CN210106866U

CN210106866U - Special leaking stoppage tool for branch pipe of lining equipment

Info

Publication number: CN210106866U
Application number: CN201920739436.0U
Authority: CN
Inventors: 李孔雷; 王辉晓; 韩星红; 辛建; 韩翠萍; 刘万路
Original assignee: SHANDONG HUAAN NEW MATERIAL CO Ltd
Current assignee: SHANDONG HUAAN NEW MATERIAL CO Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-02-21
Anticipated expiration: 2029-05-22

Abstract

A special leak stoppage tool for a branch pipe of lining equipment belongs to the technical field of chemical engineering equipment. The rubber gasket is sleeved at the front end of the screw and is attached to the back surface of the blind plate; an external thread part is arranged on the outer ring wall of the rear end of the screw, a through hole is formed in the middle of a metal gasket, the metal gasket is sleeved on the screw, and the nut is rotatably sleeved on the external thread part at the rear end of the screw. The utility model discloses can be convenient for carry out the shutoff to the inside lining tetrafluoro plate mouth of pipe department interface that appears leaking. By adopting the device, the maintenance cost and time are reduced, and the influence on the load and the continuity of production caused by maintenance of the tower sections is also reduced.

Description

Special leaking stoppage tool for branch pipe of lining equipment

Technical Field

The utility model belongs to the technical field of chemical engineering equipment, concretely relates to leaking stoppage instrument of inside lining tetrafluoro equipment and application method thereof.

Background

The fluorine lining equipment adopts an advanced technology to integrate a corrosion-resistant fluorine material layer and steel into a whole, and is a novel chemical container. It has the mechanical strength of steel product, and the advantages of corrosion resistance, no scaling, no growth of microbe, high purity of conveying medium, etc. and is the best anticorrosive product for replacing lining rubber, glass lining and glass fiber reinforced plastic. The service life of the pipeline exceeds that of a stainless steel pipeline, and the pipeline is an ideal anti-corrosion pipeline for conveying materials such as acid, alkali, salt, gas, ore pulp and the like. But the price is only one fourth of that of the stainless steel pipe, and the stainless steel pipe is extracted from various anticorrosive pipes and widely applied to the fields of chemical engineering and the like.

Steel lined tetrafluoro is generally available in two processes, one being roll-coated F40 (ethylene-tetrafluoroethylene copolymer) and the other being lined tetrafluoro sheet. The roll coating F40 process selects a reasonable formula and an optimal lining thickness to combine the plastic and the steel matrix by hot melting. It features that the steel and plastic are integrated, and has strong binding force, synchronous expansion and contraction, not easy to delaminate, and the lining layer has no overlap seam, no bubble, no pinhole, high impact strength, good anti-permeability, smooth and bright surface similar to enamel, small friction coefficient and not easy to scale. The equipment, the pipeline and the pipe fitting with any structural shape can be processed. But also has the defects of poor durability and 2-3 years of average service life.

The other PTFE lining plate process is that the surface of the PTFE plate is roughened by sodium treatment, corrosive liquid and PTFE plastic are subjected to chemical reaction, partial fluorine atoms on the surface of the PTFE plastic are torn off, and thus a carbonized layer and certain polar groups are left on the surface, so that the PTFE plate can be organically fused with the inner surface of a steel container, and is resistant to corrosion and high temperature at a certain temperature. Compared with the roll coating F40 process, the method has the greatest advantages of strong durability, long aging period and average service life of 10 years; the defect is that the interface at the pipe orifice of the equipment is easy to age and has weak points.

At present, polytetrafluoroethylene lining equipment such as towers and tanks need to be returned to a factory for repair once a lining layer has a problem, so that the maintenance cost is high, and the normal use of the equipment is influenced. In the actual use process, the joint of the main pipe body and the branch pipe is easy to age and leak, so that the applicant designs a special leakage plugging tool for the joint of the branch pipe of the lining equipment, the problem part can be plugged quickly, the service life of the main pipe body is prolonged, and the production cost is reduced.

Disclosure of Invention

The utility model aims to solve the technical problem that a special frock of leaking stoppage of inside lining equipment branch pipe is provided, can be convenient for carry out the shutoff to the branch pipe kneck that the inside lining tetrafluoro plate who appears leaking is responsible for the body.

In order to solve the technical problem, the technical scheme of the utility model is that: the special tool for plugging the branch pipe of the lining equipment is characterized by comprising a blind plate, a rubber gasket, a screw, a metal gasket and a nut, wherein the front surface of the blind plate is coated with an ethylene-tetrafluoroethylene copolymer coating in a rolling way, the middle part of the back surface of the blind plate is hinged with the front end of the screw, and the rubber gasket is sleeved at the front end of the screw and is attached to the back surface of the blind plate; an external thread part is arranged on the outer ring wall of the rear end of the screw, a through hole is formed in the middle of a metal gasket, the metal gasket is sleeved on the screw, and the nut is rotatably sleeved on the external thread part at the rear end of the screw.

Preferably, the thickness of the ethylene-tetrafluoroethylene copolymer coating is 3 to 8 mm.

Preferably, the front surface of the metal gasket is provided with an elastic deviation prevention device, the elastic deviation prevention device comprises at least three C-shaped elastic sheets, and the C-shaped elastic sheets are annularly arranged on one surface, facing the rubber gasket, of the metal gasket in an array manner; the opening side of the C-shaped elastic sheet faces the screw.

Preferably, the opening side of the C-shaped elastic sheet is provided with a tightening spring, and two ends of the tightening spring are respectively connected with and tighten two ends of the C-shaped elastic sheet.

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

after the interface of the pipe orifice of the fluorine lining equipment is aged and leaked, the leaked equipment needs to be disassembled and replaced. For example, fluorine lining tower equipment is arranged outside the installation position in the device, mechanical hoisting operation can be carried out, and the leakage tower section can be replaced by five to six persons for about four hours. However, when the tower is located at a deep position, mechanical hoisting operation cannot be performed, a manual chain block is needed, and 2 days may be needed when complex working conditions are met. The technology only needs 2-3 people, and the treatment can be finished in 2 hours. Not only reduces the maintenance cost and time, but also reduces the influence on the load and the continuity of the production caused by the maintenance of the tower sections.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic view of a usage state of the first embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of the second embodiment;

FIG. 5 is a schematic view showing a state of use of the second embodiment;

in the figure: 1. a blind plate; 2. a rubber gasket; 3. a screw; 4. a metal gasket; 5. a nut; 6. a primary tube; 7. lining with a PTFE plate; 8. a branch pipe; 9. a C-shaped spring plate; 10. the spring is braced.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

The utility model relates to a special frock of leaking stoppage of lining equipment branch pipe, including blind plate, rubber gasket, screw rod, metal gasket and nut, the front side roll-coating ethylene-tetrafluoroethylene copolymer coating of blind plate, the front end of screw rod is articulated at the middle part of the back of blind plate, the rubber gasket suit is in the front end of screw rod and laminates with the back of blind plate; an external thread part is arranged on the outer ring wall of the rear end of the screw, a through hole is formed in the middle of a metal gasket, the metal gasket is sleeved on the screw, and the nut is rotatably sleeved on the external thread part at the rear end of the screw. The thickness of the ethylene-tetrafluoroethylene copolymer coating is 3 to 8mm, preferably 5 mm.

When the device is used, when the aging leakage phenomenon appears at the branch pipe joint of the main pipe body of the fluorine lining equipment, materials in the tower are firstly emptied, and the upper tower section is hoisted after the bolt at the joint of the leaked tower section and the upper tower section is removed. The branch pipe interface is cleaned, a blind plate and a rubber gasket are attached to the main pipe body from the inside of the main pipe body to seal the branch pipe interface, one surface of the blind plate, which is coated with the ethylene-tetrafluoroethylene copolymer coating in a rolling mode, faces the inside of the main pipe body, and the rubber gasket can achieve the purpose of sealing and sealing the orifice of the branch pipe. The screw rod extends out of the branch pipe from the joint of the branch pipe, and the metal gasket is sleeved into the screw rod from the outside of the branch pipe and then fastened by the nut, so that the metal gasket is tightly clamped at the outer pipe joint of the branch pipe. And finally, connecting the tower sections by disassembling the tower sections to finish plugging.

Example two

In this embodiment, an elastic anti-deviation device is arranged on the front surface of the metal gasket, and the elastic anti-deviation device comprises at least three "C" -shaped elastic sheets, and each "C" -shaped elastic sheet is annularly arranged on one surface of the metal gasket, which faces the rubber gasket; the opening side of the C-shaped elastic sheet faces the screw. And the opening side of the C-shaped elastic sheet is provided with a tightening spring, and two ends of the tightening spring are respectively connected with two ends of the C-shaped elastic sheet. The elasticity in this embodiment prevents excursion device can make the arc back of all "C" shape shell fragments support tightly the orificial inner wall of branch pipe outside when the shutoff branch pipe, prevents that metal gasket from taking place the skew under external force or self action of gravity, leads to whole frock to take place the skew or not hard up, guarantees that metal gasket's position is moderate fix between two parties in the middle of the outer tube mouth department of branch pipe.

The rest of the structure and the using method are the same as those of the first embodiment, and are not described again.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. The technical solution of the present invention is not to be departed from, and any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A special tool for plugging a branch pipe of lining equipment is characterized by comprising a blind plate, a rubber gasket, a screw, a metal gasket and a nut, wherein the front surface of the blind plate is roll-coated with an ethylene-tetrafluoroethylene copolymer coating, the middle part of the back surface of the blind plate is hinged with the front end of the screw, and the rubber gasket is sleeved at the front end of the screw and is attached to the back surface of the blind plate; an external thread part is arranged on the outer ring wall of the rear end of the screw, a through hole is formed in the middle of a metal gasket, the metal gasket is sleeved on the screw, and the nut is rotatably sleeved on the external thread part at the rear end of the screw.

2. The special tool for plugging the branch pipe of the lining equipment according to claim 1, wherein the tool comprises: the thickness of the ethylene-tetrafluoroethylene copolymer coating is 3-8 mm.

3. The special tool for plugging the branch pipe of the lining equipment according to claim 1, wherein the tool comprises: the front surface of the metal gasket is provided with an elastic anti-deflection device, the elastic anti-deflection device comprises at least three C-shaped elastic sheets, and the C-shaped elastic sheets are annularly arranged on one surface of the metal gasket, which faces the rubber gasket, in an array manner; the opening side of the C-shaped elastic sheet faces the screw.

4. The special tool for plugging the branch pipe of the lining equipment according to claim 3, wherein the tool comprises: and the opening side of the C-shaped elastic sheet is provided with a tightening spring, and two ends of the tightening spring are respectively connected with and tighten two ends of the C-shaped elastic sheet.