CN207797011U - A kind of tubular heater - Google Patents
A kind of tubular heater Download PDFInfo
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- CN207797011U CN207797011U CN201721333106.9U CN201721333106U CN207797011U CN 207797011 U CN207797011 U CN 207797011U CN 201721333106 U CN201721333106 U CN 201721333106U CN 207797011 U CN207797011 U CN 207797011U
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- radiation chamber
- burner
- ring body
- tubular heater
- wall
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Abstract
The utility model discloses a kind of tubular heaters, belong to heating furnace field.The tubular heater includes the chimney, convection cell, radiation chamber being from top to bottom sequentially connected to；Being horizontally disposed in convection cell has multiple convection coils；Multiple radiating furnace tubes are vertically arranged in radiation chamber；The bottom of radiation chamber is provided with multiple burners；There are one cyclones for setting in the bellows of each burner；For two adjacent burners, the corresponding cyclone of one of burner is used to form the combustion air rotated counterclockwise, and the corresponding cyclone of another burner is used to form the combustion air rotated clockwise.The utility model can make to generate one or more high-speed rotating high-temperature flue gas flow fields in radiation chamber, can not only increase convection current heat-transfer effect of the high-temperature flue gas to radiating furnace tube, also can avoid flame and contacted with radiating furnace tube, extend the service life of tubular heater；And being sufficiently mixed for fuel and combustion air can be promoted, burner excess air is reduced, the thermal efficiency is improved.
Description
Technical field
The utility model is related to heating furnace field, more particularly to a kind of tubular heater.
Background technology
Tubular heater is the fields such as petroleum refining, petrochemical industry widely used process heating furnace, with fuel oil or combustion gas
For fuel, the medium in boiler tube is heated to required temperature.Currently, being heated when to inflammable and explosive liquid or gas medium
When, generally use tubular heater is heated, and is allowed to generate reaction or is reached the requirement of subsequent technique.In order to ensure to medium
The efficiency of heating surface, it is necessary to a kind of tubular heater is provided.
Prior art offer has come a kind of tubular heater, such tubular heater：From top to bottom it is sequentially communicated
Chimney, convection cell, radiation chamber；Being horizontally disposed in convection cell has multiple convection coils；Multiple radiation are vertically arranged in radiation chamber
Boiler tube；The bottom of radiation chamber is provided with multiple burners.Wherein, as shown in Fig. 1, burner includes that side wall is provided with combustion-supporting sky
The bellows 601 of gas entrance 6011, the altar lamp 602 being separately positioned in bellows 601 and main fuel air gun 603.Its is worked
Cheng Wei：Fuel enters the top in bellows 601 through main fuel air gun 603, and air enters wind through combustion air inlet 6011
In case 601, when combustion air is mixed with top of the fuel in bellows 601, and lighted a fire using altar lamp 602, in wind
The outlet (i.e. the outlet of burner) of case 601 forms flame, and generates the high-temperature flue gas flowed straight up；The flame, high temperature
Flue gas mainly carries out radiant heat transfer to radiating indoor radiating furnace tube；Later, high-temperature flue gas is flowed into from radiation chamber in convection cell,
And convection coil is washed away with high flow velocities, convection current heat transfer is carried out to it；Later, the high-temperature flue gas be drained into air by chimney or
Into subsequent flue gas waste heat recovery system.
Designer has found that the existing technology has at least the following problems：
Since flame, high-temperature flue gas mainly carry out radiant heat transfer to radiating indoor radiating furnace tube, and high-temperature flue gas is to spoke
The energy for penetrating boiler tube progress convection current heat transfer is relatively low, reduces the utilization rate of firebox portion high-temperature flue gas heat.
Utility model content
To solve the above-mentioned problems, the utility model embodiment provides a kind of tubular heater.The technical solution is such as
Under：
A kind of tubular heater, including the chimney, convection cell, the radiation chamber that are from top to bottom sequentially connected to；
Being horizontally disposed in the convection cell has multiple convection coils；
Multiple radiating furnace tubes are vertically arranged in the radiation chamber；
The bottom of the radiation chamber is provided with multiple burners；
There are one cyclones for setting in the bellows of each burner；
For two adjacent burners, the corresponding cyclone of one of them described burner is used to form inverse
The combustion air of hour hands rotation, the corresponding cyclone of another described burner are used to form the combustion-supporting sky rotated clockwise
Gas.
In a kind of possible design, the cyclone includes：The eddy flow leaf of outer ring body, inner ring body and multiple plates
Piece；
The outer wall of the outer ring body is connect with the inner wall of the bellows；
The inner ring body is co-axially located at the inside of the outer ring body；
The swirl vane is quadrilateral structure, including top margin, bottom edge, first side and second side, first side
Side is connect with the inner wall of the outer ring body, and the second side is connect with the outer wall of the inner ring body；
Multiple swirl vanes are obliquely installed in same direction, and are uniformly distributed along the circumferential direction of the inner ring body.
In a kind of possible design, the first side of the swirl vane is welded on the inner wall of the outer ring body
On；The second side of the swirl vane is welded on the outer wall of the inner ring body.
In a kind of possible design, the radiation chamber is arranged to core structure, multiple burnings being arranged in array
Device is located at the intermediate position of the radiation chamber bottom；Multiple radiating furnace tubes are uniformly set along the circumferential direction of the radiation chamber
It sets between the burner and the radiation chamber interior walls.
In a kind of possible design, the radiation chamber is arranged to case structure, the bottom interval setting of the radiation chamber
There is multigroup burner assembly,
Burner assembly described in every group includes multiple burners being arranged in array；
The surrounding of burner assembly described in every group is evenly arranged with multiple radiating furnace tubes for being arranged into square structure.
The advantageous effect brought of technical solution that the utility model embodiment provides is：
The tubular heater that the utility model embodiment provides can by being provided with cyclone in the bellows of burner
Make combustion air do rotation in bellows to move upwards, so that the outlet of burner can form high-speed rotating flame, and
Its high-temperature flue gas generated is driven to form flue gas eddy flow field；In addition, by the way that the cyclone in two adjacent burners is formed
The flame in different rotary direction can increase high-temperature flue gas swirl strength.The structure of tubular heater is set in this way, on the one hand, by
It can quickly be rotated in flame, keep flame upright and outspoken strong, side is not floatd, and be can avoid flame and is contacted with radiating furnace tube surface, is extended
The service life of tubular heater；On the one hand, it is moved upwards since high-temperature flue gas can make rotation, which increase itself and all-radiant furnace
The flue gas flow rate of the not contact surface of ipsilateral is managed, and then increases its convection current heat-transfer effect to radiating furnace tube, makes radiation chamber
Interior high-temperature flue gas convection current heat transfer load proportion is enhanced to about 30% by conventional 10%, increases to high-temperature flue gas heat
Utilization rate and can realize the purposes of energy-saving and emission-reduction；On the other hand, rotary flame can promote filling for fuel and combustion air
Divide mixing, fuel can be made fully to burn under lower excess air coefficient, improve the thermal efficiency of tubular heater.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the burner that the prior art provides；
Fig. 2 is the structural schematic diagram for the tubular type knot hot stove that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram that the cyclone that the utility model embodiment provides is installed in burner internal；
Fig. 4 is a kind of stereoscopic schematic diagram for cyclone that the utility model embodiment provides；
Fig. 5 is a kind of side view for cyclone that the utility model embodiment provides；
Fig. 6 is a kind of side view for cyclone that the utility model embodiment provides；
Fig. 7 is the vertical view of the tubular type knot hot stove for the core structure that the utility model embodiment provides；
Fig. 8 is the vertical view of the tubular type knot hot stove for the case structure that the utility model embodiment provides.
Each label in attached drawing is illustrated below.
1- chimneys；
2- convection cells；
3- radiation chambers；
4- convection coils；
5- radiating furnace tubes；
6- burners；
601- bellows；
6011- combustion air inlets；
602- altar lamps；
603- main fuel air guns；
7- cyclones；
701- outer ring bodies；
702- inner ring bodies；
703- swirl vanes.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment provides a kind of tubular heater, as shown in Fig. 2, the tubular heater include by up to
Under the chimney 1, convection cell 2, the radiation chamber 3 that are sequentially connected to；Being horizontally disposed in convection cell 2 has multiple convection coils 4；In radiation chamber 3
It is vertically arranged with multiple radiating furnace tubes 5；The bottom of radiation chamber 3 is provided with multiple burners 6；In the bellows 601 of each burner 6
There are one cyclones 7 for setting (referring to Fig. 3)；For two adjacent burners 6,6 corresponding cyclone 7 of one of burner
It is used to form the combustion air rotated counterclockwise, another 6 corresponding cyclone 7 of burner is used to form helping of rotating clockwise
Fire air.
It should be noted that by the way that cyclone 7 is arranged in bellows 601, thus it is possible to vary fortune of the combustion air in bellows
Flowing mode, i.e., the motion mode of combustion air is moved upwards by straight line become rotation move upwards, the arrow generation in wherein Fig. 2
The table high-temperature flue gas direction of motion.
The operation principle of the tubular heater provided below with regard to the utility model embodiment is described：
First fuel is entered through main fuel air gun 603 in the bellows 601 of burner 6, combustion air by bellows 601 combustion
Air intake 6011 enters in bellows 601, due to being provided with cyclone 7 in bellows 601 so that combustion air is in bellows 601
It is middle rotation move ahead, when reach main fuel air gun 603 top when, burn with fuel, so the outlet of bellows 601 (i.e.
The outlet of burner 6) high-speed rotating flame is formed, and surrounding high-temperature flue gas is driven to form flue gas eddy flow field.The flame
Radiant heat transfer is carried out to radiating furnace tube 5, meanwhile, which does rotation around radiating furnace tube 5 and moves upwards, which increases
The flue gas flow rate of high-temperature flue gas and radiating furnace tube 5 not ipsilateral, and then its convection current heat-transfer effect to radiating furnace tube 5 is increased,
This not only adds the utilization rates to high-temperature flue gas heat, and can realize the purpose of energy-saving and emission-reduction.
Later, high-temperature flue gas is flowed into from radiation chamber 3 in convection cell 2, and washes away convection coil 4 with high flow velocities, to it
Carry out convection current heat transfer；Later, which is drained into air by chimney 1 or is entered subsequent flue gas waste heat recovery system.
For the tubular heater with multiple burners 6, when two burners 6 are disposed adjacent, wherein
One 6 corresponding cyclone 7 of burner is used to form the combustion air rotated counterclockwise, another 6 corresponding eddy flow of burner
Device 7 is used to form the combustion air rotated clockwise, can make 6 each self-forming different rotary direction of two neighboring burner in this way
Flame, and then the high-temperature flue gas eddy flow field respectively generated can be made to cooperate amplification, to improve high-temperature flue gas flow velocity and right
Radiating furnace tube 5 spreads thermal energy power.
The tubular heater that the utility model embodiment provides, by being provided with cyclone in the bellows 601 of burner 6
7, combustion air can be made to do rotation in bellows 601 and moved upwards so that the outlet of burner 6 can be formed it is high-speed rotating
Flame, and its high-temperature flue gas generated is driven to form flue gas eddy flow field；In addition, by by the rotation in two adjacent burners 6
The combustion air that device 7 forms different rotary direction is flowed, high-temperature flue gas swirl strength can be increased.The knot of tubular heater is set in this way
Structure, on the one hand, since flame can quickly be rotated, keep flame upright and outspoken strong, side is not floatd, and can avoid flame and radiating furnace tube 5
Surface contacts, and extends the service life of tubular heater；On the one hand, it is moved upwards since high-temperature flue gas can make rotation, this increasing
It is big its with radiating furnace tube 5 the not flue gas flow rate of the contact surface of ipsilateral, and then increase it to radiating furnace tube 5 to spreading
Thermal effect makes the heat transfer load proportion of the high-temperature flue gas convection current in radiation chamber 3 be enhanced to about 30% by conventional 10%, increases
Utilization rate to high-temperature flue gas heat and the purpose that can realize energy-saving and emission-reduction；On the other hand, rotary flame can promote to fire
Material is sufficiently mixed with combustion air, and fuel can be made fully to burn under lower excess air coefficient, improves tubular heater
The thermal efficiency.
Wherein, combustion air can be made to be done in bellows 601 there are many structures for the cyclone 7 that rotation moves upwards, mainly
It is that air guide structure is set in burner 6, combustion air is made to carry out rotational flow.For example, the utility model embodiment carries
A kind of cyclone 7 is supplied, as shown in figure 4, cyclone includes：The eddy flow leaf of outer ring body 701, inner ring body 702 and multiple plates
Piece 703；The outer wall of outer ring body 701 is connect with the inner wall of bellows 601；Inner ring body 702 is co-axially located at the inside of outer ring body 701；
Swirl vane 703 is quadrilateral structure, including top margin, bottom edge, first side and second side, first side and outer ring body 701
Inner wall connection, second side is connect with the outer wall of inner ring body 702；Multiple swirl vanes 703 are obliquely installed in same direction, and
Circumferential direction along inner ring body 702 is uniformly distributed.
Wherein, multiple swirl vanes 703 are uniformly distributed along the circumferential direction of inner ring body 702, refer to two neighboring swirl vane
Angle between 703 is identical.
It is understood that having vortex chamber between two neighboring swirl vane 703, which goes out with burner 7
Mouth communicates, and the outlet port of burner 7 can be made to form swirl flame.
The cyclone 7 of this kind of structure can be effectively formed counterclockwise or rotate clockwise ground flame, and also can effectively make combustion
The flame that burner 6 exports drives surrounding high-temperature flue gas to form flue gas eddy flow field.
It should be noted that the respective corresponding swirl vane 703 of two neighboring burner 7 is in 701 inner wall of outer ring body
Inclined direction is on the contrary, the swirl vane 703 corresponding to a burner 7 is inclined at outer ring body 701 in the direction of the clock
(referring to Fig. 5) on inner wall, the swirl vane 703 corresponding to another burner 7 is inclined at outer ring body counterclockwise
(referring to Fig. 6) on 701 inner wall.
The tubular heater that the utility model embodiment provides is suitable for various stove shapes, such as cylindrical furnace, case stove, accordingly
Ground, convection cell 2, radiation chamber 3 in tubular heater can also be arranged to various structures.The utility model embodiment is in order to improve pair
The heat convection effect of radiating furnace tube 5 corresponding to different structure radiation chamber 3, for the radiation chamber 3 of different structure, by burner
7 are adjusted with the position relationship of radiating furnace tube 5.
If as shown in fig. 7, radiation chamber 3 is arranged to core structure, multiple burners 7 being arranged in array are located at radiation chamber
The intermediate position of 3 bottoms；Multiple radiating furnace tubes 5 are uniformly arranged on burner 7 and radiation chamber 3 along the circumferential direction of radiation chamber 3
Between inner wall.
If as shown in figure 8, radiation chamber 3 is arranged to case structure, the bottom interval of radiation chamber 3 is provided with multigroup burner
Component, every group of burner assembly include multiple burners 7 being arranged in array；The surrounding of every group of burner assembly is evenly arranged with
Multiple radiating furnace tubes 5 for being arranged into square structure.
The setting of above two structure can improve 5 table of fire box temperature field unevenness and radiating furnace tube of tubular heater
The unequal degree of face calorific intensity.
The alternative embodiment that any combination forms the disclosure may be used, herein no longer in above-mentioned all optional technical solutions
It repeats one by one.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of tubular heater, including the chimney (1), convection cell (2), the radiation chamber (3) that are from top to bottom sequentially connected to；
Being horizontally disposed in the convection cell (2) has multiple convection coils (4)；
It is vertically arranged with multiple radiating furnace tubes (5) in the radiation chamber (3)；
The bottom of the radiation chamber (3) is provided with multiple burners (6)；
It is characterized in that, there are one cyclones (7) for setting in the bellows (601) of each burner (6)；
For two adjacent burners (6), the corresponding cyclone (7) of one of them described burner (6) is used for
The combustion air that rotates counterclockwise is formed, the corresponding cyclone (7) of another described burner (6) is used to form clockwise
The combustion air of rotation.
2. tubular heater according to claim 1, which is characterized in that the cyclone (7) includes：Outer ring body (701),
The swirl vane (703) of inner ring body (702) and multiple plates；
The outer wall of the outer ring body (701) is connect with the inner wall of the bellows (601)；
The inner ring body (702) is co-axially located at the inside of the outer ring body (701)；
The swirl vane (703) is quadrilateral structure, including top margin, bottom edge, first side and second side, first side
Side is connect with the inner wall of the outer ring body (701), and the second side is connect with the outer wall of the inner ring body (702)；
Multiple swirl vanes (703) are obliquely installed in same direction, and uniformly divide along the circumferential of the inner ring body (702)
Cloth.
3. tubular heater according to claim 2, which is characterized in that first side of the swirl vane (703)
While being welded on the inner wall of the outer ring body (701)；
The second side of the swirl vane (703) is welded on the outer wall of the inner ring body (702).
4. tubular heater according to claim 3, which is characterized in that the radiation chamber (3) is arranged to core structure, more
A burner (6) being arranged in array is located at the intermediate position of the radiation chamber (3) bottom；
Multiple radiating furnace tubes (5) are uniformly arranged on the burner (6) and institute along the circumferential direction of the radiation chamber (3)
It states between radiation chamber (3) inner wall.
5. tubular heater according to claim 3, which is characterized in that the radiation chamber (3) is arranged to case structure, institute
The bottom interval for stating radiation chamber (3) is provided with multigroup burner assembly,
Burner assembly described in every group includes multiple burners (6) being arranged in array；
The surrounding of burner assembly described in every group is evenly arranged with multiple radiating furnace tubes (5) for being arranged into square structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333106.9U CN207797011U (en) | 2017-10-17 | 2017-10-17 | A kind of tubular heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333106.9U CN207797011U (en) | 2017-10-17 | 2017-10-17 | A kind of tubular heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207797011U true CN207797011U (en) | 2018-08-31 |
Family
ID=63273875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721333106.9U Active CN207797011U (en) | 2017-10-17 | 2017-10-17 | A kind of tubular heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207797011U (en) |
-
2017
- 2017-10-17 CN CN201721333106.9U patent/CN207797011U/en active Active
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