JPS58217134A - Steam generator - Google Patents

Abstract

PURPOSE:To prevent the scattering of boiling water from a steam generating port by a method wherein protruded boiling preventive member is inserted and fixed perpendicularly within a hollow metallic pipe having its upper end opened in the atmosphere and a heater is wound around the outer periphery of the metallic pipe. CONSTITUTION:The hollow metallic pipe 14 whose lower end is in communication with a water tank 9 and whose upper end opens in the atmosphere is arranged parallel to the water tank 9 and the obtrusive boiling preventive member 17 whose outer side surface is made rough is inserted and fixed perpendicularly into the pipe 14. Further, the heater 15 is wound around the outer periphery of the pipe 14. With the above structure, air bubbles generating on the inner surface of the lower end of the pipe 14 come into contact with the rough surface of the obtrusive boiling preventive member 17 and as the area of contact of each of the air bubbles with respect to the member 17 increases, so that the air bubbles are equalized instead of becoming large. Accordingly, no large air bubbles generate in a steam generating pipe 10 and the scattering of the boiled water on the surface of the water is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a humidifying device using steam to prevent indoor drying when an electric stove or the like is used, and in particular to improving the steam generation efficiency of the device and preventing hot water from scattering from the steam generating port. The purpose is to

In a humidifier that heats water to boiling water and humidifies the generated steam, if the boiling water is held vertically and is obtained in a hollow metal pipe with a heating heater wrapped around the outside, the steam is generated in the hollow metal pipe. It is generated vigorously from the opening at the top end, and when the large bubbles generated in the boiling water float up and burst on the liquid surface, the hot water scatters and ejects along with the steam, causing burns and damage to the steam generation opening. There was a problem in that the periphery of the container was wetted by splashed hot water.

The present invention has been made in view of these points, and one embodiment thereof will be described below with reference to the drawings. (1) is an electric stove main body,
A reflecting plate (3) is disposed on the front surface of the casing (2), and a tubular heater (4) (
41, and a protective guard (5) is covered on the front surface thereof.

(6) is a steam generator disposed within the housing (2),
The steam generation port (7) is made to protrude from the top wall (8) of the stove body (1).

Therefore, the steam generator (6) is mainly a water storage tank (9).
and a steam generation pipe (10) arranged in parallel on the negative side thereof. The water storage tank (9) has an air vent hole I at the top.
A connecting pipe with an opening @ facing upward on the downward side.
It consists of a molded body of synthetic resin material with an extended shape.

One of the steam generation pipes (10) is a hollow metal pipe circle;
A heater decoy is wrapped around the outer circumference of the hollow metal pipe, and a funnel-shaped steam generation port (7) is connected to the upper end of the hollow metal pipe, and the steam generation pipe (2) is connected to the water storage tank. The connecting pipe (9) is connected to the connecting pipe facing each other, and the outer periphery of the connecting pipe is integrally connected to the connecting pipe.

α7 is a bumping prevention body inserted vertically into the center of the hollow metal pipe side and made of a material such as so-called siegel wire, with a metal core ogJ provided at the center and a silicon tube α9 outside. The outer surface of the tube is fitted with a rough surface (2) made of braided heat-resistant and water-resistant glass fibers. The bumping prevention body α is fixed by pulling out the central metal core α slightly and clamping and fixing it with a fixing pipe ② that connects the hollow metal pipe circle and the steam generation port (7).

In such a configuration, when a predetermined amount of water is poured from the steam generation port (7) into a measuring cup (not shown) or the like, the water is sequentially stored in the water storage tank (9). At that time, the water storage tank (9
) The air contained in the chamber is sequentially discharged through an air vent hole drilled at the top.

After a predetermined amount of water is injected, when the heating heater (15) is energized, the water located in the steam generation tube αα is sequentially heated and boiled, and the generated steam is released from the steam generation port (7). It is something that

In this steam generation process, if the temporary pipe is not provided with the bumping prevention body 11'lr inside the hollow metal vibrator circle, bubbles will slowly generate on the inner surface of the lower end of the hollow metal pipe α4 and become large bubbles. Finally, due to the buoyancy of the bubbles themselves, they separate from the inner surface of the pipe, pushing up the countless small bubbles that are generated in the upper layer, bursting on the liquid surface, and causing hot water to scatter from the steam generation port (7). It is something. However, if the bumping prevention body (1'7) is provided as in the present invention, no air bubbles will be generated at the lower end of the hollow metal pipe circle.

To be more specific, as the bubbles are generated, they come into contact with the rough surface (2) of the bumping preventer αη, and as the contact area increases, the bubbles are evenly divided and prevented from increasing in size. For this reason,
Immediately after the bubbles generated in the hollow metal pipe α, they touch the rough surface (4) of the bumping preventer a'71 and rise as small bubbles without growing.

Note that it is desirable that the length of the bumping prevention body be approximately the same as or longer than the vertical dimension of the heater.

As described above, the present invention provides a water storage tank having a connecting pipe extending from one side, and a hollow metal member installed in parallel with the water storage tank and having a lower end communicating with the connecting pipe of the water storage tank and an upper end opening to the atmosphere. A pipe, a bumping prevention body inserted and fixed vertically into the hollow metal pipe and having a roughened outer surface, and a heating heater wrapped around the outer circumference of the hollow metal pipe, No large bubbles are generated in the steam generation tube, and as a result, there is no splashing of hot water on the liquid surface, and there is no fear of serious damage. Furthermore,
To prevent the table, equipment, etc. from getting wet with the scattered hot water, and to effectively generate steam.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an electric stove equipped with the steam generator of the present invention, FIG. 2 is a longitudinal cross-sectional view of the apparatus according to the present invention, and FIG. 3 is a partial cross-sectional view of a bumping prevention body. (91-...
・・Water storage tank ・・・Connecting pipe ・・・・・
・Hollow metal pipe ■・・・−・Heating heater ali・・・・Bumping prevention body ■・・・・・・−・Rough surface

Claims (1)

[Claims] (1) A water storage tank with a connecting pipe extending to the negative side; a hollow metal pipe installed in parallel with the water tank and having a lower end communicating with the connecting pipe of the water storage tank and an upper end opening to the atmosphere; A steam generating device that is similar to a bumping prevention body that is vertically inserted and fixed into a hollow metal pipe and has a roughened outer surface, and a heater that is wrapped around the outside of the hollow metal pipe.