ES1060844U - Trigger of the totality of the loading of a high pressure extinguisher (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Trigger of the entire load of a high-pressure extinguisher, for the immediate dissipation of heat and pressure caused by a deflagration, characterized in that it comprises: - a fire extinguisher equipped with a very high pressure load - an extinguishing charge consisting of a fluorinated hydrocarbon - a valve support body (1) that houses a valve assembly with pyroelectric trigger that is formed by - a set of piston (2) and guide (4 and 6) inserted together, which have - a mutual retention means of the piston (2) and the guide (4 and 6) in closed position formed by housings (30) for locking balls (23) at the end of the piston in cooperation with the guide and a dock - a means of releasing said mutual retaining composed of a pyroelectric trigger whose operation moves the guide (4 and 6) having recesses (31) in which the balls (23) so introduced that the balls are alternately located between the housings (30) of the piston put closure in the recesses (31) of the guide in the firing position - windows (29) arranged in the support body for exit of the extinguisher/cooler, so that by an external detection of extreme pressure or temperature determines the firing of pyroelectric fulminant and thereby the total release of the extinguishing charge/chiller. (Machine-translation by Google Translate, not legally binding)

Description

Trigger of the entire load of a high pressure extinguisher

The technical sector of this invention is the of firefighting and particularly that of firefighting snapshot when a fire has been detected in a space closed.

It is often unfortunately that they occur attacks The attacks usually occur among other means by explosive action The explosives are located outside a bodywork or launched from outside, but its action occurs inside said body. It is also known that the wave expansive of an explosion is what determines the effects destructive The shock wave inside a body inhabited produces a pressure on individuals and an elevation of the temperature instantly that generates destructive effects on dermal tissues and on vital organs. This happens same on an airplane as on a ship as in a car as well as in the cabin of a machine, whether common or equipped with armor. Yes in one of these vital spaces an impact of a hollow charge projectile, or if it deflagrates an explosive attached to its bodywork, the effects can only be avoided if inside said space has a means capable of cooling all the living space in less time than the one that acquires the explosive in transmit intense heat to that space. It has been verified that abrupt cooling occurs at the time it deflagrates a explosive, human tissues and vital organs resist such aggression with good possibilities of viability despite suffering some damage, inevitable compared to the seriousness of deflagration.

Detection with milliseconds of difference between the aggressive action and the extinguishing or cooling reaction is the determinant that the pernicious effect of deflagration does not have effect. The temperature rises gradually, and the shock wave is a consequence of said temperature rise. When produces simultaneous cooling in the same space, it is not avoided totally the effect of the shock wave, but the individuals that they are inside themselves that they can avoid in any case that the suffered attack have the intended consequences for the aggressor.

Therefore, the compositions being known extinguishers that produce the quenching of a fire by cooling, they only need to be applied in a timely manner, that is, before the thermal expansion of the deflagration has had effect. This, of course, without prejudice to the bodywork corresponding be crushed.

Indication of prior art

EP 2209135 by fire extinguisher, "requires a drive mechanism that stops the drive of a resiliently prestressed valve stem (22) has a actuator (46), the valve stem being provided (22) to open the propellant gas cartridge (18), of a pusher (24) rigidly bound and to govern the release of the agent extinguisher on which the propellant gas acts ".

As you can see, this mechanism is the one that expressed as prior art in the aforementioned European patent, without its purpose being to release the entire burden of the extinguisher in a few milliseconds, but on the contrary, dose the load extinguishing, because the security body is removable, which prevents the automatic achievement of its operation.

This patent refers to GB2115905 and the EP0010465 A2 that do not include a common technique but a history of the one indicated above.

ES502258 for improvements in the valves discharge for pressurized fluids, has a sealing membrane that breaks through a percussion that releases the content of the pressure bottle of the extinguisher.

The present invention aims at a trigger of the entire load of a high extinguisher Pressure. The expressed purpose is to cause contraposition enough against a deflagration or attack that affects the cabin of a vehicle or aircraft, especially when it is found armored, preventing the temperature from rising long enough to cause damage to vital tissues or organs of individuals that are located in said cabin.

In order to make clearer the explanation that will follow, it is accompanied by two sheets of drawings that in two figures They represent the essence of the present invention.

Figure 1 shows a sectional view of the valve.

Figure 2 shows a sectional view of the diffuser of the extinguishing or cooling load.

In these figures it is represented indicated by:

one

body instant trigger valve holder

2

piston

3

nut guide support

4

guide of the piston

5

fulminant support

6

guide of solidarity shot to the piston guide

7

fulminant protection

8

fulminant connector

9

screw

10

meeting

eleven

plug of the safety membrane

12

plug of the pressure switch

13

howitzer

14

meeting toric

fifteen

plug load valve protection

16

meeting toric

17

loading valve

18

meeting flat

19

pressure switch

twenty

meeting toric

twenty-one

fulminating firing pin

22

screw

2. 3

balls interlocking

24

dock

25

Barrette

26

meeting

27

balls closing

28

meeting toric

29

windows arranged in the body support for exiting the extinguishing / cooling load

30

ball housings in the piston

31

ball guide holes 2. 3

Explanation of the invention.

The present invention by valve for firing instant of the entire load of an extinguisher, it also has of such a valve an extinguisher tank sized according to the cabin to protect and according to the cooling capacity that want according to the risk that the cabin must assume. Said deposit It is high pressure and acts against explosive atmospheres such as silos of wool, cereal silos and against attacks in habitats little ones.

As the invention disclosed it is intended that the the entire cargo of a pressure vessel is released to the outside immediately, it is necessary to give several terms.

The first is that there is a communication between the exterior and interior so that once the trigger is activated, the full content of the extinguishing or cooling matter, go to outside in milliseconds, to prevent the temperature originated by external aggression it rises so that it generates a wave expansive and its corresponding contraction with pernicious effects for the people.

In addition, the chiller / extinguishing mass must be accumulated at very high pressure, unlike fire extinguishers traditional that act at medium or low pressure, because what interest is the diffusion of dust or foam and not the countermeasure What is the instant diffusion of extinguishing content?

The diffusion of extinguishing material that takes out is a fluorinated hydrocarbon so that by its characteristics and diffusion capacity due to its high pressure and for the quality of invading space immediately available, explosive or flammable atmosphere goes out immediately.

This communication between the inside of the extinguisher and the outside, is obtained by the valve. However, the problematic of these valves could be in the effectiveness of your fast operation, and also in the effectiveness of verification and recharge of the container deposits of the extinguishing material or chiller

The valve has three parts. The first of they, is formed by a body that joins the bottle and that it has some exits to the atmosphere through which the extinguishing or cooling matter.

The second is formed by a set formed by a piston 2 and a firing guide 6 supported by each other by means of balls 23 in cooperation with a housing 30 disposed at the end of the piston 2 which has a housing interior in said first part that has the function of constitute the retention of the extinguishing or cooling matter, but also to facilitate their total liberation. Said rod has a part equipped with holes corresponding to balls of interlocking on which a pressed spring cooperates, so that by means of the pyroelectric trip, the fulminant 21 fires the hammer attached to him who pushes the guide. Initiated this impulse, the guide 4 and 6 is released from the balls that move to the gaps 31 and the pressure exerted on the piston 2 displaces the assembly. The dock 24 has the special function of serving as a lock to the balls 23 when installed.

The third is constituted by a trigger pyroelectric and a cover for said trigger, which prevents can have accidents due to an inconvenient access determined by said shot, while ensuring the inalterability of the set of trigger.

A great advantage of this device is that the Charging medium is independent of the trigger, so it is not It is necessary to disassemble it to carry out maintenance. Thus, as can be seen in Figure 2, which represents a section of part 1, the loading medium is shown as well as the arrangement of these elements that are otherwise conventional, except for the said characteristic of the separation between the two parts, trigger and charging medium.

Explanation of an embodiment

The extinguisher installation is arranged in a vehicle. The passenger compartment of the vehicle is endowed with a multitude of pressure sensors and very high temperature sensors sensitivity. The sensors independently connect to a fulminant connector 8 that is in contact with a device fulminant firing pin 21 which is activated by the excitation of one Any of those sensors. Once the overpressure is detected sudden rise in temperature, the firing pin 21 fires its rod on the trigger guide 6. The guide moves in opposition to the fulminant firing pin 21 and how it is endowed with gaps 31, the balls 23 change their housing, from the end of the piston 2 where they were located in housings 30 to move transversely to the gaps 31. This did not happen before the fulminant firing pin 21 act because the gas pressure impelled the piston 2 towards the firing pin, and the balls 23 were therefore locking guide 6 with piston 2. When percussion occurs, the balls they move to the gaps 31. At this point the piston 2 remains released, allowing it to be telescopically inserted into guide 6 so that it allows the exit of all the extinguishing material / cooler

With the same essence the extinguisher can be arranged in a silo without changing the conditions expressed.

It is of industrial application for manufacturing of items that tend to prevent the progression of a fire or deflagration in a cabin or small space.

Claims (5)

1. Trigger of the entire load of a high pressure extinguisher, for the immediate dissipation of heat and pressure caused by a deflagration, characterized in that it comprises: - a fire extinguisher with a very high load Pressure - an extinguishing charge formed by a hydrocarbon fluoridated - a valve support body (1) housing a valve assembly with pyroelectric trigger that is formed by

-

a piston assembly (2) and guide (4 and 6) inserted together, which they own

-

a mutual retention means of the piston (2) and the guide (4 and 6) in closing position formed by housings (30) for some interlocking balls (23) at the end of the piston in cooperation with the guide and a dock

-

a means for releasing said mutual retention formed by a Pyroelectric trigger whose operation displaces the guide (4 and 6) that has holes (31) in which the balls are introduced (23) so that the balls are alternately located between the piston housings (30) in closed position in the recesses (31) of the guide in the firing position

-

nail windows (29) arranged in the support body for exit of the extinguisher / cooler, so that through an external detection of extreme pressure or temperature determines the fulminant trip pyroelectric and with it the total release of the load fire extinguisher / chiller.

2. Trigger of the entire load of a high-pressure extinguisher, according to claim 1, characterized in that the guide has two extreme positions, one determining the closure of the extinguishing or pressure-cooling load and the other determining the release of said extinguishing or cooling load. 3. Trigger of the entire load of a high-pressure extinguisher, according to claim 1, characterized in that a spring between the guide and the piston has a tendency towards mutual separation with maximum elongation of the piston-guide assembly. 4. Trigger of the entire load of a high pressure extinguisher, according to claim 1, characterized in that the trigger is composed of a firing pin (21) which, when activated, drives the firing guide (6) and releases the piston (2), and acts by displacing the firing guide (6) so that it facilitates the balls embedded in the housings (30) that are housed in the recesses (31) of the firing guide (6), while Opposite side the piston (2) acts simultaneously driven by the loading pressure of the extinguisher / cooler that goes outside through the windows (29) and that telescopically inserts the piston 2 into the guide (4 and 6). 5. Trigger of the entire load of a high pressure extinguisher, according to claim 1, characterized in that the loading and maintenance means of the extinguisher / chiller load are independent of the valve that releases the entire load of the extinguisher.