SU1126804A2 - Spacing grate for heat exchanger pipes - Google Patents

Spacing grate for heat exchanger pipes Download PDF

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Publication number
SU1126804A2
SU1126804A2 SU833540756A SU3540756A SU1126804A2 SU 1126804 A2 SU1126804 A2 SU 1126804A2 SU 833540756 A SU833540756 A SU 833540756A SU 3540756 A SU3540756 A SU 3540756A SU 1126804 A2 SU1126804 A2 SU 1126804A2
Authority
SU
USSR - Soviet Union
Prior art keywords
heat exchanger
lattice
pipe
protrusions
pipes
Prior art date
Application number
SU833540756A
Other languages
Russian (ru)
Inventor
Лев Николаевич Артемов
Альберт Игоревич Пупышев
Леонид Аронович Абрамов
Original Assignee
Предприятие П/Я Р-6193
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я Р-6193 filed Critical Предприятие П/Я Р-6193
Priority to SU833540756A priority Critical patent/SU1126804A2/en
Application granted granted Critical
Publication of SU1126804A2 publication Critical patent/SU1126804A2/en

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Abstract

DISTAN1SHONIRU101TSAYA SECHETEM FOR PIPES OF HEAT EXCHANGER by author. St. No. 1002805, characterized in that, in order to increase reliability and rigidity, slats are installed between the protrusions of adjacent bushings. forming a lattice, in each cell of which there is a part of the sleeves, with the protrusions of the sleeves coming to the slats of the lattice cells, iwfe are dimensions, defined by the trace of pshdey dependency: pipe pitch in the bundle; J is the outer diameter of the pipe; S 8 slat thickness.

Description

The invention relates to structural elements of heat exchangers that can be used in any area of the industry, in particular in a superheater of electrical stations.
The known support partition for pipes of the heat exchanger, made in the form of a composite lattice with split clamping sleeves mounted on the pipe l | Each bushing is provided with protrusions located along its perimeter with a predetermined pitch and in contact with the outer walls of the pipes with the formation of a gap for the circulation of the coolant. Moreover, the sleeves are installed in direct contact with each other and pressed along the periphery of the beam with the pressure elements. having a segment shape.
The disadvantage of such a partition is the presence of a significant number of parts of complex shape and high accuracy for heat exchangers with large diameters of tube bundles. This impairs the manufacturability of the fabrication of the lattice and, accordingly, reduces the reliability of the design. In addition, due to the non-rigid connection of the partitioning elements with each other with large diameters of tube bundles of heat exchangers, it has insufficient hardness during vibrations in operation.
According to the main author. with „№ 1002805 known spacing distance for heat exchanger pipes, containing support sleeves rigidly connected to each other with the formation of cells for the passage of the medium. Moreover, each sleeve is made with protrusions in contact with the steps of adjacent bushings and depressions in contact with the pipes zj.
The disadvantage of such a lattice is the complexity of its manufacture with large diameters of tube bundles of heat exchangers and mechanization of technological processes. This reduces the reliability of the design. In addition, for large diameters of heat exchangers, the known lattice has insufficient rigidity due to the large number of thin-walled supporting elements.
268042
The purpose of the invention is to increase the reliability and rigidity of the structure.
This goal is achieved by the fact that in the spacer grid
5 for the heat exchanger pipes between the protrusions of the adjacent bushings there are bars that form a grid /, in each cell of which a part of the bush is located, with the tabs of the bushings,
The lattice cells adjacent to the strips have dimensions determined by the following relation;
y
15 d
where n is the distance from the outer surface of the protrusion to the outer surface of the corresponding pipe
5- tube pipe bundle;
6- outer diameter of the pipe; O - the thickness of the bar.
This makes it technologically easy to place part of the sleeves in the cells of the framework lattice to mechanize and automate the process of manufacturing the grid, increasing the reliability of the design.
Fig. 1 shows a distant grid, a general view; in fig. 2 - a lattice cell with one of the options for constructive insertion of the support hubs in the corridor arrangement of pipes in a bundle.,
The distance grid for the pipes 1 of the heat exchanger contains support sleeves 2; rigidly connected
one another with the formation of cells for the passage of the medium. Each support sleeve 2 is made with protrusions in contact with the protrusions of adjacent support sleeves, and depressions in contact with the pipes 1.
the rim 4; In each, the first cell of such a lattice there is a part (for example, 100) of the support sleeves 2, rigidly fastened together with each other and with the strips 3, for example, by welding. This increases the rigidity of the structure during vibrations.
In this case, the protrusions of the sleeves adjacent to the bars of the lattice cells have dimensions determined by the following relationship: 6-dB where h is the distance from the outer surface of the protrusion to the outer surface of the corresponding pipe; pipe pitch in the bundle; 112680 5 10 4 d - outer diameter of the pipe; o is the thickness of the plank. Such a construction makes it possible to obtain a rigid spacer grid for tube bundles containing a large number of heat exchange tubes. At the same time, the techno lattice is flexible in production, it is distinguished by its specific metal content and high reliability in operation.
Fyg.2

Claims (1)

  1. REMOTE GRILLE FOR HEAT EXCHANGER PIPES by ed. St. No. 1002805, characterized in that, in order to increase reliability and rigidity, between the protrusions of the adjacent bushings are installed strips forming a lattice, in each cell of which there is a part of the bushes, while the protrusions of the bushes adjacent to the strips of the lattice cells have the dimensions defined by the following dependency:
    , 5-d S where! Ι is the distance from the outer surface of the protrusion to the outer surface of the corresponding pipe;
    S is the pipe pitch in the beam; from! - outer diameter of the pipe;
    8 - thickness of the strap.
SU833540756A 1983-01-12 1983-01-12 Spacing grate for heat exchanger pipes SU1126804A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU833540756A SU1126804A2 (en) 1983-01-12 1983-01-12 Spacing grate for heat exchanger pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU833540756A SU1126804A2 (en) 1983-01-12 1983-01-12 Spacing grate for heat exchanger pipes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU1002805 Addition

Publications (1)

Publication Number Publication Date
SU1126804A2 true SU1126804A2 (en) 1984-11-30

Family

ID=21045669

Family Applications (1)

Application Number Title Priority Date Filing Date
SU833540756A SU1126804A2 (en) 1983-01-12 1983-01-12 Spacing grate for heat exchanger pipes

Country Status (1)

Country Link
SU (1) SU1126804A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697426A (en) * 1995-06-15 1997-12-16 Gec Alsthom Stein Industrie Rack for holding a set of tubes, in particular for forming a heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Авторское свидетельство СССР № 807030, кл. F 28 F 9/22, 1979. 2, Авторское свидетельство СССР №,100280. кл. F 28 F 9/22, 1980, *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697426A (en) * 1995-06-15 1997-12-16 Gec Alsthom Stein Industrie Rack for holding a set of tubes, in particular for forming a heat exchanger

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