Liquid-Ring Vacuum Pump Inspection Window for Maintenance Access
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Solution Overview
Problem
Conventional liquid-ring vacuum pumps require disassembly for internal inspection and foreign matter removal, making maintenance time-consuming and costly.
Innovation Solution
A see-through device is detachably mounted to the pump's main body, allowing visual inspection and foreign matter removal without disassembly, using a see-through window member and cover members secured with bolts and nuts, enabling inspection and maintenance through a mounting hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main body is disassembled for internal inspection and foreign matter removal, then complete inspection and cleaning can be achieved, but maintenance time and costs increase
Solution Approach 1:
The main body is segmented by providing a separate inspection hole that allows access to the internal cavity without disassembling the entire pump. The inspection hole acts as an independent access point, separating the inspection function from the main assembly/disassembly process.
Solution Approach 2:
The inspection hole serves as an intermediary structure that mediates between the external inspection need and the sealed internal cavity. It provides a pathway for visual inspection and foreign matter removal without requiring full disassembly, thus maintaining inspection completeness while reducing maintenance time.
2Reliability
If the main body is disassembled for foreign matter removal, then all accumulated foreign matter can be removed, but maintenance complexity and costs increase
Solution Approach 1:
The pump structure is segmented to include a dedicated inspection hole that provides access to the internal cavity. This segmentation allows foreign matter removal to be performed independently without requiring disassembly of the entire pump assembly, thereby maintaining cleaning effectiveness while reducing maintenance complexity.
Solution Approach 2:
The inspection hole extracts the inspection and cleaning function from the main assembly process. By providing a separate access point, foreign matter can be removed through this extracted pathway without involving the complex disassembly procedures required by the main body.
3Loss of time
If a see-through device is detachably mounted to allow external inspection, then maintenance time is reduced, but device structure becomes more complex
Solution Approach 1:
The inspection function is segmented into a separate, detachable see-through device that can be independently mounted and removed. This segmentation allows the main pump structure to remain simple while adding inspection capability through a modular component, reducing inspection time without significantly increasing overall structural complexity.
Solution Approach 2:
The see-through device is designed to be detachably mounted, providing dynamic adaptability. The inspection component can be attached when inspection is needed and removed when not needed, allowing the structure to transition between states. This dynamic configuration reduces average structural complexity while enabling rapid inspection.
Data Source
AI summary
Disclosed is a liquid-ring vacuum pump that enables a worker to inspect components provided in a main body from the outside using a see-through device without disassembling the main body and to easily remove foreign matter from the main body merely by demounting the see-through device from the main body. The liquid-ring vacuum pump includes a main body, which accommodates a shaft centrally mounted therein to receive rotational force from a driving motor and has a mounting hole formed therein so as to communicate with the interior of the main body, a rotor rotating together with the shaft inside the main body, a head unit coupled to at least one side of the main body, and a see-through device, which is detachably mounted in the mounting hole and includes a see-through window member to allow the interior of the main body to be inspected with the naked eye.