Oxy/Hydrogen gas cutting system

Oxy/Hydrogen gas cutting system
EPOCS
Electrolyzed Pure Oxy-Hydrogen Gas Cutting System

“EPOCS” is a low cost, high quality, clean cutting system.

Model HGC3500T

The “EPOCS” Hydrogen gas cutting system consists of a gas generator and a flame cutting machine. The gas generator generates Hydrogen and Oxygen from water by electrolysis. This system features low operating costs and environmental benefits because of no emission of CO2 or poisonous gases. The gas generator can also be connected to conventional flame cutting machines.

Principle

Features
Productivity Improvements

Machining time reduced by 20~30% As the combustion rate of Hydrogen gas is faster than that of other fuel gases, the Hydrogen flame is narrower and more concentrated. This provides higher heat transfer rate, higher piercing speed and faster cutting. The shorter piercing time and increased cutting speed provides a significant cost saving when compared with LPG fuelled cutting.

The table ( left ) shows the reduction of cutting time for steel plate as nested above.

Improved process quality

Lower heat stress Steel plate when heated for the same time by both conventional and Hydrogen fuelled flames shows the following heat distribution in the plate. The high combustion speed of the Hydrogen flame reduces the flame area and concentrates the thermal energy. This allows the high pressure oxygen passage to heat only the immediate area being cut, preventing excessive heat transfer to the surrounding area. This reduces cooling time and distortion caused by excessive heat stress.

Improved quality of the cut surface The surface of cut edge is smooth and dross free, reducing or eliminating the secondary processh should be changed to g. The surface of the cut edge is smooth and dross free, reducing or eliminating the need for secondary processing.

Installation and Safety

On-Site gas production This system produces Hydrogen gas on site as required. Consequently there is no storage of high pressure gas required. The machine does not need any special installation or certified or skilled personnel for handling of compressed gas cylinders.

Safer fuel gas Mixture of flammable gas and air or Oxygen is explosive, and it has a lower and upper limit of concentration for explosion. Lower explosive limit for Propane gas = 2.2% Lower explosive limit for Acetylene gas = 2.5% Lower explosive limit for Hydrogen gas = 4.0%. Thus, Hydrogen is much safer than the other gases because of its higher value of Lower Explosive Limit. Additionally, because Hydrogen is lighter than air, it does not stagnate but will quickly diffuse in the atmosphere.

Environmentally Friendly Cutting

CO2 Emissions reduction Hydrogen is a clean energy source. Water is the only product of combustion. Hydrogen combustion produces no CO2 because the molecule contains no Carbon atom, Hydrogen is the cleanest energy as an alternative to LPG, Acetylene gas or Natural gas.

Specification

Oxy/Hydrogen-gas Cutting System HGC type

Model HGC3500T HGC4000T HGC4500T Rail span 3500mm 4000mm 4000mm Rail length 3000 – 6000 – 9000mm Y-Axis stroke 2500mm 3000mm 3500mm Actual cutting length 1250 – 7250mm Actual cutting width 2500mm 3000mm 3500mm Machine height 1320mm Machine weight 400kg 450kg 500kg Electric power consumption 3p 200V 19.7kW 3p 200V 20.7kW 3p 200V 21.7kW

Hydrogen gas generator

Select from 3 models of gas generator according to the volumes of Oxygen & Hydrogen required. A 3-phase, 4-wire AC 380V power supply is required. Model M6.6 G10.2 EGS12000 Hydrogen volume 4400L/h 6800L/h 6800L/h Oxygen volume 2200L/h 3400L/h 4000L/h Continuous supply pressure 0.35 MPa Electric power consumption 23kwh 38kwh 50kwh Water consumption 3.5L/h 3.5L/h 6.5L/h Dimension 940x690x1600mm 930x1230x1700mm 980x1530x1800mm Weight 380kg 620kg 800kg