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Intelligent rectifier cabinet and temperature control method thereof

A rectifier cabinet, intelligent technology, applied in the direction of conversion of AC power input to DC power output, cooling/ventilation/heating transformation, output power conversion device, etc., can solve the problem of reducing the filtering effect of particle condensation heat exchangers, reducing The service life of surrounding equipment, reducing the service life of equipment and other issues, to achieve the effect of improving cold resistance, ensuring service life and avoiding waste

Active Publication Date: 2016-03-16
湘潭市宇通牵引电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flue gas contains a lot of acid gases such as sulfur dioxide. The acid gas dissolves in water to form acid droplets, which will corrode the equipment and reduce the service life of the equipment.
The particle condensation heat exchanger can remove the acidic mist in the flue gas, but the acidic mist is adsorbed on the serpentine tube and fins and then drips down and splashes easily, causing secondary entrainment, which not only reduces the particle condensation heat exchanger The filtering effect of the heater will also reduce the service life of the surrounding equipment

Method used

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  • Intelligent rectifier cabinet and temperature control method thereof

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specific Embodiment 1

[0021] Such as figure 1 As shown, an intelligent rectifier cabinet and its temperature control method of the present invention include a rectifier cabinet body and a heat exchanger, a plurality of diodes are included in the rectifier cabinet body, and pure water channels are arranged in the diodes; the heat exchanger includes a heat dissipation tube 1. Cooling pipe 2 and a number of parallel heat exchange pipes. The heat exchange pipe is provided with a cooling chamber 3, a heating chamber 5, and a heat dissipation chamber 4. The cooling chamber 3 is connected to the cooling pipe 2, and the heat dissipation pipe 1 is connected to the heat dissipation chamber 4. The heating chamber 5 is respectively provided with an electric heater; the pure water channel is connected to the cooling pipe 2 through a pipeline and a circulating water pump to form a pure water circulation system; the cooling chamber 3 is cross-shaped, and the heating chamber 5 is located at a pair of corners outsid...

specific Embodiment 2

[0024] According to the temperature control system of the intelligent rectifier cabinet and its temperature control method of embodiment 1, it and its temperature control method are:

[0025] Step 1: Start the heat exchanger and rectifier cabinet, PLC controls the flow of pure water at the diode to 0.6L / s; PLC controls the flow of cooling water at the entrance of cooling chamber 3 to 1.2L / s, and the flow of pure water at the entrance of cooling chamber 4 The flow rate is 0.45L / s, and the total power of the electric heater is 0W;

[0026]Step 2: After the heat exchanger, rectifier cabinet, and pure water purification device run stably for 5 minutes, the PLC detects the diode temperature. When the temperature is lower than 21°C, the PLC controls the pure water flow at the diode to 0.55L / s, and the cooling chamber 3 The flow rate of cooling water at the entrance is 1.2L / s, the flow rate of pure water at the entrance of cooling chamber 4 is 0.38L / s, and the total power of the elec...

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Abstract

The invention relates to an intelligent rectifier cabinet and a temperature control method thereof, belongs to the field of rectifying equipment, and discloses an intelligent rectifier cabinet and a temperature control method therefor. The intelligent rectifier cabinet comprises a rectifier cabinet body and a heat exchanger, wherein a plurality of diodes are arranged on the rectifier cabinet body; a pure water channel is arranged in each diode; the heat exchanger comprises a radiating tube, a cooling tube and a plurality of parallel heat exchange tubes; a cooling cavity, a heating cavity and a radiating cavity are formed in each heat exchange tube; the cooling cavities are connected with the cooling tube; the radiating tube is connected with the radiating cavities; an electric heater is arranged in each heating cavity; and the pure water channels are connected with the cooling tube to form a pure water circulating system through a pipeline and a circulating water pump. The service lifetime of the rectifier cabinet is ensured. In addition, temperature control and flow control are carried out on the heat exchange tubes of the heat exchanger, so that the heat exchange efficiency is improved; waste of resources is avoided; shortening of the service lifetime of equipment caused by an overlarge local temperature difference of the equipment is avoided; effective utilization of the equipment can be ensured; and the heat exchange efficiency of heat exchange equipment can be effectively improved through an intelligent control on a controller.

Description

technical field [0001] The invention relates to an intelligent rectification cabinet and a temperature control method thereof, belonging to the field of rectification equipment. Background technique [0002] The rectifier cabinet adopts the same-phase anti-parallel three-phase bridge rectifier circuit structure. Its basic principle: connect two identical three-phase bridge rectifiers, and arrange them together according to the same phase sequence, phase difference of 180 degrees, and positive and negative DC bars to form two sets of opposite poles from the secondary winding to the rectifier arm. The lead wires are arranged as close as possible, and the currents passing through them are equal in size and opposite in direction at any moment, so that the alternating magnetic fluxes generated by each cancel each other out of the two reverse parallel conductors, thereby greatly reducing the line reactance of each part , and increase the symmetry of the interphase impedance, whic...

Claims

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Application Information

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IPC IPC(8): H02M7/00H05K7/20
Inventor 曾丽
Owner 湘潭市宇通牵引电气有限公司
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