JP5772624B2

JP5772624B2 - Temperature measuring device

Info

Publication number: JP5772624B2
Application number: JP2012012303A
Authority: JP
Inventors: 伊藤　裕之; 裕之伊藤; 一彦浜戸; 佐藤　伸吾; 伸吾佐藤; 孝成稲田; 豊和川島
Original assignee: Chiyoda Corp; Yamari Industries Ltd; JXTG Nippon Oil and Energy Corp
Current assignee: Chiyoda Corp; Yamari Industries Ltd; Eneos Corp
Priority date: 2012-01-24
Filing date: 2012-01-24
Publication date: 2015-09-02
Anticipated expiration: 2032-01-24
Also published as: JP2013152117A

Description

本発明は、測温対象への保護管付き温度計の挿入長を可変とした温度測定装置に係り、特に、焼却炉や熱風炉、ＦＣＣ（流動接触分解装置）、硫黄回収装置用テールガスインシネレーター等における流体温度の測定に好適な温度測定装置に関するものである。 The present invention relates to a temperature measuring device in which the insertion length of a thermometer with a protective tube to a temperature measuring object is variable, and in particular, an incinerator, a hot air furnace, an FCC (fluid catalytic cracking device), and a tail gas in for sulfur recovery device. The present invention relates to a temperature measuring device suitable for measuring fluid temperature in a sineator or the like.

従来から、この種の操業効率と温度とが密接な関係を有するプロセスにおいて、温度測定装置により最適な温度プロファイルを得るためには、温度と温度計保護管の挿入長の関係を探ったり、測温対象による温度計保護管の磨耗（触媒やダストによるエロージョン）の軽減が求められる。一般的に、適切な温度プロファイルを得るためには温度計保護管の挿入長を長くする必要がある。他方、温度計によるプロセスへの影響を極力少なくしたり、温度計保護管の上記磨耗を小さくするためには、温度計保護管の挿入長を短くする必要がある。このように、温度計の存在によりプロセス流動が乱れることを好まない環境下での測温精度に耐える最小挿入長を探るべく、従来から温度計保護管の挿入長を可変とした温度測定装置が提案されている（例えば、特許文献１参照。）。 Conventionally, in order to obtain an optimum temperature profile with a temperature measurement device in a process in which this type of operation efficiency and temperature are closely related, the relationship between the temperature and the insertion length of the thermometer protection tube is investigated or measured. It is required to reduce the wear of the thermometer protective tube (erosion due to catalyst and dust) due to the temperature target. Generally, in order to obtain an appropriate temperature profile, it is necessary to lengthen the insertion length of the thermometer protection tube. On the other hand, in order to reduce the influence of the thermometer on the process as much as possible and to reduce the wear of the thermometer protection tube, it is necessary to shorten the insertion length of the thermometer protection tube. Thus, in order to find the minimum insertion length that can withstand the temperature measurement accuracy in an environment that does not like to disturb the process flow due to the presence of the thermometer, a temperature measuring device with a variable insertion length of the thermometer protection tube has been conventionally used. It has been proposed (see, for example, Patent Document 1).

特許文献１は、温度計保護管をシールした状態で配管等に取り付けるシールユニオンを有する温度測定装置に関するものであり、ユニオンナット部が取り付けられたつば部を配管に溶接し、ユニオンネジ部及び球状弾性シール材が挿着された温度計保護管を取り付け、所定深さに挿入してからユニオンナット部を回して球状弾性シール材を挟圧することによりシールする構造である。そして、温度計保護管の挿入長を変える際には、ユニオンナット部を緩め、挿入深さを変えてから、再びユニオンナット部を締め付けることで行われる。 Patent Document 1 relates to a temperature measuring device having a seal union that is attached to a pipe or the like in a state where a thermometer protection pipe is sealed. A thermometer protection tube with an elastic sealing material inserted is attached, and after inserting it to a predetermined depth, the union nut portion is turned to seal by sealing the spherical elastic sealing material. When changing the insertion length of the thermometer protection tube, the union nut portion is loosened, the insertion depth is changed, and then the union nut portion is tightened again.

しかしながら、このような特許文献１の温度測定装置によれば、測温対象が高圧の場合、温度計のスッポ抜けを恐れて、本来のシール性（気密性）を保つために必要な締め付け力以上の過度な締め付け力を与えがちであり、シール材が過剰な力で挟圧され、弾力性を損なってしまうため退化を早める原因になる。また、温度計保護管の挿入長を変える際、シール材の締め付けを一旦緩めて温度計の位置決めした後、再締め付けする必要があるため、作業性が悪く、更には、操業中にこのような挿入長を変えると、ユニオンナット部を緩めた瞬間に温度計がスッポ抜けてしまう虞があり、安全性が低いため、操業中の挿入長の調整を行うことは困難である。 However, according to the temperature measuring apparatus of Patent Document 1 described above, when the temperature measurement target is a high pressure, it is feared that the thermometer will fall off, and the tightening force is more than necessary to maintain the original sealing property (airtightness). The excessive tightening force tends to be applied, and the sealing material is pinched with an excessive force, and the elasticity is impaired, which causes a rapid degeneration. In addition, when changing the insertion length of the thermometer protective tube, it is necessary to loosen the sealing material and position the thermometer again, and then tighten it again. If the insertion length is changed, the thermometer may fall off at the moment when the union nut portion is loosened, and since the safety is low, it is difficult to adjust the insertion length during operation.

実公平５−１７３３号公報Japanese Utility Model No.5-1733

そこで、本発明が前述の状況に鑑み、解決しようとするところは、本来のシール性（気密性）を保つために必要な締め付け力でシールしつつ、温度計保護管の抜けを確実に防止でき、加圧操業中でも条件に適した温度計保護管の挿入長を作業性良く且つ安全に調整、設定できる安価な構造の温度測定装置を提供する点にある。 Therefore, in view of the above-described situation, the present invention intends to solve the problem by reliably preventing the thermometer protection tube from coming off while sealing with the tightening force necessary to maintain the original sealing performance (airtightness). The object is to provide an inexpensive temperature measuring device that can adjust and set the insertion length of the thermometer protection tube suitable for the conditions even during the pressurization operation with good workability and safety.

本発明は、前述の課題解決のために、保護管付き温度計を有する温度測定装置であって、前記保護管が軸方向に移動可能に挿着される取り付け部材を設けるとともに、該取り付け部材と前記保護管との隙間に単又は複数の環状シール部材を装着し、該環状シール部材を軸方向に押圧保持して前記隙間をシールする押圧部材を設け、前記取り付け部材の外周部と基端側に延出している前記保護管の外周部とを、互いの軸方向に沿った相対位置を変更可能に連結する連結手段を設けてなり、該連結手段により前記相対位置を変更することで、前記取り付け部材の先端側に突出する前記保護管の当該突出長さを調整可能としたことを特徴とする温度測定装置を構成した。 In order to solve the above-mentioned problems, the present invention provides a temperature measuring device having a thermometer with a protective tube, wherein the protective tube is provided so that the protective tube is movably inserted in the axial direction. A single or a plurality of annular seal members are mounted in the gap with the protective tube, a pressure member is provided for pressing and holding the annular seal member in the axial direction to seal the gap, and an outer peripheral portion and a proximal end side of the attachment member A connecting means for connecting the outer peripheral portion of the protective tube extending to each other so that the relative position along the axial direction can be changed, and by changing the relative position by the connecting means, A temperature measuring device characterized in that the projecting length of the protective tube projecting toward the distal end side of the mounting member is adjustable.

ここで、前記連結手段が、前記取り付け部材の外周部のフランジから基端側に延設され、且つ前記保護管の外周部のフランジに形成された貫通孔に挿通される螺軸と、該螺軸に装着され、前記保護管のフランジを挟み込んで該フランジを前記螺軸に固定するナットとよりなるものが好ましい。 Here, the connecting means extends from the flange on the outer peripheral portion of the mounting member to the base end side, and is inserted into a through hole formed in the flange on the outer peripheral portion of the protective tube, and the screw It is preferable to use a nut that is mounted on a shaft and that includes a nut that sandwiches the flange of the protective tube and fixes the flange to the screw shaft.

また、前記環状シール部材を、前記取り付け部材の基端側から前記保護管との隙間に挿着するとともに、前記押圧部材を、同じく基端側から前記隙間に挿着したものが好ましい。 In addition, it is preferable that the annular seal member is inserted into the gap between the attachment member and the protective tube from the base end side, and the pressing member is inserted into the gap from the base end side.

特に、前記押圧部材の前記隙間から基端側に延出している外周部のフランジと、前記取り付け部材の外周部のフランジとの間に締め付け手段を設け、該締め付け手段の締め付けにより前記押圧部材が取り付け部材側に軸方向に沿って移動して前記環状シール部材を押圧保持するものが好ましい。 In particular, a fastening means is provided between the outer peripheral flange extending from the gap of the pressing member to the base end side and the outer peripheral flange of the mounting member, and the pressing member is tightened by the fastening means. What moves to an attachment member side along an axial direction, and press-holds the said annular seal member is preferable.

更には、前記連結手段が、前記取り付け部材の外周部のフランジから基端側に延設され、且つ前記押圧部材のフランジに形成された貫通孔及び前記保護管の外周部のフランジに形成された貫通孔の双方に挿通される螺軸と、該螺軸に装着され、前記保護管のフランジを挟み込んで該フランジを前記螺軸に固定するナットとよりなるものが好ましい。 Further, the connecting means extends from the flange on the outer peripheral portion of the mounting member to the base end side, and is formed on the through hole formed in the flange of the pressing member and the flange on the outer peripheral portion of the protective tube. A screw shaft inserted into both of the through holes and a nut attached to the screw shaft and sandwiching the flange of the protective tube to fix the flange to the screw shaft are preferable.

また、前記取り付け部材の外周部から基端側に向けて、軸方向に沿った長穴を有する長尺部材を延設するとともに、前記取り付け部材の基端側に延出している前記保護管の外周部に、前記長尺部材の長穴に係合して取り付け部材との相対位置が変更された際に該長穴に沿って摺動案内される係合部を有する被案内部を突設し、前記長尺部材の前記長穴に沿った位置に、前記被案内部の係合部の位置から前記保護管の突出長さを示す指標が表示される表示部を設けたものが好ましい。 Moreover, while extending the elongate member which has a long hole along an axial direction toward the base end side from the outer peripheral part of the said attachment member, the said protection tube of extending to the base end side of the said attachment member A guided portion is provided on the outer peripheral portion having an engaging portion that is slidably guided along the elongated hole when the relative position with the mounting member is changed by engaging with the elongated hole of the elongated member. And it is preferable to provide a display portion for displaying an index indicating the protruding length of the protective tube from the position of the engaging portion of the guided portion at a position along the elongated hole of the elongated member.

更に、前記環状シール部材の保護管との接触面に耐熱潤滑剤を塗布したものが好ましい。 Furthermore, it is preferable to apply a heat-resistant lubricant to the contact surface of the annular seal member with the protective tube.

特に、前記耐熱潤滑剤としてのグリスを供給するためのグリスアップ用リングを前記複数の環状シール部材の間に介装するとともに、前記取り付け部材の外周壁の前記グリスアップ用リングに対応した位置に、該外周壁を貫通して前記グリスアップ用リングにグリスを供給するためのグリス供給ノズルを設けたものが好ましい。 In particular, a grease-up ring for supplying grease as the heat-resistant lubricant is interposed between the plurality of annular seal members, and at a position corresponding to the grease-up ring on the outer peripheral wall of the mounting member. It is preferable to provide a grease supply nozzle that passes through the outer peripheral wall and supplies grease to the grease-up ring.

また、前記取り付け部材の外周壁に、前記保護管との隙間であって前記環状シール部材の装着位置よりも先端側の隙間に連通し、該隙間にパージ用の流体を供給するための流体供給ノズルを設けたものが好ましい。 Further, a fluid supply for supplying a purge fluid to the outer peripheral wall of the attachment member, which is in communication with a clearance between the protective tube and a tip side of the mounting position of the annular seal member. What provided the nozzle is preferable.

以上にしてなる本願発明によれば、押圧部材により環状シール部材に最適な必要最低限の加圧力をかけてシールすればよく、保護管の抜けは、取り付け部材外周部と保護管外周部とを互いの軸方向に沿った相対位置を変更可能に連結する連結手段により別途防止でき、この連結手段を操作して前記相対位置を変更するだけで、シール部材への加圧力を緩めることなく最適なシール状態を保持したまま保護管を軸方向に移動させることができ、加圧操業中でも条件に適した温度計保護管の突出長さ（測温対象への挿入長）を作業性良く且つ安全に調整、設定することができる。 According to the present invention as described above, it is only necessary to seal the annular seal member by applying the minimum necessary pressure to the annular seal member, and the protective tube can be detached by connecting the outer peripheral portion of the attachment member and the outer peripheral portion of the protective tube. The relative position along the axial direction of each other can be separately prevented by a connecting means that can be changed, and only by changing the relative position by operating this connecting means, it is optimal without loosening the pressure applied to the seal member. The protective tube can be moved in the axial direction while maintaining the sealed state, and the protruding length of the thermometer protective tube (insertion length to the temperature measurement object) suitable for the conditions during pressurization operation is easy and safe. Can be adjusted and set.

また、前記連結手段が、前記取り付け部材の外周部のフランジから基端側に延設され、且つ前記保護管の外周部のフランジに形成された貫通孔に挿通される螺軸と、該螺軸に装着され、前記保護管のフランジを挟み込んで該フランジを前記螺軸に固定するナットとよりなるので、温度計保護管の挿入長を詳細に調整できるとともに、安価な構造であるため加圧操業中でも挿入長の調整を安全且つ作業性良く行える温度測定装置を低コストで提供できる。 A screw shaft extending from a flange on an outer peripheral portion of the attachment member to a proximal end side and inserted into a through hole formed in the flange on the outer peripheral portion of the protective tube; and the screw shaft And a nut that clamps the flange of the protective tube and fixes the flange to the screw shaft, so that the insertion length of the thermometer protective tube can be adjusted in detail, and since it is an inexpensive structure, the pressure operation In particular, it is possible to provide a temperature measuring device that can adjust the insertion length safely and with good workability at a low cost.

また、前記環状シール部材を、前記取り付け部材の基端側から前記保護管との隙間に挿着するとともに、前記押圧部材を、同じく基端側から前記隙間に挿着したので、シール性の高い構造を提供できる。 Further, since the annular seal member is inserted into the gap from the protective tube from the base end side of the mounting member, and the pressing member is also inserted into the gap from the base end side, the sealing performance is high. Can provide structure.

また、前記押圧部材の前記隙間から基端側に延出している外周部のフランジと、前記取り付け部材の外周部のフランジとの間に締め付け手段を設け、該締め付け手段の締め付けにより前記押圧部材が取り付け部材側に軸方向に沿って移動して前記環状シール部材を押圧保持するので、上記シール性の高い構造を安価に提供でき、環状シール部材の組付け作業も容易である。 Further, a fastening means is provided between the outer peripheral flange extending from the gap of the pressing member to the proximal end side and the outer peripheral flange of the mounting member, and the pressing member is tightened by the fastening means. Since the annular seal member is moved in the axial direction to the attachment member side and pressed and held, the structure with high sealing performance can be provided at low cost, and the assembly work of the annular seal member is also easy.

また、前記連結手段が、前記取り付け部材の外周部のフランジから基端側に延設され、且つ前記押圧部材のフランジに形成された貫通孔及び前記保護管の外周部のフランジに形成された貫通孔の双方に挿通される螺軸と、該螺軸に装着され、前記保護管のフランジを挟み込んで該フランジを前記螺軸に固定するナットとよりなるので、環状シール部材を押圧するシール用の押圧部材のフランジに対し、上記貫通孔により螺軸を貫通させて組みつけているので、装置のコンパクト化が図れる。 Further, the connecting means extends from the outer peripheral flange of the mounting member to the proximal end side, and the through hole formed in the flange of the pressing member and the through hole formed in the outer peripheral flange of the protective tube A screw shaft that is inserted into both of the holes, and a nut that is attached to the screw shaft and sandwiches the flange of the protective tube and fixes the flange to the screw shaft. Since the screw shaft is passed through the through hole and assembled to the flange of the pressing member, the apparatus can be made compact.

また、前記取り付け部材の外周部から基端側に向けて、軸方向に沿った長穴を有する長尺部材を延設するとともに、前記取り付け部材の基端側に延出している前記保護管の外周部に、前記長尺部材の長穴に係合して取り付け部材との相対位置が変更された際に該長穴に沿って摺動案内される係合部を有する被案内部を突設し、前記長尺部材の前記長穴に沿った位置に、前記被案内部の係合部の位置から前記保護管の突出長さを示す指標が表示される表示部を設けたので、表示部の指標を読んで保護管の突出長さを把握しながら正確に調整することができる。 Moreover, while extending the elongate member which has a long hole along an axial direction toward the base end side from the outer peripheral part of the said attachment member, the said protection tube of extending to the base end side of the said attachment member A guided portion is provided on the outer peripheral portion having an engaging portion that is slidably guided along the elongated hole when the relative position with the mounting member is changed by engaging with the elongated hole of the elongated member. In addition, since the display unit is provided at the position along the elongated hole of the elongated member, the display unit displays an index indicating the protruding length of the protective tube from the position of the engaging portion of the guided portion. It is possible to adjust accurately while reading the indicators and grasping the protruding length of the protective tube.

また、前記環状シール部材の保護管との接触面に耐熱潤滑剤を塗布したので、加圧力によるシール性を維持したまま保護管の軸方向への移動をスムーズにすることができ、環状シール部材が保護管外周面に固着して移動の際に捻れや破れを生じてしまうといった不測の事態を未然に防止することができる。 In addition, since the heat-resistant lubricant is applied to the contact surface of the annular seal member with the protective tube, the protective tube can be smoothly moved in the axial direction while maintaining the sealing performance by the applied pressure. However, it is possible to prevent an unforeseen situation in which the wire is fixed to the outer peripheral surface of the protective tube and twisted or torn during movement.

また、前記耐熱潤滑剤としてのグリスを供給するためのグリスアップ用リングを前記複数の環状シール部材の間に介装するとともに、前記取り付け部材の外周壁の前記グリスアップ用リングに対応した位置に、該外周壁を貫通して前記グリスアップ用リングにグリスを供給するためのグリス供給ノズルを設けたので、このグリス供給ノズルからグリスを供給して、環状シール部材のシール性を継続的に高めることができ、測温対象である内部流体の漏洩をより確実に防止できるとともに、環状シール部材の潤滑性が継続的に保持されることから、連結手段により保護管をいつでも軸方向にスムーズに移動させることができ、環状シール部材の捻れや破れを確実に防止でき、環状シール部材を確実に保護できる。またグリスアップ用リングは環状シール部材間に介装されているため各環状シール部材にグリスを確実に供給できる。 In addition, a grease-up ring for supplying grease as the heat-resistant lubricant is interposed between the plurality of annular seal members, and at a position corresponding to the grease-up ring on the outer peripheral wall of the mounting member. Since the grease supply nozzle for supplying the grease to the grease-up ring through the outer peripheral wall is provided, the grease is supplied from the grease supply nozzle to continuously improve the sealing performance of the annular seal member. It is possible to prevent leakage of the internal fluid that is the target of temperature measurement more reliably, and the lubricity of the annular seal member is continuously maintained, so that the protective tube can be moved smoothly in the axial direction at any time by the connecting means. Therefore, twisting and tearing of the annular seal member can be reliably prevented, and the annular seal member can be reliably protected. Further, since the grease-up ring is interposed between the annular seal members, the grease can be reliably supplied to each annular seal member.

また、前記取り付け部材の外周壁に、前記保護管との隙間であって前記環状シール部材の装着位置よりも先端側の隙間に連通し、該隙間にパージ用の流体を供給するための流体供給ノズルを設けたので、この流体供給ノズルから不活性ガスやスチーム等のパージ用流体を供給して、測温対象である内部流体による環状シール部材の腐食等を防止して環状シール部材を保護できるとともに、当該隙間へのスケール（コーク等）の堆積を防止でき、該スケールが連結手段による保護管の突出長さの調整を阻害したり温度測定精度に悪影響を及ぼすことを未然に防止できる。また、緊急時に当該流体供給ノズルから隙間に対してコーキング材などを注入し、測温対象である内部流体の漏洩を阻止することもできる。 Further, a fluid supply for supplying a purge fluid to the outer peripheral wall of the attachment member, which is in communication with a clearance between the protective tube and a tip side of the mounting position of the annular seal member. Since the nozzle is provided, a purge fluid such as an inert gas or steam is supplied from the fluid supply nozzle, and the annular seal member can be protected by preventing corrosion or the like of the annular seal member due to the internal fluid to be measured. In addition, accumulation of scale (coke or the like) in the gap can be prevented, and the scale can be prevented from obstructing the adjustment of the protruding length of the protective tube by the connecting means or adversely affecting the temperature measurement accuracy. Further, in the event of an emergency, a caulking material or the like can be injected into the gap from the fluid supply nozzle to prevent leakage of the internal fluid that is a temperature measurement target.

本発明の第１実施形態に係る温度測定装置を示す簡略縦断面図。BRIEF DESCRIPTION OF THE DRAWINGS The simplified longitudinal cross-sectional view which shows the temperature measuring apparatus which concerns on 1st Embodiment of this invention. 同じく温度測定装置を示す図１のＡ−Ａ横断面図。The AA cross-sectional view of FIG. 1 which similarly shows a temperature measuring device. 連結手段の変形例を示す説明図。Explanatory drawing which shows the modification of a connection means. 本発明の第２実施形態に係る温度測定装置を示す簡略縦断面図。The simplified longitudinal section showing the temperature measuring device concerning a 2nd embodiment of the present invention. 同じく温度測定装置の要部を示す拡大簡略縦断面図。The enlarged simplified longitudinal cross-sectional view which shows the principal part of a temperature measuring device similarly.

次に、本発明の実施形態を添付図面に基づき詳細に説明する。 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

まず、図１〜図３に基づき、本発明の第１実施形態を説明する。 First, a first embodiment of the present invention will be described with reference to FIGS.

本実施形態の温度測定装置１は、図１に示すように、保護管（ウエル）付き温度計２と、該温度計２の保護管（ウエル）２１が軸方向に移動可能に挿着される取り付け部材３と、該取り付け部材３と保護管２１の隙間Ｓ１に装着される環状シール部材４と、該環状シール部材４を軸方向に押圧保持して隙間Ｓ１をシールする押圧部材５と、前記取り付け部材３の外周部３ａと基端側に延出している保護管２１の外周部２１ａとを、互いの軸方向に沿った相対位置を変更可能に連結する連結手段６とより構成されている。温度計２は、従来から公知の温度計を広く適用することができ、本例では保護管２１の内部にシース熱電対２０を挿着した温度計であるが、シース熱電対２０以外に測温抵抗体その他の温度計を用いることもできる。 As shown in FIG. 1, the temperature measuring device 1 according to the present embodiment has a thermometer 2 with a protective tube (well) and a protective tube (well) 21 of the thermometer 2 movably inserted in the axial direction. The attachment member 3, the annular seal member 4 mounted in the gap S1 between the attachment member 3 and the protective tube 21, the pressing member 5 for pressing and holding the annular seal member 4 in the axial direction and sealing the gap S1, The outer peripheral part 3a of the attachment member 3 and the outer peripheral part 21a of the protective tube 21 extending to the base end side are configured by a connecting means 6 that connects the relative positions along the axial direction so that the relative positions can be changed. . As the thermometer 2, conventionally known thermometers can be widely applied. In this example, the thermometer 2 is a thermometer in which a sheath thermocouple 20 is inserted inside the protective tube 21. A resistor or other thermometer can also be used.

取り付け部材３は、保護管２１に外装される筒状本体３０と、先端側フランジ３１と、基端側フランジ３２とを備えており、測温対象の流体が内在する炉壁等に形成された取り付け穴に温度計２が挿入された状態で、その取り付け穴周囲に先端側フランジ３１が溶接等で固定される。本例では更に、環状凸部３３が筒状本体３０の内周面に突設されており、筒状本体３０内周面の前記環状凸部３３よりも基端側と保護管２１外周面との間に、環状シール部材４を装着する隙間Ｓ１が形成されている。 The attachment member 3 includes a cylindrical main body 30 that is externally mounted on the protective tube 21, a distal end side flange 31, and a proximal end side flange 32, and is formed on a furnace wall or the like in which a fluid to be temperature-measured is present. In a state where the thermometer 2 is inserted into the attachment hole, the front end side flange 31 is fixed around the attachment hole by welding or the like. In this example, an annular convex portion 33 is further provided on the inner peripheral surface of the cylindrical main body 30, and the base end side of the inner peripheral surface of the cylindrical main body 30 and the outer peripheral surface of the protective tube 21. A gap S1 for mounting the annular seal member 4 is formed between the two.

環状凸部３３は、保護管２１の外周面との間に殆ど隙間のない内周面を有する環状部材を筒状本体３０内周面に嵌めこみ、溶接したものであるが、溶接することなく前記筒状本体３０内周面の段差部に係止して先端側へ移動不能に挿着しただけの構成でもよい。また、逆に筒状本体３０と一体的に形成してもよい。環状シール部材４は、取り付け部材３の基端側から前記隙間Ｓ１に挿着され、さらに挿着された環状シール部材４の基端側から、押圧部材５が同じく隙間Ｓ１に挿着されている。環状シール部材４は本例では複数設けられているが、個数に限定はない。また、環状シール部材４の種類についても用途に応じて適宜公知の耐熱・耐圧パッキン等を用いることができる。 The annular convex portion 33 is formed by fitting an annular member having an inner peripheral surface with almost no gap between the outer peripheral surface of the protective tube 21 and welding it to the inner peripheral surface of the cylindrical main body 30, but without welding. It may be configured such that it is locked to the step portion on the inner peripheral surface of the cylindrical main body 30 and inserted so as to be immovable toward the tip side. Conversely, it may be formed integrally with the cylindrical body 30. The annular seal member 4 is inserted into the gap S1 from the base end side of the mounting member 3, and the pressing member 5 is also inserted into the gap S1 from the base end side of the inserted annular seal member 4. . A plurality of annular seal members 4 are provided in this example, but the number is not limited. In addition, as for the type of the annular seal member 4, a known heat-resistant / pressure-resistant packing or the like can be appropriately used depending on the application.

押圧部材５は、前記隙間Ｓ１に挿入され、その先端部で前記環状シール部材４を押圧する筒状本体５０と、隙間Ｓ１から延出している基端側の外周部に設けられたフランジ５１と、取り付け部材３の外周部３ａの前記基端側フランジ３２との間に設けられる締め付け手段７とより構成されており、締め付け手段７の締め付けにより、押圧部材５が軸方向に沿って取り付け部材３側に移動し、これにより筒状本体５０の先端部が環状シール部材４を押圧し、環状凸部３３との間で環状シール部材４が加圧され圧縮変形することで、取り付け部材３の筒状本体３０内周面と温度計２の保護管２１外周面との間がシールされる。 The pressing member 5 is inserted into the gap S1 and has a cylindrical main body 50 that presses the annular seal member 4 at its distal end, and a flange 51 provided on the outer peripheral portion on the base end side that extends from the gap S1. The fastening member 7 is provided between the outer peripheral portion 3a of the attachment member 3 and the proximal end side flange 32. By the fastening of the fastening member 7, the pressing member 5 is moved along the axial direction. As a result, the distal end portion of the cylindrical main body 50 presses the annular seal member 4, and the annular seal member 4 is pressurized and compressed and deformed between the annular convex portion 33, so that the cylinder of the attachment member 3 The space between the inner peripheral surface of the main body 30 and the outer peripheral surface of the protective tube 21 of the thermometer 2 is sealed.

締め付け手段７は、円環状のフランジ５１に周方向に等間隔に複数個所、本例では４箇所形成された通孔５１ａと、同じく円環状の基端側フランジ３２の前記フランジ５１の各通孔５１ａに対応する位置に形成された通孔３２ｂとの間に、螺軸７０（スタッドボルト）を挿通し、各フランジが対面する側と反対の外側にそれぞれナット７１、７１を螺合して、周方向に偏りのない均一な力で締め付けるものである。図２の横断面図に示すように、締め付け手段７は周方向に等間隔に４箇所設けられている。図１は、図２のＢ−Ｂ断面図である。本例では各フランジ５１、３２をそれぞれ略同一外径の円環状に構成したが、異なる外径寸法としたり、一方又は双方を円環状以外の形状に構成することも勿論可能である。例えば、フランジ５１を小径にするか、或いは円環状以外の形状とし、後述の連結手段６の螺軸６０を逃がし、これにより螺軸６０を挿通するための貫通孔５１ｂを省略した構造も好ましい例である。 The fastening means 7 includes a plurality of through holes 51a formed at a plurality of positions in the circumferential direction at equal intervals in the annular flange 51, in this example, four places, and each of the through holes of the flange 51 of the annular base end side flange 32. Between the through hole 32b formed at a position corresponding to 51a, a screw shaft 70 (stud bolt) is inserted, and nuts 71 and 71 are screwed on the outer side opposite to the side where each flange faces, It is tightened with a uniform force without bias in the circumferential direction. As shown in the cross-sectional view of FIG. 2, the fastening means 7 are provided at four locations at equal intervals in the circumferential direction. 1 is a cross-sectional view taken along line BB in FIG. In this example, each of the flanges 51 and 32 is formed in an annular shape having substantially the same outer diameter, but it is of course possible to have different outer diameter dimensions, or one or both may be formed in a shape other than the annular shape. For example, a preferable example is a structure in which the flange 51 has a small diameter or a shape other than an annular shape, and a screw shaft 60 of the connecting means 6 to be described later is allowed to escape so that a through hole 51b for inserting the screw shaft 60 is omitted. It is.

また、締め付け手段７は上記構造に何ら限定されるものではなく、その他の公知の締め付け手段を採用しても勿論よい。例えば、螺軸７０とナット７１の組み合わせの代りに、頭部のある六角ボルトや六角穴付ボルトとナットとの組み合わせや、通孔３２ｂを雌ネジ溝とし、これに通孔５１ａを貫通したボルトを螺合させるもの、或いはボルト等を用いる代わりに双方のフランジを締め付けるクランプ機構を設けたものなどを採用することもできる。 Further, the fastening means 7 is not limited to the above structure, and other known fastening means may of course be employed. For example, instead of the combination of the screw shaft 70 and the nut 71, a hexagon bolt with a head, a combination of a hexagon socket head bolt and a nut, or a bolt that has a through hole 32b as a female screw groove and penetrates the through hole 51a. Can be used, or a clamp mechanism for tightening both flanges can be used instead of using bolts or the like.

上述したように、従来の温度測定装置ではシール部材の加圧力で保護管の軸方向の位置も保持していたため、本来のシールのための加圧力以上の力をかけて保護管の抜けを防止する必要があったが、本発明では環状シール部材４に対して上記締め付け手段７によりシールに最適な必要最低限の加圧力をかければよく、保護管２１の抜けは後述の連結手段６により確実に防止され、且つ該連結手段６の調整により保護管２１を軸方向に移動させて突出長さ（すなわち測温対象への挿入長）を調整できるように構成されている。 As described above, in the conventional temperature measuring device, the axial position of the protective tube is also maintained by the pressure applied by the seal member, so that the force beyond the pressure for the original seal is applied to prevent the protective tube from coming off. However, in the present invention, it is only necessary to apply the minimum necessary pressure optimum for sealing to the annular seal member 4 by the tightening means 7, and the protective tube 21 can be securely removed by the connecting means 6 described later. In addition, the projection length (that is, the insertion length into the temperature measuring object) can be adjusted by moving the protective tube 21 in the axial direction by adjusting the connecting means 6.

つまり、一度締め付け手段７によって環状シール部材４を加圧してシールすれば、その後の保護管２１の突出長さの調整については、当該締め付け手段７を緩めることなく、そのままの最適なシール状態を保持したまま、連結手段６を操作するだけで保護管２１を軸方向に移動させることができ、安全性を向上するとともに操業中においても当該突出長さの調整が可能となり、作業性が著しく向上する。本例では、上記加圧力をかけたままの状態での保護管２１の軸方向への移動をスムーズにし、環状シール部材の捻れや破れを未然に防止するべく、環状シール部材４の保護管２１との接触面に耐熱潤滑剤が塗布されている。 That is, once the annular seal member 4 is pressurized and sealed by the tightening means 7, the adjustment of the protruding length of the protective tube 21 is maintained without maintaining the optimum sealing state without loosening the tightening means 7. In this state, the protective tube 21 can be moved in the axial direction simply by operating the connecting means 6, improving the safety and adjusting the protruding length during operation, thereby significantly improving workability. . In this example, the protective tube 21 of the annular seal member 4 is smoothly moved in the axial direction with the pressure applied and the twisted or torn of the annular seal member is prevented in advance. A heat-resistant lubricant is applied to the contact surface.

連結手段６は、取り付け部材３の基端側フランジ３２から基端側に延設され、且つ保護管２１の外周部２１ａのフランジ２２に形成された貫通孔２２ｂに挿通される螺軸６０（ボルト）と、該螺軸６０に装着され、保護管２１のフランジ２２を挟み込んで該フランジ２２を螺軸６０に固定するナット６１、６１とより構成されている。本例では、このような螺軸６０とナット６１、６１からなる連結手段６が、基端側フランジ３２の周方向に等間隔な複数位置、本例では図２に示すように、軸を挟んだ対称な２箇所にそれぞれ延設され、保護管２１の軸方向への移動が周方向に偏りのない均一な力でバランスよく行われる。 The connecting means 6 extends from the base end side flange 32 of the attachment member 3 to the base end side, and is inserted into a through hole 22b formed in the flange 22 of the outer peripheral portion 21a of the protective tube 21 (bolt shaft 60). ), And nuts 61 and 61 that are attached to the screw shaft 60 and sandwich the flange 22 of the protective tube 21 to fix the flange 22 to the screw shaft 60. In this example, the connecting means 6 including the screw shaft 60 and the nuts 61 and 61 are arranged at a plurality of positions at equal intervals in the circumferential direction of the proximal end flange 32. In this example, as shown in FIG. However, it extends in two symmetrical places, and the movement of the protective tube 21 in the axial direction is performed in a balanced manner with a uniform force that is not biased in the circumferential direction.

螺軸６０は、押圧部材５のフランジ５１に形成された貫通孔５１ｂを貫通してフランジ２２の貫通孔２２ｂに挿通されている。そして、ナット６１、６１を回転させ、螺軸６０に対するフランジ２２の固定位置を変更することにより保護管２１の突出長さが調整される。各螺軸６０は先端部が取り付け部材３の基端側フランジ３２に溶接により固定されているが、他の手段で固定してもよい。螺軸６０は、少なくともナット６１、６１が移動しえる調整範囲に雄ネジ部が形成されていればよい。また、フランジ２２は円環状の部材を保護管２１の外周面に溶接により固定したものであるが、必ずしも円環状の部材でなくてもよいし、保護管２１と一体的に構成されるものであれば溶接以外の手段で固定したものでもよく、保護管２１と一体的に加工形成したものでもよい。 The screw shaft 60 passes through a through hole 51 b formed in the flange 51 of the pressing member 5 and is inserted into the through hole 22 b of the flange 22. Then, the protruding length of the protective tube 21 is adjusted by rotating the nuts 61 and 61 and changing the fixing position of the flange 22 with respect to the screw shaft 60. Each screw shaft 60 has a distal end portion fixed to the proximal end side flange 32 of the attachment member 3 by welding, but may be fixed by other means. The screw shaft 60 only needs to have a male screw portion formed in an adjustment range where at least the nuts 61 and 61 can move. The flange 22 is formed by fixing an annular member to the outer peripheral surface of the protective tube 21 by welding. However, the flange 22 does not necessarily have to be an annular member, and is configured integrally with the protective tube 21. If it exists, it may be fixed by means other than welding, or may be formed integrally with the protective tube 21.

更に、連結手段６はこのような基端側フランジ３２とフランジ２２との間に設けられた螺軸６０及びナット６１、６１より構成したもの以外に、例えば図３に示すようにフランジ２２に対して回転可能且つ軸方向に相対移動不能に係止される外形略Ｉ字状のコマ部材６１Ａを設け、該コマ部材６１Ａの回転によりフランジ２２が軸方向に移動可能に構成したものや、頭部がフランジ２２に対して同じく回転可能且つ軸方向に相対移動不能に係止されるボルトを基端側フランジ３２に螺合し、ボルトの回転により基端側フランジ３２に対してフランジ２２がボルトとともに軸方向に移動可能に構成する構造など、その他の公知の連結構造により取り付け部材３の外周部と保護管２１の外周部の相対位置を変更可能に連結するものでもよい。 Further, the connecting means 6 has a screw shaft 60 and nuts 61, 61 provided between the proximal flange 32 and the flange 22, for example, as shown in FIG. Provided with a frame member 61A having a substantially I-shaped outer shape that can be rotated and locked relative to the axial direction, and the flange 22 can be moved in the axial direction by the rotation of the piece member 61A. Is bolted to the proximal flange 32 so that the bolt 22 is also rotatable with respect to the flange 22 and is not relatively movable in the axial direction, and the flange 22 together with the bolt is rotated with respect to the proximal flange 32 by the rotation of the bolt. The relative position of the outer peripheral part of the attachment member 3 and the outer peripheral part of the protective tube 21 may be connected so as to be changeable by other known connecting structures such as a structure configured to be movable in the axial direction.

また、本例では、取り付け部材３の外周部３ａから基端側に向けて、軸方向に沿った長穴８０を有する長尺部材８が延設されるとともに、保護管２１の外周部２１ａに、前記長尺部材８の長穴８０に係合して取り付け部材３との相対位置が変更された際に該長穴８０に沿って摺動案内される係合部９１を有する被案内部９が突設されている。長尺部材８の長穴８０に沿った位置には、被案内部９の係合部９１の位置から保護管２１の突出長さを示す指標、本例では目盛が表示される表示部８１が設けられており、係合部９１の目盛を読むだけで保護管２１の突出長さが把握できるように構成されている。 Further, in this example, the elongated member 8 having the long hole 80 along the axial direction is extended from the outer peripheral portion 3 a of the attachment member 3 toward the proximal end side, and the outer peripheral portion 21 a of the protective tube 21 is provided on the outer peripheral portion 21 a. The guided portion 9 has an engaging portion 91 that is slidably guided along the elongated hole 80 when the relative position with the mounting member 3 is changed by engaging with the elongated hole 80 of the elongated member 8. Is protruding. At a position along the long hole 80 of the elongated member 8, there is an indicator 81 indicating the projection length of the protective tube 21 from the position of the engaging portion 91 of the guided portion 9, in this example, a display portion 81 on which a scale is displayed. It is provided so that the protruding length of the protective tube 21 can be grasped only by reading the scale of the engaging portion 91.

より具体的には、取り付け部材３の先端側フランジ３１の外周端部に外側に延びる支持板８２が溶接により固定されており、該支持板８２に一端支持された状態で前記長尺部材８が基端側に延設されている。また、係合部９１を先端に有する被案内部９は、保護管２１のフランジ２２の外周端部における前記支持板８２と同じ周方向位置に溶接により固定され、前記支持板８２と平行に突設されている。 More specifically, a support plate 82 extending outward is fixed to the outer peripheral end portion of the distal end side flange 31 of the attachment member 3 by welding, and the long member 8 is supported by the support plate 82 in one end. It extends to the base end side. The guided portion 9 having the engaging portion 91 at the tip is fixed by welding at the same circumferential position as the support plate 82 at the outer peripheral end of the flange 22 of the protective tube 21, and protrudes in parallel with the support plate 82. It is installed.

次に、図４及び図５に基づき、本発明の第２実施形態を説明する。 Next, based on FIG.4 and FIG.5, 2nd Embodiment of this invention is described.

本実施形態では、耐熱潤滑剤としてのグリスを供給するためのグリスアップ用リング４１が複数の環状シール部材４、４の間に介装されている。本例では、合計４つの環状シール部材４の真ん中、つまりグリスアップ用リング４１の先端側、基端側にそれぞれ２つの環状シール部材４が位置するように介装されている。尚、このように環状シール部材４、４の間にグリスアップ用リング４１を介装する形態以外に、環状シール部材４と環状凸部３３との間や、環状シール部材４と筒状本体５０先端部との間にグリスアップ用リング４１を介装することも可能である。ただし、各環状シール部材４にグリスを確実に供給する意味では環状シール部材間に介装することが好ましい。 In this embodiment, a grease-up ring 41 for supplying grease as a heat-resistant lubricant is interposed between the plurality of annular seal members 4 and 4. In this example, two annular seal members 4 are interposed so as to be located in the middle of the total four annular seal members 4, that is, on the distal end side and the proximal end side of the grease-up ring 41. In addition to the configuration in which the grease-up ring 41 is interposed between the annular seal members 4 and 4 as described above, between the annular seal member 4 and the annular convex portion 33, or between the annular seal member 4 and the cylindrical main body 50. It is also possible to interpose a grease-up ring 41 between the tip portion. However, it is preferable to interpose between the annular seal members in order to reliably supply the grease to each annular seal member 4.

グリスアップ用リング４１は、締め付け手段７の締め付けにより、環状シール部材４とともに、筒状本体５０の先端部と環状凸部３３との間で加圧されることになる。グリスアップ用リング４１は環状シール部材４と同様、軸方向に移動可能であるため、グリスアップ用リング４１が存在しても４つの環状シール部材４はすべて均一に加圧され、筒状本体３０内周面と保護管２１外周面との間が良好にシールされる。 The grease-up ring 41 is pressed between the distal end portion of the cylindrical main body 50 and the annular convex portion 33 together with the annular seal member 4 by the fastening of the fastening means 7. Since the grease-up ring 41 is movable in the axial direction similarly to the annular seal member 4, even if the grease-up ring 41 is present, all of the four annular seal members 4 are uniformly pressurized, and the cylindrical main body 30. The space between the inner peripheral surface and the outer peripheral surface of the protective tube 21 is well sealed.

このシール状態におけるグリスアップ用リング４１の位置に対応した筒状本体３０外周壁の位置には、該外周壁を貫通してグリスアップ用リング４１にグリスを供給するためのグリス供給ノズル４０が設けられている。このグリス供給ノズル４０から図示しない供給手段によりグリスを供給することで、環状シール部材４のシール性を継続的に高めることができ、測温対象である内部流体の漏洩をより確実に防止できるとともに、環状シール部材４の潤滑性が継続的に保持されることから、連結手段６により保護管２１をいつでも軸方向にスムーズに移動させることができ、環状シール部材の捻れや破れを確実に防止でき、環状シール部材４を確実に保護できる。 At the position of the outer peripheral wall of the cylindrical main body 30 corresponding to the position of the grease-up ring 41 in this sealed state, a grease supply nozzle 40 is provided for supplying the grease to the grease-up ring 41 through the outer peripheral wall. It has been. By supplying grease from the grease supply nozzle 40 by a supply means (not shown), the sealing performance of the annular seal member 4 can be continuously improved, and leakage of the internal fluid that is a temperature measurement target can be prevented more reliably. Since the lubricity of the annular seal member 4 is continuously maintained, the connecting tube 6 can smoothly move the protective tube 21 in the axial direction at any time, and the twist and tear of the annular seal member can be reliably prevented. The annular seal member 4 can be reliably protected.

また、本実施形態では、取り付け部材３の筒状本体３０外周壁における環状シール部材４装着位置より先端側の部位に、内周側の保護管２１との隙間Ｓ２に連通し、該隙間Ｓ２にパージ用の流体を供給するための流体供給ノズル３４が設けられている。この流体供給ノズル３４から図示しない供給手段により不活性ガスやスチーム等のパージ用流体を供給することで、内部流体による環状シール部材４の腐食等を防止して環状シール部材４を保護できるとともに、当該隙間Ｓ２の筒状本体３０内周面や保護管２１の外周面、環状凸部３３等へのスケール（コーク等）の堆積を防止でき、該スケールが保護管２１の軸方向への移動を阻害したり温度測定精度に悪影響を及ぼすことを未然に防止できる。また、緊急時に当該流体供給ノズル３４から隙間Ｓ２に対してコーキング材などを注入し、測温対象である内部流体の漏洩を阻止することができる。 Further, in the present embodiment, the portion of the mounting member 3 on the outer peripheral wall of the cylindrical main body 30 that is closer to the tip than the mounting position of the annular seal member 4 communicates with the clearance S2 between the inner peripheral protection tube 21 and the clearance S2. A fluid supply nozzle 34 for supplying a purge fluid is provided. By supplying a purge fluid such as an inert gas or steam from the fluid supply nozzle 34 by means of a supply means (not shown), the annular seal member 4 can be protected by preventing corrosion or the like of the annular seal member 4 due to internal fluid, Scale (coke etc.) can be prevented from accumulating on the inner peripheral surface of the cylindrical main body 30, the outer peripheral surface of the protective tube 21, the annular convex portion 33, etc. in the gap S 2, and the scale can move in the axial direction of the protective tube 21. It is possible to prevent obstructing or adversely affecting the temperature measurement accuracy. Further, in the event of an emergency, a caulking material or the like can be injected into the gap S2 from the fluid supply nozzle 34 to prevent leakage of the internal fluid that is the object of temperature measurement.

以上、本発明の実施形態について説明したが、本発明はこうした実施例に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる形態で実施し得ることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and can of course be implemented in various forms without departing from the gist of the present invention.

１温度測定装置
２温度計
３取り付け部材
３ａ外周部
４環状シール部材
５押圧部材
６連結手段
７締め付け手段
８長尺部材
９被案内部
２０シース熱電対
２１保護管
２１ａ外周部
２２フランジ
２２ｂ貫通孔
３０筒状本体
３１先端側フランジ
３２基端側フランジ
３２ｂ通孔
３３環状凸部
３４流体供給ノズル
４０グリス供給ノズル
４１グリスアップ用リング
５０筒状本体
５１フランジ
５１ａ通孔
５１ｂ貫通孔
６０螺軸
６１ナット
６１Ａコマ部材
７０螺軸
７１ナット
８０長穴
８１表示部
８２支持板
９１係合部
Ｓ１隙間
Ｓ２隙間 DESCRIPTION OF SYMBOLS 1 Temperature measuring device 2 Thermometer 3 Mounting member 3a Outer peripheral part 4 Annular seal member 5 Pressing member 6 Connecting means 7 Tightening means 8 Long member 9 Guided part 20 Sheath thermocouple 21 Protective tube 21a Outer part 22 Flange 22b Through-hole 30 Cylindrical body 31 Front side flange 32 Base end side flange 32b Through hole 33 Annular projection 34 Fluid supply nozzle 40 Grease supply nozzle 41 Grease-up ring 50 Cylindrical body 51 Flange 51a Through hole 51b Through hole 60 Screw shaft 61 Nut 61A Top member 70 Screw shaft 71 Nut 80 Elongated hole 81 Display part 82 Support plate 91 Engagement part S1 gap S2 gap

Claims

保護管付き温度計を有する温度測定装置において、
前記保護管が軸方向に移動可能に挿着される取り付け部材を設けるとともに、
該取り付け部材と前記保護管との隙間に単又は複数の環状シール部材を装着し、
該環状シール部材を軸方向に押圧保持して前記隙間をシールする押圧部材を設け、
前記取り付け部材の外周部と基端側に延出している前記保護管の外周部とを、互いの軸方向に沿った相対位置を変更可能に連結する連結手段を設けてなり、
該連結手段により前記相対位置を変更することで、前記取り付け部材の先端側に突出する前記保護管の当該突出長さを調整可能とした温度測定装置であって、
前記環状シール部材を、前記取り付け部材の基端側から前記保護管との隙間に挿着するとともに、前記押圧部材を、同じく基端側から前記隙間に挿着し、
前記押圧部材の前記隙間から基端側に延出している外周部のフランジと、前記取り付け部材の外周部のフランジとの間に締め付け手段を設け、該締め付け手段の締め付けにより前記押圧部材が取り付け部材側に軸方向に沿って移動して前記環状シール部材を押圧保持してなり、
前記連結手段は、前記取り付け部材の外周部のフランジから基端側に延設され、且つ前記押圧部材のフランジに形成された貫通孔及び前記保護管の外周部のフランジに形成された貫通孔の双方に挿通される螺軸と、該螺軸に装着され、前記保護管のフランジを挟み込んで該フランジを前記螺軸に固定するナットとよりなることを特徴とする温度測定装置。 In the temperature measuring device having a protective tube with a thermometer,
While providing an attachment member to which the protective tube is movably inserted in the axial direction,
A single or a plurality of annular seal members are mounted in the gap between the mounting member and the protective tube,
A pressing member for pressing and holding the annular seal member in the axial direction to seal the gap is provided;
A connecting means for connecting the outer peripheral portion of the attachment member and the outer peripheral portion of the protective tube extending to the proximal end side so as to be able to change the relative position along the axial direction of each other;
By changing the relative positions by the connecting means, and an adjustable and the temperature measuring device the projection length of the protective tube protruding tip side of the mounting member,
The annular seal member is inserted into the gap with the protective tube from the base end side of the mounting member, and the pressing member is also inserted into the gap from the base end side,
A fastening means is provided between the outer peripheral flange extending from the gap of the pressing member to the proximal end side and the outer peripheral flange of the mounting member, and the pressing member is attached to the mounting member by tightening the fastening means. It moves along the axial direction to the side and presses and holds the annular seal member,
The connecting means includes a through hole formed on the flange of the pressing member and a through hole formed on the flange of the outer periphery of the protective member. A temperature measuring device comprising: a screw shaft that is inserted through both sides; and a nut that is attached to the screw shaft and sandwiches the flange of the protective tube and fixes the flange to the screw shaft.

保護管付き温度計を有する温度測定装置において、
前記保護管が軸方向に移動可能に挿着される取り付け部材を設けるとともに、
該取り付け部材と前記保護管との隙間に単又は複数の環状シール部材を装着し、
該環状シール部材を軸方向に押圧保持して前記隙間をシールする押圧部材を設け、
前記取り付け部材の外周部と基端側に延出している前記保護管の外周部とを、互いの軸方向に沿った相対位置を変更可能に連結する連結手段を設けてなり、
該連結手段により前記相対位置を変更することで、前記取り付け部材の先端側に突出する前記保護管の当該突出長さを調整可能とした温度測定装置であって、
前記取り付け部材の外周部から基端側に向けて、軸方向に沿った長穴を有する長尺部材を延設するとともに、前記取り付け部材の基端側に延出している前記保護管の外周部に、前記長尺部材の長穴に係合して取り付け部材との相対位置が変更された際に該長穴に沿って摺動案内される係合部を有する被案内部を突設し、前記長尺部材の前記長穴に沿った位置に、前記被案内部の係合部の位置から前記保護管の突出長さを示す指標が表示される表示部を設けてなることを特徴とする温度測定装置。 In the temperature measuring device having a protective tube with a thermometer,
While providing an attachment member to which the protective tube is movably inserted in the axial direction,
A single or a plurality of annular seal members are mounted in the gap between the mounting member and the protective tube,
A pressing member for pressing and holding the annular seal member in the axial direction to seal the gap is provided;
A connecting means for connecting the outer peripheral portion of the attachment member and the outer peripheral portion of the protective tube extending to the proximal end side so as to be able to change the relative position along the axial direction of each other;
By changing the relative positions by the connecting means, and an adjustable and the temperature measuring device the projection length of the protective tube protruding tip side of the mounting member,
An elongate member having an elongated hole along the axial direction extends from the outer peripheral portion of the mounting member toward the base end side, and the outer peripheral portion of the protective tube extends to the base end side of the mounting member A guided portion having an engaging portion that is slidably guided along the elongated hole when the relative position with the mounting member is changed by engaging with the elongated hole of the elongated member; A display unit for displaying an index indicating the protruding length of the protective tube from the position of the engaging portion of the guided portion is provided at a position along the elongated hole of the elongated member. Temperature measuring device.

保護管付き温度計を有する温度測定装置において、
前記保護管が軸方向に移動可能に挿着される取り付け部材を設けるとともに、
該取り付け部材と前記保護管との隙間に単又は複数の環状シール部材を装着し、
該環状シール部材を軸方向に押圧保持して前記隙間をシールする押圧部材を設け、
前記取り付け部材の外周部と基端側に延出している前記保護管の外周部とを、互いの軸方向に沿った相対位置を変更可能に連結する連結手段を設けてなり、
該連結手段により前記相対位置を変更することで、前記取り付け部材の先端側に突出する前記保護管の当該突出長さを調整可能とした温度測定装置であって、
前記環状シール部材の保護管との接触面に耐熱潤滑剤を塗布してなることを特徴とする温度測定装置。 In the temperature measuring device having a protective tube with a thermometer,
While providing an attachment member to which the protective tube is movably inserted in the axial direction,
A single or a plurality of annular seal members are mounted in the gap between the mounting member and the protective tube,
A pressing member for pressing and holding the annular seal member in the axial direction to seal the gap is provided;
A connecting means for connecting the outer peripheral portion of the attachment member and the outer peripheral portion of the protective tube extending to the proximal end side so as to be able to change the relative position along the axial direction of each other;
By changing the relative positions by the connecting means, and an adjustable and the temperature measuring device the projection length of the protective tube protruding tip side of the mounting member,
A temperature measuring device comprising a heat-resistant lubricant applied to a contact surface of the annular seal member with a protective tube.

前記耐熱潤滑剤としてのグリスを供給するためのグリスアップ用リングを前記複数の環状シール部材の間に介装するとともに、前記取り付け部材の外周壁の前記グリスアップ用リングに対応した位置に、該外周壁を貫通して前記グリスアップ用リングにグリスを供給するためのグリス供給ノズルを設けてなる請求項３記載の温度測定装置。 A grease-up ring for supplying grease as the heat-resistant lubricant is interposed between the plurality of annular seal members, and at a position corresponding to the grease-up ring on the outer peripheral wall of the mounting member, The temperature measuring device according to claim 3, further comprising a grease supply nozzle for supplying grease to the ring for grease up through an outer peripheral wall.

前記取り付け部材の外周壁に、前記保護管との隙間であって前記環状シール部材の装着位置よりも先端側の隙間に連通し、該隙間にパージ用の流体を供給するための流体供給ノズルを設けてなる請求項１〜４の何れか１項に記載の温度測定装置。
A fluid supply nozzle that communicates with the outer peripheral wall of the attachment member, which is a gap between the protective tube and a tip side of the annular seal member, and supplies a purge fluid to the gap. The temperature measuring device according to any one of claims 1 to 4 , wherein the temperature measuring device is provided.