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A system and cooling method for cooling electromagnetic rail gun rails

An electromagnetic railgun and cooling channel technology, applied in the field of electromagnetic railguns, can solve the problems of rail surface ablation, untimely heat dissipation of the gun bore, difficult operation and control, etc.

Active Publication Date: 2021-05-18
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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  • A system and cooling method for cooling electromagnetic rail gun rails
  • A system and cooling method for cooling electromagnetic rail gun rails
  • A system and cooling method for cooling electromagnetic rail gun rails

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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 and a cooling method for cooling rails of electromagnetic rail guns, belonging to the technical field of electromagnetic rail guns, and solves the problem that the heat dissipation in the existing gun bore is not timely, resulting in ablation of the rail surface and damage to the rail surface. A system for cooling rails of electromagnetic railguns, comprising a cooling passage arranged in the rails of electromagnetic railguns, a liquid storage tank for storing coolant, and a cryogenic liquid pump; the front section of the cooling passage is arranged along the length direction of the guide rail, and the cooling The rear section of the channel is set in the direction of the contact surface of the guide rail and the armature; the cryogenic liquid pump delivers the coolant in the liquid storage tank to the cooling channel. The invention can cool the track of the electromagnetic rail gun in real time, thereby reducing the impedance of the track, reducing energy loss, increasing the acceleration force of the armature, and further increasing the efficiency of the system.

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 Patents(China)
IPC IPC(8): F41B6/00F25B43/00F25D3/10
CPCF25B43/006F25D3/10F41B6/006
Inventor 刘辉
Owner BEIJING MECHANICAL EQUIP INST