High-Pressure Hydraulic Liquid Treatment Device
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Solution Overview
Problem
Hydraulic systems used in petroleum recovery face frequent liquid replacement due to pollution from wear particles under high pressure, leading to increased wear in hydraulic cylinders, as existing methods fail to effectively treat and reuse the liquid without disrupting operation.
Innovation Solution
A method and assembly for treating high-pressure liquid in hydraulic installations, utilizing a treatment device with a circulation pump and a tight bell to enclose the pump shaft, allowing continuous operation and preventing liquid discharge, along with a make-up pump for pressure replenishment and monitoring for leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid is frequently replaced due to pollution from wear particles, then the degree of pollution is controlled within acceptable limits, but the maintenance frequency increases and operational continuity is disrupted
Solution Approach 1:
The patent implements continuous operation by integrating a treatment device that cleanses liquid in-circuit without requiring system shutdown. The treatment device processes liquid continuously as it circulates through the hydraulic system, eliminating the need to stop operations for liquid replacement or treatment.
Solution Approach 2:
Instead of discarding polluted liquid through frequent replacement, the system recovers and reuses liquid by removing wear particles through the treatment device. The cleansed liquid is returned to the hydraulic system for continued use, transforming a waste disposal approach into a resource recovery approach.
2Productivity
If a treatment device is integrated into the hydraulic system, then liquid can be treated without stopping operation, but the device complexity increases
Solution Approach 1:
The treatment device is integrated into the existing hydraulic system architecture, with the circulation pump positioned within the liquid flow path between the hydraulic cylinder and accumulator. The treatment device nestles within the existing high-pressure liquid circuit, utilizing the system's own pressure differential to drive liquid through the treatment chambers without requiring external power sources or complex integration.
Solution Approach 2:
The treatment device performs multiple functions within a single integrated unit: it removes wear particles through magnetic and centrifugal separation, filters liquid through porous chambers, and returns cleansed liquid to the system. This multi-functionality reduces the need for multiple separate components and simplifies overall system architecture.
3Reliability
If high pressure is used for liquid circulation, then treatment effectiveness is improved, but the risk of liquid discharge in case of seal failure increases
Solution Approach 1:
The patent incorporates a bell-shaped containment structure around the circulation pump shaft penetration point, positioned before liquid could discharge into the explosive atmosphere. This pre-positioned containment barrier captures any potential leaks at the source, preventing harmful liquid discharge while allowing the system to operate at high pressure for effective treatment.
Solution Approach 2:
The bell-shaped containment structure acts as an intermediary barrier between the high-pressure liquid system and the explosive atmosphere. It intercepts and contains any potential leaks from the pump shaft seal, preventing direct contact between leaked liquid and the hazardous environment while allowing the high-pressure system to continue operating.
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 effective cleansing of high-pressure liquid within hydraulic systems in operation without stopping the system, reducing wear and extending maintenance intervals by ensuring continuous operation and preventing liquid discharge even if the pump shaft seal fails.
Implementation Method 1
liquid is flowing back and forth between a hydraulic cylinder and a gas filled accumulator under high pressure
Implementation Method 2
the circulation pump shaft penetration outside is enclosed by a tight bell. The bell is arranged to seal against discharge of liquid under high pressure if the pump shaft seal should fail
Implementation Method 3
The method typically comprises cleaning of the liquid
Data Source
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AI summary
A method and device for treatment of liquid under high pressure in a hydraulic installation (1) comprising at least a hydraulic cylinder (4) and an accumulator (6) where the method comprises: - connecting a treatment device (2) for liquid to the hydraulic installation (1); - directing liquid under high pressure to the treatment device (2); - circulating liquid by means of a circulation pump (22) via a filter (30) under high pressure from the hydraulic installation (1) and back to the hydraulic installation (1); and - disconnecting the treatment device (2) from the hydraulic installation (1) subsequent to completed treatment.