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Time-sharing and zone-complementary intermittent heating method for school district heating system

A technology for district heating and schools, applied in heating systems, household heating, heating methods, etc., can solve problems such as boiler efficiency decline and coal consumption increase, and achieve the effects of reducing load, reducing pollutant emissions, and ensuring load

Active Publication Date: 2021-12-10
TIANJIN UNIV +1
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  • Abstract
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Problems solved by technology

(4) In terms of economy, the coal consumption of the unit increases significantly when the unit is running at low load, while the boiler efficiency decreases significantly when the unit is under 50% of the rated load

Method used

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  • Time-sharing and zone-complementary intermittent heating method for school district heating system
  • Time-sharing and zone-complementary intermittent heating method for school district heating system
  • Time-sharing and zone-complementary intermittent heating method for school district heating system

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specific Embodiment approach

[0089] Specifically, taking the district heating system of a certain campus in Tianjin as an example, a time-sharing and zone complementary intermittent heating mode suitable for energy saving in winter vacations of the school district heating system is implemented as follows:

[0090] 230,000 m of an energy station in a university 2 , There are five basic types of building users in the areas controlled by the gas boiler direct supply system: scientific research offices, student dormitories, canteens, undergraduate teaching buildings and experimental workshops. The energy station implemented the first phase of energy-saving transformation in the 2019-2020 heating season, and has realized the intelligent control of the low area and its 28 building thermal entrances (the proportion of uncontrolled entrance load is 18.9%). The energy-saving management and control based on hierarchical, time-sharing and zoning is adopted. Based on the measurement of water and electricity meters in...

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Abstract

The invention discloses a time-sharing and zone-complementary intermittent heating method suitable for school regional heating systems. Through the time-sharing zone-intermittent heating of different levels of users, using the complementarity of different types of user loads in time and space, based on intelligent management and control, Fully considering the thermal inertia of the thermal system and the building (thermal inertia, heat storage characteristics), the ultra-low-load heating of the building can be achieved on the premise of ensuring the safety of the system and the quality of heat supply, while ensuring the basic stability of the energy center's operating load. It is conducive to the safe and stable operation of the primary network and the main equipment of the energy center, such as boiler water pumps, etc., realizes ultra-low load operation of the thermal system, ensures that the heat demand is met, and at the same time significantly saves energy and reduces emissions, and operates safely and stably. It is suitable for schools, commercial office areas, enterprise units and other public buildings during the long holiday period. The central heating system energy station is a safe and stable high-efficiency and energy-saving operation mode with ultra-low load.

Description

technical field [0001] The invention relates to the technical field of central heating, in particular to a time-sharing and zone complementary intermittent heating method suitable for school district heating systems. Background technique [0002] Central heating is the most common form of heating in northern my country. Precise heating on demand is the basic path to ensure the heating comfort of users while achieving significant energy saving and emission reduction. Based on the deep coupling of information and energy systems, the smart heating network can give full play to its intelligent control function, which can well meet the various heat needs of users, and at the same time avoid energy waste caused by excessive heating. [0003] Central heating systems usually include multiple types of users, and there are large differences in heat consumption patterns. Even the same user types have different heat consumption requirements. Many studies have shown that the time-shari...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24D19/10
CPCF24D19/1009
Inventor 杨俊红史鑫钰刘德朝崔棉善
Owner TIANJIN UNIV
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