CN210034661U

CN210034661U - General high-strength polyethylene pipe for nuclear power

Info

Publication number: CN210034661U
Application number: CN201920008113.4U
Authority: CN
Inventors: 郑祥义; 冯飞; 饶利民; 安璐; 游祥飞
Original assignee: STATE NUCLEAR POWER ENGINEERING Co; SHANGHAI ZHONGSU PIPE INDUSTRY Co Ltd
Current assignee: SHANGHAI ZHONGSU PIPE CO Ltd; Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority date: 2019-01-03
Filing date: 2019-01-03
Publication date: 2020-02-07
Anticipated expiration: 2029-01-03

Abstract

The utility model discloses a universal high-strength nuclear power polyethylene pipe, which comprises a pipe body, a connecting device and a first flange, wherein the port of the pipe body is provided with the connecting device, the pipe body is fixedly connected with the connecting device through the first flange, the first flange is provided with a plurality of first threaded holes, the inner sides of the first threaded holes are provided with first hole grooves, the inner walls of the first hole grooves are embedded with first rubber rings, a first pipeline and a second pipeline are arranged inside the connecting device, the universal high-strength nuclear power polyethylene pipe is suitable for different external pipelines, the specification of the polyethylene pipe is unified by manufacturing the connecting device, thereby the polyethylene pipe is convenient to replace, the purpose of saving cost is achieved, the pipe body adopts the structure of a polyethylene pipe outer layer, a steel-plastic composite layer, a fireproof heat-insulating layer, polyolefin resin and an inner polyethylene pipe, has better fireproof and heat insulation effects, high use strength, simple production process and convenient installation and use.

Description

General high-strength polyethylene pipe for nuclear power

Technical Field

The utility model relates to the technical field of tubular product, specifically general type high strength polyethylene pipe for nuclear power.

Background

Polyethylene is a highly crystalline, non-polar thermoplastic resin. The original polyethylene is milk white in appearance, and is semitransparent to a certain extent on a micro-thin section. PE has excellent resistance to most domestic and industrial chemicals. Polyethylene pipe is also known as high density polyethylene. Polyethylene is a highly crystalline, non-polar thermoplastic resin. The original polyethylene is milk white in appearance, and is semitransparent to a certain extent on a micro-thin section. PE has excellent resistance to most domestic and industrial chemicals.

The polyethylene pipe of different internal diameters need be used when connecting different external pipelines to current polyethylene pipe for nuclear power, lacks the polyethylene pipe of general type, causes use cost too high, and polyethylene pipe intensity is lower simultaneously, damages easily. Accordingly, those skilled in the art have provided a general-purpose high-strength nuclear power polyethylene pipe to solve the problems set forth in the background art.

Disclosure of Invention

An object of the utility model is to provide a general type high strength is polyethylene pipe for nuclear power to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

general type high strength is polyethylene pipe for nuclear power, including tubular product body, connecting device and first flange, tubular product body port department is equipped with connecting device, and the tubular product body passes through first flange fixed connection connecting device, be equipped with a plurality of first screw holes on the first flange, first screw hole inboard is equipped with first hole groove, and the first rubber circle of first hole inslot wall embedding, inside first pipeline and the second pipeline of being equipped with of connecting device, second pipeline inner wall is equipped with the second hole groove, and second hole inslot wall embedding second rubber circle, second pipeline outer wall cartridge third fixing bolt, connecting device's other end fixed connection second flange, be equipped with a plurality of second screw holes on the second flange.

As a further aspect of the present invention: the pipe body is provided with a polyethylene pipe outer layer, a steel-plastic composite layer, a fireproof heat insulation layer, polyolefin resin and an inner polyethylene pipe layer from outside to inside.

As a further aspect of the present invention: the outer wall of the joint of the pipe body and the connecting device is smooth.

As a further aspect of the present invention: the connecting device is fixedly connected with the pipe body through a first fixing bolt.

As a further aspect of the present invention: the connecting device is characterized in that an insertion pipe is arranged at the joint of the connecting device and the pipe body, an external thread structure is arranged on the outer wall of the insertion pipe, and an internal thread structure is arranged on the pipe body corresponding to the insertion pipe.

As a further aspect of the present invention: the first pipeline is communicated with the second pipeline, and the inner diameter of the first pipeline is consistent with that of the pipe body.

As a further aspect of the present invention: the length of the third fixing bolt is one half of the thickness of the pipe wall of the connecting device.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in this polyethylene pipe for general type high strength nuclear power, tubular product body and connecting device pass through first flange and first fixing bolt connection, intubate among the connecting device inserts in the tubular product body, the helicitic texture on the intubate makes connecting device and this body coupling of tubular product inseparabler, first rubber circle on the first flange plays the sealing action, prevent that the liquid in the pipeline from flowing out, insert external pipeline in the second pipeline, second rubber circle plays the sealing action, it is fixed with external pipeline through second fixing bolt simultaneously, liquid passes through the second pipeline from external pipeline this moment, first pipeline gets into in the tubular product body, connecting device can make into different models, be fit for different external pipelines and use, through making connecting device, the specification of polyethylene pipe has been unified, thereby be convenient for change polyethylene pipe, reach cost-effective purpose.

2. In this general type high strength nuclear power polyethylene pipe, the structure of compound layer, fire prevention insulating layer, polyolefin resin and inlayer polyethylene pipe is moulded to the tubular product body adoption polyethylene pipe skin, steel, has better fire prevention adiabatic effect, and use strength is high, and production simple process installs convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of a general high-strength nuclear polyethylene pipe.

FIG. 2 is a schematic structural diagram of a general high-strength nuclear polyethylene pipe.

FIG. 3 is a sectional view of a pipe body in a universal high-strength nuclear power polyethylene pipe.

In the figure: the pipe comprises a pipe body 1, a connecting device 2, a first flange 3, a second flange 4, a first threaded hole 5, a first hole groove 6, a first rubber ring 7, a first fixing bolt 8, an insertion pipe 9, a first pipeline 10, a second pipeline 11, a second hole groove 12, a second rubber ring 13, a third fixing bolt 14, a second threaded hole 15, a second fixing bolt 16, a polyethylene pipe outer layer 17, a steel-plastic composite layer 18, a fireproof thermal insulation layer 19, a polyolefin resin 20 and an inner polyethylene pipe 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a general high-strength nuclear power polyethylene pipe comprises a pipe body 1, a connecting device 2 and a first flange 3, wherein the connecting device 2 is disposed at a port of the pipe body 1, the pipe body 1 is fixedly connected with a connecting device 2 through a first flange 3, a plurality of first threaded holes 5 are arranged on the first flange 3, a first hole groove 6 is arranged on the inner side of each first threaded hole 5, a first rubber ring 7 is embedded in the inner wall of the first hole groove 6, a first pipeline 10 and a second pipeline 11 are arranged in the connecting device 2, a second hole groove 12 is arranged on the inner wall of the second pipeline 11, a second rubber ring 13 is embedded in the inner wall of the second hole groove 12, a third fixing bolt 14 is inserted in the outer wall of the second pipeline 11, the other end of the connecting device 2 is fixedly connected with a second flange 4, and a plurality of second threaded holes 15 are formed in the second flange 4.

The pipe body 1 is provided with a polyethylene pipe outer layer 17, a steel-plastic composite layer 18, a fireproof heat insulation layer 19, polyolefin resin 20 and an inner polyethylene pipe 21 from outside to inside.

The outer wall of the joint of the pipe body 1 and the connecting device 2 is smooth.

The connecting device 2 is provided with a first flange 3 at the joint of the pipe body 1, and the connecting device and the pipe body 2 are fixedly connected with the pipe body 1 through a first fixing bolt 8.

The connecting device 2 is provided with an inserting pipe 9 at the joint of the pipe body 1, and the outer wall of the inserting pipe 9 is provided with an external thread structure.

The first pipeline 10 is communicated with the second pipeline 11, and the inner diameter of the first pipeline 10 is consistent with that of the pipe body 1.

The length of the third fixing bolt 14 is half of the wall thickness of the connecting device 2.

The utility model discloses a theory of operation is:

in the general high-strength polyethylene pipe for nuclear power, a pipe body 1 and a connecting device 2 are connected through a first flange 3 and a first fixing bolt 8, an inserting pipe 9 in the connecting device 2 is inserted into the pipe body 1, a thread structure on the inserting pipe 9 enables the connecting device 2 to be connected with the pipe body 1 more tightly, a first rubber ring 7 on the first flange 3 plays a role in sealing to prevent liquid in the pipeline from flowing out, an external pipeline is inserted into a second pipeline 11, a second rubber ring 13 plays a role in sealing and is fixed with the external pipeline through a second fixing bolt 16, at the moment, the liquid enters the pipe body 1 from the external pipeline through the second pipeline 11 and the first pipeline 10, the connecting device 2 can be manufactured into different types and is suitable for different external pipelines, the specification of the polyethylene pipe is unified by manufacturing the connecting device 2, so that the polyethylene pipe can be conveniently replaced, reach the purpose of practicing thrift the cost, tubular product body 1 adopts the structure of polyethylene pipe skin 17, steel-plastic composite layer 18, fire prevention insulating layer 19, polyolefin resin 20 and inlayer polyethylene pipe 21, has better fire prevention adiabatic effect, and use strength is high, and production technology is simple, installation convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. General type high strength polyethylene pipe for nuclear power, including tubular product body (1), connecting device (2) and first flange (3), its characterized in that, tubular product body (1) port department is equipped with connecting device (2), and tubular product body (1) is through first flange (3) fixed connection connecting device (2), be equipped with a plurality of first screw holes (5) on first flange (3), first screw hole (5) inboard is equipped with first hole groove (6), and first hole groove (6) inner wall embedding first rubber circle (7), connecting device (2) inside is equipped with first pipeline (10) and second pipeline (11), second pipeline (11) inner wall is equipped with second hole groove (12), and second hole groove (12) inner wall embedding second rubber circle (13), second pipeline (11) outer wall cartridge third fixing bolt (14), the other end of the connecting device (2) is fixedly connected with a second flange (4), and a plurality of second threaded holes (15) are formed in the second flange (4).

2. The polyethylene pipe for the universal high-strength nuclear power as claimed in claim 1, wherein the polyethylene pipe body (1) is provided with a polyethylene pipe outer layer (17), a steel-plastic composite layer (18), a fireproof heat insulation layer (19), polyolefin resin (20) and an inner polyethylene pipe (21) from outside to inside.

3. The polyethylene pipe for general purpose high strength nuclear power as claimed in claim 1, wherein the outer wall of the joint of the pipe body (1) and the connecting device (2) is smooth.

4. The polyethylene pipe for the universal high-strength nuclear power as claimed in claim 1, wherein a first flange (3) is arranged at the joint of the connecting device (2) and the pipe body (1), and the connecting device (2) and the pipe body (1) are fixedly connected through a first fixing bolt (8).

5. The polyethylene pipe for the universal high-strength nuclear power as claimed in claim 1, wherein an insertion pipe (9) is arranged at the joint of the connecting device (2) and the pipe body (1), an external thread structure is arranged on the outer wall of the insertion pipe (9), and an internal thread structure is arranged on the pipe body (1) corresponding to the insertion pipe (9).

6. The polyethylene pipe for general purpose high strength nuclear power as claimed in claim 1, wherein the first pipe (10) is communicated with the second pipe (11), and the inner diameter of the first pipe (10) is consistent with the inner diameter of the pipe body (1).

7. The polyethylene pipe for universal high-strength nuclear power as claimed in claim 1, wherein the length of the third fixing bolt (14) is one half of the pipe wall thickness of the connecting device (2).