CN2307277Y

CN2307277Y - Shell-and-tube heat exchanger

Info

Publication number: CN2307277Y
Application number: CN 97233766
Authority: CN
Inventors: 李瑞静
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-27
Filing date: 1997-06-27
Publication date: 1999-02-10
Anticipated expiration: 2007-06-27

Abstract

The utility model provides a shell-and-tube high-efficiency heat-exchanger, which is composed of a tube box, a shell and a heat exchanger core. The heat exchanger core is composed of heat exchange tubes which are arranged in a tubular type, and ellipsoidal structures are used by the cross-sections of the heat exchange tubes between a tube plate and a baffle plate and the cross-sections between two baffle plates. The utility model has the advantages of small size, simple structure and low manufacture cost, and is a novel high-efficiency heat-exchanger and can be widely popularized and used.

Description

The pipe shell type highly effective heat exchanger

The utility model relates to the efficient shell-and-tube heat exchanger of a kind of heat exchanger, particularly a kind of industrial use.

Existing shell-and-tube heat exchanger, prolong more and attack traditional structure, basically by bobbin carriage, three assemblies of housing and heat exchanger fuse constitute, wherein the heat exchanger fuse is the core of whole heat exchanger, heat exchange element adopts traditional heat exchanger tube, the rounded tubulation of heat exchanger tube is arranged, this arrangement mode makes that the very difficult heat of the center heat of mobile fluid conducts to tube wall in pipe, the fluid layer stream mode, the Reynolds number of fluid is little, heat transfer coefficient is little in the pipe, in order to improve heat exchange efficiency, must dwindle the diameter of heat exchanger tube, increase heat exchanger quantity, so make heat exchanger volume and quality greatly increase, this is not only bad for the installation and the transportation of heat exchanger, simultaneously, the production cost of heat exchanger is increased, and the manufacturing process of heat exchanger becomes more complicated on the other hand.

It is little, simple in structure that the purpose of this utility model provides a kind of volume, pipe shell type highly effective heat exchanger easy to manufacture and with low cost.

The purpose of this utility model is achieved in that it is made of bobbin carriage, housing and three assemblies of heat exchanger fuse, is characterized in that: form the heat exchanger fuse and be heat exchanger tube that tubulation the arranges cross section employing ellipsoidal structure between tube sheet and deflection plate, two deflection plates.

The heat exchanger tube of the utility model between tube sheet and deflection plate, two deflection plates adopts ellipsoidal structure, heat exchanger tube inner fluid Reynolds number is heightened, the tube fluid random motion, fully carry out heat exchange with tube wall, the intraductal heat transfer factor heightens, heat transfer coefficient in the pipe is improved greatly, thereby can make heat exchanger under the prerequisite that keeps original heat exchange efficiency, its volume and quality are reduced, simultaneously because oval heat exchanger tube self has positioning action, therefore can default distance sink tube and the fixedly use of deflection plate pull bar, it is corresponding simple that its manufacturing process also becomes.

Below in conjunction with accompanying drawing in detail the utility model is described in detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model embodiment one heat exchange tube structure cutaway view.

Fig. 3 is the utility model embodiment two heat exchange tube structure cutaway views.

Fig. 4 is a heat exchanger tube cross-sectional structure schematic diagram.

Shown in Fig. 1,4, the utility model comprises bobbin carriage 1, housing 4 and 3 three groups of heat exchanger core Part, heat exchanger core 3 is made up of heat exchanger tube 2, and heat exchanger tube 2 is tubulation arranges, different from existing heat exchanger Be that the cross section of heat exchanger tube 2 between tube sheet 5 and deflection plate 6, deflection plate 6 and deflection plate 6 adopts Ellipsoidal structure.

Embodiment one, and as shown in Figure 2, for cross section is oval-shaped elliptical tube, heat exchanger tube 2 runs through heat exchanger tube 2 and the part that is positioned tube sheet 5 and deflection plate 6 still is round tube between tube sheet 5 and deflection plate 6, deflection plate 6 and deflection plate 6.

Embodiment two, and as shown in Figure 3, the part that heat exchanger tube 2 contacts with tube sheet 5 is a round tube, and remainder is an elliptical tube.

Claims

1. pipe shell type highly effective heat exchanger.It is made of bobbin carriage, housing and three assemblies of heat exchanger fuse, it is characterized in that: form the heat exchanger fuse and be heat exchanger tube that tubulation the arranges cross section employing ellipsoidal structure between tube sheet and deflection plate, two deflection plates.

2. pipe shell type highly effective heat exchanger as claimed in claim 1 is characterized in that: heat exchanger tube runs through and the part that is positioned tube sheet and deflection plate still is round tube.

3. pipe shell type highly effective heat exchanger as claimed in claim 1 is characterized in that: the part that heat exchanger tube contacts with tube sheet is a round tube, and remainder is an elliptical tube.