CN204477686U - A kind of manhole for the flat metal double-wall storage tank of low temperature - Google Patents
A kind of manhole for the flat metal double-wall storage tank of low temperature Download PDFInfo
- Publication number
- CN204477686U CN204477686U CN201520020880.9U CN201520020880U CN204477686U CN 204477686 U CN204477686 U CN 204477686U CN 201520020880 U CN201520020880 U CN 201520020880U CN 204477686 U CN204477686 U CN 204477686U
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- CN
- China
- Prior art keywords
- manhole
- insulation material
- cold insulation
- inner canister
- storage tank
- 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 - Fee Related
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
For a manhole for low temperature flat metal double-wall storage tank inner canister maintenance and inspection, its structure to be two-layerly made up of inside and outside, and internal layer is connected with inner canister, is outerly connected with outer tank, has coupling sleeve, be filled with cold insulation material in connecting sleeve cylindrical shell between internal layer skin.When manhole is for realizing only need removing the cold insulation material of filling in manhole and need not removing whole cold insulation material in storage tank interlayer, open manhole cover, maintenance and inspection are carried out to the flat storage tank inner canister of low temperature, thus significantly shortens the maintenance and inspection cycle, reduce workload save maintenance expenses.
Description
Technical field
The utility model relates to a kind of structure of equipment, is mainly used in the maintenance and inspection of the low temperature flat metal double-wall storage tank inner canister of interlayer band cold insulation material.
Background technique
At present, for the flat metal double-wall storage tank of low temperature of storing cryogenic fluids (liquid oxygen, liquid nitrogen, liquid argon etc.), its inner canister operating temperature, lower than-100 DEG C, even can reach-196 DEG C, and storage tank inner canister is for storing cryogenic media, outer tank is Cold-keeping Layer, interlayer is filled with the cold insulation heat insulation material of powder-type, if storage tank inner canister breaks down, when needing repairing, then must remove whole cold insulation material in storage tank interlayer, then maintenance and inspection are carried out to storage tank inner canister.
Summary of the invention
The technical problem to be solved in the present invention is: because the cold insulation material in storage tank interlayer is filled in storage tank interlayer completely, and cold insulation material consumption is large, to remove whole cold insulation material in storage tank interlayer, carry out maintenance and inspection to storage tank inner canister again, then the required activity duration is long, workload is large and costly.
The technological scheme that the utility model adopts for its technical problem of solution is: in flat double-wall storage tank, design and installation is used for the manhole its inner canister being carried out to maintenance and inspection, achieve the cold insulation material that only need remove and fill in manhole and whole cold insulation material in storage tank interlayer need not be removed, just maintenance and inspection can be carried out to storage tank inner canister, the cold that this structure has also blocked inner canister is passed to outer tank by manhole, ensures the safety of outer tank.Its concrete structure is: inner canister manhole cylindrical shell and inner canister tank skin are welded to connect, inner canister manhole cover is connected with inner canister manhole barrel soldering, inner side cold insulation material is wrapped in outside inner canister manhole cylindrical shell, coupling sleeve is enclosed within outside the cold insulation material of inner side, outside cold insulation material is wrapped in outside coupling sleeve, outer tank manhole cylindrical shell and outer tank tank skin are welded to connect, outer tank manhole barrel jacket is outside the cold insulation material of outside, cold insulation material is filled in coupling sleeve, outer tank manhole cover and outer tank manhole cylindrical shell are that bolt is connected, and adopt seal ring to seal.
The beneficial effects of the utility model are: manhole structure is simple, is convenient to making and installation.And the ratio of the cold insulation material amount in the cold insulation material amount that its inside is filled and whole storage tank interlayer is very little.Only need remove the cold insulation material of manhole sleeve inner, open manhole cover, just can carry out maintenance and inspection to storage tank inner canister, significantly can shorten the maintenance and inspection cycle, reduce workload and save maintenance expenses.
Accompanying drawing explanation
It is structural representation of the present utility model in Fig. 1, number concrete name shown in figure to be called: 1. outer tank manhole cover, 2. seal ring, 3. bolt, nut, 4. outer tank manhole cylindrical shell, 5. cold insulation material outside, 6. coupling sleeve, cold insulation material 7., 8. inner canister manhole cylindrical shell, 9. inner canister manhole cover, 10. cold insulation material.
Embodiment
In FIG, inner canister manhole cylindrical shell (8) and inner canister tank skin are welded to connect, inner canister manhole cover (9) and inner canister manhole cylindrical shell (8) are welded to connect, inner side cold insulation material (7) is tightly wrapped in inner canister manhole cylindrical shell (8) outside, coupling sleeve (6) is enclosed within outside, inner side cold insulation material (7), outside cold insulation material (5) is tightly wrapped in the outside of coupling sleeve (6), outer tank manhole cylindrical shell (4) is enclosed within outside, outside cold insulation material (5), outer tank manhole cylindrical shell (4) and outer tank tank skin are welded to connect, outer tank manhole cover (1) with outer tank manhole cylindrical shell (4) for bolt is connected, seal ring (2) is arranged between outer tank manhole cover (1) and outer tank manhole cylindrical shell (4), bolt, nut (3) is the connection fastening piece between outer tank manhole cover (1) and outer tank manhole cylindrical shell (4), cold insulation material (10) is filled with in the space of coupling sleeve (6).
Claims (1)
1. a manhole for the flat metal double-wall storage tank of low temperature, for the maintenance and inspection of flat metal double-wall storage tank inner canister, is characterized in that: it is made up of inside and outside double-layer structure, and internal layer is connected with inner canister, and skin is connected with outer tank, and there are cold insulation material and coupling sleeve in centre; Concrete structure and Placement are: inner canister manhole cylindrical shell and inner canister tank skin are welded to connect, inner canister manhole cover is connected with inner canister manhole barrel soldering, inner side cold insulation material is wrapped in outside inner canister manhole cylindrical shell, coupling sleeve is outside the cold insulation material of inner side, outside cold insulation material is wrapped in outside coupling sleeve, outer tank manhole cylindrical shell and outer tank tank skin are welded to connect, outer tank manhole cylindrical shell is outside the cold insulation material of outside, cold insulation material is filled in coupling sleeve, outer tank manhole cover is connected with outer tank manhole cylindrical shell bolt, and adopts seal ring to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520020880.9U CN204477686U (en) | 2015-01-13 | 2015-01-13 | A kind of manhole for the flat metal double-wall storage tank of low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520020880.9U CN204477686U (en) | 2015-01-13 | 2015-01-13 | A kind of manhole for the flat metal double-wall storage tank of low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477686U true CN204477686U (en) | 2015-07-15 |
Family
ID=53633477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520020880.9U Expired - Fee Related CN204477686U (en) | 2015-01-13 | 2015-01-13 | A kind of manhole for the flat metal double-wall storage tank of low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268674A (en) * | 2017-07-18 | 2019-01-25 | 张家港中集圣达因低温装备有限公司 | Low temperature atmospheric tank and its manhole structure |
| CN110056761A (en) * | 2018-01-19 | 2019-07-26 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum thermal insulation low temperature storage tank with the manhole device |
-
2015
- 2015-01-13 CN CN201520020880.9U patent/CN204477686U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268674A (en) * | 2017-07-18 | 2019-01-25 | 张家港中集圣达因低温装备有限公司 | Low temperature atmospheric tank and its manhole structure |
| CN110056761A (en) * | 2018-01-19 | 2019-07-26 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum thermal insulation low temperature storage tank with the manhole device |
| CN110056761B (en) * | 2018-01-19 | 2024-06-04 | 张家港中集圣达因低温装备有限公司 | Manhole device and vacuum insulation low-temperature storage tank with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20220113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |