CN2211847Y

CN2211847Y - Filter core

Info

Publication number: CN2211847Y
Application number: CN 94229973
Authority: CN
Inventors: 彭大宗
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-09
Filing date: 1994-12-09
Publication date: 1995-11-08
Anticipated expiration: 2004-12-09

Abstract

The utility model provides a filter core, characterized in that the utility model comprises a protective cover whose wall is provided with a through hole, and a frame contained in a hollow tube in the protective cover. The through hole is arranged on the wall of the hollow tube, a filter medium layer is spirally wound on the hollow tube, the through hole on the hollow tubes are sheltered by the filter medium layer, and at least one layer of the filter medium layer is arranged on the hollow tube. The utility model has advantages of simple structure, high filter precision and long service life, being widely used in food, wind class, material, chemical industry, brewing, electrogilding, environmental protection, etc.

Description

Filter core

The utility model relates to a kind of filter core.

At present domestic general employing of filtering technique that filtering accuracy is had relatively high expectations as filter types such as resins exchange, active carbon adsorption, the filtration of sand rod, cardboard filter, the filtration of various material braid, PEC microporous pipe.Adopt the weaving manner filtration of sand rod, various materials not reach required precision; Adopt regeneration and treatment technique such as resins exchange complex process, grasp difficulty, cost an arm and a leg; Adopt active carbon filtration to use back filter medium itself to become pollution sources again; Adopt the PEC microporous pipe to stop up easily, reduce service efficiency, though handle through regeneration such as recoil, acid, alkali, effect is also very undesirable; Adopt cardboard and some braid to filter, service life is short.

In view of above reason, the purpose of this utility model be for provide a kind of simple in structure, filtering accuracy is high, the filter core of long service life.

Have in the utility model and comprise the protective sleeve that through hole is arranged on the wall; contain the skeleton that places the hollow tube in the protective sleeve; on the hollow tube wall through hole is arranged; the filtering medium layer helically is wrapped on the skeleton of hollow tube and with the through hole on the hollow tube and covers; the filtering medium layer of hollow tube is at least one deck (referring to Fig. 1, Fig. 2); the quantity of filtering medium layer is with required and decide, with multilayer for well.

Above-mentioned filtering medium layer is wrapped in the cylindrical shell that forms on the hollow tube should concentric with hollow tube (referring to Fig. 2).

Hollow tube one end in the above-mentioned skeleton tightens the coupling arrangement that can be communicated with filter plant is housed, and hold down gag (referring to Fig. 1) is arranged on the other end that is positioned at hollow tube on the skeleton.

Baffle plate that is close on skeleton and the connector that is connected with baffle plate are arranged in the above-mentioned coupling arrangement; on the hollow tube other end screw plug is arranged; have at least one packaged in the hold down gag between hollow tube and protective sleeve and be pressed on pressing plate on the filtering medium layer end face; pressure ring is through on the screw plug; nut thread is connected on the screw plug and makes the pressure ring end face be pressed on (referring to Fig. 1) on the pressing plate; with nut the direction of pressure ring pressing plate to filtering medium layer compressed; as it is not enough to compress filter media density; then can increase pressing plate quantity; until reaching density requirements; but the through hole on the hollow tube tube wall in the skeleton is exposed to outside the filtering medium layer, as this situation occurs and should twine filter medium again and increase to twine height.

After the utility model has been assembled, use in the filter plant of packing into.During work; liquid (or gas) is by filter plant pressurization (or pressure of liquid or gas self); enter filtering medium layer by the through hole on the protective sleeve; because filter medium has suitable density; with in liquid or the gas greater than the material detention of this density outside filter medium; liquid or gas see through the filtration spacer assembly outflow that filtering medium layer enters filter plant by the through hole on the hollow tube wall in the skeleton to hollow tube inner chamber and coupling arrangement under pressure, and liquid that is flowed out or gas promptly reach the requirement of filtration.

As adopt pressurization or press certainly to enter by filtering medium layer by the skeleton inner chamber and flow out by protection tube, the utility model filter core still is suitable for, and the through hole on the hollow tube tube wall is suitably strengthened, and increases filter area under the prerequisite that guarantees hollow tube intensity as far as possible.

Compared with the prior art the utility model has following advantage:

1; simple in structure, processing and manufacturing is easy; can require to select for use different fibrous matters to do filter medium and winding thickness according to different filtering accuracies; total also can be selected any materials processing manufacturing for use by different needs; by the inner and outer diameter that how much changes filter cartridge construction of filtering traffic and the number of combinations of length and filter core; the scope of application is wide, and every low viscous liquid core material and gas all can use, as drinks, beverage, food, chemical industry, brewage, plating and environmental protection etc.

2, occurring stopping up the back except that employing " recoil method " is handled, also the filter medium disassembly, cleaning can be re-assemblied, filter medium is repeatedly used repeatedly, long service life is saved cost, has thoroughly solved the blockage problem that occurs in the filter process, just can not cause output to descend in the use because of the decline of filtration yield, the filter core that stops up cleans and re-assemblies simple and easy to do simultaneously.

3, coupling arrangement in the utility model and the fluid spacer assembly in the filter plant can adopt flexible connection, as long as add the filter core spare part, when needs cleaning used filter core, as long as change spare part after pulling down, do not influence ordinary production and save cost of equipment; The utility model can according to different situations and needs become movable, fixed when manufacturing and designing whole filter plant and the specification that varies in size to satisfy various requirement.

4, can adopt the way of clear water rinsing, environmentally safe when cleaning filter core.

Introduce embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that filtering medium layer and hollow tube mutual alignment concern schematic diagram.

Referring to Fig. 1, protection has several or hundreds of or thousands of through holes 2 on the jacket wall, and the hollow tube 4 in the skeleton 3 places in the protective sleeve 1, and the baffle plate 6 in the coupling arrangement 5 is welded on the end end face of protective sleeve 1, is welded with nut 7(on the baffle plate 6 and also can be external screw thread).Dozens of or hundreds of or thousands of through holes 8 are arranged on hollow tube 4 tube walls.Filter medium forms filtering medium layer 9 with spiral being wrapped in of multilayer (being two layers in the present embodiment) on the hollow tube.Filtering medium layer 9 is wrapped in the thickness requirement basically identical of hollow tube and concentric with hollow tube, and till the size of thickness was enclosed within on the hollow tube with protective sleeve more tightly, filter medium was to satisfy the various corpus fibrosums that different filtrations requires.The other end of hollow tube 4 tightens screw plug 10 is housed, and the pressing plate 12 in the hold down gag 11 is packed between protective sleeve and hollow tube, and the interior external diameter of pressing plate should make it to be free to slide between protection tube inwall and hollow tube outer wall with one heart.Pressure ring 13 is through on the screw plug, and nut 14 is threaded on the screw plug and the end face of pressure ring is pressed on the pressing plate.

Claims

1, filter core; it is characterized in that comprising in the described filter core protective sleeve that through hole is arranged on the wall; contain the skeleton that places the hollow tube in the protective sleeve; on the hollow tube wall through hole is arranged; the filtering medium layer helically is wrapped on the hollow tube and with the through hole on the hollow tube and covers, and the filtering medium layer on the hollow tube is at least one deck.

2, filter core as claimed in claim 1, it is characterized in that described filtering medium layer is wrapped in the cylindrical shell that forms on the hollow tube should be concentric with hollow tube.

3, filter core as claimed in claim 1 is characterized in that hollow tube one end in the described skeleton tightens the coupling arrangement that can be communicated with filter plant is housed, and on the other end that is positioned at hollow tube on the skeleton hold down gag is arranged.

4, filter core as claimed in claim 3; it is characterized in that baffle plate that is close on skeleton and the connector that is connected with baffle plate are arranged in the described coupling arrangement; on the hollow tube other end screw plug is arranged; have at least one packaged in the hold down gag between hollow tube and protection tube and be pressed on pressing plate on the filtering medium layer end face; pressure ring is through on the screw plug, and nut thread is connected on the screw plug and the pressure ring end face is pressed on the pressing plate.