JP2018173686A - Inspection processing system for gas detector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique that performs an appropriate inspection processing by avoiding inspection processing for a nonconforming gas detector in which a detection component that cannot be supplied as an inspection gas is a detection target in an inspection processing system for a gas detector for performing inspection processing in which a state of the gas detector housed in a housing unit is inspected.SOLUTION: An inspection processing system for a gas detector comprises gas detector information acquisition means for acquiring detection component information on a gas detector side about the detection component from the gas detector housed in a housing unit. In inspection processing means, compatibility confirmation processing (#S1) is performed for confirming the compatibility between the detection component information on the gas detector side acquired from the gas detector and inspection gas suppliable information about suppliable inspection gas to the gas detector, before the inspection processing is performed to the gas detector housed in the housing unit. When nonconformity is found in the compatibility confirmation processing, inspection processing (#S4) for the gas detector is inhibited from performing.SELECTED DRAWING: Figure 4

Description

  The present invention includes an accommodating portion that accommodates a gas detector that outputs a predetermined gas alarm according to the state of a detected component in the introduced gas introduced from the gas introducing portion, and the gas detector accommodated in the accommodating portion. The present invention relates to an inspection processing system for a gas detector provided with inspection processing means for executing an inspection process for supplying a gas for inspection to a gas introduction section and inspecting the state of the gas detector.

  When using a gas detector that has 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 is necessary to check regularly. Therefore, an inspection processing system for automatically inspecting such a gas detector is known (for example, see Patent Document 1).

  In the inspection processing system for a gas detector disclosed in Patent Document 1, as the inspection processing, a bump test is performed in which an inspection gas is supplied to the gas introduction part of the gas detector to check whether there is an abnormality in the gas alarm function in the gas detector. A gas alarm confirmation process (confirmation test process), also called as, is executed. Specifically, in this gas alarm confirmation process, the gas supply unit (gas supply tube connection unit 75) is used for the gas detectors (gas detectors 10A and 10B) housed in the housing unit (mounting units 50 and 55). The inspection gas (specific gas) is supplied via the gas sensor, and it is confirmed whether or not the concentration indicator value of the gas detector is appropriate.

JP 2013-257160 A

  There are several types of gas detectors that have different detection components to be detected. However, in the inspection processing system, only gas detectors that detect specific detection components that can be supplied as inspection gas. Are to be detected. Therefore, if a non-conforming gas detector that detects a detection component that cannot be supplied as inspection gas by mistake is set in the storage unit of the inspection processing system, the inspection gas leaks or an erroneous inspection result is obtained. The problem arises.

  In view of this situation, the main problem of the present invention is that an inspection process system for a gas detector that performs an inspection process for inspecting the state of the accommodated gas detector by accommodating the gas detector in an accommodating portion. The present invention is to provide a technique capable of performing an appropriate inspection process by avoiding an inspection process for a non-conforming gas detector that detects a detection component that cannot be supplied as a working gas.

The first characteristic configuration of the present invention includes an accommodating portion that accommodates a gas detector that outputs a predetermined gas alarm according to the state of the detection component in the introduced gas introduced from the gas introducing portion,
An inspection processing system for a gas detector, comprising inspection processing means for supplying an inspection gas to a gas introduction portion of the gas detector housed in the housing portion and performing an inspection process for inspecting the state of the gas detector. There,
Gas detector information acquisition means for acquiring gas detector side detection component information related to the detection component from the gas detector stored in the storage unit,
The inspection processing means can supply the gas detector side detection component information acquired from the gas detector and the gas detector before executing the inspection process for the gas detector accommodated in the accommodating portion. The compatibility check process for confirming the compatibility with the check gas supply availability information on the correct check gas is executed, and when the nonconformity is confirmed in the suitability check process, the check process for the gas detector is executed. It is in the point to prohibit.

According to this configuration, the gas detector side detection component information acquired from the gas detector and the inspection gas supply availability information relating to the inspection gas that can be supplied to the gas detector prior to the inspection process are matched. The conformity confirmation process can be executed in a form for confirming the compatibility. Therefore, it is possible to determine whether or not the inspection process can be performed after confirming whether or not a gas detector whose detection target is a detection component that matches the supply of inspection gas that can be supplied is stored in the storage unit. And, for example, when a non-conforming gas detector is set in the housing part, the execution of the inspection process is appropriately prohibited, and a leakage of inspection gas due to the non-conformity or an erroneous inspection result is obtained. The problem can be avoided, and the inspection process can be appropriately executed only when a gas detector suitable for the accommodation unit is set.
Therefore, the present invention provides an inspection processing system for a gas detector that can perform an appropriate inspection process by avoiding an inspection process for a non-conforming gas detector that detects a detection component that cannot be supplied as an inspection gas. be able to.

The second characteristic configuration of the present invention operates in the main detection mode in which the main detection component is the detection target, and sets the sub detection component different from the main detection component by the mode switching operation in the main detection mode. A multi-component storage unit capable of storing a multi-component gas detector operating in the sub detection mode as the gas detector,
A plurality of types of inspection gas can be alternatively supplied to the multi-component gas detector housed in the multi-component housing section.

  According to this configuration, by providing the multi-component container, the multi-component gas detector accommodated in the multi-component container can be inspected, and a plurality of types of inspection can be performed on the multi-component gas detector. The inspection process can be appropriately executed in the form of alternatively supplying the working gas. That is, the inspection process corresponding to the main detection component is supplied to the multi-component gas detector housed in the multi-component housing portion in the initial main detection mode, and then the inspection process is performed. The inspection process corresponding to the sub-detection component can be supplied to the multi-component gas detector in the sub-detection mode by performing the mode switching operation.

  According to a third characteristic configuration of the present invention, the inspection processing means has an inspection gas corresponding to a main detection component of the multi-component gas detector when the multi-component gas detector is stored in the storage portion. When the compatibility check process is performed in a form for determining whether or not the gas detector for multiple components can be supplied, and when it is determined that the supply is impossible, the gas detector for the multiple components is The point is to prohibit the execution of the inspection process.

According to this configuration, in the compatibility confirmation process executed for the multi-component gas detector accommodated in the accommodating portion, the inspection gas corresponding to the main detection component of the multi-component gas detector is the multi-component gas. It is possible to confirm whether or not a suitable multi-component gas detector has been accommodated in a form for determining whether or not the gas detector can be supplied.
If the inspection gas corresponding to the main detection component cannot be supplied, it is assumed that a non-conforming gas detector has been set for the container, and the execution of the inspection process is appropriately prohibited, and the main detection mode is set. It is possible to avoid problems caused by such incompatibility, such as supplying inspection gas that does not correspond to the main detection component to the multi-component gas detector operating in (1).
On the other hand, if the inspection gas corresponding to the main detection component can be supplied, the inspection gas corresponding to the sub detection component cannot be supplied, for example, assuming that the gas detector suitable for the housing portion is set. Even in such a case, the inspection process using the inspection gas corresponding to at least the main detection component can be appropriately executed. For example, when the multi-component gas detector is stored in the single-component storage unit or the multi-component storage unit, at least the inspection gas corresponding to the main detection component is supplied to the multi-component gas detector. If supply is possible, the inspection process using the inspection gas corresponding to the main detection component can be executed.

  According to a fourth characteristic configuration of the present invention, when the single component gas detector for which the inspection processing means detects only a specific detected component is accommodated in the multiple component accommodating portion, the single component is detected. It is in the point which prohibits execution of the said inspection process with respect to the industrial gas detector.

  According to this configuration, when a single-component gas detector is stored in the multi-component storage unit, an inspection process is performed on the assumption that an incompatible gas detector is set in the multi-component storage unit. Can be avoided, and problems caused by such incompatibility, such as supplying a plurality of inspection gases by mistake when the single-component gas detector is for a plurality of components, can be avoided.

In the fifth characteristic configuration of the present invention, an adapter that allows the specific gas detector to be accommodated in the accommodating portion is detachably attached to the accommodating portion.
Comprising adapter information acquisition means for acquiring adapter-side detection component information relating to the detection component of the specific gas detector from an adapter attached to the housing;
The inspection processing means generates the inspection gas supply possibility information based on the adapter-side detection component information acquired from the adapter in which the gas detector is accommodated.

  According to this configuration, in the form in which the adapter is interposed with respect to the housing portion, a plurality of types of gas detectors can be housed in the housing portion by changing the adapter. And in performing the said compatibility confirmation process prior to the said inspection process, the gas detector side detection component information acquired from the gas detector, and the adapter side detection component information acquired from the adapter in which the gas detector is accommodated A gas detector that detects a detection component that matches the inspection gas that can be supplied via the adapter is accommodated in the accommodating portion in a form that confirms the compatibility with the inspection gas supply possibility information generated based on It is possible to determine whether or not the inspection process can be performed after confirming whether or not the inspection process has been performed.

External view of gas detector inspection processing system The top view explaining the schematic structure of a gas detector, and the internal structure of the adapter in which the gas detector was accommodated Exploded perspective view of adapter Flow chart showing the flow of the inspection processing method carried out by the inspection processing system The flowchart which shows the flow of the inspection process performed with the inspection processing method of FIG. The figure which shows the example of a display of the display of an inspection processing system The figure which shows the operating state of various auxiliary machines in the initial confirmation processing and the gas flow state The figure which shows the operating state and gas flow state of various auxiliary machines in the blockage alarm confirmation processing and concentration stabilization processing The figure which shows the operating state of various auxiliary machines and the gas flow state in the suction flow rate confirmation processing and concentration stabilization processing The figure which shows the operation state of various auxiliary machines in the concentration stabilization process in a standby state, and the gas flow state The figure which shows the operating state of various auxiliary machines and the gas flow state in the gas alarm confirmation processing in the inspection processing The figure which shows the operating state of various auxiliary machines in a cleaning process, and the gas flow state The figure which shows the operation state of various auxiliary machines and the gas flow state in the calibration process in the inspection process The figure which shows the structure of control and communication in an inspection system, an accommodating part, and a gas detector The figure which shows another operation state and gas flow state of various auxiliary machines in the gas alarm confirmation process in an inspection process The figure which shows another operation state of various auxiliary machines in the calibration process in an inspection process, and a gas flow state

Embodiments 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 that implements an inspection processing method for inspecting the state of the gas detector 70, and a housing portion 5 for housing the gas detector 70 is provided in the front. The system main body 1 and the adapter 50 that is detachably attached to the housing portion 5 and that allows the gas detector 70 to be housed in the housing portion 5 are provided.

  In the present application, the surface (the front surface in FIG. 1, the lower surface in FIG. 2, the left front surface in FIG. 3) on which the housing 5 and the display 3 are provided in the system body 1 is referred to as “front”. The direction in which the front faces is called the “frontal direction”. On the other hand, the surface on the opposite side of the front is referred to as “rear surface”, and the direction toward the rear surface is referred to as “depth direction”. The left side in front view is simply referred to as “left side”, and the right side in front view is simply referred to as “right side”.

[Gas detector]
First, the configuration of the gas detector 70 will be described with reference to FIGS. 1 and 2.
Although details will be described later, the gas detector 70 is predetermined according to the state of, for example, combustible gas (hydrogen, methane, propane, etc.) or carbon monoxide as a detection component in the introduced gas introduced from the gas introduction unit 72. And a gas alarm function for outputting a predetermined gas alarm when the gas introduction unit 72 is closed.

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 part 72 is configured by a substantially cylindrical cylindrical part 74 protruding from the detector main body 71 and a pointed suction nozzle 73 connected to the distal end side of the cylindrical part 74. On the other hand, the detector main body 71 is provided with a suction pump 75 for sucking an external gas through the gas introduction part 72, whereby the gas detector 70 is positively connected from the suction nozzle 73. It is configured as a suction type for sucking gas.
Further, the detector main body 71 is supplied with the introduced gas sucked by the suction pump 75 and is configured by a sensor unit 76 configured by a sensor element or the like that is sensitive to a detected component in the introduced gas, and a control unit comprising a computer. 78 etc. are provided.

  A display operation unit 80 for performing predetermined display and input operation is provided on the front surface of the gas detector 70, and the control unit 78 obtains the detected component concentration in the introduced gas from the output signal of the sensor unit 76, In addition to displaying on the display operation unit 80 provided in the detector main body 71 and when the combustible gas concentration exceeds the allowable range, a predetermined gas is displayed on the display operation unit 80 in order to notify the operator. 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). 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 driving power of the suction pump 75 or the like when the suction pump 75 is operated. If the pump load is abnormally high during the operation of the suction pump 75, it is determined that the state of the gas introduction part 72 is a closed state that is blocked by dust or the like. Then, in order to notify the operator of this occlusion state as an occlusion abnormality, a predetermined occlusion alarm display is displayed on the display operation unit 80, and further, the speaker 82 is configured to generate a predetermined occlusion alarm sound. Yes. Such a function is called a blockage alarm function.

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

  Further, as the gas detector 70, there are 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 targets are a plurality of detection components. The multi-component gas detector 70 operates in a main detection mode in which a 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, a detailed configuration of the inspection processing system 100, that is, a 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. However, in addition to the suction type gas detector 70, gas is naturally introduced into the sensor unit. Diffusion type gas detectors may be the inspection target. In this case, necessary processes may be added as appropriate or unnecessary processes may be omitted as appropriate.

[System unit]
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, the front surface of the system main body 1 is provided with four accommodating portions 5 for accommodating the gas detectors 70, so that a plurality of gas detectors 70 can be inspected. Is possible. On the front surface of the system main body 1, in addition to the housing portion 5, devices such as the display 3 and other operation switches and speakers are arranged, and further, the 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 is sensitive in a compressed state is detachably attached to the pair of gas container connection parts C1a and C2a. Although details will be described later, the raw material gas stored in the gas containers C1 and C2 is appropriately diluted with the atmosphere and used as an inspection gas.

  The adapter 50 attached to the housing portion 5 of the system body 1 can accommodate a single-component gas detector 70 that can accommodate a single-component gas detector 70 and a multi-component gas detector 70. For multiple components. Then, by installing the two types of gas containers C1 and C2 storing the raw material gases of different components in the gas container connection portions C1a and C2a, the inspection processing system 100 is equipped with an adapter for multiple components mounted in the storage unit 5. When a gas detector 70 for a plurality of components is accommodated in 50, a plurality of types of inspection gases can be selectively supplied to the gas detector 70.

All four accommodating parts 5 are formed as a common rectangular cross-sectional recessed part opened to the front side.
As shown in FIGS. 1 and 2, on the inner back surface side of the housing portion 5, an air supply that is a gas supply portion for supplying a gas such as an inspection gas to the gas introduction portion 72 of the gas detector 70. The joint 5a for exhaust, the exhaust joint 5b that 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 in the adapter 50 are connected. A connector 5c is arranged.
In FIG. 1, a cover 5 d is provided on the front surface of the accommodating portion 5 to which the adapter 50 is not mounted in order to prevent erroneous insertion of the gas detector 70.

  As shown in FIG. 14, the connector 5 c is connected to the control unit 2 that is also a computer provided in the system main body 1. Therefore, when the connector 55 of the base 52 on the adapter 50 side and the connector 5c on the system main body 1 side are connected, the control unit 2 on the system main body 1 side allows the communication unit 54 (accommodating unit side communication unit on the adapter 50 side). Function as communication means 2a capable of command-response wired communication. That is, in the communication between the communication unit 2a and the plurality of communication units 54, first, the communication unit 2a sets communication ID information for designating the communication unit 54 that requests a response signal response to each communication unit 54. Send the added command signal all at once. Then, the communication unit 54 corresponding to the communication ID information added to the received command signal among the communication units 54 that has received it returns a response signal corresponding to the command signal to the communication unit 2a, thereby enabling communication. 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 the resistance value of a resistance element (not shown) provided in the connector 5c, for example, and identifies the accommodation unit number (for identifying the accommodation unit 5 in which the adapter 50 is mounted). For example, when there are four storage units 5, the storage unit ID information such as 1 to 4) functions as the ID information acquisition unit 54a that acquires the communication ID information used for communication with the communication unit 2a.
Further, the ID information acquisition unit 54a receives the storage unit ID information when the acquisition of the storage unit ID information from the connector 5c side has failed due to factors such as the adapter 50 not being properly attached to the storage unit 5. It is configured to acquire failure-time ID information other than the housing unit number (for example, 0) different from that as the communication ID information.

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

As shown in FIG. 14 and the like, the control unit 2 on the system main body 1 side functions as inspection processing means 2d that executes predetermined inspection processing, as will be described in detail later, by executing a predetermined program.
Further, in addition to the inspection processing unit 2d, the control unit 2 includes a gas detector information acquisition unit 2b that can acquire gas detector information related to the gas detector 70 stored in the storage unit 5, and a storage unit 5. It functions also as adapter information acquisition means 2c capable of acquiring adapter information relating to the mounted adapter 50. As will be described in detail later, as decompression stage number adjustment means 2e, attachment abnormality determination means 2f, and empty state determination means 2g Also works.

The gas detector information acquisition unit 2b communicates with the control unit 78 on the gas detector 70 side accommodated in the storage unit 5 with the adapter 50 interposed therebetween. Gas detector information including gas detector-side detection component information such as a model that can identify 70 detection components is acquired in association with storage unit ID information that identifies the storage unit 5 in which the gas detector 70 is stored.
On the other hand, the adapter information acquisition unit 2c communicates with the communication unit 54 on the adapter 50 side mounted in the storage unit 5, so that a specific gas detector that can be stored in the adapter 50 from the communication unit 54 is obtained. Adapter information including adapter-side detection component information such as a model that can identify 70 detection components is acquired in association with storage unit ID information that identifies the storage unit 5 in which the adapter 50 is mounted.
Furthermore, the adapter information acquisition unit 2c compares the adapter-side detection component information included in the acquired adapter information with the source gas component information related to the components of the source gas stored in the gas containers C1 and C2 registered in advance. When the detected component identified by the adapter-side detected component information matches the component of the source gas identified by the source gas component information, the adapter 50 is connected to the gas detector 70 accommodated in the adapter 50. Assuming that the inspection gas containing the detection component designated on the side can be supplied, the adapter-side detection component information is acquired as inspection gas supply availability information regarding the inspection gas that can be supplied to the gas detector 70.

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

As shown in FIGS. 7 to 13, the system main body 1 is provided with open portions O1 to O4 that are opened to the outside to take in the atmosphere OA or discharge the exhaust EA to the outside. Although omitted, the open portions O <b> 1 to O <b> 4 are provided on the back side of the system main body 1. Furthermore, various paths are provided in the system main body 1 to connect the air supply joint 5a and the exhaust joint 5b provided in the housing part 5, and the open parts O1 to O4 and the gas container connection parts C1a and C2a. 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 pressure reducer), and filters F1 to F3. Etc. are arranged. The pressure values measured by the pressure gauges Mp1 to Mp5 and the flow values measured by the flowmeters Mf1 to Mf3 are input to the control unit 2, and the control unit 2 is based on these input signals and the like. Operation control of valves V1-V14, pumps P1, P2, and pressure regulators R1, R21, R22 is executed.
7 to 13, in the valves V <b> 1 to V <b> 14, the closed ports are indicated by black triangles, and the open ports are indicated by white triangles.

For example, as shown in FIG. 8, the gas paths 6b through which the raw material gas G0 taken from the gas containers C1 and C2 in the dilution process described later flows from the gas containers C1 and C2 to the pressure gauges Mp4 and Mp5, Each pressure regulator R1, R21, R22, the respective two-way valves V9, V10, the three-way valves V8, V11, the flow rate adjusting valve V7, the flow meter Mf2, etc., are provided as paths to the junction B1. Yes.
For example, as shown in FIG. 11, the inspection gas path 6c through which the inspection gases G0 and G1 flow passes from the junction B1 via the three-way valve V4, the three-way valve V3, the branching part B2, the three-way valve V1, and the like. And is provided as a route to the air supply joint 5a.
A path through which the inspection gases G0 and G1 flow like the gas path 6b and the inspection gas path 6c is referred to as a gas path.

In addition, an atmosphere supply path 6a through which the atmosphere OA for diluting the raw material gas G0 in a dilution process described later flows, for example, as shown in FIG. 11, from an open portion O3, a filter F3, a pump P1, a three-way valve V14, It is provided as a route to the junction B1 via the three-way valve V13, the flow rate adjusting valve V12, the flow meter Mf3, and the like.
Further, the air release path through which the air supply joint 5a can be opened to the atmosphere is, for example, as shown in FIG. 9, from the air supply joint 5a via the three-way valve V1, the three-way valve V3, the flow meter Mf1, and the filter F2. Thus, 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 depressurized by the pressure regulators R1, R21, and R22 using the air OA, and will be described later. Functions as a dilution processing means 6 capable of executing a dilution process for generating a dilution gas G1 used as an inspection gas.

The pressure regulators R1, R21, R22 provided in the respective gas container connection portions C1a, C2a are decompression means for decompressing and extracting the source gas G0 from the gas containers C1, C2 connected to the gas container connection portions C1a, C2a. Function as.
Further, the pressure reducing means on the gas container connecting part C1a side has a single pressure regulator R1, and is configured to have a fixed pressure reducing stage number in which the number of pressure regulators that is the number of pressure regulators through which the raw material gas G0 passes is fixed to one stage. Has been.

On the other hand, the pressure reducing means on the gas container connecting part C2a side has two pressure regulators R21 and R22, and the number of pressure reducing stages, which is the number of pressure regulators through which the raw material gas G0 passes, can be changed between one stage and two stages. The pressure reducing stage number is variable.
Specifically, an upper pressure regulator R21 (an example of an upper pressure reducer) connected to the gas container connection C2a, and a lower pressure regulator R22 (an example of a lower pressure reducer) connected to the secondary side of the upper pressure regulator R21. Are arranged in series. Further, a bypass path BL that connects 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, a check valve CV is provided on the outlet side of the regulator R22 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 passage BL. 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 passage BL, the raw material gas G0 flowing out of the gas container C2 will flow into the upper pressure regulator R21 and the lower step. It flows through the pressure regulator R22 in this order, and is set to two stages on the side where the number of decompression stages is large. On the other hand, as shown in FIG. 11, by operating the three-way valve V11 and permitting the flow of the raw material gas G0 to the bypass passage BL, the raw material gas G0 flowing out of the gas container C2 passes only to the upper pressure regulator R21. Therefore, it is set to one stage on the side where the number of decompression stages is small.
As will be described in detail later, the decompression stage number adjusting means 2e functioning by the control unit 2 is used when the inspection process is performed by the inspection processing means 2d using the raw material gas G0 stored in the gas container C2 as the inspection gas. The three-way valve V11 is operated in accordance with the state of execution of the inspection process, and the pressure reducing stage number of the pressure reducing stage variable pressure reducing means composed of the pressure regulators R21, R22 and the like is adjusted. .
In the present embodiment, the C1a-side decompression means is configured as a fixed decompression stage number and the C2a-side decompression means is configured as a variable decompression stage number, but conversely, the C1a-side decompression means is configured as a decompression stage variable type. In addition, the pressure reducing means on the C2a side may be configured to have a fixed number of pressure reducing stages. Further, both the C1a side and C1b side decompression means may be configured to be variable in the number of decompression 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 into the interior of the housing portion 5 from the front side, and the adapter 50 is located above and below the front side of the adapter 50 with respect to the system body 1. A mounting claw 64 for fixing the screw with a screw is formed so as to protrude in the vertical direction.
The adapter 50 is inserted in the depth direction from the front side with respect to the housing portion 5, and the mounting claws 64 of the adapter 50 are fixed to the edge portion of the housing portion 5 with screws. Installed.

  The adapter 50 may be attached to the system main body 1 prior to the inspection of the gas detector 70. However, in order to prevent erroneous selection or attachment, the user does not need to perform the installation. It is desirable to do it on the (manufacturer etc.) side. That is, the delivery source 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 this, the inspection processing in which the appropriate adapter 50 is attached to the system main body 1 in advance. The system 100 is delivered to the user. Further, the supplier can change the adapter 50 based on the change of the adapter 50 used by the user at the time of maintenance or overhaul.

  The adapter 50 is provided with a gas detector accommodating portion 60 which is a rectangular cross-sectional recess for accommodating the gas detector 70 through the opening on the front side. The gas detector accommodating portion 60 is configured such that the shape thereof and the arrangement of various parts provided on the gas detector conform to a predetermined type of the gas detector 70, and the gas detector 70 has a plurality of types of gas detectors 70. Plural types of adapters 50 suitable for each are prepared. Accordingly, a plurality of types of gas detectors 70 can be accommodated in a form in which the adapter 50 is interposed with respect to the common accommodating portion 5, and the gas detector 70 owned by the user is contained in the accommodating portion 5. The adapter 50 corresponding to the model is selected and mounted.

As shown in FIG. 3, the adapter 50 is composed of an upper and lower divided structure composed of an upper casing 50a and a lower casing 50b, and the gas detector housing portion 60 described above is provided with a recess on the lower surface side of the upper casing 50a. It forms in the form which combines with the recessed part of the upper surface side of the lower casing 50b.
Exhaust guide 57 provided with exhaust tube 57 and filter 58 is provided on the lower surface side of upper casing 50a of adapter 50 and the upper surface side of lower casing 50b, in addition to gas detector housing 60, as will be described in detail later. A path 56, an air supply guide path 61 in which an air supply tube 62 is provided, a base accommodating part 51 in which a base 52 provided with a communication element 53, a communication part 54, and the like are accommodated, and a communication path 63 are formed. Various recesses are provided.

  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 from the gas detector 70 accommodated in the accommodating portion 5 to the exhaust joint 5b. The exit direction is a direction 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 with respect to the gas detector accommodating portion 60, and the opening 59 is a gas detector 70 accommodated in the gas detector accommodating portion 60. The exhaust portion 77 is disposed to face the exhaust portion 77 with a predetermined interval. Further, the gas suction flow rate of the exhaust joint 5b (ie, the suction flow rate of the pump P2 on the system body 1 side (see FIGS. 7 to 13)) is the exhaust flow rate of the gas detector 70 (ie, the suction pump on the gas detector 70 side). More than 75 (suction flow rate). Thereby, the exhaust discharged from the exhaust part 77 of the gas detector 70 can be reliably sucked into the exhaust guide path 56 from the opening 59. Furthermore, in addition to the exhaust from the gas detector 70, the air around the gas detector housing 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 safely discharged from the system body 1 side to the outside. 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 fitted inside the filter 58. The back end of the exhaust tube 57 is fitted and connected to an exhaust joint 5b provided on the inner back surface side of the housing portion 5, and the connection direction is the mounting direction of the adapter 50 to the housing portion 5 ( That is, it is set in a direction along the depth direction. Thus, when the adapter 50 is attached to the housing portion 5, the exhaust tube 57 can be easily connected to the exhaust joint 5b. 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 housing 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 a direction along the mounting direction (that is, the depth direction) of the adapter 50 to the accommodating portion 5. An air supply tube 62 is fitted in the air supply guide path 61. The front end of the air supply tube 62 is fitted and connected to the suction nozzle 73 of the gas detector 70 accommodated in the gas detector accommodating portion 60, and the connecting direction thereof is connected to the gas detector accommodating portion 60. It is set in a direction along the insertion direction (that is, the depth direction) of the gas detector 70. Thus, when the gas detector 70 is inserted into the gas detector housing 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 an air supply joint 5 a provided on the inner back surface side of the housing portion 5, and the connection direction thereof is the adapter 50 to the housing portion 5. Is set in a direction along the mounting direction (that is, the depth direction). This makes it possible to easily connect the air supply tube 62 to the air supply joint 5a when the adapter 50 is attached to the housing portion 5.

  The base accommodating part 51 is provided adjacent to the left side of the exhaust guide path 56, and its extending direction is a direction along the mounting direction (that is, the depth direction) of the adapter 50 to the accommodating part 5. In this base accommodating part 51, a plate-like base 52 is accommodated in a posture in which the plate surface is perpendicular to the left-right direction. And the connector 55 provided in the back | inner side edge part of this base | substrate 52 is fittingly connected to the connector 5c provided in the inner back surface side of the accommodating part 5, and the connection direction is the adapter 50 to the accommodating part 5. Is set in a direction along the mounting direction (that is, the depth direction). Thus, when the adapter 50 is attached to the housing portion 5, the connector 55 on the adapter 50 side can be easily connected to the connector 5c on the system body 1 side.

Further, a communication unit 54 composed of a CPU or the like is disposed on the base 52, and a gas detector 70 accommodated in the gas detector accommodating unit 60 is further provided on the surface on the gas detector accommodating unit 60 side. A communication element 53 for performing infrared communication with the communication element 79 is disposed.
And the adapter 50 is formed in the adapter 50 with the attitude | position extended in the left-right direction for the infrared rays for communication transmitted / received between these communication elements 79 and 53 to pass through. Thus, when the gas detector 70 is accommodated in the gas detector accommodating portion 60 of the adapter 50, infrared communication between the communication elements 79 and 53 becomes possible when the gas detector 70 is completely accommodated. Therefore, by detecting the state in which such infrared communication is possible, it is possible to determine whether the gas detector 70 has been accommodated.
In the adapter 50, for the base 52 on which the communication unit 54 is provided, patterns of a plurality of types of communication units 54 are prepared so that they can be adopted in various adapters, and which communication unit is mounted at the time of manufacture. By making the decision, the base 52 is shared.

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

Specifically, in this attachment abnormality determination process, first, the communication unit 2a acquires the communication unit 54 of all the adapters 50 as an accommodation unit ID when the communication unit 54 fails to be attached to the connector 5c. A command signal to which ID information at the time of failure is added as communication ID information is transmitted simultaneously.
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 communication ID information due to the failure to attach to the connector 5c. In response to the signal reception, a response signal is returned to the communication means 2a.
Therefore, when the communication means 2a receives the response signal accompanying the simultaneous transmission of the command signal to which the communication ID 2a has been added as the communication ID information, the attachment abnormality determination means 2f is normally attached to the accommodation unit 5. It can be determined that there is a communication unit 54 with a mounting abnormality that has not been performed. And when such a mounting abnormality exists, that fact is displayed on the display 3, and the operator is encouraged to take measures to correct the mounting abnormality.

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

Specifically, in this empty state determination process, first, a command in which the accommodation unit ID information associated with the accommodation unit 5 is added as communication ID information to the communication unit 54 of each adapter 50 by the communication unit 2a. Send a signal all at once.
Then, when there is a communication unit 54 having the accommodation unit ID information added to the command information as communication ID information, the communication unit 2a receives a response signal from the communication unit 54. If it does not exist, the communication means 2a does not receive a response signal.
Therefore, when the empty state determination unit 2g receives a response signal with simultaneous transmission of a command signal to which the accommodation unit ID information is added, the communication unit 54 is connected to the accommodation unit 5 associated with the accommodation unit ID. It is determined that the adapter 50 is installed.
On the contrary, when the response signal is not received along with the simultaneous transmission of the command signal to which the accommodation unit ID information is added, the adapter 50 having the communication unit 54 is included in the accommodation unit 5 associated with the accommodation unit ID. It can be determined that the device is in a so-called empty state where it is not mounted, or that the communication unit 54 has a mounting abnormality. However, since this empty state determination process is executed on the assumption that the mounting abnormality has been corrected by executing the above-described mounting or higher determination process, if the response signal is not received, it is determined that the empty state is determined. Whether or not each storage unit 5 is empty is displayed on the display 3.

[Inspection processing method]
Next, an inspection processing method executed by the above-described inspection processing system 100 will be described with reference to FIGS.
First, the operator inserts the gas detector 70 of the adapter 50 attached to the storage unit 5 in a state where the gas detector 70 to be inspected is operated. In addition, when the gas detector 70 to be inspected is for a plurality of components in which the main detection component and the sub detection component are alternatively detected as the detection mode is switched, the gas detector 70 is inserted into the adapter 50 attached to the accommodating portion 5 in a state where it is operated in the main detection mode in which the main detection component is a 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, the communication element 79 on the gas detector 70 side, and the communication element 53 on the adapter 50 side. It becomes a state where infrared communication is possible. And the control part 2 by the side of the system main body 1 determines the state where the infrared communication is possible as the completion of the accommodation of the gas detector 70.

The control unit 2 then displays an initial screen (FIG. 3) on the display 3 in a state where the gas containers C1 and C2 are connected to the respective gas container connection units C1a and C2a and the gas detector 70 is stored in the storage unit 5. 6 (a)) is displayed, and when the “bump test” button on the initial screen is operated by the user, execution of the inspection processing method is started. In order to omit this button operation, the inspection processing method may be automatically started when it is detected that the gas detector 70 is stored in the storage 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). After that, an inspection process (# S4) is performed on the determined gas detector 70. Further, after this inspection process (# S4) is executed, a cleaning process (# S6) is executed. Further, when a plurality of gas detectors 70 are accommodated in the four accommodating portions 5, a plurality of the gas detectors 70 are to be inspected, and a plurality of gas detectors 70 to be inspected are compared. The inspection process (# S4) is sequentially executed in series. In the present embodiment, the various processes constituting the inspection processing method are sequentially executed in series. However, the processing order thereof may be changed, at least a part of the plurality of processes may be overlapped, The execution procedure may be changed within a possible range, such as by interposing a process.
Hereinafter, the details of each process constituting these inspection processing methods will be described in order.

[Conformity confirmation processing]
In the compatibility 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 execution of the inspection process (# S4). Confirm the compatibility with.
That is, in this compatibility confirmation process (# S1), the checker gas supply possibility information generated from the adapter information of each storage unit 5 stored in advance in the storage unit 4 when the adapter 50 is mounted is referred to and stored in the storage unit 5. A gas detector adapted for the adapter 50 in a form for comparing whether or not the gas detector information of the accommodated gas detector 70 matches the inspection gas supply possibility information associated with the same accommodating portion 5. It is confirmed whether 70 is set.

  Specifically, as described above, the gas detector information includes gas detector side detection component information such as a model that can identify 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 that can identify a detection component of a specific gas detector 70 that can be accommodated in the adapter 50. The inspection gas supply possibility 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 accommodated in the adapter 50.

  Then, in the compatibility confirmation process (# S1), detection components that are suitable for the inspection gas that can be supplied in the inspection processing system 100, in other words, the source gas G0 stored in the gas containers C1 and C2 that are mounted are detected. In the form of confirming whether or not the gas detector 70 is accommodated in the adapter 50, the compatibility between the gas detector side detection component information and the inspection gas supply possibility information is confirmed.

  In addition, when a gas detector 70 for a plurality of components having a plurality of detection components as detection targets is to be inspected, the gas detector 70 is operated in a main detection mode in which the main detection components are detection targets. Is accommodated in the adapter 50. When the multi-component gas detector 70 is accommodated in the adapter 50, an inspection gas corresponding to at least the main detection component of the gas detector 70 can be supplied to the gas detector 70. In the form of determining whether or not, the compatibility confirmation process (# S1) for confirming whether or not the gas detector 70 suitable for the adapter 50 has been set is executed. Although details will be described later, when the adapter 50 is used for a plurality of components, in the compatibility confirmation process (# S1), the inspection gas corresponding to the sub-detection component of the gas detector 70 is supplied to the gas detector 70. It is also determined whether or not supply is possible.

  In this compatibility 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 form of the compatibility confirmation process (# S1) differs depending on the type. Hereinafter, examples of confirmation criteria for each case will be described.

(Case 1: When the multi-component gas detector 70 is set in the multi-component adapter 50)
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. Thus, the compatibility check process (# S1) is executed.
When the inspection gas corresponding to both detection components can be supplied, it is determined that the gas detector 70 suitable for the adapter 50 is set, and on the other hand, the inspection gas corresponding to at least one detection component is determined. If it is impossible to supply the gas detector 70, it is determined that the gas detector 70 that is incompatible with the adapter 50 is set.
Even when the inspection gas corresponding to both the main detection component and the sub detection component can be supplied, the model or the like differs between the gas detector 70 and the adapter 50, for example, the main detection component and When the sub-detection component is opposite, it can be determined that the gas detector 70 incompatible with the adapter 50 is set.
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 supplied to the gas detector 70. If supply is possible, 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 an inspection process using the inspection gas corresponding to the main detection component It may be configured to execute only.

(Case 2: When the multi-component gas detector 70 is set in the single-component adapter 50)
In this case, the compatibility check process (# S1) is performed in a form in which it is determined 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.
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 single component gas detector 70 is set in the multi-component adapter 50)
In this case, even if the gas detector side detection component information and the inspection gas supply possibility information partially match, it is determined as non-conforming.

In the suitability confirmation process (# S1), when it is determined that the non-conforming gas detector 70 is set with respect to the adapter 50, that is, the gas detector 70 accommodated in the adapter 50 conforms to the source gas G0. It is determined that the detection component to be detected is not to be detected, or if 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 such a case, the execution of the inspection process (# S4) is prohibited and the user is notified accordingly. Conversely, if 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 compatibility check processing (# S1), for example, it is possible to prevent subsequent inspection processing (# S4) from being executed in a state where the gas detector 70 that is not compatible with the adapter 50 is set. Is done. Therefore, problems such as leakage of the inspection gases G0 and G1 and an erroneous inspection result due to such a combination of the gas detector 70 and the adapter 50 being incompatible are avoided.

[Grouping process]
In the grouping process (# S2) shown in FIG. 4, a plurality of gas detectors 70 accommodated in the four accommodating portions 5 are to be inspected, and for each of the plurality of gas detectors 70 to be inspected, Grouping is performed according to the inspection gas supplied to the gas detector 70. Furthermore, in this grouping process (# S2), various information relating to the inspection gas can be used as an index for grouping. In this embodiment, the composition and concentration of the inspection gas supplied to the gas detector 70 are determined. It is an index for grouping.

Such a grouping process (# S2) is executed, and after the subsequent inspection process (# S4), it is confirmed whether or not there is a next gas detector 70 to be inspected belonging to the same group (# S5). ). When there is a next gas detector 70 to be inspected belonging to the same group, the inspection process (# S4) for the gas detector 70 is preferentially executed. After performing the cleaning process (# S6) to be performed, 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. The process proceeds 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, the change in the composition and concentration of the inspection gas associated with the switching of the inspection object is simplified. It has become.

[Inspection process]
FIG. 5 shows a detailed processing flow of the inspection process (# S4) shown in FIG. As shown in FIG. 5, in this inspection process, for the gas detector 70 to be inspected, an operator confirmation process (# S10), an initial confirmation process (# S12), a blockage alarm confirmation process (# S13), and a suction A flow rate confirmation process (# S14) and a gas alarm confirmation process (# S15) are sequentially executed. In addition, the concentration stabilization process (# S11) is executed before the execution of 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). In addition, when it is determined that there is no abnormality in all of the blockage alarm confirmation process (# S13), the suction flow rate confirmation process (# S14), and the gas alarm confirmation process (# S15), it is normal as a comprehensive judgment. Is displayed (# S16), the calibration process (# S17) is executed, and the inspection process (# S4 in FIG. 4) is terminated. 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, the details of various processes constituting these inspection processes will be described.

(Worker confirmation process)
In the worker confirmation process (# S10), a worker confirmation screen (see FIG. 6B) is displayed on the display 3. In this worker confirmation screen, inspection items that the worker should confirm visually are displayed, and when the worker performs a visual inspection of the gas detector 70 along this display, there is no problem. In this case, the “confirmation completed” button displayed on the same screen is operated. When the “confirmation complete” button is operated, the worker confirmation process (# S10) is terminated, and the worker confirmation screen (see FIG. 6B) on the display 3 is changed to the bump test screen (FIG. 6C). And the execution of the next initial confirmation process (# S12) is started.

(Initial confirmation process)
FIG. 7 shows operating states of various auxiliary machines and gas flow states in the initial confirmation process (# S12).
In the initial confirmation process (# S12), auto zero setting and battery remaining amount confirmation are performed.
In the auto-zero setting, the switching state of the three-way valve V1 is set so that the supply joint 5a to which the gas introduction part 72 of the gas detector 70 is connected is opened to the opening part O1. Then, the gas detector 70 is in a state in which the atmosphere OA is sucked from the gas introduction part 72 via the opening part O1 and the sucked atmosphere OA is supplied to the sensor part 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 receives the fact from the control unit 78 on the gas detector 70 side. 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.
When the auto zero setting and the battery remaining amount confirmation are completed, the fact that the zero setting has been performed and the remaining battery amount are displayed on the bump test screen (see FIG. 6C) displayed on the display 3, The initial confirmation process (# S12) is terminated.

(Blockage alarm confirmation processing)
FIG. 8 shows the operating state and 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 there is an abnormality in the blockage alarm function that outputs a predetermined blockage alarm when the gas introduction part 72 is blocked.
That is, in the blockage alarm confirmation process (# S13), in a state where the supply joint 5a is connected to the gas introduction part 72 of the gas detector 70, the outflow of gas from the supply joint 5a is blocked. The switching state of the three-way valves V1, V3, V4, V5 leading to the 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 blockage alarm output by the blockage alarm function of the gas detector 70 at that time is compared with the control unit 78 on the gas detector 70 side. Confirm by communication.

And when the blockage alarm is output with the interruption of the gas outflow from the supply joint 5a, it is determined that the blockage alarm function of the gas detector 70 is operating normally. On the other hand, when the blockage alarm is not output with the interruption of the gas outflow from the supply joint 5a, it is determined that the blockage alarm function of the gas detector 70 is not operating normally. In addition, for the gas detector 70 having an abnormality in the blockage alarm function, the blockage abnormality in which the suction flow rate becomes substantially zero before the gas suction flow rate has deviated from the appropriate flow rate range. It can be judged that there is a possibility of having it.
Then, the presence / absence of an abnormality in the clogging alarm function in the gas detector 70 is displayed on the bump test screen (see FIG. 6C) displayed on the display 3, and then this clogging alarm confirmation process (# S13) is terminated. .

  Further, when ending the blockage alarm confirmation process (# S13), 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, if it is determined that there is an abnormality in the blockage alarm function, it is abnormal as a comprehensive determination in order to avoid unnecessary execution of subsequent processes including the gas alarm confirmation process (# S15) for the gas detector 70. After displaying the effect (# S18), the inspection process (# S4 in FIG. 4) is terminated, thereby rationalizing the inspection process.

(Suction flow confirmation process)
FIG. 9 shows operating states of various auxiliary machines and gas flow states in the suction flow rate confirmation processing (# S14). In this suction flow rate confirmation process (# S14), it is confirmed whether there is an abnormal suction flow rate in which the gas suction flow rate from the gas introduction part 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 while the supply joint 5a is connected to the gas introduction portion 72 of the gas detector 70. The air supply joint 5a is opened to the atmosphere via the atmosphere release path leading to the portion O2. Then, the gas detector 70 sucks the atmosphere OA from the gas introduction part 72 through the atmosphere release path, so that the gas flow rate measured by the flow meter Mf1 provided in the atmosphere release path is used as the gas detector. 70 is obtained as a gas suction amount of 70, and the presence or absence of a suction flow rate abnormality in which an appropriate gas suction flow rate cannot be secured in the gas detector 70 is grasped.
Then, the presence / absence of abnormality in the suction flow rate of the gas detector 70 is displayed on the bump test screen (see FIG. 6C) displayed on the display 3, and the suction flow rate confirmation processing (# S14) is ended.

  Further, when ending the suction flow rate abnormality confirmation process (# S14), 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 indicated that the determination is abnormal as a comprehensive determination in order to avoid unnecessary execution of subsequent processing including the gas alarm confirmation processing (# S15) for the gas detector 70. After the display (# S18), the inspection process (# S4 in FIG. 4) is terminated, thereby rationalizing the inspection process.

(Concentration stabilization treatment)
FIGS. 8 to 10 show the operating states and gas flow states of various auxiliary machines in the concentration stabilization process (# S11). In this concentration stabilization process (# S11), the dilution gas G1 as the inspection gas whose flow rate and concentration are stable from the beginning of the subsequent gas alarm confirmation process (# S15) is supplied to the gas introduction part 72 of the gas detector 70. In order to supply and obtain an accurate inspection result, it is a process executed at the time of execution of the blockage alarm confirmation process (# S13) or the suction flow rate confirmation process (# S14) before the execution of the alarm confirmation process (# S15), 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 suction flow confirmation process (# S14) is executed. In FIG. 10, until the flow rate and concentration of the dilution gas G1 are stabilized, the alarm confirmation process (# S15) is executed in a standby state (see FIG. 10).

That is, in the concentration stabilization process (# S11), the dilution gas G1 as the inspection gas generated by the dilution process by the dilution process means 6 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 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 pressure reducing stage number. By setting the first stage on the smaller 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. After the pressure is stabilized by the upper pressure regulator R21, the flow is passed through the flow meter Mf2 via the bypass BL and the like, and is supplied to the junction B1. At the same time, the pump P1 is operated to open the flow rate adjustment valve V12 and to set the switching state of the three-way valves V13 and V14, so that the air OA taken from the open portion O3 flows to the filter F3 and the flow meter Mf3. And supply to the junction B1.
Thus, in the junction B1, the raw material gas G0 passed through the gas path 6b provided with the flow meter Mf2 is diluted by the atmosphere OA passed through the atmospheric supply path 6a provided with the flow meter Mf3. A so-called dilution process is performed to generate a dilution gas G1.

Further, the flow rate of the raw material gas G0 supplied to the junction B1 is controlled by adjusting the opening degree of the flow rate adjustment valve V7, while the flow rate of the atmosphere OA supplied to the junction B1 is the opening degree of the flow rate adjustment valve V12. Controlled by adjustment. And by these controls, the flow volume and density | concentration of the dilution gas G1 are adjusted to a desired flow volume and density | concentration.
In such a dilution process, the set flow rate of the source gas G0 that is set according to the dilution ratio of the source gas G0 is set according to the dilution ratio so that the capacity of the gas container C2 can be as small as possible. The set flow rate of the atmospheric OA is smaller.
In this concentration stabilization process (# S11), by setting the switching state of the three-way valves V4 and V5, the dilution gas G1 generated in the junction B1 is opened through the three-way valves V4 and V5. And is exhausted to the outside from the open portion O4. That is, the supply destination of the dilution gas G1 is configured to be able to exhaust the dilution gas G1 by switching from the supply joint 5a on the gas detector 70 side to the external open portion O4.

  Further, in this concentration stabilization process (# S11), the dilution gas G1 is obtained by diluting a relatively small flow rate of the source gas G0 in the atmosphere. Therefore, lock-up and chattering of the pressure regulator R21 are avoided, and the source gas G0 is reliably 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 assumed that it is discharged to the outside. That is, the dilution gas G1 exhausted to the outside through the open portion O4 is diluted by the ambient air taken from the opening 59 of the adapter 50, and the dilution gas G1 can be exhausted to the outside with a high concentration. It has been avoided.

  Further, at the start of the above-described dilution process, that is, at the start of the execution of the concentration stabilization process (# S11), the opening degree of the flow rate adjustment valve V7 is temporarily increased, and the flow rate of the raw material gas G0 is increased. More than the set flow rate according to the dilution ratio of the source gas G0. As a result, the concentration of the dilution gas G1 generated in the merging section B1 rises early and reaches an appropriate concentration, and as a result, the state in a state of waiting for the execution start of the alarm confirmation process (# S15). The execution time of the density stabilization process (# S11) can be made as short as possible.

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

(Gas alarm confirmation process (dilution process))
FIG. 11 shows operating states of various auxiliary machines and gas flow states in the gas alarm confirmation process (# S15) when the dilution process is performed. In this gas alarm confirmation process (# S15), as the inspection gas generated by the dilution process with respect to the gas introduction part 72 of the gas detector 70 via the branch part B2 which is a gas supply part and the supply joint 5a. The dilution gas G1 is supplied, and the presence or absence of abnormality of the gas alarm function in the gas detector 70 is confirmed.
In this gas alarm confirmation process (# S15), since the diluted gas G1 diluted with the atmosphere OA that has not been subjected to the drying process by the dilution process is supplied to the gas detector 70, the sensor unit of the gas detector 70 No. 76 is maintained in the same level as the normal atmospheric OA containing moderate humidity 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 switching state of the three-way valves V1, V4, V5 is set from the state of the concentration stabilization process (# S11) in FIG. The dilution gas G1 supplied to the gas detector 70 is supplied to the gas introduction part 72 of the gas detector 70 via the branch part B2 as the gas supply part and the supply joint 5a, and the dilution gas G1 is supplied to the gas detector 70. Inhale. Then, in the gas detector 70, the dilution gas G1 containing the detection component is introduced from the gas introduction unit 72. At that time, whether the gas alarm function of the gas detector 70 is normally operated and outputs a gas alarm. Whether or not there is an abnormality in the gas alarm function in the gas detector 70 is confirmed by confirming whether or not it is in communication with the control unit 78 on the gas detector 70 side.
Then, the presence or absence of abnormality of the gas alarm function in the gas detector 70 is displayed on the bump test screen (see FIG. 6C) displayed on the display 3, and then this alarm confirmation process (# S15) is ended.

  Further, when the gas detector 70 accommodated in the adapter 50 is for a plurality of components, first, the gas detector 70 for a plurality of components set in the adapter 50 in a state of being operated in the main detection mode. Thus, the gas alarm confirmation process (# S15) is executed using the dilution gas G1 generated by the source gas G0 corresponding to the main detection component that is the detection target in the main detection mode. Then, after the gas alarm confirmation process (# S15) is performed, 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. A gas alarm confirmation process (# S15) is executed using the dilution gas G1 generated by the source gas G0 corresponding to the target sub-detection component.

  Further, in the gas alarm confirmation process (# S15) shown in FIG. 11, the gas detector 70 is supplied with a dilution 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. The gas is supplied to a branch B2 that is a gas supply unit that communicates with the gas introduction unit 72. Then, although the diluted gas G1 that has not been sucked into the gas introduction part 72 of the gas detector 70 exists, the diluted gas G1 is discharged from the open part O4 to the outside via the three-way valve V5. Thus, the gas detector 70 sucks the dilution 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 dilution gas G1 on the system body 1 side. It will operate under the same conditions as normal use.

Further, in ending the gas alarm confirmation process (# S15), for the gas detector 70 having no gas alarm abnormality, the previous blockage alarm confirmation process (# S13) and the suction flow rate confirmation process (# S14). Therefore, the inspection process (# S4 in FIG. 4) is terminated after displaying that it is normal as a comprehensive judgment (# S16). On the other hand, if it is determined that there is a gas alarm abnormality, an abnormality is displayed as a comprehensive determination (# S18), and the inspection process (# S4 in FIG. 4) is terminated.

(Calibration process (undiluted process))
FIG. 13 shows operating states of various auxiliary machines and gas flow states in the calibration process (# S17).
Note that the gas alarm confirmation process (# S15) shown in FIG. 11 described above is performed when a dilution process for diluting the source gas G0 taken out from the gas container C2 with the atmospheric air OA to generate the diluted gas G1 is executed. However, in the calibration process (# S17), instead of the dilution process, the dilution process means 6 is inactivated, and the raw gas G0 taken out from the gas container C2 is used as the inspection gas without being diluted as it is. Run.
In this calibration process (# S17), the source gas G0 taken out from the gas container C2 is supplied as an inspection gas to the gas introduction part 72 of the gas detector 70, and the sensitivity of the gas detector 70 is calibrated. .
In this calibration process (# S17), the raw material gas G0 having a stable concentration is supplied without being diluted to the gas detector 70, and the output signal of the sensor section 76 of the gas detector 70 at that time is the raw material gas. The sensitivity of the sensor unit 76 is accurately calibrated so as to match the concentration of the gas G0.

The details will be described below.
FIG. 13 shows the operating states and gas flow states of various auxiliary machines in the calibration process (# S17) when performing the non-dilution process. In this calibration process (# S17), the raw material gas G0 taken out from the gas container C1 is supplied to the gas introduction part 72 of the gas detector 70 via the branch part B2 which is a gas supply part and the 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 the atmosphere OA from the open 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. Further, the switching state of the three-way valve V11 is set by the pressure-reducing stage number adjusting means 2e, and the pressure-reducing stage number is set to the higher two stages. Thus, after the pressure of 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, the atmosphere on the flow meter Mf3 side through which the atmosphere OA flows in the dilution process described above It is made to flow through the supply path 6a and is supplied to the junction B1. Then, the source gas G0 is supplied to the branching section B2 serving as a gas supply section for supplying the inspection gas to the gas introduction section 72 of the gas detector 70 and the supply joint 5a.
Thus, when the raw material gas G0 is used as it is, even when the required flow rate of the raw material gas G0 is relatively large, the raw material gas G0 is passed through the relatively large flow amount of the atmosphere OA. The air supply path 6a corresponding to a relatively large flow rate is allowed to flow, and for example, the flow rate of the raw material gas G0 can be measured by the flow meter Mf3 corresponding to the relatively large flow rate. On the other hand, the raw material gas supply path on the flow meter Mf2 side through which the comparatively small flow rate of the raw material gas G0 flows is configured as a relatively simple and small one corresponding only to the small flow rate. For example, as the flow meter Mf2 The one corresponding to a relatively small flow rate is used.

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

  The above is a detailed processing flow of the inspection process (# S4) in the inspection processing method shown in FIG. 4, and after the execution of the inspection process (# S4), the gas detector 70 to be inspected next belonging to the same group. Is present (# S5), the gas detector 70 to be inspected in the same group is changed, and the inspection process (# S4) is executed on the changed gas detector 70. At this time, when the dilution gas G1 generated in the dilution process is used as the inspection gas, the three-way valves V4 and V5 are temporarily stored in the generated dilution gas G1 when the inspection object is changed in the same group. The dilution process is continued in such a manner that the gas is supplied to the open portion O4 and exhausted. As a result, the concentration stabilization process when changing the inspection target is omitted, and the time required for the change is shortened.

  When shifting to an inspection process for the next gas detector 70 belonging to the same group, a predetermined first cleaning process (# S8) is executed, and an inspection process for the gas detector 70 in the same group is performed. Is completed, a predetermined second cleaning process (# S9) is executed.

[Cleaning process]
In the first cleaning process (# S8) executed when the inspection process of the next gas detector 70 to be inspected belonging to the same group is performed, the atmosphere introduction OA is introduced into the gas introduction part 72 of the gas detector 70 and The gas detector 70 is cleaned (hereinafter referred to as “gas detector cleaning”).
On the other hand, in the second cleaning process (# S6) executed when all the inspection processes of the gas detectors 70 in the same group are completed, in addition to the gas detector cleaning, the dilution gas G1 or the raw material gas G0 as the raw material thereof is used. The atmospheric OA is passed through the gas path through which the gas flows, and the gas path is cleaned (hereinafter referred to as “gas path cleaning”).
FIG. 12 shows the operating states and gas flow states of various auxiliary machines when the gas path cleaning and the gas detector cleaning are performed simultaneously.

(Gas path cleaning)
Specifically, in the gas path cleaning, the raw gas G0 from the gas container C2 is closed 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 in which the source gas G0 was flowing in the atmosphere OA taken in from the open portion O3 by the gas alarm confirmation process (# S15) and the like was stopped and the switching state of the three-way valves V8, V14 was set The gas flows through the gas path 6b on the Mf2 side. As a result, the source gas G0 remaining in the gas path 6b is replaced with the atmosphere OA, and the gas path 6b is cleaned.

Further, the atmospheric OA after flowing through the gas path 6b is an inspection gas path from the junction B1 through which the dilution gas G1 and the raw material gas G0 have flowed in the gas alarm confirmation process (# S15) or the like to the branch B2. Flow through 6c. Thus, the dilution 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 performing such gas path cleaning, erroneous inspection due to the dilution gas G1 and the raw material gas G0 remaining in the gas path is avoided in the inspection process for the next gas detector 70 to be inspected.
In this gas path cleaning, the atmosphere OA supplied to the branch part B2 after flowing through the gas path 6b and the inspection gas path 6c is set via the open part O4 by setting the switching state of the three-way valves V1, V5. Exhausted outside.

  In the gas path cleaning performed after the calibration process (# S17) in the case of performing the non-dilution process shown in FIG. 13, the atmosphere OA is passed through the path through which the source gas G0 has flowed in the calibration process (# S17). It is desirable to make it flow. That is, by setting the switching state of the three-way valves V14, V8, and V13, the atmosphere OA taken from the open portion O3 is caused to flow through the atmosphere supply path 6a. As a result, the source gas G0 remaining in the path through which the source gas G0 flows in the calibration process (# S17) when performing the non-dilution process is replaced with the atmosphere OA, and the path is cleaned. In this cleaning process, the atmosphere OA taken from the open portion O3 may be supplied from the three-way valve V13 to the gas path 6b side, and the atmosphere 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 performed at the same time is completed, the switching state of the three-way valve V1 is set, and the atmospheric OA in the branching section 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 part B2 to the three-way valve V1 are replaced with the atmosphere OA, and the path is cleaned.

(Gas detector cleaning)
On the other hand, in the gas detector cleaning, the gas supply joint 5a to which the gas introduction part 72 of the gas detector 70 is connected is opened to the open part O1 in the same manner as in the initial confirmation process (# S12) described above, so that the gas The gas introduction section 72 of the detector 70 is introduced with the atmosphere OA taken from the open section O1, that is, fresh atmosphere OA different from that flowing through the gas path. Then, the atmosphere OA is introduced into the gas detector 70 via the gas introduction part 72 and flows through the sensor part 76. As a result, the dilution gas G1 and the source gas G0 remaining in the gas introduction part 72 and the sensor part 76 on the gas detector 70 side are replaced with the atmospheric air 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 detected component concentration in the introduced gas has become substantially zero.

By performing such gas detector cleaning, erroneous detection due to the inspection gases G0 and G1 remaining in the gas introduction section 72 and the like is avoided when using the gas detector 70 immediately after the inspection process. The
In this gas detector cleaning, the exhaust EA discharged from the exhaust portion 77 of the gas detector 70 is taken together with the ambient air from the opening 59, and is discharged to the outside from the open portion O4 through the exhaust joint 5b. The This prevents the exhaust EA from being released from the front surface on the housing portion 5 side. Further, the exhaust EA sucked from the opening 59 is discharged together with the atmosphere OA after flowing through the gas path 6b and the inspection gas path 6c by gas path cleaning. This simplifies the exhaust path for gas detector cleaning and gas path cleaning.
Note that the exhaust EA and the atmosphere OA may be separately discharged to the outside.

  In this embodiment, the gas path cleaning and the gas detector cleaning are performed in different atmospheres OA. However, for example, each of the cleanings is performed by introducing the air flowing through the gas path into the gas detector 70, for example. May be performed in the same atmosphere.

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

2b Gas detector information acquisition means 2c Adapter information acquisition means 2d Inspection processing means 5 Storage unit 50 Adapter 70 Gas detector 72 Gas introduction unit 100 Inspection processing system G1, G0 Inspection gas

Claims (5)

A storage unit that stores a gas detector that outputs a predetermined gas alarm according to the state of the detection component in the introduced gas introduced from the gas introduction unit,
An inspection processing system for a gas detector, comprising inspection processing means for supplying an inspection gas to a gas introduction portion of the gas detector housed in the housing portion and performing an inspection process for inspecting the state of the gas detector. There,
Gas detector information acquisition means for acquiring gas detector side detection component information related to the detection component from the gas detector stored in the storage unit,
The inspection processing means can supply the gas detector side detection component information acquired from the gas detector and the gas detector before executing the inspection process for the gas detector accommodated in the accommodating portion. The compatibility check process for confirming the compatibility with the check gas supply availability information on the correct check gas is executed, and when the nonconformity is confirmed in the suitability check process, the check process for the gas detector is executed. Gas detector inspection processing system that prohibits. For multiple components that operate in the main detection mode that uses the main detection component as a detection target, and that operate in the sub detection mode that uses a sub detection component that is different from the main detection component by the mode switching operation in the main detection mode. A multi-component housing portion capable of housing a gas detector as the gas detector,
The inspection processing system for a gas detector according to claim 1, wherein a plurality of types of inspection gas can be selectively supplied to the multi-component gas detector accommodated in the multi-component accommodating portion. .   When the multi-component gas detector is accommodated in the accommodating portion, the inspection processing means supplies the multi-component gas detector with an inspection gas corresponding to a main detection component of the multi-component gas detector. The compatibility checking process is executed in a form for determining whether or not supply is possible, and if it is determined that supply is not possible, execution of the inspection process on the multi-component gas detector is prohibited. 2. The gas detector inspection processing system according to 2.   When the single-component gas detector for which the inspection processing means detects only a specific detection component is stored in the multi-component storage portion, the inspection processing for the single-component gas detector is performed. The inspection processing system for a gas detector according to claim 2 or 3, wherein execution is prohibited. An adapter that enables the specific gas detector to be accommodated in the accommodating portion is detachably attached to the accommodating portion,
Comprising adapter information acquisition means for acquiring adapter-side detection component information relating to the detection component of the specific gas detector from an adapter attached to the housing;
The said inspection process means produces | generates the said information for gas supply for inspection based on the said adapter side detection component information acquired from the said adapter in which the said gas detector was accommodated in any one of Claims 1-4. Inspection system for the gas detector as described.

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