Agricultural Fogging Machine Steel Wire Straight Pipe Heat Exchange
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Solution Overview
Problem
Existing agricultural fogging machines using coil-shaped pipes face issues with clogging due to increased viscosity and impurities, leading to frequent heater replacements and reduced lifespan, and have limited heat exchange efficiency.
Innovation Solution
The use of a straight pipe structure with a steel wire inserted to generate vortices, along with multi-stage pipe configurations and surface patterns, enhances heat exchange efficiency and reduces clogging, while minimizing chemical use and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If coil-shaped pipes are used to increase heat exchange area, then heat exchange efficiency is improved, but viscosity increases and clogging occurs frequently
Solution Approach 1:
The pipe is divided into multiple sections with different configurations. The first section uses a coil shape for efficient heat exchange, while the second section uses a straight shape for easy cleaning and reduced clogging. This segmentation allows each section to optimize for its specific function.
Solution Approach 2:
The pipe configuration transitions from a static coil shape to a dynamic combination of coil and straight sections. This allows the fluid flow to experience both the heat exchange benefits of the coil and the cleaning benefits of the straight section, adapting to different operational requirements.
2Temperature
If coil-shaped pipes are used to increase heat exchange area, then heat exchange efficiency is improved, but heater replacement frequency increases
Solution Approach 1:
The heater is segmented into two distinct pipe sections: a coil section for heat exchange and a straight section for flow and cleaning. This segmentation prevents the entire heater from being replaced due to clogging in the heat exchange section, extending the overall heater lifespan.
Solution Approach 2:
The problematic coil section is extracted and separated from the cleaning path. By placing the straight section after the coil section, the design extracts the clogging issue from the heat exchange function, allowing independent optimization of each.
3Reliability
If straight pipe is used to reduce clogging, then clogging is reduced, but heat exchange efficiency decreases
Solution Approach 1:
The design merges the advantages of both coil and straight pipe configurations into a single heater assembly. The coil section provides heat exchange efficiency while the straight section provides clogging resistance, combining both benefits in one integrated system.
Solution Approach 2:
The solution moves from a one-dimensional choice (either coil or straight) to a two-dimensional arrangement (coil followed by straight). This dimensional change allows both configurations to coexist and contribute their respective advantages to the overall system performance.
4Temperature
If larger heat exchange area is provided, then heat exchange efficiency is improved, but device size and weight increase
Solution Approach 1:
The fluid flow dynamics are optimized by using the coil section for heat exchange and the straight section for flow maintenance. This dynamic utilization of different pipe sections maximizes heat exchange efficiency without requiring excessive pipe length or larger overall dimensions.
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
This design improves spraying efficiency by reducing contact time with the inner wall, allows for miniaturization, and reduces the need for large-capacity heaters, making it suitable for rural facilities with limited electricity.
Implementation Method 1
a steel wire inserted into a movement path of the liquid chemical in the heater housing to generate a vortex
Implementation Method 2
a heater housing configured to control a temperature of the liquid chemical received from the transfer pump through one or more heat exchanger inside the heater housing
Data Source
AI summary
An agricultural fogging machine having or operatively connected to a supply of a liquid chemical, having a transfer pump which transfers the liquid chemical through a flexible conduit and, by receiving a control signal from a control board, controls the flow of the liquid chemical through the conduit, and having a heater housing which controls the temperature of the liquid chemical received from the transfer pump. The control board is electrically connected to the transfer pump and the heater housing so as to transmit the control signal thereto, and a relay is electrically connected to the control board and changes an output signal according to a current transferred to an electromagnet installed therein. The heater housing has a heat exchanger operatively configured to control the temperature of the liquid chemical exiting the fogging machine through a spray tube, and the control board generates control signals by receiving Wi-Fi signals.