CN103670999B - A kind of piston valving double-action linear electric motor drive reciprocating pump - Google Patents
A kind of piston valving double-action linear electric motor drive reciprocating pump Download PDFInfo
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- CN103670999B CN103670999B CN201310751090.3A CN201310751090A CN103670999B CN 103670999 B CN103670999 B CN 103670999B CN 201310751090 A CN201310751090 A CN 201310751090A CN 103670999 B CN103670999 B CN 103670999B
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Abstract
The invention discloses a kind of piston valving double-action linear electric motor and drive reciprocating pump, comprise housing, two linear electric motor, four plungers and four cylinder barrels; Two linear electric motor and four cylinder barrels are all fixed in housing, and housing has pump discharge and Pump Suction Nozzle, plunger is equal with the length of cylinder barrel.When the present invention works, linear motor rotor pulls or promotes plunger iterative motion, completes and sucks liquid and press juice body action, the motion difference four/one-period of two linear motor rotors; Linear motor rotor to-and-fro motion one completes a work cycle back and forth.The present invention is by piston valving, and compare the linear electric motor reciprocating pump of Flat valve form, can not be subject to the impact of flow-distributing valve hysteresis effect, pressure pulsation and flow pulsation significantly reduce.The present invention obtains longer than the plunger design in the plunger pump of revolution driving, and then on the plunger of straight reciprocating motion, design longer clearance seal length, effectively can reduce leakage, improves volumetric efficiency.
Description
Technical field
The invention belongs to straight line directly driving type pump class, be specifically related to a kind of piston valving double-action linear electric motor and drive reciprocating pump, be applicable to pumps hydraulic oil, seawater, tap water or other liquid, can be used as variable displacement pump and use, be specially adapted to abyssal environment.
Background technique
Along with the development of linear electric motor and linear drives control technique, linear electric motor drive and more and more apply in Fluid-transmission control unit and system.Electric energy is directly changed into the mechanical energy of straight line motion by linear electric motor, load is directly connected with the mover of motor, do not need the intermediate conversion mechanism that rotation-straight line motion is changed, as ball screw etc., because this eliminating the harmful effects such as the inertia of intermediate transmission link, gap, delayed, vibration.Linear electric motor driving acceleration is large, precision is high, speed is fast, be easy to control.Linear electric motor drive reciprocating plunger pump to apply in petroleum machinery, and its structure is simple, stroke is long, efficiency is high.But existing linear electric motor drive reciprocating pump generally to adopt double-action three linear electric motor of Flat valve form back and forth to drive or the reciprocal drive form of two linear electric motor.Due to the impact of the factor such as choke-out volume in the inertia of flow-distributing valve and plunger case chamber, there is inharmonious phenomenon between the motion of spool and the motion of plunger, cause the delayed of flow-distributing valve.After the superposition of each plunger head pressure, can interact each delivery valve normal operation, thus affect the change of plunger cavity internal pressure, causes larger pressure pulsation and flow pulsation.The piston valving plunger pump of existing revolution drive-type at present, volumetric efficiency is lower than Flat valve plunger pump, and reason is that the piston valving plunger pump seal length that revolution drives is short, owing to being clearance seal, therefore leaks more serious when pressure increase.
In sum, existing linear electric motor drive reciprocating plunger pump to adopt Flat valve, and pressure pulsation and flow pulsation are very large, and existing piston valving plunger pump is revolution driving, because of plungers length restriction, gap sealed length is short, leak serious during pressure increase, volumetric efficiency is low.
Summary of the invention
For solving the problems referred to above that prior art exists, the present invention will design and a kind ofly can reduce pressure pulsation and flow pulsation and the piston valving double-action linear electric motor improving volumetric efficiency drive reciprocating pump.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of piston valving double-action linear electric motor drive reciprocating pump, comprise housing, two linear electric motor, four plungers and four cylinder barrels; Two described linear electric motor and four cylinder barrels are all fixed in housing, and housing has pump discharge and Pump Suction Nozzle, described plunger is equal with the length of cylinder barrel;
Two described linear electric motor are the first linear electric motor and the second linear electric motor, four described cylinder barrels are the first left cylinder barrel, the first right cylinder barrel, the second left cylinder barrel and the second right cylinder barrel, and four described plungers are the first left plunger, the first right plunger, the second left plunger and the second right plunger; The left and right two ends of the mover of the first described linear electric motor respectively plunger left with first are fixedly connected with the first right plunger; The left and right two ends of the mover of the second described linear electric motor respectively plunger left with second are fixedly connected with the second right plunger; Described first left plunger, the first right plunger, the second left plunger and the second right plunger have the first left plunger peripheral groove, the first right plunger peripheral groove, the second left plunger peripheral groove and the second right plunger peripheral groove, the slotting position of peripheral groove is positioned at and is fixedly connected with end 2/5ths plungers length to five/tetra-plungers length place apart from linear motor rotor; Described first left plunger, the first right plunger, the second left plunger and the second right plunger insert in the first left cylinder barrel, the first right cylinder barrel, the second left cylinder barrel and the second right cylinder barrel respectively, and the part that each plunger does not open peripheral groove forms clearance seal with corresponding inner wall of cylinder;
Described first left cylinder barrel has from left to right successively connection mouth and the first left cylinder suction port in the first left cylinder end connection mouth, the first left cylinder outlet, the first left cylinder, first left cylinder end connection mouth opens the left end at the first left cylinder barrel, and in the first left cylinder outlet, the first left cylinder, connection mouth and the first left cylinder suction port are opened at distance the first left cylinder barrel left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described first right cylinder barrel has from right to left successively connection mouth and the first right cylinder suction port in the first right cylinder end connection mouth, the first right cylinder outlet, the first right cylinder, first right cylinder end connection mouth opens the right-hand member at the first right cylinder barrel, and in the first right cylinder outlet, the first right cylinder, connection mouth and the first right cylinder suction port are opened at distance the first right cylinder barrel right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second left cylinder barrel has from left to right successively connection mouth and the second left cylinder suction port in the second left cylinder end connection mouth, the second left cylinder outlet, the second left cylinder, second left cylinder end connection mouth opens the left end at the second left cylinder barrel, and in the second left cylinder outlet, the second left cylinder, connection mouth and the second left cylinder suction port are opened at distance the second left cylinder barrel left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second right cylinder barrel has from right to left successively connection mouth and the second right cylinder suction port in the second right cylinder end connection mouth, the second right cylinder outlet, the second right cylinder, second right cylinder end connection mouth opens the right-hand member at the second right cylinder barrel, and in the second right cylinder outlet, the second right cylinder, connection mouth and the second right cylinder suction port are opened at distance the second right cylinder barrel right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
First left cylinder end connection mouth is communicated with connection mouth in the second left cylinder, in first left cylinder, connection mouth is communicated with the second right cylinder end connection mouth, first right cylinder end connection mouth is communicated with connection mouth in the second right cylinder, in first right cylinder, connection mouth is communicated with the second left cylinder end connection mouth, first left cylinder outlet, the first right cylinder outlet, the second left cylinder outlet are all communicated with pump discharge with the second right cylinder outlet, and the first left cylinder suction port, the first right cylinder suction port, the second left cylinder suction port are all communicated with Pump Suction Nozzle with the second right cylinder suction port.
Housing of the present invention, four plungers and four cylinder barrels all adopt non-corrosive material manufacture.
When the present invention works, linear motor rotor pulls or promotes plunger iterative motion, completes and sucks liquid and press juice body action, the motion difference four/one-period of two linear motor rotors; When each plunger sucks liquid, liquid be by between this plunger end and cylinder barrel formed cavity volume increase produce suction act on, connection mouth in cylinder end connection mouth and the cylinder of another cylinder barrel that is communicated with thereof, then the piston peripheral groove in this cylinder barrel and the cylinder suction port on cylinder barrel, sucked by Pump Suction Nozzle; When each plunger extrudes liquid, liquid be by between this plunger end and cylinder barrel institute is formed cavity volume reduction generation extrudation, connection mouth in cylinder end connection mouth and the cylinder of another cylinder barrel that is communicated with thereof, then the piston peripheral groove in this cylinder barrel and the cylinder on cylinder barrel export, and extrude from pump discharge; Linear motor rotor to-and-fro motion one completes a work cycle back and forth, and in each work cycle, each plunger completes suction liquid and press juice body action is each once.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is by piston valving, and compare the linear electric motor reciprocating pump of Flat valve form, can not be subject to the impact of flow-distributing valve hysteresis effect, pressure pulsation and flow pulsation significantly reduce.
2, the present invention adopts double-action linear electric motor to drive reciprocating plunger, owing to being straight reciprocating motion, plunger design in the plunger pump that can drive than revolution obtains longer, and then longer clearance seal length can be designed on the plunger of straight reciprocating motion, effectively can reduce leakage, improve volumetric efficiency.
3, the present invention adopts linear electric motor to drive, and decrease the transformation of energy link being converted to straight line plunger reciprocates by rotary motion that common electric rotating machine drags traditional plunger pump, efficiency is high.
4, the present invention adopts linear electric motor to drive, and by controlling the mover speed of linear electric motor, the stepless variable that can realize pump regulates.
5, traditional inclined disc type water hydraulic component is in abyssal environment, and swash plate by high confining pressure effect, causes the volumetric efficiency of pump to decline to a great extent, and in such cases according to Flat valve structure, be then under pressure pulsation and the large puzzlement of flow pulsation.After the present invention adopts non-corrosive material, directly sucking seawater is working medium, compares traditional water hydraulic component, eliminates the impact that swash plate reduces by confined pressure functioning efficiency, is specially adapted to deep-sea high confining pressure environment.
Accompanying drawing explanation
The present invention has 5, accompanying drawing, wherein:
Fig. 1 is that piston valving double-action linear electric motor drive reciprocating plunger pump structure and circuit diagram;
Fig. 2 is first 1/4th periodic duty schematic diagram that piston valving double-action linear electric motor drive reciprocating pump work cycle;
Fig. 3 is second 1/4th periodic duty schematic diagram that piston valving double-action linear electric motor drive reciprocating pump work cycle;
Fig. 4 is the 3rd 1/4th periodic duty schematic diagrams that piston valving double-action linear electric motor drive reciprocating pump work cycle;
Fig. 5 is the 4th 1/4th periodic duty schematic diagrams that piston valving double-action linear electric motor drive reciprocating pump work cycle;
In figure: 1. the first linear motor rotor, 2. the first linear electric motor, 3. the second linear motor rotor, 4. the second linear electric motor, 5. pump discharge, 6. Pump Suction Nozzle, 11. first left cylinder barrels, 12. first left plungers, 13. first left plunger peripheral grooves, 14. first left cylinder end connection mouths, connection mouth in 15. first left cylinders, 16. first left cylinder outlets, 17. first left cylinder suction ports, 21. first right cylinder barrels, 22. first right plungers, 23. first right plunger peripheral grooves, 24. first right cylinder end connection mouths, connection mouth in 25. first right cylinders, 26. first right cylinder outlets, 27. first right cylinder suction ports, 31. second left cylinder barrels, 32. second left plungers, 33. second left plunger peripheral grooves, 34. second left cylinder end connection mouths, connection mouth in 35. second left cylinders, 36. second left cylinder outlets, 37. second left cylinder suction ports, 41. second right cylinder barrels, 42. second right plungers, 43. second right plunger peripheral grooves, 44. second right cylinder end connection mouths, connection mouth in 45. second right cylinders, 46. second right cylinder outlets, 47. second right cylinder suction ports.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.As shown in Figure 1, a kind of piston valving double-action linear electric motor drive reciprocating pump, comprise housing, two linear electric motor, four plungers and four cylinder barrels; Two described linear electric motor and four cylinder barrels are all fixed in housing, and housing has pump discharge 5 and Pump Suction Nozzle 6, described plunger is equal with the length of cylinder barrel;
Two described linear electric motor are first linear electric motor 2 and second linear electric motor 4, four described cylinder barrels are the first left cylinder barrel 11, first right cylinder barrel 21, second left cylinder barrel 31 and second right cylinder barrels 41, and four described plungers are the first left plunger 12, first right plunger 22, second left plunger 32 and second right plungers 42; The left and right two ends of the mover 1 of the first described linear electric motor 2 respectively plunger 12 left with first are fixedly connected with the first right plunger 22; The left and right two ends of the mover 3 of the second described linear electric motor 4 respectively plunger 32 left with second are fixedly connected with the second right plunger 42; Described first left plunger 12, the first left plunger 32 of right plunger 22, second and the second right plunger 42 have the first left plunger peripheral groove 13, first right plunger peripheral groove 23, second left plunger peripheral groove 33 and the second right plunger peripheral groove 43, and the slotting position of peripheral groove is positioned at and is fixedly connected with end 2/5ths plungers length to five/tetra-plungers length place apart from linear motor rotor; Described first left plunger 12, the first left plunger 32 of right plunger 22, second and the second right plunger 42 insert in the first left cylinder barrel 11, first left cylinder barrel 31 of right cylinder barrel 21, second and the second right cylinder barrel 41 respectively, and the part that each plunger does not open peripheral groove forms clearance seal with corresponding inner wall of cylinder;
Described first left cylinder barrel 11 has from left to right successively connection mouth 15 and the first left cylinder suction port 17 in first left cylinder end connection mouth 14, first left cylinder outlet the 16, first left cylinder, first left cylinder end connection mouth 14 opens the left end at the first left cylinder barrel 11, and in first left cylinder outlet the 16, first left cylinder, connection mouth 15 and the first left cylinder suction port 17 are opened at distance the first left cylinder barrel 11 left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described first right cylinder barrel 21 has from right to left successively connection mouth 25 and the first right cylinder suction port 27 in first right cylinder end connection mouth 24, first right cylinder outlet the 26, first right cylinder, first right cylinder end connection mouth 24 opens the right-hand member at the first right cylinder barrel 21, and in first right cylinder outlet the 26, first right cylinder, connection mouth 25 and the first right cylinder suction port 27 are opened at distance the first right cylinder barrel 21 right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second left cylinder barrel 31 has from left to right successively connection mouth 35 and the second left cylinder suction port 37 in second left cylinder end connection mouth 34, second left cylinder outlet the 36, second left cylinder, second left cylinder end connection mouth 34 opens the left end at the second left cylinder barrel 31, and in second left cylinder outlet the 36, second left cylinder, connection mouth 35 and the second left cylinder suction port 37 are opened at distance the second left cylinder barrel 31 left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second right cylinder barrel 41 has from right to left successively connection mouth 45 and the second right cylinder suction port 47 in second right cylinder end connection mouth 44, second right cylinder outlet the 46, second right cylinder, second right cylinder end connection mouth 44 opens the right-hand member at the second right cylinder barrel 41, and in second right cylinder outlet the 46, second right cylinder, connection mouth 45 and the second right cylinder suction port 47 are opened at distance the second right cylinder barrel 41 right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
First left cylinder end connection mouth 14 is communicated with connection mouth 35 in the second left cylinder, in first left cylinder, connection mouth 15 is communicated with the second right cylinder end connection mouth 44, first right cylinder end connection mouth 24 is communicated with connection mouth 45 in the second right cylinder, in first right cylinder, connection mouth 25 is communicated with the second left cylinder end connection mouth 34, the left cylinder outlet 36 of first left cylinder outlet the 16, first right cylinder outlet 26, second is all communicated with pump discharge 5 with the second right cylinder outlet 46, and the left cylinder suction port 37 of first left cylinder suction port the 17, first right cylinder suction port 27, second is all communicated with Pump Suction Nozzle 6 with the second right cylinder suction port 47.
Described housing, four plungers and four cylinder barrels all adopt non-corrosive material manufacture.
When the present invention works, linear motor rotor pulls or promotes plunger iterative motion, completes and sucks liquid and press juice body action, the motion difference four/one-period of two linear motor rotors.Linear motor rotor to-and-fro motion one completes a work cycle back and forth, and in each work cycle, each plunger completes suction liquid and press juice body action is each once, and Fig. 2 ~ Fig. 5 is four 1/4th periodic duty schematic diagrams in a work cycle.
As shown in Figure 2, the first linear motor rotor 1 is to left movement from shown position, and the second linear motor rotor 3 is also to left movement, and the first linear motor rotor 1 falls behind the second linear motor rotor 1/3rd five cylinder barrel length, now, in first left cylinder barrel 11, along with the first left plunger 12 is promoted to left movement by the first linear motor rotor 1, in first left cylinder, connection mouth 15 is communicated with by the first left plunger peripheral groove 13 on the first left plunger 12 with the first left cylinder suction port 17, and the first left cylinder outlet 16 is by the first left plunger 12 clearance seal, the first left cylinder outlet 16 is made to separate cannot be communicated with connection mouth 15 in the first left cylinder end connection mouth 14 and the first left cylinder, in first right cylinder barrel 21, along with the first right plunger 22 is pulled to left movement by the first linear motor rotor 1, in first right cylinder, connection mouth 25 and the first right cylinder are exported 26 and are communicated with by the first right plunger peripheral groove 23 on the first right plunger 22, and the first right cylinder suction port 27 is by the first right plunger 22 clearance seal, make the first right cylinder suction port 27 separate cannot be communicated with connection mouth 25 in the first right cylinder, the first right cylinder end connection mouth 24 is spaced by the first right plunger 22 and the first right cylinder barrel 21 clearance seal effect, in second left cylinder barrel 31, along with the second left plunger 32 is promoted to left movement by the second linear motor rotor 3, in second left cylinder, connection mouth 35 and the second left cylinder are exported 36 and are communicated with by the second left plunger peripheral groove 33 on the second left plunger 32, and the second left cylinder suction port 37 is by the second left plunger 32 clearance seal, make the second left cylinder suction port 37 separate cannot be communicated with connection mouth 35 in the second left cylinder, the second left cylinder end connection mouth 34 is spaced by the second left plunger 32 and the second left cylinder barrel 31 clearance seal effect, in second right cylinder barrel 41, along with the second right plunger 42 is pulled to left movement by the second linear motor rotor 3, in second right cylinder, connection mouth 45 is communicated with by the second right plunger peripheral groove 43 on the second right plunger 42 with the second right cylinder suction port 47, and the second right cylinder outlet 46 is by the second right plunger 42 clearance seal, the second right cylinder outlet 46 is made to separate cannot be communicated with connection mouth 45 in the second right cylinder end connection mouth 44 and the second right cylinder, the cavity volume that first left plunger 12 end and the first left cylinder barrel 11 are formed reduces to produce extrudation, the liquid extruded is through the first left cylinder end connection mouth 14, connection mouth 35 in second left cylinder, second left plunger peripheral groove 33 and the second left cylinder outlet 36 to pump discharge 5 are discharged, the cavity volume that first right plunger 22 end and the first right cylinder barrel 21 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the second right cylinder suction port 47, second right plunger peripheral groove 43, in second right cylinder, connection mouth 45 and the first right cylinder end connection mouth 24 enter the first right cylinder barrel 21, the cavity volume that second left plunger 32 end and the second left cylinder barrel 31 are formed reduces to produce extrudation, the liquid extruded is through the second left cylinder end connection mouth 34, connection mouth 25 in first right cylinder, first right plunger peripheral groove 23 and the first right cylinder outlet 26 to pump discharge 5 are discharged, the cavity volume that second right plunger 42 end and the second right cylinder barrel 41 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the first left cylinder suction port 17, first left plunger peripheral groove 13, in first left cylinder, connection mouth 15 and the second right cylinder end connection mouth 44 enter the second right cylinder barrel 41.
As shown in Figure 3, first linear motor rotor 1 continues to left movement, second linear motor rotor 3 drives the second left plunger 32 and the second right plunger 42 to move to the end position of left end shown in Fig. 3 from Fig. 2 position, start to move right, the each linear motor rotor in position shown in from position shown in Fig. 2 to Fig. 3 has been passed by 1/5th cylinder barrel length, 1/4th cycles of a corresponding work cycle, now, in first left cylinder barrel 11, along with the first left plunger 12 is promoted to continue to left movement by the first linear motor rotor 1, in first left cylinder, connection mouth 15 and the first left cylinder are exported 16 and are communicated with by the first left plunger peripheral groove 13 on the first left plunger 12, and the first left cylinder suction port 17 is by the first left plunger 12 clearance seal, make the first left cylinder suction port 17 separate cannot be communicated with connection mouth 15 in the first left cylinder, the first left cylinder end connection mouth 14 is spaced by the first left plunger 12 and the first left cylinder barrel 11 clearance seal effect, in first right cylinder barrel 21, along with the first right plunger 22 is pulled continuation to left movement by the first linear motor rotor 1, in first right cylinder, connection mouth 25 is communicated with by the first right plunger peripheral groove 23 on the first right plunger 22 with the first right cylinder suction port 27, and the first right cylinder outlet 26 is by the first right plunger 22 clearance seal, the first right cylinder outlet 26 is made to separate cannot be communicated with connection mouth 25 in the first right cylinder end connection mouth 24 and the first right cylinder, in second left cylinder barrel 31, move right along with the second left plunger 32 is pulled by the second linear motor rotor 3, in second left cylinder, connection mouth 35 and the second left cylinder are exported 36 and are communicated with by the second left plunger peripheral groove 33 on the second left plunger 32, and the second left cylinder suction port 37 is by the second left plunger 32 clearance seal, make the second left cylinder suction port 37 separate cannot be communicated with connection mouth 35 in the second left cylinder, the second left cylinder end connection mouth 34 is spaced by the second left plunger 32 and the second left cylinder barrel 31 clearance seal effect, in second right cylinder barrel 41, along with the second right plunger 42 is promoted to move right by the second linear motor rotor 3, in second right cylinder, connection mouth 45 is communicated with by the second right plunger peripheral groove 43 on the second right plunger 42 with the second right cylinder suction port 47, and the second right cylinder outlet 46 is by the second right plunger 42 clearance seal, the second right cylinder outlet 46 is made to separate cannot be communicated with connection mouth 45 in the second right cylinder end connection mouth 44 and the second right cylinder, the cavity volume that first left plunger 12 end and the first left cylinder barrel 11 are formed reduces to produce extrudation, the liquid extruded is through the first left cylinder end connection mouth 14, connection mouth 35 in second left cylinder, second left plunger peripheral groove 33 and the second left cylinder outlet 36 to pump discharge 5 are discharged, the cavity volume that first right plunger 22 end and the first right cylinder barrel 21 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the second right cylinder suction port 47, second right plunger peripheral groove 43, in second right cylinder, connection mouth 45 and the first right cylinder end connection mouth 24 enter the first right cylinder barrel 21, the cavity volume that second left plunger 32 end and the second left cylinder barrel 31 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the first right cylinder suction port 27, first right plunger peripheral groove 23, in first right cylinder, connection mouth 25 and the second left cylinder end connection mouth 34 enter the second left cylinder barrel 31, the cavity volume that second right plunger 42 end and the second right cylinder barrel 41 are formed reduces to produce extrudation, the liquid extruded is through the second right cylinder end connection mouth 44, connection mouth 15 in first left cylinder, first left plunger peripheral groove 13 and the first left cylinder outlet 16 to pump discharge 5 are discharged.
As shown in Figure 4, first linear motor rotor 1 drives the first left plunger 12 and the first right plunger 22 to move to the end position of left end shown in Fig. 4 from Fig. 3 position, start to move right, second linear motor rotor 3 continues to move right, the each linear motor rotor in position shown in from position shown in Fig. 3 to Fig. 4 has been passed by 1/5th cylinder barrel length, second 1/4th cycle of a corresponding work cycle, now, in first left cylinder barrel 11, move right along with the first left plunger 12 is pulled by the first linear motor rotor 1, in first left cylinder, connection mouth 15 and the first left cylinder are exported 16 and are communicated with by the first left plunger peripheral groove 13 on the first left plunger 12, and the first left cylinder suction port 17 is by the first left plunger 12 clearance seal, make the first left cylinder suction port 17 separate cannot be communicated with connection mouth 15 in the first left cylinder, the first left cylinder end connection mouth 14 is spaced by the first left plunger 12 and the first left cylinder barrel 11 clearance seal effect, in first right cylinder barrel 21, along with the first right plunger 22 is promoted to move right by the first linear motor rotor 1, in first right cylinder, connection mouth 25 is communicated with by the first right plunger peripheral groove 23 on the first right plunger 22 with the first right cylinder suction port 27, and the first right cylinder outlet 26 is by the first right plunger 22 clearance seal, the first right cylinder outlet 26 is made to separate cannot be communicated with connection mouth 25 in the first right cylinder end connection mouth 24 and the first right cylinder, in second left cylinder barrel 31, continue to move right along with the second left plunger 32 is pulled by the second linear motor rotor 3, in second left cylinder, connection mouth 35 is communicated with by the second left plunger peripheral groove 33 on the second left plunger 32 with the second left cylinder suction port 37, and the second left cylinder outlet 36 is by the second left plunger 32 clearance seal, the second left cylinder outlet 36 is made to separate cannot be communicated with connection mouth 35 in the second left cylinder end connection mouth 34 and the second left cylinder, in second right cylinder barrel 41, along with the second right plunger 42 is promoted to continue to move right by the second linear motor rotor 3, in second right cylinder, connection mouth 45 and the second right cylinder are exported 46 and are communicated with by the second right plunger peripheral groove 43 on the second right plunger 42, and the second right cylinder suction port 47 is by the second right plunger 42 clearance seal, make the second right cylinder suction port 47 separate cannot be communicated with connection mouth 45 in the second right cylinder, the second right cylinder end connection mouth 44 is spaced by the second right plunger 42 and the second right cylinder barrel 41 clearance seal effect, the cavity volume that first left plunger 12 end and the first left cylinder barrel 11 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the second left cylinder suction port 37, second left plunger peripheral groove 33, in second left cylinder, connection mouth 35 and the first left cylinder end connection mouth 14 enter the first left cylinder barrel 11, the cavity volume that first right plunger 22 end and the first right cylinder barrel 21 are formed reduces to produce extrudation, the liquid extruded is through the first right cylinder end connection mouth 24, connection mouth 45 in second right cylinder, second right plunger peripheral groove 43 and the second right cylinder outlet 46 to pump discharge 5 are discharged, the cavity volume that second left plunger 32 end and the second left cylinder barrel 31 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the first right cylinder suction port 27, first right plunger peripheral groove 23, in first right cylinder, connection mouth 25 and the second left cylinder end connection mouth 34 enter the second left cylinder barrel 31, the cavity volume that second right plunger 42 end and the second right cylinder barrel 41 are formed reduces to produce extrudation, the liquid extruded is through the second right cylinder end connection mouth 44, connection mouth 15 in first left cylinder, first left plunger peripheral groove 13 and the first left cylinder outlet 16 to pump discharge 5 are discharged.Position shown in from position shown in Fig. 2 to Fig. 4, the first left plunger 12 completes a press juice body action, and the first right plunger 22 completes an inhalant liquid body action.
As shown in Figure 5, first linear motor rotor 1 continues to move right, second linear motor rotor 3 drives the second left plunger 32 and the second right plunger 42 to move to the end position of right-hand member shown in Fig. 5 from Fig. 4 position, start to left movement, the each linear motor rotor in position shown in from position shown in Fig. 4 to Fig. 5 has been passed by 1/5th cylinder barrel length, the 3rd 1/4th cycles of a corresponding work cycle, now, in first left cylinder barrel 11, continue to move right along with the first left plunger 12 is pulled by the first linear motor rotor 1, in first left cylinder, connection mouth 15 is communicated with by the first left plunger peripheral groove 13 on the first left plunger 12 with the first left cylinder suction port 17, and the first left cylinder outlet 16 is by the first left plunger 12 clearance seal, the first left cylinder outlet 16 is made to separate cannot be communicated with connection mouth 15 in the first left cylinder end connection mouth 14 and the first left cylinder, in first right cylinder barrel 21, along with the first right plunger 22 is promoted to continue to move right by the first linear motor rotor 1, in first right cylinder, connection mouth 25 and the first right cylinder are exported 26 and are communicated with by the first right plunger peripheral groove 23 on the first right plunger 22, and the first right cylinder suction port 27 is by the first right plunger 22 clearance seal, make the first right cylinder suction port 27 separate cannot be communicated with connection mouth 25 in the first right cylinder, the first right cylinder end connection mouth 24 is spaced by the first right plunger 22 and the first right cylinder barrel 21 clearance seal effect, in second left cylinder barrel 31, along with the second left plunger 32 is promoted to left movement by the second linear motor rotor 3, in second left cylinder, connection mouth 35 is communicated with by the second left plunger peripheral groove 33 on the second left plunger 32 with the second left cylinder suction port 37, and the second left cylinder outlet 36 is by the second left plunger 32 clearance seal, the second left cylinder outlet 36 is made to separate cannot be communicated with connection mouth 35 in the second left cylinder end connection mouth 34 and the second left cylinder, in second right cylinder barrel 41, along with the second right plunger 42 is pulled to left movement by the second linear motor rotor 3, in second right cylinder, connection mouth 45 and the second right cylinder are exported 46 and are communicated with by the second right plunger peripheral groove 43 on the second right plunger 42, and the second right cylinder suction port 47 is by the second right plunger 42 clearance seal, make the second right cylinder suction port 47 separate cannot be communicated with connection mouth 45 in the second right cylinder, the second right cylinder end connection mouth 44 is spaced by the second right plunger 42 and the second right cylinder barrel 41 clearance seal effect, the cavity volume that first left plunger 12 end and the first left cylinder barrel 11 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the second left cylinder suction port 37, second left plunger peripheral groove 33, in second left cylinder, connection mouth 35 and the first left cylinder end connection mouth 14 enter the first left cylinder barrel 11, the cavity volume that first right plunger 22 end and the first right cylinder barrel 21 are formed reduces to produce extrudation, the liquid extruded is through the first right cylinder end connection mouth 24, connection mouth 45 in second right cylinder, second right plunger peripheral groove 43 and the second right cylinder outlet 46 to pump discharge 5 are discharged, the cavity volume that second left plunger 32 end and the second left cylinder barrel 31 are formed reduces to produce extrudation, the liquid extruded is through the second left cylinder end connection mouth 34, connection mouth 25 in first right cylinder, first right plunger peripheral groove 23 and the first right cylinder outlet 26 to pump discharge 5 are discharged, the cavity volume that second right plunger 42 end and the second right cylinder barrel 41 are formed increases and produces suction effect, suck liquid from Pump Suction Nozzle 6 through the first left cylinder suction port 17, first left plunger peripheral groove 13, in first left cylinder, connection mouth 15 and the second right cylinder end connection mouth 44 enter the second right cylinder barrel 41.Position shown in from position shown in Fig. 3 to Fig. 5, the second left plunger 32 completes an inhalant liquid body action, and the second right plunger 42 completes a press juice body action.Return each linear motor rotor in position shown in Fig. 2 to have passed by 1/5th cylinder barrel length from position shown in Fig. 5, the 4th 1/4th cycles of a corresponding work cycle, and then complete a work cycle; Position shown in from position shown in Fig. 4 to Fig. 5 is again to position shown in Fig. 2, and the first left plunger 12 completes an inhalant liquid body action, and the first right plunger 22 completes a press juice body action; Get back to position shown in Fig. 2 from position shown in Fig. 5 again to position shown in Fig. 3, the second left plunger 32 completes a press juice body action, and the second right plunger 42 completes an inhalant liquid body action.Linear motor rotor to-and-fro motion one completes a work cycle back and forth, and in each work cycle, each plunger completes suction liquid and press juice body action is each once.
Claims (2)
1. piston valving double-action linear electric motor drive a reciprocating pump, it is characterized in that: comprise housing, two linear electric motor, four plungers and four cylinder barrels; Two described linear electric motor and four cylinder barrels are all fixed in housing, and housing has pump discharge (5) and Pump Suction Nozzle (6), described plunger is equal with the length of cylinder barrel;
Two described linear electric motor are the first linear electric motor (2) and the second linear electric motor (4), four described cylinder barrels are the first left cylinder barrel (11), the first right cylinder barrel (21), the second left cylinder barrel (31) and the second right cylinder barrel (41), and four described plungers are the first left plunger (12), the first right plunger (22), the second left plunger (32) and the second right plunger (42); The left and right two ends of the mover (1) of described the first linear electric motor (2) respectively plunger (12) left with first are fixedly connected with the first right plunger (22); The left and right two ends of the mover (3) of described the second linear electric motor (4) respectively plunger (32) left with second are fixedly connected with the second right plunger (42); Described first left plunger (12), the first right plunger (22), the second left plunger (32) and the second right plunger (42) have the first left plunger peripheral groove (13), the first right plunger peripheral groove (23), the second left plunger peripheral groove (33) and the second right plunger peripheral groove (43), the slotting position of peripheral groove is positioned at and is fixedly connected with end 2/5ths plungers length to five/tetra-plungers length place apart from linear motor rotor; Described first left plunger (12), the first right plunger (22), the second left plunger (32) and the second right plunger (42) insert in the first left cylinder barrel (11), the first right cylinder barrel (21), the second left cylinder barrel (31) and the second right cylinder barrel (41) respectively, and the part that each plunger does not open peripheral groove forms clearance seal with corresponding inner wall of cylinder;
Described first left cylinder barrel (11) has from left to right successively connection mouth (15) and the first left cylinder suction port (17) in the first left cylinder end connection mouth (14), the first left cylinder outlet (16), the first left cylinder, first left cylinder end connection mouth (14) opens the left end at the first left cylinder barrel (11), and in the first left cylinder outlet (16), the first left cylinder, connection mouth (15) and the first left cylinder suction port (17) are opened at distance the first left cylinder barrel (11) left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described first right cylinder barrel (21) has from right to left successively connection mouth (25) and the first right cylinder suction port (27) in the first right cylinder end connection mouth (24), the first right cylinder outlet (26), the first right cylinder, first right cylinder end connection mouth (24) opens the right-hand member at the first right cylinder barrel (21), and in the first right cylinder outlet (26), the first right cylinder, connection mouth (25) and the first right cylinder suction port (27) are opened at distance the first right cylinder barrel (21) right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second left cylinder barrel (31) has from left to right successively connection mouth (35) and the second left cylinder suction port (37) in the second left cylinder end connection mouth (34), the second left cylinder outlet (36), the second left cylinder, second left cylinder end connection mouth (34) opens the left end at the second left cylinder barrel (31), and in the second left cylinder outlet (36), the second left cylinder, connection mouth (35) and the second left cylinder suction port (37) are opened at distance the second left cylinder barrel (31) left end 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
Described second right cylinder barrel (41) has from right to left successively connection mouth (45) and the second right cylinder suction port (47) in the second right cylinder end connection mouth (44), the second right cylinder outlet (46), the second right cylinder, second right cylinder end connection mouth (44) opens the right-hand member at the second right cylinder barrel (41), and in the second right cylinder outlet (46), the second right cylinder, connection mouth (45) and the second right cylinder suction port (47) are opened at distance the second right cylinder barrel (41) right-hand member 2/5ths, 3/5ths and 4/5ths cylinder barrel length place respectively;
First left cylinder end connection mouth (14) is communicated with connection mouth (35) in the second left cylinder, in first left cylinder, connection mouth (15) is communicated with the second right cylinder end connection mouth (44), first right cylinder end connection mouth (24) is communicated with connection mouth (45) in the second right cylinder, in first right cylinder, connection mouth (25) is communicated with the second left cylinder end connection mouth (34), first left cylinder outlet (16), first right cylinder outlet (26), second left cylinder outlet (36) is all communicated with pump discharge (5) with the second right cylinder outlet (46), first left cylinder suction port (17), first right cylinder suction port (27), second left cylinder suction port (37) is all communicated with Pump Suction Nozzle (6) with the second right cylinder suction port (47).
2. a kind of piston valving double-action linear electric motor according to claim 1 drive reciprocating pump, it is characterized in that: described housing, four plungers and four cylinder barrels all adopt non-corrosive material manufacture.
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| CN105089962A (en) * | 2015-08-27 | 2015-11-25 | 哈尔滨工程大学 | Underwater single-plunger type water hydraulic drive pump |
| CN105673384B (en) * | 2016-02-03 | 2017-11-07 | 杭州科雷智能印刷科技有限责任公司 | A kind of bi-motor single-tube double-cavity injects pump machanism |
| CN106286197B (en) * | 2016-11-09 | 2019-04-30 | 北京工业大学 | One kind is done more physical exercises unit straight line motor drive type plunger pump |
| CN108361168A (en) * | 2018-02-05 | 2018-08-03 | 南京航空航天大学 | It is staggered the time based on dual piston the continuous and stable type metering pump of compensation policy |
| CN110439779A (en) * | 2019-08-27 | 2019-11-12 | 烟台杰瑞石油装备技术有限公司 | A kind of plunger pump driven with linear motor |
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| CN2833172Y (en) * | 2005-10-09 | 2006-11-01 | 王英浩 | Energy-saving submersible electric pump oil production apparatus employing linear motor to drive dual-acting pump |
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