Pump Inlet Nozzle for Liquid Degassing
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Solution Overview
Problem
Existing solutions for degassing liquid media in systems like heating, refrigeration, and air conditioning are either costly or require extensive equipment, making them impractical for smaller units, and existing pumps have complex designs that increase costs.
Innovation Solution
A conventional pump with a nozzle at the inlet and a control device that manages the drive motor to create a partial vacuum within the pump housing, allowing dissolved gases to escape, using sensors or time-controlled operation to optimize degassing without additional equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vacuum tank is used for degassing liquid media, then reliable and easily controlled degassing is achieved, but the equipment outlay is relatively large
Solution Approach 1:
The patent merges the degassing function with the pump housing by providing a degassing chamber integrated into the pump structure. The nozzle is arranged in the pump inlet such that liquid enters the pump housing interior only through the nozzle, combining fluid delivery and gas separation in a single integrated unit, thereby eliminating the need for separate vacuum tanks while maintaining reliable degassing control.
Solution Approach 2:
The pump housing serves multiple functions: it acts as both the fluid conveyance chamber and the degassing chamber. The impeller performs both pumping and gas separation functions, while the nozzle serves both as a fluid inlet and a gas evacuation pathway. This multi-functionality reduces equipment outlay while maintaining reliable degassing operation.
2Productivity
If a special pump design is used for degassing, then effective gas removal is achieved, but the pump becomes extremely complex and expensive
Solution Approach 1:
The patent utilizes changes in pressure parameters to achieve gas removal. By creating a pressure difference between the pump housing interior and exterior through controlled operation, dissolved gases are released from the liquid and evacuated through the nozzle. This parameter-based approach enables effective gas removal using a conventional pump design rather than requiring complex special-purpose equipment.
3Device complexity
If a conventional pump is used for degassing, then cost-effectiveness is improved, but the pump housing must be designed to be slightly larger
Solution Approach 1:
The patent applies local quality by providing a nozzle with specific geometric characteristics in the pump inlet. The nozzle is designed with particular dimensions and shape to optimize both fluid flow and gas separation functions. This localized geometric optimization allows the use of a conventional pump housing design while achieving effective degassing, avoiding the need for entirely new pump designs.
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 approach provides a cost-effective and easily controlled method for degassing liquid media, enabling efficient gas removal from liquids using a standard pump design with minimal additional components, suitable for smaller systems.
Implementation Method 1
a partial vacuum is generated in the pump housing so that the dissolved gases escape from the pump housing to the environment
Implementation Method 2
the nozzle is arranged in the pump inlet in such a way that the not yet degassed liquid can enter an interior of the pump housing only through the nozzle
Data Source
Figure 1
AI summary
An inexpensive and simple-to-control solution for degassing liquid media is to be provided by way of a pump for delivering and degassing a liquid and having a pump housing with a pump inlet and a pump outlet, wherein a pump impeller which is connected to a drive motor is provided within the pump housing and wherein a nozzle is provided in a degassing device. This is achieved with a pump by virtue of the fact that the at least one nozzle (7) is arranged in the pump inlet (4), wherein an entry of liquid into an interior (6) of the pump housing (2) is possible only through the nozzle (7), and the degassing device has a control device which is connected to the drive motor (3).