CN113998864B - Drying equipment control method, module, drying equipment and storage medium - Google Patents

Drying equipment control method, module, drying equipment and storage medium Download PDF

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Publication number
CN113998864B
CN113998864B CN202111228075.1A CN202111228075A CN113998864B CN 113998864 B CN113998864 B CN 113998864B CN 202111228075 A CN202111228075 A CN 202111228075A CN 113998864 B CN113998864 B CN 113998864B
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temperature
drying
air
heating device
value
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CN113998864A (en
Inventor
王雨
谢金坤
舒振国
张建伟
李彦伟
林伟振
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Jereh Environmental Protection Technology Co Ltd
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Jereh Environmental Protection Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00Solid fuels
    • C10L5/40Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/20Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/02Temperature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The application relates to the technical field of sludge treatment and discloses a control method, a module, drying equipment and a storage medium of the drying equipment, wherein the control method of the drying equipment comprises the steps of receiving a control instruction, wherein the control instruction is used for indicating a heat exchange medium in the drying equipment to perform temperature adjustment; according to the control instruction, a temperature adjusting device in the drying equipment is started, the drying equipment comprises an adjusting area and a drying area, the temperature adjusting device is arranged in the adjusting area, and a heat exchange medium is used for carrying out heat transfer between the adjusting area and the drying area; the temperature value of the heat exchange medium in unit time is detected by the temperature detection device, and the temperature regulation device is controlled according to the temperature value to regulate the temperature so that the temperature of the heat exchange medium is in a preset temperature range. The application ensures that the sludge is dried in a proper temperature range, ensures the drying effect of the sludge, and the dried sludge can be directly used as fuel or organic fertilizer, thereby effectively reducing the resource waste.

Description

Drying equipment control method, module, drying equipment and storage medium
Technical Field
The application relates to the technical field of sludge treatment in general, and particularly discloses a drying equipment control method, a drying equipment control module, a drying equipment and a storage medium.
Background
As a derivative of sewage, the sludge yield is continuously increased in recent years, and the sludge effective treatment rate in China is lower contrary to the increasing trend of the sludge yield in successive years. A large number of sewage treatment enterprises adopt direct dumping or simple landfill treatment means to treat sludge, which not only threatens the soil environment and resident health, but also causes resource waste.
Disclosure of Invention
The application provides a drying equipment control method, a module, drying equipment and a storage medium.
In order to achieve the purpose of the invention, the application adopts the following technical scheme:
according to a first aspect of embodiments of the present application, there is provided a drying apparatus control method, the method including:
receiving a control instruction, wherein the control instruction is used for indicating a heat exchange medium in the drying equipment to regulate the temperature;
according to the control instruction, starting a temperature regulating device in the drying equipment, wherein the drying equipment comprises a regulating area and a drying area, the temperature regulating device is arranged in the regulating area, and the heat exchange medium is used for carrying out heat transfer between the regulating area and the drying area;
and detecting the temperature value of the heat exchange medium in unit time by a temperature detection device, and controlling the temperature adjustment device to adjust the temperature according to the temperature value so that the temperature of the heat exchange medium is in a preset temperature range.
According to an embodiment of the present application, the control instruction is a drying instruction, the heat exchange medium is air, and starting the temperature adjusting device in the drying apparatus according to the control instruction includes: starting a heating device in the drying equipment according to the drying instruction;
the temperature value of the heat exchange medium in unit time is detected by the temperature detection device, and the temperature regulation device is controlled to regulate the temperature according to the temperature value, and the temperature regulation device comprises:
determining that the heating device executes a shutdown strategy under the condition that a temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than a first threshold value;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, determining that the heating device executes a cooling strategy;
and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes a heating strategy.
According to an embodiment of the present application, wherein the heating device includes a variable frequency compressor, the cooling strategy is a frequency decrease, and determining, when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold and higher than the maximum value of the preset temperature range, that the heating device performs the cooling strategy includes: when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, controlling the frequency of the variable frequency compressor to be reduced;
When the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than the maximum value of the preset temperature range and smaller than a second threshold value, controlling the frequency of the variable-frequency compressor to reduce a first deviation frequency value;
and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the second threshold value, controlling the frequency of the variable frequency compressor to reduce a second deviation frequency value.
According to an embodiment of the present application, the heating device includes a variable frequency compressor, the temperature raising strategy is a frequency raising, and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes the temperature raising strategy includes: when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, controlling the frequency of the variable frequency compressor to rise;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range and higher than a third threshold value, controlling the frequency of the variable-frequency compressor to rise by a third deviation frequency value;
When the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the third threshold value and higher than a fourth threshold value, controlling the frequency of the variable-frequency compressor to rise by a fourth deviation frequency value;
and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the fourth threshold value, controlling the frequency of the variable frequency compressor to rise by a fifth deviation frequency value.
According to an embodiment of the present application, wherein the method further comprises:
before the heating device executes a heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in a first temperature interval, controlling the temperature of the heating device to rise by a first deviation temperature value;
and before the heating device executes the heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in the second temperature interval, the heating strategy of the heating device is canceled from being executed, or the heating device is controlled to execute the cooling strategy, or the heating device is closed.
According to an embodiment of the present application, when the temperature sensor detects that the air intake temperature of the second air intake side of the drying area is in the second temperature interval before the heating device executes the heating strategy, the executing the heating strategy of the heating device is canceled, or the heating device is controlled to execute the cooling strategy, or the heating device is turned off includes:
And under the condition that the air inlet temperature of the second air inlet side of the drying area is in a second temperature interval, reducing the output temperature of the heating device by a second deviation temperature value every time a target duration passes until the output temperature of the heating device is reduced to the lowest deviation temperature value, and then closing the heating device.
According to an embodiment of the present application, wherein the heating device comprises a variable frequency compressor and a fixed frequency compressor;
when the temperature sensor detects that the temperature of the second air inlet side of the drying area is higher than the highest air supply temperature, the variable frequency compressor is controlled to be closed; or alternatively
And detecting the working state of the variable frequency compressor when the temperature sensor detects that the temperature of the first air inlet side of the drying area is higher than the highest air supply temperature, controlling the variable frequency compressor to be closed if the variable frequency compressor is in an open state, and controlling the fixed frequency compressor to be closed if the variable frequency compressor is in a closed state.
According to a second aspect of embodiments of the present application, there is provided a drying control module, the module including:
the receiving module is used for receiving a control instruction, wherein the control instruction is used for indicating a heat exchange medium in the drying equipment to carry out temperature adjustment;
The first control module is used for starting a temperature regulating device in the drying equipment according to the control instruction, wherein the drying equipment comprises a regulating area and a drying area, the temperature regulating device is arranged in the regulating area, and the heat exchange medium is used for carrying out heat transfer between the regulating area and the drying area; and
the second control module is used for detecting the temperature value of the heat exchange medium in unit time through the temperature detection device, and controlling the temperature adjustment device to adjust the temperature according to the temperature value so that the temperature of the heat exchange medium is in a preset temperature range.
According to a third aspect of the embodiments of the present application, there is provided a drying apparatus, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
and a processor for implementing any of the above-described method steps when executing a program stored on the memory.
According to a fourth aspect of embodiments of the present application, there is provided a computer readable storage medium having stored therein a computer program for performing any of the above-mentioned method steps when being executed by a processor.
According to the technical scheme, the control method of the drying equipment, the module, the drying equipment and the storage medium have the advantages that: the embodiment of the application provides a control method of drying equipment, heat transfer is carried out to mud and the heat transfer medium in the drying equipment, then the temperature of mud is the same with the temperature of heat transfer medium, detect the temperature of heat transfer medium through temperature detection device, and adjust the temperature of heat transfer medium through temperature regulation device, can make the temperature of heat transfer medium be located preset temperature range, promptly, make the temperature of mud be located preset temperature range, make mud dry in suitable temperature range like this, guarantee the stoving effect of mud, the mud after the stoving can directly use as fuel or fertilizer, effectively reduce the wasting of resources.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a flowchart illustrating a method of controlling a drying apparatus according to an exemplary embodiment.
Fig. 2 is a schematic structural view (a) of a drying apparatus according to an exemplary embodiment.
Fig. 3 is a schematic view showing a structure of a control device of a drying apparatus according to an exemplary embodiment; .
Fig. 4 is a schematic view (ii) of a structure of a drying apparatus according to an exemplary embodiment.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
It should be noted that, in the description and claims of the present application and the above figures, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein.
Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present application, and are not of specific significance per se. Thus, "module" and "component" may be used in combination.
In order to solve the problems mentioned in the background art, according to an aspect of the embodiments of the present application, there is provided an embodiment of a drying apparatus control method.
Alternatively, in the embodiment of the present application, the above-described drying apparatus control method may be applied to a hardware environment constituted by a drying apparatus and a server. The server is connected to the drying apparatus through a network, which may be used to provide services to the terminal or a client installed on the terminal, and a database may be provided on the server or independent of the server, for providing data storage services to the server, the network including but not limited to: a wide area network, a metropolitan area network, or a local area network.
The control method of the drying equipment in the embodiment of the application can be executed by a server, can be executed by the drying equipment, and can be executed by the server and the drying equipment together.
The embodiment of the application provides a control method of drying equipment, which can be applied to the drying equipment and is used for controlling the temperature of sludge in the drying equipment.
The following will describe a control method of a drying apparatus according to an embodiment of the present application in detail with reference to specific embodiments, as shown in fig. 1 and fig. 2, and the specific steps are as follows:
Step 101: and receiving a control instruction.
The control instruction is used for indicating the heat exchange medium in the drying equipment to regulate the temperature.
In this application embodiment including regulation district and stoving district in the drying equipment, be provided with mud and heat transfer medium in the stoving district, this heat transfer medium is used for carrying out heat transfer with mud, then mud can place in this heat transfer medium. The user operates the button on the drying equipment, and the drying equipment receives the control instruction to carry out temperature regulation to the heat transfer medium in the drying equipment according to the instruction, because mud sets up in the heat transfer medium, the drying equipment carries out temperature regulation to the heat conduction promptly and carries out temperature regulation to the mud that is located in the heat transfer medium. The heat exchange medium is a medium capable of transferring heat and can be liquid or gas. The drying device may be a heat pump sludge drying apparatus.
Step 102: and starting a temperature regulating device in the drying equipment according to the control instruction.
The temperature adjusting device is arranged in the adjusting area, and the heat exchange medium is used for heat transfer between the adjusting area and the drying area.
The temperature adjusting device is arranged in the adjusting area of the drying equipment, the temperature adjusting device can adjust the temperature of the drying area, after the drying equipment receives the control instruction, the temperature adjusting device in the drying equipment is started, the temperature adjusting device starts to adjust the temperature of the heat exchange medium and adjust the temperature of the sludge placed in the heat exchange medium, and therefore the temperature adjusting device is used for adjusting the temperature of the sludge. The temperature adjusting device can be a temperature increasing device or a temperature reducing device. Because temperature regulation apparatus sets up in drying equipment, drying equipment with temperature regulation apparatus can realize adjusting the temperature of heat transfer medium by oneself, need not external temperature control device, reduces the weight, the size and the cost of drying equipment that need external equipment, can also reduce complicated connecting line, manual maintenance etc.. Because an external temperature control device is not needed, heat is not needed to be dissipated to the outside and the outside is not needed to be additionally input, the failure rate of the drying equipment is reduced, and the comprehensive operation energy consumption of the drying equipment is reduced.
Step 103: and detecting the temperature value of the heat exchange medium in unit time by a temperature detection device, and controlling the temperature adjustment device to adjust the temperature according to the temperature value so that the temperature of the heat exchange medium is in a preset temperature range.
And a temperature detection device is also arranged in the drying area, and can detect the temperature of the heat exchange medium. If the temperature detection device detects that the temperature of the heat exchange medium exceeds the preset temperature range, the current temperature of the sludge exceeds the preset temperature range, and the sludge drying effect is good; if the temperature detection device detects that the temperature of the heat exchange medium is lower than the preset temperature range, the current temperature of the sludge is lower than the preset temperature range, and the sludge drying effect is poor. Therefore, when the temperature of the heat exchange medium detected by the temperature detection device exceeds the preset temperature range, the temperature regulation device is controlled by the drying device to regulate the temperature so that the temperature of the heat exchange medium is in the preset temperature range. In order to ensure the reliability of the detection data of the temperature detection device, the value of the temperature data detected each time should last for a certain period of time, and the value of the duration time in this embodiment is 3 seconds as an example.
In this application, the heat transfer is carried out with the heat transfer medium in the drying equipment to mud, then the temperature of mud is the same with the temperature of heat transfer medium, detect the temperature of heat transfer medium through temperature-detecting device, and adjust the temperature of heat transfer medium through temperature regulation device, can make the temperature of heat transfer medium be located preset temperature range, promptly, make the temperature of mud be located preset temperature range, make mud dry in suitable temperature range like this, guarantee the stoving effect of mud, the mud after the stoving can be directly used as fuel or fertilizer, effectively reduce the wasting of resources.
As an optional implementation manner, the control instruction is a drying instruction, the heat exchange medium is air, and according to the control instruction, starting the temperature adjusting device in the drying equipment includes: and starting a heating device in the drying equipment according to the drying instruction. The temperature value of the heat exchange medium in unit time is detected by the temperature detection device, and the temperature regulation device is controlled to regulate the temperature according to the temperature value, and the temperature regulation device comprises:
determining that the heating device executes a shutdown strategy under the condition that a temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than a first threshold value; when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, determining that the heating device executes a cooling strategy; and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes a heating strategy.
Mixing a large amount of water in the mud, be equipped with feed arrangement, upper strata guipure, lower floor's guipure and discharging device in drying equipment's the stoving district, mud enters into the stoving district from feed arrangement to along with feed arrangement falls into upper strata guipure on, on upper strata guipure's transportation down, move to lower floor's guipure via upper strata guipure, and in the discharging device flows into under lower floor's guipure's transportation, realize mud and follow the stoving district discharge. In the movement process of the sludge in the drying area, the heat exchange medium carries out heat transfer on the sludge, so that water in the sludge is evaporated and gasified, and the drying treatment of the sludge is realized.
Specifically, drying keys or drying keys are arranged on the drying equipment, after a user presses the keys, the drying equipment controls a heating device in the drying equipment to start according to a drying instruction or a drying instruction, and the heating device continuously heats air, so that sludge can be effectively dried. The heating means may be a heater, for example.
The heating device continuously heats the air, the air is continuously heated, the drying effect of the sludge is not changed greatly, the air temperature is too high to cause the waste of energy, and therefore, the temperature sensor is further arranged in the drying equipment, and the temperature of the air can be monitored in real time. As an example, the temperature sensor is disposed on the air outlet side of the drying area, so that the temperature sensor can monitor the air temperature of the air outlet side of the drying area in real time, if the air temperature is higher than the first threshold, and if the temperature in the surface drying area is too high, the drying device controls the heating device to stop the heating operation, so as to avoid further increase of the air temperature. After the heating device stops heating, the temperature of the air in the drying area can be gradually reduced, if the temperature sensor detects that the temperature of the air is lower than the minimum value of the preset temperature range, the temperature in the drying area is too low, the drying effect is poor, and the heating device is controlled to continue to start heating operation. Along with the continuous work of the heating device, the temperature of the air in the drying equipment is gradually increased, if the temperature sensor detects that the temperature of the air is higher than the maximum value of the preset temperature range, the heating device is controlled to cool, so that the temperature of the drying area can be kept between the minimum value of the preset temperature and the maximum value of the preset temperature as far as possible, the drying effect of the drying equipment is effectively ensured, and the energy consumption of the drying equipment is reduced.
The temperature sensor is used for detecting a temperature value of the air outlet side of the drying area and can also be used for detecting a temperature change value of the air outlet side of the drying area. In this embodiment, the temperature sensor is used to detect a temperature variation value of the air outlet side of the drying area. Specifically, the temperature change value is a difference between a target temperature value of the air outlet side of the drying zone and an actual detection value of the air outlet side of the drying zone. Thus, the target temperature value can be set by the user in different demands. Specifically, the first threshold is-6 ℃, the maximum value of the preset temperature is 2 ℃, and the minimum value of the preset temperature is-2 ℃.
As an optional implementation manner, the heating device includes a variable frequency compressor, the cooling strategy is a frequency reduction, and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold and higher than the maximum value of the preset temperature range, determining that the heating device executes the cooling strategy includes: and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, controlling the frequency of the variable frequency compressor to be reduced.
Wherein, the frequency of the variable frequency compressor is reduced, the speed of the variable frequency compressor is reduced, and the power of the variable frequency compressor is also reduced. And then make the temperature of inverter compressor air-out side drop, inverter compressor's air-out side is the air inlet side of drying equipment's stoving district equally, and inverter compressor's air-out side's temperature drop is the temperature drop of stoving district air inlet side, under air cycle's circumstances, and the temperature in stoving district can reduce gradually to make the temperature of the air in stoving district be less than the maximum value of predetermineeing temperature range, guarantee the stoving effect.
When the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than the maximum value of the preset temperature range and smaller than a second threshold value, controlling the frequency of the variable-frequency compressor to reduce a first deviation frequency value; and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the second threshold value, controlling the frequency of the variable frequency compressor to reduce a second deviation frequency value.
Specifically, drying keys or drying keys are arranged on the drying equipment, after a user presses the keys, the drying equipment controls a variable frequency compressor in the drying equipment to start according to a drying instruction or a drying instruction, hot air output by the variable frequency compressor flows into a drying area to enable the air temperature in the drying area to rise, and the hot air can effectively dry sludge. And when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, determining that the heating device executes a cooling strategy. That is, the frequency of the inverter compressor is lowered such that the temperature of the air output from the inverter compressor is lowered such that the temperature of the air flowing into the drying zone is lowered.
Specifically, for accurately adjusting the temperature of air in the drying area, in the embodiment of the application, the preset temperature maximum value and the first threshold value are separated into two time periods, namely, the second threshold value is arranged between the preset temperature maximum value and the first threshold value, the temperature of the drying area is in different temperature intervals, and the variable frequency compressor performs different operations so as to quickly adjust the temperature of the drying area to the preset temperature interval. In addition, in this embodiment, as an example, the preset temperature maximum value and the first threshold value are separated into two temperature intervals, and when in actual operation, a person of ordinary skill in the art may also separate the preset temperature maximum value and the first threshold value into three temperature intervals or multiple temperature intervals, so as to accurately adjust the output temperature of the heating device in real time according to the data detected by the temperature sensor, and timely control the temperature of the drying area within the preset temperature interval, thereby ensuring the drying effect.
As an example, the second threshold may be-4 ℃, the first deviation frequency value and the second deviation frequency value may be adjusted and determined according to the value of the second threshold, in this embodiment, the frequency variation is used to adjust the frequency of the variable frequency compressor, the frequency variation is a difference value of up-down frequency adjustment, and in actual use, the frequency variation may be set to different specific values according to different requirements of users. The first frequency deviation value is twice the frequency variation, and the second frequency deviation value is four times the frequency variation.
As an alternative embodiment, the heating device includes a variable frequency compressor, the temperature raising strategy is a frequency raising, and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes the temperature raising strategy includes: and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, controlling the frequency of the variable frequency compressor to rise.
The frequency of the variable frequency compressor is increased, the speed of the variable frequency compressor is increased, and the power of the variable frequency compressor is increased. And then the temperature that makes the air-out side of inverter compressor risees, and the air-out side of inverter compressor is the air inlet side of drying equipment's stoving district equally, and the temperature that the air-out side of inverter compressor risees is the temperature that the stoving district was air inlet side risees, under air cycle's circumstances, and the temperature in stoving district can rise gradually to make the temperature of the air in stoving district can be greater than the minimum value of predetermineeing temperature range, guarantee the stoving effect.
Specifically, drying keys or drying keys are arranged on the drying equipment, after a user presses the keys, the drying equipment controls a variable frequency compressor in the drying equipment to start according to a drying instruction or a drying instruction, hot air output by the variable frequency compressor flows into a drying area to enable the air temperature in the drying area to rise, and the hot air can effectively dry sludge. And when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes a heating strategy. That is, the frequency of the inverter compressor is raised so that the temperature of the air output from the inverter compressor is raised so that the temperature of the air flowing into the drying area is raised, however, during the frequency raising of the inverter compressor, the service life and the service efficiency of the inverter compressor are also required to be ensured, and in general, the frequency of the inverter compressor should not exceed the rated frequency at which the inverter compressor operates during the raising, and if the operating frequency of the inverter compressor exceeds the rated frequency in special cases, the highest frequency of the inverter compressor should also be required to be paid attention.
It should be noted that, since a certain time is required for the temperature increase in the drying area and there is a possibility that the frequency of the inverter compressor increases beyond the rated frequency, the inverter compressor is at risk in the operation state, and thus, the inverter compressor should be maintained for a certain time in the operation state of each time of the frequency increase, and then the next operation is performed according to the detection value of the temperature sensor. As an example, the certain time in the present embodiment is 1 minute.
When the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range and higher than a third threshold value, controlling the frequency of the variable frequency compressor to rise by a third deviation frequency value; when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the third threshold value and higher than a fourth threshold value, controlling the frequency of the variable-frequency compressor to rise by a fourth deviation frequency value; and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the fourth threshold value, controlling the frequency of the variable frequency compressor to rise by a fifth deviation frequency value.
Specifically, for accurately adjusting the temperature of the air in the drying area, in the embodiment of the application, the temperature lower than the minimum value of the preset temperature is divided into three time periods, namely, the temperature value smaller than the minimum value of the preset temperature is respectively a third threshold value and a fourth threshold value, the temperature of the drying area is in different temperature intervals, the frequency of the variable frequency compressor is increased by different values, and therefore the temperature of the drying area is quickly adjusted to be in the preset temperature interval. In addition, in this embodiment, the temperature lower than the minimum value of the preset temperature is divided into three temperature intervals by way of example, and when in actual operation, a person of ordinary skill in the art can also divide the temperature lower than the minimum value of the preset temperature into two temperature intervals or multiple temperature intervals, so as to accurately adjust the output temperature of the heating device in real time according to the data detected by the temperature sensor, and timely control the temperature of the drying area within the preset temperature interval, thereby ensuring the drying effect.
As an example, the third threshold may be 4 ℃, the fourth threshold is 6 ℃, the third deviation frequency value, the fourth deviation frequency value and the fifth deviation frequency value may be adjusted and determined according to the values of the third threshold and the fourth threshold, in this embodiment, the frequency of the variable frequency compressor is adjusted by using a frequency variation, the frequency variation is a difference value of up-down frequency adjustment, and in actual use, the frequency variation may be set to different specific values according to different requirements of users. The third frequency deviation value is a frequency variation of one time, the fourth frequency deviation value is a frequency variation of two times, and the fifth frequency deviation value is a frequency variation of three times.
As an optional implementation manner, since the temperature sensor is used for detecting the air temperature at the air outlet side of the drying area, in order to ensure the stability and accuracy of the variable frequency compressor for temperature adjustment of the drying area, the embodiment is also provided with the temperature sensor at the air inlet side of the drying area, so that the temperature value at the air inlet side of the drying area is monitored in real time, and the effect of auxiliary adjustment is achieved.
Specifically, the method further comprises: before the heating device executes a heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in a first temperature interval, controlling the temperature of the heating device to rise by a first deviation temperature value.
The second air inlet side of the drying area is the air outlet side of the heating device, namely the temperature of the second air inlet side of the drying area is the temperature of the air outlet side of the heating device, and the first temperature interval is a temperature value between the target air supply temperature and the next highest air supply temperature. When the temperature sensor detects the temperature of the air outlet side of the drying area and determines that the heating device executes a heating strategy, the temperature sensor detects that the temperature of the second air inlet side of the drying area is in a first temperature interval, namely, the temperature of the air outlet side of the heating device is higher, the temperature of the air outlet side of the drying area is lower, and the heat consumption is higher in the process that air is dried by sludge, so that although the heating device executes the heating strategy, the temperature of the air outlet side of the heating device is high, no matter how much the temperature of the heating device is increased, the heating device is forcedly modified into a first deviation temperature value of the temperature rise.
As an example, when the heating means is a heater, the first deviation temperature value may be 2 ℃, 3 ℃, 5 ℃, or the like; the heating device may also be the variable frequency compressor, and at this time, the first deviation temperature value is a frequency adjustment value of the variable frequency compressor, and specifically, the first deviation temperature value may be a frequency variation of one time; the target air supply temperature and the second highest air supply temperature can be set according to the requirement of the user, and in the embodiment, the second highest air supply temperature is 4 ℃ lower than the highest air supply temperature.
And before the heating device executes the heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in the second temperature interval, the heating strategy of the heating device is canceled from being executed, or the heating device is controlled to execute the cooling strategy, or the heating device is closed.
The second temperature interval is a temperature value between the second highest air supply temperature and the highest air supply temperature. When the temperature sensor detects the temperature of the air outlet side of the drying area and determines that the heating device executes the heating strategy, the temperature sensor detects that the temperature of the second air inlet side of the drying area is in a second temperature interval, namely, the temperature of the air outlet side of the heating device is very high, the temperature of the air outlet side of the drying area is low, and the heat consumption is particularly high in the process that air is dried by sludge, so that although the heating device executes the heating strategy, the temperature of the air outlet side of the heating device is high, the heating device is forcedly modified to be unchanged, or is reduced, or is turned off no matter whether the temperature of the heating device is increased.
As an optional implementation manner, before the heating device executes the heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in the second temperature interval, the heating strategy of the heating device is canceled, or the heating device is controlled to execute the cooling strategy, or the heating device is turned off.
And under the condition that the air inlet temperature of the second air inlet side of the drying area is in a second temperature interval, reducing the output temperature of the heating device by a second deviation temperature value every time a target time length passes until the output temperature of the heating device is reduced to the lowest deviation temperature value, and closing the heating device.
Specifically, after the heating device is determined to execute the temperature raising strategy, when the temperature sensor detects that the temperature of the second air inlet side is in the second temperature interval, the temperature raising strategy of the heating device is canceled, the working state of the heating device is kept unchanged, if the temperature of the second air inlet side monitored by the temperature sensor is still in the second temperature interval after maintaining the target time in the current working state, the temperature of the second air inlet side of the drying area is higher, so that the heating device is controlled to execute the temperature lowering strategy each time, and after the heating device is lowered to the lowest temperature, the heating device is turned off after the temperature detection device still detects that the temperature of the second air inlet side is in the second temperature interval.
As an example, the heating device is a variable frequency compressor, so the heating device executes a cooling strategy to reduce the frequency of the variable frequency compressor, and the lowest temperature is the lowest frequency of the variable frequency compressor, so the second deviation temperature value is a frequency value, and in this embodiment, the second deviation temperature value is a frequency deviation value of two times. Specifically, the target time may be set to a different time, for example, 30 seconds, 1 minute, 2 minutes, or the like, according to the user, and the target time in this embodiment is 2 minutes.
As an alternative embodiment, the heating device comprises a variable frequency compressor and a fixed frequency compressor. The drying effect in the drying equipment is realized by mixing and matching the fixed-frequency compressor and the variable-frequency compressor, so that the drying equipment does not need an external condenser and a cooling device, complex pipeline connection, equipment investment, equipment occupation area and redundant manual maintenance can be reduced, and the effects of reducing cost and enhancing efficiency are achieved.
Specifically, when the temperature sensor detects that the temperature of the second air inlet side of the drying area is higher than the highest air supply temperature, the variable frequency compressor is controlled to be turned off; or when the temperature sensor detects that the temperature of the first air inlet side of the drying area is higher than the highest air supply temperature, detecting the working state of the variable frequency compressor, if the variable frequency compressor is in an on state, controlling the variable frequency compressor to be turned off, and if the variable frequency compressor is in an off state, controlling the fixed frequency compressor to be turned off.
Specifically, the temperature of the first air inlet side is the temperature of the air outlet side of the fixed-frequency compressor, and when the fixed-frequency compressor is used, the auxiliary regulation function is achieved on the working state of the heating device by detecting the temperature of the first air inlet side and the temperature of the second air inlet side of the drying area. When the temperature sensor detects that the temperature of the air outlet side of the variable frequency compressor is higher than the highest air supply temperature, the temperature of the air inlet side of the drying area is high enough, and the variable frequency compressor needs to be controlled to be turned off at the moment in order to avoid energy loss. When the temperature sensor detects that the temperature of the air outlet side of the fixed-frequency compressor is higher than the highest air supply temperature, the temperature of the air inlet side of the drying area is also high enough, then the working state of the variable-frequency compressor is detected, and if the variable-frequency compressor is in the running state, the variable-frequency compressor is controlled to be closed. And after the variable frequency compressor is closed for a period of time, if the temperature of the air outlet side of the fixed frequency compressor is still higher than the highest air supply temperature, controlling the fixed frequency compressor to be closed. As an example, the period of time in the present embodiment is 1 minute. In addition, when the working state of the variable frequency compressor is detected to judge that the variable frequency compressor is in a closed state, the fixed frequency compressor is controlled to be closed.
As an optional embodiment, the heating device includes a variable frequency compressor and a fixed frequency compressor, the control command is a start-up command, and the method further includes: when the temperature detection device detects that the temperature of the air outlet side of the drying area is smaller than the target air supply temperature and larger than the target air outlet temperature in a unit time period, the frequency-variable compressor is controlled to be started according to the power supply frequency, and the frequency-variable compressor is controlled to be started according to the lowest frequency; when the temperature detection device detects that the temperature of the air outlet side of the drying area in a unit time period is smaller than the target air outlet temperature, the variable frequency compressor is controlled to be started, and the variable frequency compressor is controlled to be started at rated frequency.
Specifically, when the user presses a start-up instruction on the drying device and the temperature detection device starts to monitor the temperature of the air outlet side of the drying area, and when the temperature of the air outlet side of the drying area is detected to be greater than the target air supply temperature in a unit time period, the temperature of the air outlet side of the drying area is higher, and at the moment, the drying area does not need to be heated, and the variable frequency compressor and the fixed frequency compressor are controlled not to start. When the temperature detection device detects that the temperature of the air outlet side of the drying area is higher than the target return air temperature and lower than the target air supply temperature in a unit time period, the temperature in the drying area is not very low, so that the control frequency-variable compressor is started according to the power supply frequency, and the frequency-variable compressor is started according to the lowest frequency, so that the drying effect can be ensured, and the energy consumption of the device can be reduced. When the temperature detection device detects that the temperature of the air outlet side of the drying area is smaller than the target return air temperature in a unit time period, the temperature in the drying area is lower, so that the variable frequency compressor is controlled to start up, and the variable frequency compressor is controlled to start up with rated work.
As an example, the unit time period may be set by the user, and may be 3 seconds, 5 seconds, or 7 seconds, and the unit time period is set to 3 seconds in this embodiment.
As an optional implementation manner, the control instruction is a start-up instruction, after the fixed-frequency compressor and the variable-frequency compressor are started up, the temperature detection device detects that the temperature of the air outlet side of the drying area is greater than the target return air temperature in a unit time period, and the lower-layer mesh belt, the upper-layer mesh belt and the discharging device are controlled to start, and after a preset time period, the feeding device is controlled to start.
Specifically, when the temperature detection device detects that the temperature of the air outlet side of the drying area is higher than the target return air temperature within 3 seconds, the temperature in the drying area is higher, and the sludge drying operation can be started, so that the device in the drying area is controlled to start to operate, the preset time period is the preparation time, and the sludge is discharged into the drying area after a certain time period is prepared, so that the sludge drying operation can be started.
As an optional implementation manner, the control instruction is a shutdown instruction, when a user presses a shutdown key in the drying device, the feeding device is closed after a unit time period, the sludge supply in the drying device is stopped, and after a period of time, the upper layer mesh belt, the lower layer mesh belt, the fixed frequency compressor and the variable frequency compressor are simultaneously closed, and then the discharging device is closed.
Based on the same technical concept, the embodiment of the application also provides a drying equipment control module, as shown in fig. 3, the module includes:
a receiving module 201, configured to receive a control instruction, where the control instruction is used to instruct a heat exchange medium in the drying apparatus to perform temperature adjustment;
a first control module 202, configured to activate a temperature adjustment device in the drying apparatus according to the control instruction, where the drying apparatus includes an adjustment area and a drying area, the temperature adjustment device is disposed in the adjustment area, and the heat exchange medium is used for performing heat transfer between the adjustment area and the drying area; and
the second control module 203 is configured to detect a temperature value of the heat exchange medium in a unit time through a temperature detection device, and control the temperature adjustment device to perform temperature adjustment according to the temperature value, so that the temperature of the heat exchange medium is within a preset temperature range.
Optionally, the control instruction is a drying instruction, the heat exchange medium is air, and the first control module 202 includes:
the first control unit is used for starting a heating device in the drying equipment according to the drying instruction;
the second control module 203 includes:
The second control unit is used for determining that the heating device executes a shutdown strategy under the condition that the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than a first threshold value;
a third control unit, configured to determine, when the temperature sensor detects that the temperature of the air on the air outlet side of the drying area is lower than the first threshold and higher than the maximum value of the preset temperature range, that the heating device executes a cooling strategy;
and the fourth control unit is used for determining that the heating device executes a heating strategy when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range.
Optionally, the heating device includes a variable frequency compressor, the cooling strategy is frequency reduction, and the second control module 203 includes:
a fifth control unit, configured to control, when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than the maximum value of the preset temperature range and is smaller than a second threshold value, the frequency of the inverter compressor to reduce a first deviation frequency value;
and the sixth control unit is used for controlling the frequency of the variable-frequency compressor to reduce a second deviation frequency value when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the second threshold value.
Optionally, the heating device includes a variable frequency compressor, the temperature rising strategy is frequency rising, and the second control module 203 further includes:
a seventh control unit, configured to control, when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range and higher than a third threshold value, the frequency of the inverter compressor to increase by a third deviation frequency value;
an eighth control unit, configured to control, when the temperature sensor detects that the temperature of the air on the air outlet side of the drying area is lower than the third threshold and higher than a fourth threshold, the frequency of the inverter compressor to increase by a fourth deviation frequency value;
and a ninth control unit, configured to control the frequency of the variable frequency compressor to increase by a fifth deviation frequency value when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the fourth threshold value.
Optionally, the first control unit 202 includes:
a tenth control unit, configured to control, before the heating device executes the temperature raising strategy, the temperature of the heating device to raise by a first deviation temperature value when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in a first temperature interval;
And the eleventh control unit is used for canceling the execution of the heating strategy of the heating device, or controlling the heating device to execute the cooling strategy, or closing the heating device when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in the second temperature interval before the heating device executes the heating strategy.
Optionally, the second control unit 203 includes:
and a twelfth control unit, configured to reduce, when the air intake temperature at the second air intake side of the drying area is in the second temperature interval, the output temperature of the heating device by a second deviation temperature value every time a target duration passes, until the output temperature of the heating device is reduced to the minimum deviation temperature value, and then turn off the heating device.
According to another aspect of the embodiments of the present application, as shown in fig. 2 and 4, the present application provides a drying apparatus, including a memory 303, a processor 301, a communication interface 302, and a communication bus 304, where the memory 303 stores a computer program that can run on the processor 301, and the memory 303 and the processor 301 communicate with the communication bus 304 through the communication interface 302, and the processor executes the steps of the method when the processor executes the computer program.
The memory 303, the processor 301 in the drying apparatus described above communicate with the communication interface 302 via the communication bus 304. The communication bus 304 may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The communication bus 404 may be classified as an address bus, a data bus, a control bus, or the like.
The memory 303 may include a random access memory (Random Access Memory, abbreviated as RAM) or may include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. Optionally, the memory 303 may also be at least one memory device located remotely from the aforementioned processor.
The processor 301 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
As an alternative embodiment, the drying apparatus comprises a drying cabinet 16, the drying cabinet 16 being divided into a conditioning zone 17 and a drying zone 18 and the conditioning zone 17 being in air communication with the drying zone 18. The drying area 18 is internally provided with a feeding device 1, an upper layer mesh belt 2, a lower layer mesh belt 3, a discharging device 4 and a temperature detection device 5, and the adjusting area 17 is internally provided with a variable frequency processing system, a fixed frequency processing system, a main fan 6 and a total heat exchanger 7, wherein the variable frequency processing system comprises a variable frequency compressor 8, a first evaporator 9, a first condenser 10 and a first electronic expansion valve 11 which are connected, and the fixed frequency processing system comprises a fixed frequency compressor 12, a second evaporator 13, a second condenser 14 and a second electronic expansion valve 15 which are connected.
To sum up, the drying equipment provided by the embodiment of the application is of a closed design, heat is not required to be dissipated to the outside and the outside is required to be additionally input, the fixed-frequency compressor 8 and the variable-frequency compressor 12 are matched and adjusted, the uniformity of heat in the drying oven 16 and the full utilization of heat energy are kept, an external temperature control device is not required, the equipment failure rate is reduced, and meanwhile the comprehensive operation energy consumption of the equipment is reduced. The drying control method in the drying equipment is realized by mixing and matching the fixed-frequency compressor 8 and the variable-frequency compressor 12, an external condenser and a cooling device are not needed, the complicated connecting pipeline, equipment investment, equipment occupation area and redundant manual maintenance are reduced, and the effects of reducing cost and enhancing efficiency are achieved. The variable frequency compressor 12 and the fixed frequency compressor 8 can pre-judge the temperature change trend in advance according to the temperature setting condition in the drying oven 16, automatically adjust energy output, reduce the starting and stopping times of the existing compressors and temperature fluctuation in the starting and stopping process, and the temperature in the drying oven 16 can be accurately controlled at the set temperature to continuously ensure the quality of the dried materials.
Specifically, after the user presses the start button, the first electronic expansion valve 11 and the second electronic expansion valve 15 are adjusted to corresponding steps, the main fan 6 is turned on, the air temperature field inside the drying oven 16 is accelerated to flow uniformly, the temperature of the air outlet side of the drying area is detected by the temperature detecting device 5 after a period of time, and then the drying oven enters an adjusting mode.
There is also provided, in accordance with yet another aspect of an embodiment of the present application, a computer readable medium having non-volatile program code executable by a processor.
Optionally, in an embodiment of the present application, the computer readable medium is configured to store program code for the processor to perform the above method:
alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.
In specific implementation, the embodiments of the present application may refer to the above embodiments, which have corresponding technical effects.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Many modifications and variations to these embodiments will be apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the present application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A drying apparatus control method, characterized by comprising:
receiving a control instruction, wherein the control instruction is used for indicating a heat exchange medium in the drying equipment to regulate the temperature;
Starting a temperature regulating device in the drying equipment according to the control instruction,
the drying equipment comprises a regulating area and a drying area, wherein the temperature regulating device is arranged in the regulating area, and the heat exchange medium is used for carrying out heat transfer between the regulating area and the drying area;
detecting the temperature value of the heat exchange medium in unit time by a temperature detection device, and controlling a temperature adjustment device to adjust the temperature according to the temperature value so that the temperature of the heat exchange medium is in a preset temperature range;
the control instruction is a drying instruction, the heat exchange medium is air, and the starting of the temperature adjusting device in the drying equipment according to the control instruction comprises the following steps: starting a heating device in the drying equipment according to the drying instruction;
the temperature value of the heat exchange medium in unit time is detected by the temperature detection device, and the temperature regulation device is controlled to regulate the temperature according to the temperature value, and the temperature regulation device comprises:
determining that the heating device executes a shutdown strategy under the condition that a temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than a first threshold value;
When the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, determining that the heating device executes a cooling strategy;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, determining that the heating device executes a heating strategy;
the heating device comprises a variable frequency compressor, the cooling strategy is frequency reduction, and when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold and higher than the maximum value of the preset temperature range, determining that the heating device executes the cooling strategy comprises: when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the maximum value of the preset temperature range, controlling the frequency of the variable frequency compressor to be reduced;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is higher than the maximum value of the preset temperature range and smaller than a second threshold value, controlling the frequency of the variable-frequency compressor to reduce a first deviation frequency value;
And when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the first threshold value and higher than the second threshold value, controlling the frequency of the variable frequency compressor to reduce a second deviation frequency value.
2. The method of claim 1, wherein the heating device comprises a variable frequency compressor, the warming strategy is a frequency increase, and determining that the heating device performs the warming strategy when the temperature of the air on the air outlet side of the drying zone is detected to be lower than a minimum value of the preset temperature range by the temperature sensor comprises: when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range, controlling the frequency of the variable frequency compressor to rise;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the minimum value of the preset temperature range and higher than a third threshold value, controlling the frequency of the variable-frequency compressor to rise by a third deviation frequency value;
when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the third threshold value and higher than a fourth threshold value, controlling the frequency of the variable-frequency compressor to rise by a fourth deviation frequency value;
And when the temperature sensor detects that the temperature of the air at the air outlet side of the drying area is lower than the fourth threshold value, controlling the frequency of the variable frequency compressor to rise by a fifth deviation frequency value.
3. The method of claim 1, wherein the method further comprises:
before the heating device executes a heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in a first temperature interval, controlling the temperature of the heating device to rise by a first deviation temperature value;
and before the heating device executes the heating strategy, when the temperature sensor detects that the air inlet temperature of the second air inlet side of the drying area is in the second temperature interval, the heating strategy of the heating device is canceled from being executed, or the heating device is controlled to execute the cooling strategy, or the heating device is closed.
4. The method of claim 3, wherein cancelling execution of the warming strategy of the heating device, or controlling the heating device to execute the cooling strategy, or switching off the heating device, when the temperature sensor detects that the inlet air temperature of the second inlet air side of the drying area is within the second temperature interval, before the heating device executes the warming strategy, comprises:
And under the condition that the air inlet temperature of the second air inlet side of the drying area is in a second temperature interval, reducing the output temperature of the heating device by a second deviation temperature value every time a target duration passes until the output temperature of the heating device is reduced to the lowest deviation temperature value, and then closing the heating device.
5. The method of claim 1, wherein the heating device comprises a variable frequency compressor and a fixed frequency compressor;
when the temperature sensor detects that the temperature of the second air inlet side of the drying area is higher than the highest air supply temperature, the variable frequency compressor is controlled to be closed; or alternatively
And detecting the working state of the variable frequency compressor when the temperature sensor detects that the temperature of the first air inlet side of the drying area is higher than the highest air supply temperature, controlling the variable frequency compressor to be closed if the variable frequency compressor is in an open state, and controlling the fixed frequency compressor to be closed if the variable frequency compressor is in a closed state.
6. A drying control module, characterized in that it applies the method according to any one of claims 1-5, said module comprising:
the receiving module is used for receiving a control instruction, wherein the control instruction is used for indicating a heat exchange medium in the drying equipment to carry out temperature adjustment;
The first control module is used for starting a temperature regulating device in the drying equipment according to the control instruction, wherein the drying equipment comprises a regulating area and a drying area, the temperature regulating device is arranged in the regulating area, and the heat exchange medium is used for carrying out heat transfer between the regulating area and the drying area; and
the second control module is used for detecting the temperature value of the heat exchange medium in unit time through the temperature detection device, and controlling the temperature adjustment device to adjust the temperature according to the temperature value so that the temperature of the heat exchange medium is in a preset temperature range.
7. The drying equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for carrying out the method steps of any one of claims 1-5 when executing a program stored on a memory.
8. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein a computer program which, when executed by a processor, implements the method steps of any of claims 1-5.
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