64results about How to "Exhaust stable" patented technology

A headphone includes a hanger and two speaker units respectively disposed at the two ends of the hanger. Each speaker unit includes a first shell; a second shell engaged with the first shell, a first air passage being formed between the first shell and the second shell, a second air passage being formed on the second shell, the second air passage having an opening direction different from an opening direction of the first air passage; a cover engaged with the second shell and having a plurality of holes on the cover; and a speaker disposed between the first shell and the second shell. When the speaker outputs sound, airflows generated by the speaker are exhausted through the first air passage, the second air passage and the holes so that the amount of air exhaust is stable and the output audio is of high quality.

Provided is a diffusion system for forming a doping layer in a wafer. The diffusion system includes a bubbler for generating a doping gas; a premixer, which premixes the doping gas with reactive gases and preheats the gas mixture; a main chamber, in which the gas mixture reacts to the wafer; a buffer case, which externally isolates an exhaust port and a door for loading and unloading the wafer into and out or the main chamber; and a used gas exhaustion system, which exhausts a used gas after the reaction is finished in the main chamber.

The present invention is one that downsizes an exhaust gas sampling apparatus such as a CVS as well as uniforming temperature of diluted exhaust gas passing through a flow rate controller such as a critical flow venturi, and has a casing 10 formed with a gas introduction port PT3 for introducing the diluted exhaust gas and a gas lead-out port PT4 for leading out the diluted exhaust gas, in which a temperature regulating mechanism 2 is contained in the casing 10, the flow rate controller 31 is fluidly connected to the gas lead-out port PT4, and between the gas introduction port PT3 and the temperature regulating mechanism 2, a dispersion structure 12 that disperses the diluted exhaust gas introduced from the gas introduction port PT3 is provided.

The invention discloses a vacuum pressure continuous control method used for a polysilicon ingot casting process. A vacuum mode is adopted in furnace heating step; then the melting, growing, annealingand cooling steps are carried out; the gas voltage regulation mode is adopted; under the voltage regulation mode, two modes of gas inlet regulation and gas outlet regulation are adopted to regulate the furnace pressure. At the same time, the invention also discloses a control system for realizing the control method. The method can be used for the polysilicon ingot casting production, can steadilycontrol the vacuum furnace pressure, can guarantee stable gas inlet and gas outlet at the same time, can save the input gas consumption, and is simple and practical and has ideal control effect.

The invention discloses environment-friendly air dedusting equipment for chemical industry workshop and a using method thereof. The environment-friendly air dedusting equipment comprises a support table, wherein two cyclone dedusting tanks which are arranged in parallel are arranged on the top surface of the support table in a penetrating way; two air pumps are arranged at two sides of the top surface of the support table; air exhaust ends of the air pumps are connected with air inlets; the air inlets are formed in the top parts of the outer side walls of the cyclone dedusting tanks along tangential positions of the side walls of the cyclone dedusting tanks; separating cavities are arranged in the cyclone dedusting tanks; air exhaust pipes are vertically arranged at the central positions of the separating cavities; the side walls of the top parts of the air exhaust pipes are rotationally arranged on the top surfaces of the cyclone dedusting tanks in the penetrating way; dust falling openings are formed in the bottom surfaces of the cyclone dedusting tanks; a sewage discharging hopper is arranged under the dust falling openings; multiple air paddle plates are fixedly arranged on theside walls of the top parts of the air exhaust pipes; dust scraping devices are arranged at the inner parts of the air exhaust pipes in a sleeving way; openings in the top parts of the air exhaust pipes penetrate through a secondary filter tank; the secondary filter tank is internally provided with a detachable push-pull filter net. According to the environment-friendly air dedusting equipment disclosed by the invention, a self cleaning function can be realized by driving the air exhaust pipes through wind power.

An accumulating wave power station, comprising a fixed column (1), a wave energy transmitting and stabilizing mechanism (2) mounted on the fixed column; a wave energy collecting mechanism (3) mounted on the wave energy transmitting and stabilizing mechanism; a transmission channel (5) provided on the wave energy transmitting and stabilizing mechanism; and an accumulating and applying mechanism (4) to which the wave energy collecting mechanism is connected via the transmission channel. The accumulating and applying mechanism comprises a pressure-stabilizing and gas-accumulating tank (6), a pressurized gas-accumulating tank (7), a pneumatic actuating apparatus (8), and an electricity-generating apparatus (9). The wave energy collecting mechanism comprises a gas-accumulating floating tank (14), a first multimodal gas compressor (15), a second multimodal gas compressor (16), a lever (17), and a float (18). The accumulating wave power station produces stable gas accumulation and gas discharge to serve as power driving the pneumatic actuating apparatus to drive the electricity-generating apparatus to generate electricity, and is provided with the characteristics of stable electricity generation, inexpensive manufacturing costs, high practicability, and convenient installation and maintenance.