Trench type solar energy atomizing and flashing thermal power generation system device
A trough solar and thermal power generation system technology, which is applied in the field of system devices for trough solar concentrating power generation, can solve problems such as difficulty in controlling instantaneous pressure and unevenness, and achieve the effects of reducing heat exchange loss and improving power generation efficiency.
Inactive Publication Date: 2013-11-27
张建城
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Problems solved by technology
Experiments have shown that due to the difficulty in controlling the instantaneous pressure of this technology, as well as the two-phase flow of water in the heat collecting tube and the uneven vaporization pressure in the heat collecting tube, this generally promising technology is still in the experimental stage.
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[0035]1. Replace the heat collector tubes used in the trough solar concentrating power generation system with the line-focused enhanced heat-collector tubes (2) with ring-shaped corrugated nodes or helical corrugated-node metal inner tubes with enhanced heat transfer function ( 2) For the disturbance effect of the heat transfer working medium, the laminar flow heating is changed to the eddy current heating.
[0036] 2. Use atomized gas instead of heat transfer oil or water as heat transfer medium. In order to inherit the advantages of DSG technology and overcome the shortcomings of directly heating the water working medium, the atomizer (3), the gas bag (4), and the vaporization tank ( 5) or jet pump (7) and other atomizing devices, utilize these devices to generate atomized water vapor, and use the gas containing "steam" to complete heat conduction.
[0037] 3. An atomizing flash tank (9) is installed to generate low-pressure saturated steam required for thermal power genera...
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The invention relates to a trench type solar energy atomizing and flashing thermal power generation system device. The device provided by the invention comprises a parabolic trough condensing device, a line focusing strengthening and heat-collecting pipe, an atomized water vapor working medium, an atomizer, an atomizing and flashing tank, a vaporizing tank, a jetting pump, a steam drum, a water pump, a pressure pump, a pressure control valve, a thermal power machine, a heat exchanger, a heat storage tank, a condenser and the like, and the system device adopts atomized water vapor as an initial heat transfer working medium in a parabolic trough light-gathering array; in the system, devices such as the atomizer, the atomizing and flashing tank and the like are configured; and the atomized water vapor is introduced into the system in a controlled manner so as to keep the pressure constant, and solar energy is condensed for heating to generate saturated vapor and superheated steam so as to directly drive a steam turbine and drive a generator, thus realizing a solar heat-gathering and power-generating DSG (direct stream generation) device. The technology belongs to the field of utilization of solar heat.
Description
technical field [0001] The invention relates to a system device that uses atomized water vapor as heat transfer medium and adopts atomization flash method to realize trough solar power generation (CSP). The system uses line focusing to strengthen heat collection tubes, atomizers and vaporization tanks And other equipment, control the input of atomized water vapor into the system, generate saturated steam and superheated steam in the concentrating array, and finally drive the steam turbine and drive the generator to complete the system device of trough solar concentrating power generation. The technology belongs to the field of solar thermal utilization. Background technique [0002] Compared with photovoltaic power generation (PV), concentrated solar power generation (CSP) has outstanding features such as large scale, high concentration, and high efficiency. Manufacturing costs and improving power generation efficiency have become the focus of competition between the two so...
Claims
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IPC IPC(8): F03G6/06
CPCY02E10/46
Inventor 张建城
Owner 张建城