High-heat-resistance polyethylene pipe fitting

Abstract

The utility model relates to a polyethylene pipe fitting with high heat resistance. The problem that a polyethylene pipe in the prior art is poor in heat resistance is solved. The heat pipe comprises a polyethylene inner pipe, a heat insulation film layer is arranged on the inner side of the polyethylene inner pipe in the circumferential direction, a cooling mechanism is arranged on the outer side of the polyethylene inner pipe in the circumferential direction, a plurality of heat conduction assemblies are arranged on the cooling mechanism, and heat dissipation structures are arranged at the ends of the heat conduction assemblies in the circumferential direction. The polyethylene inner pipe has the advantages that the polyethylene inner pipe can be efficiently cooled, heat can be quickly conducted out, the cooling purpose is achieved, the situation that guide paper is cracked when the polyethylene inner pipe conveys high-temperature materials for a long time is avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, in particular to a high heat-resistant polyethylene pipe fitting. Background Art

[0002] Polyethylene pipes are generally used for the transportation of various materials, and the most common one is the transportation of fluid materials. For industries that need to lay various pipes in the open air for water transportation or material transportation, heat-resistant and oxidative aging-resistant pipes are the best choice, such as agriculture and construction. Existing heat-resistant and oxidative aging-resistant polyethylene pipes include a pipe made of PE antioxidant composite material, which has high resistance to heat-resistant and oxidative aging. However, this type of pipe has low deformability and is not easy to produce large deformation when squeezed by external force. Therefore, when the surface of this type of pipe is squeezed, it is easy to cause the inner wall of the pipe to rupture and the strength is insufficient. In addition, the existing pipes have poor heat resistance when carrying high-temperature fluid materials for a long time, and are prone to bursting.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a thermal oxidation aging resistant polyethylene pipe [CN202222578318.0], which includes a pipe body, a plurality of rubber buffer plates, and a connecting part, wherein the rubber buffer plate is arranged inside the inner wall of the pipe body, the rubber buffer plate has an inner cavity, and the inner cavity is filled with an inert gas, the connecting part is arranged inside the inner wall of the pipe body, the connecting part is connected to one end of the rubber buffer plate, and the plurality of rubber buffer plates are connected to the connecting part.

[0004] The above solution has solved the problem of easy rupture and insufficient strength of polyethylene pipes in the prior art to a certain extent, but the solution still has many shortcomings. For example, when high-temperature fluid materials are stored for a long time, the heat resistance is poor and it is easy to burst, affecting normal use. Summary of the invention

[0005] The utility model aims to provide a high heat-resistant polyethylene pipe fitting in view of the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high heat-resistant polyethylene pipe fitting, including a polyethylene inner tube, a heat-insulating film layer is provided on the inner side of the polyethylene inner tube, and a cooling mechanism is provided on the outer side of the polyethylene inner tube, and a plurality of heat-conducting components are provided on the cooling mechanism, and a heat-dissipating structure is provided on the end of the heat-conducting component.

[0007] In the above-mentioned high heat-resistant polyethylene pipe fitting, the cooling mechanism includes a heat-absorbing pipe fitting arranged on the circumferential outside of the polyethylene inner tube, the circumferential inner wall of the heat-absorbing pipe fitting is connected to the circumferential outer wall of the polyethylene inner tube through a heat-conducting connection part, and an annular heat dissipation cavity is formed between the circumferential outer wall of the polyethylene inner tube and the circumferential inner wall of the heat-absorbing pipe fitting.

[0008] In the above-mentioned high heat-resistant polyethylene pipe fitting, a connecting hole is provided on the heat-conducting connecting portion.

[0009] In the above-mentioned high heat-resistant polyethylene pipe fitting, the heat-conducting component includes a heat dissipation pipe body arranged on the circumferential outside of the heat-absorbing pipe fitting, and the heat dissipation pipe body is provided with a plurality of arc-shaped heat dissipation contact parts, and the heat dissipation contact parts are connected to a clamping exhaust mechanism through an exhaust connection part.

[0010] In the above-mentioned high heat-resistant polyethylene pipe fitting, the clamping exhaust mechanism includes an arc-shaped clamping portion arranged on the circumferential outer wall of the heat-absorbing pipe fitting, and the circumferential inner wall of the heat-absorbing pipe fitting is provided with an arc-shaped sealing portion arranged corresponding to the arc-shaped clamping portion.

[0011] In the above-mentioned high heat-resistant polyethylene pipe fitting, an exhaust channel interconnected with the annular heat dissipation cavity is provided on the arc-shaped sealing portion and the arc-shaped clamping portion, and the exhaust channel runs through the exhaust connection portion and the heat dissipation contact portion.

[0012] In the above-mentioned high heat-resistant polyethylene pipe, the heat dissipation structure includes an annular heat exchange ring arranged on the circumferential outer wall of the heat dissipation pipe body, and the annular heat exchange ring is provided with an exhaust through hole.

[0013] In the above-mentioned high heat-resistant polyethylene pipe fitting, the exhaust through hole and the exhaust channel are interconnected.

[0014] In the above-mentioned high heat-resistant polyethylene pipe fitting, a cooling liquid loading chamber arranged in an annular shape is formed between the heat dissipating pipe body and the heat absorbing pipe fitting.

[0015] In the above-mentioned high heat-resistant polyethylene pipe fitting, the heat-absorbing pipe fitting and the heat-conducting connecting part are metal heat-conducting parts.

[0016] Compared with the existing technology, the advantages of the utility model are: it can efficiently dissipate heat from the polyethylene inner tube and quickly extract heat, thereby achieving the purpose of cooling and avoiding the situation where the polyethylene inner tube conveys high-temperature materials for a long time and the paper guide bursts; secondly, it uses liquid cooling and circumferential heat exhaust to perform double cooling, thereby improving the cooling efficiency, allowing the polyethylene inner tube to maintain low-temperature transportation and providing a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the utility model;

[0018] Figure 2 It is a partial structural sectional view of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the annular heat exchange ring in the utility model;

[0021] In the figure: a polyethylene inner tube 1, a heat-insulating film layer 11, a cooling mechanism 2, a heat-absorbing pipe 21, a heat-conducting connecting portion 22, an annular heat-dissipating cavity 23, a connecting hole 24, a heat-conducting component 3, a heat-dissipating pipe body 31, a coolant loading cavity 311, a heat-dissipating contact portion 32, an exhaust connecting portion 321, a clamping exhaust mechanism 33, an arc-shaped clamping portion 331, an arc-shaped sealing portion 332, an exhaust channel 333, a heat-dissipating structure 4, an annular heat-exchanging ring 41, and an exhaust through hole 42. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a high heat-resistant polyethylene pipe fitting comprises a polyethylene inner tube 1, a thermal insulation film layer 11 is provided on the inner side of the polyethylene inner tube 1, and a cooling mechanism 2 is provided on the outer side of the polyethylene inner tube 1, and a plurality of heat-conducting components 3 are provided on the cooling mechanism 2, and a heat dissipation structure 4 is provided on the end of the heat-conducting component 3.

[0024] Among them, the cooling mechanism 2 includes a heat-absorbing pipe 21 arranged on the circumferential outside of the polyethylene inner tube 1. The circumferential inner wall of the heat-absorbing pipe 21 is connected to the circumferential outer wall of the polyethylene inner tube 1 through a heat-conducting connection part 22, and an annular heat dissipation cavity 23 is formed between the circumferential outer wall of the polyethylene inner tube 1 and the circumferential inner wall of the heat-absorbing pipe 21.

[0025] The annular heat dissipation cavity 23 provides an axial heat dissipation gap for the polyethylene inner tube 1 and enables a gap to be formed between the coolant loading cavity 311 and the polyethylene inner tube 1 to prevent the temperature of the transported material from being affected.

[0026] It can be seen that a connecting hole 24 is provided on the heat-conducting connecting portion 22. The setting of the connecting hole 24 enables the heat generated in the circumference of the polyethylene inner tube to be diffused in time.

[0027] Furthermore, the heat conducting component 3 includes a heat dissipation pipe body 31 arranged on the circumferential outer side of the heat absorbing pipe 21 , and a plurality of arc-shaped heat dissipation contact portions 32 are provided on the heat dissipation pipe body 31 , and the heat dissipation contact portions 32 are connected to a clamping exhaust mechanism 33 through an exhaust connection portion 321 .

[0028] The heat dissipation contact portion 32 is embedded in the heat dissipation tube body 31 and the outer wall thereof is flush with the outer wall of the heat dissipation tube body 31 .

[0029] Specifically, the clamping exhaust mechanism 33 includes an arc-shaped clamping portion 331 arranged on the circumferential outer wall of the heat absorbing tube 21 , and an arc-shaped sealing portion 332 corresponding to the arc-shaped clamping portion 331 is arranged on the circumferential inner wall of the heat absorbing tube 21 .

[0030] The clamping exhaust mechanism 33 is used to extract the heat in the annular heat dissipation cavity 23, reduce the coolant pressure in the coolant loading cavity 311, and prevent the coolant from entering the annular heat dissipation cavity 23 and affecting the temperature of the transported high-temperature materials.

[0031] Furthermore, an exhaust passage 333 communicating with the annular heat dissipation cavity 23 is provided on the arc-shaped sealing portion 332 and the arc-shaped clamping portion 331 , and the exhaust passage 333 runs through the exhaust connection portion 321 and the heat dissipation contact portion 32 .

[0032] More specifically, the heat dissipation structure 4 includes an annular heat exchange ring 41 arranged on the circumferential outer wall of the heat dissipation pipe body 31, and an exhaust through hole 42 is provided on the annular heat exchange ring 41.

[0033] The exhaust through hole 42 is used to exhaust high-temperature hot air.

[0034] In detail, the exhaust through hole 42 and the exhaust channel 333 are communicated with each other.

[0035] Preferably, a cooling liquid loading chamber 311 arranged in an annular shape is formed between the heat dissipation pipe body 31 and the heat absorption pipe member 21 .

[0036] In addition, the heat absorbing pipe 21 and the heat conductive connecting portion 22 are metal heat conductive parts.

[0037] The use of the metal heat-conducting member can not only provide circumferential protection for the polyethylene inner tube 1 , but also improve the thermal conductivity and the heat resistance of the polyethylene inner tube 1 .

[0038] In summary, the principle of this embodiment is: by respectively arranging a cooling mechanism 2 and a heat-conducting component 3 on the axially outer side of the polyethylene inner tube 1, conductive liquid cooling and heat extraction are performed respectively, and an annular heat dissipation cavity 23 is arranged to provide a circumferentially arranged heat dissipation gap for the polyethylene inner tube 1, and to prevent the coolant in the coolant loading cavity 311 from contacting the polyethylene inner tube 1 with the temperature of the high-temperature material to be transported.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses more terms such as polyethylene inner tube 1, thermal insulation film layer 11, cooling mechanism 2, heat absorbing pipe 21, heat conducting connection part 22, annular heat dissipation cavity 23, connecting hole 24, heat conducting component 3, heat dissipation pipe body 31, coolant loading cavity 311, heat dissipation contact part 32, exhaust connection part 321, clamping exhaust mechanism 33, arc clamping part 331, arc sealing part 332, exhaust channel 333, heat dissipation structure 4, annular heat exchange ring 41, exhaust through hole 42, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A high heat-resistant polyethylene pipe fitting, comprising a polyethylene inner pipe (1), characterized in that: The polyethylene inner tube (1) is provided with a heat-insulating film layer (11) on the inner circumferential side, and a cooling mechanism (2) is provided on the outer circumferential side of the polyethylene inner tube (1), and a plurality of heat-conducting components (3) are provided on the cooling mechanism (2), and a heat-dissipating structure (4) is provided on the end of the heat-conducting component (3) on the circumferential side.

2. A high heat-resistant polyethylene pipe fitting according to claim 1, characterized in that: The cooling mechanism (2) comprises a heat absorbing pipe (21) arranged on the circumferential outer side of the polyethylene inner tube (1); the circumferential inner wall of the heat absorbing pipe (21) is connected to the circumferential outer wall of the polyethylene inner tube (1) via a heat-conducting connection portion (22); and an annular heat dissipation cavity (23) is formed between the circumferential outer wall of the polyethylene inner tube (1) and the circumferential inner wall of the heat absorbing pipe (21).

3. A high heat-resistant polyethylene pipe fitting according to claim 2, characterized in that: The heat-conducting connecting portion (22) is provided with a connecting hole (24).

4. A high heat-resistant polyethylene pipe fitting according to claim 2, characterized in that: The heat-conducting component (3) comprises a heat dissipation pipe body (31) arranged on the circumferential outer side of the heat-absorbing pipe member (21); the heat dissipation pipe body (31) is provided with a plurality of heat dissipation contact portions (32) arranged in an arc shape, and the heat dissipation contact portions (32) are connected to a clamping exhaust mechanism (33) via an exhaust connection portion (321).

5. A high heat-resistant polyethylene pipe fitting according to claim 4, characterized in that: The clamping exhaust mechanism (33) comprises an arc-shaped clamping portion (331) arranged on the circumferential outer wall of the heat absorbing pipe (21), and the circumferential inner wall of the heat absorbing pipe (21) is provided with an arc-shaped sealing portion (332) arranged corresponding to the arc-shaped clamping portion (331).

6. A high heat-resistant polyethylene pipe fitting according to claim 5, characterized in that: The arc-shaped sealing portion (332) and the arc-shaped clamping portion (331) are provided with an exhaust channel (333) which is interconnected with the annular heat dissipation cavity (23), and the exhaust channel (333) runs through the exhaust connection portion (321) and the heat dissipation contact portion (32).

7. A high heat-resistant polyethylene pipe fitting according to claim 6, characterized in that: The heat dissipation structure (4) comprises an annular heat exchange ring (41) arranged on the circumferential outer wall of the heat dissipation pipe body (31), and an exhaust through hole (42) is provided on the annular heat exchange ring (41).

8. A high heat-resistant polyethylene pipe fitting according to claim 7, characterized in that: The exhaust through hole (42) and the exhaust channel (333) are interconnected.

9. A high heat-resistant polyethylene pipe fitting according to claim 4, characterized in that: A cooling liquid loading chamber (311) arranged in an annular shape is formed between the heat dissipation pipe body (31) and the heat absorption pipe member (21).

10. A high heat-resistant polyethylene pipe fitting according to claim 9, characterized in that: The heat absorbing pipe (21) and the heat conducting connecting part (22) are metal heat conducting parts.

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