CN2370295Y

CN2370295Y - Boiler smoke tube

Info

Publication number: CN2370295Y
Application number: CN 99233224
Authority: CN
Inventors: 阎国俊
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-27
Filing date: 1999-04-27
Publication date: 2000-03-22
Anticipated expiration: 2009-04-27

Abstract

The utility model relates to a boiler smoke pipe which comprises a round smoke pipe (1), wherein, the surface of the periphery of the round smoke pipe is provided with an annular rib piece (2), and three to five groups of sectional helical pieces (3) are arranged in the round smoke pipe (1). The helical pieces of the round smoke pipe are fixed into a whole through a connecting rod (4) and can be inserted into or drawn from the round smoke pipe. The length of the boiler smoke pipe can be shortened for reducing the size of the shape of a boiler for eliminating smoke dirt easily. The utility model can be used in horizontal low pressure steam boilers with fast assembled water and fire pipes, vertical low pressure steam boilers with water and fire pipe, horizontal low pressure and normal pressure water heating boilers with internal combustion fire pipes, and vertical low pressure and normal pressure water heating boilers with internal combustion fire pipes and has better using effect.

Description

Boiler smoke tube

The utility model belongs to uses smoke pipe in the miniature boiler.

Smoke pipe tradition in the small-sized shell boiler adopts straight collimator, and after flue gas entered the direct light smoke pipe, entrance was eddy current, was turbulent flow afterwards.In the flowing heat transfer process, the cigarette temperature descends, and flow velocity slows down, and heat transfer slows down.The compacting helix tube appears adopting in the mid-80 in the boiler manufacturing, be shallow ridges shape helicla flute in this pipe, though can strengthen heat-transfer effect, in case filled and led up by crock, just loses its effect, and it is difficult to remove crock.

The purpose of this utility model is for the Boiler smoke tube after a kind of improve is provided.It can make the heat-transfer effect of smoke pipe increase greatly.

The purpose of this utility model is achieved like this: it comprises round smoke pipe, and the circle smoke pipe peripheral surface the ring-type fin is installed, in be equipped with 3-5 set of segmentation flight, its flight is for connecting rod is fixedly connected into integral body, makes it insert or to extract out in the circle smoke pipe.

Owing to adopted above technical solution, make flue gas become eddy flow, increased flue gas flow, progressively to reduce the flue gas cross-sectional flow area, guarantee that flue gas flow rate is constant, heat transfer coefficient is constant, the acquisition heat-transfer effect is splendid, and the smoke pipe length than existing boiler shortens, and boiler appearance and size is dwindled, and can be easy to remove crock.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is shape and structure schematic diagram of the present utility model;

Fig. 2 is the utility model and the schematic diagram that is used for horizontal feeded water rapidly fire tube low pressure steam boiler;

Fig. 3 is the utility model and the schematic diagram that is used for vertical extreme misery pipe low pressure steam boiler;

Fig. 4 is the utility model and the schematic diagram that is used for combustion tube hot-water boiler in horizontal low pressure and the normal pressure.

Below in conjunction with accompanying drawing the utility model is described in detail.

This smoke pipe comprises a round smoke pipe (1), and circle smoke pipe peripheral surface is installed ring-type fin (2), and 3-5 set of segmentation flight (3) is installed in the circle smoke pipe (1).

As shown in Figure 1, annular fin (2) is evenly to distribute to be fixedly mounted on round smoke pipe (1) peripheral surface; Flight (3) is spring-like, is evenly to distribute to be fixed in connecting rod (4) and to be installed in the round smoke pipe (1).

Shown in Fig. 2,3,4, this Boiler smoke tube, it can be used for the interior combustion tube hot-water boiler of combustion tube hot-water boiler, vertical low pressure and normal pressure in horizontal feeded water rapidly fire tube low-pressure steam boiler, vertical extreme misery pipe low pressure steam boiler, horizontal low pressure and the normal pressure, and result of use is splendid.

Claims

1, Boiler smoke tube, comprise round smoke pipe (1), it is characterized in that the circle smoke pipe (1) peripheral surface ring-type fin (2) is installed, in be equipped with 3-5 set of segmentation flight (3), its flight (3) is to be fixedly connected into integral body by connecting rod (4), can insert in circle smoke pipe (1) or extract out.

2,, it is characterized in that ring-type fin (2) is evenly to distribute to be fixedly mounted on round smoke pipe (1) peripheral surface according to the described Boiler smoke tube of claim 1.

3, according to the described Boiler smoke tube of claim 1, it is characterized in that flight (3) is spring-like, be evenly to issue to be fixed in connecting rod (4) and to be installed in the round smoke pipe (1).