Steam Trap With Self-Cleaning Valve for Maintenance-Free Drainage
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Solution Overview
Problem
Existing steam traps in food filling machines require regular maintenance and cleaning due to contamination issues, leading to complex operation and potential temperature and pressure control problems during condensate drainage.
Innovation Solution
A steam trap with a temperature sensor for automatic malfunction detection, a cylindrical closure element with a conical valve seat for self-cleaning, and a pneumatic drive for controlled condensate drainage, maintaining constant steam pressure and minimizing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a sieve insert is used to filter impurities from steam or condensate, then the filtering function is improved, but the maintenance complexity increases due to regular cleaning requirements
Solution Approach 1:
The invention removes the sieve insert from the steam trap system entirely. Instead of filtering impurities through a sieve that requires cleaning, the design allows condensate to drain directly through the valve mechanism, eliminating the filtering component and its associated maintenance requirements.
Solution Approach 2:
The valve mechanism itself performs the function of impurity separation through its design. The closure element and valve seat configuration allow condensate with impurities to pass through while maintaining proper drainage function, making the system self-cleaning and eliminating separate filtering components.
2Reliability
If regular monitoring and maintenance of steam traps is performed, then the reliability is improved, but the operational complexity increases
Solution Approach 1:
The steam trap design is inherently maintenance-free with no components requiring regular cleaning or monitoring. The valve mechanism automatically handles condensate drainage without user intervention, eliminating operational complexity while maintaining reliability through its simple, robust design.
Solution Approach 2:
The invention removes all maintenance-requiring components from the system. By eliminating the sieve insert and designing a valve mechanism that handles impurities inherently, the system achieves reliability without requiring regular monitoring or maintenance operations.
3Temperature
If the passage cross-section is narrowed to control condensate flow, then the temperature control is improved, but the pressure drop increases
Solution Approach 1:
The valve mechanism dynamically adjusts the passage cross-section based on condensate flow requirements. The closure element moves to open or closed positions, allowing the system to maintain optimal temperature control while minimizing unnecessary pressure drops by opening the passage when condensate is present.
Solution Approach 2:
The system changes the passage cross-section parameter dynamically rather than using a fixed narrow opening. This allows optimal temperature control during condensate drainage while avoiding excessive pressure drops when the valve is open, resolving the contradiction between temperature control and pressure maintenance.
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 enables long-term, maintenance-free operation with automatic detection of malfunctions, maintaining constant temperature and pressure control during condensate drainage, ensuring reliable sterilization and aseptic conditions in food filling machines.
Implementation Method 1
The heating caused by the steam that then flows in causes the bimetal ring to expand, which falls down along the conical seat and releases the valve plate.
Implementation Method 2
the steam trap has a temperature sensor for measuring the temperature in the valve chamber
Implementation Method 3
To ensure process reliability, the temperature control of the steam must be as precise as possible and thus a constant steam pressure must be ensured.
Data Source
Figure 1
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Figure 2b
AI summary
The invention relates to a steam trap having an outlet for draining condensate out of a valve chamber and a closure element, which is seated on a valve seat when closed, for opening and closing the outlet. In order to devise a condensate valve that can be operated largely without maintenance, according to the invention the closure element has a section that projects into the outlet in both the opened and the closed state of the closure element and an annular space between the section and the outlet has a coincident cross-sectional area both in the opened and the closed state of the closure element.