KR102452095B1 - Building fire water supply and drainage system - Google Patents

Abstract

The present invention relates to a building firefighting water supply and drainage apparatus, circulating and supplying a firefighting water to a building. The building firefighting water supply and drainage apparatus of the present invention comprises: a firefighting water tank, a firefighting pump, a primary side pipe, a secondary side pipe, an alarm valve, a branch pipe, a spray control valve, a fire sensor, an air compressor, a ventilation pipe, a ventilation control valve, a firefighting water sensor, a drainage pipe, and a drainage control valve.

Description

Building fire water supply and drainage system

The present invention relates to a building fire-fighting water supply/discharge device that circulates and supplies fire-fighting water to a building.

In general, a fire-fighting water supply/discharge device for supplying fire-fighting water to extinguish a fire is installed in a building.

In the fire water supply/discharge system, a sprinkler is installed inside the building, and the sprinkler is configured to spray fire water from the sprinkler by forcibly supplying fire water with a fire pump.

These fire water supply and drainage devices have a wet type in which fire water is filled up to the part where the sprinkler is located and a dry type in which air is filled instead of fire water. much preferred

As for the conventional dry fire water supply/discharge device, "Dry-type device using compressed air:" in Korean Patent Publication No. 10-1928551 (2019.2.26. Announcement) has been disclosed.

A conventional dry device using compressed air includes a supply pipe for supplying fire protection water to spray, a main pump for supplying fire protection water by generating pressure in the supply pipe, and a pressure tank for operating the main pump according to the pressure of the supply pipe In the dry apparatus using compressed air for preventing freezing of indoor fire hydrant piping facilities installed in indoor fire hydrant piping facilities, An air compressor for filling the pipe with air, a compressor operation switch installed in the air compressor to operate the air compressor according to the pressure of the pressure tank, and the air filling port and the air compressor to connect the air compressor to supply compressed air of the air compressor It includes a tank connection pipe for transferring to the pressure tank.

It is possible to prevent freeze-up by filling air in the conventional supply pipe configured in this way, and the price is low due to the simple structure, and it can be easily applied to and installed in existing indoor fire hydrant piping facilities, and there are advantages of easy installation. .

However, the conventional dry device using compressed air has a problem in that it is not possible to suppress the fire as it does not work in case of a fire because it is not possible to check the operation state of the sprinkler or the clogged state of the supply pipe.

In addition, although the supply pipe in which the sprinkler is installed occupies a certain part of the building, there is a problem that the utilization is not high because it is used only in case of a fire.

The present invention has been devised to solve the above problems, and the problem to be solved by the present invention is to test the actual operation by supplying compressed air to the injection control valve for supplying fire protection water from the secondary pipe to the branch pipe and the fire detection. The purpose of this is to provide a fire-fighting water supply and drainage system that can prevent loss of fire suppression function due to non-operation in the event of a fire.

In addition, since the sprinkler is always open and the inflow and outflow check wing rotates according to the inflow of air, it is possible to easily check the clogged state of the branch pipe and take action, as well as to lose the fire suppression function due to the non-operation of the sprinkler. Its purpose is to provide a fire-fighting water supply and drainage system that can prevent

In addition, the branch pipe is connected to the air compressor by the ventilation pipe to increase the utilization by performing ventilation through the branch pipe. The purpose of this is to provide a fire-fighting water supply and drainage system that can prevent

In addition, an alarm test pipe and anti-seize pipe are installed so that the operation of the alarm valve can be tested practically, and the fire pump is operated to prevent loss of fire suppression function due to sticking of the fire pump. The purpose of the present invention is to provide a fire-fighting water supply and drainage system.

A fire water supply and drainage device for a building according to an embodiment of the present invention for achieving the above object includes a fire water tank that supplies and stores fire water from a water supply facility, a fire pump that increases the pressure of fire water stored in the fire water tank and supplies the fire pump, the fire pump a primary side pipe coupled to the , and filled with fire water, a secondary side pipe positioned in the opposite direction to the primary side pipe and filled with air, and connecting the primary side pipe and the secondary side pipe, the primary side pipe and the An alarm valve that selectively supplies the fire protection water from the primary side pipe to the secondary side pipe according to the pressure difference of the secondary side pipe, and a sprinkler that branches from the secondary side pipe and sprays the fire water for each preset space of the apartment building is installed. A pipe, an injection control valve installed at the front end of the branch pipe to open and close the branch pipe to supply or block the fire water to the branch pipe through the secondary side pipe, and the injection control valve to open the branch pipe when a fire occurs a fire detector that detects a fire and controls the injection control valve, an air compressor that provides pneumatic pressure to the secondary pipe at a pressure corresponding to the primary pipe, and sucks air in the space where the sprinkler is located through the sprinkler a ventilation pipe connecting the rear end of the branch pipe and the air intake port of the air compressor to ventilate, and the injection control valve is installed in the ventilation pipe to open the branch pipe by the fire detector, A ventilation control valve that opens and closes the ventilation pipe according to the presence or absence of an inflow, a fire water detection sensor that is located at the rear end of the part where the ventilation control valve is installed in the ventilation pipe to detect the inflow of fire water into the ventilation pipe, and fire water from the fire water detection sensor is detected, a drain pipe for draining the fire water flowing into the ventilation pipe into the fire water tank, and the ventilation pipe is connected to the air compressor according to whether the fire water detection sensor detects fire water, or the drain pipe is optional It includes a drain control valve connected to the

The sprinkler is always open with the branch pipe, and rotates according to the inflow and outflow of air through the branch pipe, and may include an inflow and outflow check wing for checking the clogged state of the branch pipe.

In order to test the operation of the fire detector and the injection control valve, the secondary side pipe includes an injection test valve located between the first branching part of the branch pipe and the alarm valve to open and close the secondary side pipe, When the air compressor tests the operation of the injection control valve, the compressed air of the air compressor is discharged through the sprinkler, and the secondary side of the alarm valve maintains pressure to prevent the operation of the alarm valve. It may include a pressure maintenance pipe for supplying compressed air between the injection test valve and the alarm valve around the injection test valve in the piping, and a test air pipe connected between the injection test valve and the branch pipe. .

The air compressor may include a drain pipe for discharging compressed air generated by the air compressor to the outside, and a supply selection valve for providing compressed air by selecting the secondary pipe and the drain pipe according to the pressure of the secondary pipe. can

According to the present invention, since the injection test valve is installed in the secondary pipe and compressed air is supplied to the branch pipe, the actual operation of the fire detector and the injection control valve is implemented and tested, so that an accurate operation test can be performed. It can prevent loss of fire suppression function due to non-operation in case of fire.

In addition, the sprinkler is always open, and the inflow and outflow check wing that rotates according to the inflow and outflow of air is installed in the sprinkler to prevent loss of the fire suppression function due to the non-operation of the sprinkler.

In addition, by connecting the branch pipe in which the sprinkler is installed to the air compressor through the ventilation pipe to perform ventilation, it can be used even in normal times to improve utilization.

In addition, when fire protection water flows into the ventilation pipe, the fire water detection sensor monitors the inflow of the fire water and drains it through the drain pipe, so it is possible to prevent the failure of the air compressor from occurring due to the inflow of the fire water into the ventilation pipe.

In addition, the alarm test pipe is installed so that the alarm valve can be actually operated to test the alarm valve. can

1 is a configuration diagram schematically illustrating a building fire water supply/discharge device according to an embodiment of the present invention, and shows a state in which ventilation is performed.
2 is a configuration diagram schematically illustrating a building fire water supply/discharge device according to an embodiment of the present invention, and shows a state in which fire protection water is sprayed.
3 is a configuration diagram schematically illustrating a fire water supply/discharge device for a building according to an embodiment of the present invention, and shows a state in which the operation state of the fire detector and the injection control valve is tested.
4 is a side cross-sectional view of a sprinkler constituting a fire-fighting water supply/discharge device for a building according to an embodiment of the present invention.

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

As shown in FIGS. 1 to 3 , the building fire water supply/discharge device 100 according to an embodiment of the present invention includes a fire water tank 110 , a fire pump 120 , an alarm valve 130 , and an air compressor 140 . may include.

The fire protection tank 110 may receive and store fire protection water from a water supply facility that supplies fire protection water.

The fire protection tank 110 stores fire protection water in advance and supplies a larger amount of fire protection water than the amount of fire water supplied from the water supply facility at once, or quantitatively provides the fire protection water quantity supplied non-uniformly from the water supply facility to the fire pump 120. can do.

The fire pump 120 may suck and discharge the fire water stored in the fire water tank 110 , and the fire pump 120 may be implemented with various types of known pumps, and the fire pump 120 and the fire water tank 110 . ) may be connected by a pipe to provide the fire water stored in the fire water tank 110 to the fire pump 120 through the pipe.

At this time, the fire pump 120 is composed of a main pump and an auxiliary pump, and the main pump operates only when a fire occurs to supply fire water to the primary side pipe (P1), and the auxiliary pump is the pressure of the primary side pipe (P1). It may be configured to operate only to maintain

The alarm valve 130 may be opened when the pressures at both ends are different from each other, and the alarm valve 130 is a secondary pipe ( Depending on the pressure of P2), it can be opened to connect the primary side pipe (P1) and the secondary side pipe (P2) or block the connection.

The alarm valve 130 and the fire pump 120 may be connected to each other by a primary side pipe P1, and the primary side pipe P1 is filled with fire water to maintain a preset pressure. can be provided.

When the alarm valve 130 operates to connect the primary side pipe (P1) and the secondary side pipe (P2) according to the pressure difference, there is an operation switch that generates an operation signal to operate the main pump of the fire pump 120 . can be installed.

The operation switch generates an operation signal for operating the fire pump 120 when the alarm valve 130 is opened according to the operation of the opening/closing door that opens and closes the alarm valve 130 according to the pressure difference in the alarm valve 130 . The pump 120 may be operated.

The air compressor 140 may supply compressed air through the secondary side of the alarm valve 130 or the secondary side pipe P2 connected to the alarm valve 130 by compressing the air.

The air compressor 140 provides the compressed air to the secondary side pipe (P2) to provide the pressure of the compressed air to the secondary side pipe (P2), thereby uniformizing the pressure of the primary side and the secondary side in the alarm valve 130 . By maintaining this function, it is possible to prevent the alarm valve 130 from operating and at the same time provide a flow of air to perform ventilation by sucking the air in the interior space of the building at the pressure that the air is sucked in from the air compressor 140 . .

The air compressor 140 may include a filter, and the filter is installed at an air intake port through which air is sucked from the air compressor 140 to filter foreign substances contained in the air suctioned through the air suction port.

A drain pipe (P9) branching from the supply pipe (P6) to eject the compressed air to the outside may be installed in the supply pipe (P6) for supplying the compressed air from the air compressor (140) to the secondary side pipe (P2), At the part where the drain pipe (P9) and the supply pipe (P6) are connected, the compressed air generated from the air compressor 140 is selectively sent to the secondary pipe (P2) or to the drain pipe (P9) by a supply selection valve (V6) can be installed.

At this time, the supply selection valve (V6) is implemented as a three-way valve so that the discharge port of the air compressor 140 is connected in the first direction, the secondary side pipe P2 is connected in the second direction, and in the third direction The drain pipe (P9) is connected to selectively send the compressed air supplied from the air compressor (140) to the drain pipe (P9) or can be sent to the secondary side pipe (P2).

When the supply selection valve (V6) is ventilated through the branch pipe (P3), since the air must be continuously compressed and discharged from the air compressor (140), only when the pressure is lower than the preset pressure in the secondary side pipe (P2) 2 Compressed air is supplied to the secondary pipe (P2) by connecting the secondary pipe (P2) and the supply pipe (P6), and when the pressure is maintained in the secondary pipe (P2), the supply pipe (P6) and the drain pipe (P9) ) to control the compressed air generated from the air compressor 140 to the outside through the drain pipe (P9).

Of course, the supply selection valve (V6) closes the drain pipe (P9) side in a state in which the supply pipe (P6) and the secondary pipe are connected, and in the state where the supply pipe (P6) and the drain pipe (P9) are connected, the secondary The piping side can be closed.

A branch pipe P3 may be connected to the secondary side pipe P2 , and a sprinkler 160 for spraying fire protection water may be installed in the branch pipe P3 .

A plurality of branch pipes P3 may be connected in parallel to the secondary side pipe P2, and the branch pipe P3 is installed in the building for each space or floor of the building and may be connected to the secondary side pipe P2.

The branch pipe P3 may perform a function of a suction pipe for sucking air from the internal space of a building in normal times, and may perform a function of supplying fire-fighting water in case of a fire.

As shown in FIG. 4 , a plurality of sprinklers 160 may be installed in the branch pipe P3 according to the structure of the building.

The sprinkler 160 may perform a function of spraying the fire protection water supplied through the branch pipe P3 or sucking the internal air of the building through the branch pipe P3, and the sprinkler 160 operates only in case of a fire. Rather, it may be of an open type to always communicate with the branch pipe P3 so that air can be inhaled even in normal times.

The sprinkler 160 may be provided with an inflow and outflow check wing 163 that rotates according to the suction and discharge of air or the injection of fire water, and may be in the form of a fan rotating against the fluid according to the movement of the fluid.

Here, since the conventional sprinkler 160 operates only in case of fire, it is difficult to check the supply of fire water through the branch pipe P3. cannot extinguish the fire.

Accordingly, since the sprinkler 160 is always open in the embodiment, it is possible to prevent fire suppression from failing as the sprinkler 160 does not operate even when fire protection water is supplied.

In addition, the inflow and outflow check wings 163 are formed in the sprinkler 160, and the inflow and outflow check wings 163 rotate according to the suction or discharge of air from the branch pipe P3 or the injection of fire water, thereby clogging the branch pipe P3. It is easy to ascertain whether

In addition, a dispersion plate 161 may be installed at the lower end of the sprinkler 160 to disperse and spray the fire water in a wide direction when spraying the fire water.

At the front end where the first sprinkler 160 is connected in the branch pipe P3, that is, the front end connected to the secondary side pipe P2, a spray control valve V3 for supplying or blocking fire water to the branch pipe P3 can be installed. have.

The injection control valve (V3) may be implemented as an electromagnetic valve that electronically opens and closes the branch pipe (P3), and the injection control valve (V3) is a branch pipe (P3) according to a signal for detecting the occurrence of a fire from the fire detector (150). ) can be opened and closed.

For example, the injection control valve V3 seals the front end of the branch pipe P3 in a general situation, and opens the branch pipe P3 only when the fire detector 150 detects the occurrence of a fire, so that the branch pipe P3 Fire water can be supplied to the branch pipe (P3) through the secondary pipe (P2) connected to the front end of the

The fire detector 150 may detect a fire by sensing heat and/or smoke, and may control the branch pipe P3 to be opened with the injection control valve V3 when the fire is detected.

The fire detector 150 opens and closes the injection control valve (V3) installed in all branch pipes (P3) connected to the secondary side pipe (P2), depending on the structure of the building, or for each injection control valve (V3), the fire detector 150 By controlling only the injection control valve (V3) installed in the branch pipe (P3) corresponding to the location where the fire occurred, it may be configured to supply and spray the fire protection water only at the location where the fire occurred.

The fire detector 150 may apply various types of known fire detectors 150 that transmit a control signal capable of controlling the injection control valve V3 when a fire occurs.

The injection control valve V3 is also operated electronically, but may have a lever that can be operated by manual operation in case it does not operate due to occurrence of a failure.

On the other hand, the rear end of the branch pipe (P3) may be connected by the air intake and ventilation pipe (P4) of the air compressor (140).

The ventilation pipe (P4) may suck air through the branch pipe (P3) by the pressure of sucking air from the air intake port of the air compressor (140).

Here, in a general situation, since the front end of the branch pipe (P3) is sealed by the injection control valve (V3), when suction power is generated in the air compressor (140), the suction power is transmitted to the branch pipe (P3) connected to the ventilation pipe (P4) In the meantime, it is possible to suck air from the space in which the sprinkler 160 is located through the always open sprinkler 160 .

For example, especially in winter, because ventilation is not performed due to low temperature, the concentration of carbon dioxide inside increases according to the amount of activity.

Accordingly, the embodiment sucks air from the sprinkler 160 by the suction force that sucks air from the air compressor 140, sucks the indoor air through the branch pipe P3 and the ventilation pipe P4, and discharges it to the outside. It can lower the carbon dioxide concentration in the room.

At this time, when air is sucked through the sprinkler 160 , since the pressure inside the room is lowered, fresh air from the outside is introduced into the room through a gap between a door and a window frame, and ventilation can be performed.

A ventilation control valve (V4) that opens and closes the ventilation pipe (P4) may be installed in the ventilation pipe (P4), and the ventilation control valve (V4) opens the ventilation pipe (P4) when ventilating through the branch pipe (P3) and close the ventilation pipe (P4) to block the inflow of fire water into the ventilation pipe (P4) only in case of a fire.

The ventilation control valve (V4) is controlled to close the ventilation pipe (P4) when a fire signal is generated from the fire detector (150), or a fire water detection sensor (170) is installed in the ventilation pipe (P4) to detect a fire water detection sensor (170) When the inflow of moisture into the ventilation pipe (P4) is detected in the ventilator pipe (P4), it is determined that the fire water is flowing in, and the fire water detection sensor 170 controls the ventilation control valve (V4) to close the ventilation pipe (P4).

Here, the fire water detection sensor 170 may be implemented as a moisture detection sensor that detects moisture.

The fire protection sensor 170 may be installed at the front end and the rear end of the ventilation control valve V4 as the center in the ventilation pipe P4, respectively, and the ventilation sensor installed at the front end of the ventilation control valve V4 is a branch pipe ( The ventilation control valve (V4) is controlled by detecting the inflow of fire water through P3), and the ventilation sensor installed at the rear end of the ventilation control valve (V4) causes the ventilation pipe (P4) to fail due to the failure of the ventilation control valve (V4). In the case of failure to block the air compressor 140 , a failure of the air compressor 140 may be prevented from occurring while the fire protection water is supplied to the air compressor 140 by controlling the drain control valve V5 to be described below.

In the ventilation pipe (P4), there is a drainage pipe (P5) that drains the fire water tank 110 without sending it to the air compressor 140, which flows in through the ventilation pipe (P4) when the fire water is introduced into the ventilation pipe (P4). can be connected

In addition, a drain control valve (V5) is installed at the part where the ventilation pipe (P4) and the drain pipe (P5) are connected, selectively connecting the ventilation pipe (P4) and the air compressor (140), and the drain pipe (P5) It is possible to block, connect the ventilation pipe (P4) and the drain pipe (P5), and block the air compressor (140).

The drain control valve (V5) is implemented as a three-way valve, and the ventilation pipe (P4) is connected to the first position on one side, the drain pipe (P5) is connected to the second position, and the air compressor (140) is connected to the third position. It is connected to the air intake and may connect the ventilation pipe P4 and the drain pipe P5 or the air compressor 140 according to the selection of the drain control valve V5.

The drain control valve V5 may be controlled by the fire water detection sensor 170 installed at the rear end of the ventilation control valve V4. When it is detected, it is judged as a failure of the ventilation control valve (V4) and the drain control valve (V5) connects the ventilation pipe (P4) and the drain pipe (P5), and the connection between the air supply and the ventilation pipe (P4) is closed. By draining the fire protection water supplied through the ventilation pipe (P4) in the form of the fire protection water tank 110 through the drainage pipe (P5), the damage to the air compressor 140 caused by the fire water flowing into the air compressor 140 can be prevented. can

1 to 3, the building fire water supply and drainage device 100 according to an embodiment of the present invention further includes an injection test valve (V2), an alarm test pipe (P8), and an anti-sticking pipe (P7). may include

The injection test valve V2 may test the operation of the fire detector 150 and the injection control valve V3.

The injection test valve V2 may be installed between the part where the first branch pipe P3 is connected in the secondary side pipe P2 and the alarm valve 130 to open and close the secondary side pipe P2.

The injection test valve V2 can block the secondary side pipe P2 from entering the fire water into the part connected to the branch pipe P3 due to a malfunction of the alarm valve 130 .

At this time, the supply pipe P6 for supplying air from the air compressor 140 to the secondary side pipe P2 maintains a pressure that provides compressed air in the direction in which the alarm valve 130 is located centered on the injection test valve V2. A test air pipe (P6-2) that branches from the pipe (P6-1) and the pressure maintenance pipe (P6-1) and supplies compressed air to the part connected to the alarm valve 130 and the first secondary pipe (P2). It is branched to and can provide compressed air to both sides of the injection test valve (V2) with the injection control valve (V3) as the center.

When the injection control valve (V3) is tested by the injection test valve (V2), the pressure maintenance pipe (P6-1) provides compressed air to the alarm valve (130) to break the pressure balance of the alarm valve (130). Prevents the valve 130 from operating, and the test air pipe (P6-2) supplies compressed air to the branch pipe (P3) through the secondary side pipe (P2), thereby checking the inflow and outflow check wings (163) of the sprinkler (160). ), the operation of the injection control valve (V3) can be checked by determining whether compressed air is injected or not through the rotation.

The alarm test pipe (P8) connects the secondary side of the alarm valve 130 and the fire water tank 110, and the alarm test pipe (P8) has an alarm test valve (V8) that opens and closes the alarm test pipe (P8). When the alarm valve 130 is tested, if the alarm test pipe P8 is opened by the alarm test valve V8, the pressure of the secondary side pipe P2 is lowered, and the alarm valve 130 is opened while the alarm valve is opened. The alarm valve 130 may be tested in the form of determining that the fire protection water transmitted from 130 to the secondary side pipe P2 is drained to the fire water tank 110 through the alarm test pipe P8.

At this time, in a state where the injection test valve (V2) installed on the secondary side pipe (P2) blocks the secondary side pipe (P2), the alarm test valve (V8) is opened and the fire water supplied to the secondary side pipe (P2) is 2 Supply to the branch pipe (P3) through the vehicle side pipe (P2) can be prevented.

The anti-sticking pipe (P7) is stuck as the fire pump 120 does not operate for a long time, and intermittently operates the fire pump 120 to prevent the fire pump 120 from operating in case of a fire. sticking can be prevented.

Here, the fire pump 120 operated by the anti-seize pipe P7 may be a main pump.

The anti-seize pipe (P7) connects the primary side pipe (P1) and the fire water tank 110, and the anti-seize valve (V7) is installed in the anti-seize pipe (P7) to open and close the anti-seize pipe (P7). .

The anti-seize pipe (P7) can be operated at the minimum operating speed at which the fire pump 120 can be started while maintaining the pressure of the primary side pipe (P1) at the operating speed of the fire pump 120 periodically or non-periodically. In addition, the fire water that exceeds the pressure of the primary side pipe (P1) is drained from the fire water tank 110 through the anti-seize pipe (P7) to operate the fire pump 120 to prevent the fire pump 120 from sticking. have.

The operation and effect between each configuration described above will be described.

In the building fire water supply/discharge device 100 according to the embodiment of the present invention, fire water is supplied to the fire water tank 110 from a water supply facility, and the fire water supplied to the fire water tank 110 is supplied to the fire water tank 110 by the fire pump 120. 120) and the alarm valve 130 are supplied to the primary side pipe (P1). The alarm valve 130 is installed at the end of the primary side pipe P1, and the secondary side pipe P2 is connected in a direction opposite to the direction of the alarm valve 130 to which the primary side pipe P1 is connected.

A branch pipe P3 is connected to the secondary side pipe P2, and an injection control valve V3 is installed at a portion where the secondary side pipe P2 and the branch pipe P3 meet.

The injection control valve V3 opens and closes the branch pipe P3 by the fire detector 150, and a sprinkler 160 for sucking air or spraying fire water is installed in the branch pipe P3.

The sprinkler 160 is always in communication with the branch pipe P3, and the sprinkler 160 rotates according to the discharge of fire water and the inflow and outflow of air to check the operation status of the branch pipe P3. ) is installed.

At the end of the branch pipe (P3), a sprinkler 160 and a ventilation pipe (P4) for sucking air to perform ventilation through the branch pipe (P3) is connected to the air intake port of the air compressor (140).

A ventilation control valve (V4) for opening and closing the ventilation pipe (P4) is installed in the ventilation pipe (P4), and a fire water detection sensor (170) for detecting the inflow of fire water into the ventilation pipe (P4) is installed on both sides of the ventilation valve control do.

In addition, in the ventilation pipe (P4), when fire protection water flows into the ventilation pipe (P4), a drainage pipe (P5) connected to the fire water tank 110 is installed so as to drain the fire protection water to the fire water tank 110, and the ventilation pipe (P4) ) and the drain pipe (P5) are connected, a drain control valve (V5) for selectively opening and closing the ventilation pipe (P4) and the drain pipe (P5) is installed.

In addition, a supply pipe (P6) is connected to the secondary side pipe (P2) at the air outlet for discharging compressed air from the air compressor (140), and the supply pipe (P6) is connected from the air compressor (140) to the secondary side pipe (P2). A drain pipe (P9) that discharges to the outside when the supply of compressed air is not required is installed.

A supply selection valve for selectively sending the compressed air supplied from the air compressor 140 to the drain pipe (P9) or to the secondary side pipe (P2) at the part where the drain pipe (P9) and the supply pipe (P6) are connected (V6) is installed.

And, between the part where the alarm valve 130 and the first branch pipe P3 of the secondary side pipe P2 are connected, the injection test valve for testing the operation of the injection control valve V3 and the fire detector 150 ( V2) is installed, and the supply pipe (P6) is the test air pipe (P6-2) that supplies compressed air to the secondary pipe (P2) to which the branch pipe (P3) is connected, and the pressure of the alarm valve (130). In order to maintain, it is branched to a pressure maintenance pipe (P6-1) that supplies compressed air to the alarm valve 130 and is connected to the secondary pipe (P2).

In addition, in order to prevent the fire pump 120 from sticking, an anti-seize pipe (P7) connected to the fire water tank 110 is installed in the primary side pipe (P1), and an anti-stick pipe (P7) is installed in the anti-stick pipe (P7). ), a non-stick valve (V7) that opens and closes is installed.

In addition, the secondary pipe located between the alarm valve 130 and the injection test valve V2 is connected to the fire water tank 110 and the alarm test pipe P8 to test the alarm valve 130, and the alarm test An alarm test valve (V8) for opening and closing the alarm test pipe (P8) is installed in the pipe (P8).

The building fire water supply/discharge device 100 according to the embodiment of the present invention configured as described above describes the operating state during ventilation.

1, during ventilation, the injection control valve (V3) closes the branch pipe (P3), the ventilation control valve (V4) opens the ventilation pipe (P4), and the drain control valve (V5) is The air compressor 140 and the ventilation pipe (P4) are connected, and the drain pipe (P5) is closed.

And, the supply selection valve (V6) connects the drain pipe (P9) and the supply pipe (P6) to each other, and the injection test valve (V2) opens the secondary side pipe (P2).

When the air compressor 140 is operated in this state, the suction force for sucking air from the air compressor 140 acts as a branch pipe (P3) connected to the ventilation pipe (P4) through the ventilation pipe (P4), and the secondary side pipe ( Since the end of the branch pipe (P3) connected to P2) is sealed by the injection control valve (V3), the air in the internal space of the building is sucked through the sprinkler (160).

And, the air sucked into the air intake port of the air compressor 140 is sent to the secondary side pipe (P2) by operating the supply selection valve (V6) according to the pressure of the secondary side pipe (P2), or the drain pipe (P9) Ventilation is performed in the form of being released to the outside through the

2, when the fire detector 150 detects a fire, the fire detector 150 controls the injection control valve V3 to open the branch pipe P3, and the ventilation control valve V4. to close the ventilation pipe (P4).

When the branch pipe (P3) is opened, the air filled in the secondary side pipe (P2) is discharged through the sprinkler 160 of the open branch pipe (P3), the pressure of the secondary side pipe (P2) is lowered, and the alarm valve (130) When the pressure balance is broken, the alarm valve 130 is opened.

When the alarm valve 130 is opened, the fire pump 120 is operated by the alarm valve 130, and the fire water from the primary side pipe (P1) is passed through the secondary side pipe (P2) and the branch pipe (P3) through the sprinkler (160). is sprayed to extinguish the fire.

Of course, when the fire detector 150 detects the occurrence of a fire, the operation of the air compressor 140 may be in a stopped state.

And, when fire protection water is supplied to the branch pipe P3 according to the occurrence of a fire and fire water flows into the ventilation pipe P4 due to a failure of the ventilation control valve V4, the fire water detection sensor 170 detects the fire water and detects the fire water. is detected, the drain control valve (V5) connects the drain pipe (P5) and the ventilation pipe (P4) to drain the fire water through the ventilation pipe (P4), resulting in a failure of the air compressor 140 according to the inflow of the fire water. can be prevented from doing

3, when testing the operation of the fire detector 150 and the injection control valve (V3), the injection test valve (V2) installed on the secondary side pipe (P2) closes the secondary side pipe (P2), , the air compressor 140 supplies compressed air to the secondary side pipe P2 through the supply pipe P6, and the ventilation control valve V4 closes the ventilation pipe P4.

In this state, when compressed air is discharged from the air compressor 140, the compressed air flows through the supply pipe (P6) to the secondary side pipe (P2) where the branch pipe (P3) is located centered on the injection test valve (V2). Compressed air is delivered by the test air pipe (P6-2), and the compressed air is delivered through the pressure maintenance pipe (P6-1) to the part where the alarm valve 130 is located.

If an environment simulating the fire environment is provided to the fire detector 150 in a state in which compressed air is delivered to both sides of the injection test valve V2 in this way, when the fire detector 150 is normal, the injection control valve V3 is It operates to open the branch pipe (P3), and when the branch pipe (P3) is opened, compressed air is sprayed to the sprinkler (160) through the branch pipe (P3).

At this time, the injection of compressed air through the sprinkler 160 can be seen in the form of confirming the rotation of the inflow and out confirmation wing 163 installed in the sprinkler 160 .

On the other hand, when a failure occurs in the fire detector 150 or the injection control valve V3, since the injection control valve V3 does not operate even when the fire environment is simulated by the fire detector 150, the compressed air is sent to the sprinkler 160. The discharge does not occur, so the check wing 163 does not rotate.

Here, the secondary side pipe (P2) is blocked by the injection test valve (V2), and since compressed air is provided to the alarm valve 130 through the pressure maintenance pipe (P6-1), the pressure of the alarm valve (130) By maintaining the balance, it is possible to prevent malfunctions of the fire pump 120 and the alarm valve 130 .

On the other hand, in order to prevent the fire pump 120 from sticking, by periodically or non-periodically starting the fire pump 120 in a state in which the anti-sticking pipe P7 is opened through the anti-stick valve V7, the fire pump 120 for a long period of time It is possible to prevent the non-operation of the fire pump 120 in case of a fire due to the occurrence of sticking due to the non-operation of the 120 .

In addition, when testing the operation of the alarm valve 130, the secondary side pipe (P2) is closed by the injection test valve (V2), and then the alarm test pipe (P8) is opened by the alarm test valve (V8), 2 The supply of compressed air from the air compressor 140 is cut off through the vehicle side pipe P2.

In this state, if the alarm test pipe (P8) is opened through the alarm test valve (V8), the air filled in the secondary side pipe (P2) located below the injection test valve (V2) passes through the alarm test pipe (P8). When the pressure is lowered while being discharged to the fire protection tank 110 and the alarm valve 130 is normal, the fire pump 120 is started by the alarm valve 130, and when the alarm valve 130 fails, fire fighting Pump 120 does not start.

When the fire pump 120 is started, the fire water passes through the primary side pipe (P1), the alarm valve 130, and the secondary side pipe (P2) in order, and is drained to the fire water tank 110 through the alarm test pipe (P8). It is possible to test the operation of the alarm valve 130 without spraying fire water on the building.

Therefore, in the building fire water supply/discharge device 100 according to the embodiment of the present invention, the air compressor 140 and the branch pipe P3 are connected to the air compressor 140 and ventilate through the normally unused branch pipe P3. By performing the , it is possible to increase the utilization of the branch pipe (P3), as well as to reduce the equipment cost because there is no need to introduce a ventilation system.

In addition, since the sprinkler 160 is always open and the branch pipe P3 is continuously used, it is possible to prevent the loss of the function of the sprinkler 160 due to the non-supply of fire water due to the clogging of the branch pipe P3. In addition, since the inflow and outflow check wings 163 are installed in the sprinkler 160 according to the inflow and outflow of air, it is possible to easily check the clogging of the branch pipe P3 from the outside and take measures.

In addition, the injection test valve (V2) is installed and compressed air is supplied to both sides of the secondary side pipe (P2) to the center of the injection test valve (V2) to maintain the operation of the alarm valve (130). It is possible to check the actual operating state of the injection control valve (V3) and the fire detector 150 in the form of confirming.

In addition, when the fire water detection sensor 170 and the drainage control valve V5 are installed in the ventilation pipe P4 and fire water flows in, the ventilation pipe P4 by draining the fire water tank 110 through the drainage pipe P5. ), it is possible to prevent the failure of the air compressor 140 from occurring due to the inflow of fire-fighting water.

In addition, the alarm test pipe (P8) and the anti-sticking pipe (P7) are installed so that the actual operation of the alarm valve 130 can be tested, and the fire pump 120 is prevented from sticking to prevent it from working in case of fire. loss of function can be prevented.

Although the embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and it is easily changed from the embodiment of the present invention by a person skilled in the art to which the present invention belongs and recognized as equivalent. including all changes and modifications to the scope of

100: building fire water supply and drainage device 110: fire water tank
120: fire pump 130: alarm valve
140: air compressor 150: fire detector
160: sprinkler 161: dispersion plate
163: inflow check wing 170: fire water detection sensor
P1: Primary side piping P2: Secondary side piping
P3: Branch pipe P4: Ventilation pipe
P5: Drain pipe P6: Supply pipe
P6-1: Pressure maintenance piping P6-2: Test air piping
P7: Anti-seize piping P8: Alarm test piping
P9: Drain pipe V2: Injection test valve
V3; Injection control valve V4: Ventilation control valve
V5: drain control valve V6: supply selection valve
V7: Anti-seize valve V8: Alarm test valve

Claims (4)

Fire water tank that supplies and stores fire water from water supply facilities,
a fire pump that increases the pressure of the fire water stored in the fire water tank and supplies it;
A primary side pipe that is coupled to the fire pump and filled with fire water;
A secondary pipe located in the opposite direction to the primary pipe and filled with air inside;
an alarm valve connecting the primary side pipe and the secondary side pipe and selectively supplying fire water from the primary side pipe to the secondary side pipe according to a pressure difference between the primary side pipe and the secondary side pipe;
A branch pipe branched from the secondary side pipe and installed with sprinklers that spray fire protection water for each preset space of the apartment house;
an injection control valve installed at the front end of the branch pipe to open and close the branch pipe to supply or block fire protection water to the branch pipe through the secondary pipe;
A fire detector for controlling the injection control valve by detecting a fire so that the injection control valve opens the branch pipe when a fire occurs;
an air compressor for providing pneumatic pressure to the secondary side pipe at a pressure corresponding to the primary side pipe;
A ventilation pipe connecting the rear end of the branch pipe and the air intake port of the air compressor to suck air in the space where the sprinkler is located through the sprinkler and ventilate it;
A ventilation control valve installed in the ventilation pipe, wherein the injection control valve opens the branch pipe by the fire detector, and opens and closes the ventilation pipe depending on whether firefighting water is introduced through the branch pipe;
a fire water detection sensor located at a rear end of the ventilation pipe from the part where the ventilation control valve is installed to detect the inflow of fire water into the ventilation pipe;
a drain pipe for draining the fire water flowing into the ventilation pipe to the fire water tank when the fire water detection sensor detects fire water; and
and a drainage control valve for connecting the ventilation pipe to the air compressor or selectively connecting the ventilation pipe to the drain pipe depending on whether the fire water detection sensor detects fire water. The method of claim 1,
The sprinkler is
always open with the branch pipe,
The building fire water supply and drainage device, characterized in that it includes an inflow and outflow check wing that rotates according to the inflow and outflow of air through the branch pipe to check the clogged state of the branch pipe. The method of claim 1,
In order to test the operation of the fire detector and the injection control valve, it is located between a portion where the branch pipe is initially branched from the secondary side pipe and the alarm valve and includes an injection test valve for opening and closing the secondary side pipe,
the air compressor
When the operation of the injection control valve is tested, the compressed air of the air compressor is discharged through the sprinkler, and the secondary side of the alarm valve maintains the pressure to prevent the operation of the alarm valve from the secondary side pipe. A building comprising a pressure maintenance pipe for supplying compressed air between the injection test valve and the alarm valve around the injection test valve, and a test air pipe connected between the injection test valve and the branch pipe Fire water supply and drainage system. The method of claim 1,
the air compressor
A drain pipe for discharging the compressed air generated by the air compressor to the outside, and
and a supply selection valve for supplying compressed air by selecting the secondary side pipe and the drain pipe according to the pressure of the secondary side pipe.

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