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The entrance of some clean workshops needs to be connected to the changing area, clean operating area or other designated passages. The conventional straight-through double-door structure may be difficult to adapt to the on-site layout. The three-door air shower provides structural configuration space for traffic routes in different directions by adding a doorway.
The three-door structure does not mean that the three doors can be opened at the same time, nor does it mean that areas with different cleanliness levels can be directly shared. When designing, it is necessary to clarify the areas connected by each door, the direction of personnel passage, and the conditions for allowing opening, and then determine the corresponding interlocking and blowing procedures.
site conditions |
layout concerns |
Information required |
Plan verification direction |
|---|---|---|---|
Between the changing area and clean area |
Door position and area connection |
Floor plan and personnel traveling direction |
Determine the purpose of the three doors |
Multi-directional personnel access |
Access routes and interlocks |
The connecting areas and allowed routes of each door |
Check gating logic |
Non-standard entrance renovation |
Existing partition walls and door openings |
Door opening size and finished surface location |
Coordinated installation interface |
Connecting different management areas |
Blowing and permission control |
Cleanliness and management requirements for each area |
Confirm control plan |
Compare items |
Three-door air shower |
Corner air shower room |
|---|---|---|
Door configuration |
Set up three doorways and define the purpose of each door according to the project |
Diversion is usually achieved through two doorways |
Design focus |
Multi-route access, door interlocking and authority control |
The entry and exit directions match the on-site corner space |
control requirements |
It is necessary to clarify the opening conditions between different doors |
Set up control procedures around designated entry and exit routes |
Selection basis |
Regional connection relationships, allowed routes and personnel management |
Channel direction, installation space and personnel passage |
The number of doors is a structural condition, and the access route and gate control logic determine how the equipment is used. Please refer to the door position relationship of the corner air shower room. Corner air shower room to understand.
Features |
Specific instructions |
|---|---|
Door positions are configured according to layout |
Determine the layout direction of the three doorways based on the location of adjacent areas and personnel movement lines. |
Access routes can be defined |
Clearly allow entry and exit combinations and one-way and two-way traffic methods according to project requirements. |
Configurable door interlocks |
Combine door status detection with lock control logic to manage the door opening sequence during normal operation. |
The shower program is set according to the route |
Distinguish entry routes that require showering from other permitted routes to reduce confusion in operational procedures. |
Structure and airflow co-designed |
The doorway will take up wall space, and the layout of the nozzles, return air vents and air ducts needs to be checked at the same time. |
Support non-standard sizes |
Determine equipment specifications based on the number of users, door opening size, on-site space and maintenance conditions. |
The basic structure of the air shower room can be viewed Air showers understand different models.
Personnel enter the air shower area through the permitted entrance and close the entrance door. After the equipment confirms that the status of the relevant door meets the set conditions, it starts the fan and blows the filtered air through the nozzle to the surface of the clean clothes to help reduce some loose and attached particles.
After the shower is completed, the equipment releases the corresponding exit according to the selected traffic route, and personnel enter the designated area.
Allow the entrance to open → allow personnel to enter and close the door → confirm door status → purge operation → release corresponding exit
Route settings vary from project to project. It cannot be assumed that any two doors are passable just based on the three-door structure. The purpose and action sequence of each door should be clearly defined in the technical plan. For multi-person access configuration, please refer to Double double hair shower room and Triple-double air shower room to understand.
Control items |
Configure concerns |
|---|---|
Door status detection |
Confirm whether each door is closed and use it as a judgment condition for shower and door opening control. |
door interlock |
Set the doors that are allowed to be opened according to the traffic route, and manage the simultaneous opening of doors. |
Route selection |
Set buttons, permissions, or external signals to select access routes as needed for the project. |
Blower control |
Clarify which routes require blowing and showering, as well as the exit release conditions after the blowing and showering. |
Status prompt |
Prompt running, waiting and abnormal status through display or indicating device. |
Exception handling |
Clarify how to deal with power outages, doors that are not fully closed, or equipment failures. |
Normal operation interlocking, abnormal unlocking and on-site emergency requirements need to be confirmed together to avoid setting only the door lock function without complete operating logic. Please refer to the door form Learn about automatic sliding door air showers .
After the door is added to the three-door air shower, the wall area available for installing nozzles and return air outlets changes. Therefore, you cannot just add a door to the ordinary air shower box, but also need to recheck the air duct, nozzle position and maintenance space.
Aili Industrial can configure high-efficiency air filters based on the equipment structure, and match the filter specifications, resistance, installation sealing and fan working conditions. Filter products available HEPA and ULPA filters , confirm specifications in conjunction with particle control requirements. Please refer to the air volume conversion How to convert face wind speed and air volume? learn.
components |
Function and design requirements |
|---|---|
cabinet |
Determine the structure based on the door position, passage space and on-site interfaces. |
Fans and motors |
Provides power for blowing and showering, combined with filter and air duct resistance options. |
air filter |
Filter circulating air, specifications and grades are confirmed according to design requirements. |
blow shower nozzle |
Arrange it reasonably on the available wall surface, and check the standing position and shower direction of personnel. |
Return air structure |
Maintain the return air path to avoid obvious obstruction by doors or personnel positions. |
Door body and lock control |
It is matched with the traffic route, door status detection and control program. |
control system |
Manage shower, door interlocking, route selection and status prompts. |
Electronic manufacturing clean entrance |
Precision instrument assembly area |
Medical device production entrance |
Laboratory clean area entrance |
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Multi-directional personnel access |
The connection between the dressing area and the work area |
Non-standard clean entrance renovation |
Access areas that need to be managed by route |
When different cleanliness levels or different management areas are involved, you should first evaluate whether the shared shower space is suitable, and then determine the door position and route.
The air shower room is responsible for the surface blowing of people at the entrance. The internal environment of the clean area also needs to be maintained through air supply filtration, air flow organization, pressure difference and daily management.
Ai Li Industrial can be combined with FFU clean air supply products are equipped with clean area air supply. For local air supply needs inside production equipment or designated process locations, you can learn about it EFU equipment side fan filter unit . The logic of division of labor between the two lies in The division of labor between device-side EFU and room FFU is explained in detail.
Entrance equipment, room air supply and equipment end air supply should be selected according to their respective tasks to form a clean equipment configuration that matches the production process. When it comes to the overall clean room plan, you can refer to Should a new clean room project be graded or equipped first? and What should be checked first when upgrading the cleanliness of an old workshop? Understand the decision-making sequence.
Selection items |
What needs to be clarified |
|---|---|
regional connection |
What areas are connected to each door, and what are the cleaning and management requirements for each area. |
allowed route |
Which doors allow traffic between them and whether there are one-way restrictions. |
Blowing requirements |
Which traffic routes must be showered, and how to control other routes. |
Number of users |
Number of people entering at a time, concentrated traffic periods and waiting space. |
Door position and opening |
The direction of the door opening, the opening range of the door leaf and whether there is any interference with adjacent passages. |
Control permissions |
Whether access control, route selection or external system linkage is required. |
maintenance space |
Access locations for filters, fans, lock controls and electrical components. |
Field interface |
Installation dimensions, power supply, ground height difference and surrounding enclosure structure. |
For a three-door air shower, area connections and traffic rules should be determined first, and then the box size and control configuration should be determined. Insufficient maintenance channels will increase subsequent expenditures. This is reflected in what later expenses will be increased due to insufficient maintenance channels . There is a more detailed analysis of
Clean the inner wall, nozzles and return air outlets of the air shower in accordance with management requirements to avoid dust accumulation that affects the shower effect. The door movable area and return air outlet should not be blocked for a long time.
Regularly check the door interlocking, sensing device, lock control and shower timing functions. Maintain the primary filter according to the frequency of use, and determine the maintenance needs of the high-efficiency filter based on pressure difference, wind speed and filter status. After replacement, the installation seal and related performance should be rechecked. To judge the initial resistance and final resistance, please refer to What are the initial resistance and final resistance used to judge? , sealing inspection can refer to What should be checked when cleaning equipment is accepted?。
Aili Industrial has a production base of approximately 30,000 square meters, and its manufacturing system covers motors, fans, control systems, sheet metal processing, air filters, complete machine assembly and product testing.
For the three-door air shower room, Aili Industrial can check the door structure, shower system, filtration configuration and control program in the same plan to provide support for non-standard layout, on-site interface and project support. Through collaborative design of structure and control, the equipment configuration matches the actual personnel movement.
manufacturing link |
Project support |
|---|---|
Motors and fans |
Match the shower air volume, filter resistance and operating requirements |
air filter |
Check efficiency, size and installation seals |
control system |
Configure door interlocking, route selection, shower timing and access control linkage |
Sheet Metal and Structure |
Realize three-door layout, cabinet size and installation interface |
Complete machine assembly and testing |
Organize production and inspection according to confirmed drawings and technical requirements |
During normal operation, it should be controlled according to the set interlock logic, and simultaneous door opening cannot be used as the default mode of use. Specific opening conditions are determined based on regional connection and access requirements.
It can be designed according to this route requirement, but it needs to be confirmed whether the two exit connection areas are suitable for sharing the shower space, and the exit selection and authority control methods must be clarified.
You cannot judge based on the number of doors alone. Shared spaces, pressure differential relationships, personnel routes and risks of contamination introduction need to be evaluated before determining whether to adopt this structure. Related concepts can be referred to What is the difference between cleanliness level and filtration efficiency?。
Can be configured according to project requirements. It is necessary to confirm the access control authority, signal interface, route selection and processing logic in abnormal conditions. Door body linkage can be referred to Learn about automatic sliding door air showers .
You cannot judge based on the number of doors alone. The actual effect is related to the nozzle layout, fan operating conditions, personnel positions, blowing time and clean clothing status, and needs to be verified with specific equipment. For multi-person access configuration, please refer to Double double hair shower room and Triple-double air shower room to understand.
It can be designed according to the door position, number of people, on-site installation space and maintenance requirements. When adjusting the size, it is also necessary to check the air duct, filter and nozzle configuration simultaneously.
The three-door air shower needs to determine the personnel movement line, area division, door position and control logic. Clarifying the connection areas, allowed access routes and shower requirements of each door in advance will help reduce subsequent door position adjustments and program modifications.
Contact us to obtain product information and configuration plans for the three-door air shower.
→ Consult the three-door layout and personnel access plan → Submit door location and on-site installation dimensions
→ Understand door interlocking and access control linkage → Get customization support for non-standard air shower rooms
pass Aili Industrial Technology Consulting , communicates product selection and equipment matching needs.
Aili Industry - From core components to complete machines, we provide air shower equipment and project supporting support for the entrance of clean workshops.
