阅读说明：本技术 一种微孔盘式曝气器 (Microporous disc type aerator ) 是由 凌明 黄强 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种微孔盘式曝气器,包括有支撑座和曝气盘,曝气盘内设有气腔,曝气盘的盘面上设有若干气孔,曝气盘的盘面上包覆有具有微孔的膜片,所述曝气盘的盘面中部插有立柱,立柱上端固定有挡盘,挡盘的面积大于曝气盘盘面的面积且位于曝气盘正上方,所述膜片的环状膜片,环状膜片的内侧和外侧分别固定在曝气盘上,所述曝气盘盘面上的气孔位于环状膜片下方。本发明的微孔盘式曝气器,能够有效的防止污泥沉淀在膜片造成微孔堵塞。在曝气时也能够对微气泡形成引导,减少缩颈现象,提高微气泡上升发散面积,保证充氧转移效率。(The invention discloses a microporous disk aerator which comprises a supporting seat and an aeration disk, wherein an air cavity is arranged in the aeration disk, a plurality of air holes are formed in the disk surface of the aeration disk, a microporous membrane is coated on the disk surface of the aeration disk, a stand column is inserted in the middle of the disk surface of the aeration disk, a baffle disk is fixed at the upper end of the stand column, the area of the baffle disk is larger than that of the disk surface of the aeration disk and is positioned right above the aeration disk, the inner side and the outer side of an annular membrane of the membrane are respectively fixed on the aeration disk, and the air holes in the disk surface of the aeration disk are positioned below the annular membrane. The microporous disc aerator can effectively prevent sludge from precipitating on the membrane to cause micropore blockage. The micro-bubble aeration device can guide micro-bubbles during aeration, reduce necking phenomena, improve rising and diverging area of the micro-bubbles and ensure oxygenation transfer efficiency.)

1. The utility model provides a micropore disk aerator, is equipped with the air cavity including supporting seat and aeration dish in the aeration dish, is equipped with a plurality of gas pockets in the quotation of aeration dish, and the cladding has the micropore diaphragm in the quotation of aeration dish, its characterized in that, the quotation middle part of aeration dish has inserted the stand, and the stand upper end is fixed with the fender dish, and the area of fender dish is greater than the area of aeration dish quotation and is located directly over the aeration dish, the cyclic annular diaphragm of diaphragm, the inboard and the outside of cyclic annular diaphragm are fixed respectively on the aeration dish, the gas pocket in the aeration dish quotation is located cyclic annular diaphragm below.

2. The microporous disc aerator of claim 1, wherein the lower surface of said baffle disc is downwardly convex to form a conical surface.

3. The microporous disc aerator of claim 2 wherein the conical surface of said baffle is lined with triangular protrusions.

4. The microporous disc aerator of claim 1, wherein the baffle disc is provided with a cylindrical baffle cloth, one end of the cylindrical baffle cloth is provided with an upper opening, the other end of the cylindrical baffle cloth is provided with a lower opening, the periphery of the upper opening is fixedly connected with the periphery of the baffle disc, the periphery of the lower opening is connected with the periphery of the lower end of the upright post, and a circle of through holes are arranged on the cylindrical baffle cloth at a position close to the upper opening.

5. The microporous disc aerator of claim 4, wherein the height of the cylindrical cloth is greater than the sum of the length of the vertical posts and the radius of the disc surface of the aeration disc.

6. The microporous disc aerator of claim 4, wherein said cylindrical baffle is made of a non-air permeable cloth.

7. The microporous disc aerator of claim 1, wherein the lower ends of the posts are threadedly connected to the middle of the disc surface of the aeration disc.

Technical Field

The invention belongs to the technical field of aerators, and particularly relates to a microporous disc type aerator.

Background

The microporous disk aerator is a latest aeration device developed in the 80 s. The device has the advantages of small diameter of aeration bubbles, small diameter of a gas-liquid interface, large area of the gas-liquid interface, uniform bubble diffusion and strong corrosion resistance. The method is widely applied to sewage treatment processes in industries such as petrifaction, printing and dyeing, spinning, food, brewing, tanning, pharmacy, papermaking, coking, steel mill, power plant and the like. Present micropore disk aerator all is quotation up when using, and when the aerator did not use, can cover the quotation after the particulate matter in the sewage deposits, causes the micropore to block up, and the microbubble of current aerator production easily receives water pressure influence (especially in the deep water) to cause radial compression (commonly known as the necking down) rising in-process, especially major diameter aerator, and this kind of necking down phenomenon is just more serious. The aeration device is provided with a plurality of aeration holes, so that the rising diffusion area of bubbles is reduced, and the bubbles are polymerized into large bubbles due to compression and collision in the rising process, which influence the oxygenation transfer efficiency of the aerator and reduce the effective contact of steam and water.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a micropore disk aerator, is equipped with the air cavity including supporting seat and aeration dish in the aeration dish, is equipped with a plurality of gas pockets in the quotation of aeration dish, and the cladding has the micropore diaphragm in the quotation of aeration dish, the quotation middle part of aeration dish has inserted the stand, and the stand upper end is fixed with the fender dish, and the area that keeps off the dish is greater than the area of aeration dish quotation and is located directly over the aeration dish, the cyclic annular diaphragm of diaphragm, the inboard and the outside of cyclic annular diaphragm are fixed respectively on the aeration dish, the gas pocket in the aeration dish quotation is located cyclic annular diaphragm below.

Preferably, in the above technical solution, a lower surface of the blocking disc protrudes downward to form a tapered surface.

Preferably, the conical surface of the baffle disc is fully distributed with triangular bulges.

Preferably, the blocking disc is provided with a cylindrical blocking cloth, one end of the cylindrical blocking cloth is an upper opening, the other end of the cylindrical blocking cloth is a lower opening, the periphery of the upper opening is fixedly connected with the periphery of the blocking disc, the periphery of the lower opening is connected with the periphery of the lower end of the upright post, and a circle of through hole is formed in the position, close to the upper opening, of the cylindrical blocking cloth.

Preferably, in the above technical solution, the height of the cylindrical cloth is greater than the sum of the length of the upright post and the radius of the disc surface of the aeration disc.

Preferably, in the above aspect, the cylindrical patch is made of a non-air-permeable fabric.

Preferably, the lower end of the upright post is in threaded connection with the middle of the disc surface of the aeration disc.

The invention has the beneficial effects that: the microporous disc aerator can effectively prevent sludge from precipitating on the membrane to cause micropore blockage. The micro-bubble aeration device can guide micro-bubbles during aeration, reduce necking phenomena, improve rising and diverging area of the micro-bubbles and ensure oxygenation transfer efficiency.

Drawings

FIG. 1 is a schematic view of the microporous disk aerator of the present invention in an inoperative condition;

fig. 2 is a schematic view of the operation of the microporous disk aerator of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, a microporous disk aerator comprises a supporting base 1 and an aeration disk 2, wherein an air cavity 3 is arranged in the aeration disk 2, a plurality of air holes 4 are arranged in the disk surface of the aeration disk 2, a microporous membrane 5 is coated on the disk surface of the aeration disk 2, a vertical column 6 is inserted in the middle of the disk surface of the aeration disk 2, a baffle disk 7 is fixed at the upper end of the vertical column 6, the area of the baffle disk 7 is larger than the area of the disk surface of the aeration disk 2 and is positioned right above the aeration disk 2, the inner side and the outer side of the annular membrane of the membrane 5 are respectively fixed on the aeration disk 2, and the air holes 4 in the disk surface of the aeration disk 2 are positioned below the. The micro bubble flow cross section liquid level that annular membrane aeration produced is cyclic annular, and the centre is rivers, can effectively reduce the water pressure difference around like this, and the rivers clamp between fender dish 7 and aeration dish 2 in the middle of the cyclic annular microbubble stream 12, receives the raising effect of part microbubble, and its pressure to cyclic annular microbubble stream 12 is greater than cyclic annular microbubble stream water pressure around, makes cyclic annular microbubble stream 12 radius expand finally, further reduces the necking down phenomenon of cyclic annular microbubble stream 12.

Further, the lower surface of the baffle disc 7 is convex downward to form a conical surface. The conical surface can form a flow guiding effect.

Furthermore, triangular bulges are fully distributed on the conical surface of the baffle disc 7, and the triangular bulges form the function of cutting bubbles.

Or, a cylindrical blocking cloth 8 is installed on the blocking disc 7, one end of the cylindrical blocking cloth 8 is set as an upper opening 9, the other end of the cylindrical blocking cloth 8 is set as a lower opening 10, the periphery of the upper opening 9 is fixedly connected with the periphery of the blocking disc 7, the periphery of the lower opening 10 is connected with the periphery of the lower end of the upright post 6, and a circle of through hole 11 is arranged on the cylindrical blocking cloth 8 close to the upper opening 10. The cylindrical blocking cloth 8 is raised in the ascending process of the annular micro-bubble flow 12 to form a conical flow guide surface, water flow can enter and exit the cylindrical blocking cloth 8 through the through holes 11, the phenomenon that the pressure difference between the inside and the outside of the cylindrical blocking cloth 8 is too large, the cylindrical blocking cloth 8 swings after being raised is prevented, and the flow guide effect is improved.

Further, the height of the cylindrical blocking cloth 8 is larger than the sum of the length of the upright post 6 and the radius of the disc surface of the aeration disc 2. Thus, when not in work, the cylindrical blocking cloth 8 covers the diaphragm 5 by means of self weight and the negative pressure fit on the aeration disc 2, and prevents the diaphragm 5 from being blocked by sludge deposition.

Further, the cylindrical barrier cloth 8 is made of a non-air-permeable cloth.

Further, the lower end of the upright post 6 is in threaded connection with the middle of the disc surface of the aeration disc 2.

It should be noted that the technical features of the support base 1, the aeration disc 2, the membrane 5, etc. related to the present invention patent application should be regarded as the prior art, the aeration disc 2 is internally provided with the air chamber 3, the disc surface of the aeration disc 2 is provided with a plurality of air holes 4, the disc surface of the aeration disc 2 is coated with the membrane 5 having micro holes, the specific structure and the working principle of the technical features, and the control mode and the space arrangement mode which may be related to adopt the conventional selection in the field, and should not be regarded as the invention point of the present invention patent, and the present invention patent is not further specifically described in detail.

Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.