CN219674281U - Device for independently adjusting secondary air volume and rotation of outside-opposite-impact cyclone burner - Google Patents
Device for independently adjusting secondary air volume and rotation of outside-opposite-impact cyclone burner Download PDFInfo
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- CN219674281U CN219674281U CN202320528124.1U CN202320528124U CN219674281U CN 219674281 U CN219674281 U CN 219674281U CN 202320528124 U CN202320528124 U CN 202320528124U CN 219674281 U CN219674281 U CN 219674281U
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- secondary air
- air pipe
- pipe
- air inlet
- air
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- 238000002485 combustion reaction Methods 0.000 claims description 13
- 230000006978 adaptation Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses an external secondary air volume and rotation degree independently adjustable device of a hedging cyclone burner, which comprises a cyclone burner body, wherein the cyclone burner body comprises a central air pipe, a primary air pipe sleeved outside the central air pipe, a secondary air pipe sleeved outside the primary air pipe and a tertiary air pipe sleeved outside the secondary air pipe, an external secondary air channel is arranged between the secondary air pipe and the tertiary air pipe, an external secondary air inlet communicated with the external secondary air channel is arranged on the outer wall of the external secondary air channel, an opening of the external secondary air inlet is arranged in a direction far away from the axis of the tertiary air pipe, and an air volume adjusting sleeve which is matched with the external secondary air inlet and is used for adjusting the opening of the external secondary air inlet is sleeved outside the external secondary air inlet. According to the utility model, the control rod is arranged to control the axial movement of the air quantity adjusting sleeve, so that the air quantity of the outer secondary air inlet is controlled, the corresponding air quantity of the outer secondary air inlet can be conveniently adjusted according to the needs, and the adjustment is more convenient.
Description
Technical Field
The utility model relates to the technical field of cyclone combustors, in particular to the technical field of a device for independently adjusting the quantity and rotation of secondary air outside a hedging cyclone combustor.
Background
The cyclone burner is a device for burning pulverized coal widely applied in the utility boiler industry, and the traditional cyclone burner is characterized in that: the primary air enters the hearth in a direct current or rotational flow mode, the secondary air rotates from the outer side of the primary air to enter the hearth, the airflow strongly rotates, a low-pressure area is generated in the central part, radial and axial pressure gradients are formed, the axial pressure gradients enable smoke gas in the central part to reversely flow along the axis, backflow which is opposite to the flowing direction of the main airflow is formed near the outlet of the burner, and high-temperature smoke gas is sucked to the root of the jet flow of the burner to heat the pulverized coal airflow, so that the pulverized coal airflow catches fire.
The chinese patent publication No. CN115342345a proposes a cyclone burner for high-moisture lignite combustion, which is connected with a straight pipe section of a pulverized coal pipe through a primary air elbow, a conical blunt body separator is coaxially installed in the straight pipe section of the pulverized coal pipe, the conical blunt body separator is matched with a spent air pipe to form a spent air separation device, two ends of the spent air pipe with a damper are respectively provided with a spent air inlet coaxially arranged at the front end of the primary air elbow and a spent air nozzle facing a furnace chamber, the primary air elbow is connected with a primary air barrel, a pulverized coal concentrator is integrally installed at the tail section of the primary air barrel, primary air is injected into the furnace chamber after two-stage flaring, primary air primary flaring is formed at the tail section of the primary air barrel, a concentration separation ring device is correspondingly arranged at the tail end of the primary air pipe, and an inner secondary air flaring and an outer secondary air flaring are sequentially arranged at the radial outer side of the primary air secondary flaring. The cyclone burner inputs cyclone through the second cyclone generator, but the cyclone amount input by the second cyclone generator with the structure cannot be independently regulated, and cannot be regulated in real time according to actual combustion conditions and combustion requirements, so that the cyclone burner is inconvenient to use.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides an independent adjustable device for the external secondary air volume and rotation of a hedging cyclone burner, which is convenient for adjusting the air volume of an external secondary air channel in real time.
In order to achieve the above purpose, the utility model provides an independent adjustable device for the external secondary air volume and the rotation degree of a hedging cyclone burner, which comprises a cyclone burner body, wherein two ends of the cyclone burner body are respectively a combustion end and an air inlet end, the cyclone burner body comprises a central air pipe, a primary air pipe sleeved outside the central air pipe, a secondary air pipe sleeved outside the primary air pipe and a tertiary air pipe sleeved outside the secondary air pipe, an external secondary air channel is arranged between the secondary air pipe and the tertiary air pipe, an external secondary air inlet communicated with the external secondary air channel is arranged on the outer wall of the external secondary air channel, an opening of the external secondary air inlet is arranged far away from the axial direction of the tertiary air pipe, an air volume adjusting sleeve which is matched with the external secondary air inlet and is used for adjusting the opening of the external secondary air inlet is sleeved outside the external secondary air inlet in an axial sliding manner, a plurality of control rods used for controlling the axial sliding of the air volume adjusting sleeve are connected to the air volume adjusting sleeve, and the control rods axially extend to the cyclone burner body to the air inlet end along the axial direction of the cyclone burner.
Preferably, the outer secondary air inlet is circumferentially provided with a plurality of wind direction adjusting louvers which are arranged in an annular array, and the wind direction adjusting louvers are obliquely arranged.
Preferably, two sides of the outer secondary air inlet are respectively provided with a first annular baffle plate and a second annular baffle plate, the first annular baffle plate is fixedly connected with the outer wall of the secondary air pipe, the second annular baffle plate is fixedly connected with the outer wall of the tertiary air pipe, and the outer secondary air inlet is arranged between the first annular baffle plate and the second annular baffle plate.
Preferably, a limit flange matched with the side edge of the first annular baffle is arranged on one side, close to the control rod, of the air quantity adjusting sleeve.
Preferably, the primary air pipe, the secondary air pipe and the tertiary air pipe are provided with bellmouths with gradually increased diameters at one ends close to the combustion end.
The device for independently adjusting the volume and the rotation of the secondary air outside the opposite-impact cyclone burner has the beneficial effects that: according to the utility model, the air quantity adjusting sleeve capable of adjusting the opening area of the outer secondary air inlet is arranged at the outer secondary air inlet, and the control rod is arranged to control the axial movement of the air quantity adjusting sleeve, so that the air quantity of the outer secondary air inlet is controlled, the corresponding air quantity of the outer secondary air inlet can be conveniently adjusted according to the requirement, the adjustment is more convenient, and the burner can also be adjusted in the use process.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of a device for adjusting the secondary air volume and rotation of a hedging cyclone burner.
FIG. 2 is a schematic side view of a device for adjusting the secondary air volume and rotation of a hedging cyclone burner.
FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 2.
Fig. 4 is a schematic diagram of a front view structure of an external secondary air volume and rotation independent adjustable device of a hedging cyclone burner.
FIG. 5 is a schematic view of the cross-sectional structure B-B in FIG. 4.
Fig. 6 is a schematic perspective view of an air volume adjusting sleeve of an external secondary air volume and rotation independent adjusting device of a hedging cyclone burner.
Wherein:
1-a central air duct; 2-primary air pipes; 4-a secondary air pipe; 7-tertiary air pipes; 8-an air quantity adjusting sleeve; 61-limiting flanges; 71-an outer secondary air inlet; 72-wind direction adjusting louvers; 73-a first annular baffle; 74-a second annular baffle.
Description of the embodiments
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
In the description of the present utility model, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships in which the inventive product is conventionally placed in use, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, the device for independently adjusting the external secondary air volume and the rotation degree of the opposite-impact swirl burner comprises a swirl burner body, wherein two ends of the swirl burner body are respectively provided with a combustion end and an air inlet end, the swirl burner body comprises a central air pipe 1, a primary air pipe 2 sleeved outside the central air pipe 1, a secondary air pipe 4 sleeved outside the primary air pipe 2 and a tertiary air pipe 7 sleeved outside the secondary air pipe 4, an external secondary air channel is arranged between the secondary air pipe 4 and the tertiary air pipe 7, an external secondary air inlet 71 communicated with the external secondary air channel is arranged on the outer wall of the external secondary air channel, an opening of the external secondary air inlet 71 is far away from the axial direction of the tertiary air pipe 7, an air volume adjusting sleeve 8 which is adaptive to the external secondary air inlet 71 and is used for adjusting the opening size of the external secondary air inlet 71 is sleeved outside the external secondary air pipe, the air volume adjusting sleeve 8 is axially sleeved outside the external secondary air inlet 71, the air inlet adjusting sleeve 8 is connected with a plurality of control rods 6 which axially extend to the axial direction of the swirl burner body along the axial direction of the air inlet control rod 6. In this embodiment, the air volume adjusting sleeve 8 capable of adjusting the opening size of the outer secondary air inlet 71 is arranged at the outer secondary air inlet 71, and the control rod 6 is arranged to control the axial movement of the air volume adjusting sleeve 8, so that the air volume adjusting sleeve 8 is controlled to adjust the air volume of the corresponding outer secondary air inlet 71 as required.
Referring to fig. 5, the outer secondary air inlet 71 is circumferentially provided with a plurality of wind direction adjusting louvers 72 arranged in an annular array, and the wind direction adjusting louvers 72 are obliquely arranged. The wind direction adjusting louver 72 is used for adjusting the direction of the passing airflow, so that the airflow is in a rotating direction, the airflow is fully mixed with the pulverized coal, the combustion quality is improved, the air quantity and the rotational flow can be adjusted by adjusting the opening size of the outer secondary air inlet 71 through the air quantity adjusting sleeve 8, and the ignition stability and the economy of the burner are ensured.
Referring to fig. 3, a first annular baffle plate 73 and a second annular baffle plate 74 are respectively disposed at two sides of the outer secondary air inlet 71, the first annular baffle plate 73 is fixedly connected with the outer wall of the secondary air pipe 4, the second annular baffle plate 74 is fixedly connected with the outer wall of the tertiary air pipe 7, and the outer secondary air inlet 71 is disposed between the first annular baffle plate 73 and the second annular baffle plate 74.
Examples
Referring to fig. 3 and 6, a limit flange 61 matched with the side edge of the first annular baffle 73 is provided on the air quantity adjusting sleeve 8 near the control rod 6. The limit flange 61 can be in interference fit with the first annular baffle 73, the axial adjustment position of the air quantity adjusting sleeve 8 is limited, excessive adjustment of the air quantity adjusting sleeve 8 is avoided, when the limit flange 61 is in interference fit with the first annular baffle 73, the air quantity adjusting sleeve 8 completely seals the outer secondary air inlet 71, and the outer secondary air inlet 71 can be positioned conveniently to be in a completely sealed position.
Referring to fig. 3, the primary air pipe 2, the secondary air pipe 4 and the tertiary air pipe 7 are provided with a bell mouth 9 with gradually increased diameters at the ends close to the combustion end. The horn mouth 9 is convenient for air flow and coal powder diffusion, is convenient for full combustion, and improves combustion quality.
The working process of the utility model comprises the following steps:
in the working process, tertiary air is input through the outer secondary air inlet 71 during combustion, and the axial movement of the air quantity adjusting sleeve 8 is controlled through the control rod 6, so that the air quantity adjusting sleeve 8 is controlled to adjust the opening area of the outer secondary air inlet 71, the air quantity of the outer secondary air inlet 71 is adjusted, and the corresponding air quantity of the outer secondary air inlet 71 can be adjusted according to the requirement.
Standard parts used in the document of the utility model can be purchased from the market, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the electric sliding rail sliding seat, the air cylinder, the welding machine, the electric telescopic rod and the internal parts of the controller adopt conventional models in the prior art, the internal structure of the electric sliding rail sliding seat, the air cylinder, the welding machine, the electric telescopic rod and the controller belong to the prior art structure, a worker can finish normal operation of the electric sliding rail sliding seat, the electric telescopic rod and the controller according to the manual of the prior art, and the circuit connection adopts the conventional connection modes in the prior art, so that the specific description is not made.
It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solutions directly or indirectly to other relevant technical fields, all of which are included in the scope of protection of the present patent.
Claims (5)
1. The utility model provides a secondary air amount of wind and rotation independently adjustable device outside opposite-flow cyclone burner, includes the cyclone burner body, cyclone burner body both ends are combustion end and air inlet end respectively, the cyclone burner body includes center tuber pipe (1), cover is located outside center tuber pipe (1) primary air pipe (2), cover are located outside primary air pipe (2) secondary air pipe (4), cover are located tertiary air pipe (7) outside secondary air pipe (4), its characterized in that: the utility model discloses a cyclone burner, including tertiary air pipe (7), secondary air pipe (4) with be equipped with outer secondary air way between tertiary air pipe (7), outer secondary air way outer be equipped with outer secondary air intake (71) of outer secondary air way intercommunication, outer secondary air intake (71) opening orientation is kept away from tertiary air pipe (7) axis direction sets up, outer secondary air intake (71) overcoat is equipped with rather than the adaptation and is used for adjusting outer secondary air intake (71) opening size's air regulation sleeve (8), but air regulation sleeve (8) axial sliding's cover is located outside outer secondary air intake (71), be connected with a plurality of being used for control on air regulation sleeve (8) axial sliding's control rod (6), control rod (6) are followed cyclone burner body axial extension is to air inlet end department.
2. The device for independently adjusting the volume and rotation of the secondary air outside the opposite-impact swirl burner as claimed in claim 1, wherein: the outer secondary air inlet (71) is circumferentially provided with a plurality of wind direction adjusting louvers (72) which are arranged in an annular array, and the wind direction adjusting louvers (72) are obliquely arranged.
3. The device for independently adjusting the volume and rotation of the secondary air outside the opposite-impact swirl burner as claimed in claim 1, wherein: the two sides of the outer secondary air inlet (71) are respectively provided with a first annular baffle plate (73) and a second annular baffle plate (74), the first annular baffle plate (73) is fixedly connected with the outer wall of the secondary air pipe (4), the second annular baffle plate (74) is fixedly connected with the outer wall of the tertiary air pipe (7), and the outer secondary air inlet (71) is arranged between the first annular baffle plate (73) and the second annular baffle plate (74).
4. A single adjustable device for adjusting the volume and rotation of secondary air outside a hedging cyclone burner as claimed in claim 3, wherein: and a limiting flange (61) matched with the side edge of the first annular baffle (73) is arranged on one side, close to the control rod (6), of the air quantity adjusting sleeve (8).
5. The device for independently adjusting the volume and rotation of the secondary air outside the opposite-impact swirl burner as claimed in claim 1, wherein: and a horn mouth (9) with gradually increased diameter is arranged at one end, close to the combustion end, of the primary air pipe (2), the secondary air pipe (4) and the tertiary air pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528124.1U CN219674281U (en) | 2023-03-17 | 2023-03-17 | Device for independently adjusting secondary air volume and rotation of outside-opposite-impact cyclone burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528124.1U CN219674281U (en) | 2023-03-17 | 2023-03-17 | Device for independently adjusting secondary air volume and rotation of outside-opposite-impact cyclone burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219674281U true CN219674281U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320528124.1U Active CN219674281U (en) | 2023-03-17 | 2023-03-17 | Device for independently adjusting secondary air volume and rotation of outside-opposite-impact cyclone burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219674281U (en) |
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2023
- 2023-03-17 CN CN202320528124.1U patent/CN219674281U/en active Active
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