129 results about "Atmospheric ozone" patented technology

The invention provides a circulating refrigerating method. As a refrigerant is expanded, the flow speed of the refrigerant is increased, kinetic energy is increased, pressure and temperature are reduced, the refrigerant absorbs heat of a cold medium in an evaporator to be evaporated, the cold medium releases the heat to reduce the temperature to achieve refrigerating, the refrigerant absorbing the heat is expanded, the flow speed is increased, the refrigerant enters a diffusion pipe to be compressed, the flow speed is reduced, the pressure and the temperature rise, refrigerant steam enters a condenser to be condensed into liquid, the refrigerant releases the heat to be condensed into the refrigerant liquid to enter a liquid pump so that refrigerating circulation can be formed, the evaporation degree of the refrigerant entering the diffusion pipe is not limited, water can be used as the refrigerant, the problems that the refrigerant like Freon destroys the atmospheric ozone layer, and equipment is corroded by a chemical absorption agent used in a liquid-steam absorption system in the refrigerating process are solved, the refrigerant absorbs the heat of the low-temperature cold medium in the evaporator, and releases the heat in the condenser through diffusion and temperature rising, the cooling medium obtains the heat, and the temperature rises to supply the heat. The invention provides a refrigerating circulating system.

The invention provides a refrigerant applied to an automobile air conditioner for replacing HFC-134a. The refrigerant contains 2,3,3,3-tetrafluoropropylene (HFO-1234yf) and 1,1-difluoroethane (HFC-152a) or isobutane (HC-600a); a preparation method is achieved by physically mixing various components according to corresponding mixture ratio under liquid phase. The refrigerant is equivalent to the physical property of the HFC-134a, is compatible with pipelines and components of the prior HFC-134a system, has safe use, higher refrigeration efficiency and quite low slipping temperature, is free from damaging an atmospheric ozone layer and has quite low GPW value and shunt replacement fee. The refrigerant can be used as a replaced refrigerant of the HFC-134a of the automobile air conditioner.

The invention relates to a tomography method of using the limb sounding data for inverting atmospheric ozone profiles. The method comprises the following steps: respectively calculating the intersections between the gaze vector and the atmospheric grid radial and vertical boundary and atmospheric layer horizontal boundary, merging two types of intersections, then calculating the distance between adjacent intersections to obtain intercept; applying the tomography method in a correlate equation about volume emissivity and radiance, using the square iterative reconstruction technology to obtain the inverse iteration model of the volume emissivity, calculating the volume emissivity; and finally using an oxozone photochemical model to connect the volume emissivity with the ozone number density, and selecting the Newton iteration method to invert the ozone profiles.

The invention discloses an environmental protection method for preparing hexafluropropylene oxide from hexafluoropropylene by dioxygen liquid phase oxidation method. The method employs at least one supercritical fluid as solvent for replacing the CFCs with destructive effect to atmospheric ozone layer. The supercritical fluid as solvent is used in the invention which can reduce induction period of reaction and prevent the temperature raise in short time at the beginning of reaction.

It is about ocean provided cold tap water as the cooling media for architectural air conditioning system. It comprises ocean water filter, water drawing pipeline, water flow sensor, stop valve, multiple-stage centrifugal pump, three way valve, rapid filter, precipitation filter, secondary filter, underground ocean water reservoir, sea water pump, plate heat exchanger, water transmitting pump, underground cold water reservoir, water service pump, air cooling processor, purified water tank, butterfly valve and return pipe. The cold ocean water after treatment through the rapid filter, precipitation filter, and secondary filter exchanges heat with tap water inside the plate heat exchanger, using the original municipal underground pipeline network to transmit tap water, playing both roles of water transmission and cooling. It makes full use of the coldness of the subsurface water, saving a lot of electric power, free from the damage of Freon to the atmospheric ozone layer and it is beneficial to environment protection. It has significant economic and social effects.

The invention provides a method for preparing intermediate compound (E)-2-(2'-bromomethyl) phenyl-3-methoxy methyl acrylate of bactericide. The method comprises the following steps: 1) in the presence of a catalyst, o-tolyl-acetic acid reacts with methanol, and the catalyst is selected from sulfuric acid or paratoluenesulfonic acid; 2) in the presence of alkali, the product of step 1) reacts with alkyl formate; 3) in the presence of alkali, the product of step 2) reacts with methylating reagent; 4) in the presence of catalyst, the product of step 3) reacts with halogen, wherein the dosage of the halogen is between 1.0 and 1.5 mol against that of the product of step 3), and the obtained product is recrystallized in solvent methanol to obtain a pure compound, the catalyst is selected from azodiisobutyronitrile or dibenzoyl peroxide, and the solvent is selected from benzene, carbon tetrachloride or cyclohexane. The method avoids using expensive solvent, or methyl chloride gas which has higher toxicity and influences the atmospheric ozone layer as the methylating reagent, thereby meeting the requirement of environmental protection.

The invention relates to acrylics, in particular to aqueous acrylic acid aerosol paint. The aqueous acrylic acid aerosol paint includes the chemical components (counted in weight percentage) as follows: 15 to 20wt percent of etherified-modified aqueous acrylic acid resin, 2 to 5wt percent of coloring dye, 0.1 to 1.0wt percent of flatting thickening agent, 0.1 to 0.5wt percent of foam killer, 2 to 15wt percent of latent solvents, 20 to 35wt percent of water, 40 to 45wt percent of dimethyl ether as well as 0.5 to 1.0wt percent of addition agent. The invention also provides a preparation method of the aqueous acrylic acid aerosol paint, solves the compatibility problem between a propellant and the material of an aqueous aerosol, eliminates the loss of an atmospheric ozone layer, greatly reduces the content of VOC, lightens the pollution to the environment, also eliminates the problem of the flame length for product burning, leads the whole production process to be more environment-friendly and safer as well as is beneficial to the body health of a worker.

The invention discloses an engine waste heat recycling system utilizing organic working medium as cooling liquid. The engine waste heat recycling system is connected with an engine, a cooling tube in the engine, a power transmission system and a vehicle/ship-mounted fan heater and comprises a turbine, an air-cooled condenser, a liquid storage tank, a cooling liquid circulation pump, a flash evaporator, a throttle valve, an engine waste heat recycling device and first to twelfth solenoid valves. The organic working medium which is free of toxicity and damage to human bodies, is odorless, has no destructive effect or less destructive effect on the atmospheric ozone layer, and is good in thermal transfer, small in gas specific volume and large in steam pressure is selected instead of water to serve as the cooling liquid. By recycling engine cooling heat and engine tail gas waste heat, the temperature of the organic working medium rises to form high-pressure steam which drives the turbine to output power which can drive a vehicle/ship-mounted air conditioner compressor and can also serve as part of the power supplied to the engine. Under the same engine waste heat recycling system, refrigerating, heating and power supply can be switched through a plurality of modes, the energy utilization rate is improved, energy consumption is reduced, and operation cost of automobiles/ships can be reduced.

The invention discloses a simulation experiment device for atmospheric ozone aging. The simulation experiment device for atmospheric ozone aging in the invention can well simulate the aging phenomenonof an object in an ozone environment; a rotary clamping assembly is arranged to realize clamped rotation of an object to be tested, and a pressure control assembly is cooperatively utilized; so aginginfluence on the object due to friction in high-speed rolling in reality can be well simulated, the experimental effect of ozone aging can be improved, actual atmospheric ozone aging phenomenon can be simulated and researched, and an experimental data basis is provided for dealing with ozone aging.

The invention discloses a satellite remote sensing atmospheric ozone profile inversion algorithm, which comprises: 1, carrying out radiation calibration and wavelength calibration by using an ozone monitoring instrument OMI; 2, carrying out radiation transmission model and weighting function calculation; and 3, inverting atmospheric ozone profile information based on an optimal estimation technology algorithm by using the radiation spectrum simulation value and the weighting function parameter calculated in the step 2 after the radiation calibration and the wavelength calibration of the ozonemonitoring instrument OMI are completed. According to the present invention, the algorithm is established by using the OMI ultraviolet radiation spectrum data and selecting the fitting wave bands UV-1and UV-2, and can invert the atmospheric ozone profile information from the earth surface to the 60 km atmosphere based on the optimal estimation technology, wherein the atmospheric ozone profile information comprises the total ozone column concentration, the troposphere ozone column concentration and the stratosphere ozone column concentration, such that the troposphere atmosphere ozone profileis accurately inverted; and the method can be used for analyzing the relationship between atmospheric ozone convective motion, exchange processes, biomass burning and human pollution, and tracking thetemporal and spatial transport of ozone.

The invention discloses a fully-closed double-screw typed ammonia refrigerating compressor, which comprises an air inlet pipe, an exhaust pipe, a motor and a double-screw typed compression device; wherein, a magnetic coupling is connected between the motor and the double-screw typed compression device. The coupling comprises a shield sleeve; an opening part of the shield sleeve is fixedly arranged on an opening part of double-screw typed compression device housing, and forms a sealed cavity body with the compression device housing. The compressor can adopt ammonia as a refrigerant so as not to destroy the atmospheric ozone layer and generate greenhouse effect, thereby having excellent environmental protection and energy-saving performance. The compressor can be applied to the refrigeration of air conditioning, vehicles, boats, small refrigeration storage or other fields requiring air compression.

The invention discloses a heat pump mixed working medium. The heat pump mixed working medium comprises, by mass, 30-55% of a halogenated olefin and 45-70% of carbon dioxide, and the standard boiling point of the halogenated olefin is -21 DEG C or above. The invention also discloses an application of the heat pump mixed working medium. The heat pump mixed working medium is applied to medium and high temperature heat pumps with a heating temperature of 55 DEG C or above. The heat pump mixed working medium provided by the invention does not damage the atmospheric ozone layer, produces a small greenhouse effect, is very suitable for heating in cold regions, and has better thermal parameters and thermal performances than R134a.

The invention relates to an aerosol, which consists of vesicant and propellant. The vesicant is mixture solution of anionic surfactant and alkyl alcohol amide used as foam stabilizer and solubilizer; the propellant is a compound of alkanes and hydrochloroflurocarbons (HCFC). The aerosol is environment friendly with little impact to the atmospheric ozone layer, has safe use without burning and explosion, has realistic effect for building snowscape and is used for the situations such as happy event and stage set.

The invention provides a low-pressure steam, high-pressure steam and high-temperature hot water triple-supply water actuating medium heat pump system. The system comprises a low-grade waste heat recovery heat pump subsystem and a steam hot water triple supply subsystem, wherein the low-grade waste heat recovery heat pump subsystem and the steam hot water triple supply subsystem both adopt a wateractuating medium, and the low-grade waste heat recovery heat pump subsystem is connected with the steam hot water triple supply subsystem through a condenser. According to the system, the natural water actuating medium is used as a working medium of the whole heat pump system, the water actuating medium has no damage effect on atmospheric ozone, the greenhouse effect is not generated basically, the use of an artificial synthetic actuating medium with high damage to an ozone layer and high greenhouse effect is avoided, and the environment is effectively protected.

The present invention discloses a preparation method of tetrafluoroethylene-hexafluoropropylene copolymer, and is characterized by that it adopts the following steps: making specified monomer implement copolymerization in monomer medium or fluorine-contained solvent whose atmospheric ozone is safe, its temp. is at 25-50 deg.C and pressure is 1.1-1.5 MPa, initiator is perfluorinated initiator group, in the course of polymerization process using pre-added mixture and post-added mixture, then removing unreacted monomer, heating the obtained copolymer powder to remove residual initiator, after the copolymerization process is completed, cooling resultant of reaction, reducing pressure to 0.3-1.0 MPa and placing it into a closed container, then removing unreacted monomer and solvent by utilizing the measure of progressively heating while stirring so as to obtain the invented product.

The invention relates to a signal detection circuit of an atmospheric ozone sonde. The signal detection circuit of the atmospheric ozone sonde comprises a microcurrent signal detection circuit connected with the output end of an atmospheric sensor, wherein the microcurrent signal detection circuit comprises a chopping self-stabilization zero amplifier, the anti-phase end of the chopping self-stabilization zero amplifier is connected with the output end of the atmospheric ozone sensor, the in-phase end of the chopping self-stabilization zero amplifier is grounded, the anti-phase end of the chopping self-stabilization zero amplifier is connected with the output end of the chopping self-stabilization zero amplifier through a second resistor, and two ends of the second resistor are in parallel connection with a fourth capacitor. The output end of the chopping self-stabilization zero amplifier is connected with a low-pass filter, and the chopping self-stabilization zero amplifier converts microcurrent signals output by the atmospheric ozone sensor into voltage signals through the low-pass filter and outputs the voltage signals. The signal detection circuit of the atmospheric ozone sonde is simple and compact in structure, improves response speed and detection accuracy, reduces measuring errors, and is wide in application range and safe and reliable.

The invention discloses a convenient early warning method for atmospheric ozone pollution, and the method comprises the steps: (1) obtaining physical parameters, including air temperature, total solar radiation irradiance, cloud amount, particulate matter concentration and nitrogen oxide concentration, affecting the generation of atmospheric ozone through analyzing the external conditions of the generation of atmospheric ozone; (2) determining inflection point values of the physical parameters according to atmospheric ozone generation conditions, and assigning values after interval division; (3) acquiring historical data of physical parameters related to atmospheric ozone generation in a to-be-warned region within a period of time, and obtaining a weight of each physical parameter by utilizing a constructed Logistic regression model; and (4) calculating an ozone concentration influence factor result value according to the interval assignment result and the weight of the physical parameters, and determining an early warning interval and a corresponding early warning level. The method provided by the invention is convenient to implement, improves the early warning advance, and has certain guiding significance for atmospheric ozone pollution prevention and control work.

The invention discloses an environment-friendly type refrigerant for substituting CFC-12, wherein the refrigerant comprises hydrofluoeic ether (HCF-161), 1,1-difluoroethane (HCF-152a), 1, 1, 1, 2-tetrafluoroe (HFC-134a), wherein the mass percents are, HFC-161 1-50%, HFC-152a 1-50%, HFC-134a 30-90%, ,the ODP value of the refrigerant is zero, compared with CFC-12 and the existing main substitute HFC-134a, the refrigerant causes no damage to atmospheric ozone layer, it has smaller GWP value, thus meets the requirement for environmental protection, the refrigerant provided by the invention can serve as the long-term substitute for CFC-12.

The invention provides a refrigerant composition which is applied to household air conditioner/heat pump and other systems for replacing an R22 refrigerant. The refrigerant consists of 10-90 percent of propane (R290) and 90-10 percent of fluoroethane (R161). A preparation method of the refrigerant composition is to physically mix the components according to corresponding mixture ratio under liquidphase. The refrigerant composition has quite similar physical parameters with the R22, has small slip temperature, is compatible with a pipeline and a component material of an R22 system, has higherrefrigeration efficiency and better energy-saving effect after replacing the R22, does not damage an atmospheric ozone layer and has low effect potential.

The invention discloses polyurethane integral skin foam and a preparation method thereof, and relates to the field of high polymer materials. The foam is prepared from a material A and a material B according to the weight ratio of 5 to 2-3, wherein the material B is modified MDI; the material A is prepared from the following raw materials in parts by weight: 70 to 80 parts of polyether polyol, 0.5to 2 parts of a hole opening agent, 0.5 to 1.5 parts of a foam stabilizing agent, 1 to 5 parts of a silicone surfactant, 1 to 5 parts of A-1, 1 to 5 parts of a PC-77 catalyst, 1 to 3 parts of diethylenediamine, 2 to 8 parts of ethylene glycol, 1 to 5 parts of an A33 catalyst and 0.5 to 1.5 parts of water. According to the application, water serves as a foaming agent completely and does not contain Freon which damages the atmospheric ozone layer; the polyurethane integral skin foam has high elastic resilience, wear resistance and impact resistance when the polyurethane integral skin foam is used for an automobile steering wheel, and further has the advantages of low odour, environmental friendliness, pollution free and the like, and can reach the hardness of 58 to 68 (shore A), the resilience of greater than or equal to 50 percent, the odour (23 DEG C) of level 1.4, the odour (40 DEG C) of level 2.0, the odour (80 DEG C) of level 2.5, and the VOC value of less than or equal to 55 mu g/m<3>.