Next, compare the operating costs for you based on the actual situation of the 2-ton gas steam generator user.
2 ton steam generator PK2 ton steam boiler:
1. Air consumption comparison:
The 2-ton gas-fired steam boiler is equipped with waste heat economizer as standard. The normal exhaust temperature is 120~150°C, the thermal efficiency of the boiler is 92%, the calorific value of natural gas is calculated as 8500kcal/nm3, the consumption of 1 ton of steam gas is 76.6nm3/h, and the daily output of 20 tons of steam gas is 3.5 yuan/nm3 calculate:
20T×76.6Nm3/h×3.5 yuan/nm3=5362 yuan
The normal exhaust temperature of the 2-ton steam generator is within 70°C, and the thermal efficiency is 98%. 1 ton of steam consumption is 72nm3/h.
20T×72Nm3/h×3.5 yuan/nm3=5040 yuan
2 tons of steam generator can save about 322 yuan per day!
2. Start-up energy consumption comparison:
The water capacity of the 2-ton steam boiler is 5 tons, and it takes more than 30 minutes to ignite the burner until the boiler supplies steam normally. The gas consumption per hour of a 2-ton steam boiler is 153nm3/h. From start-up to normal steam supply, about 76.6nm3 of natural gas will be consumed. Boiler daily start-up energy consumption cost:
76.6Nm3×3.5 yuan/nm3×0.5=134 yuan.
The water capacity of the 2-ton steam generator is only 28L, and the steam can be supplied normally within 2-3 minutes after starting. During startup, only 7.5nm3 of gas is consumed per day:
7.5Nm3×3.5 yuan/nm3=26 yuan
The steam generator can save about 108 yuan per day!
3. Comparison of pollution loss:
The water capacity of the 2 ton horizontal steam boiler is 5 tons. three times a day. It is calculated that about 1 ton of soda mix is discharged per day. Daily waste heat loss:
(1000×80) kcal: 8500kcal×3.5 yuan/nm3=33 yuan.
About 1 ton of waste water, about 8 yuan
For the steam generator, only 28L of water needs to be discharged once a day, and about 28kg of soda and water mixture is required. Annual waste heat loss:
(28×80) kcal-8500kcal×3.5 yuan/nm3=0.9 yuan.
A 2-ton steam generator can save about 170 yuan per day.
If calculated according to the production time of 300 days per year, it can save more than 140,000 yuan per year.
4. Comparison of personnel expenditure:
National regulations require the use of traditional steam boilers. Typically 2-3 licensed furnace workers are required. 3,000 yuan per person per month, with a monthly salary of 6,000-9,000 yuan. It costs $72,000-108,000 per year.
The 2 ton coil direct steam power does not require a licensed furnace worker. Since the generator does not require a special boiler room, it can be installed directly next to the steam-using equipment, and only the steam equipment operator is required to manage the steam generator.Operators can appropriately increase part of the subsidy, calculated at 1,000 yuan/month
A 2-ton steam generator can save 60,000-96,000 yuan a year. Compared with a 2-ton steam boiler, a 2-ton steam generator can save 200,000 to 240,000 yuan per year! !
If it is a 24-hour continuous production company, the cost savings will be even more impressive! !
