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Intelligent fresh air control device

A control device, a technology for fresh air, applied in heating and ventilation control systems, space heating and ventilation, heating and ventilation safety systems, etc. and other problems, to achieve the effect of improving indoor air quality, ensuring air quality requirements, and saving space in the computer room

Inactive Publication Date: 2010-07-07
CHONGQING UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

The main disadvantages of this system are: one more fresh air system than the original air-conditioning system, which makes the system structure complex and increases the cost; in addition, more fresh air ducts should be reserved for the building structure, which increases the complexity of the building and affects the beauty of the building, making it inconvenient to promote and use; In addition, the fresh air volume can only be adjusted to improve indoor comfort, and the fresh air volume cannot be adjusted according to the combination of indoor temperature, humidity and carbon dioxide, which cannot guarantee health requirements
The main disadvantages of this device are: complex structure and high cost; the fresh air adjustment door is installed in the housing, and the fresh air volume can only be adjusted manually, which is inconvenient to operate and increases the difficulty of installation and maintenance; The space occupied by the central air-conditioning system has higher requirements for buildings; in addition, it can only ensure indoor comfort, but cannot guarantee indoor air health requirements

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0056] Such as figure 1 As shown, an intelligent fresh air control device for large public buildings mainly includes a temperature and humidity sensor 1, a carbon dioxide concentration sensor 2, an electric valve 3, and a calculation controller 5.

[0057] Two commercially available DS air duct temperature and humidity sensors 1 and two commercially available TT-GMT220 carbon dioxide concentration sensors 2 are respectively installed at the entrance of the fresh air duct and the return air duct of the original central air-conditioning system; 2 commercially available The D971X electric valve 3 is installed in the fresh air duct and return air duct of the original air conditioning system respectively. The temperature and humidity sensor 1, the carbon dioxide concentration sensor 2 and the electric valve 3 are all connected to the calculation controller 5 through the data connection line, and the electric valve 3 is also connected to the control box through the circuit line. Co...

Embodiment 2

[0059] Such as figure 1 As shown, a kind of intelligent fresh air regulator for residential buildings, with the same embodiment 1, is characterized in that: the calculation controller 5 is a commercially available (manufacturer customized) single-chip microcomputer for the calculation and comparison of the loading enthalpy value and the comparison program of the carbon dioxide concentration, placed in the Next to the indoor air conditioner.

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Abstract

The invention discloses an intelligent fresh air control device, which relates to a fresh air conditioning device of an air conditioning system. The intelligent fresh air control device mainly comprises a temperature humidity sensor, a carbon dioxide concentration sensor, a computer controller, an electrically operated valve and the like. The intelligent fresh air control device has the characteristics of intelligent control, convenient use, accurate control, energy-saving operation, small volume and low cost. And the intelligent fresh air control device also has the characteristics of improving the indoor air quality and meeting requirements of people for the indoor comfort and health. The intelligent fresh air control device can be widely applied to the air conditioning systems of various buildings such as residences, hotels, public buildings and the like and is the fresh air device which is controlled intelligently and saves energy.

Description

1. Technical field: [0001] The invention belongs to the technical field of air conditioning for building ventilation, in particular to a fresh air regulating device for an air conditioning system. 2. Background technology: [0002] With the development of the economy and the improvement of living standards, people have higher and higher requirements for air quality. Since people spend nearly 90% of their time indoors, indoor air quality has a very important relationship with human health, and the indoor fresh air volume is an important factor in determining indoor air quality. However, with the use of air conditioners, the problem of indoor air pollution is becoming more and more serious, and more and more people pay more and more attention to it. [0003] In addition, according to incomplete statistics, my country's building energy consumption has reached 27.5% of the total energy consumption, and this figure will continue to increase with the rapid development of my count...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/02
CPCY02B30/78Y02B30/94Y02B30/70
Inventor 丁勇李百战刘红刘猛李楠苏莹莹喻伟张立文
Owner CHONGQING UNIV
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