CN2815468Y

CN2815468Y - Disk type filter

Info

Publication number: CN2815468Y
Application number: CN 200520108847
Authority: CN
Inventors: 林和坤
Original assignee: JIEMINGTIANDI ENVIRONMENT PROTECTION EQUIPMENT CO Ltd BEIJING
Current assignee: Beijing bin Jie Ming environmental protection equipment Co.,Ltd.; Beijing environmental protection equipment Co.,Ltd. foreshore
Priority date: 2005-06-08
Filing date: 2005-06-08
Publication date: 2006-09-13
Anticipated expiration: 2015-06-08

Abstract

The utility model relates to a disk type filter which comprises a casing and a filter core, wherein a skeleton of the filter core comprises three or more hollow vertical pipes which are fixedly connected and communicated with an upper annular end face, the lower end of each pipe is communicated and fixedly connected with an inwardly concave cone-shaped cavity, the inner part of the cone-shaped cavity is provided with cone-shaped one-way valve made of elastic material, the one-way valve is provided with an opening, the vertical pipes are communicated with a water outlet through the opening, the upper end face of the skeleton is provided with a sealed cap-shaped gland, the position between the gland and the frame edge of the cone-shaped cavity is sheathed with a plurality of filter disks which can be driven around the skeleton, the vertical pipes are longitudinally provided with a plurality of water outlet holes at intervals, the inner top part of the casing is fixed with a diaphragm device.

Description

A kind of discal filter

Technical field:

The utility model relates to a kind of filter, the discal filter of impurity in particularly a kind of filtered water.Belong to the water filtration device technical field.

Background technology:

Have now in the device that water is filtered, use a kind of discal filter, more as U.S. Pat-4655910; Chinese patent 98812290.1 and No. 02205056.6.Owing to all use in this filter overlapping disc group to filter, thus the impurity on disc many later will the flushing to disc.Compacted disc to be loosened during flushing, make water carry out reverse flow then, the impurity on the released disc is oppositely cleared out by water by delivery port.For disc is loosened when the back flush, use a kind of independent fluid pressurization device in the above-mentioned United States Patent (USP), use spring mechanism, more complicated.Though above-mentioned Chinese patent saves the independent fluid pressurization device of a cover, directly relies on the back-pressure of flushing water that disc is unclamped naturally, but still uses the mechanism with spring, and the pressure of backwash water is had relatively high expectations.

At the problems referred to above, one of the utility model purpose is exactly to design the simple and reliable self-checking device of a cover, and the pressure when utilizing back flush and normal filtration changes adjusting automatically and filters unclamping of disc and closed, thereby has reduced the requirement of backwash water pressure.Another purpose of the present utility model is the water filter that design has above-mentioned adjusting device, to improve the deficiencies in the prior art.

Summary of the invention:

The utility model discal filter comprises traditional filter housings; Filter core; Described housing has into water and delivery port, and described filter core is the disk type filter core, is cylindric, comprises skeleton and disc; Described skeleton comprises the vertical pipe more than 3, vertically manage hollow, its top opening passes an annular upper end face and connects firmly with this end face, and the lower end of pipe communicates with the conical cavity of an indent and connects firmly with the cavity frame, and whole skeleton connects firmly by the edge and the delivery port of described conical cavity frame; Establish a taper elastomeric material check valve in the described conical cavity, described check valve blocks the conical cavity ledge and is provided with corresponding opening at described vertical pipe lower opening, and vertical standpipe is communicated with delivery port; Described skeleton upper surface is provided with one and cooperates also the sealing hat gland that can slide up and down along this ring with upper surface ring, vertical tube outside between this gland and described conical cavity edge is nested with a plurality of filtration discs around the skeleton transmission, along described vertical pipe longitudinal separation a plurality of apopores are set, described apopore is arranged in the face of the disc direction and some deviation positions is arranged; Described housing inner top is fixed a diaphragm apparatus, barrier film top board and a barrier film lower platen of being inverted hat of comprising an annular hollow, wherein fix a flexible partition, the cavity of described barrier film top is communicated with delivery port, described barrier film communicates with atmosphere by the hole with cavity between the described lower platen, the upper and lower surface of described diaphragm center is fixed by sheet shaped piece and a movable depression bar, and this depression bar passes the barrier film lower platen by sealing ring and contacts with described hat gland.

Because the pressure variation principle that the utility model utilizes fluid to flow is regulated compressing of filtration disc automatically and is loosened, and has saved spring mechanism, and backwash water pressure is required to reduce, and makes the reverse cleaning of filter more reliable, has finished purpose of the present invention.

Below by embodiment the utility model is done detailed explanation.

Description of drawings:

Accompanying drawing 1 is the generalized section that expression the utility model filter embodiment is in the filtration state;

The back flush state of accompanying drawing 2 expression accompanying drawings 1 embodiment.

The specific embodiment:

Accompanying drawing 1 has shown the section of structure of an embodiment of the utility model disk piece filter.Wherein, 1 represents the housing of filter, the 2nd, filter core integral body, the 3rd, water inlet, the 4th, delivery port, the 5th, disc, the 6th, skeleton, the 7th, vertical pipe of the hollow of formation skeleton, its top opening passes an annular upper end face 9 and connects firmly with this end face, the lower end of pipe 7 communicates with the conical cavity 8 of an indent and connects firmly, and whole skeleton 6 connects firmly by the edge of opening and the delivery port of described conical cavity frame 8; Establish a taper elastomeric material check valve 10 in the described conical cavity, described check valve blocks the conical cavity ledge, and is provided with corresponding opening at described vertical pipe lower opening, makes vertical standpipe 7 keep being communicated with delivery port 4; Skeleton 6 upper ends are provided with that a ring with upper surface 9 cooperates, and the sealing hat gland 12 that can slide up and down along this ring, between this gland and described conical cavity frame edge, be nested with a plurality of filtration discs 5 around the skeleton transmission, compress or loosen filtering disc by moving up and down of gland.A plurality of apopores 13 are set, apopore 13 is arranged in the face of disc and some deviation positions is arranged with longitudinally managing 7 longitudinal separation; The inner top of described housing 1 is fixed a diaphragm apparatus 15, it comprises compressing tablet and a barrier film lower platen 17 of being inverted hat on the barrier film of an annular hollow, flexible partition 16 of center fixed, the cavity that barrier film 16 and upper shell top constitute is communicated with water inlet, and barrier film 16 communicates with atmosphere by spiracle 18 with cavity between the lower platen 17.The upper and lower surface at barrier film 16 centers is fixed by sheet shaped piece and a movable depression bar 19, and movable depression bar 19 passes barrier film lower platen 17 by sealing ring and contacts with hat gland 12.

Operation principle: the structural representation when shown in Figure 1 is filter is in running order: have the filtered water of certain pressure to enter in the housing 1 from water inlet pipe 3 by conveyance conduit, be filtered through disc 5, enter in the skeleton again, enter the conical cavity 8 of indent through opening naturally of flexible check valve 10, flow into delivery port 4.Because the pressure of filtered water is greater than people's air pressure, barrier film 16 has been full of water with the asking of top of housing 1, air between barrier film 16 and the lower platen 17 is 18 discharges from the hole, barrier film 16 is pressed to the below, thereby make the motion bar 19 that links with barrier film exert pressure to make and filter disc 5 and be in compacted state covering 12 thus downwards.

Shown in Figure 2 is the duty of filter at cleaning disc 5: at this moment, water inlet 3 is no longer intake and is become delivery port, so the water of water between disc 5 and the housing 1 and barrier film 16 superjacent air spaces all flows to water inlet 3.This moment, flushing water oppositely entered filter from delivery port 4, because the effect of check valve, water flows into vertically pipe 7 from the perforate on the check valve, flow into the annular region of skeleton upper surface through the upper shed of vertical pipe, hat gland 12 is produced thrust upwards, make and cover 12 and move upward, cause disc 5 to be in relaxation state thus.Simultaneously, water also sprays the hole from vertical pipe 13, at a certain angle disc 5 is washed, and causes disc to rotate.At this moment and since lid 12 on move, motion bar 19 moves on also, makes barrier film 16 be in the position shown in Fig. 2.

The diaphragm apparatus of addressing in the foregoing description can adopt multiple version, as long as make that the barrier film superjacent air space communicates with water inlet, side space communicates with atmosphere under the barrier film.Described skeleton upper surface can be the annular spigot surface as shown in the embodiment accompanying drawing, or the guiding that adopts lead to vertically move as the hat gland.Those skilled in the art can also conceive the embodiment of making various variations according to the utility model.

Because the utility model filter is not high to the backwash water pressure request, and has saved spring and piston, makes filtration work simple and reliable.Finished goal of the invention.Protection domain of the present utility model is limited by claims.

Claims

1 one kinds of discal filters comprise housing; Filter core; Described housing has into water and delivery port, and described filter core is the disk type filter core, comprises skeleton and disc; Described skeleton comprises the vertical pipe more than 3, vertically manage hollow, its top opening passes an annular upper end face and connects firmly with this end face, and the lower end of pipe communicates with the conical cavity of an indent and connects firmly, and whole skeleton connects firmly by the edge of opening and the delivery port of described conical cavity frame; Establish a taper elastomeric material check valve in the described conical cavity, described check valve blocks conical cavity chamber frame and is provided with corresponding opening at described vertical pipe lower opening, and vertical standpipe is communicated with delivery port; Described skeleton upper surface is provided with one and cooperates also the sealing hat gland that can slide up and down along this ring with upper surface ring, vertical tube outside between described gland and the described conical cavity frame edge is nested with a plurality of filtration discs around the skeleton transmission, along described vertical pipe longitudinal separation a plurality of apopores are set, described apopore is arranged in the face of the disc direction and some deviation positions is arranged; It is characterized in that: described housing inner top is fixed a diaphragm apparatus, described diaphragm apparatus comprises the annular diaphragm top board of hollow, with a barrier film lower platen of being inverted hat, fix a flexible partition between two pressing plates, the cavity of described barrier film top is communicated with water inlet, described barrier film communicates with atmosphere by spiracle with cavity between the described lower platen, the upper and lower surface of described diaphragm center is fixed by sheet shaped piece, sheet shaped piece and a movable depression bar connect firmly, and described depression bar passes the barrier film lower platen by sealing ring and contacts with described hat gland.

2 by the described discal filter of claim 1, and it is characterized in that: described movable depression bar and described hat gland top connect firmly.