Centrifugal pump capable of preventing water pipe from being damaged

• Main Author: LIN FAMING
• Format: Patent
• Language: Chinese; English
• Published: 10.06.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention discloses a centrifugal pump capable of preventing water pipe damage, and belongs to the field of pumps. A water inlet of a pump body of the centrifugal pump is connected with a water inlet pipe so as to pump water of a water source lower than the horizontal position of the centrifugal pump, and the pipe wall of the water inlet pipe comprises an elastic wall with elastic deformation capacity in the circumferential direction and/or the radial direction of the water inlet pipe; a reducing assembly is arranged in the water inlet pipe, and the reducing assembly bears the impact of water flow in the pipe and deforms in the radial direction of the water inlet pipe after reaching a bearing threshold value so as to drive the elastic wall to deform and expand the pipe diameter of the water inlet pipe; the variable-diameter assembly comprises a water filtering film made of a flexible or elastic non-permeable material, the water filtering film is a film with wrinkles in an initial state, the wrinkles are a