CN201598211U

CN201598211U - Multi-stage filter element

Info

Publication number: CN201598211U
Application number: CN2009202008322U
Authority: CN
Inventors: 程建江; 孙虎; 毛中水
Original assignee: Zhejiang Rapid Environmental Protection Technology Co Ltd
Current assignee: Zhejiang Rapid Environmental Protection Technology Co Ltd
Priority date: 2009-11-26
Filing date: 2009-11-26
Publication date: 2010-10-06
Anticipated expiration: 2019-11-26

Abstract

The utility model mainly discloses a multi-stage filter element which comprises an inner shell, an outer shell and a shell seat, wherein the inner shell has a semi-closed structure with a bottom and no cover, and is internally provided with a water inlet pipe; the water inlet pipe is not contacted with the bottom of the inner shell; an inner annular screen is fixedly sheathed on the water inlet pipe close to the lower end thereof, and is fixedly connected with the inner wall of the inner shell; the screen, the water inlet pipe and the inner shell form a cavity, and a filter body I is arranged in the cavity; the outer shell has a semi-closed structure with a cover and no bottom; the upper end of the water inlet pipe is sheathed in a pipe mouth at the cover part of the outer shell; the outer shell is covered on the inner shell; a water outlet is arranged at the opening of the inner shell; a filter body II is arranged in a cavity formed by the inner shell and the outer shell; an outer annular screen is arranged at the bottom of the filter body II and connected with the inner shell and the outer shell; the lower end of the outer shell is sheathed with a shell seat; the upper middle part of the shell seat is provided with a filter body III; and a water outlet pipe is connected below the filter body III. The multi-stage filter element realizes multi-stage filtration, and guarantees the quality of drinking water; and the filter bodies can be detached freely for cleaning and replacement.

Description

Multistage filter core

Technical field

The utility model relates to the filter core in the water purifier, realizes that with a kind of the filter core of cascade filtration is relevant especially.

Background technology

Existing filter element of water purifier is the core component in the water purifier, after the water source enters water purifier, by filter element filtering, the planktonic organism in the water, molecule, bacterium etc. is removed.The function that different filter body is realized is different, can adsorb heterochromatic, peculiar smell such as gac, and ultra-filtration membrane is removed seston and particle in the water, and ceramic membrane can be removed in the water bacterium etc.

When common multi-stage filter core is realized filtering, need multiple arrangement, hold the filter body of different types in the different device.Structure more complicated like this takies bulkyly, is not suitable in the household small-size water purifier.

In addition, the filtering material of filter body is using the long period rear surface easily by the microorganic adhesion such as bacterium in the water, and such as gac, high-precision micropore ceramic, hollow fiber ultrafiltration membrane etc., its surperficial micropore stops up easily, cause these filtering material utilization ratios low, filter effect is not good.Therefore filtering body needs discontinuity to clean, and recovers its strainability.

And general filter core, after the production moulding, the filter body of the inside just can't be dismantled, and after causing using for some time, strainability reduces, and influences the quality of tap water.And can't change needed filter body according to practical situation.

In view of the defective of above-mentioned existence, the inventor improves existing filter core, and this case produces thus.

The utility model content

Main purpose of the present utility model provides a kind of multistage filter core, realizes the cascade filtration at water source, obtains the high quality tap water.

Another purpose of the present utility model provides a kind of multistage filter core, and user oneself can freely dismantle, clean or change the filter body in the filter core, keeps the high efficiency filter of filter core.

To achieve these goals, the scheme that the utility model adopted is:

Multistage filter core comprises inner housing, body skin and housing seat; Inner housing is the semi-closed structure that end non-cover type is arranged, and has water inlet pipe in it, and water inlet pipe does not contact with the inner housing bottom, and water inlet pipe is near being installed with web plate in the ring-type on the lower end simultaneously, and web plate is fixedlyed connected with the inwall of inner housing simultaneously in the ring-type; Be placed with filter body one in the inner chamber that web plate, water inlet pipe and inner housing constituted; Body skin covers the formula semi-closed structure for the no end, and the upper end of water inlet pipe is socketed in the mouth of pipe of body skin cap, and body skin covers on outside the inner housing, and the aperture position of inner housing is provided with water outlet; Has filter body two in the exocoel that between inner housing and body skin, forms; The ring-type that filter body two bottom settings and inner housing are connected with body skin is web plate outward; On the body skin lower end, be with the housing seat, the middle and upper part branch of housing seat is equipped with filter body three, beneath connection rising pipe.

The utility model can also be further perfect:

Between the mouth of pipe of the upper end of described water inlet pipe and body skin cap, adopt screw thread in succession, also be provided with sealing-ring simultaneously.

Between described housing seat and the body skin lower end, adopt screw thread in succession, also be provided with sealing-ring simultaneously.

The outer web plate of described ring-type is connected the employing helicitic texture with inner housing with body skin, be provided with sealing-ring simultaneously.

The cap of described body skin has escape pipe.

Described filter body one is a kind of in gac, granular filter material, the ceramic membrane.

Described filter body two is a kind of in hollow fiber ultrafiltration membrane, KDF (Kai Defei) filtrate.

Described filter body three is a kind of in high-density non-woven fabrics, activated carbon fiber, PP (polypropylene) fiber.

After adopting said structure, the utility model can be implemented in and sets up multistage filter body in the device separately, guarantees the quality of tap water.Simultaneously, three filter bodies of different sites can disassemble, and regularly the filter body are cleaned or change, and make strainability keep optimum regime, can also freely arrange in pairs or groups according to actual needs and filter body, satisfy user's various demands.

Description of drawings

Fig. 1 is a cross-sectional view of the present utility model.

Embodiment

In conjunction with the accompanying drawings, the utility model is described in detail.

Multistage filter core comprises inner housing 1, body skin 2 and housing seat 3.

Inner housing 1 has water inlet pipe 4 for the semi-closed structure of end non-cover type is arranged in the inside of inner housing 1.Water inlet pipe 4 leaves certain slit with inner housing 1 bottom, is installed with web plate 5 in the ring-type on the position of water inlet pipe 4 near lower end simultaneously, has mesh 6 on the web plate 5 in the ring-type.Web plate 5 is also fixedlyed connected with the inwall of inner housing 1 in the ring-type.Be placed with gac 7 in web plate 5, water inlet pipe 4 and the inner housing 1 formed inner chamber in the ring-type, this is a filter body one.

Body skin 2 covers the semi-enclosed structure of formula for the no end, and the upper end of water inlet pipe 4 is connected threadably with the mouth of pipe 8 of body skin 2 caps, and the centre also is with sealing-ring 1.Body skin 2 just covers on outside the inner housing 1 like this, and after fixing, goes out to be provided with water outlet 15 at the aperture position and body skin 2 caps of inner housing 1.

Be placed with KDF filtrate 10 in the exocoel that between inner housing 1 and body skin 2, forms as filter body two.The outer web plate 11 of the ring-type that the bottom of KDF filtrate 10 has.The outer web plate 11 of ring-type is connected the employing helicitic texture with inner housing 1 with body skin 2, also have mesh above.

On body skin 1 lower end, be with housing seat 3, its socket mode also adopts helicitic texture, and the centre also is provided with sealing-ring 2 12.High-density non-woven fabrics 13 is equipped with as filter body three in the position in the inside of housing seat 3, connects rising pipe 14 under the housing seat 3.

In addition, also have escape pipe 16 on the cap position of body skin 2 of the present utility model, it is smooth more to make water flow.Simultaneously above-mentioned filter body also be not limited to for example, granular filter material, ceramic membrane, hollow fiber ultrafiltration membrane, PP polypropylene fibre all are the preferable filter bodies commonly used of performance.

The utility model is in when work, the represented direction of arrow among its flow direction such as the figure.At first water flows into the bottom of inner housing 1 from water inlet pipe 4, enters in the gac 7 by the mesh on the web plate in the ring-type 56 then, with planktonic organism, molecule, bacterium absorption, removes heterochromatic, peculiar smell simultaneously.Enter in the KDF filtrate 10 through water outlet 15 then, remove heavy metal, hydrogen sulfide, the fouling of minimizing mineral, also suppress microbial reproduction.Then water flows out the mesh of web plate 11 outside ring-type again, enters high-density non-woven fabrics 13 and carries out hydrophobic treatment, final outflow from beneath rising pipe 14.

The utility model is implemented in the device and sets up cascade filtration separately, and volume is little, and the strainability height is guaranteed the quality of tap water.And three filter bodies of different sites can disassemble, and discontinuity is cleaned or changed the filter body, makes strainability keep optimum regime.Can also freely arrange in pairs or groups according to actual needs and filter body, satisfy user's various demands.

Claims

1. multistage filter core is characterized in that: comprise inner housing, body skin and housing seat; Inner housing is the semi-closed structure that end non-cover type is arranged, and has water inlet pipe in it, and water inlet pipe does not contact with the inner housing bottom, and water inlet pipe is near being installed with web plate in the ring-type on the lower end simultaneously, and web plate is fixedlyed connected with the inwall of inner housing simultaneously in the ring-type; Be placed with filter body one in the inner chamber that web plate, water inlet pipe and inner housing constituted; Body skin covers the formula semi-closed structure for the no end, and the upper end of water inlet pipe is socketed in the mouth of pipe of body skin cap, and body skin covers on outside the inner housing, and the aperture position of inner housing is provided with water outlet; Has filter body two in the exocoel that between inner housing and body skin, forms; The ring-type that filter body two bottom settings and inner housing are connected with body skin is web plate outward; On the body skin lower end, be with the housing seat, the middle and upper part branch of housing seat is equipped with filter body three, beneath connection rising pipe.

2. multistage filter core as claimed in claim 1 is characterized in that: between the mouth of pipe of the upper end of described water inlet pipe and body skin cap, adopt screw thread in succession, also be provided with sealing-ring simultaneously.

3. multistage filter core as claimed in claim 1 or 2 is characterized in that: between described housing seat and the body skin lower end, adopt screw thread in succession, also be provided with sealing-ring simultaneously.

4. multistage filter core as claimed in claim 3 is characterized in that: the outer web plate of described ring-type is connected the employing helicitic texture with inner housing with body skin, be provided with sealing-ring simultaneously.

5. multistage filter core as claimed in claim 4 is characterized in that: the cap of described body skin has escape pipe.

6. multistage filter core as claimed in claim 5 is characterized in that: a kind of in gac, granular filter material, the ceramic membrane of described filter body one.

7. multistage filter core as claimed in claim 6 is characterized in that: a kind of in hollow fiber ultrafiltration membrane, the KDF Kai Defei filtrate of described filter body two.

8. multistage filter core as claimed in claim 7 is characterized in that: a kind of in high-density non-woven fabrics, activated carbon fiber, the PP polypropylene fibre of described filter body three.