2.1 cylinder
The 2.1.1 cover shall be made of glass fiber reinforced plastic cover and open pump cover plate. The cover material can be made of lightweight materials such as glass fiber reinforced plastic or aluminum alloy.
2.1.2 cover inside and outside surface should be flat, there shall be no crack depth more than 2mm, there shall be no delamination, fiber, resin, naked nodule inclusion, the color was foreign body uneven.
2.1.3 glass fiber reinforced plastic (GRP) cylinder material shall be composed of anti-corrosion layer, anti permeability layer, structure layer and outer protective layer, and the thickness of each layer is shown in the figure. The outer protective layer shall be provided with anti ultraviolet material to prevent the aging under the sunlight. Integral prefabricated pumping station
2.1.4 overall cover should be anti slip measures. The antiskid cover can be made of glass fiber.
2.1.5 production of aluminum alloy cover plate should be non slip pattern plate, tensile strength should be 120MPa and above, the thickness of the plate should be 5mm and above (excluding the pattern). The cover flange shall be not less than 20mm.
2.1.6 cylinder with E-glass fiber roving and its products as reinforcing material and thermosetting resin as matrix, glass steel pipe winding process made by computer, uniform thickness. The hardness should reach 40HBa and above, the compressive strength should reach 120MPa and above, the hoop tensile strength 150MPa, the axial tensile strength 60MPa.
The inner lining layer of the 2.1.7 includes the inner layer and the inner surface layer, the total thickness is not less than 2mm, and the inner surface thickness is not less than 0.3mm. The minimum thickness of the pipe wall shall not be less than the nominal thickness specified in the drawings and technical documents approved by the prescribed procedures.
2.1.8 cylinder body shall be fitted with at least two external lugs.
2.2 base
2.2.1 should be the base structure base concave arc, the inner side of the pedestal can be designed according to the reserved or install mixer, crushing grille.
The tensile strength of the 2.2.2 base shall be 120MPa and above, and the hardness of the 40HBa shall be up to.
The peripheral skirt 2.2.3 base should be at least 2 drilled grouting holes, grouting hole diameter should reach DN100 and above.
The lower part of the base 2.2.4 should be concrete anti floating, on the basis of anti floating calculation to determine the design size of concrete slab, multi shaft pumping station and pumping station before and after the end should adopt the same floor structures, concrete strength grade cement floor should not be less than C40 diameter shall be not less than 10mm, the thickness should be not less than 250mm, shall be embedded in concrete floor anchor bolt for hoisting prefabricated pumping station into the pit after fixed. The concrete floor can be prefabricated, or can be directly poured into the foundation pit.
The weight of the base station 2.2.5 should be more than 1.5 times the total weight of the water pump, water pump to prevent the fixed junction vibration and resonance. Selection of shockproof component for dry pump station according to pump form.
2.3 service platform and automatic coupling system
2.3.1 integrated prefabricated pump station should be set up service platform.
2.3.2 service platform should be made of aluminum alloy or glass fiber reinforced plastic materials, service platform shall not be less than 450kg.
2.3.3 automatic coupling system in normal use shall not leak, and should be conducive to the lifting of the pump.
2.4 control cabinet
The size of the 2.4.1 control cabinet shall be in accordance with the provisions of GB/T3047.1 of the height of the 20mm, the basic dimensions of the panels, racks and cabinets.
The surface of 2.4.2 control cabinet should be smooth and well proportioned, and the welding place should be even and firm, and there should be no obvious distortion or burn through.
Electrical and electronic components in the 2.4.3 control cabinet shall comply with the relevant product standards.
The connection points of the 2.4.4 control cabinet should be firm, wiring shall comply with relevant standards and design drawings.
The color of the wire and bus in the 2.4.5 control cabinet shall comply with the relevant standards.
The color of the 2.4.6 indicator and button shall comply with the relevant standards.
At the bottom of the cabinet body 2.4.7 control cabinet shall be provided with a mounting hole of the fixed base.
The top 2.4.8 control cabinet should have the rings, so that the hoisting.
The protection level of 2.4.9 control cabinet shall be in accordance with the provisions of the current national standard "GB4208".
2.4.10 control cabinet should be equipped with a variety of intelligent sensors, unmanned, programming and remote control can be achieved.
The display function of the 2.4.11 control panel shall meet the following requirements:
1 control panel panel should have a display interface.
2 control panel should have power supply, current, voltage, etc..
3 the control panel can be opened and stopped.
4 control cabinet should be set pressure, actual pressure, frequency display.
5 control panel panel can have fault sound, light alarm display.
The electrical performance of 2.4.12 control cabinet shall comply with the following requirements:
1 the temperature rise of each part of the control cabinet shall comply with the provisions of the current national standard "electrical control equipment" GB/T 3797;
2 the electrical clearance and creepage distance between the live circuit of the control cabinet, the live parts or the grounding parts shall be in accordance with the provisions of the current national standard "electrical control equipment" GB/T3797;
Between 3 charged loop equipment in electrified loop and conductive part insulation resistance measured by the nominal voltage of at least 1000 /V;
4 dielectric strength should be consistent with the current national standard "electrical control equipment" GB/T3797;
5 safety protection grounding metal cabinet control cabinet should be reliable grounding protection.
2.5 submersible pump
2.5.1 submersible pump should have the relevant production license and product certification. Submersible pump failure time should not be less than 2500h.
2.5.2 submersible pump and pipe connection should be firm.
2.6 piping system
2.6.1 stainless steel pipe should be used. The material shall conform to the current national standard "GB/T12771 stainless steel welded pipe for fluid delivery".
With the application of 2.6.2 pipe fittings stainless steel.
2.6.3 pipe, pipe fittings, valve selection and connection method shall comply with the "outdoor drainage design code" GB50014 and "building water supply and drainage and heating engineering construction quality acceptance specification