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72results about How to "Change operating mode" patented technology

Intelligent monitoring operation and maintenance system for switch cabinets

The invention relates to a monitoring operation and maintenance system, particularly relates to an intelligent monitoring operation and maintenance system for switch cabinets, and belongs to the technical field of electric power systems. The intelligent monitoring operation and maintenance system for the switch cabinets comprises an intelligent operation and maintenance terminal, a server side and a mobile client terminal. Data acquired by the intelligent operation and maintenance terminal are received by the server side and are pushed to the mobile client terminal. The intelligent monitoring operation and maintenance system has the advantages that the intelligent monitoring operation and maintenance system has functions of monitoring the switch cabinets in an online manner, monitoring auxiliary systems of the switch cabinets, monitoring running states of primary and secondary equipment, analyzing faults, locating the faults, remotely monitoring the switch cabinets by the aid of video, automatically generating reports and the like; the intelligent monitoring operation and maintenance system has complete functions of monitoring the switch cabinets, operation modes of operation and maintenance staffs can be greatly facilitated, operation and maintenance modes for automatic switch cabinets with distribution networks can be completely changed, and all-data real-time monitoring, operation and maintenance can be completely implemented.
Owner:NANJING DAQO ELECTRIC CO LTD

Intelligent operation and maintenance system for electric power line

The invention discloses an intelligent operation and maintenance system for an electric power line. The intelligent operation and maintenance system comprises an intelligent operation and maintenanceterminal, a server terminal and a mobile client terminal, wherein the server terminal is used for receiving data collected by the intelligent operation and maintenance terminal and pushing the data tothe mobile client terminal; the intelligent operation and maintenance terminal is arranged in a switchgear; and the collected data include primary equipment data, namely operation parameters of a circuit breaker, secondary equipment data, namely operation data, equipment self-inspection data, an equipment constant value and soft strap data, auxiliary monitoring data, namely data of an environmentsubsystem, a security subsystem, a fire control subsystem and a power subsystem, and video monitoring data, namely real-time field operation state video data. The intelligent operation and maintenance system has a complete monitoring function, the operation mode of operation and maintenance staff is also greatly facilitated, the operation and maintenance mode of the automatic switchgear of a distribution network is completely changed and real-time monitoring, operation and maintenance of all data are completely achieved.
Owner:XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER +2

System and method for optimizing operation of cooling and heating devices in area

The invention provides a system and method for optimizing the operation of cooling and heating devices in an area. The method comprises the following steps that: S1, an upper computer queries historical load records, conforming to a current environmental temperature and humidity trend, in a historical database according to the according to a current environment temperature and humidity trend; a heating and ventilation load calculation model is invoked to calculate a typical design standard load; and weighted summation is carried out based on the historical load and the standard load, and a predicted load of a next cycle is calculated; S2, devices that meet the load need, have the matched host rated cooling capacities, and having the longest/shortest operation time are screened and serial numbers of the devices are obtained; S3, operation target parameters of the corresponding systems of the devices are calculated; and a field controller acquires a serial number of a device needing to be added or removed as well as the operation target parameters through a data channel and controls device increasing/decreasing and device operation states in the area; and S4, the S1 is performed again and closed loop control is formed. Therefore, the equipment operation efficiency is improved; the cost is lowered; and the energy consumption is reduced.
Owner:武汉中电节能有限公司

Automatic control system and method for regional cooling and heating steam desuperheating and decompression

The invention provides an automatic control system and method for regional cooling and heating steam desuperheating and decompression. The method comprises the steps that a regional cold / heat load demand is calculated; the number of steam devices to be operated is calculated, and the increase or decrease of the steam devices is judged to screen the devices; the steam pressure control target value,the temperature control target value, and the system pressure / temperature alarm limit are comprehensive calculated; whether the pressure / temperature of the current steam inlet is lower than the pressure / temperature low limit alarm value of the system is judged, and if so, an alarm is sent to an upper computer; when the pressure at the inlet of a steam pipe network is higher than the pressure of the system, automatic adjusting of the opening degree of a steam pressure regulating valve is realized through a PID algorithm for decompression control; when the temperature at the inlet of the steampipe network is higher than the temperature limit of the system, automatic control of the opening degree of a desuperheating valve and the operating frequency of a desuperheating pump is realized through the PID algorithm to perform desuperheating control; and if the temperature meets a requirement after desuperheating and decompression, the device is started. According to the invention, the working efficiency is improved; the operating cost is reduced; and energy is saved.
Owner:武汉中电节能有限公司

Control system for integrated synchronous jacking of cut pier and control method

The invention discloses a control system for integrated synchronous jacking of a cut pier and a control method. The control system comprises two hydraulic jacking devices for providing jacking power, two hydraulic circuits connected with the two hydraulic jacking devices respectively, two oil feeding amount adjusting devices and a jacking balancing state monitoring device, wherein the two oil feeding amount adjusting devices are installed on the two hydraulic circuits respectively, and the jacking balancing state monitoring device performs real-time monitoring to a balancing state of a structure needing to be jacked in the jacking process and controls the two oil feeding amount adjusting devices according to monitoring results. The control method comprises the steps of jacking preparation and jacking, upward jacking is performed to the structure through the two hydraulic jacking devices in actual jacking until the structure is jacked to a preset height, and timely dynamic deviation rectification is carried out to the structure. The control system for integrated synchronous jacking of the cut pier and the control method are reasonable in design, high in automation, good in coordinating performance and safety performance and simple and convenient to control, enables the jacking process to be smooth and efficient, and can effectively solve the construction problem that unbalanced elevation discrepancy limitation in the pier cutting integration jacking process cannot be automatically controlled.
Owner:CHINA RAILWAY FIRST GRP CO LTD

Waste tire cracking furnace

InactiveCN104059684ALarge amount of processingAvoid the disadvantages of intermittent operationPigmenting treatmentPlastic recyclingEnergy consumptionPetroleum engineering
The invention relates to a waste tire cracking furnace which comprises a cracking furnace body, a cracking system, and a heating system for heating the heating chamber, and the inside of the cracking furnace body is a heating chamber. The cracking system comprises cracking chambers, a feeding conduit, a spiral feeder and a star-like discharging valve, wherein the cracking chambers are vertically arranged in the heating chamber of the cracking furnace body and both ends of the cracking chambers extend out of the cracking furnace body, the feeding conduit is vertically installed at the top end of the cracking chamber, the spiral feeder is communicated with the feeding conduit and the star-like discharging valve is vertically installed at the bottom end of the cracking furnace. The cracking chambers of the waste tire cracking furnace provided by the invention are vertical and are alternately arranged in the heating chamber, and feed and slag discharge are continuously and hermetically operated, so that the operating mode of the rotary kiln type cracking furnace is changed, the energy loss caused by intermittent operation is reduced, and the environmental pollution caused by leakage of cracking gases in loading and unloading and overflow of carbon black is avoided. Therefore, the waste tire cracking furnace is simple in process equipment, great in handling capacity, low in production cost and low in energy consumption and can realize zero emission.
Owner:QINGDAO DONGFANG RECYCLING ENERGY +1

Synchronous pre-support and anchorage device for follow-up heading machines

InactiveCN103206232AImprove work efficiencyEasy to adapt to aisle heightProps/chocksAnchoring boltsMachineWinch
The invention relates to a synchronous pre-support and anchorage device for follow-up heading machines, belongs to the technical field of fully-mechanized coal mining equipment for coal mines and particularly relates to a device for pre-support and anchorage of a working surface. The pre-support and anchorage device is high in operating efficiency, effective in support and high in safety. According to the technical scheme, a framework is fixedly mounted on two symmetrically arranged travelling mechanisms identical in structure. A lifting anchorage platform and a pre-support platform are fixed on the framework, a lifting frame is arranged on the pre-support platform, beam transport guide rails are mounted on the lifting frame, a cart moving winch and a rail moving winch are mounted on a mounting panel of the pre-support platform, the cart moving winch is connected with a beam transport cart through a steel wire to control the beam transport cart to move on the beam transport guide rails, and the rail moving winch is connected with the beam transport guide rails through a steel wire to control the beam transport guide rails to move on the lifting frame. The synchronous pre-support and anchorage device is applicable to anchorage and pre-support of working surfaces of coal mine tunnels.
Owner:SHANXI DONGHUA MACHINERY

Remote automatic metering system for finished aluminum ingots and method thereof

The invention discloses a remote automatic metering system for finished aluminum ingots and a method thereof. The remote automatic metering system for the finished aluminum ingots comprises a digital buffer electronic platform scale, a field management computer and a centralized control center management computer. The digital buffer electronic platform scale is electrically connected with the field management computer. The field management computer is in signal connection with the centralized control center management computer. The field management computer is composed of an information display screen, a state indicating lamp, a storage module and a field management module. The centralized control center management computer is composed of a monitoring image camera, a memory and a processing module; wherein the monitoring image camera, the memory and the processing module are interconnected. The remote automatic metering system for the finished aluminum ingots and the method have advantages of realizing automatic metering for the finished aluminum ingots in aluminum electrolysis, realizing no requirement for tedious and repeated operations such as data statistics, calculation and checking manually, greatly reducing labor intensity of workers, greatly improving labor productivity, greatly reducing error probability in a metering process, ensuring good continuous operation of the system, greatly simplifying a working flow, and reducing working time.
Owner:YUNNAN RUNXIN ALUMINUM

Direct-drive pumping unit of permanent-magnet disk-type motor

The invention discloses a direct-drive pumping unit of a permanent-magnet disk-type motor. The direct-drive pumping unit comprises a frame, a permanent-magnet disk-type servo motor, a brake, a synchronous pulley, a drive shaft, a drive wheel base, a guide pulley, a pulley base, an opening synchronous belt and the like. The permanent-magnet disk-type servo motor is adopted as a power source; a motor output shaft is the drive shaft and directly drives the synchronous pulley in key connection with the motor output shaft to rotate positively and reversely; the synchronous pulley also pulls the opening synchronous belt meshed with the synchronous pulley to move in a reciprocating manner, and the two ends of the opening synchronous belt are connected with a plurality of steel wire ropes. The direct-drive pumping unit of the permanent-magnet disk-type motor, disclosed by the invention, has the beneficial effects that: a transmission system is very simple without a middle retarding mechanism; the direct-drive pumping unit is directly driven and reversed by the permanent-magnet disk-type servo motor with excellent governing performance and is matched with a servo speed control system, in addition, a weight box is adopted for performing direct balancing, so that the pumping unit has the advantages of long stroke, low jig frequency, high efficiency, low power consumption, easy adjustment of parameters, simple structure, convenience in operation and the like.
Owner:XI AN JIAOTONG UNIV

Dynamic change balance compensation device for traction elevator and dynamic change balance compensation method

The invention discloses a dynamic change balance compensation device for a traction elevator and a dynamic change balance compensation method. The dynamic change balance compensation device comprisesa lift car; a hoist rope is connected to the lift car, wound on a traction wheel and a beam pulley and then is connected to a counterweight device; the traction wheel and the beam pulley are fixed ina machine room of the top layer of the elevator room; a first liquid tank is arranged at the bottom of the counterweight device and is connected to a conveying pump through a connecting pipe; the conveying pump is further communicated with a second liquid tank, and the second liquid tank is fixed to the side shaft wall of the counterweight device; a first directional control valve and a second directional control valve are arranged at the end, close to the first liquid tank, of the connecting pipe and the end, close to the conveying pump, of the connecting pipe correspondingly; and the conveying pump, the first directional control valve and the second directional control valve are electrically connected to a controller respectively. According to the dynamic change balance compensation device and the dynamic change balance compensation method, a dynamic change compensation balance technology is utilized, so that the daily operation mode of the elevator is a favorable operation mode, thestarting current and the running current of the elevator are greatly decreased, so that the operation of the elevator can be more stable and energy-saving, and therefore the practicability is good, and the device and the method are worthy of popularization.
Owner:张洪学
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