CN113945087B - Method and device for dehumidification, electronic equipment and storage medium - Google Patents
Method and device for dehumidification, electronic equipment and storage medium Download PDFInfo
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- CN113945087B CN113945087B CN202111205832.3A CN202111205832A CN113945087B CN 113945087 B CN113945087 B CN 113945087B CN 202111205832 A CN202111205832 A CN 202111205832A CN 113945087 B CN113945087 B CN 113945087B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- General Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The application relates to the technical field of drying control, and discloses a method for dehumidification, which is applied to a heat pump dryer and comprises the following steps: determining the drying characteristics of the materials to be dried in the drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material. The application also discloses a device for dehumidification, electronic equipment and a storage medium.
Description
Technical Field
The present application relates to the field of drying control technologies, and for example, to a method and an apparatus for dehumidification, an electronic device, and a storage medium.
Background
At present, when a heat pump dryer is used for drying materials to be dried in a drying room, in order to ensure the drying effect of the materials to be dried, the drying room needs to be subjected to dehumidification treatment.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
because the stoving characteristic diverse of the material of waiting to dry of difference, do not consider the stoving characteristic of the material of waiting to dry when carrying out dehumidification processing to the baking house among the prior art, lead to the dehumidification effect to the material of waiting to dry of different stoving characteristics relatively poor.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a dehumidification method and device, electronic equipment and a storage medium, so that materials to be dried with different drying characteristics can be well dehumidified.
In some embodiments, the method for dehumidifying is applied to a heat pump dryer, and the method includes: determining the drying characteristics of the materials to be dried in the drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring a target dehumidification amount and a target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time.
In some embodiments, the device for dehumidifying is applied to a heat pump dryer, and the device for dehumidifying includes: the drying room comprises a determining module, a drying module and a control module, wherein the determining module is configured to determine the drying characteristics of materials to be dried in the drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; the acquisition module is configured to acquire a target dehumidification amount and a target dehumidification time corresponding to the material to be dried according to the drying characteristics; a control module configured to control the heat pump dryer to perform dehumidification according to the target dehumidification water amount and the target dehumidification time.
In some embodiments, the apparatus for dehumidifying includes a processor and a memory storing program instructions, the processor being configured to execute the above-described method for dehumidifying when executing the program instructions.
In some embodiments, the electronic device comprises the above-described means for dehumidifying.
In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for dehumidification.
The method and the device for dehumidification, the electronic equipment and the storage medium provided by the embodiment of the disclosure can realize the following technical effects: determining the drying characteristics of the materials to be dried in the drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:
FIG. 1 is a schematic diagram of a method for dehumidification provided by embodiments of the present disclosure;
FIG. 2 is a schematic diagram of a heat pump dryer provided in accordance with an embodiment of the present disclosure;
fig. 3 is a schematic circuit diagram of a heat pump dryer according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a method for determining the water loss of material to be dried according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of an apparatus for removing moisture provided by embodiments of the present disclosure;
fig. 6 is a schematic view of another device for dehumidification provided by an embodiment of the present disclosure.
Reference numerals:
1: a first evaporator; 2: a second evaporator; 3: a first gas-liquid separator; 4: a second gas-liquid separator; 5: a first low-voltage switch; 6: a second low voltage switch; 7: a first compressor; 8: a second compressor; 9: a first high voltage switch; 10: a second high voltage switch; 11: a first condenser; 12: a second condenser; 13: a first filter; 14: a second filter; 15: an internal dehumidifying evaporator; 16: a first electronic expansion valve; 17: a second electronic expansion valve; 18: a third electronic expansion valve; 19: a control unit; 20: a wet and dry bulb temperature sensor; 21: an internal dehumidification evaporator side fan.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
Referring to fig. 1, an embodiment of the present disclosure provides a method for dehumidification, applied to a heat pump dryer, the method including:
step S101, determining the drying characteristics of materials to be dried in a drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried.
And S102, acquiring a target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics.
And step S103, controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time.
By adopting the method for dehumidifying provided by the embodiment of the disclosure, the drying characteristics of the materials to be dried in the drying room are determined; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material.
Optionally, determining the material to be dried includes: and acquiring an image of the material to be dried, and identifying the image of the material to be dried.
Optionally, determining the material to be dried includes: and acquiring material information input by a user, wherein the material information is used for representing the material to be dried.
Optionally, determining the drying characteristics of the material to be dried in the drying room includes: matching the drying characteristics corresponding to the materials to be dried from a preset database, wherein the database stores the corresponding relation between the materials to be dried and the drying characteristics.
Optionally, the material to be dried is tobacco leaves.
Alternatively, as shown in fig. 2, the heat pump dryer includes a first drying system and a second drying system, the first drying system includes a first compressor 7, a first electronic expansion valve 16, a first evaporator 1, a first filter 13, a first condenser 11, a first low-pressure switch 5, a first high-pressure switch 9, and a first gas-liquid separator 3, and the second drying system includes a second compressor 8, a second electronic expansion valve 17, an internal dehumidification evaporator 15, a third electronic expansion valve 18, a second evaporator 2, a second filter 14, a second condenser 12, a second low-pressure switch 6, a second high-pressure switch 10, and a second gas-liquid separator 4. One end of a first compressor is connected with one end of a first high-pressure switch, the other end of the first compressor is connected with one end of a first low-pressure switch, the other end of the first low-pressure switch is connected with one end of a first gas-liquid separator, the other end of the first gas-liquid separator is connected with one end of a first evaporator, the other end of the first evaporator is connected with one end of a first electronic expansion valve, the other end of the first electronic expansion valve is connected with one end of a first filter, the other end of the first filter is connected with one end of a first condenser, and the other end of the first condenser is connected with the other end of the first high-pressure switch; one end of a second compressor is connected with one end of a second high-pressure switch, the other end of the second compressor is connected with one end of a second low-pressure switch, the other end of the second low-pressure switch is connected with one end of a second gas-liquid separator, the other end of the second gas-liquid separator is connected with one end of a second evaporator, the other end of the second evaporator is connected with one end of a second electronic expansion valve, the other end of the second electronic expansion valve is connected with one end of a second filter, the other end of the second filter is connected with one end of a second condenser, and the other end of the second condenser is connected with the other end of the second high-pressure switch; the other end of the second electronic expansion valve is also connected with one end of a third electronic expansion valve, the other end of the third electronic expansion valve is connected with one end of an internal dehumidification evaporator, and the other end of the internal dehumidification evaporator is connected with one end of the second evaporator.
Like this, through setting up first vapour and liquid separator and second vapour and liquid separator, can follow the gas-liquid that flows out in first evaporimeter and the second evaporimeter with liquid and gas separation, prevent that liquid refrigerant from getting into first compressor and second compressor and arousing the hydrops, can guarantee first compressor and second compressor normal operating, avoid leading to first compressor and second compressor trouble because of the hydrops.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating an electrical circuit principle of a heat pump dryer according to an embodiment of the present disclosure; in some embodiments, the first compressor 7, the second compressor 8, the first electronic expansion valve 16, the second electronic expansion valve 17, the third electronic expansion valve 18, the wet and dry bulb temperature sensor 20, and the internal dehumidification evaporator side fan 21 are controlled by the control unit 19. The control unit controls the opening of the first electronic expansion valve to enable the first drying system to heat; the second electronic expansion valve is arranged between the second evaporator and the second filter, the third electronic expansion valve is arranged between the inner dehumidifying evaporator and the second filter, and the control unit controls the second electronic expansion valve to be opened and the third electronic expansion valve to be closed so that the second drying system can heat; the control unit controls the second electronic expansion valve to be closed and the third electronic expansion valve to be opened, so that the second drying system performs dehumidification; the dry-wet bulb temperature sensor is arranged in the drying room and used for monitoring the dry bulb temperature and the wet bulb temperature in the drying room and feeding back the dry bulb temperature and the wet bulb temperature to the control unit; the inner dehumidification evaporator side fan is arranged outside the inner dehumidification evaporator and is used for controlling air to blow towards the inner dehumidification evaporator.
Optionally, a dry-wet-bulb temperature sensor is arranged in the drying room and used for monitoring the wet-bulb temperature and the dry-bulb temperature in the drying room; the heat pump dryer comprises a first drying system and a second drying system, wherein the first drying system is used for heating the drying room under control, and the second drying system is used for heating and/or dehumidifying the drying room under control; controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time, comprising: acquiring the wet bulb temperature and the dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of the system; acquiring a water content change value in the drying room according to the wet-bulb temperature and the dry-bulb temperature; acquiring the water loss amount of the material to be dried according to the water content change value; under the condition that the system operation time is within a preset first time range and the water loss amount is within a preset first water removal amount range, triggering a first drying system to heat the drying room, and triggering a second drying system to heat and dehumidify the drying room; the first time range is obtained according to the target dehumidification time, and the first water removal amount range is obtained according to the target water removal amount.
Optionally, the first time range is obtained according to a target dehumidification time, comprising: and if the system running time is t and the target dehumidification time is tc, the first time range is t less than 3tc/4.
Optionally, the first range of water removal amounts is obtained from a target water removal amount, comprising: and determining the water loss amount of the material to be dried as G and the target water removal amount as Gm, and determining '0-Gm' as a first water removal amount range.
Optionally, the first drying system comprises a first compressor; at system's operating time in the first time span of presetting, and lose under the condition that the water yield is in the first water removal volume scope of presetting, trigger first drying system and heat the baking house, include: and triggering the first compressor to start so as to heat the first drying system.
Optionally, the second drying system comprises a second compressor, a second electronic expansion valve, an internal dehumidifying evaporator and a third electronic expansion valve, the internal dehumidifying evaporator is used for controlled dehumidification; at system's operating time in the first time span of presetting, and lose under the condition that the water yield is in the first water removal volume scope of presetting, trigger second drying system and heat and dehumidify the baking house, include: triggering the second compressor to start, triggering the second electronic expansion valve to open, triggering the inner dehumidification evaporator to dehumidify, and triggering the third electronic expansion valve to open to enable the second drying system to heat and dehumidify.
Like this, through being in the condition of first dewatering volume scope at the dewatering volume, trigger first compressor and second compressor and start, can make the condensation heat release fast for the release of moisture in waiting to dry the material, thereby accelerate dehumidification speed.
Optionally, the heat pump dryer includes an internal dehumidification evaporator side fan, and further includes, in a case where the system operation time is within a preset first time range and the water loss amount is within a preset first water removal amount range: and adjusting the air quantity of a side fan of the internal dehumidification evaporator to the maximum. Therefore, the dehumidification speed can be accelerated by adjusting the air quantity of the fan at the side of the internal dehumidification evaporator to be the maximum.
Optionally, the second drying system includes a second compressor, and after controlling the heat pump dryer to dehumidify according to the target dehumidification water amount and the target dehumidification time, the second drying system further includes: monitoring the temperature of the drying room according to the dry-wet bulb temperature sensor to obtain the wet bulb temperature and the dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of a system; acquiring a water content change value in the drying room according to the wet-bulb temperature and the dry-bulb temperature; determining the water loss amount of the material to be dried according to the water content change value; under the condition that the system operation time is in a preset second time range and the water loss amount is in a preset second water removal amount range, triggering the frequency of a press of a second compressor to reduce a first preset value every other preset time period, and triggering the rotating speed of a fan at the side of an inner dehumidification evaporator to reduce a second preset value every other preset time period until the system operation time is the same as the target dehumidification time and the water loss amount is the same as the target water removal amount; the second time range is obtained according to the target dehumidification time, and the second water removal amount range is obtained according to the target water removal amount.
Optionally, the second time range is obtained according to a target dehumidification time, comprising: and the system operation time is t, the target dehumidification time is tc, and the second time range is 3tc/4 < t < tc.
Optionally, the second water removal amount range is obtained according to a target water removal amount, and comprises: and G is the water loss amount of the material to be dried, and Gm is the target water removal amount, and the second water removal amount ranges from Gm-5 to G and Gm.
Optionally, the preset time period is 30min-60min. Optionally, the first predetermined value is 5hz. Optionally, the second predetermined value is 100.
Like this, through be in the second amount of water removal within range at the amount of water removal, promptly the amount of water removal is about to reach the condition of target amount of water removal, adjust the second compressor frequency, can reduce the dehumidification volume of heat pump drying-machine to avoid excessive dehumidification.
Optionally, wet bulb temperature includes wet bulb temperature of air intake and wet bulb temperature of air outlet, and dry bulb temperature includes dry bulb temperature of air intake and dry bulb temperature of air outlet, obtains the interior water content variation value of baking house according to wet bulb temperature and dry bulb temperature, includes: acquiring the moisture content of the air inlet mouth of the drying room according to the temperature of the dry bulb at the air inlet and the temperature of the wet bulb at the air inlet, and acquiring the moisture content of the air outlet mouth of the drying room according to the temperature of the dry bulb at the air outlet and the temperature of the wet bulb at the air outlet; and acquiring a water content change value in the drying room according to the air inlet mouth moisture content and the air outlet mouth moisture content.
Optionally, both the air inlet and the air outlet of the drying room are provided with dry and wet bulb temperature sensors.
Optionally, obtaining an air inlet mouth moisture content of the drying room according to the air inlet dry-bulb temperature and the air inlet wet-bulb temperature includes: and calculating by using the dry bulb temperature and the wet bulb temperature of the air inlet according to a first preset algorithm to obtain the moisture content of the air inlet mouth of the drying room.
Optionally, calculating by using the dry-bulb temperature of the air inlet and the wet-bulb temperature of the air inlet according to a first preset algorithm to obtain the moisture content of the air inlet mouth of the drying room, and the calculating includes: by calculation of
Wherein, d in Moisture content in the air inlet of the drying room, c p,a Constant specific volume for dry air, c p,v Is the specific volume of water vapor under constant pressure, tw 'is the temperature of the wet bulb of the air inlet, td' is the temperature of the dry bulb of the air inlet, d s ' is the saturated moisture content corresponding to the inlet dry bulb temperature, and gamma is the latent heat of vaporization of water.
Optionally, the saturated moisture content corresponding to the inlet dry bulb temperature is obtained according to the following modes, including: by calculating
Obtaining saturated moisture content corresponding to the temperature of the dry ball of the air inlet; wherein d is s ' is the saturated moisture content, p, corresponding to the inlet dry bulb temperature s ' is the saturation pressure corresponding to the inlet dry bulb temperature, and p is the atmospheric pressure.
Optionally, the saturation pressure corresponding to the inlet dry bulb temperature is obtained according to the following modes: by calculation of
Obtaining saturation pressure corresponding to the temperature of the dry bulb at the air inlet; wherein p is s 'is the saturation pressure corresponding to the inlet dry bulb temperature, td' is the inlet dry bulb temperature, c 1 、c 2 、c 3 、c 4 、c 5 、c 6 、c 7 Both are saturation pressure calculation coefficients.
In some embodiments, the saturation pressure calculation coefficient is obtained by looking up table 1. Table 1 is an example table of the saturation pressure calculation coefficient.
TABLE 1
Shown in table 1, table 1 is an example table of the saturation pressure calculation coefficient; in some embodiments, c is Td' > 0 or Td "> 0 1 The corresponding saturation pressure calculation coefficient is-5.68 x 10 3 (ii) a In the case of Td' < 0 or Td "< 0, c 1 The corresponding saturation pressure calculation coefficient is-5.68 x 10 3 (ii) a In the case of Td' > 0 or Td "> 0, c 2 The corresponding saturation pressure calculation coefficient is 6.39; in the case of Td' < 0 or Td "< 0, c 2 The corresponding saturation pressure calculation coefficient was 1.39.
Optionally, acquiring the moisture content of the outlet air of the drying room according to the air outlet dry bulb temperature and the air outlet wet bulb temperature includes: calculating by using the dry bulb temperature of the air outlet and the wet bulb temperature of the air outlet according to a second preset algorithm to obtain the moisture content of the air outlet mouth of the drying room,the method comprises the following steps: by calculation of
Wherein d is out Moisture content in the air outlet of the drying room, c p,a Constant pressure specific volume for dry air, c p,v Is the specific volume of water vapor under constant pressure, tw is the temperature of the wet bulb at the air outlet, td is the temperature of the dry bulb at the air outlet, d s "is the saturated moisture content corresponding to the temperature of the air outlet dry bulb, and gamma is the latent heat of vaporization of water.
Optionally, the saturated moisture content corresponding to the outlet dry bulb temperature is obtained according to the following manner, including: by calculation of
Obtaining saturated moisture content corresponding to the temperature of the air outlet dry bulb; wherein d is s "is the saturated moisture content, p, corresponding to the temperature of the dry bulb at the air outlet s "is the saturation pressure corresponding to the temperature of the air outlet dry bulb, and p is the atmospheric pressure.
Optionally, the saturation pressure corresponding to the outlet dry bulb temperature is obtained according to the following manner, including: by calculation of
Obtaining saturation pressure corresponding to the temperature of the air outlet dry bulb; wherein p is s "is the saturation pressure corresponding to the temperature of the air outlet dry bulb, td" is the temperature of the air outlet dry bulb, c 1 、c 2 、c 3 、c 4 、c 5 、c 6 、c 7 Both are saturation pressure calculation coefficients.
Optionally, the moisture content change value in the baking house is acquireed according to air inlet mouth moisture content and air outlet mouth moisture content, includes: and calculating by utilizing the moisture content of the air inlet mouth and the moisture content of the air outlet mouth according to a third preset algorithm to obtain a moisture content change value in the drying room.
Optionally, calculating by using the moisture content of the air intake mouth and the moisture content of the air outlet mouth according to a third preset algorithm to obtain a moisture content change value in the drying room, including: by calculating
Obtaining the change value of the water content in the drying room; wherein the content of the first and second substances,
is the water content variation value in the drying room, rho is the air density, Q air Is the air volume d in Moisture content in the air inlet of the drying room, d out The moisture content of the air outlet mouth of the drying room.
Optionally, determining the water loss amount of the material to be dried according to the water content change value includes: acquiring system water discharge corresponding to the heat pump dryer; and summing the water content change value and the system water discharge to obtain the water loss of the material to be dried.
Optionally, obtaining a system displacement corresponding to the heat pump dryer includes: and acquiring the system running time of the heat pump dryer, acquiring the condensed water quantity of the heat pump dryer under the system running time, and determining the condensed water quantity of the heat pump dryer as the system water discharge quantity corresponding to the heat pump dryer.
With reference to fig. 4, an embodiment of the present disclosure provides a method for determining a water loss amount of materials to be dried, which is applied to a heat pump dryer, and includes:
step S401, acquiring wet bulb temperature and dry bulb temperature; the wet bulb temperature comprises an air inlet wet bulb temperature and an air outlet wet bulb temperature, and the dry bulb temperature comprises an air inlet dry bulb temperature and an air outlet dry bulb temperature.
And S402, acquiring the moisture content of the air inlet mouth of the drying room according to the air inlet dry-bulb temperature and the air inlet wet-bulb temperature, and acquiring the moisture content of the air outlet mouth of the drying room according to the air outlet dry-bulb temperature and the air outlet wet-bulb temperature.
And S403, acquiring a water content change value in the drying room according to the moisture content of the air inlet mouth and the moisture content of the air outlet mouth.
And S404, acquiring system water discharge corresponding to the heat pump dryer, and summing the water content change value and the system water discharge to obtain the water loss of the material to be dried.
By adopting the water loss amount determining method and device for determining the material to be dried, the water loss amount of the material to be dried can be more accurately obtained by obtaining the air inlet wet-bulb temperature, the air outlet wet-bulb temperature, the air inlet dry-bulb temperature and the air outlet dry-bulb temperature.
Referring to fig. 5, an embodiment of the present disclosure provides an apparatus for dehumidifying in a heat pump dryer, where the apparatus for dehumidifying includes: a determining module 501, an obtaining module 502 and a control module 503; the determining module 501 is configured to determine a drying characteristic of a material to be dried in a drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; the obtaining module 502 is configured to obtain a target dehumidification amount and a target dehumidification time corresponding to the material to be dried according to the drying characteristics; the control module 503 is configured to control the heat pump dryer to perform dehumidification according to the target dehumidification water amount and the target dehumidification time.
By adopting the device for dehumidification provided by the embodiment of the disclosure, the drying characteristics of the materials to be dried in the drying room are determined through the determining module, the obtaining module obtains the target dehumidification amount and the target dehumidification time corresponding to the materials to be dried according to the drying characteristics, and the control module controls the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material.
Optionally, a dry-wet bulb temperature sensor is arranged in the drying room and used for monitoring the wet bulb temperature and the dry bulb temperature in the drying room; the heat pump dryer comprises a first drying system and a second drying system, wherein the first drying system is used for heating the drying room under control, and the second drying system is used for heating and/or dehumidifying the drying room under control; the control module is configured to control the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time in the following way, obtain the wet bulb temperature and the dry bulb temperature, and monitor the running time of the heat pump dryer to obtain the system running time; acquiring a water content change value in the drying room according to the wet-bulb temperature and the dry-bulb temperature; acquiring the water loss amount of the material to be dried according to the water content change value; under the condition that the system operation time is within a preset first time range and the water loss amount is within a preset first water removal amount range, triggering a first drying system to heat the drying room, and triggering a second drying system to heat and dehumidify the drying room; the first time range is obtained according to the target dehumidification time, and the first water removal amount range is obtained according to the target water removal amount.
Optionally, the heat pump dryer includes an internal dehumidification evaporator side fan, and further includes, in a case where the system operation time is within a preset first time range and the water loss amount is within a preset first water removal amount range: and adjusting the air quantity of a side fan of the internal dehumidification evaporator to the maximum.
Optionally, the second drying system includes a second compressor, and after controlling the heat pump dryer to dehumidify according to the target dehumidification water amount and the target dehumidification time, the second drying system further includes: monitoring the temperature of the drying room according to the dry-wet bulb temperature sensor to obtain the wet bulb temperature and the dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of the system; acquiring a water content change value in the drying room according to the wet-bulb temperature and the dry-bulb temperature; determining the water loss amount of the material to be dried according to the water content change value; under the condition that the system operation time is in a preset second time range and the water loss amount is in a preset second water removal amount range, triggering the frequency of a press of a second compressor to reduce a first preset value every other preset time period, and triggering the rotating speed of a fan at the side of an inner dehumidification evaporator to reduce a second preset value every other preset time period until the system operation time is the same as the target dehumidification time and the water loss amount is the same as the target water removal amount; the second time range is obtained according to the target dehumidification time, and the second water removal amount range is obtained according to the target water removal amount.
Optionally, wet bulb temperature includes wet bulb temperature of air intake and wet bulb temperature of air outlet, and dry bulb temperature includes dry bulb temperature of air intake and dry bulb temperature of air outlet, obtains the interior water content variation value of baking house according to wet bulb temperature and dry bulb temperature, includes: acquiring the moisture content of an air inlet mouth of the drying room according to the temperature of the dry bulb of the air inlet and the temperature of the wet bulb of the air inlet, and acquiring the moisture content of an air outlet mouth of the drying room according to the temperature of the dry bulb of the air outlet and the temperature of the wet bulb of the air outlet; and acquiring a water content change value in the drying room according to the air inlet mouth moisture content and the air outlet mouth moisture content.
Optionally, determining the water loss amount of the material to be dried according to the water content change value includes: acquiring system water discharge corresponding to the heat pump dryer; and summing the water content change value and the system water discharge to obtain the water loss of the material to be dried.
Optionally, acquiring a system water displacement corresponding to the heat pump dryer includes: and acquiring the condensed water quantity of the heat pump dryer, and determining the condensed water quantity of the heat pump dryer as the system water discharge quantity corresponding to the heat pump dryer.
As shown in fig. 6, an apparatus for dehumidifying according to an embodiment of the present disclosure includes a processor (processor) 600 and a memory (memory) 601 storing program instructions. Optionally, the apparatus may also include a Communication Interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via a bus 603. The communication interface 602 may be used for information transfer. The processor 600 may call program instructions in the memory 601 to perform the method for dehumidification of the above-described embodiments.
By adopting the device for dehumidification provided by the embodiment of the disclosure, the drying characteristics of the materials to be dried in the drying room are determined; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material.
In addition, the program instructions in the memory 601 may be implemented in the form of software functional units and stored in a readable storage medium when the program instructions are sold or used as independent products.
The memory 601 is a storage medium and can be used for storing software programs, executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes functional applications and data processing by executing program instructions/modules stored in the memory 601, that is, implements the method for dehumidification in the above-described embodiments.
The memory 601 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 601 may include a high speed random access memory, and may also include a non-volatile memory.
The embodiment of the disclosure provides an electronic device, which includes the above device for dehumidifying.
By adopting the electronic equipment provided by the embodiment of the disclosure, the drying characteristics of the materials to be dried in the drying room are determined; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried; acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics; and controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time. Like this, through the target dehumidification volume and the target dehumidification time that confirm that the stoving characteristic corresponds, can carry out the pertinence dehumidification to the material of waiting to dry of different stoving characteristics to can both carry out better dehumidification to the material of waiting to dry of different stoving characteristics, thereby improve the stoving effect of waiting to dry the material.
Alternatively, the electronic device includes a heat pump dryer or the like.
The disclosed embodiments provide a storage medium storing executable instructions configured to perform the above-described method for dehumidification.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for dehumidifying.
The readable storage medium may be a transitory readable storage medium or a non-transitory readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising a …" does not exclude the presence of additional like elements in a process, method, or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses, and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be only one type of logical functional division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (9)
1. A method for dehumidifying in a heat pump dryer, the method comprising:
determining the drying characteristics of the materials to be dried in the drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried;
acquiring target dehumidification amount and target dehumidification time corresponding to the material to be dried according to the drying characteristics;
controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time;
a dry-wet bulb temperature sensor is arranged in the drying room and used for monitoring the wet bulb temperature and the dry bulb temperature in the drying room; the heat pump dryer comprises a first drying system and a second drying system, wherein the first drying system is used for heating a drying room in a controlled manner, and the second drying system is used for heating and/or dehumidifying the drying room in a controlled manner; controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time, comprising: acquiring wet bulb temperature and dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of the system; acquiring a water content change value in the drying room according to the wet bulb temperature and the dry bulb temperature; acquiring the water loss amount of the material to be dried according to the water content change value; under the condition that the running time of the system is within a preset first time range and the water loss amount is within a preset first water removal amount range, triggering the first drying system to heat the drying room, and triggering the second drying system to heat and dehumidify the drying room; the first time range is obtained according to the target dehumidification time, and the first water removal amount range is obtained according to the target water removal amount.
2. The method of claim 1, wherein the heat pump dryer includes an internal dehumidification evaporator side fan, and further comprising, with the system runtime in a first predetermined time range and the water loss in a first predetermined water removal range:
and adjusting the air quantity of a side fan of the internal dehumidification evaporator to the maximum.
3. The method of claim 2, wherein the second drying system comprises a second compressor, and further comprises, after controlling the heat pump dryer to dehumidify according to the target dehumidification amount and the target dehumidification time:
monitoring the temperature of the drying room according to a dry-wet bulb temperature sensor to obtain the wet bulb temperature and the dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of the system;
acquiring a water content change value in the drying room according to the wet bulb temperature and the dry bulb temperature;
determining the water loss of the material to be dried according to the water content change value;
under the condition that the system running time is in a preset second time range and the water loss amount is in a preset second water removal amount range, triggering the frequency of a press of a second compressor to reduce a first preset value every other preset time period, and triggering the rotating speed of a fan at the side of an inner dehumidification evaporator to reduce a second preset value every other preset time period until the system running time is the same as the target dehumidification time and the water loss amount is the same as the target water removal amount; the second time range is obtained according to the target dehumidification time, and the second water removal amount range is obtained according to the target water removal amount.
4. The method of claim 3, wherein the wet-bulb temperature comprises an inlet wet-bulb temperature and an outlet wet-bulb temperature, the dry-bulb temperature comprises an inlet dry-bulb temperature and an outlet dry-bulb temperature, and the obtaining the moisture content change value in the drying room according to the wet-bulb temperature and the dry-bulb temperature comprises:
acquiring the moisture content of the air inlet mouth of the drying room according to the temperature of the dry bulb of the air inlet and the temperature of the wet bulb of the air inlet, and acquiring the moisture content of the air outlet mouth of the drying room according to the temperature of the dry bulb of the air outlet and the temperature of the wet bulb of the air outlet;
and acquiring a water content change value in the drying room according to the air inlet mouth moisture content and the air outlet mouth moisture content.
5. The method of claim 3, wherein determining the water loss of the material to be dried according to the water content variation value comprises:
acquiring system water discharge corresponding to the heat pump dryer;
and summing the water content change value and the system water discharge to obtain the water loss of the material to be dried.
6. A device for dehumidification, applied to a heat pump dryer, characterized in that it comprises:
the drying system comprises a determining module, a drying module and a control module, wherein the determining module is configured to determine the drying characteristics of materials to be dried in a drying room; the drying characteristic is used for representing the corresponding dehumidification rate of the material to be dried;
the acquisition module is configured to acquire a target dehumidification amount and a target dehumidification time corresponding to the material to be dried according to the drying characteristics;
a control module configured to control the heat pump dryer to perform dehumidification according to the target dehumidification water amount and the target dehumidification time;
a dry-wet bulb temperature sensor is arranged in the drying room and used for monitoring the wet bulb temperature and the dry bulb temperature in the drying room; the heat pump dryer comprises a first drying system and a second drying system, wherein the first drying system is used for heating a drying room in a controlled manner, and the second drying system is used for heating and/or dehumidifying the drying room in a controlled manner; the control module is configured to control the heat pump dryer to dehumidify according to the target dehumidification water amount and the target dehumidification time by: acquiring wet bulb temperature and dry bulb temperature, and monitoring the running time of the heat pump dryer to obtain the running time of the system; acquiring a water content change value in the drying room according to the wet bulb temperature and the dry bulb temperature; acquiring the water loss amount of the material to be dried according to the water content change value; under the condition that the running time of the system is within a preset first time range and the water loss amount is within a preset first water removal amount range, triggering the first drying system to heat the drying room, and triggering the second drying system to heat and dehumidify the drying room; the first time range is obtained according to the target dehumidification time, and the first water removal amount range is obtained according to the target water removal amount.
7. An apparatus for dehumidifying, comprising a processor and a memory storing program instructions, for use in a heat pump dryer, characterized in that the processor is configured to perform the method for dehumidifying as claimed in any one of claims 1 to 5 when executing the program instructions.
8. An electronic device characterized by comprising the apparatus for dehumidifying as claimed in claim 7.
9. A storage medium storing program instructions which, when executed, perform a method for dehumidification according to any one of claims 1 to 5.
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