9 results about "Ozone layer" patented technology

The present invention provides a system (1) to prevent the formation of fuel vapors comprising a containment tank (10) and a variable volume tank (12) accommodatable within the containment tank (10), wherein the variable volume tank (12) is configured to receive liquid fuel. Our invention can be used in any tanks or reservoirs of liquid products that attack the ozone layer, preventing the formation of vapors that are extremely harmful to nature and the environment.

The invention discloses a gas composition for inhibiting combustion explosion of hydrogen, the gas composition comprises an inhibiting gas and an inert gas, the inhibiting gas comprises saturated hydrocarbon with the carbon atom number of 1-4, and the saturated hydrocarbon comprises methane or n-butane; or the inhibiting gas comprises unsaturated hydrocarbon with the carbon atom number of 1-4, and the unsaturated hydrocarbon comprises isobutene or 1, 3-butadiene. Therefore, according to the gas inhibitor, the synergistic inhibition effect is achieved through the combination of the special inhibition gas and the inert gas, the inhibition efficiency of the inert gas can be improved, the ozone layer of the atmosphere is not damaged, and safety is improved, and the fire risk and pollution emission are reduced. Compared with pure use of the inert gas, the use amount of the inert gas can be reduced by adding the inhibiting gas, resources are saved, and the inhibiting effect and the inhibiting efficiency are improved. And the use of the inhibiting gas does not damage the atmospheric ozone layer, and meanwhile, has no corrosivity, does not damage equipment, and has the characteristic of environmental friendliness.

The utility model relates to a monitoring device for ozone depleted substances and hydrofluorocarbon in atmosphere, and belongs to the technical field of chromatography-mass spectrometry. According to the scheme, the device mainly comprises a target object trapping pipeline which comprises a trapping module used for trapping a target object in sample gas; the focusing analysis module is used for performing focusing and chromatographic separation on the target object and then performing detection; the analysis pipeline comprises an analysis carrier gas inlet and a trapping switching module, and the trapping switching module is used for enabling the two ends of the trapping module to be connected with the analysis carrier gas inlet and the focusing analysis module respectively; the purification pipeline comprises a capillary chromatographic column purification module, the capillary chromatographic column purification module is used for removing interferents in a target object, and when the purification pipeline is in a first state, the inert gas sequentially passes through the trapping module and the capillary chromatographic column purification module; in the second state, the inert gas sequentially passes through the capillary chromatographic column purification module and the trapping module.

The invention discloses a comprehensive evaluation method for the performance of monitoring equipment for atmospheric trace ozone depleting substances. The method belongs to the field of performance evaluation of atmospheric trace ODS monitoring equipment. Comprising three links of static precision evaluation, dynamic long-period test evaluation and data consistency evaluation. In the static precision evaluation, working standard gas and an ambient air sample are measured, and the separation capacity and the measurement precision of the equipment on multiple target objects are investigated; the dynamic long-period test evaluates the long-term stability and reliability of the equipment by paying attention to key performance indexes of the equipment in a real operation environment; data consistency evaluation depends on gold standard equipment to carry out synchronous station testing, and the consistency level between data is evaluated by utilizing a statistical method. Different weights are given according to the importance of each index, and the weighted comprehensive evaluation score of the equipment is calculated so as to scientifically quantify the overall monitoring performance of the equipment. According to the method, the comprehensive performance of the atmospheric trace ODS monitoring equipment can be systematically evaluated, and the reliability and comparability of monitoring data are effectively improved.

The application relates to the field of semiconductor electronic devices and discloses a cloud layer thunder and lightning monitoring device based on a gallium oxide heterojunction detector array, characterized by comprising a c-Al2O3 substrate, a beta-Ga2O3 functional layer, a DPh-DNTT functional layer and a metal electrode; the beta-Ga2O3 functional layer is located on the c-Al2O3 substrate; the DPh-DNTT functional layer is located on the beta-Ga2O3 functional layer and covers part of the beta-Ga2O3 functional layer; and the metal electrode is arranged on the surface of the DPh-DNTT functional layer and the surface of the beta-Ga2O3 functional layer which is not covered. The application utilizes the solar blind ultraviolet response characteristics (200-280 nm) of the beta-Ga2O3 material, can accurately capture ultraviolet radiation generated by thunder and lightning, and provides a natural "dark background" due to the low near-ground background radiation of the wave band because of the absorption of the earth's ozone layer, thereby significantly improving the signal-to-noise ratio of monitoring. Moreover, the beta-Ga2O3 and the DPh-DNTT have obvious absorption peaks in the ultraviolet wave band, thereby ensuring high selective monitoring of the device on the characteristic signals of thunder and lightning.

The utility model discloses a one-with-two indirect heat pump rectification system, which comprises a light component removal tower and a product tower, an ester crude product is taken as a raw material and enters the light component removal tower firstly, a light component enters a light component removal tower return tank from the top of the light component removal tower through a light component removal tower condenser, and a part of the light component is returned and a part of the light component is extracted. Materials extracted from a tower kettle of the light component removal tower enter the product tower, water in a condenser of the product tower exchanges heat with materials at the tower top, absorbs heat and is evaporated into water vapor, the pressure and temperature of the water vapor are increased through a compressor, the water vapor is respectively sent to the tower kettle of the light component removal tower and the tower kettle of the product tower to heat kettle liquid, the water vapor is condensed into liquid, and the liquid returns to the condenser of the product tower after being throttled and decompressed. And heat at the low-temperature position of the tower top is transferred to the high-temperature position of the tower kettle through water. The device has the advantages that the cooling medium is water, the chemical and thermal stability of the water is good, the water has no negative effect on people and the ozone layer during leakage, the price is low, and the water has excellent heat transfer characteristic. And the one-two indirect heat pump rectification system is low in equipment investment and low in cost.

To provide a working medium for heat cycle which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (the efficiency and the capacity), and a heat cycle system excellent in the cycle performance (the efficiency and the capacity). A working medium for heat cycle comprising 1,2-difluoroethylene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system 10 or a heat transport system).

The invention discloses an ozone depleting substance gas sample information acquisition and tracing method. Belongs to the technical field of environment monitoring, and realizes information acquisition, abnormity prevention and control and intelligent tracing in the whole atmospheric ODS sampling process through automatic sampling plan pushing, sampling process real-time error-proofing verification, key operation image evidence, information encryption, packaging and uploading and LIMS (laboratory information management) seamless connection. All sampling information, operation logs and evidence information are automatically archived, and efficient retrieval and backtracking based on multi-dimensional conditions such as sample numbers, time and positions are supported. According to the invention, the accuracy, integrity and traceability of sample collection information are obviously improved, the informatization and intelligence level of environment monitoring management can be effectively improved, and the method is suitable for atmosphere ODS sampling work in environment monitoring and related fields.

We provide space rockets and satellites to prevent the depletion of the ozone layer. [Solution] An ultra-low-cost space rocket and artificial satellite whose exterior walls are made of specially dried wood with a moisture content of 0%, so that the cells are not easily destroyed.