Helium pressure tuner pressure precision control apparatus and method

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...

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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

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