High-capacity box-type substation top heat dissipation device

Abstract

A plurality of heat dissipation structures are installed on the top of a box body, a centrifugal fan is installed on the top of the box body, an air opening is formed in the bottom of the box body, and an air channel II is arranged in the box body and communicated with the air opening and the top heat dissipation structures. When equipment in the box body does not work, ventilation is achieved through the bottom air opening, ventilation is achieved through the top louver, the n-shaped cover and the dustproof filter cotton are installed on the outer top of the air duct, in severe weather, dust is not prone to entering the box body through the louver under the blocking effect of the n-shaped cover and the dustproof filter cotton, and transverse sand wind invasion is effectively avoided. When the equipment in the box body works, the heat in the box body can be dissipated upwards from the air opening along the air duct II and outwards from the channel I, the channel II and the like at the top to the louver by utilizing the heat rising principle and through the flexible adjustment of the starting, stopping, rotating speed and the like of the centrifugal fan, so that the box body can be rapidly dissipated, and the service life of the equipment in the box body is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of box-type substations, and particularly to a top heat dissipation device for a large-capacity box-type substation. Background Art

[0002] In the electrical engineering industry, there are many important scenarios for heat dissipation of sealed boxes, and a typical one is the heat dissipation of new energy substations. The traditional heat dissipation method is to set heat dissipation windows on the side of the box, and its disadvantages are as follows:

[0003] On the one hand, after the heating equipment in the box (box substation room) works, due to the rising of hot air, if only dissipating heat from the side, the heat dissipation effect is poor;

[0004] On the other hand, the box is generally installed outdoors. Due to environmental factors such as sand and dust, dust often accumulates in the box, and the negative pressure caused by the ordinary heat dissipation method will cause an increase in the protection pressure. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model provides a top heat dissipation device for a large-capacity box-type substation, and its technical solution is as follows:

[0006] It includes a box body and a box cover arranged on the top of the box body. A number of heat dissipation structures are installed on the top of the box body, and each heat dissipation structure is arranged on the top of the heating body in the box body;

[0007] Each heat dissipation structure is composed of a wind cylinder, a cover plate, a fan and a louver. The wind cylinder passes through the box cover and is connected to the inside of the box body. The wind cylinder and the box cover are fixedly connected by an angle steel; an inverted "冖" - shaped cover plate is installed on the outer top of the wind cylinder; a centrifugal fan is axially arranged in the wind cylinder. The fan is installed on a fixing plate, and the fixing plate and the bracket in the wind cylinder are installed and fixed by matching bolts and nuts;

[0008] Louvers are arranged on at least two adjacent side walls of the wind cylinder, and dust-proof filter cotton is installed on the inner wall of the louver.

[0009] Further, an air duct is arranged around the heating body, and an air inlet communicating with the outside is arranged at the bottom of the box body. The air duct is connected to the air inlet.

[0010] Further, there are four heat dissipation structures, which are in a "field" shape, and each heat dissipation structure is arranged at intervals.

[0011] Further, there are four heat dissipation structures, which are in a "field" shape, and each heat dissipation structure is arranged closely, and there are no louvers on the wind cylinders of adjacent heat dissipation structures.

[0012] Further, the heating body is a transformer.

[0013] The beneficial effects of the present utility model are as follows: The present utility model is a top heat dissipation device for a large-capacity box-type substation. A number of heat dissipation structures are installed on the top of the box body. The centrifugal fan is installed on the top of the box body. An air outlet is provided at the bottom of the box body. An air duct is provided inside the box body and is connected to the air outlet and the top heat dissipation structure. When the equipment inside the box body works, using the principle of heat rising, flexible adjustment is carried out through the start-stop, rotation speed, etc. of the centrifugal fan. The heat inside the box body can rise along the air duct from the air outlet and dissipate heat outward from the top louvers. The box body can dissipate heat quickly. Since a "冖"-shaped cover and a dust-proof filter cotton are installed on the outer top of the air duct, even in bad weather, under the blocking effect of the "冖"-shaped cover and the dust-proof filter cotton, dust is not easily introduced into the box body, and the service life of the equipment inside the box body is prolonged. The present utility model is improved without changing the internal structure of the box substation. Its structure is simple and it is more conducive to the internal heat dissipation of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of a single heat dissipation structure of the present utility model;

[0015] Figure 2 Structural diagram of the ventilation and heat dissipation of the box body in Embodiment 1 after the present utility model is installed;

[0016] Figure 3 is Figure 2 Top view;

[0017] Figure 4 Structural diagram of the ventilation and heat dissipation of the box body in Embodiment 2 after the present utility model is installed;

[0018] Figure 5 is Figure 4 Top view;

[0019] Figure 6 is Figure 1 --- Enlarged view of part A;

[0020] As shown in the figure, 1 centrifugal fan, 2 air duct, 3 louvers, 4 dust-proof filter cotton, 5 bracket, 6 single heat dissipation structure, 7 box body, 8 box cover, 9 Channel I, 10 Channel II, 11 Air duct II, 12 Bottom of the box body, 13 fixing plate, 14 bolt, 15 cover plate, 16 fan installation cover. SPECIFIC EMBODIMENTS

[0021] As shown in the figure, the present utility model is a top heat dissipation device for a large-capacity box-type substation, which is particularly suitable for large-capacity box-type substations, relatively airtight box substation environments, and insufficient internal heat dissipation spaces. Its structure is simple and easy to install, and only need to open holes and install at different positions according to different heat dissipation requirements.

[0022] It includes a box body 7 (the interior of the box body is divided into two parts, the front box and the rear box, by a partition), and a box cover 8 provided on the top of the box body. Inside the box body, there is a heating element (for example: the heating element is a transformer). There is an air duct II 11 around the heating element. There is an air outlet communicating with the outside at the bottom 12 of the box body, and the air duct II 11 is connected to the air outlet. The heat dissipation system located at the top can save the internal space of the box-type substation and ensure the integrity of the structure. The positions of the fan and the air duct can be arranged according to the specific situation of the box-type substation, so as to facilitate installation and mainly require no conflict with other components.

[0023] Four heat dissipation structures are installed on the top of the box body, and each heat dissipation structure is arranged on the top of the heating element inside the box body.

[0024] A single heat dissipation structure 6 is composed of a wind cylinder 2, a cover plate 15, a centrifugal fan 1 (which is a prior art), and a (one-way damping) louver 3. The bottom of the wind cylinder (in the shape of a cube) passes through the box cover 8 and is connected to the inside of the box body. The outer side wall of the wind cylinder is fixedly connected to the box cover through an angle steel; two brackets 5 are transversely arranged inside the cylinder and are on the same horizontal line. One side of the bracket is fixedly welded to the inner wall of the wind cylinder through an angle steel, and the other side is fixedly installed with one end of a fixing plate 13 through a matching bolt 14 and a nut; the fan installation cover is fixed on the upper surface of the fixing plate through a matching bolt and a nut, and there is an air inlet opening for the centrifugal fan on the fixing plate. The centrifugal fan 1 is axially arranged in the wind cylinder (according to the differences of large-capacity box-type substations and the requirements for their heat dissipation capabilities, multiple fans can be connected in series, and the wind speed of multiple fans can be controlled by one system. When one fan has a problem, the operation of other fans is not affected, greatly increasing its adaptability to accidents.). The fan is installed inside the fan installation cover 16.

[0025] An "冖"-shaped cover plate 15 is installed on the outer top of the wind cylinder; the two sides of the "冖"-shaped cover plate are inclined outwards. A louver 3 is arranged on the side wall of the wind cylinder, and a dust-proof filter cotton 4 is installed on the inner wall of the louver. When the system is in no-load or static state, the combination of the one-way damping louver and the filter cotton can ensure that the system has excellent protection capabilities (IP54). At the same time, the one-way damping louver can also prevent the hot air discharged by other fans from flowing back. Embodiment

[0026] As Figure 2 and 3 shown, two heat dissipation structures are installed on the top of each of the front box and the rear box, and the heat dissipation structures of the front box and the rear box are the same.

[0027] On the top of the front box, the two heat dissipation structures are arranged at intervals, and there are no louvers on the opposite faces, and louvers are provided on the other three faces. (The two adjacent heat dissipation structures in the front and back are also arranged at intervals). Embodiment

[0028] As Figure 4 and Figure 5 As shown in Figure 5 , different from Embodiment 1, the heat dissipation structures of the front box and the rear box are arranged closely next to each other in a "field" shape, and there are no louvers on the mutually adjacent sides.

[0029] For different types of box-type substations, different air ducts can be designed to ensure the adaptability of the heat dissipation system. For box-type substations with a relatively large top, multiple air ducts and fans can be installed. At the same time, the monitoring system is connected to the monitoring system自带 by the box-type substation to ensure the stable operation of the system. The windshields protecting the operation of the fans are generally of standard models, which are convenient for disassembly and replacement.

[0030] The utility model relates to a top heat dissipation device for a large-capacity box-type substation. A plurality of heat dissipation structures are installed on the top of the box body. The centrifugal fan is installed on the top of the box body. An air outlet is provided at the bottom of the box body. An air duct II is provided inside the box body and is communicated with the air outlet and the top heat dissipation structure (with a first channel 9, a second channel 10, etc.). When the equipment inside the box body is not working, ventilation is carried out through the air outlet at the bottom and the louvers on the top. Since a "冖"-shaped cover and a dust-proof filter cotton are installed on the outer top of the air duct, even in case of bad weather, due to the blocking effect of the "冖"-shaped cover and the dust-proof filter cotton, dust is not easily introduced into the box body, effectively avoiding the intrusion of lateral wind and sand. When the equipment inside the box body is working, using the principle of heat rising, flexible adjustment is carried out through the start-stop, rotation speed, etc. of the centrifugal fan. The heat inside the box body can rise from the air outlet along the air duct II, and then radiate outwards from the first channel, the second channel, etc. at the top to the louvers. The box body can dissipate heat quickly, extending the service life of the equipment inside the box body. The utility model is improved without changing the internal structure of the box-type substation, and has a simple structure, which is more conducive to the heat dissipation inside the box body.

[0031] The above embodiments are only used to illustrate the utility model and are not intended to limit the protection scope of the utility model. After reading the technical content of the utility model, those skilled in the art can make various changes, modifications or variations to the utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A large-capacity box-type substation top heat dissipation device comprises a box body and a box cover arranged on the top of the box body, characterized in that: Install a number of heat dissipation structures on the top of the box body, and each heat dissipation structure is arranged on the top of the heat generating body in the box body; Each heat dissipation structure consists of a wind tunnel, a cover plate, a fan and a louver. The wind tunnel passes through the box cover and is connected to the inside of the box body. The wind tunnel and the box cover are fixedly connected by angle steel; an inverted "冖" shaped cover plate is installed on the outer top of the wind tunnel; a centrifugal fan is axially arranged inside the wind tunnel, and the fan is installed on a fixing plate. The fixing plate and the bracket inside the wind tunnel are installed and fixed by matching bolts and nuts; Louvers are arranged on at least two adjacent side walls of the wind tunnel, and dust-proof filter cotton is installed on the inner wall of the louver.

2. The large-capacity box-type substation top heat dissipation device according to claim 1 is characterized in that: An air duct is arranged around the heat generating body, and an air outlet communicating with the outside is arranged at the bottom of the box body. The air duct is connected to the air outlet.

3. The large-capacity box-type substation top heat dissipation device according to claim 1 is characterized in that: There are four heat dissipation structures, in a "field" shape, and each heat dissipation structure is arranged at intervals.

4. The large-capacity box-type substation top heat dissipation device according to claim 1 is characterized in that: There are four heat dissipation structures, in a "field" shape, and each heat dissipation structure is arranged closely, and there are no louvers on the wind tunnels of adjacent heat dissipation structures.

5. The large-capacity box-type substation top heat dissipation device according to any one of claims 1 to 4, characterized in that: The heat generating body is a transformer.

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