1, according to the buried sewage treatment equipment installation plan and foundation plan, prepare the foundation to install the size of the floor plan size shall prevail, do a good job of the concrete footing, the foundation requires an average bearing pressure of 5t/m2, the foundation must be level and should be in the end of the maintenance period of the concrete foundation pouring before the installation, such as Equipment installed in the floor below, the foundation from the floor relative elevation according to the size of the plan shall prevail, while digging around the width, length must be away from the foundation edge line more than 500mm, in order to pipe installation.
2, pipeline installation and connection should be considered in the equipment in place, the equipment in place must be in accordance with the instructions of the weight of the equipment, with the size of the crane tonnage, the order of installation according to the site against the map in place, the location of the cylinder, the direction can not be placed wrongly, and each other must be correctly spaced.
3, according to the installation plan, connecting pipeline, equipment in place after connecting the pipeline with a rubber gasket fastened, so that the connection does not leak.
4, buried sewage treatment equipment after the installation of equipment and the foundation floor must be connected and fixed, absolutely guarantee that the equipment does not make the flow of floating, at the same time, the equipment must be injected into the sewage (no sewage, with other sources of water or tap water instead of), full of more than 70% of the degree of filling must be achieved to prevent the equipment from floating. At the same time, check the pipeline has no leakage. Water test each pipe junction must not leakage, at the same time, the equipment is not subject to ground water rise, and make the equipment misalignment and tilt.
5, equipment installation is completed without error, you can fill in the equipment with soil around the gap in the tamping, and leveling of the ground filling should pay attention to:
(1) equipment manhole cover must be higher than the floor about 50mm;
(2) equipment manhole cover must be higher than the floor about 50mm;
(2) Soil must not be allowed to block the air inlet on the manhole cover.
6, the electric control cabinet control line and equipment connected, wiring, pay attention to the underwater aerator and submersible pump motor steering, such as the basement control cabinets should be placed in a ventilated place to keep dry, the general control cabinet can not be placed in the open air. Must prevent sun, rain and so on. In order to avoid control board and terminal leakage, burned control board.
7, buried sewage treatment equipment Note:
(1) equipment must be installed to ensure that the rain does not accumulate water;
(2) equipment must be in the water outlet relative to the ground 0.4m below;
(3) No heavy objects shall be pressed on top of the equipment, and no large vehicles shall pass by (meaning no special design);
(4) The equipment shall not be pumped out of the internal wastewater in general, in order to prevent the equipment from being floated by the groundwater.
8, note that the equipment installation diagrams and piping connection diagrams according to the standard connection and layout, such as the user requirements can be arbitrarily arranged, but must be proposed in the contract.
9, connected to the fan, pump control lines, and note that the fan, pump steering must be correct.