CN2390171Y

CN2390171Y - Inner-filled outer-finned alloy liner

Info

Publication number: CN2390171Y
Application number: CN 99225253
Authority: CN
Inventors: 王来祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-12
Filing date: 1999-10-12
Publication date: 2000-08-02
Anticipated expiration: 2009-10-12

Abstract

The utility model relates to an inner-filled outer-fin-plate alloy liner, which is used for the corrosion resistance of a boiler embedding pipe or a water cooling wall pipe of a boiling furnace, a circulating fluidized bed, etc. The inner-filled outer-fin-plate alloy liner is formed by that the inner layer of a liner body (1) is provided with a heat transferring densely connecting object (2), the outer surface of the liner body (1) is provided with longitudinal or transverse or slantwise or pattern or concave and convex fin plates (3), one end of the liner body (1) is provided with a stop opening (4) and the two ends of the liner body (1) are welded with hanging rings (5). Compared with a traditional boiler in a fin-plate type, the corrosion resistance of the inner-filled outer-fin-plate alloy liner of the utility model is increased by 8 to 10 times and heat transferring performance is increased by 5% to 10%.

Description

Fill the outer-finned alloy liner in a kind of

The utility model relates to the used a kind of interior outer-finned alloy liner of filling of type boiler pipe layings such as being suitable for fluidized bed furnace, recirculating fluidized bed or water screen tube abrasionproof.

At present, main heating surface one pipe laying of type boiler such as the fluidized bed furnace of homemade or import, recirculating fluidized bed or the abrasionproof and the heat transfer property of water screen tube are finished by " fin ".Be that pipe laying is directly to weld 3～5 band steels at the pipe heating surface, link to each other (general designation " fin ") with flat board between the water screen tube, to improve abrasionproof, the raising heat transfer property.But, fluidized bed furnace, the boiler abrasion of types such as recirculating fluidized bed is an especially severe.The boiler pipe laying that newly dispatches from the factory can grind leakage in 8～9 months, and water screen tube also can only be with 5～6 months.Therefore I invented a kind of iron-aluminium porcelain alloy liner in 1996, prove through more than 40 tame users' use, though improved 8～10 times of life-spans, not ideal enough on the heat transfer property.

In order to overcome the deficiency that exists in the prior art, the purpose of this utility model is that will design a kind of is that abrasionproof is durable, has the novel interior outer-finned alloy liner of filling of good heat transfer capacity again, to satisfy user's needs.

For achieving the above object, the design of filling the outer-finned alloy liner in of the present utility model is, in watt body, set up one deck close knot thing that conducts heat, and be provided with the fin of vertical or horizontal or oblique or decorative pattern or shape such as concavo-convex at the outer surface of watt body, heat transfer area so that increase is protected watt improves heat transfer property; In order to prevent to protect watt in the wearing and tearing between the slit after the installation, be provided with seam at an end of watt body; In order to prevent to protect watt in use, the back two ends perk of being heated is welded with suspension ring at the two ends of watt body.

A kind of interior outer-finned alloy liner of filling of the present utility model is compared with existing iron-aluminium porcelain alloy liner, on the basis that guarantees the abrasionproof performance, heat transfer property has obtained improving greatly, and its heat transfer property is compared with traditional " fin " formula boiler and improved 5～10%.From following experiment, can prove:

Experimental condition: Φ 51 * 800 seamless pipes, closed at both ends, above perforate, laying temperature meter in the hole is filled with water 2 glasss in the pipe, 21 ℃ of room temperatures, heating on the fire of the liquefied gas under same state dish, its result such as following table:

Simulated test correction data table

Conclusion: the unfilled tile that protects should not use, conduct heat bad (20 minutes), interior filling outer-finned alloy liner pipe best (9.5 minutes).Than traditional pipe outer-finned fast 0.5 minute, improve heat transfer property 5%.

Accompanying drawing is for filling the structural representation of outer-finned alloy liner in a kind of.

For a kind of interior structure of filling the outer-finned alloy liner of the present utility model is had further understanding, details are as follows in conjunction with embodiment of the present utility model:

Embodiment, a kind of interior outer-finned alloy liner of filling

With reference to accompanying drawing, a kind of interior filling outer-finned alloy liner of the present utility model is watt body [1] by iron-aluminium porcelain alloy semi-circular among the figure, the one deck that scribbles in watt body [1] close knot thing [2] that conducts heat, watt vertical fin [3] that body [1] outer surface is provided with, with the seam [4] that watt body [1] one end is provided with, reach the suspension ring [5] that welding at watt body [1] two ends and form.Wherein fin [3], seam [4] are and a watt body [1] casting all-in-one-piece.Suspension ring [5] weld with a watt body [1] after a watt body [1] is enclosed within pipe laying or water screen tube again.

Install:

When interior filling outer-finned alloy liner and the assembling of protected boiler tube; earlier the inner surface of watt body [1] is coated the close structure of a little thick heat transfer [2]; then watt body [1] is buckled in lapping-in on the boiler tubing; fill and lead up the uneven of a watt body [1] inner surface and boiler tube surface, thus guarantee to protect watt with boiler tube between contact for hundred-percent.Both sides and boiler tube spot welding in the middle of watt body [1], watt body [1] two ends and suspension ring [5] are included in boiler tube in a watt body [1] and the suspension ring [5] after welding.

Claims

1, a kind of interior outer-finned alloy liner of filling, it includes a watt body [1], it is characterized in that it also includes the close knot thing of heat transfer [2] that is located at a watt body [1] internal layer, the fin [3] of watt vertical or horizontal or oblique or decorative pattern that body [1] outer surface is provided with or shape such as concavo-convex, with the seam [4] that watt body [1] one end is provided with, reach the suspension ring [5] that welding at watt body [1] two ends and form.