CN201567316U - Circularly cooling mechanism for coal gasifier - Google Patents
Circularly cooling mechanism for coal gasifier Download PDFInfo
- Publication number
- CN201567316U CN201567316U CN 200920198852 CN200920198852U CN201567316U CN 201567316 U CN201567316 U CN 201567316U CN 200920198852 CN200920198852 CN 200920198852 CN 200920198852 U CN200920198852 U CN 200920198852U CN 201567316 U CN201567316 U CN 201567316U
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- Prior art keywords
- water
- cooling
- muffle
- muffle cover
- cooling water
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- Expired - Lifetime
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- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000498 cooling water Substances 0.000 claims abstract description 39
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 4
- 238000002309 gasification Methods 0.000 abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000003134 recirculating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a circularly cooling mechanism for a coal gasifier. The mechanism comprises a gasifier housing; a burner nozzle muffle corresponding to the coal gasifier and other components requiring to be cooled are respectively arranged in a muffle cooling water channel in the gasification furnace housing and other cooling water channels; inlets of the muffle cooling water channel and the other cooling water channels are connected with a water outlet manifold; the water outlet manifold is connected with a circulating water outlet of a stream drum; and outlets of the muffle cooling water channel and the other cooling water channels are connected with a circulating water return port of the stream drum through a return manifold. The mechanism is characterized in that the muffle cooling water channel is connected with the water outlet manifold through a first branch pipe; the outlets of the other cooling water channels are connected with the water outlet manifold through a second branch pipe; a first water pump is arranged on the first branch pipe; and a second water pump is arranged on the second branch pipe. Compared with the prior art, the utility model increases the total circulating water amount of a boiler, protects the muffle from being burnt-through, and eliminate the gasifier shutdown caused by the damage of the muffle.
Description
Technical field
The present invention relates to the cooling body of coal gasifier.
Background technology
From the whole world, coal reserves is calculated with calorific value much larger than oil and natural gas, and coal accounts for 64%, crude oil 19%, Sweet natural gas 17%.According to measuring and calculating, with present recovery rate, global crude oil can be exploited 40.5, and Sweet natural gas can be exploited 66.7, and coal can be exploited 164 years.Simultaneously, in past 20 years, the proven reserve of coal have increased more than 50%, extremely disperse because coal distributes, and brainstrust thinks that the actual reserves of coal will be much higher than present written numeral.And China is the country of " oil starvation, weak breath, relative rich coal ", and the basic characteristics of energy structure are oil and natural gas reserves relative deficiency, and the reserves of coal are abundant relatively, and coal is the topmost fossil energy resource of China.
As the maximum developing country of world population, the energy resource supply that China faced and the dual-pressure of environment protection have become the bottleneck that limits China's Economic development.Therefore,, rationally utilize Energy resources, the especially coal resources of China, must exploitation adopt novel clean energy and energy substitution technology thereof at the Energy resources characteristic of China's " rich coal, few oil ".So the pressurized air flow bed gasification technology comparatively efficient, environmental protection that generally adopts has now obtained widespread usage in China.Wherein the vapourizing furnace of water-cooled wall type accounts for suitable large portion, and from energy consumption, efficient and advance, the vapourizing furnace of water-cooled wall type is the main flow of following gasification technology.
In the prior art, other water wall common boiler circulating water system reduces wall pipe temperature in the cooling employing of muffle cover and the vapourizing furnace.As shown in Figure 2, vapourizing furnace is made up of vessel shell 1 ' and internals one water wall 4 ', installs in gasification burner tip and burner muffle cover 5 ' coupling that vessel shell is packed into.Gasification, and combustion is reflected at indoor the carrying out that column, cage water wall center on, and combustion reaction temperature is between 1500 ℃～1700 ℃.When normal running, gasifier water-cooling wall wall has slag blanket, forms the structure with the anti-slag of slag.Feed saturated oiler feed in the water wall tube.Whole gasifier water-cooling wall circulation route is: extraneous feedwater enters drum 2 ' by pipeline, the heat exchange temperature enters boiler cycle pump 3 ' after being increased to the water saturation temperature, after the boiler cycle pump pressurization, pass through distribution header 7 ' again, boiler recirculated water enters each parts of water wall, comprises burner muffle cover.Boiler recirculated water part evaporation behind the heat-obtaining, form and import house steward after steam water interface comes out from each parts of gasifier water-cooling wall, after entering drum and carrying out vapour, water sepn, sub-fraction steam goes out drum, most of boiler recirculated water enters boiler cycle pump again again with the new feedwater of going into of mending, and begins another and takes turns circulation.
The boiler quantity of circulating water that enters vapourizing furnace is determined, by being installed in restriction orifice aperture in the single tube pipe and the single tube quantity decision of forming the water wall parts in the water wall parts.The scantlings of the structure of water wall parts is certain, and the single tube specification of forming water wall is the same, and after each part dimension of gasifier water-cooling wall was determined, the circulation boiler water yield of passing through in each water wall parts depended primarily on the solitary pore panel aperture.In vapourizing furnace design, the orifice plate welded and installed in each parts of gasifier water-cooling wall in single tube, determine the orifice plate aperture after, the quantity of circulating water that passes through in each parts is determined.Take place under the cataclysm situation at vapourizing furnace load, especially under the coal change conditions or ature of coal when unstable, reaction chamber temperature raises very fast, the attenuation of water wall slag blanket, and the heat that passes to water wall increases.In general, because the circulation boiler water yield in the water wall is bigger, the evaporation of the saturation water of few part can absorb the heat of these increases, so most of gasifier water-cooling wall energy adapts to this violent fluctuation of load.But, for the burner muffle cover that is in the gasifier temperature highest point, too many when raising at gasifier temperature, during water wall slag blanket attenuate, obviously, the saturation water steam output strengthens in the muffle cover water wall tube, evaporates steam bubble especially in a large number and forms at water wall tube inwall place, if the evaporation steam bubble can not be recycled water at once and take away, inwall will form steam film.And steam film is the poor conductor of heat, and after steam film formed, muffle cover water wall wall temperature can sharply raise, and surpasses the pipeline melt temperature, causes muffle cover part to be burnt at last.
Summary of the invention
Technical problem to be solved by this invention is the present situation at prior art; a kind of coal gasifier recirculating cooling water system is provided; it is by being provided with burner muffle cover boiler recirculating cooling water system separately; add the cauldron quantity of circulating water, thereby reach the purpose of avoiding muffle cover inwall to form steam film, protect the muffle cover not burnt.
Another technical problem to be solved by this invention provides the adjustable coal gasifier recirculating cooling water system of a kind of circulating water flow.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this coal gasifier cooling body, comprise the vapourizing furnace housing, burner muffle cover corresponding to vapourizing furnace needs the refrigerative parts to be separately positioned on the intravital muffle cover of vapourizing furnace shell cooling-water duct and other cooling-water duct with other, the inlet of described muffle cover cooling-water duct and other cooling-water duct all is connected outfall sewer, this outfall sewer connects the circulating water outlet of drum, the outlet of muffle cover cooling-water duct and other cooling-water duct is connected the recirculated water refluxing opening of drum by return main, it is characterized in that described muffle cover cooling-water duct is by first described outfall sewer of pipe coupling, the outlet of described other cooling-water duct is by second pipe coupling outfall sewer, and on first arm, be provided with first water pump, on second arm, be provided with second water pump.
By muffle cover cooling water pipeline is set separately; increased muffle hood water-circulating amount; strengthened single tube water flow velocity in the muffle cover; strengthened the exchange capability of heat of muffle cover; even change when causing the vapourizing furnace temperature of reaction to raise in gasification operation big ups and downs or coal; the present invention still can effectively protect burner muffle cover; thereby avoiding muffle cover inwall to form steam film causes the muffle cover to be burnt; prolonged muffle cover work-ing life; reduce the shut-down that causes gasification because of muffle cover fault, improved the reliability of gasification operation.
In order to make this water coolant mechanism can better be suitable for various operating modes, use the energy effectively and not lavishly, can also be provided with on described second arm and can regulate the water regulating valve that enters the described muffle cover cooling-water duct water yield.
Compared with prior art, the present invention is owing to be provided with the recirculated cooling water suction culvert of burner muffle cover separately, strengthened the total quantity of circulating water of boiler, avoid the formation of muffle cover inwall steam film, protection muffle cover is not burnt, the vapourizing furnace that elimination causes because of the muffle cover damages stops, and improves the reliability and the online rate of gasification installation, and moving for the long-term stability of vapourizing furnace has positive effect; The recirculated water water regulating valve is set on first arm in addition, in time regulates muffle cover confluent, can use the energy effectively and not lavishly.
Description of drawings
Fig. 1 is the workflow synoptic diagram of the embodiment of the invention;
Fig. 2 is the workflow synoptic diagram in the background technology of the present invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, this coal gasifier cooling body comprises vapourizing furnace housing 1, be arranged on burner muffle cover 5 and other parts (not shown) in the vapourizing furnace housing 1, need the refrigerative parts to be respectively arranged with muffle cover cooling-water duct 6 and other cooling-water duct 4 corresponding to burner muffle cover 5 and other, the inlet of muffle cover cooling-water duct 6 connects first arm 8, first arm 8 connects outfall sewer 7, is provided with first water pump 16 and water regulating valve 18 on first arm 8; The outlet of other cooling-water duct 4 connects outfall sewer 7 by second arm 9, second arm 9 has many, each second arm is aggregated into distribution header 17 backs and connects outfall sewer, distribution header 17 is provided with second water pump 3, outfall sewer 7 connects the circulating water outlet of drum 2, and the outlet of muffle cover cooling-water duct 6 and other cooling-water duct 4 is connected the recirculated water refluxing opening of drum 2 by return main 12.
Its working process is: extraneous feedwater 15 enters drum 2 by pipeline, enters after the heat exchange temperature is increased to the water saturation temperature and enters the distribution header 17 and first arm 8 respectively.Second water pump 3 of most of recirculated water through being located in the distribution header 17 pressurizes after distribution header 17 enters each second arm 9, enters other cooling-water duct 4 again, and the parts that need heat exchange in the vapourizing furnace housing 1 are carried out cooling heat transferring.Part recirculated water through entering muffle cover cooling-water duct 6 behind water regulating valve 18 regulating pondages, carries out cooling heat transferring to burner muffle cover 5 after being located at first water pump, 16 pressurizations on first arm 8.Circulation steam water interface after the heat exchange imports return main 12, enter drum 2 through the recirculated water refluxing opening, in drum 2, carry out vapour, water sepn after, sub-fraction steam 13 goes out drum, most of recirculated water reenters outfall sewer 7 with the new feedwater of going into of mending, and begins another and takes turns circulation.
Claims (2)
1. coal gasifier cooling body, comprise the vapourizing furnace housing, burner muffle cover corresponding to vapourizing furnace needs the refrigerative parts to be separately positioned on the intravital muffle cover of vapourizing furnace shell cooling-water duct and other cooling-water duct with other, the inlet of described muffle cover cooling-water duct and other cooling-water duct all is connected outfall sewer, this outfall sewer connects the circulating water outlet of drum, the outlet of muffle cover cooling-water duct and other cooling-water duct is connected the recirculated water refluxing opening of drum by return main, it is characterized in that described muffle cover cooling-water duct is by first described outfall sewer of pipe coupling, the outlet of described other cooling-water duct is by second pipe coupling outfall sewer, and on first arm, be provided with first water pump, on second arm, be provided with second water pump.
2. according to the described coal gasifier cooling body of claim 1, it is characterized in that also being provided with on described second arm and can regulate the water regulating valve that enters the described muffle cover cooling-water duct water yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920198852 CN201567316U (en) | 2009-10-19 | 2009-10-19 | Circularly cooling mechanism for coal gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920198852 CN201567316U (en) | 2009-10-19 | 2009-10-19 | Circularly cooling mechanism for coal gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201567316U true CN201567316U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920198852 Expired - Lifetime CN201567316U (en) | 2009-10-19 | 2009-10-19 | Circularly cooling mechanism for coal gasifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN201567316U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425794A (en) * | 2011-12-28 | 2012-04-25 | 中国东方电气集团有限公司 | Burner nozzle cooling water system |
| CN104232167A (en) * | 2014-09-22 | 2014-12-24 | 清华大学 | Coal gasification circulating water system |
| CN104745233A (en) * | 2015-02-12 | 2015-07-01 | 哈尔滨工业大学 | Device for integrally forming natural water cycle by gasifier water cycle and waste heat boiler |
| CN108913216A (en) * | 2018-08-06 | 2018-11-30 | 唐山科源环保技术装备有限公司 | The method for controlling the self-produced vapor superpressure discharge of gas generator |
-
2009
- 2009-10-19 CN CN 200920198852 patent/CN201567316U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425794A (en) * | 2011-12-28 | 2012-04-25 | 中国东方电气集团有限公司 | Burner nozzle cooling water system |
| CN104232167A (en) * | 2014-09-22 | 2014-12-24 | 清华大学 | Coal gasification circulating water system |
| CN104745233A (en) * | 2015-02-12 | 2015-07-01 | 哈尔滨工业大学 | Device for integrally forming natural water cycle by gasifier water cycle and waste heat boiler |
| CN108913216A (en) * | 2018-08-06 | 2018-11-30 | 唐山科源环保技术装备有限公司 | The method for controlling the self-produced vapor superpressure discharge of gas generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: China Petrochemical Group Corp. Patentee after: SINOPEC Ningbo Engineering Company Limited Patentee after: SINOPEC Ningbo Technology Research Institute Co., Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Sinopec Ningbo Engineering Co., Ltd. Patentee before: Sinopec Ningbo Institute of Technology |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
|
| CX01 | Expiry of patent term |