CN203577382U - Flowing liquid wall-washing recoilless filter - Google Patents

Abstract

A wall-washing non-backflush filter for incoming liquid. The main purpose is to solve the problem that the existing oil-water mixture filtration and separation equipment needs to be continuously backwashed so that the separation efficiency is affected and the separation cost is increased. It is characterized in that: the left and right ends of the tank body are respectively provided with an overflow chamber outlet and an underflow main outlet, and the inner chamber of the tank is sealed by three circular sealing partitions between the overflow chamber outlet and the underflow main outlet. Divided into four chambers that are not connected to each other, there is a general inlet on the side wall of the tank body of the inlet, and a cyclone cone made of microporous pipe is fixed through the filtered water collection chamber from left to right , the inlet disk at the top of the cyclone cone tube is provided with a tangential inlet tangent to the arc surface of the inlet section of the cyclone cone tube, and the underflow port at the tail end of the cyclone cone tube is located in the underflow water outlet; the overflow port Affixed to the top of the cyclone cone through the inlet disk. This kind of filter can use incoming liquid to self-clean the filter body, without backwashing process, and has good separation effect.

Description

Incoming liquid washes the wall without backflushing filter

technical field

The utility model relates to a filter separator used in the field of oil-water mixture separation.

Background technique

At present, there are many forms of filtration and separation equipment suitable for oil-water mixtures, such as quartz sand two-way filters, jet stirring filters, fiber ball filters, walnut shell filters, etc. However, after a long period of use, it is found that these filters have some problems, that is, the filter material must be used, and there must be a backwashing process. Otherwise, after filtering for a period of time, it will not exceed 48 hours, and the filtered water cannot meet the expected index requirements before filtering. On the other hand, these conventional filters require a recoil stirring motor on the one hand, which increases energy consumption elements, and at the same time, there is a problem of filter material leakage during the recoil stirring process.

Contents of the invention

In order to solve the technical problems mentioned in the background technology, the utility model provides a non-recoil filter for incoming liquid washing wall, which can use incoming liquid to self-clean the filter body without backflushing process, and separate The effect is good.

The technical scheme of the utility model is: this kind of incoming liquid washes the wall without recoil filter, and its main body is a tank body whose left and right end faces are arc-shaped. The two ends are respectively provided with an overflow chamber outlet and an underflow main outlet. Between the overflow chamber outlet and the underflow main outlet, the inner cavity of the tank is divided into four cavities by three circular sealing partitions. Cavity, inlet cavity, filtered water collection cavity and underflow water outlet cavity; among them, the main inlet is opened on the side wall of the tank body of the inlet cavity, and a microporous tube is fixed to run through the filtered water collection cavity from left to right. The formed cyclone cone tube, the inlet plate at the top of the cyclone cone tube is fixed in the inlet cavity, and the inlet plate is provided with a tangential inlet that is tangent to the arc surface of the inlet section of the cyclone cone tube, and the cyclone cone tube The underflow port at the tail end is located in the underflow water outlet cavity; the overflow port penetrates the inlet plate and is fixed on the top of the cyclone cone tube, the liquid flow inlet of the overflow port is connected with the inner cavity of the cyclone cone tube, and the overflow The liquid outlet of the mouth is in communication with the overflow chamber.

The utility model has the following beneficial effects: the incoming liquid washes the wall without recoil filter and has the advantages that other conventional filters cannot match: A. The incoming liquid can self-clean the filter body without recoil process; B. The microporous tube Made into the cone structure of the cyclone, the oil-water mixture entering the microporous tube can be partially separated in the cyclone cavity, the oil phase medium migrates to the center of the cavity, and the heavy phase water migrates to the side wall , so that the oil concentration of the mixed solution for cleaning the wall surface is greatly reduced; C. It provides a reliable equipment for the treatment of oilfield sewage, especially sewage containing polymer or ASP flooding sewage; D. It is easy to operate and so on. Compared with conventional filters currently used, it has the characteristics of high filtration efficiency and good filtration effect. At the same time, the non-recoil filter for wall washing with incoming liquid has a simple operation process and reliable operation, and there is no phenomenon that other filters will reduce the filtering effect over time, and there is no problem of replacing the filter material. Manufacturing costs are reduced.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

In the figure 1- overflow cavity outlet, 2- overflow cavity, 3- total inlet, 4- inlet cavity, 5- filtered water collection cavity, 6- cyclone cone tube, 7- bottom flow water outlet cavity, 8- Underflow total outlet, 9-underflow port, 10-collection cavity outlet, 11-inlet plate, 12-overflow port.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Fig. 1, this kind of incoming liquid washes the wall without recoil filter, and its main body is a tank body whose left and right end faces are arc-shaped. An overflow cavity outlet 1 and an underflow total outlet 8 are opened respectively, and the inner chamber of the tank is divided into four cavities by three circular sealing partitions between the overflow cavity outlet 1 and the underflow total outlet 8, which are respectively The overflow cavity 2, the inlet cavity 4, the filtered water collection cavity 5 and the underflow water outlet cavity 7; wherein, the main inlet 3 is opened on the side wall of the tank body of the inlet cavity 4, and runs through the filtered water collection cavity from left to right 5. A cyclone conical tube 6 made of a microporous tube is fixed. The inlet disk 11 at the top of the cyclone conical tube 6 is fixed in the entrance cavity 4. The inlet disk 11 is provided with the inlet of the cyclone conical tube 6. The tangential inlet of the circular arc surface is tangent, and the underflow port 9 at the tail end of the cyclone cone tube 6 is located in the underflow water outlet cavity 7; the overflow port 12 penetrates the inlet plate 11 and is fixed on the top of the cyclone cone tube 6, The liquid inlet of the overflow port 12 communicates with the inner cavity of the cyclone cone 6 , and the liquid outlet of the overflow port 12 communicates with the overflow chamber 2 . In addition, a collection chamber outlet 10 is opened at the lower part of the filtered water collection chamber 5 .

In this technical solution, the microporous tube is made into a cone structure of a conical cyclone, and its inlet is made of wear-resistant material in a tangential form. When the pressurized oil-water mixture enters the tangential inlet, the liquid rotates at high speed in the cyclone chamber, and the rotating liquid cleans the inner wall of the filter body (that is, the wall of the cyclone—microporous tube), preventing the oil phase Clogging of micropores by media. At the same time, the rotating liquid is under the action of the pressure difference inside and outside the microporous tube, and the water in the liquid flows out of the cavity wall through the micropores of the microporous tube, thereby realizing the filtration of the oil-water mixture and obtaining qualified water that meets the practical requirements. The high-concentration oily water discharged from the cyclone overflow port returns to the front end of the sewage treatment process, and the low-concentration oily sewage returns to the buffer tank or buffer pool at the front end of the cyclone filter.

When in use, the oil-water mixture enters the incoming liquid wall washing non-recoil filter inlet 4 through the incoming liquid pipeline from the general inlet 3 of the inlet port, and enters the cyclone through the tangential flow channel of the inlet plate 11 under the action of pressure Conical tube 6, the material of cyclone conical tube 6 is made of microporous tube, and the rigid microporous tube whose material code is PE-3 to PE-8 is selected for use.

Due to the high-speed rotation of the mixed liquid in the swirl chamber, the liquid flow forms a high-speed rotating vortex after passing through the inlet plate 11 of the swirler. When the vortex flows down the swirl body, the high-speed swirl rotation is accelerated in the cone, and the light phase—oil moves to the center of the swirl body 6 under the action of centrifugal force, forming an oil nucleus, which is overflowed The port 12 is discharged to the overflow chamber 2, and discharged from the overflow outlet; at the same time, the heavy phase—water is thrown off the inner wall of the conical tube 6 of the cyclone and continues to move downward. While cleaning the inner wall of the microporous tube, a small Part of it is discharged along the bottom flow port 9 of the cyclone cone 6 to the bottom flow water outlet 7, and finally discharged from the bottom flow outlet 8; the other part is discharged along the micropores on the wall of the cyclone cone 6 to the post-filtration The water collecting chamber 5 is discharged through the outlet 10 of the collecting chamber.

It can be seen from the principle of cyclone separation that the oil concentration in the liquid in the overflow cavity is relatively high, and the oil concentration in the liquid in the underflow water outlet cavity 7 is relatively low. Therefore, the liquid in the overflow chamber can be returned to the front-end process pipeline of sewage treatment during the actual use of the equipment, and the liquid in the underflow water outlet can be returned to the inlet port of the incoming liquid wall washing non-backflushing filter. The incoming liquid washes the wall without recoil filter and the water discharged from the water collection chamber through the outlet is the qualified filtered water we require.

During use, the oil concentration of the treatment medium is different, but the qualified water after treatment is not affected by the oil concentration of the medium, because the filtration index is determined by the pore size of the microporous tube in the wall-washing non-backflushing filter of the incoming liquid. .

The test proves that when the oil content of the incoming liquid is about 1000-5000mg/L, and the split ratio of the incoming liquid wall washing non-recoil filter is controlled at about 60%, the material of the swirling fluid is PE-8, and the pore size is 30-40 microns. The oil content in the water is less than 5mg/L; the material of the cyclone is PE-5, and when the pore size is 80-64 microns, the oil content in the filtered water is less than 10mg/L, and the pressure loss of the cyclone is about 0.40Mpa.

Claims (1)

1. A non-recoil filter for incoming liquid washing wall, the main body of which is a tank body whose left and right end faces are circular arc surfaces, and is characterized in that overflow chambers are respectively opened at the left and right ends of the tank body The outlet (1) and the underflow main outlet (8), between the overflow cavity outlet (1) and the underflow main outlet (8), the inner chamber of the tank is divided into four by three circular sealing partitions that are not connected to each other The cavities are the overflow cavity (2), the inlet cavity (4), the filtered water collection cavity (5) and the underflow water outlet cavity (7); among them, on the tank side wall of the inlet cavity (4) There is a general inlet (3), which runs through the filtered water collection chamber (5) from left to right and is fixed with a cyclone cone (6) made of microporous tubes, and the top of the cyclone cone (6) The inlet disc (11) is fixed in the inlet cavity (4). The inlet disc (11) is provided with a tangential inlet tangent to the arc surface of the inlet section of the cyclone cone (6). The cyclone cone (6) The underflow port (9) at the tail end is located in the underflow water outlet cavity (7); the overflow port (12) runs through the inlet plate (11) and is fixed on the top of the cyclone cone (6), and the overflow port (12) The liquid flow inlet of the cyclone is connected with the inner cavity of the cyclone cone (6), and the liquid flow outlet of the overflow port (12) is connected with the overflow chamber (2); in the lower part of the filtered water collection chamber (5) There is a collection cavity outlet (10).