153 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 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 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 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).

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 invention relates to resource exploration and environment monitoring, and particularly discloses a device and a method for collecting bubble gas in geothermal water, and the device comprises a gas collection probe, a sample tank and an integrated control host. The gas collection probe is immersed in a water body, and a hydrophobic gas-permeable membrane assembly in the gas collection probe can selectively permeate and enrich bubble gas. The integrated control host comprises a control unit, a power unit and a sensing unit, the power unit drives gas to directionally transfer between the gas collection probe and the sample tank along a preset gas path, and the sensing unit acquires key parameters in the collection process in real time. And the control unit regulates and controls the power unit to operate according to the parameters, so that gas collection, treatment and storage circulation are automatically executed. According to the device, through cooperation of the structures, automation and intelligentization of the gas collection process are achieved, and the sampling efficiency, the operation standardization degree and the consistency of the sample quality are effectively improved.

The invention provides a method for determining in-situ composition of geothermal water, and belongs to the technical field of geothermal energy development. Geothermal water, geothermal gas and spring bloom or scale samples are collected, chemical composition analysis of the geothermal water, component analysis of the geothermal gas (including absolute content of CO2 and H2S) and mineral composition analysis of the spring bloom or scale are carried out, and then according to the geochemical process of mother geothermal fluid rising from a deep reservoir to the earth surface, the geothermal gas is analyzed. And determining whether cold water mixing, gas escape and mineral precipitation occur in the geothermal water, finally correcting the influence of the generated geochemical action on the chemical components of the geothermal water, and calculating the chemical components of the in-situ geothermal fluid. According to the invention, the problem that the scaling property, corrosivity and thermal storage temperature evaluation of the thermal storage fluid are inaccurate due to the fact that the chemical composition of the mother geothermal fluid cannot be represented due to the geochemical effect of changing the composition of the existing surface thermal spring water or borehole geothermal well water in the upflow process can be solved.

The present application belongs to the technical field of geothermal utilization, and discloses a sandstone heat storage geothermal well heat extraction without water extraction high-efficiency utilization system and a construction method of the system. The main technical features are as follows: the system comprises a geothermal well, a water outlet pipe, a heat exchanger and a water return pipe, a desander and a circulating pump are arranged on the water outlet pipe, a first water stop plate is arranged on the water outlet pipe below each non-bottom heat storage aquifer, and a second water stop plate is arranged on the water outlet pipe at an upper position of the middle part of the bottom heat storage aquifer. During the descending process of the recharge water, part of the recharge water flows into the corresponding heat storage aquifer when passing through each non-bottom heat storage aquifer, and the other part of the recharge water flows downward along the gap between the elastic plate and the inner wall of the well pipe. The water with a higher temperature in the bottom heat storage aquifer is supplemented into the well pipe under the pressure of the bottom heat storage aquifer. The geothermal water extracted from the whole water outlet pipe has a higher temperature and a higher heat efficiency, and the underground water is not polluted.

The invention relates to the technical field of geothermal energy utilization, in particular to a hydrothermal / hot dry rock type geothermal power generation and comprehensive utilization system which comprises a unit for utilizing hydrothermal geothermal water and a unit for utilizing hot dry rock type geothermal water, the unit comprises a gas-liquid separator, a flash evaporator, a helium extraction membrane set and a steam turbine, and the unit comprises a gas-liquid separator, a flash evaporator, a helium extraction membrane set and a steam turbine. The unit comprises: an organic Rankine cycle generator set; a liquid outlet of the gas-liquid separator is connected with an inlet of the flash evaporator through a pipeline, a gas outlet of the gas-liquid separator is connected with an inlet of the helium extraction membrane set through a pipeline, and a liquid outlet of the flash evaporator exchanges heat with a heat regenerator of the organic Rankine cycle generator set. A gas outlet of the flash evaporator is connected with an inlet of the steam turbine through a pipeline, and an output shaft of the steam turbine drives the helium extraction membrane group.

The utility model relates to the technical field of helium, and discloses a system for extracting helium by-product hydrogen from geothermal water dissolved gas. The system comprises a temperature adjusting module and a degassing module, wherein an inlet of the temperature adjusting module is externally connected with a ground hot water pipeline, and an outlet of the temperature adjusting module is communicated with an inlet of a helium collecting module; the system further comprises a helium collecting module and a helium purifying module, an inlet of the helium collecting module is communicated with the helium outlet of the degassing module, and an outlet of the helium collecting module is communicated with an inlet of the helium purifying module. The system for extracting helium and byproduct hydrogen from geothermal water-dissolved gas has the advantages of high helium recovery rate, small total investment and low energy consumption, can produce hydrogen as a byproduct, and can effectively solve the restriction problems of multiple water-dissolved helium resource wells, difficulty in utilization, low benefit and the like.

An improved process for recovering heat from geothermal water by converting silica dissolved in water into suspended calcium silicate hydroxide by adding calcium hydroxide in a controlled manner, thereby reducing the deposition of silica and being able to recover more heat from water.

The invention provides a geothermal water pressurizing, cooling and scale preventing system and method. The system comprises a water turbine, a heat exchanger, a production well and a recharge well. The water turbine is provided with an inlet end and an outlet end, and the outlet end of the water turbine is communicated with the recharge well; the water turbine is connected with the direct-current generator and the centrifugal pump through the coupler; the heat exchanger is provided with an inlet end and an outlet end; the outlet end of the heat exchanger is communicated with the inlet end of the water turbine through a pipeline; the inlet end of the heat exchanger is communicated with the production well through a pipeline; the centrifugal pump is provided with an inlet end and an outlet end, and the inlet end of the centrifugal pump is communicated with the outlet end of the heat exchanger through a pipeline; and the outlet end of the centrifugal pump is communicated with the inlet end of the heat exchanger through a pipeline. According to the geothermal anti-scaling process system, the generation amount of calcium carbonate scales of geothermal water side heat exchanger equipment and pipelines is reduced, generation of harmful factors such as blockage is reduced, the overhaul and maintenance cost is reduced, and the operation stability of a geothermal heat supply system is enhanced.

The geothermal water conveying system comprises a water taking section, a water conveying section and a water using section. Wherein the water taking section comprises a first pipeline and a water taking pump, one end of the first pipeline extends into the ground, the other end of the first pipeline is connected with the water inlet end of the water taking pump, the water conveying end comprises a second pipeline and a plurality of booster pumps arranged on the second pipeline at intervals in the conveying direction of the water conveying section, and one end of the second pipeline is connected with the water outlet end of the water taking pump; the water section comprises a third pipeline and a water pump, the water inlet end of the water pump is connected with the other end of the second pipeline, the water outlet end of the water pump is connected with one end of the third pipeline, and the other end of the third pipeline is connected with a user. According to the geothermal water conveying system, the multiple booster pumps are arranged in the conveying direction of the conveying section, the geothermal water in the second pipeline can be pressurized in the conveying process of the geothermal water, the problem that the pressure of the geothermal water in the second pipeline is reduced in the conveying process is avoided, and the conveying efficiency of the geothermal water can be improved.

The device comprises a water suction pump, a water conveying pipe is fixedly connected to the right side of the water suction pump, at least two sets of processing mechanisms which can be online standby for each other are fixedly connected to the right side of the water conveying pipe, one set is in a running state, and the other set is in a standby state. The left side of the treatment mechanism is fixedly connected with a water pipe, the right side of the water pipe is fixedly connected with a control pump, each treatment mechanism comprises a treatment box, the left side face of the inner side of each treatment box is rotationally connected with a rotating frame, and the outer side of each rotating frame is movably sleeved with a filter screen cylinder; the two mechanisms are switched through an external valve, hot water and water supplementing and draining loops are alternated, and shutdown is not needed during maintenance; the liquid level sensor and the control pump supplement water in a closed loop mode, and geothermal water full-recycling circulation is formed. The functions of filtering, flash evaporation, water supplementing and slag discharging are achieved through the single cavity, redundancy of multiple cavities is omitted, and the system is suitable for various geothermal power stations.

The invention relates to the technical field of desanding devices, and discloses a geothermal well efficient desanding device and method.The geothermal well efficient desanding device comprises a desander shell and a rotational flow path adjusting assembly; the sand remover shell is provided with an upper shell, a lower shell arranged at the bottom of the upper shell, a water inlet pipe arranged on the outer wall of the upper shell, a sand outlet pipe arranged at the bottom of the lower shell and a first water outlet pipe arranged at the top of the upper shell, and a curved surface structure is arranged in the upper shell and used for guiding entered water flow to spirally flow; the rotational flow path adjusting assembly comprises a conical film arranged on the bottom face of the upper shell and used for connecting the upper shell and the sand outlet pipe, reinforcing ribs arranged on the outer edge of the edge of the conical film, high-elasticity pieces inserted into the reinforcing ribs in a penetrating mode and an arc-shaped film arranged on the inner edge of the edge of the conical film. According to the device, by dynamically adjusting the rotational flow path, it is ensured that geothermal water with different flow rates can form stable spiral flow, and the centrifugal separation effect is maximized.

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 hydrothermal type geothermal water well heat taking system comprises a geothermal water well body, the geothermal water well body comprises a sleeve and a heat preservation pipe, the sleeve is arranged on the outer side of the heat preservation pipe in a sleeving mode, the sleeve comprises a sleeve vertical section and a sleeve horizontal section which are connected, and the heat preservation pipe comprises a heat preservation vertical section and a heat preservation horizontal section which are connected; the casing vertical section and the heat preservation vertical section are located in a reservoir overlying stratum, the casing horizontal section and the heat preservation horizontal section are located in a geothermal water reservoir, the end, away from the heat preservation vertical section, of the heat preservation horizontal section is communicated with the end, away from the casing vertical section, of the casing horizontal section, and a packing piece is arranged at the end, away from the casing vertical section, of the casing horizontal section. The direction from the end, close to the vertical sleeve section, of the horizontal sleeve section to the end, away from the vertical sleeve section, of the horizontal sleeve section is the first direction, and the first direction is opposite to the flowing direction of geothermal water in the geothermal water storage layer. Therefore, the hydrothermal type geothermal well heat taking system has small influence on the geothermal water reservoir and is high in heat exchange efficiency.

The invention discloses a distributed power generation system based on energy storage thermal transformer and ORC coupling and a control method. The distributed power generation system comprises an energy storage temperature change unit, an organic Rankine cycle unit and a monitoring execution unit. The organic Rankine cycle unit comprises a geothermal water flow path and a working medium circulation flow path; two groups of parallel working medium pipes and geothermal water pipes are arranged in the evaporator, the working medium pipes are connected in the working medium circulating flow path, and the geothermal water pipes are communicated with high-temperature branches of the geothermal water flow path; the monitoring execution unit firstly controls the ECU control valve assembly to be opened / closed according to the water temperature entering the geothermal water main pipe, so that the system directly uses geothermal water to heat the first solution tank / the second solution tank to maintain the operation of the organic Rankine cycle unit, or uses the energy storage temperature change unit to execute the step of energy storage temperature change. And opening / closing of the heat pipe valve assembly and the steam valve assembly is controlled according to the steam flow in the low-temperature branch, so that the steam, the geothermal water and the organic working medium flow through corresponding elements through the steam pipeline, the geothermal water flow path and the working medium circulation flow path.

The present application relates to geothermal well technical field, disclose a kind of anti-blocking geothermal tail water recharge device and method, in which, a kind of anti-blocking geothermal tail water recharge device, including recharge well, filter well, liftable recharge cage, liftable pollution storage box and expandable dirt scraping mechanism;Dirt scraping mechanism is composed of center plate and arc plate, forms pollution storage cover after expansion, and the outer wall of pollution storage cover is equipped with second slope scraper and arc scraper;Drive assembly controls dirt scraping mechanism expansion / contraction and pollution storage box lifting, and recharge cage resets through first extension spring, and when resetting, it is scraped off particle by first slope scraper;By setting liftable dirt scraping and reset type particle cleaning, without shutdown disassembly, by lifting, it can be completed multi-zone pollution control, simultaneously cooperate with the anti-jamming structure of the guide wheel of first guide groove and second guide groove, prevent particle from accumulating in pipe column, so that the long-term stability of the inner diameter of pipe column, solve the problem of slow cleaning, particle accumulation of traditional device.

The utility model discloses an ORC (organic Rankine cycle) geothermal power generation comprehensive gradient utilization system, which relates to the technical field of ORC geothermal power generation and comprises a geothermal production well, a recharge well, a complete ORC generator set, a first-stage plate heat exchanger, a second-stage plate heat exchanger, a recharge water treatment device, a softened water tank, a water softener, a make-up pump, a cooling tower, a heat pump unit, a heat user side, a cooling circulating pump and a submersible pump. The complete ORC generator set comprises an evaporator, a preheater, a condenser, a generator and a working medium pump, a submersible pump is arranged in the production well, and the submersible pump is connected with the evaporator through a pipeline. According to the ORC geothermal power generation comprehensive gradient utilization system, a two-stage plate heat exchanger, a heat pump unit, a circulating water pump and other equipment are additionally arranged on the basis of traditional ORC geothermal power generation, the temperature utilization rate of geothermal water for geothermal power generation is increased, geothermal energy is converted into heat energy for heating to the maximum extent, and the heat supply capacity is improved.

The utility model discloses a multi-layer water quality detection sampling device for geothermal water, which relates to the technical field of geothermal water detection and comprises a plurality of fixing cylinders, the fixing cylinders are sequentially connected along the vertical direction, a sampling pipe is arranged in each fixing cylinder, and a first water inlet hole is formed in the outer wall of each fixing cylinder; and the movable cylinder is connected to the exterior of each fixed cylinder in an up-down sliding mode, a floating ring is arranged at the top of the movable cylinder, and multiple layers of second water inlet holes are vertically formed in the outer wall of the movable cylinder at intervals. According to the utility model, the floating ring is subjected to buoyancy to drive the moving cylinder to slide upwards, so that geothermal water at different depths enters the sampling pipes at different depths through the second water inlet hole and the first water inlet hole in sequence, and after collection is completed, the floating ring leaves the water surface, and the moving cylinder descends and resets under the action of self gravity; the second water inlet hole and the first water inlet hole are staggered, so that the fixed cylinder is sealed, and geothermal water at different depths is prevented from entering the sampling pipe in the ascending process of the device.

The cogeneration system comprises an energy storage heat exchange subsystem and an organic working medium circulation subsystem, the energy storage heat exchange subsystem comprises a thermochemical energy storage assembly used for storing solar energy, a first heat exchanger with a hot side inlet connected with the thermochemical energy storage assembly, and a second heat exchanger connected with a hot side outlet of the first heat exchanger; a cold side inlet of the first heat exchanger is connected with a geothermal water production well; the organic working medium circulation subsystem comprises an evaporator and a first preheater, a hot side inlet of the evaporator is connected with a cold side outlet of the first heat exchanger, a cold side outlet of the evaporator is connected with a cold side inlet of the second heat exchanger, a hot side inlet of the first preheater is connected with a hot side outlet of the evaporator, and a cold side outlet of the first preheater is connected with a cold side inlet of the evaporator. According to the invention, geothermal energy and solar energy thermochemical energy storage can be coupled to provide heat energy for the organic working medium circulation subsystem together, so that combined heat and power generation is carried out, and efficient utilization of geothermal energy and solar energy is realized.