Shallow geothermal application technology of passive building

Abstract

The invention discloses a shallow geothermal application technology of a passive building. The shallow geothermal application technology mainly includes preheating application and cooling application. A preheating process and a cooling process mainly include three steps: firstly, collecting outer air into an air inlet channel in the passive building, and filtering the collected air in the air inlet channel; secondly, transmitting the treated air into the passive building, and deeply burying the transmitted air into an underground ventilation pipeline, and preheating or cooling the air by the aid of formation depth and air temperature difference; thirdly, transmitting the treated air into an air supply pipeline distributed in the passive building, arranging a hot water heating coil or a direct evaporative cooler to treat the air again. According to the shallow geothermal application technology, structure is simple, the air in rooms is exchanged, the temperature of fresh air is adjusted, energy consumption is reduced, and the application technology has the advantages of low cost and energy consumption, wide application and the like in the use process.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to the shallow geothermal application technology of passive buildings. Background technique [0002] Xinjiang is a severely cold region, with a heating period of up to 6 months in winter (October 10 to April 10), while a cooling period of only 2 months in summer. As far as conventional buildings in severe cold areas are concerned, their heating energy consumption in winter (including fresh air energy consumption) is seven times that of summer cooling energy consumption, and fresh air energy consumption in winter accounts for 60% of the total heating energy consumption. [0003] Passive buildings, also known as passive low-energy buildings or passive houses, are currently the only state-of-the-art building energy-saving model that has been widely recognized by the government and the people. The heat transfer coefficient of the system, while adopting zero thermal bridge and high-pe...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem of high energy consumption for heating in passive buildings, and rely on technologies such as tunnel ventilation, fresh air heat recovery, and direct evaporative cooling without using mechanical heating or cooling. The requirement of indoor temperature of 25°C for buildings in winter and summer can ac

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