CN202813439U - Ignition system for preventing fuel oil from remaining in oil gun - Google Patents
Ignition system for preventing fuel oil from remaining in oil gun Download PDFInfo
- Publication number
- CN202813439U CN202813439U CN 201220532298 CN201220532298U CN202813439U CN 202813439 U CN202813439 U CN 202813439U CN 201220532298 CN201220532298 CN 201220532298 CN 201220532298 U CN201220532298 U CN 201220532298U CN 202813439 U CN202813439 U CN 202813439U
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- CN
- China
- Prior art keywords
- fuel oil
- oil
- fuel
- gun
- pipe
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- Expired - Fee Related
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Abstract
The utility model discloses an ignition system for preventing fuel oil from remaining in an oil gun. The ignition system for preventing the fuel oil from remaining in the oil gun comprises an oil gun and a high energy igniter. The oil gun is connected with a fuel oil supply secondary pipe through a fuel oil supply pipe and is connected with a blow wiping steam secondary pipe through a blow wiping steam pipe. The fuel oil supply pipe is provided with a fuel oil fast valve. The blow wiping steam pipe is provided with a steam blow wiping valve. The oil gun is further connected with a fuel oil recycling device through a fuel oil recycling pipe. The fuel oil recycling pipe is provided with a fuel oil recycling valve. After main fuel trip (MFT) of a boiler, fuel oil in the oil gun can be cleaned out of the oil gun through a fuel oil recycling process so that the fuel oil remained in the oil gun is prevented from entering into a boiler cavity. The fuel oil recycling process includes making sure that the fuel oil fast valve and the steam blow wiping valve are closed, opening the fuel oil recycling valve and enabling the fuel oil remained in the oil gun to flow into the fuel oil recycling device. According to the ignition system for preventing the fuel oil from remaining in the oil gun, the fuel oil remained in the oil gun can be effectively recycled and the boiler after MFT generating no other danger is guaranteed.
Description
Technical field
The utility model relates to a kind of ignition system that prevents from retaining in the oil gun fuel oil.
Background technology
The main Starting mode of thermal power station is: at first light the large oil gun of some, utilize fuel oil to promote temperature in the stove, when the cigarette temperature reaches entry condition in the burner hearth, start coal pulverizer and throw powder in the stove and finish boiler startup.When oil gun is normally stopped transport, can the oil gun of stopping transport be purged, guarantee to retain without fuel oil after oil gun is stopped transport, but boiler MFT is (Main Fuel Trip, be the boiler main fuel trip) after, be with all fuel cut-offs, so must not purge oil gun immediately.Like this, if MFT occurs boiler when having oil gun to put into operation, the oil gun of emergency outage just has fuel oil and remains in the oil gun because can not get purging, and these fuel oils may flow into burner hearth, stick on the water-cooling wall, cause detonation; If oil droplet is brought to back-end ductwork, stick on the back-end surfaces, cause tail secondary combustion; If oil droplet sticks on the battery lead plate of electrostatic precipitator, can reduce the efficiency of dust collection of electrostatic precipitator.As seen, the interior trapped fuel of oil gun has stayed major hidden danger to safety and the economical operation of station boiler.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of ignition system that prevents from retaining in the oil gun fuel oil being provided.
For achieving the above object, the utility model adopts following technical proposals:
A kind of ignition system that prevents from retaining in the oil gun fuel oil, it comprises oil gun and high-energy igniter, described oil gun connects the female pipe of fuel feed by the fuel feed pipe, connect female pipe that purges steam by the pipe that purges steam, described fuel feed pipe is provided with the fuel oil fast valve, the pipe that purges steam is provided with the steam blowing valve, and described oil gun also connects the fuel oil retracting device by the fuel oil recovery tube, and described fuel oil recovery tube is provided with the fuel oil recovery valve.
Described fuel oil recovery tube is connected on the fuel feed pipe and close fuel oil fast valve place.
The grease gun igniting process: oil gun advances burner hearth with high-energy igniter after advancing burner hearth to put in place, begins sparking after high-energy igniter puts in place, then drives the fuel oil fast valve, and the high-energy igniter sparking continued for 10 seconds, withdrawed from afterwards high-energy igniter.Steam blowing valve and fuel oil recovery valve are in closed condition in the ignition process.
The oil gun purge: oil gun advances burner hearth with high-energy igniter after advancing burner hearth to put in place, begins sparking after high-energy igniter puts in place, then drives the steam blowing valve, and the high-energy igniter sparking continued for 30 seconds, withdrawed from afterwards high-energy igniter and oil gun.Purge intermediate fuel oil fast valve and fuel oil recovery valve are in closed condition.
When certain oil gun is normally stopped transport, purge it.But behind the boiler MFT, be with all fuel cut-offs, so must not purge oil gun immediately.Can retain fuel oil in the oil gun of emergency outage at this moment, can the fuel oil in the oil gun be cleaned out oil gun by the fuel oil removal process, prevent that the fuel oil that retains in the oil gun from entering burner hearth.
The fuel oil removal process: affirmation fuel oil fast valve and steam blowing valve are all closed, and open the fuel oil recovery valve, and the trapped fuel in the oil gun passes back into the fuel oil retracting device.
In addition, in the unit operation, when only having the part oil gun to put into operation, also the fuel oil recovery valve of the oil gun that do not put into operation can be opened, reclaim may since in the fuel oil fast valve leakage leak to the fuel oil of oil gun.
The beneficial effects of the utility model are, by this fuel oil removal process, can effectively the fuel oil in the oil gun be reclaimed, and have guaranteed no longer to cause behind the boiler MFT other dangerous spot.
Description of drawings
Fig. 1 is the utility model structural representation;
1. burner hearths wherein, 2. oil gun, 3. high-energy igniter, 4. fuel oil fast valve, the 5. female pipe of fuel feed, 6. steam blowing valve, female pipe, 8. fuel oil recovery valve, 9. fuel oil retracting device 7. purge steam.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, a kind of ignition system that prevents from retaining in the oil gun fuel oil, it comprises that described oil gun 2 connects the female pipe 5 of fuel feed by the fuel feed pipe be used to the oil gun 2 and the high-energy igniter 3 that are located near the burner hearth 1, the fuel feed pipe is provided with fuel oil fast valve 4.Described oil gun 2 also connects female pipe 7 that purges steam by the pipe that purges steam, and the pipe that purges steam is provided with steam blowing valve 6.Described oil gun 2 also connects fuel oil retracting device 9 by the fuel oil recovery tube, and described fuel oil recovery tube is provided with fuel oil recovery valve 8, and the fuel oil recovery tube is connected on the fuel feed pipe between fuel oil fast valve 4 and the oil gun 2 and close fuel oil fast valve 4 places.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (2)
1. ignition system that prevents from retaining in the oil gun fuel oil, it comprises oil gun and high-energy igniter, described oil gun connects the female pipe of fuel feed by the fuel feed pipe, connect female pipe that purges steam by the pipe that purges steam, described fuel feed pipe is provided with the fuel oil fast valve, and the pipe that purges steam is provided with the steam blowing valve, it is characterized in that, described oil gun also connects the fuel oil retracting device by the fuel oil recovery tube, and described fuel oil recovery tube is provided with the fuel oil recovery valve.
2. the ignition system that prevents from retaining in the oil gun fuel oil as claimed in claim 1 is characterized in that, described fuel oil recovery tube is connected on the fuel feed pipe and close fuel oil fast valve place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532298 CN202813439U (en) | 2012-10-17 | 2012-10-17 | Ignition system for preventing fuel oil from remaining in oil gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532298 CN202813439U (en) | 2012-10-17 | 2012-10-17 | Ignition system for preventing fuel oil from remaining in oil gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202813439U true CN202813439U (en) | 2013-03-20 |
Family
ID=47872304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220532298 Expired - Fee Related CN202813439U (en) | 2012-10-17 | 2012-10-17 | Ignition system for preventing fuel oil from remaining in oil gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202813439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423767A (en) * | 2013-08-14 | 2013-12-04 | 陕西钢铁集团有限公司 | Method and device for rapidly carrying out fire extinguishment on gas boiler |
| CN104089300A (en) * | 2014-07-09 | 2014-10-08 | 江苏永钢集团有限公司 | Safety control method for preventing tempering explosion of gas boiler |
-
2012
- 2012-10-17 CN CN 201220532298 patent/CN202813439U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423767A (en) * | 2013-08-14 | 2013-12-04 | 陕西钢铁集团有限公司 | Method and device for rapidly carrying out fire extinguishment on gas boiler |
| CN103423767B (en) * | 2013-08-14 | 2016-04-20 | 陕西钢铁集团有限公司 | A kind of method of gas boiler quick extinguishing and device |
| CN104089300A (en) * | 2014-07-09 | 2014-10-08 | 江苏永钢集团有限公司 | Safety control method for preventing tempering explosion of gas boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20151017 |
|
| EXPY | Termination of patent right or utility model |