49results about How to "Avoid fume" patented technology

A cooking device includes a base, a housing, a lid, a detection module, a control module and an exhaust module. The detection module includes an image detection sensor arranged on the lid and configured to take an image of a cooking process. The control module includes a processor connected with the detection module and arranged in the base or the housing, and a wireless unit configured to perform information interaction with a portable electronic device to transmit cooking parameters including the image out of the cooking device. The exhaust module includes an air-filled element, an air-extraction element, an inlet passage and an exhaust passage. The inlet passage is disposed on the lid, the air-filled element is disposed on the inlet passage, the air-extraction element is disposed on the exhaust passage and used to exhaust fog or oil fume generated in the at least one inner pot

An electronically controlled electrical power generator comprises a generator (15) driven by a heat engine (11), operated by control means (19), and carrying an electrical load (22). Operation of the heat engine (11) is at wide open throttle. Control over engine operation and electrical output of the generator (15) is achieved by electronically manipulating the electric load (22), and/or adjusting excitation levels at the generator's magnetic fields, so as to change engine/generator equilibrium speed. In a beneficial embodiment, the generator (15) is powered by an energy storage unit (21), to temporarily act as a motor and rotate the engine (11) when starting, and during power absorbing strokes. A method for controlling an unthrottled engine (11) including varying the gear ratio of a transmission connected between the mechanical output of the engine (11) and a mechanical load (22), to provide a torque load to the engine (11) to cause the engine (11) to move to an equilibrium speed at which its power output substantially meets a power output requirement. In a second embodiment, variance in the impedance of an AC generator (15) connected to the engine (11) provide a torque load to the engine (11) to control its equilibrium speed.

The invention discloses a fire alarm control system which comprises a master controller, a wireless communication module and a power module, wherein the wireless communication module is connected with the master controller; the input end of the master controller is connected with a signal acquisition module and a camera; the output end of the master controller is connected with a water spray suppression device, a guiding system, a broadcasting system and a scavenger fan; the guiding system is connected with an indicator lamp module; the broadcasting system is connected with a loudspeaker box; the wireless communication module is connected with a monitoring host; the signal acquisition module, the camera, the guiding system and the broadcasting system are arranged at the stairway in the building; the water spray suppression device is arranged at the top in the building; the scavenger fan is arranged on the wall and communicated with the outdoor; the monitoring host is arranged in the residential area monitor room. The fire alarm control system can be used for indicating the safe escape direction and displacing the dense smoke outdoors through the scavenger fan while reducing the fire by the water spray suppression device, and has the advantages of high control reliability, high working stability, long service life, strong practicability, good using effect and convenience in popularization and use.

The invention provides a range hood and a control method thereof. The range hood comprises an indoor flue, a control device and a fan, wherein a detection device connected with the control device is arranged in the indoor flue; the control device is used for controlling the fan according to detection results of the detection device when the fan is at a stop state. By adopting the range hood and the control method provided by the invention, cooking fume in a public flue is effectively prevented from flowing back into an indoor flue, a kitchen can be prevented from odor or cooking fume, fresh and natural air is ensured for the kitchen, and the user experience is improved.

The invention is an electric heating barbecue device which consists of reflectors, electric control, heat-generating pipe, frame and gridiron. The gridiron is installed on the frame, the upper reflector is installed up the gridiron and fixed on the upper of frame, the heat-generating pipe is fixed on the lower part of the upper reflector, the lower of gridiron is equipped with the lower reflector installed on the frame, the lower part of lower reflector is equipped with water plate installed on the frame and the base of the lower reflector contacts waterborne of water plate. The invention not only greatly increases the utilization of heat and avoids heat loss, thus increases its efficiency, but also avoids generating barbecue smoke, is suitable for indoor use. The invention is a reasonable design, convenient and practical electric heating barbecue device.

The embodiment of the invention provides a cooking method. The cooking method comprises the steps: entering a water adding and pot preheating stage comprising the steps: controlling to automatically add water into a cooking pot to heat and preheat the cooking pot; detecting the water temperature in the cooking pot; when the detected water temperature is smaller than a first preset temperature line, continuing to heat; and when the detected water temperature is not smaller than the first preset temperature line, maintaining the first set heating power, and heating and sustaining for a first preset duration; and entering a cooking stage comprising the steps: in the cooking process, detecting the temperature of food materials in the cooking pot; and whether water needs to be automatically added into the cooking pot or not is judged on the basis of the detected food material temperature, controlling the cooking process. The cooking method provided by the embodiment of the invention can effectively prevent the food materials from being burnt and burnt in the cooking process.

The invention discloses a production process of polyester FDY multi-roll oil-free full-draft fibers. The production process includes the following steps that polymerization is conducted in a final polymerization autoclave, raw materials are then processed by means of a melt conveying pump, a melt distributor and a melt booster pump in sequence, the obtained melt is conveyed and then processed by means of a melt cooler, a static mixer, a melt distribution valve and a spinning box in sequence, then the melt is extruded in a metering pump and processed by means of a spinning assembly, fiber cooling and molding is conducted, then semi-finished fibers are processed by means of a U-shaped ceramic piece, a secondary network, a spinning channel, a first additional U-shaped ceramic piece1, a second U-shaped ceramic piece 2, a first silk guide roller, a first-level hot pulling roller, a second-level hot pulling roller, a third-level hot pulling roller and a heat-setting hot roller in sequence, a lubricating nipple is used for oiling, and the obtained fibers are processed by means of a second silk guide roller, a primary network, a third silk guide roller and a guide wheel and subjected to coiling, doffing, quality testing and packaging. According to the production process of the polyester FDY multi-roll oil-free full-draft fibers, the product quality is improved, the running environment of equipment and the working environment of workers in a FDY production place are optimized, yarn path operation is simplified, and energy conservation and high efficiency are achieved.

A carburetor includes a base, a Venturi cone assembly, a cam assembly, a horsepower adjustment assembly, and a vacuum horsepower adjustment valve. The Venturi cone assembly is mounted in the base. A supporting portion of a cone collides with a cam of the cam assembly. An oil line rotation wheel of the horsepower adjustment assembly is drawn by an oiling line to drive the fan blade. The amount of displacement of the cone of the Venturi cone assembly under vacuum suction from the engine is controlled by a cam of the cam assembly. The vacuum horsepower adjustment valve automatically supplies enough fuel to the engine. Accordingly, the present invention can make the fuel burn sufficiently, effectively improving efficiency and reducing air pollution.