Rubber sand-resistant structure for deep-well pump
By installing a rubber wear-resistant protective sleeve in the guide vane sleeve of the deep well pump, the problem of accelerated wear of the guide vane sleeve due to high-speed rotation and impurity friction is solved, achieving a longer service life and lower maintenance costs.
Patent Information
- Application Number
- CN202422334360.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The guide vane sleeves of existing deep well pumps accelerate wear due to high-speed rotation and impurity friction, resulting in the steel pipe wall being worn through and the product cannot be used.
A rubber sand-resistant structure for deep well pumps is designed, and the wear-resistant protective sleeve is fixedly connected to the vertical inner wall of the guide vane sleeve to prevent direct contact with the guide vane sleeve, thereby reducing the wear speed.
It effectively reduces the wear speed of the guide vane sleeve, improves the service life of the deep well pump, and can be replaced when the wear-resistant protective sleeve is worn, which is low in cost, avoiding the risk of the entire deep well pump being broken down and unusable.
Smart Images
Figure CN223004201U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of deep well pumps and relates to a rubber sand-resistant structure for deep well pumps. Background Technique
[0002] The biggest feature of a deep well pump is that the motor and the pump are made into one. It is a pump that is immersed in a groundwater well for pumping and transporting water, and is widely used in farmland drainage and irrigation, industrial and mining enterprises, urban water supply and drainage, and sewage treatment, etc. Before starting the pump, the suction pipe and the pump must be filled with liquid. After starting the pump, the impeller rotates at a high speed, and the liquid therein rotates with the blades. Under the action of centrifugal force, it flies away from the impeller and shoots outwards. The speed of the ejected liquid gradually slows down in the diffusion chamber of the pump casing, and the pressure gradually increases, and then flows out from the pump outlet and the discharge pipe. At this time, a vacuum low-pressure area without air and liquid is formed at the center of the blade due to the liquid being thrown to the surroundings. Under the action of the atmospheric pressure on the liquid pool surface, the liquid in the liquid pool flows into the pump through the suction pipe, and the liquid is continuously sucked up from the liquid pool and continuously flows out from the discharge pipe in this way.
[0003] The existing guide vane sleeve is made of a pure stainless steel pipe. During the operation of the deep well pump, the impeller rotates at a high speed, so that the fluid inside the deep well pump obtains kinetic energy. At this time, the fast-flowing fluid will rub against the inner steel pipe wall of the guide vane sleeve. Especially when the fluid contains a certain proportion of impurities, the wear of the steel pipe wall will accelerate. After long-term operation, the steel pipe wall will be worn through, resulting in the complete damage of the product and it cannot be used. Content of the Utility Model
[0004] The purpose of the utility model is to solve the above problems and provide a rubber sand-resistant structure for deep well pumps.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A rubber sand-resistant structure for a deep well pump, including a pump body. A rotating shaft is rotatably installed in the pump body. A plurality of impellers are fixedly connected to the shaft wall of the rotating shaft. A plurality of installation openings corresponding to the impellers are formed in the vertical side wall of the pump body, and a guide vane sleeve is fixedly embedded in the installation openings. The impellers are located inside the guide vane sleeve. A gap is provided between the impellers and the guide vane sleeve. A wear-resistant protection sleeve is fixedly connected to the vertical inner wall of the guide vane sleeve, and the specific material of the wear-resistant protection sleeve is rubber.
[0007] In the above rubber sand-resistant structure for a deep well pump, the pump body includes a housing. The guide vane sleeve is fixedly connected to the housing. A plurality of bearing mounting seats are fixedly connected to the vertical inner wall of the housing. The rotating shaft passes through the bearing mounting seats, and the shaft wall of the rotating shaft is rotationally connected to the inner wall of the bearing mounting seats through ball bearings.
[0008] In the above rubber anti-sand structure for deep well pumps, the impeller includes a rotating cylinder fixedly sleeved outside the rotating shaft. The inner wall of the rotating cylinder is clamped with the shaft wall of the rotating shaft. Two blades are symmetrically and fixedly connected to the vertical outer wall of the rotating cylinder, and the two blades are distributed in a V shape.
[0009] In the above rubber anti-sand structure for deep well pumps, the upper end of the housing is fixedly connected with a pump head. The lower end of the pump head is fixedly connected with a connecting piece, and the connecting piece is fixedly connected to the upper end of the housing. A plurality of mounting ear plates are fixedly connected to the vertical outer wall of the pump head, and pin holes are provided on the mounting ear plates.
[0010] In the above rubber anti-sand structure for deep well pumps, a support seat is fixedly connected to the vertical inner wall of the pump head. A through hole is provided on the support seat, and a roller bearing is fixedly connected in the through hole. The rotating shaft is rotatably connected to the support seat through the roller bearing.
[0011] In the above rubber anti-sand structure for deep well pumps, the specific material of the housing is stainless steel, and the material of the pump head is the same as that of the housing.
[0012] In the above rubber anti-sand structure for deep well pumps, diversion holes are provided on the blades, and the shape of the diversion holes is the same as that of the blades.
[0013] In the above rubber anti-sand structure for deep well pumps, a plurality of limiting ring plates are fixedly sleeved on the shaft wall of the rotating shaft, and the impeller is located between the two limiting ring plates.
[0014] In the above rubber anti-sand structure for deep well pumps, a plurality of baffles corresponding to the impeller are fixedly connected to the inner wall of the housing. The baffles are movably sleeved outside the rotating cylinder, and the baffles are located below the blades.
[0015] In the above rubber anti-sand structure for deep well pumps, a plurality of mounting blocks are fixedly connected to the outer wall of the housing near the bottom, and mounting holes are provided on the mounting blocks.
[0016] Compared with the existing technology, the advantages of the present utility model are as follows:
[0017] By providing a pump body, a rotating shaft, an impeller, a diffuser sleeve and a wear-resistant protection sleeve, when in use, when the deep well pump operates, the fluid inside the deep well pump will collide with the wear-resistant protection sleeve, so that direct contact with the diffuser sleeve can be avoided, thereby reducing the wear speed of the diffuser sleeve. Moreover, the wear-resistant protection sleeve made of rubber material can have strong wear resistance, which can improve the service life. And when the wear-resistant protection sleeve is worn, it can be replaced, and the cost is low, which will not cause the entire deep well pump to be completely penetrated and unable to be used, effectively improving the service life of the deep well pump.
[0018] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings
[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model.
[0020] Figure 2 is Figure 1 a schematic diagram of the connection structure between the middle guide vane sleeve and the wear-resistant protection sleeve.
[0021] Figure 3 is Figure 1 a schematic diagram of the connection structure between the impeller and the rotating shaft in the middle.
[0022] Figure 4 is Figure 1 a schematic diagram of the structure of the machine head in the middle.
[0023] Figure 5 is a schematic diagram of the structure of a deep well pump in the prior art
[0024] In the figure: 1, pump body; 2, rotating shaft; 3, impeller; 4, guide vane sleeve; 5, wear-resistant protection sleeve; 6, housing; 7, bearing mounting seat; 8, rotating cylinder; 9, blade; 10, machine head; 11, connecting piece; 12, mounting ear plate; 13, pin hole; 14, support seat; 15, diversion hole; 16, limit ring plate; 17, baffle; 18, mounting block; 19, mounting hole. Detailed Embodiments
[0025] The present utility model will be further described below with reference to the accompanying drawings.
[0026] As Figures 1-5 shown, a rubber anti-sand structure for a deep well pump includes a pump body 1, a rotating shaft 2 is rotatably installed in the pump body 1, a plurality of impellers 3 are fixedly connected to the shaft wall of the rotating shaft 2, a plurality of installation openings corresponding to the impellers 3 are opened on the vertical side wall of the pump body 1. When the deep well pump is in use, a power source drives the rotating shaft 2 to rotate, and the rotating shaft 5 drives the plurality of impellers 3 to rotate at a high speed in the pump body 1, thereby generating a centrifugal force. The plurality of impellers 3 drive the fluid in the deep well pump to rotate at a high speed, so as to be able to convey the fluid, so as to be able to continuously extract and convey the fluid, so as to achieve the purpose of pumping water. And a guide vane sleeve 4 is fixedly embedded in the installation opening, the impeller 3 is located in the guide vane sleeve 4, a gap is provided between the impeller 3 and the guide vane sleeve 4, and a wear-resistant protection sleeve 5 is fixedly connected to the vertical inner wall of the guide vane sleeve 4. The specific material of the wear-resistant protection sleeve 5 is rubber.
[0027] In the above embodiments, the wear-resistant protective sleeve 5 is provided to prevent the fluid from directly contacting the guide vane sleeve 4 of the deep-well pump, thereby preventing the guide vane sleeve 4 from being punctured, and the cost of replacement and maintenance is relatively low, effectively improving the service life of the deep-well pump.
[0028] The pump body 1 includes a housing 6, the guide vane sleeve 4 is fixedly connected to the housing 6, a plurality of bearing mounts 7 are fixedly connected to the vertical inner wall of the housing 6, the rotating shaft 2 passes through the bearing mounts 7, and the shaft wall of the rotating shaft 2 is rotationally connected to the inner wall of the bearing mounts 7 through ball bearings.
[0029] In this embodiment, the provided bearing mounts 7 can effectively support the rotating shaft 2, thereby improving the rotational stability of the rotating shaft 2 and reducing the wear rate of the rotating shaft 2 during operation.
[0030] The impeller 3 includes a rotating cylinder 8 fixedly sleeved outside the rotating shaft 2, the inner wall of the rotating cylinder 8 is clamped with the shaft wall of the rotating shaft 2, and two blades 9 are symmetrically and fixedly connected to the vertical outer wall of the rotating cylinder 8, and the two blades 9 are distributed in a V-shape.
[0031] In the above embodiments, the two blades 9 distributed in a V-shape can improve the use effect of the impeller 3, thereby improving the pumping efficiency of the deep-well pump.
[0032] The upper end of the housing 6 is fixedly connected with a pump head 10, the lower end of the pump head 10 is fixedly connected with a connecting piece 11, the connecting piece 11 is fixedly connected to the upper end of the housing 6, a plurality of mounting ear plates 12 are fixedly connected to the vertical outer wall of the pump head 10, and pin holes 13 are formed in the mounting ear plates 12.
[0033] In this embodiment, the provided mounting ear plates 12 and pin holes 13 can improve the convenience of installing the pump head 10, effectively improving the structural stability of the assembled entire deep-well pump.
[0034] A support seat 14 is fixedly connected to the vertical inner wall of the pump head 10, a through hole is formed in the support seat 14, and a roller bearing is fixedly connected in the through hole, and the rotating shaft 2 is rotationally connected to the support seat 14 through the roller bearing.
[0035] In this embodiment, the provided support seat 14 can support and reinforce the rotating shaft 2, thereby improving the rotational stability of the rotating shaft 2, reducing the wear rate between the rotating shaft 2 and other components, and improving the service life of the rotating shaft 2.
[0036] The specific material of the housing 6 is stainless steel, and the material of the pump head 10 is the same as that of the housing 6.
[0037] In this embodiment, the housing 6 and the machine head 10 made of stainless steel can improve the corrosion resistance of the deep well pump.
[0038] The blade 9 is provided with a diversion hole 15, and the shape of the diversion hole 15 is the same as that of the blade 9.
[0039] In the above embodiment, the provided diversion hole 15 can improve the smoothness of the fluid flow in the deep well pump.
[0040] A plurality of limiting ring plates 16 are fixedly sleeved on the shaft wall of the rotating shaft 2, and the impeller 3 is located between the two limiting ring plates 16.
[0041] In this embodiment, the provided limiting ring plates 16 can improve the rotational stability of the impeller 3.
[0042] A plurality of baffles 17 corresponding to the impeller 3 are fixedly connected to the inner wall of the housing 6. The baffle 17 is movably sleeved outside the rotating cylinder 8, and the baffle 17 is located below the blade 9.
[0043] In the above embodiment, the provided baffle 17 can reverse the flow of the fluid in the deep well pump, so that the fluid can smoothly enter the impeller 3, improving the smoothness of the operation of the deep well pump.
[0044] A plurality of mounting blocks 18 are fixedly connected to the outer wall of the housing 6 near the bottom, and mounting holes 19 are provided in the mounting blocks 18.
[0045] In the above embodiment, the provided mounting blocks 18 and mounting holes 19 can improve the convenience and stability of the fixed installation of the pump body 1.
[0046] The working principle of the present utility model is:
[0047] During use, when the deep well pump is running, the fluid inside the deep well pump will collide with the wear-resistant protective sleeve 5, so as to avoid direct contact with the guide vane sleeve 4, thereby reducing the wear speed of the guide vane sleeve 4. Moreover, the wear-resistant protective sleeve 5 made of rubber can have strong wear resistance, which can improve the service life. And when the wear-resistant protective sleeve 5 is worn, it can be replaced, and the cost is low, and it will not cause the entire deep well pump to be completely penetrated and unable to be used, effectively improving the service life of the deep well pump;
[0048] During use, the power source drives the rotating shaft 2 to rotate, and the rotating shaft 5 drives a plurality of impellers 3 to rotate at a high speed in the pump body 1, thereby generating a centrifugal force. The plurality of impellers 3 drive the fluid inside the deep well pump to rotate at a high speed, so as to convey the fluid, so as to continuously pump and convey the fluid, thereby achieving the purpose of pumping water.
[0049] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model.
[0050] Although terms such as 1. pump body; 2. rotating shaft; 3. impeller; 4. guide vane sleeve; 5. wear-resistant protection sleeve; 6. housing; 7. bearing mounting seat; 8. rotating cylinder; 9. blade; 10. machine head; 11. connecting piece; 12. mounting ear plate; 13. pin hole; 14. support seat; 15. diversion hole; 16. limiting ring plate; 17. baffle plate; 18. mounting block; 19. mounting hole are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present utility model, and interpreting them as any additional limitation is contrary to the spirit of the present utility model.
Claims
1. A rubber anti-sand structure for a deep well pump, comprising a pump body (1), characterized in that: A rotating shaft (2) is rotatably mounted in the pump body (1), a plurality of impellers (3) are fixedly connected to the shaft wall of the rotating shaft (2), a plurality of mounting openings corresponding to the impellers (3) are opened on the vertical side wall of the pump body (1), and a guide vane sleeve (4) is fixedly embedded in the mounting opening, the impeller (3) is located in the guide vane sleeve (4), a gap is provided between the impeller (3) and the guide vane sleeve (4), a wear-resistant protective sleeve (5) is fixedly connected to the vertical inner wall of the guide vane sleeve (4), and the specific material of the wear-resistant protective sleeve (5) is rubber.
2. The rubber anti-sand structure for deep well pump according to claim 1, characterized in that: The pump body (1) comprises a shell (6), the guide vane sleeve (4) is fixedly connected to the shell (6), a plurality of bearing mounting seats (7) are fixedly connected to the vertical inner wall of the shell (6), the rotating shaft (2) passes through the bearing mounting seats (7), and the shaft wall of the rotating shaft (2) is rotatably connected to the inner wall of the bearing mounting seat (7) via a ball bearing.
3. The rubber anti-sand structure for deep well pump according to claim 2, characterized in that: The impeller (3) comprises a rotating cylinder (8) fixedly sleeved outside the rotating shaft (2), the inner wall of the rotating cylinder (8) being clamped with the shaft wall of the rotating shaft (2), and two blades (9) being symmetrically fixedly connected to the vertical outer wall of the rotating cylinder (8), and the two blades (9) are distributed in an eight-shaped shape.
4. The rubber anti-sand structure for deep well pump according to claim 3, characterized in that: The upper end of the shell (6) is fixedly connected to a machine head (10), the lower end of the machine head (10) is fixedly connected to a connecting piece (11), the connecting piece (11) is fixedly connected to the upper end of the shell (6), and the vertical outer wall of the machine head (10) is fixedly connected to a plurality of mounting ear plates (12), and the mounting ear plates (12) are provided with pin holes (13).
5. The rubber anti-sand structure for deep well pump according to claim 4, characterized in that: The vertical inner wall of the machine head (10) is fixedly connected to a support seat (14), a through hole is provided on the support seat (14), and a roller bearing is fixedly connected in the through hole, and the rotating shaft (2) is rotatably connected to the support seat (14) via the roller bearing.
6. The rubber anti-sand structure for deep well pump according to claim 5, characterized in that: The specific material of the shell (6) is stainless steel, and the material of the head (10) is the same as that of the shell (6).
7. The rubber anti-sand structure for deep well pump according to claim 6, characterized in that: The blade (9) is provided with a flow guide hole (15), and the shape of the flow guide hole (15) is the same as that of the blade (9).
8. The rubber anti-sand structure for deep well pump according to claim 7, characterized in that: The shaft wall fixing sleeve of the rotating shaft (2) is provided with a plurality of limiting ring plates (16), and the impeller (3) is located between two limiting ring plates (16).
9. The rubber anti-sand structure for deep well pump according to claim 8, characterized in that: A plurality of baffles (17) corresponding to the impeller (3) are fixedly connected to the inner wall of the housing (6); the baffles (17) are movably sleeved outside the rotating cylinder (8); and the baffles (17) are located below the blades (9).
10. The rubber anti-sand structure for deep well pump according to claim 9, characterized in that: A plurality of mounting blocks (18) are fixedly connected to the outer wall of the shell (6) close to the bottom, and mounting holes (19) are provided on the mounting blocks (18).