First, the pump arrangement (1) open-air layout The pump is generally arranged in the gallery below or on the side, can also be arranged near the suction device, the main advantage of good ventilation, easy operation and maintenance. If the pump is arranged below the pipe gallery, the centerline of the pump outlet should be aligned and 0.6 m from the center of the pipe gallery column. (2) semi-open-air layout semi-open-air pump layout is suitable for rainy areas, the pump is usually arranged in the bottom of the pipe, the roof of the upper part of the pipeline. Or the pump is arranged on the lower ground of the frame, with the frame platform as the ceiling. According to pump layout requirements, the pump arranged in a single row, double row or multiple rows. (3) Interior layout The indoor layout of the pump is suitable for cold or sandy areas, as well as the process has special requirements of the occasion. Second, the pump layout requirements l For open-air or semi-open-air layout of the pump, the pump and the prime mover generally axis and the vertical axis of the pipe gallery. For indoor arrangements, the pump should be placed in separate rooms with the other pumps and separated by a firewall when the temperature of the liquid being transported is above the auto-ignition point or when the liquid being transported is liquefied. Pumps arranged in rows shall be arranged in groups according to the requirements of fire protection, operating conditions and material properties. When the pumps are open-air or semi-open-air layout, combustible liquid pumps with operating temperatures equal to or higher than those of self-ignition points shall be arranged in a centralized manner. Between flammable liquid pumps should be not less than 4.5m fire prevention distance; and liquid hydrocarbon pump should be not less than 7.5m between the fireproof spacing; Pump arranged in rows, the pump should be out. When the pump is arranged in two rows, the power ends of the two rows of pumps should be opposite to each other with the maintenance channel in the middle; when the pump is arranged under or outside the main pipe, The minimum net width is 2m and the minimum net height is 3m. The width of the operating channel in front of the pump should not be less than 1m. When the pump is arranged under or outside the pipe gallery, whether single or double row, the centerline of pump and driver Should be vertical with the pipe gallery; pump arranged in the room, the clearance of two rows of pumps should not be less than 2m. Pump or pump side and the distance between the wall and the wall should meet the operation and maintenance requirements and should not be less than lm; In addition to the small pump installed on the basis of the joint, the clearance between the two pumps should not be less than 0.7m; pump basis Surface should be 200mm above the ground. The minimum shall not be less than 100mm; installed in front of the pump suction filter, the pump should be considered based on the height of the filter can be easily cleaned and disassembled; vertical pump arranged under the main gallery or below the framework should be set aside above the pump body installation And maintenance space required; pumping hazardous materials (such as propylene? Hydrogen cyanide, etc.) of the pump room and other pumping stations should be separated from the set; fire pump room should be provided with dual power source; public spare pump should be arranged in the middle of the corresponding pump Location; pump layout should be considered flexible design requirements. Pump arranged in the room, generally do not consider the requirements of motor vehicle maintenance access. The clearance between the pump end or pump side and the wall should not be less than 1.2 ~ 1.5m, the clearance between two rows of pumps should not be less than 2m; the positions of the piston and the pull rod should be left on the power side and the pump side of the steam reciprocating pump; When the vertical pump is arranged under the pipe gallery or under the frame, the space required for installation and maintenance of the pump body should be reserved above it. At least one side of the pump should be reserved for maintenance when the pipe is arranged. Third, the pump installation spacing The clearance between the two pumps should not be less than 700mm, the pump front-end operating channel should not be less than 1000mm, for multi-stage pump, pump front access channel width should not be less than 1800mm. General pump front access channel width should not be less than 1250mm, in order to pass a small forklift.