Gas combined heat and power generation system
A cogeneration of heat and power, gas technology, applied in the direction of gas turbine devices, heat storage equipment, indirect heat exchangers, etc., can solve the problems of limitation, low heat temperature, etc.
Inactive Publication Date: 2021-06-15
华能江阴燃机热电有限责任公司
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Problems solved by technology
Since the temperature of the heat released by the lubricating oil of the internal combustion engine and the cooling of the cylinder is low (generally not exceeding 90°C), and the heat share is very large, which is almost equivalent to the heat recovered by the flue gas, this form of heating has a high heating temperature requirement. case is restricted
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Embodiment 1
[0015] like figure 1 As shown: the gas-fired cogeneration system of this embodiment includes a gas turbine 1, a generator 2 driven by the gas turbine, a high-temperature waste heat utilization unit 3, and a low-temperature waste heat utilization unit 4; the exhaust pipe of the gas turbine is connected to the exhaust gas heat exchanger 5. The exhaust gas heat exchanger is connected to the high-temperature molten salt tank 6, the high-temperature molten salt tank is connected to the high-temperature waste heat utilization unit 3, the high-temperature waste heat utilization unit 3 is connected to the low-temperature waste heat utilization unit 4, and the The cooling pipe of the gas turbine is connected to the cooling water heat exchanger 7, the lubricating oil inlet and outlet pipeline of the gas turbine is connected to the lubricating oil heat exchanger 8, and both the cooling water heat exchanger and the lubricating oil heat exchanger are connected to the low-temperature waste h...
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The invention provides a gas combined heat and power generation system. The gas combined heat and power generation system comprises a gas turbine, a generator driven by the gas turbine, a high-temperature waste heat utilization unit and a low-temperature waste heat utilization unit. An exhaust pipe of the gas turbine is connected with a waste gas heat exchanger, the waste gas heat exchanger is connected with a high-temperature molten salt tank, the high-temperature molten salt tank is connected with the high-temperature waste heat utilization unit, the high-temperature waste heat utilization unit is connected with the low-temperature waste heat utilization unit, and a cooling pipe of the gas turbine is connected with a cooling water heat exchanger; a lubricating oil feeding and discharging pipeline of the gas turbine is connected with a lubricating oil heat exchanger, the cooling water heat exchanger and the lubricating oil heat exchanger are both connected with the low-temperature waste heat utilization unit, the low-temperature waste heat utilization unit is connected with a low-temperature molten salt tank, and the high-temperature molten salt tank and the low-temperature molten salt tank are connected with a molten salt pump. According to the gas combined heat and power generation system, lubricating oil of an internal combustion engine and heat of a cylinder cooling part are utilized, and the heat efficiency of the gas turbine combined heat and power generation system is improved.
Description
Technical field: [0001] The invention relates to a gas heat and power cogeneration system, which belongs to the technical field of energy and power. Background technique: [0002] The conventional cogeneration of cooling, heating and power uses a boiler and a heating steam turbine. Because the high-temperature flue gas formed by coal combustion cannot directly do work, it needs to transfer heat to the steam through the boiler. The high-temperature and high-pressure steam drives the turbine generator to generate electricity. High-grade steam turbine extraction or back pressure exhaust steam is used for heating. The cogeneration system of boiler plus heating machine is suitable for using coal as fuel. Due to the large area occupied by this system, poor load regulation ability and low power generation efficiency, it is generally used in coal-to-gas cogeneration, and it is rarely used in new gas-fired cogeneration systems. [0003] Gas turbine combined heat and power systems a...
Claims
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IPC IPC(8): F02C6/00F02C6/18F02C7/06F02C7/12F02G5/00F28D20/00F22B1/02
CPCF02C6/00F02C6/18F02C7/06F02C7/125F02G5/00F28D20/0034F22B1/028F28D2020/0047F28D2020/0078Y02T10/12Y02E60/14Y02E20/14
Inventor 毕天盛周民刘景海谢伟华张慧陈浩俞骏周龙徐斌施建冲
Owner 华能江阴燃机热电有限责任公司