Cleaning Device for Barrel Pumps With Rotating Nozzle Assembly
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Solution Overview
Problem
Existing cleaning devices for barrel and container pumps only partially clean the outside of the pump lance, as it is exposed to cleaning nozzles for a short time, limiting the effectiveness of external cleaning, while internal cleaning is more thorough.
Innovation Solution
The integration of cleaning nozzles within the immersion tank, connected to a nozzle support structure that radiates around the pump lance, combined with an auxiliary pump for enhanced pressure and a bypass circuit, allows for simultaneous internal and external cleaning, with the cleaning agent being circulated and filtered to maintain effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pump lance is cleaned by immersion in cleaning agent with brief mechanical cleaning during insertion, then the cleaning device is simple to operate, but the external cleaning effectiveness is insufficient
Solution Approach 1:
The pump lance itself serves as the cleaning tool by pumping cleaning agent through its own interior and exterior, enabling self-cleaning without requiring separate cleaning equipment or manual intervention. The pump lance circulates cleaning agent through its internal passages and delivers it to external nozzles for surface cleaning, making the object being cleaned perform the cleaning function.
Solution Approach 2:
The pump lance performs multiple functions: it pumps material during normal operation, circulates cleaning agent through its interior passages during cleaning, and delivers cleaning agent to external nozzles for external surface cleaning. This multi-functionality eliminates the need for separate internal and external cleaning systems.
2Device complexity
If cleaning nozzles are positioned to spray during insertion only, then the device structure is simple, but the cleaning coverage is insufficient
Solution Approach 1:
The cleaning system transitions from a static nozzle arrangement to a dynamic one where the pump lance itself moves and rotates during operation. This motion dynamically exposes different portions of the pump lance surface to the cleaning agent spray, increasing cleaning coverage without requiring multiple fixed nozzles or complex positioning mechanisms.
3Manufacturing precision
If the pump lance is exposed to cleaning nozzles for extended periods, then external cleaning effectiveness improves, but the cleaning process time increases
Solution Approach 1:
The cleaning process utilizes the periodic motion of the pump lance during its normal pumping operation. As the pump lance inserts and withdraws from the container, different surfaces are periodically exposed to the cleaning agent spray, achieving thorough cleaning through repeated cycles rather than requiring continuous static exposure.
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 intensive external cleaning of the pump lance while maintaining effective internal cleaning, with the circulation and filtration of the cleaning agent ensuring thoroughness and preventing nozzle clogging, and the use of an auxiliary pump supports pressure for mechanical cleaning.
Implementation Method 1
With the appropriate pressure, a mechanical cleaning effect is achieved in addition to the action of the cleaning agent.
Data Source
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AI summary
A device for cleaning drum and container pumps is already known in which the pump to be cleaned is placed in an immersion tank and circulates cleaning agents in a closed cleaning circuit. It is also known to arrange cleaning nozzles in the area of an insertion sleeve, which effect external cleaning of the pump lance inserted through them. To enable more intensive external cleaning, a modification of such a device is proposed in which, for example, a rotating nozzle assembly is provided in the immersion tank, which enables intensive external cleaning of the pump lance, while the pump lance simultaneously cleans itself internally by being pumped through with the cleaning agent.