69results about How to "Avoid vortex" patented technology

The invention discloses a ventilation and air exchange device for a green building. The ventilation and air exchange device comprises a ventilation and air exchange box, a mounting plate, a ventilation and air exchange opening, a rotary air disc and fan blades. Mounting plates are fixed to the two ends of the two sides of the ventilation box, fixing pins penetrate through the interiors of the mounting plates, one ends of the fixing pins extend into the green building wall, and ventilation ports are formed in the two ends of the outer side of the ventilation box. According to the ventilation device for the green building, a fan motor is used for driving a linkage shaft to rotate, and a transmission assembly is matched to enable a fan shaft to rotate synchronously, so that two rotating wind discs and a plurality of fan blades are driven to rotate, outdoor fresh air is extracted and fed into the green building, and the ventilation effect is improved. According to the indoor air purification device, vitiated air, harmful gas and microorganisms in a building can be effectively diluted and discharged, so that the indoor air quality is improved, a healthier and more comfortable living environment is provided for people, indoor oxygen can be effectively supplemented, and the freshness and vitality of indoor air are kept.

The invention discloses an ecological cabin airflow regulation control device and method, and belongs to the field of ecological cabin airflow regulation. An air flow adjusting and controlling device of an ecological cabin comprises a cabin wall, and further comprises a circulating unit arranged on the cabin wall and used for exchanging air inside and outside the cabin; the filtering mechanism and the second filtering plate are arranged in the circulating unit and used for blocking impurities in air during exchange, a driving mechanism and a first cleaning mechanism are arranged in the circulating unit, and the driving mechanism can drive the first cleaning mechanism to reciprocate along the filtering mechanism; a flow guide mechanism communicated with the first cleaning mechanism is arranged on one side, close to the filtering unit, of the cabin wall; according to the invention, the problems of non-uniform air distribution, high working intensity of the air filtering assembly, unstable air circulation speed and poor air quality when the ecological cabin is used for adjusting and controlling the air flow can be solved.

The invention discloses a full-bore eccentric ball valve with a flow guide hole, and relates to the technical field of ball valves, the full-bore eccentric ball valve comprises a valve body and a T-shaped valve core, two symmetrically distributed transmission assemblies are arranged outside the valve core, the transmission assemblies are connected with sealing assemblies through second extrusion assemblies respectively, and stepped holes are formed in the two ends of the flow guide hole; sealing pipes are slidably connected into the two stepped holes correspondingly, the two transmission assemblies are connected with the two sealing pipes through the two first extrusion assemblies correspondingly, and a flushing assembly is arranged at the position, located on the outer side of the valve seat, in the second shell. Contact sealing parts of the valve are protected to a certain degree, the situation that the overall sealing effect of the valve is affected due to abrasion is prevented, vortexes, vibration and noise are generated when water flow flows through the valve can be effectively prevented, it is guaranteed that the water flow stably flows through the valve, and in the valve closing and opening process, the sealing effect of the valve is improved. Therefore, the space between the valve seat and the sealing assembly and the space between the valve seat and the sealing pipe can be washed, and impurities can be removed.

The invention discloses a high-efficiency mist-discharging high-capacity atomizing tank which comprises a tank body and a tank cover, the tank cover is detachably arranged at the upper end of the tank body, a mist outlet is formed in the middle of the tank cover, an atomizing core mounting cavity is formed in the lower portion of the mist outlet, an atomizing core is mounted in the atomizing core mounting cavity, and the atomizing core is mounted in the atomizing core mounting cavity. The atomizing core mounting cavity is communicated with the outside through a compressed air inlet, one side of the top of the tank cover is provided with an air supply port penetrating through the top and the bottom, the lower side of the atomizing core is in butt joint with a liquid suction pipe vertically extending to the bottom of the tank body, and a liquid suction channel is formed in the liquid suction pipe; the upper end of the liquid suction channel is communicated with a nozzle at the lower end of the atomizing core, a surrounding part surrounding the atomizing core is arranged in the middle of the lower end of the tank cover, a mist gathering cavity is defined by the surrounding part, and the mist gathering cavity is communicated with the mist outlet through a communication groove. The problems that an existing atomization tank is small in compressed gas flow rate application range and low in atomization efficiency can be solved.

The utility model relates to the technical field of motor reduction gearbox discloses a double motor reduction gearbox of forklift electric drive assembly, including the shell, the inside of shell is provided with the oil cavity, is used for to the inside of oil cavity adds lubricating oil, lubricates to one reduction gear set and second reduction gear set together, the inside of oil cavity is provided with one reduction gear set and second reduction gear set respectively, just the one reduction gear set and second reduction gear set between be provided with the anti -wave board, through the integration two sets of reduction gear set, share the same oil cavity and lubricating system, reduced the shell material consumption, reduce overall volume, promote space utilization, moreover, through the anti -wave board separates the inside of oil cavity one, second reduction gear set, effectively avoid two sets of gear reverse operation produced lubricating oil eddy current and dead zone, in addition, cooperate with the arc fairlead and direct the lubricating oil that gear rotation took part to the meshing area above reduction gear, optimize lubrication effect.

This invention relates to a vehicle air conditioner, and the object of this invention is to improve the assemblability, maintenance, and repairability of a photocatalyst module by improving the intake housing structure, and to reduce air vortices generated at the air intake port side during air intake by the blower and the rumbling noise caused by these air vortices. To achieve this object, the vehicle air conditioner of this invention includes: an intake section that draws in internal and external air to blow them into the interior space of the vehicle; and a photocatalyst module that releases superoxide radicals into the air blown from the intake section into the interior space of the vehicle to purify the air, wherein the photocatalyst module is disposed on the outer surface portion of the downstream side of the blower housing of the intake section, and interference-avoidance recesses are formed on the outer surface portion of the intake housing corresponding to the periphery of the photocatalyst module disposed in the blower housing.

The utility model discloses a far and near light module with a cut-off line distance adjustable function, which comprises a lens, a decorative ring, small iron, a cut-off line baffle, a condenser, a PCB (printed circuit board), a radiator and a support, the lens is used for collimating and imaging light in the module, so that a car lamp further illuminates, the light irradiates farther and brighter, the decorative ring is used for a retainer of a module assembly, and the cut-off line baffle is used for retaining the light in the module assembly. The small iron is used for preventing sunlight from focusing and burning parts in the module, the cut-off line baffle is used for improving the focal length of the passing light, the gradient and chromaticity of the passing light are guaranteed, and the passing light and the passing light are lightened and connected at the same time. The condenser is used for guiding the passing light and the passing light, the PCB is used for controlling starting and stopping of light, and the radiator is used for dissipating heat of the module. The support is used for fixedly installing the decoration ring and the radiator.

The utility model provides a radiating device of a medical endoscope 4K imaging system and light source integrated host, which belongs to the field of medical instruments and consists of a medical endoscope 4K imaging system and light source integrated host, a display, an endoscope camera handle, light guide fibers and an endoscope. According to the scheme, a layer of ultra-thin graphene cooling fin is attached between the cold light source and the cold light source radiator, so that the heat conduction efficiency is higher, heat dissipation can be better achieved, the temperature of the mainboard is prevented from increasing through the partition plate, meanwhile, the partition plate prevents hot air from forming circulation or vortex in the case, and the heat dissipation efficiency is improved. Through the arrangement of the mainboard cooling fan and the cold light source cooling fan, the cooling efficiency is higher, the overall heat of the medical endoscope 4K imaging system and the light source integrated host is reduced, the time delay of the 4K imaging system is shortened, the operation is safer, and the operation efficiency is improved. The problems that in the prior art, due to the fact that heat in a machine case is too large, time delay of a 4K imaging system is greatly increased, and the risk of an operation is increased can be solved.

The environment-friendly recycling device is characterized in that an upper driving shaft is mounted at the upper end of the interior of a main body box through a bearing, and a middle connecting shaft is mounted at the lower end of the upper driving shaft through a clamping groove; the device is provided with the filter basket, so that the filter basket rotates at a high speed, more release agent waste liquid can be separated from impurities under the action of centrifugal force in a short time, the filter efficiency of the device on the release agent waste liquid is improved, the recovery period of the release agent waste liquid is shortened, waste of the release agent waste liquid is avoided, and the device is more environment-friendly; a coarse-hole supporting net is installed to play a role in supporting the internal filter plate, meanwhile, it is guaranteed that the release agent waste liquid penetrating through the internal filter plate can be smoothly discharged out of the filter material basket, the practicability of the device is enhanced, the release agent waste liquid can be filtered through the internal filter plate, the release agent waste liquid is kept clean, and impurities in the release agent waste liquid are removed.

The utility model provides a riding helmet noise reduction microphone which comprises a lower shell, a wind shielding structure is arranged on the bottom face of the lower shell and comprises a first wind shielding structure and two second wind shielding structures, the first wind shielding structure is arranged on the front side of the bottom face of the lower shell, and the two second wind shielding structures are arranged on the left side and the right side of the bottom face of the lower shell respectively. The two second wind shielding structures are respectively connected with the first wind shielding structure, the bottom surface of the lower shell, the inner wall of the first wind shielding structure and the two opposite inner walls of the two second wind shielding structures are matched to form a wind shielding space, and at least one pickup hole is formed in the bottom surface of the lower shell and located in the wind shielding space; and the upper shell is mounted on the top surface of the lower shell. According to the design, most airflow is guided to the periphery, direct impact on the pickup hole is reduced, and therefore the noise reduction capacity of the pickup hole is improved.

The invention relates to an anti-vortex multi-stage pump which comprises a base, an outer cylinder, a support and a motor which are sequentially connected from bottom to top, a multi-stage impeller driven by the motor is arranged in the outer cylinder, an anti-vortex device is arranged at an impeller inlet of the outer cylinder, and the anti-vortex device comprises an anti-vortex plate arranged at the impeller inlet. A non-return device is arranged at an inlet of the water pump, and a pressure and temperature sensor is arranged on the support. According to the anti-vortex multi-stage pump, the anti-vortex device is additionally arranged on the pump, the anti-vortex plate is arranged near the impeller inlet of the base, and vortex is prevented from being generated when the liquid level enters the impeller inlet. Besides, the pressure and temperature sensor is arranged on the support, a non-return device is arranged at an inlet of the water pump, liquid backflow of the system is prevented, pressure and temperature values of the system can be accurately metered, linkage with a motor can be achieved, misoperation is avoided, and the effect of moving by difference can be achieved.

This invention provides a dust removal device and a welding equipment having the same. The dust removal device has a base with a dust collection chamber; a housing is mounted on the base, and the housing's air inlet, air outlet, and dust discharge port are all connected to the dust removal chamber. The housing has an air inlet connected to the air inlet and an air outlet connected to the air outlet, and the dust discharge port is connected to the dust collection chamber. A dust removal assembly is mounted on the housing and located within the dust removal chamber. The dust removal assembly includes a discharge structure and a dust collection structure arranged opposite to each other. The discharge structure is located on the side of the dust collection structure closer to the air inlet. The discharge structure and the dust collection structure are connected to a power source to present opposite electrodes, thereby forming an electric field between the discharge structure and the dust collection structure for collecting impurities. The height H1 of the air outlet and the height H2 of the air inlet satisfy the condition: H2 < H1. This invention effectively solves the problem of poor dust removal performance in the welding process of lithium battery tabs in the prior art.

The utility model relates to the technical field of medical instruments, in particular to a blood vessel anastomosis device which comprises a pair of triangular anastomosis devices, through holes are formed in the anastomosis devices, and anastomosis rings are arranged in the through holes. Coordination needles and coordination holes which are matched with each other are arranged on the opposite faces of the pair of anastomators in a staggered mode, and anastomosis forceps are arranged in a mode of being matched with the anastomators. An embedding device is arranged on the anastomosis forceps, a triangular embedding groove matched with the anastomat is formed in the embedding device, the embedding device is further arranged to be of a telescopic structure, and an adjusting mechanism capable of adjusting the distance between two forceps rods of the anastomosis forceps is arranged at the rotating connecting position of the anastomosis forceps in a matched mode. The end-to-end anastomosis and end-side anastomosis of the blood vessel can be simultaneously adapted, a 45-degree included angle between a donor blood vessel and a receptor blood vessel can be formed in the end-side anastomosis, the design of hemodynamics is met, the effect of blood vessel anastomosis is effectively improved, and the risk of various postoperative complications is reduced.

The utility model relates to a wear-resistant jet nozzle for preventing materials from generating vortex, which comprises a cylinder section and a plugging section, a slurry outlet is arranged on the side wall of the cylinder section close to the plugging section, wear-resistant ceramic layers are arranged on the inner walls of the cylinder section and the plugging section, and a semi-conical spoiler corresponding to the slurry outlet is arranged in the cylinder section. The tip of the semi-conical spoiler faces the open end of the cylindrical section, and first slurry through holes are uniformly distributed in the semi-conical spoiler; a horizontal spoiler is further arranged on the lower side of the semi-conical spoiler, and second slurry through holes are evenly distributed in the semi-conical spoiler. The wear-resistant ceramic layers are arranged on the inner walls of the cylinder section and the plugging section, so that wear of the inner wall of the pipeline can be relieved; and the semi-conical spoilers and the horizontal spoilers are arranged, so that vortex of the slurry can be avoided, abrasion of the inner wall of the plugging section is relieved, and the slurry can be uniformly mixed.

The utility model relates to the technical field of evaporation concentration, disclose a kind of low-temperature heat pump evaporator structure, including reaction component, the reaction component includes bearing frame, the top of bearing frame is fixedly connected with reaction kettle, the outer surface of reaction kettle is threadedly connected with sealing cover, the top of sealing cover is sequentially provided with raw material liquid inlet and concentrated liquid outlet, the bottom of reaction kettle is provided with steam exhaust port.The utility model is rotated by servo motor drive drive rod in cleaning component, and then drive stirring rod to carry out forced flow disturbance to raw liquid and the structure operation of synchronous rotation scraping heating pipe outer surface with drive rod as center of circle of cleaning rod, drive the forced flow disturbance of raw liquid, ensure that heat is evenly distributed and accelerate evaporation, while periodically scraping heating pipe outer surface, prevent dirt deposition, realize the beneficial effect of improving heat transfer efficiency and reducing shutdown maintenance frequency.Stirring rod three groups evenly distributed optimize the fluid dynamics performance, avoid to produce dead angle or vortex.

The invention relates to the technical field of wastewater treatment, in particular to an electroplating nickel-chromium wastewater treatment device which comprises a sewage tank, a water suction pump is fixedly connected to the upper surface of the inner wall of the bottom of the sewage tank, one end of the water suction pump is fixedly connected with a door-shaped pipeline, and the other end of the door-shaped pipeline extends into a flocculation tank. Four square columns are fixedly connected to the four corners of the lower surface of the flocculation tank, stirring assemblies are fixedly connected to the upper surfaces of the tank walls of the two sides of the flocculation tank, and one end of the bottom of each stirring assembly is connected with an anti-condensation assembly in a meshed mode. According to the nickel-chromium electroplating wastewater treatment device, the water pump is matched with the flocculation basin, the sedimentation basin and the filter press, metal impurities such as nickel and chromium contained in wastewater are sequentially neutralized, stripped and filtered, the site requirement of the wastewater treatment device can be reduced through flow matching, and the production requirements of many related industries such as chemical engineering, metal or sewage processing plants are met; operation is convenient, and efficiency is high.

The utility model discloses a gradually-expanding reducing resistance-reducing type kiln system outlet pipeline structure which comprises a bent pipe, a connector ring is connected to the upper end of the bent pipe in a sleeved mode, a diameter-expanding pipeline is installed on one side of the connector ring, a pipe opening is integrally connected to the end, away from the bent pipe, of the diameter-expanding pipeline, a butt joint piece is fixedly arranged on the surface of the diameter-expanding pipeline, and the butt joint piece is connected with the connector ring in a sleeved mode. A connecting piece is fixedly arranged on the surface of the butt joint piece, a hanging ring is movably connected to the interior of the connecting piece, a fixed lantern ring is installed on one side of the interface ring, and a hook is movably connected to the surface of the fixed lantern ring; the diameter of the expanding pipeline is larger than that of the bent pipe, and the expanding pipeline and the bent pipe are in a gradually expanding and reducing mode, so that the change of the diameter of the pipeline is gradually expanded, the smoothness of the pipeline is improved, the resistance loss is reduced, the air flow speed and flow are better coordinated, and then the fan is kept running stably to prevent the stall phenomenon.

The embodiment of the invention discloses implantable peripheral nerve electrical stimulation equipment. The implantable peripheral nerve electrical stimulation equipment comprises a main body part, a battery part and a stimulation part, a controller is arranged in the main body part, the battery part comprises a power supply, a coating film, a charging coil and a first shell, the charging coil sleeves the outer side of the power supply, and the coating film is made of a flexible permanent magnet material and coats the outer surface of the power supply to form a magnetic core of the charging coil. According to the embodiment of the invention, the overall structure of the battery part can be supported and protected through the first shell made of an insulating material, and the efficiency of wireless energy and information transmission between the charging coil and the outside can be improved due to the self-insulating characteristic of the first shell, so that the situation that eddy current is generated on the first shell to cause temperature rise is avoided; through the arrangement of the coating film, the charging coil can be matched with a power supply, a magnetic core structure is formed in the center of the charging coil, the charging efficiency is further improved, a charging magnetic field can be shielded, and eddy current is prevented from being generated on a shell of the power supply.

The utility model relates to an axial flow fan for granary ventilation, which comprises an installation casing, the installation casing is hexagonal, the side wall of the installation casing is provided with a connecting rod penetrating through the installation casing, one end of the connecting rod inserted into the installation casing is provided with a linkage gear, and a hexagonal connecting rod is arranged in the installation casing. The utility model relates to the technical field of granary ventilation equipment. According to the axial flow fan for ventilation of the granary, when wind blows to the side walls of the fan blade fixing plates in the wind outlet direction of the fan, thrust generated by wind power pushes the fan blade fixing plates to deflect, so that the air included angle between the fan blade fixing plates and the back sides of the fan blades is decreased, and then the situation that a large included angle is generated between the back sides of the fan blades and incoming flow on the back sides of the fan blades can be prevented; the vortex is effectively prevented from being generated at the included angle between the incoming flow on the back side of the fan blade and the back side of the fan blade, the airflow can be tightly attached to the fan blade, and the situation that the fan stalls is avoided.

The application discloses a manufacturing method of a high-heat-dissipation-efficiency pouring type driving transformer, and belongs to the technical field of power electronic equipment manufacturing. The method aims to solve the technical problems of low heat dissipation efficiency and insufficient long-term reliability of the existing driving transformer caused by the limited heat conduction performance of the pouring material, the simple surface heat dissipation structure and the difficult coordination of internal thermal stress. The method comprises the following steps: constructing a three-dimensional digital model of a reinforced heat dissipation structure with a boss array and a groove array and preparing a corresponding forming die; positioning a magnetic core and a winding as an insert in a die cavity; pouring insulating colloid with different mechanical and heat conduction properties in batches in a vacuum environment; through a segmented curing process, the flexible colloid is fully filled in the internal gap and buffers the stress, and at the same time, the high-heat-conduction rigid colloid forms an external main body and a heat dissipation structure, thereby forming an integrated pouring body. The method is used for manufacturing the driving transformer suitable for high-power-density and high-heat-dissipation scenes, and can significantly improve the heat dissipation capacity and operation reliability of the driving transformer.

The invention relates to the technical field of vehicles, in particular to a vehicle. The vehicle includes: a cab having a first flow guide surface; the container assembly is arranged on the side, away from the first flow guide face, of the cab in the X direction, the container assembly comprises a container body and a heat exchange unit, the container body is provided with a first side portion and a second side portion which are opposite in the X direction and is provided with a top side portion and a bottom side portion which are opposite in the Z direction, and the heat exchange unit is connected with the container body and provided with a flow guide outer shell face; in the X direction, the flow guide outer shell face is located between the first flow guide face and the top side portion, and the first flow guide face, the flow guide outer shell face and the top side portion are sequentially arranged in the X direction so as to jointly form an airflow guide face. The vehicle provided by the invention can reduce the running resistance of the vehicle, thereby improving the energy utilization rate of the vehicle.

This utility model discloses an automatic separation and collection device for heavy debris in an airflow conveying system, relating to the technical field of airflow separation equipment. The separation body includes a cylindrical cavity with a conical guide hood at the top. A spiral feed plate is located between the outer side of the guide hood and the inner wall of the cavity. A feed pipe is located on one side of the upper part of the cavity, a discharge pipe is located at the top of the cavity, and a discharge port is located at the bottom of the cavity. Corn fibers, being lightweight and highly susceptible to airflow, move upwards more easily with the airflow, while heavy debris, due to gravity and centrifugal force, tends to sink closer to the inner wall of the cavity, significantly improving the initial separation efficiency and reducing the mutual entanglement of corn fibers and heavy debris.

The application relates to the clothes processing technical field, in particular to a heating assembly, a drying module and clothes processing equipment. The heating assembly comprises a heater shell and a heater. The heater shell has a heating cavity, an air inlet communicating with the heating cavity and an air outlet communicating with the heating cavity. The heater shell is used for being mounted on a moisture absorption and dehumidification assembly, and the air outlet faces the moisture absorption and dehumidification assembly. The side wall of the heating cavity is in a smooth structure from the direction of the air inlet to the air outlet. The heater is accommodated in the heating cavity. Since the side wall of the heating cavity is in the smooth structure from the direction of the air inlet to the air outlet, the heater shell can change the flow direction of the regeneration airflow in the heating cavity in a smooth manner, so that vortex is avoided in the heating cavity and kinetic energy loss of the regeneration airflow is avoided, thereby the regeneration airflow can be efficiently blown to the moisture absorption and dehumidification assembly through the heating cavity, and the dehydration efficiency of the moisture absorption and dehumidification assembly can be improved.

The application relates to the technical field of switch cabinet protection, and discloses an anti-condensation switch cabinet, which comprises a switch cabinet body, and circuit elements are arranged in the switch cabinet body; water in the air is condensed on the surface of a condensation fan blade; air with part of the water is removed and then passes through the condensation fan blade into an air exchange fan; air flow blows on the surface of the condensation fan blade, so that the condensation fan blade drives the rotating ring to rotate; at this time, water droplets condensed on the surface of the condensation fan blade are subjected to centrifugal force outward, the water droplets move along the surface of the condensation fan blade to the direction of the centrifugal force, so that when the equipment is in the external working condition of high humidity, the air exchange system can effectively prevent the high-humidity air outside from being sucked into the switch cabinet, the air humidity in the cabinet is prevented from continuously increasing, the condensation phenomenon is prevented from being intensified, the insulation resistance is prevented from greatly decreasing, and the insulation protection capability of the equipment is prevented from continuously decreasing.

This utility model discloses a light source module with uniform heat dissipation, relating to the field of heat dissipation devices. The light source module includes: a lamp body, a heat dissipation pipe, an air guide shell, and a first heat sink. A first heat source and a second heat source are located on the left and right sides of the lamp body. The heat dissipation pipe includes a first section and a second section. The air guide shell includes an air duct, an air inlet, a first air outlet, and a second air outlet. The air duct has a recessed internal structure. The first air outlet is located on the left side of the air duct, the second air outlet is located on the right side of the air duct, and the air inlet is located in the middle of the air duct. The first section of the heat dissipation pipe is attached to the first heat source, and the first heat sink is attached to the second heat source. The air guide shell is attached to the lamp body. By utilizing the heat dissipation pipe and heat sink to absorb and dissipate heat from the heat sources, and in conjunction with the air guide shell, uniform heat dissipation is achieved for heat sources with varying heat levels. Even using a single fan can achieve efficient heat dissipation, reducing operating costs.

The utility model provides a kind of wooden clamp piece structure and transformer, the wooden clamp piece structure includes wooden frame body.The wooden frame body is equipped with accommodating cavity, the accommodating cavity is used to install predetermined iron core and predetermined coil, and the bottom of the accommodating cavity is provided with first flow guide groove, and the top of the accommodating cavity is provided with second flow guide groove.The wooden clamp piece structure and transformer of the application can at least solve the problems of high loss and poor heat dissipation of the transformer in the prior art.

This utility model discloses a cyclone separator for a biomass circulating fluidized bed boiler, comprising a flue gas inlet section, a gas-solid two-phase separation section connected to the flue gas inlet section, a flue gas outlet section connected to the top and bottom of the gas-solid two-phase separation section respectively, and a solid return section. The solid return section includes multiple coaxially connected and fixedly connected solid return straight sections and multiple solid return conical sections, which are arranged at intervals in the vertical direction. Flue gas flows in from the flue gas inlet section, rotates along the inner wall of the gas-solid two-phase separation section, and achieves gas-solid two-phase separation through centrifugal force. The gas phase flows out through the flue gas outlet section, and the solid phase is returned from top to bottom through the solid return section. Through segmented and optimized solid return path and gas-solid separation flow field, the intermittent blockage problem caused by alkali metal adhesion in traditional cyclone separators is solved, avoiding forced boiler load reduction or shutdown. It is especially suitable for biomass combustion scenarios with complex fuel types and variable ash composition.

The invention relates to an ultra-large flow floor drain structure, comprising a floor drain pre-embedded box, a hair cleaning piece, a floor drain core and a floor drain quick-release cover, wherein the hair cleaning piece is arranged below the floor drain core, a guide curved surface is arranged on the inner side of the hair cleaning piece, the vertical section of the guide curved surface comprises a fastest curve, the hair cleaning piece is connected to the floor drain core via a return piece, the floor drain core is sealed and connected to the floor drain quick-release cover via the return piece, a plurality of guide columns are fixedly connected to the inner surface of the floor drain pre-embedded box, a plurality of guide column holes are opened on the surface of the hair cleaning piece, the guide columns penetrate the guide column holes, the hair cleaning piece is clamped with the floor drain pre-embedded box via a clamping piece, a full-caliber pipe water passing mode is adopted to form siphon drainage, rapid drainage is achieved, hair entanglement is prevented during drainage, hair dirt can be quickly cleaned, good deodorization, backflow prevention and insect prevention effects are provided, and the application and promotion value is high.

The utility model relates to an efficient overregulation-free cooling crystallization reaction kettle which comprises a reaction kettle body, a driving motor is fixedly installed at the top of the reaction kettle body, a stirring rotating shaft is rotationally arranged at the bottom of an inner cavity of the reaction kettle body, rotating rods are symmetrically arranged on the two sides of the stirring rotating shaft, and the top of the stirring rotating shaft is in transmission connection with the top ends of the rotating rods. A moving ring is arranged in an inner cavity of the reaction kettle body in a sliding manner, screw rods are symmetrically and rotationally arranged on the two sides of the inner cavity of the reaction kettle body, the screw rods are sleeved with the two sides of the moving ring, a jacket is arranged on the outer side of the reaction kettle body in a sleeving manner, a cooling guide pipe is arranged in the jacket, and a water storage tank is fixedly arranged on one side of the reaction kettle body; the water storage tank is connected with the cooling guide pipe through the water guide pump, the radiator is fixedly arranged on one side of the water storage tank, a solution is stirred more sufficiently, cooling liquid enters the jacket after being cooled, the cooling crystallization efficiency is improved, crystals on the inner wall can be cleaned away through the movable ring, and the subsequent crystallization efficiency is improved.

The single-suction type centrifugal impeller comprises the blades, a concave face and a convex face are formed at the upper end and the lower end of each blade respectively, the concave faces and the convex faces extend in the length direction of the blades, and a positive deflection blade top and a negative deflection blade root are arranged at the two axial ends of each blade respectively; a front edge is formed at the concave position along the axial height of a blade channel of the blade, a rear edge is formed at the convex position along the axial height of the blade channel of the blade, and the blade is further provided with an air inlet and an air outlet. The centrifugal fan blade solves the technical problems that in the prior art, traditional centrifugal fan blades are designed in a linear mode or a simple bending mode, so that the working efficiency is low in the actual using process, and noise is large in the using process.