59results about How to "Stable energy supply" patented technology

The invention provides a CT (current transducer) energy acquisition-based ultrasonic bird repelling device for a series compensation platform, and can effectively prevent and control the problem of bird trouble of a series capacitor compensation device. In the ultrasonic bird repelling device, a circuit energy acquisition CT is adopted to supply power, large current passing through a circuit is converted into a required current, the current passes through an isolated CT realize electrical isolation, the high frequency part of power frequency current is filtered by virtue of a low-pass filter, direct current voltage is rectified and output by virtue of a rectifier, a high-frequency signal generator generates a high-frequency voltage signal between 16 and 25kHz immediately, and the high-frequency voltage signal is loaded to a piezoelectric ceramic plate of an ultrasonic speaker and is amplified to generate a high-volume ultrasonic wave which is between 16 and 25kHz and has a sound pressure level not lower than 90dB by virtue of the speaker. According to the bird repelling device, the energy acquisition CT is used as a power supply to guarantee stable high-power output, so that all-weather 24-hour uninterrupted large-area bird repelling is guaranteed; and a mode that two ultrasonic speakers are connected in parallel is adopted, and ultrasonic wave with variable frequencies is alternately and continuously generated, so that birds cannot adapt to the ultrasonic wave, and the durability of bird repelling effect is guaranteed.

The invention relates to the technical field of refrigeration equipment, in particular to a biomass gasification furnace cooling and power cogeneration system, including an absorption solution circulation loop, a liquid ammonia pipeline, an ammonia-helium mixed gas circulation loop and a pumpless organic Rankine cycle power generation mechanism, The system includes liquid storage tank I, solenoid valve I, solenoid valve II, condenser I, solenoid valve III, liquid storage tank II, solenoid valve IV, expander, generator, liquid storage tank, rectifier, evaporator, Condenser, gas-liquid separator, generator, biomass gasifier, liquid ammonia heat exchanger, evaporator, cooling output, gas heat exchanger, absorber, solution heat exchanger. The invention reduces the cost of the system and improves the reliability of the system; reduces the heat input of the whole system and improves the performance of the system; improves the combustion and ash cleaning device of the biomass gasification furnace, adds functions such as air volume control and temperature control, and makes the biomass gasify The energy supply of the furnace is more stable and efficient; the input of mechanical work is reduced, and the system efficiency is improved.

The invention mainly solves the problem that the prediction method in the prior art has a large amount of calculation and low accuracy of the prediction result; it provides a LSTM-FFNN-based electric forklift lithium-ion battery health state prediction method, which reduces the data required for training the model and improves the lithium ion battery state. The accuracy of battery state of health predictions. It includes the following steps: establishing a time-scale parameter prediction model based on LSTM to predict the change of the time-scale parameter open-circuit voltage V during the discharge process; extracting the cycle-scale parameter discharge time T from the open-circuit voltage V of the time-scale parameter prediction model to the minimum voltage min ; Establish a cycle-scale parameter prediction model based on FFNN to predict the lithium battery capacity C, thereby obtaining the predicted value SOH of the lithium battery state of health. Combining the prediction ability of LSTM for long-term series and the algorithm simplicity of FFNN, the prediction from time-scale parameters to cycle-scale parameters is realized, which reduces the data required for training the model and improves the accuracy of lithium battery health state prediction.

The invention discloses a rosin production and processing technology. The technology comprises a grease storage pool, the grease storage pool is connected with a metering tank, the metering tank is connected with a dissolving pot, and the dissolving pot is connected with a waste residue recovery device and a transition pot; the transition pot is respectively connected with the primary filter and the waste liquid recovery device, the waste liquid recovery device is connected with the metering tank, the primary filter is respectively connected with the clarifying tank and the waste residue recovery device, the clarifying tank is connected with the fine filter, the fine filter is connected with the storage tank, and the storage tank is connected with the vacuum distillation pot; the dissolving pot, the clarifying tank and the vacuum distillation pot are all connected with the steam generator; the steam generator is connected with the natural gas heat-conducting oil boiler; the vacuum distillation pot is respectively connected with two discharge pipes, one discharge pipe is connected with a condenser, the other discharge pipe is connected with a product collecting device, the vacuum distillation pot is connected with a buffer tank, and the buffer tank is connected with an oil-water separator. And the first-grade product rate of rosin production and processing is improved.