Fresh air control system

A control system and fresh air technology, applied in the control field, can solve problems such as unpredictable fresh air demand, and achieve the effects of avoiding blind ventilation, saving energy and improving ventilation efficiency.

Active Publication Date: 2021-10-01
TSINGHUA UNIV +1
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Problems solved by technology

And almost all of the current CO-based 2 Concentration indoor air quality control strategies are all driven by concentration or concentration increments, in CO 2 When the concentration exceeds the limit value or has a tendency to exceed the limit value, the fresh air is turned on to improve the indoor air quality, and the specific demand for fresh air is not estimated

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Embodiment Construction

[0049] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0050] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0051] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to a fresh air control system. The fresh air control system comprises a monitoring module arranged in a target building space and used for monitoring the concentration of carbon dioxide in the target building space, a ventilation module used for ventilating the target building space and a control module electrically connected to the monitoring module and the ventilation module; the control module is used for acquiring first concentration information of carbon dioxide obtained by the monitoring module in a first time period; the carbon dioxide equilibrium concentration of the target building space in the first time period is determined by using second concentration information in a concentration reduction stage in the first concentration information; a target air volume is determined by using the carbon dioxide equilibrium concentration; and the ventilation module is controlled to ventilate the target building space by using the target air volume. By means of the system, on-demand ventilation of the target building space can be achieved, the ventilation efficiency is improved, ventilation is conducted after the target air volume is determined, local conditions can be adjusted, blind ventilation is avoided, and energy is saved.

Description

technical field [0001] The present disclosure relates to the technical field of control, in particular to a fresh air control system. Background technique [0002] carbon dioxide CO 2 Concentration is an important physical parameter index to measure indoor air quality, because it can represent the concentration level of most other pollutants. Indoor CO 2 The concentration is mainly affected by two factors: indoor personnel breathing and indoor and outdoor ventilation. For most public buildings, indoor air quality control is not based on environmental parameters, and building operation and maintenance personnel only set the fresh air supply size based on experience or on-site feedback. And almost all of the current CO-based 2 Concentration indoor air quality control strategies are all driven by concentration or concentration increments, in CO 2 When the concentration exceeds the limit value or tends to exceed the limit value, the fresh air is turned on to improve the ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/04F24F11/64F24F11/70F24F11/74F24F11/89F24F110/70F24F120/10
CPCF24F7/04F24F11/64F24F11/70F24F11/74F24F11/89F24F2110/70F24F2120/10Y02B30/70
Inventor 洪家杰林波荣尹杰周浩余娟朱嘉俊俞文杰
Owner TSINGHUA UNIV
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