JP2014134438A - Probe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a probe capable of precisely measuring state of a fluid.SOLUTION: The probe comprises: a guide which is arranged so that the outer peripheral surface is in contact with the inner peripheral surface hole H and to protrude at the other side X of a wall W in a state being inserted in a hole H; and a probe main body disposed at the inner peripheral side of the guide and is arranged to make a relative movement with respect to the guide from one side Y to the other side X. The guide has movement regulation parts 23A, 33A and 43A for regulating end portions 23C, 33C and 43C at the other side X not to move toward the one side Y exceeding a plane W2 at the other side X of the wall W. The probe main body is arranged so that the end portion at the other side X can protrude toward the other side X exceeding the end portions 23C, 33C and 43C at the other side X of the guide.

Description

  The present invention relates to a probe.

  In general, the measurement of the fluid state inside a device such as a gas turbine is performed by inserting a probe provided with a sensor at the tip from the outside to the inside of a hole formed in the wall portion of the device. Yes.

  As a probe, a system including a sensor support part of a hollow tube and a sensor arranged inside the sensor support part and having a smaller diameter than the sensor support part has been proposed (see Patent Document 1 below). In this system, the sensor support part is inserted into the wall part in which the hole is formed, the tip of the sensor support part is provided on the inner wall part (inner barrier part) of the hole, and the sensor is directed toward the inner side of the wall part. Can be moved to measure the internal state of the machine.

JP 2012-112949 A

  Here, in the system described in Patent Document 1, when the sensor is arranged in the hole together with the sensor support portion, a gap may be generated between the sensor support portion and the inner peripheral surface of the hole. Therefore, when there is a fluid inside the machine, the fluid flow is disturbed by this gap, and there is a problem that the state of the fluid cannot be measured accurately.

  The present invention has been made in view of such circumstances, and provides a probe that can accurately measure the state of a fluid.

In order to achieve the above object, the present invention employs the following means.
That is, the probe according to the present invention is a probe that is inserted into a hole formed in a wall portion from one side of the wall portion toward the other side, and is inserted into the hole portion and has an outer peripheral surface. Is arranged on the inner peripheral side of the guide portion and comes into contact with the inner peripheral surface of the hole portion and protrudes to the other side of the wall portion from the one side with respect to the guide portion. A probe main body that is relatively movable toward the other side, and the guide portion has an end on the other side that moves toward the one side rather than the surface on the other side of the wall portion. The probe main body is characterized in that the other end portion of the probe body can protrude further to the other side than the other end portion of the guide portion.

  In such a probe, the movement restricting portion restricts the movement of the other end portion of the guide portion disposed on the outer peripheral side of the probe main body toward the one side from the other surface of the wall portion. ing. Therefore, the end on the other side of the guide part does not move into the hole, so that a gap is formed between the outer peripheral surface of the probe main body arranged on the inner peripheral side of the guide part and the inner peripheral surface of the wall part. It will not be done. Therefore, when there is a fluid on the other side of the wall portion, the fluid flow is not disturbed due to the gap, so that the state of the fluid can be accurately measured.

Further, in the probe according to the present invention, the guide portion is composed of a plurality of guide tubes arranged concentrically,
The small diameter guide tube may be capable of projecting to the other side than the large diameter guide tube.

  In such a probe, the probe main body is supported by the guide tube in a state where the probe main body protrudes to the other side of the wall portion. Further, the small diameter guide tube is supported by the large diameter guide tube. Therefore, since the probe main body is supported by the plurality of guide tubes in a state where the probe main body protrudes to the other side of the wall portion, the state of the fluid can be stably measured.

  Further, in the probe according to the present invention, the guide portion has a moving portion that moves in the hole portion from the other side toward the one side, and the movement restricting portion is disposed radially outward from the moving portion. You may be provided in the said other side of this moving part so that it may protrude toward.

  In such a probe, since the movement restricting portion protrudes radially outward from the moving portion, the movement restricting portion does not move in the hole toward one side of the wall portion. That is, no gap is formed between the outer peripheral surface of the probe body and the inner peripheral surface of the wall portion. Therefore, when there is a fluid on the other side of the wall portion, the flow of the fluid is not disturbed, so that the state of the fluid can be accurately measured.

  In the probe according to the present invention, the guide portion and the probe main body are inserted into the hole portion and moved to the one side with respect to the wall portion. The end surface and the other end surface of the probe body may be flush with the other surface of the wall portion.

  In such a probe, the end surface on the other side of the guide portion and the end surface on the other side of the probe main body can be in a state of not projecting from the surface on the other side of the wall portion. Therefore, the fluid flow in the vicinity of the surface on the other side of the wall portion is not disturbed, so that the state of the fluid in the vicinity of the surface on the other side of the wall portion can be accurately measured.

  With the probe according to the present invention, the state of the fluid can be accurately measured.

It is sectional drawing which shows one state (1st state) of the probe which concerns on 1st embodiment of this invention. It is an enlarged view in the other side of the wall part of the probe which concerns on 1st embodiment of this invention. It is sectional drawing which shows one state (5th state) of the probe which concerns on 1st embodiment of this invention. It is sectional drawing which shows one state (2nd state) of the probe which concerns on 1st embodiment of this invention. It is sectional drawing which shows one state (3rd state) of the probe which concerns on 1st embodiment of this invention. It is sectional drawing which shows one state (4th state) of the probe which concerns on 1st embodiment of this invention. It is sectional drawing which shows the probe which concerns on the modification 1 of 1st embodiment of this invention. It is sectional drawing which shows the structure of the wall part of the outer periphery of the probe which concerns on the modification 2 of 1st embodiment of this invention. It is sectional drawing which shows the structure of the probe which concerns on 2nd embodiment of this invention. It is sectional drawing which shows the structure of the probe which concerns on 3rd embodiment of this invention. It is sectional drawing which moved the probe which concerns on 3rd embodiment of this invention from the state of FIG.

(First embodiment)
Hereinafter, a probe according to a first embodiment of the present invention will be described with reference to the drawings.
A probe is for measuring the state of the combustion gas (fluid) inside the casing of the combustor which comprises a gas turbine, for example.
As shown in FIG. 1, the probe 1 according to the present embodiment has a hole H formed in the wall W (casing) in the wall thickness direction from the outer side (one side) to the inner side (the other side). Side). And the state of the fluid inside an apparatus is measured by the measurement part 11 provided in the front-end | tip.
Here, for the sake of convenience, the lower side of the paper surface that is the inner side of the wall portion W is referred to as the X direction, and the upper side of the paper surface that is the outer side of the wall portion W is referred to as the Y direction.

  The probe 1 includes a probe main body 10 provided with a measuring unit 11 at the tip, and a guide unit 20 inserted from the outside to the inside with respect to a hole H formed in the wall W.

  The probe main body 10 is a linear member, and can be relatively moved in the wall thickness direction (XY direction) inside the guide portion 20. A measuring unit 11 is connected to the end of the probe body 10 in the X direction. The measurement unit 11 can sense the state of the fluid such as the pressure and temperature of the fluid.

  A display unit 12 is provided on the Y side of the probe body 10. The display unit 12 displays the measurement result measured by the measurement unit 11. Further, on the Y side of the probe body 10, a moving mechanism 13 for moving the probe body 10 to a desired position is provided.

  Furthermore, a first protrusion 14 that protrudes radially outward is provided at the X-side end of the probe body 10. Further, a second projecting portion 15 projecting radially outward is provided on the Y side of the probe body 10.

  The guide portion 20 includes a plurality of guide tubes 21, 31, and 41 that are tubular members arranged concentrically in the radial direction. In the present embodiment, a first guide tube 21 (small diameter guide tube) disposed on the outer peripheral side of the probe body 10 and a second guide tube 31 (large diameter guide) disposed on the outer peripheral side of the first guide tube 21. Tube) and a third guide tube 41 (a guide tube having a larger diameter than the second guide tube 31) disposed on the outer peripheral side of the second guide tube 31.

  As shown in FIG. 2, the outer diameter P <b> 1 of the first guide tube 21 is formed smaller than the outer diameter P <b> 2 of the second guide tube 31. Further, the outer diameter P2 of the second guide tube 31 is formed smaller than the outer diameter P3 of the third guide tube 41. Further, the outer diameter P3 of the third guide tube 41 is formed substantially the same as the diameter Q of the hole H. Thereby, the third guide tube 41 can be attached to the wall portion W by fitting the outer peripheral surface of the third guide tube 41 to the inner peripheral surface of the hole H.

  The first guide tube 21 has an inner peripheral surface formed along the outer peripheral surface of the probe main body 10. As with the first guide tube 21, the inner peripheral surface of the second guide tube 31 is formed along the outer peripheral surface of the first guide tube 21. Similarly to the first guide tube 21, the third guide tube 41 has an inner peripheral surface formed along the outer peripheral surface of the second guide tube 31.

As shown in FIGS. 1 and 3, the first guide tube 21 is movable along the wall thickness direction in the second guide tube 31, and when moved, the outer peripheral surface thereof is the second guide tube 31. It touches the inner peripheral surface of. The second guide tube 31 is movable along the wall thickness direction in the third guide tube 41, and the outer peripheral surface thereof contacts the inner peripheral surface of the third guide tube 41 when moving. further,
The third guide tube 41 is movable along the wall thickness direction inside the hole H, and its outer peripheral surface comes into contact with the inner peripheral surface of the hole H when moving.

  The length S3 of the third guide tube 41 is longer than the wall thickness R. Further, the length S2 of the second guide tube 31 is longer than the length S3 of the third guide tube 41. Further, the length S1 of the first guide tube 21 is longer than the length S2 of the second guide tube 31. Furthermore, the length T from the first protrusion 14 to the second protrusion 15 in the probe body 10 is longer than the length S1 of the first guide tube 21.

  Thereby, in the state where the probe 1 is inserted into the hole H, the end portion (end surface) 43C on the X side of the third guide tube 41 can protrude from the inner surface W2 of the wall portion W. Further, the X-side end portion (end surface) 33 </ b> C of the second guide tube 31 can protrude from the X-side end portion 43 </ b> C of the third guide tube 41. Further, the X-side end portion (end surface) 23 </ b> C of the first guide tube 21 can protrude from the X-side end portion 33 </ b> C of the second guide tube 31. Furthermore, the X-side end (end surface) 10 </ b> A of the probe main body 10 can protrude from the X-side end 23 </ b> C of the first guide tube 21.

The third guide tube 41 includes a third moving portion 42 (moving portion) that moves in the wall thickness direction in the hole H, an extension portion 46 that protrudes in the X direction from the third moving portion 42, and an extension portion 46. On the other hand, it has a detachable separating part 45.
The separating portion 45 can be attached to and detached from the extension portion 46 by, for example, a bolt (not shown).

  The separation portion 45 includes a wall portion 43A (movement restriction portion) formed from the radially outer end portion of the third moving portion 42 toward the radially outer side, and a radially outer end portion of the wall portion 43A in the X direction. A wall portion 43B that is bent toward the inner side, and an end portion 45A that is bent toward the radially inner side from the end portion of the wall portion 43B.

The extension portion 46 includes an end portion 46A that is an extension of the end portion 45A of the separation portion 45, a wall portion 43D that is bent in the Y direction from the end portion 46A, and an end portion on the Y side of the wall portion 43D. It has a wall 43E that is bent inward in the radial direction and connected to the third moving part 42.
Here, the end portion 45A of the separation portion 45 and the end portion 46A of the extension portion 46 continuously constitute an end portion 43C.

  In other words, the wall portion 43 </ b> A is provided at an end portion on the X side (the other side) of the third moving portion 42, and is formed so as to protrude radially outward from the third moving portion 42. The wall 43A restricts the end 43C of the third guide tube 41 from moving toward the Y side from the inner surface W2 of the wall W.

  That is, as shown in FIG. 2, the wall portion 43 </ b> A of the third guide tube 41 can be engaged with the inner surface W <b> 2 of the wall portion W in a state where the probe 1 is inserted into the hole H. Accordingly, the third guide tube 41 is restricted from moving in the Y direction from the state in which the wall 43A is engaged with the inner surface W2 of the wall W.

  Further, the second guide tube 31 is directed from the second moving part 32 (moving part) moving in the wall thickness direction in the hole H and the radially outer end of the second moving part 32 toward the radially outer side. And a wall portion 33B bent in the X direction from the radially outer end of the wall portion 33A.

  Furthermore, the second guide tube 31 includes an end portion 33C bent inward in the radial direction from the end portion of the wall portion 33B, and a wall portion 33D bent in the Y direction from the end portion of the end portion 33C. And a wall 33E that is bent inward in the radial direction from the Y-side end of the wall 33D and connected to the second moving part 32.

  In other words, the wall portion 33 </ b> A is provided at an end portion on the X side (the other side) of the second moving portion 32 and is formed so as to protrude radially outward from the second moving portion 32. The wall portion 33A restricts the end portion 33C of the second guide tube 31 from moving toward the Y side from the inner surface W2 of the wall portion W.

  That is, as shown in FIG. 2, in a state where the probe 1 is inserted into the hole H, the wall 33 </ b> A of the second guide tube 31 can be engaged with the wall 43 </ b> E provided in the third guide tube 41. ing. Thereby, the wall portion 43A of the third guide tube 41 is engaged with the inner surface W2 of the wall portion W, and the wall portion 33A of the second guide tube 31 is engaged with the wall portion 43E of the third guide tube 41. The second guide tube 31 is restricted from moving in the Y direction.

  In addition, the first guide tube 21, like the second guide tube 31, has a first moving part 22 (moving part) that moves inside the hole H in the wall thickness direction, and a radially outer side of the first moving part 22. A wall portion 23A (movement restricting portion) formed radially outward from the end portion, and a wall portion 23B bent in the X direction from the radially outer end portion of the wall portion 23A. Yes.

  Furthermore, the first guide tube 21 has an end portion 23C that is bent inward in the radial direction from the end portion of the wall portion 23B, and a wall portion 23D that is bent in the Y direction from the end portion of the end portion 23C. And a wall portion 23E that is bent inward in the radial direction from the Y-side end portion of the wall portion 23D and is connected to the first moving portion 22.

  In other words, the wall portion 23 </ b> A is provided at an end portion on the X side (the other side) of the first moving portion 22, and is formed so as to protrude radially outward from the first moving portion 22. The wall portion 23A restricts the end portion 23C of the first guide tube 21 from moving toward the Y side from the inner surface W2 of the wall portion W.

  That is, as shown in FIG. 2, the wall portion 23 </ b> A of the first guide tube 21 can be engaged with the wall portion 33 </ b> E provided in the second guide tube 31 in a state where the probe 1 is inserted into the hole H. ing. Accordingly, the wall portion 43A of the third guide tube 41 is engaged with the inner surface W2 of the wall portion W, the wall portion 33A of the second guide tube 31 is engaged with the wall portion 43E of the third guide tube 41, and the first The first guide tube 21 is restricted from moving in the Y direction from the state in which the wall portion 23 </ b> A of the one guide tube 21 is engaged with the wall portion 33 </ b> E of the second guide tube 31.

  Further, the first projecting portion 14 provided on the probe main body 10 is engageable with a wall portion 23 </ b> E provided on the first guide tube 21.

  That is, as shown in FIG. 2, the wall portion 43A of the third guide tube 41 is engaged with the inner surface W2 of the wall portion W, and the wall portion 33A of the second guide tube 31 is engaged with the wall portion 43E of the third guide tube. The wall portion 23A of the first guide tube 21 is engaged with the wall portion 33E of the second guide tube 31, and the first projecting portion 14 of the probe body 10 is engaged with the wall portion 23E of the first guide tube 21. In this state, together with the first guide tube 21, the second guide tube 31, and the third guide tube 41, the probe body 10 is restricted from moving from this state in the Y direction.

  As shown in FIG. 1, a first engagement portion 24 that protrudes radially outward is provided at the Y-direction end of the first guide tube 21. A second engaging portion 34 that protrudes radially outward is provided at the Y-direction end of the second guide tube 31. A third engaging portion 44 that protrudes radially outward is provided at the Y-direction end of the third guide tube 41.

  Next, a measurement procedure for measuring the state of the fluid inside the wall portion W using the probe 1 configured as described above will be described.

  As shown in FIG. 1, the hole H which penetrates the wall part W is first formed as a preliminary preparation. The diameter of the hole H is substantially the same as the diameter of the third guide tube 41 of the probe 1.

  Here, the first projecting portion 14 of the probe main body 10 of the probe 1 is engaged with the wall portion 23 </ b> E of the first guide tube 21. Further, the wall portion 23 </ b> A of the first guide tube 21 is engaged with the wall portion 33 </ b> E of the second guide tube 31. Further, the wall portion 33 </ b> A of the second guide tube 31 is engaged with the wall portion 43 </ b> E of the third guide tube 41. Note that the separation portion 45 provided in the third guide tube 41 is detached from the extension portion 46.

  The probe 1 in the above state is inserted into the hole H formed in the wall portion W, and the separation portion 45 of the third guide tube 41 is attached to the extension portion 46. As described above, the state in which the probe 1, the first guide tube 21, the second guide tube 31, and the third guide tube 41 are inserted into the hole H and arranged in the most Y direction is referred to as a first state. .

  As shown in FIG. 4, when the moving mechanism 13 provided in the probe main body 10 is driven, the probe main body 10 moves inside the first guide tube 21 in the X direction. Then, when the second projecting portion 15 provided on the probe main body 10 engages with the first engaging portion 24 provided on the first guide tube 21, the relative movement of the probe main body 10 with respect to the first guide tube 21 stops. To do. This state is referred to as a second state.

  Next, as shown in FIG. 5, the first guide tube 21 moves in the X direction along with the probe body 10 within the second guide tube 31. When the first engagement portion 24 provided in the first guide tube 21 is engaged with the second engagement portion 34 provided in the second guide tube 31, the first guide tube 21 and the probe body 10 are The relative movement with respect to the two guide tubes 31 stops. This state is referred to as a third state.

  Next, as shown in FIG. 6, the second guide tube 31 moves in the X direction inside the third guide tube 41 together with the first guide tube 21 and the probe main body 10. When the second engagement portion 34 provided on the second guide tube 31 engages with the third engagement portion 44 provided on the third guide tube 41, the second guide tube 31 and the first guide tube 21. And the movement of the probe body 10 stops. This state is referred to as a fourth state.

  Next, as shown in FIG. 3, the third guide tube 41 moves in the X direction inside the hole H together with the second guide tube 31, the first guide tube 21, and the probe main body 10. And if the 3rd engaging part 44 provided in the 3rd guide pipe 41 engages with the outer surface W1 of the wall part W, the 3rd guide pipe 41, the 2nd guide pipe 31, the 1st guide pipe 21, and the probe main body The movement of 10 stops. This state is referred to as a fifth state.

  Here, when the fluid state is measured by the measurement unit 11 in the desired state from the first state to the fifth state, the measurement result is displayed on the display unit 12 provided in the probe body 10.

  In the probe 1 configured as described above, in the first state shown in FIG. 1, the first protruding portion 14 of the probe main body 10 is engaged with the wall portion 23 </ b> E of the first guide tube 21. Further, the wall portion 23 </ b> A of the first guide tube 21 is engaged with the wall portion 33 </ b> E of the second guide tube 31. Further, the wall portion 33 </ b> A of the second guide tube 31 is engaged with the wall portion 43 </ b> E of the third guide tube 41. Furthermore, the wall portion 43 </ b> A of the third guide tube 41 is engaged with the inner surface W <b> 2 of the wall portion W. Thereby, the probe main body 10, the first guide tube 21, the second guide tube 31, and the third guide tube 41 are restricted from moving in the Y direction from the first state. Therefore, for example, the third guide tube 41 does not move in the Y direction from the first state, and a gap is not formed between the outer peripheral surface of the second guide tube 31 and the inner peripheral surface of the hole H. Further, the first guide tube 21, the second guide tube 31 and the third guide tube 41 move in the Y direction from the first state, and between the outer peripheral surface of the probe main body 10 and the inner peripheral surface of the hole H. No gap is formed. Therefore, when there is a fluid on the X side of the wall portion W, the flow of the fluid is not disturbed due to the gap, so that the state of the fluid can be accurately measured.

  In the third state shown in FIG. 5, the probe body 10 protruding to the X side is supported by the first guide tube 21. Further, in the fourth state shown in FIG. 6 in which the probe main body 10 protrudes to the X side than the third state, the probe main body 10 protruding to the X side is supported by the second guide tube 31 and the third guide tube 41. . Further, in the fifth state shown in FIG. 3 in which the probe main body 10 protrudes to the X side from the fourth state, the probe main body 10 protruding to the X side includes the first guide tube 21, the second guide tube 31, and the third guide tube. 41 is supported. Therefore, since the probe main body 10 is reliably supported by the plurality of guide tubes 21, 31, 41 according to the length of the wall W of the probe main body 10 protruding from the inner surface W2, the fluid state can be stabilized. Can be measured.

  Moreover, the state of the fluid at the desired position can be measured by arranging the measurement unit 11 at a desired position from the first state to the fifth state. Therefore, the state of the fluid according to the distance from the inner surface W2 of the wall portion W can be measured stepwise.

  Further, as described above, the fluid flow is not disturbed, the fluid is not involved, and corrosion due to impure gas and impurity accumulation can be prevented.

(Modification 1 of the first embodiment)
As a first modification of the first embodiment, as shown in FIG. 7, a probe 1 integrated with an attachment 2 is provided in a through hole H1 formed with a diameter larger than the hole H of the first embodiment. Also good.

The wall portion W includes a wall portion main body W3 and an attachment 2.
The attachment 2 is an annular member disposed on the outer periphery of the probe 1 and has a first annular portion 2A and an outer diameter that is provided on the X side of the first annular portion 2A and is larger than the diameter of the first annular portion 2A. It has the formed 2nd annular part 2B. For example, the attachment 2 is fixed to the wall portion W3 by fitting the outer peripheral surface of the attachment 2 to the inner peripheral surface of the through hole H1.

  A hole H2 (corresponding to a hole formed in the wall W) is formed so as to communicate the inner periphery of the first annular part 2A and the second annular part 2B. The probe 1 is inserted through the hole H2. The probe 1 is integrated with the attachment 2 so as to be slidable in the XY directions.

  According to the probe 1 and the attachment 2 configured as described above, the probe 1 is integrated with the attachment 2 in advance and attached to the wall portion W3 via the attachment 2. Therefore, the probe 1 can be easily attached to the wall portion W3 by fitting the attachment 2 into the through hole H1 formed in the wall portion W3.

  Further, since the attachment 2 is formed of a member that can be elastically deformed in the radial direction, the attachment 2 has a diameter even when the inner diameter of the through hole H1 formed in the wall portion W3 and the outer diameter of the attachment 2 are not substantially the same. By elastically deforming in the direction, the probe 1 can be reliably attached to the wall W3 via the attachment 2.

(Modification 2 of the first embodiment)
As a second modification of the first embodiment, as shown in FIG. 8, a recess J recessed outward in the radial direction is provided on the X-side edge of the hole H3 formed in the wall W over the circumferential direction. It may be done.

The concave portion J includes a wall portion J1 bent from the inner peripheral surface of the hole portion H3 toward the radially outer side, and a wall portion J2 bent from the radially outer end portion of the wall portion J1 toward the X direction. And have.
The wall portion 43A of the third guide tube 41 can be engaged with the wall portion J1 of the recess J.

  In the probe 1 configured as described above, the wall portion 43A of the third guide tube 41 is engaged with the wall portion J1 of the recess J in the first state. Further, the X-side end portion 10 </ b> A of the probe body 10, the X-side end portion 23 </ b> C of the first guide tube 21, the X-side end portion 33 </ b> C of the second guide tube 31, and the X-side end portion of the third guide tube 41. 43C is flush with the inner surface W2 of the wall W. Accordingly, the X-side end portion of the guide portion 20 and the X-side end portion of the probe main body 10 do not protrude from the inner surface of the wall portion W, so that the fluid flow near the inner surface W2 of the wall portion W in the first state. Will not disturb. Therefore, the state of the fluid near the inner surface W2 of the wall W can be accurately measured.

(Second embodiment)
Hereinafter, the probe 201 according to the second embodiment of the present invention will be described with reference to FIG.
In this embodiment, the same members as those used in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  A first urging portion 19 is provided between the second projecting portion 15 provided on the probe main body 10 and the first engaging portion 24 provided on the first guide tube 21. The first urging portion 19 urges the first projecting portion 14 in the Y direction and urges the first engaging portion 24 in the X direction.

  A second urging portion 29 is provided between the first engagement portion 24 provided in the first guide tube 21 and the second engagement portion 34 provided in the second guide tube 31. . The second urging portion 29 urges the first engaging portion 24 in the Y direction and urges the second engaging portion 34 in the X direction.

  A third urging portion 39 is provided between the second engagement portion 34 provided in the second guide tube 31 and the third engagement portion 44 provided in the third guide tube 41. . The third urging portion 39 urges the second engaging portion 34 in the Y direction and urges the third engaging portion 44 in the X direction.

  Further, a fourth urging portion 49 is provided between the third engagement portion 44 provided in the third guide tube 41 and the outer surface W1 of the wall portion W. The fourth urging portion 49 urges the third engaging portion 44 in the Y direction and urges the outer surface W1 of the wall portion W in the X direction.

  The spring constant of the first biasing part 19 is smaller than the spring constant of the second biasing part 29. Further, the spring constant of the second urging portion 29 is smaller than the spring constant of the third urging portion 39. Further, the spring constant of the third urging portion 39 is smaller than the spring constant of the fourth urging portion 49.

Next, the operation of the probe 201 configured as described above will be described.
When the probe 201 is moved in the X direction by the moving mechanism 13, the first biasing portion 19 having the smallest spring constant among the biasing portions 19, 29, 39, and 49 contracts. Therefore, the second protrusion 15 of the probe main body 10 moves toward the first engagement portion 24 of the first guide tube 21, that is, in the X direction. When the first urging portion 19 contracts until the second projecting portion 15 comes close to the first engaging portion 24, the second urging portion 29 having the next smallest spring constant contracts.

  The first engagement portion 24 of the first guide tube 21 moves toward the second engagement portion 34 of the second guide tube 31, that is, in the X direction. When the second urging portion 29 contracts until the first engaging portion 24 comes close to the second engaging portion 34, the third urging portion 39 having the next smallest spring constant contracts.

  The second engaging portion 34 of the second guide tube 31 moves toward the third engaging portion 44 of the third guide tube 41, that is, in the X direction. And if the 3rd biasing part 39 contracts until the 2nd engaging part 34 adjoins to the 3rd engaging part 44, the 4th biasing part 49 with the next small spring constant will shrink | contract.

  The third engaging portion 44 of the third guide tube 41 moves toward the outer surface W1 of the wall portion W, that is, in the X direction. Then, the fourth urging portion 49 contracts until the third engaging portion 44 comes close to the outer surface W1 of the wall portion W, and the probe 201 is moved to the maximum in the X direction.

  When the probe 201 is moved in the Y direction by the moving mechanism 13 from this state, the spring constant is increased in order, that is, the fourth biasing portion 49, the third biasing portion 39, the second biasing portion 29, and the first biasing portion. In the order of 19, these urging portions 49, 39, 29, 19 are extended so as to return to the original state.

  In the probe 201 configured as described above, when the probe 201 is moved toward the X side, the first guide tube 21, the second guide tube 31, and the third guide tube 41 are arranged in this order, that is, on the inner peripheral side. The guide tubes 21, 31, 41 moved in order. On the other hand, when the probe 201 is moved toward the wall Y side, the guide tubes 41, 31, arranged in the order of the third guide tube 41, the second guide tube 31, and the first guide tube 21, that is, the outer peripheral side. Move sequentially from 21. Therefore, the probe main body 10 protruding toward the X side of the wall W is supported by the guide tube 21 disposed on the outer periphery thereof. Further, the guide tube 21 (31) protruding toward the X side of the wall W is supported by the guide tube 31 (41) disposed on the outer periphery thereof. Therefore, since the probe main body 10 protruding to the X side of the wall W is supported by the guide tubes 21, 31, 41 arranged on the outer peripheral side, the state of the fluid can be stably measured.

(Third embodiment)
Hereinafter, a probe 301 according to a third embodiment of the present invention will be described with reference to FIGS. 10 and 11.
In this embodiment, the same members as those used in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The probe 1 according to the first embodiment described above is composed of three guide tubes, that is, a first guide tube 21, a second guide tube 31, and a third guide tube 41, whereas the probe 1 according to the present embodiment. The probe 301 is composed of a single guide tube 321.

  The guide tube 321 is arranged along the inner periphery of the hole H4 and is movable in the XY direction. Inside the guide tube 321, the probe main body 10 is arranged to be movable in the XY direction.

  In the probe 301 configured as described above, the probe main body 10 and the guide tube 321 are moved in the X and Y directions, so that the hole H4 formed in the guide tube 321 and the wall W can be easily configured. The state of the fluid can be measured without forming a gap between them.

  The various shapes and combinations of the constituent members shown in the above-described embodiments are merely examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

  For example, in the first embodiment, between the probe body 10 and the first guide tube 21, between the first guide tube 21 and the second guide tube 31, and between the second guide tube 31 and the third guide tube 41. An annular O-ring (not shown) may be interposed. In this case, the O-ring can prevent the flow from flowing out from the inside to the outside of the wall portion W, and can further prevent dust and the like from entering from the outside to the inside of the wall portion W. Can do.

Further, the probe according to the present invention can be used for a wind tunnel device or the like in addition to a gas turbine.
Furthermore, by injecting liquid or gas into the probe main body, it is possible to inject liquid or gas into the device into which the probe main body is inserted, so that the present invention can also be applied to a denitration apparatus. In this case, it is possible to inject liquid or gas without disturbing the flow of fluid inside the device.

DESCRIPTION OF SYMBOLS 1 ... Probe 10 ... Probe main body 20 ... Guide part 21 ... 1st guide tube (guide tube)
22 ... 1st moving part (moving part)
23A ... Wall part (movement restriction part)
31 ... Second guide tube (guide tube)
32 ... Second moving part (moving part)
33A ... Wall part (movement restriction part)
41 ... Third guide tube (guide tube)
42. Third moving part (moving part)
43A ... Wall part (movement restriction part)
H ... hole W ... wall

In such a probe, the probe main body is supported by the guide tube in a state where the probe main body protrudes to the other side of the wall portion. Further, the small diameter guide tube is supported by the large diameter guide tube. Therefore, since the probe main body is supported by the plurality of guide tubes in a state where the probe main body protrudes to the other side of the wall portion, the state of the fluid can be stably measured.
In the probe according to the present invention, a liquid or a gas may be injected into the probe main body.
Such a probe can be applied to a denitration apparatus because a liquid or a gas can be injected into the device into which the probe main body is inserted.

Claims (4)

A probe that is inserted into a hole formed in a wall portion from one side of the wall portion toward the other side,
A guide portion that is inserted into the hole portion and has an outer peripheral surface that is in contact with an inner peripheral surface of the hole portion and can protrude to the other side of the wall portion;
A probe main body arranged on the inner peripheral side of the guide portion, and capable of moving relative to the guide portion from the one side toward the other side;
The guide portion includes a movement restricting portion that restricts movement of the end portion on the other side toward the one side rather than the surface on the other side of the wall portion,
The probe body is characterized in that the other end of the probe body can protrude further to the other side than the other end of the guide portion. The probe according to claim 1, wherein
The guide portion is composed of a plurality of guide tubes arranged concentrically,
A probe characterized in that the small-diameter guide tube can project to the other side of the large-diameter guide tube. The probe according to claim 1 or claim 2,
The guide part has a moving part that moves in the hole part from the other side toward the one side,
The probe is characterized in that the movement restricting portion is provided on the other side of the moving portion so as to protrude radially outward from the moving portion. The probe according to any one of claims 1 to 3,
In the state where the guide part and the probe body are inserted into the hole part and moved to the one side with respect to the wall part, the other end face of the guide part and the other side of the probe body The end surface of the probe is flush with the other surface of the wall portion.

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