Heat supply energy saving system for hot press

Abstract

The invention discloses a heat supply energy saving system for a hot press. The heat supply energy saving system comprises a steam turbine, a unit steam condenser, a hot well, a heat supply network steam condenser and the hot press; the hot well is provided with the unit steam condenser; the hot press is arranged between the steam turbine and the unit steam condenser and is connected with the heat supply network steam condenser; the heat supply network steam condenser is connected with the hot well; steam discharged by the hot press enters the heat supply network steam condenser through a pipeline; and condensed water of the heat supply network steam condenser is recycled by the hot well through a pipeline. By using the heat supply energy saving system, the cold side loss of a power plant is reduced to the maximum extent and is even completely eliminated, and meanwhile, the heat supply quantity can be multiplied at most; not only are the problems that high-quality steam is consumed and the coal consumption is increased when the heat supply energy saving system operates under a low-load variable working condition solved, but also the problem of heat supply capacity insufficiency caused by urban expansion is solved; heat in waste steam is recovered, the thermal efficiency of a unit is increased, and the coal consumption for power generation is reduced; and the heat supply energy saving system is safe and maintenance-free.

Description

technical field [0001] The invention relates to the technical field of water cooling units in thermal power plants, in particular to a heat supply and energy saving system for a hot press. Background technique [0002] At present, most of the heating units in China mainly use the steam extraction of steam turbines to supply heat, and the operation mode of the units is based on electric constant heat, and the units are often in the operation mode of low load and variable working conditions, which causes the steam extraction volume of the steam turbine to change accordingly. In the severe cold period, it is often impossible to guarantee the user's heat load demand. Moreover, in order to ensure the heating load of some heating units, they have to use a steam source whose parameters are much higher than that of the heating extraction steam to ensure the heating load, which not only increases the operating cost, but also does not meet the national energy conservation and environm...

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Problems solved by technology

[0009] c. The loss of exhaust steam at the cold end of the thermodynamic cycle

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