CN201172653Y - Direct freezing type coal water slurry gasification nozzle with expanding segment - Google Patents
Direct freezing type coal water slurry gasification nozzle with expanding segment Download PDFInfo
- Publication number
- CN201172653Y CN201172653Y CN 200720306001 CN200720306001U CN201172653Y CN 201172653 Y CN201172653 Y CN 201172653Y CN 200720306001 CN200720306001 CN 200720306001 CN 200720306001 U CN200720306001 U CN 200720306001U CN 201172653 Y CN201172653 Y CN 201172653Y
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- China
- Prior art keywords
- pipe
- rear end
- expansion segment
- pipe core
- water slurry
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The utility model provides a direct cooling type coal water slurry gasification nozzle with a divergent section, which comprises a central pipe with the divergent section, an air inlet hole, an inner ring pipe, an outer cooling casing pipe, a gasifying agent inlet, a coal water slurry inlet, a cooling water inlet and a cooling water outlet, wherein two rows or a plurality of rows of air inlet holes are arranged on the front half portion of the central pipe with the divergent section, and the rear end is equipped with the coal water slurry inlet. The front end of the inner ring pipe is connected with the middle portion of the divergent section of the central pipe, the rear end is equipped with the gasifying agent inlet, the front end of an outer pipe of the outer cooling casing pipe is connected with the head portion of the divergent section of the central pipe, and the rear end is equipped with the cooling water inlet. Gaps are arranged on the front end of an inner pipe of the outer cooling casing pipe and the head portion of the divergent section of the central pipe, the rear end is equipped with the cooling water outlet, and the rear ends of the central pipe, the inner ring pipe and the outer cooling casing pipe are fixed by flanges. The included angle between the air inlet hole and the central pipe is 30-90 degree, and the tilt angle is 10-90 degree. The materials of the front half portion of the central pipe with the divergent section is metal materials with wear resistance, corrosion resistance and high temperature resistance or lining refractory ceramics materials.
Description
One, technical field
The utility model relates to a kind of direct freezing type coal water slurry gasification nozzle that has expansion segment, belongs to the texture improvement of coal-water-slurry gasification nozzle.
Two, background technology
Gasification is the tap and the gordian technique of modern Coal Chemical Industry.In numerous gasification process, with the coal water slurry is raw material, with the oxygen-containing gas be the jet of vaporized chemical carry bed (or claiming air flow bed) technology owing to efficiency of carbon conversion, device structure is simple, easy to operate, vapor pressure is high, can satisfy subsequent technique etc. to be pressed into etc. be that people generally have an optimistic view of.The core of this technology is the gasification nozzle of coal water slurry.
United States Patent (USP) S.U.Pat.3705108,3743606 and Chinese patent CN1125163A a kind of coal-water-slurry gasification nozzle is disclosed respectively.These nozzles are triple channel (center and outer ring channel are the vaporized chemical passage, and interior ring passage is the coal water slurry passage) coal-water-slurry gasification nozzle, now use in the coal water slurry gasification process.Because the coal slurry in nozzle flow channel is in room temperature, but when burning, can produce the high temperature of 1500～1600K from the coal slurry of nozzle ejection, therefore, not only work under high temperature heat-flash shake condition in the end of nozzle, and order also will bear wearing and tearing and the corrosion to runner of the pressure, coal slurry of coal slurry.Although adopt the Wear-resistant, high-temperature resistant material and add measure such as cooling coil at nozzle-end, but because reasons in structure, the interior ring contracting nozzle position of coal water slurry can not obtain cooling, be in the hyperthermia radiation state always, the gouging abrasion of coal water slurry in addition, the work-ing life of nozzle, generally about 45 days, the longest use record did not surpass half a year, causes the production cost of coal slurry gasifier high.
Three, summary of the invention
The purpose of this utility model just is to avoid the deficiency of existing coal-water-slurry gasification nozzle technology, and a kind of direct freezing type coal water slurry gasification nozzle that has expansion segment is provided.
The utility model is made up of the pipe core that has expansion segment, air inlet port, interior endless tube, exterior cooling sleeve pipe, vaporized chemical import, coal water slurry import and cooling water intakeoutfall etc., the first half that it is characterized in that having the pipe core of expansion segment is provided with the air inlet port of two row or multi-row, air inlet port and pipe core angle are 30～90 °, 0～90 ° at pitch angle, the rear end is provided with the coal water slurry import; Interior endless tube front end links to each other with the expansion segment middle part of pipe core, and the rear end is provided with the vaporized chemical import; The outer tube front end of exterior cooling sleeve pipe links to each other with the expansion segment head of pipe core, and the rear end is provided with entrance of cooling water; The interior pipe front end of exterior cooling sleeve pipe and the expansion segment head of pipe core leave the space, and the rear end is provided with cooling water outlet; The rear end of pipe core, interior endless tube and exterior cooling sleeve pipe is all fixed with flange; The first half material that has the pipe core of expansion segment is resistant to elevated temperatures metallic substance of wear-and corrosion-resistant or liner high temperature ceramic material.
Four, description of drawings
Accompanying drawing is the direct freezing type coal water slurry gasification nozzle structural representation that has expansion segment.
The drawing of accompanying drawing is established bright as follows: 1. have the pipe core of expansion segment, 2. air inlet port, 3. in endless tube, 4. exterior cooling sleeve pipe, 5. vaporized chemical import, 6. coal water slurry import, 7. entrance of cooling water, 8. cooling water outlet.
Five, embodiment
Establish bright constructional feature of the present utility model in detail below in conjunction with drawings and Examples.
The first half that has the pipe core (1) of expansion segment is provided with the air inlet port (2) of two row or multi-row, and air inlet port (2) is 30～90 ° with pipe core (1) angle, and 0～90 ° at pitch angle, rear end are provided with coal water slurry import (6); Interior endless tube (3) front end links to each other with the expansion segment middle part of pipe core (1), and the rear end is provided with vaporized chemical import (5); The outer tube front end of exterior cooling sleeve pipe (4) links to each other with the expansion segment head of pipe core (1), and the rear end is provided with entrance of cooling water (7); The interior pipe front end of exterior cooling sleeve pipe (4) and the expansion segment head of pipe core (1) leave the space, and the rear end is provided with cooling water outlet (8); The rear end of pipe core (1), interior endless tube (3) and exterior cooling sleeve pipe (4) is all fixed with flange; The first half material that has the pipe core (1) of expansion segment is resistant to elevated temperatures metallic substance of wear-and corrosion-resistant or liner high temperature ceramic material.
Have direct freezing type coal water slurry gasification nozzle when work of expansion segment, vaporized chemical is walked interior endless tube, and the two row or multi-row air inlet port jet of the first half by pipe core enters pipe core; Mix with the coal water slurry intense impact of pipe core, form good gas-liquid spray flow, eject the expansion segment of pipe core, form the coal water slurry atomizing cone by pipe core single hole straight tube.Water coolant enters from the outer tube back-end of exterior cooling sleeve pipe, the space of the expansion segment head of interior pipe front end of process and pipe core, flow out from the interior pipe front end of exterior cooling sleeve pipe, directly cool off the expansion segment of pipe core, reduced the temperature of expansion segment head, improve the wear resistance and corrosion resistance of pipe core and expansion segment, thereby prolonged the life-span of gasification nozzle greatly.
Direct freezing type coal water slurry gasification nozzle with expansion segment provided by the utility model utilizes the straight-through and expansion segment of single hole, has reduced the water coal Slurry is to the erosion on nozzle spout surface; Cooling water directly cools off atomizing spray orifice and expansion segment thereof in addition, greatly reduces the surface of expansion segment material Temperature has improved intensity and the life-span of nozzle material, thereby has guaranteed to have service life with the direct freezing type coal water slurry gasification nozzle of expansion segment Long, atomizing effect is good, the conversion ratio advantages of higher of carbon, can satisfy branch of industry it is changed the requirement of nozzle.
Claims (1)
1. the direct freezing type coal water slurry gasification nozzle that has expansion segment, form by the pipe core that has expansion segment, air inlet port, interior endless tube, exterior cooling sleeve pipe, vaporized chemical import, coal water slurry import and cooling water intakeoutfall, the first half that it is characterized in that having the pipe core of expansion segment is provided with the air inlet port of two row or multi-row, air inlet port and pipe core angle are 30～90 °, 0～90 ° at pitch angle, the rear end is provided with the coal water slurry import; Interior endless tube front end links to each other with the expansion segment middle part of pipe core, and the rear end is provided with the vaporized chemical import; The outer tube front end of exterior cooling sleeve pipe links to each other with the expansion segment head of pipe core, and the rear end is provided with entrance of cooling water; The interior pipe front end of exterior cooling sleeve pipe and the expansion segment head of pipe core leave the space, and the rear end is provided with cooling water outlet; The rear end of pipe core, interior endless tube and exterior cooling sleeve pipe is all fixed with flange; The first half material that has the pipe core of expansion segment is resistant to elevated temperatures metallic substance of wear-and corrosion-resistant or liner high temperature ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720306001 CN201172653Y (en) | 2007-11-23 | 2007-11-23 | Direct freezing type coal water slurry gasification nozzle with expanding segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720306001 CN201172653Y (en) | 2007-11-23 | 2007-11-23 | Direct freezing type coal water slurry gasification nozzle with expanding segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201172653Y true CN201172653Y (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720306001 Expired - Fee Related CN201172653Y (en) | 2007-11-23 | 2007-11-23 | Direct freezing type coal water slurry gasification nozzle with expanding segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201172653Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440309A (en) * | 2007-11-23 | 2009-05-27 | 山东科技大学 | Direct freezing type coal water slurry gasification nozzle with divergent section |
| CN102671518A (en) * | 2012-05-25 | 2012-09-19 | 中国华能集团清洁能源技术研究院有限公司 | Water-cooled air atomizing spray gun suitable for denitration adopting SNCR method |
| CN101486022B (en) * | 2009-02-19 | 2012-12-05 | 山东科技大学 | Prewarming internal mixed nozzle |
| CN104791784A (en) * | 2015-03-03 | 2015-07-22 | 杭州福鼎节能科技服务有限公司 | Coal water slurry pelletizing and gunite device |
| CN106040467A (en) * | 2016-07-19 | 2016-10-26 | 西安交通大学 | Dual fluid nozzle based on high-pressure water |
| CN106111377A (en) * | 2016-07-19 | 2016-11-16 | 西安交通大学 | A kind of two-fluid outer mixed mode nozzle based on water under high pressure |
-
2007
- 2007-11-23 CN CN 200720306001 patent/CN201172653Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440309A (en) * | 2007-11-23 | 2009-05-27 | 山东科技大学 | Direct freezing type coal water slurry gasification nozzle with divergent section |
| CN101440309B (en) * | 2007-11-23 | 2013-12-18 | 山东科技大学 | Direct freezing type coal water slurry gasification nozzle with divergent section |
| CN101486022B (en) * | 2009-02-19 | 2012-12-05 | 山东科技大学 | Prewarming internal mixed nozzle |
| CN102671518A (en) * | 2012-05-25 | 2012-09-19 | 中国华能集团清洁能源技术研究院有限公司 | Water-cooled air atomizing spray gun suitable for denitration adopting SNCR method |
| CN104791784A (en) * | 2015-03-03 | 2015-07-22 | 杭州福鼎节能科技服务有限公司 | Coal water slurry pelletizing and gunite device |
| CN106040467A (en) * | 2016-07-19 | 2016-10-26 | 西安交通大学 | Dual fluid nozzle based on high-pressure water |
| CN106111377A (en) * | 2016-07-19 | 2016-11-16 | 西安交通大学 | A kind of two-fluid outer mixed mode nozzle based on water under high pressure |
| CN106111377B (en) * | 2016-07-19 | 2018-09-21 | 陕西中核交大超洁能源技术有限公司 | A kind of two-fluid outer mixed mode nozzle based on high pressure water |
| CN106040467B (en) * | 2016-07-19 | 2019-01-04 | 陕西中核交大超洁能源技术有限公司 | A kind of two-fluid spray nozzle based on high pressure water |
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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: 20081231 Termination date: 20121123 |