147 results about "Industrial gas" patented technology

The invention relates to an industrial gas tank storage place early warning method and system. The method comprises the following steps: acquiring image time sequence data at least representing temperature field distribution of a target monitoring area, generating a temperature image sequence, determining area temperature change characteristics and tank body surface reflection characteristics in the area, and generating reflection area probability distribution of the target monitoring area to determine initial gas leakage probability data of the target monitoring area; generating baseline feature data at least representing background thermal field distribution of the target monitoring area; and performing association processing on the initial gas leakage probability data and the baseline feature data to generate fusion time sequence features and determine a gas leakage diffusion weight so as to correct the initial gas leakage probability data to obtain corrected gas leakage probability data. By adopting the method, the gas leakage probability can be accurately judged by comprehensively utilizing temperature field time sequence information, tank body surface reflection characteristics and background thermal field distribution characteristics under the condition of a complex background thermal field, so that early warning is realized.

The invention discloses industrial gas on-line monitoring equipment, and relates to the technical field of monitoring equipment.The industrial gas on-line monitoring equipment comprises a monitor installed on a rack, and a gas guide pipe used for guiding industrial gas to be monitored by the monitor is arranged outside the rack; a spacing disc is fixed in the air guide pipe, a plurality of disc channels which are uniformly distributed around the axis of the spacing disc are arranged on the spacing disc, and filter plates are mounted in the disc channels; a side box and a side plate are arranged on the two sides of the spacing disc respectively, the side box is close to the industrial gas inlet end of the gas guide pipe, a shaft pipe is rotationally arranged on the spacing disc, the side box is fixed and communicated to the shaft pipe, and the side plate is movably arranged on the shaft pipe. According to the industrial gas online monitoring equipment, by arranging the side box, the side plate and other structures, rapid cleaning of impurities can be completed without shutdown, it is guaranteed that impurity suction and gas monitoring do not affect each other, meanwhile, the two-way collaborative reverse blowing cleaning effect of reverse blowing and suction is formed, synchronous cleaning of the side box is completed, and the service life of the side box is prolonged. And the use efficiency of the industrial gas online monitoring equipment is improved.

The invention belongs to the technical field of desulfurization gas purification, and particularly relates to a desulfurizing agent and a preparation method thereof. The desulfurizing agent is an iron-zinc-calcium composite oxide material with a hierarchical porous structure, and the preparation method of the desulfurizing agent comprises the following steps: performing amination modification on xanthan gum, then mixing the modified xanthan gum with nano cellulose, and then preparing slurry with a metal salt solution containing Fe, Zn and Ca; performing two-way temperature gradient freezing casting and freeze drying to obtain a precursor; and finally, roasting and activating under programmed temperature control. According to the preparation method, nano-scale dispersion of active components is realized by virtue of strong coordination of aminated xanthan gum and metal ions, and a high-strength and through hierarchical pore framework is constructed by virtue of nanocellulose enhancement and freezing casting. The obtained desulfurizer has ultrahigh one-time sulfur capacity, high mechanical strength and excellent structural stability, is complete in form after being used, is convenient for resource recovery, and is suitable for efficient removal of hydrogen sulfide in industrial gases such as refinery gas.

The invention discloses a preparation method of a biomass-based activated carbon desulfurizer. The method comprises the following steps: 1, crushing, cleaning and drying a biomass raw material to obtain a pretreated material; 2, pre-carbonizing and carbonizing to obtain charcoal particles; 3, introducing water vapor to activate the biochar particles to prepare activated carbon particles; 4, mixing and kneading the activated carbon particles and an additive, extruding into strips, and drying to obtain an activated carbon carrier; 5, dipping the activated carbon carrier with alkali to obtain a desulfurizer; the desulfurizer is applied to removal of sulfides in industrial feed gas. According to the desulfurizer, the biomass raw material serves as a carbon source, sufficient adsorption sites and alkaline catalysis sites are provided through water vapor activation pore forming and impregnation loading of alkali components, the desulfurization performance of the biomass-based activated carbon desulfurizer is improved, and the desulfurizer is suitable for deep desulfurization of industrial gas with high CO2 content and containing organic sulfur and inorganic sulfur; the raw materials are renewable, the desulfurization performance is excellent, the application range is wide, the precision is high, and the preparation process is green and environment-friendly.

1. The name of the design product: gas proportioning device (integration one). 2. The use of the design product: for gas distribution in industrial gas addition and water treatment. 3. The design points of the design product: the overall shape of the product and the structure of A part and B part. 4. The picture or photo that best shows the design points: perspective view. 5. Other circumstances that need to be explained: A part and B part are transparent materials.

The purpose of this invention is to propose an oxygen depressurization explosion-proof electrostatic vacuum noise silencing device, belonging to the field of safe handling of flammable and explosive industrial gases. The device includes a vertical cylindrical body, a bottom air inlet, a top exhaust outlet, supporting legs, and inside the cylinder, a bottom flame arrester, a multi-stage pressure reduction and deceleration assembly, an electrostatic elimination sound-absorbing layer, and a top flame arrester. Through multi-stage U-shaped microporous baffles, progressive pressure reduction and deceleration are achieved; the metal wire sound-absorbing layer eliminates static electricity and absorbs noise; and the upper and lower double-layer flame arresters block the backfire path, completely solving the problems of electrostatic explosion, backfire, and noise pollution during oxygen depressurization. This invention is suitable for high-risk scenarios such as liquid oxygen stations, ensuring the safe production of flammable and explosive chemical facilities, avoiding personal injury and property damage, while meeting environmental protection and noise reduction requirements.

A method comprising: a) producing or treating an industrial gas by a plant (12) comprising heat-receiving units thermally independent from one another, and at least one heat source (22), b) obtaining a compressed gas (26) by compressing a working gas (28), c) dividing the compressed gas into compressed gas streams (32), d) performing heat exchanges between the compressed gas streams and the heat-receiving units, and condensing the compressed gas streams into liquid streams (36), e) expanding the liquid streams and obtaining an expanded stream (46), f) vaporizing the expanded stream by heat exchange with at least the heat source, and obtaining of a gas stream (50), g) obtaining the working gas from at least the gas stream.

The utility model discloses a connecting buffer device for an industrial gas engine, which relates to the technical field of connecting buffer equipment for engines, and comprises a mounting box body, four groups of guide columns are fixedly connected to the inner side of the mounting box body, and an upper mounting sliding plate is arranged above the inner side of the mounting box body; by means of the linkage design of the first damping rod and the second damping rod, vertical vibration of the engine is converted into composite motion of axial compression and transverse stretching or compression, three-dimensional vibration energy dispersion is achieved, a rotation linkage mechanism of the double-side rotating seat effectively avoids single-direction impact overload, and the vibration energy dispersion efficiency is improved. The transmission of vibration to an engine and an external rack is remarkably reduced, a penetrating type forced air cooling system is formed through an air inlet fan and multiple sets of heat dissipation mounting through holes, heat dissipation is directly conducted on a high-heat area at the bottom of the engine, through hole matrix layout is matched with mounting hole positions of engines of different sizes, the fixing function is achieved, meanwhile, the universality of an airflow channel is considered, and heat dissipation efficiency is improved. And the heat dissipation efficiency is improved.

The utility model relates to a kind of liquid ammonia meterable conveying devices, it includes: industrial ammonia storage tank, the industrial ammonia storage tank has industrial gas phase mouth and industrial liquid phase mouth;Vehicle-mounted liquid ammonia tank, the vehicle-mounted liquid ammonia tank has vehicle-mounted gas phase mouth and vehicle-mounted liquid phase mouth;Liquid ammonia delivery component, the liquid ammonia delivery component includes one end with the industrial liquid phase mouth is connected and the other end with the vehicle-mounted liquid phase mouth is connected liquid ammonia delivery pipe, liquid ammonia pump is installed on the liquid ammonia delivery pipe, pressure transmitter one is installed on the liquid ammonia delivery pipe and located in the liquid ammonia pump upstream, pressure transmitter three is installed on the liquid ammonia delivery pipe and located in the liquid ammonia pump downstream, check valve is installed on the liquid ammonia delivery pipe and located between the liquid ammonia pump and the pressure transmitter three and flowmeter is installed on the liquid ammonia delivery pipe and located between the check valve and the pressure transmitter three.Thus can improve filling efficiency, and liquid ammonia utilization is higher.

The invention provides a solid desulfurizer, a preparation method and application, and belongs to the technical field of desulfurizers. According to the invention, iron ions and manganese ions are taken as bimetallic centers and complexed with benzoic acid series organic ligands, alpha-cyclodextrin is added to construct a binary metal organic framework, and calcination is carried out under a protective atmosphere. The molar ratio of the double metals is (1-15): 1, the molar ratio of the total amount of the double metals to the alpha-cyclodextrin is 1: (0.1-0.5), and the molar ratio of the ligand to the iron ions is (2-4): 1. The desulfurizer realizes deep removal of hydrogen sulfide by virtue of the synergistic effect of physical adsorption, chemical adsorption and catalytic oxidation, the sulfur capacity reaches 5.3-6.9 mmol / g, the desulfurizer can be regenerated after being purged by hot inert gas at 160-200 DEG C, the retention rate of three times of regeneration is 84% or above, and the desulfurizer is suitable for desulfurization of industrial gases such as natural gas and biogas and has the advantages of high efficiency, stability and environmental protection.

The invention discloses a high-efficiency low-energy-consumption solvent for removing organic sulfur in gas as well as a preparation method and application of the high-efficiency low-energy-consumption solvent, and belongs to the technical field of gas purification. The solvent is formed by compounding a physical absorption organic solvent, a chemical absorption alcohol amine solution and a nitrogen-doped activated carbon catalyst nanofluid. The nitrogen-doped activated carbon catalyst is prepared by taking coconut shell or shell activated carbon as a raw material, mixing the coconut shell or shell activated carbon with a high-content nitrogen compound, pickling, drying, grinding and calcining by a specific procedure, and the surface of the nitrogen-doped activated carbon catalyst is rich in nitrogen-containing functional groups. When the catalyst is dispersed in an alcohol amine-organic solvent mixed system, a stable carbon nanofluid can be formed, and the heat transfer and mass transfer performance of the system can be remarkably improved. The solvent integrates the advantages of physical absorption and chemical absorption, and shows high absorption capacity and rate in the desulfurization process by virtue of the synergistic effect of the nanofluid; in the regeneration process, the heat and mass transfer efficiency is improved, so that the energy consumption is obviously reduced, and the method is particularly suitable for treating industrial gas containing organic sulfur.

The invention relates to the technical field of industrial gas purification and carbon capture, in particular to a system and a method for cooperatively capturing CO2 and H2O in flue gas. The flue gas CO2 and H2O synergistic trapping system comprises: a flue gas pretreatment module, which is used for pretreating to-be-treated flue gas; the membrane separation module is connected to the downstream side of the flue gas pretreatment module; the membrane separation module comprises a ceramic membrane separation unit, and a plurality of tubular ceramic membranes with high selective separation performance on CO2 and H2O are arranged in the ceramic membrane separation unit; the compression and purification module is connected to a permeation gas flow outlet of each tubular ceramic membrane of each ceramic membrane separation unit of the membrane separation module and is used for treating permeation gas of the membrane separation module; and the energy recovery module is used for carrying out energy recovery on the trapped gas flowing out of the membrane separation module. According to the invention, the system flow is simplified, the equipment investment is reduced, and more importantly, a high-purity CO2 product is produced.

The invention provides a one-way valve and a gas turbine, and relates to the technical field of gas turbine equipment. The one-way valve comprises a shell, a supporting rib, an outer guide ring, an inner guide ring, a valve element and a baffle ring. No support structure obstruction exists in the annular channel between the valve element and the inner guide ring, and a flow channel is smooth. The outer guide ring plays a good role in guiding airflow, air flows out towards the exhaust side along the outer guide ring, flow separation and backflow areas are effectively avoided, pressure loss is reduced, and air self-circulation efficiency is improved. The supporting ribs play a role in supporting the outer guide ring and the inner guide ring, on one hand, a smooth flow channel can reduce pressure loss, and on the other hand, dust and impurities in air can be prevented from being blocked by the supporting ribs and accumulated around the valve element. Dust particles in the air are prevented from being accumulated near the supporting ribs and the valve element, the problems of valve element clamping stagnation and abrasion caused by impurity accumulation are fundamentally prevented, and it is guaranteed that the valve can reliably operate for a long time in the severe environment of an industrial gas turbine.

1. Name of the designed product: gas proportioning device (integration two). 2. Use of the designed product: gas proportioning in industrial gas adding and water treatment. 3. Design points of the designed product: the overall shape and the structure of A part. 4. Picture or photo best showing the design points: perspective view. 5. Other circumstances or explanations: A part is made of transparent material.

The utility model relates to industrial gas separation and purification equipment technical field especially relates to a control system of preventing pressure swing adsorption bed layer fluidization, including raw material gas inlet main pipe, product gas discharge main pipe and a plurality of adsorption purification devices, and adsorption purification device contains raw material gas inlet branch pipe, adsorption tower, product gas discharge branch pipe, and the control system still includes the pressure cylinder of adsorption tower top, pressure sensor and process control regulating valve on product gas discharge branch pipe, the forward depressurization branch pipe and pressure equalizing orifice plate of intercommunication adjacent device. The utility model eliminates fluidization space through the pressure cylinder compaction adsorbent top surface, and process control regulating valve and pressure equalizing orifice plate cooperate and regulate and control pressure difference and flow velocity, solve the adsorbent fluidization pulverization in the operation of pressure swing adsorption device, pipeline vibration and the problem of high cost and high failure rate of existing control scheme, be applicable to all pressure swing adsorption device, especially to large -scale pressure swing adsorption device of low hydrogen raw material gas or macromolecular weight product gas, the effect is particularly remarkable.

The application discloses a lime kiln tail gas carbon dioxide recovery and purification system and method based on membrane separation and multistage adsorption, and belongs to the field of industrial gas separation and recovery. The system comprises a pretreatment unit, a membrane separation system, an adsorption purification system, a deep cooling purification system, and a tail gas reflux system. The system and method of the application can increase the carbon dioxide concentration from 12% to 15% to 35% to 50% through membrane separation and pre-enrichment, realize efficient hydrocarbon removal and impurity removal and deep cooling rectification by adopting three-stage pressure swing adsorption combined with temperature swing adsorption, and realize the efficient recovery of carbon dioxide by combining tail gas reflux circulation and reprocessing, so that the carbon dioxide recovery rate can be significantly improved from less than 70% to more than 90%, the product purity can reach more than 99.5%, the energy consumption can be reduced, the service life of the adsorbent can be prolonged, and the system operation stability can be improved, thereby providing an efficient and feasible solution for industrial carbon emission reduction and resource utilization.

This invention provides a method for recycling lithium-ion battery cathode materials, comprising the following steps: discharging and disassembling waste lithium-ion batteries to remove battery electrodes; stripping the battery electrodes to obtain aluminum foil and electrode material; crushing and sieving the electrode material to obtain sieved powder; pressing the sieved powder into shape using a mold; placing the pressed material into a vacuum chamber and using laser decomposition technology to cause a decomposition reaction, obtaining soluble lithium salts, metal oxides and / or elemental metals; removing the product after the reaction is complete; using water or a water leaching solution with industrial CO2 gas as the leaching agent, mixing the leaching agent, the laser decomposition product, and the surfactant evenly, leaching, and filtering to obtain a lithium-rich solution and other metal element slag phases; separating and purifying the lithium-rich solution to obtain lithium carbonate product. The lithium-ion battery cathode material recycling method provided by this invention can precisely target and extract lithium, achieving a high lithium element recovery rate and a short process flow.

The present disclosure relates to a gas separation membrane assembly, which comprises at least one separation unit, the separation unit comprising a membrane sheet, an inlet gas net and a product gas flow channel assembly, the membrane sheet having opposite inlet gas side and product gas side, the inlet gas net being attached to the inlet gas side, the product gas flow channel assembly being attached to the product gas side and forming a sealed structure with the product gas side, the product gas flow channel assembly comprising a flow guide cloth and at least one layer of flow guide net arranged in a stack. The gas separation membrane assembly of the present disclosure can significantly improve the gas separation efficiency, reduce the gas flow resistance and concentration polarization effect on the product gas side, meet the requirements of high flux membrane on the assembly, effectively exert the separation performance of the membrane sheet, and be suitable for various industrial gas separation scenarios such as carbon dioxide, methane, ethanol and oxygen.

A valve for compressed gases comprises a valve body provided with an inlet and outlet pipe and a safety group configured for discharging the operating fluid under emergency conditions. The safety group comprises a discharge pipe, a breakable sealing element, which is configured to close said discharge pipe as long as a pressure less than a predetermined threshold value acts on said sealing element and a deflector element which is configured to be inserted into a seat of the discharge pipe so as to project. The deflector element is configured to discharge the operating fluid outside said valve in a direction which substantially diverges with respect to the discharge direction. The safety group comprises a protection structure which projects in a direction away from said seat and which is arranged peripherally with respect to an upper portion of said peripheral surface which comprises sloping surfaces.

The invention discloses a method for synthesizing a hierarchical pore MFI molecular sieve membrane based on a sacrificial crystal seed layer, and belongs to the field of zeolite molecular sieve membrane synthesis. The hierarchical pore MFI molecular sieve membrane with a compact selective top layer and a macroporous transition layer with high porosity is successfully constructed on a porous carrier through a surface wet gel secondary growth technology of a sacrificial crystal seed layer. The film layer structure and the gas separation performance are optimized by regulating and controlling the composition, the aging time and the crystallization time of the synthetic gel. The prepared hierarchical pore MFI molecular sieve membrane shows high permeability and excellent selectivity in n-butane / iso-butane separation, and the preparation process is good in repeatability, high in stability and suitable for industrial gas separation application.

The invention relates to the technical field of gas treatment, and discloses multi-stage treatment equipment for industrial gas, which comprises a rotary filtering mechanism and a reverse linkage mechanism, the first bevel gear can drive the hollow rotating disc to rotate, the second bevel gear can drive the fan blades to rotate, and the third bevel gear rotates along with a rotor of the driving motor and drives the first bevel gear and the second bevel gear to rotate. According to the multi-stage treatment equipment for the industrial gas, the gas is filtered by utilizing the filter plate, and particulate matters attached to the surface of the filter screen can generate centrifugal forces in the horizontal direction and the vertical direction, so that the particulate matters blocked in filter holes can be effectively removed; therefore, the effective filtering efficiency of the equipment is ensured, and the capability of timely cleaning sundries is improved.

The invention provides a gas turbine compressor blade service life evaluation method based on high-cycle fatigue characteristics, and aims to solve the problem that fatigue tests under pure simulation and laboratory conditions cannot be effectively combined to meet the requirement of gas turbine blade type core component service life evaluation. According to the method, the strength condition and the vibration condition of the blade are determined through finite element analysis, then the stable attenuation law of the fatigue strength of the blade is obtained by actually measuring the vibration stress and the fatigue limit values of the blade in different use time periods, and the service life of the gas turbine compressor blade is comprehensively evaluated by taking the high-cycle vibration fatigue reserve as the standard. The method is not limited to a ship gas turbine compressor, is also suitable for effective evaluation of the service life of the moving blades of an industrial gas turbine and an aero-engine compressor, and can provide a fatigue reliability design direction for a new model.

The invention discloses an anti-frosting enhanced heat transfer combined air bath type industrial gas gasification device, and relates to the technical field of industrial gas treatment, the anti-frosting enhanced heat transfer combined air bath type industrial gas gasification device comprises a bearing base, vertical columns are fixed at four end corners in the bearing base, and a top sealing platform is fixed at the upper ends among the four vertical columns; a frost restraining pipeline composite module is arranged at the bottom end of the top sealing platform and located between the two supporting cross beams, and an induced draft fan is arranged at the top end of the top sealing platform. According to the anti-frosting enhanced heat transfer combined air bath type industrial gas gasification device, active thermal protection is carried out through waste heat of gasified gas, the passive frosting working condition of a traditional gasifier is fundamentally changed, the frost layer forming speed is remarkably delayed, the defrosting frequency is reduced, the device can keep an efficient heat transfer state for a long time, and the heat transfer efficiency is improved. And the gasification efficiency is effectively improved.

The present application relates to a kind of industrial gas turbine power ladder examination online determination and test method, the method is first to power ladder standard is plotted, according to power ladder trend and standard range is operated, to ensure that sufficient power ladder examination and prevent excessive power ladder examination is formulated, the change time of stable working condition is counted into low working condition section, while ensuring that variable speed changes time meets the requirements of power ladder examination, each stable working condition has cumulative running time and reminder function, while the over-temperature, overspeed limit is handled, it can also be according to power power ladder operation.The method meets the accuracy of power ladder examination standard at the same time, greatly improves operating efficiency, avoids the influence brought to unit by excessive power ladder examination, post-determination.

The invention discloses an industrial gas chilled water dewatering and drying graphite condenser application device which comprises a bearing plate, a first condenser and a second condenser, a bearing frame body is installed above the bearing plate, and two transverse reinforcing ribs are fixedly installed at the lower end and the center of the bearing frame body; the invention relates to the technical field of condensers, high-temperature coal gas firstly enters a first-stage heat exchanger to carry out cold and heat exchange with cooling circulating water, part of liquid tar and water downwards enter the bottom of an oil-water separator to be discharged, and the high-temperature coal gas enters a second-stage heat exchanger after the temperature is reduced to about 35-45 DEG C; the coal gas exchanges heat with ice water at-10 DEG C when passing through the secondary heat exchanger, after secondary heat exchange, the temperature of the coal gas is reduced to about 10-20 DEG C, the coal gas enters a gas-liquid separation system for gas-liquid separation, the water content in the coal gas is removed to a great extent, light tar is recycled, and the dry coal gas is conveyed to a power plant through a pipeline for combustion and power generation, so that the heat value is increased by more than 15%.

The invention discloses a fuel gas component correction method and system, a storage medium and electronic equipment, and relates to the technical field of gas turbine measurement and control. The method specifically comprises the steps that two fuel flows of a thermodynamic model and a physical model are calculated in parallel, and the difference value is obtained; reversely deducing fuel calorific value and component change according to the difference value signal to finish online calibration of a fuel relative component model; switching the industrial gas chromatograph to an on-demand standby mode based on the calibration result; the flow difference is converged to zero through iterative calculation, and model self-calibration is achieved; and finally, carrying out performance calculation and self-adaptive regulation and control based on a convergence result. According to the scheme, the problems of high cost and response lag caused by dependence on continuous chromatographic analysis in the prior art are solved, online real-time correction is realized, the operation cost is remarkably reduced, and the self-adaptive capacity and the operation economy of the system to fuel change are improved.

This utility model relates to the field of industrial gas treatment technology and discloses an efficient dust removal and humidification device for industrial gases, including a treatment box. A sealing cover is slidably connected to the top of the treatment box, and an air inlet pipe is fixedly connected to the top of the sealing cover. A fixed shaft is threaded inside the sealing cover. A dust removal mechanism is installed inside the treatment box, and a humidification mechanism is installed on the right side of the treatment box. A load-bearing frame is fixedly connected to the inside of the treatment box. The dust removal mechanism includes a support frame. In use, when dust removal of industrial gases is required, the filter baskets and filter bags are arranged in four groups and symmetrically distributed inside the fixed frame. This multi-group layout greatly increases the contact area between the gas and the filter material, which can more effectively intercept dust particles in the industrial gas and improve dust removal efficiency. At the same time, the activated carbon frame located at the bottom of the filter basket can be conveniently replenished with activated carbon through the top circular feeding port.

The invention relates to the field of image processing, in particular to an industrial gas leakage detection method based on infrared thermal imaging, which comprises the following steps of: acquiring video streams by using a plurality of infrared thermal imagers, and constructing a gas basic geometric voxel grid through a background difference and view cone intersection method; thirdly, the sight line penetration depth and a statistical variable coefficient are calculated, and adaptive normalized radiation feature mapping based on statistical moments is constructed so as to solve errors caused by traditional homogeneous hypothesis; then, measuring and calculating a three-dimensional form compactness factor, generating a heterogeneous space density field weight in combination with the relative depth, and fitting a real diffusion gradient; and finally, calibrating a physical mapping coefficient by using single-point sensor data, and performing integral calculation on the real-time mass flow in combination with a three-dimensional optical flow method. According to the invention, the complex density gradient in the gas can be effectively reduced, and high-precision three-dimensional visual display and quantitative flow monitoring of gas leakage are realized.