SU1621669A1 - Heat exchanger - Google Patents

Abstract

The invention allows to increase the operational reliability and reduce the metal intensity of the heat exchanger. In case 1 along the axis are placed distributing 2 and co (5 | flash 1. nn 3 collectors and a peripheral bundle of zigzag tubular screens 4 connected to them with turning sections 5 and 6, respectively, on the side of housing 1 and collectors 2, 3. On turning sections 5 distant elements of elements 7 are installed. Reflectors mounted at the periphery of the beam are fastened with remote control arms mn 7 with one in k x stanosyunnye screen with contact with adjacent screen 4, 1 cf.p.-5y.

Description

 The invention relates to heat exchangers and can be used in the power industry of nuclear power plants.

The aim of the invention is to increase the operational reliability and reduce metal consumption.

FIG. 1 shows the proposed heat exchanger, general view; FIG. 2 is a section A-A in FIG. 1; in fig. 3 shows the node I in FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 - heat exchanger, embodiment.

The heat exchanger includes a housing with distributors 2 placed inside the axis and distributing 3 collectors with them and a zigzag tubular screen 4 connected to them with a peripheral bundle 4 with turning sections 5 and 6, respectively, from the side of housing 1 and collectors 2, 3. On turning sections

5 on the side of the housing 1 installed. distant elements 7. The reflectors 8 are mounted between adjacent cw 4 ws on the periphery of the beam, fastened to the cn elements 7 of one it screen and located in contact with the adjacent screen 4. The casing 1 is provided with connecting pipes 9 and discharging 10 for the annular space, and the collector v tori 2,3 - pipelines for the supply of 11 and outlet 12 of the coolant of the tube space. Collectors 2, 3 are separated from each other by a partition .14. Screens 4 can be made U-shaped with one rotary section.

The heat exchanger operates as follows.

The heat carrier of the tube space passes through the pipe

OS

ten

wire 11, collector 2S pipes 4 screens, collector 3 and pipe 12. In screens A, this coolant is cooled. Heating the annular heat carrier washing the pipes of the screens A from the outside. Reflectors 8 reject part of the coolant flow from the periphery of the heat meter beam to the collectors 2, 3. This aligns the velocity diagram along the cross section of Case 1 and reduces the heat sink rate along the periphery of the latter, which eliminates heat carrier leakage through the heat exchange beam without heat exchange, reduces the amount of heat exchange required surface And, respectively, the metal heat exchanger. The reflectors 8 at the same time intensify the heat exchange, the turbulier flow, which also contributes to reducing the area of the heat meter surface and the metal intensity of the heat exchanger. The reduction of the coolant velocity in the peripheral part of the beam favorably affects the vibration of the heat exchanger, which is also reduced due to the attachment of the reflectors 8 to the mounting elements 7 of the turning parts 15

20

0

five

0

5 screens 4, which increases the rigidity of the latter. Installing reflectors 8 in contact with adjacent screens 4 increases the rigidity of the entire beam and also contributes to reducing the heat exchanger vibration.

Claims (2)

Invention Formula t. A heat exchanger comprising a housing with dispensing and collecting headers disposed inside the axis and a peripheral bundle of tubular screens connected to them, having pivotal sections, with spacer elements installed on the latter from the side of the body, characterized in that metal, between the adjacent screens on the periphery of the beam are installed reflectors, mounted on the spacer elements of one of the screens. 2. A heat exchanger according to claim 1, characterized in that each reflector is in contact with an adjacent heat sink. Fi.1 about S I V / 45 Che she is 53 at w FIG. five