CN2632615Y

CN2632615Y - Heat exchanger

Info

Publication number: CN2632615Y
Application number: CN 03265878
Authority: CN
Inventors: 李东升
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-06
Filing date: 2003-06-06
Publication date: 2004-08-11
Anticipated expiration: 2013-06-06

Abstract

The utility model discloses a heat exchanger, which comprises a shell and a recuperator tube inside the shell; two ends of the recuperator tube are communicated and fixed with a shell side inlet and a shell side outlet on the shell; the recuperator tube is coiled into a columnar structure in blossom cross from outside to inside and from small to large, and is arranged into the shell; the shell of the heat exchanger is composed of a plurality of tubings in series. Compared with the prior similar products, the utility model has the advantages of large heat interchanging area, high heat transfer efficiency, small size, light weight, pleasing appearance, convenient installation and long life time.

Description

Heat exchanger

Technical field

The utility model belongs to mechanical field, is a kind of heat exchanger specifically.

Technical field

Known liquid-liquid heat exchanger, plate type heat exchanger and pipe heat exchanger are arranged, pipe heat exchanger has tubular heat exchanger and coil heat exchanger, tubular heat exchanger mostly is large heat exchanger, mainly use at the industrial heat transmission equipment of doing, small-sized or civilian heat exchanger adopts coil heat exchanger more, this heat exchanger is made up of a snakelike heat exchanger tube of helical disk coiled that is installed in the shell body, and this heat exchanger structure is simple, and is easy to process, weld bond is few, but because heat exchanger tube coiled serpentine configuration, the interior space availability ratio of housing is low, and the heat exchange area in the unit space is relatively little, heat transfer rate still is not very high, and bigger room for promotion is arranged.

The utility model content

At the problems referred to above that existing coil heat exchanger exists, the purpose of this utility model is to provide a kind of heat exchange area relatively large, and heat exchange efficiency is higher, and is aesthetic in appearance, heat exchanger easy for installation.

In order to achieve the above object, the heat exchanger that the utility model provides adopts following technical scheme: heat exchanger comprises the heat exchanger tube in housing and the housing, shell side inlet tube on heat exchanger tube two ends and the housing and the shell side outlet is communicated with and fixing, heat exchanger tube from the inside to surface, plum blossom Cross Trade coiled column type structure is installed in the housing from small to large.

Described housing can be made up of many tubing of end series connection, and tube side inlet tube and tube side outlet are arranged on the tubing.Can form the muitishell structure like this, increase heat exchange area, reduce the generation of hot short circuit phenomenon.

The tubing of described series connection can be two, lower end series connection, and there is end socket the upper end, and the tube side inlet tube and the tube side outlet that are communicated with heat exchanger tube are positioned on the end socket, and shell side inlet tube on the tubing and shell side outlet are positioned at tubing to be had on the tube wall of an end of end socket.

This heat exchanger is because the special construction of shell and/or heat exchanger tube has following advantage:

(1) heat exchanger tube adopt special from the inside to surface, plum blossom Cross Trade from small to large is around mode, makes the coiling of heat exchanger tube compact more, longer with respect to snakelike coiling mode heat exchanger tube length in same space, heat exchange area is bigger; And the liquid form of heat exchanging fluid is complicated more between pipe, and disturbance is violent, forms turbulent flow, and heat transfer coefficient is increased.

(2) housing is in series by many pipes, shell side is longer under the identical situation in inner space, the shell-side fluid flow velocity is fast, reduce to change the heat short circuit that the heat pipe outer fluid convection current of coiling causes, heat transfer efficiency is increased, heat transfer rate improves more than 15% compared with similar products, and the fluid import and export temperature difference increases; Inner space utilization rate height in addition, and easy to process.

(3) aesthetic in appearance, in light weight, easy for installation.

(4) compact conformation, weld seam is few, so long service life.

Description of drawings

Fig. 1 partly cuts open structure chart for heat exchanger of the present utility model;

Fig. 2 is the left view of heat exchanger shown in Figure 1;

Fig. 3 is the vertical view of heat exchanger shown in Figure 1.

The specific embodiment

Below in conjunction with accompanying drawing and better embodiment heat exchanger of the present utility model is described further.

Arrive shown in Figure 3 as Fig. 1, the housing of heat exchanger is two

pipes

1,2,1,2 ends series connection under two pipes, there is end socket 3,4 the pipe upper end, on end socket 3,4, be welded with tube side inlet tube 5 and tube side outlet 6 as running water water inlet pipe and outlet pipe, on two pipes, 1,2 upper end tube walls, respectively be welded with a shell side inlet tube 7 and shell side outlet 8, the shell structure of this double-tube series makes the elongated formation of the shell side of heat exchanger bivalve journey structure, rate of flow of fluid is fast, reduce the hot short circuit of heat release fluid, and compact conformation is attractive in appearance.A heat exchanger tube 9 is arranged in pipe 1,2, and heat exchanger tube 9 two ends are fixed on the end socket and with tube side inlet tube 5 and tube side outlet 6 and are communicated with.Heat exchanger tube 9 coils in two housing pipes 1,2, its coiling structure for from inside to outside, from small to large, plum blossom is crossed as column type, the column type that forms two series connection is coiled structure.Owing to adopting this special coiling form, make the compact more of heat exchanger tube coiling, tube side is longer, and heat exchange area increases, and owing to fluid course between pipe is irregular, makes the fluid flow disturbance violent, and heat transfer system is higher.

The boiler water of high temperature is entered by shell side inlet tube 7 during use, flows out from shell side outlet 8 behind the U-shaped shell side passage of flowing through.Running water is flowed out by tube side outlet 6 after tube side inlet tube 5 is flowed through heat exchanger tube 9 heat exchange of coiling, and forms also stream heat exchange; If boiler water or running water flow process is reverse, form countercurrent flow, also can obtain the higher import and export temperature difference.

Claims

1, a kind of heat exchanger, comprise the heat exchanger tube in housing and the housing, it is characterized in that: the shell side inlet tube on heat exchanger tube two ends and the housing and the shell side outlet is communicated with and fixing, heat exchanger tube from the inside to surface, plum blossom Cross Trade coiled column type structure is installed in the housing from small to large.

2, heat exchanger as claimed in claim 1 is characterized in that: described housing is made up of many tubing of end series connection, and tube side inlet tube and tube side outlet are arranged on the tubing.

3, heat exchanger as claimed in claim 2, it is characterized in that: the tubing of described series connection is two, the lower end series connection, there is end socket the upper end, the tube side inlet tube and the tube side outlet that are communicated with heat exchanger tube are positioned on the end socket, and shell side inlet tube on the tubing and shell side outlet are positioned at tubing to be had on the tube wall of an end of end socket.