Electric desalting and dehydration apparatus

An electric desalting and dehydration apparatus, comprising an oil inlet distributor of an upper electric field, wherein the oil inlet distributor comprises oil inlet distributing pipes and an oil inlet branch pipe;

• the oil inlet distributing pipes are arranged in a water tray of an electric desalter, and below a ground electrode of the electric desalter;
• the oil inlet branch pipe is connected to the oil inlet distributing pipes to supply crude oil into the oil inlet distributing pipes;
• and the oil inlet distributing pipes are provided with oil outlets on both sides of the oil inlet distributing pipes in a horizontal direction;
• wherein the electric desalting and dehydration apparatus further comprises an upper-field water-tray automatic sand flushing device;
• the upper-field water-tray automatic sand flushing device is connected to the water tray in the electric desalter, and comprises an automatic sand removal plate, a backwash inlet pipe, backwash pipes, sprayers, and a downpipe;
• the automatic sand removal plate is provided on an upper side of a bottom surface of the water tray and below the oil inlet distributing pipes;
• the water tray is V-shaped, and correspondingly, a trough is formed at the bottom of the water tray;
• the backwash pipes are provided above the automatic sand removal plate, and the sprayers are evenly distributed on each backwash pipe;
• the backwash inlet pipe is connected to the backwash pipes to supply water to the backwash pipes;
• and the downpipe is connected to the trough at the bottom of the water tray.