Control method and device of ultrasonic tempering system

Abstract

The application discloses a control method of an ultrasonic conditioning system, which is applied to the ultrasonic conditioning system, the ultrasonic conditioning system comprises an ultrasonic transduction array, an electric field array and a flowmeter group, the ultrasonic transduction array and the electric field array are sequentially arranged along a sludge backflow process, the flowmeter is arranged in correspondence with an electrode plate of the electric field array, each group of transducers and electrode plates of the ultrasonic transduction array and the electric field array are controlled through corresponding matrix switches, and each switch in the matrix switch has a first state, a second state and a third state. According to the method, the working state of the ultrasonic transduction array can be dynamically adjusted according to the organic matter content in a sludge sample, and the conditioning treatment can be more effectively carried out on the organic matter content in the sludge. The on-demand adjustment mode can optimize the use of ultrasonic energy, thereby improving the degradation efficiency of the organic matter, and the working state of the ultrasonic transduction array can be adjusted according to actual conditions, so that the treatment effect reaches the expectation.

Description

Technical Field

[0001] This invention belongs to the field of industrial control, and specifically relates to a control method and device for an ultrasonic conditioning system. Background Technology

[0002] In recent years, ultrasonic conditioning technology has attracted widespread attention as a novel sludge treatment technology due to its non-contact, high-efficiency, and environmentally friendly characteristics. However, current ultrasonic conditioning systems have limited control methods and poor applicability, failing to adjust the treatment logic in a timely manner according to the sludge morphology, resulting in unsatisfactory system treatment efficiency and effects. Summary of the Invention

[0003] To address the aforementioned problems in the prior art, this invention provides a control method and apparatus for an ultrasonic conditioning system. The technical problem to be solved by this invention is achieved through the following technical solution:

[0004] A control method for an ultrasonic conditioning system is provided, which includes an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along a sludge recirculation process. The flow meters are arranged correspondingly to the electrode plates of the electric field array. Each group of transducers and electrode plates of the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state.

[0005] The method includes:

[0006] Every preset time interval, a sludge sample flowing into the electric field array is acquired, and the organic matter content in the sludge sample flowing into the electric field array is detected to obtain a first organic matter percentage.

[0007] An initial control code stream for the switch matrix is ​​generated based on the first percentage of organic matter, and the state of the switch matrix is ​​controlled according to the control code stream, such that the corresponding ultrasonic transducers in the ultrasonic transducer array are turned on or off to control the cavitation effect of the sludge, and / or the corresponding electrode plates in the electric field array are turned on or off to control the cell structure in the sludge to generate an electric effect, wherein the number of bits of the control code stream is determined by the number of switches in the switch matrix, and each field of the control code stream is used to characterize the first state, second state or third state of the switch matrix;

[0008] Obtain sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain a second organic matter percentage, and obtain the flow rate value of each group of flow meters;

[0009] Feedback control code stream for generating a switch matrix is ​​generated based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array according to the feedback control code stream.

[0010] In one specific implementation, generating the initial control code stream of the switch matrix based on the first organic percentage includes:

[0011] When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction.

[0012] When it is determined that the percentage of the first organic matter is less than the second threshold and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off.

[0013] When the percentage of the first organic matter is determined to be greater than the second threshold, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

[0014] In one specific embodiment, the matrix switch further has a fourth state; the feedback control code stream of the switch matrix is ​​generated based on the first organic matter percentage, the second organic matter percentage, and the flow rate value, including:

[0015] When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction.

[0016] When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

[0017] In one specific implementation, it also includes:

[0018] When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone.

[0019] When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone.

[0020] When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

[0021] In one specific embodiment, the method for detecting the organic matter content in the sludge sample flowing into the electric field array and the organic matter content in the sludge sample flowing out of the electric field array are both COD methods.

[0022] The present invention also provides a control device for an ultrasonic conditioning system, including an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along the sludge return process. The flow meters are arranged correspondingly to the electrode plates of the electric field array. Each group of transducers and electrode plates of the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state.

[0023] Also includes:

[0024] The first detection module acquires sludge samples flowing into the electric field array at preset time intervals and detects the organic matter content in the sludge samples flowing into the electric field array to obtain a first organic matter percentage.

[0025] A controller is configured to generate an initial control stream of a switch matrix based on the first percentage of organic matter, and to control the state of the switch matrix according to the control stream, such that a corresponding ultrasonic transducer in the ultrasonic transducer array is turned on or off to control the cavitation effect of the sludge, and / or a corresponding electrode plate in the electric field array is turned on or off to control the cell structure in the sludge to generate an electrodynamic effect, wherein the number of bits in the control stream is determined by the number of switches in the switch matrix, and each field of the control stream is used to characterize a first state, a second state, or a third state of the switch matrix;

[0026] The second detection module is used to acquire sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain the second organic matter percentage, and acquire the flow rate value of each group of flow meters.

[0027] Accordingly, the controller is also configured to generate a feedback control stream of the switch matrix based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array, according to the feedback control stream.

[0028] In one specific implementation, the controller is specifically used for:

[0029] When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction.

[0030] When it is determined that the percentage of the first organic matter is less than the second threshold and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off.

[0031] When the percentage of the first organic matter is determined to be greater than the second threshold, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

[0032] In one specific embodiment, the matrix switch further has a fourth state; the controller is further specifically used for:

[0033] When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction.

[0034] When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

[0035] In one specific embodiment, the controller is further configured to:

[0036] When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone.

[0037] When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone.

[0038] When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

[0039] In one specific embodiment, the method for detecting the organic matter content in the sludge sample flowing into the electric field array and the organic matter content in the sludge sample flowing out of the electric field array are both COD methods.

[0040] The beneficial effects of this invention are:

[0041] 1. The control method of the ultrasonic conditioning system of the present invention dynamically adjusts the working state of the ultrasonic transducer array according to the organic matter content in the sludge sample, which can more effectively condition the sludge based on its organic matter content. This on-demand adjustment optimizes the use of ultrasonic energy, thereby improving the degradation efficiency of organic matter. Furthermore, by detecting the organic matter content in the sludge sample flowing into the electric field array and comparing it with the organic matter content in the sludge sample flowing out of the electric field array, feedback regulation can be achieved. This mechanism can adjust the working state of the ultrasonic transducer array according to the actual situation, ensuring that the treatment effect meets expectations.

[0042] 2. The control method of the ultrasonic conditioning system of the present invention, by combining the use of electric field array and ultrasonic transducer array, can more accurately control the cell wall state of microorganisms in sludge, thereby promoting the release of intracellular substances and further improving the availability of organic matter in sludge.

[0043] 3. The control method of the ultrasonic conditioning system of the present invention can achieve a more flexible and efficient treatment method by returning the sludge from the outlet to different treatment areas according to the different organic matter content, based on the characteristics of different sludge and treatment requirements.

[0044] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0045] Figure 1 This is a schematic flowchart of a control method for an ultrasonic conditioning system provided in an embodiment of the present invention;

[0046] Figure 2 This is a block diagram of a control device module for an ultrasonic conditioning system provided in an embodiment of the present invention. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0048] Example 1

[0049] Please see Figure 1 , Figure 1 This is a schematic flowchart of a control method for an ultrasonic conditioning system provided by an embodiment of the present invention. The ultrasonic conditioning system includes an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along the sludge recirculation process. The flow meters are correspondingly arranged with the electrode plates of the electric field array. Each group of transducers and electrode plates in the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state. When electrical cable conditions permit, the ultrasonic transducer array and the electric field array in this embodiment can be integrated into the system. Alternatively, they can be independently distributed between the inlet and outlet.

[0050] The method includes:

[0051] Every preset time interval, a sludge sample flowing into the electric field array is acquired, and the organic matter content in the sludge sample flowing into the electric field array is detected to obtain a first organic matter percentage. It should be noted that the detection time varies for different methods, generally ranging from 10 minutes to several hours. Therefore, the preset time interval in this embodiment is also determined according to the detection time. For scenarios with high requirements, the time interval can be set when the previous detection is completed, while for scenarios with lower requirements, it can be appropriately delayed.

[0052] An initial control code stream for the switch matrix is ​​generated based on the first percentage of organic matter, and the state of the switch matrix is ​​controlled according to the control code stream, such that the corresponding ultrasonic transducers in the ultrasonic transducer array are turned on or off to control the cavitation effect of the sludge, and / or the corresponding electrode plates in the electric field array are turned on or off to control the cell structure in the sludge to generate an electric effect, wherein the number of bits of the control code stream is determined by the number of switches in the switch matrix, and each field of the control code stream is used to characterize the first state, second state or third state of the switch matrix;

[0053] It should be noted that when ultrasound propagates in the sludge phase, it induces alternating positive and negative pressure phases, generating pressure and tension. During the negative pressure phase, the continuous presence of negative pressure continuously generates countless tiny cavitation bubbles in the tension region. These small bubbles continuously grow larger, and then during the positive pressure phase, the pressure causes the bubbles to burst, generating shock waves (reaching 5000°C and 1000 atmospheres within microseconds). The process from bubble formation to bursting is the cavitation effect. The implosion instantaneously releases high pressure and high temperature, generating strong impact and mechanical shear forces in the area surrounding the cavity. Additionally, the high temperature decomposes water into reactive hydrogen ions and hydroxyl radicals, thereby breaking down larger particles into smaller ones to expose microbial cells. Furthermore, the sludge, through an electric field (>10,000V), can strongly compress the cell membranes of the microbial cells within it. If this compression exceeds the elastic resistance of the membrane, pores will form. Depending on the type and intensity of the electric field, an irreversible, larger pore can form, leading to cell membrane damage and ultimately cell death. When sludge flows through a high-voltage electric field channel, the cell structure is weakened and broken, which is the electrodynamic effect of the electric field.

[0054] This embodiment utilizes a combination of ultrasonic transducer array and electric field array to effectively destroy microbial cells and degrade organic matter in sludge. The cavitation effect of ultrasound and the compression effect of the electric field work synergistically. It should be noted that the parameters of the ultrasound and electric field (such as frequency, power, and voltage) need to be optimized and adjusted according to the specific characteristics of the sludge and the treatment objectives. Specifically, these parameters can be determined experimentally based on the treatment scenario.

[0055] Obtain sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain a second organic matter percentage, and obtain the flow rate value of each group of flow meters;

[0056] Feedback control code stream for generating a switch matrix is ​​generated based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array according to the feedback control code stream.

[0057] In one specific implementation, generating the initial control code stream of the switch matrix based on the first organic percentage includes:

[0058] When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction.

[0059] When it is determined that the percentage of the first organic matter is less than 50% and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off.

[0060] When the percentage of the first organic matter is determined to be greater than 50%, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

[0061] It should be noted that for optimal conditioning conditions, the percentage of organic matter is generally between 60% and 80%. In this embodiment, to improve conditioning efficiency, for example, the first threshold is set to 30% and the second threshold is set to 50%. An organic matter percentage less than 30% is considered undesirable, while a percentage greater than 50% is considered good conditioning. That is, when the organic matter percentage is less than 30%, the conditioning system needs to operate at full capacity, using a combination of ultrasonic waves and electric fields to quickly increase the organic matter content. Between 30% and 50%, to save energy, the electrode plates can be turned off, relying solely on ultrasonic waves for conditioning. When the organic matter percentage is greater than 50%, the conditioning is considered good, and no additional conditioning control is required.

[0062] In one specific embodiment, the matrix switch further has a fourth state; the feedback control code stream of the switch matrix is ​​generated based on the first organic matter percentage, the second organic matter percentage, and the flow rate value, including:

[0063] When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction.

[0064] When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

[0065] In this process, to achieve precise control, real-time data from the flow meter and the data before and after modulation are required. Furthermore, since the electrodynamic effect of the electric field is the direct cause of cell membrane damage and also the peak of organic matter release, the flow meter in this embodiment is not installed at the pipe inlet and outlet, but rather at the location of the electric field array. This allows for accurate determination of organic matter content. Because measuring organic matter content is time-consuming and costly, to save costs, only two determinations are performed, with the intermediate content determination obtained indirectly through the flow meter. Since the release of organic matter causes instantaneous changes in flow velocity, this is measured by the flow meter. A flow value deviating above a preset position on the baseline graph indicates a faster flow velocity, suggesting a decrease in organic matter release, requiring an increase in the release rate, and vice versa. In actual operation, the degree of deviation can be judged according to accuracy requirements; points with small deviations do not require state adjustment.

[0066] The control method of the ultrasonic conditioning system in this embodiment, by combining the use of an electric field array and an ultrasonic transducer array, can more accurately control the cell wall state of microorganisms in sludge, thereby promoting the release of intracellular substances and further improving the availability of organic matter in sludge.

[0067] The control method of the ultrasonic conditioning system in this embodiment dynamically adjusts the working state of the ultrasonic transducer array based on the organic matter content in the sludge sample at the inlet, enabling more effective conditioning of the sludge to address its organic matter content. This on-demand adjustment optimizes the use of ultrasonic energy, thereby improving the degradation efficiency of organic matter. Furthermore, by detecting the organic matter content in the sludge sample flowing into the electric field array and comparing it with the organic matter content in the sludge sample flowing out of the electric field array, feedback regulation can be achieved. This mechanism allows for adjustment of the ultrasonic transducer array's working state according to actual conditions, ensuring that the treatment effect meets expectations.

[0068] In one specific implementation, it also includes:

[0069] When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone.

[0070] When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone.

[0071] When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

[0072] It should be noted that whether the cycle needs to continue after the sludge is returned requires further judgment, which will not be elaborated in this embodiment. The control method of the ultrasonic conditioning system in this embodiment returns the sludge from the outlet to different treatment areas according to the different organic matter content, which can achieve a more flexible and efficient treatment method according to the characteristics of different sludge and treatment requirements.

[0073] In one specific embodiment, the methods for detecting the organic matter content in both the sludge sample flowing into and out of the electric field array are COD (Chemical Oxygen Demand) methods. Since this embodiment requires rapid detection for quick feedback and adjustment, the COD method, with its shorter detection time, is used for content detection.

[0074] This embodiment also provides a control device for an ultrasonic conditioning system; please refer to [link / reference]. Figure 2 The system includes an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along the sludge return process. The flow meter is arranged correspondingly to the electrode plate of the electric field array. Each group of transducers and electrode plates of the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state.

[0075] Also includes:

[0076] The first detection module acquires sludge samples flowing into the electric field array at preset time intervals and detects the organic matter content in the sludge samples flowing into the electric field array to obtain a first organic matter percentage.

[0077] A controller is configured to generate an initial control stream of a switch matrix based on the first percentage of organic matter, and to control the state of the switch matrix according to the control stream, such that a corresponding ultrasonic transducer in the ultrasonic transducer array is turned on or off to control the cavitation effect of the sludge, and / or a corresponding electrode plate in the electric field array is turned on or off to control the cell structure in the sludge to generate an electrodynamic effect, wherein the number of bits in the control stream is determined by the number of switches in the switch matrix, and each field of the control stream is used to characterize a first state, a second state, or a third state of the switch matrix;

[0078] The second detection module is used to acquire sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain the second organic matter percentage, and acquire the flow rate value of each group of flow meters.

[0079] Accordingly, the controller is also configured to generate a feedback control stream of the switch matrix based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array, according to the feedback control stream.

[0080] In one specific implementation, the controller is specifically used for:

[0081] When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction.

[0082] When it is determined that the percentage of the first organic matter is less than the second threshold and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off.

[0083] When the percentage of the first organic matter is determined to be greater than the second threshold, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

[0084] In one specific embodiment, the matrix switch further has a fourth state; the controller is further specifically used for:

[0085] When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction.

[0086] When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

[0087] In one specific embodiment, the controller is further configured to:

[0088] When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone.

[0089] When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone.

[0090] When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

[0091] In one specific embodiment, the method for detecting the organic matter content in the sludge sample flowing into the electric field array and the organic matter content in the sludge sample flowing out of the electric field array are both COD methods.

[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0093] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0094] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, disclosure, and appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0095] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A control method for an ultrasonic conditioning system, applied to an ultrasonic conditioning system, characterized in that, The ultrasonic conditioning system includes an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along the sludge return process. The flow meter is arranged correspondingly to the electrode plate of the electric field array. Each group of transducers and electrode plates of the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state. The method includes: Every preset time interval, a sludge sample flowing into the electric field array is acquired, and the organic matter content in the sludge sample flowing into the electric field array is detected to obtain a first organic matter percentage. An initial control code stream for the switch matrix is ​​generated based on the first percentage of organic matter, and the state of the switch matrix is ​​controlled according to the control code stream, such that the corresponding ultrasonic transducers in the ultrasonic transducer array are turned on or off to control the cavitation effect of the sludge, and / or the corresponding electrode plates in the electric field array are turned on or off to control the cell structure in the sludge to generate an electric effect, wherein the number of bits of the control code stream is determined by the number of switches in the switch matrix, and each field of the control code stream is used to characterize the first state, second state or third state of the switch matrix; Obtain sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain a second organic matter percentage, and obtain the flow rate value of each group of flow meters; Feedback control code stream for generating a switch matrix is ​​generated based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array according to the feedback control code stream.

2. The control method for the ultrasonic conditioning system according to claim 1, characterized in that, The initial control code stream for generating the switch matrix based on the first organic percentage includes: When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction. When it is determined that the percentage of the first organic matter is less than the second threshold and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off. When the percentage of the first organic matter is determined to be greater than the second threshold, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

3. The control method for the ultrasonic conditioning system according to claim 2, characterized in that, The matrix switch also has a fourth state; a feedback control code stream for the switch matrix is ​​generated based on the first organic matter percentage, the second organic matter percentage, and the flow rate value, including: When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction. When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

4. The control method for the ultrasonic conditioning system according to claim 3, characterized in that, Also includes: When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone. When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone. When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

5. The control method for the ultrasonic conditioning system according to claim 1, characterized in that, The methods for detecting the organic matter content in the sludge sample flowing into the electric field array and the organic matter content in the sludge sample flowing out of the electric field array are both COD methods.

6. A control device for an ultrasonic conditioning system, characterized in that, It includes an ultrasonic transducer array, an electric field array, and a flow meter group. The ultrasonic transducer array and the electric field array are arranged sequentially along the sludge return process. The flow meter is arranged correspondingly to the electrode plate of the electric field array. Each group of transducers and electrode plates of the ultrasonic transducer array and the electric field array is controlled by a corresponding matrix switch. Each switch in the matrix switch has a first state, a second state, and a third state. Also includes: The first detection module acquires sludge samples flowing into the electric field array at preset time intervals and detects the organic matter content in the sludge samples flowing into the electric field array to obtain a first organic matter percentage. A controller is configured to generate an initial control stream of a switch matrix based on the first percentage of organic matter, and to control the state of the switch matrix according to the control stream, such that a corresponding ultrasonic transducer in the ultrasonic transducer array is turned on or off to control the cavitation effect of the sludge, and / or a corresponding electrode plate in the electric field array is turned on or off to control the cell structure in the sludge to generate an electrodynamic effect, wherein the number of bits in the control stream is determined by the number of switches in the switch matrix, and each field of the control stream is used to characterize a first state, a second state, or a third state of the switch matrix; The second detection module is used to acquire sludge samples flowing out of the electric field array, detect the organic matter content in the sludge samples flowing out of the electric field array to obtain the second organic matter percentage, and acquire the flow rate value of each group of flow meters. Accordingly, the controller is also configured to generate a feedback control stream of the switch matrix based on the first organic percentage, the second organic percentage, and the flow rate value, so as to turn on or off the corresponding ultrasonic transducer in the ultrasonic transducer array, and / or turn on or off the corresponding electrode plate in the electric field array, according to the feedback control stream.

7. The control device for the ultrasonic conditioning system according to claim 6, characterized in that, The controller is specifically used for: When the percentage of the first organic matter is determined to be less than the first threshold, the initial control code stream controls each matrix switch in each of the switch matrices to work in the first state, where the ultrasonic transducer is turned on and the electrode plate is turned on in the forward direction. When it is determined that the percentage of the first organic matter is less than the second threshold and greater than the first threshold, the initial control code stream controls each matrix switch in the switch matrix to work in the second state, where the ultrasonic transducer is on and the electrode plate is off. When the percentage of the first organic matter is determined to be greater than the second threshold, the initial control code stream controls each matrix switch in each of the switch matrices to operate in the third state, wherein the ultrasonic transducer is off and the electrode plate is off.

8. The control device for the ultrasonic conditioning system according to claim 7, characterized in that, The matrix switch also has a fourth state; the controller is further specifically used for: When the percentage of the second organic matter is less than the first threshold, the feedback control code stream controls the adjacent matrix switches in the switch matrix to work alternately in the first state and the fourth state. The fourth state is when the ultrasonic transducer is turned on and the electrode plate is turned on in the reverse direction. When it is determined that the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the second organic matter is greater than a first threshold and less than a second threshold, a baseline diagram is obtained based on the percentage of the first organic matter and the percentage of the second organic matter. The flow rate value is mapped onto the baseline diagram based on the distance relationship between the flow meters. A state transition relationship is determined based on the degree to which the flow rate value deviates from the baseline diagram, and a feedback control code stream is generated based on the transition relationship. The state transition relationship is as follows: when the flow rate value deviates to a preset position below the baseline diagram, the first state is adjusted to the second state or the second state is adjusted to the third state; when the flow rate value deviates to a preset position above the baseline diagram, the third state is adjusted to the second state or the second state is adjusted to the first state, or the first state is adjusted to the fourth state.

9. The control device for the ultrasonic conditioning system according to claim 8, characterized in that, The controller is also specifically used for: When it is determined that the percentage of the second organic matter is less than the percentage of the first organic matter, and the percentage of the first organic matter is less than the first threshold, the sludge at the outlet is controlled to be returned to the anoxic zone. When both the percentage of the first organic matter and the percentage of the second organic matter are less than the second threshold and greater than the first threshold, the sludge at the outlet is controlled to be returned to the anaerobic zone. When the percentage of the second organic matter is greater than the percentage of the first organic matter, and the percentage of the first organic matter is greater than the second threshold, the sludge at the outlet is controlled to be returned to the aerobic zone.

10. The control device for the ultrasonic conditioning system according to claim 6, characterized in that, The methods for detecting the organic matter content in the sludge sample flowing into the electric field array and the organic matter content in the sludge sample flowing out of the electric field array are both COD methods.

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