5 results about "Geothermal fluid" patented technology

The application discloses a hydrogen production system of geothermal water source and belongs to the technical field of hydrogen production. The system comprises a geothermal fluid circulation unit, an electrolyte preheating unit and an electrolytic hydrogen production unit. The geothermal fluid circulation unit realizes the recycling of geothermal water through a geothermal well, a recharge well and a geothermal heat exchanger; the electrolyte preheating unit connects an electrolyte storage tank and the second side of the geothermal heat exchanger through a second circulation pipeline to form a preheating circulation; the electrolytic hydrogen production unit comprises an electrolytic tank and a hydrogen purification device and receives the preheated electrolyte to produce hydrogen by electrolysis. In the preferred scheme, a flash evaporation pressurization and heat supplement unit is further included, the geothermal tail water is subjected to waste heat recovery through a flash tank and a steam compressor to generate high-temperature steam for auxiliary heating of the electrolytic tank. The application uses geothermal energy to replace electric heating to preheat electrolyte, significantly reduces the energy consumption of hydrogen production, has the advantages of reasonable structure, high automation degree, environmental protection and water saving and is suitable for hydrogen production application in areas rich in geothermal resources.

Various examples are provided related to airlift pumping of downhole geothermal fluids. In one example, an airlift system includes a compressor; a gas sparger head in a wellbore of a geothermal well, and a pressure head recycle assembly. The sparger head produces artificial lift of the geothermal fluids by injecting a gas resulting in a difference in density downhole. The entrained gas can be extracted by the pressure head recycle assembly, compressed, and reinjected downhole. The geothermal fluid at the well head can be used in direct use applications or in a thermodynamic cycle to make shaft power. The gas sparger head can include a venturi shaped passage extending through the gas sparger head and a bubble orifice including gas orifices radially spaced about a narrow portion of the venturi shaped passage. The gas orifices can have a corresponding resonant chamber through which the gas (e.g., air) is provided.

The utility model belongs to the technical field of energy engineering, concretely relates to the proportional measurement of geothermal fluid. A kind of direct condensing geothermal fluid vapor-liquid proportional measurement system, including main output pipe, condensing unit, separation unit, cooling water unit, measurement unit;Condensing unit includes the direct condensing condenser for receiving heat source fluid;Cooling water unit is used to output cooling water to direct condensing condenser;Separation unit includes gas-liquid separator;Gas-liquid separator includes the gas phase output pipe for outputting gas and the liquid phase output pipe for outputting liquid, and the liquid phase output pipe is connected with measurement tank;Heat source fluid and cooling water are directly mixed and heat exchanged in the direct condensing condenser, and the obtained mixed fluid is output to gas-liquid separator.The utility model provides the system and method using direct condensing method, and the original proportion of water, steam and incondensable gas in wellhead geothermal fluid can be accurately measured.

The application provides an LNG gasification power generation system and method coupled with geothermal and seawater, and relates to the technical field of LNG gasification. The system comprises an LNG pipeline, the LNG pipeline sequentially passes through at least two condensers; at least two organic flash cycle units, each of which is connected with a condenser, the organic flash cycle unit comprises a circulation pipeline, the circulation pipeline sequentially passes through a heat exchanger, a flash tank, an expander and a condenser, the circulation pipeline is provided with an organic working medium, the condenser is used for providing cold energy for condensation of the organic working medium, the heat exchanger exchanges heat with seawater or geothermal fluid, and the expander is used for power generation. The problems of high energy consumption and large heat loss in the LNG gasification process in the prior art are solved.

The application discloses a geothermal well sound-water synergic anti-blocking device and method. The device comprises a center flow pipe, a piston type tuning sliding sleeve, two main oscillation cavities, a shared secondary convergence coupling cavity, a reduced-diameter impact nozzle, a tuning mechanical vibration body, an outer wall thin-wall radiation window and a lateral high-pressure water nozzle. The high-pressure geothermal fluid forms near-frequency pulse jet flow through two main oscillation cavities and two groups of differential throttling throat pipes, and a composite pressure pulse containing a low-frequency beat frequency envelope is formed in the shared cavity. The composite pressure pulse impacts the tuning mechanical vibration body through the reduced-diameter impact nozzle, forming radial sound-water coupling vibration waves; the lateral high-pressure water nozzle sprays pulse water flow, which continuously disturbs, loosens and flushes the scale layer, particle deposition and blockages of the near-well fracture mouth and the near-well section of the main fracture of the hot dry rock geothermal well, and is beneficial to maintaining the long-term stability of the fracture conductivity.