CN101723785B - Cracking furnace with double-row arranged radiant section furnace tubes - Google Patents
Cracking furnace with double-row arranged radiant section furnace tubes Download PDFInfo
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Abstract
The invention relates to an ethylene cracking furnace. The radiant furnace tube of the cracking furnace of the invention is a two-pass vertical furnace tube; the furnace tube is arranged in two rows, a first pass tube is connected with a second pass tube by a return bend pipe, and both the orthographic projection and the profile projection of the return bend pipe are U-shaped; and the first pass tube and the second pass tube of each radiant furnace tube are arranged in a plane A and a plane B. The cracking furnace of the invention has the advantages that the structure of the furnace tube is simple; as the first pass tube and the second pass tube of the radiant furnace tube are connected by the return bend pipe, the furnace tube is symmetrical and simple in structure and has better mechanical property; as a plurality of furnace tubes can be arranged in the hearth, the method is applicable to the capacity expansion reconstruction of the conventional cracking furnace, which can save investment, and finally fulfills the aim of improving the economic benefit.
Description
Technical field
The present invention relates to a kind of ethane cracking furnace.
Background technology
In ethylene unit, pyrolyzer is nucleus equipment.The design of radiant coil is determine cracking selectivity, raising cracking product olefin yields and improve the adaptive key of different cracking stocks.Improve the structure of radiant coil and arrange, becoming part most crucial in the tube cracking furnace technical development.Over more than 20 year, single branch adapter bonnet, mixing branch adapter bonnet, the radiant coil of the different structure such as branch's adapter bonnet, one way equal pipe have not appearred in succession.
For making raw material consumption greatly reduce, keep suitable running period and having adaptability to raw material preferably, most company all adopts two journeys, and (18～28m) branch's reducings or two journey reducing highly selective boiler tubes will be controlled at 0.15～0.25s the residence time.The first journey pipe adopts the minor diameter boiler tube, utilizes the large characteristics of its specific surface area to reach the purpose that is rapidly heated, and the second journey pipe adopts larger-diameter boiler tube to reduce the impact on coking susceptibility.The two journey highly selective radiant coils that adopt have the boiler tubes such as 1-1 type, 2-1 type, 4-1 type, 5-1 type, 6-1 type, 8-1 type.
Two journey boiler tubes of the configurations such as employing 4-1,5-1,6-1, common four group's boiler tubes are joined a chilling (used heat) boiler; Boiler tube adopts wrong row to arrange, and namely the first journey pipe is single, the second journey pipe is double, and first, second journey boiler tube adopts special pipe connecting: flat cone-shaped tube connects at the end.U.S. Rumscorrest Co. has announced its boiler tube and has arranged in patent CN1067669, it enters the first journey pipe is 6, and the second journey Guan Weiyi root, the first journey pipe are connected with the second journey pipe by a collecting tubule in the bottom.This kind structure, because the first journey pipe is many, the second journey Guan Weiyi root, when the boiler tube expanded by heating, the second journey pipe first expands downwards, the first journey pipe moves downward under the traction of the second journey pipe, wherein from stressed less, stressed larger near the second journey pipe of the second Cheng Guanyuan, add the top and the bottom collecting tubule for being rigidly connected, consequently collecting tubule is minimum near the second journey pipe, oblique collecting tubule distal-most end the first journey pipe, such result is that a local journey pipe can't with second journey pipe when motion, will cause the crooking of the tubes.
Adopt 1-1 type boiler tube, a small group or two group's boiler tubes are joined a linear chilling (used heat) boiler usually, all the bottom heat supply; Boiler tube usually adopts single, and the first journey pipe bottom is outward-dipping, then is connected with vertical the second journey pipe bottom by semi-circular tube.Two kinds of arrangement modes are arranged: 1) first, second journey pipe difference centralized arrangement.Exxon.Mobil chemical patents Corp has announced a kind of pyrolyzer in the CN1259981 patent.2) the second adjacent arrangement of journey pipe of employing the first journey pipe as disclosed in US Patent No. 6528027 and another group boiler tube.These two kinds of common shortcomings of structure boiler tube are due to outward-dipping and the second journey pipe in the first journey pipe bottom inclined in opposite directions not, adjacent the first journey pipe tilts toward opposite side simultaneously, consequently under the boiler tube heating status, whole radiating furnace tube can not keep single well, can naturally become double for eliminating stress.
Adopt 2-1 type two journey boiler tubes, common eight group's boiler tubes are joined a quenching boiler; EP1146105 discloses the pyrolyzer that such furnace tube structure is arranged: two-range radiant section boiler tube is arranged vertically in the radiation section burner hearth, the straight tube of one journey pipe and two journey pipes is arranged in a plane, one Cheng Zhiguan with are connected the journey pipe respectively by the connection of Guan Yuyi bend pipe of S shape, the S shape pipe of one journey pipe and two journey pipes is parallel respectively, bridge piece can be semicircle, half elliptic or semioval shape, and each bend pipe is identical with plane, straight tube place angulation.
Adopt 1-1 type boiler tube, a small group or two group's boiler tubes are joined a linear chilling (used heat) boiler usually; Boiler tube adopts first, second journey pipe centralized arrangement respectively, adopts doublely, and between first, second journey pipe, pipe connecting is 90 to spend bend pipes, level pipe, sees Figure 12.
The arrangement mode of boiler tube singlely develops into doublely from initial, and for single, identical ability needs larger floor space, and its advantage is that the boiler tube radial temperature profile is even, exists the situation of covering less; For double, greatly dwindled the floor space of pyrolyzer, but the situation of covering is more serious, affected the boiler tube radial temperature profile, and the ease of connection between its first journey, the second journey pipe causes the bending of boiler tube.
Pyrolyzer radiating furnace tube structure is also connected to flexibility bend pipe connection preferably development by simple, flexible relatively poor elbow.
Summary of the invention
Purpose of the present invention is exactly to exist defective and deficiency, the pyrolyzer that provides a kind of radiant coil novel texture to arrange in order to overcome the single and double structure of radiant coil in prior art and to arrange.
Cracking furnace with double-row arranged radiant section furnace tubes of the present invention is achieved in that
Cracking furnace with double-row arranged radiant section furnace tubes of the present invention comprises radiation zone, burner, is arranged in radiating furnace tube, convective region, quenching boiler and high pressure drum in radiation zone; It is characterized in that:
Many group radiating furnace tubes are arranged in radiation zone, and wherein each group radiating furnace tube is comprised of a plurality of radiating furnace tubes;
Described each radiating furnace tube is two journey vertical furnace tubes, and its first journey pipe is that inlet tube, the second journey pipe are outlet pipe; Adopt the return bent pipe web member to connect between described the first journey pipe and the second journey pipe;
In the radiating furnace tube group, the medullary ray of the second journey pipe of the medullary ray of the first journey pipe of half radiating furnace tube and second half radiating furnace tube consists of plane A and plane B two planes; The symmetrical center line of the return bent pipe web member of each radiating furnace tube in this group radiating furnace tube all is in a vertical plane, this plane is called plane C, described plane A is parallel with plane C with plane B, and plane A and plane B are symmetrically distributed in respectively C both sides, plane;
Described each return bent pipe web member is a three-dimensional arrangement part, and take plane C as the plane of symmetry, its side-looking is projected as the curve of a symmetry, and its downward projection is the identical straight-line segment of length; In described same group of radiating furnace tube, the return bent pipe web member of each radiating furnace tube divides the up and down two-layer cross arrangement, every layer of parallel arrangement.
Above-mentioned return bent pipe web member can be arc, semicircle, half elliptic, the parabola shaped or web member of falling Ω, and the Ω that wherein falls is that described arc, semicircle, half elliptic, parabola shaped web member and S type bend pipe combine.
The first journey pipe of one group of above-mentioned radiating furnace tube can be arranged in the same end of plane A and B, and the second journey pipe can be arranged in the other end of plane A and B.
The first journey pipe and the second journey pipe of aforesaid each radiating furnace tube also can be in respectively in described plane A and B, and the second journey pipe of the first journey of a radiating furnace tube in same plane and another radiating furnace tube can adjacently be arranged.A upper end, described plane and B upper end, plane can tilt to plane C constant amplitude, the pitch angle is no more than 45 degree for good.Web member between described the first journey pipe and the second journey pipe can divide the up and down two-layer layout, and every layer of web member downward projection is one group of parallel lines, and two-layer web member downward projection is one group of interlacing line.
The radiating furnace tube of foregoing ethane cracking furnace is included as 1-1 type, 2-1 type, the 2/1-1 type, and 3-1 type or 3/1-1 type boiler tube, wherein:
The first journey pipe and the second journey pipe of described 1-1 type boiler tube can be a pipe, are connected with its second journey pipe by described return bent pipe web member;
The first journey pipe of described 2-1 type boiler tube can be two pipes, the second journey Guan Weiyi root pipe;
The first journey pipe of described 2/1-1 type boiler tube divides can be two sections, and epimere is two pipes, and hypomere is a pipe, connects the second journey Guan Weiyi root pipe between upper and lower section by a three-way connector;
The first journey pipe of described 3-1 type boiler tube can be three pipes, the second journey Guan Weiyi root pipe;
The first journey pipe of described 3/1-1 type boiler tube can be divided into two sections, and epimere is three pipes, and hypomere is a pipe, connects the second journey Guan Weiyi root pipe between upper and lower section by a four-way web member.
Foregoing radiating furnace tube can arrange enhanced heat transfer member, comprises any type, can be for example twisted sheet furnace tube heat transfer member.
The caliber of foregoing radiating furnace tube can be segmentation reducing or continuous reducing.
The beneficial effect of ethane cracking furnace of the present invention:
1, radiating furnace tube of the present invention is double arranging, and it is symmetrical that the first journey pipe of radiating furnace tube adopts the return bent pipe web member to be connected with the second journey pipe, and boiler tube is stressed evenly, and its structural flexibility is large, has mechanical property preferably;
2, compared to existing technology in radiant coil double-row mode for cloth, owing to adopting entrance boiler tube and the adjacent arrangement of outlet boiler tube, can further reduce the boiler tube spacing, shorten the length of pyrolyzer radiation section, save floor occupying area.In the furnace cavity of same length, pyrolyzer of the present invention can be placed more groups of boiler tubes, thereby larger throughput is provided.
3. the outstanding effect of the web member of falling Ω is to arrange can not guarantee between every layer of pipe connecting, sufficient space to be arranged the time when boiler tube, guarantee between every layer of pipe connecting, sufficient space is arranged by the web member of falling Ω, it also can absorb the differential expansion between first and second layer pipe better simultaneously.
4, adopted enhanced heat transfer member, eliminated the problem of non-uniform of being heated of radiating furnace tube, can effectively reduce the bending of boiler tube, can improve pyrolyzer online rate, reduce process cost and extend boiler tube work-ing life, the final purpose of increasing economic efficiency of realizing.
Description of drawings
Fig. 1 is the schematic diagram of ethane cracking furnace of the present invention.
Fig. 2 is the vertical view that one group of 2-1 type boiler tube of the present invention arranged and illustrated.
Fig. 3 is front view, vertical view, the side-view that one group of 1-1 type boiler tube of the present invention is arranged and illustrated.
Fig. 4 is front view, vertical view, the side-view that one group of 1-1 type boiler tube of the present invention is arranged and illustrated
Fig. 5 is front view, the side-view that two groups of 1-1 type boiler tubes of the present invention are arranged and illustrated.
Fig. 6 is the vertical view that two group of 1-1 type boiler tube of the present invention arranged and illustrated.
Fig. 7 A, 7B are the vertical views that two group of 1-1 type boiler tube of the present invention arranged and illustrated.
Fig. 8 is front view, vertical view, the side-view (Figure of abstract) that one group of 1-1 type boiler tube of the present invention is arranged and illustrated.
Fig. 9 is front view, vertical view, the side-view that two group of 1-1 type boiler tube of the present invention arranged and illustrated.
Figure 10 is front view, vertical view, the side-view that one group of 1-1 type boiler tube of the present invention arranged and illustrated.
Figure 11 A, 11B are the vertical views that two group of 1-1 type boiler tube of the present invention arranged and illustrated.
Figure 12 is front view, vertical view, the side-view that 1-1 type boiler tube of one group of prior art is arranged and illustrated.
Embodiment
As shown in drawings:
Fig. 2 is the vertical view that one group of 2-1 type boiler tube of the present invention arranged and illustrated.Form one group by 8 radiating furnace tubes, wherein the first journey pipe 1 is arranged in together, and the second journey pipe 2 is arranged in together; The first journey pipe 1 is arranged in the left side of plane A, plane B, and the second journey pipe 2 places are arranged in the right side of plane A, plane B.Plane A, plane B are symmetrical with plane C.
The boiler tube of Fig. 3 is arranged and is formed one group by 8 radiating furnace tubes, and wherein the first journey pipe 1 is arranged in the left side of plane A, plane B, the second journey pipe 2 be arranged in plane A, plane B the right side.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel lines, and two-layer pipe connecting downward projection is one group of interlacing line.The facing and look closely " U " type that is projected as of pipe connecting between the first journey pipe and the second journey pipe.
The boiler tube of Fig. 4 is arranged and is formed one group by 8 radiating furnace tubes, and wherein the first journey pipe 1 is arranged in the left side of plane A, plane B, the second journey pipe 2 be arranged in plane A, plane B the right side.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel " Z " molded line, and two-layer pipe connecting downward projection is one group of intersection " Z " molded line.Facing of pipe connecting between the first journey pipe and the second journey pipe is projected as " U " type, looks closely the type of falling Ω of being projected as.
The boiler tube of Fig. 5 is arranged and is formed one group by 16 radiating furnace tubes, and wherein two group of second journey pipe 2 is arranged in together.
The boiler tube of Fig. 6 is arranged and is formed one group by 8 radiating furnace tubes, and wherein the first journey pipe of the second journey pipe of one group of radiating furnace tube and another group radiating furnace tube is adjacent.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel molded line, and two-layer pipe connecting downward projection is one group of interlacing line.
Fig. 7 A, 7B are the arrange vertical views of signal of two group of 1-1 type boiler tube, form one group by 8 radiating furnace tubes, and wherein the second journey pipe of one group of radiating furnace tube is adjacent with another first journey pipe of organizing radiating furnace tube.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel " Z " molded line, and two-layer pipe connecting downward projection is one group of intersection " Z " molded line.
Fig. 8 is arrange front view, vertical view, the side-view of signal of one group of 1-1 type boiler tube.Form one group by 8 radiating furnace tubes, wherein in arbitrary plane of two parallel planes A and B, the first journey pipe of the second journey pipe of each radiating furnace tube and other radiating furnace tubes is adjacent.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel lines, and two-layer pipe connecting downward projection is one group of interlacing line.The facing and look closely " U " type that is projected as of pipe connecting between the first journey pipe and the second journey pipe.
The boiler tube of Fig. 9 is arranged and is comprised of 16 radiating furnace tubes, and wherein in arbitrary plane of two parallel planes A and B, the first journey pipe of the second journey pipe of each radiating furnace tube and other radiating furnace tubes is adjacent.Pipe connecting in every group of boiler tube between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel lines, and two-layer pipe connecting downward projection is one group of interlacing line.The facing and look closely " U " type that is projected as of pipe connecting between the first journey pipe and the second journey pipe.
The boiler tube of Figure 10 is arranged and is formed one group by 8 radiating furnace tubes, and wherein in arbitrary plane of two parallel planes A and B, the first journey pipe of the second journey pipe of each radiating furnace tube and other radiating furnace tubes is adjacent.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel " Z " molded line, and two-layer pipe connecting downward projection is one group of intersection " Z " molded line.Facing of pipe connecting between the first journey pipe and the second journey pipe is projected as " U " type, looks closely the type of falling Ω of being projected as.
The boiler tube of Figure 11 A, 11B is arranged and is formed one group by 8 radiating furnace tubes, and wherein in arbitrary plane of two parallel planes A and B, the first journey pipe of the second journey pipe of each radiating furnace tube and other radiating furnace tubes is adjacent.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel " Z " molded line, and two-layer pipe connecting downward projection is one group of intersection " Z " molded line.
It is that a kind of of prior art arranges that the boiler tube of Figure 12 is arranged, and is comprised of 8 radiating furnace tubes, and wherein the same end of two parallel planes A and B is arranged the first journey pipe, arranged the second journey pipe of radiating furnace tube at the other end.Pipe connecting between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of pipe connecting downward projection is one group of parallel lines, and two-layer pipe connecting downward projection is one group of interlacing line.The facing projection and look closely that projection by two 90 what level pipes of degree elbow consists of of pipe connecting between the first journey pipe and the second journey pipe
Type.
Provide an embodiment below in conjunction with accompanying drawing 7.Below description only represents the specific embodiment of the present invention, just for further the present invention will be described, and does not limit the invention.
Pyrolyzer of the present invention comprises high pressure gas bag 3, convection zone 4, radiation section 5, is arranged vertically many groups radiating furnace tube 7, burner 8, quenching boiler 6 at radiation section; Radiation section burner hearth internal height 13700mm, width 3550mm, length 18930mm.Be comprised of the first journey pipe 1 and the second journey pipe 2 the double two vertical radiating furnace tubes of journey that each 1-1 type is arranged, every row all arranges first and second journey pipe and is staggered, and adopts semi-circular bend pipe web member to connect between the first journey pipe and the second journey pipe; The cracking material is introduced by the first journey pipe, is drawn by the second journey pipe.The first journey pipe bottom is fixedly connected with an end of described return bent pipe web member; The second journey pipe of radiating furnace tube comprises: an outlet pipe is fixedly connected with the other end of described return bent pipe web member.Plane A is parallel with B, spacing 400mm.The return bent pipe web member is parallel to each other.The length of the first journey pipe 1 and the second journey pipe 2 is all 13800mm.Take 4 boiler tubes as one group, radiation section is arranged 24 groups of boiler tubes.Each boiler tube outlet connects a Linear shape cooling boiler.Boiler tube return bent pipe web member divides two-layer, every layer of parallel to each other arranging of each pipe connecting, two-layer pipe connecting cross arrangement.Boiler tube hangs by the constant force spring hanging frame at top.The internal diameter of the first journey boiler tube is 45mm～60mm, and the internal diameter of the second journey boiler tube is 65mm～75mm.The radiating furnace tube caliber is a certain value between above-mentioned scope.
The radiation section heat supply is provided jointly by base burning device and radiant wall burner, wherein bottom heat supply 70%.
Quenching boiler adopts Linear shape cooling boiler, and each 1-1 boiler tube directly is connected with a Linear shape cooling boiler.
If existing pyrolyzer is transformed, is supplied thermal ratio (bottom heat supply), the cold form of chilling pot can keep original design pattern as the case may be.
Claims (8)
1. ethane cracking furnace, this pyrolyzer comprise radiation zone, burner, are arranged in radiating furnace tube, convective region, quenching boiler and high pressure drum in radiation zone; It is characterized in that:
Many group radiating furnace tubes are arranged in radiation zone, and wherein each group radiating furnace tube is comprised of a plurality of radiating furnace tubes;
Described each radiating furnace tube is two journey vertical furnace tubes, and its first journey pipe is that inlet tube, the second journey pipe are outlet pipe; Adopt the return bent pipe web member to connect between described the first journey pipe and the second journey pipe;
In the radiating furnace tube group, the medullary ray of the second journey pipe of the medullary ray of the first journey pipe of the first half radiating furnace tube and later half radiating furnace tube consists of plane A, and the medullary ray of the first journey pipe of the medullary ray of the second journey pipe of the first half radiating furnace tube and later half radiating furnace tube consists of plane B; The symmetrical center line of the return bent pipe web member of each radiating furnace tube in this group radiating furnace tube all is in a vertical plane, this plane is called plane C, described plane A is parallel with plane C with plane B, and plane A and plane B are symmetrically distributed in respectively C both sides, plane;
Described each return bent pipe web member is a three-dimensional arrangement part, and take plane C as the plane of symmetry, its side-looking is projected as the curve of a symmetry, and its downward projection is the identical straight-line segment of length; In described same group of radiating furnace tube, the return bent pipe web member of each radiating furnace tube divides the up and down two-layer cross arrangement, every layer of parallel arrangement;
Described return bent pipe web member is arc, semicircle, half elliptic, the parabola shaped or web member of falling Ω, and the Ω that wherein falls is that described arc, semicircle, half elliptic, parabola shaped web member and S type bend pipe combine.
2. ethane cracking furnace according to claim 1 is characterized in that:
The first journey pipe of one group of radiating furnace tube is arranged in the same end of plane A and B, and the second journey Guan Ze is arranged in the other end of plane A and B.
3. ethane cracking furnace according to claim 1 is characterized in that:
The first journey pipe of each radiating furnace tube and the second journey pipe are in respectively in described plane A and B, the second adjacent layout of journey pipe of the first journey of a radiating furnace tube in same plane and another radiating furnace tube.
4. ethane cracking furnace according to claim 3 is characterized in that:
A upper end, plane and B upper end, plane are no more than 45 degree to the inclination of plane C constant amplitude, pitch angle.
5. ethane cracking furnace according to claim 4 is characterized in that:
Web member between the first journey pipe and the second journey pipe divides the up and down two-layer layout, and every layer of web member downward projection is one group of parallel lines, and two-layer web member downward projection is one group of interlacing line.
6. one of according to claim 1-5 described ethane cracking furnaces is characterized in that:
Described radiating furnace tube is 1-1 type, 2-1 type, the 2/1-1 type, and 3-1 type or 3/1-1 type boiler tube, wherein,
The first journey pipe and the second journey pipe of described 1-1 type boiler tube are a pipe, are connected with its second journey pipe by described return bent pipe web member;
The first journey pipe of described 2-1 type boiler tube is two pipes, the second journey Guan Weiyi root pipe;
The first journey pipe of described 2/1-1 type boiler tube is divided into two sections, and epimere is two pipes, and hypomere is a pipe, connects the second journey Guan Weiyi root pipe between upper and lower section by a three-way connector;
The first journey Guan Weisan root pipe of described 3-1 type boiler tube, the second journey Guan Weiyi root pipe;
The first journey pipe of described 3/1-1 type boiler tube is divided into two sections, and epimere is three pipes, and hypomere is a pipe, connects the second journey Guan Weiyi root pipe between upper and lower section by a four-way web member.
7. ethane cracking furnace according to claim 6 is characterized in that:
Described radiating furnace tube arranges enhanced heat transfer member.
8. ethane cracking furnace according to claim 6 is characterized in that:
The caliber of described radiating furnace tube is segmentation reducing or continuous reducing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224279 CN101723785B (en) | 2008-10-16 | 2008-10-16 | Cracking furnace with double-row arranged radiant section furnace tubes |
| TW98135111A TWI467000B (en) | 2008-10-16 | 2009-10-16 | A double row of radiant furnace tube cracking furnace |
| MYPI20094367A MY169740A (en) | 2008-10-16 | 2009-10-16 | An cracking furnace having radiant section tubes in two-row arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224279 CN101723785B (en) | 2008-10-16 | 2008-10-16 | Cracking furnace with double-row arranged radiant section furnace tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101723785A CN101723785A (en) | 2010-06-09 |
| CN101723785B true CN101723785B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810224279 Active CN101723785B (en) | 2008-10-16 | 2008-10-16 | Cracking furnace with double-row arranged radiant section furnace tubes |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101723785B (en) |
| MY (1) | MY169740A (en) |
| TW (1) | TWI467000B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773422B (en) * | 2012-10-23 | 2015-10-07 | 中国石油化工股份有限公司 | A kind of two-range radiant section boiler tube for ethane cracking furnace |
| CN104232146B (en) * | 2013-06-14 | 2015-11-18 | 中国石化工程建设有限公司 | A kind of ethane cracking furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528027B1 (en) * | 1997-05-13 | 2003-03-04 | Stone & Webster Process Technology, Inc. | Cracking furance having radiant heating tubes the inlet and outlet legs of which are paired within the firebox |
| CN1730449A (en) * | 2005-08-05 | 2006-02-08 | 上海惠生化工工程有限公司 | Two procedure radiation furnace tube of novel structure and arrangement |
| CN101062883A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Cracking furnace with radiation furnace tubes configured in U-shaped structure |
| CN101062884A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Cracking furnace with two-stroke radiation furnace tube |
| CN101062881A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Novel configured single-stroke furnace tube ethylene cracking furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836913Y (en) * | 2005-08-05 | 2006-11-15 | 上海惠生化工工程有限公司 | Two-segment radiation furnace pipe with novel structure and arrangement for cracking furnace |
| CN201065388Y (en) * | 2006-04-29 | 2008-05-28 | 中国石油化工股份有限公司 | Pyrolysis furnace for two-range radiation furnace pipe |
-
2008
- 2008-10-16 CN CN 200810224279 patent/CN101723785B/en active Active
-
2009
- 2009-10-16 MY MYPI20094367A patent/MY169740A/en unknown
- 2009-10-16 TW TW98135111A patent/TWI467000B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528027B1 (en) * | 1997-05-13 | 2003-03-04 | Stone & Webster Process Technology, Inc. | Cracking furance having radiant heating tubes the inlet and outlet legs of which are paired within the firebox |
| CN1730449A (en) * | 2005-08-05 | 2006-02-08 | 上海惠生化工工程有限公司 | Two procedure radiation furnace tube of novel structure and arrangement |
| CN101062883A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Cracking furnace with radiation furnace tubes configured in U-shaped structure |
| CN101062884A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Cracking furnace with two-stroke radiation furnace tube |
| CN101062881A (en) * | 2006-04-29 | 2007-10-31 | 中国石油化工股份有限公司 | Novel configured single-stroke furnace tube ethylene cracking furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| MY169740A (en) | 2019-05-14 |
| TW201026839A (en) | 2010-07-16 |
| TWI467000B (en) | 2015-01-01 |
| CN101723785A (en) | 2010-06-09 |
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Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant after: Sinopec Corp. Co-applicant after: Sinopec Engineering Incorporation Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Applicant before: Sinopec Corp. Co-applicant before: Engrg Construction Co., SINOPEC |
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