5results about How to "Avoid high load operation" patented technology

The application provides a power system control method and system of a hydrogen energy vehicle. By setting a separate control device for a hydrogen fuel cell stack, the hydrogen fuel cell stack can be more accurately controlled in different operating states. When the hydrogen fuel cell stack is unloaded, the reduced current can be compensated by the battery output, so that the sudden power output drop of the user during use can be avoided, the safety of the stack is protected, the service life of the hydrogen fuel cell stack is improved, and the user experience is not affected.

This utility model relates to the field of wastewater treatment technology and discloses a wastewater treatment system for a highway service area, comprising: an equalization tank, a water treatment tank, a pre-sedimentation tank, and an MBR membrane tank; the water treatment tank includes an anoxic tank and an aerobic tank, the equalization tank and the anoxic tank are connected, the anoxic tank and the aerobic tank are connected, the aerobic tank and the pre-sedimentation tank are connected, and the pre-sedimentation tank and the MBR membrane tank are connected. The pre-sedimentation tank is used to pre-treat suspended solids in the wastewater entering the MBR membrane tank. This application, by setting up a pre-sedimentation tank to pre-treat suspended solids in the wastewater entering the MBR membrane tank, can effectively remove most of the suspended solids and some colloidal substances from the wastewater, avoid high-load operation of the MBR membrane, reduce the risk of membrane fouling, extend membrane life, reduce cleaning frequency and energy consumption, and improve effluent quality.

The underground ore drawing structure comprises a draw shaft, a first ore drawing machine, a second ore drawing machine, a middle-section haulage roadway and an operation chamber, the bottom of the draw shaft is expanded and brushed to form a horn-shaped ore bin, the first ore drawing machine and the second ore drawing machine are installed at the bottom of the draw shaft in parallel, and the middle-section haulage roadway is arranged below the first ore drawing machine and the second ore drawing machine; a plurality of mine cars are arranged in the middle-section haulage roadway, and a control switch used for controlling the first ore drawing machine and the second ore drawing machine to be opened and closed is arranged in the operation chamber. The ore drawing efficiency is effectively improved through the underground ore drawing structure, the two vibration ore drawing machines work at the same time, and the overall ore drawing capacity can be greatly improved; the ore is uniformly discharged from the draw shaft, so that the phenomenon of ore discharge segregation is avoided, the processing technology is stabilized, and the product quality is improved; meanwhile, the ore drawing time can be shortened through ore drawing, long-time high-load operation of single equipment is avoided, abrasion of equipment parts can be reduced through the reasonable working state, the service life of the vibratory ore drawing machine is prolonged, and the equipment replacement and maintenance cost is reduced.

The invention discloses a cabin, and relates to the technical field of cabins, the cabin comprises a skeleton module and an electric control module, the electric control module comprises a protective shell and an electric module installed on the protective shell, the protective shell is provided with a first connecting part and a second connecting part, the first connecting part is rotatably connected to the skeleton module, and the second connecting part is rotatably connected to the skeleton module. And the second connecting part is detachably fixed on the framework module, so that the electric control module can turn over relative to the framework module. The technical scheme provided by the invention aims to improve the maintenance convenience of the electric control module.

This utility model relates to the field of smoke extraction fan cabinet technology, and more particularly to an environmentally friendly smoke extraction fan cabinet, including a protective box; it also includes an air inlet plate and a smoke extraction assembly; the protective box contains an air inlet plate, and multiple rotating rods are rotatably mounted on the inner wall of the air inlet plate. Baffles are fixedly connected to the outer wall of each rotating rod. One end of each rotating rod passes through the air inlet plate and is fixedly connected to a first adjusting plate. A second adjusting plate is rotatably mounted at the lower end of the first adjusting plate. The smoke extraction assembly is located inside the protective box. This utility model uses an electric push rod to drive a support ring towards the outer shell. At this time, the second adjusting plate pushes the first adjusting plate to rotate. Since the rotating rod and the first adjusting plate are fixedly connected, the rotating rod also rotates, thereby causing the multiple baffles to rotate. This changes the gap between the baffles, thus altering the air intake volume and preventing the impeller from operating under high load. This solves the problem of increased energy consumption of the fan due to the inability to control the air intake volume, which would otherwise place a large load on the impeller.