CN212514027U - Pressure test tool - Google Patents
Pressure test tool Download PDFInfo
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- CN212514027U CN212514027U CN202021063249.4U CN202021063249U CN212514027U CN 212514027 U CN212514027 U CN 212514027U CN 202021063249 U CN202021063249 U CN 202021063249U CN 212514027 U CN212514027 U CN 212514027U
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Abstract
The utility model discloses a pressure test tool, which comprises a pressure source inlet, a PLC, a control cabinet and a conveying pipe, wherein the pressure source inlet is arranged at the leftmost position, the conveying pipe is connected and arranged at the rear end of the pressure source inlet, and a buffer tank is connected and arranged at the rear end of the conveying pipe; the utility model has the advantages of reasonable design, convenient to use is convenient for remove, and is applicable in any pressure test operating mode, through the data that pressure transmitter and temperature transmitter provided, makes PLC control the condition, time and the pressure test's that pressure test needs to realize pressure test's automated control, effectively avoided the phenomenon of superpressure, excessive pressure, and under the pressure testing source temperature regulation, unsafe factors such as the low temperature brittle failure that arouse have improved pressure test's security.
Description
Technical Field
The utility model belongs to the technical field of pressure test and specifically relates to a pressure test frock is related to.
Background
The traditional pressure test is that the pressure is manually controlled through data displayed by a pressure gauge, and the test time is long, and the pressure boosting time is also long, so that the phenomena of overpressure and overpressure are easy to occur in the test process, and the safety of the pressure test is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pressure test tool for solving the problems mentioned above, which comprises a pressure source inlet, a PLC, a control cabinet and a conveying pipe, wherein the PLC and the control cabinet are arranged at one side position of the conveying pipe, the PLC is connected with the control cabinet and controls the control cabinet to operate, the pressure source inlet is arranged at the leftmost position, the conveying pipe is arranged at the rear end of the pressure source inlet, a buffer tank is arranged at the rear end position of the conveying pipe, a pressure inlet valve, a second pressure gauge and a second electromagnetic valve are sequentially arranged between the pressure source inlet and the buffer tank from left to right, the pressure inlet valve, the second pressure gauge and the second electromagnetic valve are all fixedly arranged on the conveying pipe, an emptying pressure reducing pipe, a first pressure gauge, a pressure transmitter, a temperature transmitter and a drain pipe are arranged on the buffer tank, and a first electromagnetic valve and a pressure reducing valve are arranged on the emptying pipe, the pressure reducing valve is arranged at the rear end of the first electromagnetic valve, the blow-off valve is arranged on the blow-off pipe, the rear end of the buffer tank is respectively connected with an air pressure tank connecting pipe and a hydraulic tank connecting pipe, the positions, close to the tail ends, of the air pressure tank connecting pipe and the hydraulic tank connecting pipe are respectively provided with a flange, and the pressure source inlet, the first electromagnetic valve, the second electromagnetic valve, the pressure transmitter and the temperature transmitter are all connected with the control cabinet and are controlled through the control cabinet.
Preferably, a steam-water separator is arranged on the air pressure tank connecting pipe.
Preferably, the PLC is connected with an emergency stop button.
Preferably, the pressure source inlet may be supplied with pneumatic or hydraulic pressure.
The utility model has the advantages that: the utility model has the advantages of reasonable design, convenient to use is convenient for remove, and is applicable in any pressure test operating mode, through the data that pressure transmitter and temperature transmitter provided, make PLC control the pressure of condition, time and pressure test that pressure test needs to realize pressure test's automatic control, effectively avoided superpressure, excessive pressure's phenomenon, and under the pressure testing source temperature regulation, unsafe factors such as the low temperature brittle failure that arouse have improved pressure test's security
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. a pressure source inlet; 2. a pressure reducing valve; 3. emptying a pressure reducing pipe; 4. a first solenoid valve; 5. a first pressure gauge; 6. a pressure transmitter; 7. a temperature transmitter; 8. a steam-water separator; 9. the air pressure tank is connected with the pipe; 10. a blowoff valve; 11. a pressure inlet valve; 12. a second pressure gauge; 13. a second solenoid valve; 14. a blow-off pipe; 15. a buffer tank; 16. a hydraulic tank connecting pipe; 17. a flange; 18. a control cabinet; 19. a PLC; 20. a delivery pipe; 21. an emergency stop button.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature of the present specification may be replaced by another equivalent or alternative feature serving a similar purpose, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
As shown in figure 1, a pressure test tool comprises a pressure source inlet 1, a PLC19, a control cabinet 18 and a delivery pipe 20, wherein the PLC19 and the control cabinet 18 are arranged at one side position of the delivery pipe 20, the PLC19 is connected with the control cabinet 18 and controls the control cabinet 18 to operate, the pressure source inlet 1 is arranged at the leftmost position, the delivery pipe 20 is connected and arranged at the rear end of the pressure source inlet 1, a buffer tank 15 is connected and arranged at the rear end position of the delivery pipe 20, a pressure inlet valve 11, a second pressure gauge 12 and a second electromagnetic valve 13 are sequentially arranged between the pressure source inlet 1 and the buffer tank 15 from left to right, the pressure inlet valve 11, the second pressure gauge 12 and the second electromagnetic valve 13 are all fixedly arranged on the delivery pipe 20, a pressure reducing pipe 3, a first pressure gauge 5, a pressure transmitter 6, a temperature transmitter 7 and a sewage draining pipe 14 are arranged on the buffer tank 15, be provided with first solenoid valve 4 and pressure reduction valve 2 on the blowdown reducing pipe 3, pressure reduction valve 2 sets up the rear end at first solenoid valve 4, be provided with blowoff valve 10 on the blow off pipe 14, the rear end of buffer tank 15 is connected respectively and is provided with atmospheric pressure jar connecting pipe 9 and hydraulic pressure jar connecting pipe 16, atmospheric pressure jar connecting pipe 9 and hydraulic pressure jar connecting pipe 16 are close to terminal position department and all are provided with flange 17, pressure source import 1, first solenoid valve 4, second solenoid valve 13, pressure transmitter 6 and temperature transmitter 7 all are connected with switch board 18 and control through switch board 18.
And a steam-water separator 8 is arranged on the air pressure tank connecting pipe 9.
The PLC19 is connected with an emergency stop button 21.
The pressure source inlet 1 can be supplied with pneumatic or hydraulic pressure.
In the using process, before pressure input, the pressure input and the pressure maintaining test time length are preset for a PLC, then the pressure inlet valve 11 is opened manually, meanwhile, the PLC19 controls the control cabinet 18 to open the second electromagnetic valve, the pressure reducing valve 2, the first electromagnetic valve 4 and the blow-off valve 10 are in a closed state, if the pressure input source is air pressure, the rear end of the air pressure tank connecting pipe 9 is connected with a test air pressure tank and a flange 17 on the air pressure tank connecting pipe 9 is opened, meanwhile, the hydraulic connecting pipe 16 is in a closed state, then the PLC inputs air pressure according to the set pressure of the inlet 1 of the large and small control pressure source, the air pressure enters the conveying pipe 20 and is conveyed into the buffer tank 15 through the conveying pipe 20, then is conveyed into the air pressure tank connecting pipe 9 through the buffer tank 15, finally, the air pressure is conveyed into the test air pressure tank, after the buffer tank 15 and the test air pressure tank are filled with air pressure, the pressure source inlet 1 stops delivering air pressure, and the PLC19 controls the control cabinet 18 to close the second solenoid valve 13, so as to enter a pressure maintaining test stage, at the moment, the pressure transmitter 6 and the temperature transmitter 7 on the buffer tank transmit the pressure and temperature data in the buffer tank 15 to the PLC19 in real time, if the temperature meets the set conditions, the test is continued, otherwise, the test is closed, the test safety is ensured, the pressure change and the time change curve are drawn through the pressure fed back by the pressure transmitter, the pressure performance and the tightness of the test air pressure tank are qualified, after the pressure maintaining test is finished, the first electromagnetic valve 4 is controlled to be opened through the control cabinet 18, meanwhile, the pressure inlet valve 11 is manually closed, the pressure reducing valve 2 and the blow-down valve 10 are opened to reduce the pressure in the buffer tank and blow down, and then the test air pressure tank is removed from the air pressure tank connecting pipe 9, so that the next test can be conveniently carried out.
If the pressure input source is hydraulic pressure, a test hydraulic tank is connected at the rear end of a hydraulic tank connecting pipe 16, a flange 17 on the hydraulic tank connecting pipe 16 is opened, meanwhile, a pneumatic connecting pipe 9 is in a closed state, then a PLC controls the input hydraulic pressure of a pressure source inlet 1 according to the set pressure to enter a conveying pipe 20 and is conveyed into a buffer tank 15 through the conveying pipe 20, and is conveyed into the hydraulic tank connecting pipe 16 through the buffer tank 15, finally, the hydraulic pressure is conveyed into the test hydraulic tank, after the buffer tank 15 and the test hydraulic tank are filled with hydraulic pressure, the pressure source inlet 1 stops conveying the hydraulic pressure, meanwhile, the PLC19 controls a control cabinet 18 to close a second electromagnetic valve 13, so that a pressure maintaining test stage is carried out, at the moment, a pressure transmitter 6 and a temperature transmitter 7 on the buffer tank transmit data of the pressure and the temperature in the buffer tank 15 to a PLC19 in real time, if the temperature in the buffer tank 15 meets the set conditions, the test continues, otherwise then close, guarantee experimental safety, draw the change curve record of pressure variation and time through the pressure of pressure transmitter feedback, it is qualified to explain its pressure nature of experimental hydraulic pressure jar and leakproofness, after waiting to pressurize the test, open through switch board 18 control first solenoid valve 4, the manual work is closed pressure inlet valve 11 and is opened reducing valve 2 and blowoff valve 10 and carry out the step-down and blowdown in the buffer tank simultaneously, later remove experimental hydraulic pressure jar from hydraulic pressure jar connecting pipe 16, so that carry out the test next time
The second pressure gauge 12 is arranged to monitor the pressure inside the delivery pipe 20 in real time.
The steam-water separator 8 can separate water vapor in the air pressure passing through the air pressure tank connecting pipe 9 when the air pressure tank pressure test is carried out.
The emergency stop button 21 is arranged to stop the pressure test immediately when any emergency occurs in the test, and the PLC19 controls the control cabinet 18 to start a pressure reduction program to open the first electromagnetic valve 4 for pressure reduction, so that the test safety is ensured.
The utility model has the advantages of reasonable design, convenient to use is convenient for remove, and is applicable in any pressure test operating mode, through the data that pressure transmitter and temperature transmitter provided, makes PLC control the condition, time and the pressure test's that pressure test needs to realize pressure test's automated control, effectively avoided the phenomenon of superpressure, excessive pressure, and under the pressure testing source temperature regulation, unsafe factors such as the low temperature brittle failure that arouse have improved pressure test's security.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (4)
1. The utility model provides a pressure test frock, its characterized in that, includes pressure source import (1), PLC (19), switch board (18) and conveyer pipe (20), PLC (19) and switch board (18) all set up the one side position department at conveyer pipe (20), PLC (19) are connected and control switch board (18) operate with switch board (18), pressure source import (1) sets up in extreme left end position department, the rear end of pressure source import (1) is connected and is provided with conveyer pipe (20), the rear end position department of conveyer pipe (20) is connected and is provided with buffer tank (15), turn right from a left side between pressure source import (1) and buffer tank (15) and set gradually pressure inlet valve (11), second manometer (12) and second solenoid valve (13), pressure inlet valve (11), second manometer (12) and second solenoid valve (13) all fix and set up on conveyer pipe (20), an air-releasing pressure-reducing pipe (3), a first pressure gauge (5), a pressure transmitter (6), a temperature transmitter (7) and a sewage draining pipe (14) are arranged on the buffer tank (15), the emptying pressure reducing pipe (3) is provided with a first electromagnetic valve (4) and a pressure reducing valve (2), the pressure reducing valve (2) is arranged at the rear end of the first electromagnetic valve (4), the sewage draining pipe (14) is provided with a sewage draining valve (10), the rear end of the buffer tank (15) is respectively connected with an air pressure tank connecting pipe (9) and a hydraulic tank connecting pipe (16), flanges (17) are arranged at the positions close to the tail ends of the air pressure tank connecting pipe (9) and the hydraulic tank connecting pipe (16), the pressure source inlet (1), the first electromagnetic valve (4), the second electromagnetic valve (13), the pressure transmitter (6) and the temperature transmitter (7) are all connected with the control cabinet (18) and are controlled through the control cabinet (18).
2. The pressure test tool according to claim 1, wherein a steam-water separator (8) is arranged on the air pressure tank connecting pipe (9).
3. The pressure test tool according to claim 1, characterized in that an emergency stop button (21) is connected to the PLC (19).
4. A pressure test tool according to claim 1, characterized in that the pressure source inlet (1) is adapted for pneumatic or hydraulic input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021063249.4U CN212514027U (en) | 2020-06-11 | 2020-06-11 | Pressure test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021063249.4U CN212514027U (en) | 2020-06-11 | 2020-06-11 | Pressure test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212514027U true CN212514027U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021063249.4U Active CN212514027U (en) | 2020-06-11 | 2020-06-11 | Pressure test tool |
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| CN (1) | CN212514027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504123A (en) * | 2021-06-30 | 2021-10-15 | 上海氢枫能源技术有限公司 | Automatic novel pressure test system for hydrogenation station |
-
2020
- 2020-06-11 CN CN202021063249.4U patent/CN212514027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504123A (en) * | 2021-06-30 | 2021-10-15 | 上海氢枫能源技术有限公司 | Automatic novel pressure test system for hydrogenation station |
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