CN217594092U

CN217594092U - Natural gas pressure-stabilizing filter

Info

Publication number: CN217594092U
Application number: CN202221406622.0U
Authority: CN
Inventors: 曹洪亮; 石美云; 侯磊; 钟磊; 朱韬
Original assignee: Chengdu Est Filter Co ltd
Current assignee: Chengdu Est Filter Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-10-18
Anticipated expiration: 2032-06-07

Abstract

The utility model belongs to the technical field of natural gas transmission device and specifically relates to a simple structure and can effectively realize natural gas steady voltage filter equipment of steady voltage and pressurize, including import, stabiliser and the export that communicates in proper order, including two at least trip valves and filter equipment, be provided with filter equipment between import and the stabiliser, be provided with the trip valve between filter equipment and the import, be provided with another trip valve between stabiliser and the export. Once an abnormal fluctuation in pressure is identified at the inlet, gas shut-off can be achieved by a shut-off valve at the inlet to protect the equipment. Similarly, the stop valve at the outlet can also timely stop abnormal pressure fluctuation, so that the safety of equipment is ensured, and in addition, the maintenance and use cost can also be reduced. The utility model discloses be particularly useful for among the natural gas steady voltage filtration treatment.

Description

Natural gas pressure-stabilizing filter

Technical Field

The utility model belongs to the technical field of the natural gas transmission device and specifically relates to a natural gas steady voltage filter equipment.

Background

In the process of natural gas transportation, the requirements on the stability of natural gas pressure and gas quality are high. When pressure fluctuation of the natural gas is large, the pipeline and the equipment at the back end are easily damaged, and when the impurities in the natural gas are excessive, the pipeline and the equipment at the back end are often polluted. Therefore, a pressure stabilizing filter device is generally added at the outlet end of the natural gas conveying pipeline to ensure the stable transmission of the natural gas. When purifying and filtering the natural gas, adjust higher gas inlet pressure to the lower gas outlet pressure who sets for to along with the change of using the tolerance and the fluctuation of inlet pressure, automatic keep the export pressure value in certain scope, play steady voltage and pressurize effect. The existing natural gas pressure stabilizer structure can not filter and purify natural gas generally, and the single pressure stabilizing valve has the functions of regulation, opening and closing and the like, so that the problem that the service function is lost due to valve needle abrasion can occur when the gas quality of the natural gas is relatively dirty.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a natural gas steady voltage filter equipment that simple structure just can effectively realize steady voltage and pressurize is provided.

The utility model provides a technical scheme that its technical problem adopted is: natural gas steady voltage filter equipment, including import, stabiliser and the export that communicates in proper order, including two at least trip valves and filter equipment, be provided with filter equipment between import and the stabiliser, be provided with the trip valve between filter equipment and the import, be provided with another trip valve between stabiliser and the export.

Further, the filtering device is a filtering tank.

Further, the device comprises a bypass pipeline internally provided with a bypass pipeline switch, one end of the bypass pipeline is connected with the inlet, and the other end of the bypass pipeline is connected with the outlet.

Further, a pressure gauge is arranged at the joint of the bypass pipeline and the inlet.

Further, the bypass pipeline switch is a ball valve.

Further, including the bottom skid, stabiliser and trip valve and filter equipment set up on the bottom skid.

Further, the filtering device comprises a sewage draining outlet.

The utility model has the advantages that: during actual use, natural gas firstly enters through the inlet, then enters into the filtering device for filtering after passing through the stop valve, and the filtered gas passes through the pressure stabilizer to ensure the pressure stability of subsequent gas supply and then is discharged through the outlet after passing through the other stop valve. In addition, once an abnormal fluctuation of the pressure is recognized at the inlet, the gas cut-off can be realized through a cut-off valve at the inlet, so that the protection of the equipment is realized. Similarly, the stop valve at the outlet can also timely stop abnormal pressure fluctuation, so that the safety of the equipment is ensured, and in addition, the maintenance and use cost can also be reduced. The utility model discloses be particularly useful for among the natural gas steady voltage filtration treatment.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Labeled as: the device comprises an inlet 1, a pressure gauge 2, a shut-off valve 3, a filtering device 4, a pressure stabilizer 5, a bypass pipeline 6, a bypass pipeline switch 7, an instrument filter 8, a stop valve 9, an outlet 10 and a bottom sledge 11.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The natural gas pressure stabilizing and filtering device comprises an inlet 1, a pressure stabilizer 5 and an outlet 10 which are sequentially communicated, and comprises at least two shut-off valves 3 and a filtering device 4, wherein the filtering device 4 is arranged between the inlet 1 and the pressure stabilizer 5, the shut-off valve 3 is arranged between the filtering device 4 and the inlet 1, and another shut-off valve 3 is arranged between the pressure stabilizer 5 and the outlet 10.

The design of 1 end of import of natural gas steady voltage filter equipment has trip valve 3, in case when meetting the instantaneous superhigh pressure that appears in the natural gas transportation process and surpassing stabiliser adjusting value scope, the manometer conveys instantaneous pressure value to trip valve 3 to realize promptly closing, guarantee rear end filtration equipment and pressure regulator's safety and stability, thereby realize real time monitoring, automated control. Likewise, the shut-off valve 3 at the outlet 10 is also shut off in the event of an overpressure, so that the device is safe. The filter means 4 is preferably a filter tank, the parameters of which are preferably selected such that the permeability can block solid impurities larger than 20 microns. The separation member inside the filter tank preferably has high wear resistance and excellent corrosion resistance. In addition, the filtering device 4 is preferably provided with a sewage draining outlet for automatic drainage at regular time.

The incoming gas is purified by the natural gas pressure stabilizing and filtering device and then flows into the rear-end equipment. The natural gas pressure stabilizing and filtering device can filter solid impurities and liquid sewage, and the service life of the pressure stabilizer and rear-end equipment is prolonged. In general, the incoming gas pressure of the pipeline is not a constant value, and pressure gauges 2 can be installed at the inlet 1 and the outlet 10 so as to monitor the incoming gas pressure and the outlet pressure.

Preferably, a bypass pipeline 6 provided with a bypass pipeline switch 7 is additionally arranged, one end of the bypass pipeline 6 is connected with the inlet 1, and the other end of the bypass pipeline 6 is connected with the outlet 10. When this scheme can realize overhauing or maintaining, gaseous by pass line 6 of walking to realize not stopping gas and overhaul, debugging, with operations such as trading the filter core. For ease of operation, the bypass line switch 7 is preferably a ball valve.

In order to facilitate the integration of the sledge, thereby realize the effect convenient to transport and install, the following scheme is preferred: including end sledge 11, stabiliser 5 and trip valve 3 and filter equipment 4 set up on end sledge 11.

Claims

1. Natural gas steady voltage filter equipment, including import (1), stabiliser (5) and export (10) that communicate in proper order, its characterized in that: including two at least trip valves (3) and filter equipment (4), be provided with filter equipment (4) between import (1) and stabiliser (5), be provided with trip valve (3) between filter equipment (4) and import (1), be provided with another trip valve (3) between stabiliser (5) and export (10).

2. The natural gas pressure-stabilizing filter device according to claim 1, wherein: the filtering device (4) is a filtering tank.

3. A natural gas pressure-stabilizing filter device according to claim 1 or 2, wherein: the bypass pipeline (6) is internally provided with a bypass pipeline switch (7), one end of the bypass pipeline (6) is connected with the inlet (1), and the other end of the bypass pipeline (6) is connected with the outlet (10).

4. A natural gas pressure stabilizing filter apparatus according to claim 3, wherein: and a pressure gauge (2) is arranged at the joint of the bypass pipeline (6) and the inlet (1).

5. A natural gas pressure stabilizing filter apparatus according to claim 3, wherein: the bypass pipeline switch (7) is a ball valve.

6. A natural gas pressure-stabilizing filter device according to claim 1 or 2, wherein: including end skid (11), stabiliser (5) and trip valve (3) and filter equipment (4) set up on end skid (11).

7. A natural gas pressure-stabilizing filter apparatus according to claim 1 or 2, wherein: the filtering device (4) comprises a sewage draining outlet.