CN112486138A - Detection method for industrial differential pressure control equipment - Google Patents
Detection method for industrial differential pressure control equipment Download PDFInfo
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- CN112486138A CN112486138A CN202011187861.7A CN202011187861A CN112486138A CN 112486138 A CN112486138 A CN 112486138A CN 202011187861 A CN202011187861 A CN 202011187861A CN 112486138 A CN112486138 A CN 112486138A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The invention discloses a detection method of industrial differential pressure control equipment, which belongs to the technical field of detection of differential pressure control equipment, and the device used by the detection method comprises a pressure control console (with a built-in gas precompression pump), a digital pressure calibrator A, a digital pressure calibrator B, a processor, a pressure boosting valve, a low pressure valve, a balance valve, a pressure relief valve, a gas container A and a gas container B, wherein the gas precompression pump is built in the pressure control console, and a pressure-increasing valve is arranged between the output end of the pressure control platform and the gas-containing tank A, the invention collects the data acquisition and verification of the static pressure in the pipeline under the balanced state through devices such as a digital pressure calibrator, a processor and the like, after data acquisition and acquisition, the national standard regulation rule of the differential pressure controller is used as data reference for data verification and comparison, and whether the static pressure of the differential pressure controller is qualified or not can be judged after data comparison, so that the static pressure detection of the differential pressure controller is realized.
Description
Technical Field
The invention relates to the technical field of detection of differential pressure control equipment, in particular to a detection method of industrial differential pressure control equipment.
Background
The differential pressure controller can adopt various sensors, such as a bellows type sensor, a diaphragm type sensor, a medium for gas, liquid and the like. The setting value of the controller is adjustable, the adjusting range is 10-2500 Pa, and the working pressure range is 0-0.1 Mpa. High sensitivity, low control value, small switching difference and subminiature design.
In industrial production, the quality of a differential pressure controller directly influences the safe operation of the whole production chain. In daily detection, due to the lack of a proper detection method, the influence of static pressure of a differential pressure controller is often ignored, under the influence of the static pressure, the measurement accuracy of the differential pressure controller is greatly influenced, and the detection of the static pressure possibly causes deviation and misjudgment of a pressure detection result, so that the static pressure of the differential pressure controller needs to be detected.
Disclosure of Invention
The invention provides a detection method of industrial differential pressure control equipment, which collects data acquisition and verification of static pressure in a pipeline under a balanced state through a digital pressure calibrator, a processor and other devices, performs data verification and comparison by taking national standard regulation rules of a differential pressure controller as data references after data acquisition, and can judge whether the static pressure of the differential pressure controller is qualified or not after data comparison, thereby realizing the static pressure detection of the differential pressure controller.
The specific technical scheme provided by the invention is as follows:
the invention provides a detection method of industrial differential pressure control equipment, which comprises a pressure control console (a built-in gas precompression pump), a digital pressure calibrator A, a digital pressure calibrator B, a processor, a boost valve, a low-pressure valve, a balance valve, a pressure relief valve, a gas container A and a gas container B, wherein the gas precompression pump is built in the pressure control console, the boost valve is arranged between the output end of the pressure control console and the gas container A, the low-pressure valve and the balance valve are respectively fixed at two pipelines at the outer side of the gas container A, the digital pressure calibrator A is arranged at a pipeline between the low-pressure valve and the pressure relief valve, the low-pressure end of a ventilation pressure pipeline is hung at the rear end of the pressure relief valve, the digital pressure calibrator B is arranged at a pipe body between the balance valve and the gas container B, and the pipe body at the rear end of the gas container B is connected with the high-pressure end of the ventilation pressure pipeline, the output end of the pressure control console is electrically connected with the input end of the processor, and the digital pressure calibrator A and the digital pressure calibrator B are electrically connected with the other input end of the processor.
Optionally, the gas-holding tank a and the gas-holding tank B are integrally cast seamless tank bodies.
Optionally, the measurement ranges of the digital pressure calibrator A and the digital pressure calibrator B are 0-4 MPa, and the digital pressure calibrator A and the digital pressure calibrator B have the function of collecting current and voltage values.
Optionally, the internal gas pre-pressurizing pump of the pressure control console is installed in a built-in embedded manner.
Optionally, static pressure calculation software is configured inside the processor.
Optionally, the detection method of the industrial differential pressure control device is specifically as follows:
s1, air pressure balancing: opening the balance valve, the boost valve and the low pressure valve to communicate the high and low pressure chambers, quickly pressurizing by a gas precompression pump arranged in the precompression pump, then pressurizing to a gas container A by the boost valve, separately connecting the internal gas pressure of the gas container A with a digital pressure calibrator A and a digital pressure calibrator B by the balance valve and the low pressure valve, then connecting the gas in the digital pressure calibrator A with the low pressure end of a gas pressure pipeline by the decompression of a decompression valve, connecting the gas in the digital pressure calibrator B with the high pressure end of the gas pressure pipeline by the gas container B, and continuously communicating and regulating the pressure of the communicated gas pressure by the built-in gas precompression pump arranged in the pressure control console, so that the pressure in the pipeline is regulated to a static pressure value.
S2, pressure detection: after the pressure in the pipeline is stabilized, the processor reads real-time pressure values and output current values of a high-pressure end and a bottom pressure end through a digital pressure calibrator A and a digital pressure calibrator B to serve as zero values, at the moment, a balance valve is closed, a pressure relief valve of the low-pressure end is operated to reduce the pressure of the low-pressure end to 20% range, 60% range, 80% range and full range, after the pressure is stabilized, the processor reads corresponding differential pressure values and output current values through the digital pressure calibrator A and the digital pressure calibrator B to complete the detection of the upper stroke of the differential pressure controller under static pressure, and data of the lower stroke are read in a mode of pressurizing the low-pressure end.
S3, data verification: and checking and comparing the acquired data according to the standard by taking the calibration rule of the existing national standard pressure controller as a parameter data standard reference, wherein if the data conforms to the parameter rule in the calibration rule of the national standard pressure controller, the parallax pressure controller is qualified, and otherwise, the parallax pressure controller is disqualified.
The invention has the following beneficial effects:
the invention collects the data acquisition and verification of the static pressure in the pipeline under the balanced state through devices such as a digital pressure calibrator, a processor and the like, performs data verification and comparison by taking the national standard rule of the differential pressure controller as data reference after the data acquisition, and can judge whether the static pressure of the differential pressure controller is qualified or not after the data comparison, thereby realizing the static pressure detection of the differential pressure controller.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a simplified schematic diagram of a connection of a detection device of a detection method for an industrial differential pressure control apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method for detecting an industrial differential pressure control apparatus according to an embodiment of the present invention will be described in detail with reference to fig. 1.
Referring to fig. 1, a device used in the detection method includes a pressure console (with a built-in gas precompression pump), a digital pressure calibrator a, a digital pressure calibrator B, a processor, a boost valve, a low-pressure valve, a balance valve, a pressure release valve, a gas container a and a gas container B, the gas precompression pump is built in the pressure console, the boost valve is installed between an output end of the pressure console and the gas container a, the low-pressure valve and the balance valve are respectively fixed at two pipelines at an outer side of the gas container a, the digital pressure calibrator a is installed at a pipeline between the low-pressure valve and the pressure release valve, a low-pressure end of a vent pipe is hung at a rear end of the pressure release valve, the digital pressure calibrator B is installed at a pipe between the balance valve and the gas container B, and a pipe body at a rear end of the gas container B is connected with a high-pressure end of the vent pipe, the output end of the pressure control console is electrically connected with the input end of the processor, and the digital pressure calibrator A and the digital pressure calibrator B are electrically connected with the other input end of the processor.
Preferably, the gas-containing tank A and the gas-containing tank B are integrally cast seamless tank bodies.
Preferably, the measurement ranges of the digital pressure calibrator A and the digital pressure calibrator B are 0-4 MPa, and the digital pressure calibrator A and the digital pressure calibrator B have the function of collecting current and voltage values.
Preferably, the internal gas pre-pressurizing pump of the pressure control platform is installed in a built-in embedded mode.
Preferably, the processor is internally provided with static pressure calculation software.
Preferably, the detection method of the industrial differential pressure control device is as follows:
s1, air pressure balancing: opening the balance valve, the boost valve and the low pressure valve to communicate the high and low pressure chambers, quickly pressurizing by a gas precompression pump arranged in the precompression pump, then pressurizing to a gas container A by the boost valve, separately connecting the internal gas pressure of the gas container A with a digital pressure calibrator A and a digital pressure calibrator B by the balance valve and the low pressure valve, then connecting the gas in the digital pressure calibrator A with the low pressure end of a gas pressure pipeline by the decompression of a decompression valve, connecting the gas in the digital pressure calibrator B with the high pressure end of the gas pressure pipeline by the gas container B, and continuously communicating and regulating the pressure of the communicated gas pressure by the built-in gas precompression pump arranged in the pressure control console, so that the pressure in the pipeline is regulated to a static pressure value.
S2, pressure detection: after the pressure in the pipeline is stabilized, the processor reads real-time pressure values and output current values of a high-pressure end and a bottom pressure end through a digital pressure calibrator A and a digital pressure calibrator B to serve as zero values, at the moment, a balance valve is closed, a pressure relief valve of the low-pressure end is operated to reduce the pressure of the low-pressure end to 20% range, 60% range, 80% range and full range, after the pressure is stabilized, the processor reads corresponding differential pressure values and output current values through the digital pressure calibrator A and the digital pressure calibrator B to complete the detection of the upper stroke of the differential pressure controller under static pressure, and data of the lower stroke are read in a mode of pressurizing the low-pressure end.
S3, data verification: and checking and comparing the acquired data according to the standard by taking the calibration rule of the existing national standard pressure controller as a parameter data standard reference, wherein if the data conforms to the parameter rule in the calibration rule of the national standard pressure controller, the parallax pressure controller is qualified, and otherwise, the parallax pressure controller is disqualified.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (6)
1. A detection method of industrial differential pressure control equipment is provided, and the device used in the detection method comprises a pressure control table (a built-in gas precompression pump), a digital pressure calibrator A, a digital pressure calibrator B, a processor, a pressure boosting valve, a low pressure valve, a balance valve, a pressure relief valve, a gas container A and a gas container B, and is characterized in that: the utility model discloses a pressure control platform, including pressure control platform, gas-holding jar A, two pipeline punishments in the gas-holding jar A outside are fixed with low-pressure valve and balanced valve respectively, and the pipeline department between the low-pressure valve and the relief valve installs digital pressure check gauge A, the rear end of relief valve is hung singly and is connect the low pressure end of air pressure pipeline, digital pressure check gauge B is installed to the body between balanced valve and the gas-holding jar B, and the body of gas-holding jar B rear end connects air pressure pipeline high-pressure end, pressure control platform output electric connection has the treater input, another input of digital pressure check gauge A and digital pressure check gauge B electric connection treater.
2. The industrial differential pressure control device detection method according to claim 1, characterized in that: the gas-holding tank A and the gas-holding tank B are integrally cast seamless tank bodies.
3. The industrial differential pressure control device detection method according to claim 1, characterized in that: the measurement range of the digital pressure calibrator A and the measurement range of the digital pressure calibrator B are 0-4 MPa, and the digital pressure calibrator A and the digital pressure calibrator B have the function of collecting current and voltage values.
4. The industrial differential pressure control device detection method according to claim 1, characterized in that: the internal gas precompression pump of the pressure control console is installed in a built-in embedded mode.
5. The industrial differential pressure control device detection method according to claim 1, characterized in that: static pressure calculation software is arranged in the processor.
6. The industrial differential pressure control device detection method according to claim 1, characterized in that: the detection method of the industrial differential pressure control equipment comprises the following specific steps:
s1, air pressure balancing: opening the balance valve, the boost valve and the low pressure valve to communicate the high and low pressure chambers, quickly pressurizing by a gas precompression pump arranged in the precompression pump, then pressurizing to a gas container A by the boost valve, separately connecting the internal gas pressure of the gas container A with a digital pressure calibrator A and a digital pressure calibrator B by the balance valve and the low pressure valve, then connecting the gas in the digital pressure calibrator A with the low pressure end of a gas pressure pipeline by the decompression of a decompression valve, connecting the gas in the digital pressure calibrator B with the high pressure end of the gas pressure pipeline by the gas container B, and continuously communicating and regulating the pressure of the communicated gas pressure by the built-in gas precompression pump arranged in the pressure control console, so that the pressure in the pipeline is regulated to a static pressure value.
S2, pressure detection: after the pressure in the pipeline is stabilized, the processor reads real-time pressure values and output current values of a high-pressure end and a bottom pressure end through a digital pressure calibrator A and a digital pressure calibrator B to serve as zero values, at the moment, a balance valve is closed, a pressure relief valve of the low-pressure end is operated to reduce the pressure of the low-pressure end to 20% range, 60% range, 80% range and full range, after the pressure is stabilized, the processor reads corresponding differential pressure values and output current values through the digital pressure calibrator A and the digital pressure calibrator B to complete the detection of the upper stroke of the differential pressure controller under static pressure, and data of the lower stroke are read in a mode of pressurizing the low-pressure end.
S3, data verification: and checking and comparing the acquired data according to the standard by taking the calibration rule of the existing national standard pressure controller as a parameter data standard reference, wherein if the data conforms to the parameter rule in the calibration rule of the national standard pressure controller, the parallax pressure controller is qualified, and otherwise, the parallax pressure controller is disqualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011187861.7A CN112486138A (en) | 2020-10-30 | 2020-10-30 | Detection method for industrial differential pressure control equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011187861.7A CN112486138A (en) | 2020-10-30 | 2020-10-30 | Detection method for industrial differential pressure control equipment |
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| CN112486138A true CN112486138A (en) | 2021-03-12 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207301826U (en) * | 2017-09-21 | 2018-05-01 | 河北省计量监督检测研究院 | Industrial differential pressure control device detection device |
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- 2020-10-30 CN CN202011187861.7A patent/CN112486138A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207301826U (en) * | 2017-09-21 | 2018-05-01 | 河北省计量监督检测研究院 | Industrial differential pressure control device detection device |
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Application publication date: 20210312 |