Flow Control Valve Handle and Display Layout
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Solution Overview
Problem
Existing valve assemblies for regulating flow or differential pressure in heating and cooling systems require difficult access for presetting and reading, especially when installed in cramped spaces like cooling ceilings, necessitating actuator removal for adjustments and readings.
Innovation Solution
A valve assembly design with an axial arrangement of regulators and flow regulators, allowing for adjustable flow cross-sections via a handle that is not covered by the actuator, enabling adjustments and readings without dismounting the actuator, and featuring a space-saving layout with accessible components for easy installation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the actuator is installed to protect against condensation moisture, then reliability is improved, but the presetting and reading become difficult to access
Solution Approach 1:
The valve assembly is divided into functionally independent sections: the actuator mounting section (protected against moisture) and the adjustment/reading section (accessible). The scale and handle are positioned on the housing exterior, separate from the actuator mounting area, allowing operators to access and read flow settings without exposing the actuator to moisture or requiring its removal.
2Volume of moving object
If the components are arranged axially to save space, then volume is reduced, but the presetting becomes difficult to access
Solution Approach 1:
The scale and handle are positioned radially outward on the housing exterior rather than axially within the connection passage. This dimensional relocation allows the adjustment mechanism to be accessible from the side while maintaining the compact axial arrangement of internal flow-regulating components, effectively utilizing the housing's external surface area for control functions.
3Ease of operation
If the actuator must be removed for presetting, then accessibility is improved, but loss of time and additional expenditure increase
Solution Approach 1:
The valve assembly provides self-service capability for presetting and reading flow values through the externally accessible scale and handle. The system is designed to allow operators to perform adjustment and reading operations directly on the installed valve without requiring disassembly or removal of the actuator, thereby eliminating the time loss and additional labor costs associated with actuator removal and reinstallation.
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
Facilitates easy and cost-effective presetting and reading of flow values during system testing and operation, reducing additional expenditure by allowing all necessary steps to be performed with the actuator installed, enhancing accessibility and reducing maintenance complexity.
Implementation Method 1
a regulator which is arranged axially in the connection passage and furnished with a movable partition acted upon by a set point which changes a variable cross section in a differential-pressure-controlled manner
Implementation Method 2
a first flow regulator which is also arranged axially in the connection passage and can be adjusted by an actuating part which projects out of the housing and acts on a second seat
Data Source
AI summary
The invention relates to a valve combination for regulating the rate of flow or the differential pressure in liquid-conveying heating and cooling systems, consisting of a housing (2) provided with a feed pipe (10), a discharge pipe (11) and a connection pipes (6) arranged between them and a regulator (3) which is arranged axially in the connection pipe (6), wherein the regulator (3) keeps the differential pressure constant at a preset value by means of a first flow regulator (4) also arranged axially in the connection pipe (6) and can be adjusted by an actuating part (8) which projects from the housing (2) and acts on a second seat (24), and by means of a presettable second flow regulator (5) which is arranged axially or coaxially thereto, wherein the flow cross section (9) is adjustable, which is characterized in that, when an actuator (29) that acts on the actuating part (8) is installed, the flow cross section (9) is adjustable by means of a handle (7) not covered by the actuator and that, when the actuator (29) is installed, the position of the handle (7) on a display unit (19) which is not covered by the actuator can be read, and the display unit (19) shows the presetting of the flow cross section (9).