14results about How to "Stable internal environment" patented technology

The invention discloses a photovoltaic power generation and energy storage mechanism and a use method thereof, and relates to the technical field of photovoltaic power generation, the photovoltaic power generation and energy storage mechanism comprises a placement box, a photovoltaic power generation and energy storage device body is installed in an inner cavity of the placement box, and a first dustproof net plate is installed on the inner side of the top of the placement box; a cleaning assembly is arranged on the outer surface of the containing box and comprises two mounting boxes, a fixing box is fixedly connected to the left side of the containing box, and a motor is connected to an inner cavity of the fixing box through bolts. The dust screen can be cleaned synchronously in the heat dissipation process, dust can be prevented from being accumulated and blocking the dust screen in long-time operation through the design, the problem that the heat dissipation efficiency is low due to the fact that the air flow circulation performance is reduced is solved, and when the sweeping assembly and the heat dissipation device work cooperatively, it is ensured that the dust on the dust screen is removed while the device is cooled.

The invention discloses an application and method of Tween 80 combined immobilization technology enhanced microorganisms in degradation of naphthalene pollution in water, the main body of the combined immobilization technology is SA / CS at Tween 80 hydrogel microspheres loaded with NM-1 flora, and the NM-1 flora is halotolerant bacteria obtained by enrichment and domestication from deep-sea sediments of a certain sea ditch. The SA / CS at Tween 80 microspheres are formed by crosslinking sodium alginate (SA), chitosan (CS) and Tween 80, hydroxyl functional groups of the Tween 80 and SA / CS are crosslinked to enhance the mechanical strength of the microspheres and regulate and control the pore structure to improve the mass transfer efficiency, hydrophobic-CH functional groups at the end positions of the Tween 80 strengthen the adsorption capacity to naphthalene, meanwhile, a co-crosslinking structure at the interface of the SA / CS at Tween 80 hydrogel microspheres forms a biochemical metabolic reaction buffer area, and the adsorption capacity to naphthalene is improved. The direct toxicity stress of the high-concentration naphthalene on the flora is effectively avoided, and the effective biological removal of the high-concentration naphthalene is realized. The SA / CS-coated Tween 80 hydrogel microspheres prepared by the invention can effectively maintain the efficient metabolic activity and degradation efficiency of the loaded NM-1 flora, and show excellent cycle stability and good engineering application potential.

The invention relates to the technical field of active component extraction of rhizoma polygonati, in particular to a method for extracting and separating multiple active components in rhizoma polygonati, which comprises the following steps: step 1, raw material preparation: removing silt from rhizoma polygonati rhizome, cleaning, drying the cleaned rhizoma polygonati to constant weight, and grinding the dried rhizoma polygonati in a grinding centrifugal device; step 2, component extraction: performing ultrasonic-assisted pretreatment on the rhizoma polygonati; extracting flavonoid compounds in rhizoma polygonati by adopting an alcohol extraction method; extracting polysaccharide components in rhizoma polygonati by adopting an alcohol precipitation method; step 3, separation and purification: purifying the polysaccharide by using anion exchange column chromatography; and the flavonoid compounds are purified by using a macroporous resin adsorption method. According to the method disclosed by the invention, ultrasonic waves are utilized for pretreatment, so that the penetrating power of cell membranes is increased, and therefore, active substances in cells can easily permeate, and the purity and the quality of various active components in the finally extracted rhizoma polygonati are improved.

The invention discloses an axial ultrasonic transducer, which relates to the field of transducers and comprises a fixing assembly, a supporting assembly, a connecting assembly and a sealing assembly, the fixing assembly comprises a cover body, a mounting hole, a bolt, an oil cavity and sealing oil; the section of the cover body is a rectangular body, a supporting assembly is arranged at the bottom of the cover body, a round mounting hole is formed in the top of the cover body, a threaded structure is arranged on the upper half section of the mounting hole, the lower half section of the mounting hole is a smooth cylindrical surface, a bolt is arranged in the mounting hole, the bolt is a boss-shaped body, and the supporting assembly is arranged at the bottom of the cover body. An oil cavity is formed in the bottom of the cover body, and a connecting assembly is arranged on the bottom wall of the oil cavity. The sealing assembly is optimized and improved, the maintenance cost of equipment is reduced, the sealing effect of the equipment is improved, and all the components act synergistically in the using process so that better pre-tightening force can be achieved.

The utility model discloses a tinning device of a tinning machine for metal wire production, which is characterized in that storage boxes are arranged on two sides of a tinning box, the upper surfaces of the storage boxes are fixedly connected with output channels, and the output channels are fixedly connected with the tinning box; a first conveying pipeline is fixedly connected to the upper surface of the first support, a clean water cleaning box is fixedly connected to the side surface of the first conveying pipeline, a cleaning liquid storage box is arranged in the clean water cleaning box, and an impurity cleaning box is fixedly connected to the side surface of the first support; the upper surface of the second support is fixedly connected with a second conveying pipeline, the side surface of the second conveying pipeline is fixedly connected with a drying box, and the side surface of the second support is fixedly connected with a storage box. Through the structure, the tin plating work is stable, the surface is treated according to solutions with different acid and alkali values, residual acid and alkali liquor is removed through clear water, and the tin plating process is prevented from being interfered by the acid and alkali liquor; the tinning device has the advantages that safe, stable and comprehensive tinning can be achieved, metal wires are convenient to convey, and interference of external air to the metal wires after tinning is avoided.

The invention relates to the technical field of fuel cells, and discloses a fuel cell single-low control method and system, computer equipment and a storage medium, and the method comprises the following steps: obtaining voltages of all cells in a stack, and determining whether the cells in the stack are in a single-low state according to an average value of the voltages of all the cells; if the batteries are in the single low state, the nitrogen concentration in the electric pile and the wetting uniformity of all the batteries are obtained respectively, and a first control mode and / or a second control mode are / is selected to adjust the batteries in the electric pile; wherein the first control mode is used for adjusting the nitrogen concentration in the galvanic pile based on the exhaust frequency; according to the method and the device, the reasons of single low occurrence of the battery can be effectively identified, and the proper control mode is selected according to different single low reasons to accurately regulate and control the battery, so that the battery can be quickly separated from the single low state, and the battery wettability uniformity in the electric pile is improved. And the control method can be suitable for a complex and changeable environment.

This utility model discloses an anti-corrosion treatment device for aluminum car logo surfaces, including an operating groove. A protective cover is installed at the top of the operating groove, and a rectangular groove is formed at the center of the top of the protective cover. A support plate is inserted inside the rectangular groove, and a top plate is fixedly installed at the top of the support plate. A bottom plate is fixedly installed at the bottom of the support plate, and a lower pin is fixedly installed at the center of the top of the bottom plate. This utility model effectively seals the spraying area by adding a protective cover structure to the top of the operating groove, preventing the escape of toxic gases and significantly reducing the harm to the health of operators. It also improves the working environment, meeting safety and environmental protection requirements. Furthermore, this protective cover structure can maintain a stable internal environment during the spraying process, avoiding interference from external dust and moisture, ensuring coating uniformity and adhesion, and improving the quality consistency and reliability of the anti-corrosion treatment of aluminum car logo surfaces.

The utility model provides a self-service vending machine convenient to identify. The self-service vending machine convenient to identify comprises a vending machine body; the sealing door is hinged to the vending machine body; the goods shelf plates are fixedly installed on the vending machine body, and the number of the goods shelf plates is multiple; the number of the partition plates is multiple, and the multiple partition plates are fixedly connected with the multiple goods shelf plates correspondingly; the partition plates are arranged on the goods shelf plate, the gravity sensors are arranged on the goods shelf plate, the number of the gravity sensors is multiple, and the gravity sensors and the partition plates are arranged correspondingly; the goods shelf plates are fixedly installed on the vending machine body, the supporting plates are fixedly installed on the vending machine body, and the multiple supporting plates are fixedly connected with the multiple goods shelf plates respectively. The self-service vending machine convenient to identify has the advantages of being capable of accurately identifying goods taken out by customers and convenient to operate.

This application provides a gas path system, relating to the fields of gas path technology, ion migration technology, substance detection technology, or other technical fields. The gas path system includes: a sampling gas path, comprising a sampling port, an exhaust port, and a cap-shaped component capable of covering the sampling port and exhaust port; and an internal circulation gas path, connected to the sampling gas path via a selectively permeable membrane. Depending on the state of the cap-shaped component, the gas path system is configured to have corresponding operating modes, including at least one of the following: when the cap-shaped component is in the closed state, the cap-shaped component is configured to cover the sampling port and exhaust port to isolate external gas, and the sampling gas path self-circulates without sampling; when the cap-shaped component is in the open state, sample gas can enter the sampling gas path from the sampling port, wherein at least a portion of the sample gas passes through the selectively permeable membrane into the internal circulation gas path, and the remaining portion is discharged through the exhaust port. This application also provides an ion migration device and a detection method.

This utility model relates to the field of capacitor packaging shell technology, specifically a packaging shell structure for an aluminum electrolytic capacitor. The utility model includes a shell body and a sealing cap. The open end of the shell body is provided with an external thread, and the inner wall of the sealing cap is provided with an internal thread. The external thread of the shell body and the internal thread of the sealing cap are adapted to each other. The sealing cap is screwed onto the open end of the shell body through the cooperation of its internal thread and the external thread of the shell body. The adaptation and screwing of the external thread of the shell body and the internal thread of the sealing cap, along with the cooperation between the sealing ring, effectively prevents external moisture, dust, corrosive gases, etc., from entering the interior of the aluminum electrolytic capacitor, maintaining a stable internal environment, ensuring stable capacitor electrical performance, and extending service life. Furthermore, the screw into the limiting groove by the screw ensures precise positioning of the sealing cap, preventing it from rotating or loosening due to vibration or external force during use, further ensuring the overall structural stability.

This utility model discloses an aluminum electrolytic capacitor, relating to the technical field of aluminum electrolytic capacitors. It includes: a housing, with a core package fixedly installed on the inner wall of the housing, a guide pin fixedly installed on the top of the core package, and a top sealing plate sealed on the top of the housing; an exhaust valve, including a housing, with a vent plate fixedly installed on the top of the housing, and a blocking plate slidably connected to the inner wall of the housing; and a buffer assembly, installed between the inner wall of the housing and the outer wall of the core package, the buffer assembly including a sleeve, a sliding rod, and a damping block. This utility model effectively absorbs external vibration and impact energy through the synergistic effect of the sleeve, sliding rod, spring, and damping block in the buffer assembly, preventing damage to the internal structure of the core package due to external forces. Simultaneously, the automatic pressure relief and dustproof design of the exhaust valve promptly discharges internal gas and prevents impurities from entering, maintaining internal pressure and environmental stability, significantly improving the capacitor's service life and operational stability.

The invention discloses a rana japonica oil food capable of nourishing yin and moistening lung and a preparation method of the rana japonica oil food. The rana japonica oil food comprises radix asparagi, rana japonica oil, red ginseng, maltodextrin, a loquat leaf extract, a tussilago farfara extract, adenophora stricta and radix stemonae. The preparation method of the oviductus ranae food comprises the following steps: respectively carrying out superfine grinding on the oviductus ranae freeze-dried powder, the radix asparagi, the red ginseng, the maltodextrin, the loquat leaf extract, the tussilago farfara extract, the adenophora stricta and the radix stemonae, and uniformly mixing in parts by mass to obtain a compound; the compound is used as powder to be packaged into a finished product, or the compound is prepared into tablets, ointment, pills or capsules to be packaged into a finished product. The oviductus ranae food is rich in various nutritional ingredients, has the effects of nourishing yin, moisturizing the lung, tonifying qi and strengthening the middle warmer, and can greatly improve the immunity and resistance of a user and improve the symptom of low immunity caused by lung weakness.

This application relates to a 3D printing work box, characterized by comprising a work box body (100) and a first opening and closing mechanism (200). A first sand leakage hole (110) is provided on the side wall of the work box body (100). The first opening and closing mechanism (200) is movably disposed on the outer side wall of the work box body (100). In a first state, the first opening and closing mechanism (200) blocks the first sand leakage hole (110). In a second state, the first opening and closing mechanism (200) is moved away from the first sand leakage hole (110). This application also discloses a 3D printing device. This solution can solve the problems of current binder jet 3D printing equipment where the work box relies on a sand cleaning station for sand mold printing, resulting in low sand cleaning efficiency, large occupation of production space, and potential impact on the integrity of the sand core product due to sand leakage.

The invention discloses an electricity utilization safety and electricity larceny prevention identification system based on AR and a knowledge graph, and the system comprises a monitoring collection module, a data processing module, an AR module, an analysis processing module, a knowledge graph module, and an uploading processing module. The data processing module calculates the electric quantity of the monitoring and collecting module, the analysis fixing instrument calculates the current magnitude difference between the current recording electric meter box and the flow recorder, then the data of the current transformer and the current magnitude difference are divided and compared, and the electric quantity and the loss of the current recording electric meter box are obtained. The problems that in the prior art, the wiring end of an electric energy meter loosens after being used for a long time, and electricity utilization safety is affected are effectively solved, direct electricity stealing from the position of the electric energy meter is avoided, meanwhile, front and back end crossing electricity stealing is avoided, stable monitoring processing is achieved, the protection effect of equipment on electricity stealing is improved, and the background can know the state of the electric energy meter and the power supply state in time.