Rotor sealing structure of self-adaptive radial flow turbocharging system
A technology of turbocharging system and rotor sealing, which is applied to gas turbine devices, components of pumping devices for elastic fluids, preventing leakage, etc., can solve the problems of short service life, sealing failure, and easy loss of elasticity of sealing rings, etc. Achieve the effect of improving service life, reliable sealing and improving self-adaptability
Pending Publication Date: 2022-02-11
BEIJING POWER MACHINERY INST
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AI Technical Summary
Problems solved by technology
This sealing method has the advantages of simple structure, small leakage, and low manufacturing cost, but it also has problems such as short life, especially when it is used for high-temperature end sealing, the sealing ring tends to lose its elasticity when it works for a long time, resulting in seal failure. It is the main factor restricting the working life of the system
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[0037] A rotor sealing structure of an adaptive radial flow turbocharging system, comprising an adaptive shaft sleeve 1, a sealing groove flap 2, a base 3, a compression end cover 4, fixing screws and locking screws.
[0038] The central part of the self-adaptive bushing 1 has an axial through hole 5 for installing it on the rotor, and the outer side of the self-adaptive bushing 1 is provided with ring teeth 6 and ring grooves 7 in the axial direction. The ring tooth 6 of the adaptable bushing 1 has a triangular cross-section, the ring groove 7 of the adaptive bushing 1 has a trapezoidal cross-section, and the adaptive bushing 1 is made of high-temperature-resistant and wear-resistant materials;
[0039] The axial center of the sealing groove petal 2 is provided with a ring groove 9 and a ring tooth 8 respectively matched with the ring tooth 6 and the ring groove 7 of the self-adaptive bushing 1, and the ring tooth 8 of the sealing groove petal 2 The section is trapezoidal, th...
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The invention relates to a rotor sealing structure of a self-adaptive radial flow turbocharging system. The sealing structure comprises a self-adaptive shaft sleeve, a sealing groove petal, a base, a pressing end cover, a fixing screw and a locking screw. According to structural parameters of a turbocharging power generation system, firstly, size parameters of a self-adaptive shaft sleeve, a sealing groove petal, a base, a pressing end cover, a fixing screw and a locking screw are determined, secondly, machining of a sealing structure assembly is completed, and on the basis, the sealing groove petal and the base are assembled and fixed through the fixing screw; and then, the pressing end cover is assembled with the base and the sealing groove petal, the pressing end cover is installed on the base and fastened through the locking screws, and then a complete sealing structure is formed. The sealing structure is reliable in sealing, high in adaptability, good in manufacturability and capable of meeting the rotor sealing requirement of a radial-flow turbocharging power generation system.
Description
technical field [0001] The invention belongs to the structural design field of a radial flow turbocharger power generation system, and in particular relates to a rotor sealing structure of an adaptive radial flow turbocharger system. Background technique [0002] The radial flow turbocharged power generation system can convert thermal energy to mechanical energy through thermal cycle processes such as heat absorption, expansion and work, heat release and compression with the help of gas working fluid under closed conditions, and further convert mechanical energy into electrical energy by using a motor. A typical radial flow turbocharged power generation system mainly includes turbines, compressors, motors and other components in structure. [0003] As one of the most core components in the turbocharged power generation system, the rotor plays a decisive role in the stable operation of the system, thermoelectric conversion efficiency, reliability and life. During the operati...
Claims
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IPC IPC(8): F01D11/00F04D29/10F04D29/62F02C7/28
CPCF01D11/003F04D29/102F04D29/624F02C7/28F05D2220/40
Inventor 王阿娜王正
Owner BEIJING POWER MACHINERY INST