High Pressure Lubricant Pump Modular Design for Steelworks
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Solution Overview
Problem
High pressure lubricant pumps in steelworks face issues with mechanical component breakage due to high stresses, complex dismantling and reassembly processes, and inefficient lubricant heating methods that are costly and unevenly effective, leading to prolonged maintenance times and risk of pump damage.
Innovation Solution
A high pressure lubricant pump design featuring pre-assembled pumping units with removable components and integrated heating elements within the pump body, allowing for rapid maintenance and efficient lubricant heating independent of thermal conductivity, using a combination of cast aluminum and steel elements with embedded heater coupling members for concentrated heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pump structure with multiple components is used, then pumping function is achieved, but maintenance time increases significantly
Solution Approach 1:
The pump is divided into modular components: a reusable pump body and replaceable pumping units. Each pumping unit contains the piston, cylinder, spring, and gasket as an integrated assembly that can be quickly swapped out without dismantling the entire pump, reducing maintenance time from 3-4 hours to minutes.
Solution Approach 2:
The pumping units are pre-assembled with all necessary components (piston, cylinder, spring, gasket) before installation. This preliminary assembly allows for rapid replacement during maintenance without requiring on-site assembly operations, significantly reducing downtime.
2Temperature
If heating bands are applied to the outside of the vessel, then heating capability is provided, but heating uniformity deteriorates
Solution Approach 1:
The heating elements are integrated directly into the pump body structure, merging the heating function with the pump housing. This internal integration ensures uniform heat distribution throughout the lubricant by eliminating the distance and thermal resistance between the heating source and the lubricant, solving the non-uniform heating problem of external bands.
3Temperature
If external heating bands are used, then heating function is achieved, but system cost increases
Solution Approach 1:
The heating elements are built into the pump body as an integrated system rather than being separate external components. This merging eliminates the need for additional heating bands, mounting structures, and control systems, thereby reducing overall system complexity and cost while maintaining effective heating 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
Enables rapid maintenance, reduces energy consumption by focusing heat transfer on the necessary areas, and ensures consistent lubricant heating across the pump, independent of lubricant type, thereby minimizing downtime and component wear.
Implementation Method 1
integrated heating elements within the pump body... for concentrated heat transfer
Implementation Method 2
applying bands carrying heating electrical resistance elements to the outside of the vessels
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The high pressure lubricant pump (1) for steelworks comprises a body (2) provided with at least one cylinder (5) provided with a lubricant intake port (7) and a lubricant delivery port (8). Within the cylinder (5) a piston (10) is movable to pressurize the lubricant. The cylinder (5) and the piston (10) define a preassembled pumping unit (14) removably fixed into a seat (16) of the body (2).