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A gas high-tight medium-speed pressure regulation system and method

A pressure regulating system and high sealing technology, applied in the direction of reducing greenhouse gases, climate sustainability, liquid variable capacity machinery, etc., to improve the ability of rapid power transient test, increase irradiated power, improve compression boost and gas The effect of loop drop

Active Publication Date: 2021-07-27
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, expensive neutron-absorbing gas itself or nuclear reaction products are very dangerous, and the system needs to be sealed with ultra-high performance to ensure personnel safety and improve test economy.

Method used

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  • A gas high-tight medium-speed pressure regulation system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A process flow diagram of a medium-speed high-seal medium-speed pressure regulating system, such as figure 1 shown. The medium-speed pressure-regulating absorption of the present invention is mainly composed of a gas circuit, an inflatable tank, a deflation tank, a pneumatic compressor, a driving gas cylinder, a gas storage tank, a vacuum pump, valves, pipelines and instruments etc. The gas circuit is a high-seal forced circulation circuit formed by connecting the reaction gas shield inside the reactor with the suction bed outside the reactor, gas circulation pump and other equipment. And connect the reaction gas shield through the gas circuit. The inlet and outlet of the bellows air chamber in the inner cavity of the pneumatic compressor are connected with the inlet of the air charging tank and the outlet of the deflation tank, and the air chamber of the outer cavity cylinder is connected with the air intake and exhaust pipes driven by air pressure. The medium-speed...

Embodiment 2

[0036] The difference between this implementation example and Example 1 is that since the pneumatic compressor can only suck 1 / 3 of the process gas from the vent tank at a time into the inner cavity bellows air chamber to compress and pressurize it to the inflatable tank, in order to reduce the residual gas in the vent tank Consumption of expensive process gas in the gas tank, increasing the final pressure of the compressed gas in the gas tank. The present invention uses the air pressure-driven metal bellows diaphragm compressor's repeated rounds of filling and deflation methods to suck and compress the gas in the gas deflation tank, reduce the amount of gas in the deflation tank, and increase the pressure in the gas inflation tank. The specific method is as follows :

[0037]On the basis of Embodiment 1, the medium-speed pressure regulating system of the present invention subsequently closes the communication valve between the pneumatic compressor and the inflation tank, open...

Embodiment 3

[0039] The difference between this implementation example and Embodiments 1 and 2 is that when it is necessary to pump the expensive process gas lower than normal pressure in the deflation tank into the pneumatic compressor for compression, further reduce consumption and improve the process in the inflation tank When the final compression pressure of the gas is reached, the present invention uses a vacuum-driven and air-pressure-driven double-acting metal bellows diaphragm pneumatic compressor to suck the gas in the degassing tank (which may also include a gas circuit and a gas screen), and after compression and boosting Discharge into the inflatable tank, the specific setting method is as follows:

[0040] When the gas pressure in the vent tank is lower than normal pressure, it cannot flow naturally into the pneumatic compressor, and the suction process needs to be converted from air pressure drive to vacuum drive. In order to realize the vacuum drive and suck the expensive p...

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Abstract

The invention discloses a gas high-seal medium-speed pressure regulating system and method. Consisting of inflatable tanks, deflated tanks, pneumatic compressors, driving gas cylinders, vacuum pumps, gas storage tanks, valves, pipes and instruments, etc., the entire system is sealed with all metal materials, and multi-level anti-leakage measures are set. The medium-speed inflation and deflation process between the gas circuit and the gas-filling tank and the gas-deflation tank respectively increases or decreases the pressure of the reaction gas screen at a medium speed. The pneumatic compressor is a double-acting metal bellows diaphragm compressor driven by air pressure and vacuum. It realizes the intake and exhaust process of the drive gas by connecting the intake line of the drive cylinder and the exhaust line of the ventilation, and repeatedly sucks and releases the gas tank. The process gas inside is compressed into medium pressure and then discharged into the inflatable tank, and the vacuum pump can also vacuum-drive the pneumatic compressor to suck out the process gas below normal pressure in the degassing tank, and then pressurize and pressurize it to inflate through the air pressure drive. cans to reduce residue. The invention can be used for gas-driven lifting liquid and nuclear fuel power transient test and the like.

Description

technical field [0001] The present invention relates to the field of gas test in petrochemical industry and nuclear fuel power transient test, in particular to a gas high-seal medium-speed pressure regulating system and method, which can carry out research on the production, treatment and experiment of high-purity, expensive and dangerous gases It can also adjust the pressure of neutron absorbing gas at a medium speed to perform power transient test on nuclear fuel elements. Background technique [0002] In oil and gas extraction, the air lifter introduces air into a pipe immersed in the lifted liquid to lift the liquid, and it can be used to pump oil from oil and gas wells or pump water from mines. In radiochemical and nuclear chemical industries, gas liquid lifters are widely used in circulating sampling, pumping of solvent extraction liquid, circulating and stirring of radioactive waste liquid, etc. After pressure, it is discharged at a medium speed to reduce the pressur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B45/053F04B41/02F04B49/08
CPCF04B41/02F04B45/053F04B49/08Y02E70/30
Inventor 李炳林汪海刘晓松冯明全孙胜张帅曹娜张亮斯俊平傅源杰
Owner NUCLEAR POWER INSTITUTE OF CHINA
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