High-pressure peripheral pump

Abstract

The high-pressure peripheral pump comprises a peripheral pump body and a liquid inlet pipe, the liquid inlet pipe is integrally formed on the outer side of a pump shell of the peripheral pump body, the high-pressure peripheral pump further comprises a liquid adjusting mechanism, and the liquid adjusting mechanism comprises a hexagonal fixed block, a rotating pipe, a spindle variable-diameter cylinder, an outer connecting pipe, a flange plate, a liquid cutting plate, a reducing cup pipe and a hexagonal protruding block. The liquid adjusting mechanism is arranged at the position of the liquid inlet pipe of the peripheral pump body, and a spindle variable-diameter cylinder, a liquid cutting plate, a side cutting rib plate, a reducing cup pipe and other components in the liquid adjusting mechanism are matched with one another, so that liquid entering the liquid inlet pipe can be effectively adjusted; after liquid enters the spindle variable-diameter cylinder, the flow speed is reduced, the liquid cutting plate and the side cutting rib plate can perform separation and flow division, and the reducing cup pipe guides the liquid to contract and enter the liquid inlet pipe, so that the pressure of the liquid in the liquid inlet pipe is increased, the possibility of cavitation is reduced, the stability of the pump is improved, and the service life of the pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of vortex pump technology, and in particular to a high-pressure vortex pump. Background Technology

[0002] A high-pressure vortex pump is a special type of centrifugal pump, mainly used for high-pressure liquid transportation. It mainly consists of an impeller, pump casing, shaft sealing device, motor and other parts. The impeller usually has multiple blades, and its shape and structure design are conducive to efficient liquid pressurization. The pump casing has a special flow channel design that enables the liquid to form a vortex flow inside the pump to improve the pump performance.

[0003] When a high-pressure vortex pump in the prior art is pumping liquid, if the flow rate of the vortex pump exceeds its rated flow rate, the liquid velocity at the impeller inlet will increase, leading to a decrease in pressure and thus increasing the possibility of cavitation. Cavitation will cause a decrease in pump head and efficiency. Due to the presence of bubbles, the continuity of the liquid is disrupted, and the impeller's ability to do work on the liquid is weakened, thereby reducing the pump head. To address this, we propose a high-pressure vortex pump. Utility Model Content

[0004] The main objective of this invention is to provide a high-pressure vortex pump. By setting a liquid regulating mechanism at the inlet pipe of the vortex pump body, the components of the liquid regulating mechanism, such as the spindle-shaped variable diameter cylinder, the liquid cutting plate, the side cutting ribs, and the reduced diameter cup tube, work together to effectively regulate the liquid entering the inlet pipe. After the liquid enters the spindle-shaped variable diameter cylinder, the flow velocity decreases. The liquid cutting plate and the side cutting ribs can separate and divert the flow, while the reduced diameter cup tube guides the liquid to contract and enter the inlet pipe, thereby increasing the liquid pressure in the inlet pipe, reducing the possibility of cavitation, improving the stability and service life of the pump, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-pressure vortex pump includes a vortex pump body and an inlet pipe. The inlet pipe is integrally formed on the outer side of the pump casing of the vortex pump body. It also includes a liquid adjustment mechanism, which includes a hexagonal fixed block, a spin-on pipe, a spindle-shaped reducing cylinder, an external connecting pipe, a flange, a cutting plate, a reducing cup pipe, and a hexagonal protrusion. A hexagonal fixed block is welded and fixed at the outer opening of the inlet pipe, and a spin-on pipe is screwed into the inner part of the inlet pipe. The body of the spin-on pipe is interconnected with the external connecting pipe through the spindle-shaped reducing cylinder and welded. A flange is welded to the outer body of the external connecting pipe away from the spindle-shaped reducing cylinder. A cutting plate is welded centrally in the cavity of the spindle-shaped reducing cylinder on the side near the spindle-on pipe, and side cutting ribs are integrally formed on both sides of the cutting plate. A reducing cup pipe is welded and fixed in the spindle-shaped reducing cylinder between the spindle-on pipe and the cutting plate, and a hexagonal protrusion is raised on the outer body of the spindle-on pipe near the spindle-shaped reducing cylinder.

[0007] Furthermore, the hexagonal block has symmetrical screw-on holes on its surface, and an internal hexagonal bolt for opposing and locking against the hexagonal protrusion is screwed into the screw-on hole.

[0008] By adopting the above technical solution, when the spin-on tube is screwed into the hexagonal fixed block and the inlet tube, the hexagonal protrusion can press against the surface of the hexagonal fixed block, and then the internal hexagonal stop bolt can be screwed out at the spin-on hole, so that the internal hexagonal stop bolt is symmetrically blocked outside the hexagonal protrusion, thus restricting the reverse rotation of the spin-on tube.

[0009] Furthermore, the hexagonal block and the inlet pipe have threaded cavities inside, and a spin-on tube is screwed into the threaded cavity of the hexagonal block and the inlet pipe.

[0010] By adopting the above technical solution, the hexagonal block and the inlet pipe can be connected by screwing in the threaded cavity.

[0011] Furthermore, a sealing ring is fitted around the outside of the spin-on tube, and an annular groove for fitting the sealing ring is formed on the surface of the hexagonal fixing block outside the spin-on tube.

[0012] By adopting the above technical solution, after the spool-on tube is fitted with a sealing ring, the sealing ring can be stuck in the annular groove of the hexagonal block and pressed against by the hexagonal protrusion, ensuring the spool-on tube's sealing performance at the hexagonal block.

[0013] Furthermore, four sets of side-cutting ribs are symmetrically fixed on both sides of the liquid-cutting plate, and corner heads are provided on the side-cutting ribs and the liquid-cutting plate facing the external connecting pipe.

[0014] By adopting the above technical solution, the liquid cutting plate with side cutting ribs can be used to separate and divert liquids within the spindle-shaped variable diameter cylinder.

[0015] Furthermore, the reduced-diameter cup tube gradually decreases in size from the liquid cutting plate towards the spin-on tube direction;

[0016] By adopting the above technical solution, the reduced diameter cup tube can guide the conveying liquid in the spindle-shaped variable diameter cylinder to shrink and enter the inlet pipe, and then rush into the vortex pump body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention features a liquid regulating mechanism installed at the inlet pipe of the vortex pump body. The components of the liquid regulating mechanism, such as the spindle-shaped variable diameter cylinder, the liquid cutting plate, the side cutting ribs, and the reduced diameter cup tube, work together to effectively regulate the liquid entering the inlet pipe. After the liquid enters the spindle-shaped variable diameter cylinder, the flow velocity decreases. The liquid cutting plate and the side cutting ribs can separate and divert the liquid, while the reduced diameter cup tube guides the liquid to contract and enter the inlet pipe, thereby increasing the liquid pressure in the inlet pipe, reducing the possibility of cavitation, and improving the stability and service life of the pump.

[0019] Furthermore, when the spin-on tube of the liquid mixing mechanism is screwed into the inlet pipe and the hexagonal fixed block, an internal hexagonal stop plug can be screwed out from the spin-on hole of the hexagonal fixed block. This allows the internal hexagonal stop plug to be symmetrically blocked outside the hexagonal protrusion, restricting the reverse rotation of the spin-on tube and ensuring the installation stability of the liquid mixing mechanism at the inlet pipe. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-pressure vortex pump according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the disassembly of the hexagonal fixed block and the spin-on tube of a high-pressure vortex pump according to this utility model.

[0022] Figure 3 This is an exploded view of the liquid regulating mechanism of a high-pressure vortex pump according to this utility model.

[0023] Figure 4 This is a cross-sectional view of the spindle-shaped reducing cylinder, spin-on pipe, external connecting pipe, and flange of a high-pressure vortex pump according to this utility model.

[0024] In the diagram: 1. Vortex pump body; 2. Inlet pipe; 3. Liquid adjustment mechanism; 4. Hexagonal stop block; 5. Spin-on pipe; 6. Spindle-shaped reducing cylinder; 7. External connecting pipe; 8. Flange; 9. Cutting plate; 10. Side cutting rib; 11. Reducing diameter cup pipe; 12. Hexagonal protrusion; 13. Spin-on hole; 14. Internal hexagonal stop bolt; 15. Sealing ring. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4As shown, a high-pressure vortex pump includes a vortex pump body 1 and an inlet pipe 2. The inlet pipe 2 is integrally formed on the outer side of the pump casing of the vortex pump body 1. It also includes a liquid regulating mechanism 3, which includes a hexagonal fixing block 4, a spindle-shaped reducing tube 5, a spindle-shaped reducing cylinder 6, an external connecting pipe 7, a flange 8, a cutting plate 9, a reducing cup tube 11, and a hexagonal protrusion 12. The hexagonal fixing block 4 is welded and fixed to the outer opening of the inlet pipe 2, and the spindle-shaped fixing block 4 is spun into the inlet pipe 2 to install the spindle-shaped tube 5. The tube body is interconnected with the external connecting pipe 7 by a spindle-shaped reducing cylinder 6 and welded. A flange 8 is welded to the outer tube body of the external connecting pipe 7 away from the spindle-shaped reducing cylinder 6. A liquid cutting plate 9 is welded to the center of the cylinder cavity on the side of the spindle-shaped reducing cylinder 6 near the spin-on tube 5. Side cutting ribs 10 are integrally formed on both sides of the liquid cutting plate 9. A reduced diameter cup tube 11 is welded and fixed inside the spindle-shaped reducing cylinder 6 between the spin-on tube 5 and the liquid cutting plate 9. A hexagonal protrusion 12 protrudes from the tube body of the spindle-shaped reducing cylinder 6 near the spindle-shaped reducing cylinder 6.

[0027] Among them, the hexagonal fixed block 4 has symmetrical screw-on holes 13 on its block surface, and an internal hexagonal bolt 14 for opposing and locking against the hexagonal protrusion 12 is screwed into the screw-on hole 13.

[0028] By adopting the above technical solution, when the spin-on tube 5 is screwed into the hexagonal fixed block 4 and the liquid inlet tube 2, the hexagonal protrusion 12 can press against the surface of the hexagonal fixed block 4, and then the internal hexagonal stop 14 can be screwed out at the spin-on hole 13, so that the internal hexagonal stop 14 is symmetrically blocked outside the hexagonal protrusion 12, restricting the reverse rotation of the spin-on tube 5.

[0029] The hexagonal fixed block 4 and the liquid inlet pipe 2 are provided with threaded cavities, and a screw-on pipe 5 is screwed into the threaded cavities of the hexagonal fixed block 4 and the liquid inlet pipe 2.

[0030] By adopting the above technical solution, the hexagonal fixed block 4 and the liquid inlet pipe 2 can be connected by screwing the threaded pipe cavity to the screw-on pipe 5.

[0031] The screw-on tube 5 has a sealing ring 15 fitted around its outer tube body, and the hexagonal fixing block 4 outside the screw-on tube 5 has an annular groove for fitting the sealing ring 15.

[0032] By adopting the above technical solution, after the screw-on tube 5 is fitted with the sealing ring 15, the sealing ring 15 can be locked in the annular groove of the hexagonal fixed block 4 and pressed against by the hexagonal protrusion 12, thus ensuring the screw-on sealing performance of the screw-on tube 5 at the hexagonal fixed block 4.

[0033] Among them, four sets of side cutting ribs 10 are symmetrically fixed on both sides of the liquid cutting plate 9, and corner heads are provided on the side cutting ribs 10 and the liquid cutting plate 9 facing the external connecting pipe 7.

[0034] By adopting the above technical solution, the liquid cutting plate 9, with the side cutting rib plate 10, can be separated and diverted within the spindle-shaped variable diameter cylinder 6.

[0035] The reduced diameter cup tube 11 gradually decreases in size from the liquid cutting plate 9 toward the spin-on tube 5;

[0036] By adopting the above technical solution, the reduced diameter cup tube 11 can guide the conveying liquid in the spindle-shaped variable diameter cylinder 6 to shrink and enter the inlet pipe 2 and rush into the vortex pump body 1.

[0037] It should be noted that this utility model is a high-pressure vortex pump. A liquid regulating mechanism 3 is set at the inlet pipe 2 of the vortex pump body 1. After the hexagonal fixing block 4 of the liquid regulating mechanism 3 is fixed at the inlet pipe 2, the screw-on tube 5 is fitted with a sealing ring 15. The spindle-shaped variable diameter cylinder 6 can be screwed into the hexagonal fixing block 4 and the inlet pipe 2 by means of the screw-on tube 5. The sealing ring 15 fitted on the outside of the screw-on tube 5 can be pressed against the hexagonal fixing block 4 by the hexagonal protrusion 12. At this time, the internal hexagonal stop bolt 14 can be screwed out from the screw-on hole 13 of the hexagonal fixing block 4, so that the internal hexagonal stop bolt 14 is symmetrical. The hexagonal protrusion 12 blocks the reverse rotation of the spin-on pipe 5. Then, the external connecting pipe 7 is flanged with the flange of the external liquid delivery pipeline by means of the flange 8, bolts and nuts. When the liquid enters the spindle-shaped reducing cylinder 6 along the external connecting pipe 7, the liquid flow rate will decrease. Then, the liquid enters the inlet pipe 2 along the spin-on pipe 5 by means of the liquid cutting plate 9 and the reducing cup pipe 11. Under the condition that other conditions remain unchanged, the pressure of the liquid in the inlet pipe will increase, thereby increasing the pressure at the inlet of the vortex pump body 1 and reducing the possibility of cavitation.

[0038] It should be noted that this utility model is a high-pressure vortex pump. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure vortex pump, comprising a vortex pump body (1) and an inlet pipe (2), wherein the inlet pipe (2) is integrally formed on the outer side of the pump casing of the vortex pump body (1), characterized in that: It also includes a liquid preparation mechanism (3), which includes a hexagonal fixing block (4), a spin-on tube (5), a spindle-shaped reducing cylinder (6), an external connecting pipe (7), a flange (8), a liquid cutting plate (9), a reducing cup tube (11), and a hexagonal protrusion (12). The hexagonal fixing block (4) is welded and fixed at the outer opening of the liquid inlet pipe (2), and the hexagonal fixing block (4) is screwed into the liquid inlet pipe (2) to install the spin-on tube (5). The tube body of the spin-on tube (5) is interconnected and welded to the external connecting pipe (7) through the spindle-shaped reducing cylinder (6). Furthermore, a flange (8) is welded to the outer tube body of the external connecting pipe (7) away from the spindle-shaped reducing cylinder (6). A liquid cutting plate (9) is welded in the center of the cylinder cavity on the side of the spindle-shaped reducing cylinder (6) near the spin-on pipe (5). Side cutting ribs (10) are integrally formed on both sides of the liquid cutting plate (9). A reduced diameter cup tube (11) is welded and fixed inside the spindle-shaped reducing cylinder (6) between the spindle-on pipe (5) and the liquid cutting plate (9). A hexagonal protrusion (12) protrudes from the outer tube body of the spindle-on pipe (5) near the spindle-shaped reducing cylinder (6).

2. A high-pressure vortex pump according to claim 1, characterized in that: The hexagonal block (4) has symmetrical screw-on holes (13) on its surface, and an internal hexagonal bolt (14) for opposing and locking against the hexagonal protrusion (12) is screwed into the screw-on hole (13).

3. A high-pressure vortex pump according to claim 1, characterized in that: The hexagonal block (4) and the inlet pipe (2) have threaded cavities inside, and a screw-on pipe (5) is screwed into the threaded cavity of the hexagonal block (4) and the inlet pipe (2).

4. A high-pressure vortex pump according to claim 1, characterized in that: The spin-on tube (5) has a sealing ring (15) fitted on its outer casing, and the surface of the hexagonal fixing block (4) outside the spin-on tube (5) has an annular groove for fitting the sealing ring (15).

5. A high-pressure vortex pump according to claim 1, characterized in that: The side cutting ribs (10) are symmetrically fixed in four sets on both sides of the liquid cutting plate (9), and the side cutting ribs (10) and the liquid cutting plate (9) are provided with corner heads at the plate body facing the external connecting pipe (7).

6. A high-pressure vortex pump according to claim 1, characterized in that: The reduced diameter cup tube (11) gradually shrinks from the liquid cutting plate (9) toward the spin-on tube (5).

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