CN109574135B - Venturi and porous orifice plate combined cavitation device with adjustable relative positions - Google Patents
Venturi and porous orifice plate combined cavitation device with adjustable relative positions Download PDFInfo
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- CN109574135B CN109574135B CN201811509422.6A CN201811509422A CN109574135B CN 109574135 B CN109574135 B CN 109574135B CN 201811509422 A CN201811509422 A CN 201811509422A CN 109574135 B CN109574135 B CN 109574135B
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- 239000011148 porous material Substances 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 239000012530 fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a venturi and porous orifice plate combined cavitation device with an adjustable relative position, which comprises a venturi front section, a front section rectangular groove, a front section flange, a venturi rear section, a rear section rectangular groove, a rear section flange, bolts, nuts, a position adjusting cushion block group, a porous orifice plate, flange bolts and flange nuts, wherein the venturi front section rectangular groove is arranged on the front section of the venturi; the position adjusting cushion block group and the porous orifice plate are arranged in the rectangular groove formed by splicing the front part of the venturi tube section and the rear part of the venturi tube section, bolts penetrate the rectangular groove, the position adjusting cushion block group and the orifice plate are overlapped with each other, the threaded holes are fixed by nuts, the flange bolts penetrate the front section flange and the rear section flange, the overlapped threaded holes are fixed by the flange nuts, the whole cavitation device is formed, the position of the porous orifice plate in the position adjusting cushion block group is adjusted, and the cavitation characteristics of the cavitation device can be changed. The invention has the advantages of wide application condition, convenient processing, material saving, complete protection of cavitation flow field and convenient realization of cleaning of internal elements.
Description
Technical Field
The invention relates to the technical field of venturi and orifice plate hydrodynamic cavitation, in particular to a venturi and porous orifice plate combined cavitation device with an adjustable relative position.
Background
The cavitation device is to treat water by utilizing the hydrodynamic cavitation technology, and the principle is that when water flows through the contraction device, the flow cross section is rapidly reduced, the water flow is increased in speed and reduced in pressure, and cavitation is generated when the pressure is reduced to the saturation pressure of the water at the temperature. The cavitation effect can directly influence the cavitation device efficiency, so that the selection of the structural parameters of the optimal composite cavitation device and the design of the high-efficiency cavitation device have important significance for industrial production and people's life.
A special porous pore plate is mounted in the throat of the Venturi cavitation device, namely a Venturi-porous pore plate combined cavitation device, wherein the important factors influencing the cavitation effect and cavitation position of the device are the relative positions of the porous pore plate in the throat of the Venturi tube. In the actual working process of the cavitation device, the requirements on cavitation effect, cavitation position and the like are variable, however, the relative position of a porous pore plate in a venturi tube cannot be adjusted by the conventional venturi porous pore plate composite type cavitation device at present, so that a plurality of groups of cavitation device test pieces are required to be processed in order to meet the requirements of different working conditions, the consumption of materials is large, and the input period is long. Therefore, a venturi and porous orifice plate combined cavitation device with adjustable relative positions becomes one of the keys of technical breakthrough in the field.
Disclosure of Invention
The invention mainly solves the technical problem of providing the venturi and porous orifice plate combined cavitation device with an adjustable relative position, which can enable the venturi and porous orifice plate combined cavitation device to be suitable for various working conditions of cavitation effect and cavitation position change.
In order to solve the technical problems, the invention adopts the following technical scheme:
the venturi and porous orifice plate combined cavitation device with the adjustable relative position comprises a venturi front section 1, a venturi rear section 2, a bolt a3, a bolt b4, a nut a5, a nut b6, a position adjusting cushion block group 7, a porous orifice plate 8, a flange bolt a31, a flange bolt b32, a flange bolt c33, a flange bolt d34, a flange nut a35, a flange nut b36, a flange nut c37 and a flange nut d38, wherein the throat of the venturi front section 1 is provided with an up-down symmetrical rectangular groove; the throat part of the front section 1 of the venturi tube comprises a front section rectangular groove a11, a front section rectangular groove b12 and a front section flange 13, and the throat part of the rear section 2 of the venturi tube comprises a rear section rectangular groove a21, a rear section rectangular groove b22 and a rear section flange 23; the position adjusting cushion block group 7 and the adjusting cushion blocks on the upper side and the lower side of the porous pore plate 8 are respectively arranged in the front section rectangular groove a11, the front section rectangular groove b12, the rear section rectangular groove a21 and the rear section rectangular groove b22 in a parallel and attached mode, the outer side faces of the position adjusting cushion block group are tightly attached to the inner walls of the rectangular grooves, the cambered surfaces opposite to each other in the middle of the upper and the lower position adjusting cushion blocks are overlapped with the cambered surfaces on the two sides of the throat of the venturi tube front section 1 and the cambered surfaces on the two sides of the throat of the venturi tube rear section 2 along the axial direction to form the inner wall of the throat cylinder cavity of the venturi tube section, and the circular pore plates on the middle of the porous pore plate 8 are arranged in the throat cylinder cavity according to the sequence of the inserting position adjusting cushion block group 7. The bolts a3 and b4 respectively penetrate into the rectangular grooves and the threaded holes of the position adjusting cushion block group 7, which are overlapped with the porous pore plate 8, and then are respectively fixed by the nuts a5 and b6, and the flange bolts a31, b32, c33 and d34 respectively penetrate into the threaded holes of the front section flange and the rear section flange, and then are respectively fixed by the flange nuts a35, b36, c37 and d 38.
The venturi tube front section 1 and the venturi tube rear section 2 are formed by vertically dividing a venturi tube section with an upper symmetrical rectangular cavity at the throat into equal parts along the central line of two long sides of the rectangular cavity of the throat, the rectangular cavity is communicated with the throat of the venturi tube, wherein the throat outer wall of the venturi tube front section 1 is formed by combining a front section rectangular groove a11, a front section rectangular groove b12, a front section flange 13 and the throat side outer wall, a threaded hole tightly matched with a bolt a3 is formed at the intersection point of the vertical bisectors of the long side and the wide side of the axial wall surface of the front section rectangular groove a11, a threaded hole tightly matched with a bolt a3 is formed at the intersection point of the vertical bisectors of the long side and the wide side of the axial wall surface of the front section rectangular groove b12, the front section flange 13 is a rectangular body with round chamfer, and threaded holes matched with a flange bolt a31, a flange bolt b32, a flange bolt c33 and a flange bolt d34 are respectively formed at the four round chamfer angles; the outer wall of the throat of the venturi tube rear section 2 is formed by combining a rear section rectangular groove a21, a rear section rectangular groove b22, a rear section flange 23 and a part of outer wall of the side face of the throat, a threaded hole which is tightly matched with a bolt a3 is formed at the intersection point of a long side and a wide side perpendicular bisector of the axial wall surface of the convergent section, a threaded hole which is tightly matched with a bolt b4 is formed at the intersection point of the long side and the wide side perpendicular bisector of the axial wall surface of the convergent section, the rear section rectangular groove b22 is right opposite to the axial wall surface of the convergent section, the rear section flange 23 is a rectangular body with round chamfers, and threaded holes which are matched with a flange bolt a31, a flange bolt b32, a flange bolt c33 and a flange bolt d34 are respectively formed at four round chamfers.
The position adjusting cushion block group 7 consists of an upper group of position adjusting cushion blocks and a lower group of position adjusting cushion blocks with the same structure, and each group comprises 19 cushion blocks; the upper cambered surfaces and the lower cambered surfaces of the two groups of position adjusting cushion blocks are cambered surfaces matched with the cambered surface of the throat part of the venturi tube section, the other surfaces are rectangular surfaces, and the thickness of each position adjusting cushion block is 1cm along the axis direction of the cambered surface arc center; screw holes with the depth of 1cm are formed in the positions, facing to the intersection point of the long side and the wide side perpendicular bisector of the side surface of the arc center axis direction, of each adjusting cushion block in the upper side adjusting cushion block group of the throat, screw holes with the depth of 1cm are formed in the positions, facing to the intersection point of the long side and the wide side perpendicular bisector of the side surface of the arc center axis direction, of each adjusting cushion block in the lower side adjusting cushion block group of the throat, screw holes with the depth of 1cm are formed in the positions, facing to the intersection point of the long side and the wide side perpendicular bisector of the side surface of the arc center axis direction, of each adjusting cushion block.
The middle part of the porous pore plate 8 is provided with a round porous Kong Banzhuang, the shape and structure of the upper part are the same as those of the position adjusting cushion block in the cushion block group at the upper side of the throat part of the position adjusting cushion block group 7, and the shape and structure of the lower part are the same as those of the position adjusting cushion block in the cushion block group at the lower side of the throat part of the position adjusting cushion block group 7.
The insertion position of the porous orifice plate 8 in the position adjusting cushion block group 7 can be adjusted, so that the function of changing the position of the porous orifice plate 8 in the throat of the venturi tube is realized.
The beneficial effects of the invention are as follows:
compared with a conventional Venturi porous plate composite cavitation device, the Venturi and porous plate composite cavitation device with the adjustable relative position provided by the invention has the advantages that the purpose of improving the cavitation effect of the device is achieved by adjusting the insertion position of the porous plate in the position adjusting cushion block group (namely, changing the position of the porous plate at the throat opening), a plurality of groups of cavitation device workpieces are replaced, the requirements of different working conditions on cavitation characteristics are met, the consumption is reduced, and the equipment investment service period is shortened; the upper and lower opposite cambered surfaces of the two groups of position adjusting cushion blocks and the inner wall of the side surface of the throat part of the venturi tube section form the inner wall of the cylindrical cavity of the throat part of the venturi tube section together, so that no interference is caused to the throat fluid, and the integrity of the flow field in the cavitation device is well protected; the whole cavitation device can be disassembled and reassembled, so that the cleaning and replacement of internal elements are facilitated.
Drawings
FIG. 1 is a front view of a venturi and porous orifice plate combined cavitation device with adjustable relative position in accordance with the present invention;
FIG. 2 is a rear view of a venturi and porous orifice plate combined cavitation device of the present invention with adjustable relative position;
FIG. 3 is a front cross-sectional view of a venturi and porous orifice plate combined cavitation device with adjustable relative position in accordance with the present invention;
FIG. 4 is a three-dimensional view of the front section of the venturi in a venturi and porous orifice plate combined cavitation device with adjustable relative positions in accordance with the present invention;
FIG. 5 is a three-dimensional view of the rear section of the venturi tube in a venturi and porous orifice plate combined cavitation device with adjustable relative positions in accordance with the present invention;
FIG. 6 is a three-dimensional view of the front section of the venturi tube in a venturi and porous orifice plate combined cavitation device with adjustable relative positions according to the present invention;
FIG. 7 is a three-dimensional view of the rear section of the venturi tube in a venturi and porous orifice plate combined cavitation device with adjustable relative positions according to the present invention;
FIG. 8 is a three-dimensional view of the internal structure of the front section of the venturi and porous orifice plate combined cavitation device with adjustable relative position according to the present invention;
FIG. 9 is a three-dimensional view of the internal structure of the rear section of the venturi and porous orifice plate combined cavitation device with adjustable relative position according to the present invention;
FIG. 10 is a three-dimensional view of a perforated orifice plate in a venturi and perforated orifice plate combination cavitation device of the present invention with adjustable relative positions;
FIG. 11 is a three-dimensional view of a single adjustment pad in a position adjustment pad set of a venturi and porous orifice plate combined cavitation device of the present invention with adjustable relative position;
FIG. 12 is an initial three-dimensional view of a position adjustment spacer block set and a porous orifice plate in a relatively adjustable venturi and porous orifice plate combined cavitation device of the present invention;
FIG. 13 is a three-dimensional view of the position-adjustable spacer block set and the porous orifice plate of the present invention after their relative positions are changed in a venturi and porous orifice plate combined cavitation device.
Detailed Description
The present invention is described in further detail below with reference to the drawings and detailed description so that advantages and features of the present invention can be more readily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
The invention relates to a venturi and porous orifice plate combined cavitation device with an adjustable relative position, which comprises a venturi front section 1, a venturi rear section 2, a bolt a3, a bolt b4, a nut a5, a nut b6, a position adjusting cushion block group 7, a porous orifice plate 8, a flange bolt a31, a flange bolt b32, a flange bolt c33, a flange bolt d34, a flange nut a35, a flange nut b36, a flange nut c37 and a flange nut d38; the throat part of the venturi tube front section 1 comprises a front section rectangular groove a11, a front section rectangular groove b12 and a front section flange 13, and the throat part of the venturi tube rear section 2 comprises a rear section rectangular groove a21, a rear section rectangular groove b22 and a rear section flange 23.
As a preferred embodiment of the present invention, as shown in fig. 1 and 2, the venturi front section 1 and the venturi rear section 2 are spliced to form a complete venturi section with upper and lower symmetrical rectangular cavities at the throat. As shown in fig. 8 and 9, the position adjusting cushion block group 7 and the upper and lower part type adjusting cushion block structures of the porous pore plate 8 are arranged in each rectangular groove on the venturi tube section after being spliced in parallel in a lamination manner, and the outer side surface of the position adjusting cushion block group is tightly laminated with the inner wall of the rectangular groove; the upper and lower opposite outer side surfaces of the two groups of position adjustment cushion blocks are arc surfaces matched with the arc shape of the throat side surface of the venturi tube section, the arc surfaces of the position adjustment cushion blocks are overlapped with the inner wall of the throat side surface along the axis direction of the tapered section to jointly form the cylindrical inner wall of the venturi tube Duan Houbu, the circular orifice plates in the middle of the porous orifice plate 8 are arranged in the cylindrical cavity of the throat according to the sequence of the inserting position adjustment cushion block groups 7, namely, the inserting position of the circular orifice plate-like structure in the middle of the porous orifice plate 8 in the throat of the venturi tube section can be adjusted by changing the arrangement sequence of the position adjustment cushion block groups 7. As shown in fig. 3, the screw holes of the left outer wall of the front section rectangular groove a11, the upper part of the position adjusting cushion block group 7, the upper part of the porous pore plate 8 and the right outer wall of the rear section rectangular groove a21 are overlapped, the bolt a3 penetrates through the screw holes in sequence and is matched and fixed by the nut a5, and the screw holes are far away from the throat, so that the screw-in assembly of the bolt is not influenced; the screw holes of the four parts of the left outer wall of the front rectangular groove b12, the lower part of the position adjusting cushion block group 7, the lower part adjusting cushion block of the porous pore plate 8 and the right outer wall of the rear rectangular groove b22 are overlapped, the bolt b4 sequentially penetrates into the screw holes and is matched and fixed by the nut b6, and the screw holes are far away from the throat, so that the screw-in assembly of the bolt is not influenced; after the bolt holes on the front section flange 13 and the rear section flange 23 are aligned and then respectively penetrated into the flange bolt a31, the flange bolt b32, the flange bolt c33 and the flange bolt d34, the bolt penetrating-out bolt hole parts are respectively matched and fixed with the flange nut a35, the flange nut b36, the flange nut c37 and the flange nut d38, so that the Venturi and porous orifice plate composite cavitation device with the adjustable whole relative position is formed.
The venturi tube front section 1 and the venturi tube rear section 2 are venturi tube sections with vertically symmetrical rectangular cavities at the throat parts, and are vertically split into equal parts along the central lines of two long sides of the rectangular cavities at the throat parts. Fig. 4 and 5 are three-dimensional views of the venturi front section 1 and the venturi rear section 2, respectively, wherein the upper rectangular groove of the venturi front section 1 is a front rectangular groove a11, the lower rectangular groove is a front rectangular groove b12, the notch flange is a front flange 13, the upper rectangular groove of the venturi rear section 2 is a rear rectangular groove a21, the lower rectangular groove is a rear rectangular groove b22, and the notch flange is a rear flange 23; as shown in fig. 6, the left-side diagonally shaded portion of the venturi front section 1 is a side outer wall of the throat, the other side is symmetrical and not shown, the right-side square shaded portion is a side inner wall of the throat, the other side is symmetrical and not shown, the large-line frame arrow indicates the long side of the front section rectangular groove a11 to be collinear with the long side of the front section rectangular groove b12, the broken line perpendicular to the side is a long-side perpendicular bisector, the small-line frame arrow indicates the wide side of the front section rectangular groove a11 to be parallel to the wide side of the front section rectangular groove b12, and the broken line perpendicular to the side is a wide-side perpendicular bisector; as shown in fig. 7, the right-side diagonally shaded portion of the rear section 2 of the venturi tube is a side outer wall of the throat portion, the other side is symmetrical and not shown, the left-side square shaded portion is a side inner wall of the throat portion, the other side is symmetrical and not shown, the large-line frame arrow indicates the long side of the rear section rectangular groove a21 to be collinear with the long side of the rear section rectangular groove b22, the broken line perpendicular to the side is a long-side perpendicular bisector, the small-line frame arrow indicates the wide side of the rear section rectangular groove a21 to be parallel to the wide side of the rear section rectangular groove b22, and the broken line perpendicular to the side is a wide-side perpendicular bisector; screw holes which are tightly matched with the bolt a3 are formed in the intersection points of the long side and the broad side perpendicular bisectors of the axial wall surfaces of the converging sections of the venturi tube in the front section rectangular groove a11 and the rear section rectangular groove a21, and screw holes which are tightly matched with the bolt b4 are formed in the intersection points of the long side and the broad side perpendicular bisectors of the axial wall surfaces of the converging sections of the venturi tube in the front section rectangular groove b12 and the rear section rectangular groove b 22; the front section flange 13 and the rear section flange 23 have the same structure and are rectangular with round chamfers, and threaded holes matched with the flange bolts a31, the flange bolts b32, the flange bolts c33 and the flange bolts d34 are respectively formed in the four round chamfers.
As shown in fig. 1, 3, 8 and 9, when the venturi front section 1 and the venturi rear section 2 are combined, the front rectangular groove a11 and the rear rectangular groove a21 are connected and communicated to form a rectangular groove at the upper part of the throat part of the venturi, the front rectangular groove b12 and the rear rectangular groove b22 are connected and communicated to form a rectangular groove at the lower part of the throat part of the venturi, the upper rectangular groove and the lower rectangular groove of the throat part are symmetrical in position and identical in structure, and the upper rectangular groove, the lower rectangular groove and the side wall of the middle part of the throat part jointly form a cavity with the same section as the porous orifice plate 8 for placing the position adjusting cushion block group 7 and the porous orifice plate 8.
The bolt a3 and the bolt b4 have the same structure, the whole length of the screw rod is provided with external threads, and the structure of the nut a5 and the nut b6 matched with the screw rod is the same; the flange bolts a31, b32, c33 and d34 are identical in structure, the screw is externally threaded in full length, the structures of the flange nuts a35, b36, c37 and d38 matched with the screw are identical, and flexible gaskets are arranged among the bolts and nuts, the flange bolts and the flange nuts and between the front section flange and the rear section flange.
FIG. 11 is a three-dimensional view of a single adjusting pad in the position adjusting pad set 7, wherein the lower surface of the single adjusting pad is an arc surface matched with the arc shape of the throat side wall of the venturi tube section, namely, the arc surface of the position adjusting pad, and the other surfaces are rectangular surfaces, namely, the side surfaces of the position adjusting pads, along the axial direction of the arc surface, the thickness of each position adjusting pad is 1cm, and standard threaded bottom holes which are tightly matched with bolts a3 and have the depth of 1cm are formed at the intersection points of the long sides, opposite to the side surfaces of the axial direction of the arc surface, of the adjusting pad, and the standard threaded bottom holes are formed at the intersection points of the long sides and the perpendicular bisectors of the wide sides, so that the arrangement sequence of the position adjusting pads in the pad set is changed, and the assembly of the whole cavitation device is not influenced; fig. 10 is a three-dimensional view of a porous orifice plate 8, wherein the cross section of the middle part of the porous orifice plate 8 is the same as the circular cross section of the outlet of the converging section of the venturi tube, a plurality of triangular through holes are formed in the cross section, the upper shape structure of the porous orifice plate 8 is the same as the position adjustment cushion in the cushion set at the upper side of the throat part of the position adjustment cushion set 7, the lower shape structure of the porous orifice plate 8 is the same as the position adjustment cushion in the cushion set at the lower side of the throat part of the position adjustment cushion set 7, and the thickness of the porous orifice plate 8 along the central axis direction is 1cm.
Referring to fig. 1, 12 and 13, the position adjustment cushion block group 7 is composed of position adjustment cushion blocks with the same structure, and is divided into an upper group and a lower group, 19 groups, and in the initial working condition, the position adjustment cushion blocks in the position adjustment cushion block group 7 and the porous pore plates 8 (the tops of the two are marked black) are arranged in a symmetrical rectangular groove according to the sequence of fig. 12, and the position adjustment cushion block group and other components form a venturi porous pore plate cavitation device shown in fig. 1; in order to meet the requirements of different external working conditions on the cavitation characteristics, the bolts a5, the nuts b6, the flange nuts a35, the flange nuts b36, the flange nuts c37 and the flange nuts d38 are sequentially released to fix the bolts a3, the bolts b4, the flange bolts a31, the flange bolts b32, the flange bolts c33 and the flange bolts d34, the bolts are sequentially pulled out, the venturi tube front section 1 and the venturi tube rear section 2 are split, and the position adjustment cushion block group 7 and the porous pore plate 8 are respectively taken out from the rectangular grooves; the insertion position of the porous orifice plate 8 (the top of which is marked black) in the position adjusting cushion block group 7 is changed according to the sequence of fig. 13, the porous orifice plate 8 is placed in rectangular grooves of the venturi tube front section 1 and the venturi tube rear section 2, the venturi tube front section 1 and the venturi tube rear section 2 are combined into a complete venturi tube section, a bolt a3 and a bolt b4 respectively penetrate into screw holes which are overlapped with each other in the upper rectangular groove and the lower rectangular groove, a flange bolt a31, a flange bolt b32, a flange bolt c33 and a flange bolt d34 penetrate into the flange screw holes in the front section and the rear section, finally, a venturi porous orifice plate cavitation device shown in fig. 1 is formed after the bolts are fixed by the nuts, the function of changing the relative position of the porous orifice plate 8 in the throat of the venturi tube section is achieved, and fig. 13 is one of the conditions of changing the relative position of the porous orifice plate 8 in the throat of the venturi tube section, and obviously, the position of the porous orifice plate 8 can be adjusted in a large range. When the porous orifice plate 8 is fixed at the position of the venturi tube throat part, when working fluid flows through the porous orifice plate 8, the flow section is contracted, the flow speed is increased, the pressure is reduced, cavitation bubbles are generated after cavitation, as the throat area behind the porous orifice plate 8 is longer, the cavitation bubbles can not sufficiently grow and develop in time, when the working fluid flows to the tail part of the venturi tube diffusion section, the cavitation intensity is low, the collapse position of the cavitation bubbles is dispersed, the energy effect is weaker, and the working fluid is suitable for working conditions with lower cavitation intensity requirements; when the porous pore plate 8 is fixed at the position behind the throat part of the venturi tube, as the throat area behind the porous pore plate 8 is shorter, the cavitation bubble generation position is close to the inlet of the diffusion section of the venturi tube, the growth and development are more complete, the cavitation intensity is high when flowing to the tail part of the diffusion section of the venturi tube, the cavitation bubble collapse position is concentrated, the energy effect is stronger, and the device is suitable for the working condition with higher cavitation intensity requirement. It can be seen that the position of the porous plate 8 has a greater influence on cavitation.
In summary, the position of the porous orifice plate in the throat part of the venturi tube section is changed by adjusting the insertion sequence of the porous orifice plate in the position adjustment cushion block group so as to achieve the aim of changing the cavitation effect of the device, so that the cavitation device can achieve good cavitation effect under different working conditions, and the consumption of materials and manpower in the processing process is reduced; the cushion blocks in the position adjusting cushion block group are mutually overlapped to form the throat part of the venturi tube section, so that the flow field in the throat part of the cavitation device is ensured to be free from interference; the whole cavitation device is convenient to detach and install, and cleaning and replacement of internal elements are easy to realize.
Claims (3)
1. The utility model provides a venturi and porous orifice plate combined type cavitation device of relative position adjustable which characterized in that: the venturi tube comprises a venturi tube front section (1) with vertical symmetrical rectangular grooves at the throat, a venturi tube rear section (2), a bolt a (3) penetrating through the rectangular grooves at the throat of the venturi tube, a bolt b (4), a nut a (5) matched with the bolt, a nut b (6), a position adjusting cushion block group (7), a porous pore plate (8), a flange bolt a (31), a flange bolt b (32), a flange bolt c (33), a flange bolt d (34), a flange nut a (35), a flange nut b (36), a flange nut c (37) and a flange nut d (38); the throat part of the front section (1) of the venturi tube comprises a front section rectangular groove a (11), a front section rectangular groove b (12) and a front section flange (13), and the throat part of the rear section (2) of the venturi tube comprises a rear section rectangular groove a (21), a rear section rectangular groove b (22) and a rear section flange (23); the position adjusting cushion block groups (7) and adjusting cushion blocks on the upper side and the lower side of the porous pore plate (8) are respectively arranged in the front section rectangular groove a (11), the front section rectangular groove b (12), the rear section rectangular groove a (21) and the rear section rectangular groove b (22) in a parallel and attached mode, the outer side surfaces of the position adjusting cushion block groups are tightly attached to the inner walls of the rectangular grooves, the cambered surfaces opposite to the middle of the upper side and the lower side of the position adjusting cushion blocks are overlapped with the cambered surfaces on the two sides of the throat of the front section (1) of the venturi tube along the axial direction, and the cambered surfaces on the two sides of the throat of the rear section (2) of the venturi tube together form the inner walls of a cylindrical cavity of the throat part of the venturi tube section; the middle circular orifice plate of the porous orifice plate (8) is arranged in the throat cylinder cavity according to the sequence of inserting the position adjustment cushion block group (7), after the bolts a (3) and the bolts b (4) penetrate into the rectangular grooves and the position adjustment cushion block group (7) are overlapped with the threaded holes of the porous orifice plate (8), the bolts a (5) and the nuts b (6) are respectively fixed, and after the flange bolts a (31), the flange bolts b (32), the flange bolts c (33) and the flange bolts d (34) penetrate into the threaded holes of the front section flange and the rear section flange, the bolts a (35), the flange nuts b (36), the flange nuts c (37) and the flange nuts d (38) are respectively fixed; the middle part of the porous pore plate (8) is provided with a round porous Kong Banzhuang, the shape and structure of the upper part are the same as those of the position adjusting cushion block in the cushion block group at the upper side of the throat part of the position adjusting cushion block group (7), and the shape and structure of the lower part are the same as those of the position adjusting cushion block in the cushion block group at the lower side of the throat part of the position adjusting cushion block group (7); the insertion position of the porous pore plate (8) in the position adjusting cushion block group (7) can be adjusted, so that the function of changing the position of the porous pore plate (8) in the throat of the venturi tube is realized.
2. The adjustable relative position venturi and porous orifice plate composite cavitation device of claim 1, wherein: the venturi tube front section (1) and the venturi tube rear section (2) are respectively formed by vertically dividing a venturi tube section with a rectangular cavity with upper and lower symmetry at the throat part into equal parts along the central lines of two long sides of the rectangular cavity at the throat part, and the rectangular cavity is communicated with the throat part of the venturi tube; the outer wall of the throat of the venturi tube front section (1) is formed by combining a front section rectangular groove a (11), a front section rectangular groove b (12), a front section flange (13) and a side outer wall of the throat, a threaded hole which is tightly matched with a bolt a (3) is formed at the intersection point of a long side vertical bisector of an axial wall surface of the front section rectangular groove a (11) opposite to the tapered section, a threaded hole which is tightly matched with a bolt b (4) is formed at the intersection point of a long side vertical bisector of the axial wall surface of the front section rectangular groove b (12) opposite to the tapered section, the front section flange (13) is a rectangular body with round chamfer angles, and threaded holes which are respectively matched with a flange bolt a (31), a flange bolt b (32), a flange bolt c (33) and a flange bolt d (34) are formed at four round chamfer angles; the outer wall of the throat of the venturi tube rear section (2) is formed by combining a rear section rectangular groove a (21), a rear section rectangular groove b (22), a rear section flange (23) and the outer wall of the throat side, a threaded hole tightly matched with a bolt a (3) is formed at the intersection point of a long side vertical bisector and a wide side vertical bisector of the axial wall surface of the tapered section, a threaded hole tightly matched with a bolt b (4) is formed at the intersection point of the long side vertical bisector and the wide side vertical bisector of the axial wall surface of the tapered section, the rear section flange (23) is a rectangular body with round chamfers, and threaded holes matched with a flange bolt a (31), a flange bolt b (32), a flange bolt c (33) and a flange bolt d (34) are respectively formed in the four round chamfers.
3. The adjustable relative position venturi and porous orifice plate composite cavitation device of claim 1, wherein: the position adjusting cushion block group (7) consists of an upper group of position adjusting cushion blocks and a lower group of position adjusting cushion blocks with the same structure, and each group comprises 19 cushion blocks; the upper cambered surfaces and the lower cambered surfaces of the two groups of position adjusting cushion blocks are cambered surfaces matched with the cambered surface of the side surface of the throat part of the venturi tube section, the other surfaces are rectangular surfaces, and the thickness of each position adjusting cushion block is 1cm along the axis direction of the cambered surface arc center; a threaded hole with the depth of 1cm is formed in the intersection point of the long side, opposite to the side surface in the direction of the arc center axis, of each adjusting cushion block in the upper side adjusting cushion block set of the throat part, and the perpendicular bisector of the wide side, opposite to the side surface in the direction of the arc center axis, of each adjusting cushion block in the lower side adjusting cushion block set of the throat part, and a threaded hole with the depth of 1cm is formed in the intersection point of the long side, opposite to the side surface in the direction of the arc center axis, of the perpendicular bisector of the wide side, and is in close fit with a bolt b (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509422.6A CN109574135B (en) | 2018-12-11 | 2018-12-11 | Venturi and porous orifice plate combined cavitation device with adjustable relative positions |
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| CN201811509422.6A CN109574135B (en) | 2018-12-11 | 2018-12-11 | Venturi and porous orifice plate combined cavitation device with adjustable relative positions |
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| CN109574135B true CN109574135B (en) | 2023-10-24 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201997321U (en) * | 2010-12-21 | 2011-10-05 | 中国人民解放军军事医学科学院卫生装备研究所 | Hydraulic cavitation reactor |
| CN103193310A (en) * | 2013-03-13 | 2013-07-10 | 浙江工业大学 | Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber |
| CN104028134A (en) * | 2014-05-22 | 2014-09-10 | 西安交通大学 | Novel venturi mixer |
| BR202012000015U2 (en) * | 2012-01-02 | 2015-12-01 | Rubem Ioel Dotte Echart | hydrodynamic and hydrosonic captivation generator |
| CN207951165U (en) * | 2018-02-06 | 2018-10-12 | 西安交通大学 | The venturi mixer of multi-hole orifice is contained in a kind of throat |
| CN209210436U (en) * | 2018-12-11 | 2019-08-06 | 西安交通大学 | A kind of compound cavitation apparatus of adjustable venturi throat multi-hole orifice relative position |
-
2018
- 2018-12-11 CN CN201811509422.6A patent/CN109574135B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201997321U (en) * | 2010-12-21 | 2011-10-05 | 中国人民解放军军事医学科学院卫生装备研究所 | Hydraulic cavitation reactor |
| BR202012000015U2 (en) * | 2012-01-02 | 2015-12-01 | Rubem Ioel Dotte Echart | hydrodynamic and hydrosonic captivation generator |
| CN103193310A (en) * | 2013-03-13 | 2013-07-10 | 浙江工业大学 | Venturi pipe and perforated plate combined-type hydrodynamic cavitation reaction chamber |
| CN104028134A (en) * | 2014-05-22 | 2014-09-10 | 西安交通大学 | Novel venturi mixer |
| CN207951165U (en) * | 2018-02-06 | 2018-10-12 | 西安交通大学 | The venturi mixer of multi-hole orifice is contained in a kind of throat |
| CN209210436U (en) * | 2018-12-11 | 2019-08-06 | 西安交通大学 | A kind of compound cavitation apparatus of adjustable venturi throat multi-hole orifice relative position |
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|---|---|
| CN109574135A (en) | 2019-04-05 |
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