Hello, welcome to the official website of KDP MACHINERY JIANGSU CO.，LTD.! Phone：0510-86578805
Steam ejector: How about the application effect of steam ejector?
Release time:
2021-07-24
The 0.2 MPa steam used for cooking noodles in the food factory is made from 0.9 MPa fresh steam for decompression and cooling.
What is the application effect of steam ejector? Today, let's introduce the application effect of steam ejector. Let's have a look!
Application of steam pressure matching device of steam ejector:
The production steam of a petrochemical company includes 3.5 MPa, 1.6 MPa, 1.0 MPa, 0.5 MPa, etc., of which 1.6 MPa steam was initially obtained by cooling and depressurizing with 3.5 MPa fresh steam. In order to save energy and improve the utilization rate of heat energy, the heating system was reformed in 1998. The steam ejector steam pressure matching device replaces the traditional temperature and pressure reducer. 3.5 MPa fresh steam is used as driving steam, and 0.9 MPa steam turbine is injected for exhaust. After mixing, the two kinds of steam reach 1.6 MPa. The process requires that the steam temperature is 220, the steam temperature output by the steam pressure matching device is 380, and then the water spray desuperheater is used for temperature adjustment. In order to realize automatic regulation and ensure the stability of steam parameters, the system is also equipped with an automatic control system. After being put into operation, the work is reliable and the economic benefits are obvious. Under design conditions, the ejection coefficient can reach 0. 3. When the output steam volume is 18 t/h, 0.9 MPa steam can be injected for 4 hours. Under normal production conditions, the steam consumption is 8 t/h, and the total amount of exhausted steam available is 17100 tons per year. Based on the steam consumption of 14.83 kg/(kWh), the annual power generation can increase by 1.15 million kWh, and the benefit can increase by 3772 million yuan. The total investment in equipment is 140000 yuan, and the payback period is 4 months.
Application of condensate recovery device of jet pump of steam ejector:
The 0.2 MPa steam used for cooking noodles in the food factory is made from 0.9 MPa fresh steam for decompression and cooling. The fried noodles are heated with 0.9 MPa steam, and the generated high-temperature condensate and flash steam are discharged into the trench, resulting in a total heat loss of more than 30%. The heating system has been reformed. The condensate and flash steam are recovered by the steam ejector condensate recovery unit, and the condensate flash steam is injected by the steam ejector with 0.9 MPa steam, which is increased to 0.2 MPa for steam cooking. The depressurized condensate is supplied to the bathroom. After the system is put into operation, the amount of recovered condensate is 2.00 t/h, and the amount of recovered flash steam is 1.23 t/h. If the steam price is 87 yuan/t, the water price is 1 yuan/t, the annual value of recovered flash steam is 749100 yuan, the annual heat of recovered condensate is equivalent to 2000 tons of steam, with a value of 174000 yuan, and the value of recovered condensate is 14000 yuan, with a total recovery value of 9377 yuan. The total investment of the project is 13000 yuan, and the investment recovery period is about 2 months.
The above is the application effect of steam ejector introduced to you. I hope it can help you!
