Pneumatic Bladder Wine Pressing and Cap Management
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Solution Overview
Problem
Conventional methods for managing the cap during red wine fermentation are tedious, prone to oxidation, and lack effective solutions for hobby-scale operations and efficient pressing of finished wine, with existing automated devices being complex and expensive.
Innovation Solution
A compact, automated device using a pneumatic bladder system to break up and wet the cap within a flexible plastic bag contained in a cylindrical pail, allowing for automated cap management and wine pressing without manual intervention, utilizing a series of inflatable rubber bladders to compress and disperse the cap, and a perforated tube for extracting wine while retaining solids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual punching methods are used to manage the cap, then the cap can be broken up and wetted, but the process is tedious and requires frequent manual intervention
Solution Approach 1:
The system uses an automated pump to circulate wine from the bottom of the fermenter back over the cap, enabling the system to manage the cap without manual intervention. The pump automatically performs the wetting and breaking up functions that previously required hand punching.
Solution Approach 2:
The manual mechanical action of punching the cap with a tool is replaced by a fluid circulation system using a pump and hose assembly. The pressurized wine flow automatically breaks up and wets the cap, substituting mechanical punching with fluid dynamics.
2Reliability
If the cap is not kept moist during fermentation, then manual intervention is reduced, but deleterious aerobic bacteria can grow on the dry cap
Solution Approach 1:
The system uses hydraulic principles by pumping wine under pressure through a hose assembly that distributes the liquid over the cap. The pressurized fluid flow ensures thorough wetting while the closed-loop hydraulic system maintains reliability without complex mechanical moving parts.
Solution Approach 2:
The circulating wine serves multiple functions simultaneously: it wets the cap to prevent bacterial growth, breaks up the cap structure through pressurized flow, and maintains wine contact with the cap for extraction. This multi-functionality reduces device complexity while achieving multiple goals.
3Productivity
If conventional pressing devices are used for wine pressing, then wine can be extracted from the pomace, but the devices are complex and expensive
Solution Approach 1:
The system extracts wine from the pomace by using a pump to force wine through a screen or filter, separating the liquid wine from the solid pomace. This extraction method eliminates the need for complex mechanical pressing devices while maintaining productivity.
Solution Approach 2:
The system uses a simple, inexpensive pump and screen assembly for pressing instead of expensive, complex mechanical presses. The disposable nature of the screen and simplicity of the pump make this a cost-effective solution that achieves efficient wine extraction without requiring expensive equipment.
4Extent of automation
If automated cap management devices are implemented, then manual labor is reduced, but the devices become complex and expensive
Solution Approach 1:
The automated system uses a simple hydraulic pump and hose assembly to achieve cap management automation. The fluid pressure system provides automated cap wetting and breaking without requiring complex mechanical actuators, motors, or control systems, thus maintaining low device complexity while achieving high automation.
Solution Approach 2:
The system automates cap management through self-circulating wine flow that automatically wets and breaks up the cap without manual intervention. The pump operates on a timer or automatic sensor, creating a self-managing system that achieves high automation with minimal mechanical complexity.
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 eliminates the need for manual 'punching' of the cap, prevents oxidation, and provides a cost-effective, efficient method for both cap management and wine pressing, suitable for small-scale operations, ensuring consistent quality and ease of use.
Implementation Method 1
a pneumatic bladder which is effective at both breaking up and wetting the cap without manual intervention
Implementation Method 2
the rubber bladders that can be inflated by an external source of air... the rubber sleeve is inflated periodically. As it expands it squeezes the fermenting wine, compressing the cap of seeds and skins
Implementation Method 3
the device can be used for pressing out the finished wine by inserting a hollow perforated tube into the fermenting bag and then inflating the rubber bladders in sequence to squeeze out the clear wine while retaining the waste seeds and depleted grape skins
Data Source
AI summary
An apparatus for the production of red wine is provided. This compact device is suitable for home and hobby use. The fermenting wine is contained inside a single-use plastic bag, eliminating cleaning. A reusable rubber bladder is inflated periodically to squeeze the cap and disperse it. At the conclusion of the fermentation, a perforated device is inserted into the fermentation bag and pneumatic bladders are sequentially inflated to press out the wine while retaining the waste skins and seeds.