WO2020177363A1

WO2020177363A1 - Efficient wastewater dissolved gas treatment device

Info

Publication number: WO2020177363A1
Application number: PCT/CN2019/115707
Authority: WO
Inventors: 陈振国; 张超; 吴平; 张力桢
Original assignee: 苏州方舟环保科技有限公司
Priority date: 2019-03-05
Filing date: 2019-11-05
Publication date: 2020-09-10
Also published as: CN109704450A; CN109704450B

Abstract

Disclosed is an efficient wastewater dissolved gas treatment device, comprising a first connecting tube (10), a second connecting tube (20), and a magnetic venturi tube body (30). The magnetic venturi tube body (30) comprises a conical contraction section (301), a cylindrical throat pipe section (302) and a conical diffusion section (303), wherein one end of the magnetic venturi tube body (30) extends into the first connecting tube (10), the other end of the magnetic venturi tube body (30) extends into the second connecting tube (20), the first connecting tube (10) and the second connecting tube (20) are detachably connected, the middle of the cylindrical throat pipe section (302) is provided with a gas inlet (304), and the gas inlet (304) penetrates the second connecting tube (20). Ozone is introduced during wastewater conveyance, the dissolved quantity of the ozone is improved, and also a ferromagnetic venturi tube magnetizes wastewater, and the wastewater treatment efficiency is improved.

Description

High-efficiency wastewater and dissolved gas treatment device

Technical field

The invention relates to the technical field of equipment for dissolving gas into liquid, in particular to a high-efficiency wastewater dissolved gas treatment device.

Background technique

As the types and quantities of pollutants in modern wastewater have become more and more complex, the situation in which wastewater contains a large amount of heavy metal ions is particularly serious. The discharge of these waste water not only poses a threat to aquatic organisms, but also may continue to be enriched through precipitation, adsorption and food chain, destroying the ecological environment and ultimately threatening human health. It is difficult to meet the requirements with a single conventional water treatment agent and urgently needs advanced treatment. Current advanced wastewater treatment technologies generally include advanced oxidation methods, such as ozone oxidation, ozone + photocatalytic oxidation, ozone catalytic oxidation, and membrane treatment technologies. Researches on photocatalytic oxidation using negative titanium TiO ₂ as a catalyst have been conducted in China. There are many studies on advanced treatment of wastewater abroad, mainly focusing on photocatalytic oxidation and reverse osmosis. A. Wenzel et al. compared UV/H ₂ O ₂ and UV/H ₂ O ₂ / with a bubble column + thin film photoreactor. Research on the treatment of wastewater by O ₃ , UV/O ₃ and other methods shows that the UV/O ₃ method is the most effective method for advanced wastewater treatment in terms of operating cost and removal efficiency. However, advanced treatment technology means higher cost, and the amount of O ₃ dissolved in wastewater is small, resulting in longer treatment time and higher treatment cost. At the same time, the removal effect of heavy metals is limited. How to further improve the efficiency of wastewater treatment becomes an urgent solution The problem.

Summary of the invention

The technical problem to be solved by the present invention is to provide a device for improving the amount of ozone dissolution and treatment efficiency of wastewater. Using the characteristics of the venturi tube, ozone is introduced when the wastewater is transferred to increase the dissolution amount of ozone. At the same time, the venturi made of ferromagnetic material The tube pair magnetizes the wastewater for a long time to ensure that the metal and non-metal elements in the wastewater are magnetized, which is easier to be adsorbed and treated, and the wastewater treatment efficiency is improved.

In order to solve the above technical problems, the present invention provides a high-efficiency wastewater and dissolved gas treatment device, including a first connecting pipe, a second connecting pipe, and a magnetic venturi body. The magnetic venturi body includes a conical contraction section and a cylinder. The throat section and the conical diffusion section, one end of the magnetic venturi body extends into the inside of the first connecting pipe, the other end of the magnetic venturi body extends into the inside of the second connecting pipe, and the first connection The pipe and the second connecting pipe are detachably connected, an air inlet is opened in the middle of the cylindrical throat pipe, and the air inlet passes through the second connecting pipe.

Further, a first flange is provided on the first connecting pipe, a second flange is provided on the second connecting pipe, and the first flange and the second flange are detachably connected.

Further, a magnetic concentrating ring is fixedly connected to the connection between the conical contraction section and the cylindrical throat section, and two sides of the magnetic concentrating ring abut the first flange and the second flange.

Further, a sealing gasket is provided between the magnetic focusing ring and the first flange and between the magnetic focusing ring and the second flange.

Further, the inner diameter of the first flange and the inner diameter of the second flange are both smaller than the outer diameter of the magnetic focusing ring, and the outer diameter of the magnetic focusing ring is smaller than the outer diameter of the first flange and The outer diameter of the second flange.

Further, the air inlet is located at the end of the second connecting pipe.

Further, the dissolving device further includes a visible part, the visible part includes a seat body and a sealing element, the seat body is provided with a first through hole, and the cylindrical throat is provided with a A second through hole communicating with the first through hole, a third through hole for installing the seat is opened on the pipe wall of the second connecting pipe, and the sealing member passes through the first through hole and the The second through hole is detachably connected with the seat body.

Further, the contact surface of the seat body and the cylindrical throat pipe is provided with a sealing gasket, and the aperture of the first through hole is equal to the aperture of the second through hole.

Further, the seat body includes a flange edge and a sleeve, the seal includes a cover body and a plug rod, the cover body and the plug rod are connected in a T shape, and the cover body and the flange of the seat body When connected to the side, the visible part further includes a sealing ring, and the sealing ring is arranged between the cover body and the seat body.

Further, the visible part further includes a force member, the force member is detachably connected to the center of the cover body, and the seat body is detachably connected to the second connecting pipe.

Compared with the prior art, the high-efficiency wastewater and dissolved gas treatment device of the present invention has the beneficial effects that ozone is introduced when the wastewater is transmitted, and the dissolution amount of ozone is increased. At the same time, the ferromagnetic venturi is used to magnetize the wastewater. , The magnetization time is long, to ensure that the metal and non-metal elements in the wastewater are magnetized, which is easier to be adsorbed and treated, and the wastewater treatment efficiency is improved.

Description of the drawings

Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

Figure 2 is a schematic structural diagram of the second embodiment of the present invention;

Figure 3 is a schematic structural diagram of Embodiment 3 of the present invention;

Fig. 4 is a schematic diagram of the structure of the visible part of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the cited embodiments are not intended to limit the present invention.

Referring to FIG. 1, an embodiment of a high-efficiency wastewater and dissolved gas treatment device of the present invention includes a first connecting pipe 10, a second connecting pipe 20, and a magnetic venturi body 30. The magnetic venturi body 30 Including a conical constriction section 301, a cylindrical throat section 302 and a conical diffusion section 303. The central part of the cylindrical throat pipe 302 is provided with an air inlet 304. Wastewater passes through the conical constriction section 301, the cylindrical throat section 302 and the conical diffusion section in sequence. In section 303, due to the shrinkage of the diameter, the velocity of the waste water can be converted into pressure energy. The ozone is sucked in from the air inlet 304 for mixing and energy exchange. Due to the flow rate and pressure, the ozone is cut into small bubbles and a large amount of it is incorporated into the waste water. Since the venturi body 30 is a magnetic medium, the waste water is magnetized while passing through the venturi body 30. The waste water will generate electric charges and the electromotive force that makes the electric charges move. Therefore, the waste water produces physical changes such as current and potential difference, resulting in Power. At this time, there is an electric charge and potential in the wastewater, which will change the state and properties of the water itself and other substances contained in the water. This kind of magnetized water will have physical and electrochemical changes on the wall of the tube and container in contact with it. energy of. In high-concentration wastewater, impurities such as salt, alkali, acid, etc. are dissolved to varying degrees. The wastewater has a certain acidity. At the same time, undissolved solid impurities and trace metal and non-metal elements are suspended to varying degrees. These impurities Non-insulating materials that have certain conductivity with other elements can be magnetized to varying degrees. Because the length of the venturi body 30 is longer and the diameter of the venturi body 30 is limited, the wastewater magnetization time is long and the magnetization effect is good, which is convenient for follow-up In operation, one end of the magnetic venturi body 30 extends into the inside of the first connecting tube 10, the other end of the magnetic venturi body 30 extends into the inside of the second connecting tube 20, and the air inlet 304 Passing through the second connecting tube 20 ensures the length of the venturi body 30, and facilitates the insertion of the venturi body 30 into the second connecting tube 20. At the same time, since the venturi body 30 is in the conical contraction section 301 and the cylindrical throat The diameter of the tube 302 shrinks, so wear and failure are likely to occur at this position. The first connecting tube 10 and the second connecting tube 20 can be detachably connected. When wear or failure occurs, first connect the first connecting tube 10 and the second After the tube 20 is separated, the venturi body 30 is taken out from the inside of the first connecting tube 10 and the second connecting tube 20 for replacement. There is no need to remove the first connecting tube 10 and the second connecting tube 20 at the same time, which saves time and effort. The difficulty of the operator’s work is reduced. One end of the venturi body 30 extends into the interior of the first connecting pipe 10, and the other end extends into the interior of the second connecting pipe 20, which avoids the problem of the venturi body 30 in the prior art. In the case of inconvenient operation caused by the integrated structure, the first connecting tube 10, the second connecting tube 20 and the venturi body 30 are connected in a segmented and detachable manner. The venturi body 30 can be replaced in time, which is convenient post-maintenance. At the same time, the first connecting pipe 10 and the second connecting pipe 20 that have no problems can be reused after replacing the venturi body 30, which increases the reuse rate and reduces the production cost. In order to facilitate the disassembly of the first Connecting pipe 10 and second connecting pipe 20, said first connecting pipe 10 is provided with a first flange 101, said second connecting pipe 20 is provided with a second flange 201, said first flange 101 and The second flange 201 is detachably connected, and the air inlet 304 is located at the end of the second connecting pipe 20 and passes through the second flange 201 to facilitate the insertion of the venturi body 30 into the second connecting pipe 20.

Referring to Figure 2, in order to enhance the magnetization effect of wastewater, the conical constriction section 301 and the cylindrical throat 302 section are fixedly connected with a magnetic ring 305, so that the wastewater is further magnetized before being mixed with ozone. The two sides of the concentrating ring 305 abut the first flange 101 and the second flange 201 to facilitate the fixing of the first connecting pipe 10 and the second connecting pipe 20. At the same time, the magnetic concentrating ring 305 is in contact with the second flange 201. A sealing gasket 306 is provided between a flange 101 and between the magnetic focusing ring 305 and the second flange 201 to ensure the sealing performance between the venturi body and the flange, in order to be able to The body 30 is restricted by setting the inner diameter of the first flange 101 and the inner diameter of the second flange 201 to be smaller than the outer diameter of the magnetic concentrating ring 305, and the outer diameter of the magnetic concentrating ring 305 is smaller than the The outer diameter of the first flange 101 and the outer diameter of the second flange 201 are used to prevent the venturi body 30 from moving in the axial direction.

As shown in Fig. 3, since waste water passes through the venturi body 30, it will wash away the inner wall of the conical contraction section 301 and the cylindrical throat 302 for a long time, and it is easy to accumulate impurities or damage the rust. In order to facilitate the observation in the venturi body 30 In the case of the cylindrical throat 302, a second through hole 307 is used. The dissolving device also includes a visible part 40. The visible part 40 cooperates with the second through hole 307 to observe the body of the venturi 30 internal state, the visible portion 40 includes a seat body 401 and a sealing member 402, the seat body 401 is provided with a first through hole 403, and the cylindrical throat 302 is provided with a first through hole on the wall. The second through hole 307 connected by the hole 403, through the visible port formed by the connected first through hole 403 and the second through hole 307, can directly observe the internal state of the venturi body 30, the second connecting pipe 20 The tube wall is provided with a third through hole 202 for installing the seat body 401, which is convenient for the seat body 401 to be inserted into the first connecting tube 10 and abut the venturi body 30. The sealing member 402 passes through the first The through hole 403 and the second through hole 307 are detachably connected to the seat body 401, and the sealing member 402 is inserted to seal the second through hole 307 on the venturi body 30 to make the venturi body 30 normal Work, remove the seal 402, through the first through hole 403 and the second through hole 307, the cylindrical throat 302 and the inner wall of the conical constriction 301 can be inspected, and the inner wall of the conical constriction 301 and the cylindrical throat 302 can be inspected. The inner wall is cleaned and derusted. In order to ensure good sealing performance of the venturi body 30 when the sealing element 402 is inserted, the contact surface of the seat body 401 and the cylindrical throat 302 is provided with a sealing gasket 308. The aperture of the first through hole 403 is The apertures of the second through holes 307 are equal. As shown in FIG. 4, in this embodiment, the seat body 401 includes a flange 404 and a sleeve 405, and the sleeve 405 is inserted into the second connecting pipe through the third through hole 202 20. The flange 404 is fixed with the second connecting pipe 20 to ensure the stability of the position of the seat body 401. The sealing member 402 includes a cover 406 and a plug 407. The plug 407 just seals the viewing port. The cover 406 The connection with the plug 407 is in a T shape, the cover 406 is connected with the flange 404 of the seat 401, and the two are fixed by fasteners. The visible part 40 also includes a sealing ring 408. The ring 408 is arranged between the cover body 406 and the seat body 401 to further seal the viewing port; in order to facilitate the removal of the cover body 406 from the viewing port or install it on the viewing port, in this embodiment, the The visible part 40 also includes a force member 409, which is detachably connected to the center of the cover body 406. In this embodiment, the force member 409 is an eye bolt, and the seat body 401 is connected to the The second connecting pipe 10 is detachable and convenient.

The high-efficiency wastewater and dissolved gas treatment device of the present invention, when in use, the wastewater enters the venturi body from the first connecting pipe, and is magnetized in the venturi body. The length of the venturi body is longer, and the organic matter in the wastewater is magnetized for a long time Later, impurities such as calcium and iron in the wastewater will also produce positive and negative ions at the same time. The ions are attracted to each other due to the relationship between the positive and negative charges, causing the suspended impurities to condense and increase the volume, completing the wastewater magnetization and coagulation process , It is easier to be adsorbed, easier to remove, and the removal efficiency is better. At the same time, due to the structural characteristics of the venturi body, a large amount of ozone is incorporated into the wastewater, and then under the irradiation of the ultraviolet lamp, a large amount of ozone oxidizes the impurities in the wastewater to form flocculation , It is easier to be removed, improving the efficiency of wastewater treatment.

The above-mentioned embodiments are only preferred embodiments for fully explaining the present invention, and the protection scope of the present invention is not limited thereto. The equivalent substitutions or changes made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

A high-efficiency wastewater and dissolved gas treatment device, which is characterized by comprising a first connecting pipe, a second connecting pipe and a magnetic venturi body. The magnetic venturi body includes a conical contraction section, a cylindrical throat section and a conical diffusion section One end of the magnetic venturi body extends into the inside of the first connecting tube, the other end of the magnetic venturi tube extends into the inside of the second connecting tube, and the first connecting tube and the second connecting tube can be When the connection is disassembled, an air inlet is opened in the middle of the cylindrical throat, and the air inlet passes through the second connecting pipe.
The high-efficiency wastewater and dissolved gas treatment device according to claim 1, wherein the first connecting pipe is provided with a first flange, the second connecting pipe is provided with a second flange, and the The first flange and the second flange are detachably connected.
The high-efficiency wastewater and dissolved gas treatment device according to claim 2, characterized in that a magnetic concentrating ring is fixedly connected to the connection between the conical constricted section and the cylindrical throat section, and both sides of the magnetic converging ring are connected to the The first flange abuts against the second flange.
A high-efficiency wastewater and dissolved gas treatment device according to claim 3, characterized in that, between the magnetic focusing ring and the first flange and between the magnetic focusing ring and the second flange are both A sealing gasket is provided.
The high-efficiency wastewater and dissolved gas treatment device according to claim 3, wherein the inner diameter of the first flange and the inner diameter of the second flange are both smaller than the outer diameter of the magnetic focusing ring, and The outer diameter of the magnetic focusing ring is smaller than the outer diameter of the first flange and the outer diameter of the second flange.
The high-efficiency wastewater and dissolved gas treatment device according to claim 1, wherein the air inlet is located at the end of the second connecting pipe.
The high-efficiency wastewater and dissolved gas treatment device according to claim 1, wherein the dissolved gas device further comprises a visible part, the visible part comprises a seat body and a sealing member, and the seat body is provided with The first through hole, the wall of the cylindrical throat pipe is provided with a second through hole communicating with the first through hole, and the pipe wall of the second connecting pipe is provided with a third through hole for installing the seat body The sealing element passes through the first through hole and the second through hole in sequence, and is detachably connected to the seat body.
The high-efficiency wastewater and dissolved gas treatment device according to claim 7, wherein the contact surface of the seat body and the cylindrical throat is provided with a sealing gasket, and the aperture of the first through hole is The apertures of the second through holes are equal.
The high-efficiency wastewater and dissolved gas treatment device according to claim 7, wherein the seat body includes a flange and a sleeve, the sealing member includes a cover and a plug, and the cover and the plug The connection is in a T-shape, the cover body is connected with the flange of the seat body, and the visible part further includes a sealing ring disposed between the cover body and the seat body.
A high-efficiency wastewater and dissolved gas treatment device according to claim 9, wherein the visible part further comprises a force member, the force member is detachably connected to the center of the cover, and the base body and The second connecting pipe can be detachably connected.