SU1270527A1

SU1270527A1 - Heat-exchanging member

Info

Publication number: SU1270527A1
Application number: SU853905179A
Authority: SU
Inventors: Валентин Иосифович Сайко; Владимир Илларионович Савченков
Original assignee: Белорусский институт механизации сельского хозяйства
Priority date: 1985-06-04
Filing date: 1985-06-04
Publication date: 1986-11-15

Description

Изобретение относится к теплотехнике и может быть использовано в системах жидкостного охлаждения двигателей в качестве охладителя масла.The invention relates to heat engineering and can be used in liquid engine cooling systems as an oil cooler.

Цель изобретения - интенсифика- 5 ция теплообмена.The purpose of the invention is the intensification of heat transfer.

На фиг. 1 изображен участок теплообменного элемента! на фиг. 2 сечение А-А на фиг. 1.In FIG. 1 shows a portion of a heat exchange element! in FIG. 2, section AA in FIG. 1.

. Теплообменный элемент содержит Ю наружную 1 и внутреннюю 2 трубы.. The heat exchange element contains Yu outer 1 and inner 2 pipes.

Трубы состоят из чередующихся прямыхPipes consist of alternating straight lines

3, 4 и выпуклых 5, 6 участков. В. кольцевом зазоре 7 на прямых участках 3, 4 труб размещены ряды прово- 15 лочных спиралей 8, имеющих в смежных рядах противоположное направление навивки. Диаметр провблок кратен величине кольцевого зазора 7» В кольцевом зазоре 9 между выпуклыми участками труб, размещены поперечные ребра 10 в виде спирально закрученной проволоки.3, 4 and convex 5, 6 sections. In the annular gap 7, in straight sections 3, 4 of the pipes, rows of wire 15 spirals 8 are arranged having opposite directions of winding in adjacent rows. The diameter of the wire block is a multiple of the size of the annular gap 7 ". In the annular gap 9 between the convex sections of the pipes, transverse ribs 10 are arranged in the form of a spiral-wound wire.

Одна из сред, например масло, поступает в кольцевой зазор 7 между пря- 25 мыми участками 3 и 4 труб, где турбулизируется за счет установленных в нем проволочных спиралей 8, Попа* дая в кольцевой зазор 9 масло турбулизируется поперечными ребрами 10.One of the media, for example, oil, enters the annular gap 7 between the straight sections of pipes 3 and 4, where it is turbulized by means of the wire spirals 8 installed in it. When it gets into the annular gap 9, the oil is turbulized by transverse ribs 10.

Вторая среда, например вода, движется во внутренней трубе 2, частично турбулизируясь на выпуклых участках 5.The second medium, for example water, moves in the inner pipe 2, partially turbulizing in the convex sections 5.

Claims

The invention relates to heat engineering and can be used in liquid cooling systems of engines as an oil cooler. The purpose of the invention is to intensify heat transfer. FIG. 1 shows a portion of the heat exchange element 1 in FIG. 2 section A-A in FIG. one. . The heat exchange element contains an outer 1 and inner 2 pipes. The pipes consist of alternating lines 3, 4 and convex 5, 6 sections. In the annular gap 7, on the straight sections 3, 4 of the tubes, there are rows of wire spirals 8, having the opposite direction of winding in adjacent i / JAax. The diameter of the wires is a multiple of the size of the annular gap 7. In the annular gap 9 between the convex hours of the pipes, transverse ribs 10 are arranged in the form of a spiral wire. One of the media, such as oil, flows into the annular gap 7 between straight sections 3 and 4 of the tubes, where it is turbulent due to the propelled spirals 8 installed in it. When the oil enters the annular gap 9, the oil is lysed with transverse ribs 10. 27L Second medium, such as water moves in the inner tube 2, partially turbulized on the convex portions 5, of the invention 1. A heat exchanger element of the tube type in a tube with an annular gap between the tubes, internally of which consists of alternating straight and convex portions, characterized in that heat transfer intensification, the outer tube has a shape that repeats the shape of the inner tube.

2. An element according to claim 1, characterized in that in the annular gap between the straight pipe sections there are rows of wire spirals having opposite winding directions in adjacent rows, and the diameter of the wires is a multiple of the annular gap.

3. An element in PP, 1 and 2, which is based on the fact that in the annular gap between the convex sections of the pipes there are transverse ribs in the form of a spiral wire.