49results about How to "Improve gas supply efficiency" patented technology

The invention provides a two-stage enthalpy-increasing rotor compressor. The two-stage enthalpy-increasing rotor compressor comprises a high-pressure-stage air cylinder, a middle cover plate assembly, a low-pressure-stage air cylinder, a lower flange and a lower cover plate, which are sequentially arranged from top to bottom, wherein the low-pressure-stage air cylinder is used as a primary compression cylinder, and the high-pressure-stage air cylinder is used as a secondary compression cylinder; a first middle cavity is formed inside the middle cover plate assembly, a second middle cavity is formed between the lower flange and the lower cover plate, the first middle cavity is communicated with the second middle cavity, a first exhaust opening and a first air replenishing opening are formed in the first middle cavity, and a second exhaust opening and a second air replenishing opening are formed in the second middle cavity; the first exhaust opening is communicated with an upper exhaust incision of the low-pressure-stage air cylinder, the second exhaust opening is communicated with a lower exhaust incision of the low-pressure-stage air cylinder, the first air replenishing opening and the second air replenishing opening are communicated with an enthalpy increasing opening of the low-pressure-stage air cylinder, and the first middle cavity is communicated with an air suction opening of the high-pressure-stage air cylinder. The invention also relates to an air conditioner. By adopting the two-stage enthalpy-increasing rotor compressor and the air conditioner, the volume of the middle cavity is increased, the fluctuation of the pressure of the middle cavity is effectively prevented, and the air replenishing efficiency is high.

The invention discloses a multistage air supplementing screw compressor with an economizer loop. More than two compression stages are executed on a pair of male and female rotors, wherein each mutually separated compression stage is provided with at least two air supplementing ports at different positions; the air supplementing ports at different positions are located at the same air supplementingpressure or different air supplementing pressure positions, and at least two air supplementing ports at different compression stages are located at different air supplementing pressure positions respectively. When the compression ratio is greater than a first preset numerical value, the air supplementing loops of the first compression stage and the second compression stage are opened; when the compression ratio is greater than the second preset value and less than the first preset value, the air supplementing loop of the first compression stage is opened; when the compression ratio is less than a second preset numerical value, the air supplementing loop of the first compression stage is opened or closed. The screw compressor can adapt to further improvement of capacity and energy efficiency under the large-pressure-ratio working condition, the exhaust temperature of the screw compressor can be reduced, the operation range of the compressor is expanded, and the reliability of the compressor is improved.

The invention relates to the technical field of medical care, and discloses a multifunctional emergency respirator for respiratory care, including a ventilation box, a filter chamber is arranged inside the ventilation box, and an air injection box is fixedly connected to the top of the filter chamber , the inside of the gas injection box is movably connected with a movable piece, the top of the movable piece is fixedly connected with a push rod, the bottom of the movable piece is fixedly connected with a return spring, and the outside of the gas injection box is fixedly connected with an air inlet The inside of the air inlet nozzle is movably connected with a sphere, the outside of the sphere is fixedly connected with a limit spring, and the bottom of the gas injection box is fixedly connected with a sealing ring, through the gas injection box, movable piece, push rod and The combined use of the return spring can achieve manual air supply, avoiding the artificial exhalation and air supply of medical staff, thereby reducing the workload, reducing the difficulty of operation, and improving the stability of the air supply of the emergency respirator, thereby ensuring the use effect of the equipment.

The invention relates to a miniature intelligent vacuum and pressurization gas source module, which comprises an electric gas pump and a gas source end block, wherein the gas source end block is connected to the electric gas pump, and is communicated to the electric gas pump through a gas path, a first-stage gas suction pipeline for sucking outside gas and a second-stage gas discharging pipeline for outputting pressure gas are arranged in the electric gas pump, the gas source end block is provided with a positive pressure gas capacitor and a vacuum gas capacitor, and the two capacitors are communicated to the two pipelines of the electric pump and are controlled by miniature electromagnetic valves V1, V2 and V3. According to the present invention, the electric gas pump is the pressurization gas pump, the two capacitors of the gas source end block can be used for respectively outputting pressure gas or vacuum to the outside, and the cylinder, the gas capacitors, the gas pipelines, the valves and the like are distributed in the module in the built-in manner, such that the structure is compact, the integrated miniaturized design and the automated control are achieved, and the miniature intelligent vacuum and pressurization gas source module is especially suitable for assembly in miniaturized calibrators.

The invention relates to the technical field of energy recovery, in particular to an energy recovery system. The system comprises a heat energy generating device, a heat storage device, a supply pipeline and a heat exchanger, wherein the heat energy generating device is used for generating a first fluid; the heat storage device is used for storing the first fluid, the heat storage device is connected with a first inlet of the heat exchanger; the supply pipeline is used for providing a second fluid to the heat exchanger, wherein the supply pipeline is connected with a second inlet of the heat exchanger, the temperature of the second fluid is less than the temperature of the first fluid; a first outlet of the heat exchanger is connected with an inlet of the heat energy generating device, wherein the second fluid absorbs heat of the first fluid in the heat exchanger, so that the temperature of the first fluid is reduced, and the cooled first fluid is supplied to the heat energy generatingdevice. According to the energy recovery system, the first fluid generated by the heat energy generating device is collected, and the collected first fluid is returned to the heat energy generating device, the recycling of the first fluid is realized, the recovery of the heat energy of the first fluid and the recovery of the first fluid are included, and the utilization rate of the energy is improved.