JPH09303703A - Steam generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized steam generator which can generate steam in a short time and can quickly control the quantity of generated steam. SOLUTION: This steam generator has an insulating liquid storage vessel 12 to store conductive liquid and a pair of electrodes 14 and 14 arranged in opposition apart from each other within the vessel, and generates steam by applying currents between electrodes through conductive liquid so as to heat the conductive liquid. An AC power source 18 is connected to the electrode, and also this is provided with a current application control means 20 to control the current application and a sensor 22 to detect the temperature within a steaming chamber 24, and this controls the current application, according to the temperature within the steaming chamber, and controls the quantity of generated steam.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a steam generator such as a steamer.

[0002]

2. Description of the Related Art A steam generator has a water tank for containing water to be steam and a heating device set outside the bottom of the water tank. The heating device uses electricity,
Although there are those using gas or other fuels, all of them are designed to transfer the heat generated in the heating device to the water in the water tank by heat conduction for heating to generate steam.

For this reason, the thermal efficiency is not so good, and it is also not easy to control the steam generation rate quickly.

[0004]

SUMMARY OF THE INVENTION In view of such a point, the present invention has an object to provide an apparatus capable of efficiently generating steam and capable of quickly controlling the steam generation amount. To do.

[0005]

[Means and Actions for Solving the Problems]
The steam generator according to the present invention has an insulating liquid storage tank for storing a conductive liquid, and a pair of electrodes arranged in the tank so as to face each other with a space therebetween, It is characterized in that an electric current is applied between the electrodes to heat the conductive liquid to generate vapor.

In this apparatus, since the conductive liquid itself is energized to generate heat, it is possible to efficiently perform heating and vapor generation, and thus vapor can be generated in a short time. The amount generated can be controlled quickly.

A steaming chamber can be set above the liquid storage tank to serve as a steamer for food materials and the like.

An AC power source is connected to the electrodes, and an energization control means for controlling energization and a sensor for detecting the temperature in the steaming chamber are provided to control the energization in accordance with the temperature in the steaming chamber, that is, the current and voltage Can be controlled to control the amount of steam generated.

By setting the electrode at a position near the surface of the conductive liquid stored in the liquid storage tank, the required vapor can be generated more efficiently.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings.

The attached drawings show an outline of a steam generator 10 according to the present invention.

That is, the apparatus 10 has an insulating liquid storage tank 12 for storing a conductive liquid, and a pair of electrodes 14, 14 arranged in the tank so as to face each other with a gap therebetween. .

An AC power supply 18 is connected to the electrodes 14 and 14, and a control device 20 for controlling energization by the AC power supply is also connected.

The controller 20 controls the voltage between the electrodes 14 or the current passed between the electrodes, and the control is set in the steaming chamber set on the liquid storage layer 12. The temperature sensor 22 detects the temperature in the steaming chamber 24 and detects the temperature in the steaming chamber 24.

As the conductive liquid, water containing an electrolyte material such as salt is used.

In use, when the electrodes 14 and 14 are energized, heating of the conductive liquid starts immediately and vapor is generated in a short time. It is preferable that the electrodes 14 and 14 are set so as to be located above the liquid storage layer 12, that is, near the liquid surface of the energizing liquid, as shown in the drawing. That is, by doing so, the liquid heating by energization can be performed mainly only in the portion near the liquid surface necessary for steam generation, and the steam generation can be performed in a shorter time, It is also possible to quickly control the amount of steam generated.

The steam generator 10 according to the present invention is constructed and used as described above. As in the conventional steam generator, the heating device is set outside the tank, and the heat generated in the heating device is set. The heat is transferred to the liquid such as water inside the tank by heat conduction to heat it, and unlike the one that generated steam, the liquid itself is energized to generate heat due to the resistance of the liquid itself. The heating and steam generation can be performed much more efficiently than the conventional ones, and therefore, the control of the steam generation amount can also be performed quickly. Therefore, the above-mentioned problems of the conventional steam generator can be solved.

Further, in the steam generator according to the present invention, it is not necessary to set the heating device outside the liquid storage tank as in the conventional device, so that the entire device can be made compact.

[Brief description of drawings]

FIG. 1 is a sectional view showing the outline of a steam generator according to the present invention.

[Explanation of Codes] 10 --- Steam generator 12 --- Liquid storage tank 14 --- Electrode 20 --- Control device 22 --- Temperature sensor 24 ---- Steaming chamber

Claims (4)

[Claims] 1. An insulating liquid storage tank for storing a conductive liquid, and a pair of electrodes arranged in the tank so as to face each other with a space therebetween, and the electrode is provided through the conductive liquid. A steam generator characterized in that a conductive liquid is heated by heating the conductive liquid to generate steam. 2. The steam generator according to claim 1, further comprising a steaming chamber set above the liquid storage tank. 3. An AC power source is connected to the electrode, an energization control means for controlling energization and a sensor for detecting the temperature in the steaming chamber are provided, and energization is controlled according to the temperature to generate steam. The steam generator according to claim 2, wherein the amount is controlled. 4. The steam generator according to claim 1, wherein the electrode is set at a position near the surface of the conductive liquid stored in the liquid storage tank.