JP6804368B2 - Gas detector inspection processing system - Google Patents

Description

The present invention includes a housing unit for accommodating a gas detector that outputs a predetermined gas alarm according to the state of a detection component in the introduced gas introduced from the gas introduction unit, and the gas detector housed in the storage unit. The present invention relates to an inspection processing system for a gas detector provided with an inspection processing means for executing an inspection process for inspecting the state of the gas detector by supplying inspection gas to a gas introduction unit.

When using a gas detector with a gas alarm function that outputs an alarm according to the state of detection components such as carbon monoxide and flammable gas in the air, whether or not the state of the gas detector is normal It needs to be inspected regularly. Therefore, an inspection processing system for automatically inspecting such a gas detector is known (see, for example, Patent Document 1).

In the inspection processing system of the gas detector of Patent Document 1, as the above inspection processing, a bump test is performed by supplying inspection gas to the gas introduction portion of the gas detector and confirming whether or not there is an abnormality in the gas alarm function of the gas detector. The gas alarm confirmation process (confirmation test process), which is also called, is executed. Specifically, in this gas alarm confirmation process, the gas supply unit (gas supply tube connection unit 75) is compared with the gas detectors (gas detectors 10A, 10B) housed in the storage unit (mounting units 50, 55). The inspection gas (specific gas) is supplied through the gas detector to check whether the concentration indicated value of the gas detector is appropriate.

Japanese Unexamined Patent Publication No. 2013-257160

In the inspection processing system of a conventional gas detector, in the inspection processing, the raw material gas stored in a compressed state in a gas container such as a cylinder is decompressed by a decompressor such as a pressure regulator and taken out, and the taken out raw material gas is used for inspection. It is configured to supply the gas detector as gas. In general, such a decompressor has a limited allowable flow rate range in which a stable flow rate can be secured. Therefore, if the flow rate of the raw material gas required for the inspection process falls below the allowable flow rate range of the decompressor, the decompressor may lock up or chatter, and the raw material gas may not be successfully taken out from the gas container. On the contrary, if the flow rate of the raw material gas required for the inspection process exceeds the allowable flow rate range of the decompressor, the decompressor becomes fully open and the pressure adjustment ability is lost, resulting in unstable flow rate of the raw material gas. It may not be possible to obtain accurate inspection results.

Further, in the inspection processing system of the gas detector, in the inspection processing, for example, the presence or absence of abnormality of the gas alarm function in the gas detector is confirmed, the sensitivity of the gas detector is calibrated, and the like. It is being considered to change the execution state of the treatment, and in this case, the flow rate of the raw material gas required for each treatment is different. However, since the allowable flow rate range of the decompressor is limited as described above, it is difficult to change the execution state of the inspection process in this way.

In view of this situation, the main subject of the present invention is to inspect the state of the gas detector by depressurizing the raw material gas stored in the gas container in a compressed state, taking it out, and supplying it to the gas detector as an inspection gas. In the inspection processing system of a gas detector that executes inspection processing, it is possible to accurately and stably take out the raw material gas from the gas container and supply it to the gas detector as inspection gas as the execution state of the inspection processing changes. The point is to provide the technology that can be done.

The first characteristic configuration of the present invention is a gas of the gas detector with respect to a gas detector having a gas alarm function that outputs a predetermined gas alarm according to the state of the detection component in the introduced gas introduced from the gas introduction unit. It is an inspection processing system for gas detectors equipped with inspection processing means that supplies inspection gas to the introduction section and executes inspection processing to inspect the condition of the gas detector.
A gas container connection portion to which a gas container for storing the raw material gas as a raw material for the inspection gas in a compressed state is connected, and
A decompression means for decompressing and taking out the raw material gas from the gas container connected to the gas container connection portion is provided.
The depressurizing means is configured to have a plurality of decompressors and to have a variable number of decompression stages in which the number of decompression stages, which is the number of decompressors through which the raw material gas passes, can be changed.
The point is that the number of decompression stages adjusting means for adjusting the number of decompression stages of the decompression means is provided according to the execution state of the inspection process by the inspection processing means.

According to this configuration, when the raw material gas is decompressed from the gas container by the decompression means and taken out and supplied to the gas detector in the inspection process, the number of decompressors through which the raw material gas in the decompression means passes by the decompression stage number adjusting means. The number of decompression stages can be appropriately adjusted according to the execution status of the inspection process. That is, when it is assumed that the raw material gas cannot be taken out from the gas container well if the flow rate of the raw material gas required for the inspection process is small and the number of decompression stages is large, the number of decompression stages is reduced by the decompression stage number adjusting means. By adjusting to the side, the raw material gas can be reliably taken out from the gas container and supplied to the gas detector as inspection gas. On the other hand, if the flow rate of the raw material gas required for the inspection process is large and it is assumed that the flow rate of the raw material gas becomes unstable if the number of decompression stages is reduced, the number of decompression stages is adjusted to the increasing side by the decompression stage number adjusting means. By doing so, the flow rate of the raw material gas taken out from the gas container can be stabilized.
Therefore, according to the present invention, the inspection processing system of the gas detector capable of accurately and stably taking out the raw material gas from the gas container and supplying it to the gas detector as the inspection gas as the execution state of the inspection processing changes. Can be provided.

The second characteristic configuration of the present invention includes a dilution treatment means for producing a dilution gas by diluting the raw material gas after decompression with the decompression means in the atmosphere.
As the inspection process, the inspection processing means supplies the diluted gas generated by the dilution processing means to the gas introduction portion of the gas detector as the inspection gas, and confirms whether or not there is an abnormality in the gas alarm function. The confirmation process and the calibration process of supplying the raw material gas taken out from the gas container to the gas introduction portion of the gas detector as the inspection gas and calibrating the sensitivity of the gas detector are executed.
The point is that the decompression stage number adjusting means sets the number of decompression stages of the decompression means when the dilution treatment means is operating to be smaller than the number of decompression stages of the decompression means when the dilution treatment means is not operating.

According to this configuration, by providing the above-mentioned dilution treatment means, it is possible to seal the high-concentration raw material gas in the gas container instead of sealing and storing the inspection gas in the gas container as it is. Then, when the gas alarm confirmation process is executed as the inspection process, the dilution processing means is operated to dilute the raw material gas with the atmosphere to generate the inspection gas. Therefore, the gas container is used as the inspection gas. The capacity can be smaller than the required amount. On the other hand, when the calibration process is executed as the inspection process, the raw material gas taken out from the gas container is used as the inspection gas without being diluted without operating the dilution processing means, so that the raw material has a stable concentration. Gas can be used to accurately calibrate the sensitivity of the gas detector.
Further, since the flow rate of the required raw material gas is reduced when the diluting processing means is operated due to the execution of the gas alarm confirmation process, the number of decompression stages is relatively small, and the raw material gas can be reliably taken out from the gas container. On the other hand, when the diluting treatment means is not operating due to the execution of the calibration process, the flow rate of the required raw material gas increases, so the number of decompression stages is relatively increased and the raw material taken out from the gas container is taken out. It is possible to stabilize the gas flow rate.

The third characteristic configuration of the present invention is that the decompression means is an upper decompressor connected to the gas container connection portion, a lower decompressor connected to the secondary side of the upper decompressor, and the upper decompressor. The point is that it is composed of a bypass path connecting the secondary side and the secondary side of the lower decompressor, and a bypass valve capable of opening and closing the bypass path.

According to this configuration, in the decompression means, the bypass valve is operated to stop the flow of the raw material gas to the bypass path, so that the raw material gas flowing out of the gas container is transferred to the upper decompressor and the lower decompressor. It is possible to set the number of decompression stages to the two stages on the side with the larger number of decompression stages by passing them in order. On the other hand, in the decompression means, by operating the bypass valve to allow the raw material gas to flow through the bypass path, the raw material gas flowing out of the gas container is allowed to flow only through the upper decompressor, and the number of decompression stages is increased. It can be set to one stage on the lesser side.

The fourth characteristic configuration of the present invention includes the pair of gas container connecting portions.
The decompression means connected to the gas container connection portion is configured to have a variable number of decompression stages.
The other point is that the decompression means connected to the gas container connecting portion is configured in a fixed number of decompression stages in which the number of decompression stages is fixed.

According to this configuration, by providing a pair of gas container connecting portions, two types of gas containers having different raw material gases are connected to the gas container connecting portion, and the raw material used according to the execution state of the inspection process for the gas detector. You can choose the gas. Further, of the pair of decompression means corresponding to the pair of gas container connection portions, one is configured to have a variable number of decompression stages and the other is configured to have a fixed number of decompression stages, so that both of the pair of decompression means have the number of decompression stages. It is possible to realize simplification and cost reduction of the configuration as compared with the case of the variable configuration. When the flow rate of the required raw material gas changes according to the execution state of the inspection process, the raw material gas is taken out by using the decompression means with a variable number of decompression stages, and the necessary raw material is taken out according to the execution state of the inspection process. When the flow rate of the gas does not change, the inspection process can be appropriately executed in the form of taking out the raw material gas by using the decompression means of the fixed number of decompression stages.

External view of gas detector inspection processing system Top view explaining the schematic configuration of the gas detector and the internal configuration of the adapter containing the gas detector. An exploded perspective view of the adapter Flow chart showing the flow of the inspection processing method implemented by the inspection processing system A flow chart showing the flow of the inspection process executed by the inspection process method of FIG. The figure which shows the display example of the display of the inspection processing system The figure which shows the operating state and the gas flow state of various auxiliary machines in the initial confirmation process. The figure which shows the operating state and the gas flow state of various auxiliary machines in the blockage alarm confirmation process and the concentration stabilization process. The figure which shows the operating state of various auxiliary machines, and the gas flow state in the suction flow rate confirmation process and the concentration stabilization process. The figure which shows the operating state and the gas flow state of various auxiliary machines in the concentration stabilization process in a standby state The figure which shows the operating state and the gas flow state of various auxiliary machines in the gas alarm confirmation process in an inspection process. The figure which shows the operating state and the gas flow state of various auxiliary machines in a cleaning process. The figure which shows the operating state and the gas flow state of various auxiliary machines in the calibration process in an inspection process. Diagram showing the configuration of control and communication in the inspection system, containment unit, and gas detector The figure which shows another operation state and gas flow state of various auxiliary machines in a gas alarm confirmation process in an inspection process. The figure which shows another operating state and gas flow state of various auxiliary machines in the calibration process in an inspection process.

An embodiment of the present invention will be described with reference to the drawings.
The inspection processing system 100 shown in FIG. 1 is configured as a system for implementing an inspection processing method for inspecting the state of the gas detector 70, and an accommodating portion 5 for accommodating the gas detector 70 is provided on the front surface. The system main body 1 is provided with an adapter 50 that is detachably attached to the accommodating portion 5 and enables accommodating the gas detector 70 in the accommodating portion 5.

In the present application, the surface of the system main body 1 on which the accommodating portion 5 and the display 3 are provided (the front surface in FIG. 1, the lower surface in FIG. 2, and the left front surface in FIG. 3) is referred to as "front". , The direction in which the front faces is called the "front direction". On the other hand, the surface opposite to the front surface is called the "back surface", and the direction in which the back surface faces is called the "depth direction". Further, the left side in front view is simply called "left side", and the right side in front view is simply called "right side".

[Gas detector]
First, the configuration of the gas detector 70 will be described with reference to FIGS. 1 and 2.
The gas detector 70 will be described in detail later, but is determined according to the state of, for example, flammable gas (hydrogen, methane, propane, etc.) or carbon monoxide as a detection component in the introduced gas introduced from the gas introduction unit 72. It has a gas alarm function that outputs a gas alarm of the above, and also has a blockage alarm function that outputs a predetermined blockage alarm when the gas introduction unit 72 is blocked.

Specifically, the gas detector 70 includes a detector main body 71 and a gas introduction unit 72 for introducing gas into the detector main body 71.
The gas introduction portion 72 is composed of a substantially tubular tubular portion 74 projecting from the detector main body 71, and a pointed suction nozzle 73 connected to the tip end side of the tubular portion 74. On the other hand, a suction pump 75 for sucking external gas via the gas introduction unit 72 is provided in the detector main body 71, whereby the gas detector 70 positively moves from the suction nozzle 73. It is configured as a suction type that sucks gas into the air.
Further, a sensor unit 76 composed of a sensor element or the like to which the introduced gas sucked by the suction pump 75 is supplied into the detector main body 71 and is sensitive to the detection component in the introduced gas, and a control unit including a computer. 78 etc. are provided.

A display operation unit 80 for performing a predetermined display or input operation is provided on the front surface of the gas detector 70, and the control unit 78 obtains the detection component concentration in the introduced gas from the output signal of the sensor unit 76. A predetermined gas is displayed on the display operation unit 80 provided on the detector main body 71, and when the flammable gas concentration exceeds the permissible range, the display operation unit 80 is notified of the display. An alarm display (an example of a gas alarm) is displayed, and a speaker 82 provided in the detector main body 71 is configured to generate a predetermined gas alarm sound (an example of a gas alarm). And such a function is called a gas alarm function.

Further, the control unit 78 of the gas detector 70 monitors the load of the suction pump 75 (hereinafter referred to as “pump load”) by the current value of the drive power of the suction pump 75 or the like when the suction pump 75 is operating. If the pump load is abnormally high when the suction pump 75 is operating, it is determined that the state of the gas introduction unit 72 is a closed state in which the gas introduction unit 72 is blocked by dust or the like. Then, in order to notify the operator of this blockage state as a blockage abnormality, a predetermined blockage alarm display is displayed on the display operation unit 80, and the speaker 82 is configured to generate a predetermined blockage alarm sound. There is. And such a function is called a blockage alarm function.

On the side surface side of the detector main body 71, an exhaust unit 77 that discharges gas that has passed through the sensor unit 76 and a communication element 79 for the control unit 78 to perform infrared communication with the outside are arranged. ..

Further, the gas detector 70 includes a gas detector 70 for a single component whose detection target is a single detection component and a gas detector 70 for a plurality of components whose detection target is a plurality of detection components. The gas detector 70 for a plurality of components operates in a main detection mode in which the main detection component is a detection target, and detects a sub-detection component different from the main detection component by a mode switching operation in the main detection mode. It operates in the sub-detection mode.

[Inspection processing system]
Next, the detailed configuration of the inspection processing system 100, that is, the detailed configuration of the system main body 1 and the adapter 50 included in the inspection processing system 100 will be described in order.
In the following description, an example in which the inspection target of the inspection processing system 100 is the suction type gas detector 70 will be described, but in addition to the suction type gas detector 70, gas is naturally introduced into the sensor unit. A diffusion type gas detector may be inspected. In this case, necessary processing may be added as appropriate or unnecessary processing may be omitted as appropriate.

[System body]
Next, the configuration of the system main body 1 included in the inspection processing system 100 will be described with reference to FIGS. 1, 2, and 7 to 14.
As shown in FIG. 1, four accommodating portions 5 for accommodating the gas detector 70 are provided on the front surface of the system main body 1, so that a plurality of the gas detector 70 can be inspected. Is possible. In addition to the accommodating portion 5, devices such as a display 3, other operation switches, and speakers are arranged on the front surface of the system main body 1, and further, a sensor portion 76 of the gas detector 70 to be inspected. Each of the two gas containers C1 and C2 for storing the raw material gas containing the detection component to which the sensor is sensitive is detachably attached to the pair of gas container connecting portions C1a and C2a. Although the details will be described later, the raw material gas stored in the gas containers C1 and C2 is appropriately diluted in the atmosphere and used as an inspection gas.

The adapter 50 mounted on the accommodating portion 5 of the system main body 1 can accommodate a single component gas detector 70 that can accommodate a single component gas detector 70 and a gas detector 70 that can accommodate a plurality of components. There is one for multiple components. Then, by mounting the two types of gas containers C1 and C2 that store the raw material gases of different components in the gas container connecting portions C1a and C2a, the inspection processing system 100 is equipped with an adapter for a plurality of components mounted in the accommodating portion 5. When a gas detector 70 for a plurality of components is housed in the 50, a plurality of types of inspection gases can be selectively supplied to the gas detector 70.

Each of the four accommodating portions 5 is formed as a common rectangular cross-sectional recess that opens to the front side.
As shown in FIGS. 1 and 2, on the inner inner surface side of the accommodating portion 5, the air supply unit is a gas supply unit for supplying gas such as inspection gas to the gas introduction unit 72 of the gas detector 70. It is connected to the joint 5a, the exhaust joint 5b, which is an exhaust suction part for sucking the exhaust discharged from the gas detector 70 and discharging it to the outside, and the connector 55 of the base 52 provided on the adapter 50. The connector 5c is arranged.
In FIG. 1, the accommodating portion 5 to which the adapter 50 is not attached is provided with a cover 5d on the front surface thereof in order to prevent the gas detector 70 from being erroneously inserted.

As shown in FIG. 14, the connector 5c is connected to a control unit 2 composed of a computer, which is also provided in the system main body 1. Therefore, by connecting the connector 55 of the board 52 on the adapter 50 side and the connector 5c on the system main body 1, the control unit 2 on the system main body 1 side becomes the communication unit 54 on the adapter 50 side (communication unit on the accommodating unit side). It functions as a communication means 2a capable of command-response wired communication with (one example). That is, in the communication between the communication means 2a and the plurality of communication units 54, first, the communication means 2a provides each communication unit 54 with communication ID information that specifies the communication unit 54 that requests the reply of the response signal. The added command signal is transmitted all at once. Then, among the communication units 54 that have received it, the communication unit 54 corresponding to the communication ID information added to the received command signal returns the response signal corresponding to the command signal to the communication means 2a to communicate. The means 2a can obtain a desired response signal from the designated communication unit 54.

Further, the communication unit 54 on the adapter 50 side reads, for example, the resistance value of the resistance element (not shown) provided in the connector 5c, and identifies the accommodation unit 5 to which the adapter 50 is mounted. For example, when there are four accommodating units 5, it functions as an ID information acquisition unit 54a that acquires accommodating unit ID information such as 1 to 4) as communication ID information used for communication with the communication means 2a.
Further, when the ID information acquisition means 54a fails to acquire the accommodation unit ID information from the connector 5c side due to factors such as the adapter 50 not being normally attached to the accommodation unit 5, the accommodation unit ID information It is configured to acquire the failure ID information other than the accommodation unit number (for example, 0) different from the above communication ID information.

Although the details will be described later, the communication unit 54 on the adapter 50 side is configured to enable wireless communication with the control unit 78 of the gas detector 70 housed in the gas detector housing unit 60 of the adapter 50. .. Therefore, the communication means 2a on the system main body 1 side can communicate with the communication unit 54 on the adapter 50 side, and is accommodated via the communication unit 54 with the adapter 50 interposed in the accommodating unit 5. Communication is also possible with the control unit 78 on the gas detector 70 side.

As shown in FIG. 14 and the like, the control unit 2 on the system main body 1 side functions as an inspection processing means 2d for executing a predetermined inspection process, although details will be described later, by executing a predetermined program.
Further, in addition to the inspection processing means 2d, the control unit 2 includes a gas detector information acquisition means 2b and a storage unit 5 capable of acquiring gas detector information regarding the gas detector 70 housed in the storage unit 5. It also functions as an adapter information acquisition means 2c capable of acquiring adapter information regarding the mounted adapter 50, and will be described in more detail later as a decompression stage number adjusting means 2e, a mounting abnormality determining means 2f, and an empty state determining means 2g. Also works.

The gas detector information acquisition means 2b communicates with the control unit 78 on the gas detector 70 side accommodated by interposing the adapter 50 in the accommodation unit 5, and the gas detector from the control unit 78. The gas detector information including the gas detector side detection component information such as a model capable of identifying the detection component of the 70 is acquired in association with the storage unit ID information that identifies the storage unit 5 in which the gas detector 70 is housed.
On the other hand, the adapter information acquisition means 2c communicates with the communication unit 54 on the adapter 50 side mounted on the accommodation unit 5, so that the communication unit 54 can accommodate a specific gas detector in the adapter 50. Adapter information including adapter-side detection component information such as a model capable of identifying the detection component of 70 is acquired in association with the storage unit ID information that identifies the storage unit 5 to which the adapter 50 is mounted.
Further, the adapter information acquisition means 2c compares the adapter-side detection component information included in the acquired adapter information with the raw material gas component information regarding the raw material gas components stored in the gas containers C1 and C2 registered in advance. If the detection component identified by the adapter side detection component information matches the component of the raw material gas identified by the raw material gas component information, the adapter 50 is referred to the gas detector 70 housed in the adapter 50. Assuming that the inspection gas containing the detection component specified on the side can be supplied, the adapter side detection component information is acquired as the inspection gas supplyable information regarding the inspection gas that can be supplied to the gas detector 70.

Further, the control unit 2 can store the various acquired information in a storage unit 4 including a memory or the like, and can timely retrieve necessary information from the storage unit 4.
The acquisition timing of the adapter information can be the same as the acquisition timing of the gas detector information at the time of accommodating the gas detector 70 in the accommodating portion 5, but the information processing at the time of accommodating the gas detector 70 It is said that the adapter 50 is attached to the accommodating portion 5 for the purpose of reducing the amount.

As shown in FIGS. 7 to 13, the system main body 1 is provided with open portions O1 to O4 for opening to the outside to take in atmospheric OA or exhaust exhaust EA to the outside, and is not shown. Although omitted, the opening portions O1 to O4 are provided on the back side of the system main body 1. Further, inside the system main body 1, various routes for connecting the air supply joint 5a and the exhaust joint 5b provided in the accommodating portion 5 and the opening portions O1 to O4 and the gas container connecting portions C1a and C2a are provided. These paths include pressure gauges Mp1 to Mp5, flow meters Mf1 to Mf3, valves V1 to V14, pumps P1 and P2, pressure regulators R1, R21 and R22 (an example of a decompressor), and filters F1 to F3. Etc. are arranged. The pressure value measured by the pressure gauges Mp1 to Mp5 and the flow rate value measured by the flowmeters Mf1 to Mf3 are input to the control unit 2, and the control unit 2 is based on the input signals and the like. Operation control of valves V1 to V14, pumps P1 and P2, and pressure regulators R1, R21 and R22 is executed.
In FIGS. 7 to 13, in the valves V1 to V14, the closed port is indicated by a black triangle, and the open port is indicated by a white triangle.

For example, as shown in FIG. 8, the gas passage 6b through which the raw material gas G0 taken in from the gas containers C1 and C2 flows in the dilution treatment described later is from the gas containers C1 and C2 to the pressure gauges Mp4 and Mp5, respectively. It is provided as a path to the confluence B1 via the respective pressure regulators R1, R21, R22, the respective two-way valves V9, V10, the three-way valves V8, V11, the flow rate adjusting valve V7, and the flow meter Mf2. There is.
As shown in FIG. 11, for example, the inspection gas path 6c through which the inspection gases G0 and G1 pass passes from the merging portion B1 via the three-way valve V4, the three-way valve V3, the branch portion B2, the three-way valve V1, and the like. Therefore, it is provided as a path to the air supply joint 5a.
Then, a path through which the inspection gases G0 and G1 pass, such as the gas path 6b and the inspection gas path 6c, is called a gas path.

Further, as shown in FIG. 11, for example, as shown in FIG. 11, the air supply path 6a through which the air OA for diluting the raw material gas G0 in the dilution treatment described later passes through the filter F3, the pump P1, the three-way valve V14, and the open portion O3. It is provided as a path to the confluence portion B1 via a three-way valve V13, a flow rate adjusting valve V12, a flow meter Mf3, and the like.
Further, as shown in FIG. 9, for example, as shown in FIG. 9, the air supply joint 5a can be opened to the atmosphere via a three-way valve V1, a three-way valve V3, a flow meter Mf1, a filter F2, and the like from the air supply joint 5a. Therefore, it is provided as a route to the open portion O2.

The gas path 6b and the air supply path 6a are prepared by diluting the raw material gas G0 taken out from the gas containers C1 and C2 and decompressed by the pressure regulators R1, R21 and R22 using the atmospheric OA, and the inspection process described later It functions as a diluting treatment means 6 capable of performing a dilution treatment for producing a dilution gas G1 used as an inspection gas in the above.

The pressure regulators R1, R21, and R22 provided in the gas container connecting portions C1a and C2a are decompression means for depressurizing the raw material gas G0 from the gas containers C1 and C2 connected to the gas container connecting portions C1a and C2a. Functions as.
Further, the decompression means on the gas container connection portion C1a side has a single pressure regulator R1 and is configured as a fixed number of decompression stages in which the number of decompression stages, which is the number of pressure regulators through which the raw material gas G0 passes, is fixed to one stage. Has been done.

On the other hand, the decompression means on the gas container connection portion C2a side has two pressure regulators R21 and R22, and the number of decompression stages, which is the number of pressure regulators through which the raw material gas G0 passes, can be changed between one and two stages. It is configured with a variable number of decompression stages.
Specifically, an upper pressure regulator R21 (an example of an upper decompressor) connected to the gas container connection portion C2a and a lower pressure regulator R22 (an example of a lower decompressor) connected to the secondary side of the upper pressure regulator R21. ) And are arranged in series. Further, a bypass path BL connecting the secondary side of the upper pressure regulator R21 and the secondary side of the lower pressure regulator R22 is provided, and the bypass path BL can be opened and closed at the starting point of the bypass path BL. A three-way valve V11 is provided as a bypass valve. Further, in order to prevent the raw material gas G0 from flowing back in the regulator R22 when the raw material gas G0 flows through the bypass path BL, a check valve CV is provided on the outlet side of the regulator R22. Further, the check valve CV may be built in the regulator R22.

With this configuration, as shown in FIG. 13, if the three-way valve V11 is operated to stop the flow of the raw material gas G0 to the bypass path BL, the raw material gas G0 flowing out from the gas container C2 is released into the upper pressure regulator R21 and the lower stage. It passes through the pressure regulator R22 in this order, and is set to the two stages on the side with the larger number of decompression stages. On the other hand, as shown in FIG. 11, by operating the three-way valve V11 to allow the raw material gas G0 to flow through the bypass path BL, the raw material gas G0 flowing out of the gas container C2 passes only through the upper pressure regulator R21. It will be set to one stage on the side where the number of decompression stages is small.
Then, as will be described in detail later, when the inspection processing means 2d using the raw material gas G0 stored in the gas container C2 as the inspection gas is executed, the decompression stage number adjusting means 2e in which the control unit 2 functions is executed. The three-way valve V11 is operated according to the execution state of the inspection process, and is configured to adjust the number of decompression stages of the decompression means having a variable number of decompression stages composed of the pressure regulators R21, R22 and the like. ..
In the present embodiment, the decompression means on the C1a side is configured to have a fixed number of decompression stages, and the decompression means on the C2a side is configured to have a variable number of decompression stages. The decompression means on the C2a side may be configured to have a fixed number of decompression stages. Further, both the pressure reducing means on the C1a side and the pressure reducing means on the C1b side may be configured to have a variable number of pressure reducing stages.

〔adapter〕
Next, the configuration of the adapter 50 will be described with reference to FIGS. 1, 2, 3, and 14.
As shown in FIG. 1, the adapter 50 is detachably attached to the accommodating portion 5 provided on the front surface of the system main body 1 so that the gas detector 70 can be accommodated in the accommodating portion 5. It is configured. That is, the outer shape of the adapter 50 has a common rectangular cross section so as to be inserted and fitted inside the accommodating portion 5 from the front side, and the adapter 50 is placed above and below the front side of the adapter 50 with respect to the system main body 1. A mounting claw 64 for fixing the screw is formed so as to project in the vertical direction.
Then, the adapter 50 is inserted into the accommodating portion 5 from the front side in the depth direction, and the mounting claw 64 of the adapter 50 is fixed to the accommodating portion 5 with a screw. It is installed.

The adapter 50 may be attached to the system body 1 prior to the inspection of the gas detector 70, but in order to prevent erroneous selection and attachment, the supplier does not attach the adapter 50 to the system body 1. It is desirable to do it on the (maker, etc.) side. That is, the supplier grasps the specifications of the gas detector 70 used by the user in advance at the time of receiving an order for the inspection processing system 100, and based on the specifications, the inspection processing in which an appropriate adapter 50 is attached to the system main body 1 in advance. The system 100 is delivered to the user. In addition, the supplier can change the adapter 50 based on the change of the adapter 50 used by the user at the time of maintenance, overhaul, or the like.

The adapter 50 is provided with a gas detector accommodating portion 60 which is a concave portion having a rectangular cross section for inserting and accommodating the gas detector 70 through an opening on the front side. The gas detector accommodating portion 60 is configured such that its shape and arrangement of various parts provided therein conform to a predetermined model of the gas detector 70, and the gas detector 70 of a plurality of models. A plurality of types of adapters 50 suitable for each are prepared. As a result, a plurality of types of gas detectors 70 can be accommodated in a form in which the adapter 50 is interposed in the common accommodating portion 5, and the accommodating portion 5 can accommodate the gas detector 70 owned by the user. The adapter 50 is selected and mounted according to the model of.

As shown in FIG. 3, the adapter 50 is composed of an upper and lower two-divided structure including an upper casing 50a and a lower casing 50b, and the gas detector accommodating portion 60 described above is a recess on the lower surface side of the upper casing 50a. It is formed in a form in which it is combined with a recess on the upper surface side of the lower casing 50b.
In addition to the gas detector accommodating portion 60, an exhaust guide such as an exhaust tube 57 and a filter 58 is provided on the lower surface side of the upper casing 50a of the adapter 50 and the upper surface side of the lower casing 50b, although details will be described later. A road 56, an air supply guide path 61 provided with an air supply tube 62, a base accommodating portion 51 accommodating a base 52 provided with a communication element 53, a communication unit 54, and the like, a communication passage 63, and the like are formed. Various recesses are provided for this purpose.

The exhaust guide path 56 is provided adjacent to the left side of the gas detector accommodating portion 60 as a passage for guiding the exhaust gas from the gas detector 70 accommodated in the accommodating portion 5 to the exhaust joint 5b. The exit direction is along the mounting direction (that is, the depth direction) of the adapter 50 to the accommodating portion 5. The exhaust guide path 56 has an opening 59 that opens from the side to the gas detector accommodating portion 60, and the opening 59 is the gas detector 70 accommodated in the gas detector accommodating portion 60. It is arranged to face the exhaust unit 77 of the above at a predetermined interval. Further, the gas suction flow rate of the exhaust joint 5b (that is, the suction flow rate of the pump P2 (see FIGS. 7 to 13) on the system main body 1 side) is the exhaust flow rate of the gas detector 70 (that is, the suction pump on the gas detector 70 side). It is set to be larger than the suction flow rate of 75). As a result, the exhaust gas discharged from the exhaust gas 77 of the gas detector 70 can be reliably sucked from the opening 59 into the exhaust guide path 56. Further, in addition to the exhaust gas from the gas detector 70, the ambient air of the gas detector accommodating portion 60 is taken into the opening 59. That is, the exhaust gas from the gas detector 70 can be diluted with ambient air and sucked into the exhaust guide path 56 from the opening 59, and the diluted exhaust gas can be taken out from the system main body 1 side to the outside in a safe state. Can be discharged.

In the exhaust guide path 56, a filter 58 is provided in a space facing the opening 59, and an exhaust tube 57 is internally fitted in the space behind the filter 58. The rear end portion of the exhaust tube 57 is fitted and connected to the exhaust joint 5b provided on the inner inner surface side of the accommodating portion 5, and the connection direction is the mounting direction of the adapter 50 to the accommodating portion 5 ( That is, it is set in the direction along the depth direction). This makes it possible to easily connect the exhaust tube 57 to the exhaust joint 5b when the adapter 50 is attached to the accommodating portion 5. In the adapter 50, the filter 58 may be omitted as appropriate and provided on the system main body 1 side.

The air supply guide path 61 is provided on the back side of the gas detector accommodating portion 60 as a passage for guiding the inspection gases G0 and G1 supplied to the air supply joint 5a to the gas introduction portion 72 of the gas detector 70. The extending direction is along the mounting direction (that is, the depth direction) of the adapter 50 to the accommodating portion 5. An air supply tube 62 is internally fitted in the air supply guide path 61. The front end portion of the air supply tube 62 is fitted and connected to the suction nozzle 73 of the gas detector 70 housed in the gas detector housing part 60, and the connection direction is to the gas detector housing part 60. It is set in a direction along the insertion direction (that is, the depth direction) of the gas detector 70. As a result, when the gas detector 70 is inserted into the gas detector accommodating portion 60, the suction nozzle 73 can be easily connected to the air supply tube 62.

Further, the back end portion of the air supply tube 62 is fitted and connected to the air supply joint 5a provided on the inner back surface side of the accommodating portion 5, and the connection direction thereof is the adapter 50 to the accommodating portion 5. It is set in the direction along the mounting direction (that is, the depth direction) of. As a result, when the adapter 50 is attached to the accommodating portion 5, the air supply tube 62 can be easily connected to the air supply joint 5a.

The board accommodating portion 51 is provided adjacent to the left side of the exhaust guide path 56, and its extending direction is along the mounting direction (that is, the depth direction) of the adapter 50 to the accommodating portion 5. The plate-shaped base 52 is housed in the base accommodating portion 51 in a posture in which the plate surface is perpendicular to the left-right direction. Then, the connector 55 provided at the back end of the base 52 is fitted and connected to the connector 5c provided on the inner back side of the housing 5, and the connection direction is the adapter 50 to the housing 5. It is set in the direction along the mounting direction (that is, the depth direction) of. As a result, when the adapter 50 is attached to the accommodating portion 5, the connector 55 on the adapter 50 side can be easily connected to the connector 5c on the system main body 1 side.

Further, a communication unit 54 composed of a CPU or the like is arranged on the board 52, and the gas detector 70 housed in the gas detector housing unit 60 is placed on the surface of the gas detector housing unit 60 side. A communication element 53 for performing infrared communication with the communication element 79 is arranged.
The adapter 50 is formed with a communication passage 63 extending in the left-right direction for passing the communication infrared rays transmitted and received between the communication elements 79 and 53. As a result, when the gas detector 70 is housed in the gas detector housing part 60 of the adapter 50, infrared communication between these communication elements 79 and 53 becomes possible when the gas detector 70 is completely housed. Therefore, by detecting the state in which such infrared communication is possible, it is possible to determine the completion of accommodation of the gas detector 70.
In the adapter 50, for the base 52 on which the communication unit 54 is provided, a plurality of types of communication unit 54 patterns are prepared so that they can be adopted in various adapters, and which communication unit is mounted at the time of manufacturing is determined. By making a decision, the base 52 is standardized.

[Mounting abnormality judgment processing]
Next, the mounting abnormality determination process executed by the mounting abnormality determining means 2f in which the control unit 2 functions will be described with reference to FIG.
The mounting abnormality determining means 2f automatically executes a predetermined mounting abnormality determining process based on the communication state of the communication means 2a when the inspection processing system 100 is started.
In this mounting abnormality determination process, whether or not the adapter 50 is normally mounted on the accommodating portion 5 and the communication unit 54 as the accommodating unit side communication unit provided on the adapter 50 is normally attached to the connector 5c of the accommodating unit 5. This is a process for accurately determining whether or not.

Specifically, in this mounting abnormality determination process, first, the communication means 2a acquires the communication units 54 of all the adapters 50 as the accommodating unit ID when the communication unit 54 fails to attach to the connector 5c. When a failure occurs, a command signal with ID information added as communication ID information is transmitted all at once.
Then, among the communication units 54 of all the adapters 50 that have received the command signal, only the communication unit 54 that has acquired the failure ID information as the communication ID information due to the failure of attachment to the connector 5c is the command. The response signal is returned to the communication means 2a in response to the reception of the signal.
Therefore, when the communication means 2a receives the response signal in association with the simultaneous transmission of the command signal to which the ID information at the time of failure is added as the communication ID information, the mounting abnormality determining means 2f is normally mounted on the accommodating unit 5. It can be determined that there is a communication unit 54 having an abnormal mounting that is not performed. Then, when such a mounting abnormality exists, the fact is displayed on the display 3 and the operator is urged to take measures to correct the mounting abnormality.

[Empty state judgment processing]
Next, the empty state determination process executed by the empty state determination means 2g in which the control unit 2 functions will be described with reference to FIG.
Similar to the mounting abnormality determining means 2f, the empty state determining means 2g automatically executes a predetermined empty state determining process based on the communication state of the communication means 2a when the inspection processing system 100 is started.
This empty state determination process is a process for accurately determining whether or not the adapter 50 is not attached to each of the plurality of accommodating units 5.

Specifically, in this empty state determination process, first, a command is added by the communication means 2a to the communication unit 54 of each adapter 50 with the accommodation unit ID information associated with the accommodation unit 5 added as communication ID information. Simultaneously transmit signals.
Then, when the communication unit 54 having the accommodating unit ID information added to the command information exists as the communication ID information, the communication means 2a receives the response signal from the communication unit 54, but such a communication unit 54 If it does not exist, the communication means 2a does not receive the response signal.
Therefore, when the empty state determining means 2g receives the response signal in association with the simultaneous transmission of the command signal to which the accommodating unit ID information is added, the accommodating unit 5 associated with the accommodating unit ID is provided with the communication unit 54. It is determined that the adapter 50 to be carried is attached.
On the contrary, when the response signal is not received due to the simultaneous transmission of the command signal to which the accommodating unit ID information is added, the accommodating unit 5 associated with the accommodating unit ID has an adapter 50 having a communication unit 54. It can be determined that it is in a so-called empty state in which it is not mounted, or that a mounting abnormality has occurred in the communication unit 54 thereof. However, since this empty state determination process is executed on the premise that the mounting abnormality has been corrected by executing the above-mentioned mounting or higher judgment process, if the response signal is not received, it is determined that the empty state is empty. It will be displayed on the display 3 whether or not each of the accommodating portions 5 is empty.

[Inspection processing method]
Next, the inspection processing method executed by the inspection processing system 100 described above will be described with reference to FIGS. 4 to 13.
First, the operator inserts the gas detector 70 to be inspected into the gas detector accommodating portion 60 of the adapter 50 mounted on the accommodating portion 5 in a state of being operated. If the gas detector 70 to be inspected is for a plurality of components for which the main detection component and the sub-detection component are selectively detected by switching the detection mode, the gas detector 70 is concerned. The 70 is inserted into the adapter 50 mounted on the accommodating portion 5 in a state of being operated in the main detection mode in which the main detection component is the detection target.

Then, as described above, the suction nozzle 73 on the gas detector 70 side is connected to the air supply tube 62 on the adapter 50 side, and the communication element 79 on the gas detector 70 side and the communication element 53 on the adapter 50 side. Infrared communication between the two is possible. Then, the control unit 2 on the system main body 1 side determines the state in which the infrared communication is possible as the completion of the accommodation of the gas detector 70.

Then, the control unit 2 displays an initial screen (FIG.) on the display 3 in a state where the gas containers C1 and C2 are connected to the gas container connecting parts C1a and C2a, respectively, and the gas detector 70 is housed in the housing part 5. 6 (a)) is displayed, and when the "bump test" button on the initial screen is operated by the user, the execution of the inspection processing method is started. In order to omit this button operation, the inspection processing method may be automatically started when the gas detector 70 detects that the gas detector 70 is housed in the housing unit 5.
Then, in the inspection processing method, as shown in FIG. 4, the conformity confirmation processing (# S1) and the predetermined grouping processing (# S2) are sequentially executed to determine the gas detector 70 to be inspected (# S3). Then, the inspection process (# S4) is executed for the determined gas detector 70. Further, after the inspection process (# S4) is executed, the cleaning process (# S6) is executed. When a plurality of gas detectors 70 are accommodated in the four accommodating portions 5, a plurality of the gas detectors 70 are targeted for inspection, and the plurality of gas detectors 70 targeted for inspection are checked. , The inspection process (# S4) is sequentially executed in series. In the present embodiment, the various processes constituting the inspection process method are sequentially executed in series, but the process order thereof may be changed, at least a part of the plurality of processes may be duplicated, or another process may be performed. The execution procedure may be changed within an appropriate range, such as interposing processing in between.
Hereinafter, details of each process constituting these inspection process methods will be described in order.

[Conformity confirmation process]
In the conformity confirmation process (# S1) shown in FIG. 4, the adapter information acquired by the adapter information acquisition means 2c and the gas detector information acquired by the gas detector information acquisition means 2b before the inspection process (# S4) is executed. Check compatibility with.
That is, in this conformity confirmation process (# S1), the inspection gas supply possible information generated from the adapter information of each accommodating unit 5 stored in advance in the storage unit 4 when the adapter 50 is attached is referred to, and the accommodating unit 5 receives the information. A gas detector suitable for the adapter 50 in a form of comparing whether or not the gas detector information of the housed gas detector 70 conforms to the inspection gas supply availability information associated with the same housing part 5. Check if 70 is set.

Specifically, as described above, the gas detector information includes gas detector side detection component information such as a model capable of identifying the detection component of the gas detector 70. On the other hand, the adapter information includes adapter-side detection component information such as a model capable of identifying the detection component of the specific gas detector 70 that can be accommodated in the adapter 50. Then, the inspection gas supplyable information is generated and stored in advance from the adapter information or the like as information on the inspection gas that can be supplied to the gas detector 70 housed in the adapter 50.

Then, in the conformity confirmation process (# S1), the detection target matching the inspection gas that can be supplied by the inspection process system 100, in other words, the raw material gas G0 stored in the attached gas containers C1 and C2 is detected. In the form of confirming whether or not the gas detector 70 is housed in the adapter 50, the compatibility between the gas detector side detection component information and the inspection gas supply available information is confirmed.

Further, when the gas detector 70 for a plurality of components whose detection target is a plurality of detection components is to be inspected, the gas detector 70 is operated in the main detection mode in which the main detection component is the detection target. Is housed in the adapter 50. When the gas detector 70 for the plurality of components is housed in the adapter 50, the inspection gas corresponding to at least the main detection component of the gas detector 70 can be supplied to the gas detector 70. The conformity confirmation process (# S1) for confirming whether or not the gas detector 70 compatible with the adapter 50 is set is executed in the form of determining whether or not the adapter 50 is present. Although the details will be described later, when the adapter 50 is for a plurality of components, the gas detector 70 uses the inspection gas corresponding to the sub-detection component of the gas detector 70 in the conformity confirmation process (# S1). It is also determined whether or not it can be supplied to.

In this conformity confirmation process (# S1), whether or not the gas detector 70 to be inspected is for a plurality of components, and whether or not the adapter 50 in which the gas detector 70 is set is for a plurality of components. The execution mode of the conformity confirmation process (# S1) differs depending on the case. Hereinafter, an example of confirmation criteria for each case will be described.

(Case 1: When the gas detector 70 for multiple components is set in the adapter 50 for multiple components)
In this case, for both the main detection component and the sub-detection component of the gas detector 70, it is determined whether or not the inspection gas corresponding to the detection component can be supplied to the gas detector 70. Then, the above conformity confirmation process (# S1) is executed.
Then, when it is possible to supply the inspection gas corresponding to both detection components, it is determined that the gas detector 70 suitable for the adapter 50 is set, while the inspection gas corresponding to at least one detection component is determined. If the gas cannot be supplied, it is determined that the incompatible gas detector 70 is set for the adapter 50.
Even when the inspection gas corresponding to both the main detection component and the sub detection component can be supplied, the model and the like are different between the gas detector 70 and the adapter 50, for example, the main detection component. When the sub-detection component is opposite, it can be determined that the incompatible gas detector 70 is set for the adapter 50.
In this case, both the main detection component and the sub-detection component of the gas detector 70 are determined. For example, the inspection gas corresponding to the main detection component of the gas detector 70 is applied to the gas detector 70. If it can be supplied, even if the sub-detection component cannot be supplied, it is determined that the gas detector 70 suitable for the adapter 50 is set, and the inspection process using the inspection gas corresponding to the main detection component is used. It may be configured to run only.

(Case 2: When the gas detector 70 for multiple components is set in the adapter 50 for single component)
In this case, the conformity confirmation process (# S1) is in the form of determining whether or not the inspection gas corresponding to the main detection component of the gas detector 70 can be supplied to the gas detector 70. Is executed.
Then, when the inspection gas corresponding to the main detection component can be supplied, it is determined that the gas detector 70 suitable for the adapter 50 is set even if the sub-detection component cannot be supplied.

(Case 3: When the gas detector 70 for a single component is set in the adapter 50 for multiple components)
In this case, even if the gas detector side detection component information and the inspection gas supply available information partially match, it is determined that they do not match.

Then, in the above conformity confirmation process (# S1), when it is determined that the non-conforming gas detector 70 is set for the adapter 50, that is, the gas detector 70 housed in the adapter 50 conforms to the raw material gas G0. It is determined that the detection component to be detected is not the detection target, or when the gas detector 70 is for a plurality of components, the inspection gas corresponding to the main detection component cannot be supplied to the gas detector 70. In that case, the execution of the inspection process (# S4) is prohibited and the user is notified to that effect. On the contrary, when it is determined that the gas detector 70 suitable for the adapter 50 is set, the process proceeds to the next grouping process (# S2).
By executing such a conformity confirmation process (# S1), it is possible to prevent the subsequent inspection process (# S4) from being executed in a state where, for example, a gas detector 70 that does not conform to the adapter 50 is set. Will be done. Therefore, problems such as leakage of inspection gases G0 and G1 due to incompatibility of the combination of the gas detector 70 and the adapter 50 and erroneous inspection results can be avoided.

[Grouping process]
In the grouping process (# S2) shown in FIG. 4, a plurality of gas detectors 70 housed in the four accommodating portions 5 are targeted for inspection, and the plurality of gas detectors 70 housed in the inspection target are each subject to the inspection. Grouping is performed according to the inspection gas supplied to the gas detector 70. Further, in this grouping process (# S2), various information about the inspection gas can be used as an index for grouping, but in the present embodiment, the composition and concentration of the inspection gas supplied to the gas detector 70 are used. It is used as an index for grouping.

Such a grouping process (# S2) is executed, and after the subsequent inspection process (# S4) is executed, it is confirmed whether or not the next gas detector 70 to be inspected belonging to the same group exists (# S5). ). Then, when the next gas detector 70 to be inspected belonging to the same group exists, the inspection process (# S4) for the gas detector 70 is preferentially executed, while if it does not exist, it will be described later. After executing the cleaning process (# S6), it is confirmed whether or not there is a gas detector 70 to be inspected belonging to another group (# S7), and the gas detector 70 belonging to the other group is checked. Move to the inspection process (# S4).
Then, by executing the grouping process (# S2) in this way and sequentially executing the inspection process (# S4) for each group, it is easy to change the composition and concentration of the inspection gas when the inspection target is switched. Has been transformed.

[Inspection process]
The detailed processing flow of the inspection processing (# S4) shown in FIG. 4 is shown in FIG. As shown in FIG. 5, in this inspection process, the operator confirmation process (# S10), initial confirmation process (# S12), blockage alarm confirmation process (# S13), and suction are performed on the gas detector 70 to be inspected. The flow rate confirmation process (# S14) and the gas alarm confirmation process (# S15) are executed in order. Further, before executing the gas alarm confirmation process, specifically, in parallel with the execution of the initial confirmation process (# S12) to the suction flow rate confirmation process (# S14), the concentration stabilization process (# S11) is executed. If it is determined that there is no abnormality in all of the blockage alarm confirmation process (# S13), suction flow rate confirmation process (# S14), and gas alarm confirmation process (# S15), it means that the overall judgment is normal. Is displayed (# S16), the calibration process (# S17) is executed, the inspection process (# S4 in FIG. 4) is completed, and if it is determined that there is an abnormality in any of them, it is judged as a comprehensive judgment. After displaying that it is abnormal (# S18), the inspection process (# S4 in FIG. 4) is terminated. Whether or not the calibration process (# S17) is appropriately executed by the operator can be set.
Hereinafter, details of various processes constituting these inspection processes will be described.

(Worker confirmation process)
In the worker confirmation process (# S10), the worker confirmation screen (see FIG. 6B) is displayed on the display 3. On this worker confirmation screen, inspection items that the worker should visually check are displayed, and the worker visually inspects the gas detector 70 according to this display, and there is no problem. To operate the "Confirmation Complete" button displayed on the same screen. When the "confirmation completed" button is operated, the worker confirmation process (# S10) is terminated, and the worker confirmation screen (see FIG. 6 (b)) of the display 3 is displayed on the bump test screen (FIG. 6 (c)). (Refer to), and the execution of the next initial confirmation process (# S12) is started.

(Initial confirmation process)
FIG. 7 shows the operating state and gas flow state of various auxiliary machines in the initial confirmation process (# S12).
In this initial confirmation process (# S12), auto-zero setting and battery level confirmation are performed.
In the auto zero setting, the switching state of the three-way valve V1 is set so that the air supply joint 5a to which the gas introduction portion 72 of the gas detector 70 is connected is opened to the opening portion O1. Then, the gas detector 70 is in a state of sucking the atmospheric OA from the gas introduction section 72 through the open section O1 and supplying the sucked atmospheric OA to the sensor section 76. In this state, the control unit 78 on the gas detector 70 side sets the output of the sensor unit 76 to zero, and when the setting is completed, the control unit 78 on the gas detector 70 side receives that fact. Further, on the other hand, in the battery remaining amount confirmation, the battery remaining amount on the gas detector 70 side is received from the control unit 78 of the gas detector 70.
Then, when the auto-zero setting and the battery remaining amount confirmation are completed, the fact that the above zero setting has been made and the battery remaining amount are displayed on the bump test screen (see FIG. 6C) displayed on the display 3, and then. This initial confirmation process (# S12) is terminated.

(Blockage alarm confirmation process)
FIG. 8 shows the operating state and the gas flow state of various auxiliary machines in the blockage alarm confirmation process (# S13). In this blockage alarm confirmation process (# S13), the gas detector 70 confirms whether or not there is an abnormality in the blockage alarm function that outputs a predetermined blockage alarm when the gas introduction unit 72 is blocked.
That is, in the blockage alarm confirmation process (# S13), the outflow of gas from the air supply joint 5a is blocked while the air supply joint 5a is connected to the gas introduction portion 72 of the gas detector 70. The switching state of the three-way valves V1, V3, V4, V5 leading to the air supply joint 5a is set. Then, the state of the gas introduction unit 72 of the gas detector 70 becomes a pseudo blockage state, and the presence or absence of the output of the blockage alarm by the blockage alarm function of the gas detector 70 at that time is determined by the control unit 78 on the gas detector 70 side. Confirm by communication of.

Then, when a blockage alarm is output as the gas outflow from the air supply joint 5a is shut off, it is determined that the blockage alarm function of the gas detector 70 is operating normally. On the other hand, if the blockage alarm is not output due to the interruption of the gas outflow from the air supply joint 5a, it is determined that the blockage alarm function of the gas detector 70 is not operating normally. Further, with respect to the gas detector 70 having an abnormality in the blockage alarm function in this way, the blockage abnormality in which the suction flow rate becomes substantially zero before having the suction flow rate abnormality in which the gas suction flow rate deviates from the appropriate flow rate range is detected. It can be judged that there is a possibility of having it.
Then, after displaying the presence or absence of an abnormality in the blockage alarm function of the gas detector 70 on the bump test screen (see FIG. 6C) displayed on the display 3, the blockage alarm confirmation process (# S13) is terminated. ..

Further, when the blockage alarm confirmation process (# S13) is completed, the next suction flow rate confirmation process (# S14) is executed only for the gas detector 70 having no abnormality in the blockage alarm function. On the other hand, when it is determined that the blockage alarm function has an abnormality, it is abnormal as a comprehensive judgment in order to avoid unnecessary execution of the subsequent processing including the gas alarm confirmation processing (# S15) for the gas detector 70. After displaying the fact (# S18), the inspection process (# S4 in FIG. 4) is completed to rationalize the inspection process.

(Suction flow rate confirmation process)
FIG. 9 shows the operating state and the gas flow state of various auxiliary machines in the suction flow rate confirmation process (# S14). In this suction flow rate confirmation process (# S14), it is confirmed whether or not there is a suction flow rate abnormality in which the gas suction flow rate from the gas introduction unit 72 of the gas detector 70 deviates from the appropriate flow rate range.
That is, in the suction flow rate confirmation process (# S14), the switching state of the three-way valve V1 and the three-way valve V3 is set and opened with the air supply joint 5a connected to the gas introduction portion 72 of the gas detector 70. The air supply joint 5a is opened to the atmosphere via an air opening path leading to the portion O2. Then, the gas detector 70 sucks the atmospheric OA from the gas introduction unit 72 through the atmospheric opening path, so that the gas flow rate measured by the flow meter Mf1 provided in the atmospheric opening path is measured by the gas detector. It is acquired as the gas suction amount of 70, and the presence or absence of a suction flow abnormality in which an appropriate gas suction flow cannot be secured by the gas detector 70 is grasped.
Then, after displaying the presence or absence of the suction flow rate abnormality of the gas detector 70 on the bump test screen (see FIG. 6C) displayed on the display 3, the suction flow rate confirmation process (# S14) is completed.

Further, when the suction flow rate abnormality confirmation process (# S14) is completed, the next gas alarm confirmation process (# S15) is executed only for the gas detector 70 having no suction flow rate abnormality. On the other hand, when it is determined that there is an abnormality in the suction flow rate, it is determined that the gas detector 70 is abnormal as a comprehensive judgment in order to avoid unnecessary execution of the subsequent processing including the gas alarm confirmation processing (# S15). After displaying (# S18), the inspection process (# S4 in FIG. 4) is completed to rationalize the inspection process.

(Concentration stabilization treatment)
The operating state and gas flow state of various auxiliary machines in the concentration stabilization process (# S11) are shown in FIGS. 8 to 10. In this concentration stabilization process (# S11), the diluted gas G1 as an inspection gas whose flow rate and concentration are stable from the beginning of the subsequent gas alarm confirmation process (# S15) is sent to the gas introduction unit 72 of the gas detector 70. This is a process to be executed when the blockage alarm confirmation process (# S13) or the suction flow rate confirmation process (# S14) before the execution of the alarm confirmation process (# S15) is executed in order to supply and obtain an accurate inspection result. Specifically, it is executed in parallel with the execution of the initial confirmation process (# S12) to the suction flow rate confirmation process (# S14) (see FIGS. 8 and 9), and further after the execution of the suction flow rate confirmation process (# S14). Also, until the flow rate and concentration of the diluting gas G1 stabilize, the alarm confirmation process (# S15) is executed in a state of waiting for the start of execution (see FIG. 10).

That is, in the concentration stabilization treatment (# S11), the dilution gas G1 as the inspection gas generated by the dilution treatment by the dilution treatment means 6 described above is exhausted to the outside to stabilize the concentration of the dilution gas G1.
Specifically, the flow rate adjusting valve V7 and the two-way valve V10 are opened, the switching state of the three-way valve V8 is set, and the switching state of the three-way valve V11 is set by the pressure reducing stage number adjusting means 2e to set the number of pressure reducing stages. By setting to one stage on the lesser side, the raw material gas G0 taken out from the gas container C2 (in this embodiment, the raw material gas G0 stored in the gas container C2 is used, but that of another gas container C1. After stabilizing the pressure with the upper pressure regulator R21, the gas is passed through the flow meter Mf2 via the bypass path BL or the like and supplied to the confluence portion B1. At the same time, by operating the pump P1 to open the flow rate adjusting valve V12 and setting the switching state of the three-way valves V13 and V14, the atmospheric OA taken in from the opening portion O3 is passed through the filter F3 and the flow meter Mf3. And supply it to the merging portion B1.
As a result, in the confluence portion B1, the raw material gas G0 passed through the gas path 6b provided with the flow meter Mf2 is diluted by the atmospheric OA passed through the air supply path 6a provided with the flow meter Mf3. The so-called dilution treatment is executed to generate the dilution gas G1.

Further, the flow rate of the raw material gas G0 supplied to the merging portion B1 is controlled by adjusting the opening degree of the flow rate adjusting valve V7, while the flow rate of the atmospheric OA supplied to the merging portion B1 is controlled by the opening degree of the flow rate adjusting valve V12. It is controlled by adjustment. Then, by these controls, the flow rate and concentration of the diluting gas G1 are adjusted to a desired flow rate and concentration.
Then, in such a dilution process, the set flow rate of the raw material gas G0 set according to the dilution ratio of the raw material gas G0 is set according to the dilution ratio so that the capacity of the gas container C2 can be as small as possible. It is supposed to be smaller than the set flow rate of the atmospheric OA.
Then, in this concentration stabilization process (# S11), by setting the switching state of the three-way valves V4 and V5, the diluted gas G1 generated at the merging portion B1 is released through the three-way valves V4 and V5 to the opening portion O4. Is supplied to the outside and exhausted to the outside from the opening O4. That is, the supply destination of the diluted gas G1 is configured so that the diluted gas G1 can be exhausted by switching from the air supply joint 5a on the gas detector 70 side to the external open portion O4.

Further, in this concentration stabilization treatment (# S11), the diluting gas G1 is obtained by diluting the raw material gas G0 having a relatively small flow rate in the atmosphere. Since it is set, lockup and chattering of the pressure regulator R21 are avoided, and the raw material gas G0 is surely taken out from the gas container C1.

In this concentration stabilization process (# S11), by opening the two-way valves V2 and V6 while operating the pump P2, the ambient air taken in from the opening 59 of the adapter 50 is used as the exhaust EA from the opening O4. It is in a state of being discharged to the outside. That is, the diluting gas G1 exhausted to the outside through the open portion O4 is diluted by the ambient air taken in from the opening 59 of the adapter 50, and the diluted gas G1 can be exhausted to the outside with a high concentration. It has been avoided.

Further, at the start of execution of the above-mentioned dilution treatment, that is, at the start of execution of this concentration stabilization treatment (# S11), the opening degree of the flow rate adjusting valve V7 is temporarily increased to increase the flow rate of the raw material gas G0. The flow rate is set to be larger than the set flow rate according to the dilution ratio of the raw material gas G0. As a result, the concentration of the diluting gas G1 generated at the confluence B1 rises early and reaches an appropriate concentration, and as a result, the alarm confirmation process (# S15) is waiting to be started. The execution time of the concentration stabilization process (# S11) can be made as short as possible.

Further, as shown in FIG. 10, while the concentration stabilization process (# S11) is executed while waiting for the start of execution of the gas alarm confirmation process (# S15), the initial confirmation process (# S12) described above is performed. Similarly, by opening the air supply joint 5a to which the gas introduction portion 72 of the gas detector 70 is connected to the opening portion O1, the gas detector 70 moves from the gas introduction portion 72 to the atmosphere OA via the opening portion O1. To suck.

(Gas alarm confirmation process (dilution process))
FIG. 11 shows the operating state and the gas flow state of various auxiliary machines in the gas alarm confirmation process (# S15) when the dilution process is performed. In this gas alarm confirmation process (# S15), the gas introduction section 72 of the gas detector 70 is used as the inspection gas generated by the dilution process via the branch section B2 which is the gas supply section and the air supply joint 5a. The diluted gas G1 of the above is supplied, and it is confirmed whether or not the gas alarm function of the gas detector 70 is abnormal.
In this gas alarm confirmation process (# S15), the diluted gas G1 diluted in the atmosphere OA that has not been dried by the dilution process is supplied to the gas detector 70, so that the sensor unit of the gas detector 70 The 76 is maintained in a state similar to that of a normal atmospheric OA containing moderate moisture without being excessively dried, and operates under the same conditions as in normal use.

That is, in the gas alarm confirmation process (# S15) shown in FIG. 11, the three-way valve V4 is set by setting the switching state of the three-way valves V1, V4, V5 from the state of the concentration stabilization process (# S11) in FIG. The diluted gas G1 supplied to the gas detector 70 is supplied to the gas introduction unit 72 of the gas detector 70 via the branch portion B2 as the gas supply unit and the air supply joint 5a, and the diluted gas G1 is supplied to the gas detector 70. Let it suck. Then, in the gas detector 70, the diluted gas G1 containing the detection component is introduced from the gas introduction unit 72, and at that time, does the gas alarm function of the gas detector 70 operate normally and output a gas alarm? Whether or not it is confirmed by communication with the control unit 78 on the gas detector 70 side, and whether or not the gas alarm function of the gas detector 70 is abnormal is confirmed.
Then, after displaying the presence or absence of abnormality in the gas alarm function of the gas detector 70 on the bump test screen (see FIG. 6C) displayed on the display 3, the alarm confirmation process (# S15) is terminated.

When the gas detector 70 housed in the adapter 50 is for a plurality of components, first, for the gas detector 70 for a plurality of components set in the adapter 50 in the state of being operated in the main detection mode. Then, the gas alarm confirmation process (# S15) is executed using the diluted gas G1 generated by the raw material gas G0 corresponding to the main detection component to be detected in the main detection mode. Then, after executing the gas alarm confirmation process (# S15), the mode switching operation of the gas detector 70 is performed to switch the detection mode of the gas detector 70 to the sub-detection mode, and then the detection in the sub-detection mode is performed. The gas alarm confirmation process (# S15) is executed using the diluted gas G1 generated by the raw material gas G0 corresponding to the target sub-detection component.

Further, in the gas alarm confirmation process (# S15) shown in FIG. 11, the diluted gas G1 that is larger than the gas suction flow rate of the gas detector 70, that is, the suction flow rate of the suction pump 75 on the gas detector 70 side is the gas detector 70. It is supplied to the branch portion B2 which is a gas supply portion leading to the gas introduction portion 72 of the above. Then, the diluted gas G1 that has not been sucked into the gas introduction portion 72 of the gas detector 70 exists, and the diluted gas G1 is discharged to the outside from the open portion O4 via the three-way valve V5. As a result, the gas detector 70 sucks the diluted gas G1 without shortage, and further maintains the suction flow rate at an appropriate suction flow rate regardless of the supply flow rate of the diluted gas G1 on the system main body 1 side. It will operate under the same conditions as during normal use.

Further, when the gas alarm confirmation process (# S15) is completed, the previous blockage alarm confirmation process (# S13) and the suction flow rate confirmation process (# S14) are performed for the gas detector 70 having no gas alarm abnormality. Since it was normal in the above, the inspection process (# S4 in FIG. 4) is terminated after displaying that it is normal as a comprehensive judgment (# S16). On the other hand, when it is determined that there is a gas alarm abnormality, the inspection process (# S4 in FIG. 4) is terminated after displaying that the abnormality is present as a comprehensive judgment (# S18).

(Calibration process (non-dilution process))
FIG. 13 shows the operating state and gas flow state of various auxiliary machines in the calibration process (# S17).
The gas alarm confirmation process (# S15) shown in FIG. 11 described above is a case where the raw material gas G0 taken out from the gas container C2 is diluted with atmospheric OA to generate a diluted gas G1. However, in the calibration process (# S17), instead of the dilution process, the dilution process means 6 is put into a non-operating state, and the raw material gas G0 taken out from the gas container C2 is used as an inspection gas without being diluted as it is. Execute.
In this calibration process (# S17), the raw material gas G0 taken out from the gas container C2 is supplied as an inspection gas to the gas introduction unit 72 of the gas detector 70 to calibrate the sensitivity of the gas detector 70. ..
In this calibration process (# S17), the raw material gas G0 having a stable concentration is supplied to the gas detector 70 as it is without being diluted, and the output signal of the sensor unit 76 of the gas detector 70 at that time is used as the raw material. The sensitivity of the sensor unit 76 is accurately calibrated so as to match the concentration of gas G0.

The details will be described below.
FIG. 13 shows the operating state and gas flow state of various auxiliary machines in the calibration process (# S17) when the non-dilution process is performed. In this calibration process (# S17), the raw material gas G0 taken out from the gas container C1 is supplied to the gas introduction section 72 of the gas detector 70 via the branch section B2 which is the gas supply section and the air supply joint 5a. Then, the sensitivity of the gas detector 70 is calibrated.

That is, in the calibration process (# S17) shown in FIG. 13, the operation of the pump P1 is stopped and the three-way valve V14 is closed to stop the intake of atmospheric OA from the opening portion O3. At the same time, the two-way valve V10 is opened and the switching state of the three-way valve V8 is set, and further, the switching state of the three-way valve V11 is set by the pressure reducing stage number adjusting means 2e to set the number of pressure reducing stages to the two stages on the larger side. As a result, the raw material gas G0 taken out from the gas container C2 is stabilized by the upper pressure regulator R21 and the lower pressure regulator R22, and then the atmosphere on the flow meter Mf3 side through which the atmosphere OA passes in the above-mentioned dilution treatment. It is passed through the supply path 6a and supplied to the confluence portion B1. Then, the raw material gas G0 is supplied to the branch portion B2 as the gas supply unit for supplying the inspection gas to the gas introduction unit 72 of the gas detector 70 and the air supply joint 5a.
As a result, when the raw material gas G0 is used as it is, even if the required flow rate of the raw material gas G0 becomes a relatively large flow rate, the atmospheric OA having a relatively large flow rate flows through the raw material gas G0. It can be passed through the air supply path 6a corresponding to a relatively large flow rate, and the flow rate of the raw material gas G0 can be measured by, for example, a flow meter Mf3 corresponding to a relatively large flow rate. On the other hand, the raw material gas supply path on the flow meter Mf2 side through which the raw material gas G0 having a relatively small flow rate passes is configured to be relatively simple and compact corresponding to only a small flow rate. For example, the flow meter Mf2 may also be used. Those corresponding to a relatively small flow rate are used.

Further, in this calibration process (# S17), a relatively large flow rate of the raw material gas G0 is supplied to the gas detector 70, but the decompression stage number adjusting means 2e sets the two stages on the side having a large number of decompression stages. Therefore, the flow rate of the raw material gas G0 taken out from the gas container C2 is stabilized.

The above is the detailed processing flow of the inspection process (# S4) in the inspection process method shown in FIG. 4, and after the execution of the inspection process (# S4), the next inspection target gas detector 70 belonging to the same group If (# S5) exists, the gas detector 70 to be inspected is changed in the same group, and the inspection process (# S4) is executed for the changed gas detector 70. At that time, when the diluted gas G1 generated in the dilution process is used as the inspection gas, the generated diluted gas G1 is temporarily used for the three-way valves V4 and V5 when the inspection target is changed within the same group. The dilution process is continued in the form of supplying the gas to the open portion O4 through the gas and exhausting the gas. As a result, the concentration stabilization process at the time of changing the inspection target is omitted, and the time required for the change is shortened.

When shifting to the inspection process of the next gas detector 70 to be inspected belonging to the same group, the predetermined first cleaning process (# S8) is executed, and the inspection process of the gas detector 70 in the same group is performed. When all of the above are completed, a predetermined second cleaning process (# S9) is executed.

[Cleaning process]
In the first cleaning process (# S8) to be executed when shifting to the inspection process of the next gas detector 70 to be inspected belonging to the same group, the gas introduction unit 72 of the gas detector 70 is made to introduce the atmospheric OA. Cleaning of the gas detector 70 (hereinafter referred to as "gas detector cleaning") is performed.
On the other hand, in the second cleaning process (# S6) executed when all the inspection processes of the gas detector 70 in the same group are completed, in addition to the gas detector cleaning, the diluted gas G1 or the raw material gas G0 as a raw material thereof is added. The atmosphere OA is passed through the gas path through which the gas passes to clean the gas path (hereinafter referred to as "gas path cleaning").
Note that FIG. 12 shows the operating state and the gas flow state of various auxiliary machines when the gas path cleaning and the gas detector cleaning are performed at the same time.

(Gas path cleaning)
Specifically, in the gas path cleaning, the raw material gas G0 from the gas container C2 is obtained by closing the two-way valve V10 from the state of the gas alarm confirmation process (# S15) and the calibration process (# S17) in FIG. The flow meter through which the raw material gas G0 was flowing through the gas alarm confirmation process (# S15), etc., by setting the switching state of the three-way valves V8 and V14 and setting the switching state of the three-way valves V8 and V14, and the atmospheric OA taken in from the open portion O3. It is passed through the gas path 6b on the Mf2 side. As a result, the raw material gas G0 remaining in the gas path 6b is replaced with the atmospheric OA, and the gas path 6b is cleaned.

Further, the atmospheric OA after passing through the gas path 6b is an inspection gas path from the confluence portion B1 to the branch portion B2 through which the diluted gas G1 and the raw material gas G0 have passed in the gas alarm confirmation process (# S15) or the like. Pass 6c. As a result, the diluted gas G1 remaining in the inspection gas path 6c is replaced with OA in the atmosphere, and the inspection gas path 6c is cleaned.
Then, by executing such gas path cleaning, in the next inspection process for the gas detector 70 to be inspected, erroneous inspection due to the diluted gas G1 and the raw material gas G0 remaining in the gas path can be avoided.
In this gas path cleaning, the atmospheric OA supplied to the branch portion B2 after passing through the gas path 6b and the inspection gas path 6c passes through the open portion O4 by setting the switching state of the three-way valves V1 and V5. It is exhausted to the outside.

In the gas path cleaning executed after the calibration process (# S17) in the case of performing the non-dilution treatment shown in FIG. 13, the atmospheric OA is passed through the path through which the raw material gas G0 has passed in the calibration process (# S17). It is desirable to let it flow. That is, by setting the switching state of the three-way valves V14, V8, and V13, the atmospheric OA taken in from the open portion O3 is passed through the atmospheric supply path 6a. As a result, in the calibration process (# S17) in the case of performing the non-dilution treatment, the raw material gas G0 remaining in the path through which the raw material gas G0 has passed is replaced with the atmospheric OA, and the path is cleaned. In this cleaning process, the atmospheric OA taken in from the opening portion O3 may be supplied from the three-way valve V13 to the gas path 6b side, and the atmospheric OA may be returned from the three-way valve V8 to the three-way valve 12 side.

Further, in the gas path cleaning, when the gas detector cleaning executed at the same time is completed, the switching state of the three-way valve V1 is set, and the atmospheric OA in the branch portion B2 is supplied to the three-way valve V1 side. Then, the dilution gas G1 and the raw material gas G0 remaining in the path from the branch portion B2 to the three-way valve V1 are replaced with the atmospheric OA, and the path is cleaned.

(Gas detector cleaning)
On the other hand, in the gas detector cleaning, as in the initial confirmation process (# S12) described above, the gas supply joint 5a to which the gas introduction portion 72 of the gas detector 70 is connected is opened to the opening portion O1 to open the gas. An atmospheric OA taken in from the open portion O1, that is, a fresh atmospheric OA different from the one that has passed through the gas path is introduced into the gas introduction unit 72 of the detector 70. Then, the atmospheric OA is introduced into the gas detector 70 via the gas introduction unit 72, and passes through the sensor unit 76. As a result, the diluted gas G1 and the raw material gas G0 remaining in the gas introduction unit 72 and the sensor unit 76 on the gas detector 70 side are replaced with the atmospheric OA, and the gas detector 70 is cleaned.
The gas detector cleaning ends when it is determined from the output signal of the sensor unit 76 of the gas detector 70 that the concentration of the detected component in the introduced gas has become substantially zero.

Then, by executing such gas detector cleaning, when the gas detector 70 is used immediately after the inspection process, erroneous detection caused by the inspection gases G0 and G1 remaining in the gas introduction unit 72 and the like can be avoided. To.
In this gas detector cleaning, the exhaust EA discharged from the exhaust portion 77 of the gas detector 70 is taken in together with the ambient air from the opening 59 and discharged to the outside from the open portion O4 via the exhaust joint 5b. To. This prevents the exhaust EA from being discharged from the front surface on the accommodating portion 5 side. Further, the exhaust EA sucked from the opening 59 is discharged together with the atmospheric OA after passing through the gas path 6b and the inspection gas path 6c by the gas path cleaning. This simplifies the exhaust path for gas detector cleaning and gas path cleaning.
It should be noted that these exhaust EA and atmospheric OA may be discharged to the outside separately.

In the present embodiment, the gas path cleaning and the gas detector cleaning are configured to be performed in different atmospheric OA, but for example, the atmosphere passing through the gas path is introduced into the gas detector 70 to perform the cleaning of each. May be configured to be performed in the same atmosphere.

Further, in the present embodiment, various processes are configured to be executed as the inspection process (# S4) for checking the state of the gas detector 70, but these processes may be omitted or modified as appropriate. Absent.

2d Inspection processing means 2e Decompression processing means 6 Diluting processing means 70 Gas detector 72 Gas introduction unit 100 Inspection processing system BL Bypass C1 Gas container C1a Gas container connection C2 Gas container C2a Gas container connection G0 Raw material gas (for inspection) gas)
G1 diluted gas (inspection gas)
OA Atmosphere V11 Three-way valve (bypass valve)

Claims (4)

For a gas detector with a gas alarm function that outputs a predetermined gas alarm according to the state of the detection component in the introduced gas introduced from the gas introduction unit, inspection gas is supplied to the gas introduction unit of the gas detector. It is an inspection processing system of a gas detector equipped with an inspection processing means for executing an inspection processing for checking the state of the gas detector.
A gas container connection portion to which a gas container for storing the raw material gas as a raw material for the inspection gas in a compressed state is connected, and
A decompression means for decompressing and taking out the raw material gas from the gas container connected to the gas container connection portion is provided.
The depressurizing means is configured to have a plurality of decompressors and to have a variable number of decompression stages in which the number of decompression stages, which is the number of decompressors through which the raw material gas passes, can be changed.
An inspection processing system for a gas detector including a decompression stage number adjusting means for adjusting the number of decompression stages of the decompression means according to an execution state of the inspection processing by the inspection processing means. The decompression means is provided with a dilution treatment means for producing a dilution gas by diluting the raw material gas after decompression with the atmosphere.
As the inspection process, the inspection processing means supplies the diluted gas generated by the dilution processing means to the gas introduction portion of the gas detector as the inspection gas, and confirms whether or not there is an abnormality in the gas alarm function. The confirmation process and the calibration process of supplying the raw material gas taken out from the gas container to the gas introduction portion of the gas detector as the inspection gas and calibrating the sensitivity of the gas detector are executed.
The first aspect of the present invention, wherein the depressurizing stage adjusting means sets the number of decompressing stages of the depressurizing means when the dilution processing means is operating to be smaller than the number of decompressing stages of the decompressing means when the dilution processing means is not operating. Inspection processing system for gas detectors. The decompressing means includes an upper decompressor connected to the gas container connection portion, a lower decompressor connected to the secondary side of the upper decompressor, and a secondary side of the upper decompressor and the lower decompressor. The inspection processing system for a gas detector according to claim 1 or 2, which comprises a bypass path connecting the secondary side and a bypass valve capable of opening and closing the bypass path. With a pair of gas container connections
The decompression means connected to the gas container connection portion is configured to have a variable number of decompression stages.
The inspection of the gas detector according to any one of claims 1 to 3, wherein the decompression means connected to the other gas container connection portion is configured as a decompression stage number fixed type in which the decompression stage number is fixed. Processing system.

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