JPS61201123A - Temperature measuring instrument - Google Patents

Abstract

PURPOSE:To facilitate accurate measurement of temperature distribution in a heating furnace by providing a fixture enabling a thermometer to be horizon tally moved, a graduated plate for reading the end position of the thermometer and a supporting device for vertically or circumferentially moving the fixture. CONSTITUTION:A lift 2 causes a suspension fitting 4 of the thermometer 3 to be supported by a supporting device 21, and drives a driving shaft automati cally or with a handle 211 while rotating it with rotating means. The thermome ter 3 is moved horizontally along a groove of a mounting plate 63 of the fitting 6 to learn the position from the center of the furnace. A drive means 214 of the supporting device 21 is driven to rotate a shaft 40 and the fitting 6 so that the thermometer 3 is also rotated in the circumferential position thereof to permit to grasp the circumferential position in the furnace of the heating furnace 1. An upper plate of the graduated plate 53 is slid to provide an aperture through which the thermometer 3 can descend and the supporting device 21 is lowered to enable the depth in the furnace of the thermometer 3 and espe cially its end part by an index 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a temperature measuring device for measuring the temperature distribution inside a heating furnace such as a temperature verification furnace.

[Prior Art] To verify and calibrate a thermometer such as a thermocouple or a resistance thermometer, a thermometer to be calibrated is inserted into a verification furnace along with a standard thermometer, and a comparative verification is performed. In this case, the verification is correct if there is a temperature distribution in the verification furnace.

Calibration of the scale becomes a function. Further, when heat treating the object to be heated, the temperature distribution is provided in the furnace and the heat treatment is performed at a predetermined (8-point position).

[Problems to be Solved by the Invention] As heating furnaces are used for various purposes, it is necessary to know the correct temperature distribution within the furnace before use or at an appropriate time.

In view of the above points, an object of the present invention is to provide a temperature measuring device that facilitates measurement of temperature distribution in a heating furnace.

[Means for Solving the Problems 1] The present invention includes a fixture for movably mounting a thermometer in the horizontal direction, a scale plate for knowing the position of the tip of the thermometer, and a fixture for movably moving the thermometer in the vertical or circumferential direction. This is a temperature measurement device including a support device for moving the temperature measurement device.

[Example] Fig. 1 is a front explanatory view showing one embodiment of this Brahma;
The figure is a partially illustrative side view.

In the figure, 1 is a vertical heating furnace, and 2 is a lifting device. The heating furnace 1 includes a furnace core tube 12 installed vertically in a suitable box 11, a heater 13 around it, a heat insulator 14 at the bottom, and an opening 15 at the top of the furnace core tube 12. A thermometer 3 such as a thermocouple or a resistance temperature detector is suspended and inserted, and the inside of the furnace core tube 12 is kept at a predetermined temperature by a control means (not shown). The lifting equipment [2] directs the suspension device 4 for suspending the thermometer 3 to the support device 21, and the drive shaft 2'I
The support device 21 is moved up and down by being driven by an automatic or manual handle 211, and the hanging tool 4 is rotated by an appropriate rotation means.

The lifting device 2 also includes a scale 22 and an indicator 11 in the vertical direction.
2N index 23, two support shafts 51 in the vertical direction
．． 52. A scale plate 53, which will be described later, is provided at the bottom.

The support device 21 in FIGS. 1 and 2 includes a support part 211 that moves up and down by a drive shaft 210, a rail part 212 provided at the bottom of this support part 211, and an appropriate drive that is directed by this rail part 212. It is composed of a moving part 213 that moves in the horizontal direction by a means, a hanging tool 40 provided vertically penetrating through this moving part 213, and a rotating means 214 that rotates this shaft 40 with a motor or the like. .

That is, the pointing device 21 moves up and down, and its moving section 212 moves horizontally, and furthermore, the moving section 212 moves horizontally.
The shaft 40 of the hanging tool 4 provided on the shaft 40 is adapted to rotate.

3 and 4: As shown in detail of the hanging device 4 for attaching the thermometer 3, the shaft 40 has a chuck-like connecting portion 44 including a stop ball 41, a spring 42, and a ring 43. is provided, and a mounting tube 6 that engages with the positioning portion 45 of this connecting portion 44 and allows the thermometer 3 to be removed is connected thereto.

In other words, this fixture 6
It is composed of an insertion part 61 which is engaged with an engagement part 611 at the tip thereof to be connected to the end of the insertion part 61, an L-shaped arm 62 fixed to this insertion part 61, and a mounting plate 63 fixed to this arm 62. be done. As can be seen from the plan view of the mounting plate 63 in FIG. A fat groove 64 is formed, and a holder 65 into which the thermometer 3 is inserted is provided. This holder 65 has a collar 66 formed at the lower part, a temporary spring 67 interposed between the collar 66 and the mounting plate 63, and the upper part has a tapered screw part 68 having a slotted base whose external source is a screw. The thermometer 3 is fixed by tightening the threaded portion 68 with the nut 69. Furthermore, the holder 65 can be positioned at any position from the center to the outer periphery along the iM 64 against the temporary spring 67, and the position of the base of the temperature δ13 from the center can be known by the eye @81. Can be done.

Since this thermometer is long, the scale plate 53 in Figures 1 and 2
Its tip reaches. This scale plate 53 is, for example, the fifth
As shown in the figure, the thermometer 3 consists of a lower plate 551 having an opening through which the thermometer 3 can be inserted in the vertical direction, and an upper plate 552 that slides in the horizontal direction, and a circumferential or radial scale 82 is provided on the upper plate 552. This allows you to know the position of the tip of the thermometer in the furnace.Also, the upper and lower scales 81.8
2 can be used to determine how bent the thermometer is to the base, that is, whether it is kept vertical.

That is, by moving the thermometer 3 horizontally along the groove 64 of the mounting plate 63, the position of the thermometer 3 from the center of the furnace can be determined by the scale 81. Next, when the driving means 214 of the support device 21 is driven to rotate the shaft 40 and the connecting part 4: #-1 fitting 6, the thermometer 3 also rotates at that circumferential position, and the thermometer 3 is rotated at the circumferential position shown in FIG. Thermometer sheep heating furnace 1 with scale 82
It is possible to know the circumferential position of the inside of the furnace. Next, the upper plate 552 of the scale plate 5 is slid to create an opening through which the thermometer 3 can be lowered, the support device 21 is lowered, and the upper and lower scales 22 and the index 23 are used to measure the depth of the thermometer 3, especially at its tip. It is possible to know the location. Then, the temperature distribution inside the furnace can be measured using the '1411 total 3 at a predetermined position inside the furnace. In this way, the fixture 6 is freely movable in the vertical direction or in the circumferential direction by the support device 21.

In addition, all movements such as vertical movement of the support device 21, horizontal movement of the moving part 23 of the support device 21, shaft 4° connection part 4t of the moving part 213, and rotation of the fixture 6 are controlled by an external computer. The thermometer 3 may be placed at an arbitrary position within the heating furnace 1 to automate the measurement of the salinity distribution under control using a heat exchanger or the like. It is also recommended that the measurement results be automatically recorded on a recorder or other device.

Effects of C-light 1 As described above, in the present invention, since the position of the thermometer can be freely moved, the temperature distribution in the furnace can be accurately and extremely easily measured.

[Brief explanation of the drawing]

FIG. 1, FIG. 2, FIG. 3, FIG. 4, and FIG. 5 are configuration explanatory diagrams showing one embodiment of the present invention.

Claims (1)

[Claims] 1. A fixture for horizontally movably mounting a thermometer, a scale plate for knowing the position of the tip of the thermometer, and a support device for moving the fixture vertically or circumferentially. A temperature measuring device characterized by comprising: 2. The temperature measuring device according to claim 1, characterized in that a scale is provided on the fixture. 3. The temperature measuring device according to claim 1 or 2, wherein the driving of the support device and the measurement by the thermometer are automated by an external computer.