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Hydrogen turbine expansion device

A turbine expansion and spindle technology, applied in the field of hydrogen liquefaction, can solve the problems of inability to achieve stable refrigeration in the liquid hydrogen temperature zone, poor cooling effect of circulating hydrogen gas, and affect hydrogen liquefaction efficiency, so as to improve hydrogen liquefaction efficiency and avoid flash evaporation , good cooling effect

Pending Publication Date: 2018-11-06
ZHANGJIAGANG FURUI HYDROGEN ENERGY EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

This throttle valve refrigeration method has the following disadvantages: the cooling effect on circulating hydrogen is poor, it cannot provide sufficient cooling capacity for hydrogen liquefaction, and it is prone to flash evaporation and high entropy production. The stable refrigeration of the zone does not involve the expansion of the turbine at the temperature of 20K liquid hydrogen, which affects the hydrogen liquefaction efficiency

Method used

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  • Hydrogen turbine expansion device

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 Shown, described a kind of hydrogen turboexpansion device, comprises frame 1, is provided with the main shaft 2 that can freely radially rotate in frame 1 on frame 1, is provided with turbine 3 at one end of main shaft 2, The wheel shaft of the turbine 3 is coaxially fixedly connected with the main shaft 2, and the main shaft 2 is provided with a labyrinth seal 12 for sealing the gap between the main shaft 2 and the turbine 3. In actual use, the high-pressure hydrogen compressor 11 is used to seal the labyrinth. The sealed heating gas is continuously circulated in the sleeve 12, which not only has a good sealing effect, but also prevents the labyrinth seal sleeve 12 from being affected by the cooling capacity of the back side of the turbine wheel 3, thereby prolonging the service life of the labyrinth seal sleeve and improving the labyrinth. Th...

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Abstract

The invention discloses a hydrogen turbine expansion device. The hydrogen turbine expansion device comprises a rack; a spindle capable of freely and radially rotating in the rack is arranged on the rack; a turbine is arranged at one end of the spindle; an axle of the turbine and the spindle are coaxially and fixedly connected; and labyrinth sealing sleeves for sealing a gap between the spindle andthe turbine are arranged on the spindle. The hydrogen turbine expansion device has the advantages that the cooling effect on circulating hydrogen is good, the cooling capacity demand of sufficient depth can be provided for hydrogen liquefaction, the flash evaporation phenomenon can be effectively avoided, entropy production can also be lowered, meanwhile, stable refrigeration in a liquid hydrogentemperature zone can be achieved in the civil field, turbine expansion related to 20 K liquid hydrogen temperature is achieved, and the hydrogen liquefaction efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of hydrogen liquefaction, in particular to a hydrogen turbine expansion device. Background technique [0002] With the development of the economy, the human demand for energy is increasing day by day, and the amount of oil and coal as the main energy sources is increasingly exhausted. The challenge facing mankind is to develop efficient and clean secondary energy sources. Considering factors such as economy, technology, mobility, and environmental friendliness, hydrogen energy is the power fuel most likely to replace petroleum in the future. The development of hydrogen energy will also drive the development of various renewable energy sources and trigger a new energy revolution. And thus make mankind enter the "hydrogen economy era". Liquid hydrogen is a colorless, transparent low-temperature liquid with a normal boiling point of 20.38K and a density of about 1 / 14 of that of water. 1m 3 The gasification o...

Claims

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Application Information

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IPC IPC(8): F25B9/06F25J1/00F25J1/02
CPCF25B9/06F25J1/001F25J1/0281F25B2309/005
Inventor 邬海强倪中华严岩魏蔚郭道峰况开锋王秋霞
Owner ZHANGJIAGANG FURUI HYDROGEN ENERGY EQUIP CO LTD
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