High-pressure hydrogen filter

Abstract

The utility model relates to a high-pressure hydrogen filter which comprises a cylinder assembly, a filter element and a quick-opening blind plate assembly, the cylinder assembly comprises a cylinder, a spherical seal head is fixed at the lower end of the cylinder in a sealed mode, and an air inlet pipe joint and an air outlet pipe joint are correspondingly fixed on the left side and the right side of the cylinder in a sealed mode. The horizontal part of the L-shaped adapter is coaxially, hermetically and fixedly connected with the air outlet pipe joint, the vertical part of the L-shaped adapter is coaxial with the cylinder body, an annular supporting plate is coaxially, hermetically and fixedly arranged at the upper end of the vertical part of the L-shaped adapter, a pull rod is fixed in the vertical part of the L-shaped adapter, the filter element is arranged on the supporting plate, and a pressing plate is arranged on the upper side of the filter element. The upper end of the pull rod penetrates through the pressing plate and is provided with a locking nut through threads, and the quick-opening blind plate assembly is arranged at the upper end of the cylinder. The device has the advantages of being simple in structure, low in cost, convenient to maintain, safe, stable and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a filter, specifically to a filter for high-pressure hydrogen. BACKGROUND

[0002] Under the background of human pursuit of sustainable development and clean energy, natural gas hydrogen blending technology gradually attracts widespread attention. This technology can reduce carbon emissions during combustion, improve energy utilization efficiency, and help solve the problem of large-scale and long-distance hydrogen transportation by blending hydrogen into natural gas. Natural gas hydrogen blending pipelines require filters. The existing filters are mainly designed for natural gas, and have the problems of small flow, easy blockage, and filter core being easily flattened by high-pressure gas flow, causing residual flow to the downstream pipeline and damaging related equipment, which cannot meet the filtering requirements of high-pressure hydrogen. SUMMARY

[0003] The utility model aims at providing a high-pressure hydrogen filter which has the advantages of simple structure, low cost, convenient maintenance, safety and stability, and strong practicality.

[0004] To solve the above problems in the prior art, the utility model provides a high-pressure hydrogen filter which comprises a cylinder assembly, a filter core and a quick-opening blind plate assembly. The cylinder assembly comprises a cylinder, the lower end of the cylinder is sealingly fixed with a spherical head, the left and right sides of the cylinder are sealingly fixed with an air inlet pipe joint and an air outlet pipe joint, an L-shaped adapter pipe is arranged in the cylinder, the horizontal part of the L-shaped adapter pipe is coaxially and sealingly fixedly connected with the air outlet pipe joint, the vertical part of the L-shaped adapter pipe is coaxial with the cylinder, a ring-shaped support plate is coaxially and sealingly fixed on the upper end of the vertical part of the L-shaped adapter pipe, a pull rod is fixed in the vertical part of the L-shaped adapter pipe, the filter core is arranged on the support plate, a pressing plate is arranged on the upper side of the filter core, the upper end of the pull rod penetrates through the pressing plate and is threadedly connected with a locking nut, and the quick-opening blind plate assembly is arranged on the upper end of the cylinder.

[0005] Further, the utility model provides a high-pressure hydrogen filter, wherein the quick-opening blind plate assembly comprises a high neck, a blind plate, a lock ring and a limiting sleeve, the high neck is coaxially and sealingly welded on the upper end of the cylinder, the inner wall of the high neck is provided with limiting grooves and limiting platforms which are distributed upward and downward, the blind plate is arranged on the limiting platform of the high neck, the lock ring is composed of four arc-shaped blocks and is arranged in the limiting grooves of the high neck, and the limiting sleeve is arranged in the inner hole of the lock ring.

[0006] Further, the utility model provides a high-pressure hydrogen filter, wherein a sealing groove is arranged on the peripheral wall of the blind plate, a sealing ring is arranged in the sealing groove and is extruded on the inner wall of the high neck, a protective cover is fixed on the upper end of the limiting sleeve, and the protective cover covers the top of the high neck.

[0007] Furthermore, this utility model provides a high-pressure hydrogen filter, wherein the bottom of the spherical end cap is provided with a drain pipe, and a limiting ring is provided on the support plate inside the filter element.

[0008] Furthermore, this utility model discloses a high-pressure hydrogen filter, wherein the spherical end cap, the inlet pipe joint, and the outlet pipe joint are respectively fixed to the cylinder by welding and sealing; the horizontal part of the L-shaped adapter pipe is fixed to the outlet pipe joint by welding and sealing; the support plate is fixed to the upper end of the vertical part of the L-shaped adapter pipe by welding and sealing; the pull rod is coaxially arranged with the vertical part of the L-shaped adapter pipe, and the lower end of the pull rod is fixed to the L-shaped adapter pipe by welding; the drain pipe and the limiting ring are respectively fixed to the spherical end cap and the support plate by welding.

[0009] Furthermore, in this utility model, a high-pressure hydrogen filter is provided, wherein the cylindrical assembly, quick-opening blind flange assembly, pressure plate, and locking nut are all made of 316 / 316L stainless steel.

[0010] Compared with the prior art, the high-pressure hydrogen filter of this utility model has the following advantages: This utility model sets up a cylindrical assembly, a filter element, and a quick-opening blind flange assembly. The cylindrical assembly is set in the cylindrical body, and a spherical end cap is sealed and fixed at the lower end of the cylindrical body. The inlet pipe joint and outlet pipe joint are correspondingly sealed and fixed on the left and right sides of the cylindrical body. An L-shaped adapter pipe is set in the cylindrical body. The horizontal part of the L-shaped adapter pipe is coaxially and sealed and fixedly connected to the outlet pipe joint. The vertical part of the L-shaped adapter pipe is coaxially and sealed and fixedly at the upper end of the vertical part of the L-shaped adapter pipe. A pull rod is fixed in the vertical part of the L-shaped adapter pipe. The filter element is placed on the support plate, and a pressure plate is set on the upper side of the filter element. The upper end of the pull rod passes through the pressure plate and a locking nut is installed by thread. The quick-opening blind flange assembly is set at the upper end of the cylindrical body. This results in a high-pressure hydrogen filter that is simple in structure, low in cost, easy to maintain, safe and stable, and highly practical. In practical applications, the filter is connected in series in a high-pressure hydrogen pipeline through an inlet pipe connector and an outlet pipe connector. When high-pressure hydrogen flows through the filter element, impurities are filtered out. This invention features a cylindrical assembly with inlet and outlet pipe connectors on both sides. An L-shaped adapter pipe and support plate are installed inside the cylinder, and the filter element is mounted on the support plate. The structural feature of the filter element being positioned above the inlet pipe connector prevents direct impact of high-pressure hydrogen on the filter element, reducing the risk of the filter element being crushed and damaged, and improving safety and reliability. A quick-opening blind flange assembly at the top of the cylinder enhances the ease of filter element installation and removal. By using filter elements of different specifications, the flow rate can be adjusted to meet high-flow filtration requirements.

[0011] The high-pressure hydrogen filter of this utility model will be further described in detail below with reference to the embodiments shown in the accompanying drawings. Attached Figure Description

[0012] Figure 1 It is a sectional structure schematic view of the high-pressure hydrogen filter. DETAILED DESCRIPTION

[0013] First of all, the upper, lower, left, right, front, back and other directional words in the utility model are only described according to the drawings for the convenience of understanding, and not to limit the technical scheme of the utility model and the scope of protection.

[0014] As Figure 1 The specific embodiment of the utility model discloses a high-pressure hydrogen filter, including cylinder assembly 1, filter core 2 and quick opening blind plate assembly 3. Make cylinder assembly 1 set up cylinder 11, seal and fix spherical head 12 at the lower end of cylinder 11, seal and fix air inlet pipe joint 13 and air outlet pipe joint 14 on the left and right sides of cylinder 11 correspondingly, set up L-shaped adapter pipe 15 in cylinder 11, wherein, the horizontal part of L-shaped adapter pipe 15 is coaxially sealed and fixedly connected with air outlet pipe joint 14, the vertical part of L-shaped adapter pipe 15 is coaxial with cylinder 11, the upper end of the vertical part of L-shaped adapter pipe 15 is coaxially sealed and fixed with annular support plate 16, support plate 16 is located on the upper side of air inlet pipe joint 13 and air outlet pipe joint 14, and pull rod 17 is fixed in the vertical part of L-shaped adapter pipe 15. Place filter core 2 on support plate 16, set up pressing plate 4 on the upper side of filter core 2, make the upper end of pull rod 17 pass through pressing plate 4 and be fixed by screwing locking nut 5, and set up quick opening blind plate assembly 3 on the upper end of cylinder 11.

[0015] Through the above setting, a high-pressure hydrogen filter with simple structure, low cost, convenient maintenance, safety and stability and strong practicability is formed. In actual application, the filter is connected in series in the high-pressure hydrogen pipeline through air inlet pipe joint 13 and air outlet pipe joint 14, and the impurities in the high-pressure hydrogen can be filtered out when the high-pressure hydrogen flows through filter core 2. The utility model discloses a cylinder assembly 1 is arranged, air inlet pipe joint 13 and air outlet pipe joint 14 are arranged on the two sides of cylinder 11 correspondingly, L-shaped adapter pipe 15 and support plate 16 are arranged in cylinder 11, filter core 2 is installed on support plate 16, the structure characteristics that filter core 2 is located on the upper side of air inlet pipe joint 13 can avoid that high-pressure hydrogen directly impacts filter core 2, the risk that filter core 2 is crushed and damaged is reduced, and safety and reliability are improved. The quick opening blind plate assembly 3 is arranged on the upper end of cylinder 11, the quick opening blind plate assembly 3 can be quickly opened, the convenience of disassembling and assembling filter core 2 is improved, different specifications of filter core 2 are used to realize the purpose of adjusting flow, and the filtering demand of large flow can be met. It should be noted that, in actual application, to prevent hydrogen embrittlement, the cylinder assembly 1, the quick opening blind plate assembly 3, the pressing plate 4 and the locking nut 5 are usually made of 316 / 316L stainless steel.

[0016] As a specific embodiment, the quick-opening blind plate assembly 3 adopts the following structure: a high neck 31 is coaxially and sealingly welded on the upper end of the cylinder body 11, a limiting groove and a limiting platform are arranged on the inner wall of the high neck 31 in an up-down distribution, the blind plate 32 is arranged on the limiting platform of the high neck 31, the lock ring 33 is arranged in the limiting groove of the high neck 31 in a form composed of four arc-shaped blocks, and the limiting sleeve 34 is arranged in the inner hole of the lock ring 33. The quick-opening blind plate assembly 3 has the characteristics of simple structure, easy preparation and convenient operation. After the limiting sleeve 34 is taken out of the lock ring 33, the four arc-shaped blocks can be taken out of the limiting groove of the high neck 31, and then the blind plate 32 can be taken out of the high neck 31 to achieve the opening purpose. The closing operation of the blind plate is opposite to the above process, which will not be described here. In actual application, the sealing groove is arranged on the peripheral wall of the blind plate 32, and the sealing ring 35 is arranged in the sealing groove and extruded on the inner wall of the high neck 31, so as to improve the sealing reliability between the blind plate 32 and the high neck 31. Meanwhile, the protective cover 36 is fixed on the upper end of the limiting sleeve 34 and covers the top of the high neck 31, so as to improve the protection effect and safety.

[0017] As a specific embodiment, the utility model discloses the bottom of spherical head 12 is provided with blowdown pipe 18 to carry out blowdown when needing, and is provided with limiting ring 19 on the support plate 16 of filter core 2 inside to carry out installation positioning effect to filter core 2. It needs to be explained that normally blowdown pipe 18 is closed through plug, only when blowdown, can be opened through the removal plug. As a specific embodiment, the utility model makes the welding fixed mode of each component of cylinder assembly 1 is adopted to improve the integrity and stability of structure, specifically: spherical head 12, air inlet pipe joint 13 and air outlet pipe joint 14 are sealingly fixed on cylinder 11 through welding respectively, the horizontal part of L-shaped adapter pipe 15 is sealingly fixed on air outlet pipe joint 14 through welding, support plate 16 is sealingly fixed on the vertical part of L-shaped adapter pipe 15 through welding, pull rod 17 is coaxially arranged with the vertical part of L-shaped adapter pipe 15, the lower end of pull rod 17 is fixed on L-shaped adapter pipe 15 through welding, blowdown pipe 18 and limiting ring 19 are fixed on spherical head 12 and support plate 16 through welding respectively.

[0018] The above embodiments only describe the preferred embodiments of the utility model, and do not limit the protection scope of the utility model. Various modifications made by those skilled in the art according to the technical scheme of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A high pressure hydrogen gas filter characterized by, The utility model provides a filter element quick -open blind plate assembly, including cylinder component (1), filter core (2) and quick -open blind plate assembly (3), cylinder component (1) includes cylinder (11), the lower end of cylinder (11) is sealed and fixed with spherical head (12), cylinder (11) left and right sides correspond sealed fixed with air inlet pipe joint (13) and air outlet pipe joint (14), be equipped with L type adapter pipe (15) in cylinder (11), the transverse portion of L type adapter pipe (15) is coaxially sealed fixed connection with air outlet pipe joint (14), the vertical portion of L type adapter pipe (15) is coaxial with cylinder (11), the vertical portion of L type adapter pipe (15) is sealed and fixed with annular support plate (16) on the upper end, pull rod (17) is fixed in the vertical portion of L type adapter pipe (15), filter core (2) is placed on support plate (16), and the upper side of filter core (2) is equipped with press plate (4), and pull rod (17) upper end passes through press plate (4) and is fixed with lock nut (5) through screw thread, and quick -open blind plate assembly (3) sets up on the upper end of cylinder (11).

2. A high pressure hydrogen filter according to claim 1, characterized in that The quick -open blind plate assembly (3) includes a high neck (31), a blind plate (32), a lock ring (33), and a limiting sleeve (34). The high neck (31) is coaxially sealed and welded on the upper end of the cylinder (11). The inner wall of the high neck (31) is provided with limiting grooves and limiting platforms distributed upward and downward. The blind plate (32) is placed on the limiting platform of the high neck (31). The lock ring (33) is composed of four arc-shaped blocks and is placed in the limiting grooves of the high neck (31). The limiting sleeve (34) is in the inner hole of the lock ring (33).

3. A high pressure hydrogen filter according to claim 2, characterized in that The peripheral wall of the blind plate (32) is provided with a sealing groove, and a sealing ring (35) is installed in the sealing groove and extruded on the inner wall of the high neck (31). The upper end of the limiting sleeve (34) is fixed with a protective cover (36), and the protective cover (36) covers the top of the high neck (31).

4. A high pressure hydrogen filter according to claim 3, wherein The bottom of the spherical head (12) is provided with a blowdown pipe (18). The limiting ring (19) is arranged on the support plate (16) inside the filter core (2).

5. A high pressure hydrogen filter according to claim 4, characterized in that The spherical head (12), the air inlet pipe joint (13), and the air outlet pipe joint (14) are respectively sealed and fixed on the cylinder (11) by welding. The transverse portion of the L type adapter pipe (15) is sealed and fixed on the air outlet pipe joint (14) by welding. The support plate (16) is sealed and fixed on the upper end of the vertical portion of the L type adapter pipe (15) by welding. The pull rod (17) is coaxially arranged with the vertical portion of the L type adapter pipe (15), and the lower end of the pull rod (17) is fixed on the L type adapter pipe (15) by welding. The blowdown pipe (18) and the limiting ring (19) are respectively fixed on the spherical head (12) and the support plate (16) by welding.

6. A high pressure hydrogen filter according to claim 5, characterized in that The cylinder component (1), the quick -open blind plate assembly (3), the press plate (4), and the lock nut (5) are all made of 316 / 316L stainless steel.

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