# Distributing chamber

FIELD: machine building.

SUBSTANCE: distributing chamber (5) is externally limited by a casing (3), a bottom (2) and a grid (6) and provides for the interconnection of a central supply pipe (8) and a lateral outlet channel (1) via a gap between the bottom (2) and the end face part of the central supply pipe (8). The lateral outlet channel (1) is formed by the casing (3) and the central supply pipe (8). The grid (6) is installed in the lateral outlet channel (1) and its porosity factor falls in the range from 0.3 to 0.8. Ratios of the distributing chamber (5) dimensions correspond to the conditions considering the interrelations of the height of the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the inlet to the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the distributing chamber (5), height of the inlet to it and the inner diameter of the central supply pipe (8); height of the distributing chamber (5) and height of the inlet to it, radius of the lower casing (3) part, outer radius of the central supply pipe (8); distance from the bottom (2) to the step (7) on the casing (3) respectively with the height of the distributing chamber (5), and with the radius of the lower casing (3) part and height of the inlet to the distributing chamber (5); radius of the lower casing (3), inner diameter of the central supply pipe (8) and height of the inlet to the distributing chamber (5). Dimensions of the flow passage of the distributing chamber (5) are related with its hydrodynamic characteristics by a ratio considering the mass flow of working medium through the grid (4) hole, average mass flow of working medium through the grid, total pressure loss at the grid (4), density of working medium, average velocity of working medium in the central supply pipe (8), area of the cross-section of the working medium jet falling on the grid (4), radius of the upper casing (3) part, outer radius of the central supply pipe (8), reference radius of the grid (6) and three empirical coefficients.

EFFECT: expanded functionality at forming hydrodynamic irregularity at the distributing chamber outlet and simplified design.

5 cl, 1 dwg

The invention relates to a distributing manifold systems and can be used in the intermediate heat exchangers.

Known for distributing chamber, comprising a housing and a bottom, a Central inlet pipe, a step on the housing, the tube Board and throttling the grill before it is installed in the annular channel formed by the inlet pipe and the casing [Mitenkov F. M., Golovko, V.F., Ushakov P.A. and other Design heat exchangers NPP. Under the General editorship of F. M. Mitenkov. - M.: Energoatomizdat, 1988. - P.55-58].

A disadvantage of the known device is that its running parts use additional structural element throttling lattice, which complicates the design flow of the device and does not allow to fully provide the necessary distribution of the flow rate at the outlet of the distributing chamber.

The closest technical solution to the claimed technical solution is chosen camera, comprising a housing and a bottom, a Central inlet pipe, a step on the housing, the tube Board and the guiding system devices installed in the distributing chamber [Mitenkov F. M., Golovko, V.F., Ushakov P.A. and other Design heat exchangers NPP. Under the General editorship of F. M. Mitenkov. - M.: Energoatomizdat, 1988. - P.55-58].

A disadvantage of the known device is that it protocl the th parts use additional structural element the guiding system devices, which complicates the design flow of the device and does not allow to fully provide the necessary distribution of the flow rate at the outlet of the distributing chamber.

The invention aims to remedy these disadvantages, namely, the provision of the necessary fluid flow at the outlet of the distributing chamber without the use of additional structural elements.

To eliminate this drawback in distributing chamber bounded on the outside by the housing, the plate and grid, connecting the Central inlet pipe and a lateral discharge channel through the gap between the bottom and the end part of the Central inlet pipe, and a lateral discharge channel formed by the housing and the Central supply pipe, and the grille is installed in the side of the discharge channel, features:

the porosity coefficient of the grating to provide in the range from 0.3 to 0.8,

- the ratio of the size seeders camera to perform in accordance with the terms and conditions, taking into account the relationship, first, the height of the distributing chamber and the inner diameter of the Central inlet pipe; secondly, the height of the entrance of the distributing chamber and the inner diameter of the Central inlet pipe; thirdly, the height of the distributing chamber, the height of the entrance and the inner diameter of the Central inlet pipe; h is tertykh, the height of the distributing chamber and the height of the entrance, the radius of the bottom of the casing, the outer radius of the Central inlet pipe; fifthly, the distance from the bottom up to speed on the case in accordance with the height of the distributing chamber and with the radius of the bottom of the chassis and the height of the entrance of the distributing chamber; Sixthly, the radius of the lower part of the body, the inner radius of the Central inlet pipe and the height of the entrance of the distributing chamber;

- dimensions of the flow part of the dealer's camera to associate with its hydrodynamic characteristics in the following ratio, taking into account the mass flow of the working medium through the hole lattice, the average mass flow rate of the working environment through it, a complete loss of pressure on the lattice, the density of the working environment, the average speed of the working environment in Central inlet tube, the radius of the upper housing, the outer radius of the Central inlet pipe, the current radius of the lattice, three empirical coefficient and the cross-sectional area incident on the grating jet production environment.

In private cases, the implementation of the dealer's camera features.

First, when one combined height of the distributing chamber, the distance from the bottom up to speed on the case, the radii of the upper and lower housing parts in the ratio that defines the relationship of the sizes of the flowing part of the distributing chamber and its hydrodynamic ha what acteristically, the cross-sectional area incident on the grating of the jet of the working environment to calculate the ratio, taking into account the relationship of PI, the radii of the upper and lower parts of the body, the height of the distributing chamber and the height of the entrance.

Secondly, when a different combination of the height of the distributing chamber, the distance from the bottom up to speed on the case, the radii of the upper and lower housing parts in the ratio that defines the relationship of the sizes of the flowing part of the distributing chamber and its hydrodynamic characteristics, the cross-sectional area incident on the grating of the jet of the working environment to calculate the ratio, taking into account the number PI, the height of the distributing chamber and the height of the entrance, the distance from the bottom up to speed on the case, the radius of the lower part of the body.

Thirdly, when two combinations of height distributing chamber and the height of the entrance and the radius of the bottom of the hull in the ratio that defines the relationship of the sizes of the flowing part of the distributing chamber with its hydrodynamic characteristics, to use an empirical coefficient depending on a complete loss of pressure on the lattice, the density of the medium, its average speed in the Central inlet pipe, two permanent empirical coefficients.

Fourthly, the third combination of height distributing chamber, the height of the entrance and the radius of the bottom part of the cor the USA, in the ratio that defines the relationship of the sizes of the flowing part of the distributing chamber with its hydrodynamic characteristics, use one empirical coefficient depending on a complete loss of pressure on the lattice, the density of the working environment and its average speed in the Central inlet pipe, a constant empirical coefficient empirical coefficient depending on a complete loss of pressure on the lattice, the density of the working environment and its average speed in the Central inlet pipe, the current radius of the lattice, the outer radius of the Central inlet pipe and the radius of the upper part of the body.

Longitudinal axial section of one of the variants distributing chamber is represented on the figure, where the following notation: 1 - side discharge channel; 2 - bottom; 3 - cover; 4 - hole grid; 5 - distributing chamber; 6 - grid; 7 - stage; 8 - Central inlet pipe.

The essence of the proposed technical solution is the following. Distributing chamber 5 is limited to outside the housing 3, the bottom 2 and the grating 6. Distributing chamber 5 connects the Central inlet pipe 8 and a lateral discharge channel 1 through the gap between the bottom 2 and the end part of the Central inlet pipe 8.

Side discharge channel 1 is formed by the housing 3 and the Central supply pipe 8.

Grill 6 to set the Lena in the lateral discharge channel 1.

The porosity coefficient of the grating 6 is in a range from 0.3 to 0.8.

The ratio of the sizes of the distributing chamber 5 correspond to the conditions:

where H is the height of the distributing chamber 5, m; d_{0}- inner diameter of the Central inlet pipe 8, m; h - the height of the entrance of the distributing chamber 5, m;_{1}- R is dius the lower part of the distributing chamber 5,
m; h_{0}- the distance from the bottom 2 to level 7 on the housing 3, m; r_{0}the inner radius of the Central inlet pipe 8, m

The sizes of the flowing part of the distributing chamber 8 is connected with its hydrodynamic characteristics in the following ratio

where M is the mass flow of the working medium through the opening 4 of the grating 6, kg/s;^{3};^{2}; r_{2}is the radius of the upper housing 3, m; R_{0}- the outer radius of the Central inlet pipe 8, m; b_{1}- empirical coefficient; l_{b}- empirical coefficient; r is the current radius of the grating 6, m; A is an empirical coefficient.

For the particular cases of the execution of the distributing chamber 5 is characterized by the following. First, when the ratio of the flow part of the distributing chamber 5, satisfying the condition

where H is the height of the distributing chamber 5, m; h_{0}- the distance from the bottom 2 to level 7 on the housing 3, m; r_{1}is the radius of the upper housing 3,m; r_{1}is the radius of the bottom case 3, m,

the cross-sectional area incident on the grating 6 jets working environment is determined by the ratio of:

where F is the cross-sectional area incident on the grating 6 jets working environment, m^{2}; π is the number PI; r_{2}is the radius of the upper housing 3, m;_{1}is the radius of the bottom case 3, m; H - the height of the distributing chamber 5, m

Secondly, when the ratio of the flow part of the distributing chamber 5, satisfying the condition

where H is the height of the distributing chamber 5, m; h_{0}- the distance from the bottom 2 to level 7 on the housing 3, m; r_{2}is the radius of the upper housing 3, m; r_{1}is the radius of the bottom case 3, m,

the cross-sectional area incident on the grating 6 jets working environment is determined by the ratio of:

where F is the cross-sectional area incident on the grating 6 jets working environment, m^{2}; π is the number PI; H - the height of the distributing chamber 5, m; h_{0}- the distance from the bottom 2 to level 7 on the housing 3, m; r_{1}is the radius of the bottom case 3, m;

Thirdly, when the ratios of the sizes of the flowing part of the distributing chamber 5 in accordance with the conditions