SU966315A1

SU966315A1 - Turbomachine lateral output pipe

Info

Publication number: SU966315A1
Application number: SU803003362A
Authority: SU
Inventors: Леонид Александрович Василенко; Александр Васильевич Вертячих; Анатолий Александрович Евтушенко; Александр Иванович Швиндин; Сергей Никитович Шкарбуль
Priority date: 1980-08-14
Filing date: 1980-08-14
Publication date: 1982-10-15

Description

(S) БОКОВОЙ ПОДВОД ТУРБОМАШИНЫ(S) SIDE DOORS

.... .. .... ..

Изобретение относитс к турбомашиностроению и может быть использовано в боковых подводах турбомашинThe invention relates to a turbomachine and can be used in the lateral supply of turbomachines

Известен боковой подвод турбомаШИНЫ ,содержащий подвод щий радиальный канал, от вод щий осевой конфузор ,ограничениыС периферийной и втулочной поверхност ми , и расположенную между ними спиральную камеру с внутренней поверхностью, переход щей в размещенный в конфузоре и радиально направленный к его центру зык имеющий боковые стенки, лини пересечени которых образует выходную кромку, и . зык установлен таким образом, что оси симметрии всех его сечений лежат в одной радиальной плоскости, .проход щей через ось турбомашиныПД.The lateral supply of the turbomachine is known, containing a supplying radial channel, from the leading axial confuser, limited to the peripheral and stubby surfaces, and a spiral chamber located between them with an inner surface passing into the confuser located in the confuser and radially directed to its center. , the intersection of which forms the exit edge, and. The tongue is set in such a way that the axes of symmetry of all its sections lie in the same radial plane passing through the axis of the turbomachine.

Недостатком известной конструкции вл етс нарушение структуры потока вследствие непосто нства момента скорости потока вдоль радиуса в выходном сечении подвода: у втулочной поверхности отвод щего осевого конфузора момент скорости потока меньше, чем у периферийной поверхности.A disadvantage of the known construction is the disturbance of the flow structure due to the non-instability of the flow velocity moment along the radius in the output section of the inlet: at the sleeve surface of the diverting axial confuser, the flow velocity moment is less than that of the peripheral surface.

Цель изобретени - улучшение структуры потока.The purpose of the invention is to improve the flow structure.

Поставленна цель достигаетс тем, что точка пересечени выходной кромки зыка с втулочной поверхностью конфузора смещена oтнocиteльнo точки ее пересечени с периферийной поверхностьюпоследнего по направ10 лению движени потока, а боковые стенки з ка выполнены в виде винтовых поверхностейThe goal is achieved by the fact that the point of intersection of the output edge of the tongue with the stub surface of the confuser is shifted relative to the point of its intersection with the peripheral surface of the last one in the direction of flow, and the side walls are made in the form of helical surfaces

На фиг. 1 изображен боковой под-, вод турбомашины, продольный разрез; FIG. 1 shows a side under-, water turbomachine, longitudinal section;

IS на фиг. 2 - вид в плане; на фиг. 3разрез А-А на фиг. 1.IS in FIG. 2 is a plan view; in fig. 3A-A in FIG. one.

Claims

The lateral supply of the turbomachine contains a supply radial channel 1, a diverting axial confuser 2, limited by peripheral and stubby surfaces 3 and t, and a spiral chamber 5 located between them with an inner surface 6, transition 3; 9 dashed into a tongue 7 placed in confuser 2 and radially wound to its center, having side walls 8 and 9 of the intersection line of which forms the output edge 10, n (4 and this the point of intersection of the output edge 10 with the insertion surface k of the confuser 2 relative to the point of its intersection with the peripheral surface 3 of the latter in the direction of flow by an amount of /, and the lateral cteHKH 8 and 9 languages 7 are made in the form of helical surfaces .. The device works as follows .. floTok is fed through the inlet radial channel 1 The chamber 5 and further into the outlet axial confuser 2, while maintaining the condition of constant momentum of the flow velocity on any radius of the output section of the outlet axial confusor 2, which is achieved by shifting the "L" point of intersection of the output edge 10 with the sleeve-surface 4 of the diffuser 2 relatively to4KH its intersection - with the peripheral surface 3 of the latter, and at the same time the flow velocity at the sleeve surface k of the confuser 2 increases to the magnitude of the flow velocity moment at the peripheral surface 3. due to what happened dit vyrovniva5 of time the velocity along the radius in axial section 1vyhodnom koifuzora 2 and improved flow pattern at the exit of the inlet. Claims of the Invention A lateral intake of a turbomachine, comprising a diverting axial confuser, which connects a radial channel, limited to the peripheral and stubby surfaces, and a spiral chamber located between them and the inner surface passing to the radially directed to its center. walls, the line of intersection of which forms the output edge, O m; i and I with the fact that, with an improvement in the flow structure, the point of intersection of the output edge of the tongue with the stub surface of the confuser d eschena relative to the point of its intersection with the peripheral surface of the latter in the direction of: traffic flow, and the side walls are Zak, in the form of helical surfaces. Information sources. taken into account during the examination 1. Lomakin A. A. Centrifugal and axial pumps. M.-L., Mashinostroenie., 1966t with. 128. fig. 73.