JP2000197714A - Fire extinguishing device for rack type automatic warehouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance reliability in the case where a preoperated type sprinkler is adopted to a rack type automatic warehouse. SOLUTION: This fire extinguishing device for a rack type automatic warehouse in which a support unit made by connecting a plurality of load receiving members and lattices to a pair of supports is erected on the floor surface so as to be perpendicular to the traveling route on both sides of the traveling route of a stacker crane, and in which adjacent support units are mutually connected by horizontal connecting members, horizontal braces, and rear braces vertically erected in prescribed intervals is a preoperated type sprinkler having a preoperated type flow water detecting device 12, a sprinkler head 1, a pipeline connecting the preoperated type flow water detecting device 12 and the sprinkler head 1, a smoke detector 7a provided to the ceiling part of the warehouse, an electric wire 8 connecting the smoke detector 7a and the preoperated type flow water detecting device 12, a flame detector 9 arranged above the crane traveling route and both end parts of the rack at prescribed intervals so that flames rising from any part of the rack can be detected, and an electric wire 8a connecting the flame detector 9 and the preoperated type flow water detecting device 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack type automatic warehouse and, more particularly, to a fire extinguisher.

[0002]

2. Description of the Related Art FIG. 5 is a front view of a rack type automatic warehouse. In the figure, a is a rack type automatic warehouse. The rack-type self-propelled warehouse a is constructed of an outer wall b, a roof c, a number of supports d having a number of receiving stands e erected on a floor surface g, a stacker crane f, and the like.

FIG. 6 is an enlarged perspective view of a rack type automatic warehouse. In the figure, a column d of an automatic warehouse a is composed of a plurality of receiving materials e fixed in advance at a certain interval to a pair of columns d at a factory, and a column lattice m diagonally fixed to the pair of columns d.
And is transported to the installation location of the automatic warehouse a. The transported column unit is lifted by a crane truck or the like at the installation location, and is erected at regular intervals along a traveling path of the stacker crane f (not shown because the figure is a rear view). The standing adjacent column units are connected to a gusset j provided on the column d at regular intervals by a horizontal connecting member h and a horizontal brace i. The back surfaces of the support units are connected to a gusset n provided on the support d by a back brace k.

In such a rack type automatic warehouse,
Sprinklers must be installed to prevent fire. However, if the sprinkler head is damaged during loading and unloading of luggage, the stored luggage will be damaged by water, and a pre-actuated sprinkler may be installed. FIG. 2 is a flow sheet of a pre-actuated sprinkler. In the figure, 1 is a sprinkler head, 2 is a pre-actuated valve,
3 is a control panel, 4 is a control valve, 5 is a primary side pipe, 6 is a secondary side pipe, 7 is a fire detector, and 8 is a wiring.

The pre-actuated sprinkler is provided with a pre-actuated running water detecting device between a pump (not shown) and a sprinkler head 1. The secondary pipe 6 is filled with compressed air, and the primary pipe 5 between the pump and this valve is filled with pressurized water. Further, a control panel 3 is attached to the pre-operation type running water detecting device, and a wire is connected from the panel 3 to a fire detector 7 provided exclusively. With the occurrence of a fire, first, the dedicated fire detector 7 operates, the pre-operation valve 2 of the pre-operation type running water detection device opens, and water flows toward the sprinkler head 1. Furthermore, when the fire spreads and the sprinkler head 1 operates with heat, compressed air is released, followed by discharging water to start fire extinguishing activities. This method uses a fire detector 7 that is faster than a sprinkler head in order to minimize the disadvantage of "water discharge delay" of releasing water after releasing compressed air.
The pre-actuated running water detection device is operated to send water to the head 1. In the event that the sprinkler head 1 is damaged or the like, the pre-actuated type immediately releases compressed air. However, since the fire detector 7 is not activated, the valve 2 does not release and thus does not discharge water. Only emits an alarm when the pressure is reduced. That is, the pre-actuated sprinkler is a system that can also prevent accidental water discharge due to an accident or the like.

[0006] When this pre-operation type sprinkler is installed in a rack type automatic warehouse, a smoke detection type fire detector 7 is mounted on the ceiling surface of the warehouse, and the pre-operation valve 2 is detected by detecting smoke caused by a fire. open.

[0007]

However, many rack-type automatic warehouses are about 30 m tall, and even if a fire occurs below, it takes time for smoke to reach the fire detector 7 on the ceiling. If the smoke detector 7 does not detect the smoke,
Even if the sprinkler head 1 operates by sensing the temperature of the fire, no water is discharged, so there is a problem in the reliability of the initial fire extinguishing.

The present invention has been made in view of the above-mentioned problems of the conventional pre-actuated sprinkler, and has the advantage that the reliability of the initial fire extinguishing is improved while taking advantage of the advantage of the pre-actuated sprinkler that there is no risk of water damage due to malfunction. An object of the present invention is to provide a fire extinguisher for a rack-type automatic warehouse that can be secured.

[0009]

In order to achieve the above object, a fire extinguisher system for a rack-type automatic warehouse according to the present invention is provided by connecting a plurality of load receiving materials and lattices to a pair of columns on both sides of a traveling path of a stacker crane. Of a rack type automatic warehouse having a rack in which adjacent pillar units are erected on the floor surface so as to be orthogonal to the traveling path, and adjacent pillar units are vertically connected at predetermined intervals by horizontal connecting members, horizontal braces and rear braces. A fire extinguisher, wherein the fire extinguisher is a pre-operated running water detector, a sprinkler head, a pipe connecting the pre-operated running water detector to the sprinkler head, and a smoke detector provided on a ceiling of a warehouse. Electrical wiring for communicating the smoke detector and the pre-operated running water detection device; and any part of the rack at a required distance above the crane travel path and both ends of the rack. A flame detector which is arranged so that it can be detected even up flame, a pre-activated sprinkler comprising and an electric wire to contact and the pre-activated water flow detection device said inflammatory sensor.

Next, the operation of the present invention will be described. Flame detectors are installed at required intervals above the crane travel path and both ends of the rack so that it can detect the flame that has risen from any part of the rack, and the flame detector and the pre-actuated running water detector are electrically connected. Contacted by wiring. Therefore, the smoke or flame detector, whichever comes first, opens the pre-actuated valve,
The reliability of initial fire extinguishing is greatly improved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a flow sheet of a fire extinguisher of a rack type automatic warehouse of the present invention. FIG. 3 is a plan view of the rack-type automatic warehouse, showing the arrangement of the smoke detector and the flame detector. In these figures, the same reference numerals are given to the same parts as those described with reference to FIGS. 2, 5, and 6 as the related art.

In these figures, reference numeral 1 denotes a sprinkler head having a link provided with a fuse. When the fuse is heated to about 70 ° C., it melts, the link scatters with the cap, and the orifice is opened. Water spouts out, hits the deflector and diffuses water in all directions. Reference numeral 2 denotes a pre-operating valve, which has a check valve structure or the like, has a built-in solenoid for starting, and opens the valve by a signal from the control panel 3. Pre-actuation valve 2 and control panel 3
Constitutes the pre-actuated running water detection device 12.

A primary pipe 5 upstream of the pre-actuating valve 2 is pressurized by water pressure. Reference numeral 6 denotes a secondary pipe downstream of the pre-actuating valve 2, which is pressurized by air pressure. Reference numeral 7a denotes a smoke detector, which uses an ion spot to detect smoke by using the property of changing the flow of ion current when smoke enters, and a photoelectric spot to detect light scattering or attenuation by smoke. There is. 8 is a smoke detector 7a
It is a wiring which connects the pre-operation type running water detection device 12.

Reference numeral 9 denotes a flame detector. Flame detectors include an infrared spot type detector and an ultraviolet spot type detector. Infrared flame detectors emit a fire signal when the change in infrared radiation emitted from the flame exceeds a certain amount, and is activated by a change in the amount of light received by the light receiving element due to local infrared rays. is there. Out of the fire spectrum
A large peak appears around 4.4 μm in the infrared region.
This is the resonance emission spectrum of CO ₂ of the combustion product gas, which is not observed in natural light or artificial light. Many infrared systems use an optical bandpass filter to detect only this 4.4 μm emission spectrum. Further, in order to prevent a malfunction due to disturbance light noise, only a frequency of 2 to 15 Hz, which is a fluctuation of a flame when burning, is amplified to determine a fire. In addition, three wavelength bands (4.0 / 4.4 /
(5.0 μm) to further reduce malfunctions caused by natural light and artificial light.

FIG. 4 shows the sensing range of the flame detector 9. The flame detector 9 can detect a flame in a full cone range of 90 ° C. and a distance of 60 m.

Thus, as shown in FIGS. 1 and 3, the rack-type automatic warehouse of the present invention has a plurality of loading members and lattices connected to a pair of columns on both sides of the traveling path 1 of the stacker crane. Rack-type automatic warehouse having a rack unit in which a plurality of support units are erected on the floor so as to be orthogonal to the traveling path, and adjacent support units are vertically connected at predetermined intervals by a horizontal connecting member, a horizontal brace, and a back brace. The fire extinguisher according to claim 1, wherein the fire extinguishing device includes a pre-operation type running water detection device 12, a sprinkler head 1, a secondary side pipe 6 that connects the pre-operation type running water detection device 12, and the sprinkler head 1, A smoke detector 7a provided on the ceiling of the warehouse, an electric wiring 8 for connecting the smoke detector 7a and the pre-operation type running water detection device 12, and a crane travel path 11 and a lane as shown in FIG. A flame detector 9 arranged at a required interval above both ends of the rack 10 so as to be able to detect a flame rising from any part of the rack 10, and the flame detector 9 and the pre-operation type running water detection device 12; It is a pre-actuated sprinkler having an electrical wiring 8a for communication.

The interval and position of the flame detector 9 can be easily determined from the flame detection range shown in FIG. 4 and the arrangement of the rack 10 in the warehouse.

Next, the operation of the present embodiment will be described. A flame detector 9 which can detect a flame that has risen from any part of the rack 10 is added to a pre-actuated sprinkler provided with a conventional smoke detector 7a, and the flame detector 9 and the pre-actuated water detector 12 are connected. Contact was made with the electric wiring 8a. Therefore, the earlier of the smoke or flame detectors 7a and 9 detects the pre-actuated valve 2, which greatly improves the reliability of the initial fire extinguishing as compared with the conventional one. That is, if the flame rises from anywhere in the rack 10, one of the flame detectors 9 operates to open the pre-actuated valve 2, and if only the smoke is generated without the flame rising due to the steamed state, the smoke detector is activated. 7a operates to open the pre-actuated valve. Therefore, the sprinkler head 1 nearest to the fire place is thermally activated and water is released at the same time, so that the initial fire extinguishing is reliably performed.

The present invention is not limited to the embodiment described above, and various changes can be made without departing from the gist of the invention.

[0020]

As described above, the fire extinguishing system for a rack-type automatic warehouse according to the present invention has a flame detector added to a pre-actuated sprinkler having a smoke detector. It has an excellent effect that reliability in initial fire extinguishing is greatly improved as compared with an actuated sprinkler.

[Brief description of the drawings]

FIG. 1 is a flow sheet of a fire extinguisher of a rack type automatic warehouse according to the present invention.

FIG. 2 is a flow sheet of a conventional pre-actuated sprinkler.

FIG. 3 is a plan view of a rack-type automatic warehouse.

FIG. 4 is a perspective view showing a sensing range of a flame detector.

FIG. 5 is a front view of a rack-type automatic warehouse.

FIG. 6 is an enlarged perspective view of a rack-type automatic warehouse.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sprinkler head 2 Pre-operation valve 7a Smoke detector 8 Electric wiring 9 Flame detector 10 Rack 12 Pre-operation type running water detector

Claims (1)

[Claims] 1. A strut unit formed by connecting a plurality of load receiving materials and lattices to a pair of struts on a floor surface on both sides of a traveling path of a stacker crane so as to be orthogonal to the traveling path. A fire extinguisher for a rack-type automatic warehouse having a rack in which units are vertically connected at predetermined intervals by a horizontal connecting member, a horizontal brace and a back brace, wherein the fire extinguishing device is a pre-operation type running water detection device, a sprinkler head, A pipe for communicating the pre-operation type running water detection device with the sprinkler head, a smoke sensor provided on a ceiling of the warehouse, and an electric wiring for communicating the smoke sensor and the pre-operation type running water detection device, A flame detector arranged at a required interval above the crane traveling path and both ends of the rack so as to be able to detect a flame rising from any part of the rack, and the flame detector and a pre-operated running water A fire extinguisher for a rack-type automatic warehouse, comprising a pre-actuated sprinkler having electrical wiring for communicating with a detection device.