36 results about "Ozone depletion" patented technology

The present invention is directed towards a method of stabilizing thermosetting foam blends such as polyurethane poly blends containing a blowing agent with negligible (low or zero) ozone-depletion and low GWP based upon unsaturated halogenated hydroolefins in which one or more ester is added to the thermosetting foam blends. The thermosetting foam blends typically in clued: polyol(s); surfactant(s); catalyst(s); flame retardent(s); organic acid inhibitor(s)/stabilizer(s); carbon dioxide generating agent(s). The addition of the one or more esters to the thermosetting foam blends was unexpectedly found to result in blends which were stable over time and the resulted foams have a uniform cell structure with little or no foam collapse.

An improvement in a method for providing localized cooling of tissue when thermally mediated by electromagnetic radiation comprises directing at least one spurt of a heat transferring substance onto a selected location on the tissue, and preventing ignition of the heat transferring substance by heating from the electromagnetic radiation. Preferably liquid carbon dioxide under pressure is supplied as the heat transferring substance, and adiabatically expanded to provide a solid carbon dioxide spray onto the selected location.

The invention relates to a non-combustible mixing refrigerant suitable for deep refrigeration temperature of minus 80 DEG C to minus 100 DEG C. The non-combustible mixing refrigerant comprises five groups of materials, where the first group of material is tetrafluoromethane; the second group of material is trifluoromethane, hexafluoroethane or a mixture of the trifluoromethane and the hexafluoroethane; the third group of material is pentafluoroethane, trifluoroethane, perfluoropropane, difluoromethane or a mixture of two, three or multiple of the pentafluoroethane, the trifluoroethane, the perfluoropropane and the difluoromethane; the fourth group of material is iodotrifluoromethane, 1, 1, 2, 2-tetrafluoroethane, 1,1-difluoroethane, 2, 3, 3, 3-tetrafluoropropene, 1, 3, 3, 3-tetrafluoropropene or a mixture of two, three or multiple of the iodotrifluoromethane, the 1, 1, 2, 2-tetrafluoroethane, the 1,1-difluoroethane, the 2, 3, 3, 3-tetrafluoropropene and the 1, 3, 3, 3-tetrafluoropropene; the fifth group of material is perfluoro-n-butane, 1, 1, 1, 3, 3-perfluoropropane or a mixture of the perfluoro-n-butane and the 1, 1, 1, 3, 3-perfluoropropane; the molar concentrations of the five groups of materials are respectively 25-50%, 15-40%, 10-30%, 5-20% and 10-25%; and the non-combustible mixing refrigerant is safe in a back-heating type throttling refrigeration system, can realize the refrigeration in the temperature range of minus 80 DEG C to minus 100 DEG C and has low whole green house effect without ozone depletion effect.

An apparatus for the decontamination of air, the apparatus comprising a housing (1) having an air inlet (4) and an air outlet (6) with an air passage (2) there between, means (20) for directing a stream of air through the housing, the housing containing a non-thermal plasma cell (30), an ultraviolet emitting device (40) and an ozone depletion catalyst (42), the non- thermal plasma comprising an anode (32), a dielectric (32) and a cathode (33), the cathode being in the form of a meshed enclosure which surrounds the ultraviolet emitting device and ozone depletion catalyst to form a reaction chamber and Faraday cage. The non-thermal plasma cell may also be provided as a columnar cell for forming an array of cells and the dielectric may comprise water droplets to improve the efficiency of the device.

The invention relates to an environment-friendly hydrocarbon cleaning agent, which belongs to the field of industrial cleaning agent. The environment-friendly hydrocarbon cleaning agent comprises the following components in percentage by weight: 40 to 80 percent of C12H26, 10 to 30 percent of C3H3F5, and 10 to 30 percent of C2H5OH. The environment-friendly hydrocarbon cleaning agent has high cleaning capacity and can volatilize completely without leaving any residue, and the ozone depletion coefficient of the environment-friendly hydrocarbon cleaning agent is 0.00. The environment-friendly hydrocarbon cleaning agent is safe for the environment and human body and is an optimal substitute for ozone depleting substance (ODS) cleaning agent.

A water based antirust cleaning agent disclosed in the invention, comprises surfactant, water based passivant, builder, antifoaming agent and water. The cleaning agent features simple formulation, being easy to operate, good cleaning function on oil on a workpiece surface in metal processing, little foam in cleaning process and long service life, forms an antirust film on the workpiece surface after cleaning to realize rust protection during the process, and solves a technological bottleneck in the field of chemical cleaning agent, making an ideal balance between the performance of cleaning and antirust. The cleaning agent contains no ODS (ozone depletion substances), phosphate and nitrite, belonging to an environment-friendly product.

The invention relates to the technical field of environmental testing instruments and in particular relates to an ozone aging test box. The ozone aging test box comprises a box body, an electrical cabinet, a refrigerating system, an ozone generating system, an ozone detection system and an electrical system, wherein a box door is arranged on the front side of the box body; an observation window is formed in the box door; an ozone chamber is formed inside the box body; an ozone rack is arranged in the ozone chamber; the ozone detection system comprises an evaporator, a gas-liquid separator and an ozone sensor; the ozone sensor is arranged outside the ozone chamber; one end of the evaporator is connected with an exhaust hole of the ozone chamber through a pipeline; the other end of the evaporator is connected with an air inlet of the gas-liquid separator through a pipeline; an air outlet of the gas-liquid separator is connected with the ozone sensor through a pipeline; the ozone sensor is connected with the electrical system through a circuit. Compared with the prior art, the ozone aging test box has the advantages that the ozone sensor is convenient to mount and maintain, the test box is not influenced by temperature and humidity in a workroom, the service life is long, the accuracy of detection concentration of the ozone sensor is guaranteed, and the degree of automation is high.

Disclosed are: a dewatering agent which exhibits good dewatering performance in removing water sticking to the surface of a subject to be washed, has a low toxicity and a low flammability and is free from the ozone depletion problem; a pre-rinsing agent; and a dewatering method and a dewatering device using the same. Specifically disclosed is a dewatering agent (a) containing a glycol ether [component (a1)] which lowers the solubility of water when liquid temperature is increased.

The invention discloses a system for optimizing ozone operation during a coking gas desulfurization and denitrification process, which comprises a working condition judgment system, a timing module, a process model module, and a decoupling and control module, wherein the working condition judgment system is used for determining the current production working condition according to real-time data during the desulfurization and denitrification process; the timing module is used for determining a commutation period according to the determined current production working condition; the process model module is used for determining a process model according to the determined current production working condition; and the decoupling and control module is used for carrying out decoupling and control on the denitrification process according to the commutation period and the process model, and thus, the ozone output amount during the denitrification process is fit to nitrogen oxide concentration changes in the gas, and the nitrogen oxide output concentration is ensured to be only influenced by the ozone output amount. The invention also discloses a method of optimizing the ozone operation during the coking gas desulfurization and denitrification process. Control on the denitrification process can be realized, the denitrification process is ensured to be strictly below the environmental protection requirements, and the ozone use amount and the operation cost are reduced maximally.

Provided is a cleaning agent or the like, which exhibits high cleaning power with respect to processing oils that contain a large amount of a poorly soluble component, and which has less possibility of ozone depletion and global warming. A cleaning agent composition contains (A) a fluoropropene compound represented by general formula (1) and (B) one or more compounds selected from the group consisting of organic compounds having an ether bond and/or an ester bond, hydrocarbons and polyhydric alcohols, each one of which has a vapor pressure at 20 DEG C of 1.33*10<-2> Pa or more but less than 1.33*10<3> Pa. In the formula, C3H(6-a-b)FaClb (1), a represents an integer of 1-5 and b represents an integer of 1-3, provided that (a+b) is an integer of 2-6.

The invention relates to a secondary-ozone-depletion-allowable microwave photocatalytic wastewater degradation reactor capacity-expansion method, belonging to the technical field of wastewater treatment. The existing correlation technique has the problems of weak entrapment link, overlow single-tank capacity of the reactor, high frequency of repetitive operation, insufficient interior liquid circulation intensity, incomplete ozone utilization, indistinguishable end time of degradation reaction, and the like, and the scheme provided by the invention aims at the problems above. The method mainly comprises the following steps: limiting a microwave radiation region; bunching a rising gas bubble flow, and guiding the gas bubble flow to an intensive degradation reaction region; carrying out cascade interception on the catalyst particles with an external cascade three-stage back-flush filter; and arranging an ozone sensor at an exhaust emission port, and transmitting the output electric signal to a power supply controller connected with a magnetron and an air pump. The method can immediately shut down the energy implantation to the reactor and immediately terminate the ozone generation process when the degradation reaction reaches the end point, thereby preventing secondary pollution.

The invention relates to an expansion method without ozone pollution for a non-polar ultraviolet catalytic waste water degradation reactor and belongs to the technical field of waste water treatment. The problems that microwave energy is wasted, the single-tank waste water treatment capacity is small, the oxygen supply concentration ratio of key areas is not enough, catalyst particle interception step is weak, the degradation reaction endpoint time is difficult to distinguish, etc. exist in the existing related technologies. For solving the problems, the invention provides the scheme which mainly comprises the following steps of: parting a microwave irradiation airspace; expanding the size of the reactor; guiding bubble flow so that the bubble flow is released to the key areas with high intensity; intercepting nanometer photocatalyst particles level by level by virtue of an external cascaded three-level back flush type filter; and erecting an ozone sensor on a tail gas discharge outlet and transmitting an electric signal output by the ozone sensor to a power supply controller connected with a magnetron and an air pump. By utilizing the expansion method, energy injection to the reactor can be closed immediately and the ozone generation progress can be stopped immediately when degradation reaction comes to the end. By utilizing the expansion method, energy waste is avoided, and secondary pollution is eliminated.

The invention belongs to the technical field of atmospheric monitoring, and relates to an online monitoring system for ozone depletion substances. The system comprises a cold trap on-line sampling pre-concentration system combining semiconductor refrigeration with an ultra-strong adsorbent; an on-line low-temperature Nafion membrane water removal device is connected to a sample introduction end; the sampling pre-concentration system is sequentially connected with a gas chromatograph and a quadrupole mass spectrometer and is connected with a workstation computer of the pre-concentration gas chromatograph and quadrupole mass spectrometer. The system is mainly applied to continuous monitoring of ozone depletion substances (ODS) in ambient atmosphere and quantitative analysis of 21 ODS targets, and is good in compound separation degree and high in qualitative accuracy.

The invention discloses an ozone decomposition experiment device and belongs to the technical field of environmental protection. The ozone decomposition experiment device disclosed by the invention comprises an air pump, an ozone generating device, a catalytic reaction tower and an ozone detection system, wherein an air outlet pipe of the air pump is connected with an air inlet of the ozone generating device; the air outlet of the ozone generating device is respectively connected with inlets of a porous gas washing bottle and a gas drying tower through pipelines; outlet pipelines of the porous gas washing bottle and the gas drying tower are merged and then connected with the air inlet of the catalytic reaction tower; and the ozone detection system is used for online monitoring the ozone concentration at the air inlet and air outlet of the catalytic reaction tower. The ozone decomposition experiment device disclosed by the invention can effectively increase the accuracy of an experiment result and is favorable for providing the scientific guidance to technicians in the fields of environments and materials for researching the process and principle of catalytically decomposing ozone so as to guarantee the ozone decomposing effect in practice.

The invention discloses an adjustable type CO2 heat pump triple-generation circulating device comprising a circulation loop formed by sequentially connecting a throttle valve, an evaporator, a compressor and a condenser, wherein a CO2 gas is adapted as a circulating working substance; the condenser is connected with a running water system and an air-conditioning system; the evaporator is connected with a heat exchange system; a first bypass and a second bypass are connected between the condenser and the heat exchange system; a third bypass and a fourth bypass are connected between the evaporator and the air-conditioning system; and the first bypass, the second bypass, the third bypass and the fourth bypass are respectively provided with valves. The invention can realize the refrigerating and heating functions and the domestic hot water heating of the traditional air conditioner by setting the open and close states of the valves, heat the running water from environmental temperature to 80 DEG C and reduce the consumption of high-quality energy sources, thereby finally achieving the purposes of energy saving and emission reduction; and in addition, the invention selects the applicable natural working substance CO2 with a GWP (Global Warming Potential) value and an ODP (Ozone Depletion Potential) value about 0, thereby reducing the influence on greenhouse effect and ozone depletion.

The invention belongs to the field of special cleaning substances and provides a cleaning composition. The cleaning composition comprises (A) an iodo-bromobenzene propene compound shown as a formula (I), (B) a surfactant shown as a formula (2), (C) at least one salt agent composed of alkaline earth metal salts and (D) a chlorine agent, wherein the formula (I) is C9H(10-a-b-c)DaIbBrc(I). The cleaning composition has advantages of high storage stability, and a high cleaning effect on stains containing a great quantity of insoluble processing oil components and/or water-soluble processing oil components is achieved; in addition, the cleaning component has slight influences of ozone depletion or global warming, is low in foaming for dirt treatment and less prone to incrustation and has bleaching and bactericidal functions.

A non-aqueous solvent composition and method for cleaning and removing oleaginous materials such as hydraulic fluids from reinforced-fiber composites characterized as a cleaning composition free of ozone depletion materials, having a low vapor pressure, a flash point above 140° F., and consists essentially of cyclohexenes, isoparaffinic hydrocarbons, dearomatized hydrocarbons and corrosion inhibitors.

The invention discloses an environment-friendly cooling fan, comprising a base, a vacuum pump, a connecting water pipe, a water tank, a closed narrow-necked funnel, a vertical column, a protective net cover, an incomplete annular copper pipe, a blade hub, a blade, a motor installation box, a connection ring, Ammonium nitrate, an on-off valve and a water outlet pipe, a vacuum pump and a water tank are installed inside the base, a column is installed above the base, a motor installation box is installed above the column, the water inlet end of the vacuum pump is connected to the bottom of the water tank through a connecting water pipe, and the water outlet of the vacuum pump The end is connected to one end of the incomplete annular copper pipe installed on the protective net through the connecting water pipe, and the other end of the incomplete annular copper pipe is finally connected to the water tank through the connecting water pipe, and its connection point is higher than the liquid level in the water tank. Compared with the traditional electric fan, the fan can bring coolness to the user, and compared with the air conditioner, there is no need to worry about the environmental problems of freon pollution and ozone layer hole.