SU1239471A1

SU1239471A1 - Straight-through hot-water boiler

Info

Publication number: SU1239471A1
Application number: SU843828788A
Authority: SU
Inventors: Рахимжан Кабиевич Орумбаев; Владимир Васильевич Логвиненко; Григорий Николаевич Афонин
Original assignee: Казахский научно-исследовательский институт энергетики
Priority date: 1984-12-21
Filing date: 1984-12-21
Publication date: 1986-06-23

Description

1one

Изобретение относитс к теплоэнергетике , а именно к теплоснабжению, и может быть применено в водогрейных котлах малой мощности.The invention relates to a power system, namely to heat supply, and can be applied in low-power hot water boilers.

Цель изобретени - повышение надежности путем обеспечени охлаждени поверхностей нагрева при аварийном прекращении циркул ции воды.The purpose of the invention is to increase reliability by providing cooling of heating surfaces in case of emergency cessation of water circulation.

На чертеже представлена схема котла.The drawing shows a diagram of the boiler.

Пр моточный водогрейный котел содержит поверхности 1 и 2 нагрева, последовательно включенные в вод ной тракт 3 котла, сообщенный со сбросной линией 4, снабженной запорной арматурой 5, на участке 6, расположенном в верхней части котла в точке 7, дел щей вод ной тракт 3 котла на равные по сопротивлению части.The hot-water boiler contains heating surfaces 1 and 2 connected in series to the water path 3 of the boiler, communicated with a waste line 4, equipped with shut-off valves 5, in section 6, located in the upper part of the boiler at point 7, dividing the water path 3 boiler on equal parts of resistance.

Котел подключен к пр мому 8 и обратному 9 трубопроводам, последний из которых снабжен сетевым насосом 10 системы теплоснабжени , причем обратный трубопровод 9 сообщен с линией 11 подпитки. Котел снабжен также насосом 12 рециркул ции.The boiler is connected to the forward 8 and 9 reverse pipelines, the last of which is equipped with a network pump 10 of the heat supply system, with the return pipe 9 communicating with the supply line 11. The boiler is also equipped with a recycle pump 12.

При аварийном прекращении циркул ции воды вследствие, например, отключени In case of abnormal cessation of water circulation due, for example, to

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сетевого насоса 10 и насоса 12 рециркул ции открываетс запорна арматура 5 на сбросной линии 4 и вода из системы теплоснабжени начинает сливатьс через сбросную линию 4, обеспечива охлаждение поверхностей 1 нагрева при пр мом движении или поверхностей 2 при обратном. По линии 11 обеспечиваетс подпитка системы теплоснабжени . Так как сопротивление части вод ного тракта 3 с поверхност ми 1 нагрева равно сопротивлению части с поверхност ми 2, то расход сливаемой воды через все поверхности 1 и 2 нагрева будет практически равный , а осуществление слива из участка 6 вод ного тракта -3, расположенного в верхнейThe network pump 10 and the recycling pump 12 open the shut-off valves 5 on the waste line 4 and the water from the heat supply system begins to drain through the waste line 4, cooling the heating surfaces 1 during direct movement or the surfaces 2 during reverse. On line 11, a heat supply system is fed. Since the resistance of a part of the water path 3 with heating surfaces 1 is equal to the resistance of the part with surfaces 2, the flow rate of the drained water through all the surfaces 1 and 2 of heating will be almost equal, and the discharge from section 6 of the water path -3 located in top

5 части котла, обеспечивает в первую очередь удаление наиболее гор чей воды, а также пара в случае его образовани . Сбросна лини 4 может также использоватьс дл удалени воздуха при заполнении котла водой. Пр моточный водогрейный котел обеспе0 чивает повышение надежности благодар обеспечению равномерного и наиболее эффективного охлаждени поверхностей нагрева при аварийном прекращении циркул ции воды.5 parts of the boiler, ensures first of all the removal of the hottest water, as well as steam in case of its formation. Discharge line 4 can also be used to remove air when the boiler is filled with water. The boiler of hot water boilers provides increased reliability by ensuring uniform and most efficient cooling of the heating surfaces in case of emergency cessation of water circulation.

Claims

DIRECT-WATER BOILER, containing at least two heating surfaces connected in series to the boiler water path, connected to a discharge line equipped with shut-off valves, and made with a section located in the upper part of the boiler, characterized in that, in order to increase reliability by providing cooling of heating surfaces in case of emergency interruption of water circulation, the discharge line is connected with a section of the water path located in the upper part of the boiler between the heating surfaces, at a point dividing this t path to parts equal in resistance.

the network pump 10 and the recirculation pump 12, the shutoff valve 5 opens on the discharge line 4 and the water from the heat supply system begins to drain through the discharge line 4, providing cooling of the heating surfaces 1 in direct motion or surfaces 2 in the opposite. Line 11 provides recharge of the heat supply system. Since the resistance of the part of the water path 3 with the heating surfaces 1 is equal to the resistance of the part with the surfaces 2, then the flow rate of the drained water through all the heating surfaces 1 and 2 will be practically equal, and the discharge from the section 6 of the water path -3 located in the upper part of the boiler, provides first of all the removal of the hottest water, as well as steam in case of its formation. The discharge line 4 can also be used to remove air when filling the boiler with water.

The direct-flow hot water boiler provides an increase in reliability due to the uniform and most efficient cooling of the heating surfaces in the event of an emergency interruption of water circulation.