Pipeline Pig Introduction Venting for Thick-Matter Conveying Lines
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Solution Overview
Problem
Existing systems lack an efficient method for introducing media separation devices, such as pipeline pigs, into high-density material conveying lines of construction machines, which can lead to inefficiencies and safety concerns due to potential gas bubble explosions.
Innovation Solution
The introduction device comprises a housing with a controllable pressurization system and a piston that adjusts through various positions to guide and propel the media separation device into the conveying line, ensuring a gas bubble-free liquid column to prevent explosions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a media separation device is introduced into a high-density material conveying line using conventional methods, then the conveying line can be cleaned, but gas bubbles may remain in the propellant fluid column causing explosion hazards
Solution Approach 1:
The venting device is activated before the propellant fluid is introduced into the housing interior. This preliminary venting action removes air and gas bubbles from the housing interior before pressurization, preventing the formation of explosive gas pockets in the propellant fluid column and eliminating the explosion hazard while maintaining cleaning effectiveness
Solution Approach 2:
The venting device creates a counter-action by actively removing gas bubbles from the housing interior before the propellant fluid is introduced. This preliminary anti-action prevents the harmful effect of gas bubble accumulation that would otherwise occur during normal operation, ensuring safe propulsion of the media separation device
2Ease of operation
If the piston is positioned to receive the media separation device, then the device can be loaded, but the housing interior cannot be pressurized for propulsion
Solution Approach 1:
The piston is designed to dynamically change position between a receiving position for loading the media separation device and a propulsion position for sealing the housing interior. This dynamic repositioning allows the system to alternate between loading and pressurization modes, enabling both ease of operation and sufficient propulsion power without compromising either function
Solution Approach 2:
The operation is segmented into distinct phases: loading phase where the piston is retracted to receive the media separation device, venting phase where gas is removed, and propulsion phase where the piston advances to seal and pressurize the housing interior. This segmentation allows each function to be optimized independently while maintaining overall system effectiveness
3Productivity
If the housing interior is pressurized with propellant fluid, then the media separation device can be propelled efficiently, but gas bubbles may cause sudden pressure release and explosion
Solution Approach 1:
The venting device is activated before propellant fluid introduction to remove all air and gas bubbles from the housing interior. This preliminary action ensures that the subsequent pressurization with propellant fluid occurs in a gas-free environment, preventing sudden pressure releases and explosions while maintaining high propulsion efficiency
Solution Approach 2:
The venting device, which removes gas bubbles, transforms the potential harmful effect of gas pocket formation into a benefit by ensuring complete gas removal. This converts what would be a dangerous situation (gas bubbles under pressure) into a safe condition (gas-free propellant column), enabling efficient propulsion without explosion risk
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
This solution enables safe and efficient introduction of media separation devices into high-density material conveying lines, reducing the risk of explosions and improving operational efficiency by ensuring effective propulsion and cleaning of the conveying line.
Implementation Method 1
a controllable pressurization device (5) designed to at least partially pressurize the housing interior (3) with a propellant fluid (T) to propel a media separation device (M), which is to be introduced into the thick matter conveying line (51) in the direction of introduction (E)
Implementation Method 2
a venting device (6) designed to vent at least one interior region (7) of the housing interior (3) when at least partially exposed to propellant fluid (T). The venting device (6) is designed, in particular, to allow air to flow through it
Implementation Method 3
a piston (8), wherein the piston (8) is adjustable relative to the housing (2) in the introduction direction (E) in order to adjust a media separation device (M) located upstream of the piston (8) in the introduction direction (E)
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to an introduction device (1) for introducing a media separation device (M) into a thick matter conveying line (51) of a construction machine (50) for conveying thick matter (D), wherein the introduction device (1) comprises: a housing (2) which has a housing interior (3), an outlet opening (4) opening the housing interior (3), a controllable pressurising device (5) for at least partially pressurising the housing interior (3) with a driving fluid (T), a venting device (6), and a piston (6) which is adjustable relative to the housing (2) from an end receiving position (PA) via an intermediate venting position (PZ) into an end introducing position (PE) in order to introduce the media separation device (M) into the thick matter conveying line (51).