CN111895154A - Valve position feedback method, system, storage medium, computer program, and control valve - Google Patents
Valve position feedback method, system, storage medium, computer program, and control valve Download PDFInfo
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- CN111895154A CN111895154A CN202010652209.1A CN202010652209A CN111895154A CN 111895154 A CN111895154 A CN 111895154A CN 202010652209 A CN202010652209 A CN 202010652209A CN 111895154 A CN111895154 A CN 111895154A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004590 computer program Methods 0.000 title claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims description 13
- 230000005674 electromagnetic induction Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention belongs to the technical field of automatic regulating valves and discloses a valve position feedback method, a system, a storage medium, a computer program and a regulating valveabMechanically changing the operating point of the valve rod of the same regulating valve of the positioner; vabThe voltage is supplied to the locator for sampling all the way, and the voltage is led to the outside valve position conversion module all the way, so that the problem of cross influence of a plurality of instrument detection valve position mechanical structures is solved, the mechanical connection of the valve position transmitter is abandoned, and the valve position transmitter is connected with the intelligent locator to realize the connection of electrical signals. Namely, one path of electric signal of the position sensor of the intelligent positioner is led out and used as an input signal of the valve position transmitter. Therefore, the function of originally needing three sets of valve position mechanical structures is realized by only two sets of valve position mechanical structures. Simplifying the installation steps, ensuring the measurement precision, improving the reliability of the product and enabling the intelligent positionerAnd the valve position transmitter form an instrument system.
Description
Technical Field
The invention belongs to the technical field of automatic regulating valves, and particularly relates to a valve position feedback method, a valve position feedback system, a storage medium, a computer program and a regulating valve.
Background
In recent years, intelligent hot tide mats roll the world, the intelligent idea permeates into various fields, and the industrial aspect shows that: smart factories, industrial 4.0, etc. The important practice of intelligent factories in the field of petrochemical industry is represented by sensor detection and automatic control of intelligent instruments. The automatic regulating valve directly acts on the production control process and is the most key link for intellectualization. The intellectuality of governing valve mainly reflects by intelligent valve locator, and in the oil upgrading project of the china and ocean eastern petrochemical company, use intelligent valve locator comprehensively, although partial valve plays important role in the process control, the operative employee can't judge the valve operation condition at the very first time controlling the in-process for some problems are enlarged. The design increases the valve position feedback output requirement on important detection control positions. The instrument position number: 0239-FV-11608 is the control point of the reverse flying of the recycle hydrogen in the diesel hydrogenation device, which is especially important, so that the electromagnetic valve interlock, the valve position switch meter signal return and the valve position 4-20 mA output continuous quantity feedback are arranged outside the intelligent valve positioner. But there are some important valves that have no real-time feedback of valve actuation.
A discussion of the valve position feedback output function of the intelligent valve positioner is now developed. The initial purpose of setting valve position feedback output is to verify whether the positioner drives the regulating valve to work correctly, so that the reliability of the whole control system is improved. The valve position feedback output is divided into two types, namely a built-in positioner and an external positioner. The built-in type has the advantages of simple structure and convenient operation. But it is integrated with the positioner and shares a Microcontroller (MCU) and communication channel, reliability is based on the positioner, and if the positioner, especially the main control board, fails, the feedback output is necessarily in error indication. The external valve position output and the positioner are independent respectively, and the working states can be verified mutually, so that the design initiatives of adding the valve position feedback output are met. From the design specification file, it can be seen that the valve position feedback should be external, but according to the field regulating valve and the actual size of the valve rod thereof, if the completely independent valve position transmitter is assembled on the regulating valve, because the mechanical space of the valve rod is limited, if the intelligent positioner, the valve position switch and the valve position transmitter all collect the mechanical change position of the valve position, the mechanical assembly mechanism will inevitably form mutual interference in a narrow space.
Through the above analysis, the problems and defects of the prior art are as follows: according to the actual size of the field regulating valve and the valve rod thereof, if the completely independent valve position transmitter is assembled on the regulating valve, the mechanical space of the valve rod is limited, and if the intelligent positioner, the valve position switch and the valve position transmitter all acquire the mechanical change position of the valve position, the mechanical assembly mechanism of the intelligent positioner and the valve position transmitter inevitably forms mutual interference in a narrow space.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a valve position feedback method, a system, a storage medium, a computer program and a regulating valve.
The invention is realized in such a way that a valve position feedback method comprises the following steps:
firstly, feeding back valve position of intelligent positioner to obtain voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
second step, VabOne path of voltage is used for sampling by the positioner, and the other path of voltage is led to the external valve position conversion module.
Further, the position sensor of the positioner of the valve position feedback method adopts a non-contact type electromagnetic induction sensor.
Further, the valve position feedback output of the positioner of the valve position feedback method is fused with the external feedback output.
Further, the valve position feedback method samples the HART protocol adjusting range and the fault detection function.
Further, the valve position feedback method adopts the voltage V between the sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner; vabOne path of voltage is used for sampling by a positioner, and the other path of voltage is led to an external valve position conversion module; the valve position transmitter is connected with the intelligent positioner through an electrical signal;
the position sensor of the valve position feedback method adopts a non-contact electromagnetic induction sensor, the valve position feedback output of the positioner is fused with external feedback output, and the functions of adjusting the measuring range and detecting faults by using the HART protocol are sampled.
It is another object of the present invention to provide a program storage medium for receiving user input, the stored computer program causing an electronic device to perform the steps comprising:
firstly, feeding back valve position of intelligent positioner to obtain voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
second step, VabOne path of voltage is used for sampling by the positioner, and the other path of voltage is led to the external valve position conversion module.
It is another object of the present invention to provide a computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement the valve position feedback method when executed on an electronic device.
Another object of the present invention is to provide a valve position feedback system for implementing the valve position feedback method, the valve position feedback system comprising:
a feedback acquisition module for realizing valve position feedback and acquiring voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
locator sampling module for implementing VabOne path of voltage is used for sampling by a positioner;
and the valve position conversion connecting module is used for realizing the connection with an external valve position conversion module.
Another object of the present invention is to provide an automatic control regulating valve equipped with the valve position feedback system.
Another object of the present invention is to provide a smart meter sensor detecting and automatic control system, which is provided with the automatic control regulating valve.
By combining all the technical schemes, the invention has the advantages and positive effects that: voltage V between sampling points a and b is obtained by valve position feedback of intelligent positionerabUsing locatorsThe operating point of the same regulating valve rod is mechanically changed; vabThe voltage is supplied to the locator for sampling all the way, and the voltage is led to the outside valve position conversion module all the way, so that the problem of cross influence of a plurality of instrument detection valve position mechanical structures is solved, the mechanical connection of the valve position transmitter is abandoned, and the valve position transmitter is connected with the intelligent locator to realize the connection of electrical signals. Namely, one path of electric signal of the position sensor of the intelligent positioner is led out and used as an input signal of the valve position transmitter. Therefore, the function of originally needing three sets of valve position mechanical structures is realized by only two sets of valve position mechanical structures. The method simplifies the installation steps, ensures the measurement precision, improves the reliability of the product, and enables the intelligent positioner and the valve position transmitter to form an instrument system. The position sensor of the locator adopts a non-contact type electromagnetic induction sensor. And the valve position feedback output of the positioner is fused with the external feedback output. And the functions of adjusting the measuring range and detecting faults of the HART protocol are sampled. The invention combines the characteristics of the positioner, creatively provides that the valve position feedback function is added by using the existing positioner under the condition of low added cost through repeated experiments, the problem that a mechanical assembly mechanism forms mutual interference in a narrow space is well solved, the problem of complex assembly of the mechanical mechanism is well solved, and the concept of 'external' valve position feedback output of the intelligent positioner is firstly provided structurally, which is an innovation in the aspect of hardware. Secondly, in software programming, the valve position transmitter is adapted to the sensor signal of the intelligent positioner, and finally the perfect combination of the intelligent positioner and the valve position transmitter is completed to form a new instrument system.
The invention combines the characteristics of the positioner, creatively provides that the valve position feedback function is added by using the existing positioner under the condition of little added cost through repeated experiments, thereby well solving the problem that a mechanical assembly mechanism forms mutual interference in a narrow space and well solving the problem of complicated assembly of the mechanical mechanism.
Drawings
Fig. 1 is a flow chart of a valve position feedback method according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a valve position feedback system provided by an embodiment of the present invention;
in the figure: 1. a feedback acquisition module; 2. a locator sampling module; 3. and the valve position conversion connecting module.
Fig. 3 is a schematic diagram of an equivalent circuit of a locator position sensor according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a sampling circuit according to an embodiment of the present invention.
Fig. 5 and 6 are schematic wiring diagrams of the automatic control regulating valve provided by the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In view of the problems in the prior art, the present invention provides a valve position feedback method, a system, a storage medium, a computer program, and a control valve, which are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the valve position feedback method provided by the present invention includes the following steps:
s101: voltage V between sampling points a and b is obtained by valve position feedback of intelligent positionerabMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
S102：Vabone path of voltage is used for sampling by the positioner, and the other path of voltage is led to the external valve position conversion module.
As shown in fig. 2, the valve position feedback system provided by the present invention includes:
a feedback acquisition module 1 for realizing valve position feedback to obtain voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
and the valve position conversion connecting module 3 is used for realizing the connection with an external valve position conversion module.
The technical solution of the present invention is further described below with reference to the accompanying drawings.
The position sensor of the locator modified by the invention adopts a non-contact electromagnetic induction sensor, is vibration-resistant, is not influenced by temperature change, can be applied to severe working condition environments for a long time, and has an equivalent circuit shown in figure 3.
Voltage V between sampling points a and b is obtained by valve position feedback of intelligent positionerabThe same regulating valve rod operating point of the positioner is used for mechanical change. VabThe voltage is supplied to the locator for sampling all the way, and leads to outside valve position conversion module all the way, has saved one set of governing valve mechanical structure, because of valve position feedback conversion module power supply and output all are independent of the locator, so its reliability greatly improves. In practical circuit application, in order to better improve the system stability, the sampling circuit is completed according to fig. 4. The valve position feedback output form of the positioner is better integrated with the independent and reliable advantages of 'external' feedback output, and the redundant mechanical switching mechanism of the valve rod of the regulating valve is avoided. The reliability of the system is improved while the mechanical assembly work is simplified.
As shown in fig. 5 and 6: the valve position conversion module is also intelligent, is provided with an HART protocol, and can adjust the measuring range and the fault detection function at will. Forming a "dual HART" format. The method has good application prospect in the automatic control regulating valve.
The valve position feedback of the intelligent positioner of the invention obtains the voltage V between the sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner; vabThe voltage is supplied to the locator for sampling all the way, and the voltage is led to the outside valve position conversion module all the way, so that the problem of cross influence of a plurality of instrument detection valve position mechanical structures is solved, the mechanical connection of the valve position transmitter is abandoned, and the valve position transmitter is connected with the intelligent locator to realize the connection of electrical signals. Namely, one path of electric signal of the position sensor of the intelligent positioner is led out and used as an input signal of the valve position transmitter. Therefore, the function of originally needing three sets of valve position mechanical structures is realized by only two sets of valve position mechanical structures. The method simplifies the installation steps, ensures the measurement precision, improves the reliability of the product, and enables the intelligent positioner and the valve position transmitter to form an instrument system.
The position sensor of the locator of the invention adopts a non-contact electromagnetic induction sensor. And the valve position feedback output of the positioner is fused with the external feedback output. And the functions of adjusting the measuring range and detecting faults of the HART protocol are sampled. The invention combines the characteristics of the positioner, creatively provides that the valve position feedback function is added by using the existing positioner under the condition of low added cost through repeated experiments, the problem that a mechanical assembly mechanism forms mutual interference in a narrow space is well solved, the problem of complex assembly of the mechanical mechanism is well solved, and the concept of 'external' valve position feedback output of the intelligent positioner is firstly provided structurally, which is an innovation in the aspect of hardware. Secondly, in software programming, the valve position transmitter is adapted to the sensor signal of the intelligent positioner, and finally the perfect combination of the intelligent positioner and the valve position transmitter is completed to form a new instrument system.
It should be noted that the embodiments of the present invention can be realized by hardware, software, or a combination of software and hardware. The hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory and executed by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the apparatus and methods described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided on a carrier medium such as a disk, CD-or DVD-ROM, programmable memory such as read only memory (firmware), or a data carrier such as an optical or electronic signal carrier, for example. The apparatus and its modules of the present invention may be implemented by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of hardware circuits and software, e.g., firmware.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A valve position feedback method, comprising:
firstly, feeding back valve position of intelligent positioner to obtain voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
second step, VabOne path of voltage is used for sampling by the positioner, and the other path of voltage is led to the external valve position conversion module.
2. The valve position feedback method according to claim 1, wherein the position sensor of the positioner of the valve position feedback method is a non-contact type electromagnetic induction sensor.
3. The valve position feedback method according to claim 1, wherein the valve position feedback output of the positioner of the valve position feedback method is fused with the external feed output.
4. The valve position feedback method of claim 1, wherein the valve position feedback method samples HART protocol tuning range and fault detection functions.
5. The valve position feedback method according to claim 1, wherein the valve position feedback method takes a voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner; vabOne path of voltage is used for sampling by a positioner, and the other path of voltage is led to an external valve position conversion module; the valve position transmitter is connected with the intelligent positioner through an electrical signal;
the position sensor of the valve position feedback method adopts a non-contact electromagnetic induction sensor, the valve position feedback output of the positioner is fused with external feedback output, and the functions of adjusting the measuring range and detecting faults by using the HART protocol are sampled.
6. A program storage medium for receiving user input, the stored computer program causing an electronic device to perform the steps comprising:
firstly, feeding back valve position of intelligent positioner to obtain voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
second step, VabOne path of voltage is used for sampling by the positioner, and the other path of voltage is led to the external valve position conversion module.
7. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement the valve position feedback method of any of claims 1-4 when executed on an electronic device.
8. A valve position feedback system for implementing the valve position feedback method according to any one of claims 1 to 5, wherein the valve position feedback system comprises:
a feedback acquisition module for realizing valve position feedback and acquiring voltage V between sampling points a and babMechanically changing the operating point of the valve rod of the same regulating valve of the positioner;
locator sampling module for implementing VabOne path of voltage is used for sampling by a positioner;
and the valve position conversion connecting module is used for realizing the connection with an external valve position conversion module.
9. An automatic control regulating valve equipped with the valve position feedback system according to claim 8.
10. An intelligent instrument sensor detection and automatic control system, characterized in that, the intelligent instrument sensor detection and automatic control system is provided with the automatic control regulating valve of claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010652209.1A CN111895154A (en) | 2020-07-08 | 2020-07-08 | Valve position feedback method, system, storage medium, computer program, and control valve |
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| CN202010652209.1A CN111895154A (en) | 2020-07-08 | 2020-07-08 | Valve position feedback method, system, storage medium, computer program, and control valve |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04282004A (en) * | 1991-03-08 | 1992-10-07 | Tokyo Gas Co Ltd | Regulating valve control mechanism |
| CN2547983Y (en) * | 2002-06-13 | 2003-04-30 | 吴忠仪表股份有限公司 | New-type electric valve locator |
| CN101650555A (en) * | 2009-09-03 | 2010-02-17 | 浙江大学 | Intelligent electric valve positioner |
| CN103148281A (en) * | 2013-03-20 | 2013-06-12 | 常熟市华夏仪表有限公司 | Stepless electric valve positioner |
| CN103335147A (en) * | 2013-06-13 | 2013-10-02 | 常熟市惠尔石化仪表有限公司 | Intelligent valve positioner based on HART communication |
| CN107131352A (en) * | 2017-04-27 | 2017-09-05 | 苏州虞创智能仪表科技有限公司 | A kind of collection data storage, video monitoring, the intellective electropneumatic valve positioner of signal feedback function |
| CN108105464A (en) * | 2017-12-05 | 2018-06-01 | 浙江工业大学 | A kind of method of the Off-line faults diagnosis of control valve |
-
2020
- 2020-07-08 CN CN202010652209.1A patent/CN111895154A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04282004A (en) * | 1991-03-08 | 1992-10-07 | Tokyo Gas Co Ltd | Regulating valve control mechanism |
| CN2547983Y (en) * | 2002-06-13 | 2003-04-30 | 吴忠仪表股份有限公司 | New-type electric valve locator |
| CN101650555A (en) * | 2009-09-03 | 2010-02-17 | 浙江大学 | Intelligent electric valve positioner |
| CN103148281A (en) * | 2013-03-20 | 2013-06-12 | 常熟市华夏仪表有限公司 | Stepless electric valve positioner |
| CN103335147A (en) * | 2013-06-13 | 2013-10-02 | 常熟市惠尔石化仪表有限公司 | Intelligent valve positioner based on HART communication |
| CN107131352A (en) * | 2017-04-27 | 2017-09-05 | 苏州虞创智能仪表科技有限公司 | A kind of collection data storage, video monitoring, the intellective electropneumatic valve positioner of signal feedback function |
| CN108105464A (en) * | 2017-12-05 | 2018-06-01 | 浙江工业大学 | A kind of method of the Off-line faults diagnosis of control valve |
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Application publication date: 20201106 |