Stamped Welded Pipeline Pump Overflow Part
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Solution Overview
Problem
Traditional pipeline pumps have complex structures, high material consumption, poor hydraulic performance, and environmental pollution due to the casting process, especially for overflow parts with narrow and long channels, leading to inefficient operation and manufacturing challenges.
Innovation Solution
A pipeline pump with an overflow part entirely shaped by stamping and welding, featuring a centrifugal impeller with a semi-twisting spiral vane and a disk-shaped flow guide part, enhancing hydraulic efficiency and reducing material usage through a compact, integrated design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the overflow part is shaped by casting, then the manufacturing process is established, but the structure becomes complicated, material consumption increases, and environmental pollution occurs
Solution Approach 1:
The pump body is divided into inner cylinder and outer cylinder components, allowing separate stamping and welding assembly. This segmentation simplifies the manufacturing of each component while reducing overall structural complexity and material consumption compared to traditional casting methods.
Solution Approach 2:
The invention transitions from three-dimensional casting to a combination of two-dimensional stamping and welding assembly. The overflow channels are formed through stamping of flat sheets that are then welded together, changing the manufacturing dimensionality and reducing material waste.
2Ease of manufacture
If the overflow part is shaped by casting, then the manufacturing is possible, but hydraulic performance deteriorates and efficiency decreases under part load operation
Solution Approach 1:
The stamping process allows for precise local shaping of the overflow channels with optimized geometries. The inner and outer cylinders can be stamped with specific channel profiles that improve hydraulic performance and maintain high efficiency under part load conditions, unlike generic casting shapes.
3Power
If narrow and long overflow channels are designed, then the pumping head increases, but casting becomes difficult and manufacturing complexity increases
Solution Approach 1:
The narrow and long overflow channels are created by stamping thin-walled inner and outer cylinders with precise channel profiles, then welding them together. This segmentation allows for easier manufacturing of complex channel geometries compared to traditional casting, while maintaining the high pumping head performance.
4Ease of manufacture
If traditional casting is used, then the pump structure is established, but weight increases and material consumption rises
Solution Approach 1:
The invention changes the manufacturing parameters from heavy casting to lightweight stamping and welding. The thin-walled inner and outer cylinders created through stamping significantly reduce the weight and material consumption of the pump body while maintaining structural integrity and hydraulic performance.
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 results in a more reliable, efficient, and environmentally friendly pump with reduced weight, improved hydraulic performance, and simplified manufacturing, while maintaining adequate strength and precision.
Implementation Method 1
a pipeline pump with an overflow part entirely shaped by stamping and welding
Implementation Method 2
a pipeline pump with an overflow part entirely shaped by stamping and welding
Implementation Method 3
an impeller installed inside the pump body, the impeller being installed on a pump shaft and driven for rotation by the motor, the impeller is a centrifugal impeller with axial suction and radial discharge
Data Source
AI summary
A pipeline pump shaped by stamping and welding, comprises a pump body, a pedestal, a pump rear cover and a motor installed at the opening of the pump body, and an impeller arranged inside the pump body. The pump body is comprised of an inner cylinder and an outer cylinder. A flow guide part, the impeller, an exhaust part, and the pump rear cover mounted on the opening of the outer cylinder are coaxially arranged upwards in turn from the opening of the inner cylinder. The impeller is axial suction and radial discharge. The disk bottom of the flow guide part is sealed with the opening of the inner cylinder. The impeller is coaxially arranged inside the flow guide part, and a flow guide vanes corresponding to a radial exhaust port of the impeller are provided on a circumferential wall of the flow guide part.