JP7334926B2 - Pump device, control panel and control board - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pump device, a control panel and a control board used in a building.

Pumping devices for supplying water to buildings have long been known. As such a pump device, for example, a fire pump that supplies water to a sprinkler or the like in the event of a fire (see, for example, Patent Document 1) is known.

If such a pump device is stopped for a long time, there is a risk that parts made of metal materials of the pump will rust, and scales formed by deposition of inorganic salt compounds such as calcium, magnesium, and silica contained in water will build up inside the pump. may occur. When such rust and scale are generated in the pump, there is a risk that the rotating body such as the impeller and the rotating shaft will adhere to the fixed body such as the casing, and the rotation will be hindered. If the pump device is driven in this state, overcurrent may occur in the motor.

Therefore, in order to prevent the rotating body from sticking and to detect failures of the pump device, periodic inspection and maintenance operations are required.

Japanese Patent No. 6442338

However, if there is a long period of time between a periodical inspection or maintenance operation and the next periodical inspection or maintenance operation, the discovery of an abnormality in the pump system will be delayed, and the pump system may not be able to operate in the event of a fire. Further, if the motor is overcurrent and the current is continued, the motor may be damaged or catch fire. However, there is also the problem that in the event of a fire, it is necessary to energize the motor and drive the pump as much as possible.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a pump device, a control board, and a control panel capable of giving priority to driving the pump in the event of a fire while preventing damage to the motor.

According to one aspect of the present invention, a pump device includes a pump unit that has a motor and a pump, and is connected to a pipe that is closed at the end or in the middle, and determines that a current value supplied to the motor is an overcurrent. a storage unit that stores a threshold; detects a current value applied to the motor; compares the detected current value with the threshold; When the start signal of the pump unit is received from the fire judgment device provided in the fire extinguishing equipment, the detected current value is equal to or greater than the threshold value and a control unit for energizing the motor, wherein a plurality of the fire determination devices are provided, and the fire determination device is classified into at least two types, and the control unit controls the plurality of fires classified into at least two types. When the pump unit is activated by the activation signal received from the fire determination device of a predetermined type among the determination devices, and when the detected current value exceeds the threshold value, the motor is Stop the power supply and issue a warning to the outside.

According to one aspect of the present invention, the control panel is a control panel used in the above-described pump device, and includes the motor and the pump, and is connected to the pipe closed at the end or midway . The storage unit stores the threshold value for determining that the current value supplied to the motor of the pump unit is the overcurrent, and the current value applied to the motor is detected, and the detected current value and the threshold value are stored . When the detected current value is equal to or higher than the threshold value, the protective function is provided to stop the energization of the motor, and the fire determination device provided in the fire extinguishing equipment is connected to the pump unit. and the control unit that energizes the motor when the start signal is received, even if the detected current value is equal to or greater than the threshold value.

According to one aspect of the present invention, a control board is a control board used in the above-described pump device, and includes the motor and the pump, and is connected to the pipe closed at the end or midway . The storage unit stores the threshold value for determining that the current value supplied to the motor of the pump unit is the overcurrent, and the current value applied to the motor is detected, and the detected current value and the threshold value are stored . When the detected current value is equal to or higher than the threshold value, the pump unit has a protective function of stopping the energization of the motor, and the pump unit is started from the fire judgment device provided in the fire extinguishing equipment . When a signal is received, even if the detected current value is equal to or greater than the threshold value, the control unit energizes the motor, and a substrate on which the storage unit and the control unit are mounted. , provided.

Advantageous Effects of Invention According to the present invention, it is possible to provide a pump device, a control board, and a control panel capable of giving priority to driving the pump in the event of a fire while preventing damage to the motor.

Explanatory drawing which shows the structure of the water supply equipment which concerns on one Embodiment of this invention. The side view which shows the structure of the pump apparatus used for the same water supply equipment. The front view which shows the structure of the control panel used for the same pump apparatus. The front view which shows the internal structure of the same control panel. The side view which shows the structure of the pump apparatus which concerns on the modification of this invention. The side view which shows the structure of the pump apparatus which concerns on the modification of this invention.

(one embodiment)
A configuration of a pump device 1 according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG. In addition, in this embodiment, the pump apparatus 1 is demonstrated using the example of the fire-fighting pump apparatus used for the fire-extinguishing equipment 100 as water supply equipment.

FIG. 1 is an explanatory diagram showing the configuration of a fire extinguishing system 100 according to an embodiment of the present invention, FIG. 2 is a side view showing the configuration of a pump device 1, and FIGS. 3 is a front view showing the external appearance and internal configuration of a board 18; FIG.

As shown in FIG. 1, the pump device 1 is used in a fire extinguishing system 100 installed in a building. First, the configuration of the fire extinguishing equipment 100 will be described. As shown in FIG. 1 , the fire extinguishing system 100 includes a pump device 1 , an auxiliary pressurizing device 101 , a water discharge means 201 , a fire judgment device 301 and a water supply source 401 .

When the pressure in the pipe 501 connected to the water discharging means 201 drops, the auxiliary pressure device 101 automatically operates before the pump device 1 starts to recover the pressure in the pipe 501. It is a pump device that allows

The auxiliary pressurization device 101 includes, for example, an auxiliary pump unit 111, a pressure tank 112 provided on the secondary side of the auxiliary pump unit 111, a pressure detector 113 connected to the pressure tank 112, a priming tank 114, A control panel 115 is provided.

The auxiliary pump unit 111 includes an auxiliary motor 121 , an auxiliary pump 122 driven by the auxiliary motor 121 , and a connecting pipe 123 connected to the auxiliary pump 122 . Auxiliary motor 121 is electrically connected to control panel 115 . The auxiliary pump 122 has a primary side connected to the priming tank 114 and a secondary side connected to the connecting pipe 123 . The connecting pipe 123 is connected to the pipe 501 . More specifically, the connecting pipe 123 is the pipe 501 and is connected to the primary side of the water flow detector 314, which will be described later.

The pressure tank 112 is provided on the connecting pipe 123 .

A pressure detector 113 detects the pressure in the pressure tank 112 . Pressure detector 113 is electrically connected to control board 115 . The pressure detector 113 sends a signal of the detected pressure value to the control panel 115 .

A priming tank 114 is a water source for the auxiliary pump unit 111 .

The control panel 115 includes, for example, a storage section 131 and a control section 132 . The storage unit 131 stores, for example, an auxiliary starting pressure for starting the auxiliary pump unit 111 and an auxiliary stopping pressure for stopping the auxiliary pump unit 111 . The auxiliary starting pressure is set higher than the starting pressure of the pump unit 12 of the pump device 1 . Also, the auxiliary stop pressure is set lower than the shut-off pressure of the pump device 1 .

When the control unit 132 determines that the pressure detected by the pressure detector 113 is equal to or lower than the activation pressure stored in the storage unit 131 , the control unit 132 activates the auxiliary pump unit 111 . If the control unit 132 determines that the pressure detected by the pressure detector 113 during operation of the auxiliary pump unit 111 is equal to or higher than the stop pressure stored in the storage unit 131, the control unit 132 stops the auxiliary pump unit 111.

The water discharge unit 201 is, for example, a plurality of water dischargers provided for each floor of a building, or a pipe connected to another water discharge device. The water discharge means 201 discharges water to extinguish the fire by being opened at the time of fire. As a specific example, the water discharge means 201 includes, for example, a plurality of sprinklers 211, a fire hydrant 212, and a connecting water pipe 213.

The sprinkler 211 is branched and connected from the pipe 501 and includes a distribution pipe 211a arranged on each floor, and a plurality of sprinkler heads 211b provided for each floor provided on the distribution pipe 211a. The sprinkler 211 may also include a detector capable of detecting water volume (flow rate) and pressure between the installation pipe 211a and the sprinkler head 211b.

The sprinkler head 211b has, for example, a water discharge port that can discharge water onto the floor of the building by being opened by the heat of a fire and discharging water. Further, the sprinkler heads 211b are arranged so that, for example, when one of the sprinkler heads 211b provided on the same floor is opened and water is sprayed, the other sprinkler heads 211b provided on the same floor are also opened and can spray water. formed.

The fire hydrant 212 is provided indoors and/or outdoors of the building. Fire hydrant 212 is, for example, an indoor fire hydrant. The fire hydrant 212 includes, for example, a fire hydrant box 212a, a hose 212b housed in the fire hydrant box 212a and connected to the pipe 501, a nozzle 212c provided on the hose 212b, and an on-off valve provided on the nozzle 212c. ing. A water discharge port provided with an on-off valve is provided between the hose 212b and the pipe 501, and the hose 212b is fluidly connected to the pipe 501 by connecting the hose 212b to this water discharge port. .

The connecting water pipe 213 is provided, for example, indoors or outdoors of a building. The connecting water pipe 213 is a so-called fire brigade plug. The connecting water pipe 213 is, for example, a wet-type plug-in water outlet provided indoors.

The fire determination device 301 is an activation device that activates the pump device 1 . For example, the fire determination device 301 includes a fire alarm 311 , a fire hydrant manual activation device 312 , a remote activation device 313 , a water flow detector 314 , a hydrant interlock 315 , and a pressure detector 33 . The fire determination device 301 is electrically connected to the control panel 18 via a signal line 99, for example.

The fire alarm 311 senses smoke or heat, for example, and issues an activation signal for the pump unit 12 to the control panel 18 .

The fire hydrant manual activation device 312 is provided in the fire hydrant box 212a of the fire hydrant 212, for example. The fire hydrant manual activation device 312 is manually operated to issue an activation signal for the pump unit 12 to the control panel 18 .

The remote activation device 313 issues an activation signal for the pump unit 12 to the control panel 18, for example, by being remotely operated from a disaster prevention center or the like.

The water flow detector 314 activates a switch provided therein when a predetermined flow rate or flow rate of water flows in the pipe 501 , and issues an activation signal for the pump unit 12 to the control panel 18 . The switch provided inside the water flow detector 314 is, for example, a push-type microswitch, a paddle switch, or a secondary side of a valve provided inside the water flow detector 314. pressure switch provided.

The fire hydrant interlocking device 315 is provided in the fire hydrant box 212a of the fire hydrant 212, for example. The fire hydrant interlocking device 315 issues an activation signal for the pump unit 12 to the control panel 18, for example, when the hose 212b is manually extended.

The water supply source 401 is a water tank for fire extinguishing. A water supply source 401 is provided on the primary side of the pump device 1 .

The pipe 501 is provided on the secondary side of the pump device 1 and connected to the sprinkler 211 , the fire hydrant 212 and the connecting water pipe 213 . A water flow detector 314 is provided in the pipe 501 . The pipe 501 is closed by a sprinkler 211 , a fire hydrant 212 and a connecting water pipe 213 at the end or midway.

As shown in FIGS. 1 and 2, the pump device 1 includes a base 11, a pump unit 12, a discharge pipe 13, a pressure tank 14, an automatic on-off valve 15, a temperature detector 16, and a priming tank 17. , and a control panel 18 .

The base 11 is fixed to the installation surface of the pump device 1 of the building. The base 11 has a pump unit 12, a pressure tank 14, a priming tank 17 and a control panel 18 fixed on its upper surface.

The pump unit 12 has a pump 21 and a motor 22 . The pump 21 has a suction port 21a and a discharge port 21b. The pump 21 houses therein an impeller fixed to a rotating shaft. The pump 21 discharges the pressurized water to the secondary side.

The motor 22 is formed to be rotatable about its rotary shaft. The motor 22 drives the impeller of the pump 21 by rotating the rotating shaft. The motor 22 is electrically connected to the control board 18 via signal lines 99 .

The discharge pipe 13 has one end connected to the discharge port 21 b of the pump 21 and the other end connected to the pipe 501 . The discharge pipe 13 has a check valve 13a and a pressure detector 13b. The pressure detector 13b is connected to the control panel 18 via a signal line 99. As shown in FIG. The pressure detector 13b is formed so as to be able to detect the pressure inside the discharge pipe 13 and transmit it to the control panel 18 .

The pressure tank 14 has a tank 31 , a pressure gauge 32 and a pressure detector 33 . The tank 31 is formed so as to be able to store water of a predetermined pressure discharged from the pump 21 . The tank 31 is provided in the discharge pipe 13, for example. The pressure gauge 32 is formed so as to be able to detect the pressure inside the tank 31 and display it to the outside. The pressure detector 33 is connected to the control panel 18 via a signal line 99 . The pressure detector 33 is formed so as to be able to transmit the pressure inside the tank 31 to the control panel 18 .

For example, the automatic on-off valve 15 is provided on the secondary side of the pump unit 12 and on the primary side of the water flow detector 314, and is provided on the secondary side of the pump unit 12 and the primary side of the water flow detector 314. The connected branch pipe 15a is opened and closed. Here, the branch pipe 15a is, for example, a drain pipe connected to the drain port 15b or the like. In other words, the automatic on-off valve 15 is provided in the branch pipe 15a on the secondary side of the pump unit 12, and by opening the branch pipe 15a, the water on the secondary side of the pump unit 12 is drained to the drain port 15b.

The automatic on-off valve 15 is electrically connected to the control panel 18 by a signal line 99 . The automatic on-off valve 15 is normally closed, opens by a signal from the control panel 18, and drains the water existing in the secondary side of the pump unit 12 and the pipe 501 to the drain port 15b.

The temperature detector 16 is provided in the discharge pipe 13 or the pipe 501, for example. The temperature detector 16 detects the temperature of water in any of the pipes 13, 501 on the secondary side of the pump unit 12 or the surface temperature of any of the pipes 13, 501. The temperature detector 16 is electrically connected to the control board 18 via signal lines 99 . The temperature detector 16 transmits detected temperature information to the control panel 18 .

The priming tank 17 is connected to the pump 21 via a pipe 17a so as to be able to supply priming water to the pump 21 . The priming tank 17 is provided with an orifice in order to suppress the temperature rise of the pump 21 , and has a release pipe 17 b for squeezing a part of the water pressurized by the pump 21 and releasing it to the priming tank 17 .

The control panel 18 includes a control section 41 inside. The control panel 18 also includes an input device 42 , a storage section 43 , a notification section 44 , a communication section 45 and a terminal section 48 . The control board 18 also includes, for example, a control board 46 and a housing 47 .

The control board 46 is configured, for example, by mounting the control section 41, the storage section 43, the communication section 45, and the terminal section 48 on one board 46a. The housing 47 accommodates the control board 46 inside, and arranges the input device 42 and the notification unit 44 on a part of the outer surface. Further, the housing 47 accommodates therein a plurality of devices 38 such as a power transformer, a current measuring current transformer, an electromagnetic contactor, and a circuit breaker for wiring.

The controller 41 is connected to the motor 22 and the pressure detector 33 via signal lines 99 . The control unit 41 is electrically connected to the input device 42, the storage unit 43, the notification unit 44, and the communication unit 45 via a signal line 99 such as a bus line.

The control unit 41 is formed so as to be able to drive the motor 22 . The control part 41 is formed so as to be able to drive the motor 22 when it is determined that there is a fire. As a specific example, the control unit 41 drives the motor 22 according to the program stored in the storage unit 43 upon receiving the activation signal for the pump unit 12 issued from the fire determination device 301 . The control unit 41 has a function of detecting a current value when the motor 22 is energized.

The pressure detector 33, the water flow detector 314, and the fire hydrant interlocking device 315, which are used as the fire judgment device 301, may send a start signal for the pump unit 12 to the control panel 18 even when there is no fire. be. For example, when the pressure detector 33 is clogged with foreign matter such as sand in the detection part or the primary side piping of the detection part, the pressure near the detection part gradually decreases to a predetermined pressure or less, and the pump unit is connected to the control panel 18. 12 wake-up signals may be sent. For example, when water is leaking from the pipe on the secondary side of the pump unit 12, the pressure detector 33 gradually lowers the pressure to below a predetermined pressure, and sends a start signal for the pump unit 12 to the control panel 18. There is fear. For example, when the air enclosed in the pressure tank 14 dissolves in water, the pressure detector 33 may gradually decrease the pressure to below a predetermined pressure, and may send a signal to start the pump unit 12 to the control panel 18 . There is For example, if water is leaking from the pipe on the secondary side of the pump unit 12 , the water flow detector 314 may detect the water flow and send an activation signal for the pump unit 12 to the control panel 18 . For example, when the setting of the auxiliary pressure device 101 is inappropriate, the water flow detector 314 detects the water flow from the amount of water flowing when the auxiliary pressure device 101 is activated, and sends the start signal of the pump unit 12 to the control panel 18. There is fear. For example, after using the hose 212b in fire extinguishing training, the interlocking device 315 for the fire hydrant, if the storage condition in the fire hydrant box 212a is poor, the nozzle 212c falls and the hose 212b extends, causing the pump unit 12 to move to the control panel 18. There is a risk of sending an activation signal.

In addition, even if the fire determination device 301 issues a start signal for the pump unit 12 to the control panel 18 even though no fire has occurred as described above, the pump device 1 is sent to the disaster prevention center or the like to indicate that there is a fire. The determination device 301 transmits to the control panel 18 via the terminal section 48 information that the activation signal for the pump unit 12 has been issued. That is, the disaster prevention center or the like cannot immediately determine whether or not a fire has occurred, and needs to further confirm the information. Furthermore, together with the above transmission, an alarm notifying the occurrence of a fire resounds in the building, so it is necessary to avoid starting the pump unit 12 by the fire determination device 301 except when there is a fire.

The control unit 41 has a calendar function capable of managing dates and a clock function capable of managing time. The control unit 41 has a counter function that counts the elapsed time after the pump unit 12 is driven. The control unit 41 calculates the integrated value of the stop time of the pump unit 12 counted by the counter function after the driving of the pump unit 12 is stopped, the elapsed time after driving the pump unit 12, and the integrated value of the energization time of the control unit 41 and the motor 22. , detection values detected in each inspection operation, threshold values of current and pressure, history of energization and stoppage of the motor 22, opening and closing history of the automatic on-off valve, external transmission destination information, etc. are stored in the storage unit 43. have.

The control unit 41 has a function of transmitting information on the abnormality to the notification unit 44 when an abnormality occurs in the pump unit 12 . The control unit 41 is configured to be capable of transmitting history information such as the time counted by the counter function and past drive information of the pump unit 12 to the communication unit 45 based on instructions input from the input device 42 .

The input device 42 is formed so as to be able to input information such as date and time and instructions. The input device 42 is formed so as to be able to transmit input information to the control section 41 .

The storage unit 43 stores, for example, the starting pressure for starting the pump unit 12, the shut-off head during shut-off operation, and control programs for the pump unit 12 at the time of fire occurrence and each inspection operation. The storage unit 43 functions as a counter memory for the counter function of the control unit 41 .

Further, the storage unit 43 stores, as a threshold value, a current value for determining an overcurrent when the motor 22 is energized. For example, multiple thresholds are stored with different current values. As a specific example, the threshold includes at least a first threshold and a second threshold.

The first threshold is a current value lower than the second threshold. Note that when three or more thresholds including the first threshold and the second threshold are stored in the storage unit 43 as the plurality of thresholds, the first threshold has the lowest current value among the plurality of thresholds. set to the current value. The first threshold is set to a current value higher than the current value flowing through the motor 22 when the motor 22 is energized and the pump unit 12 performs rated operation and closed operation. For example, the first threshold is an overcurrent that is higher than the current value expected to occur during operation of the pump unit 12 due to an abnormality such as sticking, and even if the overcurrent is such an overcurrent, the motor 22 may be damaged or ignited. The current value is set to a current value at which secondary anomalies such as . As a specific example, the first threshold is set to be higher than the current value of the motor 22 that flows during normal rated operation and cut-off operation of the motor 22 and below the allowable current value of the motor 22 set by the manufacturer.

The second threshold is a current value higher than the first threshold, and is set to be unchangeable by the user, for example. When three or more thresholds including the first threshold and the second threshold are stored in the storage unit 43 as the plurality of thresholds, the second threshold is the highest current value among the plurality of thresholds. is set to The second threshold is set to a current value higher than the current value flowing through the motor 22 when the motor 22 is energized and the pump unit 12 performs rated operation and closed operation. For example, the second threshold is a current value at which a secondary abnormality such as damage or ignition of the motor 22 is most likely to occur among the plurality of thresholds. This is the current value generated in the motor 22 when the motor 22 cannot rotate due to an abnormality.

In addition, the storage unit 43 stores information about the pump device 1 such as the identification number, type, and position information of the pump unit 12, and an external device that transmits a warning when the pressure on the secondary side of the pump unit 12 rises. Information and the like of the external terminal 90 such as a personal computer or a tablet terminal that has been received is stored.

The notification unit 44 is formed so as to be able to notify the abnormality to the outside based on the information transmitted from the control unit 41 when an abnormality occurs in the pump unit 12 . The notification unit 44 is a display unit that displays information. The notification unit 44 includes, for example, a lamp that displays information by lighting or blinking, a sound that notifies information to the outside by sound, and a display that displays information.

The communication unit 45 is configured to be able to transmit and receive information to and from the outside. For example, the communication unit 45 outputs information transmitted from the control unit 41 to the outside wirelessly or by wire. For example, the communication unit 45 transmits information to the external terminal 90 . In other words, the control unit 41 transmits information to the external terminal 90 via the communication unit 45 via a network such as the Internet, a LAN (Local Area Network), or a wireless or wired cable, and transmits the information to the external terminal 90. display.

The terminal section 48 has a plurality of terminals for receiving a start signal for the pump unit 12 from the fire determination device 301 . As described above, the fire determination device 301 is electrically connected to the control panel 18 via the signal line 99, for example. are electrically connected to one terminal. In this embodiment, the terminal section 48 has a plurality of terminals for identifying the activation signal of the pump unit 12 by the fire determination device 301 .

Note that, for example, the function of displaying information on the external terminal 90 is achieved by processing by the processor of the external terminal 90 . The external terminal 90 is, for example, a display unit that displays information about abnormal pressure rise and the like. Here, the external terminal 90 includes, for example, a first external terminal 91 owned by the user at a location away from the pump device 1, and an administrator other than the user, such as a manufacturer of the pump device 1 and a building manager. and a second external terminal 92 possessed by an administrator who supervises or manages the pump device 1 and the fire extinguishing equipment 100 of an external organization such as a fire station or a disaster prevention center. Conventionally, communication was performed to the management center or the like by wire through the terminal section 48 . In this case, for example, two different terminals are non-voltage a-contacts, and an overcurrent is notified when the contacts are turned ON. It was necessary to provide as many terminals as the number of desired events.

In addition, the control unit 41 has the following functions (1) to (3).

(1) A function of judging overcurrent of the motor 22 .

(2) a function to protect the motor 22 when overcurrent of the motor 22 occurs;

(3) A function of energizing the motor 22 when the motor 22 is overcurrent.

Next, functions (1) to (3) of the control unit 41 will be described.
The function (1) is a function of comparing the detected current value when the motor 22 is energized with a threshold value, and determining whether or not an overcurrent is occurring in the motor 22 .

A specific example of the function (1) will be described below. As a specific example of the function (1), first, the control unit 41 detects the current value when the motor 22 is energized. Then, the control unit 41 compares the detected current value with a plurality of threshold values stored in the storage unit 43 . If the detected current value is equal to or greater than the first threshold, which is the smallest among the plurality of thresholds, the controller 41 determines that the motor 22 is overcurrent. Also, the control unit 41 compares with each of a plurality of thresholds and determines whether or not the detected current value is equal to or higher than each threshold. The control unit 41 also controls the notification unit 44 to warn the surroundings of the overcurrent information by sound, light, or information display. Furthermore, the control unit 41 transmits the information on the overcurrent to the first external terminal 91 and the second external terminal 92 to warn the outside.

The information about the overcurrent includes, for example, the identification number, type and position information of the pump device 1 stored in the storage unit 43, the date and time when the overcurrent was detected, and the content of the warning. The content of the warning is, for example, content corresponding to a plurality of thresholds. This is the state of the pump 21 and the motor 22 that are assumed to be In addition, among the overcurrent information to be transmitted to the external terminal 90, the warning content is the warning content corresponding to the highest threshold among a plurality of thresholds exceeded by the current value of the overcurrent. As a specific example, the contents of the warning when the detected current value is equal to or greater than the second threshold include, for example, the detected current value, information that the current exceeds the second threshold, and the pump 21 completely The content allows the user and administrator to confirm the state of the pump unit 12, such as that it is assumed to be fixed.

The function (2) is for the case where it is determined in the function (1) that an overcurrent that may damage the motor 22 is generated, and the fire determination device 301 starts the pump unit 12. This function protects the motor 22 when no signal is issued. Here, the damage is, for example, burning caused by overcurrent continuously occurring in the motor 22 .

A specific example of the function (2) will be described below. As a specific example of the function (2), first, the control unit 41 checks the overcurrent of the motor 22 when determining that the motor 22 is overcurrent in the function (1). For example, the control unit 41 determines whether the current value of the overcurrent generated in the motor 22 is a current value that may damage the motor 22 and requires protection of the motor 22 . In the present embodiment, the current value that requires protection of the motor 22 is the case where the current value determined as overcurrent is equal to or greater than the second threshold value, except for the case where the threshold value is lower than the second threshold value. will be used to explain.

For example, the control unit 41 determines whether the overcurrent of the motor 22 determined by the function (1) is less than the second threshold. When the current value of the overcurrent of the motor 22 is less than the second threshold and when the fire determination device 301 does not issue a start signal for the pump unit 12, the control unit 41 continues to supply power to the motor 22 assuming that there is no risk of damage to the motor 22 . From the next time onwards, when there is a command to operate the pump unit 12, the motor 22 is energized and the pump unit 12 is operated. Here, the command to energize the motor 22 includes, for example, both a manual command and an automatic command by a program, etc., and is a command for operating the pump unit 12 such as periodic inspection and maintenance operation.

When the current value of the overcurrent of the motor 22 is equal to or greater than the second threshold and when the fire determination device 301 does not issue a start signal for the pump unit 12, the control unit 41 controls the motor 22 to , the power supply to the motor 22 is stopped. From the next time onwards, unless the overcurrent is resolved, the motor 22 will be Do not energize the

The function (3) is used when it is determined that a fire has occurred, even when the function (1) determines that there is an overcurrent in the motor 22 that may damage the motor 22. This is a function of energizing the motor 22 .

A specific example of the function (3) will be described below. As a specific example of the function (3), first, when the control unit 41 determines that an overcurrent that may damage the motor 22 is occurring in the function (1), the fire is determined. When the pump unit 12 activation signal issued by the device 301 is received, the motor 22 continues to be energized regardless of the overcurrent level.

Furthermore, when overcurrent occurs in the motor 22 and the detected current value is equal to or greater than the second threshold, the control unit 41 determines that the rotating body of the pump 21 is stuck. Then, energization and de-energization of the motor 22 are repeatedly performed as the sticking release operation. For example, the current value of the motor 22 becomes lower than the second threshold value, or the current value of the motor 22 becomes lower than the second threshold value, or the motor 22 in the operation that eliminates the fixation of the pump 21 pre-stored in the storage unit 43 is turned on and off. The number of times of energization and stoppage of the motor 22 is repeated until the number of times of energization and stoppage is exceeded, and the number of times of energization and stoppage of the motor 22 in the operation for eliminating the fixation of the pump 21 that is lower than the second threshold value or that is stored in advance in the storage unit 43 is determined. If it exceeds, the controller 41 continues to energize the motor 22 .

According to the pump device 1 used in the fire extinguishing equipment 100 configured in this way, the current value when the control unit 41 energizes the motor 22 and the current value generated in the motor 22 in the event of an abnormality stored in the storage unit 43 are By comparing with the threshold value, it can be determined whether or not the motor 22 is abnormal. In addition, when the control unit 41 determines that the motor 22 is abnormal and there is a risk that the motor 22 may be damaged by energizing the motor 22, in other words, the current value is equal to or greater than the second threshold value. When the current value of the threshold of 1 flows through the motor 22, operation such as inspection operation and maintenance operation is not performed. As a result, it is possible to prevent the motor 22 from being damaged or the motor 22 from catching fire due to overcurrent flowing through the motor 22, which may cause damage.

In addition, when the fire determination device 301 issues a start signal for the pump unit 12 , that is, in the event of a fire, the control unit 41 controls the water discharge means 201 even if an overcurrent flows to the motor 22 . priority to supply As described above, the pump device 1 can normally give priority to protecting the motor 22 and preventing disasters caused by overcurrent, and can give priority to extinguishing a fire rather than protecting the motor 22 in the event of a fire.

Further, when the current value generated in the motor 22 is overcurrent, the control unit 41 can issue a warning of overcurrent information via the notification unit 44 and the external terminal 90 . Therefore, for example, it is possible to warn a user or an administrator that an overcurrent is occurring and, depending on the situation of the overcurrent, provide maintenance or repair information. That is, since it is possible to notify the outside of the abnormal state and its details, the pump device 1 prevents the pump unit 12 from being driven in the event of a fire due to the fixation of the rotor of the pump 21, and prevents the rotor of the pump 21 from being driven. It is possible to prevent the motor 22 from being damaged due to the energization of the motor 22 during fixation.

In addition, for example, when there is no risk of damage to the motor 22 or when the overcurrent is small, for example, when the overcurrent is about the first threshold value, the control unit 41 issues a warning to the outside while enabling operation. Therefore, by setting recommended times for replacement and maintenance of the motor 22 and pump 21 as information corresponding to the detected current value and the first threshold value, it is possible to facilitate management of maintenance and the like by users and administrators. can.

Furthermore, the second threshold, which is the highest value among the plurality of thresholds stored in the storage unit 43, cannot be changed by the user. By adopting this configuration, when the rotating body of the pump 21 is fixed, an overcurrent is generated in the motor 22 by energizing the motor 22, causing problems such as damage to the motor 22 and failure to operate the pump unit 12 in the event of a fire. It is possible to prevent the user from setting an incorrect threshold value.

In addition, when the detected current value at the time of overcurrent is equal to or greater than the second threshold, the control unit 41 determines that the pump 21 is stuck, and conducts energization and energization of the motor 22 as the fixation elimination operation of the pump 21. stop repeatedly. As a result, even if the pump 21 is fixed and a fire occurs, the fixation of the pump 21 is automatically eliminated as much as possible, and the possibility of supplying water to the secondary side of the pump unit 12 is improved. can be made

As described above, according to the pump device 1 according to the embodiment of the present invention, when it is determined that an overcurrent that may damage the motor 22 is generated, the motor 22 is energized only in the event of a fire. By doing so, it is possible to prevent damage to the motor 22 and to prioritize the driving of the pump 21 in the event of a fire.

(Other embodiments)
Next, a pump device 1 according to another embodiment of the invention will be described below. In addition to the functions (1) to (3) possessed by the control unit 41 of the pump device 1 according to another embodiment, the pump device 1 according to another embodiment further has the following functions (4) to (6). ).

Specifically, the storage unit 43 further stores, as thresholds, a predetermined time period until an inspection operation, which is a specific operation, and a value for evaluating the pump unit 12 during the inspection operation. Here, the inspection operation is a periodical inspection of the pump unit 12 that involves stopping the driving of the pump unit 12 . For example, a plurality of inspection operations of the pump unit are set. Therefore, a plurality of thresholds, which are predetermined times until a plurality of inspection operations are performed, are stored in the storage unit 43 .

As a specific example, the inspection operation includes a first inspection operation and a second inspection operation. The first inspection operation is, for example, an inspection performed manually. The first inspection operation is, for example, a legal inspection required for a fire pump device. The first inspection operation is required to be performed, for example, when a predetermined time has passed since the previous first inspection operation. In other words, it is a statutory inspection in which the number of inspections to be performed for each predetermined period of time, such as once a year, is specified. Alternatively, it is determined that the first inspection operation is performed, for example, when the integrated value of the time during which the control panel 18 is energized has passed a predetermined time since the previous first inspection operation. For example, the first inspection operation is performed each time the user operates the input device 42 to input a command for the first inspection operation. For example, in the first inspection operation, the pump unit 12 is driven for a predetermined time, the shutoff head during shutoff operation, the voltage and current supplied to the motor 22 during shutoff operation, the rated lift during rated load operation, and the rated The voltage and current supplied to the motor 22 during load operation are detected. During the first inspection operation, for example, during rated load operation, the automatic on-off valve 15 is opened to drain water through the drain pipe 15a. Note that the automatic on-off valve 15 may be opened to drain water before and after the shut-off operation of the first inspection operation is started.

The second inspection operation is an inspection performed manually or automatically, such as a self-inspection or a maintenance operation. The second inspection operation is, for example, the stop time of the pump unit 12 from the previous second inspection operation, more specifically, the accumulated time of the time when the motor 22 is not energized from the previous second inspection operation. It is required that it is performed manually before the time elapses, or automatically when the accumulated time elapses for a predetermined time. For example, the second inspection operation is performed by the user operating the input device 42 to drive the pump unit 12 or by the controller 41 driving the pump unit 12 . For example, the second inspection operation is an operation for detecting the shut-off lift during shut-off operation and the voltage and current supplied to the motor 22 during shut-off operation. It should be noted that the automatic on-off valve 15 may be opened to drain the water before and after the shut-off operation of the second inspection operation is started.

Moreover, the plurality of thresholds, which are predetermined times until the plurality of inspection operations are performed, include a third threshold, a fourth threshold, and a fifth threshold. The third threshold is set as the time of the pump unit 12 from after the previous first inspection operation to when the next first inspection operation is performed. The fourth threshold value is set as the time of the pump unit 12 from after the previous second inspection operation to when the next second inspection operation is performed.

The fifth threshold is set as a normal value of the detected value detected in each inspection operation. For example, the fifth threshold is the shut-off head during shut-off operation when the pump unit 12 is normal, the voltage and current supplied to the motor 22 during shut-off operation, the rated head during rated load operation, and the voltage and current supplied to the motor 22;

Further, the storage unit 43 stores, for example, one of the plurality of thresholds as non-rewritable. For example, after the third threshold value is stored by the manufacturer that manufactured the pump device 1, the storage unit 43 is set to be rewritable, and the fourth threshold value is set to be rewritable to the value input by the input device 42. be done. The settings for rewriting the third threshold value and the fourth threshold value in the storage unit 43 are set by the control unit 41 processing a program or the like stored in the storage unit 43, for example.

The storage unit 43 stores, for example, a control program for the pump unit 12 in each inspection operation. Further, the storage unit 43 stores information and results of each inspection operation, information of an external terminal 90 that transmits an inspection operation warning, and the like.

The control unit 41 also has the following functions (4) to (6).

(4) A function of performing the first inspection operation of the pump unit 12 and transmitting the status of the first inspection operation to the outside.

(5) A function of performing a second inspection operation of the pump unit 12 and transmitting the status of the second inspection operation to the outside.

(6) A function to warn of inspection operation.

Next, functions (4) to (6) of the control unit 41 will be described.
The function (4) performs the first inspection operation of the pump unit 12 for a predetermined time when a command to perform the first inspection operation is input by the input device 42, and the detection value detected by the operation of the pump unit 12 and the fifth threshold to determine whether the pump unit 12 is normal. The function (4) is a function of transmitting information on the first inspection operation and the status of the first inspection operation such as the result of the first inspection operation to the external terminal 90 .

A specific example of the function (4) will be described below. As a specific example of the function (4), first, the control unit 41 determines whether or not a command to perform the first inspection operation has been input from the input device 42 . Then, when it is determined that the command to perform the first inspection operation is input by the input device 42, the control unit 41 performs the shut-off operation and the rated load operation based on the control program for the pump unit 12 stored in the storage unit 43. to operate the pump unit 12 for a predetermined time.

Then, the control unit 41 detects the shutoff lift (pressure) detected by the pressure detector 13b during shutoff operation, the voltage and current supplied to the motor 22 during shutoff operation, and the pressure detector 13b during rated load operation. It detects the rated lift and the voltage and current supplied to the motor 22 during rated load operation. Then, the control unit 41 compares the fifth threshold value with each detected value to determine whether the detected value is a normal value. In this case, the energization to the motor 22 is stopped.

The control unit 41 stores information and results of the first inspection operation in the storage unit 43 . The information of the first inspection operation includes, for example, the date and time when the first inspection operation was performed detected by the calendar function and the clock function, and the count from the time when the first inspection operation was performed last time until the first inspection operation was performed by the counter function. and the number of days that have passed since the last time the first inspection operation was performed. Further, the results of the first inspection operation are the detected values of pressure, voltage, current, etc. detected during the first inspection operation, and the result of judgment as to whether or not the detected values are normal values.

The control unit 41 transmits the information on the first inspection operation and the result of the first inspection operation to the external terminal 90 via the communication unit 45 . As a specific example, the control unit 41 transmits the information of the first inspection operation and the result of the first inspection operation to the first external terminal 91 and the second external terminal 92 .

In addition, when performing or after performing the first inspection operation, the control unit 41 counts the time elapsed from the previous first inspection operation counted by the counter function from the time when the first inspection operation was performed last time until the first inspection operation is performed. reset the elapsed time.

The function (5) is when a command to perform the second inspection operation is input by the input device 42 or when the integrated value of the stop time of the pump unit 12 counted by the counter function exceeds the fourth threshold. The second inspection operation of the pump unit 12 is performed for a predetermined time, and it is determined whether or not the pump unit 12 is normal based on the detection value and the fifth threshold value detected by the operation of the pump unit 12, and there is a risk of equipment damage. This is a function of stopping the energization of the motor 22 when a certain value, for example, the current, is not normal. Also, the function (5) is a function of transmitting to the external terminal 90 the information on the second inspection operation and the status of the first inspection operation such as the result of the second inspection operation.

A specific example of the function (5) will be described below. As a specific example of the function (5), first, the control unit 41 determines whether or not a command to perform the second inspection operation has been input from the input device 42 . When a command to perform the second inspection operation is input by the input device 42, the control unit 41 performs the shut-off operation based on the control program for the pump unit 12 stored in the storage unit 43 to operate the pump unit 12 for a predetermined period of time. drive.

Further, when it is determined that the command to perform the second inspection operation is not input by the input device 42, the integrated value of the stop time of the pump unit 12 counted by the counter function after the previous second inspection operation is the fourth threshold value. to determine whether or not the When it is determined that the integrated value of the stop time of the pump unit 12 counted by the counter function after the previous second inspection operation exceeds the fourth threshold value, the control unit 41 changes the number of times of the pump unit 12 stored in the storage unit 43. Based on the control program, the pump unit 12 is operated for a predetermined period of time by shut-off operation.

The control unit 41 detects the shut-off lift (pressure) detected by the pressure detector 13b during shut-off operation, and the voltage and current supplied to the motor 22 during shut-off operation. Then, the control unit 41 compares the fifth threshold value with each detected value and determines whether the detected value is normal.

The control unit 41 stores information and results of the second inspection operation in the storage unit 43 . The information of the second inspection operation includes, for example, the date and time when the second inspection operation was performed detected by the calendar function and the clock function, and the count from the time when the second inspection operation was performed last time until the second inspection operation was performed by the counter function. and the number of days elapsed since the last time the second inspection operation was performed. Further, the result of the second inspection operation includes each detected value of pressure, voltage, current, etc. detected during the second inspection operation, and the result of judgment as to whether the detected value is a normal value.

The control unit 41 transmits the information on the second inspection operation and the result of the second inspection operation to the external terminal 90 via the communication unit 45 . As a specific example, the control unit 41 transmits the information of the second inspection operation and the result of the second inspection operation to the first external terminal 91 .

In addition, when performing or after performing the second inspection operation, the control unit 41 resets the integrated value of the stop time counted by the counter function from the time when the second inspection operation was performed last time until the second inspection operation is performed. .

The function (6) is a function of issuing a warning regarding inspection operation, and more specifically, a function of notifying the outside of information prompting inspection operation when inspection operation has not been performed for a predetermined period of time.

A specific example of the function (6) will be described below. As the function of (6), first, the control unit 41 performs a manually performed inspection operation, as a specific example, at least the first inspection operation of the previous first inspection operation in which a third threshold value that cannot be changed by the user is set. At least one of the elapsed time counted by the counter function after the pump unit 12 is stopped, and the remaining time until the first inspection operation is performed, which is calculated from the integrated value and the third threshold value, and preferably both Ask for Then, the control unit 41 displays on the notification unit 44 information on at least one of the elapsed time and the remaining time until the first inspection operation is performed, preferably both information.

Further, the control unit 41 determines whether or not the elapsed time counted by the counter function since the previous first inspection operation has exceeded the third threshold value. When the elapsed time counted by the counter function since the last time the first inspection operation was performed exceeds the third threshold value, the control unit 41 determines that the first inspection operation is necessary. The control unit 41 issues a warning by displaying a warning to the effect that the first inspection operation is to be performed by the reporting unit 44 .

In addition, the control unit 41 sends a warning to the effect that the first inspection operation will be performed and the identification number, type, and position information of the pump device 1 stored in the storage unit 43 to at least the second external terminal 92, preferably to the second external terminal 92. The information is transmitted to the first external terminal 91 and the second external terminal 92 . That is, the control unit 41 transmits to the user and administrator a warning to the effect that the first inspection operation needs to be performed, and information on the pump device 1 for which the first inspection operation is to be performed.

Note that the destination of the warning to which the control unit 41 issues a warning is transmitted based on the information of the external terminal 90 stored in advance in the storage unit 43 . Some of the warning destinations to which the control unit 41 issues a warning are set to be unrewritable by the user. In this embodiment, at least the administrator's second external terminal 92 is set as the warning destination so that the user cannot rewrite it.

According to the pump device 1 configured in this way, the functions (4) to (6) further enable the notification unit 44 or the external terminal 90 to indicate that the integrated value of the stop time of the pump unit 12 after the inspection operation exceeds the threshold. When it exceeds, the control unit 41 displays a warning, so that inspection driving can be urged.

Specifically explaining this effect, the pump device 1 integrates the elapsed time from when the first manually performed check function is performed until when the next first check function is performed. Then, when the accumulated elapsed time of the pump unit 12 exceeds the third threshold, the accumulated elapsed time is transferred to the first external terminal 91 of the user and the second external terminal 92 of the administrator such as the manufacturer or the management organization. Send information that exceeds the threshold. As a result, it is possible to warn users, manufacturers, and administrators such as management organizations that the first inspection operation has not been performed even after a predetermined period of time has passed, and that the first inspection operation is required. That is, the user and administrator can grasp whether or not the first check function is performed. In particular, since the first inspection operation is an inspection operation that is performed manually, there is a risk of forgetting to perform the inspection operation. A person can instruct the observance of inspection driving.

In addition, when the first inspection operation is an obligatory operation such as a legal inspection operation, the implementation can be notified to the user, and the administrator can manage or monitor the user. can encourage In particular, when the pump device 1 is a fire pump device, it is possible to prevent the pump device 1 from becoming stuck due to rust, scale, or the like due to a long stoppage and being unable to start the pump device 1 in the event of a fire. Moreover, since it is possible to prevent the pump device 1 from being unable to start, it is possible to prevent overcurrent from flowing to the motor 22 .

In addition, since the control unit 41 transmits information and results of the first inspection operation and the second inspection operation to the user and the administrator, the user and the administrator can grasp the inspection status.

Further, the controller 41 receives a command to perform the second inspection operation from the input device 42, or the integrated value of the stop time of the pump unit 12 counted by the counter function after the previous second inspection operation reaches the fourth level. If the threshold value is exceeded, the second inspection operation is performed. In particular, even if a command to perform the second inspection operation is not input by the input device 42, when the integrated value of the stop time of the pump unit 12 counted by the counter function after the previous second inspection operation exceeds the fourth threshold value. By performing the second inspection operation, the pump device 1 is operated in a shorter period than the first inspection operation such as legal inspection. As a result, adhesion of rust, scale, and the like to the inside of the pump 21 can be suppressed as much as possible, so that the service life of the pump unit 12 can be extended, and failure of the pump device 1 in the event of a fire can be suppressed as much as possible.

Furthermore, when inspection operations such as the first inspection operation and the second inspection operation are performed, the control unit 41 resets the accumulated value of the elapsed time after the previous inspection operation or the stopped time of the pump unit 12. You can prevent forgetting to reset the value.

As described above, according to the pump device 1 according to another embodiment of the present invention, in addition to the effects of the pump device 1 according to one embodiment described above, it is possible to prompt inspection operation.

It should be noted that the present invention is not limited to the two embodiments described above. For example, in the above-described example, when the detected current value is equal to or greater than the second threshold value and the start signal for the pump unit 12 is issued from the fire determination device 301, the motor 22 is energized and the energization is stopped. Although an example of repeating is described, the present invention is not limited to this. For example, when the detected current value is equal to or greater than the second threshold, and when the start signal for the pump unit 12 is not issued from the fire determination device 301, the pump 21 is fixed. Alternatively, the motor 22 may be energized and energized repeatedly. In the case of such a configuration, the pump 21 is operated to eliminate the sticking, and the current value of the motor 22 is detected. When the number of energization and stopping of the motor 22 in the operation for removing the fixation of the pump 21 is exceeded, the operation for removing the fixation of the pump 21 may be stopped. By setting the number of times the motor 22 is energized and stopped, it is possible to prevent the motor 22 from being damaged by an overcurrent that occurs when energized in a stuck state.

In the above example, the pump device 1 has a calendar function, a clock function, and a counter function, but the present invention is not limited to this. For example, the calendar function increases the power consumption of the battery and increases the cost of the pump device 1, so the pump device 1 may be configured without the calendar function. In the case of such a pump device 1, the above-mentioned overcurrent information, inspection operation information and results, etc. do not include the number of elapsed days, inspection dates, etc., but the elapsed time obtained by the clock function and the counter function. Only time information such as time and stop time may be used. Similarly, a configuration may be adopted in which only the integrated value of the stopped time of the pump unit 12 is obtained by the counter function without the clock function. Furthermore, it does not have a clock function and a counter function, but only a calendar function is provided, and the number of days of stoppage is accumulated instead of the stoppage time. It is good also as information only on a date.

Further, in the above-described example, a configuration in which the sprinkler 211 is provided as the fire extinguishing equipment 100 has been described. It may be of open type. For example, when an open sprinkler head 211b is used, an on-off valve is provided in the sprinkler 211, and the first inspection operation and the second inspection operation are manually performed, and the on-off valve is closed when the inspection operation is performed. do it. Also, the fire extinguishing equipment 100 may be configured to use foam fire extinguishing equipment or water spray fire extinguishing equipment instead of the sprinkler 211 .

Further, in the above example, the automatic on-off valve 15 is provided, and by opening and closing it is possible to drain water to the drain port 15b. Opening and closing may be performed by increasing or decreasing the degree of opening.

Also, in the above example, the configuration is described in which the elapsed time for the periodic inspection, which is the first inspection operation, is obtained by counting the elapsed time using the counter function, but the method of counting the elapsed time can be set as appropriate. For example, the elapsed time may be estimated by the integrated value of the energization time to the control unit 41 if the periodical inspection can be reliably performed within the period stipulated by law, and the number of days can be counted by the calendar function. There may be.

In addition to the above example, the current value at the time of closing is stored in advance in the storage unit 43, and when the rotating body of the pump 21 is stuck, the detected current value of the motor 22 is stored in the storage unit 43. A function may be provided to determine that the pump 21 is stuck when the current value is greater than the current value stored in 43 . Further, for example, as a function to determine a problem such as sticking of the pump 21, the automatic on-off valve 15 is operated in an open state, the automatic on-off valve 15 is gradually closed, and the pressure is detected with the automatic on-off valve 15 closed. However, if the detected pressure is lower than the shut-off pressure stored in the storage unit 43 in advance, it may be determined that the pump 21 is stuck. That is, if the automatic on-off valve 15 is closed, the pressure on the secondary side of the pump unit 12 increases as the pump 21 is driven, so whether or not the pump 21 is driven can be confirmed.

Also, in the example described above, an example in which the third threshold value stored in the storage unit 43 is set to be unrewritable has been described, but the present invention is not limited to this. For example, the fourth threshold set as the time of the pump unit 12 from after the previous second inspection operation until the next second inspection operation is performed, for example, the second inspection operation that the manufacturer considers necessary in a predetermined period. It may be set as the number of times and stored in advance in the storage unit 43 so as not to be rewritten.

In the above example, the water flow detector 314 is provided on the pipe 501, but the water flow detector 314 may be provided on the secondary side of the pump unit 12, and may be provided on the pump device 1. .

In the above-described example, the water flow detector 314 activates a switch provided inside the water flow detector 314 when water flows at a predetermined flow rate or flow rate, and issues an activation signal for the pump unit 12 to the control panel 18. Examples have been given, but are not limited to. For example, a configuration in which a predetermined flow rate or flow velocity is detected by differential pressure or the like, a flow rate value signal is sent to the control panel 18, and the pump unit 12 is started when the flow rate exceeds a threshold value stored in advance in the storage unit 43. It can be.

Further, in the above example, an example of storing a plurality of thresholds of current values has been described. good too. As a result, the degree of overcurrent becomes clear, and countermeasures can be taken before the motor 22 is damaged.

Further, in the above-described example, when the start signal for the pump unit 12 is issued from the fire determination device 301, priority is given to supplying water to the water discharge means 201 even when an overcurrent flows to the motor 22. Although an example has been shown, the motor 22 may be protected from overcurrent for the fire determination device 301 that is likely to send an activation signal even when no fire has occurred. For example, the fire determination devices 301 are divided into those that are likely to send an activation signal when no fire occurs and those which are unlikely to send an activation signal when no fire occurs. A start signal for the pump unit 12 is sent to the control panel 18 from the fire determination device 301, which is unlikely to send a start signal if no fire has occurred. It is also possible to adopt a configuration in which protection is performed and the controller 41 issues a warning to the outside. Further, for example, the activation signal from the fire determination device 301 is either the pressure detector 33 only, the water flow detector 314 only, or both the pressure detector 33 and the water flow detector 314, and the overcurrent is the motor 22, the power supply to the motor 22 is stopped to protect the motor 22, and the controller 41 may issue a warning to the outside. As a result, it is possible to prevent damage to motors and control panels due to overcurrent, as well as fires due to overcurrent, even when the possibility of fire is low. It is possible to call people's attention.

Further, in the above example, the configuration for performing overcurrent protection against activation of the pump unit 12 by the activation signal of the fire determination device 301, which is likely to send the activation signal even when there is no fire, was described. By warning whether the pump unit 12 has been activated by the activation signal from the device 301, it can be used to identify the cause of the issuance of the activation signal when there is no fire. In the above example, the pressure detector 33 and the water flow detector 314 are connected to the control panel 18 via the signal line 99. For example, each signal line 99 is connected to a different terminal section 48, and from which terminal By storing in the storage unit 43 whether the pump unit 12 is activated by the activation signal of , the activation signals of the pressure detector 33 and the water flow detector 314 can be identified, and the source of the activation signal can be specified. For example, when the pressure detector 33 or the water flow detector 314 transmits the activation signal by wireless communication, the source of the activation signal can be identified by adding the identification information of the pressure detector 33 or the water flow detector 314 to the activation signal. can be specified.

Further, in the above example, the configuration for performing overcurrent protection against activation of the pump unit 12 by the activation signal of the fire determination device 301, which is highly likely to send the activation signal even when there is no fire, has been described. It is also possible to combine an anti-sticking operation in which the energization and stop of the are repeated. For example, energizing and stopping the energization of the motor 22 causes the current value of the motor 22 to become lower than a threshold value pre-stored in the storage unit 43, or eliminates the fixation of the pump 21 pre-stored in the storage unit 43. The control unit 41 continues to energize the motor 22 when the current value of the motor 22 becomes lower than the threshold value, and the previously stored energization and If the current value of the motor 22 does not become lower than the threshold value even after the number of stops is exceeded, the power supply to the motor 22 is stopped. As a result, overcurrent can be eliminated as much as possible and the pump unit 12 can be activated even for the activation signal of the fire determination device 301, which is highly likely to send the activation signal even when there is no fire. Further, the control unit 41 warns to the outside whether or not the overcurrent has been resolved by energizing and stopping, so that it can be notified to the outside whether or not the sticking or the like has been resolved. It can be used to identify the cause.

In the above example, the pressure detector 33 is provided in the pump device 1, but it may be provided on the secondary side of the pump unit 12 and on the secondary side of the check valve 13a. The configuration may be such that they are provided. When the pressure detector 33 is provided in the pressure tank 14, the pressure detector 33 is less susceptible to the influence of running water, so that more stable and highly accurate pressure detection is possible.

In the above example, one pressure detector 33 is provided, but a plurality of pressure detectors 33 may be provided in parallel in the tank 31 . For example, as shown in FIG. 5, a configuration may be adopted in which a pressure detector 34 is attached to the tank 31 via a pipe different from that for the pressure detector 33 . This makes it possible to determine whether or not the pressure detector 33 has issued an alarm due to clogging due to foreign matter such as sand. For example, when a pressure drop is detected only from the pressure detector 33 and a start signal for the pump unit 12 is sent to the control panel 18, it is determined that clogging has occurred and the motor 22 is not energized and pressure is detected. It may be configured such that when a start signal for the pump unit 12 is sent from the device 33 and the pressure detector 34 to the control panel 18, it is determined that a fire has occurred and the motor 22 is energized. As a result, activation of the pump unit 12 by the fire determination device 301 can be avoided except when there is a fire. Furthermore, by issuing a warning to the outside of the information that the motor 22 has not been energized, it is possible to quickly discover a failure of the pressure detector 33 or the pressure detector 34 due to clogging or the like.

In addition, in the above example, a configuration having a current threshold is described, but by further providing a plurality of pressure thresholds, when there is no fire, the "fire determination device 301 issues a start signal for the pump unit 12 to the control panel 18". It is possible to suppress as much as possible the transmission of "information received" to the disaster prevention center, etc. For example, a configuration may be adopted in which an activation signal is issued when the pressure falls below the lowest pressure threshold, and a warning is issued without issuing an activation signal when the pressure falls below the other thresholds. As a result, it is possible to warn users and administrators of gradual pressure drops due to pipe leakage or clogging with foreign matter, and confirm and respond to abnormalities before the start signal of the pump unit 12 is sent to the control panel 18 due to the pressure drop. can do. In addition, when a plurality of threshold values and the pressure detected by the pressure detector 33 match is stored in the storage unit 43, and displayed on the control panel 18 or by issuing a warning to the outside, the user or administrator can keep track of the history. Users and administrators can refer to this information, and can use the tendency of pressure drop to understand the degree of water leakage and identify the cause.

In addition, in the above-described example, an example is shown in which "information indicating that the start signal for the pump unit 12 has been issued to the control panel 18 by the fire determination device 301" is transmitted via the terminal section 48, but the present invention is not limited to this. . For example, by transmitting the above-described information via the communication unit 45, it is possible to convey a more detailed situation and reduce the number of terminals to be used.

Also, in the above example, the configuration including the auxiliary pressurizing device 101 has been described, but the present invention is not limited to this. In the absence of the auxiliary pressurizing device 101, when the pressure drops due to water leakage from the pipe or air in the tank, the pressure detector 33 serves as a fire judgment device 301 and sends a start signal to the control panel 18 to start the pump unit 12. There is a risk that the pump unit 12 will be started even though there is no fire. In this case, since the pump unit 12 is activated by the activation signal of the fire determination device 301, it was necessary to manually stop the pump unit 12. In order to avoid this, a plurality of pressure threshold values are further stored in the control panel 18, and when the pressure detected by the pressure detector 33 falls below a predetermined pressure threshold value, the motor 22 is energized to detect the pressure in the pipe. After the pressure rises, the power supply to the motor 22 may be automatically stopped when the pressure detected by the pressure detector 33 exceeds a threshold higher than a predetermined threshold. Here, the predetermined threshold value is set, for example, as the same value as the auxiliary starting pressure. Moreover, the threshold value higher than the predetermined threshold value is set, for example, as the same value as the auxiliary stop pressure. As a result, even without the auxiliary pressurizing device 101, it is possible to perform a pressure maintenance operation that prevents a decrease in pressure due to leakage of water from the pipes or penetration of air into the tank. Furthermore, when the pressure detector 33, which is one of the fire determination devices 301, issues a start signal for the pump unit 12 to the control panel 18, and the motor 22 is energized, the pressure maintenance operation is performed. is transmitted to the outside of the disaster prevention center or the like, or is not transmitted at all, it is possible to prevent the disaster prevention center or the like from erroneously recognizing it as a fire. In addition, by increasing the frequency of starting the pump unit 12, it is possible to reduce the occurrence of overcurrent due to sticking or the like. In addition, when the fact that the pressure maintenance operation has been performed is transmitted to the outside, the user or administrator can grasp the frequency of the pressure maintenance operation of the pump unit 12, and if the frequency is high, there is a high possibility of water leakage. etc., can be used to identify the cause of the defect. Furthermore, when the pressure is maintained and the pressure detected by the pressure detector 33 is equal to or higher than a predetermined threshold, it is determined that no fire has occurred. It is good also as a structure which stops the electricity supply to. As a result, it is possible to prevent the motor 22 from being damaged or ignited due to an overcurrent during the pressure maintenance operation. Note that the above-described predetermined threshold value of the pressure varies depending on the site where the pump device 1 is installed, and varies depending on the specification flow rate of the sprinkler and the fire hydrant. Therefore, the predetermined threshold value of the pressure can be determined for each site from the expected flow rate and the water pumping performance of the pump device 1 when fire fighting is performed.

Also, in the above example, an example in which the control panel 18 does not have the auxiliary pressurizing device 101 and further stores a plurality of pressure threshold values has been described, but the present invention is not limited to this. For example, a configuration may be used in which a threshold value for the duration of operation assumed to recover to the auxiliary stop pressure is stored. That is, when the pressure detected by the pressure detector 33 falls below a predetermined threshold value, the motor 22 is energized, and when the pressure maintenance operation continues for a time equal to or longer than the threshold value stored in advance in the storage unit 43, A configuration in which energization to the motor 22 is stopped may be employed. As a result, the pressure maintenance operation can be performed without the auxiliary pressurizing device 101 . Note that the predetermined threshold value is set, for example, as the same pressure as the auxiliary starting pressure. Further, for example, a timer may be electrically connected to the control unit 41 instead of the threshold value for the operation duration time, and the threshold value may be set by this timer.

In the above example, the control panel 18 does not include the auxiliary pressurizing device 101, and a plurality of pressure threshold values are further stored in the control panel 18 to perform the pressure maintenance operation. There is a risk of detecting running water. Therefore, the starting signal of the pressure detector 33 and the water flow detector 314 can be distinguished, and if the pressure detected by the pressure detector 33 during the pressure maintenance operation is equal to or higher than an arbitrary threshold, the water flow detector 314 It is also possible to adopt a configuration in which it is not judged as a fire even if is detected, and the activation signal from the running water detector 314 is not accepted.

As a result, not only water leakage but also erroneous detection by the water flow detector 314 due to inappropriate setting of the auxiliary pressure device 101 can be suppressed. Note that the above-described arbitrary threshold value of the pressure varies depending on the site where the pump device 1 is installed, and varies depending on the flow rate specifications of sprinklers and fire hydrants. Therefore, an arbitrary pressure threshold can be determined from the expected flow rate and the water pumping performance of the pump device 1 when fire fighting is performed.

In the above example, the control panel 18 does not have the auxiliary pressurizing device 101 and a plurality of pressure thresholds are further stored. However, if the pressure detected by the pressure detector 33 is below the lowest pressure threshold In this case, the power supply to the motor 22 may be continued, and the power supply to the motor 22 may not be automatically stopped even after the pressure in the pipe rises. That is, when the pressure detected by the pressure detector 33 is below the lowest pressure threshold, it is determined that a fire has occurred, and the pump unit 12 is not stopped even if the pressure inside the pipe increases. Furthermore, in the above example, the motor 22 is energized when the pressure detected by the pressure detector 33 is lower than the lowest pressure threshold and the highest pressure threshold. Since the pressure in the pipe increases, it cannot be determined that a fire has occurred when the pressure detected by the pressure detector 33 drops to the lowest pressure threshold. For this reason, for example, by using a timer to delay the energization of the motor for several tens of seconds, it is possible to determine whether the pressure in the pipe rapidly drops to the lowest pressure threshold, and to determine whether the pressure drop is due to a fire. can do. Furthermore, when the pressure detected by the pressure detector 33 is below the lowest pressure threshold, "information that the start signal of the pump unit 12 was issued to the control panel 18 by the fire determination device 301 due to a fire". The information may be transmitted to the outside such as a disaster prevention center, and the power supply to the motor 22 may be continued without stopping even if an overcurrent occurs. In addition, overcurrent protection is performed except for the lowest pressure threshold value detected by the pressure detector 33, and overcurrent protection is not performed at the lowest pressure threshold value detected by the pressure detector 33. When the pressure drops due to water leakage, etc., it recovers the pressure of the pipe while preventing overcurrent, and since the frequency of starting increases, it is possible to prevent sticking, etc., and in the event of a fire, it is possible to prioritize fire extinguishing activities over overcurrent protection. .

In the above example, the control panel 18 has the terminal section 48. However, the terminal section 48 has a plurality of terminals with different roles, and different terminals receive activation signals from different fire determination devices 301. Thus, the activation signal from the fire determination device 301 can be identified. For example, the fire determination devices 301 are divided into those that are likely to send an activation signal when no fire has occurred and those which are unlikely to send an activation signal when no fire has occurred. The terminal can be connected to the fire determination device 301 via the signal line 99 or the like. As a result, for example, the pressure detector 33, the running water detector 314, etc., for the activation of the pump unit 12 by the activation signal from the fire determination device 301 that is likely to send the activation signal when there is no fire can stop the energization of the motor 22 when an overcurrent occurs, thereby preventing the motor 22 from being damaged or ignited. In addition, regarding the activation of the pump unit 12 by the activation signal from the fire determination device 301, such as the fire hydrant manual activation device 312 and the remote activation device 313, which is unlikely to send the activation signal when there is no fire , even when overcurrent occurs, it is possible to continue energizing the motor 22 and perform fire extinguishing activities as much as possible.

In the above example, the current value for judging an overcurrent when the motor 22 is energized is stored in the storage unit 43 as a threshold. Also good. For example, by setting the time threshold longer than the time during which the starting current of the motor 22 is generated, it is possible to detect only the overcurrent due to sticking or the like without detecting the starting current.

Further, in the above example, the configuration of manually stopping the pump unit 12 after the pump unit 12 is activated by the activation signal from the fire determination device 301 has been described, but the present invention is not limited to this. For example, by sending a stop signal for the pump unit 12 to the control panel 18 from the outside such as a management center, the power supply to the motor 22 may be stopped and the start signal may be canceled. As a result, when it is determined that the start signal from the fire determination device 301 is not caused by a fire, the pump unit 12 can be stopped as soon as possible, preventing damage or ignition of the motor or control panel when an overcurrent or the like occurs. can be prevented. Further, the power supply to the motor 22 may be stopped by a stop signal from an external device such as a control center only when the motor or the control panel is damaged or may catch fire. As a result, unintended stoppage of the pump unit 12 due to erroneous transmission of a stop signal from the management center or the like can be reduced as much as possible. In addition, stopping the energization of the motor 22 by the stop signal from the outside such as the control center is limited to the case where the pump unit 12 is started by the start signal of the fire judgment device 301, which is highly likely to send the start signal even when there is no fire. You can As a result, it is possible to prevent the motor and the control panel from being damaged or ignited due to overcurrent when the possibility of fire occurrence is low.

Moreover, in the above-described example, the warning for the inspection operation is described as being configured to perform only the first inspection operation, but the present invention is not limited to this. For example, the second inspection operation is also configured to be performed manually, and when the integrated value of the stop time of the pump unit 12 after the second inspection operation exceeds the fourth threshold, the function (6) is used to control The unit 41 may be configured to warn at least the first external terminal 91 of the user, preferably the first external terminal 91 and the second external terminal 92, that the second inspection operation is required.

Further, in the above-described example, an example including the first inspection operation and the second inspection operation has been described as the inspection operation, but the inspection operation is not limited to this. The configuration may include driving. Moreover, the specific operation is not limited to the inspection operation, and the specific operation may of course include an automatic operation as long as there is at least one specific operation performed manually. For example, the inspection operation may further include a third inspection operation. As a specific example, the third inspection operation is an operation in which when a command to start inspection operation is transmitted from the external terminal 90 , the communication unit 45 receives the command and the control unit 41 drives the pump unit 12 .

Further, in the above-described example, the configuration for displaying or transmitting inspection operation information, results, and warnings to the notification unit 44 and the external terminal 90 has been described. There may be. That is, as long as the information about the inspection operation can be transmitted to the outside, the mode can be appropriately set.

Further, in the example described above, the configuration in which the cut-off operation is performed during the second inspection operation was shown, but the configuration is not limited to this. For example, as shown in FIG. 6, a flow rate detector 61 capable of detecting the flow rate may be provided in the branch pipe (drainage pipe) 15a to detect the flow rate of the branch pipe 15a. With such a configuration, the flow rate detector 61 detects the flow rate, and the automatic on-off valve 15 can be opened and closed so as to achieve a predetermined flow rate. The voltage and current supplied to the can be detected.

Further, in the above-described example, the fifth threshold is the shutoff head during shutoff operation when the pump unit 12 is normal, the voltage and current supplied to the motor 22 during shutoff operation, the rated head during rated load operation, and Although the voltage and current supplied to the motor 22 during rated load operation have been described, they are not limited to this. That is, the fifth threshold value is not limited to the cutoff operation and the rated load operation. For example, the fifth threshold may be the head when the pump unit 12 is normally operated at a predetermined flow rate, and the voltage and current supplied to the motor 22 when the pump unit 12 is normally operated at a predetermined flow rate.

Further, in the above-described example, it is determined whether or not the pump unit 12 is normal based on the fifth threshold, but a lower sixth threshold different from the fifth threshold may be further provided. In the case of such a configuration, for example, the fifth threshold is set to a value detected when the pump unit 12 is abnormal, and the sixth threshold is set to continue the inspection operation, but In other words, the current is set to a value that is closer to a normal operating condition than the fifth threshold, for example, to a value that is smaller than the fifth threshold. Then, when the detected detection value satisfies the fifth threshold value, the control unit 41 determines that the pump unit 12 is abnormal, not normal, and stops the pump unit 12 . In addition, the control unit 41 continues the inspection operation when the detected detection value does not satisfy the sixth threshold value, or when both the sixth threshold value and the fifth threshold value are not satisfied, and displays the results of the inspection operation and the like. The inspection operation status may be transmitted to the external terminal 90 . Further, when the sixth threshold is satisfied, information indicating that the sixth threshold has been exceeded and a warning may be displayed and transmitted to the notification unit 44 and the external terminal 90 . For example, the pressure detector 33 gradually increases the pressure when the detection unit or the primary side pipe of the detection unit is clogged with foreign matter such as sand, or when water is leaking from the secondary side pipe of the pump unit 12 . to a predetermined pressure or less, and there is a risk of sending a start signal for the pump unit 12 to the control panel 18 . For example, if water is leaking from the pipe on the secondary side of the pump unit 12 , the water flow detector 314 may detect the water flow and send an activation signal for the pump unit 12 to the control panel 18 . By providing the sixth threshold, it is possible to warn the user or administrator before an abnormality occurs in the pump unit 12 while continuing the inspection operation.

That is, the present invention is not limited to the above-described embodiments, and can be variously modified in the implementation stage without departing from the scope of the invention. Further, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Furthermore, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, if the problem can be solved and effects can be obtained, the configuration with the constituent elements deleted can be extracted as an invention.
The description equivalent to the invention described in the original claims of the present application is added below.
[1] A pump unit that has a motor and a pump and is connected to a pipe that is closed at the end or in the middle;
a storage unit that stores a threshold value for determining that the current value supplied to the motor is overcurrent;
A protection function that detects a current value applied to the motor, compares the detected current value with the threshold value, and stops energizing the motor when the detected current value exceeds the threshold value. and energizes the motor even if the detected current value is equal to or greater than the threshold value when a start signal for the pump unit is received from a fire determination device provided in the fire extinguishing equipment. a control unit;
A pumping device comprising:
[2] The pump device according to [1], wherein the storage unit includes a plurality of thresholds with different current values, and different warnings are given according to the plurality of thresholds.
[3] When the detected current value exceeds the predetermined threshold value, the control unit stops energizing the motor as the protection function, and the detected current value is less than the predetermined threshold value. and the energization of the motor is maintained when the threshold value, which is lower than the predetermined threshold value, is exceeded.
[4] When the control unit receives the activation signal from the fire determination device and the detected current value exceeds the threshold value, the control unit repeatedly energizes and stops the motor, thereby energizing the motor. The pump device according to [1], wherein the motor continues to be energized when the number of energizations and stops exceeds a predetermined number of times, or when the detected current value is below the threshold value.
[5] A plurality of fire judgment devices are provided and classified into at least two types,
The control unit activates the pump unit by the activation signal received from the fire determination device of a predetermined type among the plurality of fire determination devices classified into at least two types, and The pump device according to [1], wherein, when the detected current value exceeds the threshold value, energization to the motor is stopped and an external warning is issued.
[6] The pump device according to [5], wherein the warning includes information about the fire determination device that sent the activation signal.
[7] The storage unit further has the threshold values of a plurality of different pressures,
The control unit energizes the motor when the pressure detected by the pressure detector falls below the lowest threshold, and issues a warning to the outside without energizing the motor when the pressure is below the other thresholds. The pump device according to [1].
[8] When the control unit receives the activation signal from the fire determination device and the detected current value exceeds the threshold value, the control unit repeatedly energizes and stops the motor, The pump according to [5], which stops energizing the motor when the energization and stoppage of the motor exceeds a predetermined number of times, and continues energizing the motor when the detected current value is below the threshold value. Device.
[9] A plurality of pressure detectors are provided,
The control unit issues a warning to the outside without energizing the motor when the start signal is sent to the control unit only from some of the pressure detectors, and all of the pressure detectors output the The pump device according to [5], wherein the motor is energized when the start signal is sent to the control unit.
[10] further having a communication unit;
The pump device according to claim 7 or 9, wherein the control unit transmits to the outside information that the motor is not energized.
[11] further having a communication unit;
The pump device according to [1], wherein the control unit externally transmits information that the activation signal has been received from the fire determination device.
[12] The storage unit further has the threshold values of a plurality of different pressures,
The control unit energizes the motor when the pressure detected by the pressure detector provided in the fire extinguishing equipment is below the predetermined pressure threshold, and the detected pressure is higher than the predetermined threshold. The pump device according to [1], wherein the energization of the motor is stopped when the threshold value is exceeded.
[13] The storage unit further has a plurality of pressure thresholds,
The control unit energizes the motor when the pressure detected by the pressure detector provided in the fire extinguishing equipment falls below the predetermined threshold, and the state in which the pressure falls below the threshold is stored in advance. The pump according to [1], wherein energization to the motor is stopped when the time continues for a time equal to or longer than the time threshold stored in the unit, or when an electrically connected timer counts a preset time. Device.
[14] After activating the pump unit in response to the activation signal received from the pressure detector, the controller determines that the detected current value is equal to or greater than the threshold value and the detected pressure is a predetermined pressure. The pump device according to [12] or [13], which stops energizing the motor when the threshold value is exceeded.
[15] After activating the pump unit by the activation signal received from the pressure detector, when the controller receives the activation signal from the water flow detector provided in the fire extinguishing equipment, the detected pressure is greater than or equal to the threshold of a predetermined pressure, the pump device according to [12] or [13] does not accept the activation signal from the water flow detector.
[16] The control unit has a terminal unit having a plurality of terminals,
The pump device according to [1], wherein the fire determination devices are classified into at least two types, and the fire determination devices are connected to different terminals for each type.
[17] The control unit has at least one terminal unit or a communication unit,
[1], wherein the control unit energizes the motor when receiving the start signal from the fire determination device, and stops energizing the motor when receiving a stop signal from the outside; The described pumping device.
[18] When the detected current value exceeds the threshold value and a stop signal is received from the outside, the control unit stops energizing the motor, and the detected current value exceeds the threshold value. The pump device according to [17], wherein the motor continues to be energized when the threshold is not exceeded and a stop signal is received from the outside.
[19] A storage unit that stores a threshold value for determining that a current value supplied to the motor of a pump unit that has a motor and a pump and is connected to a pipe that is closed at the end or in the middle is overcurrent;
Protection for detecting a current value applied to the motor, comparing the detected current value with the threshold value, and stopping power supply to the motor when the detected current value is equal to or greater than the threshold value When a start signal for the pump unit is received from a fire determination device provided in a fire extinguishing system, the motor is energized even when the detected current value is equal to or greater than the threshold value. a control unit that performs
A control panel with
[20] A storage unit that stores a threshold value for determining that a current value supplied to the motor of a pump unit that has a motor and a pump and is connected to a pipe that is closed at the end or in the middle is overcurrent;
Protection for detecting a current value applied to the motor, comparing the detected current value with the threshold value, and stopping power supply to the motor when the detected current value is equal to or greater than the threshold value. When a start signal for the pump unit is received from a fire judgment device provided in a fire extinguishing system, the motor is energized even when the detected current value is equal to or greater than the threshold value. a control unit that performs
a substrate on which the storage unit and the control unit are mounted;
A control board comprising:

DESCRIPTION OF SYMBOLS 1... Pump apparatus, 11... Base, 12... Pump unit, 13... Discharge pipe, 13a... Check valve, 13b... Pressure detector, 14... Pressure tank, 15... Automatic opening/closing valve, 15a... Branch pipe (drainage pipe) , 15b... drainage port, 16... temperature detector, 17... priming tank, 17a... pipe, 17b... escape pipe, 18... control panel, 21... pump, 21a... suction port, 21b... discharge port, 22... motor, 31 ... tank, 32 ... pressure gauge, 33 ... pressure detector, 34 ... pressure detector, 41 ... control section, 42 ... input device, 43 ... storage section, 44 ... notification section, 45 ... communication section, 46 ... control board, 47... Housing, 48... Terminal portion, 90... External terminal, 91... First external terminal, 92... Second external terminal, 99... Signal line, 100... Fire extinguishing equipment, 101... Auxiliary pressure device, 111... Auxiliary pump Unit 112 Pressure tank 113 Pressure detector 114 Priming tank 115 Control panel 121 Auxiliary motor 122 Auxiliary pump 123 Connecting pipe 131 Storage unit 132 Control unit 201 Water discharge means 211 Sprinkler 211a Installation pipe 211b Sprinkler head 212 Fire hydrant 212a Fire hydrant box 212b Hose 212c Nozzle 213 Connecting water pipe 301 Fire determination device 311 Fire Alarm 312 Fire hydrant manual activation device 313 Remote activation device 314 Flowing water detector 315 Fire hydrant interlocking device 401 Water supply source 501 Piping.

Claims (20)

a pump unit having a motor and a pump and connected to a pipe that is closed at an end or in the middle;
a storage unit that stores a threshold value for determining that the current value supplied to the motor is overcurrent;
A protection function that detects a current value applied to the motor, compares the detected current value with the threshold value, and stops energizing the motor when the detected current value exceeds the threshold value. and energizes the motor even if the detected current value is equal to or greater than the threshold value when a start signal for the pump unit is received from a fire determination device provided in the fire extinguishing equipment. a control unit;
with
A plurality of the fire determination devices are provided and are classified into at least two or more types, and the control unit receives information from a predetermined type of fire determination device among the plurality of fire determination devices classified into at least two or more types. a pump device that stops energizing the motor and issues a warning to the outside when the pump unit is started by the start signal received and the detected current value exceeds the threshold value. 2. The pump device according to claim 1, wherein said storage unit includes a plurality of said thresholds with different current values, and different warnings are given according to said plurality of thresholds. The control unit stops energizing the motor as the protective function when the detected current value exceeds the predetermined threshold, and the detected current value is less than the predetermined threshold, and 3. The pump apparatus of claim 2, wherein energization of the motor is maintained when the threshold, which is lower than the predetermined threshold, is exceeded. When the control unit receives the activation signal from the fire determination device and the detected current value exceeds the threshold value, the control unit repeatedly energizes and stops the motor, thereby energizing and stopping the motor. exceeds a predetermined number of times or the detected current value is below the threshold value, the motor continues to be energized. 2. The pumping apparatus according to claim 1, wherein said warning includes information of said fire determination device that sent said activation signal. The storage unit further has the threshold values of a plurality of different pressures,
The control unit energizes the motor when the pressure detected by the pressure detector falls below the lowest threshold, and issues a warning to the outside without energizing the motor when the pressure is below the other thresholds. 2. The pumping device of claim 1, wherein When the control unit receives the activation signal from the fire determination device and the detected current value exceeds the threshold value, the control unit repeatedly energizes and stops the motor, and energizes and stops the motor. 2. The pump device according to claim 1, wherein energization of said motor is stopped when said stop exceeds a predetermined number of times, and energization of said motor is continued when said detected current value is below said threshold value. A plurality of pressure detectors are provided,
The control unit issues a warning to the outside without energizing the motor when the start signal is sent to the control unit only from some of the pressure detectors, and all of the pressure detectors output the 2. The pump device according to claim 1, wherein the motor is energized when the start signal is sent to the control unit. further comprising a communication unit;
9. The pump device according to claim 6, wherein said control unit transmits information that said motor is not energized to said outside. further comprising a communication unit;
2. The pump device according to claim 1, wherein said control unit transmits to the outside information that said activation signal has been received from said fire determination device . The storage unit further has the threshold values of a plurality of different pressures,
The control unit energizes the motor when the pressure detected by the pressure detector provided in the fire extinguishing equipment is below the predetermined pressure threshold, and the detected pressure is higher than the predetermined threshold. 2. The pump apparatus according to claim 1, wherein energization of said motor is stopped when said threshold is exceeded. a pump unit having a motor and a pump and connected to a pipe that is closed at an end or in the middle;
a storage unit that stores a threshold value for determining that the current value supplied to the motor is overcurrent;
A protection function that detects a current value applied to the motor, compares the detected current value with the threshold value, and stops energizing the motor when the detected current value exceeds the threshold value. and energizes the motor even if the detected current value is equal to or greater than the threshold value when a start signal for the pump unit is received from a fire determination device provided in the fire extinguishing equipment. a control unit;
with
The storage unit further has the threshold values of a plurality of pressures,
The control unit energizes the motor when the pressure detected by the pressure detector provided in the fire extinguishing equipment falls below the predetermined threshold, and the state in which the pressure falls below the threshold is stored in advance. a pump device that stops energizing the motor when the time continues for a time equal to or longer than the threshold of time stored in the unit, or when an electrically connected timer counts a preset time. After activating the pump unit by the activation signal received from the pressure detector, the control unit determines whether the detected current value is equal to or greater than the threshold value and the detected pressure is equal to or greater than the threshold value of a predetermined pressure. 13. Pumping apparatus according to claim 11 or claim 12, wherein in some cases the motor is de-energized. After starting the pump unit by the start signal received from the pressure detector, the control unit receives the start signal from the water flow detector provided in the fire extinguishing equipment, and the detected pressure reaches a predetermined level. 13. A pumping device according to claim 11 or claim 12, wherein the activation signal from the water flow detector is not accepted if the pressure is above the threshold. a pump unit having a motor and a pump and connected to a pipe that is closed at an end or in the middle;
a storage unit that stores a threshold value for determining that the current value supplied to the motor is overcurrent;
A protection function that detects a current value applied to the motor, compares the detected current value with the threshold value, and stops energizing the motor when the detected current value exceeds the threshold value. and energizes the motor even if the detected current value is equal to or greater than the threshold value when a start signal for the pump unit is received from a fire determination device provided in the fire extinguishing equipment. a control unit;
with
The storage unit further has the threshold values of a plurality of different pressures,
The control unit energizes the motor when the pressure detected by the pressure detector provided in the fire extinguishing equipment is below the predetermined pressure threshold, and the detected pressure is higher than the predetermined threshold. stopping energization of the motor when the threshold is exceeded;
After starting the pump unit by the start signal received from the pressure detector, the control unit receives the start signal from the water flow detector provided in the fire extinguishing equipment, and the detected pressure reaches a predetermined level. A pumping device that does not accept the activation signal from the water flow detector if the pressure is above the threshold. The control unit has a terminal unit having a plurality of terminals,
2. The pump device according to claim 1, wherein the fire determination devices are classified into at least two types, and the fire determination devices are connected to different terminals for each of the types. The control unit has at least one terminal unit or a communication unit,
2. The control unit according to claim 1, wherein the control unit energizes the motor when receiving the start signal from the fire determination device, and stops energizing the motor when receiving a stop signal from the outside. The described pumping device. a pump unit having a motor and a pump and connected to a pipe that is closed at an end or in the middle;
a storage unit that stores a threshold value for determining that the current value supplied to the motor is overcurrent;
A protection function that detects a current value applied to the motor, compares the detected current value with the threshold value, and stops energizing the motor when the detected current value exceeds the threshold value. and energizes the motor even if the detected current value is equal to or greater than the threshold value when a start signal for the pump unit is received from a fire determination device provided in the fire extinguishing equipment. a control unit;
with
The control unit has at least one terminal unit or a communication unit,
The control unit energizes the motor when receiving the start signal from the fire determination device, and stops energizing the motor when receiving a stop signal from the outside ,
When the detected current value exceeds the threshold value and a stop signal is received from the outside, the control unit stops energizing the motor, and the detected current value exceeds the threshold value. and a pump device that continues to energize the motor when a stop signal is received from the outside. A control panel used in the pump device according to any one of claims 1 to 18,
The storage unit that stores the threshold value for determining the current value supplied to the motor of the pump unit that has the motor and the pump and is connected to the pipe that is closed at the end or in the middle thereof as the overcurrent. and,
detecting a current value applied to the motor, comparing the detected current value with the threshold value, and stopping the supply of current to the motor when the detected current value is equal to or greater than the threshold value; When the activation signal for the pump unit is received from the fire determination device having a protective function and provided in the fire extinguishing equipment, even if the detected current value is equal to or greater than the threshold value, the control unit that energizes the motor;
A control panel with A control board used in the pump device according to any one of claims 1 to 18,
The storage unit that stores the threshold value for determining the current value supplied to the motor of the pump unit that has the motor and the pump and is connected to the pipe that is closed at the end or in the middle thereof as the overcurrent. and,
Protection for detecting a current value applied to the motor, comparing the detected current value with the threshold value, and stopping power supply to the motor when the detected current value is equal to or greater than the threshold value function, and when a start signal for the pump unit is received from the fire determination device provided in the fire extinguishing equipment, even if the detected current value is equal to or greater than the threshold value, the motor The control unit that energizes the
a substrate on which the storage unit and the control unit are mounted;
A control board comprising: