第1个回答 2012-03-17
Eight, alarm valve set installation
1. The alarm valve should be installed to the installation of water control valves, alarm valve, then we should then to alarm valve auxiliary pipelines. Water control valves, alarm valve and with water mains connection, should make water flow direction. Alarm valve set the installation position should comply with the design requirements; When design without the requirement, the alarm valve should be installed in the group is easy to operate the clear place, is apart from the indoor ground height is 1.2 m; Both sides and the distance of the wall should be not less than 0.5 m; Positive and the distance of the wall should be not less than 1.2 m; Indoor ground should have drainage.
2. Alarm valve set the installation of accessories shall meet the following requirements:
(1) pressure gauges should be installed in the alarm valve for observation on the position;
(2) drains, and test the valve should be installed in the position of the operation is convenient;
(3) water control valves should be installed for ease of operation, and should have obvious signs and reliable open and close to lock the facilities.
3. Wet alarm valve set installation should meet the following requirements:
(1) should be made before and after the alarm valve can be filled with water pipe smoothly; Pressure fluctuations, hydraulic alarm should not be wrongly alarm;
(2) alarm water circulation of filter way shall be installed in the delay before, and is easy to discharge the position of the operation.
Nine, other component installation
1. Hydraulic alarm should be installed in the public channel or external wall of wei on duty room nearby, and maintenance, test shall be installed the valve. Hydraulic alarm and alarm valve connection should use galvanization steel tube, when galvanization steel tube of nominal diameter of 20 mm, its length should not be more than 20 m; After installation of hydraulic alarm start-up pressure should be not less than 0.05 Mpa; Hydraulic alarm inlet and outlet of installation should be flat in bottom out direction.
2. Water flow indicator installation should meet the following requirements:
(1) water flow indicator installation should be in the pipeline pressure and flush after qualified, the water flow indicator of specifications, models should comply with the design requirements;
(2) water flow indicator should be installed in both horizontal and vertical roof-mounted solar panels, the movement direction should flow direction; After installation of water flow indicator of slurry, diaphragm should be flexible motion, should not be rubbed with wall occurred.
(3) signal valve should be installed in the water flow indicator of the pipe before, and the distance between the flow indicator should not be less than 300 mm.
(4) the exhaust valve installed in the pipeline network system pressure and qualified after rinse; Exhaust valve should be installed in the top with water mains, the end of pipes, and should ensure no leakage.
(5) of the specifications of the control valves, model and installation position all should comply with the design requirements; Installation should be correct direction, control valves shall clean, no jams, no leakage; The main control valves should be adding the opening and closing sign; The control valve cover shall be in a visible place an indication the location of the sign.
Ten, system commissioning
1. Water test should meet the following requirements:
(1) according to the design requirements verification of the volume, set fire water tank height and fire water not do it with the technical measures of;
(2) according to the design requirements verification fire pump the water supply and the number of engagement ability, and through the mobile fire pump or the fire for water supply test for verification.
2. Fire pump commissioning shall meet the following requirements:
(1) for automatic or manually start fire pump, fire pump should be in the 20 s investment within the normal operation;
(2) to spare when switching power supply, fire pump should be in 1.5 min in normal operation within.
3. Voltage stabilizing pump debugging, simulation design startup conditions, voltage stabilizing pump shall be immediately launched; When achieve system design pressure, voltage stabilizing pump should automatically stop running.
4. Alarm valve commissioning shall comply with the following requirements:
(1) the wet alarm valve debugging, in the water in the water to try device, alarm valve should be timely action;
(2) when delay no more than 90 s, hydraulic alarm should be issued a warning signal, the water flow indicator should output alarm signals, and the pressure switch should connect circuits alarm, and should start fire pump.
5. The drainage device testing should meet the following requirements:
(1) open drainage device Lord drain valve should be according to the maximum design system of water drainage test for fire fighting, and the pressure to achieve stability;
(2) test process, from the system of water discharge shall all be from indoor come in the drainage system.
6. Linkage test should meet the following requirements, and shall be recorded.
Start a shower nozzle or at 0.94 to 1.5 L/s flow from end to test the device in the water, the water flow indicator, pressure switch, hydraulic alarm and fire pump etc should be timely action and a signal.本回答被网友采纳