CN216236452U

CN216236452U - Ozone advanced oxidation water treatment equipment

Info

Publication number: CN216236452U
Application number: CN202123001148.1U
Authority: CN
Inventors: 熊向阳; 陈刚; 王候兵; 国瑞峰; 李强
Original assignee: China Urban Construction Design and Research Institute Co Ltd
Current assignee: China Urban Construction Design and Research Institute Co Ltd
Priority date: 2021-04-06
Filing date: 2021-12-02
Publication date: 2022-04-08
Anticipated expiration: 2031-12-02
Also published as: CN114057329A

Abstract

The utility model provides an ozone advanced oxidation water treatment device, which comprises a reactor shell, wherein the bottom of the reactor shell is connected with a water inlet distribution pipe with a pipeline mixer and a gas inlet distribution pipe with an aeration head; the guide cylinder is arranged in the reactor shell, and a mixed liquid reflux area is arranged between the guide cylinder and the reactor shell; the lower part of the guide cylinder is provided with a supporting pore plate, a modular first catalyst packing layer, a modular second catalyst packing layer and a modular adsorption packing layer are sequentially arranged above the supporting pore plate to respectively form a first catalytic reaction area, a second catalytic reaction area and an adsorption bed area, and the water inlet distribution pipe and the air inlet distribution pipe are positioned below the supporting pore plate; and tail gas is gathered above the clear water outlet area, and the tail gas which is not consumed by reaction is conveyed to a gas reflux pump from a tail gas outlet and flows back to the bottom of the reactor after being pressurized. The utility model discloses an equipment structure is compact, and is efficient, area is little, and the operation is maintained conveniently, uses in a flexible way, uses extensively, goes out water stability, and comprehensive usability is strong.

Description

Ozone advanced oxidation water treatment equipment

Technical Field

The utility model relates to the field of water treatment, in particular to an ozone advanced oxidation water treatment device.

Background

In recent years, much research is carried out on the aspect of treatment of persistent high-concentration wastewater difficult to degrade domestically and abroad, wherein the advanced oxidation method is distinguished in the past twenty years by the huge potential and unique advantages. Compared with the water treatment method, the advanced oxidation method has the following characteristics: (1) generating a large number of very reactive hydroxyl radicals HO, the oxidizing power of which (2.80V) is second only to fluorine (2.87V), which can be used as an intermediate product of the reaction to induce the following chain reaction; (2) HO, directly reacting with pollutants in the wastewater without selection to degrade the pollutants into carbon dioxide, water and harmless salt, and generating no secondary pollution; (3) since it is a physical-chemical treatment process, it can be easily controlled to meet the treatment requirements and can even degrade 10^-9A contaminant of a stage; (4) the method can be used for independent treatment and can be matched with other treatment processes, for example, the method can be used for pretreatment and pretreatment of biochemical treatment, and the treatment cost can be reduced.

The ozone advanced oxidation method has the advantages of no generation of concentrated solution and other secondary pollutants in the process of degrading organic matters, capability of stably and effectively ensuring that effluent meets effluent standards, less investment, convenience in operation and maintenance and the like, and is widely applied to various advanced oxidation technologies. The complete set of ozone advanced oxidation equipment is produced in large quantities, however, the problems of complex system structure, high energy consumption, large dosage of medicament, low ozone utilization efficiency, waste caused by unavailable tail gas and the like exist in the engineering application process.

Therefore, the development of an advanced oxidation sewage treatment device with less dosage, low energy consumption, simple structure, high ozone utilization efficiency and tail gas utilization is urgently needed.

SUMMERY OF THE UTILITY MODEL

The technical purpose of the utility model is to solve the defects of the prior art and provide the ozone advanced oxidation water treatment equipment which has the advantages of small dosage, low energy consumption, simple structure, high ozone utilization efficiency and tail gas utilization.

The utility model provides a vertical sewage treatment device, which comprises a reactor shell, wherein the bottom of the reactor shell is connected with a water inlet distribution pipe with a pipeline mixer and a gas inlet distribution pipe with an aeration head; the guide cylinder is arranged in the reactor shell, and a mixed liquid reflux area is arranged between the guide cylinder and the reactor shell; the lower part of the guide cylinder is provided with a supporting pore plate, a modular first catalyst packing layer, a modular second catalyst packing layer and a modular adsorption packing layer are sequentially arranged above the supporting pore plate to respectively form a first catalytic reaction area (II), a second catalytic reaction area and an adsorption bed area, and the water inlet distribution pipe and the air inlet distribution pipe are positioned below the supporting pore plate; and tail gas is gathered above the clear water outlet area, and the tail gas which is not consumed by reaction is conveyed to a gas reflux pump from a tail gas outlet and flows back to the bottom of the reactor after being pressurized.

As a preferred embodiment, the first catalytic reaction zone, the second catalytic reaction zone and the adsorption bed zone sequentially comprise a coarse-grain-size pebble packing layer, a fine-grain-size pebble packing layer and corresponding packing from bottom to top, and form a modular assembly through an external structure, and the modular assembly can be hoisted into the guide cylinder.

As a preferred embodiment, the air inlet distribution pipe is arranged above the water inlet distribution pipe, an aeration head is arranged on the air inlet distribution pipe, and the air inlet distribution pipe passes through the guide cylinder and enters the guide cylinder. The air inlet distribution pipe is connected with an ozone inlet pipe of an external gas check valve. Ozone gas enters the equipment through an ozone inlet pipe, an air inlet one-way valve, an air inlet distribution pipe and an aeration head.

In a preferred embodiment, a defoaming filler is arranged above the guide shell in the reactor shell to form a filler defoaming area; a mixing ascending area is arranged between the filler defoaming area and the adsorption bed area, a clear water outlet area is arranged above the filler defoaming area, and the water outlet mode adopts the water outlet of an overflow water outlet groove.

In a preferred embodiment, the overflow water outlet tank is connected to the reactor shell, and a clear water outlet pipe is welded to the reactor shell and is communicated with the overflow water outlet tank. The top of the reactor shell is provided with a breather valve, a top cover plate and the tail gas outlet;

in a preferred embodiment, the exhaust gas outlet is further connected to an exhaust gas discharge pipe for directly discharging the exhaust gas out of the reactor shell in an emergency situation. The side wall of the reactor shell can be also provided with an upper manhole and a lower manhole; the bottom of the side wall is provided with a vent hole which is connected with a vent valve and a vent pipe.

Further preferably, the side wall of the reactor shell is provided with a return port, and the return port is connected with the raw water inlet pump through a pipeline.

The utility model has the beneficial effects that:

the utility model adopts a vertical structure, provides internal reflux and external reflux for mixed liquid, increases the contact time of ozone gas and raw water, thereby reducing energy consumption, reducing the dosage of medicament and ozone and improving the utilization efficiency of ozone, and is explained by the following aspects:

(1) the utility model can achieve good mixing effect of the medicament, ozone gas and raw water without adopting a mechanical stirring device, and reduces energy consumption.

(2) The mixed liquid flows back to the water inlet mixing area through the drainage of the guide cylinder and the outer return pipe, the retention time of the ozone gas is prolonged, the reaction is more complete, and favorable conditions are provided for the ozone to oxidize and decompose pollutants in the sewage.

(3) The catalyst filler and the adsorption filler are arranged in a modular mode, and the guide cylinder is arranged in the reactor shell, so that the replacement and hoisting of the filler are facilitated. The top cover plate is arranged at the top, and when the filler is installed or replaced, the cover plate is opened to hoist, so that the structure is simple and the operation is convenient.

(4) The top of the reactor is provided with a tail gas discharge port, gas which is not consumed by reaction is discharged through the tail gas discharge port, and the discharged gas is pressurized by a gas reflux pump and then returns to the equipment for reuse, so that the ozone utilization rate is maximized. Under the emergency condition, gas which is not consumed by reaction can be discharged through a tail gas discharge pipe and is discharged after being treated by a tail gas treatment device. In the gas circulation process, the gas at the top in the tank body is pumped away, so that negative pressure is possibly high, and a breathing valve is arranged to adjust the internal pressure, so that the equipment can stably and efficiently run.

(5) Set up the line mixer in the inlet channel, but the medicament passes through the line mixer high efficiency and mixes, strengthens the utilization effect of medicament.

(6) The water inlet and distribution pipe adopts a perforated pipe, the opening direction is downward, the retention time of sewage at the bottom of the equipment is increased, the dosing agent provides longer reaction time, and the maximum effect is exerted.

(7) The device adopts a vertical structure, and can be realized by increasing the height of the equipment when the processing capacity is increased, thereby effectively saving the occupied area.

Drawings

FIG. 1 is a schematic structural view showing an embodiment of an advanced ozonation water treatment apparatus according to the present invention.

The system comprises a reactor shell, a breather valve, a clear water outlet pipe, a clean water outlet pipe, an external reflux pipe, a guide cylinder, an adsorption packing layer, a second catalyst packing layer, a first catalyst packing layer, a pipeline mixer, a water inlet distribution pipe, an air inlet distribution pipe, a gas inlet distribution pipe, an aeration head, a vent valve, a vent pipe, a gas inlet check valve, a manhole, a gas reflux pump, a coarse-grain-diameter pebble packing layer, a fine-grain-diameter pebble packing layer, a defoaming packing, a 21 overflow water outlet tank, a top cover plate, a tail gas outlet, a 24 ozone inlet pipe, a 25 inlet pump, a raw water inlet pipe, a 26 raw water inlet pipe, a 27 medicine adding pipe, a 28 supporting perforated plate, a 29 water inlet pre-buried pipe, a 30 vent hole, and a tail gas discharge pipe, wherein the reactor shell, the breather valve, the clear water outlet pipe, the pipeline mixer, the aeration head, the vent pipe and the tail gas discharge pipe are sequentially arranged in a pipeline mixer. I-water inlet mixing zone, II-first catalytic reaction zone, III-second catalytic reaction zone, IV-adsorption bed zone, V-mixing ascending zone, VI-filler defoaming zone, VII-clear water outlet zone, VIII-tail gas gathering zone and IX-mixed liquid reflux zone.

Detailed Description

The following detailed description of embodiments of the utility model, but the utility model can be practiced in many different ways, as defined and covered by the claims.

The vertical sewage treatment apparatus shown in fig. 1 includes: the bottom of the reactor shell 1 is connected with an inlet water distribution pipe 10 with a pipeline mixer 9 and an inlet air distribution pipe 11 with an aerator 12, and the inlet water distribution pipe and the inlet air distribution pipe and the inlet pump 25 form a water inlet device; the reactor shell 1 is internally provided with a guide shell 5, and the bottom of the guide shell is provided with a supporting orifice plate 28; a mixed liquid reflux area I is arranged between the guide shell 5 and the reactor shell 1; a supporting pore plate 28 is arranged at the lower part of the guide cylinder 1, and a modular first catalyst packing layer 8, a modular second catalyst packing layer 7 and a modular adsorption packing layer 6 are sequentially arranged at the upper part of the supporting pore plate 28 to form a first catalytic reaction area II, a second catalytic reaction area III and an adsorption bed area IV; in the reactor shell 1, defoaming filler 20 is arranged at the upper part of the guide shell 5 to form a filler defoaming area VI; the lower part of the filler defoaming area VI is a mixed ascending area V, the upper part of the mixed ascending area V is a clear water outlet area VII, and the water outlet mode adopts the water outlet of an overflow water outlet groove 21; the upper part of the water outlet area is a tail gas gathering area VIII, tail gas which is not consumed by reaction is discharged out of the reactor from a tail gas discharge port 23, is pressurized and flows back to an ozone inlet pipe 24 at the bottom of the reactor through a gas reflux pump 17, and tail gas which is not consumed by reaction in emergency is discharged out of the reactor through a tail gas discharge pipe 31 and is discharged after being treated by a tail gas treatment device; the upper part of the reactor shell 1 is provided with a breather valve 2 and a top cover plate 22; the reactor shell 1 is externally provided with a water outlet 3, a manhole 16, an emptying valve 13, an emptying pipe 14, a water inlet pump 25, a water inlet pipe 26, a dosing pipe 24 and an external reflux port 4.

The water inlet distribution pipe 10 is a perforated pipe with a downward opening, and the water inlet distribution pipe 10 penetrates through the guide shell 5 and enters the guide shell 5. The water inlet and distribution pipe 10 is connected with the water inlet embedded pipe 29, the pipeline mixer 9 and the raw water inlet pump 25 in sequence. Raw water is pumped into the equipment through the water inlet distribution pipe 10 by the raw water inlet pump 25. The pipeline mixer 9 is provided with a dosing port connected with the dosing pipe 27, and the medicament is delivered to the pipeline mixer 9 through the dosing pump to be mixed with raw water and then enters the interior of the equipment.

The air inlet and distribution pipe 11 is arranged above the water inlet and distribution pipe 11, an aeration head 12 is arranged on the air inlet and distribution pipe 11, and the air inlet and distribution pipe 11 penetrates through the guide cylinder 5 and enters the guide cylinder 5. The air inlet distribution pipe 11 is connected with an external air check valve 15 and an ozone inlet pipe 24. Ozone gas enters the equipment through an ozone inlet pipe 24, an air inlet one-way valve 15, an air inlet distribution pipe 11 and an aeration head 12.

The guide shell 5 is arranged inside the equipment shell reactor 1, is arranged concentrically with the shell reactor 1 and is connected with the bottom of the shell reactor 1. A mixed liquid reflux area I is formed between the guide shell 5 and the reactor shell 1, and the bottom of the guide shell 5 is provided with an opening. The top of the guide shell 5 is designed into a gradually expanding structure, and a support perforated plate 28 is arranged at the lower end inside the guide shell 5 and at the upper part of the air inlet distribution pipe 11.

A coarse particle size pebble filler layer 18, a fine particle size pebble filler layer 19 and a first catalyst filler layer 8 are sequentially arranged in the guide shell 5 and above the supporting perforated plate 28, and the three fillers form a modular assembly through an external structure and can be hoisted into the guide shell.

A coarse-particle-size pebble packing layer 18, a fine-particle-size pebble packing layer 19 and a second catalyst packing layer 7 are sequentially arranged in the guide cylinder 5 and above the first catalyst packing layer 8 of the device, and the three types of packing form a modular assembly through an external structure and can be hoisted into the guide cylinder.

A coarse-grain-size pebble packing layer 18, a fine-grain-size pebble packing layer 19 and an adsorption packing 6 are sequentially arranged in the guide shell 5 and above the second catalyst packing 7 of the device, and the three types of packing form a modular assembly through an external structure and can be hoisted into the guide shell 5.

The defoaming filler 20 is arranged in the reactor shell 1 and above the guide shell 5, the defoaming filler 20 is connected with the reactor shell 1, the overflow water outlet groove 21 is arranged above the defoaming filler 20, and the overflow water outlet groove 21 is connected with the reactor shell 1. The clear water outlet pipe 3 is welded on the reactor shell 1 and is communicated with the overflow water outlet groove 21. The top of the reactor shell 1 is provided with a breather valve 2, a top cover plate 22 and a tail gas discharge port 23.

The side wall of the reactor shell 1 is provided with an upper manhole 16 and a lower manhole 16; the side wall of the bottom of the reactor shell 1 is provided with a vent 30 which is connected with a vent valve 13 and a vent pipe 14. The side wall of the reactor shell 1 is provided with an external reflux port 4 which is communicated with the inside of the shell reactor 1. The return port 4 is connected to a raw water intake pump 25 and a water intake line 26 via pipes. The gas reflux pump 17 is arranged between the gas emptying pipe 31 and the ozone inlet pipe 24 and is connected with the gas emptying pipe through a pipeline.

The above-described apparatus is merely a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ozone advanced oxidation water treatment apparatus, comprising:

the bottom of the reactor shell (1) is connected with an inlet water distribution pipe (10) with a pipeline mixer (9) and an inlet air distribution pipe (11) with an aeration head (12);

a guide shell (5) is arranged in the reactor shell (1); a mixed liquid reflux area (IX) is arranged between the guide shell (5) and the reactor shell (1); a supporting pore plate (28) is arranged at the lower part of the guide cylinder (5), a first catalyst packing layer (8), a second catalyst packing layer (7) and an adsorption packing layer (6) are sequentially arranged above the supporting pore plate (28) to respectively form a first catalytic reaction zone (II), a second catalytic reaction zone (III) and an adsorption bed zone (IV), and the water inlet and distribution pipe (10) and the air inlet and distribution pipe (11) are positioned below the supporting pore plate (28);

a tail gas gathering area (VIII) is arranged above the clear water outlet area (VII), and tail gas which is not consumed by reaction is conveyed to a gas reflux pump (17) from a tail gas outlet (23) and flows back to the bottom of the reactor under the pressure increasing effect.

2. The advanced ozonation water treatment device according to claim 1, wherein the water inlet distribution pipe (10) is a perforated pipe with a downward opening, the water inlet distribution pipe (10) passes through the draft tube (5) and enters the inside of the draft tube, the water inlet distribution pipe (10) is sequentially connected with the water inlet pre-embedded pipe (29), the pipeline mixer (9) and the raw water inlet pump (25), and the pipeline mixer is provided with a chemical feeding port connected with the chemical feeding pipe (27).

3. The advanced ozone oxidation water treatment equipment according to claim 1, wherein the air inlet distribution pipe (11) is arranged above the water inlet distribution pipe (10), an aeration head (12) is arranged on the air inlet distribution pipe (11), the air inlet distribution pipe (11) passes through the guide cylinder (5) to enter the guide cylinder, and the air inlet distribution pipe (11) is connected with an external gas check valve (15) and an ozone inlet pipe (24).

4. The ozone advanced oxidation water treatment equipment according to claim 1, wherein the first catalytic reaction zone (II), the second catalytic reaction zone (III) and the adsorption bed zone (IV) sequentially comprise a coarse-grain-size pebble packing layer (18), a fine-grain-size pebble packing layer (19) and corresponding packing (6, 7 and 8) from bottom to top, and form a modular assembly through an external structure, and the modular assembly can be hoisted into a guide cylinder.

5. The ozone advanced oxidation water treatment equipment according to claim 1, characterized in that a defoaming filler (20) is arranged above the guide shell (5) in the reactor shell (1) to form a filler defoaming area (VI); a mixed ascending area (V) is arranged between the filler defoaming area (VI) and the adsorption bed area (IV), a clear water outlet area (VII) is arranged above the filler defoaming area (VI), and the water outlet form adopts the water outlet of an overflow water outlet groove (21).

6. The ozone advanced oxidation water treatment equipment according to claim 5, characterized in that the overflow outlet tank (21) is connected with the reactor shell (1), and a clear water outlet pipe (3) is welded on the reactor shell and is communicated with the overflow outlet tank (21).

7. The ozone advanced oxidation water treatment equipment according to claim 1, characterized in that the top of the reactor shell (1) is provided with a breather valve (2), a top cover plate (22) and the tail gas outlet (23).

8. The ozone advanced oxidation water treatment apparatus according to claim 7, characterized in that the tail gas outlet (23) is further connected with a tail gas discharge pipe (31) for directly discharging the tail gas out of the reactor shell (1) in an emergency situation.

9. The ozone advanced oxidation water treatment equipment according to claim 1, characterized in that the side wall of the reactor shell (1) is provided with an upper manhole (16) and a lower manhole (16); the bottom of the side wall is provided with a vent hole (30) which is connected with a vent valve (13) and a vent pipe (14).

10. The ozone advanced oxidation water treatment equipment as claimed in claim 2, wherein the side wall of the reactor shell (1) is provided with a return port (4), and the return port (4) is connected with the raw water inlet pump (25) through a pipeline.

11. The ozone advanced oxidation water treatment equipment according to claim 8, characterized in that the gas return pump (17) is arranged between the exhaust gas discharge pipe (31) and the ozone inlet pipe (24), and is connected by a pipe.