JPS6246430B2 - - Google Patents
Info
- Publication number
- JPS6246430B2 JPS6246430B2 JP56020106A JP2010681A JPS6246430B2 JP S6246430 B2 JPS6246430 B2 JP S6246430B2 JP 56020106 A JP56020106 A JP 56020106A JP 2010681 A JP2010681 A JP 2010681A JP S6246430 B2 JPS6246430 B2 JP S6246430B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- tank
- lid
- manhole
- cover
- 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.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 35
- 239000011261 inert gas Substances 0.000 description 13
- 238000007689 inspection Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020106A JPS57142888A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56020106A JPS57142888A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57142888A JPS57142888A (en) | 1982-09-03 |
| JPS6246430B2 true JPS6246430B2 (US07368563-20080506-C00056.png) | 1987-10-02 |
Family
ID=12017854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56020106A Granted JPS57142888A (en) | 1981-02-16 | 1981-02-16 | Method of opening manhole for tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57142888A (US07368563-20080506-C00056.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01108261U (US07368563-20080506-C00056.png) * | 1988-01-18 | 1989-07-21 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6333294A (ja) * | 1986-07-22 | 1988-02-12 | 株式会社 富永製作所 | 危険物貯蔵用地下タンクのマンホ−ル加工方法 |
| CN1299817C (zh) | 2001-12-06 | 2007-02-14 | 三菱化学株式会社 | 氧化反应器和(甲基)丙烯酸类的制备方法 |
| JPWO2023229008A1 (US07368563-20080506-C00056.png) * | 2022-05-27 | 2023-11-30 |
-
1981
- 1981-02-16 JP JP56020106A patent/JPS57142888A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01108261U (US07368563-20080506-C00056.png) * | 1988-01-18 | 1989-07-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57142888A (en) | 1982-09-03 |
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