Separator Disc Stack Compression for Easier Bowl Hood Mounting
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Solution Overview
Problem
The existing method for mounting the bowl hood in a centrifugal separator is labor-intensive due to the friction between the bowl hood and the top disc, as well as the increasing compression forces that counteract the mounting process.
Innovation Solution
A method involving a compression tool with a screw and nut system is used to facilitate the mounting of the bowl hood by pre-compressing the disc stack, allowing easier alignment and secure fastening of the bowl hood.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the bowl hood is screwed onto the bowl body to compress the disc stack, then the separation efficiency is improved by preventing leakage between discs, but the mounting effort increases due to friction between the bowl hood and top disc
Solution Approach 1:
The patent applies preliminary action by pre-compressing the disc stack using a compression tool with a screw mechanism before mounting the bowl hood. This pre-compression reduces the gap between discs and eliminates the need for excessive force during bowl hood installation, thereby maintaining separation efficiency while reducing mounting effort
Solution Approach 2:
The patent introduces a compression tool as an intermediary device between the bowl hood and the disc stack. This tool includes a support with a screw that applies controlled compression force to the disc stack, acting as a mediator that achieves the required compression without directly transmitting excessive force through the bowl hood during installation
2Reliability
If the disc stack is compressed to prevent leakage, then separation efficiency is improved, but the compression forces increase making mounting more difficult
Solution Approach 1:
The compression tool applies preliminary compression to the disc stack before the bowl hood is fully installed. The screw mechanism gradually compresses the discs to the required degree, preventing leakage while distributing the compression force in a controlled manner that does not create excessive mounting resistance
Solution Approach 2:
The patent changes the compression parameter by using a screw mechanism that allows precise control and gradual application of compression force. This enables achieving the necessary compression level for leakage prevention while maintaining manageable force levels during the mounting process
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 method reduces the effort required for mounting the bowl hood by pre-compressing the disc stack, ensuring proper alignment and secure fastening, thereby improving the efficiency and ease of the mounting process.
Implementation Method 1
tightening said nut with a pre-determined torque, in relation to said first threaded end of said screw in such a manner that said distributor is lifted to an upper position
Implementation Method 2
the friction between the under-side of the bowl hood and the top disc counteract the mounting of the bowl hood as does the increasing compression forces
Implementation Method 3
In a centrifugal separator for separation of a liquid mixture into at least one heavy phase and one light phase having a relative lower density than said heavy phase
Data Source
AI summary
A method for mounting a stack of separating discs in a centrifugal separator bowl comprising a bowl body and a bowl hood includes mounting and securing the stack of separating discs on a distributor; placing and rotatably fixing the distributor in the bowl body; mounting the bowl hood on the bowl body; arranging a compression tool for compressing the stack of separating discs; fastening the screw with a second threaded end in a first (threading) of the distributor; tightening said nut, in relation to said first threaded end of said screw in such a manner that said distributor is lifted to an upper position; fixing the distributor in its upper position; and dismounting the compression tool. A compression tool for performing the method includes a support, a screw and a nut in accordance to above. A centrifugal separator kit includes a centrifugal separator and the compression tool.