Design of smoke removal systems
Designing smoke exhaust systems is a responsible task, the quality of which determines the most important thing – human life. While there are many incompetent specialists, the work should be entrusted to real professionals. For example, the company Server Service!
Emergency ventilation is an important component of the project of any modern building. First of all, it is designed to eliminate smoke and combustion products that are dangerous for inhalation in the event of a fire.
Features of smoke removal system calculation
When developing an emergency ventilation project, the following are especially taken into account:
1
Number of floors and design features of the building;
2
Purpose of the building (administrative, residential, industrial);
3
Evacuation routes in case of fire.
If the project is developed on the basis of regulatory documents, and it should be.
Mandatory points are taking into account fire safety rules and ensuring fire protection of the system components – air ducts, valves, fans.
To make certain calculations, you should calculate:
1
Thermal load level in case of emergency;
2
The required air exchange rate during a fire;
3
Temperature and density of combustion products;
4
Air flow;
5
Total pressure loss.
As a rule, the power of smoke exhaust fans and the size of the ventilation duct cross-section will depend on the results obtained.
When designing, it is important to take into account some points. Firstly, the exhaust ducts should be located near the load-bearing floors. Secondly, the supply duct is located on the side of the corridor, and the exhaust duct on the side of the room. Thirdly, the ventilation system should be additionally equipped with smoke detectors.
Project documentation
The design documentation package includes the following:
1
Emergency ventilation drawings;
2
Explanatory note with comments on the operation of the system.
3
Estimate.
In order to carry out design work, companies must have certificates confirming their activities.
Design: Features
So, designing a smoke control system involves a whole range of work. First of all, specialists analyze the project and perform all the necessary calculations.
It will be necessary to identify the rooms requiring installation of the system, determine the number of stairwells and elevator shafts into which fresh air masses must enter, and make sure that it is permissible to use shafts for smoke removal.
At the initial stage, all necessary calculations are carried out (the type and number of mounting points and air ducts are determined, fans and type of fire protection are selected) and a technical specification is drawn up.
The design must be carried out in full compliance with SNIPs. According to the rules, the system consists of the following components:
1
Air ducts;
2
Smoke valves;
3
Fans for pressurization and smoke removal;
4
Mines;
5
Fire protection.
It is especially important to take into account all the features of the building. To draw up the technical specifications, you should inspect the object, analyze the information received, and specify the ventilation requirements. A competent technical specification will allow you to correctly draw up drawings, estimates, and specifications.
In addition, it is important to choose the right fire-resistant material, develop a duct layout, and test emergency ventilation by creating artificial conditions. The documentation reflects everything: the characteristics and features of the building, the complexity of installing air ducts, installation requirements and the components necessary for this, the choice of fire protection equipment, the calculation of smoke exhaust valves, test results, etc.
Design: Common Mistakes
Our company has been working in the field of industrial ventilation for over 10 years. We often have to not only design emergency ventilation systems, but also correct the work done by others. Thus, most often we note the following errors during the design:
1
Failure to comply with current building codes;
2
Errors in the graphic part;
3
Errors in determining the dimensions of the room;
4
Incorrect calculations;
5
Incorrect selection of smoke exhaust system components.
These and other errors will result in the smoke exhaust system not coping with its assigned functions.
To avoid any problems when arranging emergency ventilation, contact the Server Service company. In addition, our specialists with extensive practical experience will develop a ventilation project, make all the necessary calculations and provide a full package of documentation. Professional installers will install the system, conduct testing and commissioning.
In addition, our company owns a plant for the production of air ducts. This means that we can manufacture for you all the necessary components for high-quality ventilation at the lowest price!
Server-Service is your reliable partner in creating a comfortable climate in your home, office or enterprise!
Contact us today to get advice and learn more about our services!
Contacts:
Telephone: +998 (71) 502 01 32, +998 (98) 128 42 00;
Telephone: +998 (71) 502 01 32,
Email: manager.serverservice@gmail.com
We will be happy to answer your questions!
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