680results about How to "Control flow" patented technology

The present invention relates to a pericardiothoracic puncture and effusion drainage device and method thereof, belonging to the technical field of medical puncture equipment. The device includes: a puncture mechanism and an effusion drainage mechanism, the effusion drainage mechanism includes: a sealing disk, on which a liquid inlet tube and a liquid outlet tube are penetrated, the liquid inlet tube is coupled to the puncture mechanism via a hose fluid, and the liquid outlet tube is used to couple to an external effusion storage container; a cylinder, which is rotationally coupled to the occluding disk and is provided with a first chamber and a second chamber; wherein the device is suitable for extracting and discharging effusion from the first chamber and the second chamber alternately by using the liquid inlet tube and the liquid outlet tube via the relative rotation of the occluding disk and the cylinder. In this way, uninterrupted fluid extraction can be achieved in the pericardiothoracic puncture and effusion drainage device.

The invention relates to the technical field of automobile part machining, and discloses a combined die-casting die for automobile hardware, which comprises a mounting bottom plate, a base is mounted at the top of the mounting bottom plate, a double-shaft servo motor is fixedly connected to the outer part of the base, and a transmission rod is fixedly connected to the output end of the double-shaft servo motor. And the outer side of the transmission rod is fixedly connected with two second bevel gears, two grooves are formed in the outer surface of the base, the interiors of the grooves are rotationally connected with two-way screws, and one end of each two-way screw is fixedly connected with a first bevel gear. According to the combined die-casting die, the first bevel gear, the second bevel gear, the two-way screw rod, the threaded seat and other parts are used in cooperation, the two lower dies can be driven to be rapidly closed to form a closed interval to be matched with the upper die for die-casting machining, meanwhile, demolding is more convenient, a die-casting piece cannot be abraded, and the die-casting efficiency is improved. And the qualified rate of die castings is higher.

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

The invention relates to the technical field of mining oxygen supply regulation, in particular to a mining working face intelligent oxygen supply regulation system which comprises oxygen supply equipment, air purification equipment is arranged on one side of the oxygen supply equipment, one end of the oxygen supply equipment and one end of the air purification equipment are both connected with connecting pipes, and one sides of the two connecting pipes are jointly connected with air hole regulation equipment. And one side of the air hole adjusting equipment is connected with an air supply pipe, and fan equipment is installed at one end of the air supply pipe. Air can be effectively purified through the effect of the purification assembly, disassembly and replacement are convenient, the gas condition in the mine tunnel can be effectively monitored so that whether gas supply is conducted or not can be rapidly controlled, meanwhile, the oxygen content can be controlled, the safety in the mine tunnel is guaranteed, gas can be fully supplied to workers in the mine tunnel, and the working efficiency is improved. And fixed-point oxygen supply can be carried out according to the conditions in the mine tunnel, and the gas quality in the mine tunnel is improved.

The present invention provides a precise proportioning fermentation device for tricholoma matsutake beverage production, and relates to the technical field of beverage proportioning fermentation, the precise proportioning fermentation device comprises a mixed fermentation mechanism, the mixed fermentation mechanism can be used for preparing a beverage and storing the prepared beverage, the mixed fermentation mechanism is arranged at the top of the mixed fermentation mechanism, and the conveying mechanism is arranged at the bottom of the mixed fermentation mechanism. Raw materials are injected into the mixed fermentation mechanism from the conveying mechanism, the proportioning mechanism is arranged above the conveying mechanism, and the proportioning mechanism extends into the conveying mechanism and is matched with the conveying mechanism to control the injection amount of the raw materials. During use, the internal volume of the metering cylinder is changed through the volume piston in advance, then raw materials are fully injected into the metering cylinder through the feeding pipe, then the bottom of the metering cylinder is driven to exceed the bottom of the proportioning pipe for discharging, and the feeding pipe is sealed through the outer surface of the metering cylinder to avoid leakage; meanwhile, the flow speed of the raw materials in the metering cylinder is increased through extrusion of the volume piston, and the effect of improving the fermentation matching accuracy is achieved.

The invention relates to a spray combustion test device for metal-based gel fuel. The spray combustion test device comprises a combustion unit, a gel supply unit, a premixing gas unit, a fluidizing gas unit, a cooling unit and a data acquisition unit, the combustion unit comprises a furnace body, a spray generator and a combustion observation cover; the combustion observation cover and the furnace body are coaxially arranged in a mutually communicated mode, and the combustion observation cover is located on the upper side of the furnace body. The spray generator is connected with the bottom of the furnace body, and the spray generator and the furnace body coaxially extend into the furnace body; the gas premixing unit is connected with the furnace body; the gel supply unit and the fluidizing gas unit are respectively connected with the spray generator; the cooling unit is respectively connected with the spray generator and the data acquisition unit; and the data acquisition unit is connected with the combustion observation cover. Good atomization of gel can be achieved, flame morphology, smoke, spectrums and condensed phase particles are directly obtained, and high-temperature fuel gas heat tracing flow created by the device is closer to a high-temperature heat environment in an actual engine combustion chamber.

The utility model discloses a switching mechanism of a rotary double-flame lighter based on a grinding wheel driving wheel and a lighter, and the double-flame lighter comprises a gas box, a first flame generating head, a second flame generating head, a first gas pipe for connecting the gas box and the first flame generating head, a second gas pipe for connecting the gas box and the second flame generating head, and a grinding wheel ignition unit, the grinding wheel ignition unit comprises a grinding wheel arranged in a rotating mode and a driving wheel matched with the grinding wheel in a coaxial rotating mode, the switching mechanism comprises a switching block, and the switching block is matched with a driving shaft in a sliding mode in the axial direction. When the driving shaft is located at the first position in the axial direction, the switching block and the first air pipe form air channel release fit, and when the driving shaft is located at the second position in the axial direction, the switching block and the first air pipe form air channel cut-off fit.

The invention discloses a quantity-controlled feeding device of an additive for producing a nanometer purple light reflecting film and a using method, the quantity-controlled feeding device comprises a feeding box, supporting frames are symmetrically and fixedly welded to the two sides of the periphery of the feeding box, a base is fixedly connected to the bottoms of the two supporting frames, and a filter plate is fixedly welded to the interior of the feeding box; material leakage openings are formed in the surface of the filter plate, the lower end of the filter plate is rotationally connected with a control plate, through holes are formed in the positions, corresponding to the material leakage openings, of the surface of the control plate, the lower end of the control plate is fixedly connected with a fixing column, and the lower end of the fixing column is fixedly connected with a bevel gear; according to the quantity-controlled feeding device of the additive for producing the nanometer purple light reflecting film and the using method, through cooperation of the bevel gear and the bevel gear, the control plate rotates, the space rotation angle between the through hole and the material leakage opening is controlled, the gap between the control plate and the filter plate can be adjusted, and therefore the corresponding flow is controlled.

The utility model provides a cutting fluid supply system of a numerical control machining center. The cutting fluid supply system comprises a cutting fluid supplementing system, a precipitation water tank, a machine tool fluid supply system, a cooling system, a filtering system, a backflushing system and a control system. And the cutting fluid supplementing system conveys the stock solution in the raw material barrel to the stock solution box, and supplements the stock solution to the precipitation water tank through the proportional liquid preparation pump and the liquid supplementing pipeline. And the cooling system cools the cutting fluid in the precipitation water tank through a water cooler and a heat exchanger. And the filtering system comprises a back-flushing scraper chip cleaner and a cloth bag filter and is used for filtering and purifying the cutting fluid. And the backflushing system is used for cleaning a backflushing filtering roller through a backflushing pump. And the machine tool liquid supply system conveys the cooled and filtered cutting liquid to a machine tool liquid supply pipeline. According to the utility model, all the systems are matched and linked, so that the full-automatic operation of conveying, distributing, replacing, filtering and recycling cutting fluid and cleaning the filter screen is realized, the labor intensity is reduced, the labor cost is saved, and the cutting fluid utilization rate and the machining efficiency of a machine tool are improved.

The invention is suitable for the technical field of oil and gas drilling, and provides a static push type rotary steering tool fatigue test bench, which comprises a fixed support, a fixed platform and a working platform, the fixed platform comprises a horizontal fixed bracket, a vertical fixed bracket, a steel cable, a motor, a fixed winch, a positioning bolt and a fixed pulley; the working platform comprises a power section, an execution section and a resistance section, and the power section, the execution section and the resistance section are all connected to the working platform through fixing supports. The device is simple in structure and easy to operate; the complex working environment of a static pushing type rotary guiding bottom drilling tool assembly can be simulated, and the influence of drilling fluid flowing, guiding force application and drill bit-rock interaction on the fatigue life of the bottom drilling tool assembly is considered; a multi-axial fatigue failure mode of a bottom drilling tool assembly under an external load can be simulated; the fatigue life test can be carried out on the integral structure or a certain part of the rotary guide bottom drilling tool assembly, and random external load can be applied to an experimental object.

The utility model relates to an electromagnetic pulse valve, which belongs to the technical field of electromagnetic valves and comprises a valve body and a valve cover, the valve body is fixedly connected with the valve cover, a diaphragm is arranged at the joint of the valve body and the valve cover, a positioning device is further arranged on one side of the diaphragm close to the valve cover, and the positioning device is arranged on one side of the diaphragm close to the valve cover. The diaphragm is connected with the positioning column, when the diaphragm is opened and closed, the positioning column slides in the sliding groove, the limiting block arranged on one side of the sliding groove is matched with the clamping groove formed in the positioning column, the opening degree of the diaphragm can be accurately controlled, and the flow and pressure of gas in the electromagnetic pulse valve are further controlled.

The precision injection equipment comprises a rack, a glue injection tank, a power assembly and a heating assembly are arranged on the rack, a glue adding opening, a pressure pumping opening and a pressurizing opening are formed in the top of the glue injection tank, a glue outlet is formed in the bottom of the glue injection tank, the glue adding opening communicates with a material tank, the pressure pumping opening communicates with a vacuum pump, and a first pressure electromagnetic valve is arranged at the pressurizing opening; a flow electromagnetic valve is arranged at the glue outlet; the power assembly is used for conveying pressure into the glue injection tank, and the heating assembly is used for heating the glue injection tank; a detection assembly is further arranged and used for detecting the pressure, the resin liquid level and the temperature in the glue injection tank, so that the controller controls opening and closing of the first pressure electromagnetic valve and starting and stopping of the vacuum pump and the heating assembly. By arranging the detection assembly, the controller can control the first pressure electromagnetic valve, the vacuum pump and the heating assembly according to a detection signal, control over the pressure in the glue injection tank and automatic feeding and heating are achieved, meanwhile, the injection flow can be controlled by adjusting the opening degree of the flow electromagnetic valve, and then automatic accurate injection is achieved.

The invention relates to 3D micro-fluidic printing equipment which comprises a base, a supporting seat and a supporting arm are installed on the upper surface of the base, a bottom plate used for containing a printed product is arranged on the upper surface of the supporting seat, a spray head support is movably arranged on the front side of the supporting arm, and a 3D micro-fluidic printing spray head is fixedly connected to the bottom end of the spray head support. And a boss is arranged on the front side of the 3D micro-fluidic chip. According to the invention, gas and a material are respectively introduced into the 3D micro-fluidic chip through the inlet A and the inlet B, and after the gas and the material in the bubble generation layer are converged, the material containing a large number of bubbles is generated and is used for printing the porous piezoelectric gel; by adjusting the depths of bolts in a continuous-phase threaded hole A, a continuous-phase threaded hole B, a continuous-phase threaded hole C, a continuous-phase threaded hole D, a dispersed-phase threaded hole A, a dispersed-phase threaded hole B, a dispersed-phase threaded hole C and a dispersed-phase threaded hole D, the pressure of gas and the flow of materials are controlled, and porous piezoelectric gels with different porosities can be prepared. And the piezoelectric material has different piezoelectric properties.

The invention provides a liquid flow test device and method for a double-component nozzle assembly, and solves the problem of flow characteristic measurement under the condition of simultaneous radial liquid feeding of inner and outer nozzles in the double-component nozzle assembly, the liquid flow test device comprises a test upper shell, a test lower shell, a cushion block and a blanking cap, the upper testing shell comprises a first liquid inlet pipe nozzle, a pressing block and an annular body; the lower testing shell comprises a middle sleeve, a liquid collecting ring plate, a second liquid inlet pipe nozzle and a base; the cushion block is of a concave structure and is provided with a blind hole and a radial communicating hole; the upper end of the blanking cap makes contact with the lower end of the cushion block to achieve the sealing effect, and the lower end blocks an inner cavity of the inner nozzle and is higher than the upper end face of the inner nozzle. The upper end of the double-component nozzle assembly is located in the annular body, and the lower end penetrates through the base. The pressing block is arranged at the upper end of the middle sleeve and fixedly connected with the base. The device is compact in structure, firm in fixation and convenient to assemble and disassemble, and can meet the test of nozzle assemblies with various radial apertures.

The invention discloses a gas pressure reducer, and belongs to the technical field of pressure reducers. A gas pressure reducer comprises a gas cylinder and a switch assembly fixedly connected to the gas cylinder, and further comprises a pressure reducing assembly fixedly connected to the switch assembly, a split upper shell is fixedly connected to the pressure reducing assembly, a switch button is installed in the split upper shell in a sliding mode, and the switch button is fixedly connected to the pressure reducing assembly. A cleaning part for cleaning the split upper shell is arranged in the split upper shell, when the switch button slides, the cleaning part cleans the interior of the split upper shell, the quantitative component is fixedly connected to the interior of the pressure reduction assembly, a valve rod is connected to the switch button, the valve rod is installed in the quantitative component in a sliding mode, and the valve rod is connected to the pressure reduction assembly. A limiting part for limiting the valve rod is arranged in the quantifying part; the brush plate reciprocates on the inner wall of the split upper shell, so that internal dust is cleaned, dust is effectively prevented from entering the trachea of a user, and the probability of occurrence of respiratory system problems is reduced.

The invention discloses a hydraulic oil cylinder high-speed oil supplementing system and an injection molding machine, and belongs to the technical field of injection molding machine hydraulic systems, the hydraulic oil cylinder high-speed oil supplementing system comprises an oil cylinder, a control oil way, an oil supply loop and an oil tank, the control oil way is communicated with the oil cylinder, one end of the oil supply loop is communicated with the control oil way, and the other end of the oil supply loop is communicated with the oil tank; the control oil way comprises a first cartridge valve, a second cartridge valve, a third cartridge valve, a fourth cartridge valve, a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, one end of the first cartridge valve is communicated with a rodless cavity of the oil cylinder, the other end of the first cartridge valve is communicated with the oil tank, one end of the second cartridge valve is communicated with the rodless cavity of the oil cylinder, and the other end of the second cartridge valve is connected with the oil supply loop. The first electromagnetic valve controls opening and closing of the first cartridge valve and the second cartridge valve, the first cartridge valve and the second cartridge valve act asynchronously, one end of the third cartridge valve is communicated with a rod cavity of the oil cylinder, the other end of the third cartridge valve is connected with an oil supply loop, one end of the fourth cartridge valve is communicated with a rod cavity of the oil cylinder, and the other end of the fourth cartridge valve is connected with an oil tank. The second solenoid valve controls opening and closing of the third cartridge valve, the third solenoid valve controls opening and closing of the fourth cartridge valve, the third cartridge valve and the fourth cartridge valve act asynchronously, and the four cartridge valves are combined directly to control oil inlet and oil return of the oil cylinder, so that the length of the moving distance of hydraulic oil is shortened, and the flowing resistance of the hydraulic oil is reduced; and the action sensitivity of the oil cylinder is improved, so that the production efficiency is improved.

The invention discloses raw material screening equipment for canned fruit processing, and relates to the technical field of raw material screening. According to the raw material screening equipment for canned fruit processing, through the design of the composite mechanism, fruits enter the composite shell from the input mechanism, on one hand, the descending flow of the materials is controlled, on the other hand, the descending speed of the fruits is slowed down, collision between the fruits and the equipment is reduced, and it is avoided that the surfaces of the fruits are damaged, the eating taste is affected and bacterial infection is avoided; a first motor is started to drive a central rotating shaft to rotate, so that a cleaning mechanism rubs the fruits, the effect of cleaning impurities on the surfaces of the fruits is achieved, soil, branches and leaves on the surfaces of the fruits are removed, and the cleanliness of the fruits is improved; and the stirring mechanism drives the fruits to rotate, friction between the fruits and the cleaning mechanism is promoted, the fruit cleaning speed is increased, and the operation efficiency is improved.

The utility model discloses a salted duck egg white membrane ultrafiltration desalting device which comprises a diluting and stirring unit and an ultrafiltration unit, the diluting and stirring unit comprises a material barrel, an inverted-U-shaped frame, a stirring motor, a stirring shaft and a plurality of stirring paddles, an ultrasonic wave generating unit is installed at the material barrel, a diluting pipe and a discharging pipe are connected to the material barrel, two feeding openings are formed in the top of the material barrel, and the two feeding openings are communicated with the stirring shaft. The ultrafiltration unit comprises a liquid inlet header pipe, a discharge header pipe, a backwashing header pipe, a waste liquid header pipe and a plurality of ultrafiltration pipes. According to the membrane ultrafiltration desalting device, the main feeding pipe and the auxiliary feeding pipe can be used for feeding at the same time, so that rapid feeding is achieved, the filtering unit is installed at the feeding port and used for filtering impurities, and the filtering unit can be rapidly replaced; the multiple pipes of the ultrafiltration unit are arranged in parallel, so that the ultrafiltration and backwashing operations are more flexible, and the liquid flow in the treatment process can be effectively controlled, thereby improving the efficiency and quality of salted duck egg white membrane desalination.

The invention relates to a full-flow circulating liquid rocket engine adopting a precombustion chamber with a fixed mixing ratio, and relates to the field of rocket engines. An oxygen-enriched precombustion chamber and a fuel-enriched precombustion chamber each comprise a combustion component and a mixing component; the oxidant feeding pipe communicates with the oxygen-enriched pre-combustion chamber combustion component, the oxygen-enriched pre-combustion chamber mixing component and the rich-combustion pre-combustion chamber combustion component, and the fuel feeding pipe communicates with the rich-combustion pre-combustion chamber mixing component, the rich-combustion pre-combustion chamber combustion component and the oxygen-enriched pre-combustion chamber combustion component. The volume ratio of the oxidizing agent and the fuel entering the oxygen-enriched pre-combustion chamber combustion component and the fuel-enriched pre-combustion chamber combustion component is a fixed value. According to the method, engine thrust control decoupling is achieved, controllability is enhanced, the deep throttling capacity and low-frequency combustion stability of the engine are improved, and a control system is greatly simplified. The mixing ratio in the combustion process of the pre-combustion chamber is fixed, the design of the pre-combustion chamber is simplified, the combustion stability of the pre-combustion chamber during deep throttling is improved, and the reliability and the high-frequency combustion stability of the pre-combustion chamber are improved.

The utility model belongs to the technical field of chemical raw material processing, and particularly relates to a solid feeding device for chemical raw materials, which comprises a feeding hopper, a rotating shaft rotatably mounted between two sides of the feeding hopper, a screen mounted on the outer wall of the rotating shaft, a sliding rod fixedly mounted on the bottom side of one end of the screen, a support plate fixed on one side of the feeding hopper, and a rod hole penetrating through one end of the sliding rod. An arc-shaped block is fixedly connected to the bottom side of the sliding rod, a rotating shaft is installed at the output end of the driving motor, and a cam is installed on the outer wall of the rotating shaft; the chemical raw materials are screened through the screen, large-particle impurities are intercepted by the screen, the driving motor is started, the output end of the driving motor drives the rotating shaft and the cam to rotate, and when the cam makes contact with the arc-shaped block, the arc-shaped block and the screen are pushed to reciprocate, so that the chemical raw materials on the screen are vibrated and can be screened through the screen more easily; and large particles in the raw materials can be conveniently screened, the mixing uniformity is guaranteed, meanwhile, the screen is made to vibrate, and the screening effect is improved.

The invention discloses a ternary battery wet aluminum removal recovery reaction kettle and a recovery method, and relates to the technical field of battery recovery. Comprising a reaction kettle body, the top end of the reaction kettle body is fixedly connected with a third motor used for controlling a transmission shaft to rotate, and the outer wall of the transmission shaft is slidably connected with a partition plate assembly used for dividing an inner cavity of the reaction kettle body into a plurality of chambers. Through the arrangement of the filter assemblies and the associated assemblies and the design of the number of the interiors of the filter cartridges in the fixing frame, alternate use of the filter cartridges is achieved, continuous filtration can be achieved, when precipitates are generated in the filter cartridges, the precipitates can be attached to the inner walls of the filter cartridges, and after primary filtration is conducted in the filter cartridges, the precipitates can be separated from the filter cartridges. The cleaning assembly can be used for cleaning the inner wall of the filter cartridge, the collecting device is used for collecting precipitates, the precipitates in the filter cartridge can be quickly removed through the design, the production rate of the precipitates is prevented from being reduced due to the existence of the precipitates, and therefore the time needed by filtering is guaranteed.

The utility model relates to the technical field of thermal management of vehicles, in particular to a thermal management system of a vehicle and the vehicle, and aims to solve the problem that the heating capacity of a thermal management system of an existing new energy vehicle is insufficient in a low-temperature environment. Therefore, the heat management system comprises a compressor, an air conditioning box assembly and a gas-liquid separator, the two ends of the air conditioning box assembly are communicated with an exhaust port of the compressor and an inlet of the gas-liquid separator respectively, an outlet of the gas-liquid separator is communicated with an air return port of the compressor, and the heat management system further comprises a circulating pipe connected with the air conditioning box assembly in parallel. By arranging the circulating pipe, the compressor and the gas-liquid separator form a self-circulation heating loop, so that the compressor can cyclically compress a refrigerant in the self-circulation heating loop, the compression density and the compression temperature of the refrigerant are improved, the flow and the temperature of the refrigerant entering the air conditioning box assembly are improved, and the service life of the air conditioning box assembly is prolonged. The heating capacity of the thermal management system of the vehicle in the low-temperature environment is improved, and the use experience of a user is improved.

The invention aims to provide an intelligent adjustable electric auxiliary turbocharging system and a control method thereof, belongs to the field of engines, realizes optimal matching of an intake and exhaust system of a diesel engine through intelligent control of each adjustable part, improves the economical efficiency and low working condition performance of the whole machine, solves the problems of narrow high-efficiency area of a gas compressor, low turbine efficiency and the like, and improves the working efficiency of the diesel engine. The requirements under different working conditions are met, and the working efficiency and stability of the engine are optimized under the working conditions of variable rotating speed and variable load. The specific adjusting strategy comprises the step of adjusting the angles of an inlet guide blade, a diffuser blade and a turbine stationary blade according to the operation working condition of the diesel engine, so that the performance of the diesel engine and the fuel economy are improved. By jointly adjusting the three adjustable parts, the performance of the turbocharger can be remarkably improved, the overall performance of the diesel engine is improved, and the efficient operation range of the diesel engine is effectively widened.

The invention discloses a system and a method for realizing aeration control of an aerated grit chamber based on redundant air volume of an aerobic tank, and belongs to the technical field of sewage treatment. Data is acquired and transmitted to a central control system and a computer through a switch I, a switch II and a switch III; calculating the aeration demand air volume of the aerobic tank, the redundant air volume and the aeration rate of the aerated grit chamber to obtain the demand air volume, the redundant air volume and the aeration rate of the aerated grit chamber; judging and processing the gas-water ratio of the aerated grit chamber: realizing the consistency between the display value of the branch pipe flowmeter and the calculated value of the aeration rate of the aerated grit chamber; the computer comprehensively analyzes the redundant air volume of the aerobic tank and the aeration rate of the aerated grit chamber, the air volume of the air blower is judged and processed, and the aeration rate of the aerated grit chamber is controlled by increasing or decreasing the rotating speed of the air blower. The precise aeration efficiency of the aerated grit chamber is improved, the energy is saved, the consumption is reduced, the grit setting effect is optimized, and the treated water quality is improved; unnecessary energy and carbon source consumption is reduced, and the operation cost of a sewage treatment plant is reduced.

According to the centrifugal micro-fluidic chip provided by the utility model, the exhaust channel is led out from the fluid channel between the reaction cavity and the detection cavity, the exhaust direction of the exhaust channel is opposite to the rotating centrifugal direction, the exhaust port is connected with the outside, the waterproof breathable film covers the exhaust port, and the exhaust port is higher than the fluid channel; by combining the atmospheric pressure internal and external balance principle and the centrifugal driving performance, the flow of gas and liquid in the reaction cavity and the detection cavity can be effectively controlled, the sample amount entering each cavity can be effectively controlled, multiple detection of nucleic acid can be completed only through one-time centrifugation, a to-be-detected sample can stably remain and react after entering each cavity, the sample backflow is effectively prevented, and the detection efficiency is improved. The problem of mutual interference or pollution is avoided; meanwhile, one or more concentric sub-chips can be arranged outside the chip body, so that high-throughput detection of more samples and more detection items can be realized, and the detection efficiency is improved.

The present invention relates to the technical field of condensers, and discloses an integrated temperature control optimized condenser system, comprising an outer tube, a bracket arranged at the bottom of the outer tube, covers arranged at both ends of the outer side of the outer tube, a refrigerant joint arranged at the outer side of the outer tube, a cooling medium joint arranged at the outer side of one end cover, a mounting plate arranged inside the outer tube, a heat exchange tube arranged in the mounting plate, and also comprises an adjustment component arranged on the surface of the mounting plate, and a control component arranged on the surface of the adjustment component. The integrated temperature control optimized condenser system, by setting the adjustment component, controls the movement of a corresponding number of adjustment strips when the temperature needs to be adjusted, so that a certain proportion of the connecting holes are docked with the docking port, and only needs to replace this part of the heat exchange tubes during maintenance, thereby extending the service life of the entire equipment, and thus ensuring the flow rate of the cooling medium in the heat exchange tubes, avoiding the accumulation of impurities in the cooling medium, and ensuring the heat exchange efficiency of the heat exchange tubes.

The invention discloses an industrialized seedling raising method for tissue culture seedlings of Eucalyptus robusta in autumn and winter in the Xiaoqing region, and relates to the technical field of plant seedling raising. The seedling culture method comprises the following steps: transplanting tissue culture seedlings of Eucalyptus robusta after seedling hardening into a completely infiltrated matrix section for culture, spraying a winter seedling culture compound foliar fertilizer during culture, and then putting container seedlings into a tray and putting the tray into a Eucalyptus robusta winter seedling culture shed for culture. Wherein the Eucalyptus robusta winter seedling raising shed sequentially comprises an elevated seedling raising system, a second-stage heat preservation shed and a third-stage heat preservation shed from inside to outside, a two-layer air cushion buffer structure can keep the temperature in the shed stable, the elevated seedling raising system comprises a seedbed, a water retention and root promotion layer and an inner heat preservation shed, and the water retention and root promotion layer is made of acrylic cotton. The invention also provides a formula of the compound foliar fertilizer for seedling raising in winter. The seedling raising method provided by the invention effectively solves the problems of excessive growth of stems of Eucalyptus robusta seedlings in winter, hibernation of tissue culture seedlings of Eucalyptus robusta and easy damping-off due to high humidity.

The invention relates to the technical field of waste gas treatment, in particular to a waste gas adsorption fixed bed air uniformizing device which comprises an air inlet pipe installed on an air uniformizing box, an adjusting mechanism for adjusting the amount of waste gas entering the air uniformizing box is arranged on the air inlet pipe, and the adjusting mechanism is fixed to one side of the air uniformizing box. A flow guide mechanism for guiding waste gas to directionally flow in the air uniformizing box is arranged in the air uniformizing box, and a cleaning mechanism for removing dust in the air uniformizing box is arranged on the air uniformizing box. According to the waste gas treatment device, the flow guide mechanism is arranged, in the waste gas treatment process, waste gas is guided, waste gas backflow can be prevented, gas can be evenly distributed in an air distributing box, and a filter plate can be rapidly and conveniently disassembled and assembled; according to the waste gas treatment device, the speed and flow of waste gas entering the treatment device can be controlled, and dust on the filter plate can be scraped off in the process of drawing the filter plate by arranging the dust removal mechanism.

The invention discloses an Enshi Yuwu digital rolling unit and a rolling method. The Enshi Yuwu digital rolling unit comprises a continuous dynamic circulating feeding system, a rolling device, a secondary vibration discharging system and a control system, through effective matching of the continuous dynamic circulating feeding and discharging device, the rolling device and the control system, digital operation of the Enshi Yulu rolling procedure can be achieved, redundant tea which does not enter the rolling machine can be recycled in the operation process, compared with a traditional method, a user does not need to frequently and manually carry the redundant tea, the workload is reduced, and the production efficiency is improved. The working efficiency is improved. Through cooperative use of the mechanisms, the problems of difficult excess material recovery, non-uniform deblocking, low rolling process standard and the like in the tea rolling process are solved, the quality of the Enshi Yulu dews is improved, the processed Enshi Yulu dews have the characteristics of high efficiency, high standard, high intelligence and the like, and the Enshi Yulu dews are of great significance to development of the Enshi Yulu dews.

The invention discloses a self-drip bipolar electrocoagulation forceps, which relates to the technical field of medical devices. The technical key points are as follows: the forceps handles are provided on both sides of the electrode seat, the forceps handles are connected with conductive tips, a flow guide tube is provided on the forceps handles, a control mechanism for controlling the flow guide tube is sleeved on the forceps handles, the control mechanism comprises a control shell sleeved on the forceps handles, a through hole for penetrating the flow guide tube is provided on the control shell, a control slot is provided on the control shell, a control rod is movably provided in the control slot, a pressing rod is provided at one end of the control rod facing the through hole, a control button is connected at the other end of the control rod, a first spring sleeved on the pressing rod is provided at one end of the control slot close to the through hole, an elastic limiting plate is provided on the control rod, a limiting block is provided at one end of the elastic limiting plate away from the control rod, and a closing slot connected to the control slot is provided outside the control shell; the invention realizes long-term self-sealing and self-connection of the flow guide tube, reduces the workload of doctors, and improves convenience of use.