49results about How to "Improve the safe operation factor" patented technology

The invention relates to a method for manufacturing a high-strength steel plate used in low-temperature environment. The steel plate comprises the following chemical components in percentage by weight: 0.06-0.10 percent of C, 0.10-0.40 percent of Si, 0.9-1.40 percent of Mn, 0.010-0.030 percent of Ti, 0.01-0.06 percent of V, 0.0-0.40 percent of Cr, 0.10-0.30 percent of Ni, 0.10-0.30 percent of Mo and the balance of Fe; the equivalent weight of the component carbon is required to be smaller than or equal to 0.45 percent, and the thickness specification of the produced steel plate ranges from 10mm to 60mm. The performance control is carried out by adopting a rolling and cooling control and heat treatment technology; the method has the advantage that the comprehensive mechanical performance of the produced steel plate is greatly improved than that of a steel plate in the same grade; the thickness is between 10mm and 60mm, the yield strength can stably reach not smaller than 490MPa, the tensile strength can stably reach 60kg grade, a low-temperature impact power average value at minus 60 DEG C stably reaches not smaller than 100J, and the high-performance requirement on the steel plate in the low-temperature environment of minus 60 DEG C can be fully met.

The invention belongs to the technical field of electric power, and especially relates to a low-voltage cable intermediate joint cold contraction technology, which can remedy defects such as coarse original material, poor insulation performance and sealing performance, weak tolerance mechanical strength, and easily getting heated and burnt of a 0.4kV low-voltage cable intermediate joint and significantly improve equipment safety running coefficients. The low-voltage cable intermediate joint cold contraction technology fundamentally helps to reduce fault probability of the 0.4kV low-voltage cable intermediate joint. The use of the new technology and the material provide effective technical support for personal safety and equipment safety, and at the same time helps electric power enterprises to save a large amount of maintenance funds, not only promotes increase of profits of the electric power enterprises but also achieves huge social benefit due to stable and continuous power supply.

The invention relates to a combined type sensor, which belongs to the field of electric power measurements. The combined type sensor comprises a shell, and is characterized in that a V/I/v voltage sampling loop and an I/i current sampling loop are arranged on a measured high-voltage load conducting wire in the shell, and an output end of the V/I/v voltage sampling loop and an output end of the I/icurrent sampling loop are connected with a current interface and a voltage interface of an output interface of the shell respectively. The combined type sensor can acquire supplied weak current signals, supplies the signals to a measuring instrument of milliampere or microampere standard current signals and millivolts or microvolt standard voltage signals to perform measurement, can acquire the signals accurately, reduce the consumption, save the cost and prevent electric larceny, is save and stable, and is suitable for measuring the electric quantity of a high-voltage side.

The invention discloses a single intelligent distributed power distribution terminal control method based on peer-to-peer communication. Through adoption of a peer-to-peer communication method, correct cooperation of intelligent distributed switches of different manufacturers is realized, a faulty switch is found, a fault point is timely isolated, the upgrading and reconstruction speed of the power distribution network is accelerated in a most economical mode, the safe operation coefficient of the power grid is improved, and reliable power supply to users is ensured.

The invention provides an electromagnetic piston type tool changing device which comprises a tool changing arm for rotating, and a tool changing hand for clamping a tool. The tool changing hand comprises a clamping holder, an elastic piece, a piston, abutted-against pieces and an electromagnet; the clamping holder is arranged on the tool changing arm; multiple assembling holes are formed in the circumferential wall of the clamping holder in a penetrating way; the elastic piece, the piston and the electromagnet are arranged on the clamping holder in a sleeving mode; the position of the electromagnet remains stationary relative to the piston; two ends of the elastic piece are elastically abutted against the electromagnet and the piston; and the multiple abutted-against pieces are movably arranged in the multiple assembling holes in the clamping holder and are abutted against the piston. According to the electromagnetic piston type tool changing device, no impact happens during the tool changing process, and the tool is clamped by multiple independent parallel functional components, so that the safe operation factor is high; and a locking manner is changed, so that the occurrence of the phenomenon of tool falling can be effectively prevented.

The invention discloses a power distribution network load overload visualization method and system based on big data, belongs to the field of power distribution network management service and auxiliary information decision, relates to transformer overload visualization, and aims to provide the power distribution network load overload visualization system based on big data. Fault diagnosis, prediction and fault positioning of an equipment state are realized. Data of an EMS system and a GIS system are acquired by establishing data interfaces with the EMS system and the GIS system so that the working efficiency of a dispatching desk is improved, and the safe operation coefficient of a power grid is improved; an HDFS system is adopted as a platform system, and the system has high fault tolerance and can be deployed on a cheap machine; by configuring a power distribution network data processing module, power distribution regulation and control are improved and upgraded, and real-time data acquisition and monitoring in a power distribution network are realized; and through the fault positioning module, equipment with faults and a power failure area and a user caused by the faults can be accurately positioned, and on-site repair personnel can conveniently know fault details and formulate a fault solution.

The invention discloses a turbine residual heat recycling and utilizing system which mainly comprises a residual heat boiler, a hot oil circulating pump, a smoke valve and a field control disc. High-temperature smoke discharged by a turbine motor is used as a heat source and the residual heat of smoke is recycled; heat-conducting oil is introduced to a residual heat boiler heat exchanging disc through a hot oil circulating pump and the heat-conducting oil in a residual heat boiler heat exchanging coiled pipe is heated by utilizing the high-temperature smoke; and after the heat-conducting oil is heated, the heat-conducting oil is returned to a heat-conducting oil system. According to the turbine residual heat recycling and utilizing system disclosed by the invention, the heat energy in turbine smoke can be recycled and the heat-conducting oil can be heated by effectively utilizing the residual heat of the smoke, so that the temperature of the heat-conducting oil is improved, the consumption of fuel is reduced, the load of a previous heat medium boiler is reduced, and the normal maintenance of the heat medium boiler and the normal operation of a hot oil system are guaranteed; and therefore, the risk of safely operating the previous heat medium boiler is reduced, the safety operating factor of equipment is improved and the pressure of outputting crude oil is relieved. Meanwhile, the emission of atmospheric pollutants is further reduced, and energy conservation and emission reduction are realized.

The invention discloses a cable branch box monitoring system. After an information processing module figures out that real-time information acquired by an acquisition module in a branch box real-time information acquisition system is abnormal information, a passive trigger signal is generated, an information control module receives the passive trigger signal, image acquisition control information is generated, and a monitoring end information receiving and transmitting module transmits the image acquisition control information to an image information acquisition system so that the image information acquisition system can be controlled to carry out image acquisition on the acquisition module which acquires the abnormal real-time information. A user can learn about which specific acquisition modules acquire abnormal real-time information in time and on-site operation conditions after abnormities occur so that the user can conveniently take corresponding measures, the phenomenon that power cut happens and even an accident of long-time power cut happens because handling is not carried out in time is avoided as far as possible, and thus the safety operation coefficient of the cable branch box can be increased.

The invention discloses a control method of a gas sampling and analyzing system and belongs to the technical field of online gas analysis of converters. The method comprises the steps of: building a first sampling and analyzing system and a second sampling and analyzing system; setting a first time delay timer, a second time delay timer, a third time delay timer and a fourth time delay timer; and starting the first sampling and analyzing system and the first time delay timer, starting the second sampling and analyzing system, the second time delay timer and the third time delay timer when the first time delay timer reaches a preset value, stopping the first sampling and analyzing system when the second time delay timer reaches a preset value, starting the first sampling and analyzing system, the first time delay timer and the fourth time delay timer when the third time delay timer reaches a preset value, and stopping the second sampling and analyzing system when the fourth time delay timer reaches a preset value. The control method disclosed by the invention has the beneficial effects that failure rate is low, the continuous operating and monitoring of the systems are realized and the safe operation coefficient of a gasometer is improved.

The invention discloses a movable type broken-belt catching device with a buffer device. The movable type broken-belt catching device comprises the buffer device and a broken-belt catching device body. The buffer device comprises a base, a connecting shaft and a spring, wherein the base is fixedly arranged on the ground through a foundation bolt, a connecting shaft hole is formed in the base, the spring is arranged on the connecting shaft, a limiting nut is arranged on one side of the spring, a stopping nut is arranged on the other side of the spring, a connecting shaft hole is formed in the stopping nut, the stopping nut and the base are welded together, the base is connected with the broken-belt catching device body through the connecting shaft, and the connecting shaft penetrates through the stopping nut and the connecting shaft hole of the base and is connected with the broken-belt catching device body through a bolt. The movable type broken-belt catching device with the buffer device is reasonable and compact in structure and particularly suitable for a lower conveying belt type conveyor, the accident that a broken belt is broken again when instant tension force of the conveying belt is too large can be effectively avoided due to mobility which is formed by the broken-belt catching device based on the buffer device, the safety running coefficient of the belt conveyor can be effectively increased, and the accident that people are hurt by the broken belt of the belt conveyor is effectively avoided.

The invention discloses an overheating prevention method for the cutting position of a high-speed cutter grinding machine tool, relates to the technical field of grinding machine tool auxiliary facilities and equipment, and solves a technical problem that a machine tool lacks an overheating treatment means. The method comprises steps that the real-time temperature of the cutting position is monitored in real time, and the real-time temperature is compared with set alarm temperatures of at least two gears; the real-time temperature is within an alarm temperature range, the corresponding early warning information is sent out according to the gear of the alarm temperature where the real-time temperature is located, and cooling processing is carried out according to the early warning information. The invention further discloses an overheating prevention system for the cutting position of the high-speed cutter grinding machine tool. The method has the advantages that the cutting position can be cooled in time, the defect that high-temperature cutting chips generated in the working process of the high-speed grinding machine tool are accumulated and prone to overheating spontaneous combustion or line pipeline damage is effectively overcome, the equipment state can be monitored in real time, and an equipment safe operation coefficient is increased.

The invention provides a wind power converter, a fan conversion system and a fault processing method thereof. The method comprises the steps that whether a wind power converter breaks down or not is judged, and if so, the type of the fault is determined; if the type is a general fault, a fault notification is sent to a fan master control system of a wind generating set in a fan converter system, so that the wind generating set enters a shutdown mode; and after a preset wind generating set shutdown condition is met, the wind power converter is controlled to be shut down. Namely, when the wind power converter has a general fault, the fault notification can be sent to the fan main control system, so that the wind generating set enters a shutdown mode, enough time is reserved for the wind generating set, the wind generating set can be ensured to be stably shut down, and the impact on a fan transmission chain caused by an existing rapid load reduction shutdown mode is eliminated. The service life of a fan transmission chain is guaranteed, and the safe operation coefficient of the wind generating set is improved.

The invention discloses a yaw optimization control method based on an airborne radar on-line yaw system. The method comprises the following steps that an airborne laser radar is adopted to measure wind regime parameters of a wind resource; a yaw error value is calculated according to the wind regime parameters measured by the airborne laser radar, and a unit yaw control PLC sends out a yaw instruction according to the yaw error value to conduct yaw optimization control. The airborne laser radar is arranged, the wind regime parameters in front of a wind wheel are measured according to the laser generated by the laser radar, the upcoming actual wind regime of a wind turbine can be known in advance, whether yawing is conducted or not is judged in advance, a wind turbine generator set conducts corresponding yawing strategies or other control strategies in advance according to the wind regime parameters, and finally, the effects of prolonging the unit operation life, improving the unit safe operation coefficient and improving the unit generating capacity are achieved.

The invention provides a pneumatic type tool changing device. The pneumatic type tool changing device comprises a tool changing arm and tool changing hands. The tool changing arm is used for rotating,and the tool changing hands are used for clamping a cutting tool. Each tool changing hand comprises a clamping base, an elastic part, a piston, abutting parts and an electromagnet. Each clamping baseis installed on the tool changing arm, and a plurality of assembly holes are formed in the circumferential wall of each clamping base in a penetrating mode. The elastic part, the piston and the electromagnet of each tool changing hand are arranged on the corresponding clamping base in a sleeving mode, the position of each electromagnet relative to the corresponding piston is kept in a fixed state, and the two ends of each elastic part elastically abut against the corresponding electromagnet and the corresponding piston correspondingly. The multiple abutting parts are movably and correspondingly installed in the assembly holes formed in the clamping bases and abut against the pistons. By the adoption of the pneumatic type tool changing device, no collision happens in the tool changing process, the clamping operation of the cutting tool is accomplished by a plurality of parallel functional parts which are independent from each other, the safe operation coefficient is high, the locking mode is changed, and the tool falling phenomenon can be effectively avoided.

The invention relates to a modification method of a breaker, and particularly relates to a modification method of a high-voltage breaker. Through the modification method, the modified vacuum breaker has the effects that: after partial 10kV breakers for urban power supply are replaced, the overloading condition of the breaker is eliminated, the power failure times and overhaul times are reduced, and the power supply reliability is enhanced; the vacuum breaker is replaced, thus the workload and labor intensity of the maintainers are greatly reduced and the overhaul and maintenance costs are saved; the oil leakage problem of the vacuum breaker is avoided, the defect condition of the equipment is reduced, and the maintenance workload is reduced; and after the vacuum breaker is replaced, the operational reliability of the equipment is increased and the safe operation coefficient of the power grid is increased.

A two-step process for preparing aminosulfonic acid from SO3 gas generated by sulfuric acid plant features that the fire step features high reaction temp and limited addition of SO3 and the second step features low reaction temp and addition of sufficient SO3, resulting in high safety and low cost.

The invention discloses a broken-belt catching device comprehensive performance safety test system with a buffer device. The broken-belt catching device comprehensive performance safety test system comprises a machine tail frame, a hydraulic pushing oil cylinder, a tail portion roller, a transition roller set, a conveying belt, the buffer device, a movable type broken-belt catching device, a fixed type broken-belt catching device, a machine head frame, a hydraulic automatic tensioning device, a head portion roller, a tensioning wheel, a steel wire rope, a supporting frame and a weight box. The broken-belt catching device comprehensive performance safety test system with the buffer device is reasonable and compact in structure, safe and reliable, catching performance of the broken-belt catching devices can be effectively tested, the reliable basis is provided for further application of the broken-belt catching devices, the safety running coefficient of a belt conveyor can be effectively increased, and the accident that people are hurt by the broken belt of the belt conveyor is effectively avoided.

The invention relates to a protection cover of a temperature measuring resistor device for a transformer. The protection cover comprises a case and a mounting plate connected with the case, wherein the case has a spherical cap form facing downwards; the mounting plate has a plate form; the mounting plate is located on the edge of the bottom of the case and on the middle part of the case in the anterior-posterior direction; and a mounting via-hole is formed on the mounting plate. The invention also relates to a temperature measuring resistor device for the transformer. The temperature measuring resistor device for the transformer comprises a transformer case, a temperature measuring resistor, a rubber seal ring, and the abovementioned protection cover, wherein a temperature measuring resistor mounting pile is arranged on the transformer case; the rubber seal ring is arranged above the temperature measuring resistor mounting pile; the protection cover is placed above the rubber seal ring through the mounting plate thereof; and the temperature measuring resistor extends into the transformer case after passing through the mounting hole of the mounting plate and the central via-hole of the rubber seal ring from top to bottom, and is connected with the temperature measuring resistor mounting pile through screw threads, so as to fix the temperature measuring resistor on the transformer case. Accordingly, the protection cover can protect the rubber seal ring from being exposed to the sun and rain, thereby prolonging the service life of the rubber seal ring.

The invention discloses an anti-jump milling operation method of coal mill lubricating station double-pump operation. The method comprises the steps that an air switch auxiliary contact, a thermal overload relay and an oil pressure contact are additionally arranged, combined starting of a stand-by pump is achieved, and a coal mill safe operation coefficient is increased. A forcibly opening switch is additionally arranged on an operation manipulation platform, if other problems occur in an operated oil station, an operator can enable oil station double-pump operation to be achieved by switching the forcibly opening switch, the operation is switched to a normal operation mode after a maintainer clears the failure, and it is guaranteed that stability and reliability of the coal mill operation are achieved.

The invention relates to a method for remotely automatically adjusting oil well random-load balance. The method includes the steps that an automatic adjusting control center, a torque detection unit, a power detection unit, a pumping unit stroke detection unit, a controllable balance weight positioning unit, a site manual unit, a controllable balance weight unit and an RTU remote control unit form an automatic system; the automatic adjusting control center receives input signals of the torque detection unit, the power detection unit, the pumping stroke detection unit, the controllable balance weight positioning unit and the site manual unit, conducts high-speed computing and then drives the controllable balance weight unit to move, the optimal position of a controllable balance weight is achieved when the upper stroke torque and the lower stroke torque of a pumping motor are most stable, and the automatic adjusting control center controls the controllable balance weight unit to achieve the optimal position; the automatic adjusting control center is in two-way communication with the RTU remote control unit. By the implementation of the method, oil well random-load balance can be remotely automatically adjusted under the condition that an original operating mode of a pumping unit is unchanged, and the goals of reducing loads and energy consumption of the pumping unit are achieved when the loads of a well mouth change.