KR100727755B1 - Vacuum Apparatus for Exhausting Air - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum exhaust device, and more particularly, to a vacuum exhaust device capable of working without stopping a superconducting generator or motor by enabling vacuum exhausting during operation.

The configuration of the present invention and the casing penetrated, installed so that the rotor of the generator or motor rotatable; A spacing member for fixing the inside of the casing to allow the rotor to pass therethrough; Bearing members provided on both sides of the gap holding member; It is provided with an upper portion of the casing and has a structure including an exhaust passage member installed to communicate with the rotor and the interval maintaining member to perform a vacuum exhaust operation to exhaust the air inside the rotor to the outside.

The present invention having such a configuration can smoothly perform the vacuum exhaust operation during operation without stopping the rotation operation of the rotor of the generator or motor to be vacuum exhaust operation, to form a high vacuum state of the rotor without interruption of the operation In the case of a superconducting generator or motor, it is possible to maintain the insulation state with the normal temperature in the cryogenic state.

Superconductivity, Vacuum, Exhaust, Rotor, Running, Generator, Motor

Description

Vacuum Exhaust System {Vacuum Apparatus for Exhausting Air}

1 is a cross-sectional view illustrating a vacuum exhaust device according to the present invention;

Figure 2 is a perspective view showing the vacuum exhaust device according to the present invention cut,

3 is a perspective view showing a space keeping member that is part of a vacuum exhaust device according to the present invention.

* Explanation of Signs of Major Parts of Drawings *

10: rotor

11: exhaust hole

20: casing

21: side plate

22: ventilator

30: spacing member

31: Aerator

40: bearing member

50: exhaust passage member

51: exhaust pipe

52: opening and closing member

53: handle portion

54: loading

55: stop

60: stopper

70: vacuum pump

80: magnetic member

90,91: fixing member

100: seal member

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum exhaust device, and more particularly, to a vacuum exhaust device capable of working without stopping a superconducting generator or motor by enabling vacuum exhausting during operation.

In general, in the manufacture of superconducting generators or motors, the superconducting wires installed inside the rotor operate at cryogenic temperatures, and therefore should be thermally blocked at room temperature.

Conventionally, there has been a method of preventing thermal loss due to convection by maintaining a vacuum state, which is a thermal blocking efficiency only when a desired degree of vacuum is maintained inside. However, as a means for maintaining such a vacuum state, conventionally, if the desired internal vacuum is made by a vacuum pump or other device, the vacuum degree inside gradually decreases as a predetermined time elapses, and the situation of additional vacuum exhaust is required. Occurred.

Therefore, conventionally, in order to further evacuate the rotor, since the rotor is rotating during operation of the generator or motor, vacuum exhaust operation cannot be performed, and the rotor is stopped by stopping the operation of the generator or motor, and then vacuuming. You had to do the exhaust work.

Accordingly, the present invention has been invented to solve the above-mentioned conventional problems, to provide a vacuum exhaust device that can easily perform a vacuum exhaust operation without stopping the rotor in the situation that must be operated at all times as a generator of a power plant. There is an object of the invention.

The present invention for achieving the above object is a casing that is penetrated and installed so that the rotor of the generator or motor rotatable, the gap holding member to be fixed to the inside of the casing and the rotor, both sides of the gap holding member Technical features, including a bearing member provided in the upper portion of the casing, and an exhaust passage member provided to be in communication with the rotor and the space maintaining member to perform a vacuum exhaust operation to exhaust the air inside the rotor to the outside while do.

The gap maintaining member is a structure in which at least one vent is formed along the circumferential direction while forming a cylindrical shape.

In addition, the end of the bearing member is a structure provided with a stopper fixed to the outer peripheral surface of the rotor.

In addition, an exhaust hole is formed in the rotor, and an exhaust hole communicating with the exhaust hole is formed in the casing so as to be in communication with the inside of the exhaust passage member so as to be exhaustable.

The exhaust passage member is constructed to be separated from the casing.

In addition, an exhaust pipe connected to the vacuum pump is formed on one side of the exhaust passage member.

In addition, the inside of the exhaust passage member is a structure that is provided with an opening and closing member which is slidable and allows air drawn out from the inside of the casing to adjust the degree of exhaust opening and closing through the exhaust pipe.

The opening and closing member includes a handle portion exposed to the outside of the exhaust passage member, a rod extending from the handle portion and inserted into the exhaust passage member, and a blocking piece provided at the end of the rod to open and close. to be.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view illustrating a vacuum exhaust device according to the present invention;

Figure 2 is a perspective view showing the vacuum exhaust device according to the present invention cut,

3 is a perspective view showing a space keeping member that is part of a vacuum exhaust device according to the present invention.

As shown in the figure, the present invention is a casing 20 which is penetrated and installed so that the rotor 10 of the generator or motor is rotatable, and the rotor 10 penetrates while being fixed inside the casing 20. A gap holding member 30 to be provided, a bearing member 40 provided on at least one side of the gap holding member 30, and an upper portion of the casing 20 to provide air inside the rotor 10. It is composed of an exhaust passage member 50 installed to communicate with the rotor 10 and the space maintaining member 30 so as to perform a vacuum exhaust operation to exhaust to the outside.

The casing 20 is provided with side plates 21 that are assembled by cylindrical fastening means such as screws on both sides while forming a cylindrical shape. In addition, a vent hole 22 is formed at the central position of the casing 20 so as to communicate with the exhaust passage member 50.

The space maintaining member 30 is a structure in which at least one vent hole 31 is formed along the circumferential direction while forming a cylindrical shape.

In addition, the end of the bearing member 40 is a structure provided with a stopper 60 is fixed to the outer peripheral surface of the rotor 10. A fixing piece 61 is inserted into the stopper 60 so as to be integrally fixed to the rotor 10. Therefore, when the rotor 10 rotates at the same time, and at the same time, it serves to fix the bearing member 40 and the fixing member 91 so as not to go out of the casing (20).

In addition, an exhaust hole 11 is formed in the rotor 10, and communicates with the vent hole 22 of the casing 20 and the vent hole 31 of the space keeping member 30 to form the exhaust passage member ( It is in communication with the inside of 50) to be evacuable.

In addition, the exhaust passage member 50 has a structure assembled to be separated from the casing (20). When assembling, it is easy to disassemble and assemble through conventional fastening means such as screws.

In addition, one side of the exhaust passage member 50 has a structure in which an exhaust pipe 51 connected to the vacuum pump 70 is extended and formed.

In addition, the exhaust passage member 50 is provided with an opening / closing member 52 which is slidable and allows the air drawn out from the inside of the casing 20 to adjust the degree of opening and closing through the exhaust pipe 51. to be.

The opening and closing member 52 has a handle portion 53 exposed to the outside of the exhaust passage member 50, and a rod 54 that is inserted into the exhaust passage member 50 while being extended and formed from the handle portion 53. And a blocking piece 55 provided at the end of the rod 54 to open and close.

The blocking piece 55 is formed in a conical shape in the form of a light-emitting sub-cylinder, and is completely blocked when it is at the inner lower end of the exhaust passage member 50. In communication with the formed exhaust pipe 51, it remains in an open state.

On the other hand, at least one bearing member 40 is provided at intervals, and the magnetic member 80 is provided between the bearing members 40, respectively.

The magnetic member 80 is a magnetic fluid and a permanent magnet is filled together.

In addition, the outer and inner surfaces of the bearing member 40 and the magnetic member 80 are provided with ring-shaped fixing members 90 and 91, respectively, and the fixing member 90 located on the outer surface of the seal member for improving the sealing property. At least one seal member 100 is provided.

The present invention having such a configuration is that it is possible to easily perform the vacuum exhaust operation while the rotor 10 rotates inside the casing 20, when the rotor 10 is rotated, the rotor 10 Fixing member 91 provided on the circumferential surface of the at the same time rotates, and at the same time, the stopper 60 provided at the end of the bearing member 40 is also rotated at the same time.

At this time, when the vacuum pump 70 is operated to perform the vacuum exhaust operation, the vacuum exhaust operation is started through the exhaust pipe 51 of the exhaust passage member 50 connected to the vacuum pump 70. First, the exhaust passage member ( The opening and closing member 52 provided in the inside of 50) is moved upward. That is, when the grab portion 53 which is a part of the opening / closing member 52 and is exposed to the outside of the upper portion of the exhaust passage member 50 and pulled upward, the lower portion through the rod 54 connected to the grab portion 53. The blocking piece 55 formed at the upper portion is moved upward, and accordingly, the ventilation hole 22 formed at the lower end of the exhaust passage member 50 and formed at the upper surface of the casing 20 is opened.

Then, the gap maintaining member 30 is provided at the inner central position of the casing 20, and the gap maintaining member 30 has one or more vent holes 31 formed along the circumferential surface thereof, as shown in FIG. 3. Is in communication with the vent 22 of the casing (20).

Accordingly, the exhaust hole 11 and the vent holes 22 and 31 formed on the circumferential surface of the rotor 10 are in communication with each other, so that the vacuum exhaust operation is performed.

Here, since the rotor 10 is in a rotating state, the ventilation holes 11 formed in the rotor 10 are moved in the circumferential direction so that the ventilation holes of the casing 20 and the space keeping member 30 fixed thereto ( 22) 31, as shown in Fig. 1 or Fig. 2, does not coincide in vertical communication. However, since the vacuum pump 70 operates to forcibly exhaust the air by using the exhaust passage member 50, one or more vent holes 31 are formed on the circumferential surface of the gap maintaining member 30. , Through which the air inside the rotor 10 can be extracted. Of course, when the rotational speed of the rotor 10 is very high, but the vacuum exhaust operation may not be made smoothly, in the embodiment of the present invention, since the rotor 10 is usually rotated at 3600rpm, the vacuum exhaust operation It does not interfere with anything.

In addition, the present invention should not leak air to other parts of the casing 20 during the vacuum exhaust operation, as shown in Figure 1, basically, the fixing member 91 on the outer peripheral surface of the rotor 10 ), The fixing member 90 is in close contact with the outer circumferential surface of the bearing member 40, and furthermore, the fixing member 90 is provided with at least one seal member 100, so that air leaks through this gap. There is no fear of becoming. In addition, a magnetic member 80 is provided in the space portion between the bearing members 40. The magnetic member 80 is provided with a magnetic fluid and a permanent magnet therebetween, so as to be fixed between the fixing members 90 and 91. Full contact is made by magnetic force so that air does not leak through this gap.

Therefore, even when the rotor 10 rotates, it is possible to smoothly perform the vacuum exhaust operation without leakage of air.

As described above, the present invention can smoothly perform the vacuum exhaust operation during operation without stopping the rotation operation of the rotor of the generator or motor to be vacuum exhausted, so that the high vacuum state of the rotor can be formed without interruption of the operation. In the case of a superconducting generator or a motor, it is possible to maintain an insulation state with a room temperature in a cryogenic state.

Although the present invention has been described for the embodiments of the present invention based on the accompanying drawings for convenience, it is obvious that various modifications and changes are possible within the scope of the technical idea of the present invention.

Claims (8)

A casing through and installed so that the rotor of the generator or the motor can rotate; A spacing member for fixing the inside of the casing to allow the rotor to pass therethrough; Bearing members provided on both sides of the gap holding member; It is provided with an upper portion of the casing and a structure including an exhaust passage member installed to communicate with the rotor and the interval maintaining member to perform a vacuum exhaust operation to exhaust the air inside the rotor to the outside, An exhaust hole is formed in the rotor, and an exhaust hole communicating with the exhaust hole is also formed in the casing so as to communicate with the inside of the exhaust passage member so as to be exhaustable. One side of the exhaust passage member is formed, the exhaust pipe connected to the vacuum pump is extended, And an opening / closing member which is slidably movable in the exhaust passage member to control the degree of exhaust opening and closing through the exhaust pipe while the air drawn out from the inside of the casing is provided. The method of claim 1, The gap maintaining member is a vacuum exhaust device, characterized in that at least one vent formed in the circumferential direction while forming a cylindrical shape. The method of claim 1, And a stopper fixed to an outer circumferential surface of the rotor at an end of the bearing member. delete The method of claim 1, And the exhaust passage member is assembled to be separated from the casing. delete delete The method of claim 1, The opening and closing member comprises a handle portion exposed to the outside of the exhaust passage member, a rod extending from the handle portion and inserted into the exhaust passage member, and a blocking piece provided at the end of the rod to open and close. Vacuum exhaust device characterized in that.

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