Solid-liquid mixed medium delivery pump

Abstract

The utility model discloses a kind of solid-liquid mixed medium conveying pump, including, pump body, volute is arranged on pump body, the output end of pump body is provided with the impeller for conveying solid-liquid mixture, and the impeller is located inside the cavity of volute, impeller includes mounting disc and two groups of arc flow guide block being cooperatively arranged on mounting disc, volute is detachably provided with cover, the side of cover is provided with the flow limiting disc that can be cooperated with arc flow guide block. The utility model passes through the installation of flow limiting disc and impeller, the flow guiding effect of flow limiting disc, make medium only pass through the channel diffusion formed outside arc flow guide block, and the setting of double sets of arc flow guide block, further widen channel space, so that the pump can easily cope with mixed medium containing large particles or high concentration solid, avoid the disorderly flow and jam risk of medium in impeller inside, impeller integrally cast into shape, reduce the risk of component fracture or wear, improve the service life of conveying pump.

Description

Technical Field

[0001] This utility model relates to the field of pump technology, specifically a solid-liquid mixed medium pump. Background Technology

[0002] A solid-liquid mixture pump is a device used to transport liquid media containing solid particles. It mainly uses the high-speed rotation of the impeller to throw the solid-liquid mixture towards the outer edge of the impeller under the action of centrifugal force, thereby gaining energy and being transported out.

[0003] Existing transfer pumps are typically designed for conveying clean or low-concentration suspensions. Their flow channel dimensions and impeller structures may not be suitable for handling large solid particles. When the medium contains large solid particles, these particles easily accumulate inside the pump, causing flow channel blockage. Blockage not only affects the normal operation of the pump but may also lead to serious consequences such as overload and motor burnout. Furthermore, when conveying mixed media containing large solid particles, the impeller, pump casing, and other flow components are easily subjected to impact and wear from solid particles. This wear not only reduces the pump's service life but also affects its performance and efficiency. When large solid particles flow at high speed inside the pump, they can cause significant mechanical damage to the pump body, leading to a decline in equipment performance over long-term operation. Utility Model Content

[0004] The purpose of this invention is to provide a solid-liquid mixed medium transfer pump to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A solid-liquid mixture conveying pump includes a pump body, a volute disposed on the pump body, an impeller for conveying the solid-liquid mixture disposed at the output end of the pump body, and the impeller being located inside the cavity of the volute. The impeller includes a mounting disc and two sets of arc-shaped guide blocks that are fitted on the mounting disc. A cover is detachably disposed on the volute, and a flow-limiting disc that can cooperate with the arc-shaped guide blocks is disposed on one side of the cover.

[0007] Preferably, the cover is provided with a liquid inlet, and the medium introduced by the liquid inlet can cooperate with the flow-limiting disk and the arc-shaped flow guide block, and the volute is provided with a liquid outlet.

[0008] Preferably, the impeller and the volute are both integrally cast.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model, by installing a flow-limiting disc and an impeller, uses the guiding effect of the flow-limiting disc to ensure that the medium diffuses only through the channel formed outside the arc-shaped guide block. The setting of double sets of arc-shaped guide blocks further widens the channel space, enabling the pump to easily handle mixed media containing large particles or high concentrations of solids. This avoids the disorderly flow and blockage risk of the medium inside the impeller. The integrated cast impeller reduces the risk of component breakage or wear, and improves the service life of the pump. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the volute structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the current-limiting disk structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the cover structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the impeller structure of this utility model.

[0016] In the diagram: 1. Pump body; 2. Volute; 3. Cover; 4. Impeller; 5. Outlet; 6. Inlet; 7. Flow limiting disc; 8. Mounting disc; 9. Arc-shaped guide block. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-5A solid-liquid mixture transfer pump includes a pump body 1, a volute 2 mounted on the pump body 1, an impeller 4 for transferring the solid-liquid mixture at the output end of the pump body 1, and the impeller 4 located inside the cavity of the volute 2. The impeller 4 includes a mounting disc 8 and two sets of arc-shaped guide blocks 9 that are fitted onto the mounting disc 8. A cover 3 is detachably mounted on the volute 2. A flow-limiting disc 7 that can cooperate with the arc-shaped guide blocks 9 is mounted on one side of the cover 3. An inlet 6 is provided on the cover 3, and the medium introduced through the inlet 6 can cooperate with the flow-limiting disc 7 and the arc-shaped guide blocks 9. An outlet 5 is provided on the volute 2. The pump body 1 is the main structural component of the entire transfer pump, supporting all components such as the volute 2, impeller 4, and cover 3, ensuring the smooth operation of the pump. The components are installed accurately and stably. The internal cavity of the volute 2 cooperates with the impeller 4 to form a spiral flow channel. When the impeller 4 rotates, the volute 2 collects the solid-liquid mixture thrown out by the impeller 4. Through the design of the gradually expanding flow channel cross-section, the fluid kinetic energy is converted into pressure energy, increasing the pressure of the conveyed medium. The outlet 5 is set at the end of the volute 2 to guide the pressurized medium to be output stably. At the same time, the structural strength of the volute 2 can withstand the fluid pressure during the conveying process. The impeller 4 generates centrifugal force by rotating, driving the solid-liquid mixture to flow from the inlet 6 to the outlet 5. It is the key power component for realizing the medium conveying. The mounting disk 8 is the central support structure of the impeller 4, connecting the drive shaft, transmitting rotational power, and evenly distributing two sets of arc-shaped guides. Block 9, the arc-shaped guide block 9, rotates with the mounting disc 8, pushing the solid-liquid mixture towards the edge of the volute 2 through its curved surface. The arc design reduces fluid resistance and the impact and wear of solid particles on the guide block, while improving the fluid's guiding efficiency and stability. The cover 3 is detachably installed on the volute 2, forming a closed fluid chamber to prevent media leakage. The inlet 6 is located on one side of the cover 3, guiding the solid-liquid mixture into the mating area between the volute 2 and the impeller 4. Its position, relative to the flow-limiting disc 7 and the arc-shaped guide block 9, determines the inflow direction and velocity distribution of the medium. The flow-limiting disc 7 and the arc-shaped guide block 9 work together to allow the medium to better enter the two sets of arc-shaped guide blocks 9 for transport. The inlet 6 connects to an external pipe. The impeller 4 introduces the solid-liquid mixture to be transported, and through the positional design of the cover 3, the medium can accurately flow to the mating area of ​​the flow-limiting disc 7 and the arc-shaped guide block 9, ensuring that the impeller 4 can effectively grab the medium when rotating. The outlet 5 connects to the conveying pipeline to export the pressurized solid-liquid mixture inside the volute 2. Its position is aligned with the end of the spiral flow channel of the volute 2, ensuring that the medium is output with stable pressure and flow rate. Through the guiding effect of the flow-limiting disc 7, the medium diffuses only through the channel formed outside the arc-shaped guide block 9. The setting of double sets of arc-shaped guide blocks 9 further widens the channel space, enabling the pump to easily handle mixed media containing large particles or high concentrations of solids, avoiding the disorderly flow and blockage risk of the medium inside the impeller 4.

[0021] Please see Figure 2Both the impeller 4 and the volute 2 are integrally cast, which improves the overall sealing performance, avoids media leakage or particle jamming, reduces processing steps, improves component precision, ensures the fitting precision of the flow channels of the impeller 4 and the volute 2, enhances structural strength, and is especially suitable for conveying media containing abrasive particles, reducing the risk of component breakage or wear, and is wear-resistant and corrosion-resistant.

[0022] Working principle: After the pump starts, the motor drives the impeller 4 inside the pump body 1 to rotate at high speed. The solid-liquid mixture flows in from the inlet 6 on the cover 3, and is initially guided by the flow-limiting disc 7, which guides the medium into the impeller 4 area at a specific angle and velocity. The medium can only diffuse outward through the channel formed outside the arc-shaped guide block 9. As the impeller 4 rotates, the mounting disc 8 drives the arc-shaped guide block 9 to rotate. Under centrifugal force, the solid-liquid mixture is thrown along the curved surface of the arc-shaped guide block 9 towards the edge of the volute 2 cavity. After reaching the volute 2, the medium is... As the cross-sectional area of ​​the flow channel in the volute 2 gradually increases, the medium velocity decreases. According to the principle of energy conversion, kinetic energy is converted into pressure energy and finally discharged from the outlet 5 on the volute 2, completing the solid-liquid mixed medium transportation process. Through the guiding effect of the flow-limiting disc 7, the medium diffuses only through the channel formed outside the arc-shaped guide block 9. The setting of the double set of arc-shaped guide blocks 9 further widens the channel space, enabling the pump to easily handle mixed media containing large particles or high concentrations of solids, avoiding the disorderly flow and blockage risk of the medium inside the impeller 4.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A solid-liquid mixed medium transport pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with a volute (2), and the output end of the pump body (1) is provided with an impeller (4) for conveying a solid-liquid mixture. The impeller (4) is located inside the cavity of the volute (2). The impeller (4) includes a mounting disc (8) and two sets of arc-shaped guide blocks (9) that are fitted on the mounting disc (8). The volute (2) is detachably provided with a cover (3), and a flow-limiting disc (7) that can cooperate with the arc-shaped guide blocks (9) is provided on one side of the cover (3).

2. The solid-liquid mixed medium conveying pump according to claim 1, characterized in that: The cover (3) is provided with a liquid inlet (6), and the medium introduced by the liquid inlet (6) can cooperate with the flow limiting disk (7) and the arc-shaped flow guide block (9). The volute (2) is provided with a liquid outlet (5).

3. A solid-liquid mixed medium conveying pump according to claim 1, characterized in that: The impeller (4) and the volute (2) are both integrally cast.

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