Temperature control device of box-type substation

Abstract

The utility model relates to the technical field of box-type transformer substation temperature control, in particular to a box-type transformer substation temperature control device which comprises an auxiliary temperature control device installed on a box-type transformer substation. The auxiliary temperature control device comprises a driven roller, a driving roller and a driving device, the driven roller and the driving roller are rotationally connected to the roof of the box-type substation, the driving device drives the driven roller and the driving roller to roll in the same direction, and a temperature control belt is wound around the driven roller and the driving roller jointly and comprises a refrigeration belt and a heat preservation belt which are connected with each other. The refrigeration belt comprises a radiation refrigeration film arranged on the surface layer, the heat preservation belt comprises a photothermal conversion film arranged on the surface layer, the end of the refrigeration belt is connected with the driven roller, and the end of the heat preservation belt is connected with the driving roller. Compared with the prior art, the auxiliary temperature control device is arranged, so that the technical problem of high energy consumption caused by long-term use of the cooling device of the existing box-type transformer substation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to box -type substation temperature control technical field, concretely is a box -type substation temperature control device. BACKGROUND

[0002] Box -type substation, also known as prepackaged substation or prepackaged substation, it is the high -voltage switchgear, distribution transformer and low -voltage distribution device, according to the specific wiring scheme integration as a whole factory prefabricated distribution equipment, can be applied to indoor or outdoor environment, its structure is compact. The equipment can combine the transformer step -down function and low -voltage distribution function ingeniously, and be installed in a steel structure box with moisture -proof, rust -proof, dust -proof, rat -proof, fire -proof, theft -proof, heat -proof and multiple functions, and full -enclosed, movable.

[0003] At the moment of the vigorous development of intelligent substation, numerous temperature sensitive components are applied in the substation. Electronic equipment will inevitably generate certain heat when running, and these heat will cause damage to the working electronic devices and precision instruments if continuously accumulated. The traditional substation mostly uses small exhaust fans for heat dissipation, but its heat dissipation effect is very limited, and in some cases, large cooling equipment needs to be additionally added to assist cooling. For example, in the patent "cooling mechanism of box -type substation" (application number CN202322017595.9, publication time 20240109), a water cooling mechanism is used to implement water cooling for the substation. This method can quickly reduce the indoor temperature, but the energy consumption is huge and the cooling cost is high during long-term use. For example, as described in the patent "box -type substation with cooling device" (application number CN202022104196.2, publication time 20210504), a fan and a refrigeration fin are used to cool the box -type substation. The effect is remarkable in the short term, but the same amount of energy will be consumed during long-term use.

[0004] Therefore, in the technical field, it is an urgent key technical problem to explore a box -type substation cooling device that can realize low energy consumption in long-term use. UTILITY MODEL CONTENT

[0005] The utility model intends to provide a box -type substation temperature control device, which is mainly used to solve the technical problem of high energy consumption of existing box -type substation cooling devices during long-term use.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model relates to a kind of box-type substation temperature control device, including auxiliary temperature control device installed on box-type substation, the auxiliary temperature control device includes driven roller rotationally connected in the roof of box-type substation, driving roller and the driving device of driving driven roller, driving roller, which rolls in the same direction, the temperature control band is wound on the driving roller, the temperature control band includes mutually connected refrigeration band and heat preservation band, the refrigeration band includes the radiation refrigeration film arranged in surface layer, the heat preservation band includes the photo-thermal conversion film arranged in surface layer, refrigeration band end is connected with driven roller, and heat preservation band end is connected with driving roller.

[0008] Preferably, the driven roller is rotationally connected with the mounting plate fixed at the both ends of the driving roller and the driving roller.

[0009] Preferably, the driving device includes a chain wheel installed at the both ends of the driven roller and the driving roller, and a chain is engaged with the chain wheels on the same side.

[0010] Preferably, the driving device further includes a housing for protecting the chain wheel and the chain.

[0011] Preferably, a support rod is further arranged between the driven roller and the driving roller and fixed to the roof of the box-type substation, and the temperature control band is located on the upper surface of the support rod.

[0012] Preferably, the utility model further includes an active cooling device, and the active cooling device includes an air exchange fan installed on the box-type substation, the air exchange fan is electrically connected with a solar power generation device, and the solar power generation device includes a solar panel.

[0013] Preferably, the refrigeration band and the heat preservation band both include a flame-retardant fiber cloth, and the radiation refrigeration film and the photo-thermal conversion film are fixed to the fiber cloth.

[0014] The utility model has the following advantages:

[0015] (1) The prior art cools the box-type substation by air cooling, water cooling and corresponding equipment, but the energy consumption of these equipment is high during long-term use, resulting in high use and maintenance costs of the box-type substation. In order to compensate for the technical problem of high energy consumption of the existing cooling equipment, the present scheme proposes to use a radiation cooling film as the surface layer of the cooling belt as the core of the auxiliary cooling device to cool the box-type substation. The basic principle of radiation cooling is to release heat by emitting infrared rays through the atmospheric window (8-13 pm) to the universe space with a temperature close to absolute zero. When the radiation cooling film is arranged outdoors and located on the roof surface, it can cool the roof space of the box-type substation, and also strongly reflect sunlight to avoid direct sunlight from causing the roof to heat up and thus causing the temperature inside the box-type substation to rise.

[0016] In the present scheme, the cooling belt is also connected with a heat preservation belt, and the surface layer of the heat preservation belt is a light-heat conversion film. The light-heat conversion film can convert the incident light into heat energy after absorption, and when the weather is cold, the heat preservation belt can be adjusted to cover the roof of the box-type substation, and the energy conversion characteristics of the light-heat conversion film can be used to heat the roof space of the box-type substation. In winter, the situation of snow and ice accumulation on the roof of the box-type substation can be reduced, so as to avoid the situation that the indoor temperature of the box-type substation is too low to cause equipment failure.

[0017] Meanwhile, the device can drive the driven roller and the driving roller to rotate through the driving device, so as to adjust the winding and unwinding of the cooling belt and the heat preservation belt, and select the cooling belt or the heat preservation belt to cover the roof of the box-type substation according to the weather.

[0018] In summary, the present scheme uses the material characteristics of the radiation cooling film to cool the box-type substation, and no additional energy is consumed except for the process of unwinding the cooling belt. Compared with the working mode of the existing equipment, the present scheme is more energy-saving, and solves the technical problem of high energy consumption of the existing box-type substation cooling device during long-term use. Meanwhile, the material characteristics of the light-heat conversion film are combined, and the heat preservation belt and the cooling belt are switched according to the environmental temperature through the driving device, so as to control the temperature of the box-type substation.

[0019] (2) In the present scheme, a main cooling device is also arranged, which is started in the case that the temperature inside the box-type substation rises seriously, and cools the inside of the box-type substation by air cooling.

[0020] (3) The connection mode of the temperature control belt with the driven roller, the driving roller and the supporting rod is equivalent to that the supporting rod lifts the middle part of the temperature control belt upward, so that the temperature control belt forms a structure with high middle and low sides. When it rains, the rainwater can flow along the surface of the temperature control belt to both sides, so as to avoid the rainwater from accumulating in the middle of the temperature control belt to press down the temperature control belt and aggravate the fatigue damage of the material of the temperature control belt. Meanwhile, the arrangement mode of the temperature control belt can also make the temperature control belt closer to the roof of the box-type substation, so as to better control the temperature of the box-type substation. BRIEF DESCRIPTION OF DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a three-dimensional structural diagram of a box-type substation temperature control device according to this utility model patent;

[0023] Figure 2 This is a three-dimensional structural diagram (without protective shell) of a box-type substation temperature control device according to this utility model patent.

[0024] Figure 3 This is a three-dimensional structural diagram of a box-type substation temperature control device according to this utility model patent;

[0025] Figure 4 This utility model patent relates to a box-type substation temperature control device. Figure 3 Enlarged view of point A;

[0026] Figure 5 This is an exploded view of the support rod structure of a box-type substation temperature control device according to this utility model patent.

[0027] The reference numerals in the accompanying drawings include: box-type substation 1, driven roller 21, driving roller 22, support rod 3, bushing 31, spindle 32, sprocket 41, chain 42, motor 5, cooling belt 61, insulation belt 62, solar panel 8, and ventilation fan 9. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0032] like Figure 1 As shown, the temperature control device of this prefabricated substation 1 mainly consists of two parts: an auxiliary temperature control device and an active cooling device. These two parts work together to achieve precise temperature control of the prefabricated substation 1.

[0033] like Figure 3 , Figure 4 , Figure 5 As shown, the auxiliary temperature control device includes a driven roller 21 and a driven roller 22 fixed on the roof of the box-type substation 1, and a drive device that drives the two driven rollers to roll in the same direction. Both ends of the driven roller 21 and the driven roller 22 are rotatably connected to the mounting plate fixed on the roof of the box-type substation 1 at the lower end through high-quality bearings, so as to be firmly fixed on the roof of the box-type substation 1.

[0034] like Figure 2As shown, the temperature control belt is co-wound on the driven roller 21 and the driving roller 22, and is composed of a refrigeration belt 61 and a heat preservation belt 62 connected with each other; the refrigeration belt 61 is connected with the driven roller 21 at the end, and the heat preservation belt 62 is connected with the driving roller 22 at the end; this connection mode can facilitate the switching coverage of the refrigeration belt 61 and the heat preservation belt 62 under the action of the driving device; the temperature control belt is located on the upper surface of the supporting rod 3, and the upper surface of the part of the temperature control belt between the driven roller 21 and the driving roller 22 is tangent to the lower surface of the driven roller 21 and the driving roller 22; this design ensures the stability and smoothness of the temperature control belt during rolling; at the same time, due to the connection mode of the temperature control belt with the driven roller 21, the driving roller 22 and the supporting rod, the temperature control belt forms a structure with high middle and low sides; when it rains, the rainwater will flow to both sides along the surface of the temperature control belt, avoiding the accumulation of rainwater in the middle of the temperature control belt to press the temperature control belt, thereby reducing the material fatigue damage of the temperature control belt.

[0035] The supporting rod 3 comprises a shaft 32 and a shaft sleeve 31; the both ends of the shaft 32 are rotatably connected with mounting plates through bearings; the lower end of the mounting plate is fixed on the roof of the box-type substation; the shaft sleeve 31 is rotatably sleeved on the outer surface of the shaft 32; the temperature control belt is in surface contact with the shaft sleeve 31 of the supporting rod 3; when the temperature control belt moves, the shaft sleeve 31 rotates relative to the shaft 32, thereby reducing the friction of the shaft sleeve 31 on the temperature control belt and avoiding the friction damage to the temperature control belt.

[0036] As shown in Figure 3 , Figure 4 , the driving device is composed of a chain 42 and sprockets 41 coaxially fixed at the both ends of the driven roller 21 and the driving roller 22; the chain 42 is closely engaged with the sprockets 41; this transmission mode has the characteristics of high efficiency and stability, and the engagement precision of the sprockets 41 and the chain 42 is not high, which is suitable for outdoor environment; one end of the driving roller 22 is also provided with a motor 5; the motor 5 is started to drive the driving roller to rotate; the sprockets 41 and the chain 42 can accurately transmit the power of the motor 5 to the driven roller, so as to realize the accurate winding and unwinding of the temperature control belt.

[0037] As shown in Figure 1 , the driving device further comprises a housing for protecting the transmission assembly; the housing is made of high-strength and corrosion-resistant material; the sprockets 41 and the chain 42 are protected in the housing; this can effectively prevent the damage of external environmental factors such as dust and rainwater to the parts such as the sprockets 41 and the chain 42, thereby prolonging the service life.

[0038] The refrigeration belt 61 includes a radiant cooling film and a fire-resistant fiber cloth arranged on the surface layer. The radiant cooling film is fixed with the fiber cloth. The radiant cooling film can release heat by emitting infrared rays to the cosmic space with a temperature close to absolute zero through the atmospheric window (8-13 μm), effectively absorb the heat of the roof space of the box-type substation 1 when the radiant cooling film is arranged on the roof surface layer of the box-type substation 1, reduce the roof temperature, and strongly reflect sunlight to avoid the direct sunlight from causing the roof temperature to rise and the internal temperature of the box-type substation 1 to rise. The radiant cooling film can be spliced with one or more of a porous network structure radiant cooling film, a high refractive index pyramid texture optical film, an anti-aging radiant cooling transparent film, and a flexible transparent radiant cooling window material.

[0039] The heat preservation belt 62 includes a photo-thermal conversion film and a fire-resistant fiber cloth arranged on the surface layer. The photo-thermal conversion film is tightly fixed with the fiber cloth and has good stability. The photo-thermal conversion film can convert incident light into heat energy after absorption, and when the weather is cold, the heat preservation belt 62 is adjusted to cover the roof of the box-type substation 1, the energy conversion characteristics of the photo-thermal conversion film can be used to heat the roof space of the box-type substation 1, reduce the situation of snow and ice accumulation on the roof of the box-type substation 1, and avoid the low indoor temperature of the box-type substation 1 from causing equipment operation failure. The photo-thermal conversion film can be spliced with one or more of a PEG / PVA / Au NPs composite film, a porous carbon and metal nanoparticle composite film, a carbon nanofiber film, a graphene film, a carboxylated styrene-butadiene rubber-based electromagnetic shielding composite film, and a PEDOT:PSS composite film.

[0040] As shown in Figures 1-4 The active cooling device includes an air exchange fan 9 and a solar power generation device installed on the box-type substation 1, and the air exchange fan 9 is connected with the solar power generation device. The air exchange fan 9 is started in the case of serious internal temperature rise of the box-type substation, and the air exchange fan 9 cools the inside of the box-type substation by air cooling technology.

[0041] As shown in Figure 3 The air exchange fan 9 is installed at a suitable position on the box-type substation 1 to ensure that the hot air inside the box-type substation 1 can be effectively exhausted and the external cold air can be introduced. The air exchange fan 9 is designed to be high-efficiency and low-noise, and can achieve good ventilation effect without affecting the surrounding environment.

[0042] The solar power generation device includes a plurality of solar panels 8 installed at a position capable of fully receiving sunlight, such as the top or side of the box-type substation 1. The solar panels 8 convert solar energy into electrical energy to provide clean and sustainable supplemental energy for the air exchange fan 9. This design not only reduces energy consumption, but also reduces dependence on traditional power grids and improves the energy self-sufficiency of the box-type substation 1.

[0043] The temperature sensor is electrically connected with a controller, and the controller is electrically connected with the motor 5 to control the forward rotation or the reverse rotation of the motor 5; and the controller is electrically connected with the ventilation fan 9 to control the ventilation fan to start heat exchange when the indoor temperature is too high.

[0044] The technical principle of the utility model is as follows:

[0045] When the temperature inside the box-type substation 1 is too high, the temperature sensor transmits a signal to the controller, the controller controls the motor 5 to start, the motor 5 drives the driving roller 22 to rotate, through the action of the chain wheel 41 and the chain 42, the driven roller 21 and the driving roller 22 roll in the same direction, and the refrigeration belt 61 is unfolded and covered on the roof of the box-type substation 1. At this time, the radiative refrigeration film plays a role, releases heat by emitting infrared rays to the universe, cools the roof space of the box-type substation 1, and reflects sunlight to avoid the roof temperature rising to cause the internal temperature of the box-type substation 1 to rise.

[0046] When the temperature inside the box-type substation 1 is too low, the temperature sensor transmits a signal to the controller, the controller controls the motor 5 to start, adjusts the rotation direction of the motor 5, drives the driven roller 21 and the driving roller 22 to rotate, and unfolds the heat preservation belt 62 and covers it on the roof of the box-type substation 1. The light-heat conversion film on the surface layer of the heat preservation belt 62 converts the incident light into heat energy after absorbing the incident light, supplies heat to the roof space of the box-type substation 1, and prevents the roof from icing and the indoor temperature from being too low.

[0047] Due to the connection mode of the temperature control belt, the driven roller 21, the driving roller 22 and the supporting rod, the temperature control belt forms a structure with the middle part being high and the two sides being low. When it rains, rainwater will flow to both sides along the surface of the temperature control belt, avoiding the accumulation of rainwater in the middle part of the temperature control belt to press down the temperature control belt, thereby reducing the material fatigue damage of the temperature control belt.

[0048] In any season, when the temperature inside the box-type substation 1 is relatively high, the solar power generation device supplies power to the ventilation fan 9, the ventilation fan 9 starts to actively cool, discharges hot air inside the box-type substation 1, introduces external cold air, and further improves the temperature control effect.

[0049] The foregoing description of the specific exemplary embodiments of the present application is for the purpose of illustrating and describing, rather than limiting the application, and it will be apparent to those of ordinary skill in the art that many changes and modifications can be made to the embodiments with the foregoing teaching, notwithstanding what can be suggested above and although only a few of the exemplary embodiments of the present application have been described. Although the embodiments of the present application have been described, the specific embodiments are merely illustrative of the present application and are not intended to limit the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present application and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments without creative contribution after reading the specification, as long as they are within the scope of the claims of the present application.

Claims

1. A temperature control device for a box-type substation, characterized by comprising: The auxiliary temperature control device is installed on the box-type substation, and comprises a driven roller rotatably connected to the roof of the box-type substation, a driving roller, and a driving device for driving the driven roller and the driving roller to roll in the same direction, wherein the driven roller and the driving roller are wound with a temperature control belt, the temperature control belt comprises a refrigeration belt and a heat preservation belt connected to each other, the refrigeration belt comprises a radiative refrigeration film arranged on a surface layer, and the heat preservation belt comprises a photo-thermal conversion film arranged on a surface layer, the refrigeration belt is connected to the driven roller at an end thereof, and the heat preservation belt is connected to the driving roller at an end thereof.

2. The temperature control device for a box-type substation according to claim 1, wherein The driven roller and the driving roller are rotatably connected to mounting plates fixed at the roof of the box-type substation at both ends thereof.

3. A temperature control device for a box-type substation according to claim 2, characterized in that, The driving device comprises sprockets installed at both ends of the driven roller and the driving roller, and a chain is engaged with the sprockets on the same side; and one end of the driving roller is provided with a motor for driving the driving roller to rotate.

4. The temperature control device for a box-type substation according to claim 3, characterized in that, The driving device further comprises a housing for protecting the sprockets and the chain.

5. A temperature control device for a box-type substation according to claim 4, characterized in that, A support rod fixed to the roof of the box-type substation is further arranged between the driven roller and the driving roller, and the temperature control belt is arranged on the upper surface of the support rod; and the upper surface of the part of the temperature control belt between the driven roller and the driving roller is tangent to the lower surfaces of the driven roller and the driving roller.

6. The temperature control device for a box-type substation according to claim 1, wherein The active cooling device comprises an air exchange fan installed on the box-type substation, and the air exchange fan is electrically connected to a solar power generation device, and the solar power generation device comprises a solar panel.

7. The temperature control device for a box-type substation according to claim 1, characterized in that, The refrigeration belt and the heat preservation belt both comprise a flame-retardant fiber cloth, and the radiative refrigeration film and the photo-thermal conversion film are fixed to the fiber cloth.

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