CN2219434Y - Smoke settling device for steam boiler - Google Patents
Smoke settling device for steam boiler Download PDFInfo
- Publication number
- CN2219434Y CN2219434Y CN 95201508 CN95201508U CN2219434Y CN 2219434 Y CN2219434 Y CN 2219434Y CN 95201508 CN95201508 CN 95201508 CN 95201508 U CN95201508 U CN 95201508U CN 2219434 Y CN2219434 Y CN 2219434Y
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- CN
- China
- Prior art keywords
- steam
- burner hearth
- magnetization filter
- inlet pipe
- steam boiler
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- Expired - Fee Related
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Abstract
The utility model relates to a smoke settling device for steam boilers, and belongs to the combustion-supporting device of the boiler. The utility model is mainly composed of a steam inlet pipe, a main stop valve, a connecting pipe, a magnetization filter, a plug switch and a spoiling nozzle. The spoiling nozzle is fixed in the inside wall of a boiler hearth. One end of the steam inlet pipe is communicated with the steam source, and the other end of the steam inlet pipe is connected with the magnetization filter. The steam inlet pipe is provided with the main stop valve. The magnetization filter is connected with the spoiling nozzle through the connecting pipe and the plug switch. The utility model improves the utilization of the fuel, reduces the pollution of the smoke on the environment, and is suitable for various coal-burning steam boilers.
Description
The utility model relates to and falls the flue dust device in a kind of burner hearth that is used for steam boiler, belongs to the oxygenation combustion-supporting apparatus of boiler.
At present, China's middle and small burn coal boiler commonly used is upwards blown from the fire grate bottom by air blast, to ensure the burning oxygen of boiler fired coal layer.The burner hearth of general boiler three burning blocks before, during and after the inherent burning time-division, and the air blast air-supply time is to blow in burner hearth uniformly, cause the slagging tap of coal district and back segment of advancing of leading portion to distinguish the oxygen surplus and the very hot oven district oxygen supply deficiency in stage casing, fire coal can not get abundant burning, and the thermal efficiency is low when making burning.In addition, coal cinder is not of uniform size in the coal seam in the burner hearth, when air-supply, cause the coal seam perforation easily, oxygen can not be fully combined with red-hot coal, and because of the coal dust that air blast blows afloat too much, coal dust can not get fully burning and just discharges with air blast, has both caused energy loss, causes environmental pollution again.Introduce in " Industrial Boiler " compiled according to Shanghai Communications University, Xi'an boiler teaching and research room, the loss that the fuel that above-mentioned several phenomenons cause can not completing combustion reaches 40～50% of fuel gross calorific power.
The purpose of this utility model be a kind of steam boiler of design the flue dust device falls, it is simple in structure, is installed in the burning situation that can improve in the burner hearth in the burner hearth, improves coal-fired efficiency of combustion.
The flue dust device that falls of the steam boiler that the utility model is designed mainly is made up of steam inlet pipe, total stop valve, tube connector, magnetization filter, cock switch, flow-disturbing nozzle, the flow-disturbing nozzle is fixed in the burner hearth madial wall, other part is installed in outside the body of heater, vapour source in steam inlet pipe one end and the steam boiler communicates, the other end is connected with the magnetization filter, be provided with total stop valve in steam inlet pipe, the magnetization filter is connected with flow-disturbing nozzle on being fixed on the burner hearth madial wall through the cock switch by pipeline.
Smooth and easy for steam flow in the maintenance pipeline, get rid of dirt, the three-way pipe of one " T " font is installed in the pipeline between magnetization filter and cock switch, three-way pipe one end is connected with the magnetization filter, and an end is connected with the cock switch, and the other end is connected with a blowoff valve.
For preventing that the pipeline that is connected with nozzle in the inherent very hot oven of the burner hearth district from burning out, the connecting line outer wall in the very hot oven district is fixed with the protecting cast iron cover.
When the fired coal combustion in the burner hearth, open total stop valve, by steam inlet pipe fraction steam is introduced in the magnetization filter, open the cock switch, close blowoff valve, the steam after the filtration passes to the flow-disturbing nozzle place of burner hearth through connecting line, the flow-disturbing nozzle sprays into steam in the burner hearth, mix with the air-flow that air blast blows from bottom to up, in burner hearth, form strong swirling eddy, make the coal combustion in the burner hearth and be suspended in the abundant and airborne oxygen catalytic combustion of the interior coal dust of burner hearth.When the cut-out tap switch, when opening blowoff valve, the dirt in the connecting line can be emitted from blowoff valve, to clean in the maintenance pipeline; When boiler quits work, also can steam in the steam delivery tube road and water be emitted from blowoff valve.
The steam boiler that the utility model is designed the steam boiler that the flue dust device is applicable to various coal-fired usefulness falls.
The advantage of falling the flue dust device of the steam boiler that the utility model is designed is:
1. improved the burning situation in the burner hearth, fuel combustion is abundant.Owing in burner hearth, form strong swirling eddy, oxygen fully contacts with the coal combustion in very hot oven district, solved the problem of the interior very hot oven district oxygen supply deficiency of burner hearth of general steam boiler, and because of generating the stroke that swirling eddy has strengthened flue gas in the burner hearth, impel the pulverized coal particle of trace contained in the interior air-flow of burner hearth fully to burn, increased coal-fired caloric value.
2. reduced the pollution of coal smoke to environment.Because coal-fired abundant in the burner hearth internal combustion, the boiler soot emission amount reduces significantly, the pollution of atmosphere is made moderate progress.
3. device itself has antifreeze function.Owing in falling the flue dust device, blowoff valve is installed, can get rid of the dirt that falls in the flue dust device, the water that falls in the pipeline of flue dust device can be emitted again, prevent the pipeline damage of enduring cold in winter.
Fig. 1 is the structure chart that falls the flue dust device of the designed steam boiler of the utility model.
Steam boiler shown in Figure 1 the flue dust device falls; mainly form by steam inlet pipe 1, total stop valve 2, tube connector 3, magnetization filter 4, cock switch 5 and flow-disturbing nozzle 6; flow-disturbing nozzle 6 is installed on the interior sidewall of burner hearth; the connecting line of nozzle that is positioned at the very hot oven district 21 of burner hearth is equipped with protecting cast iron cover 7 outward; one end of steam inlet pipe 1 links to each other with the vapour source in the steam boiler; the other end links to each other with total stop valve 2; total stop valve 2 is connected with magnetization filter 4 through tube connector 3, and magnetization filter 4 reaches cock switch 5 by the road and passes to flow-disturbing nozzle 6 places.Between magnetization filter 4 and cock switch 5, be communicated with blowoff valve 9 by three-way pipe 8.When steam boiler uses, can open total stop valve 2 and cock switch 5 and open, close blowoff valve 9, steam, sprays in the burner hearth from flow-disturbing nozzle 6 through magnetizing the flow-disturbing nozzle of delivering to after filter filters in the burner hearth 6 from steam inlet pipe 1.Generally be divided into three sections in the burner hearth, leading portion is for entering coal district 20, and the stage casing is very hot oven district 21, and back segment is the district 22 of slagging tap.For making the fired coal combustion in the burner hearth, air blast is from 23 times upwards air-supplies of fire grate, the vapor mixing of in burner hearth, sending to flow-disturbing nozzle 6, form swirling eddy in the burner hearth, coal-fired abundant and airborne combination with oxygen, the evolution of heat of burning rapidly, and sufficient combustion, make the utilization rate of coal height that steam boiler is used, save the energy.When steam boiler is finished using, total stop valve 2 and cock switch 5 are closed, open blowoff valve 9, get rid of dirt and the water fall in the flue dust device, get rusty in the pipeline or pipeline bursting by freezing in cold day preventing.
Claims (3)
1. a steam boiler falls the flue dust device, it is characterized in that: mainly form by steam inlet pipe, total stop valve, tube connector, magnetization filter, cock switch, flow-disturbing nozzle, steam inlet pipe one end communicates with vapour source, the other end is connected with the magnetization filter by total stop valve and tube connector, and the magnetization filter is connected with flow-disturbing nozzle on being fixed on burner hearth sidewall through connecting line and cock switch again.
2. steam boiler according to claim 1 falls the flue dust device, it is characterized in that: in the connecting line between magnetization filter and cock switch three-way pipe is installed, three-way pipe wherein two ends links to each other with magnetization filter and cock switch respectively, and the other end is connected with a blowoff valve.
Steam boiler according to claim 1 the flue dust device falls, it is characterized in that: the connecting line outer wall that is positioned at the very hot oven district of burner hearth is fixed with the protecting cast iron cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95201508 CN2219434Y (en) | 1995-01-27 | 1995-01-27 | Smoke settling device for steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95201508 CN2219434Y (en) | 1995-01-27 | 1995-01-27 | Smoke settling device for steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2219434Y true CN2219434Y (en) | 1996-02-07 |
Family
ID=33854927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95201508 Expired - Fee Related CN2219434Y (en) | 1995-01-27 | 1995-01-27 | Smoke settling device for steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2219434Y (en) |
-
1995
- 1995-01-27 CN CN 95201508 patent/CN2219434Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |