CN102798215B - Condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions - Google Patents
Condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions Download PDFInfo
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- CN102798215B CN102798215B CN201210285957.6A CN201210285957A CN102798215B CN 102798215 B CN102798215 B CN 102798215B CN 201210285957 A CN201210285957 A CN 201210285957A CN 102798215 B CN102798215 B CN 102798215B
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Abstract
The invention discloses a condensation type coal-fired boiler with energy-saving effect and desulfurizing and dedusting functions, belonging to the technical field of horizontal coal-fired boilers. The condensation type coal-fired boiler is used for remarkably improving the heat efficiency of the coal-fired boiler and desulfurizing and dedusting flue gas. The technical scheme of the invention is as follows: a condenser, a dedusting chamber and a flue heat exchanger are additionally arranged on the condensation type coal-fired boiler, wherein according to the condenser, water jackets are arranged on the top and two side walls of a boiler body; a plurality of condensation pipes are arranged in the water jackets; inlets of the condensation pipes are connected with flue gas outlets; outlets of the condensation pipes are connected with a chimney smoke exhaust opening through a flue heat exchanger; the dedusting chamber is arranged in the boiler body at the rear part of the heat exchange chamber; a desulfurizing pool, a high-pressure pump, a spray pipe and a spray nozzle are arranged in the dedusting chamber; and the flue heat exchanger is arranged at the lowermost part of the rear wall of the boiler and is used for carrying out secondary heat exchange on the flue gas exhausted by the condensation pipe. According to the condensation type coal-fired boiler disclosed by the invention, the condensation technology is applied to the coal-fired boiler, so that the heat efficiency of the coal-fired boiler reaches 80-95 percent level which is unimaginable in a traditional theory, coal resources can be greatly saved and excessively-remarkable economic and social benefits are obtained.
Description
Technical field
The present invention relates to a kind of coal-burning boiler, particularly a kind of horizontal coal-fired boiler with the excellent thermal efficiency and desulfurization, dedusting function, belongs to horizontal coal-fired boiler technology field.
Background technology
Coal-burning boiler is heat supply and heating equipment, is widely used in industrial enterprise's heat supply and rural area heating at present.Through measuring and calculating, the general back yard industry coal-burning boiler thermal efficiency is at about 50-65%, and general civil heating stove thermal effect is at about 25-32%.The coal-burning boiler thermal efficiency is low is the global problem existed for a long time, and this is determined by the structure of coal-burning boiler and combustion system.Fire coal creates a large amount of flue gas by burning in the boiler, and the heat energy in boiler smoke is made up of sensible heat and latent heat two parts, only make use of the sensible heat of partial fume in usual burner hearth.Traditional exhaust gas temperature is generally higher than 150-350 DEG C, and the water vapour in flue gas is still in superheat state, can not discharge the latent heat of vaporization, and therefore the conventional boiler thermal efficiency generally can only reach about 50-65%.
In the measure improving the coal-burning boiler thermal efficiency, condensing heat-exchange technology is very effective new technology.The principle of condensing heat-exchange technology is: after some fuel combustion, in flue gas, the enthalpy amount of water vapour is very considerable, if the exhaust gas temperature of boiler drops to enough levels, water vapour in superheat state in flue gas will condense into water and release the latent heat of vaporization, and this partial heat is used for boiler, Here it is condenser boiler.Condenser boiler has a great difference with tradition in design philosophy obviously, recycle because the latent heat of vaporization condensing into water obtains, have again the sensible heat of flue gas cool-down also recycle, boiler thermal output will improve greatly, Fuel Consumption greatly reduces, and has saved the energy.Condenser boiler can be reduced to 50-70 DEG C exhaust gas temperature, make use of the latent heat of vaporization of the steam in flue gas, makes the thermal efficiency bring up to more than 80-90%.In heating, hot water supply, use condenser boiler widely, will the consumption of fuel be greatly reduced.
Traditional coal-burning boiler, except heat exchange efficiency is low, also has the shortcoming of meeting emission, welding.In the flue gas that coal-burning boiler is discharged, containing a large amount of sulfur dioxide, nitrogen dioxide, carbon monoxide and other harmful chemical, also have a large amount of flyash, these harmful chemicals and flue dust cause pollution to environment, destroy ecological environment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, this boiler adopts advanced condensing heat exchanger technology, condensing heat-exchange is carried out to boiler chimney tail vapour, make to escape before poisonous smoke harmful object is condensate in effusion chimney, boiler is made to have environmental-protecting performance, both improve the thermal efficiency, reach again environment protection emission requirement.
The technical scheme solved the problems of the technologies described above is:
One has energy-saving effect and desulfurization, the condensing coal-burning boiler of dedusting function, its formation comprises body of heater, combustion chamber, Heat Room, fire grate, chimney, its improvements are, it also has condenser, dirt pocket, condenser has water jacket on the top and two side of body of heater, many condenser pipes are installed in water jacket, the import of condenser pipe is connected with the exhanst gas outlet of the dirt pocket at Heat Room rear portion, the outlet of condenser pipe is connected with chimney exhaust opening, dirt pocket is in the body of heater at the rear portion of Heat Room, desulfurization pond is arranged at dirt pocket bottom, the desulfurization water of limy stone flour is had in desulfurization pond, in desulfurization pond, resistant to elevated temperatures high-pressure pump is installed, nozzle is had above dirt pocket, nozzle is connected with high-pressure pump by jet pipe.
Above-mentioned there is energy-saving effect and desulfurization, the condensing coal-burning boiler of dedusting function, bottom described boiler rear wall, chimney heat exchanger is installed, chimney heat exchanger is rectangle box body, the upper end of chimney heat exchanger is connected with the bottom of chimney, there is air inlet the rear end of chimney heat exchanger, the front end of chimney heat exchanger is connected with boiler bottom fire grate bottom by ajutage, many flue gas heat exchange tubes are arranged with in the cavity of chimney heat exchanger, one end of flue gas heat exchange tube is connected with condenser exhaust opening, the other end of flue gas heat exchange tube is connected with the bottom of chimney, the bottom of chimney is provided with air-introduced machine.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, described condenser pipe is spiral grooved tube, and the ratio h/t of the groove depth h of spiral grooved tube and the helicla flute pitch t of spiral grooved tube is 0.05-0.075.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, the condenser pipe in the body of heater top of described condenser and two side water jacket is single row or multiple rows, and often arranging in condenser pipe has many condenser pipes arranged in parallel.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, condenser pipe import in the body of heater top water jacket of described condenser is connected with the exhanst gas outlet of the dirt pocket at Heat Room rear portion, condenser pipe outlet in the water jacket of body of heater top is connected with the condenser pipe import in the water jacket of body of heater two side, and the condenser pipe outlet in the water jacket of body of heater two side is connected with chimney exhaust opening by chimney heat exchanger.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, described boiler rear wall is provided with feed cistern, be provided with supply channel and automatic water supply device in feed cistern, feed cistern communicates with the desulfurization water level of dirt pocket, and automatic water supply device place is provided with a water drift.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, described boiler rear wall is provided with lime stone powder box, funnel is arranged at lime stone powder box bottom, its lower portion pipeline is connected with the desulfurization pond of dirt pocket bottom, its lower portion has agstone rotor, and the water flow rotor of the supply channel in the desulfurization pond of agstone rotor and dirt pocket is fixed on same horizontal rotating shaft.
The above-mentioned condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function, the bottom in the desulfurization pond of described dirt pocket is ramp type, and have electric blowdown valve door at the bottommost on slope, electric blowdown valve door is connected with the time relay.
Usefulness of the present invention is:
1. the present invention adopts condensing heat-exchange technology, utilize the waste heat in condenser absorption flue gas, by lower than the circulating backwater of 50 °, make the water recovery heat release in flue gas, reclaim its latent heat of vaporization, while reduction exhaust gas temperature, the heat absorbed in condenser is sent in heated water, improves the thermal efficiency with this, after tested, the thermal efficiency can reach 80%-95%.Greatly exceed national standard.
2. the present invention adopts dirt pocket to spray high-temperature flue gas; high-temperature flue gas is utilized to make shower water produce high-temperature steam on the one hand; high-temperature steam enters condenser and carries out vaporization heat exchange; improve the thermal efficiency; the alkaline shower water containing agstone is utilized to be deposited in desulfurization pond by the harmful chemicals such as the sulfur dioxide in high-temperature flue gas, nitrogen dioxide, carbon monoxide, flyash and flue dust on the other hand; avoid these harmful chemicals and flue dust to the pollution of environment, protect ecological environment.
3. the present invention designs dirt pocket in boiler, and except with except the dedusting of desulfurization water, desulfurization, desulfurization water also has two large functions; a maximum function is exactly; when the steam through desulfurization is at condensation intraductal heat exchange, the condenser pipe that can adequately protect does not corrode by sulfide, increases condenser pipe service life.Second maximum function is, when the high-temperature flue gas up to 350 ° of desulfurization water to boiler tail sprays, sensible heat in flue gas can also be changed into latent heat, high temperature sensible heat flue gas is made to become high-temperature steam instantaneously, a large amount of latent heat in high-temperature steam, through the condensing heat-exchange of two backhauls in condenser pipe, latent heat be condensed pipe sidewall water absorb heat energy all transferred heat in water, make the sensible heat in boiler smoke all can be transformed absorption, boiler smoke is realized when discharging without chemical pollution, without effective cigarette temperature loss.Reach zero-emission.
4. the present invention is at boiler rear wall bottom design chimney heat exchanger, flue gas is discharged at boiler bottom water temperature lowest part, design chimney heat exchanger is the heating standard in order to adapt to China boiler heating hot water outlet temperature 80 DEG C of return water temperatures 60 DEG C, because this standard return water temperature is higher than 50 DEG C, can not form dew-point temperature, can not abundant condensing heat-exchange, affect heat transfer effect.In order to residual temperature wherein all be absorbed in flue gas rearmost end, adopt the area of above-mentioned standard at heating temperature, design and installation chimney heat exchanger.Chimney heat exchanger still adopts comb to design, and be inlet air of boiler mouth in pipe, pipe side is boiler exhaust outlet.This kind of design belongs to air heat-exchange.Utilize condensation to cross the remaining temperature of flue gas and heat the oxygen before entering burner hearth.Increase the oxygen temperature in burner hearth, can fire box temperature be increased, make coal-fired Thorough combustion, reduce exhaust gas temperature simultaneously.Maximal efficiency can be realized and utilize the energy.The exhaust gas temperature now testing boiler is 30-50 DEG C, and the thermal efficiency can reach 80%-95%.
5. the present invention is designed with two condensers, and can realize in flue gas and water, air inducing and air draft two kinds of heat exchange modes, the mutual transformation energy heat exchange of four kinds of energy, can realize very effective raising boiler thermal output simultaneously.
6. condenser pipe of the present invention adopts spiral grooved tube, air in spiral grooved tube and the outer hot water of pipe are all subject to spiral fluted disturbance, that primary fluid flow rapid district mobility strengthens on the one hand, being thinned negative thickness of keeping on file layer by layer on the other hand makes thermal resistance reduce, the result of both effects, all enhances the heat transfer inside and outside pipe.The heat-transfer effect of spiral grooved tube improves about 52% than light pipe, and wall temperature is than light pipe increase about 22.4 °.Spiral grooved tube also has anti-dust stratification ability, and flue gas is when the helicla flute flowing of tube wall, and spirally state is advanced, and so both adds flue gas rotary motion, increases the disturbance to tube wall simultaneously, make the flying dust carried under one's arms in flue gas not easily silence get off.Condenser pipe adopts spiral grooved tube, is a quantum leap technically.
7. water supply of the present invention, add pulverized limestone, the blowdown of desulfurization pond and all adopt automaton, achieve heat, desulfurization, dedusting automatic integratedization operation.
The present invention breaches the Technologies And Conceptions of traditional coal-burning boiler, condensation technology is applied in coal-burning boiler, make the thermal efficiency of coal-burning boiler reach the inconceivable level of traditional theory, coal resources can be saved in a large number, there is very significant economic benefit and social benefit.
The present invention thoroughly solves the shortcomings that plain cylindrical furnace is difficult to overcome, for now both at home and abroad most advanced, science, rationally, novel, practical take coal as the condenser boiler new technology of fuel, it compares with conventional boiler absolute economy, the popularization of condenser boiler and use, will promote the development of thermal technology's art.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1.
In figure, mark is as follows: body of heater 1, shoot door 2, firing door 3, clean-out door 4, fire grate 5, combustion chamber 6, Heat Room 7, chimney 8, condenser 9, dirt pocket 10, water jacket 11, condenser pipe 12, desulfurization pond 13, high-pressure pump 14, nozzle 15, jet pipe 16, lime powder box 17, feed cistern 18, electric blowdown valve door 19, chimney heat exchanger 20, flue gas heat exchange tube 21, air-introduced machine 22, air inlet 23, ajutage 24, access door 25.
Detailed description of the invention:
Condensing coal-burning boiler of the present invention becomes to comprise body of heater 1, shoot door 2, firing door 3, clean-out door 4, fire grate 5, combustion chamber 6, Heat Room 7, chimney 8, condenser 9 and dirt pocket 10.
Show in figure, condenser 9 has water jacket 11 on the top and two side of body of heater 1, many condenser pipes 12 are installed in water jacket 11, condenser pipe 12 import in the body of heater top water jacket 11 of condenser 9 is connected with the exhanst gas outlet of the dirt pocket 10 at Heat Room 7 rear portion, condenser pipe 12 outlet in the water jacket of body of heater 1 top is connected with condenser pipe 12 import in body of heater 1 two side water jacket 11, and condenser pipe 12 outlet in body of heater 1 two side water jacket 11 is connected with chimney 8 exhaust opening.The top nose of condenser 9 and two side front end be all designed with access door 25, to carry out M R to condenser pipe 12.
Condenser 9 pipeline is in line, first completes the first heat exchange backhaul by the condenser pipe 12 of high-temperature flue gas on the back of horizontal boiler circle; Again along be embedded in horizontal boiler both sides condenser pipe 12 in complete the second backhaul, this kind of design belongs to back of the body wet type.The design of condenser pipe 12 is then according to exhaust air rate and the heat exchange area calculating of boiler, all can by this principle design from the horizontal boilers of several tons to tens tons, the condenser pipe 12 at boiler top can be designed to many rows, the condenser pipe 12 of boiler both sides also can be designed to many rows, and this kind of design is applicable to the hot-water boiler of the various tonnage of size; Vulcanization bed, or mechanization fills out coal burning boiler automatically.
Show in figure, dirt pocket 10 is in the body of heater at the rear portion of Heat Room 7, and the desulfurization pond 13 of height 500mm is arranged at dirt pocket 10 bottom, and desulfurization pond 13 can extend to the bottom of Heat Room 7.Have the desulfurization water of limy stone flour in desulfurization pond 13, installation high-voltage pump 14 in desulfurization pond 13, has nozzle 15 above dirt pocket 10, nozzle 15 is connected with high-pressure pump 14 by jet pipe 16.With high-pressure pump 14, desulfurization water is pressurizeed, desulfurization is carried out with spiral nozzle 15 pairs of high-temperature flue gas, dust granule now in high-temperature flue gas is caught by water smoke, falls into design together with desulfurization water in the desulfurization pond 13 of boiler bottom, and the sulfide simultaneously in flue gas is by buck desulfurization.High-temperature flue gas after desulfurization and dedusting and desulfurization water collision rift, can form steam, steam is under the gravitation of air-introduced machine, enter in the condenser pipe 12 at boiler top, through a backhaul, then return and enter in boiler both sides condenser pipe 12, after boiler, bottom flue is discharged and is entered chimney 8.Because lower floor's condenser pipe 12 designs in boiler both sides water jacket 11, and at boiler bottom, water temperature is lower than 50 DEG C, and in this backhaul, steam is through the condensing heat-exchange of two backhauls, and steam becomes condensed water, is discharged outside body of heater 1.
Show in figure, the present invention has installed chimney heat exchanger 20 bottom boiler rear wall, flue gas is discharged at boiler bottom water temperature lowest part, design chimney heat exchanger 20 is the heating standards in order to adapt to China boiler heating hot water outlet temperature 80 ° of return water temperatures 60 °, because this standard return water temperature is higher than 50 °, can not form dew-point temperature, can not abundant condensing heat-exchange, affect heat transfer effect.In order to residual temperature wherein all be absorbed in flue gas rearmost end, adopt the area of above-mentioned standard at heating temperature, design and installation chimney heat exchanger 20.Chimney heat exchanger 20 still adopts comb to design, and be inlet air of boiler mouth in pipe, pipe side is boiler exhaust outlet.This kind of design belongs to air heat-exchange.Utilize condensation to cross the remaining temperature of flue gas and heat the oxygen before entering burner hearth.Increase the oxygen temperature in burner hearth, can fire box temperature be increased, make coal-fired Thorough combustion, reduce exhaust gas temperature simultaneously.Maximal efficiency can be realized and utilize the energy.The exhaust gas temperature now testing boiler is that 30/50 ° of thermal efficiency can reach 80%-95%.
Chimney heat exchanger 20 is rectangle box body, and the upper end of chimney heat exchanger 20 is connected with the bottom of chimney 8, and there is air inlet 23 rear end of chimney heat exchanger 20, and the front end of chimney heat exchanger 20 is connected with boiler bottom fire grate bottom by ajutage 24.Be arranged with many flue gas heat exchange tubes 21 in the cavity of chimney heat exchanger 20, one end of flue gas heat exchange tube 21 is connected with condenser exhaust opening, and the other end of flue gas heat exchange tube 21 is connected with the bottom of chimney 8, and the bottom of chimney 8 is provided with air-introduced machine 22.
Show in figure, condenser pipe 12 is spiral grooved tube, and spiral grooved tube is prior art, but never on condenser pipe 12, adopts spiral grooved tube, and the present invention adopts spiral grooved tube to be a quantum leap technically.
Air in spiral grooved tube and the outer hot water of pipe are all subject to spiral fluted disturbance, and be that primary fluid flow rapid district mobility strengthens on the one hand, be thinned negative thickness of keeping on file layer by layer on the other hand and thermal resistance is reduced, the result of both effects, all enhances the heat transfer inside and outside pipe.Spiral grooved tube heat transfer property is also relevant with helicla flute lift angle with spiral fluted pitch t, groove depth h, and relative parameter h/t heat transfer coefficient when 0.05-0.075 is better, especially with best near h/t=0.06.The heat-transfer effect of spiral grooved tube improves about 52% than light pipe, and wall temperature is than light pipe increase about 22.4 °.Spiral grooved tube also has anti-dust stratification ability, and flue gas is when the helicla flute flowing of tube wall, and spirally state is advanced, and so both adds flue gas rotary motion, increases the disturbance to tube wall simultaneously, make the flying dust carried under one's arms in flue gas not easily silence get off.
Show in figure, boiler rear wall is provided with lime powder box 17, funnel is arranged at lime powder box 17 bottom, its lower portion pipeline is connected with desulfurization pond 13, its lower portion has pulverized limestone rotor, and the water flow rotor of the supply channel in the desulfurization pond 13 of pulverized limestone rotor and dirt pocket 10 is fixed on same horizontal rotating shaft.When supply channel supplies water, water jet propulsion water flow rotor rotates, and drives pulverized limestone rotor turns simultaneously, is pushed by the pulverized limestone of its lower portion in desulfurization pond 13, is formed and automatically adds running water and pulverized limestone.The dosage of running water and the addition of pulverized limestone are directly proportional, the concentration of desulfurization pond 13 sodalime powder, according to measuring the chemical content of discharging flue gas, carry out proportioning.
Show in figure, boiler rear wall is provided with feed cistern 18, feed cistern 18 has supply channel to be connected with the desulfurization pond 13 of dirt pocket 10, has water to float opening device in feed cistern 17, water drift opening device, when the height that the liquid level gauge of water level decreasing sets, is opened water supply valve and is supplied water.
Show in figure, the bottom in desulfurization pond 13 is ramp type, and have electric blowdown valve door 19 at the bottommost on slope, electric blowdown valve door 19 is connected with the time relay, utilizes the time relay to control electric blowdown valve door 19.According to the concentration of boiler desulfurization water in dust removal, formulate blowing time, carry out automatic pollution discharge.
The present invention passes through in condenser pipe 12 due to flue gas, facilitates desulfurization, dedusting, and boiler, from then on or else with separately installing deduster, can be saved a large amount of for making material, equipment, the electric power of deduster equipment.
The parameter of one embodiment of the present of invention is as follows:
Be designed to Horizontal type inverse burning condensing boiler, thermal power rating 0.7 ton, with reference to area of heat-supply service 15000 square metres.
Appearance and size: long 2108 meters of wide 1000mm* height 1350mm*, chimney height 12 meters;
Front furnace: high 1000mm, wide 967mm, dark 800mm;
Heat Room: high 1000mm, wide 967mm, dark 500mm;
Dirt pocket: high 1000mm, wide 967mm, dark 300mm;
Front and back flue: wide 102.5mm, dark 250 mm;
Fire door is three: firing door, clean-out door, shoot door;
Heat Room has many heat exchanger tubes, and heat exchanger tube diameter is 75mm;
Condenser pipe diameter 62.5mm, is designed to two backhauls, the first backhaul length 1046mm, and the second backhaul length is 1346mm, and 8 is one group, uses 28 condenser pipes altogether, interval 12mm between condenser pipe.
Claims (7)
1. one kind has energy-saving effect and desulfurization, the condensing coal-burning boiler of dedusting function, comprise body of heater (1), combustion chamber (6), Heat Room (7), fire grate (5), chimney (8), it is characterized in that: also have condenser (9) and dirt pocket (10), condenser (9) is arranged on the water jacket (11) on the top of body of heater (1) and two side, many condenser pipes (12) are installed in water jacket (11), the import of condenser pipe (12) is connected with the exhanst gas outlet of the dirt pocket (10) at Heat Room (7) rear portion, the outlet of condenser pipe (12) is connected with chimney (8) exhaust opening, dirt pocket (10) is in the body of heater (1) at the rear portion of Heat Room (7), desulfurization pond (13) is arranged at dirt pocket (10) bottom, the desulfurization water of limy stone flour is had in desulfurization pond (13), in desulfurization pond (13), high temperature high voltage resistant pump (14) is installed, there is nozzle (15) dirt pocket (10) top, nozzle (15) is connected with high temperature high voltage resistant pump (14) by jet pipe (16), condenser pipe (12) import in body of heater (1) top water jacket (11) of described condenser (9) is connected with the exhanst gas outlet of the dirt pocket (10) at Heat Room (7) rear portion, condenser pipe (12) outlet in body of heater (1) top water jacket (11) is connected with condenser pipe (12) import in body of heater (1) two side water jacket (11), and condenser pipe (12) outlet in body of heater (1) two side water jacket (11) is connected with chimney (8) exhaust opening by chimney heat exchanger (20).
2. according to claim 1 have energy-saving effect and desulfurization, the condensing coal-burning boiler of dedusting function, it is characterized in that: chimney heat exchanger (20) is installed bottom described boiler rear wall, chimney heat exchanger (20) is rectangle box body, the upper end of chimney heat exchanger (20) is connected with the bottom of chimney (8), there is air inlet (23) rear end of chimney heat exchanger (20), the front end of chimney heat exchanger (20) is connected with boiler bottom fire grate bottom by ajutage (24), many flue gas heat exchange tubes (21) are arranged with in the cavity of chimney heat exchanger (20), one end of flue gas heat exchange tube (21) is connected with condenser exhaust opening, the other end of flue gas heat exchange tube (21) is connected with the bottom of chimney (8), the bottom of chimney (8) is provided with air-introduced machine (22).
3. the condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function according to claim 2, it is characterized in that: described condenser pipe (12) is spiral grooved tube, the ratio h/t of the groove depth h of spiral grooved tube and the helicla flute pitch t of spiral grooved tube is 0.05-0.075.
4. the condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function according to claim 3, it is characterized in that: the condenser pipe (12) in body of heater (1) the top water jacket of described condenser (9) and body of heater two side water jacket (11) is single row or multiple rows, often arranges in condenser pipe (12) and has many condenser pipes (12) arranged in parallel.
5. the condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function according to claim 4, it is characterized in that: described boiler rear wall is provided with feed cistern (18), feed cistern is provided with supply channel and automatic water supply device in (18), supply channel is connected with the desulfurization pond (13) of dirt pocket (10), and automatic water supply device place is provided with a water drift opening device.
6. the condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function according to claim 5, it is characterized in that: described boiler rear wall is provided with lime powder box (17), funnel is arranged at lime powder box (17) bottom, its lower portion has pulverized limestone rotor, and the water flow rotor of the supply channel in the desulfurization pond (13) of pulverized limestone rotor and dirt pocket (10) is fixed on same horizontal rotating shaft.
7. the condensing coal-burning boiler with energy-saving effect and desulfurization, dedusting function according to claim 6, it is characterized in that: the bottom in the desulfurization pond (13) of described dirt pocket (10) is ramp type, have electric blowdown valve door (19) at the bottommost on slope, electric blowdown valve door (19) is connected with the time relay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210285957.6A CN102798215B (en) | 2012-08-13 | 2012-08-13 | Condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions |
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| CN201210285957.6A CN102798215B (en) | 2012-08-13 | 2012-08-13 | Condensation type coal-fired boiler with high heat efficiency and desulfurizing and dedusting functions |
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| CN102798215B true CN102798215B (en) | 2014-12-24 |
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| CN103203137A (en) * | 2013-04-11 | 2013-07-17 | 济南吉玛数控设备有限公司 | Boiler smoke purification equipment |
| CN103604140B (en) * | 2013-11-13 | 2016-05-25 | 李江民 | A kind of condensing environment protection warming stove of high thermal efficiency |
| CN103816755A (en) * | 2014-03-13 | 2014-05-28 | 马张义 | High-temperature smoke collection treatment method for high-pole chimney in power plant or steel mill and special equipment for method |
| CN104949335B (en) * | 2015-07-03 | 2019-03-12 | 李江民 | A kind of efficient horizontal condensation gas industry boiler |
| CN106705433A (en) * | 2015-11-12 | 2017-05-24 | 衡阳衡锅锅炉有限公司 | Intelligent condensation boiler capable of purifying tail gas |
| CN109539545B (en) * | 2018-11-23 | 2021-05-14 | 兖矿集团有限公司 | Normal-pressure coal-fired boiler for desulfurization, denitrification and dust removal in boiler and treatment method thereof |
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| CN102798215A (en) | 2012-11-28 |
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