CN209762727U - natural gas series pressure regulating valve pressure reducing device - Google Patents
natural gas series pressure regulating valve pressure reducing device Download PDFInfo
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- CN209762727U CN209762727U CN201920425723.4U CN201920425723U CN209762727U CN 209762727 U CN209762727 U CN 209762727U CN 201920425723 U CN201920425723 U CN 201920425723U CN 209762727 U CN209762727 U CN 209762727U
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- shell
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- natural gas
- pressure regulating
- pipeline
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Abstract
A pressure reducing device of a natural gas series pressure regulating valve comprises a shell, wherein the shell is divided into a front part and a rear part by a partition plate with holes, the front part inside the shell is provided with two groups of parallel electromagnetic valves A and pressure regulating valves, the rear part inside the shell is provided with a group of pressure regulating valves and electromagnetic valves B, and the group of pressure regulating valves and the front part inside the shell are combined in series in parallel. The front end of the top of the shell is provided with an air inlet pipe, the rear end of the top of the shell is provided with an air outlet pipe, the air inlet pipe and the air outlet pipe are connected through a gas transmission pipeline, the gas transmission pipeline is sequentially provided with an air heating device and an air pump from front to back, and the air suction direction of the air pump is from the air outlet pipe to the air inlet pipe; the front part and the rear part of the inside of the shell are respectively provided with a natural gas sensor, and alarms which are respectively connected with the natural gas sensors at different positions through wires are arranged outside the shell. The utility model discloses have the defrosting function and leak alarming function, the accessible normal pressure regulating of breaking down also supplies gas, can obtain the natural gas that stability is good, fluctuation range is little.
Description
Technical Field
The utility model relates to a natural gas flow control technical field, concretely relates to natural gas series connection air-vent valve pressure relief device.
Background
Because the pressure during the natural gas transportation process is bigger than the pressure when actually using, for normal use, protect corresponding natural gas equipment, need reduce natural gas pressure through the pressure relief device before putting into service, the air-vent valve is one of the natural gas pressure relief equipment commonly used, because the pressure regulating range is big, the pressure fluctuation scope of natural gas is great after the pressure regulating, stability is not high, do not use, consequently often use two air-vent valves in series, carry out preliminary pressure regulating by the air-vent valve that is close to the gas transmission mouth, reduce the natural gas pressure fluctuation scope, carry out secondary pressure regulating by the air-vent valve that leans on afterwards and can obtain the natural gas that pressure is stable and in usable range. Because the pressure regulating valve that carries out preliminary pressure regulating will bear more impact, consequently more break down than the pressure regulating valve that carries out secondary pressure regulating more easily, need the maintenance of stopping supple of gas when the trouble appears, influence normal air feed. In addition, when the pressure regulating valve is used for reducing pressure, the natural gas absorbs heat, so that the frosting phenomenon is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a natural gas series connection air-vent valve pressure relief device that has defrosting function and leak alarming function, and also can normally adjust the pressure and supply gas breaks down.
The technical scheme of the utility model as follows:
The utility model relates to a natural gas series connection air-vent valve pressure relief device, its characterized in that: the air inlet pipe is arranged at the front end of the shell, and the air outlet pipe is arranged at the rear end of the shell; the front part of the inside of the shell is provided with two parallel pipelines A, the front ends of the pipelines A are connected with each other, the connection part of the pipelines A is communicated with the air inlet pipe, the rear ends of the pipelines A are connected with each other, the connection part of the pipelines A is provided with a switching pipe penetrating through the clapboard with holes, and the pipelines A are sequentially provided with an electromagnetic valve A and a pressure regulating valve from front to back; a pipeline B is arranged at the rear part inside the shell, the front end of the pipeline B is connected with the adapter tube, the rear end of the pipeline B is connected with the air outlet tube, and the pipeline B is sequentially provided with a pressure regulating valve and an electromagnetic valve B from front to back; an air inlet pipe leading to the front part of the inside of the shell is arranged at the front end of the top of the shell, an air outlet pipe leading to the rear part of the inside of the shell is arranged at the rear end of the top of the shell, the air inlet pipe and the air outlet pipe are connected through an air conveying pipeline, an air heating device and an air pump are sequentially arranged on the air conveying pipeline from front to back, and the air pumping direction of the air pump is from the air outlet pipe to the air inlet pipe; the front portion of the inside of casing is equipped with natural gas sensor A, the rear portion of the inside of casing is equipped with natural gas sensor B, the casing is equipped with separately and connects through the wire alarm A and alarm B of natural gas sensor A and natural gas sensor B.
The air heating device is an electric heating coil.
And a filter screen is arranged in front of the air inlet end of the air pump on the air transmission pipeline.
The utility model discloses the beneficial technological effect who has: the utility model can obtain natural gas with good stability and small fluctuation range; by circulating hot air, the surrounding environment of the pressure regulating valve is ensured to be difficult to frost, and the frost is prevented from interfering the operation of the device; the parallel pressure regulating valves are arranged for the pressure regulating valve for primary pressure regulation, and when the pressure regulating valve in use fails, the normal operation of the device can be maintained through simple switching, so that the working stability is ensured; an alarm device is arranged to feed back abnormal conditions in time, and loss caused by leakage is avoided.
Drawings
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the natural gas monitoring device comprises a shell 1, a partition plate with holes 2, an air inlet pipe 3, an air outlet pipe 4, a pipeline 5, a pipeline A, a pipeline 6, a pipeline B7, a switching pipe 8, an electromagnetic valve A, an electromagnetic valve B9, a pressure regulating valve 10, an air inlet pipe 11, an air outlet pipe 12, a gas transmission pipeline 13, an air heating device 14, an air suction pump 15, a natural gas sensor A16, a natural gas sensor B17, an alarm A18, an alarm B19, a lead wire 20 and a filter screen 21.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model relates to a natural gas series pressure regulating valve pressure reducing device, its characterized in that: the air purifier comprises a shell 1, wherein the shell 1 is divided into a front part and a rear part by a clapboard 2 with holes, the front end of the shell 1 is provided with an air inlet pipe 3, and the rear end of the shell 1 is provided with an air outlet pipe 4; the front part of the interior of the shell 1 is provided with two parallel pipelines A5, the front ends of the pipelines A5 are connected with each other and the connection part is communicated with the air inlet pipe 3, the rear ends of the pipelines A5 are connected with each other and the connection part is provided with a switching pipe 7 penetrating through the clapboard with holes 2, and the pipelines A5 are sequentially provided with an electromagnetic valve A8 and a pressure regulating valve 10 from front to back; the rear part of the interior of the shell 1 is provided with a pipeline B6, the front end of a pipeline B6 is connected with the adapter tube 7, the rear end of a pipeline B6 is connected with the air outlet tube 4, and the pipeline B6 is sequentially provided with a pressure regulating valve 10 and an electromagnetic valve B9 from front to back; an air inlet pipe 11 which leads to the front part of the inside of the shell 1 is arranged at the front end of the top of the shell 1, an air outlet pipe 12 which leads to the rear part of the inside of the shell 1 is arranged at the rear end of the top of the shell 1, the air inlet pipe 11 is connected with the air outlet pipe 12 through an air conveying pipeline 13, the air conveying pipeline 13 is sequentially provided with an air heating device 14 and an air suction pump 15 from front to back, and the air suction direction of the air suction pump 15 is from the air outlet pipe 12 to the air inlet pipe 11; the front part of the interior of the shell 1 is provided with a natural gas sensor A16, the rear part of the interior of the shell 1 is provided with a natural gas sensor B17, and the exterior of the shell 1 is provided with an alarm A18 and an alarm B19 which are respectively connected with the natural gas sensor A16 and the natural gas sensor B17 through leads 20.
The air heating device 14 is an electric heating coil.
The gas transmission pipeline 13 is provided with a filter screen 21 in front of the gas inlet end of the air pump 15.
The working principle of the example is as follows:
The natural gas entering from the gas inlet pipe 3 is subjected to primary pressure reduction through the pressure regulating valve 10 on the pipeline A5, after the pressure reduction, the pressure of the natural gas is adjusted, the fluctuation range of the natural gas is reduced, and at the moment, an interval which is not in the pressure range during normal use of the natural gas possibly exists in the pressure range of the natural gas due to the fact that the pressure fluctuation range of the original natural gas is large. And then, the natural gas enters the pressure regulating valve 10 on the pipeline B6 through the adapter tube 7, compared with the natural gas which is not subjected to pressure regulation before, the fluctuation range of the natural gas is reduced after the natural gas is subjected to primary pressure regulation, the interval which is not in the normal use pressure range of the natural gas is smaller, the natural gas can be processed more easily, and the natural gas meeting the pressure requirement is finally obtained.
When the pipeline A5 has a fault, the solenoid valve A8 on the pipeline A5 which is in use is closed, and then the solenoid valve on the pipeline A5 which is waiting before is opened, so that the pipeline A can be continuously used. The natural gas sensor A16 and the natural gas sensor B17 are used for finding leakage in time, reminding operators of occurrence of faults and reducing loss possibly caused by leakage.
Air is pushed by the air pump 15, the air heating device 14 heats the air to form hot air, the hot air enters the shell 1 through the air inlet pipe 11, the hot air passes through the perforated partition plate 2 from the front part of the shell 1 to the rear part of the shell 1, then leaves the shell 1 from the air outlet pipe 12, and is filtered by the filter screen 21 to return to the air pump 15 to complete a cycle. Through the circulating hot air, the surrounding environment of the pressure regulating valve 10 is ensured to be difficult to frost, and the phenomenon of frosting is prevented from interfering the operation of the device.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a natural gas series pressure-regulating valve pressure relief device which characterized in that: the air inlet pipe is arranged at the front end of the shell, and the air outlet pipe is arranged at the rear end of the shell; the front part of the inside of the shell is provided with two parallel pipelines A, the front ends of the pipelines A are connected with each other, the connection part of the pipelines A is communicated with the air inlet pipe, the rear ends of the pipelines A are connected with each other, the connection part of the pipelines A is provided with a switching pipe penetrating through the clapboard with holes, and the pipelines A are sequentially provided with an electromagnetic valve A and a pressure regulating valve from front to back; a pipeline B is arranged at the rear part inside the shell, the front end of the pipeline B is connected with the adapter tube, the rear end of the pipeline B is connected with the air outlet tube, and the pipeline B is sequentially provided with a pressure regulating valve and an electromagnetic valve B from front to back; an air inlet pipe leading to the front part of the inside of the shell is arranged at the front end of the top of the shell, an air outlet pipe leading to the rear part of the inside of the shell is arranged at the rear end of the top of the shell, the air inlet pipe and the air outlet pipe are connected through an air conveying pipeline, an air heating device and an air pump are sequentially arranged on the air conveying pipeline from front to back, and the air pumping direction of the air pump is from the air outlet pipe to the air inlet pipe; the front portion of the inside of casing is equipped with natural gas sensor A, the rear portion of the inside of casing is equipped with natural gas sensor B, the casing is equipped with separately and connects through the wire alarm A and alarm B of natural gas sensor A and natural gas sensor B.
2. The natural gas series pressure regulating valve pressure reducing device of claim 1, wherein: the air heating device is an electric heating coil.
3. The natural gas series pressure regulating valve pressure reducing device of claim 1, wherein: and a filter screen is arranged in front of the air inlet end of the air pump on the air transmission pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425723.4U CN209762727U (en) | 2019-04-01 | 2019-04-01 | natural gas series pressure regulating valve pressure reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920425723.4U CN209762727U (en) | 2019-04-01 | 2019-04-01 | natural gas series pressure regulating valve pressure reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209762727U true CN209762727U (en) | 2019-12-10 |
Family
ID=68757238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920425723.4U Expired - Fee Related CN209762727U (en) | 2019-04-01 | 2019-04-01 | natural gas series pressure regulating valve pressure reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209762727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307987A (en) * | 2023-11-29 | 2023-12-29 | 常州市潞城燃气设备股份有限公司 | 5G-based gas pressure regulator fault detection system |
-
2019
- 2019-04-01 CN CN201920425723.4U patent/CN209762727U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307987A (en) * | 2023-11-29 | 2023-12-29 | 常州市潞城燃气设备股份有限公司 | 5G-based gas pressure regulator fault detection system |
| CN117307987B (en) * | 2023-11-29 | 2024-02-20 | 常州市潞城燃气设备股份有限公司 | 5G-based gas pressure regulator fault detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210401 |