SU798411A1

SU798411A1 - Boiler heat surface

Info

Publication number: SU798411A1
Application number: SU782598777A
Authority: SU
Inventors: Иван Яковлевич Мищенко; Наум Исаакович Резник; Тамара Петровна Фролова; Леонид Михайлович Христич
Original assignee: Производственное Объединение"Красный Котельщик"
Priority date: 1978-03-31
Filing date: 1978-03-31
Publication date: 1981-01-23

Description

Изобретение относится к энергетике и может быть использовано в парогенераторах электростанций.The invention relates to energy and can be used in steam generators of power plants.

Известна поверхность нагрева котла, содержащая последовательно соединенные между собой экраны топки и холодной воронки, скрепленные с помощью автономных подвесок с металлоконструкциями потолочного перекрытия, и опускные трубы, подключенные к экранам холодной воронки, и также скрепленные с металлоконструкциями потолочного перекрытия [1]. юA known heating surface of the boiler, containing in series interconnected screens of the furnace and the cold funnel, fastened using stand-alone suspensions with metal structures of the ceiling, and downpipes connected to the screens of the cold funnel, and also bonded to the metal structures of the ceiling [1]. Yu

Недостатком конструкции является низкая надежность, обусловленная высокой нагрузкой, которую несет вертикальный экран.The design drawback is low reliability due to the high load carried by the vertical screen.

Цель изобретения — повышение надежности.The purpose of the invention is to increase reliability.

Цель достигается тем, что подвески экра- ¹⁵на холодной воронки образованы опускными трубами, а экран топки в зоне соединения с экраном холодной воронки имеет петлевые компенсационные гибы.The goal is achieved in that the screen ¹⁵ pendants on the cold funnel are formed by down pipes, and the furnace screen in the connection zone with the cold funnel screen has loop compensation bends.

На чертеже изображена схематично по- _Μверхность нагрева котла, общий вид.The drawing shows schematically po- _Μ surface heating boiler, perspective view.

Поверхность нагрева содержит последовательно соединенные экраны топки 1 и холодной воронки 2, которые скреплены соот2 ветственно с металлоконструкциями потолочного перекрытия 3 автономными подвесками 4 и опускными трубами 5. Экран 1 топки в зоне соединения с экраном 2 холодной воронки снабжен петлевыми компенсационными гибами 6.The heating surface contains consecutively connected screens of the furnace 1 and the cold funnel 2, which are fastened respectively to the metal structures of the ceiling 3 by independent suspensions 4 and lower pipes 5. The screen 1 of the furnace in the connection zone with the screen 2 of the cold funnel is equipped with loop compensation bends 6.

При пуске или останове котельной установки при работе в переходных режимах, когда возникают разности температурных перемещений, петлевые компенсационные гибы 6 позволяют компенсировать эти разности, а автономная подвеска экранов 2 холодной воронки на опускных трубах позволяет разгрузить экраны 1 топки.When starting or stopping the boiler installation during transient operation, when differences of temperature movements occur, loop compensation bends 6 make it possible to compensate for these differences, and the self-contained suspension of the screens 2 of the cold funnel on the downpipes allows unloading the screens of the furnace 1.

Таким образом, надежность поверхности нагрева котла существенно возрастает.Thus, the reliability of the heating surface of the boiler increases significantly.

Claims

The invention relates to energy and can be used in steam generators of power plants. The known heating surface of the boiler, containing successively interconnected screens of the firebox and cold funnel, fastened by means of independent suspensions with metal structures of the ceiling overlap, and standpipes connected to the screens of the cold funnel, and also fastened with metal structures of the ceiling overlap 1. Design disadvantage the reliability is low due to the high load carried by the vertical screen. The purpose of the invention is to increase reliability. The goal is achieved by the fact that the hangers of the cold funnel screen are formed by the dip pipes, and the firebox screen in the zone of connection with the cold funnel screen has loopback bends. The drawing shows schematically the heating surface of the boiler, a general view. The heating surface contains series-connected screens of the furnace 1 and cold funnel 2, which are fastened respectively to metal structures of the ceiling with 3 independent suspensions 4 and standpipes 5. Screen 1 of the furnace in the zone of connection with screen 2 of the cold funnel is equipped with loopback bends 6. At start-up or stopping the boiler plant when operating in transient conditions, when there are differences in temperature movements, loopback bends 6 allow to compensate for these differences, and autonomous on the suspension of screens 2, the cold funnels on the standpipes allow unloading the screens of 1 furnace. Thus, the reliability of the heating surface of the boiler increases significantly. The invention The heating surface of the boiler, containing successively interconnected screens of the firebox and cold funnel, fastened by means of independent suspensions with metal structures of the ceiling, and standpipes connected to the screens of the cold funnel, and also fastened with metal structures of the ceiling, characterized by that, in order to increase reliability, the cold-funnel screen hangers are formed by the lowering pipes, and the firebox screen in the zone of connection with the cold-funnel screen has loop-holes e compensatory bends.

Sources of information taken into account during the examination 1. Published for Germany No. 1576800, cl. F 22 37/24, published 1972.