CN1260092C - Pump jetting propeller - Google Patents
Pump jetting propeller Download PDFInfo
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- CN1260092C CN1260092C CN 02155351 CN02155351A CN1260092C CN 1260092 C CN1260092 C CN 1260092C CN 02155351 CN02155351 CN 02155351 CN 02155351 A CN02155351 A CN 02155351A CN 1260092 C CN1260092 C CN 1260092C
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Abstract
The present invention relates to a pump jet propeller which belongs to a mechanical device of the field of ship propulsion. The present invention comprises a hydrodynamic chamber, a water sucking and discharging valve group, a counter electrode type superconducting solenoid magnet and an electromagnetic piston which is positioned in a warm hole core barrel of a superconducting magnet, wherein the electromagnetic piston is integrated with a disk-shaped piston into a whole by a solenoid coil which generates electromagnetic thrust force. The current direction of a superconducting solenoid coil on the electromagnetic piston is changed periodically, the electromagnetic force applied to the electromagnetic piston is changed periodically to drive the piston to make reciprocating motion, the work procedures of water sucking and discharging of reciprocating pump jet are realized through the hydrodynamic chamber and the water sucking and discharging valve group, and the counterforce of water jet generates forward thrust force. The present invention has the advantages of less noise, high efficiency and no rotating part or transmission mechanism, and can be used in both conducting fluid or non-conducting fluid. Because the present invention is free from the problem of the dynamic shaft seal of the transmission shaft, the present invention is suitable for propulsion at deep sea.
Description
Technical field
The present invention relates to a kind of pump spray propelling unit, belong to the mechanical device in propulsion of ship field.
Background technology
It is one of existing propulsion of ship mode that magnetohydrodynamic advances, it is as electric conductor with seawater, in seawater, pass to electric current, with the magnetic field interaction vertical that adds with direction of current, make the conduction seawater be subjected to electromagnetic force---Lorentz force action and moving, promptly by electromagnetic action electric energy is transferred to the kinetic energy of seawater, its antagonistic force promotes boats and ships and advances.The angle of rake advantage of this magnetohydrodynamic is to have cancelled traditional screw propeller and parts such as huge reducing gear and transmission shaft, and noise is low, vibration is little.But this propelling unit can only use in conductive fluid such as seawater, just can not use in non conducting fluid such as inland river fresh water, so it is used and development is restricted.And, for being the mhd thruster of working fluid with the seawater,, just must set up very strong magnetic field in order to obtain high efficiency.At present, utilize existing industrial superconducting magnet technology, make field intensity and surpass 15T, big, the lightweight kicker magnet of the size that is suitable for boat-carrying remains in bigger difficulty.
Summary of the invention
The object of the present invention is to provide a kind of new pump spray propelling unit, adopt the mode of the solid conductor that high conductivity is set in working fluid, improve the intensity and the efficient of electromagnetic action greatly.It has kept above-mentioned magnetohydrodynamic propelling unit not have screw propeller and huge reducing gear and transmission shafting, and low noise advantages, overcomes the shortcoming that it can not use in non conducting fluid again, simultaneously, has reduced the difficulty that superconducting magnet is made.
Technical essential of the present invention is the sum total of superconducting linear motor and reciprocating pump spray technique, and its motor stator is to polar form superconducting solenoid magnet, so that high radial magnetic field to be provided; Electric mover with push away the water piston formation electromagnetic piston that is integrated; The process that electric energy changes the kinetic energy of water into is to realize by the electromagnetic induction effect between magnetic field and the electromagnetic piston.Mode of operation of the present invention is for changing the direction of current of the normal guide screw pipeline circle on the electromagnetic piston periodically, and change acts on the direction of the power on the electromagnetic piston, make its crank motion, thereby promote the motion of the water of piston both sides, under the interoperation of hydrodynamic force chamber and suction penstock group, realize that process is made in the suction water conservancy project of reciprocating pump spray.
Polar form superconducting solenoid magnet is made up of the superconducting solenoid coil of coaxial arrangement on a coil core tube of two groups of symmetries, every group of solenoid winding can have one or more solenoid windings, between two groups of solenoid windings certain distance is arranged, this distance can be 0 to 500mm, two groups of solenoid windings are used the current in opposite excitation respectively, polarity is opposite, constitutes the polar form superconducting magnet, produces higher radial distribution magnetic field in its cylindrical shape room temperature endoporus space.Form by the normal guide screw pipeline circle that places the coaxial disc piston of superconducting magnet room temperature endoporus core tube and be wrapped in disc outside piston side groove as the electromagnetic piston of electric mover, the disc piston is made with non-magnet material, and the direction of current that flows through in normal guide screw pipeline circle and the radial magnetic field orientation of its position intersect vertically.When electric current passed through the coil of electromagnetic piston, because the electromagnetic induction effect, electromagnetic piston will be subjected to an axial electromagnetic force effect, and this power can be expressed as
Wherein I is the electric current in the electromagnetic piston; Br is a radial magnetic field intensity; D is a coil diameter; N is the electromagnetic piston coil turn.At magnetic-field intensity, under electromagnetic piston coil turn and diameter one stable condition, the size and Orientation of electromagnetic push depends on the size of current and the direction of electromagnetic piston.Therefore, can control electric mover electromagnetic piston crank motion by regulating its size of current and direction.
Another effect of electromagnetic piston is the water piston that pushes away as reciprocating pump spray system, piston/cylinder is for constituting the room temperature endoporus core tube of above-mentioned superconducting magnet, stretch out outside the superconducting magnet at the two ends of this room temperature endoporus core tube, be communicated with the both sides water channel of hydrodynamic force chamber respectively, be intersected in the suction and the discharge port of hydrodynamic force chamber before and after the water channel of both sides respectively, in the both sides of water sucking mouth water channel intersection, be respectively equipped with water inlet check valve separately, and being provided with change-over valve in the both sides of discharge port water channel intersection, these valves constitute the suction penstock group of reciprocating pumps spray.When the direction of current of electromagnetic piston changes periodically, make electromagnetic piston reciprocating in piston cylinder, under the interoperation of hydrodynamic force chamber and suction penstock group thereof, realize that suction water conservancy project constantly makes process, make electric energy change the hydrodynamic(al) energy into, the antagonistic force of water spray promotes boats and ships and advances.
Because the lead of the conventional solenoid winding of electromagnetic piston is generally copper, conductivity is 5 * 10
7S/m so propelling unit of the present invention does not need very high magnetic field, also can obtain quite high efficient.Simultaneously, the wood invention does not have huge reducing gear and transmission shafting owing to cancelled screw propeller yet.Therefore noise is low, and the present invention does not rely on the electric conductivity of water when electric energy is converted into the hydrodynamic(al) energy, so not only can be used for conductive fluid, also can be used for non conducting fluid, moreover, advance so can be applicable to the deep-sea because there is not the dynamic shaft envelope problem that exists in traditional propulsion of ship in the present invention.
Description of drawings
Fig. 1 is superconducting magnetic piston pump spray propeller structure scheme drawing.
Fig. 2 is that superconduction is to utmost point magnet structure scheme drawing.
Fig. 3 is the electromagnetic piston structural representation.
Fig. 4 is the radial magnetic field Br of an electromagnetic piston coil place range distribution curve vertically.
Fig. 5 is an electromagnetic piston electromagnetic force direction scheme drawing.
The specific embodiment
Fig. 1 sprays angle of rake structure for the superconducting magnetic piston pump of one of specific embodiment of the invention.It comprises superconduction to utmost point magnet 10, electromagnetic piston 20, hydrodynamic force chamber 30, right check valve 40, left check valve 50, change-over valve 60, water sucking mouth 70, discharge port 80.Superconduction to utmost point magnet 10 structures as shown in Figure 2, it comprises two groups of superconducting solenoid coils 101 and 102, coil core tube 103, room temperature endoporus core tube 104.The structure of electromagnetic piston 20 as shown in Figure 3, it comprises normal guide screw pipeline circle 201, piston 202.
Superconduction is to two groups of superconducting solenoid coils 101 in the utmost point magnet 10 and 102 in the opposite direction after the current excitation, produce radial magnetic field Br between two groups of superconducting solenoid coils in the magnetic field room temperature endoporus core tube 104 in the room temperature endoporus space, Br in the normal guide screw pipeline of electromagnetic piston circle 201 diameter place typical profile vertically as shown in Figure 4.When normal guide screw pipeline circle 201 was by electric current in the electromagnetic piston 20, electric current along the circumferential direction and radial magnetic field Br intersected vertically, and produce an electromagnetic force F vertically, F=IB
rπ dn, I are the electric current of electromagnetic piston coil; Br is the radial magnetic field of electromagnetic piston coil radial position of living in; D is the electromagnetic piston coil diameter; N is the electromagnetic piston coil turn.The direction of F depends on direction of current in the normal loop 201 of electromagnetic piston 20, and direction of current changes the also change of direction of electromagnetic force F that produces, as shown in Figure 5.
The radial magnetic field Br direction that utmost point magnet 10 is produced when superconduction as shown in Figure 2, in the electromagnetic piston 20 direction of current as among Fig. 5 a) shown in, electromagnetic piston is subjected to the effect of electromagnetic force F to the right, electromagnetic piston 20 moves right, in the piston-advance direction, promptly right check valve 40 is closed among Fig. 1, and the left side among the draining change-over valve 60 tangential figure, water in piston 20 the place ahead hydrodynamic force chambers is pushed out discharge port 80, and the antagonistic force of water produces pump spray thrust.Meanwhile, the water of piston 20 back is along with piston 20 moves right, and water inlet check valve 50 in a left side is open among Fig. 1, and water is 70 suctions from the water sucking mouth.When direction of current in the electromagnetic piston 20 oppositely as b among Fig. 5) shown in the time, then produce electromagnetic piston 20 to left movement, at this moment, left side flood valve 50 is closed, the right side among the draining change-over valve 60 tangential figure, and right water inlet check valve 40 is opened, water is 70 suctions from the water sucking mouth, discharge from discharge port 80.70 suctions constantly of electromagnetic piston 20 crank motions, water from the water sucking mouth, and, realize the working process that the reciprocating pump spray advances from discharge port 80 discharges.
Superconduction to utmost point magnet [10] radial magnetic field Br effect under, change the direction of current on the electromagnetic piston 20 periodically, electromagnetic piston 20 is subjected to the effect of electromagnetic force F of break-in periodically and is reciprocating, thereby promote the motion of piston 20 both sides water, under the interoperation of hydrodynamic force chamber 30 and suction penstock group 40,50,60, realize water 70 suctions from the water sucking mouth constantly, the reciprocating pump of discharging from discharge port 80 sprays working process again, and the antagonistic force of water spray produces thrust forward.
The present invention is a big and trial ship contrast with the Japan that adopts magnetohydrodynamic to advance, and under the condition of identical superconducting magnet magnetic-field intensity, the marine railway water yield, the speed of a ship or plane, total thrust, both effects such as following table are listed.
Parameter | Greatly with No. one | The present invention |
Types of propellers | 2 * 6 ring-type compound tubes | 2 * 1 linear advancement pipes |
The propelling unit caliber | 240 millimeters of 2 * 6 * φ | 550 millimeters of 2 * Φ |
Superconducting magnet | 6 ring dipolar B Z=4 tesals | Two screwed pipes are to utmost point magnet B r=0.8 tesal |
Displacement | 184 tons | 184 tons |
The speed of a ship or plane | 8.5 joint | 8.5 joint |
Design thrust | 2 * 7285 Ns | 2 * 7285 Ns |
Flow | 2 * 1.47 meters 3/ second | 2 * 1.47 meters 3/ second |
Horsepower input | 3600 kilowatts | 129.16 kilowatt |
Electrical efficiency η e(%) | 2.9 | 96 |
Propeller efficiency η T(%) | 2.6 | 86.4 |
Net effciency η S(%) | 1.72 | 57.6 |
As can be seen from the table, superconducting magnetic piston pump spray propeller efficiency height (overall propulsive efficiency is 57.6%) of the present invention, and because it does not have rotatable parts and transmission device, noise is little, does not also have the dynamic shaft envelope problem of transmission shaft, therefore, be particularly suitable for propelling unit as submarine, especially the deep-sea advances, and to strengthen the disguise and the safety of submarine, improves its fight capability.On the other hand, this propelling unit is not subjected to the influence of waters electric conductivity, and promptly it both can be used as the propulsion of ship of ocean, can be used for the propulsion of ship in landlocked river, lake again, especially use its high efficiency, the low noise characteristics of more embodying in the travelling scenery district, reduce the influence of ecology environment on every side.
Claims (3)
1, a kind of pump spray propelling unit, comprise that hydrodynamic force chamber [30], suction penstock group, superconduction are to utmost point magnet [10], it is characterized in that superconduction is assemblied on the coil core tube [103] by two groups of superconducting solenoid coils [101 and 102] are coaxial utmost point magnet [10], distance between two groups of superconducting solenoid coils [101 and 102] is 0 to 500mm, two groups of superconducting solenoid coils [101 and 102] exciting current direction is opposite, formation produces radial magnetic field Br to utmost point magnet between two solenoid windings [102 and 102]; Superconducting magnet room temperature endoporus core tube [104] double as piston cylinder wherein is provided with reciprocating electromagnetic piston [20], and electromagnetic piston [20] is made of disc piston [201] and solenoid winding [201], and is connected as a single entity; The disc piston [202] of electromagnetic piston [20] is made by non-magnet material, its circular outside is provided with Baltimore groove, twine the normal guide screw pipeline circle [201] of conventional wires coiling in Baltimore groove, the direction of current that flows through in normal guide screw pipeline circle [201] and the radial magnetic field Br direction of its position intersect vertically.
2, according to the described pump spray of claim 1 propelling unit, it is characterized in that radial magnetic field Br and perpendicular crossing electromagnetic piston [20] mutual action of superconduction, produce electromagnetic force utmost point magnet [10]
Promoting electromagnetic piston [20] moves vertically; Superconduction to utmost point magnet [10] radial magnetic field Br effect under, change the direction of current of the normal guide screw pipeline circle [201] on the electromagnetic piston [20] periodically, thereby change the direction of the power on the electromagnetic piston [20] that acts on, make its crank motion, promote the motion of the water of electromagnetic piston [20] both sides, under the interoperation of hydrodynamic force chamber [30] and suction penstock group, realize the suction water of reciprocating pump spray.
3, according to the described pump spray of claim 1 propelling unit, it is characterized in that superconducting magnet room temperature endoporus core tube [104] places between the reciprocating pump water spray power chamber [30], its two ends are connected with the both sides water channel of reciprocating pump spray respectively, the both sides water channel is intersected in water inlet and discharge port respectively, be respectively equipped with into water check valve [40 and 50] in water inlet both sides water channel intersection, and be provided with a draining change-over valve [60] in discharge port both sides water channel intersection.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02155351 CN1260092C (en) | 2002-12-11 | 2002-12-11 | Pump jetting propeller |
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CN 02155351 CN1260092C (en) | 2002-12-11 | 2002-12-11 | Pump jetting propeller |
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CN1506267A CN1506267A (en) | 2004-06-23 |
CN1260092C true CN1260092C (en) | 2006-06-21 |
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CN 02155351 Expired - Fee Related CN1260092C (en) | 2002-12-11 | 2002-12-11 | Pump jetting propeller |
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Families Citing this family (22)
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CN1610228B (en) * | 2004-07-26 | 2012-12-12 | 张大平 | Piston type super conducting engine |
CN101844615A (en) * | 2010-04-27 | 2010-09-29 | 宋郊 | Electromagnetic propeller of ship |
CN102167149B (en) * | 2011-03-29 | 2013-09-25 | 王承辉 | Environment-friendly and energy-saving boat only powered by water pumping system |
CN103057683B (en) * | 2013-01-22 | 2015-08-19 | 徐洪林 | A kind of Piston-type ship propeller with cylinder liner |
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CN103879536B (en) * | 2014-04-14 | 2016-07-06 | 大连海事大学 | A kind of hydro-jet propulsion system |
CN106428498A (en) * | 2015-08-07 | 2017-02-22 | 王元知 | Electromagnetic thruster |
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CN106741783B (en) * | 2017-02-27 | 2018-08-14 | 中国科学院海洋研究所 | A kind of pulsed unidirectionally promotes pump |
CN109278963A (en) * | 2017-07-21 | 2019-01-29 | 杨雨斐 | A kind of super-silent underwater propeller |
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CN110550175B (en) * | 2018-06-01 | 2021-03-12 | 中国科学院理化技术研究所 | Propelling device |
CN108622361B (en) * | 2018-06-11 | 2020-07-28 | 哈尔滨工程大学 | Novel jet propulsion device |
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CN110371280B (en) * | 2019-08-01 | 2021-03-23 | 张玉华 | Box marine propulsor |
CN110979585B (en) * | 2019-12-31 | 2020-11-03 | 张丽英 | Rudderless self-stabilizing ship |
CN114056528A (en) * | 2021-12-14 | 2022-02-18 | 湖南高精特电装备有限公司 | Control system and control method of circulating electromagnetic jet device |
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2002
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