JP2017136507A - Control device of sprinkler fire-extinguishing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device of sprinkler fire-extinguishing equipment having no possibility of failing fire extinguishment when being renewed into vacuum-type fire-extinguishing equipment using pipes of established sprinkler fire-extinguishing equipment.SOLUTION: A fire-extinguishing system control board 5 of the sprinkler fire-extinguishing equipment includes a water-filling condition setup part 5d for setting any of a single lock system for opening a pre-action valve 22 on the basis of only a fire determination result of a fire-alarm receiver 4, and a double lock system for opening the pre-action valve 22 on the basis of both of the fire determination result of the fire-alarm receiver 4, and detection of opening of a sprinkler head 2 by head action detection means (a pressure switch 31 and a pressure increase switch 32). When being renewed into a vacuum-type sprinkler fire-extinguishing equipment using pipes of the existing sprinkler fire-extinguishing equipment, the fire-extinguishing system control board 5 sets the water-filling condition setup part 5d to the single lock system.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a control device for a sprinkler fire extinguishing equipment, and more particularly to a control device for a sprinkler fire extinguishing equipment using a pre-acting valve secondary side pipe having a negative pressure.

  2. Description of the Related Art Conventionally, there is a pre-acting sprinkler fire extinguishing equipment in which a secondary side pipe connected to a sprinkler head is filled with compressed air and pressurized, and a pre-acting valve is provided on the base end side of the secondary side pipe. This sprinkler fire extinguishing system opens the pre-actuated valve when a fire sensor installed in the same protection zone as the sprinkler head is activated (commonly known as a single lock method), or when the fire sensor is activated and the sprinkler head is opened When this is detected, the pre-actuating valve is opened (commonly known as a double lock system), and the pre-acting valve is opened to fill the secondary side pipe with extinguishing water.

  In such a pressure type (positive pressure type) sprinkler fire extinguishing facility, when the sprinkler head is damaged, water accumulated in a falling pipe portion to which the sprinkler head is connected may cause water leakage. Therefore, a vacuum type pre-actuated sprinkler fire extinguishing system is disclosed in which the secondary side pipe is negatively pressured by a vacuum pump connected to the secondary side pipe in a normal state so that water will not leak even if the sprinkler head is damaged. (For example, refer to Patent Document 1).

  In Patent Document 1, either the fire detector is activated and the pressure increase rate of the secondary side pipe becomes a predetermined value or more, or the pressure value in the secondary side pipe becomes a predetermined value or more. Thus, it is disclosed to open the pre-actuating valve.

  By the way, the sprinkler head is provided with a plug member below a water outlet that communicates the protection section and the secondary side pipe, and the plug member is supported by a support member formed of a heat melting member such as solder. The water mouth is blocked. And when a fire breaks out in the protection section, if the support member melts and the plug member falls due to the heat of the fire, the protection section and the secondary side piping communicate with each other through the water outlet (that is, the structure that opens the plug) ). For this reason, in vacuum pre-actuated sprinkler fire extinguishing equipment where the pressure of the secondary side pipe is lower than the pressure in the protective compartment, the plug member is sucked into the secondary side pipe side even if the support member melts. The sprinkler head may not open. Therefore, a sprinkler head provided with an urging means for urging the plug member from the secondary pipe side is used in the vacuum pre-actuated sprinkler fire extinguishing equipment.

JP 2010-233598 A

  Normally, when a vacuum pre-actuated sprinkler fire extinguishing facility is newly installed, a device that constitutes the facility is newly laid, so that equipment outside the specifications is not used. Therefore, when a vacuum pre-actuated sprinkler fire extinguishing system is newly installed, the pre-actuating valve should be controlled by a double-lock method in which the pre-actuating valve opens when the fire detector is activated and the sprinkler head is detected open. Is desirable. This is because controlling the pre-actuating valve by the double lock method has an advantage that the pre-acting valve does not open even if the fire detector gives a false alarm, and the risk of water loss is reduced.

  On the other hand, when a renewal work is performed to update equipment using existing piping, there is a possibility that a general-type sprinkler head that does not include the existing urging means is left behind. In this way, when the general-type sprinkler head is mixed by mistake and the vacuum pre-actuated sprinkler fire extinguishing equipment is installed, the general-type sprinkler head is installed in the secondary side pipe in the event of a fire. There is a risk that firefighting may fail due to the fact that it cannot be opened against the negative pressure. Therefore, when installing a vacuum pre-actuated sprinkler fire extinguishing system using existing piping, it is desirable to control the pre-actuating valve with a single lock system that opens the pre-actuating valve when the fire detector is activated. .

  In addition, fire detectors installed in protective zones require periodic inspections to maintain their functions (mandatory in many countries such as Japan). However, if the fire detector activation signal is output during such inspection, the pre-actuation valve may be accidentally opened. If the operation signal of the fire detector is interrupted in order to prevent this, even if a fire occurs during inspection, the pre-actuation valve of the sprinkler fire extinguishing equipment is not opened and the sprinkler fire extinguishing equipment does not function. In such a situation where normal operation of the fire detector cannot be expected, it is desirable to open the pre-actuating valve based only on the operation of the sprinkler head, not on the operation of the fire detector.

  In this way, the vacuum pre-actuated sprinkler fire extinguishing equipment differs in a desirable pre-actuating valve control method depending on installation conditions, use conditions, and the like. However, since the control device for the conventional vacuum type pre-actuated sprinkler fire extinguishing equipment has manufactured a different control device corresponding to the control method of the pre-actuated valve, the manufacturing cost of the vacuum type pre-actuated sprinkler fire extinguishing equipment is low. There was a problem that it would increase.

  The present invention has been made to solve the above-described problems, and when the existing sprinkler fire extinguishing equipment is used to update the vacuum sprinkler fire extinguishing equipment, the sprinkler fire extinguishing is not likely to fail. The purpose is to obtain a control device for equipment.

  The control device for a sprinkler fire extinguishing equipment according to the present invention includes a fire detection means, a pressurized water supply device, a pre-acting valve, and a pre-acting valve on the primary side of which the pressurized water supply device is connected to the base end side. A primary side pipe, a secondary side pipe provided on the secondary side of the pre-actuating valve and connected to the sprinkler head, a vacuum pump for making negative pressure in the secondary side pipe in a normal state, and the secondary A sprinkler fire extinguishing equipment control device used in a sprinkler fire extinguishing equipment comprising a side pipe and a vacuum pipe connecting the vacuum pump, and a fire judging means for making a fire judgment based on the operation of the fire sensing means A single lock system that opens the pre-actuating valve based only on the fire judgment result of the fire judgment means, or a head operation that detects the fire judgment result of the fire judgment means and the sprinkler head opening. A condition setting means for setting any one of a double lock method for opening the pre-actuating valve by both detection of the sprinkler head opening by the detection means, and using piping of an existing sprinkler fire extinguishing equipment In the case of updating to a vacuum sprinkler fire extinguishing equipment, the condition setting means is set to a single lock system.

  Further, the control device for a sprinkler fire extinguishing apparatus according to the present invention is a single mode in which the pre-actuating valve is opened only based on detection of opening of the sprinkler head by the head operation detecting means, or at least of the fire determining means. An operation mode setting means for setting one of a normal mode for opening the pre-actuating valve based on a fire determination result is provided.

  Further, the control apparatus for a sprinkler fire extinguishing equipment according to the present invention is such that the condition setting means is set to the single lock method, the operation mode setting means is set to the normal mode, and the fire determination means is a fire. When the determination is made, the pre-actuating valve is controlled to be opened.

  In the control apparatus for a sprinkler fire extinguishing equipment according to the present invention, when updating to a vacuum sprinkler fire extinguishing equipment using the piping of an existing sprinkler fire extinguishing equipment, the condition setting means is set to a single lock system. For this reason, the control device for the sprinkler fire extinguishing equipment according to the present invention opens the pre-actuated valve when the fire detector is activated, so when the existing sprinkler fire extinguishing equipment piping is used to update the vacuum sprinkler fire extinguishing equipment, Even if existing sprinkler heads not provided with an urging means are mixed, there is no risk of failing to extinguish.

Further, the control device for the sprinkler fire extinguishing equipment according to the present invention includes an operation mode setting means, so that the condition for opening the pre-actuating valve is a single lock method or a double lock method. Regardless of whether the operation mode is the single mode or the normal mode, the same control device can be used to control using a common program. For this reason, since control software and hardware can be unified, the vacuum pre-actuated sprinkler fire extinguishing equipment can be manufactured at a lower cost than before due to the mass production effect of the control device.
For example, when the control device for the sprinkler fire extinguishing equipment according to the present invention includes the operation mode setting means, the fire determination means in a state where the condition setting means is set to the single lock method and the operation mode setting means is set to the normal mode. Open the pre-actuating valve when it is judged that there is a fire.

It is a lineblock diagram showing the sprinkler fire extinguishing equipment concerning Embodiment 1 of the present invention. It is a block diagram of the fire extinguishing system control board in the spring fire extinguishing equipment which concerns on Embodiment 1, 2 of this invention. It is a control flow figure of the vacuum pump in the sprinkler fire extinguishing equipment concerning Embodiments 1 and 2 of the present invention. It is a control flowchart which shows an example of control of the pre-acting valve in the sprinkler fire extinguishing equipment which concerns on Embodiment 1, 2 of this invention. It is a control flowchart which shows an example of control of the vacuum piping interruption | blocking means and the quick suction switching means in the sprinkler fire extinguishing equipment which concerns on Embodiment 1, 2 of this invention. It is a control flowchart which shows an example of control of the pre-acting valve in the sprinkler fire extinguishing equipment which concerns on Embodiment 1, 2 of this invention, a vacuum piping interruption | blocking means, and the quick suction switching means. It is a block diagram which shows the sprinkler fire extinguishing equipment which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows an example of the three-way valve (Vacuum piping interruption | blocking means and opening / closing means for quick suction) provided in the sprinkler fire extinguishing equipment which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows an example of the three-way valve (Vacuum piping interruption | blocking means and opening / closing means for quick suction) provided in the sprinkler fire extinguishing equipment which concerns on Embodiment 2 of this invention.

Embodiment 1 FIG.
Hereinafter, the sprinkler fire extinguishing equipment according to the first embodiment will be described.

FIG. 1 is a configuration diagram illustrating a sprinkler fire extinguishing facility according to Embodiment 1 of the present invention.
The sprinkler fire extinguishing equipment according to Embodiment 1 includes a sprinkler head 2, a pre-actuating valve 22, a primary side pipe 11, a secondary side pipe 12, a vacuum pipe (a vacuum main pipe 14, a vacuum branch pipe 17), a vacuum pump 24, The on-off valve 260 is a vacuum pipe shutoff means, a head operation detection means (pressure switch 31, pressure increase switch 32 (pressure increase rate detection means)), a pressurized water supply device 21 and the like.

  The protective section 1 is provided with a plurality of sprinkler heads 2. The protective section 1 is provided with a fire detector 3 (fire detecting means) for detecting a fire that has occurred in the protective section 1. The fire detector 3 is electrically connected to a fire receiver 4 (fire determination means), and the fire receiver 4 that has received a signal that the fire detector 3 has detected a fire makes a fire determination. When the fire receiver 4 determines that there is a fire, it sends a fire signal to the fire extinguishing system control panel 5. The fire detector 3 and the fire receiver 4 constitute an automatic fire alarm facility, and the fire extinguishing system control panel 5 and its terminal device group constitute a control device for the sprinkler fire extinguishing facility.

  The fire detector 3 according to the first embodiment has at least one of temperature, smoke concentration, mid-infrared radiation amount in the 4.3 μm band, ultraviolet radiation amount, carbon monoxide concentration, and carbon dioxide concentration. It is configured to detect as a physical quantity based on fire. Also, the fire receiver 4 according to the first embodiment initializes (initializes and resets) the fire detector 3 once the physical quantity is equal to or greater than a predetermined value and when the physical quantity is equal to or greater than the predetermined value. Then, the physical quantity detected by the fire detector 3 again exceeds the predetermined value within a predetermined time range, the rate of increase of the physical quantity exceeds the predetermined value, and each of the different physical quantities exceeds the predetermined value. A fire when at least two conditions are satisfied, that the increase rate of each of the plurality of different physical quantities is greater than or equal to a predetermined value, and the relative ratio of the plurality of different physical quantities satisfies a predetermined range. It is the structure to judge. By configuring the fire detector 3 and the fire receiver 4 in this way, it is possible to improve the accuracy of fire judgment and prevent the pre-actuating valve 22 from being accidentally opened due to factors other than fire.

  Here, the fire receiver 4 according to the first embodiment has a self-diagnosis function. For example, when the communication between the fire detector 3 and the fire receiver 4 is interrupted due to disconnection or the like, When the device itself fails, the failure signal is sent to the fire extinguishing system control panel 5. In addition, when the fire receiver 4 is in a state in which the fire detector 3 is detected in a simulated manner and the fire detector 3 is inspected for proper operation, the fire receiver 4 A signal during inspection is sent to the fire extinguishing system control panel 5. In addition, if there is a possibility that a fire signal may be sent out after inspection or repair by the fire receiver 4, a fire signal is sent to the fire extinguishing system control panel 5 by operating the interlock cut-off switch provided in the fire receiver 4. Do not send, and instead send a signal indicating that the interlock is cut off.

FIG. 2 is a block diagram of a fire extinguishing system control panel in the spring fire extinguishing equipment according to Embodiment 1 of the present invention.
The fire extinguishing system control panel 5 includes a control unit 5a, a storage unit 5b, an alarm unit / display unit 5c, a charging condition setting unit 5d which is a condition setting unit, an operation mode setting unit 5e which is an operation mode setting unit, a transmission unit 5f, And the input part 5g is provided.

Specifically, the input unit 5g receives a signal (fire signal, signal during inspection, signal during failure, signal during interlocking, etc.) sent from the above-described fire receiver 4, and sends the signal to the control unit 5a. Is sent out.
The transmission unit 5f is connected to the remote start valve 22b, which is an electric pilot valve that drives the pre-actuating valve 22, and the water flow detection switch 22a (which detects the passage of fire-fighting water due to the opening of the pre-actuating valve 22). Flowing water detection means), an on-off valve 260 serving as a vacuum pipe shut-off means, an on-off valve 261 serving as a quick suction on-off means, a pressure switch 31, and a pressure rise switch 32.

  The operation mode setting unit 5e performs the pre-operation based on at least the normal mode in which the pre-action valve 22 is opened based on at least the fire determination result of the fire receiver 4, or only the detection of the sprinkler head 2 being opened by the head operation detecting means. One of the single modes for opening the valve 22 is set. In the first embodiment, either the pressure switch 31 that operates at a predetermined pressure or the pressure increase switch 32 that operates when the pressure increase per unit time (pressure increase rate) exceeds a predetermined value. When the control unit 5a receives that the operation has been performed, the control unit 5a determines that the sprinkler head has been opened.

  The operation mode setting unit 5e according to the first embodiment sets the single mode when receiving any of the signal under inspection, the failure signal, and the signal during interlocking from the fire receiver 4. Is configured to do. As described above, when the signal from the fire receiver 4 during inspection, failure or interlocking disconnection is received, the operation mode is automatically shifted to the single mode, so that the fire detector 3 or the fire receiver 4 The fire can be surely extinguished even if the fire is not activated, and the pre-actuating valve 22 can be prevented from being accidentally opened even if a fire signal is accidentally sent from the fire receiver 4.

  In addition to the above-described inspection of the fire detector 3 by the fire receiver 4, the worker uses the inspection tool to artificially set the surrounding environment of the fire detector 3 to a fire state, and the fire detector 3 and the fire receiver 4. There are also cases where a periodic check is made to see if the device operates normally. In such a case, since a fire signal is sent from the fire receiver 4 to the fire extinguishing system control panel 5, when the operation mode setting unit 5e is in the normal mode, the pre-actuating valve 22 is opened, and the protection section 1 is erroneously set. There is a risk of water discharge. For this reason, the operation mode setting unit 5e according to the first embodiment can be set to the single mode by manual operation. As described above, when the fire detector 3 and the fire receiver 4 are regularly inspected, the operation mode is manually set to the single mode in advance so that the sprinkler fire extinguishing equipment can be prevented from functioning and fire can be prevented. Even if a fire signal is accidentally sent from the receiver 4, the pre-actuating valve 22 can be prevented from being accidentally opened.

  The water filling condition setting unit 5d sets the method for opening the pre-actuating valve 22 to either a single lock method or a double lock method. When the fire detector 3 is activated and a fire is judged, the control method for opening the pre-actuating valve 22 is a single lock method. The fire detector 3 is actuated and a fire is judged and the sprinkler head 2 is detected to be opened. Then, the control system that opens the pre-actuating valve 22 is referred to as a double lock system. In the first embodiment, the water filling condition setting unit 5d is stored in advance in the storage unit 5b, which is a storage unit, and is managed so as not to be operated by a third party who does not have setting authority, or, for example, fire extinguishing The switch is provided on the system control panel 5 and is configured by any of the switches (not shown) that are locked and managed so as not to be operated by a third party. Thereby, it is possible to prevent the water filling condition from being changed by a third party who does not have the setting authority.

  The alarm unit / display unit 5c indicates that the pressure in the secondary side pipe 12 has risen abnormally when the head operation detecting means detects the sprinkler head 2 being opened with the pre-actuating valve 22 not opened. It is an alarm. Moreover, when the flowing water detection switch 22a detects flowing water to the secondary side of the pre-actuating valve 22, the alarm unit / display unit 5c displays that the water is being discharged. Note that the alarm means, for example, that an alarm sound is generated by a speaker or the like, or an abnormal increase in the pressure of the secondary side pipe 12 is displayed on the display unit.

The storage unit 5b includes a control program and parameters (predetermined values for determining whether the sprinkler head is opened) necessary for controlling the remote start valve 22b, the on-off valve 260 and the on-off valve 261 that are vacuum pipe shut-off means. Is memorized.
Based on the signal received from the transmission unit 5f, the setting conditions of the operation mode setting unit 5e and the water filling condition setting unit 5d, and the stored data in the storage unit 5b, the control unit 5a passes through the transmission unit 5f and the repeater 51. The remote start valve 22b, the on-off valve 260 serving as a vacuum pipe shut-off means, the on-off valve 261 serving as a quick suction on-off means, and the like are controlled. Further, the control unit 5a causes the alarm unit / display unit 5c to warn of an abnormal increase in the pressure of the secondary side pipe 12, and to display that the water is being discharged.

  Focusing on FIG. 1 again, the description of the overall configuration of the sprinkler fire extinguishing equipment will be continued.

The pressurized water supply device 21 is electrically connected to the fire extinguishing pump control panel 7 and is started by a pressure drop accompanying opening of the pre-actuating valve 22 to suck up water in the fire extinguishing water tank 10.
Each of the plurality of sprinkler heads 2 is connected to the falling pipe 13. Each of the falling pipes 13 is connected to the secondary side pipe 12. One end of the secondary side pipe 12 is connected to one end of the pre-actuating valve 22 that is normally closed and is electrically opened in the event of a fire. The other end of the pre-actuating valve 22 is connected to one end of the primary side pipe 11. The other end (base end side) of the primary side pipe 11 is connected to the discharge port of the pressurized water supply device 21. The primary side pipe 11 is provided with a flow rate control means 23 for limiting the flow rate of the fire-extinguishing water discharged by a constant flow valve or an orifice to a predetermined value. This is to prevent the fire hammer water from being supplied at an excessive flow rate toward the secondary side pipe 12 having a negative pressure when the pre-actuating valve 22 is opened, thereby preventing water hammer. The pressurized water supply device 21, the primary side pipe 11, the flow rate control means 23, and the pre-actuating valve 22 constitute a water supply device that pumps fire-extinguishing water to the secondary side pipe 12.

  On the other hand, the other end of the secondary pipe 12 is connected to one end of the terminal test valve 25. A drain pipe 15 is connected to the other end of the terminal test valve 25. When the secondary side pipe 12 is filled by a water leak test, inspection, etc. of the sprinkler fire extinguishing equipment, the water filled in the secondary side pipe 12 is a drain valve (not shown) provided in the end test valve 25 and the pre-actuating valve 22. It is discharged outside by opening. Normally, the end test valve 25 is in a closed state.

  Further, the secondary side pipe 12 is provided with one of the on-off valves 260 (vacuum pipe shut-off means) that is normally open and closes in conjunction with the opening of the pre-actuating valve 22 via the vacuum pipe introduction section 16. The ends are connected. In addition, one end of the vacuum branch pipe 17 is connected to the other end of the on-off valve 260. The other end of the vacuum branch pipe 17 is connected to a vacuum main pipe 14 to which a vacuum pump 24 is connected. That is, the vacuum pump 24 sucks the air in the secondary side pipe 12 through the vacuum main pipe 14, the vacuum branch pipe 17, the on-off valve 260 and the vacuum pipe introduction unit 16, and makes the secondary side pipe 12 have a negative pressure. ing. The vacuum main pipe 14 is connected to a pressure switch 81 (vacuum switch), and the vacuum pump 24 is controlled via the vacuum pump control panel 8 so that the internal pressure of the vacuum main pipe 14 becomes a predetermined value or less. .

  Further, the vacuum main pipe 14 is connected to a vacuum branch pipe 17 of a sprinkler fire extinguishing equipment of another system different from the sprinkler fire extinguishing equipment shown in FIG. ) That is, the vacuum main pipe 14 and the vacuum pump 24 are shared by a plurality of sprinkler fire extinguishing facilities.

  In the vacuum branch pipe 17 described above, the pressure switch 31 is operated from the secondary side pipe 12 side toward the vacuum pump 24 side, and the pressure rise is detected when the pressure rise operates at a predetermined value or more to detect the opening of the sprinkler head 2. A switch 32 and an orifice 33 (differential pressure generating means) are sequentially provided. By providing the orifice 33, even if the vacuum pump 24 is operated, the pressure in the vacuum branch pipe 17 on the secondary side pipe 12 side from the orifice 33 becomes a value close to the vacuum pressure in the secondary side pipe 12. . For this reason, by providing the orifice 33, the pressure switch 31 and the pressure increase switch 32 can detect the opening of the sprinkler head 2.

  The vacuum branch pipe 17 is provided with a bypass pipe 180 that bypasses the orifice 33. The bypass pipe 180 is normally shut off, and when the head operation detecting means detects the opening of the sprinkler head 2, the on-off valve 261 (rapid suction opening / closing means) communicates with the bypass pipe 180. ) Is provided. As will be described later, when the sprinkler head 2 is opened due to damage or the like, in order to prevent water accumulated in the secondary side pipe 12 (particularly the falling pipe 13) from leaking, the first embodiment is concerned. The sprinkler head performs a quick suction operation. By providing the bypass pipe 180 and the on-off valve 261, the air in the secondary side pipe 12 is sucked into the vacuum pump 24 through the bypass pipe 180 and the on-off valve 261 during the quick suction operation. For this reason, during the rapid suction operation, the amount of air passing through the orifice 33 causing pressure loss can be suppressed, and the inside of the secondary side pipe 12 can be strongly sucked by the vacuum pump 24 from the bypass pipe 180 with a minimum pressure loss. it can.

  In addition, the sprinkler fire extinguishing equipment according to the first embodiment is configured such that the vacuum branch pipes 17 of the sprinkler fire extinguishing equipment of a plurality of systems are connected to the vacuum main pipe 14 as described above. For this reason, when a fire occurs in a protection zone other than the protection zone 1, water (extinguishing water) flows into the vacuum main pipe 14 from the sprinkler fire extinguishing equipment provided in the protection zone, and the water is sprinkler shown in FIG. There is a possibility of flowing into the vacuum branch pipe 17 in the fire extinguishing equipment. Therefore, as shown in FIG. 1, a check valve for restricting the flow from the vacuum main pipe 14 side (vacuum pump 24 side) to the orifice 33 is provided in the vacuum branch pipe 17 closer to the vacuum main pipe 14 than the orifice 33. 27 is provided. Since the check valve 27 has a smaller channel cross-sectional area than the vacuum branch pipe 17, pressure loss occurs when water or air flows through the check valve 27. For this reason, the bypass pipe 180 according to the first embodiment is connected to the vacuum branch pipe 17 so as to bypass the check valve 27 in addition to the orifice 33. Thereby, at the time of said rapid suction operation | movement, it can suppress that suction force falls by the pressure loss which generate | occur | produces in the non-return valve 27. FIG.

Then, operation | movement of the sprinkler fire extinguishing equipment comprised as mentioned above is demonstrated.
First, the operation method of the vacuum pump 24 will be described.

FIG. 3 is a control flow diagram of the vacuum pump in the sprinkler fire extinguishing facility according to Embodiment 1 of the present invention.
When the operation of the sprinkler fire extinguishing equipment is started, the vacuum pump control panel 8 determines whether or not the detected value of the pressure switch 81 is equal to or higher than a predetermined upper limit value (step S001). If the detected value of the pressure switch 81 is equal to or higher than the predetermined upper limit value, the vacuum pump control panel 8 starts the operation of the vacuum pump 24, and the detected value of the pressure switch 81 is set to be smaller than the predetermined upper limit value. It is determined whether or not it is equal to or less than the predetermined lower limit value (step S002). On the other hand, if the detected value of the pressure switch 81 is lower than the predetermined upper limit value, the vacuum pump control panel 8 proceeds to step S003.

If the detected value of the pressure switch 81 is not less than or equal to the predetermined lower limit value in step S002, the vacuum pump control panel 8 continues the operation of the vacuum pump 24. On the other hand, if the detected value of the pressure switch 81 is less than or equal to the predetermined lower limit value in step S002, the vacuum pump control panel 8 determines that the predetermined time has elapsed since the detected value of the pressure switch 81 is less than or equal to the predetermined lower limit value. It is determined whether or not (step S003). If a predetermined time has elapsed since the detected value of the pressure switch 81 becomes equal to or lower than the predetermined lower limit value, the vacuum pump control panel 8 determines that the pressure in the secondary side pipe 12 and the vacuum branch pipe 17 is also the predetermined lower limit value. It is determined that the following has occurred, the vacuum pump 24 is stopped, and the process returns to step S001. On the other hand, if the predetermined time has not elapsed since the detected value of the pressure switch 81 becomes equal to or lower than the predetermined lower limit value, the vacuum pump control panel 8 determines that the detected value of the pressure switch 81 becomes equal to or lower than the predetermined lower limit value. Step S003 is repeated until a predetermined time has elapsed.
By controlling the vacuum pump 24 in this way, the pressure in the secondary side pipe 12 and the vacuum branch pipe 17 can be kept below a predetermined value during normal operation.
Instead of the control flow as described above, a time sufficient for the pressure in the secondary side pipe 12 and the vacuum branch pipe 17 to become a predetermined value or less is determined as a predetermined time, and the detected value of the pressure switch 81 is When the pressure reaches a predetermined upper limit value or more, the vacuum pump control panel 8 may perform timer control so that the vacuum pump 24 is operated for the predetermined time.

  Next, operations of the pre-actuating valve 22 and the on-off valve 260 (vacuum pipe shutoff means) will be described. Here, as described above, the on-off valve 260 is closed in conjunction with the opening of the pre-actuating valve 22. For this reason, as the interlocking operation of the pre-actuating valve 22 and the on-off valve 260, the interlocking operation of closing the on-off valve 260 after opening the pre-actuating valve 22 and the interlocking operation of opening the pre-acting valve 22 after closing the on-off valve 260. There is movement. In the following, first, the operation of the pre-actuating valve 22 and the on-off valve 260 (vacuum pipe shut-off means) when performing the interlocking operation of closing the on-off valve 260 after opening the pre-actuating valve 22 will be described with reference to FIGS. Will be described.

  FIG. 4 is a control flowchart showing an example of control of the pre-actuating valve in the sprinkler fire extinguishing facility according to Embodiment 1 of the present invention. FIG. 5 is a control flow diagram showing an example of control of the vacuum pipe shutoff means and the quick suction opening / closing means in the sprinkler fire extinguishing equipment.

  As shown in FIG. 4, when the set operation mode is the normal mode (NO in step S100), the process proceeds to step S101, and it is determined whether or not the fire detector 3 as the fire detection means detects a fire. The When the fire detector 3 detects a fire (YES in step S101), the fire receiver 4 as a fire determination means determines whether or not a fire has occurred based on the operation of the fire detector 3. A determination is made (step S102). When it is determined that a fire has occurred, the fire receiver 4 sends a fire signal to the fire extinguishing system control panel 5. When it is determined that no fire has occurred (NO in steps S101 and S102), the process returns to step S100.

  The fire extinguishing system control panel 5 that has received the fire signal determines whether the water filling condition setting unit 5d, which is the condition setting means, is set to the single lock method or the double lock method (step S103). . The water filling condition setting unit 5d is set in advance to either a single lock method or a double lock method according to the installed sprinkler fire extinguishing equipment. When the water filling condition setting unit 5d is set to the single lock method, the fire extinguishing system control panel 5 opens the pre-actuating valve 22 (step S106).

  If the water filling condition setting unit 5d is set to the double lock system, the sprinkler head 2 is opened based on the signals from the head operation detecting means (the pressure switch 31 and the pressure increase switch 32) in steps S104 and S105. A further determination is made as to whether or not it is plugged. Specifically, when the pressure switch 31 is actuated, that is, when the secondary side pipe 12 and the vacuum branch pipe 17 become equal to or higher than a predetermined pressure (step S104), it is assumed that the sprinkler head 2 is opened due to a fire, and the fire extinguishing system The control panel 5 opens the pre-actuating valve 22 (step S106). Even when the pressure switch 31 is not activated, the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 is a predetermined value when the pressure increase switch 32 is operated. When it becomes above (step S105), the fire extinguishing system control panel 5 opens the pre-actuating valve 22 on the assumption that the sprinkler head 2 is opened due to a fire (step S106). When the pressure switch 31 and the pressure increase switch 32 are not operated, the process returns to step S100.

  In addition, when detecting a fire with a head operation | movement detection means, step S105 should just be provided at least. In other words, at least the pressure increase switch 32 (pressure increase rate detection means) may be provided as the head operation detection means. This is because when the pressure in the secondary side pipe 12 is extremely lowered immediately after the vacuum pump 24 is operated, the pressure that is activated when the secondary side pipe 12 and the vacuum branch pipe 17 become a predetermined pressure or higher. In the switch 31, it takes time to detect the opening of the sprinkler head 2, and the opening of the pre-actuating valve 22 is delayed. However, if the pressure increase switch 32 that operates when the pressure increase (pressure increase rate) per unit time of the secondary side pipe 12 and the vacuum branch pipe 17 exceeds a predetermined value, the secondary side pipe 12 and Since the opening of the sprinkler head 2 can be detected regardless of the absolute value of the pressure of the vacuum branch pipe 17, the opening of the sprinkler head 2 can be detected at an early stage.

  On the other hand, when the set operation mode is the single mode (YES in step S100), in steps S104 and S105, the sprinkler head 2 is opened using the head operation detection means (pressure switch 31, pressure increase switch 32). A determination is made whether or not. Specifically, when the pressure switch 31 is actuated, that is, when the secondary side pipe 12 and the vacuum branch pipe 17 become equal to or higher than a predetermined pressure (step S104), it is assumed that the sprinkler head 2 is opened due to a fire, and the fire extinguishing system The control panel 5 opens the pre-actuating valve 22 (step S106). Even when the pressure switch 31 is not activated, the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 is a predetermined value when the pressure increase switch 32 is operated. When it becomes above (step S105), the fire extinguishing system control panel 5 opens the pre-actuating valve 22 on the assumption that the sprinkler head 2 is opened due to a fire (step S106). When the pressure switch 31 and the pressure increase switch 32 are not operated, the process returns to step S100.

  As shown in FIG. 5, after the operation of the sprinkler fire extinguishing equipment is started (after the monitoring operation of the protection section 1 is started), when the flowing water detection switch 22a is activated, that is, the pre-actuation valve 22 is opened and the pre-operation is performed. When water flows to the secondary side of the valve 22 (step S201), the fire extinguishing system control panel 5 closes the on-off valve 260 that is a vacuum pipe shut-off means (step S202). Thereby, it is possible to prevent water flowing into the secondary side pipe 12 from flowing into the vacuum pump via the vacuum branch pipe 17 and the vacuum main pipe 14, and the vacuum pump 24 is overloaded and stops or breaks down. Can be prevented. When the running water detection switch 22a is activated, the fire extinguishing system control panel 5 displays that the water is being discharged by the alarm / display unit 5c.

  On the other hand, when the pressure switch 31 is operated in a state where the flowing water detection switch 22a is not operated, that is, when the secondary side pipe 12 and the vacuum branch pipe 17 are equal to or higher than a predetermined pressure (step S203), the fire extinguishing system. The control panel 5 warns the abnormal rise of the pressure in the secondary side pipe 12 by the alarm / display unit 5c, and opens the on-off valve 261 which is a quick suction opening / closing means to allow the bypass pipe 180 to communicate and perform quick suction. The operation is performed (step S206), and the process returns to step S201.

  Even when the pressure switch 31 is not activated, the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 is a predetermined value when the pressure increase switch 32 is operated. When the above is reached (step S204), the fire extinguishing system control panel 5 warns the alarm / display unit 5c that the pressure in the secondary side pipe 12 has risen abnormally, and also opens and closes a valve 261 that is an opening / closing means for rapid suction. Is opened and the bypass pipe 180 is communicated to perform a quick suction operation (step S206), and the process returns to step S201.

  When both the pressure switch 31 and the pressure increase switch 32 are not operated, the fire extinguishing system control panel 5 does not warn the alarm / display unit 5c that the pressure in the secondary side pipe 12 has abnormally increased, The monitoring operation is continued while the bypass pipe 180 is shut off by the on-off valve 261 (step S205).

  Here, when the flowing water detection switch 22a is not operated (that is, when the pre-actuating valve 22 is not opened), the pressure switch 31 or the pressure increase switch 32 is operated, which means that the sprinkler head 2 is damaged. It may be possible to open the plug or the secondary side pipe 12 is damaged. For this reason, the alarm / display unit 5c gives an alarm that the pressure in the secondary side pipe 12 has risen abnormally, so that the sprinkler head 2 or the secondary side pipe 12 can be quickly detected. It is possible to deal with repairs of damaged parts at an early stage. Further, when the sprinkler head 2 is damaged and opened, water accumulated in the secondary side pipe 12, particularly in the falling pipe 13, leaks into the protective section 1. However, by performing the rapid suction operation, the inside of the secondary side pipe 12 can be strongly suctioned by the vacuum pump 24 with a minimum pressure loss. For this reason, it is possible to prevent water accumulated in the secondary side pipe 12, particularly the falling pipe 13, from leaking into the protective compartment 1.

4 and 5, when the interlocking operation for closing the opening / closing valve 260 is performed after the pre-actuating valve 22 is opened, the pre-acting valve 22 can be opened early, so that the sprinkler head 2 can discharge water early. The effect that it can be done can also be acquired.
The above operation is an operation flow when the operation mode setting unit 5e is set to the normal mode. When the operation mode setting unit 5e is set to the single mode, when the pressure switch 31 or the pressure increase switch 32 is operated, the pre-actuating valve 22 is opened and water discharge is started according to the control flow of FIG. Accordingly, since the flowing water detection switch 22a is activated, the flow does not proceed to step 203 when the flowing water detection switch 22a is not activated (NO in step S201). When the flowing water detection switch 22a is actuated (step S201), the fire extinguishing system control panel 5 closes the on-off valve 260 that is a vacuum pipe shutoff means (step S202).

  Next, the operation of the pre-actuating valve 22 and the on-off valve 260 (vacuum pipe shut-off means) when performing an interlocking operation for opening the pre-actuating valve 22 after closing the on-off valve 260 will be described using FIG.

FIG. 6 is a control flow diagram showing an example of control of the pre-actuating valve, the vacuum pipe shutoff means, and the quick suction opening / closing means in the sprinkler fire extinguishing equipment according to Embodiment 1 of the present invention.
As shown in FIG. 6, when the set operation mode is the normal mode (NO in step S300), the process proceeds to step S301, and it is determined whether or not the fire detector 3 as the fire detection means detects a fire. The When the fire detector 3 detects a fire (YES in step S301), the fire receiver 4 as a fire determination unit determines whether or not a fire has occurred based on the operation of the fire detector 3. A determination is made (step S302). When it is determined that a fire has occurred, the fire receiver 4 sends a fire signal to the fire extinguishing system control panel 5. If it is determined that no fire has occurred (NO in steps S301 and S302), the process proceeds to step S311.

The fire extinguishing system control panel 5 that has received the fire signal determines whether the charging condition setting unit 5d, which is the condition setting means, is set to the single lock method or the double lock method (step S303). . The water filling condition setting unit 5d is set in advance to either the single lock method or the double lock method according to the installed sprinkler fire extinguishing equipment. When the water filling condition setting unit 5d is set to the single lock method, the fire extinguishing system control panel 5 performs control to close the on-off valve 260 which is a vacuum pipe shutoff means (step S306). Then, the fire extinguishing system control panel 5 closes the on-off valve 260 when the on-off valve 260 is confirmed to be closed (when a limit switch signal is confirmed, etc., step S307) or even when the on-off valve 260 is not confirmed to be closed. When a predetermined time has elapsed since the control was performed (step S308), the pre-actuating valve 22 is opened (step S309).
If the water filling condition setting unit 5d is set to the double lock method, the sprinkler head 2 is opened based on the signals from the head operation detecting means (the pressure switch 31 and the pressure increase switch 32) in steps S304 and S305. A further determination is made as to whether or not it is plugged. Specifically, when the pressure switch 31 is activated, that is, when the secondary side pipe 12 and the vacuum branch pipe 17 are equal to or higher than a predetermined pressure (step S304), or when the pressure increase switch 32 is activated, that is, When the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 exceeds a predetermined value (step S305), it is determined that the sprinkler head 2 has been opened due to a fire, and the fire extinguishing system is controlled. The panel 5 performs control to close the on-off valve 260 that is a vacuum pipe shut-off means (step S306). Then, the fire extinguishing system control panel 5 closes the on-off valve 260 when the on-off valve 260 is confirmed to be closed (when a limit switch signal is confirmed, etc., step S307) or even when the on-off valve 260 is not confirmed to be closed. When a predetermined time has elapsed since the control was performed (step S308), the pre-actuating valve 22 is opened (step S309). When the pressure switch 31 and the pressure increase switch 32 are not operated, the monitoring operation is continued, and the process returns to step S300.
In the case of the control flow shown in FIG. 6, if it takes time to close the on-off valve 260, the loss time in step 307 increases, delaying the start of water discharge, and the initial fire extinguishing before the fire expands may fail. Therefore, it is desirable that the on-off valve 260 is a fast acting type.

  If no fire has occurred (NO in steps S301 and S302), the process proceeds to step S311. In step S311, if the pressure switch 31 is activated, that is, the secondary side pipe 12 and the vacuum branch pipe 17 are predetermined. The fire extinguishing system control panel 5 alerts that the pressure in the secondary side pipe 12 has risen abnormally by the alarm / display unit 5c and opens the on-off valve 261 which is a quick suction on / off means. Then, the bypass pipe 180 is connected to perform a quick suction operation (step S314), and the process returns to step S300.

  Even when the pressure switch 31 is not activated, the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 is a predetermined value when the pressure increase switch 32 is operated. When the above is reached (step S312), the fire extinguishing system control panel 5 warns the alarm / display unit 5c that the pressure in the secondary side pipe 12 has risen abnormally, and also uses the opening / closing valve 261 as an opening / closing means for rapid suction. Is opened and the bypass pipe 180 is communicated to perform a quick suction operation (step S314), and the process returns to step S300.

  When both the pressure switch 31 and the pressure increase switch 32 are not operated, the fire extinguishing system control panel 5 does not warn the alarm / display unit 5c that the pressure in the secondary side pipe 12 has abnormally increased, The monitoring operation is continued while the bypass pipe 180 is shut off by the on-off valve 261 (step S313).

  On the other hand, when the set operation mode is the single mode (YES in step S300), in steps S304 and S305, the sprinkler head 2 is operated based on the signals from the head operation detection means (pressure switch 31, pressure increase switch 32). A determination is made as to whether the plug has been opened. Specifically, when the pressure switch 31 is actuated, that is, when the secondary side pipe 12 and the vacuum branch pipe 17 are equal to or higher than a predetermined pressure (step S304), it is assumed that the sprinkler head 2 is opened due to a fire. The control panel 5 performs control to close the on-off valve 260 (step S306). Then, the fire extinguishing system control panel 5 closes the on-off valve 260 when the on-off valve 260 is confirmed to be closed (when a limit switch signal is confirmed, etc., step S307) or even when the on-off valve 260 is not confirmed to be closed. When a predetermined time has elapsed since the control was performed (step S308), the pre-actuating valve 22 is opened (step S309).

  Even when the pressure switch 31 is not activated, the pressure increase per unit time (pressure increase rate) of the secondary side pipe 12 and the vacuum branch pipe 17 is a predetermined value when the pressure increase switch 32 is operated. When it becomes above (step S305), fire extinguishing system control panel 5 performs control which closes on-off valve 260, assuming that sprinkler head 2 was opened by fire (step S306). Then, the fire extinguishing system control panel 5 closes the on-off valve 260 when the on-off valve 260 is confirmed to be closed (when a limit switch signal is confirmed, etc., step S307) or even when the on-off valve 260 is not confirmed to be closed. When a predetermined time has elapsed since the control was performed (step S308), the pre-actuating valve 22 is opened (step S309).

  When the pressure switch 31 and the pressure increase switch 32 are not operated, the fire extinguishing system control panel 5 does not warn the alarm / display unit 5c that the pressure in the secondary side pipe 12 has abnormally increased, and opens and closes the switch. The monitoring operation is continued while the bypass pipe 180 is shut off by the valve 261 (step S313).

As shown in FIG. 6, by performing an interlocking operation for opening the pre-actuating valve 22 after closing the on-off valve 260, water flowing into the secondary side pipe 12 is vacuum pumped through the vacuum branch pipe 17 and the vacuum main pipe 14. It is possible to reliably prevent the vacuum pump 24 from being stopped due to an overload and to be broken down.
In addition, when the on-off valve 260 is controlled and the pre-actuated valve 22 is opened after a predetermined time has elapsed, the on-off valve 260 does not close for some reason (for example, malfunction due to sticking or failure). Even so, the fire can be extinguished reliably.

  As described above, in the sprinkler fire extinguishing equipment configured as in the first embodiment, when the operation mode setting means is set to the normal mode, even if the condition for opening the pre-actuating valve 22 is the single lock system, it is double. Regardless of the locking method, even if each operation mode is the single mode or the normal mode, the same fire extinguishing system control panel 5 can be controlled using a common program. For this reason, since control software and hardware can be unified, the vacuum type pre-actuated sprinkler fire extinguishing equipment can be manufactured at a lower cost than before due to the mass production effect of the fire extinguishing system control panel 5.

Embodiment 2. FIG.
In the first embodiment, the vacuum pipe shutoff means is constituted by the on-off valve 260 and the quick suction opening / closing means is constituted by the on-off valve 261. However, the present invention is not limited to this, and the vacuum pipe shut-off means and the quick suction opening / closing means may be constituted by one three-way valve. In the second embodiment, items that are not particularly described are the same as those in the first embodiment, and the same functions and configurations are described using the same reference numerals.

FIG. 7 is a configuration diagram showing a sprinkler fire extinguishing facility according to Embodiment 2 of the present invention. FIG. 8 is an explanatory view showing an example of a three-way valve (vacuum pipe shut-off means and quick suction opening / closing means) provided in the sprinkler fire extinguishing equipment.
As shown in FIG. 7, the sprinkler fire extinguishing equipment according to the second embodiment includes a three-way valve 26 that functions as a vacuum pipe shutoff means and a quick suction opening / closing means. The three-way valve 26 has a primary side connected to the secondary side pipe 12 via the vacuum pipe introduction part 16, one end on the secondary side connected to the vacuum branch pipe 17, and the other end on the secondary side connected to the bypass pipe 18. It is connected to the end on the secondary side pipe 12 side.

  For example, as shown in FIG. 8, the three-way valve 26 includes a fixed portion 26a and a movable portion 26b. The fixed portion 26a is formed with a cylindrical hole and connection ports 26a1, 26a2, and 26a3 communicating with the hole. The vacuum pipe introduction part 16 is connected to the connection port 26a1, the vacuum branch pipe 17 is connected to the connection port 26a2, and the bypass pipe 18 is connected to the connection port 26a3. The movable portion 26b is formed in a columnar shape and is rotatably provided in a cylindrical hole portion of the fixed portion 26a. A connection channel 26b1 having a substantially L-shaped cross section is formed in the movable portion 26b.

For this reason, as shown in FIG. 8A, by rotating the movable part 26b so that the connection flow path 26b1 communicates with the connection port 26a1 and the connection port 26a2, the vacuum pipe introduction part 16 and the vacuum branch pipe 17 Will be in communication. That is, the vacuum pipe shutoff means is opened, and the quick suction opening / closing means shuts off the bypass pipe 18.
Further, as shown in FIG. 8B, the vacuum pipe introduction part 16 and the bypass pipe 18 communicate with each other by rotating the movable part 26b so that the connection flow path 26b1 communicates with the connection port 26a1 and the connection port 26a3. It becomes a state to do. That is, the vacuum pipe shut-off means is opened, and the quick suction switching means is in communication with the bypass pipe 18.
Further, as shown in FIGS. 8C and 8D, the movable portion 26b is rotated so that the connection flow path 26b1 does not communicate with the connection port 26a1, so that the vacuum pipe blocking means is closed.

  The three-way valve 26 shown in FIG. 8 is an example. For example, the three-way valve 26 may be configured as shown in FIG.

  Specifically, as shown in FIG. 9, the three-way valve 26 includes a fixed portion 26a and a movable portion 26c. The fixed portion 26a is formed with a cylindrical hole and connection ports 26a1, 26a2, and 26a3 communicating with the hole. The vacuum pipe introduction part 16 is connected to the connection port 26a1, the vacuum branch pipe 17 is connected to the connection port 26a2, and the bypass pipe 18 is connected to the connection port 26a3. The movable portion 26c is formed in a columnar shape, and is rotatably provided in a cylindrical hole portion of the fixed portion 26a. A connection channel 26c1 having a T-shaped cross section is formed in the movable portion 26c.

For this reason, as shown in FIG. 9 (a), by rotating the movable portion 26c so that the connection flow path 26c1 communicates with the connection port 26a1 and the connection port 26a2, the vacuum pipe introduction portion 16 and the vacuum branch tube 17 Will be in communication. That is, the vacuum pipe shutoff means is opened, and the quick suction opening / closing means shuts off the bypass pipe 18.
Also, as shown in FIG. 9B, the vacuum pipe introduction part 16 and the bypass pipe 18 communicate with each other by rotating the movable part 26c so that the connection channel 26c1 communicates with the connection port 26a1 and the connection port 26a3. It becomes a state to do. That is, the vacuum pipe shut-off means is opened, and the quick suction switching means is in communication with the bypass pipe 18.
Further, as shown in FIG. 8C, the vacuum pipe blocking means is closed by rotating the movable portion 26c so that the connection flow path 26c1 does not communicate with the connection port 26a1.

  As described above, in addition to the effects shown in the first embodiment, the vacuum pipe shut-off means and the quick suction opening / closing means are configured by one three-way valve as in the sprinkler fire extinguishing equipment according to the second embodiment. There is also an effect that the number of devices constituting the opening / closing means and the vacuum pipe blocking means can be reduced. In addition, it is possible to reduce the number of devices connected to the vacuum branch tube 17, thereby reducing the number of device connection points to the vacuum branch tube 17 and shortening the length of the vacuum branch tube 17 itself. For this reason, since it is possible to reduce the installation space of the equipment constituting the vacuum pipe shut-off means, the equipment such as the head operation detection means provided in the equipment or the vacuum branch pipe 17 is placed in a place such as a narrow pipe shaft. The construction to install in becomes easy.

  1 Protective section, 2 sprinkler head, 3 fire detector (fire detection means), 4 fire receiver (fire judgment means), 5 fire extinguishing system control panel, 5a control section, 5b storage section, 5c alarm section / display section, 5d Filling condition setting section (condition setting means), 5e operation mode setting section (operation mode setting means), 5f transmission section, 5g input section, 51 repeater, 7 fire pump control panel, 8 vacuum pump control panel, 10 fire prevention water tank 11 Primary side pipe, 12 Secondary side pipe, 13 Falling pipe, 14 Vacuum main pipe, 15 Drain pipe, 16 Vacuum pipe introduction part, 17 Vacuum branch pipe, 18, 180 Bypass pipe, 21 Pressurized water supply device, 22 Pre-acting valve, 22a Flow detection switch (flow detection means), 22b Remote start valve, 23 Flow restriction means, 24 Vacuum pump, 25 Terminal test valve, 26 Three-way valve (true Empty pipe shutoff means and quick suction open / close means), 26a fixed part, 26a1 connection port, 26a2 connection port, 26b, 26c movable part, 26b1, 26c1 connection flow path, 260 open / close valve (vacuum pipe shutoff means), 261 open / close valve (Rapid suction opening / closing means), 27 check valve, 31 pressure switch (head operation detection means), 32 pressure increase switch (pressure increase rate detection means, head operation detection means), 33 orifice (differential pressure generation means), 81 pressure switch.

Claims (3)

A fire detection means, a pressurized water supply device, a pre-acting valve, a primary side pipe provided on the primary side of the pre-acting valve and connected to the proximal end side, and a pre-acting valve; A secondary pipe provided on the secondary side to which the sprinkler head is connected, a vacuum pump for making negative pressure in the secondary pipe at normal times, and a vacuum pipe for connecting the secondary pipe and the vacuum pump A control device for a sprinkler fire extinguishing equipment used in a sprinkler fire extinguishing equipment comprising:
Fire determination means for making a fire determination based on the operation of the fire detection means;
The single lock system that opens the pre-actuating valve based only on the fire judgment result of the fire judgment means, or the sprinkler by the head operation detection means that detects the fire judgment result of the fire judgment means and the sprinkler head opening. A condition setting means for setting one of a double lock method for opening the pre-actuating valve with both detection of opening of the head; and
With
An apparatus for controlling a sprinkler fire extinguishing equipment, wherein the condition setting means is set to a single lock system when the existing sprinkler fire extinguishing equipment is replaced with a vacuum sprinkler fire extinguishing equipment.   A single mode in which the pre-actuating valve is opened only based on detection of the sprinkler head opening by the head actuating detection means, or a normal mode in which the pre-acting valve is opened based on at least a fire judgment result of the fire judging means. The sprinkler fire extinguishing equipment control device according to claim 1, further comprising an operation mode setting unit configured to set one of the modes.   When the condition setting means is set to the single lock system and the operation mode setting means is set to the normal mode, the pre-acting valve is controlled to open when the fire determination means determines that a fire has occurred. The control apparatus for a sprinkler fire extinguishing equipment according to claim 2.

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