Piston-driven water mist fire extinguishing device
A piston-driven, fire-extinguishing device technology, applied in fire rescue, etc., can solve problems such as water and high-pressure gas mixing, and achieve the effects of convenient and fast movement, avoiding discontinuous spraying, and compact structure
Inactive Publication Date: 2017-11-10
HEFEI UNIV OF TECH
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Problems solved by technology
[0003] In order to solve the problem of water and high-pressure gas mixing in the existing water mist device in the aircraft cabin and microgravity environment, and make full use of the high-pressure gas, the purpose of the present invention is to provide a piston-driven fine water mist fire extinguishing device for space capsules. device
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[0013] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.
[0014] Examples see figure 1 , figure 1 It is a schematic diagram of the structure of the present invention.
[0015] A piston-driven fine water mist fire extinguishing device, comprising a high-pressure gas cylinder 1, a storage tank 2, a nozzle 18, a hose 11 with a tank, and a hose 10, and is characterized in that the storage tank 2 has a safety valve on its top. Valve 6, high-pressure gas inlet 24, three-way valve 8 and reel bracket 9; hose fixing bracket 19 is provided on its outside; base support block 21, water inlet and outlet pipe 22, water inlet and outlet pipe valve 23 and water outlet are arranged at the bottom 25; the upper limit block 13, the piston 12, the sealing ring 14 and the lower limit block 20 are arranged inside; the high-pressure gas cylinder 1 and the storage tank 2 are connected by a high-pressure gas pipe 4, and a dec...
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The invention discloses a piston-driven water mist fire extinguishing device specially used for a space capsule. The piston-driven water mist fire extinguishing device is characterized in that a storage tank is internally provided with upper limiting blocks, a piston, a sealing ring and lower limiting blocks; the sealing ring is arranged on the outer circle of the piston, the piston and the sealing ring move up and down on the inner wall of the storage tank, position limiting for up-down moving is achieved through the upper limiting blocks and the lower limiting blocks, and the piston partitions an inner cavity of the storage tank into an upper portion and a lower portion, that is, the upper portion is provided with high-pressure gas, and the lower portion is provided with a water body; a right port of a three-way valve is connected with a water outlet in the lower portion of the storage tank through a hosepipe, and a lower port of the three-way valve is connected with an air outlet in the upper portion of the storage tank; and through switching of the three-way valve, the right port is connected firstly for spraying water mist for fire extinguishing, and then the lower port is connected in a switching manner for spraying the high-pressure gas for fire extinguishing. The piston-driven water mist fire extinguishing device provided by the invention is compact in structure, and fast moving in the space capsule is facilitated; and fire extinguishing is clean and efficient, and the device is used for extinguishing early stage fires and big fires in time.
Description
technical field [0001] The invention belongs to the technical field of fire-fighting facilities, and in particular relates to a fine water mist fire extinguishing device driven by a piston. Background technique [0002] With the development of manned spacecraft and Chang'e series satellites, my country's aerospace industry has entered a new era. There are certain combustibles in these spacecraft cabins. Once a fire breaks out, the mild ones may cause damage to the equipment, and the severe ones may cause catastrophic losses (such as failure to return to Earth, casualties, or explosion of the aircraft, etc.). Therefore there is an urgent need for a clean and efficient fire extinguishing device. At present, fire extinguishing agents such as foam and dry powder may have a certain corrosive effect on the equipment in the aircraft cabin. Gas fire extinguishing agents (such as 1301, heptafluoropropane, etc.) are toxic, which can easily lead to cold and brittle equipment and pollu...
Claims
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IPC IPC(8): A62C3/08A62C31/00
Inventor 王昌建杨慎林
Owner HEFEI UNIV OF TECH