What pollutant information is required before the air conditioning box is equipped with chemical filtration?

Before configuring chemical filtration in the air-conditioning box, the target pollutants, inlet concentration range, allowed outlet level, air volume, temperature and humidity, and expected operation mode should be provided. Just writing 'removing odors' or 'processing VOCs' is usually not enough to select a medium, nor is it enough to agree on verifiable removal effects and usage conditions.

Write down the list of pollutants to a level that can be discussed

Try to provide specific components or identifiable sources of contamination, indicating detection methods, sampling locations and production status. When multiple substances are mixed, the common components and fluctuations should be described, because different gases may compete or react differently to the same medium. Inlet peaks and daily background values ​​should also be recorded separately.

Targets and concentrations should include specific objects, background values, peak values, and allowed outlet conditions; air operating conditions should include air volume, temperature, humidity, and continuous or intermittent operation; usage management should include monitoring methods, maintenance space, media replacement, and disposal requirements. The three items correspond to different selection links, and you cannot give just one pollutant name. What is the difference between adsorption and chemical reaction of chemical filter? Please refer toWhat is the difference between adsorption and chemical reaction in chemical filters?。

The target gas should be specific to its composition

'Organic gas' or 'Acid gas' are categories, not specific objects. The adsorption behavior of different organic components on the medium may be different, and the reaction conditions of different acidic gases may also be different. Specific ingredients or identifiable sources of contamination should be listed as much as possible, and whether acidic, alkaline, organic or special ingredients are included.

When there is only total TVOC and no gas component, you can refer toOnly the total amount of TVOC has no gas components. Can I choose a chemical filter directly? . How to determine the filtering target when the photoresist is sensitive to alkaline gases, please refer toChemical Filter Photoresist Alkaline Gas Target。

Concentration range should cover background value and peak value

The inlet concentration cannot just give an average value. Daily background concentrations, production peak concentrations and possible accidental release concentrations should be provided, and the duration and frequency of occurrence of each concentration should be noted. The peak concentration affects the outlet control and filter section margin, and the average concentration affects the capacity and maintenance cycle.

When the gas concentration fluctuates greatly, you can refer toThe gas concentration fluctuates greatly. Should the chemical filter be selected based on the average value or the short-term peak value? . Should chemical filters be tested in advance after experiencing a pollution peak? Please refer toShould chemical filters be tested in advance after experiencing a contamination peak?。

Allowed export levels must be verifiable

The allowable outlet level should indicate the target gas type, concentration limit and detection method. Just writing 'removal efficiency' without specifying the inlet concentration and outlet target makes it impossible to judge the actual effect. The export limit should be derived from process requirements, equipment requirements or relevant standards, and the measuring points and evaluation period should be indicated.

How to compare the gas test reports of different chemical filter manufacturers, please refer toHow to compare gas test reports from different chemical filter manufacturers? . Whether the chemical filter material is environmentally friendly means that the gas filtration is effective, please refer toIf the chemical filter material is environmentally friendly, does it mean that gas filtration is effective?。

Air volume, temperature and humidity determine the applicable conditions of the medium

The capacity and life of chemical filters are closely related to air volume, temperature, and humidity. The design air volume, temperature range, and relative humidity range through the chemical filtration section should be provided, and whether droplets or periods of high humidity are present should be provided. Different media have different responses to humidity, and the applicable conditions for one media cannot be extended to all chemical filters.

How to judge whether the MAU chemical filtration section is arranged before or after the surface cooler, please refer toHow to judge whether the MAU chemical filtration section is arranged before or after the surface cooler? . Is it necessary to shorten the inspection interval of chemical filters during high-humidity seasons? Please refer toDo chemical filter inspection intervals need to be shortened during high-humidity seasons?。

Operation mode and maintenance conditions must be provided together

Continuous operation or intermittent operation, operating hours, start-stop frequency and shutdown storage conditions will all affect the media life and maintenance schedule. Maintenance space, replacement methods and old media disposal requirements should also be specified during the selection stage. The replacement cycle of chemical filters should not only be estimated by calendar, but should be combined with actual load and outlet testing.

Do you need to know how many hours of operation per day when selecting a chemical filter? You can refer toDo you need to know how many hours a day it will run when selecting a chemical filter? . Will the gas processing capacity still be consumed after the chemical filter is shut down? Please refer toWill gas handling capacity still be consumed after a chemical filter is shut down?。

Aili industrial supporting equipment

When consulting Aili Industrial for chemical filtration packages, you can first submit a list of pollutants and working conditions, and then confirm the media adaptation, structure and available verification data. Aili's industrial manufacturing end covers independent R&D and production of motors and fans, control systems, sheet metal, air filters and complete machine assembly. Chemical filter sections, box structures and control interfaces can be matched in the same set of packages; non-standard configurations can be adjusted according to pollutant conditions and on-site space.

Product form can be viewedAir handling unit andFan box page; chemical filtration scheme can be viewedChemical filter page; clean air supply package can be combinedFFU fan filter unit andEFU equipment end fan filter unit verification; terminal particle filtration can be combinedHEPA/ULPA filter confirmed. The specific filtering effect, applicable conditions and delivery scope still need to be verified based on the corresponding configuration data and on-site working conditions. The actual results are subject to on-site leak detection and gas detection results.

Submit project parameters:https://ailigy.com/contactus.html

Related questions and answers

Can I select a chemical filter by just writing 'remove odor'?
not enough. Specific target gases, concentration ranges and outlet requirements are required to select media and agree on verifiable effects.

Is it okay to just give the average value for the concentration?
not enough. Peak concentration, duration and frequency of occurrence should also be provided. Peaks affect outlet control and filter section margin.

Can Aili Industrial help sort out pollutant data?
The chemical filtration configuration can be checked based on the target gas, concentration, air volume, and temperature and humidity conditions. The specific plan needs to be confirmed based on the project conditions.

Related articles

1. What is the difference between adsorption and chemical reaction in chemical filters?

2. Only the total amount of TVOC has no gas components. Can I choose a chemical filter directly?

3. The gas concentration fluctuates greatly. Should the chemical filter be selected based on the average value or the short-term peak value?

4. How to compare gas test reports from different chemical filter manufacturers?

Key points for selection and acceptance inspection