172results 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 an aquaculture wastewater treatment device, which relates to the technical field of wastewater treatment, comprising a treatment barrel, wherein a support plate is fixedly connected inside the treatment barrel, a liquid inlet pipe for water intake is fixedly connected to the top of the treatment barrel, a drain pipe for drainage is fixedly connected to the bottom of the treatment barrel, and a bracket is fixedly connected to the bottom of the treatment barrel; a rotating cylinder inside the treatment frame rotates along with the rotation of a reciprocating screw rod, so that the rotating cylinder drives a stirring member to rotate inside the treatment frame, and the sewage inside the treatment frame is stirred clockwise, and at this time, a spray member is driven by a transmission member to rotate counterclockwise, and the spray member sprays a bacterial agent in the opposite direction into the wastewater rotating clockwise, which can effectively avoid the problem of vortex generated by unidirectional rotation, so that the bacterial agent and the wastewater are agitated, thereby intensifying the mixing treatment of the wastewater and the bacterial agent, and improving the mixing effect.

The invention discloses a Czochralski monocrystalline silicon thermal field thermal insulation cylinder, which belongs to the technical field of monocrystalline silicon production, and comprises an upper cylinder body and a lower cylinder body, the inner diameter of the upper barrel is larger than that of the lower barrel, and steps at the inner joint of the upper barrel and the lower barrel are streamlined. The upper end and the lower end of the inner wall of the heat preservation cylinder form rounding oblique angles; a plurality of diversion trenches are formed in the inner wall of the heat preservation cylinder from the upper end to the lower end. The invention can effectively solve the problems of low thermal utilization efficiency of the existing monocrystalline silicon thermal field, pollution of returned gas to silicon liquid, difficult crystallization caused by high oxygen content in crystals and the like.

The invention discloses a ventilation system and method for a forsythia suspensa planting room, and relates to the technical field of plant cultivation ventilation, the ventilation system comprises a greenhouse support frame, and further comprises a blast part and an exhaust part which are fixedly mounted on the greenhouse support frame; the air blowing part is used for blowing air outside the greenhouse into the greenhouse and providing enough oxygen for growth of fructus forsythiae in the greenhouse, the air blowing part comprises an air blowing assembly, a flow dividing assembly, an air volume adjusting assembly and a heating assembly, and the air blowing assembly is used for blowing the air outside the greenhouse into the greenhouse. The fructus forsythiae greenhouse has the advantages that air at the bottom of the greenhouse vertically flows upwards according to the heat conduction principle, then the rising bottom air is brought out of the greenhouse through air flow horizontally attached to the top of the greenhouse, the direction of the air flow in the greenhouse is regular, vortex is prevented from being generated, meanwhile, air blowing and ventilation can be conducted on the roots of fructus forsythiae, and the ventilation effect is good. The ventilation rate of air at the roots of fructus forsythiae is increased, so that the ventilation efficiency is improved.

The utility model discloses a water reducing agent reaction kettle, which relates to the technical field of reaction kettles, and comprises a kettle body provided with a reaction chamber and a feed opening which are communicated with each other; the stirrer is located in the reaction chamber, and the axis of the stirrer and the axis of the kettle body are eccentrically arranged; the rotating assembly comprises a connecting plate, a first driving mechanism, a second driving mechanism and a plurality of connecting rods; wherein the stirrer is rotationally connected with the connecting plate; one end of each connecting rod is rotationally connected with the kettle body, and the other end of each connecting rod is rotationally connected with the connecting plate; the first driving mechanism is used for driving the connecting plate to rotate around the axis of the kettle body; the second driving mechanism is used for driving the stirrer to rotate around the axis of the stirrer; the rotation directions of the first driving mechanism and the second driving mechanism are opposite, so that the stirrer can prevent the materials from forming eddy current while stirring the materials, the diffusion rate of ingredients is increased, and the production efficiency of the water reducing agent is improved.

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 utility model relates to a wellhead blowout preventer, in particular to a blowout preventer for a composite continuous pipe for a high-temperature gas injection well, which is used for overcoming the defects that the existing blowout preventer for thermal recovery of heavy viscosity heavy crude oil adopts a rubber sealing element, is poor in high-temperature resistance and cannot seal high-temperature steam. The blowout prevention device for the composite continuous pipe for the high-temperature gas injection well comprises a movable sealing part, a ram blowout prevention part and a cooling assembly, the functions of a blowout prevention box and a ram blowout preventer are integrated, and a cooling circulation liquid channel and a metal heat dissipation device are integrated in the cooling assembly; the technical problem that an existing blowout preventer cannot be suitable for a high-temperature steam medium is solved.

The utility model discloses a top air outlet type air conditioner outdoor unit, and relates to the technical field of air conditioners. The top air outlet type air conditioner outdoor unit comprises a machine shell, an outdoor heat exchanger, a compressor and an outdoor fan. The outdoor fan comprises a hub and blades arranged on the peripheral face of the hub. Each blade comprises a blade root, a blade top, a front edge and a rear edge; the blade root is connected with the hub; the blade top is radially far away from the hub relative to the blade root; the front edge is located at the front end of the blade rotation direction and connected with the blade top and the blade root. The tail edge is located at the rear end of the blade rotation direction and connected with the blade top and the blade root. The trailing edge is limited to form a trailing edge contour line; the trailing edge profile curve comprises a first bent part and a second bent part, the first bent part protrudes towards the side away from the leading edge, and the second bent part sinks towards the side close to the leading edge, so that a noise reduction notch is formed; and the first bent part and the second bent part are connected in sequence. According to the top air outlet type air conditioner outdoor unit, the blade tail edge shape and / or the blade shape are / is optimized, so that noise generated when the fan operates is reduced.

The invention belongs to the technical field of superconducting magnets, and discloses a fast excitation winding component for a dry-type cooling superconducting magnet, and coil outer wall cold conduction sheets and coil inner wall cold conduction sheets in the component are of strip-shaped arc-shaped structures. The upper metal pressing block and the lower metal pressing block which are high in heat conductivity are matched to be fixed to the insulation cold conduction disc made of insulation materials high in heat conductivity, and effective fixing of the coil outer wall cold conduction piece and the coil inner wall cold conduction piece is achieved. Therefore, it is ensured that the cold conduction sheets on the inner wall of the coil can generate coordinated deformation with the superconducting coil without stripping in the excitation process, electrical insulation is achieved between the cold conduction sheets on the outer wall of the coil and the cold conduction sheets on the inner wall of the coil, and the problems of cold conduction failure of the inner wall of the coil in the excitation process and electrical communication of large-area metal cold conduction materials are solved. The vortex induced by the superconducting magnet in the cold conduction structure in the excitation process is blocked, heat conduction between the coil outer wall cold conduction sheets and the coil inner wall cold conduction sheets is achieved, and the cold distribution is optimized.

The utility model relates to the technical field of grouting construction equipment, and particularly discloses a grouting device which is characterized in that rollers are arranged at the bottom of a base; the stirring barrel is hollow and is arranged on the base; the first motor is arranged above the stirring barrel, and an output shaft downwards extends into the stirring barrel to be connected to the transverse connecting rod; the stirring rod is vertically arranged at the right end part of the transverse connecting rod; a plurality of fan blades are arranged on the stirring rod; the fixed rod is vertically arranged in the stirring barrel, the lower part of the fixed rod is connected to the bottom of the stirring barrel, a plurality of baffles are arranged on the fixed rod, and the baffles and the fan blades are staggered; the feeding hole is formed in the upper part of the stirring barrel; the discharging hole is formed in the lower part of the stirring barrel; the grouting head is connected to the discharging opening through a grout conveying pipe. The stirring rod and the fixed rod are arranged in the stirring barrel, the fan blades on the stirring rod are used for stirring materials, and the baffle on the fixed rod is used for preventing vortex, so that the stirring is more uniform, and the stirring effect is improved.

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.

The invention belongs to the field of engines, and particularly relates to an underwater gas-liquid two-phase ramjet engine based on phase change and a working method thereof.The underwater gas-liquid two-phase ramjet engine based on phase change comprises a liquid nitrogen injector, a diffusion cavity and a spraying cavity, the spraying cavity is of a gradually-shrunk structure, one end of an inlet of the spraying cavity communicates with the diffusion cavity, and the sectional area of the inlet of the spraying cavity is smaller than that of the diffusion cavity; a water inlet is formed in the diffusion cavity; the liquid nitrogen injector is used for injecting liquid nitrogen into the spraying cavity, and the range of the mass ratio of water entering from the water inlet to the liquid nitrogen injected by the liquid nitrogen injector is 1000-300000. The underwater gas-liquid two-phase ramjet engine based on phase change is a novel thrust driving mode based on phase change, and has the characteristics of high specific impulse, low energy consumption, cost saving and environmental protection.

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 present invention discloses a magnetic-assisted plate-fin heat exchanger baffle head structure and an adaptive adjustment method. It includes a head shell, a head inlet pipe, a baffle and an electromagnet; the head inlet pipe is arranged at the upper end of the head shell and communicates with the inlet end of the head shell; the bottom of the head shell serves as the head outlet surface, and multiple rows of outlet channels are evenly spaced on the head outlet surface; multiple baffles with variable inclination angles are evenly installed between the front and rear side surfaces of the head shell through baffle shaft seals; three electromagnets are installed on the left and right sides of the head shell. The present invention obtains an adaptive baffle inclination angle at different head inlet flow rates through the action of magnetic force, so that the head can obtain a uniform outlet flow rate at different inlet flow rates.

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 invention discloses a semi-solid metal slurry preparation device based on vibration and collision, and relates to the technical field of semi-solid metal processing.The preparation device comprises a fixed support, a crucible, a vibration unit, a stirring unit, a lifting mechanism and a temperature control unit. According to the viscosity and actual requirements of different slurries, the stirring unit is adjusted, the lifting mechanism descends, the vibration unit, the stirring unit and the temperature control unit are inserted into the alloy melt, the stirring unit and the vibration unit are started, the alloy slurry is stirred and vibrated, the vibration unit can enable spherical particles to be distributed more uniformly during stirring, and the stirring effect is better. And the temperature control unit releases cooling liquid or gas to cool the alloy melt, the temperature of the alloy slurry is detected through the temperature control unit, and after the expected temperature is reached, the stirring unit, the vibration unit and the temperature control unit stop working.

The utility model discloses a composite chemical packed tower convenient to install, which belongs to the technical field of chemical packed towers, and comprises a lower tower body, an upper tower body is arranged above the lower tower body, a plurality of middle tower bodies are arranged between the upper tower body and the lower tower body, a demister is arranged at the upper half part of the inner circumference of the upper tower body, and a plurality of middle tower bodies are arranged between the upper tower body and the lower tower body. Packing layers are arranged between the inner peripheries of the upper tower body and the plurality of middle tower bodies, liquid distributors are arranged at the tops of the packing layers at the upper part and the lower part, liquid collectors are arranged at the bottoms of the packing layers, and groove type liquid distributors for filtering liquid are arranged at the tops of the packing layers in the middle; fixing rings facilitating connection are fixed between the adjacent sides of the lower tower body, the upper tower body and the multiple middle tower bodies. According to the combined type chemical packed tower convenient to install, through the splicing design, installation can be conveniently and rapidly conducted, the multiple threaded columns and the threaded pipes are matched for supporting, opening is convenient, and the interior is maintained and cleaned.

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 utility model discloses an air supply ceiling structure of an operating room, and relates to the technical field of medical air supply ceilings. The air supply device comprises the shell and the filtering mechanism, the air supply bin is formed in the shell, the micro-dust sensor, the sliding block and the sliding groove are arranged, the air quality in the air supply bin can be monitored in real time through the micro-dust sensor, the cleanliness of air in an operating room is ensured, and when pollution exceeds a preset threshold value, the air supply bin is opened, and the air supply bin is closed. When the filter mechanism is disassembled and assembled, the sensor triggers the alarm system in time to remind an operator to perform necessary maintenance, each filter mechanism can be disassembled and assembled independently, maintenance personnel can perform maintenance work more quickly and more accurately, the filter mechanisms are assembled and disassembled very conveniently through the sliding blocks and the sliding grooves, and the maintenance efficiency is improved. The arrangement of the flow equalizing film is beneficial to uniformizing the air flow filtered by the filter screen, and the wave-shaped flow dispersing plate can effectively reduce the noise generated in the flowing process of the air flow.

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 invention discloses a locomotive pump technology, and aims to provide a locomotive pump damping and noise reduction device and an operation method thereof, the technical scheme is that the locomotive pump damping and noise reduction device comprises a pump body, the pump body comprises a volute, an impeller and an inlet section, the impeller is arranged to be a staggered impeller assembly, and the number of blades of the staggered impeller assembly is eight. The blades are arranged in a staggered mode, the distances between the blades are designed through a mathematical model or an experiment optimization result, the distances between the blades are sequentially staggered to form staggered arrangement, the sum of the distances between every three blades is 90 degrees, the distance between two blades is 47 degrees, and the distance between the other two blades is 43 degrees, so that better pressure distribution and noise reduction effects are achieved; compared with the prior art, the locomotive pump damping and noise reduction device has the advantages that by adopting the design of the staggered impeller assembly, the impeller in the pump body can effectively reduce the disturbance of water flow in the operation process, so that the vortex and fluid vibration in the pump body are reduced, and the mechanical noise is further reduced; the invention is suitable for the technical field of locomotive pumps.

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.