Novel prefabricated overhead composite thermal insulation pipe convenient to connect

Abstract

The utility model discloses a novel prefabricated overhead composite thermal insulation pipe convenient to connect, relates to the technical field of prefabricated overhead composite thermal insulation pipe structures, and aims to solve the problems that in the prior art, the connection of composite thermal insulation pipes is troublesome, the thermal insulation pipes cannot be quickly connected together, and the thermal insulation pipes usually need to be preset firstly, so that the cost is low. Therefore, the preset efficiency is influenced. The end faces of the two sides of the first heat preservation pipe and the second heat preservation pipe are each provided with a first sealing gasket. The connecting mechanism is arranged at the joint of the first heat preservation pipe and the second heat preservation pipe, a first fixing ring is arranged on the rear end face of the connecting mechanism, and a second fixing ring is arranged on the front end face of the connecting mechanism; the connecting pipe is arranged on the end face of one side of the first heat preservation pipe and the end face of one side of the second heat preservation pipe, connecting openings are formed in the end face of the other side of the first heat preservation pipe and the end face of the other side of the second heat preservation pipe, and connecting threads are arranged on the surface of the connecting pipe and the inner walls of the connecting openings.

Description

Technical Field

[0001] This utility model relates to the technical field of prefabricated overhead composite insulation pipe structure, specifically a novel prefabricated overhead composite insulation pipe that is easy to connect. Background Art

[0002] Thermal insulation pipe is short for heat-insulated pipeline. It is used for the transportation of liquids, gases and other media. It is used in thermal insulation projects for pipelines in petroleum, chemical, aerospace, military, district heating, central air conditioning, municipal and other industries. Thermal insulation pipe is suitable for transporting various media in the range of -50℃ to 150℃. It is widely used in district heating, cooling and hot oil transportation, as well as thermal insulation and cold preservation projects in industries such as greenhouses, cold storage, coal mines, petroleum, and chemical industries.

[0003] For example, the Chinese authorized patent with announcement number CN206206814U (A Prefabricated Overhead Composite Insulated Pipe): The composite insulated pipe includes, from the inside out, a core pipe, an inorganic insulation layer, an organic insulation layer, and an outer jacket. An air insulation layer is provided inside the inorganic insulation layer. The core pipe is a steel pipe. The inorganic insulation layer is a composite structure layer consisting of a soft insulation layer, a calcium silicate insulation layer, and an inorganic fiberglass layer arranged sequentially from the inside out. An aluminum foil glass cloth reflective layer is provided between all or part of the soft insulation layer, the calcium silicate insulation layer, and the inorganic fiberglass layer. The raw material cost of the insulated pipe is low. After being applied to thermal pipelines, the insulated pipe has good heat insulation and good heat preservation effect. During use, leakage is avoided, reducing the negative impact of the inside of the pipe on the outer pipe wall, thereby extending its service life.

[0004] However, the connection of the composite insulation pipes in the existing technology is relatively complicated, and the insulation pipes cannot be quickly connected together. In addition, the insulation pipes usually need to be pre-set, which affects the pre-setting efficiency. Therefore, it does not meet the existing needs. In this regard, we propose a new type of prefabricated overhead composite insulation pipe that is easy to connect. Utility Model Content

[0005] The purpose of this utility model is to provide a novel prefabricated overhead composite insulation pipe that is easy to connect, in order to solve the problems mentioned in the background art that the connection of composite insulation pipes in the prior art is relatively troublesome, the insulation pipes cannot be quickly connected together, and the insulation pipes usually need to be pre-set, which affects the pre-setting efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel prefabricated overhead composite insulation pipe that is easy to connect, comprising a first insulation pipe and a second insulation pipe, wherein a first sealing gasket is installed on both end faces of the first insulation pipe and the second insulation pipe.

[0007] Also includes:

[0008] A connecting mechanism is provided at the connection between the first insulation pipe and the second insulation pipe. A first fixing ring is provided on the rear end face of the connecting mechanism, and a second fixing ring is provided on the front end face of the connecting mechanism.

[0009] A connecting pipe is provided on one end face of the first insulation pipe and the second insulation pipe, and a connecting port is provided on the other end face of the first insulation pipe and the second insulation pipe.

[0010] Preferably, the surface of the connecting pipe and the inner wall of the connecting port are provided with connecting threads, and the connecting pipe and the connecting port are connected by connecting threads.

[0011] Preferably, a first sealing gasket is provided on both sides of the first insulation pipe and the second insulation pipe.

[0012] Preferably, the inner walls of both the first fixing ring and the second fixing ring are fitted with a second sealing gasket.

[0013] Preferably, both the upper and lower end faces of the first and second fixing rings are provided with fixing plates.

[0014] Preferably, fixing screws are installed on the fixing plate.

[0015] Preferably, the first and second insulation pipes are provided with internal flow channels, the surface of the flow channels is provided with an insulation layer, and the surface of the insulation layer is provided with a protective layer.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This utility model provides connecting pipes and connecting ports on both sides of the first and second insulation pipes, respectively. The connecting pipes and connecting ports are connected by connecting threads, which facilitates the direct connection and fixation of the two insulation pipes. After that, the first fixing ring and the second fixing ring are installed at the connection point of the first and second insulation pipes. Then, fixing screws are installed on the fixing plate for fixation, thereby forming a connection mechanism and ensuring the stability of the connection. This solves the problem that the connection of composite insulation pipes in the prior art is relatively troublesome, and the insulation pipes cannot be quickly connected together. In addition, the insulation pipes usually need to be pre-set, which affects the pre-setting efficiency.

[0018] 2. By setting first sealing gaskets on both sides of the first and second insulation pipes respectively, and setting second sealing gaskets on the inner walls of the first and second fixing rings, the sealing of the connection is ensured. An insulation layer is set on the surface of the flow pipe. The insulation layer is formed by injecting rigid polyurethane foam liquid into the cavity formed between the flow pipe and the protective layer in one go using a high-pressure foaming machine. The protective layer is made of polyethylene plastic pipe, which serves two purposes: first, to protect the polyurethane insulation layer from mechanical damage, and second, to prevent corrosion and water damage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the prefabricated overhead composite insulation pipe of this utility model;

[0020] Figure 2 This is a partially exploded structural diagram of the prefabricated overhead composite insulation pipe of this utility model;

[0021] Figure 3 This is an enlarged view of a partial connection mechanism of the prefabricated overhead composite insulation pipe of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of a partial internal structure of the prefabricated overhead composite insulation pipe of this utility model;

[0023] In the diagram: 1. First insulation pipe; 2. Second insulation pipe; 3. Connecting mechanism; 4. Connecting pipe; 5. Connecting thread; 6. First fixing ring; 7. Second fixing ring; 8. Fixing plate; 9. Fixing screw; 10. First sealing gasket; 11. Second sealing gasket; 12. Flow pipe; 13. Insulation layer; 14. Protective layer. DETAILED DESCRIPTION

[0024] 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 the embodiments.

[0025] See also Figure 1-4 One embodiment of this utility model is a novel prefabricated overhead composite insulation pipe that is easy to connect, including a first insulation pipe 1 and a second insulation pipe 2, and a first sealing gasket 10 is installed on both ends of the first insulation pipe 1 and the second insulation pipe 2.

[0026] Also includes:

[0027] The connecting mechanism 3 is located at the connection between the first insulation pipe 1 and the second insulation pipe 2. The rear end face of the connecting mechanism 3 is provided with a first fixing ring 6, and the front end face of the connecting mechanism 3 is provided with a second fixing ring 7.

[0028] A connecting pipe 4 is provided on one end face of the first insulation pipe 1 and the second insulation pipe 2, and a connecting port is provided on the other end face of the first insulation pipe 1 and the second insulation pipe 2. In use, since the connecting pipe 4 and the connecting port are respectively provided on both sides of the first insulation pipe 1 and the second insulation pipe 2, the connecting pipe 4 and the connecting port are threadedly fixed together by the connecting thread 5. This facilitates the direct connection and fixing of the two insulation pipes. After fixing, the first fixing ring 6 and the second fixing ring 7 are installed at the connection point of the first insulation pipe 1 and the second insulation pipe 2. Then, fixing screws 9 are installed on the fixing plate 8 for fixing, thus forming the connecting mechanism 3, ensuring the stability of the connection, and solving the problem that the connection of composite insulation pipes in the prior art is relatively troublesome and cannot... The insulation pipes are quickly connected together, but the insulation pipes usually need to be pre-set, which affects the pre-setting efficiency. In addition, the sealing of the connection is ensured by setting the first sealing gasket 10 on both sides of the first insulation pipe 1 and the second insulation pipe 2, and the second sealing gasket 11 on the inner wall of the first fixing ring 6 and the second fixing ring 7. The surface of the flow pipe 12 is covered with an insulation layer 13. The insulation layer 13 is formed by injecting rigid polyurethane foam liquid into the cavity formed between the flow pipe 12 and the protective layer 14 in one go using a high-pressure foaming machine. The protective layer 14 is a polyethylene plastic pipe, which serves two purposes: first, to protect the polyurethane insulation layer 13 from mechanical damage, and second, to prevent corrosion and water.

[0029] See also Figure 1-Figure 4 Both the surface of the connecting pipe 4 and the inner wall of the connecting port are provided with connecting threads 5, and the connecting pipe 4 and the connecting port are connected by connecting threads 5.

[0030] See also Figure 1-Figure 4 Both sides of the first insulation pipe 1 and the second insulation pipe 2 are provided with a first sealing gasket 10.

[0031] See also Figure 1-Figure 4The inner walls of the first fixing ring 6 and the second fixing ring 7 are both equipped with second sealing gaskets 11. The connecting pipe 4 and the connecting port are threadedly fixed together by the connecting thread 5, which facilitates the direct connection and fixing of the two insulation pipes. After fixing, the first fixing ring 6 and the second fixing ring 7 are installed at the connection between the first insulation pipe 1 and the second insulation pipe 2. Then, fixing screws 9 are installed on the fixing plate 8 for fixing, thus forming the connecting mechanism 3, ensuring the stability of the connection. This solves the problem that the connection of composite insulation pipes in the prior art is relatively troublesome, and the insulation pipes cannot be quickly connected together. Moreover, the insulation pipes usually need to be pre-set. This addresses the issue of its preset efficiency. Furthermore, by setting first sealing gaskets 10 on both sides of the first insulation pipe 1 and the second insulation pipe 2, and setting second sealing gaskets 11 on the inner walls of the first fixing ring 6 and the second fixing ring 7, the sealing of the connection is ensured. An insulation layer 13 is provided on the surface of the flow pipe 12. The insulation layer 13 is formed by injecting rigid polyurethane foam liquid into the cavity formed between the flow pipe 12 and the protective layer 14 in one go using a high-pressure foaming machine. The protective layer 14 is a polyethylene plastic pipe, which serves two purposes: first, to protect the polyurethane insulation layer 13 from mechanical damage; and second, to provide corrosion and waterproofing.

[0032] See also Figure 1-Figure 4 Fixing plates 8 are provided on the upper and lower end faces of the first fixing ring 6 and the second fixing ring 7.

[0033] See also Figure 1-Figure 4 Fixing screws 9 are installed on the fixing plate 8.

[0034] See also Figure 1-Figure 4 The first insulation pipe 1 and the second insulation pipe 2 are provided with a flow pipe 12 inside. The surface of the flow pipe 12 is provided with an insulation layer 13. The surface of the insulation layer 13 is provided with a protective layer 14. The connecting pipe 4 and the connecting port are fixedly connected by a connecting thread 5. After the two insulation pipes are directly connected and fixed, the first fixing ring 6 and the second fixing ring 7 are installed at the connection between the first insulation pipe 1 and the second insulation pipe 2.

[0035] Working principle: In use, connecting pipes 4 and connecting ports are respectively set on both sides of the first insulation pipe 1 and the second insulation pipe 2. The connecting pipes 4 and connecting ports are threadedly fixed together by connecting threads 5, which facilitates the direct connection and fixing of the two insulation pipes. After that, the first fixing ring 6 and the second fixing ring 7 are installed at the connection between the first insulation pipe 1 and the second insulation pipe 2. Then, fixing screws 9 are installed on the fixing plate 8 for fixing, thus forming the connecting mechanism 3, ensuring the stability of the connection. This solves the problem that the connection of composite insulation pipes in the prior art is relatively troublesome, and the insulation pipes cannot be quickly connected together. In addition, the insulation pipes usually need to be pre-prepared. The pre-set parameters can affect the preset efficiency. Furthermore, by setting first sealing gaskets 10 on both sides of the first insulation pipe 1 and the second insulation pipe 2 respectively, and setting second sealing gaskets 11 on the inner walls of the first fixing ring 6 and the second fixing ring 7, the sealing of the connection is ensured. The surface of the flow pipe 12 is provided with an insulation layer 13. The insulation layer 13 is formed by injecting rigid polyurethane foam liquid into the cavity formed between the flow pipe 12 and the protective layer 14 in one go using a high-pressure foaming machine. The protective layer 14 is a polyethylene plastic pipe, which serves two purposes: first, to protect the polyurethane insulation layer 13 from mechanical damage, and second, to prevent corrosion and water damage.

[0036] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A novel prefabricated overhead composite thermal insulation pipe that is easy to connect, comprising a first thermal insulation pipe (1) and a second thermal insulation pipe (2), wherein both end surfaces of the first thermal insulation pipe (1) and the second thermal insulation pipe (2) are provided with a first sealing gasket (10); Features: Also includes: A connecting mechanism (3) is arranged at the connection between the first thermal insulation pipe (1) and the second thermal insulation pipe (2), the rear end face of the connecting mechanism (3) being provided with a first fixing ring (6), and the front end face of the connecting mechanism (3) being provided with a second fixing ring (7); A connecting pipe (4) is arranged on one end surface of the first thermal insulation pipe (1) and the second thermal insulation pipe (2); and a connecting port is arranged on the other end surfaces of the first thermal insulation pipe (1) and the second thermal insulation pipe (2).

2. According to claim 1, a new type of prefabricated overhead composite thermal insulation pipe that is easy to connect, characterized in that: The surface of the connecting pipe (4) and the inner wall of the connecting port are both provided with connecting threads (5), and the connecting pipe (4) and the connecting port are threadedly connected via the connecting threads (5).

3. The novel prefabricated overhead composite thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: First sealing pads (10) are provided on both sides of the first thermal insulation pipe (1) and the second thermal insulation pipe (2).

4. The novel prefabricated overhead composite thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: Second sealing gaskets (11) are installed on the inner walls of the first fixing ring (6) and the second fixing ring (7).

5. The novel prefabricated overhead composite thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: The upper and lower end surfaces of the first fixing ring (6) and the second fixing ring (7) are both provided with fixing plates (8).

6. The novel prefabricated overhead composite thermal insulation pipe that is easy to connect according to claim 5 is characterized in that: The fixing plate (8) is provided with fixing screws (9).

7. The novel prefabricated overhead composite thermal insulation pipe that is easy to connect according to claim 1 is characterized in that: A circulation pipe (12) is arranged inside the first thermal insulation pipe (1) and the second thermal insulation pipe (2), a surface of the circulation pipe (12) is provided with a thermal insulation layer (13), and a surface of the thermal insulation layer (13) is provided with a protective layer (14).

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