CN203410864U - Active protection structure for primary seal space of external floating roof type oil storage tank - Google Patents
Active protection structure for primary seal space of external floating roof type oil storage tank Download PDFInfo
- Publication number
- CN203410864U CN203410864U CN201320458262.3U CN201320458262U CN203410864U CN 203410864 U CN203410864 U CN 203410864U CN 201320458262 U CN201320458262 U CN 201320458262U CN 203410864 U CN203410864 U CN 203410864U
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- China
- Prior art keywords
- floating roof
- storage tank
- secondary seal
- oil gas
- primary seal
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- Withdrawn - After Issue
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Abstract
The utility model discloses an active protection structure for a primary seal space of an external floating roof type oil storage tank. The external floating roof type oil storage tank comprises a tank wall and an external floating roof arranged in the oil storage tank, wherein the primary seal space and a secondary seal space are formed between the tank wall and the external floating roof by a primary seal oil-gas diaphragm and a secondary seal oil-gas diaphragm; a secondary seal baffle is arranged on the outer side of the secondary seal oil-gas diaphragm; the primary seal oil-gas diaphragm, the secondary seal oil-gas diaphragm and the secondary seal baffle are all fixedly connected with the external floating roof through connecting bolts; one ends of the connecting bolts are arranged in the primary seal space; the connecting bolts are of hollow structures; the primary seal space is communicated with an inert gas generation device or/and an oil-gas sampling device through the hollow connecting bolts. According to the active protection structure, an inert protection medium and an oil gas sample can be conveyed into the primary seal space without changing an original structure of the oil storage tank and performing additional machining.
Description
Technical field
The utility model belongs to security against fire technical field, is specifically related to the active fail-safe structure in a kind of outer floating roof formula petroleum storage tank once sealing space.
Background technology
At present, the outer floating roof large-scale petroleum storing tank of domestic employing mechanical seal mode, because there is certain density oil vapour and oxygen in the sealing position of its floating roof, this position at thunderstorm season because thunderbolt very easily causes explosive combustion that serious accident occurs.If by pipeline by inactive protect medium (as N
2) be injected into once with secondary seal space in, its oxygen and gas concentration are down in safe range, can realize the anti-lightning strike safety precaution to storage tank.But the existing petroleum storage tank in use is due to its high demand to safety, do not allow to carry out the machine up operations such as similar boring, cutting in tank body and floating roof, therefore, on the basis of existing outer floating roof petroleum storage tank structure, active protection method for outer floating roof large-scale petroleum storing tank only can carry out active protection for the seal cavity between first and second sealing, and cannot carry out active protection to once sealing space.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence; provide a kind of and do not changed original structure; do not need to carry out extra machine up yet, just can be to carrying inactive protect medium in once sealing space or carrying out the active fail-safe structure in the outer floating roof formula petroleum storage tank once sealing space of oil gas sampling.
The technical scheme of the utility model technology is achieved in that the active fail-safe structure in a kind of outer floating roof formula petroleum storage tank once sealing space, described outer floating roof formula petroleum storage tank comprises tank skin and is arranged on the outer floating roof in petroleum storage tank, between described tank skin and outer floating roof, by once sealing oil gas barrier film and secondary seal oil gas barrier film, form one, secondary seal space, in described secondary seal oil gas barrier film arranged outside, there is secondary seal baffle plate, it is characterized in that: described once sealing oil gas barrier film, secondary seal oil gas barrier film is all fixedly connected with outer floating roof by tie bolt with secondary seal baffle plate, one end of described tie bolt is placed in once sealing space, described tie bolt is hollow structure, the tie bolt of described once sealing space by hollow structure with inert gas generator or/and oil gas sampling setup be communicated with.
The utility model is by replacing with the tie bolt of hollow structure for the tie bolt of fixed connection and sealing oil gas barrier film and closing plate in existing outer floating roof large-scale petroleum storing tank structure; do not changing petroleum storage tank original structure; also do not carry out in the situation of extra machine up; both fixed oil gas barrier film and sealing baffle, and realized again by the tie bolt of hollow structure and carried inactive protect medium and oil gas to sample in once sealing space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 is tank skin, 2 is outer floating roof, and 3 is once sealing oil gas barrier film, and 4 is secondary seal oil gas barrier film, and 5 is once sealing space, and 6 is secondary seal space, and 7 is secondary seal baffle plate, and 8 is tie bolt, 9 is leaf spring.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model technology is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the active fail-safe structure in a kind of outer floating roof formula petroleum storage tank once sealing space, described outer floating roof formula petroleum storage tank comprises tank skin 1 and is arranged on the outer floating roof 2 in petroleum storage tank, between described tank skin 1 and outer floating roof 2, by once sealing oil gas barrier film 3 and secondary seal oil gas barrier film 4, form one, secondary seal space 5, 6, in described secondary seal oil gas barrier film 4 arranged outside, there is secondary seal baffle plate 7, described once sealing oil gas barrier film 3, secondary seal oil gas barrier film 4 is all fixedly connected with outer floating roof 2 by tie bolt 8 with secondary seal baffle plate 7, one end of described tie bolt 8 is placed in once sealing space 5, described tie bolt 8 is hollow structure, the tie bolt 8 of described once sealing space 5 by hollow structure with inert gas generator or/and oil gas sampling setup be communicated with.
Wherein, in once sealing space 5, between pasta and once sealing oil gas barrier film 3, be provided with leaf spring 9.
Adopt structure of the present utility model; do not changing petroleum storage tank original structure; also do not carry out in the situation of extra machine up; both fixed oil gas barrier film and sealing baffle, realized again tie bolt by hollow structure with special angle to the function of carrying inactive protect medium and carrying out oil gas sampling in once sealing space.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the active fail-safe structure in an outer floating roof formula petroleum storage tank once sealing space, described outer floating roof formula petroleum storage tank comprises tank skin (1) and is arranged on the outer floating roof (2) in petroleum storage tank, between described tank skin (1) and outer floating roof (2), by once sealing oil gas barrier film (3) and secondary seal oil gas barrier film (4), form one, secondary seal space (5, 6), in described secondary seal oil gas barrier film (4) arranged outside, there is secondary seal baffle plate (7), it is characterized in that: described once sealing oil gas barrier film (3), secondary seal oil gas barrier film (4) is all fixedly connected with outer floating roof (2) by tie bolt (8) with secondary seal baffle plate (7), one end of described tie bolt (8) is placed in once sealing space (5), described tie bolt (8) is hollow structure, the tie bolt (8) of described once sealing space (5) by hollow structure with inert gas generator or/and oil gas sampling setup be communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458262.3U CN203410864U (en) | 2013-07-30 | 2013-07-30 | Active protection structure for primary seal space of external floating roof type oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320458262.3U CN203410864U (en) | 2013-07-30 | 2013-07-30 | Active protection structure for primary seal space of external floating roof type oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203410864U true CN203410864U (en) | 2014-01-29 |
Family
ID=49973772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320458262.3U Withdrawn - After Issue CN203410864U (en) | 2013-07-30 | 2013-07-30 | Active protection structure for primary seal space of external floating roof type oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203410864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350834A (en) * | 2013-07-30 | 2013-10-16 | 四川威特龙消防设备有限公司 | Active protection structure for primary sealing space of external floating roof type oil storage tank |
| CN105236038A (en) * | 2015-10-21 | 2016-01-13 | 中国石油化工股份有限公司 | Combined type mechanical seal device and mounting method thereof |
| CN107215581A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Totally enclosed type floating roof tank |
-
2013
- 2013-07-30 CN CN201320458262.3U patent/CN203410864U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350834A (en) * | 2013-07-30 | 2013-10-16 | 四川威特龙消防设备有限公司 | Active protection structure for primary sealing space of external floating roof type oil storage tank |
| CN105236038A (en) * | 2015-10-21 | 2016-01-13 | 中国石油化工股份有限公司 | Combined type mechanical seal device and mounting method thereof |
| CN107215581A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Totally enclosed type floating roof tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140129 Effective date of abandoning: 20141217 |
|
| RGAV | Abandon patent right to avoid regrant |