Supercritical carbon dioxide closed type circulating turbine compressor

A technology of turbo compressor and carbon dioxide, which is applied in the direction of electromechanical devices, mechanical equipment, steam engine devices, etc., can solve the problems of leakage of compressor impeller and turbine in turbine power generation devices, and achieve the effect of reducing leakage loss and improving structural strength

Active Publication Date: 2018-10-12
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology

[0004] In view of this, the present invention aims to propose a supercritical carbon dioxide closed-cycle turbocompressor to

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  • Supercritical carbon dioxide closed type circulating turbine compressor

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] Embodiment of the present invention a kind of supercritical carbon dioxide closed cycle turbo compressor, such as figure 1 As shown, it includes a power generation assembly unit, a compressor impeller 11, a turbine 15, a compressor end casing 22 and a turbine end casing 23, and the power generation assembly unit, the compressor impeller 11, and the turbine 15 are arranged coaxially in sequence, and are located by The compressor end casing 22 and the turbine end casing 23 are closed to form a cavity.

[0024] The compressor impeller 11 and the turbine 15 are integrated, arranged back to back, and have better strength.

[0025] The power generation assembly unit includes a generat...

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Abstract

The invention provides a supercritical carbon dioxide closed type circulating turbine compressor which comprises a power generation assembly unit, a gas compressor impeller, a turbine, a gas compressor end shell and a turbine end shell. The power generation assembly unit, the gas compressor turbine and the turbine are sequentially arranged coaxially and located in a cavity formed by the gas compressor end shell and the turbine end shell in a closed manner. The gas compressor impeller and the turbine are integrated and arranged in a back-to-back manner. The supercritical carbon dioxide closed type circulating turbine compressor is located in the closed space, and the leakage loss is reduced. The gas compressor impeller and the turbine are integrated and arranged in a back-to-back manner, and the structural strength is good.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and in particular relates to a supercritical carbon dioxide closed cycle turbo compressor. Background technique [0002] The flow performance of supercritical carbon dioxide is similar to that of gas, and its density is close to that of liquid. It can be used in closed cycle power generation system to make the system have high efficiency. [0003] However, the pressure of carbon dioxide in the supercritical state in the system is very high, exceeding 7.38MPa. The leakage of the turbine power generation device and the strength of the compressor impeller and turbine are technical problems that need to be solved. Contents of the invention [0004] In view of this, the present invention aims to propose a supercritical carbon dioxide closed-cycle turbocompressor to solve the problems of the leakage of the turbine power generation device and the strength of the compressor impeller and the ...

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Application Information

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IPC IPC(8): F01D25/24F01D5/02F04D29/28F01K25/10F01K7/32F01D15/10H02K7/18
CPCF01D5/02F01D15/10F01D25/24F01K7/32F01K25/103F04D29/266F04D29/284H02K7/1823
Inventor 王振彪田伟
Owner CHINA NORTH ENGINE INST TIANJIN
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