CN2338717Y

CN2338717Y - Radiator made of aluminium finned tube

Info

Publication number: CN2338717Y
Application number: CN 98241538
Authority: CN
Inventors: 李志刚; 王恒月
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-19
Filing date: 1998-10-19
Publication date: 1999-09-15
Anticipated expiration: 2008-10-19

Abstract

The utility model relates to a radiator made of aluminium fin tubes, which comprises a plurality of aluminium fin radiating tubes and a fixing frame, wherein, the aluminium fin radiating tubes are connected in series, annular fins are evenly distributed on the radiating tubes, and each annular fin is formed by the extension of screw threads of the outer wall of each radiating tube. The utility model is characterized in that the separation distance T of the fins is not smaller than 4-8 mm when the fin height H of the aluminium fin radiating tube is 16-18.5 mm, and the air fluidity between the fins is good under the natural convection condition. In addition, the utility model also has the characteristics of high heat efficiency, light weight, beautiful appearance, easy cleanness, etc. The utility model can be widely used for heating devices of hotels and dwelling houses, and other various heat exchanging devices.

Description

A kind of aluminum finned tube radiator

The utility model relates to a kind of improved radiator, belongs to technical field of heat exchangers.

The aluminium tuberculated pipe, be to utilize good extruding of aluminium material and plasticity directly on thin tube wall, to roll out the fin of annular, the contactless thermal resistance of this aluminium tuberculated pipe, have that thermal conductivity is good, the unit length heat transfer area is big, heat output is high, and the smooth no burr of fin, the less scaling characteristics such as cleaning that are easy to are widely used in the equipment such as engine refrigeration.The aluminium tuberculated pipe, for the heat transfer area that makes unit length increases, design routinely, the aluminium number of fins of general unit length is more, spacing between the aluminium fin is less, general all about 2MM, the aluminium tuberculated pipe of this version need be operated under the forced convection condition, as when being used to have the automobile of ventilating fan, it has good heat radiation cooling effect, but under the free convection condition, then radiating effect is very undesirable, as when the indoor heating facility, its radiating effect can not show a candle to the effect under the forced convection condition.For this reason, need the structure of this aluminium tuberculated pipe is studied improvement, make it under the free convection condition, also have good heat dispersion, to adapt to instructions for use widely.

The purpose of this utility model is to provide a kind of aluminum finned tube formula radiator that has excellent heat dispersion performance under the free convection service condition.

The purpose of this utility model is achieved in that

A kind of aluminum finned tube radiator, it comprises aluminium tuberculated pipe and the fixed mount that some polyphones connect, uniform ring fin on the described radiating tube, this fin is extended to form by the pipe outer wall thread, its characteristics are, during the fin height H=16-18.5MM of described aluminum finned tube 1, the spacing T of its fin 〉=4-8MM.

For preventing the corrosion of heat transferring medium, above-mentioned radiator installs bushing pipe 2 additional in the described aluminium tuberculated pipe.

Above-mentioned radiator, described fixed mount are that cross section is the barrel mast 3 of " " shape, and quantity is two, and " " open slot of two barrel masts is set in the aluminium tuberculated pipe two ends that polyphone connects.

Above-mentioned radiator, the aluminium tuberculated pipe that described polyphone connects installs outer cover 4 outward additional.

The utility model, adopt to enlarge the structural design of aluminium spacing of fin, make air-flow between two fins except that laminar flow, also can produce relatively large turbulent flow, thereby improved the flowability of gas under the free convection condition between fin effectively, improved the heat dispersion of aluminium tuberculated pipe; The radiator that adopts this structure aluminium tuberculated pipe to make has hot heat transfer efficiency height, pressure-bearing height, in light weight, compact conformation, and characteristics such as easy cleaning handsome in appearance can be widely used as the heating plant and various other the heat-exchange device of hotel, dwelling house.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the fin structure schematic diagram of aluminium tuberculated pipe in the utility model;

Fig. 2 is the aluminium tuberculated pipe structural representation of belt material pipe;

Fig. 3 is the utility model overall structure schematic diagram;

Fig. 4 is the half sectional view of overlooking of Fig. 3.

Consult Fig. 1, in the aluminium tuberculated pipe, the helix pitch between the fin is a very important design parameter.Existing aluminium tuberculated pipe heat exchanger, be under the forced convection condition, to use mostly, gas has good flowability under the effect of air draft or blower unit, so for increasing the heat transfer area of unit length, the spacing of its fin is generally all less, as fin outer diameter D=25-66MM, during fin height H=6.9-16.3MM, spacing of fin T only is 2.3-2.5MM, this closely spaced fin structure, gas between two fins is essentially the laminar flow shape along fin surface under nature, turbulent air flow composition between two fins seldom, so undesirable at the radiating effect of free convection condition; In the utility model during the fin height H=16-18.5 of aluminium tuberculated pipe, its spacing of fin 〉=4-8MM, the fin structure of this big spacing, gas between fin under the free convection state except that having along the laminar flow of fin surface, also can producing relatively large turbulent air flow between two fins, thereby the flow velocity of gas and flow all are greatly improved, have improved the radiating effect under the aluminium fin free convection state effectively.

Consult Fig. 2, for avoiding in the heating system media such as soda acid in the boiler water to the corrosion of aluminum pipe, the aluminium tuberculated pipe can adopt the composite tube type structure, in pipe, install bushing pipe 2 additional, the outer surface of this bushing pipe should contact preferably with the inner surface of radiating tube, to reduce the thermal contact resistance value as far as possible, this lining pipe adopts steel pipe, stainless steel tube and other material tubing according to the corrosivity of medium.

Consult Fig. 3, Fig. 4, the utility model illustrated embodiment by 4 not the aluminium tuberculated pipe 1 of belt material pipe from top to bottom horizontally form, the head and the tail of each radiating tube connect by the bend pipe polyphone, the port of export of top radiating tube connects outlet, the port of export of lowermost end radiating tube connects inlet tube, connected mode can be flange and connects, and also can be welding, pipe joint connection or roll extrusion connection etc.; Open slot on 2 faces of two barrel masts is set in the radiating tube two ends that polyphone connects, and fixedlys connected with radiating tube; Outer cover 4 can be " " shape that integral body covers radiator, also can be the plate shaped of the upright side that only covers radiator, and outer cover fixedly is loaded on two barrel masts 2 by screw, and outer cover can be corrosion resistant plate, also can be the plastic-blasting plate of various colours, to strengthen aesthetic.

When the utility model uses, can adopt the mode of installing continuously along body of wall, indoor temperature everywhere is evenly gentle, can obtain good comfort.Be not that the aluminium tuberculated pipe is all arranged on the overall length this moment yet, for example, 10 meters of bodies of wall are long, only need 6 meters aluminium radiating fin pipes according to required heat dissipation capacity, can 6 meters radiating tubes are uniform along 10 meters walls, has only pipeline in the place that does not have radiating tube, pipeline is ensconced under the outer cover, and exteriorly, continuous stainless steel outer cover or color spray outer cover and body of wall join together, economy attractive in appearance is is very suitablely installed and used at each hotel, premises.The utility model is through the detection of building engineering quality supervision test center and Thermal Power Engineering radiator sensing chamber of Tsing-Hua University, and product reaches industry standard.

Claims

1. aluminum finned tube radiator, it comprises aluminium tuberculated pipe and the fixed mount that some polyphones connect, uniform ring fin on the described radiating tube, this fin is extended to form by the pipe outer wall thread, it is characterized in that, during the fin height H=16-18.5MM of described aluminum finned tube [1], the spacing T of its fin 〉=4-8MM.

2. radiator according to claim 1 is characterized in that, installs bushing pipe [2] in the described aluminium tuberculated pipe additional.

3. radiator according to claim 2 is characterized in that, described fixed mount is that cross section is the barrel mast [3] of " コ " shape, and quantity is two, and " " open slot of two barrel masts is set in the aluminium tuberculated pipe two ends that polyphone connects.

4. radiator according to claim 3 is characterized in that, the aluminium tuberculated pipe that described polyphone connects installs outer cover [4] outward additional.