Depressurization evaporator and geothermal steam power generation device
A technology of evaporator and pressure tube, which is applied in the field of geothermal resource development, can solve the problems of difficulty in ensuring accuracy and high failure rate of electronic equipment, and achieve the effect of sufficient geothermal water resources
Pending Publication Date: 2021-02-05
湖南达道新能源开发有限公司
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Problems solved by technology
[0004] Most of the existing geothermal water power generation equipment controls the pressure in the expansion vessel through pressure sensors and control systems (such as PLC controllers), but the failure rate of electronic equipment is high, and the accuracy is difficult to guarantee, and there are often large errors
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[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0024] In addition, an element in the present invention is said to be "fixed" or "disposed on" another element, and it may be directly on another element or an intervening element may also exist. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for pur...
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The invention discloses a depressurization evaporator and a geothermal steam power generation device. A sealing cover is fixed to the upper portion of an expansion tank in a sealed mode. A vacuumizingassembly comprises a vacuum cylinder fixed to the side wall of the expansion tank, a crankshaft rotationally arranged on one side of the interior of the vacuum cylinder, a sealing plug arranged in the vacuum cylinder in a sealed and sliding mode, and a connecting rod used for connecting the sealing plug and the crankshaft; when a motor works, the crankshaft is driven to rotate, the rotating crankshaft drives the sealing plug to slide in the vacuum cylinder in a reciprocating and sealed mode through the connecting rod, the interior of the expansion tank is vacuumized in cooperation with two one-way valves, the pressure intensity in the expansion tank is reduced, underground hot water in the expansion tank is vaporized under reduced pressure, and expansion steam with the pressure lower thanthe local atmospheric pressure is generated, the underground hot water is vaporized into steam at a lower temperature to achieve the purpose of flash evaporation, and then the steam is used for powergeneration; and the pressure in the expansion tank is automatically controlled by means of a pressure control assembly, so that the pressure is kept constant.
Description
technical field [0001] The invention relates to the field of geothermal resource development, in particular to a pressure-reducing evaporator and a geothermal steam power generation device. Background technique [0002] Geothermal power generation is actually the energy conversion process of converting underground thermal energy into mechanical energy, and then converting mechanical energy into electrical energy, or geothermal power generation. [0003] The water in the geothermal water cannot be directly sent to the steam turbine to do work according to the conventional power generation method. It must be input into the steam turbine to do work in the steam state; usually, the underground hot water entering the expansion vessel is decompressed and vaporized to generate water below the local atmospheric pressure. The expansion steam then separates the steam and water, drains the water, transports the steam and fills it into the steam turbine to do work, and the steam turbine...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01K27/00F01K17/02F01K21/00F01D15/10F01D25/00
CPCF01K27/00F01K17/02F01K21/00F01D15/10F01D25/00
Inventor 李进刘艺辉
Owner 湖南达道新能源开发有限公司