JP6858474B1 - Sensor member mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount a sensor member on a structure by preventing gas or the like inside the structure from leaking when mounting the sensor member by inserting the sensor member into the structure. SOLUTION: An insertion hole 14 into which a sensor member 20 is inserted is provided in an upper part of a structure 10, and a liquid x for preventing leakage is housed between the inner tube 34a and the outer tube 34b above the insertion hole. The accommodating portion 34 is provided, and the sensor member is provided downward from the lower surface of the lid 40 that closes the top of the liquid accommodating portion. A sealing cylinder 44 is provided so as to be inserted into the liquid storage portion between the pipe and the outer pipe. [Selection diagram] Fig. 1

Description

The present invention relates to a sensor member mounting structure in which a sensor member for detecting a temperature or the like inside a structure such as an industrial furnace is mounted so as to be inserted into the inside of the structure. In particular, when the sensor member is mounted so as to be inserted inside the structure, the sensor member can be used for a long period of time by preventing gas or the like inside the structure from leaking from the mounting portion of the sensor member. The sensor member can be easily mounted, and when the sensor member inserted inside the structure is replaced, the sensor member is prevented from leaking gas or the like inside the structure from the mounting portion of the sensor member. Is taken out from the inside of the structure, and the sensor member can be easily replaced.

Conventionally, it has been practiced to detect the temperature inside a structure such as an industrial furnace.

Then, in detecting the temperature inside the furnace inside the structure in this way, conventionally, as shown in Patent Documents 1 to 3, a sensor member is placed inside the structure on the wall of the structure. While providing an insertion hole for insertion, the sensor member is provided so as to protrude from the inside of the mounting member, and the flange provided on this mounting member is mounted around the insertion hole provided in the structure via a packing, an O-ring, or the like. The circumference of the insertion hole is closed, the sensor member protruding from the mounting member is inserted into the structure through the insertion hole, and the sensor member inserted into the structure in this way causes the temperature inside the furnace inside the structure. Etc. were detected.

However, when the sensor member is attached to the insertion hole provided in the structure via the flange in this way, the bolt, nut, or packing is removed or attached when the sensor member breaks down and needs to be replaced. However, there is a problem that the atmosphere inside the furnace is released from the insertion hole which is open during that time, the temperature and pressure inside the furnace are lowered, and the concentration of the atmosphere is changed.

Furthermore, when dangerous gas such as hydrogen is used in the atmosphere inside the furnace, the insertion hole cannot be opened, and it is provided so that it protrudes from the inside of the mounting member when operating a structure such as an industrial furnace. It is not possible to replace the sensor member, and it is necessary to stop the operation of the structure such as an industrial furnace at the time of replacement, which causes a problem that the work efficiency is significantly lowered.

Jikkensho No. 51-19427 Japanese Unexamined Patent Publication No. 11-183266 Special Table 2012-528654

The present invention solves the above-mentioned various problems in the case where a sensor member for detecting the temperature inside a structure such as an industrial furnace is mounted so as to be inserted into the inside of the structure. Is the subject.

That is, in the present invention, when the sensor member is mounted so as to be inserted into the structure as described above, the sensor member can be quickly replaced, and the sensor member inserted into the structure is further formed. When replacing the sensor member, it is not necessary to stop the operation of the structure as in the conventional case, and the sensor member is placed inside the structure so that gas or the like inside the structure does not leak from the mounting portion of the sensor member. It is an object of the present invention to make it easy to take out from the sensor member and replace the sensor member.

In the sensor member mounting structure according to the present invention, in order to solve the above-mentioned problems, in the sensor member mounting structure in which the sensor member is mounted so as to be inserted inside the structure, the sensor is mounted on the upper part of the structure. provided with an insertion hole for inserting the member, the upper side of the insertion hole, while providing the liquid storage portion is housed the liquid between the outer tube at the outer periphery of the inner tube and the inner tube communicating with the insertion hole A sensor member to be inserted into the structure through the insertion hole from the inner pipe is provided from the lower surface of the lid to be mounted so as to close the liquid storage portion, and the outer circumference of the sensor member is provided. On the side, a sealing cylinder to be inserted into the liquid contained between the inner pipe and the outer pipe in the liquid storage portion was provided.

Then, in the sensor member mounting structure, the upper side of the insertion hole provided in the upper part of the structure, was accommodating the liquid between the outer tube at the outer periphery of the inner tube and the inner tube communicating with the insertion hole A sensor member provided with a liquid accommodating portion and mounted so as to close the top of the liquid accommodating portion is inserted into the structure from the inner pipe through an insertion hole from the lower surface of the lid. At the same time, the sealing cylinder provided on the outer peripheral side of the sensor member is inserted into the liquid contained between the inner pipe and the outer pipe in the liquid storage portion , whereby the lid and the liquid are stored. part was sealed between the interior of the structure by the stowed sealed accommodating cylinder that is inserted into the liquid, short gas or the like in the inside of the structure from leaking to the outside through the inner tube from the insertion hole It can be easily prevented in time, and the sensor member can be inserted into the structure so that the work of replacing the sensor member can be easily performed in a short time .

Further, in the sensor member mounting structure according to the present invention, a valve member is provided between the upper part of the structure provided with the insertion hole and the liquid storage portion, and is provided downward from the lid. In the state before the tip of the sensor member is guided to the valve member, the valve member is closed, while in the state where the valve member is open, the sensor member is inserted through the valve member. It can be inserted into the structure through the insertion hole of. When the valve member is provided in this way and the sensor member is inserted into the structure through the valve member with the valve member open, the sensor member is provided downward from the lid. The sealing cylinder is inserted into the liquid in the liquid storage portion in which the liquid for preventing leakage is stored between the inner pipe and the outer pipe.

In this way, the valve member is opened in a state where the sealing cylinder provided downward from the lid is inserted into the liquid contained in the liquid storage portion , and the valve member is opened downward from the lid. The provided sensor member can be inserted into the structure through an insertion hole provided in the upper part of the structure through the valve member. On the other hand, when the lid is raised and the sensor member is taken out through the valve member from the insertion hole provided in the upper part of the structure, the tip of the sensor member is guided onto the valve member. By closing the valve member, it is possible to prevent gas or the like inside the structure from leaking to the outside from the inner pipe of the liquid storage portion through the valve member through the insertion hole, and the sensor member provided on the lid can be replaced. In some cases, it becomes possible to prevent gas or the like inside the structure from leaking to the outside from the inner pipe of the liquid storage portion through the valve member through the insertion hole.

As the sensor member mounting structure according to the present invention, the upper side of the insertion hole provided in the upper part of the structure, to accommodate the liquid between the outer tube at the outer periphery of the inner tube and the inner tube communicating with the insertion hole On the other hand, a sensor member for being inserted into the structure through the insertion hole from the inner pipe is provided from the lower surface of the lid to be mounted so as to close the upper part of the liquid storage portion. A sealing cylinder is provided on the outer peripheral side of the sensor member, and the sealing cylinder is placed in the liquid in the liquid storage portion between the inner pipe and the outer pipe containing the leakage prevention liquid. By inserting it into the structure, the space between the inside of the structure is sealed by the lid and the sealing cylinder inserted into the liquid in the liquid storage portion, and the gas or the like inside the structure is inserted into the insertion hole. It becomes possible to easily prevent the liquid from leaking to the outside through the inner pipe in a short time, and it becomes possible to easily replace the sensor member inserted inside the structure.

As a result, in the sensor member mounting structure according to the present invention, the flange of the mounting member provided so as to project the sensor member is removed or mounted via the flange provided on the structure to remove or mount the bolt, nut, or packing. However, it takes time and effort, and the atmosphere inside the furnace is released from the insertion hole that is open during that time, and it is possible to reduce the decrease in temperature and pressure inside the furnace and the change in the concentration of the atmosphere.

Further, in the sensor member mounting structure according to the present invention, a valve member is provided between the upper part of the structure provided with the insertion hole and the liquid storage portion, and is provided downward from the lid. In the state before the tip of the sensor member is guided to the valve member, the valve member is closed, while in the state where the valve member is opened, the sensor member is inserted through the valve member. When the sensor member is inserted into the structure through the insertion hole and the sensor member is inserted into the structure through the valve member with the valve member open, the sensor member is inserted downward from the lid. The sealing cylinder provided toward the above is inserted into the liquid in the liquid storage portion in which the liquid for preventing leakage is stored between the inner pipe and the outer pipe. be able to.

In this way, the valve member is opened in a state where the sealing cylinder provided downward from the lid is inserted into the liquid storage portion containing the liquid for preventing leakage, and the valve member is opened downward from the lid. The sensor member provided toward the above can be inserted into the structure through the insertion hole provided in the upper part of the structure through the valve member. Further, when the lid body is raised and the sensor member is taken out through the valve member from the insertion hole provided in the upper part of the structure, the sealing cylinder provided downward from the lid body is used. It is in a state of being inserted into the liquid in the liquid storage portion in which the liquid for preventing leakage is stored between the inner pipe and the outer pipe, and the tip of the sensor member is guided onto the valve member. By closing the valve member in this state, it is possible to prevent gas or the like inside the structure from leaking to the outside from the inner pipe of the liquid storage portion through the valve member through the insertion hole, and the sensor member provided on the lid body. It becomes possible to prevent gas or the like inside the structure from leaking to the outside from the inner pipe of the liquid storage part through the valve member through the insertion hole when replacing the structure, and the structure of an industrial furnace or the like. There is no need to stop the operation.

In the sensor member mounting structure in one embodiment of the present invention, it is a schematic cross-sectional explanatory view showing a step of mounting the sensor member so as to be inserted into the inside of the structure, and FIG. A sensor member and a sealing cylinder are provided on the outer peripheral side of the sensor member, and the sensor member is inserted into an inner tube provided above an insertion hole in the upper part of the structure, and the sealing cylinder is inserted. A state in which the liquid for preventing leakage is stored between the inner pipe and the outer pipe provided above the insertion hole is inserted into the liquid in the liquid storage portion, and (B) shows the above-mentioned (A). ), The lid body is further lowered to guide the sensor member through the inner pipe to the inside of the structure through the insertion hole, and the lid body closes the liquid storage portion. Indicated. In the sensor member mounting structure in the other embodiment of the present invention, the upper part of the structure provided with the insertion hole and the liquid storage portion in which the liquid for preventing leakage is stored between the inner pipe and the outer pipe. A valve member is provided between the two, and with the valve member closed, the sensor member provided on the lower surface of the lid is inserted into the inner pipe of the liquid storage portion, and the sealing cylinder is inserted. It is a schematic cross-sectional explanatory view which showed the state which showed the state which inserted into the liquid in the said liquid accommodating part which accommodated the liquid for prevention of leakage between the inner pipe and the outer pipe. In the sensor member mounting structure in the other embodiment, the lid is lowered from the state shown in FIG. 2, the valve member is opened, and the sensor member is opened through the inner pipe. It is a schematic cross-sectional explanatory view which showed the state which led to the inside of a member. In the sensor member mounting structure in the other embodiment, the lid body is further lowered from the state shown in FIG. 3, and the sensor member is passed through the inner tube and the opened valve member. It is a schematic cross-sectional explanatory view which showed the state which led to the inside of a structure from an insertion hole, and also closed the liquid accommodating part by a lid.

Hereinafter, the sensor member mounting structure according to the embodiment of the present invention will be specifically described with reference to the accompanying drawings. The sensor member mounting structure according to the present invention is not limited to that shown in the following embodiments, and can be appropriately modified and implemented without changing the gist of the invention.

In the sensor member mounting structure according to the embodiment of the present invention, the structure 10 is an industrial furnace 10, and a sensor member 20 such as a temperature sensor is inserted into the inside 11 of the industrial furnace 10 and mounted, and the sensor member 20 is used. A case of detecting the temperature and the like inside the industrial furnace 10 will be described.

Here, in the sensor member mounting structure according to the embodiment shown in FIGS. 1A and 1B, an insertion hole for inserting the sensor member 20 into the inside 11 of the industrial furnace 10 is inserted into the ceiling portion 13 above the industrial furnace 10. 14 is provided.

Then, on the ceiling portion 13 provided with the insertion hole 14, the two ring-shaped mounting flanges 31 and 32 are ring-shaped so as to communicate with the insertion hole 14. By laminating through 33, the hole 31a of the lower mounting flange 31 is made substantially the same diameter as the insertion hole 14, while the hole 32a of the upper mounting flange 32 is made smaller than the insertion hole 14. On the outer peripheral side of the hole 32a of the mounting flange 32 above, a liquid storage portion 34 for storing the liquid x for preventing leakage is provided between the inner pipe 34a and the outer pipe 34b provided upward. ..

Further, in this embodiment, when the detection unit 21 is provided at the tip of the sensor member 20 and the sensor member 20 is provided downward from the lid 40, the sensor member 20 is provided on the upper flange 41 of the lid 40 and the upper flange 41 of the lid 40. The lower flange 43 provided under the upper flange 41 via the seal member 42 extends downward, and the sealing cylinder 44 downwards from the portion of the lower flange 43 on the outer peripheral side of the sensor member 20. Is provided by welding or the like so that the tip of the sensor member 20 is located below the tip of the sealing cylinder 44. The upper flange 41, the sealing member 42, and the lower flange 43 are fastened with bolts or the like.

Here, in this embodiment, the lid 40 is positioned above the liquid storage portion 34, and as shown in FIG. 1A, the lid 40 is lowered to lower the lid 40. The sensor member 20 extending downward from the upper flange 41 in the above is inserted into the inner pipe 34a in the liquid accommodating portion 34, and downward from the portion of the lower flange 43 in the lid 40. The provided sealing cylinder 44 is inserted into the liquid x between the inner pipe 34a and the outer pipe 34b in which the leak-preventing liquid x is stored in the liquid storage portion 34.

Then, as shown in FIG. 1 (B), the lid 40 is further lowered, the sealing cylinder 44 is lowered in the liquid storage portion 34, and the lid 40 is lowered. It is placed on the inner pipe 34a and the outer pipe 34b, and the lid 40 closes the liquid storage portion 34 containing the liquid x for preventing leakage, and the detection unit at the tip of the sensor member 20. 21 is inserted into the inside 11 of the industrial furnace 10 through an insertion hole 14 provided in the ceiling portion 13 of the industrial furnace 10, and the state of the temperature and the like of the inside 11 of the industrial furnace 10 is determined by the detection unit 21 by the sensor member 20. I am trying to detect it.

Further, in this embodiment, the sensor member 20 is attached to the upper flange 41 of the lid 40 by welding or the like, and when the sensor member 20 is to be replaced, the sensor member 20 is attached. The flange 41 is separated from the lower flange 43 provided with the sealing cylinder 44 so that the sensor member 20 can be replaced together with the upper flange 41.

Then, in the sensor member mounting structure in this embodiment, the liquid accommodating portion 34 accommodating the leak-preventing liquid x is closed by the lid 40 as described above, and the sealing cylinder 44 is closed as described above. The liquid storage in which the leak-preventing liquid x is stored by the lid 40 and the sealing cylinder 44 simply by lowering the liquid in the liquid storage unit 34 and placing it on the liquid storage unit 34. The part 34 was sealed.

Therefore, when the sensor member 20 breaks down and needs to be replaced, if the sensor member 20 and the lid 40 are set and prepared in advance as spare parts, they can be placed on the liquid storage portion 34. It can be replaced in a short time just by remounting it.

Next, the sensor member mounting structure in the other embodiments shown in FIGS. 2 to 4 will be specifically described.

In the other embodiment as well, as in the above embodiment, the ceiling portion 13 above the industrial furnace 10 is provided with an insertion hole 14 for inserting the sensor member 20 into the inside 11 of the industrial furnace 10.

Then, in this embodiment, a support cylinder 15 communicating with the insertion hole 14 is provided on the ceiling portion 13 provided with the insertion hole 14, and the support cylinder 15 is placed on the support cylinder 15 in the embodiment. A ring-shaped lower mounting flange 31 having a hole 31a having a diameter substantially the same as the insertion hole 14 is attached, and the lower mounting flange 31 and a hole 32a than the insertion hole 14 in the above embodiment are attached. A valve member 50 is provided between the ring-shaped upper mounting flange 32 having a smaller diameter.

Here, also in this embodiment, as in the case of the above-described embodiment, the inner pipe 34a and the outer pipe 34b provided upward on the outer peripheral side of the hole 32a of the mounting flange 32 above. A liquid accommodating portion 34 accommodating the liquid x for preventing leakage is provided between them.

Further, a detection unit 21 is provided at the tip of the sensor member 20, and the sensor member 20 is placed downward through the upper flange 41 of the lid 40 and the lower flange 43 provided under the upper flange 41 via the seal member 42. In addition to extending, a sealing cylinder 44 is provided downward from the portion of the lower flange 43 on the outer peripheral side of the sensor member 20, and the tip of the sensor member 20 is from the tip of the sealing cylinder 44. Is also located below.

Then, in this embodiment, when the valve member 50 is provided between the lower mounting flange 31 and the upper mounting flange 32 as described above, the lower flange portion 51 of the valve member 50 is set to the lower portion. The above mounting flange 32 is mounted on the mounting flange 31 of the valve member 50 via the sealing member 51a, while the above mounting flange 32 is mounted on the upper flange portion 52 of the valve member 50 via the sealing member 52a.

Further, in the embodiment, an introduction for guiding the sensor member 20 extending downward from the lid 40 to the insertion hole 14 of the industrial furnace 10 through the valve member 50 at the center of the valve member 50. The portion 53 is provided in the vertical direction, and a valve member 54 for opening and closing the introduction portion 53 is provided in the vertical intermediate portion of the introduction portion 53, and the valve member 54 is operated by the operation lever 55 to introduce the portion 53. The part 53 is opened and closed.

Next, in this embodiment, the detection unit 21 at the tip of the sensor member 20 extending downward from the lid 40 is inserted into the inside 11 of the industrial furnace 10 through the insertion hole 14 provided in the ceiling portion 13 of the industrial furnace 10. The operation of inserting is described.

First, in this embodiment, as shown in FIG. 2, the valve member 54 provided in advance in the vertical intermediate portion of the introduction portion 53 of the valve member 50 is operated by the operating lever 55, and the valve member 54 is operated. The introduction portion 53 is closed so that the gas or the like in the internal 11 of the industrial furnace 10 does not leak or the pressure in the internal 11 does not fluctuate.

Then, in this state, as in the case of the above-described embodiment, the lid 40 located above the liquid storage portion 34 is lowered and extended downward from the upper flange 41 of the lid 40. The ejected sensor member 20 is inserted into the inner pipe 34a of the liquid storage portion 34, and the sealing cylinder 44 provided downward from the lower flange 43 portion of the lid 40 is inserted into the inner pipe 34a. In the liquid storage unit 34, the liquid x for preventing leakage is inserted into the liquid x between the inner pipe 34a and the outer pipe 34b and sealed.

Next, the lid 40 is further lowered, the sensor member 20 is inserted into the inner pipe 34a, and the sensor member 20 is guided into the introduction portion 53 provided at the center of the valve member 50. When the detection unit 21 at the tip of the sensor member 20 approaches the position of the valve member 54 in the state where the introduction unit 53 is closed, the valve member 54 is operated by the operation lever 55 as shown in FIG. The introduction unit 53 is opened, and the tip end portion of the sensor member 20 provided with the detection unit 21 is introduced into the introduction unit 53 in which the valve member 54 is opened in this way.

After that, the lid 40 is further lowered, the sealing cylinder 44 is lowered in the liquid storage portion 34, and as shown in FIG. 4, the lid 40 is attached to the inner pipe 34a. And the outer tube 34b, and the lid 40 closes the liquid storage unit 34 containing the liquid x for preventing leakage, and the detection unit 21 at the tip of the sensor member 20 is described. It is inserted into the inside 11 of the industrial furnace 10 through the insertion hole 14 provided in the ceiling portion 13 of the industrial furnace 10 through the inside of the introduction portion 53 which is in the open state as in The state such as temperature is detected by the sensor member 20. At this time, the length of the sealing cylinder 44 is set so that a gap is formed between the lower end thereof and the mounting flange 32.

Then, in this embodiment, when the sensor member 20 already attached to the industrial furnace 10 is to be replaced, the lid 40 is lowered and opened as shown in FIGS. 2 to 4 above. Contrary to the case where the detection unit 21 at the tip of the sensor member 20 is inserted into the inside 11 of the industrial furnace 10 through the insertion hole 14 provided in the ceiling portion 13 of the industrial furnace 10 through the inside of the introduction unit 53, the lid body 40 is raised to raise the sensor member 20 inserted into the inside 11 of the industrial furnace 10 from the insertion hole 14 provided in the ceiling portion 13 of the industrial furnace 10, and the detection unit 21 provided at the tip of the sensor member 20. Is guided above the introduction portion 53 of the valve member 50, and while the sealing cylinder 44 is inserted into the liquid x, the valve member 54 is operated by the operating lever 55 of the valve member 50. Is operated so that the introduction portion 53 is closed by the valve member 54.

In this way, the high temperature gas or the like inside the industrial furnace 10 is suppressed at the position of the introduction portion 53 closed by the valve member 54 in the valve member 50, and the high temperature gas or the like inside the industrial furnace 10 is suppressed. The sensor member 20 can be replaced while suppressing leakage to the outside through the inner pipe 34a in the liquid storage portion 34.

Here, also in this embodiment, as in the case of the above-described embodiment, when the sensor member 20 is attached to the upper flange 41 of the lid 40 and the sensor member 20 is to be replaced, the sensor member 20 is attached. The upper flange 41 to which the sensor member 20 is attached is separated from the lower flange 43 provided with the sealing cylinder 44 so that the sensor member 20 can be replaced together with the upper flange 41.

In separating the upper flange 41 to which the sensor member 20 is attached from the lower flange 43, the sealing cylinder 44 is taken out from the liquid storage portion 34, and the sensor member 20 is liquid. The upper flange 41 to which the sensor member 20 is attached can be separated from the lower flange 43 in a state of being taken out from the inner pipe 34a of the accommodating portion 34, and the work of replacing the sensor member 20 can be easily performed. become able to.

Further, in each of the above-described embodiments, the sealing cylinder 44 provided on the lower flange 43 of the lid 40 as described above is inserted into the liquid storage portion 34 containing the liquid x for preventing leakage. The lid 40 is placed on the liquid storage portion 34 to close the liquid storage portion 34, and the detection portion 21 at the tip of the sensor member 20 is inserted into the inside 11 of the industrial furnace 10 and is industrialized by the detection unit 21. The state such as the temperature of the inside 11 of the furnace 10 is detected by the sensor member 20, and in this case, it is stored in the liquid storage unit 34 due to the fluctuation of the pressure of gas or the like inside the industrial furnace 10. In order to prevent the leak-preventing liquid x from leaking from the liquid storage portion 34, the heights of the inner pipe 34a and the outer pipe 34b in the liquid storage portion 34 and the leak-prevention liquid to be stored in the liquid storage portion 34. It is preferable to adjust the amount of x.

Further, if the sealing cylinder 44 is directly welded downward from the upper flange 41, the sealing member 33 and the lower flange 43 can be eliminated, the number of parts can be reduced, and the cost can be reduced. Can be done.

10: Industrial furnace (structure)
11: Internal 13: Ceiling part 14: Insertion hole 15: Support cylinder 20: Sensor member 21: Detection part 31: Mounting flange 31a: Hole 32: Mounting flange 32a: Hole 33: Seal member 34: Liquid storage part 34a: Inner pipe 34b: Outer pipe 40: Lid body 41: Upper flange 42: Sealing member 43: Lower flange 44: Sealing cylinder 50: Valve member 51: Lower flange portion 51a: Sealing member 52: Upper flange portion 52a: Sealing member 53: Introductory part 54: Valve member 55: Operating lever x: Liquid

Claims (4)

In the sensor member mounting structure for mounting the sensor element so as to be inserted into the interior of the structure, provided with an insertion hole for inserting the sensor element at the top of the structure, the upper side of the insertion hole, the insertion hole downward from the lower surface of the one providing the liquid storage portion that is storing the liquid, the lid to be mounted so as to close the top of the liquid storage portion between the outer tube at the outer periphery of the inner tube and the inner tube communicating with A sensor member is provided so as to be inserted into the structure through the insertion hole from the inner pipe , and the sensor member is housed between the inner pipe and the outer pipe in the liquid storage portion on the outer peripheral side of the sensor member. A sensor member mounting structure characterized by providing a sealing cylinder that can be inserted into a liquid. In the sensor member mounting structure according to claim 1, a valve member is provided between the upper portion of the structure provided with the insertion hole and the liquid storage portion, and is provided downward from the lid. In the state before the tip of the sensor member is guided to the valve member, the valve member is closed, while in the state where the valve member is opened, the sensor member is inserted through the valve member. A sensor member mounting structure characterized by being inserted into the structure through the insertion hole of. In the sensor member mounting structure according to claim 2, when the valve member is opened, the sealing cylinder provided downward from the lid is the inner pipe and the outer pipe in the liquid storage portion. A sensor member mounting structure characterized in that it is inserted in a liquid contained between and. In the sensor member mounting structure according to claim 2 or 3, the valve member is closed with the lid body raised and the tip of the sensor member guided above the valve member. A sensor member mounting structure characterized by exchanging the sensor member.

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