A high-efficiency nanofiltration membrane cleaning device

Abstract

The invention discloses an efficient nanofiltration membrane cleaning device which mainly comprises a heat exchanger, a main pump, a supplement pump, a water pump, a circulating tank, an acid washing tank, an alkali washing tank, an enzyme washing tank, a surfactant washing tank, a pure water tank, membrane shells, pipelines and an electric valve, wherein an outlet of the pure water is connected with inlets of the acid washing tank, the alkali washing tank, the enzyme washing tank and the surfactant washing tank through a first pipeline; the water pump is arranged on the first pipeline; outlets of the pure water tank, the acid washing tank, the alkali washing tank, the enzyme washing tank and the surfactant washing tank are connected in parallel through a second pipeline, and the heat exchanger and the main pump are connected in series and then are connected to a lower port of the circulating tank; a first upper port of the circulating tank is connected with a first port of the membrane shells through a third pipeline; a second upper port of the circulating tank is connected with a second port of the membrane shells through a fourth pipeline; and a third port of the membrane shells is connected with the inlet end of the heat exchanger through a fifth pipeline. The efficient nanofiltration membrane cleaning device has the characteristics of good cleaning effect and high cleaning efficiency and can realize efficient cleaning of the membranes in batches.

Description

technical field [0001] The invention relates to a membrane cleaning device, in particular to a high-efficiency nanofiltration membrane cleaning device. Background technique [0002] Nanofiltration technology has the advantage of relatively mild operating conditions. Compared with evaporation, freeze-drying, etc., there is no phase change, and it does not cause changes in temperature and pH, thereby preventing denaturation, inactivation and autolysis of biological macromolecules. At the same time, nanofiltration The membrane equipment used in the filtration technology occupies a small area, is easy to operate, low in cost, and does not need to add any chemical reagents. Therefore, nanofiltration technology and its membrane equipment have been widely used in the separation, concentration and purification of food, medicine, water treatment and other industries. The company uses nanofiltration technology in blood treatment to produce environmentally friendly high-quality animal...

AI Technical Summary

Problems solved by technology

The company uses nanofiltration technology in blood treatment to produce environmentally friendly high-quality animal protein, and has achieved very good results. However, the cleaning of a large number of nanofiltration membranes in the production process has become a problem that restricts the company's production: on the one hand, The pollutants contained on the nanofiltration membrane used for blood treatment are complex, especially containing a large amount of biomass. The traditional simple pickling and alkali washing cannot completely clean the membrane; on the other hand, the cleaning system including CIP The processing equipment cannot realize batch membrane cleaning, which restricts the production efficiency of the enterprise

Images