CN207975651U - A kind of device that can increase burner flame spouting velocity - Google Patents
A kind of device that can increase burner flame spouting velocity Download PDFInfo
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- CN207975651U CN207975651U CN201820183928.1U CN201820183928U CN207975651U CN 207975651 U CN207975651 U CN 207975651U CN 201820183928 U CN201820183928 U CN 201820183928U CN 207975651 U CN207975651 U CN 207975651U
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- burner
- mixing chamber
- front side
- air pipe
- igniter
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Abstract
The utility model discloses a kind of devices that can increase burner flame spouting velocity, belong to annealing furnace burner technical field.The igniter burner both sides are respectively arranged with gaspipe line and air pipe line, it is provided with mixing chamber on front side of the igniter burner, combuster is set on front side of the mixing chamber, and it is provided with burning brick on the outside of combustion chamber, burner block spout does undergauge transformation, spout is reduced to about 95mm by original 140mm, burner exiting flue gas speed is increased to about 120m/s, air pressure is increased to about 3kPa before mouth, to burner and burner block integral replacing, burner block spout flue gas flow rate about 120 ~ 160m/s, mold steel blank heating temperature uniformity improves in stove, it can effectively improve steel billet uniformity of hardness, the uneven quality objection of mould steel hardness reduces 70%.
Description
Technical field
The utility model is related to a kind of devices that can increase burner flame spouting velocity, belong to annealing furnace burner technology neck
Domain.
Background technology
Annealing furnace is car-type structure, the main annealing for executing mold plate slab, tempering heat treatment, furnace temperature deviation about 200
℃.Annealing furnace both sides totally 18 burners（It is 9 unilateral）.Fuel is mixed gas, calorific capacity 2200Kcal/Nm3, maximum heating load
4500Nm3/h.Big and small fire two-way gaspipe line is configured before each burner, air pipe line is all the way, to pass through on-off valve control before burner
Air capacity processed.Coal gas room temperature, 350 DEG C of air preheating temperature.850 DEG C of highest furnace temperature, highest heat treatment process annealing temperature 750
DEG C, it is tempered 550 DEG C.Annealing furnace temperature-control heat couple is arranged in side wall 1/2 and highly locates, and monitoring thermocouple is arranged in furnace roof, totally 15
Thermocouple.
Original design mixed gas manifold pressure 9-11kPa, gas pressure about 1.5kPa before mouth.Combustion fan outlet pressure
7kPa, after heat exchanger and pressure loss in piping, air pressure about 1.5kPa before mouth.
The annealing furnace is less than 15 DEG C, is wanted to temperature uniformity as finished product heat-treatment furnace, the annealing finished product upper and lower surface temperature difference
It asks high, has occurred that many case hardnesses are uneven to lead to quality problems in use.
It is that velocity of flue gas is low to cause the non-uniform main cause of mould steel hardness（20m/s）, turbulent condition is poor in stove, furnace temperature
It is uneven, cause mould steel bottom temp higher.Tackling key problem measure is taken changes velocity of flue gas to pressure adjustment before burner, increases stove
Interior turbulent condition keeps in-furnace temperature subtractive small.But pressure raising can make flame region elongated before mouth, and local temperature is high after burner,
The deficiencies of burner thermic load increases, in practice it has proved that pressure adjustment improves velocity of flue gas and only serves reduction furnace temperature deviation work before burner
With can not thoroughly solve mould steel hardness problem of non-uniform.
Invention content
In view of the above-mentioned problems, the technical problem to be solved by the present invention is to provide a kind of burner flames that can increase to spray speed
The device of degree.
The device that burner flame spouting velocity can be increased of the utility model, it includes igniter burner, gaspipe line, air
Pipeline, mixing chamber, combustion chamber and burning brick, the igniter burner both sides are respectively arranged with gaspipe line and air pipe line, institute
It is provided with mixing chamber on front side of the igniter burner stated, combuster is set on front side of the mixing chamber, and is provided on the outside of combustion chamber
Burn brick.
Preferably, being respectively arranged with gas valve and air door on the gaspipe line and air pipe line.
Preferably, the burning brick bore of the chamber front end is 95mm.
The beneficial effects of the utility model：Its structure is simple, reasonable design, and burner block spout does undergauge transformation, spout
About 95mm is reduced to by original 140mm, burner exiting flue gas speed is increased to about 120m/s, and air pressure is increased to about before mouth
3kPa, to burner and burner block integral replacing, burner block spout flue gas flow rate about 120 ~ 160m/s, mold steel blank heating in stove
Temperature uniformity improves, and can effectively improve steel billet uniformity of hardness, and the uneven quality objection of mould steel hardness reduces 70%.
Description of the drawings
The utility model is described in detail by following specific implementations and attached drawing for ease of explanation,.
Fig. 1 is the structural schematic diagram of the utility model.
Reference numeral：Igniter burner 1, gaspipe line 2, air pipe line 3, mixing chamber 4, combustion chamber 5, burning brick 6.
Specific implementation mode
As shown in Figure 1, present embodiment uses following technical scheme：It includes igniter burner 1, gaspipe line 2, sky
Air pipe 3, mixing chamber 4, combustion chamber 5 and burning brick 6,1 both sides of igniter burner are respectively arranged with gaspipe line 2 and air
Pipeline 3,1 front side of igniter burner are provided with mixing chamber 4, and combuster 5 is arranged in 4 front side of mixing chamber, and burns
5 outside of room is provided with burning brick 6.
It is respectively arranged with gas valve and air door on the gaspipe line 2 and air pipe line 3.
6 bore of burning brick of 5 front end of combustion chamber is 95mm, compares original 140mm nozzle diameters, burner outlet
Velocity of flue gas is increased to about 120m/s, and air pressure is increased to about 3kPa before mouth, to burner and burner block integral replacing, burner block
Spout flue gas flow rate about 120 ~ 160m/s, mold steel blank heating temperature uniformity improves in stove, and it is hard to can effectively improve steel billet
Spend uniformity.
Present embodiment operation principle is：According to heat-treatment furnace production requirement, igniter burner 1 is opened, then open coal
Valve on air pipe 2 and air pipe line 3, air door are first opened 0.5 second than gas valve, 5 internal combustion of mixed gas combustible gas
It burns, generates pressure, flame sprays burner block 6, heats heat-treatment furnace.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (3)
1. a kind of device that can increase burner flame spouting velocity, it is characterised in that：It includes igniter burner（1）, gaspipe line
（2）, air pipe line（3）, mixing chamber（4）, combustion chamber（5）With burning brick（6）, the igniter burner（1）Both sides are respectively set
There is gaspipe line（2）And air pipe line（3）, the igniter burner（1）Front side is provided with mixing chamber（4）, the mixing chamber
（4）Combuster is arranged in front side（5）, and combustion chamber（5）Outside is provided with burning brick（6）.
2. a kind of device that can increase burner flame spouting velocity according to claim 1, it is characterised in that：The coal
Air pipe（2）And air pipe line（3）On be respectively arranged with gas valve and air door.
3. a kind of device that can increase burner flame spouting velocity according to claim 1, it is characterised in that：The combustion
Burn room（5）The burning brick of front end（6）Bore is 95mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820183928.1U CN207975651U (en) | 2018-02-02 | 2018-02-02 | A kind of device that can increase burner flame spouting velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820183928.1U CN207975651U (en) | 2018-02-02 | 2018-02-02 | A kind of device that can increase burner flame spouting velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975651U true CN207975651U (en) | 2018-10-16 |
Family
ID=63766817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820183928.1U Active CN207975651U (en) | 2018-02-02 | 2018-02-02 | A kind of device that can increase burner flame spouting velocity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975651U (en) |
-
2018
- 2018-02-02 CN CN201820183928.1U patent/CN207975651U/en active Active
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