65results about How to "Low flow resistance" patented technology

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

This utility model discloses a split-type GIL busbar housing, which relates to the field of power engineering technology. The split-type GIL busbar housing includes an end cover and a busbar unit. The outer wall of the end cover is fixedly connected to the inner wall of the busbar unit. The busbar unit includes a unit shell, which constitutes the main structure of the busbar unit. An air filter is fixedly connected to the inner wall of the unit shell. The air filter effectively filters dust and other impurities from the outside air, preventing them from entering the busbar unit. A male connector is fixedly connected to one end of the inner wall of the unit shell, and a female connector is fixedly connected to the other end. Through the cooperation of the male and female connectors, rapid connection and separation between multiple busbar units can be achieved.

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 valve assembly, heat exchange device and air conditioner, valve assembly includes: valve island, the flow passage is defined in the valve island, and the valve island forms with the first interface, valve core interface and flow passage interface who communicate with flow passage, and valve core interface is located between the first interface and flow passage interface, expansion valve, expansion valve is installed in the valve core interface position, and expansion valve is communicated between the first interface and flow passage interface, filter assembly, filter assembly is located in the flow passage, and is located between the first interface and valve core interface, and filter assembly forms a plurality of filter holes, and a plurality of filter holes include a plurality of first filter holes and a plurality of second filter holes, and the equivalent diameter of first filter hole is different with the equivalent diameter of second filter hole. According to the valve assembly of the utility model, can effectively filter the refrigerant that flows through in flow passage, can realize the fractional filtration of the impurity in refrigerant, improves the filtering effect and filtering efficiency, can also reduce the flow resistance, guarantees that refrigerant passes through valve assembly normally smoothly.

This application belongs to the technical field of cooling equipment, and particularly relates to a device for improving the power generation efficiency of a waste heat generator set by cooling. The device includes a condenser, an inlet water pipe at the condenser's inlet, a cooling pipe on the inlet water pipe, at least one heat exchange component on the cooling pipe, and a ventilation cooling system or a liquid cooling system on the outside of the cooling pipe. The ventilation cooling system or liquid cooling system works in conjunction with the cooling pipe to lower the temperature inside the cooling pipe. This application, by installing a cooling pipe on the inlet water pipe and dissipating heat from the cooling pipe, lowers the temperature of the circulating water flowing through the cooling pipe, thereby increasing the vacuum degree of the condenser and thus improving the power generation efficiency and output of the waste heat generator set.

This invention discloses a nitrogen-driven pneumatic directional drilling equipment for downhole cuttings removal in soft coal seams, comprising a nitrogen drive mechanism and a directional drilling rig. The directional drilling rig has a directional drill string assembly structure, which includes a drill rod. A probe outer tube is coaxially sleeved inside the drill rod, and a measuring probe is coaxially sleeved inside the probe outer tube. The measuring probe is used to measure the gas flow rate and pressure in the borehole. An annular downward air chamber for nitrogen gas flow is formed between the inner wall of the probe outer tube and the outer wall of the measuring probe. An air inlet is opened on the outer wall of the drill rod at the lower part, and an annular upward air chamber for nitrogen gas flow is formed between the inner wall of the drill rod above the air inlet and the outer wall of the probe outer tube. A trumpet-shaped wind shield, wider at the bottom and narrower at the top, is connected to the outer wall of the drill rod above the air inlet. This invention also discloses a corresponding borehole cuttings removal method. This invention significantly reduces the resistance to airflow, achieving faster drilling speeds and removing more cuttings under the same air volume and pressure.

The utility model discloses a valve mechanism of micro -fluidic chip, including the upper valve disc of installing in the inside of micro -fluidic chip, the integral molding of a plurality of connecting columns of upper valve disc bottom end and the integral molding of a plurality of connecting column bottom end lower valve seat, the inside of lower valve seat is provided with a plurality of both ends all through to the arc drainage cavity of lower valve seat outside. Upper valve disc, lower valve seat in the utility model are driven by outside micro -motor and rotate in micro -fluidic chip, and the arc drainage cavity in lower valve seat is communicated with the corresponding flow passage in micro -fluidic chip, and the elastic retreat -stopping structure, the anti -slip groove maintain the rotation angle of upper valve disc, lower valve seat.

This utility model relates to a water circuit component and a coffee machine, belonging to the field of coffee brewing. The water circuit component is characterized by comprising: a liquid supply component, which has a liquid storage chamber; a first heating component, which is connected to the liquid supply component and is used to heat the flowing liquid; an adapter, which is connected to the first heating component; a coffee brewing component, which is connected to the adapter; a liquid dispensing component, which is connected to the coffee brewing component; and a steam output component, which is connected to the adapter and the water circuit component. This simplifies the water circuit layout, reduces pipe bends and complex connections, lowers liquid flow resistance, and ensures that the liquid can flow quickly and stably to each component. The steam output component, connected to the adapter, can utilize the heated liquid to generate steam for operations such as frothing milk and heating beverages.

The utility model relates to a ventilation equipment field provides a kind of air duct assembly, air conditioning system and vehicle.Wind channel component includes air supply device, air supply device includes wind box, and wind box is opened with air inlet and air outlet, air inlet is provided with filter piece, and the position corresponding with air inlet in wind box is provided with air guide piece;Distribution box, fluid communication is in air outlet, and distribution box is provided with valve group, and distribution box includes first air duct, second air duct and third air duct, first air duct is fluid communication with the driver's room of vehicle, second air duct is fluid communication with the traction motor cabin of vehicle, third air duct is fluid communication with the passenger room of vehicle, and valve group is used to distribute the air intake of first air duct, second air duct and third air duct.The air duct assembly can make the airflow output of each air duct stable, avoid the air supply fluctuation caused by external wind pressure variation, ensure the comfort of driver's room, passenger room and the heat dissipation effect of traction motor cabin, improve the reliability of vehicle operation, simplify the structure of air duct assembly.

A water-cooled plate structure for cooling high-power-density power electronic devices and its design method based on SIMP topology optimization are disclosed. The structure includes a water-cooled plate body with an inlet, an outlet, and a flow channel region. The flow channel region includes an inlet guiding region and a parallel flow channel region. The inlet guiding region contains several double-elliptical guiding structures arranged in a needle-fin array. The parallel flow channel region consists of several dispersed independent flow channels, each corresponding to a heat source region of a chip. This invention, through the coordinated design of the inlet guiding region and the parallel flow channel region, achieves efficient heat dissipation and good temperature uniformity while ensuring low flow resistance, meeting the heat dissipation requirements of high-power electronic devices.

The utility model relates to petroleum production equipment technical field especially discloses a kind of annular high-pressure manifold, including high-pressure discharge component, high-pressure discharge component is arranged at the both ends of fracturing pump and with fracturing pump forms annular pipeline closed loop, further including protection component, protection component is arranged at high-pressure discharge component side.The utility model is reduced by using annular manifold as a whole, the flow resistance of fracturing fluid in fracturing pump and manifold, with buffer, reduce energy loss, make pressure boost faster, balance the vibration brought by inside stroke of fracturing pump and have safe fire extinguishing function.

This invention discloses a triple eccentric butterfly valve with a compensated double-seal function, belonging to the field of butterfly valve technology. It includes a valve body, valve shaft, valve core assembly, compensation assembly, flange tube, and control unit. The valve shaft and valve body are rotatably connected. There are two sets of flange tubes, each securely connected to one side of the valve body. The valve core assembly is located inside the valve body and is securely connected to the valve shaft. The compensation assembly is also securely connected to the valve core assembly. The control unit is securely connected to the upper end of the valve body. Multiple grooves are evenly distributed on the surface of the valve body. This invention compensates for the primary sealing effect by utilizing the change in water flow impact force during the butterfly plate closing process. This compensation reduces friction between the sealing ring and the butterfly plate during closing, and after the butterfly plate closes, the water pressure increases the compressive force between the butterfly plate and the sealing ring, greatly improving the sealing effect.

The utility model relates to transformer monitoring technical field discloses a kind of oil extraction devices outside transformer oil pit, including oil pipe, fireproof groove box, special oil extraction port and oil sample valve box;The one end of oil pipe is connected with the oil outlet of transformer body, and the other end of oil pipe is connected to inside oil sample valve box;Special oil extraction port is provided outside oil sample valve box, and special oil extraction port is wall structure, and the wall structure is arranged at the fire wall outside transformer;The fireproof groove box is square tubular, and is surrounded along the full length of oil pipe arrangement.This utility model solves the security risk and efficiency bottleneck of traditional sampling mode synchronously by space isolation and dynamic protection, and provides whole-process protection for oil sample fidelity;It greatly improves the safety protection level of operating personnel and the safety of oil extraction equipment, simultaneously improves the on-site operation emergency disposal capability, reduces the personal and material losses caused by accidents, and has high economic and social benefits.

This application discloses a clothes dryer, including a housing, a door, a drum, a drying duct, and at least two fixing members. The interior of the housing forms a receiving cavity; the door is rotatably connected to the housing to open or close the receiving cavity; the drum is rotatably disposed within the receiving cavity, and the interior of the drum forms a drying chamber. An air inlet is provided on the bottom wall of the drying chamber, and an air outlet is provided within the drying chamber. The drying chamber is configured such that, during the drying of clothes, the gas within the drying chamber flows along a first direction from the air inlet towards the air outlet; the drying duct is disposed within the housing and outside the drum, with one end connected to the air inlet for introducing hot air into the drying chamber; at least two fixing members are spaced apart on the inner peripheral wall of the drying chamber, and the at least two fixing members are used to clamp different parts of the clothes, causing the clothes to unfold within the drying chamber, with the unfolded plane intersecting the first direction. This clothes dryer can solve the problem of low efficiency when drying single garments, improving the drying efficiency of single garments.

The utility model discloses a filter assembly, heat exchange device and air conditioning system, the filter assembly includes: the mounting seat, the mounting seat has the installation cavity, filter piece, filter piece installs in the installation cavity and is used for carrying out the filtration to the medium that flows through the installation cavity, filter piece includes filter body, and the filter body is cover body structure, and the outer peripheral surface of filter body is equipped with the impurity collection groove to the installation cavity cavity wall, and the impurity collection groove is recessed to the inside of filter body. According to the filter assembly of the utility model embodiment, by setting up the impurity collection groove on the outer peripheral surface of filter body, can collect the impurity after filtering in the impurity collection groove in the process that the medium flows through the filter assembly, makes the impurity not easy to accumulate in each place of filter body even to block the filter hole, is favorable to reduce the flow resistance at the filter assembly, improves the filtration efficiency of filter assembly.

The utility model discloses a water surface garbage cleaning ship relates to water surface garbage cleaning field, aims at solving the problem of low efficiency of traditional cleaning mode, salvage ship easy to block. The cleaning ship includes the hull, and the first garbage collection device is established to the tail part of ship body, and the second garbage collection device is established to the front part, and the first garbage collection device contains garbage collection warehouse and garbage collection cutting device, and the drainage cutting unit of garbage collection cutting device can smash the garbage, and the collection box is equipped with the filter water body of orifice plate, and the second garbage collection device contains a pair of opposite rotation's collection wheel and conveyor belt device, and the collection wheel gathers the garbage and is transported to the tail part by conveyor belt, and the streamline suspension piece and propeller are established to the both sides of ship body, and still are equipped with the power supply of solar panel and ocean current power generation device. The cleaning ship can efficiently collect, cut and store the garbage, and is anti -block and energy -conserving, and is suitable for river, lake surface and other water area garbage cleaning.

The utility model discloses a kind of low wind resistance printing machine hot air energy-saving system, belong to the field of printing machine, and the system mainly includes drying oven, air heating assembly, air intake component, heat recovery component and exhaust component. The air heating assembly includes heating box, its internal electric heating assembly and air intake temperature detection component. Heating box air intake end is connected air intake pipe through flow guide pipe. The air intake pipe is set through heat recovery component, and exhaust component is equipped on heat recovery component;The air intake temperature detection component is automatically adjusted according to the temperature of the preheated airflow entering heating box, and the heating power of electric heating assembly. High-temperature exhaust gas discharged by exhaust component flows through heat recovery component, and its heat is transferred to fresh air intake flowing through heat recovery component, and the airflow after preheating enters heating box, and its temperature is sensed by air intake temperature detection component, so as to dynamically adjust the power of electric heating assembly. The system effectively recycles and utilizes drying waste gas waste heat, and significantly reduces electric heating energy consumption.

The application discloses a servo cut-off valve group, which comprises a first valve body and a second valve body integrated on a valve seat. Both the valve bodies are provided with valve cavities, and the valve cavities are internally provided with valve spools driven by a servo motor through a screw rod. The valve bodies are provided with outer ring channels communicated with inlet and outlet of the valve seat on the side surfaces, the outer ring channels are communicated with the valve cavities through a plurality of uniformly distributed lateral flow channels, and the inner walls of the valve cavities are further provided with inner ring channels. The longitudinal flow channels at the bottoms of the two valve cavities are communicated with each other through channels in the valve seat. When the two valve spools synchronously rise above the lateral flow channels, fluid can sequentially pass through the flow channels, and the valve is opened; when the two valve spools synchronously descend to completely cover the lateral flow channels, the valve is closed. The two valve cavities are communicated at the bottoms to form a pressure balance cavity, so that the valve spools are hardly subjected to axial thrust when the valve is closed, and high pressure is converted into sealing force in the radial direction of the valve spools, thereby fundamentally solving the high pressure leakage problem of traditional cut-off valves, and the application is especially suitable for high pressure equipment such as filter presses.

The application discloses a transcritical CO2 air source heat pump system and a control method thereof. The transcritical CO2 air source heat pump system comprises a carbon dioxide compressor, a gas cooler, an electronic expansion valve, an outdoor fan, a cold storage device, a heat storage water tank, a high-temperature heat accumulator, a low-temperature heat accumulator and a floor buried pipe heat exchanger. The gas cooler comprises a first working medium pipeline and a first heat exchange pipeline for realizing heat exchange. The cold storage device comprises a second working medium pipeline and a second heat exchange pipeline for realizing heat exchange. The heat storage water tank comprises a hot end heat exchange pipeline and a cold end heat exchange pipeline for realizing heat exchange. The transcritical CO2 air source heat pump system can be controlled to be in various working conditions, such as single hot water production, refrigeration and hot water production, single heating, heating and hot water production and the like, by controlling the opening and closing of each component and valve, and is integrated and multipurpose to adapt to different requirements.

This utility model discloses a breakaway valve with low flow resistance characteristics, comprising: a first valve, a second valve fixedly connected to one end of the first valve, the first valve and the second valve including a transition chamber, a buffer chamber fixedly connected to the other end of the transition chamber, a large-diameter valve body fixedly connected to the other end of the buffer chamber, a support frame fixedly connected to the lower surface of the first valve, two fixed rods fixedly connected to the upper surface of the support frame, a side frame fixedly connected to the side surface of the support frame, a fixed plate fixedly connected to the front surface of the side frame, and two springs fixedly connected to the front surface of the fixed plate. Through the cooperation of the transition chamber, the buffer chamber, and the large-diameter valve body, the progressive flow diameter allows the valve inlet and outlet to gradually transition to the larger flow diameter inside the valve, avoiding flow interference caused by abrupt changes, reducing flow resistance, and the large-diameter design increases the channel diameter. The enlarged internal channel ensures that the fluid flows at a higher speed, further improving flow efficiency.

The utility model relates to a cooling structure, turbulence unit and turbine blade relates to aircraft technical field to solve the problem of turbine blade trailing edge cooling performance is poor, radial distribution uneven in the prior art. The cooling structure of the utility model, including turbulence rib and turbulence column, the periphery of turbulence rib sets at least 2 turbulence columns. The utility model can increase the contact area between turbine blade pressure side wall surface and suction side wall surface, thereby enhancing the pressure -bearing capacity of turbine blade, and promoting structural strength.

The application provides a supporting structure for landslide emergency treatment and a use method, and belongs to the technical field of landslide emergency treatment. The supporting structure comprises an anchor rod, a connecting mechanism is arranged on the anchor rod, the connecting mechanism comprises hollowed-out discs one, two and three which are fixedly sleeved on the anchor rod, the diameters of the hollowed-out discs one, two and three are sequentially reduced, a plurality of connecting rings are fixedly sleeved on the anchor rod, and grooves are arranged on the anchor rod corresponding to the connecting rings. The hollowed-out discs one, two and three and the connecting rings are fixedly sleeved on the anchor rod, the contact area of the anchor rod and the grouting body is increased through the hollowed-out discs one, two and three and the connecting rings, the connecting strength of the anchor rod and the grouting body is improved, the pull-out resistance of the anchor rod is increased, and therefore the support of the side slope is more stable and reliable.

This utility model relates to the field of air handling equipment technology, specifically an airflow regulating device for an air handling equipment. The device includes a purification box with an air inlet slot at the top. A suction fan is rotatably connected to the bottom of the inner wall of the air inlet slot. A connecting block is fixedly connected inside the air inlet slot and above the suction fan. Airflow regulating plates are symmetrically arranged on the outer side of the connecting block. A connecting rod is fixedly connected to the end of each airflow regulating plate away from the connecting block. The end of each connecting rod away from the airflow regulating plate extends to the outer side of the purification box and is fixedly connected to a gear. A gear ring is rotatably connected to the outer side of the purification box, and the gears mesh with the gear ring. Closing slots are provided on both sides of the airflow regulating plates. The beneficial effect of this utility model is that the motor drives one of the gears to rotate, causing the gear ring to link all the gears, enabling precise control of the rotation angle of the airflow regulating plates and achieving precise airflow regulation to meet the precise airflow requirements of different usage scenarios.

The utility model relates to EGR air outlet pipe technical field especially relates to a kind of anti-deformation EGR air outlet pipe assembly with reinforcing rib, including input end flange, anti-deformation component is sleeved in the input end flange, output end flange is sleeved in the right part of anti-deformation component, the right end edge of input end flange and the right end edge of output end flange are all opened several left and right through fixed holes, clamping component is sleeved in the middle part of anti-deformation component.The utility model relates to a kind of anti-deformation EGR air outlet pipe assembly with reinforcing rib, the main reinforcing rib and auxiliary reinforcing rib of annular array distribution on the outer surface of air outlet pipe inner tube, and the main clamping groove, auxiliary clamping groove of air outlet pipe outer tube inner wall are mutually clamped, form stable three-dimensional support structure, with the high rigidity of main reinforcing rib and auxiliary reinforcing rib, external force is evenly dispersed, effectively limit the deformation of air outlet pipe inner tube and air outlet pipe outer tube, keep pipeline structure complete, prevent exhaust leakage due to deformation.

The embodiment of the present application provides a kind of infusion tube assembly and infusion equipment.The infusion tube assembly is applied to the infusion equipment with infusion tube, and the infusion tube assembly includes joint, infusion tube and silica gel tube.The first channel for liquid flow is formed in the inside of joint, for being communicated with one end of first channel;The second channel for liquid flow is formed in the inside of silica gel tube, and the second channel is communicated with the other end of first channel, and the hardness of silica gel tube is lower than the hardness of infusion tube;The joint and silica gel tube are integrated, so that the joint is communicated with silica gel tube and infusion equipment.The infusion tube assembly and infusion equipment provided by the embodiment of the present application set up the integrated structure of joint and silica gel tube, do not need to be installed by adhesive, can reduce the process of assembly, improve the reliability of joint and silica gel tube connection, and guarantee the consistency of production.

The application relates to the technical field of aircraft thermal protection, and particularly discloses a preparation method of a bearing / heat-proof integrated ordered porous sweating composite structure, which comprises the following steps: preparing a three-dimensional fiber preform, phthalonitrile resin pouring, cutting processing and aluminum wire removal; and the bearing / heat-proof integrated ordered porous sweating composite structure comprises an ordered porous sweating structure, a cooling working medium flow cavity and a cooling working medium storage tank, the ordered porous sweating structure is a bearing part of a component main body, and the ordered porous sweating structure is provided with a micropore flow channel for sweating cooling; the ordered porous composite material sweating structure of the application can have higher bearing capacity while the sweating cooling performance is considered, and the specific strength is far higher than that of the commonly-used metal and ceramic sweating materials; the bearing and sweating structure functions are simultaneously realized; the hierarchical structure of the sweating structure can be reduced, the overall thickness of the sweating system is reduced, and the negative weight of the aircraft is greatly reduced.

This invention discloses a fluid flow drag-reducing electrolyzer, comprising an electrolyzer frame and two electrodes, two guide plates, and a diaphragm installed and tightly fitted together within the frame. The electrolyzer frame has an inlet at its bottom and an outlet at its top. The two electrodes are symmetrically distributed on both sides of the diaphragm; each electrode is flattened by rolling. The two guide plates are symmetrically distributed on both sides of the diaphragm and located outside the corresponding electrodes. Each guide plate has multiple guide grooves arranged radially along its diagonal and parallel lines near the corresponding electrode. By optimizing the electrode thickness and its internal fluid channel design, this invention reduces the flow resistance of the electrolyte in the electrode region, improves electrolyte renewal efficiency, and enhances the overall operating performance of the electrolyzer.

The utility model is suitable for composite film technical field provides a kind of composite film roll with easy exhaust structure, including reel main body, composite film layer and end sealing assembly, the composite film layer surface evenly has first exhaust unit, the first exhaust unit is micron level exhaust hole that penetrates the composite film layer, and exhaust hole is along composite film layer length direction and presents single column interval arrangement;In the utility model, by setting first exhaust unit, utilize micron level exhaust hole that penetrates the composite film layer, combine anti-blocking coating, can directly and long-term stably discharge the air remaining between composite film layer, avoid the problem that membrane roll is loose caused by air accumulation, and the exhaust hole design of single column linear array distribution is guaranteed exhaust efficiency at the same time, maximum degree maintained the film layer structural integrity.

The utility model discloses integrated air conditioner, include: bottom disc part, be located in the indoor module and outdoor module of bottom disc part, electric control box and heat dissipation air duct, the first accommodating cavity is defined between the first casing of indoor module and bottom disc part, and indoor fan is located in the first accommodating cavity, and electric control box is installed in the outside of indoor module and is including box body and the circuit board of being located in the box body, and heat dissipation air duct is located in the side of circuit board close to the first accommodating cavity, and heat dissipation air duct is communicated the outside space of integrated air conditioner and the first accommodating cavity, and heat dissipation air duct is located in the upstream side of indoor fan, and the air current of outside space of integrated air conditioner is suitable in the drive of indoor fan and flows through heat dissipation air duct to carry out the heat dissipation of electric control box to the utility model discloses integrated air conditioner, can utilize the air current of outside space to the heat dissipation of electric control box, also be favorable to shorten the overall flow path of the flow of air current in heat dissipation air duct towards the first accommodating cavity, thereby be favorable to the heat dissipation effect of electric control box.