A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hood
The invention provides a hood. The hood comprises a smoke exhaust pipe, a first sleeve and a second sleeve, wherein the smoke exhaust pipe is vertically arranged, the first sleeve is arranged at the top end of the smoke exhaust pipe in a sleeving mode and fixedly connected with the smoke exhaust pipe, the outline and an inner cavity of the first sleeve are each in the shape of a frustum with the axis coinciding with the axis of the smoke exhaust pipe and gradually shrinking upwards, the second sleeve is arranged at the top end of the first sleeve in a sleeving mode and fixedly connected with the first sleeve, a circulation channel with the annular section is formed between the outer wall of the first sleeve and the inner wall of the second sleeve, and the outline and the inner cavity of the first sleeve are in the shape of a frustum with the axis coinciding with the axis of the smoke exhaust pipe and gradually shrinking upwards. The hood has the advantages that the flow speed of flue gas in the exhaust duct can be increased, the exhaust effect of the flue gas is improved, and the phenomenon of gas blow-by among all layers is prevented.
本发明提供一种风帽，包括排烟管、第一套筒和第二套筒；排烟管竖直设置，第一套筒套设在排烟管的顶端并与排烟管固定连接，第一套筒的外廓和内腔形状均为轴线与排烟管轴线重合、并且朝上渐缩的锥台形，第二套筒套设在第一套筒的顶端并与第一套筒固定连接，以使第一套筒的外壁和第二套筒的内壁之间形成截面为环形的流通通道，第一套筒的外廓和内腔形状均为轴线与排烟管轴线重合、并且朝上渐缩的锥台形。本发明具有能够加快排气道内烟气的流速，提高烟气的排放效果，防止各层之间相互窜气的现象发生的优点。
Hood
The invention provides a hood. The hood comprises a smoke exhaust pipe, a first sleeve and a second sleeve, wherein the smoke exhaust pipe is vertically arranged, the first sleeve is arranged at the top end of the smoke exhaust pipe in a sleeving mode and fixedly connected with the smoke exhaust pipe, the outline and an inner cavity of the first sleeve are each in the shape of a frustum with the axis coinciding with the axis of the smoke exhaust pipe and gradually shrinking upwards, the second sleeve is arranged at the top end of the first sleeve in a sleeving mode and fixedly connected with the first sleeve, a circulation channel with the annular section is formed between the outer wall of the first sleeve and the inner wall of the second sleeve, and the outline and the inner cavity of the first sleeve are in the shape of a frustum with the axis coinciding with the axis of the smoke exhaust pipe and gradually shrinking upwards. The hood has the advantages that the flow speed of flue gas in the exhaust duct can be increased, the exhaust effect of the flue gas is improved, and the phenomenon of gas blow-by among all layers is prevented.
本发明提供一种风帽，包括排烟管、第一套筒和第二套筒；排烟管竖直设置，第一套筒套设在排烟管的顶端并与排烟管固定连接，第一套筒的外廓和内腔形状均为轴线与排烟管轴线重合、并且朝上渐缩的锥台形，第二套筒套设在第一套筒的顶端并与第一套筒固定连接，以使第一套筒的外壁和第二套筒的内壁之间形成截面为环形的流通通道，第一套筒的外廓和内腔形状均为轴线与排烟管轴线重合、并且朝上渐缩的锥台形。本发明具有能够加快排气道内烟气的流速，提高烟气的排放效果，防止各层之间相互窜气的现象发生的优点。
Hood
一种风帽
QIN YANGANG (author) / ZHAO GUANGHUI (author)
2021-07-20
Patent
Electronic Resource
Chinese
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden