The automatic fire alarm system and linkage system debugging is divided into two parts: 1. The automatic alarm system's own device connection, login, linkage and the establishment of input relations; 2. Fire signal simulation to check whether the system in accordance with the preparation of the logical relationship.
(1) First, complete the connection of detectors, manual alarm buttons, fire hydrant manual alarm buttons, input modules, output modules, repeaters, and regional machines in the fire automatic alarm system. The following work should be done during the installation process:
1 Improve the completion drawings, and mark all the changes in the relevant locations, changes in quantity, and other changes that occurred during the construction process on the as-built drawings so that no omissions may occur during the next work.
2 Address the device in the system according to the requirements of the device, and mark the address number near the drawing so that the address can be set according to the set addressing, prevent the address error when installing the device, and the address number. It also provides linkage device logical input numbers for the establishment of linkage relationships. After setting the address number, the name of the device installation location is calibrated according to the device requirements (some alarm controllers can display the Chinese name of the alarm point) so that the alarm controller can display the name of the alarm point.
3 After the above work is completed, the insulation resistance of the circuit shall be measured. During the measurement, the measurement shall be made between the lines and between the lines to ensure that the degree of insulation between the lines and between the line and the ground meets the required degree of insulation. When the system is turned on, No line failure will occur. The insulation resistance of the probe and linkage bus is not less than 20MΩ, and the insulation resistance of the power supply line is not less than 0.5MΩ. Conditional oscilloscope can be used to detect whether the interference on the line will affect the operation of the equipment.
4 Connect the working ground and protective grounding of the equipment to improve the AC interference of the power supply during the operation of the equipment and ensure the reliable operation of the system.
5 Connect the AC power supply. The measurement voltage range should not exceed 220V+10%, -15%. Connect the backup battery and make final preparations for startup.
(2) Install the system components according to the design location. After the installation is complete, log in to the device. After the device logs in, observe that the system is running well and troubleshoot. Enter the linkage logic after the system is running normally.
(3) The linkage logic relationship shall be compiled in accordance with the relevant national fire code requirements. The principle of linkage relations that will be commonly used in high-rise buildings is provided as follows:
1 Fire hydrant system:
Fire hydrant manual alarm button action → fire pump start signal (or fault signal, refers to the fire pump fault) feedback to the fire control room (in the alarm controller or linkage controller display).
Fire control room manually start the fire pump → fire pump start signal (or fault signal, refers to the fire pump power supply failure) feedback to the fire control room (in the alarm controller or linkage controller display).
Manually starting the fire pump is divided into two methods: using a multi-wire system to directly start the fire pump and manually triggering the fire pump output module (control module) through the alarm linkage controller. The specific method depends on the design.
2 automatic sprinkler system:
The linkage relationship of the automatic sprinkler system is as follows:
Water flow indicator action signal "and" pressure switch action signal → start spray pump.
Water flow indicator action → feedback signal to fire control room (alarm linkage controller shows flow indicator operation signal).
Pressure switch action → feedback signal to fire control room (alarm linkage controller shows pressure switch action signal).
The spray pump start signal (or fault signal, referring to the spray pump power supply fault) is fed back to the fire control room (displayed in the alarm controller or linkage controller).
The fire control room manually starts the spray pump → the spray pump start signal (or fault signal, refers to the spray pump power failure) is fed back to the fire control room (displayed in the alarm controller or linkage controller).
The manual start of the spray pump is divided into two ways: the multi-line direct start spray pump and the alarm linkage controller to manually start the spray pump output module (control module), depending on the design.
3 smoke prevention system:
The linkage relationship of the mechanical positive pressure air supply system is as follows:
Detector alarm signal "OR" Manual alarm button alarm signal → Open positive pressure air supply port → Positive pressure air supply port open signal → Start positive pressure blower.
The number of positive pressure air outlets can be set according to the following requirements:
1) The opening of the positive pressure air outlet in the smoke-proof stairwell shall enable the entire stairwell to be fully opened, so that a uniform positive pressure will be formed throughout the stairwell;
2) The opening of the positive pressure air outlet in the front room shall be opened in accordance with the evacuation sequence of the personnel, that is, the positive pressure air supply opening of the alarm layer and the lower two layers of the alarm layer shall be opened.
Signal return request:
1) The fire control room (alarm controller or linkage controller) displays the positive pressure air supply opening status;
2) The fire control room (alarm controller or linkage controller) shows the operating status of the positive pressure blower.
Manually starting the positive pressure blower in the fire control room is divided into two ways: using the multi-wire system to start directly and manually triggering the positive pressure blower output module (control module) through the alarm linkage controller. The specific method depends on the design.
Smoke system linkage logic relationship:
Detector alarm signal in the exhaust area "or" manual alarm button alarm signal in the exhaust area → Activate the smoke exhaust area of ​​the exhaust area (open) → Smoke discharge opening signal activates the exhaust fan (or start exhaust Fan high speed).
The closing signal of the queuing smoke damper (280°C) at the entrance of the exhaust fan → Stop the exhauster in the relevant area.
Signal return request:
1) The fire control room (alarm controller or linkage controller) shows that the smoke exhaust port is open;
2) The fire control room (alarm controller or linkage controller) displays the operating status of the exhaust fan;
3) The fire control room (alarm controller or linkage controller) shows that the fire damper is closed.
Manually starting the exhaust fan in the fire control room is divided into two modes: a multi-line direct start and manual start of the exhaust fan output module (control module) through the alarm linkage controller, depending on the design.
4 The linkage of fire shutter doors is as follows:
1) Fireproof rolling shutters, which are used only as a firebreak, do not require two-step landing.
Smoke detector alarm signal → start fire shutter door drop output module control fire shutter door down to the end → fire shutter door lower limit signal feedback to the fire control room through the input module (fire alarm controller shows the fire shutter door closing signal).
2) The fire shutter door used on the evacuation passage for the fire shutter door used on the evacuation passage shall be lowered in two steps. The linkage relationship is as follows:
Smoke detectors installed on both sides of the fire shutter door alarm signal → start fire shutter door step down output module to stop the fire shutter door after a step down, when installed on the fire detector door on both sides of the thermal detector to send an alarm signal to start the fire shutter door two steps The drop output module allows the fire shutter doors to land in the end.
5 Fire alarm and fire accident broadcast linkage:
Fire alarms mainly refer to sound and light alarms in high-rise buildings. They have automatic sound and light alarms that are turned on in the same sequence as the fire accident broadcasts. In the automatic alarm system, the linkage and opening of sound and light alarms and fire accident broadcast and linkage are as follows:
Manual alarm button "or" two fire detector alarm signal "and" → start sound and light alarm, fire accident broadcast output module → access to sound and light alarm alarm power supply, fire accident radio link.
The firing order of fire alarms and fire accidents in high-rise buildings is as follows:
1) When a fire occurs on floors 2 and 2 or above, it is advisable to first connect the fire floor and its adjacent upper and lower floors;
2) When a fire occurs on the ground floor, it is advisable to turn on this floor, the second floor and the underground floor first;
3) When there is a fire in the local lower room, it is advisable to first connect the underground floors and the first floor. If the first floor and the second floor have a large share, it should include two floors.
Fire elevator linkage:
6 The linkage relationship of fire elevators is as follows:
Manual alarm button "or" two detector alarm signal "and" → start fire elevator strong drop output module action → fire elevators drop the first floor and return a signal to the fire control room. The best way to fire a lift is to manually descend in a fire control room.
7 non-fire power switch:
Non-fire power switching linkage logic is as follows:
Manual alarm button "or" two detector alarm signal "and" → start non-fire power switching output module action → the module starts the circuit breaker (air switch) trip mechanism to make the breaker (air switch) trip cut off non-fire power .
The best way to cut off the non-fire power supply should be manually removed in the fire control room.
(4) Automatic fire alarm and linkage system In accordance with the above steps and requirements, according to the programming requirements for specific projects and different alarm linkage devices, the linkage relationship shall be prepared by the professional and input into the alarm controller according to the device requirements to complete the commissioning of the system. jobs. Finally, through the simulation of the fire signal, it is checked whether the linkage relationship is correct and whether the linked object action achieves the purpose of linkage.
(5) After completing the above content, the system can be handed over.
(1) First, complete the connection of detectors, manual alarm buttons, fire hydrant manual alarm buttons, input modules, output modules, repeaters, and regional machines in the fire automatic alarm system. The following work should be done during the installation process:
1 Improve the completion drawings, and mark all the changes in the relevant locations, changes in quantity, and other changes that occurred during the construction process on the as-built drawings so that no omissions may occur during the next work.
2 Address the device in the system according to the requirements of the device, and mark the address number near the drawing so that the address can be set according to the set addressing, prevent the address error when installing the device, and the address number. It also provides linkage device logical input numbers for the establishment of linkage relationships. After setting the address number, the name of the device installation location is calibrated according to the device requirements (some alarm controllers can display the Chinese name of the alarm point) so that the alarm controller can display the name of the alarm point.
3 After the above work is completed, the insulation resistance of the circuit shall be measured. During the measurement, the measurement shall be made between the lines and between the lines to ensure that the degree of insulation between the lines and between the line and the ground meets the required degree of insulation. When the system is turned on, No line failure will occur. The insulation resistance of the probe and linkage bus is not less than 20MΩ, and the insulation resistance of the power supply line is not less than 0.5MΩ. Conditional oscilloscope can be used to detect whether the interference on the line will affect the operation of the equipment.
4 Connect the working ground and protective grounding of the equipment to improve the AC interference of the power supply during the operation of the equipment and ensure the reliable operation of the system.
5 Connect the AC power supply. The measurement voltage range should not exceed 220V+10%, -15%. Connect the backup battery and make final preparations for startup.
(2) Install the system components according to the design location. After the installation is complete, log in to the device. After the device logs in, observe that the system is running well and troubleshoot. Enter the linkage logic after the system is running normally.
(3) The linkage logic relationship shall be compiled in accordance with the relevant national fire code requirements. The principle of linkage relations that will be commonly used in high-rise buildings is provided as follows:
1 Fire hydrant system:
Fire hydrant manual alarm button action → fire pump start signal (or fault signal, refers to the fire pump fault) feedback to the fire control room (in the alarm controller or linkage controller display).
Fire control room manually start the fire pump → fire pump start signal (or fault signal, refers to the fire pump power supply failure) feedback to the fire control room (in the alarm controller or linkage controller display).
Manually starting the fire pump is divided into two methods: using a multi-wire system to directly start the fire pump and manually triggering the fire pump output module (control module) through the alarm linkage controller. The specific method depends on the design.
2 automatic sprinkler system:
The linkage relationship of the automatic sprinkler system is as follows:
Water flow indicator action signal "and" pressure switch action signal → start spray pump.
Water flow indicator action → feedback signal to fire control room (alarm linkage controller shows flow indicator operation signal).
Pressure switch action → feedback signal to fire control room (alarm linkage controller shows pressure switch action signal).
The spray pump start signal (or fault signal, referring to the spray pump power supply fault) is fed back to the fire control room (displayed in the alarm controller or linkage controller).
The fire control room manually starts the spray pump → the spray pump start signal (or fault signal, refers to the spray pump power failure) is fed back to the fire control room (displayed in the alarm controller or linkage controller).
The manual start of the spray pump is divided into two ways: the multi-line direct start spray pump and the alarm linkage controller to manually start the spray pump output module (control module), depending on the design.
3 smoke prevention system:
The linkage relationship of the mechanical positive pressure air supply system is as follows:
Detector alarm signal "OR" Manual alarm button alarm signal → Open positive pressure air supply port → Positive pressure air supply port open signal → Start positive pressure blower.
The number of positive pressure air outlets can be set according to the following requirements:
1) The opening of the positive pressure air outlet in the smoke-proof stairwell shall enable the entire stairwell to be fully opened, so that a uniform positive pressure will be formed throughout the stairwell;
2) The opening of the positive pressure air outlet in the front room shall be opened in accordance with the evacuation sequence of the personnel, that is, the positive pressure air supply opening of the alarm layer and the lower two layers of the alarm layer shall be opened.
Signal return request:
1) The fire control room (alarm controller or linkage controller) displays the positive pressure air supply opening status;
2) The fire control room (alarm controller or linkage controller) shows the operating status of the positive pressure blower.
Manually starting the positive pressure blower in the fire control room is divided into two ways: using the multi-wire system to start directly and manually triggering the positive pressure blower output module (control module) through the alarm linkage controller. The specific method depends on the design.
Smoke system linkage logic relationship:
Detector alarm signal in the exhaust area "or" manual alarm button alarm signal in the exhaust area → Activate the smoke exhaust area of ​​the exhaust area (open) → Smoke discharge opening signal activates the exhaust fan (or start exhaust Fan high speed).
The closing signal of the queuing smoke damper (280°C) at the entrance of the exhaust fan → Stop the exhauster in the relevant area.
Signal return request:
1) The fire control room (alarm controller or linkage controller) shows that the smoke exhaust port is open;
2) The fire control room (alarm controller or linkage controller) displays the operating status of the exhaust fan;
3) The fire control room (alarm controller or linkage controller) shows that the fire damper is closed.
Manually starting the exhaust fan in the fire control room is divided into two modes: a multi-line direct start and manual start of the exhaust fan output module (control module) through the alarm linkage controller, depending on the design.
4 The linkage of fire shutter doors is as follows:
1) Fireproof rolling shutters, which are used only as a firebreak, do not require two-step landing.
Smoke detector alarm signal → start fire shutter door drop output module control fire shutter door down to the end → fire shutter door lower limit signal feedback to the fire control room through the input module (fire alarm controller shows the fire shutter door closing signal).
2) The fire shutter door used on the evacuation passage for the fire shutter door used on the evacuation passage shall be lowered in two steps. The linkage relationship is as follows:
Smoke detectors installed on both sides of the fire shutter door alarm signal → start fire shutter door step down output module to stop the fire shutter door after a step down, when installed on the fire detector door on both sides of the thermal detector to send an alarm signal to start the fire shutter door two steps The drop output module allows the fire shutter doors to land in the end.
5 Fire alarm and fire accident broadcast linkage:
Fire alarms mainly refer to sound and light alarms in high-rise buildings. They have automatic sound and light alarms that are turned on in the same sequence as the fire accident broadcasts. In the automatic alarm system, the linkage and opening of sound and light alarms and fire accident broadcast and linkage are as follows:
Manual alarm button "or" two fire detector alarm signal "and" → start sound and light alarm, fire accident broadcast output module → access to sound and light alarm alarm power supply, fire accident radio link.
The firing order of fire alarms and fire accidents in high-rise buildings is as follows:
1) When a fire occurs on floors 2 and 2 or above, it is advisable to first connect the fire floor and its adjacent upper and lower floors;
2) When a fire occurs on the ground floor, it is advisable to turn on this floor, the second floor and the underground floor first;
3) When there is a fire in the local lower room, it is advisable to first connect the underground floors and the first floor. If the first floor and the second floor have a large share, it should include two floors.
Fire elevator linkage:
6 The linkage relationship of fire elevators is as follows:
Manual alarm button "or" two detector alarm signal "and" → start fire elevator strong drop output module action → fire elevators drop the first floor and return a signal to the fire control room. The best way to fire a lift is to manually descend in a fire control room.
7 non-fire power switch:
Non-fire power switching linkage logic is as follows:
Manual alarm button "or" two detector alarm signal "and" → start non-fire power switching output module action → the module starts the circuit breaker (air switch) trip mechanism to make the breaker (air switch) trip cut off non-fire power .
The best way to cut off the non-fire power supply should be manually removed in the fire control room.
(4) Automatic fire alarm and linkage system In accordance with the above steps and requirements, according to the programming requirements for specific projects and different alarm linkage devices, the linkage relationship shall be prepared by the professional and input into the alarm controller according to the device requirements to complete the commissioning of the system. jobs. Finally, through the simulation of the fire signal, it is checked whether the linkage relationship is correct and whether the linked object action achieves the purpose of linkage.
(5) After completing the above content, the system can be handed over.
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