CN108489273A - A kind of heating furnace with pull rod - Google Patents
A kind of heating furnace with pull rod Download PDFInfo
- Publication number
- CN108489273A CN108489273A CN201810292239.9A CN201810292239A CN108489273A CN 108489273 A CN108489273 A CN 108489273A CN 201810292239 A CN201810292239 A CN 201810292239A CN 108489273 A CN108489273 A CN 108489273A
- Authority
- CN
- China
- Prior art keywords
- pull rod
- fixed
- column
- furnace wall
- heating furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 32
- 238000009434 installation Methods 0.000 abstract description 13
- 238000009413 insulation Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000011900 installation process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000011162 core material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002937 thermal insulation foam Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A kind of heating furnace with pull rod of the present invention, it include the furnace wall for being used to surround chamber positioned at side, furnace wall includes column and furnace wall plate, furnace wall plate is fixed on column, it is provided with pull rod and fixed structure between opposite column, pull rod is fixed on column and is not passed through furnace wall plate, and column is fixed in the both ends of pull rod by fixed structure.Compared with prior art, the present invention is passed through in furnace wall plate trepanning for pull rod due to being not necessarily to, and fixed structure is fixed on column, therefore the structure will not reduce the intensity of furnace wall, plays the role of improving furnace wall integral strength.Since pull rod is arranged on the inside of furnace wall and is not passed through furnace wall plate, after installation is complete in integral device, without removing pull rod, the process that block trepanning in the past is eliminated.Internal heat insulation structural can be just carried out before the mounting, avoid working at height from carrying out installation heat insulation structural, therefore whole installation process is more convenient.
Description
Technical field
The present invention relates to the heating furnace technical fields in petroleum refining, petrochemical industry and other chemical industry, and in particular to a kind of
Heating furnace with pull rod.
Background technology
The structure design and function of traditional heating stove：
Heating furnace is the tap in petrochemical industry, including atmospheric pressure kiln, vacuum furnace, SECTION TUBE FOR HYDROGEN MANNU-FACTURING FURNACE, reformer, coking furnace, conversion
Stove and pyrolysis furnace etc..The effect of tubular heater is that medium (oil plant or gas) is heated to the temperature needed for technique.
Heating furnace is generally assembled by convection section and two big primary structure of radiant section up and down, and convection section is provided with opposite
Two sides furnace wall, furnace wall include the column of the shaped steel such as I-steel, H profile steel, and the steel being weldingly fixed on column furnace wall plate, steel
Distribution welding bar for line, is molded into heat-insulated and wear-resistant material between bar for line on plate.The holder installed on furnace wall is for supporting
Tube sheet, tube sheet are provided with through-hole, and boiler tube is supported across the through-hole, and what is flowed through in boiler tube is the oil plant for needing to heat, stove
What tube outside was flowed through from the bottom up in burner hearth is high-temperature flue gas or hot wind, and heat is transmitted to oil plant in pipe or other by tube wall
Medium.
Furnace wall mentioned above includes furnace wall plate and column, and locally stacking is fixed for side and the column of furnace wall plate, and column is each
The steel construction for the interconnection that kind shaped steel is formed, is the frame of stress, furnace wall plate is fixedly welded on column.It is set on the inside of the plate of furnace wall
It is equipped with very thick lining and thermal insulation layer (forms such as castable, heat insulation foam).Two groups of columns are positioned opposite when installation, in order to avoid stove
Wall is being transported and is being deformed in installation process, needs that pull rod is arranged in furnace wall to play the role of fixed support.Existing pull rod knot
Structure is as depicted in figs. 1 and 2, and Fig. 2 is to be fixed with the state of pull rod in transport installation process.The furnace wall plate 40 of offside is worn inwardly
There are hollow pipe 20, hollow pipe 20 to run through lining and thermal insulation layer, column 10 is fixed with the profile iron 30 of H-type, the side of deformed steel 30
Plate and furnace wall plate 40 are fixed, and the both ends of pull rod 70 are provided with external screw thread, and long two or three meter of pull rod passes through profile iron 30 and hollow
After pipe 20, each end of pull rod 70 is fixed on another side plate of deformed steel 30, such structure by two groups of nuts (gasket)
Furnace wall can either be tensed outwardly, can also be applied coupling mechanism force inwardly to furnace wall, be reached the fixed effect of balance.
After equipment installs, before heating furnace enters working condition, the nut for unscrewing pull rod both ends is needed,
Pull rod 70 is released, the full core material 60 of filling in hollow pipe 20, then the both ends open of hollow pipe 20 is blocked with plug 50, and
A series of provision for thermal insulation prevents internal heat from being overflowed from this channel, forms structure as shown in Figure 3.
However above structure has the following problems：Due to having opened hole for wearing hollow pipe 20 and pull rod in furnace wall plate
70, so weakening the intensity of furnace wall plate.It needs to remove before to draw after the installation is complete, into working condition due to heating furnace
Bar simultaneously installs heat insulation structural, and whole process is more complicated, and installation is inconvenient.
Invention content
For the prior art there are above-mentioned technical problem, the present invention provides a kind of integral strength ensureing furnace wall, installs
The journey easily heating furnace with pull rod.
To achieve the above object, the present invention provides following technical scheme：
A kind of heating furnace with pull rod is provided, includes the furnace wall for being used to surround chamber positioned at side, the furnace wall includes vertical
Column and furnace wall plate, the furnace wall plate are fixed on the column, pull rod and fixed structure are provided between opposite column, and pull rod is solid
Due to the column and it is not passed through furnace wall plate, the column is fixed in the both ends of the pull rod by the fixed structure.
Wherein, the fixed structure includes bottom plate and the connecting seat that section is " Ω " shape, and the both sides of the connecting seat are logical
Cross the first stud, the first nut is fixed on the column, the bottom plate is arranged between connecting seat and the column, described first
Stud sequentially passes through column, bottom plate and connecting seat, and the top of the connecting seat is fixed in the end of the pull rod.
Wherein, be provided with heat insulating washer between the connecting seat and the bottom plate, first stud sequentially pass through column,
Bottom plate, heat insulating washer and connecting seat.
Wherein, the end set of the pull rod has external screw thread, the end of the pull rod to pass through lock after the connecting seat
Tight nut is fixed.
Wherein, the connecting seat is integrated with the pull rod.
Wherein, the fixed structure includes lug and the transition piece of Y-shaped, and the lug passes through the second stud, the second spiral shell
Mother is fixed on the column, and the opening of the transition piece is fixed on the lug by third stud, third nut, described
Transition piece is fixedly connected with the pull rod, and the heat insulating mattress for being sheathed on third stud is provided between the transition piece and the lug
Circle.
Wherein, the pull rod is integrated with the transition piece.
Wherein, the fixed structure includes lug and the transition piece of " u "-shaped, and the lug passes through the 4th stud, the 4th spiral shell
Mother is fixed on the column, and the opening of the transition piece is fixed on the lug by the 5th stud, the 5th nut, described
Transition piece is fixedly connected with the pull rod, and the heat insulating mattress for being sheathed on the 5th stud is provided between the transition piece and the lug
Circle.
Wherein, the end set of the pull rod has external screw thread, the end of the pull rod to pass through spiral shell after the transition piece
Mother fixes.
Wherein, once-cast lining, the company of the pull rod and the fixed structure are provided with below the fixed structure
It connects place and is provided with second pouring lining.
Beneficial effects of the present invention：
A kind of heating furnace with pull rod of the present invention, includes the furnace wall for being used to surround chamber positioned at side, and furnace wall includes vertical
Column and furnace wall plate, furnace wall plate are fixed on column, pull rod and fixed structure are provided between opposite column, and pull rod is fixed on column
And it is not passed through furnace wall plate, column is fixed in the both ends of pull rod by fixed structure.Compared with prior art, the present invention is due to nothing
It need to be passed through for pull rod in furnace wall plate trepanning, and fixed structure is fixed on column, therefore the structure will not reduce the strong of furnace wall
Degree plays the role of improving furnace wall integral strength.Since pull rod is arranged on the inside of furnace wall and is not passed through furnace wall plate, in entirety
Equipment without removing pull rod, eliminates the process that block trepanning in the past after installation is complete.Also due to without removing pull rod,
Therefore internal heat insulation structural can be just carried out before the mounting, avoid working at height from carrying out installation heat insulation structural, therefore entire
Installation process is more convenient.
Description of the drawings
Fig. 1 is the structural schematic diagram of heating furnace in the prior art in the mounted state.
Fig. 2 is the sectional view in the directions S1-S1 in Fig. 1.
Fig. 3 is the structural schematic diagram of heating furnace in the operating condition in the prior art.
Fig. 4 is a kind of structural schematic diagram of heating furnace with pull rod in embodiment.
Fig. 5 is the sectional view in the directions A1-A1 in Fig. 4.
Fig. 6 is the sectional view in the directions A2-A2 in Fig. 5.
Fig. 7 is a kind of structural schematic diagram of heating furnace with pull rod in embodiment two.
Fig. 8 is the sectional view in the directions B1-B1 in Fig. 7.
Fig. 9 is the sectional view in the directions B2-B2 in Fig. 8.
Figure 10 is a kind of structural schematic diagram of heating furnace with pull rod in embodiment three.
Figure 11 is the sectional view in the directions C1-C1 in Figure 10.
Figure 12 is the sectional view of other direction in Figure 10.
Figure 13 is a kind of structural schematic diagram of heating furnace with pull rod in example IV.
Figure 14 is the sectional view in the directions D1-D1 in Figure 13.
Figure 15 is the sectional view in the directions D2-D2 in Figure 14.
The reference numeral of Fig. 1 to Fig. 3：
Column 10, hollow pipe 20, deformed steel 30, furnace wall plate 40, plug 50, core material 60, pull rod 70.
The reference numeral of Fig. 4 to Figure 15：
Furnace wall 1, column 11；
Pull rod 2；
Connecting seat 21, the first stud 22, the first nut 23, heat insulating washer 24, locking nut 25, bottom plate 26；
Lug 31, the transition piece 32 of Y-shaped, the second stud 33, the second nut 34, third stud 35, third nut 36, every
Heat pad circle 37；
Transition piece 41, the 4th stud 42, the 4th nut 43, the 5th stud 44, the 5th nut 45, the heat insulating washer of " u "-shaped
46。
Once-cast lining region 51, second pouring lining region 52.
Specific implementation mode
Below in conjunction with specific embodiment and attached drawing, the present invention is described in detail.
Embodiment 1
A kind of one of heating furnace with pull rod of the present embodiment as shown in Figures 4 to 6, including is located at side for surrounding
The furnace wall 1 of chamber, the furnace wall 1 include column 11 and furnace wall plate, and the peripheral portion partial layer of the furnace wall plate is folded to be fixedly welded on
The column 11 is provided with pull rod 2 and fixed structure between opposite column 11, and pull rod 2 is arranged in the inside of furnace wall and does not wear
Cross furnace wall plate, the column 11 is fixed in the both ends of the pull rod 2 by the fixed structure, i.e., column 11 not by furnace wall
Plate covering place.Specifically, the fixed structure includes bottom plate 26 and the connecting seat 21 that section is " Ω " shape, the connecting seat
The column 11 is fixed in 21 both sides by 22, two the first nuts 23 of the first stud, and the setting of the bottom plate 26 is connecting
Between seat 21 and the column 11, first stud 22 sequentially passes through column 11, bottom plate 26 and connecting seat 21, the first nut
23 lock the both ends of the first stud 22 respectively, and the top among the connecting seat 21 is fixed in the end of the pull rod 2, in this way
Fixed structure it is all very balanced in lateral longitudinal stress, whole machine balancing is stablized, under working condition, even if pull rod 2 is by heat wave
Impact there will not be loosening.
Compared with prior art, the present invention is passed through in furnace wall plate trepanning for pull rod 2 due to being not necessarily to, and fixed structure is fixed
On column 11, therefore the structure will not reduce the intensity of furnace wall, play the role of improving 1 integral strength of furnace wall.Due to pull rod 2
After setting is on the inside of furnace wall and is not passed through furnace wall plate, therefore installation is complete in integral device, without removing pull rod 2, eliminate
The process that blocked trepanning in the past.Also due to without removing pull rod 2, therefore internal heat-insulated knot can be just carried out before the mounting
Structure avoids working at height from carrying out installation heat insulation structural, therefore whole installation process is more convenient.
Specifically, be provided with heat insulating washer 24 between the connecting seat 21 and the bottom plate 26, first stud 22 according to
It is secondary to pass through column 11, bottom plate 26, heat insulating washer 24 and connecting seat 21.Heat insulating washer 24 can reduce pull rod 2 and connecting seat 21
In heat transfer to furnace wall plate, heat insulation is improved.
In the present embodiment, the end set of the pull rod 2 has external screw thread, the end of the pull rod 2 to pass through the connecting seat
It is fixed by locking nut 25 after 21, the structure install convenient that pull rod 2 and connecting seat 21 are detachably connected.
Wherein, once-cast lining region 51, the pull rod 2 and the fixed knot are provided with below the fixed structure
It is provided with second pouring lining region 52 in place of the connection of structure.
Embodiment 2
The two of the specific implementation mode of a kind of heating furnace with pull rod of the present embodiment, the main technical schemes of the present embodiment
Same as Example 1, unaccounted feature is no longer repeated herein using the explanation in embodiment 1 in the present embodiment.
Difference lies in shown in Fig. 7, Fig. 8 and Fig. 9, the connecting seat 21 is one with the pull rod 2 to the present embodiment with embodiment 1
Body structure can be integrally casting shaping or be welded and fixed molding, and the structure of integral type can be first pull rod 2 and mounting base
It is fixed into an entirety, then again on the inside of integral installation to furnace wall, installation is also very convenient.
Embodiment 3
The three of the specific implementation mode of a kind of heating furnace with pull rod 2 of the present embodiment, the major technique side of the present embodiment
Case is same as Example 1, and unaccounted feature is no longer gone to live in the household of one's in-laws on getting married herein using the explanation in embodiment 1 in the present embodiment
It states.The present embodiment and embodiment 1 are difference lies in devising different fixed structures, shown in Figure 10, Figure 11 and Figure 12, institute
It includes 31 He of lug to state fixed structure " transition pieces 32 of Y " shapes, the lug 31 passes through the second stud 33, the second nut 34 is fixed
The lug 31, institute are fixed on by third stud 35, third nut 36 in the opening of the column 11, the transition piece
It states transition piece 32 to be fixedly connected with the pull rod 2, is provided between the transition piece 32 and the lug 31 and is sheathed on third spiral shell
The heat insulating washer 37 of column 35.
In the present embodiment, the pull rod 2 is integrated with the transition piece 32.The structure of integral type can be first drawing
Bar 2 and mounting base are fixed into an entirety, and then again on the inside of integral installation to furnace wall, installation is also very convenient.
Embodiment 4
The four of the specific implementation mode of a kind of heating furnace with pull rod of the present embodiment, the main technical schemes of the present embodiment
Same as Example 1, unaccounted feature is no longer repeated herein using the explanation in embodiment 1 in the present embodiment.
The present embodiment and embodiment 1 are described shown in Figure 13, Figure 14 and Figure 15 difference lies in devising different fixed structures
Fixed structure includes 31 He of lug " transition pieces 41 of U " shapes, the lug 31 is fixed on by the 4th stud 42, the 4th nut 43
The opening of the column 11, the transition piece 41 is fixed on the lug 31 by the 5th stud 44, the 5th nut 45, institute
It states transition piece 41 to be fixedly connected with the pull rod 2, is provided between the transition piece 41 and the lug 31 and is sheathed on the 5th spiral shell
The heat insulating washer 46 of column 44.
In the present embodiment, the end set of the pull rod 2 has external screw thread, the end of the pull rod 2 to pass through the transition piece
It is fixed afterwards by nut, the structure install convenient that pull rod 2 and connecting seat 21 are detachably connected.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of heating furnace with pull rod includes the furnace wall for being used to surround chamber positioned at side, it is characterized in that：The furnace wall includes
Column and furnace wall plate, the furnace wall plate are fixed on the column, pull rod and fixed structure, pull rod are provided between opposite column
It is fixed on the column and is not passed through furnace wall plate, the column is fixed in the both ends of the pull rod by the fixed structure.
2. a kind of heating furnace with pull rod according to claim 1, it is characterized in that：The fixed structure includes bottom plate and cuts
Face is the connecting seat of " Ω " shape, and the column is fixed in the both sides of the connecting seat by the first stud, the first nut, described
Bottom plate is arranged between connecting seat and the column, and first stud sequentially passes through column, bottom plate and connecting seat, the pull rod
End be fixed on the top of the connecting seat.
3. a kind of heating furnace with pull rod according to claim 2, it is characterized in that：Between the connecting seat and the bottom plate
It is provided with heat insulating washer, first stud sequentially passes through column, bottom plate, heat insulating washer and connecting seat.
4. a kind of heating furnace with pull rod according to claim 2, it is characterized in that：The end set of the pull rod has outer spiral shell
The end of line, the pull rod is fixed after the connecting seat by locking nut.
5. a kind of heating furnace with pull rod according to claim 2, it is characterized in that：The connecting seat is one with the pull rod
Body structure.
6. a kind of heating furnace with pull rod according to claim 1, it is characterized in that：The fixed structure include lug and
The transition piece of Y-shaped, the lug are fixed on the column, the opening of the transition piece by the second stud, the second nut
The lug is fixed on by third stud, third nut, the transition piece is fixedly connected with the pull rod, the transition piece
The heat insulating washer for being sheathed on third stud is provided between the lug.
7. a kind of heating furnace with pull rod according to claim 6, it is characterized in that：The pull rod is one with the transition piece
Body structure.
8. a kind of heating furnace with pull rod according to claim 1, it is characterized in that：The fixed structure include lug and
The transition piece of " u "-shaped, the lug are fixed on the column, the opening of the transition piece by the 4th stud, the 4th nut
It is fixed on the lug by the 5th stud, the 5th nut, the transition piece is fixedly connected with the pull rod, the transition piece
The heat insulating washer for being sheathed on the 5th stud is provided between the lug.
9. a kind of heating furnace with pull rod according to claim 8, it is characterized in that：The end set of the pull rod has outer spiral shell
The end of line, the pull rod is fixed after the transition piece by nut.
10. a kind of heating furnace with pull rod according to claim 1 to 9 any one, it is characterized in that：The fixed structure
Lower section be provided with once-cast lining, be provided with second pouring lining in place of the pull rod and the connection of the fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292239.9A CN108489273A (en) | 2018-03-30 | 2018-03-30 | A kind of heating furnace with pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292239.9A CN108489273A (en) | 2018-03-30 | 2018-03-30 | A kind of heating furnace with pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108489273A true CN108489273A (en) | 2018-09-04 |
Family
ID=63317812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810292239.9A Pending CN108489273A (en) | 2018-03-30 | 2018-03-30 | A kind of heating furnace with pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489273A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411215A (en) * | 2019-07-25 | 2019-11-05 | 茂名重力石化装备股份公司 | A kind of heating furnace of no pull rod |
| CN110411214A (en) * | 2019-07-25 | 2019-11-05 | 茂名重力石化装备股份公司 | A kind of heating furnace for cancelling pull rod |
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| GB591160A (en) * | 1944-04-29 | 1947-08-08 | Petro Chem Process Company Inc | Improvements relating to tubular heating furnaces |
| CN1563638A (en) * | 2004-03-15 | 2005-01-12 | 中国第二十冶金建设公司 | Formwork metthod for paired drawing walls of furnace in integral cast structural furnace |
| CN200974855Y (en) * | 2006-11-23 | 2007-11-14 | 中冶京诚工程技术有限公司 | Truss type steel structure of furnace top of heating furnace |
| CN204043392U (en) * | 2014-08-07 | 2014-12-24 | 中国石油天然气股份有限公司 | Heating furnace tube support frame gas blocking cover and heating furnace |
| CN206724714U (en) * | 2017-04-24 | 2017-12-08 | 中冶华天工程技术有限公司 | A kind of ending discharging furnace furnace wall protection device |
| CN208091225U (en) * | 2018-03-30 | 2018-11-13 | 茂名重力石化装备股份公司 | A kind of heating furnace with pull rod |
-
2018
- 2018-03-30 CN CN201810292239.9A patent/CN108489273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB591160A (en) * | 1944-04-29 | 1947-08-08 | Petro Chem Process Company Inc | Improvements relating to tubular heating furnaces |
| CN1563638A (en) * | 2004-03-15 | 2005-01-12 | 中国第二十冶金建设公司 | Formwork metthod for paired drawing walls of furnace in integral cast structural furnace |
| CN200974855Y (en) * | 2006-11-23 | 2007-11-14 | 中冶京诚工程技术有限公司 | Truss type steel structure of furnace top of heating furnace |
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Non-Patent Citations (1)
| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411215A (en) * | 2019-07-25 | 2019-11-05 | 茂名重力石化装备股份公司 | A kind of heating furnace of no pull rod |
| CN110411214A (en) * | 2019-07-25 | 2019-11-05 | 茂名重力石化装备股份公司 | A kind of heating furnace for cancelling pull rod |
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