CN209854450U - Novel turbulence generator - Google Patents

Abstract

The utility model discloses a novel turbulence generator, include the rectangular pipe, cross cab apron, pipe, backup pad, be provided with the backup pad through-hole corresponding with the pipe in the backup pad, the backup pad through-hole links with the pipe entry end, cross cab apron one end and be provided with the pipe through-hole that corresponds with the pipe, cross the cab apron other end and be provided with the rectangle through-hole that corresponds with the rectangular pipe, excessive board pipe through-hole couples with the pipe exit end, cross cab apron rectangle through-hole and link with the rectangular pipe entry end. The utility model discloses a novel turbulence generator has that thick liquids dispersion is even does not have the flocculation, characteristics such as the finished paper homogeneity is good.

Description

Novel turbulence generator

Technical Field

The utility model relates to a turbulence generator technical field, more specifically relates to a novel turbulence generator.

Background

The turbulence generator of the flow box in the existing paper machine in the paper making industry at home and abroad at present adopts two-stage expansion, the turbulence intensity and the turbulence scale are not ideal, and simultaneously the pulp speeds of the cross sections of the pulp outlets are inconsistent, so that the quantitative of the formed horizontal breadth of the paper sheet is inconsistent.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide a novel turbulence generator, which has the characteristics of uniform slurry dispersion, no flocculation, good paper formation uniformity, etc.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a novel turbulence generator, includes the rectangular pipe, crosses cab apron, pipe, backup pad, be provided with the backup pad through-hole corresponding with the pipe in the backup pad, the backup pad through-hole links with the pipe entry end, cross cab apron one end and be provided with the pipe through-hole that corresponds with the pipe, cross the cab apron other end and be provided with the rectangle through-hole that corresponds with the rectangular pipe, cross the hookup of board pipe through-hole and pipe exit end, cross cab apron rectangle through-hole and rectangular pipe entry end.

Further, the thickness of the supporting plate is 50 mm.

Further, the length of the round tube is 125 mm.

Further, the length of the rectangular tube is 120 mm.

Further, the round pipe is a pipe bundle round pipe.

Furthermore, the number of the tube bundle circular tubes is multiple.

Furthermore, the number of the rectangular tubes is multiple.

The beneficial effects of the utility model are that: a novel turbulence generator is characterized in that slurry is in a turbulent flow state through the turbulence generator, the slurry is uniformly dispersed without flocculation, and the uniformity of finished paper is good. The size passing through the turbulence generator meets the length of the initial group of the outlet, so that the banner is uniformly distributed with small banner quantitative difference.

Drawings

Fig. 1 is a schematic sectional view of a novel turbulence generator according to the present invention;

fig. 2 is a schematic side view of a novel turbulence generator according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a rectangular tube; 2. a transition plate; 3. a circular tube; 4. and a support plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable manner, unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-2, the novel turbulence generator of the present embodiment includes a rectangular pipe 1, a transition plate 2, a circular pipe 3, and a support plate 4, wherein the support plate 4 is provided with a support plate through hole corresponding to the circular pipe 3, the support plate 4 through hole is connected to the circular pipe inlet end, one end of the transition plate 2 is provided with a circular pipe through hole corresponding to the circular pipe 3, the other end of the transition plate 2 is provided with a rectangular through hole corresponding to the rectangular pipe 1, the transition plate 2 circular pipe through hole is connected to the circular pipe outlet end, and the transition plate 2 rectangular through hole is connected to the rectangular pipe 1 inlet end.

The thickness of the support plate 4 in the new turbulence generator of this embodiment is 50 mm.

The length of the round tube 3 in the novel turbulence generator is 125 mm.

The length of the rectangular pipe 1 in the novel turbulence generator is 120 mm.

The pipe 3 is the tube bank pipe among this embodiment a novel turbulence generator.

The number of the tube bundle round tubes 3 in the novel turbulence generator is multiple.

The number of the rectangular tubes 1 in the turbulence generator of the present embodiment is multiple.

The working principle is as follows:

the slurry is sprayed out sequentially through the supporting plate 4, the circular tube 3 and the rectangular tube 1, in a short area close to the nozzle, the speed difference between the jet fluid and the fluid in the turbulence generator causes a shear layer, a vortex is formed due to the rapid increase of natural instability of the shear layer, and the jet set has stronger turbulence pulsation compared with single-strand jet just due to stronger vortex between the jet fluids, so that the strong turbulence pulsation promotes the uniform mixing and fiber dispersion of the slurry in the turbulence generator, and simultaneously dissipates the kinetic energy of the slurry, thereby attenuating the pressure pulsation to a certain extent.

Because the turbulence generator is used for uniformly and stably delivering small stock flows from the mixing chamber to the convergence areas of the upper lip plate and the lower lip plate, the speed of the stock flows through the turbulence generator must reach a turbulent flow state, and the flow speed is more than 1.4 m/s.

The length of the rectangular tube of the turbulence generator is the initial length of the jet set. (data from a calculation formula for the initial length of the jet set). The length of the rectangular tube, the length of the circular tube and the width of the supporting plate ensure the friction area

Longer rubbing times. And the second and third stages of other turbulence generators are integrally manufactured by tube bundle reducing, the length of the reducing rectangle is not more than 40mm, and the length of the outlet end cannot meet the length of the initial group.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made therein by those skilled in the art without departing from the scope of the present invention.

Claims (7)

1. The utility model provides a novel turbulence generator, its characterized in that includes the rectangular pipe, crosses cab apron, pipe, backup pad, be provided with the backup pad through-hole corresponding with the pipe in the backup pad, the backup pad through-hole links with the pipe entry end, cross cab apron one end and be provided with the pipe through-hole that corresponds with the pipe, cross the cab apron other end and be provided with the rectangle through-hole that corresponds with the rectangular pipe, cross board pipe through-hole and pipe exit end hookup, cross cab apron rectangle through-hole and rectangular pipe entry end hookup.

2. The novel turbulence generator as claimed in claim 1, characterized in that the thickness of the supporting plate is 50 mm.

3. The new turbulence generator as claimed in claim 1, characterized in that the length of the round tube is 125 mm.

4. The new turbulence generator as claimed in claim 1, characterized in that the rectangular tube has a length of 120 mm.

5. The new turbulence generator as claimed in claim 1, characterized in that said tubes are tube bundle tubes.

6. The novel turbulence generator as claimed in claim 5, characterized in that the number of said tubes of said tube bundle is plural.

7. The novel turbulence generator as claimed in claim 1, wherein the number of rectangular tubes is plural.