SU717517A1

SU717517A1 - Plate heat exchanger packet

Info

Publication number: SU717517A1
Application number: SU772449564A
Authority: SU
Inventors: Лев Ефимович Резников
Original assignee: Научно-Исследовательский Институт Технологии Криогенного Машиностроения
Priority date: 1977-02-07
Filing date: 1977-02-07
Publication date: 1980-02-25

Description

Изобретение относится к пластинчатым теплообменникам и может быть использовано при технике низких температур. §The invention relates to plate heat exchangers and can be used in the technique of low temperatures. §

Известны пакеты пластинчатых,теплообменников, содержащие перфорированные пластины, чередующиеся с разделительными прокладками с образованием каналов для рабочей среды [1].Known packages of plate, heat exchangers containing perforated plates, alternating with spacer gaskets with the formation of channels for the working environment [1].

Недостатком их является большое гидравлическое сопротивление и невысокая интенсивность теплообмена.Their disadvantage is high hydraulic resistance and low heat transfer intensity.

Цель изобретения - интенсификация теплообмена.The purpose of the invention is the intensification of heat transfer.

Это достигается тем, что в предложенном теплообменнике пакет по высоте разделен на секции посредством перфорированных плит, перфорации в которых выполнены с шагом, вдвое большим шага перфораций пластин, при-20 чем перфорации плит в каждой секции совпадают с перфорациями пластин и не совпадают между собой.This is achieved by the fact that in the proposed heat exchanger the package is divided into sections by height of perforated plates, the perforations in which are performed in increments of twice the pitch of the plate perforations, moreover, the plate perforations in each section coincide with the plate perforations and do not coincide.

На чертеже изображен предложенный __ поперечный разрез. ·The drawing shows the proposed __ cross section. ·

Пакет содержит перфорированные пластины 1, чередующиеся с разделительными прокладками 2 с образованием каналов для рабочей среды. Пакет по высоте разделен на секции 3 посред- 30 ством перфорированных плит 4, перфорации в которых выполнены с шагом, вдвое большим шага перфораций пластин, причем перфорации плит 4 в каждой секции 3 совпадают с перфорациями пластин 1 й не'совпадают между собою.The package contains perforated plates 1, alternating with dividing gaskets 2 with the formation of channels for the working environment. The height package is divided into sections 3 by means of perforated plates 4, the perforations in which are performed in steps twice as large as the perforations of the plates, and the perforations of the plates 4 in each section 3 coincide with the perforations of the plates of the 1st one.

Пакет работает следующим образом.The package works as follows.

Через перфорации первой плиты 4 среда попадает в каналы первой секции 3, образованные пластинами 1 и прокладками 2, прерывается непропер•форированными местами следующей плиты 4, затем поступает в перфорации этой плиты, и весь процесс повторяется в следующей секции 3.Through perforations of the first plate 4, the medium enters the channels of the first section 3, formed by plates 1 and gaskets 2, is interrupted by the unperforated places of the next plate 4, then it enters into the perforations of this plate, and the whole process is repeated in the next section 3.

Изобретение позволяет повысить Интенсивность Теплообмена при снижении гидравлического сопротивления, что повышает компактность пакета и эффективность его в работе.EFFECT: invention allows to increase Heat Transfer Intensity while reducing hydraulic resistance, which increases the compactness of the package and its efficiency in operation.

Claims

The invention relates to plate heat exchangers and can be used in the low temperature technique. Known packages of plate .jrero exchangers containing perforated plates alternating with pp1 separation gaskets to form channels for the working medium 1. Their disadvantage is high hydraulic resistance and low intensity of heat exchange . The purpose of the invention is to intensify heat transfer. This is achieved by the fact that in the proposed heat exchanger the package is divided into sections by means of perforated plates, the perforations in which are made with a step twice as large as the perforations of the plates, and the perforations of the plates in each section coincide with the perforations of the plates and do not coincide with each other. The drawing shows the proposed cross-section. The package contains perforated plates 1 alternating with separating spacers 2 with the formation of channels for the working medium. The height of the package is divided into sections 3 by means of perforated plates 4, perforations in which are made with a step twice as long as the perforations of the plates, and the perforations and 4 in each section 3 coincide with the perforations of the plates -1 and not the jets from each other. The package works as follows. Through the perforations of the first Hzgita 4, the medium enters the channels of the first section 3, formed by the plates 1 and the gaskets 2, is interrupted by the non-perforated places of the next plate 4, then enters the perforations of this plate, and the whole process is repeated in the next section 3. The invention allows for an increase in the heat exchange rate while reducing the hydraulic resistance, 1TO increases the compactness of the package and its efficiency in operation. Claims of the Invention A plate heat exchanger package containing perforated plates alternating with spacers to form channels for the working medium, characterized in that, for the purpose of intensification. heat exchange, the package height is divided into sections by means of perforated plates, perforations in which

:: Shpl1 Yo шагомn step, doubled, and perforations of plates, and the perforations of the plates in each section coincide

with perforations of plates and do not coincide with each other.

Information sources, . accepted during examination

1, US Patent 3534813, cl. 165-164, 1970.