CN2611859Y

CN2611859Y - H-shape rib heat transfer tube element

Info

Publication number: CN2611859Y
Application number: CN 03229969
Authority: CN
Inventors: 周国强
Original assignee: ZHILONG HEAT EXCHANGERS PLANT SHANGHAI
Current assignee: ZHILONG HEAT EXCHANGERS PLANT SHANGHAI
Priority date: 2003-04-02
Filing date: 2003-04-02
Publication date: 2004-04-14
Anticipated expiration: 2013-04-02

Abstract

The utility model relates to an H-type gilled heat transfer pipe element, which comprises a line pipe, is characterized in that a plurality set of gills which comprises two are provided on the outer wall of the line pipe, the two gills of each set are symmetrical, and forms a square outline. The utility model has the advantages that the heat exchange area of the heat transfer pipe can be extended with several times, the structure is compact, the space occupancy rate is small, the consumption of the stuff can be saved, besides it is suitable for the heat transfer operating mode with lots of dust and air current of the coal-burning boiler, and is capable of enhancing the abrasion resistance of the heat transfer pipe element which contains dust and air current.

Description

H type fin heat transfer pipe fitting

Technical field

The utility model relates to the heat transfer pipe in a kind of convection recuperator, particularly a kind of H type fin heat transfer pipe fitting.

Background technology

At present for making boiler convection heating surface compact conformation, reduce the consumption of metal material, fume side at convection heating surface adopts the extended surface heating surface, main vertical fin heating surface or the membrane type heating surface of adopting, but their the extended surface heating surface area quantity that heating surface increased is quite limited, for further reducing the space that heating surface occupied, bring into use the heating surface of spiral ribs chip in recent years, but the heating surface of spiral ribs chip only can be used for dust free air-flow, as combustion gas, in the oil burning boiler, coal-burning boiler at many dusts is then grey at the intrafascicular easy knot of heating surface tube, cause the obstruction of exhaust gases passes, because the heated face structure compactness of spiral ribs chip, in case it is clear that the knot ash will be difficult to, and influences the safe operation of equipment, and the heat-transfer pipe of spiral ribs chip is owing to be subjected to the restriction of fin with steel band ductility, its fin height is restricted, and the expansion multiplying power of extended surface is lower.

Summary of the invention

The purpose of this utility model is to solve used vertical fin heating surface of boiler convection heating surface or membrane type heating surface in the prior art, but their the extended surface heating surface area quantity that heating surface increased is quite limited, and the heating surface of spiral ribs chip only can be used for dust free air-flow, in combustion gas, oil burning boiler, coal-burning boiler at many dusts is then grey at the intrafascicular easy knot of heating surface tube, cause the obstruction of exhaust gases passes, because the heated face structure compactness of spiral ribs chip, in case it is clear that the knot ash will be difficult to, influence the problem of the safe operation of equipment.The utility model design H type fin heat transfer pipe fitting comprises pipeline, it is characterized in that: the fin of two one group of many group is arranged on pipeline outer wall, and two fins of each group on the pipeline outer wall are symmetry to be placed, and the outline of every group of two fins is square.The utility model has the advantages that the heat exchange area that can become several times ground expansion heat-transfer pipe, compact conformation, it is little to occupy the space, saves the consumption of material, can be suitable for the heat exchange operating mode of many dusts air-flow of coal-burning boiler, and the antiwear property that contains heat transfer pipe in the grey air-flow is strengthened.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated,

Accompanying drawing 1 is a structural representation of the present utility model,

Accompanying drawing 2 is the side structure schematic diagram of Fig. 1 of the present utility model,

The specific embodiment

Comprise pipeline 1 among the figure, it is characterized in that: the fin 2 that two one group of many group are arranged on pipeline 1 outer wall, two fins 2 of each group on pipeline 1 outer wall are symmetry and place, the outline of every group of two fins 2 is square, owing to area maximum square in certain space, therefore outline is that square fin can have maximum available heat exchange area, be not subjected to the fin height to be subjected to the restriction of steel band ductility in the manufacturing, therefore maximum available heat exchange area can be arranged, and pipeline 1 can parallelly be placed, make fin form passage naturally, dust is difficult for tying black dirt on fin, also blows the ash cleaning easily if any dust.

Claims

1, H type fin heat transfer pipe fitting comprises pipeline, it is characterized in that: the fin of two one group of many group is arranged on pipeline outer wall,

2, by the described H type of claim 1 fin heat transfer pipe fitting, it is characterized in that: two fins of each group on the pipeline outer wall are symmetry to be placed,

3, by claim 1 or 2 described H type fin heat transfer pipe fittings, it is characterized in that: the outline of every group of two fins is square.