Transformer Pressure Control via Threshold Valve
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Solution Overview
Problem
The existing liquid-filled transformer configurations with an expansion vessel positioned above the transformer tank lead to increased size, complex assembly, high maintenance risks, and costly transportation due to the need for multiple separate parts.
Innovation Solution
A transformer arrangement with a valve-controlled piping system that allows liquid flow between the transformer tank and expansion tank based on predefined pressure thresholds, enabling the expansion tank to be positioned next to the transformer tank, reducing the number of parts and facilitating assembly and transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the expansion tank is positioned above the transformer tank, then the liquid can be allowed to expand due to temperature change, but the total size of the transformer arrangement is increased
Solution Approach 1:
The invention changes the vertical positioning arrangement to a horizontal positioning arrangement. Instead of placing the expansion tank vertically above the transformer tank, the expansion tank is positioned horizontally adjacent to it, connected via piping. This dimensional change from vertical to horizontal arrangement reduces the overall vertical height and total footprint of the transformer arrangement while still accommodating liquid expansion effectively.
2Stability of the object's composition
If the expansion tank is positioned above the transformer tank, then the liquid can be allowed to expand, but many parts are required for assembly which is problematic in seismically active locations
Solution Approach 1:
The invention merges the expansion tank with the transformer tank assembly into a single integrated unit. The expansion tank is positioned adjacent to and connected to the transformer tank via piping, forming a unified structure that reduces the number of separate components. This merging eliminates the need for multiple separate mounting parts and complex assembly procedures, making the arrangement more suitable for seismically active locations.
3Stability of the object's composition
If the expansion tank is positioned above the transformer tank, then the liquid can be allowed to expand, but maintenance and assembly are risky and expensive due to the expansion tank being positioned high above ground
Solution Approach 1:
The invention repositions the expansion tank from a high vertical location to a low horizontal location adjacent to the transformer tank. This dimensional repositioning brings the expansion tank within easy reach of maintenance personnel on ground level, eliminating the need for dangerous high-altitude work, special safety equipment, and expensive maintenance operations.
4Stability of the object's composition
If the expansion tank is positioned above the transformer tank, then the liquid can be allowed to expand, but it is time consuming to assemble and disassemble the transformer arrangement
Solution Approach 1:
The invention combines the expansion tank and transformer tank into a pre-assembled integrated unit with connected piping. This merging allows the entire arrangement to be installed as a single module, dramatically reducing assembly and disassembly time compared to separately mounting an expansion tank above the transformer tank and connecting multiple components.
5Adaptability or versatility
If the expansion tank and supports are shipped as separate pieces, then the transformer arrangement can be assembled on site, but transport costs are high
Solution Approach 1:
The invention merges the expansion tank, transformer tank, and connecting piping into a single integrated assembly that can be shipped as one complete unit. This eliminates the need to ship multiple separate components and supports, significantly reducing transportation costs while maintaining the capability for on-site installation of the complete assembly.
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 configuration reduces the overall size of the transformer arrangement, simplifies assembly and maintenance, and lowers transportation costs while ensuring controlled pressure management within the transformer tank.
Implementation Method 1
The valve is configured for allowing the liquid to flow from the transformer tank to the expansion tank when the pressure of the liquid in the transformer tank is above a predefined first threshold and for preventing the liquid to flow from the transformer tank to the expansion tank when the pressure of the liquid in the transformer tank is below the predefined first threshold
Data Source
AI summary
A transformer including a transformer tank, an expansion tank, and piping connecting the tanks enabling liquid to flow there between. The piping includes a valve configured for liquid to flow from the transformer to the expansion tank when the pressure is above a predefined first threshold and for preventing the liquid to flow from the transformer to the expansion tank when the pressure is below the first threshold. The valve is also configured for liquid to flow from the expansion to the transformer tank when the pressure is below a predefined second threshold and for preventing the liquid to flow from the expansion to the transformer tank when the pressure is above the predefined second threshold.