CN221004740U - Natural gas pipeline broken pipe protection system with pressure drop rate detection device - Google Patents
Natural gas pipeline broken pipe protection system with pressure drop rate detection device Download PDFInfo
- Publication number
- CN221004740U CN221004740U CN202323119394.6U CN202323119394U CN221004740U CN 221004740 U CN221004740 U CN 221004740U CN 202323119394 U CN202323119394 U CN 202323119394U CN 221004740 U CN221004740 U CN 221004740U
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- natural gas
- gas pipeline
- pressure drop
- protection system
- drop rate
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000003345 natural gas Substances 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 13
- 230000003584 silencer Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model belongs to the field of natural gas conveying pipeline safety guarantee, and in particular relates to a natural gas pipeline pipe breaking protection system with a pressure drop rate detection device. The utility model realizes the effectiveness detection of the pressure drop rate of the pipe breaking protection system, is simple and practical, and can be widely applied.
Description
Technical Field
The utility model belongs to the field of natural gas conveying pipeline safety guarantee, and particularly relates to a natural gas pipeline broken pipe protection system with a pressure drop rate detection device.
Background
The natural gas pipeline broken pipe protection system has the function of detecting the pressure and the pressure drop rate of the natural gas pipeline in real time, when a main line breaks a pipe, the pressure and the pressure drop rate of the pipeline exceed set values to display abnormality, the rapid broken pipe protection system can control the rapid cut-off valve to be closed, the communication of an upstream pipeline and a downstream pipeline is cut off, the economic loss caused by excessive leakage of the natural gas is prevented, and the occurrence of safety accidents is reduced, so that the rapid and accurate detection of the pressure and the pressure drop rate of the broken pipe protection system is guaranteed, and the rapid cut-off valve is controlled to be closed in time.
The natural gas long-distance transportation enterprises can test the broken pipe protection system regularly, when the test pressure is high, the set value is regulated to be under the real-time pressure to observe whether the quick cut-off valve is closed, when the test pressure is low, the set value is regulated to be above the real-time pressure to observe whether the quick cut-off valve is closed, but the effectiveness of the pressure drop rate of the broken pipe protection system is not achieved, the traditional broken pipe protection system cannot be tested effectively in real time, and therefore the scheme capable of solving the problem is very important.
Disclosure of utility model
In order to realize the effectiveness detection of the pressure drop rate of the pipe breaking protection system, the utility model discloses a natural gas pipeline pipe breaking protection system with a pressure drop rate detection device.
The technical scheme of the utility model is as follows:
The utility model provides a broken pipe protection system of natural gas pipeline that possesses pressure drop rate detection device, includes the natural gas pipeline and sets up the quick stop valve on the pipeline, the natural gas pipeline is connected with the pipe, is provided with the ball valve on the pipe near one side of natural gas pipeline, is provided with tee bend, pressure transmitter and detection case on the pipe that keeps away from one side of natural gas pipeline, a tee bend's interface is connected with the hose through quick-operation joint, and the hose connection has the gas holder, the both ends of gas holder are provided with ball valve and ball valve respectively, still are provided with flow control valve on the hose, are provided with pressure and pressure drop transmitter on the gas holder.
Further, the detection box comprises a display component for monitoring and displaying the pressure indication on the main line.
Further, a silencer is arranged on the hose.
Further, an insulating joint is arranged between the tee joint and the pressure transmitter.
The beneficial effects of the utility model are as follows:
according to the natural gas pipeline broken pipe protection system with the pressure drop rate detection device, provided by the utility model, the situation of actual pressure drop rate detection is simulated through the arrangement of the gas storage tank and the branch circuit thereof, the effectiveness detection of the pressure drop rate of the broken pipe protection system is realized under the condition that a main circuit is not influenced, and the device is simple and effective and can be widely applied.
Drawings
Fig. 1 is a schematic structural diagram of a natural gas pipeline broken pipe protection system with a pressure drop rate detection device according to the present utility model.
In the reference numerals, 1-a detection box; 2-a catheter; 3-a pressure transmitter; 4-insulating joints; 5-tee joint; 6-ball valve; 7-a quick connector; 8-hose; 9-ball valve; 10-an air storage tank; 11-pressure and pressure drop transmitters; 12-ball valve; 13-a flow regulating valve; 14-a muffler; 15-a natural gas pipeline; 16-quick shut-off valve.
Detailed Description
In order that the contents of the present utility model may be clearly understood, the present utility model will be described in further detail with reference to specific embodiments thereof with reference to the accompanying drawings.
As shown in fig. 1, a natural gas pipeline broken pipe protection system with a pressure drop rate detection device comprises a natural gas pipeline 15 and a quick cut-off valve 16 arranged on the pipeline, wherein the natural gas pipeline 15 is connected with a guide pipe 2, one side, close to the natural gas pipeline 15, of the guide pipe 2 is provided with a ball valve 6, one side, far away from the natural gas pipeline 15, of the guide pipe 2 is provided with a tee joint 5, a pressure transmitter 3 and a detection box 1, an interface of the tee joint 5 is connected with a hose 8 through a quick connector 7, the hose 8 is connected with a gas storage tank 10, two ends of the gas storage tank 10 are respectively provided with a ball valve 9 and a ball valve 12, a flow regulating valve 13 is further arranged on the hose 8, and the gas storage tank 10 is provided with a pressure and pressure drop transmitter 11.
Examples:
A natural gas pipeline broken pipe protection system with a pressure drop rate detection device is characterized in that the detection box 1 comprises a display component for monitoring and displaying pressure readings on a main line, and a silencer 14 is arranged on a hose 8. An insulating joint 4 is arranged between the tee joint 5 and the pressure transmitter 3.
The detection method based on the protection system comprises the following steps:
Step 1, opening a ball valve 6, opening a ball valve 9, closing a ball valve 12, closing a flow regulating valve 13, and enabling the pressure indication of the main line natural gas filled into a gas storage tank 10 and the pressure and pressure drop transmitter 11 thereof to be consistent with the indication displayed by a detection box 1;
Step 2, closing the ball valve 6, opening the ball valve 12, and adjusting the opening of the flow regulating valve 13 to enable the pressure and pressure drop rate value in the pressure drop transmitter 11 to be higher than a normal value set in a broken pipe protection system, wherein natural gas leaks from the storage tank 10 through the ball valve 12, the flow regulating valve 13 and the silencer 14 at a specified rate;
Step 3, observing whether the quick cut-off valve 16 acts, if the quick cut-off valve 16 acts, the pressure drop rate function of the pipe breaking protection system is normal, and if the quick cut-off valve 16 does not act, the pressure drop rate function of the pipe breaking protection system is abnormal;
And 4, after the test is finished, closing the ball valve 9, draining the natural gas in the gas storage tank 10, closing the ball valve 12, closing the flow regulating valve 13, opening the ball valve 6, and recovering the normal state of the pipe breaking protection system.
The foregoing description of the embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (4)
1. The utility model provides a broken pipe protection system of natural gas pipeline that possesses pressure drop rate detection device, includes natural gas pipeline (15) and quick block valve (16) of setting on the pipeline, its characterized in that: the utility model discloses a gas storage tank, including natural gas pipeline (15), pipe (2), ball valve (6) are provided with on one side that is close to natural gas pipeline (15) on pipe (2), and one side that keeps away from natural gas pipeline (15) on pipe (2) is provided with tee bend (5), pressure transmitter (3) and detects case (1), an interface of tee bend (5) is connected with hose (8) through quick-operation joint (7), and hose (8) are connected with gas holder (10), the both ends of gas holder (10) are provided with ball valve (9) and ball valve (12) respectively, still are provided with flow control valve (13) on hose (8), are provided with pressure and pressure drop transmitter (11) on gas holder (10).
2. The natural gas pipeline breaking protection system with pressure drop rate detection device according to claim 1, wherein: the detection box (1) comprises a display component for monitoring and displaying pressure readings on a main line.
3. The natural gas pipeline breaking protection system with pressure drop rate detection device according to claim 2, characterized in that: a silencer (14) is arranged on the hose (8).
4. The natural gas pipeline breaking protection system with pressure drop rate detection device according to claim 2, characterized in that: an insulating joint (4) is arranged between the tee joint (5) and the pressure transmitter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323119394.6U CN221004740U (en) | 2023-11-20 | 2023-11-20 | Natural gas pipeline broken pipe protection system with pressure drop rate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323119394.6U CN221004740U (en) | 2023-11-20 | 2023-11-20 | Natural gas pipeline broken pipe protection system with pressure drop rate detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221004740U true CN221004740U (en) | 2024-05-24 |
Family
ID=91116609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323119394.6U Active CN221004740U (en) | 2023-11-20 | 2023-11-20 | Natural gas pipeline broken pipe protection system with pressure drop rate detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221004740U (en) |
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2023
- 2023-11-20 CN CN202323119394.6U patent/CN221004740U/en active Active
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