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Special high-air-flow rapid inflation valve for plasma fracture prevention

A plasma and atmospheric volume technology, applied in the fields of high-voltage technology, magnetic confinement fusion, high-pressure vessel technology, and vacuum technology, which can solve the problem that solenoid valves and piezoelectric crystal valves cannot satisfy rupture mitigation at the same time.

Active Publication Date: 2011-08-17
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Therefore, an inflation valve that can realize rapid and large amount of gas filling is a necessary tool for rupture mitigation in a tokamak device, while the currently available solenoid valve Neither can meet the requirements of fracture mitigation at the same time as piezoelectric crystal valves

Method used

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  • Special high-air-flow rapid inflation valve for plasma fracture prevention
  • Special high-air-flow rapid inflation valve for plasma fracture prevention

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Experimental program
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Embodiment Construction

[0019] see figure 1 , a large-volume fast inflation valve dedicated to plasma rupture protection, including a valve body 1, the valve body 1 includes a back pressure chamber 2 and a working gas chamber 3, and the back pressure chamber 2 and the working gas chamber 3 are respectively externally connected High-pressure gas source, the bottom of the working gas chamber 3 is provided with an air outlet 4 and is connected with a pipeline 5 leading to the vacuum chamber of the tokamak device; Extend into the back pressure chamber 2 and the working gas chamber 3 respectively, the lower end of the I-shaped valve core 6 is against the mouth of the gas outlet 4, and the I-shaped valve core 6 is surrounded by a plane spiral coil 7, the plane The two terminals of the helical coil 7 are respectively externally connected to the positive and negative terminals of the charging capacitor.

[0020] The back pressure chamber 2 and the working gas chamber 3 are sealed with a rubber ring; the I-s...

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Abstract

The invention discloses an air-flow-adjustable rapid inflation valve which can be applied to plasma fracture remission. According to the requirement of EAST Tokamak plasma fracture remission, a great amount of inert gas is inflated within 10 milliseconds within very short time, thus the plasma fracture remission is realized so as to remit the damage to a Tokamak device caused by the plasma fracture. According to the invention, a great amount of inert gas is inflated in the Tokamak device within 5 milliseconds to remit the damage caused by the plasma fracture. The inflation valve provided by the invention has another obvious advantage that the inflation valve can work close to a strong magnet field without being influenced by the magnetic field, which can play a role in remitting the fracture in terms of the use effect; and the successful research of the valve provides a solid and reliable experimental tool for fracture prevention physical research on EAST in the future.

Description

technical field [0001] The invention relates to the fields of vacuum technology, high-pressure container technology, high-voltage technology and magnetic confinement fusion, and in particular to a large-capacity rapid inflation valve for plasma rupture protection. Background technique [0002] In the tokamak discharge test, due to plasma control, magnetic fluid instability, impurities, high-energy escaping particles and other reasons, the rupture of the plasma is unavoidable. Especially in the main research content of realizing the steady-state operation of the tokamak fusion reactor—maintaining the discharge of the steady-state high-parameter plasma, the plasma rupture discharge will cause serious damage, such as the large thermal load of the first wall, the strong Mechanical stress, large escape current, etc., even cause serious damage to the target plate of the deflector, the first wall parts and even the device. Although the operating limits of different parameters of t...

Claims

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Application Information

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IPC IPC(8): F16K31/06F16K24/06
Inventor 张晓东庄会东
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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