Design method for circulating air volume of clean room

A design method and technology of circulating air volume, applied in design optimization/simulation, calculation, energy-saving calculation, etc., can solve problems such as energy waste, difficult specification requirements for clean rooms, etc., achieve accurate design, avoid insufficient circulating air volume, and avoid errors

Pending Publication Date: 2021-07-23
上海艾正系统集成有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0037] Therefore, when designing a clean room, it is necessary to calculate the circulating air volume of the clean room to meet the above-mentioned requirements of the clean room. At present, the design of the circulating air volume of the clean room is based on empirical values. value, this value is an empirical value, and there is a large error with the actual demand, so it is difficult for the clean room to fully meet the specification requirements, and it is easy to cause energy waste

Method used

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  • Design method for circulating air volume of clean room
  • Design method for circulating air volume of clean room
  • Design method for circulating air volume of clean room

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Embodiment

[0119] Embodiment: a kind of design method of clean room circulating air volume, concrete steps are as follows:

[0120] Step 1: Check the clean room design manual GB 50019-2015 to query the meteorological parameters outside China's major cities or measure the outdoor temperature to obtain the outdoor dry bulb temperature DB (°C) of the clean room in summer and winter, and use the obtained outdoor dry bulb temperature of the clean room Fill in the temperature data in the form, such as image 3 , Figure 6 shown;

[0121] Step 2: Calculate the area and volume of the clean room, fill the table with the obtained clean room size parameters, such as image 3 , Figure 7 Shown:

[0122] Clean room bottom area: length × width (m 2 );

[0123] Clean room volume = clean room bottom area × clean room height (m 3 );

[0124] Surface area of ​​clean room = length × height × 2+ width × height × 2+ length × width × 2(m 2 );

[0125] Step 3: Determine the number of circulating air ...

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Abstract

The invention discloses a design method for circulating air volume of a clean room, which comprises the following steps of: firstly, acquiring outdoor dry-bulb temperature DB of the clean room in summer and winter, then calculating the area and the volume of the clean room, and determining the air exchange frequency of circulating air in the clean room according to the cleanliness grade of the clean room; superposing personnel sensible heat, compartment sensible heat, introduced external air sensible heat and permeation sensible heat to obtain indoor total sensible heat, calculating theoretical circulating air volume in a clean room and required air volume for overcoming indoor sensible heat, and comparing the theoretical circulating air volume with the required air volume for overcoming the indoor sensible heat; the obtained clean room circulating air volume can meet the requirement that the pressure of the clean room is larger than the outdoor pressure, pollution particles are prevented from entering the clean room to cause pollution, the fresh air volume needed by indoor personnel can also be met, it is guaranteed that the clean room circulating air volume is designed accurately, and the air quality is improved. And the condition of insufficient circulating air volume or energy waste is avoided.

Description

technical field [0001] The invention relates to the technical field of clean room design, in particular to a design method of circulating air volume in a clean room. Background technique [0002] Psychometric Chart is a science of studying humid air. It is a chart used to study the thermodynamic properties, physical properties and water vapor mixture of air. It has the function of analyzing the change process of humid air in various states. It can directly analyze the change process of various humid air after adjustment, and can be used as the analysis and application of heat and heat flow in HVAC engineering. [0003] Air is a mixture of various gases such as nitrogen, oxygen, argon, and carbon dioxide, as well as water vapor. It is the most important medium for transferring heat and cold. All air conditioning processes are a mixture of dry air and water vapor. The process of state change, especially the relationship between air conditioning and refrigeration engineering (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F16/245
CPCG06F16/245G06F30/20Y02D10/00
Inventor 张照民鲁莹
Owner 上海艾正系统集成有限公司
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