350results about How to "Achieve cycle" patented technology

The invention relates to the technical field of motors, and provides a multi-cooling permanent magnet synchronous variable frequency motor which comprises a shell, a stator and a rotor and further comprises a plurality of cooling fins, a cooling fan, a water cooling mechanism and a driving mechanism, the cooling fins are fixedly connected to the outer portion of the shell, the cooling fan is coaxially and fixedly connected with the rotor, and the water cooling mechanism is fixedly connected with the stator. An air outlet is formed in the shell, the water cooling mechanism is used for conducting water cooling on the shell and comprises a cold water pipe and a heat dissipation pipe network, the cold water pipe penetrates through the multiple cooling fins, the top of the heat dissipation pipe network communicates with the top of the cold water pipe through a water supply pipe, and the bottom of the heat dissipation pipe network communicates with the bottom of the cold water pipe through a water return pipe; the heat dissipation pipe network is located outside the shell and corresponds to the air outlet in position, and the driving mechanism is used for driving cold water to circularly flow in the cold water pipe and the heat dissipation pipe network. By means of the technical scheme, the problem that in the prior art, a single cooling mode is limited in cooling effect is solved.

The utility model provides a vertical reactor for green ammonia production, which comprises a shell, an internal part is arranged in the shell and divides the shell into a first cavity and a second cavity, an annular space is formed between the outer wall of the internal part and the inner wall of the shell, and a third cavity, a fourth cavity and an electric heater are arranged in the internal part. The device further comprises a lower heat exchanger, an upper catalyst frame assembly, a catalyst reaction cavity and a fifth cavity, a dead gas heat insulation cavity is further formed between the catalyst reaction cavity and the electric heater, and gas inlets are formed in the shell and comprise an annular gap gas inlet, a main gas inlet and a temperature adjusting gas inlet. The shell is cooled through basically constant external cold gas, large temperature fluctuation is prevented, operation under the fatigue working condition is avoided, the service life of the shell is prolonged, the heat dissipation performance of the shell is improved, the service life of the shell is prolonged, and the service life of the shell is prolonged. And the temperature of the catalyst reaction can be adjusted through external cold gas, so that the reaction efficiency of the catalytic reaction is improved.

The invention belongs to the field of wastewater treatment. The invention provides a manganese-carbon composite controlled-release material as well as a preparation method and application thereof. The manganese-carbon composite controlled-release material comprises the following components: a manganese-rich mineral, a natural plant carbon source, a cementing material, aggregate, an additive and a foaming agent. The manganese-carbon composite controlled-release material disclosed by the invention can regulate and control the carbon release and manganese circulation process by virtue of the interaction between manganese and carbon, so that the electron transfer and mass transfer efficiency is remarkably improved, synergistic denitrification is realized, the overall denitrification efficiency is remarkably improved, and synchronous nitrogen and phosphorus removal and self-adaptive continuous denitrification are realized. The raw materials required for preparing the manganese-carbon composite controlled-release material are environment-friendly and low in price, the preparation process is simple, the preparation cost is low, and the manganese-carbon composite controlled-release material can be applied to filler in a submerged area of an artificial wetland, a biological filter and a biological retention system, and can be widely applied to application scenes such as tail water advanced treatment of a sewage treatment plant, rural agricultural sewage treatment and initial rainwater purification.

The invention relates to the technical field of solar energy application, in particular to a PVT photovoltaic water-based heat cycle system which comprises a photovoltaic assembly used for converting solar energy into electric energy, a photo-thermal assembly used for utilizing heat energy generated by the photovoltaic assembly and a heat cycle assembly used for circularly supplying heat to a room. The photo-thermal assembly is fixedly connected to the back face of the photovoltaic assembly, the thermal circulation assembly is connected with the photo-thermal assembly, heat-conducting media are arranged in the thermal circulation assembly and the photo-thermal assembly, the photovoltaic assembly and the photo-thermal assembly are integrally connected, the photovoltaic assembly and the photo-thermal assembly are placed outdoors, the thermal circulation assembly is placed indoors, the photovoltaic assembly converts solar energy into electric energy, and the electric energy is stored in the photovoltaic assembly. The photovoltaic assembly generates a large amount of heat, the photo-thermal assembly absorbs the heat on the back face of the photovoltaic assembly, the photo-thermal assembly conducts the heat to the thermal circulation assembly, the thermal circulation assembly heats low-temperature air and blows out the low-temperature air, the indoor temperature can be rapidly increased, and the photovoltaic assembly can be cooled while the heat-conducting medium circulates.

The invention relates to the technical field of fertilizers, in particular to a carbon-water biomass fertilizer and a preparation method thereof. The organic fertilizer is prepared from the following raw materials in parts by weight: 4000 to 5000 parts of solid wood sawdust, 80 to 120 parts of vegetable bran, 80 to 120 parts of wheat bran, 200 to 300 parts of cow dung, 200 to 300 parts of sheep manure, 20 to 40 parts of brown sugar, 30 to 50 parts of corn starch and 80 to 120 parts of microbial compound strains. The solid wood sawdust, vegetable bran, wheat bran, cattle and sheep manure and other agricultural byproducts are used as raw materials, decomposition of organic matters is accelerated under the action of fermentation and microbial composite strains, and the content of extractable organic carbon in soil is increased. According to the present invention, the soil structure and the soil fertility can be easily improved, the plant growth can be promoted, the resource utilization of the agricultural waste can be achieved, and the characteristics of environmental protection and sustainability are provided.

The invention relates to the technical field of chemical metallurgy, and discloses a preparation and purification method of high-purity sponge vanadium, which comprises the following steps: preparing a vertical vacuum reduction furnace, adding a reducing agent, discharging air in the furnace, and introducing shielding gas; heating, adding vanadium chloride for smelting, taking out, putting into a distillation furnace, and carrying out heating and heat preservation treatment; and finally, putting the product into a crucible in an electron beam furnace, vacuumizing, heating and smelting, introducing protective gas into the electron beam furnace after smelting, and cooling to room temperature to obtain a sponge vanadium product. The high-purity sponge vanadium is prepared by adopting a novel vanadium chloride metal thermal reduction-distillation method, and the sponge vanadium is further purified through vacuum electron beam refining, so that the common technical problems of long flow, low product purity and the like of a traditional method for preparing the high-purity metal vanadium are solved.

The invention discloses raw cheese fermentation, dehydration and block making integrated equipment, and relates to the technical field of cheese manufacturing, the integrated equipment comprises a pretreatment mechanism, a fermentation mechanism, a dehydration mechanism, a temperature control mechanism and a die cutting mechanism, the pretreatment mechanism is fixedly connected with the fermentation mechanism, and the pretreatment mechanism is communicated with the fermentation mechanism; the dehydration mechanism is fixedly connected with the fermentation mechanism, the dehydration mechanism is communicated with the fermentation mechanism, and the pretreatment mechanism, the fermentation mechanism, the dehydration mechanism and the die cutting mechanism are fixedly connected with the temperature control mechanism; the pretreatment mechanism performs multi-layer filtration on fresh milk and realizes preliminary separation of cream and skimmed milk by utilizing runners and valves of a pretreatment box, a cream box and a skimmed milk box, the dehydration mechanism accelerates dehydration forming through extrusion, inert purging, electromagnetic heating and vibration, and the temperature control mechanism alternately regulates and controls the temperature through a heating box and a cooling box. And the die cutting mechanism realizes accurate cutting and retracting actions of the block cheese.

According to the new energy power generation and electricity hydrogen hybrid energy storage integrated comprehensive energy system, new energy is used for power generation, and a methane cracking hydrogen production device is used for converting methane into hydrogen to serve as a raw material to be used for power generation of a fuel cell and a micro gas turbine. The problems that due to randomness, volatility and intermittency of wind energy and solar energy, stability energy storage equipment lacks, power supply reliability is reduced, and power supply quality is affected are solved. In addition, the fuel cell and the micro gas turbine take hydrogen as fuel and cannot consume fossil fuel, so that carbon emission and pollution are reduced. Meanwhile, compared with hydrogen production through electrolysis of water, hydrogen production through methane conversion by the methane cracking hydrogen production device, complexity in the energy conversion process is reduced, and the overall energy utilization efficiency is improved. A methane cracking hydrogen production technology is introduced, so that the yield and quality of hydrogen are improved, and the whole process is green, environment-friendly and pollution-free. According to the invention, the energy utilization rate is improved while the carbon emission is reduced.

The invention belongs to the technical field of chemical recycling, and particularly relates to a one-way depolymerization, high-purity and high-yield epsilon-CL closed-loop recycling method. According to the method, only trace acetylacetone metal salt is used as a catalyst, the epsilon-caprolactone monomer is recovered in a manner of in-situ catalytic degradation of PCL (polycaprolactone) under the assistance of heating and temperature rise in a low-vacuum environment, the depolymerization efficiency of 100% is realized, and the problems of low depolymerization yield, easiness in carbonization, long time, low purity of recovered products and the like in an existing method are solved. The product obtained by the method disclosed by the invention is pure, does not need complex post-treatment such as secondary purification, water removal and the like, has reaction activity of 100% repolymerization, can be directly used for repolymerization reaction to obtain regenerated PCL, and has the tensile strength of 31.3 MPa and the elongation at break of 831%. According to the method disclosed by the invention, polymer-monomer-polymer closed-loop circulation of PCL is perfectly realized by a mild depolymerization reaction process, and the possibility of industrial depolymerization-polymerization is expected to be realized.

The roller shutter type breeding work ship comprises a ship body and a roller shutter assembly, a breeding cabin is arranged in the ship body, and an opening communicated with the breeding cabin is formed in the broadside of the ship body; the top of the broadside of the ship body is provided with a containing cavity, the containing cavity communicates with the opening, the roller shutter assembly is arranged in the containing cavity and comprises a first driving part, a winding drum and a roller shutter piece, the first driving part is in transmission connection with the winding drum, the side wall of the opening is provided with a guide rail extending in the vertical direction, the roller shutter piece is wound around the winding drum, and the first driving part is used for driving the winding drum to rotate. The roller shutter sheet is driven to extend into the opening along the guide rail and block the opening; or the roller shutter sheet is driven to retract into the accommodating cavity and the opening is opened. According to the invention, the transition speed of the roller shutter type breeding work ship opened and closed on the broadside is accelerated, and transition breeding and emergency typhoon avoidance of the roller shutter type breeding work ship opened and closed on the broadside are facilitated.

The utility model discloses a fruit ripening accelerating storage device which comprises a storage device body, a storage box is arranged on the storage device body, a separation top plate is arranged at the top of the storage box, side separation net plates are symmetrically connected to the two sides of the lower end of the separation top plate, an induced draft fan is installed on the separation top plate in a clamped mode, and an air chamber is arranged above the separation top plate. And air guide pipes penetrate through the two sides of the separation top plate, the air guide pipes are located between the storage box and the side separation net plates, layered frames are arranged in the storage box in an overlapped mode, positioning rods are arranged above the layered frames, arc structures are evenly arranged on the positioning rods at intervals, and guide rods are connected between the arc structures between the positioning rods at intervals. According to the fruit ripening acceleration storage device, a strip-shaped channel structure is formed through the guide rods, fruits can be stored in a layered mode, extrusion among the fruits is reduced, the fruits are dispersed, the uniformity of the fruit ripening acceleration process is guaranteed, meanwhile, the step of rolling over the fruits is reduced, and the storage quality is improved.

The invention provides a water / foam circulating system, and relates to the technical field of emergency fire-fighting equipment around petrochemical fires, and the water / foam circulating system comprises a circulating device which is used for generating fire-fighting water / fire-fighting foam according to test requirements; and the water spraying device is connected with the circulating device and is used for spraying fire-fighting water / fire-fighting foam to the target spraying object. The water / foam circulation system provided by the invention can realize water / foam circulation, and the heat radiation tolerance limit value of the water / foam circulation system can be determined through a water / foam circulation test method.

The invention discloses a mother liquor destroying evaporator and a spent fuel post-treatment process system, the mother liquor destroying evaporator comprises a circulation loop for mother liquor to circularly flow, and a heating unit and a separation unit which are sequentially communicated with the circulation loop. The heating unit is used for heating mother liquor, a heated gas-liquid mixture flows to the separation unit through the circulation loop, the separation unit is used for carrying out gas-liquid separation on the gas-liquid mixture, and a liquid phase flows back to the heating unit through the circulation loop, so that one-time evaporation and concentration circulation is completed; and the mother liquor refluxed into the heating unit is continuously subjected to next evaporation and concentration circulation. And the analysis unit is used for analyzing the liquid phase in the sampling loop, opening a concentrated feed liquid outlet according to the analysis result of the analysis unit, and discharging the mother liquor after evaporation and concentration circulation. The mother liquor destroying evaporator can destroy oxalic acid in the mother liquor and realize concentration of the mother liquor at the same time, so that the existing process is improved.

The utility model provides an oil guide lubricating structure, a through axle and a vehicle, and relates to the technical field of automobiles, the oil guide lubricating structure is arranged in an axle housing of the through axle, a containing cavity is formed in the axle housing, and a bearing and a driven gear are arranged in the containing cavity; the oil guide lubricating structure comprises a connecting part and a lubricating part, wherein the connecting part is fixedly connected with the inner wall of the axle housing; the oil guide part is connected with the connecting part, an oil channel is formed in the oil guide part, and the oil channel extends from one end of the driven gear to one end of the bearing; the oil collecting part is connected to one end of the oil guide part, an oil storage cavity communicated with the oil duct is formed in the oil collecting part, and the bottom of the bearing is located in the oil storage cavity. According to the oil guide lubricating structure, oil thrown out by rotation of the driven gear can be received, the oil is guided to the bottom end of the bearing, and it is guaranteed that the through axle bearing is fully lubricated.

The invention relates to the technical field of motors, and particularly discloses a dual-redundancy servo motor which comprises a shell, and the interior of the shell is hollow. The driving mechanism comprises a permanent magnet alternating current servo motor and a transmission shaft, the permanent magnet alternating current servo motor comprises a stator and a rotor, and the stator drives the transmission shaft to rotate; the two brushless resolver engines are arranged adjacent to the transmission shaft, the two brushless resolver engines are both provided with resolver parts, and the resolver parts are connected with two annular resolver parts arranged at the two ends of the interior of the shell; the heat dissipation mechanism comprises a heat dissipation annular plate, a heat dissipation spiral pipe and a peristaltic pump; the servo motor overcomes the defects that in the prior art, the temperature control of the servo motor is poor, and the utilization rate of the internal space is low.

The invention discloses a heat collection and heat removal integrated energy-saving enclosure structure and a heat collection and heat removal adjusting method thereof. In the structure, a roof subsystem comprises a roof radiation layer, a roof structure layer, a cavity located between the roof radiation layer and the roof structure layer, and a communicating device used for achieving air circulation and isolation between the indoor space and the cavity; the roof radiation layer comprises a plurality of inclined and side-by-side double-side shutter radiation units, each double-side shutter radiation unit comprises a condensation pipe, a central pipe rotationally sleeving the condensation pipe and shutter plates arranged on the two sides of the central pipe, one side of each shutter plate is provided with a sky radiation cooling material, and the other side of each shutter plate is provided with a solar heat collection material; the wall subsystem comprises a wall and evaporation pipes arranged in the wall, the upper ends of the evaporation pipes are in butt joint with the lower ends of the corresponding condensation pipes, and the evaporation pipes are used for storing heat-conducting media capable of absorbing heat and evaporating. Natural energy can be fully utilized in summer and winter to meet the cold and hot requirements, and the complexity and cost of the system are reduced.

The invention relates to the technical field of desulfurization and demisting, and discloses a demister with a water circulation function, comprising a mounting rack and a cleaning box fixedly connected to the mounting rack; the first electric telescopic rod is fixedly connected to the mounting frame, and a mounting plate is fixedly connected to the bottom end of the first electric telescopic rod; according to the demister with the water circulation function, water is supplied to the cleaning box through the water circulation mechanism, then a baffle plate is driven to be led into the cleaning box, then a mounting pipe and the baffle plate are driven to rotate in the cleaning box, and meanwhile cleaning water in the cleaning box is disturbed through fixing of an air bag; meanwhile, mist particles on the baffle plates fall off under the action of centrifugal force, and the baffle plates are washed and cleaned through the cleaning nozzles on the cleaning pipes, so that the mist particles on the baffle plates are fully cleaned, the automatic cleaning effect on the demister is greatly improved, and the subsequent smoke demisting effect of the demister is further improved.

The invention discloses a root soaking device for seedling transplanting disease and pest control, and relates to the technical field of seedling root soaking, the root soaking device comprises a base, a fixing plate, a circulating chain and a cultivation box, the fixing plate comprises an inclined drainage part, a horizontal filtering part, an inclined transition part, a horizontal soaking part and an inclined sedimentation part which are communicated end to end in sequence to form a step-shaped structure, a first permanent magnet part and a second permanent magnet part are fixedly connected to the bottom of the cultivation box, seedlings can be placed in the cultivation box, the cultivation box can circularly move on the base under the traction of the circulating chain, and the cultivation box sequentially passes through an inclined drainage part, a horizontal filtering part, an inclined transition part, a horizontal soaking part and an inclined sedimentation part in the circulating process; in the process, the liquid medicine in the cultivation box can be discharged from the inclined drainage part, and injection of the liquid medicine is completed in the process that the liquid medicine passes through the horizontal soaking part, so that circulation of the liquid medicine in the cultivation box is achieved.

The invention provides equipment and a method for circularly cleaning sludge in an irrigation canal, and belongs to the technical field of sludge cleaning equipment.The equipment for circularly cleaning the sludge in the irrigation canal comprises a water storage pond; an opening is formed in the top of the silt storage pool, the silt storage pool is fixedly installed in the water storage pool, and a water storage tank is reserved between the silt storage pool and the inner wall of the water storage pool; the two overflow ports are formed in the two side ends of the silt storage pool respectively; the silt inlet pipeline is arranged on the upper side of the silt storage tank; through the design of the water storage tank and the silt storage tank, after silt and water enter the silt storage tank, the silt is deposited at the bottom, and the water is accumulated above. When water is accumulated to submerge the edge of the uppermost side of the inclined baffle, the water overflows from the upper surface of the inclined baffle into the water storage tank between the water storage pond and the silt storage pond and is finally discharged into the water channel through the water outlet pipeline, water circulation is achieved, waste of water resources is avoided, and meanwhile silt can be effectively cleaned.

The abrasive flow machining device for screw polishing comprises a lathe bed, a charging barrel for loading a screw is arranged on the lathe bed, a power assembly for driving the screw to rotate is arranged at one end of the charging barrel, and a regulation and control structure is arranged at the other end of the charging barrel; the regulation and control structure comprises a regulation and control cylinder communicated with the interior of the charging barrel and a discharging port formed in the regulation and control cylinder, and a spring and a regulation and control plate matched with the spring and used for controlling the size of the discharging port are arranged in the regulation and control cylinder; the charging barrel is connected with a feeding assembly for providing grinding materials into the charging barrel, and the charging barrel is connected with a circulating assembly for circulating the grinding materials; compared with the prior art, the adjusting and controlling plate reciprocates at the discharging port under the action of the spring and the grinding material, so that the size of the discharging port is adjusted, the pressure at the discharging port is automatically adjusted and controlled, the pressure difference between the two ends of the charging barrel is autonomously controlled, uneven stress of a screw rod is avoided, and the polishing effect of the screw rod is improved.

The utility model relates to the technical field of tobacco processing, in particular to a tobacco leaf feeding device which comprises a feeding tank device, the feeding tank device comprises a feeding tank body, feed liquid is stored in an inner tank, and a steam spiral pipeline is arranged in an interlayer between the inner tank and the outer wall of the feeding tank body in a winding mode. A plurality of first ultrasonic vibration assemblies are arranged on the inner tank of the feeding tank body; a return pipe is arranged at the top of the inner tank of the charging tank body, and a charging tank outlet pipeline is arranged at the lower part of the inner tank; the tail end of an outlet pipeline of the material tank is connected with a filter, a discharge port of the filter is connected with a blow-off pipe and a material pump through a three-way pipe, a discharge port of the material pump is communicated with a reaction pipeline, a discharge port of the reaction pipeline is connected with a flow meter, and a discharge port of the flow meter is communicated with the return pipe and the feeding pipeline through a three-way pipe; and a spraying head is further arranged at the tail end of the feeding pipeline. The atomization device has the advantages of being good in atomization effect, convenient and efficient to clean, accurate in atomization control and the like.

The utility model discloses an aquaculture fry hatching device which comprises a water tank and a circulation tank, a first water pump is installed on one side of the circulation tank, a water pipe is connected to the bottom of the water tank, one end of the water pipe is connected to a water inlet of the first water pump, a second water pump is installed on one side of the circulation tank, and a water outlet of the second water pump is connected with a water hose. A nozzle is fixedly installed at one end of the water hose, a moving assembly used for supporting the nozzle is installed on one side of the water tank, a plurality of limiting blocks are fixedly installed on the inner side of the water tank, a roe box is slidably installed on the inner sides of the limiting blocks, a supporting piece abutting against the limiting blocks is installed on one side of the roe box, and a plurality of exchange holes are formed in the bottom face of the roe box. The moving assembly drives the spray head to move transversely, after nutrient substances are added into the circulation box, the spray head can spray water containing the nutrient substances to different positions in the water tank, and in the water circulation process, the water sprayed by the spray head can improve the dissolved oxygen content of the water in the water tank.

The invention relates to a simulation test device and test method for oil extraction pipelines of an oil-immersed transformer, and the device comprises a thermal aging cavity, a copper electrode pair, insulation paper, an oil inlet, an oil outlet, a vacuum oil injection port, an intelligent temperature control system, a first oil extraction pipeline, a second oil extraction pipeline, a third oil extraction pipeline, an elbow, a speed-adjustable oil pump, and a three-way joint. The copper electrode pair and the insulation paper are both located in the thermal aging cavity, the insulation paper is arranged in the middle of the copper electrode pair, the oil inlet, the oil outlet and the vacuum oil injection port are all arranged outside the thermal aging cavity, the vacuum oil injection port is used for injecting insulating oil in a vacuum mode, and the intelligent temperature control system is connected with the thermal aging cavity. The oil outlet is sequentially connected with the first oil taking pipeline, the speed-adjustable oil pump, the second oil taking pipeline, the elbows, the three-way connector and the third oil taking pipeline, the third oil taking pipeline is connected with the oil outlet, circulation of insulating oil is achieved, and the number of the elbows can be changed. Compared with the prior art, the device has the advantages of being capable of simulating parameters such as the oil taking pipeline structure, the oil flow speed and the temperature of the oil-immersed transformer and analyzing the influence on the concentration of the gas dissolved in the oil and the like.

The invention provides a gravity energy storage single-channel circulating device which comprises an energy storage system, a power generation system, a guide rail system and a weight block, the energy storage system and the power generation system each comprise a loading mechanism and an unloading mechanism, and the guide rail system comprises a first guide rail and a second guide rail; the loading mechanism of the energy storage system is connected with the unloading mechanism of the power generation system through a first guide rail, and the unloading mechanism of the energy storage system is connected with the loading mechanism of the power generation system through a second guide rail. The weight block is spherical, the first guide rail and the second guide rail each comprise an inclined part, and the spherical weight block can move from one loading mechanism to the other corresponding unloading mechanism along the inclined parts. According to the gravity energy storage single-channel circulating device, circulating reciprocating motion of weight blocks between two systems can be achieved, circulation of the weight blocks in a single-channel mode is achieved, under the condition that energy consumption can be reduced, the energy conversion rate is increased, the overall structure is simple, the occupied area is small, circulation is smooth, and the operation efficiency can be improved.

The invention belongs to the field of wafer cleaning, and particularly relates to double-wafer cleaning equipment which comprises a cleaning box, a liquid storage box is fixed to the bottom of the cleaning box, three cleaning brush rollers rotate at the same time, the rotating directions of the cleaning brush rollers located on the upper portion and the lower portion are the same, and the rotating direction of the cleaning brush roller located in the middle is opposite to the rotating direction of the cleaning brush roller located in the middle. The rotating brushing directions of the cleaning brush rollers located at the top and the bottom of the wafer main body are different, so that the surface of the wafer main body can be subjected to mechanical acting force in multiple directions, various types of pollutants are more thoroughly removed, and the cleaning liquid is directly injected into the cleaning brush rollers, so that the cleaning efficiency is improved. And the used cleaning liquid flows into the liquid storage tank to be filtered so as to be pumped out next time, circulation of the cleaning liquid is achieved, the requirement for new cleaning liquid in the cleaning process is reduced, and resources are saved.

According to the fish and vegetable symbiotic system provided by the embodiment of the invention, the fish manure treatment equipment is used for carrying out vertical flow separation, filtration and fermentation on culture sewage, and particulate matters such as fish manure in the culture sewage are fully treated, so that organic matters in the particulate matters are dissolved in primary tail water; the protein separation equipment is used for continuously carrying out protein separation on organic matters in the primary tail water, and the nitrification equipment is used for converting ammonia nitrogen in the culture sewage into nitrate which can be absorbed by plants, so that the ammonia nitrogen in the culture sewage of the fish culture system is removed, dissolved oxygen in the culture water is increased, and fishes can grow healthily; according to the system, ammonia nitrogen contained in the culture water of the fish culture system is fully utilized, so that fertilizers required by the plants do not need to be regularly and quantitatively applied to the plants, a large amount of labor cost does not need to be input, and various fertilizers do not need to be purchased with high economic cost; and the input cost of hydroponic plant cultivation is reduced.

The present invention relates to the technical field of bulletproof plate processing, and in particular to a composite bulletproof plate coating device. It comprises a coating box, a positioning component, a cleaning component, a film, a circulating conveying component and a coating component. A row of delivery parts is arranged at the front end of the coating box; the discharging part is located below the delivery part; the positioning component is arranged at the rear end of the coating box corresponding to the delivery part; the cleaning component is located on both sides of the coating box; two groups of films are arranged, respectively located on both sides of the positioning component and the delivery part; two groups of circulating conveying components are arranged in the coating box, one on the left and one on the right, and respectively located between the cleaning component and the film on the corresponding side; coating parts are arranged on the coating components located on the two groups of circulating conveying components. The present invention presses the film onto the two side surfaces of the composite bulletproof plate through the coating plate, presses the film onto the side wall of the composite bulletproof plate through the groove wall of the coating groove, and then cuts and seals the excess film, so that the coating is comprehensive, efficient and has a good sealing effect.

The utility model discloses a multi-flow-path constant-flow hose connecting and distributing device, and relates to the technical field of hydraulic systems. The multi-flow-path constant-flow hose connecting and distributing device comprises a liquid supply device, a main flow path, a plurality of first branches arranged in parallel and a liquid leakage detection device, the same first branch is provided with a plurality of second branches arranged in parallel, and the main flow path comprises a liquid inlet flow path and a liquid return flow path; one end of the first branch is connected to the liquid inlet flow path, and the other end is connected to the liquid return flow path; one end of the second branch is connected with the liquid inlet end of the first branch, and the other end of the second branch is connected to the liquid outlet end of the first branch; the second branch is provided with a hose section; the liquid leakage detection device is used for detecting whether the hose section leaks liquid or not. According to the multi-flow-path constant-flow hose connecting and distributing device, whether the hose leaks, deforms or is damaged or not can be found in time through the liquid leakage detection device.

The invention discloses a speed reducer lubricating system, a speed reducer and a vehicle. The speed reducer lubricating system comprises a first shell; a second housing; the second shell is connected to the first shell, and an accommodating cavity is defined by the second shell and the first shell; the containing cavity comprises an input shaft cavity, a middle shaft cavity, an output shaft cavity and a ventilation cavity. An oil guide rib assembly; comprising a first oil guide rib and a first annular rib which are arranged on the first shell; the second oil guide rib and the second annular rib are arranged on the second shell; the first annular rib and the second annular rib are connected to form an annular rib; the first oil guide rib and the second oil guide rib are arranged between the middle shaft cavity and the annular rib; the annular rib is arranged around the input shaft cavity, the middle shaft cavity and the output shaft cavity; the annular rib, the inner wall of the first shell and the inner wall of the second shell form the ventilation cavity; a first opening is formed in the side, close to the output shaft cavity, of the first annular rib.