Boiler Anchor Load Measurement and Adjustment Arrangement
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Solution Overview
Problem
Existing boiler suspension systems face challenges in accurately measuring and adjusting anchor loads during operation, particularly due to changes caused by contamination or structural modifications, which can lead to uneven load distribution and potential deformations.
Innovation Solution
A load measurement and adjustment arrangement that includes a pressure cell between the lantern and lifting device allows direct measurement of anchor loads and comparison to desired values, using a stretch nut with an inner sleeve and torque wrench for torsion-free lifting, and a double sheave for load distribution, enabling precise adjustment without bending moments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional spring suspensions or double rolling disk suspensions are used for boiler anchors, then the boiler can be suspended and loaded, but the anchor loads cannot be accurately measured or adjusted during operation
Solution Approach 1:
A load cell is introduced as an intermediary component between the lantern and the lifting device to measure anchor loads. This mediator enables direct measurement of the forces acting on anchors without fundamentally changing the suspension system's core function, resolving the contradiction by adding measurement capability while maintaining system simplicity.
Solution Approach 2:
The suspension system is designed to serve multiple functions: supporting the boiler weight, enabling load measurement through the load cell, and allowing load adjustment during operation. This multi-functionality approach resolves the contradiction by making the system capable of measurement without requiring a completely separate measurement system.
2Reliability
If anchor loads are adjusted during operation to compensate for contamination or structural changes, then load distribution can be optimized, but the adjustment process is complex and time-consuming
Solution Approach 1:
The load cell provides real-time feedback on anchor load values, which can be compared against target values to determine necessary adjustments. This feedback mechanism enables systematic load adjustment during operation, resolving the contradiction by providing the information needed for reliable load distribution while streamlining the adjustment process through measured-based decision making.
Solution Approach 2:
Target load values are predetermined based on design calculations before operation begins. This preliminary action enables quick comparison with actual measured loads during operation, allowing rapid adjustment decisions without complex real-time calculations, thus resolving the contradiction between reliability and time loss.
3Object-affected harmful factors
If a stretch nut with torque wrench is used for torsion-free lifting, then anchor torsion and boiler frame deformations are minimized, but the device requires more space and has higher weight
Solution Approach 1:
A stretch nut with inner and outer sleeves acts as an intermediary lifting mechanism that applies axial tensile force without causing torsion. This mediator device resolves the contradiction by eliminating harmful torsional effects during lifting while keeping the added weight acceptable compared to the damage prevention benefits.
Solution Approach 2:
The lifting device is segmented into functional components (inner sleeve, outer sleeve, washer, torque wrench) that can be selectively used. This segmentation allows torsion-free lifting when needed while enabling simpler lifting methods for routine operations, resolving the contradiction between preventing deformation and minimizing weight/space requirements.
4Manufacturing precision
If multiple anchors are adjusted simultaneously with individual arrangements, then each anchor can be precisely controlled, but the space requirement and assembly complexity increase
Solution Approach 1:
A single lantern structure is designed to support multiple load cells and serve multiple anchors simultaneously. This universal design resolves the contradiction by enabling precise control of multiple anchors through one integrated arrangement rather than requiring separate arrangements for each anchor, thus maintaining precision while reducing assembly complexity.
Data Source
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AI summary
The arrangement has armature that is provided with free end of anchor thread (3a) passes through a bearing on anchor plate (2a) and is screwed directly or indirectly on the anchor plate supporting anchor nut (4). A lantern (5) is provided with an opening (6) for the entry of armature in lantern with a lateral opening (S). The armature is supported on the lamp load cell (8). A distribution plate (11) having a passage opening (11a) for the armature and supported on the load distributor plate device for raising the armature torsion relative to the anchor plate. An independent claim is included for method load measurement or load setting.