CN114777225A - Dehumidification unit and control method thereof - Google Patents
Dehumidification unit and control method thereof Download PDFInfo
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- CN114777225A CN114777225A CN202210465942.1A CN202210465942A CN114777225A CN 114777225 A CN114777225 A CN 114777225A CN 202210465942 A CN202210465942 A CN 202210465942A CN 114777225 A CN114777225 A CN 114777225A
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
Abstract
The invention discloses a dehumidifier unit and a control method thereof, wherein the dehumidifier unit comprises a shell, and a control device, a dehumidifying rotating wheel, a first air inlet mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and a cooling mechanism which are respectively and electrically connected with the control device are arranged in the shell; the first air inlet mechanism, the cooling mechanism, the processing side of the dehumidification rotating wheel 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 dehumidification rotating wheel and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism; according to the dehumidifying unit disclosed by the application, the air dehumidified by the processing side is directly output to the environment through the air supply mechanism, so that low dew point air supply of the dehumidifying unit is realized, and the air output by the dehumidifying unit is ensured to meet the humidity requirement of the environment working condition; in addition, cooling mechanism and heating mechanism cooperation retrieve the air inlet heat and heat regeneration side air inlet, improve energy utilization.
Description
Technical Field
The invention relates to the technical field of dehumidifiers, in particular to a dehumidifier unit and a control method thereof.
Background
The traditional dehumidifier adopts a mechanical refrigeration mode to condense and dehumidify 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 be lower than the required dew point temperature in the working process of the unit, the temperature and the humidity cannot be decoupled, if the environmental requirement is priority humidity control, the problem of high working energy consumption of the unit exists, and low dew point air supply cannot be realized.
For a dehumidifier adopting a dehumidification rotating wheel to adsorb and dehumidify, a heat source needs to be consumed on the regeneration side of the dehumidification rotating wheel, namely, the heat source needs to be additionally consumed, and the problem of high working energy consumption of the dehumidifier exists.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a dehumidifying unit, which can realize low dew point air supply, can recover the air inlet heat to heat the regenerated side air, improves the energy utilization rate and reduces the working energy consumption of the dehumidifying unit.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dehumidification unit comprises a shell, wherein a control device, a dehumidification rotating wheel, a first air inlet mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and a cooling mechanism are arranged in the shell, and the heating mechanism, the air supply mechanism, the air exhaust mechanism and the cooling mechanism are respectively and electrically connected with the control device; the first air inlet mechanism, the cooling mechanism, the processing side of the dehumidification rotating wheel 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 dehumidification rotating wheel and the exhaust mechanism are sequentially arranged along the exhaust direction; the cooling mechanism is connected with the heating mechanism.
In the dehumidification unit, the heating mechanism comprises a condensing device, the cooling mechanism comprises an evaporating device, a compressor and a throttling 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 compressor and the throttling device are respectively electrically connected with the control device.
In the dehumidification unit, the heating mechanism further comprises an auxiliary heating device electrically connected with the control device, and the condensing device, the auxiliary heating device and the regeneration side of the dehumidification rotating wheel are sequentially arranged along the air exhaust direction.
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 evaporating 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 filtering device, and the second air inlet interface device, the second filtering device and the heating mechanism are sequentially arranged along the air exhaust direction.
In the dehumidification unit, the air supply mechanism comprises an air supply interface device and an air supply machine, and the processing side of the dehumidification rotating wheel, the air supply machine 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 dehumidification rotating wheel, the exhaust fan and the exhaust interface device are sequentially arranged along the exhaust direction.
In the dehumidification 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 dehumidification unit, the control method is used for realizing the working control of the dehumidification unit, the heating mechanism further comprises a pressure detection device for acquiring the real-time condensation pressure of the condensation device, and the control method comprises the following steps:
setting a suitable range of condensing pressure in the control device in advance;
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 condensing pressure.
In the control method, the dehumidification unit further comprises a first air inlet detection device for acquiring a regeneration side air inlet parameter of the dehumidification rotating wheel; the heating mechanism comprises an auxiliary heating device electrically connected with the control device, and the auxiliary heating device is arranged at an air inlet end of the regeneration side of the dehumidification rotating wheel; the control method further comprises the steps of:
the control device acquires the temperature requirement of the outlet air dew point at the processing side of the dehumidification rotating wheel;
the control device adjusts the working state of the auxiliary heating device according to the real-time air inlet parameter fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement.
In the control method, the dehumidification unit further comprises a second air inlet detection device for acquiring air inlet parameters of the processing side of the dehumidification rotating wheel and an air supply detection device for acquiring air supply parameters of the processing side of the dehumidification rotating wheel; the control method further comprises the steps of:
setting ideal air inlet parameters of a dehumidification rotating wheel processing side and ideal air supply parameters of the dehumidification rotating wheel processing side in a control device in advance;
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 the ideal air inlet parameters;
or the control device acquires 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 includes:
when the control device receives a control instruction for starting dehumidification, the control device firstly controls the air exhaust mechanism to start working;
when the working time of the air exhaust mechanism is consistent with the air exhaust time preset in the control device, the control device controls the air supply mechanism to start working.
Has the beneficial effects that:
the invention provides a dehumidification unit, wherein air dehumidified at the side treated by a dehumidification rotating wheel is directly output to the environment through an air supply mechanism, so that low-dew-point air supply of the dehumidification unit is realized, and the air output by the dehumidification unit is ensured to meet the humidity requirement of the environment working condition; in addition, the heat of the inside ambient air of casing of input can be retrieved to cooling mechanism, and heating mechanism adopts the air inlet heat that cooling mechanism retrieved to heat dehumidification runner regeneration side inlet air, improves energy utilization and rates, reduces the work energy consumption of dehumidification unit.
Drawings
FIG. 1 is a side view of the internal structure of a dehumidification unit according to the present invention;
FIG. 2 is a top view of the internal structure of the dehumidifying unit according to the present invention;
FIG. 3 is a system configuration diagram of a dehumidifying unit according to 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 the 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 the control method provided by the present invention.
Description of the main element symbols: 1-shell, 11-control device, 12-access door, 13-access window, 2-dehumidification rotary wheel, 21-treatment side, 22-regeneration side, 31-first air inlet interface device, 32-first filtering device, 41-evaporation device, 42-throttling device, 43-compressor, 51-second air inlet interface device, 52-second filtering device, 61-condensation device, 62-auxiliary heating device, 71-air supply interface device, 72-air feeder, 81-air exhaust interface device and 82-exhaust fan.
Detailed Description
The invention provides a dehumidifier unit and a control method thereof, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and embodiments.
In the description of the present invention, it is to be understood that the terms "mounted," "connected," and the like are to be interpreted broadly, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
Referring to fig. 1 to 3, the present invention provides a dehumidifier unit, which includes a housing 1, wherein a control device 11, a desiccant wheel 2, a first air inlet mechanism, a second air inlet mechanism, and a heating mechanism, an air supply mechanism, an air exhaust mechanism and a cooling mechanism which are electrically connected to the control device 11 are disposed in the housing 1; the first air inlet mechanism, the cooling mechanism, the processing side 21 of the dehumidifying rotating wheel 2 and the air supply mechanism are arranged in sequence along the air supply direction; the second air inlet mechanism, the heating mechanism, the regeneration side 22 of the dehumidification rotating wheel 2 and the air exhaust mechanism are arranged in sequence along the air exhaust direction; the cooling mechanism is connected with the heating mechanism.
According to the dehumidification unit disclosed by the application, when dehumidification is carried out, external ambient air firstly passes through the cooling mechanism, the dry bulb temperature of the air is obviously reduced, and the moisture content is reduced slightly; the air after temperature reduction and humidity reduction enters the processing side 21 of the dehumidification rotating wheel 2, is subjected to isenthalpic processing, the air output by the processing side 21 is subjected to humidity reduction and temperature rise, and then is directly sent out of the shell 1 through the air supply mechanism, so that low-dew-point air supply is realized, the moisture content of the air output by the dehumidification unit is ensured to meet the humidity requirement of the environmental working condition, and the use experience of a user is improved; the cooling mechanism is connected with the heating mechanism, the heating mechanism is arranged at the input end of the regeneration side 22 of the dehumidification rotating wheel, the temperature of air entering the regeneration side 22 can be raised by heat of recoverable inlet air, water vapor molecules of the treatment side 21 are desorbed from the regeneration side 22 along with the heated high-temperature air, normal dehumidification of the treatment side 21 is ensured, the energy utilization rate is improved, and the working energy consumption of the dehumidification unit is reduced.
Further, referring to fig. 1 to 3, the heating mechanism includes a condensing device 61, the cooling mechanism includes an evaporating device 41, a compressor 43 and a throttling device 42, one end of the evaporating device 41 is connected to one end of the condensing device 61 through the compressor 43, and the other end of the condensing device 61 is connected to the other end of the evaporating device 41 through the throttling device 42; the compressor 43 and the throttling device 42 are electrically connected to the control device 11 respectively; in one embodiment, the condensing means 61 and the evaporating means 41 may be in the form of an air-to-air heat exchanger, and the compressor 43 may be a rotary compressor, a screw compressor or a centrifugal compressor.
Further, referring to fig. 1 and fig. 3, the heating mechanism further includes an auxiliary heating device 62 electrically connected to the control device 11, and the condensing device 61, the auxiliary heating device 62 and the regeneration side 22 of the desiccant rotor 2 are sequentially disposed along the exhaust direction; 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, and ensure that the air is at a high temperature enough to realize effective desorption of the water vapor on the treatment side 21, thereby ensuring that the treatment side 21 maintains a good dehumidification effect, and improving the stability and reliability of the dehumidifier unit during operation; in one embodiment, the auxiliary heating device 62 may be heated by electric heat, steam, heat-conducting oil, or the like.
Further, referring to fig. 1 to fig. 3, the first air intake mechanism includes a first air intake interface device 31 and a first filtering device 32, and the first air intake interface device 31, the first filtering device 32, the evaporating device 41 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 filtering device 52, and the second air inlet interface device 51, the second filtering device 52 and the heating mechanism are sequentially arranged along the air exhaust direction; the first filtering device 32 and the second filtering device 52 are arranged to filter dust particles and the like carried by the air entering the shell 1, so that the cleanliness of the air conveyed by the dehumidifying unit and the air exhausted by the dehumidifying unit can be improved; in one embodiment, the first air inlet interface 31 is a first air inlet opening on the housing 1, the second air inlet interface 51 is a second air inlet opening on the housing 1, and the first filtering device 32 and the second filtering device 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 device 72, and the processing side 21 of the desiccant rotor 2, the air supply device 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 desiccant rotor 2, 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 flow of air, so that the effective air exhaust and the effective air supply of the dehumidification unit are ensured, and the stability and the reliability of the dehumidification unit during working are improved; in one embodiment, the air supply interface 71 is an air supply outlet arranged on the casing 1, and the air exhaust interface 81 is an air exhaust outlet arranged on the casing 1; the blower 72 and the exhaust fan 82 may be AC fans or EC fans.
Specifically, when the dehumidification unit performs dehumidification, for the air supply at the processing side 21, the air to be processed enters the inside of the housing 1 after being filtered by the first air inlet interface device 31 and the first filtering device 32, and after being processed by the evaporation device 41, the dry bulb temperature of the air is significantly reduced, and the moisture content is slightly reduced; the air after temperature reduction and humidity reduction enters a processing side 21 of the dehumidification rotating wheel 2, after isenthalpic processing, the air after processing by the processing side 21 is subjected to humidity reduction and temperature rise, the moisture content of the air is processed to meet the humidity requirement of the environmental working condition, and low dew point air supply is realized; the treated air is powered by blower 72 and exits the housing 1 through blower interface 71.
For the exhaust air at the regeneration side 22, the external air enters the interior of the casing 1 after being filtered by the second air inlet interface device 51 and the second filtering device 52, and is heated and warmed in the condensing device 61; the auxiliary heating device 62 determines whether to be operated according to a control command of the control device 11, if the auxiliary heating device 62 is in an operating state, the air is further heated in the auxiliary heating device 62 and enters the regeneration side 22 of the desiccant rotor 2, the moisture molecules in the processing side 21 are desorbed from the regeneration side 22 along with the heated high-temperature air through the heat and mass exchange of the desiccant rotor 2, the moisture contained in the air during processing is transferred to the regeneration side 22 to be discharged, a good dehumidification effect of the processing side 21 is ensured, and finally, the high-temperature and high-humidity air is discharged from the exhaust interface device 81 under the power action of the exhaust fan 82.
For the refrigeration cycle, the compressor 43 discharges low-temperature and low-pressure gas working medium into high-temperature and high-pressure gas, the air on the regeneration side 22 is heated by the heat dissipation of the condensing device 61, the refrigerant is condensed and phase-changed into liquid, then enters the throttling device 42 under the action of pressure difference, the refrigerant is decompressed to low pressure by the throttling device 42, the low-temperature and low-pressure working medium absorbs heat in the evaporating device 41 and is phase-changed again, the air on the treatment side 21 is cooled and dehumidified after absorbing heat, and the refrigerant is changed into a low-temperature and low-pressure state and enters the compressor 43 to enter the next refrigeration cycle; the heat of the inlet air can be recycled to heat the inlet air at the regeneration side 22, 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, an access door 12 and one or more access windows 13 are formed on the housing 1, and the access door 12 and the access window 13 are arranged to facilitate maintenance personnel to maintain the electrical components and the equipment devices in the housing 1; in one embodiment, two access panels are provided on the housing 1.
Referring to fig. 4 to fig. 7, the present invention further provides a control method of a dehumidifier unit, where the control method is used to implement the operation control of the dehumidifier unit, the heating mechanism further includes a pressure detection device for obtaining the real-time condensing pressure of the condensing device 61, and the control method includes the steps of:
s100, setting an appropriate range of condensation pressure in the control device 11 in advance; the suitable range can comprise a maximum condensing pressure value, a minimum condensing pressure value and pressure control precision, and when the real-time pressure value falls into the range from the minimum condensing pressure value-pressure control precision to the maximum condensing pressure value + pressure control precision, the real-time pressure value is indicated to fall into the suitable range; the suitable range can be set and adjusted by workers according to the requirements of the environment working conditions.
S120, the control device 11 obtains a real-time pressure value fed back by the pressure detection device;
s130, the control device 11 adjusts the opening degree of the throttling device 42 according to the real-time pressure value, so that the real-time pressure value is stabilized in a preset appropriate range of condensing pressure, and the temperature of the inlet air of the regeneration side 22 heated by the condensing device 61 is stabilized in an appropriate temperature range; specifically, when the real-time pressure value is lower than the suitable range, that is, lower than the minimum condensing pressure value-pressure control precision, the control device 11 controls the opening of the throttling device 42 to be smaller, and the heating effect of the condensing device 61 on the regenerated inlet air is enhanced; when the real-time pressure value is higher than the suitable range, that is, higher than the maximum condensing pressure value plus the pressure control precision, the control device 11 controls the opening of the throttling device 42 to increase, and the heating effect of the condensing device 61 on the regenerated inlet air is weakened.
The application discloses control method, according to the real-time pressure value of pressure detection device feedback and the aperture of preset condensation pressure fit range adjustment throttling arrangement 42, with the heating effect of adjustment condensing equipment 61 to the regeneration inlet air, make the temperature of the air after condensing equipment 61 handles stabilize in the fit range, ensure that the processing side 21 of dehumidification runner 2 keeps the dehumidification effect of preferred, realize the priority control of humidity parameter, the air of processing side 21 output satisfies the humidity demand of environmental condition, user's use experience has been improved.
Further, referring to fig. 5, the dehumidifier unit further includes a first air inlet detection device for obtaining an air inlet 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, and the auxiliary heating device 62 is arranged at the air inlet end of the regeneration side 22 of the desiccant rotor; the control method further comprises the steps of:
s200, the control device 11 obtains the air outlet dew point temperature requirement of the dehumidification rotating wheel processing side 21;
s210, the control device 11 adjusts the working state of the auxiliary heating device 62 according to the real-time air inlet parameter fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement; the air inlet parameter can be the air inlet dry bulb temperature or the air inlet wet bulb temperature; in the step, the air inlet parameter is the temperature of the air inlet dry bulb; the working personnel sets the ideal air inlet dry bulb temperature in the control device 11 according to the air outlet dew point temperature requirement, and when the real-time air inlet dry bulb temperature is lower than the ideal air inlet dry bulb temperature, the control device 11 raises the heating temperature of the auxiliary heating device 62, namely the auxiliary heating device 62 provides more heat; when the real-time inlet air dry bulb temperature is greater than the ideal inlet air dry bulb temperature, the control device 11 decreases the heating temperature of the auxiliary heating device 62, that is, the heat provided by the auxiliary heating device 62 decreases.
The control method disclosed by the application can adjust the working state of the auxiliary heating device 62 according to the air-out dew point temperature requirement of the processing side 21 of the dehumidifying rotor or according to the air-out humidity requirement of the processing side 21, and ensures that the air temperature of the regeneration side 22 is high enough to realize the effective desorption of the water vapor molecules of the processing side 21, thereby ensuring that the processing side 21 of the dehumidifying rotor 2 keeps a better dehumidifying effect, and ensuring that the air processed by the processing side 21 meets the humidity requirement of the environmental working condition.
Further, please refer to fig. 6, the dehumidifier unit further includes a second air inlet detection device for obtaining an air inlet parameter of the dehumidification rotor processing side 21 and an air supply detection device for obtaining an air supply parameter of the dehumidification rotor processing side 21; the control method further comprises the steps of:
setting an ideal air inlet parameter of the dehumidification turning wheel processing side 21 and an ideal air supply parameter of the dehumidification turning wheel processing side 21 in the control device 11 in advance;
s311, setting an ideal air inlet parameter of the dehumidification turning wheel processing side 21 in the control device 11 in advance, wherein the air inlet parameter can be air inlet dry bulb temperature or air inlet wet bulb temperature;
s312, the control device 11 obtains the real-time air inlet parameter 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 parameter and the ideal air inlet parameter; specifically, the control device 11 adopts a PID adjustment mode, and when the difference between the real-time air intake parameter and the ideal air intake parameter is greater than a preset difference, the control device 11 controls the working frequency of the blower 72 to be increased, and the rotating speed of the blower 72 is increased; when the difference between the real-time air inlet parameter and the ideal air inlet parameter is smaller than the preset difference, the control device 11 controls the operating frequency of the blower 72 to be reduced, and the rotating speed of the blower 72 is reduced.
S321, setting an ideal air supply parameter of the dehumidification turning wheel processing side 21 in the control device 11 in advance, wherein the air supply parameter may be an air supply dry bulb temperature or an air supply wet bulb temperature;
s322, the control device 11 acquires the 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 the ideal air supply parameters; specifically, the control device 11 adopts a PID adjustment 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 operating frequency of the air blower 72 to decrease, 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 operating frequency of the air blower 72 to be increased, and the rotation speed of the air blower 72 is increased.
According to the control method, the working state of the air feeder 72 is adjusted according to the air inlet parameter or the air supply parameter, intelligent dynamic air supply of the dehumidification unit can be achieved, and the stability and the reliability of the dehumidification unit during 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 air exhaust mechanism to start operation;
s410, when the working time of the air exhaust mechanism is consistent with the air exhaust time 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 air exhaust time period may be 20 seconds, and may be set by an operator according to the working environment of the dehumidification unit.
According to the control method disclosed by the application, before the dehumidification unit formally starts to work, namely before the processing side 21 starts to supply air, the control device 11 firstly controls the exhaust fan 82 of the exhaust mechanism to work for a certain time, so that water vapor accumulated in the process of stopping the regeneration side 22 of the dehumidification rotating wheel can be exhausted out of the shell 1, and the normal work of the dehumidification rotating wheel 2 is ensured.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (10)
1. A dehumidification unit is characterized by comprising a shell, wherein a control device, a dehumidification rotating wheel, a first air inlet mechanism, a second air inlet mechanism, a heating mechanism, an air supply mechanism, an air exhaust mechanism and a cooling mechanism are arranged in the shell, and the heating mechanism, the air supply mechanism, the air exhaust mechanism and the cooling mechanism are respectively and electrically connected with the control device; the first air inlet mechanism, the cooling mechanism, the processing side of the dehumidification rotating wheel 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 dehumidification rotating wheel and the air exhaust mechanism are sequentially arranged along the air exhaust direction; the cooling mechanism is connected with the heating mechanism.
2. The dehumidifier unit according to claim 1, wherein the heating mechanism comprises a condensing device, the cooling mechanism comprises an evaporating device, a compressor and a throttling 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 compressor and the throttling device are respectively electrically connected with the control device.
3. A dehumidifier unit according to claim 2 wherein the heating mechanism further comprises an auxiliary heating device electrically connected to the control device, and the condensing device, the auxiliary heating device and the regeneration side of the desiccant rotor are sequentially arranged along the exhaust direction.
4. A dehumidifier unit according to claim 3 wherein the first air inlet mechanism includes a first air inlet interface device and a first filter device, and the first air inlet interface device, the first filter device, the evaporator device and the processing side of the desiccant rotor are arranged in sequence along the air supply direction; the second air inlet mechanism comprises a second air inlet interface device and a second filtering device, and the second air inlet interface device, the second filtering device and the heating mechanism are sequentially arranged along the air exhaust direction.
5. The dehumidifier unit of claim 1, wherein the air supply mechanism comprises an air supply interface device and an air supply machine, and the processing side of the dehumidification rotor, the air supply machine and the air supply interface device are arranged in sequence along the air supply direction; the exhaust mechanism comprises an exhaust interface device and an exhaust fan, and the regeneration side of the dehumidification rotating wheel, the exhaust fan and the exhaust interface device are sequentially arranged along the exhaust direction.
6. A dehumidifier unit according to claim 1 wherein the housing defines an access door and one or more access windows.
7. A control method of a dehumidification unit, wherein the control method is used for realizing the operation control of the dehumidification unit according to any one of claims 2 to 6, the heating mechanism further comprises a pressure detection device for acquiring the real-time condensation pressure of a condensation device, and the control method comprises the following steps: setting a suitable range of condensing pressure in the control device in advance;
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 condensing pressure.
8. The control method according to claim 7, wherein the dehumidifier unit further comprises a first inlet air detection device for obtaining a regeneration side inlet air parameter of the desiccant rotor; the heating mechanism comprises an auxiliary heating device electrically connected with the control device, and the auxiliary heating device is arranged at an air inlet end of the regeneration side of the dehumidification rotating wheel; the control method further comprises the steps of:
the control device acquires the temperature requirement of the outlet air dew point at the processing side of the dehumidification rotating wheel;
the control device adjusts the working state of the auxiliary heating device according to the real-time air inlet parameter fed back by the first air inlet detection device and the preset air outlet dew point temperature requirement.
9. The control method according to claim 7, wherein the dehumidifier unit further comprises a second air inlet detection device for obtaining a parameter of side inlet air for processing by the desiccant rotor and an air supply detection device for obtaining a parameter of side air supply for processing by the desiccant rotor; the control method further comprises the steps of:
setting ideal air inlet parameters of a dehumidification rotating wheel processing side and ideal air supply parameters of the dehumidification rotating wheel processing side in a control device in advance;
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 the ideal air inlet parameters;
or the control device acquires 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.
10. The control method according to claim 7, characterized by further comprising the step of:
when the control device receives a control instruction for starting dehumidification, the control device firstly controls the air exhaust mechanism to start working;
when the working time of the air exhaust mechanism is consistent with the air exhaust time preset in the control device, the control device controls the air supply mechanism to start working.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210465942.1A CN114777225A (en) | 2022-04-29 | 2022-04-29 | Dehumidification unit and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210465942.1A CN114777225A (en) | 2022-04-29 | 2022-04-29 | Dehumidification unit and control method thereof |
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| CN114340334A (en) * | 2021-12-21 | 2022-04-12 | 广东申菱环境系统股份有限公司 | Indirect evaporation refrigeration system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203586436U (en) * | 2013-06-19 | 2014-05-07 | 上海荷迪思湿度控制设备有限公司 | Waste heat recovery energy-efficient type rotating wheel dehumidifier |
| CN105465914A (en) * | 2014-09-11 | 2016-04-06 | 南京五洲制冷集团有限公司 | Low-temperature regeneration combined type turning wheel dehumidifying unit |
| CN106338113A (en) * | 2015-07-06 | 2017-01-18 | 中南大学 | Hybrid refrigeration-turning wheel dehumidification device |
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