JP3412747B2 - Shipping mode release method, gas leak detection device, and electronic gas meter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid supply method, and more particularly to canceling a shipping mode for deactivating a leak detection function at the time of factory shipment of an apparatus having a leak detection function for detecting an abnormal flow rate of a fluid. For releasing the shipping mode.

The present invention also relates to a security device,
In particular, the supply abnormality of the fluid supplied to the secondary fluid supply system connected to the downstream side of the fluid cutoff valve is detected to shut off the fluid supply, and the fluid is supplied to the secondary fluid supply system. The present invention relates to a leak detection device having a function of detecting that a fluid supply abnormality has been released and restoring the fluid supply.

The invention also relates to a gas meter, in particular
The amount of gas used is measured, the abnormal supply of the gas supplied to the secondary side gas supply system connected to the downstream side of the gas cutoff valve is detected as a cutoff event, and the gas supply is cut off. The present invention relates to an electronic gas meter that detects that a supply abnormality of a gas supplied to a side gas supply system has been released and restores the gas supply.

[0004]

2. Description of the Related Art As a shipping mode processing method which has been conventionally executed in a fluid leak detection device or a gas meter of this type, there is, for example, the one shown in the flowchart of FIG.

Fluid leak detector or gas meter (specifically, LP gas leak detector or electronic gas meter)
In general, a battery is built in for supplying the device with operating power necessary for operating the device. Specifically, the initial operation of the fluid shutoff valve (specifically, the gas shutoff valve) and fluid sensor (specifically, the gas pressure sensor) provided in the fluid leakage detection device or the gas meter is tested at the time of factory shipment. It also has a built-in battery to supply the operating power necessary to maintain the microprocessor's sleep mode between factory shipment and field installation, and to retain the setting data in the memory.

On the other hand, during the factory shipment mode in the shipment mode processing method shown in FIG. 5, in order to minimize the electric power supplied by such a battery, leakage detection performed by using a fluid sensor with relatively large power consumption. It had stopped working.

In order to cancel such a factory shipment mode (execute the shipment mode cancellation process), first, as shown in FIG. 5, a test switch provided in the fluid leakage detection device or the gas meter is operated ( If there is an input from the test switch (step Q1) (“input present” in step Q2), test shutoff is executed (step Q3),
After executing the test cutoff, the cutoff recovery (step Q4) that executes the cutoff recovery operation, and the safety confirmation after the cutoff recovery (step Q4)
5) After the completion of the return safety confirmation, the shipping mode was released (step Q6), and the leak detection function was started (step Q7).

[0008]

However, the fluid leak detection device or gas meter using such a conventional shipping mode processing method is installed in the factory shipping mode in which the leak detecting function is stopped at the time of factory shipping. Even if it is, the leak detection function does not operate, and the amount of fluid used for the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve (specifically, Since the amount of gas used) can be measured, the fluid can be used in the fluid device (specifically, the gas device) connected to the secondary side fluid supply system.

Therefore, in the fluid leakage detection device or the gas meter using the conventional shipping mode processing method, when the shipping mode cancellation process is not performed (specifically, when the shipping mode cancellation process is not performed when the device is installed). ), There is a possibility that the fluid leak detection device or the gas meter may measure the fluid usage amount while the leak detection function is stopped, and the fluid leak may not be detected.

An object of the present invention is to solve such a conventional problem. Firstly, the leakage detection function is not provided at the time of factory shipment of an apparatus having a leakage detection function for detecting an abnormal flow rate of a fluid. A method of releasing a shipping mode for releasing a shipping mode to be activated, the leak detection activating the leak detection function by canceling the shipping mode when an instruction of a shipping mode release command is received during the operation of the shipping mode. Monitor the fluid pressure in the device during the operation of manual selection mode and shipping mode,
Equipped with a leak detection automatic release mode that activates the leak detection function that is in an inactive state when the fluid pressure being monitored exceeds a predetermined pressure, and leak detection with an intermittent operation cycle or a fixed sampling cycle during operation in shipping mode Monitoring the startup of the manual selection mode and activating the leakage detection manual selection mode when the startup of the leakage detection manual selection mode is detected, and the process of activating the leakage detection manual selection mode with intermittent operation cycle or constant sampling cycle during the shipment mode operation. The leak detection function is stopped at the time of factory shipment by adopting a logic configuration that monitors the fluid pressure and activates the leak detection automatic release mode when the monitored fluid pressure exceeds a predetermined pressure. Even if the equipment is installed in the factory shipment mode that is already set, the leak detection function is automatically activated when the fluid pressure being monitored exceeds the predetermined pressure. Turned into it possible to operate with,
When the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be measured under the leakage detection environment, that is, when the shipping mode release processing is not performed. Even if there is, it is possible to automatically return the leak detection function, and to provide a shipping mode release method that allows the fluid leak detection device or the electronic gas meter to measure the fluid usage amount based on the fluid leak detection operation. Has an aim.

Secondly, the supply abnormality of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve is detected, the supply of the fluid is shut off, and the secondary side fluid supply is performed. In a leakage detection device having a function of detecting that the supply abnormality of the fluid supplied to the system has been released and restoring the supply of the fluid, a shipping mode release switch that generates a shipping mode release command that instructs the release of the shipping mode And a fluid sensor that generates a pressure signal by monitoring the fluid pressure at a predetermined position in the device during shipment mode operation, and a leak detection function at the time of factory shipment of the device that has a leak detection function that detects an abnormal flow rate of the fluid. And a shipping mode control means for generating a shipping mode control signal for controlling deactivation / activation, and a leak detection device for canceling the shipping mode when receiving a shipping mode cancellation command during the operation of the shipping mode. Leak detection Manual selection means that generates a leak detection manual selection mode signal that directs execution of the leak detection manual selection mode, and fluid pressure is monitored based on the pressure signal during operation in the shipping mode. When the fluid pressure exceeds a predetermined pressure, the leak detection automatic release means that activates the leak detection automatic release mode that activates the leak detection function that is inactive is generated. It has a battery that supplies the power necessary for operation, and the shipment mode release switch, fluid sensor, shipment mode control means, leak detection manual selection means, and leak detection automatic release means start the leak detection function at least after the factory shipment. Up to the period of time, the leak detection manual selection means operates by using the electric power received from the battery, the intermittent operation cycle or the constant sampling period during the operation in the shipping mode. It is configured to monitor the activation of the leak detection manual selection mode at regular intervals and activate the leak detection manual selection mode when the activation of the leak detection manual selection mode is detected. By monitoring the fluid pressure inside the device with an intermittent operation cycle or a fixed sampling cycle, and activating the leak detection automatic release mode when the monitored fluid pressure exceeds a predetermined pressure, a hardware configuration is provided. The leak detection function is automatically activated when the fluid pressure being monitored exceeds the specified pressure even when installed in the factory shipment mode where the leak detection function is stopped at the time of factory shipment. It is possible to operate and measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system that is connected to the downstream side of the fluid cutoff valve in a leak detection environment. It can be executed, that is, even if the shipping mode release processing is not performed, the leak detection function can be automatically restored, and fluid leakage can be detected based on the operation to detect fluid leakage. The purpose is to provide a device.

Thirdly, the gas supply is measured by measuring the amount of used gas and detecting an abnormal supply of the gas supplied to the secondary side gas supply system connected to the downstream side of the gas cutoff valve as a cutoff event. In the electronic gas meter that shuts off the gas supply and restores the supply of the gas by detecting that the supply abnormality of the gas supplied to the secondary side gas supply system has been released, a leakage detection device that detects the gas as a fluid A gas cutoff means for generating a gas cutoff signal for executing a gas cutoff control for executing a gas cutoff control to cut off the gas supply to the secondary side gas supply system when an event is detected, and a gas cutoff means Combustion control means for generating a combustion control signal for operating the connected gas equipment to execute combustion control; and a gas supply path, which supplies gas in the gas supply path in response to the gas cutoff signal. Temporarily shut off With a hardware configuration that includes a shutoff valve, the fluid pressure being monitored exceeds the specified pressure even when installed in the factory shipment mode where the leak detection function is stopped at the factory. In this case, the leak detection function can be automatically activated and activated, and the amount of fluid used of the fluid supplied to the secondary fluid supply system connected downstream of the fluid cutoff valve can be measured. It can be executed in a leak detection environment, that is, even if the shipping mode release processing is not performed, the leak detection function can be automatically restored and the fluid usage is measured under the operation of detecting the fluid leak. The purpose of the present invention is to provide an electronic gas meter which can

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 made by the present invention is the leakage at the time of factory shipment of an apparatus having a leakage detection function for detecting an abnormal flow rate of a fluid. A shipping mode canceling method for canceling a shipping mode for deactivating a detection function, which is a shipping mode cancel command 11a during the operation of the shipping mode which is automatically set upon detection of stop of the fluid supply pressure. In response to the above instruction, the shipping mode is released and the leak detection function is activated to have a leak detection manual selection mode.

According to the first aspect of the present invention, even if the leakage detection manual selection mode is set to the shipping mode even when the leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection mode is set. Shipping mode release command 11a during operation
When receiving the instruction of, the shipping mode is released and the leak detection function is activated, so that the fluid pressure P being monitored is the normal pressure Pc.
When the temperature exceeds the limit, the leak detection function can be activated and operated by the automatic operation.
Secondary side fluid supply system 31 connected to the downstream side of
It becomes possible to automatically measure the amount of fluid used for the fluid supplied to A under the leakage detection environment. That is, even if the shipping mode release processing is not performed, the leakage detection function can be restored by automatic operation, and the fluid leakage detection device 10 or the electronic gas meter 20 can detect the fluid consumption based on the fluid leakage detection operation. Will be able to weigh.

In order to solve the above-mentioned problems, the present invention as set forth in claim 2 inactivates the leak detection function at the time of factory shipment of an apparatus having a leak detection function for detecting an abnormal flow rate of a fluid. A shipping mode canceling method for canceling the shipping mode, wherein the fluid pressure P in the device is monitored during the operation of the shipping mode that is automatically set by detecting the stop of the fluid supply pressure. When the fluid pressure P being monitored exceeds the normal pressure Pc, the logic configuration has a leak detection automatic release mode for activating the leak detection function in the inactive state.

According to the invention of claim 2, claim 1
In addition to the effect described in, even if the leak detection automatic release mode is set in the device during the shipment mode operation, even if it is installed in the factory shipment mode where the leak detection function is stopped at the time of factory shipment. The fluid pressure P is monitored, and when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function that is in an inactive state is activated. Therefore, when the fluid pressure P being monitored exceeds the normal pressure Pc. The leak detection function can be activated and operated by automatic operation, and the amount of fluid used of the fluid supplied to the secondary fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 Weighing can be performed automatically in a leak detection environment. That is, even if the shipping mode release processing is not performed, it is possible to recover by the automatic operation of the leak detection function,
The fluid leak detection device 10 or the electronic gas meter 20 can measure the fluid usage based on the fluid leak detection operation.

In order to solve the above-mentioned problems, the invention according to claim 3 made according to the present invention is defined by claim 1 and claim 2.
In the shipping mode releasing method according to claim 1, comprising the leak detection manual selection mode and the leak detection automatic release mode, monitoring the activation of the leak detection manual selection mode with an intermittent operation cycle Ti during the operation of the shipping mode,
Activating the leak detection manual selection mode when the activation of the leak detection manual selection mode is detected, and monitoring the fluid pressure P in the device with the intermittent operation cycle Ti during the operation of the shipping mode, And a step of activating the leak detection automatic cancellation mode when the fluid pressure P being monitored exceeds the normal pressure Pc.

According to the invention of claim 3, claim 1
In addition to the effect described in claim 2, even when the leakage detection automatic release mode is set in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment,
The fluid pressure P in the device is monitored with the intermittent operation cycle Ti during the operation in the shipping mode, and the fluid pressure P being monitored is the normal pressure Pc.
When the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function in the inactive state is activated when the pressure exceeds the normal pressure. Therefore, the leak detection function is activated by the automatic operation with the intermittent operation cycle Ti. It becomes possible to measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 by the automatic operation under the leakage detection environment. Like That is, even if the shipping mode release process is not performed, the fluid leakage detection device 10 can be restored by automatic operation based on the intermittent operation cycle Ti of the leakage detection function, and the fluid leakage detection operation can be performed based on the operation. Alternatively, the electronic gas meter 20 can measure the amount of fluid used.

In order to solve the above-mentioned problems, the invention set forth in claim 4 made in accordance with the present invention includes claims 1 and 2.
In the shipping mode releasing method described in (1), the leak detecting manual selection mode and the leak detecting automatic releasing mode are provided, and a constant sampling period T is set during the operation of the shipping mode.
A step of activating the leak detection manual selection mode by monitoring the activation of the leak detection manual selection mode during a monitoring period in which the fluid pressure P in the device is monitored by c and detecting the activation of the leak detection manual selection mode. And monitoring the fluid pressure P in the device at the constant sampling period Tc during the operation in the shipping mode, and activating the leak detection automatic release mode when the fluid pressure P under monitoring exceeds the normal pressure Pc. And a logical configuration including a process of converting the data into a logical structure.

According to the invention of claim 4, claim 1
In addition to the effect described in claim 2, even when the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, the device is operated at a constant sampling cycle Tc during the operation in the shipment mode. Since the start of the leak detection manual selection mode is monitored during the monitoring period for monitoring the fluid pressure P in the inside, the fluid pressure P being monitored is the normal pressure Pc.
When it exceeds, the leak detection function can be activated and operated by the automatic operation with a constant sampling period Tc. Furthermore, when detecting the activation of the leak detection manual selection mode, the leak detection manual selection mode is activated,
The fluid pressure P in the device is monitored at a constant sampling period Tc during the operation in the shipping mode, and when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection automatic release mode is activated. When the fluid pressure P exceeds the normal pressure Pc, the leak detection function can be activated and activated by automatic operation with a constant sampling period Tc, and is connected downstream of the fluid cutoff valve 21.
The amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A can be automatically measured when the normal pressure Pc is exceeded under the leakage detection environment. That is, even if the shipping mode release processing is not performed, the fluid leakage detection device 10 can be restored by an automatic operation based on the constant sampling period Tc of the fluid leakage detection function, and the fluid leakage detection operation can be performed based on the detection operation. Alternatively, the electronic gas meter 20 can measure the amount of fluid used.

In order to solve the above-mentioned problems, the invention according to claim 5 made by the present invention is the shipping mode canceling method according to any one of claims 2 to 4, wherein the leak detection automatic canceling mode is set. The normal pressure P for activation
The logical configuration is such that c is the normal pressure Pc after the device is installed.

According to the invention of claim 5, claim 2
In addition to the effect according to any one of 4 to 4, even when the device is installed in the factory shipment mode in which the leak detection function is stopped at the time of shipment from the factory, a constant sampling period is set during the operation of the shipment mode. Since the start of the leak detection manual selection mode is monitored during the monitoring period for monitoring the fluid pressure P in the device at Tc or the intermittent operation cycle Ti, constant sampling is performed when the fluid pressure P being monitored exceeds the normal pressure Pc. With the cycle Tc or the intermittent operation cycle Ti, the leak detection function can be activated and activated by automatic operation. Further, when the activation of the leak detection manual selection mode is detected, the leak detection manual selection mode is activated, and the fluid pressure P in the device is monitored and monitored at a constant sampling cycle Tc or intermittent operation cycle Ti during the operation in the shipping mode. When the fluid pressure P inside exceeds the normal pressure Pc, the leak detection automatic release mode is activated. Therefore, when the fluid pressure P under monitoring exceeds the normal pressure Pc, a constant sampling cycle Tc or intermittent operation cycle Ti is set. The leak detection function can be activated and activated by automatic operation, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured. Can be executed automatically when the normal pressure Pc is exceeded in the leakage detection environment. That is, even if the shipping mode release process is not performed, the leakage detection function can be restored by an automatic operation based on the constant sampling cycle Tc or the intermittent operation cycle Ti, and the fluid leakage can be detected under the detection operation. The fluid leak detection device 10 or the electronic gas meter 20 can measure the amount of fluid used.

In order to solve the above-mentioned problems, the invention according to claim 6 made by the present invention is the method of releasing the shipping mode according to any one of claims 3 to 5, wherein the fluid flow blocking function is normal. If a test switch 22 for inspecting whether or not it operates is provided, the test switch 2
The shipping mode release command 1 generated in response to the operation 2
The logical configuration has a step of activating the leak detection manual selection mode when the instruction 1a is received.

According to the invention of claim 6, claim 3
In addition to the effect according to any one of 5 to 5, even if the leak detection manual selection mode is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, Shipping mode release command 11a
When receiving the instruction of, the shipping mode is released and the leak detection function is activated, so that the fluid pressure P being monitored is the normal pressure Pc.
When the temperature exceeds the limit, the leak detection function can be activated and operated by the automatic operation.
Secondary side fluid supply system 31 connected to the downstream side of
The amount of the fluid used of the fluid supplied to A can be measured by a manual operation in the leak detection environment. That is, even if the shipping mode release process is not performed, it is possible to recover by a manual operation using the test switch 22 of the leak detection function, and the fluid leakage detection device 10 or the electronic device can detect the leakage of the fluid based on the detection operation. The gas meter 20 is now able to meter fluid usage.

In order to solve the above-mentioned problems, the invention according to claim 7 made by the present invention relates to the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21. Detects supply abnormality, shuts off fluid supply,
Further, in the leak detection device 10 having a function of detecting that the supply abnormality of the fluid supplied to the secondary side fluid supply system 31A has been released and restoring the supply of the fluid, the stop of the supply pressure of the fluid is detected. A shipping mode release switch 11 that generates a shipping mode release command 11a that automatically releases the shipping mode and a fluid pressure P at a predetermined position in the device during operation of the shipping mode are monitored and pressure is monitored. Signal 1
Shipment that generates a shipping mode control signal 13a that controls inactivation / activation of the fluid sensor 12 that generates 2a and a device that has a leak detection function that detects an abnormal flow rate of fluid at the time of factory shipment Mode control means 13 and the shipping mode release command 11a during the operation of the shipping mode
Leakage detection manual selection means 14 for generating a leakage detection manual selection mode signal 14a for instructing execution of the leakage detection manual selection mode for canceling the shipping mode and activating the leakage detection function when receiving the instruction of Monitoring the fluid pressure P based on the pressure signal 12a during operation in the shipping mode,
When the fluid pressure P being monitored exceeds the normal pressure Pc, a leak is generated which generates a leak detection automatic release mode signal 15a instructing execution of the leak detection automatic release mode that activates the leak detection function in the inactive state. A hardware configuration having the automatic detection canceling means 15 is adopted.

According to the seventh aspect of the present invention, even if the leakage detection manual selection means 14 is installed in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment, Shipping mode release command 11 during operation
When the instruction “a” is received by using the shipping mode release switch 11, the shipping mode is released and the leak detection function is activated. Therefore, when the fluid pressure P being monitored exceeds the normal pressure Pc, the leakage is automatically performed. The detection function can be activated and activated, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured as a leakage detection environment. You will be able to do it by manual operation below. That is, even if the shipping mode release process is not performed, the leakage detection function can be restored by a manual operation, and the fluid leakage detection device 10 or the electronic gas meter 20 can be operated under the fluid leakage detection operation.
Will be able to measure fluid usage. In addition, even if the device is installed in the factory shipment mode in which the function is stopped, the leakage detection automatic canceling unit 15
Monitors the fluid pressure P in the device during the operation in the shipping mode, and activates the leak detection function in the inactive state when the fluid pressure P being monitored exceeds the normal pressure Pc. When the fluid pressure P exceeds the normal pressure Pc, the leak detection function can be activated and operated by automatic operation, and the secondary side fluid supply system connected downstream of the fluid cutoff valve 21. The amount of fluid used of the fluid supplied to 31A can be automatically measured in the leakage detection environment. That is, even if the shipping mode release processing is not performed, the leakage detection function can be restored by automatic operation, and the fluid leakage detection device 10 or the electronic gas meter 20 can detect the fluid consumption based on the fluid leakage detection operation. Will be able to weigh.

In order to solve the above-mentioned problems, the invention according to claim 8 made by the present invention is the leak detection device 10 according to claim 7, which further comprises a battery 16 for supplying electric power 16a necessary for the operation of the device. Having the shipping mode release switch 11, the fluid sensor 12, the shipping mode control means 1
3. Hardware in which the leak detection manual selection unit 14 and the leak detection automatic canceling unit 15 operate using the electric power 16a received from the battery 16 at least from the time of factory shipment to the start of the leak detection function. It was composed.

According to the invention described in claim 8, claim 7
In addition to the effect described in (1), even if the leakage detection manual selection means 14 is installed in the factory shipment mode in which the leakage detection function is stopped at the time of shipment from the factory, the leakage detection manual selection means 14 operates while the shipment mode is in operation. When the instruction of the release command 11a is received by using the shipping mode release switch 11, the shipping mode is released and the leak detection function is activated. Therefore, automatic operation is performed when the fluid pressure P being monitored exceeds the normal pressure Pc. The leak detection function can be activated and activated by the leak detection function, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured. It can be executed manually in the detection environment. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by a manual operation, and at the same time, the consumption of the battery 16 can be minimized to prevent the fluid leakage. The fluid leak detection device 10 or the electronic gas meter 20 can measure the fluid usage amount based on the detection operation. In addition, even when installed in the factory shipping mode in which the function is stopped, the leak detection automatic canceling unit 15 is
The fluid pressure P in the device is monitored during the operation in the shipping mode, and when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function which is in an inactive state is activated.
Secondary side fluid supply system 3 connected to the downstream side of 1
The amount of fluid used of the fluid supplied to 1A can be automatically measured in the leak detection environment. The leak detection function can be restored by automatic operation, and at the same time, the consumption of the battery 16 can be suppressed to the minimum, and the fluid leakage detection device 10 can detect the leakage of the fluid based on the operation.
Alternatively, the electronic gas meter 20 can measure the amount of fluid used.

In order to solve the above-mentioned problems, the invention according to claim 9 is made according to the present invention. In the leakage detection device 10 according to claim 7 or 8, the leakage detection manual selection means 14 has the shipping mode. Intermittent operation cycle Ti during operation
Is configured to activate the leak detection manual selection mode by activating the leak detection manual selection mode when the activation of the leak detection manual selection mode is detected. The fluid pressure P in the device is monitored with the intermittent operation cycle Ti during the operation in the shipping mode, and the leak detection automatic release mode is activated when the monitored fluid pressure P exceeds the normal pressure Pc. It has a hardware configuration.

According to the invention of claim 9, claim 7
Alternatively, in addition to the effect described in 8, even when the leakage detection manual selection unit 14 is installed in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection unit 14 is not operated during the operation of the shipment mode. Leakage detection is performed with the intermittent operation cycle Ti. The activation of the manual selection mode is monitored, and when the instruction of the shipping mode release command 11a is received using the shipping mode release switch 11 during the operation of the shipping mode, the shipping mode is released to detect the leak. Since the function is activated, when the monitored fluid pressure P exceeds the normal pressure Pc, the leak detection function can be activated and activated by an automatic operation, and can be operated downstream of the fluid cutoff valve 21. The amount of fluid used of the fluid supplied to the connected secondary side fluid supply system 31A can be measured by a manual operation in a leak detection environment. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by a manual operation, and at the same time, the consumption of the battery 16 can be minimized to prevent the fluid leakage. The fluid leak detection device 10 or the electronic gas meter 20 can measure the fluid usage amount based on the detection operation. In addition, even when the device is installed in the factory shipping mode in which the function is stopped, the leakage detection automatic canceling unit 15 has the fluid pressure P in the device with the intermittent operation cycle Ti during the operation in the shipping mode. The leak detection function that is inactive when the fluid pressure P being monitored exceeds the normal pressure Pc is activated. Therefore, automatic operation is performed when the fluid pressure P being monitored exceeds the normal pressure Pc. The leak detection function can be activated and activated by the leak detection function, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured. Under the detection environment, it can be automatically executed with the intermittent operation cycle Ti.
That is, even if the shipping mode release process is not performed, the intermittent operation cycle Ti enables the automatic recovery of the leak detection function, and at the same time, the consumption of the battery 16 can be minimized. The fluid leakage detection device 10 or the electronic gas meter 20 can measure the amount of fluid used based on the fluid leakage detection operation.

In order to solve the above-mentioned problems, the invention according to claim 10 made in accordance with the present invention is the leakage detection device 10 according to claim 7 or 8, wherein the leakage detection manual selection means 14 has the shipping mode. Monitoring the activation of the leak detection manual selection mode during a monitoring period in which the fluid pressure P in the device is monitored at a constant sampling cycle Tc during the operation of
The leak detection manual selection mode is configured to be activated when the activation of the leak detection manual selection mode is detected, and the leak detection automatic canceling unit 15 operates at the constant sampling cycle Tc during the operation in the shipping mode. The fluid pressure P in the apparatus is monitored, and when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection automatic cancellation mode is activated.

According to the tenth aspect of the invention, in addition to the effect of the seventh or eighth aspect, it is a case where the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. Even if the leak detection manual selection means 14 monitors the activation of the leak detection manual selection mode with a constant sampling period Tc during the operation of the shipping mode, the instruction of the shipping mode release command 11a is released during the operation of the shipping mode. When the switch 11 is received, the shipping mode is released and the leak detection function is activated. Therefore, when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function is activated and activated automatically. It becomes possible to measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 and detect the leakage. It can be executed by a manual operation in the border under. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery 16 can be suppressed to the minimum, and the fluid leakage can be prevented. The fluid leak detection device 10 or the electronic gas meter 20 based on the detection operation.
Will be able to measure fluid usage. In addition, even if the device is installed in the factory shipment mode in which the function is stopped, the leakage detection automatic canceling unit 15
However, the fluid pressure P in the device is monitored at a constant sampling period Tc during the operation in the shipping mode, and the fluid pressure P being monitored is monitored.
Activates the leak detection function which is in an inactive state when the normal pressure Pc exceeds the normal pressure Pc. Therefore, when the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function is activated and operated automatically. It becomes possible to measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 automatically at a constant sampling cycle Tc under a leak detection environment. It can be executed by operation. That is, even if the shipping mode release process is not performed, it is possible to return the leakage detection function by the automatic operation with the constant sampling period Tc, and at the same time, it is possible to minimize the consumption of the battery 16. The fluid leakage detection device 10 or the electronic gas meter 20 can measure the amount of fluid used based on the fluid leakage detection operation.

In order to solve the above problems, the invention according to claim 11 made in accordance with the present invention is the leak detection device 10 according to claim 7, wherein the leak detection automatic canceling means 15 is used.
Monitors the fluid pressure P based on the pressure signal 12a during the operation in the shipping mode, and activates the leak detection function in the inactive state when the monitored fluid pressure P exceeds the normal pressure Pc. The hardware configuration is to execute the leak detection automatic cancellation mode.

According to the invention of claim 11, in addition to the effect of claim 7, even when installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. The leak detection manual selection means 14 monitors the activation of the leak detection manual selection mode with the intermittent operation cycle Ti or the constant sampling cycle Tc during the operation in the shipping mode, and the shipping mode release command 11 during the operation in the shipping mode.
When the instruction “a” is received using the shipping mode release switch 11, the shipping mode is released and the leak detection function is activated. Therefore, when the monitored pressure P exceeds the normal pressure Pc, the leak detection is automatically performed. The function can be activated and activated, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured under the leakage detection environment. Now you can do it manually. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by a manual operation, and at the same time, the consumption of the battery 16 can be minimized to prevent the fluid leakage. The fluid leak detection device 10 or the electronic gas meter 20 can measure the fluid usage amount based on the detection operation. In addition, even if the leakage detection automatic canceling means 15 is installed in the factory shipping mode in which the function is stopped, the leak detection automatic canceling means 15 operates intermittently during the shipping mode.
Or the pressure P in the device with a constant sampling period Tc
The leak detection function which is inactive when the pressure P being monitored exceeds the normal pressure Pc is activated. Therefore, when the pressure P being monitored exceeds the normal pressure Pc, the leakage is automatically performed. The detection function can be activated and activated, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured in the leakage detection environment. Under the intermittent operation cycle Ti or the constant sampling cycle Tc, it can be automatically performed. That is, even if the shipping mode release process is not performed, the intermittent operation cycle Ti or the constant sampling cycle Tc can be used to automatically return the leak detection function, and at the same time, the consumption of the battery 16 can be minimized. As a result, the fluid leakage detection device 10 or the electronic gas meter 20 can measure the amount of fluid used based on the fluid leakage detection operation.

In order to solve the above-mentioned problems, the invention according to claim 12 made according to the present invention is the leakage detection device 10 according to claim 7, wherein the leakage detection manual selection means 14 is used.
Has a test switch 22 for inspecting whether or not the fluid flow cutoff function operates normally, the instruction of the shipping mode release command 11a generated in response to the operation of the test switch 22 is received. At this time, the hardware configuration is configured to activate the leak detection manual selection mode.

According to the twelfth aspect of the invention, in addition to the effect of the first aspect, even when installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. Since the leakage detection manual selection mode activates the leakage detection function by canceling the shipping mode when receiving the instruction of the shipping mode release command 11a during the operation of the shipping mode,
When the fluid pressure P being monitored exceeds the normal pressure Pc, the leak detection function can be activated and activated by an automatic operation, and the secondary side connected to the downstream side of the fluid cutoff valve 21. The amount of fluid used of the fluid supplied to the fluid supply system 31A can be measured by a manual operation in a leak detection environment. That is, even if the shipping mode release process is not performed, the fluid leakage detection device 10 can be restored by a manual operation using the test switch 22 having the leakage detection function, and the fluid leakage detection operation can be performed based on the operation.
Alternatively, the electronic gas meter 20 can measure the amount of fluid used.

The invention according to claim 13 made by the present invention to solve the above-mentioned problems is used in an electronic gas meter 20 using the leak detection device 10 according to any one of claims 7 to 12. The amount of gas is measured, the supply abnormality of the gas supplied to the secondary gas supply system 31A connected to the downstream side of the gas cutoff valve 21 is detected as a cutoff event, and the gas supply is cut off. Secondary gas supply system 3
In the electronic gas meter 20 that detects that the supply abnormality of the gas supplied to 1A is released and restores the supply of the gas, the leak detection device 1 that detects gas as the fluid
0, and a gas shutoff means for generating a gas shutoff signal 23a for performing a gas shutoff control for shutting off the gas supply to the secondary gas supply system 31A when the shutoff event is detected. Combustion control means 2 for generating a combustion control signal 24a for executing combustion control by operating 23 and gas appliances 30, ..., 30 connected to the gas supply path 31.
4 and the gas cutoff signal 2 provided in the gas supply path 31.
In accordance with 3a, a hardware configuration having a gas shutoff valve 21 that temporarily shuts off the gas supply in the gas supply passage 31 is provided.

According to the invention described in claim 13, in addition to the effect described in any one of claims 7 to 12, the installation is performed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. Even if the leak is detected, the leak detection device 10
The leak detection manual selection means 14 provided in the above section monitors the activation of the leak detection manual selection mode with the intermittent operation cycle Ti or the constant sampling cycle Tc during the operation of the shipping mode, and the shipping mode release command 11 is issued during the operation of the shipping mode.
When the instruction “a” is received using the shipping mode release switch 11, the shipping mode is released and the leak detection function is activated. Therefore, when the monitored pressure P exceeds the normal pressure Pc, the leak detection is automatically performed. The function can be activated and activated, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system 31A connected to the downstream side of the fluid cutoff valve 21 is measured under the leakage detection environment. Now you can do it manually. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by a manual operation, and at the same time, the consumption of the battery 16 can be minimized to prevent the fluid leakage. The fluid leak detection device 10 or the electronic gas meter 20 can measure the fluid usage amount based on the detection operation. In addition, even when installed in the factory shipment mode in which the function is stopped, the leak detection device 1
The leak detection automatic canceling means 15 provided at 0 monitors the pressure P in the apparatus at the intermittent operation cycle Ti or the constant sampling cycle Tc during the operation in the shipping mode, and the monitored pressure P exceeds the normal pressure Pc. At this time, the leak detection function in the inactive state is activated, so that the pressure P being monitored is the normal pressure P.
When c is exceeded, the leak detection function can be activated and activated by automatic operation.
Secondary side fluid supply system 3 connected to the downstream side of 1
The amount of fluid used for the fluid supplied to 1A is measured in the leak detection environment by intermittent operation cycle Ti or constant sampling cycle Tc.
Therefore, it can be executed automatically. That is, even if the shipping mode release process is not performed, the intermittent operation cycle Ti or the constant sampling cycle Tc can be used to automatically return the leak detection function, and at the same time, the consumption of the battery 16 can be minimized. As a result, the fluid leakage detection device 10 or the electronic gas meter 20 can measure the amount of fluid used based on the fluid leakage detection operation. In addition, by providing the gas shut-off means 23, gas shut-off control for shutting off gas supply to the secondary gas supply system 31A by executing shut-off control of gas to the gas shut-off valve 21 when a shut-off event is detected. The gas device 3 connected to the gas supply path 31 is provided by providing the combustion control means 24.
The combustion control for the gas appliances 30, ..., 30 can be performed by operating 0 ,.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION First, an embodiment of an electronic gas meter will be described with reference to the drawings.

FIG. 1 is a functional block diagram for explaining an embodiment of an electronic gas meter 20 for executing the shipping mode releasing method according to the embodiment of the present invention.

The electronic gas meter 20 shown in FIG. 1 is the electronic gas meter 20 using the leak detection device 10 according to any one of claims 7 to 12, wherein the amount of LP gas used is measured, and a gas cutoff valve 21 is used. Downstream (gas water heater 3
(0, ..., 30 side), a supply abnormality such as a gas leak of LP gas supplied to the secondary side gas supply system 31A is detected as a cutoff event, and the LP gas supply is cut off. LP of LP gas supplied to the side gas supply system 31A
A leak detection device 10 to be described later that has a function of detecting that a supply abnormality such as a gas leak is canceled (specifically, repairing a gas leak location) and restarting the supply of the LP gas, and detecting the LP gas. In addition, the hardware configuration mainly includes the gas shutoff means 23, the combustion control means 24, the gas shutoff valve 21, and the test switch 22.

The test switch 22 is used to inspect whether or not the LP gas flow blocking function operates normally. In this case, the leak detection manual selection mode can be activated when receiving the instruction of the shipping mode release command 11a generated in response to the operation of the test switch 22.

As a result, even when the LP gas leak detection function is stopped at the time of factory shipment, the leak detection manual selection mode is set to the LP
When the stop of the gas supply pressure P is detected by using the pressure signal 12a and the shipping mode process is automatically set, and the shipping mode release command 11a is received, the shipping mode process is interrupted and LP is set. Since the gas leak detection function is activated, the LP gas pressure P during monitoring is the normal pressure Pc (60 mm
It becomes possible to activate the LP gas leak detection function by an automatic operation when the temperature exceeds H2O), and the downstream side of the LP gas cutoff valve 21 (gas water heater 30, ..., 30).
It becomes possible to manually measure the amount of used LP gas of the LP gas supplied to the secondary LP gas supply system 31A connected to the (side) in the leak detection environment. That is, even if the shipping mode release processing is not performed, it is possible to recover by manual operation using the test switch 22 of the LP gas leakage detection function, and the LP gas leakage detection is performed under the detection operation of the LP gas leakage. The device 10 or the electronic gas meter 20 can measure the amount of LP gas used.

The gas shutoff means 23 executes a shutoff control of the LP gas of the gas when a shutoff event such as a leak or an earthquake is detected, and shuts off the gas supply to the secondary side gas supply system 31A. Has a hardware configuration for generating a gas cutoff signal 23a for executing the supply cutoff control, and is specifically realized by using a microprocessor capable of executing a program code describing a shipping mode release method described later. ing.

The combustion control means 24 has a hardware structure for operating the gas water heaters 30, ..., 30 connected to the gas supply path 31 to generate a combustion control signal 24a for executing combustion control. Specifically, it is realized by using the microprocessor.

The gas shutoff valve 21 is provided in the gas supply passage 31 and has a hardware structure for temporarily shutting off the LP gas supply in the gas supply passage 31 in response to the gas shutoff signal 23a.

As described above, the electronic gas meter 20
According to this, even when the LP gas leak detection function is stopped at the time of factory shipment, the leak detection manual selection means 14 provided in the leak detection device 10 is installed in the factory shipment mode. Stop the supply pressure P of the pressure signal 12
The start of the leak detection manual selection mode is monitored with the intermittent operation cycle Ti or the constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode processing which is detected by using a and is automatically set, When the shipping mode cancellation command 11a is received during operation by using the shipping mode cancellation switch 11, the shipping mode process is interrupted and the LP
Since the gas leak detection function is activated, when the monitoring pressure P exceeds the normal pressure Pc (60 mmH2O), the LP gas leakage detection function can be activated by automatic operation. Also, the amount of LP gas used of the LP gas supplied to the secondary LP gas supply system 31A connected to the downstream side (gas water heater 30, ..., 30 side) is measured by manual operation in a leak detection environment. become able to. That is, the supply pressure P of the LP gas
Even if the shipping mode release process that is automatically set by detecting the stop of the battery using the pressure signal 12a is not performed, the LP gas leakage detection function can be manually restored and the battery 16 It becomes possible to minimize the consumption of the gas, and the LP gas leakage detection device 10 or the electronic gas meter 20 can measure the amount of LP gas used under the operation of detecting the leakage of the LP gas. In addition, even when the apparatus is installed in the factory shipment mode in which the function is stopped, the leakage detection automatic canceling unit 15 provided in the leakage detection device 10 stops the supply pressure P of LP gas. The pressure in the device is monitored by the intermittent operation cycle Ti or the constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode process which is detected by using the pressure signal 12a and automatically set.
When the pressure exceeds the normal pressure Pc (60mmH2O), the LP gas leak detection function in the stopped state operates, so when the monitoring pressure P exceeds the normal pressure Pc (60mmH2O), the LP gas leak detection is performed automatically. The LP gas supplied to the secondary LP gas supply system 31A connected to the downstream side (gas water heater 30, ..., 30 side) of the LP gas cutoff valve 21 is enabled. The amount of LP gas used is intermittently operating in a leak detection environment Ti or constant sampling cycle Tc (one hour cycle)
Therefore, it can be executed automatically. That is, even if the shipping mode release processing is not performed, the intermittent operation cycle Ti or the constant sampling cycle Tc
(1 hour cycle), the LP gas leakage detection function can be restored by automatic operation, and at the same time, the consumption of the battery 16 can be suppressed to the minimum, and the LP gas leakage can be detected under the detection operation. The leak detection device 10 or the electronic gas meter 20 can measure the amount of LP gas used. Furthermore, by providing the gas shutoff means 23, when a shutoff event such as a leak or an earthquake is detected, L
The LP gas supply cutoff control for the P gas gas cutoff valve 21 can be executed to execute the gas LP gas supply cutoff control for cutting off the gas supply to the secondary gas supply system 31A. By providing the above, it becomes possible to operate the gas water heaters 30, ..., 30 connected to the gas supply path 31 and execute the combustion control for the gas water heaters 30 ,.

Next, an embodiment of the leak detection device of the present invention will be described.

FIG. 1 is a functional block diagram for explaining an embodiment of a gas leakage detection device 10 for executing the shipping mode releasing method according to the embodiment of the present invention.

The leak detection device 10 shown in FIG. 1 is located downstream of the LP gas cutoff valve 21 (gas water heater 30, ..., 30).
Side) is connected to the secondary side LP gas supply system 31A, the supply abnormality such as gas leakage of the LP gas supplied to the secondary side LP gas supply system 31A is detected, and the supply of the LP gas is shut off. It has the function of restarting the supply of LP gas by detecting that the supply abnormality such as LP gas leakage of the supplied LP gas has been canceled (specifically, repair of the gas leak location), and has a shipping mode release switch. The hardware configuration includes 11, an LP gas sensor 12, a shipping mode control unit 13, a leak detection manual selection unit 14, a leak detection automatic canceling unit 15, and a battery 16.

The shipping mode release switch 11 has a function of detecting the stop of the LP gas supply pressure P using the pressure signal 12a and generating a shipping mode release command 11a for instructing the release of the shipping mode which is automatically set. And specifically,
It uses a toggle switch.

The LP gas sensor 12 detects the stop of the supply pressure P of the LP gas by using the pressure signal 12a and automatically sets the LP gas supply pressure P at the upstream side of the shutoff valve 12 in the apparatus. A pressure sensor having a function of monitoring the LP gas pressure P and generating the pressure signal 12a can be used. As the LP gas sensor 12 for measuring the flow rate of LP gas on the downstream side of the shutoff valve 12, an ultrasonic type or membrane type reed switch, a flow rate sensor 17 such as a flow sensor can be used. In this device, as shown in FIG. 1, an LP gas sensor (pressure sensor) 12 is provided on the upstream side of the LP gas cutoff valve 21, and a flow rate sensor 17 is provided on the downstream side of the LP gas cutoff valve 21. The signal 17a is input to the shipping mode control means 13.

The shipping mode control means 13 generates a shipping mode control signal 13a for stopping or controlling the LP gas leak detection function at the time of factory shipment of an apparatus having an LP gas leak detection function for detecting an abnormal flow rate of LP gas. It has a function to perform, and is specifically realized by the above-mentioned microprocessor.

The leak detection manual selection means 14 detects the stop of the supply pressure P of the LP gas by using the pressure signal 12a, and gives an instruction of the shipping mode release command 11a during the operation of the shipping mode processing which is automatically set. Leak detection manual selection mode signal 1 for instructing execution of the leak detection manual selection mode in which the shipment mode process is interrupted when receiving and the LP gas leak detection function is activated
It has a function of generating 4a, and is specifically realized by the above-mentioned microprocessor.

The leak detection automatic canceling means 15 detects the stop of the LP gas supply pressure P using the pressure signal 12a and automatically sets the LP gas pressure P during the operation of the shipping mode process. The LP gas pressure P during monitoring is based on the normal pressure Pc (60 mmH2
When it exceeds O), it has a function of generating a leak detection automatic cancellation mode signal 15a for instructing execution of the leak detection automatic cancellation mode for operating the LP gas leakage detection function in the stopped state. It is realized by the microprocessor.

The battery 16 has a power of 1 required for the operation of each device.
It has a battery 16 for supplying 6a, a shipping mode release switch 11, an LP gas sensor 12, a shipping mode control means 1
3. With respect to the leakage detection manual selection means 14 and the leakage detection automatic cancellation means 15, at least from the time of factory shipment, the LP
It has a role of supplying the electric power 16a until the gas leakage detection function starts.

Next, the operation of the leak detection device 10 will be described.

The leak detection manual selection means 14 detects the stop of the supply pressure P of the LP gas using the pressure signal 12a and automatically sets the leak detection manual operation with the intermittent operation cycle Ti during the operation of the shipping mode process. The activation of the selection mode can be monitored, and the leakage detection manual selection mode can be activated when the activation of the leakage detection manual selection mode is detected. In this case, the leakage detection automatic canceling means 15 monitors the LP gas pressure P in the gas sensor 12 at the intermittent operation cycle Ti during the operation of the shipping mode process, and the L during monitoring is monitored.
When the P gas pressure P exceeds the normal pressure Pc (60 mmH2O), the leak detection automatic release mode can be activated.

Specifically, the leak detection automatic canceling means 15
However, the LP gas pressure P is monitored based on the pressure signal 12a during the operation of the shipping mode process which is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a, and LP gas pressure P is normal pressure P
When the pressure exceeds c (60 mmH2O), the leak detection automatic release mode for activating the LP gas leak detection function in the stopped state is executed.

As a result, even when installed in the factory shipment mode in which the LP gas leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection means 14 is set to L.
Leakage detection manual selection with intermittent operation cycle Ti or constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode process which is automatically set by detecting the stop of the supply pressure P of P gas using the pressure signal 12a. The start of the mode is monitored, and the shipping mode release command 1 is issued during the shipping mode process.
When the instruction 1a is received using the shipping mode release switch 11, the shipping mode process is interrupted and the LP gas leakage detection function is activated, so that the pressure P being monitored is the normal pressure P.
LP is automatically operated when c (60 mmH2O) is exceeded.
The gas leakage detection function can be activated, and the downstream side of the LP gas cutoff valve 21 (the gas water heater 3
(0, ..., 30 side), the amount of used LP gas supplied to the secondary LP gas supply system 31A connected to the secondary LP gas supply system 31A can be measured by a manual operation in a leak detection environment. That is, even when the stop of the LP gas supply pressure P is detected using the pressure signal 12a and the shipping mode release process that is automatically set is not performed, the LP gas leakage detection function is manually restored. At the same time, the consumption of the battery 16 can be minimized, and the LP gas leakage detection device 10 or the electronic gas meter 20 measures the amount of LP gas used under the operation of detecting the leakage of LP gas. Will be able to. In addition, even when installed in the factory shipment mode in which the function is stopped, the leakage detection automatic canceling unit 15 causes the intermittent operation cycle Ti or the constant sampling cycle Tc ( The pressure in the device is monitored for one hour period), and the pressure P during monitoring is the normal pressure Pc.
When it exceeds (60mmH2O), the LP gas leak detection function in the stopped state is activated, so when the monitoring pressure P exceeds the normal pressure Pc (60mmH2O), the LP gas leak detection function is activated automatically. The secondary side L connected to the downstream side (gas water heater 30, ..., 30 side) of the LP gas cutoff valve 21 becomes possible.
Use LP of LP gas supplied to P gas supply system 31A
The amount of gas can be measured automatically in a leak detection environment with an intermittent operation cycle Ti or a constant sampling cycle Tc (one hour cycle). That is, even when the stop of the supply pressure P of the LP gas is detected using the pressure signal 12a and the shipping mode release processing that is automatically set is not performed, the intermittent operation cycle Ti or the constant sampling cycle Tc ( It enables the automatic recovery of the LP gas leakage detection function in a one-hour period) and at the same time, the battery 1
It becomes possible to minimize the consumption of 6 and L
LP gas leakage detection device 1 based on the operation of detecting P gas leakage
0 or the electronic gas meter 20 can measure the amount of LP gas used.

On the other hand, as shown in FIG. 4 which will be described later, the leak detection manual selection means 14 detects the stop of the supply pressure P of the LP gas by using the pressure signal 12a and automatically sets the shipping mode. When the startup of the leak detection manual selection mode is monitored during the monitoring period during which the LP gas pressure P in the gas sensor 12 is monitored at a constant sampling cycle Tc (one hour cycle) during operation, and the startup of the leak detection manual selection mode is detected. The leak detection automatic release means 15 is configured to activate the leak detection manual selection mode, and the leak detection automatic release means 15 is configured to supply the LP gas at a supply pressure P.
Of the LP gas pressure P in the gas sensor 12 is monitored at a constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode process which is automatically set by detecting the stop of the pressure signal 12a. LP gas pressure P
When the pressure exceeds the normal pressure Pc (60 mmH2O), the leak detection automatic release mode is activated.

As a result, even when installed in the factory shipment mode in which the LP gas leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection means 14 is set to L
The start of the leak detection manual selection mode is monitored with a constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode process that is automatically set by detecting the stop of the supply pressure P of P gas using the pressure signal 12a. Then, the stop of the LP gas supply pressure P is detected using the pressure signal 12a, and the instruction of the shipping mode release command 11a is received using the shipping mode release switch 11 during the operation of the shipping mode processing which is automatically set. In that case, the shipping mode process is interrupted and the LP gas leakage detection function is activated.
When the pressure exceeds the normal pressure Pc (60 mmH2O), the LP gas leak detection function can be activated automatically, and the downstream side of the LP gas cutoff valve 21 (the gas water heater 30, ..., 30 side) Secondary LP connected to
The amount of LP gas used of the LP gas supplied to the gas supply system 31A can be measured by a manual operation in a leak detection environment. That is, even when the stop of the supply pressure P of the LP gas is detected using the pressure signal 12a and the shipping mode release process that is automatically set is not performed,
The P gas leakage detection function can be restored by manual operation, and at the same time, the consumption of the battery 16 can be minimized, and the LP gas leakage detection device 10 or the electronic device can detect the leakage of the LP gas based on the operation. The gas meter 20 can measure the amount of LP gas used. In addition, even when installed in the factory shipping mode in which the function is stopped, the leak detection automatic canceling unit 15 is
The LP gas pressure P in the gas sensor 12 is set at a constant sampling cycle Tc (one hour cycle) during the operation of the shipping mode process which is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a. During monitoring, the LP gas pressure P being monitored is the normal pressure Pc (60 mmH2
When it exceeds O), the LP gas leak detection function in the stopped state is activated, so when the LP gas pressure P during monitoring exceeds the normal pressure Pc (60 mmH2O), the LP gas leakage detection function is activated automatically. The LP gas used LP supplied to the secondary-side LP gas supply system 31A connected to the downstream side (gas water heater 30, ..., 30 side) of the LP gas cutoff valve 21. Measurement of gas amount is constant sampling cycle Tc under leak detection environment
It becomes possible to perform it by automatic operation by (one hour cycle). That is, even if the shipping mode release process is not performed, the LP gas leakage detection function can be automatically restored with a constant sampling period Tc (one hour period), and at the same time, the consumption of the battery 16 can be minimized. As a result, the LP gas leakage detection device 10 or the electronic gas meter 20 can measure the LP gas consumption based on the operation of detecting the LP gas leakage.

Here, the leakage detection manual selection means 14 is
When the test switch 22 is provided to inspect whether the gas flow cutoff function operates normally, the shipping mode release command 1 generated according to the operation of the test switch 22.
When the instruction 1a is received, the leak detection manual selection mode can be activated.

As a result, even if the LP gas leakage detection function is stopped at the time of factory shipment and installed in the factory shipment mode, the leakage detection manual selection mode is set to the LP mode.
When the stop of the gas supply pressure P is detected by using the pressure signal 12a and the shipping mode process is automatically set, and the shipping mode release command 11a is received, the shipping mode process is interrupted and LP is set. Since the gas leak detection function is activated, the LP gas pressure P during monitoring is the normal pressure Pc (60 mm
It becomes possible to activate the LP gas leak detection function by an automatic operation when the temperature exceeds H2O), and the downstream side of the LP gas cutoff valve 21 (gas water heater 30, ..., 30).
It becomes possible to manually measure the amount of used LP gas of the LP gas supplied to the secondary LP gas supply system 31A connected to the (side) in the leak detection environment. That is, even if the shipping mode release processing is not performed, it is possible to recover by manual operation using the test switch 22 of the LP gas leakage detection function, and the LP gas leakage detection is performed under the detection operation of the LP gas leakage. The device 10 or the electronic gas meter 20 can measure the amount of LP gas used.

As described above, according to the leak detection device 10, even if the leak detection manual selection means is installed in the factory shipment mode in which the LP gas leak detection function is stopped at the time of factory shipment, 14 is the supply pressure P of LP gas
Of the shipping mode is detected by using the pressure signal 12a to automatically set the shipping mode release command 1 during the operation of the shipping mode process.
When the instruction 1a is received using the shipping mode release switch 11, the shipping mode processing is interrupted and the LP gas leakage detection function is activated, so the LP gas pressure P during monitoring exceeds the normal pressure Pc (60 mmH2O). At this time, the LP gas leakage detection function can be activated by an automatic operation, and the secondary side LP gas connected to the downstream side (gas water heater 30, ..., 30 side) of the LP gas cutoff valve 21. The amount of LP gas used of the LP gas supplied to the supply system 31A can be measured by a manual operation in a leak detection environment. That is, even when the stop of the LP gas supply pressure P is detected by using the pressure signal 12a and the shipping mode release process that is automatically set is not performed, the LP gas leakage detection function is manually restored. To enable LP
LP gas leakage detection device 10 based on the operation of detecting gas leakage
Alternatively, the electronic gas meter 20 can measure the amount of LP gas used. In addition, even when the apparatus is installed in the factory shipping mode in which the function is stopped, the leakage detection automatic canceling unit 15 causes the LP gas supply pressure P to increase.
Of the gas sensor 12 during the operation of the shipping mode process in which the stop of the gas is detected by using the pressure signal 12a and is automatically set.
P monitoring the gas pressure P and LP during monitoring
When the gas pressure P exceeds the normal pressure Pc (60 mmH2O), the LP gas leak detection function in the stopped state is activated, so the LP gas pressure P being monitored is the normal pressure Pc.
When it exceeds (60mmH2O), LP is automatically operated.
The gas leakage detection function can be activated, and the downstream side of the LP gas cutoff valve 21 (the gas water heater 3
(0, ..., 30 side), the amount of LP gas used of the LP gas supplied to the secondary LP gas supply system 31A connected to the secondary LP gas supply system 31A can be automatically measured under the leakage detection environment. That is, even if the shipping mode release processing is not performed, the LP gas leakage detection function can be restored by automatic operation, and the LP gas leakage can be detected by the L operation under the detection operation.
P gas leak detection device 10 or electronic gas meter 20 is L
It becomes possible to measure the amount of P gas used.

Next, a shipping mode canceling method according to the embodiment of the present invention will be described.

FIG. 3 is a flow chart for explaining one embodiment of the shipping mode releasing method executed by the gas leak detection device 10 and the electronic gas meter 20 of FIG.
FIG. 4 is a timing chart for explaining the operations of the gas leak detection device 10 and the electronic gas meter 20 in the shipping mode releasing method of FIG.

The shipping mode canceling method shown in FIGS. 2 and 3 is a shipping mode process for stopping the LP gas leakage detection function at the time of factory shipment of an apparatus having an LP gas leakage detection function for detecting an abnormal flow rate of LP gas (step S1) is interrupted, and the leak detection manual selection mode (“input is present (manual cancellation)” in step S2 → step S7 → step S
8) has a leakage detection automatic cancellation mode (“No input” in step S2 → “Elapsed” in step S3 → step S4 → ≧ (automatic cancellation) in step S5 → step S7).

Leakage detection manual selection mode (“input is present (manual cancellation)” in step S2 → step S7 → step S
8) is when the instruction of the shipping mode release command 11a is received during the operation of the shipping mode processing (step S1) which is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a. Leakage detection manual operation in which the shipping mode process (step S1) is interrupted to "there is input (manual cancellation) in step S2", the shipping mode is canceled (step S7), and the LP gas leakage detection function (step S8) is activated. It has a logical configuration having a selection mode (“input is present (manual cancellation) in step S2” → step S7 → step S8), and is described by a program code that can be executed by the aforementioned microprocessor.

According to such a leak detection manual selection mode (“input is present (manual cancellation)” in step S2 → step S7 → step S8), the factory shipment mode in which the LP gas leak detection function is stopped at the time of field shipment Leak detection manual selection mode (step S
2, “input is present (manual release)” → step S7 → step S8) indicates that the LP gas supply pressure P is stopped by the pressure signal 12a.
The shipping mode release command 11a is detected during the operation of the shipping mode process (step S1) that is automatically detected and set using
When receiving the instruction of (there is an input (manual release) in step S2), the shipping mode process (step S1) is interrupted, the shipping mode is released (step S7), and the LP gas leakage detection function (step S8). Is activated, the LP gas pressure P during monitoring (step S5) is equal to the normal pressure Pc.
When it exceeds (60 mmH2O) (“≧ (automatic release)” in step S5), the LP gas leakage detection function can be activated by an automatic operation, and the LP gas cutoff valve 21 is provided downstream (gas hot water supply). It becomes possible to manually measure the amount of LP gas used of the LP gas supplied to the secondary LP gas supply system 31A connected to the container 30, ..., 30 side) under a leakage detection environment. That is, even if the shipping mode release process is not performed, the LP
The gas leak detection function can be restored manually, and L
LP gas leakage detection device 1 based on the operation of detecting P gas leakage
0 or the electronic gas meter 20 can measure the amount of LP gas used.

Leakage detection automatic release mode (“No input” in step S2 → “Progress” in step S3 → Step S4 → S
5 ≧ (automatic release) → step S7), the gas sensor 12 is activated during the operation of the shipping mode process (step S1) which is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a. The LP gas pressure P inside is monitored, and the LP gas pressure P during monitoring (step S5)
Has a logical configuration that activates the LP gas leakage detection function (step S8) in the stopped state when the pressure exceeds the normal pressure Pc (60 mmH2O) (“≧ (automatic release)” in step S5). It is written in program code that can be executed by a processor.

According to such a leak detection automatic cancellation mode (“No input” in step S2 → “Elapsed” in step S3 → step S4 → ≧ (automatic cancellation) in step S5 → step S7), LP gas is shipped from the factory. Even when installed in the factory shipment mode where the leak detection function is stopped,
Leak detection automatic release mode (“No input” in step S2 →
The shipping mode process in which “stop” of step S3 → step S4 → ≧ (automatic release) of S5 → step S7) is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a. The LP gas pressure P in the gas sensor 12 is monitored during the operation of (step S1), and the LP gas pressure P during the monitoring (step S5) is the normal pressure Pc.
When it exceeds (60 mmH2O) (“≧ (automatic release)” in step S5), the LP gas leakage detection function (step S8) in the stopped state is activated, so that the LP gas pressure P during monitoring (step S5) is Normal pressure Pc (60m
When it exceeds mH2O (“≧ (automatic release)” in step S5), the LP gas leakage detection function can be activated by an automatic operation.
L supplied to the secondary LP gas supply system 31A connected to the downstream side (gas water heater 30, ..., 30 side)
Use of P gas It becomes possible to measure the amount of LP gas by automatic operation in a leak detection environment. That is, even when the stop of the LP gas supply pressure P is detected by using the pressure signal 12a and the shipping mode release processing that is automatically set is not performed, the LP gas leakage detection function is automatically restored. Is enabled and L is detected under the action of detecting leakage of LP gas.
P gas leak detection device 10 or electronic gas meter 20 is L
It becomes possible to measure the amount of P gas used.

Further, during the operation of the shipping mode process (step S1) which is automatically set by detecting the stop of the LP gas supply pressure P using the pressure signal 12a, step S3 → “<” → in step S5 → A constant sampling period Tc (see FIG. 4) generated by using the timer function configured in step S6.
In the monitoring period for monitoring the LP gas pressure P in the gas sensor 12 at a time period shown in (1), the start of the leak detection manual selection mode (“input (manual cancellation)” in step S2 → step S7 → step S8) is monitored. , Leakage detection manual selection mode ("Yes (input) (manual release)" in step S2) → Step S7 → "Step S8" is detected when the start is detected ("Yes (input) (manual release)" in step S2) (“There is input (manual cancellation)” in step S2 →
A constant generated by using the program code that activates step S7 → step S8) and the timer function configured by step S3 → “S” of step S5 → step S6 during the operation of the shipping mode process (step S1). Gas sensor 1 at sampling cycle Tc (1 hour cycle shown in FIG. 4)
The LP gas pressure P in 2 is monitored, and the LP gas pressure P during monitoring (step S5) is the normal pressure Pc.
When it exceeds (60 mmH2O) ("≥ (automatic release)" in step S5), the leak detection automatic release mode (step S2
“No input” → “Progress” in step S3 → step S4 →
S5 ≧ (automatic release) → step S7) is activated.

As a result, even if the apparatus is installed in the factory shipment mode in which the LP gas leakage detection function is stopped at the time of factory shipment, the shipment mode processing (step S1)
During the operation of step S3 → step S5, “<” → step S6, the LP gas pressure P in the gas sensor 12 is generated at a constant sampling cycle Tc (one hour cycle shown in FIG. 4) generated using the timer function. Since the start of the leak detection manual selection mode (“input is present (manual cancellation)” in step S2 → step S7 → step S8) is monitored during the monitoring period for monitoring the L gas pressure P during monitoring (step S5) Is the normal pressure Pc (60 mmH2
O) is exceeded (“≧ (automatic cancellation)” in step S5), the constant sampling cycle Tc (FIG. 4) generated by using the timer function including step S3 → “<” in step S5 → step S6. It becomes possible to operate the LP gas leakage detection function by an automatic operation in the one hour period shown in (1). Further, when the activation of the leak detection manual selection mode (“input is present (manual release)” in step S2 → step S7 → step S8) is detected (“entry is present (manual release)” in step S2), the leak detection is manually performed. Selection mode (“Input exists (manual release)” in step S2) → step S
7 → step S8) is activated, the stop of the LP gas supply pressure P is detected using the pressure signal 12a, and automatically set during the shipping mode process (step S1). “<” → The LP gas pressure P in the gas sensor 12 is monitored at a constant sampling cycle Tc (one hour cycle shown in FIG. 4) generated by using the timer function configured in step S6, and monitoring (step S5) is being performed. LP gas pressure P is normal pressure Pc (60 m
mH2O) (“≧ (automatic release)” in step S5), the leak detection automatic release mode (“No input” in step S2 → “Progress” in step S3 → step S4 → S5
≧ (automatic release) → step S7) is activated,
When the LP gas pressure P during monitoring (step S5) exceeds the normal pressure Pc (60 mmH2O) (step S5)
“≧ (automatic release)” of step S3 → step S5 “<” → automatic operation with a constant sampling cycle Tc (one hour cycle shown in FIG. 4) generated using the timer function configured in step S6. Thus, the LP gas leakage detection function can be activated, and the secondary-side LP gas supply system 31A connected to the downstream side (gas water heater 30, ..., 30 side) of the LP gas cutoff valve 21 is connected. When the amount of LP gas used of the supplied LP gas exceeds the normal pressure Pc (60 mmH2O) in the leak detection environment (step S
5 "≧ (automatic release)") can be executed by automatic operation. That is, even when the stop of the LP gas supply pressure P is detected using the pressure signal 12a and the shipping mode release process that is automatically set is not performed, step S3 → step of the LP gas leakage detection function is performed. "<" In S5 →
It enables recovery by automatic operation based on a constant sampling cycle Tc (one hour cycle shown in FIG. 4) generated using the timer function configured in step S6, and LP
LP gas leakage detection device 10 based on the operation of detecting gas leakage
Alternatively, the electronic gas meter 20 can measure the amount of LP gas used.

Here, the normal pressure Pc for activating the leak detection automatic cancellation mode (“No input” in step S2 → “Elapsed” in step S3 → step S4 → ≧ (automatic cancellation) in step S5 → step S7) The logical configuration is such that (60 mmH2O) is the normal pressure Pc (60 mmH2O) after the device is installed.

As a result, even when the LP gas leakage detection function is stopped at the time of factory shipment, the LP gas supply pressure P is detected to be stopped using the pressure signal 12a even when the LP gas leakage detection function is installed in the factory shipment mode. During the shipping mode process (step S1) that is automatically set, the constant sampling cycle Tc (FIG. 4) generated by using the timer function of step S3 → step S5 “<” → step S6. Leak detection manual selection mode (“input is present (manual cancellation)” in step S2 → step S7 → step S8) during a monitoring period in which the LP gas pressure P in the gas sensor 12 is monitored in the intermittent operation cycle Ti shown in FIG. Since the startup of the is being monitored (step S5)
When the LP gas pressure P therein exceeds the normal pressure Pc (60 mmH2O) (“≧ (automatic release)” in step S5), the timer function configured by step S3 → step S5 “<” → step S6 is used. Generated constant sampling cycle Tc (one-hour cycle shown in FIG. 4) or intermittent operation cycle Ti
Thus, the LP gas leakage detection function can be activated by automatic operation. Further, when the activation of the leak detection manual selection mode (“input is present (manual release)” in step S2 → step S7 → step S8) is detected (“input is present (manual release)” in step S2), the leak detection manual selection is made. A shipping mode that is automatically set by activating the mode (“input (manual cancellation) in step S2” → step S7 → step S8) and detecting stop of the LP gas supply pressure P using the pressure signal 12a. During the operation of the process (step S1), a constant sampling cycle Tc (one hour cycle shown in FIG. 4) or an intermittent operation cycle generated by using the timer function configured by step S3 → “<” of step S5 → step S6 The LP gas pressure P in the gas sensor 12 is monitored at Ti, and the LP gas pressure P during monitoring (step S5) is the normal pressure Pc (60 mmH2O). When it exceeds (“≧ (automatic release)” in step S5), leak detection automatic release mode (“no input” in step S2 → “pass” in step S3 → step S4 → ≧ (automatic release) in S5 → step S7 ) Is activated, so monitoring (step S
5) The LP gas pressure P in is the normal pressure Pc (60 mmH2
O) is exceeded (“≧ (automatic cancellation)” in step S5), the constant sampling cycle Tc (FIG. 4) generated by using the timer function including step S3 → “<” in step S5 → step S6. 1 hour cycle) or the intermittent operation cycle Ti, the LP gas leakage detection function can be activated by an automatic operation, and the LP gas cutoff valve 21 is located downstream (on the gas water heater 30, ..., 30 side). When the amount of LP gas used of the LP gas supplied to the secondary LP gas supply system 31A connected to the fuel cell exceeds the normal pressure Pc (60 mmH2O) under the leakage detection environment (step S
5 "≧ (automatic release)") can be executed by automatic operation. That is, even when the stop of the LP gas supply pressure P is detected using the pressure signal 12a and the shipping mode release process that is automatically set is not performed, step S3 → step of the LP gas leakage detection function is performed. "<" In S5 →
Detects leakage of LP gas by enabling recovery by automatic operation based on a constant sampling cycle Tc (one hour cycle shown in FIG. 4) or intermittent operation cycle Ti generated by using the timer function configured in step S6 L under motion
P gas leak detection device 10 or electronic gas meter 20 is L
It becomes possible to measure the amount of P gas used.

Further, since the test switch 22 for inspecting whether the LP gas flow cutoff function operates normally, the shipping mode release command 11a generated in response to the operation of the test switch 22 is provided. When receiving the instruction of "(input is present (manual release)" in step S2), leak detection manual selection mode ("input is present (manual release)" in step S2) →
Step S7 → step S8) will be activated.

As a result, even if the apparatus is installed in the factory shipment mode where the LP gas leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection mode (“input (manual cancellation)” in step S2) → step S7 → step S8) indicates that the LP signal supply pressure P is stopped by the pressure signal 12
a shipping mode release command 11a during the operation of shipping mode processing (step S1) that is automatically detected by using a
When receiving the instruction of (there is an input (manual release) in step S2), the shipping mode process (step S1) is interrupted, the shipping mode is released (step S7), and the LP gas leakage detection function (step S8). Is activated, the LP gas pressure P during monitoring (step S5) is equal to the normal pressure Pc.
When it exceeds (60 mmH2O) (“≧ (automatic release)” in step S5), the LP gas leakage detection function can be activated by an automatic operation, and the LP gas cutoff valve 21 is provided downstream (gas hot water supply). It becomes possible to manually measure the amount of LP gas used of the LP gas supplied to the secondary LP gas supply system 31A connected to the container 30, ..., 30 side) under a leakage detection environment. That is, even if the shipping mode release process is not performed, the LP
It is possible to recover manually by using the test switch 22 having the gas leakage detection function, and the LP gas leakage detection device 10 or the electronic gas meter 2 is operated under the detection operation of the leakage of the LP gas.
0 will be able to measure LP gas usage.

[0079]

According to the first aspect of the present invention, even when the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, the fluid pressure being monitored is the predetermined pressure. It becomes possible to activate and operate the leak detection function by automatic operation when the temperature exceeds the limit, and the working fluid of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve. Amount measurement can be performed automatically in a leak detection environment. That is,
Even if the shipping mode release process is not performed, the leak detection function can be restored by automatic operation, and the fluid leak detection device or the electronic gas meter should measure the fluid usage amount based on the fluid leak detection operation. Will be able to.

According to the invention of claim 2, claim 1
In addition to the effects described in, even when the product is installed in the factory shipment mode where the leak detection function is stopped at the time of factory shipment, it is automatically operated when the fluid pressure being monitored exceeds the predetermined pressure. The leak detection function can now be activated and activated, and the amount of fluid used in the secondary fluid supply system connected downstream of the fluid cutoff valve can be measured under the leak detection environment. Now you can run it automatically. That is, even when the stop of the supply pressure P of the LP gas is detected using the pressure signal 12a and the shipping mode release processing that is automatically set is not performed,
The leak detection function can be restored by automatic operation, and the fluid leak detection device or the electronic gas meter can measure the fluid usage amount based on the operation of detecting the fluid leak.

According to the third aspect of the invention, even when the leak detection automatic release mode is set in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, The stop of the supply pressure P is detected by using the pressure signal 12a, and the fluid pressure in the apparatus is monitored with an intermittent operation cycle during the operation of the shipping mode that is automatically set, and the fluid pressure being monitored exceeds a predetermined pressure. When the fluid pressure being monitored exceeds a predetermined pressure, the leak detection function in the inactive state is activated when it is activated, so that the leak detection function can be activated and activated by automatic operation with an intermittent operation cycle. As a result, the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be automatically measured under the leakage detection environment. That is, even if the shipping mode release processing is not performed, it is possible to recover by an automatic operation based on the intermittent operation cycle of the leak detection function, and the fluid leakage detection device or the electronic device can detect the leakage of fluid based on the operation. Allows gas meters to meter fluid usage.

According to the fourth aspect of the invention, even when the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, it is operated at a constant sampling period during the operation in the shipment mode. Since the start of the leak detection manual selection mode is monitored during the monitoring period during which the fluid pressure inside the equipment is monitored, the leak detection function is activated automatically by a fixed sampling cycle when the fluid pressure being monitored exceeds a specified pressure. It becomes possible to operate it. Further, when the activation of the leak detection manual selection mode is detected, the leak detection manual selection mode is activated, and the fluid pressure in the device is monitored at a fixed sampling cycle during the operation in the shipping mode. When the fluid pressure being monitored exceeds the predetermined pressure, the leak detection automatic release mode is activated when the leak detection automatic release mode is exceeded, so that the leak detection function can be activated and activated automatically by a constant sampling period. Therefore, it is possible to automatically measure the amount of used fluid of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve when the pressure exceeds a predetermined pressure in a leak detection environment. become. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by an automatic operation based on a fixed sampling period, and the fluid leakage detection device or the electronic device can detect the leakage of the fluid based on the operation. Allows gas meters to meter fluid usage.

According to the fifth aspect of the present invention, even when the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment, the sampling period or The activation of the leak detection manual selection mode is monitored during the monitoring period in which the fluid pressure in the device is monitored at the intermittent operation cycle.Therefore, when the fluid pressure being monitored exceeds the normal pressure, a constant sampling cycle or intermittent operation cycle is set. It becomes possible to activate and operate the leak detection function by automatic operation. Further, when the activation of the leak detection manual selection mode is detected, the leak detection manual selection mode is activated, and the fluid pressure in the device is monitored at a constant sampling cycle or intermittent operation cycle during the operation in the shipping mode, and the fluid being monitored is monitored. When the pressure exceeds the normal pressure, the leak detection automatic release mode is activated, so when the fluid pressure being monitored exceeds the normal pressure, the leak detection function is activated automatically by a fixed sampling cycle or intermittent operation cycle. It has become possible to operate by the operation, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve exceeds the normal pressure in the leakage detection environment. It will be possible to execute it automatically. That is, even if the shipping mode release process is not performed, it is possible to recover by automatic operation based on the constant sampling cycle or intermittent operation cycle of the leak detection function, and the fluid leakage is detected under the detection operation. A sensing device or electronic gas meter will be able to meter the fluid usage.

According to the sixth aspect of the present invention, even when the leakage detection manual selection mode is set to the shipping mode even when the leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection mode is installed. When the instruction to release the shipping mode is received during operation, the shipping mode is released and the leak detection function is activated, so when the fluid pressure being monitored exceeds the specified pressure, the leak detection function is activated automatically. It becomes possible to operate by converting into the operation, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve is measured by manual operation in the leak detection environment. become able to. That is, even if the shipping mode release process is not performed, it is possible to recover by manual operation using the test switch of the leak detection function, and the fluid leak detection device or the electronic gas meter is operated based on the fluid leak detection operation. It becomes possible to measure the amount of fluid used.

According to the seventh aspect of the present invention, even when the leakage detection manual selecting means is installed in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection means The stop of the supply pressure P is detected by using the pressure signal 12a, and the shipping mode is released when the instruction of the shipping mode release command is received using the shipping mode release switch during the operation of the shipping mode which is automatically set. Since the leak detection function is activated by the automatic leak control function, the leak detection function can be activated and activated by automatic operation when the fluid pressure being monitored exceeds a predetermined pressure. The amount of used fluid of the fluid supplied to the connected secondary side fluid supply system can be measured by a manual operation in a leak detection environment. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and the fluid leak detection device or the electronic gas meter measures the fluid usage amount based on the fluid leak detection operation. You will be able to. In addition, even if the device is installed in the factory shipment mode in which the function is stopped, the leak detection automatic cancellation means monitors the fluid pressure in the device during the operation in the shipment mode, and When the fluid pressure exceeds the specified pressure, the leak detection function that is in an inactive state is activated, so when the monitored fluid pressure exceeds the specified pressure, activate the leak detection function by automatic operation. As a result, the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be automatically measured under the leakage detection environment. In other words, even if the shipping mode release process is not performed, the leak detection function can be restored by automatic operation, and the fluid leak detection device or the electronic gas meter measures the fluid usage amount based on the fluid leak detection operation. You will be able to.

According to the invention described in claim 8, claim 7 is provided.
In addition to the effect described in, even if the product is installed in the factory shipment mode where the leak detection function is stopped at the time of factory shipment, the leak detection manual selection means releases the shipment mode during the operation of the shipment mode. When the instruction of the command is received using the shipping mode release switch, the shipping mode is released and the leak detection function is activated, so when the fluid pressure being monitored exceeds the predetermined pressure, the leak detection function is automatically operated. It becomes possible to activate and operate, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system that is connected to the downstream side of the fluid cutoff valve can be measured manually in a leak detection environment. You will be able to execute. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery can be minimized to detect the fluid leakage. Under operation, a fluid leak detection device or electronic gas meter can meter the fluid usage. In addition, even when installed in the factory shipment mode where the function is stopped, the leak detection automatic cancellation means monitors the fluid pressure in the device during the operation of the shipment mode,
When the monitored fluid pressure exceeds the specified pressure, the leak detection function in the inactive state is activated.When the monitored fluid pressure exceeds the specified pressure, the leak detection function is activated automatically. It becomes possible to operate, so that the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be automatically measured under the leakage detection environment. become. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by automatic operation, and at the same time, the consumption of the battery can be minimized to detect the fluid leakage. Under operation, a fluid leak detection device or electronic gas meter can meter the fluid usage.

According to the invention of claim 9, claim 7
Alternatively, in addition to the effect described in 8, even when the leakage detection manual selection unit is installed in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment, the leakage detection manual selection unit intermittently operates during the operation of the shipment mode. The activation of the leak detection manual selection mode is monitored according to the operation cycle, and when the instruction of the shipping mode release command is received using the shipping mode release switch during the operation of the shipping mode, the shipping mode is released and the leak detection function is activated. Therefore, when the fluid pressure being monitored exceeds a predetermined pressure, the leak detection function can be activated and activated by automatic operation, and the secondary side connected downstream of the fluid cutoff valve can be activated. The amount of fluid used of the fluid supplied to the fluid supply system can be measured by manual operation in a leak detection environment. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery can be minimized to detect the fluid leakage. Under operation, a fluid leak detection device or electronic gas meter can meter the fluid usage. In addition, even when installed in the factory shipment mode where the function is stopped, the automatic leak detection cancellation means monitors the fluid pressure in the device with an intermittent operation cycle during operation in the shipment mode. When the fluid pressure being monitored exceeds the specified pressure, the leak detection function in the inactive state is activated, so when the monitored fluid pressure exceeds the specified pressure, the leak detection function is activated automatically. It becomes possible to operate by the automatic operation with the intermittent operation cycle under the leak detection environment to measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve. It can be executed by operation. That is, even when the shipping mode release process is not performed, it is possible to recover the leakage detection function by automatic operation with an intermittent operation cycle, and at the same time,
It will be possible to minimize the consumption of the battery,
The fluid leakage detection device or the electronic gas meter can measure the fluid usage amount based on the operation of detecting the fluid leakage.

According to the invention as set forth in claim 10, in addition to the effect as set forth in claim 7 or 8, it is a case where the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. Even if the leak detection manual selection means monitors the start of the leak detection manual selection mode at a fixed sampling period during the operation in the shipping mode, and uses the shipping mode release switch to issue the instruction of the shipping mode release command during the operation in the shipping mode. If the fluid pressure being monitored exceeds a predetermined pressure, the leak detection function can be activated and activated automatically when the fluid pressure being monitored exceeds a predetermined pressure. Therefore, the amount of used fluid of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be measured manually in the leak detection environment. So as to. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery can be minimized to detect the fluid leakage. Under operation, a fluid leak detection device or electronic gas meter can meter the fluid usage.
In addition, even when installed in the factory shipment mode where the function is stopped, the automatic leak detection cancellation means monitors the fluid pressure in the device at a fixed sampling period during operation in the shipment mode. When the fluid pressure being monitored exceeds the specified pressure, the leak detection function in the inactive state is activated, so when the monitored fluid pressure exceeds the specified pressure, the leak detection function is activated automatically. It is possible to operate by automatic operation with a constant sampling period under a leak detection environment to measure the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve. It can be executed by operation. In other words, even if the shipping mode release processing is not performed, it becomes possible to return the leakage detection function by automatic operation at a fixed sampling cycle, and at the same time, it is possible to minimize battery consumption. The fluid leakage detection device or the electronic gas meter can measure the amount of fluid used based on the leakage detection operation.

According to the eleventh aspect of the invention, in addition to the effect of the seventh aspect, even when the apparatus is installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. The leak detection manual selection means monitors the start of the leak detection manual selection mode at an intermittent operation cycle or a fixed sampling cycle during the operation in the shipping mode, and outputs the instruction for the shipping mode cancellation command during the operation in the shipping mode. When it is received using, the shipping mode is released and the leak detection function is activated, so when the normal pressure being monitored exceeds a predetermined pressure, the leak detection function can be activated and operated by automatic operation. The amount of fluid used in the secondary fluid supply system connected to the downstream side of the fluid cutoff valve can be measured manually in a leak detection environment. It will be able to run. That is,
Even if the shipping mode release processing is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery can be minimized. The fluid leak detector or electronic gas meter is now able to meter the fluid usage. In addition, even if the equipment is installed in the factory shipment mode where the function is stopped, the automatic leakage detection cancellation means operates normally in the equipment with an intermittent operation cycle or a fixed sampling cycle during operation in the shipment mode. It monitors the pressure and activates the leak detection function that is inactive when the normal pressure being monitored exceeds the specified pressure, so when the normal pressure being monitored exceeds the specified pressure, leak detection is performed automatically. The function can be activated and activated, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve is intermittently measured under a leak detection environment. It can be performed by an automatic operation with an operation cycle or a fixed sampling cycle. That is, even if the shipping mode release processing is not performed, it is possible to recover the leakage detection function automatically by an intermittent operation cycle or a fixed sampling cycle, and at the same time, it is possible to minimize battery consumption. Therefore, the fluid leak detection device or the electronic gas meter can measure the fluid usage based on the fluid leak detection operation.

According to the twelfth aspect of the invention, in addition to the effect of the first aspect, even when installed in the factory shipment mode in which the leak detection function is stopped at the time of factory shipment. , Leak detection manual selection mode releases the shipping mode and activates the leak detection function when the shipping mode release command is received during the operation of the shipping mode, so the fluid pressure being monitored exceeds the predetermined pressure. When this happens, the leak detection function can be activated and activated by automatic operation, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected downstream of the fluid cutoff valve Weighing can now be performed manually in a leak detection environment. That is, even if the shipping mode release process is not performed, it is possible to recover by manual operation using the test switch of the leak detection function, and the fluid leak detection device or the electronic gas meter is operated based on the fluid leak detection operation. It becomes possible to measure the amount of fluid used.

According to the invention described in claim 13, in addition to the effect described in any one of claims 7 to 12, the installation is performed in the factory shipment mode in which the leakage detection function is stopped at the time of factory shipment. Even if the leakage detection manual selection means provided in the leakage detection device monitors the activation of the leakage detection manual selection mode at an intermittent operation cycle or a fixed sampling cycle during operation in the shipping mode, When the shipping mode release command is received during operation using the shipping mode release switch, the shipping mode is released and the leak detection function is activated, so when the normal pressure being monitored exceeds the specified pressure, the automatic The leak detection function can be activated and operated by the operation, and the use of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be used. Weighing the fluid amount can be executed by a manual operation under a leak detection environment. That is, even if the shipping mode release process is not performed, the leak detection function can be restored by manual operation, and at the same time, the consumption of the battery can be minimized to detect the fluid leakage. Under operation, a fluid leak detection device or electronic gas meter can meter the fluid usage. In addition, even when installed in the factory shipment mode in which the function is stopped, the leak detection automatic canceling means provided in the leak detection device is operated intermittently during the shipment mode or at a constant interval. The normal pressure in the device is monitored at the sampling cycle, and when the normal pressure being monitored exceeds the predetermined pressure, the leak detection function that is in an inactive state is activated, so the normal pressure being monitored exceeds the predetermined pressure. At this time, the leak detection function can be activated and operated by automatic operation, and the amount of fluid used of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve can be measured. Can be performed automatically in a leak detection environment with an intermittent operation cycle or a fixed sampling cycle. That is, even if the shipping mode release processing is not performed, it is possible to recover the leakage detection function automatically by an intermittent operation cycle or a fixed sampling cycle, and at the same time, it is possible to minimize battery consumption. Therefore, the fluid leak detection device or the electronic gas meter can measure the fluid usage based on the fluid leak detection operation. In addition, by providing the gas shutoff means, the shutoff control of the gas to the gas shutoff valve can be performed when the shutoff event is detected, and the gas shutoff control that shuts off the gas supply to the secondary side gas supply system can be performed. By providing the combustion control means, it becomes possible to operate the gas equipment connected to the gas supply path and execute combustion control for the gas equipment.

[Brief description of drawings]

FIG. 1 is a functional block diagram for explaining an embodiment of a gas leak detection device and an electronic gas meter that execute a shipping mode releasing method according to an embodiment of the present invention.

FIG. 2 is a flow chart for explaining an embodiment of factory pre-processing performed by the gas leak detection device and the electronic gas meter of FIG.

FIG. 3 is a flowchart for explaining an embodiment of a shipping mode releasing method executed by the gas leak detection device and the electronic gas meter of FIG.

FIG. 4 is a timing chart for explaining the operation of the gas leak detection device and the electronic gas meter in the shipping mode releasing method of FIG.

FIG. 5 is a perspective view showing a conventional shipping mode releasing method, a gas leakage detection device, and an electronic gas meter.

[Explanation of Codes] 10 ... Leakage detection device 11 ... Shipping mode release switch 11a ... Shipping mode release command 12 ... Fluid sensor 12a ... Pressure signal 13 ... Shipping mode control means 13a ... Shipping mode control signal 14 ... Leakage detection manual selection means 14a Leak detection manual selection mode signal 15 Leak detection automatic release means 15a Leak detection automatic release mode signal 16 Battery 16a Electric power 20 Electronic gas meter 21 Fluid cutoff valve (or gas cutoff valve) 22 Test switch 23 Gas Cutoff means 23a ... Gas cutoff signal 24 ... Combustion control means 24a ... Combustion control signal 30, ..., 30 ... Gas equipment 31 ... Gas supply path 31A ... Secondary side fluid supply system (or secondary side gas supply system) P ... Fluid Pressure (or gas pressure) Pc ... Predetermined pressure (or normal pressure) Tc ... Constant sampling cycle Ti ... Intermittent operation cycle

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01F 1/00-9/02

Claims (13)

(57) [Claims] 1. A shipping mode canceling method for canceling a shipping mode for inactivating the leak detecting function at the time of factory shipment of an apparatus having a leak detecting function for detecting an abnormal flow rate of a fluid. Leak detection manual selection that activates the leak detection function by canceling the shipping mode when a shipping mode release command is received during operation of the shipping mode that is automatically set by detecting pressure stop A shipping mode releasing method having a mode. 2. A shipping mode canceling method for canceling a shipping mode for deactivating the leak detecting function at the time of factory shipment of an apparatus having a leak detecting function for detecting an abnormal flow rate of a fluid, the method comprising: The fluid pressure in the device is monitored during the operation of the shipping mode which is automatically set by detecting the stop of the pressure, and the leakage which is in the inactive state when the monitored fluid pressure exceeds a predetermined pressure. A shipment mode releasing method having a leak detection automatic releasing mode for activating a detection function. 3. The leak detection manual selection mode and the leak detection automatic cancellation mode are provided, and the activation of the leak detection manual selection mode is monitored with an intermittent operation cycle during the operation of the shipping mode, and the leak detection manual selection is performed. The step of activating the leak detection manual selection mode when the activation of the mode is detected, and the fluid pressure in the device is monitored with the intermittent operation cycle during the operation of the shipping mode, and the fluid pressure being monitored is 3. The method of releasing the shipping mode according to claim 1 or 2, further comprising the step of activating the leak detection automatic release mode when a predetermined pressure is exceeded. 4. The leak detection manual selection mode comprising the leak detection manual selection mode and the leak detection automatic release mode, wherein the leak detection manual selection mode is set during a monitoring period in which the fluid pressure in the apparatus is monitored at a constant sampling period during the operation of the shipping mode. The activation of the leakage detection manual selection mode is detected when the activation of the leakage detection manual selection mode is detected, and the fluid pressure in the device is controlled at the constant sampling period during the operation of the shipping mode. Monitoring, and activating the leak detection automatic release mode when the monitored fluid pressure exceeds the predetermined pressure, the shipping mode release according to claim 1 or 2. Method. 5. The shipping mode according to claim 2, wherein the predetermined pressure for activating the leak detection automatic cancellation mode is a normal pressure after installation of the device. How to release. 6. In the case of having a test switch for inspecting whether or not the fluid flow cutoff function operates normally, an instruction of the shipping mode release command generated in response to the operation of the test switch is received. The shipping mode releasing method according to claim 3, further comprising a step of activating the leak detection manual selection mode. 7. A supply abnormality of the fluid supplied to the secondary side fluid supply system connected to the downstream side of the fluid cutoff valve is detected to shut off the supply of the fluid, and to the secondary side fluid supply system. In the leak detection device having a function of detecting that the supply abnormality of the supplied fluid has been released and restoring the supply of the fluid, in the shipment mode which is automatically set by detecting the stop of the supply pressure of the fluid. A shipping mode cancel switch for generating a shipping mode cancel command for instructing cancellation; a fluid sensor for monitoring a fluid pressure upstream of the shutoff valve 12 in the apparatus to generate a pressure signal during the operation of the shipping mode; Shipment mode control means for generating a shipment mode control signal for controlling inactivation / activation of the leak detection function at the time of factory shipment of a device having a leak detection function for detecting the abnormal flow rate of Leak detection manual selection for instructing execution of the leak detection manual selection mode for canceling the shipping mode and activating the leak detection function when receiving the instruction of the shipping mode release command Leak detection manual selection for generating a mode signal Means for monitoring the fluid pressure based on the pressure signal during operation in the shipping mode, and activating the leak detection function in an inactive state when the monitored fluid pressure exceeds a predetermined pressure. A leak detection automatic canceling means for generating a leak detection automatic cancellation mode signal for instructing execution of the detection automatic cancellation mode. 8. A battery for supplying electric power necessary for the operation of the apparatus, wherein the shipping mode release switch, the fluid sensor, the shipping mode control means, the leak detection manual selection means, and the leak detection automatic release means are provided. The leak detection device according to claim 7, wherein the leak detection device operates using the electric power received from the battery at least during a period from the time of factory shipment to the start of the leak detection function. 9. The leakage detection manual selection means monitors the activation of the leakage detection manual selection mode with an intermittent operation cycle during the operation of the shipping mode, and detects the activation of the leakage detection manual selection mode. It is configured to activate a leak detection manual selection mode, the leak detection automatic canceling means monitors the fluid pressure in the device with the intermittent operation cycle during the operation of the shipping mode,
9. The leak detection device according to claim 7, wherein the leak detection automatic release mode is activated when the monitored fluid pressure exceeds the predetermined pressure. 10. The leak detection manual selection means monitors activation of the leak detection manual selection mode during a monitoring period during which the fluid pressure in the apparatus is monitored at a constant sampling period during the operation of the shipping mode, and the leak detection is performed. When the activation of the manual selection mode is detected, the leakage detection manual selection mode is configured to be activated, and the leakage detection automatic canceling unit is configured such that the fluid pressure in the device at the constant sampling cycle during the operation of the shipping mode. 9. The leakage detection according to claim 7, wherein the leakage detection automatic release mode is activated when the fluid pressure being monitored exceeds the predetermined pressure. apparatus. 11. The leak detection automatic canceling means monitors the fluid pressure based on the pressure signal during the operation in the shipping mode, and becomes inactive when the monitored fluid pressure exceeds a normal pressure. The leak detection device according to claim 7, wherein the leak detection device is configured to execute a leak detection automatic canceling mode that activates a certain leak detection function. 12. The shipment generated according to the operation of the test switch, when the leak detection manual selection means has a test switch for inspecting whether the fluid flow cutoff function normally operates. The leak detection device according to claim 7, wherein the leak detection manual selection mode is configured to be activated when an instruction of a mode release command is received. 13. The gas supply is cut off by measuring the amount of used gas and detecting an abnormal supply of the gas supplied to the secondary side gas supply system connected to the downstream side of the gas cutoff valve as a cutoff event. In addition, in the electronic gas meter which detects that the supply abnormality of the gas supplied to the secondary side gas supply system has been released and restores the supply of the gas, the leak detection device that detects the gas as the fluid and the cutoff When an event is detected, a gas cutoff means for executing a gas cutoff control for executing a gas cutoff control to cut off the gas supply to the secondary side gas supply system, and a gas cutoff means for generating a gas cutoff signal. Combustion control means for generating a combustion control signal for operating the connected gas equipment to execute combustion control, and a gas supply passage provided in accordance with the gas cut-off signal. Supply one Electronic gas meter with leakage detection device according to any one of claims 7 to 12, characterized in that it has a gas shut-off valve for interrupting manner.