CN203147801U - Outlet area-adjustable nozzle capable of swinging up and down - Google Patents
Outlet area-adjustable nozzle capable of swinging up and down Download PDFInfo
- Publication number
- CN203147801U CN203147801U CN 201320097825 CN201320097825U CN203147801U CN 203147801 U CN203147801 U CN 203147801U CN 201320097825 CN201320097825 CN 201320097825 CN 201320097825 U CN201320097825 U CN 201320097825U CN 203147801 U CN203147801 U CN 203147801U
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- Prior art keywords
- nozzle
- nozzle body
- swinging
- combustor
- connecting rod
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- Expired - Lifetime
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- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
The utility model discloses an outlet circulation area-adjustable nozzle capable of swinging up and down. The nozzle comprises a nozzle body fixedly arranged on one side of a combustor. An adjustable baffle is arranged in the nozzle body. The nozzle is characterized in that the nozzle body is connected with the combustor through a rotating bearing; bearing devices are arranged on the nozzle body; one end of each bearing device is fixedly connected with the nozzle body, and the other end of each bearing device is connected with the adjustable baffle; an adjustment connecting rod is arranged on the adjustable baffle, is exposed from the other side of the combustor, and is connected with a first up-and-down swinging device; a swinging connecting rod is arranged in the combustor; and one end of the swinging connecting rod is connected with the nozzle body on one side of the combustor, and the other end of the swinging connecting rod is exposed from the other side of the combustor, and is connected with a second up-and-down swinging device. According to the nozzle, when the flow of secondary air of the nozzle is changed, the air speed and the rigidity of the secondary air are kept stable, the direction of the secondary air is changed, and the position of the flame center of a hearth is regulated to improve heat load distribution in a boiler and regulate the heat exchange working condition of the hearth, so that a good boiler flue gas power field is ensured.
Description
Technical field
The utility model relates to a kind of also nozzle of adjustable discharge area that swings up and down, and belongs to the boiler coal-ash field of combustion technology.
Background technology
In the actual motion of boiler, because the needs of boiler load variation, combustion conditions adjustment and control pollutant emission etc., the flow of secondary wind can be adjusted.The mode of general employing damper baffle plate is controlled the flow of each overfire air jet now.The overfire air jet of traditional boiler-burner is steel plate splicing or foundry goods, and jet expansion is fixed, and circulation area can't change.This just causes regulating in the process of secondary air flow by air door, and jet expansion speed changes, and the off-design value causes potential threat to safety and the economical operation of boiler.In boiler running process, be to regulate steam temperature simultaneously, wind and overfire air jet need be swung, thus the position at control furnace flame center.
Summary of the invention
To be solved in the utility model is the wind speed decreased that existing overfire air jet causes when regulating secondary air flow, flame kernel deflection, the problem that boiler smoke aerodynamic fields such as furnace outlet gas temperature off-design value worsen.
For realizing above purpose, the technical solution of the utility model provides a kind of nozzle that swings up and down and can regulate the outlet circulation area, comprise the nozzle body that is fixed on burner one side, be provided with fender plate in the nozzle body, it is characterized in that nozzle body is connected with burner by rolling bearing; Nozzle body is provided with bearing arrangement, and an end of bearing arrangement is fixedlyed connected with nozzle body, and the other end connects fender plate; Fender plate is provided with the adjusting connecting rod, regulates connecting rod and exposes with first from the burner opposite side and swing up and down device and be connected; Be provided with swing connecting bar in the burner, an end of swing connecting bar is connected with the nozzle body of burner one side, and the other end exposes with second from the opposite side of burner and swings up and down device and be connected.
Preferably, described first swing up and down device, second and swing up and down device and be respectively equipped with first adjusting device, second adjusting device.
Preferably, described first swing up and down hunting range that device, second swings up and down device be about-90 °～90 °.
The utility model has the advantages that flexible modulation jet expansion circulation area within the specific limits, and then regulate the secondary wind speed of jet expansion.Simultaneously can realize swinging up and down, and then regulate secondary wind direction.According to the boiler actual condition, on the basis of in the past adjusting secondary air flow, increase the means of adjusting secondary wind speed and wind direction, the situation that the Furnace Aerodynamic Field that can avoid the secondary wind wind speed decreased that causes by the simple mode of adjusting secondary air flow, secondary general mood stream rigidity to reduce and cause worsens.Adjust overfire air jet outlet circulation area flexibly, make secondary general mood stream under the situation that flow reduces, to keep the stable of secondary wind speed, thereby to guarantee good boiler aerodynamic field, guarantee boiler safety, operation economically.When the boiler reheater steam temperature is undesired, can swing up and down by nozzle, regulate flame central position, make steam temperature arrive normal value.Simultaneously, the swing of overfire air jet also is conducive to control the flame intensity of combustion zone, improves the water-cooling wall wall thermic load of combustion zone, also plays an important role to preventing burner hearth coking and high temperature corrosion.
Description of drawings
The structure of nozzle schematic diagram of swinging up and down of providing of the utility model and adjustable discharge area is provided Fig. 1;
Fig. 2 is the cutaway view of A-A face among Fig. 1;
Fig. 3 is the cutaway view of B-B face among Fig. 1;
The structure of nozzle schematic diagram that Fig. 4 provides for embodiment 2;
Fig. 5 is the cutaway view of A-A face among Fig. 4;
Fig. 6 is the cutaway view of B-B face among Fig. 4.
Among the figure:
1, burner; 2, nozzle body; 3, adjustable plate washer;
4, regulate connecting rod; 5, first swing up and down device; 6, first adjusting device;
7, bearing arrangement; 8, swing connecting bar; 9, second swing up and down device;
10, second adjusting device; 11, rolling bearing; 12, first Sealed casing pipe;
13, first regulate handle; 14, second Sealed casing pipe; 15, second regulate handle.
The specific embodiment
For the utility model is become apparent, now with preferred embodiment, and conjunction with figs. is described in detail below.
Embodiment 1
As Figure 1-3, structure of nozzle schematic diagram for swinging up and down of providing of the utility model and adjustable discharge area, comprise the nozzle body 2 that is fixed on burner 1 one sides, nozzle body 2 is connected with burner 1 by rolling bearing 11, is provided with fender plate 3 in the nozzle body 2.Nozzle body 2 is provided with bearing arrangement 7, one end of bearing arrangement 7 is fixedlyed connected with nozzle body 2, the other end connects fender plate 3, fender plate 3 is provided with regulates connecting rod 4, regulating connecting rod 4 exposes with first from burner 1 opposite side and swings up and down device 5 and be connected, be provided with swing connecting bar 8 in the burner 1, an end of swing connecting bar 8 is connected with the nozzle body 2 of burner 1 one sides, and the other end exposes with second from the opposite side of burner 1 and swings up and down device 9 and be connected.First swings up and down device 5, second swings up and down device 9 and is respectively equipped with first adjusting device 6, second adjusting device 10.First swing up and down hunting range that device 5, second swings up and down device 9 be about-90 °～90 °.
When first adjusting device, 6 pointers rotate, drive first and swing up and down device 5, drive simultaneously and regulate connecting rod 4, fender plate 3 is realized rotating by bearing arrangement 11 under the effect of regulating connecting rod 4, thereby changes the outlet circulation area.
When second adjusting device, 10 pointers rotate, drive second and swing up and down device 9, drive swing connecting bar 8 simultaneously, nozzle body 2 is realized rotating by rolling bearing 11 under the effect of swing connecting bar 8, thereby changes the jet expansion direction.
Shown in Fig. 4-6, difference from Example 1 is that first adjusting device 6 is made up of the first adjusting handle 13, regulates connecting rod 4 and is with first Sealed casing pipe 12 with burner 1 junction.Second adjusting device 10 is made up of the second adjusting handle 15, and swing connecting bar 8 is with second Sealed casing pipe 14 with burner 1 junction.
When the first adjusting handle 13 is pulled out or inserted, drive and regulate connecting rod 4, fender plate 3 is realized rotation by bearing arrangement under the effect of regulating connecting rod 4, thereby changes the outlet circulation area.
When the second adjusting handle 15 is pulled out or inserted, drive swing connecting bar 8, nozzle body 2 is realized rotating by rolling bearing 11 under the effect of swing connecting bar 8, thus change jet expansion direction.
Claims (3)
1. one kind can swing up and down and can regulate the nozzle that exports circulation area, comprise the nozzle body (2) that is fixed on burner (1) one side, be provided with fender plate (3) in the nozzle body (2), it is characterized in that, nozzle body (2) is connected with burner (1) by rolling bearing (11); Nozzle body (2) is provided with bearing arrangement (7), and an end of bearing arrangement (7) is fixedlyed connected with nozzle body (2), and the other end connects fender plate (3); Fender plate (3) is provided with regulates connecting rod (4), regulates connecting rod (4) and exposes with first from burner (1) opposite side and swing up and down device (5) and be connected; Be provided with swing connecting bar (8) in the burner (1), an end of swing connecting bar (8) is connected with the nozzle body (2) of burner (1) one side, and the other end exposes with second from the opposite side of burner (1) and swings up and down device (9) and be connected.
2. a kind of swinging up and down also as claimed in claim 1 can be regulated the nozzle that exports circulation area, it is characterized in that described first swings up and down device (5), second swings up and down device (9) and be respectively equipped with first adjusting device (6), second adjusting device (10).
3. a kind of nozzle that swings up and down and can regulate the outlet circulation area as claimed in claim 1 is characterized in that, described first swing up and down hunting range that device (5), second swings up and down device (9) be about-90 °～90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320097825 CN203147801U (en) | 2013-02-19 | 2013-03-04 | Outlet area-adjustable nozzle capable of swinging up and down |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320077448.4 | 2013-02-19 | ||
| CN201320077441 | 2013-02-19 | ||
| CN201320077441.2 | 2013-02-19 | ||
| CN201320077448 | 2013-02-19 | ||
| CN 201320097825 CN203147801U (en) | 2013-02-19 | 2013-03-04 | Outlet area-adjustable nozzle capable of swinging up and down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147801U true CN203147801U (en) | 2013-08-21 |
Family
ID=48975321
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320097890 Expired - Lifetime CN203231331U (en) | 2013-02-19 | 2013-03-04 | Nozzle capable of swinging laterally and adjustable in outlet area |
| CN 201320097825 Expired - Lifetime CN203147801U (en) | 2013-02-19 | 2013-03-04 | Outlet area-adjustable nozzle capable of swinging up and down |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320097890 Expired - Lifetime CN203231331U (en) | 2013-02-19 | 2013-03-04 | Nozzle capable of swinging laterally and adjustable in outlet area |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN203231331U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791833A (en) * | 2014-01-21 | 2015-07-22 | 四川川锅锅炉有限责任公司 | Area-adjustable secondary air nozzle capable of oscillating |
| CN104832916A (en) * | 2014-02-10 | 2015-08-12 | 四川川锅锅炉有限责任公司 | Pulverized coal burner nozzle with adjustable blunt body |
| CN105299638A (en) * | 2014-06-30 | 2016-02-03 | 四川川锅锅炉有限责任公司 | Low-NOx combustor arrangement mode and structure for intermediate storage bunker coal pulverizing system |
| CN111981474A (en) * | 2020-08-20 | 2020-11-24 | 长沙理工大学 | Jet flow deflection type low NOXBurner with a burner head |
| CN112276667A (en) * | 2020-11-18 | 2021-01-29 | 新昌县益旭龙机械科技有限公司 | Adjustable cutting fluid injection apparatus for machining |
| CN116164310A (en) * | 2021-11-25 | 2023-05-26 | 哈尔滨工业大学 | Combustion chamber head part structure of adjustable open-close type gas turbine |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103953919B (en) * | 2014-04-27 | 2018-02-16 | 大唐(北京)能源管理有限公司 | A kind of burnout degree and secondary air regulation device for pulverized-coal fired boiler |
| CN104525520A (en) * | 2014-12-19 | 2015-04-22 | 广东长虹电子有限公司 | Full-automatic dust removing device |
| CN108248040A (en) * | 2018-01-22 | 2018-07-06 | 上海言诺建筑材料有限公司 | 3D printing nozzle and 3D printing equipment |
| CN111425850B (en) * | 2020-04-14 | 2022-02-08 | 哈尔滨锅炉厂有限责任公司 | Cyclone over-fire air burner capable of integrally swinging up and down, left and right |
| CN111872551B (en) * | 2020-06-24 | 2022-02-15 | 华中科技大学 | Method and device for inhibiting hump defects on back of laser welding seam |
| CN113776078B (en) * | 2021-07-26 | 2022-07-12 | 西安交通大学 | Secondary air duct with variable air speed |
-
2013
- 2013-03-04 CN CN 201320097890 patent/CN203231331U/en not_active Expired - Lifetime
- 2013-03-04 CN CN 201320097825 patent/CN203147801U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791833A (en) * | 2014-01-21 | 2015-07-22 | 四川川锅锅炉有限责任公司 | Area-adjustable secondary air nozzle capable of oscillating |
| CN104832916A (en) * | 2014-02-10 | 2015-08-12 | 四川川锅锅炉有限责任公司 | Pulverized coal burner nozzle with adjustable blunt body |
| CN105299638A (en) * | 2014-06-30 | 2016-02-03 | 四川川锅锅炉有限责任公司 | Low-NOx combustor arrangement mode and structure for intermediate storage bunker coal pulverizing system |
| CN111981474A (en) * | 2020-08-20 | 2020-11-24 | 长沙理工大学 | Jet flow deflection type low NOXBurner with a burner head |
| CN112276667A (en) * | 2020-11-18 | 2021-01-29 | 新昌县益旭龙机械科技有限公司 | Adjustable cutting fluid injection apparatus for machining |
| CN116164310A (en) * | 2021-11-25 | 2023-05-26 | 哈尔滨工业大学 | Combustion chamber head part structure of adjustable open-close type gas turbine |
| CN116164310B (en) * | 2021-11-25 | 2024-06-11 | 哈尔滨工业大学 | Combustion chamber head part structure of adjustable open-close type gas turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203231331U (en) | 2013-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |