Piston Water Hammer Absorber Structure for Easier Sealed Assembly
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Solution Overview
Problem
Existing piston-type water hammer absorbers face difficulties in assembly due to closed ends and small openings, making it hard to install the piston effectively, and they are often made of costly materials that generate incrustants and are hard to process.
Innovation Solution
A piston-type water hammer absorber design featuring a cylinder body with open ends, a plug assembly, and a piston, where the piston is movable within the cylinder body, and the plug assembly forms a sealed cavity to prevent the piston from sliding out, using plastic materials like CPVC for low cost and easy processing, with multiple sealing and locking mechanisms to ensure tightness and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one end of the pipe body is completely closed and the other end has a small opening, then the water hammer absorber can absorb water hammer effectively, but the piston becomes very hard to install
Solution Approach 1:
The pipe body is divided into two openings: a first opening for piston installation and a second opening for sealing. This segmentation allows the piston to be installed through the larger first opening while the second opening is sealed to maintain water hammer absorption functionality, resolving the contradiction between installation ease and functional reliability
2Strength
If traditional materials are used for the pipe body, then the water hammer absorber has sufficient strength, but the cost is high and incrustants are generated
Solution Approach 1:
The invention uses plastic material for the pipe body instead of traditional metal materials. This composite material approach maintains sufficient structural strength for water hammer absorption while eliminating incrustant generation and reducing cost, resolving the contradiction between strength and harmful factor generation
3Strength
If the pipe body is made of metal, then structural strength is sufficient, but processing difficulty and cost increase
Solution Approach 1:
The invention adopts plastic material for the pipe body which is easier and cheaper to process than metal. The plastic material can be easily molded into the required shape with standard manufacturing processes, significantly reducing processing difficulty and cost while maintaining adequate structural strength for the application
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy installation and ensures a tight, reliable seal, preventing piston displacement and incrustant issues, while maintaining structural strength and reducing processing complexity and costs.
Implementation Method 1
a piston gas bag-type water hammer absorber has a closed gas chamber with a high air pressure inside and a piston at a lower end. When shock waves are introduced into the water hammer absorber, surge waves act on the piston, and the piston will move toward the gas chamber. The piston moves up and down under the dual action of gas with a certain pressure and irregular surge waves, forming a dynamic balance
Implementation Method 2
the plug assembly blocks the second opening, and a sealed cavity is formed between the plug assembly and the piston
Data Source
AI summary
A piston-type water hammer absorber comprising: a cylinder body, a plug assembly and a piston; wherein a receiving cavity is formed in the cylinder body, and the piston is movably blocked in the receiving cavity; one end of the cylinder body is provided with a first opening and the other end is provided with a second opening, the first opening and the second opening respectively communicate with two ends of the receiving cavity, and an end of the cylinder body corresponding to the first opening is provided with a limiting part; and the plug assembly blocks the second opening, and a sealed cavity is formed between the plug assembly and the piston.