Combined Valve Housing for Easy Pressure Regulator Removal
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Solution Overview
Problem
The existing valve arrangements face difficulties in maintenance, particularly in removing the pressure regulating valve without damaging it, due to high friction and complex sealing requirements.
Innovation Solution
Incorporating a tool fixing geometry on the pressure regulating valve allows for easy removal using a demounting tool, either through a threaded or bayonet joint connection, which facilitates the extraction of the pressure regulating valve from the housing without causing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pressure regulating valve and flow control valve are mounted through a common opening in the valve housing, then only one sealing means is necessary and machining is simplified, but the pressure regulating valve becomes difficult to remove during maintenance
Solution Approach 1:
A demounting tool is introduced as an intermediary device to facilitate the removal of the pressure regulating valve. The tool engages with the valve body through a tool fixing geometry (threaded or bayonet connection) and provides mechanical leverage to overcome the friction and sealing forces retaining the valve in the housing, enabling easy removal without damaging the valve components
2Ease of operation
If the pressure regulating valve is removed by pulling directly without a demounting tool, then the process should be simple, but the friction between the valve and housing causes damage to the pressure regulating valve
Solution Approach 1:
The demounting tool serves as a mediator between the operator and the pressure regulating valve. It distributes the extraction forces through proper engagement points and mechanical advantage, preventing direct pulling forces from damaging the valve body or its sealing surfaces while still enabling straightforward removal
Solution Approach 2:
The tool fixing geometry (threaded connection or bayonet joint) is pre-designed into the pressure regulating valve, allowing the demounting tool to be quickly attached before the actual removal operation. This preliminary preparation ensures that the valve is properly engaged with the tool to prevent damage during the extraction process
Data Source
Figure 1~2
Figure 3
AI summary
A valve arrangement (1) is provided comprising: a valve housing (2) having an inlet (3) and an outlet (4), a flow control valve (5) arranged between the inlet (3) and the outlet (4), a pressure regulating valve (15) arranged between the inlet (3) and the flow control valve (5), wherein the pressure regulating valve (15) and the flow control valve (5) are mounted in the valve housing (2) through a common mounting opening. The maintenance of the valve arrangement should be facilitated. To this end the pressure regulating valve (15) is mounted detachably in the housing.