146results about How to "Control flow speed" patented technology

The invention relates to a system and a method for monitoring the sand production rate of an oil-gas well. The system comprises a high-frequency signal sensing device and a control device, wherein the high-frequency signal sensing device comprises an oil stream introducing pipeline and an oil stream returning pipeline which are arranged in parallel on an oil-gas production pipeline of the oil-gaswell; the oil stream introducing pipeline is provided with a fixed displacement pump; the oil stream returning pipeline is provided with a pressure sensor; an oil stream monitoring pipeline is arranged between the oil stream introducing pipeline and the oil stream returning pipeline; a signal sensing drum is arranged between the oil stream monitoring pipeline and the oil stream returning pipelineand bonded with a high-frequency signal sensor; the control device comprises a data acquisition system which acquires pressure and impact signals monitored by the pressure sensor and the high-frequency signal sensor, transmits the acquired signals to a filter amplifier for filtering and signal amplifying and transmits the filtered and amplified signals to a signal processing unit; and the signal processing unit analyzes and judges the impact signals monitored by the high-frequency signal sensor so as to monitor the sand production rate of oil-gas stream in real time. The system and the methodare suitable for the field of oil-gas well development engineering.

The invention discloses an automatic and integrated system for extracting, amplifying and detecting nucleic acids. The system is matched with a disposable and enclosed double face disc type reaction box of a prepackaged reagent, in order to realize automatic nucleic acid detection with 'a sample enters and a result outputs'. The system contains a driving control carrying platform for loading, rotating and exerting the double-face disc type reaction box from the bottom, and a top control component for exerting the same reaction box from the top. The driving control carrying platform and the topcontrol component are provided with an execution device for vertically acted on the double-face disc type reaction box, the execution device provides experimental operations, such as fixation and rotary positioning of the reaction box, unidirectional or reciprocating rotation of the reaction box, high speed centrifugation for driving fluid to flow, opening or enclosing of a sample injection port,a valve and a channel and other switches or seal membranes on the reaction box, heating of the prepackaged reagent and adsorption of magnetic beads, multizone temperature control and multipath fluorescence detection, and the like; automatic and integrated extraction, amplification and detection of nucleic acid in the enclosed reaction box are realized.

The invention provides an Alosa sapidissima culture system, which comprises a culture pool, a heat-insulation shed erected above the culture pool and a deep well, wherein the heat-insulation shed comprises arch bars and longitudinal pull rods; the heat-insulation shed also comprises side upright posts and shed head upright posts, wherein the side upright posts are fixedly connected between the end parts of the arch bars and the ground, the shed head upright posts are fixedly connected between the end parts of the longitudinal pull rods and the ground, a fixed transparent film is covered on the top and front and rear end parts of the heat-insulation shed, and a transparent film capable of being rolled along the length direction of the side upright posts is covered on the side part of the heat-insulation shed; the culture pool is provided with a water inlet and a water discharge port, the water discharge port is located at the bottom of the culture pool and is connected with a drainage system; and a water source of the deep well is used for supplying water for the culture pool by the water inlet. According to the culture system, the problem that the temperature of the Alosa sapidissima culture system is difficult to regulate and control is solved by controlling the opening and closing of the transparent film and using water from the deep well.

The invention belongs to the field of microalgae cultivation and in particular relates to an application of a carbon complementary device for cultivating microalgae in a large-scale way by adopting closed microalgae cultivation; the application is that carbon dioxide is supplied in a high-efficiency way in the closed microalgae cultivation and / or dissolved oxygen generated in the nutrient solution is resolved; the carbon complementary device is a trap type carbon complementary device which is used for supplying carbon dioxide in the closed microalgae cultivation for carbon supplement and / or the dissolved oxygen generated in the nutrient solution is resolved. In the invention, carbon dioxide can be supplemented to the nutrient solution, so as to maintain the requirements of algae cells to a carbon source; in addition, dissolved oxygen in a photo reactor unit can be timely and effectively removed, so as to prevent overhigh dissolved oxygen concentration from inhibiting the growth of thealgae cells; the invention has high carbon dioxide absorption utilization rate, can effectively reduce the cultivation cost of the microalgae, well control the flowing rate of the nutrient solution, effectively reduce the power consumption of the fluid circulation and strengthen the mixing effect in the photo reactor unit.

The invention discloses a wind power blade main beam or subsidiary beam structure. The wind power blade main beam or subsidiary beam structure comprises plate materials, low-surface-density fabric andresin, wherein the plate materials are superimposed in both the chord direction and the longitudinal direction and comprise main plates and side plates arranged at the end portions of the main plates, the thickness of the side plates is less than that of the main plates, the superimposed parts of the adjacent plate materials in the chord direction are superimposed through the side plates of the adjacent plate materials, and the thickness of the superimposed parts of the side plates is not more than that of the main plates, the low-surface-density fabric is arranged between the adjacent platematerials in the longitudinal direction, and the positions between the plate materials as well as the positions between the plate materials and the low-surface-density fabric are filled with the resin. By means of the plate materials and a fabrication method, the resin passage length and the number of corners are effectively increased, excessive penetration of the molten lower-layer resin towardsupper layers is prevented, the flowing speed of the resin can be effectively controlled, the situation that the interlamination resin content is low to cause defects is prevented, the use ratio of theresin is increased, and the quality of wind power blades obtained finally is good.

The invention belongs to the technical field of microorganism fermentation fuel ethanol production, and specifically relates to a continuous solid fermentation ethanol production device having a self-control system and a technology thereof. The technology mainly comprises two steps, namely bacterium addition and continuous solid fermentation, and specifically comprises the following steps: adding fermentation bacteria into pulverized raw materials, when the pulverized raw materials enter into a continuous solid fermentation tank; and then allowing the raw materials mixed with fermentation bacteria to carry out fermentation reactions in the continuous solid fermentation tank to convert the fermentable sugars into ethanol. The technology adopts a continuous solid fermentation method, can fully utilize the fermentable sugars in straws, avoids the usage of antiseptic, saves the production cost and energy, which is needed in the process of straw squeezing, reduces a great amount of waterless discharge, and improves the production efficiency and yield; moreover, the technology adopts a self-control continuous solid fermentation device, changes the conventional production mode, really achieves the continuation and automation of solid fermentation technology; furthermore, the revolution speed of the fermentation tank body and the angle of the cloth plate are adjustable, and thus the adjustability and controllability of production is strengthened.

The invention discloses an electrorheological fluid visualization testing stand. The electrorheological fluid visualization testing stand comprises a stepping motor, a lead screw, two oil cylinders, an electrorheological valve, a signal acquisition and conversion device and a computer. The stepping motor is connected to the lead screw by a coupling. The lead screw is provided with a lead screw nut. A baffle plate is fixedly installed on the lead screw nut. The baffle plate is connected respectively to piston rods of the two oil cylinders. The piston rods of the two oil cylinders are arranged oppositely. The center lines of the piston rods of the two oil cylinders are parallel to the center line of the lead screw. Bottoms of the two oil cylinders are communicated respectively with the electrorheological valve by conduits. Two ends of the electrorheological valve are provided respectively with pressure sensors. A digital microscope and an infrared temperature sensor are located at the position of the electrorheological valve. The pressure sensors, the digital microscope and the infrared temperature sensor are connected respectively with the computer by the signal acquisition and conversion device. The electrorheological fluid visualization testing stand can realize control on different dynamic fields, recording of a change of parameters such as pressure and temperatures, and on-line image acquisition and processing on an electrorheological fluid field microscopic dynamic structure.

The invention discloses a flexible circuit three-dimensional printing device for high-molecular liquid-state metal co-printing. The flexible circuit three-dimensional printing device comprises a mounting framework, a coaxial spray head mounted in the mounting framework, a material supply device, a receiving device and a three-dimensional motion mechanism for driving the coaxial spray head to perform three-dimensional motion relative to the receiving device, and further comprises an auxiliary curing device which synchronously moves with the coaxial spray head to spray printed and discharged materials. The flexible circuit three-dimensional printing device is characterized in that the coaxial spray head comprises inner and outer liquid-state metal charge cavity and high-molecular charge cavity which are independent from each other, and an inner spray head and an outer spray head which communicate with corresponding guide cavities separately and are coaxially arranged. XYZE four-axis motion is utilized for realizing printing of a three-dimensional structure, and the auxiliary curing device, a heating device and a bearing unit convenient for separating printed products solve the problem that a silica gel material is difficult in curing and is difficult to separate. The flexible circuit three-dimensional printing device is convenient to operate, and can quickly and directly print out a complete three-dimensional flexible circuit structure with liquid-state metal therein.

The invention discloses an end portion double-control device for a rotating mechanism. The end portion double-control device for the rotating mechanism comprises a bottom installation base plate internally provided with a plurality of main bolt holes. According to the end portion double-control device, control is carried out through a mechanical principle, the service life of the end portion double-control device is long, the level of the effect by the external environment is low, the manufacturing cost and the maintaining cost are both relatively low, and the practicality is high; moreover, the control capacity for controlling the one-way rotating capacity and the largest rotating speed of the rotating mechanism through the flowability of liquid rotating of the device is flexible control,and therefore the control capacity is high; the device is provided with a pipeline installation threaded structure rotary maximum liquid flowing speed control mechanism, the maximum speed of the liquid during flowing can be effectively controlled, and therefore the phenomenon that the speed is too large is effectively prevented; in addition, the device is provided with a spherical structure sizecontrollable liquid one-way flowing mechanism, the one-way flowability of the liquid can be effectively controlled, and the one-way rotation capacity of the device is controlled; and the device is provided with a spiral spring elastic compression type maximum liquid pressure effective control mechanism.

The invention provides a semiconductor processing device, which comprises a first chamber part and a second chamber part, wherein the second chamber part can move relative to the first chamber part between an open position and a closed position; the first chamber part is provided with a groove channel, a first through hole communicating with a first position of the groove channel and a second through hole communicating with a second position of the groove channel, wherein the groove channel is formed by sinking from the inner wall surface, facing a micro-chamber, of the first chamber part. When the second chamber part is located at the closed position relative to the first chamber part and a to-be-treated semiconductor wafer is accommodated into the micro-chamber, one surface of the to-be-treated semiconductor wafer is propped against the inner wall surface of forming the groove channel, the groove channel forms a closed channel by virtue of a barrier of the surface of the to-be-treated semiconductor wafer at the moment and the closed channel communicates with the outside through the first through hole and the second through hole, so that the flow direction and the flow velocity of a treatment fluid can be accurately controlled, and the amount of the treatment fluid can also be greatly reduced.

The invention relates to a resin adhesive vacuum encapsulation device and a process thereof, which belong to the resin adhesive vacuum encapsulation technical field. The encapsulation device comprises a vacuum drying box, a vacuum pump, a sealing tube, a circuit tube, an overflow adhesive cup, connecting pipelines and valves and the like, which wholly form a complete set of differential-pressure vacuum encapsulation system with encapsulating adhesive automatic flowing for vacuum pumping and atmospheric pressure pushing. The differential-pressure encapsulation device has reasonable design and simple and practical structure, and is worth applying and promoting. The encapsulation process includes the following steps of preparing vacuum encapsulation adhesive, assembling the encapsulation device, operating a valve system of the device for a vacuum-pumping process, encapsulating a circuit, and finishing the encapsulation process. The encapsulation process is adopted to form a differential-pressure encapsulation circuit process with automatic flowing of resin adhesive, the encapsulation device is adopted, the resin adhesive is improved, and the whole structure of the circuit is enhanced, and the impact resistance and the vibration resistance and other harsh environment resistance and the insulation performance for the electronic device and components are increased. The encapsulation process of the invention is applied to engineering test under various harsh environments and complex conditions, and has good practical effect.

The invention discloses a system for spontaneously forming and controlling liquid drops. The system comprises a micro pipeline, a gas releasing part, a water-phase container and an oil-phase container, wherein the gas releasing part is used for releasing a gas in the micro pipeline; the water-phase container is used for containing polar liquid; the oil-phase container is used for containing non-polar liquid; the first end of the micro pipeline can be respectively communicated with outlet ends of the water-phase container and the oil-phase container so as to form a sealed system; the internal air pressure of the system can be increased to be higher than external atmospheric pressure; after the polar liquid and the non-polar liquid are respectively used for blocking communication between the gas in the water-phase container and the oil-phase container and the gas in the micro pipeline, the gas releasing part releases pressure, the pressure in the micro pipeline is enabled to be smaller than the air pressure in the water-phase container and the oil-phase container, and the polar liquid and the non-polar liquid are facilitated to be injected into the micro pipeline under the action of pressure difference. The invention also discloses a method for spontaneously forming and controlling the liquid drops. By applying the system and the method for spontaneously forming and controlling the liquid drops, provided by the invention, external energy is not required for supplying power, the cost is low, the liquid drop forming effect is stable, and the operation is convenient.

The invention discloses an air-flow vortex balling machine for producing spherical graphite, which consists of a machine body, a balling drive device and an internal classification machine drive device, wherein an internal classification machine, a powder balling module and a cooling system are arranged in the machine body. In the invention, an internal balling module and a classification module are rationally arranged, and thus, the air-flow vortex balling machine for producing the spherical graphite is provided. The air-flow vortex balling machine can ensure that the graphite powder undergoes the physical processes of thinning, shearing, collision, friction, coiling, uniting and densification in an air-flow vortex balling room or can realize the combination of a physical balling process and a mechanical powder thinning process to prepare the spherical product. The indexes, such as sphericity, grain fineness distribution, tap density, apparent density, actual density and special surface area, of the spherical graphite powder can be controlled in the range of pre-determined values; the quality is stable; the yield can be improved by over three times; and over 50 percent of energy consumption can be reduced.

The invention provides a method for preparing a film by printing, in particular to a method for preparing a large-area patterned organic light-emitting film by printing by adopting an ink-jet technology. According to the method, the problem that an organic small-molecular light-emitting material is unstable in ink jet and poor in film-forming quality in the printing process is solved. The method belongs to the technical field of printing electronics and application thereof. The method comprises the following steps that at the room temperature, according to the steps of ink edge flow inhabitation by a double-solvent system, small molecular light emitting material distribution control by substrate surface treatment, small molecular light emitting material agglomeration control by ink dryingregulation and the like, the high-quality large-area patterned organic small-molecule light-emitting film is obtained. The method has the advantages that the large-area patterned organic micro-molecule light-emitting film prepared by the method has the good surface morphology and uniform film distribution, and high-quality printing and preparation of high-efficiency large-area organic photoelectric devices can be realized.

A damper, including: a tube body, a central spindle, and two laminae. The laminae each include a curved plate, an oil-sealing rib plate and an oil-discharging rib plate which are disposed at two ends of the curved plate, respectively. The inner wall of the tube body is provided with two convex splitters. One end of the central spindle is inserted into an inner chamber of the tube body and sealed in the tube body; the other end of the central spindle extends outside the tube body. The central spindle includes two ribs, and the laminae are disposed between the ribs and the tube body. The ribs, the laminae and the splitters combined divide the inner chamber of the tube body into two pressure chambers and two nonpressure chambers; both the pressure chambers and the nonpressure chambers are filled with damping oil.

The invention discloses a textile dye mixing device, and the device comprises a fixed frame and is characterized in that stirring devices are fixedly connected to the inner walls of the two sides of the fixed frame, stirrers are arranged at the tops of the stirring devices, feeding ports are formed in the middles of the left sides of the front faces of the stirring devices, and observation windowsare formed in the right sides of the front faces of the stirring devices; a collecting device is arranged on the inner walls of the two sides of the fixed frame and located at the bottom of the stirring device, a controller is fixedly connected to the right side of the top of the front face of the collecting device, and a discharging port is formed in the bottom of the collecting device. The invention relates to the technical field of textiles. According to the textile dye mixing device, the cutting mechanism in the stirring device rotates along with the stirring rod, the stirring device makes contact with dye before the dye is smashed and stirred, some blocky dyes are convenient to smash and mix, the quality of textile finished products is not affected, the stirring process and the stirring degree are convenient to observe, and therefore adjustment is conducted in time.

The invention discloses a method for planting gentiana macrophylla. The method includes the following steps that 1, selection, storage and processing are conducted, wherein seeds are selected and stored; 2, mulching planting is conducted, wherein soil preparation, fertilization, ridging, mulching, mulch punching, sowing, seedling checking and thinning are conducted in sequence, sowing is conducted in the period from the middle ten days of March to the beginning of April, seeds are sowed in holes, the treated gentiana macrophylla seeds are mixed with toxic sand in a ratio of 1:(8-10) and then sowed, and the holes are covered with a layer of thermal-insulation water permeable material formed by mixing fly ash, field soil, dry horse dung and fine sand after sowing and then are filled with soil; 3, field management is conducted, wherein weeding, overwinter management and topdressing are conducted in sequence; 4 harvesting is conducted. By means of the method for planting the gentiana macrophylla, the seedling emergence time is advanced from about 30 days to about 28 days, the survival rate is up to 98.7% or above, seedlings grow strong, and the incidence rate is less than 2.3%.

The invention relates to an in-depth type funnel grouting sleeve slurry supplementing method and belongs to the technical field of grouting sleeve slurry supplementing. The in-depth type funnel grouting sleeve slurry supplementing method comprises the following steps of S1, preparing a slurry supplementing agent, firstly preparing the slurry supplementing agent before slurry supplementing, adding the slurry supplementing agent with small particles, low viscosity and strong fluidity into the slurry supplementing agent, and placing the slurry supplementing agent at a construction site for later use after the slurry supplementing agent is prepared; S2, a grout supplementing device being installed, specifically, the grout supplementing device being hung at a high position, and the diameter of an outlet of a grout supplementing pipe in the grout supplementing device being smaller than that of a grout outlet of the grouting sleeve; and S3, slurry supplementing being conducted, specifically, the prepared slurry supplementing material being poured into a funnel at a top end of a slurry supplementing device, a switch arranged on a slurry supplementing pipe being turned on, then the slurry supplementing pipe being inserted into the grouting sleeve through a slurry outlet, and the slurry supplementing material flowing into the grouting sleeve through the fluidity of the slurry supplementing material. According to the secondary slurry supplementing device, a technical problem that in the secondary slurry supplementing process, due to the air exhaust problem, cavities still exist in the sleeve can be solved.

The invention discloses a lithium battery power assembly cooling system, which is used for solving the problem of a temperature rise of an existing battery pack. The lithium battery power assembly cooling system comprises a lithium battery pack, a liquid pump, a radiator and a liquid transfer pipe, wherein the lithium battery pack comprises battery cells, average-temperature assemblies and a shell; the battery cells and the average-temperature assemblies are mutually laminated at intervals; each average-temperature assembly comprises a left shell, a right shell, a liquid guide sheet, a liquid inlet pipe and liquid outlet pipes; each left shell and the corresponding right shell are of a symmetrical structure; an internal chamber of each liquid guide sheet is a cooling liquid channel; the edge of each liquid guide sheet is embedded into a joint between the corresponding left shell and right shell; average-temperature fields are formed between two sides of each liquid guide sheet and the corresponding left shell and right shell respectively; a center hole and spiral liquid distribution slots are arranged in two side surfaces of each liquid guide sheet; and the shell is connected with each liquid guide sheet through four liquid outlet pipes and one liquid inlet pipe to form a cooling medium flow channel. According to the lithium battery power assembly cooling system, the flow rate of a cooling medium in each average-temperature assembly can be controlled to achieve the target of controlling the internal temperature of each battery cell.

The invention discloses a mold for producing an aluminum soup pot with pot lugs and a production method adopting the mold. The mold comprises an upper mold connecting plate, a lower mold connecting plate, a female mold which is fixed to the upper mold connecting plate and a male mold which is fixed on the lower mold connecting plate and is mutually matched with the female mold, a guide ring is further fixed on the lower mold connecting plate, the guide ring sleeves outside the male mold, moreover, a gap is reserved between the guide ring and the male mold to form a pressure regulating groove,a stripping ring is connected in the pressure regulating groove in a sliding mode, an air inlet channel communicating with an adjusting groove is formed in the lower mold connecting plate, and an annular groove used for forming the pot lugs is formed in the end surface of the stripping ring. An original elastic rubber block is omitted, the air pressure in the pressure regulating groove is controlled to control the fluidity of the aluminum material, moreover, an elastic part is arranged at the bottom of a returning block, so that the elastic linear change of the elastic part is kept constant, only the pressure adjustment in the pressure regulating groove is required to be performed for the single-sided control, the actual operation and the calculation process are facilitated, one-time forming is achieved, and the production efficiency is improved.

The invention discloses a new energy vehicle power battery cooling system used for solving the temperature raising problem of an existing battery pack. The system comprises battery cores and uniform-temperature assemblies, wherein the battery cores and the uniform-temperature assemblies are stacked at intervals. Each uniform-temperature assembly comprises a left shell, a right shell, a liquid guide piece, a liquid inlet pipe and a liquid outlet pipe, wherein the left shell and the right shell are of a symmetric structure, an inner cavity of the liquid guide piece is a cooling liquid channel, the edge of the liquid guide piece is embedded in a connection seam of the left shell and the right shell, glue seams are formed in the periphery of the liquid guide piece, uniform-temperature fields are formed between one side of the liquid guide piece and the left shell and between the other side of the liquid guide piece and the right shell respectively, the two side faces of the liquid guide piece are provided with center holes and spiral liquid distribution slots, the liquid inlet pipe and the liquid outlet pipe are externally connected with a liquid pump and a cooler to form a circulating pipeline, and a cooling medium flowing channel is formed. Flowing speed of cooling media in the uniform-temperature assemblies can be controlled, and the aim of controlling temperature in the battery cores is achieved.

The invention provides a natural gas dehumidifying device. The natural gas dehumidifying device comprises a straight pipe inlet section, a straight pipe outlet section, a rectification section and a liquid collecting device, wherein one end of the straight pipe inlet section and one end of the straight pipe outlet section are connected with a natural gas pipeline, and the rectification section is arranged between the straight pipe inlet section and the straight pipe outlet section. The rectification section is of a variable-section structure, and a flow guide liquid distribution device is installed in the rectification section. The liquid collecting device is communicated with the interior of the straight pipe outlet section through a liquid discharging pipe so as to collect liquid separated from the straight pipe outlet section. In the natural gas dehumidifying device, the flow guide liquid distribution device is installed at the axis position of a flow channel composed of the rectification section and the straight pipe outlet section under positioning and fastening of a flange, and the speed of natural gas flowing through the flow channel is increased and decreased by changing the shape of a cavity formed by the inner wall of the pipeline and the flow guide liquid distribution device, so that the flowing speed and direction of in-coming flow natural gas are controlled, the pressure and temperature of the gas are changed, and thus liquid in the natural gas is separated out.

The invention discloses a semiconductor processing device and a method thereof, which relate to the technical field of semiconductors. The semiconductor processing device comprises a body and at least one semiconductor processing unit formed on the body, wherein each semiconductor processing unit comprises a recessed part formed on the upper end surface of the body, a first channel and a second channel, the bottom wall of the recessed part is provided with at least position, a fall trend is presented from the position to the edge of the bottom wall along a gravity direction or a rise trend is presented from the position to the edge of the bottom wall along a direction opposite to the gravity direction, the first channel is opened in each position of the bottom wall and communicated with the recessed part, the second channel is opened in the body at the edge of the bottom wall of the recessed part and communicated with the recessed part, and the first channel and the second channel can be used as outlets and / or inlets of fluid. Through controlling the flowing direction of the fluid on the surface of a substrate, the fluid is contacted with the surface of the substrate during a process of flowing the recessed part and a physical and / or chemical reaction happens, and process processing is carried out on the surface of the substrate.

The invention discloses a lithium battery pack for solving the problem of temperature rise of the existing battery pack. The lithium battery pack comprises battery cells, uniform-temperature components and a shell, wherein the battery cells and the uniform-temperature components are overlaid at intervals, each uniform-temperature component comprises a left shell, a right shell, a liquid-guiding plate, a liquid-inlet pipe and a liquid-outlet pipe; the left shell and the right shell are symmetrical structures, an internal chamber of the liquid-guiding plate is a cooling liquid channel, an edge of the liquid-guiding plate is embedded in a joint between the left shell and the right shell, polyethylene glue grooves are arranged around the liquid-guiding plate to form a glue joint, two sides of the liquid-guiding plate respectively form uniform-temperature fields with the left shell and the right shell; a central hole and a spiral liquid-distributing slot are respectively formed on two side surfaces of the liquid-guiding plate; and the shell and the liquid-guiding plate are connected with one liquid-inlet pipe through four liquid-outlet pipes so as to form a cooling medium flowing channel. The lithium battery pack can control the flowing speed of cooling medium in the uniform-temperature components to achieve the aim of controlling internal temperature of the battery cells.

The invention relates to continuous parching equipment which comprises a rack, a feeding mechanism, a parching mechanism, a discharging mechanism and an oil stain separation and collection device. The parching mechanism is mounted above the rack, the feeding mechanism and the discharging mechanism are arranged at the feeding end and the discharging end of the parching mechanism respectively and communicated with the parching mechanism, and the parching mechanism comprises a roller and a heating element. The roller comprises an inner barrel and an outer barrel arranged outside the inner barrel in a sleeving mode, a closed air channel is formed between the inner barrel and the outer barrel, and the heating element is arranged in the air channel. An air inlet of the oil stain separation and collection device is communicated with the interior of the roller, an air outlet of the oil stain separation and collection device is communicated with the air channel, and high-temperature smoke generated in the roller is purified through the oil stain separation and collection device and then is subjected to secondary heating through the air channel to be guided back to the roller. In the seed parching process, cyclic utilization of heat is achieved, it is guaranteed that the equipment is free of emissions, the production environment can be clean, and the aims of saving energy and reducing emissions are achieved.

The invention relates to an acoustic vortex ultrasonic cleaning device. The acoustic vortex ultrasonic cleaning device comprises an ultrasonic signal generation and control system, a power amplification system and a cleaning system. A platform and N independently-driven electroacoustic transducers are arranged in a cleaning tank of the cleaning system. The N independently-driven electroacoustic transducers are respectively arranged on the side walls of the cleaning tank to form a group of ultrasonic generation arrays in an annular or focusing arrangement mode. After the transducers work, a superposed vortex sound field can be generated in the cleaning tank. Vortex waves carry the axial orbital angular momentum, and the orbital angular momentum can be transmitted to the fluid in the cleaning tank to drive the fluid to rotate, so that the flowing speed of the fluid in the cleaning tank can be remarkably increased, and a dirt layer can be easily stripped off. Particularly, the independently-driven electroacoustic transducers can be additionally arranged at the bottom and the top (a cleaning tank cover) of the cleaning tank correspondingly to form three groups of orthogonal ultrasonicarrays together with the side wall transducers, and the rotation control dimension of the fluid can be expanded from one dimension to three dimensions through a signal control terminal, so that the cleaning effect is further enhanced.

The invention discloses a floor spring for door opening delaying. The floor spring for door opening delaying comprises a shell and a buffering device. The buffering device is arranged in the shell. The buffering device comprises a first piston. A first oil cavity and a second oil cavity are arranged in the shell and located on the two sides of the buffering device respectively. The shell is provided with a main oil path. The first oil cavity and the second oil cavity are communicated through the main oil path. A regulating valve is arranged on the main oil path. The first piston is provided with a controllable side oil path, and the controllable side oil path is communicated with the main oil path. During door opening, hydraulic oil flows into the first oil cavity from the second oil cavity through the controllable side oil path; the regulating valve is arranged on the main oil path and the controllable side oil path is arranged on the first piston so that the flowing speed of the hydraulic oil flowing to the controllable side oil path can be regulated and controlled through the regulating valve, and accordingly the flowing speed of the hydraulic oil flowing into the two oil cavities is controlled, the resistance is increased within a certain angle range during door opening, then door opening delaying is achieved, and a door is prevented from colliding with an interference object when the door is opened.

The invention relates to a waste water treatment device, in particular to a tungsten production waste water convection purification device. The invention aims to provide the tungsten production wastewater convection purification device. The tungsten production waste water convection purification device comprises a high-efficiency atomizing and neutralizing device, a nitrogen dioxide purificationdevice and a well type purification device; and the high-efficiency atomizing and neutralizing device is arranged on the left side of the top end of a bottom frame. The problem that sulfur dioxide inwaste gas generally needs to be utilized as well as in a container, alkaline waste water is sprayed from top and waste gas containing the sulfur dioxide is blown from bottom when an existing waste water purification device treats waste water of tungsten production. The flowing speed of the waste gas and the waste water is controlled, the purification effect is improved, the waste water which cannot be purified completely is recovered and sulfate ions in the waste water are settled, so that the fact that the dissolving capacity of the sulfur dioxide is not reduced during secondary purificationis guaranteed; and sodium peroxide solid is thrown circularly and the nitrogen dioxide is completely absorbed, so that the aim of completely purifying the waste gas and the waste water is finally fulfilled.

The invention provides a pressure balancing type high-precision high-pressure-difference control valve which comprises a valve body and a pressure reducing channel. An inlet and an outlet are formed in the two sides of the valve body. The pressure reducing channel is composed of a valve core, a valve core sleeve and a valve base. A drainage runner is arranged between the valve core sleeve and thevalve body. A drainage opening communicating with the drainage runner is formed in the upper end of the valve core sleeve. The drainage runner communicates with the outlet. Multiple ring-shaped bossesare arranged on the inner wall face of the valve core sleeve at intervals. The valve base is arranged at the lower end of the valve core sleeve and communicates with the inlet. The valve core is arranged in the valve core sleeve and connected with the valve core sleeve in a sliding manner. A curved surface sealing face matched with the valve base is arranged at the lower end of the valve core. The valve core is provided with multiple buffering sets at intervals in the axial direction. Each buffering set comprises two buffering grooves arranged symmetrically. The adjacent buffering sets are arranged in a staggering manner. When the curved surface sealing face is matched with the valve base, the buffering grooves and the ring-shaped bosses are partially overlapped. According to the controlvalve, the valve core, the valve core sleeve and the valve base are adopted, control over high-pressure-difference media is achieved, adjusting performance is good, and adjusting precision is high.

The invention relates to the technical field of medical equipment, and discloses an implantable subcutaneous administration device for the medial equipment. The device comprises a base plate, a guidepipe is fixedly sleeved with the middle of the bottom of the base plate, a shunting device fixedly sleeves the guide pipe, protection layers are fixedly installed on four corners of the top of the base plate, and supports located in the protection layers are fixedly installed on the top of the base plate, and a rubber plate is fixedly connected to the tops of the supports. According to the implantable subcutaneous administration device for the medial equipment, by installing the supports on the base plate and installing the rubber plate on the tops of the supports, the rubber plate is made from silicone rubber, isolation plates are installed in the supports, isolation devices are installed on the two sides in the supports, round holes formed in the isolation plates and injection holes formed in the isolation plates are staggered, and meanwhile protection layers are installed on the exteriors of the supports on the base plate; by means of a three-layer structure, the phenomenon that when medicine is implanted, blood return occurs is prevented, and the hemostasis function of the implantable subcutaneous administration device for the medial equipment is achieved.