CN210365302U - Large-scale oil floats top jar initiative protection system - Google Patents
Large-scale oil floats top jar initiative protection system Download PDFInfo
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- CN210365302U CN210365302U CN201921160173.4U CN201921160173U CN210365302U CN 210365302 U CN210365302 U CN 210365302U CN 201921160173 U CN201921160173 U CN 201921160173U CN 210365302 U CN210365302 U CN 210365302U
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Abstract
The utility model discloses a large-scale oil floats top jar initiative protection system, include: the tank body is internally provided with an annular space formed by a primary sealing structure and a secondary sealing structure; a gas concentration detection sensor disposed in the annular space; the nitrogen tank is arranged outside the tank body and is connected with a nitrogen injection pipe through a first pipeline, the nitrogen injection pipe is arranged in the annular space, and a conveying pump body and a first switch valve are arranged on the first pipeline; and the control box is arranged outside the tank body and is respectively and electrically connected with the gas concentration detection sensor, the delivery pump body and the first switch valve. By filling nitrogen into the annular space, the oxygen content and the combustible mixed gas content in the annular space are controlled within the specified range, the original fire hazard space is changed into an inert protection space, so that the floating roof type petroleum storage tank is not exploded and combusted, and the problem that the oil gas explosion is caused by lightning stroke, static electricity and the like easily in the annular space is solved.
Description
Technical Field
The utility model relates to a fire safety protection system technical field, more specifically the saying so relates to a large-scale oil floats top jar initiative protection system.
Background
Crude oil is a flammable and explosive hazardous product, and is stored in various ways, but a floating roof type oil storage tank is the most common storage tank at present. Because of the existence of the primary and secondary sealing devices between the floating roof edge of the floating roof type oil storage tank and the inner wall of the tank body, the annular space between the primary and secondary sealing devices is subjected to the mixture of explosive gas and oxygen for a long time, and the space belongs to an explosion danger area. The oil gas explosion in the sealed space is easily caused by factors such as lightning, static electricity generated by the storage tank, sparks and the like without artificial reasons. The fire and explosion accidents of large floating roof oil storage tanks in various countries of the world occur for many times, which causes serious casualties and property loss, and also causes large-area environmental pollution.
At present, fire fighting measures of large-scale petroleum storage tanks mainly adopt foam and water to carry out fire accident emergency rescue, and gas fire extinguishing systems are installed on large-scale oil tanks in a few developed countries, but the measures are limited to emergency treatment afterwards, and precaution is not considered.
The traditional foam fire extinguishing system has the following defects that ① the foam fire extinguishing system is started to spray foam for fire extinguishing after a fire occurs, the method is a passive emergency mode, ② sprayed foam is gathered between a tank wall and a foam weir plate and can be fully gathered within about 9 minutes, then the foam can enter a primary seal and a secondary seal to start fire extinguishing, time delay can cause large-range combustion of oil, the possibility of secondary explosion or continuous explosion at the seal position is increased, the disaster situation is expanded, ③ foam has poor liquidity to enable fire extinguishing efficiency to be low, ④ after fire extinguishing, a large amount of foam is gathered on a floating roof and is not easy to clean, the load of the floating roof is increased, and even the phenomenon of sinking roof occurs.
Therefore, the technical staff in the field needs to solve the problem that how to provide an active protection system for a large oil floating roof tank to solve the problem that the floating roof type oil storage tank is easy to be struck by lightning, static electricity and the like in the annular space to cause oil gas explosion.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a large-scale oil floats top jar initiative protection system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a large-scale oil floats a jar initiative protection system, includes:
the tank body is internally provided with a primary sealing structure and a secondary sealing structure, and an annular space is formed between the primary sealing structure and the secondary sealing structure;
a gas concentration detection sensor disposed within the annular space;
the nitrogen tank is arranged outside the tank body and is connected with a nitrogen injection pipe through a first pipeline, the nitrogen injection pipe is arranged in the annular space, and a conveying pump body and a first switch valve are arranged on the first pipeline; and
and the control box is arranged outside the tank body and is respectively electrically connected with the gas concentration detection sensor, the delivery pump body and the first switch valve.
According to the technical scheme, compare with prior art, the utility model provides a large-scale oil floats top jar initiative protection system, through gas concentration (oil gas and oxygen value) in the gas concentration detection sensor real-time detection annular space, transmit the detected value for the control box, if reach the setting value in the control box, the work of the pump body is carried in the control box then control, and control first ooff valve is opened, the nitrogen gas that is the gaseous state in the nitrogen gas jar is spout in nitrogen gas injection pipe through first pipeline transport, reduce the gas concentration in the annular space, with the dangerous control of explosion in this space at the complete range, thereby play and carry out inertization protection purpose to this annular space, it easily receives the thunderbolt at this annular space to have solved floating top formula oil storage tank, static etc. cause the problem of oil gas explosion.
Further, the method also comprises the following steps:
the pressure detection sensor is arranged in the annular space and is electrically connected with the control box;
the oil gas filtering device is arranged outside the tank body and connected with a second pipeline, the second pipeline extends into the annular space and is provided with a second switch valve, and the second switch valve is electrically connected with the control box.
When the pressure detection sensor detects that the gas pressure in the annular space is too large and reaches a preset value, the control box controls the second switch valve to be opened, so that the gas in the annular space is conveyed to the oil-gas filtering device through the second pipeline to be filtered, the pressure reduction of the annular space is realized, the safety is improved, and the released gas is filtered through the oil-gas filtering device and does not pollute the environment.
Furthermore, the first pipeline and the second pipeline respectively penetrate through the first through hole and the second through hole in the outer wall of the tank body and extend into the annular space.
Further, a first sealing plug is arranged between the first pipeline and the first through hole, and a second sealing plug is arranged between the second pipeline and the second through hole. The sealing performance of the tank body is improved, and oil gas leakage is prevented.
Further, still include the third pipeline, the third pipeline passes third through-hole on the external wall of jar to extend in the annular space, just gas concentration detection sensor with the pressure detection sensor cable all sets up in the third pipeline. The installation of the gas concentration detection sensor and the pressure detection sensor is convenient.
Further, a third sealing plug is arranged between the third pipeline and the third through hole. The sealing performance of the tank body is improved, and oil gas leakage is prevented.
Further, the nitrogen injection pipe is annularly arranged in the annular space. So that the nitrogen can quickly reach the whole annular space, and the gas concentration in the space is quickly reduced.
Further, the nitrogen gas jar first pipeline the nitrogen gas injection pipe the transport pump body with first ooff valve is two, and the symmetry sets up respectively jar body both sides. Adopt two-way air feed, can fill nitrogen gas fast in with the nitrogen gas injection pipe for nitrogen gas spouts fast, improves the inertization effect.
Furthermore, a plurality of jet holes are formed in the outer wall of the nitrogen jet pipe. Can spray nitrogen in multiple directions, thereby quickly reducing the gas concentration in the annular space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the active protection system of a large oil floating roof tank provided by the utility model.
Fig. 2-3 are enlarged schematic structural views of a part a in fig. 1.
Wherein: 1-tank body, 101-primary sealing structure, 102-secondary sealing structure, 2-annular space, 3-gas concentration detection sensor, 4-nitrogen gas tank, 5-first pipeline, 6-nitrogen gas injection pipe, 61-injection hole, 7-delivery pump body, 8-first switch valve, 9-control box, 10-pressure detection sensor, 11-oil gas filtering device, 12-second pipeline, 13-second switch valve, 14-first sealing plug, 15-second sealing plug, 16-third pipeline, and 17-third sealing plug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses large-scale oil floats top jar initiative protection system, include:
a primary sealing structure 101 and a secondary sealing structure 102 are arranged in the tank body 1, and an annular space 2 is formed between the primary sealing structure 101 and the secondary sealing structure 102 (the existing structure is not described again);
a gas concentration detection sensor 3, the gas concentration detection sensor 3 being disposed in the annular space 2;
the nitrogen tank 4 is arranged outside the tank body 1, and is connected with a nitrogen injection pipe 6 through a first pipeline 5, the nitrogen injection pipe 6 is arranged in the annular space 2, and a conveying pump body 7 and a first switch valve 8 are arranged on the first pipeline 5; and
and the control box 9 is arranged outside the tank body 1, and is respectively and electrically connected with the gas concentration detection sensor 3, the delivery pump body 7 and the first switch valve 8.
The utility model discloses still include:
the pressure detection sensor 10 is arranged in the annular space 2, and the pressure detection sensor 10 is electrically connected with the control box 9;
oil gas filter equipment 11, oil gas filter equipment 11 set up in jar body 1 outside, and be connected with second pipeline 12, and second pipeline 12 extends to annular space 2 in, and is provided with second ooff valve 13 on it, and second ooff valve 13 is connected with control box 9 electricity.
The first pipe 5 and the second pipe 12 extend into the annular space 2 through a first through hole (not shown) and a second through hole (not shown) in the outer wall of the tank 1, respectively.
A first sealing plug 14 is arranged between the first pipe 5 and the first through hole, and a second sealing plug 15 is arranged between the second pipe 12 and the second through hole.
The utility model discloses still include third pipeline 16, third pipeline 16 passes third through-hole (not marked) on the outer wall of jar body 1 and extends to annular space 2 in, and gas concentration detection sensor 3 and pressure detection sensor 10 cable all set up in third pipeline 16.
A third sealing plug 17 is arranged between the third duct 16 and the third through hole.
The nitrogen injection pipes 6 are arranged annularly in the annular space 2.
The nitrogen tank 4, the first pipeline 5, the nitrogen injection pipe 6, the conveying pump body 7 and the first switch valve 8 are two and are symmetrically arranged on two sides of the tank body 1 respectively.
The outer wall of the nitrogen gas injection pipe 6 is provided with a plurality of injection holes 61.
Compared with the prior art, the utility model has the advantages that: by filling nitrogen gas as an inerting agent into an annular space formed between the primary sealing structure and the secondary sealing structure of the floating roof tank and the tank wall, the oxygen content and the combustible mixed gas content in the annular space are controlled within a specified range, the original fire hazard space is changed into an inert protection space, so that the floating roof tank is not exploded and burnt, and the problem that oil gas explosion is easily caused by lightning stroke, static electricity and the like in the annular space of the outer floating roof type petroleum storage tank is solved.
The concrete points are as follows:
and (3) intrinsic safety: the utility model relates to an all equipment and instrument are and prevent separating device and install outside oil storage tank, by switch board remote control, and do not have any power supply line in oil storage tank, can not cause secondary disaster because of circuit fault, accomplish essential safety.
Fast and efficient: the utility model discloses the two-way ventilation that adopts can spout nitrogen gas in the shortest time, and response time is short.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The utility model provides a large-scale oil floats top jar initiative protection system which characterized in that includes:
the tank comprises a tank body (1), wherein a primary sealing structure (101) and a secondary sealing structure (102) are arranged in the tank body (1), and an annular space (2) is formed between the primary sealing structure (101) and the secondary sealing structure (102);
a gas concentration detection sensor (3), the gas concentration detection sensor (3) being disposed within the annular space (2);
the nitrogen tank (4) is arranged outside the tank body (1), and is connected with a nitrogen injection pipe (6) through a first pipeline (5), the nitrogen injection pipe (6) is arranged in the annular space (2), and a conveying pump body (7) and a first switch valve (8) are arranged on the first pipeline (5); and
the control box (9), the control box (9) sets up jar body (1) outside, and respectively with gas concentration detection sensor (3), the delivery pump body (7) and first ooff valve (8) electricity are connected.
2. The active protection system for large oil floating roof tank as claimed in claim 1, further comprising:
a pressure detection sensor (10), said pressure detection sensor (10) being arranged within said annular space (2) and being electrically connected with said control box (9);
oil gas filter equipment (11), oil gas filter equipment (11) set up jar body (1) outside, and be connected with second pipeline (12), second pipeline (12) extend to in annular space (2), and be provided with second ooff valve (13) on it, second ooff valve (13) with control box (9) electricity is connected.
3. The active protection system of a large oil floating roof tank as claimed in claim 2, characterized in that the first pipe (5) and the second pipe (12) extend into the annular space (2) through a first through hole and a second through hole on the outer wall of the tank body (1), respectively.
4. The active protection system of the large oil floating roof tank is characterized in that a first sealing plug (14) is arranged between the first pipeline (5) and the first through hole, and a second sealing plug (15) is arranged between the second pipeline (12) and the second through hole.
5. The active protection system of the large oil floating roof tank is characterized in that the active protection system further comprises a third pipeline (16), the third pipeline (16) extends into the annular space (2) through a third through hole in the outer wall of the tank body (1), and the gas concentration detection sensor (3) and the pressure detection sensor (10) are arranged in the third pipeline (16) through cables.
6. The active protection system of the large oil floating roof tank is characterized in that a third sealing plug (17) is arranged between the third pipeline (16) and the third through hole.
7. The active protection system of a large oil floating roof tank according to claim 1, characterized in that the nitrogen injection pipe (6) is annularly arranged in the annular space (2).
8. The active protection system of the large oil product floating roof tank is characterized in that the number of the nitrogen tank (4), the first pipeline (5), the nitrogen injection pipe (6), the delivery pump body (7) and the first switch valve (8) is two, and the nitrogen tank, the first pipeline, the nitrogen injection pipe, the delivery pump body and the first switch valve are respectively and symmetrically arranged on two sides of the tank body (1).
9. The active protection system of the large oil floating roof tank as claimed in any one of claims 1 to 8, wherein the outer wall of the nitrogen injection pipe (6) is provided with a plurality of injection holes (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160173.4U CN210365302U (en) | 2019-07-23 | 2019-07-23 | Large-scale oil floats top jar initiative protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921160173.4U CN210365302U (en) | 2019-07-23 | 2019-07-23 | Large-scale oil floats top jar initiative protection system |
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| Publication Number | Publication Date |
|---|---|
| CN210365302U true CN210365302U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921160173.4U Active CN210365302U (en) | 2019-07-23 | 2019-07-23 | Large-scale oil floats top jar initiative protection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626390A (en) * | 2022-12-22 | 2023-01-20 | 北斗启明（北京）节能科技服务有限公司 | Floating roof storage tank safety initiative protection optical fiber monitoring system |
-
2019
- 2019-07-23 CN CN201921160173.4U patent/CN210365302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626390A (en) * | 2022-12-22 | 2023-01-20 | 北斗启明（北京）节能科技服务有限公司 | Floating roof storage tank safety initiative protection optical fiber monitoring system |
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