Liquid level meter system applicable to evaporator hot well

Abstract

The invention discloses a liquid level meter system applicable to an evaporator hot well. The system comprises an impulse pipe, an upper end connector pipe, a liquid level meter, a film flushing pipe and a flushing pipe, wherein the upper end of the impulse pipe is used as the evaporator connecting end, and the lower end of the impulse pipe is used as a hot well connecting end; the upper end connector pipe, the flushing pipe and the film flushing pipe are sequentially arranged on an impulse pipe body from top to bottom; an upper air phase connector of the liquid level meter is connected with the upper end connector pipe, and a lower liquid phase connector of the liquid level meter is connected with the film flushing pipe. According to the system, the film flushing pipe is connected with the liquid phase connector of the liquid level meter, so that a liquid level meter film can be can be conveniently flushed with flushing solution from time to time, and attached matters can be dissolved, and as a result, the measuring accuracy of the liquid level meter can be ensured; the inclined flushing pipe is arranged on the impulse pipe; the impulse pipe is flushed from time to time with condensing liquid so as to ensure that the impulse pipe is smooth and not blocked; the method of the system ensuring the normal work of the liquid level meter of the evaporator hot well is able to prevent the liquid level meter film from being blocked by inorganic salt and floc subjected to crystallizing by evaporating, and thus the device running reliability can be improved.

Description

technical field [0001] The invention relates to the field of evaporation and crystallization equipment, in particular to a liquid level gauge system suitable for evaporator hot wells. Background technique [0002] High-concentration organic wastewater, especially landfill leachate, has extremely complex components and high content of organic matter and salt, COD cr and BOD5 can be up to 90000mg / L, 38000mg / L or even higher, and contain more than ten kinds of metal ions, among which iron and zinc are higher in the acidic fermentation stage, and the concentration of iron can reach about 2000mg / L; the concentration of zinc can be Up to about 130mg / L, the concentration of lead can reach 12.3mg / L, and the concentration of calcium even reaches 4300mg / L. The traditional leachate treatment method is the "biochemical + membrane filtration" method. The disadvantage of this method is that it will produce a high-concentration membrane concentrate that is difficult to handle. Therefore, ...

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Problems solved by technology

However, due to the complex water quality and high content of COD and inorganic salts, some inorganic salts and organic matter will be precipitated due to supersaturation during the evaporation and concentration process. It is easy to block the pressure diaphragm of the liquid level gauge, cause signal distortion and cause the automatic control system to fail, and then cause the evaporation device to start and stop frequently, and the liquid level gauge should be cleaned

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