CN201615467U - Vertical waste heat boiler - Google Patents
Vertical waste heat boiler Download PDFInfo
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- CN201615467U CN201615467U CN2009200136434U CN200920013643U CN201615467U CN 201615467 U CN201615467 U CN 201615467U CN 2009200136434 U CN2009200136434 U CN 2009200136434U CN 200920013643 U CN200920013643 U CN 200920013643U CN 201615467 U CN201615467 U CN 201615467U
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- boiler
- waste heat
- pipe
- drum
- cylinder
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Abstract
The utility model discloses a vertical waste heat boiler, which comprises an upper boiler cylinder and a lower boiler cylinder, and is characterized in that the boiler is a double-cylinder structure; the lower boiler cylinder is a threaded smoke pipe heat exchanger and arranged vertically; the upper boiler cylinder serves as a steam-water separator and is arranged transversely; the upper boiler cylinder and the lower boiler cylinder are connected into a whole through an ascending pipe, a descending pipe and a steel frame; a sand blasting and descaling device is arranged at the position of a smoke gas inlet of the upper potion of the lower boiler cylinder; and an economizer is arranged on the lower portion of the lower boiler cylinder. An arch-shaped, convex and/or a flat-panel pipe plate is welded on the upper boiler cylinder; the pipe plate is connected with a threaded smoke pipe welding expansion structure; fireproof concrete and pearl stone concrete are cast on the pipe plate on an inlet side of a smoke pipe; and a protective layer is appropriately cast and/or not cast on the pipe plate on an outlet side of the smoke pipe. The vertical waste heat boiler has the advantages of simple structure, convenient maintenance, safe and steady running, no corrosion and high heat efficiency, is suitable for being widely used in waste heat recycling devices in metallurgy, chemical industry and refining and chemical industries, and can effectively solve the problem of high accident rate in sodium, salt and soda recycling boilers.
Description
Technical field
The present invention relates to the recovery that chemical industry, metallurgy, sulfur recovery, alkali reclaim waste heat in the cooling that contains the sodium salt flue gas and the flue gas, belong to a kind of waste heat boiler.
Background technology
Contain the composition that is corrosive in the flue gas that the waste gas of industry danger such as chemical industry, oil refining, metallurgy, incineration of liquor produce, the characteristics of dust-laden and moisture vapor very easily form flue gas corrosion in addition.In the prior art, reclaim its used heat, existing employing water-tube boiler or multitubular boiler, also have and adopt double-drum boiler as waste heat boiler.Adopt water-tube boiler as waste heat boiler, because part adopts light pipe and/or part to adopt the transverse fin pipe as heating surface in the convection bank, the flue gas velocity of liquid assets is diminished relatively, simultaneously because the boiler operatiopn load fluctuation is bigger, and the most of the time operates in below the halfload, make that so just light pipe partial fume flow velocity is lower, transverse fin pipe flue gas flow rate is reduced to can not be from the degree of deashing ability.Flue gas flow rate is little, causes that corrosivity composition and steam condense in the flue gas, on boiler heating surface, produces the boiler heating surface corrosion of metal.Because the dust stratification of transverse fin pipe makes boiler heating surface further reduce, cause exhaust gas temperature to raise.Though collecting ash can adopt air bubble soot blower or steam sootblower to handle, the two has all directly aggravated combining of corrosivity composition and water vapour in the flue gas, has improved flue gas dew point, makes boiler just begin corrosion under higher temperature; Aggravated the flue dust accumulation owing to blow ash simultaneously, the effect of water vapour in addition causes dust stratification to be difficult to more remove.
When adopting multitubular boiler as waste heat boiler, mainly there is following problem: at first, because of it is single barrel structure, be difficult to determine the highest pyrosphere of boiler, cause the boiler operatiopn liquid fluctuating bigger, single in addition drum waste heat boiler water capacity is less, in case have a power failure suddenly or other misoperation, may cause the burning accident, be unfavorable for safe operation of the boiler; Secondly, single drum waste heat boiler must be made drum enough big in order to arrange enough boiler heating surfaces, makes steel consumption increase technological process and becomes complicated; The two drum multitubular boilers of employing are made waste heat boiler, and rising between two drums and decline tube connector are external, make boiler volume huge, system complex, and the boiler operatiopn life-span is short, and this pattern also is unfavorable for the drum safe and reliable operation.
Summary of the invention
Proposition of the present invention is intended to overcome targetedly the shortcoming of prior art, has designed the horizontal vertical waste heat boiler of vertical smoke pipe down on a kind of pair of drum, and its technical solution is achieved in that
A kind of waste heat boiler, comprise smoke inlet, upper drum, lower drum, steelframe, tedge, down-comer, connection flue economizer, exhanst gas outlet and sand blasting unit, it is characterized in that described boiler body partly is two barrel structures, lower drum adopts longitudinal for the threaded flue heat exchanger, upper drum is the pressure-bearing type drum, leaves the sand blasting unit interface at the upper boiler flue.Upper and lower drum links into an integrated entity by tedge and down-comer and steelframe, is welded with tube sheet on the wherein said lower drum, and tube sheet is connected with threaded flue expanded and welded tube joint structure, builds fire-resistant concrete and perlite concrete on smoke pipe entrance side tube sheet; Require economizer is set according to process conditions in the lower drum bottom, economizer has carried out the aluminising processing; For preventing that lower drum upper perforated plate top from depositing vapour, described tedge is drawn from lower drum top tube sheet.
Compared with prior art, advantage of the present invention mainly shows:
1, adopt two barrel structures, water capacity of the boiler is bigger, and installing clearance type steam-water separator guarantees that the water entrained by steam rate is far below 5% in the upper drum; The hydrospace is bigger, guarantees that boiler the lack of water accident can not take place in power off time, has also overcome the highest pyrosphere problem that single drum firework tube boiler can't be determined simultaneously;
2, improved load fluctuation adaptability, guaranteed the boiler operatiopn load in 20%～130% scope, operation is normal, and the afterbody economizer adopts aluminizing technology to carry out preservative treatment, needn't worry to produce cold end corrosion;
3, boiler adopts tedge from lower drum top tube sheet lead-out mode, has solved the problem that vertical boiler upper perforated plate inner top is deposited vapour;
4, the boiler upper perforated plate lays thermal insulation and waters material feeding, and installs ceramic fire resistant wear prevention sleeve pipe additional at the smoke pipe arrival end, guarantees that tube sheet is not subjected to the high-temperature flue gas erosion corrosion and the destruction that forms;
5, big and have close-burning characteristics at the waste heat boiler dust-laden, the spy has set up the top sand blasting unit, adopts discontinuity to blow grey mode, guarantees the heating surface cleaning.
Description of drawings
3 of this Figure of description, wherein:
Fig. 1 is the structural representation of the vertical waste heat boiler of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1.
Among the figure: 1, inlet flue duct, 2, sand blasting unit, 3, upper drum, 4, the platform staircase, 5, steelframe, 6, down-comer group, 7, the tedge group, 8, lower drum, 9, connect flue, 10, economizer, 11, exhaust pass, 12, boiler foundation, 13, the maintenance hand-hole, 14, put sand hole.
The specific embodiment
The vertical waste heat boiler of a kind of pair of drum as shown in Figure 1, 2, 3.Boiler inlet flue top is provided with sand blasting unit, boiler adopts goes up horizontal, following vertical two barrel structures, lower drum is a heat exchanger, arrange the threaded flue of a large amount of high efficient heat exchangings, upper drum is a drum, in be furnished with even steam vent plate, clearance type steam-water separator, last lower drum is connected as one by tedge, down-comer and supporting steel frame, concrete tedge and down-comer quantity are looked the boiler smoke property calculation and are gone out boiler output and determine, for preventing that the upper perforated plate inwall from depositing vapour, adopt tedge to draw (heavy duty boiler increases the upper lateral part tedge) by the upper perforated plate top.The upper and lower tube sheet that is welded with of lower drum, tube sheet is connected with threaded flue expanded and welded tube joint structure, builds fire-resistant concrete and perlite concrete on smoke pipe entrance side tube sheet; Look technological requirement in the lower drum bottom economizer is set,, adopt the method for aluminising that the economizer parts are carried out preservative treatment for preventing the economizer corrosion.
The built-in injecting type of upper drum reaches upward to water distribution pipe, and blow-off pipe improves steam quality.Be evenly equipped with four interface of the level gauge in end socket end, front and back, arrange liquid level gauge according to actual conditions for the user.
The water of boiler cycles through the tedge group, the down-comer group realizes.
This boiler can and connect the flue place at smoke inlet be provided with expansion joint, is used to eliminate high-temperature heating and the thermal expansion that causes; And on gas approach, connection flue and exhaust pass, manhole is set and puts sand hole, easy access and operation.
The drum outside of this boiler coats the back with colored steel bag coat with rock wool blanket.Be furnished with the platform staircase in the steelframe outside, good looking appearance, easy to operate.
Claims (3)
1. vertical waste heat boiler, comprise upper drum (3) and lower drum (8), it is characterized in that described upper drum (3) is horizontal, lower drum (8) vertically-arranged, constitute two barrel structures, upper drum (3) is a steam-water separator, lower drum (8) is a heat exchanger, on, lower drum links into an integrated entity by tedge (7) and down-comer (6) and supporting steel frame (5), sand blasting unit (2) is housed on the supporting steel frame (5), and link to each other by the interface of pipeline with inlet flue duct (1), wherein said lower drum is welded with on (8), lower perforated plate, tube sheet is connected with threaded flue expanded and welded tube joint structure; On smoke pipe entrance side tube sheet, build fire-resistant concrete and perlite concrete.
2. waste heat boiler according to claim 1 is characterized in that described boiler is last horizontal vertical down two barrel structures, and boiler back end ductwork is arranged economizer (10), and as requested economizer is carried out the aluminising preservative treatment.
3. waste heat boiler according to claim 1 and 2 is characterized in that adopting tube sheet top layout tedge (7), and steam water interface in the lower drum is drawn out to upper drum (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136434U CN201615467U (en) | 2009-05-11 | 2009-05-11 | Vertical waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200136434U CN201615467U (en) | 2009-05-11 | 2009-05-11 | Vertical waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615467U true CN201615467U (en) | 2010-10-27 |
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ID=43001835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200136434U Expired - Fee Related CN201615467U (en) | 2009-05-11 | 2009-05-11 | Vertical waste heat boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN201615467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384460A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Vertical smoke tube exhaust-heat boiler |
| CN102494345A (en) * | 2011-12-26 | 2012-06-13 | 无锡东马锅炉有限公司 | High-efficiency waste liquid combustion boiler |
| CN111156487A (en) * | 2020-03-06 | 2020-05-15 | 江苏正阳锅炉有限公司 | Waste incineration waste heat utilization boiler |
-
2009
- 2009-05-11 CN CN2009200136434U patent/CN201615467U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384460A (en) * | 2011-11-08 | 2012-03-21 | 大连易世达新能源发展股份有限公司 | Vertical smoke tube exhaust-heat boiler |
| CN102494345A (en) * | 2011-12-26 | 2012-06-13 | 无锡东马锅炉有限公司 | High-efficiency waste liquid combustion boiler |
| CN111156487A (en) * | 2020-03-06 | 2020-05-15 | 江苏正阳锅炉有限公司 | Waste incineration waste heat utilization boiler |
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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: 20101027 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |