Integrated manufacturer of buried box pumps

Integrated manufacturer of buried box pumpsXBZ-252-0.40/35-M-II

What is a prefabricated BDF buried (anti floating) box pump integrated large mold pressure block water tank? What is the structural form? Many customers have doubts, today the editor will talk about the prefabricated BDF water tank.

Firstly, let's talk about what BDF is:

BDF material: B refers to stainless steel; D refers to hot-dip galvanized steel sheet (many unscrupulous merchants use low-cost cold galvanizing instead of hot-dip galvanizing, but in fact, the requirements in the atlas are hot-dip galvanizing); F refers to composite type; Overall, it is a composite material of stainless steel and galvanized steel sheet;

BDF structure: The thickness of stainless steel plate is generally 0.4-0.5mm, and the thickness of galvanized steel plate is 2.5mm-4mm;

Types of BDF composite panels:

1. 90 ° manual composite type (first molding stainless steel, then molding galvanized sheet, and then manually laminating stainless steel sheet and galvanized sheet together), the price is cheap, but it is unreliable, prone to water leakage, and not aesthetically pleasing;

2. The price of the four corner welding type (similar to the usual stainless steel molded plate, which is formed by mechanically molding stainless steel and galvanized plate into a composite mold and then welding the four corners) is moderate; Easy to leak and crack

The third type is 45 degree non welded one-time molding (four corners non welded, strong sealing, relatively high price), which is now widely used in this specification.

Integrated manufacturer of buried box pumpsXBZ-252-0.40/35-M-II

What does the assembled BDF buried (anti floating) box pump integrated large mold pressure block water tank installed by Yancheng Hongshuai look like?

The side panel specification is 1m * 3m (3-meter-high water tank) and 1m * 2m (2-meter-high water tank), which means a large molded block buried water tank without horizontal joints.

The top plate is made of 1m * 1m hot-dip galvanized steel sheet with a thickness of 3.0mm, and the sheet is formed by one-time stamping at a 45 ° angle.

The fire pump station water tank is connected by bolts, and the anti-seepage and leak proof measures are carried out using EPDM rubber sealing strips.

Reinforced structural hot-dip galvanized I-beams or composite reinforced I-beams in the pump room;

The control cabinet in the fire pump station has the functions of automatic start, manual start, remote control start, mechanical start, high and low water level alarm, automatic low-frequency inspection and manual power frequency inspection, fault memory export output, flow detection, remote monitoring and communication.

The prefabricated BDF buried (anti floating) box pump is integrated with dual inlet, and is equipped with gate valves, backflow preventers, filters, remote control floating ball valves, and installed in the manhole of the water tank; The water inlet adopts top plate water inlet and is 150mm higher than the effective water level;

According to the new fire safety regulations, the use of submersible and assembled BDF buried (anti floating) box pumps is prohibited. All integrated pumps use dry-type electric motors. The drawings show that dry-type electric motor well pumps are used, but the cost of this type of pump is high. So in general, dry motor vertical pipeline pumps are used.

Some customers may ask what is the integrated anti floating buried box pump. Firstly, we need to know the effect of anti floating?

When the weight of the underground structure itself (including the overlying soil) cannot resist the buoyancy of groundwater, the underground structure will float up, causing deformation and damage to the structure. Therefore, anti floating design is required. Engineering anti floating design includes overall anti floating verification and local anti floating verification. Although the overall anti floating verification can ensure that the underground structure will not float as a whole, it may not necessarily guarantee that the bottom plate of the structure will not crack or deform.