KR200408964Y1 - Fire-fighting Liquid Supply System For a Mist of Fire-fighting Liquid - Google Patents

Abstract

Provided is a digestive water supply device for fine water spray that can implement a fine spray by supplying high pressure digestion water.

The fire extinguishing water supply device is a fire pipe connection portion connected to the fire pipe; A low pressure pump is provided between the fire water tank and the fire pipe connection portion, and receives the water stored in the fire water tank to maintain the normal pressure in the fire pipe at a predetermined low pressure, and buffers the pressure change in the fire pipe at all times. A low pressure unit including a low pressure accumulator in communication with the low pressure pump; And a high pressure pump provided in parallel with the low pressure part between the digestive water tank and the fire pipe connection part and pressurized so that the pressure in the fire pipe becomes high when the fire is supplied with water stored in the digestive water tank. A high pressure unit including a high pressure accumulator in communication with the high pressure pump to buffer a pressure change in the fire pipe; Characterized in that it comprises a.

According to the present invention as described above it is possible to supply a high-pressure digestive water stably to be able to finely spray the digestive water.

Fine water spray, digestion water supply, high pressure, bypass, accumulator, high pressure part, low pressure part

Description

Fire-fighting Liquid Supply System For a Mist of Fire-fighting Liquid}

1 is a block diagram of a digestive water supply device for fine water spray according to the present invention.

Figure 2 is a perspective view of the digestion water supply device for fine water spray according to the present invention.

Figure 3 is an exploded perspective view of the main parts of the digestive water supply device of FIG.

4 is an enlarged perspective view of the high pressure manifold of FIG.

Explanation of symbols on the main parts of the drawings

100 ... Extinguishing water supply 110 ... Extinguishing water supply

120 ... digestion tank 130 ... filter

200 ... Low pressure part 211,311 ... Motor

210 ... Low pressure pump 220,260,320 ... check valve

230,330 ... Safety valve 240,340 ... Pressure gauge

250 ... low pressure accumulator 270, 380 ... pressure sensor

300 ... high pressure 310 ... high pressure pump

340 ... pressure gauge 350 ... air exhaust

360 ... high pressure accumulator 370 ... flow sensor

400 ... Bypass section 410,430.431,432 ... Bypass piping

420 ... Overflow Valve 440 ... Pressure Reducing Valve

450 ... Test valve 500 ... Fire pipe connection

520 Dispensing Manifold 600 Spray

610 ... spray nozzles 611,621 ... fire piping

620 ... Fire Hydrant 700 ... Controls

710 ... fire detector 810 ... frame

820 ... shroud 840 ... high pressure manifold

The present invention relates to a fire extinguishing water supply device, and more particularly, to a fire extinguishing water supply device for fine water spraying capable of supplying high pressure fire extinguishing water to a hydrant or a spray nozzle in order to finely spray extinguishing water.

In general, sprinklers and fire hydrants are installed in various buildings for early fire extinguishing.

The sprinkler is equipped with a fire detector that can detect a fire in the interior of the building, and spray nozzles in which the extinguishing water is sprayed to extinguish the fire by the detected signal, and each spray nozzle uses the fire extinguishing water supplied through the fire pipe. Spray.

However, since the extinguishing water sprayed through the spray nozzle of the conventional sprinkler is large in size and sprayed in the form of rain, there is a problem that various electronic devices are not available after the fire extinguishing.

That is, in a location vulnerable to moisture, such as a research laboratory, a production line of various electronic equipment, a communication equipment room, various equipments due to sprayed extinguishing water may be damaged or become unusable.

In addition, in the case of a firefighter window installed in a conventional fire hydrant is also strongly sprayed in the form of rain, secondary damage caused by the extinguishing water is generated.

To this end, there is a method of spraying the digestion water of the fine particles by supplying the high-pressure fire extinguishing water to the fire pipe, in this case, the pressure in the fire pipe rapidly rises, there is a problem that the fire pipe is broken or leaks. In addition, when the fire pipe breaks or leaks due to a sudden pressure rise, the fire nozzle is not supplied to the spray nozzle to which the extinguishing water is to be injected, so that the fire can not be extinguished and the sprinkler may lose its function.

In addition, in the case of supplying the extinguishing water at high pressure, the pressure in the fire pipe is pulsated, so that it is difficult to supply the extinguishing water smoothly and the fire extinguishing efficiency is lowered.

The present invention is to solve the problems as described above, by supplying a high-pressure digestive water spraying fine digestion water particles to provide a digestive water supply device for fine water spray that can minimize the damage of various equipment according to the fire suppression For the purpose of

In addition, even when supplying a high pressure of the extinguishing water to prevent damage to the fire pipe, and to provide a digestive water supply device for fine water spray that can supply the extinguishing water stably at a constant pressure.

In addition, the present invention aims to provide a fine water spraying extinguishing water supply apparatus capable of stably spraying extinguishing water even when only a part of the extinguishing water supplied is used.

In addition, an object of the present invention is to provide a digestive water supply device for fine water spray that can be made compact.

In order to solve the above problems, the present invention is a fire extinguishing water supply device for spraying the fire extinguishing water stored in the fire extinguishing tank in the fire area through the fire pipe provided in the building, the fire pipe connecting portion connected to the fire pipe; A low pressure pump is provided between the fire water tank and the fire pipe connection portion, and receives the water stored in the fire water tank to maintain the normal pressure in the fire pipe at a predetermined low pressure, and buffers the pressure change in the fire pipe at all times. A low pressure unit including a low pressure accumulator in communication with the low pressure pump; And a high pressure pump provided in parallel with the low pressure part between the digestive water tank and the fire pipe connection part and pressurized so that the pressure in the fire pipe becomes high when the fire is supplied with water stored in the digestive water tank. A high pressure unit including a high pressure accumulator in communication with the high pressure pump to buffer a pressure change in the fire pipe; It provides a digestive water supply device for fine water spray comprising a.

Preferably, the apparatus for supplying digestive water for fine water spray according to the present invention includes a bypass unit for recovering the remaining extinguishing water not sprayed to the fire zone through the fire pipe connection part; It may further include.

In this case, the bypass unit includes an overflow valve for recovering residual digestion water to the digestion tank, and a pressure reducing valve installed in parallel with the overflow valve to prevent the pressure of the overflow valve from rising above a predetermined pressure. It can be provided.

Preferably, the rear end of the digestion tank may be provided with a filtration device for filtering the digestion water supplied to the high or low pressure portion.

Also preferably, the fire pipe connecting portion is connected to the spraying portion to spray the fire extinguishing water supplied by the high-pressure unit with fine particles in the fire zone, the spraying unit is a firefighter window or building for fine water spray each provided with a plurality of fire hydrants It may be provided with a plurality of spray nozzles for fine water spray installed on the ceiling.

Preferably, the fire pipe connecting portion or the spraying portion may be provided with a distribution manifold for distributing the extinguishing water supplied to the fire pipe or the spray nozzle.

On the other hand, the high pressure unit may include a high pressure manifold in which a plurality of components are mounted, and the high pressure accumulator may be mounted in the high pressure manifold.

The high pressure part may be mounted on and supported by the frame, and the low pressure part may be mounted on a side plate attached to one side of the frame.

In addition, the fine water spray for extinguishing water supply apparatus according to the present invention is a control unit for controlling the driving of the high pressure unit and the low pressure unit; It may further include.

In this case, the control unit may selectively drive the low pressure pump according to the signal detected by the pressure sensor of the low pressure unit in the usual time, and selectively drive the high pressure pump of the high pressure unit in response to the use signal of the fire detector or fire hydrant in case of fire. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a micro water spraying digestion water supply apparatus according to the present invention, Figure 2 is a perspective view of a micro water spraying digestion water supply apparatus according to the present invention, Figure 3 is a main part of the digestive water supply apparatus of FIG. 4 is an exploded perspective view of the high pressure manifold of FIG. 3.

As shown in Figures 1 to 4, the fine water spraying fire extinguishing water supply device 100 according to the present invention, the low pressure portion 200 for maintaining the fire pipes (611, 621) in a predetermined low pressure at normal, fire High-pressure unit 300 for supplying high-pressure fire extinguishing water to the fire pipes (611, 621) and the low-pressure unit 200 and the high-pressure unit 300 is connected to supply the digestive water to the spray unit 600 installed inside the building It is configured to include a fire pipe connection portion 500, it may further include a bypass unit 400 and the control unit 700.

First, with reference to Figure 1 looks at the digestive water tank 120 in communication with the high pressure unit 300 and the low pressure unit 200.

As shown in FIG. 1, the digestion tank 120 receives and stores digestion water from the digestion water supply terminal 110 and supplies digestion water to the low pressure unit 200 or the high pressure unit 300. The level sensor 122 is mounted on the digestive water tank 120, and when the level of the tank 120 is higher than a predetermined level, the supply of digestive water from the digestive water supply terminal 110 is stopped by a signal from the controller 700. do. In addition, as will be described later, when the water level of the digestion tank 120 is above a certain level due to the digestion water recovered by the bypass unit 400, the digestion water is discharged to the outside through the discharge pipe 121. Can be. In addition, when the extinguishing water in the extinguishing water tank 120 is to be discharged to the outside, the extinguishing water is discharged through the discharge pipe 121 by opening the three-way valve 123.

On the other hand, as shown in Figures 1 to 4, the rear end of the digestion tank 120 may be installed filtration device 130. The filtration device 130 performs a function of removing various foreign matters contained in the digestion water, and supplies filtered digestion water to the low pressure unit 200 and the high pressure unit 300 connected to the rear end thereof.

In the filtering device 130 shown in FIG. 1, it is shown that the branch flow path of the low pressure part 200 and the high pressure part 300 is set therein. Alternatively, the branch flow path may be set at the rear end of the filtering device 130.

The digestive water having passed through the digestive water tank 120 and the filtration device 130 is usually supplied to the low pressure part 200 and to the high pressure part 300 in case of fire.

First, the low pressure unit 200 will be described with reference to FIGS. 1 to 4.

The low pressure unit 200 is a low pressure pump 210 for providing a low pressure fire extinguishing water to maintain the pressure in the fire pipes (611, 621) to a predetermined low pressure, and the low pressure to buffer the pressure change in the fire pipes (611, 621) A low pressure accumulator 250 in communication with the pump 210 is provided.

The low pressure accumulator 250 absorbs and buffers the pulsation and surge pressure of the low pressure pump 210 so that the fire extinguishing water having a constant pressure is supplied to the fire pipes 611 and 621, and prevents vibration and noise.

The low pressure pump 210 is driven by the motor 211, for example, may be to maintain the pressure in the fire pipe (611, 621) to 10bar. However, the pressure by the low pressure unit 200 may be set differently according to design specifications (for example, 7 to 20 bar), and the capacity of the motor 211 may be set accordingly.

At the rear end of the low pressure pump 210, a non-return valve 220 is installed to prevent the extinguishing water from flowing back to the low pressure pump 210.

In addition, the low pressure unit 200 may be provided with various sensors, gauges, and safety devices.

For example, as shown in FIG. 1, a safety valve 230 may be installed to prevent the pressure in the pipe from rising above a predetermined pressure due to a malfunction of the low pressure pump 210. The pressure gauge 240 may be set to check the pressure of the low pressure part. In addition, although the low pressure unit pressure sensor 270 is illustrated in FIG. 1 at the rear end of the high pressure unit 300, the pressure sensor 270 may be installed in the low pressure unit 200. On the other hand, the rear end of the low pressure unit 200 may be provided with a non-return valve 260 to prevent the extinguishing water pressurized in the high pressure unit 300 is supplied to the low pressure unit 200 when the high pressure unit 300 is driven.

As described above, the low pressure unit 200 supplies fire extinguishing water to the fire pipes 611 and 621 installed inside the building even when the fire does not occur, so that the pressure inside the fire pipes 611 and 621 is maintained at a constant low pressure. In this way, even when a high-pressure fire extinguishing water is suddenly supplied to the fire fighting pipes 611 and 621 in case of fire, damage or leakage of the fire fighting pipes 611 and 621 can be prevented.

Next, the high pressure unit 300 will be described with reference to FIGS. 1 to 4.

The high pressure unit 300 is installed in parallel with the low pressure unit 200, the high pressure pump for supplying the water stored in the digestion water tank 120 to pressurize the pressure in the fire pipes (611, 621) in case of fire. 310 and a high pressure accumulator 360 in communication with the high pressure pump 310 to buffer the pressure change in the fire pipes 611 and 621 in case of fire.

The high pressure accumulator 360, like the low pressure accumulator 250, absorbs and buffers the pulsation and surge pressure of the high pressure pump 310 so that the extinguishing water having a constant pressure is supplied to the fire pipes 611 and 621. In particular, the fire extinguishing water supply device 100 according to the present invention is to supply the extinguishing water at high pressure in the case of fire to implement the fine spray, so that the pulsation and surge pressure of the high-pressure pump 310 is greatly increased do. However, by installing the high pressure accumulator 360, it is possible to buffer the pulsation and the surge pressure to stably supply high-pressure fire extinguishing water to the fire pipes (611, 621). Therefore, it is possible to achieve a stable fine spray, it is possible to prevent damage and leakage of the fire pipe due to pulsation and surge pressure.

The high pressure pump 310 is driven by a motor 311, for example, it is possible to supply a high-pressure fire extinguishing water of 120 bar to the fire pipes (611, 621). However, the fire extinguishing water supply pressure may be set differently according to design specifications in consideration of the pressure resistance of the fire fighting pipes 611 and 621, and the capacity of the motor 311 may be set to be suitable for providing such pressure.

On the other hand, the back of the high pressure pump 310 is provided with a non-return valve 320 to prevent the back flow of the digestive water to the high pressure pump (310).

In addition, the high pressure unit 300 may be provided with various sensors, gauges, and safety devices.

For example, as shown in FIG. 1, a safety valve 330 may be mounted to prevent the pressure in the pipe from rising above a predetermined pressure due to a malfunction of the high pressure pump 310. The pressure gauge 340 may be mounted to check the pressure of the high pressure unit 300. In addition, the air discharge device 350, the flow sensor 370, and the pressure sensor 380 may be provided to discharge the extinguishing water supplied at a high pressure or bubbles existing in the pipe to the outside.

On the other hand, the extinguishing water supplied from the high pressure unit 300 and the low pressure unit 200 is connected to the spray unit 600 inside the building through a fire pipe connection part 500 connected to the high pressure unit 300 and the low pressure unit 200. As a result, fine particles of digestive water are sprayed into the fire zone.

The spray unit 600 sprays the digested water supplied through the fire pipes 611 and 621 installed in the building into fine particles in the fire zone. The spray unit 600 may include a firefighter window for fine water spray each provided in the plurality of fire hydrants 620, and a plurality of fine water spray spray nozzles 610 installed on the ceiling of the building. The firefighter window and the spray nozzle 610 may have a structure and shape suitable for fine water spray.

On the other hand, the spray nozzle 610 may be used both wet type (wet) that is usually filled with water near the nozzle, and dry type (water) is not supplied near the nozzle in normal times. FIG. 1 is a dry type spray nozzle 610. When a fire is detected by the detector 710, the ball valve 612 is opened by the controller 700 to supply fire water to the spray nozzle 610. The open signal of the ball valve 612 is transmitted to the control unit 700 to drive the high pressure pump 310. However, when the wet type spray nozzle 610 is used, such a ball valve 612 is not necessary and the fire water is filled up to the fire pipe 613 near the nozzle.

The fire hydrant 620 may be installed in a predetermined number on each floor of the building, and a firefighter window connected to the fire pipe 621 by a fire hose is installed inside the fire hydrant 620.

In addition, as shown in Figure 1, the fire pipe connection portion 500 may be connected to the fire pipes (611, 621) through the ball valve 510, the rear end of the fire pressure and the appropriate pressure to the fire water pipes (611, 621) and A distribution manifold 520 may be installed to distribute the digestion water at a flow rate. For example, the distribution manifold 520 may include a first valve 521 for supplying digestion water to the spray nozzle 610 and a second valve for supplying digestion water to the hydrant 620 provided in each floor of the building. 522 and the extra 3rd valve 523 can be provided. The distribution manifold 520 may be installed in the fire pipe connection part 500 as shown in FIG. 1, but is not limited thereto, and the distribution manifold 520 may be installed in the spraying part 600 for miniaturization of the digestion water supply device 100. It may be.

The bypass unit 400 will be described with reference to FIGS. 1 to 4.

When the entire extinguishing water supplied from the high pressure pump 310 is not sprayed, such as when a fire occurs in a part of a building, the pressure of the fire pipes 611 and 621 is increased, thereby ensuring the operational reliability of the high pressure pump 310. And the pressure and flow rate of the fire pipes are not constant. Therefore, in order to enable stable supply of digestive water regardless of the flow rate of the extinguishing water sprayed, the present invention may include a bypass unit 400.

The bypass unit 400 is supplied from the high pressure pump 310, but the remaining extinguishing water that is not sprayed through the spray unit 600 is recovered to the digestive water tank 120 to maintain a constant pressure in the fire pipe and high pressure pump Allow 310 to be driven smoothly. That is, the remaining digested water introduced through the bypass pipe 410 is resupplied to the digestive water tank 120 through the overflow valve 420 via the pipes 431 and 430. However, when there is a large amount of residual extinguishing water, the amount of extinguishing water recovered through the overflow valve 420 is not sufficient, and as a result, the pressure in the pipe rises, resulting in a problem that the high pressure pump 310 is not driven. . In this case, by the signals sensed by the pressure sensor 380 and the flow sensor 370 of the high pressure unit 300, the control unit 700 opens the pressure reducing valve 440 to form separate flow paths (432, 430) stably. The high pressure pump 310 can be driven. In FIG. 1, reference numeral 450 is a test valve for testing the bypass unit 400.

In addition, as described above, the fine water spray for extinguishing water supply device 100 according to the present invention is the high pressure unit 300, low pressure unit 200, bypass unit 400, spraying unit 600 and the digestion tank ( The control unit 700 may control the driving of the 120.

The controller 700 may adjust the water level of the digestion tank 120 through the level sensor 122, and selectively drives the low pressure pump 210 through the pressure sensor 270. In case of fire, the ball valve 612 of the spray unit 612 is opened by the fire hydrant use signal detected through a limit sensor or a photo sensor installed in the fire detector 710 or the fire hydrant 620, and the high pressure pump 310 is used. To drive high pressure extinguishing water to the fire pipes (611, 621). In addition, the bypass unit 400 and the high pressure pump 310 are driven by signals applied from the flow sensor 370 and the pressure sensor 380 installed in the high pressure unit 300.

With reference to Figures 2 to 4 looks at a specific installation example of the fine water spraying digestion water supply device 100 according to the present invention.

The fire extinguishing water supply device 100 is miniaturized by installing various parts of the high pressure part 300 on the frame 810 and mounting various parts of the low pressure part 200 on the side plate 820 located on one side of the frame 810. And compactness.

At this time, the motor 311 and the high pressure pump 310 of the high pressure unit 300 is installed on the lower side of the frame in consideration of the size, weight, vibration, etc., and the remaining parts of the high pressure unit 300 to the other side of the frame 810 The high pressure manifold 840 may be mounted. That is, various components of the high pressure unit 300, such as the high pressure accumulator 360, various sensors 370 and 380, the gauge 340, the valve 320, and the air discharge device 350, may be mounted on the high pressure manifold 840. In addition, some components 260 of the low pressure unit 200 may be installed. 2 to 4, components of the bypass unit 400 and the fire pipe connection unit 500 may also be mounted to the high pressure manifold 840. In FIG. 4, 411 and 412 are connected to each other through a pipe to form a flow path of the bypass unit 400. However, unlike FIG. 2 to FIG. 4, the high pressure manifold 840 may be configured, and the present invention is not limited to the configuration of the high pressure manifold 840 illustrated in FIGS. 2 to 4. Through the high pressure manifold 840, the production of the digestion water supply device 100 is easy, and miniaturization is possible.

On the other hand, the high-pressure pump 310 is supported on the frame 810 through the support plate 831 in consideration of vibration, pulsation, height difference with the motor 311, through the motor 311 and the coupling 312 Connected, the connection may be covered by a cover 832.

In addition, the low pressure unit 200, as shown in Figures 2 and 3, the various components are mounted on the side plate 820. At this time, one side 210 of the low pressure unit 200 is connected to the filtration device 130 mounted on the frame 810, the other side 230 is a non-return valve installed in the high pressure manifold 840 through the pipe ( 260).

With reference to Figure 1 looks at the action of an embodiment of the present invention having the configuration as described above.

The digestion water supplied from the digestion water supply terminal 110 is stored in the digestion water tank 120. The level sensor 122 is mounted on the digestive water tank 120, and when the level of the tank 120 is higher than a predetermined level, the supply of digestive water from the digestive water supply terminal 110 is stopped by a signal from the controller 700. do. In addition, as will be described later, when the water level of the digestion tank 120 is above a certain level due to the digestion water recovered by the bypass unit 400, the digestion water is discharged to the outside through the discharge pipe 121. . And, when artificially emptying the digestive water tank 120, the extinguishing water is discharged through the discharge pipe 121 through the three-way valve 123.

In the usual case, the digestion water stored in the digestion water tank 120 is supplied to the low pressure part 200 through the filtration device 130. At this time, the low pressure pump 210 driven by the motor 211 maintains a predetermined low pressure state (for example, 10 bar) in the pipes formed in the fire extinguishing water supply device 100 and the pressure in the fire fighting pipes 611 and 621 in the building. Do it. In addition, the low pressure accumulator 25 buffers the pressure change in the fire pipes 611 and 621 to prevent vibrations and the like in the fire pipes 611 and 621. On the other hand, the pressure sensor 270 of the low pressure unit 200 measures the normal pressure, and when the value detected by the pressure sensor 270 falls below a predetermined pressure, the control unit 700 to drive the low pressure pump 210. do.

Through the configuration of the low pressure unit 200, a predetermined predetermined pressure (low pressure) is applied to the fire pipes 611 and 621 in the usual manner, thereby preventing damage and leakage of the fire pipes 611 and 621. That is, in the conventional case, when a fire occurs, a high pressure extinguishing water is suddenly supplied into the fire pipes 611 and 621 so that the fire pipes 611 and 621 are damaged or leaks occur. By applying a predetermined pressure, it is possible to prevent damage to the fire fighting pipes 611 and 621 due to a sudden pressure change.

Meanwhile, when a fire occurs, a signal detected by the fire detector 710 or a signal by a detection means such as a limit switch or a photo sensor installed in the fire hydrant 620 is input to the controller 700. When a fire occurrence signal is applied, the control unit 700 stops driving the motor 211 and drives the motor 311 of the high pressure unit 300 to operate the high pressure pump 310. Accordingly, the high pressure pump 310 supplies the digestion water to the spray unit 600 at high pressure (for example, 100 bar). At this time, the high pressure accumulator 360 in the high pressure unit 300 prevents pulsation due to driving of the high pressure pump 310 and friction generated in the fire pipes 611 and 621 so that the pressure in the fire pipes 611 and 621 is maintained at a predetermined level. . In addition, a signal detected through the flow sensor 370 and the pressure sensor 380 of the high pressure unit 300 is applied to the control unit 700 to control the driving of the high pressure pump 310.

Meanwhile, the fire extinguishing water supplied from each of the supply ports 521 and 522 provided in the fire pipe connection part 500 is sprayed into fine particles through the spray nozzle 610 and / or the fire hydrant 620 provided in the spraying part 600. do. That is, by supplying the high-pressure fire extinguishing water into the fire pipes 611 and 621 by the high-pressure pump 310, the fine water extinguishing water is sprayed through the spray nozzle 610 and / or the fire hydrant 620.

At this time, when the entire extinguishing water supplied from the high pressure pump 310 is not sprayed, such as when a fire occurs in a part of the building, the remaining undistilled water is recovered to the tank 120 through the bypass unit 400. . That is, the bypass pipe 410 is supplied back to the digestive water tank 120 through the overflow valve 420. For example, when the capacity of the high-pressure pump 310 is 200ℓ / min, and the spraying capacity of each hydrant is 25ℓ / min, it is possible to spray the fire extinguishing water in the eight hydrants, but only some of the hydrants are driven In this case, the remaining extinguishing water not sprayed is recovered to the digestive water tank 120 through the bypass unit 400.

However, when there is a large amount of residual extinguishing water, the amount of extinguishing water recovered through the overflow valve 420 is not sufficient, and as a result, the pressure in the pipe rises, resulting in a problem that the high pressure pump 310 is not driven. . In this case, the control unit 700 opens the pressure reducing valve 440 to form a separate flow path by the signals detected by the pressure sensor 380 and the flow sensor 370 of the high pressure unit 300.

Through the configuration of the high-pressure unit 300, not only can be sprayed to the sprayed digestion water into fine particles, but also by the high-pressure accumulator 360, bypass unit 400 and various sensors 370, 380 by the fire pipe ( The pressure in the 611, 621 is stabilized to achieve the optimum spray state.

According to the present invention as described above, by supplying the high-pressure fire extinguishing water to the fire pipe, it is possible to uniformly spray the fine water of the extinguishing water, maximizing the fire extinguishing efficiency and at the same time minimize the damage of the various equipment due to fire extinguishing You can get the effect.

In addition, by forming a predetermined low pressure in the fire pipe at normal times and supplying high-pressure fire extinguishing water at the time of fire, it is possible to prevent damage and leakage of the fire pipe due to the supply of high-pressure fire extinguishing water, so that the spray nozzle and / or at the fire site There is an effect that can ensure that the digestive water is supplied before the fire hydrant.

And, through the high pressure accumulator it is possible to stably supply the digestive water at a certain level of pressure.

In addition, when only a part of the digestion water supplied from the high pressure pump is used, the remaining digestion water is recovered through the bypass unit, thereby ensuring a stable supply of digestion water.

In addition, by providing a pressure reducing valve in the bypass portion, it is possible to prevent the operation of the high pressure pump due to the increase in the pressure in the fire pipe, so that it is possible to obtain the effect of stably supplying the high pressure digestive water.

Further, by attaching various components to the frame, the side plate and the high pressure manifold, there is an effect that the entire apparatus can be provided in a small size.

Although the present invention has been shown and described with respect to specific embodiments, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. I want to make it clear.

Claims (10)

In the fire extinguishing water supply device for spraying the fire extinguishing water stored in the fire extinguishing tank to the fire area through the fire pipe provided in the building, A fire pipe connection part connected to the fire pipe; A low pressure pump is provided between the fire water tank and the fire pipe connection portion, and receives the water stored in the fire water tank to maintain the normal pressure in the fire pipe at a predetermined low pressure, and buffers the pressure change in the fire pipe at all times. A low pressure unit including a low pressure accumulator in communication with the low pressure pump; And A high pressure pump provided in parallel with the low pressure part between the digestive water tank and the fire pipe connection part and receiving water stored in the digestive water tank to pressurize the pressure in the fire extinguishing pipe to a high pressure in a fire; A high pressure unit including a high pressure accumulator in communication with the high pressure pump to buffer a pressure change in the fire pipe; Digestive water supply device for fine water spray comprising a. The method of claim 1, A bypass unit for recovering the remaining extinguishing water not sprayed to the fire area through the fire pipe connection part to the extinguishing water tank; Digestion water supply apparatus for fine water spray further comprising a. The method of claim 2, The bypass unit includes an overflow valve for recovering residual extinguishing water into the digestive water tank, and a pressure reducing valve installed in parallel with the overflow valve to prevent a pressure of the overflow valve from rising above a predetermined pressure. Digestive water supply device for fine water spray, characterized in that. The method of claim 1, The rear end of the digestion tank is a fine water spraying digestion water supply apparatus, characterized in that the filter device for filtering the digestion water supplied to the high pressure or low pressure portion. The method of claim 1, The fire pipe connecting portion is connected to the spraying portion to spray the fire extinguishing water supplied by the high pressure to the fine particles in the fire zone, The spray unit fine water spray fire extinguishing water supply apparatus for a fine water spray, characterized in that it comprises a plurality of fine water spraying fire nozzles installed on the ceiling or the ceiling of the building, respectively. The method of claim 5, The fire pipe connecting portion or the spraying unit comprises a distribution manifold for distributing the extinguishing water supplied to the fire pipe or the spray nozzle, fine water spraying. The method of claim 1, The high pressure unit has a high pressure manifold to which a plurality of components are mounted, The high pressure accumulator is fine water spraying digestive water supply device, characterized in that mounted on the high pressure manifold. The method of claim 1, The high pressure part is mounted on the frame and supported, The low pressure portion is fine water spraying digestive water supply apparatus, characterized in that mounted on the side plate attached to one side of the frame. The method according to any one of claims 1 to 8, A control unit controlling driving of the high pressure unit and the low pressure unit; Digestion water supply apparatus for fine water spray further comprising a. The method of claim 9, The control unit may selectively drive the low pressure pump according to the signal detected by the pressure sensor of the low pressure unit, and selectively drive the high pressure pump of the high pressure unit according to the use signal of the fire detector or the fire hydrant when a fire occurs. Extinguishing water supply for fine water spraying.

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