CN203687728U

CN203687728U - High-temperature-resisting heat exchange pipe for hot blast stove

Info

Publication number: CN203687728U
Application number: CN201320766025.3U
Authority: CN
Inventors: 李新明
Original assignee: Yuanping City Zhong Xin Boiler Dust Remover Manufactory
Current assignee: Yuanping City Zhong Xin Boiler Dust Remover Manufactory
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-07-02
Anticipated expiration: 2023-11-29

Abstract

The utility model relates to a heat exchange pipe for a hot blast stove, in particular to a high-temperature-resisting heat exchange pipe for the hot blast stove, which is provided for prolonging the overall service life of the hot blast stove. The high-temperature-resisting heat exchange pipe comprises a heat exchange pipe, narrow fins and wide fins, wherein the narrow fins and the wide fins are welded on the outer wall of the heat exchange pipe and are alternately welded, and 3-4 pieces of narrow fins are welded between every two wide fins. According to the high-temperature-resisting heat exchange pipe for the hot blast stove, disclosed by the utility model, the narrow fins and the wide fins are welded on the outer wall of the heat exchange pipe, thus a main body heat exchange pipe can be effectively protected from being directly scoured by high-temperature flames, the defect that the heat exchange pipe in a highest-temperature area is easily damaged is overcome, and the service life of the heat exchange pipe is effectively increased; the wide fins are firstly scoured, the exchange speed of flames and cold air is increased as the contact area of the wide fins in the width direction is large, and the heat exchange efficiency is effectively increased.

Description

Hot-blast stove is high temperature resistant heat exchanger tube

Technical field

The utility model relates to a kind of hot-blast stove heat exchanger tube, is specially the high temperature resistant heat exchanger tube of a kind of hot-blast stove.

Background technology

Mining hot-blast stove, while drying the coal combustion in hot-blast stove, the direct scouring part of combustion flame is the most close flare part of heat exchanging pipe group, because of nearest apart from burner hearth, calcined by highest temperature flame, this group heat exchanger tube with its by damage compared with the heat exchanger tube of rear section early, in the time that other heat exchanger tube is still intact state, this group is damaged apart from the nearest heat exchanger tube of burner hearth flare, has directly affected the service life of overall hot-blast furnace equipment.

Summary of the invention

The utility model, in order to extend the whole service life of hot-blast stove, provides a kind of hot-blast stove high temperature resistant heat exchanger tube.

The utility model adopts following technical scheme:

The high temperature resistant heat exchanger tube of a kind of hot-blast stove, comprises heat exchanger tube and is welded in narrow fin and the wide fin on the outer wall of heat exchanger tube, the alternately welding of described narrow fin, wide fin, welds the narrow fin of 3-4 piece between every two wide fins.

The width of described wide fin is 10-100mm, and the 2-3 of the width that the width of wide fin is narrow fin doubly.

Described narrow fin and the thickness of wide fin are equal, and thickness is 3-20mm.

Described narrow fin and wide fin equal in length, length is 500-5000mm.

The utility model, because welded narrow fin and wide fin on heat exchanger tube outer wall, has protected main body heat exchanger tube not to be subject to directly washing away of thermal-flame effectively, has overcome highest temperature district heat exchanger tube and has held flimsy defect, has effectively improved the service life of heat exchanger tube; And wide fin first stands to wash away, because its width contact area is large, thereby improve the exchange velocity of flame and cold air, effectively improve heat exchange efficiency.

Brief description of the drawings

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

In figure: 1-heat exchanger tube, the narrow fin of 2-, the wide fin of 3-.

Detailed description of the invention

By reference to the accompanying drawings, detailed description of the invention of the present utility model is described further:

As shown in Figure 1, a kind of hot-blast stove is high temperature resistant heat exchanger tube, comprises heat exchanger tube 1 and is welded in narrow fin 2 and the wide fin 3 on the outer wall of heat exchanger tube 1, described narrow fin 2, alternately welding of wide fin 3, weld the narrow fin 2 of 3-4 piece between every two wide fins 3.

The width of described wide fin 3 is 10-100mm, the width of wide fin 3 be narrow fin 2 width 2-3 doubly.

Described narrow fin 2 and the thickness of wide fin 3 are equal, and thickness is 3-20mm.

Described narrow fin 2 and wide fin 3 equal in length, length is 500-5000mm.

Claims

1. the high temperature resistant heat exchanger tube of hot-blast stove, it is characterized in that: comprise heat exchanger tube (1) and be welded in narrow fin (2) and the wide fin (3) on the outer wall of heat exchanger tube (1), the alternately welding of described narrow fin (2), wide fin (3), welds the narrow fin of 3-4 piece (2) between every two wide fins (3).

2. the high temperature resistant heat exchanger tube of hot-blast stove according to claim 1, is characterized in that: the width of described wide fin (3) is 10-100mm, the width of wide fin (3) be narrow fin (2) width 2-3 doubly.

3. the high temperature resistant heat exchanger tube of hot-blast stove according to claim 1, is characterized in that: described narrow fin (2) and the thickness of wide fin (3) are equal, and thickness is 3-20mm.

4. the high temperature resistant heat exchanger tube of hot-blast stove according to claim 1, is characterized in that: described narrow fin (2) and wide fin (3) equal in length, length is 500-5000mm.