CN109467201B - Mounting method of disc aerator - Google Patents
Mounting method of disc aerator Download PDFInfo
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- CN109467201B CN109467201B CN201811287716.9A CN201811287716A CN109467201B CN 109467201 B CN109467201 B CN 109467201B CN 201811287716 A CN201811287716 A CN 201811287716A CN 109467201 B CN109467201 B CN 109467201B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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- 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
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- Biodiversity & Conservation Biology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention provides a mounting method of a disc aerator, which comprises the following steps: after the main pipe is fixed, a plurality of branch pipes communicated with the main pipe extend into a plurality of aeration tanks respectively, and one ends of the branch pipes far away from the main pipe extend towards the direction of the main pipe to form bending parts with openings; injecting liquid into the main pipe and the branch pipes, and adjusting the liquid level in the bent parts to enable the liquid levels in the bent parts in the aeration tanks to be positioned on the same horizontal plane; and taking the liquid level in the adjusted bent part as an elevation reference point, measuring the vertical distance from the elevation reference point to the first disc aerator arranged at a preset position in the aeration tank, and sequentially arranging the disc aerators in the rest aeration tanks according to the vertical distance so as to ensure that the vertical distance from the elevation reference point in each aeration tank to the disc aerators is equal. The method reduces the measurement error between the elevation reference point and the disc aerator, can reduce the workload, improves the installation efficiency of the disc aerator, and saves the construction period.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a mounting method of a disc aerator.
Background
After proper treatment, the sewage reaches a certain water quality index, meets a certain use requirement, and the water which can be reused is called reclaimed water. The reclaimed water is reused after sewage treatment, which not only reduces the pollution of sewage to the environment and improves the ecological environment, but also changes the sewage into valuables, realizes the virtuous cycle of water ecology and is beneficial to relieving the problem of shortage of water resources at present.
The regeneration water plant of the pagoda tree house is a regeneration water plant project with the biggest main treatment process in Asia and all underground, and the main purpose of the regeneration water plant project is to convert a large amount of sewage into usable regeneration water. In the sewage treatment process, the most important one is the biochemical treatment of sewage. MBR (Membrane Bio-Reactor, Membrane bioreactor) biological tanks in the whole plant area of the regeneration water plant of the Sophora japonica room have 4 seats in total, the total length of the four MBR biological tanks is 643.4 meters, the buried depth is 9 meters, and 72944 sets of disc-type aeration discs are installed. As the MBR biological tank of the regeneration water plant of the locust chamber is designed in an all-underground manner, shear walls and attached equipment in an operation layer are various, and the shear walls and the flow guide walls in the MBR biological tank divide the tank bottom into a plurality of relatively independent aeration tanks.
The disc type aerator is arranged at the bottom of the MBR biological tank, and when the disc type aerator is arranged, an elevation datum point needs to be determined firstly so that the upper surfaces of the disc type aerators in the aeration tanks are positioned on the same horizontal plane. The conventional method is to determine an elevation reference point above an MBR biological tank, the elevation reference point of each MBR biological tank needs to be positioned at the same level, and the total length of the MBR biological tank is too long, so that the reference point of each MBR biological tank is not easy to be positioned at the same level, the operation difficulty of the project is increased, and the distance measurement error between the elevation reference point and the upper surface of a disc aerator is increased. After the elevation reference point is determined, the distance between the elevation reference point and the position where the disc-type aerator needs to be installed is measured by using an infrared measuring instrument, then the distances between the disc-type aerators in the independent aeration tanks in each MBR biological tank and the elevation reference point are equal, so that the disc-type aerators installed in the independent aeration tanks in each MBR biological tank are ensured to be positioned on the same horizontal plane, after the disc-type aerators are installed, whether the disc-type aerators in each MBR biological tank are on the same level is determined again by using a level gauge, if the disc-type aerators are not installed on the same level, the disc-type aerators need to be measured and converted again, and the installation positions of the disc.
However, the elevation datum point is about 9 meters away from the bottom of the MBR biological tank, each MBR biological tank further comprises a plurality of relatively independent aeration tanks, a shear wall and a flow guide wall are arranged between adjacent independent aeration tanks, and each independent aeration tank is also provided with a plurality of auxiliary devices. And the mounting position of the disc-type aerator mounted in each independent aeration tank is adjusted again through measurement and conversion, and the conversion rate is too high due to a plurality of independent aeration tanks, so that the working efficiency is seriously reduced, and the construction period is influenced. Further, even if the mounting position of the disc aerator is adjusted again by conversion, the mounting accuracy of the disc aerator in each independent aeration tank is poor, and the relative error of the mounting position between them is large, which also affects the treatment quality of sewage.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the installation position of the disc-type aerators in a plurality of aeration tanks in the prior art is relatively large in error so as to influence the sewage treatment quality, thereby providing an installation method of the disc-type aerators.
In order to solve the technical problem, the invention provides a mounting method of a disc aerator, which comprises the following steps:
after the main pipe is fixed, a plurality of branch pipes communicated with the main pipe extend into a plurality of aeration tanks respectively, and one ends of the branch pipes far away from the main pipe extend towards the direction of the main pipe to form bending parts with openings;
injecting liquid into the main pipe and the branch pipes, and adjusting the liquid level in the bent parts to enable the liquid levels in the bent parts in the aeration tanks to be positioned on the same horizontal plane;
and taking the liquid level in the adjusted bent part as an elevation reference point, measuring the vertical distance from the elevation reference point to the first disc aerator arranged at a preset position in the aeration tank, and sequentially arranging the disc aerators in the rest aeration tanks according to the vertical distance so as to ensure that the vertical distance from the elevation reference point in each aeration tank to the disc aerators is equal.
Optionally, the bent part is arranged near the bottom of the aeration tank.
Optionally, one end of the bending part, which is close to the main pipe, is connected with a graduated tube, and the graduated tube is communicated with the main pipe through the branch pipe and is filled with liquid.
Optionally, the method for injecting liquid into the main tube and the plurality of graduated tubes comprises: opening the inlet of the main pipe, the outlet of the main pipe and the outlet of the graduated tube, injecting liquid into the main pipe until the liquid flows out from all the outlets of the graduated tube, closing the outlet of the graduated tube, continuously injecting liquid into the main pipe until the liquid flows out from the outlet of the main pipe, closing the outlet of the main pipe, and finally closing the liquid inlet of the main pipe.
Optionally, the method further comprises an air discharging step after injecting liquid into the main pipe and the plurality of graduated pipes, wherein the air discharging step comprises: the liquid injection device comprises a main pipe, a plurality of graduated tubes, a plurality of liquid injection holes, a.
Optionally, the step of adjusting the liquid level in the bent part to make the bent parts in the aeration tanks in the same horizontal plane is: and opening a plurality of outlets of the bent part, discharging part of the liquid in the bent part, adjusting the liquid level in the bent part in a plurality of aeration tanks to be in the same horizontal plane, and closing the plurality of outlets of the bent part.
Optionally, the graduated tube is a transparent graduated tube.
Optionally, one end of the graduated tube, which is far away from the bending part, is provided with a first exhaust valve.
Optionally, the inlet of the main pipe is provided with a liquid inlet valve, and the outlet of the main pipe is provided with a second exhaust valve.
Optionally, the disc aerator is mounted at the same level as the liquid level in the graduated tube.
The technical scheme of the invention has the following advantages:
1. the invention provides a method for mounting a disc aerator, which is characterized in that after a main pipe is fixed, a plurality of branch pipes communicated with the main pipe are respectively inserted into a plurality of aeration tanks, one ends of the branch pipes far away from the main pipe extend to the direction of the main pipe to form bent parts with openings, the main pipe and the branch pipes are equivalent to a communicating device, the liquid levels in the bent parts in the aeration tanks can be adjusted to be positioned at the same horizontal plane by adjusting the liquid levels in the bent parts, and then the adjusted liquid levels in the bent parts are taken as elevation reference points, so that the elevation reference points in each aeration tank can be ensured to be positioned at the same horizontal plane, the installation method is not easily interfered by external obstacles, and the problem that the elevation reference points of the aeration tanks in an ultra-complex environment are difficult to control is solved.
Because the branch pipe stretches into the aeration tank, the vertical distance between the elevation reference point and the disc type aerator is reduced, which is equivalent to greatly reducing the rotating point between the elevation reference point and the disc type aerator, thereby reducing the measuring error between the elevation reference point and the disc type aerator and ensuring that the mounting position of the disc type aerator in each aeration tank is more accurate. Furthermore, by measuring the vertical distance between the elevation reference point and the first disc aerator arranged at the preset position in the aeration tank, and taking the distance as the reference for the aeration tank of the remaining disc aerator to be arranged, the vertical distance between the elevation reference point in each aeration tank and the disc aerator is equal, so that the disc aerator arranged in each aeration tank is positioned at the same horizontal plane, the relative error of the installation positions of the disc aerators in different aeration tanks can be reduced to the maximum extent, the control precision of the relative elevation is improved, the sewage treatment effect of the aeration tank is improved, and the disc aerators arranged in a plurality of aeration tanks by the method do not need to be repeatedly measured and converted by the distance and the adjustment of the installation positions of the disc aerators, thereby greatly reducing the workload, improving the installation efficiency of the disc aerators and saving the construction period, and the cost is saved.
2. The disc aerator is generally arranged at the bottom of the aeration tank, and the bent part is arranged close to the bottom of the aeration tank, so that the vertical distance between the elevation reference point and the disc aerator is further reduced, the measurement of the vertical distance between the elevation reference point and the disc aerator is not interfered by obstacles, the measurement error between the elevation reference point and the disc aerator is reduced, and the mounting position of the disc aerator in each aeration tank is more accurate.
3. According to the mounting method of the disc aerator, the scale pipe is connected to one end, close to the main pipe, of the bent part, and the scale pipe is communicated with the main pipe through the branch pipe, so that scales of liquid levels in the scale pipes in the aeration tanks can be clearly seen, and the liquid levels in the scale pipes in the aeration tanks can be visually determined to be located on the same horizontal plane.
4. The mounting method of the disc aerator provided by the invention has the advantages that after the main pipe and the plurality of graduated pipes are filled with liquid, the exhaust step is carried out to ensure that the main pipe and the plurality of graduated pipes are filled with liquid, and the liquid level in the graduated pipes in each aeration tank cannot be positioned on the same horizontal plane because the liquid level in the graduated pipes is adjusted due to the gas in the main pipe and the graduated pipes.
5. The invention provides a method for mounting a disc aerator, which can omit the measurement of the vertical distance between the liquid level in a graduated tube and the disc aerator when the disc aerator is mounted at the position which is at the same horizontal plane with the liquid level in the graduated tube, completely avoid the influence of obstacles in an aeration tank, further reduce the relative error of the mounting position of the disc aerator in each aeration tank, ensure that the disc aerator in each aeration tank is at the same horizontal plane basically, ensure that the aeration quantity in each aeration tank is basically consistent and improve the sewage treatment effect of the aeration tank.
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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a branch pipe extending into an aeration tank according to an embodiment of the present invention;
fig. 2 is a schematic view of the manifold of fig. 1.
Description of reference numerals:
1. a main pipe; 2. a branch pipe; 21. a bending section; 3. a graduated tube; 4. an aeration tank; 5. a disc aerator; 6. a first exhaust valve; 7. a liquid inlet valve; 8. a second exhaust valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
One embodiment of the method of installing the disc aerator 5 shown in fig. 1-2 comprises the steps of: after a main pipe 1 is fixed, a plurality of branch pipes 2 communicated with the main pipe 1 extend into a plurality of aeration tanks 4 respectively, and one ends of the branch pipes 2 far away from the main pipe 1 extend towards the main pipe 1 to form bending parts 21 with openings; injecting liquid into the main pipe 1 and the branch pipes 2, and adjusting the liquid level in the bent parts 21 to enable the liquid levels in the bent parts 21 in the aeration tanks 4 to be positioned on the same horizontal plane; the vertical distance from the elevation reference point to the first disk aerator 5 installed at a preset position in the aeration tank 4 is measured by using the liquid level in the adjusted bent part 21 as an elevation reference point, and the disk aerators 5 in the remaining aeration tanks 4 are sequentially installed at the vertical distance, so that the vertical distance from the elevation reference point in each aeration tank 4 to the disk aerators 5 is equal.
The installation method of the disc aerator 5 comprises the steps that after the main pipe 1 is fixed, a plurality of branch pipes 2 communicated with the main pipe 1 are respectively inserted into a plurality of aeration tanks 4, one ends, far away from the main pipe 1, of the branch pipes 2 extend towards the main pipe 1 to form the bent parts 21 with openings, the main pipe 1 and the branch pipes 2 are equivalent to one communicating device, liquid levels in the bent parts 21 in the aeration tanks 4 can be adjusted to be located on the same horizontal plane by adjusting the liquid levels in the bent parts 21, then the adjusted liquid levels in the bent parts 21 serve as elevation datum points, the elevation datum points in each aeration tank 4 can be guaranteed to be located on the same horizontal plane by the arrangement, the disc aerator is not easily interfered by external obstacles, and the problem that the elevation datum points of the aeration tanks 4 in an ultra-complex environment are difficult to control is solved.
Because branch pipe 2 stretches into aeration tank 4, has reduced the vertical distance between elevation benchmark to disc aerator 5, has equivalently very big reduction elevation benchmark to the commentaries on classics point between disc aerator 5 to reduce the measuring error between elevation benchmark to disc aerator 5, make the disc aerator 5 mounted position in each aeration tank 4 more accurate. Furthermore, the vertical distance between the elevation reference point and the first disc aerator 5 arranged at the preset position in the aeration tank 4 is measured, and the aeration tank 4 with the disc aerator 5 to be arranged is used as the reference by taking the distance as the reference, so that the vertical distance between the elevation reference point in each aeration tank 4 and the disc aerator 5 is equal, the disc aerator 5 arranged in each aeration tank 4 is positioned at the same horizontal plane, the relative error of the arrangement position of the disc aerator 5 in different aeration tanks 4 can be reduced to the maximum extent, the relative elevation control precision is improved, the sewage treatment effect of the aeration tank 4 is improved, and the disc aerators 5 arranged in a plurality of aeration tanks 4 by the method do not need to be repeatedly measured and converted for a plurality of times and the adjustment of the arrangement position of the disc aerator 5, thereby greatly reducing the workload and improving the arrangement efficiency of the disc aerator 5, thereby saving the construction period and saving the cost.
It can be understood that, the opening of the bending portion 21 is spaced from the bottom end of the bending portion 21 by a certain distance, so that the bending portion 21 on the side with the opening has a space for accommodating liquid in the vertical direction, and when the liquid level in the bending portion 21 is adjusted to be at the same level, the liquid level of the bending portion 21 on the side with the opening is not lower than the bottom end of the bending portion 21.
The material of the main pipe 1 and the branch pipe 2 is not particularly limited, for example, the main pipe 1 can be a used waste pipe, as long as the liquid in the pipe can be ensured to smoothly circulate, the liquid level adjustment in the branch pipe 2 is not influenced by the conditions such as liquid leakage and the like, and the method for installing the disc aerator 5 by using the waste pipe is equivalent to waste utilization, saves resources and can reduce the treatment cost of sewage.
The connection mode of the main pipe 1 and the branch pipe 2 is not limited, and the main pipe 1 and the branch pipe 2 can be communicated. For example, the main pipe 1 and the branch pipe 2 may be connected by a tee. The liquid injected into the main pipe 1 and the branch pipe 2 is not limited. For example, the liquid may be water.
Specifically, the bent portion 21 is disposed near the bottom of the aeration tank 4. Because the disc-type aerator 5 is generally arranged at the bottom of the aeration tank 4, the bent part 21 is arranged close to the bottom of the aeration tank 4, namely, the vertical distance between the elevation reference point and the disc-type aerator 5 is further reduced, so that the measurement of the vertical distance between the elevation reference point and the disc-type aerator 5 is not interfered by obstacles, the measurement error between the elevation reference point and the disc-type aerator 5 is reduced, and the mounting position of the disc-type aerator 5 in each aeration tank 4 is more accurate.
The one end that kink 21 is close to be responsible for 1 is connected with scale tube 3, scale tube 3 pass through branch pipe 2 with be responsible for 1 intercommunication to fill with liquid. Therefore, scales of the liquid levels in the graduated tubes 3 in the aeration tanks 4 can be clearly seen, and the liquid levels in the graduated tubes 3 in the aeration tanks 4 can be visually determined to be positioned on the same horizontal plane.
The scale tube 3 is not limited as long as the liquid level scale in the scale tube 3 can be seen. For example, the graduated tube 3 is a transparent graduated tube 3.
The method for injecting liquid into the main pipe 1 and the plurality of scale tubes 3 comprises the following steps: the method comprises the steps of opening an inlet of a main pipe, an outlet of the main pipe and an outlet of a graduated tube, injecting liquid into the main pipe 1 to enable the liquid to flow out of all the outlets of the graduated tube, then closing the outlet of the graduated tube, continuing injecting liquid into the main pipe 1 to enable the liquid to flow out of the outlet of the main pipe, then closing the outlet of the main pipe, and finally closing a liquid inlet of the main pipe. It can be understood that, since the graduated tube 3 is connected to one end of the bent portion 21 close to the main tube 1, and the graduated tube 3 is communicated with the main tube 1 through the branch tube 2, the method for injecting the liquid into the main tube 1 and the plurality of the graduated tubes 3 is the method for injecting the liquid into the main tube 1, the plurality of the branch tubes 2 and the plurality of the graduated tubes 3.
The implementation of how to open and close the inlet of the main tube, the outlet of the main tube and the outlet of the graduated tube is not limited. For example, a first exhaust valve 6 may be disposed at an end of the graduated tube 3 away from the bent portion 21. The import of being responsible for is provided with feed liquor valve 7, the export of being responsible for is provided with second discharge valve 8.
The method for attaching the disc aerator 5 further includes a step of exhausting gas after injecting liquid into the main pipe 1 and the plurality of scale tubes 3, the step of exhausting gas including: be responsible for 1 and many it stews extremely to fill in behind the liquid in the graduated tube 3 be responsible for 1 and the bubble in the graduated tube 3 collects, opens again the import of being responsible for, the export of being responsible for and the export of graduated tube, to annotate liquid to liquid from all in being responsible for 1 close after the export of graduated tube flows the export of graduated tube, continue to annotate liquid to liquid follow in being responsible for 1 the export of being responsible for is closed after flowing, closes at last the inlet of being responsible for.
After the main pipe 1 and the plurality of graduated tubes 3 are filled with liquid, the exhaust step is performed to ensure that the main pipe 1 and the plurality of graduated tubes 3 are filled with liquid, so that the liquid level in the graduated tubes 3 in each aeration tank 4 cannot be positioned at the same horizontal plane due to the influence of gas in the main pipe 1 and the graduated tubes 3 on the liquid level adjustment in the graduated tubes 3.
The step of adjusting the liquid level in the bent portions 21 to make the bent portions 21 in the aeration tanks 4 be in the same horizontal plane comprises: and opening the outlets of the plurality of bent parts, discharging part of the liquid in the bent parts 21, adjusting the liquid levels in the bent parts 21 in the aeration tanks 4 to be in the same horizontal plane, and closing the outlets of the plurality of bent parts. Since the disc aerator 5 is installed before sewage is injected into the aeration tank 4, the liquid level of the bent portion 21 can be adjusted directly by visual observation.
In a preferred embodiment, the disc aerator 5 is installed at a position on the same horizontal plane as the liquid level in the graduated tube 3. Therefore, the step of measuring the vertical distance between the liquid level in the graduated tube 3 and the disc-type aerator 5 can be omitted, the influence of obstacles in the aeration tank 4 is completely avoided, the relative error of the installation position of the disc-type aerator 5 in each aeration tank 4 is further reduced, and the disc-type aerator 5 in each aeration tank 4 is basically positioned on the same horizontal plane, so that the aeration amount in each aeration tank 4 is basically consistent, and the sewage treatment effect of the aeration tank 4 is improved.
The steps of the installation method of the disc aerator 5 are as follows:
the method comprises the steps of connecting a plurality of branch pipes 2 to a main pipe 1, connecting a scale pipe 3 at one end, close to the main pipe 1, of a bent part 21 of each branch pipe 2, installing a first exhaust valve 6 at one end, far away from the bent part 21, of the scale pipe 3, installing a liquid inlet valve 7 at an inlet of the main pipe, installing a second exhaust valve 8 at an outlet of the main pipe, fixing the main pipe 1 above each aeration tank 4, and enabling the branch pipes 2 to extend into each aeration tank 4 respectively.
The inlet of the main pipe, the outlet of the main pipe and the outlets of the graduated pipes are opened, the first exhaust valve 6 is closed after water is injected into the main pipe 1 until the water flows out from the outlets of all the graduated pipes, the second exhaust valve 8 is closed after the water is continuously injected into the main pipe 1 until the water flows out from the outlet of the main pipe, and then the liquid inlet valve 7 is closed. Standing for a period of time until the bubbles in the main pipe 1 and the graduated tube 3 are converged, opening the inlet of the main pipe, the outlet of the main pipe and the outlet of the graduated tube again, injecting water into the main pipe 1 until the water flows out from the outlets of all the graduated tubes, closing the first exhaust valve 6, continuing injecting water into the main pipe 1 until the water flows out from the outlet of the main pipe, closing the second exhaust valve 8, and then closing the liquid inlet valve 7. And sequentially opening the first exhaust valves 6 on the graduated pipes 3 to discharge part of water in the graduated pipes 3, and closing the first exhaust valves 6 on all the graduated pipes 3 when the water levels in the graduated pipes 3 in the aeration tanks 4 are regulated to the same horizontal level.
And taking the water level in the adjusted graduated tube 3 as an elevation reference point, measuring the vertical distance from the elevation reference point in the first aeration tank 4 to the preset installation position of the first disc-type aerator 5, and then taking the vertical distance as a reference, and installing the disc-type aerators 5 in the rest aeration tanks 4 at the vertical distances below the corresponding elevation reference points, so that the disc-type aerators 5 installed in each aeration tank 4 can be positioned on the same horizontal plane.
After 72944 sets of disc-type aerators 5 in all biological tanks of the regeneration water plant of the locust chamber are installed by the method, the results of retest by measurement show that the relative error of all disc-type aerators 5 is not more than 3mm, and the requirement that the relative error of the design requirement is not more than 5mm is met.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A method for installing a disc aerator is characterized by comprising the following steps:
after a main pipe (1) is fixed, a plurality of branch pipes (2) communicated with the main pipe (1) are respectively extended into a plurality of aeration tanks (4), and one ends of the branch pipes (2) far away from the main pipe (1) extend towards the main pipe (1) to form bending parts (21) with openings;
injecting liquid into the main pipe (1) and the branch pipes (2), and adjusting the liquid level in the bent parts (21) to enable the liquid levels in the bent parts (21) in the aeration tanks (4) to be positioned on the same horizontal plane;
and taking the liquid level in the adjusted bent part (21) as an elevation reference point, measuring the vertical distance from the elevation reference point to the first disc aerator (5) arranged at a preset position in the aeration tank (4), and sequentially arranging the disc aerators (5) in the rest aeration tanks (4) according to the vertical distance so as to ensure that the vertical distance from the elevation reference point in each aeration tank (4) to the disc aerators (5) is equal.
2. The method of mounting a disc aerator according to claim 1, wherein the bent portion (21) is provided near the bottom of the aeration tank (4).
3. The method of mounting a disc aerator according to claim 1, characterised in that a graduated tube (3) is connected to the end of the bent part (21) close to the main pipe (1), the graduated tube (3) being in communication with the main pipe (1) through the branch pipe (2) and being filled with liquid.
4. A method of installing a disc aerator according to claim 3, wherein the method of injecting the liquid into the main pipe (1) and the plurality of scale pipes (3) is: open the import of being responsible for, the export of being responsible for and the export of graduated flask, to be responsible for (1) interior notes liquid to liquid from all close after the export of graduated flask flows the export of graduated flask, continue to be responsible for (1) interior notes liquid to liquid follow close after the export of being responsible for flows the export of being responsible for, close at last the inlet of being responsible for.
5. The method of installing a disc aerator according to claim 4, further comprising a step of exhausting after injecting the liquid into the main pipe (1) and the plurality of scale pipes (3), wherein the step of exhausting comprises: be responsible for (1) and many it stews extremely to fill in behind the liquid in graduated tube (3) be responsible for (1) and bubble in graduated tube (3) collects, reopen the import of being responsible for, the export of being responsible for and the export of graduated tube, to be responsible for (1) interior notes liquid to liquid from all close after the export of graduated tube flows the export of graduated tube, continue to be responsible for (1) interior notes liquid to liquid follow close after the export of being responsible for flows the export of being responsible for, close at last the inlet of being responsible for.
6. The method of mounting a disc aerator according to claim 1, wherein the step of adjusting the liquid level in the bent portions (21) so that the bent portions (21) in a plurality of aeration tanks (4) are at the same level is: and opening the outlets of the plurality of bent parts (21), discharging part of the liquid in the bent parts (21), adjusting the liquid levels in the bent parts (21) in the plurality of aeration tanks (4) to be in the same horizontal plane, and closing the outlets of the plurality of bent parts.
7. A method of mounting a disc aerator according to claim 3, characterised in that the graduated tube (3) is a transparent graduated tube.
8. A method of mounting a disc aerator according to claim 3, characterised in that the end of the graduated tube (3) remote from the bend (21) is provided with a first exhaust valve (6).
9. Method for mounting a disc aerator according to claim 1, characterised in that the inlet of the main pipe is provided with a liquid inlet valve (7) and the outlet of the main pipe is provided with a second air outlet valve (8).
10. A method of mounting a disc aerator according to claim 3, characterised in that the disc aerator (5) is mounted in a position at the same level as the liquid level in the graduated tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2005224677A (en) * | 2004-02-12 | 2005-08-25 | Yokogawa Electric Corp | Apparatus for feeding oxygen into water |
| CN101497473A (en) * | 2009-03-20 | 2009-08-05 | 上海大祺环保工程有限公司 | Aeration type photobioreactor and method of use thereof |
| CN203256046U (en) * | 2013-05-24 | 2013-10-30 | 王骞 | Detachable type aeration device |
| CN206126941U (en) * | 2016-10-25 | 2017-04-26 | 中国电建集团中南勘测设计研究院有限公司 | Auxiliary device is established in tiling of aeration pipe network water |
| CN208026251U (en) * | 2018-03-29 | 2018-10-30 | 罗晓苑 | Simple spirit level |
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|---|---|---|---|---|
| JP2005224677A (en) * | 2004-02-12 | 2005-08-25 | Yokogawa Electric Corp | Apparatus for feeding oxygen into water |
| CN101497473A (en) * | 2009-03-20 | 2009-08-05 | 上海大祺环保工程有限公司 | Aeration type photobioreactor and method of use thereof |
| CN203256046U (en) * | 2013-05-24 | 2013-10-30 | 王骞 | Detachable type aeration device |
| CN206126941U (en) * | 2016-10-25 | 2017-04-26 | 中国电建集团中南勘测设计研究院有限公司 | Auxiliary device is established in tiling of aeration pipe network water |
| CN208026251U (en) * | 2018-03-29 | 2018-10-30 | 罗晓苑 | Simple spirit level |
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