Air-air cooling structure with low gravity center and high heat exchange efficiency

Abstract

The utility model relates to the technical field of transformers, in particular to an air-air cooling structure with a low gravity center and high heat exchange efficiency. Comprising an installation base, a core body, an outer circulation air inlet assembly, an outer circulation air outlet assembly, an inner circulation air outlet box, an inner circulation air outlet pipe and two impeller sets. Compared with an original scheme adopting a double-core structure, the technical scheme adopts a single-core structure, internal and external circulating air can be subjected to sufficient heat exchange, the maximum and uniform air inlet temperature difference is kept, the maximum heat exchange capacity of the core can be fully exerted, the uniform internal circulating air outlet temperature can be ensured, the transformer can obtain uniform cold air, and the service life of the transformer is prolonged. Meanwhile, the overall gravity center is closer to the center when the height of the core body is reduced, and vibration is easier to control.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field especially relates to a low gravity center high heat exchange efficiency's air air cooling structure. BACKGROUND

[0002] At present, partial transformer manufacturers, due to considering installation space, maintenance convenience and the like, place the transformer backpack air air cooling inner circulation fan in the uppermost part of equipment, and the gravity center is high, and the whole steel structure is fixed by bolt, and the stability is not high, and the product vibration control is not good, and the situation that vibration is good after leaving factory, after long-distance transportation, reaches the transformer manufacturer and vibration is bad, finally after long time operation, motor is damaged, and the transformer cannot operate at high temperature, resulting in that the whole unit suspends power generation operation.

[0003] In summary, the transformer backpack air air cooling inner circulation fan in the prior art has the problems of long cantilever of the outer circulation fan, difficult control of fan vibration, high height of the bottom steel structure to be supported, high overall weight, poor overall rigidity, low vibration resistance, and inconsistent cold air temperature of the core bodies on the two sides of the inner circulation, which causes local high temperature alarm of the internal coil of the transformer. UTILITY MODEL CONTENTS

[0004] The utility model discloses a low gravity center high heat exchange efficiency's air air cooling structure, solve the transformer backpack air air cooling inner circulation fan in prior art have the problems of long cantilever of the outer circulation fan, difficult control of fan vibration, high height of the bottom steel structure to be supported, high overall weight, poor overall rigidity, low vibration resistance, and inconsistent cold air temperature of the core bodies on the two sides of the inner circulation, which causes local high temperature alarm of the internal coil of the transformer.

[0005] To achieve the above object, the utility model provides a low gravity center high heat exchange efficiency's air air cooling structure, low gravity center high heat exchange efficiency's air air cooling structure includes installation base, core body, outer circulation air inlet component, outer circulation air outlet component, inner circulation air outlet box, inner circulation air outlet pipe and two impeller groups, the upper surface of installation base is installed core body, the both sides of core body are installed outer circulation air inlet component and outer circulation air outlet component respectively, the top of core body is installed inner circulation air outlet box, the top of inner circulation air outlet box is installed inner circulation air outlet pipe, the input of outer circulation air inlet component and the output of outer circulation air outlet component are in same plane, the output of inner circulation air outlet pipe and the input of outer circulation air inlet component are opposite, the both sides of inner circulation air outlet box are all provided with impeller group, and two impeller groups are staggered.

[0006] The outer circulation air inlet assembly comprises a first outer circulation air pipe and an outer circulation air inlet pipe, the first outer circulation air pipe is installed on the upper surface of the mounting base and located at one side of the core body, and the top end of the first outer circulation air pipe is provided with the outer circulation air inlet pipe.

[0007] The outer circulation air outlet assembly comprises a second outer circulation air pipe, an outer circulation air outlet pipe and an outer circulation air fan, the second outer circulation air pipe is installed on the upper surface of the mounting base and located at the side of the core body away from the first outer circulation air pipe, the upper surface of the second outer circulation air pipe is provided with the outer circulation air fan, and the output end of the outer circulation air fan is provided with the outer circulation air outlet pipe.

[0008] Each impeller group comprises a motor mounting seat, a motor body and an impeller body, the motor mounting seat is installed at the top end of the corresponding first outer circulation air pipe and second outer circulation air pipe, the motor body is arranged above the motor mounting seat, the output end of each motor body is provided with the impeller body, and the impeller body is located in the inside of the inner circulation air outlet box.

[0009] Each impeller group further comprises a motor mounting plate, the motor mounting plate is arranged at the two sides of the inner circulation air outlet box, and each motor body is connected with the corresponding motor mounting plate.

[0010] The low-gravity high heat exchange efficiency air-air cooling structure comprises a core body, an inner circulation air outlet box, an outer circulation air inlet assembly, an outer circulation air outlet assembly and a plurality of impeller groups, the core body is installed on the mounting base, the inner circulation air outlet box is installed on the top end of the core body, the outer circulation air inlet assembly is installed on the upper surface of the mounting base and located at one side of the core body, the outer circulation air outlet assembly is installed on the upper surface of the mounting base and located at the side of the core body away from the outer circulation air inlet assembly, and the plurality of impeller groups are arranged in the inner circulation air outlet box. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0012] Fig. 1 is a structural schematic diagram of the air-air cooling structure with low gravity center and high heat exchange efficiency provided by the present application.

[0013] Fig. 2 is a structural schematic diagram of the air-air cooling structure with low gravity center and high heat exchange efficiency provided by the present application from another perspective.

[0014] Fig. 3 is a structural schematic diagram of the impeller set provided by the present application.

[0015] 101-mounting base, 102-core body, 103-internal circulation air outlet box, 104-internal circulation air outlet pipe, 105-first external circulation air pipe, 106-external circulation air inlet pipe, 107-second external circulation air pipe, 108-external circulation air outlet guide pipe, 109-external circulation air fan, 110-motor mounting seat, 111-motor body, 112-impeller body, 113-motor mounting plate. DETAILED DESCRIPTION

[0016] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0017] Please refer to Figs. 1 to 3The utility model provides a kind of low gravity center high heat exchange efficiency's air-air cooling structure, low gravity center high heat exchange efficiency's air-air cooling structure includes installation baseplate 101, core 102, outer circulation air inlet component, outer circulation air outlet component, inner circulation air outlet box 103, inner circulation air outlet pipe 104 and two impeller groups, the upper surface of the installation baseplate 101 is equipped with the core 102, the both sides of the core 102 are equipped with the outer circulation air inlet component and the outer circulation air outlet component respectively, the top of the core 102 is equipped with the inner circulation air outlet box 103, the top of the inner circulation air outlet box 103 is equipped with the inner circulation air outlet pipe 104, the input end of the outer circulation air inlet component and the output end of the outer circulation air outlet component are in the same plane, the output end of the inner circulation air outlet pipe 104 is opposite the input end of the outer circulation air inlet component, the both sides of the inner circulation air outlet box 103 are equipped with the impeller group, and the two impeller groups are staggered.

[0018] In the embodiment, the external cold air flows through the core 102 under the cooperation of the outer circulation air inlet component and the outer circulation air outlet component, and the impeller group works, so that the internal hot air and the external cold air are temperature-intersected in the core 102, the cooling of the inner circulation air path is realized, the inner circulation air is blown out from the inner circulation air outlet pipe 104 after cooling, and the transformer cooling is carried out, the external circulation air is blown out from the outer circulation air outlet component after being heated, and enters the external atmosphere. By using the technical scheme, the overall support structure is assembled in three sections, each section is integrally welded, the number of movable parts is reduced, the rigidity is improved, the anti-vibration performance is enhanced, and compared with the original scheme using the double-core 102 structure, the single-core 102 structure is used in the technical scheme, the internal and external circulation air can be fully heat-exchanged, the maximum and uniform air inlet temperature difference can be maintained, the maximum heat exchange capacity of the core 102 can be fully utilized, the uniform inner circulation air outlet temperature can be ensured, the uniform cold air for the transformer can be ensured, and the overall gravity center is more close to the center, so that the vibration is more easily controlled.

[0019] Further, the outer circulation air inlet component includes a first outer circulation air pipe 105 and an outer circulation air inlet pipe 106, the first outer circulation air pipe 105 is installed on the upper surface of the installation baseplate 101 and located on one side of the core 102, and the top end of the first outer circulation air pipe 105 is installed with the outer circulation air inlet pipe 106.

[0020] In the embodiment, the external cold air is transported to the inside of the core 102 through the outer circulation air inlet pipe 106.

[0021] Further, the outer circulation air outlet assembly comprises a second outer circulation air pipe 107, an outer circulation air outlet duct 108 and an outer circulation air fan 109, the second outer circulation air pipe 107 is installed on the upper surface of the mounting base 101 and is located on the side of the core 102 away from the first outer circulation air pipe 105, and the upper surface of the second outer circulation air pipe 107 is provided with the outer circulation air fan 109, and the output end of the outer circulation air fan 109 is provided with the outer circulation air outlet duct 108.

[0022] In the embodiment, the outer circulation air fan 109 is started, so that the outer circulation cold air enters the inside of the core 102 through the outer circulation air inlet pipe 106, exchanges heat with the hot air introduced by the inner circulation air outlet box 103, and is blown out through the outer circulation air outlet rail after being heated, and enters the outside atmosphere.

[0023] Further, each of the impeller groups comprises a motor mounting seat 110, a motor body 111 and an impeller body 112, the motor mounting seat 110 is installed at the top end of the corresponding first outer circulation air pipe 105 and second outer circulation air pipe 107, the motor body 111 is arranged above the motor mounting seat 110, the output end of each motor body 111 is provided with the impeller body 112, and the impeller body 112 is located in the inside of the inner circulation air outlet box 103.

[0024] In the embodiment, the installation of the motor body 111 is completed through the arrangement of the motor mounting seat 110, the motor body 111 is started, the impeller body 112 is driven to rotate, the gas is driven in the inside of the inner circulation air outlet box 103, and since the position of the impeller body 112 is lower than the inner circulation air outlet pipe 104, when the impeller body 112 is damaged, the blade will not cause damage to the transformer.

[0025] Further, each of the impeller groups further comprises a motor mounting plate 113, the motor mounting plate 113 is arranged on the two sides of the inner circulation air outlet box 103, and each motor body 111 is connected with the corresponding motor mounting plate 113.

[0026] In the embodiment, the installation structure of the motor body 111 is more firm through the arrangement of the motor mounting plate 113.

[0027] The above only discloses a preferred embodiment of the utility model, and of course cannot limit the scope of the utility model, and the person skilled in the art can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. An air-to-air cooling structure with low gravity center and high heat exchange efficiency, characterized in that it comprises a mounting base, a core, an outer circulation air inlet assembly, an outer circulation air outlet assembly, an inner circulation air outlet box, an inner circulation air outlet pipe and two impeller groups, the core is mounted on the upper surface of the mounting base, the outer circulation air inlet assembly and the outer circulation air outlet assembly are respectively mounted on the two sides of the core, the inner circulation air outlet box is mounted on the top end of the core, the inner circulation air outlet pipe is mounted on the top end of the inner circulation air outlet box, the input end of the outer circulation air inlet assembly and the output end of the outer circulation air outlet assembly are in the same plane, the output end of the inner circulation air outlet pipe is opposite to the input end of the outer circulation air inlet assembly, the two sides of the inner circulation air outlet box are provided with the impeller groups, and the two impeller groups are staggered.

2. The air-to-air cooling structure with low gravity center and high heat exchange efficiency according to claim 1, characterized in that the outer circulation air inlet assembly comprises a first outer circulation air pipe and an outer circulation air inlet pipe, the first outer circulation air pipe is mounted on the upper surface of the mounting base and located on one side of the core, and the top end of the first outer circulation air pipe is provided with the outer circulation air inlet pipe.

3. The air-to-air cooling structure with low gravity center and high heat exchange efficiency according to claim 2, characterized in that the outer circulation air outlet assembly comprises a second outer circulation air pipe, an outer circulation air outlet guide pipe and an outer circulation air fan, the second outer circulation air pipe is mounted on the upper surface of the mounting base and located on the side of the core away from the first outer circulation air pipe, the upper surface of the second outer circulation air pipe is provided with the outer circulation air fan, and the output end of the outer circulation air fan is provided with the outer circulation air outlet guide pipe.

4. The air-to-air cooling structure with low gravity center and high heat exchange efficiency according to claim 3, characterized in that each impeller group comprises a motor mounting seat, a motor body and an impeller body, the motor mounting seat is mounted on the top end of the corresponding first outer circulation air pipe and second outer circulation air pipe, the motor body is arranged above the motor mounting seat, the output end of each motor body is provided with the impeller body, and the impeller body is located inside the inner circulation air outlet box.

5. The air-to-air cooling structure with low gravity center and high heat exchange efficiency according to claim 4, characterized in that each impeller group further comprises a motor mounting plate, the two sides of the inner circulation air outlet box are provided with the motor mounting plate, and each motor body is connected with the corresponding motor mounting plate. ​ ​ ​ ​ ​

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