The South China University of Technology

Soil and Water Conservation Monitoring Center of Pearl River Basin, Pearl River Water Resources Commission of the Ministry of Water Resources

Hao Li

Min Zhu

Jun Huang

Jiewen Li

Bin Liu

Shanshan Yin

Yan Gao

Renzong Hu

Xiaohua Li

Dui Liu

Liping Lin

Bin Yuan

Bin Yin

Weiliang Peng

Xiaolin Liu

Xinyue Kou

Zhou Xu

Le Li

Xuebing Jiang

Pingwei Jin

Guangyan Wu

The present invention discloses a compact vehicle-mounted hydrogen-oxygen generator. In the fluid path, the water circulation outlet of the water tank is in communication via one of the two one-way throttle valves with the water pump, which is in communication with the electrolytic tank of the hydrogen-oxygen generator, which is in communication with the water circulation inlet of the water tank through the other one-way throttle valve, and the gas outlet of the water tank is in communication with an engine air-inlet via the steam-water separator and the dry flame arrester in turn. In the circuit, the water pump and the electrolytic tank of the hydrogen-oxygen generator are connected in parallel to the ends of the positive and negative electrodes of the vehicle power supply, respectively; the switch, the fuse and the electrolytic tank of the hydrogen-oxygen generator are connected in series to the vehicle power supply. The present invention realizes high-efficiency electrolysis through a porous electrode rod with high specific surface area, high catalytic activity, high electrical conductivity and high surface energy (being hydrophilic and air-repellent), as well as the compact design of tightly nested stainless steel sleeves; on the premise of meeting the gas production requirements, the present invention reduces the volume and weight of the electrolytic tank; the present invention realizes the single electrolytic chamber assembly of the vehicle-mounted hydrogen-oxygen generator, and allows direct connection to a single sealed electrolytic chamber in the circuit and the fluid path, effectively avoiding the problem with the serial connection of multiple electrolytic chambers.

Compact hydrogen-oxygen generator

The present invention discloses a calculation method for a converter valve state and a valve current based on temporal features of a valve side current, the process is follows: collecting three-phase AC currents, DC currents on a valve side of a converter of a DC transmission system, and trigger pulses of converter valves; establishing a node current equation of the AC currents and valve currents; when detecting a rising edge of a trigger pulse of a converter valve, latching the number of the converter valve; according to the trigger pulses of the converter valves, and amplitude characteristics of the AC currents and characteristics of AC variations, to perform a conducting state and a blocking state judgment of valve states, and obtaining valve states; judging whether each phase has a bypass state; through summing the valve bypass states of the three phases to judge a number of bypass phases; supplementing bypass loop voltage equation; calculating the converter valve currents; when the calculated value of the valve currents is negative, the valve state is corrected to blocking state according to a one-way conductivity of the converter valves, otherwise do not correct; repeating the above steps again to calculate the valve current.

Method for solving for converter valve states and valve currents based on valve-side current timing characteristics

The present disclosure provides a multi-layer open channel portable flow measuring device based on a water impulse principle and a flow measuring method; an instantaneous water head height of a water-carrying section, namely, a water level H is measured through a pressure sensor at a bottom of a U-shaped hollow tube; at the same time, layered multi-point velocity measuring components in equidistant layout include a series of position 'current meters' composed of tension sensors, hollow punching lightweight steel balls and lightweight elastic steel ropes to measure velocities Vof different points, n depends on the layer decided to be arranged according to a channel depth, an instantaneous flow value of the whole water-carrying section is further acquired through multi-layer flow accumulation, and with a simple structure, intelligent control, easy operation and convenient carrying, the present disclosure may further improve the flow measuring precision.

Multi-layer open channel portable flow measuring device based on water impulse principle and flow measuring method

Growing community of inventors

Guangzhou, China

Hao Li