CN112895111A - Pipeline in-situ repairing method - Google Patents
Pipeline in-situ repairing method Download PDFInfo
- Publication number
- CN112895111A CN112895111A CN202110050841.3A CN202110050841A CN112895111A CN 112895111 A CN112895111 A CN 112895111A CN 202110050841 A CN202110050841 A CN 202110050841A CN 112895111 A CN112895111 A CN 112895111A
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- Prior art keywords
- pipeline
- situ
- support frame
- mortar layer
- centrifugal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0023—Lining the inner wall of hollow objects, e.g. pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a pipeline in-situ repairing method, which comprises the following steps: determining a pipe section area to be repaired of a pipeline, plugging one end of the pipeline in the pipe section area, opening the other end of the pipeline, cleaning sundries in the pipeline, and cleaning the inner surface layer of the pipeline by using a high-pressure water gun; secondly, paving a first mortar layer in the rust area at the bottom of the pipeline through grouting equipment; and thirdly, spraying a second mortar layer on the whole inner part of the pipeline in the area of the repaired pipeline section by using centrifugal spraying equipment to finish pipeline repair. The invention has the advantages of high repairing speed and low manufacturing cost, and the repaired pipeline has better surface compactness, waterproofness and wear resistance.
Description
Technical Field
The invention relates to the technical field of pipeline repair, in particular to an in-situ pipeline repair method.
Background
The pipeline repairing refers to that various technologies are adopted for repairing damaged and leaked conveying pipelines to enable the pipelines to recover normal use functions, wherein the difficulty of the internal repairing technology is high, particularly various diseases such as leakage (concrete pipes) and corrosion (cast iron pipes or steel corrugated pipes) are prone to occurring on the surfaces of the drainage pipelines after long-time use, the general in-situ repairing technology is complex in construction and high in manufacturing cost, and part of the problems are even higher than the cost of newly-built pipelines.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
Still another object of the present invention is to provide a method for repairing a pipeline in situ, which has a fast repairing speed, a low cost, and a repaired pipeline having a good surface compactness, water resistance and wear resistance.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a method for repairing a pipeline in situ, comprising the steps of:
the method comprises the steps of firstly, determining a pipe section area of a pipeline to be repaired, plugging one end of the pipeline in the pipe section area, opening the other end of the pipeline, cleaning sundries in the pipeline, and cleaning the inner surface layer of the pipeline by using a high-pressure water gun.
And secondly, paving a first mortar layer in the rust area at the bottom of the pipeline through grouting equipment.
And thirdly, spraying a second mortar layer on the whole inner part of the pipeline in the area of the repaired pipeline section by using centrifugal spraying equipment to finish pipeline repair.
Preferably, before the first mortar layer is laid in the step 2, the wastewater at the bottom of the pipeline is cleaned.
Preferably, the materials used for the first mortar layer and the second mortar layer are the same, and the materials for forming the mortar layers contain fiber yarns, wherein the fiber yarns are one or more of alkali-resistant glass fibers, polypropylene fibers and wood fibers.
Preferably, the centrifugal spray coating device includes:
spraying a slurry machine; the centrifugal ejector comprises a shell, a driving unit and an ejecting unit, wherein the driving unit is positioned in the shell, the ejecting unit is positioned at the front end of the shell, and the ejecting unit is an impeller; the rear end of the shell is provided with a connecting pipe which is communicated with the impeller and the pulp shooting machine; and
the support, it sets up the below of casing, the support includes main carriage, and the symmetry sets up the support frame of the front end of main carriage and rear end, front and back set up between the support frame connect in the connecting rod of support frame bottom, and set up and be in the piece that pulls of main carriage rear end.
Preferably, the support frame is of an X-shaped structure, the main support frame is arranged on the support frame, and a plurality of positioning holes are symmetrically formed in each side of the support frame.
Preferably, the included angle of the X-shaped structure of the support frame is set to be 60-120 degrees.
Preferably, the driving unit is provided as a motor to drive the impeller to rotate at a high speed.
Preferably, the motor is provided as a pneumatic motor or an electric motor.
Preferably, the traction member is a steel wire rope.
The invention at least comprises the following beneficial effects:
through confirming earlier that the pipeline needs to restore the region, be convenient for block up corresponding pipeline to guarantee the remediation environment, adopt high-pressure squirt to treat the restoration pipeline and wash, with the floating dust and the silt of pipeline internal surface clean, do benefit to the adhesive force that increases the epilogue mortar at the pipeline inboard top layer. Through laying first layer mortar layer alone to pipeline inboard bottom to the serious region of pipeline inboard bottom corrosion is covered and is restoreed to first layer mortar layer, especially cast iron pipe and corrugated steel pipe, and the adhesion on first layer mortar layer is especially important to increase the double-deck protection to the corrosion layer, more does benefit to the promotion of whole restoration effect. And a compact second mortar layer is formed on the surface layer of the inner side of the pipeline by spraying through centrifugal spraying equipment, so that the in-situ repair of the pipeline is completed, the repair speed is high, the repaired pipeline has good waterproof and wear-resistant performances, the service life of the pipeline is prolonged, and the labor intensity and repair cost of pipeline repair are reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a flow chart of a method for in situ rehabilitation of a pipeline according to the present invention;
FIG. 2 is a schematic structural view of the centrifugal spray apparatus according to the present invention;
fig. 3 is a schematic structural view of the centrifugal spraying device according to the invention in a pipeline.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, the present invention provides an in-situ repairing method for a pipeline, comprising the following steps:
the method comprises the steps of firstly, determining a pipe section area to be repaired of the pipeline 100, then plugging one end of the pipeline 100 in the pipe section area, opening the other end of the pipeline 100, cleaning sundries in the pipeline 100, and then cleaning the inner surface layer of the pipeline 100 by using a high-pressure water gun.
And secondly, paving a first mortar layer on the rusted area at the bottom of the pipeline 100 through grouting equipment.
And thirdly, spraying a second mortar layer on the whole inner part of the pipeline 100 in the repaired pipe section area through centrifugal spraying equipment to finish the repair of the pipeline 100.
In the above scheme, need to restore the region through confirming pipeline 100 earlier, be convenient for block up corresponding pipeline 100 to guarantee to restore the environment, adopt the high-pressure squirt to treat to restore pipeline 100 and wash, with the superficial dirt and the silt of pipeline 100 internal surface clean, in order to do benefit to the adhesive force that increases the later order mortar on pipeline 100 inboard top layer. Through laying first layer mortar layer alone to pipeline 100 inboard bottom, cover and restore the serious region of pipeline 100 inboard bottom corrosion with first layer mortar layer, especially cast iron pipe and corrugated steel pipe, the adhesion on first layer mortar layer is especially important to increase the double-deck protection to the corrosion layer, more does benefit to the promotion of whole restoration effect. And then a compact second mortar layer is formed on the surface layer of the inner side of the pipeline 100 by spraying through centrifugal spraying equipment, so that the in-situ repair of the pipeline 100 is completed, the repair speed is high, the repaired pipeline 100 has good waterproof and wear-resistant performances, the service life of the pipeline 100 is prolonged, and the labor intensity and the repair cost of the repair of the pipeline 100 are reduced.
In a preferable scheme, before the first mortar layer is laid in the step 2, the waste water at the bottom of the pipeline 100 is cleaned.
In the above scheme, in order to ensure the adhesion of the first mortar layer and the second mortar layer in the pipeline 100, the accumulated wastewater due to flushing at the bottom of the pipeline 100 needs to be cleaned, and the wastewater can be cleaned by using a wastewater cleaning device, which comprises a hollow conveying pipeline 100, and a sponge body arranged below the main conveying pipeline 100, wherein the top end of the sponge body is provided with a cylinder, so that the sponge body can stretch up and down, a water inlet is arranged below the main conveying pipeline 100, arc-shaped plates are symmetrically arranged at two sides of the main conveying pipeline 100, so as to wrap the sponge body, one side of the concave part of the arc-shaped plate is opposite to the sponge body, and is provided with an extrusion plate, the bottom ends of the arc-shaped plates are provided with sealing gaskets, when the two arc-shaped plates are sealed, the sealing gaskets seal the butt joint of the bottom ends, and the rear end of the extrusion plate is provided with an air cylinder so that the extrusion plate moves in the direction close to the sponge body and far away from the sponge body. The cavernosum moves down to absorb waste water, later shifts up, and two arcs draw close to the cavernosum to wrap up the cavernosum completely, later the stripper plate operation moves to the cavernosum to extrude the water in the cavernosum, will extrude the waste water in the arc through setting up the pipe that absorbs water that goes out at the water inlet and siphons away, and through main conveyer pipe discharge, the intraductal discharge of absorbing water is inhaled to by the water pump effect that will extrude the sponge production, thereby effectively clear up waste water out of pipeline 100 fast.
In a preferable scheme, the materials of the first mortar layer and the second mortar layer are the same, the materials forming the mortar layers contain fiber yarns, and the fiber yarns are one or more of alkali-resistant glass fibers, polypropylene fibers and wood fibers.
In the scheme, the strength and the wear resistance of the mortar layer can be improved and the compactness of the mortar layer is ensured through one or more of alkali-resistant glass fibers, polypropylene fibers and wood fibers.
In one preferred aspect, the centrifugal spray coating device includes:
spraying a slurry machine; the centrifugal injector 1 comprises a shell 10, a driving unit positioned in the shell 10 and an injection unit positioned at the front end of the shell 10, wherein the injection unit is an impeller 11; a connecting pipe 12 is arranged at the rear end of the shell 10, and the impeller 11 and the pulp shooting machine are communicated through the connecting pipe 12; and
the support, it sets up the below of casing 10, the support includes main carriage 20, and the symmetry sets up the support frame 21 of the front end of main carriage 20 and rear end, front and back set up between the support frame 21 connect in the connecting rod 22 of support frame 21 bottom, and set up and be in the piece that pulls of main carriage 20 rear end.
In the above-described scheme, as shown in fig. 2 and 3, mortar is prepared by the shotcrete machine, the connection pipe 12 delivers the mortar into the casing 10, and the mortar is sprayed inside the pipe 100 by the high-speed rotation of the impeller 11. The support brackets 21 are respectively provided on the front and rear ends of the main support frame 20, and form a strong support for the main support frame 20 and the centrifugal ejector 1 above the main support frame 20. The setting of the connecting rod 22 of support frame 21 bottom is convenient for whole equipment to remove in pipeline 100, pull the removal of piece through control main carriage 20, and then control the antedisplacement of whole equipment to equipment in the removal, carry out the spraying to whole pipeline 100, repair process easy operation, it is fast to repair, and the cost is low.
In a preferred embodiment, the supporting frame 21 is configured as an X-shaped structure, the main supporting frame 20 is disposed on the supporting frame 21, and a plurality of positioning holes 210 are symmetrically disposed on each side of the supporting frame 21.
In the above scheme, support frame 21 is the X type and erects on main carriage 20, the support frame comprises two branches alternately, every branch comprises the butt joint of upper and lower sub-pole, and upper sub-pole and lower sub-pole are hollow structure, all set up the locating hole on upper sub-pole and the lower sub-pole, main carriage can adopt the welded mode to set up on the upper sub-pole, the upper sub-pole inserts lower sub-pole, and the rethread bolt runs through the mode of the locating hole on the upper and lower sub-pole, realizes being connected of support frame 21 and main carriage 20 to guarantee support frame 21's stable support, all set up locating hole 210 on every branch, thereby be convenient for adjust centrifugal injector 1 position on branch.
In a preferable scheme, the included angle of the X-shaped structure of the support frame is set to be 60-120 degrees.
In the above scheme, the angle of the support frame 21X is set to 60-120 degrees, so that on one hand, stable support of the front and rear support frames 21 to the structure is convenient to ensure, and on the other hand, the support points of the support frames 21 avoid the first mortar layer at the bottom, so that the first mortar layer is prevented from being broken and replaced by the support frames 21 in the moving process.
In a preferred embodiment, the driving unit is configured as a motor to drive the impeller 11 to rotate at a high speed.
In a preferred embodiment, the motor is configured as a pneumatic motor or an electric motor.
In the above scheme, when the pneumatic motor is selected, the rear end of the shell is butted with an air supply pipe 23 communicated with the pneumatic motor; the pneumatic motor is communicated with the pneumatic motor through the air supply pipe 23, and when the pneumatic motor is driven to work and select the motor, the rear end of the motor is connected with an electric wire.
In a preferred embodiment, the traction member is a steel wire rope.
In the above scheme, the whole structure is moved backwards by the pulling force given to the main supporting frame 20 by the pulling member, so that the spraying is performed while moving, and the spraying of the whole pipeline 100 to be repaired is completed.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. The in-situ pipeline repairing method includes the following steps:
determining a pipe section area to be repaired of a pipeline, plugging one end of the pipeline in the pipe section area, opening the other end of the pipeline, cleaning sundries in the pipeline, and cleaning the inner surface layer of the pipeline by using a high-pressure water gun;
secondly, paving a first mortar layer in the rust area at the bottom of the pipeline through grouting equipment;
and thirdly, spraying a second mortar layer on the whole inner part of the pipeline in the area of the repaired pipeline section by using centrifugal spraying equipment to finish pipeline repair.
2. The in-situ pipeline rehabilitation method according to claim 1, wherein the wastewater at the bottom of the pipeline is cleaned before the first mortar layer is laid in the step 2.
3. The method for repairing a pipe in situ according to claim 1, wherein the first mortar layer and the second mortar layer are made of the same material, and the mortar layer is made of a material containing fiber yarns, wherein the fiber yarns are one or more of alkali-resistant glass fibers, polypropylene fibers and wood fibers.
4. The in situ pipeline rehabilitation method of claim 1, wherein said centrifugal spray device comprises:
spraying a slurry machine; the centrifugal ejector comprises a shell, a driving unit and an ejecting unit, wherein the driving unit is positioned in the shell, the ejecting unit is positioned at the front end of the shell, and the ejecting unit is an impeller; the rear end of the shell is provided with a connecting pipe which is communicated with the impeller and the pulp shooting machine; and
the support, it sets up the below of casing, the support includes main carriage, and the symmetry sets up the support frame of the front end of main carriage and rear end, front and back set up between the support frame connect in the connecting rod of support frame bottom, and set up and be in the piece that pulls of main carriage rear end.
5. The centrifugal spraying device for in-situ pipeline repair of claim 4, wherein the support frame is provided with an X-shaped structure, the main support frame is arranged on the support frame, and a plurality of positioning holes are symmetrically arranged on each side of the support frame.
6. A centrifugal spray coating device for in-situ pipeline rehabilitation according to claim 4, wherein the included angle of the X-shaped structure of the support frame is set to be 60-120 degrees.
7. The centrifugal spray coating device for in situ rehabilitation of pipelines according to claim 4, wherein the drive unit is provided as a motor to drive the impeller to rotate at high speed.
8. A centrifugal spray coating device for in situ rehabilitation of pipelines according to claim 7, wherein the motor is provided as a pneumatic motor or an electric motor.
9. A centrifugal spray coating device for in situ rehabilitation of pipes as claimed in claim 4, wherein the said traction member is a steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050841.3A CN112895111A (en) | 2021-01-14 | 2021-01-14 | Pipeline in-situ repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110050841.3A CN112895111A (en) | 2021-01-14 | 2021-01-14 | Pipeline in-situ repairing method |
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| CN112895111A true CN112895111A (en) | 2021-06-04 |
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| CN202110050841.3A Pending CN112895111A (en) | 2021-01-14 | 2021-01-14 | Pipeline in-situ repairing method |
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| CN211965085U (en) * | 2020-04-09 | 2020-11-20 | 济南轨道中铁管片制造有限公司 | Subway pipe piece mould cleaning device |
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2021
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| CN2894588Y (en) * | 2006-06-05 | 2007-05-02 | 朱凌锋 | Floor cleaning machine |
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Application publication date: 20210604 |