Heat dissipation and dehumidification box-type transformer substation

Abstract

The utility model relates to the technical field of power equipment, in particular to a heat dissipation and dehumidification box transformer substation, which comprises a box transformer substation body, a bottom frame is arranged at the bottom of the box transformer substation, the bottom frame comprises a first bottom plate in contact with an installation interface, and a second bottom plate is installed on the upper portion of the first bottom plate through a plurality of supporting assemblies. A plurality of first ventilation parts are arranged along the periphery of a supporting space formed among the first bottom plate, the supporting assembly and the second bottom plate, and a net plate structure is arranged at the ventilation position of each first ventilation part. A plurality of ventilation structures are additionally arranged to dissipate heat to the maximum extent, condensation is prevented from being formed, and the condensation can be led out of the box in time even if the field environment is very severe.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, specifically to a heat dissipation and dehumidification box-type transformer. Background Technology

[0002] Prefabricated substations are commonly used in urban power supply and power distribution systems for distributing and terminal power. However, because they are placed outdoors and contain many live components, moisture ingress can affect normal operation and even cause internal arcing, burning out equipment. Furthermore, prolonged use generates significant heat, leading to electrical equipment malfunctions. Therefore, the interior of the substation needs to maintain a suitable temperature and dry environment for extended periods. Existing technologies address the heat dissipation and dehumidification problem by modularizing internal switchgear components and extensively installing dehumidifiers, which reduces these issues to some extent. However, this does not fundamentally solve the problem, and such equipment is often too expensive, making market adoption difficult, and it also introduces new problems such as increased potential failure points. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of this utility model is to provide a heat dissipation and dehumidification transformer box.

[0004] By maximizing heat dissipation and preventing condensation without changing the current size of the transformer, moisture can be promptly drawn outside the transformer even in very harsh environments.

[0005] A heat dissipation and dehumidification transformer substation, comprising:

[0006] A transformer substation body, wherein the bottom of the transformer substation is provided with a bottom frame, the bottom frame includes a first bottom plate that contacts the installation interface, a second bottom plate is installed on the upper part of the first bottom plate by a plurality of support components, and a plurality of first ventilation sections are provided along the outer periphery of the support space formed between the first bottom plate, the support components and the second bottom plate, and the ventilation openings of the first ventilation sections are provided with a mesh plate structure;

[0007] Several boxes are provided in the space at the upper edge of the side frame and the second base plate of the transformer. A second ventilation section is provided at the lower part of the box door. A third ventilation section 152 is provided at the upper part of the box door on the front and back of the box body. The third ventilation section has a fan installed in the box door, and a mesh plate structure is provided outside the fan.

[0008] A sleeve is provided at the cable entry and exit position on the second base plate, and a sealing plug is provided inside the sleeve.

[0009] The high-voltage cabinet inside the transformer substation is equipped with a pressure relief hole, and a waterproof membrane structure is installed at the location of the pressure relief hole.

[0010] The roof of the transformer substation is a sloping roof structure with a first ventilation opening. An inclined cover structure is provided on the upper part of the roof of the transformer substation, forming an inclined air duct between the roof and the cover structure. The air duct connects the first ventilation opening to the outside of the transformer substation, so that condensation formed on the wall can be discharged in time to the second ventilation opening of the cover structure through the air duct.

[0011] In a preferred embodiment of this utility model, the support component is a support channel steel, which is arranged in a uniformly stressed manner.

[0012] In a preferred embodiment of this utility model, the width of the first ventilation section is greater than the width of the supporting channel steel.

[0013] In a preferred embodiment of the present invention, an air circulation system is provided at the second vent of the cover structure, the air circulation system including at least one exhaust fan and at least one supply fan.

[0014] In a preferred embodiment of the present invention, a mesh structure is provided at the second ventilation opening of the cover plate structure.

[0015] In a preferred embodiment of this invention, the inner diameter of the sealing plug is adjusted according to the cable diameter. The beneficial effects of this invention are:

[0016] By adding multiple ventilation structures without changing the existing substation structure design, heat dissipation can be maximized and condensation can be prevented. Even in very harsh environments, condensation can be promptly directed outside the substation. Attached Figure Description

[0017] Figure 1 This is the main structural view of this utility model;

[0018] Figure 2 This utility model has a left-side view. Figure 1 ;

[0019] Figure 3 This is a top view of the bottom frame of this utility model;

[0020] Figure 4 yes Figure 3 Partial BB section view;

[0021] Figure 5 This utility model has a left-side view. Figure 2 ;

[0022] Figure 6 yes Figure 5 AA sectional view.

[0023] exist Figures 1 to 6In the middle: 1. Transformer body, 100. Base frame, 110. Base plate, 120. Support channel steel, 130. Second base plate, 132. Pressure relief hole, 140. First ventilation section, 141. Mesh structure; 150. Box door, 151. Second ventilation section, 152. Third ventilation section, 153. Fan, 131. Cable entry and exit position, 160. Sleeve, 161. Sealing plug, 170. Waterproof membrane structure, 180. Cover structure, 181. Second ventilation opening, 190. Air duct, 20. Side frame, 210. Exhaust fan, 220. Air supply fan, 30. Box top hanging plate, 31. First ventilation opening. Detailed Implementation

[0024] The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0025] like Figure 1-6 The heat dissipation and dehumidification transformer shown includes the transformer body 1, and a bottom frame 100 is provided at the bottom of the transformer.

[0026] The base frame 100 is assembled and welded from No. 18 channel steel, including a first base plate 110 that contacts the installation interface, and a second base plate 130 is installed on the top of the first base plate 110 by several supporting channel steels 120. The three parts are welded together and painted.

[0027] The first base plate 110 serves as the load-bearing layer to ensure lifting strength. The supporting channel steel 120 adopts a uniformly stressed arrangement to support the upper structure.

[0028] A plurality of first ventilation sections 140 are provided along the outer periphery of the support space formed between the first base plate 110, the support channel steel 120 and the second base plate 130. The ventilation openings of the first ventilation sections 140 are provided with mesh structure 141. The width of the first ventilation section 140 is greater than the width of the support channel steel 120.

[0029] With its protective mesh structure 141, compared to the conventional single-channel steel base frame with open round holes for ventilation, the ventilation area is greatly increased and air convection is achieved, allowing water vapor in the cable well to dissipate quickly.

[0030] Key points combined Figure 1 , 2 Several boxes 150 are provided in the space at the upper edge of the side frame 20 and the second base plate 130 of the transformer body 1. A second ventilation section 151 is provided at the lower part of the several boxes 150. The second ventilation section 151 may also be provided with a mesh plate or adopt a structure of several ventilation slots.

[0031] A third ventilation section 152 is provided on the upper part of the left door 150 on the front of the main body 1, and a third ventilation section 152 is provided on the upper part of the right door 150 on the back of the main body 1. The third ventilation section has a fan 153 installed in the door 150 with an opening, and a mesh plate structure is provided outside the fan.

[0032] Key points combined Figure 3 , 4 A sleeve 160 is provided at the cable entry / exit position 131 on the second base plate 130. A sealing plug 161 is provided inside the sleeve 160. When installing cables on site, the inner diameter of the sealing plug 161 can be adjusted according to the cable diameter and has a certain amount of compression. After installation, the cable entry / exit position 131 and the cable can be seamlessly connected. The high-voltage cabinet in the transformer substation 1 is provided with a pressure relief hole 132. A waterproof membrane structure 170 is installed at the position of the pressure relief hole 132, which can also have the functions of moisture protection and explosion protection. These two improvements, compared with the conventional method of digging holes in the base plate to directly access the cable well, can more thoroughly isolate the moisture in the cable well of the transformer substation.

[0033] The roof of the transformer substation 1 is designed with an sloping roof structure at the top plate 30 and is equipped with a first ventilation opening 31. An inclined cover structure 180 is provided on the upper part of the roof of the transformer substation 1, and an inclined air duct 190 is formed between the roof of the transformer substation 1 and the cover structure 180 (the arrow in the figure indicates the direction of the wind).

[0034] The air duct 190 connects the first ventilation opening 31 to the environment outside the box, allowing condensation to be discharged promptly through the inclined direction within the air duct 190 to the second ventilation opening 181 of the cover structure 180. For both dust prevention and ventilation, a mesh structure is installed at the second ventilation opening 181 of the cover structure 180.

[0035] To further increase ventilation efficiency, an air circulation system is provided at the second vent 181 of the cover structure 180. The air circulation system includes an exhaust fan 210 and an air supply fan 220.

[0036] The air inside transformer 1 is exchanged and circulated with the outside ambient air through exhaust fan 210 and air supply fan 220 via air duct 190 to achieve temperature and humidity balance.

[0037] Compared to conventional flat ceilings without circulation channels, this method is more efficient and reasonable, minimizing the possibility of condensation dripping from the transformer wall onto the switchgear due to temperature differences between the inside and outside.

Claims

1. A heat-dissipation dehumidification cabinet transformer, comprising a cabinet transformer body, a bottom frame is arranged at the bottom of the cabinet transformer, the bottom frame comprises a first bottom plate in contact with a mounting interface, and a second bottom plate is mounted on the upper portion of the first bottom plate through a plurality of support assemblies, characterized in that, A plurality of first ventilation sections are provided along the outer periphery of the support space formed between the first base plate, the support component, and the second base plate, and the ventilation openings of the first ventilation sections are provided with mesh plate structures.

2. The heat dissipation and dehumidification transformer according to claim 1, characterized in that, Several boxes are provided in the space at the upper edge of the side frame and the second base plate of the transformer. A second ventilation section is provided at the lower part of the box door. A third ventilation section is provided at the upper part of the box door on the front and back of the box body. The third ventilation section has a fan installed in the box door with an opening. A mesh plate structure is provided outside the fan.

3. The heat dissipation and dehumidification transformer according to claim 2, characterized in that, A sleeve is provided at the cable entry and exit position on the second base plate, and a sealing plug is provided inside the sleeve.

4. The heat dissipation and dehumidification transformer according to claim 3, characterized in that, A pressure relief hole is provided inside the high-voltage cabinet of the transformer substation, and a waterproof membrane structure is installed at the location of the pressure relief hole.

5. A heat dissipation and dehumidification transformer according to claim 3, characterized in that, The roof of the transformer substation is a sloping roof structure with a first ventilation opening. An inclined cover structure is provided on the upper part of the roof of the transformer substation, forming an inclined air duct between the roof and the cover structure. The air duct connects the first ventilation opening to the outside of the transformer substation, so that condensation formed on the wall can be discharged in time to the second ventilation opening of the cover structure through the air duct.

6. The heat dissipation and dehumidification transformer according to claim 1, characterized in that, The support assembly is a support channel steel, and it adopts a uniform force distribution arrangement.

7. The heat dissipation and dehumidification transformer according to claim 1, characterized in that, The width of the first ventilation section is greater than the width of the supporting channel steel.

8. A heat dissipation and dehumidification transformer according to claim 5, characterized in that, An air circulation system is provided at the second vent of the cover structure, and the air circulation system includes at least one exhaust fan and at least one supply fan.

9. A heat dissipation and dehumidification transformer according to claim 5, characterized in that, A mesh structure is provided at the second ventilation opening of the cover plate structure.

10. A heat dissipation and dehumidification transformer according to claim 3, characterized in that, The inner diameter of the sealing plug is adjusted according to the cable diameter.

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