Pipe Freezing Coil Wrap for Fast Installation and Heat Transfer

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Solution Overview

Problem

Existing pipe freezing methods face difficulties in efficiently wrapping cooling coils around cylindrical pipes, leading to reduced thermal efficiency and increased time and cost for maintenance due to the complexity of bending and installing the coils.

Innovation Solution

A rapid pipe freezing method involving a flexible cover sheet with Velcro attachments and a coil fixing unit, allowing the cooling coil to be easily pressed and fixed onto the pipe's outer circumference, enabling efficient refrigerant flow and improved thermal efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If cooling coils are wound on the outer circumference surface of the pipe, then thermal efficiency is improved, but the complexity of bending the coils to fit the cylindrical surface increases significantly

Engineering Contradiction:
Improvethermal efficiencyVSAvoidcoil bending complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The cooling coil is divided into multiple straight sections connected by bend sections. Each straight section is bent independently to match the cylindrical pipe surface, breaking down the complex continuous bending into manageable discrete segments that are easier to fabricate and install

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cooling coil is designed with curved bend sections that match the cylindrical geometry of the pipe. The coil includes both straight sections and curved sections, where the curved sections are specifically shaped to conform to the pipe's outer circumference, enabling tight contact without excessive bending complexity

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Loss of energy

If the cooling coil is bent to fit snugly on the pipe surface, then thermal efficiency is improved, but the time required for installation increases

Engineering Contradiction:
Improvethermal efficiencyVSAvoidinstallation time
Core Design Contradiction:
Loss of energyVSLoss of time

Solution Approach 1:

The cooling coil is pre-bent into the required shape with straight and curved sections before installation. This preliminary shaping allows the coil to be quickly wrapped around the pipe during installation without requiring time-consuming on-site bending operations, thus reducing installation time while maintaining the snug fit needed for thermal efficiency

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If conventional bending methods are used for the cooling coil, then manufacturing simplicity is maintained, but thermal efficiency is degraded due to poor contact with the pipe surface

Engineering Contradiction:
Improvecoil manufacturing easeVSAvoidthermal efficiency
Core Design Contradiction:
Ease of manufactureVSLoss of energy

Solution Approach 1:

The coil is segmented into straight and curved sections that can be manufactured using simple bending processes. Each segment is independently formed to achieve the required geometry, combining manufacturing simplicity with the ability to conform to the pipe surface for optimal thermal contact

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Curved sections are incorporated into the coil design to match the cylindrical pipe surface. These curved sections are formed using conventional bending methods but are specifically shaped to ensure tight contact with the pipe, thereby maintaining thermal efficiency without requiring complex manufacturing processes

Inventive Principle:
Principle #14Spheroidality (Curvature)

4Productivity

If the cooling coil is loosely wrapped on the pipe, then installation speed is improved, but thermal efficiency is reduced

Engineering Contradiction:
Improveinstallation speedVSAvoidthermal efficiency
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The segmented structure with straight and curved sections allows the coil to be quickly wrapped around the pipe while the pre-formed geometry ensures automatic conforming to the pipe surface. This segmentation enables fast installation without requiring complex adjustment procedures, while the curved sections ensure tight contact for thermal efficiency

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The curved sections of the coil are designed to naturally conform to the cylindrical pipe surface when wrapped. This geometric design ensures that the coil maintains tight contact with the pipe during installation, achieving both installation speed and thermal efficiency without requiring additional tightening operations

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

This method enhances thermal efficiency, reduces maintenance time and cost by allowing for quicker and more effective freezing of pipes without the need for specialized equipment.

Implementation Method 1

the cooling coils 23 are connected to a refrigerant freezing device... the liquid refrigerant turns into gas in the cooling coils 23... the inside of the sealed coil jacket 26 is frozen rapidly such that water inside the applied water supply 30 may be frozen rapidly

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

the liquid refrigerant turns into gas in the cooling coils 23... water inside the applied water supply 30 may be frozen rapidly

Methodology Applied
Scientific EffectPhase change: Phase Change

Data Source

PatentUS9951901B2Method for rapidly freezing pipe
Publication Date: 2018.04.24 SHIN IKHO
  • US9951901B2 patent drawing
  • US9951901B2 patent drawing
  • US9951901B2 patent drawing

AI summary

A rapid pipe freezing method including a process of wrapping the pipe with a cooling coil along the outer circumference surface of the pipe rapidly is disclosed. The method includes bending the cooling coil not to be blocked by itself so that a refrigerant flow through the inside thereof and arranging the cooling coil to form a freezing area, fixing the cooling coil to fix the cooling coil on one surface of the cover sheet such that at least one part of the freezing area may be overlapped with the cover sheet, installing the cover sheet wrapping the outer circumference surface of the pipe with the cover sheet such that the cooling coil of the freezing area may face the outer circumference surface of the pipe, and flowing a refrigerant by connecting a refrigerant cooling device to the one end of the cooling coil and the other end of the same and flowing a refrigerant through the inside of the cooling coil to freeze the inside of the pipe where the freezing area is overlapped.