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Smoke screen generator

A technology for generating device and smoke screen, applied in the directions of smoke/fire/colored gas signals, smoke/gas/colored/odorous powder alarms, cartridges and ammunition, etc. Field of view takes time, etc.

Inactive Publication Date: 2009-02-18
SECOM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, like the above-mentioned signal tube, if the smoke outlet is in one direction, the direction of smoke spray is limited, which is not good for the diffusion of smoke, and there is a problem that it takes time to block the field of view
[0007] In addition, as in the above-mentioned smoke generating device, the method of heating and holding the liquid and continuously generating smoke from a plurality of heating and vaporizing devices has a small amount of generated smoke per unit time, so there is a problem that it takes time to obtain the desired amount of smoke.
[0008] In addition, as in the above-mentioned anti-crime smoke screen device, the gas is maintained in a high-pressure state in the gas tank, and a wide-curtain-shaped smoke screen is instantly sprayed from a plurality of gas discharge holes through the gas discharge slit, and the spray direction is limited. Also, since the smoke is in the form of a curtain, there is a problem that it takes time for the smoke to diffuse.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0067] Figure 1 to Figure 3 , represents the smoke generating device 1 according to the first embodiment of the present invention.

[0068] The smoke generating device 1 of this embodiment includes: an ignition device 2 ; an aerosol 6 that is combusted by the ignition device 2 to generate smoke; and a combustion chamber 10 that accommodates the aerosol 6 .

[0069] The ignition device 2 includes: an igniter 3; an igniter case 4 surrounding the igniter 3; and an igniter 5 filled in the igniter case 4 to increase energy from the igniter 3 and spread combustion to the aerosol 6; And it is installed in the central part of the combustion chamber 10 to spread the combustion from the ignition powder 5 to the aerosol 6 evenly.

[0070] The igniter 3 has a heating element 3 a that generates heat by energization, and an ignition powder 3 b that is ignited by the heating element 3 a. Here, astringent was used as the ignition powder. The igniter 3 is engaged with the cap 7 and placed ...

no. 2 approach

[0100] Figure 4 to Figure 6 A smoke screen generating device 20 according to a second embodiment of the present invention is shown.

[0101] The smoke generating device 20 of this embodiment includes: an ignition device 22; an aerosol 26 that generates smoke by burning the ignition device 22; a combustion chamber 30 that accommodates the aerosol 26; and a spray chamber 31 that is adjacent to the combustion chamber 30 .

[0102] The difference between the smoke generating device 20 of the present embodiment and the smoke generating device 1 of the first embodiment is that an ejection chamber 31 is provided adjacent to the combustion chamber 30, and the gas smoke is not released from the combustion chamber 30, but is emitted from the ejection chamber. 31 released.

[0103] The bottomed chamber 28 made of stainless steel with a thickness of about 1.5mm constituting the combustion chamber 30 is provided with a bottomed covering portion 28b in order to form the discharge chamber...

experiment example 1

[0137] Such as Figure 7 As shown, at a width of about 5.3m x a depth of about 2.1m x a height of about 2.3m (about 26m 3 ) in the center of the room 50, at a position 30 cm from the top side, the smoke generating device 20 of this embodiment is installed.

[0138] In addition, the number of the first smoke outlet 32a and the second smoke outlet 32b of the device in Experimental Example 1 is 20 and 8, respectively. At this time, a sound pressure measurement sensor 51 is provided for measuring the sound pressure level.

[0139] Next, energize the igniter and operate the device by remote operation.

[0140] As a result, the combustion of the aerosol ends in about 0.5 seconds, and within about 1 to 2 seconds from the start of the aerosol combustion, the smoke is ejected from the first smoke outlet 32a and the second smoke outlet 32b. The relationship between time and combustion chamber pressure is as follows Figure 8 As shown, the pressure in the combustion chamber becomes t...

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PUM

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Abstract

A smoke screen generator in which the field of view is shut off instantaneously (short time) by emitting smoke without requiring any heater or an accumulator and a sound for intimidation can be generated, in which spreading performance of smoke screen can be enhanced by the number of smoke ejection openings and the angle of smoke ejecting direction, and in which a required quantity of smoke can be emitted in a short time in a limited space. The smoke screen generator comprises an igniter, a smoke emitting agent being fired by the igniter to emit smoke, and a combustion chamber for containing the smoke emitting agent provided with an opening for ejecting gas smoke generated through combustion of the smoke emitting agent to the outside, wherein a member for holding the pressure of gas smoke is provided at the smoke ejection opening.

Description

technical field [0001] The present invention mainly relates to a smoke screen generating device, which warns or intimidates thieves or intruders by generating smoke and sound (ignition sound), and prevents or delays actions by obstructing or delaying actions by generating smoke to obstruct the field of view. The crime of stealing protected objects, etc. Background technique [0002] In the past, devices that emit smoke have been used, for example, for emergency use, rescue use, crime prevention use, disaster prevention training use, stage performance use, and plant frost damage prevention use. [0003] There are signal tubes for emergency use and rescue use (for example, refer to Patent Document 1). This signal cylinder discloses igniting the aerosol and producing smoke rapidly from one direction of the cylinder. [0004] In addition, there is a smoke generator for disaster prevention drills or for preventing plant frost damage (for example, refer to Patent Document 2). T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B15/02
CPCG08B15/02F42B5/15G08B5/40
Inventor 鹿住孝金泽义一铃木良博川野诚
Owner SECOM CO LTD
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