345results about How to "Guaranteed flow rate" patented technology

The invention discloses a dynamic hydraulic pressure drip irrigation system, characterized in that, an inlet of a water pump is connected with a caml water source through a pipe, a pressure water source and a reservoir enter a trunk after being connected with an outlet of the water pump; a switch solenoid valve, a check valve, an irrigation main switch and a main filter are arranged in turn on the trunk, a solenoid valve is connected in parallel with the switch solenoid valve through a branch pipe, a fertilization switch and a fertilizer placer are connected with the irrigation main switch in parallel through the branch pipe, a fertilizer controlling valve and a fertilizer pot are connected in turn under the fertilizer placer; a pressure gauge, main filter, a filter flushing valve and a water gauge are arranged on the trunk; a douche is arranged on bottoms of different branches of the branch pipe; each valve is connected with a controller through control lines, a frequency converter is connected between the water pump and the controller. The system causes operation water pressure to change antomatically and dynamically, keeps a larger working water pressure, meanwhile, reduces practical working pressure of the drip irrigation system, also reduces operation cost of the micro irrigation system.

The invention discloses a laser processing method for a steel sieve tube slit. One end point of one long edge of the slit is used an initial point. The method comprises the following steps of: perforating a hole at the initial point of a cut by using pulse laser, and then finishing the cutting of the whole slit from the initial point by using continuous laser. During cutting, oxygen is used as an auxiliary gas, the metal at a cutting point is further heated by using reaction heat released by the reaction of the oxygen and the molten iron at the cutting point, meanwhile the molten iron is changed into ferroferric oxide with good liquidity by using chemical reaction, and the ferroferric oxide is blown away the cutting point by using airflow so as to ensure continuous cutting. The processing method solves the problems of irregular slit shape, slag adhesion at the cut and oblique blowing trace in the conventional laser cut sieve tube slit.

A plasma coupled photocatalyzing module used for gas purifier is composed of the plate electrodes with rigid dielectric barrier layer on its inner surface, the porous photocatalytizing body arranged between two dielectric barrier layers, and the sealing apron arranged to the peripheries of two dielectric barrier layers to form two spaces (one having gas inlet and another having gas outlet). Said gas purifier is composed of at least one said module.

The invention relates to a condensing gas boiler, which belongs to the technical field of heat exchange facilities. The condensing gas boiler mainly comprises a burner and a heat exchange device with smoke and water passages, wherein the heat exchange device comprises a horizontal heat exchanger and a V-shaped heat exchanger which are mutually connected in series; a first group of water pipes forming a roundabout flow passage are distributed at the circumference of the horizontal heat exchanger, and the middle part of the horizontal heat exchanger is provided with a cylindrical combustion chamber; the burner is arranged at one end of the cylindrical combustion chamber, and the smoke passes through the horizontal heat exchanger and enters the V-shaped smoke passage of the V-shaped heat exchanger through a downward through hole; a second group of water pipes forming a roundabout flow passage are distributed in the V-shaped smoke passage at intervals; and reverse heat exchange is formed between the water first flowing through the second group of water pipes and then the first group of water pipes and the smoke coming from the combustion chamber and flowing through the V-shaped smoke passage. The heat exchange is sufficient, the flow rate of the cooled smoke can be kept to ensure the heat exchange efficiency, and the condensing gas boiler has a reasonable structure and occupies small area.

The invention discloses a video cloud storage method and system, as well as a method and a system for previewing a cloud storage video, and aims to overcome the defect of worse reliability of a video cloud storage system in the prior art. The video cloud storage method comprises the following steps: after a management server receives a video program issued by a platform, target storage equipment is determined according to a load balance strategy, and the video program is issued to the target storage equipment; the target storage equipment obtains video streaming from front-end equipment corresponding to the video program according to the video program, and stores the video streaming; when the target storage equipment cannot obtain the video streaming from the front-end equipment, an alarm is sent to the management server; after the management server receives the alarm, the video program is issued to other storage equipment according to the load balance strategy. According to the embodiment of the invention, the adaptability and the work efficiency of the video cloud storage system are effectively improved, and the service life of a streaming media forwarding server is effectively prolonged.

The invention discloses a corrugation self-check double-protection compensator. The compensator comprises an operating corrugated pipe, both ends of the operating corrugated pipe are provided with aninlet end pipe and an outlet end pipe respectively, a draft tube and an external protection tube are provided in and outside the corrugated pipe respectively. The compensator is characterized in that:a connection flange is welded between the operating corrugated pipe and the outlet end pipe, a protective corrugated pipe is connected between the connection flange and the external protection tube,and the protective corrugated pipe is sheathed on the outlet end pipe, and the external protection tube is fixedly provided with a leak detection device. The compensator has the advantages of being capable of ensuring flow quantity and flow rate of media, the protective corrugated pipe act sealing effect to protect the operating corrugated pipe from corrosion by external sewage and impurities, thus prolonging service life of the compensator; the compensate can continue work even the operating corrugated pipe present leakage, thus providing double protection; the protective corrugated pipe hasprotection and compensation effect, thus being capable of avoiding environment hazards caused by media leakage, so the compensator is especially applicable to pipes for conveying toxic and harmful dangerous media.

The invention provides a water tank structure of an instant heating water dispenser, and aims to solve the technical problem that an existing water tank structure of an instant heating water dispenser is simple and poor in steam-water separating effect. The water tank structure comprises a water tank body and an end cover, the water tank body comprises a water level chamber, a steam and water separating chamber, a water return chamber and a steam outlet, the water level chamber is positioned in the middle of the water tank body, a cold water inlet and a cold water outlet are formed in the water level chamber, the steam and water separating chamber and the water level chamber are separated by a first partition, the water level chamber encircles the steam and water separating chamber, a hot water inlet and a hot water outlet are formed in the steam and water separating chamber, the first partition is lower than the water level chamber, the water return chamber and the water level chamber are separated by a second partition, the second partition is lower than the first partition, and a reflow opening is formed in the water return chamber. The water tank structure has the advantages of good steam-water separating effect and water level control effect.

The invention discloses a device and method for preparing single crystal diamonds by laser enhanced plasma CVD. The device comprises plasma CVD equipment and laser equipment, wherein more than 1 set of laser equipment is respectively positioned on the outside of a cylindrical cavity of the plasma CVD equipment, laser emitted by the laser equipment can irradiate onto a substrate table positioned inthe cavity of the plasma CVD equipment; the substrate table is positioned in the middle of the cavity of the plasma CVD equipment, a cooling water circulation system is arranged at the lower part ofthe substrate table and comprises a cooling water inlet and a cooling water outlet; and a raw material gas inlet and an extraction opening are formed in the bottom of the cavity of the plasma CVD equipment. The method combines microwave energy (or electric energy) with laser energy and improves the energy of plasma and the gas dissociation rate in a diamond synthesizing process by using low-cost high-energy laser, thereby improving the synthetic rate of the diamonds and effectively solving the problem of high-speed mass preparation of diamonds.

The invention provides a method for providing active compound orientin with myocardium nourishing function from bamboo leaf. The method is characterized in that bamboo leaf raw material is smashed, the smashed bamboo leaf is added into 8-12 times alkaline water containing borax, heating extraction is carried out for 2-3 times, extracting solution is acidized and then is added into a polyamide chromatographic column, ethanol-water mixed solvent is used for elution, eluent is concentrated, butyl alcohol is used for extraction for 2-3 times, an ODS silicagel column is used for separation, methyl alcohol-water-acetic acid mixed solvent is used for pressurization and elution, thin-layer chromatography monitoring is carried out, orientin fraction is collected, and vacuum drying is carried out, thus obtaining the product. The method has simple operation, high product content and good repeatability.

The invention discloses a crushing-grinding-disc-type kitchen waste processor and a treatment method thereof, and belongs to the technical field of waste treatment. The crushing-grinding-disc-type kitchen waste processor comprises a feeding device, a sealing plug, an upper cover, a cylinder, a base, a bottom disc, a maintenance cover, a motor, a driving shaft, a crushing basket, four toothed crushing knives, three collision blocks, five ring cutting collision knives, an upper grinding disc, a lower grinding disc, a gear fixing disc, a slurry discharging inclined disc, a slurry discharging solenoid valve and a slurry discharging opening. The treatment method comprises a feeding layer, a crushing layer, a grinding disc layer and a waste discharging layer. According to the crushing-grinding-disc-type kitchen waste processor, collision crushing is conducted on the kitchen waste, and grinding disc grinding crushing is conducted on the kitchen waste into a slurry dilution flow to be discharged; and the crushing-grinding-disc-type kitchen waste processor has the beneficial effects that the kitchen waste develops towards the direction of reduction, recycling and harmlessness, collision crushing and grinding disc grinding crushing are conducted on the kitchen waste into a slurry dilution flow so as to be suitable for being discharged to a municipal sewage system in China for treatment.

The present invention discloses a high-efficiency step-by-step tea oil filtering device, comprising a filter tank and a settling tank. A first filter screen, a second filter screen and an isolation plate are sequentially arranged in the inner cavity of the filter tank from left to right. A rotating shaft is arranged in the filter tank, and one end of the rotating shaft extends through the first filter screen and is fixedly connected to a cleaning brush which is matched with the second filter screen. Two discharge holes which are matched with the first filter screen and the second filter screenrespectively are formed in the bottom wall of the filter tank. The bottom end of the filter tank is fixedly connected to an oil residue tank. The top left side of the filter tank communicates with anoil inlet pipe. A stirring rod is arranged in the settling tank, and a plurality of connecting rods are uniformly arranged on the stirring rod, with the other end of each connecting rod hinged to a first stirring blade. According to the present invention, the first filter screen and the second filter screen are arranged to filter raw oil, thereby removing impurities and other solid particles in tea oil. The settling tank is arranged to allow the filtered oil to further settle, thereby guaranteeing complete removal of impurities from tea oil and ensuring the quality of the tea oil.

The invention discloses an air flue type PTC heater. The air flue type PTC heater comprises a square air pipe. A fan and at least one set of heating areas are arranged in the square air pipe. A filtering net used for filtering out dust and moisture is arranged on an air outlet of the fan. Each heating area comprises a plurality of PTC heating plates arranged obliquely, wherein a ventilation interval for passing of airflow is arranged between every two adjacent PTC heating plates. The filtering net is arranged on the air outlet of the fan of the air flue type PTC heater, dust, particles, moistand the like in the air can be removed, dust accumulation and dirt formation on the PTC porous heating plates in the heating areas and the inner wall of the square air pipe are prevented, the influence of dust accumulation on heating efficiency is reduced, the dust removing frequency and maintenance cost are reduced, the quality of heated air is improved, and meanwhile the heating efficiency is improved.

The invention provides a nozzle. The nozzle comprises a nozzle body and a floater, wherein a conical cavity which allows fluid circulation is formed inside the nozzle body; the floater comprises a floater body; a circulation gap from which the fluid flows out is formed by the outer circumferential surface of the float body and the inner circumferential surface of the cavity; the floater is movably arranged relative to the nozzle body in the direction of a connecting line of the inlet end of the cavity and the outlet end of the cavity and tends to move to the inlet end of the cavity; when the floater moves in the direction from the inlet end to the outlet end, the circulation gap is gradually enlarged. When the flow of the fluid entering the inlet end of the cavity is higher, the floater moves in the direction from the inlet end to the outlet end under the action of the impact force of the fluid, and the circulation gap is gradually enlarged, so that the flow speed is effectively decreased; when the flow of the fluid is lower, the circulation gap is smaller, so that the flow speed of the fluid flowing out of the circulation gap is guaranteed favorably, and the function of automatically regulating the flow speed by the nozzle according to the flow magnitude of the fluid is achieved.

The invention discloses a hydraulic turbine generator. The hydraulic turbine generator comprises a hydraulic turbine room and a power generation room; the hydraulic turbine room is provided with a water inlet and a water outlet that have equal calibers and overlapped axes, and are opposite in the directions; a rotating wheel is arranged in the hydraulic turbine room; the rotating wheel is composed of a wheel disc and a water bucket or blades; the hydraulic turbine generator further comprises a reducing pipe connected with the water inlet and an increasing pipe connected with the water outlet; between the inner wall of the hydraulic turbine room and a rotatable sweeping space of the rotating wheel, a design of uniform small clearances is adopted; the power generation room is arranged at the outer side of the hydraulic turbine room; preferably, a contraction angle of the reducing pipe is 15-30 degrees; preferably, the axial length of the reducing pipe is greater than the inside diameter of the large opening; the clearance between the inner wall of the hydraulic turbine room and the rotatable sweeping space of the rotating wheel is less than or equal to 1mm, and less than or equal to 0.5mm preferably. Compared with the prior art, the hydraulic turbine generator disclosed by the invention has the beneficial effects of greatly increasing the velocity of water flow which impacts the blades of the rotating wheel, raising a specific rotary speed and loading ability of the rotating wheel, and further improving power generation efficiency; and meanwhile, the hydraulic turbine generator further has the beneficial effects of keeping the velocity of tail water, and being convenient in mounting and the like.

The invention provides a clothes dryer with an air purifying device. The clothes dryer with the air purifying device comprises an air channel in which the air purifying device is arranged; the air purifying device comprises a housing, and a filtering module fixed in the housing; a reduced section is arranged one end of the housing; an air inlet is formed in the end part of the reduced section; an air outlet is formed in the other end of the housing. According to the clothes dryer with the air purifying device, the air purifying device is arranged in the air channel to purify air entering the air purifying device, so as to remove small and bacteria in the air; the reduced section is arranged to slow down the air entering the housing, thus the time of contacting with the filtering module is increased, and as a result, the air can be fully purified, and the purifying effect is good; meanwhile, an air purifying path extending into the housing and a straight air path directly passing through the air channel are arranged in the air channel of the housing, and therefore, part of the air in the air channel enters the purifying device, and air circulates in the air channel to remove the smell and bacteria in the clothes; meanwhile, the flowing speed of air in the whole air channel can be ensured.

The invention provides a reaction cavity device. The reaction cavity device comprises a cavity body, a tray and a gas inlet device, wherein a reaction cavity is restricted in the cavity body, the tray is arranged in the reaction cavity and can rotate, and the gas inlet device is used for forming a first gas region and a second gas region which are mutually alternate in the cavity body; a process gas is fed into the first gas region, an isolation gas is fed into the second gas region, and a substrate on the tray alternatively passes the first gas region and the second gas region along with the rotation of the tray. The invention also provides substrate processing equipment. According to the reaction cavity device provided by the invention, the impact of byproducts generated after a reactant gas reacts on the film formation of the substrate can be effectively prevented. According to the substrate processing equipment provided by the invention, the impact of the byproducts of the reactant gas on the film formation of the substrate is reduced, process indexes for the film formation of the substrate are promoted, the utilization rate of the reaction gas can also be increased, and the utilization efficiency of the substrate processing equipment is increased.

The invention discloses a glass microballoon manufacturing device comprising a furnace body (1) and a waste gas treatment device, wherein the furnace body (1) is formed by air-tight connection of an upper part and a lower part, the upper part of the furnace body is of a cubic shape, a waste gas emission port (4) is arranged at the top of the upper part, one or more injection-type burners (2) are horizontally installed on the side of the upper part, a preheating air pipe (14) is arranged in the upper part, the lower part of the furnace body is of a square conical shape, and one or more microballoon collectors (3) are arranged at the bottom of the lower part. According to the glass microballoon manufacturing device and the preparation method thereof provided by the invention, the furnace body which adopts the cubic structure enlarges the cooling space; the horizontally installed injection-type burners and the preheating air pipe arranged in the furnace body can give full play to the heat value of fuel, thus reducing energy source waste, saving energy and reducing emission; TiO2 and Al2O3 with relatively lower costs are adopted, the refractive index of the product is greater than or equal to 1.93; and the glass microballoon manufacturing device and the preparation method thereof have the advantages of reducing devitrification, improving the cooling velocity, having good product quality, improving the utilization ratio of raw material, being capable of large-scale production, and the like.

The invention discloses a mud-and-water auto-separating pipeline apparatus and belongs to the technical field of water conservancy transportation pipelines. The pipeline apparatus includes a water inlet pipe, a water outlet pipe and a drainage pipe and also includes a mud-and-water auto-separating part. The mud-and-water auto-separating part includes a cylindrical pipe body, wherein annular steps are formed on an inner side wall of the cylindrical pipe body. An inner fixing base is arranged under the annular steps. An annular groove is formed by the inner fixing base and the inner side wall of the cylindrical pipe body. An annular filter screen is disposed on the annular steps, wherein the top end of the annular filter screen is connected to the annular steps and the bottom end of the annular filter screen is connected to the inner fixing base. A clear water chamber is formed by the inner side wall of the cylindrical pipe body and an outer side wall of the annular filter screen. The water outlet pipe is communicated with the clear water chamber. The water inlet pipe is arranged on the side wall of the cylindrical pipe body and is arranged above the annular steps. The pipeline apparatus can automatically separate mud from water, wherein clear water flows out through the water outlet pipe while a mud and sand mixture is discharged through the drainage pipe. The pipeline apparatus is free of extra kinetic energy, is low in energy consumption and is suitable for agricultural irrigation.

The invention provides a method for biofiltration processing of soot exhaust gas on basis of roofing greening nutritive soil, comprising the following steps: taking roofing greening vegetation and the nutritive soil thereof as biological filler; arranging a supporting layer and a gas distribution device below the biological filler; spraying nutrient solution onto the biological filler; and when liquid phase pH is 6.0-7.5 and temperature is 20-35 DEG C, processing soot exhaust gas. The method of the invention has the advantages of large biomass, high mass transfer efficiency, small possibility of blocking, easy operation and control and the like; the invention expands the application of the roofing greening engineering, combines roofing greening with the processing of soot exhaust gas with a biological method and saves operation cost and floor space.