【 Weak current College 】 automatic fire alarm and fire control systems engineering construction site coordination and control

Construction content overview
1. brief introduction of automatic fire alarm system
Fire control center equipment, regional fire control devices and various code modules (input module, the output module, multi-function control modules, etc.); a second bus system; fire alarm detectors have a smoke detector and heat detector, sensitive detector, combustible gas detector, hybrid fire detectors, etc.; water sprinkler system alarm valve, flow meter and the pressure switch; 70 ℃ fire damper and 280 ° c fire damper alarm; Manual alarm with intercom phone jack, fire hydrant, set the alarm button in the alarm signal can be manually or automatically starts the fire pump.
2. fire fighting equipment classification
(1) fire emergency broadcast: fire alarm or sound and light signal.
(2) civil professional: fireproof roller doors, fire doors.
(3) ventilation professional: 70 ° c 280 degrees centigrade fire damper, fire dampers, positive-pressure blowers and air inlet, exhaust fan and air inlet, new fan outlet, etc.
(4) strong electric professional: non-fire power cutting device, press the fire control centre instruction program cut off power to the relevant parts of the fire.
(5) Elevator professionals: fire elevator, non-fire lift.
(6) professional fire-fighting water and electricity: fire control pump, spray pumps, shower valve, alarm valve and hydrant button, spray head, flow meter, drainage pump, etc.; automatic fire alarm equipment, gas fire extinguishing equipment.
To sum up, fire protection engineering construction involves the most extensive, lump coordinator job tasks is very heavy, should control the various professional burying common construction, to ensure the successful completion of the goals achieved on schedule.
Construction site coordination points
1. construction and civil engineering structures with
(1) fire-fighting water and electricity construction drawing professional pursuant to reserve hole, embedded iron. OK box (carton) specifications, geometry, making box (carton), material available in wood or steel manufactured set box (carton), timely coordination of civil construction, installation box (carton).
(2) in the underground air defense lines pass through the area, timely burying embedded good wall bushing.
(3) in the laying of fire detector lines and dark, you should promptly with all civil and other construction professionals. When the pipeline more overlap the space, with relevant professional pipeline construction personnel coordination bypass or staggered position.
(4) in the floor or wall reinforcement, the need to cut steel, advance to the responsible persons of civil structure, identify solutions, is strictly prohibited without cutting rebar.
(5) long buried pipeline, according to existing national standards and specifications increase terminal box, the additional terminal box position, must be clearly marked on construction drawings, preventing the thread, or swap line is difficult to find. In piping, escape the other professional equipment cave and equipment base, avoid future dismantles rework.
(6) buried pipeline-intensive parts, construction time in construction drawing draw specific coordinates on location, in the decoration of the construction process, to other professional builders tips when playing hole to avoid this site, prevent the buried pipeline break.
2. the renovation works and civil engineering construction
(1) ceiling within indoor or corridor fire detector, installed in the speaker, in the context of civil ceiling sectional map location. When it finds local protection area is insufficient or beep blind spot, should promptly find designer consultation to find out the best solution. At the same time with good construction professionals open ceiling installation openings on the device.
(2) cooperate with the civil light steel keel laying pipeline within the partition, reserved boxes (box), you should promptly lines and boxes (boxes) fixed firmly while brushing good fire retardant paint.
(3) construction units require civil Professional on floor layout and original drawings occur when variable bit, such as the partition walls of deflection, impact detector, speakers, etc., to promptly identify fire design officer adjusted layout changes to the fire alarm system pipeline and detectors, the location of the speakers.
(4) civil decoration construction is completed, doors and Windows paint finish; glass, door locks installed; the wall surface, ground plastering, spray wet job completion; roof waterproofing layer do not leak, clean Interior, fire protection control center (central control room) fire control hosts allowed to carry out the installation.
(5) the installation of various detectors, consideration should be given to the construction site of construction waste and clean, professional construction has been into one end, and then install to prevent dust pollution probe is, alarm, insensitive, etc.
Construction site control focus
(1) audit fire engineering drawings by have the legal qualification of design unit design, confirm construction drawings to be used effectively.
(2) audit fire engineering construction drawing plane with the professional flat construction drawings, elevation on reserved hole; pipe, structural forms; walls and floors of practices, thickness, etc.; ceiling and light steel keel walls practices to review whether the space place, or in a hole in pipe extrusion, in particular access to the pipe shaft or corridor pipeline prone to problems that may require design units in the pipeline more parts of a comprehensive pipeline diagram.
(3) carefully read construction drawings, you will find a summary of issues central to the design, organization design gives the low-down, put questions to form a solution file, to be checked to confirm, and prompt procedures for design changes.
(4) automatic fire alarm and fire control systems engineering construction organization plan audit:
1) focused on understanding the main fire works, what's in a construction process and quality control manager.
2) fire protection engineering construction materials and equipment used for processing orders for planning, workforce scheduling, construction schedule, and so should the General and civil engineering construction schedule, make sure that the total duration progresses smoothly conclusion.
3) fire-fighting work construction technology to give the low-down, the key is in the structure, decoration, before the completion of construction equipment debugging, how to coordinate various professional construction, fire control systems for various professional requirements and cooperation are clear.
(5) on the fire fighting equipment processing orders specific requirements:
1) refusing to fire elevator control should beThe first function is returning a forced landing, fire 24V contact Terminal 2, after a forced landing at the first floor have feedback signal passive contact Terminal 2, a total of four contacts or configuration 1 x 24V DC intermediate relay.
2) non-fire elevator control cabinet should have forced landing features fire 24V connection terminal 2, 1st floor after power loss forced landing, should have the power of feedback signal passive connection terminal.
3) power and lighting power: the non-fire-power and lighting power control cabinets 24V (box) should have a separate trip line, circle, and have a feedback signal passive nodes.
4) fire shutter: in addition to fire shutter control box with 24V landing contacts and feedback signal passive nodes, the strong electricity power failure, the shutter down the bottom should also have the feedback signal, the feedback signal to shutter limit switch on check out.
5) fire pump, spray pumps: its control cabinet preparation of pump in the primary, is in central control room consoles with 24V stop contacts from, and have a feedback signal from the contact. Lord, keep pump control cabinet with interlocking changeover feature.
6) fan: pressure fans, exhaust fan, fan control cabinets 24V stop contacts should be, and have one-on-one feedback signal passive nodes. Fan power supply has the function of mutual investment.
7) fire dampers: 70 degrees centigrade fire damper and 280 ° c fire dampers on feedback signal contact.
8) air pressure: 280 ° c fire smoke exhaust valve should have 24V coil contacts and feedback signal passive nodes.
9) flow indicator, signal butterfly valve, pressure switch should be provided with feedback signal contact.
10) shower valve, solenoid valve coil contacts should 24V, feedback signal contact.
The fire fighting equipment manufacturers of processing orders, should also provide wiring diagram.
(6) fire fighting equipment control debugging with professional and device:
1) ventilation professional: fire damper, positive-pressure blowers and air exhaust valve, exhaust fan and air outlet.
2) strong electric professional: fan, elevators, fire pump control cabinet, non-fire power control box (Cabinet), evacuation, emergency lights, LEDs.
3) civil professional: fire shutter.
4) Elevator professionals: fire elevator, non-fire lift.
5) fire, electrical fire control pump of professional:, rain and spray pump, valve, alarm valve and hydrant button, spray head, flow meter, etc; fire emergency broadcast, fire alarm, sound and light alarm, fire protection and ventilation equipment, automatic fire alarm equipment, gas fire extinguishing equipment.
(7) Elimination of interlocking device debugging:
1) debugging fire fighting equipment, the total package, overseeing the convening of the meeting for coordination, and fire professionals meet the professional requirements and procedures for debugging.
2) professional before in fire fighting, first check the debugging of their respective device installation is finished, all the power and control cable is connected correctly, to test runs fine, fire control contacts.
3) fire professionals pursuant to the procedure, the first to own equipment running debug, and then find other professionals for linkage on the increase.
4) fire equipment and professional equipment separate linkage debugging, a comprehensive unified debugging, debugging, fire detection, inspection and acceptance reported fire stations. The results of the qualified acceptance, delivery of building units correctly.