compare operating costs of 10 tons oil steam boilers with coal-fired steam boilers

2019-01-28 16:00:12

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Comparing the operating costs of 10 ton oil-fired steam boiler with coal-fired steam boiler. First, understanding the specific parameters of the steam boiler. Only knowing the parameters can accurately calculate the operating cost of the boiler.Then,you can take a compare.

1.technical parameters of 10 tons of fuel steam boiler:

Boiler model: WNS10-1.25-Q

Rated evaporation: 10t/h

Rated working pressure: 1.25MPa

Oil or gas fuel consumption: 700 square /h

Feed water temperature: 20 °C

Export steam temperature: 194 ° C

Hydraulic test pressure: 1.65MPa

Exhaust gas temperature: 69.19 ° C

Boiler thermal efficiency: 99.7%

Size: 7150 × 2850 × 3400

Weight: 22.5t

2.fuel consumption calculation of a 10 ton oil-fired steam boiler:

Fuel steam boiler fuel consumption per hour = 3600* heat power / calorific value / boiler efficiency

The thermal efficiency of a 10 ton oil-fired steam boiler is 7 MW, combustion heat value is 42.42 Mj/kg, and the general efficiency of a ZBG’s oil-fired boiler is 92%. Then the fuel consumption of a ZBG 10 ton oil-fired steam boiler = 3600s*7MW/42.42 Mj/kg/92%=645.5kg

operating costs of 10 tons oil steam boilers
10ton gas fired steam boiler

3.the operating cost of a 10 ton oil-fired steam boiler:

1. Fuel cost: 10 tons of fuel steam boiler produces 10 tons of steam per hour, fuel consumption is about 650Kg, oil price is 6 RMB/kg, about one hour of fuel cost = 650Kgx6 RMB/ kg = 3900 RMB, 1 year fuel cost It is 3900*8*360=112 million.

1. Cost of electricity consumption: consumption is 2.2Kwh, electricity price is 0.58 RMB/degree, total cost is 1.28 RMB, and the annual electricity cost is 1.28*8*360=3686.4RMB

1.Technical parameters of four or 10 tons of coal-fired steam boilers:

Model: DZL10-1.25/1.6

Evaporation: 10T/H

Working pressure: 1.25Mpa

Feed water temperature: 20/60/105 °C

Steam temperature: 184/194/204/214/224°C

Design fuel: two types of bituminous coal, anthracite

Combustion method: chain grate burning

Boiler size: 7745x3773x3441 mm

2.Calculation of coal consumption of five or 10 tons of coal-fired steam boilers:

costs of 10 tons coal steam boiler
10ton coal fired boiler

The heat required by the boiler, divided by the calorific value of the coal, divided by the thermal efficiency of the boiler, is the hourly coal consumption of a 1 ton coal-fired boiler. Generally, the heat required for a 1 ton coal-fired boiler is 600,000 kcal/hour, the calorific value of the second-class bituminous coal is about 5,500 kcal/kg, and the thermal efficiency of the boiler is generally about 75%.

Then the coal consumption per hour of a 1 ton coal-fired boiler is: 600000kcal/h÷5500kcal/kg÷75%=145.5kg/h.

The coal consumption per hour of a 2 ton coal-fired boiler is 145.5*2=291kg/h.

The coal consumption per hour of a 3 ton coal-fired boiler is 145.5*3=436.5kg/h.

The coal consumption per hour of a 4 ton coal-fired boiler is 145.5*4=582kg/h.

The coal consumption per hour of a 6-ton coal-fired boiler is 145.5*6 = 873kg/h.

The coal consumption per hour of an 8 ton coal-fired boiler is 145.5*8=1164kg/h.

The coal consumption per hour of a 10 ton coal-fired boiler is 145.5*10=1455kg/h.

3.Operating costs of six or 10 tons of coal-fired steam boilers:

1. Fuel cost: 0.2 tons of coal consumption per ton of steam, 400 RMB/ton of coal, total cost 80RMB; fuel cost of 10 tons of coal-fired steam boiler for one year: 80*10*8*360=33 Ten thousand RMB.

2. Cost of electricity consumption: consumption is 9.6Kwh, electricity price is 0.58 RMB/degree, total cost is 5.57 RMB, and the annual electricity consumption cost of 10 tons of coal-fired steam boiler is 5.57*8*360=0.16 million.

3, ash treatment costs: 30,000 RMB/ year;

4. Environmental protection fee: 100,000/year;

5, labor costs: need 6 people, 20,000 RMB / person.

Total: The operating cost of a 10-ton coal-fired steam boiler for one year is: 330,000 + 0.16 million + 30,000 + 100,000 + 120,000 = 631,600RMB.

4.Comparison of operating costs of seven, 10 tons oil steam with coal-fired steam boilers:

It can be seen that the operating cost of a 10-ton fuel steam boiler for one year is: 1.12 million + 0.04 million + 15,000 + 50,000 + 20,000 = 1,205,400 RMB. The operating cost of a 10-ton coal-fired steam boiler for one year is: 330,000 + 0.16 million + 30,000 + 100,000 + 120,000 = 631,100 RMB.

Diesel steam boilers have a large operating cost, please consult online customer service.

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