Radiator Upstream Fitting for True Partial-Load Serial Flow

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Solution Overview

Problem

Existing solutions fail to effectively convert standard radiators into radiators with a partial load effect, as they lack the necessary connections to achieve a real serial flow of the heating medium, leading to inefficient heating distribution and potential connection errors.

Innovation Solution

A ballast set comprising a lower connection block with separate fluid connections, a valve, a riser pipe, and an upper connection element, featuring screw-in nipples with molded seals to ensure the heating medium flows exclusively into or out of specific heating plates, allowing for conversion of standard radiators into radiators with a partial load effect, suitable for both one-pipe and two-pipe systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If standard radiators are converted using existing connection sets, then installation is simplified, but real serial flow cannot be achieved leading to ineffective partial load operation

Engineering Contradiction:
Improveinstallation simplicityVSAvoidpartial load function
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connection set is divided into separate functional components: an upper connection element with a first screw-in nipple for flow connection to the front heating plate, and a lower connection block with a second screw-in nipple for return connection to the rear heating plate. This segmentation enables proper serial flow configuration while maintaining ease of installation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Screw-in nipples with molded seals act as intermediary elements that force the heating medium to flow in one direction through the T-piece connections. These intermediaries ensure unidirectional flow from the front heating plate through the riser pipe to the rear heating plate, achieving real serial flow while simplifying the conversion process.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If heating medium flows through multiple heating plates simultaneously, then heat distribution is achieved, but front panel temperature remains too low for effective radiation

Engineering Contradiction:
Improvefront panel temperatureVSAvoidheating efficiency
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The conventional parallel flow arrangement is inverted to a serial flow arrangement where the heating medium flows through the front heating plate first, then through the rear heating plate. This inversion ensures that the front heating plate receives the hottest heating medium first, maximizing its temperature and radiation efficiency before the medium cools in the rear plate.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The connection set utilizes hydraulic principles with screw-in nipples and molded seals to control and direct the flow of heating medium through the radiators. The sealed connections ensure proper pressure differential maintenance, forcing the heating medium through the front plate first and then to the rear plate, achieving optimal temperature distribution.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Adaptability or versatility

If connection elements allow flexible flow paths, then installation adaptability is improved, but connection errors occur that impair partial load function

Engineering Contradiction:
Improveconnection flexibilityVSAvoidflow direction control
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The upper connection element and lower connection block are designed with asymmetric features - the upper element has a first screw-in nipple configured for flow connection to the front heating plate, while the lower element has a second screw-in nipple for return connection to the rear heating plate. This asymmetry ensures correct installation orientation and prevents connection errors that would impair partial load function.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The molded seals integrated into the screw-in nipples provide self-aligning and self-sealing functionality during installation. The seals automatically engage with the T-piece connections, ensuring proper flow direction control without requiring additional sealing components or complex alignment procedures, thus preventing connection errors.

Inventive Principle:
Principle #25Self-service

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

Enables efficient conversion of standard radiators into radiators with a partial load effect, ensuring effective heating distribution and preventing connection errors, thereby enhancing heating performance with minimal effort on construction sites.

Implementation Method 1

the warm heating medium flowing into the front heating plate via the valve set has a lower density than that already in the heating plate located cooled heating medium and by gravity according to the principle of the communicating tube, the temperature level of the rear heating plate will adjust to the temperature level of the front heating plate

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP2023057B1Upstream placement fitting for heater
Publication Date: 2015.02.25 KERMI GMBH
  • EP2023057B1 patent drawingFigure 1
  • EP2023057B1 patent drawingFigure 2
  • EP2023057B1 patent drawingFigure 3

AI summary

The connector system for part load operation of radiators comprises a riser pipe (13) which feeds water exclusively to the front heating panel (2a) of the radiator and a drain (11a) which removes it exclusively from the rear panel (2b).