Wastewater reuse process control methods, devices, electronic equipment and storage media

By obtaining the influent conductivity of the wastewater deep reuse raw water tank and adjusting the return water volume of the pure water tank, the problem of excessive influent conductivity caused by the deterioration of crude oil properties was solved, ensuring the safe operation and stability of the wastewater reverse osmosis unit.

CN122126930APending Publication Date: 2026-06-02CHINA PETROLEUM & CHEMICAL CORP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-12-02
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The deterioration of crude oil properties leads to an increase in salt concentration in the wastewater discharged from oil refining plants, and the conductivity of the influent exceeds the standard, affecting the safe operation of the wastewater reverse osmosis unit.

Method used

By obtaining the influent conductivity of the wastewater deep reuse raw water tank, the system determines whether the wastewater reverse osmosis device is operating normally based on preset safety operation indicators. If the indicators exceed the limits, the system adjusts the return water volume of the pure water tank and uses preset formulas for calculating the return water ratio and return flow rate to adjust the influent conductivity, thereby ensuring the safe operation of the device.

Benefits of technology

Effective control of influent conductivity ensures the safe operation of the wastewater reverse osmosis unit, solves the problem of conductivity exceeding the standard due to increased salt content, and improves the operating cycle and stability of the unit.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a wastewater reuse process control method, apparatus, electronic device, and storage medium. The method includes: obtaining the influent conductivity of the wastewater deep reuse raw water tank; determining whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and a preset safe operation index; when the wastewater reverse osmosis device can operate normally, using the wastewater reverse osmosis device for wastewater reverse osmosis; when the wastewater reverse osmosis device cannot operate normally, adjusting the return water volume of the pure water tank based on a preset formula for calculating the permeate return ratio and a preset formula for calculating the permeate return flow rate, combined with the influent conductivity, to adjust the influent conductivity of the wastewater deep reuse raw water tank. This forms a wastewater reuse process control method based on influent conductivity, solving the problem of continuously deteriorating crude oil properties leading to a continuous increase in salt concentration in the discharged wastewater, causing the influent conductivity to exceed the standard.
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Description

Technical Field

[0001] This invention relates to the field of wastewater reuse technology, and in particular to a wastewater reuse process control method, apparatus, electronic equipment, and storage medium. Background Technology

[0002] In recent years, the properties of crude oil entering the plant have continued to deteriorate and become unstable, leading to a continuous increase in the salt concentration in the wastewater discharged from the oil refining production units. This has resulted in the conductivity of the influent wastewater discharged from the wastewater treatment plant exceeding the standard for salt content, seriously affecting the long-term safe and stable operation of the wastewater reverse osmosis unit.

[0003] Therefore, researching a wastewater reuse process control method based on influent conductivity to quickly and accurately control the return water volume using the wastewater reuse system is of great significance for improving the safe operation cycle of wastewater reverse osmosis units, ensuring that the wastewater reverse osmosis units are in a safe operating state, and promoting the sustainable development of wastewater reuse. Summary of the Invention

[0004] This invention provides a wastewater reuse process control method, device, electronic equipment, and storage medium to solve the problem of continuously deteriorating crude oil properties leading to a continuous increase in salt concentration in discharged wastewater and causing excessive conductivity of influent, thus laying an important foundation for the safe operation of wastewater reverse osmosis devices.

[0005] In a first aspect, the present invention provides a wastewater reuse process control method applied to a wastewater reuse system, the wastewater reuse system comprising a wastewater deep reuse raw water tank, a water reverse osmosis device, and a product water pure water tank connected in sequence; the wastewater reuse process control method includes:

[0006] S101, Obtain the influent conductivity of the wastewater deep reuse raw water tank;

[0007] S102, Based on the relationship between the influent conductivity and the preset safe operation index, determine whether the wastewater reverse osmosis device can operate normally;

[0008] S103, When the wastewater reverse osmosis device is in normal operation, wastewater reverse osmosis is performed using the wastewater reverse osmosis device;

[0009] S104, when the wastewater reverse osmosis device cannot operate normally, according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, the return water volume of the product water pure water tank is adjusted to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then the process returns to step S101.

[0010] Optionally, step S102 includes:

[0011] Determine whether the conductivity of the influent is less than the preset safe operating index;

[0012] If so, then it is confirmed that the wastewater reverse osmosis device is operating normally;

[0013] If not, then it is determined that the wastewater reverse osmosis device is not operating normally.

[0014] Optionally, step S104 includes:

[0015] When the wastewater reverse osmosis device cannot operate normally, the permeate return flow rate is calculated based on the preset permeate return ratio calculation formula and the preset permeate return flow rate calculation formula, combined with the influent conductivity.

[0016] Adjust the return water volume of the pure water tank according to the product water return flow rate, so as to adjust the inlet water conductivity of the wastewater deep reuse raw water tank;

[0017] Return to step S101.

[0018] Optionally, the product water return flow rate is calculated based on a preset formula for calculating the product water return ratio and a preset formula for calculating the product water return flow rate, combined with the influent conductivity, including:

[0019] The product water recirculation ratio is calculated based on the preset formula for calculating the product water recirculation ratio and the influent conductivity.

[0020] The influent conductivity and the product water return ratio are input into the preset product water return flow calculation formula to calculate the product water return flow rate.

[0021] Optionally, the preset formula for calculating the permeate reflux ratio is as follows:

[0022] R = (G1 - G2) ÷ G2;

[0023] The preset formula for calculating the permeate return flow rate is as follows:

[0024] Q = Q1·R;

[0025] Where R is the permeate return ratio; G1 is the influent conductivity of the wastewater reverse osmosis unit; G2 is the influent conductivity of the wastewater deep reuse raw water tank; Q is the permeate return flow rate; and Q1 is the influent flow rate of the wastewater reverse osmosis unit.

[0026] Secondly, the present invention provides a wastewater reuse process control device, comprising:

[0027] The acquisition module is used to acquire the influent conductivity of the wastewater deep reuse raw water tank;

[0028] The determination module is used to determine whether the wastewater reverse osmosis device can operate normally based on the relationship between the conductivity of the influent and the preset safe operation index.

[0029] A reverse osmosis module is used to perform wastewater reverse osmosis when the wastewater reverse osmosis device is operating normally.

[0030] The adjustment module is used to adjust the return water volume of the pure water tank according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, when the wastewater reverse osmosis device cannot operate normally. After adjusting the influent conductivity of the wastewater deep reuse raw water tank, it returns to the execution acquisition module.

[0031] Optionally, the determining module includes:

[0032] The judgment submodule is used to determine whether the conductivity of the influent is less than the preset safe operation index; if yes, the first determination submodule is executed; if no, the second determination submodule is executed.

[0033] The first determining submodule is used to determine whether the wastewater reverse osmosis device can operate normally;

[0034] The second determining submodule is used to determine that the wastewater reverse osmosis device is not operating normally.

[0035] Thirdly, the present invention provides an electronic device including a processor and a memory, the memory storing computer-readable instructions that, when executed by the processor, perform the steps of the method provided in the first aspect above.

[0036] Fourthly, the present invention provides a storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the method provided in the first aspect above.

[0037] Fifthly, the present invention provides a computer program product comprising a computer program that, when executed by a processor, performs the steps of the method provided in the first aspect above.

[0038] As can be seen from the above technical solutions, the present invention has the following advantages:

[0039] This invention provides a wastewater reuse process control method, apparatus, electronic device, and storage medium. The method includes: S101, obtaining the influent conductivity of the wastewater deep reuse raw water tank; S102, determining whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and a preset safe operation index; S103, when the wastewater reverse osmosis device can operate normally, using the wastewater reverse osmosis device to perform wastewater reverse osmosis; S104, when the wastewater reverse osmosis device cannot operate normally, adjusting the return water volume of the pure water tank according to a preset formula for calculating the permeate return ratio and a preset formula for calculating the permeate return flow rate, combined with the influent conductivity, to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then returning to step S101. This forms a wastewater reuse process control method based on influent conductivity, solving the problem of continuously deteriorating crude oil properties leading to a continuous increase in salt concentration in the discharged wastewater, causing the influent conductivity to exceed the standard, and laying an important foundation for the safe operation of the wastewater reverse osmosis device. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a flowchart illustrating the steps of a wastewater reuse process control method according to an embodiment of the present invention.

[0042] Figure 2 This is a flowchart illustrating the steps of a second embodiment of the wastewater reuse process control method of the present invention.

[0043] Figure 3 This is a structural block diagram of an embodiment of a wastewater reuse process control device according to the present invention. Detailed Implementation

[0044] This invention provides a wastewater reuse process control method, apparatus, electronic device, and storage medium to solve the problem of difficult wastewater reuse process control in abnormally high-pressure sections, laying an important foundation for the safe operation of wastewater reverse osmosis devices.

[0045] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0046] Example 1

[0047] Please see Figure 1 , Figure 1 This is a flowchart illustrating a wastewater reuse process control method according to an embodiment of the present invention, applied to a wastewater reuse system. The wastewater reuse system includes a wastewater deep reuse raw water tank, a water reverse osmosis device, and a product water pure water tank, which are connected in sequence. The wastewater reuse process control method includes:

[0048] Step S101: Obtain the influent conductivity of the wastewater deep reuse raw water tank;

[0049] This invention provides an embodiment of the invention that obtains the influent conductivity of a wastewater deep reuse raw water tank by testing the raw water tank.

[0050] Step S102: Determine whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and the preset safe operation index;

[0051] In an optional embodiment, determining whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and a preset safe operation index includes:

[0052] Determine whether the conductivity of the influent is less than the preset safe operating index;

[0053] If so, then it is confirmed that the wastewater reverse osmosis device is operating normally;

[0054] If not, then it is determined that the wastewater reverse osmosis device is not operating normally.

[0055] According to the embodiments of the present invention, the sewage reverse osmosis device can be judged to operate normally based on the relationship between the influent conductivity and the preset safety operation index. When the influent conductivity is less than the preset safety operation index, it is determined that the sewage reverse osmosis device can operate normally. When the influent conductivity is greater than or equal to the preset safety operation index, it is determined that the influent conductivity exceeds the standard and the sewage reverse osmosis device cannot operate normally.

[0056] Step S103: When the wastewater reverse osmosis device is in normal operation, wastewater reverse osmosis is performed using the wastewater reverse osmosis device;

[0057] In this embodiment of the invention, when the conductivity of the influent is detected to be less than the preset safe operating index, it is determined that the wastewater reverse osmosis device can operate normally, and the wastewater reverse osmosis device is used for wastewater reverse osmosis.

[0058] Step S104: When the wastewater reverse osmosis device cannot operate normally, according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, the return water volume of the product water pure water tank is adjusted to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then the process returns to step S101.

[0059] In an optional embodiment, when the wastewater reverse osmosis device cannot operate normally, the return water volume of the pure water tank is adjusted according to a preset formula for calculating the permeate return ratio and a preset formula for calculating the permeate return flow rate, combined with the influent conductivity, so as to adjust the influent conductivity of the wastewater deep reuse raw water tank. Then, the process returns to step S101, which includes:

[0060] When the wastewater reverse osmosis device cannot operate normally, the permeate return flow rate is calculated based on the preset permeate return ratio calculation formula and the preset permeate return flow rate calculation formula, combined with the influent conductivity.

[0061] Adjust the return water volume of the pure water tank according to the product water return flow rate, so as to adjust the inlet water conductivity of the wastewater deep reuse raw water tank;

[0062] Return to step S101.

[0063] According to the preset formula for calculating the permeate reflux ratio, the permeate reflux ratio is calculated. Then, the preset formula for calculating the permeate reflux flow rate is used to calculate the permeate reflux flow rate. Based on the permeate reflux flow rate, the return water volume of the permeate pure water tank is adjusted to adjust the inlet water conductivity of the wastewater deep reuse raw water tank, so that the adjusted inlet water conductivity is less than the preset safe operation index, thereby enabling the wastewater reverse osmosis device to be used normally.

[0064] This invention provides a wastewater reuse process control method, comprising: S101, obtaining the influent conductivity of the wastewater deep reuse raw water tank; S102, determining whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and a preset safe operation index; S103, when the wastewater reverse osmosis device can operate normally, using the wastewater reverse osmosis device for wastewater reverse osmosis; S104, when the wastewater reverse osmosis device cannot operate normally, adjusting the return water volume of the pure water tank according to a preset formula for calculating the permeate return ratio and a preset formula for calculating the permeate return flow rate, combined with the influent conductivity, to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then returning to step S101. This forms a wastewater reuse process control method based on influent conductivity, solving the problem of continuously deteriorating crude oil properties leading to a continuous increase in salt concentration in the discharged wastewater, causing the influent conductivity to exceed the standard, and laying an important foundation for the safe operation of the wastewater reverse osmosis device.

[0065] Example 2

[0066] Please see Figure 2 , Figure 2 This is a flowchart illustrating a second embodiment of the wastewater reuse process control method of the present invention, applied to a wastewater reuse system. The wastewater reuse system includes a wastewater deep reuse raw water tank, a water reverse osmosis device, and a product water pure water tank, which are connected in sequence. The steps of the wastewater reuse process control method include:

[0067] S201, Obtain the influent conductivity of the wastewater deep reuse raw water tank;

[0068] This invention provides an embodiment of the invention that obtains the influent conductivity of a wastewater deep reuse raw water tank by testing the raw water tank.

[0069] S202, determine whether the conductivity of the influent is less than the preset safe operation index; if yes, determine that the wastewater reverse osmosis device can operate normally; if no, determine that the wastewater reverse osmosis device cannot operate normally.

[0070] The present invention determines whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and the preset safety operation index. When the influent conductivity is less than the preset safety operation index, the wastewater reverse osmosis device is determined to be operating normally. When the influent conductivity is greater than or equal to the preset safety operation index, the wastewater reverse osmosis device is determined to be not operating normally.

[0071] S203, When the wastewater reverse osmosis device is in normal operation, wastewater reverse osmosis is performed using the wastewater reverse osmosis device;

[0072] In this embodiment of the invention, when it is determined that the wastewater reverse osmosis device can operate normally, the wastewater reverse osmosis device is used normally for wastewater reverse osmosis.

[0073] S204, When the wastewater reverse osmosis device cannot operate normally, the product water return flow rate is calculated according to the preset product water return ratio calculation formula and the preset product water return flow rate calculation formula, combined with the influent conductivity.

[0074] In an optional embodiment, the product water return flow rate is calculated based on a preset product water return ratio calculation formula and a preset product water return flow rate calculation formula, combined with the influent conductivity, including:

[0075] The product water recirculation ratio is calculated based on the preset formula for calculating the product water recirculation ratio and the influent conductivity.

[0076] The influent conductivity and the product water return ratio are input into the preset product water return flow calculation formula to calculate the product water return flow rate.

[0077] In this embodiment of the invention, when the wastewater reverse osmosis device cannot operate normally, the permeate reflux ratio is calculated according to the preset permeate reflux ratio calculation formula, and the permeate reflux flow rate is calculated by combining the preset permeate reflux flow rate calculation formula.

[0078] The preset formula for calculating the permeate return ratio is as follows:

[0079] R = (G1 - G2) ÷ G2;

[0080] The preset formula for calculating the permeate return flow rate is as follows:

[0081] Q = Q1·R;

[0082] Where R is the permeate return ratio; G1 is the influent conductivity of the wastewater reverse osmosis unit; G2 is the influent conductivity of the wastewater deep reuse raw water tank; Q is the permeate return flow rate; and Q1 is the influent flow rate of the wastewater reverse osmosis unit.

[0083] S205, Adjust the return water volume of the pure water tank according to the return water flow rate, so as to adjust the inlet conductivity of the wastewater deep reuse raw water tank;

[0084] In this embodiment of the invention, the return water volume of the pure water tank is adjusted so that the adjusted return water volume is equal to the return water volume of the pure water tank, thereby adjusting the influent conductivity of the wastewater deep reuse raw water tank so that the adjusted influent conductivity is less than the preset safe operation index.

[0085] S206, return to step S201;

[0086] In this embodiment of the invention, after adjusting the return water volume of the pure water tank, the process returns to step S201 to obtain the adjusted influent conductivity. The adjusted influent conductivity is compared with a preset safe operating index. If the adjusted influent conductivity is less than the preset safe operating index, a wastewater reverse osmosis device is used for wastewater reverse osmosis. If the adjusted influent conductivity is greater than or equal to the preset safe operating index, the return water volume of the pure water tank is further adjusted according to the preset pure water return ratio calculation formula and the preset pure water return flow rate calculation formula until the corresponding adjusted influent conductivity is less than the preset safe operating index.

[0087] This invention discloses a wastewater reuse process control method, comprising: S101, obtaining the influent conductivity of the wastewater deep reuse raw water tank; S102, determining whether the wastewater reverse osmosis device can operate normally based on the relationship between the influent conductivity and a preset safe operation index; S103, when the wastewater reverse osmosis device can operate normally, using the wastewater reverse osmosis device for wastewater reverse osmosis; S104, when the wastewater reverse osmosis device cannot operate normally, adjusting the return water volume of the pure water tank according to a preset formula for calculating the permeate return ratio and a preset formula for calculating the permeate return flow rate, combined with the influent conductivity, to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then returning to step S101. This method solves the problem of continuously deteriorating crude oil properties leading to a continuous increase in salt concentration in the discharged wastewater, causing the influent conductivity to exceed the standard, thus laying an important foundation for the safe operation of the wastewater reverse osmosis device. At the same time, the method is highly operable, and the process of controlling the wastewater reuse process is intuitive and clear in actual use. It can be easily promoted and applied to the detection process of track defects in heavy-haul railways.

[0088] Example 3

[0089] Please see Figure 3 , Figure 3 This is a structural block diagram of an embodiment of a wastewater reuse process control device according to the present invention, applied to a wastewater reuse system. The wastewater reuse system includes a wastewater deep reuse raw water tank, a water reverse osmosis device, and a product water pure water tank connected in sequence. The wastewater reuse process control device includes:

[0090] The acquisition module 301 is used to acquire the influent conductivity of the wastewater deep reuse raw water tank;

[0091] The determination module 302 is used to determine whether the wastewater reverse osmosis device can operate normally based on the relationship between the conductivity of the influent and the preset safe operation index.

[0092] Reverse osmosis module 303 is used to perform reverse osmosis of wastewater using the wastewater reverse osmosis device when the wastewater reverse osmosis device is operating normally;

[0093] The adjustment module 304 is used to adjust the return water volume of the pure water tank according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, when the wastewater reverse osmosis device cannot operate normally, so as to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then return to the execution acquisition module 301.

[0094] In an optional embodiment, the determining module 302 includes:

[0095] The judgment submodule is used to determine whether the conductivity of the influent is less than the preset safe operation index; if yes, the first determination submodule is executed; if no, the second determination submodule is executed.

[0096] The first determining submodule is used to determine whether the wastewater reverse osmosis device can operate normally;

[0097] The second determining submodule is used to determine that the wastewater reverse osmosis device is not operating normally.

[0098] In an optional embodiment, the adjustment module 304 includes:

[0099] The calculation submodule is used to calculate the product water return flow rate based on the preset product water return ratio calculation formula and the preset product water return flow rate calculation formula, combined with the influent conductivity, when the wastewater reverse osmosis device cannot operate normally.

[0100] The regulating submodule is used to adjust the return water volume of the pure water tank according to the return water flow rate, so as to adjust the inlet water conductivity of the wastewater deep reuse raw water tank.

[0101] Return to the submodule, which is used to return to the execution step S101.

[0102] In an optional embodiment, the computing submodule includes:

[0103] The first calculation unit is used to calculate the product water recirculation ratio based on the preset product water recirculation ratio calculation formula and the influent conductivity.

[0104] The second calculation unit is used to input the influent conductivity and the product water return ratio into the preset product water return flow calculation formula to calculate the product water return flow.

[0105] In an optional embodiment, the preset formula for calculating the permeate reflux ratio is as follows:

[0106] R = (G1 - G2) ÷ G2;

[0107] The preset formula for calculating the permeate return flow rate is as follows:

[0108] Q = Q1·R;

[0109] Where R is the permeate return ratio; G1 is the influent conductivity of the wastewater reverse osmosis unit; G2 is the influent conductivity of the wastewater deep reuse raw water tank; Q is the permeate return flow rate; and Q1 is the influent flow rate of the wastewater reverse osmosis unit.

[0110] Example 4

[0111] This invention also provides an electronic device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of a wastewater reuse process control method according to any embodiment.

[0112] Example 5

[0113] This invention also provides a computer storage medium storing a computer program thereon, which, when executed by the processor, implements the steps of a wastewater reuse process control method according to any embodiment.

[0114] Example 6

[0115] This invention also provides a computer program product on which a computer program is stored, wherein when the computer program is executed by the processor, it implements the steps of a wastewater reuse process control method according to any embodiment.

[0116] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0117] In the several embodiments provided in this application, it should be understood that the methods, apparatuses, electronic devices, and storage media disclosed in this invention can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0118] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0119] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0120] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0121] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling a wastewater reuse process, characterized in that, This is applied to a wastewater reuse system, which includes a wastewater deep reuse raw water tank, a water reverse osmosis unit, and a product pure water tank connected in sequence; the wastewater reuse process control method includes: S101, Obtain the influent conductivity of the wastewater deep reuse raw water tank; S102, Based on the relationship between the influent conductivity and the preset safe operation index, determine whether the wastewater reverse osmosis device can operate normally; S103, When the wastewater reverse osmosis device is in normal operation, wastewater reverse osmosis is performed using the wastewater reverse osmosis device; S104, when the wastewater reverse osmosis device cannot operate normally, according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, the return water volume of the product water pure water tank is adjusted to adjust the influent conductivity of the wastewater deep reuse raw water tank, and then the process returns to step S101.

2. The wastewater reuse process control method according to claim 1, characterized in that, Step S102 includes: Determine whether the conductivity of the influent is less than the preset safe operating index; If so, then it is confirmed that the wastewater reverse osmosis device is operating normally; If not, then it is determined that the wastewater reverse osmosis device is not operating normally.

3. The wastewater reuse process control method according to claim 1, characterized in that, Step S104 includes: When the wastewater reverse osmosis device cannot operate normally, the permeate return flow rate is calculated based on the preset permeate return ratio calculation formula and the preset permeate return flow rate calculation formula, combined with the influent conductivity. Based on the product water return flow rate, adjust the return water volume of the product water pure water tank to adjust the inlet water conductivity of the wastewater deep reuse raw water tank; Return to step S101.

4. The wastewater reuse process control method according to claim 3, characterized in that, Based on the preset formulas for calculating the permeate return ratio and the permeate return flow rate, and in conjunction with the influent conductivity, the permeate return flow rate is calculated, including: The product water recirculation ratio is calculated based on the preset formula for calculating the product water recirculation ratio and the influent conductivity. The influent conductivity and the product water return ratio are input into the preset product water return flow calculation formula to calculate the product water return flow rate.

5. The wastewater reuse process control method according to claim 4, characterized in that, The preset formula for calculating the permeate reflux ratio is as follows: R = (G1 - G2) ÷ G2; The preset formula for calculating the permeate return flow rate is as follows: Q = Q1·R; Where R is the permeate return ratio; G1 is the influent conductivity of the wastewater reverse osmosis unit; G2 is the influent conductivity of the wastewater deep reuse raw water tank; Q is the permeate return flow rate; and Q1 is the influent flow rate of the wastewater reverse osmosis unit.

6. A wastewater reuse process control device, characterized in that, include: The acquisition module is used to acquire the influent conductivity of the wastewater deep reuse raw water tank. The determination module is used to determine whether the wastewater reverse osmosis device can operate normally based on the relationship between the conductivity of the influent and the preset safe operation index. A reverse osmosis module is used to perform wastewater reverse osmosis when the wastewater reverse osmosis device is operating normally. The adjustment module is used to adjust the return water volume of the pure water tank according to the preset formula for calculating the product water return ratio and the preset formula for calculating the product water return flow rate, combined with the influent conductivity, when the wastewater reverse osmosis device cannot operate normally. After adjusting the influent conductivity of the wastewater deep reuse raw water tank, it returns to the execution acquisition module.

7. The wastewater reuse process control method according to claim 6, characterized in that, The determining module includes: The judgment submodule is used to determine whether the conductivity of the influent is less than the preset safe operation index; if yes, the first determination submodule is executed; if no, the second determination submodule is executed. The first determining submodule is used to determine whether the wastewater reverse osmosis device can operate normally; The second determining submodule is used to determine that the wastewater reverse osmosis device is not operating normally.

8. An electronic device, characterized in that, It includes a processor and a memory, the memory storing computer-readable instructions that, when executed by the processor, perform the method as described in any one of claims 1-5.

9. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it performs the method as described in any one of claims 1-5.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1-5.