JPH04361146A - Wet-bulb thermometer - Google Patents

Abstract

PURPOSE:To enable a wet-bulb temperature to be measured accurately and continuously by covering a temperature-sensitive portion of a thermocouple thermometer with a high water-absorbing body and connecting a water-supply means to the high water- absorbing body. CONSTITUTION:A heat-resistance heat-insulation pipe 3 is inserted and mounted on a side wall of a drying device 1 and a thermocouple thermometer 4 is inserted into the pipe 3. A temperature-sensitive portion 8 which is covered with a high water- absorbing body 7 is provided at a tip of the thermocouple thermometer 4. The high water-absorbing body 7 conserves water 13 of a water-supply tank 12 which is supplied through a water channel 10 and a penetration hole 11. The high water-absorbing body 7 is heated by heat within the drying device 1, a water content which is adhered to a wet bulb is evaporated, and a temperature of air at the time of saturation is displayed digitally at a display portion 20 and is recorded on a recording portion 21. At this time, the water 13 within the water-supply tank 12 is constantly supplied to the high water-absorbing body 7 through the water channel 10 and the penetration hole 11 so that the high water-absorbing body 7 constantly conserves a specified amount of water during measurement of temperature, thus preventing a temperature- sensitive portion 8 from being dried and enabling continuous temperature measurement to be made.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is applicable to wood, building materials, powder,
This invention relates to a wet bulb thermometer that measures the wet bulb temperature of the atmosphere inside an apparatus such as a drying apparatus for foods, ceramics, etc.

0002

2. Description of the Related Art In a conventional wet bulb thermometer, the temperature sensitive part of a rod-shaped mercury glass thermometer is wrapped in cloth moistened with water, and the wet bulb temperature is read from the reading of the thermometer.

0003

SUMMARY OF THE INVENTION Conventional wet bulb thermometers have the following problems when measuring the wet bulb temperature of the atmosphere inside a device such as a drying device. (1) When a cloth wet with water dries due to the heat inside the device, it no longer indicates the wet bulb temperature, making continuous measurement of the temperature impossible. Therefore, during measurement, I took out the wet bulb thermometer several times, wet the cloth on the temperature sensitive part, and then set the thermometer again. However, wetting the cloth to absorb water is troublesome, and when measuring for a long time, the wet bulb temperature measurement must be interrupted each time. (2) Since the thermometer is taken in and out, the atmosphere inside the drying device is disturbed, making it impossible to accurately measure the temperature, and when this atmosphere is high temperature and humidity, this water supply operation becomes dangerous. (3) Since the rod-shaped mercury thermometer is made of glass, care must be taken when handling it. Furthermore, since it is necessary to visually read the reading scale, the timing of reading becomes a problem and reading errors are likely to occur.

[0004] In view of the above circumstances, an object of the present invention is to enable accurate and continuous measurement of wet bulb temperature.

[0005]

[Means for Solving the Problems] The present invention provides a wet bulb thermometer characterized in that the temperature sensitive part of the thermocouple thermometer is covered with a super absorbent material, and a water supply means is connected to the super absorbent material. It is an attempt to achieve a goal.

[0006]

[Operation] During wet bulb temperature measurement, the super absorbent material surrounding the temperature sensitive part of the thermocouple thermometer is heated and water evaporates, but this super absorbent material is constantly supplied with water via the water supply means. Therefore, the superabsorbent material always maintains a state containing an appropriate amount of water. Therefore, there is no need to take out the thermocouple thermometer and refill it with water during temperature measurement.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be explained with reference to the accompanying drawings. A heat-resistant insulation tube 3 is inserted into a side wall 2 of the drying device 1. A thermocouple thermometer 4 is inserted into the tube 3, and both ends thereof are fixed by support members 5 and 6. At the tip of the thermocouple thermometer 4, a temperature sensing portion 8 covered with a super absorbent material 7 is provided. This super water absorbent body 7 has a water channel 10, a through hole 11
Specifically, for example, a super absorbent resin, polyurethane, sponge, heat-resistant super absorbent resin, etc. are used. The water supply tank 12 is provided at the rear end of a heat-resistant and heat-insulated pipe 3 protruding from the side wall 2. The super absorbent body 7 is covered with a protective cover 14 made of a heat-resistant porous material. The thermocouple thermometer 4 is provided with a display section 20 that digitally displays the wet bulb temperature and a recording section 21 that records the temperature.

Next, the operation of this embodiment will be explained. The water adhering to the wet bulb slowly evaporates due to the heat inside the drying device 1, and the temperature of the air when it just reaches the saturated state is digitally displayed on the display section 20 and recorded on the recording section 21. At this time, the water 13 in the water supply tank 12 is
Since the water is supplied to the super water absorbent body 7 through the through hole 11, the super water absorbent body 7 always retains a predetermined amount of water during temperature measurement. Therefore, the temperature sensing section 8 does not dry out and become unable to measure temperature, making continuous measurement possible.

[0009]

[Effect of the invention] Since this invention is configured as described above,
The super water absorbent body always retains a predetermined amount of water by means of water supply means. Therefore, unlike the conventional example, there is no need to take out the wet bulb thermometer and supply water during temperature measurement, making it possible to safely and continuously measure temperature. Furthermore, since the atmosphere around the heat sensitive section is not disturbed, accurate wet bulb temperature measurements can be made. Furthermore, since it is a thermocouple thermometer, it can measure temperatures higher than conventional mercury glass thermometers.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention.

[Explanation of symbols]

3 Thermocouple thermometer 7. Super water absorbent 8 Heat sensitive part 12 Water tank 20 Display section

Claims (2)

[Claims] Claim 1: Covering the temperature sensitive part of a thermocouple thermometer with a super water absorbent material,
A wet bulb thermometer characterized in that a water supply means is connected to the superabsorbent body. 2. The wet bulb thermometer according to claim 1, wherein the thermocouple thermometer comprises a display section and a recording section.