CN111804523A

CN111804523A - General inner wall anticorrosion film forming device for bent and straight pipes

Info

Publication number: CN111804523A
Application number: CN202010523893.3A
Authority: CN
Inventors: 李佩庭; 潘诗大
Original assignee: Nantong Baodeli Machinery Manufacturing Co ltd
Current assignee: Nantong Baodeli Machinery Manufacturing Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-10-23

Abstract

The invention discloses a universal inner wall anticorrosion film forming device for bent and straight pipes, which belongs to the field of inner wall anticorrosion of pipes, and comprises a scraper and a sealing plate, wherein one end of the scraper, which is close to the sealing plate, is fixedly connected with a positioning plate, and an internally adaptive coating pipe is fixedly connected between the sealing plate and the positioning plate. The coating film forming process with the same effect can be carried out on straight and bent pipes, and the coating film forming process has the characteristic of ultrahigh practicability.

Description

General inner wall anticorrosion film forming device for bent and straight pipes

Technical Field

The invention relates to the field of corrosion prevention of pipe inner walls, in particular to a general inner wall corrosion prevention film forming device for bent and straight pipes.

Background

The corrosion prevention of the pipe refers to the corrosion caused by the chemical reaction of the steel pipe in use and transportation under the influence of the use environment and the conveying medium. Corrosion is extremely damaging to metal pipes because the pipe, no matter how good the external coating is, how advanced the external corrosion protection process is, if internal corrosion protection is not performed, corrosion and premature failure can be caused. While the internal corrosion is concealed, the existence of the internal corrosion is often ignored by people. Meanwhile, due to the particularity of the conveying medium, the internal corrosion of the pipe is very serious and even far exceeds the external corrosion. Statistics show that up to now, the corrosion perforations of the inner wall of the pipeline account for 90% of the total corrosion perforations.

The coating technology in the pipe is the research focus of the corrosion prevention technology in the pipe, and the smaller the pipe diameter is, the more difficult the coating is, the coating film forming means is often adopted in the prior art to form a corrosion prevention layer on the inner wall of the pipe, firstly, the corrosion inhibitor is difficult to be uniformly and comprehensively sprayed on the inner wall of the pipe by the method, the thickness of the corrosion prevention film coated in the pipe is uneven, the local corrosion condition is easy to occur in the pipe, and in addition, the existing spraying in the pipe is difficult to be used in the bent pipe.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a universal inner wall anticorrosion film forming device for bent and straight pipes, which is characterized in that a corrosion inhibitor is fully filled between a sealing plate and a positioning plate, the corrosion inhibitor is fully contacted with the inner wall of the pipe in the area, and a plurality of soft brushes are used for brushing the inner wall of the pipe, so that the air gap between the corrosion inhibitor and the inner wall of the pipe is effectively eliminated, and the inner wall of the pipe forms a uniform and complete anticorrosion film.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A general inner wall anticorrosion film forming device for bent and straight pipes comprises a scraper and a sealing plate, wherein the scraper is close to one end of the sealing plate and is fixedly connected with a positioning plate, an inner adaptive smearing pipe is fixedly connected between the sealing plate and the positioning plate and comprises a rubber hose fixedly connected between the scraper and the sealing plate, a plurality of evenly distributed overflow holes are formed in the rubber hose, a plurality of evenly distributed elastic belts are arranged on the outer side of the rubber hose, the left lower end and the right lower end of each elastic belt are both bonded on the outer surface of the rubber hose, a plurality of evenly distributed soft brushes are fixedly connected on the outer surface of each elastic belt, a traction belt is fixedly connected at one end, away from the positioning plate, of the sealing plate, the end of the traction belt is connected with traction equipment, a guide pipe is arranged on one side, away from the sealing plate, of the rubber hose, penetrates through the insides of the scraper and the, the corrosion inhibitor is fully filled between the sealing plate and the positioning plate, the corrosion inhibitor is fully contacted with the inner wall of the pipe in the area, and a plurality of soft brushes are used for coating the inner wall of the pipe, so that the air gap between the corrosion inhibitor and the inner wall of the pipe is effectively eliminated, and the inner wall of the pipe forms a uniform and complete anticorrosive film.

Further, the locating plate includes the heat-conducting plate of fixed connection between flexible rubber hose and scraper blade, a plurality of evenly distributed's of outer end fixedly connected with support column of heat-conducting plate, the ball head shape is adopted to the one end that the heat-conducting plate was kept away from to the support column, the round hole has been seted up on the heat-conducting plate, passage fixed connection is in the inside of round hole, supports inside tubular product through the locating plate, makes the scraper blade can balanced stable move in tubular product inside, guarantees that the clearance between scraper blade and the tubular product inner wall is invariable, makes flexible rubber hose be difficult for causing the influence to the stability of filming of scraper blade to, through the cooperation use of heat-conducting plate and support column, makes the locating plate when playing the support stabilizing effect, can not lead to the.

Further, the one end that the locating plate was kept away from to the scraper blade has seted up a plurality of recesses, the inner wall fixedly connected with heating wire of recess, the one end fixedly connected with controller that the locating plate was kept away from to the scraper blade is a plurality of recess evenly distributed is in the outside of controller, heating wire and controller electric connection, through the heating of heating wire, the inside temperature of tubular product risees on the one hand, makes the moisture of scraper blade in the membrane of tubular product inner wall knife coating formation carry out the rapid evaporation for the dry forming of membrane, on the other hand, the heat of heating wire passes through the scraper blade and transmits to the inside and outside of locating plate and hose in proper order, can preheat the corrosion inhibitor in the hose and the tubular product inner wall, further quickens the dry forming of the membrane of knife coating.

Further, the outside of heating wire is equipped with the dust screen, the lateral wall of dust screen and the inner wall fixed connection of recess, the dust screen plays dustproof effect to the heating wire on the one hand, and the other hand plays the guard action to the heating wire, makes the heating wire be difficult for receiving external object's collision damage.

Furthermore, the outer wall of the scraper is conical, a through hole is formed in the scraper, the material guide pipe is fixedly connected inside the through hole, and the scraper is conical and can be used for conveniently scraping and coating the inner wall of the pipe to form a film.

Furthermore, the sealing plate comprises an inner plate and a rubber layer, the inner plate is fixedly connected to the outer surface of the rubber layer, so that the formed sealing plate and the inner wall of the pipe have good sealing performance, and a corrosion inhibitor is conveniently filled between the sealing plate and the positioning plate and covers the inner wall of the pipe.

Furthermore, the difference between the diameter of the outer ring of the sealing plate and the diameter of the outer ring of the rubber hose is the same as the length of the soft brush, so that the soft brush is in full contact with the inner wall of the pipe, the inner wall of the pipe is coated with the soft brush, the corrosion inhibitor is in full contact with the inner wall of the pipe, bubbles between the corrosion inhibitor and the inner wall of the pipe are effectively eliminated, and the film formed by blade coating is more uniform and complete.

A general inner wall anticorrosion film forming device for bent and straight pipes is provided, and the using method comprises the following steps:

s1, the device is arranged in a pipe to be coated, the end part of a traction belt is connected with traction equipment, the end part of a material conveying pipe is connected with the discharge end of the material conveying equipment, and the electric heating wire starts to heat through a controller;

s2, starting the material conveying equipment, leading the corrosion inhibitor to pass through the material conveying pipe and the material guide pipe in sequence, leading the corrosion inhibitor to enter the rubber hose and enter the space between the inner wall of the pipe through the overflow hole on the rubber hose;

s3, after the corrosion inhibitor is filled between the sealing plate and the positioning plate, starting a traction device, driving the whole device to slowly advance along the inside of the pipe through a traction belt, coating the inner wall of the pipe, and continuously and slowly replenishing the corrosion inhibitor into the rubber hose by a material conveying device at a certain conveying speed.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the scheme, the corrosion inhibitor is fully filled between the sealing plate and the positioning plate, the corrosion inhibitor is fully contacted with the inner wall of the pipe in the area, the inner wall of the pipe is coated with a plurality of soft brushes, the air gap between the corrosion inhibitor and the inner wall of the pipe is effectively eliminated, the inner wall of the pipe forms a uniform and complete anticorrosive film, and the anticorrosive film has the characteristics of high-quality and high-benefit film forming.

(2) The locating plate includes the heat-conducting plate of fixed connection between flexible rubber hose and scraper blade, a plurality of evenly distributed's of outer end fixedly connected with support column of heat-conducting plate, the ball shape is adopted to the one end that the heat-conducting plate was kept away from to the support column, the round hole has been seted up on the heat-conducting plate, passage fixed connection is in the inside of round hole, support inside tubular product through the locating plate, make the scraper blade can balanced stable inside the removal of tubular product, guarantee the clearance between scraper blade and the tubular product inner wall invariable, make flexible rubber hose bending deformation in the pipe be difficult for causing the influence to the stability of filming of scraper blade, and, cooperation through heat-conducting plate and support column is used, make the locating plate when playing.

(3) The one end that the locating plate was kept away from to the scraper blade has been seted up a plurality of recesses, the inner wall fixedly connected with heating wire of recess, the one end fixedly connected with controller that the locating plate was kept away from to the scraper blade, a plurality of recess evenly distributed are in the outside of controller, heating wire and controller electric connection, heating through the heating wire, on the one hand, the inside temperature of tubular product risees, make the moisture of scraper blade in the membrane that tubular product inner wall knife coating formed carry out the flash evaporation, accelerate the dry forming of membrane, on the other hand, the heat of heating wire passes through the interior outside that the scraper blade transmitted to locating plate and rubber hose in proper order, can preheat corrosion inhibitor and tubular product inner wall in the rubber hose, further accelerate the dry forming.

(4) The outside of heating wire is equipped with the dust screen, and the lateral wall of dust screen and the inner wall fixed connection of recess, the dust screen plays dustproof effect to the heating wire on the one hand, and the other hand plays the guard action to the heating wire, makes the heating wire be difficult for receiving external object's collision damage.

(5) The outer wall of scraper blade is the toper shape, has seted up the through-hole on the scraper blade, and passage fixed connection is in the inside of through-hole, is conical outer wall shape through the scraper blade and can conveniently scrape the coating film on the tubular product inner wall.

(6) The sealing plate comprises an inner plate and a rubber layer, the inner plate is fixedly connected to the outer surface of the rubber layer, so that good sealing performance is achieved between the formed sealing plate and the inner wall of the pipe, and the corrosion inhibitor is conveniently filled between the sealing plate and the positioning plate and covers the inner wall of the pipe.

(7) The difference between the diameter of the outer ring of the sealing plate and the diameter of the outer ring of the rubber hose is the same as the length of the soft brush, the soft brush is guaranteed to be in full contact with the inner wall of the pipe, the inner wall of the pipe is coated with the paint through the soft brush, so that the corrosion inhibitor is in full contact with the inner wall of the pipe, bubbles between the corrosion inhibitor and the inner wall of the pipe are effectively eliminated, and the film formed by blade coating is more uniform and complete.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic front view of the present invention in use;

FIG. 6 is a schematic view of the present invention with the elastic band deformed;

FIG. 7 is a perspective view of the positioning plate of the present invention;

FIG. 8 is a schematic front view of the squeegee of the present invention;

fig. 9 is a schematic top view of the squeegee of the invention.

The reference numbers in the figures illustrate:

the device comprises a traction belt 1, a scraper 2, a through hole 201, a groove 202, a positioning plate 3, a heat conducting plate 31, a support column 32, a round hole 33, a rubber hose 41, an elastic belt 42, a soft brush 43, a sealing plate 5, an inner plate 51, a rubber layer 52, a controller 6, a dust screen 7, a material guide pipe 8, a material guide pipe 9 and an electric heating wire 10.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1 and 2, a general inner wall anticorrosion film forming device for a bent and straight pipe comprises a scraper 2 and a sealing plate 5, one end of the scraper 2 close to the sealing plate 5 is fixedly connected with a positioning plate 3, an inner adaptive coating pipe is fixedly connected between the sealing plate 5 and the positioning plate 3, referring to fig. 3 and 4, the inner adaptive coating pipe comprises a rubber hose 41 fixedly connected between the scraper 2 and the sealing plate 5, the rubber hose 41 is provided with a plurality of overflow holes uniformly distributed, a corrosion inhibitor inside the rubber hose 41 can enter between the rubber hose 41 and the inner wall of the pipe through the overflow holes and fully contact with the inner wall of the pipe, the device can be simultaneously suitable for a straight pipe and an irregular bent pipe by using the rubber hose 41, the outer side of the rubber hose 41 is provided with a plurality of elastic bands 42 uniformly arranged, and the left and right lower ends of the elastic bands 42 are both bonded to the outer surface of the rubber, the outer surface of the elastic belt 42 is fixedly connected with a plurality of soft brushes 43 which are uniformly distributed, please refer to fig. 6, the elastic belt 42 has elastic deformation capability, continuously introduces sufficient corrosion inhibitor into the rubber hose 41, under the extrusion of excessive corrosion inhibitor, the elastic band 42 is deformed and extruded outwards under the stress, the soft brush 43 is driven to fully contact with the inner wall of the pipe to be extruded mutually, apply paint with a brush to the inside pipe wall, effectively eliminate the production of bubble between corrosion inhibitor and the inside pipe wall, the one end fixedly connected with traction area 1 of locating plate 3 is kept away from to closing plate 5, the tip and the pulling equipment of traction area 1 are connected, one side that closing plate 5 was kept away from to rubber hose 41 is equipped with passage 8, passage 8 runs through the inside of scraper blade 2 and locating plate 3 and communicates with each other with rubber hose 41, the one end threaded connection that rubber hose 41 was kept away from to passage 8 has conveying pipeline 9, conveying pipeline 9 keeps away from the one end of passage 8 and is connected with conveying material equipment.

Please refer to fig. 7, the positioning plate 3 includes a heat conducting plate 31 fixedly connected between the rubber hose 41 and the scraper 2, the outer end of the heat conducting plate 31 is fixedly connected with a plurality of supporting columns 32 uniformly distributed, one end of the supporting column 32 far away from the heat conducting plate 31 is in a ball head shape, a round hole 33 is formed in the heat conducting plate 31, the material guiding pipe 8 is fixedly connected inside the round hole 33, the positioning plate 3 is supported inside the pipe, the scraper 2 can move inside the pipe in a balanced and stable manner, the gap between the scraper 2 and the inner wall of the pipe is ensured to be constant, the bending deformation of the rubber hose 41 inside the pipe is not easy to affect the film coating stability of the scraper 2, and the positioning plate 3 is used in cooperation with the supporting columns 32, so that the positioning plate 3 plays a role in supporting and stabilizing.

Referring to fig. 8 and 9, one end of the scraper 2 away from the positioning plate 3 is provided with a plurality of grooves 202, the inner wall of each groove 202 is fixedly connected with an electric heating wire 10, one end of the scraper 2 away from the positioning plate 3 is fixedly connected with a controller 6, the plurality of grooves 202 are uniformly distributed on the outer side of the controller 6, the electric heating wires 10 are electrically connected with the controller 6, the scraper 2 and the positioning plate 3 are both made of high thermal conductivity material, and the temperature inside the pipe is increased by heating the electric heating wires 10, so that moisture in a film formed by scraping the scraper 2 on the inner wall of the pipe is quickly evaporated, drying and forming of the film are accelerated, on the other hand, heat of the electric heating wires 10 is sequentially transmitted to the inner side and the outer side of the positioning plate 3 and the rubber hose 41 through the scraper 2, a corrosion inhibitor in the rubber hose 41 and the inner wall of the pipe can be preheated, drying and forming, the outer side wall of the dustproof net 7 is fixedly connected with the inner wall of the groove 202, and the dustproof net 7 plays a dustproof role on one hand for the electric heating wire 10 and plays a protective role on the other hand for the electric heating wire 10, so that the electric heating wire 10 is not easy to be damaged by collision of external objects.

Referring to fig. 5, the outer wall of the scraper 2 is tapered, the scraper 2 is provided with a through hole 201, the material guiding pipe 8 is fixedly connected inside the through hole 201, and the scraper 2 is tapered to facilitate blade coating of a film on the inner wall of the tube, the sealing plate 5 includes an inner plate 51 and a rubber layer 52, the inner plate 51 is fixedly connected to the outer surface of the rubber layer 52, so that the formed sealing plate 5 and the inner wall of the tube have good sealing performance, and a corrosion inhibitor is conveniently filled between the sealing plate 5 and the positioning plate 3 and covers the inner wall of the tube.

Referring to fig. 5, the difference between the outer diameter of the sealing plate 5 and the outer diameter of the rubber hose 41 is the same as the length of the soft brush 43, so as to ensure the sufficient contact between the soft brush 43 and the inner wall of the tube, and the inner wall of the tube is coated with the corrosion inhibitor by the soft brush 43, so that the corrosion inhibitor is fully contacted with the inner wall of the tube, thereby effectively eliminating the generation of bubbles between the corrosion inhibitor and the inner wall of the tube, and enabling the film formed by blade coating to be more uniform and complete.

s1, the device is arranged in a pipe to be coated, the end part of a traction belt 1 is connected with traction equipment, the end part of a material conveying pipe 9 is connected with the discharge end of the material conveying equipment, and the electric heating wire 10 starts to heat through a controller 6;

s2, starting a material conveying device, leading the corrosion inhibitor to pass through the material conveying pipe 9 and the material guide pipe 8 in sequence, leading the corrosion inhibitor to enter the rubber hose 41, and leading the corrosion inhibitor to enter a space between the rubber hose 41 and the inner wall of the pipe through an overflow hole on the rubber hose 41;

s3, after the corrosion inhibitor is filled between the sealing plate 5 and the positioning plate 3, starting the traction equipment, driving the whole device to slowly advance along the interior of the pipe through the traction belt 1, coating the inner wall of the pipe, and continuously and slowly replenishing the corrosion inhibitor into the rubber hose 41 by the material conveying equipment at a certain conveying speed.

The corrosion inhibitor is fully filled between the sealing plate 5 and the positioning plate 3, the corrosion inhibitor is fully contacted with the inner wall of the pipe in the area, and the inner wall of the pipe is coated by the plurality of soft brushes 43, so that the air gap between the corrosion inhibitor and the inner wall of the pipe is effectively eliminated, the inner wall of the pipe forms a uniform and complete anticorrosive film, and the corrosion-resistant pipe has the characteristics of high-quality and high-benefit film forming.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a general anticorrosive film forming device of inner wall of pipe material that bends which characterized in that: comprises a scraper (2) and a sealing plate (5), the scraper (2) is close to one end of the sealing plate (5) and is fixedly connected with a positioning plate (3), an inner adaptive coating pipe is fixedly connected between the sealing plate (5) and the positioning plate (3) and comprises a rubber hose (41) fixedly connected between the scraper (2) and the sealing plate (5), a plurality of evenly distributed overflow holes are formed in the rubber hose (41), a plurality of evenly distributed elastic bands (42) are arranged on the outer side of the rubber hose (41), the left lower end and the right lower end of each elastic band (42) are both bonded on the outer surface of the rubber hose (41), a plurality of evenly distributed soft brushes (43) are fixedly connected on the outer surface of the elastic bands (42), one end of the sealing plate (5) far away from the positioning plate (3) is fixedly connected with a traction belt (1), the end part of the traction belt (1) is connected with traction equipment, one side that closing plate (5) were kept away from in rubber hose (41) is equipped with passage (8), passage (8) run through the inside of scraper blade (2) and locating plate (3) and communicate with each other with rubber hose (41), the one end threaded connection that rubber hose (41) were kept away from in passage (8) has conveying pipeline (9), the one end that passage (8) were kept away from in conveying pipeline (9) is connected with the conveying equipment.

2. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 1, is characterized in that: locating plate (3) include heat-conducting plate (31) between fixed connection in rubber hose (41) and scraper blade (2), the outer end fixedly connected with a plurality of evenly distributed's of heat-conducting plate (31) support column (32), the one end that heat-conducting plate (31) were kept away from in support column (32) adopts the bulb shape, round hole (33) have been seted up on heat-conducting plate (31), passage (8) fixed connection is in the inside of round hole (33).

3. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 1, is characterized in that: a plurality of recesses (202) have been seted up to the one end that locating plate (3) were kept away from in scraper blade (2), the inner wall fixedly connected with heating wire (10) of recess (202), the one end fixedly connected with controller (6) of locating plate (3) are kept away from in scraper blade (2), and are a plurality of recess (202) evenly distributed is in the outside of controller (6), heating wire (10) and controller (6) electric connection.

4. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 3, is characterized in that: the outer side of the electric heating wire (10) is provided with a dustproof net (7), and the outer side wall of the dustproof net (7) is fixedly connected with the inner wall of the groove (202).

5. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 1, is characterized in that: the outer wall of the scraper (2) is in a conical shape, a through hole (201) is formed in the scraper (2), and the material guide pipe (8) is fixedly connected to the inside of the through hole (201).

6. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 1, is characterized in that: the sealing plate (5) comprises an inner plate (51) and a rubber layer (52), and the inner plate (51) is fixedly connected to the outer surface of the rubber layer (52).

7. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 1, is characterized in that: the difference between the outer ring diameter of the sealing plate (5) and the outer ring diameter of the rubber hose (41) is the same as the length of the soft brush (43).

8. The inner wall anticorrosion film forming device for the bent and straight pipes, according to claim 3, is characterized in that: the using method comprises the following steps:

s1, the device is arranged in a pipe to be coated, the end part of a traction belt (1) is connected with traction equipment, the end part of a material conveying pipe (9) is connected with the discharge end of the material conveying equipment, and the electric heating wire (10) starts to heat through a controller (6);

s2, starting a material conveying device, leading the corrosion inhibitor to pass through a material conveying pipe (9) and a material guide pipe (8) in sequence, leading the corrosion inhibitor to enter the interior of the rubber hose (41), and leading the corrosion inhibitor to enter between the rubber hose (41) and the inner wall of the pipe through an overflow hole on the rubber hose (41);

s3, after the corrosion inhibitor is filled between the sealing plate (5) and the positioning plate (3), starting a traction device, driving the whole device to slowly advance along the inside of the pipe through a traction belt (1), coating the inner wall of the pipe, and continuously and slowly replenishing the corrosion inhibitor into the rubber hose (41) by the material conveying device at a certain conveying speed.