CN114813099A - Automatic detection device for valve performance - Google Patents
Automatic detection device for valve performance Download PDFInfo
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- CN114813099A CN114813099A CN202210391435.8A CN202210391435A CN114813099A CN 114813099 A CN114813099 A CN 114813099A CN 202210391435 A CN202210391435 A CN 202210391435A CN 114813099 A CN114813099 A CN 114813099A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a valve performance automatic detection device.A feedback rod is fixed on a valve push rod, a target block is fixed on the feedback rod, a base is fixed on the edge of a membrane chamber of a pneumatic actuating mechanism, and a laser displacement sensor is arranged on the base; the positioner is fixed on the valve bracket and is connected with the gas flow sensor; the pressure sensor is arranged in a first interface of a membrane chamber three-way joint of the pneumatic actuating mechanism, a second interface of the membrane chamber three-way joint is connected with an upper cavity of the pneumatic actuating mechanism, a third interface of the membrane chamber three-way joint is connected with an air supply path, and the gas flow sensor is connected with the air supply path; the laser displacement sensor, the gas flow sensor and the pressure sensor are connected with an input and output port module, the input and output port module is connected with a PLC (programmable logic controller), the PLC is connected with the console all-in-one machine, and the PLC is connected with the positioner. The invention can simultaneously measure various parameters and improve the testing efficiency.
Description
Technical Field
The invention relates to the technical field of valve manufacturing, in particular to an automatic detection device for valve performance.
Background
The valve is provided with a switch valve and an adjusting valve, wherein the switch valve needs to detect the full stroke time and the stroke opening of the valve action, and the adjusting valve needs to detect various performances (basic error, return difference, dead zone and the like), full stroke action time, starting pressure, air consumption and the like of the valve. The valve can be delivered only after various performances are detected to be qualified, and the current state is that one function is detected by one instrument, and one comprehensive detection device is lacked to detect all the performances of the valve.
The method has the advantages of multiple types of table detection, high cost and low efficiency, and can not quickly summarize data to form a test report after the test is finished.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the automatic valve performance detection device which can simultaneously test various signals, collect data in real time and automatically form a test report.
According to the technical scheme provided by the invention, the automatic detection device for the performance of the valve comprises a test board and a control board, wherein the test board is provided with a valve to be detected, and the valve to be detected is provided with a valve push rod, a valve bracket and a pneumatic actuating mechanism; a PLC controller, an input/output port module and a console all-in-one machine are arranged in the console; the device also comprises a positioner, a target block, a feedback rod, a laser displacement sensor, a gas flow sensor and a pressure sensor;
a feedback rod is fixed on the valve push rod, a target block is fixed on the feedback rod, a base is fixed on the edge of a membrane chamber of the pneumatic actuating mechanism, a laser displacement sensor is mounted on the base, and the laser displacement sensor is matched with the target block;
the positioner is fixed on the valve bracket and is connected with the gas flow sensor through a gas path;
the pressure sensor is arranged in a first interface of a membrane chamber three-way joint of the pneumatic actuating mechanism, a second interface of the membrane chamber three-way joint is connected with an upper cavity of the pneumatic actuating mechanism, a third interface of the membrane chamber three-way joint is connected with an air supply path, and the gas flow sensor is connected with the air supply path;
the laser displacement sensor, the gas flow sensor and the pressure sensor are connected with an input and output port module through signal lines, the input and output port module is connected with a PLC (programmable logic controller) through signal lines, the PLC is connected with the console all-in-one machine through signal lines, and the PLC is further connected with a positioner through signal lines.
The feedback rod is perpendicular to the valve push rod.
The laser displacement sensor is attracted to the base through the magnetic base.
The test bench comprises a base, a hand wheel, a bolt, a left frame and a right frame; the upper surface of base is fixed with left frame and right frame, installs the compact axle in left frame, at the fixed hand wheel of the left end portion of compact axle, is fixed with testboard left flange in the right-hand member portion of compact axle, is fixed with testboard right flange in the left end face of right frame, installs the bolt in the right frame, and testboard left flange compresses tightly the left flange of valve to be tested, testboard right flange compress tightly the right flange of valve to be tested, the bolt inserts in the right flange connecting hole of valve to be tested.
And a keyboard and a printer are connected to the console all-in-one machine.
The bottom of the console is provided with a mute wheel.
The invention has the following advantages:
1. the valve has the functions of valve assembly and performance detection, the valve is fast to install, various sensors are used, various parameters are measured at the same time, various items are tested, the cost of a single measuring instrument is reduced, the testing time is shortened, and the testing efficiency is improved;
2. the stroke of the valve is measured by adopting the laser displacement sensor, the measuring tape and the visual old measuring mode are changed, the precision is improved, and different stroke ranges are met; the installation is convenient, and the time and the labor are saved;
3. the pressure sensor is adopted to measure the air pressure, and the valve parameters (such as the initial pressure of the valve, the friction force of the valve filler and the like) outside the national standard can be measured by utilizing an algorithm;
4. the flow sensor is adopted to measure the gas flow, so that parameters such as gas consumption of the valve can be measured;
5. the detection device tests in real time and records in real time, so that the data is real and effective, and human errors are avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the console of the present invention.
Detailed Description
In order to make those skilled in the art better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to fig. 1 in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. 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.
An automatic detection device for valve performance comprises a test board and a control board, wherein a valve 3 to be detected is arranged on the test board, and the valve 3 to be detected is provided with a valve push rod 5, a valve bracket 6 and a pneumatic actuating mechanism 13; a PLC (programmable logic controller) 15, an input/output port module 16 and a console all-in-one machine 17 are arranged in the console; the device also comprises a positioner 7, a target block 8, a feedback rod 9, a laser displacement sensor 10, a gas flow sensor 11 and a pressure sensor 12;
a feedback rod 9 is fixed on the valve push rod 5, a target block 8 is fixed on the feedback rod 9, a base is fixed on the edge of a film chamber of the pneumatic actuator 13, a laser displacement sensor 10 is installed on the base, and the laser displacement sensor 10 is matched with the target block 8;
the positioner 7 is fixed on the valve bracket 6, and the positioner 7 is connected with the gas flow sensor 11 through a gas path;
the pressure sensor 12 is installed in a first interface of a membrane chamber tee joint of the pneumatic actuator 13, a second interface of the membrane chamber tee joint is connected with an upper cavity of the pneumatic actuator 13, a third interface of the membrane chamber tee joint is connected with an air supply path, and the gas flow sensor 11 is connected with the air supply path;
the laser displacement sensor 10, the gas flow sensor 11 and the pressure sensor 12 are connected with an input and output port module 16 through signal lines, the input and output port module 16 is connected with a PLC (programmable logic controller) 15 through signal lines, the PLC 15 is connected with a console all-in-one machine 17 through signal lines, and the PLC 15 is further connected with a positioner 7 through signal lines.
The feedback rod 9 and the valve push rod 5 are vertically arranged.
The laser displacement sensor 10 is attracted to the base through a magnetic base.
The test bench comprises a base 1, a hand wheel 2, a bolt 4, a left frame 18 and a right frame 19; there are left frame 18 and right frame 19 at the last fixed surface of base 1, install the compact axle on left frame 18, at the fixed hand wheel 2 of the left end portion of compact axle, be fixed with testboard left flange at the right-hand member portion of compact axle, be fixed with testboard right flange at the left end face of right frame 19, install bolt 4 on right frame 19, testboard left side flange compresses tightly the left flange of valve to be tested 3, testboard right flange compress tightly the right flange of valve to be tested 3, bolt 4 inserts in the right flange connecting hole of valve to be tested 3, prevent that valve to be tested 3 from dropping.
A keyboard 20 and a printer 21 are connected to the console all-in-one machine 17.
A mute wheel 14 is mounted at the bottom of the console.
In the invention, a laser displacement sensor 10 measures the stroke value of the actual motion of the valve 3 to be measured, a push rod 5 drives a feedback rod 9 to move when the valve 3 to be measured acts, the laser displacement sensor 10 measures the movement displacement of the feedback rod 9 and transmits real-time data to a control console, and a PLC (programmable logic controller) 15 in the control console calculates the stroke of the action of the valve 3 to be measured through an algorithm and displays the stroke on a human-computer interface of an integrated control console 17.
The positioner 7 outputs an air source signal to the pneumatic actuator 13 to drive the valve to be measured 3 to move up and down, the pressure sensor 12 measures the pressure value of the pneumatic actuator 13, the pressure sensor 12 converts the pressure signal into a standard 4-20 mA signal and sends the standard 4-20 mA signal to the PLC 15 of the console, the PLC 15 is communicated with monitoring software, and the actually measured pressure value is displayed on a human-computer interface of the console all-in-one machine 17.
The gas flow sensor 11 is connected in series in a gas path between the positioner 7 and the pneumatic actuator 13 and used for measuring the instantaneous gas flow in the gas path, the instantaneous gas flow is converted into a standard signal of 4-20 mA by the gas flow sensor 11 and sent to the PLC 15 of the console, the PLC 15 is communicated with detection software, and the actually measured flow value is displayed on a human-computer interface of the console all-in-one machine 17. The PLC 15 calculates the instantaneous flow and the measurement time together, can calculate the air consumption, and displays the air consumption on the human-computer interface of the console all-in-one machine 17.
An independent database is arranged in the console all-in-one machine 17, test data can be accessed, and a test report can be generated in the detection software and historical test data can also be called. The control console all-in-one machine 17 is internally provided with detection software, and a human-computer interface of the detection software is touched to operate a key, so that different pictures can be switched, different test items can be selected, parameters of different performances of the valve can be tested, and a performance test report of the valve 3 to be tested can be obtained.
The working process and principle of the invention are as follows:
firstly, according to fig. 1, the valve 3 to be tested is installed between the left frame 18 and the right frame 19 of the testing table, the positioner 7, the pressure sensor 12 and the gas flow sensor 11 are installed, and the laser displacement sensor 10 and the feedback rod 9 are installed. The air path between the positioner 7, the gas flow sensor 11 and the membrane chamber of the pneumatic actuator 13 is connected, and the signals of the positioner 7 and the sensors are connected into an input/output interface module 16 of the console through cables.
Secondly, inputting a given value into a detection software interface on the console all-in-one machine 17, controlling a PLC (programmable logic controller) 15 in a console case, converting the given value into a corresponding current signal by the PLC 15 and outputting the current signal to the positioner 7, converting the input current signal into a corresponding air signal by the positioner 7 and outputting the air signal to a membrane chamber of the pneumatic actuator 13, the membrane chamber of the pneumatic actuator 13 is converted into a thrust to push the valve rod 5 to move according to the change of input air pressure, the valve rod 5 and the feedback rod 9 connected with the valve rod perform linear displacement motion up and down together, the laser displacement sensor 10 measures the up-and-down displacement value of the feedback rod 9 in real time through the target block 8, and converts the displacement value into a standard current signal and sends the standard current signal to a PLC (programmable logic controller) 15 of a control console through a cable, and the PLC 15 of the console performs data operation processing on the displacement value and the given value, and sends the displacement value and the operation result to a detection software interface on the console all-in-one machine 17 for display.
Meanwhile, the gas flow sensor 11 measures the gas flow value in the gas path in real time, the gas flow sensor 11 converts the gas flow value into a corresponding current signal, and the current signal is sent to the PLC 15 in the console through a cable. The PLC controller 15 processes and performs data operation on the current value and current signal, and sends the operation result to the detection software interface on the console all-in-one machine 17 for display.
Meanwhile, the pressure sensor 12 measures the pressure value of the membrane chamber of the pneumatic actuator 13 in real time, the pressure sensor 12 converts the pressure value into a current signal, and the current signal is sent to the PLC 15 in the console cabinet through a cable. The PLC 15 processes and performs data operation on the current signals, and sends operation results to a detection software interface on the console all-in-one machine 17 for display.
And finally, the detection software on the console all-in-one machine 17 displays data, inquires data and performs report processing, different test items can be selected on the interface of the detection software, automatic or manual tests are performed, results are displayed according to national standards, and the detection software can be developed and customized according to the test items, so that different experimental requirements are met.
Claims (6)
1. The utility model provides a valve performance automatic checkout device which characterized by: the device comprises a test board and a control board, wherein a valve (3) to be tested is arranged on the test board, and the valve (3) to be tested is provided with a valve push rod (5), a valve bracket (6) and a pneumatic actuating mechanism (13); a PLC (programmable logic controller) controller (15), an input/output port module (16) and a console all-in-one machine (17) are arranged in the console; the device also comprises a positioner (7), a target block (8), a feedback rod (9), a laser displacement sensor (10), a gas flow sensor (11) and a pressure sensor (12);
a feedback rod (9) is fixed on the valve push rod (5), a target block (8) is fixed on the feedback rod (9), a base is fixed on the edge of a film chamber of the pneumatic actuator (13), a laser displacement sensor (10) is mounted on the base, and the laser displacement sensor (10) is matched with the target block (8);
the positioner (7) is fixed on the valve bracket (6), and the positioner (7) is connected with the gas flow sensor (11) through a gas path;
the pressure sensor (12) is arranged in a first interface of a membrane chamber three-way joint of the pneumatic actuating mechanism (13), a second interface of the membrane chamber three-way joint is connected with an upper cavity of the pneumatic actuating mechanism (13), a third interface of the membrane chamber three-way joint is connected with an air supply path, and the gas flow sensor (11) is connected with the air supply path;
the laser displacement sensor (10), the gas flow sensor (11) and the pressure sensor (12) are connected with an input and output port module (16) through signal lines, the input and output port module (16) is connected with the PLC (programmable logic controller) (15) through signal lines, the PLC (15) is connected with the console all-in-one machine (17) through signal lines, and the PLC (15) is further connected with the positioner (7) through signal lines.
2. The automatic valve performance testing apparatus of claim 1, wherein: the feedback rod (9) and the valve push rod (5) are vertically arranged.
3. The automatic valve performance testing apparatus of claim 1, wherein: the laser displacement sensor (10) is attracted to the base through the magnetic base.
4. The automatic valve performance testing apparatus of claim 1, wherein: the test bench comprises a base (1), a hand wheel (2), a bolt (4), a left rack (18) and a right rack (19); the upper surface mounting of base (1) has left frame (18) and right frame (19), installs the compact axle on left frame (18), at the fixed hand wheel of the left end portion (2) of compact axle, is fixed with the left flange of testboard at the right-hand member portion of compact axle, is fixed with the right flange of testboard at the left end face of right frame (19), installs bolt (4) on right frame (19), and the left flange of testboard compresses tightly the left flange of valve to be tested (3), the right flange of testboard compress tightly the right flange of valve to be tested (3), bolt (4) insert in the right flange connecting hole of valve to be tested (3).
5. The automatic valve performance testing apparatus of claim 1, wherein: a keyboard (20) and a printer (21) are connected to the console all-in-one machine (17).
6. The automatic valve performance testing apparatus of claim 1, wherein: a mute wheel (14) is arranged at the bottom of the control console.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210391435.8A CN114813099A (en) | 2022-04-14 | 2022-04-14 | Automatic detection device for valve performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210391435.8A CN114813099A (en) | 2022-04-14 | 2022-04-14 | Automatic detection device for valve performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114813099A true CN114813099A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210391435.8A Pending CN114813099A (en) | 2022-04-14 | 2022-04-14 | Automatic detection device for valve performance |
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| Country | Link |
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| CN (1) | CN114813099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969076A (en) * | 2024-04-01 | 2024-05-03 | 山西瑞阳智能供热技术研究中心有限公司 | Valve water pressure resistance performance detection device |
| CN117969076B (en) * | 2024-04-01 | 2024-06-11 | 山西瑞阳智能供热技术研究中心有限公司 | Valve water pressure resistance performance detection device |
-
2022
- 2022-04-14 CN CN202210391435.8A patent/CN114813099A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117969076A (en) * | 2024-04-01 | 2024-05-03 | 山西瑞阳智能供热技术研究中心有限公司 | Valve water pressure resistance performance detection device |
| CN117969076B (en) * | 2024-04-01 | 2024-06-11 | 山西瑞阳智能供热技术研究中心有限公司 | Valve water pressure resistance performance detection device |
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