Building capable of avoiding cross infection through indoor foul air control

Abstract

The invention discloses a building capable of avoiding cross infection through indoor foul air control. The building comprises a sealed heat preservation room body, an air supply system, an air exhaust system, a ventilation heat recovery system, an environment source heat exchange system and a refrigerating and heating system; one or more personnel gathering belts are distributed in the sealed heat preservation room body; the air supply system comprises a fresh air supply end communicating with an indoor space; the air exhaust system comprises a foul air receiving end communicating with the indoor space; and the refrigerating and heating system comprises an indoor refrigerating and heating device and a fresh air refrigerating and heating device, wherein the indoor refrigerating and heating device is used for refrigerating and heating air in the sealed heat preservation room body to the set indoor ideal temperature, and the fresh air refrigerating and heating device is used for refrigerating and heating fresh air supplied by the air supply system to the range lower than the set indoor temperature limit value. Foul air and fresh air released in the technology cannot be crossed or mixed, and therefore indoor cross infection can be avoided.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a building that avoids cross-infection through indoor turbid air control. Background technique [0002] About Passive House [0003] Professor Adamson of DeLong University in Sweden and Dr. Fest of Germany first proposed the concept of passive house in 1988. properties to maintain a comfortable interior thermal environment for the building. In 1991, the first "passive house" was built in Darmstadt, Germany. Then Dr. Fest established the "Passive House" Institute (PHI) in Darmstadt, Germany in 1996. In 2015, the German Passive Research Center further improved the certification standards for passive houses, which are divided into three levels: "Classic", "Plus" and "Premium". The latest 2020 version of Germany's "Building Energy Law" stipulates that there are three requirements for near-zero energy buildings: 1) The energy consumption of heating, cooli...

AI Technical Summary

Problems solved by technology

[0011] To sum up, there are still the following technical problems in the dilution ventilation of traditional passive houses and the existing fresh air integrated replacement ventilation: (1) The ventilation methods of upward feeding to upper row and upper sending to lower row will cause air turbulence, which can only dilute indoor ventilation. It is unavoidable to mix dirty air with fresh air and stay indoors; (2) Sending hot air at the bottom of the room in winter will cause indoor air to mix, prolong the stay of dirty air indoors, and cause cross-contamination; (3) If high-speed bottom air is used The air supply method will cause indoor air turbulence and fresh air and dirty air to mix; (4) The surface material of the ceiling generally has a high thermal conductivity, the aluminum alloy panel is 230W / (m·K), the concrete floor is 1.5W / (m·K), Gypsum board 0.3W / (m·K), insulating gypsum 0.07W / (m·K), cork 0.05W / (m·K), when the hot air is cooled by the ceiling and sinks, the hot air cannot be discharged quickly , causing cross-contamination; (5) For large open spaces, the distance between the air outlet and the discharge port is too far, and the "person-to-person" mode of blowing from one person to the next is prone to occur midway, resulting in cross-contamination

(6) The traditional displacement ventilation adopts the air flow mode of sending from the bottom to the top, and the air is supplied at a low wind speed, which is conducive to the replacement of indoor air quality, but there is a risk of "person-to-person" in large spaces

[0012] Another common building envelope (see Figure 4 ) has no requirements for air tightness and high thermal insulation, and the surface material has high thermal conductivity, so it is difficult to meet the implementation of displacement ventilation

[0013] When the passive house needs a heat source in winter, the existing technology usually uses a fresh air cooling and heating machine to send hot air, which makes it impossible to realize the replacement ventilation of the passive house

Therefore, there is no passive house that adopts the displacement ventilation mode in the prior art

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