CN109615998B - Large-scale storage tank wall flowing fire simulation device and method - Google Patents
Large-scale storage tank wall flowing fire simulation device and method Download PDFInfo
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- CN109615998B CN109615998B CN201811358370.7A CN201811358370A CN109615998B CN 109615998 B CN109615998 B CN 109615998B CN 201811358370 A CN201811358370 A CN 201811358370A CN 109615998 B CN109615998 B CN 109615998B
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Abstract
The invention belongs to the technical field of storage tank fire simulation, and particularly relates to a large-scale storage tank wall flowing fire simulation device and a large-scale storage tank wall flowing fire simulation method. A fire simulation device for fire flowing of a large-scale storage tank wall comprises a steel fire flowing groove arranged on the wall of the storage tank, a liquid distribution system arranged on the top of the wall of the storage tank, and an ignition system arranged on the top of the fire flowing groove. The invention provides a tank wall fire running simulation device and a simulation test method based on the background of improving the levels of practical training, drilling and technical competition of fire fighting and emergency aid, and the environment-friendly fuel is adopted to simulate burning flame, so that the device and the method have important significance for researching the scene of the tank wall fire running and improving the rescue efficiency and safety.
Description
Technical Field
The invention belongs to the technical field of storage tank fire simulation, and particularly relates to a large-scale storage tank wall flowing fire simulation device and a large-scale storage tank wall flowing fire simulation method.
Background
The fire-fighting work is an important component of national economy and social development, is an indispensable guarantee condition for developing socialist market economy, and is directly related to the safety of people's lives and properties and the stability of society.
In recent years, the total amount of petroleum and chemical industries in China is rapidly expanded, the petrochemical industry is one of the basic industries and the pillar industries of national economic development, but the petrochemical industry is extremely dangerous, most of raw materials, intermediate products and products are flammable, explosive, toxic and harmful chemicals, the production process is complex, unsafe factors such as high temperature, high pressure, deep cooling and the like exist, and accidents are easy to happen. In recent years, a plurality of petrochemical enterprises in China have serious fire and explosion accidents, which all cause particularly serious casualties, property loss and environmental pollution, and generate great social and even international influence.
In these accidents, the problems of incapability of emergency treatment on site, insufficient personnel training, insufficient fire fighting force and the like are mostly exposed. In addition, on-site emergency rescue personnel cannot know the characteristics of the boiling fire of the crude oil storage tank, the estimation on the affected area of the accident is insufficient, and the great personnel and property loss in the rescue process is also caused.
Different conditions of fire rescue operation of a large crude oil storage tank are summarized, and the following defects exist in the technical field of storage tank fire rescue:
(1) in a storage tank fire, crude oil or other combustible liquid flows to the ground along the tank wall from the top of the storage tank, so that large-area flowing fire occurs on the tank wall of the storage tank, and the activity rule and the combustion scale of the flowing fire are difficult to accurately evaluate;
(2) the conventional fire scene simulation process usually adopts heavy hydrocarbons such as diesel oil as fuel, and causes serious pollution to the environment during combustion.
Disclosure of Invention
The invention aims to provide a device and a method for simulating a fire disaster caused by flowing fire on the wall of a large storage tank, aiming at the problems in the prior art. The invention provides a tank wall fire running simulation device and a simulation test method based on the background of improving the levels of practical training, drilling and technical competition of fire fighting and emergency aid, and the environment-friendly fuel is adopted to simulate burning flame, so that the device and the method have important significance for researching the scene of the tank wall fire running and improving the rescue efficiency and safety.
The technical scheme of the invention is as follows:
a fire simulation device for fire flowing of a large-scale storage tank wall comprises a steel fire flowing groove arranged on the wall of the storage tank, a liquid distribution system arranged on the top of the wall of the storage tank, and an ignition system arranged on the top of the fire flowing groove.
The fire dripping groove is fixed on the wall of the storage tank through a supporting seat and comprises a plurality of bottom plates parallel to the wall of the storage tank, a first side plate and a second side plate perpendicular to the bottom plates, the bottom plates are sequentially connected from top to bottom, one side of each of the first side plate and the second side plate, which is close to the wall of the tank, is fixedly connected with two edges of each bottom plate, and the length of each bottom plate sequentially increases from top to bottom to form a trapezoid shape.
The supporting seats are provided with a plurality of supporting seats which are longitudinally and symmetrically distributed on two sides of the bottom plate in two rows, the supporting seats on the same side are distributed on the same straight line, the first side plate is fixedly connected with the supporting seats on the same side, and the second side plate is fixedly connected with the supporting seats on the same side.
A baffle plate vertical to the bottom plate is fixedly arranged below each bottom plate; the length of the baffle is equal to the distance between the two corresponding supporting seats symmetrically arranged in the horizontal direction, the baffle is provided with a plurality of round holes, the outer edge of the horizontal plane of the baffle is fixedly provided with a rectangular liquid resistance plate, the horizontal plane of the liquid resistance plate is vertical to the baffle, the length of the liquid resistance plate is the same as that of the baffle, and the height of the liquid resistance plate is 10-100 mm.
A plurality of right-angled triangular flaky flow deflectors are arranged below each baffle respectively, right-angled sides of the flow deflectors are fixedly connected with the baffles and the bottom plate respectively, the flow deflectors are located on the periphery of the circular holes, 10-100 flow deflectors are arranged below each baffle, and adjacent flow deflectors form a flow channel.
The fire dripping device comprises a side plate I, a side plate II, a bottom plate at the top, a baffle below the bottom plate at the top and a plurality of flow deflectors below the baffle, wherein the side plate I, the side plate II, the corresponding bottom plate, the baffle below the bottom plate and the plurality of flow deflectors below the baffle form a multi-stage fire dripping groove which is continuously arranged from top to bottom.
The liquid distribution system comprises a tap water conveying pipeline and a liquid propane conveying pipeline, a tap water regulating valve is arranged on the tap water conveying pipeline, an outlet of the tap water conveying pipeline is fixed on the outer side of the upper portion of the side plate, the transverse distance between the outlet of the tap water conveying pipeline and the transverse distance between the outlet of the side plate is 100 mm-1000 mm, a liquid propane regulating valve is arranged on the liquid propane conveying pipeline, an outlet of the liquid propane conveying pipeline is fixed on the outer side of the upper portion of the side plate, the transverse distance between the outlet of the liquid propane conveying pipeline and the outlet of the side plate is 100 mm-1000 mm, and the distance between the outlet of the liquid propane conveying pipeline.
Specifically, the first side plate is square, the second side plate is square, the width of the first side plate along the direction vertical to the surface of the tank wall is 200-600 mm, the width of the second side plate along the direction vertical to the surface of the tank wall is 200-600 mm, and the widths of the first side plate and the second side plate are the same.
Specifically, the width of the baffle is 200 mm-600 mm.
Specifically, the diameter of the round holes is 5 mm-50 mm, and the distance between the adjacent round holes is 50 mm-300 mm.
Specifically, the longitudinal distance between the upper supporting seat and the lower supporting seat is 500 mm-1500 mm, the transverse distance between the left supporting seat and the right supporting seat is 100 mm-3000 mm, and the length of each bottom plate is equal to the transverse distance between the two symmetrical supporting seats positioned at the two sides of each bottom plate.
Specifically, the distance between adjacent guide vanes is 50 mm-300 mm.
Specifically, the ignition system comprises an automatic ignition head, the automatic ignition head is fixedly arranged at the upper end part of one side plate, and the vertical distance between the automatic ignition head and the bottom plate at the uppermost part of the fire dripping groove is 50-100 mm.
Specifically, the first side plate and the second side plate are connected with the bottom plate in a welding mode, the first side plate and the second side plate are connected with the supporting seat on the same side in a welding mode, and the right-angle side of the flow deflector is fixedly connected with the baffle and the bottom plate in a welding mode respectively.
The fire simulation method by using the large-scale storage tank wall flowing fire simulation device comprises the following steps:
running water is conveyed by a running water conveying pipeline arranged above the storage tank, flows out of a primary fire dripping groove through an outlet of the running water conveying pipeline, and naturally flows downwards along the surface of a bottom plate of the primary fire dripping groove which is fixed on the wall of the tank and is parallel to the wall of the tank;
running water flows downwards to the secondary fire dripping groove along a flowing liquid channel formed by the flow deflectors through the circular holes on the baffle plate of the primary fire dripping groove, and the running water is uniformly distributed and flows on the bottom plate of the secondary fire dripping groove;
thirdly, tap water which is uniformly distributed on the bottom plate of the secondary fire dripping groove naturally flows to the baffle of the tertiary fire dripping groove, flows downwards along a flowing liquid channel formed by the flow deflector through the round hole on the baffle of the tertiary fire dripping groove, sequentially flows through the four-stage fire dripping groove and the five-stage fire dripping groove to the fire dripping groove at the bottom, and is uniformly distributed on the bottom plate of the each-stage fire dripping groove;
liquid propane is conveyed by a liquid propane conveying pipeline arranged on the storage tank, flows out of the outlet of the liquid propane conveying pipeline into the first-stage fire dripping groove, naturally flows downwards along the surface of a bottom plate of the first-stage fire dripping groove which is fixed on the wall of the tank and parallel to the wall of the tank, and is distributed on the surface of a baffle and the surface of the bottom plate of each stage of fire dripping groove, and the flow path is the same as that of tap water;
fifthly, the liquid propane is heated by tap water on the surface of the fire dripping groove and the external environment in the flowing process, and the liquid phase is converted into a gas phase;
and (VI) starting an automatic ignition head arranged at the top of the trapezoid fire dripping groove, igniting propane gas in the fire dripping groove and igniting the surface of the whole fire dripping groove, and simulating to form a flowing open fire on the wall of the storage tank.
The simulation device and the simulation test method provided by the invention can be used for improving the level of practical training, drilling, technical competition and the like of fire fighting and emergency aid, and have important significance for researching the scene of fire flowing on the tank wall and improving the rescue efficiency and safety by adopting environment-friendly fuel to simulate burning flame.
Drawings
FIG. 1 is a schematic structural diagram of a large-scale tank wall fire simulation device for a flowing fire provided by the invention;
FIG. 2 is a schematic view of a side view of a large tank wall fire simulator with a fire running in accordance with the present invention;
FIG. 3 is a schematic cross-sectional view of a fire simulator for wall sagging of a large storage tank;
fig. 4 is a schematic plan view of the baffle.
The automatic ignition device comprises a first side plate 1, a bottom plate 2, a baffle 3, a tap water pipeline outlet 4, a liquid propane pipeline outlet 5, a supporting seat 6, an automatic ignition head 7, a second side plate 8, a liquid blocking plate 9, a flow deflector 10 and a circular hole 11.
Detailed Description
Fig. 1 is a schematic structural diagram of a fire simulation device for fire trickling on the wall of a large storage tank, and fig. 2 is a schematic structural diagram of the side surface of the fire simulation device, and the fire simulation device comprises a steel fire trickling tank arranged on the wall of the storage tank, a liquid distribution system arranged on the top of the wall of the storage tank, and an ignition system arranged on the top of the fire trickling tank.
The fire dripping groove is fixed on the wall of the storage tank through a supporting seat 6, the fire dripping groove comprises a plurality of bottom plates 2 parallel to the wall of the storage tank, a first side plate 1 and a second side plate 8 perpendicular to the bottom plates 2, the bottom plates 2 are sequentially connected from top to bottom, one sides of the first side plate 1 and the second side plate 8 close to the tank wall are fixedly connected with two edges of each bottom plate 2, the longitudinal distance between the upper supporting seat 6 and the lower supporting seat 6 is 500-1500 mm, the transverse distance between the left supporting seat 6 and the right supporting seat 6 is 100-3000 mm, the length of each supporting seat 6 is 200-1000 mm, the length of each bottom plate 2 is equal to the transverse distance between the two symmetrical supporting seats 6 positioned at two sides of each bottom plate, the lengths of the bottom plates 2 are sequentially increased from top to bottom to form a ladder shape, the first side plate 1 is square, the second side plate 8 is square, the first side plate 1 is 200-600 mm in width along the direction perpendicular to the surface of the tank wall, the width of the side plate II 8 along the direction vertical to the surface of the tank wall is 200-600 mm, and the width of the side plate I1 is the same as that of the side plate II 8.
The supporting seats 6 are provided with a plurality of two rows of supporting seats which are longitudinally and symmetrically distributed on two sides of the bottom plate 2, the supporting seats 6 on the same side are distributed on the same straight line, the side plate I1 is fixedly connected with the supporting seats 6 on the same side, and the side plate II 8 is fixedly connected with the supporting seats 6 on the same side.
A baffle 3 vertical to the bottom plate 2 is fixedly arranged below each bottom plate 2 respectively; the length of the baffle 3 is equal to the distance between two corresponding supporting seats 6 symmetrically arranged in the horizontal direction, the distance is gradually increased from top to bottom, a plurality of round holes 11 are formed in the baffle 3, the diameter of each round hole 11 is 5-50 mm, the distance between every two adjacent round holes 11 is 50-300 mm, a rectangular liquid blocking plate 9 is fixed on the outer edge of the horizontal plane of the baffle 3, the horizontal plane of the liquid blocking plate 9 is perpendicular to the baffle 3, the length of the liquid blocking plate 9 is the same as that of the baffle 3, the width of the baffle 3 is 200-600 mm, and the height of the liquid blocking plate 9 is 10-100 mm.
Each baffle 3 below be provided with the flaky water conservancy diversion piece 10 of a plurality of right angled triangle respectively, the right-angle side of water conservancy diversion piece 10 respectively with baffle 3 and bottom plate 2 fixed connection, water conservancy diversion piece 10 be located round hole 11 peripheral, each baffle 3 below is provided with 10 ~ 100 water conservancy diversion pieces 10, adjacent water conservancy diversion piece 10 forms the liquid passageway, the interval between adjacent water conservancy diversion piece 10 is 50mm ~ 300 mm.
The fire dripping device is characterized in that a first fire dripping groove is formed by the first side plate 1, the second side plate 8, the uppermost bottom plate 2, the baffle 3 below the uppermost bottom plate 2 and the flow deflectors 10 below the baffle 3, a multistage fire dripping groove is formed by the first side plate 1, the second side plate 8, the corresponding bottom plate 2, the baffle 3 below the bottom plate 2 and the flow deflectors 10 below the baffle 3, and the fire dripping groove is continuously arranged from top to bottom.
The liquid distribution system comprises a tap water conveying pipeline and a liquid propane conveying pipeline, a tap water regulating valve is arranged on the tap water conveying pipeline, an outlet 4 of the tap water conveying pipeline is fixed on the outer side above a second side plate 8, the transverse distance between the outlet 4 of the tap water conveying pipeline and the second side plate 8 is 100-1000 mm, a liquid propane regulating valve is arranged on the liquid propane conveying pipeline, an outlet 5 of the liquid propane conveying pipeline is fixed on the outer side above the second side plate 8, the transverse distance between the outlet 5 of the liquid propane conveying pipeline and the second side plate 8 is 100-1000 mm, the distance between the outlet 5 of the liquid propane conveying pipeline and the outlet 4 of the tap water pipeline is 10-500 mm, after the regulating valve is opened, liquid propane can be sprayed to the surface of the uppermost baffle 3, the ignition system comprises an automatic ignition head 7, and the automatic ignition head 7 is installed and, the vertical distance between the automatic ignition head 7 and the bottom plate at the uppermost part of the fire dripping groove is 50 mm-100 mm.
The side plate I1 and the side plate II 8 are connected with the bottom plate 2 in a welding mode, the side plate I1 and the side plate II 8 are connected with the supporting seat 6 on the same side in a welding mode, and the right-angle side of the flow deflector 10 is fixedly connected with the baffle 3 and the bottom plate 2 in a welding mode respectively.
The fire simulation method by using the large-scale storage tank wall flowing fire simulation device comprises the following steps:
running water is conveyed by a running water conveying pipeline arranged above the storage tank, flows out of the primary fire dripping groove through an outlet (4) of the running water conveying pipeline and naturally flows downwards along the surface of a bottom plate (2) of the primary fire dripping groove which is fixed on the wall of the tank and is parallel to the wall of the tank;
running water flows downwards to the secondary fire dripping groove along a flowing liquid channel formed by the flow deflector 10 through the round hole 11 on the baffle 3 of the primary fire dripping groove, and the running water is uniformly distributed and flows on the bottom plate 2 of the secondary fire dripping groove;
thirdly, tap water which is uniformly distributed on the bottom plate 2 of the secondary fire dripping groove naturally flows to the baffle 3 of the tertiary fire dripping groove, flows downwards along a flowing liquid channel formed by the flow deflector 10 through the round hole 11 on the baffle 3 of the tertiary fire dripping groove, sequentially flows through the four-stage fire dripping groove, the five-stage fire dripping groove to the fire dripping groove at the bottommost part, and is uniformly distributed on the bottom plate 2 of the each-stage fire dripping groove;
liquid propane is conveyed by a liquid propane conveying pipeline arranged on the storage tank, flows out of the first-stage fire dripping groove through an outlet (5) of the liquid propane conveying pipeline, naturally flows downwards along the surface of a bottom plate 2 of the first-stage fire dripping groove which is fixed on the wall of the tank and is parallel to the wall of the tank, and is distributed on the surfaces of a baffle 3 and the bottom plate 2 of each stage of fire dripping groove, and the flow path is the same as that of tap water;
fifthly, the liquid propane is heated by tap water on the surface of the fire dripping groove and the external environment in the flowing process, and the liquid phase is converted into a gas phase;
and (VI) opening an automatic ignition head 7 arranged at the top of the trapezoid fire dripping groove, igniting propane gas in the fire dripping groove and igniting the surface of the whole fire dripping groove, and simulating to form a flowing open fire on the wall of the storage tank.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. A fire simulation device for fire flowing of a large storage tank wall comprises a steel fire flowing groove arranged on the wall of a storage tank, a liquid distribution system arranged at the top of the wall of the storage tank and an ignition system arranged at the top of the fire flowing groove, and is characterized in that the fire flowing groove is fixed on the wall of the storage tank through a supporting seat (6), the fire flowing groove comprises a plurality of bottom plates (2) parallel to the wall of the storage tank, a first side plate (1) and a second side plate (8) perpendicular to the bottom plates (2), the bottom plates (2) are sequentially connected from top to bottom, one sides of the first side plate (1) and the second side plate (8) close to the wall of the storage tank are fixedly connected with two edges of each bottom plate (2), and the lengths of the bottom plates (2) are sequentially increased from top to bottom to form a ladder shape;
the supporting seats (6) are longitudinally and symmetrically distributed on two sides of the bottom plate (2) in two rows, the supporting seats (6) on the same side are distributed on the same straight line, the side plate I (1) is fixedly connected with the supporting seats (6) on the same side, and the side plate II (8) is fixedly connected with the supporting seats (6) on the same side;
a baffle (3) perpendicular to the bottom plate (2) is fixedly arranged below each bottom plate (2), the length of each baffle (3) is equal to the distance between two corresponding supporting seats (6) symmetrically arranged in the horizontal direction, a plurality of round holes (11) are formed in each baffle (3), a rectangular liquid-blocking plate (9) is fixed on the outer edge of the horizontal plane of each baffle (3), the horizontal plane of each liquid-blocking plate (9) is perpendicular to the corresponding baffle (3), the length of each liquid-blocking plate (9) is the same as that of each baffle (3), and the height of each liquid-blocking plate (9) is 10-100 mm;
a plurality of right-angled triangular flaky flow deflectors (10) are arranged below each baffle (3), the right-angled sides of each flow deflector (10) are fixedly connected with the baffles (3) and the bottom plate (2) respectively, the flow deflectors 10 are positioned at the periphery of the circular hole (11), 10-100 flow deflectors (10) are arranged below each baffle (3), and the adjacent flow deflectors (10) form a flow channel;
the fire-dripping groove is characterized in that a first side plate (1), a second side plate (8), an uppermost bottom plate (2), a baffle plate (3) below the uppermost bottom plate (2) and a plurality of flow deflectors (10) positioned below the baffle plate (3) form a first-stage fire-dripping groove, the first side plate (1), the second side plate (8), the corresponding bottom plate (2), the baffle plate (3) below the bottom plate (2) and the plurality of flow deflectors (10) positioned below the baffle plate (3) form a multi-stage fire-dripping groove, and the fire-dripping groove is continuously arranged from top to bottom;
the liquid distribution system comprises a tap water conveying pipeline and a liquid propane conveying pipeline, a tap water regulating valve is arranged on the tap water conveying pipeline, an outlet (4) of the tap water conveying pipeline is fixed on the outer side above the second side plate (8), the transverse distance between the outlet (4) of the tap water conveying pipeline and the second side plate (8) is 100-1000 mm, a liquid propane regulating valve is arranged on the liquid propane conveying pipeline, an outlet (5) of the liquid propane conveying pipeline is fixed on the outer side above the second side plate (8), the transverse distance between the outlet (5) of the liquid propane conveying pipeline and the second side plate (8) is 100-1000 mm, and the distance between the outlet (5) of the liquid propane conveying pipeline and the outlet (4) of the tap water pipeline is 10-500 mm;
the liquid propane conveying pipeline sends out liquid propane, the tap water conveying pipeline sends out tap water, the tap water flows to the fire dripping groove, the liquid propane flows along the flowing path of the tap water, the liquid propane is heated by the tap water and the external environment and is converted into a gaseous state, and then the liquid propane is ignited to simulate the open fire with flowing wall of the storage tank.
2. The fire simulation device for the flowing fire of the tank wall of the large-sized storage tank as claimed in claim 1, wherein the first side plate (1) is square, the second side plate (8) is square, the width of the first side plate (1) in the direction vertical to the surface of the tank wall is 200 mm-600 mm, the width of the second side plate (8) in the direction vertical to the surface of the tank wall is 200 mm-600 mm, and the widths of the first side plate (1) and the second side plate (8) are the same.
3. The large-scale storage tank wall fire running simulation device according to claim 1, wherein the longitudinal distance between the upper and lower supporting seats (6) is 500 mm-1500 mm, the transverse distance between the left and right supporting seats (6) is 100 mm-3000 mm, and the length of each bottom plate (2) is equal to the transverse distance between the two symmetrical supporting seats (6) at the two sides of the bottom plate.
4. The large-scale storage tank wall fire running simulation device according to claim 1, wherein the diameter of the circular holes (11) is 5 mm-50 mm, and the distance between adjacent circular holes (11) is 50 mm-300 mm.
5. The large-scale storage tank wall fire running simulation device according to claim 1, wherein the width of the baffle (3) is 200 mm-600 mm.
6. The large-scale storage tank wall fire running simulation device according to claim 4, wherein the distance between adjacent guide vanes (10) is 50-300 mm.
7. The large-scale storage tank wall fire flowing simulation device is characterized in that the ignition system comprises an automatic ignition head (7), the automatic ignition head (7) is fixedly arranged at the upper end of the side plate I (1), and the vertical distance between the automatic ignition head (7) and the bottom plate at the uppermost part of the fire flowing groove is 50-100 mm.
8. The large-scale storage tank wall fire running simulation device according to claim 1, wherein the first side plate (1) and the second side plate (8) are connected with the bottom plate (2) through welding, the first side plate (1) and the second side plate (8) are connected with the supporting seat (6) on the same side through welding, and right-angle edges of the flow deflectors (10) are fixedly connected with the baffle plate (3) and the bottom plate (2) through welding respectively.
9. A method for simulating a fire by using the large tank wall sagging fire simulating device as claimed in any of the preceding claims, comprising the steps of: running water is conveyed by a running water conveying pipeline arranged above the storage tank, flows out of a primary fire dripping groove through an outlet (4) of the running water conveying pipeline and naturally flows downwards along the surface of a bottom plate (2) of the primary fire dripping groove which is fixed on the wall of the tank and is parallel to the wall of the tank;
running water flows downwards to the secondary fire dripping groove along a flowing liquid channel formed by the flow deflector (10) through a circular hole (11) on the baffle (3) of the primary fire dripping groove, and the running water is uniformly distributed and flows on the bottom plate (2) of the secondary fire dripping groove;
thirdly, tap water which is uniformly distributed on the bottom plate (2) of the secondary fire dripping groove naturally flows to the baffle (3) of the tertiary fire dripping groove, flows downwards along a liquid flowing channel formed by the flow deflector (10) through a round hole (11) on the baffle (3) of the tertiary fire dripping groove, sequentially flows through the four-stage fire dripping groove and the five-stage fire dripping groove to the fire dripping groove at the bottom, and is uniformly distributed on the bottom plate (2) of the each-stage fire dripping groove;
liquid propane is conveyed by a liquid propane conveying pipeline arranged on the storage tank, flows out of the first-stage fire dripping groove through an outlet (5) of the liquid propane conveying pipeline, naturally flows downwards along the surface of a bottom plate (2) of the first-stage fire dripping groove which is fixed on the wall of the tank and parallel to the wall of the tank, and is distributed on the surfaces of a baffle (3) and the bottom plate (2) of each stage of fire dripping groove, and the flowing path is the same as that of tap water;
fifthly, the liquid propane is heated by tap water on the surface of the fire dripping groove and the external environment in the flowing process, and the liquid phase is converted into a gas phase;
and (VI) opening an automatic ignition head (7) arranged at the top of the trapezoidal fire dripping groove, igniting propane gas in the fire dripping groove and igniting the surface of the whole fire dripping groove, and simulating to form a flowing open fire on the wall of the storage tank.
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| CN111157670B (en) * | 2020-01-06 | 2022-09-27 | 天津理工大学 | Test device for testing multi-state foam to control flowing fire |
| CN113759070A (en) * | 2021-08-23 | 2021-12-07 | 国网江苏省电力有限公司 | Simulation experiment platform and experiment method for vertical oil spilling and fire dripping of converter transformer under continuous oil spilling condition |
| CN114664164B (en) * | 2022-02-28 | 2024-07-09 | 北京南瑞怡和环保科技有限公司 | Oil storage tank area fire simulation experiment platform |
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