CN109200840B - Down-flow oxygenation mixer - Google Patents
Down-flow oxygenation mixer Download PDFInfo
- Publication number
- CN109200840B CN109200840B CN201811354527.9A CN201811354527A CN109200840B CN 109200840 B CN109200840 B CN 109200840B CN 201811354527 A CN201811354527 A CN 201811354527A CN 109200840 B CN109200840 B CN 109200840B
- Authority
- CN
- China
- Prior art keywords
- water
- water inlet
- air
- outlet
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 365
- 238000002156 mixing Methods 0.000 claims abstract description 70
- 238000007667 floating Methods 0.000 claims description 31
- 239000002352 surface water Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 241000195493 Cryptophyta Species 0.000 abstract description 8
- 238000005273 aeration Methods 0.000 abstract description 5
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 230000001706 oxygenating effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- 238000013517 stratification Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23761—Aerating, i.e. introducing oxygen containing gas in liquids
- B01F23/237611—Air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
A downflow oxygenating mixer. The invention relates to an aeration oxygenation mixer for a deepwater body, which comprises a gas-water mixing chamber, a gas-outlet annular cylinder, a water inlet pipe, a gas inlet pipe and a water outlet pipe, wherein the upper part of the gas-water mixing chamber is a cylinder and is tightly connected with the gas-outlet annular cylinder, and the lower part of the gas-water mixing chamber is an inverted cone and is tightly connected with the water outlet pipe. The air outlet annular cylinder is arranged in the middle of the annular water outlet baffle, and the water inlet pipe is arranged in the middle of the air outlet annular cylinder; the water inlet concave cylindrical block, the water inlet adjusting ball and the water inlet baffle form a water inlet check valve, and the water outlet concave cylindrical block, the water outlet adjusting ball and the water outlet baffle form a water outlet check valve which are respectively arranged in the water inlet pipe and the water outlet pipe; the air inlet pipe extends into the air-water mixing chamber to the bottom end of the water inlet pipe. The invention utilizes the compressed air to carry out secondary oxygenation mixing on the bottom anoxic water body, and utilizes the complementarity of the surface water body and the bottom water body in water quality to introduce the surface water body into the bottom of the lake and mix with the bottom water body, thereby inhibiting the excessive propagation of algae and improving the water quality improvement effect.
Description
Technical Field
The invention relates to an aeration and oxygenation mixer for deep water, in particular to an aeration and oxygenation mixer which is used for disturbing and destroying seasonally stable structure layering of hot layered lakes and reservoirs and can improve and restore water quality.
Background
Thermal stratification is a characteristic lake-marsh feature of deep-water type lakes and reservoirs. Due to the influence of the rise of the ambient temperature in summer, the deep water type lake and reservoir can cause water temperature difference in the vertical direction of the water body, namely the water temperature of the upper layer is high, the water temperature of the lower layer is low, and a relatively obvious water temperature gradient is formed. The density difference of the water body formed under the influence of the vertical water temperature gradient leads to the formation of stable physical structure layering of the water body, which is called thermal layering.
The formation of thermal stratification impedes the exchange of material and energy in the vertical direction of the body of water. The most remarkable characteristic is that the difference of the vertical concentration of the dissolved oxygen is caused, so that an upper water body is rich in oxygen, a lower water body is anoxic and even in an anaerobic water environment state, nutritive salts and heavy metals in sediments are promoted to become electron donors and are released to an upward water body, and the water quality of the bottom water body is polluted, and the phenomenon is called a thermal stratification effect. In the thermal stratification period, the upper water body is generally higher in water temperature, dissolved oxygen content and pH value due to the influence of air temperature, oxygen transmission in the air and algae metabolism, and conversely, the lower water body is lower in temperature, dissolved oxygen content and pH value.
The method for improving and repairing the water quality deterioration caused by the thermal stratification effect is many, wherein the in-situ mixed oxygenation technology is a direct and efficient means for solving the thermal stratification effect of lakes and reservoirs as the stable stratification of water bodies can be effectively disturbed or even destroyed, the concentration of dissolved oxygen at the bottom of a reservoir can be increased, and the release of nutrient salts and heavy metal ions in sediments can be inhibited. In the in-situ mixed oxygenation technology, the water pumping aeration technology is a relatively mature thermal stratification destruction technology applied at home at present, and is applied to a certain range in thermal stratification lakes and reservoirs formed under the condition of large water depth and strong stratification. The technology utilizes the water lifting aerator to generate a 'gas bomb', and in the process of the 'gas bomb' transportation, the water column formed by the bottom water body is jacked to the surface layer of the lake and reservoir, so that the purposes of oxygenation of the bottom water body on the surface layer of the lake and reservoir and disturbance of water body layering are realized. Compared with the prior art, the water pumping aeration technology has the advantages of direct effect and easy maintenance; but the device has obvious defects, namely the whole device is large and heavy, the parts are more, the materials are easy to corrode, the trouble is caused for field installation, and the difficulty is caused for operation and maintenance. Secondly, the technology tries to lift the bottom water body to the surface layer of the lake and reservoir, and needs to provide larger potential energy and kinetic energy for the rising water column, so that the energy consumption is larger and the efficiency is lower. Finally, the technology ignores the water quality response characteristics of the surface water body to the thermal stratification effect, and particularly has no effective counter measures for the abnormal high pH value of the water body and the excessive propagation of algae.
Aiming at the defects of the mixed oxygenation technology, the equipment which has simple structure, fewer parts and easy operation and maintenance is designed, the natural potential energy of the surface water body and the special properties of water quality indexes such as water temperature, dissolved oxygen content, pH and the like in the thermal stratification period are fully utilized, the surface water body is introduced into the bottom layer of the lake and reservoir by adopting an effective device, and the purposes of increasing the dissolved oxygen of the bottom water body, improving the pH value and improving the water temperature can be achieved in the mixing process of the surface water body and the bottom water body. Because the surface water body has higher algae content in the thermal stratification period and has stronger risk of water quality deterioration accidents such as blue algae burst, the device is used for introducing the surface water body in the algae-rich water layer into the bottom layer of the lake and reservoir with poorer illumination conditions, and the aim of inhibiting the excessive propagation of algae can be fulfilled. The device uses compressed air as a power source, and the gas can move oxygen to a certain extent to the anoxic bottom water body in the release process, so that the dissolved oxygen content of the oxygen can be increased; at the same time, disturbances and damages to the stable thermal layered structure are created during the rise of the remaining air to the water surface until it is diffused to the atmosphere.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides the oxygenation mixing device which utilizes compressed air as oxygen and power sources, introduces the surface water body of the thermally layered lake and reservoir into the bottom of the lake and reservoir, mixes the surface water body with the bottom water body at the bottom of the lake and reservoir, increases the dissolved oxygen of the bottom water body, increases the pH value, increases the water temperature, inhibits the excessive propagation of algae, and simultaneously perturbs and destroys the water layer structure of the deep-water thermally layered lake and reservoir.
The object of the invention can be achieved by the following technical scheme. The downward flow oxygenating mixer comprises a gas-water mixing chamber, a gas outlet annular cylinder, a water inlet pipe, a gas inlet pipe and a water outlet pipe.
The upper part of the air-water mixing chamber is a hollow cylinder, the top of the cylinder is sealed, a circular hole is formed in the middle of the top of the cylinder, the bottom of the cylinder is open and tightly connected with the lower part of the air-water mixing chamber, the lower part of the air-water mixing chamber is a hollow inverted cone, the top of the cone is open and tightly connected with the bottom of the cylinder, a circular hole is formed in the middle of the bottom of the cone, the hole is tightly connected with the top end of a water outlet pipe, and the side surface of the cone is provided with a hole tightly connected with the outer wall of an air inlet pipe.
The air outlet annular cylinder is a hollow cylinder, the outer diameter of the air outlet annular cylinder is smaller than the inner diameter of the cylinder at the upper part of the air-water mixing chamber, the top of the upper end of the air outlet annular cylinder is higher than the top of the air-water mixing chamber, the edge of the bottom of the lower end of the air outlet annular cylinder extends into the air-water mixing chamber, the outer wall of the middle part of the air outlet annular cylinder is tightly connected with a hole at the top of the cylinder at the upper part of the air-water mixing chamber, and the air outlet annular cylinder is provided with a water inlet pipe penetrating through the center of the air outlet annular cylinder.
The water inlet pipe is a hollow tubular body, the outer diameter of the water inlet pipe is smaller than that of the air outlet annular cylinder, the upper end of the water inlet pipe is open, the outer wall of the upper part of the lower end of the water inlet pipe is tightly connected with the inner wall of the air outlet annular cylinder through a fixed block, the end part of the lower end of the water inlet pipe is tightly connected with the top end of a supporting column, the inner wall of the upper part of the lower end of the water inlet pipe is tightly connected with the outer wall of a water inlet concave cylindrical block and the outer end of a water inlet stop block, the water inlet concave cylindrical block is positioned on the upper part of the water inlet stop block, and a water inlet adjusting floating ball is arranged in a space formed by the water inlet concave cylindrical block and the water inlet adjusting floating ball.
The air outlet baffle is a hollow cylinder, the inner diameter of the air outlet baffle is larger than the outer diameter of the air outlet annular cylinder, the bottom of the air outlet baffle is sealed, a round hole is formed in the middle of the bottom of the air outlet baffle and is tightly connected with the outer wall of the lower part of the lower end of the water inlet pipe, the upper end of the air outlet baffle is open, and the top edge of the upper end of the air outlet baffle is higher than the bottom edge of the lower end of the air outlet annular cylinder.
The outside of the water inlet concave cylindrical block is a cylinder, the outer diameter of the water inlet concave cylindrical block is equal to the inner diameter of the water inlet pipe, the middle of the bottom of the water inlet concave cylindrical block is inwards provided with a spherical concave, the middle of the top of the water inlet concave cylindrical block is provided with a circular hole, and the hole is communicated with the spherical concave; the water inlet adjusting floating ball is a sphere, and the diameter of the sphere is smaller than the inner diameter of the water inlet pipe and larger than the diameter of a hole at the top of the water inlet concave cylindrical block.
The outer wall of the top of the water outlet pipe is tightly connected with a circular hole in the middle of the bottom of the cone of the air-water mixing chamber, the inner wall of the upper end of the water outlet pipe is tightly connected with the outer wall of the concave cylindrical block of the water outlet and the outer end of the water outlet stop block, the concave spherical block of the water outlet is positioned on the upper part of the water outlet stop block, a water outlet adjusting floating ball is arranged in a space formed by the concave spherical block of the water outlet and the water outlet, the outer part of the concave cylindrical block of the water outlet is a cylinder, the outer diameter of the cylindrical block of the water outlet is equal to the inner diameter of the water outlet pipe, the middle of the bottom is inwards provided with a spherical concave, the middle of the top is provided with a circular hole, and the hole is communicated with the spherical concave. The water outlet adjusting floating ball is a sphere, and the diameter of the water outlet adjusting floating ball is smaller than the inner diameter of the water outlet pipe and larger than the diameter of a hole at the top of the water outlet concave cylindrical block.
The holes in the sides of the cone are located near the edges thereof.
The fixing block is a flat cuboid and is uniformly distributed on the upper part of an annular slit formed between the inner wall of the air outlet annular cylinder and the outer wall of the water inlet pipe in an annular array.
The bottom edge of the lower end of the air outlet annular cylinder stretches into the air-water mixing chamber and is close to the bottom of the air outlet baffle plate.
The water inlet check block is a flat cuboid, 4 blocks are arranged in total, a round cavity formed by the concave of the concave cylindrical block is larger than the volume of the water inlet adjusting floating ball, and the 4 water inlet check blocks are distributed in a uniform annular array.
The height of the upper end of the air inlet pipe extending into the air-water mixing chamber is consistent with the height of the bottom edge of the water inlet pipe.
The water outlet check blocks are flat cuboid, 4 blocks are arranged in total, the round cavity formed by the concave is larger than the volume of the water outlet adjusting floating ball, and the 4 water outlet check blocks are distributed in a uniform annular array.
Compared with the prior art, the invention has the following beneficial effects: 1. the invention utilizes the water inlet pipe to be connected with the water inlet one-way valve and the water body on the surface layer of the lake and the reservoir, utilizes the air inlet pipe to be connected with the pressure gas, and utilizes the water outlet pipe to be connected with the water body on the bottom layer of the lake and the water outlet one-way valve; the energy of the gas and the air outlet slit are utilized to spray the gas at high speed, so as to impact and disturb the bottom water body, and realize the first oxygenation, mixing and stirring of the bottom water body; the contact between the micro bubbles and the bottom water body in the floating process is utilized to carry out the second oxygenation, and the layered structure of the water body is destroyed/disturbed in the floating process; the negative pressure formed in the gas-water mixing chamber after the compressed gas mixture is flushed out and the water head pressure drop of the upper water body are utilized, the upper water body continuously enters the gas-water mixing chamber through the water inlet pipe, and the gas-water mixing process is participated in, so that the introduction of the surface water body is formed; compressed air continuously enters the air-water mixing chamber, and the surface water body which enters the air-water mixing chamber is extruded from the water outlet pipe, so that the mixing of the surface water body and the bottom water body is realized. 2. The invention has simple structure and smaller volume, the surface water body and the compressed air can be connected by adopting the hose, the installation is simple and quick, and the operation and maintenance are simple and convenient; the air outlet slit is arranged, so that a device for carrying out secondary oxygenation mixing on the bottom anoxic water body is provided, and the oxygenation efficiency is improved; the air outlet slit, the water inlet pipe and the water outlet pipe are arranged, the surface water body is introduced into the air-water mixing chamber and then enters the bottom of the lake and the bottom water body to be mixed, the complementarity of the water quality of the surface water body and the water quality of the bottom water body is utilized, and the oxygenation mixing effect is improved; if the head of the water inlet pipe is connected with the alga enrichment area of the surface water body, the alga enrichment area can be introduced into the bottom layer of the lake and reservoir, so that the aim of inhibiting excessive propagation of alga is fulfilled.
Drawings
Fig. 1 is a top view of the structure of the present invention.
Fig. 2 is a front view of the inventive construction.
Fig. 3 is a section A-A of fig. 1.
Fig. 4 is a sectional view of B-B of fig. 3.
Fig. 5 is a C-C section view of fig. 3.
Fig. 6 is a sectional view of D-D of fig. 3.
Fig. 7 is a sectional view of E-E of fig. 3.
FIG. 8 is a southwest isometric view of a construction of the invention.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to fig. 1 to 8, but the present invention is not limited to these embodiments.
The downflow oxygenation mixer comprises a gas-water mixing chamber 1, a gas outlet annular cylinder 2, a water inlet pipe 4, a gas inlet pipe 8 and a water outlet pipe 9.
The upper part of the air-water mixing chamber 1 is a hollow cylinder, the top of the cylinder is sealed, a circular hole is formed in the middle of the top of the cylinder, the bottom of the cylinder is open and tightly connected with the lower part of the air-water mixing chamber 1, the lower part of the air-water mixing chamber 1 is a hollow inverted cone, the top of the cone is open and tightly connected with the bottom of the cylinder, a circular hole is formed in the middle of the bottom of the cone, the hole is tightly connected with the top end of a water outlet pipe, and a hole tightly connected with the outer wall of the air inlet pipe 8 is formed in the side surface of the cone.
The air outlet annular cylinder 2 is a hollow cylinder, the outer diameter of the air outlet annular cylinder is smaller than the inner diameter of the cylinder at the upper part of the air-water mixing chamber 1, the top of the upper end of the air outlet annular cylinder 2 is higher than the top of the air-water mixing chamber 1, the bottom edge of the lower end extends into the air-water mixing chamber 1, the outer wall of the middle part of the air outlet annular cylinder 2 is tightly connected with a hole at the top of the cylinder at the upper part of the air-water mixing chamber 1, and the air outlet annular cylinder 2 is provided with a water inlet pipe 4 penetrating through the center position of the air outlet annular cylinder 2.
The water inlet pipe 4 is a hollow tubular body, the outer diameter of the water inlet pipe is smaller than that of the air outlet annular cylinder 2, the upper end of the water inlet pipe is open, the outer wall of the upper part of the lower end of the water inlet pipe 4 is tightly connected with the inner wall of the air outlet annular cylinder 2 through the fixing block 12, the end part of the lower end of the water inlet pipe 4 is tightly connected with the top end of the supporting column 13, the inner wall of the upper part of the lower end of the water inlet pipe 4 is tightly connected with the outer wall of the water inlet concave cylindrical block 6 and the outer end of the water inlet stop block 7, the water inlet concave cylindrical block 6 is positioned on the upper part of the water inlet stop block 7, and the water inlet adjusting floating ball 3 is arranged in a space formed by the water inlet concave cylindrical block 6 and the water inlet stop block.
The air outlet baffle 5 is a hollow cylinder, the inner diameter of the air outlet baffle is larger than the outer diameter of the air outlet annular cylinder 1, the bottom of the air outlet baffle is sealed, a round hole is formed in the middle of the bottom of the air outlet baffle, the air outlet baffle is tightly connected with the outer wall of the lower part of the lower end of the water inlet pipe 4, the upper end of the air outlet baffle is open, and the top edge of the upper end of the air outlet baffle is higher than the bottom edge of the lower end of the air outlet annular cylinder 1.
The outside of the water inlet concave cylindrical block 6 is a cylinder, the outer diameter of the water inlet concave cylindrical block is equal to the inner diameter of the water inlet pipe 4, the middle of the bottom of the water inlet concave cylindrical block is inwards provided with a spherical concave, the middle of the top of the water inlet concave cylindrical block is provided with a circular hole, and the hole is communicated with the spherical concave; the water inlet adjusting floating ball 3 is a sphere, and the diameter of the sphere is smaller than the inner diameter of the water inlet pipe and larger than the diameter of a hole at the top of the water inlet concave cylindrical block 6.
The outer wall of the top of the water outlet pipe 9 is tightly connected with a circular hole in the middle of the bottom of the cone of the air-water mixing chamber 1, and the inner wall of the upper end of the water outlet pipe 9 is tightly connected with the outer wall of the water outlet concave cylindrical block 14 and the outer end of the water outlet stop block 11.
The water outlet concave spherical block 14 is positioned at the upper part of the water outlet stop block, a water outlet adjusting floating ball 10 is arranged in a space formed by the water outlet concave spherical block 14 and the water outlet stop block, the outer part of the water outlet concave cylindrical block 14 is a cylinder, the outer diameter of the water outlet concave cylindrical block is equal to the inner diameter of the water outlet pipe 9, the middle of the bottom is inwards provided with a spherical concave, the middle of the top is provided with a circular hole, and the hole is communicated with the spherical concave; the water outlet adjusting floating ball 10 is a sphere, and the diameter of the sphere is smaller than the inner diameter of the water outlet pipe 9 and larger than the diameter of a hole at the top of the water outlet concave cylindrical block 14.
The holes on the side surface of the cone at the lower part of the air-water mixing chamber 1 are positioned near the edge of the cone.
The fixing block 12 is a flat cuboid, and is uniformly distributed on the upper part of a circular slit formed between the inner wall of the air outlet circular cylinder 2 and the outer wall of the water inlet pipe 4 in a circular array.
The bottom edge of the lower end of the air outlet annular cylinder 2 extends into the air-water mixing chamber 1 and is close to the bottom of the air outlet baffle plate 5.
The water inlet check blocks 7 are flat cuboid, 4 blocks are added, a round cavity formed by the concave of the water inlet concave cylindrical block 6 is larger than the volume of the water inlet adjusting floating ball 10, and the 4 water inlet check blocks 7 are distributed in a uniform annular array.
The height of the upper end of the air inlet pipe 8 extending into the air-water mixing chamber 1 is consistent with the height of the bottom edge of the water inlet pipe 4.
The water outlet stop blocks 11 are flat cuboid, 4 blocks are all arranged, a round cavity formed by the concave of the water outlet concave cylindrical blocks 14 is larger than the volume of the water outlet adjusting floating ball 10, and the 4 water outlet stop blocks are distributed in a uniform annular array.
One specific embodiment of the invention is: the body is made of stainless steel plate 1mm thick. The outer diameter of the air-water mixing chamber 1 is 500mm, the height is 700mm, wherein the height of the upper cylinder is 500mm, and the height of the lower inverted cone is 200mm; the inner diameter of the air outlet annular cylinder 2 is 120mm, the length of the air outlet annular cylinder extending out of the air-water mixing chamber 1 is 400mm, and the length of the air outlet annular cylinder entering the air-water mixing chamber 1 is 200mm; the outer diameter of the water inlet pipe 4 is 115mm, the length of the water inlet pipe entering the air-water mixing chamber 1 is 400mm, the water inlet pipe can be connected by adopting a PE pipe after extending out of the air outlet annular cylinder by about 200mm, and the length of the PE pipe is adjusted on site and is in principle 2-5 m below the surface water body; the diameter of the water inlet adjusting floating ball 3 is 80mm, and the material is rubber; the diameter of the water outlet adjusting floating ball 10 is 80mm, and the material is rubber; the height of the air outlet baffle plate 5 is 200mm, the outer diameter is 160mm, the air outlet baffle plate is connected with the water inlet pipe 4 at a position 100mm away from the bottom end of the water inlet pipe 4, and the height of the part overlapped with the bottom end of the air outlet annular cylinder 2 is 100mm; the outer diameter of the water inlet concave cylindrical block 6 is 113mm, the height is 40mm, and the diameter of the concave is 90mm; the length of the water inlet stop block 7 is 50mm; the diameter of the air inlet pipe 8 is 32mm, and the length of the air inlet pipe entering the air-water mixing chamber 1 is 120mm; the outer diameter of the water outlet pipe 9 is 100mm; the length of the water outlet stop block 11 is 30mm; the outer diameter of the water outlet concave cylindrical block 14 is 98mm, the height is 40mm, and the diameter of the concave is 90mm; the width of the fixed block 12 is 20mm; the support column 13 has a width of 20mm.
The working process and principle of the invention are as follows.
The bottom of the device is placed at a position 2-3 m away from the water bottom layer, and when the device is immersed by water, the water enters the gas-water mixing bin 1 through the gas outlet annular cylinder 2 and the water inlet pipe 4; the air inlet pipe 8 is connected with a pressure air source through a pressure rubber pipe, and the water inlet pipe 4 is connected to an upper water body through a PE hose; to maintain the device in place, it may be anchored to the bottom of the body of water.
Process 1: the pressure gas enters through the gas inlet pipe 8, the top end of the gas inlet pipe 8 is level with the bottom end of the water inlet pipe 4, the gas cannot enter the water inlet pipe 4 in the ascending process, the gas cannot enter the annular slit formed by the gas outlet annular cylinder 2 and the water inlet pipe 4 due to the blocking of the gas outlet baffle plate 5 in the ascending process, and after the gas outlet annular cylinder rises to the top end of the gas-water mixing chamber 1, the gas is accumulated at the top of the gas-water mixing chamber 1 due to the blocking of the gas outlet annular cylinder 2 extending into the lower end of the gas-water mixing chamber 1; because of continuous air intake, the volume of the air is increased, the air pressure is increased, the water in the air-water mixing chamber 1 transmits the pressure into the water inlet pipe 4 and the water outlet pipe 9, so that the water inlet adjusting floating ball 3 ascends and is tightly pressed at the top end of the inner concave cavity inner wall of the water inlet concave cylindrical block 6, the water is prevented from flowing out of the air-water mixing chamber 1 by the water inlet pipe 4, the water outlet adjusting floating ball 10 descends and is tightly pressed on the upper surface of the water outlet baffle 11, and the water in the air-water mixing chamber 1 is discharged by the water outlet pipe 9 through a gap between the water outlet adjusting floating ball 10 and the water outlet baffle 11.
Process 2: when the pressure gas continuously enters the gas-water mixing chamber 1 through the gas inlet pipe 8, the gas-water interface continuously descends until reaching the bottom edge of the gas outlet annular cylinder 2, then the gas bypasses the top edge of the water outlet baffle 11 and the bottom edge of the gas outlet annular cylinder 2, and passes through the annular slit between the gas outlet annular cylinder 2 and the water inlet pipe 4 to be flushed out of the gas-water mixing chamber 1; in the process that the gas rushes out of the annular slit of the gas-water mixing chamber 1, the gas-water mixing chamber 1 generates a suction effect due to the influence of a Venturi effect, and the pressure is rapidly reduced; at the water outlet pipe 9, due to the jacking of the water body at the bottom of the air-water mixing chamber 1, the water outlet adjusting floating ball 10 rises and is pressed on the top end of the inner concave cavity inner wall of the water outlet concave cylindrical block 14, so that water is prevented from entering the air-water mixing chamber 1 from the water outlet pipe 9; at the water inlet pipe 4, due to the pressure of the water body at the upper part of the air-water mixing chamber 1, the water inlet adjusting floating ball 3 descends and is pressed on the upper surface of the water inlet baffle 7, and the water body at the upper part passes through the gap between the water inlet adjusting floating ball 3 and the water inlet baffle 7 and bypasses the water inlet gap 15 formed between the support columns 13 to enter the air-water mixing chamber 1; the pressure gradually rises due to the entry of the gas into the upper body of water and the gas inlet pipe 8 until the pressure in the gas-water mixing chamber 1 reaches equilibrium, and then the pressure gradually rises due to the continued entry of the gas inlet pipe 8, repeating the process 1.
The specific embodiments described herein are offered by way of example only. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The downflow oxygenation mixer is characterized in that: comprises a gas-water mixing chamber, a gas outlet annular cylinder, a water inlet pipe, a gas outlet baffle plate and a water outlet pipe;
the upper part of the air-water mixing chamber is a hollow cylinder, the top of the cylinder is sealed, a circular hole is formed in the middle of the top of the cylinder, the bottom opening of the cylinder is tightly connected with the lower part of the air-water mixing chamber, the lower part of the air-water mixing chamber is a hollow inverted cone, the top of the cone is open and tightly connected with the bottom of the cylinder, a circular hole is formed in the middle of the bottom of the cone, the hole is tightly connected with the top end of a water outlet pipe, and a hole tightly connected with the outer wall of an air inlet pipe is formed in the side surface of the cone;
the outer wall of the middle part of the air outlet annular cylinder is tightly connected with a hole at the top of the cylinder at the upper part of the air-water mixing chamber, and the air outlet annular cylinder is provided with a water inlet pipe passing through the center of the air outlet annular cylinder;
the water inlet pipe is a hollow tubular body, the outer diameter of the water inlet pipe is smaller than that of the air outlet annular cylinder, the upper end of the water inlet pipe is open, the outer wall of the upper part of the lower end of the water inlet pipe is tightly connected with the inner wall of the air outlet annular cylinder through a fixed block, the end part of the lower end of the water inlet pipe is tightly connected with the top end of a support column, the inner wall of the upper part of the lower end of the water inlet pipe is tightly connected with the outer wall of a water inlet concave cylindrical block and the outer end of a water inlet stop block, the water inlet concave cylindrical block is positioned at the upper part of the water inlet stop block, and a water inlet adjusting floating ball is arranged in a space formed by the water inlet concave cylindrical block and the water inlet adjusting floating ball;
the air outlet baffle is a hollow cylinder, the inner diameter of the air outlet baffle is larger than the outer diameter of the air outlet annular cylinder, the bottom of the air outlet baffle is sealed, a round hole is formed in the middle of the bottom of the air outlet baffle and is tightly connected with the outer wall of the lower part of the lower end of the water inlet pipe, the upper end of the air outlet baffle is open, and the top edge of the upper end of the air outlet baffle is higher than the bottom edge of the lower end of the air outlet annular cylinder;
the outer part of the water inlet concave cylindrical block is a cylinder, the outer diameter of the water inlet concave cylindrical block is equal to the inner diameter of the water inlet pipe, the middle of the bottom of the water inlet concave cylindrical block is inwards provided with a spherical concave, the middle of the top of the water inlet concave cylindrical block is provided with a circular hole, and the hole is communicated with the spherical concave; the water inlet adjusting floating ball is a sphere, and the diameter of the sphere is smaller than the inner diameter of the water inlet pipe and larger than the diameter of a hole at the top of the water inlet concave cylindrical block;
the outer wall of the top of the water outlet pipe is tightly connected with a circular hole in the middle of the bottom of the cone of the air-water mixing chamber, the inner wall of the upper end of the water outlet pipe is tightly connected with the outer wall of the water outlet concave cylindrical block and the outer end of the water outlet stop block, the water outlet concave cylindrical block is positioned at the upper part of the water outlet stop block, a water outlet adjusting floating ball is arranged in a space formed by the water outlet concave cylindrical block and the water outlet concave cylindrical block, the outer part of the water outlet concave cylindrical block is a cylinder, the outer diameter of the water outlet concave cylindrical block is equal to the inner diameter of a water outlet pipe, the middle of the bottom of the water outlet pipe is inwards provided with a spherical concave, and the circular hole is formed in the middle of the top of the water outlet concave cylindrical block and is communicated with the spherical concave; the water outlet adjusting floating ball is a sphere, and the diameter of the sphere is smaller than the inner diameter of the water outlet pipe and larger than the diameter of a hole at the top of the water outlet concave cylindrical block;
the holes on the side surface of the cone at the lower part of the air-water mixing chamber are positioned close to the edge of the hole;
the fixing blocks are flat cuboid and are uniformly distributed on the upper part of an annular slit formed between the inner wall of the air outlet annular cylinder and the outer wall of the water inlet pipe in an annular array;
the bottom edge of the lower end of the air outlet annular cylinder stretches into the air-water mixing chamber and is close to the bottom of the air outlet baffle plate.
2. The downflow oxygenation mixer of claim 1, wherein: the water inlet check block is a flat cuboid, 4 blocks are added, a round cavity formed by the concave of the water inlet concave cylindrical block is larger than the volume of the water inlet adjusting floating ball, and the 4 water inlet check blocks are distributed in a uniform annular array.
3. The downflow oxygenation mixer of claim 1, wherein: the height of the upper end of the air inlet pipe extending into the air-water mixing chamber is consistent with the height of the bottom edge of the water inlet pipe.
4. The downflow oxygenation mixer of claim 1, wherein: the water outlet check block is a flat cuboid, 4 blocks are altogether, a round cavity formed by the concave of the water outlet concave cylindrical block is larger than the volume of the water outlet adjusting floating ball, and the 4 water outlet check blocks are distributed in a uniform annular array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354527.9A CN109200840B (en) | 2018-11-14 | 2018-11-14 | Down-flow oxygenation mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354527.9A CN109200840B (en) | 2018-11-14 | 2018-11-14 | Down-flow oxygenation mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109200840A CN109200840A (en) | 2019-01-15 |
| CN109200840B true CN109200840B (en) | 2024-03-08 |
Family
ID=64996641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354527.9A Active CN109200840B (en) | 2018-11-14 | 2018-11-14 | Down-flow oxygenation mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109200840B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308138A (en) * | 1978-07-10 | 1981-12-29 | Woltman Robert B | Treating means for bodies of water |
| JP3015350B1 (en) * | 1998-09-09 | 2000-03-06 | ファンチェンガン オーシャン サイエンス アンド テクノロジー デベロップメント センター | Suction aerator |
| US6398194B1 (en) * | 1999-11-29 | 2002-06-04 | Tsung-Hsin Tsai | Water pressure-type aeration device |
| JP2009202038A (en) * | 2008-02-26 | 2009-09-10 | Kyuuyama:Kk | Floating body type water purifier by water circulation, filtration, and aeration using photovoltaic power generation |
| CN106745870A (en) * | 2017-02-28 | 2017-05-31 | 台州学院 | A kind of vertical flow oxygenation blender |
| CN209155557U (en) * | 2018-11-14 | 2019-07-26 | 台州学院 | It is lower to be oxygenated mixer to stream |
-
2018
- 2018-11-14 CN CN201811354527.9A patent/CN109200840B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4308138A (en) * | 1978-07-10 | 1981-12-29 | Woltman Robert B | Treating means for bodies of water |
| JP3015350B1 (en) * | 1998-09-09 | 2000-03-06 | ファンチェンガン オーシャン サイエンス アンド テクノロジー デベロップメント センター | Suction aerator |
| US6398194B1 (en) * | 1999-11-29 | 2002-06-04 | Tsung-Hsin Tsai | Water pressure-type aeration device |
| JP2009202038A (en) * | 2008-02-26 | 2009-09-10 | Kyuuyama:Kk | Floating body type water purifier by water circulation, filtration, and aeration using photovoltaic power generation |
| CN106745870A (en) * | 2017-02-28 | 2017-05-31 | 台州学院 | A kind of vertical flow oxygenation blender |
| CN209155557U (en) * | 2018-11-14 | 2019-07-26 | 台州学院 | It is lower to be oxygenated mixer to stream |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109200840A (en) | 2019-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4842732A (en) | Apparatus for aerating and mixing waste water | |
| US4563277A (en) | Apparatus for aerating and mixing waste water | |
| US4070423A (en) | Apparatus for diffusion in bodies of liquid | |
| WO2015135401A1 (en) | Freely moving, highly efficient oxygenating apparatus | |
| CN1323040C (en) | Multifunction water pumping aerator | |
| US20120223447A1 (en) | Contact reaction tower | |
| CN106115950A (en) | A kind of over-saturation dissolved oxygen aerator | |
| CA2909759C (en) | Aerator/digester for water treatment | |
| CN105236597A (en) | Aeration oxygenation method and apparatus for bottom layer of surface water | |
| CN109200840B (en) | Down-flow oxygenation mixer | |
| CN206051701U (en) | A kind of block-resistant type aerator | |
| CN209155557U (en) | It is lower to be oxygenated mixer to stream | |
| CN101428904B (en) | Gas winding cycle stream stirring system for open type oxygen lack pool | |
| CN206901886U (en) | Can lifting aerator and deep water aeration tank | |
| CN106745869B (en) | Pulse vertical flow aeration mixing device | |
| CN205953680U (en) | Super supersaturated with dissolved oxygen aeration equipment | |
| CN113307370A (en) | Barrel for water purification | |
| CN106219783A (en) | A kind of block-resistant type aerator | |
| CN107739100B (en) | Mixed oxygenation-artificial floating island integrated water quality restoration device | |
| KR20110081557A (en) | Apparatus for dissolving oxygen using bubble | |
| CN204454819U (en) | Lapping liquid wastewater treatment equipment | |
| CN207313202U (en) | A kind of micro-electrolysis reaction tower with self-loopa defoaming function | |
| CN103332778A (en) | Submerged floating-type general micropore aeration device | |
| CN112209492B (en) | Device for conveying oxygen-enriched water on surface layer to bottom layer to enhance self-purification capacity of water body | |
| Alkhalidi et al. | Bubble deflector to enhance fine bubble aeration for wastewater treatment in space usage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |