Inverter put into the explosion-proof box problem to be solved <br> <br> bear the brunt of the inverter to be solved is to determine the position of the explosion-proof box:
Inverter Structure Arrangement We design the main circuit as a large unit and install it in the rear wall of the rectangular explosion-proof cavity. The back wall is connected to the heating element such as the IGBT module and rectifier module through an overheating radiator. The overheat radiator is connected with the slot radiator through the heat pipe. The heat generated inside the inverter is dissipated through the heat sink slot heat sink of the radiator in the back wall of the explosion-proof chamber.
The main circuit of the frequency converter in the explosion-proof box processing plan:
The main circuit structure is different from that of general-purpose inverters. (1) There is no loop to avoid the unsafe factors caused by the electric spark generated when the relay operates, which increases the safety and reliability of the inverter.
(2) Rectifier capacity selection is doubled than that of general-purpose inverters in order to withstand the impact of capacitive charging currents at the instant of inverter startup.
(3) The filter capacitor uses many non-inductive capacitors. The parallel electrolytic capacitor is bulky, easy to explode in high temperature environment, and unsafe; while the non-inductive capacitor is small in size, high temperature and high pressure, and it is very safe to use in this environment.
The frequency converter is a kind of electric appliance with a very large amount of heat. Therefore, only the problem to be solved when installing in the explosion-proof box is the heating problem:
Heat Dissipation Problem Since all the components of the inverter are installed in the explosion-proof chamber, the air cannot flow, and the heat dissipation problem becomes a key problem to be solved by the inverter. Here we use a new cooling technology - heat pipe cooling technology.
(1) The principle of heat pipe technology The heat pipe is a heat transfer element with extremely high thermal conductivity. It transfers heat through the evaporation and condensation of the working medium in a totally enclosed vacuum tube. It has extremely high thermal conductivity, good isothermality, and coldness. Heat on both sides of the heat transfer area can be arbitrarily changed, long-distance heat transfer, temperature control and a series of advantages. The heat exchanger composed of heat pipes has the advantages of high heat transfer efficiency, compact structure, and low fluid loss.
Since it is the explosion-proof inverter control box, then the key point is the explosion-proof problem. Then how to solve the explosion-proof problem?
Explosion-proof problem Because the environment used by the inverter has more explosive gas or dust, this requires the inverter to be sealed and explosion-proof, so its shell can not use the ordinary shell, it must use the standard explosion-proof cavity, and all the components of the inverter. Are installed in the explosion-proof cavity. Open an observation window on the explosion-proof chamber door, install the display part on it, and install start, stop and speed control on the explosion-proof chamber door.
Inverter Structure Arrangement We design the main circuit as a large unit and install it in the rear wall of the rectangular explosion-proof cavity. The back wall is connected to the heating element such as the IGBT module and rectifier module through an overheating radiator. The overheat radiator is connected with the slot radiator through the heat pipe. The heat generated inside the inverter is dissipated through the heat sink slot heat sink of the radiator in the back wall of the explosion-proof chamber.
The main circuit of the frequency converter in the explosion-proof box processing plan:
The main circuit structure is different from that of general-purpose inverters. (1) There is no loop to avoid the unsafe factors caused by the electric spark generated when the relay operates, which increases the safety and reliability of the inverter.
(2) Rectifier capacity selection is doubled than that of general-purpose inverters in order to withstand the impact of capacitive charging currents at the instant of inverter startup.
(3) The filter capacitor uses many non-inductive capacitors. The parallel electrolytic capacitor is bulky, easy to explode in high temperature environment, and unsafe; while the non-inductive capacitor is small in size, high temperature and high pressure, and it is very safe to use in this environment.
The frequency converter is a kind of electric appliance with a very large amount of heat. Therefore, only the problem to be solved when installing in the explosion-proof box is the heating problem:
Heat Dissipation Problem Since all the components of the inverter are installed in the explosion-proof chamber, the air cannot flow, and the heat dissipation problem becomes a key problem to be solved by the inverter. Here we use a new cooling technology - heat pipe cooling technology.
(1) The principle of heat pipe technology The heat pipe is a heat transfer element with extremely high thermal conductivity. It transfers heat through the evaporation and condensation of the working medium in a totally enclosed vacuum tube. It has extremely high thermal conductivity, good isothermality, and coldness. Heat on both sides of the heat transfer area can be arbitrarily changed, long-distance heat transfer, temperature control and a series of advantages. The heat exchanger composed of heat pipes has the advantages of high heat transfer efficiency, compact structure, and low fluid loss.
Since it is the explosion-proof inverter control box, then the key point is the explosion-proof problem. Then how to solve the explosion-proof problem?
Explosion-proof problem Because the environment used by the inverter has more explosive gas or dust, this requires the inverter to be sealed and explosion-proof, so its shell can not use the ordinary shell, it must use the standard explosion-proof cavity, and all the components of the inverter. Are installed in the explosion-proof cavity. Open an observation window on the explosion-proof chamber door, install the display part on it, and install start, stop and speed control on the explosion-proof chamber door.
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