Flow meter resistant to acid and alkali corrosion

The flow meter comprises a flow meter body, a valve plate, a threaded rod, a sleeve, an electric heater and a ceramic partition plate, an inclined plate is welded to the bottom of one end in the sleeve of the flow meter body, a first flange plate is installed at the top of the sleeve through a bolt, and a connecting rod is inserted into the bottom of the first flange plate in a penetrating mode; avalve plate corresponding to the inclined plate is installed at the bottom end of the connecting rod through a bolt and located between the inclined plate and the inner wall of the sleeve, a slidingblock is installed at the top of the connecting rod in a welded mode and penetrates through the first flange plate, a guide rod is welded to one end of the top of the first flange plate, and one end of the sliding block is arranged on the guide rod in a sliding and sleeving mode. The whole device can be used for carrying out filtering nuclear heating flow assisting treatment on the liquid materialpassing through the flow m