9000A 24V Water cooled electrocatalytic oxidation rectifier （N+1 parallel operation method for 4 units）

Product Parameters

Commonly Used Water Treatment Power Supply Models (Custom models are available if not listed in the table).
Model	Output current A	Output voltage V	Power KW	Input current A	Input voltage V	Weight (KG)	Width W * Length L * Height H
GH10024	100A	24V	2.4	12	220	17	380*400*170
GH100100	100A	100V	10	17	380	40	450*500*225
GH120100	120A	100V	12	20	380	40	450*500*225
GH20015	200A	15V	3	15	220	17	380*400*170
GH20024	200A	24V	4.8	8	380	40	450*500*225
GH20036	200A	36V	7.2	12	380	40	450*500*225
GH20048	200A	48V	9.6	16	380	40	450*500*225
GH200100	200A	100V	20	33	380	130	510*580*920
GH30024	300A	24V	7.2	12	380	40	450*500*225
GH30036	300A	36V	10.8	18	380	40	450*500*225
GH30048	300A	48V	14.4	24	380	95	510*580*690
GH300100	300A	100V	30	50	380	130	510*580*920
GH33030	330A	30V	9.9	16.5	380	40	450*500*225
GH40030	400A	30V	12	20	380	40	450*500*225
GH50024	500A	24V	12	20	380	95	510*580*690
GH50036	500A	36V	18	30	380	95	510*580*690
GH50048	500A	48V	24	40	380	95	510*580*690
GH50012	500A	12V	6	10	380	45	380*400*170
GH60048	600A	48V	28.8	48	380	95	510*580*920
GH100024	1000A	24V	24	40	380	95	510*580*690
GH100036	1000A	36V	36	60	380	130	510*580*920
GH100048	1000A	48V	48	80	380	130	510*580*920
GH100012	1000A	12V	12	20	380	45	480*525*310
GH200024	2000A	24V	48	80	380	130	510*580*920
GH300024	3000A	24V	72	120	380	165	530*600*1200
GH4000100	4000A	100V	400	667	380	195	580*650*1400
GH800036	8000A	36V	288	480	380	235	600*680*1600
GH1000036	10000A	36V	360	600	380	260	800*1350*1510

Process Overview

Electrocatalytic oxidation is an advanced oxidation technology. Under ambient temperature and pressure conditions, and with catalytic induction, the catalyst coating on the anode surface undergoes a series of physicochemical interactions with organic pollutants in wastewater. This process generates reactive intermediates (such as H₂O₂,·OH, ClO⁻, and other nascent oxidants) along with one or more novel coagulants. These components catalyze multiple physicochemical reactions—including oxidative decomposition, coagulation, adsorption, complexation, and displacement—effectively degrading target pollutants.

Application

Electrocatalytic oxidation technology is an advanced oxidation technology. Under normal temperature and pressure and catalytic induction, a series of physical and chemical reactions occur between the catalyst coating on the surface of the anode plate and the organic pollutants in the waste water. At this time, active intermediates(nascent oxidizing agent such as H202,·0H, Cl0-, etc.)and one or more new ecological coagulants will be generated, resulting in catalytic oxidative decomposition, coagulation, adsorption, complexationreplacement, etc. Physical and chemical effects to achieve the degradation of targetpollutants.

Technical Features

1. Low operating costs: this technology eliminates the need to add expensive oxidants, which greatly reduces the costs;
2. No secondary pollution: the system produces almost no sludge and no secondary pollution;
3. Strong oxidizing ability: the highly oxidizing hydroxyl radicals generated by electrocatalytic oxidation can oxidize most pollutants, and the reaction is non-selective;
4. Automated control: electrocatalytic oxidation technology is automatically controlled, unattended and easy to manage.
5. Scope of application: zero discharge projects of highly difficult wastewater in thermal power plants, chemical industry, papermaking, steel, printing and dyeing and other industries.

Structure

The water treatment power supply primarily consists of a rectifier-filter circuit, a full-bridge converter circuit, a high-frequency transformer, a high-frequency rectifier-filter circuit, an auxiliary power circuit, and a main control unit. The main control unit circuit mainly comprises phase loss protection, temperature protection, overload protection, short-circuit protection, and a PWM circuit with PI regulation.

The three-phase grid voltage is rectified and filtered after passing through the power switch, yielding a smoothed 520VDC supply for the inverter circuit. The inverter circuit primarily employs high-power MOSFET or IGBT modules to form a full-bridge converter. When the PWM output control signal drives the power modules through isolated drivers, two sets of diagonal transistors conduct alternately. This generates a high-frequency pulse voltage in the primary winding of the high-frequency transformer. The secondary voltage is transformed by the high-frequency transformer, rectified, and then supplies energy to the load.

Features

• The power supply can operate in either voltage-regulated current-limited mode or current-regulated voltage-limited mode, with seamless switching between the two states.
• DC output voltage regulation accuracy ranges from 50% to 100%. When input voltage fluctuates by 10% or load changes occur, the output voltage remains stable with regulation accuracy ≤0.5%.
• Incorporates filtering functionality to prevent interference with instruments during power-up, eliminate grid pollution, and mitigate current inrush phenomena.
• Phase Loss Protection: Automatically locks out when any phase is missing from the three-phase AC input. Resumes operation automatically after fault resolution.
• Overcurrent Protection: Automatically enters overcurrent shutdown and alarm state when current exceeds rated value.
• Short-circuit protection: In case of load short-circuit or internal component short-circuit, the circuit breaker automatically disconnects the power supply.
• Over-temperature protection: When abnormal temperatures of semiconductor components (e.g., IGBT, Schottky diodes) reach ≥80°C, the electronic switch on the main control board activates, locking the power supply to effectively protect the unit.