825results about How to "Avoid erosion" patented technology

The invention provides a high-temperature-resistant carbon fiber reinforced phenolic resin composite material and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out high-temperature oxidation treatment on carbon fibers; secondly, carrying out surface modification on the carbon fibers by using a chemical modifier; then mixing the modified carbon fiber, an antioxidant and a dispersing agent to prepare slurry; performing vacuum filtration on the prepared slurry, and drying to obtain a carbon fiber blank; preparing a phenolic resin infiltration solution, and impregnating the carbon fiber blank with the phenolic resin infiltration solution; and finally, carrying out mold pressing and curing to obtain the high-temperature-resistant carbon fiber reinforced phenolic resin composite The preparation method is simple in required equipment, convenient to operate, stable in process, high in production efficiency and suitable for large-scale industrial production. According to the high-temperature-resistant carbon fiber reinforced phenolic resin composite material prepared by the preparation method, the bonding property between the carbon fiber and the phenolic resin is improved, certain toughness and strength are provided, and meanwhile, the high-temperature-resistant carbon fiber reinforced phenolic resin composite material has the advantages of ablation resistance, good oxidation resistance in a high-temperature environment and the like.

The invention belongs to the technical field of materials, and particularly relates to a modified TB polymer, a preparation method and application of the modified TB polymer in an aluminum alloy surface coating. The prepared modified TB polymer has a structure as shown in a formula I, is used as a flexibilizer component in an aluminum alloy surface coating, can provide a large number of hydrophilic hydroxyl or carboxyl groups which are easily subjected to an activation reaction with a metal surface, and improves the adhesive force of the coating; meanwhile, the group can also improve the dispersity of the filler, so that the coating is more uniform, the stress effect of the coating can be improved, and the coating has better flexibility. In addition, a modified TB polymer is introduced into the coating, so that the prepared coating is green and environment-friendly, excellent in salt fog resistance and chemical corrosion resistance, capable of adapting to a complex marine environment, capable of well protecting metal materials and capable of prolonging the service life of the metal materials. And # imgabs0 # I is adopted.

The invention belongs to the technical field of materials, and discloses mildew-proof modified starch-based super absorbent resin as well as a preparation method and application thereof. The mildew-proof modified starch-based super absorbent resin is prepared from the following raw materials in parts by mass: 10 to 20 parts of modified carboxymethyl starch, 2 to 3 parts of quaternized carboxymethyl chitosan, 10 to 15 parts of 2-acrylamido-2-methylpropanesulfonic acid, 15 to 25 parts of acrylamide, 100 parts of acrylic acid, 0.4 to 0.7 part of a redox initiator and 0.05 to 0.15 part of a cross-linking agent. According to the invention, the inherent defects of low mechanical strength, poor salt tolerance, poor stability, easy decomposition, short service life and the like of the starch-based resin are obviously improved, so that the starch-based super absorbent resin with good mildew resistance and more excellent performance can be developed.

The utility model relates to the technical field of valves, and discloses a combination valve which comprises a connecting pipe, an air inlet pipe is arranged at the bottom of the connecting pipe in a communicated mode, a sleeve is arranged at the top of the connecting pipe in a communicated mode, an air outlet pipe is arranged at the top of the sleeve in a communicated mode, and a pressure relief mechanism is fixedly installed in the sleeve. The pressure relief mechanism comprises a sealing cylinder, a mounting plate is fixedly mounted on the outer wall of the sealing cylinder, the mounting plate is fixedly mounted on the inner wall of the sleeve, a lifting column is slidably arranged on the inner wall of the sealing cylinder, a first pressing plate is fixedly mounted at the bottom end of the lifting column, and a rectangular rod moves upwards or downwards by rotating a lead screw; according to the pressure relief device, the first spring is driven to move upwards or downwards to drive the pushing plate to move upwards or downwards, so that the pushing plate compresses the first spring to different degrees, the force of the first spring pressing the first pressing plate is changed, the set pressure relief pressure threshold value is adjusted, the first spring can be protected through the sealing cylinder, and the first spring is prevented from being eroded by corrosive fluid.

The high-altitude fire spraying type orchard frost prevention machine comprises a fire spraying cylinder, the fire spraying cylinder is rotationally installed in a frame through two rotating connecting pieces, a swing assembly is arranged between the frame and the fire spraying cylinder, a rotating assembly is arranged at the bottom of the frame, an integrated seat is fixedly installed between fixing pieces, and the integrated seat is fixedly connected with the frame. A combustion cylinder is fixedly mounted on the integrated seat, and an igniter and a nozzle are integrally mounted on the integrated seat; the damp-proof assembly is additionally arranged on one side of the air blowing assembly and comprises a sliding way fixedly installed at the top of the fire spraying barrel, a sliding seat is slidably installed in the sliding way, a rotating seat is fixed to the sliding seat, a rotating head is rotatably installed in the rotating seat, the rotating head is connected with the rotating position of the rotating seat through a torsional spring, and a cover body is fixed to one side of the rotating head. And the cover body is used for blocking one side of the flaming barrel, and can prevent rainwater, dust, leaves and the like from entering the flaming barrel when not in use, so that the air blowing assembly is prevented from being eroded, and a very good protection effect is achieved.

The invention relates to the technical field of composite plastic wood, and discloses an environment-friendly composite plastic wood plate and a preparation method thereof.The environment-friendly composite plastic wood plate is prepared from bamboo powder, poly (butylene adipate-co-terephthalate), polylactic acid, a compatilizer, filler, a lubricant, functional fibers and a composite additive, the functional fibers are added, so that the prepared environment-friendly plastic-wood plate has excellent mechanical properties and antibacterial properties, and the situation that the composite plastic-wood plate is eroded by bacteria and molds, and the appearance and the performance of the composite plastic-wood plate are affected badly can be avoided; by adding the composite additive, the prepared environment-friendly plastic-wood plate has excellent impact resistance and ultraviolet resistance, energy can be better absorbed and dispersed when the environment-friendly plastic-wood plate is impacted by external force, and the situation that the service life of the composite plastic-wood plate is shortened due to ultraviolet irradiation in the long-term use process is avoided.

The window frame with the hidden bottom drainage device comprises a window frame body and the drainage device, an installation opening is formed in the bottom of the window frame body, the drainage device is embedded in the installation opening in the window frame body, and the drainage device comprises an outer cover, a drainage groove and a filtering piece. One end of the filter part is hinged to the inner wall of the middle of the drainage tank and is arranged as a filter part hinged end, the other end of the filter part is not in contact with the inner wall of the middle of the drainage tank and is arranged as a filter part swing end, and a filter part reset mechanism is arranged between the inner wall of the middle of the drainage tank and the filter part hinged end of the filter part. In order to dredge a drainage device at the bottom of the window frame on the premise that the window frame is not detached, the outer cover and the drainage groove are designed to be separated, so that personnel can detach the outer cover from the outside of the window frame, and the filtering piece is hinged in the drainage groove, and the filtering piece resetting mechanism is mounted between the filtering piece and the drainage groove, so that the filtering piece can be conveniently detached. The swinging end of the filtering piece can be pulled by a hand and swings by 90 degrees, so that sludge impurities blocked in the drainage groove are cleaned out of a drainage opening of the drainage groove, and the problem that a window frame needs to be disassembled before desilting in the prior art is solved.

The invention relates to the field of saline-alkali land management, and specifically discloses an irrigation device for saline-alkali land management, comprising: a main water pipe mechanism, comprising a main water pipe assembly, and a branch pipe arranged on the main water pipe assembly; a water supply pipe mechanism, comprising a water supply pipe assembly interconnected with the branch pipe, and an extension pipe assembly installed on the water supply pipe assembly; the water supply pipe assembly comprises a connecting hose, one end of which is fixedly connected with an external joint; the invention can adapt to the irrigation needs of saline-alkali land of different sizes and shapes through the flexible connection of multiple sections of main water pipe assemblies, and ensure that water is stably and efficiently transported to each irrigation point; the arrangement of the water supply pipe assembly and the extension pipe assembly is not only convenient for installation and position adjustment, but also can effectively surround saplings to achieve precise irrigation; the arrangement of the positioning rod enables the irrigation device to be firmly inserted into the soil to avoid displacement or separation during the irrigation process.

The invention discloses a lithium ion battery compound fire extinguishing agent and a preparation method and application thereof, and belongs to the technical field of lithium ion battery fire extinguishing agents. The fire extinguishing agent comprises the following raw materials in parts by weight: 10-50 parts of perfluorohexanone, 20-80 parts of hexafluoropropylene tripolymer and 1-3 parts of preservative. The compound fire extinguishing agent has the beneficial effects of efficient fire extinguishing capacity, excellent cooling efficiency, good corrosion resistance, stability, wide applicability and the like, in the fire extinguishing process, the fluorocarbon organic solvent can rapidly evaporate and absorb a large amount of heat, the temperature of a fire source is remarkably reduced, and therefore fire spreading is further inhibited. And the cooling efficiency can be accurately controlled by regulating and controlling the ratio of different solvents, so that the fire extinguishing requirements of different occasions are met, and powerful support is provided for development and application of the fire extinguishing technology.

The invention provides an electrostatic chuck and a manufacturing method thereof, and the electrostatic chuck comprises a metal base which is internally provided with a plurality of gas channels and lifting channels; the ceramic cover is arranged on the metal base in a covering manner; the bonding layer is arranged between the metal base and the ceramic cover and is used for connecting the ceramic cover and the metal base; the ceramic cover comprises a ceramic plate which is located above the metal base, and a gas sleeve and a lifting sleeve which penetrate through the upper surface and the lower surface of the ceramic plate are arranged on the ceramic plate. The gas sleeve penetrates through the joint layer and is communicated with the gas channel; the lifting sleeve penetrates through the joint layer and is communicated with the lifting channel; and the upper part of the ceramic ring is connected with the circumferential edge of the ceramic disc, and the lower part of the ceramic ring is arranged in the circumferential directions of the joint layer and the metal base in a surrounding and sleeving manner and covers the side walls of the joint layer and the metal base, so that plasma is effectively prevented from corroding the joint layer and the metal base from the side surface, and the service life of the electrostatic chuck is prolonged.

The invention discloses a method and device for solving casting bleed-out of a nitrogen-containing cobalt-chromium-molybdenum mother alloy bar, and the method comprises the following steps: pressing operation: driving a lower pressing roller to perform fixed-axis rotation on the inner wall of a rectangular through groove through a motor, so that an upper pressing roller and a lower pressing roller synchronously roll an aluminum silicate felt, and the density of the aluminum silicate felt is increased; cutting operation: an eccentric block is eccentrically placed on a second belt pulley, so that a cutting blade can perform equidistant cutting on the rolled aluminum silicate felt on the surface of the workbench, the accuracy of the size of the mold is ensured, and fixed operation: during cutting, a sleeve rod drives a pressing plate to synchronously move downwards, so that the pressing plate can be stably pressed on the aluminum silicate felt; displacement or deformation of the aluminum silicate felt in the cutting process is avoided, and it is guaranteed that the surface of the cut aluminum silicate felt is smooth.

The ecological slope protection structure for water and soil conservation for water conservancy construction comprises soil retaining plates fixedly supported on slopes on the two sides of a river, planting grooves for planting green plants are formed in the soil retaining plates, a water pumping pipe is fixedly connected, and the outer contour of the water pumping pipe is sleeved with a rectangular shell moving in a reciprocating mode; the rectangular shell is fixedly connected with a spray head and a drainage pipe which is in through connection with the spray head, in addition, a salvage mechanism and a liquid pumping mechanism are further arranged on the soil retaining plate and used for cleaning floating objects on the surface of river water and pumping the river water for irrigation, and the salvage mechanism achieves salvage of the floating objects through matched action of a cylindrical roller and a filter plate; according to the ecological slope protection structure, by means of an automatic irrigation system, the utilization efficiency of water resources is improved, the soil retention capacity is enhanced, plant growth is promoted, water and soil loss is effectively prevented, and the ecological slope protection structure can be applied to the field of ecological slope protection especially under the drought condition. The ecological environment is protected and recovered.

The invention discloses an industrial dust remover convenient to clean, and relates to the technical field of industrial dust removers, the industrial dust remover comprises a box body and a dust removal assembly, and the dust removal assembly is arranged on one side of the box body; the dust removal assembly comprises a mounting groove, a sealing groove, a mounting frame, a sealing plate, a mounting opening, a rotating groove, a rotating plate, a partition plate, a filter bag, a ventilation opening, a ventilation spring, a ventilation plate, a tooth groove, a motor, a driving wheel, a water passing cavity and a cleaning opening, the mounting groove is formed in one side of the box body, the sealing groove is formed in one side of the mounting groove, and the mounting frame is connected into the mounting groove in a clamped mode. A sealing plate is connected to one side of the mounting frame, and mounting openings are formed in the sides, away from each other, of the mounting frame and the sealing plate. In the use process, the filter bags can be subjected to dust removal work in batches, and the filter bags can be conveniently switched, so that the filter bags with the reduced dust removal effect are cleaned, and tail gas after dust removal is used for cleaning and drying the filter bags, so that the cleaning effect of the filter bags is ensured.

The invention discloses a wear-resistant flame-retardant insulated overhead cable, which relates to the technical field of cables and comprises asbestos. A wire core for conducting current is arranged near the center of the asbestos, and a plurality of conductors for transmitting electric energy are arranged inside the asbestos. When the wear-resistant flame-retardant insulated overhead cable is arranged outdoors in a residential area, firstly one of the connecting rings is passed through the outer surface of a mounting ring, and then the cable outer sheath is driven to pass through the mounting ring and is sleeved on the outer surface of the cable, so that two telescopic tubes are both sleeved on the outer surface of the cable, and then the other connecting ring is fixed on the outer surface of the mounting ring, and then the other connecting ring can be moved to the other end of the overhead cable and fixed on the outer surface of the other mounting ring, so that the cable outer sheath is sleeved on the outer surface of the cable to protect the cable, thereby solving the problem of low wear resistance of the overhead cable for residential areas affected by the external environment in the prior art.

The invention discloses an anti-aging and anti-corrosion coating and a preparation method thereof, and relates to the technical field of coatings. When the anti-aging and anti-corrosion coating is prepared, firstly, tetramethyl tetravinyl cyclotetrasiloxane, n-butyllithium and dimethyl-3-chloropropyl chlorosilane react to obtain modified polysiloxane, then 4-vinylpyridine, methyl methacrylate and n-butyl acrylate are copolymerized and then react with the modified polysiloxane, and then bis (4-chlorphenyl) phosphine is grafted to obtain the anti-aging and anti-corrosion coating. Finally, reacting with p-aminodiphenylamine to obtain modified acrylic resin; secondly, enabling the titanium dioxide nanosheet pretreated by 3-aminopropyltrimethoxysilane to react with ester phthalocyanine, and then hydrolyzing to obtain a modified titanium dioxide nanosheet; finally, mixing the modified acrylic resin, the modified titanium dioxide nanosheet, a solvent, a dispersing agent and a defoaming agent to obtain the anti-aging and anti-corrosion coating. The anti-aging and anti-corrosion coating prepared by the invention has excellent anti-aging, anti-corrosion, flame-retardant and antibacterial properties.

The utility model relates to the technical field of water conservancy projects, and discloses a water conservancy flood bank which comprises a bank body, vegetation is arranged on the surface of the bank body, covering cloth is fixedly connected to the bottom of the bank body, a winding mechanism is arranged on the surface of the covering cloth, and a traction mechanism is arranged on the top of the bank body. The traction mechanism is used for moving the winding mechanism, so that the winding mechanism ascends or descends along the surface of the dam body, and the winding mechanism can cover the covering cloth on the surface of the vegetation, so that the vegetation is arranged on the surface of the dam body, soil on the dam body can be consolidated, and water flow erosion is prevented; and through cooperation of the covering cloth, the traction mechanism and the winding mechanism, in rainy days, the winding mechanism can be moved to the top of the dam body through the traction mechanism, so that the covering cloth covers the surface of the vegetation, and the damage effect of water flow scouring on the vegetation is reduced.

The invention relates to a ceramic and metal heterogeneous connection method, which is characterized by comprising the following steps of: 1, covering a metal surface with a metal plating layer; secondly, tungsten slurry or pure molybdenum powder or molybdenum-manganese composite powder is adopted, and a primary metallization layer is formed on the to-be-brazed surface of the ceramic in a high-temperature sintering mode; 3, forming a nickel layer, a nickel-phosphorus layer or a nickel-boron layer, which is called as a secondary metallization layer, with the thickness of less than 20 microns on the surface of the primary metallization layer in a manner of electroplating, evaporation, chemical plating or sintering; 4, attaching a tertiary metallization layer to the surface of the secondary metallization layer in an electroplating manner; fifthly, a ceramic side brazing filler metal layer is formed, and a metal side brazing filler metal layer is formed; and 6, placing a metal middle buffer layer structure in a gap between the ceramic side brazing filler metal layer and the metal side brazing filler metal layer, wherein the main body of the metal middle buffer layer structure is pure nickel, pure copper, pure silver or pure aluminum. According to the method, cracks can be prevented from being generated on the brazing interface, and the sealing performance and the mechanical connection strength of the brazing interface are improved.

The invention relates to the technical field of lawn production, and particularly discloses a light large grass roll industrial production method and production equipment thereof. The light large grass roll industrial production equipment comprises a lawn conveyor and a vehicle frame, the lawn conveyor is installed on the vehicle frame, the top end of the lawn conveyor is guided to an operation table, and a winding roller is installed on the operation table. After a lawn is rolled, the rolled lawn can be clamped through the two side pressing plates, then the rolled lawn is pushed into a wrapping area through the lifting device, a thin film body abuts against the rolled lawn, then the rolled lawn is driven to rotate through the side pressing plates and other components, and therefore the thin film body is wound around the outer side of the rolled lawn; the thin film body is wound on the outer side of a rolled lawn, sandy soil in the lawn wrapped by the thin film body is not prone to falling off in the transportation process, the sandy soil and seeds in the lawn can be prevented from falling into a transportation compartment, and the compartment is prevented from being eroded by the sandy soil rich in the seeds.

The utility model discloses a center rotation type oil storage tank sludge cleaning reduction treatment device and a control system thereof. The center seat is arranged at the geometric center of the bottom of the oil storage tank; the rotating seat is rotationally mounted on the central seat through a rotating mechanism; the swing arm is hinged to the rotating seat through a deflection mechanism; the sludge suction filter head and the hydraulic jet head are arranged on the swing arm and pass through an area range between the central seat and the oil storage tank through deflection of the swing arm and rotation of the rotary seat; one ends of the pumping and draining header pipe and the spraying header pipe are positioned outside the oil storage tank, and the other ends of the pumping and draining header pipe and the spraying header pipe extend to the central seat and are respectively communicated with the sludge pumping filter head and the hydraulic spraying head through a sludge pumping pipe and a hydraulic spraying pipe. Compared with the prior art, the utility model has the beneficial effects that the built-in flushing and suction mode is adopted, so that sediments at the bottom can be effectively removed, and the full coverage of the bottom in the tank can be effectively ensured.

The invention relates to the technical field of control valves for fluid pipelines, in particular to a corrosion-resistant long-acting rotary closing type check valve with a self-checking function, which comprises a valve body, and at least one stage of check valve assembly is arranged in the valve body; the check valve assembly comprises a first support and a second support, a sliding rod is movably connected to the middle of the first support, a valve element is fixedly connected to the sliding rod, a valve port is formed in the valve body, the valve element can close the valve port in a one-way mode, the sliding rod is sleeved with a spring, and the spring deforms when the valve element is far away from the valve port. The check valve assembly further comprises a guide mechanism, the guide mechanism is arranged in the valve body, and the guide mechanism can enable the sliding rod to rotate while sliding relative to the first support. The invention is applied to the field of fluid pipelines for industrial production, aviation ships and urban construction, and can improve the effects of preventing reverse inrush flow and preventing leakage.

The utility model provides a laser coding device, and relates to the technical field of laser coding. The laser coding device is installed on a workbench and comprises a conveying piece arranged on the workbench, the conveying piece is used for conveying qualified products, a support is fixedly connected to the workbench, the support stretches across the conveying piece, a code scanning gun is fixedly connected to the support, a laser coding machine is installed on the workbench, and the laser coding machine is used for coding the qualified products. The laser coding machine is located above the conveying piece, a laser head of the laser coding machine is provided with a protection piece, the laser coding machine is used for coding qualified products, codes completed on the products are recognized in cooperation with a code scanning gun, the phenomena of error codes, missing codes and the like are prevented, meanwhile, the protection piece can protect the laser head of the laser coding machine, and the laser head of the laser coding machine is prevented from being damaged. And when the laser head is not used, the laser head can be shielded, so that the laser head is prevented from being eroded by factors such as dust and moisture in a working environment.

The invention discloses a wide-band-gap perovskite solar cell and a preparation method thereof, and belongs to the technical field of new energy, the method comprises the following steps: 1) spin-coating a NiOx solution on a pretreated substrate, and drying to obtain a NiOx hole transport layer; 2) mixing FAI, CsI, PbBr2 and PbI2, dissolving the mixture in a mixed solution of DMF and DMSO, and then adding 4, 5-dicyanoimidazole to obtain a perovskite precursor solution; the NiOx hole transport layer obtained in the step 1) is coated with a perovskite precursor solution through a two-step spin-coating method, and a perovskite layer is obtained after annealing treatment; and 3) successively preparing an electron transport layer and an electrode layer to obtain the wide-band-gap perovskite solar cell. By providing a 4, 5-dicyanoimidazole additive strategy, the strong coordination effect between 4, 5-dicyanoimidazole and iodide ions effectively inhibits the precipitation of iodine, thereby significantly improving the stability of the wide-band-gap solar cell.

The invention discloses a high-strength thermoplastic composite pipeline with a metal armored reinforcing layer, belongs to the field of development of clean energy such as natural gas and hydrogen, and is suitable for conveying the clean energy such as natural gas and hydrogen. The pipeline sequentially comprises a lining layer, a reinforcing layer, an anti-abrasion layer, a heat preservation layer, a protection layer, an auxiliary layer, a metal armoring layer, an anti-abrasion layer and a metal armoring reinforcing layer from inside to outside. The lining layer is made of a polytetrafluoroethylene material, the reinforcing layer is formed by spirally winding a high-strength carbon fiber material, the anti-abrasion layer is made of a polyethylene material, the heat preservation layer is made of an aerogel material, and the protection layer is made of a high-density polyethylene material. The two metal armor layers are buckled and connected in a staggered mode through C-shaped interlocking components which are spirally wound in the reverse direction, and the spiral winding angle is 30 degrees. The C-shaped interlocking structure is composed of an outer lock catch and an inner lock catch. Through the multi-layer structural design, the tensile strength, the impact resistance and the torsional strength of the thermoplastic composite pipeline can be effectively improved, the service life of the pipeline is prolonged, and the safety and the stability of the pipeline under complex working conditions are enhanced.

The invention relates to an online calculation method for the voidage of a dead stock column in an iron notch area of a blast furnace hearth, and belongs to the technical field of blast furnace ironmaking. Comprising the following steps that 1, hearth geometric parameters, molten iron attributes, tapping data and dead stock column state parameters are obtained; 2, the distance between the molten iron liquid level and the tap hole plane at the beginning of tapping and the distance between the molten iron liquid level and the tap hole plane at the end of tapping are calculated; 3, calculating the voidage of the dead stock column; and 4, repeating the steps 1-3, and calculating the voidage of the dead stock column in the next period. According to the method, the blast furnace dead stock voidage is continuously calculated on line through blast furnace tapping data, the voidage of the blast furnace hearth dead stock in the production and operation process is known in real time, and time and labor are saved.

The utility model particularly discloses a high-altitude anti-falling device in a limited space, which comprises two right-angle steel pipes including right-angle steel pipe transverse sections and right-angle steel pipe vertical sections, and the two right-angle steel pipe transverse sections are in threaded connection; the two vertical steel pipes are rotationally connected with the vertical sections of the right-angle steel pipes respectively, and the rotating axes of the vertical steel pipes are orthogonal to the length directions of the vertical steel pipes and parallel to the transverse sections of the right-angle steel pipes; the locking assembly is used for locking the vertical steel pipe and the vertical section of the right-angle steel pipe; the net hanging assemblies are arranged on the inner sides of the vertical sections of the vertical steel pipes and the right-angle steel pipes and used for hanging ropes; the rope is hung on the net hanging assembly; the fixing assembly is arranged at the end, away from the right-angle steel pipe, of the vertical steel pipe and used for fixing the high-altitude anti-falling device to a building outer frame steel pipe. According to the anti-falling net bag device, one side of the anti-falling net bag device can abut against a supporting object through adjustment and folding in a narrow space, net bag devices of different shapes are formed, and the anti-falling effect is achieved.

The invention provides a light energy and wave energy combined power generation device for an offshore area and a use method, the light energy and wave energy combined power generation device is characterized by comprising a plurality of groups of power generation assemblies, and a limiting part is connected between every two adjacent groups of power generation assemblies; the power generation assembly comprises installation assemblies placed on the sea surface, the adjacent installation assemblies are connected through limiting parts, photovoltaic panels are installed at the top positions of the installation assemblies, the installation assemblies are connected with connecting arms, and the connecting arms are provided with arch-shaped elastic structures. One end of the arch-shaped elastic structure is fixedly connected to the position, close to the mounting assembly, of the connecting arm, the arch-shaped elastic structure is movably connected to the connecting arm, the end, connected with the connecting arm, of the arch-shaped elastic structure is connected with a wave energy power generation assembly, and the adjacent wave energy power generation assemblies are also connected through a limiting part; a fixing part is connected to the position, close to the connecting arm, of the bottom of the mounting assembly and fixed to the seabed. The device combines light energy and wave energy for power generation, and improves the efficiency of energy collection in offshore areas.

The utility model discloses a plate-made disc welding eccentric reducing joint, and relates to the technical field of pipeline fittings. The disc is connected with the first short pipe; the first short pipe is connected with the disc, the second short pipe is connected with the disc, the reinforcing flange plate is connected between the disc and the second short pipe, the inner diameter of the first short pipe is larger than that of the second short pipe, and the eccentric distance between the first short pipe and the second short pipe is H; a first inner hole is formed in the first short pipe, a second inner hole is formed in the second short pipe, a third inner hole is formed in the disc, the third inner hole is connected between the first inner hole and the second inner hole in a penetrating mode, and the inner diameter of the second inner hole is the same as that of the third inner hole. The eccentric distance of the third inner hole on the disc is H. The corrosion-resistant and wear-resistant layers are arranged in the second inner hole and the third inner hole. The conveying device is easy to machine, low in cost, firm in connection and stable in conveying.

The invention discloses a method for reducing basement peripheral pipe piles to resist peripheral soil settlement, and relates to the technical field of buildings, and the method comprises a peripheral soil settlement reducing and resisting mechanism and waste pipe piles; the mechanism for reducing and resisting surrounding soil settlement is composed of a prefabricated concrete pipe, a prefabricated reinforced concrete plate and foundation sand. The ground is recovered by finding piles, filling sand, pressing in the prefabricated concrete pipe, backfilling earthwork to stabilize the prefabricated concrete pipe, plastering, covering the prefabricated concrete pipe with the prefabricated reinforced concrete plate and finally backfilling the earthwork to the ground surface; a mechanism for reducing and resisting surrounding soil settlement is arranged, so that the settlement speed of the ground above the waste pipe pile can be effectively controlled, the settlement speed of the ground above the waste pipe pile is kept consistent with that of the surrounding ground, and ground cracking caused by settlement difference is avoided; the problem that the ground of municipal and garden supporting facilities is prone to damage due to the fact that the settling velocity of the ground above foundation pipe piles of waste tower cranes, people and goods elevators and other structures is inconsistent with that of the surrounding ground is solved.

The slope slide-resistant pile comprises a slope protection assembly, the slope protection assembly is composed of anchor rods, a slope body, reinforcing ribs, a reinforcing mesh, a transverse #-shaped frame and a vertical #-shaped frame, and the anchor rods are symmetrically and fixedly connected to the slope body; according to the slope protection device, a good stabilizing effect is provided for a slope body through the slope protection assembly, the structure is simple, and the construction efficiency is improved; the drainage assembly is prepared in advance, the installation groove is dug, rapid installation and use can be achieved, a good drainage function is provided, auxiliary drainage can be conducted through a redundant channel after the filter screen is blocked, and the use stability of the equipment is improved; by adding the accelerator into the concrete and curing for a specified long time, the concrete setting can be obviously accelerated, the early strength can be improved, the normal increase of the strength can be ensured to a certain extent, the shrinkage cracking can be reduced and prevented, and meanwhile, the stability of the slope surface is further improved by a method and a spraying process of spraying the concrete twice, so that the slope surface quality is improved. And slope landslide is effectively avoided.

The present invention belongs to the technical field of nickel-based alloy connection, and specifically relates to a brazing method for improving the high-temperature welding performance of nickel-based alloy joints and a prepared multi-layer welded joint. First, the brazing material is processed into an amorphous brazing foil, and then the amorphous brazing foil is pre-placed between the joint surfaces of the workpieces to be welded of the Inconel625 nickel-based alloy, and then the workpieces to be welded are fixed and placed in a vacuum brazing furnace for brazing. After the brazing is completed, the workpiece group is cooled to below 100°C and then solution treated in a vacuum brazing furnace. The amorphous foil-shaped brazing material used in the present invention has a small difference in melting point from the parent material, which is conducive to capillary action and can optimize the formation and performance of the brazed joint; the solution treatment can improve the distribution and morphology of brittle phases such as borides in the brazing seam. The present invention can be used as a special brazing method for multi-layer brazing joints or Inconel 625 nickel-based alloys, and has great application prospects.