CN205490090U - Heat abstractor is shielded to current conversion station control protection - Google Patents

Abstract

The utility model discloses a heat dissipation device for a control protection screen of a converter station. The device comprises a cabinet body, and a temperature controller is arranged in the cabinet body; a heat dissipation area is arranged on the top of the cabinet body; An air circulation fan, and a hot air exchanger connecting the heat dissipation area with the outside is arranged above the top of the cabinet. When in use, when the temperature inside the cabinet reaches the set value of the temperature controller, the air circulation fan starts, and the air circulation fan discharges the hot air in the cabinet to the outside of the cabinet through the hot air exchange area and the hot air exchanger, forming a negative pressure in the cabinet , draw the cold air outside the cabinet into the cabinet, complete the heat exchange inside and outside the cabinet, reduce the temperature inside the cabinet to the set value of the temperature controller, and stop the air circulation fan. The utility model has the advantages of simple structure, low cost investment, simple operation and high degree of automation, can significantly reduce the temperature inside the cabinet, prevent temperature warnings, is safe and reliable, and is easy to popularize.

Description

Cooling device for control protection screen of converter station

technical field

The utility model relates to the technical field of electric equipment maintenance, in particular to a cooling device for a control protection screen of a converter station.

Background technique

With the rapid development of my country's economy, a large number of domestic direct current transmission projects have been put into operation, and it is becoming more and more important to ensure the smooth operation of the direct current system. The high reliability and high availability pursued by the direct current system are not only the quality performance and structural stability of primary equipment, but also It needs to be guaranteed by the secondary control and protection system. The secondary system of the converter station is composed of a large number of electronic components, microprocessors, engineering hosts, cables and optical cables, etc., which are classified according to functions and functions, placed in different control and protection screen cabinets and run for a long time, and the control and protection devices run for a long time In a relatively airtight control and protection screen cabinet, the operation of the control and protection device generates a large amount of heat at the same time. The airflow and heat exchange in the screen cabinet are seriously insufficient. Fault. In actual work, the control protection screen does send out an alarm signal due to the high temperature in the cabinet, which may cause a single set of DC system protection devices to withdraw from operation, or cause the entire DC system to be blocked by single or double poles due to system malfunction, and seriously Threatening the safe and stable operation of the DC system, therefore, effective means of controlling and protecting the heat exchange of the screen cabinet must be adopted.

Utility model content

The purpose of this utility model is to solve the deficiency of the above-mentioned background technology, and provide a cooling device for the control protection screen of the converter station, so as to achieve the purpose of reducing the temperature in the control protection screen cabinet simply, effectively and sustainably.

The technical solution of the utility model is: a heat dissipation device for the control protection screen of a converter station, including a cabinet body, which is characterized in that: a temperature controller is provided in the cabinet body; a heat dissipation area is provided on the top of the cabinet body, corresponding to the In the heat dissipation area, an air circulation fan controlled by the temperature controller is arranged under the top of the cabinet, and a hot air exchanger is arranged above the top of the cabinet to communicate the heat dissipation area with the outside.

Further, a plurality of heat dissipation holes are provided in the heat dissipation area.

Further, several air circulation fans are provided, and several air circulation fans are fixedly installed on the lower part of the cabinet top corresponding to the heat dissipation area through installation brackets.

Further, the mounting bracket includes a mounting base plate provided with several cooling holes, the edge of the mounting base plate is vertically connected with a connecting plate, and the end of the connecting plate is bent horizontally outward to form a mounting plate, and the mounting plate is connected by a bolt fixed on the top of the cabinet.

Further, the hot air exchanger includes a hot air exchange plate surrounding an enclosed area, the hot air exchange plate is vertically arranged on the top of the cabinet, and the hot air exchange plate is provided with several cooling holes.

Preferably, the inner wall of the hot air exchange plate is provided with a dust-proof filter.

Preferably, an isolation baffle is provided on the top of the hot air exchange plate.

Further, a temperature indicator is arranged in the cabinet.

A method for using a cooling device for controlling a protective screen in a converter station, characterized in that it includes the following steps: when the temperature in the cabinet reaches the set value of the temperature controller, the air circulation fan is automatically started, and the air circulation fan is automatically activated. The fan exhausts the hot air in the cabinet to the outside of the cabinet through the hot air exchange area and the hot air exchanger, forming a negative pressure in the cabinet, sucking the cold air outside the cabinet into the cabinet, completing the heat exchange inside and outside the cabinet, and reducing the temperature inside the cabinet to the desired level. The setting value of the above-mentioned temperature controller, at this moment, the said air circulation fan stops automatically.

The heat dissipation device for the control protection screen of the converter station of the utility model has the advantages of simple structure, low cost investment, simple operation, high degree of automation, can significantly reduce the temperature inside the cabinet, prevent temperature warnings, is safe and reliable, and is easy to popularize.

Description of drawings

Fig. 1 is a structural schematic diagram of the cooling device for the control protection screen of the converter station;

Figure 2 is a schematic diagram of the installation of the air circulation fan in the cooling device of the control protection screen of the converter station;

Fig. 3 is a structural schematic diagram of the hot air exchanger in the cooling device of the control protection screen of the converter station;

Fig. 4 is a schematic diagram of the structure of the isolation baffle in the cooling device of the control protection screen of the converter station.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

Referring to Fig. 1, a cooling device for controlling and protecting screens of a converter station in this embodiment includes a cabinet body 1, and a temperature controller 9 is arranged in the cabinet body 1; a heat dissipation area 3 is arranged on the top of the cabinet body 1, corresponding to the heat dissipation area 3 An air circulation fan 2 controlled by a temperature controller 9 is arranged under the top of the cabinet 1, and a hot air exchanger is arranged above the top of the cabinet 1 to communicate the heat dissipation area 3 with the outside world.

The heat dissipation area 3 of this embodiment is provided with a plurality of heat dissipation holes, which are used for air circulation and heat exchange inside and outside the cabinet body 1; and several air circulation fans 2 are provided, and several air circulation fans 2 are fixedly installed in the cabinet through mounting brackets. The bottom of the top of the body corresponds to 3 heat dissipation areas. With reference to FIG. 2, the mounting bracket of this embodiment includes a mounting base plate 5 provided with several heat dissipation holes. The edge of the mounting base plate 5 is vertically connected with a connecting plate 10, and the end of the connecting plate 10 is horizontally outward. The installation board 11 is formed by bending, and the installation board 11 is fixed on the top of the cabinet body 1 by bolts. Referring to Fig. 3, the hot air exchanger of the present embodiment includes a hot air exchange plate 4 surrounding a closed area, the hot air exchange plate 4 is vertically arranged on the top of the cabinet body 1, and the hot air exchange plate 4 is provided with several cooling holes. The inner wall of the hot air exchange plate 4 is provided with a dust-proof filter 7 to prevent dust from entering the cabinet 1. Referring to Figure 4, an isolation baffle 6 is provided on the top of the hot air exchange plate 4 to prevent external water droplets and dust from entering In the cabinet 1; in this embodiment, a temperature indicator 8 is also provided in the cabinet 1 to display the internal temperature of the cabinet 1 in real time.

The installation method of the heat dissipation device for the control protection screen of the converter station in this embodiment is as follows: firstly open the cooling holes on the top of the cabinet body 1 in the heat dissipation area 3 according to the actual specifications; install the air circulation fan 2 on the top of the cabinet body 1 corresponding to the heat dissipation area 3 Below, install the hot air exchanger 4 above the top of the cabinet 1 corresponding to the heat dissipation area 3, and then install the dustproof filter 7 in the hot air exchanger 4 to prevent dust from entering the screen cabinet; the method of use is: when the cabinet When the temperature inside the body 1 reaches the set value of the temperature controller 9, the air circulation fan 2 starts automatically, and the air circulation fan 2 discharges the hot air in the cabinet to the outside of the cabinet body 1 through the hot air exchange area 3 and the hot air exchanger. Negative pressure is formed in the body 1, and the cold air outside the cabinet 1 is sucked into the cabinet 1, and the heat exchange inside and outside the cabinet 1 is completed, so that the temperature in the cabinet 1 is reduced to the set value of the temperature controller 9. At this time, the air circulation fan 2. Automatically stop to keep the temperature inside the cabinet 1 in line with the requirements for use.

The heat dissipation device for the control protection screen of the converter station of the utility model has the advantages of simple structure, low cost investment, simple operation, high degree of automation, can significantly reduce the temperature inside the cabinet, prevent temperature warnings, is safe and reliable, and is easy to popularize.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the structure of the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the technical solution of the present utility model.

Claims (8)

1. current conversion station controls a sealer heat abstractor, including cabinet (1), it is characterised in that: arrange in described cabinet (1) with temperature controller (9)；Described cabinet (1) top is provided with heat dissipation region (3), corresponding described heat dissipation region (3) place, being provided with the air circulation fan (2) controlled by described temperature controller (9) below described cabinet (1) top, described cabinet (1) over top is provided with the hot-air exchanger described heat dissipation region (3) being in communication with the outside.

Current conversion station the most according to claim 1 controls sealer heat abstractor, it is characterised in that: described heat dissipation region (3) place is provided with multiple louvre.

Current conversion station the most according to claim 1 controls sealer heat abstractor; it is characterized in that: described air circulation fan (2) is provided with several, several described air circulation fan (2) are fixedly mounted on corresponding described heat dissipation region (3) place below described cabinet top by mounting bracket.

Current conversion station the most according to claim 3 controls sealer heat abstractor; it is characterized in that: described mounting bracket includes being provided with the mounting base (5) of several louvres; described mounting base (5) edge-perpendicular connects connecting plate (10); the outside bending of described connecting plate (10) end horizontal forms installing plate (11), and described installing plate (11) is bolted on described cabinet (1) top.

Current conversion station the most according to claim 1 controls sealer heat abstractor; it is characterized in that: described hot-air exchanger includes surrounding into the hot-air power board (4) of closed area; described hot-air power board (4) is arranged vertically on described cabinet (1) top, and described hot-air power board (4) is provided with several louvres.

Current conversion station the most according to claim 5 controls sealer heat abstractor, it is characterised in that: described hot-air power board (4) inwall was provided with dustproof filter screen (7).

Current conversion station the most according to claim 6 controls sealer heat abstractor, it is characterised in that: described hot-air power board (4) top is provided with isolation plate washer (6).

Current conversion station the most according to claim 1 controls sealer heat abstractor, it is characterised in that: it is provided with heat indicator (8) in described cabinet (1).