Reciprocating Pump Valve Cartridge Assembly With Rib-Slit Orientation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reciprocating pumps with two-staged ball valves can be assembled erroneously, leading to reversed flow paths and potential safety hazards due to the complexity of determining the correct assembly direction and sequence.
Innovation Solution
The design incorporates specific dimensional relationships between connection ports, adapters, and valve cartridges, including ribs and slits, to uniquely determine the assembly direction and sequence, preventing erroneous assembly by ensuring proper alignment and fitting of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two-staged ball valves are used in reciprocating pump, then the valve mechanism can perform check function and secure flow path, but the assembly direction and sequence become complicated and erroneous assembly may occur
Solution Approach 1:
The invention applies asymmetry by providing ribs on the inner sides of connection ports and corresponding slits on the outer periphery of valve cartridges. These asymmetric features create a unique assembly direction where the ribs fit into the slits, preventing erroneous assembly. The suction valve and discharge valve have different rib-slit configurations that correspond to their specific assembly locations, ensuring correct installation orientation.
2Ease of operation
If valves can be assembled from opposite side relative to pump head, then assembly flexibility increases, but flow paths become reversed and defective fluid transfer occurs
Solution Approach 1:
The asymmetric rib-slit configuration ensures that valves can only be assembled in the correct orientation. The ribs on the connection ports fit into corresponding slits on the valve cartridges, creating a mechanical constraint that prevents assembly from the wrong side. This eliminates the possibility of reversed flow paths while maintaining assembly simplicity.
3Reliability
If different valve structures are used for suction and discharge valves to ensure correct assembly, then assembly direction is determined, but part variety increases and costs increase
Solution Approach 1:
The invention applies local quality by providing different rib-slit configurations at specific locations on the same valve cartridge structure. The suction valve cartridge has ribs or slits configured for its connection port, while the discharge valve cartridge has different rib-slit configurations suited for its connection port. This allows correct assembly direction determination without requiring fundamentally different valve structures.
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
This solution ensures that valves are assembled correctly, preventing defective fluid transfer and enhancing safety while reducing the risk of errors and part costs by allowing common valve cartridges to be used for both suction and discharge valves.
Implementation Method 1
a ball valve having a valve seat and a valve ball, wherein the valve ball is disposed above the valve seat and closes the valve seat by its own weight
Data Source
AI summary
At least one rib 9c, 21c extending in a direction of connecting with a valve cartridge 30 is provided to the inner sides of each of a second connection port 9 of a pump head 5 and a third connection port 21 of a first connecting adapter 20A, and at least one slit 41 which extends in the connecting direction and into which the ribs 9c, 21c are loosely inserted is provided to the lower outer periphery of the valve cartridge 30. The relationship (id2b, id3b)>od1t>(id1, id4)>od2>(id2t, id3t)>od1b is satisfied, where the inside diameter of a first connection port 8 is id1, the inside diameter of the second connection port 9 is id2b, the inscribed diameter at the top of the rib 9c of the second connection port 9 is id2t, the inside diameter of the third connection port 21 is id3b, the inscribed diameter at the top of the rib 21c of the third connection port 21 is id3t, the inside diameter of a fourth connection port 23 is id4, the outside diameter of the upper outer periphery of the valve cartridge 30 is od1t, the outside diameter of the bottom of the slit 41 at the lower outer periphery is od1b , and the outside diameter of the upper outer periphery of the valve cartridge 30 is od2.