68results about How to "Act as a filter" patented technology

A liquid leading pump beam method and device belongs to field of optics and laser photoelectron technique. It includes pumping light source, optical coupling device, liquid leading device and fiber. Thereinto: the optical coupling device receives the pumping light omitted by the pumping light source; liquid nozzle, the pumping beam coupled by the optical coupling device is coupled with liquid column spurted by the liquid nozzle; the central line of cooling fluid collector is aimed at the central line of the liquid nozzle; return flexible hose and liquid-in end are connected with the cooling fluid collector; radiator and circlulating pump are in series, the liquid-in port of the radiator and the liquid-out port of the return flexible hose are connected, the output end of the circlulating pump is connected with the lower end of the liquid nozzle; the liquid nozzle, the cooling fluid collector, the return flexible hose, the radiator and the circlulating pump are in series to form a liquid leading device. The invention resolves the high power pumping problem in solid laser and fiber laser, and the output power of laser can be increased, stability and reliability of laser system can be guaranteed.

The invention relates to a multipoint high-frequency microwave signal generating method; in the method, a 2*2 coupling, a Brillouin scattering device and a light filter are used for extracting pump signals and Stokes signals in one or multiple stages, and then the extracted signals are subject to beat frequency to generate one or a plurality of high-frequency microwave signals. The method comprises the following steps: firstly, designing an annular cavity structure based on Brillouin scattering, and arranging a Brillouin scattering device in the annular cavity so as to simultaneously obtain pump signals and Stokes signals in multiple stages; secondly, selecting two or a plurality of laser wavelengths the frequency interval of which is equal to that of the target microwave signal by using the light filter based on a preset reflectance spectrum, wherein all frequency components except for the selected laser wavelengths are inhibited; and thirdly, carrying out the beat frequency on the selected laser wavelengths to generate one or a plurality of microwave signals of which the frequencies are approximately integral multiples of 11GHz.

The invention discloses a farming greenhouse based on a solar generating system. The farming greenhouse includes a greenhouse body in which a space used for plantation is enclosed, a solar ceiling which is mounted on the top of the greenhouse body, a solar generating system which comprises a solar generating assembly which is laid on the solar ceiling. The solar generating system is laid on the ceiling of the farming greenhouse, the solar energy generation can be used for irrigation, illumination and the like, the surplus power can be sold to surrounding peasant households, the clean green energy can be provided, the cost can be reduced, and the environment can be protected. The solar assembly can directly replaces a ceiling of the farming greenhouse, the present farming greenhouse can be very conveniently modified, and the feasibility is high.

A fume dehumidification process is characterized in that a circulation dehumidifier is additionally arranged between a desulfurization island and a fume reheater; a drying agent flows in a plurality of conical funnels for enabling an upper section and a lower section of the circulation dehumidifier to communicate; at the upper section of the circulation dehumidifier, water in fume is absorbed, and a wet drying agent is dried by high-temperature fume to obtain a dry drying agent, and the dry drying agent is delivered to the upper section of the circulation dehumidifier by a lifting bucket to finish circulation of the drying agent, so that water in discharged desulfurized fume is reduced. The fume dehumidification process disclosed by the invention has the beneficial effects: (1) the fume is dehumidified and then heat is discharged, therefore haze is reduced; (2) the circulation of the drying agent is realized; (3) the circulation dehumidifier plays a role of bridging the desulfurization island with a fume reheater; (4) water consumption of a desulfurization system is reduced; (5) risk that the fume reheater equipment is blocked is eliminated; (6) quality of desulfurized gypsum is increased; (7) corrosion damage of the equipment is reduced; (8) heavy metal, such as mercury, can be removed.

The invention discloses a preposed denitrification aeration biofilter and a method for treating sewage and belongs to the field of wastewater treatments. The biofilter comprises a DN tank body and a CN tank body and further comprises a first water storage tank body, a second water storage tank body and an aeration pump, wherein a first water storage tank inner cylinder is placed in the middle of the first water storage tank body; an annular water storage tank buffering groove is arranged at the outer side of the first water storage tank inner cylinder; the height of the water storage tank buffering groove is lower than that of the first water storge tank inner cylinder; and the area between the side wall of the first water storage tank body and the first water storge tank inner cylinder is a first water storage tank storage area. As the water flowing direction of the DN tank is upward, suspended solids are prevented from concentrating in a filler layer, the dirt containing rate of a filler is increased, and backwashing interval time is prolonged. By adopting the preposed denitrification aeration biofilter, the dissolved oxygen of the feeding water of the CN tank can be improved without power, so that subsequent additional oxygen supply amount is reduced; and the preposed denitrification aeration biofilter has the advantages of simple structure, convenient operation and low energy consumption.

The invention discloses a preparation method of melt-blowing fabric dedicated for virus and bacterium filtering killing and belongs to the technical field of melt-blowing fabric production. The methodcomprises the steps that kieselguhr and a polymer raw material are prepared with a volume ratio of 0.3:1 for later use; the polymer raw material is measured, fed into a screw extrusion machine for melting and then extruded out; fibers are jetted out by a melt-blowing die head and then jetted through hot wind traction onto a mesh curtain driven by an accepting device; the kieselguhr raw material is heated and then synchronously jetted onto the mesh curtain; filtering-killing melt-blowing non-woven fabric is formed by sedimentation; and finally the fabric is rolled up by a winding device. According to the method disclosed by the invention, kieselguhr particles are adhered by heat carried by the melt-blowing fibers which are jetted after melting of the polymer raw material and are then adhered on a fusion surface layer of the mesh curtain, so that the filtering-killing non-woven fabric is formed. The melt-blowing fabric produced by the method disclosed by the invention has the beneficialeffects that a sharp shell imbedded with diatom is used and can be stuck on surfaces of viruses and bacteria; and shells or cell wall structures of same can be penetrated during reproduction and motion of the viruses and bacteria, so that the viruses and bacteria can gradually die of dehydration, so that physical filtering killing is realized.

The invention discloses a lens reflectivity measuring method and device. The method comprises the following steps: putting a to-be-detected composition which is at least composed of a plating accompanying sheet, plate glass and refractive index matching liquid positioned between the plate glass and the plating accompanying sheet into a light path of a spectrophotometer to make incident light emitted by a light source of the spectrophotometer received by a receiver of the spectrophotometer after the incident light is reflected and refracted by the to-be-detected composition; turning on the light source of the spectrophotometer, wherein the incident light emitted by the light source is reflected and refracted by the to-be-detected composition to form emergent light, and the emergent light received by the receiver comprises three paths of light; and measuring light intensity of the emergent light received by the receiver, measuring light intensity of the incident light emitted by the light source, and calculating the ratio of the light intensity value of the emergent light to the light intensity value of the incident light, so that the reflectivity of the plating accompanying sheet isobtained. The device realizes accurate measurement of the reflectivity of the lens, is high in precision, simple in structure and convenient to operate.

The invention relates to the field of health drink. In order to solve the problem that recovery of the water temperature takes a long time in an extracting step in the conventional honeysuckle-flavored beer brewing process, the invention provides a brewing method of honeysuckle-flavored beer. The brewing method comprises the following steps: selecting a raw material, extracting, clarifying and stabilizing, blending and packaging, wherein the extracting step comprises the following substeps: adding honeysuckle into an extracting tank, adding hot water, and starting a heater of the extracting tank for heating; starting a temperature control system of the extracting tank, when a main controller of the temperature control system detects that the water temperature is higher than 85 DEG C, increasing the rotation speed of a stirring blade, while when the main controller detects that the water temperature is close to 85 DEG C, reducing the rotation speed of the stirring blade, and during the moment, performing heating operation of the heater all the time; rotating telescopic heat-dissipating plates hinged to the two sides of the upper part of the extracting tank, wherein the rotated heat-dissipating plates scrape off honeysuckle on the stirring blade; and opening a water outlet in one side of the extracting tank to discharge a honeysuckle extract.

The invention relates to a passive filter for realizing solid liquid gas phase separation. The passive filter is characterized in that a main body part of the passive filter mainly comprises a phase separation part of a basket-shaped filter screen the opening of which is upward, a liquid phase collection cavity, a receiving tank, a gas phase outlet, a condenser and a liquor condensate collection cavity, and the passive filter combines with some valves, a rapid joint and a flexible pipe auxiliary part. The passive filter can realize the solid liquid gas phase separation effect through a reasonable structural design under the condition that an active part is not deployed.