JPH02168972A - Fire extinguishing equipment - Google Patents

Abstract

PURPOSE:To automatically supply water when the water of a water tank is decreased while the water is spread and to enough sprinkle the water regardless of the quantity of the stored water by providing the water tank of a flush toilet, for which the water is automatically supplied from an upper water pipe by an automatic water feeding valve device when the quantity of the stored water is decreased, as a water source and providing a pressurized supplying device to supply the water of the water tank through pipe laying to a sprinkler head. CONSTITUTION:For the flush toilet, a flow switch 2 is provided to supply the water to the decrease of the water quantity and the water in a water tank 1 of such a toilet is used for the flush toilet. In the internal part of the water tank 1, a sucking pipe 7 is provided and for this pipe, a foot valve 6 is provided in a tip linked to a water feeding pump 5 to pressurize the inside of pipe laying 4, to which a closed sprinkler head 3 is connected. The water in the pipe laying 4 is monitored by a pressure switch 8 and when the pressure is reduced in the pump secondary side pipe laying 4 by any causes, the pipe laying is pressurized up to the prescribed pressure by the pressure switch 8. When fire is generated, the sprinkler head 3 is opened and the pressurized water is emitted. Then, the water starts spreading and the pressure in the pipe laying 4 is reduced. Then, when the pressure switch 8 is operated and the water feeding pump 5 is operated through a receiver 9, a fire alarm bell 10 is rung simultaneously.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to fire extinguishing equipment, and in particular to a fire extinguishing system suitable for relatively small buildings and general residences where sprinkler fire extinguishing equipment has not been installed up to now. It is related to equipment.

[Prior art]

Fire extinguishing equipment using a water spray head such as a sprinkler head has conventionally been installed mainly in buildings, factories, etc., but in recent years it has been desired to install it in general residences as well.

[Problem to be solved by the invention]

It is desirable to install fire extinguishing equipment such as sprinklers in ordinary houses, but it is more difficult to secure water for extinguishing fires in ordinary houses than in buildings or factories, and usually the water supply must be used. If the piping for fire extinguishing equipment that uses sprinklers etc. is branched from the water supply piping, the water in the piping on the fire extinguishing equipment side will not circulate until the sprinkler head operates, so it will become dead water, and if it flows out to the water supply side. Drinking water will be contaminated.

[Means for Solving Problem 1] The present invention aims to provide a fire extinguishing system that does not mix dead water into the water supply from piping for the fire extinguishing system and is suitable for general residential use. In the fire extinguishing equipment to which the sprinkler head is connected, the water source is the water tank of the flush toilet, which is supplied with water from the city water supply by an automatic water supply valve device when the water storage level decreases, and the water from the tank is sent to the sprinkler head via piping. An additional supply device is provided to supply the
The pressurized supply device is characterized in that it is activated by a pressure switch activated by a drop in pressure in piping, or by a fire signal from a fire detector.

[For production]

By using a toilet water tank as a water source with an automatic replenishment device to cope with a decrease in water storage, the entire fire extinguishing system is separated from the water supply, so the effect of dead water on the water supply is eliminated, and water spray heads such as sprinkler heads Water is automatically replenished into the water tank even during watering, allowing for long-term watering.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of an embodiment of the fire extinguishing equipment according to the present invention,
1 is a water tank of a flush toilet, 2 is a flow switch that monitors the amount of water stored in the water tank 1, 3 is a closed sprinkler head placed in the building, 4 is piping, 5 is a water pump, 6 is a foot valve, 7 is the suction pipe, 8 is the pressure switch, 9 is the receiver,
10 is a fire alarm bell, 11 is a stop switch, 12 is a priming valve, 13 is a flush toilet drain valve, 14 is a toilet bowl, 15 is a water pipe, and 16 is a water tap controlled by the flow switch 1.

Flow switch 2 for replenishing water when the amount of water decreases
The water in the water tank 1 of the flush toilet is normally used for the flush toilet.

Inside the water storage tank 1, there is provided a suction pipe 7 having a foot valve 6 at its tip and connected to a water pump 5 that pressurizes the inside of the pipe 4 to which the closed sprinkler head 3 is connected. The water in the pipe 4 is normally monitored by a pressure switch 8, and if the pressure in the pipe 4 on the secondary side of the pump decreases for some reason, the water is pressurized to a predetermined pressure by the pressure switch 8.

When a fire occurs, the sprinkler head 3 opens due to the hot air flow caused by the fire, and pressurized water starts spouting out. When watering starts, the pressure in the pipe 4 decreases, and the pressure switch 8 operates to operate the water pump 5 through the receiver 9 and at the same time ring the fire alarm bell 10. The flow switch 2 operates to open the water tap 16 and water is supplied from the water pipe 15 to the water storage tank 1, which has been sucked in by the water pump 5 and the amount of water has decreased. Here, it is desirable that the relationship between the amount of suction water and the amount of water supplied is approximately the same, or that the amount of suction water is slightly smaller. A stop switch 11 is provided between the pressure switch 8 and the receiver 90, and stops watering when the sprinkler head 3 malfunctions or after a fire is extinguished.

Here, the suction pipe 7 to the water pump 5 has a foot valve 6 at its tip.
is installed in the water tank 1, but the valve 1 is connected from the water tank 1 to the valve 1.
You may use a joint to pull it in between 3. Further, the water pump 5 may be started by providing a fire detector at the location where the sprinkler head 3 or the like is installed. In this case, an open type sprinkler head can also be used as the water spray head.

〔Effect of the invention〕

The fire extinguishing equipment according to the present invention uses the water tank of the flush toilet as the water source, so the water supply and the piping for the fire extinguishing equipment are not connected, so the water in the piping for the fire extinguishing equipment mixes with the water in the water supply piping. When the water in the water tank decreases during watering, it is automatically replenished, so there is an effect that sufficient water can be sprinkled regardless of the amount of water stored. In addition, by using the water tank of a flush toilet, which is also found in ordinary houses, as the water source, it is possible to obtain an inexpensive and easy-to-install fire extinguishing system that can be installed not only in buildings where sprinkler fire extinguishing equipment has not been installed until now, but also in ordinary houses. There is.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an embodiment of the fire extinguishing equipment according to the present invention. 1...Water tank, 2...Flow switch, 3...Closed splinter head, 4...Piping, 5...Water pump, 8...Pressure switch, 14...Toilet bowl . Patent application: Jinnomi Disaster Prevention Industry Co., Ltd. No. 1 (¥1

Claims (3)

[Claims] (1) In fire extinguishing equipment where a water spray head such as a sprinkler head installed in a building is connected to the piping, a water tank in a flush toilet is supplied with water from the water supply system by an automatic water supply valve device when the water storage level decreases. A fire extinguishing equipment, characterized in that it is provided with a pressurized supply device serving as a water source and supplying water from the water tank to a water spray head via the piping. (2) The sprinkler head installed in the pipe is a closed type sprinkler head, and the pressure supply device for pressurizing the water in the pipe is connected to the pipe to reduce the pressure in the pipe to a predetermined value or less. 2. The fire extinguishing equipment according to claim 1, wherein the fire extinguishing equipment is operated by a pressure switch that is activated when the fire extinguishing equipment is activated. (3) The fire extinguishing equipment according to claim 1, wherein the fire extinguishing equipment has a fire detector, and the pressurized supply device is operated by a fire signal from the fire detector.