CN201277543Y - Nozzle horizontal hunting regulation apparatus used for coal powder burner - Google Patents
Nozzle horizontal hunting regulation apparatus used for coal powder burner Download PDFInfo
- Publication number
- CN201277543Y CN201277543Y CNU200820152449XU CN200820152449U CN201277543Y CN 201277543 Y CN201277543 Y CN 201277543Y CN U200820152449X U CNU200820152449X U CN U200820152449XU CN 200820152449 U CN200820152449 U CN 200820152449U CN 201277543 Y CN201277543 Y CN 201277543Y
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- nozzle
- parallel
- dwang
- limit type
- link mechanisms
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Abstract
The utility model provides a nozzle horizontal oscillating regulating device for pulverized coal burners, and is characterized in that the front portion of a nozzle has vanes which can horizontally rotate, a connecting rod and a parallelogram link mechanism, the vanes which can horizontally rotate are connected with the connecting rod which is further connected with one end of the parallelogram link mechanism, the other end of the parallelogram link mechanism is connected with the internal side of the nozzle, the front end portion of a rotation rod has a two-way rotating screw bolt, and the other two ends of the parallelogram link mechanism are respectively connected with the front end portion of the rotation rod and the two-way rotating screw bolt. The nozzle horizontal oscillating device is employed, which can be convenient for regulating boilers during operation and enlarging the adaptive capacity of boilers to changes of coal types, but also can regulate the mix time of first and second winds of a nozzle exit and provide the important significance to lower the discharge of Nox and satisfy the requirement for protecting environment, furthermore, because the horizontal injecting degrees of pulverized coal nozzle air currents can be regulated in time, the quadrangle circles of contacts can be adjusted to be fit in size, which can prevent from overheating and coking and plays a great role in the operation of boilers.
Description
Technical field
The utility model relates to the technical field of power plant soot, specifically a kind of nozzle horizontal hunting adjusting device that is used for boiler coal-ash combustor.
Background technology
In the combustion system of generating plant pulverized coal boiler, the most general combustion system of existing conventional large-scale power station pulverized-coal fired boiler is the corner tangential firing mode that adopts in boiler furnace at present, and coal nozzle can swing up and down.Its common mode is to select the size of quadrangle tangential circle according to boiler capacity, coal composition, burner hearth size and design experiences, thereby determine the horizontal-jet angle of coal nozzle air-flow, once after this horizontal-jet angle determines, nozzle can only swing up and down, but can not horizontal hunting, the size of corner tangential firing just can not be changed, and therefore works as boiler operatiopn and changes, and coal changes or burns and will be restricted when changing; Perhaps work as boiler and select will not take place at that time boiler water-cooling pipe overtemperature because of quadrangle tangential circle, when the adherent coking of breeze airflow, just can not in time obtain adjusting, influence boiler operatiopn, if therefore the horizontal-jet angle of coal nozzle air-flow can be changed, will be of great benefit to the operation of boiler.
Summary of the invention
The purpose of this utility model is to provide a kind of nozzle horizontal hunting adjusting device that is used for coal burner, and it can carry out the level adjusting in boiler operatiopn, especially can increase the adaptive capacity that boiler changes coal.
The purpose of this utility model realizes by following technological approaches: a kind of nozzle horizontal hunting adjusting device that is used for coal burner, it comprises bellows, the nozzle that is connected with bellows, dwang is housed in bellows, the rearward end of dwang is equipped with handwheel, it is characterized in that: but the front portion of nozzle is provided with blade, link rod and the parallel four limit type link mechanisms of parallel rotation, but the blade of parallel rotation is connected with link rod, link rod also connects with an end of parallel four limit type link mechanisms, and the other end of parallel four limit type link mechanisms is connected with nozzle is inboard; The leading section of dwang is equipped with two-way rotating screw bolt, and other two ends of parallel four limit type link mechanisms are connected with two-way rotating screw bolt with the leading section of dwang respectively.
The utility model advantage compared with prior art is:
1, the rotating manner of adjusting device can be converted into the blade parallel mobile mode.And when not rotating, two-way screw rod can not lock blade angle;
Angle that causes when 2, the coal burner nozzle swings up and down and length variations, and when burning the thermal expansion difference that produces, alignment error, driving error etc. can eliminate;
3, adjusting device has hermetically-sealed construction, can prevent the flow leakage in the coal burner bellows, and the rotation formula of adjusting device can be regulated the actuator adjusting that also can adopt automation by on-site manual;
4, can externally obtain the angle that horizontally rotates of nozzle parallel blade by pointer, thereby know the Way out of nozzle air current;
5, adopt this nozzle horizontal hunting device, the adjusting that can make things convenient for boiler to be in operation increases the adaptive capacity that boiler changes coal; The also incorporation time of adjustable nozzles outlet primary and secondary air simultaneously, thus the growing amount of Nox can be controlled, to the discharging that reduces Nox with satisfy environmental requirement and have great significance;
6, boiler water wall pipe overtemperature and breeze airflow are adherent, and coking will take place because of quadrangle tangential circle is selected will not take place at that time when boiler in addition, at this moment by in time adjusting the horizontal-jet angle of coal nozzle air-flow, quadrangle tangential circle is adjusted to suitable size, just can prevent overtemperature and coking, the operation of boiler is of great benefit to.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the schematic diagram that pointer is set and seals at relevant place at the handwheel place among Fig. 1
The specific embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model is a kind of nozzle horizontal hunting adjusting device that is used for coal burner, it comprises bellows 11, the nozzle 10 that is connected with bellows 11, dwang 7 is housed in bellows, the rearward end of dwang 7 is equipped with handwheel 6, it is different from prior art and is: but the front portion of nozzle 10 is provided with blade 1, link rod 2 and the parallel four limit type link mechanisms 3 of parallel rotation, but the blade 1 of parallel rotation is connected with link rod 2, link rod 2 also connects with an end of parallel four limit type link mechanisms 3, and the other end of parallel four limit type link mechanisms 3 is connected with nozzle is inboard; The leading section of dwang 7 is equipped with two-way rotating screw bolt 4, and other two ends of parallel four limit type link mechanisms 3 are connected with two-way rotating screw bolt 4 with the leading section of dwang 7 respectively.The utility model utilizes parallel four limit type link mechanisms 3 and two-way rotating screw bolt 4, rotating manner can be converted into the parallel mobile mode of link rod 2, during concrete enforcement, but be provided with the blade 1 of 2 parallel rotation at least in the front portion of nozzle, but an end of the blade 1 of each parallel rotation is connected with link rod 2 respectively, but present embodiment is provided with the blade 1 of 4 parallel rotation in the front portion of nozzle 10; Parallel four limit type link mechanisms 3 have 4 ends, 4 end two or two correspondences, form the diagonal angle, an end that wherein forms the parallel four limit type link mechanisms 3 at a diagonal angle is connected with link rod 2 by a connecting rod 17, the other end of the parallel four limit type link mechanisms 3 at this diagonal angle and 10 inboard connections of nozzle; An end that forms the parallel four limit type link mechanisms 3 at another diagonal angle is connected with two-way rotating screw bolt 4, and the other end of the parallel four limit type link mechanisms 3 at this diagonal angle is connected with the leading section of dwang 7; Dwang 7 is equipped with the universal joint 5 of at least one section scalable variation, and the universal joint 5 of this scalable variation is equipped with universal wheel 9, and the dwang 7 of present embodiment is equipped with the universal joint 5 of two sections scalable variations, and the universal joint 5 of every section scalable variation is equipped with universal wheel 9; The universal joint 5 of the scalable variation in the bellows with the rotating screw bolt 4 of the connection of dwang 7 and dwang 7 leading sections with can solve angle and the length variations that causes when the coal burner nozzle swings up and down being connected of parallel four limit type link mechanisms 3, and the thermal expansion difference that produces during boiler combustion, alignment error, driving error etc., and can prevent stuck effectively.Be provided with thread segment 12 at dwang 7 near handwheel 6 places when implementing in addition, thread segment 12 wears a nut sleeve 13, and a pointer 22 is established in the end of nut sleeve 13, and pointer 22 outer is with degree plate 23 at a moment; Some stretches out bellows 11 dwang 7, be provided with outer sleeve 16 at the dwang 7 that stretches out bellows 11, outer sleeve 16 is provided with sealing shroud 15, the upper end of sealing shroud 15 is provided with positioning sleeve 18, the lower end of sealing shroud 15 is provided with seal cover 14, and the bellows 11 of present embodiment are provided with gripper shoe 19, are provided with scale plate 23 on gripper shoe 19, the pointer 22 that is connected with nut sleeve 13 is connected by pin 20, pin 21, and a pointer 8 is connected with dwang 7.Handwheel 6 of the present utility model has hermetically-sealed construction, can prevent the flow leakage in the coal burner bellows.The rotation formula that handwheel 6 adopts can the on-site manual adjusting also can adopt the actuator of automation to regulate.Utilization pointer 8 can externally obtain the level angle of nozzle parallel rotation blade, thereby knows the injection direction of jet expansion air-flow.
Claims (7)
1, a kind of nozzle horizontal hunting adjusting device that is used for coal burner, it comprises bellows (11), the nozzle (10) that is connected with bellows (11), dwang (7) is housed in bellows, the rearward end of dwang (7) is equipped with handwheel (6), it is characterized in that: nozzle (10) but the front portion be provided with the blade (1) of parallel rotation, link rod (2) and parallel four limit type link mechanisms (3), but the blade of parallel rotation (1) is connected with link rod (2), link rod (2) also connects with an end of parallel four limit type link mechanisms (3), and the other end of parallel four limit type link mechanisms (3) is connected with nozzle (10) is inboard; The leading section of dwang (7) is equipped with two-way rotating screw bolt (4), and other two ends of parallel four limit type link mechanisms (3) are connected with two-way rotating screw bolt (4) with the leading section of dwang (7) respectively.
2, a kind of nozzle horizontal hunting adjusting device that is used for coal burner according to claim 1, it is characterized in that: the front portion at nozzle be provided with at least (2) but the blade (1) of individual parallel rotation, but an end of the blade of each parallel rotation (1) is connected with link rod (2) respectively.
3, a kind of nozzle horizontal hunting adjusting device that is used for coal burner according to claim 1, it is characterized in that: parallel four limit type link mechanisms (3) have 4 ends, 4 end two or two correspondences, form the diagonal angle, an end that wherein forms the parallel four limit type link mechanisms (3) at a diagonal angle is connected with link rod (2) by a connecting rod (17), and the other end of the parallel four limit type link mechanisms (3) at this diagonal angle is connected with nozzle (10) is inboard; An end that forms the parallel four limit type link mechanisms (3) at another diagonal angle is connected with two-way rotating screw bolt (4), and the other end of the parallel four limit type link mechanisms (3) at this diagonal angle is connected with the leading section of dwang (7).
4, a kind of nozzle horizontal hunting adjusting device that is used for coal burner according to claim 1, it is characterized in that: dwang (7) is equipped with the universal joint (5) of at least one section scalable variation, and the universal joint of this scalable variation (5) is equipped with universal wheel (9).
5, a kind of nozzle horizontal hunting adjusting device that is used for coal burner according to claim 1, it is characterized in that: locate to be provided with thread segment (12) near handwheel (6) at dwang (7), thread segment (12) wears a nut sleeve (13), a pointer (22) is established in the end of nut sleeve (13), the outer degree plate at a moment (23) that is with of pointer (22).
6, a kind of nozzle horizontal hunting adjusting device that is used for coal burner according to claim 1, it is characterized in that: some stretches out bellows (11) dwang (7), be provided with outer sleeve (16) at the dwang that stretches out bellows (11) (7), outer sleeve (16) is provided with sealing shroud (15), the upper end of sealing shroud (15) is provided with positioning sleeve (18), and the lower end of sealing shroud (15) is provided with seal cover (14).
7, a kind of according to claim 1 or 5 nozzle horizontal hunting adjusting device that is used for coal burner, it is characterized in that: bellows (11) are provided with gripper shoe (19), are provided with scale plate (23) on gripper shoe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820152449XU CN201277543Y (en) | 2008-08-28 | 2008-08-28 | Nozzle horizontal hunting regulation apparatus used for coal powder burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820152449XU CN201277543Y (en) | 2008-08-28 | 2008-08-28 | Nozzle horizontal hunting regulation apparatus used for coal powder burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277543Y true CN201277543Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820152449XU Expired - Fee Related CN201277543Y (en) | 2008-08-28 | 2008-08-28 | Nozzle horizontal hunting regulation apparatus used for coal powder burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277543Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486579A (en) * | 2013-07-10 | 2014-01-01 | 中国航天空气动力技术研究院 | Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply |
| CN104048294A (en) * | 2013-03-15 | 2014-09-17 | 北京航天动力研究所 | Controllable flame swing type gas burner |
| CN104456536A (en) * | 2014-11-27 | 2015-03-25 | 清华大学 | W-shaped flame boiler with lateral inclination angles of outer-side combustors adjustable |
| CN104791832A (en) * | 2014-01-17 | 2015-07-22 | 烟台龙源电力技术股份有限公司 | Oscillating one-way wall-attached secondary air device of pulverized coal fired boiler and pulverized coal fired boiler |
| CN109750157A (en) * | 2017-11-08 | 2019-05-14 | 株式会社Posco | sinter manufacturing device and manufacturing method |
-
2008
- 2008-08-28 CN CNU200820152449XU patent/CN201277543Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048294A (en) * | 2013-03-15 | 2014-09-17 | 北京航天动力研究所 | Controllable flame swing type gas burner |
| CN104048294B (en) * | 2013-03-15 | 2016-08-31 | 北京航天动力研究所 | A kind of controllable flame swing gas burner |
| CN103486579A (en) * | 2013-07-10 | 2014-01-01 | 中国航天空气动力技术研究院 | Plasma ignition and combustion stabilization device for IGBT (insulated gate bipolar transistor) rectification power supply |
| CN103486579B (en) * | 2013-07-10 | 2016-06-01 | 中国航天空气动力技术研究院 | The plasma ignition of a kind of igbt transistor commutation supply voltage and smooth combustion apparatus |
| CN104791832A (en) * | 2014-01-17 | 2015-07-22 | 烟台龙源电力技术股份有限公司 | Oscillating one-way wall-attached secondary air device of pulverized coal fired boiler and pulverized coal fired boiler |
| CN104791832B (en) * | 2014-01-17 | 2017-02-15 | 烟台龙源电力技术股份有限公司 | Oscillating one-way wall-attached secondary air device of pulverized coal fired boiler and pulverized coal fired boiler |
| CN104456536A (en) * | 2014-11-27 | 2015-03-25 | 清华大学 | W-shaped flame boiler with lateral inclination angles of outer-side combustors adjustable |
| CN104456536B (en) * | 2014-11-27 | 2017-05-17 | 清华大学 | W-shaped flame boiler with lateral inclination angles of outer-side combustors adjustable |
| CN109750157A (en) * | 2017-11-08 | 2019-05-14 | 株式会社Posco | sinter manufacturing device and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20100828 |