JPH0249700A - steam generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steam generator such as a steam iron.

2. Description of the Related Art Conventional steam generators generate steam by dropping water into the vaporization chamber from a dripping nozzle. and,
In order to increase the amount of steam generated, rolls of steel wool were placed inside the vaporization chamber, and the surface inside the vaporization chamber was modified with surface treatment agents.

Steel wool is used to increase the surface area because it makes it difficult for heat to be conducted inside the room. In addition, the material for the vaporization chamber (aluminum die-casting is used for boat fishing) and surface treatment materials are used to improve water wettability.

However, all of these require time and effort, their effectiveness depends on the method of filling and application, and the amount of steam is not stable. In other words, some produced a large amount of steam while others produced little, and when the amount of dripping was large, water droplets sometimes flowed out.

Furthermore, steel wool, which has a large evaporation area, is actually absorbed by the heat of evaporation due to its specific heat, and when the temperature drops, the heat supply cannot keep up and its effectiveness as an evaporation surface becomes smaller.

In order to solve these problems, a method has been proposed in which an open-cell material, typically a heat-resistant fibrous material, is inserted along the inside of the vaporization chamber.

However, when a regular open-cell foam was used, a new problem arose: the open-cell foam remained water-containing after the steam generator was used, causing the interior of the vaporization chamber (usually made of aluminum die-casting) to corrode.

The present invention has solved these conventional problems, and aims to provide a steam generator that generates stable steam and prevents corrosion inside the vaporizing chamber.

Means for Solving the Problems In order to solve the above-mentioned problems of the prior art, the present invention provides a water-repellent treated open-cell material installed inside the vaporization chamber.

Effects According to the present invention, since the open-cell body is water-repellent, the amount of water contained therein is extremely small, and even residual heat after using the device can be sufficiently vaporized.

Example Examples thereof will be described below with reference to the accompanying drawings.

1 and 2 show a steam iron, in which a vaporizing chamber 4 is formed in a part of a base 1 via a wall 3 in which a heater 2 is embedded.

The vaporization chamber 4 is divided into three chambers 7, 8, and 9 by two partition plates 6, 6. 1o is a water inlet provided on the top wall of the vaporization chamber 4, 11.12 is a steam hole formed in the partition plates 6, 6, and 13 is a steam ejection hole formed in the base 1. 11, 12 and the steam nozzle 13 are in a non-opposing relationship. 14.15 indicates Patsukin.

The chamber 7 is filled with open cell material 16 made of a heat-resistant fiber material, etc., and is treated to be water repellent. Water repellent treatment can be carried out using, for example, silicone water repellent (KR22) manufactured by Shin-Etsu Chemical.
After diluting 0) to an appropriate concentration, it is impregnated into open cell 1θ and dried.

In the above configuration, water from the water inlet 1o is injected into the open cell 1e in the chamber T and dispersed by capillary action. Then, when it reaches wall 3, it is vaporized. The steam flows through the chambers 8 and 9 and is finally jetted out from the steam jet hole 13 of the base 1.

At this time, if the open-cell body 16 is not present, the water that has flowed in will not undergo membrane boiling due to the high temperature, and will not be sufficiently converted into steam, and will be ejected from the steam ejection hole 13 as high-temperature water.

Furthermore, if a normal open-cell foam is used as it is, when the steam jet is stopped, drying will not be sufficient with short-time energization, and water will remain in the vaporization chamber. For this reason, when reusing the vaporizing chamber 4, the retained water is expelled before it becomes completely hot, causing a phenomenon in which water drips down. In addition, the inside of the vaporization chamber 4 was corroded due to the retained water.

In the embodiment, the open-cell foam 16 is used to fill the inside of the vaporizing chamber 4, so even if the steam is turned off, the iron can be completely dried by a short period of electricity supply or by the residual heat of the iron itself.

Effects of the Invention As described above, the steam generator of the present invention can stably generate steam, and even when the steam is stopped, it is possible to dry open-celled materials by applying electricity for a short time or using residual heat from the device itself. There is no water dripping or corrosion of the vaporization chamber the next time it is used.It is industrially useful.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of the steam generator of the present invention, and FIG. 2 is a side sectional view. 4... Vaporization chamber, 16... Open cell. Name of agent: Patent attorney Shigetaka Awano and one other person Figure 4 - Vaporization quality l B - Series 1 Likelihood 5 and Discord diagram /S

Claims (1)

[Claims] A steam generator equipped with water-repellent open-cell foam inside the vaporization chamber.