41results about How to "Improve safety indicators" patented technology

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system part comprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

The invention discloses timbering equipment for coal mines. The timbering equipment comprises a front row frame, a rear row frame, a hydraulic thrust cylinder and hydraulic props, wherein the front row frame comprises more than two front row top beams and more than two front row trimmers; the front row trimmers are arranged under the front row top beams side by side; one front row trimmer is connected with more than two front row top beams; the hydraulic props are arranged under the front row frame; the rear row frame comprises more than two rear row top beams and more than two rear row trimmers, wherein the rear row trimmers are arranged under the rear row top beams side by side, one rear row trimmer is connected with the more than two rear row top beams, and the hydraulic props are arranged under the rear row frame; the front row top beams and the rear row top beams are arranged at intervals, and gaps are arranged between the front row top beams and the rear row trimmers adjacent to the forward direction; and one end of the hydraulic thrust cylinder is connected with the front row frame, and the other end of the hydraulic thrust cylinder is connected with the rear row frame. A working surface adopting the timbering equipment has no empty-support phenomenon and has a large area for supporting a top plate.

The invention discloses a thermoelectric power station automatic control system based on artificial intelligence. It includes dispersible control system, virtual DCS simulation system, program controlling system, monitoring information system and malfunction diagnosing and optimizing controlling system; the dispersible control system is connected with the virtual DCS simulation system and program controlling system; the program controlling system process the operating parameters of every machine group transmitted by dispersible control system, and at the same time transmits data to monitoring information system to display, then transmits malfunction diagnosing and optimizing controlling system to have equipment state monitoring, malfunction diagnosing and forewarns. The invention gathers automatic control, optimizing operation, security monitoring and malfunction diagnosing and forecast. It can improves the automated management level of the thermoelectric power station operation, and enhances enterprises' benefit. It has great economic and applied value in the producing process automatic control of the thermoelectric power station.

The invention discloses a three-redundancy dual-drive motor control platform and a control method. The platform includes three independent control channels and two independent drive channels; its main control steps are: 1. The three independent control channels are first synchronized to ensure that the tasks are executed at the same time; 2. Obtain the two channels of each independent control channel Initial control signal; 3. Determine two final control signals of each independent control channel; 4. Use the final control signal to power the controlled motor to realize motor control. The present invention enables the motor control system to have internal and external fault detection and processing capabilities from the motor control platform level, greatly improves the reliability of the motor control system, and avoids the occurrence of "sick work" of the motor control system.

The invention discloses walnut milk and a process for producing the walnut milk. The walnut milk comprises the following components by weight percent: 3%-5% of walnut seeds, 6.5%-7.5% of sucrose, 0.3-0.4% of food additives, 0.02%-0.04% of walnut essence, 0.04%-0.05% of sodium carbonate and the balance of purified water; and the process for producing the walnut milk mainly comprises the process steps of preparing raw pulp of the walnut milk, preparing material soup, preparing walnut milk liquid, inspecting performance indexes of the walnut milk, packaging, inspecting whether packaging is qualified or not, sterilizing, cooling, spraying a code, packaging and the like. The walnut milk liquid prepared by the process disclosed by the invention is moderate in fragrance and sweetness and high instability, and is free of any harmful chemical component; the walnut milk finished product can be preserved for a long time on the basis of fully ensuring higher nutritional value of the walnut milk and is also convenient to take.

The invention discloses a remote debugger for a remote debugging system. The remote debugger comprises a network communicator and multiple executors. Each executor is connected with a debugged device through an RS232 bus and a power line. The network communicator comprises a single chip microcomputer U1, an RS 232 interface circuit, an RS 485 interface circuit, a power circuit, a power control circuit, an IIC interface, an RJ45 interface and a debugging program download circuit, wherein the power control circuit is used for controlling switching-on and switching-off of a power source of the executors. Each executor comprises a microprocessor U9, a serial port switching-on control circuit, an IIC interface, a power interface and a power control circuit of a controlled device. The remote debugger for the remote debugging system has the advantages that the remote debugger can remotely reset power failures of a device and remotely monitor the device, remote management and state monitoring of the device are achieved, enterprise safety indexes are improved, and work efficiency is improved.

The invention relates to an intelligent label lock for radio frequency identification. Functions of authenticating users, calculating passwords, recording working logs, controlling mechanical transmission and the like are realized. The intelligent label lock is characterized by comprising a main controller, a radio frequency transmitting and receiving circuit, a liquid crystal display circuit, a keyboard circuit, a storage circuit, a position sensing circuit, a motor driving circuit, a boundary scanning port simulation circuit and a power circuit. An electronic label module is arranged in the intelligent label lock; handheld standard reading equipment and the electronic label module can perform wireless data interaction at a near distance; the electronic label module sets and reads a code of a random number and then controls a motor to rotate and move a baffle; and a mechanical key is permitted to be used for locking and unlocking. By the technology, obvious advantages in the reliability, flexibility, economical property and other aspects are realized; the safety index of lock management can be greatly improved; and urgent requirements on the industries of power, municipal administration, finance, logistics and the like are met.

The invention provides a nuclear power plant emergency power system and a power supply control method, which are used to provide power for important equipment in the nuclear power plant when the existing emergency power supply is lost. The system includes: a control detection unit for real-time detection of the working status of the existing emergency power supply The controller is used for the wind and solar energy storage system that provides power to the controller in severe accident conditions; it is used for the water storage energy storage system that executes the water storage energy storage power generation according to the power generation control command of the controller; after receiving the existing When the emergency power supply is in an invalid working state, the water storage and energy storage system is controlled to generate electricity, and the water storage and energy storage system transmits the generated electric energy to the important equipment of the nuclear power plant, and at the same time controls the discharged water as backup cooling water to the reactor core through the water injection circuit. Heat for cooling. As an emergency power supply for a nuclear power plant, the present invention has better economical efficiency and is convenient for overhaul, test and maintenance compared with a scheme in which a diesel engine is used as an emergency power supply; while improving the overall safety index of the nuclear power plant, it also has economical efficiency.