Water flow control method and system for sedimentation tank for water pollution treatment

Abstract

The present application relates to the field of water treatment technology, and specifically to a method and system for controlling water flow in a sedimentation tank for water pollution treatment. When the present application is applied, a wave-making device is used to drive the sewage in the sedimentation tank to circulate. The circulating flow can improve the contact efficiency between the sewage and the filter screen, that is, to improve the filtering capacity of the filter screen per unit time. After the sewage is filtered by the filter screen, it enters the filter chamber and is pumped away by a water pump. When the fluctuation amplitude of the TDS parameter is too large, it means that there is too much turbulence, and the circulation flow rate needs to be reduced until the fluctuation amplitude is reduced. During the purification process, the water level in the sedimentation tank is monitored. When the TDS parameter is low and the water level is too low, sewage is replenished; when the water level in the filter chamber is too low, swing-type waves are generated toward the filter chamber to clean the filter screen and quickly replenish the water level in the filter chamber.

Description

Technical Field

[0001] The present application relates to the field of water treatment technology, and in particular to a method and system for controlling water flow in a sedimentation tank for water pollution treatment. Background Art

[0002] Water pollution treatment technology is an important part of the field of environmental engineering. With the development of science and technology, the technology in this field is also constantly improving. At present, the main technologies used for water pollution treatment include physical methods, chemical methods, physical and chemical methods and biological methods. Physical methods usually involve processes such as filtration, sedimentation, centrifugal separation and flotation, and separate pollutants by physical or mechanical means. Chemical methods react chemically with harmful substances in sewage by adding chemical substances, such as neutralization, oxidation, reduction, decomposition and chemical precipitation. Physical and chemical methods combine physical and chemical methods, such as air stripping, stripping, adsorption, extraction, ion exchange, electrolysis and electrodialysis, and reverse osmosis. Biological methods use microorganisms to oxidize and decompose organic matter in sewage, including activated sludge method, biological filter, biological rotary disc and oxidation pond.

[0003] In physical treatment methods, a filter screen is required in the sedimentation tank for the initial filtration of wastewater. However, the wastewater does not flow but instead filters through the filter screen. This results in low filtration efficiency and the filter screen is prone to clogging. Therefore, how to improve the filtration efficiency of the filter screen and reduce the probability of filter clogging is a critical technical issue in this field. Summary of the Invention

[0004] In view of this, the present application provides a water flow control method and system for a sedimentation tank for water pollution treatment, which can improve the filtration efficiency of the filter and reduce the probability of filter clogging.

[0005] In the first aspect, the present application provides a method for controlling water flow in a sedimentation tank for water pollution treatment, wherein a wave-making device and a filter device are provided in the sedimentation tank, the wave-making device is arranged on the wall of the sedimentation tank, the filter device includes a filter screen and a water pump, the filter screen has a filter cavity, the filter cavity is immersed in the sewage to be treated in the sedimentation tank, the water pump is arranged in the filter cavity, and the distance between the outer wall of the filter screen and the wall of the sedimentation tank is greater than a preset distance; the method for controlling water flow in a sedimentation tank for water pollution treatment comprises: obtaining a TDS parameter of the sedimentation tank; if the TDS parameter is greater than a first preset value, controlling the wave-making direction of the wave-making device to be parallel to the wall where the wave-making device is located, so as to drive the sewage to be accelerated in the sedimentation tank at a first flow rate. Circulation flow; obtaining the circulation flow velocity of the sewage in real time; if the circulation flow velocity exceeds a first preset flow velocity, controlling the sewage to circulate at a uniform speed through the wave-making device, and controlling the water pump to start pumping water; if the fluctuation amplitude of the TDS parameter within the monitoring time period is greater than a preset amplitude, reducing the driving power of the wave-making device to reduce the circulation flow velocity until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude; if the TDS parameter is lower than a second preset value and the first water level of the sewage in the sedimentation tank is lower than the first preset water level, injecting sewage to be treated into the sedimentation tank; and if the second water level in the filter chamber is lower than the second preset water level, controlling the wave-making device to swing toward the filter chamber to generate waves.

[0006] In combination with the first aspect, in a possible implementation, a plurality of sand retaining plates are provided on the wall of the sedimentation tank opposite the wave-making device, wherein the sand retaining plates have a mesh structure, are arranged at an angle to the wall of the sedimentation tank, and are inclined downward.

[0007] In combination with the first aspect, in a possible implementation, a sand discharge port is provided on the wall surface below the sand retaining plate, and the sand discharge port is connected to a sand storage tank.

[0008] In combination with the first aspect, in a possible implementation, the filter device also includes a rotation drive device, which is connected to the filter screen, and the rotation drive device is configured to drive the filter screen to rotate; the water flow control method for the sedimentation tank for water pollution treatment also includes: if the second water level in the filter chamber is lower than a second preset water level, controlling the rotation drive device to drive the filter screen to rotate.

[0009] In combination with the first aspect, in a possible implementation, the method further includes: if the second water level in the filter chamber starts to rise from a water level lower than the second preset water level, controlling the rotation drive device to start changing speed and decelerating.

[0010] In combination with the first aspect, in a possible implementation, the relationship between the deceleration rate Δv1 of the rotation drive device and the water level rise rate Δv2 of the second water level satisfies: Δv1=h*Δv2, where h is positively correlated with the number of meshes of the filter.

[0011] In combination with the first aspect, in a possible implementation, it also includes: if the rotation speed of the water pump is lower than the safe rotation speed, controlling the rotation drive device to drive the filter screen to rotate; and controlling the wave-making device to swing toward the filter chamber to make waves.

[0012] In combination with the first aspect, in a possible implementation, the bottom wall of the sand storage tank is lower than the bottom wall of the sedimentation tank; the water flow control method of the sedimentation tank for water pollution treatment also includes: monitoring the sand content of the sand storage tank; if the sand content is greater than the preset sand content, controlling the water pump and the wave-making device to stop; and controlling the rotation drive device to drive the filter screen to rotate.

[0013] In combination with the first aspect, in a possible implementation, the method further includes: calling the corresponding first preset value and second preset value according to the water source type of the sewage.

[0014] In the second aspect, the present application provides a water flow control system for a sedimentation tank for water pollution treatment, wherein a wave-making device and a filtering device are provided in the sedimentation tank, the wave-making device is arranged on the wall of the sedimentation tank, the filtering device includes a filter screen and a water pump, the filter screen has a filter cavity, the filter cavity is immersed in the sewage to be treated in the sedimentation tank, the water pump is arranged in the filter cavity, and the distance between the outer wall of the filter screen and the wall of the sedimentation tank is greater than a preset distance; the water flow control system for the sedimentation tank for water pollution treatment includes: a data acquisition module, configured to: obtain the TDS parameter of the sedimentation tank; a first wave-making control module, which is communicated with the data acquisition module, and the first wave-making control module is configured to: if the TDS parameter is greater than a first preset value, control the wave-making direction of the wave-making device to be parallel to the wall where the wave-making device is located, so as to drive the sewage to circulate in the sedimentation tank at a first flow velocity acceleration; a second wave-making control module, which is communicated with the data acquisition module, and the second wave-making control module is configured to: obtain in real time a circulation velocity of the sewage, and if the circulation velocity exceeds a first preset velocity, controlling the sewage to circulate at a uniform speed through the wave-making device, and controlling the water pump to start pumping water; a third wave-making control module, communicatively connected to the data acquisition module, configured to: if the fluctuation amplitude of the TDS parameter within a monitoring time period is greater than a preset amplitude, reduce the driving power of the wave-making device to reduce the circulation velocity until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude; a water injection module, communicatively connected to the data acquisition module, configured to: if the TDS parameter is lower than a second preset value and the first water level of the sewage in the sedimentation tank is lower than the first preset water level, inject sewage to be treated into the sedimentation tank; and a fourth wave-making control module, communicatively connected to the data acquisition module, configured to: if the second water level in the filter chamber is lower than the second preset water level, control the wave-making device to swing toward the filter chamber to generate waves.

[0015] When the present application is used, the sewage in the sedimentation tank is driven to circulate through a wave-making device. The circulating flow can improve the contact efficiency between the sewage and the filter screen, that is, improve the filtering capacity of the filter screen per unit time. After being filtered by the filter screen, the sewage enters the filter chamber and is pumped away by the water pump. When the fluctuation amplitude of the TDS parameter is too large, it means that there is too much turbulence, and the circulation flow rate needs to be reduced until the fluctuation amplitude is reduced. During the purification process, the water level in the sedimentation tank is monitored. When the TDS parameter is low and the water level is too low, sewage is replenished; when the water level in the filter chamber is too low, swing waves are made towards the filter chamber to clean the filter screen and quickly replenish the water level in the filter chamber. In summary, the present application can improve the filtering efficiency of the filter screen and reduce the probability of filter screen clogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic structural diagram of a sedimentation tank for water pollution treatment provided in one embodiment of the present application.

[0017] Figure 2 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0018] Figure 3 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0019] Figure 4 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0020] Figure 5 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0021] Figure 6 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0022] Figure 7 Shown is a schematic diagram of the method steps of a sedimentation tank water flow control method for water pollution treatment provided by another embodiment of the present application.

[0023] Figure 8 Shown is a system structure diagram of a sedimentation tank water flow control system for water pollution treatment provided by another embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0025] The data control method of the liquid cooling system of an exemplary intelligent computing server is as follows:

[0026] Figure 1 Shown is a schematic structural diagram of a sedimentation tank for water pollution treatment provided in one embodiment of the present application. Figure 2 The figure shows a schematic diagram of the steps of a method for controlling water flow in a sedimentation tank for water pollution treatment provided by another embodiment of the present application. The present application provides a method for controlling water flow in a sedimentation tank for water pollution treatment. In one embodiment, as shown in FIG. Figure 1As shown, a wave-making device 1 and a filter device are provided in the sedimentation tank 10. The wave-making device 1 is provided on the wall of the sedimentation tank 10. The filter device includes a filter screen 2 and a pump 3. The filter screen 2 has a filter cavity 201. The filter cavity 201 is immersed in the sewage to be treated in the sedimentation tank 10. The pump 3 is provided in the filter cavity 201. The distance between the outer wall of the filter screen 2 and the wall of the sedimentation tank 10 is greater than a preset distance. Figure 2 As shown, the water flow control method of the sedimentation tank for water pollution treatment includes:

[0027] Step 110 : Obtain the TDS parameter of the sedimentation tank 10 .

[0028] In this step, a TDS sensor is provided in the sedimentation tank 10 to monitor the TDS parameter of the sewage in the sedimentation tank 10 in real time. The TDS parameter reflects the turbidity of the sewage. The higher the TDS, the more turbid the sewage.

[0029] Step 120: If the TDS parameter is greater than the first preset value, the wave-making direction of the wave-making device 1 is controlled to be parallel to the wall where the wave-making device 1 is located, so as to drive the sewage to circulate in the sedimentation tank 10 at a first flow rate acceleration.

[0030] In this step, the sewage data in the sedimentation tank 10 is detected in real time. When the TDS parameter is greater than the first preset value, it indicates that the sewage is relatively turbid and sewage treatment can be started. The wave-making device 1 drives the sewage to flow along the wall, which can drive the sewage to circulate in the sedimentation tank 10. The sewage is constantly in contact with the filter screen 2. The filtered sewage passes through the filter screen 2 and enters the filter cavity 201 in the filter screen 2 and is then pumped away by the water pump 3. In addition, when the wave-making device 1 is working, it gradually starts to accelerate at the first flow rate acceleration to avoid sudden changes in the circulation flow rate, resulting in excessive turbulence and uneven contact between the filter screen 2 and the sewage. Uneven contact may cause the filter screen 2 to clog faster. Different first preset values can be set according to the type of sewage to be treated. For example, the more turbid the sewage type, the smaller the first preset value.

[0031] Step 130: Obtain the circulation velocity of the sewage in real time. If the circulation velocity exceeds the first preset velocity, control the sewage to circulate at a uniform speed through the wave-making device 1, and control the water pump 3 to start pumping water.

[0032] In this step, when the circulation flow rate gradually rises to the first preset flow rate, there is no need to continue to increase the circulation flow rate. At this time, the uniform circulation flow is controlled, and the sewage is filtered. The water pump 3 is started to pump water from the filter chamber 201.

[0033] Step 140: If the fluctuation amplitude of the TDS parameter during the monitoring period is greater than the preset amplitude, the driving power of the wave-making device 1 is reduced to reduce the circulation flow rate until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude.

[0034] In this step, the fluctuation amplitude of the TDS parameter is detected in real time. When the fluctuation amplitude is greater than the preset amplitude, it means that there is a lot of turbulence in the sewage in the sedimentation tank 10. Excessive turbulence may cause uneven contact between the filter 2 and the sewage. The circulation flow rate needs to be reduced until the fluctuation amplitude is less than or equal to the preset amplitude.

[0035] Step 150 : If the TDS parameter is lower than the second preset value and the first water level of the sewage in the sedimentation tank 10 is lower than the first preset water level, inject the sewage to be treated into the sedimentation tank 10 .

[0036] In this step, under continuous filtering and pumping, a large amount of water and dissolved solids are pumped away by the pump 3, causing the TDS parameter and sewage water level to continuously decrease. When the TDS parameter is lower than the second preset value and the sewage water level is lower than the first preset water level, it is indicated that the sewage in the sedimentation tank 10 has been greatly reduced. At this time, the sewage to be treated can be replenished into the sedimentation tank 10. Different second preset values can be set according to the type of sewage to be treated. For example, the more turbid the sewage type, the larger the second preset value, making step 150 easier to trigger, thereby replenishing the sewage to be treated as soon as possible, diluting the TDS parameter of the sewage in the sedimentation tank 10, and preventing the filter 2 from being blocked too quickly.

[0037] Step 160 : If the second water level in the filter chamber 201 is lower than the second preset water level, the wave-making device 1 is controlled to swing toward the filter chamber 201 to generate waves.

[0038] In this step, the water level in the filter chamber 201 is monitored. If the water level is too low to a second preset water level, it indicates that the filter screen 2 is clogged, resulting in reduced permeability. At this time, the wave-making device 1 is controlled to turn to the filter chamber 201 to create flow on the filter screen 2 by swinging wave-making. On the one hand, the swinging wave-making can clean sand, debris, etc. on the filter screen 2 through a sweeping water flow. On the other hand, it can speed up the passage rate of sewage on the filter screen 2, thereby quickly replenishing and raising the water level in the filter chamber 201.

[0039] During application, this embodiment uses the wave-generating device 1 to drive the sewage within the sedimentation tank 10 into a circular flow. This circular flow improves the contact efficiency between the sewage and the filter screen 2, i.e., increases the filtering capacity of the filter screen 2 per unit time. After being filtered by the filter screen 2, the sewage enters the filter chamber 201 and is pumped away by the pump 3. Excessive fluctuations in the TDS parameter indicate excessive turbulence, which can lead to uneven contact between the filter screen 2 and the sewage. Uneven contact can cause the filter screen 2 to clog more quickly, so the circulation flow rate needs to be reduced until the fluctuations decrease. During the purification process, the water level within the sedimentation tank 10 is monitored. When the TDS parameter is low and the water level is too low, sewage is replenished. When the water level within the filter chamber 201 is too low, oscillating waves are generated toward the filter chamber 201 to clean the filter screen 2 and quickly replenish the water level within the filter chamber 201. In summary, this embodiment can improve the filtration efficiency of the filter screen and reduce the probability of filter clogging.

[0040] In one embodiment, if Figure 1 As shown, multiple sand deflectors 4 are installed on the wall of the sedimentation tank 10 opposite the wave-making device 1. These deflectors 4 have a mesh structure and are angled downward relative to the wall of the sedimentation tank 10. A sand discharge port 101 is provided on the wall below the deflectors 4. This port 101 connects to the sand storage tank 5. During operation, sewage flows in a circular pattern. Some sand and gravel carried in the sewage are intercepted by the mesh structure of the deflectors 4. The circulating water flow is not significantly affected by the mesh structure of the deflectors 4. A portion of the intercepted sand and gravel enters the sand storage tank 5 through the deflectors 101. The sand storage tank 5 can be cleaned periodically later. The deflectors 4 effectively reduce the sand and gravel content in the sewage, minimizing the likelihood of clogging the filter screen 2, thereby ensuring the filtration efficiency of the filter screen 2. Specifically, the side of the deflector 101 facing the interior of the sedimentation tank 10 features a curved surface to facilitate the passage of sand and gravel into the sand storage tank 5.

[0041] Figure 3 FIG. 1 is a schematic diagram showing the steps of a method for controlling water flow in a sedimentation tank for treating water pollution provided by another embodiment of the present application. Figure 1 As shown, the filter device also includes a rotation drive device 6, which is connected to the filter screen 2. The rotation drive device 6 is configured to drive the filter screen 2 to rotate. Specifically, the rotation drive device 6 includes a driving gear. The filter screen 2 is a cylindrical structure. The driving gear contacts the outer peripheral side of the cylindrical structure filter screen 2. The outer peripheral side of the filter screen 2 can be provided with a circle of teeth to engage with the driving gear. When the driving gear rotates, it can drive the filter screen 2 to rotate. A support shaft 202 is provided in the middle of the filter screen 2 to support the rotation of the filter screen 2. Figure 3 As shown, the water flow control method of the sedimentation tank for water pollution treatment also includes:

[0042] Step 170: If the second water level in the filter chamber 201 is lower than the second preset water level, control the rotation drive device 6 to drive the filter screen 2 to rotate.

[0043] In this embodiment, if the water level in filter chamber 201 drops too low, to a second predetermined level, indicating that filter screen 2 is clogged, resulting in reduced permeability, the wave-generating device 1 is controlled to rotate toward filter chamber 201 to create oscillating waves to clear sand and debris from filter screen 2. Furthermore, filter screen 2 is controlled to rotate. The rotating filter screen 2 removes sand and debris and improves the contact efficiency between the sewage and filter screen 2, thereby accelerating the passage of sewage through filter screen 2 and rapidly replenishing the water level in filter chamber 201.

[0044] Figure 4 FIG. 1 is a schematic diagram showing the steps of a method for controlling water flow in a sedimentation tank for treating water pollution provided by another embodiment of the present application. Figure 4 As shown, the sedimentation tank water flow control method for water pollution treatment also includes:

[0045] Step 180: If the second water level in the filter chamber 201 starts to rise from a water level lower than the second preset water level, the rotation drive device 6 is controlled to start speed change and deceleration.

[0046] In this embodiment, when the water level in the filter chamber 201 begins to rise, it means that the amount of sand and gravel blocking the filter screen 2 is reduced, and the rotation speed of the filter screen 2 can be appropriately reduced, that is, the speed of the rotation drive device 6 can be reduced.

[0047] Specifically, the relationship between the deceleration rate Δv1 of the rotation drive device 6 and the water level rise rate Δv2 of the second water level satisfies: Δv1=h*Δv2, and the parameter h is positively correlated with the number of meshes of the filter 2. The more meshes there are, the larger the value of the parameter h. Under the same water level rise rate Δv2, the more meshes there are, the larger the deceleration rate Δv1 of the rotation drive device 6 is, that is, the more meshes there are, the higher the pass rate of sewage through the filter 2 is, and the filter 2 does not need to rotate quickly anymore, and a larger deceleration rate Δv1 can be used to stop. Under the same number of meshes, the larger the water level rise rate Δv2, the faster the water level in the filter chamber 201 rises, indicating that the blockage rate of the filter 2 is low, and the filter 2 does not need to rotate quickly anymore, and a larger deceleration rate Δv1 can be used to stop.

[0048] Figure 5 FIG. 1 is a schematic diagram showing the steps of a method for controlling water flow in a sedimentation tank for treating water pollution provided by another embodiment of the present application. Figure 5 As shown, the sedimentation tank water flow control method for water pollution treatment also includes:

[0049] Step 190: If the rotation speed of the water pump 3 is lower than the safe rotation speed, the rotation drive device 6 is controlled to drive the filter screen 2 to rotate.

[0050] Step 200 , controlling the wave-making device 1 to swing toward the filter chamber 201 to generate waves.

[0051] In this embodiment, when the speed of the water pump 3 is too low, it means that the water quality in the filter chamber 201 is too turbid, which causes the pumping efficiency of the water pump 3 to decrease. At this time, the wave-making device 1 is controlled to swing toward the filter chamber 201 to generate waves, which can improve the contact efficiency between the sewage and the filter screen 2, thereby increasing the amount of water entering the filter chamber 201 more quickly, thereby diluting the water in the filter chamber 201, and enabling the speed of the water pump 3 to gradually recover.

[0052] Figure 6 FIG. 1 is a schematic diagram showing the steps of a method for controlling water flow in a sedimentation tank for treating water pollution provided by another embodiment of the present application. Figure 1As shown, the bottom wall of the sand storage tank 5 is lower than the bottom wall of the sedimentation tank 10. Figure 6 As shown, the sedimentation tank water flow control method for water pollution treatment also includes:

[0053] Step 210: monitor the sand content in the sand storage tank 5.

[0054] Step 220: If the sand content is greater than the preset sand content, the water pump 3 and the wave-making device 1 are controlled to stop.

[0055] Step 230: Control the rotation drive device 6 to drive the filter screen 2 to rotate.

[0056] When this embodiment is used, the pumping pump 3 and the wave-making device 1 are controlled to stop according to the sand content in the sand storage tank 5. When the sand content is too high, the sand storage tank 5 cannot store more sand and gravel, which may lead to a poor sand removal effect of the sand baffle 4 and an inability to effectively reduce the sand content in the sedimentation tank 10. At this time, the pumping pump 3 and the wave-making device 1 are stopped, the water purification operation is stopped, and the filter screen 2 is controlled to start rotating to shake off the sand and gravel debris adhering to the filter screen 2 in preparation for the next water purification operation.

[0057] Figure 7 FIG. 1 is a schematic diagram showing the steps of a method for controlling water flow in a sedimentation tank for treating water pollution provided by another embodiment of the present application. Figure 7 As shown, the sedimentation tank water flow control method for water pollution treatment also includes:

[0058] Step 240: According to the source type of the sewage, call the corresponding first preset value and second preset value.

[0059] In this embodiment, in areas with poor water quality, the value of the first preset value can be lowered and the value of the second preset value can be increased, thereby reducing the triggering conditions of steps 120 and 150, making steps 120 and 150 easier to trigger, that is, increasing the reaction speed of steps 120 and 150 so that the execution reaction speed matches the local water quality, thereby improving sewage treatment efficiency. In areas with good water quality, the value of the first preset value can be increased and the value of the second preset value can be lowered, thereby reducing the reaction speed of steps 120 and 150 so that the execution reaction speed matches the local water quality, thereby matching the sewage treatment efficiency with the local water quality.

[0060] An exemplary sedimentation tank water flow control system for water pollution treatment is as follows:

[0061] Figure 8 The figure shows a schematic diagram of the system structure of a water flow control system for a sedimentation tank for water pollution treatment provided by another embodiment of the present application. The present application also provides a water flow control system for a sedimentation tank for water pollution treatment, such as Figure 1As shown, a wave-making device 1 and a filter device are provided in the sedimentation tank 10. The wave-making device 1 is provided on the wall of the sedimentation tank 10. The filter device includes a filter screen 2 and a pump 3. The filter screen 2 has a filter cavity 201. The filter cavity 201 is immersed in the sewage to be treated in the sedimentation tank 10. The pump 3 is provided in the filter cavity 201. The distance between the outer wall of the filter screen 2 and the wall of the sedimentation tank 10 is greater than a preset distance. Figure 8 As shown, the water flow control system of the sedimentation tank for water pollution treatment includes: a data acquisition module 801, a first wave-making control module 802, a second wave-making control module 803, a third wave-making control module 804, a water injection module 805 and a fourth wave-making control module 806.

[0062] The data acquisition module 801 is configured to obtain the TDS parameters of the sedimentation tank 10 .

[0063] The first wave-making control module 802 is communicatively connected to the data acquisition module 801. The first wave-making control module 802 is configured to: if the TDS parameter is greater than a first preset value, control the wave-making direction of the wave-making device 1 to be parallel to the wall where the wave-making device 1 is located, so as to drive the sewage to circulate in the sedimentation tank 10 at a first flow velocity acceleration.

[0064] The second wave-making control module 803 is in communication with the data acquisition module 801. The second wave-making control module 803 is configured to obtain the circulation velocity of the sewage in real time. If the circulation velocity exceeds the first preset velocity, the sewage is controlled to circulate at a uniform speed through the wave-making device 1, and the water pump 3 is controlled to start pumping water.

[0065] The third wave-making control module 804 is communicatively connected to the data acquisition module 801. The third wave-making control module 804 is configured to: if the fluctuation amplitude of the TDS parameter during the monitoring time period is greater than a preset amplitude, reduce the driving power of the wave-making device 1 to reduce the circulation flow rate until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude.

[0066] The water injection module 805 is in communication with the data acquisition module 801 and is configured to inject the sewage to be treated into the sedimentation tank 10 if the TDS parameter is lower than the second preset value and the first water level of the sewage in the sedimentation tank 10 is lower than the first preset water level.

[0067] The fourth wave-making control module 806 is in communication with the data acquisition module 801 . The fourth wave-making control module 806 is configured to control the wave-making device 1 to swing toward the filter chamber 201 to make waves if the second water level in the filter chamber 201 is lower than the second preset water level.

[0068] The basic principles of the present application have been described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, and effects mentioned in this application are merely illustrative and not restrictive, and it should not be assumed that these advantages, strengths, and effects are required of each embodiment of this application. In addition, the specific details disclosed above are merely illustrative and facilitating understanding, and are not restrictive. The above details do not limit this application to necessarily being implemented using the above specific details.

[0069] The block diagrams of the devices, devices, equipment, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, devices, equipment, and systems can be connected, arranged, or configured in any manner. Words such as "include," "comprise," "have," and the like are open-ended words, meaning "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or" and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0070] It should also be noted that in the apparatus, device, and method of the present application, each component or each step can be decomposed and / or recombined, and such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0071] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to be applied in the widest sense consistent with the principles and novel features of the present invention.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for controlling water flow in a sedimentation tank for treating water pollution, characterized in that: The sedimentation tank (10) is provided with a wave-making device (1) and a filtering device, wherein the wave-making device (1) is arranged on the wall surface of the sedimentation tank (10), and the filtering device comprises a filter screen (2) and a water pump (3), wherein the filter screen (2) has a filter cavity (201), and the filter cavity (201) is immersed in the sewage to be treated in the sedimentation tank (10), and the water pump (3) is arranged in the filter cavity (201), and the distance between the outer wall of the filter screen (2) and the wall surface of the sedimentation tank (10) is greater than a preset distance; The water flow control method for the sedimentation tank for water pollution treatment comprises: Obtaining TDS parameters of the sedimentation tank (10); If the TDS parameter is greater than a first preset value, the wave-making direction of the wave-making device (1) is controlled to be parallel to the wall surface where the wave-making device (1) is located, so as to drive the sewage to circulate in the sedimentation tank (10) at a first flow rate acceleration; The circulation velocity of the sewage is obtained in real time. If the circulation velocity exceeds a first preset velocity, the sewage is controlled to circulate at a uniform speed by the wave-making device (1), and the water pump (3) is controlled to start pumping water; If the fluctuation amplitude of the TDS parameter within the monitoring time period is greater than a preset amplitude, the driving power of the wave-making device (1) is reduced to reduce the circulation flow rate until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude; If the TDS parameter is lower than a second preset value and the first water level of the sewage in the sedimentation tank (10) is lower than the first preset water level, injecting the sewage to be treated into the sedimentation tank (10); and If the second water level in the filter chamber (201) is lower than the second preset water level, the wave-making device (1) is controlled to swing toward the filter chamber (201) to generate waves.

2. The method for controlling water flow in a sedimentation tank for water pollution treatment according to claim 1, wherein: A plurality of sand retaining plates (4) are provided on the wall of the sedimentation tank (10) on the opposite side of the wave-making device (1), wherein the sand retaining plates (4) have a mesh structure, are arranged at an angle to the wall of the sedimentation tank (10), and are inclined downward.

3. The method for controlling water flow in a sedimentation tank for water pollution treatment according to claim 2, wherein: A sand discharge port (101) is provided on the wall surface below the sand retaining plate (4), and the sand discharge port (101) is connected to the sand storage tank (5).

4. The method for controlling water flow in a sedimentation tank for water pollution treatment according to claim 3, wherein: The filtering device further comprises a rotation driving device (6), the rotation driving device (6) being connected to the filter screen (2), and the rotation driving device (6) being configured to drive the filter screen (2) to rotate; The water flow control method for the sedimentation tank for water pollution treatment also includes: If the second water level in the filter chamber (201) is lower than the second preset water level, the rotation drive device (6) is controlled to drive the filter screen (2) to rotate.

5. The method for controlling water flow in a sedimentation tank for treating water pollution according to claim 4, wherein: Also includes: If the second water level in the filter chamber (201) starts to rise from a water level lower than the second preset water level, the rotation drive device (6) is controlled to start speed change and deceleration.

6. The method for controlling water flow in a sedimentation tank for water pollution treatment according to claim 5, characterized in that: The relationship between the deceleration rate Δv1 of the rotation drive device (6) and the water level rising rate Δv2 of the second water level satisfies: Δv1=h*Δv2, where h is positively correlated with the number of meshes of the filter (2).

7. The method for controlling water flow in a sedimentation tank for treating water pollution according to claim 4, characterized in that: Also includes: If the rotation speed of the water pump (3) is lower than the safe rotation speed, the rotation drive device (6) is controlled to drive the filter screen (2) to rotate; as well as The wave-making device (1) is controlled to swing toward the filter chamber (201) to generate waves.

8. The method for controlling water flow in a sedimentation tank for water pollution treatment according to claim 4, wherein: The bottom wall of the sand and water storage tank (5) is lower than the bottom wall of the sedimentation tank (10); The water flow control method for the sedimentation tank for water pollution treatment also includes: Monitoring the sand content of the sand storage tank (5); If the sand content is greater than a preset sand content, the water pump (3) and the wave-making device (1) are controlled to stop; and The rotation drive device (6) is controlled to drive the filter screen (2) to rotate.

9. The method for controlling water flow in a sedimentation tank for treating water pollution according to claim 1, wherein: Also includes: According to the water source type of the sewage, the corresponding first preset value and the second preset value are called.

10. A water flow control system for a sedimentation tank for water pollution treatment, characterized in that: The sedimentation tank (10) is provided with a wave-making device (1) and a filtering device, wherein the wave-making device (1) is arranged on the wall surface of the sedimentation tank (10), and the filtering device comprises a filter screen (2) and a water pump (3), wherein the filter screen (2) has a filter cavity (201), and the filter cavity (201) is immersed in the sewage to be treated in the sedimentation tank (10), and the water pump (3) is arranged in the filter cavity (201), and the distance between the outer wall of the filter screen (2) and the wall surface of the sedimentation tank (10) is greater than a preset distance; The water flow control system of the sedimentation tank for water pollution treatment includes: A data acquisition module is configured to: obtain TDS parameters of the sedimentation tank (10); a first wave-making control module, communicatively connected to the data acquisition module, wherein the first wave-making control module is configured to: if the TDS parameter is greater than a first preset value, control the wave-making direction of the wave-making device (1) to be parallel to the wall surface where the wave-making device (1) is located, so as to drive the sewage to circulate in the sedimentation tank (10) at a first flow rate acceleration; a second wave-making control module, which is in communication with the data acquisition module and is configured to: obtain the circulation velocity of the sewage in real time; if the circulation velocity exceeds a first preset velocity, control the sewage to circulate at a uniform speed through the wave-making device (1), and control the water pump (3) to start pumping water; a third wave-making control module, communicatively connected to the data acquisition module, wherein the third wave-making control module is configured to: if the fluctuation amplitude of the TDS parameter within the monitoring time period is greater than a preset amplitude, reduce the driving power of the wave-making device (1) to reduce the circulation flow rate until the fluctuation amplitude of the TDS parameter is less than or equal to the preset amplitude; a water injection module, communicatively connected to the data acquisition module, wherein the water injection module is configured to: inject the sewage to be treated into the sedimentation tank (10) if the TDS parameter is lower than a second preset value and the first water level of the sewage in the sedimentation tank (10) is lower than the first preset water level; and A fourth wave-making control module is communicatively connected to the data acquisition module, and the fourth wave-making control module is configured to control the wave-making device (1) to swing toward the filter chamber (201) to make waves if the second water level in the filter chamber (201) is lower than a second preset water level.

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