CN201175616Y

CN201175616Y - Butterfly anti-blockage filter

Info

Publication number: CN201175616Y
Application number: CNU2008200847200U
Authority: CN
Inventors: 张崇尧
Original assignee: ZHEJIANG WANQIANG FLANGE CO Ltd
Current assignee: ZHEJIANG WANQIANG FLANGE CO Ltd
Priority date: 2008-03-29
Filing date: 2008-03-29
Publication date: 2009-01-07
Anticipated expiration: 2018-03-29

Abstract

The utility model provides a butterfly type jam-resistance filter which is composed of a filter body, a filter plate, a filter plate rotating rod and a rotating rod driving device. A fluid flow passage is arranged in the filter body; the filter plate is arranged on the fluid flow passage of the filter body through the filter plate rotating rod, and the filter plate can be driven to rotate by operating the rotating rod driving device to drive the filter plate rotating rod; the filter plate is composed of two outer splints and a filter screen between the two outer splints; the outer splints are compressed and connected mutually through trip bolts, and filtering holes are arranged on the outer splints. The filter of the utility model can rotate the filter plate at any moment to rinse the liquid impurity on the filter screen, thereby effectively preventing the filter from generating jam.

Description

Butterfly type anti-blockage filter

Technical field

The utility model relates to a kind of filter.

Background technology

Existing filter is the fixed filter of flange substantially, its primary structure is made of the screen pack 2 between two tube sheets 1 and the tube sheet 1 as shown in Figure 1, there is fluid impurity to stay easily on the screen pack in this filter use, because cleaning the fixed filter of flange must take filter apart, taking off screen pack cleans, again filter is installed again after cleaning up, therefore cleaning process wastes time and energy very much, make this filter in use can not be often, washing fluid impurity momentarily, just form easily naturally after a period of time and stop up.

Summary of the invention

The purpose of this utility model provides a kind of susceptible to plugging butterfly type anti-blockage filter of not allowing.

To achieve these goals, technical solution of the present utility model is such: butterfly type anti-blockage filter is by filter body, filter, the filter dwang, the dwang drive unit constitutes, be provided with the fluid passage in the filter body, filter is installed on the fluid passage of filter body by the filter dwang, filter rotates with the filter dwang, thereby can drive the filter dwang by operation dwang drive unit and drive the filter rotation, this fluid passage also is in and closes accordingly or open mode when filter is in different rotary states, filter is made up of the screen pack between two external splints and two external splints, external splint compresses connection mutually by trip bolt, be equipped with filtering holes on the external splint, fluid passes the filtering holes of an external splint successively when the fluid passage is in closed condition, screen pack, the filtering holes of another external splint realizes filter process.

Because in the above-mentioned technical solution, filter is to be installed in rotation on the fluid passage of filter body, as long as operate the dwang drive unit of filter, rotary filter plate at any time just, the residue that utilizes high pressure water washing drain track media to stay, therefore can get rid of the fluid impurity on the screen pack in time, easily, make filter can not result in blockage easily.The butterfly type anti-blockage filter that the utility model provides when need changing screen pack or the pull down thorough cleaning and filtering net trip bolt that only need unclamp on the filter gets final product in addition, need not to tear open the other parts of filter body, obviously easy to use, help raising labour productivity.

Description of drawings

Fig. 1 is the fixed structure of filter schematic diagram of conventional flange;

The structural representation of the butterfly type anti-blockage filter that Fig. 2 provides for the utility model;

Fig. 3 is the Facad structure figure of filter among Fig. 2;

Fig. 4 is the A-A sectional structure chart of Fig. 3;

User mode structure chart when Fig. 5 is in a certain open angle for its fluid passage of butterfly type anti-blockage filter shown in Figure 2.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail:

Wherein: 1, tube sheet; 2, screen pack; 3, filter body; 4, filter; 4a, external splint; 4b, screen pack; 4c, trip bolt; 4d, filtering holes; 4e, dwang mounting groove; 5, filter dwang; 6, dwang drive unit; 7, fluid passage.

The fixed filter of flange as shown in Figure 1 must be taken filter apart, take off screen pack and just can clean, and can't make things convenient for, momentarily the cleaning and filtering net is got rid of the fluid impurity on the screen pack; And as Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the butterfly type anti-blockage filter that the utility model provides is by filter body 3, filter 4, filter dwang 5, dwang drive unit 6 constitutes, be provided with fluid passage 7 in the filter body 3, filter 4 is installed on the fluid passage 7 of filter body 3 by filter dwang 5, filter 4 rotates with filter dwang 5, thereby can drive filter dwang 5 by operation dwang drive unit 6 and drive filter 4 rotations, when filter 4 is in different rotary states this fluid passage 7 also be in corresponding closed condition as shown in Figure 2 or open mode as shown in Figure 5, filter 4 is made up of the screen pack 4b between two external splint 4a and the two external splint 4a, external splint compresses connection mutually by trip bolt 4c, be equipped with filtering holes 4d on the external splint, fluid passes the filtering holes 4d of an external splint 4a successively when fluid passage 7 is in closed condition, screen pack 4b, the filtering holes 4d of another external splint 4a realizes filter process.The butterfly type anti-blockage filter that the fixed filter the utility model of traditional relatively flange provides can make things convenient for operates dwang drive unit, rotary filter plate in time, in time gets rid of the fluid impurity on the screen pack, prevents that effectively filter from forming obstruction.

In the embodiment previously described, filter 4 can have various ways with the connected mode of filter dwang 5 under the prerequisite that realizes the utility model purpose.As Fig. 2, Fig. 3, shown in Figure 4 be provided with dwang mounting groove 4e in external splint 4a inboard, filter dwang 5 and screen pack 4b were fixed between the two external splint 4a after two external splint 4a compressed and connect, wherein filter dwang 5 is installed in the dwang mounting groove 4e of external splint 4a inboard, this connected mode compact conformation, reliable can better be realized the utility model purpose.When the shape of cross section of the last dwang mounting groove 4e of external splint 4a was consistent with the shape of cross section of mounting groove inner filtration plate dwang 5, filter 4 was more harmonious with cooperating of filter dwang 5, and product strength is better.

When as shown in Figure 2, the every side in both sides of the filter dwang 5 of butterfly type anti-blockage filter is provided with three trip bolt 4c, the center of three trip bolt 4c of homonymy constitutes isosceles triangle, when the base of this isoceles triangle shape is parallel with filter dwang 5 axis, can be so that between filter 4 and the filter dwang 5, and be connected between the external splint 4a of filter 4 and the screen pack 4b cooperate more stablely, reliable.

In use to open and close resistance less for butterfly type anti-blockage filter, filter 4 both sides stress equalizations, filtering holes 4d on the external splint 4a and trip bolt 4c are symmetricly set on the both sides of filter dwang 5 axis as shown in Figure 2, have avoided filtering holes 4d or trip bolt 4c is asymmetric when the being provided with excessive defective of filter collateral resistance.

Among described in front each embodiment, dwang drive unit 6 is finished the function that drives dwang and then rotary filter plate 4, can adopt DYN dynamic drive unit when the filter size is big; Usually the turning handle of hand can be adopted when not being big especially owing to filter size, also the purpose of this utility model can be realized as the dwang drive unit among Fig. 2, Fig. 56.

In the embodiment previously described; filter 4 is made up of the screen pack 4b between two external splint 4a and the two external splint 4a; this also is the elementary cell that filter 4 is realized filtering function; if the filter 4 that adopts in implementing the process of this patent is to increase some supplementary technology contents on the basis of elementary cell in front; as add the purpose that one deck screen pack and one deck external splint reach double filtration again on the basis of two external splint 4a and a screen pack 4b, this filter also should belong to the protection domain of this patent independent claims naturally in conjunction with the technical scheme of other technical characterictic formation of this patent.

Because the filter 4 in the butterfly type anti-blockage filter that the utility model provides is wholy set in the fluid passage 7 together with trip bolt 4c, filter with respect to the fixed filter of conventional flange must have the flange form outer ring, the art of this patent scheme can be saved the material of lower flange formula outer ring, when pipeline is installed, filter body 3 can be clamped and installed between two flange ends of pipeline installation site, this shows that this patent scheme can effectively anti-blockingly can save raw material again to a certain extent.

Claims

1, a kind of butterfly type anti-blockage filter, it is characterized in that: butterfly type anti-blockage filter is by filter body (3), filter (4), filter dwang (5), dwang drive unit (6) constitutes, be provided with fluid passage (7) in the filter body (3), filter (4) is installed on the fluid passage (7) of filter body (3) by filter dwang (5), filter (4) rotates with filter dwang (5), can drive filter dwang (5) thereby drive filter (4) rotation by operation dwang drive unit (6), this fluid passage (7) also are in and close accordingly or open mode when filter (4) is in different rotary states, filter (4) is made up of the screen pack (4b) between two external splints (4a) and two external splints (4a), external splint compresses connection mutually by trip bolt (4c), be equipped with filtering holes (4d) on the external splint, when fluid passage (7) filtering holes (4d) that fluid passes an external splint (4a) successively when being in closed condition, screen pack (4b), the filtering holes (4d) of another external splint (4a) realizes filter process.

2, butterfly type anti-blockage filter according to claim 1, it is characterized in that: external splint (4a) inboard is provided with dwang mounting groove (4e), filter dwang (5) and screen pack (4b) were fixed between two external splints (4a) after two external splints (4a) compressed and connect, and wherein filter dwang (5) is installed in the inboard dwang mounting groove (4e) of external splint (4a).

3, butterfly type anti-blockage filter according to claim 2 is characterized in that: the shape of cross section of the last dwang mounting groove (4e) of external splint (4a) is consistent with the shape of cross section of mounting groove inner filtration plate dwang (5).

4, according to claim 1 or 2 or 3 described butterfly type anti-blockage filters, it is characterized in that: the every side in both sides of filter dwang (5) is provided with three trip bolts (4c), the center of three trip bolts (4c) of homonymy constitutes isosceles triangle, and the base of this isoceles triangle shape is parallel with filter dwang (5) axis.

5, according to claim 1 or 2 or 3 described butterfly type anti-blockage filters, it is characterized in that: filtering holes (4d) on the external splint (4a) and trip bolt (4c) are symmetricly set on the both sides of filter dwang (5) axis.

6, butterfly type anti-blockage filter according to claim 4 is characterized in that: filtering holes (4d) on the external splint (4a) and trip bolt (4c) are symmetricly set on the both sides of filter dwang (5) axis.

7, according to claim 1 or 2 or 3 described butterfly type anti-blockage filters, it is characterized in that: dwang drive unit (6) is a turning handle.