CN203878120U - Two-stage gasification furnace burner cover - Google Patents
Two-stage gasification furnace burner cover Download PDFInfo
- Publication number
- CN203878120U CN203878120U CN201420147498.XU CN201420147498U CN203878120U CN 203878120 U CN203878120 U CN 203878120U CN 201420147498 U CN201420147498 U CN 201420147498U CN 203878120 U CN203878120 U CN 203878120U
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- China
- Prior art keywords
- nozzle cover
- arm
- water
- annular
- annular header
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- Expired - Fee Related
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Abstract
The utility model discloses a two-stage gasification furnace burner cover which comprises a burner cover water screen tube component, a burner cover connector and a cooling water outlet and inlet. The two-stage gasification furnace burner cover is characterized in that the burner cover water screen tube component comprises an annular header tank, and 10 branch pipe loops are led out of the annular header tank. The two-stage gasification furnace burner cover is simple in structure and convenient to use, has improved cooling effect and longer service life, and can prevent the cooling pipe from blockage.
Description
Technical field
The utility model relates to a kind of cooling cowl of vapourizing furnace coal dust burner, is important component part in gasifier nozzle system.
Background technology
Burner is one of key part of vapourizing furnace gasification, its Main Function is that fuel and vaporized chemical are imported to vapourizing furnace with certain speed, under the dynamic action of the vaporized chemical of high-velocity jet, there is unburnt chemical reaction after realizing fully the mixing of fuel and vaporized chemical.Because the working temperature in vapourizing furnace is usually above 1400 DEG C, and in pressurization environment under, very high to the requirement of burner; if the cooling deficiency in burner end, thermal stresses is too high, affects vapourizing furnace and normally move when serious; therefore, conventionally can a cooling cowl be set outward at burner.
As the nozzle cover for powder coal gasification furnace coal burner that the patent No. is 201120438873.2, in nozzle cover, be fixed with the ring-like cooling tube of multilayer, the cross sectional arrangements of the ring-like cooling tube of multilayer is inverted trapezoidal.Though the ring-like cooling tube of multilayer can play certain cooling effect, but, because this cooling tube quantity is one, water coolant from be passed into draw flow process very long, it in the time that cooling tube leads to burner end, has been very high temperature, the heat of taking away is limited, cooling performance is poor, easily cause the phenomenon that nozzle cover burns, cause annular space overtemperature in vapourizing furnace stove, in stove, water wall dross is damaged, direct result is that in stove, insulation destroys, water wall is impaired, finally causes production load shedding or system shutdown, and this causes great threat to equipment and normal production.
Summary of the invention
The purpose of this utility model is, provides one to contain many tube loops, greatly reduces the two-section type gasifier nozzle cover of arm loop flow process.
For realizing the purpose of this utility model, intend by the following technical solutions:
Two-section type gasifier nozzle cover, comprise nozzle cover water wall tube assembly, nozzle cover coupling device, cooling water intakeoutfall, nozzle cover water wall tube assembly comprises an annular header, on annular header, draw 10 tube loops, between each tube loop by being equidistantly arranged to a hydraucone, the round steel sealing weld of the gap in hydraucone.Flow process between each tube loop is shorter, and tube loop adopts resistant to elevated temperatures 13CrMo44 material, is more conducive to prevent that nozzle cover is burned.
Annular header is divided into two chambers in left and right, left chamber is connected with cooling water inlet pipe, right chamber is connected with cooling water outlet pipe, in left chamber, be distributed with equally spaced 10 arm water-ins, on right chamber, be distributed with equally spaced 10 arm water return outlets, each tube loop annular arm parallel with annular header of formation from the arm water-in of left chamber is drawn, and then lead on the arm water return outlet on right chamber, annular arm is equidistantly arranged from annular header one side direction annular header, forms a hydraucone shape.
Nozzle cover is arranged on the main water wall of vapourizing furnace, between nozzle cover water wall tube assembly and main water wall, adopts mould material sealing weld, is conical structure, for burner provides 1 passage, prevents that slag from flowing on burner.In fact similar 1 the flaring little waste heat boiler of nozzle cover, passes into feedwater pump circulation in ring pipe, remove near the heat of burner, thereby reduce burner head temperature, protects burner with this.The nozzle cover that the utility model provides is nearer apart from vapourizing furnace center, increase the depth of penetration of nozzle cover, the groove at top can, more effectively by stream slag guiding both sides, can be avoided scorification slag to flow in nozzle cover, thereby reduce the possibility that nozzle cover is burned thus.
Between burner and nozzle cover, adopt mould material and penstock structure, avoid slag to flow into the gap location between burner and nozzle cover.
The coupling device of nozzle cover contains flange, fastening piece, expansion joint etc., is used for fixing nozzle cover and burner.
The utility model replaces a traditional water wall tube by 10 branch road return pipes and a header, greatly reduce branch road return pipe flow process, the feedwater that a tube loop is contained to high calorie is discharged in time, constantly import the feedwater of normal temperature, remove rapidly near the heat of burner, greatly improved the effect of cooling.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is stereographic map of the present utility model.
Fig. 3 is traditional burner cooling cowl structure iron.
Label in figure is, 1, a tube loop; 11, arm water-in; 12, arm water return outlet; 13, annular arm; 2, header; 3, cooling water inlet pipe; 4, cooling water outlet pipe; 5, mould material; 6, coupling device; 7, main water wall.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with drawings and Examples.
As shown in Figure 1 and Figure 2, a kind of two-section type gasifier nozzle cover that the present embodiment proposes, comprise nozzle cover water wall tube assembly, nozzle cover coupling device 6, cooling water intakeoutfall, nozzle cover water wall tube assembly comprises an annular header 2, on annular header 2, draw 10 tube loops 1, a tube loop 1 adopts resistant to elevated temperatures 13CrMo44 material.Between burner and nozzle cover, adopt mould material 5 and penstock structure, to avoid slag to flow into the gap location between burner and nozzle cover.
As shown in Figure 2, annular header 2 is divided into two chambers in left and right, left chamber is connected with cooling water inlet pipe 3, right chamber is connected with cooling water outlet pipe 4, in left chamber, be distributed with equally spaced 10 arm water-ins 11, on right chamber, be distributed with equally spaced 10 arm water return outlets 12, each tube loop 1 annular arm 13 parallel with annular header 2 of formation from the arm water-in 11 of left chamber is drawn, and then lead on the arm water return outlet on right chamber 12, annular arm 13 is equidistantly arranged from annular header 2 one side direction annular headers 2, form a hydraucone shape.
As described in Figure 3, traditional burner cooling cowl, be that a ring-like cooling tube is directly looped around outside burner, ring-like cooling tube flow process is long, can not in time near heat burner be removed, not only easily burn out burner, nozzle cover is easy corrupted also, and the nozzle cover source of damage mainly contains following four aspects: 1 coal burner cooling water fault; 2 peroxide ablations; 3 coal burner cooling jackets and expansion joint damage; When 4 coals change, regulate not in time, slag fluidity changes, slag has covered the partial oxygen/coal channel of burner, force flow direction to change, oxygen and coal can not fully mix, and oxygen even occurs that gap backflows, there is oxygen condition in burner head part or side, does not get rid of the oxidation of burner head localized hyperthermia and overtemperature ablation.
The utility model is arranged on nozzle cover on the main water wall 7 of vapourizing furnace, be conical structure, for burner provides 1 passage, prevent that slag from flowing on burner, nozzle cover is nearer apart from vapourizing furnace center, increase the depth of penetration of nozzle cover, make the groove at top more effectively will flow slag guiding both sides, can avoid thus scorification slag to flow in nozzle cover, thereby reduce the possibility that nozzle cover is burned, and adopt 1 header 2 to join 10 tube loops 1, flow process between each tube loop 1 is shorter, and a tube loop 1 adopts resistant to elevated temperatures 13CrMo44 material, more be conducive to prevent that nozzle cover is burned.
Claims (3)
1. two-section type gasifier nozzle cover, comprises nozzle cover water wall tube assembly, nozzle cover coupling device, cooling water intakeoutfall, it is characterized in that, described nozzle cover water wall tube assembly comprises an annular header, draws 10 tube loops on annular header;
Annular header is divided into two chambers in left and right, and left chamber is connected with cooling water inlet pipe, and right chamber is connected with cooling water outlet pipe;
In left chamber, be distributed with equally spaced 10 arm water-ins, on right chamber, be distributed with equally spaced 10 arm water return outlets;
Each tube loop annular arm parallel with annular header of formation from the arm water-in of left chamber is drawn, and then lead on the arm water return outlet on right chamber, annular arm is equidistantly arranged from annular header one side direction annular header, forms a hydraucone shape.
2. two-section type gasifier nozzle cover according to claim 1, is characterized in that, between described nozzle cover water wall tube assembly and main water wall, adopts mould material sealing weld.
3. two-section type gasifier nozzle cover according to claim 1, is characterized in that, described tube loop adopts resistant to elevated temperatures 13CrMo44 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147498.XU CN203878120U (en) | 2014-03-26 | 2014-03-26 | Two-stage gasification furnace burner cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147498.XU CN203878120U (en) | 2014-03-26 | 2014-03-26 | Two-stage gasification furnace burner cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203878120U true CN203878120U (en) | 2014-10-15 |
Family
ID=51678643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147498.XU Expired - Fee Related CN203878120U (en) | 2014-03-26 | 2014-03-26 | Two-stage gasification furnace burner cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203878120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694983A (en) * | 2014-11-25 | 2016-06-22 | 航天长征化学工程股份有限公司 | Spiral burner cover |
-
2014
- 2014-03-26 CN CN201420147498.XU patent/CN203878120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694983A (en) * | 2014-11-25 | 2016-06-22 | 航天长征化学工程股份有限公司 | Spiral burner cover |
| CN105694983B (en) * | 2014-11-25 | 2018-08-17 | 航天长征化学工程股份有限公司 | Spiral burner cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20190326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |