CN2402913Y

CN2402913Y - High-efficiency vertical smoke and fire tube fuel oil-(or gas-) fired steam boiler

Info

Publication number: CN2402913Y
Application number: CN 99256823
Authority: CN
Inventors: 韩伟; 吴振平
Original assignee: TIANJIN BAOCHENG GROUP CO Ltd
Current assignee: TIANJIN BAOCHENG GROUP CO Ltd
Priority date: 1999-12-17
Filing date: 1999-12-17
Publication date: 2000-10-25
Anticipated expiration: 2009-12-17

Abstract

The utility model relates to a high-efficiency vertical type smoke and fire tube fuel oil (gas) steam boiler, which is composed of a boiler liner, an outer barrel, an upper and a lower pipe plates, a thread smoke pipe, a flow disturbing sheet, and an upper and a lower closed turn smoke chambers, wherein, a boiler barrel is composed of the boiler liner, the outer barrel, and the upper and the lower pipe plates; the thread smoke pipe is vertically inserted into the boiler barrel to connect the upper and the lower pipe plates; water is supplied from the side lower part of a boiler barrel; steam is led out by the pipe plate at the upper part; the inner part of the thread smoke pipe is provided with the flow disturbing sheet; a combustion machine is arranged at the top part of the boiler. The utility model has the advantages that the manufacturing process and the manufacturing equipment are simple, the finished product quality is easily ensured, the production cost is low, the steam has no water, the steam quality is good, the capacity of the boiler barrel is large, the efficiency is high, the efficiency is larger than 88 percents, the energy is saved and the environment is protected.

Description

New and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler

The utility model belongs to fuel oil (gas) steam boiler, particularly a kind of new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler.

What minitype vertical type fuel oil (gas) steam boiler major part adopted at present is that LSS water pipe type and LNS do not have two kinds of casts, and there are some shortcomings in their each self-structures, because of the restriction of the type of furnace can't be avoided.It adopts annular header up and down as the LSS pipe type boiler, is connected to form burner hearth and annular flue by the fin water screen tube, and it is located in the pyrosphere because of water level, water standard is required high; Annular header and fin water screen tube structure manufacture difficulty are big, the process equipment complexity, and the heat transfer intensity of its superelevation has more reduced the service life of pipe, very easily produces booster at the undergauge place; The boiler water capacity is very little, only has low amounts of water in water cooling tube and collection case, and the boiler operatiopn water level is bigger with the load variations fluctuation, the safe operation poor stability; Because the vapor space is little, ordinary water level is low apart from the venthole height, and vapour band water is serious, corresponding need increase complicated water separator in addition.

LNS does not have the cast boiler and adopts the inner/outer tube structure, and inner core forms burner hearth as flue, is welded with fin and exterior wall formation flue on the urceolus and does the use of convection current heat-transfer surface.Though being the urceolus as convection heating surface, its shortcoming is welded with fin, but sweep of gases weak effect, heat exchange efficiency are low, because high-temperature flue gas directly washes away exterior wall, so it is thicker not only to require furnace wall to arrange, and need with the steel plate sealing, complex structure is easy to generate problems such as smoke blowing is overheated; Because furnace wall thickness is big, boiler diameter is corresponding bigger.

The purpose of this utility model provides a kind of new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler, overcomes the shortcoming and defect of prior art.

The purpose of this utility model is achieved in that

A kind of new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler is characterized by: by flue, urceolus, go up lower perforated plate, threaded flue, spoiler, seal the turning smoke-box up and down and form; Flue, urceolus, last lower perforated plate are formed drum; The vertical insertion drum of threaded flue connects goes up lower perforated plate, forms convection heating surface; Boiler feedwater is adopted the inner annular water supply system at the drum side lower part; Steam is drawn by upper tube sheet; Be the first commentaries on classics smoke-box at the bottom of the lower furnace, top is that smoke-box is changeed in sealing; Placed spoiler in the threaded flue, outlet flue is in the boiler bottom; Burner arrangement is at the boiler top.

Be to change smoke-box with the partition wall formation first of concrete cast at the bottom of the lower furnace, top is to become sealing to change smoke-box with welded steel plate;

The utility model has the advantages that:

This type boil characteristic: it is simple that (1) boiler melts structure, manufacturing process and manufacturing equipment, and end product quality guarantees easily, is easy to batch process, reduces production costs; (2) the drum air space is big than other class shape boiler, and it is also higher apart from normal water bit line height that steam is drawn the mouth of pipe, and be furnished with water separator, so the fine disadvantage that solves water entrained by steam has guaranteed good steam quality; (3) employing needs firebrick covering space position in the flue, has guaranteed pyrosphere below political party's water level, has solved the high problem of water standard; (4) the water gage base is directly drawn from drum side and vapor communication pipe, can observe water level truer, more intuitively, by level sensor, reaches automatic control feedwater; (5) the drum internal capacity is big, compares its water capacity of water-tube boiler and can go out 2-3 greatly doubly, has improved boiler operatiopn stability and security; (6) annular waterworks are adopted in boiler feedwater, have strengthened the uniform characteristic of feedwater, have reduced thermal deviation; (7) drum outside wall surface temperature is low, and the insulation of adopting thin light heat insulation material can solve boiler integral body has reduced furnace diameter.(8) automatically controlled aspect adopts present world advanced person's Chinese operating display, realizes fully automatic operation control, and has multiple safeguard protection and warning system.

This innovative design has enlarged the scope of design and the range of application of small steam boiler, its high efficiency, energy savings and to environmental protection.Best heat exchange effect, boiler efficiency is greater than 88%.

Below in conjunction with description of drawings embodiment:

Fig. 1 is new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler structure cutaway view

Fig. 2 is new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler top plan view

Fig. 3 is new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler A-A pseudosection

Newly Yan Zhi LNS pyrotechnics pipe fuel oil (gas) steam boiler adopts vertical three backhaul pyrotechnics duct ligations

Newly Yan Zhi LNS pyrotechnics pipe fuel oil (gas) steam boiler adopts vertical three backhaul pyrotechnics tubular constructions (as accompanying drawing), mainly by flue 1, urceolus 2, upper perforated plate 3, lower perforated plate 4, threaded flue 5, spoiler 6, on seal turning smoke-box 7, seal turning smoke-box 8 down and form.Flue, urceolus, last lower perforated plate are formed drum; The vertical insertion drum of threaded flue connects goes up lower perforated plate, forms convection heating surface; Boiler feedwater 9 is adopted inner annular water supply system 10 at the drum side lower part; Steam is drawn by upper tube sheet; Placed spoiler 6 in the threaded flue 5, the partition wall with the concrete cast at the bottom of the lower furnace forms the first commentaries on classics smoke-box 11, and top becomes sealing to change smoke-box 12 with welded steel plate; Outlet flue is in boiler bottom 13.Burner arrangement is at boiler top 14, and burning produces high-temperature flue gas downwards in flue, through two backhaul threaded flue parallel baffleds, reaches best heat exchange effect, and boiler efficiency is greater than 88%.

Claims

1, a kind of new and effective vertical pyrotechnics pipe fuel oil (gas) steam boiler is characterized by: by flue, urceolus, go up lower perforated plate, threaded flue, spoiler, seal the turning smoke-box up and down and form; Flue, urceolus, last lower perforated plate are formed drum; The vertical insertion drum of threaded flue connects goes up lower perforated plate, forms convection heating surface; Boiler feedwater is adopted the inner annular water supply system at the drum side lower part; Steam is drawn by upper tube sheet; Be the first commentaries on classics smoke-box at the bottom of the lower furnace, top is that smoke-box is changeed in sealing; Placed spoiler in the threaded flue, outlet flue is in the boiler bottom; Burner arrangement is at the boiler top.

2, new and effective vertical pyrotechnics pipe fuel oil according to claim 1 (gas) steam boiler is characterized by: be to change smoke-box with the partition wall formation first of concrete cast at the bottom of the lower furnace, top is to become sealing to change smoke-box with welded steel plate.