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A retractable filter

A filter and telescopic technology, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve problems such as difficult alignment of threaded holes, shortening the service life of filter elements, waste of filter element resources, etc., to facilitate replacement and inspection , reduce hidden dangers, and facilitate disassembly

Inactive Publication Date: 2015-11-18
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This connection method is difficult to ensure that the threaded holes of the two parts are aligned
[0004] The filter elements of the existing filters are integral, and the entire filter element needs to be replaced when the filter element is blocked, but the entire filter element of the filter is not blocked, which wastes the filter element resources and shortens the service life of the filter element

Method used

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  • A retractable filter
  • A retractable filter
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Examples

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Embodiment Construction

[0032] The filtered liquid in this embodiment is hydraulic oil.

[0033] Such as Figure 1 ~ Figure 4 As shown, the telescopic filter consists of the third stage of the filter 1, the bypass valve 2, the hose connector 3, the inner sleeve 4, the lower part of the first stage of the filter 5, the one-way valve 6, the end cap 7, and the second filter. Upper level 8, inner and outer guide ring 9'9, inner and outer sealing ring 10'10, inner and outer upper guide bushing 11'11, inner and outer sealing retaining ring 12, paper filter element 14, mesh filter element 15, inner and outer inner key 16' 16. The inner and outer lower guide bushing 17'17, the second filter stage 18, the circular baffle 19, the middle magnetic rod 20, the hose joint 21, etc., including the inner and outer guide ring 9'9, the inner and outer sealing ring 10'10 The inner and outer upper guide bushing 11'11 constitutes the guiding seal positioning link, the inner and outer inner key 16'16 and the inner and outer ...

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Abstract

The invention discloses a telescopic filter which consists of a plurality of telescopic stages, and comprises a first stage of filter, a second stage of filter and a third stage of filter; a three-stage filtering way is formed by net type filter cores, paper filter cores and magnetic bars which are respectively arranged in the multiple stages of filters; internal hydraulic oil entering the filters or an external hydraulic oil source is adopted to control the extension of the stages of filters; the stages of filters can slide in a cylinder barrel between a shell of the first stage of filter and a welding steel cylinder, so that the filter cores of the filters can fully stretch for filtering; the filters can filter in the manner that hydraulic oil enters the filters through an oil hole of a one-way valve, and then the stretching filter cores are used for fully filtering. The pressure alarm and signal transmission can be carried out by a pressure relay of the system. When outlets of the filters are blocked and the filter cores need to be replaced, the stages of filters can retract into a first stage of cylinder barrel by virtue of the external hydraulic oil source so as to be disassembled. The filter is compact in structure, good in effect of three-stage filtering, simple to install and convenient to disassemble.

Description

Technical field [0001] The invention relates to a filter, in particular to a telescopic filter. Background technique [0002] Common filters in engineering can be divided into integral filters and split filters according to different structures. Integral filters have the advantages of simple structure and convenient overall installation and disassembly; the disadvantages are that they are large in size and relatively large in installation space to meet the filtering accuracy. Because the filter generally meets the filtering accuracy by increasing the length of the filter element in the filter, the filter element should be installed in the filter as a whole, so the volume of the filter will be very large. [0003] The principle of the split filter is to put the second part into the filter, install it on the hydraulic circuit, and then install the first part on the second part, and then connect the two parts with bolts. This connection method is difficult to ensure that the threade...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C1/30
Inventor 郭锐赵静一王艳云敬康
Owner YANSHAN UNIV
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