Method for controlling steam supply pressure of heat supply network of thermal power plant
A technology of a thermal power plant and a control method, which is applied in the field of steam supply pressure control of a thermal power plant heating network, can solve problems such as low-flow erosion of valve cores, achieve low-flow erosion reduction, stable control, and flexible operation modes Effect
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[0033] In the present invention, two heating units are set to supply steam to the heating network through two regulating valves. In order to solve the disadvantages of the prior art, the steam supply of the two units has a primary or secondary or sequence, and a main control and auxiliary control control method is proposed. .
[0034] The steam inlet regulating valve of the sub-cylinder is set as one main control automatic and one auxiliary control automatic. The main control and auxiliary control regulating valves can be set freely.
[0035] When the steam consumption on the user side is low, the steam consumption of the user can be met by adjusting the main control valve, and the pressure of the sub-cylinders can be kept stable.
[0036] When the steam consumption on the user side increases, the opening of the valve is adjusted through the main control to keep the pressure of the sub-cylinder stable. Such as figure 2 As shown, when the steam consumption on the user side ...
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