CN202709071U - Oil field gas injection boiler for circulating fluidized bed - Google Patents
Oil field gas injection boiler for circulating fluidized bed Download PDFInfo
- Publication number
- CN202709071U CN202709071U CN 201220377038 CN201220377038U CN202709071U CN 202709071 U CN202709071 U CN 202709071U CN 201220377038 CN201220377038 CN 201220377038 CN 201220377038 U CN201220377038 U CN 201220377038U CN 202709071 U CN202709071 U CN 202709071U
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- boiler
- fluidized bed
- oil field
- circulating fluidized
- gas injection
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Abstract
The utility model discloses an oil field gas injection boiler for a circulating fluidized bed, which belongs to the technical field of the boiler. The oil field gas injection boiler for the circulating fluidized bed aims to solve the problems of high requirement on the quality of purified recycling softened water of the oil field and low steam dryness. The oil field gas injection boiler for the circulating fluidized bed mainly comprises a boiler and a water feeding system, wherein the boiler is a circulating fluidized bed boiler; the boiler cylinder of the circulating fluidized bed boiler is divided into a clean section on the middle, and salt sections on two ends; the clean section is connected with a down pipe; the salt sections are provided with drain outlets; the sewage drain outlets of the salt sections are connected with a continuous sewage disposal flash vessel; and the flash vessel is connected with a deaerator. The water feeding system is formed by connecting a weak acid adding device, a decarburization device, the deaerator, an economizer and the boiler cylinder via a pipeline in series.
Description
Technical field
The utility model belongs to the boiler technology field, is specifically related to a kind of fire coal circulating fluid bed uphole steam generator.
Background technology
Existing uphole steam generator is the special equipment for the viscous crude heat extraction by steam injection, the steam that boiler produces is all annotated the underground heating oil reservoir, its steam/water circulating mode by: after injection boiler is produced steam injection underground heating viscous crude, together be plucked out of reuse injection boiler after water-oil separating, sewage disposal with viscous crude.
Existing injection boiler all is the small-sized DC boilers take natural gas, oil as fuel, the reuse recovered water need be through complicated water treatment, fuel and water treatment operating cost are high, steam quality is low simultaneously, directly affect the tar productivity of oil well, for reducing cost of winning, be badly in need of exploitation high-quality steam Steam-injection Boiler Burning Pulverized Coal, the water quality reduce when boiler is to the recovered water reuse simultaneously.
Summary of the invention
The purpose of this utility model is to solve problems of the prior art, and a kind of fire coal circulating fluid bed uphole steam generator is provided, and the cleansing and recycling demineralized water in oil field is adopted in boiler feedwater, more suitable blending clear water demineralized water.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be:
Oil field steam filling boiler of circulation fluidized bed comprises boiler and water supply system, and described boiler is CFBB, and the drum of its boiler is divided into and is positioned at clean section of middle part and is positioned at the salt section at two ends, and described clean section is connected with down-comer, and described salt section is provided with sewage draining exit; Salt section sewage water discharge mouth is connected with continuous blowdown flash tank, and described flash vessel is connected with oxygen-eliminating device.
Described water supply system is composed in series by pipeline by adding weak acid device, decarbonization device, oxygen-eliminating device, economizer, drum.
The utility model compared with prior art has following beneficial effect:
1, the utility model adopts drum salt section continuous blowdown water, has guaranteed the security of water circulation system;
2, the utility model adopts and adds weak acid and decarbonization system, keeps the stove water ph value in safe range;
3, the utility model institute sewer flashes off low-pressure steam by continuous blowdown flash tank, and this Steam Recovery is used for heated feed water, like this, can guarantee that boiler can not cause owing to blowdown rate is excessive thermal loss, has improved again feed temperature simultaneously.Adopt Natural Circulation, steam carries out the carbonated drink separation in drum after, mass dryness fraction improves the tar productivity of oil well up to more than 99%.
Description of drawings
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model water supply system schematic diagram.
Among the figure: 1-drum; 2-salt section; 3-clean section; 4-sewage draining exit; 5-down-comer; 6-add the weak acid device; 7-decarbonization device; 8-oxygen-eliminating device; 9-economizer; 10-water-cooling system; 11-main-steam outlet; 12-superheater; 13-sewage collector; 14-continuous blowdown flash tank; 15-low-pressure steam container; 16-feed-water intake.
The specific embodiment
As depicted in figs. 1 and 2, oil field steam filling boiler of circulation fluidized bed comprises boiler and water supply system, described boiler is CFBB, the drum 1 of its boiler is divided into and is positioned at clean section 3 of middle part and is positioned at the salt section 2 at two ends, and described clean section 3 is connected with down-comer 5, and described salt section 2 is provided with sewage draining exit 4; Salt section sewage water discharge mouth 4 is connected with continuous blowdown flash tank 14, and described flash vessel is connected with oxygen-eliminating device 8.
Described water supply system is composed in series by pipeline by adding weak acid device 6, decarbonization device 7, oxygen-eliminating device 8, economizer 9, drum 1.
Using method:
Cleansing and recycling demineralized water with the oil field, suitably blending clear water demineralized water is injected by feed-water intake 16 again, enter drum through adding weak acid device 6, decarbonization device 7, oxygen-eliminating device 8, economizer 9, sewage is discharged through the sewage draining exit 4 of blowdown section, through continuous blowdown flash tank 14, the low-pressure steam that flashes off enters low-pressure steam container 15, passes in the oxygen-eliminating device 8 to participate in feedwater and send into economizer 9 and enter drum 1 again again, sends into corresponding collection container by the main steam that CFBB produces by main-steam outlet 11.
Claims (2)
1. oil field steam filling boiler of circulation fluidized bed, comprise boiler and water supply system, described boiler is CFBB, it is characterized in that: the drum of described boiler (1) is divided into clean section (3) and the salt section (2) that is positioned at two ends that is positioned at the middle part, described clean section (3) are connected with down-comer (5), and described salt section (2) connects sewage draining exit (4); Salt section sewage water discharge mouth (4) is connected with continuous blowdown flash tank (14), and described flash vessel (14) is connected with oxygen-eliminating device (8).
2. according to oil field steam filling boiler of circulation fluidized bed claimed in claim 1, it is characterized in that: described water supply system is composed in series by pipeline by adding weak acid device (6), decarbonization device (7), oxygen-eliminating device (8), economizer (9) and drum (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377038 CN202709071U (en) | 2012-07-31 | 2012-07-31 | Oil field gas injection boiler for circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377038 CN202709071U (en) | 2012-07-31 | 2012-07-31 | Oil field gas injection boiler for circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709071U true CN202709071U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377038 Expired - Lifetime CN202709071U (en) | 2012-07-31 | 2012-07-31 | Oil field gas injection boiler for circulating fluidized bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN202709071U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791752A (en) * | 2015-04-15 | 2015-07-22 | 哈尔滨工业大学 | Dual-direct-current circulating fluidized bed steam-injection boiler with vertical evaporating pipes inside |
| CN104791748A (en) * | 2015-05-13 | 2015-07-22 | 哈尔滨工业大学 | Double-direct-current circulating fluidized bed steam injection boiler with buried pipes and evaporation coils |
| CN104791749A (en) * | 2015-05-13 | 2015-07-22 | 哈尔滨工业大学 | Direct-current and natural circulation coupled CFB steam injection boiler with buried pipes and evaporation coils |
| CN107036069A (en) * | 2017-05-18 | 2017-08-11 | 杭州江东富丽达热电有限公司 | Boiler steam and water circuit |
| CN108101269A (en) * | 2018-02-06 | 2018-06-01 | 苏州迪森能源技术有限公司 | Boiler water treatment system |
| CN112728525A (en) * | 2021-01-08 | 2021-04-30 | 大唐淮北发电厂 | Blowdown system of drum boiler |
-
2012
- 2012-07-31 CN CN 201220377038 patent/CN202709071U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791752A (en) * | 2015-04-15 | 2015-07-22 | 哈尔滨工业大学 | Dual-direct-current circulating fluidized bed steam-injection boiler with vertical evaporating pipes inside |
| CN104791748A (en) * | 2015-05-13 | 2015-07-22 | 哈尔滨工业大学 | Double-direct-current circulating fluidized bed steam injection boiler with buried pipes and evaporation coils |
| CN104791749A (en) * | 2015-05-13 | 2015-07-22 | 哈尔滨工业大学 | Direct-current and natural circulation coupled CFB steam injection boiler with buried pipes and evaporation coils |
| CN104791748B (en) * | 2015-05-13 | 2016-06-29 | 哈尔滨工业大学 | Double; two once-through cycle fluid bed injection boilers with pipe laying and evaporation coil |
| CN104791749B (en) * | 2015-05-13 | 2016-08-24 | 哈尔滨工业大学 | Band pipe laying and evaporation coil direct current couple CFB injection boiler with Natural Circulation |
| CN107036069A (en) * | 2017-05-18 | 2017-08-11 | 杭州江东富丽达热电有限公司 | Boiler steam and water circuit |
| CN108101269A (en) * | 2018-02-06 | 2018-06-01 | 苏州迪森能源技术有限公司 | Boiler water treatment system |
| CN112728525A (en) * | 2021-01-08 | 2021-04-30 | 大唐淮北发电厂 | Blowdown system of drum boiler |
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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 |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |