CN212770075U - Oxygen-poor pool gas stirring device - Google Patents
Oxygen-poor pool gas stirring device Download PDFInfo
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- CN212770075U CN212770075U CN202022216668.3U CN202022216668U CN212770075U CN 212770075 U CN212770075 U CN 212770075U CN 202022216668 U CN202022216668 U CN 202022216668U CN 212770075 U CN212770075 U CN 212770075U
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Abstract
The utility model discloses in to prior art, when adopting gas agitating unit to stir the oxygen deficiency pond, cause dissolved oxygen to exceed standard easily, and only vertical stirring produces the blind spot easily, mud and water mix insufficient problem, provide an oxygen deficiency pond gas agitating unit, the device is including confined gas stirring pipe, set up the ascending exhaust hole of opening on the pipe wall, the top slope in exhaust hole sets up the direction piece, by exhaust hole combustion gas under the direction piece effect, produce horizontal and two vertical directions of motion, horizontal and vertical motion's gas drives horizontal and vertical motion of rivers, rivers interweave each other, the blind spot of vertical stirring has been eliminated, the utility model provides an oxygen deficiency pond gas agitating unit utilizes less gas to realize good stirring effect, reduces the degree of mixing that dissolved oxygen volume has strengthened mud and water, has improved the treatment effect of sewage.
Description
Technical Field
The utility model relates to a sewage treatment technical field, in particular to oxygen deficiency pond gas agitating unit.
Background
At present, in domestic integrated treatment equipment, a sewage treatment biochemical part is mainly divided into an anaerobic tank, an anoxic tank and an aerobic tank, and in order to enable water quality to be more uniform and prevent biochemical sludge from depositing at the bottom of a tank and influencing treatment effect, various tank bodies are required to be stirred. The dissolved oxygen content of the anoxic tank is 0.2-0.5mg/L, when sewage treatment is carried out, water in the anoxic tank is usually stirred by adopting a mechanical stirring device and a gas stirring device, when the mechanical stirring device is adopted for stirring, a diving stirrer is generally adopted, but the volume of the integrated equipment tank body is smaller, a matched small diving stirring device is not arranged on the market, the rated power of the existing stirring device is far higher than the use requirement, the stirring device is high in price and large in rated power, unnecessary electric energy consumption is increased, the movement cost is high, the failure rate of an underwater operation motor is high, and the service life is short. When the gas stirring device is adopted for stirring, the gas stirring pipeline is used for ventilating underwater to realize the stirring of water, and the working principle of the gas stirring device is as follows: because bottom of the pool liquid pressure is greater than the pressure of cell body upper portion liquid, gaseous by the bottom of the pool upward movement when ventilating to the bottom of the pool, gaseous in-process bubble constantly increase or fracture at upward movement drives rivers and flows to stir the interior sewage of pond. When adopting gas stirring device to stir, because need each pond in to fill air, consequently though can practice thrift the energy consumption, reduce cost, but very easily cause the dissolved oxygen in the oxygen deficiency pond to exceed standard, moreover, because the bubble is vertical to be risen, only form the stirring district in vertical direction, its stirring direction is single, produces the stirring blind spot easily, causes between mud and the water and mixes inadequately to lead to when carrying out sewage treatment, the treatment effect is unsatisfactory.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing, to prior art, when adopting gas agitating unit to stir the oxygen deficiency pond, cause the dissolved oxygen in the oxygen deficiency pond to exceed standard easily, moreover, gas can only carry out vertical stirring, mixes inadequately between mud and the water to when leading to handling sewage, the unsatisfactory problem of treatment effect provides an oxygen deficiency pond gas agitating unit.
The utility model aims at realizing through the following technical scheme:
an anoxic pond gas stirring device comprises a gas stirring pipe, wherein the gas stirring pipe is a closed pipeline, a gas exhaust hole is formed in the pipe wall of the gas stirring pipe, when the gas stirring pipe is located at a working position, the opening of the gas exhaust hole faces upwards, a guide sheet is obliquely arranged above the opening of the gas exhaust hole, the vertical distance between one end of the guide sheet and the gas stirring pipe is smaller than the vertical distance between the other end of the guide sheet and the gas stirring pipe, and gas exhausted from the gas exhaust hole is blocked by the guide sheet;
the exhaust holes are arranged on the left half wall and the right half wall of the gas stirring pipe along the axial direction of the gas stirring pipe, the exhaust holes on the left half wall and the exhaust holes on the right half wall are sequentially arranged oppositely, and the central lines of the two exhaust holes are on the same cross section of the gas stirring pipe;
the exhaust holes on the left half wall and the exhaust holes on the right half wall of the gas stirring pipe are arranged in a staggered manner, and the exhaust holes on the left/right half wall correspond to the middle positions of the two exhaust holes on the right/left half wall;
the aperture of the vent hole is 3-8mm, the included angle between the central line of the vent hole and the vertical surface is 15-55 degrees, the distance between two adjacent vent holes along the axis of the air stirring pipe is 100-500mm, the inclination directions of the guide pieces corresponding to the vent holes on the left half wall are consistent, and the inclination directions of the guide pieces corresponding to the vent holes on the right half wall are consistent and opposite to the inclination direction of the guide pieces on the left half wall;
the gas stirring pipe comprises a main pipe and branch pipes, one end of the main pipe is closed, the other end of the main pipe is communicated with a gas source through a gas inlet pipe, the branch pipes are arranged on the side surface of the main pipe, one end of each branch pipe is communicated with the main pipe, the other end of each branch pipe is closed, exhaust holes are formed in the pipe walls of the branch pipes, and the pipe central lines of the branch pipes are positioned in;
the gas stirring pipe comprises an annular pipe, the annular pipe is communicated with a gas source through a gas inlet pipe, and a communicating pipe fitting is arranged in a cavity of the annular pipe and is communicated with the annular pipe;
a first sludge discharge port with a downward opening is arranged on the main pipe, the first sludge discharge port is arranged along the length direction of the main pipe, and the opening direction of the first sludge discharge port is opposite to the opening direction of the exhaust hole and is larger than the opening size of the exhaust hole;
the main pipe is provided with a first sludge discharge port, and the cross section of the position of the main pipe where the sludge discharge port is arranged is in an inverted U shape with an opening at the bottom;
a second sludge discharge opening with a downward opening is formed in the position, corresponding to the position between the two adjacent exhaust holes, on the pipe wall below the gas stirring pipe;
the end of the air inlet pipe close to the air source is provided with an electromagnetic valve, and the air inlet pipe is controlled to be intermittently opened and closed through the electromagnetic valve.
Adopt the utility model provides an oxygen deficiency pond gas agitating unit, because set up the direction piece on gas stirring pipe, the direction piece slope sets up the top in the export of exhaust hole, after gaseous by exhaust hole discharge, the direction piece has blockked gaseous ascending route, gaseous rising orbit has been changed, gaseous production is horizontal and vertical two direction of motion under the direction piece effect, transverse motion's gaseous rivers drive the transverse flow in certain extent, longitudinal motion's gaseous rivers that drive flow on vertical, thus, transverse stirring district has been run through between vertical stirring district, transverse flow's rivers interweave with longitudinal flow's rivers, mix mud and water fully, the regional blind spot of vertical stirring has been eliminated, the stirring degree of consistency of mud and water has been strengthened, the treatment effect of sewage has been improved. Meanwhile, as the gas is stirred from two directions, good stirring effect can be realized only by introducing less gas into the anoxic tank, and the problem that the dissolved oxygen exceeds the standard due to excessive gas introduction is avoided.
Drawings
Fig. 1 is a schematic view of an oxygen-deficient pool gas stirring device according to an embodiment of the present invention in a top view state;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic top view of another embodiment of the anoxic pond gas stirring apparatus of the present invention;
fig. 5 is an isometric view of the structure of the embodiment of the present invention.
Description of the reference numerals
1. An electromagnetic valve; 2. an air inlet pipe; 3. an anoxic tank; 4. a main pipe; 41. a first sludge discharge port; 5. a branch pipe; 51. an exhaust hole; 52. a second sludge discharge port; 6. a guide piece; 7. a support bar; 8. a fixed mount; 9. an annular tube; 91. a communicating pipe fitting; 11. a gas agitation pipe.
Detailed Description
The invention will be further described with reference to specific embodiments:
the utility model provides an oxygen deficiency pond gas agitating unit, as shown in fig. 1-5, including gas mixing pipe 11, intake pipe 2, solenoid valve 1 and set up at 3 outside compressed air sources in oxygen deficiency pond (not drawn in the picture), gas mixing pipe 11 is the closed pipeline, and general level sets up in 3 bottoms in oxygen deficiency pond, and gas mixing pipe passes through intake pipe 2 and compressed air source intercommunication, and solenoid valve 1 sets up the one end that is close to the compressed air source in intake pipe 2, through opening and close of 1 control intake pipe 2 of solenoid valve.
The pipe orifices at the two ends of the gas stirring pipe are closed, a plurality of exhaust holes are arranged on the pipe wall, the outlets of the exhaust holes 51 are vertically upward or obliquely upward, preferably obliquely upward, that is to say, the exhaust holes 51 are arranged at the upper half part of the gas stirring pipe, so as to be beneficial to the gas discharge. Preferably, the vent holes are respectively arranged on the left half wall and the right half wall of the gas stirring pipe, the vent hole outlet on the left half wall is inclined towards the upper left, the vent hole outlet on the right half wall is inclined towards the upper right, the inclination angle a of the vent hole and the vertical plane is between 15-55 degrees, the aperture of the vent hole is preferably 3-8mm, and the center distance of two adjacent vent holes along the axis of the gas stirring pipe is between 100 and 500mm, preferably 200 and 500 mm. The exhaust holes in the left half wall and the right half wall can be arranged oppositely or in a staggered manner, the hole center lines of the two opposite exhaust holes are positioned on the same cross section of the air stirring pipe when the exhaust holes are arranged oppositely, and the exhaust holes in the left/right half wall correspond to the middle positions of the two adjacent exhaust holes in the right/left half wall when the exhaust holes are arranged in a staggered manner.
An inclined guide sheet 6 is correspondingly arranged above each exhaust hole 51, one end of each guide sheet is fixedly connected with the outer wall of the gas stirring pipe, and the other end of each guide sheet is a free end. The guide sheet inclines along the axial direction of the gas stirring pipe or inclines along the direction vertical to the axial line of the gas stirring pipe, or forms any angle. The inclination angle of the guide piece corresponding to each exhaust hole on the left half wall or the right half wall on the air stirring pipe can be different, but the inclination direction is preferably consistent, and the inclination direction of the guide piece corresponding to the exhaust hole on the left half wall is opposite to that of the guide piece corresponding to the exhaust hole on the right half wall.
The utility model provides an optimal structure does: the exhaust holes in the left half wall and the right half wall are oppositely arranged, two guide pieces corresponding to the two oppositely arranged exhaust holes are inclined along the direction vertical to the axis of the gas stirring pipe, the two guide pieces are fixedly connected with the pipe wall through the same support rod 7, the height of the support rod 7 is preferably 50-200mm, the included angle 2 alpha of the central lines of the two oppositely arranged exhaust holes is 90 degrees, and the included angle beta between the two guide pieces is 100 degrees. In the structure, the gas exhausted from the exhaust holes arranged oppositely moves transversely in two completely opposite directions under the action of the guide sheet, and the formed bubbles are guided to a far distance by the guide sheet in the rising process, so that the bubbles exhausted from the two exhaust holes are effectively prevented from colliding.
The gas stirring pipe can be provided in various shapes or structures, for example, the gas stirring pipe can only comprise one pipeline, the pipeline can be in a straight line shape, a curve shape, a fold line shape and the like, and the gas stirring pipe also can comprise a plurality of pipelines, and the pipelines can be mutually connected in different connection structures.
Regarding the structure of gas stirring pipe, the utility model provides two kinds of embodiments as follows supply the reference:
the first embodiment is as follows: the air inlet pipe comprises a main pipe 4 and branch pipes 5, wherein the main pipe 4 is preferably a rectangular pipe, one end of the main pipe 4 is communicated with the air inlet pipe 2, the other end of the main pipe is closed, the branch pipes 5 are horizontally arranged on two sides of the main pipe 4, one end of each branch pipe is communicated with the main pipe 4, and the other end of each branch pipe is closed. Each side of the main pipe 4 can be provided with a plurality of branch pipes 5, the branch pipes 5 on two sides can be staggered or symmetrically arranged, the axis of the branch pipe 5 and the axis of the main pipe 4 can be vertical or inclined for a certain angle, the preferred vertical arrangement is realized, the spacing of the branch pipes on the same side is preferably 300-500mm, the exhaust holes 51 can be arranged on the main pipe and the branch pipes, and the preferred arrangement is only on the branch pipes 5. The main pipe and the branch pipe can be respectively arranged in a linear shape, a curved shape, a broken line shape and the like.
Example two: as shown in fig. 4, includes an annular pipe 9, and the annular pipe 9 communicates with the intake pipe 2. A communicating pipe 91 is provided in the annular space of the annular pipe, and both ends of the communicating pipe are respectively communicated with the annular pipe. The annular pipe can be a rectangular ring, a circular ring or an elliptical ring, preferably the annular pipe 9 is rectangular, preferably the communication pipe member 91 equally divides the annular space of the annular pipe, and the exhaust holes 51 are formed in the annular pipe 9 and the communication pipe member 91. The communicating pipe members 91 may be one or more, when a plurality of communicating pipe members are provided, the communicating pipe members may be parallel to each other or may intersect to form a grid, and the distance between the annular pipe 9 and the adjacent communicating pipe member 91 and the distance between the adjacent communicating pipe members are preferably 300-1000 mmm.
Of course, when the device comprises the annular pipes, a plurality of annular pipes can be arranged to be in a concentric circle structure, the annular pipes are communicated with one another through the communicating pipe fittings, and each annular pipe and/or each communicating pipe fitting can be provided with the exhaust hole.
During operation, will be responsible for 4 or ring pipe 9 and fix in 3 bottoms in oxygen deficiency pond through mount 8, open solenoid valve 1, compressed air enters into the gas stirring pipe to discharge by the exhaust hole, stir sewage. Because the density of the gas is less than that of the water, and because the upper liquid level and the lower liquid level in the sewage pool have pressure difference, the pressure of the upper liquid level is less than that of the lower liquid level, the discharged gas moves vertically upwards, because the guide sheet 6 is obliquely arranged above the outlet of the exhaust hole, the gas collides with the guide sheet 6 in the ascending process, the guide sheet 6 generates reverse acting force on the ascending gas, the gas moves along the transverse direction and the vertical direction under the reverse acting force, a part of the gas moves for a distance in the transverse direction, and the other part of the gas bypasses the free end of the guide sheet 6 and then keeps moving vertically upwards. Lateral motion's gas drives local rivers lateral flow, realize horizontal stirring in local region, lateral motion's gas still can vertical upward movement at last, carry out vertical stirring, consequently, by same exhaust hole 51 combustion gas, stir at local region internal at first in horizontal and vertical two directions under the effect of guide vane 6, then form two vertical stirring regions on vertical, so not only increased the stirring area, and make the stirring more abundant, realized utilizing a small amount of gas to reach better stirring effect's purpose.
Further, the electromagnetic valve 1 is used for intermittently supplying air to the air stirring pipe, the air inflow is controlled by controlling the air inflow strength and time, the output pressure of an air source is preferably 1-2.5 times of the water pressure of the water level where the exhaust hole is located, and the air inflow in the air stirring pipe is preferably 0.01-0.05m for cultivating trees/square meters. The aeration time in the anoxic tank is preferably 1-5 minutes, the interval time is preferably 10-30 minutes, namely aeration is carried out for 1-5 minutes every 10-30 minutes, the sewage is fully mixed by the gas within 1-5 minutes of aeration, the sludge and the water are gradually separated within 10-30 minutes after the aeration is stopped, and air inlet operation is carried out before the water and the sludge are completely separated, so that not only can the stirring effect be ensured, but also the dissolved oxygen can be controlled below 0.5mg/L on the premise of ensuring the stirring effect. However, when the aeration in the gas stirring pipe is stopped, sewage enters the gas stirring pipe under the action of water pressure, and the inner cavity of the pipe is blocked. In order to prevent the sludge from blocking the inner cavity of the gas stirring pipe, a sludge discharge opening with a vertical downward opening is arranged on the gas stirring pipe.
In the first embodiment, the lower end of the main pipe 4 is provided with the first sludge discharge port 41, the lower end of the branch pipe 5 is provided with the second sludge discharge port 52, the first sludge discharge ports 41 may be intermittently arranged along the length direction of the main pipe 4, or the bottom of the main pipe 4 may be completely opened to form an open shape, that is, the main pipe 4 is in a bottom-inverted U shape. The second sludge discharge openings 52 can be arranged in a plurality along the length direction of the branch pipe 5, and are preferably arranged between two adjacent pairs of the exhaust holes 51, and the second sludge discharge openings 52 can be circular, and the diameter of the second sludge discharge openings 52 is preferably 15-25 mm. Like this, after the gas stirring pipe inner chamber is blockked up by silt, when ventilating once more, because be responsible for 4 and be the type of falling U, mud discharge opening 41 is great, utilizes compressed air's atmospheric pressure to assault 4 inner chambers of being responsible for, and compressed air's pressure is greater than the atmospheric pressure of normal during operation this moment, is greater than the water pressure that the position was located to the mud discharge opening simultaneously, because silt proportion is greater than the proportion of water, under the effect of atmospheric pressure, silt is discharged by mud discharge opening 41 easily. After the sludge is discharged, compressed air is continuously injected into the main pipe 4, and after the compressed air enters the branch pipes 5, the compressed air impacts the sludge in the branch pipes, so that the sludge in the branch pipes 5 is discharged from the sludge discharge port II 52, and a small amount of sludge can be discharged from the exhaust holes. The gas stirring pipe in the second embodiment is provided with a second sludge discharge port which is the same as that on the branch pipe in the first embodiment, and the sludge discharge principle in the second embodiment is the same as that in the branch pipe in the first embodiment. Because the water pressure below the sludge discharge port is greater than the water pressure above the exhaust hole, the water pressure below the sludge discharge port seals the sludge discharge port and prevents gas from being discharged downwards, therefore, when the air is normally ventilated, the gas in the gas stirring cannot be discharged from the sludge discharge port, and can only be discharged upwards through the exhaust hole.
Claims (11)
1. The utility model provides an oxygen deficiency pond gas agitating unit, includes gas stirring pipe, gas stirring pipe is closed tube way, be provided with exhaust hole (51) on the gas stirring pipe wall, its characterized in that works as when gas stirring pipe is located the work position the opening in exhaust hole is towards the top the open-ended top slope in exhaust hole (51) is provided with guide plate (6), and the one end of guide plate (6) and the vertical distance of gas stirring pipe are less than the other end and the vertical distance of gas stirring pipe, by exhaust hole (51) combustion gas the guide plate (6) block.
2. The anoxic pond gas stirring apparatus according to claim 1, wherein the gas exhaust holes (51) are formed in the left half wall and the right half wall of the gas stirring pipe along the axial direction of the gas stirring pipe, the gas exhaust holes (51) in the left half wall are sequentially arranged opposite to the gas exhaust holes (51) in the right half wall, and the center lines of the two gas exhaust holes (51) are on the same cross section of the gas stirring pipe.
3. The anoxic pond gas agitation apparatus according to claim 1, wherein the gas discharge holes (51) on the left half wall and the gas discharge holes (51) on the right half wall of the gas agitation pipe are arranged alternately, and the gas discharge holes (51) on the left/right half wall correspond to the middle positions of the two gas discharge holes (51) on the right/left half wall.
4. The anoxic pond gas stirring apparatus according to claim 1, 2 or 3, wherein the diameter of the vent hole (51) is 3-8mm, the included angle between the center line of the vent hole (51) and the vertical plane is 15-55 °, the distance between two adjacent vent holes (51) along the axis of the gas stirring pipe is 100-500mm, the inclined direction of the guide piece (6) corresponding to the vent hole (51) on the left half wall is consistent, and the inclined direction of the guide piece (6) corresponding to the vent hole (51) on the right half wall is consistent and opposite to the inclined direction of the guide piece (6) on the left half wall.
5. The anoxic pond gas stirring apparatus according to claim 1, wherein the gas stirring pipe comprises a main pipe (4) and branch pipes (5), the main pipe (4) has one closed end and the other end communicated with a gas source through an inlet pipe (2), the branch pipes (5) are arranged on the side of the main pipe (4), one end is communicated with the main pipe (4) and the other end is closed, the exhaust holes (51) are arranged on the pipe walls of the branch pipes (5), and the pipe center lines of the branch pipes are located in the same plane.
6. The anoxic pond gas agitation apparatus according to claim 1, wherein the gas agitation pipe comprises an annular pipe, the annular pipe is communicated with a gas source through a gas inlet pipe (2), and a communicating pipe is arranged in a cavity of the annular pipe and is communicated with the annular pipe.
7. The anoxic pond air agitation device according to claim 5, wherein the main pipe (4) is provided with a first sludge discharge port (41) which is opened downwards, the first sludge discharge port (41) is arranged along the length direction of the main pipe (4), and the opening direction of the first sludge discharge port is opposite to the opening direction of the exhaust hole and is larger than the opening size of the exhaust hole.
8. The anoxic pond air agitation device according to claim 7, wherein the main pipe is provided with a first sludge discharge port (41), and the main pipe (4) is provided with the sludge discharge port at an inverted U-shaped cross section with an open bottom.
9. The anoxic pond gas stirring device according to claim 1, 5 or 6, wherein a second sludge discharge port (52) with a downward opening is arranged on the lower pipe wall of the gas stirring pipe corresponding to the position between two adjacent discharge holes.
10. The anoxic pond air stirring device according to claim 5 or 6, wherein the end of the air inlet pipe (2) close to the air source is provided with an electromagnetic valve (1), and the air inlet pipe (2) is controlled to be intermittently opened and closed through the electromagnetic valve (1).
11. The anoxic pond gas stirring device according to claim 1, comprising a gas inlet pipe (2), wherein one end of the gas inlet pipe (2) is communicated with the gas stirring pipe, the other end of the gas inlet pipe is communicated with a gas source, a solenoid valve (1) is arranged at one end of the gas inlet pipe (2) close to the gas source, and the gas inlet pipe (2) is controlled to be intermittently opened and closed through the solenoid valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216668.3U CN212770075U (en) | 2020-09-30 | 2020-09-30 | Oxygen-poor pool gas stirring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022216668.3U CN212770075U (en) | 2020-09-30 | 2020-09-30 | Oxygen-poor pool gas stirring device |
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| CN212770075U true CN212770075U (en) | 2021-03-23 |
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| CN202022216668.3U Active CN212770075U (en) | 2020-09-30 | 2020-09-30 | Oxygen-poor pool gas stirring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028239A (en) * | 2020-09-30 | 2020-12-04 | 秦皇岛同力达环保能源股份有限公司 | Anaerobic pool gas stirring device and stirring method for sewage treatment |
-
2020
- 2020-09-30 CN CN202022216668.3U patent/CN212770075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028239A (en) * | 2020-09-30 | 2020-12-04 | 秦皇岛同力达环保能源股份有限公司 | Anaerobic pool gas stirring device and stirring method for sewage treatment |
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