CN202012944U - Gas ignition device of producer - Google Patents
Gas ignition device of producer Download PDFInfo
- Publication number
- CN202012944U CN202012944U CN2011200794900U CN201120079490U CN202012944U CN 202012944 U CN202012944 U CN 202012944U CN 2011200794900 U CN2011200794900 U CN 2011200794900U CN 201120079490 U CN201120079490 U CN 201120079490U CN 202012944 U CN202012944 U CN 202012944U
- Authority
- CN
- China
- Prior art keywords
- burner
- tube
- coal dust
- igniter
- pulverized coal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a gas ignition device of a producer, which comprises a pulverized coal device, an igniter and a pre-combustion chamber. The pulverized coal device comprises a pulverized coal hopper and an ejector. The outlet of the pulverized coal hopper is communicated with the ejector which is connected to a compressed air tube I and a pulverized coal air flow tube. The pulverized coal air flow tube is communicated with the pre-combustion chamber. The igniter sequentially comprises a collapsible tube, a mixing tube, an expansion tube and a burner. A gas burner is arranged at the tail end of the collapsible tube, a compressed air tube II is communicated with the collapsible tube, a fire ejecting port is arranged at the front end of the burner, and the burner is communicated with the pre-combustion room. The gas ignition device of the producer adopts a method of forced pre-mix combustion and replaces an oil gun with a pulverized coal combustion chamber according to the characteristics of coal gas of the producer so as to effectively save fuel oil consumption.
Description
Technical field
The utility model relates to a kind of producer gas igniter.
Background technology
The pulverized-coal fired boiler of the present power plant of China is all lighted a fire with oil basically or is combustion-supporting.When firing with oil drop, generally be burner hearth to be burnt heat,, be in operation to guarantee coal dust smooth combustion when spraying into burner hearth with oil, because the variation of load, therefore the potentially unstable that burns under underload needs with oil combustion-supportingly, and this sparking mode oil consumption is very big, whole nation station boiler ignition oil is more than 500,000 tons/year, combustion-supporting bigger with oilconsumption, along with the day of energy supply is becoming tight, replace oil with coal has become one of important measures that solve energy problem.
The utility model content
The purpose of this utility model provides a kind of producer gas igniter that can effectively save fuel consume.
For achieving the above object, the technical solution adopted in the utility model is:
The producer gas igniter, comprise coal dust device, igniter and precombustion chamber, coal dust device comprises coal dust bucket and injector, and the outlet of coal dust bucket communicates with injector, injector is connected with coal dust streamtube with the compressed air hose I, and coal dust streamtube communicates with precombustion chamber; Igniter comprises collapsible tube, mixing tube, convergent divergent channel and the burner that links to each other successively, and the collapsible tube end is provided with jet for gas, is communicated with the compressed air hose II on the collapsible tube, and the front end of burner is provided with bocca, and burner communicates with precombustion chamber.
The exit of coal dust bucket is provided with the auger that is connected with motor, and the discharging opening of auger communicates with injector.
Collapsible tube, convergent divergent channel and burner all be cone and collapsible tube end diameter greater than point diameter, convergent divergent channel end diameter less than point diameter, burner end diameter greater than point diameter, mixing tube is a cylinder.
The tapering of collapsible tube is 40 ~ 45 degree, and the tapering of convergent divergent channel is 8 ~ 10 degree, and the tapering of burner is 12 ~ 15 degree.
The sectional area of jet for gas is 1:3 ~ 3.5 with the ratio of the sectional area of mixing tube, and the mixing tube sectional area is 1:1.2 ~ 1.5 with the ratio of the area of burner leading section.
The utility model is according to the characteristic of producer gas, adopt mandatory premixture formula combustion system, be producer gas and compressed air premix and burning in igniter, the torch of ejection removes to light the breeze airflow of being drawn by injector in precombustion chamber, after treating certain hour, the coal dust precombustion chamber enters steady operational status, with the main pulverized coal flow in the combusting boiler, after entering stable operation, the main pulverized coal flow in the boiler can cut off igniting pre-burning device, if boiler load instability starting ignition system is at any time regulated, replace oil gun with the coal dust precombustion chamber like this, thereby reached the fuel-economizing purpose.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is an igniter structural representation in the utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, the producer gas igniter, comprise coal dust device, igniter 8 and precombustion chamber 9, coal dust device comprises coal dust bucket 2 and injector 4, the exit of coal dust bucket 2 is provided with the auger 3 that is connected with motor 6, the discharging opening of auger 3 communicates with injector 4, and injector 4 is connected with coal dust streamtube 5 with compressed air hose I 1, and coal dust streamtube 5 communicates with precombustion chamber 9; Igniter 8 comprises collapsible tube 12, mixing tube 13, convergent divergent channel 14 and the burner 15 that links to each other successively, collapsible tube 12 ends are provided with jet for gas 11, jet for gas 11 is communicated with gas piping 7, be communicated with compressed air hose II 10 on the collapsible tube 12, the front end of burner 15 is provided with bocca 16, and burner 15 communicates with precombustion chamber 9.Collapsible tube 12, convergent divergent channel 14 and burner 15 all are that greater than point diameter, mixing tube 13 is a cylinder less than point diameter, burner 15 end diameters greater than point diameter, convergent divergent channel 14 end diameters for cone and collapsible tube 12 end diameters; The tapering of collapsible tube 12 is 40 ~ 45 degree, and the tapering of convergent divergent channel 14 is 8 ~ 10 degree, and the tapering of burner 15 is 12 ~ 15 degree.The sectional area of jet for gas 11 is 1:3 ~ 3.5 with the ratio of the sectional area of mixing tube 13, mixing tube 13 sectional areas are 1:1.2 ~ 1.5 with the ratio of the area of burner 15 leading sections, the structural design of collapsible tube 12, mixing tube 13, convergent divergent channel 14 and burner 15 more helps coal gas and compressed-air actuated mixing and conveying, can guarantee the length and the temperature of flame.
The course of work of the present utility model is: producer gas and compressed air is premix and burning in igniter 8, the torch of ejection removes to light the breeze airflow of being drawn by injector 4 in precombustion chamber 9, after treating certain hour, coal dust precombustion chamber 9 enters steady operational status, with the main pulverized coal flow in the combusting boiler, after entering stable operation, the main pulverized coal flow in the boiler can cut off igniting pre-burning device, if boiler load instability starting ignition system is at any time regulated.
Claims (5)
1. the producer gas igniter is characterized in that, comprises coal dust device, igniter and precombustion chamber, coal dust device comprises coal dust bucket and injector, the outlet of coal dust bucket communicates with injector, and injector is connected with coal dust streamtube with the compressed air hose I, and coal dust streamtube communicates with precombustion chamber; Igniter comprises collapsible tube, mixing tube, convergent divergent channel and the burner that links to each other successively, and the collapsible tube end is provided with jet for gas, is communicated with the compressed air hose II on the collapsible tube, and the front end of burner is provided with bocca, and burner communicates with precombustion chamber.
2. producer gas igniter as claimed in claim 1 is characterized in that the exit of coal dust bucket is provided with the auger that is connected with motor, and the discharging opening of auger communicates with injector.
3. producer gas igniter as claimed in claim 1 or 2, it is characterized in that, collapsible tube, convergent divergent channel and burner all be cone and collapsible tube end diameter greater than point diameter, convergent divergent channel end diameter less than point diameter, burner end diameter greater than point diameter, mixing tube is a cylinder.
4. producer gas igniter as claimed in claim 3 is characterized in that, the tapering of collapsible tube is 40 ~ 45 degree, and the tapering of convergent divergent channel is 8 ~ 10 degree, and the tapering of burner is 12 ~ 15 degree.
5. producer gas igniter as claimed in claim 4 is characterized in that, the sectional area of jet for gas is 1:3 ~ 3.5 with the ratio of the sectional area of mixing tube, and the mixing tube sectional area is 1:1.2 ~ 1.5 with the ratio of the area of burner leading section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200794900U CN202012944U (en) | 2011-03-24 | 2011-03-24 | Gas ignition device of producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200794900U CN202012944U (en) | 2011-03-24 | 2011-03-24 | Gas ignition device of producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202012944U true CN202012944U (en) | 2011-10-19 |
Family
ID=44783562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200794900U Expired - Fee Related CN202012944U (en) | 2011-03-24 | 2011-03-24 | Gas ignition device of producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202012944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076215A (en) * | 2019-12-11 | 2020-04-28 | 上海齐耀热能工程有限公司 | Ground ignition device for petrochemical torch system |
-
2011
- 2011-03-24 CN CN2011200794900U patent/CN202012944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076215A (en) * | 2019-12-11 | 2020-04-28 | 上海齐耀热能工程有限公司 | Ground ignition device for petrochemical torch system |
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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: 20111019 Termination date: 20120324 |