Drain Discharge Pipe Balance Integration for Heat Exchanger Pressure
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Solution Overview
Problem
Conventional drain treatment systems face challenges in achieving pressure balance between facility apparatuses and drain treatment apparatuses due to the lack of connecting parts for balance pipes, making it difficult to connect them effectively.
Innovation Solution
A drain treatment system that includes a balance pipe connecting the drain treatment apparatus with the drain discharge pipe and a communicating tube with a member at the facility apparatus end that allows gas flow while preventing drain flow, using a check valve, hydrophobic porous membrane, or inverted U-shaped cover to manage pressure and facilitate smooth drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a balance pipe is connected to a heat exchanger to achieve pressure balance, then pressure balance between the heat exchanger and drain tank is achieved, but the system becomes complex and difficult to install because many facility apparatuses do not have connecting parts for balance pipes
Solution Approach 1:
The balance pipe function is merged with the drain discharge pipe by providing a balance pipe connection portion directly on the drain discharge pipe. This integration eliminates the need for separate balance pipe connections to the facility apparatus, simplifying the system structure while maintaining pressure balance functionality.
Solution Approach 2:
The drain discharge pipe is given multiple functions: it serves both as the primary drain discharge pathway and as the connection point for the balance pipe through the balance pipe connection portion. This multi-functionality reduces the number of separate components needed and simplifies installation.
2Reliability
If a communicating tube is provided to allow pressure balance, then pressure balance is achieved, but drain may flow back into the communicating tube from the facility apparatus
Solution Approach 1:
A one-way valve is introduced as an intermediary component in the communicating tube to control fluid flow direction. The valve allows gas to pass through for pressure balance while blocking drain from flowing back into the communicating tube, thus eliminating the harmful backflow effect.
Solution Approach 2:
The communicating tube is designed with different properties at different locations: the portion within the facility apparatus has a one-way valve to prevent drain backflow, while the external portion remains open for gas communication. This localized differentiation of properties solves the backflow problem while maintaining pressure balance functionality.
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 system achieves a simple and effective pressure balance between the facility apparatus and drain treatment apparatus, ensuring reliable discharge of gas and drain into the drain tank, even when the drain level is above or below the communicating tube opening, thereby ensuring efficient drainage.
Implementation Method 1
there is provided, at an end of the communicating tube on the side of the facility apparatus, a member which allows a flow of gas from the communicating tube to the facility apparatus and prevents a flow of drain to the communicating tube from the facility apparatus
Implementation Method 2
a member which allows a flow of gas from the communicating tube to the facility apparatus and prevents a flow of drain to the communicating tube from the facility apparatus can be the one using a check valve, a hydrophobic porous membrane, or an inverted U-shaped cover
Implementation Method 3
a member which allows a flow of gas from the communicating tube to the facility apparatus and prevents a flow of drain to the communicating tube from the facility apparatus can be the one using a check valve, a hydrophobic porous membrane, or an inverted U-shaped cover
Implementation Method 4
A balance of pressure is achieved between the heat exchanger and the drain tank by the balance pipe
Data Source
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AI summary
A drain treatment system capable of achieving balance of pressure between a facility apparatus and a drain treatment apparatus with a simple structure is provided. A bottom part of a heat exchanger 2 is connected with a top part of a drain tank 3 by a drain discharge pipe 4. The drain discharge pipe 4 has a balance pipe-connecting tube 5. The balance pipe-connecting tube 5 comprises: a balance pipe-connecting part 6; a communicating tube-connecting part 7; and a communicating passage 8 which connects both the parts therein. The top part of the drain tank 3 is connected with the balance pipe-connecting part 6 by a balance pipe 9. Further, the communicating tube-connecting part 7 is connected with a lower part of the heat exchanger 2 by a communicating tube 10 which passes through the drain discharge pipe 4. If a drain level of the heat exchanger 2 is below an open end of the communicating tube 8 on the side of the heat exchanger 2, the balance of pressure is achieved between the heat exchanger 2 and the drain tank 3 by the balance pipe 9, the communicating passage 8, and the communicating tube 10, allowing the drain from the heat exchanger 2 to be smoothly discharged into the drain tank 3 through the drain discharge pipe 4.