35results about How to "Guaranteed air supply" patented technology

The invention discloses a heat pump system which utilizes heat recovery to increase the amount of supplementary air and a control method thereof. The heat pump system includes a two-stage compressor, an indoor heat exchanger, an outdoor heat exchanger and a flash evaporator, and is characterized in that it also includes a heat recovery and air supply device, which includes: recovery of the two-stage compressor The heat storage heat exchanger of the shell is connected to the second port of the indoor heat exchanger and the first branch of the inlet of the heat storage heat exchanger through the first heat recovery solenoid valve, and connected to the outdoor heat exchange through the second heat recovery solenoid valve The second port of the heat storage device and the second branch of the inlet of the heat storage heat exchanger, and the outlet of the heat storage heat exchanger communicates with the flash evaporator through a pipeline. The invention recovers the heat of the compressor shell to increase the air supply volume, solves the problem of insufficient air supply volume when the low-temperature frequency conversion heat pump system operates at high frequency, and simultaneously improves the heating capacity and cooling capacity.

The invention belongs to the technical field of measurement, and relates to a two-shaft automatic turntable structure with built-in air ducts. The structure is used for ventilating measured parts and dissipating the heat of the measured parts. By building the air ducts in a turntable shaft and realizing that the air ducts pass through the inner and outer shafts by utilizing two-stage rotary joints of the air ducts, the structure adapts to the ventilation under the condition of continuous rotation of the two shafts; one ventilating rotary joint is installed at one side of a tilting shaft system, and the other side is used for a conducting ring and other electrical channels; the other rotary joint is installed in the middle of an azimuth shaft by adopting a unique air box structure; the shaft end part of the azimuth shaft is reserved for the conducting ring and other electrical channels; and the rotary joints enable the air ducts to complete dynamic and static transformation. The problem of collision between the air ducts of the azimuth shaft system and the electrical channels (the conducting ring and cables) is solved by adopting the divided chamber structure; and the two shafts can provide positioning at any angle, thus ensuring air supply while realizing infinite rotation, and meeting the test requirements for continuous rotation and the angular rate.

The invention provides the technical scheme of a security air system for preventing the slag from entering blast furnaces. The security air system comprises three 1750m<3> blast furnace air supply pipelines, one 3200m<3> blast furnace air supply pipeline and a ventilation pipeline, wherein the ventilation pipeline is communicated with the 1750m<3> blast furnace air supply pipelines respectively and is also communicated with the 3200m<3> blast furnace air supply pipeline, all the 1750m<3> blast furnace air supply pipelines are provided with pressure transmitters, pipeline butterfly valves and electronic quick-opening valves, the ventilation pipeline is provided with a pressure transmitter, the 3200m<3> blast furnace air supply pipeline is communicated with the ventilation pipeline through a first passage and a second passage respectively, each of the first passage and the second passage is provided with an air supply butterfly valve, a first pipeline is further provided with a check valve and a pneumatic quick-opening valve, and the second passage is further provided with a regulating valve. According to the technical scheme, the automatic introduction of the security air among a plurality of blast furnaces can be achieved according to the variation condition of the air pressure without the need of arranging fan equipment independently, and the phenomenon that slag enters the blast furnaces due to abnormal stop of the blast furnaces is effectively prevented.

The invention discloses a large shaft air supply pipe drainage system for a generator, which comprises a rotating shaft air supply pipe and a generator cover floor; the air inlet of the rotating shaft air supply pipe runs through the generator cover floor and is located above the generator cover floor; An annular support plate is arranged above the floor of the generator hood; a guide rod and a push-pull rod are arranged on the upper side of the annular support plate; an upper pressure plate is arranged at the air inlet of the rotating shaft; the upper end of the guide rod and the push-pull rod output The shafts are all connected to the upper platen; the upper end of the guide rod and the output shaft of the push-pull rod and the upper platen are connected with threaded caps; the upper platen is provided with a guide tube; the guide tube communicates with the air supply pipe of the rotating shaft. By setting the diversion pipe, the water emerging from the air supply pipe of the rotating shaft is diverted to the leakage drainage collection well, so as to prevent the water from the air supply pipe of the large shaft from entering the top of the generator, and effectively prevent water from entering the top of the generator.