Steam Trap Orifice Cleaning Rod for Online Sealed Maintenance
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Solution Overview
Problem
Existing condensate removal devices in steam traps often require offline maintenance to clean orifices, leading to downtime and energy losses due to the need to isolate the system, as the small orifices can become blocked by debris, making it difficult to access and clean without removing the steam trap from the pipeline.
Innovation Solution
A cleaning device with a reciprocally movable cleaning rod and a retractable hood or shield that allows for the insertion and protection of the rod into the orifice without affecting the sealed volume, enabling online cleaning by aligning the rod with the orifice through a cap mounted on the access port, and using a sealing mechanism to prevent gas or condensate leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the steam trap is removed from the pipeline to clean the orifice, then the orifice can be accessed and cleaned, but system downtime and energy losses occur
Solution Approach 1:
A cleaning device with a rod and cap assembly serves as an intermediary tool that can be inserted through the access port to reach the orifice without removing the steam trap. The rod can be manipulated to clear debris from the orifice while the steam trap remains installed in the pipeline, eliminating the need for system shutdown.
Solution Approach 2:
The cleaning device is segmented into separate components: a cap that seals the access port, a rod for cleaning the orifice, and a housing that contains the mechanism. This segmentation allows the cleaning function to be performed independently without affecting the main steam trap assembly or requiring pipeline disconnection.
2Ease of operation
If a cleaning rod is inserted into the orifice, then debris can be removed, but the sealed volume may be affected
Solution Approach 1:
The cap assembly acts as an intermediary sealing mechanism that maintains the sealed volume while allowing the cleaning rod to pass through. The cap seals around the rod or contains the rod within a sealed chamber, preventing steam or condensate leakage while enabling the rod to reach and clean the orifice.
Solution Approach 2:
A flexible sealing element or diaphragm is used to seal around the cleaning rod while allowing its movement. This flexible seal maintains the integrity of the sealed volume during rod insertion and retraction, preventing leakage while enabling the cleaning operation.
3Reliability
If the orifice is made small to prevent steam escape, then condensate blocking is improved, but the orifice becomes more susceptible to debris blockage
Solution Approach 1:
The cleaning rod extracts debris from the orifice by physically removing blocked material through the access port. The rod can be inserted to push debris out or retrieve it, clearing the small orifice without requiring enlargement that would compromise steam prevention capability.
Solution Approach 2:
The steam trap is equipped with an integrated cleaning capability through the access port and cleaning rod mechanism, allowing it to self-maintain without external intervention or system shutdown. The operator can periodically clear debris buildup, maintaining the small orifice's steam prevention function over extended periods.
Data Source
AI summary
A cleaning device for cleaning an orifice in a condensate removal device that is capable of use while the condensate removal device is on-line, i.e. during operation. In one aspect, the cleaning device provides a reciprocally movable cleaning rod that can be retractably insertable into the orifice. This can be done without affecting the sealed volume defined around the orifice. In another aspect, the cleaning device includes a retractable hood or shield over the cleaning rod, to protect when not inserted in the orifice.