Closed water boiler
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Solution Overview
Problem
Existing closed water boilers require welding, which can introduce heavy metals into the tank, posing health risks and limiting the boiling temperature due to atmospheric pressure constraints.
Innovation Solution
A closed water boiler design featuring a leak-tight assembly with a support member, first and second seal members, and a flow control assembly that eliminates the need for welding by using a bolted connection and O-rings to secure the tank bodies, allowing for higher pressure and temperature without metal contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to connect metal tank bodies, then the tank can withstand high pressure and temperature, but heavy metal residual contaminates the water and poses health risks
Solution Approach 1:
The patent introduces a non-metallic intermediate structure (gasket or sealing ring) between the tank body parts to eliminate direct metal-to-water contact. This intermediary component allows the tank to maintain structural integrity and pressure resistance while preventing heavy metal contamination of the water, thus resolving the contradiction between strength and harmful factors.
Solution Approach 2:
The patent extracts the welding process from the tank assembly method and replaces it with mechanical connection methods (bolts, screws, or clips). This extraction eliminates the source of heavy metal contamination (welding residual) while maintaining the structural strength needed to withstand high pressure and temperature conditions.
2Ease of manufacture
If open boiler design is used, then the structure is simple and easy to manufacture, but the boiling temperature cannot exceed 100°C due to atmospheric pressure
Solution Approach 1:
The patent divides the tank into multiple segments (upper and lower tank bodies) that can be easily manufactured and assembled. This segmentation maintains ease of manufacture while allowing the creation of a closed system capable of withstanding higher pressures and temperatures, thus resolving the contradiction between structural simplicity and temperature capability.
Solution Approach 2:
The patent changes the pressure parameter within the tank by creating a closed system. By sealing the tank and allowing pressure to increase above atmospheric levels, the boiling temperature of water can exceed 100°C while maintaining a relatively simple structure through modular design and standard sealing components.
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 provides a secure, leak-tight tank that avoids heavy metal contamination and allows for boiling temperatures above 100°C without welding, enhancing safety and performance.
Implementation Method 1
a leak-tight assembly for sealing a contact portion of the lower body and the upper body
Implementation Method 2
a heating assembly located within the tank for heating the water contained in the tank
Implementation Method 3
converts electric energy or combustion of other fuels to into heat and therefore boil the water
Implementation Method 4
the boiling point of the water contained in the water tank is increased by more than 100°C by increasing the air pressure within the water tank
Data Source
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AI summary
Provided is a water boiler is provided which comprises: a tank for water storage; a flow control assembly for controlling water intake and output; a heating assembly located within the tank for heating the water contained in the tank. The tank comprises a lower body, an upper body, and a leak-tight assembly for sealing a contact portion of the lower body and the upper body. The leak-tight assembly secures the upper body and the lower body, so that the upper body and the lower body can be seal without being welded.