Anti-blocking self-cleaning natural gas pressure reducer

Abstract

The utility model relates to the technical field of natural gas pressure reducers, and discloses an anti-blocking self-cleaning natural gas pressure reducer which comprises a pressure reducing valve and an impurity removing barrel, an inlet and an outlet of the pressure reducing valve are connected with a connecting pipe and a gas outlet pipe respectively, the tail end of the connecting pipe is further communicated with the interior of the side edge of the impurity removing barrel, and a cover plate is fixed above the impurity removing barrel. A filter cylinder is locked between the bottom of the cover plate and the lower part in the impurity removal cylinder, filter holes are uniformly formed in the surface of the filter cylinder, a rotating rod is vertically and rotatably mounted at the bottom of the cover plate, and a scraping plate attached to the inner surface of the filter cylinder is fixed to the side edge of the rotating rod. According to the technical scheme, the rotatable rotating rod is arranged on the inner side of the filter cartridge, and the scraping plate attached to the inner surface of the filter cartridge is fixed on the outer side of the rotating rod, so that the scraping plate can be driven to rotate regularly through the rotating rod to scrape the inner wall of the filter cartridge while natural gas is filtered through the impurity removal cartridge, and the self-cleaning purpose is achieved; and long service time can be realized without manual cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas pressure reducers, in particular to an anti-clogging self-cleaning natural gas pressure reducer. Background Art

[0002] Natural gas pressure reducers are crucial equipment in natural gas transportation and application. Their primary function is to reduce high-pressure natural gas to a suitable low pressure range while ensuring stable output pressure. Through a built-in pressure sensor and automatic adjustment mechanism, the pressure reducer monitors and adjusts upstream pressure in real time to protect downstream equipment and ensure safe gas use. Typically constructed of materials such as brass, the pressure reducer includes components such as a valve rod, a pressure-regulating spring, and an elastic membrane device. After meticulous commissioning, assembly, and rigorous testing, the pressure reducer offers exceptional safety and reliability.

[0003] Since the pressure reducer contains many moving parts, if the natural gas contains solid impurities, it will affect the moving parts and prevent them from moving normally to ensure the pressure reduction effect. Conventional filters need to be cleaned after a period of use to prevent clogging, which is inconvenient. Therefore, we propose an anti-clogging self-cleaning natural gas pressure reducer. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-clogging self-cleaning natural gas pressure reducer. A rotatable rotating rod is arranged on the inner side of the filter cartridge, and a scraper is fixed on the outer side thereof to contact the inner surface of the filter cartridge. While filtering the natural gas through the impurity removal cartridge, the scraper can be regularly driven by the rotating rod to rotate, thereby scraping the inner wall of the filter cartridge to achieve the purpose of self-cleaning. It does not require manual cleaning and can be used for a long time, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a blockage-proof self-cleaning natural gas pressure reducer, comprising a pressure reducing valve and a debris removal barrel, the inlet and outlet of the pressure reducing valve being connected to a connecting pipe and an air outlet pipe respectively, and the end of the connecting pipe is also connected to the side interior of the debris removal barrel; a cover plate is fixed on the top of the debris removal barrel, and the bottom of the cover plate penetrates into the interior of the debris removal barrel through the upper opening of the top of the debris removal barrel, a filter barrel is locked between the bottom of the cover plate and the lower interior of the debris removal barrel, the surface of the filter barrel is evenly provided with filter holes, and the inner surface of the filter barrel is a smooth surface, and the side of the cover plate is connected to an air inlet pipe connected to the interior of the filter barrel; a rotating rod is vertically rotatably installed on the bottom of the cover plate, and the rotating rod is connected to the stepping motor installed on the upper surface of the cover plate, and a scraper that touches the inner surface of the filter barrel is fixed on the side of the rotating rod.

[0006] By adopting the above technical solution, the natural gas is filtered and impurities removed by the filter cartridge inside the impurity removal cylinder before being reduced in pressure by the pressure reducing valve. Impurities coated on the inner surface of the filter cartridge can be scraped off, cleaned and collected by the scraper that is driven to rotate regularly, thereby ensuring a good filtering effect for a long time.

[0007] Optionally, the cover plate is detachably mounted above the debris removal barrel by a first bolt, and a plurality of first bolts are provided.

[0008] By adopting the above technical solution, the cover plate is detachably arranged, and the cover plate can be removed and replaced when the filter cartridge needs to be replaced.

[0009] Optionally, a bottom cover is fixed to the bottom of the impurity removal barrel, and a lower opening communicating with the interior of the bottom cover is opened at the bottom of the impurity removal barrel above the bottom cover.

[0010] By adopting the above technical solution, the impurities scraped off by the scraper can be placed in the bottom cover, and the scraped impurities can be collected and cleaned for a long time.

[0011] Optionally, a circular support groove is provided on the surface of the impurity removal cylinder at the bottom of the filter cartridge, and the bottom of the filter cartridge is positioned and supported by the support groove.

[0012] Optionally, a bottom surface of the cover plate above the filter cartridge is provided with abutment grooves, and the top of the filter cartridge is positioned by the abutment grooves.

[0013] Optionally, the bottom cover is detachably fixed to the bottom of the debris removal barrel by a second bolt, and a plurality of second bolts are provided.

[0014] By adopting the above technical solution, when a large amount of impurities are collected inside the bottom cover, the bottom cover can be removed for cleaning.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The technical solution of the present application is to arrange a rotatable rotating rod on the inner side of the filter cartridge, and to fix a scraper on the outer side thereof in contact with the inner surface of the filter cartridge. While filtering the natural gas through the impurity removal cartridge, the scraper can be regularly driven by the rotating rod to rotate and scrape the inner wall of the filter cartridge, thereby achieving the purpose of self-cleaning. It does not require manual cleaning and can achieve a longer service life.

[0017] 2. The technical solution of the present application is to provide a detachable structure by making the bottom cover and the upper cover plate both configured so that after a long period of use, the bottom cover can be removed to clean the collected impurities, or the cover plate can be removed to replace the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model anti-clogging self-cleaning natural gas pressure reducer;

[0020] Figure 2 This is a schematic diagram of the internal structure of the impurity removal cylinder of the anti-clogging self-cleaning natural gas pressure reducer of the utility model;

[0021] Figure 3 This is a schematic diagram of the surface structure of the filter cartridge of the anti-clogging self-cleaning natural gas pressure reducer of the utility model.

[0022] In the figure: 1. Pressure reducing valve; 11. Connecting pipe; 12. Air outlet pipe; 2. De-duster cylinder; 21. Support groove; 22. Upper opening; 23. Lower opening; 3. Filter cylinder; 31. Filter hole; 4. Cover plate; 41. First bolt; 42. Abutment groove; 43. Air inlet pipe; 44. Rotating rod; 441. Scraper; 45. Stepper motor; 5. Bottom cover; 51. Second bolt. DETAILED DESCRIPTION

[0023] See also Figure 1-3 The utility model provides a technical solution: an anti-clogging self-cleaning natural gas pressure reducer, comprising a pressure reducing valve 1 and a debris removal cylinder 2. The pressure reducing valve 1 has the same structure as the natural gas pressure reducing valve 1 in the prior art, and its inlet and outlet are respectively connected to a connecting pipe 11 and an air outlet pipe 12. Natural gas enters from the connecting pipe 11, and then is reduced in pressure by the pressure reducing valve 1 and discharged from the air outlet pipe 12 to the gas pipeline.

[0024] The end of the connecting pipe 11 is also connected to the side of the impurity removal barrel 2. A cover plate 4 is fixed on the top of the impurity removal barrel 2. The bottom of the cover plate 4 penetrates into the interior of the impurity removal barrel 2 through the upper opening 22 on the top of the impurity removal barrel 2. A filter cartridge 3 is locked between the bottom of the cover plate 4 and the lower part of the interior of the impurity removal barrel 2. Filter holes 31 are evenly arranged on the surface of the filter cartridge 3. The side of the cover plate 4 is connected to an air inlet pipe 43 connected to the interior of the filter cartridge 3. Natural gas enters the interior of the impurity removal barrel 2 from the air inlet pipe 43 and is placed on the inner side of the filter cartridge 3 and flows to the outside. It is filtered by the filter cartridge 3, so that the natural gas flows from the filter holes 31 to the outside and then flows out from the connecting pipe 11.

[0025] A circular branch groove 21 is provided on the surface of the impurity removal cylinder 2 at the bottom of the filter cartridge 3, and the bottom of the filter cartridge 3 is positioned and supported by the branch groove 21. A supporting groove 42 is provided on the bottom surface of the cover plate 4 above the filter cartridge 3, and the top of the filter cartridge 3 is positioned by the supporting groove 42. The cover plate 4 is detachably installed on the top of the impurity removal cylinder 2 by a first bolt 41. There are multiple first bolts 41, so when needed, the first bolt 41 can be unscrewed to remove the cover plate 4, and the filter cartridge 3 can be taken out and replaced.

[0026] A rotating rod 44 is vertically rotatably installed at the bottom of the cover plate 4, and the rotating rod 44 is connected to the stepper motor 45 installed on the upper surface of the cover plate 4. A scraper 441 is fixed to the side of the rotating rod 44, which is in contact with the inner surface of the filter cartridge 3. The inner surface of the filter cartridge 3 is a smooth surface. When impurities stick to the inner surface of the filter cartridge 3 after a period of use, the stepper motor 45 can be started to drive the rotating rod 44 and the scraper 441 to rotate, and the impurities are scraped off and cleaned to avoid clogging of the filter hole 31, without the need for frequent manual cleaning.

[0027] A bottom cover 5 is fixed to the bottom of the impurity removal barrel 2. A lower opening 23 communicating with the interior of the bottom cover 5 is provided at the bottom of the impurity removal barrel 2 above the bottom cover 5. The inner circle of the lower opening 23 is flush with the inner circle of the filter barrel 3, so that the impurities scraped off by the scraper 441 can fall into the bottom cover 5 through the lower opening 23 and be collected. The collected impurities are relatively large, so the scraper 441 can scrape more impurities and collect them in the bottom cover 5, which can be used for a longer time.

[0028] The bottom cover 5 is detachably fixed to the bottom of the impurity removal barrel 2 by a second bolt 51. There are multiple second bolts 51, so that the bottom cover 5 can also be removed. When a large amount of impurities are collected in the bottom cover 5, the second bolt 51 can be unscrewed to remove the bottom cover 5, which is convenient for cleaning the impurities collected therein.

[0029] When in use, the stepper motor 45 is connected to the controller, the upper air inlet pipe 43 is connected to the air supply pipe, and the air outlet pipe 12 is connected to the air use pipe. During normal operation, natural gas enters the impurity removal cylinder 2 from the air inlet pipe 43, flows outward through the impurity removal cylinder 2, and is filtered by the filter cartridge 3 so that the natural gas flows from the filter hole 31 to the outside of the filter cartridge 3, and then enters the pressure reducing valve 1 from the connecting pipe 11. The natural gas is decompressed in the pressure reducing valve 1 and finally discharged from the air outlet pipe 12. After a period of use, the stepper motor 45 is started to drive the rotating rod 44 and the scraper 441 on its outer side to rotate. When the scraper 441 rotates, it acts on the smooth The impurities on the inner wall surface of the filter cartridge 3 are scraped off and finally fall into the bottom cover 5 below for collection, which can achieve the purpose of regular automatic cleaning of the inner surface of the filter cartridge 3. After the equipment has been used for a long time, the valve on the natural gas pipeline can be disconnected, and then the second bolt 51 can be unscrewed to remove the bottom cover 5, and the impurities collected inside it can be cleaned. After the bottom cover 5 is installed and reset again, the valve can be opened for continued use. When the natural gas pipeline valve is closed, the first bolt 41 can be unscrewed to remove the cover plate 4. The filter cartridge 3 can be taken out and replaced when necessary, and the new filter cartridge 3 is placed between the support groove 21 and the abutment groove 42 at the bottom of the cover plate 4 and locked.

Claims

1. A self-cleaning natural gas pressure reducer with an anti-clogging function, comprising a pressure reducing valve (1) and a degassing cylinder (2), characterized in that: The inlet and outlet of the pressure reducing valve (1) are respectively connected to a connecting pipe (11) and an air outlet pipe (12), and the end of the connecting pipe (11) is also communicated with the inside of the side of the impurity removal cylinder (2); A cover plate (4) is fixed above the impurity removal cylinder (2), and the bottom of the cover plate (4) penetrates into the interior of the impurity removal cylinder (2) through the upper opening (22) at the top of the impurity removal cylinder (2). A filter cylinder (3) is locked between the bottom of the cover plate (4) and the lower part of the interior of the impurity removal cylinder (2). The surface of the filter cylinder (3) is evenly provided with filter holes (31), and the inner surface of the filter cylinder (3) is a smooth surface. The side of the cover plate (4) is connected to an air inlet pipe (43) that is in communication with the interior of the filter cylinder (3); A rotating rod (44) is vertically rotatably mounted on the bottom of the cover plate (4), the rotating rod (44) being transmission-connected to a stepping motor (45) mounted on the upper surface of the cover plate (4), and a scraper (441) contacting the inner surface of the filter cartridge (3) is fixed on the side of the rotating rod (44).

2. The anti-clogging self-cleaning natural gas pressure reducer according to claim 1, characterized in that: The cover plate (4) is detachably mounted above the impurity removal barrel (2) via a first bolt (41), and a plurality of first bolts (41) are provided.

3. The anti-clogging self-cleaning natural gas pressure reducer according to claim 1, characterized in that: A bottom cover (5) is fixed to the bottom of the impurity removal barrel (2), and a lower opening (23) communicating with the interior of the bottom cover (5) is opened at the bottom of the impurity removal barrel (2) above the bottom cover (5).

4. The anti-clogging self-cleaning natural gas pressure reducer according to claim 1, characterized in that: A circular support groove (21) is provided on the surface of the impurity removal cylinder (2) at the bottom of the filter cylinder (3), and the bottom of the filter cylinder (3) is positioned and supported by the support groove (21).

5. The anti-clogging self-cleaning natural gas pressure reducer according to claim 1, characterized in that: A supporting groove (42) is provided on the bottom surface of the cover plate (4) above the filter cartridge (3), and the top of the filter cartridge (3) is positioned by the supporting groove (42).

6. The anti-clogging self-cleaning natural gas pressure reducer according to claim 3, characterized in that: The bottom cover (5) is detachably fixed to the bottom of the impurity removal barrel (2) via a second bolt (51), and a plurality of second bolts (51) are provided.

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