One-way valve assembly used in sludge pump

Abstract

The invention relates to a one-way valve assembly used in a sludge pump, and belongs to the technical field of valves. The one-way valve assembly comprises an assembly shell and a valve element arranged in the assembly shell. The assembly shell is composed of an inlet end, an outlet end, a bottom plate and a valve deck. The included angle of 90 degrees is formed by the inlet end and the outlet end. A valve ring is arranged above the bottom plate. The valve deck is fixed to the portion above the assembly shell. A sliding groove is formed in the bottom face of the valve deck, and a valve rod of the valve element slides and acts on the interior of the sliding groove. A sealing pad at the bottom of the valve element acts on the upper surface of the valve ring in an opening and closing manner. The one-way valve assembly is simple in structure, and the work principle is clear. Compared with a traditional valve element structure, the one-way valve assembly is more convenient to dismount, mount and replace. By means of the design of a boss, the sealing performance of the sealing pad of the valve element and the boss is increased, and the service life is prolonged; and the valve ring and the assembly bottom plate are connected through bolts, non-welding connection is achieved, and fractures generated after stress concentration at the position of a weld line are avoided. According to the one-way valve assembly, only the assembly bottom plate needs to be replaced, the manufacturing cost is saved, and the maintaining work hours are reduced.

Description

technical field [0001] The invention belongs to the technical field of valves, and relates to a one-way valve assembly, in particular to a one-way valve assembly used in a sludge pump. Background technique [0002] The opening and closing parts are opened or closed by the flow and force of the medium to prevent the backflow of the medium. The valve is called a one-way valve. According to the structure, it can be divided into three types: lift check valve, swing check valve and butterfly check valve. These check valves are often used in factories, heating systems, compressed air, water supplies, etc. to prevent backflow or discharge. [0003] In order to realize the synchronous movement of the two cylinders in the sludge pump, the participation of the one-way valve is required. The performance of the one-way valve directly determines the effect of the sludge pump. The existing one-way valve assembly is basically composed of the assembly shell and the valve core. The valve c...

AI Technical Summary

Problems solved by technology

The existing one-way valve assembly is basically composed of the assembly shell and the valve core. The valve core is in direct contact with the inside of the assembly shell. The valve core continuously impacts the inside of the assembly shell. The working strength of the assembly shell is slightly lacking; The material cannot meet the corrosion of sewage with various chemical properties, and the service life is short; in the past, the check valve assembly needs to be replaced after the check valve is damaged, the manufacturing cost is high, and a lot of maintenance man-hours are wasted

Images