34results about How to "Effective humidity control" patented technology

The invention relates to closed variable-frequency heat pump drying equipment with a heat regenerator. The closed variable-frequency heat pump drying equipment is characterized in that the drying equipment comprises a variable-frequency compressor, a condenser, a throttling valve, an evaporator, the heat regenerator, a three-way valve, a variable-frequency fan, an air inlet temperature sensor, anair inlet humidity sensor, a drying bin, an air outlet temperature sensor, an air outlet humidity sensor and a controller. A control method comprises the steps: the controller adjusts the frequency ofthe variable-frequency compressor by comparing the magnitudes of the actual air inlet temperature T1 and the set air inlet temperature T0; the controller adjusts the ratio of the straight flux of thethree-way valve to the regenerative air volume by comparing the magnitudes of the actual air inlet humidity phi1 and the set air inlet humidity phi0; and the controller adjusts the frequency of the variable-frequency fan by comparing the magnitudes of the actual air humidity change value delta phi and the set air humidity difference value delta phi' and the magnitudes of the actual air temperature change value delta T and the set air temperature difference value delta T' of medium air entering and exiting from the drying bin. The closed variable-frequency heat pump drying equipment has the advantages that energy-saving operation of the drying equipment is achieved in the case of meeting drying process parameters.

The invention discloses a device for reducing the humidity of low-concentration gas and a dehumidification method. The device comprises a dehumidification tower, a gas-liquid separator, a dehumidification liquid constant temperature heat exchanger, a dehumidification liquid regeneration tower and a heat source, wherein the low-concentration gas enters the dehumidification tower through the gas-liquid separator, a dehumidification liquid discharging port and a liquid return port are also formed in the dehumidification tower; a dehumidification liquid passes through the dehumidification liquid constant temperature heat exchanger by the dehumidification liquid discharging port, then enters the dehumidification liquid regeneration tower to be regenerated, and finally returns to the dehumidification tower to be continuously dehumidified by the liquid return port of the dehumidification tower; and the dehumidification liquid regeneration tower also comprises a regeneration air draught fan. According to the device, the concentration of gas can be effectively controlled by adjusting the concentration of an absorbent, so that the dew point temperature of the gas is reduced; the waste heat of smoke discharged by a gas turbine is used as a main energy source, so that the energy consumption of the device is greatly reduced, and as the flow resistance is low, the gas only needs to pass through the dehumidification tower and no longer needs to flow through the heat exchanger with large loss of pressure, and therefore, the operation security of the low-concentration gas is ensured.

The invention discloses a compound fruit-vegetable deoxidizing preservative. Calculated by a dose of 1kg fruit and vegetable, the compound fruit-vegetable deoxidizing preservative comprises the following raw materials: 1ml of 1mol / L sulphuric acid, 0.8 to 1.2g of active carbon, 0.2ml of plant essential oil, 4ml of anhydrous alcohol, 1.5 to 2g of Al2O3, 1.5 to 2.5g of iron powder, 3 to 6g of sodium polyacrylate, 0.3 to 0.6g of CaO, 0.2 to 0.5g of Ca(OH)2 and 0.4 to 0.7g of diatomaceous earth. The invention also discloses a method for preparing the compound fruit-vegetable deoxidizing preservative. The compound fruit-vegetable deoxidizing preservative prepared by the method can make undamaged full use of the reduction iron powder therein, and reduces the oxygen content in a fruit-vegetable storing environment so as to slow down the respiration of fruit and vegetable; moreover, the preservative adjusts the humidity of a storing environment and releases micro ethanol and plant essential oil so as to obtain the effect of fruit-vegetable preserving.

The invention discloses a round intelligent fuel cell humidifier, which comprises a cylindrical humidifier main body, wherein at least four humidifying areas are arranged in the humidifier main body along the axis circumference and include a fuel gas humidifying area, an oxidant gas humidifying area and at least two public humidifying areas; a plurality of humidifying units are distributed in each humidifying area; each humidifying unit comprises a cylindrical gas flow field plate, a permeable humidifying membrane and a humidifying medium flow field plate; each humidifying medium flow field plate sleeves the outer side of the corresponding permeable humidifying membrane; a plurality of gas channels are arranged on the side wall of each gas flow field plate; the gas channels are sealed through the permeable humidifying membranes; and hollow cavities between the humidifying medium flow field plates and the permeable humidifying membranes are medium channels. The gas humidifying humidity can be more effectively controlled and the utilization rate of the humidifier is more intelligently improved through system control and humidifying partition design; stabilization and improvement of the stack performance are facilitated; the performance of a fuel cell is improved; and the lifetime of the fuel cell is prolonged.

The invention discloses a production process of a silk floss and cashmere semi-worsted yarn. Mercerized wool fibers are obtained through hydrogen peroxide treatment instead of traditional chlorinatingagent treatment, so that the pollution to the environment and the harm to the human body are reduced; according to a dyeing process of mercerized wool, the shrink-proof performance of the wool fiberscan be obviously improved and the relative humidity in the processes of cotton carding, drawing, roving and spinning is effectively controlled; and meanwhile, by adding an oil agent prepared from anantistatic agent, wool oil and silica sol, the electrostatic problem in the spinning process is solved, the yarn quality is guaranteed, the prepared silk floss and cashmere semi-worsted yarn has the breaking strength of 15.6-16.4 N / tex and the breaking elongation rate of 3.9-4.4% by measurement according to GB / T 3916-2013, and the technical problems that the semi-worsted yarn is easy to break, static electricity is easily generated in the spinning process and pollution is easily caused in the preparation process in the prior art are solved.

The invention discloses a honeycomb transport ship. The honeycomb transport ship comprises a cargo hold area, the cargo hold area is internally provided with six cargo holds with the same cross-section shapes, the six cargo holds are circumferentially distributed and adjacent to each other in pairs, and the adjacent cargo holds are divided by main bulkheads; a water ballast tank is arranged between each cargo hold and the outer wall of the cargo hold area; auxiliary bulkheads for dividing inner cavities of the cargo holds into honeycomb shapes are arranged in the cargo holds, the auxiliary bulkheads divide the inner parts of the cargo holds into a plurality of cargo holes, the cargo holes extend longitudinally along the ship, and the cross sections of all the cargo holes are shaped like regular hexagons with the same size; the adjacent cargo holes are divided by the auxiliary bulkheads; the inner end parts of the six cargo holds form a pipe tunnel area in a sounding mode; and the crosssection of the cargo hold area is composed of the six cargo holds, the six water ballast tanks and the pipe lane area. According to the honeycomb transport ship, the structure is exquisite, and materials are saved; and the bulkhead plate structure has good self-bending resistance, large section modulus, and high longitudinal strength.