Blind-Bore Plunger Cooling for High-Pressure Pump Overheating
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Solution Overview
Problem
High-pressure reciprocating pumps experience overheating due to high temperatures caused by component wear and expansion, leading to premature failure of parts such as plunger packing, which results in increased maintenance costs and downtime.
Innovation Solution
A liquid cooled plunger system with a blind bore in the plunger and a heat exchanger made of higher thermal conductivity material to circulate cooling fluid within the bore, reducing plunger temperature and extending component life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plunger is used in high-pressure reciprocating pumps, then pumping function is achieved, but overheating occurs due to component wear and expansion
Solution Approach 1:
A heat exchanger is introduced as an intermediary component between the plunger and the cooling fluid. The heat exchanger receives cooling fluid through a blind bore in the plunger, absorbs heat from the plunger, and dissipates it to the surrounding environment, thereby mediating the thermal management of the plunger without interfering with its pumping function
Solution Approach 2:
The invention utilizes hydraulic cooling by circulating cooling fluid through the blind bore in the plunger. The fluid flow carries away heat generated during high-pressure operation, effectively using hydraulic principles to manage thermal conditions in the pumping system
2Productivity
If high pressure operation is maintained, then pumping efficiency is improved, but component wear increases leading to premature failure
Solution Approach 1:
The invention changes the thermal parameter of the plunger by introducing active cooling through the blind bore heat exchanger system. By maintaining lower operating temperatures through continuous cooling fluid circulation, the system enables sustained high-pressure operation without the accelerated component wear that would otherwise result from thermal expansion and degradation
3Temperature
If cooling fluid is circulated through the blind bore, then plunger temperature is reduced, but device complexity increases
Solution Approach 1:
The cooling system is segmented into distinct functional components: the blind bore integrated into the plunger, the heat exchanger positioned within the bore, and the cooling fluid circulation system. This segmentation allows each component to perform its specific function efficiently while maintaining overall system simplicity through modular integration
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 effectively cools the plunger, reducing friction and extending the lifespan of plunger packing and other components, thereby reducing maintenance and operational costs.
Implementation Method 1
a heat exchanger made of a material having a higher thermal conductivity than the plunger
Implementation Method 2
circulate cooling fluid within the bore
Data Source
AI summary
A system for cooling plungers which operate in high pressure pumps. The system uses a plunger having a blind bore formed therein. The blind bore may receive a number of different objects, some of which are fixed to the plunger. A heat exchanger may be installed within the blind bore. The heat exchanger may have internal passages or openings which allow for the circulation of fluid within the blind bore, thus cooling the plunger. The heat exchanger may be formed of a material having a higher thermal conductivity than the material used to form the plunger. This allows the heat exchanger to cool the plunger more effectively than if the plunger were solid or filled with an empty air space. The heat exchanger may be sealed within the bore of the plunger, or exposed.