CN211121956U - Portable comprehensive checking device for pressure protection device - Google Patents
Portable comprehensive checking device for pressure protection device Download PDFInfo
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- CN211121956U CN211121956U CN201921896951.6U CN201921896951U CN211121956U CN 211121956 U CN211121956 U CN 211121956U CN 201921896951 U CN201921896951 U CN 201921896951U CN 211121956 U CN211121956 U CN 211121956U
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- pressure protection
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- protection device
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Abstract
The utility model relates to a supporting check-out set of the large-scale oil charge equipment of transformer substation (converter station), especially a portable pressure protection device synthesizes calibration equipment. 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 utility model discloses have portable design, the on-the-spot easy equipment, pressure release device can install fast and drop into the test.
Description
Technical Field
The utility model relates to a supporting check-out set of the large-scale oil charge equipment of transformer substation (converter station), especially a portable pressure protection device synthesizes calibration equipment.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable pressure protection device synthesizes calibration equipment, it has portable design, and the on-the-spot equipment easily, pressure release can install fast and drop into the 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 P L C or a single chip microcomputer, and is provided with a human-computer interface or is connected with an operation computer through 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 utility model discloses a calibration equipment advantage is: 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 product of the present invention to achieve all of the above-described technical effects simultaneously.
Drawings
Fig. 1 is a schematic diagram of the comprehensive checking device of the present invention.
Detailed Description
As shown in fig. 1, the utility model 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 wires; 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 will be described in detail with reference to the accompanying drawings, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Example 1:
the utility model discloses a portable comprehensive calibration device for pressure protection devices, as shown in figure 1, comprising 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 wires; 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 utility model discloses regard the device as the large-scale oil charge equipment pressure protection device calibration equipment of transformer substation (converter station) to save time greatly in the pressure protection device trouble test processing effectively ensures transformer substation (converter station) steady operation conscientiously.
The utility model 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, and the control device 14 is connected with an operation computer 16 through an Ethernet. The utility model discloses utilize this portable pressure protection device to synthesize calibration equipment to have advantages such as easy operation, light in weight, can convenient and fast carry out transformer substation (converter station) pressure protection device and synthesize the calibration, lifting means operational reliability greatly.
The utility model discloses a use method and theory of operation are:
the utility model discloses a portable pressure protection device comprehensive calibration device is applicable to the field maintenance, when using, the pressure release device is dismantled from the converter, and is quickly installed on the testing device of the utility model, the air storage tank 3 is connected through the air compressor 2 for pressurization, the testing valve on the testing port 10 of the pressure protection device is connected with the pressure release valve 11 to be tested or the pressure quick-acting relay 12 to be tested (at this time, the relay control end is also connected with the control device), the control device automatically records the pressure rising curve and the action value of the pressure release device, the reliability of the pressure release device (the pressure release valve 11 to be tested or the pressure quick-acting relay 12 to be tested) is judged through comparing (according to the action set value preset by the detection standard), the specific judgment method and program adopt the existing conventional technology, and finally the judgment result is given through the human-computer interface or the operation computer, 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 intended to be exhaustive of other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But variations and modifications which do not depart from the spirit and scope of the invention should be construed as being included in the scope of 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) is a P L C or a single chip microcomputer, the control device (14) has a man-machine interface or the control device (14) is connected with the operation computer (16) through 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 |
|---|---|---|---|
| CN201921896951.6U CN211121956U (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 |
|---|---|---|---|
| CN201921896951.6U CN211121956U (en) | 2019-11-06 | 2019-11-06 | Portable comprehensive checking device for pressure protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121956U true CN211121956U (en) | 2020-07-28 |
Family
ID=71698335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921896951.6U Active CN211121956U (en) | 2019-11-06 | 2019-11-06 | Portable comprehensive checking device for pressure protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121956U (en) |
-
2019
- 2019-11-06 CN CN201921896951.6U patent/CN211121956U/en active Active
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