Fresh air system of air conditioner and calibration method for carbon dioxide sensor
A carbon dioxide and fresh air system technology, applied in instruments, scientific instruments, high-efficiency adjustment technology, etc., can solve problems such as inaccurate detection results of carbon dioxide sensors
Active Publication Date: 2019-09-20
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1
View PDF7 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problem of inaccurate detection results of the carbon dioxide sensor of the existing air-conditioning fresh air system, the present invention provides a calibration method for the carbon dioxide sensor of the air-conditioning fresh air system, the carbon dioxide sensor It is used to detect the concentration value of carbon dioxide in the indoor air; the air-conditioning fresh air system includes a first standard gas tank and a first control valve connected to each other, and when the first control valve is opened, the carbon dioxide in the first standard gas tank can Standard gas blows to described carbon dioxide sensor; Described calibration method comprises the following steps:
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] Those skilled in the art should understand that the embodiments in this section are only used to explain the technical principle of the present invention, and are not used to limit the protection scope of the present invention. For example, the air-conditioning fresh air system of the present invention can be a device, device or system used solely for ventilation, or it can be a device, device or system attached to an air conditioner (with cooling and / or heating functions). Technicians can make adjustments as needed so as to adapt to specific application occasions, and the adjusted technical solution will still fall within the protection scope of the present invention.
[0030] It should be noted that, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. Terms indicating directions or positional relationships are based on the directions or positional relationships shown in the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention, which belongs to the field of air conditioning fresh air systems, particularly provides a fresh air system of an air conditioner and a calibration method for a carbon dioxide sensor, thereby solving a problem of an inaccurate detection result of the carbon dioxide sensor of the existing air conditioner fresh air system. The provided fresh air system comprises a first standard gas tank and a first control valve that are connected to each other. When the first control valve is opened, standard gas in the first standard gas tank can be blown to the carbon dioxide sensor. In addition, the calibration method includes the following steps that: the first control valve is switched to be in an open state; after a first preset period of time of switching to the open state by the first control valve, the carbon dioxide sensor detects the concentration value of the carbon dioxide; and the detected concentration value is replaced by a first standard value. According to the calibration method, a phenomenon of serious drift of the carbon dioxide sensor with time passage can be avoided effectively, so that the high accuracy of the detection result of the carbon dioxide sensor is ensured effectively.
Description
technical field [0001] The invention belongs to the field of air-conditioning fresh air systems, and specifically provides an air-conditioning fresh air system and a calibration method for a carbon dioxide sensor thereof. Background technique [0002] The main function of the air-conditioning fresh air system is to realize the circulation and ventilation between the room air and the outdoor air, and to purify the air. The turbid air in the room is discharged to the outside through the air-conditioning fresh air system pipe to form an indoor and outdoor air pressure difference, completing the indoor and outdoor air exchange and refreshing the air. [0003] In order to avoid energy waste, the existing air-conditioning fresh air system is usually provided with a carbon dioxide sensor for detecting the concentration of carbon dioxide in the indoor air. Only when the indoor carbon dioxide concentration is greater than the set threshold, the fresh air system is turned on to venti...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N33/00
CPCG01N33/0006Y02B30/70
Inventor 于洋
Owner QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD