JP2677286B2 - Water moving device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for moving water such as seawater having conductivity. BACKGROUND ART Japanese Patent Publication No. 55-1153 discloses a pouring device used for casting equipment.In this prior art, a progressive magnetic field is generated by alternating current excitation to give thrust to the molten metal, and the molten metal is pushed from a tap. An electromagnetic pump for generating a traveling magnetic field, which has a configuration for outputting power and is supplied with power from an AC power source, is provided at a fixed position. DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention It is obvious that this prior art uses an AC power supply and consumes a large amount of power. Other prior art provides a pair of electrodes that contact water,
A DC voltage is applied between these electrodes, and a magnetic field is externally applied to move the water. In this prior art, water is electrolyzed to generate a gas, and depending on the type of the water, chlorine or the like is contained, and accordingly, it is desired that the gas is not generated. An object of the present invention is to provide a water moving device in which water is not electrolyzed and power consumption is suppressed. Means for Solving the Problems The present invention includes (a) an electrically insulating material, and the side wall 9
Water 66, which has 0, 91 and a bottom 97 connecting the lower parts of both side walls 90, 91, and has a substantially U-shaped cross section perpendicular to the axis.
And (b) a first passage that is disposed outside of both side walls 90 and 91 and that has first longitudinal rotation axes 71 and 72 and is rotatably provided.
Of the superconducting coil units 92, 93, wherein each of the first superconducting coil units 92, 93 has a bottomed first tube 176 and a bottomed second cylinder 176 in order from the inside to the outside.
A cylinder 79 and a bottomed third cylinder 80 are provided, and a first space 82 between the first cylinder 176 and the second cylinder 79 and a second cylinder 7 are provided.
The second space 83 between the 9 and the third cylinder 80 is evacuated, and the liquid helium 78 is stored in the first cylinder 176, and the liquid helium 78 contains the first rotation. A first superconducting coil 67 having axes 74 and 75 orthogonal to the axes 71 and 72 is immersed, and a lid 79a is airtightly attached to the first cylinder 176 above the first cylinder 176. Is filled with a heat insulating material 85, a partition cylinder 84 extending above the liquid helium 78 is provided above the second cylinder 79, and a third space 81 between the second cylinder 79 and the partition cylinder 84 is provided. Is a first superconducting coil unit 92, 93 in which liquid nitrogen is stored, and (c) a second superconducting coil unit 94 arranged below the bottom 97 of the flow path 65. A second superconducting coil unit 94 having the same rotational axis 73 as that of the first superconducting coil unit 92, 93, and (d) a prime mover 70. Force and transmitted to one of the first superconducting Koiruyunitsuto 93 and one end 95 along a second axis of rotation 73 of the second superconducting Koiruyunitsuto 94,
And a means for transmitting from the other end 96 along the second rotation axis 73 of the second superconducting coil unit 94 to the other first superconducting coil unit 92. Operation According to the present invention, the superconducting coil is rotationally driven at a fixed position, and a magnetic field is generated by this coil, so that an eddy current flows in the conductive water in the magnetic field, which causes the water to flow. Electromagnetic force acts according to Fleming's left-hand rule.
In this way, the water can be driven and moved. First Embodiment FIG. 1 is a sectional view showing a structure on which the present invention is based. A hull 22 floating on water 21 such as seawater is equipped with a prime mover 23, and by this prime mover 23, a superconducting coil 24
Are driven to rotate about a horizontal axis of rotation 25. A permanent current is applied to the superconducting coil 24 so that the superconducting coil 24 is in the permanent current mode and is excited in this way, and the axis 26 of the superconducting coil 24 is orthogonal to the rotation axis 25. As a result, an alternating magnetic field having a direction indicated by reference numeral 27 and varying in magnetic field strength is generated in the water 21. And the water 21 has a reference mark
An eddy current shown by 28 flows. Therefore, the first on the water 21
An electromagnetic force acts in a direction 29 toward the front of the paper surface of the drawing, and the reaction force drives and propels the hull 22 in the direction 30 toward the back of the paper surface of FIG. FIG. 2 is a sectional view of the vicinity of the superconducting coil 24. Hull
The bottom 22a of the vessel 22 is made of a material that does not cause eddy current loss, for example, an electrically insulating synthetic resin such as fiber reinforced plastic (abbreviated as FRP). In the right cylindrical rotating cylinder 31,
The rotating shafts 34, 35 made of an electrically insulating material and a material such as metal and attached to the end plates 32, 33 of the casing 21 are
It is supported by bearings 36 and 37 and is supported by the hull 22. The casing 31 is thus rotatable about the horizontal axis 25. The output shaft of the prime mover 23 is connected to the rotary shaft 35 and drives the casing 31 around the axis 25. In the casing 31, the superconducting coil 24 is fixed, the axis 26 of the superconducting coil 24 is on one diameter line of the casing 31,
As described above, it is orthogonal to the rotation axis 25. A low temperature fluid such as liquid helium at −269 ° C. is stored in the casing 31, and the superconducting coil 24 is in a superconducting state in which a current continues to flow and is excited. The superconducting coil 24 has an element wire made of, for example, NbTi thin wire, and is formed by coating the element wire with copper, and the entire shape is wound into a coil shape. The procedure for starting the operation will be described with reference to FIG. NbTi
Between the terminals 38 and 39 of the superconducting coil 24 consisting of a thin wire, NbTi
Are connected by a connecting line 40 consisting of The connecting wire 40 can be heated by an electric heater 41. Terminals 38, 39
Is supplied with electric power for excitation via lines 42 and 43. Before starting the operation, first turn on the heater 41,
The connection line 40 is set to the normal conduction state. The superconducting coil 24 is in a superconducting state. In this state, a direct current is applied to the lines 42 and 43 by increasing it from zero to 200 A, for example. Then, next, the supply of electric power to the heater 41 is cut off, whereby the connecting wire 40 is also brought into the superconducting state. Therefore, the current supplied to the lines 42 and 43 is decreased and becomes zero with the lapse of time from 200 A, for example. As the current supplied via lines 42 and 43 decreases, the current flowing through connecting line 40 increases. After zeroing the current flowing through the lines 42 and 43, the lines 42 and 43 are removed from the terminals 38 and 39. In this way, a direct current continues to flow in the superconducting coil 24 via the connecting wire 40, and thus a magnetic field along the axis 26 thereof is constantly generated. Therefore, the magnetic field acting on the water 21 below the ship bottom 22a as the casing 31 is rotated has the direction 27 shown in FIG. 2 and the magnitude of the magnetic field causes the casing 31 to rotate. It is an alternating magnetic field that changes periodically with it. FIG. 4 is a sectional view showing a structure which is another premise of the present invention. This structure is similar to the structure described above, and corresponding parts are designated by the same reference numerals. Note that with this configuration,
A permanent magnet piece 45 is fixed to the hull 22, and this permanent magnet piece 45
Magnetic flux links the superconducting coil 24. The superconducting coil 24 has a coil shape similar to the above-mentioned configuration, and both terminals thereof are connected by a connecting wire made of a superconducting material. Therefore, when the casing 31 is rotationally driven by the prime mover 23, an induced electromotive force is generated in the superconducting coil 24, and the superconducting coil 24 is excited to be in the permanent current mode. According to the configuration of FIG. 4 as described above, in order to excite the superconducting coil 24, it is not necessary to supply a current from the lines 42 and 43 as described with reference to FIG. It's easy. The permanent magnet piece 45 is provided only at the start of operation. FIG. 5 is a sectional view of an embodiment of the present invention. In this embodiment, the flow path 65 is provided. The flow channel 65 has a longitudinal direction extending in a direction perpendicular to the plane of the paper of FIG.
For example, it is made of synthetic resin or a metal having a structure that does not generate an eddy current. A conductive fluid 66 such as seawater is stored in the flow path 65. Superconducting coils 67, 68, 69 are provided outside the flow path 65. These superconducting coils 67, 68, 69 are driven by the prime mover 70 to rotate the rotation axes 71, 7
Driven around 2,73. Superconducting coil 67,68,69
The axes 74, 75, 76 of are orthogonal to the rotation axes 71, 72, 73, respectively. As a result, the electromagnetic force in the direction perpendicular to the paper surface of FIG. 5 is generated in the fluid 66 according to Fleming's left-hand rule.
It is possible to move, and it is possible to achieve the function as a pump. FIG. 6 is a sectional view showing the structure of the superconducting coil 67 and its vicinity. The superconducting coil 67 is wound around the bobbin 74 a, and the bottom 77 of the innermost first tube 176 is mounted via the mounting base 75.
Fixed to Liquid helium 78 is stored in the first cylinder 176, and the superconducting coil 67 immersed in the liquid helium is in a superconducting state. This liquid helium 78
A lid 79a is airtightly attached to the first cylinder 176 above. As a result, when the coil 67 rotates around the rotation axis 71 together with the first cylinder 176 and the like, liquid helium
It is possible to prevent 78 from rising along the inner peripheral surface of the first cylinder 176 due to centrifugal force. A second cylinder 79 is provided outside the first cylinder 176 with a space therebetween, and a third cylinder 80 is further provided outside thereof. Second cylinder
79 is cooled by the liquid nitrogen supplied to the annular space 81. The space 82 between the first cylinder 176 and the second cylinder 79, and the second
The space 83 between the cylinder 79 and the third cylinder 80 is evacuated, and heat transfer from the outside to the fluid 78 in the first cylinder 176 is blocked. The space 81 where liquid nitrogen is stored is a concentric partition tube.
The upper end of the partition tube 84 is formed by the second tube 79.
Connected to. A heat insulating material 85 is filled in the upper part of the first cylinder 176. An outer cylinder 87 is connected to an upper portion of the third cylinder 80 via an outward flange 86. The upper end of the outer cylinder 87 is the first
The cap 88 and the upper end of the cylinder 176 are hermetically closed by the cap 88. A shaft 89 is fixed to the cap 88, and the shaft 89 has an axis on a rotation axis 71. The shaft 89 is rotationally driven by the prime mover 70. The other superconducting coil 68 has a similar structure. The flow path 65 has both side walls 90, 91 and a bottom 92 connecting the lower portions of these side walls 90, 91, and has a cross section perpendicular to the axis perpendicular to the plane of FIG. 5 (the plane of the plane of FIG. 5). The cross section parallel to is substantially U-shaped. The superconducting coil units 92 and 93 have superconducting coils 67 and 68, respectively, and are arranged outside the side walls 90 and 91, respectively. A superconducting coil unit 94 is arranged below the bottom 97 of the flow path 65.
Has a superconducting coil 69. The superconducting coil unit 94 is configured such that a low temperature fluid is stored in a casing, and the superconducting coil 69 orthogonal to the rotation axis 73 is immersed in the low temperature fluid. This configuration is shown in FIGS. 1 to 4 described above. The configuration is the same. The power of the prime mover 70 is transmitted to one end 95 of one superconducting coil unit 93 and the superconducting coil unit 94 along the rotation axis 73, and from the other end 96 of the superconducting coil unit 94 along the rotation axis 73 to the other superconducting coil unit 92. Be transmitted to. Effects As described above, according to the present invention, it is possible to move electrically conductive water without causing electrolysis or the like, and thus without generating gas. Moreover, it consumes little power. Particularly, according to the present invention, the lid 79a is airtightly provided on the first cylinder 176, and accordingly, the liquid helium 78 is provided on the first cylinder 176.
It is possible to prevent the centrifugal force from ascending along the inner peripheral surface of 176, which can suppress heat input as much as possible. Further, according to the present invention, the insulating material 85 is provided above the lid 79a.
Is filled in the first cylinder 176, which also suppresses heat input. Furthermore, according to the present invention, the partition cylinder is provided on the upper part of the second cylinder 79.
84 is provided, the partition cylinder 84 extends above the liquid helium 78, and liquid nitrogen having a temperature higher than that of liquid helium is stored in the third space 81 between the second cylinder 79 and the partition cylinder 84. Therefore, the upper portions of the partition cylinder 84 and the second cylinder 79 are cooled, heat input from the outside is suppressed, and heat input to the first cylinder 176 and the liquid helium 78 therein is prevented. Further, according to the present invention, one prime mover 70 is used to rotationally drive the pair of first superconducting coil unit 92, 93 and the second superconducting coil unit 94, thereby simplifying the configuration. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified cross-sectional view showing the structure on which the present invention is based, FIG. 2 is a cross-sectional view of the superconducting coil 24 shown in FIG. 1 and its vicinity, and FIG. Is an electric circuit diagram showing a procedure for starting the operation of the superconducting coil 24, FIG. 4 is a simplified front view showing a structure which is another premise of the present invention, and FIG. 5 is a sectional view of an embodiment of the present invention. FIG. 6 is a sectional view showing the structure of the superconducting coil 67 shown in FIG. 5 and its vicinity. 67,68,69 …… Superconducting coil, 70 …… Motor, 66 …… Conductive fluid

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Junichi Onishi               1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries               Akashi factory                (56) References JP-A-50-82512 (JP, A)                 JP-A-53-512 (JP, A)                 Japanese Patent Publication Sho 55-1153 (JP, B2)

Claims (1)

(57) [Claims] (A) It is made of an electrically insulating material and has both side walls 90 and 91,
It has a bottom 97 connecting the lower parts of these side walls 90, 91,
A flow path 65 in which water 66 having a substantially U-shaped cross section perpendicular to the axis is stored, and (b) a first vertical rotation axis 71, which is arranged outside both side walls 90 and 91, respectively. First having 72 and rotatably provided
Of the superconducting coil units 92, 93, wherein each of the first superconducting coil units 92, 93 has a bottomed first cylinder 176 and a bottomed second cylinder 7 in order from the inside to the outside.
9 and a bottomed third cylinder 80 are provided, and a first space 82 between the first cylinder 176 and the second cylinder 79 and a second cylinder 79 are provided.
The second space 83 between the third cylinder 80 and the third cylinder 80 is evacuated, and liquid helium 78 is stored in the first cylinder 176. The liquid helium 78 contains the first rotation axis line. The first superconducting coil 67 having axes 74 and 75 orthogonal to 71 and 72 is immersed, and a lid 79a is airtightly attached to the first cylinder 176 above the first cylinder 176, and the lid 79a A heat insulating material 85 is filled in the upper part, a partition cylinder 84 extending above the liquid helium 78 is provided in the upper part of the second cylinder 79, and a third space 81 between the second cylinder 79 and the partition cylinder 84 is provided. Is a first superconducting coil unit 92, 93 in which liquid nitrogen is stored, and (c) a second superconducting coil unit 94 arranged below the bottom 97 of the flow path 65. A second superconducting coil unit 94 having a rotation axis 73 and having the same configuration as the first superconducting coil units 92, 93; and (d) a prime mover 70, which drives the prime mover 70. The force is transmitted to one end 95 of the one first superconducting coil unit 93 and the second superconducting coil unit 94 along the second rotation axis 73.
And a means for transmitting from the other end 96 of the second superconducting coil unit 94 along the second rotation axis 73 to the other first superconducting coil unit 92.