Recovery system and recovery method of residual pressure and residual heat in backpressure heat supply unit
A heating unit and recovery system technology, applied in heat recovery systems, steam recovery, heat exchangers, etc., can solve the problems of water and heat loss, white smoke, pressure energy waste and other problems in the thermal system, and achieve the reduction of reclaimed water and The effect of heat loss, elimination of white smoke, and beautification of the production environment
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[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0015] see figure 1 , the present invention includes No. 1 valve 1, No. 2 valve 2, No. 3 valve 3, No. 4 valve 4, No. 5 valve 5, No. 6 valve 6, No. 7 valve 7, back pressure steam turbine 8, external network heating device 9. Steam jet pump 10, regulating valve 11, deaerator 12, drain tank 13, drain expander 1, regular blowdown expander 15, main pipeline 16 and bypass pipeline 17.
[0016] The exhaust port of the back pressure steam turbine 8 is connected to the deaerator 12 through the main pipeline, and the first valve 1, the steam injection pump 10 and the second valve 2 are installed in sequence on the main pipeline 16. Wherein, both the inlet and the outlet of the steam jet pump 10 are connected with the main pi...
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