An efficient and high-pressure multi-stage pump

Abstract

The present invention discloses an efficient and high-pressure multi-stage pump, which includes a multi-stage pump body. A pump housing is provided on the multi-stage pump body. Inside the pump housing, vortex fan pressurization grooves are equidistantly arranged. Inside the vortex fan pressurization grooves of the pump housing, there are vortex fans. In the center of the inside of the vortex fan, there is a transmission shaft. At both ends of the pump housing, a flow collecting groove and an inflow groove are respectively provided. In the center of the inside of the main shaft positioning end cover on one side of the flow collecting groove, there is a circular bearing. One end of the transmission shaft is fitted and installed with the circular bearing in the center of the inside of the main shaft positioning end cover. The transmission shaft is close to the other end and is fitted and installed with the circular bearing inside the inflow groove. One end of the transmission shaft is fixedly installed with a hydraulic motor. On the outer wall of the pump housing, reinforcement connection hoops are equidistantly arranged. The multi-stage pump body uses multi-stage vortex fans for step-by-step pressurization, which can greatly improve the pressurization of liquid and has a high pressurization efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of high-efficiency and high-pressure pumps, and specifically to a high-efficiency and high-pressure multistage pump. Background Art

[0002] A multistage pump is a centrifugal pump in which the water inlet and outlet sections and the middle section are combined together by a pull rod. Its output water pressure can be very large. It also relies on the rotation of the impeller to obtain centrifugal force, thereby pumping materials. The gas density is gradually reduced until it reaches the working range of the mechanical vacuum pump and is then pumped out, gradually obtaining a high vacuum.

[0003] A multistage pump achieves suction, compression, and exhaust by changing the volume of the pump chamber. Therefore, it is a centrifugal pump with variable volume.

[0004] After searching the prior art, it is found that the Chinese invention patent publication number is CN 112855550 A, which discloses a multistage pump. The multistage pump is rotatably arranged within the pump housing and has a longitudinal axis. The first impeller is arranged within the housing at a first position along the shaft. The second impeller is arranged at a second position and along the shaft within the housing. The pipe is detachably attached to the pump housing and has an inlet and an outlet. The inlet is arranged at the discharge part of the first impeller, and the outlet is arranged at the inlet of the second impeller, so that the discharge from the first impeller can be conveyed to the inlet of the second impeller. However, the structure of this multistage pump is extremely complex, and the pressurization efficiency is not high enough. There is an urgent need for an improved technology to solve this problem existing in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a multistage pump with a pump housing provided on the multistage pump body. The inside of the pump housing is equidistantly provided with vortex fan pressurization grooves. Inside the vortex fan pressurization grooves of the pump housing, there are vortex fans. In the center of the inside of the vortex fans, there is a transmission shaft. At both ends of the pump housing, there are respectively a collector groove and an inflow groove. In the center of the inside of the main shaft positioning end cover on one side of the collector groove, there is an annular bearing. One end of the transmission shaft is fitted and installed with the annular bearing in the center of the inside of the main shaft positioning end cover. The transmission shaft is close to the other end and is fitted and installed with the annular bearing inside the inflow groove. One end of the transmission shaft is fixedly installed with a hydraulic motor. The outer wall of the pump housing is equidistantly provided with reinforcement connection hoops. The multistage pump body uses multiple-stage vortex fans for step-by-step pressurization, which can greatly improve the pressurization of liquids and has high pressurization efficiency, a high-efficiency and high-pressure multistage pump, so as to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: An efficient and high-pressure multi-stage pump, including a multi-stage pump body, a base is provided on the multi-stage pump body, a pump housing is provided above the base, a vortex fan pressurization groove is provided inside the pump housing, adjacent vortex fan pressurization grooves are communicated with each other, a vortex fan is provided inside the vortex fan pressurization groove, the vortex fan is cooperatively installed with the vortex fan pressurization groove, a transmission shaft is horizontally provided inside the vortex fan pressurization groove, and the vortex fan is fixedly installed with the transmission shaft;

[0007] One end of the pump housing is provided with a current collecting groove, and the other end of the pump housing is provided with an inflow groove. The current collecting groove, the inflow groove and the pump housing are of an integral structure. A hydraulic motor is provided on one side of the inflow groove, and the rotating shaft of the hydraulic motor is fixedly connected with the end of the transmission shaft by a coupling.

[0008] Preferably, reinforcing connection hoops and reinforcing screws are equidistantly provided on the outer wall of the pump housing. The reinforcing connection hoops and the pump housing are of an integral structure. The reinforcing screws are cooperatively connected with the reinforcing connection hoops on the outer wall of the pump housing. Both ends of the reinforcing screws are fixedly connected with the screws on the outer walls of the inflow groove and the current collecting groove respectively. Fixed support members are provided on both sides of the bottom of the pump housing. The fixed support members are fixedly connected with the outer wall of the bottom of the pump housing, and the fixed support members and the base are fixedly connected by screws.

[0009] Preferably, a pressurizing rotary blade and a ventilation rotary blade are provided on one side surface of the vortex fan. The pressurizing rotary blade and the ventilation rotary blade are arranged alternately. The pressurizing rotary blade, the ventilation rotary blade and the vortex fan are of an integral structure. A ventilation port is provided in the center of the ventilation rotary blade, and the ventilation port penetrates through the ventilation rotary blade.

[0010] Preferably, the bottom of the current collecting groove is an isosceles trapezoid. An annular bearing is provided on one side wall of the current collecting groove. A liquid outlet port is provided at the top of the current collecting groove. The liquid outlet port and the current collecting groove are of an integral structure. A main shaft positioning end cover is provided on the outer wall of the current collecting groove. The main shaft positioning end cover is conical. The main shaft positioning end cover is welded to the outer wall of the current collecting groove. An annular bearing is provided in the center of the main shaft positioning end cover. One end of the transmission shaft is cooperatively installed with the annular bearing in the center of the main shaft positioning end cover.

[0011] Preferably, the bottom of the inflow groove is an isosceles trapezoid. A boosting rotary blade is provided near the right side inside the inflow groove. The boosting rotary blade is fixedly connected with the outer wall of the transmission shaft. An inflow port is provided at the top of the inflow groove. The inflow port is communicated with the vortex fan pressurization groove inside the pump housing. The vortex fan and the boosting rotary blade have the same structure.

[0012] Preferably, a motor controller is cooperatively provided on the hydraulic motor, and a cooperating mounting seat is cooperatively provided between the bottom of the hydraulic motor and the base.

[0013] Preferably, one side wall of the turbofan pressurizing groove is a vertical wall, and the other side is a ramp groove body. The ramp on one side of the turbofan pressurizing groove forms an angle of 30° with the vertical direction, and the inner wall of the turbofan pressurizing groove is mirror-polished.

[0014] Preferably, the base is a rectangular base, and reinforcing ribs are provided inside the base. The reinforcing ribs and the base are of an integral structure, and a mating installation groove is provided inside the base.

[0015] Preferably, a working method of a high-efficiency and high-pressure multi-stage pump includes the following steps:

[0016] Step 1: The hydraulic motor rotates at a high speed to drive the transmission shaft to rotate. The transmission shaft drives the boosting rotating blades and the turbofan to rotate rapidly. The boosting rotating blades push the air flow inside the inflow groove to the inside of the turbofan pressurizing groove at the rightmost end of the pump housing.

[0017] Step 2: The turbofan inside the turbofan pressurizing groove at the rightmost end of the pump housing rotates rapidly, pushing the air flow to the left in sequence. The air flow is compressed from right to left in sequence, increasing the compression ratio of the air flow.

[0018] Step 3: Finally, the air that has been gradually pressurized by multiple stages of turbofans is quickly discharged from the liquid outlet port above the manifold groove.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) A transmission shaft is horizontally provided inside the turbofan pressurizing groove. The turbofan is fixedly installed with the transmission shaft. The pressurizing rotating blades on the turbofan drive the air flow, continuously driving and pressing the air flow. At the same time, the ventilation rotating blades not only have a certain pressurizing effect on the air, but also the ventilation openings on the ventilation rotating blades facilitate the flow of air, enabling the air flow to quickly enter the pressurizing rotating blades of the lower stage for compression.

[0021] (2) A ring bearing is provided in the center inside the main shaft positioning end cover. One end of the transmission shaft is fitted with the ring bearing in the center inside the main shaft positioning end cover. The manifold groove gathers the air flow that has been gradually pressurized and then conducts it out, enabling the air flow to be quickly released.

[0022] (3) A turbofan pressurizing groove is provided inside the pump housing. One side wall of the turbofan pressurizing groove is a vertical wall, and the other side is a ramp groove body. The ramp on one side of the turbofan pressurizing groove forms an angle of 30° with the vertical direction. The inner wall of the turbofan pressurizing groove is mirror-polished. The turbofan pressurizing groove adopts a design with asymmetric inner side walls. The inclined side of the turbofan pressurizing groove with an inclination angle facilitates the entry of the air flow, and the vertical inner wall of the turbofan pressurizing groove can slow down the outflow of the air inside the turbofan pressurizing groove, enabling better pressurization of the air flow.

[0023] (4) The multi-stage pump body adopts multi-stage vortex fans to increase pressure step by step, which can greatly improve the pressure increase of the liquid, with high pressure increase efficiency, and the structure of the pressure increasing pump is simple. Brief Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the multi-stage pump body of the present invention;

[0025] Figure 2 It is a sectional view of the multi-stage pump body of the present invention;

[0026] Figure 3 It is a schematic diagram of the vortex fan of the present invention.

[0027] In the figure: 1. Multi-stage pump body; 2. Pump housing; 3. Reinforcing connection hoop; 4. Liquid outlet port; 5. Flow collecting groove; 6. Main shaft positioning end cover; 7. Base; 8. Fitting mounting seat; 9. Motor controller; 10. Hydraulic motor; 11. Inflow port; 12. Vortex fan pressure increasing groove; 13. Vortex fan; 14. Ring bearing; 15. Transmission shaft; 16. Inflow groove; 17. Boosting rotating blade; 18. Pressure increasing rotating blade; 19. Ventilating rotating blade; 20. Ventilation port. Specific Embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-3 , the present invention provides a technical solution: an efficient and high-pressure multi-stage pump, including a multi-stage pump body 1, a base 7 is provided on the multi-stage pump body 1, a pump housing 2 is provided above the base 7, reinforcing connection hoops 3 and reinforcing screws are equidistantly provided on the outer wall of the pump housing 2, the reinforcing connection hoop 3 and the pump housing 2 are of an integral structure, the reinforcing screw is in fit connection with the reinforcing connection hoop 3 on the outer wall of the pump housing 2, both ends of the reinforcing screw are fixedly connected to the screws on the outer walls of the inflow groove 16 and the flow collecting groove 5 respectively, fixed support members are provided on both sides of the bottom of the pump housing 2, the fixed support members are fixedly connected to the outer wall of the bottom of the pump housing 2, and the fixed support members and the base 7 are fixedly connected by screws.

[0030] Inside the pump housing 2, there is a vortex fan supercharging groove 12. One side wall of the vortex fan supercharging groove 12 is a vertical wall, and the other side is a ramp groove body. The ramp on one side of the vortex fan supercharging groove 12 forms an angle of 30° with the vertical direction. The inner wall of the vortex fan supercharging groove 12 is mirror-polished. The vortex fan supercharging groove 12 adopts a design with asymmetric inner side walls. The inclined side of the vortex fan supercharging groove 12 with an inclination angle facilitates the entry of air flow, and the vertical inner wall of the vortex fan supercharging groove 12 can slow down the outflow of air inside the vortex fan supercharging groove 12, enabling better supercharging of the air flow.

[0031] Adjacent vortex fan supercharging grooves are interconnected. Inside the vortex fan supercharging groove 12, there is a vortex fan 13. On one side surface of the vortex fan 13, there are supercharging rotating blades 18 and ventilation rotating blades 19. The supercharging rotating blades 18 and the ventilation rotating blades 19 are arranged alternately. The supercharging rotating blades 18, the ventilation rotating blades 19 and the vortex fan 13 are of an integral structure. In the center of the inside of the ventilation rotating blade 19, there is a ventilation port 20. The ventilation port 20 penetrates through the ventilation rotating blade 19. The vortex fan 13 is installed in cooperation with the vortex fan supercharging groove 12. Inside the vortex fan supercharging groove 12, there is a transmission shaft 15 arranged horizontally. The vortex fan 13 is fixedly installed with the transmission shaft 15. The supercharging rotating blades 18 on the vortex fan 13 drive the air flow, continuously driving and pressing the air flow. At the same time, the ventilation rotating blades 19 not only have a certain supercharging effect on the air, but also the ventilation ports 20 on the ventilation rotating blades 19 facilitate the flow of air, enabling the air flow to quickly enter the supercharging rotating blades 18 in the lower stage for compression.

[0032] At one end of the pump housing 2, there is a current collecting groove 5. At the other end of the pump housing 2, there is an inflow groove 16. The current collecting groove 5, the inflow groove 16 and the pump housing 2 are of an integral structure. On one side of the inflow groove 16, there is a hydraulic motor 10. The rotating shaft of the hydraulic motor 10 is fixedly connected to the end of the transmission shaft 15 by a coupling. A motor controller 9 is provided in cooperation with the hydraulic motor 10. Between the bottom of the hydraulic motor 10 and the base 7, there is a cooperating mounting seat.

[0033] The bottom of the current collecting groove 5 is an isosceles trapezoid. On one side wall of the current collecting groove 5, there is an annular bearing 14. At the top of the current collecting groove 5, there is a liquid outlet port 4. The liquid outlet port 4 and the current collecting groove 5 are of an integral structure. On the outer wall of the current collecting groove 5, there is a main shaft positioning end cover 6. The main shaft positioning end cover 6 is conical. The main shaft positioning end cover 6 is welded to the outer wall of the current collecting groove 5. In the center of the inside of the main shaft positioning end cover 6, there is an annular bearing 14. One end of the transmission shaft 15 is installed in cooperation with the annular bearing 14 in the center of the inside of the main shaft positioning end cover 6. The current collecting groove 5 aggregates the air flow after being supercharged step by step and then exports it, enabling the rapid release of the air flow.

[0034] The bottom of the inflow chute 16 is an isosceles trapezoid. A boosting rotary blade 17 is arranged near the right side inside the inflow chute 16. The boosting rotary blade 17 is fixedly connected to the outer wall of the transmission shaft 15. An inflow port 11 is arranged at the top of the inflow chute 16. The inflow port 11 communicates with the vortex fan pressurizing chute 12 inside the pump housing 2. The vortex fan 13 has the same structure as the boosting rotary blade 17.

[0035] The base 7 is a rectangular base. Reinforcing ribs are arranged inside the base 7. The reinforcing ribs and the base 7 are of an integral structure. A mating installation groove is arranged inside the base 7 to facilitate the fixation of the flow collecting chute 5, the inflow chute 16 and the base 7.

[0036] Working method of the high-efficiency and high-pressure multi-stage pump: The hydraulic motor 10 rotates at a high speed to drive the transmission shaft 15 to rotate. The transmission shaft 15 drives the boosting rotary blade 17 and the vortex fan 13 to rotate rapidly. The boosting rotary blade 17 pushes the air flow inside the inflow chute 16 into the vortex fan pressurizing chute 12 at the rightmost end inside the pump housing 2.

[0037] Step 2: The vortex fan 13 inside the vortex fan pressurizing chute 12 at the rightmost end inside the pump housing 2 rotates rapidly, and pushes the air flow sequentially to the left. The air flow is compressed sequentially from right to left, increasing the compression ratio of the air flow. Finally, the air that has been pressurized step by step by the multi-stage vortex fan 13 is quickly discharged from the liquid outlet port 4 above the flow collecting chute 5.

[0038] This multi-stage pump body uses multi-stage vortex fans for step-by-step pressurization, which can greatly increase the pressurization of the liquid, has a high pressurization efficiency, and the structure of this booster pump is simple.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient and high-pressure multi-stage pump, comprising a multi-stage pump body (1), characterized in that: A base (7) is provided on the multi-stage pump body (1). Above the base (7), there is a pump housing (2). Inside the pump housing (2), there is a vortex fan pressurization groove (12). The adjacent vortex fan pressurization grooves are interconnected. Inside the vortex fan pressurization groove (12), there is a vortex fan (13). The vortex fan (13) is fitted and installed with the vortex fan pressurization groove (12). A transmission shaft (15) is horizontally arranged inside the vortex fan pressurization groove (12). The vortex fan (13) is fixedly installed with the transmission shaft (15). On one side surface of the vortex fan (13), there are pressurization rotating blades (18) and ventilation rotating blades (19). The pressurization rotating blades (18) and the ventilation rotating blades (19) are arranged alternately at intervals. The pressurization rotating blades (18), the ventilation rotating blades (19) and the vortex fan (13) are of an integral structure. In the center of the inside of the ventilation rotating blade (19), there is a ventilation port (20). The ventilation port (20) penetrates through the ventilation rotating blade (19). At one end of the pump housing (2), there is a flow collecting groove (5). At the other end of the pump housing (2), there is an inflow groove (16). At the top of the inflow groove (16), there is an inflow port (11). The inflow port (11) is communicated with the vortex fan pressurization groove (12) inside the pump housing (2). The flow collecting groove (5), the inflow groove (16) and the pump housing (2) are of an integral structure. On one side of the inflow groove (16), there is a hydraulic motor (10). The rotating shaft of the hydraulic motor (10) is fixedly connected with the end of the transmission shaft (15) by a coupling. At the top of the flow collecting groove (5), there is an outliquid port (4). When the transmission shaft (15) rotates, the air flow inside the inflow groove (16) is pushed and compressed from right to left and finally discharged quickly from the outliquid port (4).

2. The high-efficiency and high-pressure multistage pump according to claim 1, wherein: Reinforcing connection hoops (3) are equidistantly arranged on the outer wall of the pump housing (2). The reinforcing connection hoops (3) and the pump housing (2) are of an integral structure. The reinforcing screw is fitted and connected with the reinforcing connection hoop (3) on the outer wall of the pump housing (2). The two ends of the reinforcing screw are respectively fixedly connected with the screws on the outer walls of the inflow groove (16) and the flow collecting groove (5). On both sides of the bottom of the pump housing (2), there are fixed support members. The fixed support members are fixedly connected with the outer wall of the bottom of the pump housing (2). The fixed support members and the base (7) are fixedly connected by screws.

3. The high-efficiency and high-pressure multistage pump according to claim 1, characterized in that: On one side side wall of the flow collecting groove (5), there is a ring bearing (14). The outliquid port (4) and the flow collecting groove (5) are of an integral structure. On the outer wall of the flow collecting groove (5), there is a main shaft positioning end cover (6). The main shaft positioning end cover (6) is conical. The main shaft positioning end cover (6) is welded to the outer wall of the flow collecting groove (5). In the center of the inside of the main shaft positioning end cover (6), there is a ring bearing (14). One end of the transmission shaft (15) is fitted and installed with the ring bearing (14) in the center of the inside of the main shaft positioning end cover (6).

4. An efficient and high-pressure multi-stage pump according to claim 1, characterized in that: Near the right side inside the inflow groove (16), there is a boosting rotating blade (17). The boosting rotating blade (17) is fixedly connected with the outer wall of the transmission shaft (15). The vortex fan (13) has the same structure as the boosting rotating blade (17).

5. The high-efficiency and high-pressure multistage pump according to claim 1, characterized in that: A motor controller (9) is cooperatively provided on the hydraulic motor (10), and a fitting mounting seat is cooperatively provided between the bottom of the hydraulic motor (10) and the base (7).

6. The high-efficiency and high-pressure multistage pump according to claim 1, wherein: One side wall of the vortex fan supercharging groove (12) is a vertical groove wall, and the other side of the vortex fan supercharging groove (12) is a ramp groove body, and the ramp groove body forms an angle of 30° with the vertical direction. The inner wall of the vortex fan supercharging groove (12) is polished with a mirror finish.

7. An efficient and high-pressure multi-stage pump according to claim 1, characterized in that: The base (7) is a rectangular base, and reinforcing ribs are provided inside the base (7). The reinforcing ribs and the base (7) are of an integral structure, and a fitting mounting groove is provided inside the base (7).

8. A working method for an efficient and high-pressure multi-stage pump as described in claim 4, characterized in that: It includes the following steps: Step 1: The high-speed rotation of the hydraulic motor (10) drives the transmission shaft (15) to rotate. The transmission shaft (15) drives the booster rotating blades (17) and the vortex fan (13) to rotate rapidly. The booster rotating blades (17) push the air flow inside the inflow groove (16) into the vortex fan supercharging groove (12) at the rightmost end inside the pump housing (2). Step 2: The vortex fan (13) inside the rightmost vortex fan supercharging groove (12) rotates rapidly, and pushes the air flow to the left in sequence. The air flow is compressed in sequence from right to left, improving the compression ratio of the air flow. Step 3: Finally, the air that has been supercharged step by step by multiple stages of vortex fans (13) is quickly discharged from the liquid outlet port (4) above the manifold (5).

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