133 results about "Water extraction" patented technology

The utility model discloses a polysaccharide water extraction system, and particularly relates to the technical field of saccharide extraction, the polysaccharide water extraction system comprises a supporting bottom plate, the top of the supporting bottom plate is fixedly connected with a liquid pump, a plurality of vertical rods and positioning rings located on one sides of the vertical rods, inserting rods are inserted into the tops of the vertical rods, and the two ends of each inserting rod are fixedly connected with a limiting block and a top block respectively; a fastening bolt is inserted into one side of the top end of the vertical rod, and a resin separation column is arranged on one side of the vertical rod. According to the device, firstly, the plurality of resin separation columns are connected in series, so that sugar components can be extracted from raw material liquid in a grading manner, the liquid in required steps can be extracted as required by rotating the three-way valve, the extraction and detection of intermediate separated liquid are facilitated, and the plurality of resin separation columns are connected end to end through the connecting hose and the connecting short pipe; different raw material liquids can be conveniently and flexibly combined and used when being separated and extracted, so that the liquid required by a target is obtained, and the use is convenient.

The application discloses a ship-mounted in-situ calibration device and method for a seabed suspended sediment concentration profile probe, which comprises a cylindrical water tank main body, an ASM and a support frame thereof, a driving motor, a rotating paddle, a cylindrical support, a water pump and a valve. The method comprises the following steps: horizontally arranging the ASM in the water tank through the support frame; extracting in-situ seawater on the ship deck for calibration by using the water pump; driving the paddle by the motor to uniformly mix the water sample; and extracting the water sample by opening the water extraction valve at different time intervals, wherein the water extraction valve is arranged on the side of the water tank and is consistent with the measurement elevation of the ASM, is used for extracting the water sample at the same elevation of the ASM, and tests the consistency of each sensor of the ASM. The water sample concentration can well cover the in-situ concentration range under normal circumstances by sampling at different time intervals in the static water sedimentation process. The in-situ seawater is extracted on the spot for calibration, so that the difference between the particle size range and the concentration range of the sediment suspension liquid prepared in the laboratory and the actual observation station is avoided.

This invention discloses a rapid drilling device and method for the floor of coal mine roadways. It includes a drilling rig, drill rods, and a drill bit. The drill rods consist of a transition drill rod and a circular drill rod. A water channel is provided through the transition drill rod, the circular drill rod, and the drill bit at a certain thickness. A water extraction pipe is provided inside the transition drill rod and the circular drill rod. A water extraction pipe and a water supply pipe are sleeved through the center of the drill arm. The drill arm's water extraction pipe communicates with the drill rod's water extraction pipe and the drill bit's inner cavity. The drilling rig's water supply pipe communicates with the drill rod's water channel. During drilling, water injected from the water supply pipe enters the bottom of the hole through the water channel. The water at the bottom of the hole, carrying drill cuttings, is extracted sequentially through the hollow drill bit, the drill rod's water extraction pipe, and the drill arm's water extraction pipe under external negative pressure. This allows drilling mud to be continuously extracted from the center of the drill rod during drilling, eliminating the need for special drill bit removal and cuttings disposal, shortening the drilling progress, greatly improving drilling efficiency, ensuring the floor pressure relief effect, and providing technical support for safe production on site.

The application relates to the technical field of UPS, in particular to a protection device for machine rooms and transformer substations, which comprises a protective shell, a cooling mechanism for cooling the electricity inside the protective shell, an air inlet shell fixed to one side of the outer wall of the protective shell, a fixing cylinder inserted into one end of the outer wall of the air inlet shell, an air extraction fan installed on the inner wall of the fixing cylinder, and air outlet holes with equal distances arranged on the top of the outer wall of the air inlet shell. The cooling mechanism is provided, the air extraction pump is started, the air outside can be extracted into the air inlet shell, the filter screen can preliminarily filter the dust in the air, the filtered air can enter the protective shell through the hollow shell, the heat exchange pipe and the exhaust pipe, the water extraction pump is started, the water in the water storage shell can be sprayed onto the outer wall of the heat exchange pipe through the output pipe and the liquid spraying nozzles on the liquid spraying pipes, and the air on the heat exchange pipe can be cooled.

The invention relates to the technical field of coal mine safety production, and discloses coal mine gas control gas automatic discharge integrated rapid measurement equipment. The equipment comprises a detecting and discharging mechanism arranged on one side of the top of a coal mine shaft and a water filtering basket arranged at the bottom of the shaft, gas discharging and shaft accumulated water treatment are uniformly constructed in the same system level, and cooperative treatment of gas and liquid in the shaft is achieved. The detecting and discharging mechanism is used for detecting the concentration of gas above the shaft in real time and controlling the opening of a discharging channel when needed; the water filtering basket is used for receiving accumulated water at the bottom of the shaft and cooperating with drainage operation. The system can be automatically switched between an air exhaust working condition and a water pumping working condition according to the gas concentration change and the water accumulation state in a well, so that the problems of complicated structure and poor coordination caused by separated arrangement of a gas discharge system and a drainage system in the prior art are solved; and the integrality, the response timeliness and the operation reliability of coal mine shaft environment management are improved.

The application provides a control system and method for medium-pressure steam admission in a gas-steam combined cycle unit, comprising a medium-pressure water extraction pump, a superheater, a medium-pressure bypass regulating valve, a condenser, a medium-pressure steam regulating valve, a reheater and a steam turbine, the medium-pressure water extraction pump is connected with the superheater through a pipeline, the water outlet of the superheater is connected with the condenser and the medium-pressure cylinder of the steam turbine through pipelines, the medium-pressure bypass regulating valve is arranged on the pipeline corresponding to the condenser, the medium-pressure steam regulating valve is arranged on the pipeline corresponding to the steam turbine, and the reheater is arranged between the medium-pressure steam regulating valve and the steam turbine. The control system and method for medium-pressure steam admission in the gas-steam combined cycle unit can maintain the medium-pressure drum liquid level in a safe liquid level range through the medium-pressure feedwater regulating valve, realize automatic control during medium-pressure steam admission through the opening and closing of the medium-pressure steam regulating valve and the medium-pressure bypass regulating valve, and reduce misoperation.

The invention discloses a sand dune zone moisture extraction and separation device which comprises a supporting assembly, an extraction and separation assembly and a press-in assembly. The supporting assembly comprises a base and supporting legs; the separating and extracting assembly comprises a collecting pipe arranged in the guide hole, a separating sleeve clamped in the collecting pipe and an extracting pump arranged at the top end of the collecting pipe; a filtering pressing plate is clamped at the top in the separation sleeve; a micro motor for providing power for the filtering pressing plate is arranged at the top end of the separation sleeve; the press-in assembly comprises a fixed disc arranged on the base, a movable pressing disc arranged outside the collecting pipe in a sleeving mode, a clamping block arranged in the movable pressing disc, a follow-up driving sleeve connected to the movable pressing disc in a clamped mode and a driving component arranged on the upper end face of the fixed disc and capable of being connected with the follow-up driving sleeve. The device is reasonable in structural design, the collecting pipe can be pressed into sandy soil through the pressing-in assembly, the labor intensity of extracting soil water and underground water in a sand dune zone through manual excavation and well drilling is reduced, manpower is saved, and the extraction efficiency of the soil water and the underground water is improved.

Disclosed herein is an apparatus and method for providing a direct air capture (DAC) system of carbon dioxide to improve the energy efficiency, operability, and economic performance of DAC technologies based on multiple types of methods, including thermal swing adsorption (TSA), pressure swing adsorption (PSA), and moisture swing adsorption (MSA). In particular, disclosed herein is a DAC apparatus comprising a first water extraction unit, a process unit comprising a second water extraction unit, a carbon dioxide capture unit, and a water release unit. The present invention also provides a logic control system for a preconditioner of the proposed DAC apparatus, comprising a controller and one or more control elements in communication with a fluid stream, wherein the controller is configured to adjust the temperature, water content, or a combination thereof of the second fluid stream, the third fluid stream, or both to a predetermined range based on the cost of capturing carbon dioxide on a net removal basis.

A geothermal device and method for reconstruction of abandoned oil and gas wells. The geothermal device comprises a heat exchanger arranged at the wellhead of an abandoned oil and gas well and an unpowered heat extractor located inside the abandoned oil-gas well, wherein the unpowered heat extractor comprises a thermal insulation member and an evaporation member; the heat exchanger, the thermal insulation member and the evaporation member are sequentially in communication with each other from top to bottom; a liquid working medium is injected into the unpowered heat extractor, absorbs heat from a crude oil layer and evaporates into a gaseous working medium; the gaseous working medium is sequentially transported through the evaporation member and the thermal insulation member to the heat exchanger, condenses in the heat exchanger to release heat and turns into the liquid working medium; and the liquid working medium flows back to the bottom of the abandoned oil and gas well under the action of gravity. The present invention achieves true "heat extraction without water extraction", and does not require a water pump during operation, thereby reducing operation costs.

The utility model discloses an automatic cleaning water pumping device of a chopping and mixing machine for sausage processing, which belongs to the technical field of chopping and mixing machines and comprises a mounting base and a placing basin rotatably arranged on the mounting base, a mounting frame and a water pump are fixedly arranged on the mounting base, a rotating motor is fixedly arranged on the mounting frame, and a water pump is fixedly arranged on the water pump. A mounting plate is fixedly arranged on an output shaft of the rotating motor, a water collecting cover is fixedly arranged on the mounting plate, a water pipe is connected between the water collecting cover and the water suction pump, the water collecting cover comprises a connecting part, a water collecting part and a guiding part, a containing cavity is formed in the water collecting part, a plurality of guiding grooves are formed in the guiding part, and the connecting part is fixedly connected with the water collecting part. The multiple guide grooves are connected with the containing cavity. The connecting part is fixedly arranged on the mounting plate, the water pipe is connected to the connecting part, the water collecting part is fixedly arranged on the connecting part, and the guiding part is fixedly arranged on the water collecting part.

The present application relates to the field of extraction of Zhongjie wind tablets, and more particularly to a kind of Zhongjie wind tablet pre-processing quantitative water extraction tank.The technical problem to be solved is to provide a kind of Zhongjie wind tablet pre-processing quantitative water extraction tank which can realize quantitative water injection.A kind of Zhongjie wind tablet pre-processing quantitative water extraction tank, including mounting bracket, extraction tank, cylinder, cover plate, water injection mechanism and quantitative mechanism, mounting bracket right upper portion is connected with the extraction tank for extracting Zhongjie wind tablet liquid by bolt, the water inlet pipe is arranged in the front of extraction tank, the cylinder is rotatably connected in the right lower portion of extraction tank, the cover plate is rotatably connected in the right lower portion of extraction tank, and the cover plate is below the cylinder.The water can be quantitatively stored between the lower portion of the water injection mechanism and the lower portion of the water stop frame after being injected into the connecting tank, and then the rotating disc is rotated to block the water by the water injection mechanism.

The invention relates to the technical field of polysaccharide extraction, and particularly discloses a desert cistanche-based polysaccharide extraction method, which comprises the following steps: pretreating desert cistanche to obtain desert cistanche powder; adding water into the desert cistanche deserticola powder to infiltrate, adding ethanol, oscillating, carrying out first ultrasonic extraction after the oscillation is ended, centrifuging, pouring out supernate, carrying out post-treatment on precipitate, adding water, carrying out second ultrasonic extraction, cooling to room temperature after the second ultrasonic extraction is ended, and filtering; adding water into the filter residue for third ultrasonic extraction, cooling to room temperature after the third ultrasonic extraction is finished, and filtering to obtain a second filtrate; and mixing the two filtrates, and adding water to a constant volume to obtain the desert cistanche deserticola polysaccharide extract. According to the method, an ultrasonic-assisted method is adopted on the basis of a water extraction process, and meanwhile, by optimizing the material-liquid ratio, ultrasonic time and ultrasonic temperature parameters, the extraction rate and purity of desert cistanche deserticola polysaccharide are improved, and the extraction process is simplified.

The utility model relates to the technical field of flue gas water lifting, in particular to a dosing device for a flue gas water lifting system, which comprises a water storage tank and a dosing tank, the water storage tank is used for storing condensate water; the dosing tank is connected with the water storage tank through a conveying pipeline and is used for adding alkali into the water storage tank to neutralize the pH value of condensate water; the dosing tank comprises a tank body, and a dosing port and an exhaust port are formed in the top of the tank body; an air inlet is formed in the side part of the tank body and is connected with a compressed air source; a discharge hole is formed in the bottom of the tank body and is communicated with the top of the water storage tank. Compressed air is used for driving, compressed air is injected into the chemical adding tank through the air inlet, then chemicals in the chemical adding tank are pushed to enter the conveying pipeline through the discharging port, the chemicals in the conveying pipeline are blown to the water storage tank through the compressed air, automatic control over chemical adding is achieved through the design, the requirement for manual operation is reduced, and the chemical adding efficiency is improved. And the stability and the reliability of the system are improved.

The invention provides a water polo water injection assembly and a water polo water injection device. The water polo water injection assembly omits disassembly with an external water pipe or a water injection cylinder, is convenient to use, and is uniformly filled with water polo. The injection tube bundle is short in length, low in processing cost, wide in application range and low in water pressure requirement The water polo water injection device realizes continuous water extraction and pressure injection, thus realizing water polo water injection without the aid of water pipes, convenient use, uniform water polo water filling and simple replacement.

To provide a water filtration system that can be made compact so as to be loaded in a loading space such as a truck for transportation while purifying non-drinking water to a drinkable level.SOLUTION: A water filtration system is assembled with a target water storage tank 10 for storage of target water, a lead-out passage 20, a target water pump 30, first filtration measurement means 40 for removal of dust from target water and filtration, a return reflux passage 50, a first valve 60, a branch flow passage 70, a second valve 80, second filtration measurement means 90 for addition of a rock extract to target water for flocculation of fine foreign matters and filtration, and drinking water take-out means 100 for take-out of target water (drinking water); opening the first valve 60 and closing the second valve 80 turns on a circulation mode where target water circulates between the target water storage tank 10 and the first filtration measurement means 40, and closing the first valve 60 and closing the second valve 80 turns on a drinking water take-out mode where drinking water is taken out from the drinking water take-out means 100.SELECTED DRAWING: Figure 1

This application discloses a particulate matter removal device for aquaculture water, including a water container, a water injection pipe connected to the water container, a rotating drum, a rotating drum drive device, a first mounting frame, a second mounting frame, an air inlet pipe, a first blower, a water extraction pipe, a water pump, a first blowing hood, a first suction hood, a first negative pressure suction unit, and a first support frame connecting the first suction hood and the water container. This water particulate matter removal device uses an external water inlet and internal outlet water flow method. Impurities in the water adhere to the outer surface of the rotating drum, making impurity removal easier. Both blowing and scraping methods can be used for cleaning, thus more thoroughly removing impurities from the outer surface of the rotating drum. A lifting seat can be used for deep cleaning of the movable plate, effectively increasing the cleaning depth and range, ensuring that impurities on the outer surface of the rotating drum are completely removed, and guaranteeing the long-term stable and efficient operation of the water particulate matter removal device.

The invention discloses a whole watershed rain disaster prevention system, which belongs to the field of water conservancy disaster prevention and relief, and can select a water retaining structure authorized by an applicant or other suitable water retaining structures as a basis, match with an existing modular plug-in type water retaining plate, depend on original water conservancy facilities such as river channels, trunk canals and branch canals, and fuse big data, communication and automation technologies. A three-level disaster prevention system of a water retaining device, a drainage basin stagnation point and a water regime monitoring and processing center is constructed, and an inside-city disaster prevention subsystem and an outside-city disaster prevention subsystem are arranged. A three-layer drainage system of canopy rain shielding and water guiding, water retaining device canal forming and sewer pump station water pumping is constructed in a city, water retaining devices are arranged in a smooth zone in advance according to flood control standards and topographic contour lines outside the city, a stepped water storage area is formed, and the drainage link is divided into three-level drainage networks of rivers, main canals and branch canals. According to the system, the water regimen monitoring and processing center is used for realizing all-basin collaborative scheduling and is deeply bound with four pre-mechanisms of a weather bureau and an emergency management bureau, so that the management method is technologically integrated; the water retaining device can be quickly laid and detached without residues, and the modularized water retaining plate can be pulled out to adjust the water storage amount and is connected with the flexible water retaining device. The system is low in cost and fast in deployment, replaces traditional sandbag layout, can greatly improve efficiency, can form million-magnitude water storage and drainage units in a short time, has emergency guarantee for extreme working conditions, has ecological and economic values, can effectively cope with drainage basin heavy rain and rainstorm disasters, reduces loss to the maximum extent, and has wide popularization and application values.

This invention discloses a method for extracting eutrophic water bodies based on Landsat 8, comprising the following steps: using a water body as the research object, acquiring data sources within the research area; data preprocessing; determining the eutrophication level of Landsat 8 at different times using validation data (MODIS data); water body extraction and accuracy verification; calculating the Landsat 8 data from different times according to the water body indices MANDWI and ANDWI, respectively, and obtaining the water body extraction results using the Otsu method; through result comparison and random point accuracy verification, the results show that MANDWI has a good water body extraction effect for water bodies with different eutrophication levels. The modified enhanced normalized difference water body index MANDWI of this invention has a good clear water extraction effect and can extract eutrophic water bodies; achieving high-precision water body extraction and expanding the application of remote sensing data in shoreline extraction and water body identification.

The utility model discloses a cleanable kitchen waste oil-water extraction device in the field of kitchen waste treatment, which comprises a horizontally arranged separation cylinder, a rotating shaft is rotatably arranged in the separation cylinder along the length direction, a spiral blade is arranged on the periphery of the rotating shaft, a feed port is arranged on the upper side of one end of the separation cylinder, and a discharge port is arranged on the other end of the separation cylinder. A material outlet is formed in the lower side of the other end of the separation barrel, a plurality of separation holes are formed in the lower side of the separation barrel, the separation holes and the material outlet are staggered, extraction tank bodies corresponding to the separation holes are formed below the separation barrel, cleaning shafts are rotatably arranged in the extraction tank bodies, and spiral stirring blades are arranged on the peripheries of the cleaning shafts. A discharge port is formed in the lower side of the extraction tank body, and at least two cleaning nozzles extending into the extraction tank body are arranged on each of the front side wall and the rear side wall of the extraction tank body. The oil-water collecting tank can be used for cleaning the interior of the oil-water collecting tank, so that the cleanliness in the tank is improved, and the oil-water extraction purity is improved.

The hydraulic uranium in-situ leaching well leaching solution multi-stage piston extraction method is applied to a hydraulic uranium in-situ leaching well leaching solution multi-stage piston extraction system; the hydraulic uranium in-situ leaching well leaching solution multi-stage piston extraction system comprises an extraction mechanism, a cable-pipe composite, a steel cable fixing frame, a winch, a water pump, a liquid storage pool and a hydraulic station. The method steps are as follows: S01, connecting and lowering the extraction mechanism; S02, pipeline connection and steel cable fixation; S03, extracting the in-situ leaching solution in the uranium in-situ leaching well. The present application is used for extracting the in-situ leaching solution under the deep water of the uranium in-situ leaching well, can meet the requirement of 6-10 m 3 / h of the liquid extraction flow, and has the advantages of large liquid extraction flow, relatively low power consumption and relatively low cost compared with the traditional deep water submersible pump when the water extraction depth is below 250 m.

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.

A fully automatic layer water extraction device for a reservoir, characterized in that it consists of a floating chamber gate opening and closing system, a water extraction branch line, an inlet pipe, an outlet pipe, and an outlet operating shut-off valve, that each layer extraction point is equipped with a specific floating chamber gate opening and closing system, the floating chamber gate opening and closing system consists of a floating chamber guide column and a floating chamber gate connecting rod, a limiting pin for sliding a floating chamber up and down along the column is provided at an upper end of the floating chamber guide column, the floating chamber gate connecting rod is connected to the floating chamber at an upper end and to a gate at a lower end to form an opening and closing system that can operate independently, the gate located at an outlet end,The outlet operating shut-off valve controls the opening and closing of the reservoir's water supply.

This invention discloses a structure and method for medium-deep geothermal extraction, relating to the field of geothermal extraction technology. It includes an injection well, a production well, and a heat exchange well located in the same site. Both the injection and production wells comprise a first vertical section, a first inclined section, a first inclined section, a second inclined section, and a second vertical section, sequentially arranged from the surface into the depth of the strata. The heat exchange well includes a vertical section, an inclined section, a first horizontal well branch, and a second horizontal well branch. The vertical section extends from the surface into the depth of the strata. The inclined section is located at the bottom of the heat exchange well. The first ends of both the first and second horizontal well branches are connected to the inclined section. The first horizontal well branch is connected to the second vertical section of the injection well, and the second end of the second horizontal well branch is connected to the second vertical section of the production well. The inclined section can be sealed. This invention enables heat exchange without water extraction, requires less surface construction space, and has high applicability.

The present application relates to a kind of methods for treating alkaline mine water using carbon dioxide storage goaf, which uses the property that alkaline water can react with carbon dioxide to achieve the purpose of purifying waste alkaline mine water.In underground coal mine, strip filling goaf is set up, water tank is dug on the ground of strip filling goaf, and water pump and carbon dioxide gas delivery pipe are installed in strip filling goaf to ensure the injection of carbon dioxide gas from the surface into goaf and the injection and extraction of mine water.By means of water injection pump, waste alkaline mine water is injected into carbon dioxide storage goaf, and after the alkaline mine water in carbon dioxide storage goaf reaches the preset time, the neutralized mine water is pumped out by water extraction pump, realizing acid-base neutralization and reuse of alkaline mine water.

The invention discloses a deep energy-saving and emission-reducing device and method for high-concentration ammonia-nitrogen wastewater. Comprising a CXM-PM membrane filter, an intermediate tank, a deacidification device, a tar precipitation tank, an extraction reaction tank, an ammonia resolver, an MVR compressor, a first reboiler, a second reboiler, a degassing membrane, a reflux tank, an extraction agent regeneration tank, a deacidification device feeding pump, an ammonia resolver feeding pump and an ammonia resolver reflux pump. The inlet end of the CXM-PM membrane filter is provided with ammonia-nitrogen wastewater containing impurities such as tar from the outside, and the filtered filtrate is connected into the intermediate tank. By arranging the ammonia-nitrogen wastewater oil removal system, the ammonia-nitrogen wastewater extraction system, the deep energy-saving system and the product ammonia water extraction system, the problem of impurities in the ammonia-nitrogen wastewater is solved; the problem of high energy consumption of ammonia-nitrogen wastewater distillation is solved; phenol, sulfate and ammonium chloride in the ammonia-nitrogen wastewater are extracted through an extraction method, and the problem that the consumption of liquid caustic soda is large is solved; the problem that qualified products cannot be extracted in the conventional ammonia-nitrogen wastewater distillation process is solved.

This utility model relates to the technical field of water generators, specifically disclosing a rotary air-to-water generator, including a body and a dehumidifying rotor. The body contains independent moisture absorption channels and cooling / heating channels. The dehumidifying rotor is rotatably mounted within the body. A first partition and a second partition are respectively installed at both ends of the dehumidifying rotor. The first and second partitions are respectively provided with a dehumidification area and a regeneration area connected to the dehumidifying rotor. The dehumidification area is located within the moisture absorption channel, allowing the dehumidifying rotor to absorb moisture from the air within this area. The regeneration area is located within the cooling / heating channel, allowing the moisture adsorbed by the dehumidifying rotor to be heated and desorbed in the regeneration area and condensed into water through cooling. A water storage chamber connected to the cooling / heating channels is provided at the lower inner end of the body. This rotary air-to-water generator can improve water extraction efficiency and has higher environmental adaptability.

The invention provides an automatic flood monitoring method and system based on SAR (Synthetic Aperture Radar) data. The method comprises the following steps: calculating a basic SAR membership degree according to dual-polarization SAR data by utilizing fuzzy logic; calculating a radar reflection property membership degree according to the ground feature classification result and the monitored SAR decibel value change data by using fuzzy logic, and calculating a hydraulic membership degree according to the hydrological parameters by using the fuzzy logic; defuzzification is carried out on the basic SAR membership degree, the radar reflection property membership degree and the hydraulics membership degree by using a product method, the probability that each pixel is a water body is determined, and a water body probability graph is generated; and predicting a water body range based on the water body probability graph. According to the automatic flood monitoring method and system based on SAR data provided by the invention, the influence of ground objects such as vegetation and buildings on water body extraction is solved, and the interference of other ground objects (such as roofs, playgrounds and roads) with relatively low reflectivity on a water body recognition result is reduced.

This utility model discloses a downhole water extraction device for engineering exploration drilling, relating to the field of exploration drilling technology. It includes two fixed plates and support columns fixedly connected to the bottom ends of the two fixed plates, a drilling unit disposed between the two fixed plates, and a water extraction unit disposed at the top of the fixed plates. The drilling unit includes a connecting plate fixedly connected between the two fixed plates, a propulsion assembly opened on one side of one of the connecting plates, and drilling components disposed above and below the propulsion assembly. The water extraction unit includes support rods fixedly connected to the top ends of the two fixed plates, a horizontal plate fixedly connected to the top ends of the two support rods, two third cylinders disposed at the top end of the horizontal plate, and a water extraction component disposed at the bottom end of the third cylinders. This utility model is a downhole water extraction device for engineering exploration drilling, which improves the descent stability of the rotating motor and drill bit, further improving the stability of the drilling, and allows for convenient replacement of the water collection cup.

The invention discloses an absorption tower system with a double-effect flow control device, and relates to the technical field of flue gas treatment. The device comprises an absorption tower, a double-effect flow control device, a water collection tank and a limestone slurry supply system, a slurry tank, a porous distributor, a first-stage spraying layer, a second-stage spraying layer and a demister are sequentially arranged in the absorption tower from bottom to top; the double-effect flow control blade comprises a first blade, a second blade and a rotating shaft; the water collecting tank is connected with the liquid collecting tank; and the limestone slurry supply system is respectively connected with the slurry tank and an inlet pipeline of the secondary circulating pump. The absorption tower with the double-effect flow control device is simple in structure, convenient to install and low in requirement for the height space in the tower, the absorption tower with the double-effect flow control device integrates four operation modes for projects with extra requirements for flue gas water lifting, the newly-added investment cost is far lower than the cost of a newly-built condensing tower, and the problems of repeated investment and the like caused by superposition of a plurality of independent systems are solved. The invention also relates to an operation method of the absorption tower system with the double-effect flow control device.