129results about How to "Increase flow space" patented technology

The invention discloses a plant fiber sizing screen powder machine, and belongs to the technical field of sifting machines. The plant fiber sizing screen powder machine comprises a rack and a machine shell, wherein the machine shell is formed by a front standing plate, a rear standing plate, a top shell and a bottom plate, and the machine shell is provided with a screen door; a screen drum is fixed between the front standing plate and the rear standing plate, the screen drum comprises front and rear end drums, a screen mesh frame and a screen mesh, the screen mesh comprises a first order screen mesh and a second order screen mesh, and the screen holes of the second order screen mesh are greater than that of the first order screen mesh; and the screen drum is internally provided with a pneumatic conveying device, the upper part of the machine shell is provided with a feeding bin, the lower part of the machine shell is provided with a first order discharge hopper and a second order discharge hopper, and the rear part of the machine shell is provided with a rear discharge port. The plant fiber sizing screen powder machine provided by the invention is used for screening plant fiber power, the structure that a screen drum is fixed and screen mesh is sectionalized is adopted, and the pneumatic conveying device is utilized to deliver powder; and the screening thing uniformly passes in a screening process, the liquidity is strong, the fractionation effect is good, and the output and the quality of the products are notably improved.

The invention provides a fan, fan volute and an air conditioner. The fan volute comprises a bottom plate and side plates, wherein the side plates are connected to the bottom plate; an air flue is formed between the bottom plate and the side plates; the outlet of the air flue is provided with a pressure diffusing section; the side plates comprise the first side plate and the second side plate which correspond to the pressure diffusing section; and the second side plate and the bottom plate form an acute-angle included angle on the plane. The second side plate in the pressure diffusing section is inclined by certain angle, so that flowing space, in the fan volute, of a fluid is increased, and turbulence generated when gas enters the fan is reduced, and therefore, the purpose of reducing noises is realized.

The invention discloses an air-drying method for improving the quality of alfalfa. The method comprises the following steps of: 1) ridging; 2) selecting materials and treating; and 3) air-drying. The method has the advantages that: 1, the ridging increases the air flow space on the bottom of a grass layer; 2, the fracture of stalks accelerates the evaporation rate of the moisture in the stalks, so that the drying time is shortened; 3, the combination of field ridging and fracturing and air-drying of the stalks has a positive interaction effect on the loss of the moisture of fresh alfalfa forage; 4, the loss rate of the moisture of the fresh alfalfa forage is remarkably and negatively correlative with the residual amount of crude proteins in green hay; 5, the aims of accelerating the drying of the alfalfa, uniformly drying and improving the quality of the green hay are fulfilled; and 6, operation steps are simple and easy, the drying cost is low, and the efficiency is high.

The invention provides a reactor external reactor vessel cooling (ERVC) system three-dimensional simulation experiment apparatus and a reactor external reactor vessel cooling (ERVC) system three-dimensional simulation experiment method. The experiment apparatus comprises an injection water storage circuit, an experiment main circuit, a cooling water secondary circuit and a descending circuit, wherein the experiment main circuit comprises a reactor pit simulation body, a pressure container simulation body, a thermal insulation layer simulation body, a cavity body and a heating module, the cooling water secondary circuit comprises a heat exchanger and a cooling pipeline, the descending circuit comprises a natural descending circulation pipeline and a forced descending circulation pipeline, and the vertical plane of a steam-water mixture flowing path is perpendicular to the input pipeline of the injection water storage circuit or an included angle is formed between the vertical plane of asteam-water mixture flowing path and the input pipeline of the injection water storage circuit. With the experiment apparatus and the experiment method of the present invention, the ERVC experimentsunder the natural circulation condition and the forced circulation condition can be achieved by simulating the ERVC process of the actual external reactor vessel, and the water injection flow and thewater injection undercooling can be well adjusted by combining the three-dimensional water supply flow path, such that the ERVC capacity of the reactor and the safety margin of the critical heat fluxdensity on the outer wall of the pressure vessel can be improved.

The invention provides a forming mould for flange forging. The forming mould comprises a forming upper mould and a forging lower mould, wherein a forming bin is arranged above the forming lower mould;the forming upper mould is movably mounted in the forming bin; a lower mounting slot is formed in the bottom of the forming bin; the lower mounting slot penetrates through the lower surface of the forming lower mould; a lower mould core is embedded into the lower mounting slot; an upper mounting slot is formed in the forming upper mould in a penetrating mode; an upper mould core is mounted in theupper mounting slot; an upper groove is formed in the lower surface of the upper mould core; a lower groove is formed in the upper surface of the lower mould core; the upper groove and the lower groove are spherical arc-shaped slots; and the curvature of the arc surface of the upper grove is the same with that of the arc surface of the lower groove; the forming upper mould, the forming lower mould, the upper mould core and the lower mould core are closed to define a forming cavity; and the forming cavity is positioned in the upper groove and the lower groove to define a spherical cylindricalstructure. The forming mould solves the problem that an existing forming mould causes a formed forge piece to crack or fold as a result of a too great flange size and quick material flow, and is suitable for flanges with relatively great sizes.

The invention relates to an energy-saving low-carbon environment-friendly European-type grinding machine comprising an analytical machine on the upper part of a host machine, wherein the lower part of the host machine comprises an upper machine body, a middle machine body and a lower machine body; a discharge hole is formed in the top end of the upper part of the main machine; an airflow isolation loop is arranged on the lower part of the host machine; fine powder sending space is formed between the airflow isolation loop and the machine bodies of the lower part of the host machine; a feeding hole is installed in the outer side of the middle machine body; an air inlet is arranged in the lower machine body; a main shaft transmission device is installed in the middle machine body; the main shaft transmission device comprises a host machine belt wheel and a belt wheel transmission shaft; the host machine belt wheel is installed at the outside of the middle machine body; one end of the belt wheel transmission shaft is connected with the host machine belt wheel; the other end of the belt wheel transmission shaft is engaged with the other conical gear of the main shaft; a combined-type grinding roller lifting frame is installed on the main shaft; a cross arm shaft is installed on the combined-type grinding roller lifting frame; the upper end of a long-arm grinding roller shaft assembly is suspended on the cross arm shaft to form a movable fulcrum; a grinding roller capable of performing autogiration is installed at the lower end of the long-arm grinding roller shaft assembly; and a grinding ring with the position corresponding to that of the grinding roller is installed on the lower machine body. The energy-saving low-carbon environment-friendly European-type grinding machine is high in grinding efficiency, convenient to examine and repair and install, and long in service life, and a finished product produced by the energy-saving low-carbon environment-friendly European-type grinding machine is wide in particle size range.

The invention provides a transformer respirator. The transformer respirator comprises a silica gel cylinder for storing silica gel particles, an upper cover arranged on the upper side of the silica gel cylinder, a breathing disc arranged on the lower side of the silica gel cylinder, an inner oil cup and an outer oil cup, wherein the inner oil cup and the outer oil cup are arranged on the lower side of the breathing disc and used for storing transformer oil; the transformer respirator is characterized by also comprising an extending oil cup fixed on the upper side of the breathing disc and communicated with the inner oil cup and a separation net arranged on the upper side of the extending oil cup and used for bearing the silica gel particles, the separation net is arranged inside the silicagel cylinder, the separation net and the extending oil cup are arranged at an interval, and the area of the cross section of the extending oil cup is larger than the area of the cross section of theinner oil cup. According to the transformer respirator, the problem that silica gel in an existing respirator is contaminated by splashed transformer oil is solved; the flowing space of the transformer oil is increased, and the silica gel contamination problem caused by rapid rising of the transformer oil level caused when the temperature of a transformer changes is effectively solved.

The invention relates to a transferring point dust suppression device and method. The device is arranged at the transferring position of an upper-stage belt and a lower-stage belt. The device comprises a discharge pipe, an ultrasonic smoke nozzle, a dust suppression cover, baffle plates, a return pipe, a sealing part and a dust blocking curtain. An induced airflow calculation method is invented, aformula for calculating the size of the induced airflow in different working conditions and devices is provided, guidance is provided for reasonably setting the parameters such as the fogdrop particles and the spraying volume of the ultrasonic smoke nozzle, and the purpose of reducing the dust suppression energy consumption is achieved. Ultrasonic waves are used for generating frog so that the space of the discharge pipe can be humidified, in cooperation with the flow blocking effect of the baffle plates and the dust blocking curtain and the pressure relief effect of the return pipe, dust carried in the airflow settles under the gravity effect, the combination probability of the frog and dust is improved through kinetic energy of the induced airflow, and the dust removal effect is improved. The transferring point dust suppression device and method are suitable for dust suppression of the bulk material belt conveying and transferring process without special requirements on the materialmoisture content, such as dust suppression of the belt conveying processes such as coal, iron ore, building quarrying, sintering and gravel loading and unloading.

The invention provides a phase-change heat dissipation motor shell and a motor applying the same. The phase-change heat dissipation motor shell comprises a motor body and a motor shell, wherein the motor body comprises a rotor assembly, a rotating shaft and a stator assembly; one end of the rotating shaft is fixedly connected with the rotor assembly through a bearing; the rotor assembly is arranged in the stator assembly in a sleeved mode; the stator assembly is arranged inside the motor shell in a sleeved mode; and spiral phase-change cooling fins are fixedly connected to the surface of the stator assembly. The invention relates to the field of motors. According to the phase-change heat dissipation motor shell and the motor applying the same, the integrated spiral heat dissipation structure is used, and compared with an existing independent heat dissipation fins, the flowing space of the phase-change working medium is large, the heat dissipation continuity is enhanced, and meanwhile,the heat dissipation effect of the traditional fan-shaped heat fins is enhanced on the basis, and the consumable material of the machine shell is saved, so that the problems that the heat dissipationcontinuity of a common phase-change heat dissipation motor is poor, the heat dissipation effect is continuously reduced along with the increase of temperature, and the phase-change working medium is poor in liquidity and small in space elasticity and phase-change working medium loss occurs easily can be solved.

There is disposed a fan, which includes a fan frame and an impeller. The fan frame has a frame body, a base and at least one support member. There is at least a deflector part on the inside wall of the frame body. The base is disposed in the frame body and has a bottom part and a supercharging part set on the periphery of the bottom. The support member is set between the frame body and the supercharging part of the base and the impeller is disposed in the frame body and is supported by the base.

The invention discloses a volute which comprises a front plate, a rear plate and a surrounding plate. The front plate and the rear plate are parallel to each other in the front-back direction, and an inclined face plate which is inclined towards a space between the front plate and the rear plate is formed on the lower portion of one of the front plate and the rear plate at least; the surrounding plate is connected between the front plate and the rear plate and comprises a first helical surface section, a second helical surface section and a curved surface section, the second helical surface section corresponds to the first helical surface section, the curved surface section is connected between the first helical surface section and the second helical surface section, corresponds to the inclined face plates, and is deviated from helical surfaces to be outwardly protruded, and the first helical surface section and the second helical surface section are located on the helical surfaces. The volute has the advantages that the outwardly protruded curved surface section is reasonably arranged on the surrounding plate, so that a flowing space of airflow inside a fan can be enlarged, flow fields in the volute can be uniformly distributed, the air volume and the air pressure of an exhaust hood can be increased, and noise can be effectively lowered. The invention further discloses the fan with the volute and the exhaust hood.

The invention relates to a cast shell type EGR cooler. An air inlet connector is connected with a telescopic structure with a corrugated pipe and a sleeve, the outer circumference of the telescopic structure is fixedly connected with an input end flange cover, and the input end flange cover is in bolted connection with one end of a cast pipe shell through an input end sealing gasket. The other endof the pipe shell is in bolted connection with a fixing structure and an output end flange cover with an output pipe connector through an output end sealing ring. The telescopic structure is welded to and connected with a pipe plate at one end of a pipe bundle, and a pipe plate at the other end of the pipe bundle is welded to and connected with the fixing structure. According to the cast shell type ERG cooler, the fixing structure is arranged at one end of the pipe bundle, the telescopic structure is arranged at the other end of the pipe bundle, the problem of dislocation between the pipe shell and the pipe bundle due to thermal expansion and cold contraction is solved, axial displacement compensation is conducted on a heat exchange core through a flexible structure of a double-layer corrugated pipe in the telescopic structure, the influence of thermal expansion and cold contraction on the heat exchange core is reduced, the double-layer corrugated pipe is placed at an air inlet end and combined with a shell water inlet structure, the water flow space is increased, and water flow uniformity is guaranteed.

The invention provides an automobile, an ECU of the automobile, a suspension system, a spring damping device and a control system. The spring damping device comprises a spiral spring and the damper. A spring inner cavity extending to the two ends of the spring line in the spiral direction is formed in the spring line of the spiral spring. The damper comprises a working cylinder provided with a piston cavity, a piston slidably located in the piston cavity, and a guide rod connected with the piston and provided with a guide rod cavity. The piston cavity is divided into a first cavity and a second cavity by the piston, the first cavity is defined by the piston and the guide rod, and the guide rod cavity or the second cavity communicates with the first cavity. The spring inner cavity comprises at least one working section in the spiral section. The damper connected to the spring line is arranged outside the working section. The length direction of the guide rod is parallel to the axial direction of the spiral spring. The guide rod cavity and the second cavity communicate with the working section. Flowing fluid is contained in the working section. According to the technical scheme, the spring damping device is small in occupied space and has good buffering and damping performance, and arrangement difficulty is lowered.

The invention discloses an oil filling pipe assembly of a passenger vehicle. A guide device is also arranged in an oil filling pipe; a plurality of gun barrel limiting blocks are arranged at intervals in the circumferential direction of the inner wall above a direct connection pipe; the gun barrel limiting blocks comprise connection ends used for fixing the inner wall of the direct connection pipe; and the relative ends of the connection ends of the gun barrel limiting blocks define a guide space which is provided for a gun barrel to penetrate into and is coaxial with the direct connection pipe. When an oil gun is inserted for filling oil, the guide device can be used for limiting the gun inserting position to avoid the problems of advance gun jumping and reverse spraying caused by incorrect operation; at the same time, the oil filling length at the straight end of the oil filling pipe is increased, so that the flowing space of oil liquid in the oil filling process is enlarged, the time of collision between the oil liquid and the inner wall of the oil filling pipe is delayed, and the possibility of backflow of fuel oil is reduced; and due to the design of a bent pipe, the impact force of the oil liquid on the pipe wall due to the change of the flowing direction of the oil liquid is effectively reduced, and the possibility of backflow of the fuel oil is further reduced.

The invention provides a hydrogen fuel cell, a preparation method of the hydrogen fuel cell, a clamp for preparing the hydrogen fuel cell and a use method of the clamp. The hydrogen fuel cell comprises an anode plate, a five-layer membrane electrode assembly and a cathode plate which are sequentially stacked, the five-layer membrane electrode assembly comprises a five-layer membrane electrode anda sealing structure arranged along the outer edge of the five-layer membrane electrode, and the sealing structure comprises an upper outer-layer frame, an upper inner-layer frame, a lower inner-layerframe and a lower outer-layer frame which are arranged in a stacked mode. The clamp comprises an upper clamp plate and a lower clamp plate, wherein the upper clamp plate is provided with a protrudingstructure and a stepped slope and is embedded with the lower clamp plate. According to the invention, the thicknesses of the inner-layer frames are different, and the thicker inner-layer frame is arranged on the cathode side, so that the drainage capacity of a cathode is enhanced, and water logging can be effectively reduced; the clamp is used for double-layer frame sealing and integrated packaging, the forming process is simple, the overall deformation resistance is high, and damage to membrane electrode materials and structures due to overpressure, dislocation and other problems in the forming process can be effectively reduced.

The invention relates to a side dumping car comprising a lower rack and a compartment body, wherein the compartment body is arranged on the lower rack and can turn towards both sides. The compartment body can be divided into a plurality of sections of independent compartment bodies, each section of independent compartment body in the independent compartment bodies comprises each section of independent upper rack and each section of independent compartment arranged on each section of independent upper rack, the top corner ends of the front end wall and the back end wall of each independent compartment are at least provided with two side compartment door power elements used for respectively operating the opening and closing of two side compartment doors at both sides of the compartment, and at least one compartment power element operating the lifting of the compartment is arranged on the lower rack at the front end or/and the back end of each independent compartment. In the side dumping car, each section of compartment body can independently dump goods towards any one side and also can dump the goods towards one side simultaneously, and any two sections or a plurality of sections of compartment bodies also can be combined to dump the goods towards the same side; in addition, the problem of the deformation of the upper rack also can be solved simultaneously.