Coil and heat exchanger with the same

摘要

A coil consists of several arc-shaped tubes whose first end is connected to tail end sequentially to form a continuous curve. The angle spanning between the first end and the tail end of the arc-shaped tube is greater than 180 degrees. The center lines of joints of two adjacent arc-shaped tubes have a common tangent point or the center lines of joints of two adjacent arc-shaped tubes are in tangent connection with a center line of a straight tube. The coil and the heat exchanger with the same have impact construction, small volume and high heat exchange efficiency.

主权项

1. A heat exchanger, comprising a housing, a distribution tube, an effuser and a coiled pipe; wherein
said housing is constituted by a frame body, a first side plate and a second side plate disposed opposite to said first side plate, said first side plate and said second side plate are in sealed connection with said frame body to form an enclosure; said distribution tube has a distribution opening disposed thereon and said effuser has a collecting opening disposed thereon; said distribution tube and said effuser respectively penetrate into said housing and are in sealed connection with the housing through a distribution tube installation hole and an effuser installation hole formed on said housing; and said coiled pipe is placed inside said housing; one end of said coiled pipe is connected to said distribution opening while the other end of said coiled pipe is connected to said collecting opening; and said coiled pipe comprises a plurality of curved segments and straight segments integrally cast together; each said curved segment has a first end and a second end; each said straight segment is disposed between each two said curved segments; flexing angle of each said curved segment is larger than 180 degree; said first end and said second end of said curved segments are on the same plane; the central lines of two adjacent said curved segments have common tangency point at the joint of said two adjacent curved segments; or central lines of two adjacent said curved segments are tangentially connected to the central line of a straight segment; said coiled pipe is disposed parallel with said first side plate and said second side plate; said first side plate or said second side plate has a plurality of guiding device formed thereon, or both said first side plate and said second side plate respectively have a plurality guiding device formed thereon; said guiding devices coordinate with said coiled pipe, and a generatrix of each said guiding device is perpendicular to said first side plate and/or said second side plate respectively, a sealed connection between said distribution tube and said distribution tube installation hole is formed through a first connection plate in sealed connection with said distribution tube and integrally cast with said first side plate; a sealed connection between said effuser and said effuser installation hole is formed via a second connection plate in sealed connection with said effuser and integrally cast with said first side plate.