JPS59200668A - Inspection apparatus of fire extinguishing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

Conventionally, sprinkler fire extinguishing equipment, etc., has been inspected periodically, for example once every month, using an inspection device based on the time signal from the clock unit in order to check whether the equipment is operating normally. The pump is operated by outputting a signal, and the pump suction pressure, pump discharge pressure, pipe pressure,
The power supply voltage, motor current, etc. are detected by a detector and data processing such as recording is performed.

By the way, fire extinguishing equipment that is inspected using inspection equipment has different equipment configurations depending on the type of building, and for this reason,
Inspection equipment also requires dedicated inspection equipment tailored to the equipment condition, but standardization of inspection equipment is desired in order to improve inspection reliability and reduce costs.

However, even with the standardization of inspection equipment, some equipment may not be equipped with detectors that measure data corresponding to inspection items. However, it is difficult to put it into practical use immediately because it would require the installation of new detectors, which is expected to increase the cost.Also, even if the equipment is equipped with all the detectors that correspond to the inspection items, If some detectors are malfunctioning, the inspection process performed according to the prescribed procedure will
There were problems such as interruptions due to inability to obtain data, and problems in which necessary inspection data could not be obtained.

The present invention was made in view of these conventional problems, and even if a part of the detector is missing or the detector is malfunctioning, it can be dealt with by inspection using standardized processing. The purpose is to provide a standard inspection device for fire extinguishing equipment.

In order to achieve this objective, the present invention installs a detector that measures the pump status, the pressure in the piping, and the status of other equipment, and outputs a start signal to operate the pump when inspecting the fire extinguishing equipment, and each detection Regarding a control processing device that inputs and processes measurement data from a device according to a predetermined procedure, when proceeding to the measurement data input process of a device that does not have a detector installed, the measurement data must be manually measured. A data input standby means is provided which creates a standby state for manually operated data input processing for a certain period of time sufficient for data input, and shifts to processing of the next input data when the manual operated data input standby means has passed. (Input of artificially measured data even if measurement data by the detector cannot be obtained)
] Even if the fire extinguishing equipment is not equipped with a detector or the detector is out of order, standardized inspections can be performed, and the input standby state can be canceled after a certain period of time. By moving on to the next process, inspection time is not taken 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 in the basement BIF of a building, and in the fire pump equipment, 1 is a fire pump, and 2 is a motor that drives the fire pump. A suction pipe 4 is connected to a water source tank 3 provided under the floor.

A main pipe 5 is connected to the discharge side of the fire pump 1.
stands vertically in the building, and connects a branch pipe 7 to each floor via an alarm valve 6, and from the branch pipe 7 installed in the ceiling, there is a sprinkler head 8 installed on the ceiling. The pipe connection is made J5 and the pipe bed of the branch pipe 7 is connected to the drain pipe 10 via the control test valve 9. 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 1B is installed to control the motor 2 of the fire pump 1.

On the other hand, a flow rate test pipe 20 that returns to the water source tank 3 is provided from the discharge side of the fire pump 1, and an electric valve 22 and a flow rate side 24 are installed in this flow rate test pipe 20 to control 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 the main answer 5 is connected to the pressure tank 26 from the bottom. Compressing air with the internal pressure of the pipe 5 and applying the pressure of this compressed air inside the main pipe 5,
It has the function of 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. 1, first, the suction pressure P
A pressure gauge 30 is provided on the discharge side to detect the discharge pressure P2, and a pressure gauge 32 is provided on the discharge side to detect the discharge pressure P2.
A pressure gauge 34 is provided to detect the tank pressure, and a pressure switch 36 is provided which is activated when the tank pressure falls below a certain value.

Further, the alarm valve 6 provided 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, and an alarm valve pressure switch 38 that operates when the internal pressure of the alarm valve 6 decreases. Alarm valve pressure gauge 40 that detects the pressure on the secondary side of
A pipe bed pressure gauge 42 for detecting the pipe bed pressure is installed on the primary side of the pipe bed test valve 9 provided in the pipe bed of the branch pipe 7.
It is being

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 described. Reference numeral 44 denotes 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.

50 is a central processing unit (hereinafter referred to as C) of a microcomputer that executes predetermined inspection processing under program control.
A clock unit 52 provides a time signal to the CPU 50, and based on this time signal, inspection processing is executed at a fixed inspection cycle, for example, every month. . Further, between the CPU 50 and the input/output interface 48, a repeater transmission control section 5 is provided.
4. Each of a pulse input section 56, a control output section 58, and an analog input section 60 are provided, and the pulse input section 56 receives a pulse signal from a contact output from a detector installed in the equipment.
The analog input section 60 converts an analog signal proportional to the amount detected by a voltmeter, ammeter, pressure 1, etc., for example, a current signal of 4 to 201 TI A, into a digital signal and inputs it to the CI] IJ. 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 CPLI 50 is provided with 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.

Furthermore, for CPIJ50, a detector for measuring inspection data corresponding to the inspection process, such as a tachometer of the fire pump 1, is set to a step (if not blocked, the pump rotation speed may be artificially measured). A manual input section 72 is provided for manual operation.

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 supply in case of a power outage.

Next, to explain the equipment and detectors installed in the equipment that are connected to the processing equipment @ 44 through connectors 46a, 46b during inspection, there is a fire pump as shown in Figure 1 on the connector 46a side. The equipment and detectors installed in the facility are shown.

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. 82 is a voltmeter, and 84 is an ammeter, which detects the power supply voltage of the pump control panel 18 and the motor current and outputs it as an analog signal of 4 to 20 mA.

86 is a trouble detection device for the pump control panel 18, which detects and outputs a failure of the pump control 1fi18 during pump operation. Furthermore, 88 is a star operation detector that detects the star operation time of the motor 2, which is the pump start time, and 90 is a tachometer that detects the pump rotation speed and outputs it as an analog signal of 4 to 20 mA.

On the other hand, at the time of inspection when pump operation is performed, a specified water level is required in each of the water source tank 3, the priming tank 12, and the elevated tank shown in FIG. are installed, each liquid level alarm 92
, 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 extinguishing pump is put into a fire operation state. I try to do that.

Furthermore, the pressure indicated following the fire alarm 98〕j total 30゜32
．． 34, pressure switch 36, pressure tank drain valve 28,
Electric valve 22, flow meter 24, water supply valve 12 for priming water Wi12
The fire extinguishing equipment is as shown in Figure 1.

On the other hand, on the connector 46b side, an alarm valve pressure switch 38 and an alarm valve pressure gauge 40 provided on each floor of the fire extinguishing equipment shown in FIG.
．． Each of the pipe bed test valve 9 and the pipe bed pressure gauge 42 is connected to the connector 46b side by a repeater 102 for each floor.

FIG. 3 is an explanatory diagram showing the external appearance of the inspection device of the present invention equipped with the processing device @44 shown in FIG. 2, and is housed in a portable trunk case as shown in FIG. Inspection can be carried out by bringing the equipment into a central monitoring room of a building equipped with fire extinguishing equipment to be inspected, and connecting the signal line drawn from the equipment and detector of the fire extinguishing equipment to a connector.

To explain the configuration of the inspection device shown in FIG. 3, 104
106 is a date data display section that displays the year, month, day, hour, and minute based on the time signal, 106 is a fire display section that displays fire detection during inspection, and 108 is a display that displays troubles during inspection. This is an abnormality display section, and below these display sections are provided a monitor panel 110 that graphically displays a system diagram of the fire extinguishing equipment to be inspected, and a display explanation section 112 that explains the handling d5 of the inspection device and the display contents. Furthermore, a group of switches for inspection control is provided below the display explanation section 112 of the monitor panel 1101. This group of switches includes an operation switch group 114, a test mode setting switch group '1'
16, 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 operation switches in the embodiment shown in FIG. Voltage (ACV), current (A
A group of switches for calling up measurement data such as CI) is provided, allowing manual operation to inspect the equipment and collect measurement data.

Further, the digital display 120 includes an operation switch group 114.
It has the function of displaying the measured data when the data recall switch is operated, and the unit corresponding to the displayed data is shown. Furthermore, the mode setting switch group 116 for test 1 shows test modes No. 1 to 4, and it is possible to select any of the test modes and perform inspection processing by manual operation. A switch is provided to switch between inspection and inspection.

FIG. 5 shows the monitor panel 110 of the inspection device shown in FIG. 3, and shows the equipment 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.

Figure 6 shows test mode setting switch group 1 shown in Figure 4.
It is a flowchart showing a pump operation test by selecting No. 16 and 1 switch.

Pump operation test 1 according to the flowchart 1~ of this Fig. 6
- The pump is operated by remote control from the 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 Collect the rotation speed and pump startup time (star operation time) 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. 7, the connector 4.68 is equipped with a terminal for connecting the pump tachometer to the signal line. A dummy resistor R is connected between the i terminal and the common line as shown in the figure.

Therefore, to explain the pump operation test according to the flowchart of FIG. 6, as shown in block a, when the No. 1 switch of the test mode setting switch group 116 is operated or the inspection cycle based on the time signal is reached. The inspection will begin with the automatic start shown in block b.

When 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 AC of the pump control panel 18 is printed in block d.
V, pump suction pressure P1 measured by pressure gauge 30, pump discharge pressure P2 measured by pressure gauge 32, and pressure gauge 34.
Enter each of the tank pressures PT measured in the printer 6.
8 as the initial value. 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 out the pump start time in block f, performs M1 confirmation of start in determination block 9, and then prints the pump start time in block f. If the startup time until the motor 2 of the fire pump 1 switches from the star connection to the delta connection and enters steady operation is less than the predetermined set time T, it is assumed that the pump has been started normally and the process goes to block j. Proceed to collect measurement data during pump operation. In this block j, in addition to the measurement data of block d, the current ACI and the pump rotation speed PPM are output to the printer 68 as operating values during pump operation.

Subsequently, 30 seconds after the processing of the operating value in block j is completed, the pump stop control shown in block k is performed, and further, in block m, the data is processed as the same stop value as block d, and the data is output to the printer 68. Finally, in block n, the end time of the pump operation tests 1 to 1 is output, thereby completing the series of inspection controls.

Of course, if d5 is detected in discrimination blocks q and i and the startup is not successful or the startup time exceeds a certain time, the alarm buzzer 70 will sound in block O to indicate that there is an abnormality in the pump operation. Alert and stop the inspection.

However, block j in the flowchart of FIG.
When measuring the pump rotation speed, it is not possible to measure the pump rotation speed because the fire extinguishing equipment is not equipped with a tachometer.

Therefore, the 10 steps d, j in the flowchart in Figure 6
, m, the eighth
The data processing shown in the figure is performed for each measurement.

That is, if the process moves to measuring the pump rotation 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 rotation speed has been obtained, the process proceeds to block C, where the indicator light indicating the pump tachometer on the monitor panel 110 as shown in FIG. This notifies you that measurement data cannot be obtained, and prompts you to enter the pump rotation speed data manually. Therefore, as shown in block d, the rotational speed of the pump was manually measured in the fire extinguishing equipment, and the operating switch group 114 shown in FIG. Operate the switch indicating the RPM corresponding to the number of revolutions (4), and press the numeric keypad 118 (not shown).
Manually operate the number of pump times measured by the operation.

The manpower time for the manual data shown in block d is:
The determination block f monitors the time required for a predetermined manual operation, e.g. 1. :L If there is data input within 39, the process advances to block eI, prints out the data of the number of revolutions, and moves on to the next measurement process.

On the other hand, if no manual measurement data is input within 3 minutes in the determination block f, the data input is assumed to be zero, and the process automatically moves to the next measurement process after 3 minutes have elapsed.

Furthermore, the determination of the presence or absence of data in the determination block shown 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 one terminal of the connector 46a that connects the pump tachometer, and in data input processing, power is first supplied to block a, and then Block the detection current from the detectorb
Since the normal detected current is 4 to 20 mA, when the detected current of 4 to 20 mA is obtained in the determination block C, the process moves to input processing of block d.

On the other hand, when the detection current of 4 to 20 mA is not obtained in the discrimination block C, the process proceeds to discrimination block e, and the detection current 4 to 20 mA is not obtained.
When it is less than mA or 4 to 20 mA, it is determined that the detector has failed, and an alarm is issued in block f to indicate the detector failure.

Further, when a current of 40 mA or more is detected in the discrimination block e, the process advances to block 1 (41) and 19 is manually measured, and manual data is input.

When block 1ql is executed from [2] to block 1ql, it is determined in decision block b in FIG. 8 that there is no data in a5, and processing shifts to blocks c, d, and 1'.

Therefore, in order to perform the process shown in FIG. 9, the resistor connected to the connector terminal without the detector shown in FIG.
A tummy resistor R with a value such that a current of J or more flows through the connection of this tummy resistor R is connected, and it is determined that no measurement data can be obtained due to the detection current flowing through the connection of this tummy resistor R, and in the manual data input process, Transition j: become like.

FIG. 10 is an explanatory diagram showing an example of printer launch data obtained by the pump operation process according to the flowchart of FIG. 6.

As is clear from the data output from J), the initial measurement data of block d in FIG. (In J3, a mark 124 is added to the pump rotational speed PPM manually input in block J to distinguish it from the measured data. Therefore, the inspection device of the present invention, which has standardized inspection items, is Even if the fire extinguishing equipment does not have all the detectors corresponding to the inspection items, all the necessary inspection data can be obtained by manually inputting the data obtained by manual measurement.

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

FIG. 11 is a flowchart showing a pump performance test performed by selecting No. 2 mode of the test mode setting switch group 116 shown in FIG. This is done by flowing fire extinguishing water into the flow rate test pipe 20 through the electric valve 22 installed on the discharge side of the fire pump 1 in the fire extinguishing equipment shown in FIG. In the data measurement process shown in FIG. 8, a manual data input process based on the determination of the presence or absence of data similar to that shown in FIGS. 8 and 9 is performed.

Furthermore, FIG. 12 shows 70-CH 1--1 of the tube bed opening test when No. 3 mode is selected in the test mode setting switch group 116 of FIGS. 3 and 4, and in this managed opening test, Open the LC pipe management stop valve 9 installed at each corner to create the same condition as when the sprinkler head 8 is activated, and press the pressure switch 36 installed at the pressure tank 26.
The pump is operated by the operation of block a and b1 in Fig. 12.
．． When measuring data at b2°C, the presence or absence of measurement data is determined in the same way as shown in the flowcharts in Figures 8 and 9. If measurement data cannot be obtained, manual data input processing is performed within a predetermined time. After waiting, control is performed to move on to the next data measurement process.

Next, the present invention will be described in detail: 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 A control processing device that outputs measurement data from each detector and processes the data is installed. Since a data input processing standby means is provided that shifts to data input processing from a detector installed in the next device after a certain period of time during which data input operation is possible has elapsed,
Even for fire extinguishing equipment that does not have some detectors that correspond to the data measurement items sent to the inspection equipment, the data necessary for inspection can be obtained by inputting manually measured data, and the equipment of the fire extinguishing equipment can be improved. The composition is different; b
Since common inspection data can be obtained, the reliability of inspection can be improved, and the cost of the inspection device can be reduced due to the increased versatility 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 before moving on to the next data measurement process. Manual input can be performed without interrupting control. To prevent inspection time from becoming too long by keeping the processing time for a series of inspection controls within a range that does not exceed a certain period of time.

Furthermore, even if the fire extinguishing equipment is equipped with all the detectors necessary for inspection, if a detector malfunctions, it is necessary to identify the malfunction.
Since the C alarm is issued, you can obtain the measurement data of the faulty detector as long as you input manual data within a certain period of time, just as if no detector was installed, so even if the detector is faulty, Appropriate inspection controls can be carried out.

[Brief explanation of the drawing]

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 detectors, and FIG. L An explanatory diagram of the external appearance of the inspection device of the present invention.
The figure is an explanatory diagram of the monitor panel in Figure 3, Figure 6 is a flowchart diagram showing a pump operation test according to the present invention, and Figure 7 is a diagram showing the connection of a dummy resistor to the connector when no detector is installed. FIG. 8 is a flowchart showing an example of the manual input process performed in the data measurement shown in FIG. 6; FIG. 9 is a flowchart showing details of the process for determining the presence or absence of data input shown in FIG. 8; 1st
0 is an inspection of FIG. 6. FIG. 11 is a flowchart 8 showing a pump performance test according to the present invention, and FIG. 12 is a flowchart 1 showing a tube bundle opening test 1 according to the present invention. 1: Fire extinguishing pump 2: Motor 3: Water tank 4: Suction pipe 5: Main pipe 6: Alarm valve 7; Branch pipe 8 Varnish sprinkler head 9: Stainless steel 1 to valve 10: Drain pipe 12: II'ybi Water tank 14: Water supply valve 16: Drain valve] ε3 Pump start @ board 20: Flow rate test piping 22: Electric valve 24: Flow meter 26: Pressure tank 28: Tank drain valve 30: Pressure gauge Pump suction pressure P'1) 32 : Pressure gauge (
Pump discharge pressure P2) 34: Pressure gauge (tank pressure 1] T') 36: Tank pressure switch 38: Alarm valve pressure switch 40: Alarm valve pressure gauge 42: Pipe bed pressure gauge 44: Processing devices 46a, 46b: = + connector 48 two-person output interface 50: CPU (central processing unit (~)) 54: repeater transmission control section 56: pulse human power section 5B-control output section 60: analog human power section 62: message display section 64 system status display section 66 : Operation unit 68 - Fprinter 70: Alarm block IJ' - 78: Starting device 80: Stopping device 82; Voltage network 84: Ammeter 86: Trouble detection device 8B - Operation detector 90: Tachometer 92, 94, 96: Liquid level alarm 98-fire alarm 100: motorized valve with amperage meter) 102-repeater 104: date data display section 106: fire display section 108: abnormality display section 110: monitor panel 112: display explanation section 114: Operation switch group 116: Test mode setting switch group 118: Numeric keypad 120: Digital display Patent applicant Hochiki Co., Ltd. Agent Patent attorney Susumu Takeuchi 6 Pjf Figure 8 Figure 9

Claims (1)

[Scope of Claims] 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 that includes at least connecting piping, 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 and inputs and processes the measurement data from each of the detectors, and the control processing device is capable of processing data of equipment not provided with the detector. is a fire extinguishing equipment characterized by being equipped with a data input processing standby means that shifts to data input processing from a detector installed in the next device after a certain period of time has elapsed to enable manual input of m11 constant data. inspection equipment.