Anti-seepage treatment method for cooling tower pool wall

Abstract

The invention provides an anti-seepage treatment method for a cooling tower pool wall, and relates to the technical field of cooling towers. The anti-seepage treatment method for the cooling tower pool wall specifically comprises the following steps: S1, bionic substrate treatment; s2, an intelligent induction waterproof layer; s3, laying a bionic self-repairing waterproof film; s4, an intelligent sensing and feedback system; s5, carrying out bionic super-hydrophobic surface treatment; and S6, composite sealing treatment. According to the anti-seepage treatment method for the pool wall of the cooling tower, the excellent anti-seepage effect can be achieved, the basic waterproof performance is provided through bionic substrate treatment and the nano coating, the durability and the self-repairing capacity of the waterproof layer are ensured through the intelligent sensing waterproof layer and the self-repairing film, real-time monitoring and maintenance are achieved through the intelligent sensing and feedback system, and the anti-seepage effect of the pool wall of the cooling tower is improved. The brand-new anti-seepage treatment method greatly improves the anti-seepage effect of the cooling tower pool wall and prolongs the service life of the cooling tower pool wall.

Description

Technical Field

[0001] The invention relates to the technical field of cooling towers, in particular to an anti-seepage treatment method for a cooling tower pool wall. Background Art

[0002] The cooling tower pool wall is a structural component at the bottom of the cooling tower, mainly used to store cooling water. These pool walls are usually made of concrete or other waterproof materials, and their main function is to ensure that water does not leak into the ground or the surrounding environment. It is very important to carry out anti-seepage treatment on the cooling tower pool wall because if the cooling tower pool wall is not treated with anti-seepage treatment, the stored water may leak due to cracks or holes, resulting in a waste of water resources. Water leakage may also erode the concrete structure, reduce the stability and life of the structure, thereby increasing maintenance costs and potential safety risks. Untreated water may carry chemicals, minerals or other materials, which may cause harm to the environment if they leak into the soil or groundwater. Therefore, by using appropriate waterproof materials and technologies to carry out anti-seepage treatment on the cooling tower pool wall, the above problems can be effectively solved to ensure the efficient and stable operation of the cooling system and the safety of the environment.

[0003] The existing anti-seepage treatment method for cooling tower pool wall adopts traditional waterproof coatings such as asphalt-based coatings, polyurethane coatings, etc., which are covered on the pool wall surface by brushing, rolling or spraying. Its waterproof performance is limited and it is easy to fail due to physical damage or aging. It has no self-repairing ability and requires frequent maintenance and repair. The waterproof effect is greatly affected by the coating thickness and construction quality. Or waterproof rolls, such as PVC rolls, EPDM rubber rolls, etc., are laid on the pool wall surface, and laid by adhesives or mechanical fixing methods. However, the joint treatment is complicated and prone to leakage problems. It is susceptible to mechanical damage and requires regular inspection and maintenance. The construction is difficult and requires professional operation. Or the cement-based penetrating crystallization material is brushed or sprayed on the pool wall surface. The active chemicals in the material penetrate into the concrete and react with the free calcium inside to form insoluble crystals to prevent water penetration. However, the waterproof effect is greatly affected by the quality of concrete. The scope of application is limited, and it is mainly suitable for new concrete structures. It is ineffective for large cracks and needs to be used in conjunction with other waterproofing measures. Or use special equipment to spray polyurea waterproof coating on the surface of the pool wall to form a continuous seamless waterproof layer. The construction equipment and technology requirements are high and the cost is high. Strict requirements for substrate treatment, uneven substrate or improper treatment will affect the waterproof effect. Lack of self-repair ability, regular maintenance is required.

[0004] Therefore, the present invention proposes a method for anti-seepage treatment of a cooling tower pool wall to solve the above-mentioned problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an anti-seepage treatment method for a cooling tower pool wall, which solves the problems that the prior treatment method requires long-term maintenance, is high in cost, and has poor construction quality.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for anti-seepage treatment of a cooling tower pool wall, specifically comprising the following steps:

[0007] S1. Bionic substrate treatment

[0008] Computer-aided design software was used to create 3D models with microscopic bionic structures that could mimic the microscopic bumps and depressions on the surface of lotus leaves. The designed bionic structures were directly printed onto the cooling tower pool wall using a 3D printer. The printing material was silicon oxide-based ceramics, and then siloxane-based coatings were evenly sprayed onto the surface of the bionic structures.

[0009] S2. Intelligent sensing waterproof layer

[0010] The nickel-titanium alloy is prepared into microparticles by mechanical grinding to ensure uniform particle size, the microparticles are cleaned and dried to remove oxides and impurities on the surface to prepare shape memory alloy microparticles, the polyurethane-based shape memory polymer is dissolved in an acetone solvent to prepare a uniform polymer solution, and then a proper amount of dispersant and thickener are added to adjust the viscosity and fluidity of the solution to prepare a shape memory polymer solution, the prepared shape memory alloy microparticles are gradually added to the shape memory polymer solution, stirred evenly to ensure uniform dispersion of the microparticles, a proper amount of stabilizer is added to prevent the microparticles from settling in the coating, and finally an intelligent sensing waterproof layer is prepared, and then the intelligent sensing waterproof layer is applied to cover all areas of the pool wall;

[0011] S3. Bionic self-repairing waterproof membrane laying

[0012] The polysiloxane is dissolved in the solvent toluene to prepare a uniform polymer solution, the silicon dioxide is prepared into nanoparticles by chemical precipitation, sol-gel method or mechanical grinding method to ensure that the size of the nanoparticles is uniform and controlled within the range of 20-100 nanometers, the nanoparticles are surface treated with a coupling agent silane coupling agent to improve their compatibility with the polymer matrix, the nanoparticles are dried after the surface treatment, the treated nanoparticles are gradually added to the polymer solution, and ultrasonic oscillation or high-speed agitator is used for dispersion to ensure that the nanoparticles are evenly distributed, and appropriate amounts of plasticizers and cross-linking agents are added as needed to adjust the mechanical properties and self-healing ability of the composite material, the mixture is fully stirred, and then a degassing treatment is performed to remove the bubbles in the mixture to finally prepare the composite material, and then the composite material is laid on the bottom of the pool wall;

[0013] S4. Intelligent sensing and feedback system

[0014] Sensors are embedded in key locations on the pool wall. These sensors are humidity sensors, stress sensors, and temperature sensors. The sensors transmit the collected data to the central control system in real time through wireless transmission modules. The central control system analyzes the sensor data in real time, automatically issues an alarm when leakage is detected, and initiates a repair mechanism.

[0015] S5. Bionic super-hydrophobic surface treatment

[0016] The bionic super-hydrophobic nano-coating selects nano-silica or fluorine-containing polymer coating, and then uses a spraying device to evenly spray the bionic super-hydrophobic nano-coating on the surface of the pool wall to ensure complete coverage;

[0017] S6. Composite sealing treatment

[0018] Use a multi-layer composite sealing material, including a flexible polymer layer and a high-strength nanofiber layer, to ensure the sealing of all joints and edges. Apply the composite sealing material evenly along the edges and joints of the pool wall, and compact and smooth it with special tools.

[0019] Preferably, the computer-aided design software used in the bionic substrate treatment in step S1 is any one of CAD, 3dsmax, Rhinocero, and SolidWorks.

[0020] Preferably, before the bionic substrate treatment in step S1, dust, oil stains, and loose particle impurities on the pool wall surface need to be removed to ensure the surface is clean, and cement mortar or repair materials are used to fill cracks and holes on the pool wall surface to ensure the surface is smooth.

[0021] Preferably, the proportion of raw materials used in the preparation of the smart sensing waterproof layer in step S2 is: 20-30 parts of nickel-titanium alloy, 65-75 parts of polyurethane-based shape memory polymer, 1-3 parts of dispersant, 1-2 parts of thickener, and 0.5-1 part of stabilizer. The smart sensing waterproof layer is applied twice, with a thickness of 0.3 mm to 0.5 mm once, and after drying, the second thickness is 0.3 mm to 0.5 mm.

[0022] Preferably, in the step S3 of laying the bionic self-repairing waterproof membrane, the waterproof membrane is gradually pasted from the bottom of the pool wall to ensure that the membrane fits tightly to the pool wall with an overlapping portion of at least 10 cm, and the waterproof membrane is compacted using special equipment to ensure that there are no bubbles and gaps.

[0023] Preferably, the specific ratio of the bionic self-repairing waterproof membrane in the laying of the bionic self-repairing waterproof membrane in step S3 is: 60 parts to 80 parts of polymer matrix polysiloxane, 20 parts to 40 parts of nanoparticle silica, 5 parts to 30 parts of solvent toluene, 0.5 parts to 1 parts of coupling agent silane coupling agent, 1 parts to 2 parts of plasticizer dibutyl phthalate, and 0.5 parts to 1 parts of cross-linking agent dicyandiamide.

[0024] Preferably, in the composite sealing treatment of step S6, the flexible polymer layer is a polyurethane elastomer with a thickness of 0.5 mm to 2 mm, and the high-strength nanofiber layer is a carbon nanofiber with a thickness of 0.1 mm to 0.5 mm.

[0025] The present invention provides a method for anti-seepage treatment of cooling tower pool wall. It has the following beneficial effects:

[0026] The present invention provides an anti-seepage treatment method for a cooling tower pool wall. The present invention imitates the microstructure of the surface of a lotus leaf in nature through a bionic structure, and combines nano-coating materials to significantly improve the hydrophobicity of the pool wall surface, making it difficult for water droplets to adhere and penetrate. The super-hydrophobicity and anti-pollution ability of the nano-coating enable the surface to maintain a waterproof effect for a long time and is not easily covered by dirt and sediments. The intelligent sensing waterproof coating can automatically adjust its microstructure when the temperature or pressure changes, enhance the waterproof performance, and maintain excellent waterproof effects under different environmental conditions. The bionic self-repairing waterproof membrane has high elasticity and self-repairing ability, can quickly self-repair when physically damaged, and extend the service life of the waterproof layer. The intelligent sensor embedded in the pool wall can monitor the state and leakage of the waterproof layer in real time to ensure the integrity of the waterproof layer. When the system detects leakage, it automatically issues an early warning and starts a repair mechanism to quickly solve the problem and reduce maintenance costs and time. The multi-layer composite sealing material includes a flexible polymer layer and a high-strength nanofiber layer to ensure the sealing performance of the pool wall joints and edges to prevent leakage. The high strength of the composite material The waterproof layer has good strength and weather resistance, which enables it to resist various environmental stresses such as ultraviolet rays, chemical corrosion and mechanical wear, and maintain long-term stability. The application of self-repair function and intelligent maintenance system reduces the frequency of manual inspection and maintenance, and reduces maintenance costs. The durability and self-repair ability of the waterproof layer significantly extend the service life of the cooling tower pool wall and reduce the frequency and cost of overall replacement. From substrate treatment, intelligent coating to composite sealing layer, it provides all-round anti-seepage protection to ensure the efficient operation of the pool wall in various complex environments. Through the integration of intelligent sensing and feedback systems, real-time monitoring and automatic maintenance of the waterproof layer are realized, and the comprehensive performance of the system is improved. The anti-seepage treatment method for the cooling tower pool wall of the present invention significantly improves the performance of the waterproof layer by combining bionic technology, intelligent materials and modern monitoring technology. Its high-efficiency waterproofing, self-repairing ability, real-time monitoring, durability, economy and environmental protection make it show excellent comprehensive advantages in practical applications. This new anti-seepage treatment method not only improves the anti-seepage effect and service life of the cooling tower pool wall, but also greatly reduces maintenance costs and environmental impacts. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] The embodiment of the present invention provides a method for anti-seepage treatment of a cooling tower pool wall, which specifically comprises the following steps:

[0030] S1. Bionic substrate treatment

[0031] Computer-aided design software was used to create 3D models with microscopic bionic structures that could mimic the microscopic bumps and depressions on the surface of lotus leaves. The designed bionic structures were directly printed onto the cooling tower pool wall using a 3D printer. The printing material was silicon oxide-based ceramics, and then siloxane-based coatings were evenly sprayed onto the surface of the bionic structures.

[0032] S2. Intelligent sensing waterproof layer

[0033] The nickel-titanium alloy is prepared into microparticles by mechanical grinding to ensure uniform particle size, the microparticles are cleaned and dried to remove oxides and impurities on the surface to prepare shape memory alloy microparticles, the polyurethane-based shape memory polymer is dissolved in an acetone solvent to prepare a uniform polymer solution, and then a proper amount of dispersant and thickener are added to adjust the viscosity and fluidity of the solution to prepare a shape memory polymer solution, the prepared shape memory alloy microparticles are gradually added to the shape memory polymer solution, stirred evenly to ensure uniform dispersion of the microparticles, a proper amount of stabilizer is added to prevent the microparticles from settling in the coating, and finally an intelligent sensing waterproof layer is prepared, and then the intelligent sensing waterproof layer is applied to cover all areas of the pool wall;

[0034] S3. Bionic self-repairing waterproof membrane laying

[0035] The polysiloxane is dissolved in the solvent toluene to prepare a uniform polymer solution, the silicon dioxide is prepared into nanoparticles by chemical precipitation, sol-gel method or mechanical grinding method to ensure that the size of the nanoparticles is uniform and controlled within the range of 20-100 nanometers, the nanoparticles are surface treated with a coupling agent silane coupling agent to improve their compatibility with the polymer matrix, the nanoparticles are dried after the surface treatment, the treated nanoparticles are gradually added to the polymer solution, and ultrasonic oscillation or high-speed agitator is used for dispersion to ensure that the nanoparticles are evenly distributed, and appropriate amounts of plasticizers and cross-linking agents are added as needed to adjust the mechanical properties and self-healing ability of the composite material, the mixture is fully stirred, and then a degassing treatment is performed to remove the bubbles in the mixture to finally prepare the composite material, and then the composite material is laid on the bottom of the pool wall;

[0036] S4. Intelligent sensing and feedback system

[0037] Sensors are embedded in key locations on the pool wall. These sensors are humidity sensors, stress sensors, and temperature sensors. The sensors transmit the collected data to the central control system in real time through wireless transmission modules. The central control system analyzes the sensor data in real time, automatically issues an alarm when leakage is detected, and initiates a repair mechanism.

[0038] S5. Bionic super-hydrophobic surface treatment

[0039] The bionic super-hydrophobic nano-coating selects nano-silica or fluorine-containing polymer coating, and then uses a spraying device to evenly spray the bionic super-hydrophobic nano-coating on the surface of the pool wall to ensure complete coverage;

[0040] S6. Composite sealing treatment

[0041] Use a multi-layer composite sealing material, including a flexible polymer layer and a high-strength nanofiber layer, to ensure the sealing of all joints and edges. Apply the composite sealing material evenly along the edges and joints of the pool wall, and compact and smooth it with special tools.

[0042] The computer-aided design software used in step S1 bionic substrate processing is CAD.

[0043] Step S1 Before bionic substrate treatment, dust, oil stains, and loose particle impurities on the pool wall surface must be removed to ensure the surface is clean, and cement mortar or repair materials must be used to fill cracks and holes on the pool wall surface to ensure a smooth surface.

[0044] In step S2, the proportion of raw materials used in the preparation of the intelligent sensing waterproof layer is: 20 parts of nickel-titanium alloy, 65 parts of polyurethane-based shape memory polymer, 1 part of dispersant, 1 part of thickener, and 0.5 parts of stabilizer. The intelligent sensing waterproof layer is applied twice, with a thickness of 0.3 mm once. After drying, the second thickness is 0.3 mm.

[0045] In step S3, during the laying of the bionic self-repairing waterproof membrane, the waterproof membrane is gradually pasted starting from the bottom of the pool wall to ensure that the membrane fits tightly to the pool wall with an overlap of at least 10 cm. Special equipment is used to compact the waterproof membrane to ensure that there are no bubbles or gaps.

[0046] In step S3, the specific proportions of the bionic self-repairing waterproof membrane in the laying of the bionic self-repairing waterproof membrane are: 60 parts of polymer matrix polysiloxane, 20 parts of nanoparticle silica, 5 parts of solvent toluene, 0.5 parts of coupling agent silane coupling agent, 1 part of plasticizer dibutyl phthalate, and 0.5 parts of cross-linking agent dicyandiamide.

[0047] In the composite sealing process of step S6, the flexible polymer layer is a polyurethane elastomer with a thickness of 0.5 mm, and the high-strength nanofiber layer is a carbon nanofiber with a thickness of 0.1 mm.

[0048] Example 2

[0049] The embodiment of the present invention provides a method for anti-seepage treatment of a cooling tower pool wall, which specifically comprises the following steps:

[0050] S1. Bionic substrate treatment

[0051] Computer-aided design software was used to create 3D models with microscopic bionic structures that could mimic the microscopic bumps and depressions on the surface of lotus leaves. The designed bionic structures were directly printed onto the cooling tower pool wall using a 3D printer. The printing material was silicon oxide-based ceramics, and then siloxane-based coatings were evenly sprayed onto the surface of the bionic structures.

[0052] S2. Intelligent sensing waterproof layer

[0053] The nickel-titanium alloy is prepared into microparticles by mechanical grinding to ensure uniform particle size, the microparticles are cleaned and dried to remove oxides and impurities on the surface to prepare shape memory alloy microparticles, the polyurethane-based shape memory polymer is dissolved in an acetone solvent to prepare a uniform polymer solution, and then a proper amount of dispersant and thickener are added to adjust the viscosity and fluidity of the solution to prepare a shape memory polymer solution, the prepared shape memory alloy microparticles are gradually added to the shape memory polymer solution, stirred evenly to ensure uniform dispersion of the microparticles, a proper amount of stabilizer is added to prevent the microparticles from settling in the coating, and finally an intelligent sensing waterproof layer is prepared, and then the intelligent sensing waterproof layer is applied to cover all areas of the pool wall;

[0054] S3. Bionic self-repairing waterproof membrane laying

[0055] The polysiloxane is dissolved in the solvent toluene to prepare a uniform polymer solution, the silicon dioxide is prepared into nanoparticles by chemical precipitation, sol-gel method or mechanical grinding method to ensure that the size of the nanoparticles is uniform and controlled within the range of 20-100 nanometers, the nanoparticles are surface treated with a coupling agent silane coupling agent to improve their compatibility with the polymer matrix, the nanoparticles are dried after the surface treatment, the treated nanoparticles are gradually added to the polymer solution, and ultrasonic oscillation or high-speed agitator is used for dispersion to ensure that the nanoparticles are evenly distributed, and appropriate amounts of plasticizers and cross-linking agents are added as needed to adjust the mechanical properties and self-healing ability of the composite material, the mixture is fully stirred, and then a degassing treatment is performed to remove the bubbles in the mixture to finally prepare the composite material, and then the composite material is laid on the bottom of the pool wall;

[0056] S4. Intelligent sensing and feedback system

[0057] Sensors are embedded in key locations on the pool wall. These sensors are humidity sensors, stress sensors, and temperature sensors. The sensors transmit the collected data to the central control system in real time through wireless transmission modules. The central control system analyzes the sensor data in real time, automatically issues an alarm when leakage is detected, and initiates a repair mechanism.

[0058] S5. Bionic super-hydrophobic surface treatment

[0059] The bionic super-hydrophobic nano-coating selects nano-silica or fluorine-containing polymer coating, and then uses a spraying device to evenly spray the bionic super-hydrophobic nano-coating on the surface of the pool wall to ensure complete coverage;

[0060] S6. Composite sealing treatment

[0061] Use a multi-layer composite sealing material, including a flexible polymer layer and a high-strength nanofiber layer, to ensure the sealing of all joints and edges. Apply the composite sealing material evenly along the edges and joints of the pool wall, and compact and smooth it with special tools.

[0062] The computer-aided design software used in step S1 bionic substrate processing is 3ds max.

[0063] Step S1 Before bionic substrate treatment, dust, oil stains, and loose particle impurities on the pool wall surface must be removed to ensure the surface is clean, and cement mortar or repair materials must be used to fill cracks and holes on the pool wall surface to ensure a smooth surface.

[0064] In step S2, the proportion of raw materials used in the preparation of the intelligent sensing waterproof layer is: 20-30 parts of nickel-titanium alloy, 70 parts of polyurethane-based shape memory polymer, 2 parts of dispersant, 1.5 parts of thickener, and 0.7 parts of stabilizer. The intelligent sensing waterproof layer is applied twice, with a thickness of 0.4 mm once. After drying, the second thickness is 0.4 mm.

[0065] In step S3, during the laying of the bionic self-repairing waterproof membrane, the waterproof membrane is gradually pasted starting from the bottom of the pool wall to ensure that the membrane fits tightly to the pool wall with an overlap of at least 10 cm. Special equipment is used to compact the waterproof membrane to ensure that there are no bubbles or gaps.

[0066] In step S3, the specific proportions of the bionic self-repairing waterproof membrane in the laying of the bionic self-repairing waterproof membrane are: 70 parts of polymer matrix polysiloxane, 30 parts of nanoparticle silica, 17 parts of solvent toluene, 0.7 parts of coupling agent silane coupling agent, 1.5 parts of plasticizer dibutyl phthalate, and 0.7 parts of cross-linking agent dicyandiamide.

[0067] In the composite sealing process of step S6, the flexible polymer layer is a polyurethane elastomer with a thickness of 1.5 mm, and the high-strength nanofiber layer is a carbon nanofiber with a thickness of 0.3 mm.

[0068] Example 3

[0069] The embodiment of the present invention provides a method for anti-seepage treatment of a cooling tower pool wall, which specifically comprises the following steps:

[0070] S1. Bionic substrate treatment

[0071] Computer-aided design software was used to create 3D models with microscopic bionic structures that could mimic the microscopic bumps and depressions on the surface of lotus leaves. The designed bionic structures were directly printed onto the cooling tower pool wall using a 3D printer. The printing material was silicon oxide-based ceramics, and then siloxane-based coatings were evenly sprayed onto the surface of the bionic structures.

[0072] S2. Intelligent sensing waterproof layer

[0073] The nickel-titanium alloy is prepared into microparticles by mechanical grinding to ensure uniform particle size, the microparticles are cleaned and dried to remove oxides and impurities on the surface to prepare shape memory alloy microparticles, the polyurethane-based shape memory polymer is dissolved in an acetone solvent to prepare a uniform polymer solution, and then a proper amount of dispersant and thickener are added to adjust the viscosity and fluidity of the solution to prepare a shape memory polymer solution, the prepared shape memory alloy microparticles are gradually added to the shape memory polymer solution, stirred evenly to ensure uniform dispersion of the microparticles, a proper amount of stabilizer is added to prevent the microparticles from settling in the coating, and finally an intelligent sensing waterproof layer is prepared, and then the intelligent sensing waterproof layer is applied to cover all areas of the pool wall;

[0074] S3. Bionic self-repairing waterproof membrane laying

[0075] The polysiloxane is dissolved in the solvent toluene to prepare a uniform polymer solution, the silicon dioxide is prepared into nanoparticles by chemical precipitation, sol-gel method or mechanical grinding method to ensure that the size of the nanoparticles is uniform and controlled within the range of 20-100 nanometers, the nanoparticles are surface treated with a coupling agent silane coupling agent to improve their compatibility with the polymer matrix, the nanoparticles are dried after the surface treatment, the treated nanoparticles are gradually added to the polymer solution, and ultrasonic oscillation or high-speed agitator is used for dispersion to ensure that the nanoparticles are evenly distributed, and appropriate amounts of plasticizers and cross-linking agents are added as needed to adjust the mechanical properties and self-healing ability of the composite material, the mixture is fully stirred, and then a degassing treatment is performed to remove the bubbles in the mixture to finally prepare the composite material, and then the composite material is laid on the bottom of the pool wall;

[0076] S4. Intelligent sensing and feedback system

[0077] Sensors are embedded in key locations on the pool wall. These sensors are humidity sensors, stress sensors, and temperature sensors. The sensors transmit the collected data to the central control system in real time through wireless transmission modules. The central control system analyzes the sensor data in real time, automatically issues an alarm when leakage is detected, and initiates a repair mechanism.

[0078] S5. Bionic super-hydrophobic surface treatment

[0079] The bionic super-hydrophobic nano-coating selects nano-silica or fluorine-containing polymer coating, and then uses a spraying device to evenly spray the bionic super-hydrophobic nano-coating on the surface of the pool wall to ensure complete coverage;

[0080] S6. Composite sealing treatment

[0081] Use a multi-layer composite sealing material, including a flexible polymer layer and a high-strength nanofiber layer, to ensure the sealing of all joints and edges. Apply the composite sealing material evenly along the edges and joints of the pool wall, and compact and smooth it with special tools.

[0082] The computer-aided design software used in step S1 of bionic substrate processing is SolidWorks.

[0083] Step S1 Before bionic substrate treatment, dust, oil stains, and loose particle impurities on the pool wall surface must be removed to ensure the surface is clean, and cement mortar or repair materials must be used to fill cracks and holes on the pool wall surface to ensure a smooth surface.

[0084] In step S2, the proportion of raw materials used in the preparation of the intelligent sensing waterproof layer is: 30 parts of nickel-titanium alloy, 75 parts of polyurethane-based shape memory polymer, 3 parts of dispersant, 2 parts of thickener, and 1 part of stabilizer. The intelligent sensing waterproof layer is applied twice, with a thickness of 0.5 mm once. After drying, the second thickness is 0.5 mm.

[0085] In step S3, during the laying of the bionic self-repairing waterproof membrane, the waterproof membrane is gradually pasted starting from the bottom of the pool wall to ensure that the membrane fits tightly to the pool wall with an overlap of at least 10 cm. Special equipment is used to compact the waterproof membrane to ensure that there are no bubbles or gaps.

[0086] In step S3, the specific proportions of the bionic self-repairing waterproof membrane in the laying of the bionic self-repairing waterproof membrane are: 80 parts of polymer matrix polysiloxane, 40 parts of nanoparticle silica, 30 parts of solvent toluene, 1 part of coupling agent silane coupling agent, 2 parts of plasticizer dibutyl phthalate, and 1 part of cross-linking agent dicyandiamide.

[0087] In the composite sealing process of step S6, the flexible polymer layer is a polyurethane elastomer with a thickness of 2 mm, and the high-strength nanofiber layer is a carbon nanofiber with a thickness of 0.5 mm.

[0088] The method of the present invention establishes a series of protective layers through multiple steps from S1 to S6, each layer is designed for different anti-seepage requirements. From bionic base treatment to intelligent sensing waterproof layer, to composite sealing treatment, each layer provides additional protection for the cooling tower, greatly enhancing the overall anti-seepage effect.

[0089] By imitating the surface structure of lotus leaves in nature, a surface that can effectively repel water is created, which not only enhances the waterproof effect, but also extends the service life of the structure by reducing the adhesion of water droplets. Utilizing the characteristics of shape memory alloys and shape memory polymers, the prepared intelligent sensing waterproof layer can trigger self-repair when cracks or damage are found, thereby maintaining anti-seepage performance without human intervention.

[0090] The surface structure of the cooling tower pool wall is precisely constructed using 3D printing technology to ensure the precise implementation of the design, which is difficult to achieve with traditional manufacturing technology. By embedding humidity, stress and temperature sensors, the pool wall status is monitored in real time, and the data is analyzed through the central control system. Once a leak is detected, the system can automatically issue an alarm and start the repair mechanism, improving maintenance efficiency and safety.

[0091] The waterproof membrane has a self-repairing function and can automatically repair daily wear and tear or minor damage, extending the service life of the material and reducing maintenance costs. The application of super-hydrophobic nano-coating further enhances the waterproof performance of the surface, while reducing the adhesion of pollutants and facilitating cleaning and maintenance. The application of composite sealing materials ensures that all joints and edges are effectively sealed, greatly improving the anti-seepage performance of the overall structure.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for anti-seepage treatment of a cooling tower pool wall, characterized in that: The specific steps include: S1. Bionic substrate treatment Computer-aided design software was used to create 3D models with microscopic bionic structures that could mimic the microscopic bumps and depressions on the surface of lotus leaves. The designed bionic structures were directly printed onto the cooling tower pool wall using a 3D printer. The printing material was silicon oxide-based ceramics, and then siloxane-based coatings were evenly sprayed onto the surface of the bionic structures. S2. Intelligent sensing waterproof layer The nickel-titanium alloy is prepared into microparticles by mechanical grinding to ensure uniform particle size, the microparticles are cleaned and dried to remove oxides and impurities on the surface to prepare shape memory alloy microparticles, the polyurethane-based shape memory polymer is dissolved in an acetone solvent to prepare a uniform polymer solution, and then a proper amount of dispersant and thickener are added to adjust the viscosity and fluidity of the solution to prepare a shape memory polymer solution, the prepared shape memory alloy microparticles are gradually added to the shape memory polymer solution, stirred evenly to ensure uniform dispersion of the microparticles, a proper amount of stabilizer is added to prevent the microparticles from settling in the coating, and finally an intelligent sensing waterproof layer is prepared, and then the intelligent sensing waterproof layer is applied to cover all areas of the pool wall; S3. Bionic self-repairing waterproof membrane laying The polysiloxane is dissolved in the solvent toluene to prepare a uniform polymer solution, the silicon dioxide is prepared into nanoparticles by chemical precipitation, sol-gel method or mechanical grinding method to ensure that the size of the nanoparticles is uniform and controlled within the range of 20-100 nanometers, the nanoparticles are surface treated with a coupling agent silane coupling agent to improve their compatibility with the polymer matrix, the nanoparticles are dried after the surface treatment, the treated nanoparticles are gradually added to the polymer solution, and ultrasonic oscillation or high-speed agitator is used for dispersion to ensure that the nanoparticles are evenly distributed, and appropriate amounts of plasticizers and cross-linking agents are added as needed to adjust the mechanical properties and self-healing ability of the composite material, the mixture is fully stirred, and then a degassing treatment is performed to remove the bubbles in the mixture to finally prepare the composite material, and then the composite material is laid on the bottom of the pool wall; S4. Intelligent sensing and feedback system Sensors are embedded in key locations on the pool wall. These sensors are humidity sensors, stress sensors, and temperature sensors. The sensors transmit the collected data to the central control system in real time through wireless transmission modules. The central control system analyzes the sensor data in real time, automatically issues an alarm when leakage is detected, and initiates a repair mechanism. S5. Bionic super-hydrophobic surface treatment The bionic super-hydrophobic nano-coating selects nano-silica or fluorine-containing polymer coating, and then uses a spraying device to evenly spray the bionic super-hydrophobic nano-coating on the surface of the pool wall to ensure complete coverage; S6. Composite sealing treatment Use a multi-layer composite sealing material, including a flexible polymer layer and a high-strength nanofiber layer, to ensure the sealing of all joints and edges. Apply the composite sealing material evenly along the edges and joints of the pool wall, and compact and smooth it with special tools.

2. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: The computer-aided design software used in the bionic substrate treatment in step S1 is any one of CAD, 3ds max, Rhinocero, and SolidWorks.

3. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: Before the bionic substrate treatment in step S1, dust, oil stains, and loose particle impurities on the surface of the pool wall must be removed to ensure the surface is clean, and cement mortar or repair materials must be used to fill cracks and holes on the surface of the pool wall to ensure the surface is smooth.

4. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: The proportion of raw materials used in the preparation of the smart sensing waterproof layer in step S2 is: 20-30 parts of nickel-titanium alloy, 65-75 parts of polyurethane-based shape memory polymer, 1-3 parts of dispersant, 1-2 parts of thickener, and 0.5-1 part of stabilizer. The smart sensing waterproof layer is applied twice, with a thickness of 0.3 mm to 0.5 mm once. After drying, the second thickness is 0.3 mm to 0.5 mm.

5. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: In the step S3 of laying the bionic self-repairing waterproof membrane, the waterproof membrane is gradually pasted from the bottom of the pool wall to ensure that the membrane fits tightly to the pool wall with an overlapping part of at least 10 cm. Special equipment is used to compact the waterproof membrane to ensure that there are no bubbles and gaps.

6. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: The specific proportions of the bionic self-repairing waterproof membrane in the bionic self-repairing waterproof membrane laying step S3 are: 60-80 parts of polymer matrix polysiloxane, 20-40 parts of nanoparticle silica, 5-30 parts of solvent toluene, 0.5-1 part of coupling agent silane coupling agent, 1-2 parts of plasticizer dibutyl phthalate, and 0.5-1 part of cross-linking agent dicyandiamide.

7. The anti-seepage treatment method for a cooling tower pool wall according to claim 1, characterized in that: In the composite sealing process of step S6, the flexible polymer layer is a polyurethane elastomer with a thickness of 0.5 mm to 2 mm, and the high-strength nanofiber layer is a carbon nanofiber with a thickness of 0.1 mm to 0.5 mm.