CN112777679A

CN112777679A - Novel sewage treatment device

Info

Publication number: CN112777679A
Application number: CN202110021160.4A
Authority: CN
Inventors: 朱荣生; 陈一鸣; 杨爱玲
Original assignee: Jiangsu Guoquan Pumps Co Ltd
Current assignee: Jiangsu Guoquan Pumps Co Ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-05-11
Anticipated expiration: 2041-01-08
Also published as: CN112777679B

Abstract

The invention provides a novel sewage treatment device, which comprises a water inlet pipe, a front shell, a rear shell, an auxiliary fixing device and a shaftless cavitation bubble flow guide device, wherein the auxiliary fixing device and the shaftless cavitation bubble flow guide device are arranged in a second direct-current section of the shell; the inner cavity of the shaftless cavitation flow guiding device is sequentially provided with a flow guiding first contraction section, a flow guiding direct current section and a flow guiding second contraction section; the guide outer edge plate and the guide vanes form an outer flow passage of the shaftless cavitation bubble guide device. The invention further pressurizes the cavitation bubbles by arranging the shaftless cavitation bubble flow guide device in the cavitator and conveying the cavitation bubbles generated in the cavitator on the premise of not destroying the cavitation bubbles, and the sewage is quickly treated by utilizing the physical and chemical changes generated by collapse of the cavitation bubbles. The application has the advantages of simple structure, convenience in operation and better economic benefit.

Description

Novel sewage treatment device

Technical Field

The invention relates to the field of sewage treatment, in particular to a novel sewage treatment device.

Background

In recent years, with the continuous development of modern industries such as pharmacy, chemical industry, printing and dyeing and the like, the amount of sewage increases year by year, and particularly, the pollution of pollutants to water forms a serious threat to human survival and social development. Meanwhile, the components of the pollutants are more and more complex, and a plurality of defects existing in the traditional sewage treatment methods such as a hydrolysis method, a photocatalytic oxidation method and other physicochemical treatment methods are gradually highlighted along with the more and more complex components of the pollutants. The hydrolysis method has the problems of large acid and alkali consumption, large water resource consumption for further dilution after hydrolysis and the like. The photocatalytic oxidation method has a series of problems such as high chemical cost, complicated reaction apparatus, and high treatment cost, although it has high oxidation efficiency. Macromolecular organic matters and refractory chemical substances contained in organic sewage increase year by year, and the traditional sewage treatment method is difficult to adapt to the current increasingly strict environmental protection requirements, so that the development of a novel sewage treatment method is urgent.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a novel sewage treatment device, a shaftless cavitation bubble flow guide device is arranged in a cavitator to convey cavitation bubbles generated in the cavitator, the cavitation bubbles are further pressurized on the premise of not breaking the cavitation bubbles, and the sewage is quickly treated by utilizing the physical and chemical changes generated by collapse of the cavitation bubbles.

The present invention achieves the above-described object by the following technical means.

A novel sewage treatment device comprises a water inlet pipe, a front shell, a rear shell, an auxiliary fixing device and a shaftless cavitation bubble flow guide device, wherein one end of the front shell is provided with a water inlet section, and the other end of the front shell is provided with the rear shell; the front shell and the rear shell form a whole cavity, and a first contraction section of the shell, a first direct-current section of the shell, a diffusion section of the shell, a second direct-current section of the shell, a second contraction section of the shell and an outflow section are sequentially arranged in the cavity; an auxiliary fixing device and a shaftless cavitation bubble flow guiding device are arranged in the second direct-current section of the shell, and the shaftless cavitation bubble flow guiding device is fixed in the second direct-current section of the shell through the auxiliary fixing device.

Further, an inner flow channel is arranged in a flow guiding inner edge plate of the shaftless cavitation flow guiding device, and a flow guiding first contraction section, a flow guiding direct current section and a flow guiding second contraction section are sequentially arranged in the cavity of the inner flow channel along the flow direction; the guide outer edge plate and the guide vanes of the shaftless cavitation flow guiding device form an outer flow passage of the shaftless cavitation flow guiding device.

Further, supplementary fixing device has included bearing, oil blanket, gland, slide bar, spacing groove, spacing ring, ladder face, the oil blanket sets up in the gland, the gland sets up in the bearing top, the slide bar both ends are provided with the bearing.

Further, the number of sliding bars in the auxiliary fixing device is at least 6.

Furthermore, the slide bar is of a stepped shaft structure and is provided with a stepped surface for positioning the shaftless cavitation bubble flow guiding device.

Further, a limiting groove 405 is formed in the sliding rod, and a limiting ring 406 is arranged in the limiting groove 405.

Further, the number of the guide vanes arranged on the shaftless cavitation flow guiding device is at least 2.

Further, the guide vane structure arranged on the shaftless cavitation flow guiding device can be spiral or quasi-spiral.

The invention has the beneficial effects that:

according to the novel sewage treatment device, the shaftless cavitation bubble flow guide device is arranged in the cavitator, cavitation bubbles generated in the cavitator are conveyed, the cavitation bubbles are further pressurized on the premise of not melting the cavitation bubbles, and the sewage is quickly treated by utilizing physical and chemical changes generated by collapse of the cavitation bubbles. The device has the advantages of simple structure, small occupied space, simplicity in operation, high production efficiency and better economic benefit.

Drawings

FIG. 1 is a schematic structural view of a novel sewage treatment device according to the present invention.

FIG. 2 is a partial schematic view of section I of the present invention.

FIG. 3 is a partial view of the section II according to the present invention.

FIG. 4 is a schematic view of the direction A-A according to the present invention.

In the figure:

1-water inlet pipe; 2-front housing, 201-first housing convergent section, 202-first housing straight section, 203-housing divergent section, 204-second housing straight section, 205-second housing convergent section, 206-outflow section; 3-a rear shell; 4-auxiliary fixing device, 401-bearing, 402-oil seal, 403-gland, 404-slide bar, 405-limit groove, 406-limit ring, 407-step surface; 5-shaftless cavitation bubble flow guide device, 501-flow guide first contraction section, 502-flow guide direct current section, 503-flow guide second contraction section, 504-flow guide outer edge plate, 505-flow guide blade and 506-flow guide inner edge plate.

Detailed Description

The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.

As shown in fig. 1 and 4, the novel sewage treatment device of the present invention comprises a water inlet pipe 1, a front housing 2, a rear housing 3, an auxiliary fixing device 4, and a shaftless cavitation flow guide device 5, wherein one end of the front housing 2 is provided with the water inlet pipe 1, and the other end is provided with the rear housing 3; the front shell 2 and the rear shell 3 form a whole cavity, and a first shell contraction section 201, a first shell direct-current section 202, a shell diffusion section 203, a second shell direct-current section 204, a second shell contraction section 205 and an outflow section 206 are sequentially arranged in the cavity; an auxiliary fixing device 4 and a shaftless cavitation flow guiding device 5 are arranged in the second casing direct current section 204, the shaftless cavitation flow guiding device 5 is fixed in the second casing direct current section 204 through the auxiliary fixing device 4, an inner flow channel is arranged in a flow guiding inner edge plate 506 of the shaftless cavitation flow guiding device, and a flow guiding first contraction section 501, a flow guiding direct current section 502 and a flow guiding second contraction section 503 are sequentially arranged in the cavity of the inner flow channel along the flow direction; the guide outer edge plate 504 and the guide vane 505 of the shaftless cavitation flow guiding device form an outer flow passage of the shaftless cavitation flow guiding device.

As shown in fig. 2 and 3, the auxiliary fixing device includes a bearing 401, an oil seal 402, a gland 403, a sliding rod 404, a limiting groove 405, a limiting ring 406, and a stepped surface 407, the oil seal 402 is disposed in the gland 403, the gland 403 is disposed above the bearing 401, and the bearings 401 are disposed at two ends of the sliding rod 404. The sliding rod 404 is of a stepped shaft structure and is provided with a stepped surface 407 for positioning the shaftless cavitation flow guiding device 5. The slide bar 404 is provided with a limiting groove 405, and a limiting ring 406 is arranged in the limiting groove 405. The number of sliding bars 404 in the auxiliary fixing device 4 is at least 6; the shaftless cavitation bubble diversion device 5 is provided with a diversion outer edge plate 504; the number of the guide vanes 505 arranged on the shaftless cavitation flow guiding device 5 is at least 2; the structure of the guide vane 505 arranged on the shaftless cavitation flow guiding device 5 can be spiral or quasi-spiral.

The working principle of the invention is as follows:

the sewage medium enters a first contraction section 201 of a shell of a front shell, namely a cavitation generation area from a water inlet pipe 1, the flow velocity is increased due to the contraction of an interface from the first contraction section 201 of the shell to a second direct current section 202 of the shell, the pressure is reduced to be equal to the saturated steam pressure according to the Bernoulli equation, cavitation starts to be generated, the sewage enters the cavitation generation area, and the flow velocity is reduced and the pressure is increased due to the fact that the area of the overflowing cross section of a first diffusion section 203 of the shell is increased. When entering the casing direct-current section 204, the cavitation bubbles enter the outer runner and the inner runner cavity of the shaftless cavitation bubble flow guiding device 5 respectively, and sequentially enter the flow guiding first contraction section 501, the flow guiding direct-current section 502 and the flow guiding second contraction section 503 in the inner runner. Finally, the two cavitation bubble flows enter a second contraction section 205 of the shell, namely a cavitation collapse area, pressure changes due to the change of the area of the overflowing cross section and the generation of vortices, when the pressure is reduced to saturated vapor pressure, cavitation bubbles collapse in the cavitation collapse area, physical and chemical effects caused by the collapse of the bubbles are exerted on domestic sewage, the consistency of a fluid solution is further improved, a sewage medium flows out from the outlet section 206, harmful substances in the domestic sewage are subjected to physical and chemical effects, the quality of the sewage medium is improved, and the aim of cavitation degradation of the harmful substances is finally achieved.

The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A novel sewage treatment device comprises a water inlet pipe, a front shell, a rear shell, an auxiliary fixing device and a shaftless cavitation bubble flow guide device, and is characterized in that the water inlet pipe is arranged at one end of the front shell, and the rear shell is arranged at the other end of the front shell; the front shell and the rear shell form a whole cavity, and a first contraction section of the shell, a first direct-current section of the shell, a diffusion section of the shell, a second direct-current section of the shell, a second contraction section of the shell and an outflow section are sequentially arranged in the cavity; an auxiliary fixing device and a shaftless cavitation bubble flow guiding device are arranged in the second direct-current section of the shell, and the shaftless cavitation bubble flow guiding device is fixed in the second direct-current section of the shell through the auxiliary fixing device.

2. The novel sewage treatment device according to claim 1, wherein an inner flow channel is arranged in the flow guiding inner edge plate of the shaftless cavitation flow guiding device, and a first flow guiding contraction section, a direct flow guiding section and a second flow guiding contraction section are sequentially arranged in the inner flow channel cavity along the flow direction; the guide outer edge plate and the guide vanes of the shaftless cavitation flow guiding device form an outer flow passage of the shaftless cavitation flow guiding device.

3. The novel sewage treatment device according to claim 1, wherein the auxiliary fixing device comprises a bearing, an oil seal, a gland, a sliding rod, a limiting groove, a limiting ring and a stepped surface, the oil seal is arranged in the gland, the gland is arranged above the bearing, and bearings are arranged at two ends of the sliding rod.

4. The novel sewage treatment device according to claim 3, wherein the number of the sliding bars in the auxiliary fixing device is at least 6.

5. The novel sewage treatment device according to claim 2, wherein the sliding rod is of a stepped shaft structure and is provided with a stepped surface for positioning the shaftless cavitation flow guiding device.

6. The novel sewage treatment device according to claim 2, wherein the slide bar is provided with a limiting groove, and a limiting ring is arranged in the limiting groove.

7. The novel sewage treatment device according to claim 2, wherein the number of the guide vanes of the shaftless cavitation guide device is at least 2.

8. The novel sewage treatment device according to claim 2, wherein the guide vane structure of the shaftless cavitation flow guide device can be spiral or quasi-spiral.