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40results about How to "Widespread" patented technology

Method for extracting natural algicide from Acorus calamus L and algae inhibition method

The invention discloses a method for extracting active components for algae inhibition from Acorus calamus L tubers. According to the invention, an organic solvent is directly used to extract the active components so as to obtain the algicide, or the organic solvent is used for sequential extraction to obtain the algicide. The direct extraction method of the organic solvent comprises the following concrete steps of: extracting washed, dried and crushed Acorus calamus L tubers for 2-5 times respectively by using petroleum ether, ethyl acetate and anhydrous ethanol, filtering, and condensing to obtain the active components A, B and C for algae inhibition. The sequential extraction method of the organic solvent comprises the following concrete steps of: extracting by the use of anhydrous ethanol to obtain an extract C, dissolving the extract C in 80% of a methanol aqueous solution, carrying out isopyknic extraction for 2-3 times by the use of petroleum ether, condensing the petroleum ether layer to obtain a first active component for algae inhibition, diluting residual methanol aqueous solution to 50% by the addition of water, carrying out isopyknic extraction for 2-3 times by the use of ethyl acetate, and condensing the ethyl acetate layer to obtain a second active component for algae inhibition. The extraction method is simple and easy to operate. The extracted active components, which are used as the algicide, are cheap and nontoxic, require low cost, and are suitable for practical popularization and application. The algicide can be used without the restrictions of region, solar term, temperature and the like.
Owner:YUNNAN UNIV

External air conditioner wind blocking component

ActiveCN106766052ADelay the time to stop coolingWidespreadCondensate preventionAir-flow control membersCold airStop time
The invention relates to the technical field of air conditioners, in particular to an external air conditioner wind blocking component. The external air conditioner wind blocking component comprises an arc-shaped wind baffle and a connecting rod and further comprises a second grade wind baffle. Both ends of the connecting rod are respectively connected to an air conditioner shell and the second grade wind baffle, the arc-shaped wind baffle is connected to the connecting rod, a connecting position between the arc-shaped wind baffle and the connecting rod is located between two ends of the connecting rod, and the arc-shaped baffle is of a hollowed structure. During refrigeration of the air conditioner, part of air out from the air conditioner impacts the arc-shaped wind baffle and is blown out upwards and backwards from the edge of the arc-shaped wind baffle and gaps of the air conditioner shell, the other part of air impacts the second grade wind baffle after passing through the arc-shaped wind baffle and is blown out from an outlet formed between the second grade wind baffle and the arc-shaped wind baffle, such that the air out from the air conditioner is diffused to a wider region, cold air accumulated around the air conditioner is reduced, and further the refrigeration stopping time of the air conditioner is delayed compared with prior art, such that a room temperature is close to a preset refrigeration temperature as much as possible.
Owner:北京快思勤科技有限公司

Method for extracting natural algicide from Acorus calamus L and algae inhibition method

The invention discloses a method for extracting active components for algae inhibition from Acorus calamus L tubers. According to the invention, an organic solvent is directly used to extract the active components so as to obtain the algicide, or the organic solvent is used for sequential extraction to obtain the algicide. The direct extraction method of the organic solvent comprises the following concrete steps of: extracting washed, dried and crushed Acorus calamus L tubers for 2-5 times respectively by using petroleum ether, ethyl acetate and anhydrous ethanol, filtering, and condensing to obtain the active components A, B and C for algae inhibition. The sequential extraction method of the organic solvent comprises the following concrete steps of: extracting by the use of anhydrous ethanol to obtain an extract C, dissolving the extract C in 80% of a methanol aqueous solution, carrying out isopyknic extraction for 2-3 times by the use of petroleum ether, condensing the petroleum ether layer to obtain a first active component for algae inhibition, diluting residual methanol aqueous solution to 50% by the addition of water, carrying out isopyknic extraction for 2-3 times by the use of ethyl acetate, and condensing the ethyl acetate layer to obtain a second active component for algae inhibition. The extraction method is simple and easy to operate. The extracted active components, which are used as the algicide, are cheap and nontoxic, require low cost, and are suitable for practical popularization and application. The algicide can be used without the restrictions of region, solar term, temperature and the like.
Owner:YUNNAN UNIV

Spray purification capture tower of UV paint and plastic paint

The invention relates to the technical field of spray purification of UV paint and plastic paint and discloses a spray purification capture tower of UV paint and plastic paint. The spray purificationcapture tower comprises a tower cover. Ring frames arranged at equal intervals are fixedly connected between the inner side walls of the tower cover. Connection racks arranged at equal intervals are fixedly connected between the inner rings of the ring frames. S-shaped partition plates are installed at equal intervals between the bottoms of the multiple connection racks. The inner side wall in left or right of the tower cover is fixedly provided with three sets of fixed sleeves arranged at equal intervals. Each set of the fixed sleeves comprises two fixed sleeves. Circular tubes are fixedly connected between each set of the fixed sleeves. The outer surface of the circular tube is provided with a spraying mechanism in a ring. The bottom of the tower cover is provided with a through cavity.The existing UV paint production waste gas collection and treatment device has no obvious purification effect, low work efficiency and a low resource utilization rate. The spray purification capture tower achieves good treatment and purification effects and high work efficiency and saves water.
Owner:ANHUI WANSHANHONG ENVIRONMENTAL PROTECTION TECH CO LTD

HDPE multi-rib reinforced winding corrugated pipe and production method and device

According to the HDPE multi-rib reinforced winding corrugated pipe disclosed by the invention, through cooperative use of the vertical ribs, the reinforcing ribs and the supporting ribs, when the surface of the winding pipe is subjected to pressure of a soil layer, the umbrella-shaped structures can play a role in supporting the winding pipe, so that the winding pipe is not liable to collapse and has the advantage of high impact resistance, and the ring stiffness of the winding corrugated pipe is effectively improved. According to the production method of the HDPE multi-rib reinforced winding corrugated pipe, the advantage of being easy and convenient to operate is achieved, the quality of the produced HDPE multi-rib reinforced winding corrugated pipe is high, and the percent of pass of products is greatly improved; according to the production device of the HDPE multi-rib reinforced winding corrugated pipe, the gear motor can be used for driving the movable plate, the stirring rod and the inclined rod to move synchronously, and the purposes of saving energy and electricity can be achieved without using a plurality of gear motors for driving; and meanwhile, in the process of screening the raw materials through the screening mechanism, the raw materials can make full contact with heat, and the drying effect is further improved.
Owner:HUNAN HENGYUAN NEW MATERIAL TECH DEV CO LTD

External air conditioner windshield assembly

The invention relates to the technical field of air conditioners, in particular to an external air conditioner wind blocking component. The external air conditioner wind blocking component comprises an arc-shaped wind baffle and a connecting rod and further comprises a second grade wind baffle. Both ends of the connecting rod are respectively connected to an air conditioner shell and the second grade wind baffle, the arc-shaped wind baffle is connected to the connecting rod, a connecting position between the arc-shaped wind baffle and the connecting rod is located between two ends of the connecting rod, and the arc-shaped baffle is of a hollowed structure. During refrigeration of the air conditioner, part of air out from the air conditioner impacts the arc-shaped wind baffle and is blown out upwards and backwards from the edge of the arc-shaped wind baffle and gaps of the air conditioner shell, the other part of air impacts the second grade wind baffle after passing through the arc-shaped wind baffle and is blown out from an outlet formed between the second grade wind baffle and the arc-shaped wind baffle, such that the air out from the air conditioner is diffused to a wider region, cold air accumulated around the air conditioner is reduced, and further the refrigeration stopping time of the air conditioner is delayed compared with prior art, such that a room temperature is close to a preset refrigeration temperature as much as possible.
Owner:北京快思勤科技有限公司

Error detection device for hourglass worm

The invention discloses an error detection device for a hourglass worm, comprising a body, a spindle unit and a measuring unit, wherein the spindle unit comprises a spindle servo motor, a spindle, a workpiece fixture to be measured and a tailstock; the spindle servo motor drives the spindle to rotate; the workpiece fixture to be measured is fixedly matched with the spindle in the circumferential direction; the measuring unit comprises a base, a rotating table, a measuring contact, a data acquisition system and a computer; the rotating table is arranged on the base in the manner of rotating around a z-axis; and the measuring contact is arranged on the rotating table in the manner of adjustable position along an x-axis, a y-axis and the z-axis and can rotate around an axis parallel to the z-axis. The coordinate measurement can be carried out for the hourglass worm by adopting the arc measuring method, the line by line measurement can be carried out, the efficiency is higher than that ofthe point by point measurement in the prior art, the influences of subjectivity of human intervention and mechanical error of the standard worm on the detection results are avoided, as different types of measuring contacts are adopted, various errors of the worm can be accurately detected, and the universality is strong.
Owner:CHONGQING UNIV

LED lighting device

The present invention relates to a lighting device using an LED. One embodiment of the invention provides a lamp-shaped LED lighting device that can replace a known lighting device. The lamp-shaped LED lighting device promptly emits the heat generated by an LED element, which influences the optical output and the lifespan of the LED lighting device, through a lamp-shaped frame with a heat-ventilation structure that facilitates air circulation. In addition, the lamp-shaped LED lighting device prevents glare from an LED light source by using a lateral reflecting member, a diffusion lens and a diffusion cover and diffuses the light from the light source widely without optical attenuation. Another embodiment of the invention provides a tube and panel-shaped LED lighting devices that can be replaced with a previous tube-shaped fluorescent light and a panel-shaped lighting device. The tube and panel-shaped LED lighting devices rapidly emit the heat generated by an LED element, which influences the optical output and the life span of the LED lighting device, through a tube and panel-shaped frame with a heat-sink structure. In addition, the tube and panel-shaped LED lighting devices prevent glare from the LED light source by optically arranging a curved reflecting plate, a diffusion plate and a diffusion window which include a diffusion lens at the upper portion of the LED element. Furthermore, the tube and panel-shaped LED lighting devices diffuse the light from the LED light source widely without optical attenuation.
Owner:SOLARKOR
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