Anti-static tensile thermal insulation pipe fitting

Abstract

The utility model discloses an anti-static tensile heat preservation pipe fitting, and relates to the technical field of heat preservation pipe fittings, the anti-static tensile heat preservation pipe fitting comprises an inner pipe, the anti-static tensile heat preservation pipe fitting is further provided with a protection mechanism, the protection mechanism comprises an extension pipe and two connecting cylinders, a polyurethane foam layer has excellent heat preservation performance and certain strength, and the anti-static tensile heat preservation pipe fitting can be used for heat preservation. Heat loss can be effectively reduced, meanwhile, tensile support is provided for a pipe fitting to a certain degree, the polyurethane foam layer forms a compact structure after being cured and has good bonding force with the inner pipe and the high-density polyethylene layer, the high-density polyethylene layer has good toughness and tensile strength, the outer protection pipe can protect the heat preservation layer and the steel pipe, and the service life of the heat preservation layer and the steel pipe is prolonged. The high-density polyethylene layer and the polyurethane foam layer are arranged on the inner pipe and bear certain external tension, when the thermal insulation pipe is subjected to tension, the high-density polyethylene layer and the polyurethane foam layer can play a buffering role, the tension directly acting on the inner pipe is reduced, meanwhile, the tension can be more evenly distributed in the whole structure, and the tension resistance of the pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipe fittings, in particular to an anti-static and tensile-resistant thermal insulation pipe fitting. Background Art

[0002] Thermal insulation pipe fittings are a component that plays an important role in the pipeline system. They are made of a working steel pipe, an insulation layer and an outer protective pipe. They are mainly used to maintain the temperature of the medium when transporting liquids or gases and reduce heat loss. They have good thermal insulation performance, waterproof performance and corrosion resistance. They are widely used in centralized heating, petrochemical, refrigeration and other fields. Thermal insulation pipe fittings are easy to install, can effectively improve energy utilization efficiency and reduce operating costs. At the same time, they have reliable quality and long service life. They can adapt to various complex working environments and provide strong guarantees for the stable operation of the pipeline system. In actual applications, thermal insulation pipe fittings usually require the following technologies:

[0003] 1. Flange connection is often used for connecting pipes with larger diameters, which is convenient for installation and maintenance;

[0004] 2. Able to withstand certain internal pressure and external loads to ensure that the pipe fittings will not deform or rupture under normal use and possible pressure fluctuations;

[0005] 3. Use corrosion-resistant materials. Both the medium inside the pipe and the external environment may cause corrosion to the pipe fittings. Corrosion-resistant materials can effectively protect the insulation pipe fittings.

[0006] At present, manufacturers produce insulated pipe fittings, and there are many types of insulated pipe fittings. For the production of the insulation layer, some manufacturers use on-site foaming to foam the insulation material directly around the pipe fittings to ensure the integrity and tightness of the insulation layer. In terms of connection methods, welding technology is often used to connect metal pipe fittings, which can provide a relatively strong connection effect; threaded connection is suitable for some small pipe fittings or parts that need to be frequently disassembled; flange connection is often used for larger diameter pipe fittings, which is convenient for installation and maintenance.

[0007] However, the above approach presents a significant hardware structural issue. When the piping system is subjected to significant tensile forces, such as during earthquakes or ground subsidence, existing pipe fittings may crack or loosen at their connections, impacting the normal operation of the piping system. This application addresses this issue by proposing a solution that utilizes a multi-material design for thermal insulation pipe fittings, which can disperse and withstand external tensile forces to a certain extent. When the pipe fittings are subjected to tension, the polyurethane foam can alleviate this tension through its own deformation, reducing the direct effect on the working pipe. Utility Model Content

[0008] (1) Technical problems solved

[0009] In response to the shortcomings of the existing technology, the utility model provides an anti-static tensile-resistant thermal insulation pipe fitting, which solves the technical problem that when the pipeline system is subjected to a large tensile force, such as in an earthquake or foundation settlement, the existing pipe fittings may break or the connections may loosen, affecting the normal operation of the pipeline system.

[0010] (2) Technical solution

[0011] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0012] An anti-static, tensile-resistant, and thermally-insulated pipe fitting includes an inner pipe. The anti-static, tensile-resistant, and thermally-insulated pipe fitting is also provided with a protective mechanism, including an extension pipe and two connecting tubes. The surface of the inner pipe is fixedly connected to a polyurethane foam layer, and the surface of the polyurethane foam layer is fixedly connected to a high-density polyethylene layer. The opposite ends of the two connecting tubes are fixedly installed with flanges, and the two flanges are parallel to each other.

[0013] Preferably, the two flanges are fixedly connected to opposite sides thereof with connecting tubes, and an extension tube is provided between the two connecting tubes.

[0014] Preferably, grooves are provided on opposite sides of the two connecting tubes, both ends of the extension tube are movably connected to the two connecting tubes, and both ends of the extension tube are located in the corresponding grooves.

[0015] Preferably, a group of limiting grooves are formed on the surfaces of the two connecting cylinders, and each limiting groove is communicated with the groove.

[0016] Preferably, a group of limiting blocks are provided on the surfaces of the two connecting cylinders, and each limiting block corresponds to the position of the limiting groove on the connecting cylinder.

[0017] Preferably, each limiting block is fixedly connected to the surface of the extension tube, and each limiting block passes through the corresponding limiting groove.

[0018] (3) Beneficial effects

[0019] 1. The polyurethane foam layer has excellent thermal insulation performance and certain strength and toughness. It can effectively reduce heat loss and provide tensile support for the pipe fittings to a certain extent. The polyurethane foam layer forms a tight structure after curing, and has good adhesion with the inner pipe and the high-density polyethylene layer. The high-density polyethylene layer has good toughness and tensile strength. The outer protective pipe can protect the insulation layer and the steel pipe and withstand a certain external tension. When the insulated pipe fittings are subjected to tension, the high-density polyethylene layer and the polyurethane foam layer can play a buffering role, reducing the tension directly acting on the inner pipe, and at the same time making the tension more evenly distributed in the entire structure, thereby improving the tensile capacity of the pipe fittings.

[0020] 2. When the thermal insulation pipe fitting is stretched, the two connecting tubes will move with the flange. When the two connecting tubes move to a certain distance, the limit block on the extension tube will press against the connecting tube, so that the thermal insulation pipe fitting cannot move further, avoiding the problem of the thermal insulation pipe fitting being broken due to excessive stretching. The combination of the two connecting tubes and the extension tube can wrap the inner tube. The connecting tube and the extension tube are made of carbon fiber material with excellent conductivity and strength. The connecting tube and the extension tube are wrapped on the outer surface of the thermal insulation pipe fitting. The carbon fiber can quickly conduct static electricity to avoid static electricity accumulation, thereby improving the anti-static function of the pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 It is a structural diagram of the entire utility model;

[0023] Figure 2 This is a structural diagram of the extension tube of the utility model;

[0024] Figure 3 This is a structural diagram of the high-density polyethylene layer of the utility model;

[0025] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0026] Legend: 11. Flange; 12. Connecting tube; 13. Limit block; 14. Limit groove; 15. Extension tube; 16. Groove; 17. High-density polyethylene layer; 18. Polyurethane foam layer; 19. Inner tube. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides an anti-static tensile-resistant thermal insulation pipe fitting, which effectively solves the technical problem that when the pipeline system is subjected to large tensile forces, such as in earthquakes or foundation settlement, the existing pipe fittings may break or the connections may loosen, affecting the normal operation of the pipeline system. The polyurethane foam layer has excellent thermal insulation performance and certain strength and toughness. It can effectively reduce heat loss and provide tensile support for the pipe fittings to a certain extent. The polyurethane foam layer forms a tight structure after curing and has good adhesion with the inner pipe and the high-density polyethylene layer. The high-density polyethylene layer has good toughness and tensile strength. The outer protective pipe can protect the insulation layer and the steel pipe and withstand a certain external tensile force. When the thermal insulation pipe fitting is subjected to tension, the high-density polyethylene layer and the polyurethane foam layer can play a buffering role, reducing the tension directly acting on the inner pipe, and at the same time making the tension more evenly distributed in the entire structure, thereby improving the tensile resistance of the pipe fitting. Example

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that when the pipeline system is subjected to a large tensile force, such as in the case of an earthquake or foundation settlement, the existing pipe fittings may rupture or the connection may become loose, affecting the normal operation of the pipeline system. The overall idea is as follows:

[0029] In response to the problems existing in the prior art, the utility model provides an anti-static and tensile-resistant thermal insulation pipe fitting, including an inner pipe 19. The anti-static and tensile-resistant thermal insulation pipe fitting is also provided with a protection mechanism, including an extension pipe 15 and two connecting tubes 12. The surface of the inner pipe 19 is fixedly connected to a polyurethane foam layer 18, and the surface of the polyurethane foam layer 18 is fixedly connected to a high-density polyethylene layer 17. The opposite ends of the two connecting tubes 12 are fixedly installed with flanges 11. The two flanges 11 are parallel to each other, and the opposite sides of the two flanges 11 are fixedly connected to the connecting tubes 12. An extension pipe 15 is arranged between the two connecting tubes 12. The polyurethane foam layer 18 has excellent thermal insulation performance and certain strength and toughness. It can effectively reduce heat loss and provide tensile support for the pipe fitting to a certain extent. The polyurethane foam layer 18 forms a tight structure after curing and has good bonding force with the inner pipe 19 and the high-density polyethylene layer 17.

[0030] Grooves 16 are provided on the opposite sides of the two connecting tubes 12, and both ends of the extension tube 15 are movably connected to the two connecting tubes 12. Both ends of the extension tube 15 are located in the corresponding grooves 16. A group of limiting grooves 14 are provided on the surface of the two connecting tubes 12, and each limiting groove 14 is connected to the groove 16. The high-density polyethylene layer 17 has good toughness and tensile strength. The outer protective tube can protect the insulation layer and the steel pipe while bearing a certain external tension. When the insulation pipe fitting is subjected to tension, the high-density polyethylene layer 17 and the polyurethane foam layer 18 can play a buffering role, reducing the tension directly acting on the inner tube 19, and at the same time making the tension more evenly distributed in the entire structure, thereby improving the tensile strength of the pipe fitting.

[0031] A group of limit blocks 13 are provided on the surface of the two connecting tubes 12, each limit block 13 corresponds to the position of the limit groove 14 on the connecting tube 12, each limit block 13 is fixedly connected to the surface of the extension tube 15, and each limit block 13 passes through the corresponding limit groove 14. When the insulation pipe fitting is stretched, the two connecting tubes 12 will move with the flange 11. When the two connecting tubes 12 move to a certain distance, the limit blocks 13 on the extension tube 15 will press against the connecting tube 12, so that the insulation pipe fitting cannot continue to move, avoiding the problem of the insulation pipe fitting being broken due to excessive stretching. The combination of the two connecting tubes 12 and the extension tube 15 can wrap the inner tube 19. The connecting tube 12 and the extension tube 15 are made of carbon fiber material with excellent conductivity and strength. The connecting tube 12 and the extension tube 15 are wrapped on the outer surface of the insulation pipe fitting. The carbon fiber can quickly conduct static electricity, avoid static electricity accumulation, and improve the anti-static function of the pipe fitting.

[0032] Working principle:

[0033] The polyurethane foam layer 18 has excellent thermal insulation performance and certain strength and toughness. It can effectively reduce heat loss and provide tensile support for the pipe fittings to a certain extent. The polyurethane foam layer 18 forms a tight structure after solidification and has good adhesion with the inner pipe 19 and the high-density polyethylene layer 17. The high-density polyethylene layer 17 has good toughness and tensile strength. The outer protective pipe can protect the thermal insulation layer and the steel pipe and withstand a certain external tension. When the thermal insulation pipe fittings are subjected to tension, the high-density polyethylene layer 17 and the polyurethane foam layer 18 can play a buffering role, reducing the tension directly acting on the inner pipe 19, and at the same time making the tension more evenly distributed throughout the structure, thereby improving The tensile strength of the pipe fittings. When the insulation pipe fittings are stretched, the two connecting tubes 12 will move with the flange 11. When the two connecting tubes 12 move to a certain distance, the limit block 13 on the extension tube 15 will press against the connecting tube 12, so that the insulation pipe fittings cannot continue to move, avoiding the problem of the insulation pipe fittings being broken due to excessive stretching. The combination of the two connecting tubes 12 and the extension tube 15 can wrap the inner tube 19. The connecting tube 12 and the extension tube 15 are made of carbon fiber material with excellent conductivity and strength. The connecting tube 12 and the extension tube 15 are wrapped on the outer surface of the insulation pipe fittings. The carbon fiber can quickly conduct static electricity to avoid static electricity accumulation, thereby improving the anti-static function of the pipe fittings.

[0034] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An anti-static tensile-resistant thermal insulation pipe fitting, comprising an inner pipe (19), characterized in that: The anti-static, tensile-resistant, and heat-insulating pipe fitting is also provided with a protection mechanism, comprising an extension pipe (15) and two connecting tubes (12); The surface of the inner tube (19) is fixedly connected to a polyurethane foam layer (18), the surface of the polyurethane foam layer (18) is fixedly connected to a high-density polyethylene layer (17), and flanges (11) are fixedly mounted on opposite ends of the two connecting tubes (12), and the two flanges (11) are parallel to each other.

2. The anti-static tensile-resistant thermal insulation pipe fitting according to claim 1, characterized in that: The two flanges (11) are fixedly connected to opposite sides with connecting tubes (12); Wherein, an extension tube (15) is provided between the two connecting tubes (12).

3. The anti-static tensile-resistant thermal insulation pipe fitting according to claim 2, characterized in that: A groove (16) is formed on opposite sides of the two connecting cylinders (12); Wherein, both ends of the extension tube (15) are movably connected to the two connecting tubes (12), and both ends of the extension tube (15) are located in the corresponding grooves (16).

4. The anti-static tensile-resistant thermal insulation pipe fitting according to claim 3, characterized in that: A set of limiting grooves (14) are provided on the surfaces of the two connecting cylinders (12); Wherein, each of the limiting grooves (14) is communicated with the groove (16).

5. The anti-static tensile-resistant thermal insulation pipe fitting according to claim 4, characterized in that: A set of limit blocks (13) are provided on the surfaces of the two connecting cylinders (12); Wherein, each limiting block (13) corresponds to the position of the limiting groove (14) on the connecting cylinder (12).

6. The anti-static tensile-resistant thermal insulation pipe fitting according to claim 5, characterized in that: Each of the limit blocks (13) is fixedly connected to the surface of the extension tube (15); Wherein, each limiting block (13) passes through the corresponding limiting slot (14).

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