CN2437389Y

CN2437389Y - Water filtering apparatus

Info

Publication number: CN2437389Y
Application number: CN 00237576
Authority: CN
Inventors: 宋泽智; 张文安; 董春德; 王彤
Original assignee: CHUANYU ELECTRICAL Co Ltd DANDONG CITY
Current assignee: CHUANYU ELECTRICAL Co Ltd DANDONG CITY
Priority date: 2000-06-16
Filing date: 2000-06-16
Publication date: 2001-07-04
Anticipated expiration: 2010-06-16

Abstract

The utility model relates to a water filtering apparatus, which comprises a tank, a pattern board, multiple fiber bundles, a capsule and a bubble diffuser. The main design points of the utility model are the bubble diffuser and the mounting position of the bubble diffuser. When the filter operates regeneration and backwashing, the compressed air enters the bubble diffuser through a pipeline and generates scattering bubbles, fluid vortices and surges inside the tank, which removes the dirt adhered on the fiber bundle in high-speed and high efficiency. The utility model can be configured with a pressure control unit for avoiding the misoperation which causes the water shortage in the tank. The utility model can be used as a corollary apparatus of a water purifying apparatus and other liquid filtering apparatuses.

Description

Water filtering device

The design belongs to the ancillary filter equipment in industry or the domestic use of water purification facility.

Being applied to water filtering device traditional in the water purification facility adopts granular material or fibrous matter as filtering material usually, these materials are arranged by certain granules grating or porosity, constitute fixing filter course, to realize filtering to solid impurity in the water body.This filter need regularly replace filtrate and clean, and gives to use and operation has brought inconvenience.

No. 87100467 patents of invention have designed a kind of fiber and have added the material filter.This design is the brush shape and arranges multi-component fibre in tank body, in the outside or the centre of multi-component fibre flexible membrane is set, and flexible membrane and tank skin constitute the compression chamber.Charge into the water or the gas of certain volume during work in the compression chamber, impose weighing apparatus level pressure power by flexible membrane to fiber, make the fibre bundle radial compression, because the loss in head of filter medium, the porosity of fiber exports gradually from entering the mouth to and diminishes, and realizes in-depth filtration.After removing the pressure of film to fiber, it is big that the fiber hole becomes, and realizes back flush easily.Yet this patent does not provide solution for the back flush device.

Existing in the market sale of product that meets above-mentioned patent design.The back flush device of this class filter adopts two kinds of schemes usually: a kind of is along tank skin ring-type compressed gas distributing pipe to be set, and a kind of is compressed gas to be set distribute comb in tank body.This dual mode all is to fibre bundle fixed position blow flow, owing to fixed-site, blowing direction are fixed, is easy to form the partial penetration air-flow, and is not satisfactory for the integral inverted developing result of fibre bundle.

The utility model has designed a kind of backwash dedicated devices of above-mentioned filter on the basis of existing technology, the efficient that is intended to improve the effect of backwash and improves backwash.

The utility model comprises: tank body, card, fibre bundle, capsule and pressurization relief tube; The tank body top is provided with water purification mouth, exhaust outlet and pressurization relief port, and the tank base center is provided with the mouth of a river, source, and tank wall is provided with the compressed gas inlet near bottom position; Card is fixed by tank body upper cover flange, is used for suspended fiber bundles; Multi-fiber bundle vertically is the brush shape along tank body and arranges; Capsule is fixed on the reserved opening of upper cover, along the tank body axis arranged, is positioned at the central authorities of multi-fiber bundle; The pressurization relief tube communicates with capsule by the pressurization relief port.The design's main points are bubble diffuser and installation site thereof.Bubble diffuser is the hollow part of a revolution shape, and its upper surface is shaped on the some bubble diffusion holes by circle distribution; The compressed gas inlet can be arranged on any part of bubble diffuser, and preferable scheme is tangentially to be provided with in bubble diffuser outer rim appropriate location; The inner chamber of bubble diffuser can be provided with gyrate groove or passage.Bubble diffuser should be installed in the center near pot bottom. is connected with compressed gas source by pipeline.The effect of bubble diffuser is: in the water filtering device backwash process, can produce dispersion shape bubble, liquid vortex in pot liquid and surge, reach the purpose that adheres to dirt on the efficient high-speed washing the fibre bundle.

Accompanying drawing is embodiment of the present utility model.

Fig. 1 is the structural representation of water filtering device.Comprise tank body 1, card 2, fibre bundle 3, capsule 4, bubble diffuser 5, pressurization relief tube 6, water purification mouth 7, exhaust outlet 8, compressed gas inlet 9, the mouth of a river, source 10 among the figure.

Fig. 2 is the fundamental diagram of water filtering device backwash process.Character explanation among the figure: a-compressed gas; The b-bubble; C-water; The d-dirt; Thin arrow is represented airflow direction; Thick arrow is represented water (flow) direction.The design's water filtering device has two kinds of runnings, filter process and backwash process.When operating in filter process, in capsule, charge into the water or the gas of certain pressure by the pressurization relief tube; Capsule applies radial pressure to fibre bundle, makes fibre bundle closely knit and have a less porosity; Water to be filtered enters filter through the mouth of a river, source, the fibre bundle of upwards flowing through, and the solid impurity in the water is stopped by fibre bundle or adsorbs; Water purification is by card, through water purification mouth outflow filter device.When operating in backwash process, make the capsule release by the pressurization relief tube, capsule shrinks; Fibre bundle is in relaxed state; Inject water purification from the water purification mouth, fibre bundle is sprayed; Feed compressed gas in the bubble diffuser, compressed gas rotates therein to collide and produces bubble and eddy flow, through the diffusion hole ejection of upper surface, forms dispersion shape bubble, vortex and surge in pot liquid; The dirt that fibre bundle adheres to or adsorbed by bubble or cleansed by current at the bottom of being deposited to gradually jar, is discharged filter through the mouth of a river, source; After the bubble that rises emerges, discharge through exhaust outlet.

Fig. 3 is the structural representation of bubble diffuser.Bubble diffuser can be designed to different revolution shape, and as discoid, coniform, segment shape etc., its inner chamber can be provided with swirl shape groove or passage.

Fig. 4 is the water filter schematic diagram that has been equipped with the pressurized control unit.Comprise tank body 1, card 2, capsule 4, pressurization relief tube 6, control cable W, water level detector X, controller Y, YE Z among the figure.Water level detector is installed in the appropriate location of tank skin, and YE is installed on the pressurization release pipeline, and controller links with water level detector and YE respectively by the control cable; Water level detector, controller, YE and control loop have constituted the pressurized control unit.The intention that is equipped with the pressurized control unit is as follows: under the situation that water level is low excessively in jar, if because of the maloperation water-filling that pressurizes in the capsule, capsule can not get the buoyancy of necessity and is in free gravity extended state, capsule can be broken when gravity is excessive.After the pressurized control unit had been installed, if jar interior water level is low excessively, water level detector will send a signal of telecommunication and give controller; Controller is handled YE work, cuts off pressure pipeline, and pressure fluid can not enter capsule; Water level rises in jar, and when meeting the requirements of height, pressure pipeline will be opened in the pressurized control unit, and pressure fluid can enter capsule; Thereby play the effect that the protection capsule is not damaged.

Characteristics such as the utility model has solved the weak point of water filter in the regeneration backwash operation preferably, and it is effective to have a backwash, and reproduction speed is fast, and is easy and simple to handle, safe and reliable.The design's water filtering device both can be used as the corollary equipment of water purification facility, also can be used as the filter plant of other liquid.

Claims

1, a kind of water filtering device comprises tank body 1, card 2, fibre bundle 3, capsule 4, pressurization relief tube 6, it is characterized in that: near bottom position, bubble diffuser 5 is housed in tank body; Bubble diffuser is the revolving body parts of a hollow, and its upper surface is shaped on the some bubble diffusion holes by circle distribution.

2, according to the described water filtering device of claim 1, it is characterized in that: in the cavity of bubble diffuser, be provided with the swirl shape groove.

3, according to the described water filtering device of claim 1, it is characterized in that: a water level detector is housed on tank skin, on the pressurization relief tube YE is housed, a controller links with water level detector and YE respectively by the control cable; Water level detector, controller, YE and control loop thereof have constituted the pressurized control unit of water filtering device.