CN204006643U - hot-blast stove - Google Patents
hot-blast stove Download PDFInfo
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- CN204006643U CN204006643U CN201420378273.5U CN201420378273U CN204006643U CN 204006643 U CN204006643 U CN 204006643U CN 201420378273 U CN201420378273 U CN 201420378273U CN 204006643 U CN204006643 U CN 204006643U
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Abstract
The utility model discloses a kind of hot-blast stove, comprising: body of heater; Three-way pipe, three-way pipe comprises the mixed Secondary Air inlet tube of converting that one end is communicated with body of heater, the combustion-supporting wind inlet tube that the main air inlet tube being communicated with the mixed other end of converting Secondary Air inlet tube and one end are communicated with main air inlet tube; Be arranged in three-way pipe, for regulating a combustion-supporting wind inlet tube and the mixed tune windshield plate of converting the air-out flow ratio of Secondary Air inlet tube; Burner, body of heater inside is located in the combustion chamber of burner, and the length of combustion chamber is less than the length of body of heater and is arranged at the front side of body of heater, and body of heater rear side forms to mix converts chamber, and a combustion-supporting wind inlet tube other end is communicated with the combustion air arrival end of burner; Dividing plate, is arranged between outer wall of combustion chamber and inboard wall of furnace body and mixed and converts between Secondary Air inlet tube and a combustion-supporting wind inlet tube other end; Main air outlet, main air outlet is communicated with the mixed chamber of converting.The hot-blast stove that the utility model provides, reduces the pressure drop of normal operation period, reduces the energy consumption of system.
Description
Technical field
The utility model relates to refining equipment technical field, particularly a kind of hot-blast stove.
Background technology
At present, energy conservation target is very severe.And the evolution along with catalytic cracking technology in petrochemical industry improves the energy-saving and cost-reducing selection that is also inevitable.
In catalytic unit reaction regeneration main air system, the Main Function of hot-blast stove is as follows:
In main air air heat process (installing between under-stream period), utilize the heat release of hot-blast stove gas burner fuel combustion, the air feed of 180 ℃ of left and right that main air blower is provided is conveyed into hot-blast stove, after being heated into the hot blast of 600～800 ℃, export, and enter catalytic regenerator, to reach the effect to catalytic unit two device system bakers and pre-heating temperature elevation.And during the normal production run of device (being in non-heating process), the burner in hot-blast stove is in shut down condition, hot-blast stove only plays the effect of main air passage, does not play heat effect.
Current hot-blast stove (being also auxiliary combustion chamber) is between under-stream period, a combustion-supporting wind air capacity and mixed to convert Secondary Air air capacity ratio certain, a combustion-supporting wind air flow channel and mixed to convert Secondary Air air flow channel be runner in parallel, , both pressure drops equate, mixed, install guide vane additional before converting import, mixed convert air mixed converted import and taper reducing is set to improve the mixed mixed uniformity of converting of converting air and flue gas, , pass through said structure, burner high pressure drop combustion efficiency while having caused start up, and during the normal production run of device, main air air is through a combustion-supporting wind air flow channel in parallel and mixedly convert Secondary Air air flow channel and enter, by mixed, convert the makeup of the imports and affect, form the mutual collision of air stream, whole main air pressure drop is bigger than normal, cause main air pressure drop loss, caused the macro-energy loss of catalysis main air blower long-term operation, thereby increased the energy consumption of whole catalysis system.
Therefore, how reducing the pressure drop during the normal production run of device, reduce the energy consumption of whole catalysis system, is the art personnel problem demanding prompt solutions.
Utility model content
In view of this, the utility model provides a kind of hot-blast stove, to reduce the pressure drop during the normal production run of device, reduces the energy consumption of whole catalysis system.
For achieving the above object, the utility model provides following technical scheme:
A hot-blast stove, comprising:
Body of heater;
Three-way pipe, described three-way pipe comprises the mixed Secondary Air inlet tube of converting that one end is communicated with described body of heater, the combustion-supporting wind inlet tube that the main air inlet tube being communicated with the described mixed other end of converting Secondary Air inlet tube and one end are communicated with described main air inlet tube;
Be arranged in described three-way pipe, for regulating a described combustion-supporting wind inlet tube and the described mixed tune windshield plate of converting the air-out flow ratio of Secondary Air inlet tube;
Burner, it is inner that the combustion chamber of described burner is sheathed on described body of heater, the length of described combustion chamber is less than the length of described body of heater and is arranged at described body of heater front side, described body of heater rear side forms described mixing and converts chamber, and the other end of a described combustion-supporting wind inlet tube is communicated with the combustion air arrival end of described burner;
Dividing plate, is arranged between the outer wall of described combustion chamber and the inwall of described body of heater and described mixed converting between Secondary Air inlet tube and the other end of a described combustion-supporting wind inlet tube;
Main air outlet, described main air outlet is communicated with the described mixed chamber of converting.
Preferably, in above-mentioned hot-blast stove, described tune windshield plate is arranged at described main air inlet tube and described mixed converting between Secondary Air inlet tube, and the diameter D of described main air inlet tube is more than or equal to the diameter D1 of a described combustion-supporting wind inlet tube and is less than or equal to the described mixed diameter D2 that converts Secondary Air inlet tube.
Preferably, in above-mentioned hot-blast stove, D1/D=0.4～1.0, D2/D=1.0～1.3.
Preferably, in above-mentioned hot-blast stove, described in being arranged at, described combustion chamber states body of heater near a described mixed side of converting Secondary Air inlet tube;
Described dividing plate forms the mixed Secondary Air runner of converting towards described mixed chamber one side and the outer wall of described combustion chamber and the inwall of described body of heater converted, and the described mixed Secondary Air runner of converting is converted Secondary Air inlet tube and is communicated with described mixing.
Preferably, in above-mentioned hot-blast stove, the circulation area of described main air inlet tube is f, and the described mixed circulation area of converting Secondary Air runner is f1, and the described mixed mixed circulation area of converting Secondary Air outlet of converting Secondary Air runner is f2; Wherein, f1/f=1.0～1.2; F2 >=f.
Preferably, in above-mentioned hot-blast stove, the described mixed angle of converting between Secondary Air outlet and described body of heater is α, wherein, and 10 °≤α≤90 °.
Preferably, in above-mentioned hot-blast stove, the described mixed link of converting Secondary Air inlet tube and described body of heater is provided with catch near a side of described dividing plate, and opposite side is provided with fillet.
Preferably, in above-mentioned hot-blast stove, the center line of the entrance of a described combustion-supporting wind inlet tube is mutually vertical with the center line of the described mixed entrance of converting Secondary Air inlet tube, and the described mixed center line of converting the entrance of Secondary Air inlet tube overlaps with the center line of described main air inlet tube.
Preferably, in above-mentioned hot-blast stove, it is vertical that described main air outlet is arranged at the top of described body of heater and the center line of described main air outlet and the center line of described body of heater.
Preferably, in above-mentioned hot-blast stove, described main air outlet is arranged at the afterbody of described body of heater and the center line of described main air outlet and the center line of described body of heater and overlaps; Described main air outlet is right-angle elbow pipe, and the port of export of described main air outlet upward.
Preferably, in above-mentioned hot-blast stove, described main air outlet is right-angle elbow pipe, and the port of export of described main air outlet upward.
From above-mentioned technical scheme, can find out, the hot-blast stove that the utility model provides, by regulating a combustion-supporting wind inlet tube and the mixed air-out flow ratio of converting Secondary Air inlet tube, make hot-blast stove in the stage, meet the different air intake demand in Ji Hundui chamber, combustion chamber at different operating, reach working condition requirement.That is, in main air air heat process, meet the demand that is entered the gas flow that combustion chambers burn produces by a combustion-supporting wind inlet tube so that with by mixed, convert gas that Secondary Air inlet tube enters and mix in converting chamber mixed; And at normal operation period, main air air is all directly entered and mixedly converted chamber by the mixed Secondary Air inlet tube of converting, reduced pressure drop.The hot-blast stove that the utility model provides, effectively reduces the pressure drop of device during normal production run, and then has reduced the energy loss of main air blower, and then effectively reduces the energy consumption of whole catalysis system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The first structural representation of the hot-blast stove that Fig. 1 provides for the utility model embodiment;
The first structural representation of the three-way pipe that Fig. 2 provides for the utility model embodiment;
The second structural representation of the three-way pipe that Fig. 3 provides for the utility model embodiment;
The second structural representation of the hot-blast stove that Fig. 4 provides for the utility model embodiment.
Wherein,
Body of heater-1, burner-2, combustion-supporting wind inlet tube-3, adjust windshield plate-4, main air inlet tube-5, mix and convert Secondary Air inlet tube-6, combustion chamber-7, mixed Secondary Air runner-8 of converting, mixed Secondary Air outlet-9, mixed chamber-10, main air outlet-11, dividing plate-12 of converting of converting.
The specific embodiment
The utility model discloses a kind of hot-blast stove, reduce the pressure drop during the normal production run of device, reduce the energy consumption of whole catalysis system.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the first structural representation of the hot-blast stove that Fig. 1 provides for the utility model embodiment; The first structural representation of the three-way pipe that Fig. 2 provides for the utility model embodiment; The second structural representation of the three-way pipe that Fig. 3 provides for the utility model embodiment.
The utility model embodiment provides a kind of hot-blast stove, comprising: body of heater 1; Three-way pipe, three-way pipe comprises the mixed Secondary Air inlet tube 6 of converting that one end is communicated with body of heater 1, the combustion-supporting wind inlet tube 3 that the main air inlet tube 5 being communicated with the mixed other end of converting Secondary Air inlet tube and one end are communicated with main air inlet tube 5; Be arranged in three-way pipe, for regulating a combustion-supporting wind inlet tube 3 and the mixed tune windshield plate 4 of converting the air-out flow ratio of Secondary Air inlet tube 6; Burner 2, the combustion chamber 7 of burner 2 is sheathed on body of heater 1 inside, the length of combustion chamber 7 is less than the length of body of heater 1 and is arranged at the front side of body of heater 1, and the rear side of body of heater 1 forms to mix converts chamber 10, and the other end of a combustion-supporting wind inlet tube 3 is communicated with the combustion air arrival end of burner 2; Dividing plate 12, is arranged between the outer wall of combustion chamber 7 and the inwall of body of heater 1 and mixed and converts between Secondary Air inlet tube 6 and the other end of a combustion-supporting wind inlet tube 3; Main air outlet 11, main air outlet 11 is converted chamber 10 and is communicated with mixed.
The hot-blast stove that the utility model embodiment provides is in main air air heat process, and main air air enters hot-blast stove by main air inlet tube 5.By adjusting, adjust windshield plate 4, make main air air flow into respectively a combustion-supporting wind inlet tube 3 and the mixed Secondary Air inlet tube 6 of converting by certain flow ratio; The combustion air arrival end of the air that enters a combustion-supporting wind inlet tube 3 by burner 2 enters combustion chamber 7 and enters the mixed chamber 10 of converting with mixed the converting after burning generates high-temperature flue gas of fuel, the mixed Secondary Air air of converting directly enters the mixed chamber 10 of converting, and mixed gas flows out by main air outlet 11.And at normal operation period, close burner 2, and by adjusting, adjust windshield plate 4, make main air air all by the mixed Secondary Air inlet tube 6 of converting, enter the mixed chamber 10 of converting, then flow out by main air outlet 11.
The hot-blast stove that the utility model embodiment provides, by regulating a combustion-supporting wind inlet tube 3 and the mixed air-out flow ratio of converting Secondary Air inlet tube 6, make hot-blast stove in the stage, meet combustion chamber 7 and mix and convert the different air intake demand in chamber 10 at different operating, reach working condition requirement.That is, in main air air heat process, meet the demand that is entered the gas flow that combustion chamber 7 burnings produce by a combustion-supporting wind inlet tube 3 so that with by mixed, convert gas that Secondary Air inlet tube 6 enters and mix in converting chamber 10 mixed; And at normal operation period, main air air is all directly entered and mixedly converted chamber 10 by the mixed Secondary Air inlet tube 6 of converting, thereby reduced pressure drop.The hot-blast stove that the utility model embodiment provides, effectively reduces the pressure drop of device during normal production run, and then has reduced the energy loss of main air blower, and then effectively reduces the energy consumption of whole catalysis system.
Further, adjust windshield plate 4 to be arranged at main air inlet tube 5 and mixed converting between Secondary Air inlet tube 6, the diameter D of main air inlet tube 5 is more than or equal to the diameter D1 of a combustion-supporting wind inlet tube 3 and is less than or equal to the mixed diameter D2 that converts Secondary Air inlet tube 6.
In main air air heat process, adjust windshield plate 4 to move to the direction of closing, the mixed incoming air area of converting Secondary Air inlet tube 6 is reduced, form aditus laryngis, make main air air flow into respectively a combustion-supporting wind inlet tube 3 and the mixed Secondary Air inlet tube 6 of converting by certain flow ratio; The combustion air arrival end of the air that enters a combustion-supporting wind inlet tube 3 by burner 2 enters combustion chamber 7 and enters the mixed chamber 10 of converting with mixed the converting after burning generates high-temperature flue gas of fuel, the mixed Secondary Air air of converting directly enters and mixedly converts chamber 10, and mixed gas enters regenerator by main air outlet 11.And at normal operation period, close burner 2, adjust windshield plate 4 standard-sized sheets, at this moment, because the diameter D of main air inlet tube 5 is greater than the diameter D1 of a combustion-supporting wind inlet tube 3 and is less than the mixed diameter D2 that converts Secondary Air inlet tube 6, avoid the mixed Secondary Air inlet tube 6 of converting to form aditus laryngis with the junction of body of heater 1, make main air air almost all by Secondary Air inlet tube 6, directly enter the mixed chamber 10 of converting, then flow out by main air outlet 11.
Also can will adjust windshield plate 4 to be arranged at the link of main air inlet tube 5 and a combustion-supporting wind inlet tube 3, the diameter D of main air inlet tube 5 be more than or equal to the diameter D1 of a combustion-supporting wind inlet tube 3 and be less than or equal to the mixed diameter D2 that converts Secondary Air inlet tube 6.Principle is the same, at this, introduces no longer in detail.
Wherein, be understandable that, adjust windshield plate 4 to adopt general cigarette (wind) road baffle plate, be arranged on main air inlet tube 5 and mixed converting between Secondary Air inlet tube 6, thereby be convenient to safeguard to change, and can effectively avoid the generation of the high-frequency vibration accident that produces because baffle plate is asymmetric.
Preferably, the diameter D of main air inlet tube 5, the span of the ratio between the diameter D1 of a combustion-supporting wind inlet tube 3 and the mixed diameter D2 that converts Secondary Air inlet tube 6 be: D1/D=0.4～1.0, D2/D=1.0～1.3
As shown in Figure 1, combustion chamber 7 is arranged at and states body of heater 1 near a mixed side of converting Secondary Air inlet tube 6; Dividing plate 12 is converted the outer wall of chamber 10 1 sides and combustion chamber 7 and the inwall of body of heater 1 forms the mixed Secondary Air runner 8 of converting towards mixed, and the mixed Secondary Air runner 8 of converting is converted Secondary Air inlet tube 6 and is communicated with mixing.Air is converted Secondary Air inlet tube 6 and is entered by mixed, under the mixed guide functions of converting Secondary Air runner 8, enters the mixed chamber 10 of converting.
Preferably, the circulation area of main air inlet tube 5 is f, and the mixed circulation area of converting Secondary Air runner 8 is f1, and the mixed mixed circulation area of converting Secondary Air outlet 9 of converting Secondary Air runner 8 is f2; Wherein, f1/f=1.0～1.2; F2 >=f.
In order to ensure the mixed effect of converting, the mixed angle of converting between Secondary Air outlet 9 and body of heater 1 is α, wherein, and 10 °≤α≤90 °.As shown in Figure 1, gas after a combustion-supporting wind inlet tube 3 enters combustion chamber 7 heating flows into the mixed chamber 10 of converting along the direction that is parallel to body of heater 1, and along mixed converting Secondary Air inlet tube 6, the mixed mobile air of Secondary Air runner 8 of converting flows into the angle of angle α and mixedly converts chamber 10 under mixed guiding of converting Secondary Air outlet 9, has effectively improved the mixed effect of converting.
The mixed link of converting Secondary Air inlet tube 6 and body of heater 1 is provided with catch near a side of dividing plate 12, and opposite side is provided with fillet.By above-mentioned setting, greatly reduce air and enter the resistance mixing while converting Secondary Air runner 8, and then reduced the pressure drop at this place.
In order to make normal operation period, main air air can enter the mixed chamber 10 of converting by the mixed Secondary Air inlet tube 6 of converting more completely, the center line of the entrance of a combustion-supporting wind inlet tube 3 is mutually vertical with the center line that mixes the entrance of converting Secondary Air inlet tube 6, and the mixed center line of converting the entrance of Secondary Air inlet tube 6 overlaps with the center line of main air inlet tube 5.
Wherein, as shown in Figures 2 and 3, a combustion-supporting wind inlet tube 3 can be arranged at the left side of main air inlet tube 5 or the right side of main air inlet tube 5, at this, introduces no longer one by one.
As shown in Figure 1, in the first embodiment, main air outlet 11 is arranged at the top of body of heater 1 and the center line of main air outlet 11 is vertical with the center line of body of heater 1.
As shown in Figure 4, in the second embodiment, the main air outlet 11 of hot-blast stove is arranged at the afterbody of body of heater 1 and the center line of main air outlet 11 overlaps with the center line of body of heater 1; Main air outlet 11 is right-angle elbow pipe, and the port of export of main air outlet 11 upward.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a hot-blast stove, is characterized in that, comprising:
Body of heater (1);
Three-way pipe, described three-way pipe comprises the mixed Secondary Air inlet tube (6) of converting that one end is communicated with described body of heater (1), the combustion-supporting wind inlet tube (3) that the main air inlet tube (5) being communicated with the described mixed other end of converting Secondary Air inlet tube and one end are communicated with described main air inlet tube (5);
Be arranged in described three-way pipe, for regulating a described combustion-supporting wind inlet tube (3) and the described mixed tune windshield plate (4) of converting the air-out flow ratio of Secondary Air inlet tube (6);
Burner (2), the combustion chamber (7) of described burner (2) is sheathed on described body of heater (1) inside, the length of described combustion chamber (7) is less than the length of described body of heater (1) and is arranged at the front side of described body of heater (1), rear side in described body of heater (1) forms described mixing and converts chamber (10), and the other end of a described combustion-supporting wind inlet tube (3) is communicated with the combustion air arrival end of described burner (2);
Dividing plate (12), is arranged between the outer wall of described combustion chamber (7) and the inwall of described body of heater (1) and is positioned at described mixed converting between Secondary Air inlet tube (6) and the other end of a described combustion-supporting wind inlet tube (3);
Main air outlet (11), described main air outlet (11) mixed converted chamber (10) and is communicated with described.
2. hot-blast stove as claimed in claim 1, it is characterized in that, described tune windshield plate (4) is arranged at described main air inlet tube (5) and described mixed converting between Secondary Air inlet tube (6), and the diameter D of described main air inlet tube (5) is more than or equal to the diameter D1 of a described combustion-supporting wind inlet tube (3) and is less than or equal to the described mixed diameter D2 that converts Secondary Air inlet tube (6).
3. hot-blast stove as claimed in claim 2, is characterized in that, D1/D=0.4～1.0, D2/D=1.0～1.3.
4. hot-blast stove as claimed in claim 1, is characterized in that, described combustion chamber (7) are arranged at described body of heater (1) near a described mixed side of converting Secondary Air inlet tube (6);
Described dividing plate (12) forms the mixed Secondary Air runner (8) of converting towards the outer wall of described burner one side and described combustion chamber (7) and the inwall of described body of heater (1), and the described mixed Secondary Air runner (8) of converting is converted Secondary Air inlet tube (6) and is communicated with described mixing.
5. hot-blast stove as claimed in claim 4, it is characterized in that, the circulation area of described main air inlet tube (5) is f, the described mixed circulation area of converting Secondary Air runner (8) is f1, and the described mixed mixed circulation area of converting Secondary Air outlet (9) of converting Secondary Air runner (8) is f2; Wherein, f1/f=1.0～1.2; F2 >=f.
6. hot-blast stove as claimed in claim 5, is characterized in that, the described mixed angle of converting between Secondary Air outlet (9) and described body of heater (1) is α, wherein, and 10 °≤α≤90 °.
7. hot-blast stove as claimed in claim 1, is characterized in that, the described mixed link of converting Secondary Air inlet tube (6) and described body of heater (1) is provided with catch near a side of described dividing plate (12), and opposite side is provided with fillet.
8. hot-blast stove as claimed in claim 2, it is characterized in that, the center line of the entrance of a described combustion-supporting wind inlet tube (3) is mutually vertical with the center line of the described mixed entrance of converting Secondary Air inlet tube (6), and the described mixed center line of converting the entrance of Secondary Air inlet tube (6) overlaps with the center line of described main air inlet tube (5).
9. the hot-blast stove as described in claim 1-8 any one, it is characterized in that, described main air outlet (11) is arranged at the top of described body of heater (1) and the center line of described main air outlet (11) is vertical with the center line of described body of heater (1).
10. the hot-blast stove as described in claim 1-8 any one, it is characterized in that, described main air outlet (11) is arranged at the afterbody of described body of heater (1) and the center line of described main air outlet (11) overlaps with the center line of described body of heater (1); Described main air outlet (11) is right-angle elbow pipe, and the port of export of described main air outlet (11) upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378273.5U CN204006643U (en) | 2014-07-09 | 2014-07-09 | hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420378273.5U CN204006643U (en) | 2014-07-09 | 2014-07-09 | hot-blast stove |
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| Publication Number | Publication Date |
|---|---|
| CN204006643U true CN204006643U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420378273.5U Active CN204006643U (en) | 2014-07-09 | 2014-07-09 | hot-blast stove |
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| CN (1) | CN204006643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014074A (en) * | 2017-06-06 | 2017-08-04 | 洛阳瑞昌石油化工设备有限公司 | A kind of low pressure drop axial gas heating furnace |
-
2014
- 2014-07-09 CN CN201420378273.5U patent/CN204006643U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014074A (en) * | 2017-06-06 | 2017-08-04 | 洛阳瑞昌石油化工设备有限公司 | A kind of low pressure drop axial gas heating furnace |
| CN107014074B (en) * | 2017-06-06 | 2023-03-24 | 洛阳瑞昌环境工程有限公司 | Low pressure drop axial-flow type gas heating furnace |
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