Concrete crack repairing device and method based on microbial repairing

Abstract

The invention relates to the technical field of engineering repair, in particular to a concrete crack repair device and method based on microbial repair. The heating chamber of the concrete crack repairing device is constructed to adjust the heating power of the heating sheet by utilizing the temperature control system, and temperature control management is carried out on the bacterial liquid storage cabin. And the magnetic stirring device at the bottom of the liquid mixing cabin is configured to adjust the stirring speed of the mixed liquid by utilizing a stirring controller. And a pressure sensor is arranged at the gun head of the injection assembly. The control system is configured to integrally optimize the temperature control management of the temperature control system on the bacterial liquid storage cabin, optimize the adjustment of the stirring controller on the stirring speed and optimize the adjustment of the injection controller on the injection speed and pressure by monitoring the temperature sensor, the liquid concentration and viscosity sensor and the pressure sensor in real time respectively. According to the concrete crack repairing device based on microbial repairing, the problems that the temperature of bacterial liquid is difficult to control, and the bacterial liquid and cementing liquid are not uniformly mixed are solved, and efficient repairing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering repair, and particularly relates to a concrete crack repair device and a repair method based on microbial repair. Background Art

[0002] In the field of engineering construction, due to the influence of various factors such as temperature stress and dry shrinkage stress, cracks often appear in concrete structures. If these cracks are not repaired in time, they will further expand, affecting the safety and service life of the structure. For the cracks on the concrete structure, microbial repair of concrete cracks is adopted in the prior art. Among them, microbial repair technology usually selects microorganisms that can produce minerals such as calcium carbonate, such as Bacillus.

[0003] The above-mentioned microorganisms have the characteristics of alkali resistance and can survive in harsh environments such as concrete pores. During the metabolism process, some alkaline substances will be produced, increasing the pH value of the surrounding environment. For example, urease-producing bacteria decompose urea into ammonia and carbon dioxide through urease, and the accumulation of ammonia will make the local environment alkaline. Under alkaline conditions, calcium ions in the concrete pores will combine with carbonate ions produced by microorganisms to form calcium carbonate precipitation.

[0004] With the continuous accumulation of calcium carbonate precipitation, a dense sediment gradually forms in the concrete cracks. These sediments fill the crack space, repair the pores and cracks inside the concrete at the microscopic level, prevent the intrusion of moisture, oxygen and other harmful ions, thereby improving the durability and impermeability of the concrete, and restoring the integrity and mechanical properties of the concrete structure.

[0005] After retrieval, a device for repairing bridge cracks using microorganisms is disclosed in the Chinese patent document CN220246709U. The device has two liquid storage bags, a liquid infusion pipe, a reaction pipe and a paste plate. The bacterial liquid and nutrient mixture in the two liquid storage bags flow into the reaction pipe through the liquid infusion pipe and enter the cracks through the liquid discharge holes.

[0006] However, in the actual use process of the above device, the reaction pipe only plays the role of providing a mixing place, and cannot fully mix the bacterial liquid and the nutrient mixture. Moreover, temperature has a great influence on the activity of microorganisms. Controlling the temperature of the bacterial liquid during the repair process can improve the efficiency of calcium carbonate precipitation, but this device does not take this into account. In addition, allowing the repair liquid to spontaneously flow into the cracks through the liquid discharge holes on the cracks can only repair the surface of the cracks, and it is difficult to ensure the repair effect on the inside of the cracks. Summary of the Invention

[0007] In view of the above technical problems, the first aspect of the present invention proposes a concrete crack repair device based on microbial repair, including a cementing liquid storage tank, a bacterial liquid storage tank, a liquid mixing tank, an injection assembly and a control system integrated on a box body in sequence; A heating chamber is provided outside the bacterial liquid storage tank. A temperature sensor is provided at the bacterial liquid storage tank. The heating chamber is configured to adjust the heating power of the heating element by using a temperature control system to implement temperature control management for the bacterial liquid storage tank. The liquid mixing tank is respectively connected to the cementing liquid storage tank and the bacterial liquid storage tank, and is used to accommodate the mixed liquid of the cementing liquid and the bacterial liquid. A liquid concentration and viscosity sensor is provided in the liquid mixing tank. A magnetic stirring device is provided at the bottom of the liquid mixing tank. The magnetic stirring device is configured to adjust the stirring speed of the mixed liquid by using a stirring controller. A pressure sensor is provided at the tip of the injection assembly. The injection assembly is configured to control a power pump by using an injection controller to spray the mixed liquid in the liquid mixing tank through an injection gun onto the position to be repaired of the concrete structure. The control system is configured to optimize the temperature control management of the bacterial liquid storage tank by the temperature control system, optimize the adjustment of the stirring speed by the stirring controller, and optimize the adjustment of the injection speed and pressure by the injection controller by respectively and real-time monitoring the temperature sensor, the liquid concentration and viscosity sensor, and the pressure sensor.

[0008] Preferably, the control system optimizes the temperature control management of the bacterial liquid storage tank by the temperature control system through real-time monitoring of the temperature sensor. The temperature prediction algorithm based on deep learning includes predicting the change trend of the bacterial liquid temperature through historical temperature data, and automatically adjusting the heating power of the heating element by the temperature control system to ensure that the temperature of the bacterial liquid in the bacterial liquid storage tank is always within the optimal activity range.

[0009] Preferably, the control system dynamically adjusts the stirring speed and stirring time of the magnetic stirring device based on a hybrid optimization algorithm by real-time monitoring of the liquid concentration and viscosity sensor to ensure the full mixing of the bacterial liquid and the cementing liquid.

[0010] Preferably, the control system optimizes the injection controller based on an adaptive injection control algorithm by real-time monitoring of the pressure sensor. The adaptive injection control algorithm includes real-time monitoring of the injection pressure of the injection gun by the pressure sensor, and automatically adjusting the injection speed and pressure according to the width and depth of the crack to ensure the uniform distribution and efficient filling of the repair liquid in the crack.

[0011] Preferably, the control system is connected to a mobile terminal through a wireless communication module. The control system is configured to monitor the repair process in real time through the mobile terminal and adjust the working parameters of the device.

[0012] Preferably, the concrete crack repair device based on microbial remediation proposed by the present invention further includes a power supply module, which includes a lithium battery and a solar charging panel. The lithium battery is located inside the box body to provide power support for the device, and the solar charging panel is located on the top of the box body to charge the lithium battery.

[0013] Preferably, the cementing liquid storage tank and the bacterial liquid storage tank have the same size and are arranged side by side on the top of the liquid mixing tank.

[0014] Preferably, the magnetic stirring device includes an electric motor, a connecting rod, a magnet and a stirring rotor. The connecting rod is connected to the rotating shaft of the electric motor. There is a groove at each end of the connecting rod, and the magnet is embedded in the groove. The stirring rotor is arranged in the liquid mixing tank, and the electric motor drives the stirring rotor to rotate in the liquid mixing tank through the magnetic force of the magnet.

[0015] The second aspect of the present invention also proposes a repair method using the above-mentioned concrete crack repair device based on microbial remediation, which includes the following steps: The control system continuously and real-time monitors the data of the temperature sensor, the liquid concentration and viscosity sensor, and the pressure sensor. According to the monitoring data, it overall optimizes the temperature control management of the bacterial liquid storage tank by the temperature control system to ensure the activity of the bacterial liquid, optimizes the adjustment of the stirring speed by the stirring controller to ensure the quality of the mixed liquid, and optimizes the adjustment of the injection speed and pressure by the injection controller to ensure that the mixed liquid can effectively fill the cracks; Among them, the temperature sensor real-time monitors the temperature in the bacterial liquid storage tank and transmits the data to the control system. The control system adjusts the heating power of the heating sheet in the heating chamber through the temperature control system according to the set temperature range. When the temperature is lower than the set lower limit, the heating power is increased; when the temperature is higher than the set upper limit, the heating power is decreased to ensure that the bacterial liquid survives and maintains its activity in a suitable temperature environment; Open the valves connecting the cementing liquid storage tank and the liquid mixing tank, and the bacterial liquid storage tank and the liquid mixing tank, so that the cementing liquid and the bacterial liquid flow into the liquid mixing tank. The liquid concentration and viscosity sensor real-time monitors the concentration and viscosity of the mixed liquid and feeds back the data to the control system. The control system adjusts the stirring speed of the magnetic stirring device through the stirring controller according to the received concentration and viscosity data. When the concentration of the mixed liquid is uneven or the viscosity is too high, the stirring speed is increased; when the mixed liquid is close to uniform and the viscosity is appropriate, the stirring speed is decreased to obtain a uniform mixed liquid that meets the repair requirements; Align the nozzle of the injection component with the position of the crack to be repaired in the concrete structure. The pressure sensor monitors the pressure at the injection nozzle in real time and transmits the data to the control system. The control system controls the operation of the power pump through the injection controller according to the set pressure and speed parameters, as well as the data feedback from the pressure sensor. When the pressure is too low, increase the power of the power pump to increase the injection pressure. When the pressure is too high, reduce the power of the power pump so that the mixed liquid is evenly sprayed onto the position of the crack to be repaired at an appropriate speed and pressure.

[0016] Compared with the prior art, a concrete crack repair device and repair method based on microbial repair provided by the present invention have the following prominent substantial features and remarkable progress: The concrete crack repair device based on microbial repair integrates a cementitious liquid storage tank, a bacterial liquid storage tank, a liquid mixing tank, an injection component and a control system on the box body in sequence to form an integrated structure. Only by operating uniformly in the control system can the whole process from the storage, mixing of the bacterial liquid and the cementitious liquid to the injection repair be completed coherently, greatly improving the work efficiency, reducing the operation difficulty and the error probability. A greenhouse is arranged outside the bacterial liquid storage tank of the device, and a temperature sensor and a temperature control system are equipped. The temperature of the bacterial liquid is monitored in real time by the temperature sensor, and the temperature control system accurately adjusts the heating power of the heating sheet so that the bacterial liquid is always in a temperature environment suitable for survival and maintaining activity, ensuring that microorganisms can fully play their roles in the repair process and significantly improving the stability and reliability of the repair effect. With the liquid concentration and viscosity sensors arranged in the liquid mixing tank and a magnetic stirring device equipped at the bottom, the sensors feedback the data of the mixed liquid in real time, and the control system flexibly adjusts the stirring speed through the stirring controller accordingly, making the concentration of the mixed liquid uniform and the viscosity meet the requirements of different crack repairs, greatly enhancing the adaptability of the repair material to complex crack conditions. Combined with the pressure sensor arranged at the nozzle of the injection component of the device, the power pump is controlled by the injection controller, the injection pressure is monitored in real time by the pressure sensor, and the control system accurately adjusts the injection speed and pressure according to the set parameters and the feedback data, ensuring that the mixed liquid can be evenly, stably and moderately injected into the crack, effectively avoiding repair defects and significantly improving the quality of concrete crack repair. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the internal structure of a concrete crack repair device based on microbial repair in an embodiment of the present invention.

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of a concrete crack repair device based on microbial repair in an embodiment of the present invention.

[0019] Figure 3 is a schematic diagram of the structure of the magnetic stirring device in an embodiment of the present invention.

[0020] Figure 4It is a schematic diagram of the assembly structure of the injection gun in the embodiment of the present invention.

[0021] Reference numerals: 1, telescopic handle; 2, universal wheel; 3, hook; 4, cementitious liquid storage tank; 5, bacterial liquid storage tank; 6, graphene heating sheet; 7, temperature sensor; 8, liquid mixing tank; 9, magnetic stirring device; 10, peristaltic pump; 11, injection gun; 12, stirring bar; 13, input end peristaltic pump tube; 14, output end peristaltic pump tube; 15, lithium battery; 16, solar charging panel; 17, first ventilation opening; 18, cementitious liquid filling port; 19, first rubber plug; 20, first connecting pipe; 21, second metal rod; 22, first pull ring; 23, temperature control system; 24, first metal rod; 25, graphene heating sheet switch; 26, second pull ring; 27, suspension strap; 28, second rubber plug; 29, second connecting pipe; 30, second ventilation opening; 31, greenhouse; 32, bacterial liquid filling port; 33, magnetic stirring device switch; 34, gun head; 35, peristaltic pump switch; 36, electric motor; 37, connecting rod; 38, magnet; 39, rotating shaft; 40, handle; 41, stirring controller; 42, injection controller; 43, liquid concentration and viscosity sensor; 44, pressure sensor; 45, wireless communication module. Detailed implementation manners

[0022] The following describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0023] In the embodiment of the present invention, a concrete crack repair device based on microbial remediation is proposed, aiming to solve the problems of difficult temperature control of the bacterial liquid, uneven mixing of the bacterial liquid and the cementitious liquid, and achieving efficient repair.

[0024] A concrete crack repair device based on microbial remediation proposed in the embodiment of the present invention, from the storage of the bacterial liquid, temperature control, mixing optimization to injection control, each module realizes collaborative work through intelligent algorithms and sensors, forming an intelligent repair process. Through the collaborative work of each module, the repair efficiency and effect can be improved, manual intervention can be reduced, and the microbial remediation technology can be promoted to develop in the direction of intelligence and automation.

[0025] Using a graphene heating sheet to heat the bacterial liquid storage tank has the characteristics of fast heating speed, high efficiency, and low energy consumption. Compared with traditional heating methods, the graphene heating sheet can transfer heat more evenly, ensuring that the temperature of the bacterial liquid quickly reaches the optimal activity range. Predict the temperature change of the bacterial liquid through a deep learning algorithm and automatically adjust the heating power. This intelligent temperature control method can accurately maintain the optimal activity temperature of the bacterial liquid, overcoming the defect of lack of temperature control in traditional repair devices.

[0026] Through the combination of an electric motor, a magnet, and a magnetic stirrer, efficient mixing of the bacterial liquid and the cementing liquid is achieved. The magnetic pole design of the magnetic stirrer enables rapid rotation through magnetic drive, ensuring the uniformity of the mixed liquid. The mixing controller uses a mixing optimization algorithm to monitor the concentration and viscosity of the mixed liquid in real time and dynamically adjusts the stirring speed and time. This intelligent mixing control method can ensure the full mixing of the bacterial liquid and the cementing liquid, improve the uniformity and stability of the mixed liquid, and enhance the repair effect.

[0027] The injection controller monitors the injection pressure in real time through a pressure sensor and automatically adjusts the injection speed and pressure according to the width and depth of the crack. This adaptive control method can ensure the uniform distribution of the repair liquid in the crack, overcome the deficiency of the traditional technology that only relies on gravity to flow into the crack, achieve precise injection of the repair liquid, and enhance the internal repair ability of the crack. Embodiment

[0028] As Figure 1 shown, a concrete crack repair device based on microbial repair includes a cementing liquid storage tank 4, a bacterial liquid storage tank 5, a liquid mixing tank 8, an injection assembly, and a control system that are sequentially integrated on a box body.

[0029] A heating chamber 31 is arranged outside the bacterial liquid storage tank 5. A temperature sensor 7 is arranged at the bacterial liquid storage tank 5. The heating chamber 31 is configured to regulate the heating power of the heating sheet using a temperature control system 23 to implement temperature control management for the bacterial liquid storage tank 5.

[0030] The liquid mixing tank 8 is respectively connected to the cementing liquid storage tank 4 and the bacterial liquid storage tank 5 and is used to hold the mixed liquid of the cementing liquid and the bacterial liquid. A liquid concentration and viscosity sensor 43 is arranged inside the liquid mixing tank 8. A magnetic stirring device 9 is arranged at the bottom of the liquid mixing tank 8. The magnetic stirring device 9 is configured to adjust the stirring speed of the mixed liquid using a stirring controller 41.

[0031] A pressure sensor 44 is arranged at the gun head 34 of the injection assembly. The injection assembly is configured to control a power pump using an injection controller 42 to spray the mixed liquid in the liquid mixing tank 8 onto the position to be repaired of the concrete structure through an injection gun 11.

[0032] The control system is configured to optimize the temperature control management of the bacterial liquid storage tank 5 by the temperature control system 23, optimize the adjustment of the stirring speed by the stirring controller 41, and optimize the adjustment of the injection speed and pressure by the injection controller 42 by respectively monitoring the temperature sensor 7, the liquid concentration and viscosity sensor 43, and the pressure sensor 44 in real time.

[0033] Among them, the control system optimizes the temperature control management of the bacterial liquid storage tank 5 by the temperature control system 23 based on the temperature prediction algorithm of deep learning through real-time monitoring of the temperature sensor 7. The temperature prediction algorithm of deep learning includes predicting the change trend of the bacterial liquid temperature through historical temperature data, and automatically adjusting the heating power of the heating sheet by the temperature control system 23 to ensure that the temperature of the bacterial liquid in the bacterial liquid storage tank 5 is always within the optimal activity range.

[0034] Traditional temperature control methods are mostly based on fixed thresholds or simple empirical adjustments, making it difficult to accurately respond to the complex and changeable situation of the bacterial liquid temperature. With the help of the temperature prediction algorithm of deep learning, it can deeply analyze a large amount of historical temperature data and capture the subtle temperature change patterns and rules therein. It can not only monitor the current temperature of the bacterial liquid in real time, but also accurately predict the change trend of the bacterial liquid temperature in the short term. For example, when the external environmental temperature suddenly fluctuates, the algorithm can predict the trend of the bacterial liquid temperature in advance, allowing the temperature control system 23 to adjust the heating sheet power in advance, so that the bacterial liquid temperature is always stable within a very small fluctuation range of the optimal activity range.

[0035] Moreover, the on-site environment for concrete crack repair work is often complex and diverse. Factors such as heat sources, ventilation conditions, and day-night temperature differences at the construction site will all affect the temperature of the bacterial liquid storage tank 5. The deep learning algorithm has strong learning and adaptation capabilities. As more historical temperature data collected under different complex environments increases, the algorithm can continuously optimize its own model and accurately adapt to various complex and changeable environmental conditions. No matter how the external environment changes, it can effectively adjust the temperature control system 23 by accurately predicting the temperature trend, ensuring the stability of the temperature in the bacterial liquid storage tank 5, and ensuring that the microbial repair work is not interfered by the environment and proceeds smoothly.

[0036] For example, the long short-term memory network (LSTM) is selected as the temperature prediction algorithm of deep learning. In the bacterial liquid temperature control scenario of the concrete crack repair device, LSTM can use the chronological relationship between historical temperature data points to predict the change trend of the bacterial liquid temperature. For example, collecting the hourly bacterial liquid temperature data in the past week as the training set, the LSTM network can predict the bacterial liquid temperature in the next few hours by learning the patterns in these data. It can capture the change rules of the bacterial liquid temperature at different times of the day. For example, during the day, due to the increase in environmental temperature, the bacterial liquid temperature also rises, and it gradually decreases at night. Even under the interference of external environmental factors, LSTM can also accurately predict the bacterial liquid temperature based on the previous temperature change trend and long-term memory information, providing a basis for the temperature control system 23 to adjust the heating sheet power in advance.

[0037] The control system dynamically adjusts the stirring speed and stirring time of the magnetic stirring device 9 based on the hybrid optimization algorithm by real-time monitoring of the liquid concentration and viscosity sensor 43 to ensure the full mixing of the bacterial liquid and the cementing liquid.

[0038] Traditional stirring methods usually adopt fixed stirring speeds and times, making it difficult to ensure that the bacterial liquid and the cementing liquid can be fully mixed under various working conditions. Based on the hybrid optimization algorithm, the control system can dynamically adjust the stirring speed and time according to the data real-time feedback from the liquid concentration and viscosity sensors 43. When the sensors detect that the concentration of the mixed liquid is uneven or the viscosity is too high, the algorithm will automatically increase the stirring speed and appropriately extend the stirring time to make the bacterial liquid and the cementing liquid fully blend. For example, when dealing with high-viscosity cementing liquid, the algorithm can accurately and gradually increase the stirring speed, starting from a low speed to avoid liquid splashing, and then to high-speed stirring to promote full mixing, ultimately obtaining a uniform and stable mixed liquid, providing a high-performance repair material for concrete crack repair and greatly improving the reliability of the repair effect.

[0039] For example, in a concrete crack repair device, after the control system obtains the data from the liquid concentration and viscosity sensors 43, it first uses the genetic algorithm for preliminary search. The genetic algorithm simulates the biological evolution process, encodes the stirring speed and stirring time as genes, and forms possible combinations of stirring parameters. Through genetic operations such as selection, crossover, and mutation, it quickly searches for the better region in the solution space. For example, set the stirring speed range to 100 - 1000 revolutions per minute and the stirring time range to 1 - 10 minutes, and randomly generate the initial population. In the calculation of the fitness function, the quality of each individual is evaluated according to the uniformity of the concentration and viscosity of the mixed liquid. As the genetic iteration progresses, the population gradually approaches the better solution. When the genetic algorithm converges to a certain extent, the simulated annealing algorithm is introduced. The simulated annealing algorithm is based on the physical annealing process and conducts local search near the current better solution. It accepts inferior solutions with a certain probability to avoid falling into local optima. For example, at a certain moment, the stirring speed corresponding to the current optimal solution is 500 revolutions per minute and the stirring time is 5 minutes. The simulated annealing algorithm will randomly generate a new solution near this solution, such as the stirring speed becomes 520 revolutions per minute and the stirring time becomes 4.8 minutes. If the new solution improves the uniformity of the mixed liquid, the new solution is accepted; if the new solution becomes worse, it will also be accepted with a certain probability, and this probability gradually decreases as the algorithm iterates. In this way, the stirring parameters are further optimized to ensure the full mixing of the bacterial liquid and the cementing liquid.

[0040] The control system optimizes the injection controller 42 based on the adaptive injection control algorithm by real-time monitoring of the pressure sensor 44. The adaptive injection control algorithm includes real-time monitoring of the injection pressure of the injection gun 11 through the pressure sensor 44, and automatically adjusting the injection speed and pressure according to the width and depth of the crack to ensure the uniform distribution and efficient filling of the repair liquid in the crack.

[0041] Traditional injection methods often use fixed injection speeds and pressures, making it difficult to adapt to cracks of different widths and depths. The adaptive injection control algorithm can precisely adjust the injection speed and pressure based on the injection pressure feedback from the pressure sensor in real time, as well as the width and depth information of the crack. For wider and deeper cracks, the algorithm automatically increases the injection pressure and speed to ensure that the repair fluid can quickly and fully fill the deep part of the crack; for narrow cracks, it reduces the injection pressure and speed to prevent the repair fluid from overflowing due to excessive pressure and ensure that the repair fluid is evenly distributed in the crack. This greatly improves the bonding effect between the repair fluid and the crack wall, effectively enhances the strength and durability of the repaired part, and significantly improves the repair quality of concrete cracks. The concrete cracks in actual engineering vary in shape, with complex changes in width and depth. The adaptive injection control algorithm has strong adaptability. Whether facing regular or irregular cracks, it can quickly adjust the injection parameters through real-time monitoring and calculation. For example, when encountering a crack with a width varying between a few millimeters and more than ten millimeters and different depths, the algorithm can dynamically change the injection speed and pressure according to the actual parameters at each position of the crack, enabling the repair fluid to achieve uniform and efficient filling along the entire length of the crack, overcoming the limitations of traditional injection methods in dealing with complex cracks and expanding the application range of concrete crack repair devices.

[0042] For example, in concrete crack repair, a mathematical model describing the injection process of the repair fluid is first established. This model needs to consider the width and depth of the crack, the viscosity of the repair fluid, and the relationship between injection pressure and speed. For example, assuming the crack width is w, the depth is d, the viscosity of the repair fluid is u, the injection pressure is P, and the injection speed is v, an approximate model is obtained through experimental data or theoretical derivation: v = f(P, w, d, u).

[0043] The pressure sensor 44 monitors the injection pressure P of the injection gun 11 in real time real . The control system uses the established model to predict the filling situation of the repair fluid in the crack at different injection speeds in the next period of time based on the current pressure value and the width and depth information of the crack. For example, predict the distribution state of the repair fluid in the crack within the next 5 seconds if the injection speed is increased by 10% under the current crack parameters.

[0044] By optimizing an objective function, such as maximizing the filling uniformity of the repair fluid in the crack and minimizing the injection time, the optimal injection speed and pressure at the current moment are determined. Assume that the filling uniformity can be represented by a function U(v, P), and the injection time is T(v, P). The objective function can be defined as J = -αU(v, P) - βT(v, P) (where α and β are weight coefficients, adjusted according to actual requirements). Through continuous iterative optimization, the injection speed and pressure are adjusted in real time to ensure the uniform distribution and efficient filling of the repair fluid in the crack.

[0045] According to some preferred embodiments of the present invention, the control system is connected to the mobile terminal through the wireless communication module 45. The control system is configured to monitor the repair process in real time through the mobile terminal and adjust the working parameters of the device.

[0046] In this way, after the mobile terminal is connected to the control system, various data during the repair process, such as temperature, pressure, liquid concentration at different times, etc., can be stored in the mobile terminal in real time or uploaded to the cloud server. These rich data provide strong support for subsequent analysis. Technicians can review the data after the repair work is completed and analyze the impact of different parameter settings on the repair effect. For example, by comparing the repair quality corresponding to different injection pressures and speeds for different cracks under the same repair material, the best parameter combination can be summarized, providing valuable experience for future similar projects, which helps to continuously optimize the repair process and improve the overall level of concrete crack repair.

[0047] As Figure 2 shown, the concrete crack repair device based on microbial repair proposed by the present invention further includes a power supply module. The power supply module includes a lithium battery 15 and a solar charging panel 16. The lithium battery 15 is located inside the box body to provide power support for the device, and the solar charging panel 16 is located on the top of the box body to charge the lithium battery 15.

[0048] The lithium battery 15 is located inside the box body to provide a stable power output, getting rid of the bondage of external power cables. Construction workers can freely move the device to any position where cracks need to be repaired without worrying about the cable length limit or finding a suitable power outlet.

[0049] At the same time, the solar charging panel 16 automatically charges the lithium battery 15, eliminating the need for manual frequent battery replacement or finding an external power source for charging operations. For example, when repairing cracks at high places in large buildings, the operator can easily move the device to the corresponding position, rely on the power of the lithium battery 15 to drive the device to work, and during this period, the solar charging panel 16 continuously replenishes the power of the lithium battery 15 to ensure the long-term stable operation of the device, greatly improving the convenience and flexibility of construction. Embodiment

[0050] In Embodiment 2 of the present invention, a concrete crack repair device based on microbial remediation stores the bacterial liquid and the cementing liquid in the bacterial liquid storage tank 5 and the cementing liquid storage tank 4 respectively. The heating power of the graphene heating sheet 6 in the heating chamber 31 is controlled by the temperature control system 23 to heat the bacterial liquid. The temperature sensor 7 in the bacterial liquid storage tank 5 can monitor the temperature of the bacterial liquid and transmit the temperature to the temperature control system 23. When the appropriate temperature is reached, the pistons in the two storage tanks are pulled out, and the bacterial liquid and the cementing liquid enter the liquid mixing tank 8. The stirring controller 41 uses a mixing optimization algorithm to dynamically adjust the stirring speed and stirring time of the magnetic stirring device 9 by real-time monitoring the concentration and viscosity of the mixed liquid, so that the bacterial liquid and the cementing liquid are fully mixed. The mixed liquid is pumped to the injection gun 11 through the peristaltic pump 10. The injection controller 42 uses an adaptive injection control algorithm to real-time monitor the injection pressure of the injection gun 11 through the pressure sensor 44, and automatically adjusts the injection speed and pressure according to the width and depth of the crack to ensure the uniform distribution and efficient filling of the repair liquid in the crack.

[0051] As Figure 1 - Figure 2 shown, a concrete crack repair device based on microbial remediation includes an intelligent control box body, a liquid storage and bacterial liquid heating module, a mixing and injection module, a power supply module, and an intelligent monitoring system.

[0052] As Figure 1 - Figure 2 shown, a retractable handle 1 is provided at the top of the box body, universal wheels 2 are provided at the four corners of the bottom, and hooks 3 are provided on the side.

[0053] As Figure 1 shown, the liquid storage and bacterial liquid heating module includes a cementing liquid storage tank 4, a bacterial liquid storage tank 5, a graphene heating sheet 6, and a temperature control system 23. The cementing liquid storage tank 4 and the bacterial liquid storage tank 5 have the same size and are arranged side by side in the upper layer of the box body interior. The graphene heating sheet 6 is attached to the left and right sides of the heating chamber 31 surrounding the bacterial liquid storage tank 5. The temperature control system 23 predicts the temperature change of the bacterial liquid through a deep learning algorithm and automatically adjusts the heating power of the graphene heating sheet 6.

[0054] As Figure 1 shown, the mixing and injection module includes a liquid mixing tank 8, a magnetic stirring device 9, a peristaltic pump 10, and an injection gun 11. A stirring bar 12 is provided inside the liquid mixing tank 8. The magnetic stirring device 9 is located below the liquid mixing tank 8 and is connected to the stirring controller 41 to adjust the stirring speed through a mixing optimization algorithm. The peristaltic pump 10 is connected to the injection controller 42. The peristaltic pump 10 is connected to the liquid mixing tank 8 through the input peristaltic pump tube 13 and is located below the magnetic stirring device 9. The injection gun 11 is connected to the peristaltic pump 10 through the output peristaltic pump tube 14.

[0055] As Figure 1As shown in the figure, the power supply module includes a lithium battery 15 and a solar charging panel 16. The lithium battery 15 is located inside the box body and provides power support for the graphene heating sheet 6, the temperature control system 23, the magnetic stirring device 9, the stirring controller 41, the peristaltic pump 10, and the injection controller 42. The solar charging panel 16 is located on the top of the box body and charges the lithium battery 15.

[0056] As Figure 1 - Figure 2 shown in the figure, a first ventilation opening 17 and a cementing liquid filling port 18 are provided at the top of the cementing liquid storage tank 4. The setting of the first ventilation opening 17 can ensure the air pressure balance inside and outside the tank body. A cementing liquid outlet is provided at the bottom of the cementing liquid storage tank 4. The lower part of the cementing liquid outlet is connected to the liquid mixing tank 8 by a first connecting pipe 20. A first rubber plug 19 is provided at the cementing liquid outlet to block the cementing liquid outlet. The upper part of the rubber plug is connected by a first metal rod 24, which leads directly to the top of the cementing liquid storage tank 4. A first pull ring 22 is provided at the top of the first metal rod 24. The setting of the rubber plug can store the cementing liquid well in the tank body, and the first pull ring 22 at the top of the first metal rod 24 can easily pull out the rubber plug.

[0057] As Figure 1 - Figure 2 shown in the figure, a second ventilation opening 30 and a bacterial liquid filling port 32 are provided at the top of the bacterial liquid storage tank 5. The setting of the second ventilation opening 30 can not only ensure the air pressure balance inside and outside the tank body, but also provide oxygen for microorganisms to ensure the activity of microorganisms. A bacterial liquid outlet is provided at the bottom. The lower part of the bacterial liquid outlet is connected to the liquid mixing tank 8 by a second connecting pipe 29 passing through the greenhouse 31. A second rubber plug 28 is provided at the bacterial liquid outlet to block the bacterial liquid outlet. The upper part of the second rubber plug 28 is connected by a second metal rod 21, which leads directly to the top of the bacterial liquid storage tank 5. A second pull ring 26 is provided at the top of the second metal rod 21. The bacterial liquid storage tank 5 is surrounded by the greenhouse 31. Graphene heating sheets 6 are provided on the left and right sides of the greenhouse 31. With such a setting, the temperature of the bacterial liquid can quickly reach the appropriate temperature. On the one hand, the activity of microorganisms can be quickly restored. On the other hand, the waiting time can be reduced and the repair efficiency can be improved.

[0058] As Figure 1 shown in the figure, the temperature control system 23 adopts a temperature prediction algorithm based on deep learning. Through historical temperature data, it predicts the temperature change trend of the bacterial liquid and automatically adjusts the heating power of the graphene heating sheet 6 to ensure that the temperature of the bacterial liquid is always within the optimal activity range.

[0059] As Figure 3As shown, the magnetic stirring device 9 is composed of an electric motor 36, a connecting rod 37, and magnets 38. The rotating shaft 39 of the electric motor 36 is connected to the connecting rod 37. There is a groove at each end of the connecting rod 37, and two magnets 38 are respectively placed in the grooves. The magnets 38 are placed in such a way that the N pole of one magnet faces upward and the S pole of the other magnet faces upward. The stirrer 12 is slender, with an N pole at one end and an S pole at the other end. With such a setting, the stirrer 12 is driven to rotate by the magnets 38 on the connecting rod 37, realizing the full mixing of the bacterial liquid and the cementing liquid, improving the binding probability between the microorganisms and the cementing liquid, thereby generating more calcium carbonate precipitation and improving the repair efficiency. The stirring controller 41 uses a hybrid optimization algorithm to dynamically adjust the stirring speed and stirring time of the magnetic stirring device 9 by real-time monitoring the concentration and viscosity of the mixed liquid, ensuring the full mixing of the bacterial liquid and the cementing liquid.

[0060] As Figure 4 shown, the injection controller 42 uses an adaptive injection control algorithm to real-time monitor the injection pressure of the injection gun 11 through the pressure sensor 44, and automatically adjusts the injection speed and pressure according to the width and depth of the crack, ensuring the uniform distribution and efficient filling of the repair liquid in the crack. A peristaltic pump switch 35 is provided on the handle 40 of the injection gun 11, and a suspension strap 27 is provided on the injection gun 11, which can be suspended on the hook 3 on the side of the box body. With such a setting, the peristaltic pump can be turned on or off as needed. Turning on the peristaltic pump switch 35 can achieve automatic injection, which not only saves the cumbersome process of pushing and pulling injection with an ordinary syringe, but also has a more uniform injection speed, a simpler injection method, and a higher injection efficiency.

[0061] As Figure 1 - Figure 2 shown, the lithium battery position 15 is on the right side of the box body. A graphene heating sheet switch 25 and a magnetic stirring device switch 33 are provided below the lithium battery 15, and the solar charging panel 16 is located on the top of the box body.

[0062] The control system is connected to the mobile terminal through the wireless communication module 45. The user can real-time monitor the repair process through the mobile terminal and adjust the working parameters of the device.

[0063] When using the microbial concrete crack repair device based on intelligent algorithms proposed in the embodiment of the present invention, the following steps are included: Liquid perfusion: Tighten the rubber plugs in the cementing liquid storage tank 4 and the bacterial liquid storage tank 5, and then inject the prepared cementing liquid and the bacterial liquid stored at low temperature into the cementing liquid perfusion port 18 and the bacterial liquid perfusion port 32 respectively. Heating the bacterial liquid: Turn on the graphene heating sheet switch 25. The temperature control system 23 predicts the temperature change of the bacterial liquid through a deep learning algorithm and automatically adjusts the heating power to ensure that the temperature of the bacterial liquid reaches the optimal activity range. Prepare the repair liquid, remove the rubber plugs in the cementing liquid storage chamber 4 and the bacterial liquid storage chamber 5, let the bacterial liquid and the cementing liquid enter the liquid mixing chamber 8, turn on the magnetic stirrer switch 33, and the stirring controller 41 uses the mixing optimization algorithm to monitor the concentration and viscosity of the mixed liquid in real time, and dynamically adjust the stirring speed and stirring time of the magnetic stirring device 9 to ensure that the bacterial liquid and the cementing liquid are fully mixed; To repair the crack, turn on the peristaltic pump switch 35 on the injection gun, and the injection controller 42 uses an adaptive injection control algorithm to monitor the injection pressure in real time through the pressure sensor 44, and automatically adjusts the injection speed and pressure according to the width and depth of the crack to ensure uniform distribution of the repair liquid in the crack; After the cleaning device and the repair work are completed, water is poured into the cementing liquid storage chamber 4 and the bacterial liquid storage chamber 5, and the water flows into the liquid mixing chamber 8, and after being stirred, it is pumped to the injection gun 11 through the peristaltic pump 10 for discharge. Example

[0064] In Example 3 of the present invention, a repair method using the above-mentioned concrete crack repair device based on microbial repair is proposed, comprising the following steps: The control system continuously monitors the data of the temperature sensor 7, the liquid concentration and viscosity sensor 43 and the pressure sensor 44 in real time. According to the monitoring data, the temperature control system 23 is optimized for the temperature control management of the bacterial liquid storage chamber 5 as a whole to ensure the activity of the bacterial liquid, the stirring controller 41 is optimized for adjusting the stirring speed to ensure the quality of the mixed liquid, and the injection controller 42 is optimized for adjusting the injection speed and pressure to ensure that the mixed liquid can effectively fill the cracks.

[0065] The temperature sensor 7 monitors the temperature in the bacterial liquid storage cabin 5 in real time and transmits the data to the control system. The control system adjusts the heating power of the heating plate in the heating chamber 31 through the temperature control system 23 according to the set temperature range. When the temperature is lower than the set lower limit, the heating power is increased; when the temperature is higher than the set upper limit, the heating power is reduced to ensure that the bacterial liquid survives and remains active in a suitable temperature environment.

[0066] Open the valves connecting the binder liquid storage tank 4 and the liquid mixing tank 8, and the bacteria liquid storage tank 5 and the liquid mixing tank 8 to allow the binder liquid and the bacteria liquid to flow into the liquid mixing tank 8. The liquid concentration and viscosity sensor 43 monitors the concentration and viscosity of the mixed liquid in real time, and feeds the data back to the control system. The control system adjusts the stirring speed of the magnetic stirring device 9 through the stirring controller 41 according to the received concentration and viscosity data. When the concentration of the mixed liquid is uneven or the viscosity is too high, the stirring speed is increased; when the mixed liquid is close to uniform and the viscosity is appropriate, the stirring speed is reduced to obtain a uniform mixed liquid that meets the repair requirements.

[0067] Align the nozzle 34 of the injection component with the position of the crack to be repaired in the concrete structure. The pressure sensor 44 monitors the pressure at the injection nozzle 34 in real time and transmits the data to the control system. The control system controls the operation of the power pump through the injection controller 42 according to the set pressure and speed parameters and the data feedback by the pressure sensor 44. When the pressure is too low, increase the power of the power pump to increase the injection pressure. When the pressure is too high, reduce the power of the power pump so that the mixed liquid is evenly sprayed onto the position of the crack to be repaired at a suitable speed and pressure.

[0068] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention can also have other implementation manners. For those skilled in the art, any technical solutions formed by making any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A concrete crack repair device based on microbial repair, characterized in that: It includes a cementing liquid storage chamber, a bacterial liquid storage chamber, a liquid mixing chamber, an injection assembly and a control system which are sequentially integrated on the box body; A heating chamber is arranged outside the bacterial liquid storage chamber, a temperature sensor is arranged at the bacterial liquid storage chamber, and the heating chamber is configured to adjust the heating power of the heating plate by a temperature control system to implement temperature control management on the bacterial liquid storage chamber; The liquid mixing chamber is connected to the cementing liquid storage chamber and the bacterial liquid storage chamber respectively, and is used to contain a mixture of the cementing liquid and the bacterial liquid. A liquid concentration and viscosity sensor is arranged in the liquid mixing chamber, and a magnetic stirring device is arranged at the bottom of the liquid mixing chamber. The magnetic stirring device is configured to adjust the stirring speed of the mixed liquid by using a stirring controller. A pressure sensor is provided at the gun head of the injection assembly, and the injection assembly is configured to use an injection controller to control a power pump to spray the mixed liquid in the liquid mixing chamber to the position to be repaired of the concrete structure through the injection gun; The control system is configured to respectively monitor the temperature sensor, the liquid concentration and viscosity sensor, and the pressure sensor in real time, thereby optimizing the temperature control management of the bacterial liquid storage chamber by the temperature control system, optimizing the adjustment of the stirring speed by the stirring controller, and optimizing the adjustment of the injection speed and pressure by the injection controller.

2. The concrete crack repair device based on microbial repair according to claim 1 is characterized in that: The control system monitors the temperature sensor in real time and optimizes the temperature control management of the bacteria liquid storage chamber by the temperature control system based on a temperature prediction algorithm based on deep learning. The temperature prediction algorithm based on deep learning includes predicting the temperature change trend of the bacteria liquid through historical temperature data, and automatically adjusting the heating power of the heating plate through the temperature control system to ensure that the temperature of the bacteria liquid in the bacteria liquid storage chamber is always within the optimal activity range.

3. The concrete crack repair device based on microbial repair according to claim 1 is characterized in that: The control system monitors the liquid concentration and viscosity sensor in real time, and dynamically adjusts the stirring speed and stirring time of the magnetic stirring device based on the mixing optimization algorithm to ensure sufficient mixing of the bacterial liquid and the cementing liquid.

4. The concrete crack repair device based on microbial repair according to claim 1 is characterized in that: The control system optimizes the injection controller based on an adaptive injection control algorithm by real-time monitoring of the pressure sensor. The adaptive injection control algorithm includes real-time monitoring of the injection pressure of the injection gun through the pressure sensor, and automatically adjusting the injection speed and pressure according to the width and depth of the crack to ensure uniform distribution and efficient filling of the repair fluid in the crack.

5. The concrete crack repair device based on microbial repair according to any one of claims 1 to 4, characterized in that: The control system is connected to the mobile terminal via a wireless communication module, and the control system is configured to monitor the repair process in real time via the mobile terminal and adjust the working parameters of the device.

6. The concrete crack repair device based on microbial repair according to claim 5 is characterized in that: It also includes a power supply module, which includes a lithium battery and a solar charging panel. The lithium battery is located inside the box to provide power support for the device, and the solar charging panel is located on the top of the box to charge the lithium battery.

7. The concrete crack repair device based on microbial repair according to claim 5 is characterized in that: The cementing liquid storage tank and the bacterial liquid storage tank have the same size and are arranged side by side on the top of the liquid mixing tank.

8. The concrete crack repairing device based on microbial repair according to claim 5 is characterized in that: The magnetic stirring device includes an electric motor, a connecting rod, a magnet and a stirring rotor. The connecting rod is connected to the rotating shaft of the electric motor. There is a groove at each end of the connecting rod. The magnet is embedded in the groove. The stirring rotor is arranged in the liquid mixing chamber. The electric motor drives the stirring rotor to rotate in the liquid mixing chamber through the magnetic force of the magnet.

9. A repair method of a concrete crack repair device based on microbial repair, characterized in that: The steps include: The control system continuously monitors the data of temperature sensors, liquid concentration and viscosity sensors, and pressure sensors in real time. Based on the monitoring data, the temperature control system optimizes the temperature control management of the bacterial liquid storage tank as a whole to ensure the activity of the bacterial liquid, optimizes the adjustment of the stirring speed by the stirring controller to ensure the quality of the mixed liquid, and optimizes the adjustment of the injection speed and pressure by the injection controller to ensure that the mixed liquid can effectively fill the cracks. The temperature sensor monitors the temperature in the bacterial liquid storage cabin in real time and transmits the data to the control system. The control system adjusts the heating power of the heating plate in the heating chamber through the temperature control system according to the set temperature range. When the temperature is lower than the set lower limit, the heating power is increased; when the temperature is higher than the set upper limit, the heating power is reduced to ensure that the bacterial liquid survives and remains active in a suitable temperature environment. Open the valves connecting the cementing liquid storage tank and the liquid mixing tank, and the bacterial liquid storage tank and the liquid mixing tank, so that the cementing liquid and the bacterial liquid flow into the liquid mixing tank. The liquid concentration and viscosity sensor monitors the concentration and viscosity of the mixed liquid in real time, and feeds the data back to the control system. The control system adjusts the stirring speed of the magnetic stirring device through the stirring controller according to the received concentration and viscosity data. When the concentration of the mixed liquid is uneven or the viscosity is too high, the stirring speed is increased; when the mixed liquid is close to being uniform and the viscosity is appropriate, the stirring speed is reduced to obtain a uniform mixed liquid that meets the repair requirements; Aim the gun head of the injection assembly at the position of the crack to be repaired in the concrete structure. The pressure sensor monitors the pressure at the injection gun head in real time and transmits the data to the control system. The control system controls the operation of the power pump through the injection controller according to the set pressure and speed parameters and the data fed back by the pressure sensor. When the pressure is too low, the power of the power pump is increased to increase the injection pressure; when the pressure is too high, the power of the power pump is reduced so that the mixed liquid can be evenly sprayed to the crack to be repaired at an appropriate speed and pressure.

10. The repair method of the concrete crack repair device based on microbial repair according to claim 9, characterized in that: The control system is connected to the mobile terminal via a wireless communication module, and the control system is configured to monitor the repair process in real time via the mobile terminal and adjust the working parameters of the device.

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