Protective power distribution cabinet for an FSRU vessel

Abstract

The present application relates to power distribution cabinet technical field, specifically to a kind of protective power distribution cabinet for FSRU ship, including power distribution cabinet, the bottom of the power distribution cabinet is fixedly connected with moisture-proof box, the top of moisture-proof box is fixedly connected with two air extraction pipes, and the top of air extraction pipe extends into power distribution cabinet, the inner wall top of moisture-proof box is equipped with two first through holes matched with air extraction pipe;The top of the power distribution cabinet is equipped with first air inlet pipe, exhaust pipe and support column are fixedly connected in moisture-proof box, and the end, away from support column, of exhaust pipe is located outside moisture-proof box, and moisture-proof box is equipped with air inlet and outlet structure matched with exhaust pipe and first air inlet pipe respectively;It can actively and efficiently maintain the humidity in power distribution cabinet below dew point, thereby fundamentally eliminating the insulation decline and short-circuit risk caused by condensation, greatly improving the electrical safety of system, and protecting precision electronic components, thereby comprehensively prolonging the service life of power distribution cabinet.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and in particular to a protective power distribution cabinet for FSRU ships. Background Technology

[0002] FSRU vessels are specialized vessels that integrate liquefied natural gas receiving, storage, and regasification functions. They have become a key infrastructure for the rapid deployment of natural gas receiving stations in coastal areas. The regasification process of FSRU vessels typically relies on internal combustion engines, gas turbines, or heat exchange systems utilizing steam. Regardless of the technological approach adopted, the stable and reliable operation of its core process equipment (such as high-pressure pumps, evaporators, and compressors) depends on a continuous and high-quality power supply.

[0003] However, it is worth considering that shipboard electrical distribution cabinets are in a humid environment for a long time. The condensation of humid air inside the cabinet and on the surface of components can significantly reduce the insulation resistance of electrical components. This can easily lead to phase-to-phase short circuits and short circuits to ground, causing circuit breaker tripping or even fires, which is the most fatal risk.

[0004] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a protective distribution cabinet for FSRU ships to solve the problem that the condensation of humid air inside the cabinet and on the surface of components can significantly reduce the insulation resistance of electrical components, which can easily lead to phase-to-phase short circuits, short circuits to ground, circuit breaker tripping, or even fire.

[0006] To achieve the above objectives, the present invention provides a protective power distribution cabinet for FSRU ships, including a power distribution cabinet, a moisture-proof box fixedly connected to the bottom of the power distribution cabinet, two air extraction pipes fixedly connected to the top of the moisture-proof box, and the top of the air extraction pipes extending into the power distribution cabinet, and two first through holes adapted to the air extraction pipes are opened on the top of the inner wall of the moisture-proof box.

[0007] The top of the power distribution cabinet is provided with a first air inlet pipe, and an exhaust pipe and a support column are fixedly connected inside the moisture-proof box. The end of the exhaust pipe away from the support column is located outside the moisture-proof box. The moisture-proof box is provided with air inlet and outlet structures that are adapted to the exhaust pipe and the first air inlet pipe respectively.

[0008] The exhaust pipe and the support column are both rotatably fitted with side plates located inside the moisture-proof box. A drying unit for drying the gas is provided between the two side plates. A dryer for drying the drying unit is provided between the exhaust pipe and the support column. Two second through holes are opened on the inner wall of the moisture-proof box. A control component for controlling the closing of the first and second through holes is provided inside the moisture-proof box. A driver for driving the two side plates to rotate is provided on the moisture-proof box.

[0009] Optionally, the drying unit includes a first ventilated sleeve fixedly installed between two side plates, a second ventilated sleeve fitted over the outside of the first ventilated sleeve, and the two ends of the second ventilated sleeve being fixedly connected to the two side plates respectively, and a desiccant being provided between the first ventilated sleeve and the second ventilated sleeve.

[0010] Optionally, the dryer includes mounting rings that are respectively fixedly sleeved on the outside of the exhaust pipe and the support column, and the two mounting rings are located between the two side plates, and the two mounting rings are connected by a number of heating tubes.

[0011] Optionally, the driver includes a gear ring disposed inside the dehumidifying box, and the gear ring is fixedly connected to a corresponding side plate. A servo motor is fixedly connected to the dehumidifying box, and the output end of the servo motor is fixedly connected to a gear that meshes with the gear ring.

[0012] Optionally, the air inlet / outlet structure includes an air pump fixedly installed on the dehumidifying box, with one port of the air pump fixedly connected to the exhaust pipe, and the other port of the air pump connected to the first air inlet pipe via a connecting pipe. A second air inlet pipe is provided on the connecting pipe, and valves are provided on both the connecting pipe and the second air inlet pipe, with the height of the valve on the connecting pipe being higher than the height of the valve on the second air inlet pipe.

[0013] Optionally, the control component includes a sealing plate disposed below the first through hole, the top of the sealing plate contacting the top of the inner wall of the dehumidifying box, a third through hole adapted to the first through hole being provided on the sealing plate, a sealing element adapted to the second through hole being installed on the sealing plate, friction rings being fixedly connected to the two side plates on opposite sides, a friction unit adapted to the friction rings being provided below the sealing plate, and a reset element adapted to the sealing plate being provided inside the dehumidifying box.

[0014] Optionally, the friction unit includes a friction plate disposed below the sealing plate, the bottom of the friction plate being in contact with the friction ring, two first guide posts being fixedly connected to the sealing plate, a guide sleeve being slidably fitted on the outside of the first guide posts, the bottom end of the guide sleeve being fixedly connected to the friction plate, and the friction plate and the sealing plate being connected by a plurality of first compression springs.

[0015] Optionally, the reset component includes two support parts fixedly installed inside the dehumidifying box. A second guide post passes through the sealing plate. One end of the second guide post is fixedly connected to the support part, and the other end of the second guide post is fixedly connected to a stop plate. A second compression spring is sleeved on the outside of the second guide post, and the two ends of the second compression spring abut against the sealing plate and the support part respectively. The side of the stop plate facing the second guide post contacts the sealing plate.

[0016] Optionally, the sealing plate is provided with support strips on both sides, the support strips are fixedly connected to the inner wall of the moisture-proof box, and the support strips are provided with sliding grooves that are compatible with the sealing plate.

[0017] Optionally, the sealing element includes a screw rod fixedly installed on the sealing plate, the screw rod passing through a corresponding second through hole, a sealing disc adapted to the second through hole being sleeved on the outside of the screw rod, and the sealing disc being located outside the moisture-proof box. The sealing disc and the screw rod are connected by a threaded connection. A groove is provided at the end of the screw rod away from the sealing plate, and a movable block is slidably provided in the groove. A movable disc is provided at the end of the screw rod away from the sealing plate. One side of the movable block is fixedly connected to the movable disc, and the other side of the movable block is connected to the inner wall of the groove by a tension spring. A plurality of positioning grooves are provided on the sealing disc, and a plurality of positioning pins are fixedly connected on the movable disc, with the end of the positioning pin away from the movable disc located in the corresponding positioning groove.

[0018] The beneficial effects of this invention are as follows: The air inlet / outlet structure draws air from the moisture-proof box through the exhaust pipe, allowing air from the distribution cabinet to enter the moisture-proof box through the extraction pipe and the first through hole. The air is then dried by the drying unit before entering the exhaust pipe. The air inlet / outlet structure then inputs the dried air into the distribution cabinet through the first air inlet pipe, thereby reducing the humidity of the air inside the distribution cabinet. When it is necessary to dry the drying unit and reduce the water adsorbed on it, the first through hole is closed by the control component, and the second through hole is opened by the control component to start the dryer. The device dries the drying unit, increasing the humidity inside the moisture-proof box. The air intake and exhaust structure then draws in outside air through the exhaust pipe. The humidified air inside the box is then exhausted through a second through-hole, thus drying the drying unit. Simultaneously, the dried water vapor is expelled from the box, allowing the previously moisture-absorbing drying unit to be quickly reused. Furthermore, it actively and efficiently maintains the humidity inside the distribution cabinet below the dew point, fundamentally eliminating the risk of insulation degradation and short circuits caused by condensation, significantly improving the system's electrical safety. The dry microenvironment effectively inhibits electrochemical corrosion of conductive connectors inside the distribution cabinet, solving the persistent problems of increased contact resistance and localized overheating, and protecting precision electronic components, thereby comprehensively extending the service life of the distribution cabinet. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is a partial structural diagram of the interior of the dehumidifying box according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembled friction unit according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the disassembled sealing element according to an embodiment of the present invention;

[0024] Figure 5 This is a cross-sectional schematic diagram of the drying unit according to an embodiment of the present invention.

[0025] The diagram is marked as follows:

[0026] 1. Distribution cabinet; 2. Moisture-proof box; 3. Exhaust pipe; 4. First air inlet pipe; 5. Exhaust pipe; 6. Support column; 7. Side plate; 8. First through hole; 9. Second through hole; 10. First vent sleeve; 11. Second vent sleeve; 12. Desiccant; 13. Mounting ring; 14. Heating element; 15. Air pump; 16. Connecting pipe; 17. Second air inlet pipe; 18. Sealing plate; 19. Friction ring; 20. Sealing disc; 21. Third through hole; 22. Friction plate; 23. First guide post; 24. Guide sleeve; 25. First compression spring; 26. Support part; 27. Second guide post; 28. Second compression spring; 29. ​​Stop plate; 30. Support bar; 31. Slide groove; 32. Lead screw; 33. Movable plate; 34. Groove; 35. Movable block; 36. Tension spring; 37. Positioning groove; 38. Positioning post; 39. Gear ring; 40. Servo motor; 41. Gear. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0028] Example 1, by Figure 1 , Figure 2 and Figure 5 The present invention includes a power distribution cabinet 1, a moisture-proof box 2 fixedly connected to the bottom of the power distribution cabinet 1, two air extraction pipes 3 fixedly connected to the top of the moisture-proof box 2, and the top of the air extraction pipes 3 extending into the power distribution cabinet 1. Two first through holes 8 adapted to the air extraction pipes 3 are opened on the top of the inner wall of the moisture-proof box 2.

[0029] The top of the power distribution cabinet 1 is provided with a first air inlet pipe 4. The moisture-proof box 2 is fixedly connected with an exhaust pipe 5 and a support column 6. The end of the exhaust pipe 5 away from the support column 6 is located outside the moisture-proof box 2. The moisture-proof box 2 is provided with air inlet and outlet structures that are adapted to the exhaust pipe 5 and the first air inlet pipe 4 respectively.

[0030] Both the exhaust pipe 5 and the support column 6 are rotatably fitted with side plates 7 located inside the moisture-proof box 2. A drying unit for drying the gas is provided between the two side plates 7. A dryer for drying the drying unit is provided between the exhaust pipe 5 and the support column 6. Two second through holes 9 are opened on the inner wall of the moisture-proof box 2. A control component for controlling the closing of the first through hole 8 and the second through hole 9 is provided inside the moisture-proof box 2. A driver for driving the two side plates 7 to rotate is provided on the moisture-proof box 2. The air inlet and outlet structure draws air from the moisture-proof box 2 through the exhaust pipe 5, so that the air in the distribution cabinet 1 enters the moisture-proof box 2 through the air extraction pipe 3 and the first through hole 8. The air is then dried by the drying unit and enters the exhaust pipe 5. The air inlet and outlet structure then inputs the dried air into the distribution cabinet 1 through the first air inlet pipe 4, thereby reducing the temperature inside the distribution cabinet 1. To reduce the humidity of the air and thus the moisture absorbed by the drying unit, the first through-hole 8 is closed by a control component, and the second through-hole 9 is opened by the same component. This activates the dryer, which dries the drying unit. The increased humidity inside the moisture-proof box 2, combined with the intake and exhaust pipe 5, draws in outside air. The humidified air inside the box is then exhausted through the second through-hole 9, drying the drying unit and simultaneously expelling the dried water vapor. This allows the previously humidified drying unit to be quickly reused. Furthermore, it actively and efficiently maintains the humidity inside the distribution cabinet 1 below the dew point, fundamentally eliminating the risk of insulation degradation and short circuits caused by condensation, significantly improving the electrical safety of the system. The dry microenvironment effectively inhibits electrochemical corrosion of conductive connectors inside the distribution cabinet 1, solving the problems of increased contact resistance and localized overheating, and protecting precision electronic components, thereby comprehensively extending the service life of the distribution cabinet.

[0031] Example 2, based on Example 1, is... Figure 1 , Figure 2 and Figure 5The drying unit includes a first ventilated sleeve 10 fixedly installed between two side plates 7. A second ventilated sleeve 11 is fitted over the first ventilated sleeve 10, and both ends of the second ventilated sleeve 11 are fixedly connected to the two side plates 7 respectively. A desiccant 12 is provided between the first ventilated sleeve 10 and the second ventilated sleeve 11. The dryer includes mounting rings 13 fixedly fitted over the exhaust pipe 5 and the support column 6 respectively, and the two mounting rings 13 are located between the two side plates 7. The two mounting rings 13 are connected by several heating tubes 14. The driver includes a gear ring 39 disposed in the moisture-proof box 2, and the gear ring 39 and the phase A corresponding side plate 7 is fixedly connected. A servo motor 40 is fixedly connected to the dehumidifying box 2. A gear 41 that meshes with a gear ring 39 is fixedly connected to the output end of the servo motor 40. The air inlet and outlet structure includes an air pump 15 fixedly installed on the dehumidifying box 2. One port of the air pump 15 is fixedly connected to the exhaust pipe 5. The other port of the air pump 15 is connected to the first air inlet pipe 4 through a connecting pipe 16. A second air inlet pipe 17 is provided on the connecting pipe 16. Valves are provided on both the connecting pipe 16 and the second air inlet pipe 17. The height of the valve on the connecting pipe 16 is higher than the height of the valve on the second air inlet pipe 17.

[0032] Open the valve on connecting pipe 16, close the valve on the second air inlet pipe 17, and start the air pump 15. The air pump 15 draws air from the dehumidifying box 2 into the connecting pipe 16 through the exhaust pipe 5. The air in the connecting pipe 16 enters the distribution cabinet 1 through the first air inlet pipe 4. The air in the distribution cabinet 1 flows back into the dehumidifying box 2 through the exhaust pipe 3 and the first through hole 8. The air in the dehumidifying box 2 then enters the exhaust pipe 5 again through the second vent sleeve 11, the desiccant 12, and the first vent sleeve 10. The flowing air is dried by the desiccant 12. When the desiccant 12 needs to be dried, the first through hole 8 is closed by controlling the control component, and the second through hole 9 is opened by controlling the control component, thus closing the connecting pipe 16. Open the valve on the second air inlet pipe 17. The air pump 15 draws external air into the first ventilated sleeve 10 through the second air inlet pipe 17, connecting pipe 16 and exhaust pipe 5. Start the heating tube 14 to heat and dry the desiccant 12. The servo motor 40 drives the gear 41 to rotate. The gear 41 drives the side plate 7 to rotate relative to the heating tube 14 through the gear ring 39, so that the desiccant 12 located between the first ventilated sleeve 10 and the second ventilated sleeve 11 rotates, ensuring that the desiccant 12 is dried evenly. The air with increased humidity in the dehumidification box 2 is discharged through the second through hole 9, which can reduce the water content on the desiccant 12 and allow the previously dehumidified drying unit to be quickly put back into use.

[0033] Example 3, based on Example 2, by Figure 2 , Figure 3 and Figure 4The control assembly includes a sealing plate 18 disposed below the first through hole 8. The top of the sealing plate 18 contacts the top of the inner wall of the dehumidifying box 2. A third through hole 21 adapted to the first through hole 8 is provided on the sealing plate 18. A sealing element adapted to the second through hole 9 is installed on the sealing plate 18. Friction rings 19 are fixedly connected to the two side plates 7 on opposite sides. A friction unit adapted to the friction rings 19 is provided below the sealing plate 18. A reset element adapted to the sealing plate 18 is provided inside the dehumidifying box 2. The friction unit includes a friction plate 22 disposed below the sealing plate 18. The bottom of the friction plate 22... The part contacts the friction ring 19. Two first guide posts 23 are fixedly connected to the sealing plate 18. A guide sleeve 24 is slidably sleeved on the outside of the first guide post 23. The bottom end of the guide sleeve 24 is fixedly connected to the friction plate 22. The friction plate 22 and the sealing plate 18 are connected by several first compression springs 25. The reset component includes two support parts 26 fixedly installed in the dehumidifying box 2. A second guide post 27 passes through the sealing plate 18. One end of the second guide post 27 is fixedly connected to the support part 26. The other end of the second guide post 27 is fixedly connected to a stop plate 29. A second compression spring 25 is sleeved on the outside of the second guide post 27. A compression spring 28 is provided, with both ends of the second compression spring 28 abutting against the sealing plate 18 and the support part 26 respectively. The stop plate 29 is in contact with the sealing plate 18 on the side facing the second guide post 27. Support bars 30 are provided on both sides of the sealing plate 18, and the support bars 30 are fixedly connected to the inner wall of the moisture-proof box 2. The support bars 30 are provided with a sliding groove 31 that matches the sealing plate 18. The sealing element includes a screw 32 fixedly installed on the sealing plate 18. The screw 32 passes through the corresponding second through hole 9. A sealing plate 20 that matches the second through hole 9 is sleeved on the outside of the screw 32, and the sealing plate 20 is located in the moisture-proof box. On the outside of box 2, the sealing disc 20 and the lead screw 32 are connected by a threaded connection. The end of the lead screw 32 away from the sealing plate 18 has a groove 34. A movable block 35 is slidably arranged in the groove 34. The end of the lead screw 32 away from the sealing plate 18 has a movable disc 33. One side of the movable block 35 is fixedly connected to the movable disc 33. The other side of the movable block 35 is connected to the inner wall of the groove 34 by a tension spring 36. The sealing disc 20 has several positioning grooves 37. Several positioning posts 38 are fixedly connected to the movable disc 33. The end of the positioning post 38 away from the movable disc 33 is located in the corresponding positioning groove 37.

[0034] The third through hole 21 and the first through hole 8 are aligned. The operator drives the movable disc 33 and the movable block 35 to slide relative to the groove 34. The tension spring 36 is in a stretched state, and the end of the positioning pin 38 driven by the movable disc 33 disengages from the corresponding positioning groove 37, releasing the restriction on the position of the sealing disc 20. The operator drives the sealing disc 20 to rotate relative to the lead screw 32, controlling the distance between the sealing disc 20 and the dehumidifying box 2. When the sealing disc 20 abuts against the outer wall of the dehumidifying box 2, the sealing disc 20 seals the second through hole 9. The operator releases the movable disc 33, and the tension spring 36 drives the movable block 35 and the movable disc 33 to move, so that the end of the positioning pin 38 is inserted into the corresponding positioning groove 37, thereby preventing the sealing disc 20 from rotating relative to the lead screw 32 due to non-human factors. When the first compression spring 25 is initially compressed, it applies pressure to the friction plate 22, causing the friction plate 22 to adhere tightly to the outer wall of the friction ring 19. Meanwhile, the second compression spring 28 is compressed, applying a pushing force to the sealing plate 18, causing the sealing plate 18 to abut against the stop disc 29. The sealing plate 18 is fixed relative to the moisture-proof box 2. When the desiccant 12 needs to be dried, and the driver drives the side plate 7 and the desiccant 12 to rotate, the side plate 7 drives the friction ring 19 to rotate synchronously. The friction ring 19 drives the friction plate 22 to move synchronously in the horizontal direction through friction. The friction plate 22 drives the sealing plate 18 to translate through the guide sleeve 24 and the first guide post 23, so that the third through hole 21 is no longer located in the first through hole 8. Below, the sealing plate 18 seals the first through hole 8, and the sealing plate 18 drives the sealing disc 20 to move via the lead screw 32, so that the sealing disc 20 no longer seals the second through hole 9, thus closing the first through hole 8 and opening the second through hole 9. As the sealing plate 18 continues to move, the sealing plate 18 slides relative to the support bar 30 and the slide groove 31. Through the design of the support bar 30 and the slide groove 31, the sealing plate 18 moves smoothly relative to the moisture-proof box 2, and the sealing plate 18 slides relative to the second guide post 27. The length of the second compression spring 28 becomes shorter, and the sealing plate 18 no longer contacts the stop disc 29. When the thrust of the second compression spring 28 on the sealing plate 18 reaches the preset value, the friction ring 19 can no longer drive the friction plate 22 and the sealing plate 18 through friction. During continuous translation and rotation of the side plate 7, the first through hole 8 can be closed and the second through hole 9 can be opened. Similarly, when it is necessary to open the first through hole 8 and close the second through hole 9, the driver drives the side plate 7 to rotate in the opposite direction, so that the friction ring 19 drives the friction plate 22 to move in the opposite direction to the initial position through friction, and the sealing plate 18 slides in the opposite direction relative to the second guide post 27 until the sealing plate 18 abuts against the stop plate 29 again, so that the sealing plate 18 returns to the initial position relative to the moisture-proof box 2, the third through hole 21 is aligned with the first through hole 8 again, and the sealing plate 20 closes and seals the second through hole 9. The air in the distribution cabinet 1 can then enter the moisture-proof box 2 again through the exhaust pipe 3, and prevent external air from entering the moisture-proof box 2 through the second through hole 9.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. A protective switchgear for FSRU ships, comprising a switchgear (1), characterized in that, The bottom of the power distribution cabinet (1) is fixedly connected to a moisture-proof box (2), and the top of the moisture-proof box (2) is fixedly connected to two air extraction pipes (3), and the top of the air extraction pipes (3) extends into the power distribution cabinet (1). The top of the inner wall of the moisture-proof box (2) has two first through holes (8) that are compatible with the air extraction pipes (3). The top of the power distribution cabinet (1) is provided with a first air inlet pipe (4), and the moisture-proof box (2) is fixedly connected with an exhaust pipe (5) and a support column (6). The end of the exhaust pipe (5) away from the support column (6) is located outside the moisture-proof box (2). The moisture-proof box (2) is provided with an air inlet and outlet structure that is adapted to the exhaust pipe (5) and the first air inlet pipe (4) respectively. The exhaust pipe (5) and the support column (6) are both rotatably fitted with side plates (7) located inside the moisture-proof box (2). A drying unit for drying gas is provided between the two side plates (7). A dryer for drying the drying unit is provided between the exhaust pipe (5) and the support column (6). Two second through holes (9) are opened on the inner wall of the moisture-proof box (2). A control component for controlling the closing of the first through hole (8) and the second through hole (9) is provided inside the moisture-proof box (2). A driver for driving the two side plates (7) to rotate is provided on the moisture-proof box (2). The control assembly includes a sealing plate (18) disposed below the first through hole (8), the top of the sealing plate (18) being in contact with the top of the inner wall of the moisture-proof box (2), a third through hole (21) adapted to the first through hole (8) being provided on the sealing plate (18), a sealing element adapted to the second through hole (9) being installed on the sealing plate (18), a friction ring (19) being fixedly connected to the two side plates (7) on opposite sides, a friction unit adapted to the friction ring (19) being provided below the sealing plate (18), and a reset element adapted to the sealing plate (18) being provided inside the moisture-proof box (2).

2. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The drying unit includes a first breathable sleeve (10) fixedly installed between two side plates (7), a second breathable sleeve (11) is fitted on the outside of the first breathable sleeve (10), and the two ends of the second breathable sleeve (11) are fixedly connected to the two side plates (7) respectively. A desiccant (12) is provided between the first breathable sleeve (10) and the second breathable sleeve (11).

3. The protective distribution cabinet for FSRU ships according to claim 2, characterized in that, The dryer includes mounting rings (13) that are fixedly sleeved on the outside of the exhaust pipe (5) and the support column (6), and the two mounting rings (13) are located between the two side plates (7). The two mounting rings (13) are connected by several heating tubes (14).

4. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The driver includes a gear ring (39) disposed in the dehumidifying box (2), and the gear ring (39) is fixedly connected to a corresponding side plate (7). A servo motor (40) is fixedly connected to the dehumidifying box (2), and a gear (41) meshing with the gear ring (39) is fixedly connected to the output end of the servo motor (40).

5. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The air inlet and outlet structure includes an air pump (15) fixedly installed on the dehumidifying box (2), and one port of the air pump (15) is fixedly connected to the exhaust pipe (5). The other port of the air pump (15) is connected to the first air inlet pipe (4) through a connecting pipe (16). A second air inlet pipe (17) is provided on the connecting pipe (16). Valves are provided on both the connecting pipe (16) and the second air inlet pipe (17), and the height of the valve on the connecting pipe (16) is higher than the height of the valve on the second air inlet pipe (17).

6. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The friction unit includes a friction plate (22) disposed below the sealing plate (18). The bottom of the friction plate (22) is in contact with the friction ring (19). Two first guide posts (23) are fixedly connected to the sealing plate (18). A guide sleeve (24) is slidably sleeved on the outside of the first guide post (23). The bottom end of the guide sleeve (24) is fixedly connected to the friction plate (22). The friction plate (22) and the sealing plate (18) are connected by several first compression springs (25).

7. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The reset component includes two support parts (26) fixedly installed inside the moisture-proof box (2). A second guide post (27) passes through the sealing plate (18). One end of the second guide post (27) is fixedly connected to the support part (26), and the other end of the second guide post (27) is fixedly connected to a stop plate (29). A second compression spring (28) is sleeved on the outside of the second guide post (27), and the two ends of the second compression spring (28) abut against the sealing plate (18) and the support part (26) respectively. The side of the stop plate (29) facing the second guide post (27) contacts the sealing plate (18).

8. The protective distribution cabinet for FSRU ships according to claim 7, characterized in that, The sealing plate (18) is provided with support strips (30) on both sides respectively. The support strips (30) are fixedly connected to the inner wall of the moisture-proof box (2). The support strips (30) are provided with grooves (31) that are compatible with the sealing plate (18).

9. The protective distribution cabinet for FSRU ships according to claim 1, characterized in that, The sealing element includes a threaded rod (32) fixedly installed on the sealing plate (18), the threaded rod (32) passing through the corresponding second through hole (9), and a sealing disc (20) adapted to the second through hole (9) sleeved on the outside of the threaded rod (32), and the sealing disc (20) is located outside the moisture-proof box (2). The sealing disc (20) and the threaded rod (32) are connected by a threaded connection. A groove (34) is opened at the end of the threaded rod (32) away from the sealing plate (18), and a movable block is slidably provided in the groove (34). 35), the end of the lead screw (32) away from the sealing plate (18) is provided with a movable plate (33), one side of the movable block (35) is fixedly connected to the movable plate (33), the other side of the movable block (35) is connected to the inner wall of the groove (34) by a tension spring (36), the sealing plate (20) is provided with several positioning grooves (37), the movable plate (33) is fixedly connected with several positioning posts (38), and the end of the positioning post (38) away from the movable plate (33) is located in the corresponding positioning groove (37).

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