CN110726547A - Portable comprehensive checking device for pressure protection device - Google Patents
Portable comprehensive checking device for pressure protection device Download PDFInfo
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- CN110726547A CN110726547A CN201911074303.7A CN201911074303A CN110726547A CN 110726547 A CN110726547 A CN 110726547A CN 201911074303 A CN201911074303 A CN 201911074303A CN 110726547 A CN110726547 A CN 110726547A
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- pressure
- control device
- pressure protection
- protection device
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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
- 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
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a matched inspection device of large oil-filled equipment of a transformer substation (converter station), in particular to a portable comprehensive checking device for a pressure protection device. The method is characterized in that: including air compressor (2), this air compressor (2) is through the import intercommunication of gas circuit pipeline (17) and gas holder (3), the export of this gas holder (3) is through the import intercommunication of gas circuit pipeline (17) and first solenoid valve (6), the export of this first solenoid valve (6) is equipped with exhaust hole (7), the export of this gas holder (3) still through gas circuit pipeline (17) in proper order with second solenoid valve (8), choke valve (9), the test end of pressure protection device test mouth (10) and pressure sensor (13) is connected, the signal output part and the controlling means (14) of this pressure sensor (13) are connected. The invention has portable design, is easy to assemble on site, and the pressure release device can be quickly installed and put into test.
Description
Technical Field
The invention relates to a matched inspection device of large oil-filled equipment of a transformer substation (converter station), in particular to a portable comprehensive checking device for a pressure protection device.
Background
At present, related mechanisms at home and abroad adopt a direct verification method for verifying pressure protection devices, namely, the devices to be verified are disassembled and sent to a verification table for verification, and the verification method has certain limitations: firstly, the existing calibration device needs to perform pressure calibration on two different test tanks for opening and closing, pressure release valves with different calibers need to be performed on a plurality of test tanks with different volumes, sealing performance needs to be performed on special equipment, and working efficiency is low; secondly, the automation degree of the checking process is low, the pressure test is judged by depending on the indication of a pressure gauge, and the precision cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a portable comprehensive checking device for a pressure protection device, which has a portable design, is easy to assemble on site, and can be quickly installed and put into test.
A portable comprehensive checking device for pressure protection devices is characterized in that: the air compressor is communicated with an inlet of an air storage tank through an air path pipeline, an outlet of the air storage tank is communicated with an inlet of a first electromagnetic valve through the air path pipeline, an outlet of the first electromagnetic valve is provided with an exhaust hole, the outlet of the air storage tank is also sequentially connected with a second electromagnetic valve, a throttle valve, a pressure protection device test port and a test end of a pressure sensor through the air path pipeline, a signal output end of the pressure sensor is connected with a control device, and a control end of the first electromagnetic valve and a control end of the second electromagnetic valve are also respectively connected with the control device; wherein the pressure protection device test port is provided with at least one test valve so as to be connected with a pressure release valve to be tested or a pressure quick-acting relay to be tested.
The control device adopts a PLC or a singlechip, and is provided with a human-computer interface or is connected with an operation computer through an Ethernet.
Wherein the top of the gas storage tank is provided with a pressure gauge and the bottom thereof is provided with a drain hole.
Compared with the prior art, the checking device has the advantages that: the device utilizes this portable pressure protection device to synthesize calibration equipment to dismantle pressure release device from the converter when being applicable to the field overhaul, installs on test device fast, and through the pressurization, intelligent control ware record pressure rising curve and pressure release device action value, judge whether pressure release device is reliable through the comparison action set value. The comprehensive checking device for the portable pressure protection device has a portable design, is easy to assemble on site, and can be quickly installed and put into test. The specific parameters of the comprehensive checking device for the portable pressure protection device meet the national standard, and the truth and the validity of the measured data are ensured. Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.
Drawings
Fig. 1 is a schematic diagram of the integrated calibration apparatus of the present invention.
Detailed Description
As shown in fig. 1, the invention discloses a portable comprehensive calibration device for pressure protection devices, which comprises an integrated oil-free air compressor 2, wherein the integrated oil-free air compressor 2 is respectively connected with a control device 14 and a second electromagnetic valve 8 through leads; the second electromagnetic valve 8 is connected with a control device 14 through a lead; the second electromagnetic valve 8 is sequentially connected with a throttle valve 9 and a pressure protection device test port 10 through an air channel pipeline 17, and the pressure protection device test port 10 is sequentially connected with a pressure sensor 13 and a control device 14 through a lead; the pressure protection device test port 10 is sequentially connected with a detection unit and a control device 14, the control device 14 is connected with an operation computer 16 in a wired or wireless mode through Ethernet, namely the control device is controlled by the computer to act or is directly controlled by a human-computer interface to act.
Further, integration oil-free air compressor 2 includes air compressor 2, air compressor 2 is connected with gas holder 3, manometer 4 is installed at the top of gas holder 3, the outlet has been arranged to 3 bottoms of gas holder, gas holder 3 is connected with first solenoid valve 6 and second solenoid valve 8 respectively through gas circuit pipeline 17, exhaust hole 7 is installed at 6 tops of first solenoid valve. The integrated oil-free air compressor 2 is connected with a control device 14 through a first electromagnetic valve 6. The detection unit comprises a pressure release valve 11 and a pressure quick-acting relay 12, the pressure protection device test port 10 is respectively connected with the pressure release valve 11 and the pressure quick-acting relay 12, and the pressure quick-acting relay 12 is connected with a control device 14 through a lead.
The following embodiments are described in detail with reference to the accompanying drawings, so that how to implement the technical features of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example 1:
the invention discloses a portable comprehensive checking device for a pressure protection device, which comprises an integrated oil-free air compressor 2 as shown in figure 1, wherein the integrated oil-free air compressor 2 is respectively connected with a control device 14 and a second electromagnetic valve 8 through leads; the second electromagnetic valve 8 is connected with a control device 14 through a lead; the second electromagnetic valve 8 is sequentially connected with a throttle valve 9 and a pressure protection device test port 10 through an air channel pipeline 17, and the pressure protection device test port 10 is sequentially connected with a pressure sensor 13 and a control device 14 through a lead; the pressure protection device test port 10 is sequentially connected with a detection unit 18 and a control device 14, and the control device 14 is connected with an operation computer 16 through an Ethernet 15.
Wherein, the integrated oil-free air compressor 2 provides an air source to be connected with the air storage tank 3, and the tank body is simultaneously provided with a pressure gauge 4, an electromagnetic valve and the like. The device has small occupied volume, high integration level and convenient carrying. The control device 14 collects pressure data sent by the pressure sensor 13, and the precision is high and the data is accurate.
Optionally, integration oil-free air compressor 2 includes air compressor 2, air compressor 2 is connected with gas holder 3, manometer 4 is installed at the top of gas holder 3, outlet 5 has been arranged to 3 bottoms of gas holder, gas holder 3 is connected with first solenoid valve 6 and second solenoid valve 8 respectively through gas circuit pipeline 17, exhaust hole 7 is installed at 6 tops of first solenoid valve. Optionally, the integrated oil-free air compressor 2 is connected to a control device 14 via a first solenoid valve 6. Optionally, the detection unit 18 includes a pressure relief valve 11 and a pressure snap relay 12, the pressure protection device test port 10 is connected with the pressure relief valve 11 and the pressure snap relay 12, respectively, and the pressure snap relay 12 is connected with the control device 14 through a wire. In addition, the pressure protection device test port 10 can simultaneously verify the pressure release valve 11 and the pressure quick-acting relay 12, and the maintenance efficiency is greatly improved.
The radius of the pressure protection device test port 10 is adjustable, and the pressure protection device test port can be suitable for verifying pressure release valves 11 and pressure quick-acting relays 12 with different diameters. When the device starts to perform opening pressure and closing pressure tests, the control device 14 acquires the opening pressure value, the aging opening pressure value and the closing pressure value of the pressure release valve 11 by controlling the air inlet electromagnetic valve and acquiring data of the pressure sensor 13 in real time, displays the opening pressure value, the aging opening pressure value and the closing pressure value on the display, and acquires a signal contact of the pressure release valve 11 at the same time. Optionally, when the tightness test is started, the control device 14 controls the air inlet solenoid valve to feed a proper amount of air, the high-precision pressure sensor 13 collects pressure in real time, and the control device 14 controls the operation of each component to complete the tightness check of the pressure release valve 11.
The device is used as a pressure protection device calibration device of large-scale oil-filled equipment of a transformer substation (converter station), time is greatly saved in the process of fault detection processing of the pressure protection device, and stable operation of the transformer substation (converter station) is effectively guaranteed.
The invention discloses a portable comprehensive checking device for a pressure protection device, which comprises an integrated oil-free air compressor 2, wherein the integrated oil-free air compressor 2 is respectively connected with a control device 14 and a second electromagnetic valve 8 through leads; the second electromagnetic valve 8 is connected with a control device 14 through a lead; the second electromagnetic valve 8 is sequentially connected with a throttle valve 9 and a pressure protection device test port 10 through an air channel pipeline 17, and the pressure protection device test port 10 is sequentially connected with a pressure sensor 13 and a control device 14 through a lead; the pressure protection device test port 10 is sequentially connected with a detection unit and a control device 14, and the control device 14 is connected with an operation computer 16 through an Ethernet. The portable comprehensive checking device for the pressure protection device has the advantages of easiness in operation, light weight and the like, can conveniently and quickly check the pressure protection device of the transformer substation (converter station) comprehensively, and greatly improves the running reliability of equipment.
The using method and the working principle of the invention are as follows:
the portable comprehensive pressure protector checking device is suitable for field maintenance, when in use, the pressure release device is detached from a converter and quickly mounted on the testing device, the air compressor 2 is connected with the air storage tank 3 for pressurization, a testing valve on a testing port 10 of the pressure protector is connected with a pressure release valve 11 to be tested or a pressure quick-acting relay 12 to be tested (at the moment, the control end of the relay is also connected with the control device), the control device automatically records a pressure rising curve and an action value of the pressure release device, whether the pressure release device (the pressure release valve 11 to be tested or the pressure quick-acting relay 12 to be tested) is reliable is judged by comparing (according to a preset action set value of a detection standard), the specific judgment method and the program adopt the existing conventional technology, and finally, a judgment result is given through a human-computer interface or an operation computer 16 to inform a worker, of course, it is also possible to provide only the sensor detection data through the human-computer interface or by operating the computer 16, and then to make the comparison determination manually by the staff.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The utility model provides a portable pressure protection device synthesizes calibration equipment which characterized in that: the air compressor comprises an air compressor (2), wherein the air compressor (2) is communicated with an inlet of an air storage tank (3) through an air path pipeline (17), an outlet of the air storage tank (3) is communicated with an inlet of a first electromagnetic valve (6) through the air path pipeline (17), an outlet of the first electromagnetic valve (6) is provided with an exhaust hole (7), the outlet of the air storage tank (3) is also sequentially connected with a second electromagnetic valve (8), a throttle valve (9), a pressure protection device test port (10) and a test end of a pressure sensor (13) through the air path pipeline (17), a signal output end of the pressure sensor (13) is connected with a control device (14), and a control end of the first electromagnetic valve (6) and a control end of the second electromagnetic valve (8) are also respectively connected with the control device (14); wherein, the pressure protection device test port (10) is provided with at least one test valve so as to be connected with a pressure release valve (11) to be tested or a pressure quick-acting relay (12) to be tested.
2. The portable integrated calibration device for pressure protection devices of claim 1, wherein: the control device (14) adopts a PLC or a singlechip, and the control device (14) is provided with a human-computer interface or the control device (14) is connected with an operation computer (16) through an Ethernet.
3. The portable integrated calibration device for pressure protection devices of claim 1, wherein: wherein the top of the air storage tank (3) is provided with a pressure gauge (4) and the bottom thereof is provided with a drain hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911074303.7A CN110726547A (en) | 2019-11-06 | 2019-11-06 | Portable comprehensive checking device for pressure protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911074303.7A CN110726547A (en) | 2019-11-06 | 2019-11-06 | Portable comprehensive checking device for pressure protection device |
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| Publication Number | Publication Date |
|---|---|
| CN110726547A true CN110726547A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911074303.7A Pending CN110726547A (en) | 2019-11-06 | 2019-11-06 | Portable comprehensive checking device for pressure protection device |
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| Country | Link |
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| CN (1) | CN110726547A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397895A (en) * | 2020-05-20 | 2020-07-10 | 湖北圣信特种设备检测有限公司 | Vehicle-mounted modular safety valve offline checking and maintaining device based on Internet of things |
| CN114397105A (en) * | 2021-12-10 | 2022-04-26 | 国网河北省电力有限公司电力科学研究院 | Pressure relief valve calibration device and calibration method for oil-immersed transformer |
-
2019
- 2019-11-06 CN CN201911074303.7A patent/CN110726547A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397895A (en) * | 2020-05-20 | 2020-07-10 | 湖北圣信特种设备检测有限公司 | Vehicle-mounted modular safety valve offline checking and maintaining device based on Internet of things |
| CN114397105A (en) * | 2021-12-10 | 2022-04-26 | 国网河北省电力有限公司电力科学研究院 | Pressure relief valve calibration device and calibration method for oil-immersed transformer |
| CN114397105B (en) * | 2021-12-10 | 2023-08-08 | 国网河北省电力有限公司电力科学研究院 | Pressure release valve calibration device and calibration method for oil immersed transformer |
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