CN215522314U

CN215522314U - Glass fiber cloth wrapped polytetrafluoroethylene corrugated pipe

Info

Publication number: CN215522314U
Application number: CN202023216658.6U
Authority: CN
Inventors: 符建明; 符振华; 顾玉良
Original assignee: Jiangnan Fluoroplastic Co ltd
Current assignee: Jiangnan Fluoroplastic Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2022-01-14
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a polytetrafluoroethylene corrugated pipe wrapped by glass fiber cloth, which comprises a polytetrafluoroethylene corrugated pipe body and the glass fiber cloth wrapped on the outer surface of the polytetrafluoroethylene corrugated pipe body. The utility model adopts the mode of the straight pipes at two ends and the bellows at the middle part of the piping system to bear load in frequent vibration or shaking, and the measuring instrument arranged in a matching way can measure whether the tensile force applied to the screw exceeds a set value and properly unscrews the screw after a period of time, thereby prolonging the service life of the bellows; because wrap up the fine cloth of glass on the surface of the tetrafluoro pipe, make full use of its tensile strength of the fine cloth of glass and make the intensity and the tensile strength of this tetrafluoro bellows obtain very big promotion, have fine reinforcing effect to the tetrafluoro pipe, improve life to because wrap up the fine cloth of glass, can conveniently coat the dope layer in order to avoid static and easy advantage such as clean.

Description

Glass fiber cloth wrapped polytetrafluoroethylene corrugated pipe

Technical Field

The utility model relates to a PTFE corrugated pipe wrapped by glass fiber cloth.

Background

The polytetrafluoroethylene tube is a high-quality plunger worker extruded tube, and a special processing technology is adopted, so that the steel tube and the plastic tube can be tightly combined to form the polytetrafluoroethylene liner tube, and the polytetrafluoroethylene liner tube can bear the positive pressure of 1.6Mpa and the negative pressure: 77 Kpa; can be normally used within-60 ℃ to +260 ℃, and has reliable and excellent corrosion resistance. The conveying pipe can convey strong corrosive gas and liquid at high temperature, which cannot be replaced by other pipelines. At present there are tetrafluoro straight tube and tetrafluoro bellows in the application, though tetrafluoro bellows allows certain degree of bending and bears certain power, the atress is great can make the bellows become the weak department in whole piping, in addition, the setting of present piping is not considered the week and is complete to the environment that different sections of piping are located.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a polytetrafluoroethylene corrugated pipe wrapped by glass fiber cloth, which can be used in occasions needing to bear loads due to frequent vibration or shaking, can monitor and measure the state of the corrugated pipe, and prolongs the service life of the corrugated pipe; the strength and the tensile strength of the tetrafluoro bellows are greatly improved, the service life is prolonged, static electricity can be avoided, and the tetrafluoro bellows is easy to clean.

In order to achieve the purpose, the technical scheme of the utility model is to design a polytetrafluoroethylene corrugated pipe wrapped by glass fiber cloth, which comprises a polytetrafluoroethylene corrugated pipe body and the glass fiber cloth wrapped on the outer surface of the polytetrafluoroethylene corrugated pipe body. Because wrap up the fine cloth of glass on the surface of the tetrafluoro pipe, make full use of its tensile strength of the fine cloth of glass and make the intensity and the tensile strength of this tetrafluoro bellows obtain very big promotion, have fine reinforcing effect to the tetrafluoro pipe, improve life to because wrap up the fine cloth of glass, can conveniently coat the dope layer in order to avoid static and easy advantage such as clean. The surface of the glass fiber cloth can be subjected to sizing treatment to ensure that the surface is clean and flat, and is dampproof and mould-proof; the non-smooth fabric surface of the glass fiber cloth can also reduce the noise when corrosive liquid flows in the polytetrafluoroethylene tube.

The technical scheme is that the four-end-face-end face-end face-end face end-end face-end face end-end. The straight polytetrafluoroethylene tubes at two ends and the corrugated polytetrafluoroethylene tube in the middle are adopted at certain special parts of the piping system, so that the occasion that the load needs to be borne due to frequent vibration or shaking can be realized, and the matched measuring instrument can measure whether the tensile force borne by the screw exceeds a set value or not and appropriately unscrew the screw within a short time, so that the service life of the corrugated tube is prolonged. Through the setting of bellows in the middle of the ripples for can absorb the vibration energy to a certain extent in frequent vibrating occasion, guarantee the stability of piping and prolong the life of piping, avoid the bellows to warp too greatly through the limiting action of screw rod. The dynamometer can be used for periodic detection, when the stress of the screw rod is found to be large, the screw rod is unscrewed a little, a certain force is released, the corrugated pipe can continuously play a role, and the service life of the pipe system section is prolonged.

The further technical scheme is that the middle part of the tube wall of the PTFE corrugated tube body is also provided with a layer of glass fiber cloth. Therefore, glass fiber cloth is arranged on the outer surface of the tetrafluoro bellows and the wall of the tetrafluoro bellows, the strength of the tetrafluoro bellows is enhanced, and the tensile property is greatly enhanced.

The further technical scheme is that a coating for avoiding accumulating static electricity is coated on the outer layer of the glass fiber cloth on the outer surface of the tetrafluoro corrugated pipe body.

The other technical scheme is that the tetrafluoro bellows body is provided with two annular grooves for placing the sealing ring, the end part of each tetrafluoro bellows body is provided with an annular groove for placing the sealing ring, a water injection and exhaust pipeline communicated with the annular grooves is arranged in the pipe wall of each tetrafluoro bellows body, the size of the water injection and exhaust pipeline is smaller than that of the annular grooves, and one end, far away from the annular grooves, of the water injection and exhaust pipeline is provided with a plug. Two tetrafluoro bellows body set up in pairs and are convenient for the connection of two tetrafluoro pipes through the setting of ring channel, and in order to guarantee the leakproofness of connecting and guarantee that the isolated air of sealing washer < because the ageing of sealing washer often is because the air exists the ageing of having accelerated the sealing washer > the life of extension sealing washer, water injection exhaust pipeline has been set up, through rotating two tetrafluoro bellows bodies on one side when connecting, the injected water makes the connection leakproofness of two this end parts of tetrafluoro bellows fabulous on one side, and insert the end cap after connecting well, can completely cut off the contact of sealing washer and air for a long time, the ageing process of sealing washer has been delayed.

The utility model has the advantages and beneficial effects that: the utility model adopts the mode of the straight pipes at two ends and the bellows at the middle part of the piping system to bear load in frequent vibration or shaking, and the measuring instrument arranged in a matching way can measure whether the tensile force applied to the screw exceeds a set value and properly unscrews the screw after a period of time, thereby prolonging the service life of the bellows; because wrap up the fine cloth of glass on the surface of the tetrafluoro pipe, make full use of its tensile strength of the fine cloth of glass and make the intensity and the tensile strength of this tetrafluoro bellows obtain very big promotion, have fine reinforcing effect to the tetrafluoro pipe, improve life to because wrap up the fine cloth of glass, can conveniently coat the dope layer in order to avoid static and easy advantage such as clean. Through the setting of bellows in the middle of the ripples for can absorb the vibration energy to a certain extent in frequent vibrating occasion, guarantee the stability of piping and prolong the life of piping, avoid the bellows to warp too greatly through the limiting action of screw rod. Through the setting of bellows in the middle of the ripples for can absorb the vibration energy to a certain extent in frequent vibrating occasion, guarantee the stability of piping and prolong the life of piping, avoid the bellows to warp too greatly through the limiting action of screw rod. The dynamometer can be used for periodic detection, when the stress of the screw rod is found to be large, the screw rod is unscrewed a little, a certain force is released, the corrugated pipe can continuously play a role, and the service life of the pipe system section is prolonged. Two tetrafluoro bellows body set up in pairs and are convenient for the connection of two tetrafluoro pipes through the setting of ring channel, and in order to guarantee the leakproofness of connecting and guarantee that the isolated air of sealing washer < because the ageing of sealing washer often is because the air exists the ageing of having accelerated the sealing washer > the life of extension sealing washer, water injection exhaust pipeline has been set up, through rotating two tetrafluoro bellows bodies on one side when connecting, the injected water makes the connection leakproofness of two this end parts of tetrafluoro bellows fabulous on one side, and insert the end cap after connecting well, can completely cut off the contact of sealing washer and air for a long time, the ageing process of sealing washer has been delayed.

Drawings

FIG. 1 is a schematic view of a Teflon corrugated tube wrapped with glass cloth according to the present invention;

fig. 2 is a side view of fig. 1.

In the figure: 1. a polytetrafluoroethylene bellows body; 2. glass fiber cloth; 3. a straight tetrafluoro pipe; 4. connecting blocks; 5. a screw; 6. a nut; 7. a tension measuring instrument; 8. and (4) coating.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 2 (for convenience of illustration, a straight teflon tube, a connecting block and a screw rod are not shown in fig. 1), the present invention is a glass fiber cloth-wrapped tetrafluoro bellows, which comprises a tetrafluoro bellows body 1 and a glass fiber cloth 2 wrapped on the outer surface of the tetrafluoro bellows body 1. Still be equipped with a tetrafluoro straight tube 3 at 1 both ends of tetrafluoro bellows body respectively an organic whole, at the fixed connection connecting block 4 of surface of tetrafluoro branch pipe, be equipped with the screw with 5 threaded connection of screw rod on the connecting block 4, screw rod 5 passes the screw on two tetrafluoro branch pipes and fixes through nut 6, is equipped with 5 tensile force measuring apparatu 7 of screw rod with screw rod 5 supporting. The middle part of the tube wall of the PTFE corrugated tube body 1 is also provided with a layer of glass fiber cloth 2. The outer layer of the glass fiber cloth 2 on the outer surface of the tetrafluoro bellows body 1 is coated with a coating 8 for avoiding accumulation of static electricity.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a fine cloth parcel tetrafluoro bellows of glass, includes the fine cloth of glass of tetrafluoro bellows body and cladding setting at the fine cloth of tetrafluoro bellows body surface, its characterized in that tetrafluoro bellows body both ends still integrative being equipped with a tetrafluoro branch pipe respectively, at the external fixed surface of tetrafluoro branch pipe connection connecting block, be equipped with the screw with screw rod threaded connection on the connecting block, the screw passes the screw on two tetrafluoro branch pipes and fixed through the nut, is equipped with screw rod tension measuring instrument with the screw rod is supporting.

2. The glass fiber cloth-wrapped tetrafluoro bellows as claimed in claim 1, wherein a layer of glass fiber cloth is further provided in the middle of the wall of the tetrafluoro bellows body.

3. The glass fiber cloth-wrapped tetrafluoro bellows as claimed in claim 2, wherein the outer layer of the glass fiber cloth on the outer surface of the body of the tetrafluoro bellows is coated with a coating layer for preventing accumulation of static electricity.

4. The glass fiber cloth-wrapped tetrafluoro bellows as claimed in claim 3, wherein the tetrafluoro bellows body is provided with two annular grooves for placing the sealing ring at the end of each tetrafluoro bellows body, a water injection and exhaust pipeline communicated with the annular grooves is arranged in the tube wall of the tetrafluoro bellows body, the water injection and exhaust pipeline is smaller than the annular grooves in size, and a plug is arranged at one end of the water injection and exhaust pipeline away from the annular grooves.