19 results about "Geothermal water" patented technology

The application provides a geothermal water cascade utilization based combined production system and method of heat, electricity and helium, which comprises, in sequence, a geothermal exploitation pretreatment unit, a thermal energy cascade utilization unit, a water-soluble helium gas purification and storage unit, a tail water reinjection unit and a valve control unit, wherein the valve control unit is provided with valve groups matched with the units according to functions. According to the application, the geothermal exploitation pretreatment unit, the thermal energy cascade utilization unit, the water-soluble helium gas purification and storage unit and the tail water reinjection unit are connected in sequence to realize the collaborative operation of the geothermal water cascade utilization and the water-soluble helium extraction. The valve control unit matched according to functions and the system interlocking control logic are provided to provide a targeted control structure for each process unit, realize the accurate control of process parameters and the flexible switching of working conditions, provide a structural basis for the online maintenance of subsequent equipment and the recycling of helium extraction, improve the overall operation stability of the system and improve the comprehensive utilization efficiency of geothermal resources and water-soluble helium resources.

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.

The application belongs to the technical field of heat supply, and particularly relates to a geothermal and coal power unit coupled heat supply system and method, which comprises: a first heat exchange module, which is used for performing primary heat exchange on initial geothermal water and first user water through a first plate heat exchanger to obtain second geothermal water and first temperature exchange water; a second heat exchange module, which is used for performing heat exchange on the second heat exchange water and low-temperature output water through a second plate heat exchanger to obtain third geothermal water and second temperature exchange water; a medium-pressure cylinder, which is used for providing high-temperature steam as a high-temperature driving heat source according to an initial driving efficiency; an absorption heat pump, which is used for receiving the first temperature exchange water, the second temperature exchange water and the high-temperature driving heat source to perform heat conversion, monitoring a pump heat conversion efficiency to adjust the initial driving efficiency, and obtaining target output water for heat supply. The application improves the utilization rate of geothermal resources.

The application provides an aluminum adsorbent, a preparation method and application thereof. The aluminum adsorbent comprises inorganic active particles, the inorganic active particles are formed by aggregation of a plurality of single crystals; the single crystal is flaky, the diameter is 20 nm-2000 nm, the thickness is 10 nm-200 nm, and the chemical composition is (1-x)LiCl·2(Al (1‑n) ,Ga n )(OH)3·yH2O, wherein x=0-2 / 3, y=0.25-5, and n=0.001-0.02; and the X-ray diffraction strongest peak intensity of the inorganic active particles is greater than 5000. The preparation process of the aluminum adsorbent is simple, the cost is low, the aluminum adsorbent is suitable for directly extracting lithium from oilfield water, geothermal water and other low-salinity brine with low lithium concentration, the adsorption-desorption process can use fresh water as a desorption agent, and the regeneration does not need to use acid or alkali, so that secondary pollution is greatly reduced, the process is green and environment-friendly, and the operation cost is significantly reduced.

The application discloses an inert gas graphic method for identifying geothermal water migration direction and relates to the technical field of mineral resource exploration. 4 He / 20 Ne ratio and 4 He / 36 Ar ratio; a He 4 He / 20 Ne-He 4 He / 36 Ar binary correlation coordinate system is established, and an atmospheric characteristic value coordinate point is indicated; each sample ratio is taken as a coordinate point and is plotted into the coordinate system, and a geothermal water migration direction is determined according to a change trend from high to low of the ratio. The application can realize accurate identification of the geothermal water migration direction in a high-temperature geothermal field lacking of hot spring outcrops by using the stable chemical properties of inert gases, and effectively avoids interference caused by geological processes such as water-rock interaction, mineral deposition and clay mineral adsorption.

The application provides a downhole heat exchange system and a downhole heat exchange process, and relates to the technical field of downhole heat exchange. The downhole heat exchange system comprises a heat exchange well, a casing pipe arranged in the heat exchange well, and a flow channel arranged on the wall of the heat exchange well. A flow disturbance system and a heat exchange system are arranged in the heat exchange well in sequence from bottom to top. The flow disturbance system comprises a suction pipe, a flow disturbance pump and a first fixing part. The lower end of the suction pipe is located in the range of the hot reservoir. The suction end of the flow disturbance pump is connected with the suction pipe. The flow disturbance pump is connected with the casing pipe through the first fixing part. The first fixing part is provided with a first flow hole. The output end of the flow disturbance pump is located above the first fixing part. The flow disturbance pump is used for sucking geothermal water. The lower end of the heat exchange system is soaked in the geothermal water. The downhole heat exchange technology in the prior art can be quickly recovered. The cooling speed is high during use. The heat compensation speed is slow. The downhole heat exchange technology can meet the requirement of large-area heating.

This utility model discloses a combined LNG cold energy and geothermal energy power generation system, compared to existing technologies. It includes an LNG cold energy recovery subsystem, a geothermal circulation subsystem, and a cooling water system. The LNG cold energy recovery subsystem includes an LNG storage tank, an LNG cryogenic pump, a downstream user terminal, a second evaporator, a preheater, a second working fluid pump, a second turbine generator set, and a second condenser. The geothermal circulation subsystem includes a water extraction well, a geothermal water pump, a reinjection well, a first evaporator, a first working fluid pump, and a first turbine generator set. The cooling water system includes a cooling water pump and a first condenser. This utility model combines LNG cold energy power generation with geothermal power generation, effectively improving energy utilization while avoiding the limitations of a single energy source. Utilizing the cold energy from LNG vaporization lowers the condensation temperature of the ORC system, increases the system temperature difference, and improves power generation efficiency. Geothermal energy provides a heat source for LNG vaporization, reducing the environmental impact of traditional seawater heating.

This utility model discloses an intelligent temperature-controlled geothermal well heating circulation and reinjection energy-saving device, including a circulation module installed at the outlet of the geothermal well. A heat-using device is connected to the circulation module for heating the device. A drainage module is installed on one side of the circulation module. Both the circulation module and the drainage module are connected to a control module for simultaneously discharging low-temperature water from the circulation module and introducing new hot water. This utility model has a reasonable design structure. By setting up a circulation pipeline on the geothermal well, and sequentially installing a hot water pump, a first control valve, a second control valve, a drainage module, and a monitoring module at corresponding positions on the circulation pipeline, the device monitors the geothermal water in real time, promptly discharging low-temperature geothermal water and simultaneously introducing new geothermal water. This solves the problem in existing heating systems where geothermal water continuously circulates regardless of temperature, making it difficult to discharge low-temperature water in time, thus failing to meet heating needs, and causing energy waste due to repeated circulation.

This application relates to a geothermal water sand removal device and its usage method, belonging to the field of geothermal water sand removal technology. It includes a cylinder, a drive mechanism, and a vortex mechanism. A water outlet pipe is rotatably connected to the top of the cylinder. The drive mechanism drives the water outlet pipe and the vortex mechanism to rotate. An inlet pipe is provided on the cylinder, and the outlet pipe has an outlet inlet. A first filter plate is disposed between the bottom of the outlet pipe and the inner wall of the cylinder, sealing the space between the inlet pipe and the outlet inlet. A second filter plate is also covered by the outlet inlet, with a mesh diameter smaller than that of the first filter plate. This application can effectively intercept and filter fine sand and gravel in geothermal water, significantly improving sand removal efficiency. Simultaneously, as the outlet pipe rotates synchronously, some sand and gravel particles adhering to the surface of the second filter plate are thrown towards the inner wall of the cylinder under centrifugal force, thereby reducing sand and gravel clogging of the filter plate and extending the continuous operating time of the equipment.

The application provides a device for high-precision and rapid determination of geothermal water associated gas content, which comprises an outer casing, a filtering unit, an evaporator, a condensing unit, a gas condensation breathing mechanism and a drying device connected in sequence. Two mounting holes are arranged at the top end of the outer casing. The filtering unit is communicated with the mounting holes. The condensing unit has an inlet communicated with the evaporator, an air outlet and a water outlet. The water outlet is communicated with a water collecting tank. The gas condensation breathing mechanism has a collecting part communicated with the air outlet of the condensing unit and a plurality of cooling flow parts. The collecting part is respectively connected with each cooling flow part through a gas guide valve seat. The gas condensation breathing mechanism can send the associated gas in the collecting part into each cooling flow part through the gas guide valve seat in an alternating pressure mode to destroy the laminar flow boundary. The drying device is communicated with the outlet of the gas condensation breathing mechanism. The device for high-precision and rapid determination of geothermal water associated gas content provided by the application can reduce the drying time of the associated gas and reduce the measurement error.

This application discloses a method, apparatus, electronic equipment, and medium for predicting the distribution of geothermal water in carbonate reservoirs. The method may include: acquiring magnetotelluric data in the target exploration area and performing inversion to obtain inversion results; collecting data from drilled geothermal wells, including the burial depth of the top surface of the carbonate reservoir and the geothermal water production; calculating the formation dip angle based on the inversion results and the drilled geothermal well data to obtain a planar distribution map of the formation dip angle; establishing a fitting relationship between the formation dip angle and the geothermal water production from the drilled geothermal well data; and obtaining a predicted contour map of water distribution based on the planar distribution map of the formation dip angle and the fitting relationship. This invention, by constructing a linear model between formation dip angle and geothermal water production, achieves the direct conversion of dip angle data to water production data, thereby quantitatively predicting the water distribution of geothermal reservoirs, enhancing the accuracy of geothermal resource exploration, and providing a reliable basis for the scientific development and efficient utilization of geothermal resources.

The application discloses a geothermal water source non-chemical scale inhibition and removal system and belongs to the technical field of geothermal energy utilization and water treatment. The system comprises, in sequence along the flow direction of geothermal water, a temperature control induced crystallization unit, a flow state shearing scale inhibition unit, a cyclone separation scale removal unit and a bypass online cleaning unit. The temperature control induced crystallization unit makes calcium and magnesium ions preferentially pre-crystallize on the surface of suspended seed crystals through gradient temperature spoiler and suspended seed crystal layer; the flow state shearing scale inhibition unit generates high wall shear force by using a spiral turbulent flow generator and an elastic polymer lining to inhibit crystal adhesion; the cyclone separation scale removal unit centrifugally separates and discharges suspended scale crystals, and low supersaturation geothermal water is obtained and sent into a heat exchanger; and the bypass online cleaning unit removes trace adhered scale through pressure alternating cavitation online cleaning. The application realizes efficient scale inhibition and continuous scale removal through integrated and synergistic control of pre-crystallization, wall inhibition, suspended removal and online cleaning without chemical agents, and is environment-friendly, highly adaptable and low in operation and maintenance cost.

This invention provides a flash-organic Rankine cycle power generation system and method that couples geothermal and solar thermal power generation, relating to the field of geothermal power generation technology. It includes: a geothermal irrigation unit; a solar thermal collection unit comprising a solar collector and a phase change energy storage device; a flash evaporation power generation unit comprising a flash evaporator, a heat exchanger, and a first steam turbine generator set, connected to the geothermal irrigation unit and the solar thermal collection unit, capable of using steam generated from geothermal water produced by the geothermal irrigation unit to drive the first steam turbine generator set for power generation; and an organic Rankine cycle power generation unit comprising a condenser, a working fluid circulation pump, a preheater, an evaporator, and a second steam turbine generator set, connected to the solar thermal collection unit, capable of using the heat transfer medium produced by the solar thermal collection unit to generate steam through the evaporator to drive the second steam turbine generator set for power generation, and using the heat transfer medium produced by the solar thermal collection unit as the heat source for the heat exchanger. This invention solves the problems of discontinuous and unstable solar power generation and the limitation of geothermal power generation by the temperature of the geothermal source in existing technologies.

The application provides a medium-deep geothermal source heat pump and solar heat and electricity integrated coupling system, and relates to the technical field of comprehensive energy utilization. The system comprises a solar heat and electricity integrated module, a heat pump unit, a heat preservation water tank for recycling waste heat generated in a photovoltaic power generation process, a medium-deep geothermal heat exchanger for absorbing medium-deep geothermal heat, and a first pipeline and a second pipeline. The first pipeline is connected with a geothermal water inlet of the heat preservation water tank and is provided with a first valve. The second pipeline is connected with an evaporator water inlet of the heat pump unit and is provided with a second valve. The medium-deep geothermal heat exchanger is connected with the heat pump unit. The system combines photovoltaic, photothermal and clean heating technologies, realizes complementary advantages, maximizes benefits, and is suitable for clean heating scenes in cold regions.

This utility model relates to the field of membrane separation and evaporation concentration technology, specifically to a novel high-efficiency membrane evaporation device. By employing a multi-layer flat-plate evaporation membrane design, where each layer comprises two layers of high-porosity, small-pore-size nanofiber membranes, the evaporation flux is significantly improved. Simultaneously, the multi-layer flat-plate evaporation membranes are tightly connected to two supporting plates via multiple fastening bolts, and the use of O-rings effectively reduces heat conduction. The modular design of the membrane frame and nanofiber membranes allows for easy replacement and cleaning of the membranes if they become contaminated, reducing maintenance costs. Furthermore, this device is applicable to various heat sources such as medium-temperature industrial waste heat, geothermal energy, and water source heat pumps, effectively addressing the challenges of existing membrane evaporation modules in terms of structural compactness, anti-fouling capability, and heat source adaptability, thus meeting the high-efficiency evaporation requirements driven by medium- and low-temperature energy sources.

The application provides a kind of H2TiO3@GO layered composite lithium ion sieve and a preparation method thereof, and belongs to the technical field of lithium ion sieve adsorption, characterized in that the active component of the ion sieve is the delithiated product H2TiO3 of the Li2TiO3 lithium ion sieve precursor, and the carrier is graphene oxide GO; the molar ratio of graphene oxide GO to H2TiO3 is (1.4-2.8):1; the crystal form of Li2TiO3 is the typical monoclinic crystal form β-Li2TiO3. The composite lithium ion sieve is used for selective adsorption and extraction of lithium ions in low-concentration geothermal water, salt lake brine and seawater. The H2TiO3@GO composite lithium ion sieve provided by the application has the advantages of fast adsorption rate, high adsorption capacity and good ion sieve structure stability, and the composite ion sieve is easy to separate from liquid solution, has good regeneration repeatability, and has good industrial application prospect.

The application discloses a method and a regulation system for deep geothermal energy and shallow heavy oil reservoir collaborative three-dimensional development, which aims at efficiently solving the problem of high viscosity of crude oil in the development process of the shallow heavy oil reservoir. Specifically, the application ingeniously utilizes the rich geothermal energy resources in the deep stratum, extracts the heat energy of the deep geothermal water through advanced mining technology, and directly applies the heat energy to the mining process of the shallow heavy oil reservoir, so that the viscosity of the heavy oil can be effectively reduced, the flowability of the crude oil is improved, a low-cost hot water displacement technology is realized, and the energy consumption and cost in the traditional heavy oil mining are greatly reduced. The application not only provides a new idea and technical means for efficient development of the shallow heavy oil reservoir, but also opens up a new application field for reasonable utilization of the deep geothermal energy, realizes the complementary advantages and three-dimensional development of the geothermal energy and the petroleum resources, and has important significance for promoting the optimization and upgrading of the energy structure in China and even the whole world.