CN114307899B - Rotational flow pulse cavitation device - Google Patents
Rotational flow pulse cavitation device Download PDFInfo
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- CN114307899B CN114307899B CN202111644057.1A CN202111644057A CN114307899B CN 114307899 B CN114307899 B CN 114307899B CN 202111644057 A CN202111644057 A CN 202111644057A CN 114307899 B CN114307899 B CN 114307899B
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Abstract
The invention relates to a rotational flow pulse cavitation device which comprises a spiral diversion section, a hollow spiral diversion section, an air inlet cavity, a self-vibration cavitation cavity and a diffusion pipe. The angle of the swirl blades of the spiral flow guide section and the hollow spiral flow guide section is 30-50 degrees, and the spiral flow guide section is positioned below the hollow spiral flow guide section; the axis of the hollow spiral diversion section is provided with a hollow channel, and the upper part of the hollow spiral diversion section is connected with the air inlet cavity; an air inlet hole is formed in the wall surface of the air inlet cavity; the upper part of the air inlet cavity is connected with the self-vibration cavitation cavity; the cavity wall of the self-vibration cavitation cavity is provided with a tangential suction inlet, and a guide plate is arranged at the tangential suction inlet; the tangential included angle of the guide plate is 10-20 degrees; the lower end of the diffusion tube is connected with the upper end of the self-vibration cavitation cavity. The invention has simple structure and high efficiency, can form the conventional fluid into strong spiral flow, and the strong spiral fluid generates gas-liquid separation under the action of centrifugal force, so that the split-phase flow is beneficial to improving the flow speed, more effectively promotes the generation of cavitation bubbles in the self-vibration cavitation cavity, and accelerates the formed cavitation bubbles to be ejected out, thereby further improving the cavitation efficiency.
Description
Technical Field
The invention belongs to the technical field of hydrodynamic cavitation, and particularly relates to a rotational flow pulse cavitation device which is suitable for oilfield drilling exploitation.
Background
Hydrodynamic cavitation is the process of subjecting a liquid to the movement of molecules of a gas, which, after impact by the gas into the liquid, has a collection of suspended gas-phase microbubbles called "nuclei". When the pressure in the liquid falls below the air separation pressure, these nuclei dissolved in the liquid are rapidly separated therefrom to generate a large number of bubbles. When these gases enter the high pressure region with the liquid flow, with the collapse of the bubbles, the fluid particles move at high velocity toward the center of the cavity to produce a strong impact, with the result that the instantaneous local pressure rises sharply, a phenomenon known as cavitation. Since this phenomenon was found, the industrial field is basically plagued by negative effects of cavitation effect, so people are always looking for how to apply this effect positively to the industrial field by utilizing energy brought by cavitation effect. Cavitation has been widely used in various industries such as petrochemical industry, shale exploitation, industrial cleaning, and a variety of cavitation generation devices.
With the deep research of cavitation technology, the application field is wider, the structural style of cavitation devices is various, however, how to improve cavitation effect by using a simple structure, and increase cavitation energy and generation of cavitation bubbles are always the focus of research.
Disclosure of Invention
The invention aims at the defects of the prior art and provides the rotational flow pulse cavitation device which has a simple structure and high efficiency and improves the cavitation bubble generation and cavitation efficiency.
The technical scheme of the invention is as follows:
a rotational flow pulse cavitation device comprises a spiral flow guide section, a hollow spiral flow guide section, an air inlet cavity, a self-vibration cavitation cavity and a diffusion pipe. The angle of the swirl blades of the spiral flow guide section and the hollow spiral flow guide section is 30-50 degrees, and the spiral flow guide section is positioned below the hollow spiral flow guide section; the axis of the hollow spiral diversion section is provided with a hollow channel, and the upper part of the hollow spiral diversion section is connected with the air inlet cavity; the wall surface of the air inlet cavity is provided with an air inlet hole, and the upper part of the air inlet cavity is connected with the self-vibration cavitation cavity; the wall surface of the self-vibration cavitation cavity is provided with a tangential suction inlet, and a guide plate is arranged at the suction inlet; the tangential included angle of the guide plate is 10-20 degrees; the lower end of the diffusion tube is connected with the upper end of the vibration cavity.
The rotational flow pulse cavitation generation device has the following action mechanism:
s1: after fluid enters a spiral guide section under a certain pressure, spiral flow is formed under the action of a 40-DEG rotational flow blade, and the spiral flow is acted by centrifugal force in the rising process to perform gas-liquid separation for the first time;
s2: after gas-liquid separation is generated by the spiral fluid, a liquid phase moves along the wall surface of the shaft, a gas phase moves along the center of the shaft, and the gas phase fluid rising along the center of the shaft enters the self-vibration cavitation cavity after passing through a hollow channel and an air inlet cavity of the hollow spiral diversion section;
s3: the liquid phase rising along the wall surface of the shaft is subjected to gas-liquid separation again through the 40-degree swirl blades of the hollow spiral diversion section, the liquid phase continues to rise along the wall surface of the shaft, and the gas phase enters the self-vibration cavitation cavity through the gas inlet cavity;
s4, the high-speed ascending air flow enters the self-vibration cavitation cavity to form high-speed shearing air flow. The self-vibration cavitation cavity wall is provided with a tangential suction inlet, high-speed airflow passes through the self-vibration cavitation cavity, negative pressure is generated in the cavity, liquid phase along the wall surface of a shaft passes through the suction inlet and is sucked into the self-vibration cavitation cavity in a tangential direction under the action of a 15-degree guide plate, the tangentially rotating liquid phase generates cavitation effect in the cavity under the action of high-speed shearing airflow, more cavitation bubbles are more easily generated, the self-vibration cavitation cavity can change continuous jet flow into pulse jet flow, and the generated cavitation bubbles are further sprayed out through a diffusion pipe in an accelerating way, so that the fluid speed is further improved, and the cavitation effect is improved.
Compared with the prior art, the invention has the following advantages:
1. through the structural design of the double-spiral section, the conventional fluid forms strong spiral flow, the strong spiral fluid generates gas-liquid separation under the action of centrifugal force, the split-phase flow is beneficial to improving the flow speed, and the high-speed airflow is more beneficial to the generation of cavitation bubbles.
2. The tangential suction inlet and the guide plate are arranged on the cavity wall of the self-vibration cavitation cavity, the high-speed airflow passes through the self-vibration cavitation cavity, negative pressure is generated in the cavity, liquid phase along the wall surface is sucked into the self-vibration cavitation cavity through the suction inlet after passing through the guide plate, and liquid phase fluid moving in a tangential manner is easier to generate a large number of cavitation bubbles in the cavity under the shearing action of the high-speed airflow.
3. The self-vibration cavitation cavity changes the continuous jet into a pulse jet, so that the cavitation speed and the generation of cavitation bubbles are further improved. The external suction type self-vibration cavitation cavity is favorable for forming cavitation bubbles, and improves the cavitation efficiency, thereby further improving the cavitation efficiency.
4. The invention has simple structure, low cost and wider drilling and production range.
Drawings
FIG. 1 is a schematic diagram of a semi-sectional structure of a vortex pulse cavitation device of the present invention;
FIG. 2 is a schematic structural view of the self-oscillating cavitation chamber of the present invention;
FIG. 3 is a schematic view of section A-A of FIG. 2;
wherein, 1, spiral diversion section; 2. a hollow spiral diversion section; 3. an air inlet cavity; 4. a self-vibration cavitation chamber; 401 deflector; 5. a diffusion tube.
Detailed Description
The following describes in detail a specific embodiment of the present invention with reference to the drawings, but the present invention is not limited to this example.
As shown in fig. 1, 2 and 3, the rotational flow pulse cavitation device of the invention has the following action mechanism:
1: after fluid enters the spiral guide section 1 under a certain pressure, spiral flow is formed under the action of 40-degree swirl blades, and the spiral flow is acted by centrifugal force in the rising process to perform gas-liquid separation for the first time; 2: after gas-liquid separation is generated by the spiral fluid, a liquid phase moves along the wall surface of the shaft, a gas phase moves along the center of the shaft, and the gas phase fluid rising along the center of the shaft enters the self-vibration cavitation cavity 4 after passing through the hollow channel of the hollow spiral diversion section 2 and the air inlet cavity 3; 3: the liquid phase rising along the wall surface of the shaft is subjected to gas-liquid separation again through the 40-degree swirl blades of the hollow spiral diversion section 2, the liquid phase continues to rise along the wall surface of the shaft, and the gas phase enters the self-vibration cavitation cavity 4 through the gas inlet cavity 3; 4: the high-speed ascending air flow enters the self-vibration cavitation cavity 4 to form high-speed shearing air flow. The cavity wall of the self-vibration cavitation cavity 4 is provided with a tangential suction inlet, high-speed airflow passes through the self-vibration cavitation cavity 4, negative pressure is generated in the cavity, liquid phase along the wall surface of a shaft passes through the suction inlet and is tangentially sucked into the self-vibration cavitation cavity 4 under the action of a 15-degree guide plate 401, liquid phase fluid which tangentially rotates generates cavitation effect in the cavity under the action of high-speed shearing airflow, more cavitation bubbles are more easily generated, the self-vibration cavitation cavity 4 can change continuous jet flow into pulse jet flow, and the generated cavitation bubbles are further accelerated to be ejected through a diffusion pipe 5, so that the fluid speed is further improved, and the cavitation effect is improved.
Claims (1)
1. The swirl pulse cavitation device is characterized by mainly comprising a spiral flow guide section (1), a hollow spiral flow guide section (2), an air inlet cavity (3), a self-vibration cavitation cavity (4) and a diffusion pipe (5), wherein the swirl blade angles of the spiral flow guide section (1) and the hollow spiral flow guide section (2) are 30-50 degrees, and the spiral flow guide section (1) is positioned below the hollow spiral flow guide section (2); the axis of the hollow spiral flow guide section (2) is provided with a hollow channel, and the upper part of the hollow spiral flow guide section (2) is connected with the air inlet cavity (3); an air inlet hole is formed in the wall surface of the air inlet cavity (3), and the upper part of the air inlet cavity (3) is connected with the self-vibration cavitation cavity (4); the cavity wall of the self-vibration cavitation cavity (4) is provided with a tangential suction inlet, and a guide plate (401) is arranged at the tangential suction inlet; the tangential included angle of the guide plate (401) is 10-20 degrees; the lower end of the diffusion tube (5) is connected with the upper end of the self-vibration cavitation cavity (4).
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| CN115074518B (en) * | 2022-06-28 | 2023-09-22 | 江苏大学 | Cavitation spiral jet blind hole inner surface post-treatment device and method |
| CN116446810B (en) * | 2023-06-16 | 2024-01-26 | 西南石油大学 | Intermittent type formula oscillation cavitation device |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4127332A (en) * | 1976-11-19 | 1978-11-28 | Daedalean Associates, Inc. | Homogenizing method and apparatus |
| GB2096911A (en) * | 1981-04-21 | 1982-10-27 | Simpkins David Rogers Price | Atomizer |
| US5542486A (en) * | 1990-09-04 | 1996-08-06 | Ccore Technology & Licensing Limited | Method of and apparatus for single plenum jet cutting |
| RU2143314C1 (en) * | 1998-02-03 | 1999-12-27 | Общество с ограниченной ответственностью "Лукойл-Пермнефтеоргсинтез" | Gas-liquid reactor |
| JP2002085949A (en) * | 2000-09-13 | 2002-03-26 | Asupu:Kk | Device for generating superfine air bubble |
| WO2007040423A1 (en) * | 2005-10-05 | 2007-04-12 | Indus Kashipovich Shamatov | Method for realising energy by means o a reciprocating motion and a device for converting and releasing energy in liquid media |
| JP2012045537A (en) * | 2010-08-28 | 2012-03-08 | Anemosu:Kk | Jet nozzle |
| CN207017988U (en) * | 2017-06-01 | 2018-02-16 | 中石化石油工程技术服务有限公司 | A kind of multistage self-excited pulse cavitation pressure break matches somebody with somebody liquid rifle |
| WO2018091059A1 (en) * | 2016-11-16 | 2018-05-24 | Schulze Isfort, Alfons | Method for sterilizing and purifying liquid media and method for separating solid and liquid constituents of a solid-liquid mixture and device for implementing the methods |
| CN108671876A (en) * | 2018-07-16 | 2018-10-19 | 山东绿色自由基科技研究中心 | A kind of multiphase flow heterogeneous catalytic reaction device |
| CN109529738A (en) * | 2018-11-19 | 2019-03-29 | 常州大学 | A kind of eddy flow cavitation apparatus |
| CN109974355A (en) * | 2019-04-16 | 2019-07-05 | 西北工业大学 | A kind of gas-liquid separator |
| RU2736287C1 (en) * | 2019-11-01 | 2020-11-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" | Microreactor with swirled reagent solution streams |
| CN111977774A (en) * | 2020-08-17 | 2020-11-24 | 青岛净天环保科技有限公司 | Multiphase flow rotational flow cavitation reaction device, sewage treatment system and method |
| WO2021126068A1 (en) * | 2019-12-17 | 2021-06-24 | Kujtim Hyseni | Gas generator and cavitator for gas generation |
| CN113236214A (en) * | 2021-06-05 | 2021-08-10 | 西南石油大学 | Self-excitation type pulse type vortex underground discharging and extracting tool |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009034977B4 (en) * | 2009-07-28 | 2011-07-21 | Technische Universität München, 80333 | Cavitation reactor and a method for the hydrodynamic generation of homogeneous, oscillating cavitation bubbles in a fluid, a method for disinfecting a fluid and a method for emulsifying or suspending or for the reaction favoring at least two substances |
| US8424597B2 (en) * | 2009-09-28 | 2013-04-23 | Guy Morrison | Downhole gas and liquid separation |
-
2021
- 2021-12-30 CN CN202111644057.1A patent/CN114307899B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4127332A (en) * | 1976-11-19 | 1978-11-28 | Daedalean Associates, Inc. | Homogenizing method and apparatus |
| GB2096911A (en) * | 1981-04-21 | 1982-10-27 | Simpkins David Rogers Price | Atomizer |
| US5542486A (en) * | 1990-09-04 | 1996-08-06 | Ccore Technology & Licensing Limited | Method of and apparatus for single plenum jet cutting |
| RU2143314C1 (en) * | 1998-02-03 | 1999-12-27 | Общество с ограниченной ответственностью "Лукойл-Пермнефтеоргсинтез" | Gas-liquid reactor |
| JP2002085949A (en) * | 2000-09-13 | 2002-03-26 | Asupu:Kk | Device for generating superfine air bubble |
| WO2007040423A1 (en) * | 2005-10-05 | 2007-04-12 | Indus Kashipovich Shamatov | Method for realising energy by means o a reciprocating motion and a device for converting and releasing energy in liquid media |
| JP2012045537A (en) * | 2010-08-28 | 2012-03-08 | Anemosu:Kk | Jet nozzle |
| WO2018091059A1 (en) * | 2016-11-16 | 2018-05-24 | Schulze Isfort, Alfons | Method for sterilizing and purifying liquid media and method for separating solid and liquid constituents of a solid-liquid mixture and device for implementing the methods |
| CN207017988U (en) * | 2017-06-01 | 2018-02-16 | 中石化石油工程技术服务有限公司 | A kind of multistage self-excited pulse cavitation pressure break matches somebody with somebody liquid rifle |
| CN108671876A (en) * | 2018-07-16 | 2018-10-19 | 山东绿色自由基科技研究中心 | A kind of multiphase flow heterogeneous catalytic reaction device |
| CN109529738A (en) * | 2018-11-19 | 2019-03-29 | 常州大学 | A kind of eddy flow cavitation apparatus |
| CN109974355A (en) * | 2019-04-16 | 2019-07-05 | 西北工业大学 | A kind of gas-liquid separator |
| RU2736287C1 (en) * | 2019-11-01 | 2020-11-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" | Microreactor with swirled reagent solution streams |
| WO2021126068A1 (en) * | 2019-12-17 | 2021-06-24 | Kujtim Hyseni | Gas generator and cavitator for gas generation |
| CN111977774A (en) * | 2020-08-17 | 2020-11-24 | 青岛净天环保科技有限公司 | Multiphase flow rotational flow cavitation reaction device, sewage treatment system and method |
| CN113236214A (en) * | 2021-06-05 | 2021-08-10 | 西南石油大学 | Self-excitation type pulse type vortex underground discharging and extracting tool |
Non-Patent Citations (5)
| Title |
|---|
| 围压下自振空化射流冲蚀性能实验研究;易灿等;实验力学;全文 * |
| 基于自激振荡脉冲效应的雾化喷嘴出口流道空化特性研究;汪朝晖;胡亚男;廖振方;高全杰;陈思;;机械工程学报(14);全文 * |
| 气液同轴自激振荡式雾化喷嘴设计与流场分析;汪朝晖;潘正江;曾立;高全杰;邓晓刚;;机械设计与研究(02);全文 * |
| 空化水射流理论和应用研究;管金发;邓松圣;雷飞东;武建军;张攀锋;;石油化工应用(12);全文 * |
| 自激振动空化射流喷嘴的设计与实验研究;卢晓江，李辉;天津科技大学学报;第24卷(第6期);全文 * |
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