CN203060949U

CN203060949U - Bidirectional online drainage filter

Info

Publication number: CN203060949U
Application number: CN 201320040024
Authority: CN
Inventors: 罗成
Original assignee: SHANGHAI HUQING INSTRUMENT CO Ltd
Current assignee: SHANGHAI HUQING INSTRUMENT CO Ltd
Priority date: 2013-01-25
Filing date: 2013-01-25
Publication date: 2013-07-17
Anticipated expiration: 2023-01-25

Abstract

The utility model discloses a bidirectional online drainage filter, and belongs to the technical field of flowmeters and pre-pump protection devices, aiming at solving the technical problem of the filter under a working condition that the material contains light suspended impurities. The bidirectional online drainage filter is characterized in that a clean-up hand wheel is connected with a lead screw, a scraper shaft and a ring-type scraper through a lead screw shaft sleeve, the ring-type scraper and a filter element are coaxially arranged and the ring-type scraper is capable of moving up and down along the axial direction, the semi-diameter of the ring-type scraper is matched with that of the inner side of the filter element, a dirty storage room is communicated with a lower drainage valve connecting pipeline, a top drainage port in a filter cavity is communicated with an upper drainage valve connecting pipeline. The filter has the advantages that the ring-type scraper is capable of moving up and down along the axial direction to remove the impurities adhered to a filter screen under the working condition that the material is in filter stickiness or easy to paste and contains the light suspended impurities, the heavy impurities are capable of sinking to enter the dirty storage room so as to be drained from a lower drainage valve, and the light impurities are suspended to be drained from an upper drainage valve. The filter disclosed by the utility model is simple in structure and convenient to operate, an integral filter effect of the upper and lower bidirectional drainages is good, the service life is long, and the working efficiency is high.

Description

A kind of two-way online drain filter

Technical field

The utility model belongs to flowmeter, the preceding protective device technical field of pump, relates to a kind of online filter of exempting to dismantle, and is specifically related to a kind of two-way online drain filter.

Background technology

Filtering viscosity or easily sticking with paste and contain under the operating mode of lightweight suspension impurity material, conventional filter easily causes filter core to stop up, and makes the filter can't operate as normal.This moment must the termination of pumping breaks in production, and filter integral body is taken apart, and impurity artificial, that manually removing can't filtering is not only wasted time and energy, and delayed production, has increased production cost.

The general online filter of exempting to dismantle, dirt storage room all is arranged on the below of filter chamber, when the filter core inner chamber is stopped up by the impurity material or partly stops up during filter work, there is pressure differential in the inside and outside liquid of filter core, this moment can be clockwise/or rotate counterclockwise the handwheel of removing contamination, to be attached to impurity dirt scraping on the filter core screen wall by the strip scraper, enter the dirt storage room that places the below, filter chamber, realize online blowdown.But filtering viscosity or easily sticking with paste and contain under the operating mode of lightweight suspension impurity material, tradition is online exempts to dismantle the impurity that filter can't filtering contains suspended impurity.

Summary of the invention

The purpose of this utility model provides a kind of two-way online drain filter, solves that tradition is online exempts to dismantle the technical problem that filter can't filtering contains lightweight suspension impurity.

For achieving the above object, the technical solution adopted in the utility model is: a kind of two-way online drain filter, comprise the filter cavity, place the filter core of the band filter screen in the described filter cavity, be positioned at the dirt storage room of described filter cavity below, the handwheel of removing contamination is positioned at filter cover plate top and is fixed by stent support, it is characterized in that: the described handwheel of removing contamination is by screw mandrel axle sleeve and screw mandrel, blade shaft, the ring type scraper connects, ring type scraper and the coaxial setting of described filter core, and can move up and down vertically, the radius of described ring type scraper and described filter core inner radius coupling are coincide; Described dirt storage room communicates with down blow valve connecting line, and the sewage draining exit that described filter cavity inner top is equipped with communicates with the scum valve connecting line.

Described filter core is welded to connect fixing by upper mounted plate and bottom plate and described filter cavity medial surface.

Described ring type scraper by being with top board and the lower platen clamping of upward and downward through hole, is connected and fixed with blade shaft in the form of a ring.

Described filter cover plate top is equipped with is with manometric exhaust-valve.

Good effect of the present utility model is: filtering viscosity or easy paste and containing under the operating mode of lightweight suspension impurity material, tested material filters the impurity of adhesion on the after-filter filter screen, move the impurity of removing adhesion on the filter screen up and down through the ring type blade shaft, heavy impurity sinks to entering described dirt storage room, discharges from the down blow valve; Lightweight suspension impurity come-up is discharged from scum valve, and integral filter is effective.Simple in structure, easy to operate, long service life, and whole process all can be online, exempt from dismounting and finish, need not termination of pumping, do not influence production, reduced labour intensity, improved operating efficiency.Before the utility model filter is installed in pump, can substitute the backpulsing self-cleaning filter, conventional core formula filter, bag filter, basket filter and reciprocating sieve.

Description of drawings

Fig. 1 filter profile structural representation;

Fig. 2 filter revolved section structural representation;

Fig. 3 ring type doctor assemblies downstream position working state structure schematic diagram;

Fig. 4 ring type doctor assemblies upward position working state structure schematic diagram;

Fig. 5 ring type doctor assemblies structural representation.

Among the figure, the 1-import; The 2-Pressure gauge; The 3-handwheel of removing contamination; The 4-support; 5-filter cover plate; The 6-outlet; The 7-scum valve; 8-filter cavity; 9-down blow valve; The 10-atmospheric valve; The 11-screw mandrel; 12-dirt storage room; 13-screw mandrel axle sleeve; 14-upper limit back-up ring; The 15-blade shaft; The 16-upper mounted plate; The 17-filter core; The 18-bottom plate; 19-lower limit back-up ring; The 20-top board; 21-ring type scraper; The 22-lower platen; The 23-through hole.

The specific embodiment

Fig. 1 is the filter profile structural representation, Fig. 2 be filter structure schematic representation, Fig. 3,4 be respectively ring type doctor assemblies place descending/or working state structure schematic diagram during upward position; Fig. 5 is ring type doctor assemblies structural representation.As shown, a two-way line sewage filter, includes a filter chamber 8, the filter is placed inside the cavity 8 of the filter with the filter 17, the filter chamber is located below the sewage storage 8 chamber 12, the hand raking wheel 3 is the top of the filter cover 5 fixedly supported by the holder 4, characterized in that: said raking wheel 3 by hand screw sleeve 13 with the screw 11, a blade shaft 15, scraper ring 21 is connected, scraper ring 21 disposed coaxially with said filter element 17, and axially moving up and down; said ring scraper 21 with the radius of the inner radius of the matched filter 17 anastomosis; said sewage storage room 12 and the lower connecting pipe 9 is connected to the drain valve, the filter inside the cavity 8 on top of the sewage outfall and the valve 7 is connected to the connecting pipe.

Described filter core 17 is welded to connect fixing by upper mounted plate 16 and bottom plate 18 with described filter cavity 8 medial surfaces.

As shown in Figure 5, described ring type scraper 21 by top board 20 and lower platen 22 clampings of band upward and downward through hole 23, is formed the ring type doctor assemblies in the form of a ring, is connected and fixed with blade shaft 15.

Described filter cover plate 5 tops are equipped with the exhaust-valve 10 of band Pressure gauge 2.

More particularly, the rotation handwheel 1 of removing contamination drives screw mandrels 11 by screw mandrel axle sleeve 13 and does and pump, re-using flat key and connecting bolt makes screw mandrel 11 be connected with blade shaft 15, screw mandrel 11 is done when pumping and to be driven blade shaft 15 and do equally and pump, and up and descending spacing upper limit back-up ring 14 and the lower limit back-up ring 19 of leaning on respectively of screw mandrel 11 realized.As shown in Figure 5.Described ring type scraper 21 by being with top board 20 and lower platen 22 clampings of upward and downward through hole 23, is connected and fixed with blade shaft 15 in the form of a ring.Through above a series of structural design, the final realization can realize that ring type scraper 21 is done in filter core 17 filter screen inboards pump that by the rotation handwheel 3 of removing contamination scraping is attached to the impurity on the filter screen, thereby guarantees the operate as normal of filter.

Filter core 17 is with upper mounted plate 16 and bottom plate 18 welding are fixing is welded and fused again with on filter cavity 8 inwalls, thereby makes ring type scraper 21 do at filter core 17 filter screen medial surfaces that filter core 17 remains stationary state when pumping.For preventing revealing, install black box additional and guaranteed that blade shaft 15 does when pumping slowly at the two, the material that filter cavity 8 domestic demands are filtered is unlikely to produce the leakage contribution safety in production outward.Described filter cover plate 5 tops are equipped with the exhaust-valve 10 of band Pressure gauge 2, are to consider from safety in production, prevent that filter cavity 8 internal pressures are too high.

When filter of the present utility model is in the filtration state, material flows into from filter inlet 1, from up to down flow, enter in filter core 17 cavitys, from inside to outside see through filter core 17 screen surface, flow out through filter outlet 6, when the inner surface of filter core 17 filter screens is collected a certain amount of impurity, filter core 17 valid circulation area reduce, and produce pressure reduction, need manually clockwise rotate the handwheel 3 of removing contamination this moment and begin to clean action; Ring type scraper 21 is slowly descending in the drive of screw mandrel 11 and blade shaft 15 as shown in Figure 3, when striking off filter core 17 filter screen inner surface impurity, impurity is pushed into dirt storage room 12, after coming downwards to lower limit (setting by lower limit back-up ring 19), oppositely rotate counterclockwise the handwheel 3 of removing contamination again and drive ring type scraper 21 slowly up (Fig. 4) by screw mandrel 11 and blade shaft 15, further scraping impurity, this moment, partial impurities was gathered in dirt storage room 12 with the through hole 23 of descending liquid by ring type scraper 21 and top board 20 and lower platen 22; Need open down blow valve 9 when a certain amount of and discharge the liquid that contains high concentration impurities, the recyclable or discharging of the raffinate of discharge when dirt storage room 12 is accumulated to.This filter is provided with two sewage draining valves up and down, be respectively scum valve 7 and down blow valve 9, the setting of scum valve 7 is can't be gathered in the impurity of dirt storage room 12 all the time at being suspended in liquid surface, utilizes the pressure of pipeline that this partial impurities is discharged smoothly from scum valve 7.

Claims

1. two-way online drain filter, comprise the filter cavity, place the filter core of the band filter screen in the described filter cavity, be positioned at the dirt storage room of described filter cavity below, the handwheel of removing contamination is positioned at filter cover plate top and is fixed by stent support, it is characterized in that: the described handwheel of removing contamination is by screw mandrel axle sleeve and screw mandrel, blade shaft, the ring type scraper connects, ring type scraper and the coaxial setting of described filter core, and can move up and down vertically, the radius of described ring type scraper and described filter core inner radius coupling are coincide; Described dirt storage room communicates with down blow valve connecting line, and the sewage draining exit that described filter cavity inner top is equipped with communicates with the scum valve connecting line.

2. according to the described a kind of two-way online drain filter of claim 1, it is characterized in that: described filter core is welded to connect fixing by upper mounted plate and bottom plate and described filter cavity medial surface.

3. according to the described a kind of two-way online drain filter of claim 1, it is characterized in that: described ring type scraper by being with top board and the lower platen clamping of upward and downward through hole, is connected and fixed with blade shaft in the form of a ring.

4. according to the described a kind of two-way online drain filter of claim 1, it is characterized in that: described filter cover plate top is equipped with is with manometric exhaust-valve.