Steam generator and steam cleaning device

Abstract

The invention relates to a steam generator used for instantly generating steam. The steam generator comprises a hollow heating body, wherein the heating body is provided with an inner wall surface and an outer wall surface, the heating body is provided with a first end part and a second end part, the inner wall surface of the heating body encloses a heating cavity extending from the first end part to the second end part, the heating cavity is a heating cavity extending along a straight line direction; the first end part of the heating body is provided with a water injection channel which is communicated with the heating cavity, the second end part is provided with a steam output channel which is used for outputting steam in the heating cavity, two ends of the water injection channel are respectively provided with a water inlet and a water outlet, the water inlet and a water source are connected, and the water outlet stretches into the heating cavity and the opening part of the water outlet faces to the inner wall surface of the heating body. The water outlet is arranged in a form of facing to the inner wall surface of the heating body so as to eliminate the problem of incomplete steam conversion when the steam generator tilts up and down or is vertically installed, thus the heating length of the heating cavity can be ensured and then water entering the heating cavity can be fully converted into steam.

Description

technical field [0001] The invention relates to a steam generator for instantaneous steam generation and a steam cleaning device. [0002] Background technique [0003] Steam appliances such as steam cleaners or steam irons are widely used. In the prior art, in order to make these electrical appliances do not need to be preheated to generate steam when they are in use, steam generators capable of instantaneously generating steam are installed in these electrical appliances. A common steam generator has a hollow heating body (heating wires are buried inside the heating body), and a heating chamber is formed inside the heating body. When water flows through the heating chamber, it is instantly heated and converted into steam. [0004] Due to the limited power of the above-mentioned household appliances and the small amount of steam that needs to be generated instantaneously, the inner diameter of the heating chamber inside the heating body is very small. In the heat...

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Problems solved by technology

[0005] The steam generator with the above structure will have the following problems when in use: since the heating channel is a heating channel extending along a straight line, when the steam generator is inclined up and down or installed in a vertical direction, the water will be subjected to gravity when it first enters the heating chamber. The effect is to fall vertically downwards. Since the fall will last for a certain distance, this will inevitably shorten the heating process of the heating chamber to the water (the reason is that the water is not connected to the wall of the heating chamber when it falls), so that the final steam will not totally steam

In addition, since the part of the heating body close to the water inlet has not been in contact with the water entering the heating chamber for heat exchange, the temperature of this part of the heating body will become very high after working for a period of time. If the heat cannot be dissipated in time, there will be safety hazards in the use of electrical equipment equipped with this steam generator

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