GB 27898.1-2011Fixed water supply equipment used for fire-protection - Part 1: Gas pressure fixed water supply equipment used for fire-protection (English PDF)

4.1 Categories

4.1.1 Are there fire pumps are divided into.

--- Emergency type fire pressure water supply equipment, feature code J;

--- Supercharged fire pressure water supply equipment, features Code Z.

4.1.2 pressure tank by forms of work is divided into.

--- Qi type fire pressure water supply equipment, features Code B;

--- Capsule fire pressure water supply equipment, features of the code are omitted.

4.2 Model preparation Fire pressure water supply equipment model prepared by the following method. Fire pressure water supply equipment Classification features of the code (see 4.1) Only gas/air pressure in units of ten megapascals (MPa × 10) / - Effective water volume, in units of cubic meters (m3) - (-/-) Supercharged equipment fire rated working pressure, in units of ten megapascals (MPa × 10)/fire rated working flow, in liters per second (L/s) - - Enterprise custom Example 1. Device Model QJB3/6-ABC ABC represents qi Emergency type fire pressure water supply equipment, gas pressure only to 0.3MPa, effective firefighting water volume 6m3. Example 2. Device Model QZB2.5/18- (4/20) -DEF represented DEF qi booster type fire pressure water supply equipment, gas pressure only to 0.25MPa, eliminate Anti-effective water volume of 18m3, fire rated working pressure of 0.4MPa, working fire rated flow 20L/s. Example 3. Equipment Type QZ2/3- (5/10) -HIJ represented HIJ capsule supercharged fire pressure water supply equipment, pneumatic pressure of 0.2MPa, effective firefighting water Volume of 3m3, fire rated working pressure of 0.5MPa, working fire rated flow 10L/s.

5.1 Basic parameters

5.1.1 fire pressure water supply equipment (hereinafter referred to as the device) stop the gas/air pressure p1 not less than 0.15MPa. Fire rated working flow

5.1.2 devices Qx not less than 5.0L/s. Fire rated working pressure

5.1.3 px equipment not less than 0.3MPa. Effective water volume V3

5.1.4 device should not be less than 3m3. Recommended volume parameters series. 3m3,6m3,9m3,12m3 and 18m3. Equipment and components constituting 5.2

5.2.1 Equipment constituting

5.2.1.1 Equipment constituent parts shall include at least the pressure tank and accessories, water pumps, valves and piping accessories, measurement and control instruments, control cabinet.

5.2.1.2 equipment components should concentrate arrangements should overall compact, neat, and should be easy to maintain and repair.

5.2.1.3 Each component mounting apparatus should be strong, be a reliable link.

5.2.2 General requirements for components

5.2.2.1 equipment purchased components should be used in line with national standards or industry standard generic products, and priority should be given special fire protection products. Developed and produced by the manufacturer should be dedicated member through product technical appraisal.

5.2.2.2 should be used in pressure vessel manufacturer in accordance with the provisions of GB 150 production pressure tank. Its operational safety should be consistent TSGR0004 requirements.

5.2.2.3 The pressure tank equipment, pipe valves and accessories pressure rating not less than

1.5 times the maximum working pressure.

5.2.2.4 Use of the device should be used in a reasonable range of gauges to monitor the pressure of not less than

2.5 meter accuracy, control pressure with pressure gauge Accuracy should meet the requirements of 5.13.1. Pressure gauge housing nominal diameter of not less than 100mm.

5.3 appearance and identity

5.3.1 Appearance

5.3.1.1 Device components outer surface should not have a significant bump scars, deformation and other defects.

5.3.1.2 coating equipment should be complete and beautiful. Similar parts surface coating color should be consistent.

5.3.2 Device Identification

5.3.2.1 should set the device signs, signs shall meet the requirements of 8.1.

5.3.2.2 Device components signage content should be clear and complete.

5.3.2.3 In the device may endanger personal safety, which needs to prevent improper operation and misuse of office should hang warning signs, logo should be clearly visible.

5.3.2.4 spraying equipment water pipe should identify the flow direction of the arrow.

5.4.1 Regulators Run

5.4.1.1 qi devices should have the water pressure control and the tank water level control interlock function.

5.4.1.2 p3 ~ p4 within the operating pressure range and the pressure tank liquid level range, the device set pressure and the measured pressure deviation to For repeatability and bias different pressure disturbances are measured should not exceed 0.02MPa. Level control repeatability deviation should not exceed 1.0cm.

5.4.1.3 When the fire pond water level control device has a function of the operating state regulation in the fire, in case the water level sinks below the set limit, the device Regulators should automatically stop water pump and send an alarm signal in case of fire should not affect the start of the fire pump operation.

5.4.1.4 pump regulator should adopt alternate operating mode. After running into fire state, the regulator pump should stop working.

5.4.2 Fire mode operation start state

5.4.2.1 equipment should have an emergency boot device by manipulating the cabinet set function (button) manually start the fire running state.

5.4.2.2 Equipment should have a manual remote control device (button) fire emergency start function operating state. When

5.4.2.3 have one of the following conditions, fire pumps should start automatically.

a) When the device is lower than the outlet pressure continues 10s set fire starting pressure p2;

b) When the device while receiving the fire alarm and fire low water pressure alarm signal;

c) When one of the devices receiving the fire alarm or fire low water pressure alarm signal, and also receives an external fire alarm Letter No time.

5.4.2.4 Where the emergency type equipment when the outlet pressure reaches the fire starting pressure p2, the device should output the fire alarm signal.

5.4.3 Fire exit run state

5.4.3.1 When manually start the fire pump, should be shut down manually.

5.4.3.2 When the fire pump start automatic mode, in addition to the device outlet pressure loss of pressure persists for more than 5min circumstances permit Automatic shutdown, the shutdown should be manually operated.

5.4.3.3 equipment should have fire pump manual emergency shutdown manipulator (button) to exit the fire manner.

5.4.4 Pump Switching

5.4.4.1 When an electrical fault in the working pump or regulator can not achieve the desired capacity, the regulator should be able to spare pump automatic and manual switching.

5.4.4.2 When the fire service pump electrical faults occur or can not achieve the desired capacity, the standby fire pump should be able to automatically and manually.

5.4.5 Inspection

5.4.5.1 equipment should have a manual inspection and inspection prompts, which prompted the inspection period should be set on demand, but it should not exceed the longest period 360h. Operation

5.4.5.2 inspection should be simple, should be specified in the "Instruction Book". Hourly

5.4.5.3 fire pump should start running inspection station, each pump rated conditions run time should not be less than 2min. Acoustic fault should appear in

5.4.5.4 inspection, light alarm.

5.4.6 Run Record

5.4.6.1 Device control cabinet should be set up to run the recording apparatus.

5.4.6.2 recording information which shall include at least equipment outlet pressure, type and time of alarm and failure, fire pumps work like State and so on.

5.4.6.3 recording information acquisition interval should not exceed 6h, the recording device continuously records storage capacity should meet not less than 180d Requirements.

5.4.6.4 recording device should be set to the standard data output port, its internal storage data should be exported to display and store.

5.5 water supply capacity

5.5.1 pressure tank water supply

5.5.1.1 Effective water volume according to the provisions of

6.6.1 test, the device should not be less than the nominal value.

5.5.1.2 was tested according to the requirements of 6.6.2, add water volume of not less than 150L, a buffer volume of water not less than 150L.

5.5.2 Water Pump

5.5.2.1 pump regulator should be completed by the volume V1 supplementary water supply in the 30s ~ 300s time. Regulators pump 125% of the nominal flow When the outlet pressure should not exceed 65 per cent of the nominal working pressure of the pump.

5.5.2.2 Fire Pump flow in fire rated pressure not less than the fire px under the rated working flow Qx.

5.5.2.3 Fire Pump Fire reaches 150% of rated flow rate Qx work equipment outlet pressure should not be below the rated working pressure px Fire 50%.

5.5.2.4 Parallel operation of fire pumps press fire rated working pressure px the water flow of not less than a single pump flow rate at this pressure 90% of the sum.

5.6.1 Regulators operational stability

6.7.1 Test Method equipment shall be provided continuous operation 24h, the device should not have any trouble.

5.6.2 Fire Pump running stability Fire Pump Under Fire rated working pressure px continuous operation 6h, pump and control system should not have any trouble.

5.6.3 Fire Pump consecutive starts By manipulating the emergency fire pump start button cabinet panel of six consecutive starts, pump and control system should not have any trouble.

5.7 sealing performance

5.7.1 hydraulic seal Working withstand pressure equipment parts, hydraulic seal test duration 15min at

1.1 times the maximum working pressure of the equipment, it is not It should leakage.

5.7.2 Pneumatic Seals Working withstand pressure equipment parts, sustained 15min in pneumatic seal test

1.1 times the maximum working pressure of the equipment, it is not It should leakage.

5.8 Pressure strength Work equipment parts to withstand water pressure at the hydrostatic strength test device 2 times the maximum working pressure, the sustained 5min, there should be no Leakage, no macroscopic deformation or damage.

5.9 operating noise The maximum noise equipment operating state regulator should not exceed 90dB (A).

5.10 pressure tank

5.10.1 pressure display

5.10.1.1 pressure tank should be installed pressure display and control instrument.

5.10.1.2 qi type pressure tank pressure taps should be located in the regulator regulate the water level below the lower limit; capsule pressure tank pressure taps should be located at the top of the tank, Take the tank pressure should be measured. Monitoring

5.11.1 Pump regulator

5.11.1.1 regulator pump material shall meet the requirements of GB 6245.

5.11.1.2 Regulators shall be provided with standby pump pump, pump and spare pump work should be the same nominal operating capacity.

5.11.1.3 regulator pump single pump nominal flow rate should not exceed 5L/s, not less than the nominal outlet pressure (p4 p3)/2, and should not be high In p4.

5.11.2 Fire Pump

5.11.2.1 fire pump performance should be consistent with GB 6245 requirements.

5.11.2.2 Fire Pump allocation ratio should not be more than two, one standby, the standby pump and pump work should be the same nominal operating capacity.

5.11.2.3 fire pump single pump nominal flow rate of not less than 10L/s, the nominal outlet pressure of not less than fire rated working pressure px.

5.12 pipe valves and accessories

5.12.1 pump inlet conduit

5.12.1.1 equipment should be set to dual annular inlet conduit, two inlet pipe inlet side gate valve should be installed, water pipe diameter should be the way to achieve Shared pipeline to meet all water pipeline pump water.

5.12.1.2 pump inlet or inlet pipe should be installed at the vacuum gauge.

5.12.1.3 water pipe installation equipment filtration apparatus, water filtering apparatus should not affect the pump.

5.12.2 pump water pipes

5.12.2.1 pump out the well pipe valve outlet installed nominal diameter greater than the diameter of the pump outlet.

5.12.2.2 pump nozzle combination of valves and accessories installed pipe, in the nominal pump flow rate should not exceed the maximum pressure loss pump 5% of the nominal pressure.

5.12.2.3 pump outlet should have measures to ensure that at the end of the ATC safety boot.

5.12.2.4 pump outlet pipe should be installed pressure gauges, pressure gauge range not less than the maximum working pressure and pump the maximum allowable inlet pressure 2 times of the sum.

5.12.3 pressure tank water pipe

5.13.1 Pressure control instruments

5.13.1.1 Pressure sensor accuracy should not be less than 1.5, the upper range of not less than

1.5 times the maximum working pressure of the equipment.

5.13.1.2 Remote pressure gauge accuracy of not less than 1.6, the upper range of not less than

1.5 times the maximum working pressure of equipment, the minimum shown Value should be able to meet the requirements of the control pressure.

5.13.1.3 pressure gauge accuracy not less than 1.6, the upper range of not less than the device maximum working pressure of

1.5 times the pressure control zone Between at least three times the minimum value should be shown.

5.13.1.4 electrical contacts in the pressure control process, the pointer should not be stagnant and beating.

5.13.2 Pressure Switch Pressure switch performance should meet the requirements of GB 5135.10.

5.13.3 flow indicator Flow indicator performance should meet the requirements of GB 5135.7.

5.13.4 Level control instrumentation

5.13.4.1 level control instrument measuring range should meet the control requirements, a minimum indication should not exceed 10mm.

5.13.4.2 pressure tank liquid level control instrument configuration should not be less than the nominal maximum working pressure of the pressure tank.

5.14 control device

5.14.1 control cabinet

5.14.1.1 cabinet should frame structure, dimensions should be consistent with GB/T 3047.1 requirements.

5.14.1.2 Cabinet protection rating of not less than GB 4208 IP31.

5.14.1.3 cabinet surface should be smooth, the coating should be be...