19 results about "Ozone layer" patented technology

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 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 provides a dual-medium air-conditioning system, which relates to the field of industrial refrigeration and heating equipment, and comprises a main medium circulating system, an auxiliary medium circulating system and a control system, and further comprises a cabinet, the main medium circulating system, the auxiliary medium circulating system and the control system are integrated in the cabinet, and the cabinet is provided with an air inlet and an air outlet. The main medium circulating system and the auxiliary medium circulating system are electrically connected with the control system, under the control of the control system, refrigeration or heating operation of the air conditioning equipment is achieved, and the dual-medium air conditioning system is provided with a Freon system and water source dual refrigeration and heating system and can be used according to the actual situation of an application factory. Recycled water (low-temperature water or high-temperature water) of a factory is reasonably utilized, particularly low-temperature heat energy of underground water is reasonably utilized, the use amount of Freon is reduced, efficient refrigeration and heating are achieved, meanwhile, damage to the atmospheric ozone layer is reduced, meanwhile, the influence on underground water resources can be reduced through underground water recharge, and the effects of saving energy and reducing consumption are achieved.

The present application discloses a propane-rich mixed working fluid and its application. By screening a suitable working fluid with a standard boiling point lower than R290 and meeting environmental protection requirements, and mixing it with R290 in a certain proportion, a mixed working fluid with exhaust superheat, suction pressure, performance coefficient and heating capacity per unit volume higher than pure R290 is obtained, which solves the problems of insufficient oil viscosity and suction vacuum that may occur when a heat pump using propane as a working fluid is running at low ambient temperature, and not only makes up for the defects of pure R290 heat pump running under low ambient temperature conditions, but also improves the system's energy efficiency and can reduce the operating cost of the heat pump system. At the same time, the mixed working fluid also meets the current environmental protection requirements of protecting the ozone layer and reducing the greenhouse effect, and has broad application prospects.

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 belongs to the field of synthetic ester refrigerating machine oils, and relates to a synthetic ester refrigerating equipment lubricant which is base oil containing an ABC type molecular structure, and the specific molecular structural formula of the synthetic ester refrigerating equipment lubricant is base oil # imgabs0 #. Due to the special molecular structure, the synthetic ester type refrigerating equipment lubricant is suitable for a chlorofluorocarbon-free refrigerant, does not generate gas capable of destroying the ozone layer in the aspect of environmental protection, and solves the problem that part of the ozone layer is destroyed. The compatibility with a green and environment-friendly novel refrigerant is good. The hydrolysis is difficult, and the thermal stability is good.

The invention belongs to the field of environmental monitoring, and particularly relates to a method for analyzing ozone depleting substances in atmosphere by combining double columns with a center cutting technology, ODS is separated by combining two capillary chromatographic columns with different polarities with the center cutting technology, and qualitative and quantitative analysis is carried out by entering a mass spectrum through a TwinLine system. By adopting the method disclosed by the invention, 36 ODS in the atmosphere can obtain good chromatographic peaks and separation degrees, the detection limit of the method disclosed by the invention can reach below 1pmol / mol, the measurement precision under the concentration level of pmol / mol can reach within 3%, and the problems that the concentration level of the ODS in the ambient air is low and the ODS is difficult to accurately monitor are solved.

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.

This invention relates to a device and method for monitoring ozone-depleting substances and hydrofluorocarbons in the atmosphere, belonging to the field of chromatography-mass spectrometry analysis technology. The solution mainly includes: a target analyte collection pipeline, including a collection module, used to collect target analytes from sample gas and remove interfering substances; a multi-stage analysis pipeline, including an analysis carrier gas inlet and a temporary storage column switching module; and a focusing analysis module, used for focusing and chromatographic separation of the target analytes before detection; the analysis carrier gas inlet is sequentially connected to the focusing analysis module through the collection module and the temporary storage column switching module, and the multi-stage analysis pipeline is used to transport the target analytes to be analyzed in batches to the focusing analysis module.

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.

The invention relates to the technical field of atmospheric stratosphere nitric acid chloride vertical profile inversion, in particular to an atmospheric stratosphere nitric acid chloride vertical profile inversion algorithm based on foundation remote sensing. According to the technical scheme, the method comprises the following steps: determining a gas spectrum inversion fitting window, acquiring a C LONO2 gas spectral line parameter and an absorption cross section according to a high-resolution molecular parameter database, and selecting a window according to spectral absorption line characteristics of target gas and interference gas to invert atmosphere C LONO2; and performing inversion model parameter setting, and obtaining a vertical profile of the target gas from the high-resolution spectral data. According to the method, the vertical profile of the atmospheric stratosphere nitric acid chloride is effectively inverted from the foundation remote sensing spectral data, high-precision nitric acid chloride concentration vertical distribution information is provided, and data support is provided for monitoring the total amount of active chlorine in the stratosphere and researching the characteristics of ozone-destroying substances; the algorithm can be suitable for inversion of hyperspectral data observed by any foundation remote sensing, and the algorithm has strong adaptability.

1. The name of the product of this design: Handbag (ozone layer protection environmental protection propaganda). 2. Purpose of this design product: for handbags. 3. The design key point of this appearance design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. There are no design highlights in the top view, so the top view is omitted; the bottom view has been fully reflected in the submitted views, so the bottom view is omitted.

The invention relates to a device and a method for monitoring ozone depletion 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, and the target object trapping pipeline is used for trapping target objects in sample gas through the trapping module and removing interferents; the multi-stage analysis pipeline comprises an analysis carrier gas inlet and a temporary storage column switching module; the focusing analysis module is used for carrying out focusing and chromatographic separation on the target object and then carrying out detection; the analysis carrier gas inlet is connected with the focusing analysis module through the trapping switching module and the temporary storage column switching module in sequence, and the multi-stage analysis pipeline is used for conveying target objects analyzed in batches to the focusing analysis module.

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.

The invention provides a fluorine-containing electronic cooling liquid and a preparation method thereof. The fluorine-containing electronic cooling liquid comprises fluorine-containing dichloro olefin and fluorine-containing cycloalkane, or fluorine-containing dichloro olefin and hydrofluoroether are included. The preparation method of the fluorine-containing dichloro olefin comprises the following steps: step 1, preparing fluorine-containing alkyne R1C = CR2 through a liquid phase dehydrochlorination reaction of fluorine-containing monochloro olefin R1CCl = CHR2; and 2, carrying out an addition reaction on the fluorine-containing alkyne R1C = CR2 and chlorine to prepare fluorine-containing dichloro olefin R1CCl = CClR2. According to the fluorine-containing electronic cooling liquid disclosed by the invention, symmetric arrangement of groups is optimized, so that the fluorine-containing electronic cooling liquid is good in stability, low in dielectric constant and good in insulating property; double bonds contained in molecules of the fluorine-containing electronic cooling liquid can be quickly added with OH free radicals after passing through the atmosphere, are degraded through oxidation and cannot enter the ozone layer, the ozone depletion potential (ODP) is close to 0, and the GWP100 value is further effectively reduced by adding the second component fluorine-containing cycloalkane or fluorine-containing ether with an annular structure.

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.