CN213475471U - Parallel porous venturi tube hydrodynamic cavitation wastewater treatment system - Google Patents
Parallel porous venturi tube hydrodynamic cavitation wastewater treatment system Download PDFInfo
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- CN213475471U CN213475471U CN202021577970.5U CN202021577970U CN213475471U CN 213475471 U CN213475471 U CN 213475471U CN 202021577970 U CN202021577970 U CN 202021577970U CN 213475471 U CN213475471 U CN 213475471U
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Abstract
The utility model provides a parallelly connected porous venturi hydrodynamic cavitation effluent disposal system which characterized in that: all parts of the system are connected through water pipes, a water inlet tank, a porous Venturi tube and a water storage tank are sequentially arranged along the water flow direction, the porous Venturi tube is connected with the water pipes through threads, and the porous Venturi tube comprises a porous Venturi tube I and a porous Venturi tube II which are identical in structure and are arranged in parallel; the porous Venturi tube I is sequentially provided with a porous section I, a contraction section, a throat part, a divergence section and a porous section II along the water flowing direction; the pipe walls of the porous section I and the porous section II are of sealing structures, and porous filter elements are arranged in the pipes; the incidence half angle alpha of the contraction section is 20-24 degrees, and the divergence half angle beta of the divergence section is 4-8 degrees. The method has the advantages of simple and convenient operation, high treatment efficiency, low manufacturing cost, resource saving, environmental protection and no secondary pollution.
Description
Technical Field
The utility model relates to a water treatment field, in particular to parallelly connected porous venturi hydrodynamic cavitation device.
Background
With the improvement of the environmental protection requirement, the treatment problem of a large amount of industrial sewage and domestic sewage becomes a focus of attention of the whole society, the traditional sewage treatment technologies such as electrolysis treatment, filtration treatment, chemical treatment, microbial treatment and the like have low treatment efficiency, high energy consumption and high treatment cost, and the search for more efficient and more economic sewage purification technologies is urgently needed.
The hydrodynamic cavitation technology is a promising novel advanced oxidation technology. According to the bernoulli principle, an increase in speed results in a decrease in static pressure. Cavitation occurs only when the local pressure drops to a point below the saturation vapor pressure of the liquid, which can be achieved by adjusting the geometry of the constriction. In a liquid medium, cavitation may be induced by subjecting the liquid to a change in velocity by introducing a constriction device (e.g., a venturi or orifice plate) in the fluid. Cavitation is the phenomenon of the formation, growth, collapse of bubbles in a liquid medium. The bubbles are broken in the cavitation process to generate local high-temperature high-pressure transient hot spots, and high-speed microjet and strong shock waves can be generated to cause the cracking of water and volatile pollutant molecules and generate strong-oxidizing OH, H and HO2Isoradical and H2O2Thereby achieving the purposes of degrading organic pollutants in the wastewater and disinfecting and sterilizing. The hydrodynamic cavitation technology has the advantages of simple device structure, low price and no secondary pollution, but the single cavitator has small cavitation intensity, low efficiency and small treatment capacity and is difficult to adapt to a large amount of sewage treatment, and the traditional hydrodynamic cavitation circulation system enables water after each cavitation process to be mixed with inlet water, thereby increasing the treatment burden and reducing the treatment efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a parallelly connected porous venturi hydrodynamic cavitation effluent disposal system to the not enough of single cavitator and traditional circulation processing.
In order to achieve the above object, the utility model provides a following technical scheme:
a kind of parallel porous venturi tube hydrodynamic cavitation effluent disposal system, connect through the water pipe among every part of the system, along the water flow direction order, there are water inlet tanks, porous venturi tubes, water storage tanks sequentially, the said porous venturi tube connects through the whorl with the water pipe, the porous venturi tube includes the porous venturi tube I and porous venturi tube II that the structure is the same and parallel arrangement; the porous Venturi tube I is sequentially provided with a porous section I, a contraction section, a throat part, a divergence section and a porous section II along the water flowing direction; the pipe walls of the porous section I and the porous section II are of sealing structures, and porous filter elements are arranged in the pipes; the incidence half angle alpha of the contraction section is 20-24 degrees, and the divergence half angle beta of the divergence section is 4-8 degrees.
In the porous section I and the porous section II, the thickness of the porous filter element along the water flow direction is 4-6 mm, the aperture radius is 0.1mm, and the aperture arrangement mode is annular radial.
The length of the contraction section is 20mm, the length of the throat part is 1-4mm, and the length of the divergence section is 70 mm.
The throat part is of a tubular structure, and the inner diameter of the throat part is 0.2 mm.
The bottom of the water inlet tank is provided with an ice bath device.
And a water pump and a pressure gauge are arranged on the water pipe between the water inlet tank and the porous Venturi tube.
And a flowmeter is arranged on the water pipe between the porous Venturi tube and the water storage tank.
A water quality monitor is arranged in the water storage tank.
A water return pipe is arranged between the water storage tank and the water inlet tank, and a valve I is arranged on the water return pipe.
The water outlet of the water storage tank is provided with a water outlet pipe, and the water outlet pipe is provided with a valve II.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the parallel porous venturi tube hydrodynamic cavitation wastewater treatment system is large in treatment capacity, high in treatment efficiency, simple and cheap in device, free of catalyst, low in treatment cost, free of secondary pollution and environment-friendly.
2. A parallelly connected porous venturi hydrodynamic cavitation effluent disposal system, porous venturi combines venturi and perforated plate as an organic whole, makes waste water through tertiary hydrodynamic cavitation, improves waste water treatment efficiency.
3. A parallelly connected porous venturi hydrodynamic cavitation effluent disposal system, parallelly connected two venturi, carry out the hydrodynamic cavitation process simultaneously under the drive of a pump, saved equipment expense and improved the waste water treatment capacity.
4. A parallelly connected porous venturi hydrodynamic cavitation effluent disposal system, establish interim storage water tank in addition except that the case of intaking, carry out water quality testing to the water after handling at every turn to during water that water quality is qualified can in time discharge, no longer continue to get back to circulation system, improved treatment effeciency, reduced hydrodynamic cavitation system's processing burden.
Drawings
FIG. 1 is a system diagram of the present invention;
FIG. 2 is a schematic side view of the multi-orifice venturi I;
figure 3 is a perspective view of the multi-orifice venturi I.
In figure 1, a water inlet tank; 2. an ice bath device; 3. a water pump; 4. a pressure gauge; 5. a porous venturi tube I; 6. a porous venturi tube II; 7. a flow meter; 8. a water storage tank; 9. a water quality detector; 10. a valve II; 11. a drain pipe; 12. a valve I; 13. a return pipe; 5-1, a porous section I; 5-2, a contraction section; 5-3, throat; 5-4, a divergent section; 5-5 and a porous section II.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A parallel porous venturi tube hydrodynamic cavitation wastewater treatment system is characterized in that all parts of the system are connected through water pipes, and a water inlet tank 1, a porous venturi tube and a water storage tank 8 are sequentially arranged along the water flow direction.
The bottom of the water inlet tank 1 is provided with an ice bath device 2. And a water pump 3 and a pressure gauge 4 are arranged on a water pipe between the water inlet tank 1 and the porous Venturi tube. And a flowmeter 7 is arranged on a water pipe between the porous Venturi tube and the water storage tank 8.
A water quality monitor 9 is arranged inside the water storage tank 8. A water return pipe 13 is arranged between the water storage tank 8 and the water inlet tank 1, and a valve I12 is arranged on the water return pipe. A water outlet of the water storage tank 8 is provided with a water outlet pipe 11, and the water outlet pipe 11 is provided with a valve II 10.
The porous venturi tube is connected with the water pipe through threads, and comprises a porous venturi tube I5 and a porous venturi tube II6 which are identical in structure and are arranged in parallel.
The porous Venturi tube I5 is sequentially provided with a porous section I5-1, a contraction section 5-2, a throat part 5-3, a divergence section 5-4 and a porous section II5-5 along the water flowing direction.
The pipe walls of the porous section I5-1 and the porous section II5-5 are of sealing structures, and porous filter elements are arranged in the pipes; the incidence half angle alpha of the contraction section 5-2 is 20-24 degrees, and the divergence half angle beta of the divergence section 5-4 is 4-8 degrees. In the porous section I5-1 and the porous section II5-5, the thickness of the porous filter element along the water flow direction is 4-6 mm, the aperture radius is 0.1mm, and the aperture arrangement mode is annular radiation.
The length of the contraction section 5-2 is 20mm, the length of the throat part 5-3 is 1-4mm, and the length of the divergence section 5-4 is 70 mm.
The throat part 5-3 is a tubular structure, and the inner diameter of the throat part is 0.2 mm.
In the previous experiments, the venturi tube and the orifice plate with the parameters generate the strongest cavitation effect, and the effect of degrading organic pollutants is the best. The Venturi tube and the perforated plate are the most commonly used hydraulic cavitators in the hydraulic cavitation technology, the hydraulic cavitation strength can be effectively improved by combining the Venturi tube and the perforated plate, liquid is induced to cavitate by the influence of speed change through the orifice and the throat part 5-3 of the Venturi tube, a large number of cavitation bubbles are generated, the cavitation bubbles grow at the throat part 5-3 and are extinguished at the divergent zone 5-4, and hydroxyl radicals with strong oxidizability are generated, so that pollutants in waste water are degraded, and sewage is purified.
Example 1:
referring to fig. 1-3, a parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system comprises a water inlet tank 1, and a water inlet is reserved at the bottom of the water inlet tank and used for introducing wastewater to be treated. Because can produce heat rising temperature at the hydrodynamic cavitation in-process, in order to avoid rising the temperature too fast to the damage of devices such as cavitation effect and water pump, venturi, be equipped with ice bath device 2 bottom the case of intaking, maintain the lower temperature of intaking. The water inlet tank 1 is connected with the water pump 3, and the water pump 3 can convey the wastewater to be treated to the porous venturi tube I5 and the porous venturi tube II6 which are connected in parallel for hydrodynamic cavitation treatment and discharge to the water storage tank 8. The water storage tank 8 is a water storage device in which water after each treatment temporarily stays, and a water quality detector 9 is provided therein for detecting whether the treated water meets a dischargeable standard. If the water quality is detected to be qualified, the valve II10 can be automatically opened to discharge the treated water through the water discharge pipe 11; if the water is detected to be unqualified, the valve I12 is automatically opened to make the water enter the water inlet tank 1 through the return pipe 13 to continue the circulation treatment until the water quality is qualified. In addition, a pressure gauge 4 and a flowmeter 7 are arranged on the left water pipe and the right water pipe of the two multi-hole Venturi tubes which are connected in parallel, and are used for observing the pressure and the flow in the hydrodynamic cavitation process.
In order to improve the treatment capacity of the hydrodynamic cavitation, the invention designs the two porous Venturi tubes I5 and II6 in parallel, and is more suitable for a large amount of wastewater treatment occasions.
The porous Venturi tube I5 and the porous Venturi tube II6 are innovative designs of the traditional single cavitator, and the water inlet and the water outlet of the Venturi tube are designed into porous plate shapes, so that the entering wastewater is subjected to three-level hydrodynamic cavitation, more cavitation bubbles are generated, more hydroxyl radicals are generated, the cavitation effect is improved, and the wastewater treatment efficiency is also improved.
In fig. 3, in order to clearly represent the structure of the porous section in the porous venturi tube, only a few holes in the porous section are represented in a three-dimensional manner, and practically all the holes in the porous section are in a porous structure with the same length and the same diameter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a parallelly connected porous venturi hydrodynamic cavitation effluent disposal system which characterized in that: all parts of the system are connected through water pipes, a water inlet tank (1), a porous Venturi tube and a water storage tank (8) are sequentially arranged along the water flow direction, the porous Venturi tube is connected with the water pipes through threads, and the porous Venturi tube comprises a porous Venturi tube I (5) and a porous Venturi tube II (6) which are identical in structure and are arranged in parallel; the porous Venturi tube I (5) is sequentially provided with a porous section I (5-1), a contraction section (5-2), a throat part (5-3), a divergent section (5-4) and a porous section II (5-5) along the water flowing direction; the pipe walls of the porous section I (5-1) and the porous section II (5-5) are of sealing structures, and porous filter elements are arranged in the pipes; the incidence half angle alpha of the contraction section (5-2) is 20-24 degrees, and the divergence half angle beta of the divergence section (5-4) is 4-8 degrees.
2. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: in the porous section I (5-1) and the porous section II (5-5), the thickness of the porous filter element along the water flow direction is 4-6 mm, the aperture radius is 0.1mm, and the aperture arrangement mode is annular radiation.
3. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: the length of the contraction section (5-2) is 20mm, the length of the throat part (5-3) is 1-4mm, and the length of the divergence section (5-4) is 70 mm.
4. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: the throat part (5-3) is of a tubular structure, and the inner diameter of the throat part is 0.2 mm.
5. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: the bottom of the water inlet tank (1) is provided with an ice bath device (2).
6. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: and a water pump (3) and a pressure gauge (4) are arranged on a water pipe between the water inlet tank (1) and the porous Venturi tube.
7. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: and a flowmeter (7) is arranged on a water pipe between the porous Venturi tube and the water storage tank (8).
8. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: a water quality monitor (9) is arranged in the water storage tank (8).
9. The parallel multi-orifice venturi tube hydrodynamic cavitation wastewater treatment system of claim 8, wherein: a water return pipe (13) is arranged between the water storage tank (8) and the water inlet tank (1), and a valve I (12) is arranged on the water return pipe.
10. The parallel multi-hole venturi tube hydrodynamic cavitation wastewater treatment system as claimed in claim 1, wherein: the water outlet of the water storage tank (8) is provided with a drain pipe (11), and the drain pipe (11) is provided with a valve II (10).
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| CN202021577970.5U CN213475471U (en) | 2020-08-03 | 2020-08-03 | Parallel porous venturi tube hydrodynamic cavitation wastewater treatment system |
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| CN202021577970.5U CN213475471U (en) | 2020-08-03 | 2020-08-03 | Parallel porous venturi tube hydrodynamic cavitation wastewater treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890501A (en) * | 2022-04-13 | 2022-08-12 | 辽宁大学 | Hydrodynamic cavitation device based on parallel orifice plates and application of hydrodynamic cavitation device in degradation of dye-containing wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890501A (en) * | 2022-04-13 | 2022-08-12 | 辽宁大学 | Hydrodynamic cavitation device based on parallel orifice plates and application of hydrodynamic cavitation device in degradation of dye-containing wastewater |
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