23 results about "Water contact" patented technology

The invention relates to the technical field of soil disintegration measurement, and discloses a test device for a soil disintegration test, which comprises a shell, the outer wall of the shell is rotatably connected with a turntable, the top of the shell is fixedly connected with a suspension rod, the outer wall of the suspension rod is fixedly connected with an iron wire net, and the inner wall of the iron wire net is fixedly connected with a soil taking knife sample. When a cylinder rotates, two balancing weights slide in the direction away from each other, a ball head is extruded to make contact with inclined faces on two spoilers, the two spoilers are extruded to move in the direction away from each other, and the water contact area of the two spoilers and the outer wall of a fixed shell is increased; water is driven to rotate along with the cylinder under the limitation of the flow guide plate, and part of water flow can pass through the flow guide holes in the flow guide plate, so that the rotating speed difference generated by inner and outer water bodies due to instantaneous acceleration of the cylinder is effectively reduced, and then local vortex is generated.

An object of the present invention is to provide a flow velocity measuring system in which a sensor is not in contact with water and which can measure a flow velocity of water with a simple configuration. Another object of the present invention is to provide a novel flow rate measurement system capable of measuring a flow rate of water based on the flow velocity.SOLUTION: The flow velocity measuring system includes a drainage pipe, a distance sensor, and a measuring unit, the drainage pipe being capable of discharging water from a water discharge port in a horizontal direction, the distance sensor being disposed at an arbitrary position facing the water discharge port at a horizontal distance D and a vertical distance Y from the water discharge port and being capable of detecting a horizontal distance Xo from the water discharge port to water, the measurement means is capable of measuring the flow velocity Vo of the water discharged from the water discharge port from Xo, D, Y, and the gravitational acceleration g.SELECTED DRAWING: Figure 1

This invention discloses a method for increasing shale gas production from multi-stage fracturing shale formations. First, water containing water-absorbing resin is intermittently injected into the shale gas well, impacting the shale layer and creating multiple fractures, forming a primary fracturing process. Next, liquid nitrogen and sodium particles are injected into the shale gas well. The resin, already saturated with water, remains within the fractures. At this point, the liquid nitrogen cools the shale layer below its freezing point, causing the saturated resin to freeze and rapidly expand, forming a secondary fracturing process. Then, as the injected liquid nitrogen continues to vaporize, it further freezes the water and water-absorbing resin adsorbed by the shale, forming a tertiary fracturing process. When the temperature of the shale layer exceeds its freezing point, the expanded ice on the water-absorbing resin melts into water. At this point, the sodium particles react with the water, releasing a large amount of heat, causing the shale layer temperature to rise rapidly, creating a thermal shock to the low-temperature shale layer, forming a quaternary fracturing process. This completes the multi-stage fracturing process of the shale layer, effectively improving the extraction efficiency of shale gas.

The invention provides a preparation method of an organic-inorganic hybrid sol and rock-soil base material surface transparent anticorrosive coating, and belongs to the field of protective coatings. The organic-inorganic hybrid sol provided by the invention is prepared from the following raw materials: an inorganic ceramic precursor, organic functional group silane, long-chain alkyl silane, a curing catalyst, a solvent and water, the mass ratio of the inorganic ceramic precursor to the organic functional group silane to the long-chain alkyl silane is 1: (0.2-0.6): (0.15-0.3). The organic-inorganic hybrid sol provided by the invention is applied to the surface of a rock-soil base material, can be completely cured at 5-40 DEG C, has the visible light wave band light transmittance of greater than 82%, and has good light permeability; the drawing adhesive force with rock-soil base materials is greater than 1.8 MPa, the pencil hardness is greater than 4H, the water contact angle is greater than 105 degrees, the surface can be unchanged after an alkali resistance test, and the coating has relatively high hardness, adhesive force and alkali resistance.

The invention provides a shallow geothermal energy exploitation method adopting coaxial sleeve type permeable pipe piles. The method comprises the following steps that S1, the coaxial sleeve type permeable pipe piles are prefabricated; s2, the coaxial sleeve type permeable pipe pile is installed; s3, underground water makes contact with the coaxial sleeve type water permeable pipe pile through the water permeable holes; s4, the circulating medium continuously exchanges heat with the water body outside the pile through the pipe wall of the outer pipe; and S5, the pipe wall of the outer pipe makes direct contact with the underground water through the water permeable holes, then the heat energy of the underground water is transferred to the circulating medium with the first temperature t1, and therefore the underground convective heat exchange function is indirectly achieved. The pile body of the water-permeable pipe pile is adopted, underground water is actively guided to permeate and flow in holes of the pile body, the flowing underground water rapidly takes away heat released or absorbed by the coaxial sleeve in a convection mode, and the transportation rate of the heat between the pile body and a water body is greatly increased.

The present invention relates to an apparatus for checking leakage of a pipe through which high-temperature process water flows. The apparatus for checking leakage comprises: a first layer surrounding a pipe and facing the pipe; a second layer exposed to the outside; a heat insulating material layer positioned between the first layer and the second layer; a leakage checking unit having at least a portion exposed to the outside, positioned on the first layer, and coming in contact with water to change the color thereof; and a guide unit positioned over the first layer and the second layer and guiding the process water leaked from the pipe to the leakage checking unit.

The utility model discloses a corrosion-resistant water quality monitoring device for environmental assessment, and particularly relates to the technical field of water quality monitoring equipment, the corrosion-resistant water quality monitoring device for environmental assessment comprises a base and a monitor arranged on one side of the top surface of the base and used for monitoring water quality, a protective sleeve is arranged on one side of the outer surface of the base, and a corrosion-resistant water quality sensor is arranged in the protective sleeve; the outer bottom face of the protective sleeve is in threaded connection with a connecting cover, a balance weight box is fixedly installed on the outer top face of the protective sleeve, and a connecting plate is arranged on one side of the base. According to the corrosion-resistant water quality monitoring device for environmental assessment disclosed by the utility model, in actual work, a user rotates the rotating handle to enable the winding drum to rotate, the traction rope can descend the protective sleeve into a water area, and the water quality sensor is in contact with water, so that the water quality is monitored; and the protective sleeve can effectively prevent large-size sundries in a water area from being in direct contact with the water quality sensor, so that the large-size sundries can be effectively prevented from damaging the water quality sensor.

The application relates to the technical field of oilfield ground injection enhancement, and discloses a dynamic sealing device. The dynamic sealing device comprises a pump body, a sealing cavity, a high-pressure cavity and a sealing pipe. The sealing cavity is fixed in the pump body and used for storing sealing oil; the high-pressure cavity is fixed in the pump body and used for storing high-pressure fluid; and the sealing pipe is connected with the sealing cavity and the high-pressure cavity. The sealing oil and the high-pressure fluid pass through the sealing pipe and form an oil-water contact surface in the sealing pipe, so that the high-pressure fluid is prevented from entering the pump body. Through the scheme, the problems that the sealing device is prone to wear, the sealing cost is high, and the maintenance period is long during the operation of the injection enhancement unit due to high pressure, large displacement and large pressure difference are solved, the structure of the sealing device of the injection enhancement unit is optimized, the sealing cost is reduced, the sealing is reliable, and the sealing is convenient to maintain.

The invention relates to the technical field of water conservancy projects, and discloses a modular dike leak plugging device which comprises a main body, and a placing hole is formed in the main body. When water flow enters the space between a trapezoidal plate and a sliding plate, a rubber layer extends, so that the water yield between the trapezoidal plate and the sliding plate is increased, and when part of the water flow enters the sliding plate, the rest of the water flow makes contact with the side wall of the sliding plate and exerts thrust on the side wall of the sliding plate at the same time; the sliding plate slides towards the direction of the main body in the fixed frame when being pushed, and is in contact with water flow between the sliding plate and the trapezoidal plate when sliding, so that reverse pushing force is applied to the sliding plate, the pushing force borne by the sliding plate after the sliding plate is in contact with the water flow is reduced, and the situation that the water flow is blocked by the sliding plate after the leakage hole is blocked is reduced. And the situation that the blocking plate deforms under continuous impact of water flow is avoided, the blocking effect of the sliding plate on the loopholes is enhanced, and the blocking efficiency of the device in the loophole blocking process is improved.

The utility model relates to the technical field of waste mineral oil recovery, and discloses oil-water separation equipment for waste mineral oil processing, which comprises a separation tank, one side of the separation tank is fixedly communicated with a connecting pipe, one end of the connecting pipe is fixedly communicated with a filter box, and a separation structure for separating oil and water is arranged in the separation tank. Through the arrangement of the separation structure, the gear pump conveys waste oil in the filter tank to the separation tank, the waste oil flows downwards step by step from the uppermost arc plate, the flow speed is reduced step by step, the oil-water contact time is prolonged, layering is promoted, the standing separation efficiency is improved, after the waste oil is accumulated to a certain liquid level, the valve is opened, and settled water is discharged through the discharge pipe; the heating coil heats waste oil and residual water and is connected with the vacuum pump through the exhaust pipe, negative pressure is formed to lower the boiling point of the water and increase the evaporation speed, evaporated water vapor is discharged through the exhaust pipe, the oil-water separation precision is improved, and stable operation of equipment is ensured.

The invention relates to the field of underwater environment simulation, in particular to a compressed air energy storage system air bag test device for simulating an underwater environment, which comprises a pressure container with an air inlet at one end and an air outlet at the other end; the air hole plate is arranged in the pressure container; the external air bag is arranged in the air hole plate; the test air bag is arranged in the external air bag, and a liquid medium is injected into a gap between the test air bag and the external air bag; the outer flow guide ring is arranged at the air outlet of the pressure container, an outer flow guide channel is formed between the outer flow guide ring and the air outlet of the pressure container, and high-pressure air between the pressure container and the air hole plate flows out of the outer flow guide channel; the inner flow guide ring is arranged on the inner side of the outer flow guide ring, an inner flow guide channel is formed between the inner flow guide ring and the outer flow guide ring, and high-pressure gas between the external air bag and the air hole plate flows out of the inner flow guide channel. The technical problems that the deep sea test cost is high, and a traditional simulation method is difficult to reproduce the water pressure gradient and the water contact environment at the same time are effectively solved.

The invention provides a dam water level detection device and method, relates to the field of dam water level monitoring, and aims to solve the problem that existing dam water level detection equipment is poor in detection element water contact state recognition precision, a traction rope is adopted as a traction rope to drive a detector to move along a pressure measuring pipe, and the pressure measuring pipe serves as a part of a closed conductive loop. After the detector moves to the bottom conductive tip to touch water, a conductive closed loop is formed, the water touch state is accurately and quickly identified, and after the detector is separated from the water, the detector is disconnected to identify the water leaving state, so that misjudgment caused by wetting of a sensing device is avoided, and the detection accuracy and precision are improved.

Examples described herein provide a computer-implemented method for performing automatic geosteering. The method includes receiving, by a processing system, formation evaluation data from a bottom hole assembly disposed in a wellbore. The method also includes determining, by the processing system, position data of a formation boundary from the formation evaluation data. The method also includes extrapolating, by the processing system, the position data to generate extrapolated position data of the formation boundary. The method also includes adjusting a trajectory of the wellbore based at least in part on the extrapolated position data of the formation boundary.

The utility model relates to the technical field of connection and sealing of cooling devices, in particular to a marine cooling device with a leakage-proof sealing structure. The cooling device comprises a cooling cylinder, two water passing pipes are installed on the side wall of the cooling cylinder, a connecting pipe is arranged at one end of each water passing pipe, the water passing pipes and the connecting pipes are in sealed connection through a sealing mechanism, the sealing mechanism comprises a bearing ring fixed to one end of each connecting pipe and a hollow circular truncated cone, and the hollow circular truncated cones are arranged on the sides, away from the connecting pipes, of the bearing rings; a sleeve is fixed to one end of the water passing pipe, the radius of the sleeve is larger than that of the water passing pipe, and one end of the connecting pipe is inserted into the sleeve. The sealing ring grooves are formed in the side wall of the conical hollow circular truncated cone and the side wall of the inclined ring surface, and the bearing ring is pressed and covered through the locking mechanism, so that the hollow circular truncated cone and the inclined ring surface are in tight contact, the rubber ring is prevented from being in direct contact with river water or seawater, and corrosion of the river water or seawater to the rubber ring is reduced.

The utility model relates to a cooling fan. The cooling fan comprises a machine body and a fan cover, wherein an air outlet is formed in the machine body; the air supply assembly is arranged in the machine body and used for conveying air flow to the air outlet; the water supply assembly is used for conveying water to the air flow, and the water supply assembly comprises a water tank made of a light-transmitting material; the photoelectric sensor is arranged on the outer side of the water tank and used for detecting the height of the water level in the water tank; the controller is in communication connection with the photoelectric sensor and the water supply assembly so that the water supply assembly can be controlled to be opened and closed on the basis of the water level height measured by the photoelectric sensor. According to the cooling fan, the photoelectric sensor is arranged on the outer side of the water tank to measure the height of the water level and does not make contact with water, water corrosion is avoided, and the service life is prolonged.

The utility model provides a kind of dam gate ice prevention device, the ice prevention device includes: air guide component, the air guide component appears bubble in river by conduction gas, bubble rises and destroys water surface calm layer, delays freezing;Temperature rising component, the temperature rising component is used to promote the surface temperature of gate, to melt the ice crystal on the gate surface, the utility model relates to ice prevention device technical field, gas generated by gas generating component is conducted to gas collector, gas is shunted into branch bronchus in gas collector, gas is guided from the water surface of gate along branch bronchus, bubble is formed under water when gas is discharged, bubble rises and destroys water surface calm layer, and then delays the freezing speed of gate and water contact surface, compared with traditional deicing agent deicing, reduce the influence to fish, more in line with environmental protection concept.

The invention discloses a device for monitoring and preventing sudden boiling of an oil product storage tank. The device mainly comprises a hot oil pipeline, an ejector, a top spraying ring pipe, a drainage pipeline, a pump and various sensors. The ejector is integrated on the oil conveying pipeline and used for being mixed with cold oil to actively cool when hot oil is injected. An inlet of the drainage pipeline is located in the tank bottom water layer, and an outlet is connected with the top spraying ring pipe and used for pumping out water in the water layer and spraying the water to the tank wall. Cooling prevention is achieved through an ejector, oil-water contact is delayed in combination with a spraying system, and meanwhile the state in the tank is monitored in real time through multiple sensors. Compared with the prior art, the system integrates active prevention and intelligent monitoring, and has the characteristics of high reliability, high response speed, high automation degree and the like.

The application provides a prefabricated pipe gallery with toughening and anti-seepage functions and belongs to the technical field of geotechnical engineering. The problems of insufficient anti-seismic performance and easy water seepage of the traditional prefabricated pipe gallery are solved. The device comprises a prefabricated pipe gallery, a high-pressure nozzle excavation device and a pipe gallery joint. The prefabricated pipe gallery has the beneficial effects that the cavity filled with gelatin will swell after being contacted with water, the water seepage channel of the prefabricated pipe gallery is filled, and the function of rapid water seepage stopping is achieved; the importance of the middle wall structure to the overall structure is weak, the middle wall made of EPS concrete has the advantages of lightness, high damping, strong anti-seismic performance and easy replacement; the two ends of the middle wall are provided with No. 2 dampers, which can better absorb seismic wave energy during an earthquake; and the prefabricated pipe gallery pipeline base is arranged on No. 1 damper, so that the safety of the pipeline under the action of an earthquake is ensured.

There is provided a water quality probe system, the system comprising: one or more water contact sensors; a geolocation unit; a processing circuitry (PC), operably connected to the one or more water contact sensors and to the geolocation unit, the PC being configurable to: receive, from one or more of the water contact sensors, data indicative of one or more water characteristics sensed from contacted water; receive, from the geolocation unit, data indicative of a current geographical location; and determine data indicative of whether the contacted water satisfies one or more water quality criteria, utilizing, at least, the received sensed water characteristics and the current geographical location.

The invention provides a sonar device, a water entry state detection method thereof and a storage medium. The water entry state detection method comprises the steps that S1, a signal processor acquires a response signal; s2, the signal processor carries out signal processing on the response signal to obtain characteristic parameters representing the underwater state of the sonar device; and S3, the signal processor compares the characteristic parameters with at least two water entry states to determine the water entry state corresponding to the sonar device. The known reference signal is transmitted through the transmitting transducer, and the echo, the near-field radiation and the structure coupling response are sampled by using the receiving transducer. By analyzing the characteristics or statistics of the sampled signals, the difference existing in medium loading is judged, and then whether the transmitting transducer enters water or not is judged. The detection method does not depend on a water contact device, so that the reliability problem caused by an additional device can be effectively avoided.

The invention discloses a hole spraying prevention device for coal mining drilling, and relates to the technical field of coal mining drilling, the hole spraying prevention device comprises a protection machine body, a sealing pipe body is fixedly connected to the protection machine body, a dilution mechanism is arranged at one end, away from the protection machine body, of the sealing pipe body, and the dilution mechanism comprises a hollow mounting ring; and a plurality of connecting pipes are fixedly connected in the mounting ring. According to the device, the diluting mechanism is arranged, when rock debris impurities discharged through drilling are thick, through cooperation of a mounting ring, a connecting pipe and a liquid outlet hole, the thick impurities entering the protection machine body are diluted, and therefore the phenomenon that the thick impurities are damaged when the thick impurities pass through the protection machine body and are discharged is effectively avoided. According to the drilling machine, the problem that due to the fact that the drilling machine body adheres to a discharging channel of the protection machine body, the discharging space is reduced is solved, meanwhile, the viscosity is reduced by adding water, when the water makes contact with a drill rod, the drill rod cooling effect is achieved, the defects in the prior art are overcome, the discharging smoothness of the protection machine body is improved, and normal drilling work is guaranteed.

The present application relates to the well completion technology in the field of oil and gas field, natural gas hydrate and other underground resource exploitation, and specifically provides a self-adaptive plug removal pre-packed sand control screen pipe based on hydrophobic-negative double functional coating and a preparation method thereof, the filled multifunctional pre-packed particles are of core-shell structure, the inner core comprises pre-packed particles, the shell comprises hydrophobic-negative double functional coating, the hydrophobic-negative double functional coating has hydrophobicity and negative electricity and can synergize, the water contact angle is greater than or equal to 110 degrees, and the Zeta potential is less than or equal to -30 mV, through reducing the water phase wettability and generating electrostatic repulsion, the double repulsion to the water phase and the negatively charged clay particles is realized, and the anti-mud jam and self-adaptive plug removal without external energy can be realized.

The invention discloses a water-encountering packing control device for wellhead sealing, and relates to the technical field of well sealing, the water-encountering packing control device comprises a rubber sleeve, a central pipe and a slip which are arranged on a packer body, the front end of the packer body is detachably connected with a fixed pipe through a mounting mechanism, and the bottom of the fixed pipe is fixedly connected with a mounting cover; a rotating disc is rotationally connected into the mounting cover through a rotating mechanism, and a plurality of sampling grooves are formed in the top of the rotating disc and penetrate through the bottom of the rotating disc. According to the water-encountering packing control device for wellhead sealing, sampling is carried out through the sampling groove in the rotating disc, standing and detection are carried out in the rotating process of the rotating disc, the detection accuracy can be improved, meanwhile, impact abrasion of crude oil to the water content sensor can be avoided, the detection effect and the service life of the water content sensor are guaranteed, and in addition, the water-encountering packing control device is suitable for popularization and application. When encountering water, intelligent control sealing of a well mouth can be achieved, and safety and reliability are achieved.