Multi-cylinder high-pressure and high-viscosity oil delivery pump

Abstract

The multi-cylinder high-pressure and high-viscosity oil delivery pump comprises a pump body, an upper cover is arranged above the pump body, an oil inlet main opening is formed in the upper cover, and a hollow spiral connecting rod is inserted into the oil inlet main opening; a plurality of vertical cylinders are arranged on the periphery of the main oil inlet in the upper cover, and piston rods of the vertical cylinders are connected with the upper cover of the one-way valve in the pump body through z-shaped connecting rods; the periphery of the pump body is connected with a plurality of oil pumping cylinders. The problems that the temperature of conveyed crude oil is reduced, oil viscosity is large, and pumping is inconvenient are effectively solved, the structure is compact, it is guaranteed that the crude oil can be completely pumped out through the six evenly-distributed vertical cylinders and the six evenly-distributed oil pumping cylinders, and the conveying efficiency of the crude oil is greatly improved.

Description

Technical Field

[0001] This invention relates to the fields of marine engineering and marine energy, and in particular to a multi-cylinder high-pressure, high-viscosity oil transfer pump. Background Technology

[0002] High-viscosity oil high-pressure transfer pumps are efficient fluid transfer devices widely used in various industrial fields such as petroleum, chemical, food processing, and pharmaceuticals. They play a crucial role, especially in scenarios requiring the handling of high-viscosity oils or paste-like substances. For the transport of high-viscosity crude oil, the market mainly relies on devices such as plunger pumps and screw pumps; however, these traditional pump types have significant limitations when handling high-viscosity media.

[0003] While plunger pumps excel in oil supply pressure, traditional designs are often bulky and complex, making them unsuitable for space-constrained operating environments. Screw pumps, although simple in structure and easy to maintain, generally have lower oil supply pressures, typically around 1 MPa. This pressure level is insufficient for handling high-viscosity crude oil and cannot meet the demands of long-distance or high-resistance transportation.

[0004] Therefore, in order to address the above problems, it is particularly important to develop a multi-cylinder high-pressure transfer pump for recovering high-viscosity oil from the sea surface with optimized structure, improved material properties, and the ability to efficiently, stably, and flexibly transport media of different viscosities. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a multi-cylinder high-pressure, high-viscosity oil transfer pump. The multi-cylinder linkage design (especially a 6-cylinder linkage configuration) employed in this invention not only significantly reduces the size of the device but also greatly increases the oil supply pressure, effectively solving the pressure requirement problem in the transportation of high-viscosity crude oil.

[0006] The present invention is achieved by the following technical solution.

[0007] A multi-cylinder high-pressure, high-viscosity oil transfer pump includes a pump body, an upper cover on the top of the pump body, a main oil inlet formed on the upper cover, and a hollow spiral connecting rod inserted into the main oil inlet; several vertical cylinders are arranged around the main oil inlet on the upper cover, and the piston rods of the vertical cylinders are connected to the one-way valve cover in the pump body through a Z-shaped connecting rod; several oil suction cylinders are connected around the pump body.

[0008] By adopting the above technical solution, the main oil inlet is connected to the upper conveying device. The spiral connecting rod has a hollow internal structure, through which steam is introduced for heating and insulation. Vertical cylinders are evenly distributed around the cylinders, each containing a piston rod, to control the up-and-down movement of the check valve cover. Oil enters the pump body, and six oil-suction cylinders are evenly arranged around the pump body. Utilizing hydraulic high-pressure technology, viscous crude oil can be squeezed out of the check valve cover, ensuring complete pumping and greatly improving crude oil conveying efficiency.

[0009] Furthermore, the vertical cylinder also includes a vertical cylinder barrel, which is connected to the cylinder head via a cylinder head flange. The cylinder head is connected to the upper cover via a pressure cap, and the piston rod is placed inside the vertical cylinder barrel.

[0010] Furthermore, the oil extraction cylinder includes a cylinder barrel, inside which a piston is provided; a cylinder head is provided at the end of the cylinder barrel, the cylinder barrel is connected to the outside of the cylinder head, and the cylinder bottom is connected to the outside of the cylinder barrel.

[0011] Furthermore, the cylinder barrel is connected to the pump body via an external locking key.

[0012] Furthermore, the pump body has a small hole inside, which is connected to the oil outlet. A tension spring is provided at the small hole, with the upper part of the tension spring connected to a baffle plate and the lower part of the tension spring connected to a one-way valve cover.

[0013] Furthermore, an oil outlet is connected to the lower part of the pump body.

[0014] This application has the following beneficial effects.

[0015] This invention effectively solves the problem of crude oil temperature dropping during transportation, resulting in high oil viscosity and difficulty in pumping. It also features a compact structure and six evenly distributed vertical cylinders and a pumping cylinder to ensure that crude oil can be completely pumped out, greatly improving the efficiency of crude oil transportation and making it highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the oil extraction cylinder of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the Z-shaped connecting rod and the one-way valve cover of the present invention.

[0017] Among them, 1. spiral connecting rod, 2. main oil inlet, 3. top cover, 4. oil outlet, 5. pump body, 6. cylinder bottom, 7. cylinder barrel, 8. cylinder head, 9. cylinder barrel, 10. external locking key, 11. vertical cylinder, 12. tie rod, 13. piston, 14. one-way valve top cover, 15. Z-shaped connecting rod, 16. piston rod, 17. one-way valve cover, 18. tension spring, 19. pressure cover, 20. vertical cylinder barrel, 21. cylinder head, 22. cylinder head flange, 23. clamping seat, 24. small hole, 25. baffle. Detailed Implementation

[0018] The present patent application will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1-4As shown, a multi-cylinder high-pressure, high-viscosity oil transfer pump includes a spiral connecting rod 1, an oil inlet 2, an upper cover 3, an oil outlet 4, a pump body 5, a cylinder bottom 6, a cylinder barrel 7, a cylinder head 8, a cylinder barrel 9, an external locking key 10, a vertical cylinder 11, a tie rod 12, a piston 13, a one-way valve cover 14, a Z-shaped connecting rod 15, a piston rod 16, a one-way valve cover 17, a tension spring 18, a pressure cover 19, a vertical cylinder barrel 20, a cylinder head 21, a cylinder head flange 22, a clamping seat 23, a small hole 24, and a baffle 25.

[0020] The main oil inlet 2 is located at the top of the entire device and is used to receive crude oil from above. The spiral connecting rod 1 is located at the center of the main oil inlet 2 and connects to the upper conveying device. Structurally, it plays a guiding and positioning role for the device. The hollow design of the spiral connecting rod 1 facilitates the introduction of hot steam, which serves to heat and keep the temperature.

[0021] Six vertical cylinders 11 are located around the main oil inlet 2. Each vertical cylinder 11 is bolted to the upper cover 3. When crude oil enters, it opens the one-way valve cover 14, allowing the oil to proceed to the next stage for processing. Specifically, each vertical cylinder 11 includes a piston rod 16, a pressure cap 19, a vertical cylinder barrel 20, a cylinder head 21, and a cylinder head flange 22. The vertical cylinder barrel 20 is connected to the cylinder head 21 via the cylinder head flange 22. The cylinder head 21 is connected to the upper cover 3 via the pressure cap 19. The cylinder head 21 is bolted to the cylinder head flange 22. The pressure cap 19 is bolted to the upper cover 3. The piston rod 16 is placed inside the vertical cylinder barrel 20 and is connected to the one-way valve cover 14 via a Z-shaped connecting rod 15.

[0022] The upper cover 3 includes an upper cover body and an upper cover cover. The upper cover cover is located outside the upper cover body and is connected to the lower pump body 5 by bolts.

[0023] The pump body 5 has six sides connected to oil extraction cylinders. Each oil extraction cylinder includes an external retaining key 10, a cylinder barrel 9, a cylinder head 8, a cylinder barrel 7, a piston 13, a cylinder bottom 6, and tie rods 12. The cylinder barrel 9 has a cylinder head 8 at its end, which is externally connected to the cylinder barrel 7. The cylinder barrel 7 is externally connected to the cylinder bottom 6, and the cylinder bottom 6 and cylinder barrel 7 are fixed together with bolts. The cylinder head 8 and cylinder bottom 6 are connected by four tie rods 12 for reinforcement. The external retaining key 10 connects the pump body 5 to the cylinder barrel 9, and the cylinder barrel 9 is connected to the external retaining key 10 with bolts. The piston 13 is located inside the cylinder barrel 9 and is responsible for pumping oil to the oil outlet 4, which is connected to the pump body 5 with bolts.

[0024] A conical clamping seat 23 is connected to the top of the pump body 5, ensuring that the pump body will not shake or shift during operation and guaranteeing the stability of the device. Inside the pump body 5 is a one-way valve cover 14, above which is a Z-shaped connecting rod 15, and above the Z-shaped connecting rod 15 is a piston rod 16, the two connected by a pin. Pressing down the piston rod 16 controls the one-way valve cover 14 to open, allowing crude oil to be fed into the pump body 5.

[0025] The pump body 5 has a small hole 24 inside, which connects to the oil outlet 4. A tension spring 18 is installed at the hole 24, with its upper part connected to a baffle 25 and its lower part connected to a one-way valve cover 17. During operation, the one-way valve cover 17 opens, allowing oil to flow into the oil outlet 4. The oil outlet 4 has three outlets to facilitate crude oil pumping. The piston 13 squeezes inward, and crude oil passes through the one-way valve cover 17 into the oil outlet 4 for discharge, thus achieving crude oil pumping out, reducing operational steps and improving recovery efficiency. When pumping is not needed, the tension spring 18 tightens the one-way valve cover 17 to prevent backflow. The two one-way valves on the pump body work together to ensure that the flow direction of crude oil is unidirectional.

[0026] This application may also use thermal insulation material to insulate the area around the pump body 5.

[0027] When using this device, the crude oil is preheated from above, significantly reducing its viscosity. It then enters the main inlet 2, whereupon the vertical cylinder 11 drives the check valve cover 14, causing the oil to fall into the pump body 5. Inside the cylinder 9 is a piston 13, which pushes the crude oil inward to the outlet 4 below. The six evenly distributed vertical cylinders 11 and the extraction cylinder improve the efficiency of crude oil transport.

[0028] During crude oil transportation, the vertical cylinders 11 are connected to the top cover of the one-way valve 14 via a Z-shaped connecting rod 15. When the piston rod 16 extends, it opens the top cover of the one-way valve 14 downwards. Using hydraulic high-pressure technology, when the high-pressure oil enters the upper chamber of the vertical cylinder 11, it pushes the piston in the cylinder downwards. At this time, the volume below the pump body 5 increases, forming a negative pressure, and the crude oil is drawn into the cylinder 9. When the piston of the vertical cylinder 11 moves upwards, the top cover of the one-way valve 14 returns to its original position. At this time, the volume below the pump body 5 decreases, the pressure increases, and the crude oil is compressed. Finally, the lower oil extraction cylinder starts to work, and the oil extraction cylinders distributed around the pump body 5 pump the oil out.

[0029] All components in this application are connected by bolts, ensuring strength. The overall structure is located underwater during actual use and is compact, which can solve the problem of the crude oil temperature dropping, resulting in high oil viscosity and difficulty in pumping.

[0030] The specific embodiments described are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multi-cylinder high-pressure high-viscosity oil transfer pump, comprising a pump body (5), characterized in that: A top cover (3) is provided above the pump body (5), and an oil inlet (2) is formed on the top cover (3). A hollow spiral connecting rod (1) is inserted into the oil inlet (2). Several vertical cylinders (11) are provided around the oil inlet (2) on the top cover (3). The piston rod (16) of the vertical cylinder (11) is connected to the one-way valve cover (14) inside the pump body (5) through a Z-shaped connecting rod (15). Several oil-drawing cylinders are connected around the pump body (5).

2. The multi-cylinder high-pressure high-viscosity oil transfer pump according to claim 1, characterized in that: The vertical cylinder (11) also includes a vertical cylinder barrel (20), which is connected to the cylinder head (21) via a cylinder head flange (22). The cylinder head (21) is connected to the upper cover (3) via a pressure cap (19), and the piston rod (16) is placed inside the vertical cylinder barrel (20).

3. The multi-cylinder high-pressure, high-viscosity oil transfer pump according to claim 1, characterized in that: The oil extraction cylinder includes a cylinder barrel (9), and a piston (13) is provided inside the cylinder barrel (9); a cylinder cover (8) is provided at the end of the cylinder barrel (9), the cylinder cover (8) is connected to the outside of the cylinder barrel (7), and the cylinder barrel (7) is connected to the outside of the cylinder bottom (6).

4. The multi-cylinder high-pressure high-viscosity oil transfer pump according to claim 3, characterized in that: The cylinder barrel (9) is connected to the pump body (5) via an external key (10).

5. The multi-cylinder high-pressure high-viscosity oil transfer pump according to claim 1, characterized in that: The pump body (5) has a small hole (24) inside, which is connected to the oil outlet (4). A tension spring (18) is provided at the small hole (24). The upper part of the tension spring (18) is connected to the baffle (25), and the lower part of the tension spring (18) is connected to the one-way valve cover (17).

6. The multi-cylinder high-pressure high-viscosity oil transfer pump according to claim 1, characterized in that: The pump body (5) is connected to the oil outlet (4) at the bottom.

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