CN218755259U

CN218755259U - Nitrifying liquid reflux system

Info

Publication number: CN218755259U
Application number: CN202222782231.5U
Authority: CN
Inventors: 张雷; 王艳; 鲁鹏; 黄文涛; 杨平; 周玉芬; 张彪; 彭程; 覃卫平; 万迪
Original assignee: Beijing Bohuite Environmental Technology Co ltd
Current assignee: Beijing Bohuite Environmental Technology Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-28
Anticipated expiration: 2032-10-21

Abstract

The utility model relates to a sewage treatment device field provides a nitrify liquid return-flow system, connects between aerobic zone and anoxic zone, include: the air source is used for providing power for the backflow of the sewage; the bottom of the stripping device is communicated with the aerobic zone, the side wall of the stripping device is communicated with an air source, the top of the stripping device is provided with an air release structure for prolonging the sewage circulation channel, and the water outlet of the air release structure is communicated with the anoxic zone. The utility model provides a nitrify liquid reflux system provides the power of backward flow for sewage through the air supply, and the air supply can select to be compressed air, and is low for the backwash pump energy consumption, and stripping device's top is provided with the outgas structure that is used for prolonging sewage circulation passageway moreover, and the delivery port and the anoxic zone intercommunication of outgas structure, has solved the problem that the flow that steam stripping formula backward flow can not measure, carry peroxide in the past through the outgas structure.

Description

Nitrifying liquid reflux system

Technical Field

The utility model relates to a sewage treatment device technical field especially relates to a nitrify liquid return-flow system.

Background

The nitrifying liquid is refluxed, namely, an aerobic Chi Xiaohua liquid in the later stage of an AAO (Anaerobic-aerobic process) process is refluxed to an Anaerobic tank or an Anoxic tank in the former stage of the process through a reflux pipeline, the nitrifying liquid contains nitrate nitrogen generated by nitrifying ammonia nitrogen generated by oxidizing the ammonia nitrogen by nitrifying bacteria, and the nitrate nitrogen can be mixed with hydraulic organic matters in the Anaerobic tank or the Anoxic tank after being refluxed to the former stage, and denitrification of the nitrate nitrogen is carried out by denitrifying bacteria, so that the total nitrogen is removed.

Among the prior art, adopt solitary sewage elevator pump as the power supply of nitrifying liquid reflux system mostly, the energy consumption is higher, consequently follow-up appearance adopts compressed air as the power of nitrifying liquid backward flow, but adopts compressed air as power, appears leading to carrying the problem of peroxide again easily in the sewage.

Therefore, how to provide a nitrifying liquid reflux system with low energy consumption and no carrying of peroxygen is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nitrify liquid reflux system for solve among the prior art nitrify liquid reflux system energy consumption high or in the past the gaseous formula flow that flows back can not measure, carry the defect of peroxide, realize nitrifying the liquid backward flow.

The utility model provides a nitrify liquid reflux system connects between aerobic zone and anoxic zone, include:

the air source is used for providing power for the backflow of the sewage;

the bottom of the stripping device is communicated with the aerobic zone, the side wall of the stripping device is communicated with the air source, the top of the stripping device is provided with an air release structure for prolonging a sewage circulation channel, and the water outlet of the air release structure is communicated with the anoxic zone.

According to the utility model provides a pair of nitrify liquid reflux system still includes the controller, be provided with flowmeter and electric valve on the air supply line at air supply place, just the flowmeter with electric valve all with the controller electricity is connected.

According to the utility model provides a pair of nitrify liquid reflux system, be provided with first inlet port and second inlet port in the strip device, first inlet port with the second inlet port is located the top side and the bottom side of air supply input port respectively, just the area of first inlet port is less than the second inlet port.

According to the utility model provides a pair of nitrify liquid reflux system, first inlet port has two rows.

According to the utility model provides a pair of nitrify liquid reflux system, the structure of outgasing include the shell with set up in a plurality of gas release rings of shell inside, and adjacent form sinuous sewage flow channel between the gas release ring, just be provided with on the shell the delivery port.

According to the utility model provides a nitrifying liquid reflux system, the gas release ring comprises a first ring body, a second ring body and a third ring body which are concentrically arranged, the bottom end of the first ring body is connected with the shell, and the inner side of the first ring body is communicated with the stripping device; the second ring body is connected with the first ring body, a sewage circulation channel is arranged between the bottom end of the second ring body and the shell, and the top end of the second ring body is higher than the first ring body; the third ring body is arranged on the outer side of the second ring body, and the bottom end of the third ring body is connected with the shell; the top end of the third ring body is lower than the top ends of the second ring body and the shell.

According to the utility model provides a pair of nitrify liquid reflux system, first ring body with connect through the connecting rod between the second ring body.

According to the utility model provides a pair of nitrify liquid reflux system, the air supply is good oxygen district air feed fan.

According to the utility model provides a pair of nitrify liquid reflux system, the delivery port is square or circular.

The utility model provides a nitrify liquid reflux system provides the power of backward flow for sewage through the air supply, and the air supply can select to be compressed air, and is low for the backwash pump energy consumption, and stripping device's top is provided with the gas release structure that is used for prolonging sewage circulation passageway moreover, and the delivery port and the anoxic zone intercommunication of gas release structure, has solved the problem that the flow that in the past steam stripping formula backward flow can not measure, carry oxygen through the gas release structure.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a nitrifying liquid reflux system provided by the present invention;

fig. 2 is a schematic view of the arrangement of the first and second air inlet holes provided by the present invention;

FIG. 3 is an enlarged view of the structure of the air release structure provided by the present invention;

reference numerals:

1. an aerobic zone; 2. an anoxic zone; 3. a gas source; 4. a stripping unit; 41. a first air intake hole; 42. a second air intake hole; 5. an air release structure; 51. a housing; 511. a water outlet; 52. a gas release ring; 521. a first ring body; 522. a second ring body; 523. a third ring body; 53. a connecting rod; 6. a controller; 7. a flow meter; 8. an electrically operated valve.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of 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.

The nitrifying liquid reflux system of the present invention will be described with reference to fig. 1 to 3.

As shown in figure 1, the utility model provides a nitrify liquid reflux system connects between aerobic zone 1 and anoxic zone 2, include: the gas source 3 is used for providing power for the backflow of the sewage; the air source 3 may use compressed air. The bottom of the stripping device 4 is communicated with the aerobic zone 1, the side wall of the stripping device is communicated with the gas source 3, the top of the stripping device 4 is provided with a gas release structure 5 for prolonging a sewage circulation channel, and a water outlet 511 of the gas release structure 5 is communicated with the anoxic zone 2.

The utility model provides a nitrify liquid reflux system provides the power of backward flow for sewage through air supply 3, and air supply 3 can select for compressed air, and is low for the backwash pump energy consumption, and stripping device 4's top is provided with the outgas structure 5 that is used for prolonging sewage circulation passageway moreover, and the delivery port 511 and the anoxic zone 2 intercommunication of outgas structure 5, has solved the problem that the stripping formula backward flow carried the oxygen in the past through outgas structure 5.

Wherein, the steam stripping means that volatile toxic and harmful substances in the wastewater are diffused into a gas phase according to a certain proportion by directly contacting the wastewater with steam, thereby achieving the purpose of separating pollutants from the wastewater.

The embodiment of the utility model provides an in, still include controller 6, be provided with flowmeter 7 and electrically operated valve 8 on the air supply pipeline at air supply 3 place, and flowmeter 7 and electrically operated valve 8 all are connected with controller 6 electricity. The flow meter 7 can monitor the change of the air volume of the air supply pipeline, the controller is used for calculating the flow of the reflux liquid, the electric valve 8 is used for adjusting the air supply amount, and the set reflux amount of the nitrifying liquid can be controlled. That is to say, the flow meter 7 converts the monitored gas amount of the gas supply pipeline into an electric signal, and can feed back the electric signal to the controller 6, and the controller 6 realizes the metering conversion of the backflow liquid and the display of the backflow liquid flow rate through the feedback signal. Meanwhile, the controller 6 controls the opening of the electric valve 8 through a feedback signal to realize the control of the reflux amount.

The flow meter 7 may be any type of flow meter as long as the flow rate of the gas can be detected. The electrically operated valve 8 may be any valve, as long as it can be opened and closed or the opening degree thereof can be adjusted, and is not particularly limited herein.

It should be noted that, the controller 6 receives the electrical feedback signal of the flow meter 7 and controls the opening degree of the electrically operated valve 8, which is the prior art, the present invention does not relate to the improvement of the software program of the controller, and only applies the controller 6 receiving the electrical feedback signal of the flow meter 7 and the controller 6 being able to control the opening degree of the electrically operated valve 8 to the nitrified liquid reflux system.

In the embodiment of the present invention, as shown in fig. 2, a first air inlet 41 and a second air inlet 42 are provided in the stripping device 4, the first air inlet 41 and the second air inlet 42 are respectively located at the top side and the bottom side of the air source input port (air supply pipeline), and the area of the first air inlet 41 is smaller than that of the second air inlet 42. When the air supply amount of the air source 3 is moderate, the compressed air enters the stripping device 4 through the first air inlet 41 preferentially because the density of the compressed air in the liquid is relatively low; when the air supply quantity of the air source 3 is small or when the air supply needs to be stopped, impurities in the sewage easily block the first air inlet 41; when the air source 3 is opened again, the compressed air can enter through the second air inlet hole 42 with a relatively large area, and the impurities at the first air inlet hole 41 are flushed by the large air flow, so that the first air inlet hole 41 is unobstructed again.

In the embodiment of the present invention, the first air inlet holes 41 have two rows, and the two rows of the first air inlet holes 41 are beneficial for the compressed air to enter the stripping device 4.

In an embodiment of the present invention, the air releasing structure 5 includes a housing 51 and a plurality of air releasing rings 52 disposed inside the housing 51, and a winding sewage flow channel is formed between adjacent air releasing rings 52, and a water outlet 511 is disposed on the housing 51. The air release structure 5 is used for prolonging the sewage circulation channel to dissipate the air as much as possible, and the water outlet 511 is communicated with the anoxic zone 2.

In the embodiment of the present invention, as shown in fig. 3, the air release ring 52 includes a first ring 521, a second ring 522 and a third ring 523, which are concentrically arranged, the bottom end of the first ring 521 is connected with the casing 51, and the inner side of the first ring 521 is communicated with the stripping device 4; the second ring body 522 is connected with the first ring body 521, a sewage flow passage is arranged between the bottom end of the second ring body 522 and the shell 51, and the top end is higher than the first ring body 521; the third ring body 523 is disposed outside the second ring body 522, and a bottom end of the third ring body 523 is connected to the housing 51; the top end of the third ring 523 is lower than the top ends of the second ring 522 and the housing 51. Through the arrangement of the first ring 521, the second ring 522 and the third ring 523, a winding sewage flow passage is formed, that is, sewage flows from the inner side of the first ring 521 to between the first ring 521 and the second ring 522 through the top side of the first ring 521, then flows from the bottom end of the second ring 522 to between the second ring 522 and the third ring 523, then flows from the top end of the third ring 523 to between the third ring 523 and the outer shell 51, and finally flows out from the water outlet 511 on the outer shell 51.

In the embodiment of the present invention, the first ring member 521 and the second ring member 522 are connected by the connecting rod 53 to ensure the firm connection between the first ring member 521 and the second ring member 522, so as to form a winding sewage flow passage.

In one embodiment of the utility model, the air source 3 can be an air supply fan for the aerobic zone, and a new fan does not need to be installed, thus saving the cost; of course, the gas source 3 may be other forms of gas sources.

In the embodiment of the present invention, the shape of the water outlet 511 is not limited at all, and the water outlet 511 may be square or circular.

The utility model provides a nitrifying liquid reflux system's working process does, provides compressed air through air supply 3, and compressed air gets into stripping device 4 along the air supply line to get into stripping device 4 through first inlet port 41, rises to gas release structure 5 with sewage, and sewage flows to between first ring body 521 and second ring body 522 from the inboard of first ring body 521; then flows between the second ring body 522 and the third ring body 523 from the bottom end of the second ring body 522, finally flows between the third ring body 523 and the shell 51 from the top of the third ring body 523, thereby prolonging the circulation of sewage, and realizing baffling, energy dissipation and air release through the above meandering sewage circulation channel; solves the problem that the flow of the prior stripping type backflow carries the peroxygen.

Meanwhile, the setting of the controller 6, the flowmeter 7 and the electric valve 8 can also realize the monitoring of the gas flow of the gas supply pipeline, the controller is used for checking the flow of the reflux liquid, the electric valve is used for realizing the regulation of the gas supply amount, and the set reflux amount of the nitrifying liquid can be controlled.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a manner," "a particular manner," or "some manner" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or manner is included in at least one embodiment or manner of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or mode. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or modes. Furthermore, various embodiments or modes described in this specification, as well as features of various embodiments or modes, may be combined and combined by those skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nitrifying liquid reflux system, which is connected between an aerobic zone and an anoxic zone, comprises:

the air source is used for providing power for the backflow of the sewage;

2. The nitrifying liquid reflux system according to claim 1, further comprising a controller, wherein a flow meter and an electric valve are arranged on the gas supply pipeline where the gas source is arranged, and the flow meter and the electric valve are electrically connected with the controller.

3. The nitrified liquid reflux system according to claim 1, wherein a first air inlet hole and a second air inlet hole are formed in the stripping device, the first air inlet hole and the second air inlet hole are respectively positioned on the top side and the bottom side of the air source input port, and the area of the first air inlet hole is smaller than that of the second air inlet hole.

4. The nitrified liquid reflux system according to claim 3, wherein the first gas inlet holes have two rows.

5. The nitrifying liquid reflux system according to claim 1, wherein the air release structure comprises a shell and a plurality of air release rings arranged inside the shell, a winding sewage flow passage is formed between adjacent air release rings, and the shell is provided with the water outlet.

6. The nitrified liquid reflux system according to claim 5, wherein the gas release ring comprises a first ring body, a second ring body and a third ring body which are concentrically arranged, the bottom end of the first ring body is connected with the shell, and the inner side of the first ring body is communicated with the stripping device; the second ring body is connected with the first ring body, a sewage circulation channel is arranged between the bottom end of the second ring body and the shell, and the top end of the second ring body is higher than the first ring body; the third ring body is arranged on the outer side of the second ring body, and the bottom end of the third ring body is connected with the shell; the top end of the third ring body is lower than the top ends of the second ring body and the shell.

7. The nitrified liquid reflux system as set forth in claim 6, wherein the first ring and the second ring are connected by a connecting rod.

8. The nitrifying liquid reflux system according to claim 1, wherein the gas source is an aerobic zone gas supply fan.

9. The nitrified liquid reflux system according to claim 1, wherein the water outlet is square or circular.