CN204513362U - A kind of power economized boiler with waste heat recovery - Google Patents
A kind of power economized boiler with waste heat recovery Download PDFInfo
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- CN204513362U CN204513362U CN201520218375.5U CN201520218375U CN204513362U CN 204513362 U CN204513362 U CN 204513362U CN 201520218375 U CN201520218375 U CN 201520218375U CN 204513362 U CN204513362 U CN 204513362U
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Abstract
The utility model discloses a kind of power economized boiler with waste heat recovery, comprise body of heater, header tank, heat exchanger tube and deduster; The bottom level of described body of heater is provided with coal-fired accumulation plate; Described body of heater internal fixtion has the some layers of plate that flows slowly, and the edge of unhurried current plate is fixed with spoiler, and spoiler is fixed on the madial wall of body of heater, is equipped with unhurried current plate above and below generation power device; The upper end of described body of heater is communicated with exhaust fume collecting hood, and exhaust fume collecting hood is communicated with fume pipe, and other one end of fume pipe is communicated with heat exchanger tube, is enclosed with header tank, the sidewall of heat exchanger tube is fixedly welded with several heat exchange fins in the outside of heat exchanger tube; The lower end of described heat exchanger tube is communicated with deduster.Inside establish unhurried current plate, make gas flow rate slack-off, add the time of contact with generation power device, improve heat utilization ratio, then hot water is passed in other equipment, the heat in flue gas is utilized, improve the Btu utilization of boiler, energy-conserving and environment-protective.
Description
Technical field
The utility model relates to a kind of steam power plant, specifically a kind of power economized boiler with waste heat recovery.
Background technology
At present, the heat energy that thermal power generation produces when being and utilizing the fuel combustions such as coal, converted to a kind of generation mode of electric energy by generation power device, and in steam power plant, commonly use boiler, the evenly heat efficiency of industry coal-boiler only has 67%, and the heat energy of nearly 25% is by the middle of fume emission to air, and exhaust gas temperature is up to more than 200 DEG C, both pollute environment, waste again valuable fume afterheat resource.Therefore many large-sized boilers all have the shell-tube type economizer installing cast iron or stainless steel, are used for Mist heat recovering, preheat boiler-feed-water.But the corrosion that traditional economizer causes due to condensation, even perforated phenomenon occurs often, has a strong impact on the security of operation of boiler.In addition this kind of economizer bulky, flue gas resistance is large, easy dust stratification, stifled ash, heat exchange efficiency reduces year by year, service life is short, often wants deashing, and therefore medium small boiler seldom uses, after large-sized boiler uses a period of time, because of fouling seriously and substantially need not, high-temperature flue gas of leaving takes away heat, wastes energy.Boiler smoke temperature often declines 15 ~ 18 DEG C can improve boiler efficiency 1%, therefore reduces the important channel that boiler smoke temperature has become boiler energy-saving, must solve again a difficult problem for heat exchanger tube cold end corrosion simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of and slows down gas flow rate with unhurried current plate, increases time of contact, improves the power economized boiler with waste heat recovery of heat utilization ratio, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
There is a power economized boiler for waste heat recovery, comprise body of heater, header tank, heat exchanger tube and deduster; The bottom level of described body of heater is provided with coal-fired accumulation plate, and coal-fired accumulation plate is network structure, and the sidewall of body of heater offers feeding port, and feeding port is positioned at the top that plate piled up by fuel; Described body of heater internal fixtion has the some layers of plate that flows slowly, the edge of unhurried current plate is fixed with spoiler, spoiler is fixed on the madial wall of body of heater, unhurried current plate offers several passages being communicated with upper and lower side, the cross section of blow vent is the circle of diameter 3 ~ 5mm, is provided with the unhurried current lid of inclination in the below of passage, and the upper end of unhurried current lid is fixed on unhurried current plate, in body of heater, be provided with generation power device, above and below generation power device, be equipped with unhurried current plate; The upper end of described body of heater is communicated with exhaust fume collecting hood, exhaust fume collecting hood is communicated with fume pipe, other one end of fume pipe is communicated with heat exchanger tube, header tank is enclosed with in the outside of heat exchanger tube, the sidewall of heat exchanger tube is fixedly welded with several heat exchange fins, one end of heat exchange fin extend in heat exchanger tube, and one end is in header tank in addition; Described header tank is communicated with water tank, is communicated with, water tank is provided with cold water inlet at water tank with header tank by circulation water inlet pipe, the lower end of described header tank is communicated with hot water outlet pipe; The lower end of described heat exchanger tube is communicated with deduster, and deduster is communicated with chimney, between chimney and deduster, be provided with air-introduced machine.
Further: the below that described fire coal piles up plate is provided with slag room.
Further: the thickness of described unhurried current plate is 10 ~ 20mm.
Further: the material of described heat exchanger tube is copper, its diameter is 5 ~ 8 times of fume pipe 8.
Compared with prior art, the beneficial effects of the utility model are: inside establish unhurried current plate, make gas flow rate slack-off, add the time of contact with generation power device, improve heat utilization ratio, are absorbed by the heat of generation to greatest extent by generation power device; Remaining heat is passed in heat exchanger tube with flue gas from fume pipe, heat in flue gas is delivered in the water in header tank by heat exchanger tube and the heat exchange fin be arranged on heat exchanger tube sidewall, then hot water is passed in other equipment, heat in flue gas is utilized, improve the Btu utilization of boiler, energy-conserving and environment-protective; Be provided with deduster at the end of flue gas, by removings such as the dust in flue gas, nuisance particles, reduce the discharge of waste gas, be beneficial to energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation with the power economized boiler of waste heat recovery.
Fig. 2 is a kind of structure for amplifying schematic diagram in the power economized boiler of waste heat recovery with the plate that flows slowly.
In figure: 1-body of heater, 2-generation power device, 3-exhaust fume collecting hood, 4-fire coal piles up plate, 5-feeding port, 6-flows slowly plate, 61-passage, and 62-flows slowly lid, 7-spoiler, 8-fume pipe, 9-header tank, 10-heat exchange fin, 11-heat exchanger tube, 12-deduster, 13-water tank, 14-cold water inlet, 15-circulation water inlet pipe, 16-hot water outlet pipe, 17-air-introduced machine, 18-chimney.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to figure, in the utility model embodiment, a kind of power economized boiler with waste heat recovery, comprises body of heater 1, header tank 9, heat exchanger tube 11 and deduster 12, the bottom level of described body of heater 1 is provided with coal-fired accumulation plate 4, coal-fired accumulation plate 4 is network structure, coal-fired below of piling up plate 4 is provided with slag room, the coal-fired slag that plate 4 is formed after burning of piling up drops indoor at slag, be convenient to carry out slag cleaning, the sidewall of body of heater 1 offers feeding port 5, and feeding port 5 is positioned at the top that plate 4 piled up by fuel, is piled up on plate 4 by feeding port 5 pairs of fuel and add fire coal, described body of heater 1 internal fixtion has the some layers of plate 6 that flows slowly, the edge of unhurried current plate 6 is fixed with spoiler 7, spoiler 7 is fixed on the madial wall of body of heater 1, the thickness of described unhurried current plate 6 is 10 ~ 20mm, unhurried current plate 6 offers several passages 61 being communicated with upper and lower side, the cross section of blow vent 61 is the circle of diameter 3 ~ 5mm, the unhurried current lid 62 of inclination is provided with in the below of passage 61, the upper end of unhurried current lid 62 is fixed on unhurried current plate 6, like this, when the below of the plate 6 that flows slowly upwards is blown into hot blast, unhurried current lid 62 can play to hot blast the effect intercepting buffering, make the time of hot blast in body of heater 1 long, improve the heat utilization ratio in body of heater 1, reduce the heat in waste gas, generation power device 2 is provided with in body of heater 1, unhurried current plate 6 is equipped with above and below generation power device 2, generation power device 2 is wrapped in unhurried current plate 6, make the proud utilization of heat.
The upper end of described body of heater 1 is communicated with exhaust fume collecting hood 3, the flue gas produced in body of heater 1 can all be collected by exhaust fume collecting hood 3, exhaust fume collecting hood 3 is communicated with fume pipe 8, other one end of fume pipe 8 is communicated with heat exchanger tube 11, the material of heat exchanger tube 11 is copper, its diameter is 5 ~ 8 times of fume pipe 8, improve the heat exchange area of heat exchanger tube 11, slow down air-flow velocity, the flue gas heat exchange time is increased, header tank 9 is enclosed with in the outside of heat exchanger tube 11, the sidewall of heat exchanger tube 11 is fixedly welded with several heat exchange fins 10, one end of heat exchange fin 10 extend in heat exchanger tube 11, one end is in header tank 9 in addition, the flue gas heat in heat exchanger tube 11 and the exchange heat in header tank 9 is improved by heat exchange fin 10, ensure the recovery of flue gas heat, described header tank 9 is communicated with water tank 13, be communicated with by circulation water inlet pipe 15 with header tank 9 at water tank 13, water tank 13 is provided with cold water inlet 14, and provide cold water endlessly in header tank 9 in water tank 13, the lower end of described header tank 9 is communicated with hot water outlet pipe 16, the lower end of described heat exchanger tube 11 is communicated with deduster 12, removal of impurities is carried out to the dust in flue gas and harmful substance, deduster 12 is communicated with chimney 18, air-introduced machine 17 is provided with between chimney 18 and deduster 12, air pressure in air-introduced machine 17 modifier, make inner generation air-flow, be convenient to the circulation of gas, be conducive to the waste heat recovery of flue gas.
Boiler is when real work, the heat that body of heater 1 combustion produces after piling up the fired coal combustion on plate 4 is upwards transferred under the effect of air-flow, unhurried current plate 6 in body of heater 1, flow velocity is slack-off, heat energy burning produced is converted into the energy required for generating by generation power device 2, and heat slowly, adds the time of contact with generation power device 2 in the process upwards transmitted, improve heat utilization ratio, to greatest extent the heat of generation is absorbed by generation power device 2; Remaining heat is passed in heat exchanger tube 11 with flue gas from fume pipe 8, heat in flue gas is delivered in the water in header tank 9 by heat exchanger tube 11 and the heat exchange fin 10 be arranged on heat exchanger tube 11 sidewall, water is heated, then hot water is passed in other equipment, heat in flue gas is utilized, improve the Btu utilization of boiler, energy-conserving and environment-protective; Be provided with deduster 12 at the end of flue gas, by removings such as the dust in flue gas, nuisance particles, reduce the discharge of waste gas, be beneficial to energy-conserving and environment-protective.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. there is a power economized boiler for waste heat recovery, comprise body of heater (1), header tank (9), heat exchanger tube (11) and deduster (12), it is characterized in that: the bottom level of described body of heater (1) is provided with coal-fired accumulation plate (4), coal-fired accumulation plate (4) is network structure, the sidewall of body of heater (1) offers feeding port (5), and feeding port (5) is positioned at the top that plate (4) piled up by fuel, described body of heater (1) internal fixtion has the some layers of plate (6) that flows slowly, the edge of unhurried current plate (6) is fixed with spoiler (7), spoiler (7) is fixed on the madial wall of body of heater (1), unhurried current plate (6) offers the passage (61) that several are communicated with upper and lower side, the cross section of blow vent (61) is the circle of diameter 3 ~ 5mm, the unhurried current lid (62) of inclination is provided with in the below of passage (61), the upper end of unhurried current lid (62) is fixed on unhurried current plate (6), generation power device (2) is provided with in body of heater (1), unhurried current plate (6) is equipped with above and below generation power device (2), the upper end of described body of heater (1) is communicated with exhaust fume collecting hood (3), exhaust fume collecting hood (3) is communicated with fume pipe (8), other one end of fume pipe (8) is communicated with heat exchanger tube (11), header tank (9) is enclosed with in the outside of heat exchanger tube (11), the sidewall of heat exchanger tube (11) is fixedly welded with several heat exchange fins (10), one end of heat exchange fin (10) extend in heat exchanger tube (11), and one end is in header tank (9) in addition, described header tank (9) is communicated with water tank (13), be communicated with by circulation water inlet pipe (15) with header tank (9) at water tank (13), water tank (13) is provided with cold water inlet (14), and the lower end of described header tank (9) is communicated with hot water outlet pipe (16), the lower end of described heat exchanger tube (11) is communicated with deduster (12), deduster (12) is communicated with chimney (18), is provided with air-introduced machine (17) between chimney (18) and deduster (12).
2. a kind of power economized boiler with waste heat recovery according to claim 1, is characterized in that: the below that described fire coal piles up plate (4) is provided with slag room.
3. a kind of power economized boiler with waste heat recovery according to claim 1, is characterized in that: the thickness of described unhurried current plate (6) is 10 ~ 20mm.
4. a kind of power economized boiler with waste heat recovery according to claim 1, is characterized in that: the material of described heat exchanger tube (11) is copper, and its diameter is 5 ~ 8 times of fume pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218375.5U CN204513362U (en) | 2015-04-13 | 2015-04-13 | A kind of power economized boiler with waste heat recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520218375.5U CN204513362U (en) | 2015-04-13 | 2015-04-13 | A kind of power economized boiler with waste heat recovery |
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| CN204513362U true CN204513362U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520218375.5U Expired - Fee Related CN204513362U (en) | 2015-04-13 | 2015-04-13 | A kind of power economized boiler with waste heat recovery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638768A (en) * | 2017-10-13 | 2018-01-30 | 许陈菲 | A kind of coal burning exhaust-gas treatment blast pipe |
| CN108224764A (en) * | 2017-12-19 | 2018-06-29 | 刘信玮 | A kind of energy-saving hot water boiler with special-shaped water tank |
| CN111006236A (en) * | 2019-12-16 | 2020-04-14 | 潍坊联兴新材料科技股份有限公司 | Boiler exhaust smoke waste heat recovery device and recovery method |
-
2015
- 2015-04-13 CN CN201520218375.5U patent/CN204513362U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638768A (en) * | 2017-10-13 | 2018-01-30 | 许陈菲 | A kind of coal burning exhaust-gas treatment blast pipe |
| CN108224764A (en) * | 2017-12-19 | 2018-06-29 | 刘信玮 | A kind of energy-saving hot water boiler with special-shaped water tank |
| CN111006236A (en) * | 2019-12-16 | 2020-04-14 | 潍坊联兴新材料科技股份有限公司 | Boiler exhaust smoke waste heat recovery device and recovery method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20190413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |