A Steam Generator Based on Liquid Level Measuring Device

Abstract

The invention discloses a vapor generator based on a liquid level measurement device. The liquid level measurement device of the vapor generator adopts a capacitance measurement mode, punching on theside wall of a heating box or placement of a liquid indicator in the heating box is avoided, the influences of a high-temperature high-pressure environment on measurement precision and measurement instruments are avoided, and a heat conducting piece achieves the effects of a heat conducting element and a capacitor plate at the same time, so that the structure of the vapor generator is more compact. Meanwhile, a soaking state of a heating rod and an exposure state of the heating rod on a water surface can be distinguished simply according to the instant change of a capacitance value, a controlinstruction can be directly sent to a control valve according to the two different states, control procedures and the structure of a control circuit are simplified, and the accuracy and timeliness ofcontrol are improved.

Description

technical field [0001] The invention belongs to the technical field of kitchen utensils, in particular to a steam generator based on a liquid level measuring device. Background technique [0002] With the improvement of living standards and the development of technology, various kitchen utensils have appeared on the market, including modern improvements to traditional utensils. Among them, the steam generator is a kitchen utensil heated by gas or electricity, which is usually used in restaurants, staple food stores and large restaurants. Compared with the traditional steamer, the steam generator is convenient to use, and is suitable for occasions where a large amount of staple food or steamed food needs to be produced, but the existing steam generator has some disadvantages. The heating tank of the current steam generator has a liquid level gauge for detecting the water level. These liquid level gauges can use connecting pipes to lead the water in the heating tank to the ou...

AI Technical Summary

Problems solved by technology

Compared with the traditional steamer, the steam generator is easy to use and is suitable for occasions that require mass production of staple food or steamed food, but the existing steam generator has some disadvantages

The heating tank of the current steam generator has a liquid level gauge for detecting the water level. These liquid level gauges can use connecting pipes to lead the water in the heating tank to the outside of the heating tank and measure the liquid level, but this liquid level gauge will destroy The overall structure of the heating box, and due to the high temperature and high pressure environment, the process requirements of the connected tube level gauge are relatively high

There are also liquid level gauges that can use non-contact detection methods such as ultrasonic, but this kind of liquid level gauge needs to open holes on the wall of the heating box, which will destroy the airtightness of the heating box, and the inside of the heating box is scale or high temperature environment. Will reduce the detection accuracy and service life of the probe

Secondly, due to the large capacity of the heating box, at the beginning of heating, the steam will be generated due to the long heating time, which also affects the taste of the cooked food to a certain extent and wastes energy.

For example, the amount of water in the heating tank of the existing steam generator is controlled according to the detected water level of the liquid level gauge. In the initial stage of heating, the temperature of the steam above the heating tank is low or there is no steam. At this time, adding water will greatly reduce the temperature of the water in the heating tank, thus significantly delaying the time for generating sufficient steam, which is not conducive to real-time application

In addition, in the control of heating power, there are also problems of low control accuracy and control lag, which need to be improved urgently

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