214 results about "Geothermal water" patented technology

The geothermal reservoir recharge system comprises a geothermal well used for discharging geothermal water; the recharge well is connected with the geothermal well through a geothermal pipeline, the distance between the recharge well and the geothermal well is larger than or equal to 100 m, and the recharge flow of geothermal water, leading to the recharge well, of the geothermal pipeline is smaller than or equal to 100 m < 3 > / h; the filtering device comprises a sand remover, a first filter and a second filter, the filtering diameter of the second filter is smaller than that of the first filter, the sand remover, the first filter and the second filter are sequentially arranged on the geothermal pipeline in the direction away from the geothermal well, the sand remover is adjacent to the geothermal well, and the first filter and the second filter are adjacent to the recharge well; and the heat exchanger is connected with the geothermal pipeline and the heated pipeline, so that geothermal water in the geothermal pipeline can heat the working medium in the heated pipeline through the heat exchanger. Therefore, according to the geothermal reservoir recharge system, blockage of the recharge well during recharge can be reduced conveniently, and the influence on the geothermal reservoir is reduced.

The invention relates to a working parameter linkage regulation and control method and system for a medium-deep geothermal water source heat pump, in particular to the field of medium-deep geothermal water source heat pumps, firstly, disturbance signals are generated through reinforcement learning and injected into a geothermal loop, and therefore the dynamic mapping precision of an underground heat reservoir is improved; secondly, the thermal diffusion coefficient and the fracture rate of the rock stratum are inversed through the physical information neural network model, and real-time monitoring of underground thermal storage is achieved; secondly, predicting the difference between the heat supply load and the geothermal heat absorption capacity by using the meteorological data, the room temperature data and the heat pump operation parameters, generating a regulation and control decision, and setting a grading trigger condition; and finally, a phase change heat storage device and a compressor are precisely regulated and controlled through a double-actuator collaborative algorithm, the response speed and energy efficiency of the heat pump system are improved to the maximum extent, the room temperature fluctuation problem is relieved, frequent frequency modulation is avoided, starting of a standby boiler is reduced, and therefore the operation efficiency and stability of the heat supply system are optimized.

The invention relates to the field of geothermal water detection, and discloses a geothermal water supply source and circulation depth calculation and determination method, which is used for solving the problem of result deviation caused by influence of bottom layer heat conductivity change during geothermal water source and depth determination, and comprises the following steps of: calculating a representative index of each geothermal well; selecting a representative geothermal well according to the representative index, collecting a final geothermal water sample of the representative geothermal well, carrying out water chemical analysis on the final geothermal water sample, carrying out isotopic tracing analysis on the final geothermal water sample according to a water chemical analysis result, and regularly measuring hydrogen isotope values of a plurality of rainfall sampling points. The gradient of the hydrogen isotope changing along with the elevation is obtained, the geothermal water supply elevation is calculated according to the elevation effect of the hydrogen isotope, a distributed hydrological model is combined with GIS space analysis, the supply area range is optimized, and the scientificity and rationality of geothermal resource development are effectively improved.

The invention belongs to the technical field of terrestrial heat application, and particularly relates to an underground heat removal device. The underground heat removal device comprises a heat exchange unit used for exchanging heat with geothermal water; the outer oil pipe is arranged at the upper part of the heat exchange unit; the inner oil pipe is arranged in the outer oil pipe, the two ends of a first annular space between the inner oil pipe and the inner oil pipe are sealed, and a vacuumizing opening communicated with the first annular space is formed in the outer oil pipe.

The invention relates to a zero-carbon intelligent agricultural development and utilization system and method based on gradient utilization of energy. The system comprises a geothermal well selection and arrangement module, a geothermal water collection and pretreatment module, a heat exchange module, a gradient utilization system construction module, a hot water circulation and reuse module, a working condition flexible adjustment module, an intelligent regulation and control module, a hot spring utilization and recharge system and a system energy storage module. The problems of energy waste, high carbon emission and insufficient agricultural suitability in the traditional technology are solved, and low carbonization and high efficiency of agricultural production are realized.

The utility model provides a coaxial heat exchange device for medium-deep geothermal energy, and mainly relates to the technical field of geothermal energy development. A coaxial heat exchange device for medium-deep geothermal energy comprises a well pipe, a connecting pipe is fixedly arranged at the top of the well pipe, an outer pipe is fixedly arranged at the top of the connecting pipe, a reducer pipe is fixedly arranged in the outer pipe and close to the top, an inner pipe is fixedly arranged at the bottom of the reducer pipe, a circulating pipe is arranged in the inner pipe, and the circulating pipe penetrates through the outer pipe and the reducer pipe. Spiral blades are arranged on the outer ring of the circulating pipe in an array mode. The utility model has the beneficial effects that the coaxial heat exchange technology is adopted, geothermal water does not need to be extracted, tail water does not need to be recharged, the ground is prevented from settling, and the damage to the geological environment is small; and all the spiral fins are driven to rotate through flowing heat exchange, so that the disturbance effect is achieved, uniform heating is guaranteed, and the heat exchange effect is improved.

The application discloses a device and method for unblocking sandstone geothermal well based on gas-liquid mixture, and relates to the technical field of geothermal water recycling.The device comprises a geothermal recharge well, a pump vehicle, an air compressor, a water tank, a filter tank, a sand remover, a water collecting pipeline, a valve and a pipeline.The pipeline comprises an input pipeline and an output pipeline.The one end of the pump vehicle and the air compressor are connected with the geothermal recharge well through the input pipeline.The other end of the geothermal recharge well is connected with the sand remover through the output pipeline.The other end of the sand remover is connected with the filter tank through the pipeline.The other end of the filter tank is connected with the first end of the water tank through the pipeline.The second end of the water tank is connected with the other end of the pump vehicle through the pipeline.The third end of the water tank is connected with the water collecting pipeline through the valve.The application has the advantages of obvious improvement of unblocking effect of the sandstone geothermal recharge well, shortened operation period, saved operation cost, environmental protection effect, and prolonged service life of the sandstone geothermal recharge well.

The invention discloses a geothermal water multi-factor remote sensing detection method, system and device, a medium and a product, and the method comprises the steps: obtaining a thermal radiation anomaly index and a surface temperature anomaly index through multi-temporal thermal infrared preliminary screening and surface temperature inversion; the method comprises the following steps: extracting a vegetation stress index VIBS by utilizing the characteristic that terrestrial heat inhibits vegetation, and obtaining a comprehensive altered mineral index MI according to mineral alteration characteristics and a spectral unmixing method; based on ALOS PALSAR, a fracture-fracture zone is extracted, and a construction advantage degree SF is quantified; gRACE gravity image data are introduced to form hydrological favorable degree HF; geothermal water indication characteristics are integrated, multi-factor scoring and grading are fused to obtain a comprehensive geothermal anomaly distribution map, and finally boundary refinement and field verification are carried out through unmanned aerial vehicle thermal infrared / multispectral aerial survey. According to the method, false detection and missing detection can be remarkably reduced, and the accuracy and field efficiency of geothermal anomaly recognition are improved.

The invention relates to the technical field of water treatment in geothermal resource development, in particular to geothermal water desanding equipment for geothermal utilization, which comprises a pressure regulating mechanism, a multi-stage separation mechanism and a detection mechanism. Wherein the pressure regulating mechanism is used for regulating the pressure of geothermal water through a reducing pipeline and a pressure balancing assembly; the multi-stage separation mechanism is composed of a rotational flow cavity assembly, a filtering assembly and a precipitation assembly, and efficient solid-liquid separation is achieved; the detection mechanism comprises a detection module and an adjusting device and monitors and adjusts the operation state in real time. The effect of effectively removing sand grains in geothermal water is achieved, the water quality purity is remarkably improved, meanwhile, the equipment blockage risk is reduced, and the utilization rate of geothermal resources and the system stability are improved.

The invention belongs to the technical field of geological storage of CO2, and particularly relates to a system and a method for mineralizing and storing CO2 by utilizing geothermal tail water. The invention discloses a system for mineralizing and sealing CO2 by utilizing geothermal tail water. The system comprises a CO2 mixing device and a geothermal water treatment device, a tail water inlet, a gas inlet and a liquid outlet are formed in the CO2 mixing device; the geothermal water treatment device is a geothermal heating or geothermal power generation device and is provided with a geothermal water inlet and a tail water outlet; the tail water inlet is communicated with the tail water outlet through a tail water conveying pipeline, the gas inlet is communicated with the CO2 gas collecting device through a gas pipeline, and the liquid outlet is communicated with the injection well through a liquid pipeline; the CO2 gas collecting device is connected with one end of a CO2 pipeline, the other end of the CO2 pipeline extends into the injection well, and a CO2 ejector is fixed in the injection well; and the geothermal water inlet is communicated with the geothermal water mining well through a pipeline. According to the system and method, geothermal resources in deep karst heat storage are exploited, and the requirement of the society for clean energy can be met.

The invention provides a thermoelectric helium trigeneration system based on medium-deep geothermal energy ORC power generation. Comprising a modular integrated straight ORC generator set, a heating system, a helium separation pressure storage system, an air cooling / ground cooling composite system and a recharge system. According to the system, a modular integrated direct ORC generator set is adopted, geothermal water directly enters the generator set, an air cooling / geothermal cooling composite cooling cost-reducing and efficiency-increasing technology is arranged, part of heat which is originally lost through an air cooling system is stored underground, cross-seasonal heat storage is achieved, and the energy efficiency and economical efficiency of the system are remarkably improved; and a geothermal helium extraction process system is integrated, so that diversified and efficient utilization of geothermal energy is realized. The system is a poly-generation process technology integrating heat supply, helium extraction and geothermal power generation, and application of geothermal power generation and helium extraction is achieved.

The embodiment of the invention discloses a geothermal well recharge system and method.The geothermal well recharge system comprises an aeration tank, an exhaust device and a gas replacement device, the aeration tank and the gas replacement device are both connected with the exhaust device, recharge water formed after geothermal water is subjected to heat removal is stored in the aeration tank, and the aeration tank is connected with the exhaust device; the aeration tank is used for conveying recharge water into the exhaust device, and the replacement gas device is used for conveying replacement gas into the aeration tank. According to the geothermal well recharge system disclosed by the embodiment of the invention, the recharge water is purified through the aeration tank, and the exhaust is performed through the exhaust device, so that the gas content and suspended impurities in the recharge water are greatly reduced, the gas overflow amount after the recharge water is injected into the recharge well is reduced, gas blockage is prevented from being formed in the recharge system, and the service life of the recharge system is prolonged. And impurities are prevented from entering a recharge system to cause blockage of a recharge passage.

The invention relates to the field of gas collection and productivity determination, in particular to a geothermal water associated gas collection and productivity determination device and method.The collection and productivity determination device comprises a gas-liquid separator, a gas collection container and a productivity determination container; the gas collection container is provided with a gas port and a liquid port, the gas port is used for introducing associated gas, and the liquid port is used for discharging liquid filled in the gas collection container in advance, so that the associated gas is collected by using a water-driving gas collection method; the capacity measuring container is provided with a gas port and a liquid port, and is provided with a liquid level scale or a liquid level sensor, the gas port is used for introducing associated gas, and the liquid port is used for discharging liquid filled in the capacity measuring container in advance, so that the liquid level height in the capacity measuring container is changed by using a water-driving gas-collecting method. According to the embodiment of the invention, three functions of gas-liquid separation, gas sample collection and gas productivity determination can be realized.

The invention discloses a natural gas expansion and ORC combined cycle residual pressure power generation system and a control method thereof, and the system comprises a natural gas preheating unit which preheats high-pressure natural gas through a composite heat storage unit; the expansion machine power generation unit adopts a multi-stage series expansion machine for step-by-step voltage reduction power generation; the ORC power generation unit uses the expanded cold energy to drive an organic Rankine cycle to generate power, and a condenser of the ORC power generation unit synchronously heats natural gas to form closed-loop utilization of cold and hot energy; and the composite heat storage unit dynamically balances heat supply of geothermal water and solar energy based on reversible reaction of heat storage. According to the control method, efficient and safe operation of the system is achieved through dynamic monitoring, natural gas preheating control, expansion machine power generation control, ORC cycle cooperative control, composite heat storage dynamic regulation and control, safety and energy efficiency closed-loop feedback and the like. By comprehensively utilizing the natural gas expansion module, the ORC cycle module and the thermochemical heat storage module, the overall energy efficiency, stability and power generation efficiency of the system are improved, and remarkable energy conservation and emission reduction effects are achieved.

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 invention provides a single well closed circulation and gravity assisted heat pipe coupling type heat exchange system, and mainly relates to the technical field of geothermal resource development. A single well closed circulation and gravity assisted heat pipe coupling type heat exchange system comprises a first heat collection unit, a second heat collection unit, a first heat pump system, a second heat pump system and an indoor heat dissipation unit, and the indoor heat dissipation unit is connected with the output end of the first heat pump system and the output end of the second heat pump system. And the first heat collecting unit is used for receiving and dissipating heat transmitted by the first heat pump system and the second heat pump system, the first heat collecting unit adopts a gravity assisted heat pipe assembly, and the second heat collecting unit adopts a single-well closed circulation heat exchanger. The system has the beneficial effects that a single well closed circulation and gravity assisted heat pipe coupling mode is adopted, cooperative work of two efficient heat collecting modes is achieved, closed design is adopted in the whole system, geothermal water is not extracted or recharged, and the heating reliability can be greatly improved through the design of the double heating systems.

The invention discloses a renewable energy driven coupling heat and power cogeneration system and an operation method thereof. Geothermal water resources are utilized in a gradient mode according to a temperature interval, and hot water exploited from a geothermal well is filtered and then drives an organic Rankine cycle system to generate power; geothermal water subjected to heat exchange through the evaporator is used for resident heating, heating return water preheats an organic working medium through a preheater of the organic Rankine cycle system, and therefore the power generation efficiency of the system is improved. Geothermal water passes through the preheater and then enters a floor heating pipeline to be used for floor heating heat supply of residents. The maximum circulation heat efficiency and efficiency of the two organic Rankine cycles can be achieved through circulation organic working medium screening and operation parameter optimization; through combination of power generation and heating, the comprehensive utilization efficiency of system energy is improved; and meanwhile, in combination with heat using scenes such as a constant-temperature swimming pool and wetland restoration, waste heat resources of floor heating return water and hot water at an outlet of the condenser are recycled, and maximum waste heat recovery of the system is achieved.

The utility model relates to a terrestrial heat water pumping sampling device, and relates to the technical field of water pumping sampling, the terrestrial heat water pumping sampling device comprises a sampling cylinder and a lifting mechanism, the lifting mechanism is connected with the sampling cylinder, the sampling cylinder comprises a cylinder body and a top cover, the top cover is installed at the top of the cylinder body, a water inlet groove is formed in the bottom of the cylinder body, a plugging piece is arranged in the water inlet groove, and a sealing plate is installed in the cylinder body; a plurality of springs are arranged between the sealing plate and the top cover, a connecting column is arranged on one side of the sealing plate, a supporting column is arranged on the other side of the sealing plate, the other end of the supporting column is connected with a plugging piece, the other end of the connecting column penetrates through and extends out of the top cover, the top of the connecting column is connected with a traction rope, and the top cover is connected with a lifting mechanism. The geothermal well sampling device has the advantages that the sampling barrel can be rapidly placed in and taken out of a geothermal well, operation is relatively simple, sampling work can be completed within a short time, sampling efficiency is improved, large-scale pipeline laying engineering is not needed, input of manpower and material resources is reduced, and sampling cost is reduced.

The invention provides an analysis and collection device for geothermal water associated gas, which comprises a gas-liquid separation unit, a collection unit and a filter unit, and the filter unit comprises a filter box, a filter assembly, a driving assembly and a vibration assembly. And the filter box is provided with a horizontally arranged filter channel. A water inlet and a water outlet are respectively formed in two ends of the filter box. The filtering assembly is arranged in the filtering channel and is in sliding connection with the filtering channel. The filtering assembly is provided with an inclined filtering part and an arched filtering part which are obliquely arranged. The driving assembly can drive the filtering assembly to reciprocate. The vibration assembly is provided with a knocking end capable of knocking the filtering assembly periodically in the reciprocating movement process of the filtering assembly. The analyzing and collecting device for geothermal water associated gas can resist the impact force of solid particles, vibration is formed through linkage knocking, and the solid particles on the filter assembly are shaken off.

The invention discloses a protective coating suitable for rail transit in a high-altitude environment and a preparation method of the protective coating, and belongs to the technical field of functional materials, the coating adopts a unique five-layer composite structure design, and is prepared through precise layered coating and a specific curing process. The coating system has a synergistic effect, comprehensively overcomes multiple harsh factors such as high-altitude strong ultraviolet rays, geothermal water gushing, severe temperature change, sand wind erosion and corrosive media, and provides excellent weather resistance, impact resistance, long-acting corrosion resistance, firm adhesive force and electrical insulating property. The preparation process is high in controllability, the overall protection performance of the coating is remarkably superior to that of a traditional single-layer or three-layer coating, the service life of a vehicle in a high-altitude complex environment can be greatly prolonged, and the maintenance cost is reduced.

To provide a hot water tank that is easy to maintain. [Solution] The hot water storage tank (11) comprises a tank body (12) in which hot water is stored, a heat exchanger (13) that heats the hot water with steam via a heat transfer plate (13C), and a circulation pipe (14) having an outward pipe (14A) that guides the hot water from inside the tank body (12) to the heat exchanger, and a return pipe (14B) that guides the hot water from the heat exchanger (13) back into the tank body (12). Preferably, the hot water storage tank (11) comprises a pump (17) that sends hot water from the outward tank body (12) to the heat exchanger (13), and a make-up water pipe (20) that is connected to the outward pipe (14A) between the tank body (12) and the pump (17).

The present invention belongs to the field of the development of new adsorbents and comprehensive utilization of resources, and discloses a preparation method of an inorganic tin sulfide adsorbent and its application in cesium extraction. The adsorbent is synthesized by a hydrothermal method and has a lamellar structure. It has excellent ion exchange performance for alkali metal cesium ions in an aqueous solution and exhibits excellent adsorption selectivity. The adsorbed material can be regenerated, thus realizing the recycling of the adsorption material. The preparation process of the adsorption material provided by the present invention is simple and low in cost. Therefore, the adsorption material prepared by the present invention can be used for the extraction of cesium in geothermal water, salt lake brine, and underground brine, and can also be applied to the separation and extraction of cesium in solid cesium ore or associated ore leaching solutions.

An organic working medium and steam combined geothermal power generation system comprises a steam power generation system, and the steam power generation system comprises an evaporator, a steam turbine, a mixed condenser and a first recharge pump which are connected in sequence; comprising an organic working medium power generation system, the organic working medium power generation system comprises an organic working medium evaporator, an organic working medium turbine, a surface type condenser and an organic working medium pump which are sequentially connected, the steam power generation system and the organic working medium power generation system are communicated through a valve, and the steam power generation system takes water from a geothermal exploitation well. Compared with the prior art, by means of gradient utilization of high-temperature geothermal water, geothermal resources are utilized to the maximum extent, the power generation capacity per ton of water is improved, and meanwhile the power generation efficiency and the power generation capacity of the system are improved.

An improved process for the recovery of heat from geothermal water by adding calcium hydroxide in a controlled manner to transform silica dissolved in the water into suspended calcium silicate hydroxide thereby reducing silica deposition and enabling more heat to be recovered from the water.

The present invention discloses a combined system for thermovoltaic power generation and water temperature control in a geothermal hot spring pool, comprising a hot spring pool and a thermovoltaic power generation device. The hot spring pool is provided with an insulation wall, which separates the hot spring pool into a hot spring power generation unit and a hot spring therapy pool via the insulation wall. The thermovoltaic power generation device is provided in the hot spring power generation unit. The hot spring power generation unit is provided with a geothermal water inlet, through which high-temperature geothermal water enters the hot spring power generation unit. The hot spring therapy pool is provided with a temperature control valve system, which is used to control the temperature of the hot water entering the hot spring therapy pool. The present invention innovatively integrates pulsating heat pipes and thermovoltaic power generation technology, fully utilizing natural hot spring thermal energy. Before lowering the temperature to a comfortable human body temperature, it maximizes the temperature difference between hot spring water and cold water, utilizes pulsating heat pipes to effectively increase the heat exchange area and heat extraction, and simultaneously employs thermovoltaic power generation chips to directly convert the hot spring thermal energy into electrical energy, thus achieving the dual functions of hot spring water temperature regulation and geothermal power generation.

The invention belongs to the technical field of geothermal water recycling, and discloses a filtering device for geothermal water recycling and a using method thereof. Comprising a base, four supporting legs, a settling barrel, a first connecting pipe, a filtering barrel, a second connecting pipe, a dosing barrel, a first cover plate, a second cover plate, a third cover plate, an inlet pipe, an outlet pipe, a buffer pipe, a dosing pipe, a stirring mechanism, a filtering mechanism, a screeding mechanism and an intercepting mechanism, the four supporting legs are fixedly connected with the four corners of the bottom of the base, and the settling barrel is placed on the right side of the top of the base; the filtering barrel is placed in the middle of the top of the base, the dosing barrel is placed on the left side of the top of the base, and one end of the inlet pipe is fixedly communicated with the middle of the right side of the settling barrel. The problems that an existing filtering device cannot achieve continuous purification, the overall treatment mode is single, geothermal water cannot be effectively disinfected, the purification intensity is improved, a filtering plate in the existing filtering device is prone to being blocked, and the filtering effect is poor are solved.

The invention discloses an operation method of a medium-deep geothermal large-temperature-difference low-temperature heat supply system, which comprises the following steps: selecting an outdoor air temperature calculation formula according to daily hourly outdoor air temperature data predicted by weather, and calculating outdoor calculated air temperature for guiding the water temperature adjustment of a secondary heat supply network; the secondary heat supply network water supply temperature under the variable working condition and the secondary heat supply network water return temperature under the variable working condition are calculated and adjusted; the primary heat supply network water supply temperature and the primary heat supply network water return temperature under the variable working conditions are calculated; calculating geothermal water adjusting flow; then judging whether the recharge temperature of geothermal water is less than or equal to 25 DEG C; if yes, the geothermal water flow meets the operation adjusting requirement of the heat supply system, and the power of the water-water heat exchange subsystem 1 is adjusted and controlled according to the calculated geothermal water adjusting flow; and if not, after the load rate of the heat pump subsystem is adjusted, the third step is executed again, and the heat supply network adjusting water temperature is calculated again. The medium-deep layer geothermal energy development and utilization efficiency is improved, the heat supply cost is reduced, the heat supply radius is increased, and the applicability of the medium-deep layer geothermal energy heat supply technology and the engineering adaptability are improved.