CN221653014U - An SVG heat dissipation internal and external circulation switching device - Google Patents

Abstract

The utility model proposes an SVG heat dissipation internal and external circulation switching device, which relates to the field of SVG heat dissipation technology. It includes a regulating box, air circulation equipment, ventilation holes, baffles, temperature and humidity sensors, processing modules and drive components; the baffles are rotatably connected to the regulating box, the temperature and humidity sensors and air circulation equipment are installed in the regulating box, and the air circulation equipment, the temperature and humidity sensors and the drive module are electrically connected to the processing module; the baffles are used in conjunction with the ventilation holes, and the drive component is used to control the movement of the baffles. By adopting the utility model, the internal and external circulation heat dissipation can be adjusted according to the internal humidity of the SVG, so as to prevent the SVG from tripping due to a large load.

Description

An SVG heat dissipation internal and external circulation switching device

Technical Field

The present application relates to the technical field of SVG heat dissipation, and in particular to an SVG heat dissipation internal and external circulation switching device.

Background Art

SVG (Static Var Generator), also known as Advanced Static Var Compensator ASVC (Advanced Static Var Compensator) or Static Compensator STATCOM (Static Compensator), is a device that uses a self-commutated power semiconductor bridge converter to perform dynamic reactive power compensation. SVG is the most superior static reactive power compensation device so far.

SVG is based on a three-phase high-power voltage inverter. Its output voltage is connected to the system through a reactor, and maintains the same frequency and phase as the system voltage. The nature and capacity of the output power are determined by adjusting the relationship between its output voltage amplitude and the system voltage amplitude. When its amplitude is greater than the system voltage amplitude, capacitive reactive power is output, and when it is less than the system voltage amplitude, inductive reactive power is output.

The current situation is that the air humidity in high-altitude power stations is high, and the external circulation easily allows moisture to enter the SVG and cause it to trip. The internal circulation heat dissipation effect is not good, and it will also trip after reaching a certain load.

The above information disclosed in the above Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is already known to one of ordinary skill in the art.

Utility Model Content

The main purpose of the present application is to provide an SVG heat dissipation internal and external circulation switching device, which can adjust the internal and external circulation heat dissipation according to the internal humidity of the SVG to prevent the SVG from tripping due to a large load.

In order to solve the aforementioned technical problems, the present application provides an SVG heat dissipation internal and external circulation switching device, including a chassis body, an adjustment box, an air circulation device, a ventilation hole, a baffle, a temperature and humidity sensor, a processing module and a drive component; the adjustment box is connected to the chassis body, the ventilation hole is arranged in the adjustment box, the baffle is rotatably connected to the adjustment box, and the baffle is used in conjunction with the ventilation hole, the temperature and humidity sensor is installed in the chassis body, and the air circulation device is connected to the adjustment box; the air circulation device, the temperature and humidity sensor and the drive component are all electrically connected to the processing module, and the drive component is used to control the movement of the baffle.

Optionally, in some embodiments of the present invention, the adjustment box and the baffle are rotatably connected via a rotating shaft.

Optionally, in some embodiments of the present invention, the driving assembly includes a driving motor, a driving end of the driving motor is transmission-connected to the rotating shaft, and the driving motor is electrically connected to the processing module.

Optionally, in some embodiments of the present invention, the baffle includes a first plate body and a second plate body, the first plate body is provided with a limiting groove, and the second plate body is partially embedded in the limiting groove.

Optionally, in some embodiments of the present invention, the first plate body is installed with an electric telescopic rod, the telescopic end of the electric telescopic rod is connected to the second plate body, so that the second plate body slides relative to the first plate body, and the electric telescopic rod is electrically connected to the processing module.

Optionally, in some embodiments of the present invention, both sides of the second plate body are provided with mounting grooves along the extension direction thereof, and the electric telescopic rod is arranged in the mounting grooves.

Optionally, in some embodiments of the present invention, the adjustment box is installed with a mesh plate, and the mesh plate covers the ventilation holes.

Optionally, in some embodiments of the present invention, a dustproof net is provided between the chassis body and the adjustment box.

Optionally, in some embodiments of the present invention, a liquid level sensor is provided on the inner bottom surface of the chassis body, and the liquid level sensor is electrically connected to the processing module.

Optionally, in some embodiments of the present invention, the above also includes a ventilation chamber, the ventilation chamber is located underground, and the chassis body and the adjustment box are both connected to the ventilation chamber.

An embodiment of the present application proposes an SVG heat dissipation internal and external circulation switching device, which includes a chassis body, an adjustment box, an air circulation device, a ventilation hole, a baffle, a temperature and humidity sensor, a processing module and a drive component; the adjustment box is connected to the chassis body, the ventilation hole is arranged in the adjustment box, the baffle is rotatably connected to the adjustment box, and the baffle is used in conjunction with the ventilation hole, the temperature and humidity sensor is installed in the chassis body, and the air circulation device is connected to the adjustment box; the air circulation device, the temperature and humidity sensor and the drive component are all electrically connected to the processing module, and the drive component is used to control the movement of the baffle.

In this embodiment, an air circulation device is installed on the top of the regulating box. The air outlet of the air circulation device is connected to the regulating box from above, and the regulating box is connected to the chassis body to realize the internal circulation of air in the chassis body. A temperature and humidity sensor is installed inside the chassis body to detect the temperature and humidity inside the regulating box, and the detected temperature and humidity data signals are transmitted to the processing module so that the processing module can process other components. A ventilation hole is provided on one side of the regulating box to realize the external circulation of the gas in the regulating box. A baffle and a drive assembly are installed inside the regulating box to control the adjustment of the sealing of the regulating box.

Due to the setting of the processing module, by building an existing program into the processing module, when the temperature and humidity sensor detects that the humidity inside the chassis body exceeds a preset threshold, the processing module controls the driving component to drive the shaft to rotate, so that the baffle is placed vertically, thereby isolating the internal chamber of the chassis body from the external environment to prevent external humid air from entering.

On the contrary, when the humidity inside the chassis body is lower than the preset threshold, the internal chamber of the chassis body is controlled to communicate with the external environment, so that external humid air can enter for adjustment, thereby preventing the SVG from tripping due to heavy load.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an SVG heat dissipation internal and external circulation switching device provided by an embodiment of the utility model;

FIG2 is a cross-sectional view of an SVG heat dissipation internal and external circulation switching device provided by an embodiment of the utility model;

FIG. 3 is a side view of a baffle provided in an embodiment of the utility model.

Icons: 1-regulating box, 2-air circulation equipment, 3-ventilation hole, 4-temperature and humidity sensor, 5-driving motor, 6-electric telescopic rod, 7-first plate, 8-second plate, 9-installation slot, 10-rotating shaft, 11-mesh plate, 12-liquid level sensor, 13-chassis body, 14-SVG equipment, 15-ventilation chamber, 16-dust net, 17-exchange port.

The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

1-2, FIG1 is a schematic structural diagram of an SVG heat dissipation internal and external circulation switching device provided in an embodiment of the present utility model; FIG2 is a cross-sectional view of an SVG heat dissipation internal and external circulation switching device provided in an embodiment of the present utility model.

An embodiment of the present application provides an SVG heat dissipation internal and external circulation switching device, including a chassis body 13, an adjustment box 1, an air circulation device 2, ventilation holes 3, a baffle, a temperature and humidity sensor 4, a processing module and a driving component; the adjustment box 1 is connected to the chassis body 13, the ventilation holes 3 are arranged in the adjustment box 1, the baffle is rotatably connected to the adjustment box 1, and the baffle is used in conjunction with the ventilation holes 3, the temperature and humidity sensor 4 is installed in the chassis body 13, and the air circulation device 2 is connected to the adjustment box 1; the air circulation device 2, the temperature and humidity sensor 4 and the driving component are all electrically connected to the processing module, and the driving component is used to control the movement of the baffle.

In this embodiment, an air circulation device 2 is installed inside the regulating box 1 to realize the air circulation flow inside the regulating box 1 and the chassis body 13; a temperature and humidity sensor 4 is installed inside the chassis body 13 to detect the temperature and humidity inside the chassis body 13, and the detected temperature and humidity data signals are transmitted to the processing module so that the processing module can process other components; ventilation holes 3 are provided on one side of the regulating box 1 to realize the external circulation of the gas inside the regulating box 1 and the chassis body 13; a baffle and a drive assembly are installed inside the regulating box 1 to control the sealing adjustment of the regulating box 1 and the chassis body 13.

Specifically, the chassis body 13 of the present embodiment is installed on the concrete floor, the SVG device 14 is installed in the chassis body 13, and several adjustment boxes 1 are installed on the side of the chassis body 13. A larger ventilation chamber 15 is provided 15 cm below the ground. The bottom of the chassis body 13 and then the bottoms of several adjustment boxes 1 are connected to the ventilation chamber 15, thereby realizing the internal circulation of air in the chassis body 13 to achieve the cooling function of the SVG device 14.

Furthermore, a mesh plate 11 covering the ventilation hole 3 is provided around the ventilation hole 3 of the present embodiment, so as to prevent foreign matter outside the regulating box 1 from entering the regulating box 1 when the baffle is opened. At the same time, the regulating box 1 and the mesh plate 11 are detachably connected by bolts, so that the mesh plate 11 can be easily installed on the regulating box 1, or the mesh plate 11 can be removed from the regulating box 1 for cleaning or maintenance. A dustproof net 16 is provided at the bottom of the chassis body 13 and the position where the ventilation chamber 15 is connected, so as to further prevent external impurities from entering the chassis body 13.

As an optional method, an exchange port 17 is provided between the chassis body 13 and the regulating box 1 of this embodiment, and the exchange port 17 is provided at one end close to the air circulation device 2.

As an optional method, the temperature and humidity sensor 4 of this embodiment is a signal smoke temperature and humidity detection instrument, for example, a ceiling-mounted signal smoke temperature and humidity detection instrument manufactured by Hongsheng Hi-Tech and model number HSJ-882-Y-WS. The regulating box 1 and the mesh plate 11 of this embodiment can be made of stainless steel. The air circulation device 2 can use a circulating fan.

As an optional manner, a liquid level sensor 12 is provided on the inner bottom surface of the chassis body 13 of this embodiment, and the liquid level sensor 12 is electrically connected to the processing module.

A liquid level sensor 12 is provided on the bottom surface of the chassis body 13 to detect whether there is water accumulation on the bottom surface of the chassis body 13, and an alarm value is preset in the processing module. When the water accumulation on the bottom surface of the chassis body 13 exceeds a certain range and may cause certain safety hazards to the SVG device 14, the processing module sends an alarm signal to the control terminal, so that the staff can repair it. The chassis body 13 is a rectangular parallelepiped structure, which is convenient for several SVG chassis to be installed side by side.

As an optional method, the processing module of this embodiment can use the AT89S51 chip. AT89S51 is a low-power, high-performance CMOS 8-bit processor. The chip integrates a general-purpose 8-bit central processing unit and an ISP Flash storage unit, which can process the received information in a timely and effective manner. It should be noted that the processing module can be an integrated circuit chip with signal processing capabilities. The processing module can be a general-purpose processor, including a central processing unit, a network processor, etc.; it can also be a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. It is not limited to the AT89S51 chip in this embodiment.

Refer to FIG. 3 , which is a side view of a baffle provided in an embodiment of the present utility model.

The driving assembly of this embodiment includes a driving motor 5, a driving end of the driving motor 5 is transmission-connected to the rotating shaft 10, and the driving motor 5 is electrically connected to the processing module

During use, the driving motor 5 drives the rotating shaft 10 to rotate to adjust the inclination angle of the baffle and the bottom of the regulating box 1. When the temperature and humidity sensor 4 detects that the humidity in the chassis body 13 exceeds the preset threshold, the processing module controls the driving motor 5 to drive the rotating shaft 10 to rotate, so that the baffle is placed vertically, thereby isolating the internal chamber of the regulating box 1 from the external environment to prevent external humid air from entering. Through the air circulation device 2, the air is blown downward to allow the air to flow from the regulating box 1 into the underground ventilation chamber 15, and then into the chassis body 13, and finally into the regulating box 1 from the exchange port 17 between the chassis body 13 and the regulating box 1 to achieve internal circulation of the equipment.

Similarly, when the temperature and humidity sensor 4 detects that the humidity in the regulating box 1 is lower than the preset threshold, the processing module controls the drive motor 5 to drive the shaft 10 to rotate in the opposite direction, so that the baffle is knocked down, thereby connecting the internal chamber of the regulating box 1 with the external environment to facilitate the entry of external humid air. Specifically, the air circulation device 2 is used to blow air downward so that the external air enters the regulating box 1 from the ventilation hole 3, and the air exchange port 17 of the chassis body 13 enters the regulating box, and the air flow is blown from the regulating box 1 into the underground ventilation chamber 15, and then enters the chassis body 13, so as to realize the external circulation of the equipment.

It should be noted that in this embodiment, using humidity as a threshold is only a preferred method of this embodiment. In other embodiments, other judgment criteria such as power generation load or temperature may be used to make a comprehensive judgment on whether to open the damper.

Furthermore, the baffle of this embodiment includes a first plate body 7 and a second plate body 8, the first plate body 7 is provided with a limiting groove, the second plate body 8 is partially embedded in the limiting groove, the first plate body 7 is installed with an electric telescopic rod 6, the telescopic end of the electric telescopic rod 6 is connected to the second plate body 8, so that the second plate body 8 slides relative to the first plate body 7, the electric telescopic rod 6 is electrically connected to the processing module, and installation grooves 9 are provided on both sides of the second plate body 8 along its extension direction, and the electric telescopic rod 6 is arranged in the installation groove 9.

By providing the first plate body 7 and the second plate body 8, the area required for the rotating baffle to rotate during use is reduced, thereby saving space.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application.

Claims (10)

1. An SVG heat dissipation internal and external circulation auto-change over device, its characterized in that: the device comprises a case body, an adjusting case, air circulation equipment, an air vent, a baffle, a temperature and humidity sensor, a processing module and a driving assembly;

The air circulation device comprises a case body, a baffle, a temperature and humidity sensor, an air circulation device and a temperature and humidity sensor, wherein the case body is communicated with the case body, the air vent is arranged in the case body, the baffle is rotationally connected with the case body and is matched with the air vent for use, the temperature and humidity sensor is arranged in the case body, and the air circulation device is communicated with the case body;

The air circulation equipment, the temperature and humidity sensor and the driving assembly are electrically connected with the processing module, and the driving assembly is used for controlling the baffle to move.

2. The SVG heat dissipation internal and external circulation switching device according to claim 1, wherein: the regulating box is rotationally connected with the baffle through a rotating shaft.

3. The SVG heat dissipation inner and outer circulation switching device according to claim 2, wherein: the driving assembly comprises a driving motor, the driving end of the driving motor is in transmission connection with the rotating shaft, and the driving motor is electrically connected with the processing module.

4. The SVG heat dissipation internal and external circulation switching device according to claim 1, wherein: the baffle comprises a first plate body and a second plate body, wherein the first plate body is provided with a limit groove, and the second plate body is partially embedded in the limit groove.

5. The SVG heat dissipation inner and outer circulation switching device of claim 4, wherein: the first plate body is provided with an electric telescopic rod, the telescopic end of the electric telescopic rod is connected with the second plate body, so that the second plate body slides relative to the first plate body, and the electric telescopic rod is electrically connected with the processing module.

6. The SVG heat dissipation inner and outer circulation switching device of claim 5, wherein: the second plate body both sides all are equipped with the mounting groove along its extending direction, electric telescopic handle set up in the mounting groove.

7. The SVG heat dissipation internal and external circulation switching device according to claim 1, wherein: the regulating box is provided with a mesh plate, and the mesh plate covers the ventilation holes.

8. The SVG heat dissipation inner and outer circulation switching device of claim 7, wherein: and a dustproof net is arranged between the case body and the adjusting box.

9. The SVG heat dissipation internal and external circulation switching device according to claim 1, wherein: the bottom surface inside the case body is provided with a liquid level sensor, and the liquid level sensor is electrically connected with the processing module.

10. The SVG heat dissipation internal and external circulation switching device according to claim 1, wherein: the air exchange chamber is located underground, and the case body and the adjusting box are communicated with the air exchange chamber.