CN112360715B - Deep sea low noise variable pump - Google Patents
Deep sea low noise variable pump Download PDFInfo
- Publication number
- CN112360715B CN112360715B CN202011158392.6A CN202011158392A CN112360715B CN 112360715 B CN112360715 B CN 112360715B CN 202011158392 A CN202011158392 A CN 202011158392A CN 112360715 B CN112360715 B CN 112360715B
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- Prior art keywords
- plunger
- permanent magnet
- deep sea
- section
- pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/003—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 free-piston type pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to a deep sea low-noise variable pump which comprises a pump body, wherein the pump body comprises cylinder bodies arranged at intervals, first sealing plates extending out of the cylinder bodies at intervals, plugs positioned between the cylinder bodies and the first sealing plates, and plunger seats hermetically connected between the first sealing plates at two sides, and the cylinder bodies, the first sealing plates, the plugs and the plunger seats form oil cavities for containing oil; a plunger hole is formed in the inner end face of the cylinder body and communicated with a low-pressure inlet, and a high-pressure outlet is formed in the outer end face of the cylinder body; a permanent magnet plunger is arranged in the plunger hole, a groove is formed in the inner end surface of the cylinder body close to the permanent magnet plunger, a rotating coil is arranged in the groove, and a thrust coil is arranged on the plunger seat; the displacement of the plunger pump can be changed by controlling the movement speed of the permanent magnet plunger, and the stroke of single movement of the plunger can be changed by adjusting the distance between the plunger hole and the plunger so as to change the displacement of the plunger pump.
Description
Technical Field
The invention relates to the technical field of underwater hydraulic pressure, in particular to a deep sea low-noise variable pump.
Background
The development of deep sea resources is receiving more and more attention, and the development equipment is more and more diversified. The hydraulic system has the advantages of strong bearing capacity, high power density, convenient speed regulation and the like, and is widely applied to deep sea resource development. However, with the stepping of human beings, various kinds of machine equipment noise have great influence on the life of marine organisms.
Common pumps of the hydraulic system have the structural forms of gear pumps, plunger pumps, vane pumps and screw pumps. The gear pump mainly has the advantages of simple structure, good processing technology, small volume, wear resistance, strong anti-pollution capability and the like, but also has the defects of low volume efficiency and the like at low speed, and the gear pump has higher general working rotating speed and larger noise.
The screw pump mainly has the advantages of small pressure pulsation, low noise, high volumetric efficiency, strong pollution resistance and the like, but has the defects of difficult processing, lower use pressure and the like.
The vane pump has the advantages of uniform flow, stable movement, low noise, small size and the like, but the vane pump is easy to cause the blocking of the vanes and has higher requirement on the cleanliness of oil.
The plunger pump has multiple structural forms, has the advantages of high working pressure, high efficiency, convenient variable and the like, but can generate great noise during operation because the flow pulsation of the plunger pump is large.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides a deep sea low-noise variable displacement pump with a reasonable structure, the rotating speed of a plunger is adjusted through a rotating coil, and a dynamic lubrication state is maintained, so that the abrasion is reduced, the noise is reduced, and the service life is prolonged.
The technical scheme adopted by the invention is as follows:
a deep sea low-noise variable pump comprises a pump body, wherein the pump body comprises cylinder bodies arranged at intervals, first sealing plates extending out of the cylinder bodies at intervals, plugs positioned between the cylinder bodies and the first sealing plates, and plunger seats hermetically connected between the first sealing plates on two sides, and the cylinder bodies, the first sealing plates, the plugs and the plunger seats form oil cavities for containing oil;
a plunger hole is formed in the inner end face of the cylinder body and communicated with a low-pressure inlet, and a high-pressure outlet is formed in the outer end face of the cylinder body;
the permanent magnet plunger is arranged in the plunger hole, a groove is formed in the inner end face of the cylinder body and close to the permanent magnet plunger, a rotating coil is arranged in the groove, and a thrust coil is arranged on the plunger seat.
The pump comprises a pump body and is characterized in that end covers are connected to two ends of the pump body in a sealing mode, a high-pressure cavity is formed between each end cover and the end face of the pump body, and a pressure-out valve is arranged between a plunger hole in the pump body and each high-pressure cavity.
And a suction valve is communicated between the low-pressure inlet and the plunger hole, one of the suction valve and the extrusion valve at the same plunger hole is opened, and the other is closed.
The low pressure inlet is provided on the first closing plate.
The permanent magnet plunger comprises a first plunger section, a second plunger section and a third plunger section which are symmetrically arranged at two ends of the first plunger section, and the first plunger section, the second plunger section and the third plunger section are coaxially arranged.
The second plunger section, third plunger section all correspond and are equipped with rotating coil, and rotating coil uses second plunger section and third plunger section as the symmetric center, and radial symmetry sets up.
The first closing plate is in threaded connection with the plunger seat, and the axial direction of the threads is perpendicular to the axial direction of the permanent magnet plunger.
The invention has the following beneficial effects:
the plunger pump can control the influence of the rotating coil on the permanent magnet plunger through an external control system, so that the movement speed of the permanent magnet plunger is controlled, and the larger the rotating speed of the permanent magnet plunger is, the faster the discharge capacity of the plunger pump is; the smaller the rotation speed of the permanent magnet plunger is, the slower the displacement of the plunger pump is, so as to achieve the purpose of changing the displacement of the plunger pump;
the invention can also change the distance between the plunger hole and the plunger and the acting force of the thrust coil on the permanent magnet plunger by adjusting the threaded connection length of the plunger pump body and the plunger seat, thereby changing the stroke of the plunger in single movement and changing the displacement of the plunger pump;
through the two modes, the variable range of the plunger pump is large, and the application range is wider.
The invention can adjust the rotating speed of the permanent magnet plunger through the rotating coil, and can also achieve the expected dynamic lubrication state through adjusting the rotating speed, reduce the abrasion of parts, reduce noise and prolong the service life; the speed and time of the permanent magnet plunger motion are controlled through the thrust coil, the expected matching state can be achieved, pressure pulsation is minimum, and noise is reduced.
Drawings
Fig. 1 is a sectional view of a variable displacement pump according to the present invention.
Fig. 2 shows a state of motion of the permanent magnet plunger in the present invention.
Fig. 3 shows another state of motion of the permanent magnet plunger of the present invention.
FIG. 4 is a side view of the pump body of the present invention with a rectangular end face.
FIG. 5 is a side view of the pump body of the present invention with a circular end face.
Wherein: 1. a pump body; 2. a low pressure inlet; 3. a high pressure outlet; 4. a plunger hole; 5. a permanent magnet plunger; 6. a thrust coil; 7. a rotating coil; 8. an end cap; 9. a high pressure chamber; 10. a pressure valve; 11. a suction valve; 12. an oil chamber; 13. a first closing plate; 14. a plunger seat; 15. a plug;
101. a cylinder body;
501. a first plunger section; 502. a second plunger section; 503. a third plunger section.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the deep sea low noise variable displacement pump of the embodiment includes a pump body 1, the pump body 1 includes spaced cylinder bodies 101, first closing plates 13 extending from the sealing blocks 101 to spaced positions, a plug 15 located between the cylinder body 101 and the first closing plates 13, and a plunger seat 14 hermetically connected between the first closing plates 13 on both sides, the cylinder body 101, the first closing plates 13, the plug 15, and the plunger seat 14 form an oil chamber 12 for containing oil;
a plunger hole 4 is formed in the inner end face of the cylinder body 101, the plunger hole 4 is communicated with a low-pressure inlet 2, and a high-pressure outlet 3 is formed in the outer end face of the cylinder body 101;
a permanent magnet plunger 5 is arranged in the plunger hole 4, a groove is formed in the inner end surface of the cylinder body 101 close to the permanent magnet plunger 5, a rotating coil 7 is arranged in the groove, and a thrust coil 6 is arranged on the plunger seat 14.
The two ends of the pump body 1 are hermetically connected with end covers 8, a high-pressure cavity 9 is formed between the end covers 8 and the end face of the pump body 1, and a pressure valve 10 is arranged between the plunger hole 4 in the pump body 1 and the high-pressure cavity 9.
A suction valve 11 is communicated between the low-pressure inlet 2 and the plunger hole 4, one of the suction valve 11 and the extrusion valve 10 at the same plunger hole 4 is opened, and the other is closed.
The low pressure inlet 2 opens on the first closing plate 13.
The permanent magnet plunger 5 comprises a first plunger section 501, a second plunger section 502 and a third plunger section 503 which are symmetrically arranged at two ends of the first plunger section 501, and the first plunger section 501, the second plunger section 502 and the third plunger section 503 are coaxially arranged.
The second plunger section 502 and the third plunger section 503 are both provided with a rotating coil 7 correspondingly, and the rotating coil 7 is arranged in a radial symmetry manner by taking the second plunger section 502 and the third plunger section 503 as a symmetry center.
The first closing plate 13 is in threaded connection with the plunger seat 14, and the axial direction of the threads is perpendicular to the axial direction of the permanent magnet plunger 5.
The specific structure and working principle of this embodiment are as follows:
as shown in fig. 1, the number of the permanent magnet plungers 5 is plural, and the permanent magnet plungers 5 in the present embodiment are not affected by the shape of the pump body 1, and as shown in fig. 4 and 5, the cross section of the pump body 1 may be circular or rectangular.
The upper and lower both sides of the second plunger section 502 and the third plunger section 503 of each permanent magnet plunger 5 all are equipped with rotation coil 7, and rotation coil 7 uses second plunger section 502 and third plunger section 503 as the benchmark symmetry setting.
Working medium of the plunger pump is filled in the oil cavity 12 through the low-pressure inlet 2, the permanent magnet plunger 5 is enabled to rotate under the action of the rotating coil 7, a dynamic lubrication state is achieved, friction between the permanent magnet plunger 5 and the plunger hole 4 is reduced, and noise is reduced; under the action of the thrust coil 6, the permanent magnet plunger 5 moves back and forth in the plunger hole 4 along the axis to form a volume difference. As shown in fig. 2 and fig. 3, fig. 2 is a state where the permanent magnet plunger 5 is tightly pressed against one of the plunger holes 4, fig. 3 is a state where the permanent magnet plunger 5 retreats from one of the plunger holes 4 to the other plunger hole 4, during the retreating process of the permanent magnet plunger 5, the volume of the plunger hole 4 where the permanent magnet plunger 5 was originally located increases, the working medium enters the plunger hole 4 through the suction valve 11 on the same side, and at this time, the extrusion valve 10 on the same side is closed; if the permanent magnet plunger 5 moves from the state of fig. 3 to the state of fig. 2, i.e. the permanent magnet plunger 5 extends forward into the plunger hole 4 where it was originally located, the volume of this plunger hole 4 decreases, the suction valve 11 on the same side closes, the pressure of the working medium increases, and the working medium enters the high-pressure chamber 9 through the extrusion valve 10 and is discharged from the high-pressure outlet 3. Thereby realizing that the high-pressure outlets 3 on both sides output high-pressure medium uniformly.
The control system controls the motion matching of each plunger, so that the high-pressure medium output by the high-pressure outlet 3 can be stabilized, the pressure pulsation of the system is reduced, and the noise of the system is reduced.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (7)
1. The deep sea low-noise variable pump comprises a pump body (1), and is characterized in that the pump body (1) comprises cylinder bodies (101) arranged at intervals, first closing plates (13) extending from the cylinder bodies (101) to the intervals, plugs (15) located between the cylinder bodies (101) and the first closing plates (13), and plunger seats (14) hermetically connected between the first closing plates (13) on two sides, wherein an oil cavity (12) for containing oil is formed by the cylinder bodies (101), the first closing plates (13), the plugs (15) and the plunger seats (14);
a plunger hole (4) is formed in the inner end face of the cylinder body (101), the plunger hole (4) is communicated with a low-pressure inlet (2), and the outer end face of the cylinder body (101) is communicated with a high-pressure outlet (3);
permanent magnet plungers (5) are arranged in the plunger holes (4), grooves are formed in the inner end face of the cylinder body (101) close to the permanent magnet plungers (5), rotating coils (7) are arranged in the grooves, and thrust coils (6) are arranged on the plunger seats (14).
2. Deep sea low noise variable displacement pump according to claim 1, characterized in that the pump body (1) is hermetically connected with end caps (8) at both ends, a high pressure chamber (9) is formed between the end caps (8) and the end face of the pump body (1), and a pressure outlet valve (10) is arranged between the plunger hole (4) in the pump body (1) and the high pressure chamber (9).
3. Deep sea low noise variable displacement pump according to claim 2, characterized in that between the low pressure inlet (2) and the plunger hole (4) there is connected a suction valve (11), one of the suction valve (11) and the pressure valve (10) at the same plunger hole (4) is open and the other is closed.
4. Deep sea low noise variable displacement pump according to claim 1, characterized in that the low pressure inlet (2) is provided in the first closing plate (13).
5. The deep sea low noise variable displacement pump according to claim 1, wherein: the permanent magnet plunger (5) comprises a first plunger section (501), a second plunger section (502) and a third plunger section (503) which are symmetrically arranged at two ends of the first plunger section (501), and the first plunger section (501), the second plunger section (502) and the third plunger section (503) are coaxially arranged.
6. The deep sea low noise variable displacement pump according to claim 5, wherein: the second plunger section (502) and the third plunger section (503) are correspondingly provided with a rotating coil (7), and the rotating coil (7) is radially and symmetrically arranged by taking the second plunger section (502) and the third plunger section (503) as symmetric centers.
7. Deep sea low noise variable displacement pump according to claim 1, characterized by the threaded connection between the first closing plate (13) and the plunger seat (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158392.6A CN112360715B (en) | 2020-10-26 | 2020-10-26 | Deep sea low noise variable pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158392.6A CN112360715B (en) | 2020-10-26 | 2020-10-26 | Deep sea low noise variable pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112360715A CN112360715A (en) | 2021-02-12 |
| CN112360715B true CN112360715B (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011158392.6A Active CN112360715B (en) | 2020-10-26 | 2020-10-26 | Deep sea low noise variable pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112360715B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832245A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Double-plunger pulse-free flow combining method and direct-drive plunger pump |
| CN102305203A (en) * | 2011-08-16 | 2012-01-04 | 北京工业大学 | Linear motor-driven plunger pump |
| CN103967739A (en) * | 2014-05-29 | 2014-08-06 | 苏州大学张家港工业技术研究院 | Electromagnetic plunger pump |
| WO2015137517A1 (en) * | 2014-03-14 | 2015-09-17 | 独立行政法人産業技術総合研究所 | Magnetic rotating and reciprocating motion mechanism |
| CN207333130U (en) * | 2017-11-01 | 2018-05-08 | 贵阳力泉液压技术有限公司 | A kind of electromagnetic plunge pump |
| CN111120241A (en) * | 2019-12-30 | 2020-05-08 | 邵延荣 | Reciprocating booster pump |
-
2020
- 2020-10-26 CN CN202011158392.6A patent/CN112360715B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832245A (en) * | 2010-04-28 | 2010-09-15 | 北京航空航天大学 | Double-plunger pulse-free flow combining method and direct-drive plunger pump |
| CN102305203A (en) * | 2011-08-16 | 2012-01-04 | 北京工业大学 | Linear motor-driven plunger pump |
| WO2015137517A1 (en) * | 2014-03-14 | 2015-09-17 | 独立行政法人産業技術総合研究所 | Magnetic rotating and reciprocating motion mechanism |
| CN103967739A (en) * | 2014-05-29 | 2014-08-06 | 苏州大学张家港工业技术研究院 | Electromagnetic plunger pump |
| CN207333130U (en) * | 2017-11-01 | 2018-05-08 | 贵阳力泉液压技术有限公司 | A kind of electromagnetic plunge pump |
| CN111120241A (en) * | 2019-12-30 | 2020-05-08 | 邵延荣 | Reciprocating booster pump |
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| Publication number | Publication date |
|---|---|
| CN112360715A (en) | 2021-02-12 |
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