Filtering mechanism of filter and non-clogging high-precision sewage filter

Abstract

The invention relates to a filtering mechanism of a filter and a non-clogging high-precision sewage filter. The filtering mechanism of the filter comprises a metal sintering net, a clearing device, a high-pressure water supply device and a drive mechanism, wherein one end of the metal sintering net is sealed, and a standard flange is welded at the other end of the metal sintering net; the clearing device comprises a drive rod and a pressure plate connected to one end of the drive rod, the pressure plate is arranged in the metal sintering net and provided a plurality of high-pressure water jetting orifices facing the metal sintering net, and the high-pressure water jetting orifices are connected with the high-pressure water supply device through channels formed in the drive rod and the pressure plate; the clearing device is further connected with the drive mechanism which can drive the clearing device to move up and down in the metal sintering net. Silt in an oil field pipeline and various kinds of sewage difficult to treat can be continuously treated in a mass flow manner, and filtering equipment cannot be clogged and can operate efficiently for a long term.

Description

technical field [0001] The invention relates to a filter, in particular to a filtering mechanism of a filter and a non-clogging high-precision sewage filter. Background technique [0002] In recent years, the pollution of the environment and water resources has been increasing. The state attaches great importance to the recycling and reuse of industrial sewage and the discharge of waste water. It requires industrial sewage to meet the waste water discharge standards stipulated by the state to effectively protect the environment. After sewage treatment, it can be reused. The standard can not only solve the problem of sewage discharge, but also save the cost of water. The method to achieve this purpose is generally to apply a filter with automatic backwashing function, use the filter to directly intercept impurities in the water, remove suspended solids and particulate matter in the water body, reduce turbidity, purify water quality, and reduce system dirt, bacteria and algae,...

AI Technical Summary

Problems solved by technology

[0005] 1. The efficiency of sediment treatment is low, and the sediment content in the circulating water produced during the oil production process is very large, and the general self-cleaning filter equipment used for circulating water cannot meet the requirements

[0006] 2. The problem of fouling and clogging cannot be solved. At present, the automatic cleaning method of more advanced filter equipment in the market is to send a differential pressure signal according to the degree of clogging of the filter screen to start the cleaning system. Some positive pressure backwashing methods, some Negative pressure suction method, and some of them are applied at the same time

A key issue here is that when the filter generates a differential pressure signal, it indicates that the filter has been seriously blocked, that is, the internal capillary gap of the filter has been filled with dirt. Research has found that the dirt in the capillary gap of the filter is attached The longer it takes the harder it is to remove

In addition, only when it is cleaned every time can it maintain a long-term transparent effect, otherwise it will slowly lose the filtering function

At present, the cleaning interval of the filter equipment on the market is too long, and the cleaning force is not enough each time, and the cleaning is not thorough enough, which affects the application efficiency and service life of the filter.

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