CN2180318Y

CN2180318Y - Automatic counter-flushing water filter purifying device for water supply

Info

Publication number: CN2180318Y
Application number: CN 93229311
Authority: CN
Inventors: 孙克钦; 孙开录
Original assignee: YINGKOU HIGH AND MIDDLE PRESSURE VALVES GENERAL FACTORY; Angang Steel Co Ltd
Current assignee: YINGKOU HIGH AND MIDDLE PRESSURE VALVES GENERAL FACTORY; Angang Steel Co Ltd
Priority date: 1993-09-23
Filing date: 1993-09-23
Publication date: 1994-10-26
Anticipated expiration: 2003-09-23

Abstract

The utility model relates to an automatic counter-flushing water filter purifying device for water supply, mainly comprising an upper cavity body, a lower cavity body, filtering rods, a partition plate, a pressure difference detecting device, a counter-flushing return water pipe, etc. The utility model can cause raw water which needs to be filtered to flow into the filtering rods to be filtered through a partition plate hole from the lower cavity body, and then the filtered raw water is supplied to a consuming place through the upper cavity body. Because each of the filtering rods is made of six sheet steels which are wrapped with hard threads with trapezoidal cross-sections, V-shaped filtering tanks can be formed at the directions corresponding to the central lines of the filtering rods, which not only causes the quantity of filtered water to be increased, but also realizes water filtering functions for different requirements via replacing the filtering rods with different rotating distances. The counter-flushing return water pipe form a Y shape, and only two filtering rods are washed during the process of counter-flush. Continuous rotation for replacement and wash can be realized by means of a rotary device, so that the normal water filtering work is not affected during the process of counter-flush.

Description

Automatic counter-flushing water filter purifying device for water supply

The utility model relates to a kind of water supply automatic backwash drainage purifier, belongs to water treatment facilities.

In the water in many industrial circles such as metallurgy, chemical industry, the kind of impurity in the water and granularity etc. are required very strict, therefore in the feedwater process, filter and purify very important.

Before the utility model was made, drainage form commonly used was netted drainage or fiber drainage etc., though these drainage modes have obtained certain application in practice, it is little that they have unit are drainage amount jointly, and stop up problems such as serious; And in order to reduce and to solve the drainage blockage problem and the backwash measure adopted mainly contains air-water counter washing process of filter tanks by using ejector air pump or other air-water backwashing etc., these backwash measures generally need stop to supply water, also must set up simultaneously air feed and air water mixing facility, therefore also have the equipment complexity, shortcoming such as amount of investment is big.

Characteristics such as the purpose of this utility model just provides a kind of water supply automatic backwash drainage purifier, and it is integrated in one the function of drainage and backwash, and can detect and implement backwash operation automatically, and it is simple to have equipment, and applying flexible is convenient.

Water supply automatic backwash drainage purifier of the present utility model and using method accompanying drawings are as follows:

Fig. 1, water supply automatic backwash drainage purifier partly cuts open figure

Fig. 2, the A-A sectional drawing of Fig. 1

Fig. 3, the filter stick detail drawing

Water supply automatic counter-flushing water filter purifying device of the present utility model mainly by upper cavity 1, lower chamber 2, filter stick 3, dividing plate 4, pressure detector 5, water inlet 6, delivery port 7, The formations such as backwash return pipe 8 backwash return pipe tumblers 9 and sewage backwash magnetic valve 10. The water inlet 6 of this device is located at a side of lower chamber 2, and filter stick 3 is fixed on the dividing plate 4 and by the hole, garden on the dividing plate 4 and is communicated with lower chamber 2, and filter stick is established two circles altogether, and every circle can be established 8～20. The section of filter stick 3 is hexagon, it is to be formed around trapezoidal hard silk suture by interior establishing outside the six roots of sensation steel disc, the impurity granularity is decided in the water after the spiral distance of silk thread is filtered on requirement, and the upper base when silk thread twines is at interior ring, so form " V " font lautertuns of facing the filter stick center line. Delivery port 7 will be located at a side of upper cavity 1. Backwash return pipe 8 is made up of the Y-piece road in the hole, garden on the dividing plate 4 under each filter stick in the middle of respectively corresponding outer ring and the inner ring, the afterbody of Y-piece is sewage backwash

magnetic valve

10, and 4 on the suitable for reading and dividing plate in this Y-piece road also can be by the effect realization rotation of backwash return pipe tumbler 9 by rubber realization sealing and slip.

The difference of the hydraulic pressure of upper cavity 1 and lower chamber 2 can realize measuring by pressure detector 5.

The using method and the function of water supply automatic backwash drainage purifier of the present utility model are as follows: the former water that need to filter enter in the lower chamber 2 by water inlet 6 and enter each filter stick inner filtration respectively by the hole, garden on the dividing plate 4 after flow in the upper cavity 1, flow out by delivery port 7 at last and deliver to the use point.Because filter stick is to be entwined by trapezoidal silk thread, its lautertuns is V-shaped, so large granular impurity will be stuck in the V-shaped groove and constantly accumulation, blocked to a certain degree the time when V-shaped groove, the hydraulic pressure in the lower chamber 2 will be obviously greater than the hydraulic pressure in the upper cavity.When the pressure reduction of the two reaches predetermined value, pressure detector 5 sends instruction, backwash return pipe tumbler 9 starts, driving backwash return pipe 8 rotates, aim at two filter stick end openings respectively thereby two of making Y-piece are suitable for reading, sewage backwash magnetic valve 10 is opened at this moment, and refluxing by the water purification in the upper cavity 1 sweeps away the impurity that amasss at V-shaped groove.Backwash return pipe tumbler 9 drives backwash return pipes 8 and regularly rotates the location, thereby realizes that per two one group filter stick is when backwash and do not influence the drainage work of other filter stick.When narrowing down to setting value gradually when pressure reduction is in backwash in the cavity up and down, the action of backwash stops, tumbler outage, closed electromagnetic valve.

Water supply automatic backwash drainage purifier of the present utility model is owing to adopt the filter stick form to filter, not only can increase the drainage amount of unit are, also can revolve the filter stick of distance by changing difference, realize the different drainage functions that require, its backwash process is per two once cleanings separately in addition, so do not influence normal drainage during backwash, must not establish the auxiliary equipment of air pump and so in addition yet.

Claims

1, a kind of water supply automatic backwash drainage purifier, mainly by upper cavity (1), lower chamber (2), filter stick (3), dividing plate (4), pressure detector (5), backwash return pipe (8) and backwash return pipe tumbler formations such as (9), it is characterized in that former water that needs filter is entered in the filter stick (3) by the hole, garden on dividing plate (4) in the lower chamber (2) filters, and is fed to the use point by upper cavity (1).

2, water supply automatic backwash drainage purifier according to claim 1, it is characterized in that filter stick (3) section becomes hexagon, it is to be formed around trapezoidal hard silk suture by interior establishing outside the six roots of sensation steel disc, upper base when silk thread twines is at interior ring, thereby formation is in the face of " V " font lautertuns of filter stick center line.

3, water supply automatic backwash drainage purifier according to claim 1, it is characterized in that backwash return pipe (8) is made up of the Y-piece road in the hole, garden on each filter stick dividing plate (4) down in the middle of respectively corresponding outer ring and the inner ring, and can realize rotation and two filter sticks of backwash at every turn by backwash return pipe tumbler (9).

4, water supply automatic backwash drainage purifier according to claim 1 is characterized in that the beginning of backwash and stops pressured difference detector (5) most controlling.