JPH0422593B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inspection device for fire extinguishing equipment that periodically automatically inspects fire extinguishing equipment that sprays fire extinguishing water supplied under pressure by pump operation from a fire extinguishing head.

Traditionally, sprinkler fire extinguishing equipment, etc.
In order to check whether the equipment is operating normally, an inspection device is used to output an inspection signal periodically, for example every month, based on the time signal from the clock unit, and the pump is operated. suction pressure,
Pump discharge pressure, pipe internal pressure, power supply voltage, motor current, etc. are detected by detectors and data processing such as recording is performed.

By the way, fire extinguishing equipment that is inspected by inspection equipment has different equipment configurations depending on the type of building, and therefore, the inspection equipment also requires a dedicated inspection equipment that matches the equipment condition, but the reliability of the inspection is Standardization of inspection equipment is desired in order to reduce costs.

However, even if inspection equipment is standardized, some equipment may not be equipped with detectors that measure data corresponding to inspection items, and such fire extinguishing equipment may not be equipped with detectors that measure data corresponding to inspection items. In this case, it is difficult to immediately put it into practical use because new detectors will need to be installed, which is expected to increase costs. However, if some detectors are malfunctioning, the inspection process performed according to the prescribed procedure may be interrupted due to the inability to obtain data, or the necessary inspection data may not be obtained. It was hot.

The present invention has been made in view of such conventional problems, and even if a part of the detector is not installed or the detector is malfunctioning, it can be handled by inspection using standardized processing. The purpose of the present invention is to provide an inspection device for fire extinguishing equipment that can improve the reliability of inspection and reduce costs through standardization.

To achieve this objective, the present invention outputs a start signal to operate the pump when inspecting fire extinguishing equipment equipped with detectors that measure the pump status, the pressure in the piping, and the status of other equipment, and outputs a start signal to operate the pump, and Regarding a control processing device that inputs measurement data from a device according to a predetermined procedure and processes the data, when proceeding to the measurement data input process of a device that is not equipped with a detector, the measurement data must be manually measured and input. A data input standby means is provided, which creates a standby state for input processing by manual operation for a certain period of time sufficient to allow the detector to move, and shifts to processing of the next input data when the data input wait time by manual operation has elapsed. Even if measurement data cannot be obtained, it is possible to input and process artificially measured data, and even if the fire extinguishing equipment is not equipped with a detector or the detector is malfunctioning, standardized inspections can be performed. Furthermore, after a certain period of time, the input standby state is canceled and the next process is started, so that the inspection time does not take longer than necessary.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is an explanatory diagram showing an example of fire extinguishing equipment in which the inspection device of the present invention is used. First, to explain the configuration, a fire pump equipment is installed on the basement floor of the building, and in the fire pump equipment, 1 is a fire pump, 2 is a motor that drives the fire pump,
A suction pipe 4 is connected to the fire pump 1 from a water source tank 3 provided under the floor.

A main pipe 5 is connected to the discharge side of the fire pump 1, and the main pipe 5 stands up vertically in the building, and is connected to a branch pipe 7 via an alarm valve 6 on each floor. A branch pipe 7 is connected to a sprinkler head 8 installed on the ceiling, and the end of the branch pipe 7 is connected to a drain pipe 10 via a test valve 9 at the end of the pipe. .
In addition, a priming water tank 12 is connected to the discharge side of the fire pump 1 via piping to constantly supply priming water, and water is supplied to this priming tank 12 via a water supply valve 14. A drain pipe is connected to the water source tank 3 from the lower part of the water tank 12 via a drain valve 16.

Further, on the left side of the fire pump 1, a pump control panel 18 is installed to control the motor 2 of the fire pump 1.

On the other hand, a flow rate test pipe 20 is provided from the discharge side of the fire pump 1 to return to the water source tank 3, and this flow rate test pipe 20 is equipped with an electric valve 22 and a flow meter 24 to measure the discharge flow rate of the fire pump 1. The measurements enable pump performance testing. Furthermore, a pressure tank 26 is installed on the right side of the fire pump 1, and a main pipe 5 is connected to the pressure tank 26 from below. It has a function of compressing air at the internal pressure of the main pipe 5, applying the pressure of this compressed air inside the main pipe 5, and maintaining the internal pressure of the main pipe 5 above a certain pressure. Note that a drain valve 28 is provided below the pressure tank 26 to release the tank pressure.

Next, to explain the various detectors installed in the fire extinguishing equipment shown in FIG. A pressure gauge 32 is provided to detect the pressure. Further, the pressure tank 26 is provided with a pressure gauge 34 that detects the pressure inside the tank as tank pressure PT, and is also provided with a pressure switch 36 that is activated when the tank pressure falls below a certain value.

Furthermore, the alarm valve 6 installed on each floor includes an alarm valve pressure switch 38 that operates when the sprinkler head 8 is activated and fire extinguishing water flows into the branch pipe 7 and the internal pressure of the alarm valve 6 decreases. An alarm valve pressure gauge 40 is provided to detect the pressure on the secondary side, and a pipe end pressure gauge 42 is provided on the primary side of the pipe end test valve 9 provided at the end of the branch pipe 7 to detect the pipe end pressure. ing.

Note that the explanatory diagram in FIG. 1 does not show all the detectors used in the inspection device of the present invention, and other detectors include, for example, a voltmeter that detects the voltage and current of the pump control panel 18, and a current detector. Includes total, etc.

FIG. 2 is a block diagram showing an embodiment of the inspection device according to the present invention, and also shows the equipment installed in the fire extinguishing equipment to be inspected and the detectors installed in each equipment.

First, the configuration will be explained. Numeral 44 is a processing device constituting the inspection device, and in this embodiment, automatic inspection is carried out under program control by a microcomputer.

That is, the equipment and detectors in the fire extinguishing equipment shown in FIG. Reference numeral 50 denotes a central processing unit (hereinafter referred to as CPU) of a microcomputer that executes predetermined inspection processing under program control.A time signal is given to the CPU 50 by a clock unit 52, and a constant time is determined based on this time signal. inspection cycle,
For example, inspection processing is executed every month. Further, a repeater transmission control section 54, a pulse input section 56, a control output section 58, and an analog input section 60 are provided between the CPU 50 and the input/output interface 48, and the pulse input section 56 is provided in the equipment. The analog input section 60 has the function of inputting a pulse signal from a contact output from a detector to the CPU 50, and the analog input section 60 inputs an analog signal proportional to the detected amount from a voltmeter, ammeter, pressure gauge, etc., e.g.
Converts a 20mA current signal into a digital signal.
It has a function of inputting to the CPU 50. Further, the control output unit 58 has a function of outputting a pump start signal, a pump stop signal, and control signals for various equipment necessary for inspection in accordance with the inspection processing procedure in the CPU 50.

Furthermore, the CPU 50 includes a message display section 62,
A system status display section 64, an operation section 66, a printer 68 for outputting inspection data, and an alarm buzzer 70 that is activated when an abnormality is detected during inspection are provided.

Furthermore, if the CPU 50 is not provided with a detector for measuring inspection data corresponding to inspection processing, such as a tachometer for the fire pump 1, the pump rotation speed may be artificially measured. Manual input section 7 for inputting by manual operation
2 is provided.

Note that 74 is a power supply unit for the processing device 44, and 76 is a battery unit that serves as a backup power source in case of a power outage.

Next, the connectors 46a and 46 are connected to the processing device 44.
To explain the equipment and detectors installed in the equipment connected by b to be controlled during inspection, first, the equipment and detectors installed in the fire pump equipment of FIG. 1 are shown on the connector 46a side.

That is, as a device and a detector to be inspected and controlled in the fire pump equipment, 78 is a starting device of the pump control panel 18, which starts the motor 2 of the fire pump 1 in response to a starting signal from the processing device 44.
A stop device 80 stops the operation of the fire extinguishing pump 1 upon receiving a stop signal from the processing device 44. Reference numeral 82 indicates a voltmeter, and reference numeral 84 indicates an ammeter, which detects the power supply voltage of the pump control panel 18 and motor current and outputs them as analog signals of 4 to 20 mA. 8
Reference numeral 6 denotes a trouble detection device for the pump control panel 18, which detects and outputs a trouble in the pump control panel 18 during pump operation. Furthermore, 88 is a star operation detector that detects the star operation time of motor 2, which is the pump start time, and 90 is a star operation detector that detects the pump rotation speed.
This is a tachometer that outputs as an analog signal of ~20mA.

On the other hand, when inspecting pump operation,
Since a specified water level is required in each of the water source water tank 3, priming water tank 12, and elevated water tank shown in FIG. 1, liquid level alarms 92, 94, and 96 are provided. 94 and 96 generate a liquid level alarm output as a contact signal when an abnormality in the liquid level is detected. Further, 98 is a fire alarm, and by inputting a fire signal from the fire alarm 98 to the processing device 44, when a fire is detected during inspection, the inspection is stopped and the fire pump is put into a fire operation state. That's what I do.

Furthermore, the pressure gauge 3 shown following the fire alarm 98
0, 32, 34, the pressure switch 36, the drain valve 28 of the pressure tank, the electric valve 22, the flow meter 24, and the water supply valve 12 of the priming tank 12 are as shown in the fire extinguishing equipment of FIG.

On the other hand, on the connector 46b side, the alarm valve pressure switch 38, alarm valve pressure gauge 40, pipe end test valve 9, and pipe end pressure gauge 42 provided on each floor of the fire extinguishing equipment shown in Fig. 1 are relayed for each floor. The connector 46b is connected to the connector 46b.

FIG. 3 is an explanatory diagram showing the appearance of the inspection device of the present invention equipped with the processing device 44 shown in FIG.
As shown in Figure 3, it is stored in a portable trunk case, and is carried into a central monitoring room of a building equipped with fire extinguishing equipment to be inspected, and the signal wires drawn from the equipment and detectors of the fire extinguishing equipment are inspected. Inspection can be performed by connecting the connector.

To explain the configuration of the inspection device shown in FIG. 3, 104 is a date data display unit that displays the year, month, day, hour and minute based on a time signal, and 106 is a fire display unit that displays fire detection during inspection. , 108
is an abnormality display section that displays troubles during inspection, and below these display sections there is a monitor panel 110 that graphically displays a system diagram of the fire extinguishing equipment to be inspected, and a monitor panel 110 that explains the handling of the inspection equipment and the contents of the display. A display explanation section 112 is provided, and below the monitor panel 110 and the display explanation section 112,
A group of switches for inspection control is provided. This switch group includes an operation switch group 114, a test mode setting switch group 116, a numeric keypad 118, and a digital display 120. Furthermore, a printer 122 is provided on the right side of the case.

FIG. 4 is an explanatory diagram showing the operating switches in the embodiment of FIG. 3. In the operating switch group 114, equipment such as pumps,
A group of operation switches are provided to operate electric valves, etc., and a group of switches are provided to call up measurement data such as voltage (ACV), power supply (ACI), etc., and can be operated manually to inspect equipment and collect measurement data. We are making it possible to do this.

Further, the digital display 120 has a function of displaying measured data when a data recall switch in the operation switch group 114 is operated, and indicates a unit corresponding to the displayed data. Furthermore, No. 1 in the test mode setting switch group 116
-4 test modes are shown, and any one of the test modes can be selected to perform inspection processing by manual operation, and a switch is provided for switching between manual inspection and automatic inspection.

FIG. 5 shows the monitor panel 110 of the inspection device shown in FIG. 3, and shows the setting configuration and piping system of the fire extinguishing equipment using the inspection device of the present invention, for example, the fire extinguishing equipment shown in FIG. Indicator lamps are provided on the equipment and detectors that are displayed and activated during inspection, and the indicator lamps for activated equipment or detectors that are inputting measurement data are turned on.

Next, control by the inspection device of the present invention shown in the embodiment of FIG. 2 will be explained.

FIG. 6 is a flowchart showing a pump operation test performed by selecting the No. 1 switch of the test mode setting switch group 116 shown in FIG. 4.

In the pump operation test according to the flowchart shown in Fig. 6, the pump is operated by remote control from an inspection device, and in this operation test, with the discharge side of the pump closed, voltage, current, pump suction pressure P1, Pump discharge pressure P2, tank pressure PT, pump rotation speed, and pump startup time (star operation time) are collected as inspection data.

Assuming that the fire extinguishing equipment to be inspected is not equipped with a tachometer to detect the pump rotation speed, as shown in FIG.
A dummy resistor R is connected between the terminal and the common line as shown in the figure.

Therefore, to explain the pump operation test according to the flow chart of FIG. The inspection will now start with the automatic start shown in block b.

When the control of the pump operation test is started in this way, the date and time of the inspection are printed on the printer 68 in block C, and then the voltage ACV of the pump control panel 18 is measured with the pressure gauge 30 in block d. Each of the pump suction pressure P1, the pump discharge pressure P2 measured by the pressure gauge 32, and the tank pressure PT measured by the pressure gauge 34 are input and printed on the printer 68 as initial values. When the printing of the initial value of block d is completed, the CPU 50 performs the pump start control shown in block e, prints the pump start time in block f, confirms the start in determination block g, and then prints the pump start time in block h. If the startup time until moder 2 of fire pump 1 switches from star connection to delta connection and enters steady operation is less than the predetermined set time T, it is assumed that the pump has started normally and the process proceeds to block j. Collect measurement data during pump operation. In this block j, in addition to the measurement data of block d, the current
The ACI and pump rotation speed RPM are output to the printer 68 as operating values during pump operation.

Subsequently, 30 seconds after the processing of the operating value of block j is completed, pump stop control shown in block k is performed, and furthermore, data processing is performed in block m with the same stop value as block d, and the printer 6
8, and finally the end time of the pump operation test is issued in block n, thereby completing the series of inspection controls.

Of course, if the startup is not successful or the startup time exceeds a certain time in determination blocks g and i, the alarm buzzer 70 will sound in block o to notify that there is an abnormality in pump operation. and stop the inspection.

However, in measuring the pump rotation speed in block j in the flowchart of FIG. 6, the pump rotation speed cannot be measured because the fire extinguishing equipment is not equipped with a tachometer.

Therefore, in processing the measurement data in each of blocks d, j, and m in the flowchart of FIG. 6, the data processing shown in FIG. 8 is performed for each measurement.

That is, if the process moves to measuring the pump rotational speed in block a, the presence or absence of measurement data is determined in determination block b. At this time, since no measurement data of the rotational speed has been obtained, the process proceeds to block c, where the display value indicating the pump tachometer on the monitor panel 110 as shown in FIG.
The intermittent ringing of the pump notifies you that measurement data cannot be obtained, and prompts you to input the pump rotation speed data manually. Therefore, as shown in block d, we manually measured the pump rotation speed in the pump fire extinguishing equipment.
The pump rotational speed was measured by operating the operation switch group 114 shown in FIG. 3, that is, the switch indicated in RPM corresponding to the pump rotational speed shown in the operation switch group 114 of FIG. 4, and by operating the numeric keypad 118 shown in FIG. Enter manually.

The input time of the manual data shown in block d is monitored by a discrimination block f, and if data is input within a predetermined time required for manual operation, for example, 3 minutes, the process advances to block e and the pump rotation speed is changed. After printing the data, move on to the next measurement process.

On the other hand, if no manual measurement data has been input within 3 minutes in determination block f, it is assumed that no data has been input, and the process automatically moves to the next measurement process when 3 minutes have elapsed.

Furthermore, the determination of the presence or absence of data in determination block b in the flowchart of FIG. 8 is performed according to the flowchart shown in FIG.

That is, as shown in FIG. 7, a dummy resistor R is connected to the i terminal of the connector 46a that connects the pump tachometer, and in data input processing, power is first supplied to block a, and then The detected current from the detector is detected by block b, and since a normal detected current is 4 to 20 mA, when a detected current of 4 to 20 mA is obtained in discrimination block c, the process shifts to input processing of block d.

On the other hand, if a detection current of 4 to 20 mA is not obtained in judgment block c, the process proceeds to judgment block e, and if the detection current is less than 4 mA or 4 to 20 mA, it is determined that the detector is malfunctioning, and block f is used to detect the detector. Issues an alarm indicating a failure. Furthermore, the discrimination block e
When a current of 40 mA or more is detected, the process proceeds to block g, where manual data obtained by manual measurement is input. That is, when block g has been processed, it is determined that there is no data in judgment block b in FIG. 8, and the process shifts to blocks c, d, and f.

Therefore, in order to perform the processing shown in FIG.
As a resistor to be connected to the connector terminal shown in the figure that does not have a detector, a dummy resistor R with a value that allows a current of 40 mA or more to flow when power is supplied to the detector is connected, and this dummy resistor R is connected. It is determined by the detection current that flows that no measurement data can be obtained, and the process proceeds to manual data input processing.

FIG. 10 is an explanatory diagram showing an example of printer ejection data obtained in a pump operation test according to the flowchart of FIG. 6.

As is clear from this launch data, the 6th
The initial value of block d in the figure, the operating value of block d,
The measured data serving as the stop value for block m and block m are sequentially printed out, and a mark 124 is added to the pump rotation speed RPM manually input in block j to distinguish it from other measured data. Therefore, the inspection device of the present invention, which has standardized inspection items, can be used even in fire extinguishing equipment that does not have all the detectors corresponding to the inspection items, by manually inputting the data obtained by manual measurement. All inspection data can be obtained.

In addition, even if a detector fails, the data of the failed detector can be measured using a similar manual operation, and the inspection data can be processed without interrupting the inspection by performing manual input operations within a certain period of time. I can do it.

FIG. 11 is a flowchart showing a pump performance test performed by selecting the No. 2 mode of the test mode setting switch group 116 shown in FIGS. This is done by opening the electric valve 22 provided on the discharge side of the fire pump 1 in the fire extinguishing equipment shown in Figure 1 and letting fire extinguishing water flow through the flow rate test pipe 20, as shown in blocks a, b, c, and d. In the data measurement process, a manual data input process is performed based on the determination of the presence or absence of data similar to that shown in FIGS.

Furthermore, FIG. 12 is a flowchart of the tube end open test when No. 3 mode is selected in the test mode setting switch group 116 of FIGS. 3 and 4,
In this pipe end opening test, the pipe end test valve 9 installed on each floor is opened and the sprinkler head 8 is opened.
creates the same condition as when the pressure tank 2 is activated.
The pump is operated by the operation of the pressure switch 36 provided at 6, and when measuring data in blocks a, b1, b2, and c in FIG. If measurement data cannot be obtained, control is performed to wait for manual data input processing within a predetermined time and then proceed to the next data measurement processing.

Next, the effects of the present invention will be described. A pump that supplies fire extinguishing water under pressure, a drive device that operates this pump, a fire extinguishing head that sprays pressurized water from the pump, and a combination of the fire extinguishing head and the pump. In fire extinguishing equipment that is equipped with at least piping that connects the A control processing device is installed that outputs measurement data from each detector and processes the data by inputting the measurement data from each detector.This control processing device handles manual measurement data processing when processing equipment that is not equipped with a detector. Since we have provided a data input processing standby means that moves to data input processing from a detector installed in the next device after a certain period of time during which input operations can be performed, some of the detectors corresponding to the data measurement items in the inspection device are Even for fire extinguishing equipment that is not equipped, the data necessary for inspection can be obtained by inputting manually measured data, and common inspection data can be obtained even if the equipment configuration of the fire extinguishing equipment is different. The reliability of inspection can be improved, and the cost of the inspection device can be reduced due to its versatility through standardization of the inspection device.

In addition, when it is determined that no measurement data has been input, the system waits for manual data input for a predetermined period of time and then moves on to the next data measurement process. To prevent an inspection time from becoming long by keeping the processing time for a series of inspection controls within a range not exceeding a certain time even if manual input can be performed without interrupting the process.

Furthermore, even if the fire extinguishing equipment is equipped with all the detectors necessary for inspection, if a detector malfunctions, the malfunction will be identified and an alarm will be issued, so it will be the same as if no detectors were installed. If manual data is input within a certain period of time, measurement data of a failed detector can also be obtained, and appropriate inspection control can be performed even if the detector is malfunctioning.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an example of fire extinguishing equipment in which the inspection device of the present invention is used, FIG. 2 is a block diagram showing an embodiment of the present invention together with equipment and a detector, and FIG. FIG. 4 is an explanatory diagram of the operating switch section in the embodiment shown in FIG. 3, FIG. 5 is an explanatory diagram of the monitor panel in FIG. 3, and FIG. Figure 7 is an explanatory diagram showing the connection of a dummy resistor to the connector when no detector is installed, and Figure 8 is a manual for the data measurement shown in Figure 6. A flowchart showing an example of the input process, FIG. 9 is a flowchart showing details of the process of determining whether or not data has been input in FIG. 8, and FIG. 10 shows the printer obtained in the inspection process of FIG. FIG. 11 is a flow chart showing a pump performance test according to the present invention, and FIG. 12 is a flow chart showing a tube end opening test according to the present invention. 1: Fire pump, 2: Motor, 3: Water tank,
4: Suction pipe, 5: Main pipe, 6: Alarm valve, 7: Branch pipe, 8: Sprinkler head, 9: Test valve at end of pipe, 10: Drain pipe, 12: Priming water tank, 14: Water supply valve, 16: Drainage Valve, 18: Pump start panel, 20:
Flow rate test piping, 22: Electric valve, 24: Flow meter, 2
6: Pressure tank, 28: Tank drain valve, 30: Pressure gauge (pump suction pressure P1), 32: Pressure gauge (pump discharge pressure P2), 34: Pressure gauge (tank pressure
PT), 36: Tank pressure switch, 38: Alarm valve pressure switch, 40: Alarm valve pressure gauge, 42: Pipe end pressure gauge, 44: Processing device, 46a, 46b: Connector, 48: Input/output interface, 50:
CPU (central processing unit), 54: Repeater transmission control section, 56: Pulse input section, 58: Control output section,
60: analog input section, 62: message display section, 64: system status display section, 66: operation section,
68: Fprinter, 70: Alarm buzzer, 78: Starting device, 80: Stopping device, 82: Voltmeter, 84:
Ammeter, 86: Trouble detection device, 88: Operation detector, 90: Tachometer, 92, 94, 96: Liquid level alarm, 98: Fire alarm, 100: Ammeter (motorized valve), 102: Relay , 104: Date data display section, 106: Fire display section, 108: Abnormality display section, 110: Monitor panel, 112: Display explanation section, 1
14: Operation switch group, 116: Test mode setting switch group, 118: Numeric keypad, 120: Digital display.

Claims (1)

[Scope of Claims] 1. A pump that pressurizes fire extinguishing water, a drive device that operates the pump, a fire extinguishing head that sprays pressurized fire extinguishing water from the pump, and a fire extinguishing head and the pump. A fire extinguishing equipment comprising at least piping that connects the fire extinguishing equipment, comprising: a detector that measures the condition of the pump, the pressure in the piping, and the status of other equipment; and a drive that operates the pump when inspecting the fire extinguishing equipment. A control processing device is provided which outputs a start signal to the device, inputs measurement data from each of the detectors, and processes the data; An inspection device for fire extinguishing equipment, characterized in that it is equipped with data input processing standby means that shifts to data input processing from a detector provided in the next device after a certain period of time has elapsed to allow manual input of measurement data.