41results about How to "No cooling effect" patented technology

The invention discloses a controller for limiting inside temperature of a switch cabinet, and the controller comprises a controller outer box, and further comprises a heat control box, a cold controlbox and a heat absorption tube, wherein the heat control box and the cold control box are arranged inside the controller outer box, the heat absorbing tube is installed outside the controller outer box, the heat control box and the cold control box are separated by a heat insulating layer, a plurality of resistance coils are installed inside the heat control box, a water tank is installed inside the cold control box, a sealed box is installed above the water tank, and one end of the water tank is installed with one end of the heat absorbing tube. The controller of the invention, from the pointof view of the temperature controller itself regulating the internal temperature of the circuit box, provides a temperature to guarantee the normal operation of the circuit box when exceeding the normal working temperature in an extremely cold environment, and delays the burning temperature inside the circuit box through the heat absorption of chemical reaction in an extremely hot environment, sothat the circuit box can be safely used to delay the occurrence of danger.

The invention discloses an electrical cabinet. An upper ventilation pipe and a lower ventilation pipe are arranged on a cabinet body, an upper air chamber is arranged at an upper part of a back package cavity of the cabinet body, a lower air chamber is arranged at a lower part of the back package cavity, an air outlet chamber is arranged at the center of the back package cavity, an air outlet door is hinged with the middle part of the back package cavity, an exhaust fan is arranged on the air outlet door, and an upper ventilation hole and a lower ventilation hole are formed in a back plate. The invention also discloses a heat dissipation system of the electrical cabinet. A basement is arranged below a ground plate of a power distribution room, an air duct is arranged above the electrical cabinet, an exhaust pipe is connected with the top of the air duct, an air blower is arranged outside the power distribution room, a hot air cabinet is fixedly arranged on a side surface of the air duct, upper air holes are formed in a bottom surface of the air duct and are in one-to-one correspondence to the electrical cabinets, and lower air holes are formed in the ground plate of a power distribution cabinet and are in one-to-one correspondence to the electrical cabinets. The electrical cabinet has the advantages that hot air can be borrowed from the electrical cabinet aside to increase the temperature of the electrical cabinet when the temperature of the electrical cabinet is excessively low, the condensation-preventing cost is lower, meanwhile, independent or centralized heat dissipation can be achieved, and the heat dissipation effect is good.

The invention belongs to the field of thick slab rolling and hot working, and particularly relates to a non-water-cooling furnace door of a slab heating furnace. The furnace door comprises side plates, and further comprises a plurality of sets of transverse rib plates and a plurality of sets of longitudinal rib plates, wherein the transverse rib plates and the longitudinal rib plates are located between the side plates. Each transverse rib plate comprises an inner transverse rib plate body and an outer transverse rib plate body, wherein the inner transverse rib plate body is perpendicular to the side plates and inclines upwards, an angle of inclination is formed between the inner transverse rib plate body and the horizontal plane, the lower end of the inner transverse rib plate body is connected with one side of a front face plate, the other side of the front face plate is fixedly connected with the outer transverse rib plate body, the outer transverse rib plate body is respectively perpendicular to the front face plate and the side plates, and the inner transverse rib plate body is provided with a plurality of inner transverse rib plate body holes. The longitudinal rib plates are provided with a plurality of longitudinal rib plate holes. According to the non-water-cooling furnace door, thermal insulation materials cannot fall off when the furnace door is frequently opened and closed at the high temperature, the high-temperature resisting performance is good, the service life is long, the production and operation cost is low, the furnace door does not need water cooling through the transverse rib plates, the longitudinal rib plates and the rib plate body holes, and the overall deformation is very small when the furnace door is used at the high temperature for a long time.