Number of views: 865 Author: AILI Industrial Release time: 2027-02-12 Source: Ai Li Industrial
The panel display workshop air-conditioning box partitions should be determined based on the production layout, heat and moisture load distribution, return air path, exhaust and control independence. It is not advisable to divide the units into equal parts based on area in a large-area workshop. It should ensure that the processing tasks, air volume balance and maintenance impact of each partition have clear boundaries.
The loads in equipment-intensive areas and channel areas may be quite different, and the running times of different processes may not be consistent. If areas with different changes share a single return air measurement point, the average value may be normal but deviate locally. When zoning, it is also necessary to check whether the return air spans across zones and whether adjusting one zone will affect adjacent zones.
The spatial boundary should cover the process layout, partitions, return air paths and maintenance channels; the load boundary should cover equipment heating, moisture dissipation, exhaust and operating shifts; the control boundary should cover the representativeness of measuring points, independent adjustment and the scope of shutdown influence. The three types of boundaries correspond to different majors and cannot be divided evenly by area alone. How the circulating air handling unit bears the indoor load can be referred toWhat indoor loads should the circulating air handling unit be selected based on?。
The panel displays the equipment-intensive area, passage area, auxiliary area and storage area of the workshop. The heat and moisture load per unit area may vary greatly. The sensible heat load in the equipment-intensive area is high, the frequency of personnel movement and door opening in the passage area is high, and the auxiliary area may have independent exhaust or moisture sources. If the units are evenly allocated according to the total area, there may be insufficient processing in the equipment-intensive area and over-processing in the passage area.
How to check the sensible heat and moisture load of equipment, please refer toHow to check the sensible heat and moisture load of the equipment in the air-conditioning box of the advanced packaging workshop? . How to collect the environmental requirements of different process areas, please refer toWhat process environment requirements need to be collected for the air-conditioning box of semiconductor clean factory?。
Zoning not only separates the air supply ducts, but the return air paths must also correspond. If the return air of two zones is mixed in the ceiling or mezzanine, adjusting the air supply volume of one zone will affect the return air status of the other zone. The zoning design should confirm whether the return air branch, return air valve and return air measuring point are independent to avoid interference with each other despite the nominal zoning.
How to determine the ratio of fresh air to return air, please refer toHow is the proportion of new return air to the air-conditioning box determined by project requirements? . Mixing section length and airflow organization, please refer toHow long is the air mixing distance required in the mixing section of the air conditioning box? . Whether the return air measurement point can represent the service area, please refer toCan the air conditioning box return air measurement points represent all service areas?。
As the number of zones increases, control and adjustment become more flexible, but the number of units, air ducts and control systems also increases. If there are too few partitions, it is difficult to handle local load changes independently; if there are too many partitions, investment and maintenance costs will increase, and the backup strategy will become more complex. When determining the number of zones, load differences, control requirements and maintenance capabilities should be weighed.
How to collect operational continuity requirements, please refer toWhat process environment requirements need to be collected for the air-conditioning box of semiconductor clean factory? . Linkage and group control of multiple devices can be understoodFFU computer group control system .Supporting method of
Each unit should be able to correspond to the service area, design and low load status, as well as the interface with other equipment. After zoning adjustment, the air ducts, terminals and control points need to be rechecked, and the unit number cannot be changed. The evaluation of alternative options should also indicate what areas they can cover and at what level of operation.
The order of functional sections and air duct layout will change with the partition, please refer toOn what basis should the sequence of functional sections of the air conditioning box be determined? . How to write clearly the air volume distribution and pressure caliber, please refer toWhat is the difference between static pressure, total pressure and static pressure outside the air conditioner box? . How to describe the partition signal in the control point table, please refer toWhat point tables need to be provided before the air-conditioning box is connected to the building automation system?。
Aili Industrial can check the air-conditioning box and clean air supply matching according to the partition list. The project party provides the process plane and the working conditions of each zone, which makes it easier to form a traceable equipment configuration. Aili's industrial manufacturing end covers independent research and development and production of motors and fans, control systems, sheet metal, air filters and complete machine assembly. Zoned units, air duct interfaces and control points can be matched in the same package; non-standard air volume and zoned structure can be adjusted according to the on-site layout.
Product form can be viewedAir handling unit andFan box 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 confirmation; when it comes to gaseous pollution control, you can communicate separatelyChemical filter solutions. The specific zoning plan, unit performance and delivery scope still need to be verified based on the corresponding configuration data and on-site working conditions. The actual effect is subject to on-site air volume balance and performance test results.
Submit project parameters:https://ailigy.com/contactus.html
Can a large-area workshop divide the units evenly according to area?
Not recommended. The load difference between equipment-intensive areas and channel areas is large, and even division by area may lead to local under- or over-processing.
Does the return air need to be independent after partitioning?
need. When the return air paths are not independent, adjusting one partition will affect another partition, and the partition effect will be compromised.
Can Aili Industrial help check the zoning plan?
The zone unit configuration can be checked based on the process plane, load of each zone and return air path. The specific plan needs to be confirmed according to the project conditions.
What indoor loads should the circulating air handling unit be selected based on?
Can the air conditioning box return air measurement points represent all service areas?
Check items |
Confirm key points |
Check items |
Confirm key points |
|---|---|---|---|
space boundary |
Process layout, partitions and maintenance channels |
load boundary |
Equipment heating, moisture dissipation, exhaust and shifts |
control boundaries |
Measuring point representativeness, independent adjustment and shutdown effects |
Return air path |
Are branch circuits, dampers and measuring points independent? |
Number of partitions |
Load differences, control requirements and maintenance capabilities |
Service list |
Corresponding areas, working conditions and interfaces of the unit |
