A drainage system for intelligent heat preservation and self-adaptive conditioning and descaling of a highway tunnel in a cold region

Abstract

The application discloses a kind of cold region highway tunnel intelligent heat preservation and self-adapting conditioning scale removal drainage system, belong to cold region tunnel engineering and intelligent sensing control technical field;It includes: drainage subsystem, heat preservation subsystem, scale removal subsystem and intelligent control subsystem;Drainage subsystem includes the central drainage pipe buried along the longitudinal direction of tunnel, the longitudinal drainage pipe symmetrically arranged in the two sides of central drainage pipe, annular drainage blind pipe and transverse drainage pipe;Heat preservation subsystem includes icing monitoring device and heat preservation device;Scale removal subsystem includes water quality detection device, dredging scale removal device, conditioning scale inhibition device.The application is fed back in real time by icing monitoring device and water quality detection device, when water temperature and water pressure exceed preset threshold, start the heating layer of heat preservation device, so that the temperature in drainage pipe rises rapidly to appropriate temperature;When water quality exceeds preset threshold, start dredging scale removal device or conditioning scale inhibition device, dredge crystallization, silt or scale in drainage pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cold region tunnel engineering and intelligent sensing control technology, and particularly relates to a cold region highway tunnel intelligent heat preservation and self-adaptive conditioning and descaling drainage system. BACKGROUND

[0002] With the vigorous development of transportation infrastructure construction in cold regions and the continuous increase in scale, the number of cold region tunnels is showing an increasing trend. Correspondingly, the requirements for heat preservation and drainage of cold region tunnels are becoming increasingly stringent. Current existing tunnel drainage and heat preservation measures, such as heat preservation water ditch, central deep buried water ditch, heat preservation water outlet, etc., mostly belong to passive heat preservation form. Such passive heat preservation measures often fail to effectively ensure the smoothness of tunnel drainage, and are prone to cause water freezing, thereby inducing frozen damage in the tunnel interior, posing a serious challenge to the stability and safety of the tunnel structure. Moreover, the existing technology overlooks the special geographical environmental factors of the northeast and northwest regions, such as hard water and easy formation of scale, and lacks sufficient and systematic consideration of the influence of scale deposition in the drainage pipe or ditch on drainage. In fact, these scale deposits will gradually erode the effective diameter of the pipe, causing increased flow resistance, decreased drainage capacity, and even complete blockage of the pipe in severe cases, thereby posing a serious threat to the smooth operation of the tunnel drainage system and the safe operation of the entire tunnel project.

[0003] As can be seen from the above, there are generally two main factors for poor drainage of cold region tunnels, one is the freezing and blockage of water in the drainage pipe, and the other is the crystallization and blockage of scale in the drainage pipe. In some cold region tunnels with hard water, freezing and blockage and scale blockage often occur simultaneously, but a single dredging treatment method cannot achieve good drainage effect in engineering practice. In cold environments, the tunnel experiences large temperature changes, which can cause the tunnel drainage pipe to freeze and even break in severe cases. Traditional passive heat preservation often fails to prevent freezing in environments with large temperature differences. In areas with abundant precipitation or groundwater, due to the large amount of water, a large amount of sediment particles carried by high turbidity water in the original water will settle in the pipe to form sediment. At the same time, corrosion and scale formation will occur when the water quality is hard, the carbon dioxide content in the water is high, the pH is low, and the water is erosive. For example, calcium and magnesium ions in water combine with bicarbonate ions in water to form magnesium carbonate, calcium carbonate and other substances, which are difficult to dissolve in water and become sediment and scale. In addition, when using active heat preservation means to prevent water freezing, water evaporation is more likely to form scale, which can cause poor drainage and affect the normal use of the entire tunnel. Moreover, since the drainage pipe is often arranged under the tunnel road, it is difficult to repair and solve the above problems, which has a great impact on the opening and operation of the tunnel.

[0004] In some extreme climate areas, due to the long duration of negative temperature or the existence of extreme low temperature, the central drainage pipe of the highway tunnel also freezes, causing the entire drainage system of the tunnel to be nearly inoperable, and the water seeping into the tunnel cannot be discharged in time, which induces the tunnel to be more seriously frozen. In addition, in cold environments, the key parts of the tunnel, such as the circumferential drainage pipe, the longitudinal drainage pipe, the transverse drainage pipe and their connecting parts, are frozen due to local low temperature, causing slow water flow. In addition, the water seeping into the surrounding rock usually contains metal ions, acid ions and is mixed with rock and soil particles, colloids and other substances. In addition, some metal ions and acid ions or alkaline ions react with each other, which is prone to accumulate or scale in these locations to reduce the water section of the drainage pipe, and even directly block the drainage pipe. On the other hand, during the freezing process of the tunnel in the cold region, water salt continuously migrates, causing the salt concentration of the water in some drainage sections to gradually increase and crystallize, and the crystals continuously grow to gradually block the drainage pipe of the tunnel. In the cold season engineering practice, heating is often used to prevent and alleviate the freezing of the tunnel, and the low-temperature evaporation in the tunnel surrounding rock and the drainage system continues, on the one hand, inducing the ion concentration of the water seeping into the tunnel to be relatively high, and on the other hand, the water entering the tunnel drainage system will continue to evaporate to further increase the ion concentration, so it is particularly easy to form scale inside the drainage pipe.

[0005] In summary, the existing tunnel drainage insulation has obvious deficiencies in areas with large temperature differences. At the same time, the treatment of the scale problem is also lacking, mainly in that it cannot be thawed in time when the drainage freezes, and there is a lack of effective treatment methods when the scale affects the drainage system.

[0006] Therefore, it is necessary to provide a cold region highway tunnel intelligent insulation and self-adaptive conditioning and descaling drainage system. SUMMARY

[0007] The purpose of the present application is to provide a cold region highway tunnel intelligent insulation and self-adaptive conditioning and descaling drainage system to solve the problem that the existing tunnel drainage insulation system lacks active insulation means and descaling measures in areas with large temperature differences, hard water and abundant groundwater, resulting in freezing of the tunnel drainage pipe and blockage of the drainage pipe.

[0008] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0009] A cold region highway tunnel intelligent insulation and self-adaptive conditioning and descaling drainage system, comprising a drainage subsystem, an insulation subsystem, a descaling subsystem and an intelligent control subsystem;

[0010] The drainage subsystem comprises a central drainage pipe buried along the longitudinal direction of the tunnel, longitudinal drainage pipes symmetrically arranged on both sides of the central drainage pipe and circumferential drainage blind pipes, and transverse drainage pipes for connecting the central drainage pipe and the longitudinal drainage pipes.

[0011] The heat preservation subsystem comprises an icing monitoring device and a heat preservation device;

[0012] The icing monitoring device comprises a water temperature sensor and a water pressure sensor arranged adjacently on the inner bottom of the central drain pipe;

[0013] The heat preservation device comprises a heating layer, a heat preservation layer, a first waterproof layer and a second waterproof layer wrapped on the outer side of the wall of the central drain pipe, and a first anti-attachment layer located on the inner side of the wall of the central drain pipe;

[0014] The descaling subsystem comprises a water quality detection device, a dredging and descaling device, and a conditioning and scale inhibition device;

[0015] The water quality detection device is in a plurality of numbers, and the plurality of water quality detection devices are respectively installed on the inner bottom of the longitudinal drain pipe and the transverse drain pipe;

[0016] The dredging and descaling device is in a plurality of numbers, and the plurality of dredging and descaling devices are respectively installed in the longitudinal drain pipe and the transverse drain pipe; the dredging and descaling device is arranged at intervals with the water quality detection device;

[0017] The conditioning and scale inhibition device comprises a conditioning agent storage assembly, a conditioning agent feeding assembly, and a second anti-attachment layer;

[0018] The conditioning agent storage assembly is arranged on the inner side of the secondary lining of the tunnel, close to the annular drain blind pipe, and located at the upper part of the longitudinal drain pipe and the transverse drain pipe;

[0019] The conditioning agent feeding assembly is arranged near the connection between the longitudinal drain pipe and the transverse drain pipe, and the liquid inlet end of the conditioning agent feeding assembly is connected with the liquid outlet end of the conditioning agent storage assembly;

[0020] The intelligent control subsystem mainly comprises an intelligent identification and control device;

[0021] The intelligent identification and control device is fixedly connected to the inner side edge of the secondary lining of the tunnel, and the heat preservation device, the icing monitoring device, the water quality detection device, the dredging and descaling device, and the conditioning and scale inhibition device are all connected with the intelligent identification and control device in line.

[0022] Further, the water quality detection device comprises a water quality detection device body, and a pH value monitoring element, a metal ion monitoring element, a turbidity monitoring element, a flow rate monitoring element, and a temperature monitoring element connected at intervals in sequence on the water quality detection device body; one side of the water quality detection device body is connected with a first line unit.

[0023] Further, the dredging and descaling device comprises a protective shell connected with the inner wall of the longitudinal drain pipe and the transverse drain pipe;

[0024] One side of the protective shell is connected with a support frame, a driving motor is installed in the middle of the support frame, a blade unit is drivingly connected with the driving end of the driving motor, and the blade unit is arranged in the protective shell; a second line unit is connected with the top of the driving motor;

[0025] The protective shell extends outward by a predetermined distance along the radial direction of the protective shell to form a flange at one end close to the support frame, and a plurality of mounting holes are formed in the circumference of the flange.

[0026] Further, the adjusting agent storage assembly comprises a storage tank body connected outside the longitudinal drain pipe, the inside of the storage tank body stores water quality adjusting agent, the inside of the storage tank body is provided with a water quality adjusting agent monitoring unit, the outside of the storage tank body is covered with a heat preservation unit, two ring hoops are symmetrically arranged on the top and bottom of the heat preservation unit, and a lateral fixing unit is connected to each ring hoop; a transmission pipe is connected to the bottom of the storage tank body;

[0027] A detachable tank cover is connected to the top of the storage tank body; and a sealing strip is arranged between the storage tank body and the tank cover;

[0028] A tank cover handle and a warning display lamp are connected to the tank cover at intervals, a water quality adjusting agent supplementing opening is formed in the tank cover, the water quality adjusting agent supplementing opening is located on the side of the tank cover handle away from the warning display lamp, and a detachable sealing cover is connected to the water quality adjusting agent supplementing opening.

[0029] Further, the longitudinal drain pipe is communicated with the transverse drain pipe through a tee pipe.

[0030] Further, the water quality adjusting agent feeding assembly comprises a release nozzle, a conveying hose, a nozzle mounting sealing cover, a tee pipe and a second anti-adhesion layer.

[0031] The release nozzle is fixedly installed on the top of the tee pipe through the nozzle mounting sealing cover.

[0032] The liquid inlet end of the conveying hose is communicated with the transmission pipe at the bottom of the storage tank body, and the liquid outlet end of the conveying hose is communicated with the liquid inlet end of the release nozzle.

[0033] Further, the intelligent identification and control device comprises a control cabinet, a central processing unit, an inverter and a data storage assembly which are sequentially installed in the control cabinet, and the inverter and the data storage assembly are in line connection with the central processing unit.

[0034] The present application has the following advantages:

[0035] The present application can judge the risk of ice blockage in the drainage pipe by analyzing the water temperature, water pressure and water quality data in the pipe when the water temperature and water pressure reach the preset threshold value, and start the heating layer of the heat preservation device to heat up, so that the temperature in the central drainage pipe rises quickly to an appropriate temperature, preventing the water in the drainage pipe from being blocked due to freezing. When the water quality reaches the preset threshold value, the dredging and descaling device or the water quality adjusting and scale inhibiting device is started to dredge the drainage pipe and adjust the water quality. At the same time, the central processing unit analyzes and predicts the data fed back by the water quality detection device in real time, controls the water flow rate by rotating the speed of the rotating blades of the dredging and descaling device, and effectively flushes and peels off the scale and sediments. When the intelligent identification and control device judges that there is still a risk of blockage in the drainage pipe, the appropriate amount of water quality adjusting agent is released by the adjusting agent dispensing assembly to effectively prevent scale formation. Due to the use of the active heat preservation scheme, the water in the drainage pipe evaporates, making it easier for the drainage pipe to precipitate scale and block the drain. By installing the rotating blade control assembly of the dredging and descaling device, the problem of pipe blockage is effectively prevented. These technical features directly bring significant social, economic and technical effects, improve the reliability and energy utilization efficiency of the system, and are particularly suitable for the practical application of tunnel drainage in cold regions and areas with abundant water and hard water quality.

[0036] In addition, through data analysis and storage by the central processing unit, the tunnel heat preservation and descaling are self-adaptive and intelligent, ensuring stable operation of the system under different environmental conditions, further prolonging the service life of the tunnel drainage system, significantly improving the overall performance and reliability of the system, and helping the stable operation of the tunnel in cold regions. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A tunnel transverse section diagram is provided for the present application;

[0038] Figure 2 A tunnel drainage subsystem plane diagram is provided for the present application;

[0039] Figure 3 A tunnel three-dimensional structure diagram is provided for the present application;

[0040] Figure 4 An enlarged structure diagram of the water quality detection device is provided for the present application;

[0041] Figure 5 An enlarged structure diagram of the central drainage pipe and heat preservation device is provided for the present application;

[0042] Figure 6 An enlarged structure diagram of the adjusting agent storage assembly is provided for the present application;

[0043] Figure 7An enlarged structure diagram of the dredging and descaling device provided by the present application Figure 1 ;

[0044] Figure 8 An enlarged structure diagram of the dredging and descaling device provided by the present application Figure 2 ;

[0045] Figure 9 An enlarged structure diagram of the conditioner dispensing assembly provided by the present application

[0046] Figure 10 An enlarged structure diagram of the intelligent identification and control device provided by the present application

[0047] Figure 11 An intelligent identification and control working flow chart of the heating subsystem provided by the present application

[0048] Figure 12 An adaptive identification and control working flow chart of the dredging and descaling device provided by the present application

[0049] Figure 13 An adaptive identification and control working flow chart of the conditioning and scale inhibition device provided by the present application

[0050] 1, heat preservation device; 11, central drain pipe; 12, first waterproof layer; 13, heating layer; 14, heat preservation layer; 15, second waterproof layer; 16, water pressure sensor; 17, water temperature sensor; 18, first anti-adhesion layer; 2, transverse drain pipe; 3, longitudinal drain pipe; 4, annular drain blind pipe; 5, intelligent identification and control device; 51, central processing unit; 52, control cabinet; 53, inverter; 54, data storage assembly; 6, tunnel secondary lining; 7, conditioner storage assembly; 71, storage tank body; 711, heat preservation unit; 712, conditioner monitoring unit; 713, lateral fixing unit; 714, ring hoop; 715, transmission pipe; 716, sealing strip; 72, tank cover; 721, early warning display lamp; 722, tank cover handle; 723, conditioner supplementing opening; 724, sealing cover; 73, water quality conditioner; 8, dredging and descaling device; 81, driving motor; 82, support frame; 83, protective shell; 84, blade unit; 85, mounting hole; 86, second circuit unit; 9, water quality detection device; 91, pH value monitoring element; 92, metal ion monitoring element; 93, turbidity monitoring element; 94, flow rate monitoring element; 95, temperature monitoring element; 96, first circuit unit; 10, conditioner dispensing assembly; 101, release nozzle; 102, nozzle mounting sealing element; 103, tee; 104, conveying hose; 105, second anti-adhesion layer. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0052] The present application provides a kind of intelligent heat preservation and self-adaptive conditioning scale removal drainage system of cold region highway tunnel, it includes drainage subsystem, heat preservation subsystem, scale removal subsystem and intelligent control subsystem;

[0053] As Figures 1-2 As shown, drainage subsystem includes the central drainage pipe 11 buried along the longitudinal direction of tunnel, longitudinal drainage pipe 3 and annular drainage blind pipe 4 symmetrically arranged on the both sides of central drainage pipe 11 and the transverse drainage pipe 2 for communicating central drainage pipe 11 and longitudinal drainage pipe 3;Longitudinal drainage pipe 3 is communicated with transverse drainage pipe 2 by three-way pipe 103.Heat preservation device includes heating layer 13 covered outside central drainage pipe 11, heat preservation layer 14, first waterproof layer 12 and second waterproof layer 15 and first anti-attachment layer 18 in the inside of the wall of central drainage pipe 11.

[0054] Heating layer 13 is a kind of heat tracing system that can heat evenly, and its working principle is to heat through internal resistance wire or electric heating element.When heating layer 13 is connected to power supply, current passes through conductor, and the heat generated by resistance is evenly distributed along heat tracing tape, and is transferred to central drainage pipe.The core heating element of heating layer 13 is metal resistance wire, which is usually covered in insulating material and has a waterproof or corrosion-resistant outer layer.When heat tracing tape is powered on, current passes through resistance wire, and resistance wire generates heat due to resistance effect, and the generated heat is transferred to the pipeline through the insulating layer.

[0055] In the present application, first anti-attachment layer 18 is provided on the inside of the wall of central drainage pipe 11 to inhibit or slow down water attachment and ice and scale crystallization accumulation on the pipe wall;Heating layer 13 is provided on the outer wall of central drainage pipe to provide heat for active heat preservation, and carbon fiber heating tape can be used for heating layer 13.Heat preservation layer 14 is provided outside heating layer 13 to accumulate heat to melt ice and reduce heat loss, so as to achieve the effect of passive heat preservation, and polyurethane, polystyrene, rock wool, aerogel and other materials can be used for heat preservation layer.First waterproof layer 12 and second waterproof layer 15 are respectively provided outside central drainage pipe 11 and outside heat preservation layer 14 to prevent moisture from entering heat preservation layer 14 and heating layer 13, so as to ensure heat preservation effect and heating effect.

[0056] As Figure 5As shown, the monitoring device includes a water temperature sensor 17 and a water pressure sensor 16 arranged adjacent to the inner bottom of the central drain pipe 11; wherein the water temperature sensor 17 is arranged in the central drain pipe 11 for real-time monitoring of the water temperature change of the drain pipe. The water temperature sensor 17 can adopt NTC thermistor or PT100 thermocouple. The water pressure sensor 16 is arranged adjacent to the water temperature sensor 17, which can adopt one or several of pressure water level sensor, optical liquid level sensor or resistance type liquid level sensor. When the water freezes, the ice will expand in volume and generate additional pressure on the lower side of the inner wall of the central drain pipe 11, which can be detected by the water pressure sensor 16 in real time. The intelligent control subsystem can more accurately judge the degree of ice formation in the drain pipe by analyzing the water temperature and water pressure sensor data.

[0057] The present application provides a kind of intelligent heat preservation and self-adaptive conditioning scale removal of drainage system in cold region highway tunnel, wherein, scale removal subsystem includes water quality detection device 9, dredging scale removal device 8, conditioning scale inhibition device.

[0058] Wherein, the number of water quality detection device 9 is several, and several water quality detection devices 9 are respectively installed on the inner bottom of the longitudinal drain pipe 3 and the transverse drain pipe 2.

[0059] As shown in the figure, Figure 4 Water quality detection device 9 includes water quality detection element body, and pH value monitoring element 91, metal ion monitoring element 92, turbidity monitoring element 93, flow rate monitoring element 94 and temperature monitoring element 95 connected to water quality detection device body in sequence and interval, one side of water quality detection device body is connected with first line unit 96. Water quality detection device 9 is installed on the inner bottom of longitudinal drain pipe 3 and transverse drain pipe 2, and can real-time feedback metal ion concentration (such as Ca ion concentration, Mg ion concentration, etc.), pH value, turbidity, flow rate and water temperature in water quality. Water quality detection device transmits these data to intelligent identification and control device 5 as the basis for judging pipe scale risk or silt risk.

[0060] Water quality detection device 9 evaluates water quality by measuring changes in physical, chemical or biological parameters in water. Different types of water quality detection device 9 use different principles according to the specific parameters measured. Common water quality detection device 9 includes conductivity sensor, pH sensor, dissolved oxygen sensor, turbidity sensor, etc. Conductivity sensor evaluates ion concentration in water by measuring the conductivity of water solution, which depends on electrolytes (such as salt, minerals, acid and alkali, etc.) in solution, which will make ions in water charged, allowing current to pass through. pH sensor is used to measure hydrogen ion (H +) concentration. pH value reflects the acidity or alkalinity of water, usually between 0 and 14, 7 is neutral, less than 7 is acidic, and greater than 7 is alkaline. Turbidity sensor is used to measure the concentration of suspended particulate matter in water, so as to evaluate the transparency and quality of water. Suspended matter in water will scatter or absorb light, and the sensor judges the turbidity of the water body by detecting the intensity of scattered light. ORP sensor is used to measure the oxidation-reduction potential of aqueous solution to evaluate the oxidizing or reducing property of the solution. ORP value is determined by measuring the flow trend of electrons in the solution, reflecting the concentration of substances that can accept or release electrons in the solution. Ion selective electrode (ISE) sensor is used to measure the concentration of specific ions, such as chloride ion, sodium ion, potassium ion, etc. The electrode of ISE sensor is coated with a film that can selectively react with the target ion, and the potential change generated by the electrode when the ion passes through the film is related to the concentration of the ion.

[0061] The application provides a drainage system for intelligent heat preservation and self-adaptive conditioning and descaling of a highway tunnel in a cold region, wherein a plurality of dredging and descaling devices 8 are arranged in the interior of the longitudinal drainage pipe 3 and the transverse drainage pipe 2 respectively; and the dredging and descaling devices 8 are arranged at intervals with the water quality detection device 9.

[0062] As shown in Figure 8 The dredging and descaling device 8 comprises a protective shell 83 for connecting with the inner wall of the longitudinal drainage pipe 3 and the transverse drainage pipe 2; the protective shell 83 extends outward by a predetermined distance along the radial direction of the protective shell 83 at one end close to the support frame 82 to form a flange, and a plurality of mounting holes 85 are arranged on the flange in the circumferential direction.

[0063] One side of the protective shell 83 is connected with the support frame 82, the middle part of the support frame 82 is provided with a driving motor 81, and the top of the driving motor 81 is connected with a second line unit 86.

[0064] The driving end of the driving motor 81 is drivingly connected with a blade unit 84, and the blade unit 84 is arranged in the protective shell 83 in a gap mode.

[0065] The blade unit 84 comprises a plurality of rotating blades, the rotating blades are designed in a spiral shape, the material of the rotating blades is selected from corrosion-resistant and high-strength materials, and the edges of the rotating blades are reinforced and sharpened, and the main functions are as follows:

[0066] (1) The scouring force of water flow on the pipe wall is enhanced, the adhesion and deposition of scale or crystals on the pipe wall are inhibited, the scale or crystals that have been adhered and deposited around the pipe wall are removed in time, and the scale or crystals are prevented from blocking the pipeline due to the agglomeration and blockage of the scale or crystals at the position of the pipe wall under the joint action of the first anti-adhesion layer 18.

[0067] (2) The fast rotation of the rotating blades increases the water flow rate in the drain pipe, and the accumulation, crystallization and scale growth in the water body are limited, and the fast water flow can easily flush out the accumulation, crystallization and scale in the longitudinal drain pipe 3 and the transverse drain pipe 2.

[0068] (3) The sharp rotating blades can break up the large accumulation groups, crystallization blocks and scales moving with the water flow, and the broken small particles are more easily discharged out of the longitudinal drain pipe 3 and the transverse drain pipe 2.

[0069] (4) The blade unit 84 can also have the effect of heat preservation drainage. When the rotating blades rotate at high speed in the water, friction will occur between the rotating blades and the water. This friction will intensify the movement of water molecules, thereby causing the water temperature to rise. The rotation of the rotating blades will cause strong stirring and mixing of the water, which enables the water at different temperatures, such as the lower water temperature at the pipe wall position and the higher water temperature at the center of the water pipe, to be fully mixed, thereby increasing the overall water temperature. In addition, the acceleration of the water flow speed in the drain pipe can increase the freezing point of water, and alleviate or inhibit the freezing of water in the drain pipe.

[0070] The rotating blades improve the water flow rate and rely mainly on the physical effects of fluid dynamics, mechanical rotation and water flow acceleration to achieve effective scale removal. This process increases the scouring force of the water flow by accelerating the water flow and generating vortexes, thereby stripping the scale and deposits on the inner wall of the pipe. The increase in water flow rate is the key to scale removal. Fluid dynamics shows that the kinetic energy of water flow (proportional to the square of the speed) determines its scouring force on the inner wall of the pipe. By introducing a rotating blade device into the drain pipe, the rotation of the blades will guide the local acceleration of the water flow. This process generates high flow rate areas, causing the kinetic energy of the water flow to increase when passing through the blades, and the scouring effect on the inner wall of the pipe to be enhanced. The design of the rotating blades not only accelerates the water flow rate, but also forms local high and low pressure areas in the pipe. These pressure fluctuations alternately act on the scale, similar to the water hammer effect, causing the scale to be repeatedly impacted by pressure and gradually weakened and stripped. At the same time, the rotating blades continue to rotate under the push of the water flow and system control, so that the water flow in the pipe is constantly in an accelerated and vortex state. This continuous action makes it difficult for the drain system to accumulate new scale, keeping the pipe unblocked. In addition to the rotating blades improving the water flow rate and scale removal, pipe dredging machines, rotating cleaners, pneumatic or mechanical vibration cleaning, etc. can also be used, but the complexity and cost of the scheme need to be considered.

[0071] The application provides a drainage system for intelligent heat preservation and self-adaptive conditioning and descaling of a highway tunnel in a cold region.

[0072] The water quality conditioner dispensing and scale inhibition is mainly based on chemical reaction. The water quality conditioner reacts with minerals in scale to dissolve or destroy the structure of scale, thereby removing the scale from the pipeline. Scale is usually an insoluble deposit formed by alkaline earth metal ions such as calcium and magnesium in water and anions such as carbonate and sulfate. Common scale components include calcium carbonate (CaCO3), calcium sulfate (CaSO4), etc. The action principle of the water quality conditioner usually includes: acidic chemical descaling, chemical descaling of chelating agents, electrochemical descaling, etc. In order to prevent causing great pollution to the environment, a physical method, i.e., using a dredging and descaling device, is preferred for descaling, and a relatively mild reagent is usually used in the conditioning and scale inhibition process. When the conditions are met, a purification pool is arranged at the outlet of the tunnel drainage pipe. In addition to the conditioner dispensing control system, manual dispensing or robotic dispensing can also be used, but the complexity and cost of the scheme need to be considered.

[0073] As shown in Figure 6 The conditioner storage assembly includes a storage tank body 71 connected outside the longitudinal drainage pipe 3, which is connected to the release nozzle 101 through a delivery hose 104 to ensure stable supply of the water quality conditioner. The storage tank body 71 stores the water quality conditioner 73, and is provided with a conditioner monitoring unit 712, which includes a volume sensor and a temperature sensor to determine the volume and temperature of the water quality conditioner 73 in the storage tank body 71. When the temperature of the water quality conditioner is abnormal, a warning signal is sent out; when the capacity of the water quality conditioner is lower than the required threshold, a supplement signal is sent out. The storage tank body 71 is covered with a heat preservation unit 711, which can effectively prevent the water quality conditioner from freezing. The top and bottom of the heat preservation unit 711 are symmetrically provided with two ring hoops 714, and each ring hoop 714 is connected with a lateral fixing unit 713. The bottom of the storage tank body 71 is connected with a transmission pipe 715.

[0074] The top of the storage tank body 71 is detachably connected with a tank cover 72, and a sealing strip 716 is arranged between the storage tank body 71 and the tank cover 72; a tank cover handle 722 and a warning display lamp 721 are arranged on the tank cover 72 in an interval manner, and a water quality conditioner supplement opening 723 is formed in the tank cover 72, which is located on the side of the tank cover handle 722 away from the warning display lamp 721; and a sealing cover 724 is detachably connected with the water quality conditioner supplement opening 723.

[0075] As shown in the figure, Figure 9 The conditioner delivery assembly 10 comprises a release nozzle 101, a nozzle mounting sealing piece 102, a tee pipe 103, a conveying hose 104, a second anti-adhesion layer 105, and the release nozzle 101 is fixedly installed on the inner top near the tee pipe 103 through the nozzle mounting sealing piece 102; the liquid inlet end of the conveying hose 104 is communicated with the storage tank body 71, the liquid outlet end of the conveying hose 104 is communicated with the liquid inlet end of the release nozzle 101, and the second anti-adhesion layer 105 is fixed on the inner surface of the drain pipe.

[0076] The storage tank body 71, the sealing strip 716 and the tank cover 72 constitute a closed conditioner storage tank, and the storage tank body 71 is internally provided with a water quality conditioner 73. The release of the water quality conditioner is controlled by an electromagnetic valve, and when the intelligent control subsystem issues an instruction, the electromagnetic valve is opened, and the water quality conditioner is pumped into the drain pipe to perform scale inhibition and adjustment on the drain pipe.

[0077] The water quality conditioner preferably uses scale and corrosion inhibitors, scale and dispersion inhibitors, etc.

[0078] The application provides a drainage system with intelligent heat preservation and self-adaptive conditioning and descaling for a highway tunnel in a cold region.

[0079] The intelligent identification and control device 5 comprises a control cabinet 52 and a central processing unit 51, an inverter 53 and a data storage assembly 54 which are installed in the control cabinet 52 in sequence, and the inverter 53 and the data storage assembly 54 are connected with the central processing unit 51 in a line.

[0080] The central processing unit 51 is provided with an intelligent identification and control program, which specifically includes an intelligent insulation identification and control subprogram and an adaptive conditioning and descaling identification and control subprogram.

[0081] The working process of the intelligent insulation identification and control subprogram is specifically as follows:

[0082] The water temperature sensor 17 and the water pressure sensor 16 feed back the water temperature and water pressure in real time, and the intelligent insulation identification and control subprogram comprehensively identifies and judges the icing risk level. When the parameters of the water pressure sensor 16 and the water temperature sensor 17 are abnormal, the system identifies and judges that the central drainage pipe is blocked by ice and issues a heating instruction. After receiving the instruction, the insulation subsystem starts the heating layer to heat the central drainage pipe. According to the difference between the icing temperature, the icing pressure and the preset threshold value (which is determined according to the actual situation of the tunnel site), the output power of the heating layer 13 is output. At the same time of heating, the output power of the heating layer 13 is dynamically adjusted according to the changes of the water temperature and the water pressure inside the central drainage pipe 11, including the heating power and the heating time. The ice inside the central drainage pipe 11 can be melted, and water evaporation caused by high water temperature can be avoided. Until the water temperature and the water pressure parameters return to the melting state, the system judges that the water flow in the drainage pipe can flow normally. For example, if the heating temperature is too high, the intelligent insulation identification and control subprogram issues a power reduction instruction to prevent water scale or crystallization from accelerating due to high temperature, which may block the pipe. When the pipe icing is relatively serious, the output power is increased to quickly unblock the drainage pipe. Through the adaptive adjustment of the subprogram, the intelligent insulation control of the central drainage pipe is realized.

[0083] The working process of the adaptive conditioning and descaling identification and control subprogram is specifically as follows:

[0084] The adaptive conditioning and descaling identification and control subprogram comprehensively analyzes the turbidity, pH value, metal ion concentration (such as Ca ion concentration and Mg ion concentration), flow rate and water temperature, and compares them with the preset water quality threshold value. When the water turbidity exceeds the threshold value, there is a risk of accumulation, the content of metal ion oxides is too high (exceeding the preset threshold value), which may precipitate crystals or may react with each other to form solidified substances, the pH value is abnormal, there is a potential risk of scaling, and the water flow rate in the drainage pipe is slow, there is a risk of blockage, the blockage level of the drainage pipe is judged, and the descaling device 8 or the conditioning and descaling device is selected to be started according to the actual situation.

[0085] If the degree of blockage of the drain pipe reaches a certain level, the adaptive conditioning and scale removal identification and control subroutine issues an acceleration or deceleration instruction to the dredging and scale removal device 8 to adjust the ability of the drain pipe to transport and discharge water. The subroutine automatically adjusts the output power of the dredging and scale removal device 8 based on real-time feedback from the water quality sensor. When the data detected by the water quality sensor changes, the output power of the dredging and scale removal device 8 is dynamically adjusted. For example, when the blockage of the drain pipe is relatively severe, the output power of the dredging and scale removal device 8 is increased to accelerate the peeling of the attached scale. When the drain pipe gradually becomes unblocked, the output power of the dredging and scale removal device 8 is reduced. When the blockage is alleviated below a preset threshold, a deceleration instruction is issued to the dredging and scale removal device 8 to maintain low-speed operation of the dredging and scale removal device 8.

[0086] With the continuous high-power acceleration of the dredging and scale removal device 8, the adaptive conditioning and scale removal identification and control subroutine comprehensively analyzes data such as water quality, flow rate, and temperature to determine the development of the blockage of the drain pipe. If the scale formation in the water has not significantly improved or is still showing a tendency to worsen, the water quality conditioning and scale inhibition device's conditioner dispensing assembly 10 is activated to release the corresponding type of water quality conditioner 73 through the release nozzle 101 to prevent scale deposition or crystallization in the drain pipe. The amount of water quality conditioner dispensed (including the dispensing time, dispensing rate, and dispensing frequency) is dynamically adjusted based on real-time monitoring data. When the blockage is severe, the amount of water quality conditioner dispensed is increased. When the blockage level is less than a preset threshold, an instruction is issued to stop releasing the water quality conditioner to achieve intelligent control of conditioning and scale inhibition.

[0087] After the water quality conditioning and scale inhibition device's conditioner dispensing assembly 10 is activated, the adaptive conditioning and scale removal identification and control subroutine comprehensively analyzes data such as water quality, flow rate, and temperature to determine the development of the blockage of the drain pipe. When the scale formation in the water significantly improves and decreases to a preset threshold, the conditioner dispensing assembly 10 is turned off, and the rotating blades continue to operate at an accelerated speed. The water quality detection device continues to provide real-time feedback on data such as water quality, flow rate, and water temperature. The subroutine dynamically adjusts the rotational speed of the dredging and scale removal device 8. If the current or potential degree of blockage decreases to a mild level or below, a deceleration instruction is issued to the dredging and scale removal device 8 to maintain low-speed operation of the rotating blades, achieving adaptive control of the rotating blades.

[0088] In combination Figures 11-13 , the present application provides a running step of an intelligent heat preservation and adaptive conditioning and scale removal drainage system for a cold region highway tunnel, which is specifically as follows:

[0089] Step one: After the intelligent heat preservation identification and control subroutine is activated, it enters an initial state, and the water temperature sensor 17 and the water pressure sensor 16 respectively monitor the water temperature and the water pressure.

[0090] Step two: The intelligent insulation identification and control subroutine judges the risk level of the drainage pipe icing. The central processing unit 51 analyzes and processes sensor data to classify the icing temperature and ice pressure into three levels: level I, level II, and level III.

[0091] When the water temperature of the drainage pipe is above zero degrees (freezing point), the temperature is positive, and the water pressure is below the set value, the intelligent insulation identification and control subroutine determines that the drainage pipe is not at risk of icing and blockage. At this time, the icing risk level is level I.

[0092] When the water temperature of the drainage pipe is below zero degrees (freezing point), the temperature is close to the freezing point, and the water pressure gradually increases, the intelligent insulation identification and control subroutine determines that the drainage pipe is in an ice-water mixture state. At this time, the icing risk level is level II.

[0093] When the water temperature of the drainage pipe is below zero degrees (freezing point), the temperature is significantly lower than the freezing point, and the water pressure increases significantly, the intelligent insulation identification and control subroutine determines that the drainage pipe is at risk of icing and blockage. At this time, the icing risk level is level III.

[0094] When the intelligent insulation identification and control subroutine determines that the drainage pipe is at level I, the drainage pipe is not at risk of icing and blockage. The central processing unit 51 accesses the data storage component 54 to store the uploaded data. The intelligent insulation identification and control subroutine directly jumps to step twelve (end) and does not perform subsequent control of the heating layer 13.

[0095] When the intelligent insulation identification and control subroutine determines that the drainage pipe is at level II, it continues to analyze water temperature and water pressure data to predict the potential icing risk level of the drainage pipe. When the intelligent insulation identification and control subroutine predicts that the potential icing risk level of the drainage pipe is level I, it directly jumps to step twelve (end) and does not perform subsequent control of the heating layer 13. When the intelligent insulation identification and control subroutine predicts that the potential icing risk level of the drainage pipe is level III, it determines that the drainage pipe has a potential icing and blockage situation and starts the heating layer 13 for heating.

[0096] When the intelligent insulation identification and control subroutine determines that the drainage pipe is at level III, it determines that the drainage pipe has an icing and blockage situation and starts the heating layer 13 for heating.

[0097] Step three: The intelligent insulation identification and control subroutine starts the insulation device 1. The heating layer 13 receives the heating instruction and starts heating the pipe. The water temperature sensor 17 records the ambient temperature in real time, and the water pressure sensor 16 monitors the water pressure of the drainage pipe in real time. The heating layer 13 installed on the outer wall of the pipe ensures uniform and efficient heating.

[0098] Step four: Intelligent adjustment of heating power

[0099] According to the real-time feedback of water temperature and water pressure data, the intelligent heat preservation identification and control subroutine dynamically adjusts the output power of the heating layer 13, accurately controls the heating time and heating power of the heating layer 13, ensures that the drainage subsystem provides sufficient heat when needed, and at the same time avoids excessive heating, avoids or alleviates the precipitation of scale when the water in the drain pipe is heated and evaporated, thereby clogging the pipe. The specific operation is as follows:

[0100] Adaptive heating power adjustment: the intelligent heat preservation identification and control subroutine automatically adjusts the power of the heating layer 13 according to the real-time feedback of the icing monitoring device, increases the power when the temperature is lower, and appropriately reduces the power when the temperature is higher, to ensure uniform and efficient heating effect.

[0101] Historical data analysis: the central processing unit 51 dynamically optimizes the working time and heating cycle of the heating layer 13 by analyzing historical temperature data and energy consumption records, to avoid long-term heating and excessive energy consumption.

[0102] Data recording: the central processing unit 51 accesses the data storage component 54 to record the time and state of the heating component in the heating layer 13, for subsequent analysis and fault diagnosis.

[0103] Step five: heating layer is closed

[0104] The icing monitoring device real-time feedback of the water temperature and water pressure in the drain pipe, when the temperature is above the freezing point and the water pressure is reduced, the system judges that the icing risk level in the drain pipe is reduced to level I, the central processing unit 51 closes the heating component of the heating layer 13, and at the same time accesses the data storage component 54 to record the heating power and heating time for subsequent data analysis and processing.

[0105] Step six: the water quality detection device 9 installed in the longitudinal drain pipe 3 and the transverse drain pipe 2 real-time feedback of the water turbidity, pH value, metal ion concentration, flow rate and temperature, the adaptive conditioning and scale removal identification and control subroutine analyzes and processes the data obtained by the water quality detection device 9, and comprehensively considers the classification of the longitudinal drain pipe and the transverse drain pipe 2 to the blockage, which is divided into mild blockage, moderate blockage and severe blockage.

[0106] Mild blockage: scale begins to form on the inner wall of the pipe, but has little effect on water flow and pressure. Generally, the turbidity rises slightly, basically maintaining between 10-50 NTU, the flow rate decreases slightly; the calcium and magnesium ion concentration increases slightly, but not significantly. When the adaptive conditioning and scale removal identification and control subroutine judges that the pipe is in mild blockage, the central processing unit 51 accesses the data storage component 54 to store and continuously record the uploaded data.

[0107] Moderate blockage: Scale accumulation to a certain extent, resulting in a significant decrease in heat exchange efficiency, turbidity significantly increased, maintained at 50-200 NTU, flow rate significantly reduced, fluid flow in the pipe is hindered. The concentration of calcium and magnesium ions increased significantly, gradually forming scale. The adaptive conditioning and descaling recognition and control subroutine judges that the pipe is at risk of blockage, and starts the dredging and descaling device 8.

[0108] Severe blockage: Scale is seriously accumulated, resulting in a significant reduction in the water passage section inside the pipe, a significant reduction in water flow, a sharp increase in turbidity, usually more than 200 NTU, and obvious sediment. The flow rate is severely reduced, and even stagnation occurs. The concentration of calcium and magnesium ions is significantly increased, usually more than 100 mg / L, and continuous scaling occurs, while the metal ions in the pipe are continuously concentrated due to scaling. When it is in severe blockage, the adaptive conditioning and descaling recognition and control subroutine simultaneously starts the dredging and descaling device 8 and the conditioning and scale inhibition device.

[0109] Step seven: When the adaptive conditioning and descaling recognition and control subroutine judges that the drain pipe is in mild blockage, it predicts the potential blockage level of the drain pipe according to the data fed back by the water quality detection device. When the predicted potential blockage level of the drain pipe is in mild blockage or no blockage, the rotating blades of the dredging and descaling device 8 are maintained at low speed. When the adaptive conditioning and descaling recognition and control subroutine predicts that the potential blockage level of the drain pipe is in moderate blockage, it issues an acceleration command to the dredging and descaling device 8.

[0110] When the adaptive conditioning and descaling recognition and control subroutine judges that the drain pipe is in moderate blockage, it issues an acceleration command to the dredging and descaling device 8, which effectively flushes and peels off the scale and sediment by accelerating the flow rate of the water flow. The dredging and descaling device 8 is installed inside the horizontal drain pipe 2 and the vertical drain pipe 3. When the pipe has a large scale crystal, the sharp rotating blades will break it into small pieces, allowing the scale to flow out of the drain pipe, preventing the drain pipe from being blocked. At the same time, the adaptive conditioning and descaling recognition and control subroutine has an adaptive adjustment function, which can automatically adjust the acceleration power and acceleration time according to historical data and current water quality conditions, more quickly and effectively handle the scale blockage problem, and realize automatic control of physical descaling of the drain pipe; under certain conditions, the adaptive conditioning and descaling recognition and control subroutine can also set a timing start mode, which starts the dredging and descaling device 8 at regular intervals during periods of high pipe usage or high risk, further improving the anti-scaling effect of the pipe.

[0111] The water quality detection device feeds back water quality data in real time. When the adaptive conditioning and descaling recognition and control subroutine judges that the blockage degree of the drain pipe decreases from moderate blockage to mild blockage or no blockage, it issues a deceleration command to the dredging and descaling device 8, and the rotating blades of the dredging and descaling device 8 remain at low speed.

[0112] When the adaptive conditioning and scale removal identification and control subprogram judges that the drain pipe is in a severe blockage state, the clog removal and scale removal device 8 is adjusted to the maximum acceleration power, and the conditioning and scale inhibition device is started. After the device is running, when the adaptive conditioning and scale removal identification and control subprogram judges that the blockage degree of the drain pipe decreases to a moderate blockage state, the conditioning and scale inhibition device is turned off, the maximum acceleration power output of the rotating blade of the clog removal and scale removal device 8 is maintained, and when the adaptive conditioning and scale removal identification and control subprogram judges that the blockage degree of the drain pipe decreases to a light blockage degree or no blockage, a deceleration command is issued to the rotating blade of the clog removal and scale removal device 8, and the low-speed operation of the rotating blade of the clog removal and scale removal device 8 is maintained.

[0113] Step eight: The water quality detection device 9 installed in the longitudinal drain pipe and the transverse drain pipe feeds back the turbidity, pH value, metal ion concentration, flow rate, and temperature of the water in real time. The intelligent heat preservation identification and control subprogram can also access and analyze the data about the water temperature fed back by the water quality detection device 9 in real time through the central processing unit 51, and divide the temperature of the drain pipe into two levels, i.e., above the freezing point and below the freezing point (icing).

[0114] The intelligent heat preservation identification and control subprogram can also intelligently adjust the operation speed of the rotating blade of the clog removal and scale removal device 8 through the central processing unit 51.

[0115] When the temperature of the drain pipe is above the freezing point, the low-speed operation of the rotating blade of the clog removal and scale removal device 8 is maintained.

[0116] When the temperature is below the freezing point, the intelligent heat preservation identification and control subprogram issues an acceleration command to the rotating blade of the clog removal and scale removal device 8 through the central processing unit 51. When the rotating blade of the clog removal and scale removal device 8 rotates at a high speed in the water, the water flows at a high speed and is not easy to freeze. At the same time, friction is generated between the blade and the water. This friction can intensify the movement of water molecules, thereby causing the water temperature to rise to a certain extent. The acceleration power of the rotating blade of the clog removal and scale removal device 8 is adjusted adaptively according to the temperature data fed back by the water quality detection device 9 in real time. When the intelligent heat preservation identification and control subprogram accesses and judges that the temperature of the drain pipe rises to above the freezing point through the central processing unit 51, a deceleration command is issued to the rotating blade of the clog removal and scale removal device 8, and the low-speed operation of the rotating blade of the clog removal and scale removal device 8 is maintained.

[0117] Step nine: The water quality detection device 9 feeds back the pH value, turbidity, metal ion concentration, flow rate, and temperature in real time. When the adaptive conditioning and scale removal identification and control subprogram judges that the drain pipe is in a severe blockage state, the rotating blade of the clog removal and scale removal device 8 is first adjusted to maintain the maximum acceleration power operation, and after the maximum acceleration power operation of the rotating blade, the water quality conditioning and scale inhibition device is started. The specific operation is as follows:

[0118] Automatic injection of water quality conditioner: The adaptive conditioning and scale removal identification and control subroutine analyzes the data fed back by the water quality detection device 9 in real time, and starts the conditioner injection assembly 10 of the water quality conditioning and scale inhibition device. The conditioner injection assembly 10 of the water quality conditioning and scale inhibition device is placed near the tee joint to ensure that the water quality conditioner and the water flow are in full contact. The adaptive conditioning and scale removal identification and control subroutine sends instructions, the electromagnetic valve opens, the water quality conditioner is automatically injected into the drain pipe, and further formation of scale is prevented to block the drain pipe.

[0119] Selection of water quality conditioner: Different water quality conditioners are selected for different water quality conditions. When the reagent is actually injected, the type of reagent should be accurately selected in combination with the water quality detection data, and mild scale inhibition reagent should be used as much as possible to avoid causing large pollution to the environment.

[0120] Adaptive conditioning: The adaptive conditioning and scale removal identification and control subroutine has an adaptive conditioning function. It can optimize the injection amount of the water quality conditioner according to historical data and current water quality conditions to avoid over-injection or insufficient injection. At the same time, according to the change of water quality and the actual demand of the pipeline, the injection amount (including injection rate, injection time, and injection frequency) of the water quality conditioner can be automatically adjusted each time to achieve the best scale removal effect and the minimum consumption of reagent, and to prevent causing large pollution to the environment.

[0121] Timed injection mode: Under certain conditions, the adaptive conditioning and scale removal identification and control subroutine can also set a timed injection mode. That is, during the period when the crystallization probability of the drain pipe is high or the scale formation risk is high, the automatic injection of the water quality conditioner is performed at regular intervals to further improve the scale inhibition effect of the pipeline.

[0122] System alarm function: When the water quality conditioner level in the conditioner storage assembly is lower than the set requirement value, an early warning is automatically sent to prompt the staff to supplement the water quality conditioner. In addition, if the conditioner injection assembly fails or abnormally injects, the adaptive conditioning and scale removal identification and control subroutine will also feed back abnormal data and automatically send an alarm.

[0123] Step ten: After the adaptive conditioning descaling identification and control subroutine starts the regulator injection assembly 10 of the water quality conditioning and scale inhibition device, the water quality conditioner 73 in the storage tank body 71 is transmitted to the release nozzle 101 through the transmission pipe 715 and the delivery hose 104. The water quality conditioner monitoring unit 712 is arranged in the storage tank body 71 to monitor the remaining dose of the water quality conditioner. When the dose of the water quality conditioner 73 in the storage tank body 71 is insufficient, the warning light on the tank cover 72 will light up, and at the same time, the insufficient dose of the water quality conditioner 73 will also be transmitted to the central processing unit 51 and warning data will be issued to prompt the staff to add the water quality conditioner 73 through the replenishment port on the tank cover 72 to prevent the condition of insufficient dose of the water quality conditioner 73. The water quality conditioner monitoring unit 712 monitors the temperature of the water quality conditioner 73 in the storage tank body 71 in real time, sets a threshold value according to the freezing point of different water quality conditioners 73, and when the temperature is lower than the threshold value, the warning light on the tank cover 72 will also light up, and at the same time, the condition of too low temperature will be transmitted to the central processing unit 51 and warning data will be issued to give an early warning of freezing of the water quality conditioner 73.

[0124] After the water quality conditioner is injected, the water quality detection device 9 feeds back the water quality data in real time. When the adaptive conditioning descaling identification and control subroutine judges that the drain pipe has decreased from severe blockage to moderate blockage, the central processing unit 51 closes the regulator injection assembly 10 of the water quality conditioning and scale inhibition device, and accesses the data storage assembly 54 to record the water quality conditioner injection amount, injection time, injection rate, injection frequency for subsequent analysis and fault diagnosis.

[0125] Step eleven: After the regulator injection assembly 10 of the water quality conditioning and scale inhibition device is closed, the water quality detection device 9 continues to feed back the water quality data in real time. When the adaptive conditioning descaling identification and control subroutine judges that the drain pipe changes from moderate blockage to mild blockage or does not reach the degree of mild blockage, the speed-down instruction is issued to the rotating blades of the dredging and descaling device 8, and the low-speed operation of the rotating blades of the dredging and descaling device 8 is maintained, and at the same time, the central processing unit 51 accesses the data storage assembly 54 to record the data such as the acceleration time and acceleration power of the rotating blades of the dredging and descaling device 8 for subsequent analysis and fault diagnosis. If the adaptive conditioning descaling identification and control subroutine judges that the drain pipe is still at the moderate blockage level, the system repeats step seven (acceleration of the rotating blades of the dredging and descaling device 8).

[0126] Step twelve: The central processing unit 51 ends the current running period and starts the next cycle. Through periodic detection and processing, the central processing unit 51 ensures that in the environment with large temperature difference and abundant water, the heating layer 13 has high heating efficiency, the dredging and descaling device 8 has strong anti-blocking function, and the conditioning and scale inhibition device has stable conditioning and descaling performance. The specific operation is as follows:

[0127] System reset: all monitoring devices, detection devices and actuators enter standby state, keep the low-speed operation of the rotating blades of the dredging and descaling device 8, and wait for the next instruction of the central processing unit 51. The system enters a low-power standby state and waits for the start of the next cycle.

[0128] Data recording: the central processing unit 51 records all data of the current operation cycle by accessing the data storage component 54 for subsequent analysis and fault diagnosis.

[0129] The present application provides a kind of with adjusting scale to avoid causing pipeline blockage and cold region highway tunnel intelligent active heat preservation drainage system, avoid the phenomenon of freezing, expansion, blockage in the tunnel drainage pipe in cold region, water quality is slightly hard and water-rich environment.

[0130] The present application is through the real-time feedback of icing monitoring device and water quality detection device, and the central processing unit 51 is analyzed and judged water temperature, water pressure and water quality data in the drainage pipe, identifies the risk of icing and blockage in the drainage pipe when water temperature and water pressure reach the preset threshold, starts the heating layer of heat preservation device 1 to heat, makes the temperature in the central drainage pipe quickly rise to appropriate temperature, prevents the water in the drainage pipe from being blocked due to freezing;When water quality reaches the preset threshold, start dredging and descaling device 8 and conditioning scale inhibition device, dredge scale and adjust water quality in the drainage pipe. At the same time, the central processing unit 51 analyzes and predicts the data fed back by the water quality detection device in real time, and releases an appropriate amount of water quality conditioner through the conditioner releasing assembly 10 of the water quality conditioning and scale inhibition device to effectively prevent scale formation. Since the active heat preservation scheme is used, the water in the drainage pipe evaporates, which makes the scale in the drainage pipe more likely to be precipitated, and the drainage pipe is blocked, and the installation of the rotating blade control assembly of the dredging and descaling device 8 effectively prevents the problem of pipeline blockage. These technical features directly bring significant social, economic and technical benefits, improve the reliability and energy utilization efficiency of the system, and are particularly suitable for the practical application of tunnel heat preservation and drainage in cold regions and tunnel water-rich, water quality slightly hard areas.

[0131] In addition, through the data analysis and storage of the central processing unit 51, the self-adaptation and intelligence of the tunnel heat preservation and descaling are realized, the stable operation of the system under different environmental conditions is ensured, the service life of the tunnel drainage system is further prolonged, the overall performance and reliability of the system are significantly improved, and the stable operation of the tunnel in cold regions is helped.

[0132] The above described embodiments are only to illustrate the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modification and improvement made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A drainage system for intelligent insulation and adaptive temperature regulation and descaling in highway tunnels in cold regions, characterized in that, It includes a drainage subsystem, an insulation subsystem, a descaling subsystem, and an intelligent control subsystem; The drainage subsystem includes a central drainage pipe (11) buried along the longitudinal direction of the tunnel, longitudinal drainage pipes (3) symmetrically arranged on both sides of the central drainage pipe (11) and a circumferential drainage blind pipe (4), and a transverse drainage pipe (2) for connecting the central drainage pipe (11) and the longitudinal drainage pipes (3); the longitudinal drainage pipes (3) are connected to the transverse drainage pipes (2) through a tee pipe (103); The insulation subsystem includes an icing monitoring device and an insulation device (1). The icing monitoring device includes a water temperature sensor (17) and a water pressure sensor (16) disposed adjacent to the bottom of the central drain pipe (11). The heat preservation device (1) includes a heating layer (13), a heat preservation layer (14), a first waterproof layer (12), a second waterproof layer (15) covering the outside of the central drain pipe (11) and a first anti-adhesion layer (18) located inside the central drain pipe (11). The descaling subsystem includes a water quality testing device (9), a descaling and cleaning device (8), and a conditioning and scale inhibition device; The number of water quality testing devices (9) is several, and several of the water quality testing devices (9) are respectively installed at the bottom of the longitudinal drainage pipe (3) and the transverse drainage pipe (2); The number of the dredging and descaling devices (8) is several, and several of the dredging and descaling devices (8) are respectively installed inside the longitudinal drain pipe (3) and the transverse drain pipe (2); the dredging and descaling devices (8) are arranged at intervals with the water quality testing device (9); The unclogging and descaling device (8) includes a protective shell (83) for connecting to the inner walls of the longitudinal drain pipe (3) and the transverse drain pipe (2). A support frame (82) is connected to one side of the protective shell (83), and a drive motor (81) is installed in the middle of the support frame (82). A blade unit (84) is driven and connected to the drive end of the drive motor (81), and the blade unit (84) is disposed inside the protective shell (83). A second circuit unit (86) is connected to the top of the drive motor (81). The protective shell (83) extends radially outward from one end near the support frame (82) to form a flange, and the flange is provided with a plurality of mounting holes (85) in the circumferential direction. The conditioning and scale inhibition device includes a conditioner storage component (7), a conditioner dispensing component (10), and a second anti-adhesion layer (105). The regulator storage component (7) is located on the inner side of the tunnel secondary lining (6), close to the circumferential drainage blind pipe (4), and above the longitudinal drainage pipe (3) and the transverse drainage pipe (2); The conditioner storage assembly (7) includes a storage tank body (71) connected to the outside of the longitudinal drain pipe (3). The storage tank body (71) stores water quality conditioner (73) inside. A water quality conditioner monitoring unit (712) is installed inside the storage tank body (71). The storage tank body (71) is covered with a heat insulation unit (711). Two rings (714) are symmetrically fitted on the top and bottom of the heat insulation unit (711). A lateral fixing unit (713) is connected to each ring (714). A transmission pipe (715) is connected to the bottom of the storage tank body (71). The top of the storage tank body (71) is connected to a detachable tank cover (72); a sealing strip (716) is provided between the storage tank body (71) and the tank cover (72). The can lid (72) is connected at intervals with a can lid handle (722) and a warning indicator light (721). The can lid (72) has a water quality conditioner replenishment port (723), which is located on the side of the can lid handle (722) away from the warning indicator light (721). A detachable sealing cap (724) is connected to the water quality conditioner replenishment port (723). The regulator dispensing component (10) is located near the connection between the longitudinal drain pipe (3) and the transverse drain pipe (2), and the inlet end of the regulator dispensing component (10) is connected to the outlet end of the regulator storage component (7). The regulator dispensing assembly (10) includes a release nozzle (101), a nozzle mounting sealing cap (102), a three-way pipe (103), a delivery hose (104), and a second anti-adhesion layer (105). The release nozzle (101) is fixedly installed on the top of the tee pipe (103) via the nozzle mounting sealing cap (102); The inlet end of the delivery hose (104) is connected to the transmission pipe (715) at the bottom of the storage tank body (71), and the outlet end of the delivery hose (104) is connected to the inlet end of the release nozzle (101). The intelligent control subsystem includes an intelligent identification and control device (5). The intelligent identification and control device (5) is fixedly connected to the inner edge of the secondary lining (6) of the tunnel. The heat preservation device, the icing monitoring device, the water quality testing device (9), the dredging and descaling device (8) and the conditioning and scale inhibition device are all connected to the intelligent identification and control device (5).

2. The intelligent thermal insulation and adaptive conditioning and descaling drainage system for cold-region highway tunnels according to claim 1, characterized in that, The water quality testing device (9) includes a water quality testing device body, and a pH value monitoring element (91), a metal ion monitoring element (92), a turbidity monitoring element (93), a flow rate monitoring element (94), and a temperature monitoring element (95) connected sequentially and at intervals on the water quality testing device body. A first line unit (96) is connected to one side of the water quality testing device body.

3. The intelligent thermal insulation and adaptive conditioning and descaling drainage system for highway tunnels in cold regions according to claim 1, characterized in that, The intelligent identification and control device (5) includes a control cabinet (52) and a central processing unit (51), an inverter (53) and a data storage component (54) installed sequentially in the control cabinet (52). The inverter (53) and the data storage component (54) are respectively connected to the central processing unit (51).

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