CN211470844U

CN211470844U - High-efficient dissolved air releaser of air supporting water treatment

Info

Publication number: CN211470844U
Application number: CN201920703541.9U
Authority: CN
Inventors: 鲁巍; 程先进
Original assignee: China Botou Investment Beijing Environmental Technology Co ltd
Current assignee: China Botou Investment Beijing Environmental Technology Co ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-09-11
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses an efficient dissolved air releaser for air floatation water treatment, which consists of a release port, a release area and an inlet area, and is characterized in that the release port consists of a release pipeline, the release area consists of a loose joint nut, a three-hole diaphragm, a first buffer diaphragm, a small-hole diaphragm, a second buffer diaphragm, a large-hole diaphragm and a fixed joint, the loose joint nut is connected with the fixed joint through threads, the three-hole diaphragm, the first buffer diaphragm, the small-hole diaphragm, the second buffer diaphragm and the large-hole diaphragm are sequentially arranged inside the loose joint nut and the fixed joint, and the outer diameter of each diaphragm is the same as the inner diameter of the loose joint nut; the inlet area is composed of a sealing ring and an external thread joint. An object of the utility model is to provide a high-efficient dissolved air releaser of air supporting water treatment to overcome the releaser part that exists among the prior art more, machining precision is high, the structure is complicated, easily block up when using, install when under water maintenance procedure complicated, manufacturing cost and change cost more not enough of waiting.

Description

High-efficient dissolved air releaser of air supporting water treatment

Technical Field

The utility model belongs to the technical field of water treatment, a high-efficient dissolved air releaser of air supporting water treatment is related to.

Background

The pressure dissolved air floatation water treatment process is an efficient water purification treatment technology and is widely applied in China and many industrially developed countries. The water purifying technology introduces a great amount of micro bubbles released from the pressure dissolved air water into the water to be treated, and utilizes the buoyancy of the bubbles adhered to solid impurities to achieve the purposes of high-efficiency and quick separation of solid and liquid and improving the concentration degree of scum.

The dissolved air releaser is a key device in the pressure dissolved air floatation water treatment process, and a large amount of micro bubbles can be released only after the pressure dissolved air water is subjected to pressure reduction and energy dissipation through the device. The performance of the releaser relates to the amount of the released bubbles, the fineness of the bubbles, the distribution law of the sizes of the bubbles and the like, and directly influences the treatment effect of the air-floated water and the consumption of electric energy.

Typical products are TV type and TJ type dispensers, etc. The existing releaser mainly comprises an orifice, a single-hole chamber, a disc, a reed, an octagonal nozzle and other structures, more moving parts, high processing precision, complex structure, easy blockage during use, complex maintenance procedure when being installed underwater, higher production cost and replacement cost, and the whole releaser is required to be replaced integrally.

In chinese patent CN 202924786U, a wide flow channel dissolved air releaser is disclosed, which comprises a circular or square housing, and is characterized in that a plurality of parallel resistance plates are uniformly distributed and fixed on the top end and the inner cavity of the housing, the resistance plates are provided with arc or linear, zigzag, and wave-shaped outlets, each resistance plate is arranged in a left-right staggered manner, and the lower end of the housing is provided with a conical inlet. However, inside a plurality of flaps parallel fixation in the shell in this patent, can't take out, block up easily and be difficult for wasing, if the flap has the damage then can't change, can only change whole releaser, cause the wasting of resources.

In chinese patent CN 203144131U, a laminated dissolved air releaser is disclosed, comprising an orifice joint, an orifice cover plate, and at least one orifice lamination sandwiched therebetween; the orifice joint is a hollow cylinder with an opening at the upper end, the bottom of the orifice joint is provided with more than one water inlet hole, and the water inlet holes are uniformly and annularly distributed along the circumference of the bottom; the pore chamber lamination is annular, a water permeable hole is arranged on the pore chamber lamination and is communicated with the water inlet hole, and the aperture of the water permeable hole is larger than that of the water inlet hole; and the positioning bolt sequentially penetrates through the hole chamber cover plate, the hole chamber lamination and the orifice joint to fix the hole chamber cover plate, the hole chamber lamination and the orifice joint. However, the solution in this patent exposes the cell laminations directly to the outside, which is easily damaged.

Therefore, how to provide a novel dissolved air releaser which has simple structure, low production cost and easy maintenance and cleaning is a difficult point to be solved urgently in the technical field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient dissolved air releaser of air supporting water treatment to overcome the releaser part that exists among the prior art more, machining precision is high, the structure is complicated, easily block up during the use, install maintenance procedure when under water complicated, manufacturing cost and change more become more not enough such as high, and can reach the gas bubble that releases fine and closely, even, the come-up is stable, can prevent effectively that the bubble from breaking and efficient water purification effect.

The utility model discloses a high-efficient dissolved air releaser of air supporting water treatment, by release mouth, release district and import district composition, its characterized in that, the release mouth comprises the release pipeline, the release district comprises loose joint nut, three hole diaphragms, first buffering diaphragm, aperture diaphragm, second buffering diaphragm, macropore diaphragm, fixed joint, the loose joint nut with fixed joint passes through threaded connection, three hole diaphragms, first buffering diaphragm, aperture diaphragm, second buffering diaphragm and macropore diaphragm install inside loose joint nut and fixed joint in proper order, the external diameter of three hole diaphragms, first buffering diaphragm, aperture diaphragm, second buffering diaphragm and macropore diaphragm is the same with the internal diameter of loose joint nut; the inlet area is composed of a sealing ring and an external thread joint.

Further, macropore diaphragm, second buffering diaphragm and aperture diaphragm form first surge chamber, aperture diaphragm, first buffering diaphragm and three aperture diaphragms form the second surge chamber, carry out the second grade and distribute the dissolved air water.

Further, the large-hole diaphragm is provided with a first concentric through hole, the small-hole diaphragm is provided with a second concentric through hole, and the aperture ratio of the first through hole to the second through hole is 3: 1-4: 1.

Furthermore, the first buffer membrane and the second buffer membrane are the same in specification and are provided with a third concentric through hole, and the aperture ratio of the third through hole to the second through hole of the small-hole membrane is 4: 1-5: 1.

Furthermore, the three-hole diaphragm is provided with 3 through holes IV with the same aperture, and the aperture ratio of the through holes IV to the through holes II of the small-hole diaphragm is 1: 1.5-1: 2.5.

Furthermore, the four through holes are uniformly distributed on the circumference of a concentric circle of the three-hole diaphragm.

Furthermore, the distance between the circle center of the through hole IV and the circle center of the three-hole diaphragm is L, and the ratio of the diameter of the L to the diameter of the through hole IV is 2: 1.

Further, the thickness of three hole diaphragms, first buffering diaphragm, aperture diaphragm, second buffering diaphragm, macropore diaphragm equals, and thickness is 0.5 ~ 1.5 mm.

Further, three hole diaphragms, aperture diaphragm, macropore diaphragm are the steel diaphragm, first buffering diaphragm, the material of second buffering diaphragm are rubber, preferably Ethylene Propylene Diene Monomer (EPDM).

Further, the release pipe, the loose joint nut and the external thread joint can be made of hard polyvinyl chloride (UPVC), carbon steel, stainless steel, Polyethylene (PE), High Density Polyethylene (HDPE) and copper, and preferably, the hard polyvinyl chloride (UPVC) is adopted.

The utility model discloses a beneficial effect who reaches as follows:

1. the three-hole diaphragm, the first buffer diaphragm, the second buffer diaphragm, the small-hole diaphragm and the large-hole diaphragm are arranged inside the loose joint nut and the fixed joint, the assembly is simple, the disassembly and the washing are convenient, the outer diameter of each diaphragm is the same as the inner diameter of the loose joint nut, the central error of each assembled component in the release area is extremely small, and the installation is simple, accurate and convenient to overhaul;

2. the inlet area adopts an external thread joint, the release pipe adopts an internal thread joint, the installation and the disassembly are convenient, and the parts are easy to clean and replace;

3. the gas-dissolving water passes through the two-stage buffer chambers and is subjected to extrusion, expansion, re-extrusion, re-expansion and final re-extrusion to form vortex, back mixing, plug flow and partial vacuum, so that the pressure gas-dissolving water quickly reduces pressure and dissipates energy, gas escapes, and tiny dense bubbles are formed in a stable flow state, thereby achieving the effect of efficiently releasing the bubbles and meeting the requirements of the gas-dissolving water for air floatation.

4. The three-hole diaphragm, the small-hole diaphragm and the large-hole diaphragm are made of steel diaphragms, so that the three-hole diaphragm, the small-hole diaphragm and the large-hole diaphragm are not easy to damage, if the three-hole diaphragm, the large-hole diaphragm and the large-hole diaphragm are damaged, only the UPVC shell of the releaser needs to be replaced, the whole releaser. The outer housing of the release is formed of a rigid polyvinyl chloride (UPVC) material to protect the threads of the release tube from damage during installation in the release tube.

Drawings

Fig. 1 is a schematic structural diagram of a wide-flow-channel dissolved air releaser in the prior art.

Fig. 2 is a schematic view of a laminated dissolved air releaser of the prior art.

Fig. 3 is a schematic view of the overall structure of the high-efficiency dissolved air releaser for air flotation water treatment of the utility model.

FIG. 4 is an assembly diagram of the shaft measuring of the high-efficiency dissolved air releaser for air floatation water treatment of the utility model.

Fig. 5 is a schematic view of the sectional structure of the high-efficiency dissolved air releaser for air flotation water treatment of the utility model.

Fig. 6 is an enlarged view at a in fig. 5.

FIG. 7 is a schematic plan view of a large-hole membrane of the high-efficiency dissolved air releaser for air-floated water treatment of the present invention.

FIG. 8 is a schematic plan view of a small-hole diaphragm of the efficient dissolved air releaser for air-floated water treatment of the present invention.

FIG. 9 is a schematic plan view of the first and second buffer membranes of the efficient dissolved air releaser for air flotation water treatment of the present invention.

FIG. 10 is a schematic plan view of a three-hole membrane of the high-efficiency dissolved air releaser for air-floated water treatment of the present invention.

Detailed Description

Fig. 1 is a schematic structural diagram of a wide-flow-channel dissolved air releaser in the prior art, which comprises a circular or square shell (1), and is characterized in that a plurality of parallel resistance plates (2) are uniformly distributed and fixed on the top end and the inner cavity of the shell (1), arc-shaped or linear-shaped, fold-line-shaped and wave-shaped outlets are arranged on the resistance plates (2), the resistance plates are arranged in a left-right staggered manner, and a conical inlet (4) is arranged at the lower end of the shell (1). However, in the patent, the plurality of resistance plates (2) are fixed in the shell (1) in parallel, cannot be taken out, are easy to block and are not easy to clean, and if the resistance plates (2) are damaged, the resistance plates cannot be replaced, and only the whole releaser can be replaced, so that the resource waste is caused.

FIG. 2 is a schematic view of a prior art laminated dissolved air release including an orifice fitting (1), a vent cover plate (3), and three vent laminates (2) sandwiched therebetween; the orifice joint (1) is a hollow cylinder with an opening at the upper end, the bottom of the orifice joint is provided with more than one water inlet hole, and the water inlet holes are uniformly and annularly distributed along the circumference of the bottom; the pore chamber lamination (2) is annular, a water permeable hole is formed in the pore chamber lamination, the water permeable hole is communicated with the water inlet hole, and the aperture of the water permeable hole is larger than that of the water inlet hole; the positioning bolt sequentially penetrates through the hole chamber cover plate, the hole chamber lamination (2) and the orifice joint (1) to fix the three. Gap gaskets (4) are arranged between the adjacent hole chamber lamination sheets (2) and between the hole chamber lamination sheets (2) and the hole chamber cover plate (3), and spring washers (6) are arranged between the positioning bolts (5) and the hole chamber cover plate (3). However, this solution exposes the cell stack directly to the outside, which is easily damaged.

Fig. 3 is a schematic view of the overall structure of the high-efficiency dissolved air releaser for air flotation water treatment of the utility model. The utility model discloses in adopt three hole diaphragms, first buffering diaphragm, aperture diaphragm, second buffering diaphragm and macropore diaphragm to install inside loose joint nut and fixed joint, the screw thread tighten can, the installation simply and accurate, convenient maintenance.

The invention will now be described in further detail with reference to the drawings and examples, wherein the examples are given by way of illustration only and are not intended to limit the invention itself.

Combine the axle of an air supporting water treatment high efficiency dissolved air releaser that figure 4 shows to survey assembly schematic diagram, air supporting water treatment high efficiency dissolved air releaser comprises release mouth (a), release district (b) and import district (c), its characterized in that, release mouth (a) comprises release pipeline (1), release district (b) comprises loose joint nut (2), three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), second buffering diaphragm (6), macropore diaphragm (7), fixed joint (8), import district (c) comprises sealing washer (9) and outer screwed joint (10). Loose joint nut (2) with fixed joint (8) pass through threaded connection, three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), second buffering diaphragm (6) and macropore diaphragm (7) are installed in proper order inside loose joint nut (2) and fixed joint (8), and the screw thread is screwed up can, and the installation is simple. The outer diameter of the three-hole diaphragm (3), the first buffer diaphragm (4), the small-hole diaphragm (5), the second buffer diaphragm (6) and the large-hole diaphragm (7) is the same as the inner diameter of the loose joint nut, so that the central error of each assembled component in the release area (b) is extremely small, and the installation is accurate and convenient to overhaul.

The core of the device is that three steel diaphragms with holes are designed in a release area (b), the steel diaphragms respectively adopt 1 large-hole diaphragm (7), 1 small-hole diaphragm (5) and 3 small-hole three-hole diaphragms (3), and the device is shown in attached figures 5 and 6. after the loose joint nut (2) and the fixed joint (8) are screwed up through threads, the three-hole diaphragms (3), the first buffer diaphragm (4), the small-hole diaphragms (5), the second buffer diaphragm (6) and the large-hole diaphragms (7) are sequentially stacked, arranged and compressed and fixed. Macropore diaphragm (7), second buffering diaphragm (6) and aperture diaphragm (5) form first buffer chamber (b1), aperture diaphragm (5), first buffering touch piece (4) and three hole diaphragms (3) form second buffer chamber (b2), form the second grade and distribute the gas water of dissolving. After the gas-dissolving water passes through 1 macroporous diaphragm (7), the gas enters the first buffer chamber (b1) for distribution and buffering, then enters the small-hole diaphragm (5) with 1 small hole, then enters the second buffer chamber (b2) for secondary distribution and buffering, and finally passes through the three-hole diaphragm (3) with 3 small holes to finally form 20-100 um bubbles, so that the effect of efficiently releasing the bubbles is achieved, and the requirement of the gas-dissolving water for air floatation is met.

Fig. 7, 8, 9, 10 show the planar structure of the three-hole diaphragm (3), the first buffer diaphragm (4), the small-hole diaphragm (5), the second buffer diaphragm (6) and the large-hole diaphragm (7). The large-hole diaphragm (7) is provided with a concentric through hole I (11), the small-hole diaphragm (5) is provided with a concentric through hole II (12), and the aperture ratio of the through hole I (11) to the through hole II (12) is about 3: 1-4: 1.

The first buffer membrane (4) and the second buffer membrane (6) are the same in specification, can be mutually universal by adopting the same specification, and are more convenient to overhaul. The first buffer membrane (4) and the second buffer membrane (6) are provided with a concentric through hole III (13), and the aperture ratio of the through hole III (13) to the through hole II (12) of the small-hole membrane (5) is about 4: 1-5: 1.

The three-hole diaphragm (3) is provided with 3 through holes (14) with the same aperture, and the aperture ratio of the through holes (14) to the through holes (12) of the small-hole diaphragm (5) is about 1: 1.5-1: 2.5, preferably 1:2. The four through holes (14) are uniformly distributed on the circumference of a concentric circle of the three-hole diaphragm (3).

In various embodiments, the actual size of each membrane through hole can be set according to the requirement and the above ratio, such as the following table:

the example value points given in the above list are only part of the data and are not limitations of the invention itself.

The distance between the circle center of the through hole IV (14) and the circle center of the three-hole diaphragm (3) is L, and the aperture ratio of L to the through hole IV (14) is about 2: 1-3: 1, preferably 2: 1. The distance between the three through holes on the three-hole diaphragm (3) is not too close, and if the three through holes are too concentrated, the passing efficiency of the dissolved air water is reduced; if the three through holes are too far away, the three through holes are too dispersed, the water flow is buffered, and tiny and dense bubbles cannot be obtained. When the aperture ratio of L to the fourth through hole (14) is about 2: 1-3: 1, the gas-dissolved water can form vortex, back mixing and local vacuum when passing through the buffer zone, so that the gas-dissolved water forms more tiny and dense bubbles.

The thickness of three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), second buffering diaphragm (6), macropore diaphragm (7) equals, and thickness is about 0.5 ~ 1.5mm, preferred 1 mm.

Three hole diaphragms (3), aperture diaphragm (5), macropore diaphragm (7) are the steel diaphragm, the preferred Ethylene Propylene Diene Monomer (EPDM) of material of first buffer diaphragm (4), second buffer diaphragm (6). The first buffer membrane (4) and the second buffer membrane form two buffer areas respectively, so that the gas-dissolved water can form vortex, back mixing and partial vacuum when passing through the buffer areas, and the gas-dissolved water forms more tiny and dense bubbles; simultaneously, first second buffering diaphragm still comes the steel diaphragm interval, plays the cushioning effect, reduces the impact of rivers, alleviates the wearing and tearing of steel diaphragm. The ethylene propylene diene monomer rubber has excellent oxidation resistance, ozone resistance and erosion resistance, and can prolong the service life of the release pipe. The first buffer membrane and the second buffer membrane can also be made of rubber, silica gel, polyurethane and the like.

The release pipeline (1), the loose joint nut (2) and the external thread joint (10) are preferably made of hard polyvinyl chloride (UPVC). In the engineering, the releaser needs to be arranged in a release pipe, if a steel shell is adopted, the threads of the release pipe are easy to damage due to collision, and the releaser is difficult to maintain; and the hard polyvinyl chloride (UPVC) shell is adopted, so that the threads of the release pipe are protected from being damaged more easily, and only the hard polyvinyl chloride (UPVC) shell of the releaser needs to be replaced without integral replacement. The outer shell of the releaser can also be made of carbon steel, stainless steel, Polyethylene (PE), High Density Polyethylene (HDPE), copper and the like.

The working principle and the working process are as follows: dissolved air water passes through outer screwed joint (10) earlier, rethread macropore diaphragm (7), then through first buffering diaphragm (6), then through aperture diaphragm (5), rethread second buffering diaphragm (4), goes out through three hole diaphragms (3) and finally through release line (1) at last. When the dissolved gas water passes through the channel, the dissolved gas water is extruded, expanded, re-extruded, re-expanded and finally re-extruded to form vortex, back mixing, plug flow and partial vacuum, so that the pressure dissolved gas water can quickly reduce pressure and dissipate energy and the gas can escape, and micro dense bubbles are formed in a stable flow state, thereby achieving the effect of efficiently releasing the bubbles and meeting the requirements of the dissolved gas water for air floatation.

The various combinations and modifications of the technical solutions, advantages and characteristics set forth in the present patent, as well as variations and simple modifications thereof, which constitute the technical solutions disclosed in the present patent, can be considered by those skilled in the art.

Claims

1. The utility model provides a high-efficient dissolved air releaser of air supporting water treatment, comprises release mouth (a), release district (b) and import district (c), a serial communication port, release mouth (a) comprises release pipe way (1), release district (b) comprises loose joint nut (2), three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), second buffering diaphragm (6), macroporous diaphragm (7), fixed joint (8), loose joint nut (2) with fixed joint (8) are through threaded connection, install in proper order inside loose joint nut (2) and fixed joint (8) three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), second buffering diaphragm (6) and macroporous diaphragm (7), three hole diaphragms (3), first buffering diaphragm (4), aperture diaphragm (5), The outer diameters of the second buffer membrane (6) and the large-hole membrane (7) are the same as the inner diameter of the loose joint nut; the inlet area (c) consists of a sealing ring (9) and an external thread joint (10).

2. The efficient dissolved air releaser for air-floated water treatment as claimed in claim 1, wherein the large-pore membrane (7), the second buffer membrane (6) and the small-pore membrane (5) form a first buffer chamber (b1), and the small-pore membrane (5), the first buffer membrane (4) and the three-pore membrane (3) form a second buffer chamber (b2) for two-stage distribution of dissolved air water.

3. The efficient dissolved air releaser for air-floated water treatment as claimed in claim 2, characterized in that said large-pore membrane (7) is provided with a first concentric through hole (11), said small-pore membrane (5) is provided with a second concentric through hole (12), and the ratio of the pore diameters of said first through hole (11) and said second through hole (12) is about 3: 1-4: 1.

4. The efficient dissolved air releaser for air-floated water treatment as claimed in any of claims 1-3, wherein the first buffer membrane (4) and the second buffer membrane (6) have the same specification, and are provided with a concentric third through hole (13), and the ratio of the third through hole (13) to the second through hole (12) of the small-hole membrane (5) is about 4:1 to 5: 1.

5. The efficient dissolved air releaser for air-floated water treatment as claimed in claim 4, wherein said three-hole membrane (3) has 3 through holes (14) with the same aperture, and the ratio of the aperture of said through hole (14) to the aperture of said through hole (12) of the small-hole membrane (5) is about 1:1.5 to 1: 2.5.

6. An efficient dissolved air releaser for air-floated water treatment according to claim 5 characterized in that said four through holes (14) are evenly distributed on the concentric circles circumference of the three-hole membrane (3).

7. The efficient dissolved air releaser for air-floated water treatment as claimed in claim 6, wherein the distance between the center of the four through holes (14) and the center of the three-hole membrane (3) is L, and the ratio of the diameter of L to the diameter of the four through holes (14) is 2: 1.

8. The efficient dissolved air releaser for air flotation water treatment according to any of claims 1-3, characterized in that the three-hole membrane (3), the first buffer membrane (4), the small-hole membrane (5), the second buffer membrane (6) and the large-hole membrane (7) have the same thickness, and the thickness is 0.5-1.5 cm.

9. The efficient dissolved air releaser for air flotation water treatment according to claim 8, characterized in that the three-hole membrane (3), the small-hole membrane (5) and the large-hole membrane (7) are steel membranes, and the first buffer membrane (4) and the second buffer membrane (6) are made of rubber.

10. The efficient dissolved air releaser for air flotation water treatment according to claim 9, characterized in that the material of the release pipe (1), the union nut (2) and the external screw joint (10) is selected from the group consisting of rigid polyvinyl chloride (UPVC), carbon steel, stainless steel, Polyethylene (PE), High Density Polyethylene (HDPE) and copper.

11. The efficient dissolved air releaser for air-floated water treatment as claimed in any of claims 9-10, wherein the materials of said first and second buffer membranes (4, 6) are Ethylene Propylene Diene Monomer (EPDM).