Gas Fired Steam Boiler
Revotech-G
Packaged non-IBR four-pass steam boiler with an imported, fully automatic gas burner — efficiency in the vicinity of 90 %.
300 – 1000kg/hr steam (F&A 100 °C)
15 kg/cm²working pressure
~90 %overall efficiency
PNG / LPGfuel
Features
Built for the plant floor
- Four-pass design with economizer
- Reverse flue design
- Packaged Unit
- Specially designed fully automatic Indigenous ‘GAS BURNER’
- High combustion efficiency
- Easy access for inspection and cleaning
- High operating efficiency
- Fully automatic unit
- Low system lag and rapid warm up response
- Insulated Boiler Body to minimise radiation losses
- Outside the purview of IBR
- Instant Steaming
- Explosion possibilities are nil
- Qualified attendant not required
- Can attain pressures upto 15kgs/cm2
- Fail-safe design, dependable safety instruments
- Easy conversion to different liquid and gaseous fuels
- Can attain pressure upto 15kg/cm²
Built for natural gas and LPG
Neotech's gas-fired steam boilers, model Revotech-G, are packaged models in a unitised design. They represent the latest design in non-IBR boilers and use the Reverse Flue combustion principle, which increases combustion efficiency and allows a high rate of heat flux.
Efficiency module
The unit is supplied as a package: the main boiler, an imported fully automatic gas burner, and an Efficiency Module made up of an atmospheric economiser and heat optimiser. Together they give an overall thermal efficiency in the vicinity of 90 %.
Gas, or dual fuel
Revotech-G comes in two burner configurations. IB is gas fired, with a fully automatic indigenous gas burner and a two-stage, soft-start gas train that prevents back-firing. IBDF is oil-cum-gas dual fuel, so the plant can run on light oil whenever gas is unavailable. Both need 100 mbar gas pressure at the inlet of the control valve station.
Safe by design
Revotech-G is designed and built for easy operation, and has several safety features that make the unit failsafe.
Applications
Plants on PNG / city gasFood & bakeryPharmaceuticalsHotels & hospitals (laundry, kitchen)Textiles
Technical specification — Revotech-G (gas fired)
| Parameter | RTG:03 | RTG:04 | RTG:05 | RTG:06 | RTG:08 | RTG:085 | RTG:10 |
|---|---|---|---|---|---|---|---|
| Steam output (F&A 100 °C)kg/hr | 300 | 400 | 500 | 600 | 800 | 850 | 1000 |
| Steam pressurekg/cm² | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Fuel consumption — NGm³/hr | 21 | 28 | 35 | 42 | 56 | 60 | 70 |
| Fuel consumption — LPGkg/hr | 16.07 | 21.5 | 27 | 32.14 | 43 | 46 | 54 |
| Efficiency (NCV)% | 88 ± 2 % | ||||||
| Start-upminutes | 3 | 3 | 5 | 5 | 5 | 5 | 5 |
| Burner control | On / Off | ||||||
| Pressure parts | Outside the purview of IBR | ||||||
| Electric supply | AC 3 phase 415 V ± 6%, 50 Hz ± 3%, 4 wire system | ||||||
| Feed water pump motorhp | 1 | 1 | 1 | 1 | 1.5 | 1.5 | 1.5 |
| Burnerhp | 0.54 | 0.72 | 0.72 | 1.14 | 2.27 | 2.27 | 2.27 |
| Total electrical loadhp | 1.54 | 1.72 | 1.72 | 2.14 | 3.77 | 3.77 | 3.77 |
| Flue gas outletmm | 200 | 200 | 250 | 250 | 300 | 300 | 350 |
• Calorific value of NG: 8,600 kcal/Nm³ · LPG: 11,500 kcal/kg.
• Efficiency is guaranteed on the test bay with commercially clean internal and external heat-transfer surfaces.
• Designs and specifications are subject to change due to constant research & development.
Scope of supply
What comes with every unit
The standard supply package, the controls and safeties fitted as standard, and what we need at site, as listed in Neotech's scope of supply.
Boiler standard scope
- One double jacketed air casing to enclose the pressure parts and serve as an integral combustion air preheater along with Specially Designed Aluminium Radiator, to minimise radiation losses and maximise efficiency.
- One pressure part assembly consisting of closely wound helical vertical coil fabricated out of SEAMLESS PIPES, with spacers of special design.
- One Down firing, pressure jet burner assembly of dual block design and suitable for Natural gas firing. The Burner will be an Indigenous Burner with total controls for fully automatic operation and safeties for totally safe operation, along with gas control valve station.
Control valve station
- THE BURNER WILL BE SUPPLIED WITH A FULL-FLEDGED GAS VALVE STATION COMPRISING OF:
- Inbuilt Metallic Gas Filter.
- Solenoid Valve for SOFT-START & ON-OFF operation of the unit. (2 Nos. solenoid valves are provided).
- These filters are used to filter the incoming gas so as to ensure smooth operation of Burner and ensure failsafe operation of pressure switch & solenoid valves.
- The TWO STAGE GAS TRAIN comprises of 2 Nos IMPORTED SOLENOID VALVES with Gas Volume adjustment (flow Adjustment). The TWO-STAGE Gas Train ensures Soft-Start of the system, thereby eliminating any chances of BACK-FIRING or surges during ON-OFF operation.
Air pressure switch
- An Air Pressure Switch is provided as an ultimate safety towards ‘NO-AIR FLOW’ to safeguard the unit. The air pressure switch will be of Dungs [Germany] Make.
Not included (customer's scope)
- N.G / L.P.G. Piping up to Gas Valve.
- Gas Pressure reduction system will be extra.
- Electricals cables up to Burner.
- NOTE: WE WILL REQUIRE 100 MBAR GAS PRESSURE AT THE INLET OF CONTROL VALVE STATION.
Accessories
- One Boiler feed pump with surge suppressor and relief valve also mounted on the same frame. The BFP will be driven by a motor.
- One specially designed EFFICIENCY MODULE Comprising of atmospheric economiser and heat optimiser to preheat the water.
- One Dust proof, prewired control panel housing necessary starters, fuses, contactors, relays etc.
Piping
- One feed water line between economiser, optimiser, feed pump and Boiler.
- One Steam Header with feed check valve.
Mounting and fittings
- One Main steam stop valve.
- One Auxiliary steam bypass valve.
- One single port spring loaded safety valve.
- One Blowdown valve.
- One Drain valve for economiser.
- One Non-return valve on feed water line.
- One Solenoid valve on fuel gas inlet to burner.
- Two isolating needle valves for indicating instruments.
Instruments, controls and safeties
- One steam pressure indicator.
- One Digital Electronic Steam temperature indicator - cum - controller.
- One Steam pressure switch for ON - OFF combustion control.
- One Feed water temperature indicator.
- One B.F.P. pressure indicator.
- One Low level control.
- One Flame failure device (part of sequence Controller).
- One Audio visual alarm for abnormal conditions.
- One limit switch on blow down line.
- One Explosion door.
Battery limits
| STEAM | Main Steam Stop Valve. Auxillary Steam bypass valve. Safety valve on steam outlet line. |
|---|---|
| WATER | Inlet of heat optimiser. Blow down valve outlet. Drain connection for water pump relief valve. Air vent connection for economiser. |
| FUEL GAS | Inlet of fuel Gas Burner. |
| AIR & FLUE GAS | Suction of blower. Flue gas outlet on economiser. |
| ELECTRICALS | Terminal connectors on control panel. |
Boiler standard scope
- One double jacketed air casing to enclose the pressure parts and serve as an integral combustion air preheater along with Specially Designed Aluminum Radiator, to minimise radiation losses and maximize efficiency.
- One pressure part assembly consisting of closely wound helical vertical coil fabricated out of SEAMLESS PIPES, with spacers of special design.
- One Down firing, pressure jet burner assembly of dual block design and suitable for Light Oil firing. The Burner will be an Indigenous Burner with total controls for fully automatic operation and safeties for totally safe operation.
Accessories
- One centrifugal blower with motor mounted on a special frame.
- One fuel pump coupled with motor mounted on a special frame with guard etc.
- One boiler feed pump with surge suppressor and relief valve also mounted on the same frame. The B.F.P will be driven by a motor.
- One electrically heated fuel oil preheater mounted on frame (for F.O. fired units only).
- One dust proof, pre wired control panel housing necessary starters, fuses, contactors, relays, etc
Piping
- One feed water line between economiser, optimiser, feed pump and boiler.
- One Steam Header with feed check valve.
- One fuel oil line from filter to burner inlet.
Mounting and fittings
- One main steam stop valve.
- One auxiliary steam bypass valve.
- One single port spring loaded safety valve.
- One blow down valve.
- One drain valve for economiser.
- One relief valve on OPH tank (for F.O. fired units only).
- One non-return valve on feed water line.
- One solenoid valve on fuel oil inlet to burner.
- Three isolating needle valves for indicating instruments.
Instruments, controls and safeties
- One steam pressure indicator.
- One digital electronic steam temperature indicator-cum-controller.
- One steam pressure switch for ON-OFF combustion control.
- One fuel oil pressure indicator.
- One feed water temperature indicator.
- One feed water pressure indicator.
- One low level control.
- One flame failure device (part of sequence controller).
- One audio visual alarm for abnormal conditions.
- One limit switch on blow down line.
- One explosion door.
Scope of supply for gas burner
- (A) GAS BURNER MODEL CONSISTING OF:
- Burner Block
- Complete Burner Block with Diffuser
- Disc assembly, Gas Distributor assembly
- Ionisation Probe assembly, tie – rods etc.
- Sequence Controller with LED Display.
- Connector / Terminal strip
- Mounting Flange
- Mounting flange gasket
- Fixing screws
- (B) CONTROL VALVE STATION:
- THE BURNER WILL BE SUPPLIED WITH A FULL-FLEDGED GAS VALVE STATION COMPRISING OF:
- Inbuilt Metallic Gas Filter.
- Solenoid Valve for SOFT-START & ON-OFF operation of the unit. (2 Nos. solenoid valves are provided).
- Inbuilt Metallic Gas Filter.
- These filters are used to filter the incoming gas so as to ensure smooth operation of Burner and ensure failsafe operation of pressure switch & solenoid valves.
- Solenoid Valves:-
- The TWO STAGE GAS TRAIN comprises of 2 Nos IMPORTED SOLENOID VALVES with Gas Volume adjustment (flow Adjustment). The TWO-STAGE Gas Train ensures Soft-Start of the system, thereby eliminating any chances of BACK-FIRING or surges during ON-OFF operation.
- (C) AIR PRESSURE SWITCH:
- An Air Pressure Switch is provided as an ultimate safety towards ‘NO-AIR FLOW’ to safeguard the unit. The air pressure switch will be of Dungs [Germany] Make.
Not included (customer's scope)
- N.G /L.P.G. Piping up to Gas Valve.
- Gas Pressure reduction system will be extra.
- Electricals cables up to Burner.
- NOTE: WE WILL REQUIRE 100 MBAR GAS PRESSURE AT THE INLET OF CONTROL VALVE STATION.
Battery limits
| STEAM | Main steam stop valve. Auxillary steam bypass valve. Safety valve on steam outlet line. |
|---|---|
| WATER | Inlet of heat optimiser. Blow down valve outlet. Drain connection for water pump relief valve. Air vent connection for economiser. |
| FUEL OIL | Inlet of fuel oil filter. |
| AIR & FLUE GAS | Suction of blower. Flue gas outlet on economiser. |
| ELECTRICALS | Terminal connectors on control panel. |
Enquiry
Get a quotation for Revotech-G
Tell us the duty, the fuel available and your location. An engineer will call back with a selection and a price, usually within one working day.
- Office: +91 22 2859 0678
- Factory: +91 98210 28660
- sales@neotechboilers.com
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