CN201053671Y - Thick oil thermal recovery injection circulated fluid bed boiler system - Google Patents
Thick oil thermal recovery injection circulated fluid bed boiler system Download PDFInfo
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- CN201053671Y CN201053671Y CNU2007201429912U CN200720142991U CN201053671Y CN 201053671 Y CN201053671 Y CN 201053671Y CN U2007201429912 U CNU2007201429912 U CN U2007201429912U CN 200720142991 U CN200720142991 U CN 200720142991U CN 201053671 Y CN201053671 Y CN 201053671Y
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Abstract
A heavy oil thermal recovery steam injection circulation fluidized bed boiler system comprises a boiler, a main cyclone separator and a return feeder, wherein, the top of the body of the boiler is provided with a main drum which is divided into a left segment, a middle segment and a right segment by clapboards, the bottom of each segment is provided with a descending pipe group; two sides of the main drum are provided with a left auxiliary drum and a right auxiliary drum; the top parts of the left auxiliary drum and the right auxiliary part are respectively provided with a left auxiliary cyclone separator and a right auxiliary cyclone separator; the bottoms of the left and right auxiliary drums are provided with descending pipe groups; each descending pipe group is communicated with a lower collecting box in the furnace; the lower collecting box is communicated with a steam chest of the main drum through an ascending pipe group in the furnace; the left segment and the right segment of the main drum are respectively communicated with the left auxiliary drum and the right auxiliary drum through draining pipes; a saturated steam output pipe at the top of the main drum is communicated with a steam delivery main line through a primary superheater and a secondary superheater; the steam delivery main line is communicated with a steam injection well through a branch. The system adopts the method of segmented evaporation to improve the steam quality, and directly uses the reuse water sent from an oilfield sewage treatment station, thereby achieving the aim of replacing oil with coal.
Description
Technical field
The utility model relates to the oil-field thick-oil thermal recovery equipment.
Background technology
In oil exploitation, because the oily viscosity in some oil field is higher, need the steam of higher temperature to inject oil well, with thinned oil, viscosity of thickened oil is reduced, allow crude oil in oil well, exploit easily.
The heat-collecting steam boiler that widely uses all is combustion gas, fuel oil HVDC moist steam boiler at present, this boiler acts as a fuel with crude oil or natural gas, because the price of crude oil and natural gas is higher, increased cost for oil production, and, reduced crude oil as commodity because the crude oil of considerable part has been consumed in oil field self, crude oil is a kind of important raw material of industry, be non-renewable precious resources, if it is all act as a fuel use, also very unfortunate.
The steam that HVDC moist steam boiler produces is sent in the well by pipeline, inject oil reservoir, a boiler often will be annotated several mouthfuls of wells, or several boilers are with walking main line dispensing number mouthful well again, because the difference of each well vapor absorption capacity and pipeline configuration length, the steam flow and the quality of steam that are injected into each well differ greatly, the well injection rate that has is few, oil production is also few relatively, the well injection rate that has is excessive to cause waste, the easy vapour that forms is scurried, and gives to exploit from now on and causes irretrievable loss, and therefore annotating vapour distribution and metering is a problem that urgency is to be solved.And the saturated vapor of existing HVDC moist steam boiler for producing, water content is big, contains the water more than 20%, mass dryness fraction 50-80%, and quality of steam is low, and moist steam is a biphase gas and liquid flow, is difficult to annotate well vapour distribution and metering.
China is the abundant country of an oil shortage and coal reserves, if can replace crude oil, the natural gas fuel as injection boiler with coal, will reduce the oil extraction cost, the petroleum resources of saves valuable.
Coal-burning boiler is ripe prior art, but common coal-burning boiler is not the ideal substitute of injection boiler because existing coal-burning boiler give the water quality standard height, use high-level desalted water could produce high-quality high-temperature high-pressure overheat steam.And oilfield gas injection boiler institute water is the recycle-water of sending here from the disposing polluted water in oil station at present, and its salinity is too high, and the drum of existing boiler can't directly use.
The utility model content
The purpose of this utility model provides a kind of thick oil heat production steam injection circulating fluidized bed boiler systems, adopt the method for stage evaporation to improve steam quality, the recycle-water that can directly use the disposing polluted water in oil station to send here, thereby realization replace oil with coal, native system is produced the superheated steam of 100% mass dryness fraction, can conveniently injection steam be measured and distribute.
The purpose of this utility model is achieved in that
A kind of thick oil heat production steam injection circulating fluidized bed boiler systems, this system comprises boiler, main cyclone separator, material returning device, deduster, air-introduced machine, flue and a superheater, secondary superheater, boiler has body of heater, the exhaust opening of upper of furnace body is connected with the inlet of main cyclone separator, the flying dust outlet of main cyclone separator lower end is connected with material returning device through piping, material returning device is communicated with the combustion chamber of bottom of furnace body through piping, the exhaust outlet of main cyclone separator is communicated with the inlet of deduster through flue, first superheater is arranged between the inlet of body of heater exhaust opening and main cyclone separator, second superheater is arranged in the flue, it is characterized in that: main drum is equipped with at the top of described body of heater, stove water is equipped with in the inner chamber bottom of main drum, inner chamber top is vaporium, the inner chamber bottom of main drum is provided with two dividing plates, this two dividing plate is separated into a left side with the inner chamber of main drum, in, right section, this two dividing plate is provided with horizontal communicating pipe, make the stage casing and a left side of main drum communicating pipe, right section is communicated with, the left side of main drum, in, right section bottom is equipped with first respectively, second, the 3rd down-comer group, first, second, the 3rd down-comer group is respectively with first, second, the 3rd next part case is communicated with, and first, second, the 3rd next part case is respectively through being arranged on first in the body of heater, second, the 3rd tedge group is communicated with described vaporium; The both sides external of main drum is provided with left and right secondary drum, the top of left and right secondary drum is respectively arranged with left and right secondary cyclone separator, the bottom of left and right secondary drum is equipped with the 4th, the 5th down-comer group respectively, four, the 5th down-comer group is communicated with the 4th, the 5th next part case respectively, four, the 5th next part case is communicated with the inlet of left and right secondary cyclone separator through the 4th, the 5th tedge group that is arranged in the body of heater respectively, and the steam (vapor) outlet of left and right secondary cyclone separator is communicated with the vaporium of main drum through left and right connecting tube respectively; Left and right section of described main drum is communicated with left and right secondary drum through blow-off pipe respectively, the top of main drum is provided with the saturated vapor efferent duct, this saturated vapor efferent duct is communicated with a superheater through the primary steam return duct, No. one time superheater is communicated with secondary superheater through the indirect steam return duct, secondary superheater is communicated with the steam conveying route, and the steam conveying route carries branch line to be communicated with notes vapour well through steam.
This system also comprises air blast No. one time, the secondary air blast, an air feed pipe, secondary air feed pipe, the primary air preheater, the auxiliary air preheater, feed pipe, water pump, economizer, described primary air preheater, the auxiliary air preheater, economizer all is arranged in the flue, No. one time air blast is communicated with an air feed pipe through the primary air preheater, the secondary air blast is communicated with secondary air feed pipe through the auxiliary air preheater, an air feed pipe, secondary air feed pipe is communicated with the combustion chamber of bottom of furnace body, water pump is communicated with feed pipe through economizer, and feed pipe is communicated with main drum.
Described steam conveying route and steam are carried all to be equipped with on the branch line and are annotated the vapour distributor.
The utility model has following positive beneficial effect:
One, native system adopts the circulating fluidized bed combustion coal boiler, and for thickened oil recovery provides steam: CFBB is produced superheated steam, is satisfying under the situation of steam injection pressure, and temperature can reach 450 ℃.The unit carrier takes the heat content on stratum to more than existing combustion gas, fuel oil single flow steam generation boiler.
Two, CFBB is produced superheated steam, mass dryness fraction 100%, superheated steam quality height, it is single medium, can easily injection steam be measured and distribute, solved the unmeasurable problem of gas-liquid two-phase moist steam in the past, for heavy oil development provides accurate data.
Three, the oil field boiler feed water quality is relatively poor, and the drum of native system adopts the method for stage evaporation to improve steam quality, with dividing plate the water capacity of main drum is separated into three sections.The salinity minimum of stage casing stove water is called clean section, and all the other two sections salinity are bigger, are called the salt section.Each section all has down-comer group and the tedge group of oneself, form independently closed circuit, feedwater directly enters and connects the more zone (being called clean section) that is heated, a part of stove water of clean section connects the less zone (being called the salt section) that is heated from flowing into communicating pipe, the blowdown of main drum is drawn from the salt section, further carry out salt solution by left and right secondary drum and separate, the stove water salinity of clean section is lower, and the steam quality of generation is higher; The boiler(water)concentration of salt section is higher, and the steam quality of generation is relatively poor. but the evaporation capacity of salt section generally only accounts for 5%～25% of boiler total evaporation, most steam are from clean section generation of stove water quality better, and both mixed total steam qualities still improve to some extent.
Four, drum adopts the stage evaporation technology, so native system can directly use the very high recycle-water of sending here from the disposing polluted water in oil station of salinity, and the steam quality height of generation, the steam supply radius increases, and can reach more than 8 kilometers, can concentrate like this and build a station; The heat content that the unit carrier takes bottom to is many, and the vapour amount that identical stratum is injected reduces; Improve whole notes and adopted the defeated total system efficient of branch, energy-conservation considerable.
Five, native system can be realized replace oil with coal, reduces the consumption of heavy crude heat extraction fuel oil, natural gas, and the petroleum resources of saves valuable reduce cost for oil production, improve the crude oil commodity rate; The coal in China reserves are abundant, and the circulating fluidized bed combustion coal steam coal is supplied with guaranteed.Circulating fluidized bed combustion coal boiler ash comprehensive utilization is made good use of, and lime-ash is done construction material, can improve local economy.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the broken section enlarged drawing of Fig. 1.
Fig. 3 is the cutaway view Amplified image of drum among Fig. 1.
Fig. 4 is the structural representation of notes vapour distributor of the present utility model.
The specific embodiment
Number in the figure
1 first down-comer group, 11 first next part casees, 111 first tedge groups
2 second down-comer groups, 22 second next part casees, 222 second tedge groups
3 the 3rd down-comer groups 33 the 3rd next part case 333 the 3rd tedge group
4 the 4th down-comer groups 44 the 4th next part case 444 the 4th tedge group
5 the 5th down-comer groups 55 the 5th next part case 555 the 5th tedge group
6 left secondary drum 601 blow-off pipes 602 salt discharge pipes 603 stove water
7 right secondary drum 701 blow-off pipes 702 salt discharge pipes 703 stove water
8 left secondary cyclone separators, 801 Left-wing Federations take over 9 right secondary cyclone separator 901 right connecting tubes
10 drums, 100 vaporiums, 101 stove water, 102 stove water, 103 stove water
104 dividing plates, 105 dividing plates, 107 communicating pipes of 106 communicating pipes
No. 121 superheaters of 12 bodies of heater 13 main cyclone separator 14 material returning devices
15 flues, 151 primary air preheaters, 152 auxiliary air preheaters
153 economizers, 154 secondary superheaters
No. 18 air blasts of 16 dedusters, 17 air-introduced machines 19 secondary air blasts
20 1 times air feed pipe 21 secondary air feed pipes 23 chimneys 24 add coal bunker
25 water pumps 26 add the lime bucket
27 steam conveying routes, 28 steam carry branch line 29 to annotate the vapour distributor
291 flow transmitters, 292 flow controllers, 293 executing agencies
294 temperature compensators, 295 pressure compensators
30 annotate vapour well 31 feed pipes 32 saturated vapor efferent ducts 34 burners
35 direct-contact desuperheaters, 36 primary steam return duct, 37 indirect steam return duct
Please refer to Fig. 1, Fig. 2, the utility model is a kind of thick oil heat production steam injection circulating fluidized bed boiler systems, this system comprise boiler, main cyclone separator, material returning device, deduster, air-introduced machine, flue and once, secondary superheater.
Boiler has body of heater 12, the exhaust opening on body of heater 12 tops is connected with the inlet of main cyclone separator 13, the flying dust outlet of main cyclone separator 13 lower ends is connected with material returning device 14 through piping, material returning device 14 is communicated with through the combustion chamber of piping with body of heater 12 bottoms, the exhaust outlet of main cyclone separator 13 is communicated with the inlet of deduster 16 through flue 15, No. one time superheater 121 is arranged between the inlet of body of heater 12 exhaust openings and main cyclone separator 13, and secondary superheater 154 is arranged in the flue 15.
Please refer to Fig. 1, Fig. 2, Fig. 3, main drum 10 is equipped with at the top of body of heater 12, main drum 10 is horizontal drum, stove water is equipped with in the inner chamber bottom of main drum 10, inner chamber top is vaporium 100, and the inner chamber bottom of main drum is provided with two dividing plates 104,105, and these two dividing plates, 104,105 inner chambers with main drum 10 are separated into the left, center, right section, be respectively arranged with horizontal communicating pipe 106,107 on this two dividing plate 104,105, the stove water 102 in stage casing is communicated with the stove water 101 of left side section.The stove water 102 in stage casing is communicated with the stove water 103 of right section.
The section bottom, a left side of main drum 10 is equipped with the first down-comer group, 1, the first down-comer group 1 and is communicated with the first next part case 11, and the first next part case 11 is communicated with the vaporium 100 of main drum through the first tedge group 111 that is arranged in the body of heater 12.
The bottom, stage casing of main drum 10 is equipped with the second down-comer group, 2, the second down-comer groups 2 and is communicated with the second next part case 22, and the second next part case 22 is communicated with the vaporium 100 of main drum through the second tedge group 222 that is arranged in the body of heater 12.
The right section bottom of main drum 10 is equipped with the 3rd down-comer group 3, the three down-comer groups 3 and is communicated with the 3rd next part case 33, and the 3rd next part case 33 is communicated with the vaporium 100 of main drum through the 3rd tedge group 333 that is arranged in the body of heater 12,
The both sides external of main drum 10 is provided with vertical left and right secondary drum 6,7, and the top of left and right secondary drum 6,7 is respectively arranged with left and right secondary cyclone separator 8,9.
The 4th down-comer group 4 is equipped with in the bottom of the secondary drum 6 in a left side, the 4th down-comer group 4 is communicated with the 4th next part case 44, the 4th next part case 44 is communicated with the inlet of left secondary cyclonic separation 8 through the 4th tedge groups 444 that are arranged in the body of heater 12, and the steam (vapor) outlet of left secondary cyclone separator 8 passes through the Left-wing Federation and takes over 801 and be communicated with the vaporium 100 of main drum 10.
Five down-comer groups 5 are equipped with in the bottom of right secondary drum 7, the 5th down-comer group 5 is communicated with the 5th next part case 55, the 5th next part case 55 is communicated with the inlet of right secondary cyclone separator 9 through the 5th tedge group 555 that is arranged in the body of heater 12, and the steam (vapor) outlet of right secondary cyclone separator 9 is communicated with the vaporium 100 of main drum 10 through right connecting tube 901.
The left side section 101 of main drum 10 is communicated with left secondary drum 6 through blow-off pipe 601, and the right section 103 of main drum 10 is communicated with right secondary drum 7 through blow-off pipe 701.
The top of main drum 10 is provided with saturated vapor efferent duct 32, this saturated vapor efferent duct 32 is communicated with a superheater 121 through primary steam return duct 36, No. one time superheater 121 is communicated with secondary superheater 154 through indirect steam return duct 37, indirect steam return duct 37 is provided with direct-contact desuperheater 35, to lower the temperature, secondary superheater 154 is communicated with steam conveying route 27, and steam conveying route 27 carries branch line 28 to be communicated with notes vapour well 30 through steam.
Native system also comprises air blast 18 No. one time, secondary air blast 19, an air feed pipe 20, secondary air feed pipe 21, primary air preheater 151, auxiliary air preheater 152, feed pipe 31, water pump 25, economizer 153, primary air preheater 151, auxiliary air preheater 152, economizer 153 all is arranged in the vertical flue 15, No. one time air blast 18 is communicated with an air feed pipe 20 through primary air preheater 151, secondary air blast 19 is communicated with secondary air feed pipe 21 through auxiliary air preheater 152, an air feed pipe 20, secondary air feed pipe 21 is communicated with the combustion chamber of body of heater 12 bottoms, water pump 25 is communicated with feed pipe 31 through economizer 153, and feed pipe 31 is communicated with main drum 10.
Operation principle of the present utility model is as follows:
Add water-coal-slurry or coal dust in adding coal bunker 24, add the lime stone and the quartz sand powder of proper proportion in adding lime bucket 26, lime stone and quartz sand powder are fluidizing agent, with fire box temperature control suitably, make water-coal-slurry or coal dust clean combustion in body of heater 12.
After air process primary air preheater 151 preheatings of air blast 18 inputs, send in the body of heater 12 by an air feed pipe 20.
After air process auxiliary air preheater 152 preheatings of secondary air blast 19 inputs, send in the body of heater 12 by secondary air feed pipe 21.The aftercombustion air is strengthened fuel and air agitation, and plays the effect of control fire box temperature.
The stove water that the native system drum uses be that water pump 25 is input to recycle-water in the convection bank of economizer 153 inside from disposing polluted water in oil station recycle-water, utilizes the interior high-temperature flue gas of flue 15 the recycle-water preheating, sends into main drum 10 by feed pipe 31 again.
Please refer to Fig. 3, native system adopts three sections Steaming structures, improves the saturated vapor quality, and main drum 10 inside are as first, second section, and this two-stage evaporation amount is about 15%～18%.As the 3rd section, the 3rd section evaporation capacity is about 10%～12% with left and right secondary drum 6,7.
Recycle-water after the preheating enters the stage casing of main drum 10 through feed pipe 31, and the salt content of the stove water 102 in stage casing is lower, is called clean section (salt section one), and the salt content of the stove water 101,103 in left and right section is slightly high, is called salt section two.
Native system adopts Natural Circulation, the stove water 102 in main drum stage casing enters the second next part case 22 through the second down-comer group 2 under the gravity effect, heat through body of heater 12 high temperature, stove water becomes steam in the second tedge group 222, steam turns back in the vaporium 100 of main drum 10, and the lower floor of stage casing stove water 102 is in entering left and right section of main drum communicating pipe 106,107 respectively.
The quantity of pipeline is more in the second tedge group 222, thereby heat affected zone is bigger, the negligible amounts of pipeline in the first, the 3rd tedge group 111,333, thereby heat affected zone is less.
The blowdown of main drum 10 is drawn from left and right section, and left and right section of main drum 10 is the salt section two of native system, and the salt content of the stove water 101,103 in left and right section is higher than the stove water 102 in the stage casing.
The stove water 101 of main drum 10 left side sections is communicated with left secondary drum 6 through blow-off pipe 601, and the stove water 103 of main drum 10 right sections is communicated with right secondary drum 7 through blow-off pipe 701.
The salinity of stove water 603 and stove water 703 is the highest, salt section three for native system, the bottom of left and right secondary drum 6,7 is respectively arranged with salt discharge pipe 602,702, left and right secondary drum 6,7 is respectively by 602, the 702 continuous salt discharges of salt discharge pipe, to keep whole system stove salinity water not exceed standard, the salt discharge rate is approximately 5%.
Stage casing stove water 102 salinity are minimum, are clean section of native system, and the steam quality of its generation is higher; The stove water salinity of salt section two and salt section three raises successively, the steam quality that produces is relatively poor, but the evaporation capacity of salt section two and salt section three only accounts for 5%～25% of drum total evaporation, and most steam are from clean section generation of stove water quality better, and both mixed total steam qualities still improve to some extent.Through the salt EQUILIBRIUM CALCULATION FOR PROCESS, (recycle-water) salt content is 100mg/L in feedwater, and salt section two salt content are 500mg/L, and salt section three salt content are 2500mg/L.
The saturated vapor that main drum 10 produces is through superheater 121, secondary superheater 154, becomes mass dryness fraction and be 100% supersaturated vapor, carries branch line 28 to deliver to through steam conveying route 27, steam and respectively annotates in the vapour well 30.
Please refer to Fig. 4, steam conveying route 27 and steam are carried to be equipped with on the branch line 28 and are annotated vapour distributor 29, annotating vapour distributor 29 is made up of flow transmitter 291, flow controller 292, executing agency 293, pressure compensator 294, temperature compensator 295, because steam is mass dryness fraction 100% supersaturated vapor, be unidirectional medium, measure easily, each part mentioned above can all adopt prior art.Flow controller 292 is made of single-chip microcomputer, and has communication function, and executing agency 293 is made of control valve.Carry the steam pressure signal of branch line 28 behind process pressure compensator 294, temperature compensator 295, to be transported to flow transmitter 291 from steam conveying route 27 and steam, handle through the single-chip microcomputer that flow transmitter 291 is given in the flow controller 292, single-chip microcomputer is according to the setting of program, control to adjust valve events, thereby reach the purpose of automatic control.Realize annotating vapour distribution and metering, improve heavy oil development efficient, recovery ratio can improve more than 20%.
Claims (3)
1. thick oil heat production steam injection circulating fluidized bed boiler systems, this system comprises boiler, main cyclone separator, material returning device, deduster, air-introduced machine, flue and a superheater, secondary superheater, boiler has body of heater, the exhaust opening of upper of furnace body is connected with the inlet of main cyclone separator, the flying dust outlet of main cyclone separator lower end is connected with material returning device through piping, material returning device is communicated with the combustion chamber of bottom of furnace body through piping, the exhaust outlet of main cyclone separator is communicated with the inlet of deduster through flue, first superheater is arranged between the inlet of body of heater exhaust opening and main cyclone separator, second superheater is arranged in the flue, it is characterized in that:
Main drum is equipped with at the top of described body of heater, stove water is equipped with in the inner chamber bottom of main drum, inner chamber top is vaporium, the inner chamber bottom of main drum is provided with two dividing plates, this two dividing plate is separated into a left side with the inner chamber of main drum, in, right section, this two dividing plate is provided with horizontal communicating pipe, make the stage casing and a left side of main drum communicating pipe, right section is communicated with, the left side of main drum, in, right section bottom is equipped with first respectively, second, the 3rd down-comer group, first, second, the 3rd down-comer group is respectively with first, second, the 3rd next part case is communicated with, and first, second, the 3rd next part case is respectively through being arranged on first in the body of heater, second, the 3rd tedge group is communicated with described vaporium; The both sides external of main drum is provided with left and right secondary drum, the top of left and right secondary drum is respectively arranged with left and right secondary cyclone separator, the bottom of left and right secondary drum is equipped with the 4th, the 5th down-comer group respectively, four, the 5th down-comer group is communicated with the 4th, the 5th next part case respectively, four, the 5th next part case is communicated with the inlet of left and right secondary cyclone separator through the 4th, the 5th tedge group that is arranged in the body of heater respectively, and the steam (vapor) outlet of left and right secondary cyclone separator is communicated with the vaporium of main drum through left and right connecting tube respectively; Left and right section of described main drum is communicated with left and right secondary drum through blow-off pipe respectively, the top of main drum is provided with the saturated vapor efferent duct, this saturated vapor efferent duct is communicated with a superheater through the primary steam return duct, No. one time superheater is communicated with secondary superheater through the indirect steam return duct, secondary superheater is communicated with the steam conveying route, and the steam conveying route carries branch line to be communicated with notes vapour well through steam.
2. thick oil heat production steam injection circulating fluidized bed boiler systems as claimed in claim 1, it is characterized in that: this system also comprises air blast No. one time, the secondary air blast, an air feed pipe, secondary air feed pipe, the primary air preheater, the auxiliary air preheater, feed pipe, water pump, economizer, described primary air preheater, the auxiliary air preheater, economizer all is arranged in the flue, No. one time air blast is communicated with an air feed pipe through the primary air preheater, the secondary air blast is communicated with secondary air feed pipe through the auxiliary air preheater, an air feed pipe, secondary air feed pipe is communicated with the combustion chamber of bottom of furnace body, water pump is communicated with feed pipe through economizer, and feed pipe is communicated with main drum.
3. thick oil heat production steam injection circulating fluidized bed boiler systems as claimed in claim 1 is characterized in that: described steam conveying route and steam are carried all to be equipped with on the branch line and are annotated the vapour distributor.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2007201429912U CN201053671Y (en) | 2007-04-20 | 2007-04-20 | Thick oil thermal recovery injection circulated fluid bed boiler system |
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| CNU2007201429912U CN201053671Y (en) | 2007-04-20 | 2007-04-20 | Thick oil thermal recovery injection circulated fluid bed boiler system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102234163A (en) * | 2010-04-27 | 2011-11-09 | 上海晟煜科贸有限公司 | System of heating sewage by using circulating fluidized bed boiler |
| CN103148713A (en) * | 2013-02-22 | 2013-06-12 | 中国石油天然气股份有限公司 | Superheated steam and separated water mixing method for on-line descaling |
| CN103604121A (en) * | 2013-11-29 | 2014-02-26 | 重庆大学 | Oil shale semicoke fluidized bed combustion system adopting triple-channel shunting control refeeder |
| 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 |
| 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 |
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| CN106765067A (en) * | 2016-12-14 | 2017-05-31 | 青岛特利尔环保股份有限公司 | A kind of water-coal-slurry minimum discharge combustion system |
| CN107747726A (en) * | 2017-11-23 | 2018-03-02 | 赵文利 | A kind of novel steam generator |
| CN108730942A (en) * | 2018-06-06 | 2018-11-02 | 安徽亿达新能源科技有限公司 | A kind of steam generator using flue gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102234163A (en) * | 2010-04-27 | 2011-11-09 | 上海晟煜科贸有限公司 | System of heating sewage by using circulating fluidized bed boiler |
| CN103148713A (en) * | 2013-02-22 | 2013-06-12 | 中国石油天然气股份有限公司 | Superheated steam and separated water mixing method for on-line descaling |
| CN103148713B (en) * | 2013-02-22 | 2014-11-05 | 中国石油天然气股份有限公司 | Superheated steam and separated water mixing method for on-line descaling |
| CN103604121A (en) * | 2013-11-29 | 2014-02-26 | 重庆大学 | Oil shale semicoke fluidized bed combustion system adopting triple-channel shunting control refeeder |
| 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 |
| 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 |
| 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 |
| 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 |
| CN105570860A (en) * | 2015-12-18 | 2016-05-11 | 南通万达锅炉有限公司 | Special biomass particle fluidized bed boiler with bed temperature regulating system |
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