CN2060871U

CN2060871U - Aluminieum tube sheet heat exchanger

Info

Publication number: CN2060871U
Application number: CN 90210616
Authority: CN
Inventors: 高常宝
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-02-08
Filing date: 1990-02-08
Publication date: 1990-08-22

Abstract

The utility model relates to a tubular heat exchanger, which is characterized in that inner-ribbed aluminium tubes are taken as tube bundles in the heat exchanger instead of light tubes, heat exchanging area between the inner wall of the tube bundles and fluid in tubes is enlarged, and heat transmission at one side having minor heat transfer coefficient in fluid heat exchange systems at both sides of a metallic wall is intensified. Aluminium tubes have the integrated advantages of mature extrusion process, high production efficiency, regular molding, smooth surface, uniform wall thickness, small specific gravity, high thermal conductivity, favorable welding performance, corrosion resistance, high intensity, hard and tough mechanical property, etc., and thus the heat exchanger of the utility model can be widely used as a heat exchange facility for diet, medicines, chemical engineering, etc.

Description

Aluminieum tube sheet heat exchanger

The design is a kind of technological improvement of tubular heat exchanger.

Tubular heat exchanger is widely used in the heat exchange of two kinds of differential temperature fluids most.Present popular various tubular heat exchangers, although housing, tube bank, tube sheet, baffle plate, and the design of aspect such as fluid adapter on each is characteristic, their common ground is to adopt spaced walls and the heat exchange wall of some parallel light pipes (promptly managing inside and outside wall all is smooth faces of cylinder) tube banks as two kinds of fluids; Increase heat exchange area as need, have only the quantity that increases tube bank or prolong the length of tube bank, promptly enlarge heat exchanger scale, consume more cost of manufacture.

By the thermal conduction study basic theories as can be known, the heat exchange of metal wall two side liquids should be strengthened the less side of exothermic coefficient (in " the thermal conduction study basis " of being edited as inscription on pottery Ambrose as described in chapter 6 the 5th joint) emphatically.The design replaces the tube bank of light pipe as heat exchanger with aluminium alloy internal-rib type pipe, thereby has enlarged the heat transfer area of tube bank inwall and fluid, to reach the rate of heat transfer of having strengthened this side and the purpose of improving the heat exchange effect.

The design's heat exchanger is taken over institutes such as VI-1, VI-2, shell side adapter VII-1, VII-2 and is formed by housing II, tube sheet III, baffle plate IV, end socket V, tube side, it is characterized in that: (1) is in the housing II, be provided with some parallel internal-rib type pipe I as the tube bank in the heat exchanger, the pipe shaft of I passes the through hole on the IV, the external cylindrical surface of its two end and the inner cylinder face close-fitting of the some corresponding cylindrical holes on the III; Uniform some and tube wall are vertical straight rib J of one on the inner cylindrical wall face of I, the flow process of a kind of fluid of formation between the space of the internal face of J and I, are tube side Y; The forward surface of the external cylindrical surface of I and the internal face of II, III constitute one other fluid flow process, be shell side G; (2) I line aluminium alloy extrudate, the design of the quantity of inner rib plate J and radial height should take into account extrusion process and the high temperature that can stand fluid under the heat exchange condition of work in the I.(3) be about to heat exchange a kind of and take over VI-1 for the less fluid of metal wall exothermic coefficient (as steam, flue gas, air etc.) by tube side and flow into, behind the tube side Y that flows through, flow out by VI-2; Meanwhile, the another kind of fluid bigger to the metal covering exothermic coefficient (as water, other liquid etc.) of comparing with aforesaid fluid taken over VII-1 by shell side and flowed into, and behind the shell side G that flows through, flowed out by VII-2; Two kinds of fluids promptly conduct heat by the wall of I, reach the effect of heat exchange.

The design has brought into play that aluminum extrusion process maturation, production efficiency height, moulding rule, wall are thin evenly, smooth surface, proportion is little, thermal conductivity is high, welding performance is better, the strong and unyielding advantage such as hold concurrently mutually of corrosion-resistant intensity height, mechanical performance; Can be widely used as the heat exchange facility of aspects such as diet, medicine, chemical industry with inner rib aluminum type tube as the tubular heat exchanger of tube bank, its advantage is that the heat transfer area of tube bank inwall and fluid is big, and the heat exchange effect is significantly improved; That is, desire to obtain identical heat exchange effect, use heat exchanger can reduce the quantity of tube bank and length, saving cost of manufacture with the design's feature.Because manufacturing process and production cost aspect, the design only limits to aluminum alloy extrusion section bar as the tube bank in the heat exchanger, and it has opened up new approach for the correct aluminium section bar that uses.

Accompanying drawing 1 is the structural representation of the design's tubular heat exchanger, and Fig. 2 is the A-A profile among Fig. 1.Among the figure:

I: inner rib aluminum type tube tube bank

II: housing

III: tube sheet

IV: baffle plate

V: end socket

VI-1, VI-2: tube side is taken over

VII-1, VII-2: shell side is taken over

J: the inner rib plate of I

Y: fluid tube side

G: fluid shell side

Claims

A kind of tubular heat exchanger, taken over institutes such as VI-1, VI-2, shell side adapter VII-1, VII-2 is made up of housing II, tube sheet III, baffle plate IV, end socket V, tube side, it is characterized in that: (1) is provided with the tube bank of some parallel internal-rib type pipe I as this heat exchanger in the housing II; The pipe shaft of I is worn the through hole on the IV, the external cylindrical surface of its two end and the inner cylinder face close-fitting of the some corresponding cylindrical holes on the III; Uniform some and tube wall are the longitudinal fin J of one on the inner cylinder face of I, the flow process of a kind of fluid of formation between the space of the internal face of J and I, are the tube side V; The forward surface of the outside cylinder wall of I and the internal face of II, III constitute one other fluid flow process, be shell side G; (2) I line aluminium alloy extrudate.