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Application of steam ejectors

2021-09-22


So far, steam ejectors have been used in the petrochemical and food industries, so what kind of position do steam ejectors occupy in these two? Next, I will talk to you about the application of steam ejectors in the petrochemical and food industries.
       
Steam ejectors are used in petrochemical industry production to produce pressure classes of 0.51 1.63.5, of which 1.6 steam is obtained by using 3.5 new steam through well temperature depressurization, in order to better save energy and improve heat energy utilization efficiency, people have modified the heating system, using steam ejectors to start the traditional temperature and pressure reducer, so as to use 3.5 new steam as the drive steam innuendo 0.9 steam turbine for exhaust, when the two are evenly mixed, the pressure of the steam can reach 1.62 petrochemical industry process requirements of 220 °C steam, steam pressure matcher can output temperature of 380. blocked, so at this time you can use a water spray desuperheater to adjust the temperature, so that the temperature is reduced, in order to be able to achieve automatic adjustment to ensure the stability of steam parameters.
       
The steam ejector is also installed with an automatic control system, after it is put into operation, it is very reliable in the process of work, and the economic benefits that can be produced are obvious, under the designed working conditions. The emission coefficient of the steam ejector can reach 0.3, its output gas volume can reach 18 tons per hour, can insinuate 0.9 steam up to 4.15 tons per hour, under normal production conditions, the steam ejector can provide steam consumption of 8 tons per hour, and the total amount of exhaust available per year can be as high as 17,100 tons, and according to the power generation signal to calculate, the annual steam ejector can generate 1.15 million kilowatts per hour, and the benefits are many.
       
The 0.2 MPa steam used to cook the noodles in the food factory is prepared by reducing the pressure and temperature of 0.9 MPa new steam. The fried noodles are heated with 0.9MPa steam, and the resulting high-temperature condensate and flash steam are discharged into the gutter, and the total heat energy loss is more than 30%. The heating system was modified to recover condensate and flash steam using a condensate recovery device in a steam ejector, and 0.9 MPa steam was used to educe condensate flash steam through a jet pump to 0.2 MPa for steaming flour silk. The condensate after depressurization is supplied to the bathroom. When the system is put into operation, the amount of condensate recovered is 2.00 t/h and the amount of flash steam recovered is 1.23 t/h.
       
It can be seen that the existence of steam ejectors allows petrochemical and food plants to reduce energy consumption and production costs in the process of operation.

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