Electric hot melting sleeve for heat preservation pipeline connector

Abstract

The utility model discloses an electric hot melting sleeve for a heat preservation pipeline connector, which relates to the technical field of electric hot melting sleeves and comprises a sleeve body and a reinforcing layer. Electric hot melting belts are fixed to the left side and the right side of the interior of the sleeve body, hot melting connectors are installed on the outer side faces of the electric hot melting belts, the sleeve body is a polyethylene sleeve, the reinforcing layer is fixed to the outer side face of the sleeve body, the outer side of the reinforcing layer is sleeved with a protective net, a through hole is formed in the reinforcing layer, and the reinforcing layer is nitrile rubber buna. The protective net is a steel spiral wire net; according to the electric hot melting sleeve for the heat preservation pipeline connector, the electric hot melting belt is matched with the sealing gaskets, the sealing performance of the connecting position of the electric hot melting sleeve and the heat preservation pipeline connector can be improved, meanwhile, the heat preservation layer can prevent heat in a conveying medium from being lost, and the heat preservation effect is good. And the anti-corrosion coating can prevent external corrosive substances from corroding the electric hot melting sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heat-melting sleeves, in particular to an electric heat-melting sleeve for a heat-insulating pipeline interface. Background Art

[0002] The electric hot melt sleeve is a kind of connecting pipe fitting that connects the jacket pipe together through electric hot melting after the PE sheet is covered with mesh, bent, and rolled. Due to the use of special electric heating wire mesh, the joint part is quite ideal, and its connection strength and sealing effect are very good. It is an updated product of the first generation of electric hot melt sleeves in China. The electric hot melt sleeve is an auxiliary part for connecting pipes that connects the jacket pipe together after the PE sheet is bent, covered with mesh, and rolled. The melting effect is quite ideal, but the electric hot melt sleeve currently used is only equipped with electric hot melt tape inside, which will also affect the sealing effect when sealing the insulation pipe interface. In addition, due to the relatively simple structure of the traditional electric hot melt sleeve, it is easy to be damaged by external high temperature and corrosion during use. For this reason, we propose an electric hot melt sleeve for the insulation pipe interface. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an electric hot melt sleeve for the interface of an insulated pipe. The electric hot melt tape is used in combination with a sealing gasket to increase the sealing performance of the connection between the electric hot melt sleeve and the interface of the insulated pipe. At the same time, the provided insulation layer can prevent the heat loss in the conveying medium, and the anti-corrosion coating can prevent the external corrosive substances from corroding the electric hot melt sleeve, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric hot melt sleeve for a heat-insulating pipe joint comprises a sleeve body and a reinforcement layer;

[0005] Sleeve: Electric hot melt tapes are fixed on both the left and right sides of the interior, and a hot melt joint is installed on the outer side of the electric hot melt tape. The sleeve is a polyethylene sleeve, and the reinforcement layer is fixed on the outer side of the sleeve. A protective net is sleeved on the outer side of the reinforcement layer. A through hole is opened inside the reinforcement layer. The reinforcement layer is made of nitrile rubber, and the protective net is a steel spiral wire net;

[0006] It also includes a sealing pad, two of which are fixedly bonded to the inside of the sleeve body on the left and right sides respectively, and the sealing pad is an asbestos rubber pad.

[0007] Use hot melt joints to connect with external hot melt machines. The electric hot melt tape and sealing gasket can increase the sealing of the interface between the electric hot melt sleeve and the insulation pipe to prevent leakage problems easily caused by a single sealing method. The reinforcement layer and protective net can increase the overall strength of the electric hot melt sleeve.

[0008] Furthermore, it also includes high-strength fibers, which are inserted into the through holes inside the reinforcement layer. The high-strength fibers are glass fiber yarns. The high-strength fibers can increase the strength of the reinforcement layer and have a certain corrosion resistance.

[0009] Furthermore, it also includes an insulation layer, which is fixed on the outer side of the protective net. The insulation layer is phenolic foam. The insulation layer can prevent the heat loss in the transport medium inside the insulation pipe and at the same time play a role in isolating the external temperature.

[0010] Furthermore, it also includes a flame retardant layer, which is fixed on the outer side of the insulation layer. The flame retardant layer is chloroprene rubber. The flame retardant layer can prevent the electric hot melt sleeve from being ignited when a fire occurs outside, so as to play a certain role in blocking the fire.

[0011] Furthermore, it also includes an anti-corrosion coating, which is evenly coated on the surface of the flame retardant layer. The anti-corrosion coating is an alkyd resin coating. The anti-corrosion coating can prevent the surface of the electric hot melt sleeve from being corroded by external corrosive substances to increase the service life of the electric hot melt sleeve.

[0012] Furthermore, it also includes a wear-resistant coating, which is evenly coated on the outer side of the anti-corrosion coating. The wear-resistant coating is a polyurethane coating, and the wear-resistant coating can prevent the corrosion coating from wearing.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. By using a hot melt joint to connect with an external hot melt machine, the electric hot melt tape and sealing pad can increase the sealing of the interface between the electric hot melt sleeve and the insulation pipe to prevent leakage problems caused by a single sealing method, while the reinforcement layer and the protective net can increase the overall strength of the electric hot melt sleeve.

[0015] 2. The setting of the insulation layer can prevent the heat loss in the conveying medium inside the insulation pipe, and at the same time play a role in isolating the external temperature. The setting of the flame retardant layer can prevent the electric hot melt sleeve from being ignited when a fire occurs outside, so as to play a certain role in blocking the fire.

[0016] 3. The anti-corrosion coating can prevent the surface of the electric hot melt sleeve from being corroded by external corrosive substances, while the wear-resistant coating can prevent the corrosion coating from being worn, so as to increase the service life of the electric hot melt sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the flame retardant layer of the utility model.

[0020] In the figure: 1 sleeve, 2 electric hot melt tape, 3 hot melt joint, 4 sealing gasket, 5 reinforcement layer, 6 protection net, 7 high strength fiber, 8 insulation layer, 9 flame retardant layer, 10 anti-corrosion coating, 11 wear-resistant coating. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 , This embodiment provides a technical solution: an electric hot melt sleeve for a heat-insulating pipe interface, comprising a sleeve body 1 and a reinforcement layer 5;

[0023] Sleeve 1: Electric hot melt tapes 2 are fixed on both the left and right sides of the inside, and hot melt joints 3 are installed on the outer side of the electric hot melt tapes 2. The sleeve 1 is a polyethylene sleeve, and a reinforcement layer 5 is fixed on the outer side of the sleeve 1. A protective net 6 is sleeved on the outer side of the reinforcement layer 5. A through hole is opened inside the reinforcement layer 5. The reinforcement layer 5 is made of nitrile rubber, and the protective net 6 is a steel spiral wire net;

[0024] Among them, it also includes a sealing gasket 4, there are two sealing gaskets 4 and they are fixed and bonded to the inside of the sleeve body 1 on the left and right sides respectively, the sealing gasket 4 is an asbestos rubber gasket, and is connected to the external hot melt machine by a hot melt joint 3. The electric hot melt tape 2 cooperates with the sealing gasket 4 to increase the sealing of the interface connection between the electric hot melt sleeve and the insulation pipe to prevent the problem of leakage easily caused by a single sealing method, and the reinforcement layer 5 cooperates with the protective net 6 to increase the overall strength of the electric hot melt sleeve, and also includes high-strength fiber 7, the high-strength fiber 7 is inserted into the through hole inside the reinforcement layer 5, the high-strength fiber 7 is glass fiber yarn, the high-strength fiber 7 can increase the strength of the reinforcement layer 5, and at the same time has a certain corrosion resistance, and also includes a thermal insulation layer 8, the thermal insulation layer 8 is fixed on the outer side of the protective net 6, the thermal insulation layer 8 is phenolic foam, and the set thermal insulation layer 8 can prevent the thermal insulation The pipeline prevents the heat loss in the conveying medium inside the pipeline and at the same time insulates the external temperature. It also includes a flame retardant layer 9, which is fixed on the outer side of the insulation layer 8. The flame retardant layer 9 is chloroprene rubber. The setting of the flame retardant layer 9 can prevent the electric hot melt sleeve from being ignited when a fire occurs outside, so as to play a certain blocking role in the fire. It also includes an anti-corrosion coating 10, which is evenly coated on the surface of the flame retardant layer 9. The anti-corrosion coating 10 is an alkyd resin coating. The anti-corrosion coating 10 can prevent the surface of the electric hot melt sleeve from being corroded by external corrosive substances to increase the service life of the electric hot melt sleeve. It also includes a wear-resistant coating 11, which is evenly coated on the outer side of the anti-corrosion coating 10. The wear-resistant coating 11 is a polyurethane coating. The wear-resistant coating 11 can prevent the corrosion coating 10 from being worn.

[0025] The working principle of an electric hot-melt sleeve for an insulation pipe interface provided by the utility model is as follows: first, the sleeve body 1 is sleeved on the interface of the insulation pipe, and a hot-melt joint 3 is used to connect it to an external hot-melt machine. The electric hot-melt tape 2 cooperates with the sealing pad 4 to increase the sealing of the interface connection between the electric hot-melt sleeve and the insulation pipe to prevent leakage problems easily caused by a single sealing method, and the reinforcement layer 5 cooperates with the protective net 6 to increase the overall strength of the electric hot-melt sleeve. The high-strength fiber 7 inside the reinforcement layer 5 can increase the strength of the reinforcement layer 5 and have a certain corrosion resistance. The set insulation layer 8 can prevent the heat loss in the conveying medium inside the insulation pipe and at the same time play a role in isolating the external temperature. The setting of the flame-retardant layer 9 can prevent the electric hot-melt sleeve from being ignited when a fire occurs outside, so as to play a certain blocking effect on the fire. The anti-corrosion coating 10 coated on the outside can prevent the surface of the electric hot-melt sleeve from being corroded by external corrosive substances, so as to increase the service life of the electric hot-melt sleeve.

[0026] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric heat-melting sleeve for a heat-insulating pipe joint, characterized in that: It comprises a casing (1) and a reinforcement layer (5); The sleeve (1) has an electric hot melt tape (2) fixed on both left and right sides of the interior, a hot melt joint (3) installed on the outer side of the electric hot melt tape (2), the sleeve (1) is a polyethylene sleeve, the reinforcement layer (5) is fixed on the outer side of the sleeve (1), the outer side of the reinforcement layer (5) is sleeved with a protective net (6), the interior of the reinforcement layer (5) is provided with a through hole, the reinforcement layer (5) is made of nitrile rubber, and the protective net (6) is a steel spiral wire net; It also includes a sealing pad (4), wherein two sealing pads (4) are fixedly bonded to the inside of the sleeve (1) on the left and right sides, and the sealing pads (4) are asbestos rubber pads.

2. The electric heat-insulating sleeve for the joint of the heat-insulating pipe according to claim 1, characterized in that: It also comprises high-strength fibers (7), wherein the high-strength fibers (7) are inserted into through holes inside the reinforcement layer (5), and the high-strength fibers (7) are glass fiber yarns.

3. The electric heat-melting sleeve for the heat-insulating pipe joint according to claim 1 is characterized in that: It also comprises a heat-insulating layer (8), wherein the heat-insulating layer (8) is fixed on the outer side of the protective net (6), and the heat-insulating layer (8) is phenolic foam.

4. The electric heat-melting sleeve for the heat-insulating pipe joint according to claim 3 is characterized in that: It also comprises a flame retardant layer (9), which is fixed on the outer side of the thermal insulation layer (8), and the flame retardant layer (9) is made of chloroprene rubber.

5. The electric heat-melting sleeve for the heat-insulating pipe joint according to claim 4 is characterized in that: It also comprises an anti-corrosion coating (10), wherein the anti-corrosion coating (10) is evenly coated on the surface of the flame retardant layer (9), and the anti-corrosion coating (10) is an alkyd resin coating.

6. The electric heat-melting sleeve for the heat-insulating pipe joint according to claim 5, characterized in that: It also comprises a wear-resistant coating (11), wherein the wear-resistant coating (11) is evenly coated on the outer side of the anti-corrosion coating (10), and the wear-resistant coating (11) is a polyurethane coating.

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