Micro-positive pressure control device of electromagnetic station

Abstract

The utility model relates to the technical field of electromagnetic station cooling, and aims to provide an electromagnetic station micro-positive pressure control device which comprises a frequency converter chamber installed on a cable trench, and a plurality of frequency conversion control cabinets connected with cables in the cable trench are arranged in the frequency converter chamber. The two outer side walls, corresponding to the frequency conversion control cabinet, of the frequency converter chamber are each provided with a plurality of dustproof air purifying fans, the bottoms of the side walls, corresponding to the dustproof air purifying fans, of the frequency conversion control cabinet are provided with air inlet grilles, and the dustproof air purifying fans enable the interior of the chamber to be kept in a micro-positive pressure state through air inlet. According to the utility model, cold air is blown into the high-voltage frequency conversion chamber by adopting the dustproof air purifier, cold and hot air exchange can be carried out on electrical elements in the high-voltage frequency conversion chamber, and the exchanged hot air is exhausted by the exhaust pipe, so that the indoor environment is kept in a micro-positive pressure state; the stability of indoor temperature can be kept through the air conditioning unit, and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic station cooling, in particular to a micro-positive pressure control device for an electromagnetic station. Background Art

[0002] High-voltage inverters are large electronic devices that consume a lot of energy during operation. All the energy consumed by the inverter is converted into heat, which is carried out of the inverter body by the inverter's cooling fan. Since the absolute value of this heat is large, the heat generally accounts for 4% of the equipment power. If measures are not taken to properly handle it, the operating environment temperature of the inverter may be too high, affecting the normal operation of the inverter.

[0003] The high-voltage inverter room currently uses duct heat dissipation to cool the inverter, creating a negative pressure environment in the inverter room. If the outdoor environment is good, duct heat dissipation is undoubtedly the best choice, but there is a dusty area around the inverter room, and dust can easily enter the inverter room through the duct. Excessive dust content leads to increased inverter maintenance and untimely maintenance. At the same time, dust will adhere to electronic components and circuit boards, especially coal powder dust, which will cause the equipment to have poor heat dissipation, resulting in a decrease in life and reliability. Even worse, it will directly cause electrical components to short-circuit, seriously affecting the safe operation of the high-voltage inverter. Utility Model Content

[0004] The utility model aims to provide a micro-positive pressure control device for an electromagnetic station to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A micro-positive pressure control device for an electromagnetic station includes a frequency converter room installed on a cable trench, wherein a plurality of frequency converter control cabinets connected to cables in the cable trench are arranged inside the frequency converter room, a plurality of dust-proof and clean fans are arranged on the two outer side walls of the frequency converter room corresponding to the frequency converter control cabinets, and an air inlet grille is provided at the bottom of the side wall corresponding to the frequency converter control cabinet and the dust-proof and clean fan, and the dust-proof and clean fan keeps the room in a micro-positive pressure state by taking in air.

[0007] A dust filter is provided on the air inlet of the dust-proof and purifying fan.

[0008] The dust filter is detachably mounted on the air inlet of the dust-proof air purifier by means of threads or snap-fitting.

[0009] An air conditioning unit is also provided on the inner top of the frequency converter room, and the air conditioning unit is used to keep the indoor temperature constant.

[0010] A cooling fan is arranged at the top of the frequency conversion control cabinet, an exhaust duct is installed on the air outlet of the cooling fan, and the outlet end of the exhaust duct penetrates the side wall of the frequency converter room and is located outside the frequency converter room.

[0011] The exhaust pipe is provided with a regulating valve, which is used for opening and closing the exhaust pipe.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] By using a dust-proof and clean fan to blow cold air into the high-voltage frequency conversion room, the electrical components in the high-voltage frequency conversion room can be replaced with hot and cold air. The replaced hot air is discharged through the exhaust duct, so that the indoor environment maintains a slightly positive pressure state. At the same time, an air-conditioning unit is installed indoors. The air-conditioning unit can maintain the stability of the indoor temperature and ensure stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0015] Serial numbers and names of the accompanying drawings: frequency converter room 1, frequency conversion control cabinet I 2, cable trench 3, frequency conversion control cabinet II 4, dust-proof and clean fan 5, exhaust duct 6, cooling fan 7, air conditioning unit 8, regulating valve 9. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 As shown, the electromagnetic station micro-positive pressure control device described in the utility model includes a frequency converter room 1 installed on the cable trench 3, and a plurality of frequency converter control cabinets connected to the cables in the cable trench 3 are arranged inside the frequency converter room 1. The frequency converter control cabinets are located directly above the cable trench 3.

[0019] Several dust-proof and purifying fans 5 are installed on the two outer walls of the inverter room 1. The dust-proof and purifying fans 5 are used to blow cold air into the room to lower the indoor temperature. At the same time, the room is kept in a slightly positive pressure state through the air intake. Under the positive pressure environment, a wind wall can be formed in the room to effectively prevent dust from entering the room, which helps to keep the room clean and tidy, reduce the frequency of indoor cleaning, and reduce the workload of employees; a dust filter is provided on the air inlet of the dust-proof and purifying fan 5, and the dust filter is detachably installed on the air inlet of the dust-proof and purifying fan 5 by threading or snap-on. The use of the dust filter can reduce the external dust from entering the room. At the same time, combined with the slightly positive pressure state in the room, it can effectively reduce the accumulation of dust on electronic components and circuit boards, which helps to increase the service life of various electrical components; at the same time, the dust filter adopts a detachable connection method, which is convenient for adaptive adjustment according to the actual environment.

[0020] An air inlet grille is provided at the bottom of the side wall of the frequency conversion control cabinet corresponding to the dust-proof and purifying fan 5, and a cooling fan 7 is arranged at the top of the frequency conversion control cabinet. An exhaust duct 6 is installed on the air outlet of the cooling fan 7. The outlet end of the exhaust duct 6 passes through the side wall of the frequency converter room 1 and is located outside the frequency converter room 1. A regulating valve 9 is provided on the exhaust duct 6. The regulating valve 9 is used for opening and closing the exhaust duct 6. The heat inside the frequency conversion control cabinet will be discharged to the outside of the frequency conversion room 1 through the cooling fan 7 and the exhaust duct 6.

[0021] An air conditioning unit 8 is also provided at the inner top of the inverter room 1. The air conditioning unit 8 includes an air conditioner and a temperature sensor. The temperature sensor is used to monitor the indoor temperature. The air conditioning unit 8 keeps the internal temperature of the inverter room 2 constant through the temperature sensor.

Claims

1. An electromagnetic station micro-positive pressure control device, comprising a frequency converter chamber (1) installed on a cable trench (3), characterized in that: The inverter room (1) is provided with a plurality of frequency conversion control cabinets connected to the cables in the cable trench (3), and a plurality of dust-proof and clean fans (5) are provided on the two outer side walls of the inverter room (1) corresponding to the frequency conversion control cabinets. The bottom of the side walls corresponding to the frequency conversion control cabinets and the dust-proof and clean fans (5) are provided with air inlet grilles, and the dust-proof and clean fans (5) keep the room in a slightly positive pressure state by inletting air.

2. The electromagnetic station micro-positive pressure control device according to claim 1, characterized in that: A dust filter is provided on the air inlet of the dust-proof and purifying fan (5).

3. The electromagnetic station micro-positive pressure control device according to claim 2, characterized in that: The dust filter is detachably mounted on the air inlet of the dust-proof air purifier (5) by means of threads or snap-fitting.

4. The electromagnetic station micro-positive pressure control device according to claim 1, characterized in that: An air conditioning unit (8) is also provided on the inner top of the frequency converter room (1), and the air conditioning unit (8) is used to maintain a constant indoor temperature.

5. The electromagnetic station micro-positive pressure control device according to claim 1, characterized in that: A cooling fan (7) is arranged at the top of the frequency conversion control cabinet, an exhaust pipe (6) is installed on the air outlet of the cooling fan (7), and the outlet end of the exhaust pipe (6) passes through the side wall of the frequency converter room (1) and is located outside the frequency converter room (1).

6. The electromagnetic station micro-positive pressure control device according to claim 5, characterized in that: The exhaust pipe (6) is provided with a regulating valve (9), and the regulating valve (9) is used to open and close the exhaust pipe (6).

Images