4results about How to "Guaranteed operating conditions" patented technology

The invention discloses a carrier synchronization control method with multiple converters connected in parallel, electronic equipment and a storage medium, each converter corresponds to a control unit, each control unit is integrated with a corresponding accumulation counter, one converter is used as a host, the other converters are used as slaves, the method is applied to any slave, and the control unit is integrated with a corresponding accumulation counter. Comprising the following steps: receiving a preset low-frequency synchronization signal generated and sent by a host; capturing a rising edge or a falling edge of the low-frequency synchronizing signal; when the rising edge or the falling edge of the low-frequency synchronization signal is captured every time, collecting the current carrier value and the maximum carrier value of the carrier signal output by the corresponding control unit; and according to the current carrier value and the maximum carrier value, adjusting the carrier count value of the corresponding accumulation counter, so that the carrier signal of the slave computer and the carrier signal of the host computer are synchronized in phase. According to the invention, a low-frequency signal is used as a synchronization mechanism, so that normal operation and efficient output of the multi-machine parallel system are ensured, and the high-frequency synchronization precision is improved.

The present application relates to asphalt tail gas treatment equipment, including spray tower, the spray tower includes air inlet pipe, tower body and air outlet pipe, the air inlet pipe is connected with the lower side of the tower body, the air outlet pipe is connected with the top of the tower body, the air inlet pipe is communicated with the air outlet pipe through the tower body, the spray assembly is arranged in the tower body, the fan and the dirty oil purification device are installed at the connection of the air outlet pipe and the tower body, the spray assembly includes water inlet pipe and several spray heads, the water inlet pipe penetrates the side wall of the tower body and is communicated with the spray head, the fan is installed in the air outlet pipe and the tower body, the dirty oil purification device includes base, heat radiation strip and oil absorption material, the oil absorption material is filled in the base, the upper side of the base facing the fan is inclined to the center, a plurality of heat radiation strips are evenly spaced along the inclined direction of the upper side of the base, a plurality of oil leakage holes are arranged between two heat radiation strips. The fan is heated by the dirty oil purification device to prevent the tail gas from being hardened on the fan blade.

This utility model discloses a ceramic auxiliary impeller for a composite ceramic pump, comprising an auxiliary impeller ceramic body, a metal frame, a metal hub, and a front cover plate. The auxiliary impeller ceramic body has a hub hole in its middle that mates with the metal hub. The interior of the auxiliary impeller ceramic body has a receiving cavity for accommodating the metal frame. The front end of the auxiliary impeller ceramic body has a cover plate cavity for inserting the front cover plate. The metal frame is circumferentially disposed on the outer surface of the metal hub. After inserting the metal hub into the hub hole and the metal frame into the receiving cavity, a resin-ceramic bonding layer is poured into the receiving cavity. Then, the front cover plate is placed into the cover plate cavity. The resin-ceramic bonding layer connects the auxiliary impeller ceramic body, metal frame, metal hub, and front cover plate into a whole.

The utility model relates to the field of power regulators, and discloses a drawer type power regulator which comprises a drawer body, a main circuit breaker and power regulator modules, the main circuit breaker is installed in the middle of the drawer body, and the two groups of power regulator modules are installed in the drawer body at two sides of the main circuit breaker. The power regulator module comprises an operation panel, a temperature controller, a power regulation assembly, a thyristor, a fast-acting fuse and a socket, the operation panel and the temperature controller are installed on a panel on the front side of the drawer body, the power regulation assembly is installed at the bottom in the drawer body, and the thyristor and the fast-acting fuse are installed in the middle of the drawer body. The socket is installed on the back of the drawer body opposite to the operation panel. According to the utility model, the two groups of power regulator modules are arranged in the drawer body, and different power regulator modules can be quickly switched by using the main circuit breaker, so that the production can be quickly recovered, the maintenance efficiency is greatly improved, and meanwhile, the two power regulator modules are integrated in the drawer body, so that the on-site installation space can be greatly saved.