JP4471345B2 - Sprinkler equipment - Google Patents

Description

  The present invention relates to a sprinkler apparatus that is installed in a general house and sprays water in the event of a fire, and more particularly to a sprinkler apparatus that is connected to a water supply pipe that is piped to each house.

In recent years, disaster prevention equipment for detached houses has attracted attention, and the momentum for installing sprinkler equipment is increasing in ordinary detached houses. As a sprinkler device for general houses, there is one as disclosed in Patent Document 1, for example. In patent document 1, the water supply pipe piped to each house is branched on the way, and the sprinkler is connected to the diversion pipe after branching. Water diversion pipes other than the diversion pipe to which the sprinkler is connected are provided with a water stop valve. When the operation of the sprinkler is detected, this water stop valve is closed to give priority to the water diversion pipe to which the sprinkler is connected. It is designed to supply water.
JP 2003-225320 A

However, the conventional sprinkler device has the following problems.
In the case of the above-mentioned Patent Document 1, a water-use instrument is connected to the end of a water-dividing pipe to which a sprinkler is connected, and water in the water-dividing pipe is prevented from decaying by replacing the water in the water-dividing pipe every time it is used. In addition, it is possible to check the running water of the sprinkler. However, if a water-using device is used during the operation of the sprinkler, the water pressure or flow rate supplied to the sprinkler decreases, and there is a possibility that it cannot be fully operated. Therefore, in order to operate the sprinkler reliably, in addition to the water stop valve provided in the water diversion pipe other than the water diversion pipe to which the sprinkler is connected, a water stop valve is also required between the sprinkler connection part and the water using device. It becomes a complicated structure.

  Even if a sprinkler is connected directly to a water supply pipe that is piped to a house and a water-use device is connected to the downstream part, if the water-use device is used during the operation of the sprinkler, The flow rate may not be secured sufficiently.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a sprinkler device that can reliably spray water at the time of operation of the sprinkler with a simple configuration.

In order to solve the above-described problem, a sprinkler device according to the present invention is a residential sprinkler device in which a sprinkler is connected to a water supply pipe that is piped in a house, and a water-use instrument is connected to a downstream portion from the connection portion of the sprinkler.
The water supply pipe has a flow control valve between the sprinkler connection and the water use device, and is connected to the flow control valve to control the flow control valve to be closed or reduced in the event of a fire. part Ri name provided,
The sprinkler includes a water pressure or flow rate detection unit, and the control unit controls the opening of the flow rate control valve so as to maintain the water pressure or flow rate detected by the water pressure or flow rate detection unit at a predetermined value or more. It is configured as.

  Further, the sprinkler device according to the present invention is characterized in that the control unit is connected to the sprinkler, detects the occurrence of fire by detecting the operation of the sprinkler, and closes the flow rate control valve or reduces the opening degree. Yes.

  Further, in the sprinkler device according to the present invention, the control unit is connected to a fire detector provided in the house, detects a fire by receiving a signal from the fire detector, and closes or opens the flow control valve. It is configured to reduce the degree.

  Furthermore, the sprinkler device according to the present invention is characterized in that the water supply pipe is branched downstream from the flow rate control valve, and a water-use instrument is connected to the end of each branch water supply pipe.

  According to the sprinkler device of the present invention, the flow control valve is provided between the sprinkler connection in the water supply pipe and the water-use appliance, and the opening degree is reduced by the control unit when a fire occurs. By providing a flow control valve, the water pressure or flow rate of the sprinkler can be secured in the event of a fire, and reliable spraying of water can be performed with a simple configuration. In particular, since water-use equipment is connected to the downstream part of the sprinkler, the water in the pipe is constantly replaced, and the pipe and sprinkler are prevented from corroding and deteriorating due to water decay. With the configuration, it is possible to spray water reliably from the sprinkler in the event of a fire.

  Further, according to the sprinkler device according to the present invention, the control unit detects a fire by detecting the operation of the sprinkler. Therefore, the fire is detected with a simple configuration without adding a device, and the opening degree of the flow control valve is adjusted. be able to.

  Furthermore, according to the sprinkler device according to the present invention, the control unit detects a fire by receiving a signal from the fire detector. Therefore, the opening degree of the flow control valve can be adjusted without waiting for the operation of the sprinkler. A sufficient water pressure or flow rate can be ensured more reliably during operation.

  Furthermore, according to the sprinkler device according to the present invention, the water supply pipe is branched downstream from the flow rate control valve, and the water use equipment is connected to the end of each branch water supply pipe, so that the sprinkler device can be used in various ways in the house. It can be connected to a proper water use appliance, and the use of water in the house can be used as it is to confirm the running water of the sprinkler.

  According to the sprinkler device of the present invention, the sprinkler includes a water pressure or flow rate detection unit, and the control unit controls the flow rate control valve so as to maintain the water pressure or flow rate detected by the water pressure or flow rate detection unit at a predetermined value or more. By controlling the opening, the water pressure or flow rate in the sprinkler can be reliably maintained.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall configuration diagram of a sprinkler device according to the present embodiment. FIG. 2 is a layout view of the sprinkler device in the house. In each of these drawings, the sprinkler device in the present embodiment has sprinklers 3 and 3 connected to a water supply pipe 2 piped inside a house 1, and further water-use utensils 7 and 7 used in the house connected to the downstream part thereof. It is.

  The water supply pipe 2 is a synthetic resin pipe or a metal pipe that is generally used as a water pipe, in which ordinary water is drawn into a house. As shown in FIG. 2, the water supply pipe 2 is provided along the ceiling or wall surface of the house. However, the water supply pipe 2 is not limited to a water pipe directly drawn in, and may be water from a water supply tower, middle water, or the like. The water supply pipe 2 supplies water used in the house during normal times, and supplies water for extinguishing fires when a fire occurs. A predetermined water pressure is constantly applied. When water is used in a house, the water pressure in the water supply pipe 2 decreases or the flow rate decreases according to the amount of use.

  As shown in FIG. 1, a sprinkler 3 is connected to the water supply pipe 2 at an upstream portion in the house. As shown in FIG. 2, the sprinkler 3 is installed on the ceiling of each room of the house, and extinguishes fire by spreading water over the room when a fire occurs. In the present embodiment, two sprinklers 3 and 3 are connected to the water supply pipe 2. However, the present invention is not limited to this, and the number of sprinklers 3 can be freely set according to the number of rooms in the house.

  Although the internal structure of the sprinkler 3 is the same as that generally used, it is not shown, but the outline is as follows. The sprinkler 3 includes a cylinder and a piston inside, and a soluble piece made of solder or the like is sandwiched between them. Normally, the piston closes the water outlet. In the event of a fire, the fusible pieces are melted by heat, and the piston moves to open the water outlet, so that the water supplied from the water supply pipe 2 is dispersed. However, the structure of the sprinkler 3 is not limited to this, and any structure may be used as long as it is a sprinkler that receives water supply and sprays water in the event of a fire.

  As shown in FIGS. 1 and 2, the water supply pipe 2 is provided with a branch portion 6 on the downstream side of the sprinkler 3 connection portion, and water is provided at the end of each branched water supply pipe 2a, 2b, 2c. Use tools 7a, 7b, and 7c are connected. The water use appliances 7 and 7 correspond to each appliance in which water is used in the house. The water use instrument 7a connected to the terminal end of the branch water supply pipe 2a is a toilet, and the water use instrument 7b connected to the terminal end of the branch water supply pipe 2b is a bath, and is connected to the terminal end of the branch water supply pipe 2c. The water using device 7c is a general water tap. In the present embodiment, the water supply pipe 2 is branched into three at the branching portion 6 and connected to each one of the water use devices 7. However, the number of branches and the type of the water use device 7 are not limited to this. You may comprise as follows.

  Here, as shown in FIG. 1, a flow rate adjusting valve 4 is provided between the connection portion of the sprinkler 3 and the water using instrument 7 in the water supply pipe 2. As the flow control valve 4, a constant flow valve, a pressure control valve, or the like is usually used. More specifically, the flow rate control valve 4 is provided at the intermediate portion between the connection portion of the sprinkler 3 and the branch portion 6. The flow rate adjusting valve 4 can change the water pressure or the flow rate of water in the water supply pipe 2 by adjusting the opening degree, and the opening degree can be adjusted from fully open to fully closed by the operation of the opening / closing part 4a. Do.

  At the normal time, the flow control valve 4 is fully opened, and normal water pressure is applied to the water use device 7 connected to the downstream portion of the water supply pipe 2 from the flow control valve 4. In the event of a fire, the flow control valve 4 is fully closed and the water supply pipe 2 is closed, or the opening degree is reduced to a state between the full open and the full close, so that the downstream side to which the water using device 7 is connected. Block the part or reduce the water pressure in the downstream part or reduce the flow rate. Thereby, even if the water use instrument 7 is used at the time of a fire outbreak, the water pressure can be reliably sprayed at the position of the sprinkler 3 without reducing the water pressure or the flow rate.

  The opening / closing control of the flow control valve 4 will be further described. As shown in FIG. 1, the sprinkler device of the present embodiment is provided with a control unit 5 that performs opening / closing control of the flow rate adjustment valve 4. The control unit 5 is connected to the open / close unit 4a of the flow control valve 4 by a signal line 8, and can transmit a signal for changing the opening degree of the flow control valve 4 to the open / close unit 4a. The control unit 5 is also connected to the sprinklers 3 and 3 by signal lines 8 and 8, respectively. When the sprinkler 3 is activated, a fire occurrence signal can be transmitted to the control unit 5. ing.

  The sprinkler 3 is provided with an operation detection means (not shown). For example, a switch is disposed at a portion where the sprinkler 3 is dropped due to the operation so that the sprinkler 3 is normally abutted and pressed. When the switch is released due to dropping, a fire occurrence signal can be transmitted via the signal line 8. However, this is an example of the operation detecting means, and other configurations may be used as long as the operation of the sprinkler 3 can be detected.

  The sprinkler device in the present embodiment operates as follows when a fire occurs. When a fire occurs in the house, the sprinkler 3 is activated by heat, and a signal of the fire occurrence is transmitted to the control unit 5 via the signal line 8 accordingly. The control unit 5 that has received the fire occurrence signal transmits a signal for decreasing the opening degree via the signal line 8 to the opening / closing unit 4 a of the flow rate control valve 4. The opening / closing part 4a that has received the signal reduces the opening degree of the flow rate regulating valve 4 and thereby restricts the water pressure or flow rate to each water use device 7 in the downstream part, so that the water pressure or flow rate in the sprinkler 3 is sufficiently ensured. be able to.

  Further, the adjustment of the water pressure or the flow rate may be performed as follows. First, a water pressure or flow rate detection unit is provided in the sprinkler 3. For this, a normal pressure sensor can be used. During the operation of the sprinkler 3, a fire occurrence signal is transmitted to the control unit 5, and subsequently, a pressure signal from the water pressure or flow rate detection unit is transmitted to the control unit 5. The control unit 5 transmits a signal for decreasing the opening degree to the opening / closing unit 4a of the flow rate control valve 4 so that the water pressure or flow rate detected by the water pressure or flow rate detection unit is maintained at a predetermined value or more. Thus, by controlling the opening degree of the flow control valve 4 based on the water pressure or flow rate at the position of the sprinkler 3, the water pressure or flow rate of the sprinkler 3 can be ensured reliably.

  In the present embodiment, the water pressure or flow rate of the sprinkler 3 is ensured by controlling the opening degree of the flow rate control valve 4. However, the flow rate control valve 4 is normally open at the normal time, and is fully closed when a fire occurs. May be closed. In this way, the flow rate adjustment valve 4 only needs to be able to realize a fully open or fully closed state, and thus the structure can be simplified. Further, the control of the opening / closing unit 4a by the control unit 5 is simple because it is only necessary to transmit a signal for fully closing the flow rate adjusting valve 4.

  Next, a second embodiment of the present invention will be described. FIG. 3 is an overall configuration diagram of the sprinkler device according to the second embodiment. About the structure of the water supply pipe 2, the sprinkler 3, the flow control valve 4, and each water use instrument 7 in this embodiment, it is the same as that of 1st Embodiment. The difference from the first embodiment is that a fire detector 9 is provided in each room of the house. The fire detector 9 can detect smoke and flame generated by a fire, and is provided on the ceiling of the room, like the sprinkler 3. Each fire detector 9 is connected to the control unit 5 by a signal line 8. On the other hand, unlike the first embodiment, the sprinkler 3 is not connected to the control unit 5.

  The operation when a fire occurs in the present embodiment will be described. When a fire occurs in the house, the fire detector 9 detects this and transmits a fire occurrence signal to the control unit 5 via the signal line 8. The control unit 5 that has received the fire occurrence signal controls the opening degree of the opening / closing unit 4 a of the flow rate control valve 4. Thus, by detecting the fire by the fire detector 9 different from the sprinkler 3 and controlling the flow rate regulating valve 4, the opening degree of the flow rate regulating valve can be adjusted without waiting for the operation of the sprinkler. A sufficient water pressure or flow rate can be ensured more reliably during operation.

  As mentioned above, although embodiment of this invention was described, application of this invention is not restricted to these embodiment, It can apply variously within the range of the technical idea.

It is a whole block diagram of the sprinkler apparatus in 1st Embodiment. It is an arrangement plan of a sprinkler device in a house. It is a whole block diagram of the sprinkler apparatus in 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 House 2 Water supply pipe 3 Sprinkler 4 Flow control valve 5 Control part 6 Branch part 7 Water use instrument 8 Fire detector

Claims (4)

In a sprinkler device for a house in which a sprinkler is connected to a water supply pipe that is piped to a house, and a water-use instrument is connected to a downstream portion of the sprinkler connection portion.
The water supply pipe has a flow control valve between the sprinkler connection and the water use device, and is connected to the flow control valve to control the flow control valve to be closed or reduced in the event of a fire. part Ri name provided,
The sprinkler includes a water pressure or flow rate detection unit, and the control unit controls the opening of the flow rate control valve so as to maintain the water pressure or flow rate detected by the water pressure or flow rate detection unit at a predetermined value or more. Sprinkler device.   2. The sprinkler device according to claim 1, wherein the control unit is connected to a sprinkler, detects a fire by detecting the operation of the sprinkler, and closes or reduces the opening degree of the flow control valve.   The control unit is connected to a fire detector provided in the house, detects the occurrence of a fire by receiving a signal from the fire detector, and closes or reduces the opening of the flow control valve. Item 2. A sprinkler device according to item 1.   The sprinkler device according to any one of claims 1 to 3, wherein the water supply pipe branches at a downstream portion from the flow rate control valve, and a water-use instrument is connected to each end of each branch water supply pipe.

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