CS238862B1 - Drum steam boiler tower design - Google Patents
Drum steam boiler tower design Download PDFInfo
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- CS238862B1 CS238862B1 CS831915A CS191583A CS238862B1 CS 238862 B1 CS238862 B1 CS 238862B1 CS 831915 A CS831915 A CS 831915A CS 191583 A CS191583 A CS 191583A CS 238862 B1 CS238862 B1 CS 238862B1
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- drum
- steam boiler
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- evaporator
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Abstract
Vynález sa týká oboru parných kotlov s prirodzenou alebo povzbudenou cirkuláciou. Predmetom vynálezu je bubnový parný kotol věžového prevedenia s prirodzenou, alebo nútenou cirkuláciou. Podstata vynálezu spočívá v tom, že steny ohniska bubnového parného kotlá zaústěné do bubna sú vytvořené rúrkovými stěnami, výparníka, na ktoré v hornej časti nadvazuje spalínový kanál, pričom steny kanála sú tvořené rúrkovými stěnami prehrievača páry, v ktorom sú umiestnené ostatně výhřevné plochy tlakového systému bubnového parného kotlá, pričom bubon je umiestnený v bezprostrednej blízkosti rúrkových stien výparníka. Vynález je možné -využit pri konštrukcii parných kotlov s prirodzenou, alebo povzbudenou cirkuláciou.The invention relates to the field of steam boilers with natural or forced circulation. The subject of the invention is a drum steam boiler of a tower design with natural or forced circulation. The essence of the invention lies in the fact that the walls of the firebox of the drum steam boiler opening into the drum are formed by tubular walls of the evaporator, to which a flue gas channel continues in the upper part, the walls of the channel being formed by tubular walls of the steam superheater, in which the heating surfaces of the pressure system of the drum steam boiler are located, the drum being located in the immediate vicinity of the tubular walls of the evaporator. The invention can be used in the construction of steam boilers with natural or forced circulation.
Description
Vynález sa týká bubnového parného kotlá věžového prevedenia s bubnom, umiestneným nad výparníkovou časťou kotlá.The invention relates to a drum steam boiler of a tower design with a drum positioned above the evaporator part of the boiler.
Pri kotloch, projektovaných v súčasnej do.be predovšetkým s prirodzenou cirkuláciou, sa používá tzv. dvojťahové prevedenie, pričom prvý tah je vzostupný, tvoří ho spa1'ovacia komora s výparníkom, priečny tah je vodorovný, alebo šikmý, sú v ňom umiestnené spravidla preihrievačové a medziprehrievačové plochy a druhý tah zostupný, a sú v ňom umiestnené ostatně plochy, ako ohrievač vzduchu, ohrievač vody a niekedy i vstupný prehrievač.For boilers designed in the current house, especially with natural circulation, so-called boilers are used. two-stroke design, the first draft is ascending, consists of a combustion chamber with the evaporator, the transverse draft is horizontal or inclined, there are generally superheater and intermediate superheat surfaces and the second draft is descending, and other surfaces such as the heater air, a water heater and sometimes an inlet heater.
Toto riešenie je náročné na konštrukčné prvky, půdorysnú plochu, stažené sú podmienky pre umiestnenie pomocných zariadení pod kotlom, ako mlynice, ventilátorov a pod. Najváčšou nevýhodou týchto riešení je, že změnou směru prúdenia spalin dochádza zvlášť u kotlov, spalújúcich vysokopopolnaté tuíhé pálivá, k nerovnoměrnému roízdeleniu prúdu spalin a unášaného popolčeka a tým k nadmernej abrazii výhřevných ploch a k zníženiu životnosti zariadenia.This solution is demanding on construction elements, ground plan, conditions for placing auxiliary equipment under the boiler, such as grinders, fans and the like, are withdrawn. The biggest disadvantage of these solutions is that by changing the flow direction of the flue gas, especially in boilers firing high-ash solid fuels, the uneven distribution of the flue gas flow and the entrained fly ash, and thus the abrasion of the heating surfaces and the service life of the device.
Uvedené nedostatky odstraňuje parný kotol podl'a vynálezu, ktorého podstata spočívá v tom, že steny ohniska zaústěné do bubna sú vytvořené rúrkovými stěnami výparníka, na ktoré v hornej časti nadvázuje spalinový ikanál, pričom steny kanála isú tvořené rúrkovými stěnami prehrievača páry, v ktorom sú umiestnené ostatně výhřevné plochy tlakového systému bubnového parného kotlá, pričom bubon je umiestnený v bezprostrednej blízkosti rúrkových stien výparníka.The above-mentioned drawbacks are remedied by the steam boiler according to the invention, which consists in that the walls of the furnace opening into the drum are formed by the tubular walls of the evaporator, to which the flue gas channel is connected in the upper part. located the heating surfaces of the pressure system of the drum steam boiler, the drum being located in the immediate vicinity of the evaporator tube walls.
Výhodou takéhoto riešenia je, že věžové prevedenie parného kotlá je možné použiť pre kotly s prirodzenou ako i povzbudenou cirkúláciou, pričom cirkulačně poměry výparníkového okruhu sú zlepšené tým, že rúrky výparníka sú umiestnené len v priestore ohniska s vysokým tepelným zatažením a bubon má krátké prepojovacie potrubia s malými tlakovými stratami,.. .The advantage of such a solution is that the tower design of the steam boiler can be used for boilers with natural as well as stimulated circulation, the circulation ratios of the evaporator circuit being improved by the evaporator tubes being located only in the high-loading furnace and the drum has short interconnecting piping with low pressure losses, ...
Tým, že bubon nie je umiestnený v hornej časti tlakového systému kotlá'/-'skráti sa dížka zavodňováních rúr velkého priemeru. Takovéto riešenie umožní využiť prirodzenú cirkuláciu i pre vyššie tlaky pracovného média bez potřeby oběhových čerpadiel. Prevedenie kotlá podl'a návrhu sa zjednoduší, pretože nie je nutný šikmý tah, zjednoduší sa strop kotlá a znížia sa tlakové straty na straně spalin, v důsledku čoho i vlastná spotřeba elektrickej energie bloku.By not placing the drum in the upper part of the pressure system of the boiler, the length of the large diameter irrigation pipes is shortened. Such a solution enables the use of natural circulation even for higher pressures of the working medium without the need of circulation pumps. The design of the boilers according to the design will be simplified because no skewing is required, the boiler ceiling will be simplified and the pressure losses on the flue gas side will be reduced and consequently the power consumption of the unit itself.
Riešenie podta vynálezu je znázorněné na priloženom obrázku, kde ohnisko 1 je tvořené rúrkovými stěnami 2 výparníka, na ktoré navazuje v hornej časti spalinový kanál 3, ktorý je tvořený rúrkovými stěnami 4 prehrievača páry. V spalinovom kanále 3 sú umiestnené ostatně výhřevné plochy 5 tlakového systému parného kotlá.The solution according to the invention is shown in the attached figure, where the focus 1 is formed by the tube walls 2 of the evaporator, which is connected in the upper part by a flue gas duct 3, which is formed by the tube walls 4 of the steam superheater. In the flue gas duct 3, the heating surfaces 5 of the steam boiler pressure system are located.
Cirkulačný okruh bubnového parného kotlá je tvořený rúrkovými stěnami 2 výparníka, ktoré sú zaústěné do bubna 6, z ktorého je odlúčená para vedená prevádzacími rúrami 7 do závěsných rúrok 8 prehrievača páry. Voda, odlúčená v bubne 6, je vedená zavodňovacími rúrami 9 a rozdetovacími rúrkami 10 do spodnej časti rúrkových stien 2 výparníka.The circulating circuit of the drum steam boiler is formed by tubular walls 2 of the evaporator, which are connected to the drum 6, from which the steam is guided through the transfer tubes 7 into the heater tubes 8 of the steam superheater. The water separated in the drum 6 is led through the irrigation pipes 9 and the distribution pipes 10 to the bottom of the evaporator tube walls 2.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS831915A CS238862B1 (en) | 1983-03-21 | 1983-03-21 | Drum steam boiler tower design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS831915A CS238862B1 (en) | 1983-03-21 | 1983-03-21 | Drum steam boiler tower design |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS191583A1 CS191583A1 (en) | 1985-05-15 |
| CS238862B1 true CS238862B1 (en) | 1985-12-16 |
Family
ID=5354712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS831915A CS238862B1 (en) | 1983-03-21 | 1983-03-21 | Drum steam boiler tower design |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS238862B1 (en) |
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1983
- 1983-03-21 CS CS831915A patent/CS238862B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS191583A1 (en) | 1985-05-15 |
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