Distributed coal water slurry virtual central heat supply system and heat supply method

Abstract

The invention discloses a distributed coal water slurry virtual central heat supply system and a heat supply method. The heat supply system comprises a heat supply monitoring center, a plurality of coal water slurry boiler rooms under the centralized monitoring of the heat supply monitoring center, a coal water slurry storage and transportation center and a heat pipeline network; and the heat supply method comprises the following steps: firstly, acquiring field data of the coal water slurry boiler rooms and the coal water slurry storage and transportation center in real time, and uploading thedata synchronously; secondly, performing comprehensive treatment on all the uploaded field data by the heat supply monitoring center to generate a heat supply management plan and a coal water slurrydistribution plan which are downloaded to corresponding coal water slurry boiler rooms and the coal water slurry storage and transportation center synchronously and are monitored for alarm synchronously; and thirdly, generating an intraday coal water slurry distribution plan by the coal water slurry storage and transportation center according to the downloaded coal water slurry distribution plan,and generating an intraday heat supply running plan by the coal water slurry boiler rooms according to the downloaded heat supply management plan. The heat supply system has the advantages of high heat supply efficiency, less heat pipeline network investment, and strong overall flexibility and replicability, and the heat supply method has the advantages of centralized control, simple and convenient operation and good heat supply management effect.

Description

technical field [0001] The invention belongs to the technical field of central heating, and in particular relates to a distributed coal-water slurry virtual central heating system and a heating method thereof. Background technique [0002] At present, the heat source of the domestic centralized heating system mainly adopts two methods of heat and power cogeneration and regional boiler room, and the fuel is coal. [0003] The thermal efficiency of boilers for traditional central heating stations (regional boiler rooms) generally does not exceed 75%. Since the heat loss of the pipe network is different, according to the calculation, the actual heat loss of the primary network is 20% on average, and the actual heat loss of the secondary network is about 10%, so the actual average heat utilization rate from coal to users is 75%×80% x 90% = 54%. In addition, during operation, due to thermal imbalance, running water, poor heat preservation, etc., the actual system thermal effici...

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Problems solved by technology

[0004] In summary, although the two traditional heating methods can achieve the purpose of heating, they also have deficiencies to varying degrees, which are mainly manifested in: 1. The combustion method of coal-fired boilers is layer combustion, and the thermal efficiency is low; 2. 1. The transmission distance of the traditional central heating pipe network is long, and the heat loss is high; 3. There is pollution in the transportation of raw coal; 4. The pollution of traditional small coal-fired boilers is relatively serious during combustion because the quality of raw coal cannot be centrally controlled

In addition, in addition to coal-fired boilers, there are also heating boilers on the market that use natural gas, oil, electricity, and coal-water slurry as fuels. Among them, the first three fuels will not cause air pollution in cities due to centralized production and quality management. The pollution exceeds the standard, but for the coal-water slurry boiler, if there is no unified quality management, it may cause pollution to the city's air

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