CN106269333A - Foaming agent or bubble-tight agent coating method in pipeline - Google Patents
Foaming agent or bubble-tight agent coating method in pipeline Download PDFInfo
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- CN106269333A CN106269333A CN201610633517.3A CN201610633517A CN106269333A CN 106269333 A CN106269333 A CN 106269333A CN 201610633517 A CN201610633517 A CN 201610633517A CN 106269333 A CN106269333 A CN 106269333A
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- Prior art keywords
- pipeline
- sealant
- gas
- coating method
- agent
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
- B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides foaming agent or bubble-tight agent coating method in a kind of pipeline, comprise the steps: that (1) foaming sealant (S ') and gas are collected by reduction vessel (12), and pass the flexible pipe (10) being connected with tap and arrive end of line to be applied afterwards；(2) after a period of time, valve (13) is closed and is only transmitted gas, other particle dryings central through pipeline solidification are attached to the sealant of inner surface；(4) make to foam sealant (S ') helically type is distributed in that net is peripheral or the outer surface of multihole device (6c), and by net or the gas of axial multihole device (6c) inside, the sealant that foams (S ') it is drawn into and through slit (6d).By this coating method, meeting high speed, big fabric width, high-precision spraying requirement, equipment cost reduces, and foaming agent or bubble-tight agent consumption reduce in a large number and be dried and quick solidifying, and the execution of work is the most more economical.
Description
Technical field
The present invention relates to pipeline coating method, particularly relate to one in pipeline, carry out foaming agent or bubble-tight agent painting
The method applied.
Background technology
Basic unit is coated with and scrapes various coating, form composite coating product applications widely.It is the most that coating obtains mode
Kind various, such as roller block printing, spray, scratch, vapour deposition, pour, impregnating, be used to manufacture different products, full
The most different demand of foot and reach various required precision.Spraying spraying method is frequently used for liquid coating at paper, above cloth cover etc.
Spraying, it is adaptable at a high speed, the coating needs of big fabric width, medium accuracy, and on pipeline the specific foaming agent of inner-wall spraying or
Person's bubble-tight agent is because security critical produces and the requirement of operation, and therefore the requirement to precision is higher, current domestic use
Pipeline coating machine is all from import German, Italian, the manufacturing technology of their not external transfer coating layer machine, therefore constrains China
The raising of high-precision tube linear sealing agent coating machine manufacturing technology and development, thus have impact on a series of row relevant to seal for pipe joints
The development of industry.On the premise of current domestic manufacturing technology level is relatively low, therefore exist a kind of to big fabric width high accuracy
Infusion or the demand of bubble-tight agent coating method, externally can save foreign exchange, improves the pipeline industry level of China, also may be used
To increase economic benefit, there is far-reaching influence.
Summary of the invention
It is an object of the invention to provide foaming agent or bubble-tight agent coating method in a kind of pipeline, coating method institute
The coating machine used includes air compressor, pressure-regulating valve door, upstream flow rate adjustor and downstream flow velocity adjustor and spray
Emitter and barometer, air compressor is used for compressing and providing gas, is suitably adjusted the pressure of gas by pressure-regulating valve door,
And use flow rate adjuster to provide suitable flow thus annular flow condition is provided, directly provide through upstream for ejector
The gas of flow speed controller, the gas flowing through downstream flow velocity controller is sent to the nozzle of equipment, thus causes sealant to carry out
Foaming, foaming sealant is introduced directly in injection apparatus, and coating method comprises the steps: (1) foaming sealant and flows through pipe
The gas in road is collected by reduction vessel, and arrives end of line to be applied, at container after the flexible pipe being connected with tap
In, liquids and gases are disconnected from each other, and only gas is discharged into outside, and sealant is collected；Foaming sealant is provided
After a predetermined time segment, valve closing only in-line transmits gas, rapidly by other particle dryings through pipeline central authorities
And solidify the sealant being attached to inner surface of pipeline；(4) update device so that foaming sealant helically type be distributed in net
The outer surface of peripheral or upper multihole device, and by through the gas within net or axial multihole device, this foaming
Sealant is drawn into and through slit, thus provides annular flow condition.
Preferably, annular flow is a kind of circulation state, and wherein the major part of foaming agent or bubble-tight agent presents one
Plant the cylindric layer state along inner surface of pipeline flowing, and gas is in the center flow of pipeline, and the flow process of gas
In be additionally included in foaming agent or the bubble-tight agent molecule of floating movement in gas blanket.
Preferably, the operation simultaneously performed with coating method is that sealant penetrates into the connecting portion that gas easily leaks
Point, and the sealant of wall surface is penetrated on line, and the time synchronized of the sealant meeting of any excess and supply is discharged.
Preferably, for the pipe that a diameter of 2.5 centimetre lengths are 7.5 meters, the loading of sealant and discharge only need 0.7 little
Time, the consumption of fluid sealant only needs 4.1 liters, through upstream flow rate controller (4) and the gas of downstream flow velocity controller (5)
The scale of construction is respectively 190 liters/min and 20 liters/min, and the pressure that described barometer (9) is measured is 0.2kg/cm2。
Preferably, described coating method is applicable to foam sealant or fluid sealant.
Preferably, in the case of coating method uses with compressed-air actuated fluid sealant, fluid sealant can be used as
Delivering gas thus form gas-liquid mixed stream, this gas-liquid mixed stream flows in existing pipeline thus provides it at very high speeds
In circulation, circulation can apply the inner surface of pipeline, especially some grooves and defective part, along with gas-liquid mixed stream
Speed increases, and first fluid sealant and gas flows respectively in the relatively lower part and upper section of pipeline, thus cambium layer
Stream, then fluid sealant flows along the inner surface of pipeline, and gas is along the center flow at high speed of pipeline, thus forms ring
Shape stream, finally, the major part of sealant flows under the ejection conditions, thus forms injection stream.
Preferably, coating machine also sets up air and discharges blower fan (24) for fan (23) and air, turns with having annular
The pipeline of bight portion is connected, and the two ends of pipeline are closed by valve, also set up tank body and blender, and tank body provides liquid for blender
Body sealant, described fluid sealant forms gas liquid mixture, discharges what blower fan provided with from air for fan and air
Delivery gas flow together, gas liquid mixture in pipeline with enough flow at high speed thus annular flow is provided, sealant is at groove
Part, hole, assemble in crack or in the coarse part of pipeline.
Preferably, after coating, pipeline being performed encapsulation process and smoothing processing, excess sealant material is respectively by being placed on discharge
The gas-liquid separator of end of line is collected, or carries out recirculation by blender.
Preferably, for being imbedded in the major diameter main gas conduit of underground, coating method is used for sealing reparation gas supervisor
Road, also includes: (1) is coaxial or approximate the coaxial external diameter that inserts and be slightly less than the pipeline of main pipeline internal diameter in main pipeline；(2) will
Cylindrical space between foaming sealant supply gas main pipeline and pipeline；(3) introduce gas into cylindrical space thus incite somebody to action
The sealant of excess emits, and is disassembled by pipeline and is carried out, and permission is dried and solidification still remains in gas supervisor
Cylindrical seal agent in road.
Preferably, coating machine omits spraying equipment, uses elastic tube in the position of pipeline.
Preferably, to pipeline execution leak-testing to measure its leakage degree before inner surface of pipeline carries out encapsulation process,
If this test shows that leakage degree is higher than predetermined value, then implement lining and process, together with coating method thus in sealant coating
On reoffer cylindrical film thus further prevent leakage.
Preferably, during lining processes, using binding agent to process, adhesive phase is formed at axial duct in cylindrical
Inner surface, be inserted into cylindrical film, this thin film sticks to the inner surface of cylindrical bond layer.
Preferably, use ingot bar method to insert cylindrical film, after bond layer is formed, use the end of guideline element
Before being inserted into pipeline, cylindrical film is hitched, then by pulling this guideline element, cylindrical film is inserted into
In pipeline.
Preferably, this coating method is applicable to gas pipeline, water pipe or cable pipeline.
Coating method technology provided by the present invention, can meet the specific foaming agent of inwall or bubble-tight on pipeline
Agent high speed, the spraying requirement of big fabric width, medium accuracy, improve production efficiency, reduce equipment cost, required foaming agent
Or bubble-tight dosage reduces in a large number, and sealant be dried and solidification can faster, so that the holding of repair
Row is the most more economical.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, advantage and the feature of the present invention.
Accompanying drawing explanation
Describe some specific embodiments of the present invention the most by way of example, and not by way of limitation in detail.
Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.The target of the present invention and feature will be apparent from view of the description below in conjunction with accompanying drawing,
In accompanying drawing:
Fig. 1 represents the pipeline system schematic diagram according to first embodiment
Fig. 2 represents the front view of pipeline system bent tube section implemented according to the present invention, wherein uses and is broken up by parts
Mode shows；
Fig. 3 represents the vertical sectional view of another embodiment of coating method；
Fig. 4 represents the profile of the VII-VII line along accompanying drawing 3；
Fig. 5 A to 5C is the sectional view explaining second embodiment of the invention；
Fig. 6 is the pipeline system schematic diagram according to the second embodiment；
Fig. 7 is the sectional view of accompanying drawing 6 main part；
Fig. 8 is the sectional view according to third embodiment of the invention；
Fig. 9 is the sectional view according to fourth embodiment of the invention；
Figure 10 is the sectional view of the used pipeline of fourth embodiment of the invention.
Detailed description of the invention
In Fig. 1, this coating machine includes air compressor 1, pressure-regulating valve door 2 and 3, upstream flow rate adjustor 4 and downstream
Flow rate adjuster 5, ejector 6, described air compressor 1 is used for compressing and providing gas；Fitted by pressure-regulating valve door 2 and 3
When adjust gas pressure, and use flow rate adjuster 4 and 5 provide suitable flow thus annular flow condition is provided.For
Ejector 6 directly provides the gas through upstream flow rate controller 4, ejector 6 to contribute to forming annular flow.Flow through downstream flow velocity
The gas of controller 5 is sent to the nozzle 7a of equipment 7, thus causes sealant S to foam.Sealant S ' after foaming is direct
Import in injection apparatus 6.
Coating method is referred to accompanying drawing 2 and understands in more detail, and the operation the most simultaneously performed is to be penetrated into by sealant
The coupling part P that gas easily leaks, and the sealant of wall surface is penetrated on line L.It should be noted that the close of any excess
The time synchronized of envelope agent meeting and supply is discharged.Piezometer generally uses reference 9 to specify.
Foaming sealant and the gas flowing through pipeline M are collected by reduction vessel 12, and through the flexible pipe 10 being connected with tap
The end of line that rear arrival is to be applied.Within the container 12, liquids and gases are disconnected from each other, and only gas is discharged into outside, and
Sealant is collected.
After providing foaming agent S ' a predetermined time segment, valve 13 is closed only in-line and is transmitted gas, rapidly by passing
Other particle dryings of pipeline central authorities solidification are attached to the sealant of pipeline M inner surface, are now to use foaming sealant
Stage.
Use the periphery being distributed in net of the update device of Fig. 3 and 4, so foaming sealant S ' helically type or axial
The outer surface of upper multihole device 6c, and by being inhaled into through gas this sealant S ' within net or axial multihole device 6c
And through slit 6d, thus provide annular flow condition.
In a diameter of 2.5 centimetre lengths are the pipe of 7.5 meters, according to traditional method, the loading of sealant and discharge needs two
Individual hour, and the method for the present invention only needs 0.7 hour.It addition, according to traditional method, the consumption of fluid sealant is 9.5
Rise, and this method only needs 4.1 liters.
According to embodiments of the invention, the gas flow through flow speed controller 4 and 5 is respectively 190 liters/min and 20
Liter/min, the pressure that barometer 9 is measured is 0.2kg/cm2。
Although foaming sealant is in aforesaid embodiment, it is possible to use fluid sealant.
Hereafter explanation will discuss second embodiment with reference to accompanying drawing 5 to 7.
Coating method feature according to second embodiment is to be used as delivery with compressed-air actuated fluid sealant
Gas thus form gas-liquid mixed stream, this gas-liquid mixed stream flows in existing pipeline thus provides wherein at very high speeds
Circulation, circulation can apply the inner surface of pipeline, especially some grooves and defective part and can be applied by sealant.
Along with the speed of gas-liquid mixed stream increases, flow regime is by the change shown in Fig. 5 A to 5C.First, such as Fig. 5 A institute
Showing, fluid sealant a and gas b flows respectively in the relatively lower part and upper section of pipeline M, thus forms laminar flow.Then,
Shown in Fig. 5 B, fluid sealant a flows along the inner surface of pipeline M, and gas b is along the center flow at high speed of pipeline M, thus
Form annular flow.Finally, the major part of sealant a flows under the ejection conditions, thus forms injection stream.As it can be seen, ring
Shape stream is used for applying purpose.
6 describe and discuss how this annular flow works in pipe below with reference to the accompanying drawings.
Air is connected with the existing pipeline M with annular turn fractions for fan 23 and air discharge blower fan 24, pipe
The two ends of road M are closed by valve 22.Fluid sealant a is provided for blender 26 from tank body 25.This fluid sealant a forms gas-liquid
Mixture, flows together with the delivery gas b supplying fan 23 and air discharge blower fan 24 to provide from air.This gas-liquid mixed
Body in existing pipeline M with enough flow at high speed thus in accompanying drawing 5B is provided shown in annular flow.Therefore, sealant a can be
Groove part, hole, assemble in crack or in the coarse part of pipeline M, otherwise can cause leakage.Can be hereafter to pipeline M
Perform encapsulation process and smoothing processing.Excess sealant material is collected by the gas-liquid separator being placed on discharge pipe line end respectively, or
Person carries out recirculation by blender 26.
When being ready to the supply fluid sealant of mist in a way, it is advantageous that gas-liquid mixture can be with
Annular flow state low speeds flow.
As it is shown in fig. 7, the method can provide particularly efficient a kind of employing sealant a convenient sealing pipeline and fix
The function of nibs part d.
Accompanying drawing 8 illustrates another embodiment, and wherein this method is for being imbedded in major diameter main gas conduit M of underground,
For sealing the purpose of reparation.
In this embodiment, owing to main gas conduit M has major diameter, therefore can be coaxial or near in this main pipeline M
It is slightly less than the pipeline 39 of main pipeline M internal diameter like the coaxial external diameter that inserts.Use the foaming machine similar with the equipment 7 of accompanying drawing 1, send out
Cylindrical space 40 between bubble sealant S ' supply main pipeline M and pipeline 39.Hereafter, introduce gas into space 40 thus incite somebody to action
The sealant of excess emits.Then pipeline 39 is disassembled and be carried out, and permission is dried and solidification still remains in gas
Cylindrical seal agent in body main pipeline M.
In this example, it is not required that use the spraying equipment 6 of accompanying drawing 1.Use elastic tube to contribute in the position of pipeline 39
Perform the work of this leakage repair.
During major diameter straight tube is carried out encapsulation process in pipeline as shown in Figure 8, required foaming agent or
Foaming sealant S amount is a large amount of to be reduced, and the dry and solidification of sealant can faster, so that the execution of repair is more
The most more economical.
According to existing disclosed method, it is often desirable that before inner surface of pipeline carries out encapsulation process, pipeline is performed leakage
Measure its leakage degree.
If this test shows that leakage degree is higher than predetermined value, then implement lining and process, together with the coating method of the present invention
Thus in sealant coating, reoffer cylindrical film thus further prevent leakage.This mixed processing method also is able to prevent
The generation again of any leakage or preventive maintenance.
In lining processing procedure, use the sealant (herein referring to be binding agent) with adhesion characteristics, and according to it
Any method of front discussion, this binding agent can be convenient, quick and unified use.
Thin film lining processing method is characterised by the adhesive phase inner surface being formed at axial duct in cylinder, then
Inserting cylindrical film, this thin film sticks to the inner surface of cylindrical bond layer.
As it is shown in figure 9, cylindrical bond layer S " formed on the inner surface of pipeline M, and according to the method for inversion, insert one
Layer is thin and the most resilient cylindrical film 56, such as polyethylene film road cylindrical layer S " inside.It is to say,
Thin film 56 tip being wrapped on cylinder 57 outwards overturns and is tightly fixed to comprise the thin film of the frame exhaust openings 57A of cylinder
On.Then air delivers to the turn fractions of pipeline film, and by the way of bellows 58 by it along the axial extension of pipeline, wind
Case 58 connects with described framework.By so carrying gas, thin film 56 inserts in road pipeline M from outlet 57A, and is wrapped in cylinder
On 57, the inner surface of thin film 56 continuously overturns, thus is exposed to outside.Owing to being applied to the air pressure of thin film inversion section,
Upset thin film 56 is stretched also along direction axially outward and unified stickup road on radial direction and axial both direction
Bond layer S " on.When thin film 56 arrives the other end of pipeline M, and blower fan 58 stops and cutting off thin film 56, such as the part of Figure 10
Shown in.Complete leakage repair work lead, it is not necessary to film portion rewind on cylinder.
In order to cylindrical film 56 is inserted, in addition to the method for the present invention, it is possible to use ingot bar method.
According to ingot bar method, bond layer S " formed after, use guideline element end before being inserted into pipeline M will
Thin film 56 hitches, and then by pulling this guideline element, thin film 56 is inserted in pipeline M.
Except gas pipeline, the inventive method is also applied for water pipe or cable pipeline.This method is not merely applicable to
Repair leakage, it is also possible to for the preventative maintenance work of new pipeline, the most do not leak or existing pipeline may
Can be corroded by some.
Although the present invention is described by reference to specific illustrative embodiment, but will not be by these embodiments
Restriction and only limited by accessory claim.Skilled artisan would appreciate that can be without departing from the present invention's
In the case of protection domain and spirit, embodiments of the invention can be modified and revise.
Claims (8)
1. foaming agent or bubble-tight agent coating method in a pipeline, it is characterised in that the painting that described coating method is used
Layer machine includes air compressor (1), pressure-regulating valve door (2,3), upstream flow rate adjustor (4) and downstream flow velocity adjustor (5)
And ejector (6) and barometer (9), described air compressor (1) is used for compressing and providing gas, by pressure-regulating valve door
(2,3) suitably adjust pressure of gas, and use flow rate adjuster (4,5) to provide suitable flow thus provide annular flow
Condition, directly provides the gas through upstream flow rate controller (4) for described ejector (6), flows through described downstream flow velocity and controls
The gas of device (5) is sent to the nozzle (7a) of equipment (7), thus causes sealant (S) to foam, and foaming sealant (S ') straight
Connecing in the described injection apparatus of importing (6), described coating method comprises the steps:
S1 foaming sealant (S ') and flow through the gas of pipeline (M) and collected by reduction vessel (12), and pass and be connected with tap
Flexible pipe (10) arrives end of line to be applied afterwards, and in container (12), liquids and gases are disconnected from each other, and only gas is discharged
To outside, and sealant is collected；
After S2 provides foaming sealant (S ') a predetermined time segment, valve (13) is closed only in-line and is transmitted gas, rapidly
The sealant of pipeline (M) inner surface it is attached to by other particle dryings central through pipeline solidification；
S4 update device so that being distributed in the peripheral of net or axially go up multihole device of foaming sealant (S ') helically type
(6c) outer surface, and by through net or gas that axially multihole device (6c) is internal, described foaming sealant (S ') quilt
Suck and pass slit (6d), thus annular flow condition is provided.
For being imbedded in the major diameter main gas conduit (M) of underground, described coating method is used for sealing reparation described gas supervisor
Road (M), also includes:
S5 is coaxial or approximate coaxial insertion external diameter and be slightly less than the pipeline of main pipeline (M) internal diameter in described main pipeline (M)
(39)。
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 1, it is characterised in that: also
The cylindrical space between described main gas conduit (M) and described pipeline (39) is supplied including: the S6 sealant (S ') that will foam
(40)。
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 1, it is characterised in that: also
Including: S7 introduces gas into described cylindrical space (40) thus emits, the sealant of excess by described pipeline (39)
Disassemble and be carried out, and permission is dried and solidification still remains in the cylindrical seal agent in described main gas conduit (M).
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 1, it is characterised in that: institute
State coating machine and omit described spraying equipment (6), use elastic tube in the position of described pipeline (39).
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 9, it is characterised in that:
Inner surface of pipeline carry out encapsulation process before to pipeline perform leak-testing to measure its leakage degree, if this test show leak
Spend higher than predetermined value, then implement lining and process, together with described coating method thus reoffer cylinder in sealant coating
Thin film thus further prevent leakage.
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 5, it is characterised in that: institute
State during lining processes, use binding agent to process, described adhesive phase in the cylindrical inner surface being formed at axial duct,
Being inserted into cylindrical film, this thin film sticks to the inner surface of cylindrical bond layer.
Foaming agent or bubble-tight agent coating method in a kind of pipeline the most according to claim 6, it is characterised in that: make
Insert cylindrical film by ingot bar method, after bond layer (S ") is formed, use the end of guideline element be inserted into described
Before pipeline (M), described cylindrical film is hitched, then by pulling this guideline element, described cylindrical film is inserted
In described pipeline (M).
8. according to foaming agent in a kind of pipeline described in any previous claim or bubble-tight agent coating method, its
It is characterised by: described coating method is applicable to gas pipeline, water pipe or cable pipeline.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633517.3A CN106269333A (en) | 2016-08-04 | 2016-08-04 | Foaming agent or bubble-tight agent coating method in pipeline |
| PCT/CN2016/094086 WO2018023820A1 (en) | 2016-08-04 | 2016-08-09 | Method of coating foaming agent or foaming sealant in pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610633517.3A CN106269333A (en) | 2016-08-04 | 2016-08-04 | Foaming agent or bubble-tight agent coating method in pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106269333A true CN106269333A (en) | 2017-01-04 |
Family
ID=57665066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610633517.3A Pending CN106269333A (en) | 2016-08-04 | 2016-08-04 | Foaming agent or bubble-tight agent coating method in pipeline |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106269333A (en) |
| WO (1) | WO2018023820A1 (en) |
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- 2016-08-04 CN CN201610633517.3A patent/CN106269333A/en active Pending
- 2016-08-09 WO PCT/CN2016/094086 patent/WO2018023820A1/en active Application Filing
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| JPS5640467A (en) * | 1979-09-07 | 1981-04-16 | Osaka Gas Co Ltd | Coating method of inner surface of arranged pipe |
| US4419163A (en) * | 1981-09-30 | 1983-12-06 | Osaka Gas, Ltd. | Pipeline coating method |
| CN101124065A (en) * | 2005-02-05 | 2008-02-13 | 凯罗斯诺合资公司 | Device and method for cleaning, activating or pre-treating workpieces by blasting carbon dioxide snow |
| CN201783434U (en) * | 2008-02-29 | 2011-04-06 | 沃依特专利有限责任公司 | Coating table |
| CN103619491A (en) * | 2011-03-07 | 2014-03-05 | 加拿大原子能有限公司 | Processes and devices for applying coatings to the interior of tubes |
| CN102527266A (en) * | 2011-12-29 | 2012-07-04 | 多维联合集团有限公司 | Method for statically mixing raw materials for banding production line of sandwich panel |
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