Submersible self-priming filter head of miniature desalination machine and working method of submersible self-priming filter head

Abstract

The invention relates to the field of sea water desalination, and in particular, relates to a submersible self-priming filter head of a miniature desalination machine and a working method of the submersible self-priming filter head. A rotational flow shell, a one-way valve A, a lower inclined baffle, a supporting frame, an upper inclined baffle and a one-way valve B are arranged in the filter headshell from bottom to top; three-stage filtration is carried out through three cavities from bottom to top, and the filtering capacity of the filtering head and the dirt containing effect of the multiple cavities are improved by means of cyclone separation in the first cavity and the inclined plate sedimentation principle in the second cavity and the third cavity respectively. The supporting framecan drive a sealing gasket to move up and down according to the negative pressure condition in the filter head, the blockage probability of the filter head is reduced, meanwhile, the flow channel area is increased, the gravity separation time is prolonged, a complex flow field and a water flow dead zone in the tank body are avoided, and the water-sewage separation efficiency is effectively improved. Main parts in the filter head are of a detachable structure, even if the filter head is blocked, internal parts can be rapidly cleaned by detaching the filter head, and the effect of rapid maintenance is achieved.

Description

technical field [0001] The invention relates to the field of seawater desalination, in particular to a submersible self-priming filter head of a miniature desalination machine and a working method. Background technique [0002] The self-priming filter head is a primary filter device connected to the micro-seawater desalination device through a pipeline; during the use of the micro-seawater desalination device, the self-priming filter head needs to be immersed in seawater, and the micro-seawater desalination device passes through the internal plunger pump The expansion and contraction of the seawater pumps the seawater into the seawater desalination device through the filter head and the connecting pipe. During this process, the self-priming filter head plays a role in filtering animals, algae plants and solid particles in seawater. [0003] The existing self-priming filter head adopts a structure in which a filter screen or a ceramic filter core wraps a support frame, and t...

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