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Shaft sealing system for organic working medium turbine-gear case power generation device

A power generation device and gearbox technology, which is applied to the sealing of the engine, mechanical equipment, engine components, etc., can solve the problems of unstable operation of the rotating shaft, poor working environment of the shaft seal, and seal failure, so as to save resources and improve sealing performance. Effect

Active Publication Date: 2017-11-03
ACADEMY OF AEROSPACE PROPULSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frequent changes in working conditions will lead to unstable operation of the shaft, poor working environment of the shaft seal, and even seal failure.

Method used

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  • Shaft sealing system for organic working medium turbine-gear case power generation device
  • Shaft sealing system for organic working medium turbine-gear case power generation device

Examples

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Effect test

Embodiment Construction

[0022] The invention provides a shaft sealing system for an organic working medium turbine-gearbox power generation device. The system can not only realize the goal of zero leakage of the organic working medium and air from entering the power generation device, but also realize the The heat source fluctuates, and the sealing working state is adjusted to the best goal.

[0023] The existing turbine device 2 includes a volute 27, an impeller 19 and a turbine sealing casing 20. The volute 27 and the impeller 19 generate power through an organic working medium, and the turbine sealing casing 20 prevents leakage of the sealing oil.

[0024] Such as figure 1 and figure 2 As shown, the system includes a double-end contact mechanical seal assembly 5, a seal chamber temperature sensor 3, a seal chamber pressure sensor 4, a blocking oil station 10, a throttle valve 12, a blocking oil supply pipeline 1, and an overflow valve 17. Flow meter 18, oil supply pressure sensor 16 and blocked...

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Abstract

A shaft sealing system for an organic working medium turbine-gear case power generation device comprises a double-end-face contact type mechanical sealing assembly, a blocking and sealing oil station, a throttle valve, an overflow valve, a flow meter, a sealing cavity temperature sensor, a sealing cavity pressure sensor, an oil supply pressure sensor, a blocking and sealing oil supply pipeline and a blocking and sealing oil recycling pipeline. The double-end-face contact type mechanical sealing assembly is arranged on a gear case high-speed shaft and located in a turbine sealing shell. The turbine sealing shell is provided with a blocking and sealing oil supply port and a blocking and sealing oil return port. The blocking and sealing oil supply port communicates with the blocking and sealing oil station through a blocking and sealing oil supply pipeline. The blocking and sealing oil return port communicates with the blocking and sealing oil station through a blocking and sealing oil recycling pipeline, and the turbine sealing shell is provided with the sealing cavity pressure sensor and the sealing cavity temperature sensor. The blocking and sealing oil supply pipeline is provided with the overflow valve, the flow meter and the oil supply pressure sensor. The blocking and sealing oil recycling pipeline is provided with the throttle valve. According to the system, working medium leakage can be avoided, and air can be prevented from entering the power generation device.

Description

technical field [0001] The invention belongs to the technical field of organic working medium power generation, and in particular relates to a shaft sealing system for an organic working medium turbine-gearbox power generation device. Background technique [0002] Improving energy utilization is an important part of my country's energy development strategy. The traditional use of waste heat steam to drive steam turbines for power generation is suitable for the recovery of high and medium temperature waste heat. There is no effective technical means to recover a large amount of low-temperature waste heat in various industrial fields. [0003] The organic working fluid turbine-gearbox power generation device uses halogenated hydrocarbons, hydrofluorocarbons and other low-boiling point working fluids as the medium to drive the turbine to do work. After deceleration, it drives the generator to work, realizing low-temperature heat energy recovery in different temperature ranges. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16N31/00
CPCF16J15/162F16N31/00Y02E10/20
Inventor 赵武刘乐王凯巫志华陶加银李顺段捷黄智勇
Owner ACADEMY OF AEROSPACE PROPULSION TECH
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