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After-boosted turbo expander for gas bearing

A technology of gas bearings and supercharged turbines, which is applied to bearings, shafts, bearings, mechanical equipment, etc., can solve the problems of low reliability, small processing gas volume, and low efficiency, and achieve high reliability and large processing gas volume.

Inactive Publication Date: 2011-04-06
苏州制氧机股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the transformation and development of small-scale air separation equipment to large-scale air separation equipment, the existing turboexpander began to fail to meet the needs of large-scale air separation equipment, showing technical problems such as small gas volume, low efficiency, and low reliability.

Method used

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  • After-boosted turbo expander for gas bearing
  • After-boosted turbo expander for gas bearing
  • After-boosted turbo expander for gas bearing

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Embodiment Construction

[0020] The best mode for carrying out the present invention will be described below with reference to the drawings.

[0021] Such as figure 1 As shown, the gas bearing post-supercharged turbo expander involved in the present invention includes an intermediate casing 2, a turbine volute 1 is installed on the left end of the intermediate casing 2, and a turbocharger volute 3 is installed on the right end of the intermediate casing 2. A rotor 8 is rotatably arranged in the middle casing 2, and an expansion wheel 4 and a supercharging wheel 12 are respectively arranged in the turbine volute 1 and the turbocharger volute 3 at both ends of the rotor 8. It should be noted that: the rotor 8 is sleeved with a left gas bearing 6 and a right gas bearing 9, the left gas bearing 6 is used to support the expansion wheel 4, and the right gas bearing 9 is used to support the supercharging wheel 12 . The expansion wheel 4 is a high-efficiency radial-axis flow centripetal reaction type; the b...

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Abstract

The invention provides an after-boosted turbo expander for a gas bearing. The after-boosted turbo expander comprises a middle case. The left end of the middle case is provided with a turbo volute and the right end of the middle case is provided with a booster volute. A rotor is rotationally arranged in the middle case. Two ends of the rotor are respectively provided with an expansion wheel and a boosted wheel which are respectively arranged in the turbo volute and the booster volute. A left gas bearing and a right gas bearing are sleeved on the rotor. The left gas bearing is used for supporting the expansion wheel and the right gas bearing is used for supporting the boosted wheel. A bearing stop collar is arranged between the left gas bearing and the right gas bearing. The bearing stop collar is sleeved outside the rotor, and fixed with the middle case, wherein the expansion wheel is a radial axial flow centripetal reactionary expansion wheel, and the boosted wheel is a front tilting rear bending type ternary flow closed wheel type boosted wheel. The after-boosted turbo expander for the gas bearing has the advantages of large processed air volume, high efficiency and high reliability.

Description

technical field [0001] The invention relates to a supercharged turbo expander, in particular to a gas bearing post-supercharged turbo expander. Background technique [0002] The supercharged turbo expander is a key part necessary for air separation equipment, natural gas and petroleum gas liquefaction separation equipment and low temperature crushing equipment to obtain cooling capacity, and is the heart to ensure the stable operation of the entire set of air separation equipment. The main principle is to use the gas with a certain pressure to perform adiabatic expansion in the turbo expander to do external work and consume the internal energy of the gas itself, so that the gas itself is strongly cooled to achieve the purpose of refrigeration. The energy output from the turboexpander is recovered by the coaxial compressor or consumed by the braking fan. [0003] With the transformation and development of small-scale air separation equipment to large-scale air separation equ...

Claims

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Application Information

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IPC IPC(8): F01D15/08F01D25/16F01D11/00F01D5/14F16C32/06
Inventor 徐友亮
Owner 苏州制氧机股份有限公司
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