CN112010423A - Novel air lifting device - Google Patents
Novel air lifting device Download PDFInfo
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- CN112010423A CN112010423A CN202010796381.4A CN202010796381A CN112010423A CN 112010423 A CN112010423 A CN 112010423A CN 202010796381 A CN202010796381 A CN 202010796381A CN 112010423 A CN112010423 A CN 112010423A
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- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000012530 fluid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 8
- 239000010865 sewage Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 15
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 2
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 54
- 239000010410 layer Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 19
- 230000008569 process Effects 0.000 description 15
- 230000008901 benefit Effects 0.000 description 8
- 238000005273 aeration Methods 0.000 description 7
- 239000000969 carrier Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention provides a novel air stripping device which comprises an air conveying pipe, an air stripping pipe, a liquid inlet pipe and a friction piece, wherein the air stripping pipe is in an inclined L shape, the liquid inlet pipe is connected to the bottom end of the air stripping pipe, an air inlet of the air conveying pipe is used for filling air, an air outlet of the air conveying pipe is connected to the bottom of the air stripping pipe in a fluid communication mode and is positioned above the liquid inlet pipe, and the friction piece comprises a plurality of friction bulges uniformly distributed on the inner wall of the air stripping pipe. The novel gas stripping device is provided with the plurality of friction bulges on the inner wall of the gas stripping pipe, when the novel gas stripping device is used for lifting liquid in a biochemical pool in an MBBR sewage treatment system, when a gas-liquid mixture is lifted to other areas through the gas stripping pipe, a carrier in the liquid is in collision contact with the friction bulges, a biomembrane with low activity and thick thickness on the carrier can fall off, the frequency of updating and replacing the biomembrane on the carrier is effectively increased, and the biomembrane on the carrier is always in a high activity state, so that a better sewage treatment effect is obtained.
Description
Technical Field
The invention relates to the technical field of sewage gas stripping, in particular to a novel gas stripping device.
Background
With the increasingly prominent economic development and environmental problems, the country pays more and more attention to the environmental protection problem. At the present stage, the national requirements for improving the discharge standard of treated sewage by sewage treatment plants are met, and the discharge standard of the treated sewage is improved by a plurality of sewage treatment plants due to the fact that the plant building time is long, the secondary sewage treatment process is backward, the volume load is low, the occupied area is large, and the total nitrogen discharge exceeds the standard, and the secondary sewage treatment process is improved. The process modification is carried out on the basis of the principle that the standard discharge is met and the comprehensive cost of sewage treatment is reduced as much as possible, and the biochemical tank is modified into the MBBR process on the premise of not increasing new occupied land and building new structures, so that the process has the advantages of short modification period, obvious treatment effect after modification and the like, and is highly popular with environmental protection experts and operation enterprises.
The MBBR technology principle is that a certain amount of suspension carriers are added into a reactor to improve the biomass and the biological species in the reactor, thereby improving the treatment efficiency of the reactor. As the density of the filler is close to that of water, the filler is completely mixed with the water during aeration, and the environment for the growth of microorganisms is three phases of gas, liquid and solid. The collision and shearing action of the carrier in water makes air bubbles finer, and the utilization rate of oxygen is increased. In addition, each carrier has different biological species inside and outside, anaerobic bacteria or facultative bacteria grow inside, and aerobic bacteria grow outside, so that each carrier is a micro-reactor, nitrification reaction and denitrification reaction exist simultaneously, and the treatment effect is improved.
The MBBR technology has the advantages of both a traditional fluidized bed and a biological contact oxidation method, is a novel efficient sewage treatment method, ensures that a carrier is in a fluidized state by means of aeration in an aeration tank and the lifting action of water flow, further forms activated sludge for suspension growth and a biomembrane for attachment growth, so that the biomembrane for the moving bed uses the space of the whole reactor, fully exerts the advantages of both attachment phase and suspension phase organisms, makes the organisms benefit from the advantages of both attachment phase and suspension phase organisms, and supplements each other. Unlike previous packings, suspended packings are called "mobile biofilms" because they are able to come into contact with the sewage many times.
The key point of the MBBR technology lies in researching and developing biological filler which has the specific gravity close to water and is easy to freely move along with the water under slight stirring, and the biological filler has the characteristics of large effective specific surface area, suitability for microbial adsorption growth, strong applicability and wide application range, and can be used for removing organic matters and nitrogen and phosphorus; the method can be used for not only a newly-built sewage treatment plant, but also the process improvement and upgrading of the existing sewage treatment plant. The MBBR process is mainly characterized by comprising the following steps: firstly, the processing load is high; the volume of the oxidation pond is small, and the capital investment is reduced; the MBBR process does not need sludge reflux equipment and back flushing equipment, so that equipment investment is reduced, the operation is simple and convenient, and the running cost of sewage is reduced; the MBBR process has low sludge yield, and reduces the sludge treatment cost; and a filler support is not needed in the MBBR process, and the MBBR is directly added, so that the installation time and the cost are saved.
In the MBBR technology, intercepting nets are usually arranged at the water inlet and the water outlet of a biochemical pool, and the loss of carriers can be avoided through the intercepting action of the intercepting nets. The carriers in the biochemical pool are gathered to the water outlet of the biochemical pool along with the sewage, so that the carriers in the biochemical pool are unevenly distributed. In order to make the carrier uniformly distributed in the biochemical pool, the following measures are generally adopted: when the length and the width of the biochemical tank are close, an aeration flushing device is added in front of the interception net on the water outlet side, strong aeration airflow is utilized to stir circulating water flow formed from the tank tail to the tank head, and the carrier is conveyed to the tank head of the aeration tank; when the length ratio of the biochemical pool is much larger than the width, a carrier lifting device needs to be arranged to convey the carrier at the tail of the pool to the head of the pool, and a common mode is to adopt a gas stripping device.
When the conventional gas stripping device is used for gas stripping of liquid in an MBBR (moving bed biofilm reactor) process biochemical pool, the liquid in the biochemical pool can be simply stripped from one region to another region, and the carrier in the liquid cannot be optimized.
Disclosure of Invention
Therefore, the invention provides a novel air lifting device, which aims to solve the problem that when the existing air lifting device is applied to MBBR sewage treatment engineering, the carrier in liquid can not be optimized only by simply lifting the liquid position.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a novel air stripping device which comprises an air conveying pipe, an air stripping pipe, a liquid inlet pipe and a friction piece, wherein the air stripping pipe is in an inclined L shape, the liquid inlet pipe is connected to the bottom end of the air stripping pipe, an air inlet of the air conveying pipe is used for filling air, an air outlet of the air conveying pipe is connected to the bottom of the air stripping pipe in a fluid communication mode and is positioned above the liquid inlet pipe, and the friction piece comprises a plurality of friction bulges uniformly distributed on the inner wall of the air stripping pipe.
Furthermore, the liquid inlet pipe is trumpet-shaped, and the smaller end of the trumpet-shaped liquid inlet pipe is connected with the gas stripping pipe; the horn-shaped liquid inlet pipe and the gas stripping pipe are integrally formed.
Further, the friction arch is drop-shaped and the surface is smooth, and is a plurality of the equal parallel arrangement of friction arch, every drop-shaped friction arch is all that the pointed end sets up upwards.
Furthermore, a plurality of water-drop-shaped friction bulges are annularly arranged on the inner wall of the gas stripping pipe in a multi-layer mode, the layer intervals of the friction bulges on different layers are equal, the interval between every two adjacent friction bulges in the same layer is equal, and the axial projections of every two adjacent friction bulges are not overlapped.
Furthermore, a plurality of water-drop-shaped friction protrusions are annularly arranged on the inner wall of the gas stripping pipe in three layers.
Further, the axial projections of the friction bulges on the top layer and the bottom layer are coincident, and each friction bulge on the middle layer is arranged between the centers of the two adjacent friction bulges on the top layer or the bottom layer.
Further, the gas stripping pipe is the constant diameter pipe, follows the gas stripping pipe is radial, the ratio of the two times diameter numerical value of friction protruding maximum diameter department with the gas stripping pipe internal diameter is 1: (5-15).
Further, the air stripping pipe comprises a vertical section and a horizontal section, and the friction bulge is arranged on the inner wall of the air stripping pipe of the vertical section; the ratio of the length of the friction bulge of the air stripping pipe to the length of the vertical section of the air stripping pipe is 1: (2-5).
Further, a plurality of the friction protrusions are integrally formed with the stripper tube.
Furthermore, the novel air stripping device further comprises a compressed air machine and an air-liquid separation box, wherein an air outlet of the compressed air machine is connected with an air inlet of the air conveying pipe, and the air-liquid separation box is arranged on the air stripping pipe of the horizontal section.
The invention has the following advantages:
according to the novel air stripping device, the plurality of friction protrusions are arranged on the inner wall of the air stripping pipe, when the air stripping device is used for lifting liquid in a biochemical pool in an MBBR sewage treatment system, and when a gas-liquid mixture is lifted to other areas through the air stripping pipe, a carrier in the liquid in the biochemical pool is in collision contact with the friction protrusions, a low-activity and thick biological membrane on the carrier can fall off, the frequency of updating and replacing the biological membrane on the carrier can be effectively increased, the biological membrane on the carrier is always in a high-activity state, and further a better sewage treatment effect can be obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
FIG. 1 is a schematic diagram of a novel stripping apparatus provided in examples 1 and 2 of the present invention;
FIGS. 2 to 4 are schematic structural views of the friction protrusions on the inner wall of the gas stripping tube in the novel stripping apparatus according to embodiments 3 and 5 of the present invention;
in the figure:
1 air stripping pipe, 2 gas-supply pipe, 3 liquid inlet pipe, 4 friction bulges.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
This embodiment provides a novel air stripping device, as shown in fig. 1, this novel air stripping device includes gas-supply pipe 2, air stripping pipe 1, feed liquor pipe 3 and friction spare, air stripping pipe 1 is emptys the L shape, feed liquor pipe 3 connect in air stripping pipe 1's bottom, the income gas port of gas-supply pipe 2 be used for inflating gas, gas outlet fluid connect in air stripping pipe 1's bottom just is located the top of feed liquor pipe 3, the friction spare is including evenly laying in a plurality of friction arch 4 on the 1 inner wall of air stripping pipe.
The novel gas stripping device of this embodiment utilizes the density difference of the inside and outside liquid of gas stripping pipe, makes liquid obtain promoting. When the device is used, the liquid inlet pipe 3 can be placed at a place where carriers inside a biochemical pool in an MBBR sewage treatment system are dense, high-pressure gas such as compressed air and the like is input into the air lifting pipe 1 through the gas conveying pipe 2, the aeration is violent, the water surface is obviously higher than the surrounding water surface, because the effective density of liquid in the area of the biochemical pool is reduced after the gas is input, the product of the gravity acceleration and the water depth is naturally reduced, the numerical value obtained by the product is the pressure intensity, the local pressure intensity in the area is reduced, the fluid pressure drives the surrounding liquid to flow to the area, so that the local water depth is increased, the pressure balance can be achieved, therefore, after the compressed air is mixed with sewage or sludge through the liquid inlet pipe 3, the density of the formed mixed liquid is lower than that of the original liquid, the density difference forms the height change of the liquid level inside and outside the air lifting pipe 1, the mixed liquid with small density is raised and, the air stripping process is completed, the liquid in the dense place of the carrier in the biochemical pool is smoothly conveyed to other positions, and then the carrier in the whole biochemical pool is more uniformly distributed.
The novel air stripping device of this embodiment is provided with a plurality of friction archs 4 on 1 inner wall of air stripping pipe, like this, when the air stripping device is arranged in the promotion of biochemical pond liquid in the MBBR sewage treatment system, along with gas-liquid mixture is promoted to other when regional through air stripping pipe 1, the carrier in the liquid can collide the contact with friction archs 4 in the biochemical pond, activity is low on the carrier, thicker biomembrane can drop, can effectively increase the frequency that the biomembrane updated on the carrier, make the biomembrane be in higher activity state on the carrier always, and then can obtain better sewage treatment effect.
Example 2
The novel gas stripping device in embodiment 1 is shown in fig. 1, wherein the liquid inlet pipe 3 is trumpet-shaped, and the smaller end of the trumpet-shaped liquid inlet pipe 3 is connected to the gas stripping pipe 1;
the horn-shaped liquid inlet pipe 3 and the gas stripping pipe 1 are integrally formed.
The liquid inlet pipe 3 is trumpet-shaped, so that the compressed air and other gases conveyed to the liquid inlet pipe can be quickly discharged into liquid through the gas conveying pipe 2, and gas-liquid mixture can also more quickly enter the gas stripping pipe 1 through the liquid inlet pipe 3 and begin to be stripped to other positions.
Example 3
The novel air stripping device in embodiment 1, as shown in fig. 2-4, the friction protrusions 4 are drop-shaped and have smooth surfaces, the friction protrusions 4 are all arranged in parallel, and each drop-shaped friction protrusion 4 is arranged with its tip facing upwards.
According to the venturi theory, the friction bulge is designed into a three-dimensional polyhedron drop shape, so that pressure difference is generated when water and air flow, disturbance of water flow is increased, the contact collision probability of a carrier and the friction bulge in the water flow is increased, meanwhile, the air in the water flow is cut into micro bubbles, the dissolution of oxygen in the water can be promoted, more dissolved oxygen is provided for a biological membrane on the carrier, and the activity of microorganisms on the carrier biological membrane can be promoted by higher dissolved oxygen concentration; when the carrier is thrown into the inlet of the biochemical tank again in the air stripping process and the like, the carrier is in full contact with the sewage newly entering the biochemical tank, so that organic matters in the sewage can be quickly adsorbed, supplemented and degraded, the advantages of the biomembrane method can be exerted to the maximum extent, and the treatment efficiency of the biomembrane on the carrier is improved.
The novel gas stripping device plays a role in gas stripping of liquid in the biochemical pool, and mainly embodies two aspects: firstly, the carriers in the biochemical tank are lifted, so that the uniform distribution of the carriers in the whole biochemical tank is ensured; and secondly, the carrier is promoted and the biomembrane on the carrier is updated and activated, so that the overall activity of the biomembrane on the carrier is improved, and the treatment effect of the biomembrane is enhanced. Therefore, the use of the novel air stripping device has important significance for guaranteeing the high-efficiency and stable operation of the whole biochemical pool.
Example 4
The novel gas stripping device in embodiment 3 is characterized in that the friction bulges 4 in a plurality of water drops are annularly arranged on the inner wall of the gas stripping pipe 1 in a multi-layer mode, the interlayer spacing of the friction bulges 4 in different layers is equal, the interval between every two adjacent friction bulges 4 in the same layer is equal, and the axial projection of every two adjacent friction bulges 4 is not overlapped.
The arrangement mode of the friction bulges 4 can better play a role in updating and activating the biological membrane on the carrier.
Example 5
In the novel stripping apparatus according to embodiment 4, as shown in fig. 2 to 4, a plurality of drop-shaped friction protrusions 4 are annularly arranged on the inner wall of the stripping tube 1 in three layers.
The axial projections of the friction bulges 4 on the top layer and the bottom layer are coincident, and each friction bulge 4 on the middle layer is arranged between the centers of the two friction bulges 4 on the top layer or the bottom layer.
In the novel air stripping device of the embodiment, the arrangement mode of the plurality of friction protrusions 4 is a preferable arrangement mode, and multiple experiments by the inventor show that: when being used for the promotion of biochemical pond liquid in the MBBR sewage treatment system with above-mentioned novel air stripping device, the protruding 4 arrangement of friction can be more effectively updated and activated the biomembrane in this embodiment, and pollutants such as organic matter in the same sewage can be decomposed more fast.
Example 6
The novel gas stripping device as in embodiment 3, the gas stripping tube 1 is a constant diameter tube, and along the radial direction of the gas stripping tube 1, the ratio of the value of the diameter twice of the maximum diameter of the friction protrusion 4 to the inner diameter of the gas stripping tube 1 is 1: 5-15.
The gas stripping pipe 1 comprises a vertical section and a horizontal section, and the friction bulge 4 is arranged on the inner wall of the gas stripping pipe 1 of the vertical section;
the ratio of the length of the gas stripping pipe 1 provided with the friction protrusions 4 to the length of the gas stripping pipe 1 in the vertical section is 1: 2-5.
In the parameter range of this embodiment, firstly, the setting of friction arch 4 can exert fine collision formula renewal, activation effect, and secondly, the setting of friction arch 4 can not cause the influence for the air stripping speed of novel air stripping device.
Example 7
The novel gas stripping apparatus as set forth in embodiment 6 wherein a plurality of said friction protrusions 4 are integrally formed with said gas stripping tube 1. Therefore, the air stripping pipe 1 and the friction bulges 4 have good stability, and the friction bulges 4 can play collision type updating and activating roles more stably and durably in the air stripping process.
Example 8
The novel gas stripping device of embodiment 6, the novel gas stripping device still includes compressed air machine and gas-liquid separation case, the gas outlet of compressed air machine with the gas inlet of gas-supply pipe 2 is connected, the gas-liquid separation case set up in the gas stripping pipe 1 on the horizontal segment.
Like embodiment 6 the gas stripping tube 1 includes vertical section and horizontal segment, and the gas-liquid separation case can set up in the middle part of the horizontal segment of gas stripping tube 1, perhaps sets up in the exit position of the horizontal segment of gas stripping tube 1, and after this gas-liquid mixture got into this gas-liquid separation case, gas and liquid separated through the buffering process, and the air is released, can reduce the flow resistance of mixed liquid in the channel behind the gas stripping like this, and the liquid after the gas stripping can be discharged more smoothly.
The novel gas stripping device described in the above embodiment is particularly suitable for sewage treatment projects adopting MBBR technology.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a novel air stripping device, its characterized in that, this novel air stripping device include gas-supply pipe (2), air stripping pipe (1), feed liquor pipe (3) and friction spare, air stripping pipe (1) is emptys L shape, feed liquor pipe (3) connect in the bottom of air stripping pipe (1), the income gas port of gas-supply pipe (2) be used for filling gas, gas outlet fluid connect in the bottom of air stripping pipe (1) just is located the top of feed liquor pipe (3), the friction spare is including evenly laying in a plurality of friction arch (4) on the inner wall of air stripping pipe (1).
2. The new gas stripping device as claimed in claim 1, characterized in that the liquid inlet pipe (3) is trumpet-shaped, and the smaller end of the trumpet-shaped liquid inlet pipe (3) is connected to the gas stripping pipe (1);
the trumpet-shaped liquid inlet pipe (3) and the air stripping pipe (1) are integrally formed.
3. The novel gas stripping device as claimed in claim 1, characterized in that the friction elevations (4) are drop-shaped and have a smooth surface, a plurality of friction elevations (4) are arranged in parallel, and the friction elevations (4) of each drop-shape are arranged with their tips facing upwards.
4. The novel gas stripping device as claimed in claim 3, characterized in that a plurality of drop-shaped friction protrusions (4) are annularly arranged on the inner wall of the gas stripping tube (1) in multiple layers, the layer spacing of the friction protrusions (4) in different layers is equal, the spacing between every two adjacent friction protrusions (4) in the same layer is equal, and the friction protrusions (4) in every two adjacent layers do not overlap in axial projection.
5. The new gas stripping device as claimed in claim 4, characterized in that the friction bulges (4) in the form of a plurality of water drops are arranged in the form of a three-layer ring on the inner wall of the gas stripping tube (1).
6. The new gas stripping device according to claim 5, characterized in that the axial projections of the friction bulges (4) at the top and bottom layers coincide, each friction bulge (4) of the middle layer being interposed between the top or bottom layer adjacent to the center of two friction bulges (4).
7. The new gas stripping device as claimed in claim 3, characterized in that the stripper tube (1) is a constant diameter tube, and the ratio of the value of the double diameter at the maximum diameter of the friction projection (4) to the inner diameter of the stripper tube (1) in the radial direction of the stripper tube (1) is 1: (5-15).
8. The novel gas stripping device as claimed in claim 3, characterized in that the gas stripping tube (1) comprises a vertical section and a horizontal section, the friction projection (4) being provided on the inner wall of the gas stripping tube (1) of the vertical section;
be provided with friction arch (4) the length of air stripping pipe (1) and vertical section the ratio of air stripping pipe (1) length is 1: (2-5).
9. The new gas stripping device as claimed in claim 8, characterized in that a plurality of the friction projections (4) are formed integrally with the gas stripping tube (1).
10. The novel gas stripping device as claimed in claim 8, further comprising a compressed air machine and a gas-liquid separation tank, wherein the gas outlet of the compressed air machine is connected with the gas inlet of the gas pipe (2), and the gas-liquid separation tank is arranged on the gas stripping pipe (1) in the horizontal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796381.4A CN112010423A (en) | 2020-08-10 | 2020-08-10 | Novel air lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796381.4A CN112010423A (en) | 2020-08-10 | 2020-08-10 | Novel air lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112010423A true CN112010423A (en) | 2020-12-01 |
Family
ID=73499245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010796381.4A Withdrawn CN112010423A (en) | 2020-08-10 | 2020-08-10 | Novel air lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112010423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856952A (en) * | 2022-04-12 | 2022-08-05 | 麦王环境技术股份有限公司 | Air distribution device of air lift pump and air lift pump with air distribution device |
-
2020
- 2020-08-10 CN CN202010796381.4A patent/CN112010423A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856952A (en) * | 2022-04-12 | 2022-08-05 | 麦王环境技术股份有限公司 | Air distribution device of air lift pump and air lift pump with air distribution device |
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Application publication date: 20201201 |