CN210057208U - Oil tank fire extinguishing system - Google Patents
Oil tank fire extinguishing system Download PDFInfo
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- CN210057208U CN210057208U CN201920458550.6U CN201920458550U CN210057208U CN 210057208 U CN210057208 U CN 210057208U CN 201920458550 U CN201920458550 U CN 201920458550U CN 210057208 U CN210057208 U CN 210057208U
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- fire extinguishing
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- oil tank
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Abstract
The utility model discloses an oil tank fire extinguishing system. The system is provided with a water tank (1), a high-pressure pump set (2), a foam liquid storage tank (4), a fire extinguishing terminal, a branch pipeline (6) and a main pipeline (3), wherein the branch pipeline is sequentially provided with a first electromagnetic valve (7), a proportional mixer (5) and a foam generator (21) from an inlet to an outlet. The proportional mixer is connected with the foam liquid storage tank, and the inlet of the high-pressure pump set is connected with the outlet of the water tank through a pipeline. The inlet of the main pipeline is connected with the outlet of the high-pressure pump group, the outlet of the main pipeline is connected with the inlet of a hose (22), and the outlet of the hose is connected with a fire extinguishing terminal. The main pipeline is provided with a second electromagnetic valve (8), the fire extinguishing terminal is provided with a floating ball (15), and the fire extinguishing terminal and the oil tank (16) are provided with fire extinguishing terminal lifting guide devices. The utility model discloses the fire extinguishing of oil tank in trades such as mainly used petrochemical.
Description
Technical Field
The utility model relates to an oil tank fire extinguishing systems.
Background
In recent years, oil tank fire accidents in the industries of petrochemical industry and the like occur at times, and at present, a foam fire extinguishing system is mostly adopted for fire extinguishing. The fire extinguishing terminal of the foam fire extinguishing system is fixed on the upper part of the oil tank and can not lift. Along with the use of oil in the oil tank, the oil level can constantly descend to make the distance of terminal and oil level of putting out a fire bigger and bigger. When a fire breaks out, the foam can not act on the fire source quickly, and the fire extinguishing effect is influenced. In addition, the fire can be extinguished by water mist when the fire is small, but the existing system can only extinguish fire by using foam, and the foam can generate secondary pollution to the environment and oil products.
Disclosure of Invention
The utility model aims at providing an oil tank fire extinguishing systems to solve the problem that the fire extinguishing terminal that current oil tank fire extinguishing systems exists can not go up and down, can only use the foam to put out a fire and cause.
In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides an oil tank fire extinguishing system, is equipped with water tank, high-pressure pump package, foam liquid storage tank, fire extinguishing terminal, branch pipeline, is equipped with first solenoid valve, proportioner, foam generator from the entry to the export in proper order on the branch pipeline, and proportioner links to each other with the foam liquid storage tank, and the entry of high-pressure pump package passes through the pipeline and links to each other its characterized in that with the export of water tank: the oil tank fire extinguishing system is provided with a main pipeline, an inlet of the main pipeline is connected with an outlet of the high-pressure pump set, an outlet of the main pipeline is connected with an inlet of a hose, an outlet of the hose is connected with a fire extinguishing terminal, the main pipeline is provided with a second electromagnetic valve, an inlet of a branch pipeline is connected to the main pipeline between an inlet of the main pipeline and the second electromagnetic valve, an outlet of the branch pipeline is connected to the main pipeline between an outlet of the main pipeline and the second electromagnetic valve, a floating ball is arranged on the fire extinguishing terminal, and the fire extinguishing terminal and the oil tank are provided with.
Adopt the utility model discloses, following beneficial effect has: (1) the floating ball floats on the oil level in the oil tank, and the fire extinguishing terminal is supported by the floating ball and is positioned above the oil level, and ascends and descends along with the ascending and descending of the oil level and is always close to the oil level. When a fire disaster occurs, the fire extinguishing terminal sprays water mist or foam, the water mist or foam can act on a fire source quickly, and the fire extinguishing effect is good. (2) Can choose water smoke to put out a fire or foam according to the size of conflagration and put out a fire (see the explanation of this specification embodiment part in detail), two kinds of modes of putting out a fire make the utility model discloses a flexibility of use is higher. When a small fire at the initial stage is extinguished by using water mist, no foam is used, so that the problem of secondary pollution of the foam to the environment and oil products is solved.
The utility model discloses the fire extinguishing of oil tank in trades such as mainly used petrochemical.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The drawings and detailed description do not limit the scope of the invention as claimed.
Drawings
Fig. 1 is a schematic view of the oil tank fire extinguishing system of the present invention, and fig. 1 also shows an oil tank.
Fig. 2 is a sectional view (enlarged) taken along line a-a in fig. 1.
In fig. 1 and 2, the same reference numerals denote the same technical features.
Detailed Description
Referring to fig. 1 and 2, the oil tank fire extinguishing system of the present invention is provided with a water tank 1, a high pressure pump group 2, a foam liquid storage tank 4, a fire extinguishing terminal, and a branch pipe line 6. The branch pipeline 6 is provided with a first electromagnetic valve 7, a proportional mixer 5 and a foam generator 21 in sequence from an inlet to an outlet, the proportional mixer 5 is connected with the foam liquid storage tank 4, and the inlet of the high-pressure pump unit 2 is connected with the outlet of the water tank 1 through a pipeline. The oil tank fire extinguishing system is provided with a main pipeline 3, the inlet of the main pipeline 3 is connected with the outlet of the high-pressure pump set 2, the outlet of the main pipeline 3 is connected with the inlet of a hose 22, and the outlet of the hose 22 is connected with a fire extinguishing terminal. The main pipeline 3 is provided with a second electromagnetic valve 8. The branch pipeline 6 is connected with the main pipeline 3 in parallel; the inlet of the branch pipeline 6 is connected to the main pipeline 3 between the inlet of the main pipeline 3 and the second electromagnetic valve 8, and the outlet of the branch pipeline 6 is connected to the main pipeline 3 between the outlet of the main pipeline 3 and the second electromagnetic valve 8. A plurality of floating balls 15 are arranged on the fire extinguishing terminal, and fire extinguishing terminal lifting guide devices are arranged on the fire extinguishing terminal and the oil tank 16. The effect of the fire extinguishing terminal lifting guide device is that the fire extinguishing terminal can only vertically lift and cannot rotate, and the stability of the fire extinguishing terminal is guaranteed.
Referring to fig. 1 and 2, a fire extinguishing terminal of the present invention includes a loop pipe 11 and a buffer collector 9 located at the center of the loop pipe 11, the loop pipe 11 having a circular ring shape. The buffer container 9 is an empty cylinder provided with an inlet and several outlets, the outlet of the hose 22 being connected to the inlet of the buffer container 9. The outlet of the buffer collector 9 communicates with a loop 11 via several ducts 10. The lower part of the ring pipe 11 is provided with a plurality of spray heads 14, the floating ball 15 is also arranged at the lower part of the ring pipe 11, and the spray heads 14 and the floating ball 15 are uniformly distributed along the circumferential direction of the ring pipe 11. The spray heads 14 are known in the art as open spray heads that spray various fire fighting foams and water sprays, the number of which is selected based on the cross-sectional area of the tank 16. The floating ball 15 is a hollow stainless steel ball.
Referring to fig. 1 and 2, the fire extinguishing terminal lifting guide device of the present invention includes a guide block 12 disposed outside the loop pipe 11 and a guide rail 13 vertically disposed on the inner side wall of the oil tank 16, wherein the guide rail 13 is disposed from the upper edge of the inner side wall of the oil tank 16 to the bottom of the oil tank. The guide rail 13 is provided in a set with the guide block 12. The end face of the guide block 12 facing the inner side wall of the oil tank 16 is vertically provided with a sliding groove, and the guide block 12 can vertically slide along the guide rail 13 through the sliding groove, so that the fire extinguishing terminal can vertically lift. The contact part of the sliding chute and the guide rail 13 is in clearance fit. The guide rails 13 and the guide blocks 12 are generally arranged in 3-4 groups and are uniformly distributed on the inner side wall of the oil tank 16 and the ring pipe 11 along the circumferential direction. A floating ball 15 is provided at a position corresponding to one guide block 12.
The high-pressure pump unit 2 is generally a plunger pump unit, and the outlet pressure of the high-pressure pump unit is generally 3.5-10 MPa (the pressure mentioned in the invention is gauge pressure). The utility model discloses an optimal scheme is, is equipped with moisturizing pump 17 on the pipeline between 2 entrys of high-pressure pump package and the 1 export of water tank. The water replenishing pump 17 supplies water for the high-pressure pump set 2, and the water supply efficiency of the high-pressure pump set 2 can be improved.
A level transmitter 18 is installed in the water tank 1 to monitor the change of the water level in the water tank 1 in real time. The inlet of the water tank 1 is connected with the outlet of a third electromagnetic valve 19, and the inlet of the third electromagnetic valve 19 is connected with a municipal water supply network through a pipeline. The first solenoid valve 7, the second solenoid valve 8 and the third solenoid valve 19 are normally closed solenoid valves, and are respectively arranged in the corresponding control cabinets and operated in the control cabinets.
The tank fire extinguishing system is provided with a control device 20, and the control device 20 may be any of various control devices known in the art, such as a Programmable Logic Controller (PLC). The control device 20 is connected with the first electromagnetic valve 7, the second electromagnetic valve 8, the third electromagnetic valve 19, the high-pressure pump set 2, the water replenishing pump 17, the proportioner 5, the foam generator 21 and the liquid level transmitter 18 through signal lines.
The valve bodies of the first solenoid valve 7, the second solenoid valve 8 and the third solenoid valve 19 are all made of 304 or 316 stainless steel. The hose 22 can be a high-pressure hose with pressure resistance of 10-15 MPa. The other main components and pipelines (such as the ring pipe 11, the main pipeline 3 and the branch pipelines 6) of the utility model are generally made of 304, 316 stainless steel or zinc-plated carbon steel. The utility model discloses the connection between relevant part, the pipeline can adopt threaded connection, welding, flange joint etc..
In fig. 1 and 2, the remaining components and pipelines except the oil tank 16 belong to the oil tank fire extinguishing system of the present invention.
The utility model discloses when using, floater 15 floats on the oil level in oil tank 16, and the terminal of putting out a fire is in the oil level top under floater 15 supports to go up and down along with the lift of oil level, be close to the oil level all the time. When an initial minor fire occurs, only water mist is needed to extinguish the fire and foam is not needed to extinguish the fire. At this time, the water replenishing pump 17, the high-pressure pump group 2, and the second electromagnetic valve 8 are opened by the control device 20 (the first electromagnetic valve 7, the proportioner 5, and the foam generator 21 are closed). The water supplementing pump 17 and the high-pressure pump set 2 pump water from the water tank 1 and pressurize, the high-pressure water enters the buffer collector 9 through the main pipeline 3 and the hose 22, then enters the ring pipe 11 through the conveying pipe 10, and finally is sprayed onto the oil surface from the spray head 14 in the form of water mist, so as to quickly extinguish fire.
When a later-period large fire occurs, foam is needed for extinguishing the fire. At this time, the water replenishment pump 17, the high-pressure pump group 2, the first electromagnetic valve 7, the proportioner 5 and the foam generator 21 are opened by the control device 20 (the second electromagnetic valve 8 is closed). The water supplementing pump 17 and the high-pressure pump set 2 pump water from the water tank 1 and pressurize the water, and high-pressure water enters the foam generator 21 through the main pipeline 3 and the branch pipeline 6 and contacts with foam liquid entering the foam generator 21 from the foam liquid storage tank 4 to form foam. The foam enters the buffer collector 9 through the hose 22 and enters the ring pipe 11 through the conveying pipe 10, and is finally sprayed onto the oil surface from the spray head 14 in the form of high-pressure jet flow, so that the oil surface is quickly covered and the fire is quickly extinguished.
The liquid level transmitter 18 in the water tank 1 monitors the change of the water level in the water tank 1 in real time and feeds back the detection signal to the control device 20. When water needs to be supplemented to the water tank 1, the third electromagnetic valve 19 is opened through the control device 20 to supplement water to the water tank 1; the third solenoid valve 19 is closed when water replenishment is not required.
The present invention has been described in detail with reference to the accompanying drawings and the detailed description. It will be apparent to those skilled in the art that modifications may be made in the embodiments described herein, and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an oil tank fire extinguishing system, is equipped with water tank (1), high-pressure pump package (2), foam liquid storage tank (4), fire extinguishing terminal, branch pipeline (6), is equipped with first solenoid valve (7), proportioner (5), foam generator (21) from the entry to the export in proper order on branch pipeline (6), and proportioner (5) link to each other with foam liquid storage tank (4), and the entry of high-pressure pump package (2) passes through the pipeline and links to each other with the export of water tank (1), its characterized in that: oil tank fire extinguishing system is equipped with main line (3), the entry of main line (3) links to each other with the export of high-pressure pump package (2), the export of main line (3) links to each other with the entry of hose (22), the export of hose (22) links to each other with the terminal of putting out a fire, be equipped with second solenoid valve (8) on main line (3), the access connection of branch pipe way (6) is on main line (3) between main line (3) entry and second solenoid valve (8), the exit linkage of branch pipe way (6) is on main line (3) between main line (3) export and second solenoid valve (8), be equipped with floater (15) on the terminal of putting out a fire, be equipped with the terminal of putting out a fire lift guiding device on the terminal of putting out a fire and oil tank (16).
2. The tank fire suppression system of claim 1, wherein: the fire extinguishing terminal comprises a circular pipe (11) and a buffering collector (9) located in the center of the circular pipe (11), the buffering collector (9) is provided with an inlet and an outlet, the outlet of a hose (22) is connected with the inlet of the buffering collector (9), the outlet of the buffering collector (9) is communicated with the circular pipe (11) through a conveying pipe (10), a spray head (14) is arranged on the lower portion of the circular pipe (11), and a floating ball (15) is also arranged on the lower portion of the circular pipe (11).
3. The tank fire suppression system of claim 2, wherein: the fire extinguishing terminal lifting guide device comprises a guide block (12) arranged on the outer side of an annular pipe (11) and a guide rail (13) vertically arranged on the inner side wall of an oil tank (16), the guide rail (13) and the guide block (12) are arranged in groups, a sliding groove is vertically formed in the end face, facing the inner side wall of the oil tank (16), of the guide block (12), and the guide block (12) can vertically slide along the guide rail (13) through the sliding groove.
4. The tank fire suppression system of claim 3, wherein: 3-4 groups of guide rails (13) and guide blocks (12) are arranged and are uniformly distributed on the inner side wall of the oil tank (16) and the ring pipe (11) along the circumferential direction.
5. A tank fire suppression system as claimed in claim 1 or 2 or 3, wherein: a water replenishing pump (17) is arranged on a pipeline between the inlet of the high-pressure pump set (2) and the outlet of the water tank (1).
6. The tank fire suppression system of claim 1, wherein: the oil tank fire extinguishing system is provided with a control device (20), and the control device (20) is connected with a first electromagnetic valve (7), a second electromagnetic valve (8), a high-pressure pump group (2), a proportional mixer (5) and a foam generator (21) through signal lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920458550.6U CN210057208U (en) | 2019-04-08 | 2019-04-08 | Oil tank fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920458550.6U CN210057208U (en) | 2019-04-08 | 2019-04-08 | Oil tank fire extinguishing system |
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| Publication Number | Publication Date |
|---|---|
| CN210057208U true CN210057208U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920458550.6U Active CN210057208U (en) | 2019-04-08 | 2019-04-08 | Oil tank fire extinguishing system |
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| CN (1) | CN210057208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619635A (en) * | 2018-05-09 | 2018-10-09 | 中国石油大学(北京) | Compressed-air foam intelligent fire device for outer floating roof crude oil storage tank |
| CN114291445A (en) * | 2022-01-12 | 2022-04-08 | 西南石油大学 | Cooling and heat insulating system of oil tank |
-
2019
- 2019-04-08 CN CN201920458550.6U patent/CN210057208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619635A (en) * | 2018-05-09 | 2018-10-09 | 中国石油大学(北京) | Compressed-air foam intelligent fire device for outer floating roof crude oil storage tank |
| CN114291445A (en) * | 2022-01-12 | 2022-04-08 | 西南石油大学 | Cooling and heat insulating system of oil tank |
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