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10MW axial flow sCO2 turbine

A turbine and axial flow technology, which is used in machines/engines, leakage prevention, steam engine installations, etc., can solve the problems of difficult design of supercritical carbon dioxide turbines, and achieve the effects of low thermal stress, high efficiency and good strength

Pending Publication Date: 2022-03-22
HARBIN TURBINE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the difficulty in the design of supercritical carbon dioxide turbine due to the drastic change of supercritical carbon dioxide near the critical point, which in turn causes the design and manufacture of supercritical carbon dioxide turbine to become a constraint. 2 A major bottleneck of power generation technology, and then provide a 10MW axial flow sCO 2 turbine

Method used

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  • 10MW axial flow sCO2 turbine
  • 10MW axial flow sCO2 turbine
  • 10MW axial flow sCO2 turbine

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specific Embodiment approach 1

[0026] Specific implementation mode one: combine Figure 1 to Figure 3 Describe this embodiment, a 10MW axial flow sCO of this embodiment 2 Turbine, which includes a turbine body, the turbine body adopts a single-cylinder single-exhaust structure, and the turbine body includes a main steam regulating valve 12, a cylinder module, a front bearing box 1, a front support thrust bearing 2, and the front part of the cylinder End air seal 3, cylinder rear end air seal 7, rear support bearing 8, rear bearing box 9 and base frame 10, the cylinder module is a double-layer cylinder structure, and the cylinder module includes outer cylinder 4, inner cylinder 5 and rotor 6, the rotor 6 is arranged horizontally, one end of the rotor 6 is inserted into the inner ring of the front support thrust bearing 2, the front support thrust bearing 2 is installed on the front bearing box 1, and the other end of the rotor 6 is inserted into the inner ring of the rear support bearing 8 , the rear suppor...

specific Embodiment approach 2

[0027] Specific implementation mode two: combination Figure 1 to Figure 3 To illustrate this embodiment, the turbine body of this embodiment also includes two guide keys 11, and the two sides of the bottom end of the outer cylinder 4 are respectively connected to the front bearing housing 1 and the rear bearing housing 9 through the two guide keys 11. So set, the absolute dead point of the unit stator is set at the bearing center line of the rear bearing box 9, and the relative dead point of the rotor 6 is set at the front bearing box 1 thrust plate. During operation, the cylinder expands to the front bearing housing 1 side, pushes the front bearing housing 1 to move forward through the support arm (cat claw), and the rotor 6 expands to the rear bearing housing 9 side with the thrust bearing of the front bearing housing 1 as the dead point. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, the turbine body of this embodiment also includes a thrust balance hub 15, a thrust balance hub 15 is provided between the intake side of the inner cylinder 5 and the rotor 6, and the thrust balance hub 15 is installed in the inner cylinder 5 on the inner wall. In this way, the thrust balance hub structure is set on the intake side, and the thrust generated by the turbine during operation can be internally balanced to ensure that the overall thrust of the unit is always within the range that the thrust bearing can bear. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a 10MW axial flow sCO2 turbine, and relates to the technical field of supercritical carbon dioxide power generation. According to the method, the problem that the design and manufacturing of the supercritical carbon dioxide turbine become a big bottleneck restricting the sCO2 power generation technology due to the fact that the design difficulty of the supercritical carbon dioxide turbine is large due to the fact that the supercritical carbon dioxide changes severely near the critical point is solved. Two ends of a rotor are respectively inserted into a front support thrust bearing and a rear support bearing, an outer cylinder and an inner cylinder are sequentially and coaxially sleeved on the rotor from outside to inside, the outer wall of the inner cylinder is fixedly connected with the inner wall of the outer cylinder through a support rod, and two ends of the outer cylinder are respectively and fixedly connected with a front bearing box and a rear bearing box through a plurality of support arms. A volute communicated with a unit in a through-flow mode is machined on the exhaust side of the inner air cylinder in the circumferential direction, the main steam adjusting combination valve is installed on the outer air cylinder, and the air outlet end of the main steam adjusting combination valve is communicated with the volute of the inner air cylinder. The turbine can be suitable for power generation of various heat sources, and is particularly suitable for power generation circulation of a 10MW photo-thermal power station.

Description

technical field [0001] The invention relates to the technical field of supercritical carbon dioxide power generation, in particular to a 10MW axial flow sCO2 turbine. Background technique [0002] supercritical carbon dioxide (sCO 2 ) has the characteristics of high density, small flow resistance and high efficiency, sCO 2 Power generation-related technologies have become national key projects, but sCO 2 The physical properties are unique, the changes are drastic near the critical point, and the design is difficult. At present, the axial flow sCO at home and abroad 2 Transmitters are in the research and development testing stage. The design and manufacture of supercritical carbon dioxide turbines have become constraints on sCO 2 A major bottleneck in power generation technology. Contents of the invention [0003] The purpose of the present invention is to solve the difficulty in the design of supercritical carbon dioxide turbine due to the drastic change of supercriti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D1/04F01D15/10F01D25/28F01D3/00F01D25/16F01D11/04F01D17/10F01K25/10
CPCF01D1/04F01D15/10F01D25/28F01D3/00F01D25/16F01D11/04F01D17/105F01K25/103
Inventor 刘志德潘春雨徐鹏余海鹏尉坤张春秀徐林峰魏红阳翟彦凯代有为
Owner HARBIN TURBINE
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