83results about How to "Reduce water impact" patented technology

The invention discloses a device and method for guiding fishes to sail upstream. The device comprises a water power device and a plurality of inverted T-shaped water supply units. The inverted T-shaped water supply units are composed of main water supply pipes and branch pipes. A water pump is connected with the inverted T-shaped water supply units, each branch pipe is provided with a plurality of spouts, and each spout is provided with a nozzle. Each inverted T-shaped water supply units contains more than two nozzles, radiation rays led out through the nozzles in each unit are approximately intersected at one point, connecting lines of the point with any two nozzles form acute triangles with connection lines between the two nozzles, submerged jet streams of the nozzles of any unit are superimposed to form a superimposed jet stream, and the superimposed jet streams of the unit nozzles are superimposed end to end for form a jet stream flow channel. The problems that the fishes in favor of sailing upstream in flowing water have no attracting stream flow to guide to sail upstream in static or low velocity areas in a high dam reservoir are solved; multiple sprout jet streams of a pipe network are adopted to guide the fishes to sail upstream, so that the fishes having spawning behavior by sailing upstream are prevented from failing to pass the wide ranges of static or low velocity areas due to changes in hydrological conditions in a water conservancy project.

The invention discloses a sand washing method, which comprises following steps: sand filling, washing, or / and pickling or / and alkali washing, deionized water cleaning, sand storage and the like. The invention further discloses a special device for the sand washing method. The sand washing device comprises a sand column tube and a water tank, the sand column tube is divided into a water inlet buffering area, a sand column area and an overflow area according to a water flowing direction, the water inlet buffering area is separated from the sand column area via four water distribution caps which are annularly uniformly distributed, a cylindrical buffering device is mounted on the water inlet buffering area, an inner cylinder of the cylindrical buffering device is in through connection with a water outlet of the water tank via a water delivery pipe, the overflowing area is provided with an overflowing pipe, a water outlet of the overflowing pipe is suspended above a liquid inlet of the water tank, and a filtering screen is mounted at the liquid inlet of the water tank. By the aid of organic combination of the deionized water cleaning, the pickling and the alkali washing to sand, metal ions, colloid particles, microorganisms and other impurities in the sand are effectively removed.

The invention discloses a seedling raising device. The seedling raising device comprises a control box, an air conveying pipe and a seedling raising box which are sequentially arranged in a box body from top to bottom, the control box internally comprises a blower, a heating chamber and an electric control box, the air conveying pipe is provided with a plurality of fork-shaped air supplying holes,the seedling raising box is sequentially and internally provided with a water supplying pipe, a culture medium layer, a clapboard and a water tank from top to bottom, the water supplying pipe is provided with a plurality of spherical sprayers, a clamping groove is movably connected with the clapboard, one side of the water tank is connected with a water pump, the water pump is communicated with the water supplying pipe, and the top of the seedling raising box is provided with a plurality of incandescent lamps. According to the seedling raising device, the seedling raising chamber can providea suitable growth environment for seedlings, the growth of the seedlings is promoted, the damage to the rhizome when the seedlings are transplanted can be reduced at the same time, and the survival rate of the seedlings is greatly increased.

A method for culturing the spiny sea cucumber in the estuarine region features that the inner slope of its dam is covered by non-woven cloth, the water depth in the pond in controlled to be 1.5-3 m in the spring and autumn, or 2.5-3 m in the summer, and the O2 is filled in the water via the hole on ice layer in the winter, while the surficial fresh water is exchanged by seawater.

The invention discloses a cross-medium aircraft. The aircraft comprises an aircraft body, hydrofoils are connected to the aircraft body through a storage mechanism, main wings are connected to the aircraft body through a discarding mechanism, a water inlet and an air inlet are further formed in the aircraft body, an air nozzle and a water nozzle are further formed in the tail end of the aircraft body, the air inlet communicates with the air nozzle through an air channel, and the water inlet communicates with the water nozzle through a water channel; a tail vane is also connected on the rear end of the aircraft body; the aircraft is additionally provided with the main wings to provide lifting force for aerial working conditions, and the main wings are upper single wings to reduce water entry impact. The attack angle of the main wings is changed by adjusting pitching of the aircraft so as to achieve the purpose of adjusting the lifting force of the main wing. An overwater / underwater cross-medium engine technology is adopted, and an air spraying port and a water spraying port are formed in the tail end to be matched with a propelling mode of air spraying and underwater water spraying.Retractable hydrofoils are additionally arranged on the front portion of the aircraft and used for providing enough lifting force in the take-off process, and the hydrofoils are retracted under the stable operation condition to reduce navigation resistance. When the aircraft is attacked in water, the main wings are discarded, the navigation resistance is reduced, and the navigation speed is increased.

The invention discloses a water-permeable spur dike capable of adjusting the angle with a river bank. The water-permeable spur dike comprises a steel plate pile vertically arranged on one side of a riverway. A groove is vertically formed in the middle of the front side of the steel plate pile. A cuboid dike boy is vertically arranged at the position, on the front side of the groove, in the riverway. The dike body comprises a main dike body and an auxiliary dike body arranged in front of the main dike body to serve as an upstream face. A traction ring is transversely arranged at the lower position of the middle of the offshore face of the dike body. A steel twisted rope is fixed to the traction ring. The nearshore face of the dike body and the groove of the steel plate pile are hinged and fixed together through a hinge. The other end of the steel twisted rope is connected with a traction mechanism on the river bank. According to the water-permeable spur dike, the included angle betweenthe dike body and the river bank according to the requirement of the actual fairway depth, the size of water passing holes of the dike body can be controlled by changing the position of the auxiliarydike body, and therefore the flow speed of water flow is reduced stage by stage when water flow passes through a water-permeable spur dike group.

The invention discloses a water flow type water body purification and oxygenation device. The water flow type water body purification and oxygenation device comprises an ozone generator, a gas inlet pipe, a high-pressure water pump, a high-pressure nozzle and a water guide pipe, wherein a water outlet of the high-pressure water pump is communicated with the high-pressure nozzle in a sealed manner; a water outlet of the high-pressure nozzle is connected with the water guide pipe; a water reflowing convection hole is formed by a gap between the periphery of the water outlet of the high-pressure nozzle and a peripheral wall of the water guide pipe; the ozone generator is communicated with the high-pressure nozzle in the sealed manner through the gas inlet pipe; and the high-pressure nozzle is a cone and the cross section area of the water outlet is smaller than that of a water inlet. Negative pressure is generated by utilizing natural water flow and ozone and air are sucked in; the ozone, the air and water are atomized and sprayed out toward the periphery through a high-pressure water sprayer and a large reflowing process is formed by the whole body of a pond; and dissolved oxygen completely permeates each dead angle to form three-dimensional oxygenation and the sterilization and oxygenation effect of a water body is improved.

The invention relates to the technical field of sewage treatment, and discloses a split-flow sewage treatment equipment with a buffer function, which includes a casing, a water inlet is opened on the top of the casing, and a connecting rod is fixedly connected to the inner wall of the casing. Both the front and the back of the housing are fixedly connected with bearings, and a rotating rod is fixedly connected between the inner rings of the two bearings. The surface of the rotating rod is sleeved with a shunt roller, and the bottom of the shunt roller is in contact with the connecting rod. The inner wall of the casing is symmetrically provided with a splitter plate with the vertical center line of the casing as the center of symmetry, and the top of the splitter plate has a hole. The split-flow sewage treatment equipment with buffer function has a simple structure and is easy to use. It divides the sewage flow into and out of the treatment, which greatly improves the efficiency of sewage treatment, and can also minimize the impact of sewage water flow. Because the impact force is too large to cause damage to the equipment, the sewage treatment machine works more stably.

The invention discloses a green belt water-saving automatic irrigation and drainage system. The green belt water-saving automatic irrigation and drainage system comprises a water storage tank, a lotusleaf imitation type rainwater collecting piece, a water pump, a water pumping pipe, a water supply pipe, a water storage and delivery pipe, an external water source connecting pipe, a four-way pipe,an irrigation water pipe, a permeation water pipe, a spraying pipe, a dandelion imitation type water spraying piece and a control assembly. The control assembly is arranged on the side wall of the water storage box; the water pump is arranged on the upper wall of the control assembly; the water pumping pipe is arranged at the input end of the water pump; the water supply pipe is arranged at the output end of the water pump; the four-way pipe is arranged at the end, away from the water pump, of the water supply pipe; and four ports of the four-way pipe are connected with the water supply pipe,the irrigation water pipe, the water storage and conveying pipe and the external water source connecting pipe. The invention belongs to the technical field of greening, and particularly provides the green belt water-saving automatic irrigation and drainage system which is high in attractiveness and capable of saving water resources and replacing large-flow water flow spraying with slow permeation,and micropore permeation and trickle spraying are combined.

The invention discloses an efficient cultivation method for tropical juvenile holothuroidea. According to the technical scheme, by setting the reasonable cultivation density, automatically and fully stirring floating water through an air pump, improving larva metamorphosis attachment efficiency through multiple methods and reasonably feeding bait without living algae, the water body is stabilized, and the invention discloses the cultivation method for the tropical juvenile holothuroidea. The efficient cultivation method has the beneficial effects that the air pump is used for automatically and fully stirring the floating water body, so that the manpower consumption is greatly reduced, and the survival rate of the floating larvae is increased more simply and more conveniently. On the premise of guaranteeing high cultivation efficiency, bait without living algae is fed, operation is simplified, energy consumption is reduced, the risk of diseases and insect pests brought into living algae is effectively prevented, the water body does not need to be replaced in the early stage, controllability is obviously enhanced, the cultivation efficiency of the tropical holothuroidea is remarkably improved, and a solid technical foundation is provided for realizing large-scale culture of tropical holothuroidea new varieties and sustainable development and utilization of tropical holothuroidea resources.

The invention discloses a method and device for assisting the construction of an underwater open caisson. Water flow is divided by using a flow dividing structure capable of performing flow dividing on water, and the open caisson is installed behind the flow dividing structure, wherein a V-shaped curtain formed by connecting two plate-shaped structures is included. The method and device for assisting the construction of the underwater open caisson have the beneficial effects that the flow field characteristics of the water flow in an open caisson area can be changed by utilizing the flow dividing structure, the water flow speed is reduced, the water flow impact force on the open caisson in the process of the open caisson can be reduced, the reduction of resistance in the process of the open caisson is facilitated, then the scale of an open caisson positioning device is reduced, the positioning accuracy of the open caisson is improved, the efficiency of construction of open caisson positioning is improved, and the risk of the open caisson construction is reduced significantly.

The invention relates to the field of machining of metal sheets, in particular to a metal sheet pickling device. The device comprises a pickling water tank, an injection component arranged in the pickling water tank and used for performing injection pickling on the both side surfaces of a metal sheet, a top spray component arranged above the pickling water tank and a discharging component arrangedat the downstream end of the pickling water tank. A guide plate allowing the bottom of the metal sheet to be capable of sliding towards the discharging component is arranged in the pickling water tank. A feeding component is arranged at the upstream end of the pickling water tank. A plurality of hollow bearing columns are arranged under the pickling water tank. The injection component comprises two flushing parts arranged on two sides inside the pickling water tank correspondingly. The injection ends of the two flushing parts are arranged oppositely, and angles of 130 degrees are formed between the injection direction of the two flushing parts and the sliding direction of the metal sheet. A discharging manipulator and a discharging electric cylinder are arranged at the downstream end of the pickling water tank. According to the metal sheet pickling device, injection pickling can be performed on the outer surface of the metal sheet comprehensively, no dead corner is present in the injection process, and quality requirements are also met on the premise that the output is increased.

The invention belongs to the field of electric appliance control, and relates to a pump motor shutdown idling hybrid control loop. The electric appliance control loop is mainly composed of a pump motor, a main circuit, a control circuit and a speed relay. During a pump motor shutdown operation process, through controlling the rotation speed and the time of the pump, wiring of the main circuit and a resistor adding mode are adjusted, the purpose of prolonging the shutdown time is achieved, water flow impact caused due to water flow inertia is reduced, the pump loop operation stability is improved, and the purpose of prolonging the service life of the pump and the service life of a related part is achieved.

The invention discloses a multi-component seabed magnetic field measurement method and device, and the device comprises a ship body and a satellite receiver, the ship body is provided with a radar and a retracting and releasing assembly, the retracting and releasing assembly is connected with a buoyancy assembly through a connecting rope, the buoyancy assembly comprises a buoyancy cabin, and an instrument cabin is connected below the buoyancy assembly. An electromagnetic instrument is installed in the instrument cabin through a hydraulic rod and a connecting plate, an adjusting frame assembly is fixedly arranged at the bottom of the instrument cabin and comprises a frame body and an adjusting assembly, the frame body is hinged to the adjusting assembly through an adjusting rod, a balance weight bin is arranged at the bottom of the adjusting frame assembly, and the balance weight bin is connected with the adjusting assembly. The balance weight bin is filled with part of gravel, adjusting plates are arranged on the two sides of the outer wall of the balance weight bin, the instrument bin hovers at a certain depth in water by controlling the folding and unfolding assembly and the adjusting assemblies, and therefore water depth range data are collected and transmitted to a land control room through the satellite receiver.

The invention discloses a classified selection fishway device capable of manually intervening in natural water flow acceleration for impact prevention. The fishway device comprises a device body, supporting edge side frames are fixedly connected to the outer side of the device body, and a water level baffle frame and a supporting device with the front layer and the rear layer separately designed are arranged between the supporting edge side frames, so that the fishway device is more stable in fixing and positioning. A manual intervention vortex flow generation device on the front side can enable the device and a fishway isolation plate on the rear side not to interfere with each other, and a translation sliding rail is arranged above the front side of the water level baffle frame. The invention relates to the technical field of fishery. According to the classified selection fishway device capable of manually intervening in natural water flow acceleration for impact prevention, the problems that time and labor are wasted and normal operation of a fishway is easily affected due to the fact that fishes need to be lifted out of the fishway are solved, and a vortex device adopts the design that both the transverse direction and the longitudinal direction are adjustable and can cope with water flows of different water levels. The manual intervention vortex flow generation device on the front side can prevent the device from interfering with the fishway isolation plate on the rear side.

The invention discloses a water box of a washing machine and the washing machine. The washing machine includes a water suction pump for sucking an outer water source into a washing barrel of the washing machine. The water box includes a flowing channel allocation chamber; the flowing channel allocation chamber has a first flowing channel for leading water to a chamber of the water suction pump. The water box can receive washing water provided by different water feeding paths; a main water inlet and the water suction pump are connected in parallel through flowing channels formed in the flowingchannel allocation chamber, and a water supplying and leading function of a chamber of the water suction pump can be achieved without independently arranging a water inlet valve on the water suction pump; the water supplying and leading inlet valve for allowing the water suction pump to start pump priming can be omitted, and the washing machine has less parts than the conventional washing machineswith the water suction pumps, is low in cost, and is small in size; the washing machine can conveniently use other water sources such as bath water as washing water of the washing machine through thewater suction pump, and a water saving effect can be achieved.

The invention discloses a wharf pile foundation scouring protection device which comprises a flow stopping protection mechanism, a protection cylinder mechanism, multiple buffering slopes and multipleflow stopping assemblies. The flow stopping protection mechanism comprises a fixing ring, a reinforcing ring and multiple connecting plates, wherein the fixing ring, the reinforcing ring and the connecting plates are arranged coaxially. The protection cylinder mechanism comprises a first protection cylinder, a second protection cylinder and multiple flexible buffering plates. The tops of cylinderbodies are closed. Multiple first through holes and multiple second through holes are formed in the surface of the first protection cylinder and the surface of the second protection cylinder correspondingly. The multiple buffering slopes are arranged uniformly in the radial direction of a pile foundation in a dispersing manner. Each flow stopping assembly comprises a pair of guide plates arrangedon the connecting plates, sliding grooves in the middle portions of the guide plates, multiple reset springs, multiple buffering blocks, flow stopping rods arranged in the sliding grooves in a sliding and penetrating manner, and limiting nuts arranged at the two ends of the flow stopping rods in a sleeving manner. The protection cylinder mechanism, the buffering slopes and the flow stopping assemblies are arranged in the radial direction of the pile foundation from inside to outside. The scouring protection device has the beneficial effects that energy of water flow is dissipated, scouring ofthe water flow to the pile foundation is reduced, the pile foundation is protected, and the stability of the pile foundation is improved.

The invention discloses a collection device, system and method for gravel-cobble conveying pressure and conveying audio frequency. The collection device comprises an upper baffle, a lower baffle and a shield which is arranged between the two baffles and used for preventing the impact of gravels, cobbles and sand-laden water, wherein a cavity is defined by the upper baffle, the lower baffle and the shield; the interior of the cavity is fixedly provided with pickups for collecting the gravel-cobble conveying audio frequency, and multiple strain-type sensors for collecting the gravel-cobble pressure borne by the upper baffle and the lower baffle in the process of conveying the gravels and cobbles, wherein the pickups are fixedly arranged on the upper baffle or the lower baffle, and the strain-type sensors are fixedly arranged between the upper baffle and the lower baffle. The collection system comprises a plurality of collection devices arranged on a river bed, a base station arranged on a shore, and a server in a communication connection with the base station, wherein the collection devices are in a communication connection with the base station. Regardless of a high or low flow speed and a large or small quantity of gravel-cobble conveying, the collection devices and the collection system can monitor the gravel-cobble movement accurately for a long time.

The invention belongs to the field of sea farming and discloses a free-combined-type artificial fish reef. The free-combined-type artificial fish reef comprises a base unit, a plurality of first reefsand a plurality of second reefs, wherein the first reefs and the second reefs not only have identical first and second inner side plates, but also have identical first and second undersized fish sparing parts, the first and second reefs are detachably arranged on the base unit, the second reefs are detachably mounted on the first reefs correspondingly, the first inner side plates have nutrient gathering chambers and a plurality of functional through holes communicating with the nutrient gathering chambers, the first undersized fish sparing part have undersized fish protecting nets and a plurality of undersized fish protecting columns, and the undersized fish protecting columns are arranged in the undersized fish protecting nets.

The invention discloses a flood prevention device which is formed by splicing and combining a plurality of independent flood prevention units. Each flood prevention unit comprises a bottom plate, a support frame, a steel plate, an energy absorption sponge, buffer baffles and buffer stop strips, wherein the energy absorption sponge is paved on the steel plate, the buffer baffles are arranged on theinclined face, opposite to the bottom plate, of the steel plate at an interval, and the buffer stop strips are arranged on the horizontal plane opposite to the bottom plate; and the baffle stop strips are flexible, and each buffer stop strip comprises two carbon fiber meshes, two sponge strips and a plurality of sponge particles. The flood prevention device can effectively reduce the impact forceof water flow; the energy absorption sponges can further reduce the impact force, and especially after a previous flood peak wets the energy absorption sponges and when flood peak water flow coming again meets with the wetted energy absorption sponges, the impact force can be obviously reduced; besides, the weight of the energy absorption sponges is greatly increased, the water resistance of theflood prevention device is higher, and the bottom plates are not easy to move when the downward pressure borne by the bottom plates is increased; and during installation, the weight of the energy absorption sponges is low when water is not absorbed, and the flood prevention device is convenient to carry.

The invention discloses a water flow impact buffering device and belongs to the technical field of water conservancy equipment tools. The water flow impact buffering device comprises a connection pipe, wherein the tail end of the connection pipe is connected with a buffering device by a connection rod; the surface, accepting the flow impact, of the buffering device is provided with a soft matter with greater friction force. The water flow impact buffering device has a simple structure and a reasonable design; the water flow impact force is weakened by using the effect of buffering and wearing the soft matters, so that crops are protected and the economic losses are alleviated.

The invention discloses a wear-resistant environment-friendly PVC pipe which comprises a first pipe body and a second pipe body. External threads are engraved in the outer surfaces of the left portions of the first pipe body and the second pipe body correspondingly. Connecting devices are fixedly arranged at the right end of the first pipe body and the right end of the second pipe body correspondingly. The first pipe body is in threaded connection with the second pipe body through the connecting devices. Fixing devices are fixedly installed at the left portions and the right portions of the outer surfaces of the first pipe body and the second pipe body correspondingly. The fixing devices are located between the external threads and the connecting devices. According to the wear-resistant environment-friendly PVC pipe, through the threaded connection of the pipe bodies, the pipe bodies can be connected and disconnected; when the pipe bodies are damaged, the oriented cleanup of the damaged pipe bodies can be carried out, and the whole pipe is prevented from being replaced; by means of a plurality of down-flow stripes and sound insulation layers in the pipe, the water flow impact can be reduced, noise pollution is reduced, the pipe bodies are protected, and the pipe is more environmentally friendly; and thus, the pipe can work under the environments of high temperature, low temperature and high pressure and is suitable for being installed in different environments.

The invention discloses modular artificial wetland integrated equipment which comprises a carbon steel basin body, wherein a water feeding canal and a sewage collection basin are arranged in the carbon steel basin body; a submerged guide plate is arranged in the water feeding canal; a water feeding pipe and a water feeding valve are arranged on the front side of the water feeding canal; a ventilation type straight-flow sewage pipe is arranged at the side end of the water feeding canal; an L-shaped sludge guide pipe is arranged at the lower end of the ventilation type straight-flow sewage pipe;a central inversely trapezoid closed guide canal is arranged at the upper end of the ventilation type straight-flow sewage pipe. The carbon steel basin body of the modular artificial wetland integrated equipment is formed by refining in an oxyacetylene welding machining way, and can be filled instantly, so that the cost is reduced, and the construction period is shortened; according to the design, a vertical ventilation pipe and a sawtooth-shaped slender water discharging hole can prevent blockage; the water feeding canal is divided into three sections, so that the water feeding flow rate isdecreased, and the effluent quality is guaranteed; the overall labor cost is low, the construction period is short, blockage is difficult to occur, and the effluent quality is high.

The invention discloses a reusable cultivation device for adhesion of aquatic organisms. The device comprises a supporting frame and a plurality of adhering pipes, wherein the supporting frame is fixed to a water body bearing object, and the adhering pipes are installed on the supporting frame and immerged under water surface. Protrusions and grooves for adhesion of organisms are formed in the inner wall of each adhering pipe, and the adhering pipes are made from rubber. According to the reusable cultivation device for adhesion of aquatic organisms, water flow impacts are reduced by means of the protrusions and the grooves, habitats are provided for organisms, and the four adhering pipes in different directions are beneficial for the water body to flow through in multiple directions, so that the purpose of aggregation and adhesion of organisms is quickly achieved; the adhering pipes are made from rubber, and when it is necessary to take down the organisms, each adhering pipe can be turned inside out to directly expose the inner wall, so that the purpose of organism collection is achieved; as it is easy to clean the adhering pipes by turning the insides out, reutilization is achieved. The reusable cultivation device for adhesion of aquatic organisms is used in the field of biological culture.

The invention discloses a feralization device for salmon fries, and relates to a fish fry feralization device. A telescopic fry tank is composed of an outer cylinder and an inner cylinder which are sleeved to each other, wherein fish fry placement openings are formed in the outer cylinder and the inner cylinder; the fish fry placement opening of the outer cylinder is hinged with a cover plate; a first thread through hole is respectively formed in two side walls of the outer cylinder; first fastening bolts are respectively connected in the two first thread through holes in a spinning manner; the outer cylinder is fixedly connected with the inner cylinder through the first fastening bolts; two telescopic support legs are respectively fixed at lower ends of the outer cylinder and the inner cylinder; a second insertion groove is formed in a position of a top wall of the inner cylinder close to an outer side end; a plugging frame is inserted in the second insertion groove; a piece of dense-hole mesh cloth is fixed in the plugging frame; a water flow adjusting valve plate and the other piece of dense-hole mesh cloth are vertically fixed at a position of the outer cylinder close to the outer side end; the water flow adjusting valve plate is located outside the other piece of dense-hole mesh cloth; an artificial stone cushion layer is pasted and laid on the inner bottom of the inner cylinder. The feralization device is convenient to adjust length and levelness of the telescopic fry tank, also can control water flow, and is simple and practical.

The invention discloses a trestle-free overwater bridge pile foundation and bearing platform construction method. The construction method adopts a cofferdam and floating bridge combined mode to realize trestle-free construction operation, the cofferdam encloses a construction area in water, and pile foundation and bearing platform construction is carried out in the construction area; the cofferdamis of a rhombus structure, so that water flow impact force borne by the whole cofferdam is smaller, a cofferdam and floating bridge combined mode is adopted to replace a traditional cofferdam and trestle combined mode for construction, and compared with a trestle, the floating bridge is convenient to assemble and disassemble, lower in manufacturing cost and capable of being repeatedly used.

The invention discloses an efficient cultivation method of tropical sea cucumber seedlings. The technical scheme of the present invention stabilizes the water body by setting a reasonable breeding density, using an air pump to automatically and fully agitate the floating water body, using various methods to improve the efficiency of larval metamorphic attachment, and rationally feeding bait without live algae, and discloses a breeding method for tropical sea cucumbers The beneficial effects obtained by the invention are: the use of the air pump to automatically and fully stir the planktonic water body greatly reduces manpower consumption, and improves the survival rate of planktonic larvae in a simpler and more efficient manner. Under the premise of ensuring high cultivation efficiency, the present invention feeds non-living algae bait, which simplifies operation, reduces energy consumption, effectively prevents the risk of diseases and insect pests brought in by live algae, does not need to replace water bodies in the early stage, and is controllable The breeding efficiency of tropical sea cucumbers has been significantly improved, which provides a solid technical foundation for the realization of large-scale breeding of new varieties of tropical sea cucumbers and the sustainable development and utilization of tropical sea cucumbers.

The invention provides an energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes, which relates to the technical field of new energy power generation. The energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes comprises a fixing plate, a sealing shell is fixedly mounted at the top of the fixing plate, a mounting cavity is formed in the sealing shell, and a storage battery pack is fixedly mounted on the left side of the interior of the mounting cavity; and a control panel is fixedly mounted on the right side of the interior of the mounting cavity. According to the energy-saving and environment-friendly hydroelectric power generation water flow velocity detection device suitable for rivers and lakes, dual power generation is achieved through light energy and water power to be supplied to the device for use, the characteristics of energy saving and environment protection are embodied, a plurality of protection structures are arranged, detection equipment can be protected to the maximum degree in water, and moving, detection, power supply and information transmission are automatically conducted; manual multi-time measurement and detection are not needed, the detection accuracy is high, more time and labor are saved, and the detection efficiency is improved.

The invention discloses a comprehensive treatment method for a low-liquid-limit silt roadbed. The comprehensive treatment method is specifically implemented according to the following steps that 1, a pebble bed is replaced and filled; 2, a geotextile impermeable layer is arranged on the pebble bed in the step 1; 3, a silty soil embankment is arranged on the geotechnical cloth impermeable layer in the step 2, a pebble slope toe and a cement soil layer are arranged at the slope toe of the silty soil embankment, and the silty soil embankment is wrapped by geotechnical cloth; 4, a cement soil area is arranged on the silty soil embankment in the step 3; and step 5, arranging a road surface and a road shoulder on the cement soil area in the step 4. According to the comprehensive treatment method for the low-liquid-limit silt roadbed, the problem of treatment of the liquid-limit silt roadbed is solved.