SU981750A1

SU981750A1 - Boiler unit

Info

Publication number: SU981750A1
Application number: SU772506336A
Authority: SU
Inventors: Петр Николаевич Евсеев; Иван Иванович Дацков; Владимир Феликсович Гурский; Петр Николаевич Слушкин
Original assignee: Всероссийский научно-исследовательский и проектно-технологический институт механизации животноводства
Priority date: 1977-07-11
Filing date: 1977-07-11
Publication date: 1982-12-15

Description

Изобретение относится к теплоэнергетике и может быть использовано в устройствах котельных установок, преимущественно для сельского хозяйства.The invention relates to a power system and can be used in devices of boiler plants, mainly for agriculture.

Известна котельная установка, содержащая подключенный к питательному баку прямоточный паровой котел [1J -.Known boiler plant containing connected to the feed tank direct-flow steam boiler [1J -.

Недостатком известного устройства 'является низкая надежность работы йэ, за интенсивных отложений на поверхностях нагрева котла вследствие отсутствия замкнутой циркуляции между котлом и питательным, баком.A disadvantage of the known device 'is the low reliability of the operation, for intensive deposits on the heating surfaces of the boiler due to the lack of closed circulation between the boiler and the feed tank.

Наиболее близкой к изобретению по β технической сущности является котельная установка, содержащая питательный бак и электродный паровой котел, снабженный расположенным ниже электродов водоподводящим, а в зоне между послед- 20 ним и электродами - вод ©отводящим пат, рубками, подключенными к упомянутому 'питательному баку опускным и подъемным трубопроводами соответственно £ 2./] .Closest to the invention according to β technical essence is a boiler plant containing a feed tank and an electrode steam boiler, equipped with a water supply located below the electrodes, and a water © discharge path, cuttings connected to the said feed tank in the area between the last 20 and the electrodes lowering and lifting piping, respectively £ 2. /].

Однако недостаточная интенсивность ’ замкнутой циркуляции воды между пита-<тельным баком и котлом снижает надежность работы котла за счет значительной концентрации солей в нем.However, the insufficient intensity of the closed circulation of water between the feed tank and the boiler reduces the reliability of the boiler due to the significant concentration of salts in it.

Целью изобретения является повышение надежности работы котельной установки путем интенсификации замкнутой циркуляции воды между питательным баком и котлом.The aim of the invention is to increase the reliability of the boiler installation by intensifying the closed circulation of water between the feed tank and the boiler.

Указанная цель достигается тем, что ' котел снабжен дополнительным водоотводящим патрубком, расположенным выше ·. нижних концов электродов котла и подключенным к подъемному трубопроводу.This goal is achieved by the fact that 'the boiler is equipped with an additional drain pipe located above ·. lower ends of the boiler electrodes and connected to the lifting pipe.

На чертеже изображена котельная предлагаемая установка.The drawing shows a boiler plant of the proposed installation.

Установка содержит питательный бак и электродный котел 2, снабженный расположенным ниже электродов 3 водоподводящим патрубком 4 и водоотводяшим патрубком 5, расположенным между электродами 3 и водоподводяшим патрубкомThe installation comprises a feed tank and an electrode boiler 2, equipped with a water supply pipe 4 located below the electrodes 3 and a water pipe 5 located between the electrodes 3 and the water pipe

4. Водоподводящий и водоотводящий па3 961750 4 трубки 4 и 5 соответственно опускным и подъемным трубопроводами 6 и 7 подключены к питательному баку 1. Выше нижних концов электродов 3 установлен дополнительный водоотводящий патрубок 5 8, подключенный к подъемному трубопроводу 7. Котельная установка снабжена также патрубком 9 для отвода пара, . ’регулятором 10 уровня воды в питательном баке 1, вентилями 11 и 12, а также*О теплообменниками 13 и 14, установленными соответственно на подъемном 7 и опускном 6 трубопроводах. Упомянутые теплообменники 13 и- 14 подключены к подпитывающей магистрали 15. Выбирая *5 теплообменники с различной площадью теплообменной поверхности, можно .регулировать интенсивность естественной ' циркуляции в установке.4. Water supply and water drain pa3 961750 4 tubes 4 and 5, respectively, the lower and lift pipelines 6 and 7 are connected to the feed tank 1. Above the lower ends of the electrodes 3 is installed an additional water discharge pipe 5 8 connected to the lift pipe 7. The boiler unit is also equipped with a pipe 9 for steam removal,. ’The regulator 10 of the water level in the feed tank 1, valves 11 and 12, as well as * О heat exchangers 13 and 14 installed respectively on the lifting 7 and lowering 6 pipelines. The heat exchangers 13 and 14 mentioned are connected to the feed line 15. By choosing * 5 heat exchangers with different heat exchange surface areas, it is possible to adjust the intensity of the natural 'circulation in the installation.

Котельная установка работает следую- 20 шим образом.The boiler unit operates as follows.

Питательный бак 1 через регулятор 10 уровня заполняют водой с удельным сопротивлением, обеспечивающем номинальную мощность установки. Котел 2 с 25 электродами 3 подключают к электрической сети при закрытых вентилях 11 иThe feed tank 1 through the level 10 controller is filled with water with a specific resistance that provides the rated power of the installation. Boiler 2 with 25 electrodes 3 is connected to the electrical network with closed valves 11 and

12. Открывая вентиль 12, в котел поддают воДу, которая, затопляя электроды 3, включает установку, в работу. Нагре- 30 тая вода через патрубки 5 и 8 подается по подъемному трубопроводу 7 в питательный бак 1, а холодная вода из бака 1 по опускному трубопроводу 6 поступает в котёл 2. Отбор пара производят ₃₅через патрубок 9 для отбора пара.12. Opening the valve 12, the water is supplied to the boiler, which, flooding the electrodes 3, turns on the installation, in operation. Heated water through nozzles 5 and 8 is supplied through the riser pipe 7 to the feed tank 1, and cold water from the tank 1 through the drain pipe 6 enters the boiler 2. Steam is taken ₃₅ through the nozzle 9 for steam extraction.

При закрытии вентиля 11, т.е. при отсутствии отбора пара, давление в паровом пространстве котла 2 повышается, часть, воды через патрубки 5 и 8 вытеоняется в питательный бак ‘1, а оставшаяся в котле вода занимает нижний расчетный уровень, определяемый положением нижних концов электродов 3. Циркуляция воды происходит по замкнутому контуру: ₄₅, патрубок 5 котла 1, подъемный трубо провод 7, питательный бак 1, опускной трубопровод 6, водоподводящий патрубокWhen closing valve 11, i.e. in the absence of steam extraction, the pressure in the steam space of the boiler 2 rises, part of the water flows through the nozzles 5 and 8 into the feed tank '1, and the water remaining in the boiler occupies the lower calculated level, determined by the position of the lower ends of the electrodes 3. Water circulation is closed circuit: ₄₅ , nozzle 5 of boiler 1, lift pipe wire 7, feed tank 1, bypass pipe 6, water supply nozzle

4. При этом пар, попадающий через дополнительный водоотводящий, патрубок 8 в подъемный трубопровод 7, уменьшает плотность теплоносителя в нем, интенсифицируя естественную циркуляцию в контуре.4. In this case, the steam entering through the additional drainage pipe 8 into the lifting pipe 7 reduces the density of the coolant in it, intensifying the natural circulation in the circuit.

Таким образом, применение дополнительного водоотводящего патрубка, расположенного выше нижних кондов электродов, позволяет интенсйфицировать естественную циркуляцию в котельной установке как при отборе пара, так и в отсутствии такового и тем самым повышает надежность работы путем снижения концентрации солей в котловой воде.Thus, the use of an additional drainage pipe located above the lower electrodes allows intensifying the natural circulation in the boiler plant both in the absence of steam and in the absence of it, and thereby increases the reliability by reducing the salt concentration in the boiler water.

Claims

The invention relates to a power system and can be used in the mouth; royepvah boiler installations, mainly for agriculture. A boiler installation known to have a steam boiler IJ - connected to the feed tank. A disadvantage of the known device is the low reliability of operation, due to the intensive deposits on the surfaces of the evacoton due to the absence of a closed air gap between the boiler and the feed tank. The closest to the invention according to the technical essence is a boiler on a set, containing a nutrient bic and an electrode steam boiler equipped with a sub- podpod below the electrodes, and in the zone between the latter and the electrodes - with a water diverter pat and lifting pipelines, respectively, LJj However, insufficient intensity of the closed circulation of water between the supply tank and the boiler reduces the reliability of the boiler operation due to the significant concentration lei in it. The aim of the invention is to increase the reliability of the boiler installation by intensifying the closed circulation of water between the feed tank and the boiler. This goal is achieved by the fact that the boiler is equipped with an additional drainage pipe located above. the lower ends of the boiler electrodes and connected to the lifting pipeline. The drawing shows the boiler room we offer installation. The installation contains a feed tank 1 and an electrode boiler 2, equipped with a water supply pipe 4 and a drain pipe 5 located below the electrodes 3, located between the ales: trodes 3 and a water pipe 4. Water supply and drain pipes PA and S 5 and 5 respectively the lifting pipes 6 and 7 for the keys to the supply tank 1. Above the lower ends of the electrodes 3 an additional drainage pipe 8 is installed, connected to the lifting pipe 7. The boiler plant also provides & ode vapor regulator 10 the water level in the nutrient tank 1, valve 11 and 12, and heat exchangers 13 and 14, respectively, on the lifting ustanovlenn1mi 7 and pipelines 6 standpipe. Said heat exchangers 13 and 14 are connected to a bridging line 15. It is possible to choose heat exchangers with different heat exchange surface area. adjust the intensity of the natural shfkul shga in the installation. The boiler plant operates as follows. The feed tank 1 is filled with resistive water through the level 10 regulator providing the rated power of the plant. The boiler 2 with the electrodes 3 is connected to the electrical network with the valves 11 and 12 closed. By opening the valve 12, water is supplied to the boiler, which, having flooded the electrodes 3, switches the device into operation. Water is fed through pipes 5 and 8 through lift pipe 7 into feed tank 1, and cold water from tank 1 through discharge pipe 6 enters boiler 2. Steam is produced through pipe 9 for steam extraction. When closing the valve 11, i.e. in the absence of steam extraction, the pressure in the steam space of the boiler 2 increases, part. WATER through pipes 5 and 8 comes out to feed tank 1, and the water left in the boiler occupies the lower design level determined by the position of the lower ends of electrodes 3. Water circulates in a closed loop: I pipe 5 of boiler 1, lifting pipe 04 7, feed tank 1, overflow pipe 6, water supply pipe 4, At the same time steam that enters through an additional drainage system. the pipe 8 to the lifting pipe 7 reduces the density of the heat carrier in it, intensifying the natural bifurcation in the circuit such and thus increases the reliability of operation by reducing the concentration of salts in the boiler water. Formula invented and Kotelny installation containing a feed tank. and an electrode boiler equipped with a water supply located below the electrodes, and in the zone between the latter and the electrodes with a drainage nozzle connected to said feeding tank by means of lowering and lifting pipes, respectively, characterized in that, in order to increase the workability, an additional drainage pipe located above the lower ends of the boiler electrodes and connected to the riser pipe-... Sources of information taken into account during the examination 1. Autonomous certificate USSR USSR No. 186049, cl. F22B 1/30, 1966.

2.Sestrichko B., Slushkin P., V., Rubtsov P. Electrode steam boiler of type EKP-1g- Technique in Agriculture, 1975, N ° 1, p. 39

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