JPS5926261Y2 - measurement recording device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for measuring and recording conditions in a high-temperature atmosphere such as a heating furnace.

BACKGROUND ART Various measurement methods have been proposed in the past in order to determine the temperature change over time of the atmosphere inside a heating furnace or the like or of the metal material charged into the heating furnace.

For example, there is a method of embedding a detection end in the material inside the furnace, drawing a long signal line corresponding to the distance traveled within the furnace, and connecting it to a measurement recording device outside the furnace.

This method places unreasonable stress on the signal line, and accidents such as poor insulation and disconnection are likely to occur.

Another method is to install a measurement unit consisting of a detection end and a transmitter inside the furnace or on the charging material, and record measurement data with a receiver outside the furnace.

This method has drawbacks such as mixing in external noise and requiring antenna equipment for transmission and reception.

Therefore, an object of the present invention is to provide a device that has a simple and compact structure and can remotely measure the condition of a high-temperature atmosphere such as a heating furnace.

The measurement recording device of the present invention is made up of an electronic measurement element that analyzes and stores detection signals from the detector at appropriate timing, and a heat insulating container that isolates this element from the high temperature atmosphere.

Next, the measurement and recording device of the present invention will be explained with reference to the drawings.

The measurement recording device 1 of the present invention is made up of a heat insulating container 2 and an electronic measuring element 3, as shown in FIGS. 1 to 3.

In the heat insulating container 1, a heat insulating material 22 such as asbestos or ceramic fiber is pasted on the inside of a metal box 21, and a water tank 23 is placed inside the heat insulating material 22.

In order to fix the position of the water tank 23, a support 231 made of a suitable heat insulating material may be provided between the water tank 23 and the metal box 21.

A rectangular parallelepiped recess 232 is formed approximately in the center of the water tank 23 (FIG. 3).

A steam post pipe 233 is provided at the top of the water tank 23 and communicates with the body of the box 21.

This pipe 233 is also used to supply water to the water tank 23.

Near the entrance of the recess 232 of the water tank 23, openings 221 and 211 are formed in the heat insulating material 22 and the box 21, respectively, so that the lid 24 can be inserted therein.

The lid 24 has a metal plate 241 made of the same material as the box 21 and a heat insulating material 2.
Fix the heat insulating material 242 made of the same material as 2, fix the Honda 243 to the tip of the insulating material 242, and remove the heat insulating material 2 from the Honda 243.
42, the input conductor 244 is embedded through the metal plate 241.

The electronic measuring element 3 is detachably attached to the tip of the Honda 243.

When the lid 24 is inserted from the position shown in FIG. 3 to the state shown in FIG.
2, and the heat insulating material 242 and holder 243 of the lid 24 are housed in the recess 232 and the opening 221 of the heat insulating material 22.
The metal plate 241 is placed in the opening 2 of the box 21.
Block 11.

The metal plate 241 may be fixed to the box 21 with conventional bolts or the like.

The measurement recording device 1 of the present invention configured in this way is as follows:
By housing the electronic measuring element 3, which is sensitive to high temperatures, in the heat insulating container 2, it can be isolated from the high temperature atmosphere.

Therefore, the measurement and recording device 1 of the present invention can be applied in various ways, among which a typical example of application is shown in FIG.

FIG. 4A shows an application example in which the measuring and recording device 1 of the present invention is installed in a slab 4 loaded into a heating furnace, and a plurality of pairs of thermocouples 5 are used as detectors.

The thermocouple 5 is arranged so as to be able to measure both the temperature of the slab 4 and the heating atmosphere.

FIG. 4B shows a state in which the measuring and recording device 1 of the present invention is installed in a furnace to measure the conditions inside the heating furnace 6 and the like.

Next, the circuit configuration of the electronic measuring element will be explained with reference to FIG.

Detection signals from a plurality of detectors (not shown) are sent to an input of an input signal switch 31.

The input signal switch 31 sequentially selects input signals and sends them to the analog-to-digital converter 32, and stores the digital signals in the memory 33.

The operating timing of these devices 31, 32, 33 is controlled by a timing controller 34.

This circuit is supplied with power by a built-in battery (not shown).

Therefore, during measurement of the element, no external supply of cooling water or any connection of electrical signals other than measurement input signals is made.

When the measurement is completed, the measurement recording device 1 is taken out of the furnace, and the electronic measurement element 3 is placed on a readout device 7 prepared separately.

That is, the output of the memory 33 of the electronic measuring element 3 is connected to the input of the reading device 7.

The output of the reading device 7 is displayed and recorded by a display device 8.

FIG. 6 shows the measurement results of the measurement and recording device of the present invention and the temperature changes inside the heat insulating container.

In this example, the dimensions are 220 mm x 150
The measuring and recording device of the present invention was installed on a 0 mm x 10 m slab (steel slab), and this slab was loaded into a walking beam type heating furnace to record the temperature rise A of the slab and the atmosphere inside the furnace. The temperature B was measured, and at the same time, the temperature change C inside the recess 232 of the water tank 23 of the heat insulating container 2 was measured.

As can be seen from these measurement results, the temperature of the slab increases as the atmospheric temperature inside the furnace increases.

Further, the temperature inside the recess 232 of the heat insulating container 2 is maintained at 100° C. by the latent heat of vaporization of water.

The permissible operating temperature of normal electronic components is approximately 70°C, but electronic components with special heat-resistant design are approximately 130°C.
Can withstand temperatures up to.

Therefore, the heat insulating container of the present invention can also sufficiently protect the electronic measuring element.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the measurement and recording device of the present invention. FIG. 2 is a cross-sectional view taken along line II--II in FIG. 1. FIG. 3 is a drawing similar to FIG. 1, and shows a state in which the lid and the electronic measuring device are removed from the heat-insulating container. FIG. 4 is a schematic explanatory diagram showing an example of use of the measurement recording device of the present invention. FIG. 5 is a schematic circuit configuration diagram of an electronic measuring element. FIG. 6 is a graph showing the heat insulation effect of the measurement and recording device of the present invention. 1: Measurement recording device, 2: Heat insulating container, 3: Electronic measuring element.

Claims (1)

[Scope of utility model registration request] It consists of an electronic measuring element that analyzes and stores detection signals from the detector at appropriate timing, and an insulating container that isolates this element from a high-temperature atmosphere. A water tank is installed inside the heat insulating material, a pipe is provided at the top of the water tank to communicate the inside of the water tank with the outside of the box, and four parts are formed approximately in the center of the water tank to accommodate the electronic measurement element. A measurement and recording device, characterized in that the electronic measuring device is detachably attached to the inside of a lid that houses the water tank and closes an opening of a concave portion of the water tank.