SU937954A2

SU937954A2 - Shell-and-tube heat exchanger

Info

Publication number: SU937954A2
Application number: SU803215256A
Authority: SU
Inventors: Борис Владимирович Дзюбенко; Юргис Винцович Вилемас; Римантас Раполович Варшкявичюс; Генрих Александрович Дрейцер
Original assignee: Предприятие П/Я Г-4461; Институт Физико-Технических Проблем Энергетики Ан Литсср; Московский авиационный институт им.С.Орджоникидзе
Priority date: 1980-12-11
Filing date: 1980-12-11
Publication date: 1982-06-23

Description

(54) КОЖУХОТРУБНЫЙ ТЕПЛООБМЕННИК(54) SHELL-TUBE HEAT EXCHANGER

1one

Изобретение огноснтс к кожузсогрубным геплообменникам, тгреолазначенным дл использова ш , например, в химической промышленности.The invention is related to leather-to-heel exchangers designed for use, for example, in the chemical industry.

По основному авт. св. № 76 182О известен ко хотрубный теплообменник, содержащий В1штообрааио закрученные трубы фасонного профил , закрет1ленн1 1е мымл круглыми концами в трубных цосках, причем профиль труб выпоЛ11ен в вице ова-ю ла, имеющего ширину, равную диаметру пр мых КО1ЩОВ труб, а шаг их закрутки составл ет 12-15 максимального размера овйла. Трубы установлены оцна относительно другой с касанием по макси- is мальному размеру овала Cl.According to the main author. St. No. 76 182О is known for a hot-tube heat exchanger containing twisted tubular shaped profile tubes that have been molded with round ends in pipe sockets, and the profile of the tubes is made in the vice section, having a width equal to the diameter of the straight tubular pipes, and the twisting spacing is em 12-15 maximum size ovila. The pipes are installed relative to the other, with a maximum contact size of the oval Cl.

Недостатком этого теплообменника вл етс отсутствие достаточно равномерного пол продольной скорости при боксовом подводе и отводе средЫ межтрубного 20 пространства, что првтвоцит к сущоствонной н1Е равномерпости температурного пол в поперечном сечении пучка, а следовательно , к заметной относительной дефпр-The disadvantage of this heat exchanger is the lack of a sufficiently uniform longitudinal velocity field with boxed supply and removal of the annular medium 20 space, which means that the body is entangled to a nonsingular H1E equilibrium temperature field in the beam cross section and, consequently, to a noticeable relative deflection.

мадии труб при температургых уолинош х .Madia pipes with temperate volinos x.

Цель изобретени - допол п1тельна интенсификаци теплообмена в теплообменнике .The purpose of the invention is to additionally intensify heat exchange in a heat exchanger.

Поставле ша цель, достигаетс тем, что пучок выполнен закрученным относительно его продольной оси с уменьшан щимс по радиусу пучка относительным шагом закрутки, а пр мые концы труб имеют длину, равную диаметру входных и выходных патрубков с образованием в , кокухе коллекторов дл среды межтрубного пространства, имеющих пористость, большую пористости закрученной части пучка.The goal is achieved by the fact that the beam is twisted relative to its longitudinal axis with a relative twist pitch along the beam radius, and the straight ends of the pipes have a length equal to the diameter of the inlet and outlet nozzles with the formation of the annular space in the cocks, having a porosity greater than the porosity of the swirling part of the beam.

На фиг. 1 изображен теплообменник, ойций вид; на фиг, 2 - закрученна часгъ пучка труб, обший вид; на фиг. 3 - сечение А-А на фиг. 1; на фиг. 4 - незакрученна вита труба .FIG. 1 shows a heat exchanger, oyc view; FIG. 2 shows a twisted tube bundle, a general view; in fig. 3 is a section A-A in FIG. one; in fig. 4 - Untwisted Vit tube.

Claims

The heat exchanger contains a casing 1 with a twisted. Tube bundle 3 fixed in a pipe disc. 3. The bundle 3 consists 3 I from the broken Urub 4 oval | About the professional with large ends 5. The casing of the first floor is 6 for supplying and securing the sprues and the bottoms 7 with yygrubkami for the evacuation and removal of the environment of the tubular space. Beam 3 is filled with fire. sitelteno its longitudinal axis with a decrease in timings along the beam radius 3 t-bearing twist pitch Tfr e P - step for the twist of the pipes, g the radius of the pipe 4 from 71ositol1eno axis of the beam 3 6 and form tori for the annulus environment, having a porosity, a large porosity of the swirling part 3, the curling of these pipes 4 rel x; it is the axis of the beam 3 that leads to the distribution of the medium along the radius in the tube spaceresistance for a series of pipes located on the x-axis of the beam. The presence of a collector at the entrance to the quirky part of the beam with a higher porosity also results in itepepac limit of the medium due to the equalizing effect of the hydraulic resistance of the part of the tube bundle. Spin the worm of the pipes 4 relative to the beam axis 3 additionally 1sh the heat transfer heat in the peripheral areas of the beam, helping to clear 544 temperatures of the pipes in the cross section of the beam. The use of the proposed xygruction of hemoplastic allows to intensify heat exchange, to improve the accuracy of the temperature field in the transverse cross section of the beam and to reduce the relative deformation of the pipes at the temperature of the udpinev. Claims of invention. Shell-and-tube heat exchanger according to author. St. No. 76 182О, characterized in that, in order to intensify heat exchange, to increase the uniformity of the temperature field in the beam cross section and the mind, the relative deformation of the pipes at temperature lengthening is made closed relative to its longitudinal axis with decreasing twist pitch relative to the beam radius, and the straight ends of the tubes have a length equal to the diameter of the inlet and outlet nozzles with the formation in the tubing) e collector® for the annular space, having a porosity, a large porosity of the welded portion beam. Sources of Gshformisht, taken into account in examination 1, Copyright of the USSR 761820, cl. F 28G 7/00, 1977.