A high efficiency filtration type submersible pump

Abstract

The present invention relates to the technical field of submersible pumps, and specifically to a high-efficiency filtering submersible pump, comprising a pump body, a transmission pipe and a water inlet pipe, a filter cartridge is installed at the lower end of the water inlet pipe, the filter cartridge comprises a mounting seat fixedly connected to the water inlet pipe, a water inlet cover is provided at the bottom of the mounting seat, and a rotating filter screen is rotatably installed at the bottom of the water inlet cover, a transmission rod is fixed inside the rotating filter screen, a transmission shaft is provided inside the transmission pipe, an impeller is provided at the bottom of the transmission shaft, and the impeller is arranged inside the pump body; compared with the prior art, the present invention installs a filter cartridge with a rotating filter screen at the bottom of the water inlet pipe of the submersible pump, when large particles of impurities are adsorbed and blocked on the filter cartridge, the centrifugal force of the rotating filter screen can be used to throw out the large particles of debris or gravel, thereby effectively preventing the large particles of debris or gravel from clogging the filter screen, without the trouble of disassembly and cleaning, and improving the use efficiency of the submersible pump.

Description

Technical Field

[0001] The invention relates to the technical field of submersible pumps, in particular to a high-efficiency filtering submersible pump. Background Art

[0002] Submersible pumps are a special type of vertical pumps that immerse the impeller, pump body and other flow-passing parts in the medium being transported, and the motor and other driving mechanisms are located above the foundation. They account for a considerable proportion of the pump products used in my country. Compared with horizontal pumps, they have the advantages of vertical installation, less floor space, reduced pump room area, and lower capital construction costs. The impeller of the submersible pump is immersed in the medium being transported, and there is no need to prime the pump when starting, and centralized automatic control can be implemented. Compared with submersible pumps, they have the advantage of safe electricity use. Therefore, submersible pumps have been widely used in industries such as metallurgy, petrochemicals, power plants, and environmental protection.

[0003] At present, submersible pumps are often used for sewage discharge. In order to prevent large particles of debris or gravel in sewage from entering the pump body, a corresponding filter screen is generally provided on the water inlet pipe of the traditional submersible pump. However, after long-term use, the filter screen is prone to blockage and needs to be disassembled for cleaning or replacement, resulting in low working efficiency of the submersible pump. Therefore, the present invention proposes a high-efficiency filtering submersible pump that can solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a high-efficiency filtering submersible pump to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency filtering submersible pump, comprising a pump body, a transmission pipe and a water inlet pipe, a filter cartridge is installed at the lower end of the water inlet pipe, the filter cartridge comprises a mounting seat fixedly connected to the water inlet pipe, a water inlet cover is provided at the bottom of the mounting seat, and a rotating filter screen is rotatably installed at the bottom of the water inlet cover, a transmission rod is fixed inside the rotating filter screen, a transmission shaft is provided inside the transmission pipe, an impeller is provided at the bottom of the transmission shaft, and the impeller is provided inside the pump body, and the upper end of the transmission rod is fixed to the impeller.

[0006] As a preferred technical solution of the present invention, a threaded sleeve is fixedly connected to the upper end of the transmission rod, a threaded groove is formed on the lower surface of the impeller, and the threaded sleeve is matched with the threaded groove.

[0007] As a preferred technical solution of the present invention, the water inlet cover is in a truncated cone shape, and a mounting portion is provided at the lower end of the water inlet cover, and the mounting portion is rotatably connected to the rotating filter screen.

[0008] As a preferred technical solution of the present invention, a rotating groove is provided on the inner surface of the mounting portion, a rotating ring is provided on the outside of the rotating filter screen, and the rotating ring is rotatably mounted in the rotating groove.

[0009] As a preferred technical solution of the present invention, the rotating filter screen includes an outer disk, a filter screen and a connecting cap, and the connecting cap is arranged at the center of the filter screen, the outer disk is arranged outside the filter screen, and the connecting cap is fixedly connected to the lower end of the transmission rod.

[0010] As a preferred technical solution of the present invention, the filter screen has a conical structure, and the inclination angle α between the outer disk and the horizontal plane is greater than 10°.

[0011] As a preferred technical solution of the present invention, one end of the pump body is connected to a water outlet pipe, and one side of the interior of the pump body is provided with a water outlet connected to the water outlet pipe.

[0012] As a preferred technical solution of the present invention, it also includes a mounting plate and a motor, wherein the mounting plate is fixedly sleeved on the outside of the water outlet pipe and the transmission pipe, the motor is mounted on the upper end of the mounting plate, and the output shaft of the motor is fixedly connected to the transmission shaft.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. A high-efficiency filtering submersible pump of the present invention is characterized in that a filter cartridge with a rotating filter screen is installed at the bottom of a water inlet pipe of the submersible pump. The rotating filter screen of the filter cartridge can rotate synchronously when the submersible pump is working. When sewage enters the filter cartridge under negative pressure, large particles of debris in the sewage will be blocked by the rotating filter screen rotating at high speed, and will collide and rebound to the outside of the filter cartridge, thereby reducing the clogging effect of large particles of impurities on the filter cartridge. Moreover, when large particles of impurities are adsorbed and clogged on the filter cartridge, the centrifugal force of the rotating filter screen can be used to throw out the large particles of debris or gravel, thereby effectively preventing the large particles of debris or gravel from clogging the filter screen, without the trouble of disassembly and cleaning, and improving the use efficiency of the submersible pump.

[0015] 2. A high-efficiency filtering submersible pump of the present invention utilizes a rotating filter screen, a transmission rod, a threaded sleeve, a transmission shaft and an impeller. During operation, the rotating impeller can drive the rotating filter screen to rotate, thereby providing a good driving force for the rotating filter screen, allowing the rotating filter screen to keep rotating at all times, thereby improving the cleaning effect of the blockage on the filter screen.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the internal connection between the transmission pipe, the pump body and the filter cartridge of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 For the present invention Figure 1 A magnified view of the structure at center;

[0020] Figure 4 For the present invention Figure 1 A magnified view of the structure at B in the middle;

[0021] Figure 5 A bottom view of the rotary filter screen of the present invention;

[0022] In the figure: 1. pump body; 2. transmission pipe; 3. mounting plate; 4. motor; 5. water inlet pipe; 6. filter cartridge; 601. mounting seat; 602. water inlet cover; 603. rotating filter screen; 604. transmission rod; 61. threaded sleeve; 611. outer plate; 612. filter screen; 613. connecting cap; 614. rotating circle; 621. mounting part; 622. rotating groove; 7. water outlet pipe; 8. transmission shaft; 9. impeller; 91. threaded groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-5The present invention provides a technical solution: a high-efficiency filtering submersible pump, comprising a pump body 1, a transmission pipe 2, a mounting plate 3, a motor 4 and a water inlet pipe 5, a filter cartridge 6 is mounted at the lower end of the water inlet pipe 5, the filter cartridge 6 comprises a mounting seat 601 fixedly connected to the water inlet pipe 5, a water inlet cover 602 is arranged at the bottom of the mounting seat 601, and a rotating filter screen 603 is rotatably mounted at the bottom of the water inlet cover 602, a transmission rod 604 is fixed inside the rotating filter screen 603, a transmission shaft 8 is arranged inside the transmission pipe 2, and a transmission shaft 8 is arranged inside the transmission pipe 2. An impeller 9 is provided at the bottom of the driving shaft 8, and the impeller 9 is arranged inside the pump body 1. The upper end of the transmission rod 604 is fixed to the impeller 9. One end of the pump body 1 is connected to the water outlet pipe 7, and one side of the inside of the pump body 1 is provided with a water outlet connected to the water outlet pipe 7. The mounting plate 3 is fixedly sleeved on the outside of the water outlet pipe 7 and the transmission pipe 2. The motor 4 is mounted on the upper end of the mounting plate 3, and the output shaft of the motor 4 is fixedly connected to the transmission shaft 8. The filter cartridge 6 can be installed at the bottom of the water inlet pipe 5 through the mounting seat 601.

[0027] In the present invention, the upper end of the transmission rod 604 is fixedly connected with a threaded sleeve 61, and a threaded groove 91 is opened on the lower surface of the impeller 9, and the threaded sleeve 61 is adapted to the threaded groove 91. By using the threaded sleeve 61 and the threaded groove 91, the transmission rod 604 can be well fixedly installed on the impeller 9, so that when the motor 4 drives the transmission shaft 8 to rotate, and the transmission shaft 8 drives the impeller 9 to rotate, the impeller 9 can drive the transmission rod 604 to rotate synchronously, and then drive the rotating filter screen 603 to rotate on the water inlet cover 602, so that the blocked impurities on the filter screen 612 can be well thrown out by using centrifugal force.

[0028] In the present invention, the water inlet cover 602 is in a truncated cone shape, and a mounting portion 621 is provided at the lower end of the water inlet cover 602 , and the mounting portion 621 is rotatably connected to the rotating filter screen 603 .

[0029] In the present invention, a rotating groove 622 is provided on the inner surface of the mounting portion 621, a rotating ring 614 is provided on the outside of the rotating filter 603, and the rotating ring 614 is rotatably installed in the rotating groove 622. By using the rotating groove 622 and the rotating ring 614, the rotating filter 603 can be well rotated on the mounting portion 621.

[0030] In the present invention, the rotating filter 603 includes an outer disk 611, a filter 612 and a connecting cap 613, and the connecting cap 613 is arranged at the center of the filter 612, the outer disk 611 is arranged outside the filter 612, and the connecting cap 613 is fixedly connected to the lower end of the transmission rod 604.

[0031] The filter screen 612 has a conical structure, and the inclined angle α between the outer disk 611 and the horizontal plane is greater than 10°. The inclined setting of the outer disk 611 can facilitate the impurities thrown out from the filter screen 612 to slide out quickly, preventing the outer disk 611 from causing adverse obstruction to the impurity throwing process. At the same time, when some large particles of impurities are thrown out along the direction of the filter screen 612 and then contact the outer disk 611, due to the setting of the inclined angle between the filter screen 612 and the outer disk 611, the large particles of impurities can collide with the outer disk 611, and then after reflection, the large particles of impurities can be better discharged to the outside of the filter cartridge 6.

[0032] It should be noted that when the present invention is used, the filter cartridge 6 can be installed at the bottom of the water inlet pipe 5 through the mounting seat 601, and the rotating groove 622 and the rotating circle 614 can be used to make the rotating filter screen 603 rotate well on the mounting portion 621. The threaded sleeve 61 and the threaded groove 91 can be used to fix the transmission rod 604 on the impeller 9 well, so that when the motor 4 drives the transmission shaft 8 to rotate, and the transmission shaft 8 drives the impeller 9 to rotate, the impeller 9 can drive the transmission rod 604 to rotate synchronously, thereby driving the rotating filter screen 603 to rotate on the water inlet cover 602. When the sewage enters the filter cartridge 6 under negative pressure, the large particles of debris in the sewage will be filtered by the high-speed rotating rotary filter. The mesh 603 blocks and collides and rebounds to the outside of the filter cartridge 6, thereby reducing the clogging effect of large particles of impurities on the filter cartridge 6, and when large particles of impurities are adsorbed and clogged on the filter cartridge 6, the centrifugal force of the rotating filter mesh 603 can be used to throw out large particles of debris or gravel, without the trouble of disassembly and cleaning, thereby improving the use efficiency of the submersible pump, and utilizing the rotating filter mesh 603, the transmission rod 604, the threaded sleeve 61, the transmission shaft 8 and the impeller 9, the rotating impeller 9 can drive the rotating filter mesh 603 to rotate during operation, providing a good driving force for the rotating filter mesh 603, allowing the rotating filter mesh 603 to keep rotating at all times, thereby improving the cleaning effect of the blockage on the filter mesh 612.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency filtering submersible pump, comprising a pump body (1), a transmission pipe (2) and a water inlet pipe (5), characterized in that: A filter cartridge (6) is installed at the lower end of the water inlet pipe (5), and the filter cartridge (6) comprises a mounting seat (601) fixedly connected to the water inlet pipe (5); a water inlet cover (602) is provided at the bottom of the mounting seat (601), and a rotating filter screen (603) is rotatably installed at the bottom of the water inlet cover (602); a transmission rod (604) is fixed inside the rotating filter screen (603); a transmission shaft (8) is provided inside the transmission pipe (2), an impeller (9) is provided at the bottom of the transmission shaft (8), and the impeller (9) is arranged inside the pump body (1); and the upper end of the transmission rod (604) is fixed to the impeller (9); The water inlet cover (602) is in a truncated cone shape, and a mounting portion (621) is provided at the lower end of the water inlet cover (602), wherein the mounting portion (621) is rotatably connected to the rotating filter screen (603); The inner surface of the mounting portion (621) is provided with a rotating groove (622), the outer portion of the rotating filter screen (603) is provided with a rotating ring (614), and the rotating ring (614) is rotatably mounted in the rotating groove (622).

2. A high efficiency filtration submersible pump according to claim 1, characterized in that: The upper end of the transmission rod (604) is fixedly connected to a threaded sleeve (61), a threaded groove (91) is provided on the lower surface of the impeller (9), and the threaded sleeve (61) is adapted to fit the threaded groove (91).

3. A high efficiency filtration submersible pump according to claim 1, characterized in that: The rotating filter screen (603) comprises an outer disk (611), a filter screen (612) and a connecting cap (613), wherein the connecting cap (613) is arranged at the center of the filter screen (612), the outer disk (611) is arranged outside the filter screen (612), and the connecting cap (613) is fixedly connected to the lower end of the transmission rod (604).

4. A high efficiency filtration submersible pump according to claim 3, characterized in that: The filter screen (612) has a conical structure, and the outer disk (611) has an inclination angle α>10° with the horizontal plane.

5. A high efficiency filtration submersible pump according to claim 1, characterized in that: One end of the pump body (1) is connected to a water outlet pipe (7), and one side of the interior of the pump body (1) is provided with a water outlet connected to the water outlet pipe (7).

6. A high efficiency filtration submersible pump according to claim 5, characterized in that: It also comprises a mounting plate (3) and a motor (4), wherein the mounting plate (3) is fixedly sleeved on the outside of the water outlet pipe (7) and the transmission pipe (2), the motor (4) is mounted on the upper end of the mounting plate (3), and the output shaft of the motor (4) is fixedly connected to the transmission shaft (8).

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