JPH03211335A - Humidifier - Google Patents

Abstract

PURPOSE:To make a clear replacing time of a sucking device and provide a stable keeping of a humidifying function by a method wherein a temperature of a heating member varying in response to an adhering amount of deposition scale on the absorbing member is detected and an electrical energization for the heating member is terminated when a specified amount of deposition of the scale is found. CONSTITUTION:A temperature sensing device 5 is operated under a variation in temperature of a heating member 3 when resolved impurities in humidifying water are deposited on the surface of a sucking member 4. The resolved impurities contained in the humidifying water are deposited in sequence on the surface of the sucking member 4 during the dehumidifying operation and then the humidifying capability is reduced from the surface of the sucking member 4. As a result, the thermal dispersion of the heating member 3 is deteriorated and the temperature on the surface of the heating member is increased, and the electrical energization for the heating member is terminated at a certain specified temperature. With such an arrangement, the replacing time of the sucking member 4 can be accurately judged without having any relation with a different water quality and further it is possible to keep the humidifying function stably.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a heated evaporative humidifier.

BACKGROUND OF THE INVENTION In recent years, heating evaporation type humidifiers have been required to provide stable humidification performance.

Conventionally, this type of humidifier is generally described in, for example, Japanese Patent Publication No. 4264/1983. In this method, the water in the suction body is boiled and impurity-free steam is released into the air, so calcium is dissolved in the water.

Magnesium, silicon dioxide, etc. become nucleated and adhere to the surface of the suction body, so the suction body must be replaced periodically.

Problems to be Solved by the Invention In such conventional humidifiers, it is not possible to detect differences in the amount of deposited scale due to differences in water quality, and it is said that immediately before the suction unit is replaced, a large difference in humidifying capacity occurs due to the difference in the water quality used. There was an issue.

The present invention solves the above problems by detecting the temperature of the heating element, which changes depending on the amount of scale deposited on the suction body,
When a certain amount of scale builds up, the power to the heating element is stopped and the time to replace the suction element is determined.

The purpose is to maintain stable humidification function.

Means for Solving the Problems In order to achieve the above object, the present invention provides a water tank that is supplied from a water supply tank and always holds water at a constant level, and a suction body that sucks up the water in the water tank by capillary action. , a heating element that is wrapped in the suction body and heats the suction body to vaporize water, and a temperature detection device that detects the surface temperature of the heating body, and the temperature detection device is configured to detect water dissolved in the humidifying water. The solution to this problem is to operate based on the change in temperature of the emitter when impurities are deposited on the surface of the suction body.

Function The present invention uses the above-mentioned problem-solving means, so that dissolved impurities contained in humidifying water are sequentially deposited on the surface of the suction body during humidification, reducing the humidification ability of the surface of the suction body. . As a result, the heat dissipation of the heating element deteriorates and the surface temperature of the heating element rises, so by stopping the power supply to the heating element at a certain temperature, it is possible to accurately replace the suction element regardless of differences in water quality. Be able to make judgments.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

As shown in the figure, a water tank 2 is provided in a humidifier main body 1, and one end of a suction body 4 in which a heating element 3 is embedded is immersed in water in the water tank 2. A temperature detection device 5 is provided on the end surface of the heating element 3. The cover 6 covers the upper part of the suction body 4 and has a discharge lower on the top surface through which steam passes. The float support cylinder 8 protrudes into the center of the water tank 2, and has a float 9 whose upper part is coated with a thin cylindrical magnet and a float switch 10 which is activated depending on the position of the float 9. A valve rod 12. There is a water inlet/outlet 14 with a valve 13, and a water tank 11 is placed on the humidifier body 1.

In addition, the valve stem 12 is in contact with the upper surface of the float support cylinder 8, and the valve stem 12 is in contact with the upper surface of the float support cylinder 8.
3 to open the water inlet/outlet 14 of the water tank 11.

In the above configuration, when tap water is supplied to the water tank 11 and set in the humidifier body 5, the valve stem 12 is moved to the float support tube 8.
is pushed up and valve 13 opens.

Water in the water tank 11 is poured into the water tank 2. When the water level reaches the water inlet/outlet 14 position of the water tank 11.

Air no longer flows into the water tank 11 from the valve 13, water supply stops, and the water level is maintained at this position from now on.

In this state, a portion of the lower end of the suction body 4 is submerged in water, so that the water in the water tank 2 is guided around the heating element 3 by capillary action. When the heating element is powered for 3 km, the water around the heating element 3 boils and evaporates.

It is discharged into the room from the discharge lower. Generally, tap water contains water-soluble impurities (calcium, magnesium, silicon dioxide, etc.), and when the water is evaporated, only pure water is vaporized, and the impurities are collected as scales in the suction body 4. Precipitates and adheres to the surface. If the suction capacity of the suction body 4 exceeds the evaporation capacity, the temperature of the heating element 3 will remain constant even if scale adheres to the surface of the suction body 4, but the suction capacity will be lower than the evaporation capacity. When this happens, the surface temperature of the heating element 3 begins to rise rapidly. There are large differences in the quality of tap water nationwide depending on the region, and when humidifying with tap water with high water quality, the amount of scale adhering to the surface of the suction body 4 will be faster, making it easier to use tap water with lower water hardness. The temperature detecting device 5 attached to the heating element 3 operates relatively quickly to stop the power supply to the heating element 1 3 and inform the user that it is time to replace the suction element 4. In addition,
The temperature detection means 5 may be configured to measure the change in resistance value of the heating element 3 or the rate of change in power consumption. On the other hand, examples of preferable materials for the suction body 4 include heat-resistant porous materials or heat-resistant fibers, more specifically porous ceramics, glass fibers, silica fibers, alumina fibers, #
These include basic fibers.

If the humidifier is used for a certain period of time and scale is attached and the temperature detection device 6 is activated and power to the heating element 4 is stopped, the suction element 4 is removed from the heating element 3 and a new suction element 4 is used to generate heat. If it is attached to the body 3, it can be reused and there is no risk of abnormal overheating of the heating element 3.

Effects of the Invention As is clear from the above embodiments, according to the present invention, the temperature of the heating element, which changes depending on the amount of scale deposited on the suction body, is detected, and when a certain amount of scale is deposited, the heating element is turned off. It is possible to clearly tell when it is time to stop and replace the suction body, to ensure safe humidification at all times even if there are differences in water quality, and to clearly determine when the usage limit is reached, regardless of who uses it. In addition, it is possible to provide clean humidification in which impurities in the water are not released into the room, and the precipitated scale adheres to the suction body and does not adhere to the water tank of the humidifier itself, making it a practical humidifier that is easy to clean. It has the effect of being

[Brief explanation of drawings]

FIG. 1 is a sectional view of a humidifier according to an embodiment of the present invention, and FIG. 2 is a perspective view of essential parts of the humidifier. 2...Aquarium, 3...Heating element, 4...
...Sucking body. 5. Temperature detection device, 11... Water tank for water supply.

Claims (1)

[Claims] A water tank that is supplied from a water tank and always holds water at a constant level, a suction body that sucks up the water in the water tank by capillary action, and a suction body that is wrapped in the suction body and heats the suction body to draw water. It is equipped with a heating element that vaporizes and a temperature detection device that detects the surface temperature of the heating element, and the temperature sensing device detects a temperature change of the heating element when dissolved impurities in the humidifying water are deposited on the surface of the suction body. A humidifier that works.