186results about How to "Increase disturbance" patented technology

The invention provides a magnetic suspension rotating machine. The magnetic suspension rotating machine comprises a magnetic suspension bearing and a motor stator and rotor. In the axial direction, the thrust disc is arranged between the first axial stator and the second axial stator, a first thrust disc ventilation hole is formed in the thrust disc in a penetrating mode from one axial end face to the other axial end face of the thrust disc, and the first axial stator comprises a first radial outer side part and a first radial inner side part. One end, positioned on the other axial end surface of the thrust disc, of each first thrust disc vent hole is positioned between the radial inner side part II of the axial stator II and the rotor, and the other end, positioned on the axial end surface of the thrust disc, of each first thrust disc vent hole is opposite to the position of the coil slot I in the axial direction; the first thrust disc vent hole is not opposite to the magnetic pole position of the first axial stator; and the motor stator and rotor runners are respectively communicated with the first thrust disc ventilation holes. According to the magnetic suspension bearing, heat dissipation and cooling of the magnetic suspension bearing are improved, meanwhile, the influence on a magnetic suspension magnetic circuit can be avoided, and enough magnetic suspension supporting force is guaranteed.

The invention discloses a stator windowing diversion centripetal oil-cooled motor, which comprises a stator assembly, a rotor assembly, a casing and an oil injection component with a windowing diversion structure, the stator assembly comprises a plurality of laminated punching sheet lamination sections, oil holes are circumferentially distributed in the outer circle side of each punching sheet, and the oil holes of the lamination sections are communicated with one another; the stator assembly is fixed in the machine shell, a cooling cavity is formed among the periphery of the stator assembly, the periphery of the rotor assembly and the machine shell, the rotor assembly penetrates through the inner side of the stator assembly, the two ends of the rotor assembly are rotationally connected with end covers of the machine shell respectively, a rotating shaft oil channel communicated with the cooling cavity is formed in the inner side of the rotor assembly, and an oil injection component of a windowing flow guide structure is arranged at the end of the stator assembly. And the oil injection components at the two ends of the stator iron core are communicated with the cooling cavity through an internal oil channel in the outer circle of the stator iron core. Oil enters the iron core and then flows to the two end faces of the iron core, the oil is sprayed out through the spraying holes, and the oil is guided and sprayed to the winding through the oil spraying component of the windowing flow guide structure. The cooling device has the advantages of compact structure, remarkable cooling effect and the like.

The invention relates to the technical field of air conditioner heat exchangers, and discloses a heat exchanger assembly for an air conditioner, which realizes uniform distribution of steam at an inlet position, ensures uniform contact between the steam and a heat exchange tube subsequently, and realizes efficient heat exchange between a heat source and a cooling liquid. The baffle plates are arranged in an up-and-down staggered mode to achieve vertical S-shaped flow of steam and are arranged in a left-and-right staggered mode, the two side faces of each spoiler are inclined faces, transverse S-shaped flow of the steam is achieved, it is guaranteed that the contact area of the steam and the heat exchange pipes is larger, the heat exchange effect is good, the spoiler blocks can destroy the boundary layer of steam flow, disturbance on steam flow is increased, and the heat exchange efficiency is improved. The circulation speed during steam heat exchange is slowed down, the contact time of the steam and the heat exchange pipes is prolonged, and the heat exchange effect is further improved; and when condensate water generated after heat exchange is finished flows out, the condensate water is filtered firstly, the heat conduction pipe is prevented from being blocked, the condensate water exchanges heat with the introduced cooling liquid after entering the heat conduction pipe, preheating of the cooling liquid is achieved, and energy waste is reduced.

The invention relates to the technical field of electronic information, and discloses a scale-like fin type micro-channel cold plate with a secondary channel. A first flowing channel is formed in the cold plate body; the fin plates are sequentially laid in the first flowing channel in the first direction, a plurality of fish scale-shaped protrusions are sequentially arranged on the two side faces of each fin plate in the flowing direction of the cooling liquid in a staggered mode, and the section of each fish scale-shaped protrusion is of a semi-oval structure; fish scale-shaped grooves are formed in the other side surfaces, corresponding to the fish scale-shaped bulges, of the fin plates; and each second flow channel is formed between every two adjacent fin plates. According to the fish scale-like fin type micro-channel cold plate containing the secondary channels, the flowing pressure of cooling liquid in the micro-channels is reduced, a boundary layer is broken, the heat dissipation temperature of the cold plate is uniform, and meanwhile the heat dissipation efficiency is improved.

The invention discloses a fire smoke detection method based on an improved YOLOv8 model, and the method comprises the steps: 1), replacing a Neck layer of the YOLOv8 model with a Gather-Distribate module, and adding a SimAM attention mechanism in front of an SPPF layer of a backbone network Backbone of the YOLOv8 model, and obtaining a fire smoke detection model; 2) iteratively training the fire smoke detection model by using a training set; and 3) inputting a to-be-identified fire smoke image into the trained fire smoke detection model to obtain a detection and identification result. The improved YOLOv8 model has strong generalization ability, improves multi-scale feature extraction ability, especially small targets in fire smoke, focuses network attention on the to-be-detected targets, reduces interference of uncorrelated backgrounds, and effectively improves the detection precision of the model.

The invention discloses a method for optimizing the cooling effect of a firefighter uniform based on an underarm heat dissipation channel, and relates to the technical field of fire-fighting equipment, and the method comprises the steps: S1, constructing an underarm heat dissipation initial data set; s2, quantifying a heat dissipation dynamic state and outputting underarm heat dissipation performance parameters; s3, airflow disturbance is adjusted through dynamic curvature, and a preliminary channel optimization model is generated in combination with a sectional channel design structure; s4, forming a multi-channel heat transfer model through a main and auxiliary channel parallel design and a layered coupling structure; s5, outputting a channel form model by adopting a non-circular wing-shaped cross section design and variable cross section transition; s6, embedding a guide vane and a spiral structure, and generating an airflow field optimization model; s7, generating a dynamically optimized armpit heat dissipation channel model by combining an ant colony optimization algorithm and a grey wolf optimization algorithm; and S8, obtaining a final optimized firefighter uniform underarm heat dissipation channel scheme. According to the method, armpit heat dissipation dynamic modeling, multi-channel optimization and hybrid intelligent algorithm tuning are adopted, and efficient armpit heat dissipation channel design is achieved.

The invention discloses a sewage treatment device for a concrete mixing station, and particularly relates to the technical field of sewage treatment.The sewage treatment device comprises a sewage settling pond, a sewage inlet and a sewage outlet, a filter screen is installed in the sewage settling pond, and the filter screen is used for filtering impurities carried by sewage in the sewage settling pond; the sewage quick-passing assembly is used for cleaning impurities adsorbed on the surface of the filter screen and cleaning the impurities on the surface of the filter screen again through water flow, and the sewage quick-passing assembly comprises a mounting plate arranged on one side of the filter screen and a cleaning column fixedly connected to one side of the mounting plate; through the arrangement of the sewage quick-passing assembly, impurities adsorbed on the surface of the filter screen can be cleaned, a large amount of impurities can be prevented from being gradually accumulated on the surface of the filter screen, the filtering effect of the filter screen on sewage in the sewage sedimentation tank is improved, normal operation of sewage treatment is facilitated, and the sewage treatment efficiency of the device is improved.

The utility model provides a spraying device for soil improvement, which comprises a fixed frame, a plurality of movable wheels arranged at the bottom of the fixed frame; the pesticide barrel is arranged on the fixing frame; the first rotating shaft penetrates into the pesticide barrel from the top of the pesticide barrel, and a plurality of first stirring blades are arranged on the first rotating shaft; the second rotating shaft penetrates into the pesticide barrel from the top of the pesticide barrel, a plurality of second stirring blades are arranged on the second rotating shaft, the second rotating shaft is tubular, and the first rotating shaft penetrates through the second rotating shaft; the driving part is arranged at the top of the pesticide barrel and drives the first rotating shaft and the second rotating shaft to rotate reversely; the spraying part is arranged on the fixing frame, and the spraying part sucks out the pesticide liquid in the pesticide barrel from the bottom of the pesticide barrel and sprays the pesticide liquid to the soil. According to the scheme, through the arrangement of the first rotating shaft, the second rotating shaft and the driving part, the stirring blades on the first rotating shaft and the stirring blades on the second rotating shaft rotate in opposite directions, so that disturbance of liquid medicine in the medicine barrel is increased, the liquid medicine can be fully mixed within a short time, and the stirring efficiency is improved.

The invention provides an impact jet flow double-layer micro-channel heat sink structure with fins and a working method thereof, and belongs to the technical field of micro-channel enhanced heat dissipation, the impact jet flow double-layer micro-channel heat sink structure comprises an upper-layer micro-channel, a lower-layer micro-channel and a plurality of partition plates, the upper-layer micro-channel and the lower-layer micro-channel are connected through a middle layer, and the partition plates vertically penetrate through the upper-layer micro-channel and the lower-layer micro-channel; the upper-layer micro-channel comprises a heat sink top, a first inlet area is arranged on the heat sink top, a flow dividing area is arranged on the lower portion of the first inlet area, flow guiding areas are arranged on the two sides of the flow dividing area, a second inlet area and a third inlet area are arranged at ports of the two sides of the upper-layer micro-channel respectively, and fins are installed below the heat sink top. A confluence area is formed between the fins and the middle layer, the lower-layer micro-channel comprises a heat sink substrate, and outlet areas are arranged at ports of the two sides of the lower-layer micro-channel respectively; the heat exchanger has the characteristics of high efficiency, relatively uniform convective heat exchange performance, low energy dissipation and high overall heat exchange.

The invention provides a heat recovery device of an air preheater, relates to the field of heat recovery of air preheaters, and aims to solve the problems of flue gas heat loss and insufficient heat recovery in the prior art. The device comprises an air preheater body, a flue gas filter, a fan, a preheating outer frame body, a heat preservation shell plate and the like. The air preheater body is provided with an air inlet pipe opening, an air outlet pipe opening and a heat exchange cavity, and a two-stage filter screen plate of the flue gas filter ensures that the flue gas is clean. The fan drives the spiral blades to make smoke flow spirally, and the circulation path is increased. A spiral liquid guide channel of the preheating outer frame body is communicated with a heat exchange pipeline, and heat exchange between water and smoke and heat exchange between the water and the smoke and the outer shell body are achieved through a booster pump. The heat preservation shell plate reduces heat loss. All the components work cooperatively, heat loss of the shell is effectively reduced, heat recovery efficiency is improved, and the heat exchanger is suitable for the fields of industrial boilers and the like and has remarkable energy-saving and environment-friendly significance.

The invention relates to the technical field of potato water culture, and discloses a nutrient solution culture device and a circulating culture method for purple potato water culture. In the plant water culture process, the lifting mechanism can adjust the inclination angle between the liquid collecting boxes and the culture frame so as to drive the liquid level in the liquid collecting boxes to vibrate, water culture liquid in the liquid collecting boxes is mixed to a certain degree through vibration, it is guaranteed that components of the water culture liquid in all parts in each liquid collecting box are uniform, and the water culture efficiency is improved. A good hydroponic environment can be provided for plants, growth of the plants is promoted, hydroponic liquid on the bottom layer is conveyed into the waste liquid treatment mechanism through the waste liquid recycling mechanism to be treated and discharged, and the hydroponic liquid is supplied to each liquid collecting box again through the culture liquid conveying mechanism in a timed and quantitative mode; the hydroponic solution losing nutritional ingredients can be replaced in time, different types of hydroponic solutions can also be replaced to deal with different growth processes of plants, and the hydroponic effect of the plants can be effectively guaranteed.

The invention discloses an infrared heat pump drying machine, which comprises a drying chamber, a plurality of infrared heat pumps, a plurality of infrared heat pumps, a plurality of infrared heat pumps, a plurality of infrared heat pumps, a plurality of infrared heat pumps, a plurality of infrared heat pumps, a plurality of infrared heat pumps and a plurality of infrared heat pumps, and is characterized in that the infrared heat pumps are arranged on the infrared heat pumps; the heat pump drying system comprises a heat pump drying outer box, an evaporator, a compressor and a condenser, the evaporator, the compressor and the condenser are arranged in the heat pump drying outer box, humid air in the drying chamber enters the heat pump drying outer box through an air outlet and an air return pipe, and the humid air is conveyed back to the drying chamber through an air supply pipe and an air supply outlet after being dried, dehydrated and heated by a heat pump; and the infrared drying system comprises a pair of infrared drying racks and a pair of carbon fiber infrared radiant panel groups. The invention further discloses an infrared heat pump drying method. Infrared drying and heat pump drying can be combined for use, the rapid heating characteristic of infrared rays can be utilized, heat can be recycled through a heat pump system, and the dual purposes of energy conservation and high efficiency are achieved.

The invention provides a shell-and-tube heat exchanger with an elastic baffle plate, the baffle plate is of an elastic tube bundle structure and comprises an elastic tube bundle, the elastic tube bundle comprises a plurality of arc-shaped tubes, the center lines of the arc-shaped tubes are arcs of concentric circles, the ends of the adjacent arc-shaped tubes in the radial direction are communicated at one end, and the other ends are not communicated. Therefore, the end portion of the communicated end of the tube bundle forms a free end, the arc-shaped tube on the outermost side is provided with an outer side opening end, the arc-shaped tube on the innermost side is provided with an inner side opening end, and the elastic tube bundle forms a series connection structure from the outer side opening end to the inner side opening end. The baffle plates are arranged to be of the elastic tube bundle structure, the contact area of two kinds of fluid is increased through the structure, fluid disturbance is increased, the convective heat transfer coefficient of the shell pass of the heat exchanger can be increased, and therefore the heat transfer efficiency is effectively improved.

According to the gas turbine blade based on the partitioned composite cooling structure, a plurality of different cooling channels are arranged in a blade body in a partitioned mode, and the cooling channels mainly comprise double-layer S-shaped ribs in the front edge area of the blade, double-layer wedge-shaped matrix ribs in the middle chord area of the blade and double-channel exhaust grooves in the tail edge area of the blade; air film holes are longitudinally formed in the peripheral wall of the outer layer of the thin wall corresponding to the positions of the double-layer S-shaped ribs and the double-layer wedge-shaped matrix ribs; jet holes are longitudinally formed in the circumferential wall of the solid inner layer, and cooling gas passing through the double-layer S-shaped ribs and the double-layer wedge-shaped matrix ribs is jetted to the inner wall face of the thin-wall outer layer through the jet holes. The overall heat exchange area in the turbine blade is increased, turbulence is enhanced, and boundary layer disturbance of airflow is increased; cold air is introduced from the interior or the periphery of the blade through the air film holes and sprayed to the surface of the blade to form an air film, direct contact between high-temperature airflow and the surface of a blade material is isolated, and therefore the thermal load on the surface of the blade is reduced, and the cooling effect of cooling gas on the high-temperature blade is improved.

The utility model relates to a cold -air machine with adjustable pedestal, including cold -air machine body, the pedestal that is fixedly arranged below cold -air machine body, the pedestal includes the square board that is arranged below cold -air machine body, the adjusting device that is arranged on the square board, a plurality of support legs that are fixedly arranged below the square board, the wheel that is respectively arranged on a plurality of support legs, the adjusting device includes the first motor that is fixedly arranged below the square board, the first gear that is fixedly arranged in the first motor output, the second gear that rotatably arranged below the square board and is engaged with the first gear, the carousel that is fixedly arranged on the second gear, the drive mechanism that is arranged on the carousel is used to drive the up-and-down swing of cold -air machine body. Use this cold -air machine, and cold -air machine body can swing up and down while carrying on autogyration, two kinds of movement modes do not interfere with each other, realize compound air supply mode, significantly increase the coverage area and air disturbance of cold air, promote the mixing and diffusion of cold air and indoor hot air, accelerate the overall cooling speed.

The invention provides a flat heat pipe with a multi-scale wick. The flat heat pipe comprises a lower bottom plate, the lower surface of the multi-scale liquid absorption core is fixedly connected with the upper surface of the lower bottom plate, the multi-scale liquid absorption core is foamy copper internally provided with a honeycomb-shaped V-shaped channel, and a hydrophilic modification layer is formed on the surface of the multi-scale liquid absorption core; and the edge of the lower surface of the upper cover plate is connected with the edge of the upper surface of the lower bottom plate so as to seal the multi-scale wick.

The present invention provides a sewage well leakage plugging device and a method of using the same, and belongs to the technical field of municipal facilities. A sewage well leakage plugging device includes a well frame, a well cover, a connecting groove, a water inlet, a filter plate and a drainage unit, wherein the drainage unit includes an upper shell, a drainage groove, a lower shell, a cylindrical groove, a connecting shaft one, blades and a drainage port; the present invention makes full use of the natural power of water flow through the drainage unit composed of the upper shell, the drainage groove, the lower shell, the cylindrical groove, the connecting shaft one, the blades and the drainage port. When ground rainwater flows into the drainage groove through the water inlet, the water flow can smoothly enter the cylindrical groove, drive the blades on the connecting shaft one to rotate along the cylindrical groove, and discharge the water from the drainage port into the well. This design not only achieves rapid drainage without the need for additional power equipment, but also avoids the odor problem caused by the long-term opening of the traditional water inlet, thereby improving the air quality of the surrounding environment.

The invention discloses a garbage incinerator, and relates to the technical field of garbage incineration treatment, the garbage incinerator comprises an incinerator body, a middle arch and a recirculation flue gas spray pipe, the middle arch is arranged in a hearth of the incinerator body and is located among a front arch, a rear arch and a combustion section fire grate, and a first flue gas channel can be formed between the middle arch and the front arch; a second flue gas channel can be formed between the middle arch and the rear arch, so that high-temperature flue gas in a hearth of the incinerator body flows through the first flue gas channel and the second flue gas channel, is converged above the middle arch and then enters the flue; the recirculating smoke spraying pipes are arranged at the bottom of the middle arch and used for spraying low-temperature smoke into a hearth of the incinerator body, at least one set of recirculating smoke spraying pipes face the front side of the middle arch, and at least one set of recirculating smoke spraying pipes face the rear side of the middle arch. The anti-coking middle arch is arranged in the hearth, disturbance of high-temperature flue gas is increased, volatile components are promoted to be mixed with oxygen, and the combustion efficiency is improved.

The utility model provides a kind of vacuum pump cooling mechanism, including rotor chamber, its both ends are open, and the outer surface of rotor chamber is equipped with two symmetrical arrangement air outlet, and the outer surface top of rotor chamber is equipped with air inlet;The rotor chamber is equipped with rotor cavity, and the channel for circulating cooling water is formed between rotor cavity and the inner wall of rotor chamber, and the both ends of rotor cavity are equipped with the rim that is connected with the fixed rotor cavity, and the rim is installed in the rotor chamber, and the air inlet, air outlet are all through channel and with the inside space of rotor chamber is communicated;One side of the air outlet is equipped with water inlet pipe, and the water inlet pipe is connected with the fixed rotor chamber, and the water inlet pipe is connected with channel;The outer surface top of rotor chamber is equipped with return pipe, and the return pipe is connected with channel, and the utility model has the following beneficial effects: reduce the production difficulty and processing cost of rotor chamber.

The application provides a micro-channel water-cooled plate flow equalization structure, which comprises a fluid inlet of a micro-channel water-cooled plate, a flow collecting box, a rough element structure, parallel arranged micro flow channels, a flow converging box and a fluid outlet of the micro-channel water-cooled plate; the rough element structure is arranged at the rear half of the parallel arranged micro flow channels to adjust flow resistance, so that pressure drops of the front half of the flow channels are approximately equal; refrigerant enters the flow collecting box through the fluid inlet of the micro-channel water-cooled plate, flows through the rough element structure, converges in the flow converging box and is discharged from the water-cooled plate through the fluid outlet of the micro-channel water-cooled plate. The method and device improve the problem of uneven flow distribution in the micro flow channels of the micro-channel water-cooled plate and improve temperature uniformity of the water-cooled plate. The method and device introduce the rough element structure, realize flow equalization effect, enhance fluid disturbance, destroy thermal boundary layer and improve convective heat transfer effect of the water-cooled plate.

The invention belongs to the technical field of chemical reaction equipment, and particularly relates to a lateral flow catalyst bed layer structure which comprises a shell assembly, a plurality of feeding assemblies are evenly arranged in the shell assembly in a staggered mode, a plurality of adjusting assemblies are evenly arranged in the shell assembly, and all the adjusting assemblies correspond to the feeding assemblies; the shell assembly comprises a shell, a reaction cavity is formed in the shell, a catalyst is arranged in the reaction cavity, and a plurality of heat conduction columns are arranged in the reaction cavity in a penetrating mode. According to the catalyst bed structure, the flowing path of reactants is improved, disturbance in the reaction cavity is increased, the reactants are promoted to be evenly distributed, in addition, the opening area of the discharging holes can be adjusted, transverse vibration of the catalyst can be achieved, the flowing stability of the reactants in the catalyst is further guaranteed, and the reaction is promoted to be carried out in the positive direction.

The invention relates to the technical field of waste gas incineration treatment, and particularly discloses a tail gas combustion furnace which comprises a furnace body, a first gas inlet and a second gas inlet are formed in the furnace body, a mixing mechanism, a gas inlet assembly and an adjusting piece are arranged in the furnace body, the mixing mechanism comprises a connecting piece and a plurality of mixing pieces, a connecting shaft is further coaxially arranged in the furnace body, and the connecting piece is arranged on the connecting shaft in a sleeving mode. The mixing pieces are arranged on the peripheral side of the connecting piece, the first air inlet is connected with the connecting piece through an air inlet channel, the connecting piece is provided with a plurality of connecting holes communicated with the interiors of the mixing pieces, the mixing pieces are provided with air outlet holes, the air inlet assembly comprises an air inlet cavity and a movable piece, the second air inlet is communicated with the air inlet cavity through an air inlet pipe, and the connecting shaft is sleeved with the air inlet cavity. The movable part is movably arranged in the gas inlet cavity, the gas inlet cavity and the movable part are provided with movably opposite through holes, a flow guide cavity is further formed in the furnace body, and the flow guide cavity is arranged in the circumferential direction of the inner wall of the furnace body in an attached mode.

The application discloses a kind of suitable for SCR denitration ammonia injection device and device, including ammonia injection pipe and the ammonia injection port of setting at ammonia injection pipe end, ammonia injection pipe includes ammonia main pipeline, branch pipeline and branch pipeline;Along ammonia main pipeline circumferential direction, equidistantly there are several branch pipelines;In branch pipeline, equidistantly and parallelly there are several vertical branch pipeline branch pipelines;Several branch pipelines are in the same plane, plane vertical branch pipeline;In branch pipeline, there is vertical plane ammonia injection port;Ammonia injection port gas outlet direction is same with ammonia main pipeline inner gas flow direction.The ammonia injection device suitable for SCR denitration designed in the application, including branch pipeline and branch pipeline, ammonia injection pipeline because each part branch pipe length is small, and the difference of branch pipeline diameter is not big, so it can reduce the flow resistance of ammonia in pipeline.

The utility model discloses a bamboo shoot bubbling bath boiling device which comprises a bath boiling box, a driving motor is fixedly installed on one side of the top face of the bath boiling box, the output end of the driving motor drives a spiral blade installed in the bath boiling box to rotate through a synchronous belt wheel set, and through holes and installation cavities are formed in the bath boiling box at intervals. A bamboo shoot collecting plate is arranged below the through hole, a blow-off pipe is fixedly mounted on the bottom surface of the bamboo shoot collecting plate, and a bubbling pipe is mounted in the mounting cavity. According to the utility model, the helical blade is arranged in the bath boiling box, under the driving of the driving motor and the synchronous belt wheel group, the helical blade conveys bamboo shoots and moves from the bamboo shoot inlet to the bamboo shoot outlet while the impurities are screened out through the through holes, and in the conveying process, the impurities on the surfaces of the bamboo shoots, such as chippings and soil, are removed through the through holes. The bamboo shoots can fall to the bottom of the bath boiling box through the through holes and then are discharged through the blow-off pipe, efficient impurity screening in the material conveying process is achieved, and the cleanliness of the bamboo shoots is guaranteed.

The utility model discloses an anti-clogging screw pile used for a trestle in a complex terrain, which comprises an anti-clogging screw pile body, the anti-clogging screw pile body comprises a pile body, the upper end of the pile body is a pile top, and the lower end of the pile body is provided with a pile tip; the grouting holes are formed in the pile body or the pile tip in a penetrating mode or formed in the pile body and the pile tip; the anti-blocking cover is detachably mounted on each grouting hole; and the prestress bearing part is arranged on the outer surface of the pile body and used for increasing the friction force between the pile body and soil and improving the lateral stability and the bearing capacity of the pile. According to the utility model, blockage in the grouting process can be prevented, and the grouting quality and the construction efficiency are ensured; in addition, the anti-blocking cover can prevent sundries such as soil or gravels in the screw pile from entering the grouting pipeline, the purity of the grouting material is guaranteed, the grouting material can be injected into the screw pile more evenly, and the grouting efficiency and quality are improved.

The invention relates to the technical field of perfluorotributylamine preparation, in particular to a perfluorotributylamine production device capable of deep fluorination and a production method thereof.The perfluorotributylamine production device structurally comprises an electrolytic bath body, a mother liquor inlet pipe outwards arranged on one side of the electrolytic bath body, and a heat exchange device used for conducting circulating refrigeration on materials in the electrolytic bath body; a multi-pipeline heat exchange pipe is replaced by a single-pipeline heat exchange pipe, the flowing path is simple, fluid flows in the same pipeline, the flowing speed is uniform, and the phenomenon that in the multi-pipeline design, due to uneven flow distribution, the flowing speed of some pipelines is too low, and local deposition is caused is avoided; and the product flows along the curve of the pipeline, the disturbance and turbulivity of the fluid are increased, the disturbance flow is beneficial to preventing electrolytic products from being deposited on the inner wall of the pipeline, and because the turbulent flow can improve the shearing force of the fluid, effectively washes away sediments, prevents substances from being accumulated in the pipeline, and effectively ensures the heat exchange uniformity and efficiency.

The invention belongs to the technical field of low-temperature propellant space storage, and discloses a thermodynamic exhaust system adopting periodic sweeping injection, which comprises a low-temperature propellant storage tank, a concentric multi-layer heat exchanger is arranged in the low-temperature propellant storage tank, and the concentric multi-layer heat exchanger sequentially comprises a hot layer, a cold layer and a spray layer from inside to outside, the fluid oscillator is arranged at the orifice of the spray layer and periodically sweeps and sprays fluid into the tank, the fluid in the cold layer cools the fluid in the hot layer and the fluid in the spray layer, and cold energy is fully utilized, so that the temperature and pressure in the storage tank are reduced. In addition, the concentric multi-layer heat exchanger enables the spray layer, the cold layer and the hot layer to be made into a heat exchanger device, cold energy of the cold layer can be further utilized and transmitted to the spray layer, and the energy utilization rate is improved. The fluid oscillator can enable the fluid to be periodically swept and ejected, disturbance to a flow field in the storage tank is further enhanced, and heat exchange of the fluid is promoted.

The present application discloses a domestic waste incinerator and a method for controlling secondary air distribution in a furnace, wherein the angle between the front arch wall surface of the furnace and the horizontal is 25°, the angle between the rear arch wall surface and the horizontal is 35°, a flame folding angle and an ignition burner are arranged on the rear arch, the inlet of the first flue is located in the front middle part of the furnace, the first flue is surrounded by water-cooled walls, the water-cooled walls extend to the middle part of the refractory furnace wall along with the front arch, the rear arch, the side wall and the flame folding angle, a secondary air duct group is arranged at the lower part of the first flue, and the air outlet of the secondary air duct group forms a double elliptical flow field in the first flue. It can be seen that the design method of the secondary air duct of the flue has a stronger anti-interference ability than the double tangent circle, and can still increase the flue gas disturbance, improve the uniformity of the flow field and protect the wall surface from overheating when the combustion conditions change frequently. By increasing the inclination angle of the rear arch and increasing the flame folding angle, the stable combustion effect of the furnace is improved, and the newly-entered garbage is easier to dry, precipitate volatiles, and ignite, thereby enhancing the stable combustion ability of the incinerator.

The utility model relates to computer heat dissipation technical field especially is publicize a kind of vertical straight contact type heat tower radiator of evaporation end, including fixed base, fixed buckle, heat pipe, the evaporation end of multiple heat pipe is vertically fixed in fixed base, and the fixed base is fixed on the heat dissipation surface by fixed buckle.Affinity effect lies in: the evaporation end of heat pipe directly contacts CPU surface with vertical mode, and adopts honeycomb matrix type arrangement, breaks the restriction of traditional horizontal layout to heat pipe quantity, and the number of heat pipe that can be accommodated under same area is realized substantial increase, forms a "three-dimensional heat equalizing bucket", effectively reduces thermal resistance, significantly improves heat conduction performance.

The invention relates to the technical field of washing equipment, particularly provides a spray head and washing equipment comprising the spray head, and aims to solve the problem that a treating agent of existing washing equipment is insufficiently dissolved. Therefore, the spray head comprises a shell and a filter screen assembly, a speed increasing channel, a mixing cavity and a clothes treating agent channel communicated with the mixing cavity are formed in the shell, a first gap is formed between the filter screen assembly and the mixing cavity, and water in the speed increasing channel enters the mixing cavity; negative pressure is generated in the mixing chamber, air is sucked in through the first gap, mixed liquid of water, air and the clothes treating agent is formed in the mixing chamber, the filter screen assembly can cut the mixed liquid into micro-foam to be sprayed out from the outlet, and the water, the air and the clothes treating agent are mixed into the mixed liquid through the mixing chamber. The clothes treating agent can be fully dissolved and mixed, then the mixed liquid is cut into micro-foam through the filter screen assembly to be sprayed out from the outlet, and therefore clothes can make full contact with the micro-foam, and the washing efficiency of the washing equipment is improved.