General: Fire Safety Technology (13) Smoke and Smoke Removal System

System components (devices) check before installation

First, quality control documents inspection

(a) check the contents

After the system components, fittings and other equipment and materials arrive at the site, the following contents of the quality control documents are checked:

1. The nameplates, signs, factory product certificates, and fire protection products of system components, equipment, and materials comply with statutory market access rules.

2. The statutory test reports that the main components and equipment of the fan, positive pressure air supply outlet, fire damper, exhaust valve, etc., have passed the test of the National Fire Product Quality Supervision and Inspection Center.

(B) Inspection methods and requirements

Compare the specifications and models of on-site components, equipment and materials, check and verify the quality control documents such as the factory qualification certificate, quality certification certificate, and statutory testing organization's inspection qualification report, and check whether the copy is consistent with the original.

Second, on-site inspection

After the system components, materials, and equipment arrive at the site, check their appearance, specifications, basic performance, and stringency.

(I) Inspection contents and requirements

1. Duct inspection

( 1 ) The material types, specifications, and thickness of the air duct should meet the design requirements and the current national standards.

System installation and testing

(I) Installation and testing of components

1. Fire damper and smoke damper

( 1 ) The direction and position of the installation should be correct. The valve should be closed along the air flow direction. The fire dampers on both sides of the fire partition wall should not be larger than 200 mm from the end of the wall .

( 2 ) The manual and electric devices should be flexible and reliable, and the valves should be closed tightly;

( 3 ) An independent hanger shall be provided. When the wind pipe is fireproofed with non-combustible materials, the valve installation shall be clearly marked.

Inspection method: measurement, observation and movement check.

2. Air outlet and exhaust valve ( mouth )

( 1 ) The installation location should meet the design requirements, and should be fixed firmly, with a smooth surface, no deformation, and flexible adjustment;

( 2 ) The distance from the smoke outlet to combustible or combustible components should not be less than 1.5m .

( 3 ) The manual driving device for the normally closed air outlet and exhaust valve ( mouth ) shall be fixedly installed at 1.3m to 1.5m away from the floor of the building. Between the easy-to-operate positions, the pre-embedded casing must not have dead bends and sag, and manual drive operation should be flexible.

Inspection method: ruler, observation and operation inspection.

3 smoke wall

( 1 ) Models, specifications, sagging lengths and mounting positions should meet the design requirements;

( 2 ) The gap between the active smoke wall and the building structure (column or wall) surface shall not be greater than 60mm , and a continuous smoke wall consisting of two or more smoke curtains shall not be placed between the blocks. With gaps, the lap width should not be less than 100mm ;

( 3 ) The manual operation button of the movable smoke screen shall be fixed and installed at a distance of 1.3m to 1.5m from the floor of the building. between.

System maintenance management

The maintenance and management of the smoke prevention and smoke extraction system facilities of the building includes the inspection, maintenance, maintenance and documentation. The unit is equipped with fire-fighting professional training, familiar with the system principle, performance, maintenance and management personnel with system operation and maintenance capabilities, regularly on-demand or entrusted enterprises with maintenance qualifications to test and maintain the system to ensure the mechanical smoke and smoke exhaust system normal operation.

First, the system daily inspection

Mainly for the daily inspection of the appearance of the system components, on-site status, the quasi-working status of the system detection device, the installation site environmental conditions.

Second, the system periodic inspection and maintenance

The periodic inspection of the system refers to the inspection and testing of the components and parts of the smoke and smoke exhaust system that have been put into use according to the requirements of the national engineering fire fighting technical standards.

(I) Check the contents and requirements on a monthly basis

1. Smoke prevention and smoke exhaust fan

Manually or automatically start the test run, check for corrosion and loose screws.

2. Smoke wall

Manual or automatic start, reset test, with or without lifting obstacles.

3. Smoke window

Manual or automatic start, reset test, whether there is a switch barrier monthly power supply line inspection whether the power supply line aging, dual-circuit automatic switching power supply function.

(II) Inspection contents and requirements for half a year

1. fire dampers

  Manual or automatic start, reset test inspection, with or without deformation, rust and spring performance, confirm reliable performance.

2 . Smoke damper

  Manual or automatic start, reset test inspection, whether there is deformation, corrosion and spring performance, confirm reliable performance

3 . Supply air valve (mouth) manual or automatic start, reset test inspection, with or without deformation, rust and spring performance, confirm reliable performance.

4 exhaust valve (mouth)

Manual or automatic start, reset test inspection, with or without deformation, rust and spring performance, confirm reliable performance.

(c) Annual inspection requirements

1. Check content and requirements

Each year, all the installed smoke prevention and smoke extraction systems are subjected to a single linkage test and performance test. The linkage function and performance parameters should meet the original design requirements.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.