Impeller wheel with long service life

Abstract

The utility model relates to an impeller guide wheel with long service life, which comprises a guide wheel, a rotating shaft rotatably mounted in the guide wheel and an impeller fixedly connected with the rotating shaft, the length direction of the rotating shaft extends up and down, the impeller further comprises a filter screen, and the filter screen is made of nickel base alloy. An oil storage cavity and an oil inlet groove are formed in the positions, above and below the impeller, of the guide wheel respectively, a plurality of matched flow channels are formed in the impeller, the upper portions of the matched flow channels are communicated with the oil storage cavity, and the lower portions of the matched flow channels are communicated with the oil inlet groove. And the upward projection of the oil inlet groove falls on the filter screen. According to the impeller guide wheel with the long service life, solid particles in petroleum entering the guide wheel can be intercepted by the filter screen, and then the solid particles are prevented from entering the impeller and the oil storage cavity.

Description

Technical Field

[0001] The utility model relates to a vane impeller, in particular to a vane impeller with a long service life. Background Art

[0002] When people extract oil, they usually extract the oil from below the ground through a submersible oil pump. The most core component of the submersible oil pump is the vane impeller, which includes a rotating shaft, an impeller, and a guide wheel. The impeller is arranged on the outer wall of the rotating shaft, and the bottom of the rotating shaft is rotatably connected to the bottom of the guide wheel. A plurality of flow guiding grooves are evenly arranged at intervals along the circumferential direction at the bottom of the guide wheel. By driving the rotating shaft through an external processor, the rotating shaft drives the impeller to rotate, so that the pressure inside the guide wheel is lower than the pressure outside the guide wheel, and the oil outside the guide wheel enters the guide wheel through the flow guiding grooves, thereby extracting the oil.

[0003] However, this vane impeller with flow guiding grooves on the impeller cannot effectively block solid particles in the oil from entering the impeller, the guide wheel, and the shaft sleeve connected to the rotating shaft. These solid impurities will gradually accumulate and increase the friction between the impeller, the guide wheel, and the rotating shaft, resulting in increased wear and thus shortening the service life of the entire vane impeller system.

[0004] Therefore, how to extend the service life of the vane impeller has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a vane impeller with a long service life, in which solid particles in the oil entering the guide wheel can be intercepted by a filter screen, thereby preventing the solid particles from entering the impeller and the oil storage cavity.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: It includes a guide wheel, a rotating shaft rotatably installed in the guide wheel, and an impeller fixedly connected to the rotating shaft. The length direction of the rotating shaft extends vertically. It further includes a filter screen. The impeller is made of nickel-based alloy. Oil storage cavities and oil inlet grooves are respectively arranged above and below the guide wheel relative to the impeller. A plurality of matching flow channels are arranged on the impeller. The upper part of each matching flow channel communicates with the oil storage cavity, and the lower part communicates with the oil inlet groove. The filter screen is located in the guide wheel and is detachably connected to the guide wheel. The upward projection of the oil inlet groove falls on the filter screen.

[0007] The utility model is further arranged as follows: The guide wheel includes a detachably connected upper installation section and a lower installation section. The oil inlet groove and the impeller are both located on the lower installation section, and the oil storage cavity is located in the upper installation section.

[0008] The utility model is further arranged as follows: It further includes a plurality of bolts. The upper installation section protrudes downward to form a matching ring. The matching ring is inserted into the lower installation section, and each bolt is inserted into the lower installation section and is in threaded cooperation with the matching ring.

[0009] The present utility model is further configured such that: the oil inlet groove is provided with a reduced diameter from top to bottom.

[0010] The present utility model is further configured such that: the rotating shaft includes a disassembly and assembly section for inserting the impeller, the disassembly and assembly section is made of a material that is prone to deformation, and the disassembly and assembly section is provided with limiting insertion blocks protruding in the circumferential direction, and each limiting insertion block is respectively inserted into the impeller.

[0011] The present utility model is further configured such that: each of the limiting insertion blocks is provided in a trapezoidal shape with a width that becomes narrower from the inside to the outside in the radial direction of the disassembly and assembly section.

[0012] The present utility model is further configured such that: the guide wheel further includes a support seat, the circumference of the support seat abuts against the inner wall of the guide wheel, and the lower end surface of the impeller abuts against the upper end surface of the support seat.

[0013] The present utility model is further configured such that: the support seat protrudes upwards and is provided with a plurality of positioning insertion blocks made of a material that is prone to deformation, each of the positioning insertion blocks includes an insertion section and a limiting section with a width greater than the corresponding insertion section, and each of the limiting sections is provided with a mating groove penetrating therethrough. The filter screen is provided with insertion grooves corresponding to each insertion section, the width of each insertion groove is greater than the insertion section and less than the limiting section, and each of the limiting sections is respectively located above the corresponding insertion section and abuts against the upper end surface of the filter screen.

[0014] By adopting the above technical solutions, 1. Since the impeller is made of nickel-based alloy, the strength of the impeller can be improved, thereby improving the service life of the impeller; 2. Therefore, when this part of the petroleum flowing through the oil inlet groove and flowing into the mating channel passes through the filter screen, the solid particles in the petroleum at this time can be intercepted by the filter screen, and then enter each mating flow channel and flow into the oil storage cavity, thereby preventing the solid particles from entering the impeller and causing wear and damage to the internal structure of the guide wheel and improving the purity of the petroleum. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is an assembly drawing of the specific embodiment of the present utility model;

[0017] Figure 2 It is a sectional view of the present utility model;

[0018] Figure 3It is a sectional view of another angle of the present utility model;

[0019] Figure 4 It is an exploded view of the present utility model;

[0020] Figure 5 is Figure 2 an enlarged view of A in

[0021] Figure 6 is Figure 4 an enlarged view of B in

[0022] Figure 7 is Figure 4 an enlarged view of C in

[0023] Figure 8 is Figure 4 an enlarged view of D in

[0024] In the figure: 1 - guide wheel, 11 - oil storage cavity, 12 - oil inlet groove, 13 - upper mounting section, 131 - mating ring, 14 - lower mounting section, 15 - support seat, 151 - positioning plug, 1511 - inserting section, 1512 - limiting section, 15121 - mating groove;

[0025] 2 - rotating shaft, 21 - disassembly and assembly section, 211 - limiting plug;

[0026] 3 - impeller, 31 - mating flow channel;

[0027] 4 - filter screen, 41 - inserting groove. Specific embodiments

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

[0029] Such as Figures 1-8As shown in the figure, the utility model discloses a vane impeller with a long service life, which includes an impeller 1, a rotating shaft 2 rotatably installed in the impeller 1, and an impeller 3 fixedly connected to the rotating shaft 2. The length direction of the rotating shaft 2 extends vertically. The rotating shaft 2 is connected to a motor (this is the prior art and not shown in the figure). During oil production, the motor is started to drive the rotating shaft 2 to rotate. The rotating shaft 2 drives the impeller 3 to rotate. The rotating impeller 3 makes the air pressure inside the impeller 1 less than the external air pressure, so that the external oil passes through the impeller 1 under the action of air pressure. It also includes a filter screen 4. The impeller 3 is made of nickel-based alloy. The impeller 1 is provided with an oil storage cavity 11 and an oil inlet groove 12 above and below the impeller 3 respectively. The impeller 3 is provided with a number of matching flow channels 31. The upper part of each matching flow channel 31 communicates with the oil storage cavity 11 and the lower part communicates with the oil inlet groove 12. The filter screen 4 is located inside the impeller 1 and is detachably connected to the impeller 1 by bolts, buckles and other means. The upward projection of the oil inlet groove 12 falls on the filter screen 4. 1. Since the impeller 3 is made of nickel-based alloy, the strength of the impeller 3 can be improved, and thus the service life of the impeller 3 can be extended. 2. Therefore, when the part of the oil flowing through the oil inlet groove 12 to the matching channel passes through the filter screen 4, the solid particles in the oil can be intercepted by the filter screen 4, and then enter each matching flow channel 31 and flow into the oil storage cavity 11, thus preventing the solid particles from entering the impeller 3 and causing wear and damage to the internal structure of the impeller 1 and improving the purity of the oil.

[0030] Among them, the impeller 1 includes a detachably connected upper mounting section 13 and a lower mounting section 14. The oil inlet groove 12 and the impeller 3 are both located on the lower mounting section 14, and the oil storage cavity 11 is located inside the upper mounting section 13. Since the upper mounting section 13 and the lower mounting section 14 are detachably connected, if the upper mounting section 13 or the lower mounting section 14 is worn, the upper mounting section 13 can be taken out and replaced or the lower mounting section 14 can be removed by separating the upper mounting section 13 from the lower mounting section 14.

[0031] Among them, it also includes a number of bolts (not shown in the figure). The upper mounting section 13 protrudes downward with a matching ring 131. The matching ring 131 is inserted into the lower mounting section 14. Each bolt is inserted into the lower mounting section 14 and is threadedly matched with the matching ring 131. After the matching ring 131 of the upper mounting section 13 is inserted into the lower mounting section 14, the relative positions of the upper mounting section 13 and the lower mounting section 14 are determined. Then, after each bolt is inserted into the lower mounting section 14 and threadedly matched with the matching ring 131, the upper mounting section 13 and the lower mounting section 14 can be fixed. By rotating each bolt in the reverse direction, each bolt can be taken out between the upper mounting section 13 and the matching ring 131, and the upper mounting section 13 and the lower mounting section 14 can be separated, so as to clean and replace the upper mounting section 13 or the lower mounting section 14.

[0032] Preferably, the oil inlet groove 12 is provided with a reduced opening from top to bottom. Since the bottom diameter of the oil inlet groove 12 is the smallest, before the petroleum enters the oil inlet groove 12, the part of the particulate matter with a diameter larger than the bottom of the oil inlet groove 12 will be directly intercepted outside the guide wheel 1 because it cannot enter the oil inlet groove 12, thereby realizing the preliminary screening of the petroleum entering the guide wheel 1.

[0033] In addition, the rotating shaft 2 includes a disassembly and assembly section 21 for inserting the impeller 3. The disassembly and assembly section 21 is made of a material that is prone to deformation, such as rubber. The disassembly and assembly section 21 is provided with a limiting insertion block 211 protruding in the circumferential direction. Each limiting insertion block 211 is inserted into the impeller 3. Since a number of limiting insertion blocks 211 are arranged circumferentially on the disassembly and assembly section 21 and it is made of a material that is prone to deformation, before inserting the impeller 3 downward onto the rotating shaft 2, it is necessary to deform the disassembly and assembly section 21 inward. Then, when the impeller 3 is in the position of the disassembly and assembly section 21, the force applied to the disassembly and assembly section 21 is released, and each limiting insertion block 211 is inserted into the impeller 3 to realize the connection between the impeller 3 and the disassembly and assembly section 21. At this time, the impeller 3 cannot rotate or move up and down relative to the disassembly and assembly section 21, so that the two are stably connected. Therefore, during the process of starting the motor to drive the rotating shaft 2 to rotate, the impeller 3 can rotate accordingly; when it is necessary to remove the impeller 3 for maintenance, by applying an inward force to each limiting insertion block 211 to separate it from the insertion position of the impeller 3, and then applying an upward force to the impeller 3, the impeller 3 can be separated from the disassembly and assembly section 21.

[0034] Preferably, each of the limiting insertion blocks 211 is arranged in a trapezoidal shape with a width that becomes narrower from the inside to the outside along the radial direction of the disassembly and assembly section 21. Since the outermost width of each limiting insertion block 211 is the narrowest, and when the impeller 3 is rotated onto the disassembly and assembly section 21, the outermost sides of each limiting insertion block 211 first insert into the impeller 3. Therefore, each limiting insertion block 211 arranged in a trapezoidal shape with a width that becomes narrower from the inside to the outside can be inserted into the impeller 3 more smoothly.

[0035] In addition, the guide wheel 1 further includes a support seat 15. The circumference of the support seat 15 abuts against the inner wall of the guide wheel 1, and the lower end surface of the impeller 3 abuts against the upper end surface of the support seat 15. Since the upper end surface of the support seat 15 abuts against the lower end of the impeller 3, the support seat 15 can provide a supporting effect for the impeller 3 and prevent the impeller 3 from colliding with the support seat 15 when it continues to move downward. Therefore, the support seat 15 can facilitate the determination of the positions of the impeller 3 and the disassembly and assembly section 21.

[0036] Among them, the support seat 15 is provided with a plurality of positioning plugs 151 made of rubber or other easily deformable materials protruding upward, each of the positioning plugs 151 includes an insertion section 1511 and a limiting section 1512 with a width greater than the corresponding insertion section 1511, and each limiting section 1512 is penetrated by a matching groove 15121, and the filter screen 4 is provided with an insertion groove 41 corresponding to each insertion section 1511, and the width of each insertion groove 41 is greater than the insertion section 1511 and smaller than the limiting section 1512, and each limiting section 1512 is respectively located above the corresponding insertion section 1511 and against the upper end surface of the filter screen 4. Since each positioning plug 151 is made of a material that is easily deformable, The limiting section 1512 is made of a material, so by bending upward the part of the limiting section 1512 located above the matching groove 15121, the limiting section 1512 of the positioning plug 151 can be deformed. When the limiting section 1512 can completely pass through the corresponding insertion groove 41, the filter screen 4 can be moved upward to separate the filter screen 4 from the support seat 15 and then clean the particulate matter attached to the filter screen 4. When the limiting section 1512 is bent again so that it can completely pass through the matching groove 15121, the filter screen 4 can be moved downward to complete the relative position determination with the support seat 15, and then the limiting section 1512 is released so that it is against the support seat 15, so that the filter screen 4 can be stably located on the support seat 15.

[0037] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vane impeller with a long service life, comprising an impeller, a rotating shaft rotatably installed in the impeller, and an impeller fixedly connected to the rotating shaft, wherein the length direction of the rotating shaft extends vertically, and is characterized in that: It further includes a filter screen. The impeller is made of nickel-based alloy. An oil storage cavity and an oil inlet groove are respectively arranged above and below the guide wheel. A number of matching flow channels are arranged on the impeller. The upper part of each matching flow channel is communicated with the oil storage cavity and the lower part is communicated with the oil inlet groove. The filter screen is located inside the guide wheel and is detachably connected to the guide wheel. The upward projection of the oil inlet groove falls on the filter screen.

2. The long-service-life vane impeller according to claim 1, wherein: The guide wheel includes a detachably connected upper mounting section and a lower mounting section. The oil inlet groove and the impeller are both located on the lower mounting section, and the oil storage cavity is located inside the upper mounting section.

3. The long service life blade impeller according to claim 2, wherein: It further includes a number of bolts. The upper mounting section protrudes downward to form a matching ring. The matching ring is inserted into the lower mounting section, and each bolt is inserted into the lower mounting section and threadedly cooperates with the matching ring.

4. A long-service-life blade impeller according to claim 1, characterized in that: The oil inlet groove is arranged with a reduced diameter from top to bottom.

5. The long-service-life blade impeller according to claim 4, characterized in that: The rotating shaft includes a disassembly and assembly section inserted into the impeller. The disassembly and assembly section is made of a material that is prone to deformation. The disassembly and assembly section protrudes circumferentially to form limiting insertion blocks, and each limiting insertion block is respectively inserted into the impeller.

6. The long-service-life blade impeller according to claim 5, characterized in that: Each of the limiting insertion blocks is arranged in a trapezoidal shape with a width that becomes narrower from the inside to the outside along the radial direction of the disassembly and assembly section.

7. The long-service-life blade impeller according to claim 1, characterized in that: The guide wheel further includes a support seat. The circumference of the support seat abuts against the inner wall of the guide wheel, and the lower end face of the impeller abuts against the upper end face of the support seat.

8. The long service life blade impeller according to claim 7, characterized in that: The support seat protrudes upward to form a number of positioning insertion blocks made of a material that is prone to deformation. Each positioning insertion block includes an insertion section and a limiting section with a width greater than the corresponding insertion section. A matching groove is penetrated through each limiting section. The filter screen is provided with insertion grooves corresponding to each insertion section. The width of each insertion groove is greater than the insertion section and less than the limiting section. Each limiting section is respectively located above the corresponding insertion section and abuts against the upper end face of the filter screen.

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