A high pressure pulse backflush filter

Abstract

This utility model relates to the field of backwash filter technology and discloses a high-pressure pulse backwash filter, including a tank with a high-pressure air pipe rotatably connected to the top of the tank. This high-pressure pulse backwash filter, through the arrangement of a rotating mechanism, high-pressure air pipe, and nozzles, operates as follows: When a drive motor on one side is activated, it drives a top auxiliary gear and a main gear meshing with the auxiliary gear to rotate. This causes the high-pressure air pipe installed inside the main gear to rotate inside the tank under the drive of the top rotating joint. In conjunction with a pulse generator on one side, high-pressure gas is delivered to the nozzles. The high-pressure gas is then ejected at high speed in a pulsed form through the inclined injection holes of the nozzles. Because the nozzles are rotating, the ejected high-pressure pulsed airflow can evenly cover every area of ​​the filter's inner surface, avoiding any dead zones that could affect the normal operation of the device.

Description

Technical Field

[0001] This utility model relates to the field of backwash filter technology, and in particular to a high-pressure pulse backwash filter. Background Technology

[0002] High-pressure pulse backwash filters are widely used in high-pressure fluid filtration in industries such as petroleum, chemical, and power. They trap impurities in the fluid through a filter screen and regenerate the screen by backwashing it with high-pressure pulsed air or liquid flow. However, existing filters have several drawbacks: the filter components are mostly single-layer filter screens, making it difficult to balance filtration accuracy and strength, and they are easily damaged by impurities under high pressure; the nozzles of the backwashing device are fixed in position, preventing all-around washing of the filter screen and creating blind spots that lead to localized impurities and secondary clogging; the pulse pressure and frequency are not adjustable, making it difficult to adapt to fluids with different viscosities and impurity contents, resulting in unstable backwashing effects; in addition, the connection between the filter screen and the filter frame is complex, making replacement inconvenient, and the inner wall of the housing lacks anti-corrosion treatment, resulting in a short service life in corrosive fluids.

[0003] Regarding the structure of backwash nozzles, most existing technologies employ fixed, non-rotating nozzles. These nozzles are typically fixed above the filter screen at a specific angle, allowing only localized rinsing. For large-area filters or scenarios with unevenly distributed impurities, blind spots in rinsing are highly likely to occur. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a high-pressure pulse backwash filter to solve the problem mentioned in the background art that most existing backwash nozzles use fixed, non-rotating nozzles.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure pulse backwash filter, comprising a tank, a high-pressure air pipe rotatably connected to the top of the tank, a nozzle installed at the bottom of the high-pressure air pipe, a rotating mechanism fixedly connected to the surface of the high-pressure air pipe, two filter screens installed inside the tank, a vibration mechanism installed on the surface of the filter screens, the rotating mechanism comprising a main gear fixedly connected to the surface of the high-pressure air pipe, an auxiliary gear meshing on one side of the main gear, and a drive motor fixedly connected to the bottom of the auxiliary gear; the vibration mechanism comprising a connecting rod installed on the surface of the filter screens, a waterproof housing fixedly connected to one side of the connecting rod, and a vibration motor installed inside the waterproof housing.

[0008] As a further embodiment of this utility model, a rotary joint is rotatably connected to the top of the high-pressure gas pipe, and a pulse generator is connected to the top of the rotary joint. One side of the pulse generator is connected to an external gas supply structure through a pipe. The rotary joint serves as a transfer mechanism.

[0009] As a further embodiment of this utility model, a water inlet is provided on the lower surface of the tank and a water outlet is provided on the upper surface of the tank. The water outlet serves to drain water.

[0010] As a further embodiment of this utility model, a drain port is provided at the bottom of the tank, and a valve is installed on the surface of the drain port. The drain port serves to discharge sewage.

[0011] As a further embodiment of this utility model, a PLC controller is installed in the middle of the surface of the tank. One side of the PLC controller is electrically connected to one side of the drive motor via a power line. The drive motor is configured to drive the top auxiliary gear to rotate.

[0012] As a further embodiment of this utility model, four support legs are fixedly connected to the bottom of the tank body, and anti-slip pads are installed on the bottom of the support legs. The anti-slip pads play a role in preventing slipping.

[0013] As a further embodiment of this utility model, flange connectors are fixedly connected to the surfaces of both the inlet and outlet. The flange connectors have connection holes on their surfaces, which serve to fix the flange connectors in place.

[0014] (III) Beneficial Effects

[0015] This utility model provides a high-pressure pulse backwash filter, which has the following beneficial effects:

[0016] 1. This high-pressure pulse backwash filter, through the arrangement of a rotating mechanism, high-pressure air pipes, and nozzles, operates by starting a drive motor on one side. The drive motor rotates the top auxiliary gear and the main gear meshing with the auxiliary gear. This causes the high-pressure air pipe installed inside the main gear to rotate under the drive of the top rotating joint, thereby rotating several nozzles at the bottom inside the tank. In conjunction with a pulse generator on one side, high-pressure gas is delivered to the nozzles. The high-pressure gas is then ejected at high speed in a pulse form through the inclined injection holes of the nozzles. Because the nozzles are rotating, the ejected high-pressure pulse airflow can evenly cover every area of ​​the inner surface of the filter screen, avoiding any dead corners in the rinsing process and ensuring the normal operation of the device.

[0017] 2. This high-pressure pulse backwash filter, through the setting of the vibration mechanism, addresses the issue of stubborn stains adhering to the filter screen surface during use. A waterproof casing is installed on each filter screen surface, and a vibration motor inside the casing vibrates the stubborn substances adhering to the filter screen surface, breaking the adhesion between the stubborn stains and the filter screen surface. This loosens and peels off the tightly attached impurities. Combined with the high-pressure pulse airflow from the rotating nozzle, the loosened impurities can be quickly and thoroughly flushed away, preventing stubborn stains from remaining and clogging the filter screen, thus improving the backwashing effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rotating mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the vibration mechanism structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the tank structure of this utility model.

[0022] In the diagram: 1. Tank; 2. High-pressure air pipe; 3. Nozzle; 4. Rotating mechanism; 401. Main gear; 402. Auxiliary gear; 403. Drive motor; 5. Filter screen; 6. Vibration mechanism; 601. Connecting rod; 602. Waterproof casing; 603. Vibration motor; 7. Rotary joint; 8. Pulse generator; 9. Water inlet; 10. Water outlet; 11. Sewage outlet; 12. Valve; 13. PLC controller; 14. Support leg; 15. Flange connector. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a high-pressure pulse backwash filter, including a tank 1, a high-pressure air pipe 2 rotatably connected to the top of the tank 1, a nozzle 3 installed at the bottom of the high-pressure air pipe 2, and a rotating mechanism 4 fixedly connected to the surface of the high-pressure air pipe 2. The arrangement of the rotating mechanism 4, the high-pressure air pipe 2, and the nozzle 3 avoids the existence of washing dead corners, which would affect the normal use of the device. Two filter screens 5 are installed inside the tank 1, and a vibration mechanism 6 is installed on the surface of the filter screens 5. The arrangement of the vibration mechanism 6 avoids stubborn dirt residue from clogging the filter screens and improves the backwashing effect.

[0025] The rotating mechanism 4 includes a main gear 401 fixedly connected to the surface of the high-pressure air pipe 2, an auxiliary gear 402 meshing on one side of the main gear 401, and a drive motor 403 fixedly connected to the bottom of the auxiliary gear 402.

[0026] The vibration mechanism 6 includes a connecting rod 601 mounted on the surface of the filter screen 5. A waterproof housing 602 is fixedly connected to one side of the connecting rod 601. A vibration motor 603 is installed inside the waterproof housing 602.

[0027] The top of the high-pressure air pipe 2 is rotatably connected to a rotary joint 7, and the top of the rotary joint 7 is connected to a pulse generator 8. One side of the pulse generator 8 is connected to an external air supply structure through a pipe. The rotary joint 7 serves as a transfer device.

[0028] A water inlet 9 is provided on the lower surface of the tank body 1, and a water outlet 10 is provided on the upper surface of the tank body 1. The water outlet 10 serves to drain water.

[0029] The bottom of the tank body 1 is provided with a drain port 11, and a valve 12 is installed on the surface of the drain port 11. The drain port 11 is designed to discharge sewage.

[0030] A PLC controller 13 is installed in the middle of the surface of the tank body 1. One side of the PLC controller 13 is electrically connected to one side of the drive motor 403 through a power line. The drive motor 403 is configured to drive the top auxiliary gear 402 to rotate.

[0031] Four support legs 14 are fixedly connected to the bottom of the tank body 1. Anti-slip pads are installed on the bottom of the support legs 14, which play a role in preventing slipping.

[0032] Flange connectors 15 are fixedly connected to the surfaces of both the inlet 9 and the outlet 10. The surface of the flange connector 15 is provided with connection holes, which serve to fix the flange connector 15.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: When in use, start the drive motor 403 on one side. The drive motor 403 drives the top auxiliary gear 402 and the main gear 401 meshing on the surface of the auxiliary gear 402 to rotate. This causes the high-pressure air pipe 2 installed inside the main gear 401 to drive the several nozzles 3 at the bottom to rotate inside the tank 1 under the drive of the top rotating joint 7. With the help of the pulse generator 8 set on one side, high-pressure gas is delivered to the several nozzles 3. The high-pressure gas is ejected at high speed in the form of pulse through the inclined injection hole of the nozzle 3. Since the nozzle 3 is in a rotating state, the ejected high-pressure pulse airflow can evenly cover every area of ​​the inner surface of the filter screen.

[0035] The second step: During use, because stubborn stains are attached to the surface of the filter screen 5 and cannot be washed off, a waterproof housing 602 is installed on the surface of each filter screen 5. The vibration motor 603 installed inside the waterproof housing 602 vibrates the stubborn substances attached to the surface of the filter screen 5, breaks the adhesion between the stubborn stains and the surface of the filter screen, loosens and peels off the tightly attached impurities, and, together with the high-pressure pulse airflow sprayed from the rotating nozzle 3, can quickly and thoroughly wash away the loosened impurities.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure pulse backwash filter, comprising a tank (1), characterized in that: The top of the tank (1) is rotatably connected to a high-pressure air pipe (2), the bottom of the high-pressure air pipe (2) is equipped with a nozzle (3), the surface of the high-pressure air pipe (2) is fixedly connected to a rotating mechanism (4), the inside of the tank (1) is equipped with two filter screens (5), and the surface of the filter screens (5) is equipped with a vibration mechanism (6). The rotating mechanism (4) includes a main gear (401) fixedly connected to the surface of the high-pressure air pipe (2), an auxiliary gear (402) meshing on one side of the main gear (401), and a drive motor (403) fixedly connected to the bottom of the auxiliary gear (402). The vibration mechanism (6) includes a connecting rod (601) installed on the surface of the filter screen (5), and a waterproof housing (602) is fixedly connected to one side of the connecting rod (601). A vibration motor (603) is installed inside the waterproof housing (602).

2. The high-pressure pulse backwash filter according to claim 1, characterized in that: The top of the high-pressure gas pipe (2) is rotatably connected to a rotating joint (7), and the top of the rotating joint (7) is connected to a pulse generator (8). One side of the pulse generator (8) is connected to an external gas supply structure through a pipe.

3. The high-pressure pulse backwash filter according to claim 1, characterized in that: The lower surface of the tank (1) is provided with a water inlet (9), and the upper surface of the tank (1) is provided with a water outlet (10).

4. A high-pressure pulse backwash filter according to claim 1, characterized in that: The bottom of the tank (1) is provided with a drain port (11), and a valve (12) is installed on the surface of the drain port (11).

5. A high-pressure pulse backwash filter according to claim 1, characterized in that: A PLC controller (13) is installed in the middle of the surface of the tank (1), and one side of the PLC controller (13) is electrically connected to one side of the drive motor (403) via a power line.

6. A high-pressure pulse backwash filter according to claim 1, characterized in that: The bottom of the tank (1) is fixedly connected to four support legs (14), and the bottom of the support legs (14) is equipped with anti-slip pads.

7. A high-pressure pulse backwash filter according to claim 3, characterized in that: The surfaces of the inlet (9) and outlet (10) are fixedly connected with flange connectors (15), and the surfaces of the flange connectors (15) are provided with connection holes.

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