1、 Building site selection: 1
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Surrounding environment (1) factory and warehouse: ensure the safety of the unit and its adjacent enterprises and residents; (2) inflammable and explosive materials: must be set at the edge of the city or relatively independent safety zone; (3) filling station, supply station and pressure regulating station of inflammable and explosive gas and liquid should be set at a reasonable location, meeting the requirements of fire and explosion prevention
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2
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Topographical conditions (1) the warehouses for class A, B and C liquids should be arranged in low-lying places to avoid the threat of fire to the surrounding environment; if they are arranged in high-lying places, measures should be taken to prevent the liquid from flowing away; (2) the acetylene station and other enterprises that produce combustible gas in case of water and are prone to fire and explosion are strictly prohibited to be arranged in the places that may be submerged by water; (3) the production line should be set up in the place where the fire is likely to happen And the enterprises storing explosives should make use of the terrain and choose the place surrounded by mountains and without buildings nearby
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3
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Dominant wind direction (1) LPG storage tank area: it should be arranged on the windward side of the annual minimum frequency wind direction of the unit or the local area, and the place with good ventilation should be set independently; (2) the open storage yard of flammable materials: it should be set in the place with sufficient natural water source, and it should be arranged on the windward side of the annual minimum frequency wind direction of the unit or the local area
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2、 Fire safety of the overall layout of the city: 1
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Factories and warehouses of inflammable and explosive materials, class A, B and C liquid storage tank area, liquefied petroleum gas storage tank area, combustible and combustion supporting gas storage tank area, combustible material storage yard: edge of the city (area) or relatively independent safety Zone + upwind side of the minimum frequency wind direction of the city (area) in the whole year
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2
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Factories of combustible gas, steam and dust and large-scale LPG storage bases: the windward side of the wind direction with the minimum frequency throughout the year + keep enough fire safety distance from the area with concentrated personnel
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3
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Large and medium-sized petrochemical enterprises, oil depots and LPG storage tank stations: (arranged along cities and rivers) are arranged in the downstream of urban rivers + to prevent liquid from flowing into rivers
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4
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Automobile gas station: far away from people concentration places and important public buildings
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5
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First class gas station, gas station, combined gas station and CNG gas station: areas outside the urban built-up area and central area
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6
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Special terminals for transporting liquefied petroleum gas and other inflammable and explosive chemicals: (1) the distance between the terminals and other goods terminals shall not be less than twice the length of the largest shipping vessel; (2) the distance from the main channel shall not be less than twice the length of the largest shipping vessel
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7
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Distance between center lines of block roads: within 160m
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8
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Municipal fire hydrant: it shall be arranged along the block road where fire engines can pass, and the spacing shall not be greater than 120m
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9
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Areas without municipal fire hydrant or insufficient fire water supply and no fire truck access: increase the diameter of water supply pipeline and municipal fire hydrant, or build fire water reservoir with capacity of 100-200m3 according to specific conditions
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3、 General layout of common enterprises: (1) Petrochemical Industry: chemical enterprises are located on the windward side of the minimum frequency of the whole year, with more than 2 entrances and exits, different directions, circular lanes, and enterprise fire stations are arranged on the windward side of the minimum frequency of the whole year
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(2) Thermal power generation: the fence is 1.8m, when the plant fence is used as the fence, the height is not less than 2.5m, and the solid wall
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Two entrances and exits, circular
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(3) Iron and Steel Metallurgy: the total volume is less than 200000 m3, the distance between tank wall and enclosure should not be less than 15 m, the total volume is more than 200000 m3, and the distance should not be less than 18 M
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The distance between tanks shall not be less than 2m
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The gas pipeline shall not be buried, and the oxygen pipeline shall not be buried in the same trench as the electricity, oil and corrosive liquid pipeline
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The following statement about building location is incorrect
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A
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The warehouse for storing class A, B and C liquids should be located at a lower place
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B
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the liquefied petroleum gas storage tank area should be located at the downwind side of the minimum frequency wind direction of the unit or the local area
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C
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The enterprises producing and storing explosives should choose the place surrounded by mountains and without buildings nearby
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D
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the factories and warehouses producing and storing inflammable and explosive dangerous goods must be located in the city Analysis of edge or relatively independent safety zone: the LPG storage tank area should be arranged on the windward side of the minimum frequency wind direction of the unit or local area, B error
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2
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There is a thermal power plant in a city, which is arranged in the ignition tank area of the plant, and the height of the fence is not less than () m; when the plant fence is used as the fence of the ignition tank area, the height of the solid fence is not less than () M
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A
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1.8, 2.5 b.2.5, 1.8c
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2.2, 2.5 d.2.5, 2.2 analysis: fence height of thermal power plant shall not be less than 1.8m, fence height of plant area shall not be less than 2.5m, a is correct..
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