TWI568685B - Diffuser - Google Patents

Description

Air disc

The present invention relates to a diffuser disk, and more particularly to a diffuser disk for use in an aeration system to increase the amount of dissolved oxygen in water.

Generally, aerobic biological treatments of sewage or wastewater treatment systems, breeding ponds, etc., are generally used to increase the amount of dissolved oxygen in the water to provide the oxygen required for the organism in the water. The aeration system comprises a plurality of air diffusing discs, a gas pipeline connected to each of the air diffusing discs, and a blower connected to the gas pipeline. Most of the diffuser discs are located at the bottom of the pool or the sink. After the air is pressurized into the gas pipeline by the blower, the air then forms bubbles through the diffuser disc to enter the water. The diffuser disk is mainly used to diffuse the airflow to increase the air outlet area, and the airflow passes through the micropores and then enters the water to generate finer bubbles to increase the dissolved oxygen rate. A conventional air diffuser, such as disclosed in Japanese Patent No. M273946, includes a disk body, a gas supply pipe communicating with a predetermined pore of the disk body, and a long fiber woven on the disk body. A diffuser diaphragm and a check valve disposed between the diffuser diaphragm and the air hole.

Since the gas concentration is output from the single pore of the disk through the diffusing film, the area of the diffusing film corresponding to the air hole, that is, the center of the diffusing film The area, which is subjected to a large gas impact pressure, tends to cause the fibers of the diffusing film to be stretched and deformed to affect the refinement of the bubbles. In addition, since the aperture of the single air hole of the disk body is large, the check valve is less likely to completely close the air hole, causing the liquid to flow into the air hole and enter the air supply pipe.

Accordingly, it is an object of the present invention to provide a diffuser disk having an air guide channel to avoid concentration of gas pressure.

Another object of the present invention is to provide a diffuser disk having a support mesh to prevent deformation of the diffuser.

It is still another object of the present invention to provide a diffuser disk having the effect of preferably blocking liquid from entering the gas delivery line.

Therefore, the air diffusing disc of the present invention comprises: a base, a diffusing mechanism and a backstop mechanism. The base has an upper surface, a lower surface, an air guiding channel unit and an air outlet unit. The air guiding channel unit is formed by the upper surface recessed and includes a central recess, and a plurality of radiating channels radially extending from the central recess to the upper surface. The air outlet unit includes a plurality of air outlet holes formed at the central recess and extending through the upper and lower surfaces, respectively. The air diffusing mechanism is fixed on the upper surface of the base, and includes a diffusing film covering the upper surface and densely covering the micropores, and a ring cover pressed against the circumferential side of the diffusing film to fix the diffusing film . The backstop mechanism is coupled to the base and includes a connecting unit and a one-way stop unit. The connecting unit is connected to the lower surface of the base and has a position corresponding to the air outlet unit, and has a hollow tube portion to connect with a gas pipe. The hollow tube portion defines a passage and the passage communicates with the outlet holes to form an outlet passage. One-way stop unit The air outlet passage is floatably disposed, and the air outlet passage is opened when the air conduit is ventilated, and the air outlet passage is closed when the air conduit is not ventilated.

In the air diffusing disk of the present invention, the air guiding channel unit further includes a plurality of annular channels arranged at a concentric circle centering on the central groove and intersecting the radiation channels, the radiation grooves The track and the annular channels together form an interlaced gas guiding network.

The air diffusing disc of the present invention, wherein the air diffusing mechanism further comprises a supporting net covering the air diffusing piece and interposed between the ring cover and the air diffusing piece, the supporting net has a certain rigidity to be pressed Support the diffuser.

The air diffusing disc of the present invention, wherein the base further has a through hole formed at the central recess and penetrating the upper and lower surfaces, and the punching position corresponds to the axis of the hollow tubular portion, the single The blocking unit includes a floatable stop member having a plate body received in the central groove and a plug connected to the plate body, the plate body covering the air outlet holes, A plug is inserted through the through hole and protrudes into the hollow tube portion.

In the air diffusing disc of the present invention, the one-way stopping unit further includes a resilient plug block connected to the end of the plug, the elastic plug block interlocking with the stopping member and blocking the passage.

The air venting disc of the present invention, wherein the one-way blocking unit further includes a ring fixed in the hollow tube portion, the ring defines a communication hole, and the elastic plug block is located at the base and the The communication hole is blocked between the rings and when the gas pipe is not ventilated to block the passage.

The air diffusing disc of the present invention, wherein the one-way blocking unit includes a resilient plug block that is floatably disposed in the hollow tubular portion to receive the gas The channel is blocked when the tube is not ventilated.

In the air diffusing disc of the present invention, the one-way blocking unit further includes a resisting member and an elastic member disposed in the hollow tubular portion, the abutting member being coupled to the elastic plug and elastic The elastic member is disposed between the base and the abutting member and applies a bias to the abutting member to move the elastic plug block to a position blocking the passage.

In the air diffusing disc of the present invention, the one-way blocking unit further includes a ring fixed in the hollow tube portion, the ring defines a communication hole, and the elastic plug is located at the abutting member The communication hole is blocked between the ring and when the gas pipe is not ventilated to block the passage.

The air diffusing disc of the present invention, wherein the base further has a mounting groove formed by the lower surface recessed portion, and the connecting unit of the backstop mechanism further has a periphery around the hollow tube portion and near the edge The fixing portion is disposed in the mounting groove and is fixed to the base.

The effect of the invention is that the gas guiding channel unit can disperse the gas to prevent the gas pressure from being concentrated in the central region of the diffusing sheet, thereby reducing the risk of deformation of the diffusing sheet, and further supporting the scattering by the supporting net. The gas sheet can further prevent the deformation of the air diffusion sheet, thereby maintaining the better effect of refining the air bubbles. Moreover, the backstop mechanism can surely close the outlet passage to achieve a better effect of preventing liquid from entering the gas delivery pipe.

100‧‧‧Distribution plate

1‧‧‧Base

11‧‧‧ upper surface

12‧‧‧ Lower surface

13‧‧‧air guiding channel unit

131‧‧‧Central groove

132‧‧‧radiation channel

133‧‧‧Circular channel

14‧‧‧Exhaust unit

141‧‧‧ Vents

15‧‧‧Installation slot

16‧‧‧Perforation

2‧‧‧Dispersing agency

21‧‧‧Dispersible film

22‧‧‧Support net

23‧‧‧ ring cover

3‧‧‧Backstop mechanism

31‧‧‧ Connection unit

311‧‧‧ hollow tube department

312‧‧‧ Fixed Department

313‧‧‧ channel

32‧‧ unidirectional stop unit

321‧‧‧stops

3211‧‧‧ board

3212‧‧‧

322‧‧‧Elastic plug

323‧‧Sie ring

3231‧‧‧Connected holes

324‧‧‧Relying parts

325‧‧‧Flexible parts

4‧‧‧ gas pipeline

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is a perspective view showing the first preferred embodiment of the diffusing disk of the present invention. 2 is another perspective view of the first preferred embodiment; FIG. 3 is an exploded perspective view showing the member of the first preferred embodiment; FIG. 4 is a partial view showing the FIG. 5 is another perspective view of FIG. 3 illustrating the components of the first preferred embodiment; FIG. 6 is a cross-sectional view illustrating the first preferred embodiment. FIG. 7 is an exploded perspective view showing a second preferred embodiment of the diffusing disk of the present invention; FIG. 8 is a partial view of FIG. 7, illustrating the second FIG. 9 is another perspective view of FIG. 7 illustrating the second preferred embodiment; FIG. 10 is a partial view of FIG. 9 illustrating the backstop mechanism of the second preferred embodiment Figure 11 is a cross-sectional view showing the action of a backstop mechanism of the second preferred embodiment; Figure 12 is an exploded perspective view showing a third preferred embodiment of the diffuser disk of the present invention; 12 is a partial view illustrating the backstop mechanism of the third preferred embodiment; FIG. 14 is another angle view of FIG. The third preferred embodiment; Figure 15 is a partial view of Figure 14 illustrating the backstop mechanism of the third preferred embodiment; Figure 16 is a cross-sectional view showing the action of a backstop mechanism of the third preferred embodiment.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIGS. 1 through 6, a first preferred embodiment of the diffuser disk 100 of the present invention includes a base 1, a diffusing mechanism 2, and a backstop mechanism 3.

The base 1 has an upper surface 11, a lower surface 12, an air guiding channel unit 13, an air outlet unit 14, and a mounting slot 15. The air guiding channel unit 13 is recessed by the upper surface 11 and includes a central recess 131, a plurality of radiating channels 132 radially extending from the central recess 131 to the upper surface 11, and a plurality of The central recess 131 is an annular channel 133 centered at a concentric circle and intersecting the radiating channels 132. The radiating channels 132 and the annular channels 133 together form an interlaced air guiding network. The air outlet unit 14 includes a plurality of air outlet holes 141 formed at the central recess 131 and penetrating the upper and lower surfaces 11, 12, respectively. The mounting groove 15 is recessed by the lower surface 12 and is positioned corresponding to the central groove 131.

The air diffusing mechanism 2 is fixed on the upper surface 11 of the base 1 and includes a diffusing film 21 covering the upper surface 11 and densely covering the micropores, a supporting net 22 covering the diffusing film 21, and a The air diffusion sheet 21 and the circumferential side of the support net 22 are pressed to fix the air diffusion sheet 21 and the ring cover 23 of the support mesh 22. The support net 22 is interposed between the ring cover 23 and the diffuser 21 and has a certain The rigidity is pressed against the support of the air diffusion sheet 21. In this embodiment, the ring cover 23 is fixedly coupled to the base 1 in a screw-locking manner, and the air diffusion piece 21 and the support net 22 are sandwiched and fixed. The air diffusion sheet 21 may be a plastic film having a fine perforation, and the plastic film may be made of, for example, Nylon, PET, PP, PTFE or the like; or the air diffusion sheet 21 may be a non-woven fabric, and the basis weight is preferably 100 gsm or more. The material can be PE, PP, ABS, PET, Nylon, etc. The support net 22 may be made of a material such as PE, PP, PET, Nylon, PVC, PS, PC or the like, or a wire formed of a metal coated with the above materials, and has a wire diameter of 0.1 mm or more.

The backstop mechanism 3 is coupled to the base 1 and includes a connecting unit 31 and a one-way stopping unit 32. The connecting unit 31 is connected to the lower surface 12 of the base 1 and has a position corresponding to the air outlet unit 14 and has a hollow tube portion 311 for connecting to a gas pipe 4, and a periphery of the hollow tube portion 311. And close to the fixing portion 312 at the end edge. The fixing portion 312 is received in the mounting groove 15 and fixed to the base 1 in a screw-lock manner. The hollow tube portion 311 defines a passage 313 and the passage 313 communicates with the air outlets 141 to form an air outlet passage. The one-way stop unit 32 is floatingly disposed in the air outlet passage. Specifically, in the embodiment, the base 1 further has a through hole 16 formed at the central groove 131 and penetrating the upper and lower surfaces 11, 12, and the position of the through hole 16 corresponds to the hollow tube portion. The axis of the 311. The one-way stop unit 32 includes a floatable stop member 321 having a plate body 3211 received in the central recess 131 and a plug post 3212 connected to the plate body 3211. The plate body 3211 covers the air outlet holes 141. The plug posts 3212 extend through the through holes 16 and extend into the hollow pipe portion 311.

When the gas pipe 4 is ventilated, the gas passes through the passage 313 of the hollow pipe portion 311 and pushes the plate body 3211 of the stopper member 321 through the air outlet holes 141, so that the plate body 3211 floats to open the gas outlet. The passage, that is, the plate body 3211 is floated and spaced apart from the air outlets 141, so that gas can flow out of the air outlet holes 141 and enter the air guiding channel unit 13, and the gas is diffused by the air guiding channel unit 13. The gas is more evenly distributed on the upper surface 11 of the susceptor 1 and then bubbles are formed by the diffuser sheet 21. The air guiding channel unit 13 can disperse the gas to prevent the gas pressure from being concentrated on the central region of the air diffusing sheet 21, and the risk of deformation of the air diffusing sheet 21 can be reduced. Further, the supporting mesh 22 is pressed against the supporting air. The sheet 21 can further prevent the deformation of the air diffusing sheet 21, thereby maintaining the preferable effect of the air diffusing sheet 21 to refine the air bubbles. When the air pipe 4 is not ventilated, the thrust that supports the floating of the plate body 3211 disappears, and the plate body 3211 is hydraulically pressed against the base 1 and covers the air outlet holes 141 to close the air outlet passage, so that the liquid cannot be closed. The gas outlets 141 enter the gas outlet passage, so that liquid can be prevented from flowing into the gas delivery pipe 4. Since the plug post 3212 of the stopper member 321 is cylindrical and protrudes from the plate body 3211, it can be linearly lifted along the wall surface defining the through hole 16, and the plate body 3211 can be positioned by the surrounding wall defining the central groove 131, so that the plate body The 3211 can be flatly attached to the surface of the susceptor 1 to effectively prevent liquid from leaking into the vent holes 141. The backstop mechanism 3 of the present embodiment can achieve a better effect of preventing liquid from entering the gas delivery pipe 4, as compared with the case where the check valve having a tapered shape of the general diffuser disk is not easy to seal the air outlet.

Referring to FIG. 7 to FIG. 11, the second preferred embodiment of the diffuser disk 100 of the present invention is substantially the same as the first preferred embodiment. However, in the second preferred embodiment, the one-way stop unit 32 further includes Connected to the plug 3212 An elastic plug block 322 having a tip end and a tapered shape, and a ring 323 fixed in the hollow tube portion 311. The elastic plug block 322 is interlocked with the stopper 321 and can be made of, for example, rubber material to have elasticity. The outer circumference of the ring 323 is provided with a thread, and the inner wall surface of the hollow tube portion 311 is provided with a matching thread, and the ring 323 is screwed and fixed in the hollow tube portion 311. The ring 323 defines a communication hole 3231, that is, the communication hole 323 is a part of the channel 313. The elastic plug block 322 is located between the base 1 and the ring 323 and abuts against the ring 323 when the air pipe 4 is not ventilated, and blocks the communication hole 3231 to block the passage 313. Thereby, it is further ensured that the liquid does not enter the gas pipe 4. When the gas pipe 4 is ventilated, the elastic plug block 322 is lifted by the gas to leave the ring 323, and the gas can flow to the air holes 141. In this embodiment, the ring 323 and the hollow tube portion 311 are separately formed and then combined. In an equivalent embodiment, a portion of the hollow tube portion 311 may be formed into a thicker wall. A portion of the passage 313 can be made narrower (corresponding to the communication hole 323). Thus, the elastic plug block 322 can abut against the thicker wall of the hollow tube portion 311, that is, the passage 313 can be blocked.

Referring to FIG. 12 to FIG. 16, the third preferred embodiment of the diffuser disk 100 of the present invention is substantially the same as the second preferred embodiment. However, in the third preferred embodiment, the one-way stop unit 32 is not included. The stopper 321 is provided, and the base 1 does not have the through hole 16. However, the one-way stop unit 32 further includes a resisting member 324 and an elastic member 325 disposed in the hollow tube portion 311. The abutting member 324 is coupled to the elastic plug block 322 and is coupled to the elastic plug block 322. The elastic member 325 is disposed between the base 1 and the abutting member 324 and applies a bias voltage to the abutting member 324. So that the elastic plug block 322 is constantly blocking the channel 313. The location moves. That is, when the air pipe 4 is ventilated, the elastic plug 322 is pushed away from the ring 323, and the elastic block 322 interlocks the abutting member 324, so that the abutting member 324 presses the elastic member 325. In the embodiment, the elastic member 325 is a compression spring, and the elastic restoring force is accumulated when being squeezed. When the air delivery tube 4 is not ventilated, the elastic plug block 322 is deformed by the thrust of the gas and is elastically recovered by the elastic member 325. The force acts on the ring 323 and abuts against the ring 323. Thus, the elastic block 322 can tightly close the communication hole 3231 and block the passage 313, thereby effectively preventing liquid from entering the gas pipe 4.

In summary, the gas guiding channel unit 13 can disperse the gas to prevent the gas pressure from being concentrated on the central region of the diffusing film 21, thereby reducing the risk of deformation of the diffusing sheet 21, and further, pressing by the support net 22 By supporting the air diffusion sheet 21, it is possible to further prevent the deformation of the air diffusion sheet 21, thereby maintaining the preferable effect of refining the air bubbles by the air diffusion sheet 21. Moreover, the backstop mechanism 3 can surely close the outlet passage to achieve a better effect of preventing liquid from entering the gas delivery pipe 4.

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

100‧‧‧Distribution plate

1‧‧‧Base

11‧‧‧ upper surface

13‧‧‧air guiding channel unit

131‧‧‧Central groove

132‧‧‧radiation channel

133‧‧‧Circular channel

14‧‧‧Exhaust unit

141‧‧‧ Vents

16‧‧‧Perforation

2‧‧‧Dispersing agency

21‧‧‧Dispersible film

22‧‧‧Support net

23‧‧‧ ring cover

31‧‧‧ Connection unit

311‧‧‧ hollow tube department

312‧‧‧ Fixed Department

313‧‧‧ channel

32‧‧ unidirectional stop unit

321‧‧‧stops

4‧‧‧ gas pipeline

Claims (10)

An air diffusing disc comprising: a base having an upper surface, a lower surface, an air guiding channel unit and an air outlet unit, wherein the air guiding channel unit is recessed from the upper surface and includes a central recess, and a plurality of radiating channels extending radially from the central recess to the upper surface, the air outlet unit includes a plurality of air outlet holes formed in the central recess and respectively extending through the upper and lower surfaces; a air diffusing mechanism Fixing on the upper surface of the base, and comprising a diffusing film covering the upper surface and densely covering the micropores and a ring cover pressed against the circumferential side of the diffusing film to fix the diffusing film; and a check mechanism coupled to the base and including a connecting unit and a one-way stopping unit, the connecting unit is coupled to the lower surface of the base and corresponding to the air outlet unit, and has a hollow tube portion Connecting a gas pipe, the hollow pipe portion defines a passage and the passage communicates with the air outlet holes to form an air outlet passage, wherein the one-way stop unit is floatingly disposed on the air outlet passage, and Opening the gas outlet when the gas pipe is ventilated And closing the air passage when the venting is not the pipeline. The air diffusing disk according to claim 1, wherein the air guiding channel unit further comprises a plurality of annular channels arranged at a concentric circle centering on the central groove and intersecting the radiation channels. The radiation channels together with the annular channels form an interlaced gas guiding network. The air diffusing disc of claim 1, wherein the air diffusing mechanism further comprises a support net covering the air diffusing piece and interposed between the ring cover and the air diffusing piece, the supporting net having a certain rigidity Pressing to support the diffuser. The diffuser disk of claim 1, wherein the base further has a through hole formed in the central groove and penetrating the upper and lower surfaces, and the piercing position corresponds to an axis of the hollow pipe portion, The one-way stop unit includes a floatable stop member, and the stop member has a plate body received in the central groove and a plug connected to the plate body, the plate body covering the air outlet holes The plug is inserted through the through hole and protrudes into the hollow tube portion. The diffuser disk of claim 4, wherein the one-way stop unit further comprises a resilient plug connected to the end of the plug, the resilient plug interlocking with the stop and blocking the passage. The air venting plate of claim 5, wherein the one-way blocking unit further comprises a ring fixed in the hollow tube portion, the ring defines a communicating hole, and the elastic plug is located at the base The passage is blocked between the plug ring and when the gas pipe is not vented to block the passage. The diffuser disk of claim 1, wherein the one-way stop unit comprises a resilient plug block that is floatably disposed within the hollow tube portion to block the passage when the gas pipe is not vented. The air-distributing disk of claim 7, wherein the one-way blocking unit further comprises a resisting member and an elastic member disposed in the hollow tubular portion, the abutting member being connected to the elastic plug and The elastic plug is interlocked, and the elastic member is disposed between the base and the abutting member and applies a bias to the abutting member to move the elastic plug block to a position blocking the passage. The air venting plate of claim 8, wherein the one-way blocking unit further comprises a ring fixed in the hollow tube portion, the ring defines a communication hole, and the elastic plug block is located at the damper Between the piece and the ring and at the gas When the tube is not ventilated, the communication hole is blocked to block the passage. The air diffusing disc of claim 1, wherein the base further has a mounting groove formed by the lower surface recessed portion, and the connecting unit of the backstop mechanism further has a periphery surrounding the hollow tube portion and is close to a fixing portion at the edge, the fixing portion is received in the mounting groove and fixed to the base.