Dairy Farm Steam Boiler Replacement
A local Dairy had an urgent requirement for a replacement Steam Boiler to service their Milk production plant. Having fully researched the project UKHVAC Supplies decided that the best solution for the Dairy Farm Steam Boiler project was the Unical BARH 12 2000kg boiler. This particular boiler met the strict design criteria set down by the Dairy’s Project Management Team.
The BAHR 12 high-pressure, three-pass reverse flame wet back boiler has efficiencies between 90 – 96%.
BAHR’12 is a family of packaged smoke tube steam boilers. Standard safety pressure up to 12 bar (higher pressure available on request) and output from 300 to 6000 kg/h. It can be operated with liquid or gaseous fuels. Every model is complete with regulations and safety accessories for automatic operation and easy commissioning.
Available in sizes from 300 to 6000 kg/hr. Every model is complete with regulatory and safety accessories for automatic operation and easy commissioning.
Design Features:
- High-quality steel shell and furnace
- Optional 24hr/72hr Controls
- Smoke chamber designed to accept possible Economiser integration.
- Efficient Thermal insulation
- Excellent Water efficiency up to 96%
- Reversible Door opening
- Simplified electrical connections.
- Choice of board panels electromechanical or electronic allowing for the integration of optional kits
- Allowance for the possible combination of one, two, three-stage or modulating burners.
The BAHR 12 High-Efficiency Steam boiler is an excellently designed and engineered product. The unit affords multiple options to allow it to be a perfect choice for boiler replacement projects.
BAHR’12 Construction features
Boiler body
The boiler body is made up of a cylindrical shell, hearth, hearth bottom, and flat steel piping plates. This is sized according to the VSG calculation code (Generators Stability Verification) and CTI recommendations and in compliance with the technical standards in force.
The materials used are accompanied by manufacturing certificates attesting to the chemical and mechanical features and inspections during the production cycle and therefore their suitability to use.
The welded joints are performed at an electric arc according to approved procedures by properly qualified personnel and subjected, according to an internal level of “Manufacture and Control”, to Non-Destructive Testing.
The smoke pipes that make up the tube bundle, are welded to the piping plates by means of qualified automatic procedures. When production is finished, any pressurised body is tested by carrying out the hydraulic test in compliance with laws/standards in force.
Front door
The front door is made of welded steel sheet. This is coated internally with a layer of insulating material (towards the outside) and a layer of refractory material (towards the inside). It is mounted on hinges that allow opening reversibility and complete adjustment.
It is equipped with self-cleaning flame-warning light. This is suitably positioned to control the correctness of combustion in operation; on the same is bolted the burner coupling plate, supplied blind, can be prepared for the type of burner indicated by the customer.
Rear smoke chamber
The smoke chamber, made of welded steel sheet and insulated with rock wool. This is fixed to the rear tube plate by bolts to allow its removal. It is equipped with a suitable cleaning door and smoke connection with horizontal axis of suitable diameter to the power of the generator.
Base and walking surface covering
The base is constituted by a frame made of steel profiles electro-welded to the tube plates and closed by means of welded steel plate. The service walkway located at the top of the generator is also composed of a steel profile frame. This is covered with chequered sheet metal (walking surface covering) and, when required, completed with a parapet with handrail.
Insulation of the planking and gables
The thermal insulation of the planking is obtained with rock wool mattress, linked with thermosetting resins, suitably supported and coated on the outside by the pre-painted aluminum case. The device gables (steam rooms) are also insulated with rock wool, externally encased. Particular attention has been paid to the drastic reduction of thermal bridges, through the interposition of felts and insulating gaskets in order to prevent body contact with the coating. This reduces the surface temperatures and limits dispersions to the benefit of both safety and yield.
UKHVAC Supplies and UNICAL AG Spa
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