Indoor air tightness detection method of residential building

An air-tightness detection and residential building technology, which is applied in the direction of using liquid/vacuum for liquid-tightness measurement, and by measuring the fluid's acceleration and deceleration rate, etc., can solve the problem that building air-tightness detection cannot be directly used.

Inactive Publication Date: 2018-04-27
天津生态城绿色建筑研究院有限公司 +1
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Therefore, Germany's advanced testing methods and airtightness stand...

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  • Indoor air tightness detection method of residential building
  • Indoor air tightness detection method of residential building
  • Indoor air tightness detection method of residential building

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[0035] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] A method for detecting indoor air tightness of a residential building, comprising the following steps:

[0038] A. First, close and block all the doors, windows, pipes, and ventilation holes in the room that are connected to the outside world. The doors and windows (doors and windows that are not connected to the outside) in the test area are fully opened, and the ventilation equipment is turned off at the same time, and the water from the indoor drainage system is drained. The sealing pipe should be filled with water, and the floor area, volume and surface area of ​​the room should be measured;

[0039] Use sealing tape to seal, seal all ventilation holes leading to the outside ...

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Abstract

The invention provides an indoor air tightness detection method of a residential building. The method comprises the following steps of closing and plugging all doors and windows, pipelines and ventilation holes connected to the outside world in a room, completely opening the doors and windows in a test area and measuring a room floor area, a volume and a surface area; installing a draught fan in adoor opening and sealing; through the draught fan, pressurizing the room, measuring air quantity conveying data under each pressure grade, and taking an average air exchange rate value when differential pressure is 50Pa as a measurement standard of building air penetration performance; calculating a draught fan air compensation amount and a room penetration air exchange frequency; and according to an air tightness evaluation index, determining indoor air tightness of the residential building. The method has advantages that the method is suitable for air tightness detection of various kinds ofdomestic single-family buildings; the draught fan is used to pressurize a single-family room, and after a pressure difference of internal and external portions of the room is generated, a hot-wire anemometer is used to test a wind speed at a room draught fan air outlet; and according to a condition that a room air compensation amount equals to a penetration air quantity, an air penetration amountin the room is calculated and acquired.

Description

technical field [0001] The invention belongs to the field of building energy conservation, and in particular relates to a method for detecting indoor air tightness of a residential building. Background technique [0002] Building air tightness is an important factor affecting building heating energy consumption and air conditioning energy consumption. The air infiltration of the building mainly comes from the loose holes in the ground floor doors, external doors and windows, and the outer enclosure structure. During the heating season or air-conditioning season, due to the indoor and outdoor temperature difference, air infiltration will increase the heating load or air-conditioning load. Building air tightness is an important factor affecting building heating energy consumption and air conditioning energy consumption. Indoor and outdoor air can be exchanged directly through the gaps in doors and windows. In the heating season or air conditioning season, due to the temperatu...

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 郭而郛倪海峰邹芳睿惠超微周敏陈曾王辰萌陈志国曾旭梁衡郑立红李倩李宜枫
Owner 天津生态城绿色建筑研究院有限公司
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