1 results about "Screw pump" patented technology

The invention provides a high-pressure dual-screw pump body pressing tool and a high-pressure dual-screw pump static pressure test method. The high-pressure dual-screw pump body pressing tool comprises two flange plates, an isolation part with two ends in abut joint with the two flange plates and a seal assembly mounted on the isolation part in a sleeving manner, the seal assembly is located on the inner sides of two supporting rings and is in abut joint with the two supporting rings, a cavity in a pump body is isolated into a high pressure cavity and a low pressure cavity, and the high-pressure dual-screw pump static pressure test method comprises the steps of dismounting a bearing pedestal, a rotor and a lining; mounting the high-pressure dual-screw pump body pressing tool on the pump body; and carrying out pressure conveying on different cavities in the pump body, and observing whether the pump body is leaked or not. According to the high-pressure dual-screw pump body pressing tooland the high-pressure dual-screw pump static pressure test method, the cavity in the pump body is isolated and subjected to a static pressure test, the total energy consumed by the test can be reduced, and the actual work capacity of a low-pressure area in the pump body can be more accurately judged.