Chimney Cleaning Frame With Dust-Retaining Passages and Extraction
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Solution Overview
Problem
Existing chimney cleaning methods result in dust pollution due to dust escaping from the lower opening during the cleaning process, which is not only harmful but also poses risks for the cleaner and is not feasible for all building types.
Innovation Solution
A device with a frame and elastic elements forming dust-retaining passages and extraction openings, which seals the chimney and uses suction to extract dust, minimizing its escape during cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cleaning door at the lower opening is opened during cleaning, then the cleaning process can be carried out from below, but dust escapes and enters the building
Solution Approach 1:
A frame with extraction openings is introduced as an intermediary device between the cleaning opening and the interior space. This frame allows the shaft to pass through while enabling dust extraction, mediating between the need for access and the need to prevent dust escape
Solution Approach 2:
A suction device is connected to the frame to create negative pressure in the interior space. This pneumatic system actively extracts dust particles that may penetrate the sealing surfaces, preventing them from escaping into the building
2Object-affected harmful factors
If traditional cleaning methods are used from the top, then dust can be contained, but external roof access is required which is complex and unsafe
Solution Approach 1:
The cleaning direction is inverted from traditional top-down cleaning to bottom-up cleaning. The cleaning opening is relocated to the lower part of the chimney, allowing access from ground level while the frame and suction system prevent dust from escaping upward into the building
3Object-affected harmful factors
If the cleaning opening is sealed to prevent dust escape, then dust pollution is reduced, but the cleaning tool cannot be inserted or removed
Solution Approach 1:
The sealing structure is segmented into multiple dust-retaining passages with elastic elements instead of a single solid seal. This segmentation allows the cleaning tool shaft to pass through the passages while the elastic elements maintain sealing contact, enabling both tool access and dust containment
Solution Approach 2:
Elastic elements are used to form flexible sealing surfaces within the dust-retaining passages. These flexible components can deform to accommodate the passing of the cleaning tool shaft while maintaining the seal to prevent dust escape
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
Significantly reduces dust emissions during chimney cleaning by preventing dust from escaping and allowing for safe, efficient cleaning from below without external access.
Implementation Method 1
connected to a suction device, while the interior space is extracted through the extraction openings
Implementation Method 2
two spaced-apart dust-retaining passages for the shaft are formed on the frame with elastic elements
Data Source
Figure 1
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AI summary
The invention relates to a device for reducing dust emissions during chimney cleaning, comprising a cleaning tool that can be inserted into a chimney (1) through a cleaning opening (2) and is movable inside the chimney (1) by means of an elastic shaft (6). The device is characterized by having a frame that can be mounted in or in front of the cleaning opening (2), wherein two spaced-apart dust-retaining passages for the shaft (6) are formed on the frame by means of elastic elements, and wherein a space is formed between the frame and the dust-retaining passages, into which at least one extraction opening (14) leads. The invention further relates to a method for cleaning a chimney (1) with reduced dust emissions and an application of the device for dust-reduced cleaning of a chimney (1).