Pump inlet short pipe with rotation stopping blades

Abstract

The utility model relates to the field of pump inlet short pipes, in particular to a pump inlet short pipe with rotation stopping blades. According to the technical scheme, a pipe body is arranged at the lower end of a flange connected with a pipeline, a flange connected with a pump is arranged at the lower end of the pipe body, a rotation stopping blade body is arranged in the pipe body, an upper-end arc-shaped inner cover is arranged at the upper end of the pipe body, and an inserting strip is arranged at the lower end of the upper-end arc-shaped inner cover; an upper end spring damper is arranged at the upper end of the upper end arc-shaped inner cover, an upper end arc-shaped outer cover is arranged at the upper end of the upper end spring damper, a lower end arc-shaped inner cover is arranged at the lower end of the inserting strip, grooves are formed in the two sides of the lower end arc-shaped inner cover, and a lower end spring damper is arranged at the lower end of the lower end arc-shaped inner cover. And a lower end arc-shaped outer cover is arranged at the lower end part of the lower end spring damper. According to the utility model, the rotation resistance blade bodies are arranged, so that the rotation force of slurry in the inlet short pipe can be effectively reduced, the abrasion of the slurry to the short pipe is reduced, and the service life of the short pipe is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pump inlet short pipes, and in particular to a pump inlet short pipe with a swirl-blocking blade. Background Technology

[0002] Slurry pumps are widely used in projects such as coal washing, metallurgy, power plant desulfurization, and steel mills. Due to the special operating conditions, the slurry being transported is a suspension containing particles, resulting in severe wear on the pump's flow parts. When the impeller rotates, it drives the slurry to rotate, which in turn causes the slurry entering the pump inlet pipe to rotate as well, leading to significant wear on the inlet pipe. Therefore, extending the service life of the pump inlet pipe is a crucial consideration. Previously, increasing the service life of the inlet pipe involved changing the material to improve wear resistance, while maintaining the same shape as a regular inlet pipe, significantly increasing costs. Now, simply adding anti-rotation blades can extend the service life of the pump inlet pipe and reduce production costs.

[0003] When transporting slurry, the existing pump inlet pipe causes significant wear and tear on the slurry, which is a suspension containing particles. This wear is caused by the rotation of the impeller, which in turn causes the slurry entering the pump inlet pipe to rotate. This results in a shortened service life and high maintenance and replacement costs. Furthermore, the pipe is not protected during use, making it susceptible to damage from impacts by heavy objects.

[0004] Therefore, in view of the fact that the existing pump inlet short pipe suffers from severe wear, short service life, and high maintenance costs during use, a pump inlet short pipe with swirl-blocking blades can be designed to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing pumps where the impeller rotates during slurry transport (since the slurry is a suspension containing particles), causing the slurry to rotate as well, resulting in severe wear on the inlet pipe, shortened service life, and high maintenance and replacement costs, and where the pipe lacks external protection during use, heavy objects impacting the pipe can cause damage.

[0006] The technical solution of this utility model is as follows: a pump inlet short pipe with swirl-blocking blades, comprising a flange connected to a pipeline, a flange connected to a pump, a pipe body, swirl-blocking blades, an upper arc-shaped inner cover, a strip, an upper spring damper, an upper arc-shaped outer cover, a lower arc-shaped inner cover, a groove, a lower spring damper, and a lower arc-shaped outer cover. The lower end of the flange connected to the pipeline is provided with the pipe body, and the lower end of the pipe body is provided with the flange connected to the pump. The swirl-blocking blades are provided inside the pipe body. The upper end of the pipe body is provided with an upper arc-shaped inner cover, and the lower end of the upper arc-shaped inner cover is provided with a strip. The upper end of the upper arc-shaped inner cover is provided with an upper spring damper, and the upper end of the upper spring damper is provided with an upper arc-shaped outer cover. The lower end of the strip... The pump body is equipped with a lower arc-shaped inner cover, with grooves on both sides. A lower spring damper is installed at the lower end of the lower arc-shaped inner cover, and a lower arc-shaped outer cover is installed at the lower end of the lower spring damper. The flanges connected to the pipeline, the flanges connected to the pump, the pipe body, and the swirl-blocking blades are integrated into a single unit to facilitate flow. The swirl-blocking blades reduce the rotational force of the slurry when it enters the pump body, thereby reducing pump vibration and noise. The use of the swirl-blocking blades also reduces wear on the short pipe caused by the slurry and increases the service life of the inlet short pipe. The upper arc-shaped inner cover, insert, upper spring damper, upper arc-shaped outer cover, lower arc-shaped inner cover, grooves, lower spring damper, and lower arc-shaped outer cover provide external vibration damping protection.

[0007] Preferably, slurry is transported by setting up a short pipe at the pump inlet, and external protection is provided to protect the pipeline.

[0008] Preferably, the swirl-blocking blades are evenly distributed on the inner side of the tube wall.

[0009] As a preferred option, the size of the swirl-blocking blades can be designed according to the size of the inlet short tube, and the thickness can be the same as or different from the thickness of the short tube.

[0010] As a preferred option, depending on the size of the inlet short pipe and the operating conditions, a different number of swirl-blocking blades can be designed, with the number set to a natural number.

[0011] Preferably, depending on the size of the inlet short pipe and the operating conditions, the shape of the swirl-blocking blade body can be a straight blade or a twisted blade.

[0012] Preferably, the upper arc-shaped inner cover, insert, upper spring damper, and upper arc-shaped outer cover are configured as a whole and are located at the upper end of the tube body, while the lower arc-shaped inner cover, groove, lower spring damper, and lower arc-shaped outer cover are configured as another whole and are located at the lower end of the tube body. The two sets are arranged symmetrically from top to bottom.

[0013] Preferably, the two integral parts are connected by inserts and grooves in a wedge-shaped slot.

[0014] The beneficial effects of this utility model are:

[0015] 1. By installing a short inlet pipe for the pump, a swirl-blocking blade is added inside the existing ordinary short pipe. The swirl-blocking blade is streamlined in the direction of liquid flow, and its thickness is the same as that of the short pipe. During casting, the swirl-blocking blade and the short pipe are cast as a whole and evenly distributed on the inner wall of the short pipe. This effectively reduces the rotational force of the slurry in the inlet short pipe, reduces the wear of the short pipe by the slurry, and increases the service life of the short pipe. Inserts and grooves are installed on the outside to achieve quick assembly and disassembly. The upper arc-shaped inner cover, upper spring damper, and upper arc-shaped outer cover provide upper anti-collision protection, and the lower arc-shaped inner cover, lower spring damper, and lower arc-shaped outer cover provide lower anti-collision protection. It overcomes the shortcomings of existing pumps where the impeller rotates during slurry transport because the slurry is a suspension containing particles, and the slurry entering the pump inlet pipe rotates as well, causing severe wear on the inlet pipe, resulting in a shortened service life and high maintenance and replacement costs. In addition, the short pipe is not protected externally during use, and heavy objects hitting the pipe can cause damage.

[0016] 2. By setting flanges for connecting the pipe body to the pipeline and flanges for connecting to the pump, the flow is facilitated. The anti-rotation blades reduce the wear of the slurry on the pump inlet short pipe, improving the service life of the inlet short pipe while ensuring performance. The addition of anti-rotation blades to the inner cavity of the inlet short pipe reduces the rotational force of the slurry when entering the pump body, thereby reducing the rotational scouring and wear of the inlet short pipe by the slurry, increasing the service life of the inlet short pipe, and reducing pump vibration and noise. At the same time, upper and lower arc-shaped inner covers are set on the outside of the pipe body for protection. Quick disassembly and assembly are achieved through inserts and grooves. Upper and lower spring dampers provide buffering and shock absorption. Upper and lower arc-shaped outer covers provide the outermost anti-collision protection. This completes the design of the pump inlet short pipe with anti-rotation blades. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the pump inlet short pipe with swirl-blocking blades according to this utility model.

[0018] Figure 2 The diagram shown is a schematic of the swirl-blocking blade of the pump inlet short pipe of this utility model.

[0019] Figure 3 The diagram shown is a schematic of the pump inlet short pipe body with swirl-blocking blades according to this utility model.

[0020] Figure 4 The diagram shown is a schematic of the pump inlet short pipe insert with swirl-blocking blades according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Flange connected to the pipeline; 2. Flange connected to the pump; 3. Pipe body; 4. Rotary blade body; 5. Upper arc-shaped inner cover; 6. Insert; 7. Upper spring damper; 8. Upper arc-shaped outer cover; 9. Lower arc-shaped inner cover; 10. Groove; 11. Lower spring damper; 12. Lower arc-shaped outer cover. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment: a pump inlet short pipe with swirl-blocking blades, including a flange 1 connected to a pipeline, a flange 2 connected to a pump, a pipe body 3, swirl-blocking blades 4, an upper arc-shaped inner cover 5, a strip 6, an upper spring damper 7, an upper arc-shaped outer cover 8, a lower arc-shaped inner cover 9, a groove 10, a lower spring damper 11, and a lower arc-shaped outer cover 12. The lower end of the flange 1 connected to the pipeline is provided with the pipe body 3, and the lower end of the pipe body 3 is provided with the flange 2 connected to the pump. The swirl-blocking blades 4 are provided inside the pipe body 3. The upper end of the pipe body 3 is provided with an upper arc-shaped inner cover 5, the lower end of the upper arc-shaped inner cover 5 is provided with a strip 6, the upper end of the upper arc-shaped inner cover 5 is provided with an upper spring damper 7, and the upper end of the upper spring damper 7 is provided with an upper arc-shaped outer cover 8. The strip 6... The lower end is provided with a lower arc-shaped inner cover 9, and grooves 10 are provided on both sides of the lower arc-shaped inner cover 9. The lower end of the lower arc-shaped inner cover 9 is provided with a lower spring damper 11, and the lower end of the lower spring damper 11 is provided with a lower arc-shaped outer cover 12. The flange 1 connected to the pipeline, the flange 2 connected to the pump, the pipe body 3 and the swirl-blocking blade body 4 are set as a whole to achieve passage. The swirl-blocking blade can reduce the rotation force when the slurry enters the pump body, reduce the pump vibration and noise. The use of the swirl-blocking blade can reduce the wear of the short pipe by the slurry. The swirl-blocking blade can increase the service life of the inlet short pipe. The upper arc-shaped inner cover 5, the insert 6, the upper spring damper 7, the upper arc-shaped outer cover 8, the lower arc-shaped inner cover 9, the groove 10, the lower spring damper 11 and the lower arc-shaped outer cover 12 realize the external shock absorption protection. Pipe body 3 connects to flange 1 (for pipeline connection) and flange 2 (for pump connection) for flow operation. Rotary blades 4 reduce wear on the pump inlet short pipe caused by the slurry, improving its service life while ensuring performance. The addition of rotary blades 4 to the inner cavity of the inlet short pipe reduces the rotational force of the slurry entering the pump body, thus reducing slurry scouring and wear on the inlet short pipe, increasing its service life, and reducing pump vibration and noise. The rotary blades 4 are evenly distributed on the inner wall of the pipe. Different sizes of rotary blades 4 can be designed according to the size of the inlet short pipe, with thicknesses matching or differing from the pipe thickness. The number of rotary blades 4 can vary depending on the size of the inlet short pipe and operating conditions, and the number is set to a natural number. The shape of the rotary blades 4 can be straight or twisted, depending on the size of the inlet short pipe and operating conditions. The upper arc-shaped inner cover 5, insert 6, upper spring damper 7, and upper arc-shaped outer cover 8 are configured as a single unit and are located at the upper end of the pipe body 3. The lower arc-shaped inner cover 9, groove 10, lower spring damper 11, and lower arc-shaped outer cover 12 are configured as another single unit and are located at the lower end of the pipe body 3. The two sets are arranged symmetrically. The two units are connected by a wedge-shaped groove through the insert 6 and groove 10. The flange 1, which connects to the pipeline, has evenly distributed bolt holes on the outside and a 2-3mm thick sealing surface. The flange thickness is determined according to the design pressure.The flange 2, connected to the pump, has evenly distributed bolt holes on its outer side and a 2-3mm thick sealing surface; the flange thickness depends on the design pressure. The pipe body 3 connects to two flanges and is cast integrally with them; its thickness also depends on the design pressure. The swirl-blocking blade 4 is streamlined in the flow direction, with a length slightly shorter than the short pipe length and a thickness consistent with the short pipe wall thickness. It is cast integrally with the short pipe and evenly distributed on the inner wall of the short pipe. The swirl-blocking blade reduces wear on the pump inlet short pipe from the slurry, improving its service life while ensuring performance. An upper arc-shaped inner cover 5 and a lower arc-shaped inner cover 9 are installed on the outside of the pipe body 3 for protection. These are quickly connected and disassembled via inserts 6 and grooves 10. Upper and lower spring dampers 7 and 11 provide buffering and shock absorption, while upper and lower arc-shaped outer covers 8 and 12 provide outermost anti-collision protection.

[0024] During operation, the pipe body 3 connects to the flange 1 (connected to the pipeline) and the flange 2 (connected to the pump) for flow. The slurry-blocking blade 4 reduces the wear of the slurry on the pump inlet pipe, improving its service life while ensuring performance. The addition of the slurry-blocking blade 4 to the inner cavity of the inlet pipe reduces the rotational force of the slurry when entering the pump body, thereby reducing the slurry's rotational scouring and wear on the inlet pipe, increasing its service life, and reducing pump vibration and noise. At the same time, the pipe body 3 is protected by an upper arc-shaped inner cover 5 and a lower arc-shaped inner cover 9, which are quickly connected and disassembled via a strip 6 and a groove 10. The upper spring damper 7 and the lower spring damper 11 provide buffering and shock absorption, while the upper arc-shaped outer cover 8 and the lower arc-shaped outer cover 12 provide the outermost anti-collision protection. All these functions are completed.

[0025] Through the above steps, by setting a pump inlet short pipe, a swirl-blocking blade 4 is added inside the original ordinary short pipe. The swirl-blocking blade 4 is streamlined in the liquid flow direction, and its thickness is the same as that of the short pipe. During casting, the swirl-blocking blade 4 and the short pipe are cast as a whole and are evenly distributed on the inner wall of the short pipe. This can effectively reduce the rotation force of the slurry in the inlet short pipe, reduce the wear of the slurry on the short pipe, and increase the service life of the short pipe. Inserts 6 and grooves 10 are set on the outside to achieve quick disassembly and assembly. The upper arc-shaped inner cover 5, the upper spring damper 7, and the upper arc-shaped outer cover 8 provide upper anti-collision protection, and the lower arc-shaped inner cover 9, the lower spring damper 11, and the lower arc-shaped outer cover 12 provide lower anti-collision protection. This invention overcomes the shortcomings of existing pumps where the impeller rotates during slurry transport because the slurry is a suspension containing particles. This rotation causes the slurry to rotate, which in turn causes the slurry entering the pump inlet pipe to rotate as well. This results in severe wear on the inlet pipe, shortening its service life and increasing maintenance and replacement costs. Additionally, the lack of external protection for the pipe during use makes it susceptible to damage from impacts by heavy objects.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pump inlet short pipe with swirl-blocking blades, comprising a flange (1) for connection to a pipeline, characterized in that: It also includes a flange (2) connected to the pump, a pipe body (3), a swirl-blocking blade body (4), an upper arc-shaped inner cover (5), a strip (6), an upper spring damper (7), an upper arc-shaped outer cover (8), a lower arc-shaped inner cover (9), a groove (10), a lower spring damper (11), and a lower arc-shaped outer cover (12). The lower end of the flange (1) connected to the pipeline is provided with a pipe body (3), and the lower end of the pipe body (3) is provided with a flange (2) connected to the pump. The inside of the pipe body (3) is provided with a swirl-blocking blade body (4). The upper end of the pipe body (3) is provided with an upper arc-shaped inner cover (5), and the lower end of the upper arc-shaped inner cover (5) is provided with a strip (6). The upper end of the upper arc-shaped inner cover (5) is provided with an upper spring damper (7), and the upper end of the upper spring damper (7) is provided with an upper arc-shaped outer cover (8). The lower end of the strip (6) is provided with a lower arc-shaped inner cover. The cover (9) has grooves (10) on both sides of the lower arc-shaped inner cover (9). The lower end of the lower arc-shaped inner cover (9) is provided with a lower end spring damper (11). The lower end of the lower end spring damper (11) is provided with a lower end arc-shaped outer cover (12). The flange (1) connected to the pipeline, the flange (2) connected to the pump, the pipe body (3) and the swirl-blocking blade body (4) are set as a whole to achieve passage. The swirl-blocking blade can reduce the rotation force when the slurry enters the pump body, reduce the pump vibration and noise. The use of the swirl-blocking blade can reduce the wear of the slurry on the short pipe. The swirl-blocking blade can increase the service life of the inlet short pipe. The upper arc-shaped inner cover (5), the insert (6), the upper spring damper (7), the upper arc-shaped outer cover (8), the lower arc-shaped inner cover (9), the groove (10), the lower spring damper (11) and the lower arc-shaped outer cover (12) realize the external shock absorption protection work.

2. The pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: The swirl-blocking blades (4) are evenly distributed on the inner side of the tube wall.

3. The pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: Depending on the size of the inlet short tube, different sizes of swirl-blocking blades (4) can be designed, with the thickness being the same as or different from the thickness of the short tube.

4. The pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: Depending on the size of the inlet short pipe and the operating conditions, a different number of swirl-blocking blades (4) can be designed, and the number can be set to a natural number.

5. A pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: Depending on the size of the inlet short pipe and the operating conditions, the shape of the swirl-blocking blade body (4) can be a straight blade or a twisted blade.

6. The pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: The upper arc-shaped inner cover (5), insert (6), upper spring damper (7) and upper arc-shaped outer cover (8) are set as a whole and are located at the upper end of the tube body (3). The lower arc-shaped inner cover (9), groove (10), lower spring damper (11) and lower arc-shaped outer cover (12) are set as another whole and are located at the lower end of the tube body (3). The two sets are arranged symmetrically from top to bottom.

7. A pump inlet short pipe with swirl-blocking blades according to claim 1, characterized in that: The two components are connected by a wedge-shaped slot via a strip (6) and a groove (10).

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