Energy-saving fresh air system

A technology of fresh air system and fresh air duct, applied in ventilation systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problems of energy waste, no automatic adjustment of fresh air volume, etc., to avoid insufficient flow, stable and easy. Maintenance and energy consumption reduction effect

Pending Publication Date: 2018-05-15
核工业西南勘察设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing fresh air systems do not have the ability to automatically adjust the fresh air volume of the room according to the conditions of the room personnel during operation. The fresh air system can only be operated at full load according to the design conditions, resulting in a great waste of energy

Method used

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Examples

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Effect test

no. 1 example

[0032] At present, a small number of buildings solve the problem of fresh air energy consumption by adding intelligent control systems. The main method is to install sensors in the terminal room to obtain information such as PM2.5 and carbon dioxide content, control the opening of the terminal valve or tuyere, and control the inverter through the static pressure sensor installed on the fresh air main pipe to adjust the fan speed of the fresh air unit; When the terminal demand decreases, the static pressure on the main pipe increases, reducing the fan speed; thereby reducing the fan's energy consumption and cooling (heating) capacity. The main problems are: First, an automatic control system needs to be added, which is complex and expensive; second, because the system requires on-site installation and commissioning involving many related units, the probability of later problems is high and once the problems are found, they are prone to excuse each other. This method has not been...

no. 2 example

[0045] This embodiment provides an energy-saving fresh air system 10 whose basic structure, principle and technical effects are the same as those of the first embodiment. For a brief description, for parts not mentioned in this embodiment, please refer to the first embodiment Corresponding content.

[0046] participate image 3 An energy-saving fresh air system 10 provided by this embodiment includes a fresh air unit 100, a fresh air duct 200, a bypass mechanism 300, a terminal opening and closing mechanism 400, and an air inlet duct 500. The fresh air unit 100 has an air inlet end and an air outlet end, One end of the fresh air duct 200 is connected to the outlet end, the other end is connected to the end opening and closing mechanism 400, one end of the bypass mechanism 300 is connected to the end of the fresh air duct 200 close to the fresh air unit 100, and the other end is connected to the inlet end for The static pressure value of the fresh air duct 200 selectively connects...

no. 3 example

[0052] This embodiment provides an energy-saving fresh air system 10 whose basic structure, principle and technical effects are the same as those of the first embodiment. For a brief description, for parts not mentioned in this embodiment, please refer to the first embodiment Corresponding content.

[0053] See Figure 4 (The arrow in the figure indicates the direction of airflow). The energy-saving fresh air system 10 provided by this embodiment includes a fresh air unit 100, a fresh air duct 200, a bypass mechanism 300, a terminal opening and closing mechanism 400, and a ventilation chamber 600. The fresh air unit 100 has At the inlet and outlet ends, one end of the fresh air duct 200 is connected to the outlet end, the other end is connected to the end opening and closing mechanism 400, the end opening and closing mechanism 400 extends into the air change chamber 600, and one end of the bypass mechanism 300 is connected to the fresh air The pipe 200 is close to one end of the...

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Abstract

The invention provides an energy-saving fresh air system, and relates to a building internal air conditioning system which comprises a fresh air unit, a fresh air pipeline, a bypass mechanism and a tail end start-stop mechanism. The fresh air unit is provided with an air inlet end and an air outlet end. One end of the fresh air pipeline is connected to the air outlet end, the other end of the fresh air pipeline is connected to the tail end start-stop mechanism, one end of the bypass mechanism is connected to the end, close to the fresh air unit, of the fresh air pipeline, the other end of thebypass mechanism is connected to the air inlet end, and the fresh air pipeline and the air inlet end are selectively connected according to the static pressure value of the fresh air pipeline. Compared with the prior art, the energy-saving fresh air system is simple in structure, low in manufacturing cost, easy to popularize, stable, easy to maintain, and capable of greatly reducing fresh air energy consumption and saving energy.

Description

Technical field [0001] The invention relates to an air conditioning system in a building, in particular to an energy-saving fresh air system. Background technique [0002] Sending treated fresh air into the room is the main means to meet personnel hygiene requirements. There are clear regulations on the fresh air volume of various public and civil buildings in the code. Statistics show that the processing energy consumption of fresh air usually accounts for 30-40% of the annual energy consumption of the air conditioning system; reducing the energy consumption of fresh air is of great significance to the energy saving of the entire air conditioning system. [0003] The energy consumption of a fresh air system includes two aspects: the first is the energy consumption for cooling (heating), and the second is the energy consumption of the fan; and the energy consumption of the former is often much larger than the latter. Take the new fan unit of a certain manufacturer as an example: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F3/147F24F7/06F24F11/72F24F110/40F24F140/40
CPCF24F3/147F24F7/06
Inventor 王贺黄贵松周勇罗远廷洪伟洋张杉
Owner 核工业西南勘察设计研究院有限公司
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