Automatic control device for aeration and cooling of J-shaped pipe of submarine cable

Abstract

The utility model discloses a submarine cable J-shaped pipe ventilation cooling automatic control device comprising a submarine cable J-shaped pipe air section structure, and a J-shaped pipe of the submarine cable J-shaped pipe air section structure is uniformly provided with four groups of ventilation structures with the same structure along the circumferential direction. The four ventilation structures are further connected with a ventilation opening automatic control device arranged in the submarine cable J-shaped pipe air section structure, the ventilation opening automatic control device is further connected with a transmission device installed on an offshore booster station platform, and the transmission device is further connected with a meteorological sensor installed on the offshore booster station platform in a wireless connection mode. According to the utility model, a good ventilation cooling effect of the submarine cable J-shaped pipe air section is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of online monitoring of power transmission lines, and in particular relates to an automatic ventilation and cooling control device for a J-shaped tube of a submarine cable. Background Art

[0002] As offshore wind power gradually develops further offshore, the total installed capacity is growing rapidly, and the current carrying capacity of submarine cables is becoming more and more a key issue. In order to improve the utilization rate of electric energy, avoid waste of resources, and solve the problem of new energy consumption, it is urgent to increase the current carrying capacity of submarine cables.

[0003] Affected by different laying environments and meteorological factors, the current carrying capacity of the J-tube air section of submarine cables still has a lot of room for improvement. Due to the closed nature of the J-tube air section of the submarine cable, the heat dissipation conditions of this laying section are poor, thus limiting the current carrying capacity; therefore, it is necessary to effectively cool it to increase the current carrying capacity of the submarine cable.

[0004] At present, there are related technologies that use condensing agents and installation of ventilation facilities to improve the heat dissipation environment of the J-tube air section of the submarine cable, but there are still problems such as short service life and equipment damage and maintenance. Regular maintenance is required, which consumes manpower and material resources. Utility Model Content

[0005] The utility model aims to provide an automatic ventilation and cooling control device for a submarine cable J-tube, so as to achieve good ventilation and cooling effect for the air section of the submarine cable J-tube.

[0006] The technical solution adopted by the utility model is a submarine cable J-tube ventilation and cooling automatic control device, comprising a submarine cable J-tube air section structure, the J-tube of the submarine cable J-tube air section structure is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction, the four groups of ventilation structures are also connected to the vent automatic control device arranged inside the submarine cable J-tube air section structure, the vent automatic control device is also connected to a transmission device installed on an offshore booster station platform, and the transmission device is connected to a meteorological sensor installed on the offshore booster station platform through a wireless connection.

[0007] The utility model is also characterized in that:

[0008] Each ventilation structure consists of three vents evenly spaced along the vertical direction of the J-shaped tube. Each vent is vertically connected to the ventilation duct. There are 12 vents in total. The three vents in each vertical column correspond to a wind direction. The four vertical columns correspond to the southeast, northwest, and northeast wind directions respectively. The ventilation duct and the J-shaped tube are an integrated steel structure.

[0009] The specific structure of the vent automatic control device is: it includes slide rails arranged on both sides of the three vents in each longitudinal column, and three valves are movably arranged on a pair of slide rails along the vertical direction. The slide rails serve as tracks for the three valves in each longitudinal column to move up and down. Each valve corresponds to a vent, and the opening and closing movements of the three valves in each longitudinal column are consistent. Each valve is connected to the transmission device through a nylon rope.

[0010] The ventilation duct is funnel-shaped, and the end of the ventilation duct with a small opening is connected to the ventilation port.

[0011] The radius of the vent is 15-25mm.

[0012] The valve is a semi-arc aluminum valve with a valve height of 20-35mm and a thickness of 2-8mm.

[0013] The beneficial effect of the utility model is that the J-tube ventilation and cooling automatic control device for submarine cables utilizes the natural strong wind at sea and the ventilation J-tube structure designed based on the throttling expansion effect to replace the refrigeration device to achieve the ventilation and cooling effect. The vent automatic control device is designed to select the opening direction of the vent according to the real-time wind direction and wind speed to achieve the optimal cooling effect. Compared with the existing technology, it can ventilate and dissipate heat for the J-tube in a more economical and environmentally friendly way and with simple and convenient operation; on the basis of solving the problem of increasing the current carrying capacity of the J-tube of the submarine cable, energy saving and emission reduction are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model submarine cable J-tube ventilation and cooling automatic control device;

[0015] Figure 2 This is a front view of the J-tube air section of the utility model submarine cable J-tube ventilation and cooling automatic control device;

[0016] Figure 3 This is a top view of the J-tube air section of the utility model submarine cable J-tube ventilation and cooling automatic control device;

[0017] Figure 4 This is a partial cross-sectional installation diagram of an adjustable vent automatic control device for ventilation and cooling on the windward side of a J-shaped submarine cable tube of the utility model;

[0018] Figure 5 This is a partial cross-sectional installation diagram of an adjustable vent automatic control device for ventilation and cooling automatic control device on the leeward side of a J-type submarine cable;

[0019] Figure 6 The utility model discloses a working diagram of an adjustable vent automatic control device of a submarine cable J-tube ventilation and cooling automatic control device.

[0020] In the figure, 1. J-tube air section structure, 1-1. J-tube, 1-2. vent, 1-3. ventilation duct, 2. transmission device, 3. offshore booster station platform, 4. vent automatic control device, 4-1. slide rail, 4-2. nylon rope, 4-3. valve, 5. meteorological sensor. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0022] The utility model discloses a J-type tube ventilation and cooling automatic control device for submarine cables, the structure of which is as follows: Figure 1 As shown, it includes a submarine cable J-tube air section structure 1, and the J-tube 1-1 of the submarine cable J-tube air section structure 1 is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction. The four groups of ventilation structures are also connected to the vent automatic control device arranged inside the submarine cable J-tube air section structure 1, and the vent automatic control device is also connected to the transmission device 2 installed on the offshore booster station platform, and the transmission device 2 is connected to the meteorological sensor 5 installed on the offshore booster station platform through a wireless connection. The wind direction and wind speed data collected by the meteorological sensor 5 are transmitted to the transmission device 2 through the lora wireless communication technology, and the opening and closing of the valve are controlled according to the wind direction, so that the vents on the windward side are always kept in an open state, and the vents on the leeward side are always kept in a closed state.

[0023] The ventilation J-tube air section structure is based on the principle of throttling expansion and cooling, and is designed using the unique natural condition - offshore wind resources. It introduces high-speed strong winds from the sea through the funnel-shaped ventilation duct, so that the high-speed airflow passes through the small holes and expands to low pressure after being hindered to a certain extent, which has a cooling effect in the process.

[0024] Each ventilation structure comprises three ventilation holes 1-2 evenly arranged along the vertical direction of the J-shaped tube 1-1. Each ventilation hole 1-2 is vertically connected to the ventilation duct 1-3. There are 12 ventilation holes 1-2 in total. The three ventilation holes 1-2 in each vertical column correspond to one wind direction. The four vertical columns correspond to the four wind directions of southeast, northwest, and northeast respectively. The ventilation duct 1-3 and the J-shaped tube 1-1 are an integrated steel structure.

[0025] The specific structure of the vent automatic control device is as follows: it includes slide rails 4-1 arranged on both sides of the three vents 1-2 in each longitudinal column, and three valves 4-3 are movably arranged on a pair of slide rails 4-1 along the vertical direction. The slide rails 4-1 serve as tracks for the three valves 4-3 in each longitudinal column to move up and down. Each valve 4-3 corresponds to a vent 1-2, and the opening and closing movements of the three valves 4-3 in each longitudinal column are consistent. Each valve 4-3 is connected to the transmission device 2 through a nylon rope 4-2.

[0026] The ventilation duct 1-3 is funnel-shaped, and the end of the ventilation duct 1-3 with a small opening is connected to the ventilation port 1-2.

[0027] The radius of the vents 1-2 is 15-25 mm.

[0028] The valve 4-3 is a semi-arc aluminum valve, the height of the valve 4-3 is 20-35 mm, and the thickness is 2-8 mm, so that the small hole is completely covered.

[0029] The transmission device 2 is an AQMD6030NS series DC motor driver, which is connected to the meteorological sensor 5. The output signal of the meteorological sensor 5 is transmitted to the AQMD6030NS series DC motor driver, which connects the motor driver to a DC motor of corresponding power to control the direction switching and automatic braking and starting functions of the DC motor. The DC motor is connected to the nylon rope 4-2 through a pulley to control the opening and closing of the valve.

[0030] Example 1

[0031] The utility model discloses a J-type tube ventilation and cooling automatic control device for submarine cables, the structure of which is as follows: Figure 1 As shown, it includes a submarine cable J-tube air section structure 1, and the J-tube 1-1 of the submarine cable J-tube air section structure 1 is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction. The four groups of ventilation structures are also connected to the vent automatic control device arranged inside the submarine cable J-tube air section structure 1, and the vent automatic control device is also connected to the transmission device 2 installed on the offshore booster station platform, and the transmission device 2 is connected to the meteorological sensor 5 installed on the offshore booster station platform through a wireless connection. The wind direction and wind speed data collected by the meteorological sensor 5 are transmitted to the transmission device 2 through the lora wireless communication technology, and the opening and closing of the valve are controlled according to the wind direction, so that the vents on the windward side are always kept in an open state, and the vents on the leeward side are always kept in a closed state.

[0032] The ventilation J-tube air section structure is based on the principle of throttling expansion and cooling, and is designed using the unique natural condition - offshore wind resources. It introduces high-speed strong winds from the sea through the funnel-shaped ventilation duct, so that the high-speed airflow passes through the small holes and expands to low pressure after being hindered to a certain extent, which has a cooling effect in the process.

[0033] The specific structure of the vent automatic control device is as follows: it includes slide rails 4-1 arranged on both sides of the three vents 1-2 in each longitudinal column, and three valves 4-3 are movably arranged on a pair of slide rails 4-1 along the vertical direction. The slide rails 4-1 serve as tracks for the three valves 4-3 in each longitudinal column to move up and down. Each valve 4-3 corresponds to a vent 1-2, and the opening and closing movements of the three valves 4-3 in each longitudinal column are consistent. Each valve 4-3 is connected to the transmission device 2 through a nylon rope 4-2.

[0034] The ventilation duct 1-3 is funnel-shaped, and the end of the ventilation duct 1-3 with a small opening is connected to the ventilation port 1-2.

[0035] The radius of the vents 1-2 is 15-25 mm.

[0036] The valve 4-3 is a semi-arc aluminum valve, the height of the valve 4-3 is 20-35 mm, and the thickness is 2-8 mm, so that the small hole is completely covered.

[0037] Example 2

[0038] The utility model discloses a J-type tube ventilation and cooling automatic control device for submarine cables, the structure of which is as follows: Figure 1 As shown, it includes a submarine cable J-tube air section structure 1, and the J-tube 1-1 of the submarine cable J-tube air section structure 1 is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction. The four groups of ventilation structures are also connected to the vent automatic control device arranged inside the submarine cable J-tube air section structure 1, and the vent automatic control device is also connected to the transmission device 2 installed on the offshore booster station platform, and the transmission device 2 is connected to the meteorological sensor 5 installed on the offshore booster station platform through a wireless connection. The wind direction and wind speed data collected by the meteorological sensor 5 are transmitted to the transmission device 2 through the lora wireless communication technology, and the opening and closing of the valve are controlled according to the wind direction, so that the vents on the windward side are always kept in an open state, and the vents on the leeward side are always kept in a closed state.

[0039] The ventilation J-tube air section structure is based on the principle of throttling expansion and cooling, and is designed using the unique natural condition - offshore wind resources. It introduces high-speed strong winds from the sea through the funnel-shaped ventilation duct, so that the high-speed airflow passes through the small holes and expands to low pressure after being hindered to a certain extent, which has a cooling effect in the process.

[0040] Each ventilation structure comprises three ventilation holes 1-2 evenly arranged along the vertical direction of the J-shaped tube 1-1. Each ventilation hole 1-2 is vertically connected to the ventilation duct 1-3. There are 12 ventilation holes 1-2 in total. The three ventilation holes 1-2 in each vertical column correspond to one wind direction. The four vertical columns correspond to the four wind directions of southeast, northwest, and northeast respectively. The ventilation duct 1-3 and the J-shaped tube 1-1 are an integrated steel structure.

[0041] The valve 4-3 is a semi-arc aluminum valve, the height of the valve 4-3 is 20-35 mm, and the thickness is 2-8 mm, so that the small hole is completely covered.

[0042] Example 3

[0043] The utility model discloses a J-type tube ventilation and cooling automatic control device for submarine cables, the structure of which is as follows: Figure 1As shown, it includes a submarine cable J-tube air section structure 1, and the J-tube 1-1 of the submarine cable J-tube air section structure 1 is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction. The four groups of ventilation structures are also connected to the vent automatic control device arranged inside the submarine cable J-tube air section structure 1, and the vent automatic control device is also connected to the transmission device 2 installed on the offshore booster station platform, and the transmission device 2 is connected to the meteorological sensor 5 installed on the offshore booster station platform through a wireless connection. The wind direction and wind speed data collected by the meteorological sensor 5 are transmitted to the transmission device 2 through the lora wireless communication technology, and the opening and closing of the valve are controlled according to the wind direction, so that the vents on the windward side are always kept in an open state, and the vents on the leeward side are always kept in a closed state.

[0044] The ventilation J-tube air section structure is based on the principle of throttling expansion and cooling, and is designed using the unique natural condition - offshore wind resources. It introduces high-speed strong winds from the sea through the funnel-shaped ventilation duct, so that the high-speed airflow passes through the small holes and expands to low pressure after being hindered to a certain extent, which has a cooling effect in the process.

[0045] Each ventilation structure comprises three ventilation holes 1-2 evenly arranged along the vertical direction of the J-shaped tube 1-1. Each ventilation hole 1-2 is vertically connected to the ventilation duct 1-3. There are 12 ventilation holes 1-2 in total. The three ventilation holes 1-2 in each vertical column correspond to one wind direction. The four vertical columns correspond to the four wind directions of southeast, northwest, and northeast respectively. The ventilation duct 1-3 and the J-shaped tube 1-1 are an integrated steel structure.

[0046] The specific structure of the vent automatic control device is as follows: it includes slide rails 4-1 arranged on both sides of the three vents 1-2 in each longitudinal column, and three valves 4-3 are movably arranged on a pair of slide rails 4-1 along the vertical direction. The slide rails 4-1 serve as tracks for the three valves 4-3 in each longitudinal column to move up and down. Each valve 4-3 corresponds to a vent 1-2, and the opening and closing movements of the three valves 4-3 in each longitudinal column are consistent. Each valve 4-3 is connected to the transmission device 2 through a nylon rope 4-2.

[0047] The ventilation duct 1-3 is funnel-shaped, and the end of the ventilation duct 1-3 with a small opening is connected to the ventilation port 1-2.

[0048] The radius of the vents 1-2 is 15-25 mm.

[0049] The meteorological sensor monitors the wind direction data near the J-tube in real time, and transmits the data to the transmission device through wireless technology. The opening and closing of the vent valves are controlled according to the wind speed and direction received by the transmission device: when the north wind signal is received, the transmission device gives an instruction, and the valves inside the three vents facing north move upward and open, while the valves of the vents in the other three directions do not move, so that strong wind cools down the J-tube through the ventilation duct and injects cold air into the inside, while the other vents are closed to prevent cold air from flowing out; when the northwest wind signal is received, the valves of the two vents in the two rows facing west and north are opened, and the other vents are closed.

[0050] The automatic vent control device is an integrated connection, which is simple and quick to install, convenient for maintenance at any time and saves costs.

Claims

1. The J-tube ventilation and cooling automatic control device for submarine cables is characterized by: The invention comprises a submarine cable J-tube air section structure (1), wherein the J-tube (1-1) of the submarine cable J-tube air section structure (1) is evenly provided with four groups of ventilation structures with the same structure along the circumferential direction, the four groups of ventilation structures are also connected to an automatic vent control device arranged inside the submarine cable J-tube air section structure (1), the automatic vent control device is also connected to a transmission device (2) installed on an offshore booster station platform, and the transmission device (2) is connected to a meteorological sensor (5) installed on the offshore booster station platform via a wireless connection.

2. The automatic control device for ventilation and cooling of submarine cable J-tube according to claim 1 is characterized in that: Each group of the ventilation structures specifically comprises three ventilation openings (1-2) evenly arranged in the vertical direction of the J-shaped tube (1-1), each ventilation opening (1-2) being vertically connected to the ventilation duct (1-3), and there are a total of 12 ventilation openings (1-2), the three ventilation openings (1-2) in each vertical row corresponding to one wind direction, and the four vertical rows corresponding to the four wind directions of east, south, west and north respectively, and the ventilation duct (1-3) and the J-shaped tube (1-1) are an integrated steel structure.

3. The automatic ventilation and cooling control device for submarine cable J-tube according to claim 2 is characterized in that: The specific structure of the ventilation hole automatic control device is as follows: it includes slide rails (4-1) arranged on both sides of the three ventilation holes (1-2) in each longitudinal column, and three valves (4-3) are movably arranged on a pair of slide rails (4-1) in the vertical direction. The slide rails (4-1) serve as tracks for the three valves (4-3) in each longitudinal column to move up and down. Each valve (4-3) corresponds to a ventilation hole (1-2). The opening and closing movements of the three valves (4-3) in each longitudinal column are consistent, and each valve (4-3) is connected to the transmission device (2) via a nylon rope (4-2).

4. The automatic ventilation and cooling control device for submarine cable J-tube according to claim 3 is characterized in that: The ventilation duct (1-3) is funnel-shaped, and the end of the ventilation duct (1-3) with a smaller opening is connected to the ventilation port (1-2).

5. The automatic ventilation and cooling control device for submarine cable J-tube according to claim 4 is characterized in that: The radius of the ventilation opening (1-2) is 15-25 mm.

6. The automatic ventilation and cooling control device for submarine cable J-tube according to claim 4 is characterized in that: The valve (4-3) is a semi-arc aluminum valve, the height of the valve (4-3) is 20-35 mm, and the thickness is 2-8 mm.

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