CN111779671B - Axial-flow eccentric peristaltic displacement pump for electric submersible pump - Google Patents
Axial-flow eccentric peristaltic displacement pump for electric submersible pump Download PDFInfo
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- CN111779671B CN111779671B CN202010408955.6A CN202010408955A CN111779671B CN 111779671 B CN111779671 B CN 111779671B CN 202010408955 A CN202010408955 A CN 202010408955A CN 111779671 B CN111779671 B CN 111779671B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
- F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of electric submersible pumps in the field of oil extraction, and particularly relates to an axial-flow eccentric peristaltic positive displacement pump for an electric submersible pump, which comprises: the rotor comprises a stator, a connecting pin, a baffle combination and a transmission combination, wherein the baffle combination comprises a head end plate, a tail end plate, a reversing cavity baffle, a gap baffle, a bearing sleeve B and a bearing sleeve A, the main shaft is connected with the eccentric shaft sleeve through the key, the shaft sleeve is sleeved on the eccentric shaft sleeve, the rotor is sleeved on the shaft sleeve, a sliding sheet rotating groove is in gap fit in a circular groove of the rotor, one end of the sliding sheet is matched in the sliding sheet rotating groove, and the other end of the sliding sheet is matched in an inner wall groove of the stator. The invention provides an axial flow eccentric creeping displacement pump for an electric submersible pump, which can pump crude oil with uniform flow transportation and no flow pulsation by adopting a cascade multi-section single-section pump and realizing eccentric creeping.
Description
Technical Field
The invention belongs to the technical field of electric submersible pumps in the field of oil extraction, and particularly relates to an axial-flow eccentric peristaltic displacement pump for an electric submersible pump.
Background
The prior art and the defects are as follows:
the traditional electric submersible pump has the defects of frequent axial and radial partial wear due to the polarization effect, weaker overall rigidity of the system, poorer stability in high-speed operation and frequent blockage. The electric submersible pump with a part of novel structures overcomes the defects, but has the defects of low efficiency, short lift and large power consumption.
The application number 2017204110851 patent discloses a novel fast-assembling peristaltic pump, including: the device comprises a base, a motor, an upper support frame, a wheel carrier, a plurality of rollers, a hose and a hose positioning pressing block. The motor is installed on the base, and the left end fixed connection of upper bracket and base, and form an installation space between the right-hand member of upper bracket and base. The upper end and the lower end of the wheel carrier are respectively pivoted on the upper supporting frame and the base and are contained in the installation space, and the wheel carrier is driven to rotate by a motor arranged below the wheel carrier. The gyro wheel is the formula of surroundingly installing on the wheel carrier, and the periphery of gyro wheel is located to the hose, and the right-hand member of base and the periphery that is located the hose are located to hose location briquetting, and wherein, the inboard of hose location briquetting is indent formula circular arc structure and cladding in the hose outside. The invention can effectively prevent the hose from abnormal abrasion caused by the up-and-down movement of the hose when the peristaltic pump works, prolongs the service life of the peristaltic pump, and has the advantages of simple structure and convenient disassembly and assembly. However, the peristaltic pump related to the patent is a fast-assembling simple peristaltic pump, and does not relate to the field of submersible axial flow displacement pumps. And the patent is primarily innovative to optimize the ease of hose replacement and to reduce wear.
The application number 201420865713 patent discloses a peristaltic pump and transfer pump, the peristaltic pump include the casing, rotate install in the pivot of casing, install in change epaxial several pair eccentric wheels, install in change epaxial first detection device, install in the second detection device of body, every pair eccentric wheel of group includes a N pair eccentric wheel unit, is formed with the contained angle of 360/N degrees between the centre of a circle of two adjacent pair eccentric wheel units and the axle center line, each install two wriggling pieces on the pair eccentric wheel unit, first detection device is equipped with the first detection position that corresponds a pair eccentric wheel unit, second detection device is equipped with and corresponds a pair eccentric wheel unit N second detection position. According to the invention, the first detection device is matched with the second detection device, so that the peristaltic pump is accurately controlled, the infusion speed of the infusion pump using the peristaltic pump is stably joined, the flow rate is stable, the infusion precision is effectively ensured, and the safety of the infusion pump is improved. This patent relates to infusion pumps in the medical device field, and although it has an innovative point in controlling the flow rate stability, it does not relate to the field of submersible pumps.
The patent application number 2017215514952 discloses a peristaltic pump driving mechanism and a peristaltic pump, and belongs to the technical field of peristaltic pumps. The peristaltic pump driving mechanism comprises a body, a driving assembly and a control assembly; the body comprises a middle frame assembly and a top cover assembly, the middle frame assembly comprises an accommodating cavity with two open ends, the two open ends of the middle frame assembly are respectively sealed by a bottom cover and the top cover assembly, the top cover assembly comprises an installation part and a display part, and the display part is convex relative to the installation part in the direction far away from the middle frame assembly; the driving assembly is positioned in the accommodating cavity and is used for being connected with the peristaltic pump head and driving the peristaltic pump head to work; the control assembly is located inside the body and electrically connected with the driving assembly. The peristaltic pump driving mechanism is simple in structure, the reserved installation positions of the control panel and the pump head are reasonably distributed, the peristaltic pump driving mechanism is convenient to install and detach, and the appearance attractiveness is improved. The peristaltic pump comprises the peristaltic pump driving mechanism, is attractive in appearance and reasonable in structural design, and improves the output efficiency of the peristaltic pump. The patent relates to the field of peristaltic pumps, but does not relate to the concept of cascade design.
Application number 2018217218248 discloses a miniature peristaltic pump, including gear motor, base, eccentric wheel, cylinder, hose and pump cover, the fixed axle sleeve of having installed on gear motor's the output shaft, gear motor's upper end install in the base, just the protruding upper end that stretches out the base of axle sleeve, the eccentric wheel is installed outside the axle sleeve, and the cylinder is fixed to be installed outside the eccentric wheel, the hose is installed in the pump cover, and the protruding pump cover that stretches out in both ends of hose outside, the pump cover buckle is on the base, just the hose card is held in between cylinder and the pump cover inner wall. The hose extruding machine provided by the invention has the advantages that the hose is extruded by driving the eccentric wheel and the rollers to perform deceleration movement through the deceleration motor, so that the small-flow fluid is conveyed, the market demand is met, and meanwhile, compared with the traditional structure of extruding the hose by a plurality of rollers, the hose extruding machine is simpler in structure and convenient to assemble and disassemble. However, the patent is only suitable for the field of small flow and micro structure, and does not relate to the field of the submersible electric pump, and does not consider the working conditions of high temperature, high pressure, sand content, long-time operation and cascade form and high volume efficiency requirement.
The patent data retrieval shows that the peristaltic pump structure applied at present has certain miniaturization and is suitable for small flow, and the peristaltic pump which runs at high speed for a long time, has sand-containing adaptability and large flow of oil, is high in volume efficiency, adopts a cascade conveying medium and requires high lift in the field of the submersible electric pump is not reported.
The difficulty and significance for solving the technical problems are as follows:
therefore, based on the problems, the axial flow eccentric creeping displacement pump for the submersible electric pump, which can pump crude oil with uniform flow transportation and no flow pulsation by adopting the cascaded multi-section single-section pump and realizing eccentric creeping, has important practical significance.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide an axial flow eccentric creeping displacement pump for an electric submersible pump which can pump crude oil with uniform flow transportation and no flow pulsation by adopting a cascade multi-section single-section pump and realizing eccentric creeping.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows:
an axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump, comprising: the transmission assembly comprises a main shaft, a key, an eccentric shaft sleeve, a rotor, a sliding piece rotating groove and a sliding piece;
the main shaft is connected with the eccentric shaft sleeve through the key, the shaft sleeve is sleeved on the eccentric shaft sleeve, the rotor is sleeved on the shaft sleeve, a sliding sheet rotating groove is in clearance fit in a circular groove of the rotor, one end of the sliding sheet is matched in the sliding sheet rotating groove, and the other end of the sliding sheet is matched in an inner wall groove of the stator;
the stator is arranged outside the transmission assembly and matched with the sliding sheet, and the connecting pin is connected with the stator and the head end plate, the tail end plate, the reversing cavity baffle and the gap baffle; the baffle plate combination is matched with two ends of the stator, the reversing cavity baffle plate and the clearance baffle plate are matched between the head end plate and the end surface of the stator, and the flow passage holes are symmetrically arranged.
The invention is suitable for working conditions of high-speed long-time operation and sand-containing oil, has higher efficiency and high lift, and can realize axial transmission of a conveying medium by being designed into an axial flow form.
The invention can also adopt the following technical scheme:
in the above axial flow eccentric peristaltic displacement pump for the submersible electric pump, further, an arc-shaped groove is formed on the circumference of the rotor, and the rotor and the inner cavity of the stator are in micro interference fit.
The rotor is made of oil-resistant and corrosion-resistant rubber with certain hardness and strength; the rotor with little interference fit is selected to the stator inner chamber, increases the leakproofness of complex, improves the volume efficiency.
In the above axial flow eccentric peristaltic displacement pump for the submersible electric pump, further, the sliding vane rotating groove is made of stainless steel, and the sliding vane rotating groove and the rotor are in micro interference fit.
The sliding sheet rotating groove and the rotor are in micro interference fit, so that the matching tightness is improved, and the abrasion is reduced.
In the above-mentioned eccentric formula displacement pump of creeping of axial compressor for oily electric pump of diving, it is further, the gleitbretter adopts rectangle strip, and it has through-hole off-load groove to open, and gleitbretter one end is tensile two cylindric locks, the gleitbretter chooses stainless steel material for use, the gleitbretter with the gleitbretter rotates the groove and selects little clearance fit, cylindric lock and stator cooperation.
In the above-mentioned eccentric formula displacement pump of wriggling of axial compressor for the submerged motor pump, further, the terminal surface department of clearance baffle opens the runner hole that unilateral semicircle annular horizontal direction business turn over medium, and baffle face department opens has the pinhole that link up, installs with the connecting pin cooperation, and the material chooses for use stainless steel.
In the above-mentioned eccentric formula displacement pump of wriggling of axial compressor for oil-submersible electric pump, further, switching-over chamber baffle terminal surface department opens the semicircle ring type flow path hole that has a perfect understanding, and another terminal surface opens the full open switching-over chamber that has the appropriate degree of depth, and baffle face department opens has the pinhole that link up, installs with the connecting pin cooperation, and the material chooses for use the stainless steel.
In the above-mentioned eccentric formula displacement pump of creeping of axial compressor for oily electric pump of diving, further, the terminal surface department of head end plate and terminal end plate is opened has to link up three-dimensional semicircle annular flow passage hole, and end plate face department opens has the blind pin hole, installs with the connecting pin cooperation, and the material chooses for use the stainless steel.
In conclusion, the invention has the following advantages and positive effects:
the invention adopts the cascaded multi-section single-section pump, can realize the pumping of crude oil with uniform flow transportation and no flow pulsation by eccentric peristalsis, has high efficiency and high lift, is suitable for high-speed long-time operation and sand-containing oil, and can realize the axial transmission of a conveying medium by being designed into an axial flow form.
Drawings
The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein only, and are not necessarily drawn to scale.
FIG. 1 is an exploded view of an embodiment of an axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump according to the present invention;
fig. 2-1 is a left side view of a rotor component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 2-2 is a front view of a rotor part of an embodiment of an axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 2-3 are isometric views of rotor components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
FIG. 3-1 is a left side view of a sliding vane rotary groove component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 3-2 is a front view of a sliding vane rotary groove component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 3-3 are isometric views of components of a sliding vane rotary groove of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
FIG. 4-1 is a left side view of a sliding vane component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 4-2 is a front view of a sliding piece part of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 4-3 are isometric views of sliding vane parts of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 5-1 is a front view of a clearance baffle component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 5-2 is a left side view of a gap baffle component of an embodiment of an axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 5-3 are top views of gap baffle components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 5-4 are isometric views of gap baffle components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
FIG. 6-1 is a front view of a reversing cavity baffle component of an embodiment of an axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump according to the present invention;
fig. 6-2 is a left side view of a reversing cavity baffle of an embodiment of the axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 6-3 are back views of reversing cavity baffle components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 6-4 are perspective views showing reversing cavity baffle members of an embodiment of an axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump in accordance with the present invention;
FIG. 7-1 is a front view of the head and end plate components of an embodiment of an axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump according to the present invention;
fig. 7-2 is a left side view of the head and end plate components of an embodiment of the axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 7-3 are top views of the head and end plate components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electric submersible pump according to the present invention;
fig. 7-4 are isometric views of the head and end plate components of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention;
fig. 8 is a schematic axial sectional view of an embodiment of an axial flow eccentric peristaltic displacement pump for an electrical submersible pump according to the present invention.
In the figure:
1. a first end plate; 2. a reversing cavity baffle; 3. a bearing bush A; 4. a gap baffle; 5. a main shaft; 6. A key; 7. an eccentric shaft sleeve; 8. a shaft sleeve; 9. a stator; 10. a connecting pin; 11. a rotor; 12. a sliding vane rotating groove; 13. sliding blades; 14. a bearing sleeve B; 15. a distal end plate; 16. a flow passage hole; 17. an arc-shaped groove; 18. a through hole unloading groove; 19. a cylindrical pin; 20. a commutation cavity; 21. and (4) pin control.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 8.
An axial flow eccentric peristaltic positive displacement pump for an electrical submersible pump, comprising: the stator assembly comprises a stator 9, a connecting pin 10, a baffle assembly and a transmission assembly, wherein the baffle assembly comprises a first-section end plate 1, a tail-end plate 15, a reversing cavity baffle 2, a gap baffle 4, a bearing sleeve B and a bearing sleeve A3, and the transmission assembly comprises a main shaft 5, a key 6, an eccentric shaft sleeve 7, a shaft sleeve 8, a rotor 11, a sliding piece rotating groove 12 and a sliding piece 13;
the main shaft is connected with the eccentric shaft sleeve through the key, the shaft sleeve is sleeved on the eccentric shaft sleeve, the rotor is sleeved on the shaft sleeve, a sliding sheet rotating groove is in clearance fit in a circular groove of the rotor, one end of the sliding sheet is matched in the sliding sheet rotating groove, and the other end of the sliding sheet is matched in an inner wall groove of the stator;
the stator is arranged outside the transmission assembly and matched with the sliding sheet, and the connecting pin is connected with the stator and the head end plate, the tail end plate, the reversing cavity baffle and the gap baffle; the baffle plate combination is matched with two ends of the stator, the reversing cavity baffle plate and the clearance baffle plate are matched between the head end plate and the end surface of the stator, and the flow passage holes 16 are symmetrically arranged.
The invention is suitable for working conditions of high-speed long-time operation and sand-containing oil, has higher efficiency and high lift, and can realize axial transmission of a conveying medium by being designed into an axial flow form.
An arc-shaped groove 17 is formed in the circumference of the rotor 11, and the rotor and the inner cavity of the stator are in micro interference fit.
The rotor is made of an oil-resistant and corrosion-resistant rubber material with certain hardness and strength; the rotor with little interference fit is selected to the stator inner chamber, increases the leakproofness of complex, improves the volume efficiency.
The sliding sheet rotating groove is made of stainless steel, and the sliding sheet rotating groove is in slight interference fit with the rotor.
The sliding sheet rotating groove and the rotor are in micro interference fit, the tightness of fit is improved, and abrasion is reduced.
The slip sheet adopts rectangular strip shape, is opened there is through-hole off-load groove 18, and slip sheet one end is tensile two cylindric locks 19, the slip sheet chooses stainless steel material for use, the slip sheet with the slip sheet rotates the groove and selects little clearance fit, cylindric lock and stator cooperation.
The end face of the clearance baffle is provided with a flow passage hole 16 for allowing media to enter and exit in a single-side semicircular annular horizontal direction, the surface of the clearance baffle is provided with a through pin hole 21 which is matched with a connecting pin for installation, and the material of the clearance baffle is stainless steel.
The baffle end face of the reversing cavity is provided with a through semicircular annular flow passage hole 16, the other end face of the reversing cavity is provided with a fully-opened reversing cavity 20 with proper depth, the baffle end face is provided with a through pin hole 21, the reversing cavity is matched with a connecting pin for installation, and stainless steel is selected as the material.
The end face of the first end plate and the end plate is provided with a through three-dimensional semicircular flow passage hole 16, the end plate face is provided with a blind pin hole 21 which is matched with a connecting pin for installation, and the material is stainless steel.
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
the first embodiment is as follows:
referring to fig. 1 and 8, an axial flow eccentric peristaltic positive displacement pump for an electric submersible pump includes: the structure comprises a baffle combination (a head end plate 1, a tail end plate 15, a reversing cavity baffle 2, a gap baffle 4 and a bearing sleeve 3), a transmission combination (a main shaft 5, a key 6, an eccentric shaft sleeve 7, a shaft sleeve 8, a rotor 11, a sliding piece rotating groove 12 and a sliding piece 13), a stator 9 and a connecting pin 10. The main shaft 5 of the transmission assembly is connected with the eccentric shaft sleeve 7 through the key 6; the shaft sleeve 8 is sleeved on the eccentric shaft sleeve 7; the rotor 11 is sleeved on the shaft sleeve 8; the sliding vane rotating groove 12 is in clearance fit in a circular groove of the rotor 11; one end of the sliding piece 13 is matched in the sliding piece rotating groove 12, and the other end of the sliding piece is matched in the inner wall groove of the stator 9. The stator 9 is arranged outside the transmission assembly and matched with the sliding sheet 13, and the connecting pin 10 is connected with the stator 9 and the head end plate 1 and the tail end plate 15; the baffle plate combination is matched with two ends of the stator 9, wherein the reversing cavity baffle plate 2 and the clearance baffle plate 4 are matched between the end plate 1 and the end surface of the stator 9, and the flow passage holes are symmetrically arranged. The invention is suitable for working conditions of high-speed long-time operation and sand-containing oil, has higher efficiency and high lift, and can realize axial transmission of a conveying medium by being designed into an axial flow form.
Referring to fig. 2, the rotor is axially provided with an arc-shaped groove and is made of an oil-resistant and corrosion-resistant rubber material with certain hardness and strength; the rotor and the stator inner cavity select micro interference fit, the matching tightness is increased, and the volume efficiency is improved.
Referring to fig. 3, the sliding vane rotating groove is made of stainless steel, and the sliding vane rotating groove and the rotor are in micro interference fit, so that the tightness of fit is improved, and abrasion is reduced.
Referring to fig. 4, the slip sheet is rectangular and is provided with a through hole unloading groove, one end of the slip sheet stretches two cylindrical pins, the slip sheet is made of stainless steel, the slip sheet and the slip sheet rotating groove are in micro-clearance fit, and the slip sheet round pins are matched with the stator.
Referring to fig. 5, the end surface of the gap baffle is provided with a single-side semi-circular horizontal medium inlet/outlet channel hole, and the surface of the baffle is provided with a through pin hole made of stainless steel.
Referring to fig. 6, a through semicircular flow passage hole is formed in the end face of the baffle plate of the reversing cavity, a fully-opened reversing cavity surface with a proper depth is formed in the other end face of the baffle plate, a through pin hole is formed in the baffle plate, and the material is stainless steel.
Referring to fig. 7, the end surfaces of the head and tail end plates are provided with through three-dimensional semicircular flow passage holes, blind pin holes are formed in the end plate surfaces, and the end plates are made of stainless steel.
The working process comprises the following steps: the pump drives the main shaft and the eccentric shaft sleeve to rotate by means of the motor shaft and simultaneously drives the rotor to do plane peristaltic motion in a pump body; the rotor, the stator and the baffle are combined to form two closed cavities. Along with the rotation of the motor, the volume of a closed cavity is continuously increased, and a flow port connected with the closed cavity sucks a medium; the volume of the other closed cavity is continuously reduced to discharge the medium. The purpose of pressurizing the conveying medium can be achieved by repeating the steps.
In conclusion, the invention can provide the axial flow eccentric creeping type displacement pump for the submersible electric pump for pumping the crude oil, which can realize uniform flow transportation and no flow pulsation by adopting the cascaded multi-section single-section pump and realizing the eccentric creeping.
The present invention has been described in detail with reference to the above examples, but the description is only for the preferred examples of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The utility model provides an oily charge pump of diving is with eccentric formula of creeping of axial compressor formula displacement pump which characterized in that: the axial flow eccentric peristaltic positive displacement pump for the electric submersible pump comprises: the transmission assembly comprises a main shaft, a key, an eccentric shaft sleeve, a rotor, a sliding piece rotating groove and a sliding piece;
the main shaft is connected with the eccentric shaft sleeve through the key, the shaft sleeve is sleeved on the eccentric shaft sleeve, the rotor is sleeved on the shaft sleeve, an arc-shaped groove is formed in the circumference of the rotor, a sliding sheet rotating groove is in clearance fit in the arc-shaped groove of the rotor, one end of the sliding sheet is matched in the sliding sheet rotating groove, the other end of the sliding sheet is matched in the inner wall groove of the stator, and the rotor and the inner cavity of the stator are in micro interference fit;
the stator is arranged outside the transmission combination and is matched with the sliding sheet, and the connecting pin is sequentially connected with the head end plate, the reversing cavity baffle, the gap baffle, the stator and the tail end plate; the baffle combination cooperates in the stator both ends, wherein switching-over chamber baffle with clearance baffle cooperate in head end plate with between the stator terminal surface, switching-over chamber baffle terminal surface department opens the semicircle ring type runner hole that has a perfect understanding, clearance baffle's terminal surface department opens the runner hole that has unilateral semicircle ring shape horizontal direction business turn over medium, switching-over chamber baffle and head end plate adjacent terminal surface open the full open switching-over chamber that has the appropriate degree of depth, head end plate and terminal end plate's terminal surface department opens and has link up three-dimensional semicircle ring type runner hole, and the runner pore pair is installed.
2. The axial-flow eccentric peristaltic positive displacement pump for the electric submersible pump according to claim 1, characterized in that: the sliding sheet rotating groove is made of stainless steel, and the sliding sheet rotating groove and the rotor are in micro interference fit.
3. The submersible electric pump of claim 1 with axial flow eccentric peristaltic displacement pump, characterized by: the slip sheet adopts rectangular strip, and it has through-hole off-load groove to open, and slip sheet one end tensile two cylindric locks, the slip sheet chooses stainless steel material for use, the slip sheet with the slip sheet rotates the groove and selects little clearance fit, cylindric lock and stator cooperation.
4. The axial-flow eccentric peristaltic positive displacement pump for the electric submersible pump according to claim 1, characterized in that: and the baffle surface of the gap baffle is provided with a through pin hole which is matched with the connecting pin for installation, and the material is stainless steel.
5. The axial-flow eccentric peristaltic positive displacement pump for the electric submersible pump according to claim 1, characterized in that: and a through pin hole is formed in the baffle surface of the reversing cavity baffle and is matched with the connecting pin for installation, and the material is stainless steel.
6. The axial-flow eccentric peristaltic positive displacement pump for the electric submersible pump according to claim 1, characterized in that: the end plate face of the first end plate and the end plate is provided with blind pin holes which are matched with connecting pins for installation, and the materials are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408955.6A CN111779671B (en) | 2020-05-14 | 2020-05-14 | Axial-flow eccentric peristaltic displacement pump for electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408955.6A CN111779671B (en) | 2020-05-14 | 2020-05-14 | Axial-flow eccentric peristaltic displacement pump for electric submersible pump |
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| Publication Number | Publication Date |
|---|---|
| CN111779671A CN111779671A (en) | 2020-10-16 |
| CN111779671B true CN111779671B (en) | 2023-02-24 |
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| CN202010408955.6A Active CN111779671B (en) | 2020-05-14 | 2020-05-14 | Axial-flow eccentric peristaltic displacement pump for electric submersible pump |
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Citations (8)
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| CN107218213A (en) * | 2017-08-03 | 2017-09-29 | 太原科技大学 | Swing vane-type pump |
| CN107965450A (en) * | 2017-10-17 | 2018-04-27 | 杭州电子科技大学 | A kind of rotor does not wear clarified water pump |
| CN109944795A (en) * | 2017-12-21 | 2019-06-28 | 王德忠 | The cavity volume circulation increase and decrease device that bent shaft-driven multistage blade separates |
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| CN206816492U (en) * | 2017-05-08 | 2017-12-29 | 王德忠 | Blade hydraulic pump or hydraulic motor |
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| JP2000120572A (en) * | 1998-10-12 | 2000-04-25 | Sanyo Electric Co Ltd | Rotary compressor |
| CN1276479A (en) * | 2000-03-17 | 2000-12-13 | 李辛沫 | Rotation-type compressor |
| CN101149052A (en) * | 2007-08-28 | 2008-03-26 | 西安交通大学 | Symmetrical form cavity pressurization and reclamation combination pump |
| JP2010255624A (en) * | 2009-03-31 | 2010-11-11 | Panasonic Corp | Rotary compressor |
| CN103321902A (en) * | 2013-06-07 | 2013-09-25 | 王德忠 | Double-rotor sealed cavity volume circulated increasing and decreasing device |
| CN107218213A (en) * | 2017-08-03 | 2017-09-29 | 太原科技大学 | Swing vane-type pump |
| CN107965450A (en) * | 2017-10-17 | 2018-04-27 | 杭州电子科技大学 | A kind of rotor does not wear clarified water pump |
| CN109944795A (en) * | 2017-12-21 | 2019-06-28 | 王德忠 | The cavity volume circulation increase and decrease device that bent shaft-driven multistage blade separates |
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|---|---|
| CN111779671A (en) | 2020-10-16 |
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