Inlet structure for vertical coal slurry pump

Abstract

The application discloses an inlet structure of a vertical coal slurry pump and relates to the technical field of coal slurry pumps. The inlet structure comprises a pump body, an inlet elbow, an inlet short pipe, an inlet pipe and a pump base. The pump body is installed on the pump base. A vertical passage is arranged in the pump body. One end of the inlet elbow is fixed to the pump body and is communicated with the passage. The other end of the inlet elbow is communicated with the inlet short pipe. The inlet short pipe is located between the inlet elbow and the inlet pipe and connects the inlet elbow and the inlet pipe. The inlet short pipe is detachably connected with the inlet pipe and the inlet elbow. The inlet elbow, the inlet short pipe and the inlet pipe are detachably arranged and assembled into an inlet pipeline. When the inlet pipeline needs to be disassembled, the inlet pipe is only needed to be dismounted, so that the disassembly requirement is met, and the disassembly is simple and efficient.

Description

Technical Field

[0001] This application relates to the technical field of coal slurry pumps, and in particular to an import structure for a vertical coal slurry pump. Background Technology

[0002] Coal-water slurry is a low-pollution, high-efficiency, pipeline-transportable coal-based fluid fuel derived from approximately 65% ​​coal, 34% water, and 1% additives through physical processing. It revolutionizes traditional coal combustion, demonstrating significant environmental and energy-saving advantages. Especially in recent years, the adoption of waste-to-resource technologies has led to the development of environmentally friendly coal-water slurry, which can greatly improve its environmental benefits without increasing costs. With my country's abundant coal resources, coal-water slurry has become the most basic and economical clean energy source to replace oil and gas.

[0003] In related technologies, after the coal-water slurry tanker transports the coal-water slurry to the designated location, the coal-water slurry is quickly unloaded by a vertical coal slurry pump. One end of the inlet pipe of the coal slurry pump is connected to the discharge port of the coal-water slurry tanker, and the other end of the inlet pipe of the coal slurry pump is connected to the customer interface. The inlet pipe of the coal slurry pump often needs to be disassembled, but the inlet pipe of the existing vertical coal slurry pump is an L-shaped pipe, which is complicated to install on the coal slurry pump and inconvenient to disassemble. Utility Model Content

[0004] To address the issue of inconvenient disassembly and maintenance of inlet pipes, this application provides an inlet structure for a vertical coal slurry pump.

[0005] This application provides an inlet structure for a vertical coal slurry pump, which adopts the following technical solution:

[0006] An inlet structure for a vertical coal slurry pump includes a pump body, an inlet pipe, and a pump base. The pump body is mounted on the pump base and has a vertical channel within it. The inlet pipe includes an inlet bend, an inlet short pipe, and an inlet pipe. One end of the inlet bend is fixed to the pump body and connected to the channel, while the other end of the inlet bend is connected to the inlet short pipe. The inlet short pipe is located between the inlet bend and the inlet pipe and connects them. The inlet short pipe can be detachably connected to both the inlet pipe and the inlet bend.

[0007] By adopting the above technical solution, the inlet pipeline uses a segmented structure consisting of an inlet bend, an inlet short pipe, and an inlet pipe combination. The inlet short pipe can be detachably connected to both the inlet pipe and the inlet bend. When the inlet pipeline needs to be disassembled, only the inlet pipe needs to be removed, making disassembly simple and efficient. When a pipeline is damaged, the inlet pipe, inlet short pipe, and inlet bend can be removed sequentially for troubleshooting, making maintenance convenient. Because the inlet pipe and inlet short pipe are detachably connected, different sizes of inlet pipes can be replaced according to actual needs without replacing the entire inlet pipeline. This eliminates the need to produce the entire inlet pipeline; only inlet pipes of different sizes need to be produced, thus saving production costs.

[0008] Preferably, the pump base is provided with a support column, which is fixed to the bottom of the pump base and abuts against the inlet short pipe to provide support for the inlet short pipe.

[0009] By adopting the above technical solution, the pump base is equipped with a support column, and the support column abuts against the inlet short pipe. In this way, the support column can provide direct support for the inlet short pipe. Through the support of the support column, the torque that the pipe opening can withstand is increased, the stress on the inlet pipe during operation is reduced, and stress concentration caused by stress on the inlet pipe can be prevented from causing the pipe to break.

[0010] Preferably, the end of the inlet short pipe away from the inlet bend is provided with an annular mounting part, and the end of the inlet pipe near the inlet short pipe is also provided with an annular mounting part. The inlet short pipe and the inlet pipe are fixed to each other by multiple fastening bolts passing through the two mounting parts. The fastening bolts located on the side of the inlet short pipe near the pump body pass through the two mounting parts and enter the pump body to fix the inlet short pipe and the inlet pipe to the pump body. The fastening bolts located on the side of the inlet short pipe near the support column pass through the two mounting parts and enter the support column to fix the inlet short pipe and the inlet pipe to the pump body.

[0011] By adopting the above technical solution, the fastening bolts located on the side of the inlet short pipe near the pump body pass through both mounting parts and into the pump body, and the fastening bolts located on the side of the inlet short pipe near the support column pass through both mounting parts and into the support column. In this way, the inlet short pipe and the inlet pipe are fixed to the pump body and the support column at the same time, which further improves the overall stability of the inlet pipeline and enables it to operate more reliably during operation.

[0012] Preferably, a protrusion is provided at one end of the inlet short pipe near the inlet bend. The protrusion is arranged in a ring around the opening of the inlet short pipe. The protrusion cooperates with the end of the inlet bend near the inlet short pipe to lock and fix the inlet bend and the inlet short pipe together.

[0013] By adopting the above technical solution, a circular protrusion is provided at the end of the inlet short pipe near the inlet bend, which engages with the end of the inlet bend near the inlet short pipe to achieve a snap-fit ​​fixation. This snap-fit ​​fixing method is convenient and quick to install, enabling rapid connection between the inlet bend and the inlet short pipe, and ensuring a firm connection between the two.

[0014] Preferably, a sealing ring is embedded at the connection between the protrusion and the inlet bend.

[0015] By adopting the above technical solution, the sealing ring can effectively fill the gaps at the connection, improve the sealing performance of the connection, prevent the medium from leaking from the connection during transportation, and improve the overall sealing performance of the inlet pipeline.

[0016] Preferably, the channel is further provided with a tongue for blocking the rotation of the medium inside the channel, and the side of the tongue that contacts the medium is arc-shaped.

[0017] By adopting the above technical solutions, the presence of the tongue can prevent the medium from rotating in the channel, allowing the medium to flow more smoothly, reducing wear on the pump body caused by the rotation of the medium, and improving the service life of the pump body; the arc-shaped design can reduce the local stress on the surface of the tongue, reduce the wear caused by the medium on the tongue, and improve the service life of the tongue.

[0018] Preferably, a flow divider is provided at one end of the inlet bend near the channel, and the flow divider has multiple flow divider holes for allowing the medium to flow, and the flow divider extends from the inlet bend into the channel.

[0019] By adopting the above technical solution, the function of the diverter plate is to evenly distribute the medium to each diverter hole, so that the medium can enter the channel more evenly, preventing the medium from flowing in a concentrated or uneven manner at the inlet, thereby improving the working efficiency of the coal slurry pump and the stability of the medium delivery.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The imported pipeline adopts a segmented, detachable structure consisting of imported elbows, imported short pipes, and imported pipes. Each component can be installed or disassembled independently. When a component is damaged or requires maintenance, it is not necessary to disassemble the entire pipeline system, reducing the difficulty of installation and maintenance. The imported pipes and imported short pipes are detachably connected, and different sizes of imported pipes can be replaced as needed without replacing the entire imported pipeline. This reduces the overall production requirements of the pipeline, requiring only the production of imported pipes of different specifications, effectively saving production costs.

[0022] 2. A support column is installed at the bottom of the pump base and abuts against the inlet short pipe to provide direct support for the inlet short pipe, reduce the stress on the pipeline during operation, prevent pipeline breakage due to stress concentration, and improve the stability of the pipeline structure; the inlet short pipe is connected to the inlet pipe through a ring-shaped mounting part and fastening bolts, and some bolts are inserted into the pump body and support column for fixation, fixing the pipeline to the pump body and support column at the same time, further enhancing the overall stability of the inlet pipeline;

[0023] 3. The inlet short pipe and the inlet elbow are connected by an annular protrusion and the gap is filled with a sealing ring to improve the connection sealing performance; a tongue is set in the channel to block the rotation of the medium, so that the medium flows smoothly, reduces the wear of the pump body caused by the rotation of the medium, and extends the service life of the pump body; the flow divider plate at the inlet elbow extends into the channel and distributes the medium evenly through the flow divider hole, preventing the medium from concentrating or flowing unevenly at the inlet, and improving the working efficiency of the coal slurry pump and the stability of the medium delivery. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0025] Figure 2 This is a schematic diagram showing the tongue alone in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram showing the splitter plate separately in the embodiments of this application.

[0027] Reference numerals: 1. Pump body; 101. Channel; 2. Inlet pipe; 21. Inlet bend; 22. Inlet short pipe; 23. Inlet pipe; 3. Pump base; 4. Tongue; 5. Diverter plate; 51. Diverter hole; 6. Protrusion; 7. Support column; 8. Mounting part; 9. Fastening bolt. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0029] This application discloses an inlet structure for a vertical coal slurry pump.

[0030] refer to Figure 1 and Figure 2An inlet structure for a vertical coal slurry pump includes a pump body 1, an inlet pipe 2, and a pump base 3. The pump body 1 is fixed to the pump base 3 by bolts. A vertical channel 101 is provided inside the pump body 1. A tongue 4 is provided inside the channel 101 to prevent the rotation of the medium within the channel 101. The tongue 4 is integrally formed with the pump body 1, and the side of the tongue 4 in contact with the medium is arc-shaped. The function of the tongue 4 is to disrupt the rotational flow of the medium within the channel 101, allowing the medium to flow more smoothly, reducing energy loss and wear on the inner wall of the channel 101. The inlet pipe 2 is installed on the pump base 3 and connected to the channel 101.

[0031] The inlet pipe 2 includes an inlet bend 21, an inlet short pipe 22, and an inlet pipe 23. One end of the inlet bend 21 is fixed to the pump body 1 and connected to the channel 101, while the other end of the inlet bend 21 is connected to the inlet short pipe 22. The inlet short pipe 22 is located between the inlet bend 21 and the inlet pipe 23 and connects the inlet bend 21 and the inlet pipe 23. The inlet short pipe 22 can be detachably connected to both the inlet pipe 23 and the inlet bend 21.

[0032] refer to Figure 1 and Figure 3 The inlet bend 21 is an L-shaped pipe. One end of the inlet bend 21 is fixed to the pump body 1 via a flange connection. A flow divider 5 is provided at the end of the inlet bend 21 near the channel 101. The flow divider 5 extends from the inlet bend 21 into the channel 101 and has multiple flow divider holes 51 for media flow. In this embodiment, there are three flow divider holes 51, which are evenly distributed on the flow divider 5. The flow divider 5 divides the media entering the inlet bend 21, allowing the media to enter the channel 101 more evenly, preventing the media from concentrating and impacting a certain part of the channel 101, thereby reducing the wear of the channel 101.

[0033] The other end of the inlet bend 21 is snapped into and connected to the inlet short pipe 22, facilitating disassembly and replacement. A protrusion 6 is integrally formed on the end of the inlet short pipe 22 near the inlet bend 21, forming a ring around the opening of the inlet short pipe 22. A groove is provided at the end of the inlet bend 21 near the inlet short pipe 22 to engage with the protrusion 6. The engagement of the protrusion 6 and the groove secures the inlet bend 21 and the inlet short pipe 22. A sealing ring is embedded at the connection between the protrusion 6 and the inlet bend 21; when the inlet bend 21 and the inlet short pipe 22 are snapped together, the sealing ring is compressed, creating a sealed space between them to prevent media leakage.

[0034] refer to Figure 1The pump base 3 is provided with a support column 7, which is welded and fixed to the bottom of the pump base 3. The support column 7 abuts against the inlet short pipe 22 to provide support for the inlet short pipe 22. Through the support of the support column 7, the torque that the pipe opening can withstand is increased, the stress on the inlet pipe 2 during operation is reduced, and the stress concentration caused by the inlet pipe 2 is prevented from causing the pipe to break.

[0035] The inlet pipe 23 is a cylindrical pipe. An annular mounting portion 8 is integrally formed at the end of the inlet short pipe 22 furthest from the inlet bend 21. An annular mounting portion 8 is also integrally formed at the end of the inlet pipe 23 closest to the inlet short pipe 22. The inlet short pipe 22 and the inlet pipe 23 are fixed together by multiple fastening bolts 9 passing through the two mounting portions 8. These bolts 9 are evenly distributed around the circumference of the mounting portions 8 to ensure a secure connection. The fastening bolts 9 located on the side of the inlet short pipe 22 closest to the pump body 1 pass through the two mounting portions 8 and into the pump body 1, fixing the inlet short pipe 22 and the inlet pipe 23 to the pump body 1. Similarly, the fastening bolts 9 located on the side of the inlet short pipe 22 closest to the support column 7 pass through the two mounting portions 8 and into the support column 7, fixing the inlet short pipe 22 and the inlet pipe 23 to the pump body 1. This fixing method makes the inlet short pipe 22 and the inlet pipe 23 form a single unit with the pump body 1 and the support column 7, further improving the stability of the inlet pipe 2.

[0036] The implementation principle of this embodiment is as follows: The inlet pipe 2 adopts a segmented structure consisting of an inlet bend 21, an inlet short pipe 22, and an inlet pipe 23. The inlet short pipe 22 is detachably connected to both the inlet pipe 23 and the inlet bend 21. When a pipe is damaged or requires maintenance, there is no need to operate the entire inlet pipe 2, reducing the difficulty of installation and maintenance. Since the inlet pipe 23 and the inlet short pipe 22 are detachably connected, different sizes of inlet pipe 23 can be replaced according to actual needs, without replacing the entire inlet pipe 2. There is no need to produce the entire inlet pipe 2; only different sizes of inlet pipe 23 need to be produced, thus saving production costs. The inlet short pipe 22 is supported by the support column 7, increasing the torque that the inlet pipe 2 can withstand as a whole and increasing the torque that the pipe opening can withstand. This reduces the stress on the inlet pipe 2 during operation and prevents stress concentration that could lead to pipe breakage.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An inlet structure for a vertical coal slurry pump, comprising a pump body (1), an inlet pipe (2), and a pump base (3), wherein the pump body (1) is mounted on the pump base (3), and the pump body (1) has a vertical channel (101) inside, characterized in that, The inlet pipe (2) includes an inlet bend (21), an inlet short pipe (22), and an inlet pipe (23). One end of the inlet bend (21) is fixed to the pump body (1) and connected to the channel (101). The other end of the inlet bend (21) is connected to the inlet short pipe (22). The inlet short pipe (22) is located between the inlet bend (21) and the inlet pipe (23) and connects the inlet bend (21) and the inlet pipe (23). The inlet short pipe (22) can be detachably connected to both the inlet pipe (23) and the inlet bend (21).

2. The inlet structure for a vertical coal slurry pump according to claim 1, characterized in that, The pump base (3) is provided with a support column (7), which is fixed at the bottom of the pump base (3). The support column (7) abuts against the inlet short pipe (22) to provide support for the inlet short pipe (22).

3. The inlet structure for a vertical coal slurry pump according to claim 2, characterized in that, The inlet short pipe (22) has an annular mounting part (8) at the end furthest from the inlet bend (21), and the inlet pipe (23) also has an annular mounting part (8) at the end closest to the inlet short pipe (22). The inlet short pipe (22) and the inlet pipe (23) are fixed together by multiple fastening bolts (9) passing through the two mounting parts (8). The fastening bolts (9) on the side of the inlet short pipe (22) closest to the pump body (1) pass through the two mounting parts (8) and into the pump body (1) to fix the inlet short pipe (22) and the inlet pipe (23) to the pump body (1). The fastening bolts (9) on the side of the inlet short pipe (22) closest to the support column (7) pass through the two mounting parts (8) and into the support column (7) to fix the inlet short pipe (22) and the inlet pipe (23) to the pump body (1).

4. The inlet structure for a vertical coal slurry pump according to claim 3, characterized in that, The inlet short pipe (22) has a protrusion (6) at one end near the inlet bend (21). The protrusion (6) is arranged in a ring around the opening of the inlet short pipe (22). The end of the inlet bend (21) near the inlet short pipe (22) cooperates with the protrusion (6) to make the inlet bend (21) and the inlet short pipe (22) lock and fix together.

5. The inlet structure for a vertical coal slurry pump according to claim 4, characterized in that, A sealing ring is embedded at the connection between the protrusion (6) and the inlet bend (21).

6. The inlet structure for a vertical coal slurry pump according to claim 1, characterized in that, The channel (101) is also provided with a tongue (4) for blocking the rotation of the medium inside the channel (101), and the side of the tongue (4) that contacts the medium is arc-shaped.

7. The inlet structure for a vertical coal slurry pump according to claim 1, characterized in that, The inlet bend (21) is provided with a flow divider (5) at one end near the channel (101). The flow divider (5) has multiple flow divider holes (51) for the flow of medium. The flow divider (5) extends from the inlet bend (21) into the channel (101).

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