CN114738857B - Dehumidifier unit capable of realizing low temperature and low humidity and control method thereof - Google Patents
Dehumidifier unit capable of realizing low temperature and low humidity and control method thereof Download PDFInfo
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- CN114738857B CN114738857B CN202210491584.1A CN202210491584A CN114738857B CN 114738857 B CN114738857 B CN 114738857B CN 202210491584 A CN202210491584 A CN 202210491584A CN 114738857 B CN114738857 B CN 114738857B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 146
- 238000010438 heat treatment Methods 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 238000011069 regeneration method Methods 0.000 claims abstract description 27
- 230000008929 regeneration Effects 0.000 claims abstract description 26
- 238000001704 evaporation Methods 0.000 claims description 36
- 230000008020 evaporation Effects 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 23
- 238000007791 dehumidification Methods 0.000 claims description 18
- 239000002274 desiccant Substances 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 200
- 230000000694 effects Effects 0.000 description 8
- 239000012080 ambient air Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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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- 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
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F2003/1458—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 using regenerators
- F24F2003/1464—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 using regenerators using rotating regenerators
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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
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/1032—Desiccant wheel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Drying Of Gases (AREA)
Abstract
The application discloses a dehumidifier unit capable of realizing low temperature and low humidity and a control method thereof, wherein the dehumidifier unit comprises a shell, wherein a control device, a dehumidifying rotating wheel, a first air inlet mechanism, a cooling mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and an adjusting mechanism are arranged in the shell; the first air inlet mechanism comprises a cooling device, and the first air inlet mechanism, the processing side of the dehumidifying rotating wheel, the cooling mechanism and the air supply mechanism are sequentially arranged along the air supply direction; the second air inlet mechanism, the heating mechanism, the regeneration side of the dehumidifying rotating wheel and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism through the adjusting mechanism; according to the dehumidifier unit disclosed by the application, the cooling device, the processing side of the dehumidifying rotating wheel and the cooling mechanism are matched, so that the dehumidifier can output low-temperature low-humidity air meeting the requirements of environmental working conditions, and the use experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of dehumidifiers, in particular to a dehumidifier unit capable of realizing low temperature and low humidity and a control method thereof.
Background
The traditional dehumidifier adopts a mechanical refrigeration mode to condense and dehumidify the ambient air, or adopts a dehumidification rotating wheel to adsorb and dehumidify the ambient air.
For the dehumidifier adopting the mechanical refrigeration mode, the evaporation temperature of the unit needs to be reduced to below the dew point temperature of the demand in the working process of the unit, the temperature and the humidity cannot be decoupled, if the environment demand is a low-temperature working condition, the problem that the working energy consumption of the unit is higher exists, and in order to meet the low-temperature air supply, the condition that the low-humidity air supply demand cannot be met easily occurs.
For the dehumidifier adopting the desiccant rotor to adsorb and dehumidify, the cooling source is required to be consumed by the processing side of the desiccant rotor, and the heat source is required to be consumed by the regeneration side, so that the problem of high working energy consumption of the dehumidifier exists.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a dehumidifier unit capable of realizing low temperature and low humidity, outputting low temperature and low humidity air meeting the requirements of environmental working conditions and improving the use experience of users.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The dehumidifier unit capable of realizing low temperature and low humidity comprises a shell, wherein a control device, a dehumidifying rotating wheel, a first air inlet mechanism, a cooling mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and an adjusting mechanism are arranged in the shell, and the heating mechanism, the air supply mechanism, the air exhaust mechanism and the adjusting mechanism are respectively and electrically connected with the control device; the first air inlet mechanism comprises a cooling device, and the first air inlet mechanism, the processing side of the dehumidifying rotating wheel, the cooling mechanism and the air supply mechanism are sequentially arranged along the air supply direction; the second air inlet mechanism, the heating mechanism, the regeneration side of the dehumidifying rotating wheel and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism through the adjusting mechanism.
In the dehumidifier unit, the heating mechanism comprises a condensing unit, the cooling mechanism comprises an evaporating unit, the adjusting mechanism comprises a compressor and a throttling device which are respectively and electrically connected with the control device, one end of the evaporating unit is connected with one end of the condensing unit through the compressor, and the other end of the condensing unit is connected with the other end of the evaporating unit through the throttling device.
In the dehumidification unit, the heating mechanism further comprises an auxiliary heating device, and the auxiliary heating device is arranged between the condensing device and the regeneration side of the dehumidification rotating wheel and is electrically connected with the control device.
In the dehumidifier unit, the first air inlet mechanism comprises a first air inlet interface device and a first filtering device, and the first air inlet interface device, the first filtering device, the cooling device and the processing side of the dehumidifying rotating wheel are sequentially arranged along the air supply direction; the second air inlet mechanism comprises a second air inlet interface device and a second filter device, and the second air inlet interface device, the second filter device and the heating mechanism are sequentially arranged along the exhaust direction.
In the dehumidifier unit, the air supply mechanism comprises an air supply interface device and an air supply fan, and the cooling mechanism, the air supply fan and the air supply interface device are sequentially arranged along the air supply direction; the exhaust mechanism comprises an exhaust interface device and an exhaust fan, and the regeneration side of the dehumidifying rotating wheel, the exhaust fan and the exhaust interface device are sequentially arranged along the exhaust direction.
In the dehumidifier unit, an access door and one or more access windows are arranged on the shell.
The invention also correspondingly provides a control method of the dehumidifier unit capable of realizing low temperature and low humidity, the control method is used for realizing the working control of the dehumidifier unit, the cooling mechanism also comprises a pressure detection device used for acquiring the real-time working pressure of the evaporation device, and the control method comprises the following steps:
A proper range of the evaporation pressure is preset in the control device;
the control device acquires a real-time pressure value fed back by the pressure detection device;
The control device adjusts the opening of the throttling device according to the real-time pressure value, so that the real-time pressure value is stabilized in a proper range of the preset evaporation pressure.
In the control method, the dehumidifier unit further comprises a first air inlet detection device for acquiring air inlet parameters of the regeneration side of the dehumidifying rotating wheel; the heating mechanism comprises an auxiliary heating device electrically connected with the control device, the auxiliary heating device is arranged at the air inlet end of the regeneration side of the dehumidifying rotating wheel, and the control method further comprises the following steps:
the control device obtains the temperature requirement of the air outlet dew point of the processing side of the dehumidifying rotating wheel;
The control device adjusts the working state of the auxiliary heating device according to the real-time air inlet parameters fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement.
In the control method, the dehumidifier unit further comprises a second air inlet detection device for acquiring air inlet parameters of the treatment side of the dehumidification rotating wheel and an air supply detection device for acquiring air supply parameters of the treatment side of the dehumidification rotating wheel; the control method further includes the steps of:
the method comprises the steps that ideal air inlet parameters of a dehumidifying rotating wheel processing side are set in a control device in advance, and ideal air supply parameters of the dehumidifying rotating wheel processing side are set;
the control device acquires real-time air inlet parameters of the processing side fed back by the second air inlet detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air inlet parameters and ideal air inlet parameters;
Or the control device acquires the real-time air supply parameters of the processing side fed back by the air supply detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air supply parameters and the ideal air supply parameters.
In the control method, the control method further comprises the steps of:
When the control device receives a control instruction for starting dehumidification operation, the control device firstly controls the exhaust mechanism to start operation;
When the working time length of the air exhaust mechanism is consistent with the air exhaust time length preset in the control device, the control device controls the air supply mechanism to start working.
The beneficial effects are that:
The invention provides a dehumidifier unit capable of realizing low temperature and low humidity, wherein a cooling device is matched with the treatment side of a dehumidifying rotating wheel, so that the moisture content of ambient air can be effectively removed, and the moisture content of the air can meet the low-humidity working condition requirement of the environment; in the dehumidification process of the dehumidification runner treatment side, the temperature rises, the temperature is reduced through the cooling mechanism, the quantity of the refrigerant entering the cooling mechanism is regulated through the regulating mechanism, the air treated by the cooling mechanism can be ensured to meet the low-temperature working condition requirement of the environment, namely, the air output by the dehumidifier unit meets the low-temperature low-humidity requirement of the environment working condition, and the use experience of a user is improved.
Drawings
FIG. 1 is a side view of the internal structure of a dehumidifier unit provided by the present invention;
FIG. 2 is a top view of the internal structure of the dehumidifier unit provided by the invention;
FIG. 3 is a system block diagram of a dehumidifier unit provided by the present invention;
FIG. 4 is a first logic flow diagram of a control method provided by the present invention;
FIG. 5 is a second logic flow diagram of a control method provided by the present invention;
FIG. 6 is a third logic flow diagram of a control method provided by the present invention;
fig. 7 is a fourth logic flow diagram of a control method provided by the present invention.
Description of main reference numerals: 1-housing, 11-control device, 12-access door, 13-access panel, 2-desiccant wheel, 21-process side, 22-regeneration side, 31-first air inlet interface, 32-first filter device, 33-cooling device, 4-evaporation device, 51-second air inlet interface, 52-second filter device, 61-condensing device, 62-auxiliary heating device, 71-air supply interface, 72-blower, 81-air exhaust interface, 82-exhaust fan, 91-throttling device, 92-compressor.
Detailed Description
The invention provides a dehumidifier unit capable of realizing low temperature and low humidity and a control method thereof, and aims to make the purposes, the technical scheme and the effects of the dehumidifier unit clearer and more definite.
In the description of the present invention, it should be understood that the terms "mounted," "connected," and the like should be construed broadly, and that the specific meaning of the terms in the present invention may be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1 to 3, the invention provides a dehumidifier unit capable of realizing low temperature and low humidity, comprising a housing 1, wherein a control device 11, a dehumidifying rotating wheel 2, a first air inlet mechanism, a cooling mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and an adjusting mechanism which are respectively and electrically connected with the control device 11 are arranged in the housing 1; the first air inlet mechanism comprises a cooling device 33, and the first air inlet mechanism, the processing side 21 of the dehumidifying rotating wheel 2, the cooling mechanism and the air supply mechanism are sequentially arranged along the air supply direction; the second air inlet mechanism, the heating mechanism, the regeneration side 22 of the dehumidifying rotating wheel 2 and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism through the adjusting mechanism, and the adjusting mechanism is used for adjusting the flow of the refrigerant entering the cooling mechanism.
In the dehumidifying unit disclosed by the application, when the dehumidifying work is performed, the external ambient air firstly passes through the cooling device 33, the dry bulb temperature of the air is obviously reduced, and the moisture content is reduced slightly; the air subjected to the temperature reduction and humidity reduction enters the treatment side 21 of the dehumidifying rotating wheel 2, and after isenthalpic treatment, the air output by the treatment side 21 is subjected to humidity reduction and temperature rise, and the moisture content of the air can meet the low-humidity working condition requirement of the environment; the air after temperature rise is cooled by the cooling mechanism, the quantity of the refrigerant entering the cooling mechanism is regulated by the regulating mechanism, so that the air processed by the cooling mechanism can meet the low-temperature working condition requirement of the environment, namely the air output by the dehumidifier unit meets the low-temperature low-humidity requirement of the environment working condition, and the use experience of a user is improved; the cooling mechanism is connected with the heating mechanism, and the heating mechanism is arranged at the input end of the regenerating side 22 of the dehumidifying rotating wheel, and the heat of the recoverable air heats the air entering the regenerating side 22, so that the water vapor molecules of the treating side 21 are desorbed from the regenerating side 22 along with the heated high-temperature air, the normal dehumidification of the treating side 21 is ensured, the energy utilization rate is improved, and the working energy consumption of a dehumidifier unit is reduced.
Further, referring to fig. 1 and 3, the heating mechanism includes a condensing device 61, the cooling mechanism includes an evaporating device 4, the adjusting mechanism includes a compressor 92 and a throttling device 91 electrically connected to the control device 11, one end of the evaporating device 4 is connected to one end of the condensing device 61 through the compressor 92, and the other end of the condensing device 61 is connected to the other end of the evaporating device 4 through the throttling device 91; in one embodiment, the condensing unit 61 and the evaporating unit 4 may be in the form of air-air heat exchangers, and the compressor 92 may be a rotor compressor, a screw compressor or a centrifugal compressor.
Further, referring to fig. 1 and 3, the heating mechanism further includes an auxiliary heating device 62, where the auxiliary heating device 62 is disposed between the condensing device 61 and the regeneration side 22 of the desiccant rotor 2 and is electrically connected to the control device 11, and the control device 11 can adjust the temperature of the air entering the regeneration side 22 of the desiccant rotor by adjusting the heating effect of the auxiliary heating device 62, so as to ensure that the air is high enough to achieve effective desorption of the water vapor from the treatment side 21, thereby ensuring that the treatment side 21 maintains a better dehumidification effect, and improving the stability and reliability of the dehumidifier during operation; in one embodiment, the auxiliary heating means 62 may be electrically heated, steam or heat conductive oil.
Further, referring to fig. 1 and 3, the first air intake mechanism includes a first air intake interface device 31 and a first filter device 32, where the first air intake interface device 31, the first filter device 32, the cooling device 33, and the processing side 21 of the desiccant rotor 2 are sequentially disposed along the air supply direction; the second air inlet mechanism comprises a second air inlet interface device 51 and a second filter device 52, and the second air inlet interface device 51, the second filter device 52 and the heating mechanism are sequentially arranged along the air exhaust direction; the first filter 32 and the second filter 52 are provided to filter dust particles of air, etc., so that the cleanliness of the air supplied by the dehumidifier unit and the air discharged therefrom can be improved; in one embodiment, the first air inlet interface 31 is a first air inlet formed on the housing 1, the second air inlet interface 51 is a second air inlet formed on the housing 1, and the first filter 32 and the second filter 52 may be primary filters or activated carbon filters.
Further, referring to fig. 1 to 3, the air supply mechanism includes an air supply interface device 71 and an air supply blower 72, and the cooling mechanism, the air supply blower 72 and the air supply interface device 71 are sequentially arranged along the air supply direction; the exhaust mechanism comprises an exhaust interface device 81 and an exhaust fan 82, and the regeneration side 22 of the dehumidifying rotating wheel, the exhaust fan 82 and the exhaust interface device 81 are sequentially arranged along the exhaust direction; the blower 72 and the exhaust fan 82 are used for providing power for the air flowing, so that the effective exhaust air and the effective supply air of the dehumidifier unit are ensured, and the stability and the reliability of the dehumidifier unit during operation are improved; in one embodiment, the air supply interface device 71 is an air supply port provided in the housing 1, and the air exhaust interface device 81 is an air exhaust port provided in the housing 1; the blower 72 and the exhaust fan 82 may be an AC fan or an EC fan.
Specifically, when the dehumidifier unit performs the dehumidification operation, for the air supplied by the processing side 21, the air to be processed is filtered by the first air inlet interface device 31 and the first filter device 32, and then enters the housing 1, and after being processed by the cooling device 33, the dry bulb temperature of the air is obviously reduced, and the moisture content is reduced slightly; the air subjected to the cooling and dehumidifying enters a treatment side 21 of the dehumidifying rotating wheel 2, after isenthalpic treatment, the air treated by the treatment side 21 is subjected to cooling and heating, and the moisture content of the air is treated to meet the low-humidity working condition requirement of the environment; then, the air enters the evaporation device 4, and the evaporation device 4 processes the air to the dry bulb temperature required by the low-temperature air supply state, namely, the air processed by the evaporation device 4 meets the low-temperature working condition requirement of the environment; the processed air is powered by the blower 72 and is discharged out of the housing 1 through the blower interface 71.
For the exhaust of the regeneration side 22, the external air is filtered by the second air inlet interface device 51 and the second filter device 52, and then enters the shell 1, and is heated in the condensing device 61; the auxiliary heating device 62 determines whether to operate according to a control instruction of the control device 11, if the auxiliary heating device 62 is in an operating state, air enters the regeneration side 22 of the dehumidifying rotor 2 after being further heated in the auxiliary heating device 62, water vapor molecules of the treatment side 21 are desorbed from the regeneration side 22 along with the heated high-temperature air through the heat mass exchange of the dehumidifying rotor 2, water content of the treated air is transferred to the regeneration side 22 to be discharged, a better dehumidification effect of the treatment side 21 is ensured, and finally the high-temperature and high-humidity air is discharged from the air exhaust interface device 81 under the power action of the air exhaust fan 82.
For the regulating mechanism, the compressor 92 discharges low-temperature low-pressure gas working medium to high-temperature high-pressure gas, the condensing device 61 radiates heat to heat air at the regeneration side 22, the refrigerating working medium realizes condensing phase change to liquid, then the liquid enters the throttling device 91 under the action of pressure difference, the throttling device 91 reduces the working medium to low pressure, the low-temperature low-pressure working medium absorbs heat in the evaporation device 4 to generate phase change again, the air at the treatment side 21 is cooled and dehumidified after absorbing heat, the refrigerating working medium is converted into a low-temperature low-pressure state to enter the compressor 92, and then enters the next refrigerating cycle; the heat of the recovered air can heat the air inlet of the regeneration side 22, so that the energy utilization rate is improved, the gradient utilization of energy is realized, and the working energy consumption of the dehumidification unit is reduced.
Further, referring to fig. 1, the housing 1 is provided with an access door 12 and one or more access windows 13, and the access door 12 and the access windows 13 are provided to facilitate maintenance personnel to maintain the electrical components and equipment in the housing 1; in one embodiment, two access panels 13 are provided on the housing 1.
Referring to fig. 4 to 7, the present invention further provides a control method for implementing a low-temperature and low-humidity dehumidifier unit, where the control method is used for implementing the operation control of any one of the dehumidifier units, and the cooling mechanism further includes a pressure detection device for obtaining the real-time working pressure of the evaporation device 4, and the control method includes the steps of:
S100, presetting a proper range of evaporation pressure in the control device 11; the suitable range may include an evaporation pressure maximum value, an evaporation pressure minimum value, and a pressure control accuracy, and when the real-time pressure value falls within a range of the evaporation pressure minimum value-the pressure control accuracy to the evaporation pressure maximum value + the pressure control accuracy, it is indicated that the real-time pressure value falls within the suitable range; the suitable range can be set and adjusted by staff according to the requirements of environmental working conditions.
S110, the control device 11 acquires a real-time pressure value fed back by the pressure detection device;
S120, the control device 11 adjusts the opening of the throttling device 91 according to the real-time pressure value, so that the real-time pressure value is stabilized within a proper range of the preset evaporation pressure; when the real-time pressure value is lower than the proper range, that is, the minimum value of the evaporation pressure-the pressure control accuracy, the control device 11 controls the opening degree of the throttle device 91 to be increased, the cooling effect of the evaporation device 4 is weakened, and the temperature of the ambient air is increased; when the real-time pressure value is higher than the proper range, that is, the maximum value of the evaporation pressure and the pressure control accuracy, the control device 11 controls the opening degree of the throttle device 91 to become smaller, the cooling effect of the evaporation device 4 is enhanced, and the ambient air temperature is reduced.
According to the control method disclosed by the application, the opening of the throttling device 91 is adjusted according to the real-time pressure value fed back by the pressure detection device and the preset proper range of the evaporation pressure, so that the heat exchange effect of the evaporation device 4 is adjusted, the air processed by the evaporation device 4 is ensured to meet the low-temperature working condition requirement of the environment, and the use experience of a user is improved.
Further, referring to fig. 5, the dehumidifier unit further includes a first air intake detection device for acquiring an air intake parameter of the regeneration side 22 of the desiccant rotor; the heating mechanism comprises an auxiliary heating device 62 electrically connected with the control device 11, the auxiliary heating device 62 is arranged at the air inlet end of the regeneration side 22 of the dehumidifying rotating wheel, and the control method further comprises the steps of:
s200, the control device 11 acquires the temperature requirement of the air outlet dew point of the processing side 21 of the dehumidifying rotating wheel;
S210, the control device 11 adjusts the working state of the auxiliary heating device 62 according to the real-time air inlet parameters fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement; the air inlet parameter can be air inlet dry bulb temperature or air inlet wet bulb temperature; in the step, the air inlet parameter is the air inlet dry bulb temperature; the staff sets ideal air inlet dry-bulb temperature in the control device according to the air outlet dew point temperature requirement, when the real-time air inlet dry-bulb temperature is smaller than the ideal air inlet dry-bulb temperature, the control device 11 increases the heating temperature of the auxiliary heating device 62, namely the auxiliary heating device 62 needs to provide more heat; when the real-time intake dry bulb temperature is greater than the ideal intake dry bulb temperature, the control device 11 reduces the heating temperature of the auxiliary heating device 62, i.e. the heat provided by the auxiliary heating device 62 is reduced.
According to the control method disclosed by the application, the working state of the auxiliary heating device 62 can be adjusted according to the temperature requirement of the air outlet dew point of the processing side 21 of the dehumidifying rotating wheel or the humidity requirement of the processing side 21, so that the air temperature of the regeneration side 22 is ensured to be high enough to realize effective desorption of water vapor molecules of the processing side 21, thereby ensuring that the processing side 21 keeps a better dehumidifying effect, and the air processed by the processing side 21 meets the low-humidity working condition requirement of the environment.
Further, referring to fig. 6, the dehumidifier unit further includes a second air intake detecting device for obtaining an air intake parameter of the processing side 21 of the desiccant rotor, and an air supply detecting device for obtaining an air supply parameter of the processing side 21 of the desiccant rotor; the control method further includes the steps of:
S311, setting ideal air inlet parameters of the dehumidifying rotating wheel processing side 21 in the control device 11 in advance, wherein the air inlet parameters can be air inlet dry bulb temperature or air inlet wet bulb temperature;
S312, the control device 11 acquires real-time air inlet parameters of the processing side 21 fed back by the second air inlet detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air inlet parameters and ideal air inlet parameters; specifically, the control device 11 adopts a PID regulation mode, when the difference between the real-time air inlet parameter and the ideal air inlet parameter is larger than the preset difference, the control device 11 controls the working frequency of the air blower 72 to be improved, and the rotating speed of the air blower 72 is increased; when the difference between the real-time air intake parameter and the ideal air intake parameter is smaller than the preset difference, the control device 11 controls the working frequency of the blower 72 to be reduced, and the rotating speed of the blower 72 is reduced.
S321, setting ideal air supply parameters of the dehumidifying rotor processing side 21 in the control device 11 in advance, wherein the air supply parameters can be air supply dry bulb temperature or air supply wet bulb temperature;
s322, the control device 11 acquires real-time air supply parameters of the processing side 21 fed back by the air supply detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air supply parameters and ideal air supply parameters; specifically, the control device 11 adopts a PID regulation mode, and when the difference between the real-time air supply parameter and the preset air supply parameter is greater than the preset difference, the control device 11 controls the working frequency of the air blower 72 to be reduced, and the rotating speed of the air blower 72 is reduced; when the difference between the real-time air supply parameter and the preset air supply parameter is smaller than the preset difference, the control device 11 controls the working frequency of the blower 72 to be increased, and the rotation speed of the blower 72 is increased.
According to the control method disclosed by the application, the working state of the blower 72 is adjusted according to the air inlet parameter or the air supply parameter, so that the temperature of the air output by the dehumidifier unit can be ensured to meet the low-temperature working condition requirement of the environment, and the stability and reliability of the dehumidifier unit in working are improved.
Further, referring to fig. 7, the control method further includes the steps of:
S400, when the control device 11 receives a control instruction for starting dehumidification operation, the control device 11 firstly controls the exhaust mechanism to start operation;
S410, when the working time length of the air exhaust mechanism is consistent with the air exhaust time length preset in the control device 11, the control device 11 controls the air supply mechanism to start working, and the air exhaust mechanism keeps working; in one embodiment, the exhaust duration may be 20 seconds, which may be set by a worker according to the working environment of the dehumidifier unit.
According to the control method disclosed by the application, before the dehumidifier unit formally starts to work, namely before the processing side 21 starts to intake air, the control device 11 firstly controls the exhaust fan 82 of the exhaust mechanism to work for a certain time, so that the water vapor accumulated in the shutdown process of the regeneration side 22 of the dehumidifying rotating wheel can be discharged out of the shell 1, and the normal work of the dehumidifying rotating wheel 2 is ensured.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.
Claims (6)
1. The control method of the dehumidifier unit capable of realizing low temperature and low humidity is characterized in that the dehumidifier unit comprises a shell, wherein a control device, a dehumidifying rotating wheel, a first air inlet mechanism, a cooling mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and an adjusting mechanism are arranged in the shell, and the heating mechanism, the air supply mechanism, the air exhaust mechanism and the adjusting mechanism are respectively and electrically connected with the control device; the first air inlet mechanism comprises a cooling device, and the first air inlet mechanism, the processing side of the dehumidifying rotating wheel, the cooling mechanism and the air supply mechanism are sequentially arranged along the air supply direction; the second air inlet mechanism, the heating mechanism, the regeneration side of the dehumidifying rotating wheel and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism through the adjusting mechanism; the heating mechanism comprises a condensing device, the cooling mechanism comprises an evaporating device, the adjusting mechanism comprises a compressor and a throttling device which are respectively and electrically connected with the control device, one end of the evaporating device is connected with one end of the condensing device through the compressor, and the other end of the condensing device is connected with the other end of the evaporating device through the throttling device; the cooling mechanism further comprises a pressure detection device for acquiring the real-time working pressure of the evaporation device; the dehumidification unit further comprises a second air inlet detection device for acquiring air inlet parameters of the treatment side of the dehumidification rotating wheel and an air supply detection device for acquiring air supply parameters of the treatment side of the dehumidification rotating wheel; the control method comprises the following steps:
A proper range of the evaporation pressure is preset in the control device;
When the control device receives a control instruction for starting dehumidification operation, the control device firstly controls the exhaust mechanism to start operation;
when the working time length of the air exhaust mechanism is consistent with the air exhaust time length preset in the control device, the control device controls the air supply mechanism to start working;
the control device acquires a real-time pressure value fed back by the pressure detection device;
The control device adjusts the opening of the throttling device according to the real-time pressure value, so that the real-time pressure value is stabilized in a proper range of preset evaporation pressure, the quantity of the refrigerant entering the cooling mechanism is adjusted, and the air processed by the cooling mechanism can be ensured to meet the low-temperature working condition requirement of the environment;
specifically, when the real-time pressure value is higher than the proper range, the control device controls the opening degree of the throttling device to be reduced; when the real-time pressure value is lower than the proper range, the control device controls the opening degree of the throttling device to be increased;
the method comprises the steps that ideal air inlet parameters of a dehumidifying rotating wheel processing side are set in a control device in advance, and ideal air supply parameters of the dehumidifying rotating wheel processing side are set;
the control device acquires real-time air inlet parameters of the processing side fed back by the second air inlet detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air inlet parameters and ideal air inlet parameters;
Or the control device acquires the real-time air supply parameters of the processing side fed back by the air supply detection device, and adjusts the working state of the air supply mechanism according to the comparison result of the real-time air supply parameters and the ideal air supply parameters.
2. The method according to claim 1, wherein the heating mechanism further comprises an auxiliary heating device disposed between the condensing device and the regeneration side of the desiccant rotor and electrically connected to the control device.
3. The method according to claim 1, wherein the first air intake mechanism includes a first air intake interface device and a first filter device, and the first air intake interface device, the first filter device, the cooling device, and a processing side of the desiccant rotor are sequentially disposed along an air supply direction; the second air inlet mechanism comprises a second air inlet interface device and a second filter device, and the second air inlet interface device, the second filter device and the heating mechanism are sequentially arranged along the exhaust direction.
4. The method according to claim 1, wherein the air blowing mechanism includes an air blowing interface device and an air blower, and the cooling mechanism, the air blower and the air blowing interface device are sequentially arranged along the air blowing direction; the exhaust mechanism comprises an exhaust interface device and an exhaust fan, and the regeneration side of the dehumidifying rotating wheel, the exhaust fan and the exhaust interface device are sequentially arranged along the exhaust direction.
5. The method of claim 1, wherein the housing is provided with an access door and one or more access panels.
6. The control method according to claim 1, wherein the dehumidifier unit further comprises a first inlet air detection device for acquiring a regeneration side inlet air parameter of the desiccant rotor; the heating mechanism comprises an auxiliary heating device electrically connected with the control device, the auxiliary heating device is arranged at the air inlet end of the regeneration side of the dehumidifying rotating wheel, and the control method further comprises the following steps:
the control device obtains the temperature requirement of the air outlet dew point of the processing side of the dehumidifying rotating wheel;
The control device adjusts the working state of the auxiliary heating device according to the real-time air inlet parameters fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement.
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| CN202210491584.1A CN114738857B (en) | 2022-04-29 | 2022-04-29 | Dehumidifier unit capable of realizing low temperature and low humidity and control method thereof |
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| CN101762141B (en) * | 2010-01-26 | 2011-09-14 | 华南理工大学 | Drying device with combination of heat pump and rotating wheel |
| CN202382335U (en) * | 2011-11-11 | 2012-08-15 | 江苏大学 | Compound air-conditioning system combining air source heat pump and rotary wheel dehumidification system |
| CN105571017A (en) * | 2014-10-17 | 2016-05-11 | 浙江盾安机电科技有限公司 | Fresh air processing unit |
| CN205425262U (en) * | 2016-03-18 | 2016-08-03 | 上海朗绿建筑科技有限公司 | Fresh air dehumidification unit of many condensers of single evaporimeter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105823146A (en) * | 2016-04-26 | 2016-08-03 | 杭州格米环境科技有限公司 | Runner dehumidifier with compressor condensation heat recovery |
| CN206755418U (en) * | 2017-03-27 | 2017-12-15 | 上海工程技术大学 | A kind of pump type heat rotary dehumidifier |
| CN113357715A (en) * | 2021-06-08 | 2021-09-07 | 青岛奥利凯中央空调有限公司 | Intelligent consumption-reducing rotary dehumidification and purification system and control method thereof |
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