Intelligent protection device for large-scale power plant equipment and use method

By using an adjustable and modular base and column structure, combined with water level detection and audible and visual alarms, the system solves the problems of flexibility and intelligent early warning in the protection devices of large power plant equipment, achieving highly adaptable and integrated equipment protection, and improving operation and maintenance efficiency and safety.

CN121281218APending Publication Date: 2026-01-06CHINA YANGTZE POWER
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Patent Information

Application Number
CN202511364488.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-01-06

AI Technical Summary

Technical Problem

Existing protective devices for large power plant equipment suffer from poor flexibility, limited functionality, lack of intelligent early warning capabilities, and insufficient integration. They cannot adapt to changes in equipment layout, detect water levels, quickly switch protection states, or provide remote alarms.

Method used

It adopts an adjustable and modular base and column structure, combined with a water level detection system, audible and visual alarm, and wireless transmission, to achieve multiple protection modes and water accumulation warning. It also integrates cable storage and protection and supports remote alarm.

Benefits of technology

It achieves high adaptability, intelligence and integration of protective devices, reduces production costs and installation cycle, improves operation and maintenance efficiency, reduces the impact of failures and ensures equipment safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an intelligent protection device for large-scale power plant equipment and a use method, and aims to solve the problems of poor flexibility, single function and lack of intelligent early warning of an existing protection device. The device comprises a base, a stand column, a baffle, a water level detection system and an audible and visual alarm, the base is provided with a splicing structure and can be flexibly combined, the stand column can be turned over, the angle of the stand column is locked through a pin rod, and the baffle is detachably fixed through magnetic attraction or clamping; the water level detection system can adjust sensitivity and remotely give an alarm when accumulated water exceeds a threshold value; the wire row seat is used for arranging cables and is waterproof and isolated. When the audible and visual alarm is damaged, on-site warning and remote signal transmission are triggered. The device can realize three deployments of foundation protection, reinforcement protection and ponding early warning, adapts to equipment operation and maintenance working conditions, improves protection suitability, safety and operation and maintenance efficiency, and is suitable for protection of key equipment of a large power plant.
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Description

Technical Field

[0001] This invention relates to the field of power equipment safety protection technology, specifically to an intelligent protection device for large power plant equipment and its usage method. Background Technology

[0002] Large power plants, as core infrastructure for energy supply, have critical equipment and areas such as steam turbine generators, main transformers, high-voltage control cabinets, and cable trays operating under high loads and multiple environmental disturbances for extended periods. This equipment not only involves large investments and high maintenance costs, but its operational stability directly determines the reliability of the power grid. If equipment shutdowns are caused by external impacts, water immersion, unauthorized contact, or cable faults, it can lead to regional or even grid-wide power outages, causing hundreds of millions of yuan in economic losses and potentially triggering safety accidents. Therefore, comprehensive and intelligent protection of critical equipment in large power plants is a crucial link in ensuring the safe operation of the power system.

[0003] However, existing protective devices for large power plant equipment have the following significant shortcomings in practical applications: 1. Existing protective devices are mostly integrated fixed structures or standard-sized splicing parts, which cannot flexibly adjust the splicing length and shape according to the equipment layout. Customized structures are required for different equipment, which not only results in high production costs and long installation cycles, but also makes it difficult to adapt to the layout changes after equipment modification. 2. Areas such as underground cable layers, equipment foundations, and under cooling towers in power plants are prone to water accumulation due to pipe leaks, rainwater backflow, and condensation buildup. Existing protective devices can only physically isolate personnel from accessing equipment and cannot detect water levels or provide early warnings. Water seeping into equipment casings or cable joints can easily cause insulation breakdown and short circuits. Furthermore, fault detection relies on manual inspections, which can lead to delayed responses and potentially amplify the impact of the fault. 3. Basic warning protection is required during equipment operation, and enhanced enclosure protection is required during maintenance. Existing protective devices cannot quickly switch between the two states: if a basic protective structure is used, a temporary enclosure needs to be built during maintenance, while if an enhanced protective structure is used, it will occupy space during normal operation, affect equipment heat dissipation and inspection, and the operation is cumbersome and inefficient. 4. The signal cables and control cables connected to the equipment are the core of the power system's communication and control; existing protection devices do not integrate cable storage and protection into their design. 5. Existing protective devices rely on a "physical isolation + manual inspection" model. When the protective structure is accidentally damaged, it cannot immediately trigger an alarm. Although some devices are equipped with warning lights, they can only provide on-site reminders and cannot remotely transmit signals to the monitoring center. As a result, maintenance personnel have difficulty detecting abnormalities in a timely manner, and fault handling is delayed. Summary of the Invention

[0004] To address the aforementioned issues, this invention proposes an intelligent protection device and its usage method for large power plant equipment. This addresses problems such as poor flexibility, limited functionality, lack of intelligent early warning capabilities, and insufficient integration in large power plant equipment protection devices, while also meeting the power plant's requirements for "high adaptability, high security, intelligence, and integration" in equipment protection.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A smart protection device for large power plant equipment includes a base and a column. The side section of the base is trapezoidal. A vertical plate is fixedly installed inside the base. A partition is vertically connected between the side surface of the vertical plate and the inner surface of the base. A column that can be rotated up and down is movably placed between the vertical plates. A baffle is detachably placed on the upper end of the base. A water level detection system is also installed on the partition. The water level detection system includes a water level alarm.

[0006] In a preferred embodiment, a connecting hole is provided between the end of the column and the upright plate, the rotating shaft passes through the connecting hole and enables the column to rotate around the axis of the rotating shaft, and threaded connectors are integrally formed at both ends of the rotating shaft. The locking disc is threadedly engaged with the threaded connectors to lock and fix the position of the rotating shaft. The side of the column and the rotating shaft are provided with corresponding pin holes. After the pin passes through the pin hole, the rotation angle of the column can be locked and fixed.

[0007] In a preferred embodiment, a T-shaped slot is provided on one side of the base, and a T-shaped rail is fixedly provided on the other side of the base. The base is connected end to end to the T-shaped rail of the adjacent base through the T-shaped slot, so as to realize the splicing and fixing of multiple sets of bases.

[0008] In a preferred embodiment, magnetic absorbing plates are fixedly arranged at equal intervals along the length direction on the upper end surface of the upright plate. The upright plate is magnetically connected to the baffle through the magnetic absorbing plates, so that the baffle can be detachably fixed.

[0009] In a preferred embodiment, water-permeable holes are equidistantly provided at the side end face of the bottom of the base along the height direction, and corresponding water-permeable holes are provided at the bottom end face of the upright plate to quickly drain the water accumulated in the base.

[0010] In a preferred embodiment, the water level detection system includes a water level alarm, which is perpendicularly mounted to the partition. The outer wall of the water level alarm is machined with external threads, and the water level alarm is threadedly connected to the partition through the external threads. A water level probe is fixedly mounted at the bottom of the water level alarm. By rotating the water level alarm, the distance between the water level probe and the bottom end face of the base can be adjusted to adjust the water accumulation detection sensitivity.

[0011] In the preferred embodiment, a wire rack is placed on the upper surface of the partition, and various signal cables are fixed in the wire rack to achieve neat storage and waterproof isolation of the cables.

[0012] In the preferred embodiment, a limiting groove is provided at the end of the column along the length direction. When the column is flipped vertically upward to be perpendicular to the base, both ends of the baffle can engage with the limiting groove to form a closed enclosure. An audible and visual alarm is also engaged within the limiting groove, enabling its fixed installation.

[0013] In the preferred embodiment, a locking plate is vertically fixed at the bottom of the audible and visual alarm. The locking plate is inserted into a limiting groove, and corresponding insertion holes are opened on the limiting groove and the locking plate. After the safety pin passes through the insertion hole, it locks the position of the audible and visual alarm in place. When the safety pin is disengaged from the insertion hole, the audible and visual alarm immediately emits an audible and visual alarm and sends a wireless alarm signal to the remote monitoring center.

[0014] In preferred embodiments, the device is used in the following ways: Scenario 1: After splicing multiple sets of bases end to end with T-shaped slots and T-shaped rails, glue and fix them at the designated work location; flip the column inward and store it inside the base; place the baffle on the top end face of the base and fix it magnetically with magnetic plates, with the warning slogan engraved on the front of the baffle facing upward; fix all kinds of control cables in the wire strip seat to complete the basic protection deployment of the device; Scenario 2: After splicing multiple sets of bases end to end with T-shaped slots and T-shaped rails, glue and fix them at the designated work location; rotate the column outwards by ° to make the column perpendicular to the base; insert the pin into the pin hole to lock and fix the rotation angle of the column; attach both ends of the baffle to the limiting groove at the end of the column to form a closed enclosure, with the warning slogan engraved on the back of the baffle facing outwards; fix various control cables in the wire strip seat, and insert the audible and visual alarm into the limiting groove through the card plate, insert the safety pin to complete the fixation, and realize the enhanced protection deployment; Scenario 3: After splicing multiple sets of bases end to end with T-shaped slots and T-shaped rails, they are glued and fixed to the work location with water accumulation; some of the water is quickly discharged through the water-permeable holes on the bottom side of the base; various control cables are fixed in the wire strip seat and isolated from the water accumulation; by rotating the water level alarm to adjust its detection sensitivity, when the water accumulation in the base exceeds the set threshold and comes into contact with the water level probe, the water level alarm immediately sends a wireless alarm signal to the remote control center, completing the water accumulation early warning and protection.

[0015] A smart protection device for large power plant equipment and its usage method, the beneficial effects of which include, but are not limited to, the following: 1. The base has T-shaped slots and rails on both sides, and multiple bases can be quickly plugged in and spliced ​​together. The protection range and shape can be flexibly adjusted without customization to adapt to changes in equipment layout. This avoids the scrapping of protective devices due to equipment adjustments, significantly reduces costs and installation cycle, and solves the problems of "poor adaptability and low reuse rate" of existing devices. 2. The base and the bottom of the upright plate have water-permeable holes to quickly drain water from areas prone to water accumulation; the water level detection system on the partition has an adjustable probe height, and when the water level exceeds the threshold, it sends an alarm signal to the remote end, which can provide early warning compared to manual inspection, avoid equipment short circuits, insulation breakdown and other faults caused by water accumulation, and reduce economic losses and safety risks; 3. The column can be switched between "storage to base" and "vertical base" via a pivot and pin: during operation, the column is stored and the baffle is magnetically fixed to form basic warning protection, which does not take up space and does not affect heat dissipation inspection; during maintenance, the column is flipped and locked, and the baffle is snapped into a closed enclosure, which does not require additional temporary structure and improves operation and maintenance efficiency. 4. The sound and light alarm is linked with the limit slot and safety pin. When the protective structure is accidentally damaged, it will immediately give an on-site warning and send a signal to the remote monitoring center, breaking the passive mode of "physical isolation + manual inspection", shortening the fault response time and avoiding the risk of external collision and unauthorized contact. 5. Provides three protection modes: basic, enhanced, and water accumulation warning. The appropriate mode can be selected flexibly according to the equipment status and site environment, realizing "one device covering multiple working conditions". This eliminates the need to configure multiple sets of equipment, reduces overall investment, and improves versatility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an anatomical diagram of the overall structure baffle of the present invention; Figure 3 This is a schematic diagram of the base connection structure of the present invention; Figure 4 This is a schematic diagram of the column flipping structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the base of the present invention; Figure 6 This is a diagram of the fence in the flipped-over state of the pillars of the present invention; Figure 7 This is a schematic diagram of the sound and light alarm device and the column locking device of the present invention.

[0017] In the diagram: 1. Base; 2. Baffle; 3. Column; 4. Stand plate; 5. Magnetic suction plate; 6. T-shaped slot; 7. T-shaped rail; 8. Shaft; 9. Locking disc; 10. Threaded connector; 11. Water hole; 12. Wire guide seat; 13. Water level alarm; 14. Partition plate; 15. External thread; 16. Water level probe; 17. Limiting groove; 18. Insertion hole; 19. Safety pin; 20. Audible and visual alarm; 21. Clamping plate; 22. Pin hole; 23. Pin rod. Detailed Implementation

[0018] like Figure 1 As shown, an intelligent protective device for large power plant equipment includes a base 1 and a column 3. The base 1 is made of 304 stainless steel, which has excellent corrosion resistance and rust resistance, making it suitable for the humid and dusty working environment of power plants. The side cross-section is designed as a trapezoidal structure, which improves overall stability by being narrower at the top and wider at the bottom, preventing tipping due to personnel collisions or equipment vibrations. Vertically welded and fixed upright plates 4 are placed inside the base 1. The upright plates 4 are made of the same material as the base 1, and their number is set according to the length and load-bearing requirements of the column 3. Their function is to provide a turning support point for the column 3 and to divide the internal space of the base 1 to optimize the functional layout. A partition plate 14 is vertically welded between the side of the upright plate 4 and the inner side of the base 1. 14 uses an insulating resin board, which avoids conductive contact with internal cables and provides waterproof isolation to prevent water from seeping across areas; between the uprights 4, there are movable, flip-up columns 3. The columns 3 are made of lightweight aluminum alloy, which reduces the overall weight while ensuring structural strength, making them easy to install and flip; the upper surface of the base 1 can be detachably fitted with a baffle 2. The baffle 2 is made of high-strength acrylic sheet, which is both light-transmitting and impact-resistant, and the surface is printed with warning signs to serve as a safety reminder; the water level detection system on the partition 14 includes a water level alarm 13, whose housing protection level is not lower than IP67, which can effectively resist the intrusion of external moisture and ensure stable operation in humid environments.

[0019] Preferred solutions include Figure 3 and Figure 7 As shown, the end of the column 3 has a corresponding connection hole with the upright plate 4. The rotating shaft 8 passes through the connection hole, allowing the column 3 to rotate around the axis of the rotating shaft. The rotating shaft 8 is made of high-strength steel. By precisely controlling the gap between the rotating shaft and the connection hole, the smoothness of the column's rotation is ensured, while avoiding the column from shaking due to excessive gap. The two ends of the rotating shaft 8 have integrally formed threaded connectors 10, which are used in conjunction with galvanized locking discs 9. The galvanized layer can prevent the threaded connection from rusting and getting stuck. Tightening the locking discs 9 can lock the position of the rotating shaft, preventing the rotating shaft from loosening after long-term use. The side of the column 3 is provided with a pin hole 22 corresponding to the rotating shaft 8. The pin 23 passes through the pin hole and can lock the rotation angle of the column. The end of the pin is provided with anti-slip texture, which not only facilitates the insertion and removal operation of maintenance personnel, but also prevents slippage and falling off during the insertion and removal process, ensuring the reliability of operation when switching the protection state.

[0020] Preferred solutions include Figure 4As shown, a T-shaped slot 6 is opened on one side of the base 1, and a corresponding T-shaped rail 7 is fixed on the other side. The two are connected end to end by a concave-convex fit. The inner wall of the slot is coated with a polytetrafluoroethylene lubricating layer. This coating has a low coefficient of friction, which can reduce the resistance during splicing and facilitate quick assembly or disassembly. When splicing multiple bases, the joints of adjacent bases are filled with butyl rubber sealant. The high sealing performance of butyl rubber prevents water from seeping into the gaps, avoiding damage to the internal cables or components of the base due to water immersion, and improving the stability of the overall splicing structure.

[0021] Preferred solutions include Figure 2 As shown, neodymium iron boron magnetic absorbing sheets 5 are fixed at equal intervals along the length of the upper surface of the upright plate 4. The neodymium iron boron material has strong magnetic properties, which can ensure the reliable adsorption between the baffle 2 and the upright plate 4. A thin cold-rolled steel plate is welded to the bottom of the baffle 2 corresponding to the position of the magnetic absorbing sheet. The metal material and the magnetic absorbing sheet are used to achieve detachable fixation, which not only prevents unauthorized personnel from easily disassembling the baffle, but also makes it convenient for maintenance personnel to quickly remove the baffle during maintenance. The protection status can be switched without the aid of tools, which improves the efficiency of operation.

[0022] Preferred solutions include Figure 5 As shown, water-permeable holes 11 are opened on the bottom side end face of the base 1 and the bottom of the upright plate 4, forming a through drainage channel, which can quickly drain the rainwater or condensate water accumulated in the base and prevent water from stagnating in the base; stainless steel filter screens are attached to the inside of the water-permeable holes, and the filtering effect of the filter screens is used to block impurities from entering the holes, preventing the water-permeable holes from being blocked due to the accumulation of dust and debris, ensuring that the drainage function is effective for a long time, and reducing the risk of water corrosion to internal cables and components from the source.

[0023] Preferred solutions include Figure 5 As shown, the water level detection system includes a water level alarm 13, which is vertically mounted on the partition 14 and connected by an external thread. The threaded connection structure allows for vertical adjustment of the water level alarm, thereby changing the distance between the bottom water level probe 16 and the bottom of the base. The water level probe is made of stainless steel to prevent corrosion, and its detection accuracy meets the requirements for flood warning. By adjusting the probe height, the detection threshold can be set according to the flood characteristics of different areas, avoiding false alarms or missed alarms due to a uniform threshold, and improving the pertinence and reliability of flood warning.

[0024] Preferred solutions include Figure 5As shown, the upper end of the partition 14 is fixed to the conductor seat 12 by bolts. The conductor seat is made of flame-retardant plastic material, which meets the fire safety requirements of power plants and can prevent the spread of fire when a cable short circuit causes a fire. The conductor seat has multiple slots that are adapted to the diameter of the cable. The inner wall of the slots is pasted with anti-slip rubber pads. The rubber pads can fix the position of the cable and prevent the cable from shifting or abrading due to equipment vibration. They can also realize the neat storage of the cable, which is convenient for maintenance personnel to quickly identify and repair the cable. At the same time, the protective structure of the partition and the base isolates the cable from external water and impurities, and slows down the aging rate of the cable insulation layer.

[0025] Preferred solutions include Figure 6 As shown, a limiting groove 17 is opened at the end of column 3 along the length direction. The inner wall of the limiting groove is polished smooth, which can reduce friction and wear when the baffle is engaged and extend the service life of the component. When the column is flipped upward to be perpendicular to the base, the two ends of the baffle are tightly engaged with the limiting groove to form a closed enclosure structure. This structure can effectively prevent the risk of tools falling or personnel accidentally entering, and is suitable for the high protection requirements during equipment maintenance. A sound and light alarm 20 is also engaged in the limiting groove. The two adopt an interference fit, and the interference fit is used to make the alarm stable and fixed, avoiding the alarm from loosening and shifting due to vibration, and ensuring that the alarm function is stably triggered.

[0026] Preferred solutions include Figure 7 As shown, the bottom of the audible and visual alarm 20 is vertically fixed with a retaining plate 21. The retaining plate is inserted into the limiting slot, and the insertion depth ensures the stability of the alarm installation. The limiting slot and the retaining plate have corresponding insertion holes 18. The safety pin 19 passes through the insertion hole and is locked by the central elastic spring. The elastic spring can realize the quick insertion and removal of the safety pin, while ensuring that it will not fall off in the locked state. When the protective structure is damaged and the safety pin falls out of the insertion hole, the micro switch inside the alarm is triggered immediately. On the one hand, it emits a high-decibel alarm sound and flashing warning light to realize the on-site audible and visual reminder. On the other hand, it sends an alarm signal to the remote monitoring center through the built-in wireless module, breaking the passive mode of traditional "manual inspection" and ensuring that maintenance personnel receive abnormal information in a timely manner and deal with it quickly, shortening the fault response time.

[0027] The device can be used in the following ways: Example 1: When large power plant equipment (such as steam turbine generators) is in normal operation and only basic warning protection is required, the operating steps are as follows: S1.1 According to the protective boundary around the equipment, multiple sets of bases 1 are spliced ​​end to end with T-shaped slots 6 and T-shaped rails 7 to form a protective frame around the equipment. After splicing, the bases are fixed to the designated work location by using industrial strong adhesive on the bottom to prevent them from shifting. S1.2 Flip the column 3 inward so that the column 3 is completely stored in the space between the inner upright plate 4 of the base 1, so as to prevent the column from extending out and occupying the space around the equipment, and not to affect the daily inspection channel and equipment heat dissipation. S1.3 Place the baffle 2 on the top end face of the base 1 and fix it to the bottom metal layer of the baffle by magnetic attraction piece 5 on the upright plate 4. At this time, the warning slogan engraved on the front of the baffle 2 is facing upwards, reminding unauthorized personnel to stay away. S1.4. Various control cables connected to the equipment are categorized and embedded into the slots of the conductor strip 12 to achieve neat cable storage. At the same time, the isolation between the conductor strip and the partition prevents the cables from contacting the external environment, thus completing the basic protection deployment.

[0028] Example 2: When equipment enters the maintenance phase, and it is necessary to prevent personnel from accidentally entering and to prevent tools from falling, enhanced protective measures are implemented. The operating steps are as follows: S2.1. In the same situation as 1, complete the splicing and fixing of multiple sets of base 1 to ensure that the protective frame covers the boundary of the maintenance area; S2.2 Rotate the column 3 inside the base 1 outward by 90° so that the column 3 is perpendicular to the base 1. At this time, the column 3 forms a retaining support structure. Align the column 3 with the pin hole 22 on the rotating shaft 8, insert the pin 23 into the pin hole 22, and lock the rotation angle of the column through mechanical limit to prevent the column from tipping over during maintenance. S2.3. Insert the two ends of the baffle 2 into the limiting grooves 17 at the ends of the two side columns 3. The baffle 2 and the column 3 cooperate to form a closed enclosure. At this time, the warning slogan engraved on the back of the baffle 2 is "Equipment under maintenance, do not enter" to enhance the warning effect. S2.4. After completing the cable fixing in the conductor seat 12 as in case 1, insert the locking plate 21 of the audible and visual alarm 20 into the limiting groove 17 of the column 3, align the socket 18 and insert the safety pin 19 to complete the alarm fixing. If someone forcibly disassembles the baffle or alarm during the maintenance process, the safety pin 19 will trigger the audible and visual alarm and remote signal transmission after it comes off, ensuring maintenance safety.

[0029] Example 3: When the area where the equipment is located (such as under a cooling tower or underground cable layer) is prone to water accumulation, the water accumulation warning function needs to be activated. The operation steps are as follows: S3.1. In the same situation as 1, complete the splicing and fixing of multiple sets of base 1 to ensure that base 1 covers the equipment perimeter in areas prone to water accumulation; S3.2 The drainage holes 11 at the bottom of the base 1 and the bottom of the upright plate 4 are kept unobstructed. When water accumulates in the area, some of the water is quickly discharged through the drainage holes 11, reducing water residue in the base. S3.3 Fix all kinds of control cables in the wire strip seat 12. Use the height difference between the wire strip seat and the bottom of the base to isolate the cables from possible water accumulation and avoid water damage. S3.4. Based on the water accumulation risk level of the area, the distance between the water level probe 16 and the bottom of the base 1 is adjusted by rotating the water level alarm 13. For example, it is adjusted to 5-10mm in areas prone to water accumulation and 15-20mm in low-risk areas. The water accumulation detection threshold is set. When the water accumulation in the base 1 exceeds the threshold and touches the water level probe 16, the water level alarm 13 immediately triggers the wireless transmission module to send an alarm signal to the remote control center, reminding maintenance personnel to deal with the water accumulation in time and complete the water accumulation early warning and protection.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention; no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A large power plant equipment intelligent protection device, comprising a base (1) and a stand (3), characterized in that: The side section of the base (1) is in trapezoidal structure, vertical fixed setting is provided with the vertical plate (4) in the base (1), the vertical plate (4) is vertically connected with the partition (14) between the side of vertical plate (4) and the inner side of base (1), the vertical column (3) that can be turned up and down is movably placed between the vertical plate (4), the baffle (2) is detachably placed at the upper end surface of base (1), the water level detection system is further provided on the partition (14), the water level detection system includes water level alarm (13).

2. The intelligent guard device for large power plant equipment according to claim 1, characterized in that: The end of vertical column (3) and vertical plate (4) are correspondingly provided with connecting hole, the rotating shaft (8) penetrates the connecting hole and makes the vertical column (3) can rotate around the axis of rotating shaft (8), the two ends of rotating shaft (8) are integrally formed with threaded connector (10), the locking disc (9) is threadedly connected with threaded connector (10), so as to lock and fix the position of rotating shaft (8); The side of vertical column (3) and rotating shaft (8) are correspondingly provided with pin hole (22), after the pin rod (23) penetrates the pin hole (22), the rotation angle of vertical column (3) can be locked and fixed.

3. The intelligent guard device for large power plant equipment according to claim 1, characterized in that: The side of base (1) is provided with T type clamping groove (6), the other side of base (1) is correspondingly provided with T type clamping rail (7), the base (1) is inserted into the T type clamping rail (7) of adjacent base (1) through T type clamping groove (6), so as to realize the splicing and fixing of multiple base (1).

4. The intelligent guard device for large power plant equipment according to claim 1, characterized in that: The upper end surface of vertical plate (4) is equidistantly fixed along the length direction and provided with magnetic attraction piece (5), the vertical plate (4) is connected with baffle (2) through magnetic attraction piece (5), so as to realize the detachable fixing of baffle (2).

5. The intelligent guard device for large power plant equipment of claim 1, wherein: The side end surface of base (1) is equidistantly provided with water permeable hole (11) along the height direction, the bottom end surface of vertical plate (4) is correspondingly provided with water permeable hole (11) and used for quickly draining the accumulated water in base (1).

6. The power plant equipment intelligent guard of claim 1, wherein: The water level detection system includes water level alarm (13), the water level alarm (13) is vertically arranged with the partition (14), the outer wall of water level alarm (13) is processed with external thread (15), the water level alarm (13) is threadedly connected with the partition (14) through external thread (15); the water level probe (16) is fixedly arranged at the bottom of water level alarm (13), the distance between water level probe (16) and the bottom end surface of base (1) can be adjusted by rotating water level alarm (13), so as to adjust the accumulated water detection sensitivity.

7. The intelligent guard device for large power plant equipment of claim 1, wherein: The upper end surface of partition (14) is provided with wire arrangement seat (12), various signal cables are fixed in wire arrangement seat (12) and realize the regular storage and waterproof isolation of cables.

8. The intelligent guard device for large power plant equipment of claim 1, wherein: The end of vertical column (3) is provided with limiting groove (17) along the length direction, when the vertical column (3) is vertically turned up to be perpendicular to base (1), the two ends of baffle (2) can be clamped and matched with limiting groove (17) and form closed enclosure; The sound and light alarm (20) is clamped in limiting groove (17), so as to realize the fixed installation of sound and light alarm (20).

9. The intelligent guard device for large power plant equipment of claim 1, wherein: The bottom of the sound and light alarm (20) is vertically fixed with a clamping plate (21), the clamping plate (21) is inserted and matched with the limiting groove (17), the limiting groove (17) and the clamping plate (21) are provided with a jack (18) correspondingly, and the safety pin (19) is inserted through the jack (18) to lock and fix the position of the sound and light alarm (20); when the safety pin (19) is separated from the jack (18), the sound and light alarm (20) immediately sends out sound and light alarm and sends a wireless alarm signal to the remote monitoring center.

10. The intelligent guard device for power plant equipment according to any one of claims 1 to 9, characterized in that: The use method of the device includes the following cases: Case 1: After a plurality of bases (1) are spliced by T-shaped clamping grooves (6) and T-shaped clamping rails (7) from head to tail, they are pasted and fixed at the designated work site; the stand (3) is turned inward and stored in the base (1); the baffle (2) is laid on the top end face of the base (1) and is magnetically fixed by the magnetic sheet (5), at this time, the warning slogans engraved on the front of the baffle (2) are set upward; various control cables are fixed in the wire guide seat (12), and the basic protection deployment of the device is completed; Case 2: After a plurality of bases (1) are spliced by T-shaped clamping grooves (6) and T-shaped clamping rails (7) from head to tail, they are pasted and fixed at the designated work site; the stand (3) is turned outward by 90°, so that the stand (3) is perpendicular to the base (1); the pin rod (23) is inserted into the pin hole (22) to lock and fix the rotation angle of the stand (3); the two ends of the baffle (2) are clamped into the limiting grooves (17) at the ends of the stand (3) to form a closed fence, at this time, the warning slogans engraved on the back of the baffle (2) are set outward; various control cables are fixed in the wire guide seat (12), and the sound and light alarm (20) is inserted and matched with the limiting groove (17) through the clamping plate (21) and the safety pin (19) to complete the fixation, so as to realize the enhanced protection deployment; Case 3: After a plurality of bases (1) are spliced by T-shaped clamping grooves (6) and T-shaped clamping rails (7) from head to tail, they are pasted and fixed at the work site with accumulated water; part of the accumulated water is quickly discharged through the water permeable hole (11) on the side of the bottom of the base (1); various control cables are fixed in the wire guide seat (12) and are isolated from the accumulated water; the detection sensitivity of the rotating water level alarm (13) is adjusted, when the accumulated water in the base (1) exceeds the set threshold value and contacts the water level probe (16), the water level alarm (13) immediately sends a wireless alarm signal to the remote control center to complete the accumulated water early warning protection.