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Double-pipe heat exchanger

A heat exchanger, casing type technology, applied in the direction of heat exchanger type, heat exchanger shell, indirect heat exchanger, etc., can solve the problems of lack of production and application, achieve light weight, increased overall life, durable Corrosive effect

Inactive Publication Date: 2010-07-14
SHANGHAI CHUNHUA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no practical sleeve-and-tube heat exchanger with plastic as the outer tube on the market at present, mainly due to the lack of a solution that can be actually produced and applied. The proposal of the present invention solves the above-mentioned problems

Method used

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Examples

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Embodiment Construction

[0043] figure 1 It is a three-dimensional schematic diagram of a single-layer assembly example of the present invention, figure 2 It is a schematic plan top view of a single-layer assembly example, both of which can vividly illustrate the general structure of the present invention. image 3 , Figure 4 The three-dimensional schematic diagrams of the matching parts of the H-shaped cross and the T-shaped tee are respectively shown, and the principle and process of the assembly of the matching parts of the H-shaped cross and the T-shaped tee can be easily understood.

[0044] In this example, the metal inserts of the H-shaped cross and the T-shaped tee adopt the same internal thread insert, the side passage of the T-shaped tee also adopts the same internal thread metal insert, and the rubber sealing ring also adopts the same internal thread. Specifications, which can effectively reduce the types of materials, reduce manufacturing and management costs. In this example, the H-s...

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Abstract

The invention discloses a double-pipe heat exchanger which is characterized in that an outer pipe is a plastic pipe and an inner pipe is a metal pipe; the two pipes are spliced through a U-shaped pipe with movable adapters, a rubber sealing ring and a plastic H-shaped four-way joint; and the two ports of the heat exchanger are separated and led out through a plastic T-shaped tee joint, an annular rubber sealing ring and a metal straight-through joint. Both the plastic T-shaped tee joint and the plastic H-shaped four-way joint are provided with ports which are provided with metal inserts, and round holes just for the inner pipe to pass through are arranged at the bottoms of the inserts. Two parallel straight pipe sections with equal length are respectively arranged at the two ends of the U-shaped pipe, two tubular threaded moveable adapters are respectively sleeved at the outsides of the two ends of the U-shaped pipe, and trumpet-shaped flarings are arranged at the ports of the two ends of the U-shape pipe. The heat exchanger is convenient to install, can be dismantled for cleaning and is low in cost.

Description

technical field [0001] The present invention relates to a heat exchanger, furthermore, the present invention is a casing type heat exchanger using a plastic pipe as an outer pipe. Background technique [0002] The casing heat exchanger is a common heat exchanger. Its basic structure is two tubes of different diameters. The larger diameter (generally called the outer tube) is sleeved outside the smaller diameter (generally called the inner tube). Two fluids with different temperatures (generally referred to as cold fluid and hot fluid) flow in opposite directions in the inner tube and the gap between the inner and outer tubes respectively, and exchange heat through the tube wall of the inner tube. [0003] At present, the common sleeve heat exchangers are mainly metal sleeves, that is, the inner tube and the outer tube are all metal tubes, such as copper tubes, stainless steel tubes, titanium tubes, etc. There are many shapes of the heat exchanger according to the different ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/10F28F21/06F28F21/08F28F9/26
CPCF28F9/26F28D7/106
Inventor 石卫华
Owner SHANGHAI CHUNHUA ELECTRONICS
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