JP5063119B2 - Condition detection device - Google Patents

Condition detection device Download PDF

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JP5063119B2
JP5063119B2 JP2007001671A JP2007001671A JP5063119B2 JP 5063119 B2 JP5063119 B2 JP 5063119B2 JP 2007001671 A JP2007001671 A JP 2007001671A JP 2007001671 A JP2007001671 A JP 2007001671A JP 5063119 B2 JP5063119 B2 JP 5063119B2
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pipe
temperature
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秀高 西田
堅也 永久
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Chugoku Electric Power Co Inc
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Description

本発明は機器の作動状態や損傷状態を検知するための状態検知装置に係り、特に高温となる部位を有する機器の作動状態や損傷状態を検知するものに関する。   The present invention relates to a state detection device for detecting an operation state and a damage state of a device, and particularly relates to a device for detecting an operation state and a damage state of a device having a part that becomes high in temperature.

従来より、発電所等のプラント内において高温環境に長時間曝される配管に各種センサを設置して、配管の損傷状態を監視する技術が提案されている（例えば、特許文献１又は２）。   Conventionally, a technique has been proposed in which various sensors are installed in a pipe that is exposed to a high temperature environment for a long time in a plant such as a power plant to monitor the damaged state of the pipe (for example, Patent Document 1 or 2).

特許文献１には、光ファイバ温度レーザに代表される分布型温度センサを用いて高温ガス配管表面温度を監視することにより、内部配管の磨耗による減肉や断熱材の損傷などの損傷発生初期の兆候を検知する状態検知装置が開示されている。   In Patent Document 1, by monitoring the surface temperature of a high-temperature gas pipe using a distributed temperature sensor typified by an optical fiber temperature laser, the initial occurrence of damage such as thinning due to internal pipe wear or damage to a heat insulating material is disclosed. A state detection device for detecting signs is disclosed.

また、特許文献２には、熱疲労を受ける配管に、外周部から円孔を加工することによって設けた薄肉部に熱疲労損傷を集中させ、この薄肉部の大きさをポテンシャル法により検出したり、薄肉部の熱疲労によるき裂の貫通を湿度検出センサや温度測定センサにより検知することによって、厚肉部の熱疲労損傷の大きさを評価し、配管の熱疲労に対する健全性を、プラント稼動中にオンラインで高精度に監視する状態検知装置が開示されている。
特開平１０−２０７５３４号公報 特開平９−３２４９００号公報 Further, in Patent Document 2, thermal fatigue damage is concentrated on a thin portion provided by machining a circular hole from the outer peripheral portion of a pipe that undergoes thermal fatigue, and the size of the thin portion is detected by a potential method. By detecting the penetration of cracks due to thermal fatigue in thin-walled parts with a humidity detection sensor or temperature measurement sensor, the magnitude of thermal fatigue damage in thick-walled parts is evaluated, and the soundness of pipes against thermal fatigue is evaluated for plant operation. A state detection device that monitors online with high accuracy is disclosed.
Japanese Patent Laid-Open No. 10-207534 JP-A-9-324900

しかしながら、特許文献１又は２に記載される配管状態検知装置を複数の配管に設置してそれらの損傷状態を監視する場合には、監視する配管の数が多くなるほど、各配管に設置された装置から送信されるデータの量も増加するので、それらデータを受信するデータ処理装置のデータ処理量も増加してしまう。このため、データ処理装置に要求されるデータ処理能力が高くなり、設備コストが嵩んでしまう。   However, when the pipe state detection device described in Patent Document 1 or 2 is installed in a plurality of pipes and their damage state is monitored, as the number of pipes to be monitored increases, the apparatus installed in each pipe Since the amount of data transmitted from the network also increases, the data processing amount of the data processing apparatus that receives the data also increases. For this reason, the data processing capability requested | required of a data processor becomes high, and installation cost will increase.

また各装置を作動させるために電源供給ラインを複数設けなければならず、配線が煩雑になるおそれがある。さらに、設置する装置の数が多くなるほど消費電力も増加し、電気代が嵩んでしまう。   Further, a plurality of power supply lines must be provided in order to operate each device, and wiring may be complicated. Furthermore, as the number of devices to be installed increases, the power consumption increases and the electricity cost increases.

本発明は、上記の点に鑑みてなされたものであり、簡易な構成で、外部から電源を供給することなく、作動によって高温となる部位を有する機器の作動状態や損傷状態に関する情報のうち状態検知に必要な情報のみを外部へ送信可能な状態検知装置を提供することを目的とする。   The present invention has been made in view of the above points, and is a state of information on the operating state and the damaged state of a device having a part that becomes hot by operation without supplying power from the outside with a simple configuration. An object of the present invention is to provide a state detection device capable of transmitting only information necessary for detection to the outside.

上記の目的を達成するため、作動時に昇温する部位を有する機器の作動状態や損傷状態を検知するための状態検知装置であって、
前記機器の作動状態や損傷状態を示す信号である検知信号を出力するセンサと、
前記検知信号に基づき検知される、前記機器の作動状態や損傷状態の検知結果をデータ処理装置へ送信するデータ送信部と、
前記機器の作動時に昇温する部位に設けられ、前記部位が昇温した場合にのみ、前記センサ及び前記データ送信部にこれらを駆動させる電力を供給する、熱電変換素子と
を備えることを特徴とする（第１の発明）。 In order to achieve the above object, a state detection device for detecting an operation state or a damage state of a device having a portion that is heated during operation,
A sensor that outputs a detection signal that is a signal indicating an operating state or a damaged state of the device;
A data transmission unit that is detected based on the detection signal, and that transmits a detection result of the operation state or damage state of the device to a data processing device;
A thermoelectric conversion element that is provided in a part that is heated when the device is operated , and that supplies electric power for driving the sensor and the data transmission unit only when the part is heated. (First invention).

本発明による状態検知装置によれば、機器が作動により高温となった場合にのみ、その部位に取り付けられた熱電変換素子によって検知部に電源が供給されて、検知部により検知された機器の作動状態や損傷状態のデータがデータ処理装置へ送信される。これにより、データ処理装置は、高温となった作動中の機器の作動状態や損傷状態に関するデータ（つまり、作動状態や損傷状態を監視する上で必要なデータ）のみを受信し、低温である休止中の機器からの不必要なデータを受信することがないので、データ処理量を軽減される。さらに、データ処理能力の高いデータ処理装置を設置する必要もないので設備コストも軽減できる。   According to the state detection device of the present invention, only when the device becomes hot due to operation, power is supplied to the detection unit by the thermoelectric conversion element attached to the part, and the operation of the device detected by the detection unit Status and damage status data is transmitted to the data processing device. As a result, the data processing device receives only data related to the operating state and damaged state of the operating device that has become hot (that is, data necessary for monitoring the operating state and damaged state), and is in a low temperature pause. Since unnecessary data is not received from the inside device, the amount of data processing is reduced. Furthermore, since it is not necessary to install a data processing device with high data processing capacity, the equipment cost can be reduced.

また、本発明による状態検知装置によれば、熱電変換素子により、装置内の検知部が作動するための電源がまかなわれるので電気代がからない。これにともない、外部から装置へ電源を供給するための電源ラインを設ける必要がなく、電源系統の設計及び施工を省略できる。   Moreover, according to the state detection apparatus by this invention, since the power supply for the detection part in an apparatus to operate | move is provided by the thermoelectric conversion element, an electricity bill is not charged. Accordingly, it is not necessary to provide a power line for supplying power to the apparatus from the outside, and the design and construction of the power system can be omitted.

第２の発明は、第１の発明において、前記データ送信部は、前記検知結果を無線で送信することを特徴とする。
本発明による状態検知装置によれば、電源ラインとともに、取得されたデータを転送するための情報通信ラインも設ける必要がない。すなわち、外部と状態検知装置とを接続する線はないのでスタンドアローンで作動できる。 According to a second aspect, in the first aspect, the data transmission unit transmits the detection result wirelessly.
According to the state detection device of the present invention, it is not necessary to provide an information communication line for transferring acquired data together with the power supply line. That is, since there is no line connecting the outside and the state detection device, it can operate in a stand-alone manner.

本発明によれば、簡易な構成で、外部から電源を供給することなく、作動によって高温となる部位を有する機器の作動状態や損傷状態に関する情報のうち状態検知に必要な情報のみを外部へ送信可能な状態検知装置を提供できる。   According to the present invention, only information necessary for state detection is transmitted to the outside with information of an operation state or a damage state of a device having a part that becomes high temperature by operation without supplying power from the outside with a simple configuration. A possible state detection device can be provided.

本発明が蒸気配管の状態検知に適用された場合の実施形態について説明する。
図１は、本実施形態の配管状態検知装置１０が配管１２に設置された状態を示す断面図である。また、図２は、各配管１２に設置された配管状態検知装置１０を含む状態監視システムの全体構成図である。 An embodiment when the present invention is applied to state detection of a steam pipe will be described.
FIG. 1 is a cross-sectional view showing a state in which the pipe state detection device 10 of the present embodiment is installed in the pipe 12. FIG. 2 is an overall configuration diagram of a state monitoring system including the pipe state detection device 10 installed in each pipe 12.

図１に示すように、火力発電プラントなどに設置される主蒸気管や再熱蒸気管などの配管１２には、内部に高温蒸気（約５００℃）が流れており、熱の散逸を防止するともに作業者の安全を確保するために、配管１２外側には保温材１４と外装板１６が被覆してある。本実施形態に係る配管状態検知装置１０は、このような高温に曝される配管１２の損傷状態やその内部を流れる蒸気の状態を監視するためのものであり、電源部２０と、検知部２５とを備えている。   As shown in FIG. 1, high-temperature steam (about 500 ° C.) flows through a pipe 12 such as a main steam pipe or a reheat steam pipe installed in a thermal power plant or the like to prevent heat dissipation. In both cases, in order to ensure the safety of the operator, a heat insulating material 14 and an exterior plate 16 are coated on the outside of the pipe 12. The pipe state detection device 10 according to the present embodiment is for monitoring the damage state of the pipe 12 exposed to such a high temperature and the state of steam flowing through the pipe 12. And.

電源部２０は、例えば、プラント運転時に高温となる表面に取り付けられた熱電変換素子２２と、定電圧回路２４とを備える。
熱電変換素子２２は、例えば、ｎ型熱電半導体とｐ型熱電半導体面と接合して構成された素子両面の温度差に応じてゼーベック効果により発電する。なお、熱電変換素子２２は一方の面が他方の面よりも高温となったときに、所定の極性の直流電流を生成する。以下、ここの低温側の面を低温接触面といい、高温側の面を高温接触面という。 The power supply unit 20 includes, for example, a thermoelectric conversion element 22 attached to a surface that becomes high temperature during plant operation, and a constant voltage circuit 24.
The thermoelectric conversion element 22 generates power by the Seebeck effect in accordance with, for example, a temperature difference between both sides of an element formed by joining an n-type thermoelectric semiconductor and a p-type thermoelectric semiconductor surface. The thermoelectric conversion element 22 generates a direct current having a predetermined polarity when one surface is hotter than the other surface. Hereinafter, the low temperature side surface is referred to as a low temperature contact surface, and the high temperature side surface is referred to as a high temperature contact surface.

同図に示すように、熱電変換素子２２の設置については、保温材１４の一部を取り除いて、高温接触面を配管１２の外側表面に接触させ、低温接触面を外気に曝す。すなわち、配管１２内に高温蒸気が流通した際には、熱電変換素子２２の高温接触面は高温（約５００℃）となり、外気と接触する低温接触面は外気温（４０〜５０℃）となり、それらの温度差により発電がなされることになる。なお、熱電変換素子２２を設置するために保温材１４の一部を取り除いても、熱電変換素子２２自体は断熱性の高い材料で作られているため、その保温材１４の一部が取り除かれた領域から極端に熱が散逸されることはない。   As shown in the figure, regarding the installation of the thermoelectric conversion element 22, a part of the heat insulating material 14 is removed, the high temperature contact surface is brought into contact with the outer surface of the pipe 12, and the low temperature contact surface is exposed to the outside air. That is, when high-temperature steam circulates in the pipe 12, the high-temperature contact surface of the thermoelectric conversion element 22 becomes high temperature (about 500 ° C), and the low-temperature contact surface that comes into contact with the outside air becomes outside air temperature (40 to 50 ° C). Electricity is generated by the temperature difference. Even if a part of the heat insulating material 14 is removed in order to install the thermoelectric conversion element 22, since the thermoelectric conversion element 22 itself is made of a highly heat insulating material, a part of the heat insulating material 14 is removed. No heat is dissipated from the exposed area.

なお、低温接触面上には、例えば、放熱板やヒートパイプなどの熱交換器を設置することで冷却効率を向上させて、熱電変換素子２２の両面間の温度差を大きくし、発電量を向上させてもよい。   On the low-temperature contact surface, for example, a heat exchanger such as a heat sink or a heat pipe is installed to improve the cooling efficiency, increase the temperature difference between both surfaces of the thermoelectric conversion element 22, and reduce the power generation amount. It may be improved.

また、使用する熱電変換素子２２の耐熱温度が、配管１２の外側表面温度よりも低い場合には、保温材１４の厚み方向の温度勾配を測定しておき、熱電変換素子２２の耐熱温度よりも下回る位置に、熱電変換素子２２の高温接触面が位置するように設置してもよい。   Moreover, when the heat-resistant temperature of the thermoelectric conversion element 22 to be used is lower than the outer surface temperature of the pipe 12, the temperature gradient in the thickness direction of the heat insulating material 14 is measured, and the heat-resistant temperature of the thermoelectric conversion element 22 is higher. You may install so that the high temperature contact surface of the thermoelectric conversion element 22 may be located in the lower position.

定電圧回路２４は、熱電変換素子２２により生成された直流電圧を、安定的に定常な電圧として供給するためのものであり、後述する検知部２５に電源を供給する。なお、検知部２５が交流で作動する場合には、検知部２５との間にインバータを設置してもよい。これら定電圧回路２４やインバータが熱に弱い場合には、外気温下の外装板１６付近に設置する。
検知部２５は、センサ３０とデータ送信部４０とにより構成される。 The constant voltage circuit 24 is for supplying the DC voltage generated by the thermoelectric conversion element 22 as a stable steady voltage, and supplies power to the detection unit 25 described later. In addition, when the detection unit 25 operates with alternating current, an inverter may be installed between the detection unit 25 and the detection unit 25. When the constant voltage circuit 24 and the inverter are vulnerable to heat, the constant voltage circuit 24 and the inverter are installed near the exterior plate 16 at an outside temperature.
The detection unit 25 includes a sensor 30 and a data transmission unit 40.

センサ３０は、配管１２内の蒸気の状態や配管１２の損傷状態を検知するためものである。センサ３０には、例えば、高温時において配管１２に生じる亀裂を測定するための磁気センサ或いはアコースティックエミッションセンサ、配管１２の肉厚測定及びき裂の有無を検出するための超音波センサ、配管のひずみを測定するためのひずみセンサ、配管１２温度を測定するための熱電対、振動を測定するための加速度センサ等がその用途に応じて使用される。なお、これらセンサ３０は、配管１２の熱の影響を直接受けることになるので耐熱用であることが好ましい。これらセンサ３０のうち、作動に電源が必要なものは、定電圧回路２４やインバータと電源ラインで接続される。   The sensor 30 is for detecting the state of steam in the pipe 12 and the damaged state of the pipe 12. Examples of the sensor 30 include a magnetic sensor or an acoustic emission sensor for measuring a crack generated in the pipe 12 at a high temperature, an ultrasonic sensor for measuring the thickness of the pipe 12 and the presence or absence of a crack, and a strain of the pipe. A strain sensor for measuring the temperature, a thermocouple for measuring the temperature of the pipe 12, an acceleration sensor for measuring vibration, and the like are used depending on the application. Note that these sensors 30 are preferably heat resistant because they are directly affected by the heat of the pipe 12. Among these sensors 30, those that require a power source for operation are connected to the constant voltage circuit 24 and the inverter through a power line.

センサ３０は、熱電変換素子２２を設置するために保温材１４が取り除かれた領域の影響を受けないように、その領域から所定距離離れた位置において配管１２に設置される。具体的には、例えば、保温材１４を剥がした後、配管１２表面に設置し、再び保温材１４をその上から被せる。   The sensor 30 is installed in the pipe 12 at a position away from the region by a predetermined distance so as not to be affected by the region from which the heat insulating material 14 is removed in order to install the thermoelectric conversion element 22. Specifically, for example, after the heat insulating material 14 is peeled off, the heat insulating material 14 is installed on the surface of the pipe 12 and covered with the heat insulating material 14 again.

各センサ３０からはデータ送信部４０へ信号ラインが接続されており、各センサ３０による検知信号は、それらの信号ラインを通じてデータ送信部４０に送られる。   A signal line is connected from each sensor 30 to the data transmission unit 40, and a detection signal from each sensor 30 is sent to the data transmission unit 40 through these signal lines.

データ送信部４０では、各センサ３０から送られてきた電気信号を増幅し、増幅された電気信号をデータ処理装置５０に無線で送信する。なお、データ送信部４０には、前述で説明したとおり、配管１２に蒸気が流通して高温になった時に電源部２０から電源が供給されるようになっている。また、データ送信部４０は、高温の配管１２の熱の影響を受けないように、例えば、外装板１６の表面などの配管１２からの熱の影響の少ない位置にバンド等で固定される。   The data transmission unit 40 amplifies the electrical signal sent from each sensor 30 and transmits the amplified electrical signal to the data processing device 50 wirelessly. As described above, the power is supplied from the power supply unit 20 to the data transmission unit 40 when steam flows through the pipe 12 and the temperature becomes high. Moreover, the data transmission part 40 is fixed with a band etc. in the position where there is little influence of the heat from the piping 12, such as the surface of the exterior board 16, so that it may not be influenced by the heat of the high temperature piping 12. FIG.

次に、このような配管状態検知装置１０から送信されるデータの通信経路について説明する。
図２に示すように、各配管１２の夫々に設置された配管状態検知装置１０から送信されるデータは、先ず、無線にてデータ処理装置５０で受信される。 Next, a communication path of data transmitted from such a pipe state detection device 10 will be described.
As shown in FIG. 2, data transmitted from the pipe state detection device 10 installed in each of the pipes 12 is first received by the data processing device 50 wirelessly.

このとき、上述のように、検知部２５は、熱電変換素子２２の発電した電力を電源としてデータを送信するので、データ処理装置５０では、複数の配管１２の夫々に設置された配管状態検知装置１０のうち、高温になった配管１２（つまり、蒸気が流通して蒸気状態を検知することが必要であり、また、熱により損傷が進行しやすい配管１２）に設置される配管状態検知装置１０から送信されるデータのみを受信し、低温の配管１２（つまり、蒸気が流通しないため蒸気状態を検知する必要がなく、また、熱による損傷の進行がないと考えられる配管１２）に設置された配管状態検知装置１０から不必要なデータを受信することがない。   At this time, as described above, the detection unit 25 transmits data using the power generated by the thermoelectric conversion element 22 as a power source. Therefore, in the data processing device 50, the pipe state detection device installed in each of the plurality of pipes 12. 10, a pipe state detection device 10 installed in a pipe 12 that has become hot (that is, a pipe 12 that is required to detect a vapor state through circulation of steam and that is easily damaged by heat). Received only from the data, installed in the low-temperature pipe 12 (that is, there is no need to detect the steam state because the steam does not flow, and there is no progress of damage due to heat) Unnecessary data is not received from the pipe state detection device 10.

このようにしてデータ処理装置５０に受信されたデータは、その後、例えば、インターネット等の情報通信網を通じて遠隔地にあるデータ監視装置６０へ転送される。   The data received by the data processing device 50 in this way is then transferred to the remote data monitoring device 60 through an information communication network such as the Internet.

以上説明したように、本実施形態による配管状態検知装置１０によれば、蒸気の流通により高温となる配管１２に設置される熱電変換素子２２を備える電源部２０と、その近傍に設置される検知部２５とから構成されることにより、配管１２内に蒸気が流通することにより高温となった場合にのみ、その部位に取り付けられた熱電変換素子２２によって検知部２５に電源が供給されて、センサ３０により検知された配管内の蒸気状態や損傷状態のデータがデータ送信部４０からデータ処理装置５０へ送信される。これにより、データ処理装置５０は、高温となった配管１２の蒸気状態や損傷状態に関するデータのみを受信し、低温の配管１２からの不必要なデータを受信することがないので、データ処理量を軽減される。さらに、データ処理能力の高いデータ処理装置５０を設置する必要もないので設備コストも軽減できる。   As described above, according to the pipe state detection device 10 according to the present embodiment, the power supply unit 20 including the thermoelectric conversion element 22 installed in the pipe 12 that becomes high temperature due to the circulation of steam, and the detection installed in the vicinity thereof. By being configured from the unit 25, the power is supplied to the detection unit 25 by the thermoelectric conversion element 22 attached to the part only when the temperature becomes high due to the circulation of steam in the pipe 12, and the sensor Data on the steam state and damage state in the pipe detected by 30 is transmitted from the data transmission unit 40 to the data processing device 50. As a result, the data processing device 50 receives only data relating to the steam state and damage state of the pipe 12 that has become high temperature, and does not receive unnecessary data from the low temperature pipe 12. It is reduced. Furthermore, since it is not necessary to install a data processing device 50 having a high data processing capability, the equipment cost can be reduced.

また、熱電変換素子２２を備えることにより、配管１２の表面と外気温との温度差により発電され、配管状態検知装置１０内の電源がまかなわれるので電気代がからない。これにともない、外部から配管状態検知装置１０へ電源を供給するための電源ラインを設ける必要がなく、電源系統の設計及び施工を省略できる。   Moreover, since the thermoelectric conversion element 22 is provided, electric power is generated due to a temperature difference between the surface of the pipe 12 and the outside air temperature, and the power supply in the pipe state detection device 10 is covered, so there is no electricity bill. Accordingly, it is not necessary to provide a power supply line for supplying power from the outside to the pipe state detection device 10, and design and construction of the power supply system can be omitted.

また、本実施形態による配管状態検知装置１０によれば、検知部２５で検知された検知結果を、データ処理装置５０へ無線で送信することにより、配管状態検知装置１０からデータ処理装置５０までの、データを転送するための情報通信ラインも設ける必要がない。すなわち、外部と配管状態検知装置１０とを接続する線はないのでスタンドアローンで作動できる。   In addition, according to the pipe state detection device 10 according to the present embodiment, the detection result detected by the detection unit 25 is wirelessly transmitted to the data processing device 50, so that the pipe state detection device 10 to the data processing device 50 can be transmitted. It is not necessary to provide an information communication line for transferring data. That is, since there is no line connecting the outside and the pipe state detection device 10, it can operate in a stand-alone manner.

なお、本実施形態による配管状態検知装置１０によれば、蒸気流通時に高温となる配管１２に設置して、配管１２の蒸気状態や損傷状態を監視することに用いたが、これに限らず、作動時に高温となる部位を有する機器の作動状態や劣化状態をセンサで監視することであれば、どのようなものにでも適用できる。   In addition, according to the pipe state detection device 10 according to the present embodiment, the pipe state detection apparatus 10 is installed in the pipe 12 that becomes high temperature during steam circulation, and is used for monitoring the steam state and the damage state of the pipe 12, but not limited thereto. The present invention can be applied to any device as long as the operation state or deterioration state of a device having a portion that becomes high temperature during operation is monitored by a sensor.

本実施形態の配管状態検知装置１０が配管１２に設置された状態を示す断面図である。It is sectional drawing which shows the state in which the piping state detection apparatus 10 of this embodiment was installed in the piping 12. FIG. 各配管１２に設置された配管状態検知装置１０を含む状態監視システムの全体構成図である。1 is an overall configuration diagram of a state monitoring system including a pipe state detection device 10 installed in each pipe 12. FIG.

符号の説明Explanation of symbols

１０ 配管状態検知装置
１２ 配管
１４ 保温材
１６ 外装板
２０ 電源部
２４ 定電圧回路
２５ 検知部
２２ 熱電変換素子
３０ センサ
４０ データ送信部
５０ データ処理装置 DESCRIPTION OF SYMBOLS 10 Piping state detection apparatus 12 Piping 14 Insulation material 16 Exterior plate 20 Power supply part 24 Constant voltage circuit 25 Detection part 22 Thermoelectric conversion element 30 Sensor 40 Data transmission part 50 Data processing apparatus

Claims (2)

作動時に昇温する部位を有する機器の作動状態や損傷状態を検知するための状態検知装置であって、
前記機器の作動状態や損傷状態を示す信号である検知信号を出力するセンサと、
前記検知信号に基づき検知される、前記機器の作動状態や損傷状態の検知結果をデータ処理装置へ送信するデータ送信部と、
前記機器の作動時に昇温する部位に設けられ、前記部位が昇温した場合にのみ、前記センサ及び前記データ送信部にこれらを駆動させる電力を供給する、熱電変換素子と
を備えることを特徴とする状態検知装置。 A state detection device for detecting an operating state or a damaged state of a device having a temperature rising portion during operation,
A sensor that outputs a detection signal that is a signal indicating an operating state or a damaged state of the device;
A data transmission unit that is detected based on the detection signal, and that transmits a detection result of the operation state or damage state of the device to a data processing device;
A thermoelectric conversion element that is provided in a part that is heated when the device is operated , and that supplies electric power for driving the sensor and the data transmission unit only when the part is heated. A state detection device. 前記データ送信部は、前記検知結果を無線で送信することを特徴とする請求項１に記載の状態検知装置。   The state detection apparatus according to claim 1, wherein the data transmission unit wirelessly transmits the detection result.
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