CN201050793Y - Boiler high-performance energy-saving dust-removing preheating system - Google Patents

Boiler high-performance energy-saving dust-removing preheating system Download PDF

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Publication number
CN201050793Y
CN201050793Y CNU2007200630923U CN200720063092U CN201050793Y CN 201050793 Y CN201050793 Y CN 201050793Y CN U2007200630923 U CNU2007200630923 U CN U2007200630923U CN 200720063092 U CN200720063092 U CN 200720063092U CN 201050793 Y CN201050793 Y CN 201050793Y
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CN
China
Prior art keywords
water
preheating
boiler
inlet
dust
Prior art date
Application number
CNU2007200630923U
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Chinese (zh)
Inventor
熊选祖
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熊选祖
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Priority to CNU2007200630923U priority Critical patent/CN201050793Y/en
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Publication of CN201050793Y publication Critical patent/CN201050793Y/en

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Abstract

A boiler high-efficiency energy-saving de-dust preheating system is composed of a boiler, a granite duster, an exhauster, and relative pipes. The utility model is characterized in that a preheating dust trunk composed of an air intake room, an air outlet room, a preheating room, and a dust chamber is arranged between a boiler flue and the granite duster. The preheating room is provided with a water inlet tube, a water outlet tube, and a plurality of steel tubes, the dust chamber is arranged with a water injection nozzle, the smoke of the boiler exchanges heat with water via the air inlet room in the preheating room, to increase the temperature of inlet cold water to 80-100DEG C to be fed into boiler to stabilize the steam pressure in the boiler and save fuel, the water sprayed via the nozzle from the dust chamber filters the dust in the smoke to reduce temperature and enter into the granite duster via the air outlet room to remove dust further, to be discharged via the outlet of the exhauster. The utility model has simple structure, better preheating effect and better de-dust effect, which can save fuel of boiler, feed high-temperature water, and reach first discharge standard of boiler smoke, to resolve environment pollution of boiler smoke.

Description

A kind of high efficiency boiler energy-saving dedusting pre-heating system
[technical field]
The utility model is a kind of energy-efficient dedusting pre-heating system that is used for boiler.
[background technology]
As everyone knows, boiler is to utilize fire coal or oil firing water to be heated the equipment that produces steam or output boiling water.This boiler will produce a large amount of flue dust when working, and takes away a large amount of heats simultaneously, and it not only will waste thermal source, also wants contaminated environment; Being input into the water of boiler in addition, generally is cold water, and be heated to boiling to cold water needs a large amount of heat energy.The operating cost height of therefore existing boiler, consumes energy is many, and is big to the pollution of environment, and vast boiler user urgently wishes to have a kind of can cutting down the consumption of energy, and does not have or seldom have pollution and the low boiler of operating cost to come out to environment.
[summary of the invention]
Above-mentioned defective when having boiler operatiopn now for overcoming, the utility model provides a kind of energy-efficient dedusting pre-heating system, to reach energy savings, reduces or eliminates pollution, reduces the purpose of boiler operatiopn cost.
For solving its technical problem, the technical solution adopted in the utility model is: native system comprises boiler, water supply installation, granite duster and air-introduced machine, and its feature is:
1. between the flue of boiler and granite duster, be provided with the preheating dust-removing box, be provided with inlet plenum, discharge chamber, preheating water tank and water spray dirt pocket in this casing, the inlet of inlet plenum is connected with the flue of boiler by pipeline, the outlet of inlet plenum is connected with the air inlet of dirt pocket by the many metal tubes that pass the preheating water tank, be provided with water inlet pipe and a plurality of sprinkler head in the dirt pocket, the dirt pocket gas outlet is connected with discharge chamber through the many metal tubes that pass water tank, and the outlet of discharge chamber is connected with the inlet of granite duster by pipeline.
2. on preheating water tank's upper portion side wall, be provided with the relief tube and the water inlet pipe of releasing unnecessary steam, water inlet pipe mouth is connected with soft water pond or water pump by pipeline, lower sides is provided with outlet pipe, and the mouth of pipe of outlet pipe is connected with the water inlet pipe of boiler by aqueduct.
3. be provided with a plurality of fountain heads in the water spray dirt pocket, each fountain head is connected with water circulating pump by water-supply-pipe; Bottom at the water spray dirt pocket is provided with slag notch, and slag notch is provided with cleanout door.
4. top one end of preheating dust arrester is an inlet plenum, the other end is a discharge chamber, middle part at the preheating dust arrester is provided with the preheating water tank, be provided with many steel pipes in the water tank, be provided with the water spray dirt pocket in the bottom of preheating dust arrester, preheating water tank's many steel pipes, an end communicates with inlet plenum, or discharge chamber communicates, and the other end communicates with dirt pocket through the pre-plate of water spray dirt pocket.
5. the end at granite duster links to each other with the gas outlet of preheating dust arrester, and the other end is connected with the inlet of air-introduced machine, and the air outlet of air-introduced machine is connected with atmospheric environment.
The beneficial effects of the utility model are:
1. owing to be provided with the preheating water tank in the native system, the flue gas heat of 230~270 ℃ of flues can be heated up to water tank soft water, allow boiler replenish 80~100 ℃ of hot water constantly, guarantee that boiler has stable steam pressure, also can save simultaneously cold water is risen to 80~100 ℃ of required energy, reach purpose of energy saving.
2. because native system is provided with the i.e. dedusting for the first time of water spray deduster, make crude particle dust a large amount of in the flue gas in dirt pocket, pass through water pipe spray dust at the bottom of dirt pocket, and then through the granite duster purifying and stive second time, behind this two-stage dust arrester, make the fume emission of chimney can reach national grade one discharge standard, substantially eliminated the pollution of boiler smoke, solved people's serious hope pollution difficult problem for a long time environment.
3. because native system is lowered the temperature by the preheating water tank to flue gas and water spray dedusting cooling dedusting, greatly reduce temperature, can improve the service life of fan bearing, reduce recondition expense, help reducing the operating cost of boiler through the air-introduced machine flue gas.
[description of drawings]
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 boiler, the water inlet pipe of 2 boilers, 3 boiler smoke pipelines, 4 preheating dust-removing boxs, 5 steel pipes, 6 inlet plenums, 7 dividing plates, 8 discharge chambers, 9 preheating dust cleaning case escape pipes, 10 granite dusters, the air inlet pipe of 11 air-introduced machines, 12 air-introduced machines, 13 air-introduced machine escape pipes, 14 relief tubes, 15 preheating water tanks' water inlet pipe, 16 water level meters, 17 slag notches, 18 preheating water tanks, 19 dirt pockets, 20 fountain heads, 21 shower nozzle water pipes.
[specific embodiment]
With reference to accompanying drawing: the utility model is made up of boiler 1, preheating dust cleaning case 4, granite duster 10, air-introduced machine 12 and the pipeline that connects each other.Its feature is to be serially connected with preheating dust cleaning case 4 between boiler flue 3 and granite duster 10, this preheating dust cleaning case top is separated into the inlet plenum 6 of an end and the discharge chamber 8 of the other end by dividing plate 7, the air inlet of inlet plenum is connected with the flue of boiler 3, in order to the input flue gas, be provided with preheating water tank 18 at the middle part of preheating dust cleaning case, be provided with dirt pocket 19 in the bottom of preheating dust cleaning case, in the preheating water tank, be provided with the steel pipe 5 of many up/down perforations, the upper end of this steel pipe communicates with inlet plenum 6, the lower end communicates with dirt pocket 19, in order to supplied flue gases.When being full of cold water in preheating chamber, flue gas carries out heat exchange through steel pipe to water, makes the water of preheating chamber be warming up to 80~100 ℃; Preheating water tank's top is provided with relief tube 14, cold water inlet 15 and the water level meter 16 of releasing unnecessary steam, and the preheating water tank bottom is provided with delivery port, and this delivery port is connected with boiler water inlet pipe 2 by pipeline; In dirt pocket, be provided with shower nozzle water pipe 21, the shower nozzle water pipe is provided with a plurality of fountain heads 20, by running water or water circulating pump shower nozzle water pipe 21 is supplied water, shower nozzle will spray water smoke, make the flue dust in the flue gas be drenched by water, enter discharge chamber 8 through steel pipe then, the sidewall of discharge chamber is provided with induced duct 9, this induced duct links to each other with the input port of granite duster 10, the air-vent of granite duster 10 links to each other with the induced duct 11 of air-introduced machine 12 by pipeline, the induced duct 13 of air-introduced machine communicates with big chamber, in order to will be through lowering the temperature, the cryogenic gas of dedusting in atmosphere, greatly reduces the discharging of the heat and the sulfur dioxide of flue gas by smoke stack emission.

Claims (5)

1. high efficiency boiler energy-saving dedusting pre-heating system, comprise boiler, water supply installation, granite duster and air-introduced machine, it is characterized in that: between the flue of boiler and granite duster, be provided with the preheating dust-removing box, be provided with inlet plenum in this casing, discharge chamber, preheating water tank and water spray dirt pocket, the inlet of inlet plenum is connected with the flue of boiler by pipeline, the outlet of inlet plenum is connected with the air inlet of dirt pocket by the many metal tubes that pass the preheating water tank, be provided with water inlet pipe and a plurality of sprinkler head in the dirt pocket, the dirt pocket gas outlet is connected with discharge chamber through the many metal tubes that pass water tank, and the outlet of discharge chamber is connected with the inlet of granite duster by pipeline.
2. high efficiency boiler energy-saving dedusting pre-heating system according to claim 1, it is characterized in that: on preheating water tank's upper portion side wall, be provided with the relief tube and the water inlet pipe of releasing unnecessary steam, water inlet pipe mouth is connected with soft water pond or water pump by pipeline, lower sides is provided with outlet pipe, and the mouth of pipe of outlet pipe is connected with the water inlet pipe of boiler by aqueduct.
3. high efficiency boiler energy-saving dedusting pre-heating system according to claim 1 and 2 is characterized in that: be provided with a plurality of fountain heads in the water spray dirt pocket, each fountain head is connected with water circulating pump by water-supply-pipe; Bottom at the water spray dirt pocket is provided with slag notch, and slag notch is provided with cleanout door.
4. high efficiency boiler energy-saving dedusting pre-heating system according to claim 1, it is characterized in that: top one end of preheating dust-removing box is an inlet plenum, the other end is a discharge chamber, middle part at the preheating dust-removing box is provided with the preheating water tank, be provided with many steel pipes in the water tank, be provided with the water spray dirt pocket, preheating water tank's many steel pipes in the bottom of preheating dust-removing box, one end communicates with inlet plenum or discharge chamber communicates, and the other end communicates with the water spray dirt pocket behind water spray dirt pocket top board.
5. high efficiency boiler energy-saving dedusting pre-heating system according to claim 1, it is characterized in that: the inlet end at granite duster links to each other with the gas outlet of preheating dust-removing box, the outlet side of granite duster is connected with the inlet of air-introduced machine, and the air outlet of air-introduced machine is connected with atmospheric environment.
CNU2007200630923U 2007-04-26 2007-04-26 Boiler high-performance energy-saving dust-removing preheating system CN201050793Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200630923U CN201050793Y (en) 2007-04-26 2007-04-26 Boiler high-performance energy-saving dust-removing preheating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200630923U CN201050793Y (en) 2007-04-26 2007-04-26 Boiler high-performance energy-saving dust-removing preheating system

Publications (1)

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CN201050793Y true CN201050793Y (en) 2008-04-23

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101655320B (en) * 2009-09-15 2011-01-05 东北大学 Recycling and utilization method of residual heat resources in sintering process and device thereof
CN103868089A (en) * 2014-03-31 2014-06-18 姚小金 Combustion furnace flue gas treatment device
CN103884018A (en) * 2014-03-31 2014-06-25 姚小金 Multistage flue gas treatment device for combustion furnace
CN105066157A (en) * 2015-08-14 2015-11-18 吉首大学 Tail gas recovery dust removal type coal-fired boiler
CN105115152A (en) * 2015-09-17 2015-12-02 哈尔滨市金京锅炉有限公司 Hot water boiler with preheating water tank
CN105135414A (en) * 2015-08-14 2015-12-09 吉首大学 Tail heat recycling and dust removing type coal-fired boiler
CN105258335A (en) * 2015-09-17 2016-01-20 哈尔滨市金京锅炉有限公司 Boiler with exhaust gas heat utilizing device
CN105688574A (en) * 2016-03-21 2016-06-22 安徽未名生物环保有限公司 Treatment device for tail gas
CN105757963A (en) * 2016-04-25 2016-07-13 句容鼎勤容惠金属制品有限公司 Energy-saving boiler

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101655320B (en) * 2009-09-15 2011-01-05 东北大学 Recycling and utilization method of residual heat resources in sintering process and device thereof
CN103868089A (en) * 2014-03-31 2014-06-18 姚小金 Combustion furnace flue gas treatment device
CN103884018A (en) * 2014-03-31 2014-06-25 姚小金 Multistage flue gas treatment device for combustion furnace
CN105066157A (en) * 2015-08-14 2015-11-18 吉首大学 Tail gas recovery dust removal type coal-fired boiler
CN105135414A (en) * 2015-08-14 2015-12-09 吉首大学 Tail heat recycling and dust removing type coal-fired boiler
CN105066157B (en) * 2015-08-14 2017-11-28 盐城衍易科技有限公司 A kind of tail recuperation of heat cleaning type coal-burning boiler
CN105115152A (en) * 2015-09-17 2015-12-02 哈尔滨市金京锅炉有限公司 Hot water boiler with preheating water tank
CN105258335A (en) * 2015-09-17 2016-01-20 哈尔滨市金京锅炉有限公司 Boiler with exhaust gas heat utilizing device
CN105688574A (en) * 2016-03-21 2016-06-22 安徽未名生物环保有限公司 Treatment device for tail gas
CN105757963A (en) * 2016-04-25 2016-07-13 句容鼎勤容惠金属制品有限公司 Energy-saving boiler

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Granted publication date: 20080423

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