High-strength grouting material supporting and intelligent maintenance system for fan foundation

Abstract

The invention provides a fan foundation high-strength grouting material supporting and intelligent maintenance system which comprises a supporting structure and an intelligent maintenance structure, the supporting structure comprises steel formworks distributed around the circumference of the side edge of a fan foundation high-strength grouting material, and gaps between the upper ends of the steel formworks and the side face of the fan foundation high-strength grouting material are filled with elastic pieces; the intelligent maintenance structure comprises a sensor, a controller and a maintenance cover capable of containing the fan foundation, a keel support is arranged on the inner side of the maintenance cover, a heat preservation layer is arranged in the maintenance cover, a plurality of water pipes with sprayers are arranged at the position, at the upper end of the fan foundation, in the maintenance cover, and a heater is arranged in the middle of the maintenance cover. A sensor is arranged on the fan foundation high-strength grouting material and used for detecting temperature or / and humidity, and the controller is used for controlling actions of the heater or / and the spray head according to detection results of the sensor. The supporting and intelligent maintenance functions of the high-strength grouting material of the fan foundation can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of fan foundations, and in particular relates to a high-strength grouting material support and intelligent maintenance system for a fan foundation. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Onshore wind turbines are widely distributed in many areas. Some areas have dry climate, large temperature difference between day and night, and poor maintenance conditions for wind turbine foundation concrete. After the wind turbine foundation is poured, high-strength grouting material is filled in the reserved annular groove between the anchor plate and the foundation concrete. It has the characteristics of good self-flow, fast hardening, early strength, high strength, no shrinkage, and micro expansion. As an important node connecting the wind turbine tower and the foundation, the grouting section not only plays the role of transmitting the extreme load of the wind turbine, but also plays the role of bearing the fatigue load of the wind turbine operation.

[0004] If the temperature difference between morning and evening in the wind farm is large, the effective construction time is short, the air humidity in the wind farm is low, and the water loss during the construction process is fast, and the high-strength grouting cement-based water-cement ratio has a small control floating range, humidity is extremely sensitive to the strength of the grouting material, and high requirements are placed on the fineness of the material. The construction process is greatly affected by the external environment and it is difficult to control the process quality; the entire process of high-strength grouting filling requires self-retention and leveling, and requires dense, uniform, and durable construction, which puts strict requirements on the pouring and maintenance quality during the construction process.

[0005] According to the relevant provisions of the "Technical Specifications for the Application of Cement-based Grouting Materials" (GB / T50448-2015), the construction site should formulate a quality management system, construction quality control and quality inspection system, prepare a construction organization design or construction technical plan before grouting, and prepare mixing machines, grouting equipment, templates and maintenance items before grouting construction. Due to the lack of mature grouting material templates and maintenance devices, the quality of the finished grouting material on site is unqualified and cracks occur from time to time, such as Figure 3 As shown, (a) is a simple curing device, (b) is a rough curing measure, (c) is cracking of the grouting material, and (d) is the breaking and falling of the grouting material. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes a high-strength grouting material support and intelligent maintenance system for fan foundation, which can provide guarantee for the quality of the finished product of high-strength grouting material, improve the support quality of the grouting material, and automatically control the temperature and humidity during the maintenance process.

[0007] According to some embodiments, the present invention adopts the following technical solutions:

[0008] A high-strength grouting material support and intelligent maintenance system for a fan foundation, comprising a support structure and an intelligent maintenance structure, wherein:

[0009] The support structure includes a steel template distributed around the circumference of the side of the fan foundation high-strength grouting material, and the gap between the upper end of the steel template, the side of the fan foundation high-strength grouting material and the top surface of the fan foundation high-strength grouting material is filled with elastic parts;

[0010] The intelligent maintenance structure includes a sensor, a controller and a maintenance cover capable of accommodating the fan foundation. A keel support is provided on the inner side of the maintenance cover. An insulation layer is provided inside the maintenance cover. A plurality of water pipes with nozzles are provided inside the maintenance cover and at the upper end of the fan foundation. A heater is provided in the middle of the maintenance cover. A sensor is provided on the high-strength grouting material of the fan foundation for detecting temperature and / or humidity. The controller is used to control the action of the heater and / or the nozzle according to the detection result of the sensor.

[0011] As an optional embodiment, the elastic member is a solid rubber chamfered strip, and the elastic member has at least three sides, the first side abuts against the inner side of the steel formwork, the second side is flush with the upper end surface of the high-strength grouting material of the fan foundation, and the third side abuts against the upper side edge of the high-strength grouting material of the fan foundation.

[0012] As an optional implementation, the height of the steel formwork is greater than or equal to the height of the high-strength grouting material of the wind turbine foundation.

[0013] As an optional implementation, the maintenance cover is a circularly distributed structure, such as a cylinder, a truncated cone, etc.

[0014] As an optional embodiment, the material of the maintenance cover is coarse canvas;

[0015] A layer of polyethylene film is attached to the inner side of the curing cover;

[0016] A plurality of photovoltaic components are arranged outside the maintenance cover, and the photovoltaic components are connected to the controller and the sensor through a connecting circuit.

[0017] As an optional embodiment, the heater is an annular heating coil, including at least one group. If there are multiple groups of annular heating coils, the annular heating coils are arranged side by side.

[0018] As an optional implementation, the water pipe is arranged in a ring around the maintenance cover, and a plurality of nozzles are arranged on the water pipe. The water pipe is connected to the water supply tank, and a control valve and a water pump are arranged on the connecting pipeline;

[0019] Or further, the nozzles are evenly arranged, and each nozzle has a control switch.

[0020] As an optional embodiment, the nozzle is a water mist nozzle, and the water pipe includes a water distribution branch pipe and a water distribution main pipe. The water distribution branch pipe is used to directly install the water mist nozzle, and the water mist nozzle is installed on the top of the maintenance cover. A vertical riser is installed between the water distribution branch pipe and the water mist nozzle. The water distribution main pipe is used to supply water to each water distribution branch pipe, and the water distribution main pipe and the water distribution branch pipe constitute the water distribution pipeline of the system;

[0021] A terminal water testing device is provided at the water mist nozzle farthest from the water supply tank.

[0022] As an optional implementation, the radius of the bottom circle of the water mist cone of the water mist nozzle is calculated based on the distance between the nozzle of the water mist nozzle and the top surface of the high-strength grouting material of the fan foundation and the atomization angle of the water mist nozzle;

[0023] The distance between adjacent water mist nozzles is determined according to the width of the high-strength grouting material of the fan foundation and the radius of the bottom circle of the water mist cone, and then the curvature between adjacent water mist nozzles is calculated.

[0024] As an optional embodiment, the controller is configured to compare the temperature detected by the sensor with a preset target temperature, and if the detected temperature is lower than the preset target temperature, start the heater to heat, and if the detected temperature is higher than the preset target temperature, start at least part of the nozzles to spray and cool;

[0025] Or / and, the humidity detected by the sensor is compared with a preset target humidity, and if the detected humidity is less than the preset target humidity, at least part of the nozzles are started to spray and humidify.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The invention is provided with an annular steel template and an elastic member according to the design size of the high-strength grouting material. The annular steel template and the elastic member are fixed by glass glue, which has the advantages of simple manufacturing and reusability, and can effectively support the high-strength grouting material.

[0028] The present invention monitors the ambient temperature and humidity in real time and compares the detection results with the target temperature to determine the control amount of the heating device. When the ambient temperature deviates from the target temperature, the control system will adjust the working state of the heating and humidification equipment to make the ambient temperature and humidity gradually approach the target temperature and humidity, thereby achieving the effect of precise maintenance.

[0029] The number and structural parameters of the water mist nozzles arranged in the present invention are determined by calculation according to the spray intensity, the maintenance area, and the flow rate of the water mist nozzles selected by the system, so as to achieve uniform and direct spraying and complete coverage of the maintenance surface.

[0030] The present invention provides power for the temperature and humidity control system through a photovoltaic energy storage system, realizes temperature and humidity monitoring and automatic adjustment, ensures that the high-strength grouting material of the fan foundation is maintained under a heat-insulating and moisture-retaining state to reach a high-strength state, greatly improves the quality of the finished product, and provides a guarantee for the safe operation of the fan.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0033] Figure 1 It is a cross-sectional view of a fan foundation in the prior art;

[0034] Figure 2 It is a schematic diagram of the anchor bolt position of a wind turbine foundation in the prior art;

[0035] Figure 3 It is a schematic diagram of maintenance problems in the prior art;

[0036] Figure 4 It is a schematic diagram of the formwork support required by the specification for secondary grouting;

[0037] Figure 5 This is the schematic diagram after trimming required by the specification for secondary grouting;

[0038] Figure 6 is a schematic diagram of a high-strength grouting material support structure of an embodiment;

[0039] Figure 7 This is a schematic diagram of a high-strength grouting material curing structure according to an embodiment;

[0040] Figure 8 is a schematic diagram of a temperature and humidity control system of an embodiment;

[0041] Fig. 9 is a functional schematic diagram of a temperature and humidity linkage control system of an embodiment;

[0042] Fig.10 is an operation flow chart of a temperature and humidity control system of an embodiment;

[0043] Fig.11 is a diagram of an electric sprinkler water control system of an embodiment;

[0044] Fig.12 This is a layout diagram of a ring-shaped pipe network heating and humidifying device according to an embodiment;

[0045] Fig.13 is a schematic diagram of a water mist nozzle according to an embodiment;

[0046] Fig.14 The figure is a schematic diagram of the positional relationship between water mist nozzles in an embodiment. DETAILED DESCRIPTION

[0047] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0048] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] In the absence of conflict, the embodiments in this application and the features in the embodiments may be combined with each other.

[0051] Embodiment 1

[0052] First, necessary terminology explanations and background descriptions are given.

[0053] High-strength grouting material for wind turbine foundation: Most wind turbine foundations are circular extended foundations, which are connected to the upper tower using prestressed anchor bolt assemblies. The anchor bolt assemblies consist of 2 rows of evenly distributed high-strength prestressed anchor bolts. The cap height is about 3-4m and the diameter is about 20m. Figure 1 shown.

[0054] After the foundation is poured, the foundation pit is backfilled with soil and rocks in layers and compacted to the top of the pedestal. A circular groove is reserved between the upper anchor plate and the main concrete of the foundation, such as Figure 2 As shown, the depth of the annular groove is about 140mm, and cement-based grouting materials must be used for grouting. The design requires that the selection, construction, and maintenance of grouting materials should be carried out in accordance with the "Technical Specifications for the Application of Cement-Based Grouting Materials" (GB / T 50448-2015). The standard value of the 28d compressive strength of the grouting material is not less than 120MPa. The grouting material is required to have no shrinkage, self-leveling, non-toxic, anti-fatigue, anti-corrosion (rust) and durability.

[0055] According to the regulations, during the secondary grouting, the horizontal distance between the template and the equipment base should be 100mm; the elevation of the top of the template should not be lower than 50mm below the upper surface of the equipment base. Figure 4 As shown in the figure, after the equipment foundation is grouting, it is advisable to cut a 45° bevel outward along the edge of the bottom plate 3h to 6h after grouting, as shown in the figure. Figure 5 shown.

[0056] Under the above background and regulatory requirements, this embodiment provides a high-strength grouting material support and intelligent maintenance system for a wind turbine foundation, such as Figure 6 As shown, it includes a support structure and an intelligent maintenance structure, wherein:

[0057] The support structure includes a steel template distributed around the circumference of the side of the fan foundation high-strength grouting material, and the gap between the upper end of the steel template, the side of the fan foundation high-strength grouting material and the top surface of the fan foundation high-strength grouting material is filled with elastic parts;

[0058] The intelligent maintenance structure includes a sensor, a controller and a maintenance cover capable of accommodating the fan foundation. A keel support is provided on the inner side of the maintenance cover. An insulation layer is provided inside the maintenance cover. A plurality of water pipes with nozzles are provided inside the maintenance cover and at the upper end of the fan foundation. A heater is provided in the middle of the maintenance cover. A sensor is provided on the high-strength grouting material of the fan foundation for detecting temperature and / or humidity. The controller is used to control the action of the heater and / or the nozzle according to the detection result of the sensor.

[0059] The following is a detailed introduction to each part.

[0060] First, there is the supporting structure, which is formed by bonding an annular steel formwork 1 and a rubber solid chamfer strip 2 (in this embodiment, serving as an elastic member). The annular steel formwork 1 provides circumferential support around the formwork of the high-strength grouting material, and the rubber solid chamfer strip 2 is arranged between the annular steel formwork 1 and the formwork of the high-strength grouting material to protect the edge and side of the formwork of the high-strength grouting material.

[0061] The inner side of the rubber solid chamfer strip 2 is set to a 45° arc chamfer. The arc chamfer design is more conducive to the dispersion of structural stress, which is safe and reliable, and the construction is convenient and quick.

[0062] The specific manufacturing dimensions of the two are determined according to the design dimensions of the high-strength grouting material. In this embodiment, the annular steel template 1 and the rubber solid chamfered strip 2 are fixed by glass glue, which has the advantages of simple manufacturing and reusability.

[0063] In addition, this embodiment is based on the industry standard "Technical Specifications for Construction of Cement-Based Grouting Materials" YB / T9261, which stipulates that cement-based grouting materials can be cured by artificial heating, such as steam curing, greenhouse curing, electric blanket curing, and iodine tungsten lamp curing. Sufficient water retention and moisture retention measures should be taken, and the curing temperature should not exceed 65°C. A curing structure for high-strength grouting materials is provided.

[0064] like Figure 7 As shown, it includes a curing cover. The curing cover of this embodiment is made of coarse canvas 3, and foam particles 4 are filled in the coarse canvas 3 to play a role in heat insulation. In addition, a polyethylene film is attached to the inner side of the coarse canvas 3 to effectively reduce the evaporation of water. The water pipe 5 with a nozzle is fixed inside the coarse canvas 3 by a buckle. The keel support 7 of the curing cover is used to support the protective cover. In this embodiment, the keel support 7 of the curing cover can be made of 5mm wide and 2mm thick aluminum alloy strips, with a spacing of 0.5m, and fixed to the coarse canvas 3 by a sticky buckle.

[0065] Of course, in other embodiments, other materials or sizes may be used. Aluminum alloy has the unique advantages of high strength, corrosion resistance, and light weight, and can play a good supporting role.

[0066] The temperature and humidity dual-sensor 8 and the heating coil 6 are connected to the temperature and humidity control system to collect the surface temperature and humidity of the grouting material and heat it. The heating coil 6 is arranged inside the curing cover, and the temperature and humidity dual-sensor 8 is arranged above or on the upper surface of the high-strength grouting material.

[0067] like Figure 8 As shown, the temperature and humidity control system is also provided with a temperature and humidity controller 9, a photovoltaic panel 10 and a portable energy storage battery 11. During the day, the photovoltaic panel 10 generates electricity and stores it in the portable energy storage battery 11 to provide power for the temperature and humidity controller 9. In addition, the temperature and humidity controller 9 is also provided with an insulated water tank, which is also equipped with a heating device to ensure that the water sprayed onto the concrete surface does not cause excessive temperature difference and cause cracking of the high-strength grouting material.

[0068] The temperature and humidity control system is connected to a water pipe 5 with a sprinkler (i.e., a water mist nozzle), a heating coil 6, and a temperature and humidity dual-measurement sensor 7, and is used to collect temperature and humidity data. After system processing, it determines whether heating or humidification is required, and controls the sprinkler of the water pipe 5 and / or the heating coil 6 to issue relevant instructions.

[0069] like Fig.13 As shown, a plurality of spray nozzles / water mist nozzles are arranged on the water pipe 5 to form a water spray humidification system. The water mist nozzle adopts a centrifugal atomization type water mist nozzle. Under the action of a relatively high water pressure, the water flow is decomposed into fine water droplets in a jet state. Within the physical angle range of the water mist nozzle, the sprayed mist water forms a cone with a small and uniform particle size, and a high protective cooling efficiency.

[0070] The setting principle of the basic design parameters of the water spray humidification system is to ensure the spraying effect by reasonably setting the nozzles. The most important principle is to spray the spray evenly and directly and completely cover the maintenance surface. The number of nozzles arranged should be determined by calculation based on the spray intensity, maintenance area, and flow rate of the water mist nozzles selected by the system.

[0071] In this embodiment, the calculation formula of the radius of the bottom circle of the water mist cone is:

[0072]

[0073] Where R is the radius of the bottom circle of the water mist cone, m;

[0074] B—the distance between the nozzle of the water mist nozzle and the protection surface of the protected object, m;

[0075] θ—atomization angle of the water mist nozzle;

[0076] Considering that the height of the anchor bolt in this embodiment is B as 0.3m and θ is 120°, R is obtained as 0.3m, which is exactly half of the width of the grouting material and meets the maintenance requirements.

[0077] In addition, the width b of the grouting material is 0.7m, and the radius R of the bottom circle of the water mist cone is 0.519m. According to the geometric relationship, Fig.14 As shown, the calculated nozzle arrangement spacing s is 0.766m, and the corresponding arc is calculated to be 18°, that is, a water mist nozzle humidification sprinkler is arranged every 18°, and a total of 20 water mist nozzles are required. The specific arrangement is shown in Figure 8 shown.

[0078] The water spray intensity of the water mist nozzle is designed to be 6L / (min·m 2 ), the nozzle working pressure is 0.1MPa, and the water output q of each K=80 nozzle is:

[0079]

[0080] The pump head or the system water supply pressure should be calculated as follows:

[0081] p=∑h+p0+H=0.07×20+0.02+0.5×10×0.001=1.425MPa

[0082] Where:

[0083] p—water pump head or water supply pressure at the system inlet, MPa;

[0084] ∑h—the cumulative value of pipeline head and local head loss, the water flow indicator takes the value of 0.02; the water mist nozzle valve takes the value of 0.07, Mpa;

[0085] H—The elevation difference between the nozzle at the most unfavorable point and the lowest water level in the water tank, 0.5m, MPa.

[0086] like Fig.10 As shown, the temperature and humidity control system receives the signal from the temperature and humidity dual-sensor through the centralized temperature and humidity controller, and acts on the humidification spray controller and the temperature controller after processing, wherein the humidification spray controller is connected to the three parts of the sprayer, the water valve and the water tank, and the temperature controller is connected to the two parts of the annular heating coil and the temperature control valve. The centralized temperature and humidity controller is placed in the temperature and humidity controller 9, which can display the temperature and humidity and provide terminal operation, and is connected to the portable energy storage battery 11 to provide power for it.

[0087] like Fig.11 As shown in the figure, the temperature and humidity control system is based on the negative feedback principle, that is, by real-time monitoring of ambient temperature and humidity, and comparing the detection results with the target temperature, the control amount of the heating equipment is determined. When the ambient temperature deviates from the target temperature, the control system will adjust the working state of the heating and humidification equipment (i.e., the spraying equipment) to make the ambient temperature and humidity gradually approach the target temperature and humidity.

[0088] To achieve the above functions, in this embodiment, Fig.12 As shown, the water pipe 5 and the water tank a, the water pump c, the check valve d, and the gate valve b form an electric sprinkler water control system. The water tank a is connected to the water pump c through a pipeline, and the gate valve b is arranged on the pipeline. The water pump c is connected to the water distribution main g through a connecting pipeline, and the check valve d and the water flow indicator f and the water pump connector e are arranged on the connecting pipeline.

[0089] The water pipe 5 includes a water distribution branch pipe i and a water distribution main pipe g. The water distribution branch pipe i is used to directly install the water mist nozzles h. Each water mist nozzle h is installed on the top of the maintenance cover. A vertical riser needs to be installed between the water distribution branch pipe i and the water mist nozzles h.

[0090] The main pipeline that supplies water to each water distribution branch pipe i is called the water distribution main pipe g. The water distribution main pipe g and each water distribution main pipe g form the water distribution pipeline of the system.

[0091] In order to test the basic performance of the system and its special components, a terminal water testing device j is set at the very end to ensure the functionality of the water mist nozzle at the farthest end of the water distribution pipeline.

[0092] Of course, in some embodiments, the water mist nozzles work together.

[0093] In some embodiments, each water mist nozzle is equipped with an independent switch and can work independently to control the number of water mist nozzles and further control the spraying amount.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made by those skilled in the art within the spirit and principle of the present invention without creative labor shall be included in the protection scope of the present invention.

Claims

1. A high-strength grouting material support and intelligent maintenance system for fan foundation, characterized in that: It includes support structure and intelligent maintenance structure, including: The support structure includes a steel template distributed around the circumference of the side of the fan foundation high-strength grouting material, and the gap between the upper end of the steel template, the side of the fan foundation high-strength grouting material and the top surface of the fan foundation high-strength grouting material is filled with elastic parts; The intelligent maintenance structure includes a sensor, a controller and a maintenance cover capable of accommodating the fan foundation. A keel support is provided on the inner side of the maintenance cover. An insulation layer is provided inside the maintenance cover. A plurality of water pipes with nozzles are provided inside the maintenance cover and at the upper end of the fan foundation. A heater is provided in the middle of the maintenance cover. A sensor is provided on the high-strength grouting material of the fan foundation for detecting temperature and / or humidity. The controller is used to control the action of the heater and / or the nozzle according to the detection result of the sensor.

2. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation as claimed in claim 1, characterized in that: The elastic member is a solid rubber chamfered strip, and the elastic member has at least three sides, the first side abuts against the inner side of the steel formwork, the second side is flush with the upper end surface of the high-strength grouting material of the fan foundation, and the third side abuts against the upper side edge of the high-strength grouting material of the fan foundation.

3. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation as claimed in claim 1, characterized in that: The height of the steel formwork is greater than or equal to the height of the high-strength grouting material for the fan foundation.

4. A high-strength grouting material support and intelligent maintenance system for a fan foundation as claimed in claim 1, characterized in that: The maintenance cover is a circular distribution structure.

5. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation as claimed in claim 1 or 4, characterized in that: The material of the curing cover is coarse canvas; A layer of polyethylene film is attached to the inner side of the curing cover; A plurality of photovoltaic components are arranged outside the maintenance cover, and the photovoltaic components are connected to the controller and the sensor through a connecting circuit.

6. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation as claimed in claim 1, characterized in that: The heater is an annular heating coil, including at least one group. If there are multiple groups of annular heating coils, the annular heating coils are arranged side by side.

7. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation as claimed in claim 1, characterized in that: The water pipe is arranged in a ring around the maintenance cover, and a plurality of nozzles are arranged on the water pipe. The water pipe is connected to the water supply tank, and a control valve and a water pump are arranged on the connecting pipeline; Or further, the nozzles are evenly arranged, and each nozzle has a control switch.

8. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation according to claim 1 or 7, characterized in that: The nozzle is a water mist nozzle, and the water pipe includes a water distribution branch pipe and a water distribution main pipe. The water distribution branch pipe is used to directly install the water mist nozzle, and the water mist nozzle is installed on the top of the maintenance cover. A vertical riser is installed between the water distribution branch pipe and the water mist nozzle. The water distribution main pipe is used to supply water to each water distribution branch pipe. The water distribution main pipe and the water distribution branch pipe constitute the water distribution pipeline of the system; A terminal water testing device is provided at the water mist nozzle farthest from the water supply tank.

9. A high-strength grouting material support and intelligent maintenance system for a wind turbine foundation as claimed in claim 1, 7 or 8, characterized in that: The bottom circle radius of the water mist cone of the water mist nozzle is calculated based on the distance between the nozzle of the water mist nozzle and the top surface of the high-strength grouting material of the fan foundation and the atomization angle of the water mist nozzle; The distance between adjacent water mist nozzles is determined according to the width of the high-strength grouting material of the fan foundation and the radius of the bottom circle of the water mist cone, and then the curvature between adjacent water mist nozzles is calculated.

10. A high-strength grouting material support and intelligent maintenance system for wind turbine foundation according to claim 1, characterized in that: The controller is configured to compare the temperature detected by the sensor with a preset target temperature, and start the heater to heat if the detected temperature is lower than the preset target temperature, and start at least part of the nozzles to spray and cool if the detected temperature is higher than the preset target temperature; Or / and, the humidity detected by the sensor is compared with a preset target humidity, and if the detected humidity is less than the preset target humidity, at least part of the nozzles are started to spray and humidify.

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