CN1608794A - Repairing method for crack in bottom of large inflammable and explosive medium storing tank - Google Patents
Repairing method for crack in bottom of large inflammable and explosive medium storing tank Download PDFInfo
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- CN1608794A CN1608794A CN 200410053185 CN200410053185A CN1608794A CN 1608794 A CN1608794 A CN 1608794A CN 200410053185 CN200410053185 CN 200410053185 CN 200410053185 A CN200410053185 A CN 200410053185A CN 1608794 A CN1608794 A CN 1608794A
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- Prior art keywords
- bottom land
- crack
- aperture
- pipeline
- repairing
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Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002360 explosive Substances 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010079 rubber tapping Methods 0.000 claims abstract description 6
- 238000003860 storage Methods 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003027 oil sand Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The repairing method for crack in bottom of large inflammable and explosive medium storing tank includes exhausting medium in the tank and cleaning the tank and subsequent steps: drilling two holes on two sides of the crack while cooling with water; tapping the holes and connecting pipe with valve to the holes and extending the pipe via the manhole of the tank; leading steam via the pipe to make the temperature below the bottom reach certain value before closing the valves; welding to repair the crack white regulating steam amount with the valves; and eliminating the pipeline and blocking the holes after repairing. The present invention makes it possible to repair large tank without hoisting, and this saves operation time, lower the labor strength and is safe and reliable.
Description
Technical field
The present invention relates to the method for repairing and mending in the storage tank bottom land crack in a kind of chemical production equipment, relate in particular to a kind of method for repairing and mending that is used for large-scale inflammable and explosive agent reservoir bottom land crack.
Background technology
In the Chemical Manufacture industry, those large-scale storage tanks that are used to store chemical mediator or other medium in use for some time, the crack can appear in the bottom land of storage tank.If repair processing to these cracks are untimely, can cause the leakage of medium, not only production is impacted, and because what store in the storage tank is inflammable and explosive chemical mediator mostly, its leakage can cause certain potential safety hazard.
At present, when large-scale inflammable and explosive agent reservoir bottom land crack is repaired, for preventing the burning and the blast of storage tank bottom leakage, usually the method that adopts is with large-scale crane storage tank to be hung original position, subsequently repair by welding is carried out in the bottom land crack, after the repairing, again storage tank is mounted to original position, though this method for repairing and mending has been avoided the possibility that storage tank bottom leakage is burnt and exploded in the mending course, adopts this method relatively to waste time and energy gigantic project.Perhaps exactly bottom land is carried out integral replacing, like this production cost will increase.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method for repairing and mending that is used for large-scale inflammable and explosive agent reservoir bottom land crack, adopts this method for repairing and mending to need not when repairing storage tank to be hung original position, can repair the bottom land crack.
For solving the problems of the technologies described above, the present invention has adopted a kind of method for repairing and mending that is used for large-scale inflammable and explosive agent reservoir bottom land crack, this method comprises the processing of settling accounts of the emptying of storage medium in the storage tank of repairing early stage and storage tank inside, adopts following steps to operate simultaneously:
Step 1: offer aperture K respectively in the both sides that bottom land need mend a split
1And K
2, offering aperture K
1And K
2The time, add water cooling.Because the oil sand of bottom land is inflammable and explosive chemical substance, high temperature during perforate or Mars may cause the burning and the blast of these materials, constantly add the effect that water can play cooling, thereby prevent the burning and the blast of chemical substance;
Step 2: with aperture K
1And K
2After the tapping, connect pipeline respectively, at aperture K
1Pipeline be provided with valve F
1, at aperture K
2Pipeline be provided with valve F
2, pipeline opening K
3Manhole through storage tank is connected to the outside;
Step 3: to pipeline opening K
3Feed steam, reach a certain amount of (and temperature reaches the certain limit value) back valve-off F to bottom land steam
1And F
2, at this moment begin repair by welding is carried out in the bottom land crack;
Step 4: in the process of repair by welding, by valve F
1And F
2The adjusting of opening and closing keeps the certain quantity of steam of bottom land;
Above-mentioned steps two to four is by at aperture K
1And K
2On the valve F that connect
1And F
2Come to keep certain quantity of steam at the bottom of the control flume, between bottom land and oily sand, form a separation layer, thus the spark that produces can avoid the inflammable and explosive chemical substance of oil in husky to touch the repair by welding crack time and the blast and the burning that cause.
Step 5: after the bottom land crack is repaired and finished, with pipeline and the valve F that is connect
1And F
2Remove, and with plug with aperture K
1And K
2Stop up sealing.
For guaranteeing the security implementation of this method for repairing and mending, to pipeline opening K
3Feeding steam has corresponding standard, exactly in the bottom land temperature reaches 50--70 ℃ of scope behind the numerical value, and should be with valve F
1And F
2Close.
Owing to adopted the method for repairing and mending in storage tank bottom land of the present invention crack, by offering aperture in the both sides, crack, and on aperture external pipe and valve, in pipeline, feed steam, thereby steam is filled in separation layer of formation between storage tank bottom land and oily sand, reaches the effect of the spark that produces when avoiding the husky interior inflammable and explosive chemical substance of oil to touch the repair by welding crack.Adopt the method for repairing and mending in storage tank bottom land of the present invention crack, when repairing the bottom land crack, need not storage tank is hung original position, not only saved a large amount of operating times, alleviated working strength, and safe and reliable.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Storage tank bottom land schematic diagram when storage tank schematic diagram when Fig. 1 is used for the method for repairing and mending concrete operations in large-scale inflammable and explosive agent reservoir bottom land crack for the present invention, Fig. 2 are used for the method for repairing and mending concrete operations in large-scale inflammable and explosive agent reservoir bottom land crack for the present invention.
The specific embodiment
Storage tank schematic diagram storage tank bottom land schematic diagram when Fig. 1 and Fig. 2 are used for the method for repairing and mending concrete operations in large-scale inflammable and explosive agent reservoir bottom land crack for the present invention.The specific embodiment is as follows:
Embodiment one: repair the preparation in early stage, with the mediator depletion in the storage tank, and storage tank carried out cleaning; The about 300 millimeters places of respective distance in the both sides, crack that need are repaired offer aperture K respectively
1And K
2, offering aperture K
1And K
2The time, constantly add water cooling; Then with aperture K
1And K
2After the tapping, difference upper connecting tube road is at aperture K
1Pipeline be provided with valve F
1, at aperture K
2Pipeline be provided with valve F
2, pipeline opening K
3Manhole through storage tank is connected to the outside; To pipeline opening K
3Feed steam, reach 60 ℃ to the bottom land temperature after valve-off F
1And F
2, repair by welding is carried out in the bottom land crack; In the process of repair by welding, by valve F
1And F
2The adjusting of opening and closing keeps the certain quantity of steam of bottom land; After the bottom land crack is repaired and is finished, with pipeline and the valve F that is connect
1And F
2Remove, and with plug with aperture K
1And K
2Stop up sealing.Adopt above-mentioned method for repairing and mending can finish repairing to the crack, satisfactory for result.
Embodiment two: repair the preparation in early stage, with the mediator depletion in the storage tank, and storage tank carried out cleaning; The about 300 millimeters places of respective distance in the both sides, crack that need are repaired offer aperture K respectively
1And K
2, offering aperture K
1And K
2The time, constantly add water cooling; Then with aperture K
1And K
2After the tapping, difference upper connecting tube road is at aperture K
1Pipeline be provided with valve F
1, at aperture K
2Pipeline be provided with valve F
2, pipeline opening K
3Manhole through storage tank is connected to the outside; To pipeline opening K
3Feed steam, reach 50 ℃ to the bottom land temperature after valve-off F
1And F
2, repair by welding is carried out in the bottom land crack; In the process of repair by welding, by valve F
1And F
2The adjusting of opening and closing keeps the certain quantity of steam of bottom land; After the bottom land crack is repaired and is finished, with pipeline and the valve F that is connect
1And F
2Remove, and with plug with aperture K
1And K
2Stop up sealing.Adopt above-mentioned method for repairing and mending can finish repairing to the crack, satisfactory for result.
Embodiment three: repair the preparation in early stage, with the mediator depletion in the storage tank, and storage tank carried out cleaning; The about 200 millimeters places of respective distance in the both sides, crack that need are repaired offer aperture K respectively
1And K
2, offering aperture K
1And K
2The time, constantly add water cooling; Then with aperture K
1And K
2After the tapping, difference upper connecting tube road is at aperture K
1Pipeline be provided with valve F
1, at aperture K
2Pipeline be provided with valve F
2, pipeline opening K
3Manhole through storage tank is connected to the outside; To pipeline opening K
3Feed steam, reach 70 ℃ to the bottom land temperature after valve-off F
1And F
2, repair by welding is carried out in the bottom land crack; In the process of repair by welding, by valve F
1And F
2The adjusting of opening and closing keeps the certain quantity of steam of bottom land; After the bottom land crack is repaired and is finished, with pipeline and the valve F that is connect
1And F
2Remove, and with plug with aperture K
1And K
2Stop up sealing.Adopt above-mentioned method for repairing and mending can finish repairing to the crack, satisfactory for result.
From the foregoing description as can be seen, adopt the method for repairing and mending in storage tank bottom land of the present invention crack, can repair storage tank bottom land crack in the storage tank original position, and safe and reliable, reach the repairing requirement.
Claims (2)
1, a kind of method for repairing and mending that is used for large-scale inflammable and explosive agent reservoir bottom land crack comprises the processing of settling accounts of the emptying of storage medium in the storage tank of repairing early stage and storage tank inside, it is characterized in that this method for repairing and mending adopts following steps:
Step 1: offer aperture K respectively in the both sides that bottom land need mend a split
1And K
2, offering aperture K
1And K
2The time, add water cooling;
Step 2: with aperture K
1And K
2After the tapping, connect pipeline respectively, at aperture K
1Pipeline be provided with valve F
1, at aperture K
2Pipeline be provided with valve F
2, pipeline opening K
3Manhole through storage tank is connected to the outside;
Step 3: to pipeline opening K
3Feed steam, reach valve-off F after the certain limit value to the bottom land temperature
1And F
2, repair by welding is carried out in the bottom land crack;
Step 4: in the process of repair by welding, by valve F
1And F
2The adjusting of opening and closing keeps the certain quantity of steam of bottom land;
Step 5: after the bottom land crack is repaired and finished, with pipeline and the valve F that is connect
1And F
2Remove, and with plug with aperture K
1And K
2Stop up sealing.
2, the method for repairing and mending that is used for large-scale inflammable and explosive agent reservoir bottom land crack according to claim 1 is characterized in that to pipeline opening K
3Feed steam, reaching certain limit to the bottom land temperature is 50--70 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100531859A CN100360271C (en) | 2004-07-28 | 2004-07-28 | Repairing method for crack in bottom of large inflammable and explosive medium storing tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100531859A CN100360271C (en) | 2004-07-28 | 2004-07-28 | Repairing method for crack in bottom of large inflammable and explosive medium storing tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1608794A true CN1608794A (en) | 2005-04-27 |
| CN100360271C CN100360271C (en) | 2008-01-09 |
Family
ID=34764187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100531859A Expired - Lifetime CN100360271C (en) | 2004-07-28 | 2004-07-28 | Repairing method for crack in bottom of large inflammable and explosive medium storing tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100360271C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091906A (en) * | 2010-12-22 | 2011-06-15 | 北京工业大学 | Method for repairing central slot of scraper conveyor |
| CN101332552B (en) * | 2008-07-29 | 2013-06-12 | 重庆建设摩托车股份有限公司 | Method for prolonging work life of die-casting die with chap seam |
| CN104985386A (en) * | 2015-07-09 | 2015-10-21 | 安徽淮化股份有限公司 | Gas tank leakage repair method |
| CN106493450A (en) * | 2016-11-17 | 2017-03-15 | 中国华冶科工集团有限公司 | Cleft welding method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU118184A1 (en) * | 1947-12-29 | 1957-11-30 | Н.Т. Федоров | Polishing anomaloscope |
| JPS61142186A (en) * | 1984-12-10 | 1986-06-30 | ト−ヨ−カネツ株式会社 | Method of repairing bottom of storage tank |
| JPS62113682A (en) * | 1985-11-11 | 1987-05-25 | Mitsubishi Heavy Ind Ltd | Fireproof type repair work method in oil tank |
| CN1035633A (en) * | 1988-03-11 | 1989-09-20 | 西安石油勘探仪器总厂 | New technique of repair welding for worked container of oils |
| US6378188B1 (en) * | 1999-10-26 | 2002-04-30 | Csx Transportation, Inc. | Method and apparatus for locomotive fuel tank repair |
-
2004
- 2004-07-28 CN CNB2004100531859A patent/CN100360271C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101332552B (en) * | 2008-07-29 | 2013-06-12 | 重庆建设摩托车股份有限公司 | Method for prolonging work life of die-casting die with chap seam |
| CN102091906A (en) * | 2010-12-22 | 2011-06-15 | 北京工业大学 | Method for repairing central slot of scraper conveyor |
| CN102091906B (en) * | 2010-12-22 | 2012-07-25 | 北京工业大学 | Method for repairing central slot of scraper conveyor |
| CN104985386A (en) * | 2015-07-09 | 2015-10-21 | 安徽淮化股份有限公司 | Gas tank leakage repair method |
| CN104985386B (en) * | 2015-07-09 | 2017-07-21 | 安徽淮化股份有限公司 | A kind of leakage craft leakage mending method of gas reservoir |
| CN106493450A (en) * | 2016-11-17 | 2017-03-15 | 中国华冶科工集团有限公司 | Cleft welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100360271C (en) | 2008-01-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MCC CHENGGONG CONSTRUCTION CO., LTD. Free format text: FORMER NAME: MAINTENANCE BRANCH, SHANGHAI WUYE METALLURGICAL CONSTRUCTION CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Eight, Renmin North Road, Chengdu, Sichuan, zip code: 610082 Co-patentee after: MCC Chenggong Shanghai Wuye Construction Co.,Ltd. Patentee after: MCC CHENGGONG CONSTRUCTION Co.,Ltd. Address before: Shanghai City, Baoshan District Tieli Road No. 2501 Patentee before: OVERHAUL BRANCH, SHANGHAI NO.5 METALLURGICAL CONSTRUCTION Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: CHINA MCC5 GROUP CORP., LTD. Free format text: FORMER OWNER: MCC CHENGGONG CONSTRUCTION CO., LTD. Effective date: 20110607 Owner name: MCC5 GROUP CORPORATION LIMITED (SHANGHAI) Free format text: FORMER OWNER: SHANGHAI WUYE CONSTRUCTION OF ZHONGYE CHENGGONG CO.LTD |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610082 NO. 8, SECTION 1 OF RENMIN NORTH ROAD, CHENGDU CITY, SICHUAN PROVINCE TO: 610063 NO. 199, SANSE ROAD, JINJIANG INDUSTRIAL PARK, CHENGDU CITY, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110607 Address after: 610063 No. 199, tricolor Road, Jinjiang Industrial Park, Sichuan, Chengdu, China Co-patentee after: MCC5 Group CORPORATION LIMITED (SHANGHAI) Patentee after: CHINA MCC5 GROUP Corp.,Ltd. Address before: 610082 section eight, Renmin North Road, Sichuan, Chengdu Co-patentee before: MCC Chenggong Shanghai Wuye Construction Co.,Ltd. Patentee before: MCC CHENGGONG CONSTRUCTION Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080109 |
|
| CX01 | Expiry of patent term |