Fully enclosed box-type substation and dust prevention, dehumidification and cooling methods

Abstract

The present invention relates to a fully enclosed box-type substation and a dust prevention, dehumidification and cooling method, comprising a box-type substation and a controller, wherein a ventilation and heat dissipation channel having a length consistent with the eaves is provided under the eaves of the box-type substation, the ventilation and heat dissipation channel is communicated with the inside of the box-type substation, a heat dissipation grille is provided at the bottom of the ventilation and heat dissipation channel, the heat dissipation grille is synchronously opened or closed by a synchronous driving mechanism, the signal input end of the synchronous driving mechanism is connected to the signal output end of the controller through a connection line, and multiple axial flow fans are distributed in the eaves heat dissipation grille channel, and whether the axial flow fans work or not is controlled by the controller through a signal line. Advantages: First, a ventilation and heat dissipation channel having a length relatively consistent with the eaves is provided under the eaves of the box-type substation, which not only avoids rainwater from pouring in, but also dust from being sucked in, thereby ensuring the safe operation of the box-type substation; second, the heat dissipation grille design at the bottom of the ventilation and heat dissipation channel realizes that the controller automatically monitors the temperature and humidity in the box, automatically forces the discharge, and automatically closes, so that external dust cannot enter the box, thereby ensuring that the box-type substation is always in a relatively dust-free, constant temperature, and constant humidity working state.

Description

Technical Field

[0001] The present invention relates to a fully enclosed box-type substation and a dustproof, dehumidifying and cooling method, which can prevent rain and dust from entering the box, keep the box-type substation in a dustproof, constant temperature environment from beginning to end, and prevent external damage and theft, and belongs to the field of box-type substation manufacturing. Background Art

[0002] Box-type substation, also known as prefabricated substation or prefabricated substation, is a kind of outdoor compact distribution equipment that integrates high-voltage switchgear, distribution transformer and low-voltage distribution device according to a certain wiring scheme, that is, it organically combines transformer step-down, low-voltage distribution and other functions and installs them in a steel structure box. Since the box-type substation is used outdoors, it has relatively high requirements for the protection level, heat dissipation and safety of the box-type substation. However, in the structural design of the existing box-type substation, the heat dissipation window is generally opened on the door panel of the box-type substation, which is embedded in the ventilation grille frame ( Figure 5 ), the problems it brings are: since the ventilation grille frame is directly installed on the door panel, it is not only easy to be splashed with rain and inhaled with dust, which seriously affects the safe operation of the box-type substation, but also the temperature and humidity in the box can only be controlled by the ventilation grille itself, so that the temperature and humidity in the box cannot be effectively controlled at all, which directly affects the operating life of the box-type substation; secondly, since the wind grille frame is directly installed on the door panel, it is completely within reach and is easily damaged and stolen by external forces. Therefore, the national standard protection level of this type of box-type substation is IP4X or below. Summary of the invention

[0003] Design purpose: Based on the background technology, a fully enclosed box-type substation and dustproof, dehumidification and cooling method are designed, which can prevent rain and dust from entering the box, keep the box-type substation in a dustproof, constant temperature environment from beginning to end, and at the same time avoid external damage and theft.

[0004] Design scheme: In order to achieve the design purpose of the present invention. In terms of structural design, the present invention has the following features: 1. A ventilation and heat dissipation channel with the same length as the eaves is set under the eaves of the box-type substation, which is one of the technical features of the present invention. The purpose of this design is that since the ventilation and heat dissipation channel is connected to the inside of the box-type substation, and multiple axial flow fans are built in the front, middle and rear of the eaves heat dissipation grid channel, and a heat dissipation grid with automatic opening and closing with temperature control and humidity control is set at the bottom of the ventilation and heat dissipation channel, the heat dissipation grid and the axial flow fan are controlled by the temperature controller and the humidity controller to control whether the axial flow fan works or not, and whether the heat dissipation grid is opened or closed, so that when the temperature generated by the operation of the electrical components inside the box-type substation or the humidity inside the box exceeds the temperature value set by the controller, the controller instructs the axial flow fan to work and open the heat dissipation grid at the same time, forcing the temperature or humidity in the box to be effectively discharged, so that it reaches the stable value range set by the temperature or humidity inside the box-type substation, the controller instructs the heat dissipation grid to close, and the axial flow fan is powered off and stopped working, thereby ensuring the constant temperature, constant humidity, normal and reliable operation of the box-type substation. Secondly, when the heat sink of the box-type substation is under the eaves of the box-type substation, it can effectively prevent rainwater from pouring in, splashing in, or water from spraying, and it is also difficult for external dust to enter, because the heat sink is closed at this time, forming a closed box cavity, which greatly improves the protection level of the box-type substation. 2. The design of the anti-sticking layer on the blade surface in the heat sink is the second technical feature of the present invention. The purpose of this design is that there are multiple blades constituting the heat sink, and the blades are in contact and closed when closed. Therefore, whether the blades can be ensured not to be dusty or wet is the key to ensuring good matching between the blades. The present invention can ensure that the blades are in contact and closed when closed by performing anti-sticking and waterproof treatment on the blades, and can effectively prevent adhesion between the blades.

[0005] Technical Solution 1: A fully enclosed box-type substation, including a box-type substation and a controller. A ventilation and heat dissipation channel with the same length as the eaves is provided under the eaves of the box-type substation. The ventilation and heat dissipation channel is connected to the interior of the box-type substation. A heat dissipation grille is provided at the bottom of the ventilation and heat dissipation channel. The heat dissipation grille is synchronously opened or closed by a synchronous driving mechanism. The signal input end of the synchronous driving mechanism is connected to the signal output end of the controller through a connecting line. Multiple axial flow fans are distributed in the eaves heat dissipation grille channel, and whether the axial flow fans are working or not and whether the heat dissipation grille is opened or closed are controlled by the controller through signal lines.

[0006] Technical Solution 2: A dust prevention, dehumidification and cooling method for a fully enclosed box-type substation. When the temperature or humidity detected by the temperature sensor or humidity sensor in the fully enclosed box-type substation reaches the lower limit of the temperature or humidity built into the controller, the temperature controller and humidity controller in the controller do not work, and the heat dissipation grille on the ventilation and heat dissipation channel is closed. The entire box-type substation is in a fully enclosed state, and external dust cannot enter the box; when the temperature sensor or humidity sensor in the fully enclosed box-type substation detects that the temperature or humidity in the fully enclosed box-type substation reaches the upper limit of the temperature or humidity built into the controller, the controller When the temperature controller or humidity controller instructs the axial flow fan to work, it instructs the synchronous drive mechanism to open the heat dissipation grille. The heat or moisture in the fully enclosed box-type substation is discharged outside the box under the forced drive of the axial flow fan. When the temperature or humidity in the fully enclosed box-type substation drops to the lower limit of the built-in temperature or humidity of the controller, the temperature controller or humidity controller in the controller instructs the synchronous drive mechanism to close the heat dissipation grille and cut off the power supply of the axial flow fan. The entire box-type substation is in a fully enclosed state and external dust cannot enter the box. This cycle keeps the fully enclosed box-type substation in a dust-proof, constant temperature and constant temperature working environment from beginning to end.

[0007] Compared with the background technology, the present invention has the following advantages: first, a ventilation and heat dissipation channel with a length relatively consistent with the eaves is provided under the eaves of the box-type substation, which not only avoids rainwater from pouring in, but also avoids the inhalation of dust, thus ensuring the safe operation of the box-type substation; second, the heat dissipation grid design at the bottom of the ventilation and heat dissipation channel enables the controller to automatically monitor the temperature and humidity in the box, automatically force discharge, and automatically close, so that external dust cannot enter the box, thus ensuring that the box-type substation is always in a relatively dust-free, constant temperature and constant humidity working state; third, the ventilation and heat dissipation channel design relatively consistent with the eaves makes it inaccessible to human hands, thus ensuring safety and avoiding damage and theft by external forces; fourth, the service life of the box-type substation is greatly improved, and the reliability of use is fundamentally improved and improved, and its test indicators are as follows:

[0008] . BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of a fully enclosed box-type substation.

[0010] Figure 2 yes Figure 1 Schematic diagram of temperature heat dissipation principle.

[0011] Figure 3 It is a schematic diagram of the worm gear synchronous drive mechanism.

[0012] Figure 4 It is a schematic diagram of the synchronous drive mechanism of the synchronous belt and pulley.

[0013] Figure 5It is a schematic diagram of the background technology. DETAILED DESCRIPTION

[0014] Example 1: Refer to the attached Figure 1 and 2 A fully enclosed box-type substation includes a box-type substation and a controller. A ventilation and heat dissipation channel 1 with a length relatively consistent with the eaves is provided under the eaves of the box-type substation. The ventilation and heat dissipation channel is connected to the inside of the box-type substation. A heat dissipation grille 2 is provided at the bottom of the ventilation and heat dissipation channel. The heat dissipation grille 2 is synchronously opened or closed by a synchronous drive mechanism. The signal input end of the synchronous drive mechanism is connected to the signal output end of the controller through a connection line. A plurality of axial flow fans 3 are distributed in the eaves heat dissipation grille channel, and the operation of the axial flow fans 3 and the opening or closing of the heat dissipation grille 2 are controlled by the controller 4 through a signal line. The controller is built with a temperature controller and a humidity controller. The signal output ends of the temperature controller and the humidity controller are connected to the signal input end of the axial flow fan 3 on one side and to the signal input end of the servo motor in the synchronous drive mechanism on the other side. A temperature probe and a humidity probe are provided in the box-type substation. The signal output ends of the temperature probe and the temperature and humidity probe are connected to the signal input ends of the temperature controller and the humidity controller in the controller through a connection line. The signal output ends of the temperature controller and the humidity controller are connected to the power input end of the axial flow fan 3 and the signal input end of the servo motor in the synchronous drive mechanism through a relay.

[0015] It should be noted that: the controller has a built-in temperature controller and a humidity controller, or the controller may have a built-in temperature control circuit and a humidity control circuit. The temperature control circuit and the humidity control circuit output instructions through an actuator (such as a relay, but not limited to this). Their structures are all prior arts. The present invention will only be used as a known technology here, so it will not be described here.

[0016] The heat dissipation grille 2 is a shutter structure, and the two shafts of the plurality of shutter blades 8 in the shutter structure are positioned by the shaft sleeve 7 and the worm gear 6 located on the shaft is driven by the motor 9 to drive the worm 5 to drive the worm gear to rotate synchronously. Figure 3 .

[0017] The heat dissipation grille 2 is a louver structure, and the two shafts of the plurality of louver blades 8 constituting the louver structure are positioned by the shaft sleeve 7 and the synchronous pulley 11 located on the shaft is driven by the motor 9 to rotate synchronously through the synchronous belt 10, such as Figure 4 .

[0018] Embodiment 2: Based on Embodiment 1, a dust prevention, dehumidification and cooling method for a fully enclosed box-type substation is provided. When the temperature or humidity detected by the temperature sensor or humidity sensor in the fully enclosed box-type substation reaches the lower limit of the temperature or humidity built into the controller, the temperature controller and humidity controller in the controller do not work, the heat dissipation grille 2 located on the ventilation and heat dissipation channel is closed, and the entire box-type substation is in a fully enclosed state, and external dust cannot enter the box; when the temperature sensor or humidity sensor in the fully enclosed box-type substation detects that the temperature or humidity in the fully enclosed box-type substation reaches the upper limit of the temperature or humidity built into the controller, the controller When the temperature controller or humidity controller in the controller instructs the axial flow fan 3 to work, it instructs the synchronous driving mechanism to open the heat dissipation grille 2. The heat or moisture in the fully enclosed box-type substation is discharged to the outside of the box under the forced drive of the axial flow fan 3. When the temperature or humidity in the fully enclosed box-type substation drops to the lower limit of the built-in temperature or humidity of the controller, the temperature controller or humidity controller in the controller instructs the synchronous driving mechanism to close the heat dissipation grille 2 and cut off the power supply of the axial flow fan 3. The entire box-type substation is in a fully enclosed state and external dust cannot enter the box. This cycle keeps the fully enclosed box-type substation in a dust-proof, constant temperature and constant temperature working environment from beginning to end.

[0019] It should be understood that although the above embodiments provide a relatively detailed textual description of the design ideas of the present invention, these textual descriptions are only simple textual descriptions of the design ideas of the present invention, rather than limitations on the design ideas of the present invention. Any combination, addition or modification that does not exceed the design ideas of the present invention shall fall within the protection scope of the present invention.

Claims

1. A fully enclosed box-type substation, including a box-type substation and a controller, characterized in that: A ventilation and heat dissipation channel (1) having a length relatively consistent with that of the eaves is provided under the eaves of the box-type substation, the ventilation and heat dissipation channel is communicated with the interior of the box-type substation, a heat dissipation grille (2) is provided at the bottom of the ventilation and heat dissipation channel, the heat dissipation grille (2) is synchronously opened or closed by a synchronous drive mechanism, the signal input end of the synchronous drive mechanism is connected to the signal output end of the controller via a wire, a plurality of axial flow fans (3) are distributed in the eaves heat dissipation grille channel, and whether the axial flow fans (3) work or not and whether the heat dissipation grille (2) is opened or closed are controlled by the controller (4) via a signal line; the heat dissipation grille (2) is a louver structure, the two shafts constituting the plurality of louver blades in the louver structure are positioned by shaft sleeves and the worm gear on the shaft is driven by a motor to drive the worm gear to rotate synchronously, or the two shafts constituting the plurality of louver blades in the louver structure are positioned by shaft sleeves and the synchronous pulley on the shaft is driven by a motor to rotate synchronously, the louver blades are subjected to anti-sticking and waterproof treatment to ensure that the louver blades are in contact with each other when closed, thereby effectively preventing the louver blades from sticking to each other; The dust prevention, dehumidification and cooling method of the fully enclosed box-type substation is as follows: when the temperature or humidity detected by the temperature sensor or humidity sensor in the fully enclosed box-type substation reaches the lower limit of the temperature or humidity built into the controller, the temperature controller and humidity controller in the controller do not work, the heat dissipation grille (2) located on the ventilation and heat dissipation channel is closed, and the entire box-type substation is in a fully enclosed state, and external dust cannot enter the box; when the temperature sensor or humidity sensor in the fully enclosed box-type substation detects that the temperature or humidity in the fully enclosed box-type substation reaches the upper limit of the temperature or humidity built into the controller, the temperature controller or humidity controller in the controller instructs the axial flow fan (3) to work and instructs the synchronous driving mechanism to open the heat dissipation grille (2), and the heat or moisture in the fully enclosed box-type substation is forced to be discharged outside the box by the axial flow fan (3). When the temperature or humidity in the fully enclosed box-type substation drops to the lower limit of the temperature or humidity built into the controller, The temperature controller or humidity controller in the controller instructs the synchronous drive mechanism to close the heat sink (2) and simultaneously cut off the power supply of the axial flow fan (3), so that the entire box-type substation is in a fully enclosed state and external dust cannot enter the box; such a cycle ensures that the fully enclosed box-type substation is in a dustproof, constant temperature and constant humidity working environment from beginning to end, and can also avoid external damage and theft; the controller is built with a temperature controller and a humidity controller, and the signal output ends of the temperature controller and the humidity controller are connected to the signal input end of the axial flow fan (3) and the signal input end of the servo motor in the synchronous drive mechanism; the box-type substation is provided with a temperature probe and a humidity probe, and the signal output ends of the temperature probe and the temperature and humidity probe are connected to the signal input ends of the temperature controller and the humidity controller in the controller through a wire, and the signal output ends of the temperature controller and the humidity controller are connected to the power input end of the axial flow fan (3) and the signal input end of the servo motor in the synchronous drive mechanism through a relay.

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