for Saturated water vapor pressure when air themperature is 0 DEG C, get E
0=6.11hpa, t are air dry-bulb temperature.
Like this, the value corresponding to the temperature of dry bulb and envionmental humidity is substituted into above-mentioned (1) respectively and can draw dew-point temperature to formula (3).
S203, calculates the temperature difference between dew-point temperature and the temperature of evaporimeter.
Particularly, temperature value corresponding for dew-point temperature can be deducted the temperature value that the temperature of evaporimeter is corresponding, obtain the temperature difference between dew-point temperature and the temperature of evaporimeter.
S204, if temperature difference is greater than preset temperature threshold value, then keeps compressor frequency constant.
Particularly, when said temperature difference is greater than preset temperature threshold value, determine that the temperature of evaporimeter is lower than dew-point temperature more, the moisture in air condensation that evaporimeter now in dehumidifier can will be come in by the fan belt in dehumidifier, now can control compressor frequency in dehumidifier to remain unchanged, namely control dehumidifier and continue to keep this state to run.
S205, if temperature difference is less than or equal to preset temperature threshold value, judges whether the ongoing frequency of compressor is maximum operating frequency.
Particularly, when said temperature difference is less than or equal to preset temperature threshold values, can determine that the temperature of evaporimeter is close to or higher than dew-point temperature, now evaporimeter is difficult to the condensate moisture in air, therefore, now need to improve compressor frequency the temperature of evaporimeter to be reduced.But if current environment humidity is down to very low, dew-point temperature is also very low, now cannot the temperature of evaporimeter be dropped to lower than dew-point temperature by improving compressor frequency again, therefore, before raising compressor frequency, need judge whether the ongoing frequency of compressor is maximum operating frequency.
S206, if be not maximum operating frequency, then improves compressor frequency.
Particularly, when judging the ongoing frequency of compressor not as maximum operating frequency, now can improve compressor frequency the temperature of evaporimeter to be reduced.
S207, if be maximum operating frequency, then the frequency adjusting compressor is down to lowest operating frequency, and returns execution step S201.
Particularly, when the ongoing frequency judging compressor is maximum operating frequency, can the frequency of compressor be down to minimum, and continue to detect the temperature of evaporimeter in the temperature of dry bulb in current dehumidifier, envionmental humidity and dehumidifier, and calculate existing dew point temperature according to the temperature of current dry bulb and envionmental humidity, and according to existing dew point temperature and the temperature difference between the temperature of front evaporator, decide control compressor raising frequency or frequency reducing or keep current operation frequency.
That is, if a period of time environment humidity does not rise, then the compressor in dehumidifier will run with low-limit frequency always, after ambient humidity rises, then improve compressor frequency.Like this can power saving, high frequent start and stop can be prevented again.
According to the control method of the dehumidifier of the embodiment of the present invention, when the temperature difference between dew-point temperature and the temperature of evaporimeter is less than or equal to preset temperature threshold values, before improving compressor frequency, whether the ongoing frequency that can judge compressor is maximum operating frequency, if not, then can improve compressor frequency, if, then the frequency of adjustable compressor is down to lowest operating frequency, can make dehumidifier power reduction like this, reduces energy loss.
Further, in one embodiment of the invention, before the temperature (i.e. above-mentioned S101 or above-mentioned S201) detecting evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier, the control method of this dehumidifier also can comprise: judge whether the working time of dehumidifier is greater than Preset Time threshold values, if be greater than Preset Time threshold values, then detect the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier.Wherein, in an embodiment of the present invention, Preset Time threshold values can be regarded as and presets, and presets dehumidifier and should to keep running certain hour.That is, after guarantee dehumidifier keeps running certain hour (as Preset Time threshold values), can start to detect the temperature of evaporimeter in the temperature of current dry bulb in dehumidifier, envionmental humidity and dehumidifier.
In order to make those skilled in the art more understand the present invention, can illustrate below.
For example, as shown in Figure 3, be that 2 hours (i.e. 2h), preset temperature threshold values N are for 3 for Preset Time threshold values, after monitoring user and open dehumidifier and selecting continuous dehumidifying mode instruction, can start to start dehumidifier and start continuous dehumidifying pattern (S301).Afterwards, after the guarantee dehumidifier working time exceedes Preset Time threshold values (i.e. 2h) (S302), the temperature T2 (S303) of the temperature of dry bulb, envionmental humidity, evaporimeter can be detected.Then, the dew-point temperature t (S304) under the temperature of this dry bulb, this operating mode of envionmental humidity can be calculated, and dew-point temperature t is deducted the temperature T2 of evaporimeter, obtain both temperature difference Δ t, i.e. t-T2=Δ t, and Δ t and preset temperature threshold values N is carried out size comparison (S305).When temperature difference Δ t is greater than preset temperature threshold values N, namely during Δ t>3, the compressor that can control dehumidifier keeps ongoing frequency to continue to run, and returns execution step S303; When temperature difference Δ t is less than or equal to preset temperature threshold values N, namely during Δ t≤3, first can judge whether compressor frequency is maximum operating frequency (S306).When compressor frequency is not maximum operating frequency, controlled compressor frequency processed raises and continues to run (S307), and after frequency raises, detect the temperature of temperature, envionmental humidity and the evaporimeter continuing to detect dry bulb, and calculate dew-point temperature t, calculate t-T2=Δ t again, circulate according to this.When compressor frequency is maximum operating frequency, compressor frequency can be down to lowest operating frequency (S308), after running Preset Time threshold values (namely 2 hours), repeat above step again.
In order to realize above-described embodiment, the invention allows for a kind of control device of dehumidifier.
Fig. 4 is the structural representation of the control device of dehumidifier according to an embodiment of the invention.As shown in Figure 4, the control device of this dehumidifier can comprise: detection module 10, computing module 20 and control module 30.
Particularly, detection module 10 can be used for detecting the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier.More specifically, when dehumidifier is under the operating mode of dehumidification mode, detection module 10 detects the temperature of evaporimeter in the temperature of air intake place dry bulb in dehumidifier, envionmental humidity and dehumidifier by corresponding sensor.
Computing module 20 can be used for calculating dew-point temperature according to the temperature of dry bulb and envionmental humidity.More specifically, the temperature of the dry bulb detected and envionmental humidity can substitute in the computing formula of dew-point temperature, to obtain dew-point temperature by computing module 20.Wherein, in an embodiment of the present invention, the computing formula of dew-point temperature can be:
Td＝b/[a/log(e/6.11)-1] (1)
e＝f*Es (2)
Es＝E
0*10[a*t/(b+t)] (3)
Wherein, Td is the dew-point temperature of air, and e is the water vapor pressure of air, its unit is hpa, a, b is respectively parameter, for the water surface (t > 0 DEG C), a=7.5, b=237.3, for ice face (t≤0 DEG C), a=9.5, b=265.5, f is the relative humidity of air, and Es is the Saturated water vapor pressure of air, E
0for Saturated water vapor pressure when air themperature is 0 DEG C, get E
0=6.11hpa, t are air dry-bulb temperature.
Like this, the value corresponding to the temperature of dry bulb and envionmental humidity is substituted into above-mentioned (1) and can draw dew-point temperature to formula (3) by computing module 20 respectively.
Control module 30 can be used for controlling according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter.Specifically, in one embodiment of the invention, as shown in Figure 5, this control module 30 can comprise computing unit 31 and control unit 32.More specifically, computing unit 31 can be used for calculating the temperature difference between dew-point temperature and the temperature of evaporimeter.Control unit 32 is used in temperature difference when being greater than preset temperature threshold values, keeps compressor frequency constant.In an embodiment of the present invention, control unit 32 is also used in temperature difference when being less than or equal to preset temperature threshold values, improves compressor frequency.Wherein, in an embodiment of the present invention, preset temperature threshold values can be 0-5 degree.Be appreciated that in an embodiment of the present invention, preset temperature threshold values can be the threshold temperature preset, and the type of different dehumidifiers can select the value of this preset temperature threshold values of setting according to the configuration of this dehumidifier.
More specifically, computing unit 31 first can calculate the temperature difference between dew-point temperature and the temperature of evaporimeter, temperature value corresponding to the temperature of evaporimeter is deducted by the temperature value that dew-point temperature is corresponding, obtain the temperature difference between both, if this temperature difference is greater than preset temperature threshold values, then control unit 32 can determine that the temperature of evaporimeter is lower than dew-point temperature more, the moisture in air condensation that evaporimeter now in dehumidifier can will be come in by the fan belt in dehumidifier, now can control compressor frequency in dehumidifier to remain unchanged, namely control dehumidifier to continue to keep this state to run, if said temperature difference is less than or equal to preset temperature threshold values, then control unit 32 can determine that the temperature of evaporimeter is close to or higher than dew-point temperature, and now evaporimeter is difficult to the condensate moisture in air, therefore, now need to improve compressor frequency, the temperature of evaporimeter to be reduced.
Be to be understood that, when ambient humidity is down to very low, dew-point temperature also can be very low, if now still cannot drop to lower than dew-point temperature by the temperature of evaporimeter by improving compressor frequency, therefore, in order to make dehumidifier power reduction, reduce energy loss, in one embodiment of the invention, as shown in Figure 5, when control unit 32 is less than or equal to preset temperature threshold values in temperature difference, before improving compressor frequency, this control module 30 also can comprise judging unit 33.Judging unit 33 can be used for judging whether the ongoing frequency of compressor is maximum operating frequency.In an embodiment of the present invention, control unit 32 be also used in judge compressor ongoing frequency not as maximum operating frequency time, improve compressor frequency.Control unit 32 is also used in the ongoing frequency judging compressor when being maximum operating frequency, and the frequency of adjustment compressor is down to lowest operating frequency.
More specifically, when the ongoing frequency that judging unit 33 judges compressor is maximum operating frequency, the frequency of compressor can be down to minimum by control unit 32.Now detection module 10 can continue to detect the temperature of evaporimeter in the temperature of dry bulb in current dehumidifier, envionmental humidity and dehumidifier, computing module 20 calculates existing dew point temperature according to the temperature of current dry bulb and envionmental humidity, control module 30, according to existing dew point temperature and the temperature difference between the temperature of front evaporator, decides control compressor raising frequency or frequency reducing or keep current operation frequency.
Further, in one embodiment of the invention, as shown in Figure 6, detect the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier at detection module 10 before, the control device of this dehumidifier also can comprise judge module 40, and judge module 40 can be used for judging whether the working time of dehumidifier is greater than Preset Time threshold values.In an embodiment of the present invention, when detection module 10 is also used in and judges that the working time of dehumidifier is greater than preset time threshold, detect the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and dehumidifier.Wherein, in an embodiment of the present invention, Preset Time threshold values can be regarded as and presets, and presets dehumidifier and should to keep running certain hour.That is, after guarantee dehumidifier keeps running certain hour (as Preset Time threshold values), detection module 10 can start to detect the temperature of evaporimeter in the temperature of current dry bulb in dehumidifier, envionmental humidity and dehumidifier.
According to the control device of the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier is detected by detection module, the temperature of evaporimeter in envionmental humidity and dehumidifier, computing module calculates dew-point temperature according to the temperature of dry bulb and envionmental humidity, control module controls according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
In order to realize above-described embodiment, the invention allows for a kind of dehumidifier, comprising the control device of the dehumidifier of any one embodiment above-mentioned.
According to the dehumidifier of the embodiment of the present invention, the temperature of dry bulb in dehumidifier is detected by the detection module in control device, the temperature of evaporimeter in envionmental humidity and dehumidifier, computing module calculates dew-point temperature according to the temperature of dry bulb and envionmental humidity, control module controls according to the compressor frequency of temperature to dehumidifier of dew-point temperature and evaporimeter, namely decide control compressor raising frequency or control compressor frequency reducing according to the temperature of dew-point temperature and evaporimeter, can effectively prevent dehumidifier from still running with upper frequency under low-humidity environment, and reach the object of power saving, thus improve the efficiency of dehumidifier.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (11)
1. a control method for dehumidifier, is characterized in that, comprises the following steps:
The temperature of evaporimeter in S1, the temperature detecting dry bulb in dehumidifier, envionmental humidity and described dehumidifier;
S2, calculate dew-point temperature according to the temperature of described dry bulb and described envionmental humidity; And
S3, to control according to the compressor frequency of temperature to described dehumidifier of described dew-point temperature and described evaporimeter.
2. the control method of dehumidifier as claimed in claim 1, it is characterized in that, described step S3 specifically comprises:
S31, calculate described dew-point temperature and described evaporimeter temperature between temperature difference;
If the described temperature difference of S32 is greater than preset temperature threshold value, then keep described compressor frequency constant; And
If the described temperature difference of S33 is less than or equal to described preset temperature threshold value, then improve described compressor frequency.
3. the control method of dehumidifier as claimed in claim 2, is characterized in that, before described step S33, also comprise:
Whether the ongoing frequency judging described compressor is maximum operating frequency;
If be not described maximum operating frequency, then perform described step S33;
If be described maximum operating frequency, then the frequency adjusting described compressor is down to lowest operating frequency, and repeats described step S1-S3.
4. the control method of dehumidifier as claimed in claim 2, it is characterized in that, described preset temperature threshold value is 0-5 degree.
5. the control method of dehumidifier as claimed in claim 1, is characterized in that, before described step S1, also comprise:
Judge whether the working time of described dehumidifier is greater than preset time threshold;
If be greater than described preset time threshold, then perform described step S1.
6. a control device for dehumidifier, is characterized in that, comprising:
Detection module, for detecting the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and described dehumidifier;
Computing module, for calculating dew-point temperature according to the temperature of described dry bulb and described envionmental humidity; And
Control module, for controlling according to the compressor frequency of temperature to described dehumidifier of described dew-point temperature and described evaporimeter.
7. the control device of dehumidifier as claimed in claim 6, it is characterized in that, described control module comprises:
Computing unit, for calculate described dew-point temperature and described evaporimeter temperature between temperature difference;
Control unit, for when described temperature difference is greater than preset temperature threshold values, keeps described compressor frequency constant;
Described control unit also for when described temperature difference is less than or equal to described preset temperature threshold values, improves described compressor frequency.
8. the control device of dehumidifier as claimed in claim 7, it is characterized in that, when described control unit is less than or equal to described preset temperature threshold values in described temperature difference, before improving described compressor frequency, described control module also comprises:
Judging unit, for judging whether the ongoing frequency of described compressor is maximum operating frequency;
Described control unit also for when judging the ongoing frequency of described compressor not as described maximum operating frequency, improves described compressor frequency;
Described control unit is also for when the ongoing frequency judging described compressor is described maximum operating frequency, and the frequency adjusting described compressor is down to lowest operating frequency.
9. the control device of dehumidifier as claimed in claim 7, it is characterized in that, described preset temperature threshold values is 0-5 degree.
10. the control device of dehumidifier as claimed in claim 6, is characterized in that, also comprise:
Judge module, for judging whether the working time of described dehumidifier is greater than Preset Time threshold values;
Described detection module, also for when judging that the working time of described dehumidifier is greater than described preset time threshold, detects the temperature of evaporimeter in the temperature of dry bulb in dehumidifier, envionmental humidity and described dehumidifier.
11. 1 kinds of dehumidifiers, is characterized in that, comprising: the control device of the dehumidifier according to any one of claim 6-10.
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| CN105006257A (en) * | 2015-05-20 | 2015-10-28 | 大亚湾核电运营管理有限责任公司 | Drying device and method for secondary side of million-KW level pressurized water reactor nuclear power station evaporator |
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