阅读说明：本技术 一种往复式液体空化装置 (Reciprocating liquid cavitation device ) 是由 王志刚 杨科伟 虞南平 于 2020-12-04 设计创作，主要内容包括：本发明涉及液体预处理技术领域,尤其是涉及一种往复式液体空化装置,包括：壳体；沿壳体内部的轴向方向设置的第一节流孔板以及第二节流孔板,所述第一节流孔板及第二节流孔板将壳体内部分割为旋流腔室、混流腔室以及空化腔室；设置于所述混流腔室内的导流装置；设置于所述旋流腔室内的驱动装置；穿过所述壳体、第一节流孔板以及第二节流孔板使旋流腔室与外界相通的进液管；开设于所述壳体侧壁的出液口。本发明的产品在设计中采用模块化结构,设备结构紧凑。使产品易于运输、安装。与相同液体空化装置相比较,是一种高效、节能、环保产品。并将降低能源成本,提高显着的经济效益。(The invention relates to the technical field of liquid pretreatment, in particular to a reciprocating liquid cavitation device, which comprises: a housing; the first throttling orifice plate and the second throttling orifice plate are arranged along the axial direction in the shell and divide the interior of the shell into a rotational flow chamber, a mixed flow chamber and a cavitation chamber; the flow guide device is arranged in the flow mixing cavity; the driving device is arranged in the rotational flow chamber; the liquid inlet pipe penetrates through the shell, the first throttling orifice plate and the second throttling orifice plate to enable the rotational flow chamber to be communicated with the outside; a liquid outlet arranged on the side wall of the shell. The product of the invention adopts a modular structure in design, and the equipment structure is compact. The product is easy to transport and install. Compared with the same liquid cavitation device, the device is a high-efficiency, energy-saving and environment-friendly product. And will reduce the energy cost and improve the obvious economic benefit.)

1. A reciprocating liquid cavitation device, comprising:

a housing;

the first throttling orifice plate and the second throttling orifice plate are arranged along the axial direction in the shell and divide the interior of the shell into a rotational flow chamber, a mixed flow chamber and a cavitation chamber;

the flow guide device is arranged in the flow mixing cavity;

the driving device is arranged in the rotational flow chamber;

the liquid inlet pipe penetrates through the shell, the first throttling orifice plate and the second throttling orifice plate to enable the rotational flow chamber to be communicated with the outside;

a liquid outlet arranged at the side of the shell.

2. The reciprocating liquid cavitation device of claim 1, wherein the flow directing device includes a primary flow directing nozzle and a secondary flow directing nozzle, the primary flow directing nozzle spanning between the first orifice plate and the second orifice plate and communicating with the swirl chamber and the cavitation chamber, respectively;

one end of the secondary flow guide nozzle is fixed on the second throttling orifice plate and communicated with the cavitation chamber, and the other end of the secondary flow guide nozzle is communicated with the mixed flow chamber.

3. The reciprocating liquid cavitation device as claimed in claim 1, wherein the driving device includes a transmission shaft and a turbine, the turbine is fixedly connected with one end of the transmission shaft and is disposed in the swirling chamber, the other end of the transmission shaft is fixedly connected with an output shaft of an external motor, and the transmission shaft is in dynamic seal with the housing.

4. The reciprocating liquid cavitation device of claim 1 wherein the liquid inlet pipe is statically sealed to the housing, the first orifice plate, and the second orifice plate.

5. The reciprocating liquid cavitation device of claim 1 wherein the liquid outlet includes a primary liquid outlet disposed in a side wall of the cavitation chamber and a secondary liquid outlet disposed in a side wall of the mixing chamber.

6. The reciprocating liquid cavitation device as claimed in claim 2, wherein the primary and/or secondary diversion nozzles are of venturi and/or laval nozzle configuration.

7. The reciprocating liquid cavitation device as claimed in claim 2 or 6, wherein the number of the primary and secondary diversion nozzles is the same and is evenly spaced around the liquid inlet pipe.

Technical Field

The invention relates to the technical field of liquid pretreatment, in particular to a reciprocating liquid cavitation device.

Background

Characteristics of liquid cavitation: cavitation-english is "Cavitation" (from latin. Cavitas-cavities). Cavitation is a phenomenon in which the internal pressure of a liquid changes when the liquid is dynamic. When the internal pressure of the liquid drops to the vapor pressure value, the liquid is locally vaporized to form cavities (cavitation bubbles or cavities). When the pressure rises above the saturated steam pressure value-the air bubbles collapse, causing boiling. The molecular bond of the liquid is broken rapidly, and strong shock waves generated by high temperature and high pressure of local area points are formed, so that huge energy is released.

It is known that, in the application of fluid cavitation technology, the most common liquid cavitation device, mostly a disposable liquid cavitation treatment, has no obvious effect. Multiple cycles of cavitation are required to complete the liquid treatment process. The liquid cavitation device has generally low efficiency, long cavitation time and large energy consumption.

Disclosure of Invention

The invention discloses a multifunctional 'reciprocating liquid cavitation device' for a liquid treatment process based on a liquid cavitation mechanism. The two-stage cavitation liquid method is adopted, so that the liquid medium treated by the method achieves better effect. Is used for solving the technical problem of the existing liquid cavitation effect.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a reciprocating liquid cavitation device comprising:

a housing;

the first throttling orifice plate and the second throttling orifice plate are arranged along the axial direction in the shell and divide the interior of the shell into a rotational flow chamber, a mixed flow chamber and a cavitation chamber;

the flow guide device is arranged in the flow mixing cavity;

the driving device is arranged in the rotational flow chamber;

the liquid inlet pipe penetrates through the shell, the first throttling orifice plate and the second throttling orifice plate to enable the rotational flow chamber to be communicated with the outside;

a liquid outlet arranged on the side wall of the shell.

Furthermore, the flow guide device comprises a first-stage flow guide nozzle and a second-stage flow guide nozzle, and the first-stage flow guide nozzle is transversely erected between the first throttling orifice plate and the second throttling orifice plate and is respectively communicated with the rotational flow chamber and the cavitation chamber;

one end of the secondary flow guide nozzle is fixed on the second throttling orifice plate and communicated with the cavitation chamber, and the other end of the secondary flow guide nozzle is communicated with the mixed flow chamber.

Furthermore, the driving device comprises a transmission shaft and a turbine, the turbine is fixedly connected with one end of the transmission shaft and arranged in the rotational flow cavity, the other end of the transmission shaft is fixedly connected with an output shaft of an external motor, and the transmission shaft and the shell are in dynamic sealing.

Furthermore, static sealing is carried out between the liquid inlet pipe and the shell, between the liquid inlet pipe and the first throttling orifice plate and between the liquid inlet pipe and the second throttling orifice plate.

Further, the liquid outlet includes set up in the one-level liquid outlet of cavitation cavity lateral wall and set up in the second grade liquid outlet of mixed flow cavity lateral wall.

Furthermore, the structure adopted by the first-stage flow guide nozzle and the second-stage flow guide nozzle is a Venturi tube structure or a Laval nozzle structure.

Furthermore, the primary flow guide nozzles and the secondary flow guide nozzles are arranged in the same number and are uniformly arranged around the liquid inlet pipe at intervals.

In summary, compared with the conventional technical means, the technical scheme of the invention has the following beneficial effects:

1. the product of the invention is suitable for treatment processes in the fields of water purification, sewage and the like, is beneficial to activation of liquid medium through the action of liquid cavitation, leads to the generation of oxidation and recombination of free radicals, changes the physical and chemical properties of the liquid, promotes the degradation of organic matters (sterilization and algae removal), simplifies the water treatment process flow, improves the water quality and improves the efficiency.

2. When the product of the invention is applied to a produced liquid conveying pipeline system of an oil field, no additional heating is needed, and the crude oil in the system is subjected to cavitation treatment, so that the structure is more uniform, the viscosity is reduced, the deposition process of paraffin on the pipe wall is obviously slowed down, and the load of a conveying pump is reduced. Greatly reducing the energy consumption.

3. The product of the invention can heat various liquids, has high heat conversion rate, is suitable for the field of thermal engineering, and has simple structure, safety and reliability.

4. The product of the invention adopts a modular structure in design, and the equipment structure is compact. The product is easy to transport and install. Compared with the same liquid cavitation device, the device is a high-efficiency, energy-saving and environment-friendly product. And will reduce the energy cost and improve the obvious economic benefit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings while paying inventive efforts.

FIG. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a sectional view taken along line a-a of fig. 1.

Wherein:

1. the device comprises a shell, 11 parts of a rotational flow chamber, 12 parts of a mixed flow chamber, 13 parts of a cavitation chamber, 2 parts of a first orifice plate, 3 parts of a second orifice plate, 4 parts of a flow guide device, 41 parts of a first-stage flow guide nozzle, 42 parts of a second-stage flow guide nozzle, 5 parts of a driving device, 51 parts of a transmission shaft, 52 parts of a turbine, 6 parts of a liquid inlet pipe, 7 parts of a liquid outlet, 71 parts of a first-stage liquid outlet and 72 parts of a second-stage liquid outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further illustrated with reference to the following figures:

a reciprocating liquid cavitation device comprising:

a housing 1; the first orifice plate 2 and the second orifice plate 3 are arranged along the axial direction in the shell 1, and the first orifice plate 2 and the second orifice plate 3 divide the interior of the shell 1 into a rotational flow chamber 11, a mixed flow chamber 12 and a cavitation chamber 13; the flow guide device 4 is arranged in the mixed flow chamber 12; a drive device 5 disposed in the swirling chamber 11; the liquid inlet pipe 6 penetrates through the shell 1, the first throttling orifice plate 2 and the second throttling orifice plate 3 to enable the cyclone chamber 11 to be communicated with the outside; a liquid outlet 7 arranged on the side wall of the shell 1.

In the reciprocating type liquid cavitation device, the housing 1 is preferably cylindrical, and the cross-sectional shape may be circular to achieve better implementation. The first orifice plate 2 and the second orifice plate 3 are fixed in the housing 1, and in one or more embodiments, welding or integral molding or other various fixing connection methods may be selected. Preferably, the center line of the liquid inlet pipe 6 should be flush with the center line of the driving device 5 for best implementation. The shell 1 is of a steel pipe type, and the first throttling orifice plate 2 and the second throttling orifice plate 3 are circular plates.

After entering the cyclone chamber 11 from the liquid inlet pipe 6, the external liquid enters the cavitation chamber after being cavitated by the first-stage flow guide nozzle 41 and enters the mixed flow chamber 12 through the second-stage flow guide nozzle 42, so that secondary cavitation is completed, the treated liquid medium achieves a better effect, and multiple cycles or multiple groups of cavitation equipment are not needed for cavitation operation. High cavitation efficiency, short time and low energy consumption.

The flow guiding device 4 comprises a first-stage flow guiding nozzle 41 and a second-stage flow guiding nozzle 42, wherein the first-stage flow guiding nozzle 41 is transversely arranged between the first throttling orifice plate 2 and the second throttling orifice plate 3 and is respectively communicated with the swirling flow chamber 11 and the cavitation chamber; one end of the secondary flow guide nozzle 42 is fixed on the second orifice plate 3 and communicated with the cavitation chamber, and the other end is communicated with the mixed flow chamber 12. The first-stage flow guide nozzle 41 and the second-stage flow guide nozzle 42 are of a venturi tube structure or a laval nozzle structure.

The driving device 5 comprises a transmission shaft 51 and a turbine 52, the turbine 52 is fixedly connected with one end of the transmission shaft 51 and is arranged in the cyclone chamber 11, the other end of the transmission shaft 51 is fixedly connected with an output shaft of an external motor, and the transmission shaft 51 and the shell 1 are in dynamic sealing.

In the above-mentioned guiding device 4, the motor is used as a power source, the turbine 52 is driven by the motor to rotate at a high speed, the liquid generates a strong centrifugal force through the action (kinetic energy) of the turbine 52, the liquid is firstly sucked into the cyclone chamber 11 (high-pressure region) through the liquid inlet pipe 6 (negative-pressure region), and the liquid forms a high-pressure turbulent flow in the cyclone chamber 11. Then, the liquid passes through the first-stage nozzle 41 of the cavitation device at high pressure and enters the cavitation chamber (low-pressure region). At the moment when the internal pressure of the liquid drops sharply, the cavitation bubbles collapse (collapse), and the liquid generates cavitation effect during the flow process. At this point, the liquid releases a portion of the energy so that the liquid is heated.

Similarly, the liquid after the primary cavitation in the cavitation chamber enters the mixed flow chamber 12 with a smaller pressure through the secondary guide nozzle 42, and at the moment when the internal pressure of the liquid is sharply reduced, the cavitation bubbles are generated, broken, and disappear (collapse) to form secondary cavitation. After the secondary cavitation is completed, the liquid further releases energy, so that the liquid is further heated.

Referring to fig. 1, the flow guiding device 4 is a laval nozzle or a venturi tube, and the front half part of the laval nozzle is contracted from big to small to a narrow throat. The narrow throat is expanded from small to large to the arrow bottom. The liquid in the arrow body flows into the front half of the nozzle under high pressure, passes through the narrow throat and escapes from the rear half. The structure can change the speed of the airflow due to the change of the spray cross section area, so that the liquid is accelerated from subsonic speed to sonic speed to supersonic speed. The venturi principle is similar to that of a laval nozzle.

And the liquid inlet pipe 6 is statically sealed with the shell 1, the first throttling orifice plate 2 and the second throttling orifice plate 3. In the specific implementation process, the contact part is welded in a gap mode so as to achieve a better sealing effect and prevent non-cavitated liquid from permeating into the mixed flow chamber 12.

The liquid outlet 7 comprises a first-stage liquid outlet 17 arranged on the side wall of the cavitation chamber and a second-stage liquid outlet 27 arranged on the side wall of the mixed flow chamber 12. It can be known from the aforementioned flow guiding device 4 that the cavitation cavity 13 and the mixed flow cavity respectively store the liquid after the primary and secondary cavitations. According to different working conditions, the primary liquid outlet 17 or the secondary liquid outlet 27 can be selected to respectively pump out liquid subjected to primary or secondary cavitation so as to adapt to different working conditions.

The first-stage flow guide nozzles 41 and the second-stage flow guide nozzles 42 are arranged in the same number and are uniformly arranged around the liquid inlet pipe 6 at intervals. According to the arrangement mode, liquid can more rapidly enter the mixed flow cavity 12 during secondary cavitation, and the working efficiency is improved.

The invention provides a reciprocating liquid cavitation device which comprises: the structure of the device adopts two stages of throttling orifice plates and a bidirectional flow guide nozzle assembly, and has the necessary conditions and dynamic process for continuous cavitation of liquid. The cavitation effect of the liquid is relatively improved and strengthened.

The reciprocating liquid cavitation device provided by the invention has wide application range:

the method can be used for the emulsification treatment process of liquid homogenization and non-homogeneity, and the emulsification treatment process of the liquid is accelerated under the action of cavitation high pressure and micro-jet.

The cavitation effect can be used for disinfecting the pretreatment of purified water and sewage. The instant of bubble collapse during cavitation of the liquid results in the destruction of the microbial membrane, and the breakdown of the components of the organic material helps to eliminate bacteria and viruses.

The cavitation effect can be utilized to break the long polymer chains in the petroleum products and convert the long polymer chains into a new structural state, which is beneficial to the transportation and secondary processing of the petroleum products.

The energy released by liquid cavitation can be converted into heat, and the liquid (heat medium) container is linked and circularly heated for hot water and heating facilities.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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.