11results about How to "Reduce cost pressure" patented technology

The application provides a pickling unit automatic speed control method and system based on multi-factor constraints, and relates to the technical field of cold-rolled strip steel production. In view of the defects that the existing control relies on manual operation or primary automation and is difficult to cope with multiple constraints and instantaneous working conditions, the method comprises the following steps: constructing a multi-factor constraint model covering process, equipment, logistics, acid liquid and instantaneous working conditions; collecting corresponding data in real time; dynamically calculating a global optimal speed setting value through multi-layer decision logic, calculating a basic speed first and then superimposing an instantaneous working condition constraint, and directly triggering emergency disposal through high-priority alarm; issuing an instruction for execution and closed-loop feedback, and combining machine learning for self-learning optimization. The application realizes automatic intelligent control of the unit speed, guarantees quality and equipment safety, improves production efficiency and continuity, and reduces energy consumption cost.

This utility model discloses a fixed support structure for water conservancy pipelines, relating to the field of pipeline support technology. It includes two support brackets, with a pipeline clamping assembly fixedly installed at the upper end of each bracket. The pipeline clamping assembly consists of an arc-shaped metal clamping plate, an arc-shaped detachable rubber pad, an insert base rod, a fixing screw, and a rotating handle. By setting the pipeline clamping assembly on the support bracket, and rotating the fixing screw by rotating the handle, the installation and removal of one or more arc-shaped detachable rubber pads can be completed. Since the multiple arc-shaped detachable rubber pads have different curvatures, the clamping range of the pipeline clamping assembly can be flexibly adjusted by increasing or decreasing their number and replacing them with rubber pads of different curvatures, thereby adapting to water conservancy pipelines of different diameters and effectively solving the problem of poor adaptability of traditional fixed support structures.

This utility model discloses a sludge reduction device based on porous packing, belonging to the field of sludge reduction technology. It includes an inlet pipe, a reduction mechanism fixedly connected to its outer surface, a filter assembly movably connected to the inner cavity of the inlet pipe, and an outlet pipe fixedly connected inside the reduction mechanism. A valve is installed on the outer surface of the outlet pipe. Through two aerators and a stirring assembly, air can be supplied to the reaction tank to form a stable aerobic environment, providing sufficient oxygen for the aerobic metabolism of microorganisms and accelerating the decomposition of organic matter in the sludge. Simultaneously, the water flow disturbance generated by aeration and the stirring action of the stirring assembly promote full contact between the wastewater and the biofilm on the porous packing, significantly improving mass transfer efficiency. In this environment, microorganisms can more fully utilize the organic matter in the wastewater, accelerating their own metabolism and sludge decomposition, thus improving sludge reduction efficiency, effectively reducing subsequent sludge treatment costs and environmental pressure, and enhancing the practicality of the device.

The utility model provides a photovoltaic module with water repellent flow guide structure, including main purlin, the upper end surface of main purlin is fixed with M type support steel frame through fixed bolt, install a plurality of equidistance distribution's horizontal connecting support on M type support steel frame, install photovoltaic board between adjacent horizontal connecting support, and the interval of adjacent horizontal connecting support can be adjusted according to different size photovoltaic board, install vertical connecting support between adjacent horizontal connecting support, vertical connecting support can move along the length direction of horizontal connecting support, vertical connecting support includes the clamping groove for clamping photovoltaic board. Realize horizontal connecting support and vertical connecting support present movable setting, adapt to different size photovoltaic board, the setting of the lower opening of M type support steel frame makes it have roof drainage function, improves the overall durability and applicability.

This application provides a conductive paste that, by introducing inexpensive metals such as nickel and aluminum into the paste, increases the proportion of conductive metals other than silver to a maximum of 50%, significantly reducing the amount of precious silver used, effectively controlling material costs, and alleviating cost pressures caused by soaring silver prices. By controlling the particle size distribution of conductive metals other than silver (D50 is 2-9μm, D100 < 30μm), the paste is ensured to have good permeability and formability during screen printing, without screen clogging or broken grid lines, forming complete and uniform fine grid lines, laying the foundation for high efficiency.

This utility model provides a steel frame formwork structure and an L-shaped wall formwork system suitable for L-shaped wall formwork. Multiple frame structures are spliced ​​together in the vertical and horizontal directions by clamping structures. Perpendicular frame structures are fixed by vertical connecting structures. Frame structures located at the inner corner of the L-shaped wall formwork are spliced ​​together by corner structures and fixed to the inner corner frame structures by clamping structures. This modular splicing method replaces the complex assembly process of existing steel frame wooden formwork construction that requires additional connectors. It allows construction personnel to flexibly adjust the size and shape of the wall formwork according to actual project needs without redesigning the entire mold set. This simplifies the connection structure, reduces the weight of the overall formwork structure, eliminates the need for complex on-site assembly operations, effectively shortens construction time, and improves construction efficiency.

The utility model discloses a door frame section bar and swing door applying it, and the door frame section bar includes section bar body, first groove type opening structure and second groove type opening structure, and the first groove type opening structure and the second groove type opening structure are diagonally arranged at the both ends of the section bar body. The swing door applies the door frame section bar. The utility model provides a door frame section bar of brand -new structure, and the door frame section bar is provided with the first groove type opening structure and the first groove type opening structure two special groove type opening structures of diagonal line distribution on the section bar body, and then can assemble different accessories and board materials when installing to satisfy different installation demand, and the door frame section bar of the utility model can be used as outside flat outside open door, inside flat inside open door, outside flat inside open door, inside flat outside open door, can also be used as invisible door and double -deck swing door with screen door, and the applicability is strong, and the manufacturer only needs to manufacture a door frame section bar, greatly reduces manufacturing cost and inventory pressure.

The utility model discloses a trolley support suitable for variable cross section tunnel relates to trolley support technical field, including portal main part, telescopic spare is set up on portal main part, and it includes: the outer tube is axially horizontal and is arranged at the top of portal main part, and both ends are connected with outside, the threaded rod is coaxial and is arranged in the outer tube, and the annular gap is left between the outer wall of threaded rod and the inner wall of outer tube, the threaded cylinder is nested in the annular gap, and its inner wall is in threaded engagement with threaded rod. The utility model with the axial movement of threaded cylinder relative to outer tube in telescopic spare, can accurate regulation trolley support node's geometric size. Since the outer tube and threaded cylinder initial state both ends are flush, and the length is same, through rotating knob, can make telescopic output end's length of protruding according to actual demand change, thereby let same trolley support can match different size's tunnel section, need not for each kind of section alone custom-made trolley support, has greatly promoted the versatility of equipment.

The utility model relates to the technical field of barrier avoidance device, concretely is a portable barrier avoidance device for assisting blind people to travel, including the casing, the second outer wall of casing is provided with first ranging module, the inclined surface of casing is provided with second ranging module, is provided with host computer and vibration module in the casing. The utility model discloses, aiming at the problem that the privacy of blind user is neglected because of voice broadcast for the prior art product, the device provides the feedback mode of non - voice through vibration module, avoids causing the attention of others or the psychological discomfort of user, improves the use experience while protecting the privacy, overcomes the voice failure problem of prior art product in noisy environment, even under complex scene, user can also know that the barrier appears in the front or the front lower side through vibration prompt, ensures the product stability and practicality. Still with braille button, automatic adjusting function is combined, reduces the learning cost and psychological stress, improves the acceptance of user to product.

This invention discloses an integrated wastewater treatment device and method for enrichment and in-situ digestion. The method operates cyclically within a reactor, with each cycle comprising: an enrichment and adsorption stage, in which organic wastewater is introduced into the reactor; by controlling the influent and internal circulation, a hydraulic upflow velocity is created within the reactor, causing the anaerobic granular sludge bed to expand; this hydraulic condition induces the granular sludge to secrete extracellular polymers and utilizes the anaerobic granular sludge and its extracellular polymers to adsorb and enrich dissolved organic matter in the influent; and an in-situ digestion and regeneration stage, in which the influent is stopped, and under continuous internal circulation and anaerobic conditions, the inherent methanogenic bacteria within the granular sludge convert organic matter into methane in situ. This biodegradation process simultaneously regenerates the adsorption sites of the granular sludge, preparing for the next cycle. This invention couples the bio-adsorption enrichment and anaerobic digestion processes within the same reaction space through time-series switching.

This invention relates to the field of power supply technology, specifically disclosing an inverter power supply control circuit, control method, and inverter welding machine with dual voltage conversion and lockout protection functions. The control circuit includes an input rectifier and filter circuit, an inverter circuit, an inverter control circuit, and an AC input conversion and lockout protection control circuit. The conversion and lockout circuit includes a main control relay connected to the output terminal of the AC input circuit, a first optocoupler whose operating state is determined according to the magnitude of the total input power voltage, and a voltage multiplier relay connected in series with a third field-effect transistor at its input terminal. This invention, through the design of the AC input conversion and lockout protection control circuit, can switch the circuit's operating state according to the magnitude of the input mains voltage, better protecting circuit components and preventing damage to the inverter and aluminum electrolytic capacitors.