CN202328137U - U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at top of burner - Google Patents
U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at top of burner Download PDFInfo
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- CN202328137U CN202328137U CN2011205013048U CN201120501304U CN202328137U CN 202328137 U CN202328137 U CN 202328137U CN 2011205013048 U CN2011205013048 U CN 2011205013048U CN 201120501304 U CN201120501304 U CN 201120501304U CN 202328137 U CN202328137 U CN 202328137U
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- gas injection
- burner
- oil field
- injection boiler
- field gas
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Abstract
The utility model relates to an oil field gas injection boiler, in particular to a U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at the top of a burner and solves the problems of low efficiency of the existing coal burning oil field gas injection boiler and large discharge quantity of atmospheric pollutants. The U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at the top of the burner comprises a hearth, a convection flue and an ash falling pit; a pulverized coal burner is installed on the top wall of the hearth, an output port of the pulverized coal burner is communicated with an input port of the hearth; the bottom part of the hearth is communicated with the bottom part of the convection flue; a high-temperature coal economizer, a low-temperature coal economizer, an air preheater and a smoke exhaust port are installed in the convection flue from bottom to top in sequence; and a membrane type water cooling wall enclosed by a horizontally-surrounding and lifting membrane type water cooling wall tube is arranged in the hearth. The U-shaped flame vertical pulverized coal burning oil field gas injection boiler solves the problems of low efficiency of the existing coal burning oil field gas injection boiler and large discharge quantity of the atmospheric pollutants and is applicable to an oil field crude oil thermal recovery process.
Description
Technical field
The utility model relates to the oilfield gas injection boiler, specifically is the vertical coal dust firing oilfield gas injection of a kind of burner overhead U-shaped flame boiler.
Background technology
Oil thermal recovery is exploited after being meant the underground sticky crude oil that is difficult to exploit being heated.In the oil thermal recovery process, be used for being called thermal recovery boiler, also be the oilfield gas injection boiler to the steam generating equipment of oilbearing stratum injection Steam Heating crude oil.The oilfield gas injection boiler is a kind of high parameter low capacity direct-flow steam boiler, and its operating pressure is up to 18Mpa, but capacity is generally little.Early stage oilfield gas injection boiler oil generally uses the petroleum by-product in oil, gas or oil field; Like waste oil waste gas etc.; Then along with oil price is constantly soaring, even the oil field also hopes to adopt cheap coal fuel to replace expensive fuel oil; To reduce the thickened oil recovery cost, so coal-fired oilfield gas injection boiler has just been arranged.Existing coal-fired oilfield gas injection boiler generally is to be the grate firing boiler (chain grate boiler) of fuel with the raw coal; Directly the shortcoming of burning raw coal mainly contains two: the one, and efficient is low, using energy source insufficient (It is generally accepted that the average operating efficiency of chain grate boiler has only about 65%); The 2nd, boiler Air Pollutant Emission amount is bigger, is unfavorable for environmental protection.Coal dust firing is one of high performance clean burning mode of the coal of generally acknowledging, and its efficiency of combustion can reach more than 95%～99% usually, is that other combustion system institute is unapproachable.Pulverized coal combustion also is the combustion technology of a maturation; On large-sized station boiler, use quite general; And long-term history arranged; Just because the limitation of economic development and science and technology, receive cost height, uncontrollable atmosphere pollution initial ejection concentration and pollute the restriction of aspects such as the thing discharging is serious, make this clean burning technology on the low capacity boiler, not obtain good application for a long time.Also be rooted in the hearts of the people day by day along with energy-conserving and environment-protective become fundamental state policy, research and development and the application of this efficient energy-saving clean burning technology of coal dust firing on the low capacity boiler obtains paying attention in recent years.The oilfield gas injection boiler belongs to the special boiler of high parameter, low capacity, on the oilfield gas injection boiler, uses pulverized coal combustion, can realize low energy consumption, low emission.Based on this, being necessary to invent a kind of is the oilfield gas injection boiler of fuel with the coal dust, to solve the existing problem that coal-fired oilfield gas injection boiler efficiency is low and the Air Pollutant Emission amount is big.
Summary of the invention
The utility model provides the vertical coal dust firing oilfield gas injection of a kind of burner overhead U-shaped flame boiler in order to solve the existing problem that coal-fired oilfield gas injection boiler efficiency is low and the Air Pollutant Emission amount is big.
The utility model is to adopt following technical scheme to realize: the vertical coal dust firing oilfield gas injection of burner overhead U-shaped flame boiler comprises burner hearth, convection pass and the ashcan that falls; On the crown wall of burner hearth coal burner is installed, and the delivery outlet of coal burner is communicated with the input port of burner hearth; Burner hearth bottom is communicated with the convection pass bottom; High-temperature economizer, low-level (stack-gas) economizer, air preheater, exhaust opening are installed in the convection pass from bottom to top successively; The ashcan that falls is communicated with burner hearth bottom and convection pass bottom respectively; Be furnished with the fin panel casing that the monowall tube that risen by horizontal circle surrounds in the burner hearth.
The concrete course of work is following: after coal dust is lighted in coal burner; Flame that burning produces and flue gas are propagated in burner hearth from top to bottom; After the fin panel casing heat exchange; Get into convection pass by burner hearth bottom, high-temperature economizer, low-level (stack-gas) economizer, air preheater are upwards washed away in turnover successively, discharge through exhaust opening at last.In this process, the flow trace of flame and flue gas takes the shape of the letter U.The lime-ash that coal dust firing produces drops on burner hearth bottom and convection pass bottom, is accomplished the collection of lime-ash by the ashcan that falls.Based on said process; Compare with existing coal-fired oilfield gas injection boiler; The vertical coal dust firing oilfield gas injection of the described burner overhead of the utility model U-shaped flame boiler has been realized low energy consumption, low emission, has solved the problem that existing coal-fired oilfield gas injection boiler efficiency is low and the Air Pollutant Emission amount is big thus.
The utility model is based on brand new; Realized the clean burning of coal; Under subcritical pressure boiler, produce saturated vapor, solved the problem that existing coal-fired oilfield gas injection boiler efficiency is low and the Air Pollutant Emission amount is big, be applicable to crude oil thermal recovery technology process.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1-burner hearth, 2-convection pass, the 3-ashcan that falls, 4-coal burner, 5-high-temperature economizer, 6-low-level (stack-gas) economizer, 7-air preheater, 8-exhaust opening.
The specific embodiment
The vertical coal dust firing oilfield gas injection of burner overhead U-shaped flame boiler comprises burner hearth 1, convection pass 2 and the ashcan 3 that falls; Coal burner 4 is installed on the crown wall of burner hearth 1, and the delivery outlet of coal burner 4 is communicated with the input port of burner hearth 1; Burner hearth 1 bottom is communicated with convection pass 2 bottoms; High-temperature economizer 5, low-level (stack-gas) economizer 6, air preheater 7, exhaust opening 8 are installed in the convection pass 2 from bottom to top successively; The ashcan 3 that falls is communicated with burner hearth 1 bottom and convection pass 2 bottoms respectively; Be furnished with the fin panel casing that the monowall tube that risen by horizontal circle surrounds in the burner hearth 1;
During practical implementation, fin panel casing adopts the direct current endless form, still can reliably working to satisfy under subcritical state that the carbonated drink density contrast reduces.Furnace height should be able to satisfy the requirement of coal dust firing and after-flame.
Claims (1)
1. the vertical coal dust firing oilfield gas injection of a burner overhead U-shaped flame boiler is characterized in that: comprise burner hearth (1), convection pass (2) and the ashcan that falls (3); Coal burner (4) is installed on the crown wall of burner hearth (1), and the delivery outlet of coal burner (4) is communicated with the input port of burner hearth (1); Burner hearth (1) bottom is communicated with convection pass (2) bottom; High-temperature economizer (5), low-level (stack-gas) economizer (6), air preheater (7), exhaust opening (8) are installed in the convection pass (2) from bottom to top successively; The ashcan (3) that falls is communicated with burner hearth (1) bottom and convection pass (2) bottom respectively; Be furnished with the fin panel casing that the monowall tube that risen by horizontal circle surrounds in the burner hearth (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205013048U CN202328137U (en) | 2011-12-06 | 2011-12-06 | U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at top of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205013048U CN202328137U (en) | 2011-12-06 | 2011-12-06 | U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at top of burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202328137U true CN202328137U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205013048U Expired - Fee Related CN202328137U (en) | 2011-12-06 | 2011-12-06 | U-shaped flame vertical pulverized coal burning oil field gas injection boiler placed at top of burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202328137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425775A (en) * | 2011-12-06 | 2012-04-25 | 山西蓝天环保设备有限公司 | U-shaped flame vertical pulverized coal fired oilfield gas injection boiler with overhead burner |
| CN103292310A (en) * | 2013-06-29 | 2013-09-11 | 陈懿修 | Air suction type threaded pipe air pre-heater and threaded smoke pipe coal economizer combined device |
-
2011
- 2011-12-06 CN CN2011205013048U patent/CN202328137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425775A (en) * | 2011-12-06 | 2012-04-25 | 山西蓝天环保设备有限公司 | U-shaped flame vertical pulverized coal fired oilfield gas injection boiler with overhead burner |
| CN103292310A (en) * | 2013-06-29 | 2013-09-11 | 陈懿修 | Air suction type threaded pipe air pre-heater and threaded smoke pipe coal economizer combined device |
| CN103292310B (en) * | 2013-06-29 | 2015-02-18 | 陈懿修 | Air suction type threaded pipe air pre-heater and threaded smoke pipe coal economizer combined device |
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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: 20120711 Termination date: 20151206 |
|
| EXPY | Termination of patent right or utility model |