4results about How to "Avoid air lock" patented technology

This utility model relates to the field of hydraulic oil tank technology, specifically a hydraulic oil tank for a marine EHA power unit, comprising a tank body, an inlet, and a return outlet. The inlet is located at the top of the tank body, and a vent is located on one side of the inlet. A return outlet is located on one side of the top of the tank body. A filter screen limiting groove is provided in the return outlet, and a metal filter screen is installed in the filter screen limiting groove by screws. A sealing cap is installed at one end of the return outlet by clamping bolts. A return pipe is connected to one side of the sealing cap, and a sealing valve B is provided on the return pipe. An oil pump is installed on one side of the bottom of the tank body via a mounting base. The hydraulic oil tank for a marine EHA power unit facilitates the filtering of solid particles in the hydraulic oil, improves purity, facilitates recycling, and makes it easy to clean or replace the metal filter screen.

This application relates to the field of vacuum pumps, and more particularly to a vacuum pump drainage device, comprising a vacuum pump, a return water pump, and a return water well. The vacuum pump, the return water pump, and the return water well are sequentially connected via a return water pipe. Multiple vacuum pumps are provided, and at least one water collection tank is provided between each vacuum pump and the return water pump. The end of the water collection tank closest to the vacuum pump is open, and the height difference between the bottoms of two adjacent water collection tanks is 10-20 cm. This application has the effect of ensuring smooth water return from the vacuum pump and eliminating air trapped in the return water pipe.

This utility model relates to the field of petroleum filtration technology, specifically a filter cap screen tube filtration device. The filter cap screen tube filtration device includes a filtration chamber, which is connected to a gas-phase preliminary separator via a connecting elbow. An inlet pipe is connected to the filtration chamber. A screen tube is installed inside the filtration chamber, and a perforated protective sleeve is installed on the outside of the screen tube. A filter cap coarse filter screen is installed inside the connecting elbow and is connected to the screen tube. This device, through the coordinated action of an inclined deceleration plate, an inclined flow baffle, a collision preventer, a collision preventer end cap, and a perforated protective sleeve, reduces the impact of sediment on the screen tube and removes large particulate impurities. During backwashing, a screw drives a sealing scraper to scrape away impurities from the screen tube surface, including sediment that is difficult to remove between the filter holes, ensuring the filtration performance of the screen tube and extending its service life.

The utility model relates to the technical field of henhouse water drinking devices, in particular to a henhouse water drinking device for feeding adult chickens, which solves the problems mentioned in the background technology and comprises a water storage tank, a water drinking tray arranged at the bottom of the water storage tank, a plugging cap, a plurality of water diversion bowls arranged on the water drinking tray, and an opening arranged at the top of the water storage tank. The upper portion of the water storage tank is provided with two connecting pipes communicated with the water storage tank, the outer wall of the end of one connecting pipe is provided with a threaded part matched with the plugging cap, the end of the other connecting pipe is rotationally connected with a connector matched with the threaded part, and the multiple water diversion devices are sequentially connected with the connector through the threaded parts to form the whole water diversion device. A plugging cap is arranged on the thread part at the end part of the integral water diversion device, and the connector at the other end is connected with an external water source.