Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1013results about How to "Change speed" patented technology

Air conditioning system used for removable emergency escape capsule for coal mine

The invention belongs to the fields of safety equipment and air conditioner refrigeration, which relate to an air conditioning system of a movable emergent rescue capsule for a coal mine. The air conditioning system comprises an outside capsule refrigerating unit consisting of a refrigeration compressor, a finned heat exchanger, a condensing fan and an expansion valve, and an inside capsule air conditioning device consisting of an upper ice storage tank, a lower ice storage tank and an explosionproof fan. The air conditioning system has main function of conditioning the humidity and the temperature inside the rescue capsule by the least electric quantity when the coal mine has accident, and simultaneously keeping the food fresh. Under normal condition, an explosionproof ice storage unit outside the air conditioning system maintains the ice quantity of the inside capsule air conditioning device by a mine power source; and in cataclysm state, when the outside power supply is interrupted, the air conditioning system can independently work and achieve the refrigeration by fewer energy sources, is not influenced by power reserve in the capsule and the outside environment temperature, provides necessary cold quantity for the rescue capsule, and simultaneously reduces the temperature in the capsule through the condensation. The air conditioning system has simple, convenient and quick temperature regulating control operation and maintenance, and is suitable for maintaining the temperature and the humidity of the rescue capsule under the condition that the supply of the outside energy source is interrupted.
Owner:UNIV OF SCI & TECH BEIJING

Coal mining equipment and roller electrical speed regulating system

ActiveCN102108862AEnsure coal mining efficiencyIncrease speedEnergy industryDriving meansStress conditionsEngineering
The invention discloses a roller electrical speed regulating system for coal mining equipment, which comprises a first detection element, a control element and a speed regulating element. In the system, the rotation speed of the roller can adapt to randomly changing condition of a coal cutting coal bed, so as to prevent the roller from being damage by an encountered hard coal bed and prolong the service life of the roller; meanwhile, under a normal use condition, for example the coal mining equipment works on a soft coal bed, the roller can rotate at a high speed to ensure the coal mining efficiency of the coal mining equipment. The control element also can regulate a traction speed by the traction speed regulating element, so that the traction speed of a coal mining machine and a cutting speed are consistent enough to realize high-efficiency cutting. The control element also can detect the coal loading effect of the roller and receive the stress condition of a conveyor through the detection element so as to control the cutting and traction speeds of the coal mining machine and ensure the high yield and efficiency of the fully mechanized coal mining equipment. The invention also discloses the coal mining equipment having the roller electrical speed regulating system.
Owner:益阳市科技成果转化服务中心 +1

Low-spatial-domain collision avoidance system and method for unmanned aerial vehicle

The invention discloses a low-spatial-domain collision avoidance system and method for an unmanned aerial vehicle. The method comprises: a flight data recording module collects unmanned aerial vehicle flight information and a wireless data transmission module transmits related data of flight information of the unmanned aerial vehicle to a ground unmanned aerial vehicle monitoring system, thereby calculating a flight path of the unmanned aerial vehicle; and the ground unmanned aerial vehicle monitoring system carries out unmanned aerial vehicle flight information data processing by using a collision avoidance algorithm and informs an unmanned aerial vehicle operator of state information of the unmanned aerial vehicle in real time. According to the invention, three-dimensional spatial Cartesian coordinates of all unmanned aerial vehicles are measured by a GPS; fitting of flight paths of the unmanned aerial vehicles within a current period is carried out based on a cubic spline curve fitting method; whether a closest distance of flight path curves between the unmanned aerial vehicles is smaller than a security distance is calculated to determine whether a collision will occur; and flight operators of the unmanned aerial vehicles are informed of a collision result timely to change flight directions and speeds of the unmanned aerial vehicles timely.
Owner:GUANGZHOU BUREAU CSG EHV POWER TRANSMISSION

Heat radiation control method, equipment, electronic equipment and computer-readable storage medium

An embodiment of the invention relates to the field of temperature control technology, and discloses a heat radiation control method, equipment, electronic equipment and a computer-readable storage medium. The heat radiation control method is applied to the electronic equipment. The electronic equipment at least comprises the components of a fan, at least one high-power-consumption device and at least one low-temperature-resistant device, wherein the high-power-consumption device is arranged between the fan and the low-temperature-resistant device. The heat radiation control method comprises the steps of detecting an ambient temperature of the electronic equipment; according to the ambient temperature of the electronic equipment, determining a target temperature of the high-power-consumption device; acquiring a difference between the real-time temperature of the high-power-consumption device and the target temperature; and determining the rotating speed of the fan according to the ambient temperature of the electronic equipment and the difference. The fan has different rotating speeds at different ambient temperatures, thereby realizing normal operation at different ambient temperatures. The rotating speed of the fan is adjusted according to an actual condition so that the fan is not always kept in a high-rotating-speed state, thereby performing functions of reducing power consumption and saving energy.
Owner:XIAN YIPU COMM TECH

Oxygen-enriched and flameless gas burner and control method thereof

The invention discloses an oxygen-enriched and flameless gas burner which comprises a burner casing, an air distribution plate, a prechamber, an oxygen nozzle and a fuel nozzle. A channel penetrating a wall body of a furnace wall of a heating furnace is arranged on the furnace wall. The burner casing is installed on one side of the channel, and the prechamber is formed in the space in the channel. A combustion-supporting air channel is arranged on the burner casing, and the fuel nozzle penetrates through the burner casing in an inserting mode. A fuel channel is arranged on the fuel nozzle. An air inlet and a fuel inlet are arranged on the air distribution plate. The oxygen nozzle is provided with an oxygen pipe and installed on the furnace wall of the heating furnace, the oxygen channel is communicated with a hearth of the heating furnace, the oxygen nozzle is slantingly arranged on the furnace wall of the heating furnace, and a spray head end of the oxygen nozzle is close to the prechamber. The oxygen-enriched and flameless gas burner organically combines the dilution combustion technology and the oxygen-enriched combustion technolog, achieves flameless combustion in the furnace, meanwhile optimizing temperature distribution in the furnace, and reduces NOx emission.
Owner:WISDRI WUHAN WIS IND FURNACE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products