Open type nitrification tank defoaming device
By designing an open nitration tank defoaming device, the combination of mechanical defoaming and defoaming agent spraying, the problem of excessive foam in the open nitration tank is solved, and the automatic control of the foam and the reduction of operating costs are achieved.
Patent Information
- Application Number
- CN202421764506.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The open nitrification tank cannot be equipped with conventional defoaming devices, resulting in excessive foam generation and rising liquid level, affecting the system's heat dissipation and operating efficiency.
An open nitrification tank defoaming device is designed, including a defoaming master tube, a defoaming water pump, a defoaming branch tube and a spiral nozzle. By spraying sewage and defoaming agent cooled by the heat exchanger, mechanical defoaming and automatic control of foam production are achieved.
Through the combination of mechanical defoaming and defoaming agent spraying, the foam volume of the nitrification tank is reduced by 60%, the defoaming agent is reduced by 40%, and 500kg of defoaming agent can be saved every year, reducing operating costs.
Smart Images
Figure CN222861289U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of sewage nitrification, in particular to an open nitrification pool defoaming device. [Background technology]
[0002] The nitrification tank of the leachate project is designed as an open water tank, and conventional defoaming devices cannot be installed. During the biochemical treatment of leachate wastewater, a lot of foam will be generated in the nitrification tank, and the liquid level will rise or even overflow. Excessive foam in the aerobic tank will also affect the heat dissipation of the system and the observation and treatment of the liquid level and operation conditions, directly affecting the system treatment efficiency.
[0003] In view of this, it is necessary to provide an open nitrification tank defoaming device to overcome the above-mentioned defects. [Contents of the utility model]
[0004] The utility model aims to provide an open nitrification pool defoaming device, aiming to improve the problem that the open nitrification pool cannot be defoamed by conventional defoaming devices, and realize automatic control of the foam generated in the nitrification pool.
[0005] In order to achieve the above-mentioned purpose, the utility model provides an open nitrification pool defoaming device, which is applied in an open nitrification pool, and comprises:
[0006] A defoaming main pipe, wherein the defoaming main pipe is arranged along the edge of the nitrification tank;
[0007] A defoaming water pump, the defoaming water pump is connected to the defoaming main pipe and is used to pump defoaming liquid into the defoaming main pipe;
[0008] A plurality of defoaming branch pipes, one end of each of which is fixed to a predetermined position of the defoaming main pipe and communicated with the connected defoaming main pipe; one end of the defoaming branch pipe away from the defoaming main pipe extends into the nitrification tank and is arranged above the liquid surface;
[0009] The spiral nozzles are arranged one by one at one end of the defoaming branch pipe away from the defoaming main pipe, and are used to spray the defoaming liquid into the nitrification tank.
[0010] In a preferred embodiment, the defoaming main pipe includes a first pipe and a plurality of second pipes vertically connected to the first pipe, and the plurality of second pipes are respectively located on the long sides of the nitrification tank.
[0011] In a preferred embodiment, two second pipelines disposed at the connection between adjacent nitrification tanks are reused as the same second pipeline.
[0012] In a preferred embodiment, the multiple defoaming branch pipes connected to the same defoaming main pipe are arranged at equal intervals.
[0013] In a preferred embodiment, the spiral nozzle includes a liquid inlet pipe with one end connected to the end of the defoaming branch pipe and a nozzle arranged at one end of the liquid inlet pipe away from the defoaming branch pipe, and a spiral cavity connected to the liquid inlet pipe is provided in the nozzle; the nozzle is used to spray the rotating liquid flow in the spiral cavity outward to form a spiral spray.
[0014] The open nitrification pool defoaming device provided by the utility model first flows the sewage cooled by the heat exchanger into each defoaming branch pipe through the defoaming main pipe, and sprays it around from the spiral nozzle arranged at one end of the defoaming branch pipe, thereby increasing the defoaming area, preventing the water flow from directly rushing to the pool surface, and allowing the water flow or water droplets to break the bubbles floating on the water surface, and perform mechanical defoaming to achieve the functions of defoaming and defoaming. At the same time, a defoaming agent adding point is also arranged on the defoaming main pipe. After the defoaming water pump is started, the cooling water mixed with the defoaming agent is defoamed and defoamed in the nitrification pool through the spiral nozzle. By controlling the foam in the nitrification pool, the foam is prevented from rising and overflowing, thereby preventing the foam from affecting the heat dissipation of the system and the observation and treatment of the liquid level and the operation status, so that the foam will not affect the processing efficiency, save the amount of defoaming agent, and realize the automatic control of the foam generated in the nitrification pool. Therefore, through the combination of sewage spraying mechanical defoaming and defoaming agent spraying, mechanical defoaming can reduce the amount of foam in the nitrification pool by 60% and reduce the amount of defoaming agent by 40%. Each nitrification pool can save 500kg of defoaming agent per year, reducing operating costs.
Brief Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A top view of the open nitrification tank defoaming device provided by the utility model arranged on the nitrification tank;
[0017] Figure 2 for Figure 1 A longitudinal half-section view of a spiral nozzle in an open nitrification tank defoaming device;
[0018] Figure 3 for Figure 2 The spiral nozzle is shown in the picture when spraying.
[0019] Reference numerals in the figure: 100, open nitrification tank defoaming device; 200, nitrification tank;
[0020] 10. Defoaming main pipe; 11. First pipeline; 12. Second pipeline; 20. Defoaming water pump; 30. Defoaming branch pipe; 40. Spiral nozzle; 41. Liquid inlet pipe; 42. Nozzle. [Specific implementation method]
[0021] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.
[0022] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0023] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0024] In an embodiment of the utility model, an open nitrification pool defoaming device 100 is provided, which is applied to an open nitrification pool 200 and is used to spray sewage cooled by a heat exchanger into the nitrification pool 200, which can not only replenish the sewage in the nitrification pool 200, but also perform mechanical defoaming to reduce the amount of defoaming agent used; at the same time, it can also spray defoaming liquid into the nitrification pool 200 to achieve automatic control of the foam generated in the nitrification pool 200. The defoaming liquid can be mixed into the sewage and sprayed into the nitrification pool.
[0025] like Figure 1 As shown, the open nitrification tank defoaming device 100 includes: a defoaming main pipe 10, a defoaming water pump 20, a plurality of defoaming branch pipes 30, and a spiral nozzle 40.
[0026] It should be noted that the open nitrification pool 200 is usually designed as a rectangular pool, and its edge top is defined as including a pair of oppositely disposed long sides and a pair of oppositely disposed short sides.
[0027] The defoaming main pipe 10 is arranged along the edge of the nitrification tank 200 .
[0028] Specifically, the defoaming main pipe 10 includes a first pipe 11 and a plurality of second pipes 12 vertically connected to the first pipe 11. The first pipe 11 can be arranged higher than the nitrification tank 200 and arranged on the short side of the plurality of nitrification tanks 200. The plurality of second pipes 12 are all connected to the first pipe 11. A section of the second pipe 12 close to the first pipe 11 is bent so that the remaining part is located on the long side of the nitrification tank 200, so that the defoaming branch pipe 30 can be closer to the center of the nitrification tank 200.
[0029] Furthermore, if Figure 1 As shown, two second pipelines 12 disposed at the connection of adjacent nitrification tanks 200 are reused as the same second pipeline 12 to simplify the entire pipeline structure.
[0030] The defoaming water pump 20 is connected to the defoaming main pipe 10, and is used to pump defoaming liquid into the defoaming main pipe 10. The defoaming liquid can be cooling water mixed with a defoaming agent.
[0031] In this embodiment, one end of each defoaming branch pipe 30 is fixed at a predetermined position of the defoaming mother pipe 10 and is connected to the connected defoaming mother pipe 10. Further, the multiple defoaming branch pipes 30 connected to the same defoaming mother pipe 10 are arranged at equal intervals, so that the spatial distribution of the defoaming branch pipes 30 is more uniform, so that defoaming and degassing can be more uniform.
[0032] Among them, one end of the defoaming branch pipe 30 away from the defoaming main pipe 10 extends into the nitrification tank 200 and is arranged above the liquid surface, so as to facilitate spraying to the liquid surface of the nitrification tank 200 to achieve mechanical defoaming and degassing effects.
[0033] Combination Figure 2 As shown, the spiral spray heads 40 are arranged one by one at one end of the defoaming branch pipe 30 away from the defoaming main pipe 10 , and are used to spray the defoaming liquid or sewage into the nitrification tank 200 .
[0034] Specifically, the spiral spray head 40 includes a liquid inlet pipe 41 whose one end is connected to the end of the defoaming branch pipe 30 and a nozzle 42 disposed at the end of the liquid inlet pipe 41 away from the defoaming branch pipe 30. The nozzle 42 is provided with a spiral cavity (not shown in the figure) connected to the liquid inlet pipe 41. The spiral cavity can convert the sewage or defoaming liquid flowing into the liquid inlet pipe 41 into a rotating liquid flow, and the nozzle 42 is used to spray the rotating liquid flow in the spiral cavity outward to form a spiral spray (such as Figure 3 shown).
[0035] In summary, the open nitrification pool defoaming device 100 provided by the utility model can firstly allow the sewage cooled by the heat exchanger to flow into each defoaming branch pipe 30 through the defoaming main pipe 10, and then spray it around from the spiral nozzle 40 arranged at one end of the defoaming branch pipe 30, thereby increasing the defoaming area, preventing the water flow from directly rushing to the pool surface, and allowing the water flow or water droplets to break the bubbles floating on the water surface, so as to perform mechanical defoaming and achieve the functions of defoaming and defoaming. At the same time, a defoaming agent adding point is also provided on the defoaming main pipe 10. After the defoaming water pump 20 is started, the cooling water mixed with the defoaming agent is defoamed and defoamed in the nitrification pool 200 through the spiral nozzle 40. By controlling the foam of the nitrification pool 200, the foam is prevented from rising and overflowing, thereby preventing the foam from affecting the heat dissipation of the system and the observation and processing of the liquid level and the operation status, so that the foam will not affect the processing efficiency, save the amount of defoaming agent, and realize the automatic control of the foam generated in the nitrification pool. Therefore, through the combination of sewage spraying mechanical defoaming and defoaming agent spraying, mechanical defoaming can reduce the amount of foam in the nitrification pool by 60% and reduce the amount of defoaming agent by 40%. Each nitrification pool can save 500kg of defoaming agent per year, reducing operating costs.
[0036] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.
Claims
1. An open nitrification pool defoaming device, applied in an open nitrification pool, characterized in that: include: A defoaming main pipe, wherein the defoaming main pipe is arranged along the edge of the nitrification tank; A defoaming water pump, the defoaming water pump is connected to the defoaming main pipe and is used to pump defoaming liquid into the defoaming main pipe; A plurality of defoaming branch pipes, one end of each of which is fixed to a predetermined position of the defoaming main pipe and communicated with the connected defoaming main pipe; one end of the defoaming branch pipe away from the defoaming main pipe extends into the nitrification tank and is arranged above the liquid surface; The spiral nozzles are arranged one by one at one end of the defoaming branch pipe away from the defoaming main pipe, and are used to spray the defoaming liquid into the nitrification tank.
2. The open nitrification tank defoaming device according to claim 1, characterized in that: The defoaming main pipe includes a first pipe and a plurality of second pipes vertically connected to the first pipe, and the plurality of second pipes are respectively located on the long sides of the nitrification tank.
3. The open nitrification pool defoaming device according to claim 2, characterized in that: The two second pipelines arranged at the connection of the adjacent nitrification tanks are reused as the same second pipeline.
4. The open nitrification pool defoaming device according to claim 1, characterized in that: The multiple defoaming branch pipes connected to the same defoaming main pipe are arranged at equal intervals.
5. The open nitrification pool defoaming device according to claim 1, characterized in that: The spiral nozzle includes a liquid inlet pipe with one end connected to the end of the defoaming branch pipe and a nozzle arranged at one end of the liquid inlet pipe away from the defoaming branch pipe, and a spiral cavity connected to the liquid inlet pipe is arranged in the nozzle; the nozzle is used to spray the rotating liquid flow in the spiral cavity outward to form a spiral spray.