CN103193310A - Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber - Google Patents
Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber Download PDFInfo
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- CN103193310A CN103193310A CN2013100802046A CN201310080204A CN103193310A CN 103193310 A CN103193310 A CN 103193310A CN 2013100802046 A CN2013100802046 A CN 2013100802046A CN 201310080204 A CN201310080204 A CN 201310080204A CN 103193310 A CN103193310 A CN 103193310A
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Abstract
The invention discloses a venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber, including a venturi pipe and a scoop-type porous plate device, wherein the venturi pipe is connected with the scoop-type porous plate device, the venturi pipe is composed of a contraction section, a throat straight pipe section, and a diffusion section which are in sequential connection; the inlet section and the outlet section of the venturi pipe and the throat straight pipe are all of square cross-section, two sides and top of the throat straight pipe are provided with first organic glass which is easy for observation, the bottom of the throat straight pipe section is provided with a first movable steel plate, the first movable steel plate is provided with a plurality of pressure detection holes which are convenient for collecting pressure at each measuring point in a real time manner. According to the invention, a scoop-type porous plate is stretched into the observation section to facilitate an experimenter to observe a cavitation generation process and acquire images; a matrix type and interlacing type distribution is used for the arrangement of porous plate holes to enhance the effects of hydrodynamic cavitation; and the positions of the venture pipe and the porous plate can be exchanged to degrade refractory contaminants of different nature.
Description
Technical field
The present invention relates to a kind of Venturi tube and porous plate built-up type Hydrodynamic cavitation reaction chamber.
Background technology
Along with industrial expansion, the waste water composition becomes increasingly complex, and contain a large amount of hazardous and noxious substances, and traditional method of wastewater treatment has been difficult to the wastewater discharge standard that reaches up-to-date, and existing physico-chemical process exists reaction unit complexity, the too high shortcoming of processing cost again.The positive rudiment of novel wastewater processing technology and giving birth to, Hydrodynamic cavitation just one of them.
When liquid velocity improved, its pressure can descend, and when pressure was down to the saturated vapor pressure of liquid relevant temperature, liquid generation cavitation formed a large amount of cavitys, and cavity has formed two-phase flow with liquid-flow.When the pressure that flows increased, cavity was crumbled and fall and is formed microjet, shockwave and discharge huge energy in the short period of time at the utmost point.Liquid is cracked into active hydrogen atom and hydroxyl radical free radical under this high-energy effect, and reorganization forms hydrogen peroxide, and free group has strong oxidizing property, the complicated organism of can degrading effectively, bio-refractory thing etc.
Hydrodynamic cavitation has unique advantage: (1) easy control of reaction conditions; (2) generation cavitation efficient is higher; (3) the employed equipment of generation cavitation is simple; (4) maintenance cost of reactor is very low.
Consider that Venturi tube, porous plate all can produce cavitation effect, we are used its various combination, and a kind of is that Venturi tube connects porous plate, and another kind is that porous plate connects Venturi tube.About the Hydrodynamic cavitation device of this kind combination, not seeing as yet so far has reported in literature.
Summary of the invention
Existing method of wastewater treatment is difficult to reach wastewater discharge standard, physico-chemical process device complex process cost is crossed high shortcoming in order to overcome, the invention provides a kind of simple in structure, consumptive material is few and Venturi tube and the porous plate built-up type Hydrodynamic cavitation reaction chamber easy to operate, that maintenance cost is low.
The technical solution used in the present invention is:
Venturi tube and porous plate built-up type Hydrodynamic cavitation reaction chamber, comprise Venturi tube and scoop-like porous plate device, it is characterized in that: described Venturi tube is connected with described scoop-like porous plate device, and described Venturi tube is made up of the contraction section that is linked in sequence, throat's straight length and expansion section; Liquid accelerates in the contraction section of Venturi tube and pressure is descended, cavitation when being down to the saturated vapor pressure of liquid relevant temperature, described liquid pressure takes place in throat's straight length, cavity continues to flow forward with current, crumbles and fall at the expansion section pressure of the Venturi tube cavity that raises again; The entrance of described Venturi tube and outlet section and described throat straight length are square cross-section, the both sides of described throat straight length and top are provided with first synthetic glass of being convenient to observe, the bottom of described throat straight length is provided with the first movable steel plate, and the described first movable steel plate is provided with a plurality of pressure taps of being convenient to gather in real time each measuring point pressure.
Further, described scoop-like porous plate device comprises scoop-like porous plate and square cross-section observation section, and described scoop-like porous plate stretches into described observation intersegmental part; Described porous plate is provided with the aperture, and liquid flow forms high-speed jet when described aperture, forms cavity when described high-speed jet pressure is down to the saturated vapour pressure of described liquid relevant temperature, and described cavity is grown and crumbled and fall in described observation section; Both sides and the top of described observation section are provided with second synthetic glass of being convenient to observe, and the bottom of described observation section is provided with the second movable steel plate, and the described second movable steel plate is provided with a plurality of pressure taps of being convenient to gather in real time each measuring point pressure; When the expansion section of described Venturi tube is connected with described scoop-like porous plate device, the contraction section of described Venturi tube is connected with pipeline by the circle square joint, described observation section upstream extremity is connected with the expansion section of Venturi tube, and downstream end is connected with pipeline by the circumference joint; When the contraction section of described Venturi tube is connected with described scoop-like porous plate device, the expansion section of described Venturi tube is connected with pipeline by the circumference joint, described observation section upstream extremity is connected with pipeline by the circle square joint, and downstream end is connected with the contraction section of Venturi tube.
Further, the shape in described aperture be circle, equilateral triangle, one or more the arbitrary combination in square.
Further, the layout in described aperture adopts matrix form and alternating expression to distribute.
Further, the rear end of the front end of described Venturi tube entrance and described porous plate outlet is respectively arranged with tensimeter and the control valve for observation and control Hydrodynamic cavitation chamber pressure.
Further, the priority position of described Venturi tube and scoop-like porous plate device can be exchanged.
The technical conceive of patent of the present invention is: liquid accelerates in the contraction section of Venturi tube and pressure is descended, cavitation when being down to the saturated vapor pressure of liquid relevant temperature, liquid pressure takes place, cavity continues to flow forward with current, crumbles and fall at the expansion section pressure cavity that raises again.Current form the multiply high-speed jet through porous plate more then toward the downstream, form cavity when high-speed jet pressure is down to the saturated vapour pressure of described liquid relevant temperature, and described cavity is crumbled and fall in the observation section again.Liquid is double generation cavitation effect in this device, is accompanied by the moment that cavity crumbles and fall to form shockwave and microjet, produces ultrahigh-temperature ultra-high voltage, and the materialization effect that produces under this extreme condition is for the treatment of industrial uses such as waste water difficult for biological degradation.
Principle of work of the present invention is:
1, a kind of is that current pass through the porous plate section again through the Venturi pipeline section earlier, specifically be that current are earlier through the circle square joint, the Venturi tube contraction section that enters square cross-section forms high velocity flow, at throat's straight length cavitation taking place when water flow pressure is down to the saturated vapor pressure of relevant temperature forms cavity, because pressure raises cavity is crumbled and fall with the expansion section that flows to into Venturi tube, cavitation for the first time takes place.Then current flow into that porous plate accelerates and pressure descends forms cavity again, and slow down in the diffusion process of porous plate downstream with multiply high-speed jet form pressure is raise, and cavity is crumbled and fall, and the cavitation second time takes place.Last current are flowed out by the circumference joint of Hydrodynamic cavitation reaction chamber back segment.
2, another kind is that current pass through Venturi tube again through porous plate earlier, be specially current through the circle square joint, enter porous plate with square cross-section and form the multiply high-speed jet, current accelerate in porous plate and pressure decline, cavitation takes place when water flow pressure is down to the saturated vapor pressure of relevant temperature form cavity, with the deceleration in observation section diffusion process of multiple jets form pressure is raise, cavity is crumbled and fall, and cavitation for the first time takes place.Then current flow into the contraction section formation high velocity flow of Venturi tube, and water flow pressure descends, and forms cavity at throat's straight length, and the expansion section that feed pressure raises is crumbled and fall cavity, and the cavitation second time takes place.Last current are flowed out by the circumference joint.
Unusual effect of the present invention is embodied in: the various combination with Venturi tube and porous plate makes the double generation Hydrodynamic cavitation of liquid, and difficult degradation pollutent of different nature is conducive to degrade; Simple in structure, consumptive material is few, easy to operate, maintenance cost is low; Adopt the design of scoop-like porous plate, be convenient to visual inspection; The aperture is arranged as matrix form and alternating expression, is conducive to strengthen the effect of Hydrodynamic cavitation.
Description of drawings
Fig. 1 is front view of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is the front view of Venturi tube of the present invention;
Fig. 4 is the vertical view of Venturi tube of the present invention;
Fig. 5 is scoop-like porous plate figure of the present invention;
Fig. 6 is the front view of the present invention's section of observation;
Fig. 7 is the vertical view of the present invention's section of observation;
Fig. 8 is the A-A sectional structure chart of Fig. 6;
Fig. 9 a is the circular orifice porous plate layout drawing in diameter d=5.00mm of the present invention, 16 holes;
Fig. 9 b is the circular orifice porous plate layout drawing in diameter d=5.00mm of the present invention, 25 holes;
Fig. 9 c is the circular orifice porous plate layout drawing in diameter d=3.00mm of the present invention, 25 holes;
Fig. 9 d is the circular orifice porous plate layout drawing in diameter d=3.00mm of the present invention, 49 holes;
Figure 10 a is the square aperture porous plate layout drawing in side length b=4.43mm of the present invention, 16 holes;
Figure 10 b is the square aperture porous plate layout drawing in side length b=4.43mm of the present invention, 25 holes;
Figure 10 c is the square aperture porous plate layout drawing in side length b=2.66mm of the present invention, 49 holes;
Figure 10 d is the square aperture porous plate layout drawing in side length b=2.66mm of the present invention, 25 holes;
Figure 11 a is the equilateral triangle aperture porous plate layout drawing in length of side a=4.04mm of the present invention, 25 holes;
Figure 11 b is the equilateral triangle aperture porous plate layout drawing in length of side a=4.04mm of the present invention, 49 holes;
Figure 11 c is the equilateral triangle aperture porous plate layout drawing in length of side a=6.73mm of the present invention, 16 holes;
Figure 11 d is the equilateral triangle aperture porous plate layout drawing in length of side a=6.73mm of the present invention, 25 holes;
Figure 12 is the hybrid aperture of the present invention porous plate layout drawing.
Embodiment
Referring to figs. 1 through Figure 12, Venturi tube and porous plate built-up type Hydrodynamic cavitation reaction chamber, comprise Venturi tube and scoop-like porous plate device, described Venturi tube is connected with described scoop-like porous plate device, and described Venturi tube is made up of the contraction section 1 that is linked in sequence, throat's straight length 2 and expansion section 3; Liquid accelerates in the contraction section 1 of Venturi tube and pressure is descended, cavitation when being down to the saturated vapor pressure of liquid relevant temperature, described liquid pressure takes place in throat's straight length 2, cavity continues to flow forward with current, crumbles and fall at expansion section 3 pressure of the Venturi tube cavity that raises again; The entrance of described Venturi tube and outlet section and described throat straight length 2 are square cross-section, the both sides of described throat straight length 2 and top are provided with first synthetic glass of being convenient to observe 7, the bottom of described throat straight length 2 is provided with the first movable steel plate 11, and the described first movable steel plate 11 is provided with a plurality of pressure taps 6 of being convenient to gather in real time each measuring point pressure.
Further, described scoop-like porous plate device comprises scoop-like porous plate 4 and square cross-section observation section 5, and described scoop-like porous plate 4 stretches into described observation section 5 inside; Described porous plate 4 is provided with the aperture, and liquid flow forms high-speed jet when described aperture, forms cavity when described high-speed jet pressure is down to the saturated vapour pressure of described liquid relevant temperature, and described cavity is grown and crumbled and fall in described observation section 5; Both sides and the top of described observation section 5 are provided with second synthetic glass of being convenient to observe 8, and the bottom of described observation section is provided with the second movable steel plate 12, and the described second movable steel plate 12 is provided with a plurality of pressure taps 6 of being convenient to gather in real time each measuring point pressure; When the expansion section 3 of described Venturi tube is connected with described scoop-like porous plate device, the contraction section 1 of described Venturi tube is connected with pipeline by circle square joint 9, described observation section 5 upstream extremities are connected with the expansion section 3 of Venturi tube, and downstream end is connected with pipeline by circumference joint 10; When the contraction section 1 of described Venturi tube is connected with described scoop-like porous plate device, the expansion section 3 of described Venturi tube is connected with pipeline by circumference joint 10, described observation section 5 upstream extremities are connected with pipeline by circle square joint 9, and downstream end is connected with the contraction section 1 of Venturi tube.
Further, the shape in described aperture be circle, equilateral triangle, one or more the arbitrary combination in square.
Further, the layout in described aperture adopts matrix form and alternating expression to distribute.
Further, the rear end of the front end of described Venturi tube entrance and described porous plate outlet is respectively arranged with tensimeter and the control valve for observation and control Hydrodynamic cavitation chamber pressure.
Further, the priority position of described Venturi tube and scoop-like porous plate device can be exchanged.
The technical conceive of patent of the present invention is: liquid accelerates in the contraction section of Venturi tube and pressure is descended, cavitation when being down to the saturated vapor pressure of liquid relevant temperature, liquid pressure takes place, cavity continues to flow forward with current, crumbles and fall at the expansion section pressure cavity that raises again.Current form the multiply high-speed jet through porous plate more then toward the downstream, form cavity when high-speed jet pressure is down to the saturated vapour pressure of described liquid relevant temperature, and described cavity is crumbled and fall in the observation section again.Liquid is double generation cavitation effect in this device, is accompanied by the moment that cavity crumbles and fall to form shockwave and microjet, produces ultrahigh-temperature ultra-high voltage, and the materialization effect that produces under this extreme condition is for the treatment of industrial uses such as waste water difficult for biological degradation.
Principle of work of the present invention is:
1, a kind of is that current pass through the porous plate section again through the Venturi pipeline section earlier, specifically be that current are earlier through the circle square joint, the Venturi tube contraction section that enters square cross-section forms high velocity flow, at throat's straight length cavitation taking place when water flow pressure is down to the saturated vapor pressure of relevant temperature forms cavity, because pressure raises cavity is crumbled and fall with the expansion section that flows to into Venturi tube, cavitation for the first time takes place.Then current flow into that porous plate accelerates and pressure descends forms cavity again, and slow down in the diffusion process of porous plate downstream with multiply high-speed jet form pressure is raise, and cavity is crumbled and fall, and the cavitation second time takes place.Last current are flowed out by the circumference joint of Hydrodynamic cavitation reaction chamber back segment.
2, another kind is that current pass through Venturi tube again through porous plate earlier, be specially current through the circle square joint, enter porous plate with square cross-section and form the multiply high-speed jet, current accelerate in porous plate and pressure decline, cavitation takes place when water flow pressure is down to the saturated vapor pressure of relevant temperature form cavity, with the deceleration in observation section diffusion process of multiple jets form pressure is raise, cavity is crumbled and fall, and cavitation for the first time takes place.Then current flow into the contraction section formation high velocity flow of Venturi tube, and water flow pressure descends, and forms cavity at throat's straight length, and the expansion section that feed pressure raises is crumbled and fall cavity, and the cavitation second time takes place.Last current are flowed out by the circumference joint.
The described content of this specification sheets embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the specific form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (6)
1. Venturi tube and porous plate built-up type Hydrodynamic cavitation reaction chamber, comprise Venturi tube and scoop-like porous plate device, it is characterized in that: described Venturi tube is connected with described scoop-like porous plate device, and described Venturi tube is made up of the contraction section that is linked in sequence, throat's straight length and expansion section; Liquid accelerates in the contraction section of Venturi tube and pressure is descended, cavitation when being down to the saturated vapor pressure of liquid relevant temperature, described liquid pressure takes place in throat's straight length, cavity continues to flow forward with current, crumbles and fall at the expansion section pressure of the Venturi tube cavity that raises again; The entrance of described Venturi tube and outlet section and described throat straight length are square cross-section, the both sides of described throat straight length and top are provided with first synthetic glass of being convenient to observe, the bottom of described throat straight length is provided with the first movable steel plate, and the described first movable steel plate is provided with a plurality of pressure taps of being convenient to gather in real time each measuring point pressure.
2. Venturi tube as claimed in claim 1 and porous plate built-up type Hydrodynamic cavitation reaction chamber is characterized in that: described scoop-like porous plate device comprises scoop-like porous plate and square cross-section observation section, and described scoop-like porous plate stretches into described observation intersegmental part; Described porous plate is provided with the aperture, and liquid flow forms high-speed jet when described aperture, forms cavity when described high-speed jet pressure is down to the saturated vapour pressure of described liquid relevant temperature, and described cavity is grown and crumbled and fall in described observation section; Both sides and the top of described observation section are provided with second synthetic glass of being convenient to observe, and the bottom of described observation section is provided with the second movable steel plate, and the described second movable steel plate is provided with a plurality of pressure taps of being convenient to gather in real time each measuring point pressure; When the expansion section of described Venturi tube is connected with described scoop-like porous plate device, the contraction section of described Venturi tube is connected with pipeline by the circle square joint, described observation section upstream extremity is connected with the expansion section of Venturi tube, and downstream end is connected with pipeline by the circumference joint; When the contraction section of described Venturi tube is connected with described scoop-like porous plate device, the expansion section of described Venturi tube is connected with pipeline by the circumference joint, described observation section upstream extremity is connected with pipeline by the circle square joint, and downstream end is connected with the contraction section of Venturi tube.
3. Venturi tube as claimed in claim 2 and porous plate built-up type Hydrodynamic cavitation reaction chamber is characterized in that: the shape in described aperture is circle, equilateral triangle, one or more the arbitrary combination in square.
4. Venturi tube as claimed in claim 3 and porous plate built-up type Hydrodynamic cavitation reaction chamber is characterized in that: the layout employing matrix form in described aperture and alternating expression distribution.
5. Venturi tube as claimed in claim 4 and porous plate built-up type Hydrodynamic cavitation reaction chamber is characterized in that: the rear end of the front end of described Venturi tube entrance and the outlet of described porous plate is respectively arranged with tensimeter and the control valve for observation and control Hydrodynamic cavitation chamber pressure.
6. Venturi tube as claimed in claim 5 and porous plate built-up type Hydrodynamic cavitation reaction chamber, it is characterized in that: the priority position of described Venturi tube and scoop-like porous plate device can be exchanged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100802046A CN103193310A (en) | 2013-03-13 | 2013-03-13 | Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100802046A CN103193310A (en) | 2013-03-13 | 2013-03-13 | Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber |
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| CN103193310A true CN103193310A (en) | 2013-07-10 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472062A (en) * | 2013-09-05 | 2013-12-25 | 中国矿业大学 | Cavitation and erosion experiment platform based on water circulation system |
| CN103611481A (en) * | 2013-11-25 | 2014-03-05 | 中国矿业大学 | Hydrodynamic cavitation generating device |
| CN104504970A (en) * | 2015-01-06 | 2015-04-08 | 北京理工大学 | Small-sized cavitation test device based on pressure control |
| CN105439322A (en) * | 2015-12-04 | 2016-03-30 | 中北大学 | Wastewater treatment method and device based on hydrodynamic cavitation |
| CN105502626A (en) * | 2015-12-04 | 2016-04-20 | 中北大学 | Hydrodynamic cavitation reactor |
| CN106629874A (en) * | 2015-11-03 | 2017-05-10 | 浙江工业大学 | Venturi type cavitation and cavitation erosion reactor for disinfection of drinking water |
| CN106669584A (en) * | 2016-12-21 | 2017-05-17 | 武汉大学 | Intense shearing annular jet cavitation generator |
| CN109179584A (en) * | 2018-09-26 | 2019-01-11 | 军事科学院系统工程研究院卫勤保障技术研究所 | A method of strengthening Hydrodynamic cavitation and generates hydroxyl radical free radical |
| CN109574135A (en) * | 2018-12-11 | 2019-04-05 | 西安交通大学 | A kind of adjustable venturi in relative position and multi-hole orifice combined type cavitation apparatus |
| CN109626546A (en) * | 2018-12-18 | 2019-04-16 | 西安交通大学 | A kind of ring wall distribution jet flow cavitation water treatment facilities |
| CN110064314A (en) * | 2018-01-24 | 2019-07-30 | 傅开彬 | A kind of novel controllable nano bubble generator |
| CN111542498A (en) * | 2017-11-16 | 2020-08-14 | 庞蒂克技术有限责任公司 | Fluid purification device |
| CN111794862A (en) * | 2020-07-15 | 2020-10-20 | 山东大学 | Deicing device and deicing method for air inlet lip of aircraft engine |
| CN113023825A (en) * | 2021-03-22 | 2021-06-25 | 江苏科技大学 | Device for cavitation treatment of sewage by using ship waste heat and working method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103472062B (en) * | 2013-09-05 | 2016-09-21 | 中国矿业大学 | A kind of cavitation and cavitation erosion experiment porch based on water circulation system |
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| CN104504970A (en) * | 2015-01-06 | 2015-04-08 | 北京理工大学 | Small-sized cavitation test device based on pressure control |
| CN106629874A (en) * | 2015-11-03 | 2017-05-10 | 浙江工业大学 | Venturi type cavitation and cavitation erosion reactor for disinfection of drinking water |
| CN105439322B (en) * | 2015-12-04 | 2018-01-26 | 中北大学 | Method of wastewater treatment and device based on Hydrodynamic cavitation |
| CN105502626A (en) * | 2015-12-04 | 2016-04-20 | 中北大学 | Hydrodynamic cavitation reactor |
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| CN106669584A (en) * | 2016-12-21 | 2017-05-17 | 武汉大学 | Intense shearing annular jet cavitation generator |
| CN106669584B (en) * | 2016-12-21 | 2021-09-03 | 武汉大学 | Strong-shearing type annular jet cavitation generator |
| CN111542498A (en) * | 2017-11-16 | 2020-08-14 | 庞蒂克技术有限责任公司 | Fluid purification device |
| CN110064314A (en) * | 2018-01-24 | 2019-07-30 | 傅开彬 | A kind of novel controllable nano bubble generator |
| CN109179584A (en) * | 2018-09-26 | 2019-01-11 | 军事科学院系统工程研究院卫勤保障技术研究所 | A method of strengthening Hydrodynamic cavitation and generates hydroxyl radical free radical |
| CN109574135A (en) * | 2018-12-11 | 2019-04-05 | 西安交通大学 | A kind of adjustable venturi in relative position and multi-hole orifice combined type cavitation apparatus |
| CN109574135B (en) * | 2018-12-11 | 2023-10-24 | 西安交通大学 | Venturi and porous orifice plate combined cavitation device with adjustable relative positions |
| CN109626546A (en) * | 2018-12-18 | 2019-04-16 | 西安交通大学 | A kind of ring wall distribution jet flow cavitation water treatment facilities |
| CN111794862A (en) * | 2020-07-15 | 2020-10-20 | 山东大学 | Deicing device and deicing method for air inlet lip of aircraft engine |
| CN113023825A (en) * | 2021-03-22 | 2021-06-25 | 江苏科技大学 | Device for cavitation treatment of sewage by using ship waste heat and working method |
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Application publication date: 20130710 |