CN2296756Y

CN2296756Y - Gap changing type water filtering cap

Info

Publication number: CN2296756Y
Application number: CN 97239722
Authority: CN
Inventors: 田丰
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-23
Filing date: 1997-06-23
Publication date: 1998-11-11
Anticipated expiration: 2007-06-23

Abstract

The utility model relates to a water filtering cap for isolating the filtering material and distributing water in a water treatment equipment and is provided with a multiple column-shaped skeleton cover plate and a fixing supporting column vertically penetrated through by the middle hole of the skeleton cover plate. The lower part of the fixing supporting column is fixed on a multiple hole lower supporting seat plate. The upper end of the supporting column is provided with an elastic body for placing and pressing the cover plate, and the periphery of the cover plate skeleton is provided with a multiple layer stacked piece. The water filtering cap can achieve the equipment forward filtering through flow use and the reverse flushing stacked piece clearing use. The water filtering cap lightens the manual examination and repair clearing working capacity and increases the filtering capability of the water filtering cap and the whole equipment withdrawal force.

Description

The space-changeable type water filtering cap

The utility model belongs to water-treatment technology field, relates generally to a kind of water filtering cap that particularly is used to isolate filtrate and water distribution in water treatment facilities in tankages such as floating bed and mixed ion exchanger.

Its filtration slit of the water filtering cap of the quovis modo that generally uses in the art all is changeless after making at present.The existing shortcoming of this fixedly clearance type device is that the slit of water filtering cap in filter process will be little or constantly broken filtering material particle obstruction gradually, its ability to work is greatly reduced and until completely losing filter capacity, even if also can't remove obstruction with the method for filtrate backwash this moment, only pull down the artificial block clearing of water filtering cap, increased the workload of repair and maintenance so again greatly.

The purpose of this utility model is to overcome the defective of prior art, utilizes the method change water filtering cap gap of backwash and then the space-changeable type water filtering cap that tamper can be removed smoothly when a kind of can the obstruction in the water filtering cap slit is provided.

The technical solution that adopts is so for achieving the above object: the space-changeable type water filtering cap that is provided has a multicolumn shape skeleton cover plate and an anchor post that is vertically passed by skeleton cover plate mesopore, the bottom of described pillar is fixed on the porous lower support plate, be provided with an elastomer that is used to put cover clamp in the upper end of pillar, be provided with multi-layer stacks in the periphery of cover plate skeleton.In the utility model structure, the peripheral set multi-disc of skeleton is separate has formed a filtering bodies by the lamination of reliable location again mutually, the upper end of filtering bodies is sealed by cover plate, under the elastomeric effect of portion on the cover board simultaneously, filtering bodies is put on the porous lower support plate by pressure, lower support plate then is fixed on the equipment card, has so promptly formed a complete water filtering cap.This water filtering cap is subjected to the effect of hydraulic pressure and elastomer pressure when forward is worked, the slit between all laminations is unlikely change, has reached the fixedly normal filtration ability of clearance type water filtering cap.When slit between lamination blocked and when the water filtering cap filter capacity is descended, can utilize the course of work of filtrate backwash to remove tamper, its principle be counter-flushing liquid under certain pressure from the water filtering cap slit of flowing through by force in the other direction, at this moment cap body positive direction does not have operating pressure, the pressure of counter-flushing liquid is pushed elastomer open makes the slit between the water filtering cap lamination become big, and tamper promptly together is rushed out with counter-flushing liquid, has realized that the space-changeable type water filtering cap adjusts the purpose that time of filtration is removed obstruction smoothly automatically; After backwash process finishes, under elastomer promotes,, lamination make water filtering cap enter normal operating conditions once more thereby returning to original slit again automatically.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of a kind of embodiment of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1 structure.

As shown in the figure, this water filtering cap is cylindrical stacked, is made up of members such as skeleton cover plate 2, anchor post 6, porous lower support plate 4, lamination 3 and elastomers 1.Lamination 3 is located at the periphery of cover plate 2 skeletons, and the accurate in locating boss is all arranged between lamination, with guarantee mutual gap and when becoming the crack mutual dislocation not, and formed filtering bodies thus.Anchor post 6 is the second order bench-type pillar of a upper post footpath greater than footpath, bottom post, the upper end of pillar is provided with an elastomer 1 that is used to apply force to skeleton cover plate 2, after the pillar mast passes skeleton cover plate 2, the following mast of its step passes lower support plate 4 more in succession and porous lower plate 5 backs join with nut 7 screw threads, step with the strut rod bottom in the installation blocks lower support plate 4, utilize lower plate 5 and nut 7 that whole members are fixed on the equipment card 8 simultaneously, form the space-changeable type water filtering cap.During work, the forward current flow out by the diagram direction of arrow.When in the backwash operating mode, flow reversal enters water filtering cap outside lower plate 5, pushes upper end cover plate 2 open, makes elastomer 1 compression, also makes the gap between the lamination 3 become big, so tamper can be gone out under the pressure of backwash current.In the practical application, this space-changeable type water filtering cap also can be installed on the equipment card or on the lateral surface of round pipe by other multiple mode.

In sum, space-changeable type water filtering cap described in the utility model can be implemented in forward when work lamination slit constant and when back flush between lamination the slit become big this characteristic automatically, thereby prevent that effectively water filtering cap from stopping up and can keep all the time the filter area and the flow of cap body, greatly alleviate the repair and maintenance workload of water filtering cap, guaranteed the normal output of whole equipment.

Claims

1, is used to isolate the space-changeable type water filtering cap of filtrate and water distribution in a kind of water treatment facilities, it is characterized in that having a multicolumn shape skeleton cover plate (2) and a pillar (6) that vertically passes by skeleton cover plate (2) mesopore, the bottom of described pillar (6) is fixed on the porous lower support plate (4), be provided with an elastomer (1) that is used to put cover clamp (2) in the upper end of pillar (6), be provided with multi-layer stacks (3) in the periphery of cover plate skeleton.

2, the space-changeable type water filtering cap of stipulating as claim 1, it is characterized in that described anchor post (6) is the second order bench-type pillar of a upper post footpath greater than footpath, bottom post, the following mast of its step passes lower support plate (4) in succession and a porous lower plate (5) back joins with a nut (7) screw thread.