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System and cooling method for cooling electromagnetic rail gun rail

An electromagnetic rail gun and cooling channel technology, applied in the field of electromagnetic rail gun, can solve the problems of poor cooling effect of the cooling system, complex cooling method and process, and untimely heat dissipation of the gun bore, etc., to achieve improved efficiency, good conductive effect, and improved cooling effect Effect

Active Publication Date: 2019-01-04
BEIJING MECHANICAL EQUIP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned analysis, the present invention aims to provide a system and cooling method for cooling electromagnetic rail gun rails, which can at least solve one of the following technical problems: (1) the cooling effect of the existing rail gun cooling system is poor, resulting in If the heat dissipation is not timely, the track surface is ablated, causing damage to the track surface; (2) The existing rail gun cooling method is complicated in process, has many cooling equipment, and is not easy to operate and control

Method used

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  • System and cooling method for cooling electromagnetic rail gun rail
  • System and cooling method for cooling electromagnetic rail gun rail
  • System and cooling method for cooling electromagnetic rail gun rail

Examples

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Embodiment 1

[0042] A specific embodiment of the present invention discloses a system for cooling rails of electromagnetic rail guns, including a cooling passage arranged in rails (rails) 1 of electromagnetic rail guns, a liquid storage tank 9 for storing coolant, and a cryogenic Liquid pump 8; the front section of the cooling channel 4 is set along the length direction of the guide rail, and the rear section of the cooling channel 4 is set in the direction of the contact surface between the guide rail and the armature; the cryogenic liquid pump 8 delivers the coolant in the liquid storage tank 9 to the cooling channel 4, such as Figure 4 shown. In this embodiment, the cooling channel 4 is a through hole.

[0043] The working process of the electromagnetic railgun is:

[0044] The guide rail 1 includes the first guide rail and the second guide rail, the circuit is turned on, the pulse power supply 3 provides current, the current passes through the first rail, the armature 2 and the seco...

Embodiment 2

[0057] Considering the movement characteristics of the armature, the temperature at the muzzle end is higher than that at the tail end of the gun. Therefore, the cooling of the track is mainly concentrated in the middle and rear sections. In actual use, the coolant is generally passed through the tail end of the gun. The reason is that: if The coolant is introduced from the muzzle end, then the nitrogen gas after liquid nitrogen gasification will be discharged from the tail end of the gun, and other equipment and cables are arranged at the tail end of the gun. Higher temperature nitrogen will reduce the service life of other equipment. And it will accelerate the aging of the cable.

[0058] In order to reduce the temperature at the muzzle end quickly, in this embodiment, the cooling channel is designed to deviate from the direction of the guide rail and the contact surface of the armature by 3-5mm at the distance from 1 / 3 to 2 / 3 of the muzzle. If the hardness of the track mate...

Embodiment 3

[0065] Considering both source and cost, the coolant in the embodiment of the present invention may also be water. Considering that ordinary tap water contains impurities, and the impurities have a conductive function and will affect the distribution of current density, therefore, the coolant in this embodiment is selected as deionized water.

[0066] Because only a small part of the deionized water is vaporized after flowing through the cooling channel, most of the deionized water still exists in the form of liquid water, so the track cooling system of this embodiment also includes a return pipe, and the deionized water coming out of the cooling channel passes through The return line is drained.

[0067] In order to fully exchange heat and cold between the deionized water and the guide rail, the cooling channel in this embodiment is set in a U-shape 7 . Considering that it is cumbersome to open a U-shaped cooling pipe in the track 1, it is difficult to directly open a hole i...

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Abstract

The invention relates to a system for cooling an electromagnetic rail gun rail and a cooling method cooling the electromagnetic rail gun rail, and belongs to the technical field of electromagnetic rail gun. The system and cooling method for cooling the electromagnetic rail gun rail solve the problem that the rail surface is damaged due to the fact that the rail surface is burnt through caused by not timely heat dissipation in an existing gun bore. The system for cooling the electromagnetic rail gun rail comprises a cooling channel arranged in the electromagnetic rail gun rail, a liquid storagetank used for storing cooling agents and a cryogenic liquid pump; the front segment of the cooling channel is arranged in the length direction of guide rails, and the rear segment of the cooling channel is arranged in the direction which deviates from contract surface of the guide rails and an armature; and the cryogenic liquid pump conveys the cooling agents in the liquid storage tank to the cooling channel. The system and cooling method for cooling the electromagnetic rail gun rail can cool the electromagnetic rail gun rail in time, so that the impedance of the rail is reduced, the energy loss is reduced, the accelerating force of the armature is increased, and thus the efficiency of the system is improved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic rail guns, in particular to a system and cooling method for cooling rails of electromagnetic rail guns. Background technique [0002] Electromagnetic rail gun is a new concept weapon, which is made according to the law of electromagnetic induction in physics. Its main principle is to use pulsed large current to generate electromagnetic force to accelerate projectiles. The magnitude of the electromagnetic force is proportional to the square of the current, and the electromagnetic force can be controlled by controlling the magnitude of the current, thereby controlling the acceleration process of the projectile. [0003] For the continuous launch electromagnetic railgun, during the armature launch process, due to the electrical contact problem of the armature rail, a large amount of heat is generated on the contact surface of the armature rail, and the heat dissipation in the gun bore is not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41B6/00F25B43/00F25D3/10
CPCF25B43/006F25D3/10F41B6/006
Inventor 刘辉
Owner BEIJING MECHANICAL EQUIP INST
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