Dosing equipment is a complete set of machinery with dosing, mixing, liquid transport and intelligent control functions for water circulation systems requiring the addition of buffer solutions, reverse osmosis scale inhibitors and bactericides to accurately add and add water treatment chemicals. Metrological verification. In the water supply and drainage treatment, a variety of organic chemicals are often added to suppress dirt, remove bacteria and algae, solidification, and inclined plate sedimentation tank to achieve the goal of purifying water. Dosing device is a kind of equipment in the water treatment device, which undertakes the manual dosing of various sewage treatment chemicals. The machine equipment can be fully equipped with chemicals and water, melt, perfect and metrological verification according to a certain percentage.

The key of the dosing device is composed of a solvent tank, a dosing pump, a filter device, a valve, a check valve, a pressure gauge, a storage tank, a liquid level transmitter and a control box. The melter is equipped with a level transmitter, fully automatic equipment required for practical operation, such as low level meter alarms and gate valves.

Common problems of dosing devices and solutions:

1. There is gas in the pipeline of the pump body: exhaust the gas.

2, the packing leakage is more serious damage: tighten or replace the packing.

3, the inlet and outlet check valve is not tightly closed: check the high pressure gate valve, clean or replace the valve ball.

4, the gas from the air inlet contact into: tighten the connection of the external thread or sealing jack.

5, the inlet and outlet check valve sealing gasket leakage: check the sealing surface or replace the sealing ring.

6, gear oil is not clean, resulting in three valves in the work of the abnormal: replace the clean gear oil.

7, the valve often vibrates: adjust the tightness of the torsion spring, find the reason and take measures to clean up.

8. The diaphragm in the inner cavity is not closely sealed: tighten the screw at the end of the pump impeller or find the reason for cleaning.

9. The inlet pipe is blocked or the friction resistance is very large: make the inlet pipe smooth and take methods to reduce the friction resistance.

10, the oil supply valve does not provide oil, the oil provided is not enough, often provided oil or leakage: adjust the spring of the oil supply valve or repair the oil supply valve, clean and replace the bearing steel ball.

The dosing device adopts mechatronics structure and can be divided into mobile and mobile (trolley type) when installed. Each type of liquid feeding equipment is equipped with mixer, liquid feeding system software and fully automatic control system. A number of fixed guide rails can form a whole, coupled with the DC frequency conversion automatic control system, can complete the local control, remote control automatic control system, manual and automatic feed each other. The dosing device has the advantages of compact structure, small size, low noise, smooth operation, convenient installation and operation.