Box transformer top cover with anti-condensation and ventilation and heat dissipation structure and box-type substation

Abstract

The utility model belongs to box -type substation distribution equipment technical field discloses a box -type substation with anti -condensation and ventilating and heat dissipating structure's box -type transformer top cover and box -type substation. The box -type substation is fixedly connected together by box -type transformer top cover, box body framework, box body door plant, box -type transformer base; The box -type transformer door plant is fixed with lower box -type transformer ventilation window and upper box -type transformer ventilation window; The box -type transformer top cover is fixed together by herringbone welding top cover, heat dissipation ridge and lifting ring through the form of welding. The present application designs reasonable airflow organization according to fluid mechanics problem, adopts double -deck " herringbone " top cover design and double -deck ridge type heat dissipation structure, has difference with traditional double -deck top design, simultaneously, the front and back, left and right four -corner reasonable design ventilation hole, double -deck ridge on the box -type transformer top cover is reasonable design ventilation hole.

Description

Technical Field

[0001] This utility model belongs to the technical field of box-type substation power distribution equipment, and particularly relates to a box-type substation top cover with anti-condensation and ventilation heat dissipation structure and a box-type substation. Background Technology

[0002] A prefabricated substation, also known as a box-type substation, is a complete power distribution unit that integrates high-voltage switchgear, distribution transformers, low-voltage switchgear, power metering, and reactive power compensation devices into a single enclosure according to a specific wiring scheme. It is suitable for three-phase AC systems with a rated voltage of 12kV and a rated frequency of 50Hz, and for use in residential areas, large construction sites, high-rise buildings, industrial and mining enterprises, and temporary facilities with a capacity of 1000kVA and below.

[0003] As a core piece of equipment in the power system, prefabricated substations (panel substations) are exposed to the outdoor environment for extended periods, facing two key challenges:

[0004] 1) Heat dissipation requirements: The operation of components such as power distribution transformers and switches generates high temperatures and ambient temperatures (up to 80°C or higher).

[0005] Poor heat dissipation and ventilation can cause excessively high internal temperatures, which may lead to many safety hazards, such as aging, cracking or embrittlement of transformer windings or insulation materials. This will reduce their mechanical properties, electrical properties and safety, thereby reducing the service life of the transformer and having an adverse effect.

[0006] Poor heat dissipation and ventilation can cause excessively high internal temperatures, which may also lead to disc discharge or partial discharge in the transformer, insulation damage, short circuit electrical faults, circuit malfunction, and ultimately risks such as explosion and fire.

[0007] Poor heat dissipation and ventilation can cause excessively high internal temperatures, leading to significant fluctuations in output voltage and current. This instability in the voltage, current, and frequency of the entire power distribution system can affect the normal operation of the equipment.

[0008] 2) Condensation risk: Temperature and humidity differences between the inside and outside of the box can cause condensation on the inner wall of the top cover (especially during the rainy season or when there are large temperature differences between day and night).

[0009] The hazards of condensation: It affects primary equipment such as cable terminals and non-enclosed busbars. Condensation reduces the insulation performance of the equipment, creating conditions for flashover or creepage, which can directly lead to equipment failure or induce the premature development of inherent defects in the equipment into operational failure.

[0010] Condensation or dew that falls from specified points on microswitches and terminals can affect power distribution automation, communication terminals and related secondary systems, causing short circuit (grounding) faults in the circuit, which in turn can lead to "false alarms" or "false actions".

[0011] Condensation can affect the equipment housing or auxiliary components, causing corrosion of the housing, copper and aluminum, and metal parts of the operating mechanism and auxiliary switches. This can reduce the service life of the equipment and cause the operating mechanism to rust, jam, or become stuck and unable to operate.

[0012] Based on the above analysis, the problems and shortcomings of the existing technology are as follows:

[0013] Ventilation and heat dissipation design: The heat dissipation holes are designed to be straight through, without dustproof and waterproof structure, and are easy to clog; they rely on forced ventilation (axial flow fan or fan), which has high energy consumption and high failure rate; hot air accumulates at the top cover, forming a "heat island effect"; low heat dissipation efficiency causes equipment to overheat and reduce capacity, and shorten lifespan.

[0014] Anti-condensation design: The top cover is a single-layer metal plate without an insulation layer; when the inner wall temperature is lower than the dew point temperature, condensation will form directly. Existing heater solutions have high energy consumption and local overheating, which may cause condensation to drip and cause short circuits and grounding faults in the equipment.

[0015] Ventilation openings conflict with waterproofing / dustproofing requirements, forcing the sacrifice of heat dissipation or sealing performance, resulting in high maintenance costs and reduced reliability. Utility Model Content

[0016] To overcome the problems existing in related technologies, the present invention discloses a box-type substation with a condensation-proof and ventilated heat dissipation structure.

[0017] The technical solution is as follows: a box-type substation with an anti-condensation and ventilation structure, wherein the box-type substation is fixedly connected together by the box-type substation top cover, the box frame, the box door panel, and the box-type substation base.

[0018] The transformer substation door panel is fixed with a lower transformer substation ventilation window and an upper transformer substation ventilation window;

[0019] The transformer substation top cover consists of a herringbone welded top cover, a heat dissipation ridge, and hanging rings, which are fixed together by welding.

[0020] Furthermore, the herringbone-shaped welded top cover is provided with a rear outer top cover;

[0021] The rear outer top cover has a first notch at one end and the front outer top cover has a second notch at one end. The rear outer top cover and the front outer top cover are welded together by the first and second notches that match the size.

[0022] The rear ventilation mesh plate is spot-welded to the rear outer top cover ventilation hole on the other end of the rear outer top cover; the front ventilation mesh plate is spot-welded to the front outer top cover ventilation hole on the other end of the front outer top cover.

[0023] The upper cover support beam is spot-welded to the inner surfaces of the rear outer cover and the front outer cover at certain dimensional intervals.

[0024] Both the rear inner top cover and the front inner top cover are fixedly connected to the upper top cover support beam; the herringbone support ribs are fixed together with the rear inner top cover and the front inner top cover by welding.

[0025] The right ventilation mesh plate is spot-welded to the right top cover side block ventilation hole on the right top cover side block;

[0026] The left ventilation mesh plate is spot-welded to the ventilation hole of the left top cover side cover on the left top cover side cover.

[0027] Furthermore, the herringbone-shaped welded top cover is also provided with multiple corner support plates, which are welded to the four corners of the herringbone-shaped welded top cover respectively.

[0028] The inner surfaces of the rear inner top cover and the front inner top cover are respectively fixedly installed with rear and front sprue insulation.

[0029] The heat dissipation ridge is composed of a heat dissipation ridge top cover, a left first folding plate, a left second folding plate, a right first folding plate, a right second folding plate, a right side blocking plate, a left side blocking plate, a left ventilation and heat dissipation mesh plate, a right ventilation and heat dissipation mesh plate, and insulation cotton, which are fixed together by welding or fixed connection.

[0030] The roof ridge cover is formed by bending a flat plate. The first left fold, the second left fold, the first right fold, and the second right fold are all formed by bending.

[0031] The central tip of the roof ridge is the roof ridge, and several folded plate ventilation holes are opened at the other two ends. A left ventilation and heat dissipation mesh plate and a right ventilation and heat dissipation mesh plate are welded to the corresponding ventilation holes. The left ventilation and heat dissipation mesh plate and the right ventilation and heat dissipation mesh plate completely cover the folded plate ventilation holes on the first left folded plate and the first right folded plate.

[0032] The heat dissipation ridge and the herringbone welded roof are welded together.

[0033] The inner surface of the roof ridge is fixedly fitted with insulation cotton.

[0034] Combining all the above technical solutions, the beneficial effects of this utility model are as follows:

[0035] Based on fluid mechanics, a reasonable airflow organization is designed, and a double-layer "A-shaped" top cover design and a double-layer ridge-type heat dissipation structure are adopted, which is different from the traditional double-layer top design. At the same time, ventilation holes are reasonably designed on the front, back, left and right sides of the top cover, and ventilation holes are reasonably designed on the double-layer ridge of the transformer substation top cover.

[0036] The double-layered roof and double-layered ridge inner walls are all equipped with heat insulation and condensation insulation cotton and edge drainage channel structure design (to prevent condensation droplets from dripping vertically);

[0037] Based on the issues of materials science, appropriate thermal insulation materials (thermal insulation and anti-condensation cotton) are selected to effectively reduce the temperature difference between the inside and outside of the equipment cabinet and achieve the effect of preventing condensation.

[0038] Driven by natural convection and thermo-pressure, with zero fan setting. Based on Archimedes' principle (the principle of buoyancy), the less dense, hot air naturally rises, and the denser, cold air naturally sinks. This rising and sinking motion forms the natural circulation of air. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure;

[0040] Figure 1 This is a schematic diagram of the box-type substation and the box-type substation with anti-condensation and ventilation heat dissipation structure provided in this embodiment of the utility model.

[0041] Figure 2 This is a schematic diagram of the welded appearance of the herringbone top cover provided in this embodiment of the utility model;

[0042] Figure 3 This is a schematic diagram of the right-side blocking plate and the left-side blocking plate provided in an embodiment of this utility model;

[0043] Figure 4 This is a schematic diagram of a heat dissipation roof ridge provided in an embodiment of this utility model;

[0044] Figure 5 This is a partial enlarged view of the right ventilation and heat dissipation mesh plate provided in an embodiment of this utility model;

[0045] Figure 6 This is a schematic diagram of the internal structure of the herringbone-shaped welded top cover provided in this embodiment of the utility model;

[0046] Figure 7 This is a top view of the herringbone-shaped welded top cover provided in an embodiment of this utility model;

[0047] Figure 8 This is a partial enlarged view of the corner support plate provided in an embodiment of this utility model;

[0048] Figure 9 This utility model embodiment provides a front view of the ventilation and heat dissipation principle of the box-type substation and the box-type substation with an anti-condensation and ventilation and heat dissipation structure.

[0049] Figure 10This utility model embodiment provides a side view of the ventilation and heat dissipation principle of the box-type substation top cover with anti-condensation and ventilation and heat dissipation structure;

[0050] Figure 11 A schematic diagram of the hot air exhaust route of the heat dissipation ridge and the heat dissipation ridge where rainwater falls vertically onto the top cover of the transformer on rainy days.

[0051] Figure 12 Diagram showing the water drainage paths for the rear and front diaphragms, which are fixedly installed on the inner surfaces of the rear and front inner top covers, respectively.

[0052] Figure 13 Diagram showing the water drainage path for the insulation cotton fixedly installed on the inner surface of the heat dissipation ridge roof.

[0053] In the diagram: 1. Transformer top cover; 2. Transformer frame; 3. Transformer door panel; 4. Transformer base; 5. Lower transformer ventilation window; 6. Upper transformer ventilation window;

[0054] 7. Herringbone welded top cover; 7-1. Rear outer top cover; 7-2. Front outer top cover; 7-3. Right top cover side plug; 7-4. Left top cover side plug; 7-5. Right ventilation mesh plate; 7-6. Left ventilation mesh plate; 7-7. Front ventilation mesh plate; 7-8. Rear ventilation mesh plate; 7-9. Upper top cover support beam; 7-10. Rear inner top cover; 7-11. Front inner top cover; 7-12. Herringbone support rib; 7-13. Rear exposed cotton sizing; 7-14. Front exposed cotton sizing; 7-15. Corner support plate; 7-16. First notch; 7-17. Second notch; 7-18. Front outer top cover ventilation hole; 7-19. Rear outer top cover ventilation hole; 7-20. Right top cover side plug ventilation hole; 7-21. Left top cover side plug ventilation hole;

[0055] 8. Heat dissipation ridge; 8-1. Heat dissipation ridge top cover; 8-2. Left first folding plate; 8-3. Left second folding plate; 8-4. Right first folding plate; 8-5. Right second folding plate; 8-6. Right side blocking plate; 8-7. Left side blocking plate; 8-8. Left ventilation and heat dissipation mesh plate; 8-9. Right ventilation and heat dissipation mesh plate; 8-10. Exposed cotton; 8-11. Folding plate ventilation holes; 9. Hanging ring. Detailed Implementation

[0056] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0057] Example 1, such as Figures 1-8 As shown, the transformer substation and the box-type substation with anti-condensation and ventilation structure are mainly composed of transformer substation top cover 1, box frame 2, box door panel 3, and transformer substation base 4, which are fixedly connected together.

[0058] The transformer substation door panel 3 is fixed with a lower transformer substation ventilation window 5 and an upper transformer substation ventilation window 6. Both the lower transformer substation ventilation window 5 and the upper transformer substation ventilation window 6 serve to ventilate and dissipate heat for the transformer substation.

[0059] like Figure 2 The transformer top cover 1 is fixed together by welding the herringbone welded top cover 7, the heat dissipation ridge 8, and the hanging ring 9.

[0060] like Figure 6 The herringbone-shaped welded top cover 7 is mainly composed of the rear outer top cover 7-1, the front outer top cover 7-2, the right top cover side block 7-3, the left top cover side block 7-4, the right ventilation mesh plate 7-5, the left ventilation mesh plate 7-6, the front ventilation mesh plate 7-7, the rear ventilation mesh plate 7-8, the upper top cover support beam 7-9, the rear inner top cover 7-10, the front inner top cover 7-11, the herringbone support rib 7-12, the rear insulation cotton 7-13, the front insulation cotton 7-14, and the corner support plate 7-15, which are fixed together by welding or assembly.

[0061] The rear outer top cover 7-1 has a first notch 7-16 at one end, and the front outer top cover 7-2 has a second notch 7-17 at one end. The rear outer top cover 7-1 and the front outer top cover 7-2 are welded together through the first notch 7-16 and the second notch 7-17, which are of matching size. When welding, pay attention to the angle between the two to ensure that the end faces of the other end of the rear outer top cover 7-1 and the other end of the front outer top cover 7-2 with the front outer top cover ventilation hole 7-18 are horizontal and on the same horizontal plane.

[0062] The rear ventilation mesh plate 7-8 is spot-welded to the other end of the rear outer top cover 7-1 at the rear outer top cover ventilation hole 7-19, ensuring that the rear ventilation mesh plate 7-8 completely covers the rear outer top cover ventilation hole 7-19 on the rear outer top cover 7-1. The front ventilation mesh plate 7-7 is spot-welded to the other end of the front outer top cover 7-2 at the front outer top cover ventilation hole 7-18, ensuring that the front ventilation mesh plate 7-7 completely covers the front outer top cover ventilation hole 7-18 on the front outer top cover 7-2. The front ventilation mesh plate 7-7 and the rear ventilation mesh plate 7-8 serve the functions of heat dissipation and dust prevention.

[0063] After welding, the upper top cover support beam 7-9 is spot-welded to the inner surfaces of the rear outer top cover 7-1 and the front outer top cover 7-2 at certain dimensional intervals. Care should be taken to avoid welding deformation during spot welding. The upper top cover support beam 7-9 reinforces the outer top cover, preventing deformation under external forces.

[0064] The rear inner top cover 7-10 and the front inner top cover 7-11 are fixedly connected to the upper top cover support beam 7-9; the herringbone support rib 7-12 is fixed to the rear inner top cover 7-10 and the front inner top cover 7-11 by welding. The herringbone support rib 7-12 provides fixed support for the rear inner top cover 7-10 and the front inner top cover 7-11.

[0065] The right ventilation mesh plate 7-5 is spot welded to the right top cover side block ventilation hole 7-20 on the right top cover side block 7-3, ensuring that the right ventilation mesh plate 7-5 completely covers the right top cover side block ventilation hole 7-20 on the right top cover side block 7-3.

[0066] The left ventilation mesh plate 7-6 is spot welded to the left top cover side block ventilation hole 7-21 on the left top cover side block 7-4, ensuring that the left ventilation mesh plate 7-6 completely covers the left top cover side block ventilation hole 7-21 on the left top cover side block 7-4.

[0067] Weld the right top cover side plug 7-3 and the left top cover side plug 7-4 to the rear outer top cover 7-1 and the front outer top cover 7-2 respectively, requiring full welding;

[0068] like Figure 7 , Figure 8 As shown, the corner support plates 7-15 are welded to the four corners of the herringbone welded top cover 7, which serve to fix and strengthen the entire top cover.

[0069] like Figure 3 , Figure 4 , Figure 5 The heat dissipation ridge 8 is composed of heat dissipation ridge top cover 8-1, left first folding plate 8-2, left second folding plate 8-3, right first folding plate 8-4, right second folding plate 8-5, right side blocking plate 8-6, left side blocking plate 8-7, left ventilation and heat dissipation mesh plate 8-8, right ventilation and heat dissipation mesh plate 8-9, and insulation cotton 8-10, which are fixed together by welding or fixed connection.

[0070] The heat dissipation ridge cover 8-1 is formed by bending a single flat plate. The left first fold plate 8-2, left second fold plate 8-3, right first fold plate 8-4, and right second fold plate 8-5 are also formed by bending. The central tip of the heat dissipation ridge cover 8-1 is the heat dissipation ridge 8. Several fold plate ventilation holes 8-11 are opened vertically at the other two ends. The left ventilation and heat dissipation mesh plate 8-8 and the right ventilation and heat dissipation mesh plate 8-9 are welded to the corresponding ventilation holes. The left ventilation and heat dissipation mesh plate 8-8 and the right ventilation and heat dissipation mesh plate 8-9 completely cover the fold plate ventilation holes 8-11 on the left first fold plate 8-2 and the right first fold plate 8-4.

[0071] The heat dissipation ridge 8 and the herringbone welded top cover 7 are welded together, requiring full welding to ensure strength and IP protection level.

[0072] An insulating cotton 8-10 is fixedly installed on the inner surface of the heat dissipation ridge top cover 8-1; a rear insulating cotton 7-13 and a front insulating cotton 7-14 are fixedly installed on the inner surfaces of the rear inner top cover 7-10 and the front inner top cover 7-11, respectively.

[0073] Working principle.

[0074] (1) Heat dissipation; Figure 9 This utility model embodiment provides a front view of the ventilation and heat dissipation principle of the box-type substation and the box-type substation with an anti-condensation and ventilation and heat dissipation structure.

[0075] Figure 10 This is a side view of the ventilation and heat dissipation principle of the box-type substation and the top cover with anti-condensation and ventilation and heat dissipation structure provided by this utility model embodiment; wherein, the arrow points to the direction of hot air flow.

[0076] The ventilation and heat dissipation of prefabricated substations rely on the natural convection principle of hot air rising and cold air sinking (i.e., the chimney effect).

[0077] Characteristics of cold air: high density (large mass per unit volume) → naturally sinks → accumulates at the bottom of the container;

[0078] Hot air characteristics: low density (expands when heated) → rises naturally → accumulates at the top of the chamber;

[0079] Airflow circulation: Cold air enters the enclosure from the bottom → absorbs heat from the transformer / components → rises due to heat → is discharged from the top → external cold air replenishes from the bottom, forming a self-circulating air duct.

[0080] in, Where P represents pressure, M represents molar mass, R represents gas constant, and T represents temperature; generally, as temperature increases, density decreases, and hot air rises.

[0081] Chimney effect: The height difference H between the air inlet (low) and outlet (high) of the transformer substation creates a pressure gradient.

[0082] ΔP=ρ out ·g·H-ρ in ·g·H; where ρ out ρ represents the density of the external cold air. in The density of the internal hot air is represented by g, and g represents the acceleration due to gravity.

[0083] When ΔP > 0, the airflow continuously draws in from the bottom and exits from the top.

[0084] Hot air rises and gathers at the top of the transformer. The addition of a heat dissipation ridge 8 at the top helps to better expel the hot air. The hot air accumulates more at the top cover, avoiding the formation of a "heat island effect". When there is a large amount of hot air accumulating inside the transformer and the heat dissipation ridge 8 at the top of the transformer is limited in its heat dissipation, the hot air can also be discharged from the ventilation holes at the front, back, left and right of the transformer top cover 1.

[0085] like Figure 11 A schematic diagram of the hot air exhaust route of the heat dissipation ridge and the herringbone welded top cover 7 on the transformer top cover 1 on rainy days; where the single arrow line is the hot air exhaust route of the heat dissipation ridge 8, and the multi-arrow line is the route for the water droplets splashed after the rain falls vertically on the transformer top cover 1 to be discharged.

[0086] On rainy days, rainwater falling vertically onto the transformer substation roof 1 will cause some water droplets to splash into the cooling ridge 8. However, due to the special design of the cooling ridge 8, rainwater will not enter the herringbone welded roof 7 of the transformer substation roof 1. Another aspect of this design is for outdoor use of the transformer substation. When dust in the air enters the ventilation mesh of the left ventilation cooling mesh 8-8 and the right ventilation cooling mesh 8-9, the splashing rainwater can help clean the dust, achieving better ventilation.

[0087] (2) Prevent condensation.

[0088] The formation of condensation is a direct result of the phase change of water vapor caused by the encounter of "cold surface and humid air". The core reason is the interaction between the uneven distribution of temperature and humidity inside the transformer and the external environment.

[0089] Because the inner surface of the heat dissipation ridge top cover 8-1 is fixedly installed with the condensation insulation cotton 8-10; the inner surfaces of the rear inner top cover 7-10 and the front inner top cover 7-11 are respectively fixedly installed with the rear condensation insulation cotton 7-13 and the front condensation insulation cotton 7-14.

[0090] Specifically, such as Figure 12 Diagram showing the water drainage path for the rear diaphragm 7-13 and the front diaphragm 7-14, which are fixedly installed on the inner surfaces of the rear inner top cover 7-10 and the front inner top cover 7-11, respectively.

[0091] Figure 13 Diagram showing the water discharge path for the insulation cotton 8-10 fixedly installed on the inner surface of the heat dissipation roof ridge cover 8-1;

[0092] Figure 12 , Figure 13 The curve with arrows indicates the water outlet path.

[0093] The principle of Condensation Insulation Cotton 8-10: Condensation insulation cotton (also known as anti-condensation cotton, condensation-absorbing cotton, or condensation-blocking cotton) is a functional material specifically designed to prevent condensation from accumulating and dripping. Its core function lies in altering the form and flow path of water through a special physical structure. It has a porous structure. When moisture in the air comes into contact with Condensation Insulation Cotton 8-10, its internal pores are extremely small, like countless tiny "capillaries." According to capillary action, liquid is absorbed and stored in these capillaries due to surface tension and adhesion. However, Condensation Insulation Cotton 8-10 does not simply absorb and store water; it dynamically guides the flow. Once saturated with water, it autonomously drains the water along its inclined inner wall, preventing the formation of noticeable water droplets on its surface and thus preventing water droplets from dripping onto equipment.

[0094] It slows down secondary evaporation, and the adsorbed moisture is locked in the fiber gaps, thus slowing down the evaporation rate and avoiding increased condensation due to rapid evaporation-condensation cycle (suitable for environments with fluctuating humidity).

[0095] Surface water control: After condensation forms on the surface of the 8-10 insulating cotton, it is immediately absorbed and diffused into a water film by the fibers, preventing it from accumulating into water droplets of sufficient weight, thus avoiding dripping at the source.

[0096] Internally, the adsorbed moisture migrates towards the bottom of the cotton body (in the direction of gravity) under the action of capillary force, and finally collects at the contact edge between the insulating cotton 8-10 and the substrate. When the moisture migrates to the bottom edge of the cotton body, it detaches from the fibers under the action of gravity and flows downward along the inclined substrate surface in the form of a continuous water film, rather than dripping.

[0097] Principle: The cabinet top is covered with 8-10 insulation cotton and an inclined guide plate to guide the water to the side of the cabinet for discharge. The ceiling is also equipped with 8-10 insulation cotton, and the front-high-back-low design allows the water to flow to the rear wall.

[0098] Condensation insulation material 8-10 also has good heat insulation properties, which can resist the heat generated by direct sunlight on the metal surface, effectively reducing the temperature inside and outside the equipment cabinet. With these two measures combined, it ultimately achieves the effect of preventing condensation.

[0099] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0100] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the scope of the technology disclosed in the present utility model, within the spirit and principles of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A box-type substation and a box-type substation with an anti-condensation and ventilation structure, characterized in that, The box-type substation is fixedly connected together by the box-type substation top cover (1), the box frame (2), the box door panel (3), and the box-type substation base (4); The transformer substation door panel (3) is fixed with a lower transformer substation ventilation window (5) and an upper transformer substation ventilation window (6); The transformer substation top cover (1) is fixed together by welding the herringbone welded top cover (7), the heat dissipation ridge (8), and the hanging ring (9); The herringbone welded top cover (7) is provided with a rear outer top cover (7-1); The rear outer top cover (7-1) has a first notch (7-16) at one end, and the front outer top cover (7-2) has a second notch (7-17) at one end. The rear outer top cover (7-1) and the front outer top cover (7-2) are welded together through the first notch (7-16) and the second notch (7-17) that match the size. The rear ventilation mesh plate (7-8) is spot welded to the rear outer top cover ventilation hole (7-19) on the other end of the rear outer top cover (7-1); the front ventilation mesh plate (7-7) is spot welded to the front outer top cover ventilation hole (7-18) on the other end of the front outer top cover (7-2); The upper cover support beam (7-9) is spot-welded to the inner surfaces of the rear outer cover (7-1) and the front outer cover (7-2) at certain dimensional intervals; Both the rear inner top cover (7-10) and the front inner top cover (7-11) are fixedly connected to the upper top cover support beam (7-9); the herringbone support rib (7-12) is fixed together with the rear inner top cover (7-10) and the front inner top cover (7-11) by welding. The right ventilation mesh plate (7-5) is spot welded to the right top cover side block ventilation hole (7-20) on the right top cover side block (7-3); The left ventilation mesh plate (7-6) is spot welded to the left top cover side block ventilation hole (7-21) on the left top cover side block (7-4).

2. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 1, characterized in that, The herringbone welded top cover (7) is also provided with multiple corner support plates (7-15), which are welded to the four corners of the herringbone welded top cover (7).

3. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 1, characterized in that, The inner surfaces of the rear inner top cover (7-10) and the front inner top cover (7-11) are respectively fixedly installed with rear septum (7-13) and front septum (7-14).

4. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 1, characterized in that, The heat dissipation ridge (8) is fixed together by welding or fixed connection of the heat dissipation ridge top cover (8-1), the left first folding plate (8-2), the left second folding plate (8-3), the right first folding plate (8-4), the right second folding plate (8-5), the right side blocking plate (8-6), the left side blocking plate (8-7), the left ventilation and heat dissipation mesh plate (8-8), the right ventilation and heat dissipation mesh plate (8-9), and the insulation cotton (8-10).

5. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 4, characterized in that, The heat dissipation ridge top cover (8-1) is formed by bending a flat plate. The first left fold (8-2), the second left fold (8-3), the first right fold (8-4), and the second right fold (8-5) are all formed by bending. The central tip of the heat dissipation roof ridge (8-1) is the heat dissipation roof ridge (8). Several folded plate ventilation holes (8-11) are opened at the other two ends in vertical positions. A left ventilation heat dissipation mesh plate (8-8) and a right ventilation heat dissipation mesh plate (8-9) are welded to the corresponding ventilation holes. The left ventilation heat dissipation mesh plate (8-8) and the right ventilation heat dissipation mesh plate (8-9) completely cover the folded plate ventilation holes (8-11) on the left first folded plate (8-2) and the right first folded plate (8-4).

6. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 4, characterized in that, The heat dissipation ridge (8) and the herringbone welded roof (7) are welded together by welding.

7. The transformer substation top cover and transformer substation with anti-condensation and ventilation heat dissipation structure according to claim 4, characterized in that, An insulating cotton (8-10) is fixedly installed on the inner surface of the heat dissipation ridge top cover (8-1).

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