CN101469861A - Novel high-power pressurized phase change boiler plant - Google Patents
Novel high-power pressurized phase change boiler plant Download PDFInfo
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- CN101469861A CN101469861A CNA2007100909828A CN200710090982A CN101469861A CN 101469861 A CN101469861 A CN 101469861A CN A2007100909828 A CNA2007100909828 A CN A2007100909828A CN 200710090982 A CN200710090982 A CN 200710090982A CN 101469861 A CN101469861 A CN 101469861A
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Abstract
The invention relates to a 14-130MW high power pressure phase change boiler device suitable for domestic coal combusting situation, the invention is used for a novel chain belt type revolving even coal distributing apparatus and a novel heavy type frame applied force type laminated coal supply apparatus of heavy type large tonnage travelling grate stoker boiler and reciprocating fire grate boiler, and a industrial chain fire grate boiler isobaric air feeding device, can solve the problems of horizontal coal distribution, laminated coal supply and isobaric even air feed and heavy type large tonnage travelling grate stoker boiler, reciprocating fire grate boiler and multiple boilers combined running and solve the problems of heavy type large tonnage travelling grate stoker boiler and reciprocating fire grate boiler running combustion operating conditions, the invention is a new generation energy-saving boiler and combustion system capable of reaching the boiler ideal combustion running operating condition, also can solve the problems of dirt deposition in the pipeline and in the boiler cylinder and problems of excessive heating burn, bulge, crack and tube explosion of the boiler, meanwhile the invention has a heat exchange apparatus for vacuum phase change heating, production, household pressure steam output and no additional configuration complication, the investment can be saved, the life service of the boiler can be prolonged, the operation thermal efficiency of the boiler can be improved and the environment protection energy-saving effect can be reached.
Description
Technical field
The present invention, novel 14-130MW high-power pressurized phase change boiler plant, be to be used for heating, production, life the pressure Phase transformation boiler to be arranged with steam novel, be solid-fuelled novel the have Phase transformation boiler of pressure, new combustion systems of the Chinese raw coal of burning, the system engineering burner of the burning operating condition of realizing ideal.Belong to International Classification of Patents F22B steam boiler technical field.
Technical background
The development need in present domestic boiler market, on the boiler market, great majority have pressure, do not have the medium small boiler of pressure.Excessive because of water treatment problems investment, and a lot of water treatment facilities do not reach the boiler water quality standard, cause in the boiler barrel, knot dirt in the pipeline, accidents such as boiler booster, crackle, bulge, overheated scaling loss, boiler body distortion occur.Heavy large-tonnage chain grate boiler is an efficient energy-saving, substitutes most of medium small boiler regeneration products.It is big to solve high-power boiler investment, and varieties and functions is single.As having the heating of being used for, production, life steam simultaneously, need configuration complicated heat transmission equipment and investment in addition.It is the function that hot-water boiler, steam boiler designing institute can't be finished.Novel 14-130MW high-power pressurized phase change boiler plant has the heating of being used for, production, life steam function advantage simultaneously.
Large-tonnage boiler operatiopn at present, defeated device for coal forms the inhomogeneous cloth coal of coal bunker pagoda type in fixing plough coal mode, is to cause the low main cause of domestic boiler operatiopn efficiency of combustion.And reciprocating type cloth coal can form the horizontal cloth coal of coal bunker, only adapts to miniature boiler, in the little boiler operatiopn of coal-feeding quantity.Use it for the big large-tonnage boiler operatiopn of coal-feeding quantity, the boiler operatiopn accident that driving is hurted sb.'s feelings should occur.The layering coal supply apparatus of simple amplifying type does not meet large-tonnage boiler coal bunker mechanics of granular media load-bearing condition, has fatal design defect, a lot of boiler operatiopn accidents of domestic generation.
Large-tonnage scale chain grate, crossbeam type chain-grate, long-term existence influence efficiency of combustion, uneven air difficult point problem.So far domestic neither one can effective solution.
Summary of the invention
The novel 14-130MW high-power pressurized phase change boiler plant of the present invention technology is on the basis that the high-power phase transition of vacuum hot-water boiler of novel 14MW-84MW series of patents technology is used, at home under famous boiler expert Li Zhiguang professor's the support, adopt screwed pipe, Mohs water screen tube, pressure control device, adopt the heat exchange mode of phase transition of vacuum, in the noncondensing gas container, intermediate medium absorbs calory burning and flashes to gas after vapor phase space passes to the latent heat of vaporization working medium in the condensing heat exchanger (water), be condensed into liquid and fall after rise, be heated evaporation once more to the liquid phase space.Working medium is taken away intermediate medium condensation of gas heat continually, and intermediate medium constantly absorbs the combustion heat and vaporizes; Form dynamic thermal balance.There is steam pipeline when pressing the Phase transformation boiler heating operation to be connected the steam pressure that the pressure control device 17 between drum and the heat exchanger set and limits, guarantee the safe operation of heat exchanger.The pressure Phase transformation boiler is arranged, and when implementing the operation of output steam, drum pressure increases, and carrier pipe is connected the pressure control device between drum and the heat exchanger; The steam pressure of being set limits, and guarantees the safe operation of heat exchanger.When drum pressure surpassed the steam pressure restriction, pressure control device overflow bypass pipe was opened, and realized the Boiler Steam output function.
Adopt multinomial new technology development; A new generation's high-power pressurized phase change boiler plant is energy-saving efficient boiler, the combustion system that can reach boiler ideal burning operating condition.Solved in the boiler barrel, knot dirt in the pipeline, the problem of the boiler booster of appearance, crackle, bulge, overheated scaling loss.Prolong the service life of boiler, improved the thermal efficiency of boiler; Reach the environmental protection and energy saving effect.
The novel 14-130MW high-power pressurized phase change boiler plant of the present invention, the novel chain belt type uniform coal distributor for industrial boiler device that adopts us to invent.It is the novel chain belt type revolution uniform coal distributor device that is used for heavy large-tonnage chain grate boiler, reciprocating-grate boiler.Novel chain belt swinging bilateral uniform coal distributor structural design with uniqueness, solved the difficult point problem of heavy large-tonnage chain grate boiler, reciprocating-grate boiler, many defeated coals of boiler cooperations, cloth coal, the steady triangle coal racking head of independence is finished the horizontal uniform coal distributor program of whole coal bunker, coal racking head and conveyer belt in rolling guide friction reduces 50%, simple in structure, speed governing convenience, safe and reliable.
The novel 14-130MW high-power pressurized phase change boiler plant of the present invention, the novel heavy duty frame stressing layering coal supply apparatus that adopts us to invent, it is the novel heavy duty frame stressing layering coal supply apparatus (80-160t/h) that is used for heavy large-tonnage chain grate boiler, reciprocating-grate boiler, novel heavy duty frame stressing structural design with uniqueness, solved the mechanics of granular media load-bearing technical conditions of hundreds of tons of coal bunkers of heavy large-tonnage chain grate boiler, reciprocating-grate boiler, safe and reliable.Novel heavy duty frame stressing layering coal supply apparatus is that frame stressing, single roller are dialled coal, layering, Fen Long, the overload form of protection automatically.Regulate layering or divide the ridge according to the physical characteristic of coal.A layer layering arranged, do not have layer and divide the ridge.Be provided with and dredge the coal measures system, use when freezing coal cinder or wet coal not chute blockage.Be provided with water cooling plant by the combustion zone.Be provided with the automatic roller-cleaning device, it is even to guarantee to dial coal.The coal bunker stress surface meets the mechanics of granular media calculation procedure.The design of coal flashboard meets mechanics of granular media pause of breathing condition, to prevent the coal that flows automatically.
The present invention, novel 14-130MW high-power pressurized phase change boiler plant, the industrial chain grate boiler isobaric isobaric air feeding device that adopts us to invent is domestic unique applied industrial chain grate boiler isobaric isobaric air feeding device.
Realize balanced ventilation, must make that the static pressure of each side opening is that static pressure on the total length of whole air channel remains unchanged; The discharge coefficient of each side opening or coefficient of partial resistance equate; The direction that also will make the air-flow of sending as far as possible with the axis normal in air channel, promptly the angle of departure of air-flow is big as far as possible.In order to keep the static pressure on the total length of air channel constant, must make air channel head end speed greater than tip speed, and make head end and terminal dynamic pressure poor (or the dynamic pressure between two side holes is poor) equal the pressure loss on the total length of air channel.
Meanwhile, also must change the cross section along the length direction in air channel; That is to say that the cross section in air channel should little by little dwindle towards end direction.Because of the flow velocity static pressure produces that descends regains,, make reduced cross-sectional the static pressure of affluence be converted into dynamic pressure so have to along the air-flow direction of advance often greater than the pressure loss in air channel; Only in this way just can make the static pressure on the total length of air channel keep constant.Must make blast, the wind speed of each side opening air-out of air channel equate that the static pressure of isobaric air compartment obtains balance, could realize the chain fire-gate even air supply mode of Industrial Boiler.
Technical scheme
The present invention, novel 14-130MW high-power pressurized phase change boiler plant.The novel chain belt type uniform coal distributor for industrial boiler device is set on coal handling system, solve the coal bunker uniform coal distributor problem that influences the ideal burning operating mode from the source, avoid the inhomogeneous situation of coal bunker pagoda type collection coal, realizing horizontal coal bunker uniform coal distributor, is the basic condition of realizing boiler ideal burning operating condition.
The large-scale coal bunker of large-scale transverse beam chain grate boiler is connected with the traveling-grate stoker layering coal supply apparatus, adopts novel heavy duty frame stressing layering coal supply apparatus.Solved the mechanics of granular media load-bearing technical conditions of hundreds of tons of coal bunkers of heavy large-tonnage chain grate boiler, reciprocating-grate boiler, safe and reliable.Novel heavy duty frame stressing layering coal supply apparatus is that frame stressing, single roller are dialled coal, layering, Fen Long, the overload form of protection automatically.Regulate layering or divide the ridge according to the physical characteristic of coal.A layer layering arranged, do not have layer and divide the ridge.Be provided with and dredge the coal measures system, use when freezing coal cinder or wet coal not chute blockage.Be provided with water cooling plant by the combustion zone.Be provided with the automatic roller-cleaning device, it is even to guarantee to dial coal.The coal bunker stress surface meets the mechanics of granular media calculation procedure.The design of coal flashboard meets mechanics of granular media pause of breathing condition, to prevent the coal that flows automatically.Be the important measures that realize boiler ideal burning operating mode.
Novel 14-130MW high-power pressurized phase change boiler, multiselect is unsolved so far industry difficult point problem with the balanced ventilation problem of the wide boiler independence air compartment of large-scale transverse beam fire grate solution 9-15 rice.The industrial chain grate boiler isobaric isobaric air feeding device of our invention, the large-scale transverse beam fire grate that design is implemented is domestic unique applied industrial chain grate boiler isobaric isobaric air feeding device.The isobaric air compartment that blast, wind speed equate is realized the chain fire-gate even air supply mode of Industrial Boiler.Be to have the Phase transformation boiler of pressure to realize boiler ideal burning operating mode, the important measures of efficient energy-saving.Above-mentioned boiler combustion technology can be used for flake type, reciprocating type traveling-grate stoker, configurable various large-tonnage chain grate boilers.
Novel 14-130MW high-power pressurized phase change boiler has the heating of being used for, production, life steam function advantage.Adopt threaded flue, Mohs water-cooling wall, solved when implementing the operation of output steam safe operation in the time of the vacuum heat exchanger.When drum pressure increases, be connected the pressure control device between drum and the heat exchanger, realize the Boiler Steam output function, the pressure phase transformation is arranged.Solved in the boiler barrel, knot dirt in the pipeline, the problem of the boiler booster of appearance, crackle, bulge, overheated scaling loss.Prolong the service life of boiler, improved the thermal efficiency of boiler.
The embodiment structure: lower box collecting pipe inspection opening (1) is located at an end of lower box collecting pipe, lower box collecting pipe Lian Jiemoshi water screen tube (4), down-comer (2) is connected with next part case, upper drum, rear arched tube (3) is connected with the next part case, and spiral smoke pipe (5) is housed in the drum, and inspection opening is located at the front portion (6) of drum, drum (7), heat exchanger delivery port (8) is located at the rear portion of boiler heat-exchanger, and heat exchanger water inlet (9) is located at the rear portion of boiler heat-exchanger, and heat exchanger (10) is located at the top of drum.Delivery valve seat (11) is located at the top of heat exchanger, and the four groups of vacuum control valves in top (13) that manhole (12) is located at heat exchanger are located at the top of heat exchanger, and vacuum gauge stand (14) is located at the top of heat exchanger, and heat exchanger manhole (15) is located at the front portion of heat exchanger; Condensate pipe (16) is connected with drum, heat exchanger, pressure control device (17), steam pipeline are connected between drum and the heat exchanger, boiler traveling-grate stoker (18), be provided with isobaric air compartment (19) in the boiler traveling-grate stoker, heavy duty frame stressing layering coal supply apparatus (20), coal spout (21) connects heavy duty frame stressing layering coal supply apparatus, coal breakage storehouse, top, coal breakage storehouse (22) is provided with novel chain belt type uniform coal distributor for industrial boiler device (23), lighting door (24) is located at the front portion, observes the rear portion (25) that door is located at boiler body
Beneficial effect
Novel 14-130MW high-power pressurized phase change boiler plant has the heating of being used for, production, life steam function advantage simultaneously.Its structural design, integrate multinomial patented technology first, implement, reach energy-saving efficient boiler, the combustion system of boiler ideal burning operating condition.Its combustion system is energy-efficient important measures, in the service life that can improve boiler output, prolonged boiler, has improved the thermal efficiency of boiler; Reached the environmental protection and energy saving effect.
Description of drawings
The novel 14-130MW high-power pressurized phase change boiler plant schematic diagram of accompanying drawing 1.Among the figure:
1 lower box collecting pipe inspection opening is located at an end of lower box collecting pipe, and 2 down-comers connect collecting box pipe, and 3 rear arched tubes are connected with the next part case, upper drum connects.4 Mo Shi water-cooling walls are equipped with the spiral smoke pipe in 5 drums, 6 inspection openings are located at the front portion of drum, 7 drums, and 8 heat exchanger delivery ports are located at the rear portion of boiler heat-exchanger, and 9 heat exchanger water inlets are located at the rear portion of boiler heat-exchanger, and 10 heat exchangers are located at the top of drum.11 delivery valve seats are located at the top of heat exchanger, and 12 manholes are located at the top of heat exchanger, and 13 4 groups of vacuum control valves are located at the top of heat exchanger, and 14 vacuum gauge stands are located at the top of heat exchanger, and 15 heat exchanger manholes are located at the front portion of heat exchanger.16 condensate pipes are connected with drum, heat exchanger, 17 pressure control devices, steam pipeline are connected between drum and the heat exchanger, 18 boiler traveling-grate stokers, be provided with 19 isobaric air compartments in the boiler traveling-grate stoker, 20 heavy duty frame stressing layering coal supply apparatus, 21 coal spouts connect heavy duty frame stressing layering coal supply apparatus, coal breakage storehouse, top, 23 coal breakage storehouse, 22 coal breakage storehouses is provided with the novel chain belt type uniform coal distributor for industrial boiler device, 24 lighting doors are located at the front portion, and 25 observe the rear portion that door is located at boiler body.
The specific embodiment
The novel 14-130MW high-power pressurized phase change boiler plant of the present invention is by having high-power pressurized phase change boiler, combustion system to constitute.
Be installed on the horizontal rubber belt conveyor frame independent novel chain belt type uniform coal distributor for industrial boiler device 23.On conveyer belt, carry the bunker coal in the way, under the effect of triangle coal racking head,, implement evenly to coal breakage storehouse 22 cloth coals to cloth coal guide storehouse, both sides along its direction of motion.To heavy duty frame stressing layering coal supply apparatus 20,, from bottom to top, divide bulk, middle piece, the even coal supply of fritter through coal spout 21 along boiler traveling-grate stoker 18 cross sections.Bunker coal is imported boiler traveling-grate stoker 18 combustion zones.Be provided with isobaric air compartment 19 in the boiler traveling-grate stoker.The lower box collecting pipe inspection opening is located at an end 1 of lower box collecting pipe, lower box collecting pipe Lian Jiemoshi water screen tube 4, and rear arched tube 3 is connected with lower box collecting pipe, upper drum.Mo Shi water-cooling wall 4 is equipped with spiral smoke pipe 5 in the drum, inspection opening is located at the front portion 6 of drum, drum 7, and heat exchanger delivery port 8 is located at the rear portion of boiler heat-exchanger, and heat exchanger water inlet 9 is located at the rear portion of boiler heat-exchanger, and heat exchanger 10 is located at the top of drum.Delivery valve seat 11 is located at the top of heat exchanger, and manhole 12 is located at the top of heat exchanger, and four groups of vacuum control valves 13 are located at the top of heat exchanger, and vacuum gauge stand 14 is located at the top of heat exchanger, and heat exchanger manhole 15 is located at the front portion of heat exchanger.Condensate pipe 16 is connected with drum, heat exchanger, and pressure control device 17, steam pipeline are connected between drum and the heat exchanger.
The novel 14-130MW high-power pressurized phase change of the present invention boiler is the burner that adopts solid fuel ignition.The flame temperature radiation heats the boiler water in the heating devices such as Mo Shi water screen tube 4, down-comer 2, rear arched tube 3, anterior down-comer 8, upper drum 7 in the combustion process when pressing the Phase transformation boiler heating operation, by producing the heat exchange mode work of the pure circulation generation phase transition of vacuum in steam and the vacuum heat exchanger.The heat exchange mode heating of this circulating vacuum phase transformation has guaranteed hot pure circulation, realizes the purpose of heating.Because of adopting the heat exchange mode of phase transition of vacuum, in the noncondensing gas container, intermediate medium absorbs calory burning and flashes to gas, after vapor phase space passes to the latent heat of vaporization working medium in the condensing heat exchanger (water), be condensed into liquid and fall after rise, be heated evaporation once more to the liquid phase space.Working medium is taken away intermediate medium condensation of gas heat continually, and intermediate medium constantly absorbs the combustion heat and vaporizes; Form dynamic thermal balance.There is steam pipeline when pressing the Phase transformation boiler heating operation to be connected the steam pressure that the pressure control device 17 between drum and the heat exchanger set and limits, guarantee the safe operation of heat exchanger.
As pressing Phase transformation boiler, when implementing the operation of output steam, drum pressure increases, and carrier pipe is connected the pressure control device 17 between drum and the heat exchanger; The steam pressure of being set limits, and guarantees the safe operation of heat exchanger.When drum pressure surpassed the steam pressure restriction, pressure control device overflow bypass pipe was opened, and realized the Boiler Steam output function.
Claims (4)
1, a kind of novel 14-130MW high-power pressurized phase change boiler plant, it is characterized in that lower box collecting pipe inspection opening (1) is located at an end of lower box collecting pipe, lower box collecting pipe Lian Jiemoshi water screen tube (4), down-comer (2) is connected with next part case, upper drum, rear arched tube (3) is connected with the next part case, spiral smoke pipe (5) is housed in the drum, inspection opening is located at the front portion (6) of drum, drum (7), heat exchanger delivery port (8) is located at the rear portion of boiler heat-exchanger, heat exchanger water inlet (9) is located at the rear portion of boiler heat-exchanger, and heat exchanger (10) is located at the top of drum.Delivery valve seat (11) is located at the top of heat exchanger, and the four groups of vacuum control valves in top (13) that manhole (12) is located at heat exchanger are located at the top of heat exchanger, and vacuum gauge stand (14) is located at the top of heat exchanger, and heat exchanger manhole (15) is located at the front portion of heat exchanger; Condensate pipe (16) is connected with drum, heat exchanger, pressure control device (17), steam pipeline are connected between drum and the heat exchanger, boiler traveling-grate stoker (18), be provided with isobaric air compartment (19) in the boiler traveling-grate stoker, heavy duty frame stressing layering coal supply apparatus (20), coal spout (21) connects heavy duty frame stressing layering coal supply apparatus, coal breakage storehouse, top, coal breakage storehouse (22) is provided with novel chain belt type uniform coal distributor for industrial boiler device (23), lighting door (24) is located at the front portion, observes the rear portion (25) that door is located at boiler body.
2, novel 14-130MW high-power pressurized phase change boiler plant according to claim 1, it is characterized in that: Mo Shi water screen tube (4) connects drum (7), lower box collecting pipe, heat exchanger (10) is located at the top of drum, condensate pipe (16) is connected with drum, heat exchanger, and pressure control device (17), steam pipeline are connected between drum and the heat exchanger.
3, novel 14-130MW high-power pressurized phase change boiler plant according to claim 1 is characterized in that: be provided with isobaric air compartment (19) in the boiler traveling-grate stoker.
4, novel 14-130MW high-power pressurized phase change boiler plant according to claim 1, it is characterized in that:, top, coal breakage storehouse (22) is provided with novel chain belt type uniform coal distributor for industrial boiler device (23), be provided with isobaric air compartment (19) in the boiler traveling-grate stoker, heavy duty frame stressing layering coal supply apparatus (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100909828A CN101469861A (en) | 2007-03-30 | 2007-03-30 | Novel high-power pressurized phase change boiler plant |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100909828A CN101469861A (en) | 2007-03-30 | 2007-03-30 | Novel high-power pressurized phase change boiler plant |
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| CN101469861A true CN101469861A (en) | 2009-07-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619858B (en) * | 2009-08-06 | 2010-10-13 | 广东电网公司电力科学研究院 | Automatic control method for boiler oil burner and device thereof |
| CN110160038A (en) * | 2019-06-06 | 2019-08-23 | 海伦市利民节能锅炉制造有限公司 | A kind of half gasification, and combustion bearing boiler of biomass molding fuel |
-
2007
- 2007-03-30 CN CNA2007100909828A patent/CN101469861A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619858B (en) * | 2009-08-06 | 2010-10-13 | 广东电网公司电力科学研究院 | Automatic control method for boiler oil burner and device thereof |
| CN110160038A (en) * | 2019-06-06 | 2019-08-23 | 海伦市利民节能锅炉制造有限公司 | A kind of half gasification, and combustion bearing boiler of biomass molding fuel |
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Open date: 20090701 |