Sino-British Cooperation
A NEW......
SAFE FLAME
FROM WATER
A NEW GENERATION DEVICE THAT WILL MODERNISE THE TRADITINAL METHODS OF OXY-ACETYLENE AND GAS-AIR BRAZING.
A new generation device that will modernise the traditional methods of oxy-acetylene and gas-air brazing.

Safeflame is the development of a "Safer and better brazing flame" using Hydrogen and Oxygen from Electrolysis of de-ionised water needing only water and electricity and no chemicals.
The safeflame project is the result of EU funded research project (1.8 million Euro) from 1^st November 2011 to 31^st October 2014.
Safeflame (UK) Ltd. Was the company set up to exploit the project results on behalf of the SME AG which is made up of EABS ( European Association of Brazing and Soldering), CESOL ( Spanish Welding Association), BESA (Building Engineering Service Association).
Safeflame Hydrogen Brazing Machine was designed and manufactured on the base of Sino-British Cooperation and launched into market in 2019.
What's NEW?
NEW Safeflame torch design producing a new "FLAME" (Very different from the traditional gas/air or gas/oxy FLAMES)

Safeflame® torches linked to ELECTROLYSERS with SEPARATE streams of HYDROGEN and OXYGEN gases. Dominant "Joining process" is FLAME BRAZING.

Why is it SAFER?
NO premixed gases,
NO gas cylinders,
NO light back,
NO corrosive chemicals.

From WATER
This "new" safeflame compliments rather than competes with existing commercially available flame. It's a "new" additional flame now available to the market.

NOT to be confused with flames from electrolysis of water (mixed gas) which uses corrosive chemicals.
Fuel Gases for Flames
Where & who do we get existing fuel gases from ...

WHY has hydrogen generally been the last choice for fuel gas ?

* Low CV (Calorific Value) 330btu/cf, Natural Gas 1000btu/cf, propane 2500 btu/cf, Acetylene 1300 btu/cf

* Perceived safety issues, particularly with Oxygen and light back

* Safety issues with chemicals from existing HHO flames from water (mixed gases)

* Inconvenience of supply from cylinders for both hydrogen and oxygen

* Lack of real knowledge and experience in the supply chain compared to other fuel gases.
Gas Utility... Natural gas (Methane)

Industrial gas company Liquefied Petroleum Gas (LPG)
(Propane/Butane/Propylene)
Acetylene
Hydrogen Reformed Natural gas
Electrolysis of water
Requirements for combustion: Gas + Oxygen = FLAME
Where does Oxygen come from ?

* Air (20% Oxygen / 80% Nitrogen)
* Oxygen from a cylinder, generator
* Mixed Gas or Separate Gases (Electrolysis of water)


Why choose Hydrogen and Oxgen now ?


* Recent developments with Electrolysis (separate gases) have reduced electrolyser costs so hydrogen and oxygen can now be conveniently sourced from water

* New Safeflame®burner designs produce a new flame with no lightback, less intense, controllable and safer.

* So, for the first time unique benefits of hydrogen and oxygen can now be used safely from a convenient source of supply.

* Flame brazing is used in ALL industries including Automotive, Aerospace, HVACR and Heat pumps and many more sectors.

* Manual and automated methods

* HVACR and heat pumps is a huge global industry.

* Dominant "Joining process" is FLAME BRAZING

* Manually flame brazing holding a gas/oxygen hand torch


Types of Electrolysis

Range of Commercially available electrolysers

Safeflame uses PEM cell:

* Separate gases have two separate outlet connections for Hydrogen and Oxygen.

* Acidic (PEM) with no KOH but uses built-in catalyst


Others use HHO Cell:

• HHO mixed gas has one outlet connection.
• Hydrogen and oxygen gas immediately mix together
• Alkaline type with KOH (electrolyte)

Mixed Gas Called HHO

TWO BASIC burner DESIGNS

Pre-Mixed & Post-Mixed


Pre-Mixed: An "unpiloted" single-orifice Gas-Oxygen Burner nozzle. HHO machines use this kind of pre-mixed burner nozzle.

Post-Mixed Multi-orifices Burner Nozzle, our Hydrogen Brazing Machine use this kind of post-mixed burner nozzle.Dominant "Joining process" is FLAME BRAZING

Range of Burners and Torches


Single and Double Safeflame Torches

Various sizes of Safeflame burner nozzles are available.

Size range - The higher the number the smaller the port size.

Burners and torches can be designed according to customers' requirements.

NO Compressed gases or mains

NO corrosive chemicals required


Health and Safety

* The system eliminates the usage of Compressed gas cylinders and reduces the possibility of gas cylinder explosion.

* The Hydrogen flame is environmentally friendly. The combustion of Hydrogen and Oxygen produces water vapor and does not produces CO2 emissions, resulting in a better working
environment for the brazing operators.

• The gas pressure inside the Electrolyser is very low (< 0.5 bar) which is below any safety

regulation for high pressure vessels .
• No hydrogen and oxygen gases storage ; machine produces the hydrogen and oxygen
gases on demand.
• Brazing does not require the operator to wear any special glasses.
• The fumes are reduced by about 60-70%


Quality.
The flame is neutral and concentrated; heat is therefore localised and
does not spread, eliminating the risk to overheat the brazing piece and nearby
assembly components. Such a flame drastically reduces the oxidation inside the
brazed pipes. For the refrigeration/air-conditioning industry with less oxidation
inside the copper tubing will result in extended life-time of the compressor.

• Thanks to the neutral flame and high temperature the brazing alloy penetrates deeper into the joint producing stronger connections.
• The Hydrogen and Oxygen gases from the electrolyser are mixed automatically at the tip of the torch thus eliminating the human intervention, the flame's quality is always consistent therefore quality of brazing improves.


Technical Parameters

Practicality

• Torch is ergonomically designed and light weight (about half the weight of a conventional torch) which improves operator productivity.

• Our products eliminate light-back; the operator does not lose confidence of the system, productivity is not affected.

• All our machines use distilled or de-ionised water to generate the gases ; the water is fed to the machine automatically without the operator intervention.

{ Safeflame generate gases from de-ionised water and electrical power supply only, and nothing else. }

Costs Saved

With Safeflame you save...you avoid most of the costs below

- Cost of gas (cost of gases are rising).
- Cost of cylinder rental and cylinder transportation.
- Cost of investment to comply with safety regulations within every
brazing work cell.
- Cost to train operators to set gas mixture of a conventional torch.
- Cost of manufacturing. Brazing temperature is reached 2 to 3 times
faster when compared with a conventional system.

With Safeflame, you don't have these costs and Safeflame requires
less skill for the brazing operator. This will result in production
Efficiencies

Applications: Flame Brazing § Flame polishing § Flame Treatment § Flame heating § others

Markets

Heating Ventilation Air Conditioning and Refrigeration (HVACR) §
Jewellery industry §
Education Schools/Colleges
Glass Industry §
Plastic Industry §
Automotive/Aerospace §
And many others


Exploitation of Safeflame in the markets

What we need to do is fully identify the flame
• HVACR flame size/capacities 2 to 50 l/min
• Jewellery flame size/capacities 0.5 to 6l/min
• Education flame size/capacities 1 to 10 l/min
• Plastic polishing flame size/capacities 1 to 5 l/min

We have to match and link suitably sized Safeflame burners/torches
to suitably sized and priced electrolysers to offer commercial
"safeflame packages" that can deliver this NEW SAFER FLAME
needs, drivers and economic route to each market.


TIME
FOR
CHANGE

HYDROGEN FLAME IS ABOUT 2700 °C.
AND for the first time, SAFEFLAME CAN provide the full range of Quality Safe Electrolyser units from 1LPM to 14LPM and above at competitive prices. The Hydrogen Flame from Safeflame with its specially designed torch is safer, greener and can provide precise control of the new flame.