SU932189A1

SU932189A1 - Regenerative gas heater

Info

Publication number: SU932189A1
Application number: SU782705870A
Authority: SU
Inventors: Фрид Рувимович Шкляр; Владислав Георгиевич Карелин; Маргарита Ивановна Агафонова; Виктор Александрович Чистополов; Юрий Алексеевич Емельянов
Original assignee: Всесоюзный научно-исследовательский институт металлургической теплотехники
Priority date: 1978-10-18
Filing date: 1978-10-18
Publication date: 1982-05-30

Description

Изобретение относится к теплоэнергетике, а именно к регенеративным подогревателям газов с промежуточным теплоносителем.The invention relates to a power system, and in particular to regenerative gas heaters with an intermediate coolant.

Известен регенеративный подогреватель газов, содержащий размещенный ⁵в корпусе между опорными плитами промежуточный теплоноситель, патрубки для чередующегося подвода и отвода газовых теплоносителей [1].Known regenerative gas heater containing ⁵ located in the housing between the base plates of the intermediate fluid, pipes for alternating inlet and outlet of gas fluids [1].

Недостатками такого подогревателя являются невысокая эффективность теплообмена из-за усадки промежуточного теплоносителя и подачи газообразных теплоносителей через одни и те же ₁₅патрубки, реализующей сопутное чередующееся перемещение теплоносителей, а также значительная неравномерность распределения газовых теплоносителей в циклах теплообмена, при- _мводящая к неравномерности теплового потока.The disadvantages of such a heater is low efficiency of heat exchange due to shrinkage of the intermediate heat transfer medium and the supply of gaseous coolant through the same nozzles _15, realizes alternating movement soputnoe coolants, and also considerable uneven distribution of heat transfer gas in the heat exchange cycles, pri- _m leading to uneven heat flux .

Известен также регенеративный подогреватель газов, содержащий цилинд2 рический корпус с установленными в нем двумя соосными внутренней и наружной перфорированными трубами, размещенный между трубами промежуточный теплоноситель, подводящие и отводящие патрубки [2].Also known is a regenerative gas heater containing a cylindrical body with two coaxial internal and external perforated pipes installed in it, an intermediate heat carrier between the pipes, inlet and outlet pipes [2].

Основным недостатком известного подогревателя является отсутствие равномерного распределения теплообменивающихся газовых теплоносителей, что снижает эффективность работы подогревателя.The main disadvantage of the known heater is the lack of a uniform distribution of heat-exchanging gas coolants, which reduces the efficiency of the heater.

Цель изобретения - обеспечение равномерного распределения теплообменивающйхся газовых теплоносителей.The purpose of the invention is to ensure uniform distribution of heat-exchanging gas coolants.

Указанная цель достигается тем, что подогреватель газов, содержащий цилиндрический корпус с установленными в нем двумя соосными внутренней й наружной перфорированными трубами, размещенный между трубами промежуточный теплоноситель, подводящие и отводящие патрубки, снабжен радиальными газонепроницаемыми перегородкаThis goal is achieved by the fact that the gas heater, comprising a cylindrical body with two coaxial inner and outer perforated pipes installed in it, an intermediate heat carrier between the pipes, inlet and outlet pipes, is provided with radial gas-tight partition

932189 4 ми, установленными между внутренней трубой и корпусом с образованием секций, при этом каждая секция снабжена патрубками для отвода охлаждаемого и подвода подогреваемого газ'а, а на ₅последних установлены регулируемые запорные органы.932189 4 installed between the inner pipe and the housing with the formation of sections, each section is equipped with nozzles for the removal of the cooled and the supply of heated gas'a, and the last _{5 are} installed adjustable locking bodies.

На фиг. 1 схематично изображен !, подогреватель, общий вид, разрез;на фиг. 2 - то же, поперечное сечение. ю Регенеративный подогреватель содержит цилиндрический корпус 1,. футерованный слоем 2 огнеупорного кирпича. В корпусе 1 установлены две перфорированные трубы 3 и 4 (соотвётст<5 венно внутренняя и наружная) .Между трубами 3 и 4 размещен промежуточный теплоноситель 5 из мелкокускового огнеупорного материала. Между внутренней трубой 3 и корпусом 1 установлены ра- _мдиальные газонепроницаемые перегородки 6,разделяющие корпус 1 на секции. Между наружной трубой 4 и корпусом 1 размещены газовые камеры 7. Каждая секция, размещенная между соседними ₂5 перегородками 6, снабжена патрубком 8 для подвода подогреваемого газа и патрубком 9 для отвода охлаждаемого газа. Охлаждаемый газ подводится в трубу 3 снизу, а подогреваемый выво- ₃₀дится через трубу 3 сверху. .In FIG. 1 schematically shows!, A heater, a general view, a section; in FIG. 2 - the same, cross section. The regenerative heater contains a cylindrical housing 1 ,. lined with a layer of 2 refractory bricks. Two perforated pipes 3 and 4 are installed in the housing 1. (respectively, internal and external <5). Between pipes 3 and 4, an intermediate heat carrier 5 of fine-grained refractory material is placed. Between the inner tube 3 and the housing 1 are installed PA- _m dially gastight partition 6 dividing the housing 1 in section. Between the outer pipe 4 and the housing 1 there are gas chambers 7. Each section, located between adjacent ₂ 5 partitions 6, is equipped with a pipe 8 for supplying a heated gas and a pipe 9 for draining the cooled gas. Cooled gas is fed into the pipe 3 from below, and heated conclusions ditsya ₃₀ through the tube 3 from above. .

На патрубках 8 и 9 установлены per гулируемые запорные органы 10 и 11 соответственно.On the nozzles 8 and 9 are installed per gated locking elements 10 and 11, respectively.

Регенеративный подогреватель газов работает следующим образом.Regenerative gas heater operates as follows.

Охлаждаемый (горячий), газ подводится к подогревателю снизу через внутреннюю перфорированную трубу 3С помощью радиальных перегородок 6 газ распределяется по секциям, проходит через промежуточный теплоноситель 5 и с помощью патрубков 9 отродится из подогревателя. После нагрева промежутрчного теплоносителя 5 пре¹кращают подачу газа, закрывают запор- ^<Sные органы 11..Подогреваемый газ подается в подогреватель через патрубки 8, проходит в пределах каждой секции через перфорацию труб 4 и 3 и затем направляется потребителю вверх ⁵⁰ по трубе 3. После.охлаждения промежуточного теплоносителя 5 подачу подогреваемого газа прекращают, закрывают запорные органы 10 и производят подачу охлаждаемого газа.Cooled (hot) gas is supplied to the heater from below through an internal perforated pipe 3 With the help of radial partitions 6, the gas is distributed in sections, passes through an intermediate coolant 5, and, using pipes 9, is discharged from the heater. After heating the intermittent heat carrier 5, pre ¹ cut off the gas supply, close the shut-off elements ^<S. 11..Heated gas is supplied to the heater through pipes 8, passes through the perforation of pipes 4 and 3 within each section and then goes up ⁵⁰ to the consumer through pipe 3 After cooling of the intermediate heat carrier 5, the supply of the heated gas is stopped, the shut-off elements 10 are closed and the cooled gas is supplied.

Снабжение предлагаемого подогревателя радиальными газонепроницаемыми перегородками, установленными между внутренней трубой и корпусом с образованием секций, снабжение секций патрубками для отвода охлаждаемого и подвода подогреваемого газа и установка на последних регулируемых запорных органов позволяют секционировать теплообменную насадку, организовать в пределах каждой секции регулированную подачу и отвод газов и обеспечить, таким образом, равномерное распределение теплообменивающихся газовых теплоносителей через промежуточный теплоноситель.The supply of the proposed heater with radial gas-tight partitions installed between the inner pipe and the casing with the formation of sections, the supply of sections with pipes for the outlet of the cooled and the supply of the heated gas, and the installation on the last adjustable shut-off bodies allow the heat exchanger nozzle to be partitioned, the regulated supply and removal of gases within each section and ensure, therefore, a uniform distribution of heat-exchanging gas fluids through the intermediate the first coolant.

Claims

The invention relates to a power system, namely to re; Generative gas preheaters with an intermediate coolant. A regenerative gas preheater is known, which includes an intermediate heat carrier placed between the support plates, pipes for alternate supply and removal of gas heat transfer fluids 11. The disadvantages of this heater are low heat exchange efficiency due to shrinkage of the intermediate heat transfer fluid and the flow of gas heat transfer fluids through the same heat exchangers and supply of gas heat transfer fluids through the same heat exchangers. co-alternating movement of coolants, as well as significant uneven distribution of gas heat carriers in the cycle heat transfer, resulting in uneven heat flow. A regenerative gas preheater is also known, which contains a cylindrical body with two coaxial internal and external perforated pipes installed in it, an intermediate heat carrier, supply and discharge connections 2 located between the pipes. The main disadvantage of the known preheater is the lack of uniform distribution of heat exchanging gas heat carriers, which reduces the efficiency of the heater. The purpose of the invention is to ensure uniform distribution of heat exchange gas heat transfer fluids. This goal is achieved by the HTO gas heater containing a cylindrical body with two coaxial internal and external perforated pipes installed in it, an intermediate heat carrier between the pipes, supply and discharge pipes fitted with radial gas-tight partitions installed between the internal pipe and the body to form sections, while each section is equipped with nozzles for draining the cooled and supplying heated gas, and the latter are equipped with adjustable porous organs. FIG. 1 shows a schematic representation of a heater, general view, section; FIG. 2 is the same cross section. Regenerative heater contains a cylindrical body 1 ,. lined with layer 2 refractory core, pica. In case 1, two perforated pipes 3 and (respectively, internal and external) are installed. Between pipes 3 and an intermediate heat carrier 5 of small refractory material is placed. Radial gas-tight partitions 6 are installed between the inner tube 3 and the housing 1, dividing the housing 1 into sections. Gas chambers 7 are placed between the outer tube t and the housing 1. Each section located between adjacent partitions 6 is provided with a pipe 8 for supplying a heated gas and a pipe 9 for draining the cooled gas. The cooled gas is supplied to the pipe 3 from the bottom, and the heated gas is output through the pipe 3 from the top. The nozzles 8 and 9 are equipped with per-guided locking bodies 10 and 11, respectively. Regenerative gas heater works as follows. The cooled (hot) gas is supplied to the heater from below through the internal perforated pipe 3. By means of radial partitions 6, the gas is distributed through the sections, passes through the intermediate heat carrier 5 and by means of nozzles 9 is generated from the heater. After heating the intermediate heat carrier 5, the gas supply is stopped, the shut-off parts 11 are closed. The heated gas is supplied to the preheater through nozzles 8, passes through each section through the perforations of pipes 4 and 3 and then is directed to the consumer up the pipe 3. After the intermediate the heat carrier 5, the supply of heated gas is stopped, the shut-off bodies 10 are closed and the supply of cooled gas is performed. The supply of the proposed heater with radial gas-tight partitions installed between the inner tube and the body with the formation of sections, the supply of sections with pipes for draining the cooled and supplying heated gas and installing on the last regulated shut-off members allow the heat exchange nozzle to be partitioned, to organize regulated supply and removal of gases within each section and thus ensure uniform distribution of heat exchanging heat-exchange gas through exact heat carrier. Claims of the invention A regenerative gas preheater comprising a cylindrical body with two coaxially inner and outer perforated pipes installed therein, an intermediate heat carrier placed between the pipes, supply and exhaust pipes, so that .the uniform distribution of heat exchanging gas coolants, the heater is provided with radial gas-tight partitions installed between the inner tube and the housing with the formation of sections, that each section is provided with nozzles for discharging cooled and supplying the heated gas, and at last installed adjustable shut-off devices. Sources of information taken into account in the examination. 1. USSR author's certificate No. 6 10109, cl. F 28 D 17/00, 1977.

2. US patent number ZZZ + OO, cl. 29-157.3, pub. 1967.