Turbine rotor arrangement system

A turbine and rotor technology, applied in the directions of preventing leakage, supporting elements of blades, engine elements, etc., can solve the problems of low safety performance and economic performance, large overall span of the rotor, low safety performance, etc., and is conducive to the overall structural design. , the effect of shortening the overall span, improving safety and economic performance

Pending Publication Date: 2021-11-16
SHANGHAI POWER EQUIP RES INST
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Problems solved by technology

[0002] Supercritical carbon dioxide turbine rotors are suitable for power generation equipment. Most of the current balance pistons are placed in the high-temperature section of the turbine. Due to the large air leakage radius, in order to control the air leakage, the length of the balance piston is relatively long, resulting in The high temperature section is too long, which makes the safety

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[0031] The present invention is further detailed below with reference to the accompanying drawings and examples. It will be appreciated that the specific embodiments described herein are merely illustrative of the invention and are not limited thereto. It will also be also to be described, and only the parts associated with the present invention are shown in the drawings rather than all structures.

[0032] In the description of the present invention, the term "connected", "connection", "fixed", unless otherwise specified, "connected", "fixed", for example, may be a fixed connection, or a detachable connection, or integral However, it can be a mechanical connection or an electrical connection; it can be directly connected, or the intermediate medium can be indirectly connected, which may be a communication between two elements or two components. Relationship. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art.

[0033] ...

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Abstract

The invention relates to the technical field of turbine rotating machinery, and discloses a turbine rotor arrangement system. The turbine rotor arrangement system comprises a turbine cylinder, a rotating shaft, a boss and a first air inlet, the rotating shaft is arranged in the turbine cylinder, and the rotating shaft is sequentially provided with a first low-temperature area, a high-temperature area and a second low-temperature area in the axial direction of the rotating shaft; the boss is arranged in the first low-temperature area of the rotating shaft, and the periphery of the boss is sleeved with a first dry gas seal; and the first air inlet is formed in the side, close to the high-temperature area, of the boss and used for communicating with a cooling air source. According to the turbine rotor arrangement system, a balance disc does not need to be arranged, through-flow and axial thrust generated by the sealing teeth are balanced through thrust generated by the differential pressure before and after the boss of the dry gas seal is installed, the overall operation efficiency of a unit is high, the overall span of the rotor is small, and the safety performance and the economic performance of the unit are good.

Description

technical field [0001] The invention relates to the technical field of turbine rotating machinery, in particular to a turbine rotor arrangement system. Background technique [0002] Supercritical carbon dioxide turbine rotors are suitable for power generation equipment. Most of the current balance pistons are placed in the high-temperature section of the turbine. Due to the large air leakage radius, in order to control the air leakage, the length of the balance piston is relatively long, resulting in The high temperature section is too long, which makes the safety performance of the unit lower. There are also a small number of balance pistons that are arranged in the low temperature section, but the existing steam cycle rotor arrangement has a large balance disc length and diameter, resulting in a large overall span of the rotor, which is not conducive to the overall structural design of the unit, making it The safety performance and economic performance are low. Contents...

Claims

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Application Information

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IPC IPC(8): F01D11/04F01D25/12F01D25/16F01D5/06F01D25/24F01D25/26F01D25/30
CPCF01D11/04F01D25/12F01D25/16F01D5/06F01D25/24F01D25/26F01D25/30
Inventor 李振亚赵峰朱幼君范雪飞张广源边文杰
Owner SHANGHAI POWER EQUIP RES INST
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