Cable trench heat dissipation device and electric well equipment

Abstract

The invention relates to a cable trench heat dissipation device and electric well equipment. The cable trench heat dissipation device comprises a supporting seat, an unpowered air cap, a fan and an electricity taking piece. The supporting seat is used for being installed on a cable trench, and a ventilation hole is formed in the supporting seat and used for being communicated with the cable trench. The unpowered hood is installed on the supporting seat and located at the end, away from the cable trench, of the ventilation hole. The fan is mounted in the ventilation hole, and the fan is used for rotating to generate cooling air for heat dissipation; the power taking part is used for being located in the cable trench and arranged on a cable in the cable trench in a sleeving mode so as to generate induction current, and the power taking part is electrically connected with the draught fan so as to be used for supplying power to the draught fan. According to the cable trench heat dissipation device, the power taking piece arranged on the cable in the sleeving mode is arranged in the cable trench, so that when alternating current passes through the cable, induced current can be generated on the power taking piece, power can be supplied to the draught fan, the situation that a storage battery is arranged and needs to be frequently replaced is avoided, and the cost of the cable trench heat dissipation device is saved.

Description

Technical Field

[0001] The present application relates to the technical field of power station operation and maintenance, and in particular to a cable trench heat dissipation device and an electric well equipment. Background Art

[0002] Currently, the number of ultra-high voltage (UHV) substations is increasing rapidly. Cables laid within these substations are long and spread over a wide area, resulting in extensive cable trenches. Existing technologies often employ heat dissipation devices above the cable trenches to improve air circulation and heat dissipation within the trenches. These devices consist of unpowered hoods and fans. The fans and powered hoods work together to dissipate heat within the trenches. However, these devices require batteries and other components to power the fans, and the frequent replacement of batteries increases the cost of the heat dissipation devices. Summary of the Invention

[0003] Based on this, it is necessary to provide a cable trench heat dissipation device for the existing heat dissipation device including an unpowered hood and a fan, and to dissipate heat in the cable trench in a timely manner through the cooperation of the fan and the powered hood. However, it is necessary to set up components such as batteries to power the fan, and the batteries need to be replaced frequently, which increases the cost of the heat dissipation device.

[0004] A cable trench heat dissipation device, comprising:

[0005] A support base, the support base is used to be installed on the cable trench, and the support base is provided with a ventilation hole, and the ventilation hole is used to be connected to the cable trench;

[0006] A non-powered hood is mounted on the support base and is located at an end of the ventilation hole away from the cable trench;

[0007] a fan, the fan being installed in the ventilation hole and being used to rotate to generate cooling air for heat dissipation; and

[0008] The power taking component is located in the cable trench and is used to be sleeved on the cable in the cable trench to generate an induced current. The power taking component is electrically connected to the wind turbine to supply power to the wind turbine.

[0009] In one embodiment, the power extraction component includes a fixed ring and an induction coil. The fixed ring has a mounting hole for being sleeved on the cable. The induction coil is passed through the mounting hole and spirally wrapped around a partial ring segment of the fixed ring in the circumferential direction of the fixed ring to induce current under the action of the magnetic field.

[0010] In one embodiment, the power extraction component further includes two elastic clips, both of which are used to be sleeved on the cable and are respectively arranged on both sides of the fixing ring to fix the position of the fixing ring on the cable.

[0011] In one embodiment, the cable trench heat dissipation device further includes a power cord expansion joint, which is provided on the power cord between the power pickup and the fan to achieve elastic expansion and contraction of the power cord.

[0012] In one embodiment, the cable trench heat dissipation device also includes a first temperature detection component and a controller. The controller and the first temperature detection component are used to be arranged in the cable trench, and the controller is electrically connected to the first temperature detection component, the fan and the power supply component. The power supply component is used to supply power to the controller. The first temperature detection component is used to detect the temperature in the cable trench. The controller controls the start and stop of the fan by setting a threshold and receiving temperature information collected by the first temperature detection component.

[0013] In one embodiment, the first temperature detecting member is arranged on one side of the cable in the middle area of the cable trench.

[0014] In one embodiment, the cable trench heat dissipation device also includes a second temperature detection component, which is electrically connected to the controller and is arranged on the outside of the support base. The second temperature detection component is used to detect the current ambient temperature and transmit the current ambient temperature information to the controller. The controller obtains the set threshold value under the current environment based on the current ambient temperature information and the limit temperature of the cable while ensuring the transmission capacity.

[0015] In one embodiment, the support base includes an interconnected wind tube and a cover plate, the ventilation hole is arranged on the wind tube, and the unpowered wind hood is connected to the wind tube, the cover plate is sleeved on the wind tube and is located at one end away from the unpowered wind hood, and the cover plate is used to abut against the manhole cover of the cable trench so as to cover the manhole of the cable trench.

[0016] In one embodiment, the cable trench heat dissipation device further includes a water stop strip, which is arranged around the circumference of the wind tube between the cover plate and the manhole cover to provide waterproofing.

[0017] The present application also provides an electric well equipment that can solve at least one of the above technical problems.

[0018] An electric well equipment includes the above-mentioned cable trench heat dissipation device, and also includes a cable trench and a support frame. The support frame is arranged in the cable trench and connected to the inner wall of the cable trench. The support frame is used to support the cable.

[0019] Beneficial effects:

[0020] The cable trench heat dissipation device provided in the embodiment of the present application includes a support base, a non-powered hood, a fan and a power extraction member; the support base is used to be installed on the cable trench, and the support base is provided with a ventilation hole, and the ventilation hole is used to be connected to the cable trench; the non-powered hood is installed on the support base and is located at the end of the ventilation hole away from the cable trench; the fan is installed in the ventilation hole, and the fan is used to rotate to generate cooling wind for heat dissipation; the power extraction member is used to be located in the cable trench and to be sleeved on the cable in the cable trench to generate an induced current, and the power extraction member is electrically connected to the fan to supply power to the fan. In the present application, by providing a power extraction member sleeved on the cable in the cable trench, when AC power passes through the cable, an induced current can be generated on the power extraction member, thereby supplying power to the fan, thereby avoiding the need to install a battery and the need to frequently replace the battery, saving the cost of the cable trench heat dissipation device.

[0021] The present application also provides an electric well equipment, including the above-mentioned cable trench heat dissipation device, and also including a cable trench and a support frame. The support frame is arranged in the cable trench and connected to the inner wall of the cable trench. The support frame is used to support the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a cable trench heat dissipation device provided in one embodiment of the present application.

[0023] Figure 2 A schematic diagram of the cable trench heat dissipation device and the cable trench provided in one embodiment of the present application.

[0024] Figure 3 This is a schematic diagram of the cooperation between the power taking component and the cable in the cable trench heat dissipation device provided in one embodiment of the present application.

[0025] Figure 4 A schematic diagram of a support frame in an electric well equipment provided in one embodiment of the present application.

[0026] Figure Number:

[0027] 100-support base; 110-ventilation hole; 120-non-powered hood; 130-fan; 140-air duct; 150-cover; 151-step portion; 152-step wall; 153-plate body; 154-protrusion; 155-conductive interface; 200-power supply; 210-fixing ring; 211-mounting hole; 220-elastic clip; 310-first temperature detection component; 320-controller; 330-power cord expansion joint; 340-water stop strip; 350-host; 360-support frame; 361-support body; 362-baffle; 363-fixing plate; 364-reinforcement plate; 400-cable trench; 410-cable; 420-manhole cover; 430-manhole head. DETAILED DESCRIPTION

[0028] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0034] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of a cable trench heat dissipation device provided in one embodiment of the present application. Figure 2Schematic diagram of the cable trench heat dissipation device and the cable trench provided in one embodiment of the present application. The cable trench heat dissipation device provided in one embodiment of the present application includes a support base 100, a non-powered hood 120, a fan 130, and a power extraction component 200; the support base 100 is used to be installed on the cable trench 400, and the support base 100 is provided with a ventilation hole 110, and the ventilation hole 110 is used to conduct electricity with the cable trench 400; the non-powered hood 120 is installed on the support base 100 and is located at the end of the ventilation hole 110 away from the cable trench 400; the fan 130 is installed in the ventilation hole 110 and is used to rotate to generate cooling air for heat dissipation; the power extraction component 200 is used to be located in the cable trench 400 and is used to be sleeved on the cable 410 in the cable trench 400 to generate an induced current, and the power extraction component 200 is electrically connected to the fan 130 to supply power to the fan 130.

[0035] Specifically, in the present application, a power extraction component 200 is set in the cable trench 400 and is sleeved on the cable 410. When AC power passes through the cable 410, an induced current can be generated on the power extraction component 200, thereby supplying power to the fan 130, thereby avoiding the need to install batteries and the need to frequently replace batteries, thereby saving the cost of the cable trench heat dissipation device.

[0036] See Figure 1 and Figure 2 In one embodiment, the power extraction component 200 includes a fixing ring 210 and an induction coil. The fixing ring 210 has a mounting hole 211 for being mounted on the cable 410. The induction coil is passed through the mounting hole 211 and spirally wrapped around a portion of the fixing ring 210 in the circumferential direction of the fixing ring 210 to induce current under the action of the magnetic field.

[0037] Specifically, in the present application, the fixing ring 210 is fixed to the cable 410. When alternating current passes through the cable 410, a magnetic field will be excited in the space around the cable 410, and the magnetic lines of force will pass through the fixing ring 210, generating an induced electromotive force in the fixing ring 210. Since the induction coil is spirally wrapped around the fixing ring 210 in the circumferential direction, the magnetic lines of force generated by the fixing ring 210 pass through the induction coil, so that the induction coil induces current under the action of the magnetic field to power the fan 130. Therefore, in the present application, there is no need to set up additional power supply components such as batteries. Only through the cooperation between the fixing ring 210, the induction coil and the cable 410, a stable power supply to the fan 130 is achieved, saving the cost of the cable trench heat dissipation device.

[0038] Among them, compared with the method of only passing alternating current through the cable 410 through the fixed ring 210 to generate an induced current, in the present application, the induction coil is arranged to spirally surround the circumferential section of the fixed ring 210 so that sufficient magnetic lines of force pass through the induction coil, and by controlling the number of turns of the induction coil spirally wrapped around the fixed ring 210, the magnetic induction intensity of the induction coil can be greatly increased, thereby increasing the magnetic flux of the induction coil, improving the induced electromotive force of the induction coil, and thus being able to provide stable power supply to the fan 130.

[0039] See Figure 1 、 Figure 2 and Figure 3 , Figure 3 A schematic diagram illustrating the coordination of the power extraction member and the cable in a cable trench heat dissipation device according to one embodiment of the present application. In one embodiment, the power extraction member 200 further includes two elastic clips 220 , each of which is configured to be sleeved around the cable 410 and positioned on either side of the fixing ring 210 to secure the fixing ring 210 in position on the cable 410 .

[0040] Specifically, the elastic clip 220 has an opening and is capable of elastic deformation, which increases the opening of the elastic clip 220, allowing it to be sleeved over the cable 410 and elastically abut against the cable 410, thereby fixing the relative positions of the elastic clip 220 and the cable 410. By providing elastic clips 220 on both sides of the fixing ring 210, the two elastic clips 220 can clamp the fixing ring 210, thereby limiting the sliding of the fixing ring 210 relative to the cable 410, thereby avoiding pulling on the power supply line connecting the power supply unit 200 and the fan 130, and improving the reliability of the cable trench heat dissipation device.

[0041] See Figure 1 and Figure 2 In one embodiment, the cable trench heat dissipation device further includes a power cord expansion joint 330, which is disposed on the power cord between the power pickup 200 and the fan 130 to achieve elastic expansion and contraction of the power cord.

[0042] Specifically, since the power extraction member 200 is disposed in the cable trench 400 and is sleeved on the cable 410, when the support base 100 is disassembled to inspect the components in the cable trench 400, the power cord between the power extraction member 200 and the fan 130 will be pulled, and the fixing ring 210 will pull the cable 410, thereby causing varying degrees of damage to the power cord, the power extraction member 200, and the cable 410. The present application provides a power cord expansion joint 330 on the power cord between the power extraction member 200 and the fan 130, thereby enabling elastic expansion and contraction of the power cord. Therefore, when the support base 100 is disassembled, the power cord will not be pulled, and thus the power cord, the power extraction member 200, and the cable 410 will not be damaged, thereby improving the reliability of the cable trench heat dissipation device.

[0043] See Figure 1 and Figure 2 In one embodiment, the cable trench heat dissipation device also includes a first temperature detection component 310 and a controller 320. The controller 320 and the first temperature detection component 310 are used to be arranged in the cable trench 400, and the controller 320 is electrically connected to the first temperature detection component 310, the fan 130 and the power supply component 200. The power supply component 200 is used to supply power to the controller 320. The first temperature detection component 310 is used to detect the temperature in the cable trench 400. The controller 320 controls the start and stop of the fan 130 by receiving the temperature information collected by the first temperature detection component 310.

[0044] Specifically, when the first temperature detection component 310 detects that the temperature of the cable trench 400 is greater than a set threshold, the controller 320 controls the fan 130 to turn on, thereby causing the fan 130 to rotate, accelerating the air flow in the ventilation hole 110, and cooperating with the unpowered wind cap 120 to form a stronger chimney effect, promptly discharging the hot air in the cable trench 400 to reduce the temperature in the cable trench 400, increase the transmission capacity of the cable 410, and avoid damage to it. Among them, when the first temperature detection component 310 detects that the temperature of the cable trench 400 is less than a set threshold, the controller 320 controls the fan 130 to turn off, thereby only dissipating heat naturally through the unpowered wind cap 120 according to the temperature difference between the inside and outside of the cable trench 400 and the ambient wind speed. Preferably, the first temperature detection component 310 is a temperature sensor.

[0045] Furthermore, the cable trench heat dissipation device further includes a host 350, which is disposed on the inner wall of the cable trench 400, and a controller 320 disposed on the host 350. The power extraction component 200 is electrically connected to the fan 130 through the controller 320, so that when the controller 320 controls the fan 130 to start, the controller 320 controls the power extraction component 200 to supply power to the fan 130.

[0046] See Figure 1 and Figure 2In one embodiment, the first temperature detecting member 310 is arranged on one side of the cable 410 located in the middle area of the cable trench 400 .

[0047] Specifically, in the cable trench 400, three layers of cables 410 are generally arranged longitudinally, and the temperature near the middle layer of cables 410 is the highest. Therefore, by setting the first temperature detection component 310 on one side of the cable 410 located in the middle area of the cable trench 400, the temperature in the cable trench 400 can be detected in time, thereby timely controlling the start and stop of the fan 130, thereby improving the reliability of the cable trench heat dissipation device.

[0048] See Figure 1 and Figure 2 In one embodiment, the cable trench heat dissipation device further includes a second temperature detection component, which is electrically connected to the controller 320 and is disposed on the outside of the support base 100. The second temperature detection component is used to detect the current ambient temperature and transmit the current ambient temperature information to the controller 320. The controller 320 obtains the set threshold value under the current environment based on the current ambient temperature information and the limit temperature of the cable 410 while ensuring the transmission capacity.

[0049] Specifically, the set threshold value is related to the ambient temperature associated with the cable construction site. Under different ambient temperatures, when the cable 410 reaches the limit temperature for guaranteed transmission capacity, the temperature within the cable trench 400 will vary. Therefore, the controller 320 obtains the set threshold value for the current environment based on the current ambient temperature information and the limit temperature of the cable 410 for guaranteed transmission capacity. This allows the fan 130 to be promptly controlled to open, accelerating air flow within the vents 110. This, in conjunction with the unpowered hood 120, creates a stronger chimney effect, promptly discharging hot air from the cable trench 400, thereby reducing the temperature within the trench 400 and improving the transmission capacity reliability of the cable 410. The controller calculates the internal temperature of the cable trench 400 when the temperature of the cable 410 reaches the limit temperature under various ambient temperatures based on a cable thermal analysis program, and determines this temperature as the set threshold value.

[0050] It should be noted that when the cable temperature reaches 90°C, it reaches the transmission capacity limit of the cable 410. If it is operated for a long time beyond the limit, it will suffer irreversible damage. This embodiment takes the cable 410 with a temperature limit of 90°C under guaranteed transmission capacity as an example for explanation. Under different ambient temperatures, the threshold values are set as follows:

[0051]

[0052] It should be noted that, in other embodiments, under different ambient temperatures, the threshold value may be set to other values.

[0053] See Figure 1 and Figure 2 In one embodiment, the support base 100 includes an air cylinder 140 and a cover plate 150 that are connected to each other, the ventilation hole 110 is set on the air cylinder 140, and the unpowered wind hood 120 is connected to the air cylinder 140, the cover plate 150 is sleeved on the air cylinder 140, and is located at one end away from the unpowered wind hood 120, and the cover plate 150 is used to abut against the manhole cover 420 of the cable trench 400 to cover the manhole 430 of the cable trench 400.

[0054] Specifically, the size of the cover plate 150 is adapted to the size of the manhole cover 420, and the size of the air duct 140 is not limited by the size of the manhole cover 420. It only needs to be adapted to the non-powered wind hood 120, so that the air duct 140 can be miniaturized, thereby reducing the weight of the support base 100 and improving the reliability of the cable trench heat dissipation device.

[0055] See Figure 1 and Figure 2 In one embodiment, the cable trench heat dissipation device further includes a water stop strip 340, which is arranged around the circumference of the wind tube 140 between the cover plate 150 and the manhole cover 420 for waterproofing, thereby improving the waterproof performance between the cover plate 150 and the manhole cover 420 and preventing surface water such as rainwater from seeping into the cable trench 400.

[0056] Furthermore, the water stop strip 340 swells when exposed to water, thereby sealing the gap between the cover plate 150 and the manhole cover 420 and improving the waterproof performance.

[0057] See Figure 1 and Figure 2 In one embodiment, a step portion 151 is provided at the edge of the cover plate 150. The step portion 151 includes at least three sequentially connected step walls 152. Each step wall 152 is configured to abut against the cover plate 150, thereby enhancing the seal between the cover plate 150 and the manhole cover 420, improving waterproof performance, and thus enhancing the reliability of the cable trench heat dissipation device. The step portion 151 is disposed around the entire circumference of the air duct 140.

[0058] Furthermore, the cover plate 150 includes a plate body 153 and a protrusion 154. The protrusion 154 is disposed on the side of the plate body 153 facing away from the unpowered hood 120, and the outer contour of the protrusion 154 is smaller than the outer contour of the plate body 153, so that the sidewalls of the plate body 153, the sidewalls of the protrusion 154, and the outer wall between the sidewalls of the protrusion 154 and the sidewalls of the plate body 153 are configured as a step wall 152. The manhole cover 420 has an outer wall that matches the step 151, and the inner contour of the manhole cover 420 has a groove, so that the plate body 153 can be accommodated in the groove and abut against the groove wall of the groove, so that the plate body 153 can be placed on the ground without protruding relative to the manhole cover 420, thereby avoiding interference.

[0059] Furthermore, the waterproof strip is arranged between the groove wall of the groove and the outer wall between the side wall of the protrusion 154 and the side wall of the plate body 153, so that the water stop strip 340 can be supported by the groove wall of the groove, thereby improving the installation stability of the water stop strip 340.

[0060] See Figure 1 and Figure 2 In one embodiment, a conductive interface 155 is provided on the side of the protrusion 154 facing away from the plate body 153, and the power supply component 200 is electrically connected to the conductive interface 155 to supply power to the fan 130, thereby avoiding the power line between the controller 320 and the fan 130 being set in the ventilation hole 110, which makes the power line too long and inconvenient to arrange.

[0061] Furthermore, in the extension direction of the ventilation hole 110 , the conductive interface 155 is located outside the projected outer contour of the ventilation hole 110 , thereby shielding the conductive interface 155 and improving reliability.

[0062] See Figure 1 and Figure 2 The present application also provides an electric well equipment, including the aforementioned cable trench heat dissipation device, a cable trench 400, and a support frame 360. The support frame 360 is disposed within the cable trench 400 and connected to the inner wall of the cable trench 400. The support frame 360 is used to support the cable 410. In the present application, a power extraction member 200 is disposed within the cable trench 400 and is sheathed over the cable 410. When AC current passes through the cable 410, an induced current is generated on the power extraction member 200, thereby supplying power to the wind turbine 130. This avoids the need to install batteries and the frequent replacement of batteries, thereby saving the cost of the electric well equipment.

[0063] See Figure 2 and Figure 4 , Figure 4 A schematic diagram of a support frame for an electric well equipment according to one embodiment of the present application. In one embodiment, the support frame 360 includes a fixing plate 363, a support body 361, and a baffle 362. The fixing plate 363 is connected to the inner wall of the cable trench 400. One end of the support body 361 is connected to the fixing plate 363. The support body 361 is used to support the cable 410. The baffle 362 is disposed on the side of the support body 361 away from the fixing plate 363 and is partially projected upward. When the cable 410 is placed above the support body 361, the baffle 362 can prevent the cable 410 from sliding relative to the support body 361, thereby improving the reliability of the support frame 360 in supporting the cable 410. The fixing plate 363 is connected to the inner wall of the cable trench 400 via fasteners such as bolts.

[0064] Furthermore, the support frame 360 includes a reinforcing plate 364, one end of which is connected to the fixing plate 363 and the other end is connected to the support body 361, thereby forming a triangular structure to improve the stability of the connection between the support body 361 and the fixing plate 363. Preferably, the reinforcing plate 364 has a triangular structure, and two adjacent sides of the reinforcing plate 364 are respectively connected to the support body 361 and the fixing plate 363.

[0065] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A cable trench heat dissipation device, characterized in that: The cable trench heat dissipation device comprises: A support base, the support base is used to be installed on the cable trench, and the support base is provided with a ventilation hole, and the ventilation hole is used to be connected to the cable trench; A non-powered hood is mounted on the support base and is located at an end of the ventilation hole away from the cable trench; a fan, the fan being installed in the ventilation hole and being used to rotate to generate cooling air for heat dissipation; and The power taking component is located in the cable trench and is used to be sleeved on the cable in the cable trench to generate an induced current. The power taking component is electrically connected to the wind turbine to supply power to the wind turbine.

2. The cable trench heat dissipation device according to claim 1, characterized in that: The power extraction component includes a fixed ring and an induction coil. The fixed ring has a mounting hole for being sleeved on the cable. The induction coil is passed through the mounting hole and spirally wrapped around a partial ring segment of the fixed ring to induce current under the action of the magnetic field.

3. The cable trench heat dissipation device according to claim 2, characterized in that: The power extraction component further includes two elastic clips, both of which are used to be sleeved on the cable and are respectively arranged on both sides of the fixing ring to fix the position of the fixing ring on the cable.

4. The cable trench heat dissipation device according to claim 1, characterized in that: The cable trench heat dissipation device further comprises a power line expansion joint, which is arranged on the power line between the power taking component and the fan to achieve elastic expansion and contraction of the power line.

5. The cable trench heat dissipation device according to any one of claims 1 to 4, characterized in that: The cable trench heat dissipation device also includes a first temperature detection component and a controller. The controller and the first temperature detection component are used to be arranged in the cable trench, and the controller is electrically connected to the first temperature detection component, the fan and the power supply component. The power supply component is used to supply power to the controller. The first temperature detection component is used to detect the temperature in the cable trench. The controller controls the start and stop of the fan by setting a threshold and receiving temperature information collected by the first temperature detection component.

6. The cable trench heat dissipation device according to claim 5, characterized in that: The first temperature detecting member is used to be arranged on one side of the cable located in the middle area of the cable trench.

7. The cable trench heat dissipation device according to claim 5, characterized in that: The cable trench heat dissipation device also includes a second temperature detection component, which is electrically connected to the controller and is arranged on the outside of the support seat. The second temperature detection component is used to detect the current ambient temperature and transmit the current ambient temperature information to the controller. The controller obtains the set threshold value under the current environment based on the current ambient temperature information and the limit temperature of the cable while ensuring the transmission capacity.

8. The cable trench heat dissipation device according to any one of claims 1 to 4, characterized in that: The support seat includes an interconnected wind tube and a cover plate, the ventilation hole is arranged on the wind tube, and the unpowered wind hood is connected to the wind tube, the cover plate is sleeved on the wind tube and is located at one end away from the unpowered wind hood, and the cover plate is used to abut against the manhole cover of the cable trench to cover the manhole of the cable trench.

9. The cable trench heat dissipation device according to claim 8, characterized in that: The cable trench heat dissipation device further comprises a water stop strip, which is used to be arranged around the circumference of the wind tube between the cover plate and the manhole cover to provide waterproofing.

10. An electric well equipment, characterized in that: The cable trench heat dissipation device comprises the cable trench and a support frame, wherein the support frame is arranged in the cable trench and connected to the inner wall of the cable trench, and the support frame is used to support the cable.

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