Device for regenerating and layering mixed-bedresin

Abstract

The invention discloses a device for regenerating and layering mixed-bed resin, which consists of a mixed-bed water inlet device, a drainage device, a regeneration device, a water distribution device,an air exhaust valve, a compressed air inlet valve, and a low-frequency sound wave generator. The compressed air inlet valve, the low-frequency sound wave generator, the water distribution device, and the air exhaust valve are arranged in series from bottom to top;during backwashing layering, a backwashing water inlet valve and an upper middle drain valve are opened,after water comes out of the upper middle water drain valve, the backwashing water inlet valve and the upper middle drain valve are closed, then the compressed air inlet valve is opened, the low-frequency sound wave generator starts working, exhaust of the low-frequency sound wave generator is differentiated into tiny uniform bubbles when passing through the water distribution device, the bubbles enter the bottom of a resin layer and lift the resin layer up, low-frequency sound waves enter the resin layer through small holes of the water distribution device, the oscillation of the sound waves repeatedly acts on the resin layer to be floated up and down together with a liquid medium, the loosened resin layer reaches a certain expansion ratio, and the true density difference of anion and cation resinsin a wet state is used for achieving the purpose of layering.

Description

technical field [0001] The invention relates to the field of ion exchange demineralization resin and a device for regeneration and stratification of mixed bed resin. Background technique [0002] In a thermal power plant, boilers, steam turbines and other auxiliary equipment make up the thermal system. Water enters the boiler to absorb the chemical energy released by the fuel and turns it into steam, and the thermal energy of the steam in the steam turbine is converted into mechanical energy, and the steam turbine drives a generator to convert the mechanical energy into electrical energy. Therefore, water is an important working medium for energy conversion. In order to ensure the normal operation of boilers and steam turbines, boilers have strict requirements on the quality of all water used. At present, the most widely used method for power plant water treatment is ion exchange desalination technology, among which mixed bed ion exchange desalination is an efficient and w...

AI Technical Summary

Problems solved by technology

In actual operation, the effect of hydraulic backwash stratification is not ideal. It is often necessary for operators to adjust the manual valve of the backwash outlet water on site to improve the effect of backwash stratification, and the opening of the backwash inlet valve during backwashing of the mixed bed ion exchanger and closing will cause short-term fluctuations in the water output of the upstream yin and yang floating beds, which will cause disorder in the resin layer

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