Heat exchanger and method of assembly

 

The invention is intended for use in heat exchangers, and can also be used in thermal power industry. The heat exchanger contains pipes for supplying and discharging the coolant, the system of coaxial shells that are offset relative to each other along the axis and put one another with the formation of annular channels for production environments, sealed-side end sections of the shell, each of the inner shells are made longer than the length of the adjacent outer shell and focused one of its end areas in the plane of the corresponding end of the outer shell and the other end section is derived outside of the outer shell, in addition, the end sections of adjacent shells ejected in opposite directions. The method of Assembly of the heat exchanger includes installation of shells one another with the formation of the annular gap and the seal on the end sections of the shells, and before the installation of each of the shells, at one of its end sections secured seal ring overlying the adjacent annular gaps on both sides of the said shell, and the process of installation shells are serial input inside the selection with the plane of the end face adjacent the outer shell, with each subsequent shell injected from the opposite side relative to the direction input of the previous shell. The invention allows to reduce the dimensions of the heat exchanger. 2 S. p. f-crystals, 1 Il.

The invention relates to heat exchange apparatus and can be used in thermal power industry.

A known heat exchanger with pipes for supplying and discharging the coolant containing the system of coaxial shells, put one another with the formation of annular channels for production environments, sealed-side end sections of the shells (1).

Shell rigidly connected to each other in pairs and the channels on one of the carriers merged to form a zigzag path.

According to the second coolant zigzag path is not organized and aggregation is not possible, which leads to an increase of the dimensions of the heat exchanger as a whole.

The disadvantage of this technical solution are significant dimensions of the heat exchanger and the complexity of its manufacture.

The closest technical solution is a heat exchanger with pipes for supplying and discharging the coolant, the content is the Finance annular channels for production environments, compacted side end sections of the shells (2).

In this technical solution, the shell is displaced along the axis relative to each other in one direction and zigzag paths arranged for both fluids. As a result of displacement of the shells in one side surface of the end sections of the shells removed from the heat transfer, which leads to an increase of the dimensions of the heat exchanger.

The disadvantage of this technical solution are significant dimensions of the heat exchanger.

The aim of the invention is to reduce the dimensions of the heat exchanger.

This goal is achieved by the fact that in the known heat exchanger with pipes for supplying and discharging the coolant containing the system of coaxial shells that are offset relative to each other along the axis and put one another with the formation of annular channels for production environments, sealed-side end sections of the shell, each of the inner shells are made longer than the length of the adjacent outer shell, focused one of its end areas in the plane of the corresponding end of the outer shell and removed the other end section beyond the outer shell, moreover, the end sections of adjacent shells displayed in PR is th with the formation of the annular gap and the seal on the end sections of the shells (2).

In this technical solution of the inner shell alternately injected into the external one side with subsequent axial preload system formed shells. Axial preload creates an additional load on the fastening ring seals and imposes constraints on the composition and source parameters of working environments, which reduces the reliability of the heat exchanger and manufacturability of its manufacture.

The aim of the invention is to increase the reliability of the heat exchanger and the technology of its manufacture.

This goal is achieved by the fact that in the known method of Assembly of the heat exchanger, which includes the installation of shells one another with the formation of the annular gap and the seal on the end sections of the shells, before the installation of each of the shells, at one of its end sections secured seal ring overlying the adjacent annular gaps on both sides of the said shell, and the process of installation shells are serial input internal shells free from sealing face areas up to the matching end-section seal with the end face plane adjacent the outer shell, and each subsequent shell by entering zobrazen described the heat exchanger.

The exchanger with the nozzle inlet 1 and outlet 2 of the fluids contains a system of coaxial shells 3 (see drawing 9 shells), offset relative to each other along the axis and put one another with the formation of the annular channels 4 and 5 for production environments.

The annular channels 4 and 5 in the General case can be provided with inserts of any known shape (spiral, rectangular and so on) with which each of the annular channels 4 and 5 is formed of a multi-way movement of fluid.

The annular channels 4 and 5 are sealed by end sections 6 and 7 of the shell 3 by means of ring seals. Each of the inner shell 3 is made longer than the length of the adjacent outer shell, focused one of its end sections 6 in the plane of the corresponding end of the outer shell and removed the other end section 7 beyond the outer shell, and the end sections of adjacent shells ejected in opposite directions. The end sections 7 of the inner shell 3 is equipped with an overflow pipe 8, indicating the respective annular channels with the formation of zigzag heat exchange circuits for both fluids.

The Assembly of the described heat exchanger oomestic install o-ring seal 9, overlying the inner gap 4, and the end sections 6 of each inner shell 3 install the o-ring seal 9, the overlapping of adjacent annular gap 4 and 5 on both sides of the said shell. In the General case, the annular gap 4 and 5 can have different widths corresponding to the width of the must have and seal ring 9. Then in the outer shell by the end of the plot without annular seal enter the inner sides of the end section 7 to match her end of section 6 with the annular seal 9 with the plane of the end section of the outer shell. Next, the installation process of the shells are similarly consistent introduction of inner shells free from the seal end parts 7 up to match the end of section 6 with a seal 9 with the plane of the end face adjacent the outer shell, and each subsequent inner shell injected from the opposite side relative to the direction input of the previous shell. Then on the end sections 7 of all shells fix the bypass pipe 8 and properly connect them with the formation of the zigzag path on both carriers.

When turning on the heat exchanger in the work, robotechnology purpose.

Thus, the proposed solution reduces the dimensions of the heat exchanger increases the manufacturability and reliability of his work.

Sources of information taken into account

1. Patent of Russia №2094725, IPC F 28 D 7/10, 1995

2. Patent of Russia №2036407, IPC F 28 D 7/10, 1992

Claims

1. The heat exchanger with pipes for supplying and discharging the coolant containing the system of coaxial shells that are offset relative to each other along the axis and put one another with the formation of annular channels for production environments, sealed-side end sections of the shells, wherein each of the inner shells are made longer than the length of the adjacent outer shell, focused one of its end areas in the plane of the corresponding end of the outer shell and removed the other end section beyond the outer shell, and the end sections of adjacent shells ejected in opposite directions.

2. The method of Assembly of the heat exchanger, which includes the installation of shells one another with the formation of the annular gap and the seal on the end sections of the shell, characterized in that before every installation is haunted gaps on both sides of the said shell, and the installation of the shells are serial input internal shells free from sealing face areas up to the matching end-section seal with the end face plane adjacent the outer shell, and each subsequent shell injected from the opposite side relative to the direction input of the previous shell.



 

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