CN207243951U - Annealing furnace - Google Patents
Annealing furnace Download PDFInfo
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- CN207243951U CN207243951U CN201721167773.4U CN201721167773U CN207243951U CN 207243951 U CN207243951 U CN 207243951U CN 201721167773 U CN201721167773 U CN 201721167773U CN 207243951 U CN207243951 U CN 207243951U
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- straight pipe
- section
- bearing
- groove
- annealing furnace
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model, which discloses, is related to strip field of smelting, especially a kind of annealing furnace, it includes furnace shell, radiant tube, radiant tube includes the first straight pipe, the first elbow section, the second straight pipe, the second elbow section, the 3rd straight pipe, triple section arm section, the 4th straight pipe for being sequentially connected setting, the first connecting hole, the second connecting hole are provided with furnace shell, the end set of first elbow section has the first bearing, the end set of second elbow section has the second bearing, the end set of triple section arm section has three abutments, and the first groove, the second groove are provided with furnace shell；The matching of second bearing is arranged in the first groove, and second bearing can horizontally slip in the first groove, three abutments matching is arranged in the second groove, and three abutments can horizontally slip in the second groove, and the first bearing is connected by link mechanism with three abutments.The utility model provides a kind of annealing furnace simple in structure, service life is longer.
Description
Technical field
Strip field of smelting is the utility model is related to, especially a kind of annealing furnace.
Background technology
In continuous annealing and galvanizing unit, annealing furnace is provided with bringing-up section and soaking zone, the part be mainly used for strip into
Row heating, mode of heating are the tables that its heat passes through radiant tube surface emissivity to strip by burner combustion inside radiant tube
Face, so as to fulfill the heating anneal function of strip.Radiant tube is the key equipment of vertical continuous annealing furnace heat temperature raising, radiant tube
Tube body is welded using heat resisting steel, at present annealing furnace using it is relatively broad be W type radiant tubes, by welding with
The furnace wall of annealing furnace is connected, and radiant tube is high temperature when in use, and during compressor emergency shutdown maintenance, radiant tube cools to room temperature shape again
State, under the change of huge temperature, displacement that the straight tube and elbow of radiant tube will occur in space, due to the constraint of bearing
Different with each deflection, causing bearing, either straight tube drawing crack causes radiant tube damage or bearing by the elbow of radiant tube
Damage, seriously affects the service life of radiant tube, reduces the usage time and stability in use of annealing furnace.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of annealing furnace simple in structure, service life is longer.
The utility model solves annealing furnace used by its technical problem, including furnace shell, radiant tube, and radiant tube is included successively
Connect set the first straight pipe, the first elbow section, the second straight pipe, the second elbow section, the 3rd straight pipe, triple section arm section,
4th straight pipe, is provided with the first connecting hole, the second connecting hole on furnace shell, and the matching of the first straight pipe is through the first connecting hole, and the
The matching of four straight pipes is the first elbow section, the second straight pipe, the second elbow section, the 3rd straight pipe, the 3rd curved through the second connecting hole
Head section is located at the inside of furnace shell, and the end set of the first elbow section has the first bearing, and the end set of the second elbow section has second
Bearing, the end set of triple section arm section have three abutments, the first groove, the second groove are provided with furnace shell；
The matching of second bearing is arranged in the first groove, and the second bearing can horizontally slip in the first groove, and the 3rd
Bearing matching is arranged in the second groove, and three abutments can horizontally slip in the second groove；
There are gap, the first bearing between first bearing and furnace shell to be connected by link mechanism with three abutments.
It is further that link mechanism includes connecting rod and the connecting rod head being connected with connecting rod, is provided with the first bearing perpendicular
Vertical bar shaped hole, connecting rod head match connection with vertical bar hole.
It is further that connecting rod head includes bar portion and the head being connected with bar portion, bar portion are arranged on vertical bar hole
In, head is arranged on the outside of vertical bar hole, and there are gap between bar portion and the transverse direction of vertical bar hole.
It is further that there are gap between the transverse direction of bar portion and vertical bar hole to be more than 15mm.
It is further that the second connector sleeve is provided with the second groove, three abutments matching is arranged in the second connector sleeve.
It is further that the first connector sleeve is provided with the first groove, the matching of the second bearing is arranged in the first connector sleeve.
It is further that hemisphere scapus is provided with the first connector sleeve, the bottom of the second bearing is arranged on hemisphere scapus.
It is further that suit is provided with the first expansion joint on the first straight pipe, and the first expansion joint is by welding
It is connected with the first straight pipe, furnace shell；Suit is provided with the second expansion joint on 4th straight pipe, and the second expansion joint passes through welding
Mode is connected with the 4th straight pipe, furnace shell.
It is further that the first expansion joint, the second expansion joint are multi-layer expansion joint.
It is further that the first straight pipe, the first elbow section, the material of the second straight pipe are 28Cr48Ni, the second elbow
Section, the 3rd straight pipe, triple section arm section, the material of the 4th straight pipe are 25Cr35Ni.
The beneficial effects of the utility model are：There is the first bearing in the end set of the first elbow section of radiant tube, second
The end set of elbow section has the second bearing, and the end set of triple section arm section has three abutments, and the first bearing passes through connecting rod knot
Structure is connected with three abutments, and the matching of the second bearing is arranged in the first groove, and the second bearing can be left in the first groove
Right slip, three abutments matching is arranged in the second groove, and three abutments can horizontally slip in the second groove, work as radiation
Pipe is logical since when self gravitation produces displacement with the stress that expands with heat and contract with cold, the first bearing can be moved around linkage, the second bearing
It can be slided in the first groove, three abutments matching, which is arranged in the second groove, to be slided, and is significantly reduced to radiant tube and company
Bearing damage is connect, so as to improve the service life and stability in use of annealing furnace.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Parts, position and numbering in figure：Furnace shell 1, radiant tube 2, the first straight pipe 21, the first elbow section 22, second are straight
Pipeline section 23, the second elbow section 24, the 3rd straight pipe 25, triple section arm section 26, the 4th straight pipe 27, the first bearing 3, vertical bar shaped
Hole 31, the second bearing 4, three abutments 5, connecting rod 6, connecting rod head 7, the first connector sleeve 8, the second connector sleeve 9, the first expansion joint 10,
Second expansion joint 11, hemisphere scapus 12.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the utility model annealing furnace, including furnace shell 1, radiant tube 2, radiant tube 2 include being sequentially connected
The first straight pipe 21, the first elbow section 22, the second straight pipe 23, the second elbow section 24, the 3rd straight pipe the 25, the 3rd set is curved
Head section 26, the 4th straight pipe 27, that is to say common W types radiant tube, the first straight pipe 21, the first elbow section 22, the second straight tube
By welding together, first is straight for the 23, second elbow section 24 of section, the 3rd straight pipe 25, triple section arm section 26, the 4th straight pipe 27
Pipeline section 21 is connected with burner, and the first connecting hole, the second connecting hole are provided with furnace shell 1, and the first straight pipe 21 is matched through
One connecting hole, the 4th straight pipe 27 are matched through the second connecting hole, the first elbow section 22, the second straight pipe 23, the second elbow section
24th, the 3rd straight pipe 25, triple section arm section 26 are located at the inside of furnace shell 1, and the first elbow section 22, the second elbow section the 24, the 3rd are curved
There are a certain distance, the end set of the first elbow section 22 between furnace shell 1 the first bearing 3, the second elbow for head section 26
The end set of section 24 has the second bearing 4, and the end set of triple section arm section 26 has three abutments 5, first is provided with furnace shell 1
Groove, the second groove；The matching of second bearing 4 is arranged in the first groove, and the second bearing 4 can be slided left and right in the first groove
Dynamic, the matching of three abutments 5 is arranged in the second groove, and three abutments 5 can horizontally slip in the second groove；First bearing
There are gap, the first bearing 3 between 3 and furnace shell 1 to be connected by link mechanism with three abutments 5.
Again as shown in Figure 1, on the basis of the structural orientation shown in Fig. 1, hot gas passes in and out radiation along the arrow shown in Fig. 1
Pipe 2, the first elbow section 22 can expand with heat and contract with cold act under stress under be moved to the left certain distance, the second elbow section 24 can heat expansion
Move right certain distance under shrinkage stress, and triple section arm section 26, which can expand with heat and contract with cold, is moved to the left a spacing under stress
From the first bearing 3 is moved to the left corresponding distance around linkage, and the second bearing 4 slides to the right correspondingly in the first groove
Distance, three abutments 5 slide distance correspondingly to the left in the second groove, that is to say and inhale the stress that expands with heat and contract with cold of generation
Receipts balance out, and significantly reduce and 2 and first bearing 3 of radiant tube, the second bearing 4, three abutments 5 are damaged, so as to improve annealing
The service life and stability in use of stove.
Specifically, again as shown in Figure 1 and Figure 2, the structure of link mechanism is the connecting rod for including connecting rod 6 and being connected with connecting rod
First 7, vertical bar hole 31 is provided with the first bearing 3, and connecting rod head 7 matches connection with vertical bar hole 31.First bearing 3 passes through
Link mechanism is connected with three abutments 5, is so provided with the connection that can reduce furnace shell 1, reduces and is set more on furnace shell 1
Groove, ensures the intensity of furnace shell 1, and certain distance is moved to the left under stress since the first elbow section 22 can expand with heat and contract with cold,
It is possible to move up and down, so, 7 structure of connecting rod head of the utility model preferably comprises bar portion and the head being connected with bar portion
Portion, bar portion are arranged in vertical bar hole 31, and head is arranged on the outside of vertical bar hole 31, bar portion and vertical bar hole 31
There are gap between transverse direction so that the first elbow section 22 by the first bearing 3 in vertical bar hole 31 activity and swing, reach
Absorb the stress that expands with heat and contract with cold for reducing and producing.By largely putting into practice and testing proof, bar portion and the transverse direction of vertical bar hole 31
Between there are gap should be greater than 15mm, preferably between 15-25mm.
Since the second bearing 4 can be in the second groove and three abutments 5 can slide in the 3rd groove, in order to reduce by the
Damage of two bearings 4 to the 3rd groove of the second groove and three abutments 5, is provided with the second connector sleeve 9 in the second groove,
The matching of three abutments 5 is arranged in the second connector sleeve 9, and the first connector sleeve 8 is provided with the first groove, and the matching of the second bearing 4 is set
Put in the first connector sleeve 8, the first connector sleeve 8, the second connector sleeve 9 are made of abrasion-resistant stee, and the matching of the second bearing 4 is arranged on first
In connector sleeve 8, the matching of three abutments 5 is arranged in the second connector sleeve.Again as shown in Figure 1, the second straight pipe 23 is straight positioned at first
Between 21 and the 3rd straight pipe 26 of pipeline section, generally both middles, the gravity of both itself mutually influence, and second
23 self gravitation of straight pipe is smaller to damaging, the stress so the second straight pipe 23, the second elbow section 24 are mainly expanded with heat and contract with cold
Infringement, moves left and right for the ease of the second straight pipe 23, the second elbow section 24 under the drive of the second bearing 4, in the first connector sleeve 8
On be provided with hemisphere scapus 12, the bottom of the second bearing 4 is arranged on hemisphere scapus 12.
Matched since the first straight pipe 21 is matched through the first connecting hole, the 4th straight pipe 27 through the second connecting hole,
It is that the first straight pipe 21 can also horizontally slip in the first connecting hole, the 4th straight pipe 27 is slided in the second connecting hole, in order to drop
Low infringement between the two, improves usage time, and the utility model is set with the first straight pipe 21 and is provided with the first expansion joint
10, the first expansion joint 10 is connected with the first straight pipe 21, furnace shell 1 by welding；Installing is covered on 4th straight pipe 27
The second expansion joint 11 is equipped with, the second expansion joint 11 is connected with the 4th straight pipe 27, furnace shell 1 by welding, and first is swollen
The 10, second expansion joint 11 of swollen section is made of wear-resisting high temperature plate, preferably multi-layer expansion joint, such as three layers of expansion joint.
The thermal coefficient of expansion of the material of radiant tube 2 is also an important factor for it ensures its usage time, at present radiant tube 2
Usage time is generally 3 years, and the thermal coefficient of expansion of its material is relatively low, since the thermal coefficient of expansion of 28Cr48Ni is higher, as spoke
The material for penetrating pipe 2 uses, and the usage time of radiant tube 2 significantly improves the usage time of radiant tube 2 at least more than 5 years.But
The higher price of 28Cr48Ni, it is higher that all cost is made using 28Cr48Ni in radiant tube 2, due to by the first straight pipe 21,
First elbow section 22, the second straight pipe 23, the second elbow section 24, the 3rd straight pipe 25, triple section arm section 26, the 4th straight pipe 27
Flue-gas temperature gradually reduce, the second elbow section 24, the 3rd straight pipe 25, triple section arm section 26, the 4th straight pipe 27 may be selected
Thermal coefficient of expansion is relatively lower, lower-cost material is made, by being drawn in a large number of experiments and practice, the first straight pipe
21st, the first elbow section 22, the material of the second straight pipe 23 are preferably 28Cr48Ni, the second elbow section 24, the 3rd straight pipe 25,
Triple section arm section 26, the material of the 4th straight pipe 27 are 25Cr35Ni.
Claims (10)
1. annealing furnace, including furnace shell (1), radiant tube (2), radiant tube (2) include being sequentially connected the first straight pipe (21) of setting,
First elbow section (22), the second straight pipe (23), the second elbow section (24), the 3rd straight pipe (25), triple section arm section (26),
Four straight pipes (27), are provided with the first connecting hole, the second connecting hole on furnace shell (1), and the first straight pipe (21) matching is through first
Connecting hole, the matching of the 4th straight pipe (27) are the first elbow section (22), the second straight pipe (23), second curved through the second connecting hole
Head section (24), the 3rd straight pipe (25), triple section arm section (26) are located at the inside of furnace shell (1), it is characterised in that：First elbow section
(22) end set has the first bearing (3), and the end set of the second elbow section (24) has the second bearing (4), triple section arm section
(26) end set has three abutments (5), and the first groove, the second groove are provided with furnace shell (1)；
Second bearing (4) matching is arranged in the first groove, and the second bearing (4) can horizontally slip in the first groove, the
Three abutments (5) matching is arranged in the second groove, and three abutments (5) can horizontally slip in the second groove；
There are gap, the first bearing (3) between first bearing (3) and furnace shell (1) to be connected by link mechanism with three abutments (5)
Connect.
2. annealing furnace as claimed in claim 1, it is characterised in that：Link mechanism includes connecting rod (6) and is connected with connecting rod
Connecting rod head (7), is provided with vertical bar hole (31), connecting rod head (7) and vertical bar hole (31) company of matching in the first bearing (3)
Connect.
3. annealing furnace as claimed in claim 2, it is characterised in that：Connecting rod head (7) includes bar portion and is connected with bar portion
Head, bar portion are arranged in vertical bar hole (31), and head is arranged on the outside of vertical bar hole (31), bar portion and vertical bar shaped
There are gap between the transverse direction in hole (31).
4. annealing furnace as claimed in claim 3, it is characterised in that：Between existing between bar portion and the transverse direction of vertical bar hole (31)
Gap is more than 15mm.
5. annealing furnace as claimed in claim 1, it is characterised in that：It is provided with the second connector sleeve (9) in second groove, the 3rd
Seat (5) matching is arranged in the second connector sleeve (9).
6. annealing furnace as claimed in claim 1, it is characterised in that：It is provided with the first connector sleeve (8) in first groove, second
Seat (4) matching is arranged in the first connector sleeve (8).
7. annealing furnace as claimed in claim 6, it is characterised in that：Hemisphere scapus (12) is provided with first connector sleeve (8), the
The bottom of two bearings (4) is arranged on hemisphere scapus (12).
8. annealing furnace as claimed in claim 1, it is characterised in that：Suit is provided with the first expansion joint on first straight pipe (21)
(10), the first expansion joint (10) is connected with the first straight pipe (21), furnace shell (1) by welding；4th straight pipe
(27) suit is provided with the second expansion joint (11) on, the second expansion joint (11) by welding with the 4th straight pipe (27),
Furnace shell (1) is connected.
9. annealing furnace as claimed in claim 8, it is characterised in that：First expansion joint (10), the second expansion joint (11) are multilayer
Expansion joint.
10. the annealing furnace as described in claim 1 to 9 any one, it is characterised in that：First straight pipe (21), the first elbow
Section (22), the material of the second straight pipe (23) are 28Cr48Ni, the second elbow section (24), the 3rd straight pipe (25), triple section arm
Section (26), the material of the 4th straight pipe (27) are 25Cr35Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167773.4U CN207243951U (en) | 2017-09-12 | 2017-09-12 | Annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167773.4U CN207243951U (en) | 2017-09-12 | 2017-09-12 | Annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207243951U true CN207243951U (en) | 2018-04-17 |
Family
ID=61888172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721167773.4U Expired - Fee Related CN207243951U (en) | 2017-09-12 | 2017-09-12 | Annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207243951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526742A1 (en) * | 2022-12-07 | 2024-06-15 | Andritz Ag Maschf | HOLDING DEVICE FOR ELECTRICALLY HEATED RADIATOR TUBES |
-
2017
- 2017-09-12 CN CN201721167773.4U patent/CN207243951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT526742A1 (en) * | 2022-12-07 | 2024-06-15 | Andritz Ag Maschf | HOLDING DEVICE FOR ELECTRICALLY HEATED RADIATOR TUBES |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20200912 |