Desander should generally be installed in front of the inlet pressure regulating device of the heating system or in front of the inlet of each equipment. The straight-through decontamination device is installed on a horizontal pipe, and the angle-through decontamination device can be installed on a pipe that turns at a right angle. The direction of the arrow on the shell must be consistent with the direction of the water flow. Sewage should be discharged regularly during operation.
A recoil manifold is installed at the outlet of the slurry pump to communicate with the slurry tank. The de-sander passes through the recoil manifold, which can disturb the deposited ballast in the slurry storage tank, so that the slurry storage tank will not cause silt and overflow due to long-term use. In order to reduce the wear of the recoil manifold, turn on the recoil manifold ball valve after opening the slurry pump and before closing the slurry pump, and let it close the ball valve after 10 minutes.
The desander is made according to the principle of rotating and sieving the solid particles in the fluid in the desander filter. When the water flows into the filter from the inlet at a certain pressure, it produces a strong rotating motion. Due to the different density of sand and water, under the combined action of centrifugal force, centripetal force, and fluid drag force, the low-density water rises and is discharged from the water outlet. , The dense particles are discharged from the sewage outlet at the bottom of the filter, and the individual tiny particles floating together along the water flow are filtered through the secondary filter device to achieve the purpose of sand removal.
1. The cyclone desander should be installed on the main pipe of the water supply pipe network and fixed on the base, and a bypass should be added between the inlet and outlet pipes.
2. In order to ensure the steady flow of the water inlet, a straight-through pipe equal in diameter to the water inlet should be installed in front of the water inlet of the equipment, and the length is equivalent to 10-15 times the diameter of the water inlet.
3. Sufficient maintenance space should be reserved around the equipment during installation.
4. During normal operation, open the inlet and outlet valves, close the drain valve and the bypass valve.
5. According to the sand content of the source water, discharge sand and decontamination regularly. Open the sewage valve during sewage discharge until clear water flows out. The sewage discharge process does not affect the normal water use of the system.
6. After the sewage discharge is over, close the sewage valve.
7. If the sand discharge pressure is insufficient, close the valve at the water outlet.