Pipeline explosion-proof reinforcing structure for chemical safety production

Abstract

The utility model relates to the technical field of chemical production, in particular to a pipeline anti-explosion reinforcing structure for chemical safety production, which comprises two pipelines, a connector is mounted between the two pipelines, two sides of the connector are respectively and fixedly connected with a connecting pipe, and the two connecting pipes are respectively inserted into the pipelines. Compared with the prior art, the sealing device has the advantages that the sealing ring fixedly connected with the spring is arranged, the sealing ring can be attached to the interior of the first sealing groove all the time under the elastic effect of the spring, so that a gap between the connector and a pipeline is sealed, the situation that the sealing ring is aged and cannot be attached to the first sealing groove after being used for a long time is avoided, and the service life of the connector is prolonged. The protective covers are arranged outside the connector and the flange, on one hand, the connector and the flange can be protected, connection looseness caused by direct collision and other situations is avoided, on the other hand, connection of the connector and the flange can be enhanced, and under the limitation of the two protective covers, the connector and the flange are not prone to disengagement and are more stable.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and in particular to an explosion-proof reinforced structure for pipelines used in chemical safety production. Background Technology

[0002] Chemical pipelines, also known as steel-plastic composite chemical pipelines, are a new type of pipe material. They consist of a welded steel pipe as the middle layer, coated internally and externally with heavy-duty anti-corrosion epoxy resin plastic, and bonded together using a special hot melt adhesive through extrusion molding. The main material of steel-plastic composite chemical pipes is ultra-high molecular weight polyethylene (UHMWPE), a thermoplastic engineering plastic with an average molecular weight greater than 2 million, polymerized from ethylene and butadiene monomers under the action of a catalyst.

[0003] Currently, in actual use, chemical pipelines carry flammable and explosive chemical raw materials. If a leak occurs at the pipeline connection, these leaked chemical raw materials may cause a fire or even an explosion if they come into contact with an open flame. However, the existing chemical pipeline connections are only made by flanges and bolts, which are not tight enough and do not have good fire and explosion protection performance.

[0004] To address this issue, this utility model proposes an explosion-proof reinforced structure for pipelines used in chemical safety production. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to propose an explosion-proof reinforced structure for pipelines used in chemical safety production, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, one embodiment of this utility model provides an explosion-proof reinforced structure for pipelines used in chemical safety production, comprising two pipelines, a connector installed between the two pipelines, a connecting pipe fixedly connected to each side of the connector, the two connecting pipes being inserted into the interior of the pipelines, a sealing ring being provided between the connector and the two pipelines, and two protective covers being installed on the exterior of the pipelines and the connector.

[0008] Preferably, one side of the pipe is fixedly connected to a flange, a plurality of first fixing holes are provided around the flange, and a first sealing groove is provided on one side of the pipe.

[0009] Preferably, in any of the above embodiments, the outer diameter of the connecting pipe is adapted to the inner diameter of the pipe, and the outer surface of the connecting pipe is inserted into the inner surface of the pipe.

[0010] Preferably, in any of the above solutions, a second sealing groove is provided on each of the two sides of the connector, and a plurality of springs are fixedly connected inside the second sealing groove, and the plurality of springs are arranged in a circumferential array.

[0011] Preferably, one side of one of the aforementioned springs is fixedly connected to one side of the sealing ring, and the sealing ring is snapped into the interior of the first sealing groove and the second sealing groove.

[0012] Preferably, in any of the above solutions, the connector is provided with a plurality of second fixing holes around its perimeter, the positions of the second fixing holes corresponding to the positions of the first fixing holes.

[0013] Preferably, in any of the above embodiments, the internal shape of the protective cover is adapted to the size of the connector and flange, and the two protective covers are fastened to the outer surfaces of the connector and flange.

[0014] Preferably, in any of the above solutions, a plurality of third fixing holes are provided on both sides of the two protective covers, and the positions of the third fixing holes correspond to those of the first fixing holes and the second fixing holes.

[0015] Preferably, in any of the above solutions, a first fixing bolt is inserted into the first fixing hole, the second fixing hole, and the third fixing hole, and the connector, flange, and protective cover are fixedly connected by the first fixing bolt.

[0016] Preferably, in any of the above embodiments, two fourth fixing holes are respectively opened on both sides of the protective cover, and a second fixing bolt is inserted into the inside of the fourth fixing hole, and the two protective covers are fixedly connected by the second fixing bolt.

[0017] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0018] By setting a sealing ring that is fixedly connected to the spring, the sealing ring will always fit against the inside of the first sealing groove under the elastic action of the spring, thereby sealing the gap between the connector and the pipe. This avoids the situation where the sealing ring ages and can no longer fit against the first sealing groove after long-term use. By setting a protective cover on the outside of the connector and flange, firstly, it can protect the connector and flange from direct impact and other situations that may cause the connection to loosen. Secondly, it can strengthen the connection between the two. Under the restriction of the two protective covers, the two are less likely to separate and are more stable.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of the connector according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the pipe structure according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the protective cover according to an embodiment of the present utility model.

[0025] In the diagram: 1-pipe, 101-flange, 102-first fixing hole, 103-first sealing groove, 2-connector, 201-second sealing groove, 202-spring, 203-second fixing hole, 3-connecting pipe, 4-sealing ring, 5-protective cover, 501-third fixing hole, 6-first fixing bolt, 7-second fixing bolt. Detailed Implementation

[0026] like Figures 1 to 4 As shown, an explosion-proof reinforced structure for pipelines used in chemical safety production includes two pipelines 1, a connector 2 installed between the two pipelines 1, a connecting pipe 3 fixedly connected to each side of the connector 2, the two connecting pipes 3 being inserted into the inside of the pipelines 1, a sealing ring 4 being provided between the connector 2 and the two pipelines 1, and two protective covers 5 being installed on the outside of the pipelines 1 and the connector 2. The sealing ring 4 is made of corrosion-resistant and elastic rubber material.

[0027] A flange 101 is fixedly connected to one side of the pipe 1. Several first fixing holes 102 are opened around the flange 101. A first sealing groove 103 is opened on one side of the pipe 1.

[0028] The outer diameter of the connecting pipe 3 is matched with the inner diameter of the pipe 1. The outer surface of the connecting pipe 3 is inserted into the inner surface of the pipe 1. By setting the connecting pipe 3, the connection between the connector 2 and the pipe 1 can be strengthened, the risk of leakage can be reduced, and the two pipes 1 can be kept coaxial to avoid misalignment.

[0029] A second sealing groove 201 is provided on each side of the connector 2. Several springs 202 are fixedly connected inside the second sealing groove 201, and the springs 202 are arranged in a circular array.

[0030] Several springs 202 are fixedly connected to one side of a sealing ring 4. The sealing ring 4 is snapped into the inside of the first sealing groove 103 and the second sealing groove 201. By setting the sealing ring 4 fixedly connected to the spring 202, under the elastic action of the spring 202, the sealing ring 4 will always fit against the inside of the first sealing groove 103, thereby sealing the gap between the connector 2 and the pipe 1 and avoiding the situation where the sealing ring 4 will age and fail to fit against the first sealing groove 103 after long-term use.

[0031] The connector 2 has several second fixing holes 203 around its perimeter, and the positions of the second fixing holes 203 correspond to those of the first fixing holes 102.

[0032] The internal shape of the protective cover 5 is adapted to the size of the connector 2 and the flange 101. The two protective covers 5 are fastened to the outer surfaces of the connector 2 and the flange 101. The two protective covers 5 are just fastened to the outside of the connector 2 and the flange 101, thus limiting and protecting them.

[0033] Several third fixing holes 501 are provided on both sides of the two protective covers 5. The positions of the third fixing holes 501 correspond to the positions of the first fixing holes 102 and the second fixing holes 203.

[0034] First fixing bolts 6 are inserted into the first fixing hole 102, the second fixing hole 203 and the third fixing hole 501. The connector 2, the flange 101 and the protective cover 5 are fixedly connected by the first fixing bolts 6. By setting the protective cover 5 on the outside of the connector 2 and the flange 101, firstly, it can protect the connector 2 and the flange 101 from direct impact and other situations that may cause the connection to loosen. Secondly, it can strengthen the connection between the two. Under the restriction of the two protective covers 5, the two are less likely to separate and are more stable.

[0035] Two fourth fixing holes are opened on both sides of the protective cover 5. The second fixing bolt 7 is inserted into the inside of the fourth fixing hole. The two protective covers 5 are fixedly connected by the second fixing bolt 7. The second fixing bolt 7 further connects and fixes the two protective covers 5, which can enhance the stability of the connection between the two and make it less likely to loosen.

[0036] Compared with the prior art, the present invention has the following advantages:

[0037] By setting a sealing ring 4 fixedly connected to the spring 202, under the elastic action of the spring 202, the sealing ring 4 will always fit against the inside of the first sealing groove 103, thereby sealing the gap between the connector 2 and the pipe 1. This avoids the situation where the sealing ring 4 will age and fail to fit against the first sealing groove 103 after long-term use. By setting a protective cover 5 on the outside of the connector 2 and the flange 101, firstly, it can protect the connector 2 and the flange 101 from direct impact and other situations that may cause the connection to loosen. Secondly, it can strengthen the connection between the two. Under the restriction of the two protective covers 5, the two are less likely to separate and are more stable.

Claims

1. A reinforced explosion-proof structure for pipelines used in chemical safety production, characterized in that: It includes two pipes (1), a connector (2) is installed between the two pipes (1), a connecting pipe (3) is fixedly connected to each side of the connector (2), the two connecting pipes (3) are respectively inserted into the inside of the pipes (1), a sealing ring (4) is provided between the connector (2) and the two pipes (1), and two protective covers (5) are installed on the outside of the pipes (1) and the connector (2).

2. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 1, characterized in that: A flange (101) is fixedly connected to one side of the pipe (1), and a plurality of first fixing holes (102) are provided around the flange (101). A first sealing groove (103) is provided on one side of the pipe (1).

3. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 2, characterized in that: The outer diameter of the connecting pipe (3) is adapted to the inner diameter of the pipe (1), and the outer surface of the connecting pipe (3) is inserted into the inner surface of the pipe (1).

4. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 3, characterized in that: The connector (2) has a second sealing groove (201) on each side. Several springs (202) are fixedly connected inside the second sealing groove (201) and the springs (202) are arranged in a circumferential array.

5. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 4, characterized in that: One side of several of the springs (202) is fixedly connected to one side of the sealing ring (4), and the sealing ring (4) is snapped into the inside of the first sealing groove (103) and the second sealing groove (201).

6. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 5, characterized in that: The connector (2) has several second fixing holes (203) around its perimeter, and the positions of the second fixing holes (203) correspond to those of the first fixing holes (102).

7. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 6, characterized in that: The internal shape of the protective cover (5) is adapted to the size of the connector (2) and the flange (101), and the two protective covers (5) are fastened to the outer surfaces of the connector (2) and the flange (101).

8. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 7, characterized in that: Both protective covers (5) have several third fixing holes (501) on both sides, and the third fixing holes (501) correspond to the positions of the first fixing hole (102) and the second fixing hole (203).

9. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 8, characterized in that: First fixing bolts (6) are inserted into the first fixing hole (102), the second fixing hole (203) and the third fixing hole (501), and the connector (2), flange (101) and protective cover (5) are fixedly connected by the first fixing bolts (6).

10. The explosion-proof reinforced structure for pipelines used in chemical safety production according to claim 9, characterized in that: Two fourth fixing holes are respectively opened on both sides of the protective cover (5). A second fixing bolt (7) is inserted into the inside of the fourth fixing hole, and the two protective covers (5) are fixedly connected by the second fixing bolt (7).

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