Prefabricated overhead composite thermal insulation pipe with high sealing performance

Abstract

The utility model discloses a high-sealing-performance prefabricated overhead composite thermal insulation pipe, relates to the technical field of thermal insulation pipes, and aims to solve the problem that in the prior art, in the long-time use process of a thermal insulation pipe, a sealing gasket between flange plates is prone to being exposed to the wind and the sun to be aged, and the sealing performance of the thermal insulation pipe is affected. A first flange plate is fixedly installed on the side, facing the second pipe body, of the first pipe body, a second flange plate is fixedly installed on the side, facing the first pipe body, of the second pipe body, a first circular groove is formed in one side of the first flange plate, and a second circular groove is formed in one side of the second flange plate. The first circular groove corresponds to the second circular groove in position, a sealing ring plate is arranged in the first circular groove, one side of the sealing ring plate extends into the second circular groove, sealing gaskets are symmetrically arranged on the two sides of the sealing ring plate respectively, and a convex ring is fixedly installed in the middle of the interior of the sealing ring plate. And inner sleeves are symmetrically arranged on the two sides of the convex ring correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a prefabricated overhead composite thermal insulation pipe with high sealing performance. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used for thermal insulation of pipelines in petroleum, chemical industry, aerospace, central heating, central air conditioning, municipal and other fields. In the installation line of the insulation pipe, the insulation pipe is often arranged overhead to facilitate the laying of the insulation pipe line. The insulation pipe is generally prefabricated in the factory and then transported to the construction site for assembly.

[0003] For example, the authorized patent with announcement number CN210687494U (a prefabricated overhead composite insulation pipe): comprising a core pipe, a lightweight insulation layer is fixedly connected to the outer side of the core pipe, a calcium carbonate insulation layer is fixedly connected to the outer side of the lightweight insulation layer, an air insulation layer is fixedly connected to the outer side of the calcium carbonate insulation layer, an organic insulation layer is fixedly connected to the outer side of the air insulation layer, an outer sleeve is fixedly connected to the outer side of the organic insulation layer, a buffer tube body is fixedly connected to the inner side of the outer sleeve at equal intervals, and adjacent buffer tube bodies are connected by through pipes;

[0004] Although the above-mentioned existing technology improves the impact buffering effect of other parts of the insulation pipe, the traditional connection of the insulation pipe is mostly through flanges. During the long-term use of the insulation pipe, the sealing gasket between the flanges is easily aged by wind and sun, affecting the sealing of the insulation pipe. Therefore, the market urgently needs to develop a highly sealed prefabricated overhead composite insulation pipe to help people solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a highly sealed prefabricated overhead composite insulation pipe to solve the problem raised in the above background technology that during the long-term use of the insulation pipe, the sealing gasket between the flanges is easily aged by wind and sun, thereby affecting the sealing of the insulation pipe.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a highly sealing prefabricated overhead composite insulation pipe, comprising a first tube body and a second tube body, a first flange fixedly installed on the side of the first tube body facing the second tube body, a second flange fixedly installed on the side of the second tube body facing the first tube body, a first circular groove is provided on one side of the first flange, a second circular groove is provided on one side of the second flange, the positions of the first circular groove and the second circular groove correspond to each other, a sealing ring plate is provided inside the first circular groove, one side of the sealing ring plate extends into the inside of the second circular groove, and sealing gaskets are symmetrically provided on both sides of the sealing ring plate.

[0007] Preferably, a convex ring is fixedly installed in the middle of the sealing ring plate, inner sleeves are symmetrically arranged on both sides of the convex ring, and ends of the two inner sleeves away from the convex ring extend into the interior of the first tube body and the second tube body respectively.

[0008] Preferably, one side of the outer side of the inner sleeve is provided with an external thread, the inner side of the sealing ring plate is provided with internal threads along both sides of the convex ring, and the inner sleeve and the sealing ring plate are connected via the external thread and the internal thread.

[0009] Preferably, the first tube body and the second tube body have the same internal structure, and the interior of the first tube body includes a pipeline matrix, an anti-corrosion layer, a thermal insulation layer, a protective layer and a sealing layer.

[0010] Preferably, the anti-corrosion layer is arranged on the inner side of the pipeline substrate, the thermal insulation layer is arranged on the outer side of the pipeline substrate, the protective layer is arranged on the outer side of the thermal insulation layer, and the protective layer is arranged on the outer side of the protective layer.

[0011] Preferably, the anti-corrosion layer is an epoxy resin coating, and the thermal insulation layer is made of polyurethane foam thermal insulation material.

[0012] Preferably, the protective layer is a sponge layer, and the protective layer is formed by winding a waterproof tape.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model arranges a sealing ring plate between the first flange and the second flange for connecting the first tube body and the second tube body, and arranges sealing gaskets on both sides of the sealing ring plate, so that the first flange and the second flange can be sealed and connected, and the gap between the first flange and the second flange can be shielded by the arranged sealing ring plate, thereby reducing the aging of the sealing gasket, increasing the sealing performance of the insulation pipe, and improving the stability of the insulation pipe in use.

[0015] 2. The utility model arranges inner sleeves at both ends of the inner side of the sealing ring plate, and the two inner sleeves extend into the first tube body and the second tube body respectively, so that the connection between the first flange and the second flange can be shielded and protected, reducing the impact of the water hammer effect on the connection between the first tube body and the second tube body, increasing the stability of the connection between the first tube body and the second tube body, ensuring the stability of the sealed connection between the first tube body and the second tube body, and enhancing the sealing of the insulation pipe connection.

[0016] 3. The utility model makes the insulation pipe a composite pipe by setting up an anti-corrosion layer, a thermal insulation layer, a protective layer and a sealing layer, and the anti-corrosion layer can improve the anti-corrosion ability inside the insulation pipe and increase the service life of the insulation pipe. The insulation layer can make the insulation pipe have better thermal insulation ability and reduce heat loss, and the protective layer can improve the insulation pipe's anti-impact ability and improve the safety of the insulation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a high-sealability prefabricated overhead composite thermal insulation pipe of the utility model;

[0018] Figure 2 It is a cross-sectional view of a high-sealability prefabricated overhead composite thermal insulation pipe of the utility model;

[0019] Figure 3 It is an enlarged schematic diagram of the A part of the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of the B portion of the utility model.

[0021] In the figure: 1. first pipe body; 101. pipe base; 102. anti-corrosion layer; 103. thermal insulation layer; 104. protective layer; 105. sealing layer; 2. first flange; 201. first circular groove; 3. second flange; 301. second circular groove; 4. second pipe body; 5. sealing ring plate; 6. sealing gasket; 7. convex ring; 8. inner sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a high-sealing prefabricated overhead composite insulation pipe, comprising a first tube body 1 and a second tube body 4, a first flange 2 is fixedly installed on the side of the first tube body 1 facing the second tube body 4, a second flange 3 is fixedly installed on the side of the second tube body 4 facing the first tube body 1, a first circular groove 201 is arranged on one side of the first flange 2, a second circular groove 301 is arranged on one side of the second flange 3, the first circular groove 201 and the second circular groove 301 are positioned correspondingly, a sealing ring plate 5 is arranged inside the first circular groove 201, one side of the sealing ring plate 5 extends into the inside of the second circular groove 301, and sealing gaskets 6 are symmetrically arranged on both sides of the sealing ring plate 5, thereby increasing the sealing between the first flange 2 and the second flange 3.

[0024] During use, when the first tube body 1 and the second tube body 4 are connected, the gap between the first flange 2 and the second flange 3 can be blocked by the provided sealing ring plate 5, thereby reducing the aging of the sealing gasket 6, increasing the sealing performance of the insulation pipe, and improving the stability of the insulation pipe in use.

[0025] Furthermore, a convex ring 7 is fixedly installed in the middle of the sealing ring plate 5, and inner sleeves 8 are symmetrically arranged on both sides of the convex ring 7. The ends of the two inner sleeves 8 away from the convex ring 7 extend into the first tube body 1 and the second tube body 4 respectively, and the outer sides of the two inner sleeves 8 are in contact with the inner sides of the first tube body 1 and the second tube body 4. By providing the inner sleeves 8 and extending the two inner sleeves 8 into the first tube body 1 and the second tube body 4 respectively, the connection between the first flange 2 and the second flange 3 can be shielded and protected, the impact of the water hammer effect on the connection between the first tube body 1 and the second tube body 4 is reduced, the stability of the connection between the first tube body 1 and the second tube body 4 is increased, the stability of the sealed connection between the first tube body 1 and the second tube body 4 is ensured, and the sealing of the insulation pipe connection is enhanced.

[0026] Furthermore, an external thread is provided on one side of the outer side of the inner sleeve 8, and internal threads are provided on both sides of the inner side of the sealing ring plate 5 along the convex ring 7. The inner sleeve 8 and the sealing ring plate 5 are connected by external threads and internal threads, so that the inner sleeve 8 is installed by means of threads, which improves the convenience of disassembly and assembly of the inner sleeve 8.

[0027] Furthermore, the first pipe body 1 and the second pipe body 4 have the same internal structure. The first pipe body 1 includes a pipe base 101, an anti-corrosion layer 102, a thermal insulation layer 103, a protective layer 104 and a sealing layer 105. The anti-corrosion layer 102 is arranged on the inner side of the pipe base 101, the thermal insulation layer 103 is arranged on the outer side of the pipe base 101, the protective layer 104 is arranged on the outer side of the thermal insulation layer 103, and the protective layer 104 is arranged on the outer side of the protective layer 104. The anti-corrosion layer 102 is an epoxy resin coating. The setting of the anti-corrosion layer 102 can improve the anti-corrosion ability of the inside of the insulation pipe and increase the service life of the insulation pipe. The insulation layer 103 is made of polyurethane foam insulation material. The setting of the insulation layer 103 can make the insulation pipe have better insulation ability and reduce heat loss. The protective layer 104 is a sponge layer, and the protective layer 104 is wrapped with a waterproof tape. The setting of the protective layer 104 can improve the insulation pipe's anti-impact ability, improve the insulation pipe's safety, and increase practicality.

[0028] Working principle: During use, when the first tube body 1 and the second tube body 4 are connected, the sealing ring plate 5 is provided to block the gap between the first flange 2 and the second flange 3, reduce the aging of the sealing gasket 6, and increase the sealing of the insulation pipe. By providing an inner sleeve 8, and the two inner sleeves 8 extend into the first tube body 1 and the second tube body 4 respectively, the connection between the first flange 2 and the second flange 3 can be shielded and protected, and the impact of the water hammer effect on the connection between the first tube body 1 and the second tube body 4 is reduced, the stability of the connection between the first tube body 1 and the second tube body 4 is increased, the stability of the sealed connection between the first tube body 1 and the second tube body 4 is ensured, and the sealing of the insulation pipe connection is enhanced. At the same time, during the use of the insulation pipe, the anti-corrosion layer 102 is provided to improve the anti-corrosion ability of the insulation pipe and increase the service life of the insulation pipe. The insulation layer 103 is provided to enable the insulation pipe to have better insulation ability and reduce heat loss. The protective layer 104 is provided to improve the anti-smashing ability of the insulation pipe and improve the safety of the insulation pipe.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-sealability prefabricated overhead composite thermal insulation pipe, comprising a first pipe body (1) and a second pipe body (4), characterized in that: A first flange (2) is fixedly mounted on the side of the first tube body (1) facing the second tube body (4), and a second flange (3) is fixedly mounted on the side of the second tube body (4) facing the first tube body (1). A first circular groove (201) is arranged on one side of the first flange (2), and a second circular groove (301) is arranged on one side of the second flange (3). The first circular groove (201) and the second circular groove (301) are positioned correspondingly. A sealing ring plate (5) is arranged inside the first circular groove (201), and one side of the sealing ring plate (5) extends into the interior of the second circular groove (301). Sealing pads (6) are symmetrically arranged on both sides of the sealing ring plate (5).

2. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 1, characterized in that: A convex ring (7) is fixedly installed in the middle of the sealing ring plate (5), and inner sleeves (8) are symmetrically arranged on both sides of the convex ring (7), and the ends of the two inner sleeves (8) away from the convex ring (7) extend into the interior of the first tube body (1) and the second tube body (4) respectively.

3. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 2, characterized in that: An external thread is provided on one side of the outer side of the inner sleeve (8), and an internal thread is provided on both sides of the inner side of the sealing ring plate (5) along the convex ring (7). The inner sleeve (8) and the sealing ring plate (5) are connected via the external thread and the internal thread.

4. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 3, characterized in that: The first tube body (1) and the second tube body (4) have the same internal structure, and the interior of the first tube body (1) comprises a pipeline base (101), an anti-corrosion layer (102), a thermal insulation layer (103), a protective layer (104) and a sealing layer (105).

5. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 4, characterized in that: The anti-corrosion layer (102) is arranged on the inner side of the pipeline substrate (101), the thermal insulation layer (103) is arranged on the outer side of the pipeline substrate (101), the protective layer (104) is arranged on the outer side of the thermal insulation layer (103), and the protective layer (104) is arranged on the outer side of the protective layer (104).

6. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 5, characterized in that: The anti-corrosion layer (102) is an epoxy resin coating, and the thermal insulation layer (103) is made of polyurethane foam thermal insulation material.

7. The high-sealability prefabricated overhead composite thermal insulation pipe according to claim 6, characterized in that: The protective layer (104) is a sponge layer, and the protective layer (104) is formed by winding a waterproof tape.

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