Construction of underground fire water tank in Guilin, Guangxi
BDF Water tank assembly method
one Assemble and assemble the moulded plates first, and use bolts and sealing rings to seal and connect the plates. According to the size of the water tank × wide × High for bolt screwing;
two After assembly and combination of several plates , Just do the bottom plate assembly , First, size the bottom plate of the water tank , Then lay the bottom plate on the water tank foundation for sealing connection , After bottom plate connection , Conduct fire oil inspection or visual inspection on the sealing part;
three After the bottom plate is connected, the wall plate and bottom plate shall be connected. For bolt connection, one side shall be placed on the bottom plate of the water tank. After the four walls are placed, the blank holder shall be adjusted and connected. The relative angle of the ruler shall not exceed 2mm, It is required to be in a straight line, and the four corners are required to be perpendicular to the junction of the bottom and the wall;
four After the bottom of the water tank and the wall are sealed and connected with bolts and sealing rings, the top and wall are connected. The edges are basically on the same horizontal line. The water tank manhole is connected to the ** Generally, it is located near the floating ball of the inlet hole;
five After the tank body is connected and sealed, the water inlet, water outlet, overflow, sewage discharge, fire fighting hole and rear escalator shall be installed near the manhole;
six . The internal lacing bar of the box is made of stainless steel plate and folded into right angle steel and channel steel by angle bender. The lacing bar is connected from the bottom up 50cm On the first floor, * The vertical and horizontal spacing of the first floor is 1m×1m, * Second floor distance * First floor 50cm, Height and spacing, and so on. The wall and wall, wall and bottom plate, wall and top plate are connected by angle steel;
seven After the completion of various works, if the site is ready for water test, the water tank shall be filled with water for pressure test, and the sealing around the water tank shall be checked for leakage or seepage. 
Buried fire pool The internal details of the configuration mainly include:
（ 1) Tie bar
（ 2) Station post
（ 3) Batten
（ 4) Screw
（ 5) Accessories: manhole, ladder, sump, anti-corrosion treatment, etc.
（ 6) Pump room: the pump room is reinforced with reinforced I-steel, and 14 # I-steel is used for reinforcement.
Internal detail diagram of underground fire pool
1. Φ 10 * 30 hot-dip galvanized screw is assembled with environment-friendly water resistant * * * adhesive strip
2. The water outlet pipe of the fire protection system is a two-way water outlet.
3. The water tank module uses hot-dip galvanized steel plate 3mm and 0.4mm304/2B food grade stainless steel plate to press and composite through equipment to make it closely fit, so as to meet the requirements of steel plate material strength, stainless steel corrosion resistance, etc.
4. The water tank shall be equipped with * * dry motor long shaft pump (dry motor deep well pump) or dry motor vertical pipeline pump fire pump
5. With automatic control and manual control intelligent control cabinet, remote operation function, complete protection function and reliable operation.
6. After the water tank is assembled and formed, the lacing bar and the top column shall be installed. The lacing bar shall be Φ 40 hot-dip galvanized split tension, and shall be installed vertically and horizontally within 1m. Φ 40 hot-dip galvanized pipes shall be used for the top column, 4 pipes per square meter shall be uniformly distributed and sealed.
7. The pump is internally reinforced with 14 # I-steel, which can achieve good pressure bearing effect.
