Tubular heat exchanger and packaging method of tubular heat exchanger

Patent metadata

Field	Value
Publication number	US-11656039-B2
Application number	US-202117490089-A
Country	US
Kind code	B2
Filing date	Sep 30, 2021
Priority date	Dec 16, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A tubular heat exchanger includes an upper tube plate box, a lower tube plate box, a plurality of heat exchange tubes, and a pressure bolt. Each heat exchange tube includes an inlet end and an outlet end opposite to the inlet end, the inlet end passes through the upper tube plate box, the outlet end passes through the lower tube plate box, the first sealing rubber is filled in a gap between the plurality of heat exchange tubes and the upper tube plate box, and the second sealing rubber is filled in a gap between the plurality of the heat exchange tubes and lower tube plate box. The pressure bolt is located between the upper tube plate box and the lower tube plate box. The present application also relates to a packaging method of the tubular heat exchanger.

First claim

What is claimed is:

1. A packaging method of a tubular heat exchanger, comprising:
S 1 , arranging an upper tube plate box, a lower tube plate box, and a plurality of heat exchange tubes, wherein each of the upper tube plate box and the lower tube plate box defines a plurality of openings, and the plurality of heat exchange tubes extends through the plurality of openings;
S 2 , filling the upper tube plate box and the lower tube plate box with a liquid sealing rubber, wherein the liquid sealing rubber is filled in a gap between the plurality of heat exchange tubes and the upper tube plate box, and a gap between the plurality of heat exchange tubes and the lower tube plate box; and curing the liquid sealing rubber, so that the plurality of heat exchange tubes is fixed in the upper tube plate box and the lower tube plate box; and
S 3 , installing a pressure bolt on the upper tube plate box and the lower tube plate box to apply and adjust a sealing pressure.

2. The packaging method of claim 1 , wherein in the step S 1 , each of the upper tube plate box and the lower tube plate box comprises an upper tube plate, a lower tube plate, and a side plate, the upper tube plate, the lower tube plate, and the side plates cooperatively form a cavity; and placing a tie rod between the upper tube plate and the lower tube plate along an axial direction of the plurality of heat exchange tubes.

3. The packaging method of claim 1 , wherein two ends of the tie rod are respectively welded to the upper tube plate and the lower tube plate by a welding connection, a screw connection or a bolt-nut connection.

4. The packaging method of claim 1 , wherein in the step S 2 , a viscosity of the liquid sealing rubber ranges from 500 mpa·s to 100000 mpa·s.

5. The packaging method of claim 1 , wherein in the step S 2 , a viscosity of the liquid sealing rubber ranges from 2000 mpa·s to 20000 mpa·s.

6. The packaging method of claim 1 , wherein each of the upper tube plate box and the lower tube plate box is formed by mechanical cutting and welding processing, or 3D printing.

Assignees

• Univ Tsinghua
• Hon Hai Prec Ind Co Ltd

Inventors

• Ren jian-xun
• Hao jun-hong

Classifications

• F28F9/0226

  with resilient gaskets · CPC title

• F28F9/26

  Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H9/14 {, connecting headers with inlet or outlet fittings F28F9/0246}) · CPC title

• B23P15/26

  heat exchangers {or the like (making heat exchangers by methods covered by other subclasses B21D53/02)} · CPC title

• F28F9/013

  for tubes or tube-assemblies · CPC title

• F28F9/0221

  Header boxes or end plates formed by stacked elements · CPC title