TW201417869A - Mixing device - Google Patents

Abstract

The present invention provides a mixing device for mixing a first fluid and a second fluid, which comprises a container and a mixing base. The container has a receiving space. The mixing base is mounted with the container for mixing the first fluid and the second fluid, and comprises an inner cone wall, an outer cone wall, a conic space between the inner cone wall and the outer cone wall, a first delivery pipe and a second delivery pipe. The conic space has an initial mixing area and a mixing flow area adjacent to the initial mixing area. The first fluid and the second fluid are introduced to the initial mixing area through the first delivery pipe and the second delivery pipe, respectively, and pushed for generating eddies and flowing toward the mixing flow area, and at last smoothly overflowing to the receiving space. The prevent invention can more uniformly mix the fluids.

Description

Mixing device

The present invention relates to a mixing device, and more particularly to a mixing device suitable for mixing two different fluids.

In the engineering field, it is often desirable to mix two different fluids into another fluid, such as sand and water, and tap water/wastewater treatment for primary or secondary treatment. A mixing device generally used for mixing fluids, generally comprising a carrying tank for containing the fluid, and a stirring rod mounted on the carrying tank, the mixing device is rotated by means of the stirring rod to achieve a Describe the efficacy of two different fluid mixtures.

However, this method can be uniformly mixed only in the region where the stirring rod rotates, and the fluid in the region farther from the stirring rod cannot be mixed evenly, especially when the viscosity of the two fluids to be mixed is different. If the flow angle is too large, or the flow rate is too large, the mixing unevenness is more likely to occur. If the speed of the rotary stirring is increased, there will be excessive energy consumption and the stirring rod is damaged. Therefore, it is necessary to produce the mixing. The lack of further improvement.

Accordingly, it is an object of the present invention to provide a more uniform and easy to operate mixing device that mixes fluids.

Therefore, the mixing device of the present invention is suitable for mixing a different first fluid and a second fluid into a third fluid, the mixing device comprising: a carrying bucket, and a mixing seat.

The carrying bucket has a receiving space.

The mixing seat is mounted on the carrying bucket and mixes the first fluid and the second fluid, and includes an inner cone wall, an outer cone wall surrounding the inner cone wall, and an inner cone wall and the outer a tapered space between the tapered walls, a first delivery tube, and a second delivery tube. The tapered space has an initial mixing zone and a mixed flow zone having a cross-sectional area that tapers from an end adjacent the initial mixing zone toward the other end. The first delivery tube introduces the first fluid into the initial mixing zone. The second delivery tube introduces the second fluid into the initial mixing zone.

An eddy current field is generated when the first fluid and the second fluid enter the initial mixing zone, and then is stably pushed by the continuously introduced fluid rotation, and flows to the mixed flow zone of the tapered space and is sufficiently mixed into the third fluid, Finally, it smoothly flows to the receiving space of the carrying bucket.

The beneficial effect of the invention lies in that the shape of the conical space and the fluid inflow design allow the fluid to generate an eddy current field, and the fluid vortex flow process is used to achieve a better mixing effect.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 1, FIG. 2 and FIG. 3, a preferred embodiment of the mixing device of the present invention is suitable for mixing a different first fluid 11 and a second fluid 12 into a third fluid 13, which in this embodiment The first fluid 11 is clean water, and the second fluid 12 is muddy water containing sediment particles.

The mixing device comprises: a carrying bucket 2, a mixing seat 9 mounted on the carrying bucket 2, and a stirring unit 5 mounted on the carrying bucket 2.

The carrying bucket 2 has a hollow upright shape and has a receiving space 20, a side hole 21, and a drain hole 22. The receiving space 20 can accommodate the third fluid 13. The side hole 21 is for piercing when the mixing seat 9 is mounted. The bleed hole 22 is a position provided at the height of the top edge of the stirring unit 5.

The mixing seat 9 is located above the accommodating space 20 and can mix the first fluid 11 and the second fluid 13, and includes an inner cone wall 4, an outer cone wall 3 surrounding the inner cone wall 4, and a medium A conical space 8 between the inner cone wall 4 and the outer cone wall 3, a first conveying pipe 6, and a second conveying pipe 7.

The outer tapered wall 3 and the vertical line 10 of the lead have an outer oblique angle α. The outer oblique angle α of the embodiment is 22.5 degrees, but the size may range from 20 degrees to 24 degrees when implemented, because If the external oblique angle α is less than 20 degrees, the mixing efficiency will be reduced due to the eddy current field unevenness. If the external oblique angle α is greater than 24 degrees, the mixing device will vibrate due to the turbulent flow field being disordered and excessive.

The inner tapered wall 4 and the vertical line 10 of the lead have an inner oblique angle β, and the inner oblique angle β of the embodiment is 31 degrees. It should be noted that the inner oblique angle β can be the outer oblique angle when implemented. The angle α is 1.2 to 1.4 times. If the inner angle β is less than 1.2 times or more than 1.4 times the external angle α, the effect of rotation and mixing is greatly reduced.

The tapered space 8 has an initial mixing zone 81 at the bottom, and a mixed flow zone 82 having a cross-sectional area that tapers from the other end adjacent the initial mixing zone 81 toward the other end. The initial mixing zone 81 is for the first stream The region where the body 11 and the second fluid 12 meet.

The cross-section of the mixed flow zone 82 is circular (see FIG. 5) for mixing the first fluid 11 and the second fluid 12 into the third fluid 13, and the mixed flow zone 82 has an oblique upward direction The third fluid 13 can be smoothly and smoothly overflowed into the overflow port 820 of the accommodation space 20.

The first conveying pipe 6 is connected to the bottom of the outer cone wall 3 and penetrates the side hole 21 and has a first pipe wall 61. The first tube wall 61 defines an inflow port 613 located outside the carrier barrel 2, a first channel 611 communicating with the inflow port 613, and an outflow port connecting the first channel 611 and the initial mixing zone 81. 612. The inflow port 613 is connected to a pump (not shown) so that the first fluid 11 can be transported into the first channel 611. The technique of the pump is generally well known and is not the focus of the present invention. This will not be described in detail here. The outflow port 612 is adapted to flow the first fluid 11 to the initial mixing zone 81 of the conical space 8.

Referring to FIG. 2, FIG. 3 and FIG. 4, the second conveying pipe 7 is disposed on the inner cone wall 4 in an upright manner, and has a second pipe wall 71 defining a second passage 710, and A sub-scattering orifice 72 is provided in the second tube wall 71 and corresponding to the initial mixing zone 81. The cross section of the second tube wall 71 is circular, and further has an inner wall surface 711 surrounding the second passage 710, and a bottom wall surface 712 adjacent to the outflow port 612. The top end of the second tube wall 71 is connected. Another pump, not shown, is shown to enable the second fluid 12 to flow into the second passage 710 in an upright direction. The aliquot scattering orifices 72 can respectively supply the second fluid 12 to the initial mixing zone 81 of the tapered space 8.

The bottom wall surface 712 is a hemispherical shell shape. It should be noted that the bottom wall surface 712 is The distance from the bottom edge to the outflow port 612 of the first tube wall 61 is half the diameter of the first passage 611, in order to force the first fluid 11 to be dispersed along the bottom wall surface 712 when flowing out and to produce a tangent. Flow field.

In this embodiment, the halved scattering orifices 72 are evenly distributed into ten rows from top to bottom, and each row has twenty sub-scattering orifices 72. The cross-sectional area of the aliquoting orifices 72 is matched with the second fluid 12 The volume of the sediment particles is equally set to ensure that the sediment particles can pass, wherein the sum of the cross-sectional areas of the equal-dividing orifices is 0.85 to 0.95 times the cross-sectional area of the second passage 710. The flow rate of the second fluid 12 to the initial mixing zone 81 is optimal in the range. Further, each of the sub-scattering orifices 72 extends outward in the horizontal direction and has an inner port 721 formed on the inner wall surface 711. a scattering direction 16 from the inner port 721 along the axis 14 of the sub-scattering orifice 72 is a radial line that is radially connected to the inner port 721 from the center A of the second tube wall 7. 15 clips a scattering angle θ. The scattering angle θ of the embodiment is 18 degrees, but may be between 18 degrees and 22.5 degrees when implemented, because if the scattering angle θ is less than 18 degrees, the eddy current intensity will be too large to cause a turbulence and cause vibration, if When the scattering angle θ is larger than 22.5 degrees, the eddy current field is attenuated to reduce the mixing effect.

The agitating unit 5 is located in the receiving space 20 of the carrying tub 2, and can be used for destructively stirring the third fluid 13 to make the third fluid 13 more uniform. However, in the implementation of the present invention, the setting may be omitted. Stirring unit 5.

The operation mode of the present invention is simple, and only the first fluid 11 and the second fluid 12 need to be transported into the first delivery tube 6 and the second delivery tube 7, respectively. The first fluid 11 in the first passage 611 passes through the outflow After entering the initial mixing zone 81, the port 612 is dispersed by the bottom wall surface 712 and flows along a ramping direction 17 from the initial mixing zone 81 to the mixed flow zone 82, while the second fluid 12 is from the second After the passage 710 flows out through the aliquot scattering orifice 72, it flows into the initial mixing zone 81 along the scattering direction 16, and the first fluid 11 along the ramping direction 17 and the second fluid 12 along the scattering direction 16 After the initial mixing zone 81 is assembled, the continuously introduced fluid is rotationally pushed and mixed with each other to become a third fluid 13 that vortexly rotates along the ramp direction 17 and stably flows toward the overflow port 820. The third fluid 13 After reaching the overflow port 820, it will smoothly overflow and fall down, and accumulate in the accommodating space 20, at this time, the third fluid 13 is stirred by the rotation of the stirring unit 5 until it is accumulated to the bleed hole. The height of 22 is then discharged through the bleed hole 22.

Therefore, the present invention mainly designs the halved scattering flow holes 72 and the tapered space 8, and the vortex generated by the convergence of the slanting direction 17 and the scattering direction 16 is supplemented by the arrangement of the stirring unit 5. The turbulence is disturbed such that the first fluid 11 and the second fluid 12 can be uniformly disturbed and mixed in the mixed flow region 82, and then the rotation of the stirring unit 5 is supplemented to make the third fluid 13 more uniform. Compared with the prior art, only the stirring method is adopted, the invention can achieve better mixing effect, and even in the practice of the invention, the stirring unit 5 can be omitted, and only the vortex disturbance is used for mixing, thereby further saving the need for driving the stirring unit. Energy also reduces the chance of collision damage during agitation and reduces the size and manufacturing cost of the mixing unit.

In summary, the mixing device of the present invention is designed to cooperate with the geometry of the inner cone wall 4 and the outer cone wall 3, and the scattering direction 16 is designed. The uniformity after mixing is improved, and the phenomenon of uneven mixing in the past is improved, so that the object of the present invention is achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

10‧‧‧ lead vertical line

11‧‧‧First fluid

12‧‧‧Second fluid

13‧‧‧ Third fluid

14‧‧‧Axis line

15‧‧‧ radial straight line

16‧‧‧scatter direction

17‧‧‧ ramp up direction

2‧‧‧ carrying bucket

20‧‧‧Containing space

21‧‧‧ side holes

22‧‧‧Discharge hole

3‧‧‧ outer cone wall

4‧‧‧ inner cone wall

5‧‧‧Stirring unit

6‧‧‧First duct

61‧‧‧First wall

611‧‧‧First Passage

612‧‧‧Export

613‧‧‧flow entrance

7‧‧‧Second duct

71‧‧‧Second wall

710‧‧‧second channel

711‧‧‧ inner wall

712‧‧‧ bottom wall

72‧‧‧ sub-scattering orifice

721‧‧‧Internal port

8‧‧‧Cone space

81‧‧‧Initial mixing zone

82‧‧‧ mixed flow area

820‧‧‧ overflow

9‧‧‧ mixed seat

A‧‧‧ Center

Α‧‧‧outer angle

Β‧‧‧ internal angle

Θ‧‧‧scatter angle

1 is a perspective exploded view showing a preferred embodiment of the mixing device of the present invention; FIG. 2 is a cross-sectional view showing the assembled internal structure of the preferred embodiment; FIG. 3 is a partial cross-sectional view showing the preferred embodiment. The embodiment is a state in which a first fluid and a second fluid are mixed into a third fluid; FIG. 4 is a cross-sectional view showing a plurality of partial scattering orifices of the second wall of the preferred embodiment and a scattering direction thereof And Figure 5 is a cross-sectional view illustrating the configuration presented in cross section of the preferred embodiment.

10‧‧‧ lead vertical line

2‧‧‧ carrying bucket

20‧‧‧Containing space

21‧‧‧ side holes

22‧‧‧Discharge hole

3‧‧‧ outer cone wall

4‧‧‧ inner cone wall

5‧‧‧Stirring unit

6‧‧‧First duct

61‧‧‧First wall

611‧‧‧First Passage

612‧‧‧Export

613‧‧‧flow entrance

7‧‧‧Second duct

71‧‧‧Second wall

710‧‧‧second channel

712‧‧‧ bottom wall

72‧‧‧ sub-scattering orifice

8‧‧‧Cone space

81‧‧‧Initial mixing zone

82‧‧‧ mixed flow area

820‧‧‧ overflow

9‧‧‧ mixed seat

Α‧‧‧outer angle

Β‧‧‧ internal angle

Θ‧‧‧scatter angle

Claims (10)

A mixing device adapted to mix a different first fluid and a second fluid into a third fluid, and comprising: a carrying bucket having a receiving space; and a mixing seat mounted to the carrying bucket, and Mixing the first fluid and the second fluid, comprising an inner cone wall, an outer cone wall surrounding the inner cone wall, and a tapered space between the inner cone wall and the outer cone wall, The tapered space has an initial mixing zone, and a mixed flow zone having a cross-sectional area that tapers from an end adjacent the initial mixing zone toward the other end, and the mixing block further includes a first fluid introduced into the initial mixing zone. a first delivery tube, and a second delivery tube for introducing the second fluid into the initial mixing zone; when the first fluid and the second fluid enter the initial mixing zone, the fluid introduced by the continuous introduction is pushed to The mixed flow zone of the conical space flows and mixes into the third fluid, and finally overflows into the receiving space of the carrying bucket. The mixing device according to claim 1, wherein the second conveying pipe has a second pipe wall defining a second passage, and the plurality of the second pipe walls are respectively disposed on the second pipe wall and corresponding to the initial mixing The sub-scattering orifice of the zone. The mixing device according to claim 2, wherein the total cross-sectional area of the aliquot scattering orifice is 0.85 to 0.95 times the cross-sectional area of the second passage. According to the mixing device of claim 1, wherein the mixing The outer tapered wall of the seat is clipped with a lead vertical line with an outer bevel angle ranging from 20 degrees to 24 degrees. The mixing device according to claim 4, wherein the inner cone wall of the mixing seat and the vertical line of the lead have an inner oblique angle, and the inner oblique angle is 1.2 to 1.4 times the outer oblique angle. The mixing device according to claim 2, wherein the second tube wall has a circular cross section. The mixing device according to claim 6, wherein the second pipe wall has an inner wall surface surrounding the second passage, and each of the sub-scattering flow holes has an inner port formed on the inner wall surface, from the inside a scattering direction of the port along the axis line of the sub-scattering flow hole is a scattering angle with a radial straight line connected from the center of the second tube wall to the inner port, the range of the scattering angle Between 18 degrees and 22.5 degrees. The mixing device of claim 2, wherein the first conveying pipe has a first pipe wall, the first pipe wall defines a first passage, and the first conduit is connected to the initial mixing The flow outlet of the zone, the second pipe wall further has a bottom wall surface adjacent to the outflow port, the distance from the bottom wall face to the outflow port being half of the diameter of the first passage. The mixing device of claim 1, wherein the mixing seat is located above the housing space. The mixing device according to claim 9, further comprising a stirring unit installed in the carrying barrel and located in the receiving space, the stirring unit being capable of stirring the third fluid to make it more uniform.