11results about How to "Guarantee controllability" patented technology

The invention relates to automatic profile steel straightening equipment which comprises an input device, an operation table, an output device and a first displacement sensor used for detecting the position of profile steel, and an equipment controller used for controlling the input device and the output device and a straightening mechanism used for straightening the profile steel are installed on the operation table. The straightening mechanism comprises a hydraulic cylinder, at least two main supporting plates, a second displacement sensor used for detecting the extension distance of the hydraulic cylinder and a third displacement sensor used for detecting the pushing deformation amount of the profile steel, and the first displacement sensor, the second displacement sensor and the third displacement sensor are all electrically connected with the equipment controller; the profile steel is located between the hydraulic cylinder and the main supporting plate. Multiple devices can be controlled by a single person, operation is easy and convenient, the labor intensity and the labor cost are reduced, and the profile steel straightening efficiency is improved; the production controllability and the personnel safety are guaranteed, the automatic control and precise positioning technology is applied, damage in the profile steel transporting and carrying process is reduced, and the product quality is improved.

This invention provides a residual-temperature assisted multi-heat-source synergistic modulation welding device and method, relating to the fields of laser welding and friction stir welding, aiming to solve the problems of easy forming defects and performance degradation in welding aluminum-lithium alloys. The device outputs a composite heat source through a laser-arc composite heat source system to melt the welding wire and stabilize the molten pool with deep penetration on the front side of the workpiece; a motion system controls the movement of the friction stir heating system; a residual-temperature-airflow synergistic auxiliary temperature control system dynamically adjusts the temperature of the solid phase region of the molten pool; a monitoring and sensing system collects physical field modal data in real time and uploads it to the control system; a flexible tooling system is used to clamp the workpiece with variable curvature; the friction stir heating system applies dynamic shearing and mechanical upsetting forces in the residual high-temperature region on the back side, effectively improving defects such as back-side collapse and burn-through in the weld of the workpiece with variable curvature. The residual-temperature assisted multi-heat-source synergistic modulation welding method is applied to the residual-temperature assisted multi-heat-source synergistic modulation welding device.

The invention discloses a hollow cathode assembly, which comprises an emitter, a top pore plate, a heater, a gas-guide tube, an auxiliary electrode and a contact electrode, the touch pole is of a cylindrical structure, one end of the touch pole is combined and fixed with a plate body, the center of the plate body is provided with a through hole, and the emitter, the top hole plate, the heater, the auxiliary pole and the gas-guide tube are coaxially arranged with the touch pole; the gas-guide tube is of a hollow tube body structure and is arranged in the touch holding electrode in a penetrating manner; the top hole plate is combined and fixed at one end, close to the plate body, of the gas-guide tube; a small hole is formed in the center of the top hole plate; the heater wraps the peripheral surface of the gas guide pipe; the emitter is located in the air guide pipe and abuts against the top hole plate, a cavity penetrating through the emitter is formed in the center of the emitter, and the cavity is communicated with the small hole; the auxiliary electrode penetrates through the gas guide tube, one end of the auxiliary electrode is located in the cavity, the cavity is of a conical structure, the inner diameter of an opening in the side close to the top pore plate is smaller than that of an opening in the side away from the top pore plate, discharge current oscillation can be reduced, and the stability of the hollow cathode assembly is improved.

The application discloses an anti-vibration buffer flow guide structure of a capacitance diaphragm vacuum gauge, and belongs to the technical field of vacuum measurement. The anti-vibration buffer flow guide structure comprises an outer shell, an anti-vibration isolation structure arranged between a diaphragm and the outer shell, and a buffer layer composed of an elastic material. A buffer type gas flow guide structure is arranged on a gas flow path between a gas inlet and the diaphragm, and the buffer type gas flow guide structure comprises multiple layers of flow guide plates arranged in sequence along a gas flow direction, and each layer of flow guide plate is arranged at an inclined angle with the gas flow direction. The buffer layer composed of the elastic material cuts off a rigid transmission path of vibration from the outer shell to the diaphragm, and effectively filters wideband mechanical noise. Meanwhile, multiple layers of flow guide plates with different inclined angles are arranged on the flow path between the gas inlet and the diaphragm. Under the joint action, false deformation signals caused by environmental vibration and gas pulsation are greatly reduced, so that the reading of the vacuum gauge under real working conditions is closer to the static pressure true value in the cavity.

This invention relates to the field of power transmission tower maintenance safety technology, and discloses a high-altitude fall protection device for power transmission towers, comprising: a fall protection load-bearing component and an inclined self-locking component. The fall protection load-bearing component includes a load-bearing base, two movable load-bearing members, and an elastic buffer. The load-bearing base has sliding engagement parts at both ends, and the two movable load-bearing members slide with the load-bearing base, allowing them to move closer or further apart. These two components are used to connect the fall protection suit to the power transmission tower. The elastic buffer is installed between the two movable load-bearing members and applies opposing driving forces. The inclined self-locking component includes a load-bearing part, multiple first inclined structures, second inclined structures, and an elastic pre-tightening member. The load-bearing part slides synchronously with the movable load-bearing members. The first inclined structures are located on the load-bearing part, and the second inclined structures have forward and reverse installation parts for alternating forward and reverse installation. The elastic pre-tightening member applies a pre-tightening force; the forward-installed second inclined structures can wedge tightly with the first inclined structures for self-locking, while the reverse-installed ones cannot form a self-locking mechanism. This improves the controllability of the fall braking distance.

The application relates to the technical field of waste heat recovery of pneumatic ash conveying systems, and discloses an energy-saving control device for a power plant pneumatic ash conveying system. In the application, the device housing is provided with a motor bin on the upper surface, a bottom fixing ring is fixedly installed on the upper surface of the device housing, a gas conveying pipe is arranged in the bottom fixing ring, a circular baffle is rotatably arranged in the bottom fixing ring, a rotating rod is welded to one end of the circular baffle, and a motor is fixedly connected to the rear end of the rotating rod. In the power plant pneumatic ash conveying system, the intermittent airflow of the gas conveying pipe, i.e. periodic start-stop or airflow adjustment, can optimize the system performance and bring multiple economic benefits and technical advantages, effectively reduce local wear and tear, avoid long-term high-pressure impact on the pipeline, reduce the probability of weld cracking, avoid pipeline blockage or imbalance of ash-gas ratio caused by overload, reduce invalid airflow emission through intermittent conveying, reduce the load of the end dust removal equipment, and thus reduce the risk of dust escape.

The invention relates to a business orchestration method and device, computer equipment, a readable storage medium and a program product, relates to the technical field of business processes, and can improve the processing efficiency of abnormal conditions in business orchestration. The method comprises the following steps: determining a transaction node in a service connection flow; setting an abnormal rollback flow for the transaction node through the service connection flow; the operation mode of the abnormal rollback process comprises a preset rollback mode and a preset abnormal ending mode; under the condition that the transaction node is abnormal, entering an abnormal rollback process, and performing rollback operation according to a preset rollback mode; and when the rollback operation is completed, ending the abnormal rollback process according to a preset abnormal ending mode.

The invention discloses a method for detecting related substances of penehyclidine hydrochloride injection by high performance liquid chromatography. The method comprises the following steps: detecting a test solution by high performance liquid chromatography, adopting a C18 reverse phase chromatographic column, taking a mixed solution of dipotassium hydrogen phosphate solution: acetonitrile in a volume ratio of 70:30-90:10 as mobile phase A, wherein the pH value of the dipotassium hydrogen phosphate solution is 4.0-5.5 and the solution contains 0.5-1.0 vol% of triethylamine, taking a mixed solution of water: acetonitrile in a volume ratio of 10:90-30:70 as mobile phase B for elution, the temperature of the chromatographic column is 30-40 DEG C, the temperature of the injection plate is 4-8 DEG C, the detection wavelength is 200-270 nm, the flow rate is 0.8-1.5 ml / min, penehyclidine hydrochloride injection and six impurities thereof can be detected by one loading, the separation degree between peaks is guaranteed, and the quality control of penehyclidine hydrochloride injection is facilitated.

The invention relates to the technical field of profile steel machining equipment, in particular to profile steel automatic feeding and discharging equipment which comprises a profile steel input mechanism, a carrying mechanism, a roller way conveying mechanism and a profile steel output mechanism, the roller way conveying mechanism is located above the profile steel input mechanism, and the carrying mechanism is located on the same side of the profile steel input mechanism and the roller way conveying mechanism. The carrying mechanism is used for carrying profile steel from the profile steel input mechanism to the roller way conveying mechanism, and the profile steel output mechanism is located above the profile steel input mechanism and connected with the roller way conveying mechanism. According to the equipment, the purpose of controlling a plurality of equipment by one person is achieved, the labor intensity is reduced, the labor cost is also reduced, and the controllability of the production process and the personal safety of operators are guaranteed; the equipment is simple and convenient to operate, an automatic control technology and a precise positioning technology are applied, the damage condition caused in the production, transportation and carrying process of the profile steel is reduced, and therefore the product quality is improved, and the equipment is suitable for a large-scale and high-efficiency profile steel machining production line.

The invention belongs to the technical field of pyrotechnic compounds, and particularly relates to a red pyrotechnic compound capable of realizing electric control combustion and a preparation method thereof. The red pyrotechnic compound comprises the following components in percentage by mass: 65-70% of hydroxylamine nitrate solution; 2-4% of ammonium nitrate; 10 to 12 percent of polyvinyl alcohol; 1-2% of borax; 15-18% of a strontium-based flame colorant; and 2 to 3 percent of pentaamino tetrazole. According to the pyrotechnic compound, ionic liquid hydroxylamine nitrate is adopted as a main oxidizing agent, under the action of electric energy, the ionic oxidizing agent is electrolyzed, ion migration occurs, the controllability of the pyrotechnic compound is guaranteed through the electrolytic reaction, controllable burning-out and adjustable burning speed can be achieved under the action of external electric energy, and higher safety and controllability are achieved; combustion products of the pyrotechnic compound are free of pollution, and the requirements of environmental protection on pyrotechnic products are met.