Acid Steam Cleaner with Integrated Level Tube, Filling Funnel, and Drain Valve

Abstract

The invention provides an acid steaming cleaning device provided with an integrated liquid-level tube, a liquid filling funnel and a liquid waste discharging valve. The acid steaming cleaning device can comprise an original acid liquid container used for containing original acid liquid, a heater used for heating the original acid liquid container part to obtain hot acid steam, a cleaning cavity, a controller used for controlling the operation of all components to conduct an acid steaming cleaning technique, and an integrated original acid liquid level control component connected with the original acid liquid container part, wherein acid steaming cleaning of vessels is conducted in the cleaning cavity. Due to the fact that the liquid-level tube, the liquid filling funnel and the liquid waste discharging valve are integrally arranged, the original acid liquid enters the original acid liquid container through the liquid filling funnel, the liquid level of the original acid liquid container is reflected by the liquid level of the liquid-level tube, and the acid liquid in the original acid liquid container can be discharged when the liquid waste discharging valve is opened. The trouble that the funnel, the liquid-level tube and the liquid waste discharging valve are mutually separated in traditional schemes and therefore the funnel needs to be installed and uninstalled before and after the acid liquid is filled is avoided through the integrated original acid liquid level control component of the embodiment, so that pollution in the storing process of the funnel is avoided.

Description

technical field [0001] The invention relates to an acid steam cleaning device, more particularly to an equipment and method for automatically acid steam cleaning a vessel. Background technique [0002] The analysis of trace and ultra-trace metal elements in the laboratory requires that the utensils used must be clean to avoid bringing various pollutants into the sample, so as not to affect the final experimental results due to the high background value introduced due to unclean utensils. [0003] At present, there is a method of evaporating ordinary acid in a sub-boiling manner to obtain high-purity acid vapor, and using such acid vapor to clean utensils. In the current design of common acid steam cleaners, there are usually certain problems in process control, waste acid treatment, heating and temperature control, and liquid level control. [0004] 1. Process control: [0005] (1) Existing solutions usually only provide the first step of acid steam cleaning, and still req...

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Problems solved by technology

[0005] (1) Existing solutions usually only provide the first step of acid steam cleaning, and still require the user to manually rinse the residual acid on the surface of each vessel with pure water one by one, and then still need the user to manually place the vessel on the Blast drying oven drying or natural air drying, very time-consuming and laborious

[0006] (2) If the blast drying oven is used for drying, because the blast drying oven itself is made of metal materials, and the inhaled air is not strictly filtered and purified, and other things are dried daily, this This method will face the problem of secondary pollution caused by blast drying oven or unclean air

[0007] (3) If natural air drying is adopted, it will take too long

[0012] (1) Existing solutions usually prevent the temperature sensor from being easily corroded by high-temperature strong acid. The temperature sensor is installed outside the container to avoid contact with strong acid. However, this installation method measures the temperature of the outer wall of the container or the heater. It cannot reflect the real temperature of the acid solution. Usually the temperature of the solution is 10-30°C different from the temperature of the outer wall of the container or the heater, and the measurement error of the temperature is very large.

[0013] (2) Existing solutions rely on temperature controllers to control the temperature, and the heater itself does not have the function of self-temperature control

[0015] (1) For the liquid level control of clean acid liquid, because the existing solution is a cycle mode of evaporation-condensation-reflux-evaporation, the liquid level will not change much during the whole process, and the internal acid gas is steaming, from The liquid level is difficult to observe from the outside, so there is usually no liquid level monitoring

[0016] (2) For the liquid level control of the spent acid solution, the existing technical solutions usually directly return the spent acid solution to the clean acid, without distinguishing between the clean acid solution and the spent acid solution, so the waste acid solution level control without any monitoring measures

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