CN101469864A - Zero discharge oil and gas boiler - Google Patents
Zero discharge oil and gas boiler Download PDFInfo
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- CN101469864A CN101469864A CNA2008101232443A CN200810123244A CN101469864A CN 101469864 A CN101469864 A CN 101469864A CN A2008101232443 A CNA2008101232443 A CN A2008101232443A CN 200810123244 A CN200810123244 A CN 200810123244A CN 101469864 A CN101469864 A CN 101469864A
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- acid
- boiler
- zero discharge
- base neutralization
- alkali
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Abstract
The invention discloses a zero discharge fuel and gas boiler comprising a boiler body, a combustion apparatus connected with the boiler body and a smoke discharging device communicated with a gas discharging port of the boiler by a smoke pipeline, a heated heat transfer surface is provided in the boiler body, the smoke discharging device comprises a washing tower, a circulation purifying mechanism and an acid and alkali neutralizing mechanism, the circulation purifying mechanism comprises a circulation pump and a spray thrower and an acid and alkali neutralizing pool respectively arranged at the top and at the bottom of the tower chamber, the circulation pump is communicated with the acid and alkali neutralizing pool by a liquid inlet pipe and is communicated with the spray thrower by a liquid outlet pipe, the acid and alkali neutralizing pool is provided with an overflow port, the acid and alkali neutralizing mechanism comprises an acid-alkali scale detector arranged in the acid and alkali neutralizing pool and an acid / alkali liquor dispenser communicated with the acid and alkali neutralizing pool, the zero discharge fuel and gas boiler has characteristics of sufficient utilization of the fuel heat (heat zero discharge) and the smoke pollutant zero discharge, can be extensively used for high-efficiency low-pollution boiler industry.
Description
Technical field
The present invention relates to boiler, refer more particularly to a kind of Zero discharge oil and gas boiler.
Background technology
As everyone knows, oil-burning gas-fired boiler is compared with coal-burning boiler, and the pollutant component in the discharged flue gas---flue dust, SO2, NOx, TSP, CO want much less; In using energy source, its thermal efficiency can be up to (according to the fuel higher calorific value, being 80% for gas fuel) more than 90% according to the fuel Lower heat value, and is higher by 5～10% than coal-burned industrial boiler.Therefore, the utilization of fuel oil and gas energy presents the trend that rises year by year.When using oil-burning gas-fired boiler to carry out the heat conversion, oil-burning gas-fired boiler discharged flue gas temperature between 150～250 degrees centigrade, has contained a large amount of heats along with flue gas has lost usually in the flue gas---and this part heat will account for 10～20% of fuel total amount of heat usually; In addition, in fuel oil, combustion gas, still contain the compound of a spot of sulphur and sulphur, in the high-temp combustion process, can react with airborne nitrogen and oxygen, and when acting as a fuel, also can produce part carbon black suspension (TSP) with fuel oil.Hence one can see that, the fume emission of the oil-burning gas-fired boiler environmental protection standard that also is far from reaching, and also a large amount of heats in the flue gas do not obtain reclaiming yet.
Summary of the invention
A technical problem to be solved by this invention is: a kind of Zero discharge oil and gas boiler of removing the pollutant component in the flue gas is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Zero discharge oil and gas boiler, comprise: boiler body and the burner that links to each other with boiler body, and the fume extractor that is connected with the boiler exhaust mouth by flue, be provided with the heat-transfer area that is heated in the boiler body, described fume extractor comprises scrubbing tower, circularly purifying mechanism and acid-base neutralization mechanism, circularly purifying mechanism comprises circulating pump, and the spray thrower and the acid-base neutralization pond that are separately positioned on top, tower chamber and bottom, circulating pump is connected with the acid-base neutralization pond by feed tube, be connected with spray thrower by drain pipe, the acid-base neutralization pond is provided with overfall, and acid-base neutralization mechanism comprises acid-base value detector that is arranged in the acid-base neutralization pond and the acid/alkali lye dispensing device that communicates with the acid-base neutralization pond.
Further technical problem to be solved by this invention is: the Zero discharge oil and gas boiler that the waste heat in a kind of recyclable flue gas is provided.
For solving above-mentioned further technical problem, the technical solution used in the present invention is: the pipeline of described feed tube or drain pipe is provided with waste-heat recovery device.
The invention has the beneficial effects as follows: the present invention will dispose compositions such as the flue dust the flue gas, SO2, NOx, TSP, CO through scrubbing tower from the flue gas that the boiler exhaust mouth comes out, make the flue gas that from scrubbing tower, emits reach environmental protection standard, realized zero emission; In addition, also, the waste heat in the flue gas is reclaimed, thereby realized the heat zero-emission by waste-heat recovery device is set.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, burner, 2, the heat-transfer area that is heated, 3, boiler body, 4, inner chamber, 5, working media inlet, 6, the working media outlet, 7, flue, 8, scrubbing tower, 9, spray thrower, 10, acid-base neutralization pond, 11, feed tube, 12, circulating pump, 13, drain pipe, 14, the boiler exhaust mouth, 15, acid/alkali lye dispensing device, 16, waste-heat recovery device, 17, overfall, 18, exhaust opening.
The specific embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.
As shown in Figure 1, a kind of Zero discharge oil and gas boiler of the present invention, comprise: boiler body 3 and the burner 1 that links to each other with boiler body 3, and the fume extractor that is connected with boiler exhaust mouth 14 by flue 7, be provided with the heat-transfer area 2 that is heated in the boiler body 3, be heated and be formed for the inner chamber 4 of splendid attire fluid working medium (being generally water and steam) between heat-transfer area 2 and the boiler body 3, also be provided with the working media inlet 5 and the working media outlet 6 that communicate with inner chamber 4 on the boiler body 3, described fume extractor comprises scrubbing tower 8, circularly purifying mechanism and acid-base neutralization mechanism, circularly purifying mechanism comprises circulating pump 12 again, and be arranged on scrubbing tower 8 top, tower chamber spray thrower 9 and be arranged on the acid-base neutralization pond 10 of the bottom, tower chamber of scrubbing tower 8, circulating pump 12 is connected with acid-base neutralization pond 10 by feed tube 11, be connected with spray thrower 9 by drain pipe 13, acid-base neutralization pond 10 is provided with overfall 17, acid-base neutralization mechanism comprises again: the acid-base value detector that is arranged in the acid-base neutralization pond 10 (does not draw among the figure, but this does not influence the understanding of those skilled in the art to present embodiment) and acid/alkali lye dispensing device 15 of communicating with acid-base neutralization pond 10, in the present embodiment, splendid attire is alkali lye in acid/alkali lye dispensing device 15; The pipeline of described drain pipe 13 is provided with waste-heat recovery device 16; Certainly, described waste-heat recovery device 16 also can be arranged on the pipeline of feed tube 11.
Operation principle of the present invention is: burner 1 burning fuel oil or combustion gas, produce thermal-flame and high-temperature flue gas, containing a large amount of heats in thermal-flame and the high-temperature flue gas, this heat is passed to working media in the inner chamber 4 by the heat-transfer area 2 that is heated of boiler body 3, working media is sent into boiler from working media inlet 5, the working media that has been heated is drawn boiler body 3 by working media outlet 6, is sent to the user.And enter the flue 7 from boiler exhaust mouth 14 with flue gas (its temperature is usually about 150～250 ℃) after heat-transfer area 2 heat exchange of being heated, and send in the scrubbing tower 8 by flue 7, flue gas through the spray thrower 9 in the scrubbing tower 8 time, the SO that is contained in the flue gas
2, NOx, TSP, CO and the heat that has absorbed, form high temperature, acid condensate water by the water from spray thrower 9 ejections, accumulate in the acid-base neutralization pond 10 of scrubbing tower 8 bottoms; Removed the SO that is contained
2, NOx, TSP, CO the exhaust opening 18 of clean flue gas by scrubbing tower 8 be discharged into atmosphere; Accumulate in high temperature, acid condensate water in the acid-base neutralization pond 10, detect the acidity of described condensed water by the acid-base value detector that links to each other with acid/alkali lye dispensing device 15, then, automatically add an amount of basic agent, the neutral water that is neutralized back formation enters circulating pump 12 by feed tube 11, pump, enter in the drain pipe 13 by circulating pump 12 then, in drain pipe 13 by waste-heat recovery device 16 with the waste heat recovery in the water, water after being cooled enters 9 pairs of flue gases of spray thrower and carries out spray washing, has so just formed a process of flue gas being carried out the circularly purifying processing.In this circularly purifying processing procedure, the water in the acid-base neutralization pond 10 can be cumulative, and unnecessary water is discharged scrubbing tower 8 by overfall 17.
The present invention will dispose compositions such as the flue dust the flue gas, SO2, NOx, TSP, CO through scrubbing tower 8 from the flue gas that boiler exhaust mouth 14 comes out, and make the flue gas that emits from scrubbing tower 8 reach environmental protection standard, realize zero emission; In addition, also, the waste heat in the flue gas is reclaimed, thereby realized the heat zero-emission by waste-heat recovery device 16 is set.
Claims (2)
1. Zero discharge oil and gas boiler, comprise: boiler body and the burner that links to each other with boiler body, and the fume extractor that is connected with the boiler exhaust mouth by flue, be provided with the heat-transfer area that is heated in the boiler body, it is characterized in that: described fume extractor comprises scrubbing tower, circularly purifying mechanism and acid-base neutralization mechanism, circularly purifying mechanism comprises circulating pump, and the spray thrower and the acid-base neutralization pond that are separately positioned on top, tower chamber and bottom, circulating pump is connected with the acid-base neutralization pond by feed tube, be connected with spray thrower by drain pipe, the acid-base neutralization pond is provided with overfall, and acid-base neutralization mechanism comprises acid-base value detector that is arranged in the acid-base neutralization pond and the acid/alkali lye dispensing device that communicates with the acid-base neutralization pond.
2. Zero discharge oil and gas boiler as claimed in claim 1 is characterized in that: the pipeline of described feed tube or drain pipe is provided with waste-heat recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101232443A CN101469864A (en) | 2008-06-12 | 2008-06-12 | Zero discharge oil and gas boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101232443A CN101469864A (en) | 2008-06-12 | 2008-06-12 | Zero discharge oil and gas boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101469864A true CN101469864A (en) | 2009-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101232443A Pending CN101469864A (en) | 2008-06-12 | 2008-06-12 | Zero discharge oil and gas boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101469864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504676A (en) * | 2017-09-22 | 2017-12-22 | 北京中科传能环保技术有限公司 | Gas fired-boiler with purification function |
-
2008
- 2008-06-12 CN CNA2008101232443A patent/CN101469864A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504676A (en) * | 2017-09-22 | 2017-12-22 | 北京中科传能环保技术有限公司 | Gas fired-boiler with purification function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090701 |