JP2008070328A - Structure of object to be detected - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately detect vibration level and temperature level by preventing accumulation of rain water and foreign substances in a recessed part. <P>SOLUTION: A plurality of recessed parts 4, 5 and 6 with which a detector 3 of a sensor 2 for detecting the vibration level and temperature level engages are formed in the outer surface of a steam trap 1. The recessed part 4 is formed in the upper and outer surface of the steam trap 1, the recessed part 5 is formed in the side and outer surface on the front side of the steam trap 1, and the recessed part 6 is formed in the side and outer surface on the back side of the steam trap 1. Discharge grooves 4b and 4c are made to open obliquely downward, from a depth wall 4a of the recessed part 4 to the front side and back side; a discharge groove 5b is made to open vertically downward from a depth wall 5a of the recessed part 5; and a discharge groove 6b is made to open vertically downward, from a depth wall 6a of the recessed part 6. The rain water and foreign substances flow into the recessed parts 4, 5 and 6 flow down out of the recessed parts 4, 5 and 6 through the discharge grooves 4b, 4c, 5b and 6b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The quality of the operation of the valve such as the steam trap and the rotating shaft can be confirmed by detecting the vibration level and the temperature level with a vibration sensor or a temperature sensor. The present invention relates to an improvement in the structure of an object to be detected such as a valve such as a steam trap or a rotating shaft, which should be checked for good operation by pressing a vibration sensor or a temperature sensor.

  The detection part of the vibration sensor or the temperature sensor has a conical shape and its cross-sectional area decreases toward the tip, and the tip part pressed against the object to be detected is often extremely small with respect to the measurement surface of the object to be detected. Therefore, there is a problem that the vibration level and temperature level cannot be detected accurately. This is because the state and position of the detection unit pressed against the object to be detected vary depending on the state of attachment of the object to be detected and the measurer, or the detection unit is inclined with respect to the object to be detected during measurement. This is because the detected object slides and moves. Therefore, conventionally, by forming a recess in which the detection part of the vibration sensor or temperature sensor fits on the outer surface of the object to be detected, the pressed state and position of the object to be detected and the detection part are attached to the object to be detected. In addition, the detection unit is kept constant regardless of the measurement person, and the detection unit is not tilted with respect to the detection object or does not slide on the detection object during the measurement.

However, in the above conventional ones, rainwater accumulates in the recesses and rust is generated or foreign substances such as dust accumulate, so it is impossible to completely prevent changes in the pressing state of the detection unit and inclination and slippage. There was room for.
Japanese Utility Model Publication No. 63-118522

  The problem to be solved is to make it possible to accurately detect the vibration level and temperature level so that rainwater and foreign matter do not accumulate in the recess.

  According to the present invention, in a detection object that detects a vibration or temperature level by pressing a detection unit of a vibration sensor or a temperature sensor on an outer surface, the detection unit of the vibration sensor or the temperature sensor is fitted on the outer surface of the detection object. In the structure of the object to be detected, a concave portion is formed, and a discharge groove is opened downward from the back wall of the concave portion.

  In the present invention, rainwater or foreign matter that has flowed into the recess flows down to the outside of the recess through the discharge groove, and since rainwater and foreign matter do not accumulate in the recess, it is possible to completely prevent changes in the pressing state of the detection unit, inclination, and slipping, This produces an excellent effect that the vibration level and temperature level can be accurately detected.

  The structure of the object to be detected according to the present invention is such that a recess is formed on the outer surface of the object to be detected and the detection part of the vibration sensor or temperature sensor is fitted, and a discharge groove is opened downward from the inner wall of the recess. It is. Therefore, rainwater and foreign matter that have flowed into the recess flow down to the outside of the recess through the discharge groove, and rainwater and foreign matter do not accumulate in the recess. For this reason, changes in the pressing state of the detection unit, tilting and slipping can be completely prevented, and the vibration level and temperature level can be accurately detected.

  An embodiment showing a specific example of the above technical means will be described (see FIGS. 1 and 2). A plurality of recesses 4, 5, and 6 are formed on the outer surface of the steam trap 1 as an object to be detected, in which the detection unit 3 of the sensor 2 that detects the vibration level and the temperature level is fitted. The concave portion 4 is formed on the upper outer surface of the steam trap 1, the concave portion 5 is formed on the side outer surface on the front side of the steam trap 1, and the concave portion 6 is formed on the side outer surface on the back side of the steam trap 1. Normally, the vibration level and temperature level of the steam trap 1 are detected by fitting the detection unit 3 of the sensor 2 into the recess 4. When the upper part of the steam trap 1 is blocked by another equipment machine, the detection part 3 of the sensor 2 is fitted into the concave part 5 or the concave part 6 to detect the vibration level or the temperature level of the steam trap 1. The discharge grooves 4b and 4c are opened obliquely downward from the back wall 4a of the recess 4 to the front side and the back side, and the discharge groove 5b is opened vertically downward from the back wall 5a of the recess 5 to A discharge groove 6b is opened vertically downward from the wall 6a.

  The vibration level and the temperature level are detected by fitting the detection unit 3 of the sensor 2 into the concave portion 4 or the concave portion 5 or the concave portion 6 formed on the outer surface of the steam trap 1. The recess 4 has discharge grooves 4b and 4c opened obliquely downward from the back wall 4a to the front side and the back side, the recess 5 has a discharge groove 5b opened vertically downward from the back wall 5a, and the recess 6 is Since the discharge groove 6b is opened vertically downward from the wall 6a, the rainwater and foreign matter that flowed into the recess 4 flow down to the outside of the recess 4 through the discharge grooves 4b and 4c, and the rainwater and foreign matter that flowed into the recess 5 Rainwater and foreign matters that flow down to the outside of the recess 5 through the discharge groove 5b and flow into the recess 6 flow down to the outside of the recess 6 through the discharge groove 6b. Therefore, it is possible to completely prevent the pressing state of the detection unit 3 from changing, tilting and slipping, and accurately detect the vibration level and temperature level.

The front view which fitted the detection part of the sensor in the steam trap as a structure of the to-be-detected object of this invention. AA sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Steam trap 2 Sensor 3 Detection part 4, 5, 6 Recessed part 4a, 5a, 6a Back wall 4b, 4c, 5b, 6b Discharge groove

Claims (1)

In a detection object that detects the level of vibration or temperature by pressing the detection part of the vibration sensor or temperature sensor against the outer surface, a recess where the detection part of the vibration sensor or temperature sensor fits on the outer surface of the detection object A structure of an object to be detected which is formed and has a discharge groove opened downward from the back wall of the recess.

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