CN101660840A - Hot-blast stove with combustion equipment - Google Patents
Hot-blast stove with combustion equipment Download PDFInfo
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- CN101660840A CN101660840A CN200910187697A CN200910187697A CN101660840A CN 101660840 A CN101660840 A CN 101660840A CN 200910187697 A CN200910187697 A CN 200910187697A CN 200910187697 A CN200910187697 A CN 200910187697A CN 101660840 A CN101660840 A CN 101660840A
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Abstract
The invention relates to a hot-blast stove with combustion equipment, comprising combustion equipment and a heat exchange body; the combustion equipment is a coal burning mechanical fire grate or a fuel oil and gas combustion chamber; the combustion equipment is connected with the heat exchange body by a flange, the heat exchange body comprises an outer layer cylindrical fin heat exchanger, a tubular heat exchanger, an inner layer cylindrical fin heat exchanger, a sleeve jet-flowing heat exchanger, a bent pipe heat exchanger, a radiation cylindrical heat exchanger and an upper cover; the outerlayer cylindrical fin heat exchanger comprises an outer cylinder body and a flue gas outer cylinder, the inner layer cylindrical fin heat exchanger comprises a flue gas inner cylinder and an air insolating cylinder; the sleeve jet-flowing heat exchanger comprises a sleeve inner pipe, a sleeve outer pipe, a depressed spherical surface end socket and a flue gas cylinder sealing plate, the upper cover is connected with the outer cylinder body, a cover board is arranged below the upper cover, the lower end of the cover board is fixed on the flue gas inner cylinder, an air insolating plate processed with a through hole is arranged at the top part of the air insolating cylinder of the inner layer cylindrical fin heat exchanger, and a pipe orifice at the upper end of the sleeve inner pipe, corresponding to the through hole, is fixed on the air insolating plate.
Description
Technical field
The invention belongs to the Thermal Power Engineering technical field.
Background technology
Existing hot-blast stove, it as the patent No. 00265544.6 utility model: the large-scale hot-blast stove that the band reflection arch can second-time burning, with the patent No. be 00265546.2 utility model: the hot-blast stove that the band reflection arch can second-time burning, its air intake is arranged on heat exchange body top Scrawl casing one side, hot-blast outlet is at furnace roof, the hot blast temperature peak is at the end socket position, scaling loss easily takes place, and influences the hot-blast stove life-span, 4 layers of cylindrical shell, heat exchange area is little, and the thermal efficiency is low.The patent No. is 02274110.0 utility model cartridge type hot-blast stove, air intake is at furnace roof, air at first enters double-tube heat exchanger, enter outer layer barrel again, because the double-tube heat exchanger temperature is higher, therefore air is heated at the double-tube heat exchanger place, the air themperature of coming out is higher, but the temperature of outer layer barrel is relatively low, the high temperature air that comes out from double-tube heat exchanger enters outer layer barrel, the lost a large amount of heats of meeting up to the process of discharging from hot-blast outlet, the air themperature that causes exporting descends, and the hot blast temperature and the thermal efficiency are affected.And hot-blast stove top air collection case part air drag is bigger, and the structure more complicated is unfavorable for the manufacturing of equipment.
Summary of the invention
At weak point of the prior art, the invention provides a kind of air enters from furnace roof, enter outer cartridge type finned heat exchanger, tubular exchanger, internal layer cartridge type finned heat exchanger, bend pipe heat exchanger, sleeve pipe efflux heat-exchanger, radiation barrel type heat exchanger successively, hot blast is from the hot-blast stove of the band combustion apparatus of the hot bellows hot-blast outlet output that is arranged on the bottom.This hot-blast stove has effectively reduced the thermal losses in the air running, has reduced the resistance in the air running.
The present invention adopts following technical scheme:
The hot-blast stove of band combustion apparatus of the present invention, cylindrical or the ellipsoidal structure of profile comprises combustion apparatus and heat exchange body, and combustion apparatus is mechanical grate coal or fuel oil, gas combustion chamber, combustion apparatus top is provided with the heat exchange body, and combustion apparatus adopts flange to be connected with the heat exchange body.
Described heat exchange body ecto-entad is disposed with outer cylinder body, flue gas urceolus, flue gas inner core, air every tube and flue gas tube.Top at the heat exchange body is provided with loam cake, the bottom of loam cake is connected with outer cylinder body, top at loam cake is provided with air intake, between flue gas urceolus top and flue gas inner core, the flue gas upper sealing plate is installed, be provided with cover plate below loam cake, the cover plate lower end is fixed on and constitutes outer cartridge type finned heat exchanger on the flue gas inner core; Outside flue gas, between tube bottom and the flue gas inner core shrouding under the flue gas is installed, shrouding constitutes discharge flue under flue gas urceolus, flue gas inner core, flue gas upper sealing plate and the flue gas, the shrouding bottom is furnished with a plurality of smoke pipes along one week of shrouding under the flue gas under flue gas, bottom and air at outer cylinder body are equipped with annular heat exchange body base plate between tube, the smoke pipe lower end is connected with heat exchange body base plate, and shrouding and heat exchange body base plate are formed tubular exchanger under smoke pipe, the flue gas; Be provided with air every tube in flue gas inner core inside, be provided with compensator every the top of tube, and the air baffle formation internal layer cartridge type finned heat exchanger that is processed with through hole is installed every the tube top at air at air; Every tube inside the flue gas tube is set at air, flue gas tube bottom is connected with flange, the flue gas tube shrouding that is processed with through hole is installed on flue gas tube top, corresponding lead to the hole site is equipped with a plurality of sleeve pipe outer tubes on flue gas tube shrouding, sleeve pipe outer tube bottom is equipped with depression shape sphere end socket, be provided with in the sleeve pipe in sleeve pipe outer tube inside and manage, the pipe upper end mouth of pipe is corresponding with the through hole on the air baffle and be fixed on the air baffle composition sleeve pipe efflux heat-exchanger in the sleeve pipe; On heat exchange body top, along one week of heat exchange body a plurality of bending smoke pipes being set, bending smoke pipe one end is fixed on the flue gas tube shrouding, and with heat exchange body internal communication, the other end passes air and forms the bend pipe heat exchanger every the discharge flue that tube and flue gas inner core lead between flue gas urceolus and the flue gas inner core; Air is formed the radiation barrel type heat exchanger every tube and flue gas tube; Outer cylinder body below heat exchange body base plate and air are provided with the dividing plate of annular between tube, dividing plate and heat exchange body base plate constitute smoke box, and the smoke box side is provided with ash removing opening and exhanst gas outlet, and the heat exchange body base plate that smoke pipe passes above the smoke box links to each other with smoke box; The flange on dividing plate and combustion apparatus top constitutes hot bellows, is provided with heat-insulation layer around the hot bellows, and the hot bellows side is provided with hot-blast outlet; Be provided with tray at air every the bottom of tube, be connected with flange in flue gas tube bottom, and on the inwall of flue gas tube bottom, refractory lining be housed.The outer cartridge type finned heat exchanger that is positioned at the heat exchange external body links to each other with the tubular exchanger of bottom, tubular exchanger is connected with the internal layer cartridge type finned heat exchanger of heat exchange body internal layer setting, internal layer cartridge type finned heat exchanger is connected with the sleeve pipe efflux heat-exchanger in centre, heat exchange body the inside, and the sleeve pipe efflux heat-exchanger is connected with the radiation barrel type heat exchanger through the bend pipe heat exchanger.
Described cover plate is shaped as bullet, and loam cake and cover plate constitute the access road that air enters outer cartridge type finned heat exchanger.
The outside of described fuel oil, gas combustion chamber is the housing that is made of arch backplate and backplate, inner side at housing is provided with the liner refractory fibre, the bottom is provided with lightweight refracrory, in liner refractory fibre and lightweight refracrory, be provided with the heavy refractory material, below the arch backplate, be provided with fire-resistant vault, be provided with fuel oil, gas burner in the side of arch backplate, burner is provided with temperature controller.
Beneficial effect of the present invention:
The present invention is integrated combustion apparatus and heat exchange body, the heat exchange body is made up of radiation barrel type heat exchanger, sleeve pipe efflux heat-exchanger, bend pipe heat exchanger, interior cartridge type finned heat exchanger, outer cartridge type finned heat exchanger and tubular exchanger, and radiation, jet flow, convection heat transfer' heat-transfer by convection combine in same heat exchange body.Air by the operation of the inside floor height warm area of outer low-temperature space, is discharged in the heat exchange body then, has avoided in the past that air is introduced into the internal layer high-temperature region, enters in the outer low-temperature space process because heat scatters and disappears again, and the air themperature that causes exporting descends.Hot-blast stove of the present invention form basic, normal, high temperature flue gas and air successively consubstantiality carry out heat exchange, improved the temperature of discharging air, reduced thermal loss.Reduced the resistance in the air running simultaneously.Flue gas has that fuel combustion is complete, heat exchange is abundant, efficient, energy-conservation, characteristics such as the life-span is long with thin gas-bearing formation simultaneously and both sides air heat exchange, 90～650 ℃ of hot blast temperatures, and heating load 120～6960kw, the thermal efficiency is more than 85%.Because at depression shape sphere end socket, scaling loss can not take place because temperature is too high the shape sphere end socket that therefore caves in the peak position of hot blast temperature, increased the service life of depression shape sphere end socket.The hot-blast stove overall structure is scientific and reasonable, and floor space is little, and is simple to operate, normal pressure equipment, security of operation.
Description of drawings
Fig. 1 is a machine burning coal-fired hot-blast stove schematic diagram of the present invention
Fig. 2 is that the A-A of Fig. 1 is to view
Fig. 3 is that the B-B of Fig. 1 is to view
Fig. 4 is fuel oil of the present invention, the temperature automatically controlled hot-blast stove schematic diagram of combustion gas
Fig. 5 is that the C-C of Fig. 4 is to view
Fig. 6 is the air flow figure in the heat exchange body
Among the figure: 1-stoker fired grate, 2-flange, 3-tray, 4-hot bellows, the 5-dividing plate, 6-ash removing opening, 7-heat exchange body base plate, 8-smoke pipe, shrouding under the 9-flue gas, 10-depression shape sphere end socket, pipe in the 11-sleeve pipe outer tube, 12-sleeve pipe, the 13-outer cylinder body, 14-flue gas urceolus, 15-flue gas inner core, the 16-air is every tube, 17-flue gas tube, 18-flue gas tube shrouding, 19-compensator, 20-bending smoke pipe, 21-flue gas upper sealing plate, 22-air baffle, the 23-cover plate, 24-loam cake, 25-air intake, 26-heat exchange body, 27-smoke box, 28-exhanst gas outlet, the 29-refractory lining, 30-hot-blast outlet, 31-fuel oil, gas combustion chamber, 32-arch backplate, the fire-resistant vault of 33-, 34-refractory fibre, 35-heavy refractory material, 36-backplate, 37-lightweight refracrory, the 38-fuel oil, gas burner, 39-temperature controller, 40-thermocouple
The specific embodiment
Embodiment 1: the machine burning coal-fired hot-blast stove
As shown in Figure 1, the hot-blast stove of band combustion apparatus of the present invention, the cylindrical structure of profile comprises combustion apparatus and heat exchange body 26, and combustion apparatus is a mechanical grate coal 1, and combustion apparatus top is provided with heat exchange body 26, and combustion apparatus adopts flange 2 to be connected with heat exchange body 26.
Described heat exchange body 26 is disposed with outer cylinder body 13, flue gas urceolus 14, flue gas inner core 15, air from outside to inside every tube 16 and flue gas tube 17.Be provided with loam cake 24 on the top of heat exchange body 26, loam cake 24 lower edge and outer cylinder body 13 top edge weld together, top center position at loam cake 24 is equipped with air intake 25, the flue gas upper sealing plate 21 of annular is installed between flue gas urceolus 14 tops and flue gas inner core 15, be provided with the cover plate 23 of cone shape below loam cake 24, cover plate 23 lower edge and flue gas inner core 15 upper end-face edge positions weld together and constitute outer cartridge type finned heat exchanger.Shrouding 9 under the flue gas that annular is installed between flue gas urceolus 14 bottoms and the flue gas inner core 15, shrouding 9 constitutes discharge flue under flue gas urceolus 14, flue gas inner core 15, flue gas upper sealing plate 21 and the flue gas, shrouding 9 bottoms are furnished with a plurality of smoke pipes 8 along 9 one weeks of shrouding under the flue gas under flue gas, bottom and air at outer cylinder body 13 are equipped with annular heat exchange body base plate 7 between tube 16, smoke pipe 8 lower ends are connected with heat exchange body base plate 7, and shrouding 9 and heat exchange body base plate 7 are formed tubular exchanger under smoke pipe 8, the flue gas.Be provided with air every tube 16 in flue gas inner core 15 inside, be provided with compensator 19 every the top of tube 16, and the air baffle 22 formation internal layer cartridge type finned heat exchangers that are processed with through hole are installed every tube 16 tops at air at air.Every tube 16 inside flue gas tube 17 is set at air, flue gas tube 17 bottoms are connected with flange 2, the flue gas tube shrouding 18 that is processed with through hole is installed on flue gas tube 17 tops, corresponding lead to the hole site is equipped with a plurality of sleeve pipe outer tubes 11 on flue gas tube shrouding 18, sleeve pipe outer tube 11 leads to space between flue gas tube shrouding 18 and the air baffle 22 by the through hole on the flue gas tube shrouding 18, sleeve pipe outer tube 11 bottoms are equipped with depression shape sphere end socket 10, be provided with in sleeve pipe outer tube 11 inside and manage 12 in the sleeve pipe, the pipe 12 upper end mouths of pipe are corresponding with air baffle 22 through holes in the sleeve pipe, and be fixed on the air baffle 22, form the sleeve pipe efflux heat-exchanger.Pipe 12 leads to space between air baffle 22 and the cover plate 23 by the through hole on the air baffle 22 in the sleeve pipe.On heat exchange body 26 tops, along 26 1 weeks of heat exchange body a plurality of bending smoke pipes 20 being set, bending smoke pipe 20 1 ends are fixed on the flue gas tube shrouding 18, with heat exchange body 26 internal communication, the other end passes air and forms the bend pipe heat exchanger every the discharge flue that tube 16 and flue gas inner core 15 lead between flue gas urceolus 14 and the flue gas inner core 15.Air is formed the radiation barrel type heat exchanger every tube 16 and flue gas tube 17.Outer cylinder body 13 below heat exchange body base plate 7 and air are provided with dividing plate 5 between tube 16, dividing plate 5 and heat exchange body base plate 7 constitute smoke box 27, smoke box 27 sides are provided with ash removing opening 6 and exhanst gas outlet 28, and the heat exchange body base plate 7 that smoke pipe 8 passes above the smoke box 27 links to each other with smoke box 27; Dividing plate 5 constitutes hot bellows 4 with the flange 2 on combustion apparatus top, is provided with heat-insulation layer around the hot bellows 4, and hot bellows 4 sides are provided with hot-blast outlet 30; Be provided with tray 3 at air every the bottom of tube 16, be connected with flange 2 in flue gas tube 17 bottoms, and anchoring have refractory lining 29 on the inwall of flue gas tube 17 bottoms.The outer cartridge type finned heat exchanger that is positioned at heat exchange body 26 outsides links to each other with the tubular exchanger of bottom, tubular exchanger is connected with the internal layer cartridge type finned heat exchanger of heat exchange body 26 internal layer settings, internal layer cartridge type finned heat exchanger is connected with the sleeve pipe efflux heat-exchanger in centre, heat exchange body 26 the inside, and the sleeve pipe efflux heat-exchanger is connected with the radiation barrel type heat exchanger through the bend pipe heat exchanger.
Described cover plate 23 is shaped as bullet, and loam cake 24 and cover plate 23 constitute the access road that air enters outer cartridge type finned heat exchanger.
When adding hot-air heat outputting wind, bunker coal (moulded coal, biomass energy burning) burns on fire grate, high-temperature flue gas enters heat exchange body flue gas tube 17 through refractory lining 29, with radiation and jet flow heat transfer type heat is passed to flue gas tube 17, depression shape sphere end socket 10, sleeve pipe outer tube 11, enter the discharge flue of flue gas inner core 15 and flue gas urceolus 14 compositions again through bending smoke pipe 20, in the convection heat transfer' heat-transfer by convection mode heat is passed to flue gas inner core 15 and flue gas urceolus 14, go into smoke box 27 through smoke pipe 8 again, discharge through exhanst gas outlet 28 by smoke suction machine.
Air enters outer cartridge type finned heat exchanger through air blast from air intake 25 and moves downwards, the smoke pipe 8 that skims over tubular exchanger enters the upwards operation of internal layer cartridge type finned heat exchanger, enter that pipe 12 sprays to depression shape sphere end socket 10 downwards in the sleeve pipe of sleeve pipe efflux heat-exchanger to the cover plate 23, then along upwards operation of sleeve pipe, the bending smoke pipe 20 that skims over the bend pipe heat exchanger enters the radiation barrel type heat exchanger and moves downwards, carry out heat exchange with flue gas, air is heated and enters hot bellows 4, through hot-blast outlet 30 outputs.
Embodiment 2: fuel oil, the temperature automatically controlled hot-blast stove of combustion gas
As shown in Figure 4, the hot-blast stove of band combustion apparatus of the present invention, oval in outline shape structure, comprise combustion apparatus and heat exchange body 26, combustion apparatus is fuel oil, gas combustion chamber 31, and combustion apparatus top is provided with heat exchange body 26, and combustion apparatus adopts flange 2 to be connected with heat exchange body 26.
As shown in Figure 4, the outside of described fuel oil, gas combustion chamber 31 is the housings that are made of arch backplate 32 and backplate 36, inner side at housing is provided with liner refractory fibre 34, the bottom is provided with lightweight refracrory 37, be provided with heavy refractory material 35 at the liner refractory fibre 34 of side and lightweight refracrory 37 the insides of bottom, below arch backplate 32 and liner refractory fibre 34, be provided with fire-resistant vault 33, be provided with fuel oil, gas burner 38 in the side of arch backplate 32, burner is provided with temperature controller 39.
As shown in Figure 5,30 places are provided with thermocouple 40 at hot-blast outlet, thermocouple 40 exportable temperature signals.
When adding hot-air heat outputting wind, in the combustion chamber internal combustion, high-temperature flue gas enters heat exchange body 26 to oil (heavy oil, light oil) coal gas (natural gas, liquefied gas, coal bed gas) through burner, along the path operation of embodiment 1, carry out heat exchange, discharge through chimney by smoke suction machine.Air is sent into heat exchange body 26 by air blast, and along the path operation of embodiment 1, air is heated, through hot-blast outlet 30 outputs.Hot blast temperature is by temperature controller 39 controls that are arranged on the burner, thermocouple 40 output temperature signals, temperature controller control 39 burner made fuel oils, gas quantity, control hot blast temperature.
Claims (5)
1. hot-blast stove with combustion apparatus, comprise combustion apparatus and heat exchange body, combustion apparatus is mechanical grate coal or fuel oil, gas combustion chamber, combustion apparatus adopts flange to be connected with the heat exchange body, the heat exchange body comprises outer cartridge type finned heat exchanger, tubular exchanger, internal layer cartridge type finned heat exchanger, the sleeve pipe efflux heat-exchanger, the bend pipe heat exchanger, radiation barrel type heat exchanger and loam cake, described outer cartridge type finned heat exchanger comprises outer cylinder body and flue gas urceolus, described internal layer cartridge type finned heat exchanger comprises that flue gas inner core and air are every tube, described sleeve pipe efflux heat-exchanger comprises pipe in the sleeve pipe, the sleeve pipe outer tube, depression shape sphere end socket and flue gas tube shrouding, it is characterized in that, described loam cake lower end is connected with the outer cylinder body of outer cartridge type finned heat exchanger, below loam cake, be provided with cover plate, the cover plate lower end is fixed on the flue gas inner core of described internal layer cartridge type finned heat exchanger, air at internal layer cartridge type finned heat exchanger is installed the air baffle that is processed with through hole every the tube top, and the pipe upper end corresponding through hole of the mouth of pipe is fixed on the air baffle in the described sleeve pipe.
2. a kind of hot-blast stove according to claim 1 with combustion apparatus, it is characterized in that, described tubular exchanger is between tube bottom and the flue gas inner core shrouding under the flue gas to be installed outside flue gas, shrouding constitutes discharge flue under flue gas urceolus, flue gas inner core, flue gas upper sealing plate and the flue gas, the shrouding bottom is furnished with smoke pipe along one week of shrouding under the flue gas under flue gas, bottom and air at outer cylinder body are equipped with annular heat exchange body base plate between tube, the smoke pipe lower end is connected with heat exchange body base plate, and shrouding and heat exchange body base plate are formed tubular exchanger under smoke pipe, the flue gas.
3. a kind of hot-blast stove according to claim 1 with combustion apparatus, it is characterized in that, described bend pipe heat exchanger is on heat exchange body top, along one week of heat exchange body being provided with the bending smoke pipe, bending smoke pipe one end is fixed on the flue gas tube shrouding, with heat exchange body internal communication, the other end passes air and forms the bend pipe heat exchanger every the discharge flue that tube and flue gas inner core lead between flue gas urceolus and the flue gas inner core.
4. a kind of hot-blast stove with combustion apparatus according to claim 1 is characterized in that described cover plate is shaped as bullet, and loam cake and cover plate constitute the access road that air enters outer cartridge type finned heat exchanger.
5. a kind of hot-blast stove with combustion apparatus according to claim 1 is characterized in that described air is provided with compensator every the top of tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101876977A CN101660840B (en) | 2009-09-28 | 2009-09-28 | Hot-blast stove with combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101876977A CN101660840B (en) | 2009-09-28 | 2009-09-28 | Hot-blast stove with combustion equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660840A true CN101660840A (en) | 2010-03-03 |
| CN101660840B CN101660840B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101876977A Expired - Fee Related CN101660840B (en) | 2009-09-28 | 2009-09-28 | Hot-blast stove with combustion equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997413A (en) * | 2012-11-27 | 2013-03-27 | 四川省登尧机械设备有限公司 | Metal hot blast heater |
| CN108036660A (en) * | 2017-12-08 | 2018-05-15 | 东北大学 | A kind of flue gas heat-exchange unit |
| CN108050865A (en) * | 2017-12-08 | 2018-05-18 | 东北大学 | It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance |
| CN109266370A (en) * | 2018-08-16 | 2019-01-25 | 武汉光谷蓝焰新能源股份有限公司 | A kind of gradual biomass high-efficiency energy-saving pyrolysis oven |
| CN112082366A (en) * | 2020-09-07 | 2020-12-15 | 界首市粮食机械有限责任公司 | Adopt natural gas to carry out grain drying tower of drying |
-
2009
- 2009-09-28 CN CN2009101876977A patent/CN101660840B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997413A (en) * | 2012-11-27 | 2013-03-27 | 四川省登尧机械设备有限公司 | Metal hot blast heater |
| CN102997413B (en) * | 2012-11-27 | 2015-03-18 | 四川省登尧机械设备有限公司 | Metal hot blast heater |
| CN108036660A (en) * | 2017-12-08 | 2018-05-15 | 东北大学 | A kind of flue gas heat-exchange unit |
| CN108050865A (en) * | 2017-12-08 | 2018-05-18 | 东北大学 | It is a kind of to prevent casing from cracking and reduce the heat exchanger apparatus of flow resistance |
| CN109266370A (en) * | 2018-08-16 | 2019-01-25 | 武汉光谷蓝焰新能源股份有限公司 | A kind of gradual biomass high-efficiency energy-saving pyrolysis oven |
| CN109266370B (en) * | 2018-08-16 | 2020-12-15 | 武汉光谷蓝焰新能源股份有限公司 | Progressive biomass high-efficiency energy-saving pyrolysis furnace |
| CN112082366A (en) * | 2020-09-07 | 2020-12-15 | 界首市粮食机械有限责任公司 | Adopt natural gas to carry out grain drying tower of drying |
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| Publication number | Publication date |
|---|---|
| CN101660840B (en) | 2012-05-23 |
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