CN108758158A - Not parking blocking method for high-temperature acidic etchant gas pipeline and its application - Google Patents
Not parking blocking method for high-temperature acidic etchant gas pipeline and its application Download PDFInfo
- Publication number
- CN108758158A CN108758158A CN201810391771.6A CN201810391771A CN108758158A CN 108758158 A CN108758158 A CN 108758158A CN 201810391771 A CN201810391771 A CN 201810391771A CN 108758158 A CN108758158 A CN 108758158A
- Authority
- CN
- China
- Prior art keywords
- stainless
- steel
- gas pipeline
- wire
- sodium silicate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
Abstract
The invention discloses for high-temperature acidic etchant gas pipeline not parking blocking method and its application, it includes the following steps：（1）, stainless (steel) wire is coated on gas pipeline, keep stainless (steel) wire at regular intervals with pipe surface by padding rigid strutting piece, leak out and locate to be sealed with aluminium sheet in advance；（2）, tightened around stainless (steel) wire periphery is radial with tied silk；（3）, on stainless (steel) wire powder first layer sodium silicate mortar so that there is no gap between gas pipeline and stainless (steel) wire, after sodium silicate mortar solidification after, at sodium silicate mastic powder mortar cracking, to cure without cracking；（4）, powder second layer sodium silicate mortar, after its solidification after, at sodium silicate mastic powder cracking, to cure without cracking；（5）, outsourcing fiberglass.The beneficial effects of the invention are as follows without stopping online to leak source leak stopping；Leak stopping layer itself has good intensity, can guarantee use the inside stainless steel pipes corrode entirely；It can be used 1 year or more, it is easy to maintenance.
Description
Technical field
The present invention relates to field of titanium dioxide production, more particularly to for the not parking leak stopping of high-temperature acidic etchant gas pipeline
Method and its application.
Background technology
It commonly uses pipeline in industrial production to convey gas, conveyed gas often generates corrosion to pipeline.In sulfuric acid process titanium
In white production, metatitanic acid decomposes in rotary kiln generates sulfur dioxide, sulfur trioxide gas and vapor, 200 DEG C of gas temperature
Left and right, reaction equation TiO2xH2OySO3 → △ TiO2+xH2O ↑+ySO3 ↑.It is decomposed in my company's rotary kiln and generates gas
Body is transported to exhaust treatment system by the 316L stainless steel pipes of diameter 800mm.Corrosion failure is generated using pipeline after 4 years,
Production is influenced to be normally carried out.Because gas pipeline is generally relatively thin, it is unable to repair welding, and the replacement pipeline that stops then needs 7 day time, to production
It is affected.
Chinese invention patent publication number CN106958715A discloses a kind of natural gas line on-line production fast blockage equipment,
The equipment includes fixed system and pressure bowl, the fixed system include the trapezoidal fixed frame on no bottom edge, tightener, belt tensioner and
Leading screw, the tightener are installed on fixed frame both ends, and tightener is relatively fixed that frame is movable, and the belt tensioner passes through winds tightening
Fixed frame is fixed on gas pipeline by device, and the leading screw passes vertically through fixed frame and connect with pressure bowl, and the pressure bowl is isosceles
Trapezium structure, bottom process camber, recess are processed into the middle part of arc.Bulb is set on leading screw, and leading screw and pressure bowl pass through ball
The connection structure of head ball bead type is detachably connected.But the equipment is only applicable to the leak stopping of the single leak source on pipeline, and each leakage
Point repair time is longer, if there is two or more leak sources it is relatively close each other in the case of certain sky occupied due to equipment itself
Between, can not multiple leak sources of leak stopping simultaneously, can only each leak source of leak stopping one by one, the operating time is long, operating personnel's exposure for a long time
Under the natural gas environment of leakage, harm health, if the equipment to be used for the leak stopping of high-temperature acidic etchant gas pipeline, operation
Personnel can for a long time be exposed under high-temperature acidic corrosive gas environments, endanger bigger.
Invention content
The technical problem to be solved by the present invention is to the leak stoppers of existing high-temperature acidic etchant gas pipeline or leak stopping sides
Or method need stop replace pipeline influence production or can only when there is leak source the single leak source of leak stopping, plugging time is long, behaviour
Make that harmfulness is big, a kind of not parking blocking method for high-temperature acidic etchant gas pipeline and its application are provided thus.
The technical scheme is that：For the not parking blocking method of high-temperature acidic etchant gas pipeline, it include with
Lower step：(1), stainless (steel) wire is coated on gas pipeline, so that stainless (steel) wire is had with pipe surface by padding rigid strutting piece
One determining deviation, place of leaking out are sealed with aluminium sheet in advance；(2), it is tightened around stainless (steel) wire periphery radial direction with tied silk；(3), in stainless steel
Online powder first layer sodium silicate mortar so that there is no gap between gas pipeline and stainless (steel) wire, after sodium silicate mortar solidification,
At sodium silicate mastic powder mortar cracking, until solidification is without cracking；(4), powder second layer sodium silicate mortar uses water after its solidification
At glass clay powder cracking, until solidification is without cracking；(5), outsourcing fiberglass.
The aperture of stainless (steel) wire described in said program is 20-30mm.
The outer diameter of rigid strutting piece described in said program is 3.5-4mm.
The thickness of fiberglass described in said program is 2mm.
For the application of the not parking blocking method of high-temperature acidic etchant gas pipeline, for conveying sulfate process titanium dioxide production
The gas that middle rotary kiln generates.
The beneficial effects of the invention are as follows without stopping online to leak source leak stopping, and there is no particular/special requirement to leak source position, it can
With the leak stopping simultaneously of more leak sources；Leak stopping layer itself has good intensity, and can guarantee the inside stainless steel pipes corrode entirely makes
With；It can be used 1 year or more, it is easy to maintenance.
Specific implementation mode
With reference to embodiment, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, institute
The embodiment of description is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention,
Those of ordinary skill in the art's every other embodiment without making creative work belongs to the protection of the present invention
Range.
For the not parking blocking method of high-temperature acidic etchant gas pipeline, it includes the following steps：(1), by stainless steel
Net is coated on gas pipeline, keeps stainless (steel) wire at regular intervals with pipe surface by padding rigid strutting piece, place of leaking out is advance
It is sealed with aluminium sheet；(2), it is tightened around stainless (steel) wire periphery radial direction with tied silk；(3), the powder first layer waterglass on stainless (steel) wire
Mortar so that do not have gap between gas pipeline and stainless (steel) wire, after sodium silicate mortar solidification, with sodium silicate mastic powder mortar
At cracking, until solidification is without cracking；(4), powder second layer sodium silicate mortar, after its solidification, at sodium silicate mastic powder cracking, until
Solidification is without cracking；(5), outsourcing fiberglass.
Embodiment 1：For the not parking blocking method of high-temperature acidic etchant gas pipeline, it includes the following steps： (1),
The stainless (steel) wire that aperture is 20mm is coated on gas pipeline, makes stainless steel by padding the rigid strutting piece that outer diameter is 3.5mm
Net is at regular intervals with pipe surface, and place of leaking out is sealed with aluminium sheet in advance；(2), with tied silk around the radial bundle in stainless (steel) wire periphery
Tightly；(3), the powder first layer sodium silicate mortar on stainless (steel) wire so that do not have gap between gas pipeline and stainless (steel) wire, wait for water
After the solidification of glass mortar, at sodium silicate mastic powder mortar cracking, until solidification is without cracking；(4), powder second layer sodium silicate mortar,
After its solidification, at sodium silicate mastic powder cracking, until solidification is without cracking；(5), the fiberglass of outsourcing 2mm thickness.
Embodiment 2：For the not parking blocking method of high-temperature acidic etchant gas pipeline, it includes the following steps： (1),
The stainless (steel) wire that aperture is 25mm is coated on gas pipeline, makes stainless steel by padding the rigid strutting piece that outer diameter is 3.7mm
Net is at regular intervals with pipe surface, and place of leaking out is sealed with aluminium sheet in advance；(2), with tied silk around the radial bundle in stainless (steel) wire periphery
Tightly；(3), the powder first layer sodium silicate mortar on stainless (steel) wire so that do not have gap between gas pipeline and stainless (steel) wire, wait for water
After the solidification of glass mortar, at sodium silicate mastic powder mortar cracking, until solidification is without cracking；(4), powder second layer sodium silicate mortar,
After its solidification, at sodium silicate mastic powder cracking, until solidification is without cracking；(5), the fiberglass of outsourcing 2mm thickness.
Embodiment 3：For the not parking blocking method of high-temperature acidic etchant gas pipeline, it includes the following steps： (1),
The stainless (steel) wire that aperture is 30mm is coated on gas pipeline, makes stainless (steel) wire by padding the rigid strutting piece that outer diameter is 4mm
At regular intervals with pipe surface, place of leaking out is sealed with aluminium sheet in advance；(2), it is tightened around stainless (steel) wire periphery radial direction with tied silk；
(3), the powder first layer sodium silicate mortar on stainless (steel) wire so that do not have gap between gas pipeline and stainless (steel) wire, wait for water glass
After the solidification of glass mortar, at sodium silicate mastic powder mortar cracking, until solidification is without cracking；(4), powder second layer sodium silicate mortar, is waited for
After it cures, at sodium silicate mastic powder cracking, until solidification is without cracking；(5), the fiberglass of outsourcing 2mm thickness.
The blocking method of the present invention can have longer service life, use relative to the method for directly using clay leak stopping
Clay leak stopping is able to maintain that then clay can be by high-temperature acidic gas attack, and the present invention is able to maintain that 1 year one month or so；
It is cumbersome with clay leak stopping, occur leak source will leak stopping it is primary, the present invention can be with the leakage of Regional covering gas pipeline
Gas section, though there is new leak source without secondary operation again in the adjacent domain in leak source, and it is easy to maintenance；The present invention uses
Low in raw material price larger region can be covered on gas pipeline per 500 yuan or so of construction cost per square meter.
Claims (5)
1. for the not parking blocking method of high-temperature acidic etchant gas pipeline, it is characterized in that it includes the following steps：（1）, will
Stainless (steel) wire is coated on gas pipeline, is kept stainless (steel) wire at regular intervals with pipe surface by padding rigid strutting piece, is leaked out
Place is sealed with aluminium sheet in advance；（2）, tightened around stainless (steel) wire periphery is radial with tied silk；（3）, on stainless (steel) wire powder first layer
Sodium silicate mortar so that do not have gap between gas pipeline and stainless (steel) wire, after sodium silicate mortar solidification, use sodium silicate mastic
At powder mortar cracking, until solidification is without cracking；（4）, powder second layer sodium silicate mortar, after its solidification after, opened with sodium silicate mastic powder
Place is split, until solidification is without cracking；（5）, outsourcing fiberglass.
2. the not parking blocking method of high-temperature acidic etchant gas pipeline is directed to as described in claim 1, it is characterized in that described
The aperture of stainless (steel) wire is 20-30mm.
3. the not parking blocking method of high-temperature acidic etchant gas pipeline is directed to as described in claim 1, it is characterized in that described
The outer diameter of rigid strutting piece is 3.5-4mm.
4. the not parking blocking method of high-temperature acidic etchant gas pipeline is directed to as described in claim 1, it is characterized in that described
The thickness of fiberglass is 2mm.
5. as described in claim 1 for the application of the not parking blocking method of high-temperature acidic etchant gas pipeline, feature
It is that it is used to convey the gas that rotary kiln generates in sulfate process titanium dioxide production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391771.6A CN108758158A (en) | 2018-04-27 | 2018-04-27 | Not parking blocking method for high-temperature acidic etchant gas pipeline and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391771.6A CN108758158A (en) | 2018-04-27 | 2018-04-27 | Not parking blocking method for high-temperature acidic etchant gas pipeline and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108758158A true CN108758158A (en) | 2018-11-06 |
Family
ID=64012312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810391771.6A Pending CN108758158A (en) | 2018-04-27 | 2018-04-27 | Not parking blocking method for high-temperature acidic etchant gas pipeline and its application |
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| CN (1) | CN108758158A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120143A (en) * | 1992-09-09 | 1996-04-10 | 钟表弹簧公司 | Methods for repairing pipe |
| CN1200166A (en) * | 1995-10-18 | 1998-11-25 | 3X工程公司 | Modular sleeve for protecting repairing or renovating a pipe |
| CN1940374A (en) * | 2005-09-28 | 2007-04-04 | 张付根 | Method for repairing water pipe crack |
| CN201011409Y (en) * | 2006-08-28 | 2008-01-23 | 尚关奎 | Device used in method of molding pipe repairing leakage pipe line |
| CN102384337A (en) * | 2011-06-20 | 2012-03-21 | 永升建设集团有限公司 | Rapid plugging method for fiberglass pipeline with water and pressure |
| CN206246921U (en) * | 2016-11-24 | 2017-06-13 | 安徽恒生科技发展集团有限公司 | A kind of rapid pipeline repairing device |
-
2018
- 2018-04-27 CN CN201810391771.6A patent/CN108758158A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120143A (en) * | 1992-09-09 | 1996-04-10 | 钟表弹簧公司 | Methods for repairing pipe |
| CN1200166A (en) * | 1995-10-18 | 1998-11-25 | 3X工程公司 | Modular sleeve for protecting repairing or renovating a pipe |
| CN1940374A (en) * | 2005-09-28 | 2007-04-04 | 张付根 | Method for repairing water pipe crack |
| CN201011409Y (en) * | 2006-08-28 | 2008-01-23 | 尚关奎 | Device used in method of molding pipe repairing leakage pipe line |
| CN102384337A (en) * | 2011-06-20 | 2012-03-21 | 永升建设集团有限公司 | Rapid plugging method for fiberglass pipeline with water and pressure |
| CN206246921U (en) * | 2016-11-24 | 2017-06-13 | 安徽恒生科技发展集团有限公司 | A kind of rapid pipeline repairing device |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |