CN2304007Y - Furnace body of oil-fired waste heat boiler - Google Patents

Abstract

The utility model discloses a furnace body of a fuel oil waste heat boiler. It comprises a horizontal cooker shell, a steam valve seat, a safety valve seat, a pressure instrument tube orifice seat, a threaded tube, a front tube plate, a rear tube plate and a flat furnace pipe. The front tube plate of the shell is divided into two areas, the left half area of the shell is welded with a hearth opening of a flat furnace, and the right half area of the shell is welded with a threaded tube. The liner rear end socket of the furnace liner and the right half of the front tube plate are respectively welded and supported with threaded tubes which are directly communicated with the rear tube plate, so that a single-flow shell boiler in the left half and a flue tube-still boiler in the right half are formed. The two furnaces can work independently and simultaneously, and are reasonably and compactly arranged into an exhaust heat exchange area and a combustion heat exchange area, so that the aims of saving energy, optimizing heat transfer effect and purifying air environment are fulfilled.

Description

The furnace body of fuel oil waste heat boiler

The utility model relates to the improvement of Industrial Boiler, especially a kind of furnace body of fuel oil waste heat boiler, and it belongs to the boilers and pressure vessel technical field, the equipment that mainly is applicable to oil drilling and is equipped with.

To discharge a large amount of high-temp waste gas more than 300 ℃ in the diesel engine operate as normal that is equipped with on the oil drilling platform.In glass-ceramic kiln industry, there is a large amount of using residual heat from kiln furnace flue gases to bleed off in vain, these waste gas need effective land productivity to use.A kind of waste heat boiler is arranged, and it is by the drum body of accumbency, smoke pipe group, gas-distributing cylinder, compositions such as afterburning burner hearth.Its afterburning burner hearth is arranged on drum body below, and afterburning flame only contacts the cylindrical shell bottom and do not contact smoke pipe, its afterburning poor effect.It is long that this waste heat boiler starts to time of operate as normal, and its volume is big, and the affiliated facility complexity is difficult to control and makes this waste heat boiler be in stable normal operating conditions.

The purpose of this utility model is that a kind of boiler that makes full use of the waste heat flue gas will be provided.Design a kind of furnace body of fuel oil waste heat boiler, its volume that will overcome above-mentioned boiler is big, and the afterburning burner hearth is provided with unreasonable, afterburning weak effect, the shortcoming that start-up time is long.This furnace body requires to reach simple in structure, and afterburning facility and Boiler smoke tube compact in design are reasonable, make full use of the space, cause good heat transfer environment and heat-transfer effect, make full use of waste heat, environment purification.

Task of the present utility model has following technical scheme to realize, developed a kind of furnace body of fuel oil waste heat boiler, it comprises: horizontal shell body, be located at the steam valve at shell body top, safety valve, the mouth of pipe seat of manometer, be located at the axial thread pipe in the shell, the back tube sheet of all screwed pipes is arranged in supporting, the front tube sheet of this housing is divided into two, wherein the left half-court plate is welded with the stockhole of plain furnace, the courage rear head of this flue and the right half-court plate of front tube sheet support the screwed pipe that is arranged with straight-through back tube sheet respectively, and---screwed pipe of plain furnace---courage rear head---between this end socket and the back tube sheet constitutes the single process smaller hard flour pancake boiler of left half-court like this by the stockhole on the front tube sheet; Be arranged in the flue shell and tube boiler that constitutes the right half-court on the back tube sheet by the supporting of the screwed pipe on the plate of front tube sheet right half-court; Promptly constitute in the courage and pipe in walk combustion product gases and waste heat flue gas, leak water in the shell body that courage is outer and pipe is outer and produce the furnace body of the complex flow boiler of steam.

The furnace body of this fuel oil waste heat boiler, the flue shell and tube boiler of the single process smaller hard flour pancake boiler of described left half-court and right half-court, it can exchange the furnace body of the flue shell and tube boiler that constitutes its single process smaller hard flour pancake boiler that right half-court is arranged and left half-court in half district at place separately.

The furnace body of this fuel oil waste heat boiler, described waste heat flue gas, it can be the fuel oil waste heat flue gas of diesel engine, also can be the waste heat flue gas of glass-ceramic kiln, the heat content temperature of this flue gas is having the value of utilization more than 300 ℃.

Its advantage of furnace body of the present utility model is: owing to designed a left side, two district's heat transfer zone of the smaller hard flour pancake boiler of right half-court and chimney flue type cooking-pot type boiler concentrate in the shell body, make the flue combustion flame and the flue gas thereof of afterburning directly contact screwed pipe---smoke pipe, quickened afterburning start-up time, if be equipped with smoke channel box and guide valve door-plate thereof again, can make behind the flame process courage rear head and the screwed pipe between the back tube sheet of flue internal combustion, flow through again long screwed pipe in the shell body, calory burning is conducted heat fully to outside the pipe, the water that courage is outer, produce as soon as possible that steam is supplied with diesel engine or other uses the vapour facility, its afterburning effect is excellent.Behind the diesel engine unit working stability, the smaller hard flour pancake boiler burn-out, the waste heat flue gas that attracts by air-introduced machine then from front tube sheet by all screwed pipes (smoke pipe) and flue and screwed pipe (smoke pipe) thereof the back tube sheet of flowing through, heat exchange is fully carried out in the way, can reach designing requirement fully.The preferred arrangement of this furnace body can accomplish that two heat transfer zone work independently, and also can work simultaneously, and its connection and reasonable arrangement is simple, and manufacturing process is also simple, dwindles the furnace body volume, makes boiler reach the best state of exerting oneself.This furnace body master uses drilling platforms or kiln production, has saved energy resource consumption, reduces the boiler operatiopn expense, has purified air ambient.

Furnace body embodiment accompanying drawings of the present utility model is as follows:

Fig. 1 is the furnace body structural representation of fuel oil waste heat boiler.

Fig. 2 is the furnace body front tube sheet side diagrammatic sketch of fuel oil waste heat boiler.

The furnace body of fuel oil waste heat boiler of design is that example illustrates it with the boiler of 0.5T/h evaporation capacity.This furnace body comprises: horizontal shell body 1, be located at the steam valve seat 7 at this housing 1 top, and emergency valve seat 8 and manometer mouth of pipe seat 6 are located at the axial thread pipe 2,9 in the shell, and the back tube sheet 10 of all screwed pipes 2,9 is arranged in supporting.The front tube sheet 5 of this furnace body is divided into two districts, and wherein the left half-court plate is welded with the stockhole 11 of plain furnace 3.Support the screwed pipe 9,2 that is arranged with straight-through back tube sheet 10 respectively at the courage rear head 4 of this flue 3 with on the plate of the right half-court of front tube sheet 5.---screwed pipe 9 between this end socket 4 of plain furnace 3---courage rear head 4---and the back tube sheet 10 has constituted the single process smaller hard flour pancake boiler of left half-court like this by the stockhole on the front tube sheet 5 11.Plain furnace 3 sizes of left half-court: φ 500 * 920mm, screwed pipe 9 size φ 32 * 1200, wall thickness 3mm, totally 48, plain furnace 3 furnace heating surfaces in left half-court are long-pending to be 1.45m ², screwed pipe 9 heat convection areas are 14.7m ², combustion flame that oil burner sprays and high-temperature flue gas can be discharged atmosphere in plain furnace 3 thoraxes and after the screwed pipe 9 abundant heat exchange.The single process smaller hard flour pancake boiler of left half-court can produce 300Kg/h steam.Be arranged in the flue shell and tube boiler that constitutes the right half-court on the back tube sheet 10 by 2 supportings of the screwed pipe on the front tube sheet 5 right half-court plates.Promptly constitute in the courage and pipe in walk combustion product gases and waste heat flue gas, leak water in the shell body 1 that courage is outer and pipe is outer and produce the complex flow of steam, the furnace body of boiler.In like manner arrange and to constitute the single process shell boiler with right half-court and the flue shell and tube boiler furnace body of left half-court.Be contained in flue shell and tube boiler smoke porch and connect the high-temperature residual heat flue gas that draws diesel engine, its temperature is drawn and is sent waste heat exhaust gas volumn 54000m in the time of 500 ℃ ³/ h adopts the screwed pipe 2 of φ 45 wall thickness 3mm, length 2200mm, and totally 147 root beads run in and are listed between front tube sheet 5 and the back tube sheet 10, and its heat convection area is 39.6m ²The exchange capability of heat of flue shell and tube boiler is 33.72 * 10 as calculated ⁴Kcal/h, high-temperature residual heat flue gas reduce to 250 ℃ of thermal discharge 33.80Kcal/h from 500 ℃, reach designing requirement fully.The shell body 1 that courage between front tube sheet 5 and the back tube sheet 10 is outer, pipe is outer is interior for using the hydrospace.Design forward and backward tube sheet 5,10 sizes: φ 1400mm, shell body size: φ 1400 * 2200mm, then the full water capacity is: 2500.0kg produces the quantity of steam of 0.50 ton/h.

Claims (2)

1, a kind of furnace body of fuel oil waste heat boiler, it comprises: horizontal shell body, be located at the steam valve at shell body top, safety valve, the mouth of pipe seat of manometer, be located at the axial thread pipe in the shell, the back tube sheet of all screwed pipes is arranged in supporting, it is characterized in that: the front tube sheet of this housing is divided into two, wherein the left half-court plate is welded with the stockhole of plain furnace, the courage rear head of this flue and the right half-court plate of front tube sheet support the screwed pipe that is arranged with straight-through back tube sheet respectively, and---screwed pipe of plain furnace---courage rear head---between this end socket and the back tube sheet constitutes the single process smaller hard flour pancake boiler of left half-court like this by the stockhole on the front tube sheet; Be arranged in the flue shell and tube boiler that constitutes the right half-court on the back tube sheet by the supporting of the screwed pipe on the plate of front tube sheet right half-court; Promptly constitute in the courage and pipe in walk combustion product gases and waste heat flue gas, leak water in the shell body that courage is outer and pipe is outer and produce the furnace body of the complex flow boiler of steam.

2, according to the furnace body of the described fuel oil waste heat boiler of claim 1, it is characterized in that: the flue shell and tube boiler of the single process smaller hard flour pancake boiler of described left half-court and right half-court, it can exchange the furnace body of the flue shell and tube boiler that constitutes single process smaller hard flour pancake boiler with right half-court and left half-court in half district at place separately.

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