Novel energy conversion system

An energy conversion system, a new type of technology, applied in steam engine installations, machines/engines, mechanical equipment, etc., can solve problems such as equipment erosion, difficult pipeline fixing construction operations, and increased investment costs.

Active Publication Date: 2016-02-10
忻元敏
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  • Application Information

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Problems solved by technology

[0004] (1) The inevitable strong winds and waves in the ocean require that the safety factor of such power generation equipment and power plant buildings must be improved, so the initial investment cost increases;
[0005] (2) Seawater contains almost all elements in nature, so seawater constitutes an inevitable serious erosion of equipment, resulting in a greatly shortened expected service life of investment equipment, which is manifested in increased maintenance costs;
[0006] (3) In order to obtain the water source of the ocean surface or deep layer, it is not only extremely difficult to fix the pipeline at a depth of about 1,000 meters under the sea, but also has high risks and high costs, and the power consumption of the two high-power pumping systems takes up A large part of the system's power generation, so the power generation efficiency of the entire system is significantly reduced, which is reflected in the increase in unit electricity cost;
[0007] (4) Alternating seasons and lower sea surface temperature will make it difficult to maintain this power generation method. Although there are remedial ideas for combining solar energy and wind energy, they are not always effective. Therefore, the power generation efficiency of this type of power generation system in a year or in a day Large fluctuations and instability; if heat storage facilities are not considered, it may even cause intermittent or power outage events
[0008] Therefore, we clearly know that at home and abroad, there are actually power generation technologies that utilize low-grade ocean heat energy, power generation technologies that utilize factory waste heat in the range of 380-90 °C, and power generation technologies that utilize heat energy from high-temperature geothermal wells, etc., but So far, we have not heard about the practical application report of low-grade thermal power generation technology using inland river water or air, or "ultra-low temperature power generation technology"-the key problem is that when the inland normal temperature environment is used as a heat source, people can hardly find it. Cold water (4-5°C) at a sea depth of 1,000 meters is used as a suitable inland cold source for hot wells, and the technical means of ordinary condensers, which usually require a positive temperature gradient between the tail gas and hot wells, are here The environment is completely invalid, and the Rankine cycle system cannot be established. Therefore, for a long time, people have been unable to directly transplant low-grade thermal power generation technology from the ocean to the inland normal temperature environment.

Method used

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Examples

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example 1

[0043] Example 1. Common scheme

[0044] This scheme is suitable for general heat source occasions, including the use of natural environmental heat sources or man-made environmental heat sources, such as factory waste heat, and the water or gas of the heat source needs to be input into the gas-liquid phase heat exchanger through the pump or air pump, so it is called ordinary Type scheme.

[0045] The heat accumulation mechanism 1, the energy conversion mechanism 2, the cooling and liquefaction mechanism 3 and the working medium circulation mechanism 4 are connected by pipelines in sequence. That is, the working medium inlet valve 11 of the liquid phase heat exchanger, the liquid phase heat exchanger 12, the working medium outlet valve 13 of the liquid phase heat exchanger, the working medium inlet valve 14 of the gas phase heat exchanger in the heat accumulation mechanism 1, and the gas phase heat exchanger 15. Gas-phase heat exchanger working medium outlet valve 16, check va...

example 2

[0049] Example 2. Energy-saving and high-efficiency solution

[0050] Compared with Example 1, this scheme is called energy-saving and high-efficiency type, because it does not need to pump water or air, which reduces the power consumption of water pumping or air pumping, so it is energy-saving and efficient. It is suitable for mountainous rivers with a water temperature above 30±10℃ all year round, with a certain water level gradient, or a certain flow rate, and is also suitable for outputting water flow or airflow in a factory waste heat type with a positioning difference and a certain pressure.

[0051] The system of this scheme is basically the same as Example 1, and the power generation mode is also the same, the difference is how to obtain the heat source water or gas process. In this scheme, the liquid phase heat exchanger 12 and the gas phase heat exchanger 16 are directly placed in the flowing river water, so the water (gas) on the heat exchange system side of the gas...

example 3

[0052] Example 3. Low-temperature photothermal water storage scheme

[0053] Compared with Example 1, this scheme is called low-temperature photothermal water storage type, because heat storage facilities and light field facilities are added to solve the heat source problem in areas with higher latitude and lower temperature. It is especially suitable for inland environments with long sunlight and unsatisfactory water sources, or marine or lake river environments with sufficient water sources but large temperature differences between day and night.

[0054] This scheme is basically the same as Example 1, and the power generation mode is also the same, the difference lies in the intervention and preparation for the external heat source. In this solution, the light field focusing mirror array uses sunlight to focus and heat the aqueous solution in the storage tank during the daytime. The aqueous solution in the storage tank is the heat source of the system. Generally, there are...

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Abstract

The invention discloses a novel energy conversion system. The novel energy conversion system comprises a heat gathering mechanism, a heat conversion mechanism, a cooling and liquefying mechanism and a working medium circulation mechanism. Any two of the heat gathering mechanism, the heat conversion mechanism, the cooling and liquefying mechanism and the working medium circulation mechanism are connected. The whole system conforms to the Rankine cycle operation principle and the second law of thermodynamics. The heat gathering mechanism gathers and transfers heat in the natural environment heat source and the artificial environment heat source to a system working medium with the utilization of a gas-fluid phase combination heat exchange component technology, so that the working medium is warmed and vaporized. According to the cooling and liquefying mechanism, a forcing-type condenser technology is adopted to achieve efficient heat dissipation and liquidation of working medium tail gas. According to the working medium circulation mechanism, a liquid pump and a liquid storage tank are utilized to provide the working medium with the possibility of circulation movement which are conducted in cycles. According to the energy conversion mechanism, with the adoption of a nozzle and an airflow adjusting valve, the airflow thermal energy of the working medium entering into the energy conversion mechanism is converted into mechanical energy, and then the mechanical energy is converted into electric energy. According to the novel energy conversion system, an improved and innovative ultralow-temperature power generation system is provided; the novel energy conversion system can utilize and is not limited to all kinds of low-grade heat energy, and the low-grade heat energy is converted into mechanical power to do work; the novel energy conversion system becomes a novel power generation system by connecting to an electric generator.

Description

Technical field: [0001] The invention relates to a novel energy conversion system. Background technique: [0002] With the shortage of energy resources in the world and the aggravation of environmental pollution, people pay attention to and realize how to develop and utilize the huge amount of low-grade heat energy that actually exists in natural space and waters. This low-grade thermal energy is essentially the heat given to the earth by solar radiation, so it is inexhaustible and inexhaustible, and it is the most green, clean, environmentally friendly and renewable cycle. At present, countries all over the world are investing and competing with each other, trying to gain a leading position in the field of developing and utilizing ocean low-grade thermal energy power generation technology, which greatly promotes the rapid development of ocean low-grade thermal energy power generation technology, making this power generation technology already commercially valuable . [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K25/00F01K11/02
Inventor 忻元敏
Owner 忻元敏
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