Helium pressure tuner pressure precision control apparatus and method

A precision control and tuner technology, applied in fluid pressure control, electric fluid pressure control, non-electric variable control and other directions, can solve the problems of reducing feedback speed, long cycle, mechanical mechanism failure, etc., and achieve accurate displacement. Effect

Active Publication Date: 2016-12-21
WUXI HONGRUI AEROSPACE MECHANICAL & ELECTRICAL EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the control process of this method, the vibration of the mechanical transmission mechanism itself will cause certain interference to the frequency signal of the cavity. In addition, due to the defects of the mechanical mechanism itself, when a control signal is sent to the transmission device, the mechanical mechanism cannot quickly Make corresponding adjustments, especially for small external noises, the response of the mechanical mechanism is not sensitive, which greatly reduces the speed of each feedback, making the cycle of the entire control system very long, when the external disturbance changes quickly , unable to make timely adjustments to adapt to the impact of external interference on the frequency of the cavity

Method used

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  • Helium pressure tuner pressure precision control apparatus and method

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Embodiment 1

[0024] Embodiment 1, referring to the accompanying drawings, a helium pressure tuner pressure precision control device, it includes: decompression gas supply system, buffer system, adjustment system, pressure stabilization system and gas collection system;

[0025] The decompression and air supply system includes: the first decompression valve 1, the first pressure sensor 2 and the first electromagnetic isolation valve 3 connected in sequence through stainless steel pipelines;

[0026] The buffer system includes: a buffer tank 20 connected to the first electromagnetic isolating valve 3, a second pressure sensor 4 for monitoring the helium pressure in the buffer tank 20, a first automatic exhaust valve 5 for controlling the pressure range of the helium in the buffer tank 20, connecting The second electromagnetic isolating valve 6 at the output end of the buffer tank 20;

[0027] The adjustment system includes: a first high-precision mass flow controller 7 and a first electromag...

Embodiment 2

[0031] Embodiment 2, a helium pressure tuner pressure precision control method, it uses the helium pressure tuner pressure precision control device as described in embodiment 1, and comprises the following steps:

[0032] A. The pressure precision control device of the helium pressure tuner starts the initialization process after starting up, that is: according to the pressure conditions in the buffer tank 20, the surge tank 21 and the gas collection tank 22, by controlling the first electromagnetic isolation valve 3 and the first automatic exhaust The gas valve 5, the second electromagnetic isolation valve 6, the first electromagnetic regulating valve 8, the second electromagnetic regulating valve 11, and the second automatic exhaust valve 13 are switched off to achieve the initial pressure value in each tank;

[0033] B. After 2 seconds of initialization, the pressure precision control device of the helium pressure tuner automatically enters the running state, monitors the fr...

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Abstract

The invention belongs to the technical field of nuclear energy utilization and especially relates to a helium pressure tuner. The technical scheme is as follows: the helium pressure tuner pressure precision control apparatus comprises a pressure reduction energy invigorating system, a buffer system, an adjustment system, a pressure stabilization system and a gas collection system. The control method is as follows: first of all, after high-purity high-pressure helium goes into the buffer system through the pressure reduction energy invigorating system, low-pressure helium is formed; when the apparatus runs, the helium in a buffer tank goes into the pressure stabilization system through the adjustment system, the pressure stabilization system is connected in series with a helium pressure tuner, accurate control of the displacement amount of the helium pressure tuner is realized through controlling the helium flows of an air inlet system and an exhaust system, and accordingly, the cavity center frequency is stable. According to the invention, through accurate control of pressure in the voltage stabilization tank, accurate control of the displacement amount of the helium pressure tuner is realized, the cavity frequency can be rapidly and accurately adjusted nearby the center frequency, and final relative errors do not exceed 0.03%.

Description

technical field [0001] The invention belongs to the technical field of nuclear energy utilization, in particular to a helium pressure tuner. Background technique [0002] Nuclear energy is a very important energy source in today's society. Compared with coal, oil, and natural gas, nuclear energy is widely used by various countries because of its clean production methods and efficient energy conversion. For example, a nuclear power plant obtains a large amount of heat energy through nuclear fission technology, and converts heat energy into electrical energy through a power plant. In this process, a large amount of exhaust gas and inhalable particulate emissions produced by thermal power plants will not be produced, but the disposal of nuclear waste has become a huge problem. There are currently two nuclear material circulation modes in the world, "open loop" and "closed loop". Only after tens of thousands of years of storage can the impact on the environment be basically el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D16/20
CPCG05D16/204Y02E30/30
Inventor 李小金蔡宇宏李正清张海龙何丹
Owner WUXI HONGRUI AEROSPACE MECHANICAL & ELECTRICAL EQUIP CO LTD
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