A vertical high-pressure plunger pump

Abstract

This utility model discloses a vertical high-pressure plunger pump, including a cylinder body. One-way inlet valve 1 and one-way outlet valve 1 are connected to the top two sides of the cylinder body, respectively. One-way inlet valve 2 and one-way outlet valve 2 are connected to the bottom two sides of the cylinder body, respectively. A piston body is disposed inside the cylinder body, and an oil seal is bolted to the top of the cylinder body. This utility model, by installing one-way inlet valve 1 and one-way outlet valve 1 at the top of the cylinder body, and one-way inlet valve 2 and one-way outlet valve 2 at the bottom of the cylinder body, enables the piston body to achieve two water discharges in one movement cycle. Under the same water discharge volume, the movement frequency of the piston body is reduced, thereby extending the service life of the plunger pump. By designing the plunger pump vertically, the problem of uneven wear caused by gravity during horizontal piston body movement in existing technologies can be effectively solved, further extending the service life of the plunger pump. Furthermore, it achieves the effect of no uneven wear and complete oil-water separation in vertical plunger pump operation.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump technology, specifically to a vertical high-pressure plunger pump. Background Technology

[0002] A plunger pump is a type of pump that transports fluids through the movement of a piston. It is commonly used in steam generators, which require high flow rates and high water pressures. Current plunger pumps are typically horizontal, and during operation, the piston can only pump water once per cycle. To achieve higher water pressure, the piston's movement frequency needs to be increased, leading to increased wear and a reduced pump lifespan. Furthermore, the horizontal design results in less wear on the top and more on the bottom, causing uneven wear, damage to oil seals and piston rods, and ultimately, oil and water leaks, leading to oil-water mixing and failure to separate. Therefore, there is an urgent need to design a vertical high-pressure plunger pump to address these problems. Utility Model Content

[0003] The purpose of this invention is to provide a vertical high-pressure plunger pump to address the aforementioned shortcomings in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A vertical high-pressure plunger pump includes a cylinder body. One-way inlet valve 1 and one-way outlet valve 1 are connected to the top two sides of the cylinder body, respectively. One-way inlet valve 2 and one-way outlet valve 2 are connected to the bottom two sides of the cylinder body, respectively. A piston body is disposed inside the cylinder body. An oil seal is bolted to the top of the cylinder body. A piston rod is movably inserted into the oil seal. The bottom end of the piston rod is fixed to the piston body. A drive mechanism for the reciprocating motion of the piston body is disposed at the top end of the piston rod. A cylinder liner is disposed inside the cylinder body, and the piston body is located inside the cylinder liner.

[0006] Furthermore, the one-way inlet valve one, one-way inlet valve two, one-way outlet valve two, and one-way outlet valve one are all connected to the inside of the cylinder body. The one-way inlet valve one and one-way inlet valve two are connected to a water inlet pipe through a pipeline, and the one-way outlet valve two and one-way outlet valve one are connected to a water outlet pipe through a pipeline.

[0007] Furthermore, the drive mechanism includes a hydraulic cylinder, a flange is fixed to the top of the piston rod, the output shaft of the hydraulic cylinder is fixed to the flange, the piston rod is made of tungsten-titanium alloy, the cylinder liner is made of zirconium oxide ceramic, and the piston body is made of PEEK material.

[0008] Furthermore, a fixed cylinder is bolted between the oil cylinder and the cylinder body, the flange is located inside the fixed cylinder, and an energy storage tank is connected to the top of the water outlet pipe.

[0009] Furthermore, a proximity sensor one and a proximity sensor two are threadedly connected to one side of the outer wall of the fixed cylinder, and the proximity sensor one and the proximity sensor two are located at the top and bottom of the flange, respectively.

[0010] Furthermore, the energy storage tank includes a tank body, the inner wall of the tank body is provided with a corrosion-resistant layer, an air bladder is provided inside the tank body, an air inlet is threadedly connected to the top of the tank body and the air inlet communicates with the air bladder, and a connecting ring is integrally formed at the bottom of the tank body.

[0011] In the above technical solution, the vertical high-pressure plunger pump provided by this utility model has the following advantages: By installing a one-way inlet valve and a one-way outlet valve at the top of the cylinder, and a one-way inlet valve and a one-way outlet valve at the bottom of the cylinder, the piston body can achieve two water discharges in one movement cycle. Under the same water discharge volume, the movement frequency of the piston body can be reduced, thereby extending the service life of the plunger pump. By designing the plunger pump vertically, the problem of uneven wear caused by gravity when the piston body moves horizontally in the existing horizontal plunger pump can be effectively solved, thereby further extending the service life of the plunger pump. By installing an energy storage tank at the water outlet pipe, it can adaptively adjust and maintain pressure according to the pressure, thereby achieving a stable water discharge effect of the plunger pump. The corrosion-resistant layer inside the tank can effectively prevent the appearance of raised rust spots on its inner wall, thus preventing the air bladder inside the energy storage tank from being worn through by rust spots. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a vertical high-pressure plunger pump according to the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the cylinder provided in an embodiment of a vertical high-pressure plunger pump according to this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the energy storage tank provided for an embodiment of a vertical high-pressure plunger pump according to this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Cylinder body, 2. Fixed cylinder, 3. Oil cylinder, 4. Inlet pipe, 5. Outlet pipe, 6. One-way inlet valve 1, 7. One-way inlet valve 2, 8. One-way outlet valve 2, 9. One-way outlet valve 1, 10. Energy storage tank, 11. Proximity sensor 1, 12. Proximity sensor 2, 13. Flange, 14. Cylinder liner, 15. Piston body, 16. Oil seal, 17. Tank body, 18. Airbag, 19. Air inlet nozzle, 20. Connecting ring, 21. Corrosion resistant layer, 22. Piston rod. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown in the figure, a vertical high-pressure plunger pump provided by this utility model includes a cylinder body 1. One-way inlet valve 6 and one-way outlet valve 9 are respectively connected to the top two sides of the cylinder body 1. One-way inlet valve 7 and one-way outlet valve 8 are respectively connected to the bottom two sides of the cylinder body 1. A piston body 15 is provided inside the cylinder body 1. An oil seal 16 is bolted to the top of the cylinder body 1. A piston rod 22 is movably inserted into the oil seal 16. The bottom end of the piston rod 22 is fixed to the piston body 15. A drive mechanism for the reciprocating motion of the piston body 15 is provided at the top end of the piston rod 22. A cylinder liner 14 is provided inside the cylinder body 1, and the piston body 15 is located inside the cylinder liner 14.

[0020] Specifically, in this embodiment, a cylinder body 1 is included. One-way inlet valve 6 and one-way outlet valve 9 are connected to the top two sides of the cylinder body 1, respectively. One-way inlet valve 7 and one-way outlet valve 8 are connected to the bottom two sides of the cylinder body 1, respectively. A piston body 15 is disposed inside the cylinder body 1. Fluid can only enter the upper cavity of the cylinder body 1 through one-way inlet valve 6. Fluid in the upper cavity of the cylinder body 1 can only flow out through one-way outlet valve 9. Furthermore, fluid can only enter the lower cavity of the cylinder body 15 through one-way inlet valve 7. Fluid in the lower cavity of the cylinder body 15 can only flow out through one-way outlet valve 8. This allows the piston body 15 to achieve two water discharges in one cycle. With the same water discharge volume, the frequency of piston body 15 movement can be effectively reduced, i.e., the wear of the piston body 15 per unit time is reduced, thus extending the service life of the plunger pump. The top of cylinder 1 is bolted with an oil seal 16, and a piston rod 22 is movably inserted into the oil seal 16. There is a dynamic seal between the oil seal 16 and the piston rod 22. The piston rod 22 is made of tungsten-titanium alloy, which has good wear resistance. The bottom end of the piston rod 22 is fixed to the piston body 15. The piston body 15 is made of PEEK material, which gives it good wear resistance and high hardness. The top of the piston rod 22 is provided with a drive mechanism for the reciprocating motion of the piston body 15. The drive mechanism is used to drive the piston rod 22 and the piston body 15 to move up and down reciprocally. The cylinder body 1 is provided with a cylinder liner 14, which is made of zirconia ceramic, which has good wear resistance. The piston body 15 is located inside the cylinder liner 14. Compared with the prior art, both the piston body 15 and the cylinder liner 14 are enlarged, which further reduces the movement frequency of the piston body 15 under the same water output.

[0021] This utility model provides a vertical high-pressure plunger pump. By installing a one-way inlet valve 6 and a one-way outlet valve 9 at the top of the cylinder body 1, and a one-way inlet valve 7 and a one-way outlet valve 8 at the bottom of the cylinder body 1, the piston body 15 can achieve two water discharges in one movement cycle. Under the same water discharge volume, the movement frequency of the piston body 15 can be reduced, thereby extending the service life of the plunger pump. By designing the plunger pump vertically, the problem of uneven wear caused by gravity when the piston body 15 moves horizontally in the existing horizontal plunger pump can be effectively solved. In the horizontal type, due to the effect of gravity, the upper part of the piston body 15 and piston rod 22 wears less and the lower part wears more, which easily leads to uneven wear. The oil seal 16 and piston rod 22 are easily damaged, and oil and water leakage and oil-water mixing are likely to occur. The vertical design can effectively solve the above problems, making it less prone to oil and water leakage and achieving the effect of oil-water separation, thereby further extending the service life of the plunger pump.

[0022] In another embodiment of this utility model, one-way inlet valve 6, one-way inlet valve 7, one-way outlet valve 8, and one-way outlet valve 9 are all connected to the inside of the cylinder body 1. One-way inlet valve 6 and one-way inlet valve 7 are connected to a water inlet pipe 4 through a pipe, and the water inlet pipe 4 is connected to a water source through a pipe. One-way outlet valve 8 and one-way outlet valve 9 are connected to an outlet pipe 5 through a pipe, and the outlet pipe 5 is connected to the water inlet of the steam generator. The driving mechanism includes a hydraulic cylinder 3. A flange 13 is fixed to the top of the piston rod 22. The output shaft of the hydraulic cylinder 3 is fixed to the flange 13. The hydraulic cylinder 3 drives the piston rod 22 to move up and down, thereby causing the piston rod 22 to drive the piston body 15 to move. At the same time, the hydraulic cylinder 3 is connected to the existing hydraulic system through a pipe, so that the hydraulic system controls the operation of the hydraulic cylinder 3.

[0023] In another embodiment of this utility model, a fixed cylinder 2 is bolted between the cylinder 3 and the cylinder body 1. The flange 13 is located inside the fixed cylinder 2. An energy storage tank 10 is connected to the top of the water outlet pipe 5. By installing the energy storage tank at the water outlet pipe 5, it can adaptively adjust and maintain pressure according to the pressure, thereby achieving a stable water output effect of the plunger pump. A proximity sensor 11 and a proximity sensor 22 are threadedly connected to one side of the outer wall of the fixed cylinder 2. The proximity sensor 11 and the proximity sensor 22 are located at the top and bottom of the flange 13, respectively. When the flange 13 approaches the proximity sensor 11 or the proximity sensor 22, the proximity sensor 11 or the proximity sensor 22 transmits an electrical signal to the hydraulic system. After receiving the signal, the hydraulic system immediately controls the cylinder 3 to perform a reverse action, so that the piston body 15 achieves a reciprocating motion of up and down circulation. The control principle between the proximity sensor 11, the proximity sensor 22, the cylinder 3 and the hydraulic system is the prior art.

[0024] In another embodiment of this utility model, the energy storage tank 10 includes a tank body 17. The inner wall of the tank body 17 is provided with a corrosion-resistant layer 21. The corrosion-resistant layer 21 inside the tank body 17 can effectively prevent the appearance of raised rust spots on its inner wall, thereby preventing the air bladder 18 inside the energy storage tank from being worn through by rust spots. An air bladder 18 is provided inside the tank body 17. An air inlet 19 is threadedly connected to the top of the tank body 17 and communicates with the air bladder 18. The air inlet 19 is a prior art technology. Nitrogen gas can be injected into the air bladder 18 through the air inlet 19. A connecting ring 20 is integrally formed at the bottom of the tank body 17. The connecting ring 20 is threadedly connected to the water outlet pipe 5, so that nitrogen gas can be compressed and stored when the water pressure is high and the stored energy can be released when the water pressure is low, so that the water pressure remains stable. The working principle of the energy storage tank 10 is a prior art technology.

[0025] Working principle: During use, the water source is connected to the inlet pipe 4 through a pipe, and the outlet pipe 5 is connected to the inlet of the steam generator through a pipe. The cylinder 3 drives the piston rod 22 and the piston body 15 to move up and down. When the piston body 15 moves downward, the water at the bottom of the piston body 15 flows into the outlet pipe 5 through the one-way valve 28. At the same time, there is a negative pressure above the piston body 15, which causes the water inside the inlet pipe 4 to enter the top of the piston body 15 through the one-way valve 16. When the piston body 15 moves upward, the piston body 15 pushes the water above it out through the one-way valve 28. At the same time, a negative pressure is formed below the piston body 15, which causes the water inside the inlet pipe 4 to enter the bottom of the piston body 15 through the one-way valve 27. This process is repeated to achieve the effect of supplying water to the inside of the steam generator.

[0026] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vertical high pressure piston pump, characterized in that, The cylinder includes a cylinder body (1), with a one-way inlet valve (6) and a one-way outlet valve (9) connected to the top two sides of the cylinder body (1) respectively, and a one-way inlet valve (7) and a one-way outlet valve (8) connected to the bottom two sides of the cylinder body (1) respectively. A piston body (15) is provided inside the cylinder body (1), and an oil seal (16) is bolted to the top of the cylinder body (1). A piston rod (22) is movably inserted into the oil seal (16). The bottom end of the piston rod (22) is fixed to the piston body (15), and a drive mechanism for the reciprocating motion of the piston body (15) is provided at the top end of the piston rod (22). A cylinder liner (14) is provided inside the cylinder body (1), and the piston body (15) is located inside the cylinder liner (14).

2. A vertical high pressure piston pump according to claim 1, characterized in that The one-way inlet valve (6), one-way inlet valve (7), one-way outlet valve (8) and one-way outlet valve (9) are all connected to the inside of the cylinder (1). The one-way inlet valve (6) and one-way inlet valve (7) are connected to the water inlet pipe (4) through the pipe. The one-way outlet valve (8) and one-way outlet valve (9) are connected to the water outlet pipe (5) through the pipe.

3. A vertical high pressure piston pump according to claim 2, characterized in that The drive mechanism includes a hydraulic cylinder (3), a flange (13) is fixed to the top of the piston rod (22), the output shaft of the hydraulic cylinder (3) is fixed to the flange (13), the piston rod (22) is made of tungsten-titanium alloy, the cylinder liner (14) is made of zirconium oxide ceramic, and the piston body (15) is made of PEEK material.

4. A vertical high pressure piston pump according to claim 3, characterized in that The cylinder (3) and the cylinder body (1) are connected by bolts to a fixed cylinder (2), the flange (13) is located inside the fixed cylinder (2), and the top of the water outlet pipe (5) is connected to an energy storage tank (10).

5. A vertical high pressure piston pump according to claim 4, characterized in that The outer wall of one side of the fixed cylinder (2) is threaded with a proximity sensor one (11) and a proximity sensor two (12), which are located at the top and bottom of the flange (13), respectively.

6. A vertical high pressure piston pump according to claim 4, characterized in that The energy storage tank (10) includes a tank body (17), the inner wall of the tank body (17) is provided with a corrosion-resistant layer (21), an air bladder (18) is provided inside the tank body (17), an air inlet (19) is threadedly connected to the top of the tank body (17), the air inlet (19) is connected to the air bladder (18), and a connecting ring (20) is integrally formed at the bottom of the tank body (17).

Images