CN115978926A - Method and device for controlling heat pump drying equipment, heat pump drying equipment and storage medium - Google Patents

Abstract

The application relates to the technical field of drying equipment, and discloses a method for controlling heat pump drying equipment, wherein the heat pump drying equipment comprises a compressor, the compressor is used for performing cold medium mass circulation of the heat pump drying equipment, and the method comprises the following steps: acquiring the temperature of an air outlet of the drying room; under the condition that the temperature is not within a preset range, acquiring the to-be-operated frequency of the compressor; and controlling the compressor to operate according to the to-be-operated frequency. The operation frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operation frequency of the compressor can be adjusted in time to enable the temperature of the air outlet of the drying room to be within a preset range, the baking temperature of the drying room can be guaranteed to be within a preset amplitude range, and the baking quality of materials can be guaranteed. The application also discloses a device for controlling the heat pump drying equipment, the heat pump drying equipment and a storage medium.

Description

Method and device for controlling heat pump drying equipment, heat pump drying equipment and storage medium

technical field

The present application relates to the technical field of drying equipment, for example, to a method and device for controlling a heat pump drying equipment, a heat pump drying equipment and a storage medium.

Background technique

At present, in the process of using heat pump drying equipment to dry the materials in the drying room, in order to ensure the baking quality of the materials, the prior art ensures the baking quality of the materials by controlling the compressor to operate at a fixed operating frequency.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in related technologies:

Controlling the compressor to run at a preset frequency does not guarantee that the temperature in the drying room is within the preset amplitude range. If the material is baked at a temperature that is not within the preset amplitude range for a long time, it will Affect the baking quality of the material, and then lead to poor baking quality of the material.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a method and device for controlling heat pump drying equipment, heat pump drying equipment, and a storage medium, so as to adjust the operating frequency of the compressor in time so that the baking temperature is within a preset amplitude range.

In some embodiments, the heat pump drying equipment includes a compressor, and the compressor is used for circulating the cold medium of the heat pump drying equipment, and the method includes: obtaining the temperature of the air outlet of the drying room; If the temperature is not within the preset range, acquire the frequency to be operated of the compressor; and control the compressor to operate according to the frequency to be operated.

In some embodiments, the heat pump drying equipment includes a compressor, and the compressor is used to perform the cold medium circulation of the heat pump drying equipment; the device includes: a first acquisition module configured to acquire a drying room The temperature of the air outlet; the second acquisition module is configured to acquire the operating frequency of the compressor when the temperature is not within the preset range; the control module is configured to control the compressor according to the To run at the running frequency.

In some embodiments, the device for controlling heat pump drying equipment includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned control device when executing the program instructions. Method for heat pump drying equipment.

In some embodiments, the heat pump drying equipment includes the above-mentioned device for controlling the heat pump drying equipment.

In some embodiments, the storage medium stores program instructions, and when the program instructions are executed, the above-mentioned method for controlling the heat pump drying equipment is executed.

The method, device, heat pump drying equipment and storage medium for controlling heat pump drying equipment provided by the embodiments of the present disclosure can achieve the following technical effects: by obtaining the temperature of the air outlet of the drying room; and when the temperature is not within the preset range In this case, the frequency to be run of the compressor is obtained; at the same time, the compressor is controlled to run at the frequency to be run. In this way, the operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, thereby ensuring that the baking temperature of the drying room is within the preset range. Within the amplitude range, the baking quality of the material can be guaranteed.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 (a) is the structural representation of heat pump drying equipment;

Fig. 1(b) is a block diagram of the circuit principle of the heat pump drying equipment provided by the embodiment of the present disclosure;

Fig. 2 is a schematic diagram of a method for controlling heat pump drying equipment provided by an embodiment of the present disclosure;

Fig. 3 is a schematic diagram of another method for controlling heat pump drying equipment provided by an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of another method for controlling heat pump drying equipment provided by an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of an apparatus for controlling heat pump drying equipment provided by an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of another device for controlling heat pump drying equipment provided by an embodiment of the present disclosure.

Reference signs: 1. compressor; 2. evaporator; 3. expansion valve; 4. condenser; 5. humidity sensor; 6. control unit; 7. temperature sensor.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, 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 simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

The term "correspondence" may refer to an association relationship or a binding relationship, and the correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

As shown in Figure 1(a) and Figure 1(b), the heat pump drying equipment includes a compressor 1, an evaporator 2, an expansion valve 3, a condenser 4, a humidity sensor 5, a control unit 6 and a temperature sensor 7; The drying equipment is used to dry the materials in the drying room, the compressor 1 is used to circulate the cold medium of the heat pump drying equipment, the evaporator 2 is used to dehumidify the return air of the drying room, and the expansion valve 3 is used to adjust the heat pump drying equipment. The cold medium circulation of the dry equipment, the condenser 4 is used to heat the air. The humidity sensor 5 is electrically connected to the control unit 6, the temperature sensor 7 is electrically connected to the control unit 6, the compressor 1 is electrically connected to the control unit 6, and the expansion valve 3 is electrically connected to the control unit 6; the humidity sensor 5 is arranged at the air outlet of the drying room , for monitoring the humidity of the air outlet of the drying room, and sending the monitored humidity of the air outlet of the drying room to the control unit 6; the temperature sensor 7 is arranged at the air outlet of the drying room, for obtaining the temperature of the air outlet of the drying room, and Send the obtained temperature to the control unit 6; the control unit 6 is used to receive the temperature sent by the temperature sensor, and when the temperature is not within the preset range, obtain the operating frequency of the compressor 1, thereby controlling the compressor 1 according to The operating frequency is to be operated; the control unit 6 is used to receive the humidity sent by the humidity sensor 5, and trigger the compressor 1 to stop running when the humidity is lower than the preset threshold; the control unit 6 is also used to control the expansion valve.

As shown in FIG. 2 , an embodiment of the present disclosure provides a method for controlling heat pump drying equipment, including:

Step S201, obtaining the temperature of the air outlet of the drying room;

Step S202, when the temperature is not within the preset range, obtain the frequency to be operated of the compressor;

Step S203, controlling the compressor to run according to the frequency to be run.

Using the method for controlling the heat pump drying equipment provided by the embodiments of the present disclosure, by obtaining the temperature of the air outlet of the drying room; and when the temperature is not within the preset range, obtain the operating frequency of the compressor; and then control the compressor Run according to the frequency to be run. The operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, so as to ensure that the baking temperature of the drying room is within the preset amplitude Within the range, the baking quality of the material can be guaranteed.

Optionally, the material is tobacco leaves.

Optionally, before obtaining the temperature of the air outlet of the drying room, it also includes obtaining the drying stage of the tobacco leaves, and obtaining the preset range corresponding to the drying stage; the drying stages of the tobacco leaves include the yellowing period, the color fixing period and the drying period Expect. Optionally, the temperature is not within the preset range, including: the temperature is not within the preset range corresponding to the drying stage.

Optionally, obtaining the drying stage of the tobacco leaves includes: obtaining the running time of the heat pump dryer, matching the drying stage corresponding to the running time in a preset data table, and storing the running time and drying time in the data table. Correspondence between dry stages.

Optionally, obtaining the temperature of the air outlet of the drying room includes: obtaining the temperature of the air outlet of the drying room through a temperature sensor arranged at the air outlet of the drying room.

As shown in FIG. 3 , an embodiment of the present disclosure provides a method for controlling heat pump drying equipment, including:

Step S301, obtaining the temperature of the air outlet of the drying room;

Step S302, if the temperature is not within the preset range, obtain the current operating frequency of the compressor; obtain the frequency to be operated according to the current operating frequency and the preset adjustment frequency.

Step S303, controlling the compressor to run according to the frequency to be run.

Using the method for controlling heat pump drying equipment provided by the embodiments of the present disclosure, by obtaining the temperature of the air outlet of the drying room; and obtaining the current operating frequency of the compressor when the temperature is not within the preset range; according to the current operating frequency and The preset adjustment frequency obtains the frequency to be operated; then the compressor is controlled to run at the frequency to be operated. The operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, so as to ensure that the baking temperature of the drying room is within the preset amplitude Within the range, the baking quality of the material can be guaranteed.

Optionally, obtaining the frequency to be operated according to the current operating frequency and the preset adjusted frequency includes: obtaining the frequency to be operated by subtracting the adjusted frequency from the current operating frequency; or obtaining the frequency to be operated by adding the adjusted frequency to the current operating frequency.

Optionally, when the temperature is greater than the preset range, the frequency to be operated is obtained by subtracting the adjusted frequency from the current operating frequency.

Optionally, when the temperature is lower than the preset range, the frequency to be operated is obtained by adding the adjusted frequency to the current operating frequency.

Optionally, adjust the frequency to 5 Hz.

As shown in FIG. 4 , an embodiment of the present disclosure provides a method for controlling heat pump drying equipment, including:

Step S401, obtaining the temperature of the air outlet of the drying room;

Step S402, when the temperature is not within the preset range, obtain the frequency to be operated of the compressor;

Step S403, controlling the compressor to run according to the frequency to be run;

Step S404, monitoring the humidity of the air outlet of the drying room;

Step S405, when the humidity is lower than the preset threshold, the compressor is triggered to stop running.

Using the method for controlling the heat pump drying equipment provided by the embodiments of the present disclosure, by obtaining the temperature of the air outlet of the drying room; and when the temperature is not within the preset range, obtain the operating frequency of the compressor; and then control the compressor Run according to the frequency to be run. The operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, so as to ensure that the baking temperature of the drying room is within the preset amplitude Within the range, the baking quality of the material can be guaranteed. And it can also determine whether the moisture content of the material is up to the standard by monitoring the temperature of the air outlet of the drying room. When the humidity is lower than the preset threshold, it can be determined that the moisture content of the material is up to the standard, so that the compressor can be controlled to stop running.

Optionally, monitoring the humidity of the air outlet of the drying room includes: monitoring the humidity of the air outlet of the drying room through a humidity sensor arranged at the air outlet of the drying room.

As shown in FIG. 5, an embodiment of the present disclosure provides an apparatus for controlling heat pump drying equipment, including a first acquisition module 501, a second acquisition module 502, and a control module 503. The first acquisition module 501 is configured to acquire drying The temperature of the air outlet of the room; the second acquisition module 502 is configured to acquire the frequency to be operated of the compressor when the temperature is not within the preset range; the control module 503 is configured to control the compressor to operate at the frequency to be operated.

Using the device for controlling heat pump drying equipment provided by the embodiments of the present disclosure, the temperature of the air outlet of the drying room is obtained through the first acquisition module; when the temperature is not within the preset range, the second acquisition module obtains the standby temperature of the compressor Operating frequency; then control the compressor to run at the frequency to be operated through the control module. Therefore, the operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, thereby ensuring that the baking temperature of the drying room is within the preset range. Within the value range, the baking quality of the material can be guaranteed.

Optionally, the second acquiring module is configured to acquire the frequency to be operated of the compressor in the following manner: acquire the current operating frequency of the compressor; acquire the frequency to be operated according to the current operating frequency and the preset adjustment frequency.

Optionally, the second acquiring module is configured to acquire the frequency to be operated according to the current operating frequency and the preset adjustment frequency in the following manner: the frequency to be operated is obtained by subtracting the adjusted frequency from the current operating frequency; or, the frequency to be operated is obtained by using the current operating frequency plus Adjust the frequency to obtain the frequency to be run.

Optionally, the device for controlling the heat pump drying equipment further includes a trigger module configured to monitor the humidity of the air outlet in real time; when the humidity is less than a preset threshold, trigger the compressor to stop running.

As shown in FIG. 6 , an embodiment of the present disclosure provides an apparatus for controlling heat pump drying equipment, including a processor (processor) 600 and a memory (memory) 601 . Optionally, the device may further include a communication interface (Communication Interface) 602 and a bus 603. Wherein, the processor 600 , the communication interface 602 , and the memory 601 can communicate with each other through the bus 603 . The communication interface 602 can be used for information transmission. The processor 600 can call the logic instructions in the memory 601 to execute the method for controlling the heat pump drying equipment in the above embodiments.

Using the device for controlling the heat pump drying equipment provided by the embodiments of the present disclosure, by obtaining the temperature of the air outlet of the drying room; and when the temperature is not within the preset range, obtain the operating frequency of the compressor; and then control the compressor Run according to the frequency to be run. The operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, so as to ensure that the baking temperature of the drying room is within the preset amplitude Within the range, the baking quality of the material can be guaranteed.

In addition, the above logic instructions in the memory 601 may be implemented in the form of software function units and when sold or used as an independent product, may be stored in a computer-readable storage medium.

The memory 601, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes the program instructions/modules stored in the memory 601 to execute functional applications and data processing, that is, to implement the methods for controlling the heat pump drying equipment in the above-mentioned embodiments.

The memory 601 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage 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.

An embodiment of the present disclosure provides a heat pump drying device, including the above-mentioned device for controlling the heat pump drying device.

Using the heat pump drying equipment provided by the embodiments of the present disclosure, by obtaining the temperature of the air outlet of the drying room; and when the temperature is not within the preset range, obtain the frequency of the compressor to be operated; and then control the compressor to operate at the frequency to be operated . The operating frequency of the compressor can be controlled according to the temperature of the air outlet of the drying room, so that the operating frequency of the compressor can be adjusted in time so that the temperature of the air outlet of the drying room is within the preset range, so as to ensure that the baking temperature of the drying room is within the preset amplitude Within the range, the baking quality of the material can be guaranteed.

An embodiment of the present disclosure provides a storage medium, which stores program instructions, and when the program instructions are run, execute the above-mentioned method for controlling a heat pump drying device.

An embodiment of the present disclosure provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the The computer executes the above method for controlling the heat pump drying equipment.

The above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc. A medium that can store program code, or a transitory storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of 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 include any and all possible combinations of one or more of the associated listed ones. Additionally, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. Said artisans may implement the described functions using different methods for each particular application, but such implementation should not be regarded as exceeding the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be 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 disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims (11)

1. A method for controlling heat pump drying equipment, the heat pump drying equipment includes a compressor, and the compressor is used for the cold medium circulation of the heat pump drying equipment, it is characterized in that the method includes : Obtain the temperature of the air outlet of the drying room; If the temperature is not within the preset range, obtain the operating frequency of the compressor; The compressor is controlled to run according to the frequency to be run. 2. The method according to claim 1, wherein obtaining the operating frequency of the compressor comprises: Obtain the current operating frequency of the compressor; The to-be-running frequency is obtained according to the current running frequency and a preset adjustment frequency. 3. The method according to claim 2, wherein obtaining the frequency to be operated according to the current operating frequency and the preset adjustment frequency comprises: subtracting the adjusted frequency from the current operating frequency to obtain the frequency to be operated; or, The frequency to be operated is obtained by adding the adjusted frequency to the current operating frequency. 4. The method according to any one of claims 1 to 3, further comprising: Monitoring the humidity of the air outlet of the drying room; When the humidity is lower than a preset threshold, the compressor is triggered to stop running. 5. A device for controlling heat pump drying equipment, the heat pump drying equipment includes a compressor, and the compressor is used for the cold medium circulation of the heat pump drying equipment, characterized in that the device includes : The first obtaining module is configured to obtain the temperature of the air outlet of the drying room; The second obtaining module is configured to obtain the operating frequency of the compressor when the temperature is not within the preset range; A control module configured to control the compressor to operate at the frequency to be operated. 6. The device according to claim 5, wherein the second obtaining module is configured to obtain the frequency to be operated of the compressor in the following manner: Obtain the current operating frequency of the compressor; The to-be-running frequency is obtained according to the current running frequency and a preset adjustment frequency. 7. The device according to claim 5, wherein the second obtaining module is configured to obtain the frequency to be operated according to the current operating frequency and the preset adjustment frequency in the following manner: subtracting the adjusted frequency from the current operating frequency to obtain the frequency to be operated; or, The frequency to be operated is obtained by adding the adjusted frequency to the current operating frequency. 8. The device according to any one of claims 5 to 7, further comprising: a trigger module configured to monitor the humidity of the air outlet in real time; when the humidity is less than a preset threshold, Trigger the compressor to stop running. 9. A device for controlling heat pump drying equipment, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to, when running the program instructions, execute the The method for controlling heat pump drying equipment described in any one of 4. 10. A heat pump drying device, characterized by comprising the device for controlling the heat pump drying device according to claim 9. 11. A storage medium storing program instructions, wherein the program instructions execute the method for controlling heat pump drying equipment according to any one of claims 1 to 4 when running.

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