Installation of Shanghai Underground Fire Water Pump

Installation of Shanghai Underground Fire Water Pump

1The foundation of the fire pump station adopts whole slab foundation and beam foundation.2The anti-seepage and leak proof measures for the water tank of the fire pump station are implemented using EPDM rubber sealing strips and structural adhesive.3The diameter of the vent pipe of the fire pump station adoptsdn100Pay attention to leading to the water collection pit and keep it higher than the water collection pit.4The ventilation system used in the fire pump station pump room is:24hNo powered ventilator or ventilation duct (with insect proof cover).5The heating system used for the fire pump station pump room is: for pump rooms with temperatures below5Set up an automatic constant temperature device or bury it under the frozen soil layer at ℃.6The fire resistance rating of the fire pump station is level two.7What are the plan dimensions of the maintenance holes in the fire pump station pump room2m×2m.8The material of the corner staircase in the fire pump station pump room is hot-dip galvanized steel plate.9Install magnetic flap level gauges or pressure transmitters in the pump room of the fire pump station to display the water level in the water tank.10The outlet pipe of the fire protection system in the fire pump station adopts dual outlet.11The 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.12What is the protection level of the control cabinet in the fire pump stationip55.13The inspection cycle for the water pump in the fire pump station is7Tian, the inspection time for each pump each time2min.14Ingb50974-2014The effective volume of the high-level fire water tank of the temporary high-pressure fire water supply system should meet the requirements of the initial fire water consumption. Underground fire water pool fire automatic constant pressure water supply equipment15The low effective water level of the high-level fire water tank should meet the static water pressure at unfavorable points of the water fire extinguishing facilities.16The main components of the pump shaft and impeller for spray pumps, fire pumps, and pressure stabilizing pumps should be made of stainless steel, and the casing should be made of ductile iron.17The overflow pipe of the water tank in the pump station is designed according to the inlet diameter2Design overflow pipes and lead them to the collection pit for indirect drainage.18The inlet of the water tank in the fire pump station adopts dual inlet, and is equipped with gate valves, filters, remote control float valves, and installed in the manhole of the water tank; The water inlet adopts a top plate for water intake and is high The pump station adopts an integrated structure of anti floating box pump, consisting of an assembled water tank and an integral pump room. The bottom reinforced concrete foundation is connected to the pump station side plate and profile as a whole, eliminating the installation of the box bottom plate while the buoyancy of groundwater acts on the bottom plate. It not only solves the problems of leakage of the original structural box bottom plate and long construction period, but also saves raw material and labor costs. This pump room is placed in the water tank and can integrate multiple functions according to customer needs. A single pump station can be made into a fire hydrant for water supply, etc; The dual pump station can integrate fire hydrant water supply and automatic sprinkler into one.

Advantages of buried water tanks:1.Easy maintenance and reliable operation. Low cost, no surface area, can be placed under the owner's open space or green belt.2.Space saving: The water pump and pump chamber are placed in the water tank and fixed on a dedicated module for the integrated pump station.3.Easy disassembly and long service life: Due to the use of prefabricated stainless steel water tanks, the previous welding method has been changed, and bolt assembly has strong applicability and easy installation, without the need for specialized equipment.4.Easy emptying: Due to the use of a new type of submersible fire pump, it can be directly submerged without the need for special air discharge. As long as the water tank level is within the specified level, it can directly enter the fire water supply state.5.Frost free cracking: The interior of the fire pump water tank will not be burned out due to freezing in winter.6.Low noise: Equipped with a water immersed motor and water pump, it greatly reduces the operating noise.7.Less investment: The equipment has a small area and does not require the construction of a pump room or large water storage tank, saving a lot of investment.

Installation of Shanghai Underground Fire Water Pump

1、 Composite typeBDFThe module uses hot-dip galvanized steel plate3mmand0.4mm304/2BFood grade stainless steel plates are pressed and composite formed by equipment to achieve a tight fit, thereby meeting the requirements of steel plate material strength and stainless steel corrosion resistance.

2、 After compression molding, punching molding is carried out through equipment to meet the assembly requirements of standard modules.

3、 On site assembly and selection of foundation channel steel10#National standard hot-dip treatment, each beam1Composed of meter spacing combinations and so on.

4、 Assemble according to the atlas and technical requirements, usingΦ10*30The hot-dip galvanized screws are assembled with environment-friendly, water-resistant and anti-aging adhesive strips. After the water tank is assembled and formed, the lacing bars and top columns are installed. Reinforcement selection: Φ48Hot dip galvanized pull, no1Installation of meters vertically and horizontally crossing. The top pillar is selected with a diameter of Φ48Hot dip galvanized pipes per square meter4Root evenly distributed sealing treatment.

5、 Install the pump room according to the pump station, inspect and accept the screws on the surface of the pump room after installation, and ensure that all fasteners are tightened without any omissions.

6、 Clean up all remaining accessories and garbage in the water tank.

7、 Cover the soil and prepare the site properly.

Integrated customization of buried box pumps, traditional welding methods are difficult, and thermal stress can cause greater damage to the equipment; Brushing epoxy corrosion-resistant materials may cause cracking, peeling, and other phenomena due to the influence of surface adhesion and expansion coefficient, further exacerbating corrosion. The product quality varies greatly, and many problems have arisen during use, as follows: 1 ，1The anti floating buried box pump integrated equipment adopts a pipeline pump compartment pump room design. The components in the lower control cabinet are prone to malfunction and their service life is reduced. Many manufacturers have added dehumidifiers, axial fans, and ventilation hoods, but the actual effect is not ideal. Suggest making the control cabinet an outdoor unit.2The anti floating buried box pump integrated equipment adopts a push-pull design for the maintenance port of the pipeline pump compartment pump room. In rainstorm, rainwater will flow into the pump room along the wall, and the design here needs to be improved.3The problem with pre embedded pipes is that they often deviate due to manual placement, and the equipment needs to be made on site. Cannot be made into a complete set of equipment in the factory, which is not conducive to standardization,4The advantage is that it has a good anti floating effect. At present, the most effective methods are to use polymer composite materials, among which the Fushilan series is more mature in application. Adopt corresponding technical products for different devices, operating conditions, and forms of corrosion and leakage