CN107149801A - Accurate filter - Google Patents

Abstract

The invention discloses a kind of accurate filter, including：Filter body, support frame and mounting seat, the support frame is arranged on a side end face of the filter body, the mounting seat is arranged on another side end face of the filter body, some metafiltration nets are fixed with inside the filter body, the center line of the filter body is provided with hush pipe, and the upper end of the hush pipe is stretched out outside filter body.The present invention have improve efficiency, it is cost-effective, be easy to management the features such as.

Description

Accurate filter

Technical field

The present invention relates to a kind of accurate filter.

Background technology

For the area of shortage of water resources, most of crops are poured using drip irrigation zone, but general agricultural irrigation water, Pollutant is relatively more, and main pollutant includes：The residual branch of soil, sand grains, plant, leaf, mineral chip, plastic film scraps etc. The Organic pollutant such as viscous secretion that the growth such as physical pollution thing and bacterium, fungi is produced, and water is used in drip irrigation zone Filtering is needed to reach that certain standard could be used, otherwise can clogging drip irrigation band.At present, the mode master filtered to agricultural irrigation water There are three kinds：Natural subsidence, sandstone filtering, the filtering of net formula.Natural subsidence needs to build a large pool, also to pass through one The fixed time makes proportion be deposited in basin bottom more than debris such as soil, the grains of sand, the mineral chips of water, but is needed in summer During a large amount of agricultural waters, it is impossible to meet water consumption, the proportion such as organic-biological, plastic sheeting, algae for suspending in water is less than The material of water can not be removed effectively, and it is costly to build large pool；Sandstone filtering is general to be held by the pressure equipped with sandstone Device is filtered, and because of the limitation of pressure vessel capacity, handles the less efficient of water, and pollutant causes to set in pressure vessel Standby self-cleaning effect is not good, it is necessary to frequently backwash.Well strainer at this stage has two kinds of forms, and the first is water from mistake Filtered inside screen tube to outside filtering net cylinder, it is another be water outside filtering net cylinder to filtering net cylinder self-filtering, for It has self-stripping unit with the first well strainer, in backwash process, has the inwall that partial impurities are attached to filter screen On, the impurity being attached on filter screen inwall rinsed by high pressure nozzle is more difficult to remove, and the screen pack in individual backwash process Outer surface, which turns into, rinses blind area, and the impurity for being attached to filter screen outer wall will be unable to remove, and have a strong impact on the effect of filter screen self-cleaning Really；Also there is the pollutant after self-stripping unit, but cleaning to be deposited in the bottom of filter for another well strainer Or swim in around filter, accumulate to a certain extent, the extreme difference that the water quality around filter screen can become, these pollutants Screen pack can still be blocked.

The content of the invention

It is an object of the invention to provide one kind have improve efficiency, it is cost-effective, be easy to management the features such as precision Filter.

In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of accurate filter, including filter sheet Body, support frame and mounting seat, the support frame are arranged on a side end face of the filter body, and the mounting seat is set Put on another side end face of the filter body, some metafiltration nets, the filtering are fixed with inside the filter body The center line of device body is provided with hush pipe, and the upper end of the hush pipe is stretched out outside filter body, and the filter body includes The hafnium alloy of outermost titanium alloy and internal layer, described titanium alloy accounts for the 34%-43% of the overall component of filter body, described Hafnium alloy accounts for the 57%-66% of the overall component of filter body.

In a preferred embodiment of the present invention, the number of plies of the filter screen is 4 layers.

In a preferred embodiment of the present invention, described titanium alloy accounts for the 38% of the overall component of filter body, described Hafnium alloy accounts for the 62% of the overall component of filter body.

The present invention accurate filter have improve efficiency, it is cost-effective, be easy to management the features such as.

Embodiment

It the above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can Content according to specification is practiced, and technical scheme is further described with a preferred embodiment below.

A kind of accurate filter, including filter body, support frame and mounting seat, the support frame are arranged on described On one side end face of filter body, the mounting seat is arranged on another side end face of the filter body, the filtering Device body interior is fixed with some metafiltration nets, and the center line of the filter body is provided with hush pipe, the upper end of the hush pipe Stretch out outside filter body, the filter body includes the hafnium alloy of outermost titanium alloy and internal layer, described titanium alloy The 34%-43% of the overall component of filter body is accounted for, described hafnium alloy accounts for the 57%-66% of the overall component of filter body.

Further illustrate, the number of plies of the filter screen is 4 layers, described titanium alloy accounts for the 38% of the overall component of filter body, Described hafnium alloy accounts for the 62% of the overall component of filter body.

Further illustrate, when filter works, water to be filtered by the mouth of a river when enter, flow through filter screen, pass through to export to enter and use The particle acrobatics that the needed pipeline in family is carried out in process cycles, water is trapped within its interior.So constantly circulation, is trapped The particle got off is more and more, and the rate of filtration is more and more slower, and the sewage of import still continuously enters, and filter opening can be increasingly It is small, pressure differential is thus produced between import and export, when magnanimous difference reaches setting value, electric signal is sent to by differential pressure transmitter Controller, control system starts drive motor and rotated by transmission component band moving axis, while sewage draining exit is opened, is arranged by sewage draining exit Go out, after filter gauze cleaning is finished, pressure difference is minimized value, and system returns to inceptive filtering shape, and system is normally run.Filter by Housing, polynary filter core, backwash mechanism and differential pressure controller etc. part are constituted.Its inner chamber is divided into by the diaphragm plate in housing, Lower two chambers, upper intracavitary is furnished with multiple filtration cores, so abundant filter space, the significant volume for reducing filter, lower intracavitary Backwash sucker is installed.During work, turbid liquid through entrance enter filter cavity of resorption, and through partition board hole enter filter core inner chamber.Greatly Impurity in filtration core gap is trapped, and net liquid reaches epicoele through gap, is finally sent out from outlet.Filter is using high-strength The wedge-shaped filter screen of degree, passes through pressure difference control, timing controlled automatic cleaning filter core.When accumulation of impurities draws in cartridge surface in filter Play inlet outlet pressure differential and increase to setting value, or timer, when reaching preset time, electric operated control box sends signal, driving backwash Mechanism.When backwashing sucker mouthful and filter core import just pair, blowoff valve is opened, now system decompression draining, sucker with filter core There is negative pressuren zone of the relative pressure less than the outer side hydraulic pressure of filter core in side, forces part net circulating water to flow into filter core on the outside of filter core Inner side, adsorbs the contaminant particles in filter core Nell wall and flows into Rang disks and discharged from blowoff valve with water.The filter screen of particular design So that producing jeting effect inside filter core, any impurity will all be washed away from smooth inwall.When filter inlet outlet pressure differential Recover normally or timer setting time terminate, in whole process, material does not stop, and backwash water consumption is few, realizes serialization, Automated production.Filter is widely used in metallurgy, chemical industry, oil, papermaking, medicine, food, mining, electric power, city water neck Domain.Such as industrial wastewater, the filtering of recirculated water, the regeneration of emulsion, waste oil filtration treatment, the continuous casting water system of metallurgy industry, Blast furnace water system, hot rolling high-pressure water descaling system.It is a kind of advanced, efficient and easy-operating automatic filtering apparatus.Filtering The impurity that the pending water of device is entered in body, water by water inlet is deposited on stainless steel filtering net, thus produces pressure difference.Pass through pressure Difference switch monitoring intake-outlet pressure difference change, when the differential reaches a set point, electric controller is to hydraulic control valve, motor letter Number.After equipment is installed, debugged by technical staff, setting filtration time and cleaning conversion time, pending water is by entering water Mouth enters body, and filter starts normal work, when reaching default scavenging period, and electric controller is to hydraulic control valve, driving electricity Machine signal, triggers following action：Motor drives brush rotation, and filter core is cleaned, while control valve, which is opened, carries out blowdown, Whole cleaning process need to only continue several tens of seconds, at the end of cleaning, closing control valve, motor stalls, system recover to Its original state, initially enters next filter progress.The enclosure interior of filter is main by coarse strainer, fie screen, dirt sucking tube, Stainless steel brush or stainless steel suction nozzle, sealing ring, corrosion-inhibiting coating, rotary shaft etc. are constituted.Container is divided into filter medium upper and lower Chamber is to constitute simple filter.Suspension adds epicoele, and entering cavity of resorption by filter medium under pressure turns into filtrate, Solid particle is trapped within filter media surface formation filter residue (or filter cake).The filter that filtration media surface area is deposited in filter process Slag blanket is gradually thickeied, and liquid is increased therewith by the resistance of filter cake layer, and the rate of filtration reduces.When filter chamber is full of filter residue or crosses filtering velocity When degree is too small, stop filtering, remove filter residue, regenerate filter medium, to complete a filtration cycle.

Accurate filter is directed to for filtering accuracy, is typically in the range of sand filtration (coarse filtration) between ultrafiltration.In pressure Under effect, raw water is trapped in element wall by filter core, impurity, and water flows out through filter core, so as to reach the purpose of filtering.At present Producer's scale of China's production filter apparatus is based on medium-sized and small enterprises.Product uses high-quality stainless steel, PVC-U, engineering The resistant materials such as plastics, lucite do shell, wherein main based on high-quality stainless steel, the filter core of built-in different medium. Built-in filter core has PE cores, honeycomb core, folded core, titanium tube sintering core, activated carbon core, ceramic core, polypropylene fiber filter core etc..Filter core Different filter effects are different, therefore accurate filter can go hanging in water removal according to the requirement of raw water quality, effluent quality and water Float, some colloidal substances and tiny particles content etc., reach different filtering accuracies.The filtering accuracy of in the market accurate filter Scope has in 0.2-100um.Protection of the accurate filter frequently as devices such as electrodialysis, ion exchange, counter-infiltration, ultrafiltration Property filter is used, and can be applied to the water process of the industries such as food, drinks, pharmaceutical chemical industry, electronics.Therefore the accurate mistake of the present invention Filter have improve efficiency, it is cost-effective, be easy to management the features such as.

Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks Domain, is similarly included in the scope of patent protection of the present invention.

Claims (3)

1. a kind of accurate filter, it is characterised in that：Accurate filter includes：Filter body, support frame and mounting seat, institute State support frame to be arranged on a side end face of the filter body, the mounting seat is arranged on the another of the filter body On one side end face, some metafiltration nets are fixed with inside the filter body, the center line of the filter body is provided with noise reduction Pipe, the upper end of the hush pipe is stretched out outside filter body, and the filter body includes outermost titanium alloy and internal layer Hafnium alloy, described titanium alloy accounts for the 34%-43% of the overall component of filter body, and it is overall that described hafnium alloy accounts for filter body The 57%-66% of component.

2. accurate filter according to claim 1, it is characterised in that：The number of plies of the filter screen is 4 layers.

3. accurate filter according to claim 1, it is characterised in that：Described titanium alloy accounts for filter body and totally divided The 38% of amount, described hafnium alloy accounts for the 62% of the overall component of filter body.