JP7001323B2 - X-ray inspection equipment - Google Patents

Description

The present invention relates to an X-ray inspection apparatus that performs an inspection by irradiating a subject fluidly transported inside a pipeline with X-rays in an inspection space having a shield structure, and particularly when a high-temperature subject is fluidly transported. It relates to an X-ray inspection apparatus provided with a cooling apparatus capable of effectively cooling the inside of an inspection space.

The following Patent Document 1 discloses an invention of an X-ray foreign matter detection device that detects a foreign matter by irradiating a subject fluidly conveyed in a pipeline with X-rays. According to the present invention, the pipeline 10 has a shape in which the cross-sectional shape of the pipeline 10 at the detection position P is crushed into a flat shape that allows the subject to flow. Therefore, the transmission distance of the X-rays irradiated toward the subject fluidly transported in the pipeline can be made uniform and short, so that foreign matter mixed in the subject can be reliably detected. ..

The following Patent Document 2 discloses an invention of an X-ray foreign matter detection device that detects a foreign matter by irradiating a subject fluidly conveyed in an inspection pipe with X-rays. When the unit 7 provided with the inspection pipe 6 is moved from the used position to the non-used position with respect to the housing 4 of the X-ray irradiation device 1, the operating plate 10 of the unit swings the operating member 9 and operates. The plate 35 opens the forced dissociation switch 8 to shut off the X-ray actuation circuit. Further, the actuating pin 12 of the unit 7 rotates the fixing member 11 to engage with the engaging portion of the operating member 9, and locks the operating state of the switch 8 by the operating member 9. While the unit is removed from the housing and the inspection pipe 6 is cleaned, the X-rays are locked so that they cannot be irradiated. Therefore, the inspection pipe inside the device can be detached from the external piping without the risk of X-ray leakage. Can be done.

Japanese Unexamined Patent Publication No. 2006-01398 Japanese Unexamined Patent Publication No. 2006-010637

According to the X-ray foreign matter detection device described in Patent Documents 1 and 2, the subject fluidly transported in the pipeline is inspected by irradiating it with X-rays in a shielded inspection space. In recent years, with the diversification of subjects, cases of inspecting high-temperature fluids have been seen in this type of X-ray foreign matter detection device, but in such cases, they pass through the pipeline. The inventor of the present application considered that it may be necessary to cool the inside of the examination space because the temperature inside the examination space rises due to the heat of the subject.

Further, in particular, when an interlock mechanism for preventing X-ray leakage is provided in the inspection space, such as the X-ray foreign matter detection device described in Patent Document 2, a component generally used for the interlock mechanism. Since the permissible temperature is set lower than other parts around the interlock mechanism from the viewpoint of reliability and safety, the interlock mechanism may need to be cooled with particular emphasis. The inventor of the present application thought.

However, in the conventional X-ray inspection device that irradiates the subject fluidly transported in the pipeline with X-rays to perform the inspection, the inside of the inspection space is effectively cooled, and the identification provided in the inspection space is specified. No device was found equipped with a cooling device that could effectively cool the heat-generating object.

The present invention has been made in view of various problems found by the inventor of the present application in the conventional technique described above, and X is X-rayed in a shielded inspection space with respect to a subject fluidly transported in a pipeline. In an X-ray inspection apparatus that irradiates a line to perform an inspection, the purpose is to effectively cool the inspection space and effectively cool specific parts provided in the inspection space.

The X-ray inspection apparatus according to claim 1 is
An X-ray inspection device that irradiates a subject fluidly transported in a pipeline with X-rays and inspects the subject based on the amount of X-rays transmitted through the subject.
One end is connected to a source of cooling gas and the other end is closed, having a plurality of holes formed at intervals in the longitudinal direction, and a pipe portion arranged in parallel with the pipeline.
An adjusting member selectively arranged from the hole to the inside of the pipe portion,
It is characterized by being provided with a cooling device having the above.

The X-ray inspection apparatus according to claim 2 is the X-ray inspection apparatus according to claim 1.
At least a part of the hole is characterized in that it is formed at a position different from the other part in the circumferential direction of the pipe portion.

The X-ray inspection apparatus according to claim 1 or 2 according to claim 3 is the X-ray inspection apparatus.
The hole is characterized by being circular.

The X-ray inspection apparatus according to claim 4 is the X-ray inspection apparatus according to claim 1 or 2.
The hole is characterized by being a screw hole.

According to the X-ray inspection apparatus according to claim 1, a fluid subject is supplied into the pipeline and transported by flow, and the pipeline is irradiated with X-rays in the inspection space of the apparatus to irradiate the subject. The subject can be inspected based on the amount of transmitted X-rays transmitted.

In such an X-ray inspection device, if the subject passing through the pipeline has a high temperature or if there are devices that generate a high temperature in the inspection space, the inspection space becomes a high temperature atmosphere at a level requiring cooling. In some cases. In such a case, the cooling gas is supplied from the supply source to the pipe portion of the cooling device, and the cooling gas is injected into the inspection space from a plurality of holes formed in the pipe portion to lower the temperature in the inspection space. be able to.

In this way, when the cooling gas is supplied from one end of the pipe portion in which a plurality of holes are formed at intervals in the longitudinal direction toward the other end portion that is closed, the inner diameter of the pipe portion, the inner diameter of the hole, etc. Depending on various conditions, the air volume of the cooling gas injected from each hole may not be constant, and it may be difficult to uniformly and efficiently cool the inside of the inspection space. In the X-ray inspection apparatus according to claim 1, even in such a case, a hole deemed necessary from the situation is selected from the plurality of holes formed in the pipe portion, and the pipe portion is selected from the holes. The adjusting member is arranged inside the. Since the flow path of the cooling gas in the pipe portion is partially blocked by the adjusting member in this way, the gas is sprayed from the hole on the upstream side of the hole provided with the adjusting member, that is, the hole on the one end side of the pipe portion. As a result, the air volume of the cooling gas injected from each of the plurality of holes is made uniform as compared with the case where the adjusting member is not provided. Therefore, if the holes to be provided with the adjusting member are appropriately selected, the air volume of the cooling gas blown into the inspection space from the plurality of holes without the adjusting member can be made uniform as much as possible, the cooling of the pipeline can be made more efficient, and the inspection space can be obtained. A quick cooling effect can be obtained for the whole of.

In particular, since the pipe portion of the cooling device is arranged parallel to the pipeline, if a plurality of holes in the pipe portion are formed at positions facing the pipeline, the cooling gas that is uniformly blown out from each hole of the pipeline can be discharged. It can be sprayed directly on the whole. Further, if the plurality of holes in the pipe portion are formed so as to face the upper side of the inspection space, the cooling gas can be supplied above the inspection space where heat tends to be accumulated. Therefore, the inside of the inspection space where the pipeline is arranged can be efficiently cooled.

In addition, when equipment that becomes hot during inspection is provided at a specific position in the inspection space, the position that is considered to contribute most to the cooling of the equipment is among the plurality of holes provided in the pipe portion. The adjusting member is arranged in the hole on the downstream side of the hole, that is, the hole on the other end side of the pipe portion. As a result, the air volume of the cooling gas injected from the hole most effective for cooling the device is increased, so that the device can be cooled particularly effectively.

According to the X-ray inspection apparatus according to claim 2, one of the holes in the pipe portion is provided in the inspection space when a component to be cooled is present at a position other than the position where the pipeline is provided. The portion can be formed at a specific position in the circumferential direction suitable for blowing cooling gas onto the component. With such a hole arrangement, the cooling gas from some holes can be blown directly onto the component, and the cooling gas from other holes can be blown out in a direction suitable for cooling the pipeline. As a whole, the inside of the inspection space can be effectively cooled.

According to the X-ray inspection apparatus according to claim 3, since the hole of the pipe portion is circular and a cylindrical pin or the like can be used as the adjusting member, it is easy to insert or remove the adjusting member into the hole. Is.

According to the X-ray inspection apparatus according to claim 4, since the hole in the pipe portion is a screw hole and a screw can be used as the adjusting member, the degree of insertion of the adjusting member into the hole is adjusted. The air volume of the cooling gas blown out from the hole can be set to a desired state by adjusting the degree to which the adjusting member closes the inside of the pipe portion.

It is a front view which shows the state which opened the front cover of the X-ray inspection apparatus which concerns on embodiment of this invention. It is a main part perspective view which shows the state which opened the front cover of the X-ray inspection apparatus which concerns on embodiment of this invention. It is a schematic cross-sectional view and the plan view which show the basic structure and the working principle of the cooling apparatus in embodiment of this invention. It is a schematic cross-sectional view and the plan view which show the basic structure and the working principle of the cooling apparatus in embodiment of this invention. It is a figure which shows the 1st structural example of the cooling apparatus in embodiment of this invention, the sectional drawing (a) is a plan view, and the sectional drawing (b) is the sectional view in the aa cutting line of the sectional drawing (a). The division diagram (c) is a cross-sectional view taken along the line cc of the division diagram (b). It is a figure which shows the 2nd structural example of the cooling apparatus in embodiment of this invention, the sectional drawing (a) is a plan view, and the sectional drawing (b) is the sectional view in the aa cutting line of the sectional drawing (a). The division diagram (c) is a cross-sectional view taken along the line cc of the division diagram (b). It is a figure which shows the 3rd structural example of the cooling apparatus in embodiment of this invention, the sectional drawing (a) is a plan view, and the sectional drawing (b) is the sectional view in the aa cutting line of the sectional drawing (a). The division diagram (c) is a cross-sectional view taken along the line cc of the division diagram (b). It is a schematic cross-sectional view and the plan view which shows the air volume from each hole when the adjusting member is not used in the cooling apparatus in embodiment of this invention.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
FIG. 1 is an overall front view showing an embodiment of the X-ray inspection apparatus 1 according to the present invention, and FIG. 2 is a front perspective view showing a state in which the front cover of the housing is opened in the X-ray inspection apparatus 1. .. First, the basic structure and the like of the X-ray inspection device 1 will be described with reference to FIGS. 1 and 2, and then the structure and principle of the cooling device of the X-ray inspection device 1 will be described with reference to FIGS. 2 and 3 and the like. 1 and 2, and also with reference to FIGS. 5 to 7, a more specific structure and a more specific operation and effect of the cooling device of the X-ray inspection device 1 will be described.

The X-ray inspection device 1 of this embodiment is provided in a part of the production line, and pipes various foods such as stripped shellfish such as lajonkairia lajon, fish paste, retort pouch food ingredients, and soup containing ingredients as subjects. It is a device that continuously fluidly transports in a line and detects foreign substances such as metal, glass, shells, and bones mixed in these subjects.

The subjects exemplified above, that is, stripped shellfish such as asari, ground fish, and ingredients for retort-packed foods, are transported in a pipeline together with a transport fluid such as water and air, whereas they contain ingredients. Since the product itself is a mixture of a fluid and a solid and has fluidity in itself, soup and the like are flow-transported in the pipeline as they are.

As shown in FIG. 1, the X-ray inspection apparatus 1 of the present embodiment has a box-shaped housing 2 supported on an installation surface by legs 3. An X-ray irradiation unit (not shown) is provided inside the upper part of the housing 2 so that X-rays can be irradiated downward. Inside the lower part of the housing 2, an inspection space S for transporting an object to be irradiated with X-rays from an X-ray irradiation unit is provided. The front surface of the lower portion of the housing 2 is an opening 4 that opens the inspection space S, and the opening 4 is covered by the front cover 5. As shown in FIG. 2, the front cover 5 can swing around the lower shaft 6, and in FIGS. 1 and 2, the front cover 5 swings to the lower front open position and the opening 4 opens. It shows the state of being done.

As shown in FIGS. 1 and 2, a pipeline 10 which is a route for fluidly transporting a subject in a predetermined transport direction is arranged in the inspection space S. The pipeline 10 is a tube having a circular cross section, but the central portion irradiated with X-rays is processed into a flat shape, and this central portion is used as the inspection position of the subject. Support plate materials 11 for shielding X-rays are attached to both ends of the pipeline 10, and the pipeline 10 and the two support plate materials 11 and 11 form a detachable pipe unit in the housing 2. There is. If the front cover 5 is tilted toward you to open the inspection space S, and the pipeline 10 is brought into the inspection space S and fixed to the housing 2, a predetermined center in the inspection space S in the depth direction is determined. The pipeline 10 can be positioned at the position. In FIG. 2, a gap can be seen between the support plate 11 on the left side and the housing 2, but this is because some of the structures are omitted in order to make the internal structure easier to see, and in reality, the pipe is used. Shielding plate materials are fixedly provided on both side surfaces (left and right side surfaces) of the housing 2 in the longitudinal direction of the line 10, and if the front cover 5 is closed, the housing 2 is combined with the shielding effect of the support plate material 11. The inspection space S inside is shielded from the outside world.

As shown in FIGS. 1 and 2, above the inspection space S, the first interlock device 12a and the first interlock device 12a are located at two positions close to the upper edges of the two support plate members 11 that support the pipeline 10. 2 Interlock devices 12b (collectively referred to as interlock devices 12) are provided respectively. These two interlock devices 12 are provided with a switch for turning on / off the X-ray irradiation unit, and when the pipeline 10 is not normally attached to a predetermined position in the housing 2, the X-ray irradiation unit is turned on / off. It is a safety device for disabling X-ray irradiation by turning off the switch. The provision of the two interlock devices 12 is a request for safety standards and the like, and does not limit the technical scope of this embodiment. Each part of the interlock device 12 is attached to the housing 2 and the support plate material 11, respectively. If the above-mentioned pipe unit is attached to a predetermined position, the interlock device 12 is turned on and functions, and X-rays are emitted. Make the irradiation unit operable. If the pipe unit is removed from the predetermined position, each part of the interlock device attached to the housing 2 and the support plate 11 is separated from each other, the interlock device 12 is turned off, and the function is stopped. Becomes inoperable.

Although not shown, the X-ray inspection device 1 of the present embodiment also has a third interlock device interlocked with the front cover 5, and the pipe unit is attached to the proper position to be the first and second. Even if the switch of the interlock device 12 is ON, the X-ray irradiation unit does not operate unless the front cover 5 is closed.

Although not shown, a detection unit is provided in the housing 2 below the inspection space S at a position below the inspection position of the pipeline 10. The detection unit is a sensor that detects X-rays that have passed through the subject that is flow-conveyed in the pipeline 10 and passes through the inspection position, and a control unit (not shown) transmits X-rays obtained from the detection results of the detection unit. Test the subject based on the amount. In this embodiment, it is inspected whether or not the fluid subject contains a foreign substance.

As shown in FIGS. 1 and 2, the X-ray inspection device 1 of the present embodiment includes a cooling device 15 for cooling the inside of the inspection space S. The cooling device 15 has a first pipe portion 16a and a second pipe portion 16b (collectively referred to as a pipe portion 16), which are two independent pipes.

First, the reason why the cooling device 15 is provided in the X-ray inspection device 1 of the present embodiment will be described.
In the X-ray inspection apparatus 1 for inspecting while transporting a fluid subject by the pipeline 10, in recent years, with the diversification of subjects, cases of inspecting a high-temperature fluid have been seen. In that case, it is conceivable that the heat of the fluid passing through the pipeline 10 raises the temperature in the shielded inspection space S, and it may be necessary to cool the inside of the inspection space S. Examples of hot fluids are as high as 95 degrees. Further, after the inspection, steam may be passed through the pipeline 10 for cleaning, and in that case, the temperature may exceed 150 degrees.

Further, when the interlock device 12 is provided in the inspection space S as in the X-ray inspection device 1 of the present embodiment, the parts generally used for the interlock mechanism are concerned from the viewpoint of reliability and safety. Since the permissible temperature is set lower than that of other parts around the interlock mechanism, it becomes necessary to intensively cool the interlock device 12. The interlock device 12 is an example, and it is desirable that the devices provided in the inspection space S for generating heat are not limited to the interlock device 12 and are cooled.

Therefore, the inventor of the present application provided the X-ray inspection device 1 of the present embodiment described above with a cooling device 15 having a first pipe portion 16a and a second pipe portion 16b. Before explaining the cooling device 15 in detail, the basic structure and the working principle of the cooling device 15 will be described with reference to FIGS. 3 and 4 which are schematic diagrams, and FIG. 8 which is a comparative diagram.

As shown in FIG. 8, in this cooling device 15, one end is connected to a cooling gas supply source and the other end is closed, and the cooling device 15 is a pipe having a plurality of holes 17 formed at intervals in the longitudinal direction. The main body is the part 16. In this configuration, when cooling air is supplied from one end, the air volume of the cooling gas injected from each hole 17 is not constant depending on various conditions such as the inner diameter of the pipe portion 16 and the inner diameter of the hole 17, and FIG. 8 shows. As shown by the arrow, the inventor of the present application has found that the air volume of the cooling gas blown out from the holes 17 gradually increases from the upstream to the downstream, and the air volume for each hole 17 may not be constant. Therefore, even if the cooling device 15 using only the pipe portion 16 having such a structure is provided in the inspection space S of the X-ray inspection device 1 of the embodiment, it is difficult to always uniformly and efficiently cool the inside of the inspection space S. It is believed that there is.

Therefore, in the cooling device 15 of the embodiment, the hole 17 for which the air volume is to be increased is selected from the plurality of holes 17 formed in the pipe portion 16, and the hole 17 adjacent to the hole 17 toward the downstream side is selected. It was decided to insert an adjusting member into the pipe portion 16 and place it inside the pipe portion 16 to partially close the inside of the pipe portion 16.

As shown in FIG. 3, when the adjusting member 18 is arranged in the second hole 17 counting from one end (right side in the figure) on the supply side of the cooling gas, this hole is as can be seen from the comparison with FIG. The air volume from the hole 17 adjacent to the hole 17 on the upstream side of 17 increases. The air volume from the hole 17 adjacent to the hole 17 on the downstream side of the hole 17 in which the adjusting member 18 is arranged is slightly smaller than that in the case where the adjusting member 18 is not provided, but the air volume from the other holes 17 on the downstream side is shown in FIG. There was no significant change in comparison, and as a whole, the air volume from each hole 17 in FIG. 3 was averaged more than in the state shown in FIG.

As shown in FIG. 4, when the adjusting member 18 is arranged in the second and fourth holes 17 from one end on the cooling gas supply side, these holes can be seen from the comparison with FIG. The air volume from the two holes 17 one adjacent to the upstream side of 17 increases respectively. The air volume from the most downstream holes 17 is not significantly different from that in FIG. 8 without the adjusting member 18, and as a whole, the air volume from each hole 17 in FIG. 4 is averager than the state shown in FIG. It has become more uniform than the state shown in FIG.

When the adjusting member 18 is attached in this way, the air volume of the cooling gas injected from the adjacent hole 17 on the upstream side of the hole 17 in which the adjusting member 18 is provided, that is, the adjacent hole 17 on the one end side of the pipe portion 16 is increased. The air volume of the cooling gas that is increased and injected from each of the plurality of holes 17 is made more uniform than before the adjusting member 18 is provided. Therefore, in the X-ray inspection device 1 of the embodiment, if the holes 17 in which the adjusting member 18 is provided are appropriately selected, the air volume from the specific holes 17 can be increased to particularly cool the interlock device 12, and a plurality of holes 17 can be provided. The air volume of the cooling gas blown out from the hole 17 into the inspection space S is made uniform as much as possible, the cooling of the pipeline 10 becomes efficient, and a rapid cooling effect can be obtained for the entire inspection space S.

Next, returning to the description of the X-ray inspection device 1 of the present embodiment shown in FIGS. 1 and 2, a more specific structure and a more specific operation and effect of the cooling device 15 based on the above-described principle will be described in FIG. This description will be given with reference to FIG. 7.

As shown in FIGS. 1 and 2, the cooling device 15 has a first pipe portion 16a and a second pipe portion 16b, which are two independent pipes. The first pipe portion 16a and the second pipe portion 16b are arranged above the inspection space S on the back side when viewed from the front rather than directly above the pipeline 10. The height in the inspection space S is almost the same as that of the interlock device 12. The first pipe portion 16a and the second pipe portion 16b have the same length, are arranged coaxially, and are parallel to the pipeline 10. One end of both the first pipe portion 16a and the second pipe portion 16b is connected to a cooling gas supply source (not shown), and the other end is closed. The ends face each other with a gap.

In the cooling device 15 of the present embodiment, assuming that the pipe portion 16 is composed of one long pipe, when the device is assembled or the like, it is brought into the inspection space S and both ends thereof are fixed to the housing 2. It is necessary to perform the work to be done, but such work is complicated and requires a considerable amount of labor and time. However, in the embodiment, since the pipe portion 16 is composed of the independent first pipe portion 16a and the second pipe portion 16b, each short pipe portion 16a, 16b is brought into the inspection space S one by one at the time of assembly. Only one end thereof needs to be fixed to the housing 2, and the work is easier than in the case of one long pipe portion.

As the cooling gas, compressed air of a compressor easily available at a factory or the like can be used. That is, the cooling gas does not necessarily mean a specially low-temperature gas prepared for cooling, but may be a gas having a temperature that can be used for cooling in relation to the temperature of the object to be cooled.

As shown in FIG. 5, a plurality of round holes 17a are formed on the peripheral surface of the pipe portion 16 at intervals in the longitudinal direction. The plurality of round holes 17a are arranged at predetermined intervals in the longitudinal direction (axial direction) of the pipe portion 16, but the positions in the circumferential direction are not the same. That is, the two round holes 17a on the one end side (right side in FIG. 5) and the other round holes 17a are separated by 90 degrees (or 270 degrees) in the circumferential direction. To exemplify the dimensions of the first and second pipe portions 16a and 16b, the pipe portion 16 has an inner diameter of 9.8 mm, an outer diameter of 13.8 mm, and a wall thickness of 2 mm, and the round hole 17a has a diameter of 4 mm. ..

As shown in FIG. 5, a pin 18a as an adjusting member 18 is provided in a round hole 17a adjacent to the two round holes 17a on the one end side and one adjacent to the downstream side. The pin 18a has a solid cylindrical shape that can be inserted into the round hole 17a without a gap, and its length is slightly smaller than the outer diameter of the pipe portion 16. When the pin 18a is inserted into the round hole 17a and abutted against the inner peripheral surface, the upper end portion Is substantially the same as the outer peripheral surface of the pipe portion 16. As described above with reference to FIG. 3, the air volume from the two round holes 17a on the one end side is increased as compared with the case where the pin 18a is not provided.

As shown in FIGS. 1 and 2, in the X-ray inspection apparatus 1, the first pipe portion 16a and the second pipe portion 16b are on one end side (the left side surface side and the right side surface side of the housing 2). Each of the two round holes 17a of the above is directed to the interlock device 12 on the front side. Therefore, the cooling gas having an increased amount of air blown out from the two round holes 17a on the one end side can be blown onto the interlock device 12 and efficiently cooled.

Although not visible in FIGS. 1 and 2, as shown in FIG. 5, the round holes 17a other than the two round holes 17a on the one end side face directly upward, and the air volume thereof is the case where no pin is provided. Compared to, it is more uniform. When the air in the inspection space S is warmed by flowing a high-temperature fluid through the pipeline 10, the warm air tends to collect in the upper position in the inspection space S, so that it is upward from many round holes 17a of the pipe portion 16. By blowing out the cooling gas to, the air in the inspection space S is agitated, and the inside of the inspection space S can be efficiently cooled.

If the dimensional relationship between the round pin 18a and the round hole 17a is removable, the position of the pin 18a is changed according to the model of the X-ray inspection device 1 in which the calorific value and position of the parts to be cooled are different. be able to. However, the pin 18a and the round hole 17a may have a structure in which the pin 18a and the round hole 17a are fixed by welding after press fitting or insertion in order to prevent them from falling off.

FIG. 6 is a diagram showing a second structural example of the cooling device 15 in the embodiment. In this structural example, the hole of the pipe portion 16 is a screw hole 17b, and the adjusting member is a screw 18b. According to this structural example, by adjusting the degree of insertion of the screw 18b into the screw hole 17b, the degree of the screw 18b closing the inside of the pipe portion 16 can be adjusted, and the cooling gas blown out from the screw hole 17b can be adjusted. The air volume can be set to the desired state.

FIG. 7 is a diagram showing a third structural example of the cooling device 15 in the embodiment. In this structural example, the hole of the pipe portion 16 is a slit 17c, and the adjusting member is a plate material 18c. According to this structural example, it is easy to process the slit 18c on the pipe portion 16, and it is also easy to prepare a plate material 18c suitable for the dimensions of the slit 17c.

In the embodiment described above, the pipe portion 16 of the cooling device 15 is a round pipe, but the shape is not particularly limited as long as it is a member having a hollow longitudinal shape.

1 ... X-ray inspection device 10 ... Pipeline 12 ... Interlock device 12a ... First interlock device 12b ... Second interlock device 15 ... Cooling device 16 ... Pipe 16a ... First pipe 16b ... Second pipe Part 17 ... Hole 17a ... Round hole as a hole 17b ... Screw hole as a hole 17c ... Slit as a hole 18 ... Adjusting member 18a ... Pin as an adjusting member 18b ... Screw as an adjusting member 18c ... Plate material as an adjusting member S … Inspection space

Claims (4)

An X-ray inspection device that irradiates a subject fluidly transported in a pipeline with X-rays and inspects the subject based on the amount of X-rays transmitted through the subject.
One end is connected to a source of cooling gas and the other end is closed, having a plurality of holes formed at intervals in the longitudinal direction, and a pipe portion arranged in parallel with the pipeline.
An adjusting member selectively arranged from the hole to the inside of the pipe portion,
An X-ray inspection device comprising a cooling device having the above. The X-ray inspection apparatus according to claim 1, wherein at least a part of the hole is formed at a position different from the other part in the circumferential direction of the pipe portion. The X-ray inspection apparatus according to claim 1 or 2, wherein the hole is circular. The X-ray inspection apparatus according to claim 1 or 2, wherein the hole is a screw hole.

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