Horizontal high-speed pump with conversion use effect

Abstract

The utility model relates to a horizontal high-speed pump with a conversion use effect, and belongs to the technical field of centrifugal pumps. The impeller is of a double-suction type, namely, two single-suction impellers with the same diameter work at the same time, the flow can be doubled under the same outer diameter of the impeller, and the problem of blockage cannot be caused in the use process; meanwhile, an inlet and an outlet of the double-suction pump are in the same direction and are perpendicular to a pump shaft, and arrangement and installation of the pump and a water inlet and outlet pipe are facilitated; the double-suction impeller enables axial force to be reduced to the minimum limit, a blade profile with excellent hydraulic performance is provided, and through precision casting, the inner surface of a pump shell and the surface of the impeller are extremely smooth and have remarkable anti-cavitation performance and high efficiency. Four groups of symmetrical universal wheels are fixedly arranged at the bottom of the base; a traction frame is fixedly arranged on the outer side of the right end of the base through screws. And during transportation or position movement, hanging and displacement can be conveniently achieved through the lifting rope.

Description

Technical Field

[0001] This utility model relates to a horizontal high-speed pump with a conversion function, belonging to the field of centrifugal pump technology. Background Technology

[0002] Centrifugal pumps operate by using the centrifugal motion of water caused by the rotation of an impeller. Before starting the pump, the pump casing and suction pipe must be filled with water. Then, the motor is started, causing the pump shaft to drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion, being thrown towards the outer edge of the impeller and flowing into the pump's discharge pipe through the flow channel of the volute casing. High-speed centrifugal pumps generally consist of a motor, a speed increaser, and the pump itself. High speed can be achieved through speed-increasing gears, belt speed increasers, and frequency converters. The internal flow components of the pump generally include an inducer, impeller, discharge chamber, and guide supports. The structural and performance characteristics of high-speed centrifugal pumps make them widely used in industries such as oil refining, petrochemicals, and aerospace, for transporting easily vaporized media such as liquid ammonia, liquid nitrogen, and liquefied gas.

[0003] Centrifugal pumps are widely used in industries such as power, metallurgy, coal, and building materials to transport slurries containing solid particles. Examples include hydraulic ash removal in thermal power plants, slurry transportation in metallurgical beneficiation plants, and coal slurry and heavy media transportation in coal washing plants. When operating a centrifugal pump, the pump itself needs to be placed on land, the suction pipe submerged in water, and priming is required before starting. Due to structural limitations, mud pumps and submersible centrifugal pumps require the motor to be placed above the water surface while the pump is submerged; therefore, they must be secured, otherwise the motor falling into the water will render it unusable. Furthermore, because the length of the long shaft is generally fixed, pump installation and use are more complicated, significantly limiting their application.

[0004] Chinese utility model patent disclosure entitled "A High-Efficiency Horizontal Centrifugal Pump for Mineral Processing" (authorization announcement number CN221170022U) describes its structure as follows: It includes a pump body with an inlet plate and an outlet plate. A filter screen is positioned on the inlet plate, with its inner wall inclined. The filter screen is connected to the inlet plate via two fixing devices. A connecting plate is also located on one side of the inlet plate near the filter screen, connected to the inlet plate by multiple fixing bolts. When cleaning the filter screen, a pushing block is rotated 90° counterclockwise. A limiting component limits the position of the pushing block, separating it from the fixing block, allowing the filter screen to be removed from the inlet plate of the pump body. This device, through the separation and engagement of the pushing plate and the fixing block, enables the removal and installation of the filter screen from the inlet plate of the pump body. The structure is simple, the operation is easy, and compared to traditional cleaning methods, the overall removal and cleaning of the filter screen is more convenient.

[0005] The disadvantages of this patent are that the filter screen 8 is installed at the position of the water inlet plate 2, which will affect the water flow speed. If there are foreign objects in the water, it will cause instant blockage, resulting in the motor burning out. The whole unit is fixed on the ground, which is inconvenient to move and makes transportation inconvenient. Utility Model Content

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a horizontal high-speed pump with a convertible design. The impeller adopts a double-suction type, equivalent to two single-suction impellers of the same diameter working simultaneously. This doubles the flow rate for the same impeller outer diameter and prevents clogging during use. The pump casing is horizontally split, facilitating inspection and maintenance. Furthermore, the inlet and outlet of the double-suction pump are in the same direction and perpendicular to the pump shaft, which is beneficial for the arrangement and installation of the pump and inlet / outlet pipes. The double-suction impeller... Axial force The blade profile is reduced to a minimum while maintaining excellent hydraulic performance, and after... Precision casting The pump casing inner surface and impeller surface are extremely smooth, exhibiting significant resistance. cavitation High performance and efficiency; the base is fixed with four sets of symmetrical casters at the bottom; a traction frame is fixed to the outer right end of the base with screws; it can be easily moved by suspension ropes during transportation or relocation.

[0007] To achieve the above objectives, this utility model provides the following technical solution.

[0008] A horizontal high-speed pump with a convertible function is characterized by: a base 11, on which a flow pump 1, a pump cover 4, a bracket 7, and a motor 10 are fixed by screws; the main shaft of the motor 10 is connected to the right end of the pump shaft inside the bracket 7 via a coupling 8, and the left end of the pump shaft moves sequentially through a mechanical seal moving ring 6, a pressure cover 5, a pump cover 4, an impeller 3, and a mechanical seal stationary ring 2; the flow pump 1, the pump cover 4, and the bracket 7 are fixed together by screws and nuts on the outside; the bracket 7 is fixed to the base 11 by a horizontal hinge at the bottom and screws, and the bottom of the flow pump 1 is fixed to the base 11 by left and right screws.

[0009] At the installation position of the coupling 8, a protective cover 9 is fixed above the base 11 by screws, and the two are 3cm apart inside.

[0010] The base 11 is fixedly provided with four sets of symmetrical casters 13 at its bottom.

[0011] A traction frame 12 is fixed to the outer right end of the base 11 by screws.

[0012] The center lines of the flow pump 1, pump cover 4, bracket 7, and motor 10 are on the same horizontal plane.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Impeller 3 adopts a double-suction design, equivalent to two single-suction impellers of the same diameter working simultaneously, doubling the flow rate for the same impeller outer diameter; the pump casing is horizontally split, facilitating inspection and maintenance. Furthermore, the inlet and outlet of the double-suction pump are in the same direction and perpendicular to the pump shaft, which is beneficial for the arrangement and installation of the pump and inlet / outlet pipes; the impeller structure of the double-suction pump is symmetrical, without... Axial force The system is running relatively smoothly.

[0015] Compact structure, attractive appearance, good stability, and easy installation. Double suction impeller 3... Axial force The blade profile is reduced to a minimum while maintaining excellent hydraulic performance, and after... Precision casting The pump casing inner surface and impeller surface are extremely smooth, exhibiting significant resistance. cavitation High performance and efficiency; low noise and long service life; no adjustment required during assembly.

[0016] 2. The bottom of the base 11 is fixed with four sets of symmetrical casters 13; the outer right side of the base 11 is fixed with a traction frame 12 by screws; it can be easily moved by suspension ropes during transportation or relocation. Attached Figure Description

[0017] Figure 1 This is a front view of the present invention.

[0018] Figure 2 This is the right view of the present invention.

[0019] Figure 3 for Figure 2 Sectional view of AA.

[0020] Figure 4 for Figure 1 A three-dimensional image.

[0021] Figure 5 for Figure 4 Exploded view.

[0022] Figure 6 for Figure 4 A 3D view of the central base 11.

[0023] In the diagram: 1. Pump flow direction; 2. Mechanical seal stationary ring; 3. Impeller; 4. Pump cover; 5. Pressure cover; 6. Mechanical seal moving ring; 7. Bracket; 8. Coupling; 9. Protective cover; 10. Motor; 11. Base; 12. Traction frame; 13. Casters. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1-6 As shown, a horizontal high-speed pump with conversion function includes a base 11. A flow pump 1, a pump cover 4, a bracket 7, and a motor 10 are fixed on the top of the base 11 by screws. The main shaft of the motor 10 is connected to the right end of the pump shaft inside the bracket 7 through a coupling 8. The left end of the pump shaft moves through the mechanical seal moving ring 6, the pressure cover 5, the pump cover 4, the impeller 3, and the mechanical seal stationary ring 2 in sequence. The flow pump 1, the pump cover 4, and the bracket 7 are fixed together by screws and nuts on the outside. The bracket 7 is fixed to the base 11 by a horizontal hinge at the bottom and screws. The bottom of the flow pump 1 is fixed to the base 11 by left and right screws.

[0026] At the installation position of the coupling 8, a protective cover 9 is fixed above the base 11 by screws, and the two are 3cm apart inside.

[0027] The base 11 is fixedly provided with four sets of symmetrical casters 13 at its bottom; a traction frame 12 is fixedly provided on the outer right side of the base 11 by screws.

[0028] The center lines of the flow pump 1, pump cover 4, bracket 7, and motor 10 are on the same horizontal plane.

[0029] The working principle of this horizontal high-speed pump with conversion function:

[0030] Four sets of symmetrical casters 13 are fixedly installed at the bottom of the base 11; a traction frame 12 is fixed to the outer right end of the base 11 by screws; this allows for easy relocation by suspension with ropes during transport or movement. The impeller 3 adopts a double-suction design, equivalent to two single-suction impellers of the same diameter working simultaneously, doubling the flow rate for the same impeller outer diameter; the pump casing is horizontally split, facilitating inspection and maintenance; simultaneously, the inlet and outlet of the double-suction pump are in the same direction and perpendicular to the pump shaft, which is beneficial for the arrangement and installation of the pump and inlet / outlet pipes; the impeller 3 of the double-suction pump has a symmetrical structure, without... Axial force It operates smoothly. It has a compact structure, attractive appearance, good stability, and is easy to install. The double-suction impeller 3... Axial force The blade profile is reduced to a minimum while maintaining excellent hydraulic performance, and after... Precision casting make The pump casing inner surface and impeller surface are extremely smooth, exhibiting significant resistance. cavitationHigh performance and efficiency; low noise and long service life; no adjustment required during assembly.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A horizontal high-speed pump with a conversion function, characterized in that: The system includes a base (11), on which a flow pump (1), a pump cover (4), a bracket (7), and a motor (10) are fixed by screws. The main shaft of the motor (10) is connected to the right end of the pump shaft inside the bracket (7) via a coupling (8). The left end of the pump shaft moves through the mechanical seal ring (6), the pressure cover (5), the pump cover (4), the impeller (3), and the mechanical seal stationary ring (2) in sequence. The flow pump (1), the pump cover (4), and the bracket (7) are fixed together by screws and nuts on the outside. The bracket (7) is fixed to the base (11) by the horizontal hinge and screws at the bottom. The bottom of the flow pump (1) is fixed to the base (11) by left and right screws.

2. A horizontal high-speed pump with conversion function according to claim 1, characterized in that: At the installation position of the coupling (8), a protective cover (9) is fixed above the base (11) by screws, and the two are 3cm apart inside.

3. A horizontal high-speed pump with conversion function according to claim 1, characterized in that: The base (11) is fixedly provided with four sets of symmetrical casters (13) at its bottom.

4. A horizontal high-speed pump with conversion function according to claim 3, characterized in that: A traction frame (12) is fixed to the outer right end of the base (11) by screws.

5. A horizontal high-speed pump with conversion function according to claim 1, characterized in that: The center lines of the flow pump (1), pump cover (4), bracket (7), and motor (10) are on the same horizontal plane.

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