CN201688694U - Tube-type heating furnace - Google Patents
Tube-type heating furnace Download PDFInfo
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- CN201688694U CN201688694U CN2010201486457U CN201020148645U CN201688694U CN 201688694 U CN201688694 U CN 201688694U CN 2010201486457 U CN2010201486457 U CN 2010201486457U CN 201020148645 U CN201020148645 U CN 201020148645U CN 201688694 U CN201688694 U CN 201688694U
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- radiation chamber
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- stalk
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Abstract
The utility model provides a tube-type heating furnace, which is characterized in that the furnace wall of a radiation chamber of the tube-type heating furnace comprises a radiation chamber straight wall (2) and a radiation chamber slanting wall (3); a furnace bottom combustor adopts a wall-attached flat flame combustor and is arranged below the radiation chamber in the position adjacent to the radiation chamber straight wall (2), and the radiation chamber slanting wall (3) is arranged above the radiation chamber in the position next to the radiation chamber straight wall (2); the height H of the radiation chamber straight wall (2) is 0.5 m to 5 m; and an included angle between the radiation chamber straight wall (2) and the radiation chamber slanting wall (2) is 41 DEG to 45 DEG. The radiation chamber adopts a stepped furnace combining the straight wall with the slanting wall and a wall-attached combustion structure matched with the furnace; therefore, compared with various domestic furnaces, the utility model has the characteristics that heat transmission of smoke gas is uniform in the height direction of the hearth box and perturbation motion of high-temperature smoke gas is tending uniform, thereby being favorable for reducing coking in the tube, prolonging the operation cycle of the heating furnace and further improving the economic benefit of the device.
Description
Technical field
The utility model belongs to petroleum refining and chemical industry equipment, a kind of heating furnace that is used for petroleum refining and chemical plant installations heating raw of more specifically saying so.
Background technology
Tubular heater is the nucleus equipment of refining and petrochemical processing units, and it has determined the operation cycle and the energy consumption level of whole device.
Prior art lying pipe heating furnace essential characteristic is seen Fig. 2, mainly comprises end burning burner 7, radiation chamber stalk 8, boiler tube 9, radiation chamber top flue 10, convection cell 11, has mainly contained 3 kinds of common type of furnaces at present:
(1) single side radiation batch-type furnace, radiation chamber furnace wall are the stalk structure, and boiler tube arranges that by furnace wall burner is positioned in the middle of the burner hearth, and flame and hot flue gas are the single side radiation heat transfer type to boiler tube.Single side radiation causes the circumferential nonuniformity coefficient of boiler tube to increase the inequality of being heated easily.
(2) two-sided radiation single chamber single tube journey batch-type furnace, the radiation chamber furnace wall is the stalk structure, boiler tube is arranged in the middle of the burner hearth, pipe row arranges burner in both sides, burner is positioned at furnace wall and boiler tube centre position, and flame and hot flue gas are two-sided radiant heat transfer mode to boiler tube, compares with the single side radiation tubular heater, the circumferential coefficient of uniformity of two-sided radiation tubular type heating furnace tube reduces circumferentially the being heated evenly property raising of single boiler tube.
(3) two-sided radiation multicell two-tube-pass batch-type furnace, the radiation chamber furnace wall is the stalk structure, boiler tube and burner arrangement mode are with two-sided radiation single chamber single tube journey batch-type furnace, the tailored radiation chamber is divided into two Room by wall with flues and arranges two grate furnace pipes, improved the treating capacity of tailored radiation chamber, but because two Room are not complete independence, flow of flue gas phase mutual interference separately, unfavorable to conducting heat.
More than three kinds of traditional tubular heater types, though characteristics are respectively arranged, because its radiation chamber furnace wall is the stalk structure, and burner all is arranged between furnace wall and the boiler tube, the high-temperature flue gas main body is conducted heat inhomogeneous along swinging in the furnace height direction uphill process obviously, making along the furnace height direction.While is owing to the restriction of aspect factors such as being constructed, adopt the end to burn burner mostly, there is local uneven phenomenon in the disturbance of flue gas in burner hearth, influence the uniformity of volume calorific intensity, make along short transverse and the heat absorption of length direction boiler tube uneven, the hot-spot phenomenon is obvious, and coking trend is obvious in the local pipe, has shortened the operation cycle of tubular heater.
The utility model content
The purpose of this utility model is by improved furnace type structure and adopts the attached wall burner that mates, improve flue gas conducts heat in the tubular heater uniformity, improve the boiler tube hot-spot and reduce coking in the pipe, improve boiler tube evenly heat intensity, improve tubular heater radiation chamber heat transfer efficiency, prolong the tubular heater operation cycle.
The purpose of this utility model realizes by adopting following technical scheme:
Tubular heater of the present utility model mainly comprises furnace bottom burner 1, radiation chamber, boiler tube 4, radiation chamber top flue 5, convection cell 6, it is characterized in that:
The tubular heater radiation chamber furnace wall of being chatted is combined by radiation chamber stalk 2 and radiation chamber sloping core 3; It is the flat flame burner of attached wall that furnace bottom burns burner 1;
Described furnace bottom burn burner 1 below radiation chamber near radiation chamber stalk 2, radiation chamber sloping core 3 be right after radiation chamber stalk 2 above; Radiation chamber stalk 2 height H are 0.5～5m, and angle theta is 1～45 ° between radiation chamber sloping core 3 and the radiation chamber stalk 2.
In concrete enforcement, the angle [alpha] of the attached wall of described furnace bottom burner 1 flat flame burner spray orifice 7 cross sections and radiation chamber stalk 2 is 1～45 °, and furnace bottom burner 1 center line and radiation chamber stalk 2 distance D are 0.05～0.8m;
Described radiation chamber is that single chamber or multicell are arranged side by side;
Described radiation chamber top flue 5 is located at the radiation chamber top, and flue gas advances convection cell 6 through described radiation chamber top flue 5.
Say that more specifically this tubular heater is characterised in that: the tubular heater radiation chamber furnace wall of being chatted is combined by one section radiation chamber stalk 2 and one section radiation chamber sloping core 3.It is to adopt the attached wall burning structures that furnace bottom burns burner 1, and the direct attached wall of high-temperature flue gas flows.Because the ladder type of furnace that radiation chamber adopts stalk to combine with sloping core, make radiation chamber reduce gradually along furnace height director space volume, improve the volume calorific intensity of radiation chamber upper area flue gas, the sloping core structure on while radiation chamber top, make the top flue gas flow to the boiler tube zone gradually, strengthen the heat convection between boiler tube and the flue gas, improved the heat absorption intensity of radiation chamber internal upper part boiler tube.Adopt the flat flame gas burner of attached wall that is complementary with the above-mentioned type of furnace, the stable attached wall of high-temperature flue gas is flowed, form stable smoke backflow zone between burner and the boiler tube, reduce the flue gas bias current, make the top and the bottom boiler tube obtain uniform radiant heat density.Flue gas is helped reducing to export flow of flue gas to radiation chamber flow of flue gas disturbing influence by the design that the radiation chamber top goes out radiation chamber.
Effect of the present utility model is: the novel furnace of the tubular heater radiation chamber compound section of optimization can make in the burner hearth and be tending towards evenly along the heat transfer of short transverse flue gas, and the design that the setting of the flat flame burner of attached wall and high-temperature flue gas are left by the radiation chamber top makes flue gas disturbance in burner hearth be tending towards even.
These characteristics makes the operating characteristic of tubular heater meet the requirement of oil-refining chemical technology to heating furnace more.Reduce the hot-spot of boiler tube, the evenly heat intensity of raising boiler tube, help the slow down coking tendency, prolong the furnace operation cycle, and then improve the economic benefit of device.
Description of drawings
Fig. 1 structural representation of the present utility model
Fig. 2 tradition type of furnace structural representation
Fig. 3 attached wall burner structure schematic diagram
Fig. 4 furnace wall structure schematic diagram
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model, shown in Fig. 1,3 and 4:
This novel pipe heating furnace mainly comprises the flat flame burner 1 of attached wall, radiation chamber stalk 2, radiation chamber sloping core 3, boiler tube 4, radiation chamber top flue 5, convection cell 6, it is characterized in that: burning burner 1 at the bottom of the novel pipe heating furnace of being chatted is to adopt attached wall burning structures (see figure 2), the angle [alpha] of burner spray orifice 7 cross sections and radiation chamber stalk 2 is controlled at 1～45 °, burner center line and radiation chamber stalk 2 distance D are controlled at 0.05～0.8m, and the direct attached wall of high-temperature flue gas flows; The radiation chamber furnace wall adopts the combining structure (see figure 3) of radiation chamber stalk 2 and radiation chamber sloping core 3, radiation chamber stalk 2 height H are controlled at 0.5～5m, angle theta is controlled at 1～45 ° between radiation chamber sloping core 3 and the radiation chamber stalk 2, improves the volume calorific intensity of radiation chamber top flue gas; Radiation chamber top flue 5 is located at the radiation chamber top, helps reducing to export the disturbance of flow of flue gas to the radiation chamber flow of flue gas.
Claims (6)
1. a tubular heater comprises furnace bottom burner (1), radiation chamber, boiler tube (4), radiation chamber top flue (5), convection cell (6), it is characterized in that:
The tubular heater radiation chamber furnace wall of being chatted is combined by radiation chamber stalk (2) and radiation chamber sloping core (3); It is the flat flame burner of attached wall that furnace bottom burns burner (1).
2. novel pipe heating furnace according to claim 1 is characterized in that:
Described furnace bottom burns burner (1) close radiation chamber stalk (2) below radiation chamber, and radiation chamber sloping core (3) is in the top that is right after radiation chamber stalk (2); Radiation chamber stalk (2) height H is 0.5～5m, and angle theta is 1～45 ° between radiation chamber sloping core (3) and the radiation chamber stalk (2).
3. novel pipe heating furnace according to claim 1 is characterized in that:
Flat flame burner spray orifice (7) cross section of described furnace bottom burner (1) and the angle [alpha] of radiation chamber stalk (2) are 1～45 °, and furnace bottom burns burner (1) center line and radiation chamber stalk (2) distance D is 0.05～0.8m.
4. novel pipe heating furnace according to claim 1 is characterized in that:
Described radiation chamber is that single chamber or multicell are arranged side by side.
5. novel pipe heating furnace according to claim 1 is characterized in that:
Described radiation chamber top flue (5) is located at the radiation chamber top, and flue gas advances convection cell (6) through described radiation chamber top flue (5).
6. novel pipe heating furnace according to claim 3 is characterized in that:
Described radiation chamber is that single chamber or multicell are arranged side by side;
Described radiation chamber top flue (5) is located at the radiation chamber top, and flue gas advances convection cell (6) through described radiation chamber top flue (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201486457U CN201688694U (en) | 2010-04-02 | 2010-04-02 | Tube-type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201486457U CN201688694U (en) | 2010-04-02 | 2010-04-02 | Tube-type heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201688694U true CN201688694U (en) | 2010-12-29 |
Family
ID=43376974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201486457U Expired - Lifetime CN201688694U (en) | 2010-04-02 | 2010-04-02 | Tube-type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201688694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968411A (en) * | 2013-02-06 | 2014-08-06 | 中国石油化工集团公司 | Smoke deflection preventer for gantry industrial furnaces |
| CN104560114A (en) * | 2013-10-29 | 2015-04-29 | 中国石油化工股份有限公司 | Ethylene cracking furnace of double-section heat supply structure |
-
2010
- 2010-04-02 CN CN2010201486457U patent/CN201688694U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968411A (en) * | 2013-02-06 | 2014-08-06 | 中国石油化工集团公司 | Smoke deflection preventer for gantry industrial furnaces |
| CN103968411B (en) * | 2013-02-06 | 2016-03-16 | 中国石油化工集团公司 | A kind of fume bias flow resistant device of gate industrial furnace |
| CN104560114A (en) * | 2013-10-29 | 2015-04-29 | 中国石油化工股份有限公司 | Ethylene cracking furnace of double-section heat supply structure |
| CN104560114B (en) * | 2013-10-29 | 2016-06-22 | 中国石油化工股份有限公司 | A kind of pair of section supplies the ethane cracking furnace of heat structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Sinopec Engineering Incorporation Patentee after: China Petrochemical Group Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Engrg Construction Co., SINOPEC Patentee before: China Petrochemical Group Corp. |
|
| ASS | Succession or assignment of patent right |
Owner name: SINOPEC ENGINEERING INCORPORATION Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130117 Free format text: FORMER OWNER: SINOPEC ENGINEERING INCORPORATION Effective date: 20130117 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100728 CHAOYANG, BEIJING TO: 100101 CHAOYANG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130117 Address after: Anhui Beili Anyuan 21 No. 100101 Beijing Chaoyang District City Patentee after: Sinopec Engineering Incorporation Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Engineering Incorporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |