Fuel gas vertical pipe device

Abstract

The utility model discloses a fuel gas vertical pipe device which comprises a stainless steel seamless steel pipe, galvanized steel pipes are connected to the two ends of the stainless steel seamless steel pipe, and an outer connector and a movable connector are connected to the ends of the galvanized steel pipes at the two ends respectively. The steel sleeve is arranged outside the stainless steel seamless steel pipe in a sleeving mode, a clamping type support is arranged in the steel sleeve, and the clamping type support abuts against the outer wall of the stainless steel seamless steel pipe; according to the utility model, the stainless steel seamless steel pipe is sleeved with the steel sleeve, and the steel sleeve is arranged at the hole replacement position of the original vertical pipe of the floor, so that the stainless steel seamless steel pipe which is newly replaced can be effectively fixed, the operation difficulty during connection of new pipe sections is reduced, and the connection stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipelines, in particular to a gas riser device. Background Art

[0002] Due to reasons such as aesthetic requirements of some buildings or limited pipeline installation conditions, some urban gas users install gas risers (usually made of galvanized steel pipes) indoors (i.e., inside the building). After years of operation of the gas transmission and distribution system, with the aging of the user's gas pipeline and the change of the indoor operating environment, especially at the floor penetration in the user's building, it is easy to accumulate water or debris, resulting in an increasing number of problems such as corrosion and damage of the steel gas pipeline at this part. At the same time, the situation of external force damage to the gas pipeline also occurs continuously.

[0003] For the replacement and renovation of the damaged gas riser at the floor penetration in the user's indoor area, when it is impossible to abolish the whole riser and reinstall a new riser on the outer wall of the user's building, the current method is: cut off the damaged part of the riser, replace it with a new galvanized steel pipe and reconnect it. Sometimes, for the convenience of construction, the original steel casing of the floor is not abolished, and only the damaged pipe section at the floor penetration is replaced. However, when directly replacing with a new galvanized steel pipe, it is not easy to fix, resulting in difficulty in connecting the new galvanized steel pipe to the original pipeline, increasing the operation difficulty and reducing the work efficiency. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a gas riser device, aiming to solve the existing technical problems.

[0005] To achieve the above purpose, the utility model provides a gas riser device, including:

[0006] A stainless steel seamless steel pipe, with galvanized steel pipes connected to both ends, and an external joint and a union joint are respectively connected to the ends of the two galvanized steel pipes;

[0007] A steel casing, sleeved outside the stainless steel seamless steel pipe, and a clip-type bracket is arranged inside the steel casing, and the clip-type bracket abuts against the outer wall of the stainless steel seamless steel pipe.

[0008] Further, the clip-type bracket includes a hoop sleeved on the outer wall of the stainless steel seamless steel pipe, and at least three support rods abutting against the inner wall of the steel casing are arranged on the periphery of the hoop.

[0009] Further, the galvanized steel pipe is connected to the union joint by a screw thread, and the gap between the union joint and the external thread of the galvanized steel pipe is filled with an inert filler.

[0010] Further, the galvanized steel pipe is connected to the external joint by a screw thread, and the gap between the external joint and the external thread of the galvanized steel pipe is filled with an inert filler.

[0011] Further, the gap between the clip-type bracket and the seamless stainless steel pipe is fixed with an adhesive.

[0012] Further, both of the union joints are wide-edge galvanized pipe fittings.

[0013] Further, the seamless stainless steel pipe is fixedly welded to the galvanized steel pipe, and the welded part is subjected to anti-corrosion treatment with an epoxy coating.

[0014] Further, both ends of the steel casing are provided with end caps, the end caps include two splicing end blocks, and a sponge layer is provided on the outer wall of the end blocks.

[0015] The beneficial effects of the present utility model are embodied in:

[0016] In the present utility model, by sleeving a steel casing outside the seamless stainless steel pipe and placing the steel casing at the replacement position of the original vertical pipe opening on the floor slab, the newly replaced seamless stainless steel pipe can be effectively fixed, the operation difficulty during the connection of the new pipe section can be reduced, and the connection stability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is the Figure 1 sectional view taken along line A-A in the present utility model.

[0019] Description of the reference numerals:

[0020] 1, seamless stainless steel pipe; 11, galvanized steel pipe; 12, external joint; 13, union joint; 2, steel casing; 21, clip-type bracket; 22, end cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 and 2 , the present utility model provides a gas riser device, including:

[0023] A stainless steel seamless steel pipe 1 is connected to galvanized steel pipes 11 at both ends, and an external joint 12 and a union joint 13 are respectively connected to the ends of the galvanized steel pipes 11 at both ends;

[0024] A steel casing 2 is sleeved outside the stainless steel seamless steel pipe 1, and a clip-type bracket 21 is arranged inside the steel casing 2, and the clip-type bracket 21 abuts against the outer wall of the stainless steel seamless steel pipe 1.

[0025] By sleeving the steel casing 2 outside the stainless steel seamless steel pipe 1 and placing the steel casing 2 at the replacement opening of the original vertical pipe of the floor slab, the newly replaced stainless steel seamless steel pipe 1 can be effectively fixed, the operation difficulty during the connection of the new pipe section can be reduced, and the connection stability can be improved.

[0026] The specific steps for assembling the gas riser device of this application are as follows:

[0027] Step 1: Fabricate the main pipeline. Use a stainless steel seamless steel pipe 1 (with a material of S30408) with a length of about 1 m as the main pipeline, and then use galvanized steel pipes 11 (with a material of Q235B) of the same material as the original indoor gas riser at the upper and lower ends of the main pipeline. The purpose of using galvanized steel pipes at the upper and lower ends of the main pipeline is to facilitate threaded connection with the original riser (most indoor risers for urban gas users are galvanized steel pipes), and the length of the galvanized steel pipes at both ends is not less than 100 mm; The stainless steel seamless steel pipe 1 and the galvanized steel pipe 11 are connected by welding, and the welded part of the stainless steel seamless steel pipe 1 and the galvanized steel pipe 11 is subjected to anti-corrosion treatment with epoxy paint. To keep the outside of the pipeline beautiful, a topcoat similar to the color of the pipeline can be applied on the anti-corrosion layer of the weld.

[0028] Step 2: Install the clip-type bracket 21 inside the steel casing 2, and the contact part between the steel casing 2 and the clip-type bracket 21 can be fixed with a small amount of adhesive (epoxy resin glue); The clip-type bracket 21 is mainly used to fix the main pipeline so that it is coaxial with the steel casing 2; The steel casing 2 is a stainless steel seamless steel pipe 1 with a specification two grades larger than the main pipeline, and the nominal size can refer to the following table; The clip-type bracket 21 can be made of polypropylene (PP plastic).

[0029]

[0030] Step 3: Install the main pipeline (stainless steel seamless steel pipe 1 and galvanized steel pipe 11) completed in Step 1 inside the steel casing 2 completed in Step 2, and fix it by the clip-type bracket 21 and keep it coaxial; A small amount of adhesive (epoxy resin glue) can be used to fix the gap between the clip-type bracket 21 and the main pipeline.

[0031] Step 4: Install the outer joint 12 and the union joint 13 at the upper and lower ends of the main pipeline completed in Step 3 respectively. Both the outer joint 12 and the union joint 13 are wide-edge galvanized pipe fittings. The galvanized steel pipe 11 at the lower end of the main pipeline is thread-connected to the outer joint 12. After connection, the gap between the outer joint 12 and the external thread of the galvanized steel pipe 11 is filled with inert filler. The galvanized steel pipe 11 at the upper end of the main pipeline is thread-connected to the union joint 13. After connection, the gap between the union joint 13 and the external thread of the galvanized steel pipe 11 is filled with inert filler.

[0032] After the assembly of all the above components is completed, a gas riser device is composed of a stainless steel seamless steel pipe 1, its steel casing 2, galvanized steel pipes 11 at the upper and lower ends, an outer joint 12 at the lower end and a union joint 13 at the upper end to form an integral whole.

[0033] ① In the present utility model, the stainless steel seamless steel pipe 1 and the steel casing 2 with high anti-corrosion and strength properties are used as the main pipes for the riser at the floor penetration, enhancing the corrosion resistance and strength properties of the indoor gas riser at the floor penetration part; ② The structure of the present utility model is delicate and reliable. A clip-type bracket 21 is adopted inside the steel casing 2 to keep the steel casing 2 coaxial with the main pipeline. Wide-edge galvanized pipe fittings are used at the upper and lower ends of the device for thread connection with the original riser, and the connection part is beautiful and has a good anti-corrosion effect; ③ The present utility model is convenient to operate and easy to implement, shortening the construction period, improving work efficiency, reducing costs, and at the same time can effectively improve the anti-corrosion quality and effect of the gas riser at the floor penetration in the user's room, thereby improving the overall service life and operation safety performance of the riser.

[0034] Specifically, the clip-type bracket 21 includes a hoop sleeved on the outer wall of the stainless steel seamless steel pipe 1, and at least three support rods are arranged on the periphery of the hoop and abutted against the inner wall of the steel casing 2.

[0035] Specifically, the galvanized steel pipe 11 is thread-connected to the union joint 13, and the gap between the union joint 13 and the external thread of the galvanized steel pipe 11 is filled with inert filler.

[0036] Specifically, the galvanized steel pipe 11 is thread-connected to the outer joint 12, and the gap between the outer joint 12 and the external thread of the galvanized steel pipe 11 is filled with inert filler.

[0037] Specifically, the gap between the clip-type bracket 21 and the stainless steel seamless steel pipe 1 is fixed with adhesive.

[0038] Specifically, both the union joint 13 and the outer joint 12 are wide-edge galvanized pipe fittings.

[0039] Specifically, the stainless steel seamless steel pipe 1 is welded and fixed to the galvanized steel pipe 11, and the welding part is treated with anti-corrosion by epoxy coating.

[0040] In one embodiment, end caps 22 are provided at both ends of the steel casing 2. The end cap 22 includes two splicing blocks, and a sponge layer is provided on the outer wall of the splicing block. With this arrangement in this embodiment, after the steel casing 2 is installed, the end cap 22 can be installed at the end of the steel casing 2 to block the port of the steel casing 2, avoiding the problem of foreign objects falling into the steel casing 2.

[0041] It should be noted that if there are directional indications such as up, down, left, right, front, back... in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the drawings. If the specific posture changes, the directional indications will also change accordingly.

[0042] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, "a plurality" means more than two. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gas riser device, characterized in that ,include: A stainless steel seamless steel pipe (1), with galvanized steel pipes (11) connected at both ends, and the ends of the galvanized steel pipes (11) are respectively connected to external joints (12) and flexible joints (13); A steel casing (2) is sleeved on the outside of the stainless steel seamless steel pipe (1), and a clamping bracket (21) is provided inside the steel casing (2), and the clamping bracket (21) abuts against the outer wall of the stainless steel seamless steel pipe (1).

2. A gas riser device according to claim 1, characterized in that: The clamp-type bracket comprises a circular hoop sleeved on the outer wall of the stainless steel seamless steel pipe (1), and at least three support rods are arranged on the periphery of the circular hoop and abut against the inner wall of the steel sleeve (2).

3. A gas riser device as claimed in claim 1, characterized in that: The galvanized steel pipe (11) is connected to the flexible joint (13) via a threaded connection, and the gap between the external threads of the flexible joint (13) and the galvanized steel pipe (11) is filled with an inert filler.

4. A gas riser device as claimed in claim 1, characterized in that: The galvanized steel pipe (11) is connected to the external joint (12) via a threaded connection, and the gap between the external threads of the external joint (12) and the galvanized steel pipe (11) is filled with an inert filler.

5. A gas riser device as claimed in claim 1, characterized in that: The gap between the clamp-type bracket (21) and the stainless steel seamless pipe (1) is fixed by adhesive.

6. A gas riser device as claimed in claim 1, characterized in that: The flexible joint (13) and the external joint (12) are both wide-edge galvanized pipe fittings.

7. A gas riser device as claimed in claim 1, characterized in that: The stainless steel seamless pipe (1) and the galvanized steel pipe (11) are welded and fixed, and the welding parts are treated with epoxy paint for corrosion protection.

8. A gas riser device as claimed in claim 1, characterized in that: Both ends of the steel casing (2) are provided with sealing covers (22), and the sealing covers (22) include two sealing blocks spliced ​​to each other, and the outer walls of the sealing blocks are provided with a sponge layer.

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