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Waste heat recovery and power cooling combined supply system for ship gas turbine

A gas turbine and waste heat recovery technology, applied to heat exchangers, mechanical equipment, indirect heat exchangers, etc., to achieve the effects of improving overall efficiency, improving comfort, and reducing irreversible losses

Active Publication Date: 2021-01-01
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there are many international studies on the use of ORC to recover exhaust heat from gas turbines, there are few cases where ORC technology is actually applied to the recovery of waste heat from marine gas turbines.

Method used

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  • Waste heat recovery and power cooling combined supply system for ship gas turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1As shown, the ship gas turbine waste heat recovery system includes ORC liquid supply pump 1, ORC steam generator 2, ORC superheater 3, ORC turbine 4, ejector 5, refrigeration evaporator 6, and condenser 7. Low-pressure liquid supply pump 8, low-pressure preheater 9, low-pressure steam generator 10, low-pressure superheater 11, steam drum 12, mixer 13, regulating valve, stop valve and throttle valve 18; ship gas turbine flue gas in sequence After passing through the ORC superheater 3, ORC steam generator 2, low-pressure superheater 11, low-pressure steam generator 10 and low-pressure preheater 9, the heat is released from the flue gas outlet of the low-pressure preheater 9; the steam at the top of the low-pressure steam generator 10 The outlet of the working medium is connected to the inlet of the low-pressure superheater 11, and the outlet of the superheated steam working medium of the low-pressure superheater 11 is divided into two routes, one of which ...

Embodiment 2

[0025] Such as figure 1 As shown, the ship gas turbine waste heat recovery system includes ORC liquid supply pump 1, ORC steam generator 2, ORC superheater 3, ORC turbine 4, ejector 5, refrigeration evaporator 6, and condenser 7. Low-pressure liquid supply pump 8, low-pressure preheater 9, low-pressure steam generator 10, low-pressure superheater 11, steam drum 12, mixer 13, regulating valve, stop valve and throttle valve 18; ship gas turbine flue gas in sequence After passing through the ORC superheater 3, ORC steam generator 2, low-pressure superheater 11, low-pressure steam generator 10 and low-pressure preheater 9, the heat is released from the flue gas outlet of the low-pressure preheater 9; the steam at the top of the low-pressure steam generator 10 The outlet of the working medium is connected to the inlet of the low-pressure superheater 11, and the outlet of the superheated steam working medium of the low-pressure superheater 11 is divided into two routes, one of which...

Embodiment 3

[0028] Such as figure 1 As shown, the ship gas turbine waste heat recovery system includes ORC liquid supply pump 1, ORC steam generator 2, ORC superheater 3, ORC turbine 4, ejector 5, refrigeration evaporator 6, and condenser 7. Low-pressure liquid supply pump 8, low-pressure preheater 9, low-pressure steam generator 10, low-pressure superheater 11, steam drum 12, mixer 13, regulating valve, stop valve and throttle valve 18; ship gas turbine flue gas in sequence After passing through the ORC superheater 3, ORC steam generator 2, low-pressure superheater 11, low-pressure steam generator 10 and low-pressure preheater 9, the heat is released from the flue gas outlet of the low-pressure preheater 9; the steam at the top of the low-pressure steam generator 10 The outlet of the working medium is connected to the inlet of the low-pressure superheater 11, and the outlet of the superheated steam working medium of the low-pressure superheater 11 is divided into two routes, one of which...

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Abstract

The invention relates to a waste heat recovery and power cooling combined supply system for a ship gas turbine, and belongs to the technical field of ships and energy conservation. The waste heat recovery and power cooling combined supply system for the ship gas turbine comprises an ORC liquid supply pump, an ORC steam generator, an ORC superheater, an ORC turbine, an ejector, a refrigeration evaporator, a condenser, a low-pressure liquid supply pump, a low-pressure preheater, a low-pressure steam generator, a low-pressure superheater, a steam pocket, a mixer, a regulating valve, a stop valveand a throttle valve. According to the system, temperature matching of heat exchange fluid and self-adaption of a high-temperature and low-temperature two-stage cycle working media are achieved by fully utilizing the characteristic of temperature change and phase change of a non-azeotropic mixed working media and the characteristic that the thermodynamic property difference of a vapor phase and aliquid phase is large during balance, the total irreversible loss of the system is reduced, and the total efficiency of composite cycle is improved.

Description

technical field [0001] The invention relates to a power-cooling co-supply system for waste heat recovery of a ship gas turbine, and belongs to the technical field of ships and energy saving. Background technique [0002] Because gas turbines have the advantages of compact structure, light weight, high power density, high flexibility, fast response time to power demand, short start-up time, less manpower requirements, low emissions and less noise, naval ships are increasingly inclined to use gas turbines as the original motive, not a diesel engine. However, despite the clear advantages of adopting gas turbine technology with new advances in turbomachinery, blade materials, and processes, there are still some disadvantages. Compared with diesel engines, gas turbines generally have a higher exhaust temperature (about 500 °C), resulting in lower thermal efficiency and exergy efficiency of gas turbines, and higher fuel consumption and operating costs. For naval ships, improving...

Claims

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Application Information

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IPC IPC(8): F01K23/10F01K25/10F28D21/00
CPCF01K23/10F01K25/10F01K25/106F28D21/0014
Inventor 王辉涛毛芸王建军朱道飞徐煜夏禹辰殷旭东王钰璇魏云辉陈丹晖
Owner KUNMING UNIV OF SCI & TECH
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