CN2936387Y - Filter - Google Patents

Abstract

The utility model discloses a simple liquid filtration device. An elliptical filter screen is arranged on an intersection of a thread equilateral diameter three-way tube, the filter screen face towards to the side tube opening so that the filtered dirt can be collected on the three-way side tube opening; a straight tube is diagonally cut into a supporting seat of a filter screen and a pressure tube and inserted into a side tube opening and a water outlet of the three-way pipe separately, thereby positioning and supporting the elliptical filter screen. The pressure tube and the filter screen is pressed tightly with a thread end cover. The thread end cover can be disassembled if necessary to clear away filtered dirt, even the filter screen can be disassembled for washing or replacement. The utility model has the advantages of simple structure and large flow area, the filtered dirt can be easily guided to non flow surface, the pipe fittings are standard parts except elliptical filter screen and sealing ring, thus the cost is low.

Description

A kind of simple filtering device

Technical field

The utility model belongs to water treatment and fluid device field.

Background technology

In liquid handling fields such as water treatments, often need filter, to remove fixed substance wherein to liquid.The main way of liquid filtering is that screen pack is set in liquid is flowed through process, and the problem of required solution comprises filters separation and the cleaning of removing, water resistance, screen pack etc. of solid matter from the runner.Existing filter is a lot, and the big type filter of complex structure, band backwash is arranged, and also has the filters such as Y type that small-sized, screen pack can disassembly, cleaning.But these filters are the cost height all, though the screen pack of y-type filter can disassembly, cleaning, itself all needs special manufacturing its screen pack and device.

Summary of the invention

The present utility model a kind of simple in structure, cost is lower, screen pack can disassembly, cleaning filter.This device is installed in the infall of isometrical screw thread three-way pipe with an ellipse screen pack, and screen pack is towards the side pipe mouth; The minor axis of oval screen pack is the caliber of three-way pipe infall; A straight tube cut sth. askew forms screen pack bearing and pressure pipe, inserts in the three-way pipe delivery port respectively and in the side pipe mouth, forms support and location to oval screen pack; In order to guarantee sealing, make corresponding ellipse garden RunddichtringO, be placed between ellipse garden type filter net sheet and bearing and the pressure pipe; Open one and the essentially identical hole of threeway caliber in the tube head above-head, so that liquid flows into.

If adopt isometrical plus thread threeway, promptly the side pipe center line becomes 90 ° with the straight tube center line, and then the major axis of oval screen pack is 2 times of the √ of minor axis, and screen pack base and pressure pipe should be cut sth. askew 45 °; If adopt isometrical bevel arm piece, promptly the side pipe center line becomes the α angle with the straight tube center line, then the major axis of oval screen pack be minor axis 1/SIN (α/2) doubly, screen pack base and pressure pipe 90 °-α/2 of should cutting sth. askew.This two modes all require phase ellipse garden RunddichtringO just with it.

Compare with common garden type screen pack, the transition area of ellipse garden screen pack increases more than 50%, and, because filter area has an inclination to screw thread three ports, the impurity diversion transition area that some are filtered accumulates near screw thread three ports, thereby can guarantee the cleaning of flow-passing surface better, increase effective inflow-rate of water turbine, improve maintenance period.Compare with y-type filter, strainer body adopts the pipe fitting of standard, and the manufacturing of screen pack is also simple relatively, and whole cost is much lower.

Description of drawings

Be the filter schematic diagram shown in the utility model as illustrated in fig. 1 and 2. One ellipse screen pack is installed At the infall of straight tee, screen pack is towards the side pipe mouth, in order to the dirt that filters is collected in three Logical side pipe mouth place; The minor axis of oval screen pack is the caliber of three-way pipe infall, and a straight tube is cut sth. askew Form to filter reticulum and pressure pipe, insert respectively in the threeway in the delivery port and in the side pipe mouth, form oval mistake The location of filter screen is inserted tube head at the side pipe mouth and is opened a hole identical with the threeway caliber, so that liquid flows into. The bearing of screen pack is compressed by the water pipe of delivery port. The major axis of oval screen pack is true according to the form of three-way pipe Fixed. If isometrical positive three-way pipe, namely the side pipe center line becomes 900 with the straight tube center line, then oval screen pack Major axis be 2 times of the √ of minor axis, screen pack base and pressure pipe should correspondingly cut sth. askew 450. If three-way pipe is isometrical Bevel arm piece, namely the side pipe center line becomes the α angle with the straight tube center line, and then the major axis of oval screen pack is short The 1/SIN of axle (α/2) times, screen pack base and pressure pipe should the corresponding 900-α that cuts sth. askew/2 degree. This design, Oval screen pack can conveniently be packed into from the side pipe mouth of threeway.

If adopt the screw thread straight tee, after screen pack and pressure pipe installation, compress with Screw-thread sealing plug. Must When wanting, can dismantle this Screw-thread sealing plug, remove the dirt that is filtered in the three-way pipe; Can also advance one Step dismounting pressure pipe is cleaned in earnest or is changed in order to screen pack disassembled.

In order to guarantee the screen pack peripheral sealing, a kind of ovaloid seal need to be installed between screen pack and bearing Circle. A kind of attacker of Net-based Design can also filtered, in order to dismantle easily or install screen pack.

Y-type filter is simple in structure except having for this elliptical filter, screen pack disassembling cleaning, mistake The filter dirt easily is directed to outside the advantage such as non-flow-passing surface, and also having housing, not need special manufacturing (be common mark Accurate part), screen pack is made the advantages such as simple, that area of passage is big.

Accompanying drawing 1: the principle schematic of isometrical positive T-shape filter

Accompanying drawing 2: the principle schematic of isometrical skew T filter

Accompanying drawing 3: example structure figure

Accompanying drawing 3 is embodiment of the present utility model.This device comprises isometrical screw thread threeway 1, bearing 2, pressure pipe 3, oval screen pack 4, ovaloid seal circle 5 and the Screw-thread sealing plug 6 of a φ 32.Because the φ 32 isometrical screw thread threeways of national standard are slightly less than φ 32 at the caliber of infall, therefore, the straight tube external diameter car of φ 32 need be become φ 30, cut sth. askew 450 again, separately behind the two halves, half is as bearing 2, and second half reprocesses out a diameter at the angle top be half mouthful of φ 30, as pressure pipe 3.The delivery port of bearing 2 from threeway inserted, and the opening symmetry is towards the side open pipe mouth place of threeway.Sealing ring 5 and screen pack 4 are installed again, and pressure pipe 3.Oval screen pack can be chosen the stainless (steel) wire in different apertures as required, and its minor axis is 30, and major axis is 42.3.Pressure pipe 3 mouths of pipe are inside, and angle and screen pack 4 on it are well fitted.Outlet conduit 7 is installed, bearing 2 is compressed; Tighten the Screw-thread sealing plug 6 of φ 32, pressure pipe 3, screen pack 4, sealing ring 5 and bearing 2 are compressed.This is a kind of simple structure of the present utility model.Obviously, the Screw-thread sealing plug 6 of dismantling just can converge dirt to threeway side pipe mouth and clear up, and screen pack 4 can also be removed and clean or change.Usefulness simple in structure, easy to maintenance.Because except that oval screen pack 4 ovaloid seal circles 5, the whole adoption of existing standard pipe fittings of other parts of this filter are made, cost is lower.

Claims (4)

1, a kind of simple filtering device is characterized in that: an ellipse screen pack is installed in the infall of straight tee, and screen pack is towards the side pipe mouth; The minor axis of oval screen pack is the caliber of three-way pipe infall; A straight tube cut sth. askew forms screen pack bearing and pressure pipe, inserts in the three-way pipe delivery port respectively and in the side pipe mouth, forms support and location to oval screen pack; Open one and the essentially identical hole of threeway caliber in the tube head above-head, so that liquid flows into.

2, filter as claimed in claim 1 is characterized in that: three-way pipe is isometrical screw thread threeway, and seal with Screw-thread sealing plug at the place at the side pipe mouth.

3, filter as claimed in claim 2 is characterized in that: three-way pipe is isometrical positive three-way pipe, and promptly the side pipe center line becomes 90 ° with the straight tube center line, and then the major axis of oval screen pack is 2 times of the √ of minor axis, and screen pack base and pressure pipe should be cut sth. askew 45 °.

4, filter as claimed in claim 2, it is characterized in that: three-way pipe is isometrical bevel arm piece, be that the side pipe center line becomes the α angle with the straight tube center line, then the major axis of oval screen pack be minor axis 1/SIN (α/2) doubly, screen pack base and pressure pipe 90 °-α/2 of should cutting sth. askew.

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