JP3037686B1 - Turbulence generator - Google Patents

Abstract

An object of the present invention is to make it easy to manufacture a baffle plate member arranged in a fluid passage and to obtain a stable fluid stirring effect. SOLUTION: Two pairs of cuts 5a, 6a and 5b, 6b are provided alternately from both sides in the width direction of a band-shaped plate member 4. The cutting depth of the longer cuts 5a and 5b is
And the length of the short cut 6a,
The cut depth of 6b is set to be approximately 1/3 of the width of the plate 4. The baffle plate member 3 is formed by twisting the plate member 4 around an axis about the center line in the plate width direction. This baffle plate member 3
Is inserted and arranged in the fluid passage 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbulence generator used for mixing fluids, and more particularly, to a method for mixing C heavy oil with pulverized coal,
The present invention relates to a turbulence generator suitable for use when adding water, dye waste, or the like.

[0002]

2. Description of the Related Art Generally, as a turbulence generating device of this kind, for example, as shown in Japanese Utility Model Publication No. 59-16115, a plurality of strips are formed on a strip-shaped plate at arbitrary intervals in the longitudinal direction. Is provided, and at least one of the front and rear portions is bent at a required angle with respect to the plate material surface through the cut to form a substantially triangular baffle plate portion, and this plate material is disposed in the fluid passage. Known to do so.

[0003] The conventional turbulence generator has the advantage that it is relatively easy to manufacture and can be arranged in a non-linear fluid passage. However, it has a triangular baffle plate formed on a plate. However, there is a problem that the fluid passage must be formed in advance in a factory or the like, and the fluid passage does not have a smooth curve.

Therefore, in some cases, for example, Japanese Utility Model 4-292
As shown in Japanese Patent No. 50, a plurality of cuts extending in the width direction of the strip at arbitrary intervals in the longitudinal direction are provided in the strip-shaped plate, and this plate is rotated around its center in the center in the width direction. To form a baffle plate that is smoothly curved and twisted in the opposite direction to each other on both sides through the cuts,
A turbulence generator has been proposed in which this is arranged in a fluid passage.

[0005]

In the conventional turbulence generator, the baffle plate is smoothly curved and twisted with respect to the surface of the plate, so that the pressure loss is reduced and
Although it has the advantage that the fluid passage can be made a smooth curve, depending on the material of the plate material, the baffle plate portion does not become curved and twisted, and the pressure loss increases and the pressure loss becomes stable. There is a problem that a fluid stirring effect cannot be obtained.

An object of the present invention is to provide a turbulence generator which is easy to manufacture and has a stable fluid stirring effect.

Another object of the present invention is to provide a twisted state of a portion sandwiched between two cuts and a twisted state of another portion when a plate material is twisted around an axis with its center in the width direction as an axis. To provide a turbulence generator that can be easily changed.

Another object of the present invention is to provide a turbulence generator which can easily make the twisted state of a portion sandwiched between two cuts and the twisted state of the other portion into an optimum twisted state. To offer.

Still another object of the present invention is to provide a turbulence generating device which can easily twist a plate material and can suppress pressure loss even if each twisted portion does not have a smooth curved shape. .

[0010]

In order to achieve the above object, the present invention provides a turbulence generating device comprising a baffle plate member arranged in a fluid passage, wherein the baffle plate member is formed into a band-like plate material. A plurality of cuts are alternately provided from both sides in the width direction, and the plate is formed by twisting around the axis with the center in the width direction as an axis. As a result, the twisted state of the portion sandwiched by the cuts is different from the twisted state of the other portions, and the number of fluid separation and collection points increases, and a stable fluid stirring effect can be obtained. Also, it is easy to manufacture.

The present invention is also characterized in that the cuts are alternately provided two by two, and one of the two cuts is made deeper than the other cut. I do. This makes it possible to easily change the twisted state sandwiched by the two cuts and the twisted state of the other portions.

According to the present invention, the notch having a deeper cut depth is set to a cut depth approximately equal to 1/2 of the plate width of the plate material, and the notch having a smaller cut depth is set to approximately 1 1/2 of the plate width of the plate material. /
The depth of cut is set to 3. Thus, the twisted state of the portion sandwiched by the two cuts and the twisted state of the other portions can be easily changed to the optimum twisted state and the twisted relationship.

[0013] The present invention further provides an interval between two cuts,
It is characterized in that the intervals at which the cuts are provided alternately have substantially the same dimensions. Thus, both the portion sandwiched by the two cuts and the other portion are short in the axial direction, so that the plate material can be easily twisted, and even if each twisted portion does not have a smooth curved shape, Pressure loss can be suppressed.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a turbulence generator according to an embodiment of the present invention.
As shown in FIGS. 1A and 1B, a cylindrical fluid passage 2 made of a flexible synthetic resin tube or the like is provided. In the fluid passage 2, a baffle plate member 3 is provided. Inserted and placed.

As shown in FIGS. 1 (c) and 2 (a) to 2 (c), the baffle plate member 3 is provided with a long cut 5 from both sides in the width direction in a plate material 4 made of, for example, a thin stainless steel strip.
a, 5b and short cuts 6a, 6b are provided alternately as a pair, and the plate material 4 is formed by twisting the plate material 4 about the center line O in the plate width direction.

Each of the long cuts 5a and 5b is shown in FIG.
As shown in the figure, the cut depth is approximately 1 of the plate width of the plate material 4.
/ 2, and each short cut 6
a, 6b are such that the cutting depth is approximately 1/1 of the plate width of the plate material 4.
The length is set to 3.

Further, two notches 5a of the pair, 6a and 5b, 6b, as shown in FIG. 2 (a), the interval is set to _{L 1,} also cuts 5a, 5b, 6
a, 6b to provide alternating intervals, i.e. the spacing between the spacing and the short cuts 6b and long cut 5a between the short cuts 6a and long cut 5a is set to L _2, respectively. The distances L ₁ and L ₂ are set to be substantially the same.

Next, the operation of the present embodiment will be described. In manufacturing the baffle plate member 3, first, for example, a thin stainless steel plate is cut into a strip shape to produce a plate material 4, and a pair of cuts 5a, 6a and 5b,
6b are provided alternately from both sides in the plate width direction. At this time, the cutting depth of each of the cuts 5a, 5b, 6a, 6b is such that the long cuts 5a, 5b have a length substantially equal to 1/2 of the plate width of the plate material 4.
Further, the short cuts 6a and 6b are set to have a length substantially equal to 1/3 of the width of the plate material 4. Each notch 5a, 5b, 6a, each interval _L 1, _{L 2} between 6b, is substantially the same size.

In this manner, each cut 5a,
If 5b, 6a and 6b are provided, the plate member 4 is twisted by a required amount around the axis with the center line O in the plate width direction as the axis. Then, a baffle plate member 3 as shown in FIGS. 1A and 1B is formed.

FIG. 1 (a) shows an example thereof, and FIG.
FIG. 1B shows a state in which the baffle plate member 3 has been rotated approximately 90 degrees around the axis from the position of FIG. 1A, and FIG.
Denotes a plate member 4 before being twisted around the axis to form the baffle plate member 3.

[0021] In FIG. 1 (c), the cut 5b, a member sandwiched in 6b _{P 1,} cut 5a, _{P 2} and interposed portion in 6a, cut 5b, the wider portion of the inter-6b _{R 1,} cuts 5a When the wider portion of between 6a and _{R 2,} the respective portions _{P 1, P 2, R 1} , twist directions are all different direction _{R 2.} For this reason, the fluid flows into the predetermined portions P ₁ , P ₂ ,
After flowing along R ₁ , R ₂ , the next part P ₁ , P ₂ , R
When migrating to _1, R _2, separation, collection, agitation is to become a turbulent repeated, sufficient stirring and mixing of fluids is performed.

Further, the fluid is supplied to the predetermined portions P ₁ , P ₂ ,
When transitioning from R ₁ , R ₂ to the next portion P ₁ , P ₂ , R ₁ , R ₂ , the entire amount of the fluid is not uniformly stirred and mixed, but is sufficiently stirred and mixed in the fluid. There will be a portion where mixing is not sufficiently performed, a portion where mixing is performed insufficiently, and a portion where mixing is not substantially performed. This difference in the degree of agitation and mixing is manifested as a difference in flow velocity between the respective parts, whereby the fluid is also agitated and mixed in the front-rear direction.
Further, in the case of a fuel oil containing a solid content in a fluid, such as a fuel oil in which pulverized coal is mixed into a heavy oil, the solid content is refined and dispersed, so that the mixing properties are uniform. Moreover, since the lengths of the portions P ₁ , P ₂ , R ₁ , R ₂ in the axial direction are short, the portions P ₁ , P ₂ , R ₁ , R ₂ do not have a smooth curved shape. Also, the pressure loss of the fluid at the time of stirring and mixing can be kept low.

This effect is obtained because a pair of cuts 5a, 6a and 5b, 6b are provided alternately, and the cuts 5a, 5b and the cuts 6a, 6b have different cut lengths. It is.

That is, by providing two pairs of cuts 5a, 6a and 5b, 6b, narrow portions P ₁ , P ₂ are formed, and these portions P ₁ , P ₂ correspond to the width of the plate material 4. When twisted around the axis with the direction center line O as the axis, the wide portions R1 and R2 have different twist positions in the circumferential direction. Moreover, since the cut depths of the long cuts 5a and 5b and the short cuts 6a and 6b are different from each other,
Since each of the portions P ₁ , P ₂ , R ₁ , R ₂ has a trapezoidal shape, the narrow portions P ₁ , P ₂ and the wide portions R ₁ , R ₂
Will also differ from each other. For this reason, the portions P ₁ , P ₂ , R ₁ , and R ₂ are different from each other around the center line O in the plate width direction and in the twist direction with respect to the center line O in the plate width direction. This is because a sufficient function can be obtained.

It should be noted that the cut depths of the cuts 5a, 5b, 6a, 6b are different from each other, rather than the same size, when the narrow portions P ₁ and P ₂ and the wide portion R _{1 are formed.} ,
Although twist direction and R ₂ is preferred because larger change, in particular, substantially long cuts 5a, and 5b of the plate width of the plate 4 1
/ 2 and a short cut 6a, 6b
It has been confirmed by experiments by the present inventors that the most preferable twisted state can be obtained by setting the cutting depth to 1/3 of the plate width of the plate material 4.

Thus, two pairs of cuts 5a, 5b and 5b, 6b are provided alternately on both sides in the width direction of the plate material 4.
This is twisted around an axis about the center line O in the plate width direction to form the baffle plate member 3 and the baffle plate member 3 is arranged in the fluid passage 2, so that manufacture is easy, and A stable fluid stirring effect can be obtained.

In the above-described embodiment, the case where two pairs of cuts 5a, 6a and 5b, 6b are provided alternately has been described. However, three pairs or four or more notches may be provided alternately as a pair. It may be.

Although not particularly described in the above embodiment, for example, the wide portions R ₁ , R _2, etc.
An opening in the thickness direction may be provided.

[0029]

As described above, according to the present invention, in a turbulence generating device having a baffle plate member arranged in a fluid passage, the baffle plate member is formed on a band-shaped plate member from both sides in the width direction. A plurality of cuts are provided alternately, and this plate is formed by twisting around the axis with the center in the width direction as the axis, so that the twisted state of the portion sandwiched by the cuts and other Is different from the twisted state of the portion, the number of separated and gathered fluids increases, a stable fluid stirring effect can be obtained, and the production is easy.

According to the present invention, the cuts are alternately provided two by two, and one of the two cuts is made deeper than the other cut.
The twisted state sandwiched by the two cuts and the twisted state of the other portions can be easily changed.

According to the present invention, the notch having a deeper cut depth is set to a cut depth approximately equal to 1/2 of the plate width of the plate material, and the notch having a smaller cut depth is set to be approximately 1 1/2 of the plate width of the plate material. /
Since the cut depth is set to 3, the twisted state of the portion sandwiched between the two cuts and the twisted state of the other portions can be easily changed to the optimum twisted state and the twisted relationship.

[0032] The present invention further provides the following:
Since the intervals at which the cuts are provided alternately are approximately the same size, the portion sandwiched by the two cuts and the other portion are also short in the axial direction, making it easy to twist the plate material. In addition, the pressure loss can be suppressed even if each twisted portion does not have a smooth curved shape.

[Brief description of the drawings]

FIG. 1A is a configuration diagram showing a turbulence generator according to an embodiment of the present invention, and FIG.
FIG. 4C is a configuration diagram showing a state of the plate material rotated by an angle, and FIG. 4C is a configuration diagram showing a state of the plate material before being twisted around the axis.

2 (a) is an explanatory view showing a plate member similar to FIG. 1 (c), FIG. 2 (b) is a left side view of FIG. 1 (a), and FIG. 2 (c) is a right side view of FIG. 1 (a).

Narrow portion 1 turbulence generator 2 fluid passages 3 baffle member 4 plate 5a, 5b length cuts 6a, the 6b short cuts O plate width direction center line L _{1, L 2} distance P _{1, P 2} width EXPLANATION OF REFERENCE NUMERALS R ₁ , R ₂ Wide part

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B01F 5/00 F28F 1/40 F28F 13/12

Claims (4)

(57) [Claims] 1. A turbulence generating device comprising a baffle plate member arranged in a fluid passage, wherein the baffle plate member is provided with a plurality of cuts alternately on both sides in the width direction of a band-shaped plate member. A turbulence generator, wherein the plate member is formed by twisting the plate material around an axis about a central portion in the width direction. 2. A cut is provided alternately every two cuts, and one of the two cuts has a deeper cut depth than the other cut. A turbulence generator as described. 3. The incision having a deeper incision depth has an incision depth that is approximately の of the plate width of the plate material, and the incision in which the incision depth is shallower has an incision that is approximately 1１ of the plate width of the plate material. 3. The turbulence generator according to claim 2, wherein the turbulence generator has a cut depth of / 3. 4. The turbulence generator according to claim 2, wherein an interval between the two cuts and an interval at which the cuts are alternately set are set to substantially the same size.