Horizontal split multi-stage pump

Abstract

The invention relates to the technical field of multi-stage pumps, and discloses a horizontal split multi-stage pump which comprises a multi-stage pump main body, a non-driving bearing end and a driving bearing end are arranged on the two sides of the multi-stage pump main body correspondingly, and a main shaft of the multi-stage pump main body penetrates through the non-driving bearing end and the driving bearing end; a coupler is arranged on the outer wall of the main shaft at the driving bearing end, the outer wall of the non-driving bearing end is sleeved with a protective cover, and a plurality of heat dissipation boxes are fixedly connected to the outer wall, close to the non-driving bearing end, of the protective cover at equal intervals. The fan blades in all the heat dissipation boxes can synchronously rotate, external air is sucked into the heat dissipation boxes and then exhausted through the exhaust valve, air flow rapidly flows on the surface of the non-driving bearing end, the non-driving bearing end can be rapidly cooled through cooperation with cooling liquid flowing in the spiral pipe, the cooling effect is greatly improved, and the service life of the non-driving bearing end is prolonged. And poor heat dissipation and overload operation of a non-driving bearing end are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of multistage pumps, in particular to a horizontal split multistage pump. Background Art

[0002] Multistage pump is an important fluid conveying equipment. It realizes high-pressure and high-lift fluid conveying by connecting multiple single-stage pumps in series. It has compact structure, strong corrosion resistance, stable operation, and is widely used in many fields.

[0003] In order to solve the problems of the existing technical level of the split multi-stage pump, such as the affected head, easy to have casting defects, poor sealing effect and unreliable operation, the Chinese patent with patent publication number CN205207276U discloses a horizontal split multi-stage pump structure, which adopts an arc transition flow channel that turns while running, and no right-angle turning flow channels are set from the throat outlet of the volute to the secondary suction chamber and the flow channels between each stage. The diameter of the first-stage impeller of the horizontal split multi-stage pump is the same as the diameter of the secondary impeller. The size of the mechanical seal cavity of the horizontal split multi-stage pump is smaller than the inner diameter of the pump body and pump cover, and no mechanical seal is used. The horizontal split multistage pump is sealed with a box, the shape and size of the first-stage upper and lower transition flow channels of the horizontal split multistage pump are different from the shape and size of the long transition upper and lower flow channels, the rotation system of the horizontal split multistage pump adopts angular contact ball bearings, and the sliding bearing adopts an intermediate support structure, but the non-driven bearing end of the multistage pump will generate a lot of heat when it is running, and the above-mentioned multistage pump drives the fan blades to rotate through the main shaft to dissipate the heat of the non-driven bearing end, but the wind blown by the fan blades will be mostly blocked, and only a small part will blow to the outer surface of the non-driven bearing end, so that the heat dissipation efficiency is low, which can easily lead to poor heat dissipation of the non-driven bearing end and overload operation.

[0004] In view of this, the present invention proposes a horizontal split multi-stage pump to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a horizontal split multi-stage pump.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A horizontally split multistage pump comprises a multistage pump body, a non-driven bearing end and a driven bearing end are respectively arranged on both sides of the multistage pump body, and the main shaft of the multistage pump body passes through the non-driven bearing end and the driven bearing end, a coupling is arranged on the outer wall of the main shaft on the driven bearing end, a protective cover is sleeved on the outer wall of the non-driven bearing end, and a plurality of heat sinks are fixedly connected at equal distances on the outer wall of the protective cover close to the non-driven bearing end, a heat absorption layer is arranged at the bottom of the heat sink, and the heat absorption layer is closely attached to the surface of the non-driven bearing end, a rotating shaft 1 is rotatably connected to the connection between the heat sink and the protective cover, and a pinion gear is fixedly connected to one end of the rotating shaft 1, a plurality of fan blades are fixedly connected to the other end of the rotating shaft 1 at equal distances, and an air inlet is arranged above the fan blades, a filter screen is arranged on the top of the air inlet, an exhaust port is arranged on the side of the heat sink away from the rotating shaft 1, a large gear is fixedly connected to the outer wall of the main shaft on the non-driven bearing end, and the large gear meshes with a plurality of small gears.

[0007] Furthermore, each heat dissipation box is sealed and rotatably connected to the top of a reciprocating screw, and a plurality of driving blades are fixedly connected to the bottom of the reciprocating screw at equal distances. The outer wall above the reciprocating screw is provided with a sliding sleeve that cooperates with and slides with the reciprocating screw, and a connecting plate is fixedly connected to the outer wall on one side of the sliding sleeve.

[0008] Furthermore, a storage box is arranged below the connecting plate, and coolant is stored inside the storage box, a spiral tube is arranged inside the heat sink, and one end of the spiral tube passes through the heat sink and is connected with the outer wall of the storage box close to the heat sink, the other end of the spiral tube passes through the heat sink and is connected with the outer wall of the storage box away from the heat sink, and a sliding rod is sealed and slidably connected on the outer wall of the storage box away from the heat sink.

[0009] Furthermore, one end of the sliding rod is fixedly connected to the connecting plate, and the other end of the sliding rod is fixedly connected to a piston plate, the piston plate is sealingly and slidingly connected to the inner wall of the storage box, and two through holes are symmetrically provided on the outer wall of the piston plate, and the inner walls of the through holes are fixedly connected to fixing columns, a sealing disk is provided under the fixing columns, and a plurality of connecting springs are fixedly connected between the sealing disk and the fixing columns, and under the action of the connecting spring, the sealing disk can seal the corresponding through hole.

[0010] Furthermore, a plurality of air inlet cylinders are fixedly connected at equal distances to the outer wall of the driving bearing end, and a second slide bar is sealingly and slidably connected to the outer wall of each air inlet cylinder on a side close to the coupling, and a magnetic plate is fixedly connected to the outer wall of the second slide bar on a side close to the coupling, and a plurality of fixed plates are fixedly connected to the outer wall of the main shaft on the driving bearing end at equal distances, and the outer walls of the fixed plates are inlaid with magnetic columns, and the magnetic columns and the magnetic plates repel each other.

[0011] Furthermore, a one-way air intake valve is provided on one side of the top of the air intake cylinder, and a one-way delivery pipe is provided on the other side of the top of the air intake cylinder, the outer wall on the other side of the second slide rod is fixedly connected with a piston plate, and the second piston plate is sealingly and slidingly connected to the inner wall of the air intake cylinder, and a connecting spring is fixedly connected between the second piston plate and the air intake cylinder.

[0012] Furthermore, a plurality of through holes 2 are provided on the outer wall of the piston plate 2, and a sealing disk 2 is provided on the side of the through hole 2 away from the slide rod 2. One end of the sealing disk 2 is hinged to the outer wall of the piston plate 2, and a hook spring is provided between the other side of the sealing disk 2 and the piston plate 2. Under the action of the hook spring, the sealing disk 2 seals the through hole 2.

[0013] Furthermore, one end of each of the plurality of one-way delivery pipes is connected to the same annular pipe, and a plurality of injection holes are provided on the outer wall of the annular pipe on one side facing the coupling.

[0014] Furthermore, four hollow columns are fixedly connected at equal distances on the outer wall of the annular tube toward the coupling, and a lifting column is slidably connected to one end of each hollow column close to the coupling, a ball is provided at one end of the lifting column close to the coupling, and the ball is in contact with the surface of the coupling, a pressure sensor is provided on the inner wall of the hollow column away from the lifting column, and a connecting spring three is fixedly connected between the pressure sensor and the lifting column, and the multiple pressure sensors can transmit pressure data to an external display device.

[0015] The beneficial effects of the present invention are: When the multi-stage pump body is running, the fan blades in each heat sink can rotate synchronously, sucking the external gas into the heat sink, and then discharging it through the exhaust valve, so that the airflow flows quickly on the surface of the non-driven bearing end, and cooperates with the coolant flowing in the spiral tube, so as to quickly cool the non-driven bearing end, greatly improving the cooling effect, and avoiding poor heat dissipation of the non-driven bearing end and overload operation.

[0016] Through the mutually repelling magnetic columns and magnetic plates, external gas can enter the air intake cylinder, and then the gas in the air intake cylinder flows into the one-way delivery pipe, and finally is ejected through the injection holes on the annular tube, thereby driving the bearing end and the coupling to dissipate heat.

[0017] The annular tube can be supported by the hollow column, the lifting column and the connecting spring to improve the stability of the annular tube, and the state of the coupling can be monitored by the pressure sensor. When the coupling is damaged, the staff can be alerted to avoid safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a horizontal split multi-stage pump proposed in Example 1; Figure 2This is a schematic structural diagram of a non-driving bearing end of a horizontal split multi-stage pump proposed in Example 1; Figure 3 A schematic diagram of the internal structure of a heat dissipation box of a horizontally split multi-stage pump proposed in Example 1; Figure 4 A schematic diagram of the cross-sectional structure of a storage box of a horizontal split multi-stage pump proposed in Example 1; Figure 5 This is a schematic diagram of the structure of a drive bearing end of a horizontal split multi-stage pump proposed in Example 2; Figure 6 This is a schematic diagram of the cross-sectional structure of an air intake cylinder of a horizontal split multi-stage pump proposed in Example 2; Figure 7 A horizontally opened multistage pump proposed in Example 2 Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 8 A schematic diagram of the annular pipe structure of a horizontal split multi-stage pump proposed in Example 3; Fig. 9 This is a schematic diagram of the cross-sectional structure of a hollow column of a horizontally split multi-stage pump proposed in Example 3.

[0019] In the figure: 1. multistage pump body; 2. protective cover; 3. non-drive bearing end; 4. drive bearing end; 5. coupling; 6. large gear; 7. shaft 1; 8. heat sink; 9. heat absorption layer; 10. spiral tube; 11. drive blade; 12. fan blade; 13. small gear; 14. air inlet; 15. filter screen; 16. reciprocating screw rod; 17. sliding sleeve; 18. connecting plate; 19. sliding rod 1; 20. storage box; 21. through hole 1; 22. piston plate 1; 23. fixing column ; 24. Connecting spring one; 25. Sealing disk one; 26. Fixed plate; 27. Magnetic column; 28. Intake cylinder; 29. ​​Slide rod two; 30. Magnetic plate; 31. Annular tube; 32. Injection hole; 33. Connecting spring two; 34. One-way delivery pipe; 35. One-way intake valve; 36. Piston plate two; 37. Hook spring; 38. Sealing disk two; 39. Through hole two; 40. Hollow column; 41. Ball; 42. Lifting column; 43. Connecting spring three; 44. Pressure sensor. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0021] Example 1, reference Figure 1-Figure 5A horizontally split multistage pump comprises a multistage pump body 1, a non-driving bearing end 3 and a driving bearing end 4 are respectively arranged on both sides of the multistage pump body 1, and the main shaft of the multistage pump body 1 passes through the non-driving bearing end 3 and the driving bearing end 4, a coupling 5 is arranged on the outer wall of the main shaft on the driving bearing end 4, a protective cover 2 is sleeved on the outer wall of the non-driving bearing end 3, and a plurality of heat sinks 8 are fixedly connected at equal distances on the outer wall of the protective cover 2 close to the non-driving bearing end 3, a heat absorption layer 9 is arranged at the bottom of the heat sink 8, and the heat absorption layer 9 is closely attached to the surface of the non-driving bearing end 3, a rotating shaft 7 is rotatably connected to the connection between the heat sink 8 and the protective cover 2, and a pinion gear 13 is fixedly connected to one end of the rotating shaft 7, a plurality of fan blades 12 are fixedly connected to the other end of the rotating shaft 7 at equal distances, an air inlet 14 is arranged above the fan blade 12, a filter screen 15 is arranged on the top of the air inlet 14, an exhaust port is arranged on the side of the heat sink 8 away from the rotating shaft 7, and the non-driving shaft The outer wall of the main shaft on the bearing end 3 is fixedly connected with a large gear 6, and the large gear 6 is meshed with multiple small gears 13. When the main shaft in the multi-stage pump body 1 rotates, the main shaft can drive the large gear 6 to rotate. Because the small gears 13 on the outer walls of each rotating shaft 7 are meshed with the large gear 6, when the large gear 6 rotates, the rotating shaft 7 can be quickly rotated by the small gears 13, and the rotating shaft 7 can make the fan blades 12 located in the heat sink 8 rotate quickly, so that the external air can be sucked into the heat sink 8 through the air inlet 14, and finally discharged through the exhaust port, which can make the air flow flow quickly in the heat sink 8. Because the heat absorption layer 9 at the bottom of the heat sink 8 is close to the surface of the non-driven bearing end 3, the heat can be quickly sucked into the heat sink 8, and finally the heat can be quickly discharged through the fast-flowing airflow, which can quickly cool the non-driven bearing end 3, greatly improve the cooling effect, and avoid poor heat dissipation and overload operation of the non-driven bearing end 3.

[0022] As a further solution in the present invention, each heat sink 8 is sealed and rotatably connected to the top of a reciprocating screw 16, and a plurality of driving blades 11 are fixedly connected to the bottom of the reciprocating screw 16 at equal distances. A sleeve 17 that cooperates with and slides with the reciprocating screw 16 is mounted on the outer wall above the reciprocating screw 16, and a connecting plate 18 is fixedly connected to the outer wall on one side of the sleeve 17. When the airflow flows in the heat sink 8, the reciprocating screw 16 can be rotated by the driving blades 11, thereby causing the sleeve 17 to slide back and forth on the reciprocating screw 16.

[0023] As a further solution of the present invention, a storage box 20 is arranged below the connecting plate 18, and coolant is stored in the storage box 20, a spiral tube 10 is arranged inside the heat sink 8, and one end of the spiral tube 10 passes through the heat sink 8 and is connected with the outer wall of the storage box 20 close to the heat sink 8, the other end of the spiral tube 10 passes through the heat sink 8 and is connected with the outer wall of the storage box 20 away from the heat sink 8, and a sliding rod 19 is sealed and slidably connected on the outer wall of the storage box 20 away from the heat sink 8.

[0024] As a further solution of the present invention, one end of the slide rod 19 is fixedly connected to the connecting plate 18, and the other end of the slide rod 19 is fixedly connected to a piston plate 22, the piston plate 22 is sealingly and slidingly connected to the inner wall of the storage box 20, and the outer wall of the piston plate 22 is symmetrically provided with two through holes 21, and the inner walls of the through holes 21 are fixedly connected to fixing columns 23, and sealing disks 25 are arranged under the fixing columns 23, and a plurality of connecting springs 24 are fixedly connected between the sealing disks 25 and the fixing columns 23, and under the action of the connecting springs 24, the sealing disks 25 can seal the corresponding through holes 21, because the connecting plate 18 on the sliding sleeve 17 is fixedly connected to the slide rod 19, so that the sliding sleeve 17 can synchronously move the slide rod 19 while moving back and forth. When the slide bar 19 reciprocates, the piston plate 22 inside the storage box 20 can move synchronously. When the piston plate 22 moves downward, the coolant in the space below it can be squeezed into the spiral tube 10, so that the coolant flows along the inside of the spiral tube 10 and finally enters the space above the piston plate 22. When the piston plate 22 moves upward, the coolant in the space above it can push open the sealing disk 25, so as to enter the space below the piston plate 22 through the through hole 21. This cycle can make the coolant continue to flow in the spiral tube 10, thereby absorbing the heat in the heat dissipation box 8, and the storage box 20 is exposed to the external environment, so that the coolant that absorbs heat can quickly dissipate heat.

[0025] Working principle: When the main shaft in the multi-stage pump body 1 rotates, the main shaft can drive the large gear 6 to rotate. Because the small gears 13 on the outer wall of each rotating shaft 7 are meshed with the large gear 6, when the large gear 6 rotates, the rotating shaft 7 can be quickly rotated through the small gear 13, and the rotating shaft 7 can make the fan blades 12 located in the heat sink 8 rotate quickly, so that the external air can be sucked into the heat sink 8 through the air inlet 14, and finally discharged through the exhaust port, so that the air flow can flow quickly in the heat sink 8. Because the heat absorption layer 9 at the bottom of the heat sink 8 is close to the surface of the non-driven bearing end 3, the heat can be quickly sucked into the heat sink 8, and finally the heat can be quickly discharged through the fast-flowing airflow. When the air flow flows in the heat sink 8, the reciprocating screw 16 can be rotated through the driving blades 11, so that the sliding sleeve 17 slides back and forth on the reciprocating screw 16. Because the connecting plate 18 on the sliding sleeve 17 is fixedly connected to the sliding rod 19, the sliding sleeve 17 reciprocates. When the piston plate 22 moves upward, the coolant in the space above it can push open the sealing disk 25, thereby entering the space below the piston plate 22 through the through hole 21. This cycle can enable the coolant to continuously flow in the spiral tube 10, thereby absorbing the heat in the heat dissipation box 8. The storage box 20 is exposed to the external environment, so that the coolant that absorbs the heat can quickly dissipate the heat, thereby quickly cooling the non-driven bearing end 3, greatly improving the cooling effect, and avoiding poor heat dissipation and overload operation of the non-driven bearing end 3.

[0026] Example 2, reference Figure 1-Figure 7 , a horizontal split multi-stage pump, compared with Example 1, on the basis of Example 1, a plurality of air inlet cylinders 28 are fixedly connected at equal distances on the outer wall of the driving bearing end 4, and a sliding rod 29 is sealed and slidably connected to the outer wall of each air inlet cylinder 28 on the side close to the coupling 5, and a magnetic plate 30 is fixedly connected to the outer wall of the sliding rod 29 on the side close to the coupling 5, and a plurality of fixed plates 26 are fixedly connected to the outer wall of the main shaft on the driving bearing end 4 at equal distances, and the outer walls of the fixed plates 26 are inlaid with magnetic columns 27, and the magnetic columns 27 and the magnetic plates 30 are mutually exclusive. When the main shaft rotates, it will drive the magnetic columns 27 on the plurality of fixed plates 26 to rotate, so that the magnetic columns 27 will intersect with the magnetic plates 30 with gaps.

[0027] As a further solution of the present invention, a one-way air intake valve 35 is provided on one side of the top of the air intake cylinder 28, and a one-way delivery pipe 34 is provided on the other side of the top of the air intake cylinder 28. A piston plate 236 is fixedly connected to the outer wall of the other side of the slide rod 29, and the piston plate 236 is sealingly and slidingly connected to the inner wall of the air intake cylinder 28. A connecting spring 233 is fixedly connected between the piston plate 236 and the air intake cylinder 28. Because the magnetic column 27 and the magnetic plate 30 repel each other, when the magnetic column 27 and the magnetic plate 30 intersect, under the action of the repulsive force, the length of the slide rod 29 extending into the air intake cylinder 28 becomes longer.

[0028] As a further solution of the present invention, a plurality of through holes 39 are provided on the outer wall of the piston plate 36, and a sealing disk 38 is provided on the side of the through hole 39 away from the slide rod 29, one end of the sealing disk 38 is hinged to the outer wall of the piston plate 36, and a hook spring 37 is provided between the other side of the sealing disk 38 and the piston plate 36. Under the action of the hook spring 37, the sealing disk 38 seals the through hole 39. At this time, the piston plate 36 can compress the connecting spring 33 to move, thereby squeezing the gas in the space where the connecting spring 33 is located into the one-way delivery pipe 34. At this time, the external gas can enter the space where the slide rod 29 is located through the one-way intake valve 35. When When the magnetic column 27 and the magnetic plate 30 do not intersect, the piston plate 236 is reset under the action of the rebound force of the connecting spring 233. At this time, the piston plate 236 can squeeze the gas in the space where the slide rod 29 is located. The squeezed gas can push open the sealing disk 238 on the through hole 239, so that the sealing disk 238 no longer seals the through hole 239. As a result, the gas in the space where the slide rod 29 is located enters the space where the connecting spring 23 is located through the through hole 239, and this cycle is repeated, so that the external gas can be continuously sucked into the air inlet cylinder 28, and then enter the one-way delivery pipe 34, so that the airflow flows quickly at the drive bearing end 4, greatly improving the heat dissipation efficiency of the drive bearing end 4.

[0029] As a further solution in the present invention, one end of multiple one-way delivery pipes 34 is connected to the same annular pipe 31, and multiple injection holes 32 are opened on the outer wall of the annular pipe 31 facing the coupling 5. The gas entering the one-way delivery pipe 34 will flow into the annular pipe 31, and finally the coupling 5 is blown and cooled through the multiple injection holes 32, thereby improving the service life of the coupling 5.

[0030] Working principle: when the main shaft rotates, it will drive the magnetic columns 27 on the multiple fixed plates 26 to rotate, so that the magnetic columns 27 will intersect with the magnetic plates 30 intermittently. Because the magnetic columns 27 and the magnetic plates 30 repel each other, when the magnetic columns 27 intersect with the magnetic plates 30, under the action of the repulsive force, the length of the slide bar 29 extending into the air intake cylinder 28 becomes longer. At this time, the piston plate 236 can compress the connecting spring 233 to move, thereby squeezing the gas in the space where the connecting spring 233 is located into the one-way delivery pipe 34. At this time, the external gas can enter the space where the slide bar 29 is located through the one-way intake valve 35. When the magnetic column 27 does not intersect with the magnetic plate 30, the piston plate 236 is reset under the action of the rebound force of the connecting spring 23. At this time, the piston Plate 2 36 can squeeze the gas in the space where the slide bar 29 is located, and the squeezed gas can push open the sealing disk 2 38 on the through hole 2 39, so that the sealing disk 2 38 no longer seals the through hole 2 39. As a result, the gas in the space where the slide bar 29 is located enters the space where the connecting spring 2 33 is located through the through hole 2 39, and this cycle is repeated, so that the external gas can be continuously sucked into the air intake cylinder 28, and then enter the one-way delivery pipe 34, so that the airflow flows quickly at the drive bearing end 4, greatly improving the heat dissipation efficiency of the drive bearing end 4, and the gas entering the one-way delivery pipe 34 will go to the annular tube 31, and finally blow air to cool the coupling 5 through multiple injection holes 32, thereby improving the service life of the coupling 5.

[0031] Example 3, reference Figure 1-Figure 9 , a horizontal split multi-stage pump, compared with embodiment 2, on the basis of embodiment 2, four hollow columns 40 are fixedly connected to the outer wall of the annular tube 31 facing the coupling 5 at equal distances, and each hollow column 40 is slidably connected to a lifting column 42 at one end close to the coupling 5, and a ball 41 is arranged at one end of the lifting column 42 close to the coupling 5, and the ball 41 is in contact with the surface of the coupling 5, a pressure sensor 44 is arranged on the inner wall of the hollow column 40 away from the lifting column 42, and a connecting spring 43 is fixedly connected between the pressure sensor 44 and the lifting column 42, and multiple pressure sensors 44 can transmit pressure data to an external display device, through the hollow column 40, the lifting column 42 and connecting spring three 43 can support the annular tube 31 and improve the stability of the annular tube 31; when the coupling 5 is excessively worn or damaged, the coupling 5 cannot maintain its own state during rotation, so that the axis line of the coupling 5 no longer coincides with the axis line of the main shaft of the multi-stage pump body 1. Because the ball 41 on the lifting column 42 is in close contact with the surface of the coupling 5, when the coupling 5 rotates, part of the lifting column 42 will compress the connecting spring three 43 and extend into the hollow column 40, so that the pressure data generated by the pressure sensor 44 is much greater than the pressure data of the coupling 5 in a normal state, so that the staff can be promptly prompted through the external display device to avoid safety accidents.

[0032] Working principle: The annular tube 31 can be supported by the hollow column 40, the lifting column 42 and the connecting spring three 43 to improve the stability of the annular tube 31; when the coupling 5 is excessively worn or damaged, the coupling 5 cannot maintain its own state during rotation, so that the axis line of the coupling 5 and the axis line of the main shaft of the multi-stage pump body 1 no longer coincide with each other. Because the ball 41 on the lifting column 42 is in close contact with the surface of the coupling 5, when the coupling 5 rotates, part of the lifting column 42 will compress the connecting spring three 43 and extend into the hollow column 40, so that the pressure sensor 44 generates pressure data much greater than the pressure data of the coupling 5 in a normal state, so that the staff can be promptly prompted through the external display device to avoid safety accidents.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A horizontal split multistage pump, comprising a multistage pump body (1), wherein a non-driving bearing end (3) and a driving bearing end (4) are respectively arranged on both sides of the multistage pump body (1), and a main shaft of the multistage pump body (1) passes through the non-driving bearing end (3) and the driving bearing end (4), and a coupling (5) is arranged on the outer wall of the main shaft on the driving bearing end (4), characterized in that: The outer wall of the non-driven bearing end (3) is sleeved with a protective cover (2), and a plurality of heat sinks (8) are fixedly connected at equal distances on the outer wall of the protective cover (2) close to the non-driven bearing end (3), the bottom of the heat sink (8) is provided with a heat absorption layer (9), and the heat absorption layer (9) is closely attached to the surface of the non-driven bearing end (3), the connection between the heat sink (8) and the protective cover (2) is rotatably connected to a rotating shaft (7), and one end of the rotating shaft (7) is fixedly connected to a pinion (13), the other end of the rotating shaft (7) is fixedly connected to a plurality of fan blades (12) at equal distances, and an air inlet (14) is provided above the fan blades (12), and a filter screen (15) is provided at the top of the air inlet (14), and an exhaust port is provided on the side of the heat sink (8) away from the rotating shaft (7), and a large gear (6) is fixedly connected to the outer wall of the main shaft on the non-driven bearing end (3), and the large gear (6) is meshed with the plurality of small gears (13); A plurality of air inlet cylinders (28) are fixedly connected at equal distances to the outer wall of the driving bearing end (4), and a second slide bar (29) is sealingly and slidably connected to the outer wall of each air inlet cylinder (28) on a side close to the coupling (5), and a magnetic plate (30) is fixedly connected to the outer wall of the second slide bar (29) on a side close to the coupling (5). A plurality of fixed plates (26) are fixedly connected at equal distances to the outer wall of the main shaft on the driving bearing end (4), and the outer walls of the fixed plates (26) are inlaid with magnetic columns (27), and the magnetic columns (27) and the magnetic plates (30) repel each other.

2. A horizontal split multistage pump according to claim 1, characterized in that: The top of each heat dissipation box (8) is sealed and rotatably connected to a reciprocating screw (16), and the bottom of the reciprocating screw (16) is fixedly connected to a plurality of driving blades (11) at equal distances, and the upper outer wall of the reciprocating screw (16) is sleeved with a sliding sleeve (17) that cooperates with and slides with the reciprocating screw (16), and the outer wall on one side of the sliding sleeve (17) is fixedly connected to a connecting plate (18).

3. A horizontal split multistage pump according to claim 2, characterized in that: A storage box (20) is arranged below the connecting plate (18), and coolant is stored in the storage box (20). A spiral tube (10) is arranged in the heat dissipation box (8), and one end of the spiral tube (10) passes through the heat dissipation box (8) and is connected to the outer wall of the storage box (20) close to the heat dissipation box (8), and the other end of the spiral tube (10) passes through the heat dissipation box (8) and is connected to the outer wall of the storage box (20) away from the heat dissipation box (8), and a sliding rod (19) is sealed and slidably connected to the outer wall of the storage box (20) away from the heat dissipation box (8).

4. A horizontal split multistage pump according to claim 3, characterized in that: One end of the slide rod (19) is fixedly connected to the connecting plate (18), and the other end of the slide rod (19) is fixedly connected to a piston plate (22). The piston plate (22) is sealingly slidably connected to the inner wall of the storage box (20), and the outer wall of the piston plate (22) is symmetrically provided with two through holes (21), and the inner walls of the through holes (21) are fixedly connected to fixing columns (23). A sealing disk (25) is provided below the fixing columns (23), and a plurality of connecting springs (24) are fixedly connected between the sealing disk (25) and the fixing columns (23). Under the action of the connecting springs (24), the sealing disk (25) can seal the corresponding through hole (21).

5. A horizontal split multistage pump according to claim 4, characterized in that: A one-way air intake valve (35) is provided on one side of the top of the air intake cylinder (28), and a one-way delivery pipe (34) is provided on the other side of the top of the air intake cylinder (28). A piston plate (36) is fixedly connected to the outer wall of the other side of the sliding rod (29), and the piston plate (36) is sealingly slidably connected to the inner wall of the air intake cylinder (28). A connecting spring (33) is fixedly connected between the piston plate (36) and the air intake cylinder (28).

6. A horizontal split multistage pump according to claim 5, characterized in that: A plurality of through holes (39) are provided on the outer wall of the piston plate (36), and a sealing disk (38) is provided on the side of the through hole (39) away from the slide rod (29). One end of the sealing disk (38) is hinged to the outer wall of the piston plate (36), and a hook spring (37) is provided between the other side of the sealing disk (38) and the piston plate (36). Under the action of the hook spring (37), the sealing disk (38) seals the through hole (39).

7. A horizontal split multistage pump according to claim 6, characterized in that: One end of each of the plurality of one-way delivery pipes (34) is connected to the same annular pipe (31), and a plurality of injection holes (32) are provided on an outer wall of the annular pipe (31) on a side facing the coupling (5).

8. A horizontal split multistage pump according to claim 7, characterized in that: Four hollow columns (40) are fixedly connected at equal distances on the outer wall of the annular tube (31) facing the coupling (5), and a lifting column (42) is slidably connected to one end of each hollow column (40) close to the coupling (5), a ball (41) is provided on one end of the lifting column (42) close to the coupling (5), and the ball (41) is in contact with the surface of the coupling (5), a pressure sensor (44) is provided on the inner wall of the hollow column (40) away from the lifting column (42), and a connecting spring (43) is fixedly connected between the pressure sensor (44) and the lifting column (42), and the plurality of pressure sensors (44) can transmit pressure data to an external display device.

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