Infiltrating anti-corrosion processing equipment for anti-corrosion oil wood electric pole

Abstract

The invention relates to the technical field of corrosion prevention, and particularly discloses corrosion-resistant oil-resistant wood electric pole infiltration corrosion-resistant processing equipment which comprises a preservative supply device, a high-pressure infiltration module and a constant-temperature control module, and the preservative supply device achieves stable supply and accurate flow control through a high-density sealed storage tank, a metering pump and an electronic flowmeter; the high-pressure infiltration module adopts a four-stage pressurization process of pre-pressurization, medium-pressure infiltration, high-pressure deep infiltration and reduced-pressure curing, so that preservative infiltration is optimized, and bubble retention and stress concentration are reduced; the constant temperature control module maintains the infiltration temperature of 60-90 DEG C through an intelligent temperature control system, and the preservative diffusion rate and the wood absorption capacity are improved. Compared with the prior art, the invention has the advantages of obviously improving the uniform permeability of the preservative, improving the preservative effect and utilization rate, prolonging the service life of the electric pole, and being suitable for the preservative treatment of wooden electric poles in electric power transmission, communication lines and lighting systems.

Description

Technical Field

[0001] The present invention relates to the field of anti-corrosion technology, and more specifically, to an anti-corrosion oil-impregnated anti-corrosion processing device for wooden electric poles. Background Art

[0002] Wooden poles are widely used in power transmission, communication lines and lighting systems, but they are easily affected by moisture, rot and insects when exposed to harsh environments for a long time, which affects their service life and structural stability. Traditional anti-corrosion methods mainly include surface coating with preservatives, immersion treatment and high-pressure impregnation treatment.

[0003] The existing public literature (Shenghua Refinery Equipment Anticorrosion Countermeasures, 2007) discloses an anticorrosion measure for a refinery. In terms of removing corrosive media, this anticorrosion measure uses methods such as hydrodesulfurization, electro-desalting and dehydration, and water washing. At the same time, it uses neutralizers and corrosion inhibitors to reduce the activity of corrosive media, and also adds anti-scaling agents to prevent equipment scaling. In terms of material selection and design, suitable stainless steel, low-alloy steel and other materials are selected according to the corrosion resistance of metal materials, and reasonable design is carried out in combination with the working conditions and structural characteristics of the equipment; electrochemical protection is adopted, covering both cathodic protection and anodic protection; the process anticorrosion method "desalting and four injections" is used, namely crude oil desalting, alkali injection, ammonia injection, water injection, and corrosion inhibitor injection to prevent corrosion in low-temperature parts. However, these anticorrosion measures have certain disadvantages. In the "one desalination and four injections" process, the effect of electrical desalination is unstable, and insufficient desalination depth can easily lead to chloride ion accumulation, causing stress corrosion cracking of equipment, and ammonia injection may generate ammonium chloride, causing equipment perforation. Injection of corrosion inhibitors cannot completely solve all corrosion problems. In terms of material selection, some corrosion-resistant materials are expensive and will increase costs, such as some stainless steels and imported special steels that are resistant to sulfuric acid dew point corrosion. In electrochemical protection, the sacrificial anode cathodic protection method consumes a large amount of anodes in highly corrosive medium equipment, which is not economical, and anode protection is only applicable to metals that can be passivated, and its application range is limited. In addition, the effectiveness of anti-corrosion coatings depends on the construction quality. The coating is easily damaged during construction, affecting the anti-corrosion effect.

[0004] The existing open patent (An anti-corrosion treatment device for rubber hose processing, CN210585669U) discloses an anti-corrosion treatment device for rubber hose processing, which is mainly composed of a base, a frame, a coating cylinder, a paint box, etc. The frame is fixed on the base, and the coating cylinder is driven by a servo motor on the base to rotate forward and reversely. A plurality of first bristles and second bristles are respectively installed in the upper half of the left side and the lower half of the right side of the inner cavity in a circumferentially radial manner. The paint box is located at the top of the frame, and the paint is delivered to the bristles through the delivery pump and the delivery hose at the bottom. The device uses the inlet drive wheel and the outlet drive wheel to deliver the rubber hose, so that it passes through the coating cylinder at an angle, and cooperates with the rotation of the coating cylinder to achieve uniform brushing of the anti-corrosion paint on the upper and lower parts of the rubber hose, and the amount of paint applied can be adjusted by controlling the pressure in the storage cavity. However, the structure of the device is relatively complex, with many parts, which increases the equipment cost and maintenance difficulty; and it is difficult to ensure a comprehensive and uniform anti-corrosion treatment effect for some rubber hoses with complex shapes or internal structures by only brushing with bristles.

[0005] Therefore, there is an urgent need for a processing equipment that can improve the anti-corrosion performance. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an anti-corrosion oil-wood pole infiltration and anti-corrosion processing equipment, which optimizes the preservative penetration process by adopting a staged pressurization method, from pre-pressurization to decompression and curing, to reduce stress concentration and bubble retention inside the wood, and ensure uniform penetration, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A kind of anti-corrosion oil-wood pole infiltration and anti-corrosion processing equipment, including an anti-corrosion agent supply device, a high-pressure infiltration module and a constant temperature control module. The anti-corrosion agent supply device is used to store and transport the anti-corrosion agent; the high-pressure infiltration module increases the penetration depth of the anti-corrosion agent by controlling the pressure change; the constant temperature control module is used to maintain the infiltration temperature and improve the infiltration efficiency.

[0009] In the medium-pressure penetration stage, the high-pressure infiltration module will monitor the penetration of the wood in real time, and dynamically adjust the pressure according to the density, moisture content and penetration rate of the preservative through the pressure feedback control model to ensure that the preservative evenly penetrates into the middle layer of the wood and improve the antiseptic effect. The calculation formula of the pressure feedback control model is: Among them, P' is the real-time regulated pressure, P0 is the initial pressure, ρ w is the actual density of the wood, is the preset wood density target value, K p is the coefficient for controlling the pressure change, M is the moisture content of the wood, M* is the preset wood moisture content target value, K m is the coefficient for controlling the effect of water content change on pressure regulation, v is the penetration rate of the preservative, and v * is the preset target value of the preservative penetration rate, K s It is the coefficient that controls the influence of permeation rate change on pressure regulation.

[0010] As a further solution of the present invention, in the medium-pressure penetration stage, the high-pressure infiltration module gradually increases the pressure to 1.0MPa-1.5MPa, and uses the pressure gradient to cause the preservative to gradually diffuse into the wood and fill the micro-pore structure in the wood. The calculation formula is: Where J is the permeation flux, k is the wood permeability coefficient, μ is the fluid viscosity of the preservative, is the pressure gradient, D is the diffusion coefficient, is the concentration gradient.

[0011] As a further solution of the present invention, the preservative supply device is used to store and transport preservatives, including the following specific contents: the preservative supply device includes a preservative storage tank, a transport unit, a flow control unit and a spraying device.

[0012] The preservative storage tank is made of stainless steel with high sealing performance, which can prevent the evaporation and oxidation of the preservative. It is also equipped with an automatic stirring device to prevent the preservative from precipitation or uneven composition due to long-term standing. In addition, the preservative storage tank is equipped with a temperature control system, which can maintain the fluidity of the preservative within a specific temperature range (60-80°C) to ensure the stability and permeability of the preservative during transportation.

[0013] The delivery unit adopts a metering pump and a corrosion-resistant delivery pipeline, which can deliver the preservative to the impregnation tank or spraying device, and adjust the delivery rate according to the specifications and processing requirements of the pole through frequency conversion control technology to avoid excessive waste of the preservative or insufficient penetration.

[0014] The flow control unit uses an electronic flow meter to monitor the preservative flow in real time and adjust the delivery speed and pressure in combination with the pole infiltration state to ensure that each pole can obtain the best preservative absorption amount at different infiltration stages (such as initial infiltration, pressurized infiltration, and constant pressure maintenance). The specific steps are as follows:

[0015] Step Y1, according to the Bernoulli equation, in a horizontal conveying pipeline, the relationship between the conveying pressure P(t) and the conveying speed v(t) of the preservative is: Where P(t) is the preservative delivery pressure at time t, v(t) is the delivery velocity at time t, ρ is the density of the preservative, v0 is the initial delivery velocity, P atmis the ambient atmospheric pressure.

[0016] Step S2, based on the adaptive regulation system of feedback control, the flow adjustment of the preservative depends on the error feedback. According to the flow error and the error change rate, the delivery speed and delivery pressure are adjusted. The calculation formula is: Among them, Q abs (t) is the volume flow rate of preservative absorbed by the wooden pole at time t, Q in (t) is the flow rate of the preservative provided by the preservative supply device to the pole surface at time t, K1 is the flow rate proportional gain, which means that when the actual absorption flow rate of the preservative Q abs (t) and supply flow rate Q in K2 is the flow differential gain, which is used to adjust the system's response speed to changes in flow error. K3 is the pressure proportional gain, which means that when the flow error is large, the delivery pressure P(t) is adjusted to compensate for insufficient flow. K4 is the pressure differential gain, which is used to predict the impact of flow changes on pressure in advance. Δt is the time step.

[0017] The spraying device is used to perform preliminary anti-corrosion coating treatment on the electric pole before it enters the impregnation tank. It uses a high-pressure atomizing nozzle or ultrasonic spraying technology to make the preservative evenly adhere to the wood surface and fill in tiny cracks on the surface, thereby improving the uniformity and efficiency of the subsequent impregnation process.

[0018] As a further solution of the present invention, the high-pressure infiltration module increases the penetration depth of the preservative by controlling the pressure change, including the following specific contents: the high-pressure infiltration module optimizes the penetration process of the preservative at different pressure stages by using a staged pressurization method to ensure that all areas inside the wood can evenly absorb the preservative, thereby avoiding the problem of local concentration being too high or too low, while reducing the retained bubbles of the preservative in the pore structure of the wood, thereby improving the utilization efficiency of the preservative.

[0019] The staged pressurization method includes a pre-pressurization stage, a medium-pressure penetration stage, a high-pressure deep penetration stage, and a decompression and curing stage. In the pre-pressurization stage, the high-pressure infiltration module will apply a low-pressure environment of 0.3MPa-0.5MPa. The low-pressure environment is used to expel the air inside the wood and gradually adapt the wood cell structure to the external pressure changes, thereby reducing the stress concentration phenomenon during subsequent high-pressure treatment, and avoiding the occurrence of wood fiber rupture or local sealing due to sudden pressurization. In this process, the preservative will slowly enter the shallow part of the wood under the influence of capillary action, but due to the low pressure, this stage mainly plays a role of initial penetration and will not penetrate into the core of the wood.

[0020] The high-pressure deep penetration stage increases the pressure to 2.0MPa-2.5MPa, and some high-density wood may even require higher pressure (such as 3.0MPa or more). At this stage, the cell wall of the wood has undergone gradual adaptation in the first two stages, and its microstructure has become more open, thereby reducing the resistance to the penetration of the preservative. The high-pressure environment can push the preservative to penetrate the dense fiber layer of the wood at a faster speed, allowing it to effectively fill the entire wood structure.

[0021] In the decompression and curing stage, after the high-pressure infiltration is completed, the high-pressure infiltration module will gradually reduce the pressure to allow the preservative inside the wood to reach equilibrium with the external environment and enter the curing process. During the curing process, the preservative molecules inside the wood will react chemically and physically with the wood cell wall, thereby forming a more stable anticorrosive protective layer.

[0022] As a further solution of the present invention, the thermostatic control module is used to maintain the infiltration temperature and improve the infiltration efficiency, including the following specific contents: the thermostatic control module can increase the diffusion rate of the preservative by adjusting the temperature in the infiltration tank, reduce the resistance in the wood absorption process, and improve the antiseptic effect. Studies have shown that temperature has a significant effect on the penetration ability of preservatives, especially when there are complex pore structures and fiber tissues inside the wood, temperature changes can directly affect the viscosity, diffusion rate, capillary action and expansion characteristics of the wood cell wall of the preservative. The thermostatic control module uses an intelligent temperature control system to control the temperature between 60-90°C, improve the utilization rate of the preservative, and reduce energy consumption. The intelligent temperature control system includes a temperature sensor, a heating module, a cooling module and an intelligent control unit, which can monitor and adjust the temperature in the infiltration tank in real time. The temperature sensor (such as a thermocouple or an infrared temperature sensor) is used to detect the temperature data in the antiseptic tank and transmit it to the intelligent control unit in real time. The heating module uses electric heating or steam heating to stabilize the preservative temperature within the target range. For high temperature environments, the system is also equipped with a cooling module (such as a water cooling system or an air cooling system) to prevent the preservative from volatilizing or damaging the wood structure due to excessive temperature. The intelligent control unit combines the PID (proportional-integral-differential) control algorithm to automatically adjust the heating or cooling rate to keep the temperature in the infiltration tank constant.

[0023] The technical effects and advantages of a bridge health monitoring and early warning method of the present invention are as follows: the preservative supply device of the present invention adopts a high-sealed stainless steel storage tank, equipped with a stirring and temperature control system to ensure the stability of the preservative; the metering pump and the corrosion-resistant pipeline are combined with frequency conversion control technology to accurately adjust the delivery rate to avoid waste and insufficient penetration; the electronic flow meter adjusts the delivery speed and pressure through feedback control to ensure that the pole absorbs an appropriate amount of preservative at each infiltration stage; the spraying device adopts high-pressure atomization or ultrasonic spraying technology to improve the uniformity and efficiency of subsequent infiltration. The high-pressure infiltration module uses a staged pressurization method, from pre-pressurization to decompression curing, to optimize the preservative penetration process, reduce the internal stress concentration of the wood, bubble retention, ensure uniform penetration, and improve the anticorrosive effect and the utilization rate of the preservative. The constant temperature control module controls the temperature at 60-90°C through an intelligent temperature control system, and uses the influence of temperature on the preservative and wood to increase the diffusion rate of the preservative, reduce the penetration resistance, enhance the capillary action, and improve the absorption capacity of the wood, while improving the utilization rate of the preservative and reducing energy consumption. Compared with traditional anti-corrosion measures and equipment, this processing equipment overcomes the problems of unstable electrical desalination effect, high material selection cost, limited application of electrochemical protection, high dependence on anti-corrosion coating construction, complex structure, and incomplete anti-corrosion treatment. It significantly improves the anti-corrosion performance of oil-wood poles, extends the service life of poles, and ensures the stability of power transmission, communication lines and lighting systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an anti-corrosion oil-impregnated anti-corrosion processing device for wooden electric poles according to the present invention.

[0025] Figure 2 It is a schematic diagram of the electro-desalting process flow of the anti-corrosion measures in the prior art.

[0026] Figure 3 The present invention is a schematic structural diagram of an anti-corrosion treatment device for rubber hose processing in the prior art.

[0027] Figure 4 The flow chart is a method for the flow control unit of the present invention to monitor the preservative flow in real time through an electronic flow meter, and dynamically adjust the delivery speed and pressure in combination with the wetting state of the pole.

[0028] Figure 5 Schematic diagram of the influence of temperature on the viscosity, diffusion coefficient, capillary height and cell wall expansion rate of the preservative of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in 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 creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1 As shown in the structural schematic diagram, an embodiment of the present invention provides an anticorrosive oil wood pole infiltration anticorrosive processing equipment, which includes an anticorrosive supply device, a high-pressure infiltration module and a constant temperature control module. The anticorrosive supply device is used to store and transport the anticorrosive; the high-pressure infiltration module increases the penetration depth of the anticorrosive by controlling the pressure change; the constant temperature control module is used to maintain the infiltration temperature and improve the infiltration efficiency.

[0032] In this embodiment, see Figure 2 The schematic diagram shown is an anti-corrosion measure for an oil refinery disclosed in the prior art. In terms of removing the corrosive medium, this anti-corrosion measure adopts methods such as hydrodesulfurization, electro-desalting and dehydration, and water washing. At the same time, neutralizers and corrosion inhibitors are used to reduce the activity of the corrosive medium, and anti-scaling agents are added to prevent equipment scaling. In terms of material selection and design, suitable stainless steel, low-alloy steel and other materials are selected according to the corrosion resistance of metal materials, and reasonable design is carried out in combination with the working conditions and structural characteristics of the equipment. Electrochemical protection is adopted, covering both cathodic protection and anodic protection. The process anti-corrosion method "desalting and four injections" is used, namely crude oil desalting, alkali injection, ammonia injection, water injection, and corrosion inhibitor injection to prevent corrosion in low-temperature parts. However, these anti-corrosion measures have certain disadvantages. In the "one desalination and four injections" process, the effect of electrical desalination is unstable. Insufficient desalination depth can easily lead to chloride ion accumulation, causing stress corrosion cracking of equipment. Injection of ammonia may generate ammonium chloride, causing equipment perforation. Injection of corrosion inhibitors cannot completely solve all corrosion problems. In terms of material selection, some corrosion-resistant materials are expensive and will increase costs, such as some stainless steels and imported special steels resistant to sulfuric acid dew point corrosion. In electrochemical protection, the sacrificial anode cathodic protection method consumes a large amount of anodes in highly corrosive media equipment, which is not economical. Anodic protection is only applicable to metals that can be passivated, and its application range is limited. In addition, the effect of anti-corrosion coatings depends on the construction quality. The coating is easily damaged during the construction process, affecting the anti-corrosion effect. Figure 3The structural schematic diagram shown is an anti-corrosion treatment device for rubber hose processing disclosed in the prior art, which is mainly composed of a base, a frame, a coating cylinder, a paint box, etc. The frame is fixed on the base, and the coating cylinder is driven by a servo motor on the base to rotate forward and reversely. A plurality of first bristles and second bristles are respectively installed in the upper left half and the lower right half of the inner cavity in a circumferentially radial manner. The paint box is located at the top of the frame, and the paint is delivered to the bristles through the delivery pump and the delivery hose at the bottom. The device uses the inlet drive wheel and the outlet drive wheel to deliver the rubber hose, so that it passes through the coating cylinder at an angle, and cooperates with the rotation of the coating cylinder to achieve uniform brushing of the anti-corrosion paint on the upper and lower parts of the rubber hose, and the amount of paint applied can be adjusted by controlling the pressure in the storage cavity. However, the structure of the device is relatively complex, with many parts, which increases the equipment cost and maintenance difficulty; and it is difficult to ensure a comprehensive and uniform anti-corrosion treatment effect for some rubber hoses with complex shapes or internal structures only by brushing with bristles.

[0033] Furthermore, the preservative supply device is used to store and transport preservatives, including the following specific contents: the preservative supply device includes a preservative storage tank, a transport unit, a flow control unit and a spraying device. The preservative storage tank is made of stainless steel with high sealing performance, which can prevent the evaporation and oxidation of the preservative. It is also equipped with an automatic stirring device to prevent the preservative from precipitation or uneven composition due to long-term standing. In addition, the preservative storage tank is equipped with a temperature control system that can maintain the fluidity of the preservative within a specific temperature range (60-80°C) to ensure the stability and permeability of the preservative during transportation.

[0034] The delivery unit adopts a metering pump and a corrosion-resistant delivery pipeline, which can deliver the preservative to the impregnation tank or spraying device, and adjust the delivery rate according to the specifications and processing requirements of the pole through frequency conversion control technology to avoid excessive waste of the preservative or insufficient penetration.

[0035] See also Figure 4 As shown in the flowchart, the flow control unit adopts an electronic flow meter, which monitors the preservative flow in real time and adjusts the delivery speed and pressure in combination with the pole infiltration state to ensure that each pole can obtain the best preservative absorption amount at different infiltration stages (such as initial infiltration, pressurized infiltration, and constant pressure maintenance). The specific steps are as follows:

[0036] Step Y1, according to the Bernoulli equation, in a horizontal conveying pipeline, the relationship between the conveying pressure P(t) and the conveying speed v(t) of the preservative is: Where P(t) is the preservative delivery pressure at time t, v(t) is the delivery velocity at time t, ρ is the density of the preservative, v0 is the initial delivery velocity, P atm is the ambient atmospheric pressure.

[0037] Step S2, based on the adaptive regulation system of feedback control, the flow adjustment of the preservative depends on the error feedback. According to the flow error and the error change rate, the delivery speed and delivery pressure are adjusted. The calculation formula is: Among them, Q abs (t) is the volume flow rate of preservative absorbed by the wooden pole at time t, Q in (t) is the flow rate of the preservative provided by the preservative supply device to the pole surface at time t, K1 is the flow rate proportional gain, which means that when the actual absorption flow rate of the preservative Q abs (t) and supply flow rate Q in K2 is the flow differential gain, which is used to adjust the system's response speed to changes in flow error. K3 is the pressure proportional gain, which means that when the flow error is large, the delivery pressure P(t) is adjusted to compensate for insufficient flow. K4 is the pressure differential gain, which is used to predict the impact of flow changes on pressure in advance. Δt is the time step.

[0038] The spraying device is used to perform preliminary anti-corrosion coating treatment on the electric pole before it enters the impregnation tank. It uses a high-pressure atomizing nozzle or ultrasonic spraying technology to make the preservative evenly adhere to the wood surface and fill in tiny cracks on the surface, thereby improving the uniformity and efficiency of the subsequent impregnation process.

[0039] Furthermore, the high-pressure infiltration module improves the penetration depth of the preservative by controlling the pressure change, including the following specific contents: the high-pressure infiltration module optimizes the penetration process of the preservative at different pressure stages by using a staged pressurization method to ensure that all areas inside the wood can evenly absorb the preservative, thereby avoiding the problem of local concentration being too high or too low, while reducing the retained bubbles of the preservative in the pore structure of the wood, thereby improving the utilization efficiency of the preservative.

[0040] The staged pressurization method includes a pre-pressurization stage, a medium-pressure penetration stage, a high-pressure deep penetration stage, and a decompression and curing stage. In the pre-pressurization stage, the high-pressure infiltration module will apply a low-pressure environment of 0.3MPa-0.5MPa. The low-pressure environment is used to expel the air inside the wood and gradually adapt the wood cell structure to the external pressure changes, thereby reducing the stress concentration phenomenon during subsequent high-pressure treatment, and avoiding the occurrence of wood fiber rupture or local sealing due to sudden pressurization. In this process, the preservative will slowly enter the shallow part of the wood under the influence of capillary action, but due to the low pressure, this stage mainly plays a role of initial penetration and will not penetrate into the core of the wood.

[0041] In the medium-pressure penetration stage, the high-pressure infiltration module will gradually increase the pressure to 1.0MPa-1.5MPa, using the pressure gradient to cause the preservative to gradually diffuse into the wood and fill the micro-pore structure in the wood. The calculation formula is: Where J is the permeation flux, k is the wood permeability coefficient, μ is the fluid viscosity of the preservative, is the pressure gradient, D is the diffusion coefficient, The high-pressure infiltration module will monitor the penetration of the wood in real time, and dynamically adjust the pressure according to the density, moisture content and penetration rate of the preservative through the pressure feedback control model to ensure that the preservative evenly penetrates into the middle layer of the wood and improve the antiseptic effect. The calculation formula of the pressure feedback control model is: Among them, P' is the real-time regulated pressure, P0 is the initial pressure, ρ w is the actual density of the wood, is the preset wood density target value, K p is the coefficient for controlling the pressure change, M is the moisture content of the wood, M * is the preset wood moisture content target value, K m is the coefficient for controlling the effect of water content change on pressure regulation, v is the penetration rate of the preservative, and v * is the preset target value of the preservative penetration rate, K s is the coefficient of influence of the permeation rate change on the pressure regulation. Then increase the pressure and increase the penetration depth; if M>M * , the pressure increases, pushing the preservative into the wood; if v <v * , which increases the pressure and speeds up the penetration process.

[0042] The high-pressure deep penetration stage increases the pressure to 2.0MPa-2.5MPa, and some high-density wood may even require higher pressure (such as 3.0MPa or more). At this stage, the cell wall of the wood has undergone gradual adaptation in the first two stages, and its microstructure has become more open, thereby reducing the resistance to the penetration of the preservative. The high-pressure environment can push the preservative to penetrate the dense fiber layer of the wood at a faster speed, allowing it to effectively fill the entire wood structure.

[0043] In the decompression and curing stage, after the high-pressure infiltration is completed, the high-pressure infiltration module will gradually reduce the pressure to allow the preservative inside the wood to reach equilibrium with the external environment and enter the curing process. During the curing process, the preservative molecules inside the wood will react chemically and physically with the wood cell wall, thereby forming a more stable anticorrosive protective layer.

[0044] Furthermore, the constant temperature control module is used to maintain the impregnation temperature and improve the impregnation efficiency, including the following specific contents: the constant temperature control module can increase the diffusion rate of the preservative by adjusting the temperature in the impregnation tank, reduce the resistance of the wood in the absorption process, and improve the antiseptic effect. Studies have shown that temperature has a significant effect on the penetration ability of preservatives, especially when there are complex pore structures and fiber tissues inside the wood. Temperature changes can directly affect the viscosity, diffusion rate, capillary action and expansion characteristics of the preservative cell wall. The research results refer to Figure 5 As the temperature increases from 40°C to 90°C, the viscosity of the preservative decreases from 2.5 mPa·s to 0.85 mPa·s, indicating that the increase in temperature reduces the cohesive force between molecules, making the fluidity of the preservative stronger and easier to penetrate into the tiny pores of the wood; the diffusion coefficient increases from 0.5×10 - 9 m 2 / s increased to 3.8×10 -9 m 2 / s, indicating that the higher the temperature, the faster the molecular movement, and the diffusion capacity of the preservative inside the wood is enhanced; the capillary height increases from 1.0cm to 4.2cm, indicating that the increase in temperature reduces the surface tension of the preservative, allowing it to rise higher in the wood capillary channel and increase the penetration depth; the expansion rate of the wood cell wall increases from 0.2% to 3.5%, indicating that the increase in temperature causes the wood cell wall to expand, increase the pores inside it, reduce the resistance of the preservative during penetration, and thus improve the penetration efficiency. On the whole, when the temperature is within the range of 60-90°C, the fluidity of the preservative is enhanced, the penetration depth is greater, the diffusion rate is increased, the preservative enters the wood structure faster, the capillary action is enhanced, so that the preservative can cover the wood surface and interior more evenly, and the wood cell wall expands appropriately, so that the absorption capacity of the preservative is improved. Therefore, the constant temperature control module uses an intelligent temperature control system to control the temperature between 60-90°C, improve the utilization rate of the preservative, and reduce energy consumption. The intelligent temperature control system includes a temperature sensor, a heating module, a cooling module and an intelligent control unit, which can monitor and adjust the temperature in the infiltration tank in real time. The temperature sensor (such as a thermocouple or an infrared temperature sensor) is used to detect the temperature data in the antiseptic tank and transmit it to the intelligent control unit in real time. The heating module adopts electric heating or steam heating to stabilize the preservative temperature within the target range. For high temperature environments, the system is also equipped with a cooling module (such as a water cooling system or an air cooling system) to avoid excessive temperature causing preservative volatilization or damage to the wood structure. The intelligent control unit combines the PID (proportional-integral-differential) control algorithm to automatically adjust the heating or cooling rate to keep the temperature in the infiltration tank constant. For example, if the target temperature is set to 75°C and the actual temperature is lower than this value, the system will automatically increase the heating power; if the temperature exceeds 75°C, the heating power will be reduced or the cooling device will be started to ensure the temperature stability during the entire infiltration process.

[0045] The preservative supply device of the present invention adopts a high-sealing stainless steel storage tank, equipped with a stirring and temperature control system to ensure the stability of the preservative properties; the metering pump and the corrosion-resistant pipeline are combined with frequency conversion control technology to accurately adjust the delivery rate to avoid waste and insufficient penetration; the electronic flow meter adjusts the delivery speed and pressure through feedback control to ensure that the pole absorbs an appropriate amount of preservatives at each infiltration stage; the spraying device adopts high-pressure atomization or ultrasonic spraying technology to improve the uniformity and efficiency of subsequent infiltration. The high-pressure infiltration module uses a staged pressurization method, from pre-pressurization to decompression curing, to optimize the preservative penetration process, reduce stress concentration and bubble retention inside the wood, ensure uniform penetration, and improve the anti-corrosion effect and preservative utilization rate. The constant temperature control module controls the temperature at 60-90°C through an intelligent temperature control system, and uses the influence of temperature on preservatives and wood to increase the diffusion rate of preservatives, reduce penetration resistance, enhance capillary action, and improve the absorption capacity of wood, while improving the utilization rate of preservatives and reducing energy consumption. Compared with traditional anti-corrosion measures and equipment, this processing equipment overcomes the problems of unstable electrical desalination effect, high material selection cost, limited application of electrochemical protection, high dependence on anti-corrosion coating construction, complex structure, and incomplete anti-corrosion treatment. It significantly improves the anti-corrosion performance of oil-wood poles, extends the service life of poles, and ensures the stability of power transmission, communication lines and lighting systems.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0047] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-corrosion oil-based wooden pole impregnation anti-corrosion processing equipment, characterized in that: It includes an antiseptic supply device, a high-pressure infiltration module and a constant temperature control module. The antiseptic supply device is used to store and transport the antiseptic; the high-pressure infiltration module increases the penetration depth of the antiseptic by controlling the pressure change; the constant temperature control module is used to maintain the infiltration temperature and improve the infiltration efficiency; the antiseptic supply device includes an antiseptic storage tank, a delivery unit, a flow control unit and a spraying device; the high-pressure infiltration module adopts a staged pressurization method, which includes a pre-pressurization stage, a medium-pressure penetration stage, a high-pressure deep penetration stage and a decompression and curing stage; the constant temperature control module includes an intelligent temperature control system; In the medium-pressure penetration stage, the high-pressure infiltration module will monitor the penetration of the wood in real time, and dynamically adjust the pressure according to the density, moisture content and penetration rate of the preservative through the pressure feedback control model to ensure that the preservative evenly penetrates into the middle layer of the wood and improve the antiseptic effect. The calculation formula of the pressure feedback control model is: Among them, P' is the real-time regulated pressure, P0 is the initial pressure, ρ w is the actual density of the wood, is the preset wood density target value, K p is the coefficient for controlling the pressure change, M is the moisture content of the wood, M * is the preset wood moisture content target value, K m is the coefficient for controlling the effect of water content change on pressure regulation, v is the penetration rate of the preservative, and v * is the preset target value of the preservative penetration rate, K s It is the coefficient that controls the influence of permeation rate change on pressure regulation.

2. The anti-corrosion oil-based wood pole impregnation anti-corrosion processing equipment according to claim 1 is characterized in that In the medium-pressure penetration stage, the high-pressure infiltration module gradually increases the pressure to 1.0MPa-1.5MPa, and uses the pressure gradient to gradually diffuse the preservative into the wood and fill the micro-pore structure in the wood. The calculation formula is: Where J is the permeation flux, k is the wood permeability coefficient, μ is the fluid viscosity of the preservative, is the pressure gradient, D is the diffusion coefficient, is the concentration gradient.

3. The anti-corrosion oil-based wood pole impregnation anti-corrosion processing equipment according to claim 1 is characterized in that The flow control unit adopts an electronic flow meter to monitor the flow of the preservative in real time and adjust the delivery speed and pressure in combination with the infiltration state of the pole to ensure that each pole can absorb the preservative at different infiltration stages. The specific steps are as follows: Step Y1, according to the Bernoulli equation, in a horizontal conveying pipeline, the relationship between the conveying pressure P(t) and the conveying speed v(t) of the preservative is: Where P(t) is the preservative delivery pressure at time t, v(t) is the delivery velocity at time t, ρ is the density of the preservative, v0 is the initial delivery velocity, P atm is the ambient atmospheric pressure; Step S2, based on the adaptive regulation system of feedback control, the flow adjustment of the preservative depends on the error feedback. According to the flow error and the error change rate, the delivery speed and delivery pressure are adjusted. The calculation formula is: Among them, Q abs (t) is the volume flow rate of preservative absorbed by the wooden pole at time t, Q in (t) is the flow rate of the preservative provided by the preservative supply device to the pole surface at time t, K1 is the flow rate proportional gain, which means that when the actual absorption flow rate of the preservative Q abs (t) and supply flow rate Q in K2 is the flow differential gain, which is used to adjust the system's response speed to changes in flow error. K3 is the pressure proportional gain, which means that when the flow error is large, the delivery pressure P(t) is adjusted to compensate for insufficient flow. K4 is the pressure differential gain, which is used to predict the impact of flow changes on pressure in advance. Δt is the time step.

4. The anti-corrosion oil-impregnated anti-corrosion processing equipment for wooden poles according to claim 1 is characterized in that: The preservative storage tank is made of stainless steel and is equipped with an automatic stirring device and a temperature control system. The temperature control system maintains the preservative temperature within the range of 60-80°C.

5. The anti-corrosion oil-impregnated anti-corrosion processing equipment for wooden poles according to claim 1 is characterized in that: The delivery unit includes a metering pump and a corrosion-resistant delivery pipeline. The delivery unit adjusts the preservative delivery rate according to the pole specifications and processing requirements through frequency conversion control technology.

6. The anti-corrosion oil-impregnated anti-corrosion processing equipment for wooden poles according to claim 1 is characterized in that: The flow control unit includes an electronic flow meter, which monitors the preservative flow in real time and adjusts the delivery speed and pressure in combination with the wetting state of the pole; the spraying device adopts a high-pressure atomizing nozzle or ultrasonic spraying technology, and the spraying device performs preliminary anti-corrosion coating treatment on the surface of the pole before the pole enters the wetting tank.

7. The anti-corrosion oil-impregnated anti-corrosion processing equipment for wooden poles according to claim 1 is characterized in that: During the pre-pressurization stage, the high-pressure infiltration module applies a pressure of 0.3MPa-0.5MPa to expel the air inside the wood and allow the wood cell structure to adapt to pressure changes; during the medium-pressure penetration stage, the high-pressure infiltration module increases the pressure to 1.0MPa-1.5MPa, and dynamically adjusts the pressure according to the wood density, moisture content and preservative penetration rate through a pressure feedback control model; during the high-pressure deep penetration stage, the high-pressure infiltration module increases the pressure to 2.0MPa-2.5MPa to push the preservative to penetrate the dense fiber layer of the wood; during the decompression and curing stage, the high-pressure infiltration module gradually reduces the pressure to the external environment pressure, so that the preservative inside the wood reaches equilibrium with the external environment and solidifies.

8. The anti-corrosion oil-impregnated anti-corrosion processing equipment for wooden poles according to claim 1 is characterized in that: The intelligent temperature control system controls the temperature in the infiltration tank within the range of 60-90°C, and the intelligent temperature control system includes a temperature sensor, a heating module, a cooling module and an intelligent control unit; the temperature sensor detects the temperature data in the infiltration tank and transmits the data to the intelligent control unit; the heating module adopts electric heating or steam heating; the cooling module adopts a water cooling system or an air cooling system; the intelligent control unit adopts a PID control algorithm to automatically adjust the operating speed of the heating module or the cooling module according to the temperature sensor data to maintain the temperature in the infiltration tank stable.

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