JPH05141651A - Earthquake proof automatic fire extinguisher - Google Patents

Abstract

PURPOSE:To enable a horizontal fixing and a vertical fixing of an earthquake proof automatic fire extinguisher to be attained, release a restriction in layout of an inner part of the device and improve a service work and the maintenance. CONSTITUTION:A side wall of an electrical conductive container 1 having a vertical electrode 3 and a mercury holding recess 1a of an earthquake proof automatic fire extinguisher is provided with a mercury holding recess 9 and a lateral electrode 10 and further it has a fixing part for either a horizontal surface or a vertical surface of a main body of the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant automatic fire extinguisher which stops combustion when an earthquake or the like occurs.

[0002]

2. Description of the Related Art FIG. 3 is a sectional view showing an example of a conventional earthquake-resistant automatic fire extinguisher. In the figure, 1 is a conductive container having a recessed portion 1a for holding mercury at the bottom, and 2 is mercury which is always held in the recessed portion 1a. A vertical electrode 3 is electrically connected to the terminal 5a via the pin 4. Reference numeral 6 denotes a conductive lid, which is electrically connected to the conductive container 1 and the terminal 5b. 7 is an insulator such as glass, and the pin 4 and the lid 6
To prevent short circuit. 8 is a case which covers the whole.

Next, the operation will be described. When a current is passed between the terminals 5a and 5b of the above device, a current flows in the order of the terminal 5a, pin 4, electrode 3, mercury 2, conductive container 1, lid 6 and terminal 5b, and combustion is continued. However, when vibration occurs due to an earthquake or the like, the mercury 2 moves from the mercury holding recessed portion 1a of the conductive container 1, stops contacting with the vertical electrode 3, and cannot be energized. Utilizing this phenomenon, the control circuit of the device body (not shown) stops the combustion.

FIG. 4 shows an example of a combustor using kerosene as a fuel, to which a seismic resistant automatic fire extinguisher is horizontally mounted. Next, the operation will be described. The air sent by the combustion blower 33 is sent to the burner 30 through the joint 34. On the other hand, kerosene, which is fuel, is sent from the constant oil leveler 35 to the burner 30 through the oil nozzle 36, burns, and is exhausted through the heat exchanger 31 and the header 32. However, the kerosene is supplied by an oil pump. Instead, it is performed by the blowing pressure of the blower 33 for combustion. That is, the pressure conduit 37 pushes down the oil level in the constant oil level gauge 35 to flow kerosene.

In this system, the main factors that control the flow rate of kerosene are the inner diameter of the oil nozzle 36 at the blower pressure and the oil head drop (oil head) between the oil nozzle tip and the oil leveler 35. Since the flow rate of kerosene is determined by these factors, after the blower for combustion is selected, the oil head is almost determined and cannot be changed so much. FIG. 4 is an example in which the position of the constant oil level gauge 35 is raised by the mounting base 38. The operating conditions of the earthquake-resistant automatic fire extinguisher are J
The IS value or the like specifies the gull value, the tilt angle of the product, or the like. The seismic resistant automatic fire extinguisher may be attached to any part of the product, but the operating conditions are determined as a product, so if the installation is set at various places, the operating conditions of the device alone will be adjusted accordingly. You have to decide, and you need to increase the types. Conventionally, the number of types has been increased as much as possible by mounting it on the bottom of the product. In FIG. 4, the blower 33 for combustion is located on the left side, the burner section 30 and the joint 34 are located on the right side, and the joint 34 is located on the inner center side. The automatic fire extinguisher 39 is attached by screws.

[0006]

In the conventional seismic-resistant automatic fire extinguisher, the location where the mercury 2 collects is limited to the mercury holding recess 1a at the bottom of the conductive container 1, so that the attachment must be horizontal. I won't. Therefore, when the seismic resistant automatic fire extinguisher is maintained, the constant oil level gauge 35, the oil nozzle 36, and the mounting base 38 must be removed, which causes a problem that the number of service steps is increased.

The present invention has been made to solve the above-mentioned problems, and horizontal setting and vertical mounting are made possible by setting an additional recess for holding mercury and a horizontal electrode facing it, and The purpose is to relax layout restrictions and improve service and maintainability.

[0008]

In order to achieve the above object, an earthquake-resistant automatic fire extinguisher according to the present invention is provided with a recess for holding mercury at the bottom of a conductive container and a space directly above the recess for holding mercury. In an earthquake-resistant automatic fire extinguisher equipped with a vertical electrode, an additional hollow portion for holding mercury formed on the side wall of the conductive container, a horizontal electrode opposite to this, and a horizontal electrode, and these devices. The main body is provided with a mounting portion on a horizontal surface or a vertical surface.

[0009]

The seismic resistant automatic fire extinguisher according to the present invention is provided with the additional recessed portion for holding mercury and the lateral electrode on the side surface of the conductive container, so that the mounting direction to the device main body can be changed from horizontal to vertical. Since mercury is present between the additional recessed portion and the horizontal electrode and the function of earthquake-resistant automatic fire extinguishing can be exerted, a plurality of mounting directions can be selected.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The same parts as those in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 9 is an additional recess for holding mercury, which is formed on the side wall of the conductive container 1, and 10 is a horizontal electrode attached to the pin 4, which is spaced apart from the additional recess 9 for holding mercury. It is opposite. Reference numeral 11 is a mounting flange provided in the opening of the case 8 and has a screw hole 12 to form a mounting portion on the horizontal surface or vertical surface of the apparatus body of these devices. FIG. 2 is an explanatory view showing an example in which the seismic resistant automatic fire extinguisher 39 of the present invention is detachably attached from the side to the vertical surface of the lower side of the equipment main body through the above-mentioned attachment portion, and the same portion as FIG. Alternatively, the corresponding parts are designated by the same reference numerals and the description thereof is omitted.

According to the above-described embodiment, when the mounting flange 11 of the case 8 is held vertically so that the additional mercury-holding recess 9 is located directly below the horizontal electrode 10, mercury is added to the mercury-holding recess 9. Since it moves inside and is energized, Fig. 1
It can exhibit the same function as the horizontal earthquake-resistant automatic fire extinguisher shown in. Therefore, if the vertically-held mounting flange 11 is connected to the vertical sheet metal 40 located on the lower side surface of the device body shown in FIG. An earthquake-resistant automatic fire extinguisher that is equivalent and easy to service and maintain can be installed.

The additional recess for holding mercury and the horizontal electrode of the present invention are not limited to one set, and a plurality of sets can be provided. In the above embodiment, a single mounting flange is provided as a mounting portion on the horizontal surface or vertical surface of the device body,
The mounting flange on the horizontal surface and the mounting flange on the vertical surface may be separately provided and selectively used. Further, the mounting flange of FIG. 2 may be located either outside the sheet metal or inside the sheet metal, and the sheet metal to which the mounting flange is previously coupled may be fitted to the device body.

[0013]

As described above, according to the present invention, a vertical electrode of an earthquake-resistant automatic fire extinguisher, an additional recess for holding mercury on the side wall of a conductive container having a recess for holding mercury, and a horizontal electrode are provided. Since it is equipped with a mounting part on the horizontal surface or vertical surface of the equipment main body, it is possible to change the mounting direction of the earthquake-resistant automatic fire extinguisher, thereby relaxing the restrictions on the internal layout of the equipment and By mounting, various effects such as facilitating attachment and detachment of the earthquake-resistant automatic fire extinguisher during service and maintenance can be achieved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an earthquake-resistant automatic fire extinguisher according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which the device of FIG. 1 is attached to a vertical surface of a device body.

FIG. 3 is a vertical cross-sectional view of a conventional earthquake-resistant automatic fire extinguisher.

FIG. 4 is an explanatory view showing a state in which the device of FIG. 3 is attached to the device body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conductive container 1a Mercury holding cavity 2 Mercury 3 Vertical electrode 4 pin 5a terminal 5b Terminal 6 Lid 7 Insulator 8 Case 9 Additional depression for mercury retention 10 Horizontal electrode 11 Flange for mounting

Claims (1)

[Claims] 1. A bottom portion of a conductive container is provided with a mercury-holding hollow portion and a vertical electrode directly opposite to the mercury-holding hollow portion, and is provided between the vertical electrode and the mercury-holding hollow portion. In the earthquake-resistant automatic fire extinguisher that stops the combustion by making mercury intervene to make it possible to energize and to stop energizing by the movement of mercury when vibration occurs, an additional recess for mercury holding formed on the side wall of the conductive container and this An earthquake-resistant automatic fire extinguisher, comprising horizontal electrodes facing each other and spaced apart from each other, and parts for attaching these devices to a horizontal plane or a vertical plane of the equipment body.