Milk Sampling System with Solenoid Valves for Real-Time Analysis
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Solution Overview
Problem
Existing milk sampling systems for automated milking machines are not efficient in delivering discrete milk samples directly to analyzing means, often requiring manual handling and remote laboratory analysis, which delays decision-making for efficient milk production and animal welfare.
Innovation Solution
A milk sampling system that includes a compact assembly of a metering pump, induction manifold block, and discharge manifold block, equipped with solenoid valves for controlled milk sample delivery directly to analyzing means, minimizing the need for sensors and sophisticated control arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling and remote laboratory analysis are used, then sample collection is simple, but analysis time is delayed and decision-making is slower
Solution Approach 1:
A sample transfer mechanism acts as an intermediary between the collection vessel and analyzing means, automatically transporting milk samples through a sample path to enable real-time analysis without manual intervention while maintaining simple sample collection
Solution Approach 2:
The analysis function is extracted from remote laboratories and brought to the milking site through automated sample transfer and direct connection to analyzing means, eliminating the time delay of manual sample transport while keeping collection simple
2Productivity
If automated sample delivery to analyzing means is implemented, then real-time analysis is enabled, but device complexity increases
Solution Approach 1:
The system is segmented into distinct functional modules: collection vessel, sample transfer mechanism with pump, manifold block with valves, and analyzing means. This modular segmentation enables automated real-time analysis while managing complexity through standardized, independent components that can be controlled through simple sequential valve operations
Solution Approach 2:
A pump unit is used to automatically transfer milk samples through fluid pathways controlled by solenoid valves, enabling automated sample delivery to multiple analyzing means simultaneously. This hydraulic approach provides simple mechanical automation without requiring complex electronic control systems
3Measurement precision
If discrete milk samples of predetermined quantity are delivered, then real-time analysis accuracy is improved, but control system complexity increases
Solution Approach 1:
The pump unit is calibrated to automatically deliver predetermined quantities of milk samples without requiring external measurement or control adjustments. The system serves itself by using the pump's inherent metering capability to provide precise sample volumes, eliminating the need for complex measurement and control systems
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
Enables the simple and convenient preparation and delivery of discrete milk samples of predetermined quantity, allowing for real-time analysis and quicker decision-making for improved milk production and animal welfare.
Implementation Method 1
The apparatus includes a pump unit (1) having an inlet (8) connected to a milk source and a discharge outlet (11) connected to a discharge system (5)
Implementation Method 2
The induction system (3) includes a manifold block (4) having fluid paths (12, 13, 15, 17, 19) formed therein, which can be selectively opened and closed by respective solenoid actuated membrane valves (21-25)
Data Source
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AI summary
A milk sampling system suitable for use with an automatic milking machine includes a metering pump (2) having an inlet (9) connected to a induction system (3) and an outlet (10) connected to a discharge system (5). The induction system includes a manifold block (4) with passages forming supply paths (12, 13, 15) for connecting the pump inlet to a milk source, a washing fluid source, and a source of pressurised air, and solenoid valves (21, 22, 25) to selectively open and close the supply paths. The discharge systems includes a manifold block (6) with passages forming a plurality discharge paths (27, 29, 31, 33) for successively delivering discrete milk samples for analysis, and solenoid valves (35, 36, 37, 38) to selectively open and close the discharge paths.