A multi-channel circulating-cooled dry-type transformer and a control method thereof

Abstract

The present application relates to the technical field of transformer, in particular to a kind of multi-channel circulating cooling dry-type transformer and control method thereof, comprising: protective cabinet, and the support truss of installation in the protective cabinet, transformer body and water tank are arranged on the support truss;Circulating cooling component is arranged in the protective cabinet and is connected with the water tank, support plate is connected on the circulating cooling component, first cooling pipe is arranged on the support plate, and drain pipe is arranged on the first cooling pipe;Turbulent flow control mechanism is arranged on the support plate and is connected with the circulating cooling component;Follow-up adjusting mechanism is arranged on the first cooling pipe and is connected with the turbulent flow control mechanism, flow guide component connected with the follow-up adjusting mechanism is also arranged on the first cooling pipe, and air deflector is connected on the flow guide component, the air flow state in first cooling pipe is changed, to enhance the cooling effect of dry-type transformer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a multi-channel circulating cooling dry-type transformer and a control method thereof. BACKGROUND

[0002] Dry-type transformers are widely used in various indoor power distribution and special environments due to their high safety, environmental protection, low maintenance requirements, and strong adaptability.

[0003] Dry-type transformers usually rely on natural convection of air for heat dissipation and are suitable for small-capacity transformers. Since they do not use oil as a cooling medium, the risk of oil leakage, fire, and explosion is avoided, making them particularly suitable for places with high safety requirements, such as high-rise buildings, subways, and hospitals.

[0004] If the temperature of the dry-type transformer increases during use, the heat dissipation effect can be enhanced by forced air flow through the fan. The existing fan blows air into the cooling pipeline, and the air usually flows uniformly along the pipeline trajectory. The air in the pipeline is in a laminar flow state, and the layers of air flow separately with little mixing between layers, resulting in a reliance on thermal conduction for heat transfer and a weak convective effect, which reduces the heat exchange efficiency. Even if the fan power is increased, the heat dissipation effect achieved is still not high. SUMMARY

[0005] The present application aims to provide a multi-channel circulating cooling dry-type transformer and a control method thereof to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] A multi-channel circulating cooling dry-type transformer, comprising:

[0008] A protective box body and a support truss installed in the protective box body, the support truss being provided with a transformer body and a water tank;

[0009] Further comprising:

[0010] A circulating cooling assembly is provided in the protective box body and connected to the water tank. The circulating cooling assembly is connected to a support plate, and the support plate is provided with a first cooling pipe. The first cooling pipe is provided with a discharge pipe.

[0011] A turbulent flow regulation mechanism is provided on the support plate and connected to the circulating cooling assembly and the first cooling pipe, for adjusting the conduction and air supply state of the first cooling pipe.

[0012] A follow-up adjusting mechanism is arranged on the first cooling pipe and connected with the turbulent flow regulating mechanism, and a flow guide assembly connected with the follow-up adjusting mechanism is further arranged on the first cooling pipe, and a wind deflector is connected with the flow guide assembly, and the follow-up adjusting mechanism can adjust the distance between the wind deflector and the first cooling pipe through the flow guide assembly when the turbulent flow regulating mechanism moves.

[0013] As a further scheme of the present application, the circulating cooling assembly comprises a fan arranged in the protection box, a cooling box is arranged on the fan, the cooling box is fixedly connected with the supporting plate, a water pump is arranged on the top of the water tank, an absorption pipe and a circulating delivery pipe are connected with the water pump, the absorption pipe is connected with the water tank, and the circulating delivery pipe penetrates through the cooling box and is connected with the water tank.

[0014] As a further scheme of the present application, the turbulent flow regulating mechanism comprises a second cooling pipe arranged on the supporting plate, a plurality of turbulent pipes in equidistant distribution are connected with the first cooling pipe, and a guide assembly is arranged on the supporting plate.

[0015] As a further scheme of the present application, the guide assembly comprises a guide rail arranged on the supporting plate, a guide plate slidably connected with the cooling box is slidably arranged on the guide rail, a gas cylinder fixedly connected with the guide plate is arranged on the cooling box, and a gas feeding structure connected with the first cooling pipe and the second cooling pipe is arranged on the guide plate.

[0016] As a further scheme of the present application, the gas feeding structure comprises a through slot formed in the guide plate, a first guide hole and a second guide hole are formed in the through slot, the first guide hole is in conductive fit with the first cooling pipe, and the second guide hole is in conductive fit with the second cooling pipe.

[0017] As a further scheme of the present application, the follow-up adjusting mechanism comprises a clamping groove formed in the side wall of the supporting plate, a sliding block fixedly connected with the guide plate is slidably arranged in the clamping groove, a hinged rod is hinged to the sliding block, and an elastic assembly connected with the hinged rod is arranged on the first cooling pipe.

[0018] As a further scheme of the present application, the elastic assembly comprises a sliding sleeve slidably arranged on the first cooling pipe and hinged to the hinged rod, a receiving plate arranged in a symmetrical manner is arranged on the first cooling pipe, a spring is sleeved on the first cooling pipe, two ends of the spring are respectively abutted with the sliding sleeve and the receiving plate, and a driven structure connected with the receiving plate is arranged on the sliding sleeve.

[0019] As a further further scheme of the present application: the driven structure comprises a sliding groove symmetrically arranged on the receiving plate, a movable block is slidably arranged in the sliding groove, and a support sleeve symmetrically arranged on the sliding sleeve, a support rod fixedly connected with the movable block is slidably arranged in the support sleeve.

[0020] As a further further scheme of the present application: the driven structure comprises a sliding groove symmetrically arranged on the receiving plate, a movable block is slidably arranged in the sliding groove, and a support sleeve symmetrically arranged on the sliding sleeve, a support rod fixedly connected with the movable block is slidably arranged in the support sleeve.

[0021] A control method of a multi-channel circulating cooling dry-type transformer, comprising the following steps:

[0022] Step one: absorbing and cooling the external air through the circulating cooling assembly, and delivering the gas to the first cooling pipe for laminar flow through the turbulent flow regulation mechanism;

[0023] Step two: the turbulent flow regulation mechanism can move when the temperature in the protection box increases, and control the first cooling pipe and the circulating cooling assembly to be in a blocked state;

[0024] Step three: the circulating cooling assembly will deliver air to the first cooling pipe through the turbulent flow regulation mechanism, and adjust the air flow state in the first cooling pipe;

[0025] Step four: the follow-up adjustment mechanism is also moved by the turbulent flow regulation mechanism to control the air guide fin to insert into the first cooling pipe through the drainage assembly.

[0026] Compared with the prior art, the present application has the beneficial effects that: the present application can increase the contact area and heat exchange time of the cooling gas and the heat source by breaking the laminar flow of air, thereby increasing the cooling effect. Specifically, when the circulating cooling assembly is working, it can absorb and cool the external air, and deliver the air to the first cooling pipe to form laminar flow through the turbulent flow regulation mechanism for heat exchange and cooling treatment. If the temperature is still increasing, the first cooling pipe is blocked under the action of the turbulent flow regulation mechanism, the circulating cooling assembly will form turbulent flow in the first cooling pipe through the turbulent flow regulation mechanism, and the follow-up adjustment mechanism is controlled to move under the action of the turbulent flow regulation mechanism, so as to control the air guide fin to insert into the first cooling pipe through the drainage assembly. Under the synchronous action of the turbulent flow regulation mechanism and the air guide fin, the air in the first cooling pipe breaks the laminar flow and forms irregular turbulent flow, thereby further enhancing the cooling effect.

[0027] The air entering the first cooling pipe through the turbulence pipe will first impact the first cooling pipe to enhance heat exchange with the heat source, and gradually flow toward the discharge pipe under the action of air pressure, and be disturbed again under the impact of the air delivered by the next turbulence pipe, until the air is discharged to the outside of the protective box. Through the cooperation of multiple turbulence pipes, the air flow in the first cooling pipe always maintains a turbulent state to increase the cooling effect.

[0028] When the turbulence pipe delivers the air flow in the first cooling pipe through the air guide fins, the air in the first cooling pipe flows along the tracks of the air guide fins and collides with each other under the guidance of the two air guide fins, so that the flow direction of the air in the first cooling pipe is further disturbed. The air guide fins also have the effect of collecting air, so that the air pressure flowing through the air guide fins increases, and the air flow is disturbed while the flow rate is increased. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 Structure diagram of an embodiment of the multi-channel circulating cooling dry-type transformer.

[0030] Figure 2 Structure diagram of the interior of the protective box in an embodiment of the multi-channel circulating cooling dry-type transformer.

[0031] Figure 3 Structure diagram of the Figure 2 embodiment from another angle.

[0032] Figure 4 Structure diagram of the Figure 3 embodiment at A.

[0033] Figure 5 Connection relationship diagram of the circulating cooling assembly, part of the turbulence control mechanism, part of the follow-up adjusting mechanism, and the flow guide assembly in an embodiment of the multi-channel circulating cooling dry-type transformer.

[0034] Figure 6 Structure diagram of the follow-up adjusting mechanism, the flow guide assembly, and part of the turbulence control mechanism in an embodiment of the multi-channel circulating cooling dry-type transformer.

[0035] Figure 7 Structure diagram of the turbulence control mechanism and the cooling box in an embodiment of the multi-channel circulating cooling dry-type transformer.

[0036] Figure 8 Structure diagram of part of the follow-up adjusting mechanism, the flow guide assembly, and the first cooling pipe in an embodiment of the multi-channel circulating cooling dry-type transformer.

[0037] Figure 9An exploded structural schematic view of a partial follow-up adjusting mechanism in an embodiment of a multi-channel circulating cooling dry-type transformer.

[0038] Figure 10 An exploded structural schematic view of a flow guide assembly, a wind guide vane in an embodiment of a multi-channel circulating cooling dry-type transformer.

[0039] In the figure: 1, protective box; 101, ventilation slot; 2, support truss; 3, transformer body; 4, cooling box; 5, support plate; 501, guide rail; 6, water tank; 7, water pump; 8, absorption pipe; 9, circulating conveying pipe; 10, guide plate; 1001, through slot; 11, first guide hole; 12, second guide hole; 13, air cylinder; 14, fan; 15, first cooling pipe; 1501, discharge pipe; 16, second cooling pipe; 17, turbulence pipe; 18, clamping groove; 19, sliding block; 20, hinged rod; 21, sliding sleeve; 22, receiving plate; 2201, sliding groove; 23, movable block; 24, support sleeve; 25, support rod; 26, spring; 27, guide column; 28, guide sleeve; 29, wind guide vane; 30, sealing sleeve. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0042] Please refer to Figures 1-10 In the embodiments of the present application, a multi-channel circulating cooling dry-type transformer comprises:

[0043] A protective box 1 and a support truss 2 installed in the protective box 1, wherein the support truss 2 is provided with a transformer body 3 and a water tank 6;

[0044] Further comprising:

[0045] A circulating cooling assembly is arranged in the protective box 1 and connected with the water tank 6, a supporting plate 5 is connected with the circulating cooling assembly, a first cooling pipe 15 is arranged on the supporting plate 5, and a discharge pipe 1501 is arranged on the first cooling pipe 15;

[0046] A turbulence regulating mechanism is arranged on the supporting plate 5 and connected with the circulating cooling assembly and the first cooling pipe 15, and is used for adjusting the conduction and air supply state of the first cooling pipe 15;

[0047] A follow-up adjusting mechanism is arranged on the first cooling pipe 15 and connected with the turbulence regulating mechanism, and a flow guiding assembly connected with the follow-up adjusting mechanism is further arranged on the first cooling pipe 15, a wind deflector 29 is connected with the flow guiding assembly, and the follow-up adjusting mechanism can adjust the distance between the wind deflector 29 and the first cooling pipe 15 through the flow guiding assembly when the turbulence regulating mechanism moves.

[0048] Specifically, ventilation grooves 101 are arranged on both sides of the protective box 1, when the transformer body 3 needs to be cooled, air outside is sucked into the circulating cooling assembly through one of the ventilation grooves 101 under the action of the circulating cooling assembly, so as to cool the air, the cooled air is transported into the first cooling pipe 15 and exchanges heat with the heat generated by the transformer body 3, so as to cool the transformer body 3, and the air after heat exchange is discharged to the outside of the protective box 1 through the discharge pipe 1501 and the other ventilation groove 101, if the temperature in the protective box 1 continues to rise, because the air flow directly transported into the first cooling pipe 15 is in a laminar flow state, the heat conduction mainly depends on the heat conduction effect, and the convection effect is weak, so that the heat exchange efficiency is not high, therefore, under the action of the turbulence regulating mechanism, the first cooling pipe 15 and the circulating cooling assembly are in a blocking state, at this time, the cold air transported by the circulating cooling assembly enters the first cooling pipe 15 through the turbulence regulating mechanism, under the action of the turbulence regulating mechanism, the air in the first cooling pipe 15 forms a turbulent flow state of irregular motion, so as to break the boundary layer, enhance the heat exchange, and increase the heat exchange time with the heat source, further enhance the cooling effect, at the same time, the turbulence regulating mechanism also drives the follow-up adjusting mechanism to move, and controls the wind deflector 29 to insert into the first cooling pipe 15 through the flow guiding assembly, when the air flow in the turbulent state flows to the wind deflector 29, the air flow direction is changed again under the guidance of the wind deflector 29, and the flowing air collides with each other, so as to play the effect of disturbing the air flow, so as to further enhance the heat dissipation effect of the transformer body 3.

[0049] Please refer to Figures 1-3 , Figures 5-7The circulating cooling assembly comprises a fan 14 installed in the protective box 1, a cooling box 4 arranged on the fan 14, the cooling box 4 being fixedly connected with the supporting plate 5, a water pump 7 arranged on the top of a water tank 6, an absorbing pipe 8 and a circulating conveying pipe 9 connected with the water pump 7, the absorbing pipe 8 being connected with the water tank 6, and the circulating conveying pipe 9 penetrating through the cooling box 4 and being connected with the water tank 6.

[0050] In detail, the water tank 6 is filled with cooling liquid, the absorbing pipe 8 is connected with the bottom of the side of the water tank 6, and the circulating conveying pipe 9 is connected with the top of the side of the water tank 6. When the fan 14 works, air outside is blown into the cooling box 4 through one of the ventilation slots 101 under the action of the fan 14, at the same time, the water pump 7 works, and the cooling liquid at the bottom of the water tank 6 is conveyed into the circulating conveying pipe 9 through the absorbing pipe 8. The circulating conveying pipe 9 is arranged in the cooling box 4 in a corrugated shape, and the contact area of the cooling liquid with the air in the cooling box 4 is increased under the action of the circulating conveying pipe 9, so that the air is cooled more comprehensively. With the circulation of the cooling liquid, the cooling liquid in the circulating conveying pipe 9 will flow back to the water tank 6 and be located at the uppermost layer of the cooling liquid in the water tank 6, so that the cooling liquid is continuously used in circulation, thereby realizing the temperature reduction of the air.

[0051] Preferably, since the cooling liquid absorbed by the absorbing pipe 8 is located at the bottom of the water tank 6, the temperature of this part of the cooling liquid is in a lower state, and the cooling liquid flowing back to the water tank 6 in the circulating conveying pipe 9 is located at the top of the water tank 6, so that it has sufficient time to cool when being absorbed by the absorbing pipe 8 next time, thereby ensuring the normal use in the subsequent process.

[0052] Please refer to Figure 2 , Figure 3 , Figures 5-7 , the turbulence control mechanism comprises a second cooling pipe 16 installed on the supporting plate 5, a plurality of turbulence pipes 17 connected with the first cooling pipe 15 and arranged at equal intervals are connected with the second cooling pipe 16, and a guide assembly is arranged on the supporting plate 5. The guide assembly comprises a guide rail 501 installed on the supporting plate 5, a guide-through plate 10 slidably connected with the cooling box 4 is slidably installed on the guide rail 501, an air cylinder 13 fixedly connected with the cooling box 4 is arranged on the cooling box 4, an air feeding structure connected with the first cooling pipe 15 and the second cooling pipe 16 is arranged on the guide-through plate 10, the air feeding structure comprises a through slot 1001 opened on the guide-through plate 10, a first guide-through hole 11 and a second guide-through hole 12 are opened in the through slot 1001, the first guide-through hole 11 is in conductive fit with the first cooling pipe 15, and the second guide-through hole 12 is in conductive fit with the second cooling pipe 16.

[0053] It needs to be explained that when the temperature in the protection box 1 is low, the cooled air is directly delivered through the first cooling pipe 15, at this time, under the action of the air cylinder 13, the guide plate 10 is located at the end of the stroke away from the support truss 2, the first guide hole 11 is in the open state with the first cooling pipe 15, and the second guide hole 12 is in the dislocation state with the second cooling pipe 16, so that the second cooling pipe 16 is in the blocking state, and the cooled air in the cooling box 4 will be delivered into the first cooling pipe 15 through the through slot 1001 and the first guide hole 11 to cool the transformer body 3;

[0054] If the temperature of the transformer body 3 is still in the rising state, it means that the cooling effect of the transformer body 3 needs to be enhanced, at this time, the air cylinder 13 works and drives the guide plate 10 to move along the length direction of the guide rail 501, the guide plate 10 will also drive the first guide hole 11 and the second guide hole 12 to move, so that the first guide hole 11 is separated from the first cooling pipe 15, and the first cooling pipe 15 will be in the blocking state, when the second guide hole 12 moves to the position connected with the second cooling pipe 16, at this time, the air in the cooling box 4 will enter the second cooling pipe 16 through the second guide hole 12, one end of the second cooling pipe 16 is connected with the second guide hole 12, and the other end is in the blocking state, therefore, the air in the second cooling pipe 16 will be delivered into the first cooling pipe 15 through the plurality of turbulence pipes 17, under the action of the turbulence pipe 17, the air in the first cooling pipe 15 forms irregular turbulent flow state, so as to break the laminar boundary layer and enhance heat exchange, when the air in the first cooling pipe 15 flows to the exhaust pipe 1501, the air will be discharged through another ventilation slot 101, and the above steps are repeated, so as to cool the transformer body 3.

[0055] Preferably, if the air directly flows in the first cooling pipe 15, the air flow will be in the laminar state, and the air entering the first cooling pipe 15 through the turbulence pipe 17 will first impact in the first cooling pipe 15 to enhance the heat exchange with the heat source, under the action of air pressure, gradually flows towards the exhaust pipe 1501, and is disturbed again under the impact of the air delivered by the next turbulence pipe 17, until the air is discharged to the outside of the protection box 1, through the cooperation of the plurality of turbulence pipes 17, the air flow in the first cooling pipe 15 always maintains the turbulent flow state to increase the cooling effect.

[0056] Please refer to Figures 2-6 、 Figure 8 、 Figure 9The follow-up adjusting mechanism comprises a clamping groove 18 formed in the side wall of the support plate 5, a sliding block 19 fixedly connected with the conducting plate 10 and slidingly arranged in the clamping groove 18, a hinged rod 20 hinged to the sliding block 19, and an elastic assembly connected with the hinged rod 20 and arranged on the first cooling pipe 15. The elastic assembly comprises a sliding sleeve 21 slidingly arranged on the first cooling pipe 15 and hinged to the hinged rod 20, a receiving plate 22 symmetrically arranged on the first cooling pipe 15, a spring 26 sleeved on the first cooling pipe 15, two ends of the spring 26 abutting against the sliding sleeve 21 and the receiving plate 22 respectively, a driven structure connected with the receiving plate 22 and arranged on the sliding sleeve 21, and the driven structure comprises a sliding groove 2201 formed in the receiving plate 22 and symmetrically arranged, and a movable block 23 slidingly arranged in the sliding groove 2201. The sliding sleeve 21 is provided with symmetrically arranged support sleeves 24, and the support sleeves 24 are slidingly arranged with support rods 25 fixedly connected with the movable block 23.

[0057] Further, the support sleeves 24 and the support rods 25, the sliding sleeve 21 and the movable block 23 are combined in the same vertical plane to form a vertical triangle system. When the first cooling pipe 15 is in the conducting state with the first conducting hole 11, it indicates that the conducting plate 10 is located at the end of the stroke away from the support truss 2. Under the action of the conducting plate 10, the sliding block 19 is located at the end of the stroke away from the first cooling pipe 15, and the sliding block 19 will control the sliding sleeve 21 to be located at the end of the stroke towards the support plate 5 through the hinged rod 20. In the vertical triangle system, the distance between the sliding sleeve 21 and the receiving plate 22 is the largest, which means that one of the right angle sides in the vertical triangle system is the longest. Therefore, the hypotenuse formed by the support sleeves 24 and the support rods 25 is the longest, and the size of the mutual sleeve is the smallest. The movable block 23 is located at the end of the stroke away from the first cooling pipe 15 on the side of the sliding groove 2201, and under the action of the drainage assembly, the air deflector 29 is located outside the first cooling pipe 15 and does not affect the direction of air flow in the first cooling pipe 15;

[0058] If the temperature in the protection box 1 is in the state of rising, under the action of the cylinder 13, the control guide plate 10 is moved, so that the first guide hole 11 is separated from the first cooling pipe 15, and the second guide hole 12 is communicated with the second cooling pipe 16, so as to control the air in the first cooling pipe 15 to form a turbulent state through the turbulent pipe 17. At the same time, the guide plate 10 also drives the sliding block 19 to move along the length direction of the clamping groove 18, so as to control the sliding sleeve 21 to move away from the support plate 5 through the hinged rod 20, so as to compress the spring 26. The sliding sleeve 21 also drives the support sleeve 24 to move, so that the size of the support sleeve 24 and the support rod 25 is increased. Since in the perpendicular triangle system, the length of one of the right angle sides represented by the sliding sleeve 21 is reduced, under the action of the support sleeve 24 and the support rod 25, the movable block 23 also slides along the length direction of the sliding groove 2201, and moves towards the first cooling pipe 15, so as to drive the guide column 27 to move into the first cooling pipe 15 through the drainage assembly;

[0059] Preferably, when the guide plate 10 moves, the communication state between the first guide hole 11 and the first cooling pipe 15, and the second guide hole 12 and the second cooling pipe 16 can be adjusted to change the state of air flow, and the follow-up adjusting mechanism can be controlled synchronously to change the position of the air deflector 29, so as to simplify the driving source and achieve accurate and stable adjustment.

[0060] Please refer to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 10 , the drainage assembly comprises a guide column 27 installed on the movable block 23, a plurality of guide sleeves 28 are slidably installed on the guide column 27, the guide sleeves 28 are fixedly connected with the air deflector 29, and the first cooling pipe 15 is provided with a sealing sleeve 30, and the sealing sleeve 30 is slidably connected with the air deflector 29.

[0061] Furthermore, the air deflector 29 is symmetrically arranged on the first cooling pipe 15. When the first guide hole 11 and the first cooling pipe 15 are in communication, the movable block 23 is at the end of the stroke away from the first cooling pipe 15, so as to control the air deflector 29 to be outside the first cooling pipe 15 through the guide column 27 and the guide sleeve 28, and under the action of the air deflector 29 and the sealing sleeve 30, the side wall of the first cooling pipe 15 is in the state of being blocked.

[0062] When the first through hole 11 is separated from the first cooling pipe 15, and the second through hole 12 is connected with the second cooling pipe 16, under the action of the follow-up adjusting mechanism, the movable block 23 moves towards the first cooling pipe 15, thereby driving the guide column 27 to move, and the guide sleeve 28 will move towards the first cooling pipe 15 to control the movement of the air deflector 29, and the guide sleeve 28 will also move along the length direction of the guide column 27, when the second through hole 12 is connected with the second cooling pipe 16, the amount of the air deflector 29 inserted into the first cooling pipe 15 reaches the maximum, and since the air deflector 29 is arranged in an inclined manner relative to the inner wall of the first cooling pipe 15, when the air flow in the first cooling pipe 15 is transported by the turbulence pipe 17 and passes through the air deflector 29, under the guidance of the two air deflectors 29, the air flow in the first cooling pipe 15 flows along the track of the air deflector 29 and collides with each other, so as to further disturb the flow direction of the air in the first cooling pipe 15, and the air deflector 29 also has the effect of collecting air, so that the air pressure flowing through the air deflector 29 increases, and the air flow is disturbed and the flow rate is increased.

[0063] Preferably, since the air deflectors 29 and the turbulence pipes 17 are arranged in an adjacent staggered manner, when the air transported by the air deflector 29 collides with the turbulence pipe 17, the air in the first cooling pipe 15 will change direction again, so as to increase the contact time and contact area of the air and the heat source, thereby improving the heat dissipation efficiency.

[0064] A control method of a multi-channel circulating cooling dry-type transformer, which adopts the multi-channel circulating cooling dry-type transformer of any one of the above-mentioned embodiments, characterized in that the control method comprises the following steps:

[0065] Step one: absorbing and cooling the external air by the circulating cooling assembly, and transporting the gas into the first cooling pipe 15 to form a laminar flow by the turbulence control mechanism;

[0066] Step two: the turbulence control mechanism can move when the temperature in the protection box 1 increases, and control the first cooling pipe 15 and the circulating cooling assembly to be in a blocked state;

[0067] Step three: the circulating cooling assembly will transport the air into the first cooling pipe 15 by the turbulence control mechanism, and adjust the air flow state in the first cooling pipe 15;

[0068] Step four: the turbulence control mechanism also drives the follow-up adjusting mechanism to move, so as to control the air deflector 29 inserted into the first cooling pipe 15 by the flow guiding assembly.

[0069] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0070] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A dry-type transformer with multi-channel circulating cooling, comprising: The protective enclosure (1) and the supporting truss (2) installed inside the protective enclosure (1), on which the transformer body (3) and the water tank (6) are provided; Its characteristic is that it further includes: A circulating cooling assembly is installed inside the protective housing (1) and connected to the water tank (6). A support plate (5) is connected to the circulating cooling assembly. A first cooling pipe (15) is installed on the support plate (5). A discharge pipe (1501) is installed on the first cooling pipe (15). A turbulence control mechanism is provided on the support plate (5) and connected to the circulating cooling assembly and the first cooling pipe (15) for adjusting the conduction and air supply status of the first cooling pipe (15). A follow-up adjustment mechanism is provided on the first cooling pipe (15) and connected to the turbulence control mechanism. The first cooling pipe (15) is also provided with a flow guide assembly connected to the follow-up adjustment mechanism. A guide vane (29) is connected to the flow guide assembly. The follow-up adjustment mechanism can adjust the distance between the guide vane (29) and the first cooling pipe (15) through the flow guide assembly when the turbulence control mechanism moves. The circulating cooling assembly includes a fan (14) installed inside the protective housing (1), a cooling box (4) is provided on the fan (14), the cooling box (4) is fixedly connected to the support plate (5), a water pump (7) is provided on the top of the water tank (6), an absorption pipe (8) and a circulating conveying pipe (9) are connected to the water pump (7), the absorption pipe (8) is connected to the water tank (6), and the circulating conveying pipe (9) passes through the cooling box (4) and is connected to the water tank (6); The turbulence control mechanism includes a second cooling pipe (16) installed on the support plate (5), and a plurality of turbulence pipes (17) that are equally distributed and connected to the first cooling pipe (15) are connected to the second cooling pipe (16). A guide component is provided on the support plate (5). The guiding assembly includes a guide rail (501) mounted on the support plate (5), a guide plate (10) slidably mounted on the guide rail (501) and slidably connected to the cooling box (4), a cylinder (13) fixedly connected to the guide plate (10) on the cooling box (4), and an air supply structure connected to the first cooling pipe (15) and the second cooling pipe (16) on the guide plate (10).

2. The dry-type transformer with multi-channel circulating cooling according to claim 1, characterized in that, The air supply structure includes a through groove (1001) opened on the guide plate (10), and a first through hole (11) and a second through hole (12) are opened in the through groove (1001). The first through hole (11) is connected to the first cooling pipe (15), and the second through hole (12) is connected to the second cooling pipe (16).

3. A dry-type transformer with multi-channel circulating cooling according to claim 1, characterized in that, The follow-up adjustment mechanism includes a slot (18) opened on the side wall of the support plate (5), a sliding block (19) fixedly connected to the guide plate (10) is slidably installed in the slot (18), a hinge rod (20) is hinged on the sliding block (19), and an elastic component connected to the hinge rod (20) is provided on the first cooling pipe (15).

4. A dry-type transformer with multi-channel circulating cooling according to claim 3, characterized in that, The elastic component includes a sliding sleeve (21) that is slidably mounted on the first cooling pipe (15) and hinged to the hinge rod (20). The first cooling pipe (15) is provided with symmetrically arranged support plates (22). A spring (26) is sleeved on the first cooling pipe (15). The two ends of the spring (26) abut against the sliding sleeve (21) and the support plate (22) respectively. The sliding sleeve (21) is provided with a driven structure connected to the support plate (22).

5. A dry-type transformer with multi-channel circulating cooling according to claim 4, characterized in that, The driven structure includes a symmetrically arranged groove (2201) on the receiving plate (22), a movable block (23) is slidably installed in the groove (2201), a symmetrically arranged support sleeve (24) is provided on the sliding sleeve (21), and a support rod (25) fixedly connected to the movable block (23) is slidably installed in the support sleeve (24).

6. A dry-type transformer with multi-channel circulating cooling according to claim 5, characterized in that, The flow-guiding assembly includes a guide post (27) installed on the movable block (23). Multiple guide sleeves (28) are slidably installed on the guide post (27) and are equidistantly distributed. The guide sleeves (28) are fixedly connected to the air guide vane (29). A sealing sleeve (30) is provided on the outer circumference of the first cooling pipe (15). The sealing sleeve (30) is slidably connected to the air guide vane (29).

7. A control method for a multi-channel circulating cooling dry-type transformer, employing the multi-channel circulating cooling dry-type transformer as described in any one of claims 1-6, characterized in that, Includes the following steps: Step 1: The outside air is absorbed and cooled by the circulating cooling component, and the gas is transported to the first cooling pipe (15) to form laminar flow by the turbulence control mechanism; Step 2: The turbulence control mechanism can move when the temperature inside the protective box (1) increases, and control the first cooling pipe (15) and the circulating cooling components to be in a blocked state; Step 3: The circulating cooling component will deliver air to the first cooling pipe (15) through the turbulence control mechanism and adjust the airflow state in the first cooling pipe (15); Step 4: The turbulence control mechanism will also drive the follow-up adjustment mechanism to move, so as to control the air guide vane (29) to be inserted into the first cooling pipe (15) through the flow diversion component.

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