CN102234163B - Method of heating sewage by using circulating fluidized bed boiler - Google Patents
Method of heating sewage by using circulating fluidized bed boiler Download PDFInfo
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- CN102234163B CN102234163B CN 201010155961 CN201010155961A CN102234163B CN 102234163 B CN102234163 B CN 102234163B CN 201010155961 CN201010155961 CN 201010155961 CN 201010155961 A CN201010155961 A CN 201010155961A CN 102234163 B CN102234163 B CN 102234163B
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- heating
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- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003546 flue gas Substances 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- 239000003129 oil well Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 28
- 239000012266 salt solution Substances 0.000 claims description 14
- 239000012267 brine Substances 0.000 claims description 7
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 230000003020 moisturizing effect Effects 0.000 claims description 3
- 235000014171 carbonated beverage Nutrition 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract 3
- 230000033558 biomineral tissue development Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- -1 expense is too high Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Details Of Fluid Heaters (AREA)
Abstract
The invention relates to a system of heating sewage by using a circulating fluidized bed boiler, characterized by that: deoxygenated salt free water is heated by the circulating fluidized bed boiler, then enters in a sub drum, passes through the branch of the sub drum and then enters a tandem heat exchanger cluster for heat exchange, and then goes back to a collecting drum; the cooled deoxygenated salt free water is subject to water replenishing through a water charging system, then is used as inflow of the circulating fluidized bed boiler; the oil field waste water enters in a second heat exchanger cluster for heating, after heating, enters in a flue gas waste heat recovery heat exchanger for heating, then enters in a catch water for the separation of water and steam; the after-separating stem enters a first heat exchanger cluster for heating until the steam is heated to superheated steam, enters a steam and water mixer, and is mixed with the water separated from the catch water, and the mixture is injected into an oil well. The system solves the problems of high cost of preparing salt free water required by the circulating fluidized bed boiler, large heat loss due to exhaust gas and sewage discharge, is good for embodying and popularizing the advantages of the circulating fluidized bed boiler, simultaneously reduces the large amount of sewage discharge with high mineralization in oil field, thus achieving the purposes of energy saving and emission reduction.
Description
Technical field
The present invention relates to a kind of water technology, particularly a kind of use circular fluid bed heating sewage method.
Background technology
" cleaning " coal combustion technology of the tool development prospect that Combustion technology of circulating fluidized is come from the Boiling Combustion technical development eighties a kind of novel, generally acknowledge.Fuel combustion conditions is good, fuel tolerance is wide, efficiency of combustion is high, thermo-efficiency is high, load adjustment ability is good, low temperature clean burns, environmental-protecting performance is good owing to have, lime-ash can access the plurality of advantages such as comprehensive utilization, the superiority of circular fluid bed is more and more extensively approved, and is developed rapidly.Circular fluid bed is a kind of efficient, oligosaprobic energy-conserving product.Since coming out, at home and abroad promoted rapidly and developed.The present steam injection characteristics in oil field are to annotate oil well after by injection boiler gas-firing or oil deoxidation soft water being heated to some mass dryness fractions.Will cause like this loss of high-quality Sweet natural gas and crude oil.Not only change coal combustion into by former gas-firing or oil after adopting circular fluid bed, and circular fluid bed is wide to fuel tolerance, the efficient height of boiler etc. is excellent.Quality requirements to coal is not high, and inferior coal at home reserves is wider with the industry that distributes, and is conducive to circular fluid bed is adopted in each oil field, the whole nation aspect steam injection popularization.But at present circular fluid bed can only heat deoxidation at present without salt solution, if a large amount of preparation of clear water without salt solution, expense is too high, wastes a large amount of water resourcess.And the high sewage of a large amount of salinities is adopted in the oil field, if be not used must be a large amount of efflux, do not meet like this policy of energy-saving and emission-reduction.If without salt solution, that expense is inconceivable especially a large amount of preparation of the higher sewage of salinity.If can use circular fluid bed indirect heating sewage, reach the purpose of oil field gas injection, the characteristics of circular fluid bed also can embody like that, have also reduced the high sewage discharge of a large amount of salinities in oil field.
Summary of the invention
The present invention be directed to circular fluid bed can not direct heating sewage and the oil field large amount of sewage directly problem of discharging that can not be used, a kind of use circular fluid bed heating sewage method has been proposed, solving circular fluid bed can only heat without salt solution, and the present situation of the wastewater disposition that the oil field preparation is reclaimed under possessing in large quantities without the salt solution cost is too high in a large number.Changed oil field gas injection and changed the situation of burning coal into from burning natural G﹠O, improved the situation of descending in large quantities wastewater disposition, the flue gas waste heat recovery interchanger has been put into the funnel temperature that the circular fluid bed afterbody has reduced boiler.
Technical scheme of the present invention is: a kind of use circular fluid bed heating sewage method, comprise that deoxidation is without brine circulation system and sewage heating system, deoxidation comprises a minute drum without brine circulation system, two groups of interchanger clusters, bag catchments, deoxidation is without the salt solution water charging system, circular fluid bed enters a minute drum after deoxidation is heated without salt solution, after undue drum branch is by the interchanger cluster heat exchange that enters series connection, get back to the bag that catchments, deoxidation after the cooling is re-used as the water inlet of circular fluid bed in the moisturizing through water charging system without salt solution, the interchanger cluster that sewage heating system and deoxidation share without brine circulation system, the sewage heating system also comprises the flue gas waste heat recovery interchanger, steam heater, steam separator, oilfield sewage at first enters second group of interchanger cluster heating in the sewage heating system, enter again the flue gas waste heat recovery interchanger after the heating and be heated into the sewage with certain mass dryness fraction, carry out carbonated drink separation to steam separator again, vapour after the separation enters first group of interchanger cluster heating, vapour is heated to be superheated vapour, enters steam heater and mix the rear oil well that injects by the water that steam separator is separated.
Beneficial effect of the present invention is: a kind of use circular fluid bed heating of the present invention sewage method, solved the salt-free water rate of the required preparation of use circular fluid bed with high, the problem of the large and sewage discharge that a large amount of salinities in oil field are high of heat loss due to exhaust gas, present method more is conducive to embody and promote the advantage of circular fluid bed, reduced simultaneously the high sewage discharge of a large amount of salinities in oil field, the purpose of accomplishing energy-saving and emission-reduction
Description of drawings
Fig. 1 circular fluid bed heating sink drainage schema;
Embodiment
Use as shown in Figure 1 circular fluid bed heating sink drainage schema, set up minute drum 1, first group of interchanger cluster 2, second group of interchanger cluster 3 at circular fluid bed 8 rear portions, catchment wrap 4, steam separator 5, steam heater 6, deoxidation be without salt solution water charging system 7 and flue gas waste heat recovery interchanger 9.Deoxidation without the brine recycling flow process is: circular fluid bed 8 enters minute drum 1 after deoxidation is heated without salt solution, undue drum 1 branch of warp is by entering first group of interchanger cluster 2 heat exchange, and then enter second group of interchanger cluster 3 heat exchange, then get back to the bag 4 that catchments, the deoxidation after the cooling is used in the water inlet as circular fluid bed in the moisturizing through water charging system 7 without salt solution.The flow process of sewage is: oilfield sewage at first enters second group of interchanger cluster 3 heat exchange, enter again flue gas waste heat recovery interchanger 9 after the heating and be heated into the sewage with certain mass dryness fraction, again through enter steam separator 5 vapour and moisture from, the vapour of separating enters first group of interchanger cluster 2 heat exchange and is heated to be superheated vapour, enters steam heater 6 and mixes the rear oil well that injects by the water that steam separator 5 is separated.
Claims (1)
1. one kind is used circular fluid bed heating sewage method, it is characterized in that, comprise that deoxidation is without brine circulation system and sewage heating system, deoxidation comprises a minute drum without brine circulation system, two groups of interchanger clusters, bag catchments, deoxidation is without the salt solution water charging system, circular fluid bed enters a minute drum after deoxidation is heated without salt solution, get back to the bag that catchments after the interchanger cluster heat exchange through entering series connection after the undue drum branch, deoxidation after the cooling is re-used as the water inlet of circular fluid bed in the moisturizing through water charging system without salt solution, sewage heating system and deoxidation are without brine circulation system common heat exchanger cluster, the sewage heating system also comprises the flue gas waste heat recovery interchanger, steam heater, steam separator, oilfield sewage at first enters second group of interchanger cluster heating in the sewage heating system, enter again the flue gas waste heat recovery interchanger after the heating and be heated into the sewage with certain mass dryness fraction, carry out carbonated drink separation to steam separator again, vapour after the separation enters first group of interchanger cluster heating, vapour is heated to be superheated vapour, enters steam heater and mix the rear oil well that injects by the water that steam separator is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010155961 CN102234163B (en) | 2010-04-27 | 2010-04-27 | Method of heating sewage by using circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010155961 CN102234163B (en) | 2010-04-27 | 2010-04-27 | Method of heating sewage by using circulating fluidized bed boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102234163A CN102234163A (en) | 2011-11-09 |
| CN102234163B true CN102234163B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010155961 Expired - Fee Related CN102234163B (en) | 2010-04-27 | 2010-04-27 | Method of heating sewage by using circulating fluidized bed boiler |
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| CN (1) | CN102234163B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796054B (en) * | 2012-07-07 | 2015-08-26 | 吕桐华 | Build the method for energy-saving and emission-reduction industry cluster and radical cure trimeric cyanamide contaminated food products |
| CN104266175B (en) * | 2014-09-30 | 2016-04-13 | 张宏伟 | Oil field gas injection overheated boiler overheating steam desalter and using method thereof |
| CN105293606B (en) * | 2015-10-23 | 2017-08-25 | 鲁西化工集团股份有限公司 | Oily waste liquor recovery system and recovery method during a kind of cyclohexanol production |
| CN105570863B (en) * | 2016-02-02 | 2017-04-19 | 沈阳工业大学通益科技有限公司 | Concentrated superheating system for wet steam injection boilers of oil field |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1709363A2 (en) * | 2003-11-26 | 2006-10-11 | Aquatech International Corporation | Method for production of high pressure steam from produced water |
| CN201053671Y (en) * | 2007-04-20 | 2008-04-30 | 赵文利 | Thick oil thermal recovery injection circulated fluid bed boiler system |
| CN101520172A (en) * | 2009-04-03 | 2009-09-02 | 上海晟煜科贸有限公司 | Energy-saving reclaiming process for residual heat of fume in boiler |
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- 2010-04-27 CN CN 201010155961 patent/CN102234163B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102234163A (en) | 2011-11-09 |
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Owner name: SHANGHAI SHENGYU TECHNICAL CO., LTD. Free format text: FORMER NAME: SHANGHAI CHENGYU SCIENCE AND TRADE CO., LTD. |
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Address after: 201100 No. 1188 Guanghua Road, Xhenzhuang Industrial Zone, Shanghai, Minhang District Patentee after: SHANGHAI SHENGYU TECHNOLOGY Co.,Ltd. Address before: 200233 room 103, No. 2410, Xuhui District, Shanghai, Caobao Road Patentee before: Shanghai Shengyu Technical Commercial Co.,Ltd. |
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Granted publication date: 20130116 |