Ventilation device for sewage treatment
By combining natural and mechanical ventilation, a ventilation device for wastewater treatment has been developed, solving the problem of ventilation efficiency being limited by environmental conditions during wastewater treatment and achieving efficient and energy-saving ventilation.
Patent Information
- Application Number
- CN202520611243.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In existing wastewater treatment processes, the efficiency of natural ventilation is limited by environmental conditions, while mechanical ventilation is energy-intensive, making it difficult to efficiently combine the advantages of both.
A ventilation device for wastewater treatment combining natural and mechanical ventilation was designed. By combining annular channels, natural ventilation mechanisms, and mechanical auxiliary mechanisms, it achieves efficient gas exchange by utilizing thermo-pressure effects and airflow guidance, and can switch to pure mechanical ventilation when necessary.
While ensuring efficient wastewater treatment, it reduces energy consumption, improves ventilation efficiency and flexibility, and adapts to different environmental conditions.
Smart Images
Figure CN223925035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ventilation equipment technical field, specifically, relate to a ventilation device for sewage treatment. BACKGROUND
[0002] In the process of indoor aeration tank of sewage treatment, the management of gas emission is a crucial link. To achieve this goal, the commonly used methods include natural ventilation and mechanical ventilation, both have advantages and disadvantages. Natural ventilation relies on the temperature difference between the aeration tank shed and the outside, external wind, has significant energy saving effect, but its efficiency is limited by environmental conditions, may be poor when wind speed is insufficient or temperature difference is not obvious. Mechanical ventilation provides precise air flow control by using fans and blowers, ensures the oxygen supply demand and harmful gas emission in the sewage treatment process, but its energy consumption is higher, the long-term operation cost is relatively high.
[0003] Therefore, an urgent need arises for a ventilation device for sewage treatment that can combine the advantages of natural ventilation and mechanical ventilation, and can ensure efficient sewage treatment through mechanical ventilation as a supplementary means while natural ventilation is being carried out. SUMMARY
[0004] The utility model aims at providing a ventilation device for sewage treatment, which can combine the advantages of natural ventilation and mechanical ventilation, and can ensure efficient sewage treatment through mechanical ventilation as a supplementary means while natural ventilation is being carried out.
[0005] The embodiments of the utility model realize the following technical schemes:
[0006] A ventilation device for sewage treatment, comprising a controller and a ring-shaped channel installed around the top of the aeration tank, the outside of the ring-shaped channel is provided with a natural ventilation mechanism and a mechanical auxiliary mechanism, the natural ventilation mechanism is in communication with the outside of the aeration tank roof, and the mechanical auxiliary mechanism is electrically connected with the controller; the inside of the ring-shaped channel is provided with an airflow guide mechanism, the backflow direction of the airflow guide mechanism is guided by the mechanical auxiliary mechanism to the natural ventilation mechanism; the inside of the ring-shaped channel is provided with an air inlet.
[0007] Preferably, the natural ventilation mechanism comprises a sleeve provided on the outside of the ring-shaped channel, the sleeve is fixedly connected with the side wall of the aeration tank, and a rotating cap is installed on the top of the sleeve.
[0008] Preferably, the inside of the sleeve is sleeved with a spiral guide plate.
[0009] Preferably, the mechanical auxiliary mechanism comprises a fan fixedly connected with the side wall of the aeration tank, the fan is electrically connected with the controller, and the air outlet of the fan is in communication with the ring-shaped channel through a hose.
[0010] Preferably, the airflow guiding mechanism comprises a plurality of V-shaped guide plates evenly arranged inside the annular channel, the V-shaped guide plates are pointed towards the natural ventilation mechanism by the mechanical auxiliary mechanism and are provided with overflow holes.
[0011] Preferably, the air inlet is provided with an air control check valve.
[0012] Preferably, the top of the rotary air cap is provided with an air speed sensor electrically connected with the controller; the inner side of the aeration tank is provided with a temperature sensor and a gas detector electrically connected with the controller.
[0013] Preferably, the emergency ventilation assembly comprises a first electric louver provided inside the sleeve and electrically connected with the controller, the first electric louver is arranged between the rotary air cap and the spiral flow guide plate; one side of the annular channel is provided with an emergency pipeline in communication, the inner side of the emergency pipeline is provided with a second electric louver electrically connected with the controller.
[0014] Preferably, a mosquito net is arranged between the rotary air cap and the spiral flow guide plate.
[0015] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
[0016] 1. The device can combine the advantages of natural ventilation and mechanical ventilation, ensure efficient sewage treatment through mechanical ventilation as a complementary means while natural ventilation is carried out, by the combination of the natural ventilation mechanism and the mechanical auxiliary mechanism in the annular channel.
[0017] 2. When the gas concentration reaches a threshold value or the natural ventilation efficiency is poor, the emergency ventilation assembly can be started, that is, the sleeve is closed by the first electric louver, the natural ventilation mechanism is closed, the second electric louver is opened to open the emergency pipeline, and the power of the fan is increased, so that the device is switched to pure mechanical ventilation for occasional use. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, on the premise of not paying the creative labor, other related drawings can also be obtained according to these drawings.
[0019] Figure 1 It is the structure plan view of the annular channel in the utility model;
[0020] Figure 2 For Figure 1 Partial cross-sectional view of the middle A cross-section.
[0021] Figure: 1, annular channel; 2, aeration tank roof; 3, air inlet; 4, sleeve; 5, aeration tank side wall; 6, rotating air cap; 7, spiral guide plate; 8, fan; 9, hose; 10, V-shaped guide plate; 11, overflow hole; 12, air control check valve; 13, wind speed sensor; 14, temperature sensor; 15, gas detector; 16, first electric louver; 17, emergency pipeline; 18, second electric louver; 19, insect screen. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0024] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0025] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0026] In the description of the utility model, still need to explain, unless another explicit provision and limitation, if appear term "arrangement", "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.
[0027] A ventilation device for sewage treatment, in some embodiments, as shown in Figures 1-2 A ventilation device for sewage treatment, comprising a controller and a ring channel 1 installed around the outside of the aeration tank roof 2, the outside of the ring channel 1 is provided with a natural ventilation mechanism and a mechanical auxiliary mechanism in communication, the natural ventilation mechanism is in communication with the outside of the aeration tank roof 2, and the mechanical auxiliary mechanism is electrically connected with the controller;The inside of the ring channel 1 is provided with a gas inlet 3;The model of the controller can adopt Siemens S7-1200.
[0028] In specific use, since the aeration tank is in a state of reaction and heat release, the temperature inside the aeration tank chamber is higher than that outside the room, since the natural ventilation mechanism is in communication with the outside of the aeration tank roof 2, under the action of thermal pressure effect (chimney effect), the cold air outside the aeration tank enters the chamber of the aeration tank through the natural ventilation mechanism, and the gas inside the aeration tank is discharged to the outside through the natural ventilation mechanism, thereby realizing natural ventilation;Subsequently, the mechanical auxiliary mechanism can be started to introduce air flow into the ring channel 1, and the air flow rotates around the ring channel 1 under the action of the air flow guide mechanism and causes a pressure difference between the inside of the ring channel 1 and the inside of the aeration tank roof 2, so that the gas inside the aeration tank is sucked into the ring channel 1 under the action of the pressure difference, thereby assisting the discharge of the gas from the natural ventilation mechanism. The device can simultaneously combine the advantages of natural ventilation and mechanical ventilation through the combination of the natural ventilation mechanism and the mechanical auxiliary mechanism in the ring channel 1, so as to ensure the efficient operation of sewage treatment through mechanical ventilation as a supplementary means while natural ventilation.
[0029] In some embodiments, as shown in Figures 1-2 The natural ventilation mechanism comprises a sleeve 4 arranged outside the ring channel 1, the sleeve 4 is fixedly connected with the aeration tank side wall 5, and a rotating air cap 6 is installed at the top of the sleeve 4.
[0030] In specific use, the gas inside the aeration tank is discharged from the sleeve 4, and by the rotation of the rotating air cap 6, the centrifugal force and negative pressure effect help to discharge the gas outside, enhancing the ventilation efficiency.
[0031] In some embodiments, as shown in Figures 1-2 The inside of the sleeve 4 is sleeved with a spiral guide plate 7, and the inclination angle of the threaded guide plate is 45°.
[0032] In specific use, the airflow entering the sleeve 4 is converted from the vertical direction to the spiral upward motion by the threaded guide plate, and the airflow is accelerated by the Coriolis force and centrifugal effect to increase the natural ventilation volume.
[0033] In some embodiments, as shown in Figures 1-2 The mechanical auxiliary mechanism includes a fan 8 fixedly connected with the side wall 5 of the aeration tank, the fan 8 is a variable frequency centrifugal fan 8, and the fan 8 is electrically connected with the controller; the air outlet of the fan 8 is communicated with the annular channel 1 through a hose 9.
[0034] In specific use, the fan 8 is used to assist the airflow into the annular channel 1.
[0035] In some embodiments, as shown in Figures 1-2 The airflow guide mechanism includes a plurality of V-shaped guide plates 10 evenly arranged around the inside of the annular channel 1, and the tip of the V-shaped guide plate 10 is provided with an overflow hole 11.
[0036] In specific use, the airflow slides from the surface of the V-shaped guide plate 10 to the overflow hole 11 at the tip under the push of the pressure, thereby realizing the guidance of the airflow and making the airflow rotate around the path of the annular channel 1.
[0037] In some embodiments, as shown in Figures 1-2 The air control check valve 12 is arranged on the air inlet 3.
[0038] In specific use, the air control check valve 12 prevents the airflow in the annular channel 1 from flowing back to the room of the aeration tank.
[0039] In some embodiments, as shown in Figures 1-2 The top of the rotating air cap 6 is provided with a wind speed sensor 13 electrically connected with the controller; and the inside of the aeration tank is provided with a temperature sensor 14 and a gas detector 15 electrically connected with the controller.
[0040] In specific use, the efficiency of natural ventilation is detected by the wind speed sensor 13, and the temperature difference and gas concentration are detected by the temperature sensor 14 and the gas detector 15, so as to determine the assistance degree (adjust the fan 8) of the mechanical auxiliary mechanism.
[0041] In some embodiments, as shown in Figures 1-2 Further comprising an emergency ventilation assembly, the emergency ventilation assembly comprises a first electric louver 16 arranged inside the sleeve 4 and electrically connected with the controller, the first electric louver 16 is arranged between the rotary air cap 6 and the spiral air deflector 7; one side of the annular channel 1 is communicated with an emergency pipe 17, the inner side of the emergency pipe 17 is provided with a second electric louver 18 electrically connected with the controller.
[0042] In specific use, when the gas concentration reaches a threshold value or the natural ventilation efficiency is poor, the emergency ventilation assembly can be started, that is, the sleeve 4 is closed by the first electric louver 16, so that the natural ventilation mechanism is closed, then the second electric louver 18 is opened, so that the emergency pipe 17 is opened, and then the power of the fan 8 is increased, so that the device is switched to pure mechanical ventilation for use at any time.
[0043] In some embodiments, as shown in Figures 1-2 Figures 1-2 The rotary air cap 6 and the spiral air deflector 7 are provided with an insect screen 19.
[0044] In specific use, the insect screen 19 prevents mosquitoes from entering the aeration tank chamber to breed and proliferate.
[0045] In other embodiments, different from the above-mentioned embodiments, the outer part of the fan 8 is provided with a soundproof box.
[0046] The specific use principle of the device is as follows:
[0047] Since the aeration tank is in a state of reaction and heat release, the temperature in the aeration tank chamber is higher than that outside, since the sleeve 4 is in communication with the outside of the aeration tank ceiling 2, under the action of the thermal pressure effect (chimney effect), the cold air outside the aeration tank enters the chamber of the aeration tank through the sleeve 4, and the gas inside the aeration tank is discharged to the outside through the sleeve 4, so as to realize natural ventilation; then the mechanical auxiliary mechanism can be started to introduce air flow into the annular channel 1, under the action of the air flow guiding mechanism, the air flow rotates around the annular channel 1 and causes a pressure difference between the inner side of the annular channel 1 and the inner side of the aeration tank ceiling 2, so that the gas in the aeration tank is sucked into the annular channel 1 under the action of the pressure difference, thereby assisting the discharge of the gas from the sleeve 4.
[0048] The above is only the preferred embodiment of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An air supply device for sewage treatment, characterized by comprising: The application relates to an aeration tank, which comprises a controller and a ring-shaped channel (1) installed outside the aeration tank roof (2), the outside of the ring-shaped channel (1) is provided with a natural ventilation mechanism and a mechanical auxiliary mechanism, the natural ventilation mechanism is in communication with the outside of the aeration tank roof (2), the mechanical auxiliary mechanism is electrically connected with the controller, the inside of the ring-shaped channel (1) is provided with an airflow guiding mechanism, the backflow direction of the airflow guiding mechanism is guided by the mechanical auxiliary mechanism to the natural ventilation mechanism, and the inner side of the ring-shaped channel (1) is provided with an air inlet (3).
2. The ventilation device for sewage treatment according to claim 1, characterized by The natural ventilation mechanism comprises a sleeve (4) arranged outside the ring-shaped channel (1), the sleeve (4) is fixedly connected with the aeration tank side wall (5), and a rotary wind cap (6) is arranged on the top of the sleeve (4).
3. The ventilation device for sewage treatment according to claim 2, characterized in that The inside of the sleeve (4) is sleeved with a spiral flow guide plate (7).
4. The ventilation device for sewage treatment according to claim 1, characterized by The mechanical auxiliary mechanism comprises a fan (8) fixedly connected with the aeration tank side wall (5), the fan (8) is electrically connected with the controller, and the air outlet of the fan (8) is in communication with the ring-shaped channel (1) through a hose (9).
5. The ventilation device for sewage treatment according to claim 4, characterized in that The airflow guiding mechanism comprises a plurality of V-shaped guide plates (10) uniformly arranged inside the ring-shaped channel (1), and the tip of each V-shaped guide plate (10) is provided with an overflow hole (11).
6. The ventilation device for sewage treatment according to claim 1, characterized by An air control check valve (12) is arranged on the air inlet (3).
7. The ventilation device for sewage treatment according to claim 2, characterized by The top of the rotary wind cap (6) is provided with a wind speed sensor (13) electrically connected with the controller, the inner side of the aeration tank is provided with a temperature sensor (14) and a gas detector (15) electrically connected with the controller.
8. The ventilation device for sewage treatment according to claim 3, characterized by The application further comprises an emergency ventilation assembly, the emergency ventilation assembly comprises a first electric shutter (16) arranged inside the sleeve (4) and electrically connected with the controller, the first electric shutter (16) is arranged between the rotary wind cap (6) and the spiral flow guide plate (7), one side of the ring-shaped channel (1) is provided with an emergency pipeline (17), and the inner side of the emergency pipeline (17) is provided with a second electric shutter (18) electrically connected with the controller.
9. The ventilation device for sewage treatment according to claim 3, characterized by A mosquito net (19) is arranged between the rotary wind cap (6) and the spiral flow guide plate (7).