Heat exchanger assembly and method for assembling same
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Solution Overview
Problem
The existing methods for connecting heat exchanger cold boxes require complex interconnections and the use of cranes for hoisting, increasing on-site workload and costs due to the large number of conduit connections needed.
Innovation Solution
A heat exchanger assembly and method that limits the number of pipelines to be connected on-site by encapsulating them in thermally isolating casings, allowing for connection using a forklift truck instead of a crane, and arranging cold boxes rationally based on site conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conduit box with multiple fluid pipelines, control lines and air lines is used for interconnection, then the dimensions of the column cold box can be reduced, but the on-site workload associated with connecting conduit connection ends and crane hoisting is increased
Solution Approach 1:
The invention divides the heat exchanger system into separate cold box units (first cold box, second cold box, and subcooler cold box) that can be manufactured and transported independently. Each cold box has pipelines extending through its opening, allowing modular assembly on-site without requiring complex conduit box interconnections, thus reducing on-site connection workload while maintaining compact dimensions.
2Ease of manufacture
If complex interconnection of conduit connection ends is performed, then all conduits and valves can be disposed in a separate conduit box, but the on-site workload and costs are increased due to the need for crane hoisting
Solution Approach 1:
The cold boxes are pre-manufactured with pipelines, openings, and internal components prepared in advance at the manufacturing location. The pipelines extend through the openings ready for connection, and the cold boxes are pre-filled with thermally isolating material. This preliminary preparation eliminates the need for complex on-site conduit connections and crane hoisting, significantly reducing on-site assembly time while maintaining ease of manufacture.
3Adaptability or versatility
If multiple pipelines are connected on-site between heat exchanger cold boxes, then the heat exchanger assembly can be assembled, but the complexity of hoisting and connection increases
Solution Approach 1:
The invention combines multiple cold boxes (first heat exchanger cold box, second heat exchanger cold box, and subcooler cold box) into an integrated heat exchanger assembly through simple pipeline connections. The pipelines extending through the openings of each cold box are directly connected to form continuous fluid pathways, eliminating the need for complex intermediate conduit connections and reducing overall connection complexity while maintaining assembly versatility.
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
Simplifies the on-site connection process, reduces costs, and maximizes site utilization by minimizing the complexity of hoisting and pipeline connections, while allowing for efficient heat exchange functionality.
Implementation Method 1
a first thermally isolating casing, in which the first group of pipelines and the third group of pipelines are connected; a second thermally isolating casing, in which the second group of pipelines and the fourth group of pipelines are connected
Data Source
AI summary
A heat exchanger assembly and a method for assembling the heat exchanger assembly is provided. The heat exchanger assembly comprises a first heat exchanger and a second heat exchanger, and a subcooler; a first heat exchanger cold box, for accommodating the first heat exchanger and heat exchange fluid pipelines, with a first opening being disposed in a side of the first heat exchanger cold box, and a first group of pipelines extending through the first opening; a second heat exchanger cold box, for accommodating the second heat exchanger and heat exchange fluid pipelines, with a second opening being disposed in a side of the second heat exchanger cold box, and a second group of pipelines extending through the second opening; a subcooler cold box, for accommodating the subcooler and heat exchange fluid pipelines, with a third opening and a fourth opening being disposed in a side of the subcooler cold box, and a third group of pipelines and a fourth group of pipelines extending through the third opening and the fourth opening respectively, wherein the first group of pipelines and the third group of pipelines are connected and encapsulated in a first thermally isolating casing, and the second group of pipelines and the fourth group of pipelines are connected and encapsulated in a second thermally isolating casing.