Exhaust Gas Measuring Point System Double Sealing

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing exhaust systems with boiler connection pieces and measuring point systems face safety issues due to leaks in the plug, leading to dangerous exhaust gas concentrations in installation rooms, as exhaust gas can escape into the environment.

Innovation Solution

A measuring point system with a closure element that extends into both the outer and inner line component measurement openings, providing a double sealing mechanism to prevent exhaust gas from escaping into the environment, and featuring an elongated body with a sealing lip and locking mechanism for secure attachment and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single plug seals the measuring port, then the structure is simple, but exhaust gas can escape into the installation room causing dangerous concentrations

Engineering Contradiction:
Improvesealing reliabilityVSAvoidsealing structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing function is divided into two independent parts: an inner seal element sealing the inner pipe component measuring opening, and an outer seal element sealing the outer pipe component measuring opening. This segmentation ensures that if one seal fails, the other still prevents exhaust gas escape, thereby improving reliability without requiring a complex integrated sealing mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design incorporates a redundant sealing mechanism where the outer seal element provides a backup sealing function. This beforehand cushioning ensures that even if the inner seal element becomes leaky, the exhaust gas cannot escape into the installation room, as the outer seal element prevents the escape path.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Ease of operation

If the measuring port is open for measurement, then measurement access is provided, but exhaust gas can escape into the environment

Engineering Contradiction:
Improvemeasurement accessVSAvoidexhaust gas escape
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The measuring port system is segmented into inner and outer sealing zones. The inner seal element can be opened for measurement access while the outer seal element remains closed, providing a controlled opening that allows measurement operations without compromising the overall sealing integrity of the system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The outer seal element acts as an intermediary barrier between the inner measuring port and the external environment. When the inner seal is opened for measurement, the outer seal element maintains the sealing function, mediating between the need for measurement access and the requirement to prevent exhaust gas escape.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a leak occurs in the plug, then exhaust gas escapes into the installation room, but detecting and restoring tightness is difficult

Engineering Contradiction:
ImprovesafetyVSAvoidtightness restoration
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The sealing system is segmented into independently replaceable inner and outer seal elements. If a leak occurs, the specific faulty seal element can be identified and replaced without affecting the other sealing component, making repair simpler and more straightforward compared to replacing an integrated sealing system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The seal elements are designed as disposable components that can be easily removed and replaced. When a seal element becomes leaky, it is discarded and replaced with a new one, while the remaining functional seal element is recovered and retained in the system, simplifying the repair process.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentEP3396246B1Exhaust gas system with measurement site system
Publication Date: 2021.11.24 CENTTHERM SYSTTECHN GMBH
  • EP3396246B1 patent drawingFigure 1~2
  • EP3396246B1 patent drawingFigure 3~5
  • EP3396246B1 patent drawingFigure 6~12

AI summary

The invention relates to a measuring point system (1) with an outer line component (3) which has at least one outer line component measuring opening (9) and an inner line component (4) which is at least partially surrounded by the outer line component (3) and which has at least one measuring nozzle (6) extending on the outside from the inner line component (4) in the direction of the outer line component measuring opening (9) and establishing a connection to the interior (8) of the inner line component (4) with an inner line component measuring opening (7) formed at its end, wherein at least one closing element (2) is detachably attached to the outer line component (3) and the at least one outer line component measuring opening (8) is designed to close.A gap (24) is formed between the inner pipe component measuring opening (7) and the outer pipe component (3), wherein the at least one closing element (2) has an elongated body (10) which, when the at least one closing element (2) is attached to the outer pipe component (3), extends at least sectionally into the at least one measuring port (6) and which is designed to seal both the at least one outer pipe component measuring opening (9) and the at least one inner pipe component measuring opening (7).