CN212130819U

CN212130819U - High-efficiency energy-saving dredging stirring pump

Info

Publication number: CN212130819U
Application number: CN202020807459.3U
Authority: CN
Inventors: 冯万全; 冯万明
Original assignee: Individual
Current assignee: Pingdingshan Fenghui Mining Equipment Manufacturing Co.,Ltd.
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-11
Anticipated expiration: 2030-05-14

Abstract

Energy-efficient desilting agitator pump belongs to pump technical field. The stirring head is installed below the impeller through an impeller shaft, a motor lower end cover, a sealing shell and a water collecting chamber are integrally connected to form an oil chamber bearing seat, an annular cavity is formed between a shell and the motor shell, the water collecting chamber at the lower end of the annular cavity is communicated with the water collecting chamber, a pump body is provided with symmetrical double-vortex flow channels, an auxiliary impeller and the impeller are coaxially arranged, the auxiliary impeller is arranged between the impeller and a mechanical sealing cover, a pressure reducing hole is formed in the mechanical sealing cover, and two cable introducing devices are respectively arranged on the motor upper cover and the outer surface of a stirring pump body. The utility model discloses in the design of impeller, the pump body, auxiliary impeller, grease chamber bearing frame, cable draw-in device isotructure, be different from ordinary agitator pump, it can discharge concentration and be less than 65%, solid particle is less than 30 millimeters medium, and stirring effect is good, can stir the suspension with sedimentary solid, the dependable performance, energy-efficient, longe-lived, and the installation is maintained conveniently, is particularly useful for the desilting of coal bunker bottom.

Description

High-efficiency energy-saving dredging stirring pump

Technical Field

The utility model belongs to the technical field of the pump, especially, relate to a desilting agitator pump.

Background

The dredging stirring pump is made of high-chromium wear-resistant alloy materials, has strong wear resistance and large impeller flow passage, and is suitable for conveying media such as silt, ore pulp, coal slurry, sand and stone containing large solid particles.

The common stirring pump can only discharge a medium with the concentration of less than 20% and the solid particle of less than 10 mm, is easy to wind, consumes large power of a motor, and cannot be suitable for the environment of high-concentration liquid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-efficient desilting agitator pump for solve the problem that exists among the above-mentioned background art.

The utility model adopts the technical proposal that: the efficient energy-saving dredging stirring pump comprises a stirring pump body, and further comprises a stirring head, an auxiliary impeller and two cable leading-in devices; the utility model discloses a stirring pump, including stirring pump body, impeller shaft, impeller, sealed shell, collecting chamber, motor lower extreme collecting chamber intercommunication, the impeller is installed in the impeller shaft below, and the stirring head sets up in the pump stand, motor lower extreme, sealed shell, the collecting chamber body coupling that the stirring pump body was equipped with form grease chamber bearing frame, the motor casing outside of stirring pump body is equipped with the shell, is equipped with the ring chamber between shell and the motor casing, ring chamber lower extreme collecting chamber intercommunication, the two vortex runners of symmetry that the internal pump body of stirring pump was equipped with, the expeller sets up with the impeller is coaxial, and the expeller sets up between impeller and mechanical seal lid, and mechanical seal covers and sets up the pressure relief vent, two cable introducing device set up respectively on covering and stirring pump.

The beneficial effects of the utility model reside in that:

the utility model discloses in the design of impeller, the pump body, auxiliary impeller, grease chamber bearing frame, cable draw-in device isotructure, be different from ordinary agitator pump, it can discharge concentration and be less than 65%, solid particle is less than 30 millimeters medium, and stirring effect is good, can stir the suspension with sedimentary solid, the dependable performance, energy-efficient, longe-lived, and the installation is maintained conveniently, is particularly useful for the desilting of coal bunker bottom.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a pump body flow passage;

FIG. 3 is a cross-sectional view of the pump body;

wherein: 1-stirring pump body; 2-a housing; 3-motor casing; 4-ring cavity; 5, a lower end cover of the motor; 6-sealing the shell; 7-a water collecting chamber; 8-oil chamber bearing seat; 9-impeller shaft; 10-shaft sleeve; 11-a stirring head; 12-an impeller; 13-a pump body; 14-a secondary impeller; 15-mechanical sealing cover; 16-a pressure relief vent; 17-motor upper cover; 18-a cable lead-in; 19-a junction box cover; 20-water outlet cover; 21-a cable; 22-a pump mount; 23-double vortex flow path.

Detailed Description

As shown in fig. 1 to 3, the high-efficiency energy-saving dredging stirring pump comprises a stirring pump body 1, and further comprises a stirring head 11, an auxiliary impeller 14 and two cable leading-in devices 18;

the stirring head 11 is arranged below the impeller 12 through the impeller shaft 9, the stirring head 11 is arranged in the pump seat 22, the stirring head 11 adopts inclined straight blades, the structure is simple, deposited solids can be crushed, long-fiber-shaped dirt can be prevented from being wound, and the long-fiber-shaped dirt can be suspended again;

the lower end cover 5 of the motor, the sealing shell 6 and the water collecting chamber 7 which are arranged on the stirring pump body 1 are integrally connected to form an oil chamber bearing seat 8, so that the stirring pump is simple in structure and convenient to install;

the outer side of a motor shell 3 of the stirring pump body 1 is provided with a shell 2, an annular cavity 4 is arranged between the shell 2 and the motor shell 3, a water collecting chamber 7 at the lower end of the annular cavity 4 is communicated, when the pump runs, a medium path takes away heat generated by a stator through the annular cavity 4 between the motor shell 3 and the shell 2, so that the motor is cooled, and the service life of the motor is prolonged;

the symmetrical double-vortex flow channel 23 arranged on the pump body 13 in the mixing pump body 1 can balance the radial pressure of liquid in the mixing pump body 1, so that the service life of a pump bearing and a mechanical seal can be prolonged to the maximum extent.

The auxiliary impeller 14 and the impeller 12 are coaxially arranged, the auxiliary impeller 14 is arranged between the impeller 12 and the mechanical sealing cover 15, the mechanical sealing cover 15 is provided with a pressure reducing hole 16, when the pump runs, a high-pressure medium leaked from an impeller opening ring is thrown out through the auxiliary impeller 14, the high-pressure medium is prevented from entering a mechanical sealing chamber, a low-pressure state is kept in the mechanical sealing chamber, the mechanical sealing is not impacted by high pressure, good running is kept, and the sealing effect is good;

two cable introducing devices 18 are respectively arranged on the motor upper cover 17 and the outer surface of the mixing pump body 1, the cable introducing devices 18 are designed into an inner set and an outer set, the sealing effect is obviously improved, and the problem that the motor water enters due to the fact that cables are dragged against regulations in the transportation process of the pump is solved.

The outer side of the impeller shaft 9 is wrapped with a shaft sleeve 10, the shaft sleeve 10 protects the impeller shaft 9, the impeller shaft 9 is prevented from being rusted, and the rigidity of the impeller shaft 9 is improved.

The water outlet cover 20 which is sleeved outside the junction box cover 19 is installed at the upper end of the shell 2, a communicating channel for installing a cable 21 is arranged between the junction box cover 19 and the water outlet cover 20, a water outlet is formed in the top of the water outlet cover 20, the water outlet is communicated with the annular cavity 4 between the shell 2 and the motor shell 3, and the cable leading-in device 18 which is arranged outside is installed on the water outlet cover 20.

The cable lead-in 18 is prior art.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an energy-efficient desilting agitator pump, includes agitator pump body (1), its characterized in that: the high-efficiency energy-saving desilting stirring pump also comprises a stirring head (11), an auxiliary impeller (14) and two cable leading-in devices (18); stirring head (11) are installed in impeller (12) below through impeller shaft (9), and stirring head (11) set up in pump block (22), motor lower end cover (5), seal shell (6), drip chamber (7) body coupling that stirring pump body (1) was equipped with forms grease chamber bearing frame (8), motor shell (3) outside of stirring pump body (1) is equipped with shell (2), is equipped with ring chamber (4) between shell (2) and the motor shell (3), ring chamber (4) lower extreme drip chamber (7) intercommunication, two vortex runners of symmetry (23) that pump body (13) was equipped with in stirring pump body (1), impeller (14) and impeller (12) coaxial setting, impeller (14) set up between impeller (12) and mechanical seal lid (15), and set up pressure reduction hole (16) on mechanical seal lid (15), two cable introducing device (18) set up respectively on motor upper cover (17) and stirring pump body (17), (17) 1) On the outer surface.

2. The high-efficiency energy-saving dredging stirring pump as claimed in claim 1, characterized in that: the outer side of the impeller shaft (9) is wrapped with a shaft sleeve (10).

3. The high-efficiency energy-saving dredging stirring pump as claimed in claim 1 or 2, characterized in that: the water outlet cover (20) sleeved outside the junction box cover (19) is installed at the upper end of the shell (2), a communication channel used for installing a cable (21) is arranged between the junction box cover (19) and the water outlet cover (20), a water outlet is formed in the top of the water outlet cover (20), a water outlet is communicated with an annular cavity (4) between the shell (2) and the motor shell (3), and the cable introducing device (18) arranged on the outer side is installed on the water outlet cover (20).