JP2020133473A - Pump device, control panel and control board - Google Patents

Abstract

To provide a pump device that can prioritize drive of a pump in fire disaster while preventing damage of a motor, and provide a control panel and a control board.SOLUTION: A pump device 1 comprises: a pump unit 12 that has a motor 22 and a pump 21, and is connected to pipes 13, 501 that are closed at a terminal or a middle part; a storage unit 43 that stores a threshold value used for determining a current value supplied to the motor 22 as an overcurrent; and a control unit 41 that has a protection function of detecting the current value passed to the motor 22, comparing the detected current value and the threshold value, and stopping electrification to the motor 22 when the detected current value is greater than or equal to the threshold value, and when a start signal of the pump unit 12 is received from a fire determination device 301 provided in a fire extinguishing facility 100, performs the electrification to the motor 22 even in a case where the detected current value is equal to or more than the threshold value.SELECTED DRAWING: Figure 2

Description

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

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

In such a pump device, if the down time is long, there is a risk that parts formed of the metal material of the pump will rust, and the scale in which inorganic salt compounds such as calcium, magnesium and silica contained in water are precipitated will be present in the pump. May occur in. If these rusts and scales occur in the pump, the rotating body such as the impeller and the rotating shaft may stick to the fixed body such as the casing, and the rotation may be hindered. If the pump device is driven in this state, an overcurrent may occur in the motor.

Therefore, in order to prevent the rotating body from sticking and to detect a failure of the pump device or the like, periodic inspection operation or maintenance operation is required.

Japanese Patent No. 6442338

However, if the period from the periodic inspection or maintenance operation to the next periodic inspection or maintenance operation is long, the detection of an abnormality in the pump device may be delayed, and the pump device may not be able to operate in the event of a fire. Further, if the motor is continuously energized when an overcurrent occurs, the motor may be damaged or ignited. However, in the event of a fire, there is also the problem that it is necessary to energize the motor and drive the pump as much as possible.

Therefore, an object of the present invention is to provide a pump device, a control board, and a control panel that can give priority to driving a pump in the event of a fire while preventing damage to the motor.

According to one aspect of the present invention, the pump device has a motor and a pump, and determines that the pump unit connected to the pipe closed at the end or the middle portion and the current value supplied to the motor are overcurrent. The storage unit that stores the threshold value detects the current value that energizes the motor, compares the detected current value with the threshold value, and if the detected current value exceeds the threshold value, When the start signal of the pump unit is received from the fire judgment device provided in the fire extinguishing equipment, which has a protection function for stopping the energization of the motor, the detected current value is equal to or higher than the threshold value. Even so, it includes a control unit that energizes the motor.

According to one aspect of the present invention, the control panel has a motor and a pump, and the current value supplied to the motor of the pump unit connected to the pipe closed at the end or the middle part is a threshold value for determining the overcurrent. The storage unit that stores the motor and the current value of energizing the motor are detected, and the detected current value is compared with the threshold value. If the detected current value is equal to or higher than the threshold value, the motor When the start signal of the pump unit is received from the fire judgment device provided in the fire extinguishing equipment, which has a protection function for stopping the energization of the current, the detected current value is equal to or higher than the threshold value. However, it also includes a control unit that energizes the motor.

According to one aspect of the present invention, the control board has a motor and a pump, and the current value supplied to the motor of the pump unit connected to the pipe closed at the end or the middle part is a threshold value for determining overcurrent. The storage unit that stores the motor and the current value that energizes the motor are detected, and the detected current value is compared with the threshold value. If the detected current value is equal to or higher than the threshold value, the motor When the start signal of the pump unit is received from the fire judgment device provided in the fire extinguishing equipment, which has a protection function for stopping the energization of the electric motor, the detected current value is equal to or higher than the threshold value. However, it includes a control unit that energizes the motor, a storage unit, and a substrate on which the control unit is mounted.

According to the present invention, it is possible to provide a pump device, a control board and a control panel that can give priority to driving a pump in the event of a fire while preventing damage to the motor.

The explanatory view which shows the structure of the water supply facility which concerns on one Embodiment of this invention. The side view which shows the structure of the pump device used for the water supply facility. The front view which shows the structure of the control panel used for the pump device. The front view which shows the internal structure of the control panel. The side view which shows the structure of the pump device which concerns on the modification of this invention. The side view which shows the structure of the pump device which concerns on the modification of this invention.

(One Embodiment)
Hereinafter, the configuration of the pump device 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. In this embodiment, the pump device 1 will be described with reference to an example of a fire extinguishing pump device used in the fire extinguishing equipment 100 as a water supply equipment.

FIG. 1 is an explanatory view showing the configuration of the fire extinguishing equipment 100 according to the embodiment of the present invention, FIG. 2 is a side view showing the configuration of the pump device 1, and FIGS. 3 and 4 are controls used in the pump device 1. It is a front view which shows the appearance and the internal structure of the board 18.

As shown in FIG. 1, the pump device 1 is used for the fire extinguishing equipment 100 provided in the building. First, the configuration of the fire extinguishing equipment 100 will be described. As shown in FIG. 1, the fire extinguishing equipment 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.

In the auxiliary pressurizing device 101, when the pressure in the pipe 501 connected to the water discharge means 201 drops, the auxiliary pressurizing device 101 automatically operates before the pump device 1 starts to recover the pressure in the pipe 501. It is a pump device to make it.

The auxiliary pressurizing 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, and a priming tank 114. It is equipped with a control panel 115.

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. The auxiliary motor 121 is electrically connected to the control panel 115. The primary side of the auxiliary pump 122 is connected to the priming tank 114, and the secondary side is 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 in the connecting pipe 123.

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

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

The control panel 115 includes, for example, a storage unit 131 and a control unit 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. Further, the auxiliary stop pressure is set lower than the cutoff 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 less than the starting pressure stored in the storage unit 131, the control unit 132 starts the auxiliary pump unit 111. Further, when the control unit 132 determines that the pressure detected by the pressure detector 113 during the 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 means 201 is, for example, a plurality of water dischargers provided for each floor of the building, pipes connected to other water discharge devices, and the like. The water discharge means 201 is opened in the event of a fire to discharge water for extinguishing the fire. As a specific example, the water discharge means 201 includes, for example, a plurality of sprinklers 211, a fire hydrant 212, and a connected water pipe 213.

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

The sprinkler head 211b has, for example, a water discharge port capable of discharging water on the floor of a building by opening and discharging water due to the heat of a fire. Further, in the sprinkler head 211b, for example, when any of the sprinkler heads 211b provided on the same floor is opened and water is discharged, the other sprinkler heads 211b provided on the same floor are also opened and water can be discharged in conjunction with each other. It is formed.

The fire hydrant 212 is provided at least either indoors or outdoors in the building. The 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 a pipe 501, a nozzle 212c provided on the hose 212b, and an on-off valve provided on the nozzle 212c. ing. Further, 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 the water discharge port. ..

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

The fire judgment device 301 is a starter for starting the pump device 1. For example, the fire determination device 301 includes a fire alarm 311, a manual start device for fire hydrants 312, a remote start device 313, a water flow detector 314, an interlocking device for fire hydrants 315, and a pressure detector 33. The fire determination device 301 is electrically connected to the control panel 18 via, for example, a signal line 99.

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

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

The remote start device 313, for example, is remotely controlled from a disaster prevention center or the like to issue a start signal of the pump unit 12 to the control panel 18.

When water with a predetermined flow rate or flow velocity flows into the pipe 501, the water flow detector 314 operates a switch provided inside and issues a start signal of the pump unit 12 to the control panel 18. The switch provided inside the water flow detector 314 is, for example, a push-type micro switch, a paddle switch, a secondary side of a valve provided inside the water flow detector 314, and the water flow detector 314. It is a pressure switch provided.

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

The water supply source 401 is a water tank for extinguishing a fire. The 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 is connected to the sprinkler 211, the fire hydrant 212, and the connected water pipe 213. The pipe 501 is provided with a water flow detector 314. The pipe 501 is closed at the end or in the middle by a sprinkler 211, a fire hydrant 212, and a connected water pipe 213.

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. , A control panel 18 and the like.

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 to the upper surface thereof.

The pump unit 12 includes a pump 21 and a motor 22. The pump 21 includes a suction port 21a and a discharge port 21b. The pump 21 houses an impeller fixed to a rotating shaft inside the pump 21. The pump 21 discharges the increased pressure water to the secondary side.

The motor 22 is formed so that the rotation shaft can rotate. The motor 22 drives the impeller of the pump 21 by rotating the rotating shaft. The motor 22 is electrically connected to the control panel 18 via the signal line 99.

One end of the discharge pipe 13 is connected to the discharge port 21b of the pump 21, and the other end is 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. The pressure detector 13b is formed so as to detect the pressure in the discharge pipe 13 and transmit it to the control panel 18.

The pressure tank 14 includes 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, for example, the discharge pipe 13. The pressure gauge 32 is formed so as 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 that the pressure in the tank 31 can be transmitted to the control panel 18.

The automatic on-off valve 15 is provided, for example, on the secondary side of the pump unit 12 and on the primary side of the water flow detector 314, on the secondary side of the pump unit 12 and on 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 a 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 always closed and opens by a signal from the control panel 18 to drain 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, for example, the discharge pipe 13 or the pipe 501. The temperature detector 16 detects the temperature of water in any of the pipes 13 and 501 on the secondary side of the pump unit 12, or the surface temperature of any of the pipes 13 and 501. The temperature detector 16 is electrically connected to the control panel 18 via the signal line 99. The temperature detector 16 transmits the detected temperature information to the control panel 18.

The priming tank 17 is connected to the pump 21 via a pipe 17a so that priming water can be supplied to the pump 21. Further, the priming tank 17 is provided with an orifice in order to suppress the temperature rise of the pump 21, and has a relief pipe 17b that squeezes a part of the water boosted by the pump 21 and releases it to the priming tank 17.

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

The control board 46 is configured by, for example, mounting a control unit 41, a storage unit 43, a communication unit 45, and a terminal unit 48 on a single substrate 46a. The housing 47 houses 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 houses a plurality of devices 38 such as a power transformer, a current transformer for current measurement, an electromagnetic contactor, and a circuit breaker for wiring.

The control unit 41 is connected to the motor 22 and the pressure detector 33 via the signal line 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 that the motor 22 can be driven. The control unit 41 is formed so that the motor 22 can be driven when it is determined that a fire has occurred. As a specific example, when the control unit 41 receives the start signal of the pump unit 12 issued from the fire judgment device 301, the control unit 41 drives the motor 22 according to the program stored in the storage unit 43. 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 used as the fire judgment device 301 may send a start signal of the pump unit 12 to the control panel 18 even when a fire has not occurred. is there. For example, in the pressure detector 33, when the detection unit and the primary side piping of the detection unit are clogged by foreign matter such as sand, the pressure near the detection unit gradually decreases to a predetermined pressure or less, and the pump unit is sent to the control panel 18. There is a risk of sending 12 start signals. For example, when water leaks from the piping on the secondary side of the pump unit 12, the pressure detector 33 gradually lowers the pressure to a predetermined pressure or less, and sends a start signal of the pump unit 12 to the control panel 18. There is a risk. For example, when the air sealed in the pressure tank 14 is dissolved in water, the pressure detector 33 may gradually reduce the pressure to a predetermined pressure or less and send a start signal of the pump unit 12 to the control panel 18. There is. For example, the water flow detector 314 may detect the water flow when water is leaking from the piping on the secondary side of the pump unit 12 and send a start signal of the pump unit 12 to the control panel 18. For example, when the auxiliary pressurizing device 101 is improperly set, the flowing water detector 314 activates the auxiliary pressurizing device 101, detects the flowing water based on the amount of flowing water, and sends a start signal of the pump unit 12 to the control panel 18. There is a risk. For example, in the fire hydrant interlocking device 315, after using the hose 212b for fire extinguishing training or the like, if the storage state in the fire hydrant box 212a is poor, the nozzle 212c falls and the hose 212b extends, so that the pump unit 12 moves to the control panel 18. There is a risk of sending a start signal.

Further, even when the start signal of the pump unit 12 is issued to the control panel 18 by the fire judgment device 301 even though the fire has not occurred as described above, the pump device 1 sends the "fire" to the disaster prevention center or the like. Information that the start signal of the pump unit 12 has been issued by the determination device 301 to the control panel 18 ”is transmitted via the terminal unit 48. That is, the disaster prevention center cannot immediately determine whether or not a fire has occurred, and it is necessary to further confirm the information. Further, since an alarm notifying the occurrence of a fire reverberates in the building together with the transmission, it is necessary to avoid starting the pump unit 12 by the fire judgment device 301 except at the time of a fire.

The control unit 41 has a calendar function capable of managing the date and a clock function capable of managing the time. The control unit 41 has a counter function for counting the time elapsed after the pump unit 12 is driven. The control unit 41 has an integrated value of the stop time of the pump unit 12 counted by the counter function after the drive of the pump unit 12 is stopped, the elapsed time after the operation of the pump unit 12, and an integrated value of the energization time of the control unit 41 and the motor 22. , A function to store the detected values detected in each inspection operation, threshold values such as current and pressure, history of energization and stop of the motor 22, opening / closing history of automatic on-off valve, external transmission destination information, etc. 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 formed so that history information such as the time counted by the counter function and the drive information of the past pump unit 12 can be transmitted to the communication unit 45 based on the instruction input by the input device 42.

The input device 42 is formed so that information such as a date and time and a command can be input. The input device 42 is formed so that the input information can be transmitted to the control unit 41.

The storage unit 43 stores, for example, a starting pressure for starting the pump unit 12, a deadline lift during a deadline operation, a control program for the pump unit 12 at the time of a fire and in each inspection operation, and the like. 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 that is determined to be an overcurrent when the motor 22 is energized. For example, a plurality of threshold values 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 value is a current value lower than the second threshold value. When three or more threshold values including the first threshold value and the second threshold value are stored in the storage unit 43 as a plurality of threshold values, the first threshold value has the lowest current value among the plurality of threshold values. Set to the current value. The first threshold value 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 is in the rated operation and the deadline operation. For example, the first threshold value is an overcurrent higher than the expected current value generated 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 is damaged or ignited. It is set to a current value at which secondary abnormalities such as, etc. are unlikely to occur or hardly occur. As a specific example, the first threshold value is set higher than the current value of the motor 22 that flows during the rated operation and the deadline operation of the motor 22 in the normal state, and is set to be equal to or lower than the allowable current value of the motor 22 set by the manufacturer.

The second threshold value is a current value higher than the first threshold value, and is set so that it cannot be changed by the user, for example. When three or more threshold values including the first threshold value and the second threshold value are stored in the storage unit 43 as a plurality of threshold values, the second threshold value is the current value having the highest current value among the plurality of threshold values. Is set to. The second threshold value 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 is in the rated operation and the deadline operation. For example, the second threshold value is a current value that may cause secondary abnormalities such as damage to the motor 22 and ignition among the plurality of threshold values. As a specific example, the rotating body of the pump 21 is completely fixed. It is a current value generated in the motor 22 at the time of abnormality that cannot be rotated.

Further, the storage unit 43 is provided outside to transmit information on the pump device 1 such as the identification number, model, and position information of the pump unit 12 and a warning when the pressure on the secondary side of the pump unit 12 is increased. Information of an external terminal 90 such as a personal computer or a tablet terminal is stored.

When an abnormality occurs in the pump unit 12, the notification unit 44 is formed so that the abnormality can be notified to the outside based on the information transmitted from the control unit 41. 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 send and receive information to and from the outside. For example, the communication unit 45 outputs the 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 a network such as the Internet, LAN (Local Area Network), wireless or wired cable, etc. via the communication unit 45, and transmits the information to the external terminal 90. Display it.

The terminal portion 48 has a plurality of terminals for receiving the start signal of the pump unit 12 by the fire judgment device 301. As described above, the fire judgment device 301 is electrically connected to the control panel 18 via, for example, the signal line 99, but conventionally, since it was not necessary to identify the fire judgment device 301, a plurality of fire judgment devices 301 The signal line 99 of the above was electrically connected to one terminal. In the present embodiment, the terminal portion 48 has a plurality of terminals for identifying the start signal of the pump unit 12 by the fire judgment device 301.

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 related to abnormal boosting and the like. Further, here, the external terminal 90 manages, for example, a first external terminal 91 that the user has at a place away from the pump device 1, an administrator other than the user, a manufacturer of the pump device 1 as a specific example, and a building. The management center and the second external terminal 92 owned by the manager 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. In the past, communication was performed by wire to the management center or the like via the terminal unit 48. In this case, for example, two different terminals are set as non-voltage a contacts, and an overcurrent is notified when the contacts are turned on. Therefore, in order to notify other events such as insufficient pressure or electric leakage, a distinction is made. It was necessary to provide as many terminals as there were desired events.

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

(1) A function for determining an overcurrent of the motor 22.

(2) A function of protecting the motor 22 when an overcurrent of the motor 22 occurs.

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

Next, the functions (1) to (3) possessed by 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 to determine whether or not an overcurrent has occurred in the motor 22.

A specific example of the function of (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 the plurality of threshold values stored in the storage unit 43. Then, when the detected current value is equal to or greater than the smallest first threshold value among the plurality of threshold values, the control unit 41 determines that an overcurrent has occurred in the motor 22. Further, the control unit 41 compares with each of the plurality of threshold values and determines whether or not the detected current value is equal to or higher than each threshold value. In addition, the control unit 41 controls the notification unit 44 to warn the surroundings of overcurrent information by displaying sound, light, or information. Further, the control unit 41 transmits the information of the overcurrent to the first external terminal 91 and the second external terminal 92 to give a warning to the outside.

The overcurrent information is, 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 is detected, and the warning content. The warning content is, for example, content corresponding to a plurality of threshold values, and is based on, for example, a current value when it is determined to be overcurrent, a threshold value corresponding to the current value, and a current value when it is determined to be overcurrent. This is the assumed state of the pump 21 and the motor 22. Further, among the overcurrent information transmitted to the external terminal 90, the warning content is the warning content corresponding to the threshold value having the highest value among the plurality of threshold values in which the overcurrent current value exceeds. As a specific example, the content of the warning when the detected current value is equal to or higher than the second threshold value includes, for example, the detected current value, the information that the current value exceeds the second threshold value, and the pump 21 completely. It is a content that allows the user and the administrator to check the state of the pump unit 12, such as assuming that the pump unit is stuck.

The function of (2) is when it is determined by the function of (1) that an overcurrent that may damage the motor 22 is generated in the motor 22, and the fire judgment device 301 starts the pump unit 12. This is a function of protecting the motor 22 when no signal is issued. Here, the damage is, for example, burning due to continuous generation of overcurrent in the motor 22.

A specific example of the function of (2) will be described below. As a specific example of the function of (2), first, the control unit 41 confirms the overcurrent of the motor 22 when it is determined by the function of (1) that an overcurrent has occurred in the motor 22. For example, the control unit 41 determines whether or not the overcurrent current value 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 an example in which the current value determined to be overcurrent is equal to or higher than the second threshold value, excluding the case where the threshold value is lower than the second threshold value. Will be described using.

For example, the control unit 41 determines whether or not the overcurrent of the motor 22 determined by the function of (1) is less than the second threshold value. The control unit 41 is the control unit 41 when the overcurrent value of the motor 22 is less than the second threshold value and the fire judgment device 301 does not issue a start signal of the pump unit 12. Continues energizing the motor 22 assuming that there is no risk of damage to the motor 22. From the next time onward, when there is a command to operate the pump unit 12, the motor 22 is energized to operate the pump unit 12. Here, the command for energizing the motor 22 includes, for example, both a manual command and an automatic command by a program or the like, and is a command for operating the pump unit 12 such as a periodic inspection or a maintenance operation.

The control unit 41 controls the motor 22 when the overcurrent value of the motor 22 is less than or equal to the second threshold value and the fire judgment device 301 does not issue a start signal for the pump unit 12. Since there is a risk of damage to the motor 22, the energization of the motor 22 is stopped. From the next time onward, unless the overcurrent is resolved, if the fire judgment device 301 does not issue a start signal for the pump unit 12, even if there is a command to operate the pump unit 12, the motor 22 Do not energize.

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

A specific example of the function of (3) will be described below. As a specific example of the function of (3), first, the control unit 41 determines that the function of (1) causes an overcurrent in the motor 22 that may damage the motor 22 and determines a fire. When the start signal of the pump unit 12 issued from the device 301 is received, the motor 22 is continuously energized regardless of the overcurrent level.

Further, the control unit 41 determines that the rotating body of the pump 21 is stuck when an overcurrent occurs in the motor 22 and the detected current value is equal to or higher than the second threshold value. Then, as the sticking release operation, the motor 22 is repeatedly energized and stopped. For example, energization and stop of energization of the motor 22 causes the current value of the motor 22 to be lower than the second threshold value, or the motor 22 is operated to eliminate the sticking of the pump 21 stored in advance in the storage unit 43. It is repeated until the number of times of energization and stop is exceeded, and the number of times of energization and stop of the motor 22 in the operation of lowering the second threshold value or eliminating the sticking of the pump 21 stored in advance in the storage unit 43 is set. If it exceeds the limit, the control unit 41 continues to energize the motor 22.

According to the pump device 1 used in the fire extinguishing equipment 100 configured in this way, it is a current value when the control unit 41 energizes the motor 22 and a current value generated in the motor 22 when an abnormality is stored in the storage unit 43. By comparing with the threshold value, it can be determined whether or not an abnormality has occurred in the motor 22. Further, 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 higher than the second threshold value. When the current value of the threshold value of is passed through the motor 22, the operation such as inspection operation or maintenance operation is not performed. As a result, it is possible to prevent the motor 22 from being damaged and the motor 22 from catching fire because an overcurrent that may be damaged flows through the motor 22.

Further, the control unit 41 sends water to the water discharge means 201 even when the start signal of the pump unit 12 is issued from the fire judgment device 301, that is, in the event of a fire, even when an overcurrent flows through the motor 22. Give priority to supplying. As described above, the pump device 1 can give priority to the protection of the motor 22 and the prevention of disaster occurrence due to overcurrent in the normal state, and can give priority to the extinguishing of the fire over the protection of the motor 22 in the case of a fire.

Further, when the current value generated in the motor 22 is an overcurrent, the control unit 41 can warn the information of the overcurrent via the notification unit 44 and the external terminal 90. Therefore, for example, it is possible to warn the user or the administrator of the fact that an overcurrent has occurred and information on maintenance or repair depending on the state of the overcurrent. That is, since the abnormal state and its contents can be notified to the outside, the pump device 1 cannot drive the pump unit 12 in the event of a fire due to the sticking of the rotating body of the pump 21, and the rotating body of the pump 21 It is possible to prevent the motor 22 from being damaged by energizing the motor 22 at the time of sticking.

Further, for example, when there is no risk of damage to the motor 22 or the overcurrent is small, for example, an overcurrent of about the first threshold value, the control unit 41 warns the outside while enabling the operation. Therefore, by setting the recommended time for replacement and maintenance of the motor 22 and pump 21 as the information corresponding to the detected current value and the first threshold value, it is possible to facilitate the management such as maintenance by the user or the administrator. it can.

Further, the user cannot change the second threshold value, which is the highest value among the plurality of threshold values stored in the storage unit 43. With this configuration, an overcurrent occurs in the motor 22 when the rotating body of the pump 21 is energized in a fixed state, causing problems such as damage to the motor 22 and inoperability of the pump unit 12 in the event of a fire. It is possible to prevent the user from setting an erroneous threshold value.

Further, the control unit 41 determines that the pump 21 is stuck when the detected current value at the time of overcurrent is equal to or higher than the second threshold value, and energizes and energizes the motor 22 as an operation for eliminating the sticking of the pump 21. Is repeatedly stopped. As a result, in the unlikely event that the pump 21 is stuck and a fire breaks out, the sticking 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 to.

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 be damaged is generated in the motor 22, the motor 22 is energized only in the event of a fire. By doing so, it is possible to give priority to driving the pump 21 in the event of a fire while preventing damage to the motor 22.

(Other embodiments)
Next, the pump device 1 according to another embodiment of the present invention will be described below. The pump device 1 according to another embodiment has the following functions (4) to (6) in addition to the functions (1) to (3) possessed by the control unit 41 of the pump device 1 according to the above-described embodiment. ) Has the function.

Specifically, the storage unit 43 further stores a predetermined time until the inspection operation, which is a specific operation, and a value for evaluating the pump unit 12 during the inspection operation are stored as threshold values. Here, the inspection operation is a periodic inspection of the pump unit 12 accompanied by a drive stop of the pump unit 12. For example, a plurality of inspection operations of the pump unit are set. Therefore, a plurality of threshold values, 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, a manual inspection. The first inspection operation is, for example, a legal inspection required for a fire extinguishing pump device. The first inspection operation is required to be performed, for example, when a predetermined time has elapsed from the previous first inspection operation. In other words, it is a statutory inspection that defines the number of inspections to be performed every predetermined period, such as once a year. Alternatively, it is determined that the first inspection operation is performed, for example, when the integrated value of the time when the control panel 18 is energized has elapsed a predetermined time since the previous first inspection operation. For example, the first inspection operation is performed every 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 deadline lift during the deadline operation, the voltage and current supplied to the motor 22 during the deadline operation, the rated lift during the rated load operation, and the rating. The voltage and current supplied to the motor 22 during load operation are detected. Further, in the first inspection operation, for example, the automatic on-off valve 15 is opened during the rated load operation, and water is drained through the drain pipe 15a. The automatic on-off valve 15 may be opened to drain water even before and after the deadline operation of the first inspection operation.

The second inspection operation is an inspection performed manually or automatically, for example, a self-inspection or a maintenance operation. In the second inspection operation, for example, the stop time of the pump unit 12 from the previous second inspection operation, and more specifically, the integrated time of the time when the motor 22 is not energized from the previous second inspection operation is predetermined. It is required to perform the operation manually before the time has elapsed, or to perform the integration automatically when the integrated time elapses. For example, the second inspection operation is performed by the user operating the input device 42 to drive the pump unit 12, or the control unit 41 driving the pump unit 12. For example, the second inspection operation is an operation for detecting the deadline lift during the deadline operation, the voltage and the current supplied to the motor 22 during the deadline operation. The automatic on-off valve 15 may be opened to drain water before and after the deadline operation of the second inspection operation.

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

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

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

The storage unit 43 stores, for example, a control program of 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 provided outside for transmitting a warning of the inspection operation, and the like.

Further, the control unit 41 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 the second inspection operation of the pump unit 12 and transmitting the status of the second inspection operation to the outside.

(6) A function that warns of inspection operation.

Next, the functions (4) to (6) of the control unit 41 will be described.
The function of (4) is that when a command to perform the first inspection operation is input by the input device 42, the pump unit 12 is first inspected for a predetermined time and the detected value detected by the operation of the pump unit 12. It is a function of determining whether or not the pump unit 12 is normal based on the fifth threshold value. Further, the function (4) is a function of transmitting the information of 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 of (4) will be described below. As a specific example of the function of (4), first, the control unit 41 determines whether or not a command for performing the first inspection operation has been input by the input device 42. Then, when it is determined that the command for performing the first inspection operation is input by the input device 42, the control unit 41 performs the cutoff operation and the rated load operation based on the control program of the pump unit 12 stored in the storage unit 43. The pump unit 12 is operated for a predetermined time.

Then, the control unit 41 detects the cut-off head (pressure) detected by the pressure detector 13b during the cut-off operation, the voltage and current supplied to the motor 22 during the cut-off operation, and the pressure detector 13b during the rated load operation. The rated head and the voltage and current supplied to the motor 22 during rated load operation are detected. Then, the control unit 41 compares the fifth threshold value with each of the detected detected values, determines whether or not the detected value is a normal value, and a value that may damage the equipment, for example, the current is not normal. In that case, the energization of the motor 22 is stopped.

The control unit 41 stores the information and the result of the first inspection operation in the storage unit 43. The information of the first inspection operation is, for example, the date and time when the first inspection operation was performed detected by the calendar function and the clock function, and the counter function counts from the time when the first inspection operation was performed last time to the time when the first inspection operation is performed. It is the integrated value of the time taken and the number of days elapsed from the day when the first inspection operation was performed last time. The result of the first inspection operation is a detection value of pressure, voltage, current, etc. detected during the first inspection operation, a judgment result of whether or not the detected value is a normal value, and the like.

The control unit 41 transmits the information of the first inspection operation and the result of the first inspection operation to the external terminal 90 by 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.

Further, the control unit 41 has elapsed from the previous first inspection operation counted by the counter function from the time when the first inspection operation was performed last time to the time when the first inspection operation was performed after the first inspection operation was performed. Reset the elapsed time.

The function of (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 value. The pump unit 12 is subjected to the second inspection operation for a predetermined time, and based on the detection value and the fifth threshold value detected by the operation of the pump unit 12, it is determined whether the pump unit 12 is normal or not, and there is a risk of equipment damage. This is a function of stopping energization of the motor 22 when a certain value, for example, a current is not normal. Further, the function (5) is a function of transmitting the information of the second inspection operation and the status of the first inspection operation such as the result of the second inspection operation to the external terminal 90.

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

When it is determined that the command for performing the second inspection operation has not been 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. Judge whether or not it exceeds. 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 of the pump unit 12 stored in the storage unit 43 The pump unit 12 is operated for a predetermined time by the deadline operation based on the control program.

Then, the control unit 41 detects the cut-off head (pressure) detected by the pressure detector 13b during the cut-off operation, and the voltage and current supplied to the motor 22 during the cut-off operation. Then, the control unit 41 compares the fifth threshold value with each of the detected detected values, and determines whether or not the detected value is a normal value.

The control unit 41 stores the information and the result of the second inspection operation in the storage unit 43. The information of the second inspection operation is, for example, the date and time when the second inspection operation was performed detected by the calendar function and the clock function, and the counter function counts from the time when the second inspection operation was performed last time to the time when the second inspection operation is performed. It is the integrated value of the stopped time and the number of days elapsed from the day when the second inspection operation was performed last time. Further, the result of the second inspection operation is each detected value of pressure, voltage, current, etc. detected during the second inspection operation, a judgment result of whether or not the detected value is a normal value, and the like.

The control unit 41 transmits the information of the second inspection operation and the result of the second inspection operation to the external terminal 90 by 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.

Further, 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 is performed last time to the time when the second inspection operation is performed when or after the second inspection operation is performed. ..

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

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

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

In addition, the control unit 41 sends a warning to perform the first inspection operation 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 the second. 1 The information is transmitted to the external terminal 91 and the second external terminal 92. That is, the control unit 41 transmits to the user and the administrator a warning that the first inspection operation needs to be performed and information on the pump device 1 that performs the first inspection operation.

The warning destination to which the control unit 41 gives a warning is transmitted based on the information of the external terminal 90 stored in advance in the storage unit 43. A part of the warning destination to which the control unit 41 gives a warning is set so that it cannot be rewritten by the user. In the present embodiment, at least the administrator's second external terminal 92 is set so that the user cannot rewrite it as a warning destination.

According to the pump device 1 configured in this way, the integrated value of the stop time of the pump unit 12 after the inspection operation is further set to the threshold value by the function of (4) to (6) in the notification unit 44 or the external terminal 90. When the value is exceeded, the control unit 41 displays a warning to prompt the inspection operation.

To explain this effect concretely, the pump device 1 integrates the elapsed time from performing the first inspection function manually performed to the next performing the first inspection function. Then, when the accumulated elapsed time of the pump unit 12 exceeds the third threshold value, the accumulated elapsed time to the user's first external terminal 91 and the administrator's second external terminal 92 such as the manufacturer or the management organization is the third. Send information that exceeds the threshold. As a result, it is possible to warn the user and the manager such as the manufacturer and the management organization that the first inspection operation has not been performed even after a predetermined time has elapsed and that the first inspection operation is required. That is, the user and the administrator can grasp whether or not the first inspection function is implemented. In particular, since the first inspection operation is a manual inspection operation, there is a risk of forgetting to carry out the inspection operation. However, according to the configuration of the pump device 1, enlightenment and management of the inspection operation. Can instruct the person to comply with the inspection operation.

In addition, when the first inspection operation is a mandatory operation such as a legal inspection operation, the inspection operation can be notified to the user and the administrator can manage or monitor the user. Can be encouraged. In particular, when the pump device 1 is a fire extinguishing pump device, it is possible to prevent the pump device 1 from being stuck due to rust, scale, or the like due to a long stop, and the pump device 1 cannot be started in the event of a fire. Further, since it is possible to prevent the pump device 1 from being in a non-startable state, it is possible to prevent an overcurrent from flowing to the motor 22.

Further, since the control unit 41 transmits the information and the result of the first inspection operation and the second inspection operation to the user and the manager, the user and the manager can grasp the inspection status.

Further, the control unit 41 receives a command to perform the second inspection operation by 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 is the fourth. If the threshold value is exceeded, the second inspection operation is performed. In particular, 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 even if the command for performing the second inspection operation is not input by the input device 42. 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, rust, scale, and the like can be suppressed as much as possible from adhering to the inside of the pump 21, so that the life of the pump unit 12 can be improved and the failure of the pump device 1 in the event of a fire can be suppressed as much as possible.

Further, when the inspection operation such as the first inspection operation and the second inspection operation is performed, the control unit 41 resets the integrated value of the elapsed time after the previous inspection operation or the stop time of the pump unit 12, so that the integration is performed. 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 effect of the pump device 1 according to the above-described embodiment, inspection operation can be promoted.

The present invention is not limited to the two embodiments described above. For example, in the above-mentioned example, when the detected current value is equal to or higher than the second threshold value and the start signal of the pump unit 12 is issued from the fire judgment device 301, the motor 22 is energized and the energization is stopped. The example of repeating the above is described, but the present invention is not limited to this. For example, when the detected current value is equal to or higher than the second threshold value and the start signal of the pump unit 12 is not issued from the fire judgment device 301, the operation for eliminating the sticking of the pump 21 is performed. The motor 22 may be repeatedly energized and stopped. In such a configuration, the operation to eliminate the sticking of the pump 21 is performed, the current value of the motor 22 is detected, and the detected current value is lower than the second threshold value, or the storage unit 43 is used. The operation for eliminating the sticking of the pump 21 may be stopped when the number of times of energization and stopping of the motor 22 in the operation for eliminating the sticking of the pump 21 stored in advance is exceeded. 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 generated when the motor 22 is energized in a fixed state.

Further, in the above-described example, the configuration of the pump device 1 having a calendar function, a clock function, and a counter function has been described, but the present invention is not limited thereto. For example, the calendar function may increase the power consumption of the battery and increase the cost of the pump device 1, so that the pump device 1 may not have the calendar function. In the case of such a pump device 1, the above-mentioned overcurrent information, inspection operation information, results, etc., are obtained by the clock function and the counter function without including the elapsed days and inspection days. Only time information such as time and stop time is required. Similarly, the counter function may be used to obtain only the integrated value of the stop time of the pump unit 12 without having the clock function. Furthermore, it does not have a clock function and a counter function, only a calendar function is provided, the number of stop days is accumulated instead of the stop time, and the information and results of the inspection operation are the elapsed days, the stop days, the inspection date, and so on. The information may be only the date.

Further, in the above-mentioned example, the configuration in which the sprinkler 211 is provided as the fire extinguishing equipment 100 has been described. However, the sprinkler 211 is provided with a closing valve on the sprinkler head 211b and is always open even if it is open in the event of a fire. It may be an open type. For example, when an open type sprinkler head 211b is used, an on-off valve is provided on 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. Further, the fire extinguishing equipment 100 may be configured to use a foam fire extinguishing equipment or a water spray fire extinguishing equipment instead of the sprinkler 211.

Further, in the above-described example, an example in which the automatic on-off valve 15 is provided and can be opened and closed to drain water to the drain port 15b has been described. For example, the automatic on-off valve 15 is gradually opened and closed to prevent water hammer. It may be opened and closed to increase or decrease the opening degree.

Further, in the above-described example, the configuration for obtaining the elapsed time for performing the periodic inspection, which is the first inspection operation, by counting by the counter function has been described, but the method for counting the elapsed time can be appropriately set. For example, the elapsed time may be estimated by the integrated value of the energization time to the control unit 41 if the periodic inspection can be surely performed within the period specified by the law, and the number of days is counted by the calendar function. There may be.

Further, in addition to the above-mentioned example, the current value at the time of deadline is stored in the storage unit 43 in advance, 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. When the value becomes larger than the current value stored in 43, the pump 21 may have a function of determining that the pump 21 is stuck. Further, for example, as a function of determining a defect 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 pressure at the time of the deadline stored in the storage unit 43 in advance, the pump 21 may be determined to be stuck. That is, if the automatic on-off valve 15 is closed, the pressure on the secondary side of the pump unit 12 rises as the pump 21 is driven, so that it can be confirmed whether or not the pump 21 is driven.

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

Further, in the above-described example, the example in which the water flow detector 314 is provided in the pipe 501 has been described, but the water flow detector 314 may be provided on the secondary side of the pump unit 12, and may be provided in the pump device 1. ..

Further, in the above-described example, the water flow detector 314 operates a switch provided inside when water of a predetermined flow rate or flow velocity flows, and issues a start signal of the pump unit 12 to the control panel 18. An example has been described, but the present invention is not limited to this. For example, a predetermined flow rate or flow velocity is detected by a differential pressure or the like, a signal of the flow rate value is sent to the control panel 18, and the pump unit 12 is started when the threshold value of the flow rate stored in advance in the storage unit 43 is exceeded. There may be.

Further, in the above-described example, an example in which threshold values of a plurality of current values are stored has been described, but as a configuration in which a warning is given when the current value supplied to the motor 22 exceeds the threshold value and a different warning is given for each threshold value. May be good. As a result, the degree of overcurrent becomes clear, and measures can be taken before the motor 22 is damaged.

Further, in the above-described example, when the start signal of the pump unit 12 is issued from the fire judgment device 301, priority is given to supplying water to the water discharge means 201 even when an overcurrent flows through the motor 22. Although an example is shown, the fire judgment device 301, which is likely to send a start signal even when a fire has not occurred, may be configured to protect the motor 22 by an overcurrent. For example, the fire judgment device 301 is divided into those that are likely to send a start signal when there is no fire and those that are unlikely to send a start signal when there is no fire. When a fire judgment device 301, which is unlikely to send a start signal when it has not occurred, sends a start signal for the pump unit 12 to the control panel 18, and an overcurrent flows through the motor 22, the energization of the motor 22 is stopped. It may be configured to protect the fire and give a warning to the outside by the control unit 41. Further, for example, the start signal from the fire judgment 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. When the current flows to 22, the energization of the motor 22 may be stopped to protect the motor 22, and the control unit 41 may give a warning to the outside. This makes it possible to prevent damage to the motor and control panel due to overcurrent and the occurrence of fire due to overcurrent when the possibility of fire is low, and to warn the user and management of the occurrence of overcurrent. Can call attention to people.

Further, in the above-mentioned example, the configuration in which overcurrent protection is performed against the start of the pump unit 12 by the start signal of the fire judgment device 301, which is likely to send the start signal even in the case of non-fire, has been described. By warning whether the pump unit 12 has been started by the start signal from the device 301, it can be utilized for identifying the cause of the start signal issuance at the time of non-fire. In the above-described example, the configuration in which the pressure detector 33 and the water flow detector 314 are connected to the control panel 18 via the signal line 99 has been described. For example, each signal line 99 is connected to a different terminal portion 48, and from which terminal. By storing in the storage unit 43 whether the pump unit 12 has been started by the start signal of the above, the start signals of the pressure detector 33 and the water flow detector 314 can be identified, and the source of the start signal can be specified. For example, when the pressure detector 33 or the water flow detector 314 transmits the start signal by wireless communication, the source of the start signal can be determined by adding the identification information of the pressure detector 33 or the water flow detector 314 to the start signal. Can be identified.

Further, in the above-mentioned example, the configuration in which the pump unit 12 is started by the start signal of the fire judgment device 301, which is likely to send the start signal even in the case of non-fire, is overcurrent protected. You may combine the sticking prevention operation which repeats energization and stop of. For example, energization and stop of energization of the motor 22 causes the current value of the motor 22 to be lower than the threshold value stored in advance in the storage unit 43, or eliminates the sticking of the pump 21 stored in the storage unit 43 in advance. It is performed until the number of times of energization and stop of the motor 22 in the operation is exceeded, and when the current value of the motor 22 becomes lower than the threshold value, the control unit 41 continues the energization of the motor 22 and the pre-stored energization and energization. If the current value of the motor 22 does not become lower than the threshold value even if the number of stops is exceeded, the energization of the motor 22 is stopped. As a result, the overcurrent can be eliminated as much as possible and the pump unit 12 can be started even for the start signal of the fire judgment device 301 which is likely to send the start signal even in the non-fire. Further, the control unit 41 can notify 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.

Further, in the above-described example, the example in which the pressure detector 33 is provided in the pump device 1 has been described, but it may be on the secondary side of the pump unit 12 and the secondary side of the check valve 13a, and the pipe 501 may be used. It may be provided. When the pressure detector 33 is provided in the pressure tank 14, the pressure detector 33 is not easily affected by running water, so that more stable and highly accurate pressure detection is possible.

Further, in the above-described example, an example in which one pressure detector 33 is provided has been described, but a plurality of pressure detectors 33 may be provided in parallel in the tank 31. For example, as shown in FIG. 5, the pressure detector 34 may be attached to the tank 31 via a pipe different from the pressure detector 33. This makes it possible to determine whether or not the pressure detector 33 has issued a report due to clogging due to foreign matter such as sand. For example, when a drop in pressure 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 the pressure is detected. When the start signal of the pump unit 12 is sent from the device 33 and the pressure detector 34 to the control panel 18, it may be determined that a fire has occurred and the motor 22 may be energized. As a result, it is possible to avoid starting the pump unit 12 by the fire judgment device 301 except in the event of a fire. Further, by warning the outside of the information that the motor 22 is not energized, it is possible to detect a defect of the pressure detector 33 or the pressure detector 34 due to clogging or the like at an early stage.

Further, in the above-mentioned example, the configuration having the current threshold value is described, but by further providing a plurality of pressure threshold values, “a fire judgment device 301 issues a start signal of the pump unit 12 to the control panel 18 at the time of non-fire”. It is possible to prevent the "information" sent to the disaster prevention center or the like as much as possible. For example, in the pressure threshold value, a start signal may be issued when the pressure threshold value falls below the lowest pressure threshold value, and a warning may be issued without issuing a start signal when the pressure threshold value falls below any other threshold value. As a result, it is possible to warn the user and the administrator of a gradual pressure drop due to water leakage from the piping or clogging of foreign matter, and to confirm and respond to an abnormality before the start signal of the pump unit 12 is input to the control panel 18 due to the pressure drop. can do. Further, 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 warned to the outside, the user or the administrator can record the history. It can be referred to, and can be used by users and managers to grasp the degree of water leakage and identify the cause from the tendency of pressure decrease.

Further, in the above-mentioned example, "information that the start signal of the pump unit 12 is issued to the control panel 18 by the fire judgment device 301" is transmitted via the terminal unit 48, but the present invention is not limited to this. .. For example, by transmitting the above-mentioned information via the communication unit 45, it is possible to convey a more detailed situation and reduce the number of terminals to be used.

Further, in the above-described example, the configuration having 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 piping or melting of air in the tank, the pressure detector 33 sends a start signal of the pump unit 12 to the control panel 18 as a fire judgment device 301. There is a risk that the pump unit 12 will be started even though it is not a fire. In this case, since the pump unit 12 is started by the start signal of the fire judgment device 301, it is necessary to manually stop the pump unit 12. In order to avoid this, the control panel 18 further stores a plurality of pressure thresholds, and when the pressure detected by the pressure detector 33 falls below a predetermined pressure threshold, the motor 22 is energized and the pressure in the pipe is applied. When the pressure detected by the pressure detector 33 exceeds a threshold value higher than a predetermined threshold value after the pressure rises, the energization of the motor 22 may be automatically stopped. Here, the predetermined threshold value is set as, for example, the same value as the auxiliary starting pressure. Further, a threshold value higher than a predetermined threshold value is set as, for example, the same value as the auxiliary stop pressure. As a result, the pressure maintenance operation can be performed without the auxiliary pressurizing device 101 to prevent the pressure from dropping due to water leakage from the pipe or melting of air in the tank. Further, when the start signal of the pump unit 12 was issued from the pressure detector 33, which is one of the fire judgment devices 301, to the control panel 18, and the motor 22 was energized, the pressure maintenance operation was performed. Can be prevented from being mistaken for a fire by the disaster prevention center, etc. by transmitting the message to the outside of the disaster prevention center, etc., or by not transmitting the message itself. Further, by increasing the activation frequency of 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 the 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. It can be used to identify the cause of problems. Further, when the pressure maintenance operation is in progress and the pressure detected by the pressure detector 33 is equal to or higher than a predetermined threshold value, it is determined that no fire has occurred, and when the current value of the motor 22 is higher than the threshold value, the motor 22 is determined. It may be configured to stop the energization to. This makes it possible to prevent damage, ignition, etc. of the motor 22 due to overcurrent during pressure maintenance operation. The predetermined threshold value of the pressure described above differs depending on the site where the pump device 1 is installed, and differs depending on the specified flow rate of the sprinkler or the fire hydrant. Therefore, a predetermined threshold value of pressure can be determined for each site from the flow rate assumed when the fire extinguishing activity is performed and the pumping performance of the pump device 1.

Further, in the above-described example, an example in which the control panel 18 further stores a plurality of pressure thresholds without the auxiliary pressurizing device 101 has been described, but the present invention is not limited to this. For example, it may be configured to store the threshold value of the operation duration that is expected to recover to the auxiliary stop pressure. That is, when the pressure detected by the pressure detector 33 is lower than the predetermined threshold value, the motor 22 is energized, and the pressure maintenance operation is continued for a time equal to or longer than the threshold value of the time stored in the storage unit 43 in advance. The motor 22 may be configured to stop energization. As a result, the pressure maintenance operation can be performed without the auxiliary pressurizing device 101. The predetermined threshold value is set as, for example, the same pressure as the auxiliary starting pressure. Further, for example, instead of the threshold value of the operation duration, a timer may be electrically connected to the control unit 41 and set by this timer.

Further, in the above-mentioned example, an example in which the control panel 18 further stores a plurality of pressure thresholds and performs the pressure maintenance operation without the auxiliary pressurizing device 101 has been described. In this case, the water flow detector 314 is operated by the pressure maintenance operation. There is a risk of detecting running water. Therefore, if the start signals of the pressure detector 33 and the water flow detector 314 can be distinguished and the pressure detected by the pressure detector 33 during the pressure maintenance operation is equal to or higher than an arbitrary threshold value, the water flow detector 314 will run water. Even if it is detected, it is not judged as a fire, and the start signal from the water flow detector 314 may not be accepted.

As a result, not only water leakage but also erroneous detection of the water flow detector 314 due to improper setting of the auxiliary pressurizing device 101 can be suppressed. The above-mentioned arbitrary threshold value of the pressure differs depending on the site where the pump device 1 is installed, and differs depending on the specified flow rate of the sprinkler or the fire hydrant. Therefore, an arbitrary threshold value of pressure can be determined from the flow rate assumed when the fire extinguishing activity is performed and the pumping performance of the pump device 1.

Further, in the above-described example, an example in which the control panel 18 further stores a plurality of pressure thresholds without the auxiliary pressurizing device 101 has been described, but the pressure detected by the pressure detector 33 is lower than the lowest pressure threshold. The motor 22 may be continuously energized so that the energization of the motor 22 is not automatically stopped even after the pressure in the pipe rises. That is, when the pressure detected by the pressure detector 33 is lower than the threshold value of the lowest pressure, it is determined that a fire has occurred, and the pump unit 12 is not stopped even if the pressure in the pipe rises. Further, in the above-described example, an example in which the motor 22 is energized when the pressure detected by the pressure detector 33 is lower than the threshold of the lowest pressure and the threshold of the highest pressure has been described, but with the start of the pump unit 12. Since the pressure in the pipe rises, it cannot be determined that a fire has occurred because the pressure detected by the pressure detector 33 drops to the lowest pressure threshold. Therefore, for example, by using a timer to delay the energization of the motor for several tens of seconds, it is possible to know whether the pressure in the pipe drops rapidly to the lowest pressure threshold, and to determine whether the pressure drops due to a fire. can do. Further, when the pressure detected by the pressure detector 33 is lower than the threshold of the lowest pressure, "information that the start signal of the pump unit 12 is issued to the control panel 18 by the fire judgment device 301 due to a fire" is transmitted. In addition to transmitting to the outside of the disaster prevention center or the like, even if an overcurrent occurs, the power supply to the motor 22 may be continued without being stopped. Further, the overcurrent protection is performed except for the pressure threshold at which the pressure detected by the pressure detector 33 is the lowest, and the overcurrent protection is not performed at the pressure threshold where the pressure detected by the pressure detector 33 is the lowest. , When the pressure drops due to water leakage, etc., the pressure of the pipe is restored while preventing overcurrent, and since the startup frequency increases, sticking can be prevented, and in the event of a fire, fire extinguishing activities can be prioritized over overcurrent protection. ..

Further, in the above-described example, the configuration in which the control panel 18 has the terminal portion 48 has been described, but the terminal portion 48 has a plurality of terminals having different roles and receives start signals from different fire judgment devices 301 at different terminals. Therefore, the start signal from the fire judgment device 301 can be identified. For example, the fire judgment device 301 is divided into a device that is likely to send a start signal when there is no fire and a device that is unlikely to send a start signal when there is no fire. The terminal can be connected to the fire judgment device 301 via a signal line 99 or the like. As a result, for example, with respect to the activation of the pump unit 12 by the activation signal from the fire judgment device 301, which is likely to send the activation signal when there is no fire, such as the pressure detector 33 and the running water detector 314. Can stop the energization of the motor 22 when an overcurrent occurs, and prevent damage or ignition of the motor 22. In addition, for the activation of the pump unit 12 by the activation signal from the fire judgment device 301, which is unlikely to send the activation signal when a fire has not occurred, such as the manual activation device 312 for the fire hydrant and the remote activation device 313. Even when an overcurrent occurs, the motor 22 can be continuously energized to extinguish the fire as much as possible.

Further, in the above-described example, an example in which the current value determined to be an overcurrent when the motor 22 is energized is stored in the storage unit 43 as a threshold value is described, but as a configuration in which a threshold value for the time until the overcurrent is determined is further provided. Is also good. For example, by setting the time threshold value to be longer than the time when 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-described example, the configuration in which the pump unit 12 is manually stopped after the pump unit 12 is started by the start signal from the fire judgment device 301 has been described, but the present invention is not limited to this. For example, by sending a stop signal of the pump unit 12 to the control panel 18 from the outside such as a management center, the energization of the motor 22 may be stopped and the start signal may be released. As a result, when it is found that the start signal from the fire judgment device 301 is not due to a fire, the pump unit 12 can be stopped as soon as possible, and the motor and control panel may be damaged or ignited when an overcurrent or the like occurs. Can be prevented. Further, the energization of the motor 22 by a stop signal from the outside such as the management center may be stopped only when a problem that may cause damage or ignition of the motor or the control panel occurs. As a result, unintended stoppage of the pump unit 12 can be reduced as much as possible in response to erroneous transmission of the stop signal from the management center or the like. Further, the stop of energization of the motor 22 by the stop signal from the outside such as the management 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 likely to send the start signal even in the non-fire. You may. This makes it possible to prevent damage to the motor and control panel or ignition due to overcurrent when the possibility of fire is low.

Further, in the above-described example, the warning of the inspection operation has described the configuration in which only the first inspection operation is performed, but the warning is not limited to this. For example, the second inspection operation is also manually performed, and when the integrated value of the stop time of the pump unit 12 exceeds the fourth threshold value after the second inspection operation, the function (6) controls the operation. The unit 41 may be configured to warn at least the user's first external terminal 91, preferably the first external terminal 91 and the second external terminal 92 that the second inspection operation needs to be performed.

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 present invention is not limited to this, and there may be only one inspection operation, and three or more inspections are performed. The configuration may include operation. Further, the specific operation is not limited to the inspection operation, and the specific operation may of course include an automatic operation as long as it has at least one specific operation to be performed manually. For example, the inspection operation may further include a third inspection operation. As a specific example, in the third inspection operation, when a command to start the 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 the information and result of the inspection operation and the warning to the notification unit 44 and the external terminal 90 has been described, but the configuration is not limited to this, and the configuration for warning other devices is used. 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 above-described example, a configuration in which the deadline operation is performed during the second inspection operation is shown, but the present invention 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 can be detected by the flow rate detector 61, and the automatic on-off valve 15 can be opened and closed so as to reach a predetermined flow rate, the head at a predetermined flow rate, and the motor 22 at a predetermined flow rate. The voltage and current supplied to can be detected.

Further, in the above-mentioned example, the fifth threshold value is the deadline lift during the cut-off operation when the pump unit 12 is normal, the voltage and current supplied to the motor 22 during the cut-off operation, the rated lift during the rated load operation, and The voltage and current supplied to the motor 22 during rated load operation are not limited to this. That is, the fifth threshold value is not limited to the deadline operation and the rated load operation. For example, the fifth threshold value may be the lift when the pump unit 12 is operated at a predetermined flow rate under normal conditions, and the voltage and current supplied to the motor 22 when the pump unit 12 is operated at a predetermined flow rate.

Further, in the above-described example, the pump unit 12 is determined to be normal or not based on the fifth threshold value, but a lower sixth threshold value different from the fifth threshold value may be further provided. In 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 continues the inspection operation but is in the future. In other words, the value is set to a value closer to the normal value than the operating condition of the pump unit than the fifth threshold value, for example, a value smaller than the fifth threshold value with respect to the current. Then, when the detected detected value satisfies the fifth threshold value, the control unit 41 determines that the pump unit 12 is not normal and abnormal, and stops the pump unit 12. Further, when the detected detected value does not satisfy the sixth threshold value or satisfies the sixth threshold value and does not satisfy the fifth threshold value, the control unit 41 continues the inspection operation, and the result of the inspection operation and the like are displayed. The status of the inspection operation may be transmitted to the external terminal 90. Further, when the sixth threshold value is satisfied, information indicating that the sixth threshold value 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 of the pressure detector 33 gradually increases when the detection unit or the primary side piping of the detection unit is clogged by foreign matter such as sand, or when water leaks from the secondary side piping of the pump unit 12. The pressure drops below a predetermined pressure, and there is a risk of sending a start signal for the pump unit 12 to the control panel 18. For example, the water flow detector 314 may detect the water flow when water is leaking from the piping on the secondary side of the pump unit 12 and send a start signal of the pump unit 12 to the control panel 18. By providing the sixth threshold value, it is possible to warn the user and the 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 embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate, in which case the combined effect can be obtained. Further, the above-described embodiment includes various inventions, and various inventions can be extracted by a combination selected from a plurality of disclosed constituent requirements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, if the problem can be solved and the effect is obtained, the configuration in which the constituent requirements are deleted can be extracted as an invention.

1 ... Pump device, 11 ... Base, 12 ... Pump unit, 13 ... Discharge pipe, 13a ... Check valve, 13b ... Pressure detector, 14 ... Pressure tank, 15 ... Automatic on / off valve, 15a ... Branch pipe (drainage pipe) , 15b ... drainage port, 16 ... temperature detector, 17 ... priming tank, 17a ... piping, 17b ... relief 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 unit, 42 ... Input device, 43 ... Storage unit, 44 ... Notification unit, 45 ... Communication unit, 46 ... Control board, 47 ... housing, 48 ... terminal part, 90 ... external terminal, 91 ... first external terminal, 92 ... second external terminal, 99 ... signal line, 100 ... fire extinguishing equipment, 101 ... auxiliary pressurizing 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 ... Arrangement pipe, 211b ... Sprinkler head, 212 ... Fire hydrant, 212a ... Fire hydrant box, 212b ... Hose, 212c ... Nozzle, 213 ... Connected water pipe, 301 ... Fire judgment equipment, 311 ... Fire Alarm, 312 ... Manual starter for fire hydrant, 313 ... Remote starter, 314 ... Water flow detector, 315 ... Interlocking device for fire hydrant, 401 ... Water supply source, 501 ... Piping.

Claims (20)

A pump unit that has a motor and a pump and is connected to a pipe that is closed at the end or midway.
A storage unit that stores a threshold value for determining the current value supplied to the motor as an overcurrent,
A protection function that detects the current value energized in the motor, compares the detected current value with the threshold value, and stops energization of the motor when the detected current value exceeds the threshold value. When the start signal of the pump unit is received from the fire judgment device provided in the fire extinguishing equipment, the motor is energized even when the detected current value is equal to or higher than the threshold value. Control unit and
A pump device equipped with. The pump device according to claim 1, wherein the storage unit includes a plurality of the threshold values having different current values, and gives different warnings depending on the plurality of threshold values. When the detected current value exceeds the predetermined threshold value, the control unit stops energization of the motor as the protection function, and the detected current value is less than the predetermined threshold value. The pump device according to claim 2, wherein when the threshold value lower than the predetermined threshold value is exceeded, the electric current of the motor is maintained. When the control unit receives the start 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. The pump device according to claim 1, wherein the motor is continuously energized when the number of times exceeds a predetermined number of times or the detected current value falls below the threshold value. A plurality of the fire judgment devices are provided and classified into at least two types, and the control unit receives from the fire judgment device of a predetermined type among the plurality of fire judgment devices classified into at least two types. The pump unit is started by the start signal, and when the detected current value exceeds the threshold value, the energization of the motor is stopped and a warning is given to the outside. The pump device described in. The pump device according to claim 5, wherein the warning includes information on the fire determination device that has sent the start signal. The storage unit further has the threshold value of a plurality of different pressures.
When the pressure detected by the pressure detector is lower than the lowest threshold value, the control unit energizes the motor, and when the pressure is lower than the other threshold value, the control unit does not energize the motor and warns the outside. The pump device according to claim 1. When the control unit receives the start signal from the fire judgment device and the detected current value exceeds the threshold value, the control unit repeatedly energizes and stops the motor, energizes the motor, and energizes the motor. The pump device according to claim 5, wherein when the stop exceeds a predetermined number of times, the energization of the motor is stopped, and when the detected current value is lower than the threshold value, the energization of the motor is continued. Multiple pressure detectors are provided
When the start signal is sent to the control unit only from a part of the pressure detectors, the control unit gives a warning to the outside without energizing the motor, and the pressure detectors all the pressure detectors. The pump device according to claim 5, wherein the motor is energized when the start signal is sent to the control unit. It also has a communication unit
The pump device according to claim 7 or 9, wherein the control unit transmits information that the motor is not energized to the outside. It also has a communication unit
The pump device according to claim 1, wherein the control unit transmits information received from the fire determination device to the outside. The storage unit further has the threshold value of a plurality of different pressures.
When the pressure detected by the pressure detector provided in the fire extinguishing equipment falls below the threshold value of the predetermined pressure, the control unit energizes the motor, and the detected pressure is higher than the predetermined threshold value. The pump device according to claim 1, wherein the energization of the motor is stopped when the threshold value is exceeded. The storage unit further has the threshold value of a plurality of pressures.
When the pressure detected by the pressure detector provided in the fire extinguishing equipment falls below the predetermined threshold value, the control unit energizes the motor, and the state in which the pressure falls below the threshold value is stored in advance. The pump according to claim 1, wherein the energization of the motor is stopped when the time is continued for a time equal to or longer than the threshold value of the time stored in the unit, or when the electrically connected timer counts a preset time. apparatus. After starting the pump unit by the start signal received from the pressure detector, the control unit has the detected current value equal to or higher than the threshold value and the detected pressure equal to or higher than the threshold value of the predetermined pressure. The pump device according to claim 12 or 13, wherein the energization of the motor is stopped when there is a case. When the control unit starts the pump unit by the start signal received from the pressure detector and then receives the start signal from the water flow detector provided in the fire extinguishing facility, the detected pressure is predetermined. The pump device according to claim 12 or 13, wherein the start signal from the water flow detector is not accepted if the pressure is equal to or higher than the threshold value. The control unit has a terminal unit having a plurality of terminals.
The pump device according to claim 1, wherein the fire judgment device is classified into at least two or more types, and the fire judgment device is connected to different terminals for each type. The control unit has at least one of a terminal unit or a communication unit.
The control unit energizes the motor when it receives the start signal from the fire judgment device, and stops energizing the motor when it receives a stop signal from the outside. The pump device described. When the detected current value exceeds the threshold value and a stop signal is received from the outside, the control unit stops energization of the motor, and the detected current value exceeds the threshold value. The pump device according to claim 17, wherein the motor is continuously energized when a stop signal is received from the outside. A storage unit that has a motor and a pump and stores a threshold value for determining a current value supplied to the motor of a pump unit connected to a pipe that is closed at the end or in the middle as an overcurrent.
A protection that detects the current value energized in the motor, compares the detected current value with the threshold value, and stops energization of the motor when the detected current value is equal to or greater than the threshold value. When a start signal of the pump unit is received from a fire judgment device provided in a fire extinguishing facility, the motor is energized even when the detected current value is equal to or higher than the threshold value. And the control unit that performs
Control panel with. A storage unit that has a motor and a pump and stores a threshold value for determining a current value supplied to the motor of a pump unit connected to a pipe that is closed at the end or in the middle as an overcurrent.
A protection that detects the current value energized in the motor, compares the detected current value with the threshold value, and stops energization of the motor when the detected current value is equal to or greater than the threshold value. When a start signal of the pump unit is received from a fire judgment device provided in a fire extinguishing facility, the motor is energized even when the detected current value is equal to or higher than the threshold value. And the control unit that performs
A board on which the storage unit and the control unit are mounted,
Control board.