CN204668785U - A kind of cooling control cabinet - Google Patents

Abstract

The utility model discloses a cooling control cabinet, which comprises a box body and a top cover. The rows are installed on both sides of the box, and the bottom of the box is provided with vents and inlets; the heater is located at the bottom of the box, and the cooling fan, rainproof layer, heat insulation layer and vents are located at the top of the box; The vertically long inverter is installed vertically above the box and close to the neutral copper bar on one side; the PLC controller, switching power supply and temperature control switch are located next to the vertically long inverter and close to the neutral copper bar on the other side; open circuit The switch and the incoming line switch are located below the frequency converter and close to the incoming line; the utility model is suitable for the cooling control of the oil-immersed transformer with forced oil circulation and air cooling in the power system with a voltage level of 220kV and above.

Description

A cooling control cabinet

technical field

The utility model belongs to an energy-saving device for a substation, and mainly relates to a cooling control cabinet.

Background technique

One of the energy-saving measures of the substation is to adopt the frequency conversion control technology of the main transformer cooler to reduce the energy consumption of the high-power fan of the main transformer cooler. In recent years, how to realize the cooling and cooling of control cabinets in industrial sites such as electrical cabinets, cabinets, and electric control cabinets has become a big problem. In the prior art, there are many heat dissipation measures such as opening cabinet doors, blowing with fans, and installing cabinet air conditioners. Inadequacies.

Utility model content

Purpose of the utility model: The utility model provides an energy-saving cooling control cabinet suitable for the main transformer of the power system with a voltage level of 220kV and above.

Technical solution: A cooling control cabinet, including a box body and a top cover. The box body is equipped with a PLC controller, a frequency converter, a circuit breaker, a heater, and a zero-line copper bar, and the zero-line copper bar is installed inside the box body On both sides of the cabinet, there are vents and wire inlets at the bottom of the cabinet; the heater is located at the bottom of the cabinet, while the cooling fan, rainproof layer, heat insulation layer and vents are located at the top of the cabinet; It is set directly above the box and close to the neutral copper bar on one side; the PLC controller, switching power supply and temperature control switch are located next to the long inverter and close to the neutral copper bar on the other side; the circuit breaker and the incoming line switch are located on the Below the frequency converter and close to the cable inlet.

Further, a switching power supply is provided below the PLC controller.

Further, an incoming switch is provided below the circuit breaker.

Further, the box body is of a front and rear door opening type, and the front and rear doors are equipped with wind inlet and dust shields.

Further, there is a control panel straddling both sides of the box body, and several control buttons are arranged on the control panel.

Beneficial effects: the cooling control cabinet provided by the utility model is suitable for cooling control of oil-immersed transformers with forced oil circulation and air-cooling in power systems with a voltage level of 220kV and above. Among them, keep the heater away from the heat dissipation fan and heat insulation layer as far as possible, the heater is located at the low end, and the heat dissipation fan and heat insulation layer are located at the top of the box. When the temperature is low, the heater needs to be heated to the temperature required when the internal components are started, so that the heat provided by the heater can fill the entire box from bottom to top, and when the working temperature rises after starting, the cooling fan is required to cool down, and the heater Being away from the heat dissipation fan and the heat insulation layer will not cause false start of the heat dissipation fan during heating.

Furthermore, the vertically long frequency converter is arranged vertically and the PLC controller and temperature control switch are located beside the frequency converter, so that the arrangement of internal components is more compact, and the space in the box is less wasted, which is beneficial to the miniaturization of the box.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a front view of Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model.

As shown in Figure 1-2, a cooling control cabinet includes a box body 1 and a top cover 2, and the box body is equipped with a PLC controller 5, a frequency converter 6, a circuit breaker 9, a heater 3 and a zero line copper bar 4 , the zero line copper bar 4 is installed on both sides of the box body 1, and the bottom of the box body is provided with a vent 13 and a line inlet 12; the heater 3 is located at the bottom of the box body 1, and the cooling fan (not shown), rainproof layer, heat insulation layer and vent 13 are located at the top of the box body 1; the vertically long frequency converter 6 is vertically arranged on the top of the box body 1 and is close to the neutral line copper bar 4 on one side; the PLC controller 5 and the temperature control switch 8 are located at Next to the long frequency converter 6 and close to the neutral line copper bar 4 on the other side; a switching power supply 7 is provided below the PLC controller 5; a circuit breaker 9 is located below the frequency converter 6 and close to the line inlet 12, There is an incoming line switch 11; the box body 1 is a front and rear door opening type, and the front and rear doors are equipped with a wind inlet dust shield; a control panel spanning both sides of the box body 1 is also provided, and a number of control buttons 10 are arranged on the control panel.

The cabinet heat dissipation fan installed in the box body 1 is mainly used to reduce the internal ambient temperature of the box body 1; The bottom of the box body 1 is a wire inlet 12 and a vent 13 . The front and rear doors of the casing 1 have a wind inlet dust shield. It has the characteristics of being suitable for outdoor use such as anti-rain and snow intrusion, sun protection and other external solid intrusion.

The utility model is suitable for an energy-saving cooling control cabinet with a voltage level of 220kV and above for a main transformer with a compact structure layout, convenient installation, and simple debugging. The oil temperature control of the main transformer above kVA is ideal for the cooling control of large main transformers above 220kV that use forced oil circulation air cooling.

Claims (5)

1. A cooling control cabinet, comprising a casing and a top cover, characterized in that: the casing is provided with a PLC controller, a frequency converter, a circuit breaker, a heater and a zero line copper bar, and the zero line copper bar is installed on On both sides of the box, the bottom of the box is provided with vents and wire inlets; the heater is located at the bottom of the box, while the cooling fan, rainproof layer, heat insulation layer and vents are located at the top of the box; the longitudinal The frequency converter is installed vertically above the box and close to the neutral copper bar on one side; the PLC controller and temperature control switch are located next to the long frequency converter and close to the neutral copper bar on the other side; the circuit breaker is located below the frequency converter and near the cable entrance. 2. A cooling control cabinet according to claim 1, characterized in that: a switching power supply is provided below the PLC controller. 3. A cooling control cabinet according to claim 1, characterized in that: an incoming switch is provided below the circuit breaker. 4. A cooling control cabinet according to claim 1, characterized in that: the cabinet is of a front and rear door opening type, and the front and rear doors are equipped with wind inlet and dust baffles. 5 . The cooling control cabinet according to claim 1 , further comprising a control board straddling both sides of the cabinet, and a plurality of control buttons are arranged on the control board. 5 .