Refillable Frost Protection Burner Pot with Cross-Shaped Wick
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Solution Overview
Problem
Conventional braziers for frost protection in agriculture exhibit unreliable burning behavior, leading to inconsistent energy release and high waste generation, requiring numerous units and resulting in substantial crop losses due to inadequate temperature increase during critical frost periods.
Innovation Solution
A brazier design featuring a refillable candle body with a star or cross-shaped wick and a receiving space within the container, allowing for consistent energy release and reduced waste by retaining molten fuel, even when tilted, and enabling cost-effective reuse by separating the candle body from the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional triangular or square wicks are used in burn pots, then the structure is simple and easy to manufacture, but the burning behavior is unreliable and energy release is inconsistent
Solution Approach 1:
The patent applies asymmetry by using a star-shaped or cross-shaped wick configuration instead of conventional symmetric triangular or square wicks. This asymmetric design creates radially outwardly open sectors that allow molten fuel to flow away when tilted, ensuring consistent burning behavior and energy release throughout the burning period, thereby resolving the reliability issue while maintaining manufacturing simplicity.
2Reliability
If burn pots are placed densely to ensure sufficient temperature increase during frost periods, then crop protection is improved, but the cost and waste generation increase substantially
Solution Approach 1:
The patent implements discarding and recovering by designing a refillable candle body that can be separated from the container. The candle body can be removed, refilled with fresh fuel, and reused in the same container. This eliminates the need to dispose of entire burn pots after fuel consumption, substantially reducing waste generation while maintaining reliable frost protection effectiveness.
3Reliability
If the candle body cross-section matches the container inner cross-section, then the structure is simple, but molten fuel cannot flow away when tilted causing inconsistent energy release
Solution Approach 1:
The patent applies asymmetry by designing the candle body cross-section to differ from the container inner cross-section, creating radially outwardly open sectors. This asymmetric configuration allows molten fuel to flow away when the burn pot is tilted, ensuring consistent energy release throughout the burning period while maintaining structural simplicity.
Solution Approach 2:
The patent introduces a dimensional aspect by creating radial sectors through the star-shaped or cross-shaped wick configuration. This adds a radial dimension to the fuel flow path, allowing molten fuel to move outward in multiple directions when tilted, ensuring consistent burning behavior regardless of orientation.
4Reliability
If hundreds of burn pots are required for adequate frost protection, then crop protection coverage is improved, but the cost of purchase, placement, and disposal increases significantly
Solution Approach 1:
The patent implements discarding and recovering by enabling the candle body to be separated from the container for refilling and reuse. This allows the same container to be used multiple times with different candle bodies, significantly reducing the total number of units needed and improving cost-effectiveness while maintaining adequate frost protection coverage.
Solution Approach 2:
The patent applies universality by designing the container as a reusable component that can accommodate multiple candle bodies. The container serves multiple functions: holding different candle bodies, providing structural support, and enabling repeated use across multiple burning cycles, thereby reducing overall costs and improving productivity.
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 improved brazier design ensures reliable and consistent energy release over extended periods, reducing crop losses and waste, while allowing for cost-effective maintenance by refilling and reusing the candle body, thus providing enhanced frost protection for agricultural crops.
Implementation Method 1
a wick for the fuel
Implementation Method 2
ignited wick
Implementation Method 3
a refillable candle body which can be melted by the ignited wick
Implementation Method 4
a receiving space for molten fuel is formed between the candle body and the container
Data Source
Figure 1a~1c
Figure 2a~2c
AI summary
A combustion pot for protecting agricultural crops against frost, comprising a fuel contained in a container (1) and a wick (3) for the fuel, wherein it is proposed that the container (1) is designed to be refillable by means of a candle body (2) that can be inserted into the container (1), wherein the candle body (2) is provided with a wick (3) extending in a cross shape over the flame-facing surface (2a) of the candle body (2), and by means of a cross-section of the candle body (2) that differs from the clear inner cross-section of the container (1), at least in the area of a sector of the candle body (2) located between two outer wick end edges (3') a receiving space (4) for molten fuel is formed between the candle body (2) and the container (1).