Protective device for concealed gas pipeline

Abstract

The utility model provides a protective device for a concealed gas pipeline, which belongs to the technical field of gas pipelines, and comprises a welding seam between a first pipe section and a second pipe section, and a split type sealing component on the surface of the welding seam, the sealing component comprises two arc-shaped clamping blocks attached to the surface of the welding seam, an arc-shaped groove is arranged in each arc-shaped clamping block, and the arc-shaped grooves are arranged in the arc-shaped clamping blocks. Arc-shaped grooves are formed in the first pipe section and the second pipe section, a sealing strip is arranged in each arc-shaped groove, the sealing strips are attached to the surface of a weld joint, a socket groove is formed in the tail end in the first pipe section, an insertion ring is arranged at the head end in the second pipe section, and the socket groove is matched with the insertion ring in a sealing mode. The outer surface of the welding seam is sealed and protected through the sealing strips in the arc-shaped clamping blocks and the cushion blocks, and the interior of the gas pipeline is reinforced and protected through sealing fit of the socket grooves and the insertion rings, so that the inner surface and the outer surface of the welding seam are protected, and the service life of the gas pipeline is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of gas pipeline technology, specifically to a protective device for buried gas pipelines. Background Technology

[0002] With the development of urban gas services, a large number of residential, industrial, commercial, and public buildings are using gas, which has significantly promoted national economic development and improved people's living standards. Indoor gas pipeline equipment is a crucial facility for gas transmission and distribution. Due to the demands of some high-end residential communities and users, especially villa owners, who believe that exposed gas pipelines are unsightly, they refuse to allow them to run on exterior walls. According to the "Urban Gas Design Code," necessary protective measures must be taken for aluminum-plastic pipes; the "Urban Gas Indoor Engineering Construction and Quality Acceptance Code" requires that buried gas pipelines be equipped with effective metal protective devices along their entire length to prevent external impact, and the thickness of the metal protective devices must be greater than 1.2mm.

[0003] Currently, most household gas pipelines and their fittings in my country are installed underground. These underground gas pipelines are typically installed using pipe section welding, which creates weld seams. Because the pipelines are buried, the limited space increases the difficulty of welding, leading to some weld defects. Furthermore, during use, thermal expansion and contraction due to temperature changes, as well as the environmental factors of the underground location, make the gas pipeline surface more susceptible to corrosion. This results in corrosion in areas with poor weld quality, reducing the lifespan of the gas pipeline and increasing the risk of leaks. To address these issues, a protective device for underground gas pipelines is proposed. Utility Model Content

[0004] In view of this, the present invention provides a protective device for buried gas pipelines. The present invention uses a circle formed by two arc-shaped clamps on the sealing component to fix and seal the weld seam, and uses the sealing strip and gasket inside the arc-shaped clamps to seal and protect the outer surface of the weld seam. The socket and the plug ring are sealed together to strengthen and protect the inside of the gas pipeline, thereby protecting the inner and outer surfaces of the weld seam and improving the service life of the gas pipeline.

[0005] To solve the above-mentioned technical problems, this utility model provides a protective device for buried gas pipelines, including a weld between a first pipe section and a second pipe section, a sealing component with a split design on the weld surface, the sealing component including two arc-shaped clamps that fit against the weld surface, each arc-shaped clamp having an arc-shaped groove, each arc-shaped groove having a sealing strip, the sealing strip fitting against the weld surface, a socket being provided at the end of the first pipe section, and a plug ring being provided at the beginning of the second pipe section, the socket and the plug ring being sealed together.

[0006] A gasket is provided between each sealing strip and the inner wall of the arc-shaped clamp on the same side. The gasket is used to connect and fix the sealing strip to the arc-shaped clamp.

[0007] Each arc-shaped clamp has a sealing sticker at both the top and bottom ends. The sealing sticker is used to seal the end of the arc-shaped clamp on the same side, thereby preventing the ends of the sealing strip from being exposed. The two corresponding sealing stickers are glued together.

[0008] Each sealing patch has a positioning block on both the left and right sides. The positioning block is used to connect and fix the two arc-shaped clamping blocks, so that the two arc-shaped clamping blocks form a ring. Each positioning block is fixed to the arc-shaped clamping block on the same side. Each positioning block has a threaded hole symmetrically arranged in the middle. The threaded hole is used to install bolts. Every two concentric threaded holes are connected by bolts.

[0009] The outer surface of the sealing component is fitted with a protective sleeve, which is used to protect the outer wall of the gas pipeline, thereby reducing the corrosion of the gas pipeline in the buried environment. The outer surface of the protective sleeve is provided with a wear-resistant layer, which is used to improve the wear resistance of the protective sleeve.

[0010] A reinforcing sleeve is centrally located on the inner wall of the protective cylinder. This sleeve reinforces the protective sealing assembly, thereby strengthening the protection of the weld. The reinforcing sleeve fits snugly against the sealing assembly. Multiple positioning rods are located on both sides of the reinforcing sleeve. These positioning rods are used to fix the protective cylinder to the arc-shaped gasket. Each positioning rod has an arc-shaped gasket on the side closest to the sealing assembly. The arc-shaped gasket is used to assist in positioning the gas pipeline. It can reduce the vibration of the gas pipeline when it is ventilated, thereby reducing the impact of the gas hammer effect on the valves and connections on the gas pipeline. It also helps to support the protective cylinder, making it more pressure-bearing.

[0011] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0012] 1. The weld seam is fixed and sealed by the circle formed by the two arc-shaped clamps on the sealing component. The outer surface of the weld seam is sealed and protected by the sealing strip and gasket inside the arc-shaped clamps. The internal structure of the gas pipeline is reinforced and protected by the sealing fit between the socket and the plug ring, thereby protecting the inner and outer surfaces of the weld seam and improving the service life of the gas pipeline.

[0013] 2. The protective sleeve protects the outer wall of the gas pipeline, thereby reducing the corrosion of the gas pipeline in the buried environment. The wear-resistant layer can be coated on the outer surface of the protective sleeve to improve its wear resistance.

[0014] 3. The arc-shaped gasket is used to assist in the positioning of the gas pipeline, which can reduce the vibration of the gas pipeline when it is ventilated, thereby reducing the impact of the gas hammer effect on the valves and connections on the gas pipeline. It also helps to support the protective cylinder, making the protective cylinder more pressure-bearing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the assembly structure of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified view of part A;

[0018] Figure 4 This is a front sectional view of the present invention;

[0019] Figure 5 This utility model Figure 4 A magnified view of part B.

[0020] Explanation of reference numerals in the attached drawings: 100, first pipe section; 101, second pipe section; 102, weld; 103, insertion ring; 104, socket; 200, sealing assembly; 201, arc-shaped clamp; 202, arc-shaped groove; 203, sealing strip; 204, gasket; 205, sealing sticker; 300, positioning block; 301, threaded hole; 400, protective sleeve; 401, wear-resistant layer; 402, reinforcing sleeve; 403, positioning rod; 404, arc-shaped gasket. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-5As shown: This embodiment provides a protective device for buried gas pipelines, including a weld 102 between a first pipe section 100 and a second pipe section 101. The first pipe section 100 and the second pipe section 101 are two sections of pipe installed during buried gas pipeline installation. A sealing component 200 with a split design is provided on the surface of the weld 102. The sealing component 200 is sleeved on the surface of the weld 102. The sealing component 200 includes two arc-shaped clamps 201 that fit against the surface of the weld 102. The two arc-shaped clamps 201 facilitate the installation and separation of the sealing component 200. Each arc-shaped clamp 201 is provided with a... The arc-shaped groove 202 is used to place the sealing strip 203 and the pad. Each arc-shaped groove 202 is provided with a sealing strip 203. The sealing strip 203 is used to protect the surface of the weld 102, thereby reducing the probability of corrosion. The sealing strip 203 is in contact with the surface of the weld 102, so that the weld 102 is given the first layer of protection. The end of the first pipe section 100 is provided with a socket 104, and the beginning of the second pipe section 101 is provided with a plug ring 103. The socket 104 and the plug ring 103 are sealed together, so that the interior of the gas pipeline is reinforced and protected.

[0023] In use, the weld 102 is fixed and sealed by the circle formed by the two arc-shaped clamps 201 on the sealing assembly 200, and the outer surface of the weld 102 is sealed and protected by the sealing strip 203 and the pad inside the arc-shaped clamps 201. The socket 104 and the plug ring 103 are sealed and cooperated to strengthen and protect the inside of the gas pipeline, thereby protecting the inner and outer surfaces of the weld 102 and improving the service life of the gas pipeline.

[0024] This embodiment provides a protective device for buried gas pipelines.

[0025] like Figure 1 , 4 As shown in Figure 5: Each sealing strip 203 is provided with a gasket 204 between its inner wall and the inner wall of the arc-shaped clamp 201 on the same side. The gasket 204 is arc-shaped and fits the arc-shaped clamp 201. One side of the gasket 204 is bonded or heat-fused to the inner wall of the arc-shaped clamp 201, and the other side of the gasket 204 is bonded or heat-fused to the sealing strip 203. The gasket 204 is used to connect and fix the sealing strip 203 to the arc-shaped clamp 201. Each arc-shaped clamp 201 has a sealing sticker 205 at both ends. The sealing sticker 205 is bonded or heat-fused to the end face of the arc-shaped groove 202 and the sealing strip 203. The sealing sticker 205 is used to seal the end of the arc-shaped clamp 201 on the same side, thereby preventing the two ends of the sealing strip 203 from being exposed. The two corresponding sealing stickers 205 are bonded and fixed with glue.

[0026] Its effect is as follows: the gasket 204 is used to connect and fix the sealing strip 203 to the arc-shaped clamp 201, and the sealing sticker 205 is used to seal the end of the arc-shaped clamp 201 on the same side, thereby preventing the two ends of the sealing strip 203 from being exposed, so that the arc-shaped clamp 201, with the sealing strip 203, seals and protects the weld 102.

[0027] like Figure 1 , 3 As shown in Figures 4 and 5: Each sealing patch 205 has a positioning block 300 on both its left and right sides. The positioning block 300 is welded and fixed to the outer wall of the arc-shaped clamping block 201. The positioning block 300 is used to connect and fix the two arc-shaped clamping blocks 201, so that the two arc-shaped clamping blocks 201 form a ring. Each positioning block 300 is fixed to the arc-shaped clamping block 201 on the same side. Each positioning block 300 has a threaded hole 301 symmetrically arranged in the middle. The threaded hole 301 is used to install bolts. Every two concentric threaded holes 301 are connected by bolts, so that the positioning blocks 301 on the same side are connected, thereby making the ring formed by the two arc-shaped clamping blocks 201 more secure.

[0028] Its effect is as follows: the positioning block 300 is used to connect and fix the two arc-shaped clamping blocks 201, so that the two arc-shaped clamping blocks 201 form a ring. The two concentric threaded holes 301 are connected by bolts, so that the ring formed by the two arc-shaped clamping blocks 201 is more secure.

[0029] like Figure 2 , 4 As shown: A protective sleeve 400 is fitted on the outer surface of the sealing component 200. The size of the protective sleeve 400 is larger than the size of the sealing component 200 after splicing. The protective sleeve 400 is used to protect the outer wall of the gas pipeline, thereby reducing the corrosion of the gas pipeline by the buried environment. A wear-resistant layer 401 is provided on the outer surface of the protective sleeve 400. The wear-resistant layer 401 can be coated on the outer surface of the protective sleeve 400. The wear-resistant layer 401 is used to improve the wear resistance of the protective sleeve 400.

[0030] Its effects are as follows: the protective sleeve 400 is used to protect the outer wall of the gas pipeline, thereby reducing the corrosion of the gas pipeline in the buried environment. The wear-resistant layer 401 can be coated on the outer surface of the protective sleeve 400, and the wear-resistant layer 401 is used to improve the wear resistance of the protective sleeve 400.

[0031] like Figure 2 , 4As shown: A reinforcing sleeve 402 is centrally located on the inner wall of the protective cylinder 400. The reinforcing sleeve 402 can be made of corrosion-resistant colloidal material. The outer wall of the reinforcing sleeve 402 is heat-fused to the inner wall of the protective cylinder 400. The reinforcing sleeve 402 is used to reinforce the protective sealing component 200, thereby strengthening the protection of the weld 102. The reinforcing sleeve 402 is in close contact with the sealing component 200. Multiple positioning rods 403 are provided on both the left and right sides of the reinforcing sleeve 402. The positioning rods 403 are welded and fixed to the inner wall of the protective cylinder 400. The positioning rods 403 are used to fix the protective cylinder 400 to the arc-shaped gasket 404. Each positioning rod 403 has an arc-shaped gasket 404 on the side closest to the sealing component 200. The arc-shaped gasket 404 and the positioning rod 403 can be fixed by bolt connection or heat fusion connection.

[0032] Its effects are as follows: the arc-shaped gasket 404 is used to assist in the positioning of the gas pipeline, which can reduce the vibration of the gas pipeline when it is ventilated, thereby reducing the impact of the gas hammer effect on the valves and connections on the gas pipeline. It is also used to assist in supporting the protective cylinder 400 so that the protective cylinder 400 has a stronger pressure-bearing effect.

[0033] Working principle: The weld 102 is fixed and sealed by the circle formed by the two arc-shaped clamps 201 on the sealing component 200. The outer surface of the weld 102 is sealed and protected by the sealing strip 203 and the gasket inside the arc-shaped clamps 201. The internal structure of the gas pipeline is reinforced and protected by the sealing engagement of the socket 104 and the plug ring 103. The outer wall of the gas pipeline is protected by the protective cylinder 400, thereby reducing the corrosion of the gas pipeline in the buried environment. The wear-resistant layer 401 can be coated on the outer surface of the protective cylinder 400 to improve the wear resistance of the protective cylinder 400. The arc-shaped gasket 404 is used to assist in the positioning of the gas pipeline, which can reduce the vibration of the gas pipeline when it is ventilated, thereby reducing the impact of the gas hammer effect on the valves and connections on the gas pipeline. It also helps to support the protective cylinder 400 so that the protective cylinder 400 has a stronger pressure bearing effect.

[0034] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A protective device for buried gas pipelines, comprising a weld (102) between a first pipe section (100) and a second pipe section (101), characterized in that: The sealing assembly (200) with a split design on the surface of the weld (102) includes two arc-shaped clamps (201) that fit against the surface of the weld (102). Each arc-shaped clamp (201) is provided with an arc-shaped groove (202). Each arc-shaped groove (202) is provided with a sealing strip (203). The sealing strip (203) fits against the surface of the weld (102). The end of the first pipe section (100) is provided with a socket (104). The beginning of the second pipe section (101) is provided with a plug ring (103). The socket (104) and the plug ring (103) are sealed together.

2. The protective device for buried gas pipelines as described in claim 1, characterized in that: Each of the sealing strips (203) is provided with a gasket (204) between it and the inner wall of the arc-shaped clamp (201) on the same side.

3. The protective device for buried gas pipelines as described in claim 2, characterized in that: Each of the arc-shaped clamps (201) has a sealing sticker (205) at both its upper and lower ends.

4. The protective device for buried gas pipelines as described in claim 3, characterized in that: Each of the sealing stickers (205) has a positioning block (300) on both the left and right sides. Each positioning block (300) is fixed to the arc-shaped clamping block (201) on the same side. Each positioning block (300) has a threaded hole (301) symmetrically arranged in the middle. Every two concentric threaded holes (301) are connected by bolts.

5. A protective device for buried gas pipelines as described in claim 4, characterized in that: The outer surface of the sealing assembly (200) is fitted with a protective sleeve (400), and the outer surface of the protective sleeve (400) is provided with a wear-resistant layer (401).

6. A protective device for buried gas pipelines as described in claim 5, characterized in that: A reinforcing sleeve (402) is provided in the center of the inner wall of the protective sleeve (400). The reinforcing sleeve (402) is in contact with the sealing component (200). Multiple positioning rods (403) are provided on both the left and right sides of the reinforcing sleeve (402). Each positioning rod (403) has an arc-shaped gasket (404) on the side near the sealing component (200).

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