CN217773403U - Circulating water secondary filter screen - Google Patents

Abstract

The utility model discloses a secondary filter screen for circulating water, which belongs to the technical field of filtering equipment and comprises a housing and a driving motor. The housing is provided with a bracket, the driving motor is installed on the bracket, and the housing is provided with an upper port and a lower port , the shell is equipped with a filter screen, the filter screen is provided with a rotating shaft, and the rotating shaft is connected with the drive motor located outside the shell, and a sewage negative pressure chamber is provided on the left side wall of the shell, and a sewage discharge port is opened outside the sewage negative pressure chamber , the housing is also equipped with a flushing chamber, a group of flushers are installed in the flushing chamber, the flushers are mounted on the casing, and the flushing chamber communicates with the high-pressure water pump through a pipeline, which solves the problem of The technical problem that the attachment on the Rui filter is difficult to clean is mainly used in circulating water filtration.

Description

Circulating water secondary filter

technical field

The utility model belongs to the technical field of circulating water filtering equipment, in particular to a secondary filter screen for circulating water.

Background technique

The inventor applied for a patent for a strong sewage secondary filter on March 28, 2007. The patent application number is: 200720035746.1. There is a filter element, the filter element is provided with a rotating shaft, and the rotating shaft is connected with the rotating drive device arranged outside the housing, and a sewage negative pressure chamber is arranged on the side wall of the housing, and a sewage discharge port is opened outside the sewage negative pressure chamber, and the sewage negative pressure chamber A rubber scraper is fixed between the four walls of the inward inner port and the filter element, and a strong sewage wire brush is provided at the rubber scraper on one side of the sewage negative pressure chamber. The wire brush is fixed between the rubber scraper and the side wall of the sewage negative pressure chamber, and is fixed by the pressure plate. When backwashing cleans the sewage, opening the sewage outlet will form a negative pressure in the sewage negative pressure chamber, and the dirt on the outer wall of the filter element will be discharged through the sewage outlet. Mouth discharge. It is easy to clean the filter element to meet the design index of backwashing. After many field experiments, good results have been achieved, and the difficulty of difficult removal of plastic films has been overcome. Recently, the inventor found that when the secondary filter is used in seawater for a long time, there will be shellfish on the filter, and the shellfish will be difficult to clean off the surface of the filter. When the secondary filter is used in river water When used for a long time, snails will grow on the surface of the filter screen, and the snails adhered to the surface of the filter screen are difficult to be cleaned. In order to solve the above technical problems, the inventor and several researchers have finally solved the above technical problems after many days of research. capture.

Contents of the invention

In order to solve the technical problems proposed in the background technology, the utility model provides a secondary filter for circulating water, and the adopted technical scheme is as follows:

The circulating water secondary filter includes a shell and a drive motor. The shell is provided with an upper port and a lower port. The shell is equipped with a filter element. The filter element is provided with a rotating shaft. There is a sewage negative pressure chamber on the left side wall of the sewage negative pressure chamber, and a sewage outlet is opened outside the sewage negative pressure chamber. A rubber scraper is fixed between the four walls of the inner port of the sewage negative pressure chamber and the filter element. Sewage discharge wire brush, the output shaft of the drive motor drives the shaft to rotate through gear meshing, and the shaft drives the filter element to rotate for backwashing. The above technical content is the prior art, and the applicant will not repeat it here. For details, see Patent No.: 200720035746.1, which contains Detailed description.

The core key point of the utility model is that a flushing chamber is installed on the casing, a group of flushers are installed in the flushing chamber, the flushing apparatus is installed on the casing, and the flushing chamber is connected with high-pressure The water pumps are connected, and the utility model uses the high-pressure water flow of the high-pressure water pump to flow out through the washer to form a high-pressure water flow. The high-pressure water flow contacts the shells or snails, and the shells or snails are cleaned under the action of the high-pressure water flow.

The structure of the washer is the core part of the utility model. The washer includes two symmetrical conical shells, and the narrow parts of the two conical shells are relatively connected together, so that the openings at both ends of the entire washer are large, and the middle The opening is small, and the left side of the tapered shell is provided with a trapezoidal baffle. The trapezoidal baffle is used to separate the water flow and let the water flow out from both sides of the trapezoidal baffle. The snails or shells on the filter, the trapezoidal baffle is located in the middle of the conical shell, the right side of the conical shell is provided with a fixing ring, the middle of the fixing ring is provided with a fixing piece, the There is a rotating bearing in the middle of the fixing part, and the rotating bearing is movably connected with the impeller. The working principle of the above structure is that the water flow enters from the right side of the washer, and the water flow contacts the impeller. When the water flow drives the impeller to rotate, the impeller The rapid flow of water flow is accelerated, and the water flow passes through the drainage effect of the trapezoidal baffle to form a fast strip water flow. The strip water flow contacts the snails or shells on the filter screen to form cleaning, and finally the snails or shells are discharged from the sewage outlet.

Preferably: in order to achieve a better drainage acceleration effect, the height of the trapezoidal baffle is greater than the height of the conical shell, the material of the trapezoidal baffle is stainless steel, the surface of the trapezoidal baffle is smooth, and the cone The material of the shaped shell is a metal material, preferably stainless steel, and the number of flushers can be adjusted as required, and the number of flushers is greater than three.

The utility model has the following beneficial effects:

1. Through the structural modification of the utility model, the strong attachments on the surface of the filter screen can be quickly removed;

2. The utility model has low investment cost, reasonable structural design, good cleaning effect, can be widely used, and is suitable for comprehensive promotion and application.

Description of drawings

Fig. 1 is the internal structure drawing of the present utility model;

Fig. 2 is the internal structure diagram of the washer of the present utility model;

Fig. 3 is a three-dimensional structure diagram of the washer of the present invention;

Fig. 4 is the water flow flow diagram of the washer of the present utility model;

Fig. 5 is the left view of the washer of the present utility model;

Fig. 6 is a right view of the washer of the present invention.

In the figure: 1 bracket; 2 sewage outlet; 3 sewage negative pressure chamber; 4 upper opening; 5 drive motor; 6 housing; 7 rotating shaft; 8 filter screen; 9 lower opening; 12-1 trapezoidal baffle; 12-2 conical shell; 12-3 fixed ring; 12-3-1 fixed piece; 12-3-1-1 rotary bearing; 12-4 impeller;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

As shown in Figure 1:

The circulating water secondary filter screen includes a housing 6 and a drive motor 5, the housing 6 is provided with a bracket 1, the drive motor 5 is installed on the bracket 1, the housing 6 is provided with an upper port 4 and a lower port 9, and the housing 6 A filter screen 8 is installed inside, and the filter screen 8 is provided with a rotating shaft 7, and the rotating shaft 7 is connected with the drive motor 5 arranged outside the housing 6. On the left side wall of the housing 6, a sewage negative pressure chamber 3 is provided, and the sewage negative pressure chamber 3 is provided with a sewage outlet 2, which is characterized in that a flushing chamber 11 is installed on the housing 6, and a set of flushers 12 are installed in the flushing chamber 11, and the flushers 12 are installed in the shell On the body 6, the flushing chamber 11 communicates with the high-pressure water pump 13 through the pipeline 10.

The working principle of the utility model is as follows: the driving motor 5 drives the rotating shaft 7 to rotate at a high speed, the rotating shaft drives the filter screen 8 to rotate at a high speed, the high-pressure water pump 13 pressurizes the high-pressure water flow into the flushing chamber 11, and the high-pressure water flow passes through the flusher 12 for pressurized drainage After that, contact with the attachments on the filter screen 8 constantly and cut, attachments such as shells, snails or other shell organisms, attachments are cut off by the high-speed water flow, and finally discharged through the sewage outlet 2.

As shown in Figure 2-Figure 6:

The working principle of the washer 12 is mainly explained below. The washer 12 includes two symmetrical conical shells 12-2, and the narrow parts of the two conical shells 12-2 are relatively connected together. The left side of the casing 12-2 is provided with a trapezoidal baffle 12-1, the trapezoidal baffle 12-1 is located in the middle of the conical casing 12-2, and the right side of the conical casing 12-2 is provided with The fixed ring 12-3, the middle position of the fixed ring 12-3 is provided with a fixed piece 12-3-1, and the middle of the fixed piece 12-3-1 is provided with a rotating bearing 12-3-1-1 , the rotating bearing 12-3-1-1 is movably connected with the impeller 12-4, the height of the trapezoidal baffle 12-1 is greater than the height of the conical casing 12-2, and the trapezoidal baffle 12- 1 is made of stainless steel, the material of the conical shell 12-2 is stainless steel, and the number of the flushers 12 is 16.

The working principle of the above structure is: the high-speed water flow enters from the right side of the washer 12, the high-speed water flow contacts the impeller 12-4, the high-speed water flow drives the impeller 12-4 to rotate rapidly, and the impeller 12-4 accelerates the water flow from right to left Rapid export, due to the special structure of the washer 12, the speed of the high-speed water flow is accelerated when it flows to the middle of the washer, and the accelerated water flow passes through the drainage effect of the trapezoidal baffle 12-1 to form a fast strip water flow, strip water flow Flowing out from both sides of the trapezoidal baffle 12-1, the strip-shaped water flow contacts the snails or shells on the filter screen 8 to form a cutting action, so that the attachments attached to the filter screen 8 are cleaned out, and finally the snails or shells are removed from the filter screen 8. Sewage outlet 2 is discharged.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. The circulating water secondary filter includes a housing (6) and a driving motor (5). The housing (6) is provided with a bracket (1), and the driving motor (5) is installed on the bracket (1). (6) There is an upper port (4) and a lower port (9), and a filter screen (8) is housed in the housing (6), and the filter screen (8) is provided with a rotating shaft (7), and the rotating shaft (7) is connected with the housing The drive motor (5) outside the body (6) is connected, and a sewage negative pressure chamber (3) is provided on the left side wall of the housing (6), and a sewage discharge port (2) is opened outside the sewage negative pressure chamber (3) , characterized in that, A flushing chamber (11) is also installed on the housing (6), and a group of flushers (12) are installed in the flushing chamber (11), and the flushers (12) are mounted on the casing (6 ), the flushing chamber (11) communicates with the high-pressure water pump (13) through a pipeline (10). 2. The circulating water secondary filter according to claim 1, characterized in that, The washer (12) comprises two symmetrical conical shells (12-2), the narrow parts of the two conical shells (12-2) are relatively connected together, and the conical shells (12-2) 2) The left side is provided with trapezoidal baffle (12-1), and described trapezoidal baffle (12-1) is positioned at the middle position of conical casing (12-2), and described conical casing (12-2 The right side of ) is provided with fixed ring (12-3), and the middle position of described fixed ring (12-3) is provided with fixed piece (12-3-1), and described fixed piece (12-3-1 ) is provided with a swivel bearing (12-3-1-1) in the middle, and the swivel bearing (12-3-1-1) is movably connected with the impeller (12-4). 3. The circulating water secondary filter screen according to claim 2, characterized in that, the height of the trapezoidal baffle (12-1) is greater than the height of the conical shell (12-2), and the trapezoidal baffle The material of the plate (12-1) is stainless steel. 4. The circulating water secondary filter screen according to claim 2, characterized in that, the material of the conical shell (12-2) is stainless steel. 5. The circulating water secondary filter screen according to claim 2, characterized in that, the number of said flushers (12) is greater than three.

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