Low-pressure steam system

Abstract

The utility model discloses a low-pressure steam system, and belongs to the field of low-pressure steam systems, the low-pressure steam system comprises a low-pressure steam generator, a steam outlet pipe of the low-pressure steam generator is connected with an electric pressure reducing and temperature reducing valve, and a water inlet pipe of the low-pressure steam generator is connected with a circulating water tank through a water feeding pipe and a circulating pump; a condensing pipe is arranged between the water inlet pipe and the water feeding pipe, a condensing box wraps the condensing pipe, the inlet end of the condensing box is connected with a steam recovery pipe, and the outlet end of the condensing box is connected to the inlet end of the circulating water tank through a condensed water collecting pipe. According to the low-pressure steam system, through the nested design of the steam recovery pipe and the condensation box, cascade heat utilization of waste steam, condensate water and inlet water is achieved, the heat loss bottleneck of a traditional open type system is broken through, meanwhile, multi-parameter feedback control of pressure, temperature and flow is integrated through the electric pressure reduction and temperature reduction valve, manual valve operation is replaced, and the energy consumption is reduced. And the problem of unstable steam quality caused by process fluctuation is solved.

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