Flue Pipe Separation Sensing Apparatus for Boiler Safety
Solution Overview
Problem
Conventional boilers lack a safety device to detect separation of the exhaust flue pipe from the exhaust adapter, leading to potential safety accidents due to the introduction of toxic exhaust gases into the interior.
Innovation Solution
A flue pipe separation sensing apparatus is provided, featuring a sensing member with an elastic force that passes through the exhaust adapter to detect separation by switching between contact states, utilizing a sensing switch and housing to seal gaps and prevent gas leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flue pipe and smoke pipe are connected through interference-fitting or fixing members, then the connection is simple and easy to install, but the flue pipe may separate due to installation conditions, lapse of use period, or component defects
Solution Approach 1:
The sensing member is pre-installed in the exhaust adapter to detect flue pipe separation before safety accidents occur. The sensing member is positioned to make contact with the flue pipe during normal operation, establishing a baseline state before any separation occurs.
Solution Approach 2:
A sensing member acts as an intermediary between the flue pipe and the control system. This sensing member detects the separation state and transmits information to the control unit, enabling indirect monitoring of the connection status without directly interfering with the flue pipe installation.
2Device complexity
If no separate safety device is used for flue pipe separation, then the device complexity is low, but exhaust gas is introduced into the interior causing mortality events
Solution Approach 1:
The sensing member utilizes the elastic force of the flue pipe itself to detect separation. When the flue pipe is properly installed, it maintains contact with the sensing member. When separation occurs, the elastic force changes, automatically triggering the sensing mechanism without requiring external power or complex electronics.
Solution Approach 2:
The patent replaces complex electronic sensing systems with a simpler mechanical sensing member that detects separation through physical contact and elastic force changes. This mechanical approach reduces device complexity while maintaining safety functionality.
3Measurement precision
If the sensing member passes through the exhaust adapter by elastic force, then the detection accuracy is improved, but the device complexity increases due to the sensing switch mechanism
Solution Approach 1:
The sensing member integrates multiple functions into a single component: it detects separation through elastic force changes, mechanically actuates the sensing switch, and provides a direct physical indicator of flue pipe status. This merging reduces the need for separate detection mechanisms.
Solution Approach 2:
The sensing member is designed to be self-actuating, using the elastic force of the flue pipe to automatically trigger the sensing switch when separation occurs. This self-service mechanism eliminates the need for external power sources, motors, or complex electronic actuators.
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
The apparatus effectively prevents safety accidents by accurately detecting flue pipe separation, enhancing boiler reliability and minimizing gas and condensate leakage.
Implementation Method 1
a sensing member located on an outer side of the exhaust flue pipe in a state, in which the exhaust flue pipe is coupled to the exhaust adapter, and that passes through the exhaust adapter by an elastic force and proceed into an interior of the exhaust adapter to sense the separation of the exhaust flue pipe
Implementation Method 2
a press part configured such that at least a portion thereof is inserted into and extracted from the switch case, and the press part may bring a contact point into any one of an off state and an on state by pressing the switch plate
Implementation Method 3
The press part may protrude to an outside of the switch case by a restoring force of an elastic member provided in an interior of the switch case to switch the contact point to the other of the off state and the on state
Data Source
AI summary
Disclosed are a flue pipe separation sensing apparatus and a boiler including the same. The flue pipe separation sensing apparatus of a boiler for sensing separation of an exhaust flue pipe that is fitted with and coupled to an exhaust adapter provided in an exhaust opening of a boiler body includes a sensing member located on an outer side of the exhaust flue pipe in a state, in which the exhaust flue pipe is coupled to the exhaust adapter, and that passes through the exhaust adapter by an elastic force and proceed into an interior of the exhaust adapter to sense the separation of the exhaust flue pipe when the exhaust flue pipe is separated from the exhaust adapter.