7230 results about "Water pumping" patented technology

The present invention relates to a several wind mills parallelly-connected type wind energy and optical energy complementary water elevation system. Said system includes the following several portions: wind-driven power generator unit, solar cell component, intelligent controller and submersible pump. The described intelligent controller can be used for controlling, managing and tracking said system.

An induction motor system comprising an induction motor, equipped with a heat recovery and water pumping apparatus and an apparatus for controlling the electrical efficiency and resulting heat generation of the induction motor. The motor is adapted to be coupled to an AC source for supplying an AC signal. The controlling apparatus includes a switching device, user controls and optional inputs. The switching device is connected in series with the motor and is operative in either a high impedance state wherein significant current flow through the motor is prevented or a low impedance state wherein current flow through the motor is substantially undisturbed. The user controls provide motor operational input signals. The optional inputs provide setpoint and sensed water temperature input signals. The controller means receives the motor operational setpoint and sensed water temperature input signals from the user controls and optional inputs, and switches the switching device between its low and high impedance states in a predetermined sequence for inducing a phase delay in the AC signal.

The invention relates to a low-head shaft-extension tubular pump turbine and blades thereof, and belongs to the technical field of energy power. The low-head shaft-extension tubular pump turbine comprises a pump turbine body, a reversible motor, a flow channel and a flow guide mechanism, the flow channel comprises a water inlet section flow channel, a guide blade section flow channel, a runner chamber and an S-shaped exhaust water pipe flow channel which are sequentially communicated, a runner is in transmission connection with the reversible motor through a spindle, the flow guide mechanism is arranged on the other side of the runner, the runner comprises a runner boss and a runner cone, the blades are circumferentially and uniformly arranged on the runner boss, the middle of each blade is thick while two sides of each blade are thin, each blade is in the shape of a three-dimensional warped surface, and spatial characteristics of each blade are indicated by an upper section, a middle section and a lower section. The operation conditions of power generation by a turbine and water pumping by a pump can be simultaneously met and are opposite in water flow direction, namely, the same runner needs to simultaneously meet the double requirements of water pumping and power generation, the efficiency of the two operation conditions can be simultaneously considered, and the low-head shaft-extension tubular pump turbine is applicable to a low-head pumped storage power station.

The invention belongs to the technical field of polluted ground water remediation, and particularly relates to a method and a system by using micro-namo bubbles to perform reinforcement in-situ remediation on polluted ground water. The method comprises the steps of: arranging a water injection well at the upper reaches of a region with ground water polluted by pollutants, and feeding micro-nano bubble water containing nutrient salts; leading the micro-nano bubble water to flow to the polluted region with the ground water, so as to decompose the pollutants or continuously compensate electron acceptors or electron donors for microorganisms and facilitate degradation and removal of organic pollutants; at the same time, arranging a water pumping well to pump water at lower reaches of the polluted region, so as to form a subsurface flow field; and using a monitoring well to monitor and analyze parameters in real time during the process of removing the organic pollutants, and adjusting the generating time and the aeration intensity of the micro-nano bubbles. According to the invention, the micro-nano bubbles are good in oxygen supply effect, long in lasting time and wide in influencing range, the method and the system provided by the invention can make up the shortages of common in-situ remediation technologies such as natural degradation, bioventing and the like and are low in cost and high in energy-saving efficiency, thereby being applicable in remediation for a field with a limit area and a high pollution load.

The invention discloses a method and a device for exploiting natural gas hydrate in a permafrost region. The device comprises a water-pumping depressurization system, an underground in-situ combustion heating system, a gas collection system and a control system. The water pumping depressurization system comprises a water delivery pipe, a deep-well pump and a gas-liquid separator, wherein the deep-well pump is arranged at the bottom of a vertical well; and the gas-liquid separator is connected with the deep-well pump by the water delivery pipe. The underground in-situ combustion heating system comprises an electronic ignition device and an oxygen-containing gas conveying pipe, wherein the electronic ignition device is connected with a ground power supply by a power switch; and the oxygen-containing gas conveying pipe is connected with an external gas supply system and paved from the ground to the electronic ignition device through the vertical well. The gas collection system comprises a gas collection pipe which is arranged at a well head of the vertical well. The control system comprises a pressure sensor, the power switch and a regulation valve, wherein the regulation valve is arranged on the oxygen-containing gas conveying pipe; and the control system controls the aperture of the regulation valve and the on and off of the power switch according to a pressure, which is measured by the pressure sensor, of the vertical well. By the invention, the synchronous continuous exploitation of depressurization and underground in-situ combustion heating can be realized.

The invention provides a reinforcing device for reinforcing a sand foundation through combination of microorganisms with vacuum drainage and a reinforcing method of the reinforcing device. The device comprises grouting pipes, drainage pipes, a grouting well array, a drainage well array, vacuum water pumping equipment and slurry grouting equipment, wherein the grouting pipes and the drainage pipes are laid on a sand surface in parallel in the horizontal direction, the grouting well array and the drainage well array are located in the sand foundation below the grouting pipes and the drainage pipes respectively, the grouting well array comprises at least two grouting wells, and the drainage well array comprises at least two drainage wells. The reinforcing method comprises steps as follows: I, the reinforcing device is mounted; II, a bacterial solution and a consolidation fluid are prepared; III, the bacterial solution is injected; IV, vacuum drainage is preformed; V, the consolidation fluid is injected; the steps IV and V are repeated for 6-7 times. According to the reinforcing device and the reinforcing method, directional horizontal migration of the microorganisms in a soil body is realized through vacuum drainage, and the treatment range is enlarged; plug holes produced in the grouting process are reduced, and the reinforcement uniformity is improved.

The present invention proposes to apply against dangerous natural phenomena (mainly hurricane) relocatable water pump stations using wave energy and having two states: operating state (for cold water pumping) and collapsed state (suitable for transportation). In collapsed state these stations have a severe less cross-section at least in one of horizontal directions. Such stations include reconfiguration means for theirs transforming from one said state to the second state and back.

A hydraulic power generation system employs a plurality of buckets carried by an endless chain to receive water falling from height and drive the chain, which in turn drives a water pumping device to raise water to the height for automatic and continuous generation of power.

The invention discloses a multi-functional underwater operation robot. The multi-functional underwater operation robot comprises a robot main frame, a power system, a detection system, a trash cleaning system and a control system. The robot adopting a crawler belt type propelling mode has higher stability than a wheel type, has strong road holding capability, and realizes in-situ arbitrary steering. The robot body adopting a framework structure is lighter than a traditional metal robot body, has component flexibility, and is easy to improved and low in cost. Compared with traditional water pumping cleaning, the cleaning mode has the characteristics of no water change, high automation degree, high efficiency and power consumption conservation. The multi-functional underwater operation robot can be used for military reconnaissance, underwater monitoring, marine oil pipeline inspection, river-crossing pipeline inspection, ship repair, ship bottom exploration, channel failure removal, port operation, drilling platform underwater structure maintenance, underwater archaeology, underwater sunken ship inspection and the like.

The multifunctional water pumping aerator as one efficient water mixing and aerating apparatus consists of central ascending tube, aerating chamber, air chamber and air releasing pipe. The central ascending tube is one circular tube capable of regulating length automatically based on water level, and its lower part constitutes aerating chamber and air chamber together with a large outside pipe. Via the perforated air releasing pipe installed in the inlet of the aerating chamber, compressed air is filled to the aerating chamber and filled air forms the large rising bubbles in the central ascending tube to drive the upward water flow in the central ascending tube. The multifunctional water pumping aerator is installed floated in water and anchored with bottom anchoring pier, and may be set in reservoir to inhibit the growth of algae, improve bottom ecological environment and inhibit the dissolving and diffusion of phosphorus, ammonia nitrogen, etc. in water.

The invention discloses an automatic cleaning method of a cleaning robot dragging-wiping piece. The automatic cleaning method is used for cleaning the dragging-wiping piece of the cleaning robot by using a base station in cooperation with the cleaning robot and comprises the following steps: after receiving a cleaning instruction, controlling the base station to spray water to the dragging-wipingpiece and controlling the dragging-wiping piece to rotate; after entering a spin-drying mode, stopping spraying water on the dragging-wiping piece, and controlling the dragging-wiping piece to rotatefor spin-drying, wherein the base station is controlled to perform at least one-time water pumping on the sewage after cleaning the dragging-wiping piece. The invention further discloses an automaticcleaning system of the cleaning robot dragging-wiping piece and a readable storage medium. According to the technical scheme, the base station can be used for automatically cleaning the dragging-wiping piece of the cleaning robot, and the cleaning efficiency can be improved. According to the method, the system and the storage medium in the invention, the dragging-wrapping piece can be cleaned up under the action of water flow, and accumulated water can be avoided from existing in a rinsing tank of the base station.

The invention discloses hydraulic automatic water-saving vehicle cleaning equipment, which relates to vehicle cleaning equipment and comprises a water saving device, a hydraulic device and an inductive control device. The water saving device consists of a middle water tank, a clean water tank, an accumulated water tank, a self-priming pump, a hydraulic tank, a nanometer filter screen, a hydraulicvalve, an automatic interchange valve, an automatic water pumping valve and an internal automatic blow-off valve. The hydraulic device consists of a rough cleaning workshop, an agent spraying workshop, a spray-washing workshop, a throw-drying workshop, a wax spraying workshop, a polishing workshop, a hydraulic nozzle, a self-inductive nozzle, throw-drying equipment and polishing equipment, and the inductive control device comprises an automatic control device and a remote control device. A vehicle is firstly roughly cleaned in the rough cleaning workshop, cleaning agent is sprayed on the vehicle entering the agent spraying workshop, then the vehicle enters the spray-cleaning workshop to be thoroughly cleaned in a spraying manner, is in a throw-drying process in the throw-drying workshop and enters the wax spraying workshop, wax agent is sprayed on the vehicle, then the vehicle is polished in the polishing workshop, accordingly, cleaning and maintenance of the vehicle are completed, and comprehensive water conservation and efficacy enhancement are synchronously realized. The hydraulic automatic water-saving vehicle cleaning equipment has the advantages of exquisite structure, multiple functions, wide applicability, high grade and efficiency, energy conservation, environmental protection, convenience in carrying and utilization, small occupied area, low manufacturing cost, high comprehensive cost performance and the like.

The invention relates to a light-wind-water complementary type water pumping and energy storing power generation peak adjusting device which belongs to the field of development and utilization of newenergy sources. The device is characterized in that an upper water storage reservoir is built on the mountain top in a mountain area depending on a high mountain; a lower water storage reservoir is built in a valley; the mountain slope exposed to the sun in the area is provided with a solar energy photovoltaic cell board; wind power generation fields are arranged on the upper water storage reservoir on the mountain top and the position at periphery with more favorable wind current condition; a water pumping and energy storing power generation peak adjusting power station is arranged between the upper water storage reservoir and the lower water storage reservoir; the lower water storage reservoir is provided with a water pump station; a water inlet pipe and a water outlet pipe of the waterpumping and energy storing power generation peak adjusting power station are respectively communicated with the upper water storage reservoir and the lower water storage reservoir; and a water inlet pipe and a water outlet pipe of the water pump station are respectively communicated with the lower water storage reservoir and the upper water storage reservoir. The invention can carry out large-scale development and storage in such a way that solar energy and wind energy are converted into water energy and lead a traditional water pumping and energy storing hydropower station to finish peak adjustment on a power grid under the condition of not consuming or consuming less electric energy of the power grid.

The invention discloses a construction method of a steel plate pile cofferdam, which is characterized in that the construction method comprises the following steps: (1) performing construction preparation work; (2) surveying and setting out: surveying and setting out to determine four corner points of the cofferdam according to the design size of the cofferdam and the center position of a support platform, and driving positioning piles at the corner points as control points for positioning the steel plate pile cofferdam; (3) constructing an internal support system constituted by a guide beam, a waling, an inner support, a connecting beam and a supporting beam; (4) firstly welding the waling and the inner support, assembling into a whole, lowering and then inserting and driving steel plate piles for construction; (5) performing mud suction on the cofferdam; (6) sealing the bottom of the cofferdam; (7) performing water pumping and foundation cleaning on the cofferdam; and (8) dismantling the cofferdam.The construction method can further expand the range of applications of the steel plate pile cofferdam by improving the construction sequence and adopting special construction equipment, and successfully realize the steel plate pile cofferdam under the geological condition of a super-thick sandy gravel layer.

The invention discloses a vacuum tube well precipitation and disposal method for rapidly restoring in-situ water and soil in a polluted place. The method comprises the following steps: arranging a precipitation tube well in a polluted region, and arranging a vacuum pump air extracting system, a submerged pump water pumping system and a chemical filling pipe in the precipitation tube well; arranging a disposal well in the polluted region, and connecting the disposal well with the submerged pump water pumping system; starting the vacuum pump air extracting system so as to guide polluted water in soil to flow into the precipitation tube well; continuously adding a restoring chemical into the chemical filling pipe, and reacting with the polluted water entering the precipitation tube well; after reacting for certain time, starting the submerged pump water pumping system, delivering pumped water into the disposal well, infiltrating the water in the disposal well into the soil again, repeatedly operating in the way, and finishing restoring after detecting that water and oil specimens meet standards. The method has the advantages of low cost, high water collecting efficiency, large affecting radius and capability of promoting underground water hydraulic circulation, and realizes water and soil integrated restoration in the polluted place.

The utility model provides a mixed wind-light compensation water pumping and energy storing system comprising a wind-light compensation unit, a controller, a direct current load, an alternating current load, an inverter and a water pumping and energy storing unit. The wind-light compensation unit comprises a wind generating set and a photovoltaic array; the water pumping and energy storing unit comprises reversible water pump-water wheel unit, an upper water pond and a lower water pond; and the controller comprises a wind-light compensation controller, a digital signal processor chip, a voltage / current sampling circuit, a voltage / current transformer set, a breaker driving circuit and three breakers. In the invention, a traditional wind-light compensation system, namely an energy storing device-storage battery set, is replaced by a pumped storage and power generation system, on the water pumping and energy storing unit, the reversible water pump-water wheel unit is used for pumping water or generating electricity, and by applying a segmented integration method, the energy of the upper water pond of the water pumping and energy storing unit is monitored and controlled. With the mixed wind-light compensation water pumping and energy storing system, the defects of expensiveness, short service life, environmental pollution and the like of a storage battery set can be solved, the system stability and power supply reliability can be improved, and the system building and running cost can be lowered.

A self-cleaning screen for shallow water pumping includes a rotatable drum made of mesh material for removing debris from water passing into the drum, and a suction chamber within the drum for feeding water to a suction pipe connected to a centrifugal pump. Inlet openings are arranged across a bottom side of the suction chamber. A check valve assembly is provided to prevent water from back flowing through the inlet openings, to thereby maintain a prime in the suction pipe when the pump is off. The check valve assembly includes valve members that are slidably mounted above the inlet openings for movement between closed and open positions. The valve members move upwardly from their closed positions to their open positions upon movement of water through the inlet openings into the suction chamber, and return to their closed positions by force of gravity when water stops flowing into the suction chamber.

A waste or storm water pumping station and system used to pump water from a lower elevation to a higher elevation during the process of moving or managing the water is disclosed herein. The pumping station has a wet well collection chamber with a sloped floor and an integral valve vault chamber cast within the pump station body, which results in increased storage capacity in the wet well chamber for pump station components. Additionally, the pumping station may be installed as a single unit of equal depth to eliminate differential settlement and multiple or uneven excavations.

The invention discloses a distributed using method for mine underground water. The method comprises the following steps of: A, exploring the underground space of a mining area to obtain the basic geological data of a stratum; B, observing well underground water to obtain the flow field distribution situation, water quality data and water pressure data of underground water; C, determining one or more goaf spaces through which underground water cannot pass after coal mining as water storing space(s) of a distributed underground water reservoir according to the obtained basic geological data of the stratum as well as flow field distribution situation condition, water quality data and water pressure data of underground water; D, when a determined water-storing space is formed, enabling underground water generated during coal mining of an adjacent working surface to permeate into the water-storing space naturally; and E, pumping underground water onto the ground surface for using through a water pumping hole which is communicated to the ground surface in each water-storing space when water is required, and refilling external water into the water-storing space when stored water is required to be increased. Due to the adoption of the method, the loss of underground water and the influences on the growth and recovery of the ecological environment can be reduced.

The invention relates to an underwater hybrid-power robot platform which comprises a housing, a mainframe cabin and a motion control cabin. The outer contour of the housing is in shape of bionic fish,one end of the housing is connected with a bionic fish tail structure, and propellers are arranged on two sides of the housing. The side, close to the front end of the housing, of the mainframe cabinis connected with a camera, and an electronic compass and a controller are arranged in the mainframe cabin. A pitching gravity center adjusting mechanism is installed in the motion control cabin. Thepropellers, the electronic compass and the pitching gravity center adjusting mechanism are electrically connected with a battery cabin. The underwater hybrid-power robot platform adopts the hybrid-power driving design of the propellers and the bionic fish tail structure, and the operating capability of a robot in a complicated ocean current environment is greatly improved. The underwater hybrid-power robot platform can carry multiple types of detection devices, can meet complicated task demands, can performs operations such as water quality extraction, detection and photography, can sample and detect water at different depths through a water pumping cabin and has a wide application prospect.

The invention relates to the technical field of sanitary ware, in particular to a mop bucket with a water pumping device. The mop bucket with the water pumping device comprises a bucket body, and a washing device and a drying device which are arranged in the bucket body, wherein a partition is arranged in the bucket body and is used for dividing the interior of the bucket body into a washing chamber and a drying chamber; the washing device is arranged in the washing chamber; the drying device is arranged in the drying chamber. The washing water is just injected into the washing chamber in the using process of the mop bucket, so that the weight of the mop bucket in the using process can be reduced, and the mop bucket can be conveniently moved; the water pumping device is arranged in the drying chamber, is driven to work by the drying device and is used for pumping the water in the drying chamber into the washing chamber and discharging the water in the drying chamber, so that a condition that the drying chamber is in the environment without water or with a small quantity of water can be ensured; the mounting height of the drying device can be reduced; the effect of effectively preventing the centrifugal water generated in the drying process from splashing can be realized.

The invention discloses a drought resisting and water saving cultivation technique for performing direct sowing on a dry paddy field by fully using natural precipitation, which is used for adjusting the growth period of paddy rice according to water requirements at each growth and development stage of the paddy rice and statistical data of historical meteorological data for a natural precipitation rule of every local ten days, so that each growth and development stage of the paddy rice is matched with the natural precipitation of every local ten days and corresponding comprehensive technical measures are taken to fulfill the aim of resisting drought, saving water and stably increasing yield. The cultivation technique changes a traditional paddy rice cultivation mode, finishes one season of paddy rice production only by using natural precipitation without soaking seed, raising rice seedlings and transplanting or needing irrigation and plowing and can directly perform direct sowing production on the dry paddy field in a dry land or a non-dry land. Therefore, the technique saves irrigation water, lowers costs of seedlings, transplanting, drought resisting, water pumping, plowing and the like, saves labor, cuts down expenditures and increases income and is favorable for realizing increment of grain production and rural incomes and agricultural efficiency and realizing resource conservation, energy conservation and emission reduction.

The invention discloses an integrated rainwater system for a sponge city and a construction method of the rainwater system. The rainwater system comprises a middle green belt and water storage tanks, wherein the middle green belt comprises a vegetation planting area and a rainwater infiltration area; a concrete course is arranged at the lower end of the rainwater infiltration area; a rainwater pipe is arranged at the lower end of the concrete course, and the rainwater pipe is connected to the water storage tanks; water pumping pipes are connected from the interiors of the water storage tanks; bidirectional nozzles are arranged at the other ends of the water pumping pipes; and water pumps are connected to the water pumping pipes. In accordance with the shortcomings of the prior art and the characteristics of the sponge city, the rainwater system, which integrates water seepage, water storage, water purification and utilization, is designed, and the construction method of the rainwater system is correspondingly designed; by promoting the water seepage with the adoption of vegetation, the problem of road water-logging is solved through slow discharge and controlled release; and in addition, some impurities in the rainwater are separated on the basis of the purification capacity of the vegetation, and the rainwater is stored in the water storage tanks and is used for spraying roads and watering the vegetation in dry season, so that adverse effect caused by drought and flood seasons can be effectively relieved.

The invention relates to a low-lift high-flow reversible tubular pump with asymmetric SX type blades. The low-lift high-flow reversible tubular pump comprises a forward water inlet runner, a rotating wheel, a guide blade, a gear box, a reversible motor, a bulb body, a sleeve pipe and a reverse water inlet runner. The low-lift high-flow reversible tubular pump is characterized in that the rotating wheel comprises the blades, a hub and a runner cone, wherein the blades are evenly arranged on the hub in the circumferential direction, and the runner cone is arranged on the reverse sluicing side of the hub; the blades are in a spatial warping SX shape, the axial midsection wing sections of the blades are in an asymmetric S shape, the guide blade is a movable guide blade oblique relative to the spatial curved surface, and the guide blade and the rotating paddle-type blades achieve the cooperation function. According to the low-lift high-flow reversible tubular pump, the demands that the water flow in a water pumping working condition and the water flow in a power generating working condition of the reversible tubular pump are opposite and the dual working conditions of water pumping and power generating can be met by one rotating wheel are met, and it is ensured that the efficiency in the two working conditions reaches the best. The reversible tubular pump is suitable for various reversible tubular pump stations with the water table drop ranging from 2 m to 5 m, and the efficient development and utilization of water resources can be achieved.

The invention discloses a farmland in-situ soil leaching solution collector and a using method thereof, belonging to the field of soil monitoring technology. The collector is composed of a leaching tray, a connecting pipe, a solution collector and a water pumping pipe; when the device is used, a pit is firstly dug and followed by digging an inner pit inside the pit, the dug inner pit is plugged with the leaching tray filled with quartz sand, the connecting pipe and the water-pumping pipe are connected properly, and soil is then gradually backfilled and tamped layer by layer. Watering is performed many times to restore the soil in the pits basically, thus the solution collector can collect the leaching solution of farmland in-situ soil above the leaching tray. The device according to the invention has simple appearance design, small workload for installation and embedment and easy operation. After the device is installed, only the water-pumping pipe thereof is exposed on the ground, thereby taking up no farmland and causing no influence to routine farming.

The invention discloses a gas-liquid pump, which consists of a liquid tube and a gas tube, wherein the liquid tube is provided with a gas conveying hole which is connected with the gas tube; the pressure of gas in the gas tube is higher than the atmospheric pressure; the horizontal height of the upper port of the liquid tube is greater than that of the lower port; the upper port of the liquid tube is communicated with the atmospheric air to a water pumping height; the lower port of the liquid tube is soaked into a liquid; a water body is elevated by pressured gas; the gas-liquid pump can consist of two or more gas-liquid pumps; the upper port of a primary gas-liquid pump is connected with the lower port of a secondary gas-liquid pump, and the gas-liquid pumps can be connected in a cascaded way to form a cascaded gas-liquid pump; and a liquid output from the upper port of the primary gas-liquid pump and a liquid needing to be input into the lower port of the secondary gas-liquid pump are continuously and alternatively conveyed through a container. The gas-liquid pump has the characteristics of simple structure, easiness for manufacturing, no limit on the water pumping height, small needed equipment, high energy conversion rate, small investment-gain ratio, wide application range and freeness from maintenance.

The invention discloses medical garbage treatment equipment. The medical garbage treatment equipment comprises a base. A treatment box is arranged on the upper side of the base. Disinfectant storage boxes are arranged at the upper ends of the left side and the right side of the treatment box. An electric control box is arranged on the lower side of one disinfectant storage box. A crushing cavity is formed in the upper end in the treatment box. A charging port is formed in the upper side of the crushing cavity. A stirring cavity is formed in the lower side of the crushing cavity. A plurality ofsprayers are arranged at the left end and the right end of the upper side of the stirring cavity. The upper sides of the sprayers are provided with connecting pipes. The upper side of each connectingpipe is provided with a U-shaped water pumping pipe. A second motor is arranged on the left side of the stirring cavity. A stirring shaft is arranged on the right side of the second motor. Stirring rods are arranged on the upper side and the lower side of the stirring shaft. An extrusion cavity is formed in the lower side of the stirring cavity. Telescopic rods are arranged on the left side and the right side in the extrusion cavity. Extrusion plates are arranged on the inner sides of the telescopic rods. The medical garbage treatment equipment can effectively conduct crushing, sterilizing, disinfecting and extruding block forming treatment on medical garbage, medical garbage treatment can be convenient, the treating quality is guaranteed, and environment pollution caused by the medical waste is prevented.

The invention discloses a well group reforming comprehensive utilization method for waste oil wells, and belongs to a geothermal energy mining and utilizing technology. According to the method, the well sealing work on the waste oil wells is completed by carrying out sealing of the single well, perforation or perforation fracturing, sand flushing for well washing, upper sleeve reforming and water pumping test on the waste oil wells, and then combined utilization of a waste oil well group is completed by carrying out heating network connecting and effect test on the sealed single well. According to the method, the problem that the waste oil wells are left unused is solved, wastes are turned into treasures; a new way for utilization of the waste oil wells in an oil field is developed; meanwhile, a technical support is provided for development and utilization of energy with a thick heat storage layer, a large distribution area and high geothermal temperature; the energy saving and emission reducing effects are good; the waste oil well reforming cost is low, and the social and economical benefits are outstanding.

The simulator includes following parts and structures: water storage tank with water pump; simulation chamber with floor plate being retained at horizon; water supply cavity inside the simulation chamber; simulation cavity with water bearing; pumping well; top impermeable layer is on superface of water bearing; pervious mesh boards; flooding backwater cavity in constant head flooding chamber located at upstream end is connected to water storage tank; flooding backwater cavity in pumping flooding chamber located at down stream end is connected to water storage tank; at least three sets of glass tube for measuring pressure are installed on wall of simulation cavity; passing through wall of simulation cavity, ends of flexible tubes connected to bottoms of tubes of measuring pressure are inserted to water bearing. The invention can determine hydrogeologic parameter and water output from water bearing, reveals state of seepage, water bearing and structure of pumping well.

The invention provides a method and an apparatus for washing and cleaning fruits and vegetables. The apparatus has a degassing means (14); a washing tank (26) which accommodates at least one item for cleaning; an ultrasonic means (28); at least one water pumping means (32); a water jetting means (62) for directing a plurality of jets of water towards the at least one cleaning item to halt circulation and motion of water in the washing tank (26) and concurrently to bring the rotation and motion of the at least one cleaning item to halt within the shortest period of time, a holding means (52, 70) to facilitate passage of ultrasonic energy through the water to optimally penetrate the at least one cleaning item immersed therein; and a control means (16) for programming and executing relevant process parameters in the operation of the apparatus.