CN112957634A - Totally enclosed gas fire extinguishing isolation device - Google Patents
Totally enclosed gas fire extinguishing isolation device Download PDFInfo
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- CN112957634A CN112957634A CN202110186940.4A CN202110186940A CN112957634A CN 112957634 A CN112957634 A CN 112957634A CN 202110186940 A CN202110186940 A CN 202110186940A CN 112957634 A CN112957634 A CN 112957634A
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- main body
- fire extinguishing
- aircraft engine
- air bag
- totally enclosed
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/08—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/04—Removing or cutting-off the supply of inflammable material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to the technical field of fire extinguishing devices, and particularly relates to a totally-enclosed gas fire extinguishing isolation device. The technical scheme is as follows: a totally enclosed gas fire extinguishing and isolating device comprises an airbag main body used for surrounding an aircraft engine, wherein the airbag main body is cylindrical; the air bag comprises an air bag main body and is characterized by also comprising an air nozzle, wherein the air nozzle is arranged on an aircraft engine hanger and is positioned in the air bag main body; the air bag main body and the air spray head are connected to the same air source device; and a top isolation mechanism for isolating the upper part of the aircraft engine is fixed at the top of the airbag main body. The invention provides a gas fire extinguishing isolation device capable of isolating an aircraft engine to realize rapid fire extinguishing.
Description
Technical Field
The invention belongs to the technical field of fire extinguishing devices, and particularly relates to a totally-enclosed gas fire extinguishing isolation device.
Background
For equipment which runs in open air or open scenes such as large open-air power transmission and transformation transformers, large oil and gas field exploitation fracturing units, aeroengines and high-altitude simulation test beds, if fire disasters caused by out-of-control combustion occur, serious economic loss and social influences are caused. Because the best effect can be achieved only by adopting a gas fire extinguishing mode in a limited space, the fire behavior is difficult to control by adopting gas fire extinguishing under the working conditions of the open air and open scenes.
An aerial engine high-altitude simulation test bed is called a high-altitude bed for short, and is system equipment for simulating the flying condition and environment of an aircraft engine in the air on the ground and carrying out high-altitude simulation tests on the whole engine and parts. The scientific test of various functions, performances and technical and tactical indexes when the aero-engine is simulated to fly on the high-altitude platform is an important and necessary stage in the development process of the design, the shaping and the improvement and the modification of the aero-engine, and is an indispensable means for developing the advanced aero-engine and the improvement and the modification thereof. In order to research and develop an advanced aero-engine, a large number of tests must be carried out on an aero-engine high-altitude simulation test bed so as to analyze, study, verify and examine the performance, functions, acceleration and deceleration characteristics, working stability, air starting special force connection characteristics, working performances of systems such as lubricating oil and the like of the aero-engine and parts thereof. Through high altitude simulation test, can effectively verify technical scheme, provide technical support for developing high-efficient driving system. The high-altitude simulation test is the most effective way for designing, improving and modifying the aero-engine, technical attack and failure reproduction and elimination.
In the process of testing the aircraft engine at the high-altitude platform, when the aircraft engine is on fire, the conventional gas fire extinguishing mode is difficult to extinguish the fire quickly and reliably. The high-altitude platform is located spacious indoor, and when using gases such as carbon dioxide to put out a fire, gas is difficult to reach higher concentration around aircraft engine to the ignition point on the aircraft engine is difficult to put out a fire fast. When gas is used for extinguishing fire, the fire extinguishing efficiency can be improved only by reducing the emission of the gas.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention is directed to a gas fire-extinguishing isolation device capable of isolating an aircraft engine to achieve rapid fire extinguishment.
The technical scheme adopted by the invention is as follows:
a totally enclosed gas fire extinguishing and isolating device comprises an airbag main body used for surrounding an aircraft engine, wherein the airbag main body is cylindrical; the air bag comprises an air bag main body and is characterized by also comprising an air nozzle, wherein the air nozzle is arranged on an aircraft engine hanger and is positioned in the air bag main body; and a top isolation mechanism for isolating the upper part of the aircraft engine is fixed at the top of the airbag main body.
When the aircraft engine fires in the test, the air source device can be used to inflate the airbag main body. The airbag main body forms a cylindrical structure after being inflated, so that the aircraft engine is surrounded by the airbag main body. After the airbag main body is inflated, the gas enters the top isolation mechanism again, so that the upper space of the aircraft engine is isolated, and the aircraft engine is located in the closed space defined by the airbag main body and the top isolation mechanism.
The air bag main body and the gas nozzle can be connected to the same gas source device, when the gas source device inflates the air bag main body, the gas nozzle is inflated, and then the fire extinguishing gas can be filled in the inner space of the air bag main body, so that a full-submerged environment can be quickly formed around the aircraft engine, and the rapid and reliable fire extinguishing is facilitated.
As a preferable scheme of the invention, a plurality of auxiliary spray heads are arranged on the inner wall of the air bag main body, and the auxiliary spray heads are communicated with the air bag main body. In the process of inflating the air bag main body, part of gas can be sprayed out from the auxiliary spray head, so that the concentration of the gas in the air bag main body is accelerated, and the fire extinguishing efficiency is further improved. The auxiliary nozzle is connected with one side of a connecting port of the air bag main body through an elastic rubber sheet, and a gap is formed between the elastic rubber sheet and the auxiliary nozzle in a natural state. When the air pressure in the air bag main body is small, the air can pass through the gap between the elastic rubber sheet and the auxiliary spray head, so that the auxiliary spray head sprays fire extinguishing gas to the aircraft engine. When the pressure in the air bag main body is high enough, the elastic rubber sheet is closed, and air leakage of the air bag main body is avoided.
As a preferred aspect of the present invention, the gas shower head is disposed toward the aircraft engine. The gas nozzle sprays fire extinguishing gas to the aircraft engine, so that the periphery of the aircraft engine can be surrounded by the fire extinguishing gas, oxygen is isolated, and the fire is controlled.
As a preferable aspect of the present invention, an insulating fire-proof cloth for insulating a lower space of an aircraft engine is connected in the airbag main body. After the airbag main body is filled with gas, the isolated fireproof cloth rises along with the airbag main body, and the isolated fireproof cloth can pocket the lower part of the aircraft engine, so that the aircraft engine is surrounded in a smaller space by the isolated fireproof cloth, the airbag main body and the top isolated mechanism, the speed of full flooding of the fire extinguishing gas to the aircraft engine is further accelerated, and the fire extinguishing speed is improved.
As a preferred scheme of the invention, a plurality of layers of connecting columns are arranged on the inner wall of the air bag main body, and the isolation fireproof cloth is connected between the connecting columns of one layer. According to every high altitude bench aircraft engine's height, can corresponding regulation isolated fire prevention cloth in the internal position of gasbag main part for the gasbag main part is aerifyd the back, and isolated fire prevention cloth can just pocket aircraft engine's bottom, thereby isolated fire prevention cloth, gasbag main part and the isolated space that the isolated mechanism in top encloses are minimum, and fire extinguishing gas can be fast in aircraft engine and gather on every side, thereby isolated oxygen forms the environment of putting out a fire.
As a preferred scheme of the invention, the top isolation mechanism comprises a connecting ring, the connecting ring is fixed at the top of the air bag main body, a plurality of arc-shaped grooves are formed in the connecting ring, rubber sheets are arranged in the arc-shaped grooves, and one ends of the rubber sheets are connected with the inner walls of the arc-shaped grooves; one end of the connecting ring, which is far away from the air bag main body, is connected with a transverse air bag. After the air bag main body is inflated, the air pressure in the air bag main body is gradually increased, and when the air pressure reaches a certain value, the air pushes away the rubber sheet in the arc-shaped groove, so that the fire extinguishing gas can enter the transverse air bag. After the transverse airbags are inflated, the plurality of transverse airbags isolate the upper space of the aircraft engine, so that the condition that fire extinguishing gas is emitted from the upper part of the aircraft engine is reduced. The rubber sheet has a certain strength, and is not easily pushed away by gas before the airbag main body is not filled, so that the transverse airbag is in a compressed state at this time. In the process of inflating the airbag main body, the transverse airbag is in a compressed state, so that the transverse airbag cannot interfere with the aircraft engine, and the airbag main body is ensured to be accurately lifted and surround the aircraft engine.
In a preferred embodiment of the present invention, the lateral air cells have a fan shape. The transverse air bags are fan-shaped, and a plurality of transverse air bags can be spliced into a circle, so that the upper space of the aircraft engine is effectively isolated.
In a preferred embodiment of the present invention, a plurality of storage cases for storing the lateral airbags are fixed to the connecting ring on a side away from the airbag main body, and a case plate is hinged to an inner side of the storage case. The transverse air bag is accommodated in the accommodating box when not inflated and is sealed by the box plate, so that the condition that the transverse air bag is inflated in the inflating process of the air bag main body is further avoided, and the air bag main body can smoothly rise and surround an aircraft engine.
In a preferred embodiment of the present invention, a gap for an aircraft engine pylon to pass through is reserved between the lateral airbags. The aircraft engine is supported by the aircraft engine hanger, and in order to avoid the transverse air bags being blocked by the aircraft engine hanger, a gap through which the aircraft engine hanger passes is reserved between the transverse air bags, so that the transverse air bags can be smoothly inflated and stretched.
The air bag further comprises a cover plate for sealing the air bag body in a compressed state, and the cover plate is hinged on the ground. When the aircraft engine test is not carried out, the cover plate seals the air bag main body, and the air bag main body is prevented from popping up. Before the test of the aircraft engine is carried out, the cover plate is opened, and once a fire occurs, the airbag main body can be rapidly inflated.
The invention has the beneficial effects that:
the airbag main body of the present invention forms a cylindrical structure after being inflated, so that the aircraft engine can be surrounded by the airbag main body. After the airbag main body is inflated, the gas enters the top isolation mechanism again, so that the upper space of the aircraft engine is isolated, and the aircraft engine is located in the closed space defined by the airbag main body and the top isolation mechanism. When the air source device inflates the air bag main body, the air nozzle is inflated, and the fire extinguishing gas can be filled in the inner space of the air bag main body, so that a full-submerged environment can be quickly formed around the aircraft engine, and the rapid and reliable fire extinguishing is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a top view of the present invention;
fig. 4 is a schematic diagram of the invention after retraction.
In the figure, 1 — aircraft engine; 2-an airbag body; 3-on the aircraft engine pylon; 4-a top isolation mechanism; 5-isolating fireproof cloth; 6-cover plate; 21-auxiliary spray head; 22-connecting column; 23-an elastic rubber sheet; 31-a gas shower; 41-connecting ring; 42-rubber sheet; 43-transverse air bag; 44-a storage box; 45-cassette plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, the totally enclosed gas fire extinguishing insulation device of the present embodiment includes an airbag main body 2 for surrounding an aircraft engine 1, the airbag main body 2 being cylindrical in shape; the air bag further comprises an air nozzle 31, wherein the air nozzle 31 is arranged on the aircraft engine hanger 3, and the air nozzle 31 is positioned in the air bag main body 2; the air bag main body 2 and the gas spray head 31 are connected to the same gas source device; a top isolation mechanism 4 for isolating the upper part of the aircraft engine 1 is fixed to the top of the airbag main body 2.
When the aircraft engine 1 fires during a test, the airbag body 2 can be inflated using the air supply device. The airbag body 2 forms a tubular structure after inflation, so that the aircraft engine 1 is surrounded by the airbag body 2. After the airbag main body 2 is inflated, the gas enters the top isolation mechanism 4 again, so that the upper space of the aircraft engine 1 is isolated, and the aircraft engine 1 is located in the closed space enclosed by the airbag main body 2 and the top isolation mechanism 4. When the air source device inflates the air bag main body 2, the gas nozzle 31 is inflated, and the fire extinguishing gas can be filled in the inner space of the air bag main body 2, so that a total flooding environment can be quickly formed around the aircraft engine 1, and the rapid and reliable fire extinguishing is facilitated.
The gas in the gas source device can be carbon dioxide, heptafluoropropane, IG541 and other fire extinguishing gases. The gas source device is connected with the gas nozzle 31 and the airbag main body 2 through hoses respectively. The gas shower 31 is arranged towards the aircraft engine 1. The gas nozzles 31 spray extinguishing gas against the aircraft engine 1, so that the surroundings of the aircraft engine 1 can be surrounded by extinguishing gas, thereby isolating oxygen and enabling the fire to be controlled.
In order to accelerate the increase of the gas concentration, a plurality of auxiliary nozzles 21 are arranged on the inner wall of the airbag main body 2, and the auxiliary nozzles 21 are communicated with the airbag main body 2. In the process of inflating the air bag main body 2, part of gas can be sprayed out from the auxiliary spray head 21, so that the concentration of the gas in the air bag main body 2 is accelerated to be improved, and the fire extinguishing efficiency is further improved. The auxiliary nozzle 21 is connected to one side of the connection port of the airbag main body 2 by an elastic rubber piece 23, and a gap is provided between the elastic rubber piece 23 and the auxiliary nozzle 21 in a natural state. When the air pressure in the airbag main body 2 is small, gas can pass through the gap between the elastic rubber sheet 23 and the auxiliary head 21, and the auxiliary head 21 sprays the fire extinguishing gas to the aircraft engine 1. When the pressure in the airbag main body 2 is sufficiently high, the elastic rubber piece 23 closes, avoiding the airbag main body 2 from leaking air.
In order to reduce the size of the enclosed space, an insulating fire-proof cloth 5 for insulating the lower space of the aircraft engine 1 is attached to the airbag main body 2. After the airbag main body 2 is filled with gas, the isolation fireproof cloth 5 rises along with the airbag main body 2, and the isolation fireproof cloth 5 can pocket the lower part of the aircraft engine 1, so that the isolation fireproof cloth 5, the airbag main body 2 and the top isolation mechanism 4 surround the aircraft engine 1 in a smaller space, the speed of full flooding of the fire extinguishing gas to the aircraft engine 1 is further accelerated, and the fire extinguishing speed is improved.
The inner wall of the airbag main body 2 is provided with a plurality of layers of connecting columns 22, and the isolation fireproof cloth 5 is connected between the connecting columns 22. According to every high altitude bench aircraft engine 1's height, can corresponding regulation isolated fire prevention cloth 5 the position in gasbag main part 2 for gasbag main part 2 aerifys the back, isolated fire prevention cloth 5 can just hold aircraft engine 1's bottom, thereby isolated fire prevention cloth 5, gasbag main part 2 and the space that top isolation mechanism 4 encloses are minimum, and fire extinguishing gas can be fast at aircraft engine and gather on every side, thereby isolated oxygen, forms the environment of putting out a fire.
As shown in fig. 2 and 3, the top isolation mechanism 4 includes a connection ring 41, the connection ring 41 is fixed on the top of the airbag main body 2, the connection ring 41 is provided with a plurality of arc-shaped grooves, rubber sheets 42 are arranged in the arc-shaped grooves, and one end of each rubber sheet 42 is connected with the inner wall of each arc-shaped groove; the end of the connecting ring 41 away from the airbag main body 2 is connected with a transverse airbag 43. After the airbag main body 2 is inflated, the air pressure in the airbag main body 2 gradually rises, and when the air pressure reaches a certain value, the air pushes away the rubber sheet 42 in the arc-shaped groove, so that the fire extinguishing gas can enter the transverse airbag 43. After the transverse air bags 43 are inflated, the plurality of transverse air bags 43 isolate the upper space of the aircraft engine 1, thereby reducing the emission of fire extinguishing gas from the upper part of the aircraft engine 1. The rubber sheet 42 has a strength such that the rubber sheet 42 is not easily pushed open by gas until the airbag main body 2 is not yet filled, so that the lateral airbag 43 is in a compressed state at this time. In the process of inflating the airbag main body 2, the transverse airbag 43 is in a compressed state, so that the transverse airbag 43 does not interfere with the aircraft engine 1, and the airbag main body 2 is ensured to be accurately lifted and surround the aircraft engine 1.
Wherein the shape of the transverse air bag 43 is a sector. The transverse air bags 43 are shaped like sectors, so that a plurality of transverse air bags 43 can be spliced into a circle, thereby effectively isolating the upper space of the aircraft engine 1.
Furthermore, a plurality of storage boxes 44 for storing the lateral airbags 43 are fixed to the side of the connection ring 41 away from the airbag main body 2, and a box plate 45 is hinged to the inside of the storage boxes 44. The lateral air bag 43 is accommodated in the accommodation case 44 when not inflated, and is sealed by the case plate 45, further avoiding the situation that the lateral air bag 43 is inflated during the inflation of the air bag main body 2, so that the air bag main body 2 can be smoothly raised and surround the aircraft engine 1.
A gap for the aircraft engine pylon 3 to pass through is reserved between the transverse airbags 43. The aircraft engine 1 is supported by the aircraft engine hanger 3, and in order to avoid the transverse air bags 43 being blocked by the aircraft engine hanger 3, gaps through which the aircraft engine hanger 3 passes are reserved between the transverse air bags 43, so that the transverse air bags 43 can be smoothly inflated and stretched.
As shown in fig. 4, the present invention further includes a cover plate 6 for enclosing the airbag main body 2 in a compressed state, the cover plate 6 being hinged on the ground. When the aircraft engine 1 is not tested, the cover plate 6 seals the airbag main body 2 to prevent the airbag main body 2 from popping up. Before the test of the aircraft engine 1 is carried out, the cover plate 6 is opened, and once a fire occurs, the airbag main body 2 can be rapidly inflated.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. A totally enclosed gas fire extinguishing insulation device is characterized by comprising an air bag main body (2) used for surrounding an aircraft engine (1), wherein the air bag main body (2) is cylindrical; the air bag structure is characterized by further comprising an air nozzle (31), wherein the air nozzle (31) is arranged on the aircraft engine hanger (3), and the air nozzle (31) is located in the air bag main body (2); and a top isolation mechanism (4) for isolating the upper part of the aircraft engine (1) is fixed at the top of the airbag main body (2).
2. A totally enclosed gas fire extinguishing insulation device according to claim 1, characterized in that a plurality of auxiliary nozzles (21) are provided on the inner wall of the airbag main body (2), the auxiliary nozzles (21) being in communication with the airbag main body (2).
3. A totally enclosed gas fire extinguishing insulation arrangement according to claim 1, characterized in that the gas nozzles (31) are arranged towards the aircraft engine (1).
4. A totally enclosed gas fire extinguishing insulation arrangement according to claim 1, characterized in that an insulating fire cloth (5) for insulating the lower space of the aircraft engine (1) is connected inside the airbag body (2).
5. A totally enclosed gas fire extinguishing insulation device according to claim 4, characterized in that the inner wall of the airbag main body (2) is provided with a plurality of layers of connecting columns (22), and the insulation fire-proof cloth (5) is connected between one of the layers of connecting columns (22).
6. The totally enclosed type gas fire extinguishing insulation device according to claim 1, wherein the top insulation mechanism (4) comprises a connecting ring (41), the connecting ring (41) is fixed on the top of the airbag main body (2), the connecting ring (41) is provided with a plurality of arc-shaped grooves, rubber sheets (42) are arranged in the arc-shaped grooves, and one ends of the rubber sheets (42) are connected with the inner walls of the arc-shaped grooves; one end of the connecting ring (41) far away from the air bag main body (2) is connected with a transverse air bag (43).
7. A totally enclosed gas fire extinguishing insulation arrangement according to claim 6, characterized in that the shape of the transverse air bags (43) is sector shaped.
8. A totally enclosed gas fire extinguishing insulation device according to claim 6, characterized in that a plurality of storage boxes (44) for storing the transverse airbags (43) are fixed on the side of the connecting ring (41) far away from the airbag main body (2), and the inner sides of the storage boxes (44) are hinged with box plates (45).
9. A totally enclosed gas fire extinguishing insulation arrangement according to claim 6, characterized in that gaps are reserved between the transverse airbags (43) for the passage of the aircraft engine pylon (3).
10. A totally enclosed gas fire extinguishing insulation system according to any one of claims 1 to 9, further comprising a cover plate (6) for enclosing the airbag body (2) in a compressed state, the cover plate (6) being hinged to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186940.4A CN112957634B (en) | 2021-02-06 | 2021-02-06 | Totally enclosed gas fire extinguishing isolation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186940.4A CN112957634B (en) | 2021-02-06 | 2021-02-06 | Totally enclosed gas fire extinguishing isolation device |
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| CN112957634A true CN112957634A (en) | 2021-06-15 |
| CN112957634B CN112957634B (en) | 2022-02-22 |
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| CN202110186940.4A Active CN112957634B (en) | 2021-02-06 | 2021-02-06 | Totally enclosed gas fire extinguishing isolation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870289A (en) * | 2022-06-02 | 2022-08-09 | 温州职业技术学院 | Isolation fire extinguishing type electrical control box |
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| CN114870289A (en) * | 2022-06-02 | 2022-08-09 | 温州职业技术学院 | Isolation fire extinguishing type electrical control box |
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| CN112957634B (en) | 2022-02-22 |
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