A method, system, device and storage medium for drying tap water sludge

Abstract

The application relates to the technical field of residual mud drying, in particular to a tap water residual mud drying method, system, device and storage medium. In the application, when the electricity price is low in the low electricity consumption valley period at night, air is heated by an air source heat pump module, the drying room is used to dry residual mud through hot air, electricity is supplied, and a phase change energy storage module is controlled to store energy; when the electricity price is high in the high electricity consumption peak period in the daytime, solar heat energy is absorbed by a solar module and energy is released, heat stored in the phase change energy storage module in the low electricity consumption valley period at night is released, air is heated by the solar module and the phase change energy storage module, thereby reducing the electricity consumption in the high electricity consumption peak period and reducing the overall cost of residual mud drying.

Description

Technical Field

[0001] This application relates to the technical field of residual sludge drying, and in particular to a method, system, equipment and storage medium for drying residual sludge from tap water. Background Technology

[0002] Currently, the residual sludge from water treatment plants needs to be dried to remove moisture, reduce its volume, facilitate subsequent transportation and treatment, and prevent environmental pollution during transportation and treatment.

[0003] Traditional methods for mechanically dewatering residual sludge from municipal tap water systems typically involve centrifugation or screw presses, resulting in sludge with high moisture content and incurring high costs. Existing technologies include air-source heat pumps for sludge drying; however, due to the high moisture content of the sludge, the electricity costs during the drying process remain high, and this situation requires further improvement. Summary of the Invention

[0004] To address the high electricity costs associated with existing air-source heat pump methods for drying residual sludge, this application provides a method, system, equipment, and storage medium for drying residual sludge from tap water, employing the following technical solution:

[0005] In a first aspect, this application provides a method for drying residual sludge from tap water, applied to a tap water residual sludge drying system. The system includes a drying chamber and an air source heat pump module. The air source heat pump module is used to convert the low-grade heat energy of air into high-grade heat energy to heat the air. The drying chamber is used to dry the residual sludge from tap water using the heated air. The system also includes a solar energy module and a phase change energy storage module. The method includes the following steps:

[0006] During periods of low electricity demand, the power supply is provided and the air source heat pump module is controlled to heat the air. The first circulating fan is controlled to blow the hot air heated by the air source heat pump module to the drying chamber, so that the drying chamber dries the residual mud through the hot air. At the same time, the power supply is provided and the phase change energy storage module is controlled to store energy.

[0007] During peak electricity consumption periods, the operation of the air source heat pump module for heating air is suspended, and the solar energy module and phase change energy storage module are controlled to release energy to heat the air. The second circulating fan is controlled to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air.

[0008] By adopting the above technical solution, the system of this application includes a drying chamber, an air source heat pump module, a solar energy module, and a phase change energy storage module. Heat is transferred between the modules via air. During off-peak hours at night when electricity prices are low, the air source heat pump module heats the air, allowing the drying chamber to dry the residual mud with hot air. At the same time, power is supplied and the phase change energy storage module is controlled to store energy. During peak hours during the day when electricity prices are high, the solar energy module absorbs solar heat and releases energy to heat the air. Simultaneously, the heat stored in the phase change energy storage module during off-peak hours at night is released to heat the air, allowing the drying chamber to dry the residual mud with hot air. This reduces electricity consumption during peak hours and lowers the overall cost of drying the residual mud.

[0009] Optionally, the process of controlling the release of energy by the solar module and the phase change energy storage module specifically includes the following steps:

[0010] Obtain the current energy of the solar module and compare the current energy with a first preset energy threshold;

[0011] When the current energy is less than the first preset energy threshold, the phase change energy storage module is controlled to release energy to heat the air.

[0012] By adopting the above technical solution, this application obtains the current energy of the solar module in real time and compares it with the first preset energy threshold. When the current energy is less than the first preset energy threshold, the solar module stores less electricity. At this time, the phase change energy storage module is controlled to release energy to heat the air.

[0013] Optionally, the process of controlling the release of energy by the solar module and the phase change energy storage module specifically includes the following steps:

[0014] The current energy is compared with the second preset energy threshold.

[0015] When the current energy is greater than the second preset energy threshold, the solar module is controlled to release energy to heat the air, wherein the second preset energy threshold is greater than or equal to the first preset energy threshold.

[0016] By adopting the above technical solution, this application obtains the current energy of the solar module in real time and compares it with the second preset energy threshold. The second preset energy threshold is greater than or equal to the first preset energy threshold. When the current energy is greater than the second preset energy threshold, the solar module stores more electricity. At this time, the solar module is switched to release heat to heat the air, thereby realizing the cooperation between the solar module and the phase change energy storage module to heat the air during peak electricity consumption, so that the drying chamber can dry the residual mud through hot air.

[0017] Optionally, before obtaining the current energy of the solar module, the method further includes the following steps:

[0018] Obtain weather data for a future preset time period, and determine the power generation of the solar module for the future preset time period based on the weather data;

[0019] If the power generation is less than the first preset power generation threshold, the second preset energy threshold is increased.

[0020] If the power generation exceeds the second preset power generation threshold, the first preset energy threshold is reduced.

[0021] By adopting the above technical solution, this application obtains weather data for a future preset time period, determines the power generation of the solar module for the future preset time period based on the weather data, and then compares it with a first preset power generation threshold and a second preset power generation threshold. When the power generation is less than the first preset power generation threshold, the current power generation efficiency of the solar module is relatively slow. At this time, the second preset energy threshold is increased so that the system switches to the solar module for power supply when the current energy of the solar energy is higher. When the power generation is greater than the second preset power generation threshold, the first preset energy threshold is decreased so that the system switches to the phase change energy storage module for power supply when the current energy of the solar energy is lower.

[0022] Optionally, after supplying power and controlling the phase change energy storage module to store energy, the method further includes the following steps:

[0023] Obtain the current stored energy value of the phase change energy storage module, and stop supplying power to the phase change energy storage module when the current stored energy value is greater than the preset stored energy value.

[0024] By adopting the above technical solution, during off-peak electricity hours at night, the system obtains the current stored energy value of the phase change energy storage module. When the current stored energy value is greater than the preset stored energy value, the system stops supplying power to the phase change energy storage module, thereby saving energy.

[0025] Optionally, after stopping the supply of power to the phase change energy storage module, the method further includes the following steps:

[0026] Real-time monitoring of the weight of the remaining sludge to be dried;

[0027] When the weight change of the current sludge to be dried is detected within a first preset change range during a preset time period, it is determined that the moisture content of the current sludge to be dried is high, and the air source heat pump module, the solar energy module and the phase change energy storage module are controlled to heat the air together.

[0028] By adopting the above technical solution, this application also detects the weight of the current sludge to be dried in real time. When the weight change of the current sludge to be dried is detected within a preset time period and falls within a first preset change range, it determines that the moisture content of the current sludge to be dried is high. This allows the air source heat pump module, solar energy module, and phase change energy storage module to heat the air together, increasing the rate of air temperature rise and thus reducing the moisture content of the current sludge to be dried more quickly.

[0029] Optionally, after detecting the weight of the remaining sludge to be dried, the method further includes the following steps:

[0030] When the weight change of the current sludge to be dried is detected to be within a second preset range within a preset time period, it is determined that the current sludge to be dried has been dried. The second preset range is smaller than the first preset range.

[0031] By adopting the above technical solution, when the weight change of the remaining mud to be dried is small within a preset time period, it is determined that the drying is complete.

[0032] Secondly, this application provides a tap water residue drying system, including a drying chamber and an air source heat pump module. The drying chamber is used to dry the tap water residue, and the air source heat pump module is used to convert the low-grade heat energy of the air into high-grade heat energy. The system also includes a solar energy module and a phase change energy storage module. The system comprises:

[0033] During periods of low electricity demand, the first control module supplies power and controls the air source heat pump module to heat the air, and controls the first circulating fan to blow the heated air from the air source heat pump module to the drying chamber, so that the drying chamber dries the remaining mud through the hot air. At the same time, it supplies power and controls the phase change energy storage module to store energy.

[0034] During peak electricity consumption periods, the second control module suspends the operation of the air source heat pump module to heat the air, controls the solar energy module and the phase change energy storage module to release energy to heat the air, and controls the second circulating fan to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air.

[0035] Thirdly, this application provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the above-described method for drying residual sludge in tap water.

[0036] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method for drying residual sludge in tap water.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. During off-peak hours at night when electricity prices are low, this application heats the air using an air-source heat pump module, allowing the drying chamber to dry the excess sludge using hot air. Simultaneously, it supplies power and controls the phase change energy storage module to store energy. During peak hours at daytime when electricity prices are high, a solar energy module absorbs and releases solar heat to heat the air. At the same time, the heat stored in the phase change energy storage module during off-peak hours is released to heat the air, thereby reducing electricity consumption during peak hours and lowering the overall cost of drying the excess sludge.

[0039] 2. This application obtains weather data for a future preset time period, determines the power generation of the solar module for that time period based on the weather data, and then, when the power generation is less than a first preset power generation threshold, increases a second preset energy threshold so that the system switches to the solar module for power supply when the current solar energy is higher; when the power generation is greater than the second preset power generation threshold, decreases the first preset energy threshold so that the system switches to the phase change energy storage module for power supply when the current solar energy is lower, thereby achieving the effect of mainly using solar energy to heat the air.

[0040] 3. During off-peak electricity hours at night, when it is determined that the moisture content of the remaining sludge to be dried is high and the energy storage value of the phase change energy storage module is sufficient, this application controls the air source heat pump module, solar energy module and phase change energy storage module to heat the air together, thereby increasing the rate of air temperature rise and thus reducing the moisture content of the remaining sludge to be dried more quickly. Attached Figure Description

[0041] Figure 1 This is a connection diagram of a tap water residue drying system according to an embodiment of this application;

[0042] Figure 2 This is an exemplary flowchart of a method for drying residual sludge from tap water according to an embodiment of this application;

[0043] Figure 3 This is an exemplary flowchart of the sub-steps included in step S200 of this application;

[0044] Figure 4 This is an exemplary flowchart following step S100 in an embodiment of this application;

[0045] Figure 5 This is an internal structural diagram of the computer device according to an embodiment of this application. Detailed Implementation

[0046] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to any or all possible combinations including one or more of the listed items.

[0047] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0048] The residual sludge in tap water needs to be dried to remove moisture, reduce the volume of residual sludge, and facilitate subsequent transportation and treatment. The existing technology uses an air source heat pump to dry the residual sludge. However, due to the high water content of the residual sludge, the electricity cost for drying is relatively high.

[0049] This application provides a method, system, equipment, and storage medium for drying residual sludge from tap water. By coupling an air source heat pump module, a solar energy module, and a phase change energy storage module, the air is heated by the air source heat pump module during off-peak electricity consumption periods, and energy is stored by the phase change energy storage module. During peak electricity consumption periods, the air is heated by the solar energy module and the phase change energy storage module, thereby reducing electricity consumption during peak electricity consumption periods and lowering the overall cost of drying residual sludge.

[0050] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0051] This application provides a method executed by an electronic device, which can be a server or a terminal device. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. In this embodiment, the terminal device is a computer device, but is not limited to this; it can also be a smart tablet, computer, etc. The terminal device and the server can be directly or indirectly connected via wired or wireless communication, and this application does not impose any limitations.

[0052] Reference Figure 1 , Figure 1 This is a connection diagram of a tap water residue drying system according to an embodiment of this application.

[0053] A system for drying residual sludge from tap water includes a drying chamber, an air source heat pump module, a solar energy module, and a phase change energy storage module. The drying chamber is used to dry residual sludge from tap water. The air source heat pump module is used to convert low-grade heat energy of air into high-grade heat energy to heat the air. The solar energy module is used to absorb and store solar energy and release the stored energy when needed. The phase change energy storage module is used to store and release energy.

[0054] like Figure 1 As shown, the tap water residue drying system of this application includes a drying chamber and two air circulation systems. The first air circulation system includes an air source heat pump module, a first circulating fan, and a first dust removal and filtration device. The system supplies power to the air source heat pump module, whose compressor heats the air. The heated dry air flows through the drying chamber via the first circulating fan to dry the residue. After drying the residue, the air humidity increases and the temperature decreases, becoming humid air. This humid air also contains dust from the residue, which is filtered out by the first dust removal and filtration device. The humid air then flows back to the air source heat pump module, where it is dehumidified and heated to become dry air again, and the cycle continues.

[0055] In order to reduce the high electricity costs of drying caused by prolonged use of air source heat pumps to heat air, this application sets up a second air circulation system.

[0056] The second air circulation system includes a solar module, a phase change energy storage module, a second circulation fan, and a second dust removal device. The solar module absorbs and stores solar heat, while the phase change energy storage module stores energy through power supply. When the solar module and phase change energy storage module are operating, hot water is heated. The hot water transfers heat to the air through a heat exchanger, and the second circulation fan blows the hot air into the drying chamber to dry the remaining mud. After drying the mud, the air humidity increases and the temperature decreases, becoming humid air. This humid air also contains dust from the remaining mud, which is filtered out by the second dust removal filter. The humid air is then cooled by a water cooling device and a heat recovery device. During cooling, the air temperature decreases, increasing the saturation of moisture in the air. When the air saturation reaches a certain level, the moisture begins to condense into water droplets and is discharged, thus removing the moisture from the air and turning the humid air into dry air. The dry air flows back to the heat exchanger, which then reheats the air with hot water, and the cycle continues.

[0057] Specifically, in one embodiment, the temperature of dry hot air is set to 65°C and the humidity to 35%, the temperature of humid hot air is set to 51.3°C and the humidity to 35%, the cooling water temperature is set to 32°C, the cooling return water temperature is set to 37°C, the hot water temperature is set to 70°C, and the heated hot water temperature is set to 80°C.

[0058] Reference Figure 2 , Figure 2 This is an exemplary flowchart of a method for drying residual sludge from tap water according to an embodiment of this application.

[0059] A method for drying residual sludge in tap water, applied to a tap water residual sludge drying system, includes the following steps:

[0060] S100 During periods of low electricity demand, power is supplied and the air source heat pump module is controlled to heat the air. The first circulating fan is controlled to blow the heated air from the air source heat pump module to the drying chamber, so that the drying chamber dries the remaining mud through the hot air. At the same time, power is supplied and the phase change energy storage module is controlled to store energy.

[0061] S200: During peak electricity consumption periods, the air source heat pump module is suspended from heating the air. The solar energy module and phase change energy storage module are controlled to release energy to heat the air. The second circulating fan is controlled to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air.

[0062] The implementation principle of the tap water residue drying method in this application embodiment is as follows: During off-peak electricity hours at night, when electricity prices are low, the power supply controls the air source heat pump to operate, simultaneously supplying power to the phase change energy storage module to store energy, thereby heating the air through the first air circulation system. Then, during peak electricity hours in the daytime, when electricity prices are high, energy is released through the solar energy module and the phase change energy storage module, thereby heating the air through the second air circulation system. This achieves the effect of coupling the air source heat pump module, the solar energy module, and the phase change energy storage module, reducing the overall cost of drying residue.

[0063] In the above embodiments, during peak daytime electricity consumption, the air is heated jointly by the solar module and the phase change energy storage module. In some embodiments, the air can be heated primarily by the solar module by switching between the solar module and the phase change energy storage module. This saves energy consumption of the phase change energy storage module when solar energy is abundant, further reducing electricity costs.

[0064] Reference Figure 3 , Figure 3 This is an exemplary flowchart of the sub-steps included in step S200 of this application.

[0065] Specifically, in one embodiment, step S200 includes the following sub-steps:

[0066] S240. Obtain the current energy of the solar module and compare the current energy with the first preset energy threshold.

[0067] The current energy of the solar module refers to the energy value converted and stored by the solar energy device. The first preset energy threshold is set to one-quarter of the maximum energy stored by the solar module.

[0068] S250. When the current energy is less than the first preset energy threshold, control the phase change energy storage module to release energy to heat the air.

[0069] The system monitors the current energy of the solar module in real time and sets a first preset energy threshold. Under normal conditions, when the solar module has sufficient energy, it mainly heats the air through solar energy. Only when the current energy of the solar module is less than the first preset energy threshold will it switch to the phase change energy storage module to release energy.

[0070] S260. Compare the current energy with the second preset energy threshold.

[0071] The second preset energy threshold is three-quarters of the maximum energy stored in the solar module.

[0072] S270. When the current energy is greater than the second preset energy threshold, control the solar module to release energy to heat the air.

[0073] The second preset energy threshold is greater than or equal to the first preset energy threshold. After switching to the phase change energy storage module to release energy, it is necessary to wait until the current energy of the solar energy is higher than the second preset energy threshold before switching back to the solar module for heating, thereby avoiding the problem of switching between the solar module and the phase change energy storage module too frequently.

[0074] Understandably, the system will not switch when the current energy value of solar energy is between the first preset energy threshold and the second preset energy threshold.

[0075] In one embodiment, prior to step S210, the method further includes:

[0076] S210. Obtain weather data for a future preset time period, and determine the power generation of the solar module for the future preset time period based on the weather data.

[0077] The weather data for the future preset time period can be obtained from websites such as meteorological data networks. This application statistically analyzes historical weather data and historical power generation, then establishes a correlation function between historical weather data and historical power generation, and finally obtains the weather data for the future preset time period. The power generation for the future preset time period is then predicted using the correlation function and the weather data for the future preset time period.

[0078] S220. If the power generation is less than the first preset power generation threshold, increase the second preset energy threshold.

[0079] Specifically, the second preset energy threshold is increased to seven-eighths of the maximum energy stored in the solar module; furthermore, the first preset power generation threshold includes N levels, and the second preset energy threshold corresponding to the first preset power generation threshold of the Nth level is 4N-1 / 4N.

[0080] S230. If the power generation exceeds the second preset power generation threshold, reduce the first preset energy threshold.

[0081] Specifically, the first preset energy threshold is reduced to one-eighth of the maximum energy stored in the solar module. Furthermore, the second preset power generation threshold includes N levels, with the second preset energy threshold corresponding to the Nth level being 1 / 4N.

[0082] Specifically, when future power generation is high, the energy value of the solar module decreases more slowly under the same power consumption. Therefore, the first preset energy threshold can be appropriately lowered to further reduce the frequency of switching. Similarly, when future power generation is low, the energy value of the solar module increases more rapidly, so the second preset energy threshold can be appropriately increased.

[0083] Understandably, when the current stored energy value of the phase change energy storage module is lower than the preset minimum stored energy threshold, and the switching conditions of the solar module are not met, the air source heat pump module is activated to heat the air.

[0084] In the above embodiments, the air is heated by an air source heat pump module or by a solar energy module and a phase change energy storage module. In some embodiments, when the energy of the phase change energy storage module is high and the moisture content of the residual sludge is high, the air can be heated by the air source heat pump module, the solar energy module and the phase change energy storage module together to reduce the moisture content of the residual sludge more quickly.

[0085] Reference Figure 4 , Figure 4 This is an exemplary flowchart following step S100 in an embodiment of this application.

[0086] The steps following step S100 include the following steps:

[0087] S110, Real-time detection of the current stored energy value of the phase change energy storage module.

[0088] S120. When the current stored energy value is greater than the preset stored energy value, stop supplying power to the phase change energy storage module.

[0089] By setting a preset energy storage value, when the preset energy storage value is exceeded, it indicates that the phase change energy storage module has stored a certain amount of energy.

[0090] The method also includes the following steps:

[0091] S300: Real-time detection of the weight of the remaining sludge to be dried.

[0092] S310. If the weight change of the current sludge to be dried is detected within a preset time period and the change is within a first preset range, determine that the moisture content of the current sludge to be dried is high.

[0093] S320. If the current stored energy value of the phase change energy storage module is greater than the preset stored energy value, and the current energy value of the solar energy is greater than the second preset energy value, then control the phase change energy storage module, the solar energy module and the air source heat pump module to heat the air together.

[0094] S330. If the current stored energy value of the phase change energy storage module is less than the preset stored energy value, and the current energy value of the solar energy is greater than the second preset energy value, then control the solar energy module and the air source heat pump module to heat the air together.

[0095] S340. If the current stored energy value of the phase change energy storage module is greater than the preset stored energy value, and the current energy value of the solar module is less than the first preset energy value, then control the phase change energy storage module and the air source heat pump module to heat the air together.

[0096] S350. If the current stored energy value of the phase change energy storage module is less than the preset stored energy value, and the current energy value of the solar module is less than the first preset energy value, then increase the input power of the air source heat pump module.

[0097] The switching control between the air source heat pump module, solar energy module, and phase change energy storage module can be controlled by PLC programming.

[0098] Therefore, when the moisture content of the sludge to be dried is high, this application increases the input power of the air source heat pump module, or at least uses the air source heat pump module in conjunction with one of the solar energy module or the phase change energy storage module to heat the air, thereby reducing the moisture content of the sludge to be dried more efficiently and improving the drying efficiency.

[0099] It is understood that the moisture content of the sludge to be dried in this application is indirectly obtained by measuring the weight of the sludge to be dried. When the weight change of the sludge to be dried within the preset time period is detected to be within the second preset range, it indicates that the rate of moisture evaporation has decreased. At this time, it can be determined that the sludge to be dried has been dried.

[0100] The second preset range of variation is smaller than the first preset range of variation.

[0101] Secondly, this application provides a tap water residual sludge drying system. The tap water residual sludge drying system of this application will be described below in conjunction with the above-mentioned tap water residual sludge drying method.

[0102] A tap water residue drying system includes a drying chamber and an air source heat pump module. The drying chamber is used to dry the tap water residue, and the air source heat pump module is used to convert the low-grade heat energy of the air into high-grade heat energy. The system also includes a solar energy module and a phase change energy storage module. The system comprises:

[0103] During periods of low electricity demand, the first control module supplies power and controls the air source heat pump module to heat the air, and controls the first circulating fan to blow the heated air from the air source heat pump module to the drying chamber, so that the drying chamber dries the remaining mud through the hot air. At the same time, it supplies power and controls the phase change energy storage module to store energy.

[0104] During peak electricity consumption periods, the second control module suspends the operation of the air source heat pump module to heat the air, controls the solar energy module and the phase change energy storage module to release energy to heat the air, and controls the second circulating fan to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air.

[0105] In one embodiment, this application provides a computer device, which may be a server, and its internal structure diagram may be as follows: Figure 5 As shown, the computer device includes a processor, memory, and a network interface connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage medium. The database stores data. The network interface communicates with external terminals via a network connection. When executed by the processor, the computer program implements a method for drying residual sludge in tap water.

[0106] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0107] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0108] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0109] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A method for drying residual sludge in a waterworks, employing a waterworks residual sludge drying system, the system comprising a drying chamber and an air source heat pump module, the air source heat pump module being used to convert low-grade heat energy of air into high-grade heat energy to heat the air, and the drying chamber being used to dry the residual sludge using the heated air, characterized in that... The system also includes a solar energy module and a phase change energy storage module, and the method includes the following steps: During periods of low electricity demand, the power supply is provided and the air source heat pump module is controlled to heat the air. The first circulating fan is controlled to blow the hot air heated by the air source heat pump module to the drying chamber, so that the drying chamber dries the residual mud through the hot air. At the same time, the power supply is provided and the phase change energy storage module is controlled to store energy. During peak electricity consumption periods, the operation of the air source heat pump module for heating air is suspended, and the solar energy module and phase change energy storage module are controlled to release energy to heat the air. The second circulating fan is controlled to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air. The process of controlling the release of energy by the solar module and the phase change energy storage module specifically includes the following steps: The current energy of the solar module is obtained and compared with a first preset energy threshold, which is one-quarter of the maximum stored energy of the solar module. When the current energy is less than the first preset energy threshold, the phase change energy storage module is controlled to release energy to heat the air; The current energy is compared with a second preset energy threshold, which is three-quarters of the maximum energy stored by the solar module. When the current energy is greater than the second preset energy threshold, the solar module is controlled to release energy to heat the air; Before obtaining the current energy of the solar module, the method further includes the following steps: Obtain weather data for a future preset time period, and determine the power generation of the solar module for the future preset time period based on the weather data; If the power generation is less than the first preset power generation threshold, the second preset energy threshold is increased to seven-eighths of the maximum energy stored in the solar module. If the power generation exceeds the second preset power generation threshold, the first preset energy threshold is reduced to one-eighth of the maximum storage energy of the solar module. Real-time monitoring of the weight of the remaining sludge to be dried; When the weight change of the current sludge to be dried is detected within a first preset change range during a preset time period, it is determined that the moisture content of the current sludge to be dried is high. If the current stored energy value of the phase change energy storage module is greater than the preset stored energy value, and the current energy value of the solar energy module is greater than the second preset energy value, then the phase change energy storage module, the solar energy module, and the air source heat pump module are controlled to heat the air together. If the current stored energy value of the phase change energy storage module is less than the preset stored energy value, and the current energy value of the solar energy module is greater than the second preset energy value, then the solar energy module and the air source heat pump module are controlled to heat the air together. If the current stored energy value of the phase change energy storage module is greater than the preset stored energy value, and the current energy value of the solar module is less than the first preset energy value, then the phase change energy storage module and the air source heat pump module are controlled to heat the air together. If the current stored energy value of the phase change energy storage module is less than the preset stored energy value, and the current energy value of the solar module is less than the first preset energy value, then the input power of the air source heat pump module is increased.

2. The method for drying residual sludge in a waterworks according to claim 1, characterized in that, After supplying power and controlling the phase change energy storage module to store energy, the method further includes the following steps: Obtain the current stored energy value of the phase change energy storage module, and stop supplying power to the phase change energy storage module when the current stored energy value is greater than a preset stored energy threshold.

3. The method for drying residual sludge in a waterworks according to claim 1, characterized in that, After detecting the weight of the remaining sludge to be dried, the method further includes the following steps: When the weight change of the current sludge to be dried is detected to be within a second preset range within a preset time period, it is determined that the current sludge to be dried has been dried. The second preset range is smaller than the first preset range.

4. A system for drying residual sludge in a waterworks, comprising a drying chamber and an air source heat pump module, wherein the drying chamber is used to dry the residual sludge, and the air source heat pump module is used to convert the low-grade heat energy of air into high-grade heat energy, characterized in that... The system is used to implement the waterworks sludge drying method according to any one of claims 1-3, and the system further includes a solar energy module and a phase change energy storage module. The system comprises: During periods of low electricity demand, the first control module supplies power and controls the air source heat pump module to heat the air, and controls the first circulating fan to blow the heated air from the air source heat pump module to the drying chamber, so that the drying chamber dries the remaining mud through the hot air. At the same time, it supplies power and controls the phase change energy storage module to store energy. During peak electricity consumption periods, the second control module suspends the operation of the air source heat pump module to heat the air, controls the solar energy module and the phase change energy storage module to release energy to heat the air, and controls the second circulating fan to blow the heat-exchanged hot air to the drying chamber, so that the drying chamber dries the remaining mud through the hot air.

5. A computer device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the waterworks sludge drying method according to any one of claims 1-3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the waterworks sludge drying method as described in any one of claims 1-3.

Images