CN217482539U - Large-pressure-difference flow guide device for gas burning valve station - Google Patents
Large-pressure-difference flow guide device for gas burning valve station Download PDFInfo
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- CN217482539U CN217482539U CN202220976236.9U CN202220976236U CN217482539U CN 217482539 U CN217482539 U CN 217482539U CN 202220976236 U CN202220976236 U CN 202220976236U CN 217482539 U CN217482539 U CN 217482539U
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- water diversion
- flow guide
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Abstract
The utility model relates to a large pressure difference flow guiding device for a gas burning valve station, which comprises a flow guiding pipeline, wherein the inlet of the flow guiding pipeline is communicated with the front end position of a main gas path inlet pipeline close to a main path valve connecting part, and the outlet of the flow guiding pipeline is communicated with the rear end position of a main gas path outlet pipeline close to a main path valve connecting part; the pipe diameter of the diversion pipeline is smaller than that of the main pipeline; the water diversion stop valve is characterized by comprising a water diversion switch valve and a water diversion stop valve, wherein the water diversion switch valve and the water diversion stop valve are connected in series from front to back and are installed on a water diversion pipeline. The device reduces the pressure difference value at two ends of the valve, has good flow guiding effect, effectively adjusts the flow, prolongs the service life of the main valve, can relieve the impact and the damage of the airflow to the downstream elements, and ensures the stable operation of the whole equipment.
Description
Technical Field
The utility model belongs to large-scale gas station transmission and distribution field, concretely relates to big pressure differential guiding device for firing gas station.
Background
At present, a large-scale gas station system in China is generally an intermediate important link for receiving gas field gas collection pipelines and town gas pipelines. The bearing capacity and the carrying pressure value are high, the whole system pipeline, the valve pressure grade and the circulation caliber are large, especially, a system head end valve usually adopts a high-pressure-resistant electric ball valve which is good in sealing performance, rapid in opening and closing and convenient for remote control, when the valve is opened, because the pressure difference between two sides of an internal sealing spherical surface of the valve is large, the valve is easy to damage, the service life of the valve is further shortened, the maintenance cost is improved, violent impact can be caused to a rear end element, and the working condition safety is damaged. How to solve the disadvantage is a problem to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide one kind can cushion the valve front and back pressure differential balance, improve valve life, reduce cost of maintenance's the big pressure differential guiding device that is used for firing valve station.
The above object of the present invention is achieved by the following technical solutions:
a big pressure differential guiding device for a combustion valve station is characterized in that:
the gas main path valve comprises a flow guide pipeline, wherein an inlet of the flow guide pipeline is communicated with the front end position of a main path gas inlet pipeline close to a main path valve connecting part, and an outlet of the flow guide pipeline is communicated with the rear end position of a main path gas outlet pipeline close to a main path valve connecting part; the pipe diameter of the diversion pipeline is smaller than that of the main pipeline;
the water diversion pipeline is characterized by further comprising a water diversion switch valve and a water diversion stop valve, wherein the water diversion switch valve and the water diversion stop valve are connected in series from front to back and are installed on the water diversion pipeline.
Further: the diversion switch valve adopts a diversion flange ball valve.
And further: the pipe diameter of the flow guide pipeline is 1/8-1/5 of the pipe diameter of the main pipeline.
And further: and a pressure gauge can be arranged at the rear end of the position, connected with the flow guide pipeline, on the outlet pipeline of the main gas pipeline.
The utility model has the advantages of and positive effect:
1. the utility model discloses the diversion pipeline of setting connects outside being located main road valve hookup location's both ends on the main road pipeline, when opening the main road valve before, can preferentially open the diversion pipeline for a small amount of gas colludes main road valve rear end, makes main road valve body both sides pressure differential value reduce like this, and the switching main road valve is easier, and the impact of valve body both sides is balanced and is alleviated, has reduced the maintenance.
2. The utility model discloses a set up the water conservancy diversion pipeline, its bore obviously is less than the main road bore, and the circulation is little, just can control the valve through the manpower, practices thrift whole equipment cost.
3. To general large-scale door station because of the site operation needs, set up first stage and second stage engineering to cause the main road incoming gas flow to have the problem of deviation, the utility model discloses set up bivalve structure on the honeycomb duct line, wherein the stop valve of rear end in the honeycomb duct line, can artificially manual operation adjusts the flow, makes the operability more nimble applicable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The structure of the present invention will be further explained by embodiments with reference to the drawings. It is to be understood that this embodiment is illustrative and not restrictive.
A large pressure difference flow guiding device for a fuel valve station is disclosed, referring to fig. 1, and the invention points are as follows: a diversion pipeline 4 is connected in parallel at the front and back positions of the main pipeline where the main pipeline valve 2 (namely the head end valve) is installed, and the material of the diversion pipeline is the same as that of the main pipeline. Specifically, an opening is processed at the front end of the pipe wall of the gas main path inlet pipeline 1 close to the connecting position with the main path valve, and the inlet end of the flow guide pipeline is connected with the gas main path inlet pipeline in a welding mode at the opening position. An opening is processed at the back end of the pipe wall of the main gas path outlet pipeline 3 close to the connecting position with the main path valve, and the outlet end of the flow guide pipeline is connected with the main gas path outlet pipeline in a welding mode at the opening position. The straight line of the diversion pipeline is far smaller than the diameter of the main branch pipeline, and preferably, the diameter of the diversion pipeline is 1/8-1/5 of the main branch pipeline. The diversion switch valve 6 and the diversion stop valve 5 are installed on the diversion pipeline in series from front to back, the diversion switch valve preferably adopts a diversion flange ball valve, the flange ball valve has better bearing capacity, and the transportation and use requirements of high-pressure gas are met. The diversion pipeline is provided with a flange ball valve firstly to play a role in shutting off, and then is connected with a stop valve to adjust the flow.
In addition to the above main technical features, a pressure gauge (not shown in the attached drawings) may be further installed at the rear end of the main gas outlet pipeline at the connection position with the diversion pipeline, for detecting that the gas pressure in the main gas outlet pipeline reaches a value in the process of pressure relief through the diversion pipeline, so as to open the main valve in time.
The working principle of the large-pressure-difference flow guide device for the gas burning valve station is as follows:
before the device is used, the main path valve 2 needs to be closed, the diversion pipeline flange ball valve 6 is opened preferentially, the hand wheel of the stop valve 5 is rotated slowly, the flow ventilation volume is adjusted, when the pressure difference between the front side and the rear side of the main path valve 2 approaches, the diversion pipeline flange ball valve 6 is closed, the diversion passage is closed, and the main path valve 2 is opened again, so that the aims of prolonging the service life of the valve, reducing the maintenance cost and ensuring the safe operation of the whole device are fulfilled.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the invention and the scope of the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. A big pressure differential guiding device for a combustion valve station is characterized in that: the gas main path valve comprises a flow guide pipeline, wherein an inlet of the flow guide pipeline is communicated with the front end position of a main path gas inlet pipeline close to a main path valve connecting part, and an outlet of the flow guide pipeline is communicated with the rear end position of a main path gas outlet pipeline close to a main path valve connecting part; the pipe diameter of the diversion pipeline is smaller than that of the main pipeline;
the water diversion pipeline is characterized by further comprising a water diversion switch valve and a water diversion stop valve, wherein the water diversion switch valve and the water diversion stop valve are connected in series from front to back and are installed on the water diversion pipeline.
2. The large pressure differential flow guide for a fuel valve station of claim 1, wherein: the diversion switch valve adopts a diversion flange ball valve.
3. The large pressure differential flow guide for a fuel valve station of claim 1, wherein: the pipe diameter of the diversion pipeline is 1/8-1/5 of the pipe diameter of the main pipeline.
4. The large pressure differential flow guide for a fuel valve station of claim 1, wherein: and a pressure gauge can be arranged at the rear end of the position connected with the flow guide pipeline on the outlet pipeline of the main gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220976236.9U CN217482539U (en) | 2022-04-26 | 2022-04-26 | Large-pressure-difference flow guide device for gas burning valve station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220976236.9U CN217482539U (en) | 2022-04-26 | 2022-04-26 | Large-pressure-difference flow guide device for gas burning valve station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217482539U true CN217482539U (en) | 2022-09-23 |
Family
ID=83308809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220976236.9U Active CN217482539U (en) | 2022-04-26 | 2022-04-26 | Large-pressure-difference flow guide device for gas burning valve station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217482539U (en) |
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2022
- 2022-04-26 CN CN202220976236.9U patent/CN217482539U/en active Active
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