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Marine drilling platform diesel engine waste heat recovery system with heat storage function

A technology for offshore drilling platforms and waste heat recovery systems, applied in heat storage equipment, steam generation methods using heat carriers, preheating, etc., can solve the problems of poor chemical stability of phase change heat storage materials, corrosion of heat exchanger pipes, and heat transfer problems. Poor capacity and other problems, to achieve the effect of improving energy utilization efficiency, saving floor space, and low cost

Pending Publication Date: 2021-12-03
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the problems of the current heat storage materials, there are some problems in the heat storage heat exchanger, mainly manifested in: poor heat transfer capacity; poor chemical stability of phase change heat storage materials; heat storage materials corrode heat exchanger pipes more serious;

Method used

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  • Marine drilling platform diesel engine waste heat recovery system with heat storage function
  • Marine drilling platform diesel engine waste heat recovery system with heat storage function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one, such as figure 1 As shown, a diesel engine waste heat recovery system on an ocean drilling platform with heat storage function includes a diesel engine 16, a heat storage heat exchanger 6, an induced draft fan 7, a water tank 12, a jacket water preheating heat exchanger 4, a muffler 15, Pressure gauge 3, thermometer 10, flow meter 14, water pump 9, valve A2, shut-off valve 5 and other valves 1 used to control the on-off of the pipeline in the pipeline, wherein the heat storage heat exchanger 6 can be set as multiple units in series , in order to improve the efficiency of waste heat recovery, there are two in the figure; the thermometer 10 is a Vientiane bimetallic thermometer; the flowmeter 14 is a turbine flowmeter; the pressure gauge is a 3-digit marine pressure gauge; the valve 1 is a butterfly valve equipped with a metal hard seal.

[0017] Diesel engine 16 is provided with exhaust gas pipe 17, first cylinder jacket water inlet and outlet 161 and 162...

Embodiment 2

[0025] A diesel engine waste heat recovery system on an ocean drilling platform with heat storage function, comprising a diesel engine, a heat storage heat exchanger, a shut-off valve, steam-using equipment, a condenser, and a water tank.

[0026] The diesel engine is provided with an exhaust pipe, and the steam-using equipment is provided with a steam supply pipe and a water return pipe, and also includes a heat storage heat exchanger, a water tank, and a water pump. The heat storage heat exchanger is provided with a flue gas inlet and outlet and a second A circulating water inlet and outlet, the water tank is provided with water supply and return ports; the waste gas pipe is connected to the flue gas inlet; the water supply port is connected to the water pump, the water pump is connected to the first circulating water inlet, and the first circulating water outlet is connected to the The steam supply pipe is connected, and the water return pipe is connected with the water retu...

Embodiment 3

[0031] A method for recovering waste heat from a diesel engine on an ocean drilling platform with a heat storage function. First, the high-temperature flue gas flows through a heat storage heat exchanger, and the heat storage heat exchanger absorbs and stores the heat energy brought by the high-temperature flue gas, and then the circulating water flows through the jacket water Preheating heat exchanger, through the jacket water preheating heat exchanger, the heat energy of the jacket water is exchanged to the circulating water to preheat the circulating water, and finally the preheated circulating water is sent to the heat storage heat exchanger to absorb The heat energy stored in the heat exchanger further increases the temperature to generate wet steam, and then transports the wet steam to the steam-consuming equipment, and the circulating water circulated by the steam-consuming equipment returns to the water tank through the return pipe to complete the waste heat recovery of ...

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Abstract

The invention relates to the technical field of marine drilling platform internal combustion engine energy conservation, in particular to a marine drilling platform diesel engine waste heat recovery system with a heat storage function. The system comprises a diesel engine, steam utilization equipment, a heat storage heat exchanger, a cylinder sleeve water preheating heat exchanger, a water tank and a water pump. A diesel engine waste gas pipe is connected with the heat storage heat exchanger to form a smoke gas waste heat recycling pipeline, the cylinder sleeve water preheating heat exchanger is connected with diesel engine cylinder sleeve water to form a cylinder sleeve water preheating heat exchange loop, and the water tank, the cylinder sleeve water preheating heat exchanger, the heat storage heat exchanger and the steam utilization equipment form a circulating water loop. Circulating water is preheated through the cylinder sleeve water and then conveyed to the heat storage heat exchanger, the temperature of the circulating water is further increased by recycling smoke gas waste heat, and the circulating water forms wet steam to be provided for the steam utilization equipment for use; and high-efficiency recovery of waste heat of a large diesel engine is achieved, and the energy-saving performance of the diesel engine is further improved.

Description

technical field [0001] The invention relates to the technical field of energy-saving technologies for internal combustion engines on offshore drilling platforms, in particular to a waste heat recovery system for diesel engines on ocean drilling platforms with a heat storage function. Background technique [0002] Offshore oil platform power system equipment is scattered, with different power and variable working conditions, and it is difficult to recover waste heat. Domestic research on the comprehensive utilization system of offshore oil platform waste heat resources is scarce and the demand is urgent. [0003] Regenerative heat exchangers are used in many industrial processes. However, due to the problems of the current heat storage materials, there are some problems in the heat storage heat exchanger, mainly manifested in: poor heat transfer capacity; poor chemical stability of phase change heat storage materials; heat storage materials corrode heat exchanger pipes more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B1/18F22D1/18F28D20/02F28F27/00
CPCF22B1/1807F22D1/18F28D20/023F28F27/00Y02E20/30Y02E60/14Y02P80/10
Inventor 邬可谊田海庆徐增强郭强林日亿冯洪庆
Owner 中石化石油工程技术服务有限公司
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