CN218174745U - Accurate aeration systems of sewage treatment - Google Patents
Accurate aeration systems of sewage treatment Download PDFInfo
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- CN218174745U CN218174745U CN202222300903.4U CN202222300903U CN218174745U CN 218174745 U CN218174745 U CN 218174745U CN 202222300903 U CN202222300903 U CN 202222300903U CN 218174745 U CN218174745 U CN 218174745U
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- aeration
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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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Abstract
The utility model discloses an accurate aeration system for sewage treatment, which comprises an aeration tank, an aeration component arranged at the bottom of the aeration tank, an air inlet component communicated with the aeration component, a stirring device arranged on the aeration tank, a dissolved oxygen sensor arranged in the aeration tank, an aeration controller in signal connection with the dissolved oxygen sensor, an ammonia nitrogen detector, an inlet water flow meter and a COD detector in signal connection with the aeration controller; the air inlet component comprises an air mixing box communicated with the aeration component, and an air inlet device and an oxygen inlet device communicated with the air mixing box; the aeration component comprises a first aeration air duct and a second aeration air duct which are communicated with the air mixing box and are arranged in parallel, the other end of the first aeration air duct is connected with a plurality of first aeration branch pipes, the other end of the second aeration air duct is connected with a plurality of second aeration branch pipes, and the first aeration branch pipes and the second aeration branch pipes are uniformly distributed and staggered; the sewage treatment accurate aeration system of the utility model realizes aeration according to needs and can ensure that the aeration is even.
Description
Technical Field
The utility model belongs to the sewage treatment field, more specifically say and relate to an accurate aeration systems of sewage treatment.
Background
With the development of economy and the popularization of industrial production, a large amount of industrial sewage is generated, and sewage treatment becomes a big matter related to livelihood and environment. At present, an activated sludge method is generally adopted for sewage treatment, which mainly promotes the growth of microorganisms through aeration and degrades pollutants such as organic matters, nitrogen, phosphorus and the like in a water body by utilizing the microorganisms. Aeration is a key link in the whole sewage treatment process. In the prior art, the aeration process does not have a good and accurate control method and process, aeration is generally carried out according to experience, and each index in the sewage is detected after aeration, so that the problems of excessive aeration or insufficient aeration occur. Excessive aeration can cause energy consumption waste and carbon source waste; and if the aeration is insufficient, the pollutants are slowly degraded, and the effluent exceeds the standard. It can be seen that excessive aeration or insufficient aeration can bring great influence on sewage treatment, so that the sewage treatment has problems of high cost or slow treatment, and the sewage treatment efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an accurate aeration system of sewage treatment realizes aeration as required, and can ensure that the aeration is even.
The utility model relates to a sewage treatment accurate aeration system, which comprises an aeration tank, an aeration component arranged at the bottom of the aeration tank, an air inlet component communicated with the aeration component, a stirring device arranged on the aeration tank, a dissolved oxygen sensor arranged in the aeration tank, an aeration controller in signal connection with the dissolved oxygen sensor, and an ammonia nitrogen detector, an inlet water flow meter and a COD detector in signal connection with the aeration controller;
the air inlet assembly comprises an air mixing box communicated with the aeration assembly, and an air inlet device and an oxygen inlet device communicated with the air mixing box; the aeration component comprises a first aeration air guide pipe and a second aeration air guide pipe which are communicated with the air mixing box and are arranged, the other end of the first aeration air guide pipe is connected with a plurality of first aeration branch pipes, the other end of the second aeration air guide pipe is connected with a plurality of second aeration branch pipes, and the first aeration branch pipes and the second aeration branch pipes are uniformly distributed and arranged in a staggered mode.
Preferably, the air inlet device comprises an air blower, the oxygen inlet device comprises an oxygen blower and a nitrogen-oxygen separator connected with the inlet of the oxygen blower, and the air blower and the oxygen blower are controlled by the aeration controller.
Preferably, the first aeration air duct and the second aeration air duct are respectively provided with a first electromagnetic valve and a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are controlled by the aeration controller.
Preferably, the cross sections of the first branch aeration pipe and the second branch aeration pipe are rectangular, aeration grooves are arranged on the top surfaces of the first branch aeration pipe and the second branch aeration pipe, the sizes of the aeration grooves are gradually increased from the air inlet end to the other end, and the distance between every two adjacent aeration grooves is gradually decreased from the air inlet end to the other end.
Preferably, the dissolved oxygen sensors are uniformly distributed and arranged at positions close to the bottom of the aeration tank and the deep middle position of the aeration tank respectively.
Preferably, be connected with the sampling house steward on the ammonia nitrogen detector, be connected with the sample branch pipe on the sampling house steward, the sample branch pipe is including and establishing and a plurality of independent control, and the other end equipartition of a plurality of sample branch pipes sets up in the aeration tank, and sets up respectively and is being close to aeration tank bottom of the pool and aeration tank deep neutral position.
Preferably, the aeration tank is further connected with a stirring device, the stirring device comprises a circulating pump, and a water inlet and a water outlet of the circulating pump are both communicated with the aeration tank.
The utility model discloses technical scheme's accurate aeration systems of sewage treatment's beneficial effect is:
1. the aeration quantity is controlled and the aeration is ensured to be uniform through the first aeration branch pipes and the second aeration branch pipes which are uniformly distributed and staggered.
2. Through setting up oxygen air inlet unit, realize blowing oxygen in to the aeration tank, improvement oxygen content in the aeration tank that can be quick.
Drawings
FIG. 1 is a schematic structural view of an accurate aeration system for sewage treatment according to the technical scheme of the utility model.
FIG. 2 is a schematic view of the first aeration branch pipe or the second aeration branch pipe according to the technical solution of the present invention.
Fig. 3 is the schematic diagram of the structure of the wind mixing box in the technical scheme of the present invention.
Detailed Description
In order to facilitate the technical solutions of the present invention to be understood by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings.
As shown in figure 1, the utility model provides an accurate aeration system of sewage treatment, including aeration tank 1, set up at the aeration subassembly of aeration tank 1 bottom of the pool, with the air intake assembly of aeration subassembly intercommunication, set up agitating unit 8 on the aeration tank, set up dissolved oxygen sensor 3 in aeration tank 1, with dissolved oxygen sensor 3 signal connection's aeration controller 5 and with aeration controller 5 signal connection's ammonia nitrogen detector 4, water inlet flow meter 6 and COD detector 7.
The air intake assembly comprises a wind mixing box 21 communicated with the aeration assembly, and an air intake device 26 and an oxygen intake device 27 communicated with the wind mixing box 21. The aeration component comprises a first aeration air duct 22 and a second aeration air duct 23 which are communicated with the air mixing box 21 and are arranged in parallel. The other end of the first aeration air duct 22 is connected with a plurality of first aeration branch pipes 24, and the other end of the second aeration air duct 23 is connected with a plurality of second aeration branch pipes 25. The first and second branch aeration pipes 24 and 25 are uniformly distributed and staggered.
Based on the technical scheme, the dissolved oxygen sensor 3 detects the oxygen content in the sewage in the aeration tank and transmits a signal to the aeration controller, the ammonia nitrogen detector measures the ammonia nitrogen concentration in the sewage in the aeration tank and transmits the ammonia nitrogen concentration value to the aeration controller, and the water inlet flow meter 6 and the COD detector 7 respectively obtain the water inlet flow value of the sewage on the aeration tank and the chemical oxygen demand content in the sewage entering the aeration tank and transmit the signal to the aeration controller. The aeration controller 5 compares the signals and the content with set values, judges whether aeration is needed to be carried out in the aeration tank or aeration quantity is increased or decreased, and then controls the air inlet assembly to work.
The aeration controller in the technical scheme can be any one of controllers which can realize the functions required in the technical scheme in the prior art, the control process and the control principle are both in the prior art, the improvement on software and a software algorithm or a control method is not involved in the application, and only the conventional controller in the prior art is utilized to realize the conventional control in the technology.
The aeration controller is provided with a data acquisition module, a data processing module, a data storage module and an instruction implementation output module. The data acquisition module acquires signals and values transmitted by detection equipment or structures such as a dissolved oxygen sensor, a water inflow flowmeter, an ammonia nitrogen detector, a COD detector and the like, and then the data processing module compares the signals or values which are just acquired with standard values and set values stored in the data storage module or acquired values transmitted by the data acquisition module in the last period of time to judge whether aeration is needed or increase and decrease of aeration quantity. And finally, the output module is implemented through an instruction to control the working of the air inlet assembly or change the working state, so that the aeration of the aeration tank or the increase and decrease of the aeration amount are realized.
Based on the above technical scheme, as shown in fig. 1, the aeration assembly comprises a first aeration air duct 22 and a second aeration air duct 23 which are communicated with the air mixing box 21 and are arranged, and a first aeration branch pipe 24 and a second aeration branch pipe 25 which are respectively communicated with the first aeration air duct 22 and the second aeration air duct 23 are uniformly distributed and staggered, so that the control of aeration amount is realized, and the uniform aeration is ensured. When the aeration amount needs to be increased or normal aeration is required, the first and second branch aeration pipes 24 and 25 perform aeration work. When the aeration amount is required to be reduced, only the first branch aeration pipes 24 or the second branch aeration pipes 25 are selected for aeration operation, and the first branch aeration pipes 24 and the second branch aeration pipes 25 are uniformly distributed and staggered, so that even aeration can be ensured even though the aeration amount is reduced, and local aeration operation in the aeration tank is avoided when the aeration amount is reduced.
Based on the technical scheme, as shown in fig. 1, the air intake assembly comprises an air mixing box 21 communicated with the aeration assembly, and an air intake device 26 and an oxygen intake device 27 communicated with the air mixing box 21. Compared with the prior art, the aeration is carried out only by blowing air, and the oxygen inlet device is added, namely, a certain amount of oxygen is blown into the aeration tank through the oxygen inlet device, namely, the oxygen content in the blown gas is increased, so that the dissolved oxygen in the sewage is increased.
In the present embodiment, the air intake device 26 includes an air blower, and the oxygen intake device 27 includes an oxygen blower 271 and a nitrogen-oxygen separator 272 connected to the oxygen blower 271. The air blower and the oxygen blower are controlled by an aeration controller. The nitrogen-oxygen separator 272 has a conventional structure, and generally includes a nitrogen-oxygen separation membrane disposed in a tank, the nitrogen-oxygen separation membrane can pass through a large amount of oxygen and a small amount of nitrogen, the remaining nitrogen is directly discharged, and the passing nitrogen and nitrogen pass through an oxygen blower 271 to aerate the aeration tank. Thus, oxygen is blown into the aeration tank through the oxygen gas inlet means 27, and the oxygen gas blast 271 and the gas fed from the air blower are mixed by the air mixing box 21 and aerated into the aeration tank by the aeration means.
In the technical scheme, the oxygen blowing 271 works, negative pressure is formed on the oxygen outlet side of the nitrogen-oxygen separator 272, the speed of oxygen passing through the nitrogen-oxygen separation membrane is increased, and the content of oxygen blown into the aeration tank is ensured.
Based on the technical scheme, whether oxygen aeration is added into the aeration tank or not is controlled by controlling the on-off of the oxygen blower 271, namely, the content of oxygen in gas conveyed into the aeration tank is controlled, and the higher the oxygen content is, the more the amount of oxygen dissolved in sewage is synchronously increased.
In the present embodiment, as shown in fig. 3, the air mixing box 21 includes a box body 211, an air inlet 213 and an air outlet 212 disposed on the box body 211, and two partitions 214 disposed in the box body in a staggered manner. The air inlet 213 and the air outlet 212 are respectively disposed on the sides of the case 211 at both sides of the partition 214 to facilitate uniform mixing of oxygen and air.
In the technical scheme, the first aeration air duct 22 and the second aeration air duct 23 are respectively provided with a first electromagnetic valve and a second electromagnetic valve, and the first electromagnetic valve and the second electromagnetic valve are controlled by an aeration controller. The aeration controller respectively controls the on-off of the first electromagnetic valve and the second electromagnetic valve, namely, the on-off of the first aeration air duct 22 and the second aeration air duct 23 are controlled, namely, the control of the aeration quantity in the aeration tank is realized.
In the technical scheme, as shown in fig. 2, the cross sections of the first and second aeration branch pipes are rectangular, and the top surface of the first and second aeration branch pipes is provided with an aeration tank 241, the size of the aeration tank 241 is gradually increased from the air inlet end to the other end, and the distance between the adjacent aeration tanks is gradually decreased from the air inlet end to the other end. The setting of aeration tank has ensured the intensity of aeration branch pipe self on the one hand, avoids it to appear warping the scheduling problem, and on the other hand aeration tank's setting for it is big to pass through the tolerance, and gas-liquid separation is good. The size of the aeration tank 241 is gradually increased from the air inlet end to the other end, the distance between the adjacent aeration tanks is gradually reduced from the air inlet end to the other end, and the aeration at each position in the aeration tank is further ensured to be uniform.
Among this technical scheme, 3 equipartitions of dissolved oxygen sensor are provided with a plurality of, and set up respectively and be close to aeration tank bottom of the pool and the deep neutral position in aeration tank pond, realize the detection to a plurality of different positions and the oxygen content of height in the aeration tank, can master each position oxygen content in the aeration tank, under the condition that local content is big appears, can stir sewage in the aeration tank through agitating unit 8 realization, ensure that oxygen content is unanimous in each position sewage in the aeration tank.
Among this technical scheme, be connected with the sampling header pipe on the ammonia nitrogen detector 4, the last sampling branch pipe 41 that is connected with of sampling header pipe, sampling branch pipe 41 is including and establish and a plurality of independent control, and the other end of a plurality of sampling branch pipes equipartition sets up in the aeration tank, and sets up respectively and is being close to aeration tank bottom of the pool and aeration tank deep neutral position. Sampling branch 41 samples the sewage of a plurality of different positions in the aeration tank to detect ammonia nitrogen content in the sewage through ammonia nitrogen detector 4, can master each position ammonia nitrogen content in the aeration tank, under the condition that local content is big appears, can stir sewage in the aeration tank through agitating unit 8 realization, ensure that each position sewage in the aeration tank ammonia nitrogen content is unanimous.
In the technical scheme, the aeration tank 1 is also connected with a stirring device 8, the stirring device comprises a circulating pump, and a water inlet and a water outlet of the circulating pump are communicated with the aeration tank. Through the work of the circulating pump, the sewage in the aeration tank is pumped out and immediately enters the aeration tank, so that the sewage in the aeration tank flows, the sewage stirring is realized, the operation is simple, and the cost is low.
Technical solution of the invention is described above with reference to the accompanying drawings by way of example, and it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and technical solution, or to apply the inventive concept and technical solution to other situations without any modification.
Claims (7)
1. An accurate aeration system for sewage treatment is characterized by comprising an aeration tank, an aeration component arranged at the bottom of the aeration tank, an air inlet component communicated with the aeration component, a stirring device arranged on the aeration tank, a dissolved oxygen sensor arranged in the aeration tank, an aeration controller in signal connection with the dissolved oxygen sensor, an ammonia nitrogen detector, an inlet water flow meter and a COD detector in signal connection with the aeration controller;
the air inlet assembly comprises an air mixing box communicated with the aeration assembly, and an air inlet device and an oxygen inlet device communicated with the air mixing box; the aeration component comprises a first aeration air guide pipe and a second aeration air guide pipe which are communicated with the air mixing box and are arranged, the other end of the first aeration air guide pipe is connected with a plurality of first aeration branch pipes, the other end of the second aeration air guide pipe is connected with a plurality of second aeration branch pipes, and the first aeration branch pipes and the second aeration branch pipes are uniformly distributed and arranged in a staggered mode.
2. The sewage treatment precision aeration system of claim 1, wherein the air intake device comprises an air blower, the oxygen intake device comprises an oxygen blower and a nitrogen-oxygen separator connected to the inlet of the oxygen blower, and the air blower and the oxygen blower are controlled by the aeration controller.
3. The accurate aeration system for sewage treatment according to claim 1, wherein the first and second aeration air-guide tubes are respectively provided with a first and second electromagnetic valve, and the first and second electromagnetic valves are controlled by the aeration controller.
4. The sewage treatment precise aeration system according to claim 1, wherein the first branch aeration pipe and the second branch aeration pipe are rectangular in cross section, aeration grooves are formed in the top surfaces, the sizes of the aeration grooves are gradually increased from the air inlet end to the other end, and the distances between the adjacent aeration grooves are gradually decreased from the air inlet end to the other end.
5. The sewage treatment precise aeration system according to claim 1, wherein a plurality of dissolved oxygen sensors are uniformly distributed and are respectively arranged at positions close to the bottom of the aeration tank and the deep middle position of the aeration tank.
6. The accurate aeration system of sewage treatment of claim 1, characterized in that the ammonia nitrogen detector is connected with a sampling main pipe, the sampling main pipe is connected with a sampling branch pipe, the sampling branch pipe comprises a plurality of branch pipes which are arranged and controlled independently, and the other ends of the sampling branch pipes are uniformly distributed in the aeration tank and are respectively arranged at the bottom of the aeration tank and the deep middle position of the aeration tank.
7. The sewage treatment precise aeration system according to claim 1, wherein the stirring device comprises a circulating pump, and a water inlet and a water outlet of the circulating pump are both communicated with the aeration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222300903.4U CN218174745U (en) | 2022-08-29 | 2022-08-29 | Accurate aeration systems of sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222300903.4U CN218174745U (en) | 2022-08-29 | 2022-08-29 | Accurate aeration systems of sewage treatment |
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| Publication Number | Publication Date |
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| CN218174745U true CN218174745U (en) | 2022-12-30 |
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| CN202222300903.4U Active CN218174745U (en) | 2022-08-29 | 2022-08-29 | Accurate aeration systems of sewage treatment |
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2022
- 2022-08-29 CN CN202222300903.4U patent/CN218174745U/en active Active
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