14results about How to "Reduce water impact" patented technology

This application relates to a low-temperature cooling tower, belonging to the technical field of cooling equipment. It includes two tower body assemblies, a variable frequency fan assembly, an integrated circulation pipeline module, and a coordinated water distribution module. By incorporating the variable frequency fan assembly, when the cooling tower starts, the drive motor drives the shaft to rotate via bearings. The fan blades on the shaft surface then rotate at high speed, forming a stable airflow inside the outer shell. Outside air enters the tower body through the air inlet mesh on the side of the tower body assembly, exchanges heat with the internal components, and is then discharged through the top of the outer shell. The drive motor supports variable frequency adjustment, dynamically adjusting the speed based on temperature data from the temperature sensor inside the finned heat exchanger. This structure allows the fan blade speed to be adapted to actual cooling needs through variable frequency adjustment, reducing energy waste compared to a fixed-speed fan. Furthermore, the finned heat exchanger enhances heat exchange, improving cooling efficiency.

The utility model discloses a water-jet-guided laser processing machine tool capable of recycling waste water, which relates to the technical field of water-jet-guided laser processing machines and comprises a shell, and a processing table is fixed at the central position in the shell. Waste water and chippings generated by machining are guided to flow to the water outlets in the two ends through the inclined drainage grooves in the surface of the machining table and fall to the filtering assembly through the water outlets. A folded edge groove formed by three layers of flow guide plates and an upper folded edge in the filtering assembly slows down water flow impact, so that large-size chippings are precipitated and temporarily stored, and the chippings in the folded edge groove can be conveniently cleaned through an integrally-formed scraping plate; the lining frame further intercepts suspended chippings, the preliminarily filtered wastewater flows into wavy filter cloth at the top of the wastewater frame through drainage holes in the bottom of the positioning frame, the filter cloth adsorbs fine impurities by increasing the contact area, and finally the purified wastewater is collected in the wastewater frame, so that graded filtration and recovery of the processing wastewater and efficient separation and cleaning of the chippings are realized; and the water resource utilization rate and the machine tool maintenance convenience are improved.

The utility model relates to the technical field of closestools, in particular to an intelligent closestool with a water-saving, pressure-reducing and noise-reducing valve, the rear end of an intelligent closestool body is provided with an empty slot and a water inlet pipe located in the empty slot, the pressure-reducing and noise-reducing valve fixed in the empty slot is arranged on the water inlet pipe, a time period control module is arranged in the pressure-reducing and noise-reducing valve, and the time period control module is connected with the water-saving, pressure-reducing and noise-reducing valve. The time period control module arranged in the pressure reduction and noise reduction valve can automatically distinguish day and night time periods and automatically switch to a low-pressure mode at night, so that water flow impact force during flushing is reduced, flushing noise is effectively reduced, the influence on rest of family members is avoided, and particularly the sleep environment of old people and infants is protected.

The utility model discloses a corn pulp fermentation process in the on -line metering device of bubble enemy, including the measuring jar, and the lower part of measuring jar is installed with water inlet pipe and bubble enemy granule feed pipe respectively, and the inner wall of measuring jar is installed with support, and the support is installed with the buffer board corresponding with the water outlet end of water inlet pipe, and the filter screen is installed in the measuring jar, and the aperture of filter screen is less than the maximum diameter of qualified bubble enemy granule, and the rotating rod is installed in the measuring jar, and the liftable floating plate is installed on the rotating rod, and the density of floating plate is less than the density of bubble enemy solution, and floating plate is located above the filter screen. The utility model has the beneficial effects that: through setting up support and buffer board cooperation can effectively reduce the water flow impact force of water outlet end of water inlet pipe, make the water flow of water inlet pipe steady enter the measuring jar, and the density of setting up floating plate is less than the density of bubble enemy solution can be in the process of liquid inlet and float steadily, thereby avoiding the deviation of liquid level sensor measurement caused by upper liquid level swing.

This invention discloses a method for preparing a superhydrophobic drag-reducing coating and its application in a manta ray-inspired submersible prototype, belonging to the technical field of underwater drag reduction and surface functional materials. The method includes: dispersing micron-sized SiO2 and nano-sized SiO2 in ethyl acetate to obtain a first dispersion; dispersing PDMS in ethyl acetate to obtain a second dispersion; mixing and stirring the first and second dispersions, then adding a curing agent and long-chain perfluoroalkyl silane PFDTES, followed by spraying and curing to obtain a PFDTES-PDMS@SiO2 coating. This invention achieves a water contact angle >150° and a roll-off angle <9° through the synergistic effect of PFDTES long-chain fluorination modification, PDMS flexible bonding, and the micro / nano dual-scale SiO2 hierarchical structure. In the manta ray-inspired submersible application, a drag reduction rate of 14.43% is achieved at a flow rate of 0.5 m / s, and the performance remains stable after 24 hours of dynamic water flow impact. This invention features a simple process, controllable cost, and is suitable for drag reduction functionalization of complex curved underwater equipment.

The utility model discloses a device for collecting stream fishes and eggs, which comprises a frame, grips are symmetrically arranged on two sides of the frame, a cloth cover is arranged on the inner side of the frame, a compression ring is arranged on the inner side of the cloth cover, the cloth cover is compressed on the inner side of the frame by the compression ring, a netting is arranged at the rear end of the cloth cover, and the netting can be quickly detached and replaced. A flow guide plate is arranged at the bottom of the frame, and the flow guide plate is detachably connected with the frame. Through the design of the netting, netting gears with different mesh numbers can be rapidly replaced, and the requirements of various collection objects are met; a worker holds the grip to push the whole collecting device from the bottom of the stream, so that the effect can be achieved; a flow guide plate structure can buffer water flow impact, and physical damage to eggs and seedlings is reduced in cooperation with a bottom-attaching moving mode; the light frame reduces water disturbance during operation, and the stability of the collection environment is maintained. Through cooperative operation of two persons and the design of the movable base, the device can be quickly propelled in a stream substrate, and large-area sampling is realized.

The invention relates to the technical field of communication and transportation engineering, and discloses an overwater ground effect aircraft which comprises an aircraft body, wings, limiting rings and adjusting plates. During takeoff, extension wings extend out of hydrofoils to increase the contact area, provide extra hydrodynamic force lift force and reduce the head wave resistance, and hydraulic rods adjust the underwater depth and included angle of the hydrofoils in real time; the taxiing distance is shortened, and the takeoff power is reduced; and the hydrofoils are automatically retracted after lift-off, so that aerodynamic resistance is reduced. During landing, the hydrofoil is unfolded, the angle is adjusted and controlled to form a buffering lift force area, water entry impact is reduced, the flight control system adjusts the posture of the hydrofoil in real time, underwater additional torque is provided, posture controllability is improved, the taxiing distance is shortened, energy consumption is reduced, and stability is enhanced. When the wing ship mode is switched, pneumatic propulsion is closed, and the driving shaft drives the underwater driving paddle to drive the aircraft under low-power operation; and when the direction is adjusted, the direction of the driving paddle is changed through rotation of the first worm wheel, and the design can quickly switch modes, greatly reduce energy consumption and widen the use scene.

The utility model relates to the technical field of filling devices, and discloses an automatic filling device of a stainless steel water tank, which comprises a bottom plate serving as a supporting main body, a stainless steel water tank body is fixedly connected to the left side of the top end of the bottom plate, and a connecting pipe is fixedly connected to the top end of the stainless steel water tank body. Fixing blocks are fixedly connected to the two sides of the outer wall of the connecting pipe, limiting plates are slidably connected to the inner walls of the fixing blocks, inserting blocks are fixedly connected to the opposite ends of the limiting plates, first springs are arranged between the fixing blocks and the inner walls of the limiting plates, and a connecting cover is slidably connected to the outer wall of the connecting pipe. According to the utility model, the inserting block is pressed to be separated from the interior of the connecting cover by pressing the button, and the connecting cover is taken down during separation, so that a maintainer can quickly separate the water pipe from the water tank, quickly position a fault point and repair the fault point, the downtime of equipment is shortened, and the influence on normal water use is reduced.

The utility model relates to the technical field of intercepting wells, and provides an intercepting well with a sand setting and separating function, which comprises an intercepting well body, the flow guide table is fixedly connected to the lower end of the inner wall of the intercepting well body, a partition plate is fixedly connected to the inner wall of the intercepting well body on one side of the flow guide table, and a fine filter plate is arranged at the top end of the partition plate; the sludge discharging assembly is assembled at the lower end of one side in the intercepting well body; the filter frame is slidably connected to one side of the interior of the intercepting well body, the upper end of one side of the intercepting well body is fixedly connected with a water inlet pipe, the lower end of the other side of the intercepting well body is fixedly connected with a water drainage pipe, and one side of the front face of the intercepting well body is fixedly connected with an overflow pipe; the buffer assembly is assembled on the inner top wall of the filter frame, settled silt can be conveyed and discharged through the arranged silt discharging assembly, the complexity and inconvenience of manual desilting are avoided, the fine filter plate is arranged to prevent raised silt from being discharged through the drainage pipe, and the practicability of the device is improved.

The application relates to a multifunctional airbag system for assisting a cross-medium vehicle to quickly cross media, which is suitable for a rotary-wing cross-medium vehicle and comprises an airbag buffer device, an airbag ballast device and a multi-airbag air volume unified control module. The airbag buffer device is arranged at the head of the cross-medium vehicle, the airbag ballast device is arranged at the middle section of the cross-medium vehicle, and the multi-airbag air volume unified control module is arranged at the tail of the cross-medium vehicle. The cross-medium vehicle is provided with three functions of underwater attitude adjustment, high-speed water entry buffering and rapid water exit assisting, the airbag ballast device replaces a traditional ballast water system, the inflation amount of the ballast airbag and the propeller power are controlled, and the functions of the cross-medium vehicle in underwater attitude adjustment, such as floating, diving and rotating, and the function of zero-energy consumption suspension in water can be realized.

This invention provides an attapulgite-based permeable reactive barrier and method for remediating sites contaminated with halogenated hydrocarbons, belonging to the field of groundwater treatment technology. It includes a reactive barrier main body perpendicular to the water flow direction, a front guide wall located at the water inlet of the reactive barrier main body, a rear guide wall located at the water outlet of the reactive barrier main body and symmetrically distributed with the front guide wall, and several attapulgite filter media modules installed on the reactive barrier main body. A first and second mounting frame with a wave-shaped structure can extend the water flow path, increasing the contact time between pollutants and the attapulgite filter media modules. Simultaneously, a second mounting frame is provided on the outlet side of each first mounting frame, and the second mounting frame is equipped with a rotating mounting frame for installing the attapulgite filter media modules. This allows the water to flow through the reactive barrier main body more quickly by rotating the mounting frame, ensuring purification effect while improving the overall treatment efficiency of the permeable reactive barrier.

The utility model relates to the technical field of desilting of a water tank of an annular cooler, and solves the problem that the water tank of the annular cooler in the prior art is easily blocked by dust. The desilting device comprises a settling pond assembly which comprises at least three stages of settling ponds which are sequentially connected in series, and the heights of the settling ponds are sequentially decreased; one end of the drainage pipe is arranged in the upper water tank of the circular cooler, the other end of the drainage pipe is connected to the first sedimentation tank, and the drainage pipe is used for conveying the sludge-water mixture in the water tank into the sedimentation tank assembly; one end of the water feeding pipe is connected with the last-stage sedimentation tank, and the other end is arranged in the circular cooler water feeding tank; and a water pump is arranged on the water feeding pipe and is used for conveying the settled clear water back into the water tank. By adopting at least three stages of serially-connected sedimentation tanks with gradually-decreased heights, step-by-step sedimentation is realized by utilizing gravity self-flowing, the sludge separation efficiency is effectively improved, the content of suspended matters in clear water is reduced, the treated clear water is recycled, and the energy consumption is reduced.

The utility model belongs to the technical field of sewage treatment, and particularly provides an arc-shaped water inlet weir of a denitrification filter tank, which comprises a weir body and a weir plate, the weir plate is fixed on the weir body, the weir plate is an arc-shaped plate, the upper end of the weir plate is tangent to the water inlet flow direction of an upstream water body, and the lower end of the weir plate extends below the water surface of a downstream water body; and the perforation rate of the weir plate is gradually increased along the water flow direction. The water inlet weir structure can effectively reduce water drop reoxygenation, reduce the adding amount of a carbon source, realize uniform water distribution and improve the denitrification efficiency.

This utility model relates to the field of check valve technology, specifically a check valve type sealing element, including a main pipe, an inlet end, and an outlet end. A check mechanism is provided on the main pipe, comprising: a protective cover fixedly connected to the main pipe; a return spring on the main pipe, one end of which is fixedly connected to the main pipe, and the other end of which is fixedly connected to a connecting plate; a connecting rod fixedly connected to the connecting plate; and a check plate fixedly connected to the end of the connecting rod away from the connecting plate. The connecting rod is connected to a piston in the main pipe. This utility model incorporates a buffer mechanism. When the water flow is interrupted, a water hammer effect occurs, causing a sudden pressure change in the main pipe. Under pressure, the sealing block moves into the sealed hollow tube, compressing the storage spring. The storage spring absorbs some of the pressure energy, preventing excessive pressure from directly acting on the main pipe and the sealing element, thus mitigating damage caused by the water hammer effect.