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A special cultivation device for selenium-enriched sprouts
PendingCN122074386Aincrease nutritionEnsure distribution of nutrients for growthAgriculture gas emission reductionCultivating equipmentsRoot growthHydroponics
A special cultivation device for selenium-enriched sprouts, belonging to the technical field of soilless cultivation devices, addresses the problems of excessive roots extending beyond the basket during hydroponics, which can easily disperse nutrients and impair water circulation, affecting the normal growth of seedlings inside the basket. Furthermore, roots can clog the gaps in the seedling tubes, also hindering seedling growth and development. The invention includes a main frame and a water supply tank fixed in the middle of the main frame's surface. Several sets of hydroponic tubes are equidistantly and parallelly fixed above the main frame. This invention can cut off excessively grown roots extending beyond the seedling basket, keeping the main growing roots inside the basket. This ensures the distribution of nutrients for sprout growth and prevents excessive root growth from obstructing the effective flow of water within the hydroponic tubes. It also prevents outward-extending roots from entangled with the roots of adjacent seedling baskets, thus avoiding damage to the sprouts during subsequent trimming.
Owner:JINHUAKUI HEALTH SCI & TECH RES INST (BEIJING) CO LTD
Motor drive device and electric vehicle system
ActiveCN116848776BReduced driving efficiencyavoid circulationSpeed controllerElectronic commutation motor controlElectric machineTerminal voltage
Provided is a motor drive device that drives a motor by controlling torque generated by the motor based on a d-axis current and a q-axis current, the motor drive device including: a d-axis current command generation section that calculates a first d-axis current command; a current command correction section that generates a positive correction amount that is added to the first d-axis current command when a terminal voltage of the motor is equal to or greater than a prescribed value; and a voltage feedback control section that generates a negative correction amount that is added to the first d-axis current command to prevent the terminal voltage of the motor from exceeding a prescribed maximum output voltage, and controls the torque based on a second d-axis current command obtained by adding the positive correction amount and the negative correction amount to the first d-axis current command, and a q-axis current command.
Owner:ASTEMO LTD
A multi-energy storage converter coordinated control method and system
PendingCN122268017ASolve the internal circulationFix Response LagBatteries circuit arrangementsSingle network parallel feeding arrangementsPower control algorithmControl engineering
The application provides a multi-energy storage converter coordination control method and system. The method comprises the following steps: synchronously collecting power grid parameters of a PCC point through a unified collection module arranged at the PCC point; receiving and processing the power grid parameters to obtain standardized data for a power control algorithm; generating a global regulation instruction based on the standardized data and in combination with acquired power regulation information, wherein the power regulation information at least comprises operating state information of each PCS, and the operating state information of each PCS at least comprises one of an SOC state corresponding to each PCS, a current output power, an adjustable power margin and a health state; and synchronously issuing the global regulation instruction to each PCS through a real-time communication network module, so that each PCS performs power output according to the same instruction source. The method effectively eliminates regulation deviation and internal circulation caused by independent response of multiple PCSs, improves response synchronism and regulation accuracy of the energy storage system to the power grid, and realizes optimal configuration of energy storage resources.
Owner:TOKSUN JINGNENG HYDROGEN NEW ENERGY CO LTD
Fire separation structure for public places
ActiveCN224413484UGuaranteed fire performanceDoes not affect openingPublic placeStructural engineering
The utility model relates to a kind of fireproof partition structure for public place, including door frame;Inspection track;Control mechanism, the control mechanism includes emission guide block, receiving guide block and controller, receiving guide block is electrically connected with controller, receiving guide block is used to receive emission guide block signal;Two drive mechanisms, two the drive mechanism is set on door frame, and drive mechanism includes multiple connecting pieces;Barrier mechanism, the barrier mechanism includes two door panels, two door panels are respectively fixed with the connecting piece of two drive mechanisms, two door panels are evenly provided with sealing assembly, and sealing assembly includes the sealing element in contact with inspection track, for filling the gap of inspection track.The fireproof partition structure for public place, by the setting of door panel and sealing assembly, after door panel is folded, can be attached with inspection track, and the opening of door panel is not affected, to avoid that the structure whole is in the wall body two sides air circulation, guarantee structure whole fireproof effect.
Owner:HUBEI RENREN SECURITY TECHNOLOGY CO LTD
Horizontal sliding window linkage structure and horizontal sliding window
Owner:SMART HOME BEIJING CONSTR TECH CO LTD
A delivery mechanism and seal pin weld detection system
The application provides a conveying mechanism and a sealed nail welding machine detection system, comprising: a first conveying line and a second conveying line for conveying products; a helium detection tray is connected with the first conveying line and the second conveying line; wherein the helium detection tray comprises a tray body and a helium detection conveying assembly, and a connecting conveying assembly is arranged on the tray body, so that the products can be conveyed from the first conveying line to the tray body and from the tray body to the second conveying line. In this way, welding and helium detection are integrated, the product flow between welding and helium detection is avoided, a complex transfer structure such as a mechanical hand is not needed, product processing and detection can be completed during conveying, the structure is simple, and work efficiency is improved.
Owner:SANY TECH EQUIP CO LTD
Detachable filter assembly for cross-linked sodium hyaluronate production
This utility model discloses a detachable filter assembly for the generation of cross-linked sodium hyaluronate, relating to the field of filtration technology. It includes a filter box with receiving boxes fixedly connected to both sides. Several receiving frames are fixedly connected inside the filter box, and filter plates are movably connected inside each receiving frame. A separating and sealing assembly is provided inside the filter box and the receiving boxes to disconnect the communication between the receiving frames. The separating and sealing assembly includes several sealing cloths. In the initial state, the sealing cloths are positioned at the bends of the timing belt, preventing them from obstructing the receiving frames. When the sealing cloths move directly above and below the receiving frames, four sealing cloths simultaneously obstruct three receiving frames, thus preventing material flow between the filter plates. This facilitates filter plate replacement without causing material leakage from the filter box, ensuring safe filter plate replacement.
Owner:SHANGHAI JINGFENG PHARMA
Embryo transfer tube
This utility model relates to the field of assisted reproductive technology, specifically to an embryo transfer tube, comprising a first tube segment and a second tube segment connected to each other. The inner diameter of the second tube segment is larger than that of the first tube segment. A piece of absorbent cotton is placed inside the second tube segment. An annular limiting seat is provided on the inner wall of the second tube segment at the end away from the first tube segment, and the inner diameter of the annular limiting seat is smaller than that of the second tube segment. By setting an annular limiting seat at the end of the larger-diameter second tube segment, this utility model can reduce the air intake cross-sectional area, increase airflow resistance, and make the negative pressure generated by the suction bulb more gradual. This facilitates the operator's precise control of the embryo aspiration position, thereby reducing the risk of embryos being accidentally aspirated into the second tube segment. Simultaneously, the absorbent cotton placed inside the second tube segment further intercepts any embryos and fluids that may be accidentally aspirated.
Owner:SICHUAN ACADEMY OF MEDICAL SCI SICHUAN PROVINCIAL PEOPLES HOSPITAL
High-strength steel column base connection structure
The utility model relates to the technical field of building construction discloses a high -strength steel column column foot connecting structure, including steel column body, a plurality of rotating cap, sealing box, first sealing plate and second sealing plate, the steel column body outer wall lower end face fixedly set up trapezoidal stiffening rib, trapezoidal stiffening rib outer wall front and rear end and outer wall both sides all are set up first hole, a plurality of rotating cap upper end face all are fixedly set up arrow, a plurality of rotating cap lower end face all are set up hexagon hole, sealing box inner bottom surface sets up a plurality of second hole, first sealing plate and second sealing plate upper end face all set up a plurality of third hole, first sealing plate and second sealing plate lower end face all are fixedly set up second sealing pad, in the utility model, the device can effectively avoid nut and anchor bolt oxidation rust, still can more directly observe whether the nut is loose.
Owner:CHENGDU LINGFENG ARCHITECTURAL DESIGN CO LTD
Multi-power integrated electrical interlocking device
ActiveCN224289309Uensure safetyEnsure anti-collision switchingAc network circuit arrangementsControl theorySource system
This invention provides a multi-power integrated electrical interlocking device, relating to the field of low-voltage electrical technology. It includes: multiple signal conversion modules and an interlocking connection module. The interlocking connection module includes multiple interlocking connection units corresponding to each signal conversion module. Each interlocking connection unit includes an interlocking wiring network. Each signal conversion module includes one input terminal and multiple output terminals. The input terminal is connected to the status node of a circuit breaker in the multi-power system, and the multiple output terminals are connected to the corresponding interlocking connection unit. Each signal conversion module converts the input signal of the target circuit breaker's status node into multiple sets of dry contact signals. The interlocking wiring network is connected based on the interlocking logic of the corresponding target circuit breaker. The interlocking connection unit performs interlocking control on the corresponding target circuit breaker through the interlocking wiring network and the multiple sets of dry contact signals. This invention achieves forced interlocking between multiple power sources through hardware-level interlocking design without the need for external interlocking lines.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1