Overcurrent protection device of ozone generator
An ozone generator and pulse synchronization technology, applied in the fields of biochemistry, detection, and control, can solve the problems of signal synchronization, reduction of ozone production, burning of high-voltage packs and ozone generators, etc., to achieve consistent working frequency and basically constant production Effect
Active Publication Date: 2014-12-10
XIAN FEISIDA AUTOMATION ENG
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, most of the commonly used ozone generators currently use a pulse-controlled push-pull circuit to drive the high-voltage pack, and the high-voltage pack outputs high voltage to drive the ozone generating tube, etc. After the dielectric breakdown in the ozone generator, the power amplification and the high-voltage pack are often And the ozone generator is burned, and the ozone generation will be greatly reduced if the shutdown time is too long, which will seriously affect the reliability and application range of the system; Many ozone water treatment systems are not working properly, and it is difficult to effectively promote and use them at home and abroad
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] refer to figure 1 — figure 2 .
[0016] 1. After the ozone generator breaks down the medium, the limited voltage feedback signal is obtained through the current detection of the high voltage package. The voltage feedback signal is delayed by integration, and the delay time is in accordance with the frequency, duty cycle and allowable breakdown of the ozone generator of the system PWM pulse control signal. The medium duration is determined and set in advance in the system;
[0017] 2. According to the pre-set delay time, the voltage feedback signal is shaped by the AND gate and used as the clock pulse CP of the D flip-flop. The input signal D is the limited voltage feedback signal. When the ozone generator breaks through the medium, the time exceeds the set value When the CP pulse has a rising edge, the output Q is positive, and the turn-off signal of the control signal PWM is generated to the base of the switching transistor, the switching transistor and the power am...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
In order to overcome the technical defect that the protection circuit of the traditional ozone generator is difficult in synchronous switching off, the invention provides an overcurrent protection device of an ozone generator, which is used for detecting a feedback voltage signal through a high-pressure coil current. The feedback voltage signal is shaped according to preset delay time and then a power amplifier tube is switched off. A protection device switch control signal and a system control signal PWM (Pulse Width Modulation) pulse are synchronized through power supply control, and consistency of system working frequencies is ensured.
Description
technical field [0001] The invention relates to an ozone generator overcurrent protection method and circuit, and belongs to the technical fields of detection, control, biochemistry and the like. Background technique [0002] With the rapid development of contemporary society, water pollution is becoming more and more serious, and the comprehensive treatment of wastewater has become a major problem that needs to be solved urgently in the contemporary environment. At the beginning of the 20th century, wastewater purification technology has basically formed a treatment method that is now generally called a conventional treatment process, that is, coagulation, sedimentation or clarification, filtration and disinfection. However, in the 1980s and 1990s, the micro-pollution of the water body intensified, making it difficult to meet the requirements of only treating the source water with traditional water treatment processes, and advanced treatment was necessary. Therefore, c...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/08C02F1/78
Inventor 史忠科
Owner XIAN FEISIDA AUTOMATION ENG