Rotational flow high-pressure-difference filter and manufacturing method

Abstract

The invention discloses a rotational flow high-pressure-difference filter and a manufacturing method. The filter comprises a core body and a shell, and the core body comprises a gasket, a core body transition section, a core body plate sheet, a core body settling section and a core body end which are sequentially connected in a welded mode. The filter is made of a 4-6mm stainless steel plate, the strength problem caused by the front-back pressure difference of the filter screen can be sufficiently solved, a 0.3 mm micro channel is etched in the steel plate by adopting a chemical etching technology, and the filtering requirement can be sufficiently met; meanwhile, an inlet is tangent to a main pipe section of the filter, airflow tangentially enters the filter, air flow rotationally flows in the filter and flows downwards in the axial direction at the same time, impurities diffuse all around under the action of centrifugal force and finally settle downwards, a settling section is designed on the lower portion of the filter, a filter element of the settling section is not provided with a cavity and can be regarded as a dead zone, the flow speed is low, and a space is created for settling of solid impurities, so the filter can bear high pressure difference, fine particles are filtered, and the filtering effect is good.

Description

technical field [0001] The invention relates to the design, manufacture and processing of a filter, in particular to a cyclone high pressure differential filter and a manufacturing method. Background technique [0002] Printed circuit heat exchanger (PCHE) belongs to the category of microchannel plate heat exchanger. PCHE has the advantages of compact structure, high temperature resistance, heat transfer resistance, safety and reliability, etc. It is widely used in refrigeration and air conditioning, oil and gas, nuclear industry, chemical industry, electric power industry and other fields. However, this kind of heat exchanger also has some defects in use. The main problem is that the channel of the PCHE heat exchanger is too small, it is very easy to block, and once it is blocked, it is difficult to clean. Therefore, it is generally necessary to install a filter before the inlet of the heat exchanger. [0003] But generally speaking, the channels of PCHE heat exchangers a...

AI Technical Summary

Problems solved by technology

On the other hand, PCHE heat exchangers are generally used in high-pressure situations. Once the filter screen is blocked, the pressure drop between the front and back will be very large, so the filter screen may need to withstand very large front-to-back pressure.

However, the current filter screens either have a large pore size, which cannot meet the filtering needs. The filter screen with a small pore size usually uses a wire mesh support. , generally cannot withstand the huge front-to-back pressure difference, which will cause the screen to break

Images