A steam boosting heat supply method suitable for cogeneration units
A unit and steam technology, applied in steam central heating systems, steam superheating, heating methods, etc., can solve problems such as high electricity cost, insufficient steam pressure, and inflexible adjustment, so as to improve comprehensive energy utilization efficiency and reduce operation cost effect
Active Publication Date: 2022-04-22
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology
[0004] Due to the insufficient steam pressure and inflexible adjustment provided by the pure condensing steam turbine, the existing equipment cannot meet the actual use requirements of each user, and the high cost of electricity is not conducive to long-term use
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0040] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intervening element at the same time. When an element is said to be "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present.
[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as c...
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The invention discloses an electric-driven steam boosting heat supply method suitable for an electric cogeneration unit. The electrically driven steam boosting heating method suitable for an electric cogeneration unit includes the following steps: S101: unit initialization; S102: unit Power-connected operation; S103: Adjust the exhaust steam pressure in the medium pressure cylinder; S104: Remove the accumulated water in the channel; S105: Adjust the steam supply pressure; S106: Adjust the heating temperature; S107: Maintain the total amount of circulating working fluid in the thermal system of the generating set No change; S108: Pause steam output; S109: Close all valves; S110: Turn off heat supply. The power supply of the driving motor comes from the generator of the unit, which reduces the operating cost of the combined heat and power unit purchasing electricity from the grid; the frequency converter has the function of variable speed adjustment for the driving motor, so that the driving motor can run at the best efficiency condition; the invention has The function of comprehensive energy utilization efficiency of the unit has been improved.
Description
technical field [0001] The invention relates to the technical field of heat supply and power generation and its control analysis, in particular to an electric-driven steam boosting heat supply method suitable for electric cogeneration units. Background technique [0002] On January 5, 2017, the State Council issued the "13th Five-Year" Comprehensive Work Plan for Energy Conservation and Emission Reduction" Guofa [2016] No. 74, which proposed to optimize the industrial and energy structure, reduce the consumption of scattered coal and fuel oil; strengthen the main pollutants Reduce emissions, accelerate the development of combined heat and power and central heating, use existing cogeneration units, pure condensing power units and low-grade waste heat around cities and industrial parks to implement heating transformation, and eliminate coal-fired boilers within the scope of heat supply and gas supply (Kiln) and a series of requirements. [0003] In response to the requirement...
Claims
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IPC IPC(8): F24D1/06F24D1/08F24D19/10F22G1/16F22G5/12F01D15/10F01K11/02F01K13/00F01K13/02F01K17/02
CPCF24D1/06F24D1/08F24D19/1003F22G1/165F22G5/123F01D15/10F01K11/02F01K13/003F01K13/02F01K17/025Y02E20/14
Inventor 文立斌
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD