CN116027819A - Negative pressure adjusting method, system, equipment and medium for electric proportional valve - Google Patents
Negative pressure adjusting method, system, equipment and medium for electric proportional valve Download PDFInfo
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- CN116027819A CN116027819A CN202211424546.0A CN202211424546A CN116027819A CN 116027819 A CN116027819 A CN 116027819A CN 202211424546 A CN202211424546 A CN 202211424546A CN 116027819 A CN116027819 A CN 116027819A
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Abstract
The invention provides a negative pressure adjusting method, a system, equipment and a medium for an electric proportional valve, which belong to the technical field of electric proportional valves, wherein the method comprises the following steps: step S10, the PLC adjusts the opening value of the electric proportional valve based on the received control instruction; step S20, the PLC acquires the current real-time opening value of the electric proportional valve in real time and acquires the real-time pressure value of the pressure gauge in real time; step S30, the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity; and step S40, the PLC checks the real-time pressure value based on the control instruction, and dynamically corrects the opening value of the electric proportional valve based on the checking result and the real-time opening value. The invention has the advantages that: the negative pressure adjusting precision of the electric proportional valve is greatly improved.
Description
Technical Field
The invention relates to the technical field of electric proportional valves, in particular to a negative pressure adjusting method, a negative pressure adjusting system, negative pressure adjusting equipment and a negative pressure adjusting medium for an electric proportional valve.
Background
In the production process of the lithium battery, the lithium battery core needs to be formed at high temperature, and because a certain amount of gas is generated in the formation process, the generated gas needs to be pumped away by utilizing a negative pressure system; in order to ensure the quality of the lithium battery, the negative pressure system needs to provide stable negative pressure.
The electric proportional valve is a valve for adjusting the cross-sectional area of the valve core according to the size of a control signal, and the pressure is adjusted by adjusting the cross-sectional area of the valve core, namely the negative pressure output by the negative pressure system can be adjusted through the electric proportional valve; the traditional electric proportional valve is mostly of an integrated structure, namely, the pressure gauge and the proportional valve are integrated into the integrated electric proportional valve, and remote control is carried out through 485 communication, however, the traditional electric proportional valve is high in cost, the opening value of the current proportional valve cannot be obtained in real time, the opening value of the proportional valve cannot be corrected, the pressure regulating precision of the electric proportional valve is directly affected, and the actual production requirement cannot be met.
Therefore, how to provide a method, a system, a device and a medium for adjusting the negative pressure of the electric proportional valve to improve the negative pressure adjusting precision of the electric proportional valve becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method, a system, equipment and a medium for adjusting the negative pressure of an electric proportional valve, so as to improve the negative pressure adjusting precision of the electric proportional valve.
In a first aspect, the invention provides a negative pressure adjusting method of an electric proportional valve, comprising the following steps:
step S10, the PLC adjusts the opening value of the electric proportional valve based on the received control instruction;
step S20, the PLC acquires the current real-time opening value of the electric proportional valve in real time and acquires the real-time pressure value of the pressure gauge in real time;
step S30, the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity;
and step S40, the PLC checks the real-time pressure value based on the control instruction, and dynamically corrects the opening value of the electric proportional valve based on the checking result and the real-time opening value.
Further, in the step S10, the control command carries a target pressure value.
Further, the step S30 specifically includes:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on the proportional-integral parameter.
Further, the step S40 specifically includes:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
In a second aspect, the invention provides an electric proportional valve negative pressure regulating system, which comprises the following modules:
the opening value adjusting module is used for adjusting the opening value of the electric proportional valve based on the received control instruction by the PLC;
the real-time data acquisition module is used for acquiring the current real-time opening value of the electric proportional valve by the PLC in real time and acquiring the real-time pressure value of the pressure gauge in real time;
the analog-to-digital conversion module is used for converting the real-time opening value and the real-time pressure value from analog quantity to digital quantity by the PLC;
and the opening value correction module is used for verifying the real-time pressure value based on the control instruction by the PLC and dynamically correcting the opening value of the electric proportional valve based on the verification result and the real-time opening value.
Further, in the opening value adjustment module, the control instruction carries a target pressure value.
Further, the analog-to-digital conversion module is specifically configured to:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on the proportional-integral parameter.
Further, the opening value correction module is specifically configured to:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
In a third aspect, the present invention provides an electric proportional valve negative pressure regulating device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of the first aspect when executing the program.
In a fourth aspect, the present invention provides an electrical proportional valve negative pressure regulating medium having stored thereon a computer program which when executed by a processor implements the method of the first aspect.
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:
the current real-time opening value of the electric proportional valve and the real-time pressure value of the pressure gauge are obtained in real time through the PLC, the real-time opening value and the real-time pressure value are converted into digital values from analog values based on proportional integral parameters, the real-time pressure value is verified based on a target pressure value carried by a control instruction, the opening value of the electric proportional valve is dynamically corrected based on a verification result and the real-time opening value, namely, a feedback signal of the electric proportional valve is obtained in real time, the opening value of the electric proportional valve is dynamically corrected based on the target pressure value and the real-time pressure value, the pressure of the electric proportional valve can reach the target pressure value rapidly, the negative pressure adjustment precision of the electric proportional valve is improved greatly finally, and the current working state of the electric proportional valve is convenient for workers to see through the real-time opening value and the real-time pressure value fed back.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
The invention will be further described with reference to examples of embodiments with reference to the accompanying drawings.
FIG. 1 is a flow chart of a method for regulating negative pressure of an electric proportional valve.
Fig. 2 is a schematic structural diagram of a negative pressure regulating system of an electric proportional valve according to the present invention.
Fig. 3 is a schematic structural view of an electric proportional valve negative pressure adjusting device of the present invention.
Fig. 4 is a schematic structural diagram of a negative pressure regulating medium of an electric proportional valve according to the present invention.
Detailed Description
According to the embodiment of the application, the negative pressure adjusting method, the system, the equipment and the medium of the electric proportional valve are provided, so that the negative pressure adjusting precision of the electric proportional valve is improved.
According to the technical scheme in the embodiment of the application, the overall thought is as follows: the PLC acquires the current real-time opening value of the electric proportional valve and the real-time pressure value of the pressure gauge in real time, verifies the real-time pressure value based on the target pressure value carried by the control instruction, and dynamically corrects the opening value of the electric proportional valve based on the verification result and the real-time opening value so as to improve the negative pressure adjustment precision of the electric proportional valve.
Example 1
The embodiment provides a negative pressure adjusting method of an electric proportional valve, as shown in fig. 1, comprising the following steps:
step S10, the PLC adjusts the opening value of the electric proportional valve based on the received control instruction; the opening value corresponds to the cross-sectional area of the valve core of the electric proportional valve one by one;
step S20, the PLC acquires the current real-time opening value of the electric proportional valve in real time and acquires the real-time pressure value of the pressure gauge in real time;
step S30, the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity;
and step S40, the PLC checks the real-time pressure value based on the control instruction, and dynamically corrects the opening value of the electric proportional valve based on the checking result and the real-time opening value. The PLC is used for controlling the electric proportional valve to replace the traditional 485 communication control, and the split type structure is used for replacing the traditional integrated structure, so that the cost is greatly reduced.
In the step S10, the control command carries a target pressure value.
The step S30 specifically includes:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on proportional integral parameters (PI parameters).
The step S40 specifically includes:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
Example two
The embodiment provides an electric proportional valve negative pressure adjusting system, as shown in fig. 2, comprising the following modules:
the opening value adjusting module is used for adjusting the opening value of the electric proportional valve based on the received control instruction by the PLC; the opening value corresponds to the cross-sectional area of the valve core of the electric proportional valve one by one;
the real-time data acquisition module is used for acquiring the current real-time opening value of the electric proportional valve by the PLC in real time and acquiring the real-time pressure value of the pressure gauge in real time;
the analog-to-digital conversion module is used for converting the real-time opening value and the real-time pressure value from analog quantity to digital quantity by the PLC;
and the opening value correction module is used for verifying the real-time pressure value based on the control instruction by the PLC and dynamically correcting the opening value of the electric proportional valve based on the verification result and the real-time opening value. The PLC is used for controlling the electric proportional valve to replace the traditional 485 communication control, and the split type structure is used for replacing the traditional integrated structure, so that the cost is greatly reduced.
In the opening value adjusting module, the control instruction carries a target pressure value.
The analog-to-digital conversion module is specifically used for:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on proportional integral parameters (PI parameters).
The opening value correction module is specifically configured to:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
Based on the same inventive concept, the application provides an electronic device embodiment corresponding to the first embodiment, and the details of the third embodiment are described in detail.
Example III
The embodiment provides an electric proportional valve negative pressure adjusting device, as shown in fig. 3, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor can implement any implementation of the embodiment when executing the computer program.
Since the electronic device described in this embodiment is a device for implementing the method described in the first embodiment of the present application, those skilled in the art will be able to understand the specific implementation of the electronic device and various modifications thereof based on the method described in the first embodiment of the present application, so how the method described in the embodiment of the present application is implemented in this electronic device will not be described in detail herein. The apparatus used to implement the methods of the embodiments of the present application are within the scope of what is intended to be protected by the present application.
Based on the same inventive concept, the application provides a storage medium corresponding to the first embodiment, and the details of the fourth embodiment are described in detail.
Example IV
The present embodiment provides an electric proportional valve negative pressure adjusting medium, as shown in fig. 4, on which a computer program is stored, which when executed by a processor, can implement any implementation manner of the first embodiment.
The technical scheme provided in the embodiment of the application has at least the following technical effects or advantages:
the current real-time opening value of the electric proportional valve and the real-time pressure value of the pressure gauge are obtained in real time through the PLC, the real-time opening value and the real-time pressure value are converted into digital values from analog values based on proportional integral parameters, the real-time pressure value is verified based on a target pressure value carried by a control instruction, the opening value of the electric proportional valve is dynamically corrected based on a verification result and the real-time opening value, namely, a feedback signal of the electric proportional valve is obtained in real time, the opening value of the electric proportional valve is dynamically corrected based on the target pressure value and the real-time pressure value, the pressure of the electric proportional valve can reach the target pressure value rapidly, the negative pressure adjustment precision of the electric proportional valve is improved greatly finally, and the current working state of the electric proportional valve is convenient for workers to see through the real-time opening value and the real-time pressure value fed back.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the invention, and that equivalent modifications and variations of the invention in light of the spirit of the invention will be covered by the claims of the present invention.
Claims (10)
1. A negative pressure adjusting method of an electric proportional valve is characterized by comprising the following steps of: the method comprises the following steps:
step S10, the PLC adjusts the opening value of the electric proportional valve based on the received control instruction;
step S20, the PLC acquires the current real-time opening value of the electric proportional valve in real time and acquires the real-time pressure value of the pressure gauge in real time;
step S30, the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity;
and step S40, the PLC checks the real-time pressure value based on the control instruction, and dynamically corrects the opening value of the electric proportional valve based on the checking result and the real-time opening value.
2. The negative pressure adjusting method of the electric proportional valve according to claim 1, wherein: in the step S10, the control command carries a target pressure value.
3. The negative pressure adjusting method of the electric proportional valve according to claim 1, wherein: the step S30 specifically includes:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on the proportional-integral parameter.
4. The negative pressure adjusting method of the electric proportional valve according to claim 1, wherein: the step S40 specifically includes:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
5. An electric proportional valve negative pressure adjustment system which is characterized in that: the device comprises the following modules:
the opening value adjusting module is used for adjusting the opening value of the electric proportional valve based on the received control instruction by the PLC;
the real-time data acquisition module is used for acquiring the current real-time opening value of the electric proportional valve by the PLC in real time and acquiring the real-time pressure value of the pressure gauge in real time;
the analog-to-digital conversion module is used for converting the real-time opening value and the real-time pressure value from analog quantity to digital quantity by the PLC;
and the opening value correction module is used for verifying the real-time pressure value based on the control instruction by the PLC and dynamically correcting the opening value of the electric proportional valve based on the verification result and the real-time opening value.
6. The negative pressure regulating system of an electrical proportional valve of claim 5, wherein: in the opening value adjusting module, the control instruction carries a target pressure value.
7. The negative pressure regulating system of an electrical proportional valve of claim 5, wherein: the analog-to-digital conversion module is specifically used for:
the PLC converts the real-time opening value and the real-time pressure value from analog quantity to digital quantity based on the proportional-integral parameter.
8. The negative pressure regulating system of an electrical proportional valve of claim 5, wherein: the opening value correction module is specifically configured to:
the PLC judges whether the real-time pressure value is larger or smaller based on the control instruction, if the real-time pressure value is larger, the opening value of the electric proportional valve is reduced based on the real-time opening value until the real-time pressure value is equal to the target pressure value; and if the pressure value is smaller, the opening value of the electric proportional valve is increased based on the real-time opening value until the real-time pressure value is equal to the target pressure value.
9. An electrical proportional valve negative pressure regulating device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 4 when executing the program.
10. An electrical proportional valve negative pressure regulating medium having stored thereon a computer program, which when executed by a processor, implements a method according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211424546.0A CN116027819A (en) | 2022-11-15 | 2022-11-15 | Negative pressure adjusting method, system, equipment and medium for electric proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211424546.0A CN116027819A (en) | 2022-11-15 | 2022-11-15 | Negative pressure adjusting method, system, equipment and medium for electric proportional valve |
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| Publication Number | Publication Date |
|---|---|
| CN116027819A true CN116027819A (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211424546.0A Pending CN116027819A (en) | 2022-11-15 | 2022-11-15 | Negative pressure adjusting method, system, equipment and medium for electric proportional valve |
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|---|---|
| CN (1) | CN116027819A (en) |
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- 2022-11-15 CN CN202211424546.0A patent/CN116027819A/en active Pending
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