Liquid Purification Control Mechanism Design
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Solution Overview
Problem
Existing fluid treatment devices for water softening are cumbersome, complex, and large in size due to their design, which increases operational costs and reduces reliability.
Innovation Solution
A control mechanism with a housing consisting of three parts forming chambers and fluid conducting cavities, interconnected via a cam mechanism with a motor, allowing simultaneous movement of pistons in opposite directions and variable shut-off of liquid conducting cavities, reducing the size and weight of the device while maintaining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a valve-piston system with horizontal shaft and two pistons is used for liquid distribution, then the device can perform softening and regeneration functions, but the device size increases and pressure drop is not eliminated
Solution Approach 1:
The patent transitions from a horizontal shaft arrangement to a vertical shaft arrangement with pistons moving in vertical directions. This dimensional change allows the pistons to control fluid flow paths more efficiently in the vertical space, reducing the horizontal footprint and overall device size while maintaining the liquid distribution functionality.
Solution Approach 2:
The patent integrates multiple functional components within a compact housing structure where the first and second pistons, along with their respective valves, are nested within the same vertical space. The pistons share common fluid pathways and control mechanisms, allowing one piston's movement to influence both fluid distribution functions simultaneously, thereby reducing overall device volume.
2Stress or pressure
If the center distance between input and output channels is increased to eliminate pressure drop, then pressure drop is reduced, but the piston stroke increases and device size increases
Solution Approach 1:
The patent repositions the input and output channels in vertical rather than horizontal alignment, allowing the fluid flow path to be optimized in the vertical dimension. The vertical shaft and piston arrangement enables the fluid to travel shorter horizontal distances while maintaining adequate vertical flow paths, thus reducing pressure drop without increasing overall device footprint.
Solution Approach 2:
The patent employs dynamically adjustable fluid pathways through the movable pistons that can optimize flow resistance in real-time. During different operational phases (softening, regeneration, backwashing), the pistons position themselves to create optimal flow paths, dynamically adjusting the effective center distance between input and output channels to minimize pressure drop regardless of fixed geometric constraints.
3Ease of operation
If a complex valve-piston system with multiple components is used, then liquid distribution control is achieved, but device complexity increases
Solution Approach 1:
The patent combines the functions of multiple valves into a unified piston system. The first and second pistons work together within a single housing, with their movements coordinated to simultaneously control multiple fluid pathways. This merging of functions reduces the number of separate components needed while maintaining comprehensive liquid distribution control capability.
Solution Approach 2:
Each piston in the patent is designed to perform multiple functions: controlling inlet flow, regulating outlet flow, and managing regeneration pathways. The vertical shaft connection between pistons allows one piston's movement to influence both fluid distribution and regeneration functions, creating a universal control system that handles multiple operational modes with fewer components.
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
The solution simplifies the design, increases reliability, and reduces the weight of the device, enhancing its operational efficiency and reducing operational costs.
Implementation Method 1
the pistons being interconnected via a cam mechanism with a motor, wherein the cam mechanism is in the form a cylindrical cam having an outer profile to provide a two-way movement of these two pistons
Implementation Method 2
the calcium and magnesium ions are replaced with sodium ions, with which the ion-exchange resin is enriched
Data Source
AI summary
The claimed invention relates to a filtering device for purifying a liquid, intended for softening and purifying tap water and other liquids for domestic use. A device for purifying a liquid, having an inlet channel and an outlet channel, consists of at least two tanks, one for a softening agent and one for a regenerating solution, and a control mechanism including a housing, which consists of at least three parts which form chambers and liquid-conducting cavities, at least two pistons, which are located in the chambers and which are linked by means of a cam mechanism to an engine, a saline valve, and a discharge valve; the control mechanism is designed such that the pistons can move simultaneously in the chambers in opposite directions, at the same time alternately shutting off the liquid-conducting cavities in the housing; at least two liquid-conducting cavities are formed between the indicated portions of the housing, and at least one cavity is formed between the closest portion of the housing to the upper portion of the tank for the softening agent and the upper portion of the tank for the softening agent. The technical result consists in increasing the reliability and simplifying the design of a device for purifying a liquid, and in decreasing the weight of the device for purifying a liquid.