JPS5872900A - Danger inhibiter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fire suppression device using an electrically ignited explosive. More particularly, a mechanically initiated signal is transmitted from a remote station to a mechanical-electrical actuator via a mechanical linkage to generate an electrical signal for igniting an electrically ignited primer. Relating to a suppressor.

A fire suppression device (e.g., U.S. Pat. No. 3,762, 479) is known in the art (5). This type of fire suppression device is particularly suitable when immediate release of fire suppression is required in areas that are not easily accessible, such as car engine areas or boat bends, which tend to be filled with smoke from edges. There is. Previously, fire suppression devices containing electrically ignited primers required a separate energy source, a conductive wire connected to the primer, a source of electrical energy, and a remote actuation station. Although previous devices have been found to be generally satisfactory in operation, they have relied on the integrity of conductive wires and the integrity of a separate source of electrical energy. Reliance on electrical system integrity is viewed by some naval architects as an undesirable characteristic for fire suppression systems designed for ships. Nevertheless, electrically ignited detonator charges in conjunction with frangible seals are considered superior from the standpoint of immediate release of fire suppression. Fire suppression devices with electrically ignited detonators and frangible seals that do not rely on external sources of electrical energy and reduce the need for conductive wires to a minimum have decisive advantages (6). There is.

The aforementioned problems are largely solved by the fire suppression device according to the invention. That is, the fire suppression device of the present invention includes a frangible seal and an electrically ignited explosive,
Moreover, it does not rely on an external source of electrical energy, minimizing the need for conductive wires.

The fire suppression device according to the present invention can be broadly summarized as follows.

a sealed fire suppressant container, an electrically ignited detonator for selectively rupturing the seal of the container, and a mechanical-electrical actuator for generating an electrical signal sufficient to ignite the detonator; .

A remote release station and a mechanical linkage connecting the remote release station and a mechanical-electrical actuator are included.

The mechano-electric actuator may be located adjacent to the fire suppressant container and near the electrically ignited detonator.

In a particularly preferred embodiment, the mechanical linkage includes a cable and pulley assembly, and the mechanical-electrical actuator includes a selectively rotatable boot (7) operably connected to the pulley. A gear assembly, a spring for storing mechanical energy produced by rotation of the pulley and gear assembly, and a DC generator for converting the mechanical energy stored by the spring into electrical energy are provided.

The present invention will be explained below with reference to the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, 1 a hazard or fire suppression device 10 according to the present invention generally comprises an electrically ignited explosive 1
4, a mechanical and electrical actuator 16 (hereinafter simply referred to as the actuator), a remote control station 18, and a mechanical linkage 20 connecting this station and the actuator 16. .

Container 12 is conventional and has an externally threaded tubular opening 22. A female threaded outlet extension 24 connects the tubular port 2
It is screwed into 2. An annular alignment washer 26 is inserted between the tubular port 22 and the outlet extension 24. End 28 of tubular port 22 is sealed by a transversely extending rupturable metal explosive or membrane 30. This explosive membrane 60 (8) is a relatively thin and fragile diaphragm that is characterized by resistance to rupture until a predetermined pressure is exceeded; It is done. The explosive film 60 has a feature of having a dome structure with a circular unevenness at its center. The bursting membrane is positioned beyond the end 28 of the tubular mouth 22 with its concave surface facing the container 12. The outlet extension 24 is provided with a bell-shaped suppression distribution head 62 .

The detonator 14 includes a detonator 64, a detonator receiver 66, and a connecting line 38. The initiator 14 is threaded into the outlet extension 34 such that one end 40 of the initiator is placed in pressure contact with the convex surface 42 of the detonating membrane 60.

Mechanical-electrical actuator 16 is connected to hazard containment container 12 near detonator receiver 66 . The actuator 16 consists of a rotatable cantilevered pulley 44, a drive spring 48 and a DC generator 50. A ball and rotation stop assembly 52 consisting of a spring-reducing ball (9) 54 in the housing 56 of the actuator 16 and a recess 58 cut into the face of the pulley 44 is positioned to maintain the pulley 44 in a stationary position. be done.

Gear assembly 46 consists of a drive gear 60 (FIG. 6) and a small driven gear 62. The driven gear 62 is attached to an armature 64 of the DC generator 50, while the pulley 44 and the drive gear 60 are attached to rotate around a fixed shaft 66.

The drive spring 48 is a coil spring, and the drive spring 48 is a coil spring.
It is accommodated in an m-enclosure 68 that protrudes from the housing 50.

The inner end 70 of the drive spring 48 is connected to the armature 6 of the DC generator 50.
4, and its outer end 72 is secured to the enclosure 68.

A toothless gap or notch 76 is provided at the circumferential end 74 of the drive gear 600. The circumference of the drive gear 600 is preferably about 3.18 cIrL (I-, - inches) or thicker. The gear ratio of the drive gear and the driven gear is about 5=1 to about 10= It is preferable to set it to 1 or less.

Mechanical linkage 20 includes a cable assembly 78 and a plurality of corner pulleys 80. Cable assembly 7
8 is provided with a cable 82 movably encased in a conduit 84 containing the cable.

The working end of cable 82 passes through a suitably packed elbow fitting 86 to housing 56.

It is operably connected to a pulley 44. cable 82
The opposite end of is connected to an end joint 92 through a perforated plate 88 attached to the partition wall 90. This end fitting is secured to a handle 94 as best shown in FIG.

A brass sleeve (not shown) is pleated over the cable 82 and positioned over the cable 82 so that it is pressed against the outer surface of the actuator when the cable 82 is fully wrapped around the pulley 44. It's convenient.

The DC generator 50 is connected to the connection line, ie, the explosive line 38, by an output line 9B. Blocking diode 98 is connected to output line 9
interposed on 6. As shown in the second figure, the fire suppression system 10 according to the present invention is connected by a line 102 to a conventional hazard-sensing automatic electronic ignition mechanism (11) 100. Line 102 is fluid-tight gasket 1
04 and is placed into the actuator's Ujifugu 56.

The priming line 38 and the output line 96 are completely surrounded by the actuator housing 56 and the priming receptacle 6.

The container 12 is attached to a bulkhead 108 in a space protected by a fitting 106 , ie, an engine room 110 of a vessel 112 with an engine 114 .

Upon actuation of fire suppression device 10, fire suppression material (not shown) is released from container 12 by manually grasping handle 94 and pulling it away from its resting position against perforated plate 88, thereby causing cable 82 to be released. Transfer within conduit 84. The movement of the cable 82 causes the pulley 44 and drive gear 60 to rotate counterclockwise as shown in the third figure. The 600 rotations of the drive gear rotate the driven gear 62, which tensions the drive spring 48 and stores a certain amount of mechanical energy resulting from the rotation of the gear assembly 46.

The rotation of the drive gear 60 and the driven gear 62 continues as described above until the drive gear 60 reaches a point (approximately the end of a full 360 degree rotation) when the driven gear (12) 62 leaves the outer tooth of the drive gear 60 and enters the notch 76. It continues like this.

At this point, driven gear 62 and thereby armature 64 are free to rotate independently of drive gear 60.

Moreover, it does this rapidly under the influence of the tensioned drive spring 48. Such rotational movement of armature 64 generates an electrical signal having the characteristics necessary to convert the stored mechanical energy into electrical energy and ignite detonator 34.

FIG. 4 shows a typical waveform produced by actuator 16. The waveform consists of a rapid rising section 116, a generally horizontal intermediate section 118, and a gradually descending parabolic falling section 120.

Cable 82 is looped around pulley 44 when handle 94 moves and actuator 16 is thereby actuated. Actuator 16 will not operate until cable 82 is manually rewound around pulley 44. ...the bundle 94 remains in the moving position until the cable 82 (13) is re-wound to prevent the fire from being removed from the vessel 1.
2 also acts as a display signal to release.

In a typical system, the voltage produced by alternator 50 rapidly rises to a level of 36 volts and remains at that voltage for a time interval of 2 to 6 seconds. A conventional detonator, such as a DuPont type E111 detonator 14, will ignite at 0V.
Requires 500 milliamps for C2 milliseconds. Since the resistance of the E111 DuPont detonator is approximately 1 ohm, one skilled in the art will recognize that actuator 16 can send a signal 30 times more often than it takes to ignite the detonator over a time interval that far exceeds the time required for one ignition. It turns out that it comes out. The electrical signal emitted by the actuator 16 thus further ensures trouble-free and predictable ignition of the initiating charges 14, and one actuator 16 can be used to ignite a plurality of initiating charges 14, if desired.

Those skilled in the art will also know that while rotating the gear assembly 40 and storing mechanical energy in the drive spring 48.

The armature 64 is rotated slowly within the alternator 50 (14
), thus causing the drive spring 48 to be released and the armature 64
It can also be understood that it generates an electrical signal of opposite polarity to that produced when rotating rapidly.

A blocking diode 98 in one of the lines 96 prevents electrical signals of opposite polarity from being transmitted to the detonator filter 4.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a ship with a fire suppression vessel installed in the engine area; Figure 2 is a partial representation of the complete system with actuators, fire suppression equipment, cable pulley mechanism and remote control station. 6 is a sectional view taken along line 6-6 in FIG. 1, and FIG. 4 is a diagram showing electrical waveforms generated by the actuator. 10. ...Fire suppressor 12...Container 1
4... Explosive charge 16... Actuator 18... Remote control station 20
...Mechanical link device 60 ...Explosion
Membrane 34...Detonator 44...
Pulley 48... Drive spring 50...
...DC generator (15) 60... Drive gear 62... Driven gear 64... Armature 100...
・Automatic electronic ignition mechanism patent applicant Fike Metal Products Corporation (16)

Claims (1)

[Scope of Claims] 1. Means for selectively delivering a quantity of a hazard-suppressing substance, and an electrically actuated detonator connected to the delivery means and actuated in response to sensing an electrical signal of a predetermined electrical characteristic. a means connected to the detonator for selectively generating an electrical signal having predetermined electrical characteristics; and a means connected to and activating the generating means to generate an electric signal in response to its own movement. A hazard control device comprising a manually operated mechanical linkage. 2. a means for selectively delivering a quantity of a hazard-suppressing substance;
an electrically actuated detonator connected to the nuclear delivery means and actuated in response to sensing an electrical signal of a predetermined electrical characteristic; a manual actuation means remote from the delivery means; and in response to actuation of the manual actuation means. operatively connecting the manual actuation means and the detonation means for delivering an electrical signal of predetermined electrical characteristics to the detonation means and comprising an electrical signal generator having a movable actuation member; A hazard control device comprising a mechanical linkage operatively connecting an actuating member and a manual operating means for moving the member and generating an electrical signal after actuation of the manual operating means. 3. The hazard control device according to claim 2, wherein the movable actuating member is a gear assembly. 4. A patent claim comprising means connected to the actuating member for storing the mechanical energy produced by moving the actuating member and for rapidly releasing the mechanical energy to drive a generator for generating an electrical signal. The danger control device according to item 2 of the scope. 5. The danger suppression device according to claim 4, wherein the means for accumulating mechanical energy is constituted by a spring. 6. Activating a hazard suppression device comprising a container containing a hazard suppression substance, a frangible seal sealing the container, and an electrically ignited detonator that selectively ruptures the seal; The method comprises: extracting a specific amount of mechanical energy, converting the mechanical energy into an electrical signal with optical properties to ignite the explosive, and applying this electrical signal to the explosive. A method of initiation consisting of igniting a detonator using a detonator and then rupturing a frangible seal. 2. The method of claim 6, comprising storing a specified amount of mechanical energy and then rapidly releasing the mechanical energy. 8. A mechanical-electric actuator for use with an electrical ignition primer for a fire suppression device, a selectively rotatable pulley, and a drive gear operably connected to the pulley for rotation therewith; a driven gear operably connected to the drive gear; a means operably connected to the driven gear for storing mechanical energy; and a driven gear operably connected to the mechanical energy storage means for converting mechanical energy into electrical energy. A mechanical-electrical actuator comprising means for: 9. The electromechanical actuator according to claim 8, wherein the drive gear has a structure in which a notch is formed around the drive gear. 10. The mechanical energy storage means consists of a spring (3
) The electromechanical actuator according to claim 8. 11. The electromechanical actuator according to claim 8, wherein the energy conversion means comprises a DC generator. 12. The electromechanical actuator of claim 8 including means for rotating the booth from a remote station. 16. A mechanical-electric actuator for use with an electrical ignition initiator for a fire suppression device, comprising: 1 means for storing mechanical energy and then rapidly releasing this mechanical energy;
and a means for converting mechanical energy into electrical energy operably connected to the mechanical energy storage and release means. 14. A pulley in which the mechanical energy storage and release means is selectively rotatable; a drive gear operably connected to the pulley to rotate together with the pulley; and a driven gear operably connected to the drive gear. , and a spring operably connected to the driven gear (4). 15. The electromechanical actuator according to claim 13, wherein the energy conversion means comprises a DC generator. 16. The electromechanical actuator of claim 16 including means for rotating the pulley from a remote station.