CN2420262Y

CN2420262Y - Double flow rate water filting cap

Info

Publication number: CN2420262Y
Application number: CN00226464U
Authority: CN
Inventors: 李秦生
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-30
Filing date: 2000-05-30
Publication date: 2001-02-21
Anticipated expiration: 2010-05-30

Abstract

The utility model relates to a double flow rate water filtering cap used in the water treatment equipment, composed of a water cap base, a water cap head covering the water cap base, a reinforcing frame arranged in the water cap head, and a pipe arranged at the lower end of the water cap base, wherein, the upper end of the pipe is connected with a scupper arranged at the middle part of the water cap base, a straight cylinder frame is arranged at the position of the mean axis of the reinforcing frame, and the lower opening of the straight cylinder frame corresponds to the scupper of the water cap base; the position of the scupper of the water cap base is provided with a water leakage valve core which can float up and down along the straight cylinder frame. The water cap can reduce the flow rate of the filtered water through the water leakage valve core structure, and can simultaneously ensure the flow rate of backwashing water, so the effects of water treatment and backwashing are improved.

Description

The fast water filtering cap of double fluid

The utility model is the fast water filtering cap of a kind of double fluid, and it is mainly used in the water treating equipment water distribution of filter material layer in ion-exchanger particularly or the strainer and catchments.

In prior art, generally the water filtering cap of Shi Yonging by water cap seat, be buckled in water cap head on the water cap seat, be located at web frame in the water cap head, the conduit that is located at the water cap seat lower end constitutes.In water treating equipment, they are distributed on the porous supporting plate that is installed in filter material layer.During work, treating water is the bed of material after filtration from top to bottom, flows out by the water cap again; According to processing requirement, through after the multiple times of filtration, carry out back flushing to filter material layer, make filtrate recover its activity.During back flushing, current through the ejection of water cap, wash filter material layer from bottom to top.In order to reach filter effect preferably, when filtering, the flow velocity of filtered water is preferably slow relatively; And during back flushing, its water flow velocity is fast relatively, just can reach backwash effect preferably.But described common water filtering cap does not possess the ability of regulating above-mentioned two kinds of flow rate of water flow.

The purpose of this utility model is at the shortcoming of existing ortho-water cap, and a kind of double-current fast water filtering cap that can regulate filtered water and back flushing current flow velocity is provided.

For achieving the above object, solution of the present utility model is as follows: it by water cap seat, be buckled in water cap head on the water cap seat, be located at web frame in the water cap head, the conduit that is located at the water cap seat lower end constitutes, described water cap head connects firmly into an integral body with water cap seat, described conduit upper end links with the scupper at water cap seat middle part, its key structure is: the axis place of described web frame is provided with a straight tube frame, end opening that should straight tube frame is relative with the scupper of water cap seat, and be provided with one at the scupper place of water cap seat can be along the described straight spool that leaks that frame fluctuates.

By above-mentioned solution as can be seen, the utility model has increased the spool that leaks that can fluctuate in the water cap, this leaks spool when filtered water is passed through the water cap, under the effect of its deadweight and impulsive force, drop on the scupper place in the water cap, the spool that leaks can make filtered water change direction and it is formed resistance, thereby flow velocity is slowed down; When the back flushing air water passed through the water cap, under the effect of back flushing air impulse force waterborne, the spool that leaks all opened wide the scupper in the water cap along described straight tube frame come-up, and the current that then recoil can enter the water cap unobstructedly, and spray by the water cap.By the improvement of said structure, the utility model speed of filtered water stream that under the situation that satisfies the requirement of backwash gas water flow velocity, slowed down relatively, thus strengthened the effect of water treatment.

Describe structure of the present utility model and principle of work in detail according to embodiment below.

Fig. 1, one-piece construction synoptic diagram of the present utility model.

The structural upright synoptic diagram of Fig. 2, web frame.

The structure cross-sectional schematic of Fig. 3, the spool that leaks.

The upward view of Fig. 4, Fig. 3.

Referring to Fig. 1, sequence number 1 is described water cap seat, be provided with a scupper at this water cap seat middle part, the upper end of described conduit 5 links by the scupper of screw thread or fixedly connected mode and described water cap seat, be buckled with described water cap head 2 on water cap seat, water cap head 2 is fixed on the water cap seat 1, is provided with described web frame 4 in the water cap, be provided with a straight tube frame at this web frame axis place, in straight tube frame, be provided with a described spool 6 that leaks.This water cap is fixed on the filter material layer porous supporting plate 8 by fitting nut 7.When top-down filtered water was passed through the water cap, described spool 6 was in the scupper place, promptly illustrated position; When the recoil air water when from bottom to top passed through the water cap, spool 6 along floating to the top on the straight frame, was all opened wide scupper by recoil air water jack-up.Air water input, increase jet power in order to increase recoil water are provided with axisymmetric recoil water dilatation groove 9 and dilatation hole 10 in the lower end of conduit 5.

Referring to Fig. 2, described web frame 4 can adopt illustrated structure, and it is made of straight tube frame 4.1 and the disc radial struts 4.2,4.3 that is located at this straight tube frame middle part and bottom.This structure can play better booster action, simultaneously, also relatively saves material.

Referring to Fig. 3, the described spool 6 that leaks is made of slip ring 6.1, the convex tendon 6.3 that is located at the bowl-shape valve core 6.2 under the slip ring and is located at bowl-shape valve core outside surface.Wherein slip ring external diameter and the loose fit of described straight tube frame internal diameter can fluctuate the spool that leaks along straight tube frame inwall.Referring to Fig. 4, the convex tendon of described bowl-shape valve core outside surface can be symmetrical arranged, and when making this spool drop on described scupper place, leaves the slit that leaks between its bottom and the following mouth of a river, simultaneously, in described bowl-shape valve core center a leaking hole 6.21 can also be set.If the area of described leak slit and leaking hole equates with the area of scupper, just can that is to say guaranteeing to reduce flow velocity relatively under the constant situation of filtered water stream flow, can guarantee under the situation that does not reduce working efficiency, improve treatment effect.

Claims

1, the fast water filtering cap of a kind of double fluid, it is by water cap seat (1), be buckled in the water cap head (2) on the water cap seat, be located at the web frame (4) in the water cap head, the conduit (5) that is located at the water cap seat lower end constitutes, described water cap head connects firmly into an integral body with water cap seat, described conduit upper end links with the scupper at water cap seat middle part, it is characterized in that: the axis place of described web frame (4) is provided with a straight tube frame (4.1), end opening that should straight tube frame is relative with the scupper of water cap seat, and be provided with one at the scupper place of water cap seat can be along the described straight spool that leaks (6) that frame fluctuates.

2, the fast water filtering cap of double fluid as claimed in claim 1 is characterized in that: be provided with axisymmetric recoil water dilatation groove (9) and dilatation hole (10) in described conduit (5) lower end.

3, the fast water filtering cap of double fluid as claimed in claim 1 or 2 is characterized in that: the described spool that leaks is made of slip ring (6.1), the convex tendon (6.3) that is located at the bowl-shape valve core (6.2) under the slip ring and is located at bowl-shape valve core outside surface.