679 results about "Water sampling" patented technology

The invention discloses a method for completing an autonomous deep-sea exploration task by a deep-sea cross-domain unmanned aerial vehicle. The method comprises the following steps: determining a target area; taking off to a specified height from the sea level, receiving a task execution command and then flying to a target area; when the relative distance between the current position and the coordinates of the target area reaches a preset value, descending; when it is detected that the device is contacted with seawater, the device dives through gravity; when it is detected that the set depth is reached, the propeller is restarted, and the detection task is executed; after the detection task is completed, the standby battery is rejected and ascends; after leaving the water surface, rising to a specified height and switching to a homeward flight mode; and when the deep-sea cross-domain unmanned aerial vehicle is within the sight distance range, a manual landing task is executed. The invention further discloses the deep-sea cross-domain unmanned aerial vehicle. According to the unmanned aerial vehicle and the method, autonomous switching operation between an air medium and an underwater medium can be realized, and the unmanned aerial vehicle has the capability of autonomously completing detection and water body sampling in an extreme deep sea environment.

The invention provides a rainfall sampler for meteorological monitoring, and relates to the technical field of water sampling, the rainfall sampler comprises a placing box, and a water quality collecting mechanism is arranged in the placing box; the water collecting mechanism comprises a shaft rod, a circular plate, a turntable, an up-down moving part and an annular concave-convex plate; the shaft rod is connected into the containing box, the circular plate is connected with the shaft rod in the containing box, a gear disc is arranged on the shaft rod, arc-shaped grooves are formed in the gear disc and the circular plate, the rotating disc is in threaded connection with the shaft rod, the up-down moving part is slidably connected to the rotating disc and is opposite to the arc-shaped grooves, the annular concave-convex plate is fixedly connected into the containing box, and the up-down moving part annularly rotates on the annular concave-convex plate. The inner top wall of the placing box is communicated with an elastic plugging pipe mechanism, under the assistance of an annular concave-convex plate, up-down moving pieces are inserted into arc-shaped grooves in a circular plate and a gear disc at intervals to control the circular plate to rotate and ascend, when the circular plate rotates, respective sampling of a plurality of sampling bottles is achieved, and when the circular plate ascends, water overflow is avoided under the assistance of the elastic plugging pipe mechanism.

The invention discloses an unmanned aerial vehicle water body fixed-point sampling device, which relates to the technical field of water sampling, and comprises an unmanned aerial vehicle body and a telescopic rod arranged below the unmanned aerial vehicle body, the airflow collecting mechanism is arranged outside the telescopic rod and can be automatically unfolded or folded according to lifting of the unmanned aerial vehicle body; the air collecting disc is located below the telescopic rod and used for collecting airflow; the airflow guiding mechanism is arranged at the bottom of the air collecting disc and used for circularly supplying air to the water surface from inside to outside; a sampling pipe capable of automatically rotating and moving downwards according to lifting of the unmanned aerial vehicle body and a spiral probe installed at the bottom of the sampling pipe and capable of synchronously rotating with the sampling pipe and moving downwards are arranged in the wind collecting disc, and wind power of the airflow guiding mechanism drives the water surface to regularly diffuse water ripples outwards, so that duckweeds are made to be away from a sampling center along with the ripples; water surface fluctuation is reduced, it is ensured that the water sample is not interfered by underwater sediment, and interference of underwater obstacles is further avoided through cooperation with the spiral probe which automatically rotates and moves downwards.

The invention relates to the technical field of water treatment sampling, in particular to a convenient storable water body sampling device which comprises a sampling barrel, the length of the sampling barrel is adjustable, a plurality of longitudinally-arranged sampling holes are formed in the sampling barrel, and one-way assemblies which are in one-way communication with an inner cavity of the sampling barrel are arranged in the sampling holes; the sampling mechanism comprises a plurality of detachably connected sample storage barrels, and the sample storage barrels are longitudinally and movably arranged in an inner cavity of the sampling barrel; the sampling hole and the sample storage barrel are correspondingly arranged and are detachably communicated, and an external water sample enters the sample storage barrel from the sampling hole during sampling; the top seat is arranged at the top end of the sampling barrel, a driving assembly is arranged on the top seat, and the driving assembly is in transmission connection with the longitudinally-arranged sample storage barrel and used for controlling the sampling process of the sample storage barrel. The device is compact in mechanism and convenient to use, and the length-adjustable sampling barrel can adapt to sampling in water environments of different depths; the one-way assembly prevents the water sample from flowing back and ensures the sampling accuracy; and the detachably connected sample storage barrel is convenient for storage and subsequent analysis of the sample.

The invention discloses a water quality detection sampling device, and particularly relates to the technical field of water sampling, the water quality detection sampling device comprises a center shaft and a shell arranged on the outer surface of the center shaft, water inlet structures used for taking water are arranged on the lower portion of the inner surface of the shell in a bilateral symmetry mode, a sampling structure is arranged in an inner cavity of the center shaft, and a second sliding groove is formed in the upper end of the center shaft; a quick-connecting structure is arranged on the inner surface of the second sliding groove, a connecting groove matched with the quick-connecting structure is formed in the lower end of the center shaft, and guide rails in sliding connection with the shell are symmetrically arranged on the outer surface of the center shaft front and back. Through cooperation of the quick connection structure and the connection groove, the center shaft is quickly disassembled and assembled, and it is guaranteed that the shell smoothly moves along the guide rail; an air tap in the sampling structure pumps negative pressure to enable a water sample to automatically enter a sample storage cavity, a connecting assembly is movably matched with an L-shaped rod and a notch to open a turning plate, an arc-shaped elastic piece assisting component resets to close a channel, it is guaranteed that the sampling time is accurate, the water sample is free of impurities, and the water quality detection efficiency and accuracy are remarkably improved.

The invention discloses a lake self-settling layered water sampling device and method, and belongs to the technical field of water quality monitoring. The device comprises a bearing table floating on the water surface, a main control box is arranged in the middle of the bearing table, the bottom of the main control box is connected with a rope-controlled lifting assembly, and the rope-controlled lifting assembly is connected with a self-settling water sampling assembly through a pull rope; the rope-controlled lifting assembly comprises an adjustable-speed motor, a rope winding roller and a depth detection unit, the self-settling water sampling assembly comprises a multi-cavity water sampling barrel and a counterweight cabin, and the main control module coordinates all the assemblies to realize stratified sampling. The invention further discloses a lake self-settling layering water sampling method. The device can accurately obtain water samples in different depths of lakes, and is suitable for scenes of lake ecological monitoring, water quality analysis and the like.

The invention discloses an underground water sampling device capable of preventing cross contamination. The underground water sampling device comprises a cable type lifting machine; the wire wheel seat is driven by a cable type lifting machine to move up and down, and a carrying table is fixed at the bottom of the wire wheel seat; the motor is fixed on the top surface of the carrying table; and the stratified sampling mechanism is fixed on the bottom surface of the carrying table, is driven by a motor, and can perform synchronous sampling operation on a plurality of sections of underground water. According to the device, through layered synchronous sampling, dynamic sealing control and modular residue prevention design, the goals of high fidelity and low pollution of underground water sampling are achieved, and the device is particularly suitable for application scenes such as deeper underground water monitoring sites and the like which have strict requirements on data precision.

The invention provides a water bloom prediction method and system based on ecological niche fitness, and belongs to the technical field of water bloom prediction. In the training stage, a water sample collection method based on high time resolution is adopted, the fluctuation condition of the density of different types of algae along with time can be effectively reflected, the growth trend of the different types of algae can be more clearly reflected, and the prediction precision of the model is improved; in the prediction stage, the ecological niche fitness of competitive growth of different algae is quantitatively analyzed through a multi-fractal detrending coupling fluctuation analysis method, and the competitive growth relation of different types of algae under natural conditions is reflected; water quality data monitored by an automatic monitoring station in real time and ecological niche fitness of competitive growth of different algae are used as input, the concentration of key dominant algae can be predicted in real time, the spatial-temporal heterogeneity and the rapid dynamic change process of the algae are reflected, and an effective theoretical support is provided for early warning of algal bloom outbreak.

The invention relates to the technical field of intelligent monitoring, and discloses a full-automatic sediment monitoring method and system.The method comprises the steps that a water sampling and distributing unit samples a target water area based on real-time sampling control parameters and conveys a sampled first water sample to a flow cell unit based on sampling control parameters; the flow cell unit simulates and forms a water sample monitoring water area environment matched with the target water area condition; the detection unit detects the water sample in the flow cell unit through a target detection method based on the detection control parameters to obtain a sediment detection result at least containing the sediment content; the reserved sample unit is used for extracting a reserved sample water sample for verifying the sediment detection result from the flow cell unit based on the reserved sample control parameters, and storing the reserved sample water sample and corresponding multi-dimensional water sample parameters. Therefore, the sediment condition of the related water area can be automatically and intelligently tested based on the full-automatic sediment monitoring system, and the testing efficiency and testing accuracy of the sediment condition can be improved.

The utility model is applicable to the technical field of environmental protection and hydraulic engineering, and provides an automatic water quality sampler which comprises a sampling cylinder, a cavity is formed in the sampling cylinder, opposite through openings are formed in the top end and the bottom end of the sampling cylinder, and electromagnetic valves are arranged at the two opposite openings; the upper electromagnetic valve and the lower electromagnetic valve are arranged at the upper opening and the lower opening of the sampling cylinder, after sampling at the specified depth, the upper opening and the lower opening of the sampling cylinder are directly closed through the electromagnetic valves, and the situation that the actual depth of a sampled sample is affected due to the fact that the valves are opened due to possible secondary lowering action in the sampling process is avoided; the pressure sensor is arranged on the sampling cylinder, so that the water depth of the sampler can be detected in real time, the depth can be recorded as required, and the water depth can be measured while a water sample is collected; water sampling at a specified depth can be realized through a preset depth value, when the pressure sensor detects that the specified depth is reached, the electromagnetic valve is automatically controlled to be closed, and then water sampling at the specified depth is completed.

A water quality simulation method for plant-network-river integrated water supply, comprising steps such as river channel water source simulation, dynamic analysis of the quality of water from a water sampling point, construction of a model for predicting the quality of water in a water supply pipe network, data interface development, one-dimensional simulation of hydrodynamics and water quality in a pipe network, and integrated model integration and automation. In the method, open-source software OpenFOAM and EPANET-MSX can be used to achieve continuous simulation and real-time update of water quality and hydrodynamic parameters from a river channel to a water supply pipe network by means of an automated script and data interface. The model integrates the treatment effects of water quality purification plants, and the water quality purification plants are simplified into processing nodes on a pipeline system, thereby ensuring the authenticity and accuracy of simulation results. The present method is easy to operate and implement, and allows for automatic generation of a water quality parameter time-series plot, thereby greatly improving simulation efficiency. Water supply enterprises and water conservancy departments can use the method to establish a water supply quality information management system, perform long-time series prediction, optimize daily management and maintenance, and formulate water quality safety guarantee measures, and the method has significant practical value and wide application prospects.

The application provides a wastewater sampling device for water pollution detection and a sampling method in the technical field of environmental monitoring. The wastewater sampling device comprises a support table, a rotating sleeve is rotatably installed on the support table, a conical bottom cylinder is penetratingly and slidably installed in the rotating sleeve, a plurality of ice-breaking tooth plates are symmetrically distributed and welded at the bottom end position of the conical bottom cylinder, a first gear is fixedly sleeved on the outer wall of the rotating sleeve, a first motor is fixedly installed on the top of the support table, a second gear is fixedly sleeved on the output end of the first motor, and the first gear is engaged with the second gear. The wastewater sampling device for water pollution detection has the advantages of automatic ice-breaking function, water collection in the water area with ice, multi-dimensional visual signal prompting, and the like, so that the operator can timely judge whether the water tank is full.

The present invention discloses a stratified water sampling device for water quality testing, which belongs to the field of environmental monitoring and includes a mother chamber and a sampling device. The mother chamber includes an installation chamber and a pressure chamber. The installation chamber is arranged on the top of the pressure chamber, and the top of the installation chamber is open. The sampling device is arranged in the installation chamber. The sampling device includes a collecting bottle and an opening and closing mechanism, and the opening and closing mechanism is slidably arranged in the collecting bottle. The present invention can more accurately perform fixed-depth stratified sampling of water bodies, and can cope with various water body conditions by adjusting the water pressure. According to needs, multiple devices of the present invention can be bundled and centrally released through external equipment. A single release can complete the sampling of multi-layer water bodies, which is more efficient. In addition, the split design of the collecting bottle makes it easier to take and transport after sampling is completed.

The invention relates to a water quality emergency scheduling method based on multi-platform linkage, and the method comprises the steps: enabling an emergency monitoring vehicle to drive to a preset emergency response point along the bank of a water area after a satellite remote sensing system captures a water quality abnormal signal; an unmanned aerial vehicle carrying a hyperspectral lens flies to an abnormal water area according to a planned route to collect spectral data, and an abnormal range is interpreted and narrowed to a worst pollution area in real time through a data processing server; then, the unmanned ship goes to the area according to a planned route to monitor water quality parameters in real time, the data processing server determines an optimal water sampling point, and the unmanned ship automatically completes water sampling; finally, the data processing server generates a water quality report and reports the report to a command center, and the command center starts an emergency disposal scheme.

The invention belongs to the technical field of water sampling, and particularly relates to an underwater in-situ fidelity sampler and method.The sampler comprises a sealed cabin, a multi-way valve, a water taking assembly, a storage assembly and a control unit are arranged in the sealed cabin, the water taking assembly is connected with the common end of the multi-way valve, and a first connector of the multi-way valve is communicated with an external water area of the sealed cabin; each second connector of the multi-way valve is connected with one storage assembly. The water taking assembly, the multi-way valve and the storage assembly are all in signal connection with the control unit. And the multi-way valve acts, so that the water taking assembly, the multi-way valve and the storage assembly are in a first connection state or a second connection state. When water is taken at different points, the multi-way valve is controlled to rotate to different second connectors, samples collected at different points are stored in different storage assemblies, in-situ water taking at different underwater points is achieved, and it is guaranteed that all the points are independent of one another and free of interference and pollution.

The invention discloses fixed-point sampling equipment for underground water. The fixed-point sampling equipment comprises an equipment bracket, a control and display unit and an integrated underground detection assembly, the assembly integrates a sampling execution part, a visual positioning part and a lifting cleaning part, wherein the sampling execution part is a polytetrafluoroethylene Beller tube; the visual positioning part enables the optical axis of a lens of the waterproof camera and the axis of the Beller tube to be fixed in parallel through a rigid mounting bracket; the lifting cleaning part adopts an automatic telescopic cleaning line with a built-in cleaning flow channel, and a driving mechanism of the lifting cleaning part adopts non-lubrication magnetic coupling transmission. The control and display unit controls the lowering stroke of the cleaning line based on a picture returned by the camera, and accurate positioning sampling is achieved. Visual accurate sampling is achieved through rigid connection and synchronous lowering, and traditional blind sampling errors are overcome; and pollution-free materials, automatic cleaning and data integration functions are combined, so that pollution is avoided from the source, data integrity and traceability are guaranteed, and the normalization, accuracy and efficiency of underground water sampling are remarkably improved.

The invention relates to the technical field of underground water sampling, and discloses an underground water sampling device which comprises a frame body and further comprises a sampling cylinder, a sampling winding drum and a cleaning winding drum, the sampling winding drum and the cleaning winding drum are rotationally connected to the frame body, a sampling cavity is formed in the sampling winding drum, a sampling hose is communicated to the sampling cavity, and a first detection sensor group is mounted on the sampling cylinder; a lower valve cylinder driven by a motor a is rotatably mounted on the inner wall of the sampling cylinder, a lower valve hole is formed in the lower valve cylinder, the sampling end of the sampling hose and the lower valve hole are both communicated with an inner cavity of the lower valve cylinder, an upper branch pipe adaptively communicated with the lower valve hole is arranged on the side surface of the sampling cylinder, and a rotary sampling head is arranged at the lower part of the sampling cylinder; and a rotary flow guide component is arranged between the rotary sampling head and the upper branch pipe. By integrating the high-pressure air pump, the cleaning pump and the sewage suction pump and combining intelligent switching control of the three-way connector and the electromagnetic valve, automatic backwashing of the sampling hose, the rotary sampling head and the flow channel is achieved.

The present invention relates to the technical field of environmental monitoring, and specifically discloses a water sample sampling device for environmental monitoring, comprising: a frame; and also comprising: a winding mechanism, which is arranged on the frame and is used for winding and releasing for use. The present invention has at least the following beneficial effects: by arranging the winding mechanism, the spacing mechanism and the sampling mechanism, the sampling mechanism can be placed into the water body according to the needs of use when performing water sample sampling work, and when the sampling mechanism is placed in the water, the spacing mechanism can be used to proportionally set the depth of the sampling mechanism entering the water body, and then after the sampling mechanism is moved to the bottom of the water, the spacing mechanism can be used to adaptively adjust water samples of equal distances and different depths according to the sampling mechanism sinking to the bottom of the water at different depths, thereby reducing the workload of the staff and shortening the working time, so that after the sampling mechanism is placed into the water body once, water samples of different water depths can be sampled to complete the sampling work.

The utility model discloses a drinking water source deep water sampling device, which belongs to the technical field of water sampling, and comprises a floating ring, a sampling assembly and a pull rope, the floating ring floats on the water surface, the sampling assembly is hung into the water by using the pull rope, and the sampling assembly is fixed on the floating ring. The density of the outer sleeve is smaller than the average density of the sampling barrel provided with the balancing weight, the falling speed of the sampling barrel is larger than that of the outer sleeve, the first water inlet and the second water inlet in the sampling barrel can be exposed, and water can be continuously poured in from the first water inlet and flow out from the second water inlet in the falling process of the sampling assembly. When the sampling assembly is pulled upwards through the pull rope, the sampling barrel moves upwards firstly, when the top of the sampling barrel abuts against the top of the inner side of the outer sleeve, the whole sampling assembly is pulled upwards, meanwhile, sealing is conducted through the first sealing ring and the second sealing ring, and no water enters the sampling assembly in the rising process; therefore, sampling can be completed through cooperation of the outer sleeve and the sampling barrel.

The utility model discloses a water sampler device with strong leakproofness, which relates to the technical field of sampling devices and comprises a barrel body, a cover sealing device is arranged on the barrel body, a sealing device is arranged on the barrel body and used for movably plugging an opening in the bottom of the barrel body, and the sealing device comprises a sliding rod movably penetrating through the barrel body. The top of the sliding rod is provided with a balancing weight used for balancing the weight of the sliding rod, the bottom of the sliding rod is provided with a baffle used for movably blocking an opening in the bottom of the barrel body, the baffle is provided with a rubber pad used for movably making contact with the bottom of the barrel body, and the top of the sliding rod is provided with a pull rope used for assisting in lifting the sliding rod. The cover sealing device is used for overturning and sealing an opening in the top of the barrel body, the cover sealing device comprises a hinge arranged at the top of the barrel body, and the hinge is connected with a cover plate used for overturning and sealing the opening in the top of the barrel body, so that water can be stably collected, the water leakage condition is avoided, and liquid can be conveniently poured.

The invention discloses a buoy-type water quality monitoring device and a use method, and relates to the technical field of water quality monitoring, the buoy-type water quality monitoring device comprises a circular plate arranged below a buoy cylinder, and a water drawing cylinder for drawing water at multiple depths is arranged at the bottom of the circular plate; a second side groove is formed in the middle section of the side wall of the water drawing barrel, a filter screen is arranged in the second side groove and divides the interior of the second side groove into a movable gap and a containing gap, and the movable gap is close to the axis of the water drawing barrel; a treatment part is arranged outside the water drawing cylinder in a sliding manner, and a first side groove is formed in the treatment part; when being put into a water body, the treatment piece covers the second side groove, and the water drawing barrel is closed to reach a sampling position. According to the float-type water quality monitoring device, by arranging the water drawing cylinder, the treatment part, the partition assembly and other structures, a surrounding and shielding area is formed to quickly absorb and remove particle impurities in the containing gap, the particle impurities are prevented from entering the containing gap again, impurity treatment and water drawing sampling can be matched in real time and do not affect each other, and the detection accuracy is improved. The use efficiency of the float type water quality monitoring device is improved.

The invention relates to the field of environmental monitoring, and discloses a water taking and sampling device for an underground water monitoring well, which comprises a sampling pump for extracting a water sample in the underground water monitoring well, a sampling pipe arranged at the upper end of the sampling pump and used for outputting the water sample, and a winding unit arranged at the upper end of the sampling pump and used for winding the sampling pipe. The adjusting device is used for adjusting the position of the sampling pump in the underground water monitoring well; the supporting unit is detachably fixed to the upper end of the underground water monitoring well and used for supporting the winding unit; the protection unit sleeves the sampling pump, is adjustably supported between the sampling pump and the inner wall of the underground water monitoring well, and is used for protecting the sampling pump when the winding unit drives the sampling pump to move downwards in the underground water monitoring well; through the arrangement of the protection unit, the sampling pump is effectively prevented from colliding with the well wall in the downward moving process, the sampling equipment is protected, and the service life of the equipment is prolonged.

The invention discloses a training system and method of a semi-supervised machine learning model for water pollutant detection, and relates to the field of environment detection. The problem that an existing semi-supervised machine learning model is insufficient in universality is solved. The system comprises a water body sampling module used for collecting a water body sample of a monitoring area; the pollutant adding module is used for adding pollutants to the water body sample according to randomly obtained pollutant types and concentration settings of different combinations to obtain the water body sample, and sending the water body sample to the data sampling module; the data sampling module is used for collecting physicochemical properties of the water body samples of the water body sampling module and the pollutant adding module through a sensor; and the data analysis module is used for inputting the physicochemical property data of the water body sample acquired by the water body sampling module into a semi-supervised machine learning model, and constructing and training the semi-supervised machine learning model by taking the physicochemical property data as input. The method is also suitable for the field of real-time training and detection of water pollutants.

The invention provides a water sample collecting device for mineral water resource exploration, and relates to the technical field of water sampling, the water sample collecting device comprises a cylinder, a floating seat and a water taking mechanism, one end of the cylinder is opened, the other end of the cylinder is sealed, and a plurality of water inlet pipes are circumferentially arranged at the bottom of the cylinder; the water inlet pipe comprises a horizontal section positioned outside the cylinder body and an arc-shaped section positioned inside the cylinder body; the floating seat is arranged outside the barrel in a sleeving manner and can float on the water surface, and a positioning piece used for fixing the position of the barrel is arranged on the floating seat; the water taking mechanism comprises a mounting ring and a driving assembly, a plurality of collecting barrels are distributed on the mounting ring in the circumferential direction, and the driving assembly is used for driving the mounting ring to slide to the specified depth in the barrel body in the length direction of the barrel body and driving the mounting ring to rotate at the specified depth so that the collecting barrels can move to the position under the water inlet pipe in a one-to-one correspondence mode; according to the water sampling device, water samples at different depths can be conveniently collected, and the collected water samples can be taken out without integrally moving the device out of a water body, so that the next sampling is facilitated.

The utility model discloses a water body sampling device for water affairs, which comprises a base, the upper end of the base is connected with a supporting assembly, the exterior of the supporting assembly is connected with a drying assembly, the exterior of the drying assembly is connected with a winding and unwinding assembly, and the lower end of the winding and unwinding assembly is connected with a sampling assembly. By arranging the drying assembly and the temperature controller to control on-off and temperature of the heating resistance coil, the heating resistance coil can be heated after being powered on, then the damp connecting belt can be heated and dried, and the situation that the service life of the connecting belt is affected due to long-time water erosion is prevented. The problems that in the prior art, a rope is wound up, the rope is difficult to dry in time after being affected with damp, the rope may be eroded by water for a long time, the service life of the device is easily influenced, and the depth of a sampled water body is difficult to know and the sampling accuracy is easily influenced during sampling in the prior art are solved.

The invention discloses an intelligent depth-adjustable sampling device for underground water pollution detection, and relates to the technical field of underground water sampling, the intelligent depth-adjustable sampling device comprises a sampling equipment main body and a controller, the bottom of the sampling equipment main body is provided with a driving device, and a supporting table is mounted above the sampling equipment main body; the device comprises a supporting table, a machine shell and a winding assembly are installed on the supporting table, a lifting device is installed at the output end of the supporting table, a drilling assembly and a sampling assembly are installed on the lifting device, a cooling assembly is arranged on the side face of the drilling assembly, and the winding assembly is matched with the sampling assembly. According to the invention, integrated intelligent operation of drilling, depth adjustment, sampling and preliminary detection is realized, and the efficiency and accuracy of underground water pollution detection sampling are significantly improved.

The present invention relates to the technical field of steam sampling equipment, specifically an intelligent boiler steam-water sampling device, including a condensing mechanism, the condensing mechanism including a vent pipe, one end of the vent pipe is connected to the boiler, the end of the vent pipe away from the boiler is fixedly connected to the condenser pipe, a spring circulation pipe is nested outside the condenser pipe, one end of the spring circulation pipe is connected to the upper end of the condenser pipe through a water inlet, and the other end of the spring circulation pipe extends to the lower end of the condenser pipe and is fixedly connected to an external water pipe; the present invention realizes automatic steam collection and cleaning by driving a turntable and a condensing device to work together through a motor. The cooling water temperature gradient is used to avoid premature liquefaction of steam and improve collection efficiency; the automatic cleaning function prevents residual contamination and ensures sample accuracy. The device has good sealing performance, high sampling efficiency, recycling of cooling water, and energy saving and environmental protection.

The invention provides a constant-speed sampling system and method for gas-liquid interference suppression and accurate flow regulation and control, and belongs to the technical field of underground mine water sampling. The system comprises a negative pressure sampling module, a gas-liquid separation module, a flow regulation and control module, a pressure compensation unit and a central control unit which are communicated in sequence. Through a three-stage gas-liquid inhibition mechanism, namely self-adaptive negative pressure, structural degassing and ultrasonic bubble breaking, pipeline bubbles are effectively eliminated; the Coriolis mass flow meter and the high-speed proportional valve are adopted to form high-precision closed-loop control, and the pressure compensation unit is combined, so that a compound control system with strong anti-disturbance capability is formed, high-precision pulse-free constant-speed sampling under complex working conditions of underground mine water is realized, and the representativeness of samples and the accuracy of monitoring data are remarkably improved.

The utility model discloses a riverway inspection unmanned aerial vehicle convenient for sewage sampling, and relates to the technical field of sewage sampling, the riverway inspection unmanned aerial vehicle convenient for sewage sampling comprises an unmanned aerial vehicle body mechanism, the bottom end face of the unmanned aerial vehicle body mechanism is provided with a plug column mechanism, the main body of the plug column mechanism is made of a rubber material, and the plug column mechanism is arranged on the bottom end face of the unmanned aerial vehicle body mechanism. The plunger mechanism made of rubber is arranged at the bottom end of the machine body mechanism and matched with the magnetic attraction assembly of an annular electromagnet structure on the outer side, after the sampling barrel completes sampling and rises again, the magnetic attraction assembly is powered on to attract the sampling barrel, the plunger mechanism blocks an opening of the sampling barrel, and a reliable closed structure is formed; according to the unmanned aerial vehicle, the possibility that sewage leaks in the transportation process is greatly reduced, the sampling integrity and accuracy are guaranteed, secondary pollution to the environment is avoided, and stable lifting force is provided for the unmanned aerial vehicle through supporting arm assemblies obliquely arranged at the four corners of the vehicle body mechanism in cooperation with an internal driver and a blade assembly at the top end.

The utility model discloses an underground water sampling device for engineering geological survey, which comprises a main body assembly, a control box, a positioning plate, ground nails, a support frame and a driving box, the support frame is arranged in the control box, and the driving box is fixed at the top of the support frame; the water taking assembly comprises a moving part, a winding part and a sample separating part, the moving part is arranged in the control box, the winding part is arranged in the driving box, and the sample separating part is arranged below the driving box. The underground water sampling device has the beneficial effects that through the matched use of the moving part and the winding part, a worker can conveniently operate and sample underground water at a position far away from a water source sampling point, the worker can be prevented from falling into water accidentally, the safety during water source sampling is improved, and through the arrangement of the sample separating part, the worker can conveniently place the sampler into the underground water, so that the sampling efficiency is improved. Five underground water sources with different depths are sampled at a time, and meanwhile, filter holes are formed in the top of the sample separating barrel, so that weeds or large-particle impurities can be prevented from entering the sample separating barrel.