CN204198685U - A kind of ethane cracking furnace 5-1-1 type radiating furnace tube - Google Patents
A kind of ethane cracking furnace 5-1-1 type radiating furnace tube Download PDFInfo
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- CN204198685U CN204198685U CN201420679734.2U CN201420679734U CN204198685U CN 204198685 U CN204198685 U CN 204198685U CN 201420679734 U CN201420679734 U CN 201420679734U CN 204198685 U CN204198685 U CN 204198685U
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Abstract
The utility model provides a kind of ethane cracking furnace 5-1-1 type radiating furnace tube, belongs to pyrolyzer field.This device comprises the first journey boiler tube, the second journey boiler tube and the 3rd journey boiler tube; Described first journey boiler tube comprises five boiler tubes, and the second journey boiler tube and the 3rd journey boiler tube comprise a boiler tube respectively; One end of described first journey boiler tube is connected with the inlet end of five in one collecting tubule, and the exit end of five in one collecting tubule is connected with one end of U-tube, and the other end of U-tube is connected with one end of transition conduit, and the other end of transition conduit is connected with one end of the second journey boiler tube; The other end of the second journey boiler tube is connected with the one end across pipe, and the other end across pipe is connected with one end of the 3rd journey boiler tube; The opening end of described first journey boiler tube is positioned at the top, and the opening end of described 3rd journey boiler tube is positioned at bottom; Or the opening end of described first journey boiler tube is positioned at bottom, the opening end of described 3rd journey boiler tube is positioned at the top.
Description
Technical field
The utility model belongs to pyrolyzer field, is specifically related to a kind of ethane cracking furnace 5-1-1 type radiating furnace tube.
Background technology
The radiant coil that in petrochemical complex ethylene unit, ethane cracking furnace extensively adopts is configured as two journey boiler tubes and quadruple pass boiler tube, and three journey pipes also do not have application in ethane cracking furnace.
As depicted in figs. 1 and 2, two journey 2-1 types (comprising the first journey boiler tube 1 and the second journey boiler tube 2, transition conduit 5 and Y-piece 6) and the quadruple pass 2-1-1-1 type boiler tube (comprising the first journey boiler tube 1, second journey boiler tube 2, the 3rd journey boiler tube 3 and quadruple pass boiler tube 4, transition conduit 5 and Y-piece 6) of stone-Robert Webster company exploitation are typical branch adapter bonnet, the caliber of these two kinds of boiler tubes is by Cheng Fang great, but the pipe number of the first journey pipe is 1, the pipe number of all the other tube sides is all 1, and the residence time is about 0.15s-0.3s.Two journey 2-1 type boiler tube length are short compared with quadruple pass 2-1-1-1 type boiler tube, and the residence time is also shorter, and pressure drop is also less; Comparatively two journey 2-1 type boiler tubes are long for quadruple pass 2-1-1-1 type boiler tube, and the residence time is also slightly long, and pressure drop is also larger, but throughput is large compared with two journey 2-1 type boiler tubes.
At present, no matter be that two journey 2-1 types and quadruple pass 2-1-1-1 type boiler tube are arranged, radiating furnace tube entrance and exit is all at pyrolyzer radiation furnace roof, be arranged in the small space of furnace roof across pipe, furnace tube spring hanger system and waste heat boiler, their rational, collisionless layouts are the difficult points of engineering design always.
Utility model content
The purpose of this utility model is to solve the difficult problem existed in above-mentioned prior art, a kind of ethane cracking furnace 5-1-1 type radiating furnace tube is provided, it has the feature of two journey 2-1 type boiler tubes compared with short residence time(SRT) and low pressure drop, there is again the feature that quadruple pass 2-1-1-1 type boiler tube throughput is larger, three journey 5-1-1 type radiating furnace tube material bottom in and top out or upper entering and lower leavings.
The utility model is achieved through the following technical solutions:
A kind of ethane cracking furnace 5-1-1 type radiating furnace tube, comprises the first journey boiler tube, the second journey boiler tube and the 3rd journey boiler tube;
Described first journey boiler tube comprises five boiler tubes, and the second journey boiler tube and the 3rd journey boiler tube comprise a boiler tube respectively;
One end of described first journey boiler tube is connected with the inlet end of five in one collecting tubule, and the exit end of five in one collecting tubule is connected with one end of U-tube, and the other end of U-tube is connected with one end of transition conduit, and the other end of transition conduit is connected with one end of the second journey boiler tube; The other end of the second journey boiler tube is connected with the one end across pipe, and the other end across pipe is connected with one end of the 3rd journey boiler tube;
The opening end of described first journey boiler tube is positioned at the top, and the opening end of described 3rd journey boiler tube is positioned at bottom;
Or the opening end of described first journey boiler tube is positioned at bottom, the opening end of described 3rd journey boiler tube is positioned at the top.
Five boiler tubes of described first journey boiler tube, the second journey boiler tube and the 3rd journey boiler tube are circular boiler tube.
Described five in one collecting tubule comprises five inlet ends and an exit end, and five inlet ends are all communicated with exit end;
Five boiler tubes in first journey boiler tube are connected with five inlet ends respectively, and exit end is connected with U-tube.
The internal diameter of every root boiler tube of described first journey boiler tube is φ 1, and the internal diameter of the second journey boiler tube is φ 2, and the internal diameter of the 3rd journey boiler tube is φ 3, and φ 1≤φ 2≤φ 3,40mm≤φ 1≤60mm, 90mm≤φ 2≤135mm, 90≤φ 3≤150mm.
Five boiler tubes, the second journey boiler tube of described first journey boiler tube are hung with the 3rd journey boiler tube is all vertical, and perpendicular to the center line of radiant heat zone.
Compared with prior art, the beneficial effects of the utility model are: the utility model has the feature of two journey 2-1 type boiler tubes compared with short residence time(SRT) and low pressure drop, there is again the feature that quadruple pass 2-1-1-1 type boiler tube throughput is larger, improve processing performance to a certain extent; The mode that three journey 5-1-1 type radiating furnace tubes can be taked material furnace bottom to enter furnace roof to go out, make to be arranged in the spring hanger system layout of furnace bottom, waste heat boiler and part boiler tube at furnace roof across pipe, add the handiness of furnace roof spatial arrangement, bring facility to engineering construction.
Accompanying drawing explanation
Two journey 2-1 type boiler tube configurations of Fig. 1 prior art
The quadruple pass 2-1-1-1 type boiler tube configuration of Fig. 2 prior art
Fig. 3 the utility model three journey 5-1-1 type boiler tube configuration.
1-first journey boiler tube; 2-second journey boiler tube; 3-the 3rd journey boiler tube; 4-quadruple pass boiler tube; 5-transition conduit; 6-Y type pipe; 7-five in one collecting tubule; 10-radiation section center line.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
The utility model 5-1-1 type radiating furnace tube is three journey boiler tubes, and the first journey boiler tube 1 is three boiler tubes, and the second journey boiler tube 2 and the 3rd journey boiler tube 3 are respectively a boiler tube, and boiler tube is all circular boiler tube.First journey boiler tube 1 is converged by five in one collecting tubule 7 and is connected with U-tube, and the second journey boiler tube 2 is connected with transition conduit 5 by U-tube.
First journey stove bore is φ 1, and the second journey boiler tube 2 internal diameter is φ 2, and the 3rd journey boiler tube 3 internal diameter is φ 3, and φ 1≤φ 2≤φ 3,40mm≤φ 1≤60mm, 90mm≤φ 2≤135mm, 90≤φ 3≤150mm.This radiating furnace tube is vertical hanging, and perpendicular to the center line 10 of radiant heat zone.
Particularly, in order to overcome the shortcoming of existing two journey 2-1 boiler tubes and quadruple pass 2-1-1-1 boiler tube, the utility model adopts three journey 5-1-1 type radiating furnace tubes, and radiating furnace tube material bottom in and top out, improves processing performance to a certain extent.
As shown in Figure 3, an embodiment is as follows: radiating furnace tube is three journey boiler tubes, the first journey Guan Weiwu root boiler tube, second and three journey boiler tube be respectively a boiler tube, and boiler tube is all circular boiler tube, radiating furnace tube material bottom in and top out.First journey stove bore is 50mm, and the second journey stove bore is 112mm, and the 3rd journey stove bore is 112mm.This radiating furnace tube is vertical hanging, and perpendicular to the center line of radiant heat zone.
The utility model provides a kind of ethane cracking furnace 5-1-1 type radiating furnace tube, it has the feature of two journey 2-1 type boiler tubes compared with short residence time(SRT) and low pressure drop, there is again the feature that quadruple pass 2-1-1-1 type boiler tube throughput is larger, improve processing performance to a certain extent; The mode that three journey 5-1-1 type radiating furnace tubes can be taked material furnace bottom to enter furnace roof to go out, namely the first journey boiler tube enters from bottom, 3rd journey pipe goes out from top, make to be arranged in the spring hanger system layout of furnace bottom, waste heat boiler and part boiler tube at furnace roof across pipe, add the handiness of furnace roof spatial arrangement, bring facility to engineering construction.
Technique scheme is several the most typical embodiment of the present utility model, for those skilled in the art, on the basis that the utility model discloses application method and principle, be easy to make various types of improvement or distortion, and the method be not limited only to described by the above-mentioned embodiment of the utility model, therefore previously described mode is just preferred, and does not have restrictive meaning.The utility model radiant coil can be used for newly-built pyrolyzer or carries out capacity expansion revamping to pyrolyzer.
Claims (5)
1. an ethane cracking furnace 5-1-1 type radiating furnace tube, is characterized in that: described ethane cracking furnace 5-1-1 type radiating furnace tube comprises the first journey boiler tube, the second journey boiler tube and the 3rd journey boiler tube;
Described first journey boiler tube comprises five boiler tubes, and the second journey boiler tube and the 3rd journey boiler tube comprise a boiler tube respectively;
One end of described first journey boiler tube is connected with the inlet end of five in one collecting tubule, and the exit end of five in one collecting tubule is connected with one end of U-tube, and the other end of U-tube is connected with one end of transition conduit, and the other end of transition conduit is connected with one end of the second journey boiler tube; The other end of the second journey boiler tube is connected with the one end across pipe, and the other end across pipe is connected with one end of the 3rd journey boiler tube;
The opening end of described first journey boiler tube is positioned at the top, and the opening end of described 3rd journey boiler tube is positioned at bottom;
Or the opening end of described first journey boiler tube is positioned at bottom, the opening end of described 3rd journey boiler tube is positioned at the top.
2. ethane cracking furnace 5-1-1 type radiating furnace tube according to claim 1, is characterized in that: five boiler tubes of described first journey boiler tube, the second journey boiler tube and the 3rd journey boiler tube are circular boiler tube.
3. ethane cracking furnace 5-1-1 type radiating furnace tube according to claim 2, is characterized in that: described five in one collecting tubule comprises five inlet ends and an exit end, and five inlet ends are all communicated with exit end;
Five boiler tubes in first journey boiler tube are connected with five inlet ends respectively, and exit end is connected with U-tube.
4. ethane cracking furnace 5-1-1 type radiating furnace tube according to claim 3, it is characterized in that: the internal diameter of every root boiler tube of described first journey boiler tube is φ 1, the internal diameter of the second journey boiler tube is φ 2, the internal diameter of the 3rd journey boiler tube is φ 3, and φ 1≤φ 2≤φ 3,40mm≤φ 1≤60mm, 90mm≤φ 2≤135mm, 90≤φ, 3≤150mm.
5., according to the arbitrary described ethane cracking furnace 5-1-1 type radiating furnace tube of Claims 1-4, it is characterized in that: five boiler tubes, the second journey boiler tube of described first journey boiler tube are hung with the 3rd journey boiler tube is all vertical, and perpendicular to the center line of radiant heat zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679734.2U CN204198685U (en) | 2014-11-07 | 2014-11-07 | A kind of ethane cracking furnace 5-1-1 type radiating furnace tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420679734.2U CN204198685U (en) | 2014-11-07 | 2014-11-07 | A kind of ethane cracking furnace 5-1-1 type radiating furnace tube |
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| Publication Number | Publication Date |
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| CN204198685U true CN204198685U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420679734.2U Active CN204198685U (en) | 2014-11-07 | 2014-11-07 | A kind of ethane cracking furnace 5-1-1 type radiating furnace tube |
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| Country | Link |
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| CN (1) | CN204198685U (en) |
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2014
- 2014-11-07 CN CN201420679734.2U patent/CN204198685U/en active Active
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