791 results about "Gas compressor" patented technology

The invention discloses a stator blade shape-following frequency modulation design method based on a bending vibration mode and application, belongs to the field of vibration design of stator blades of aero-engines and gas turbines, and is suitable for vibration frequency modulation design of non-cantilever type stator structure blades (such as fans and gas compressor stators) with inner rings and outer rings in the aero-engines or the gas turbines. According to the method, firstly, static frequency and dynamic frequency modal analysis is carried out through finite element modeling, and dangerous resonance points and corresponding vibration modes in a working rotating speed range are recognized by combining a Campbell diagram; based on a vibration mode amplitude normalization result, setting a vibration degree parameter and a scale factor, selecting a high response node and carrying out directed disturbance, and updating a structure model to improve a target vibration mode frequency; and through frequency amplification verification and iterative optimization, geometric reconstruction and frequency modulation confirmation are finally completed in combination with aerodynamic performance and processing requirements. The method can realize rapid and accurate frequency modulation of a specific bending vibration mode, avoids introduction of new resonance, and has the advantages of high efficiency, strong adaptability and the like.

The invention relates to the technical field of equipment running state monitoring, in particular to a gas compressor running state monitoring method and system.The method comprises the steps that a real-time monitoring data sequence of a gas compressor under each preset dimension in the current compression period is obtained, and the real-time monitoring data sequence of the gas compressor under each preset dimension in the current compression period is obtained for any sampling moment of the current compression period; obtaining a basic weight of each preset dimension at any sampling moment according to a preset number of groups of historical data; performing stage division on the current compression period to obtain a stage weight set of each stage, and according to the stage weight set, adjusting the basic weight of each preset dimension at any sampling moment to obtain a dynamic weight; performing weighting processing on the real-time monitoring data of each preset dimension by using the dynamic weight to obtain an equipment health index at any sampling moment; and according to the change rate of the equipment health indexes at the adjacent sampling moments in the current compression period, abnormal early warning is performed on the gas compressor, so that the operation state of the gas compressor is monitored more accurately.

The invention discloses a voiceprint monitoring method, system, medium and equipment for rotation stall of an aero-engine compressor, and the method comprises the steps: determining the layout of a microphone array through the model parameters of the compressor of the aero-engine, and carrying out the synchronous collection of sound pressure time domain signals of multiple channels of the compressor of the aero-engine through the microphone array; arranging the multi-channel sound pressure time-domain signals in sequence to construct a time-domain signal matrix; performing spectral analysis on the sound pressure time-domain signals by adopting a fast Fourier transform algorithm to obtain a spectrogram of the sound pressure time-domain signals of each channel, monitoring whether an abnormal single-tone frequency peak value lower than one time of rotation frequency appears in the spectrogram or not, obtaining an acoustic mode spectrogram of the abnormal single-tone frequency peak value by adopting a single-frequency acoustic mode decomposition method, and obtaining an acoustic mode spectrum of the abnormal single-tone frequency peak value; and whether the rotating stall characteristic of the gas compressor occurs in the acoustic mode spectrogram is monitored to judge whether the rotating stall characteristic of the gas compressor occurs or not.

The invention discloses a flow control method of a gas compressor, which relates to the technical field of flow control of gas compressors, and comprises the following steps of: deploying a sensor in the gas compressor, monitoring various parameters of gas flow in real time, and providing gas flow monitoring data for the whole system; performing preprocessing operation on the original data acquired from the sensor; dividing the gas flow data into a plurality of monitoring windows according to the time length, and for each monitoring window, extracting an index of potential gas reverse flow from the preprocessed data by adopting a feature engineering technology as a feature vector to represent a potential risk of gas flow reverse flow. The air flow parameters are monitored in real time, data preprocessing is carried out, the feature engineering technology and the deep learning model are combined, the potential risk in the air flow is accurately predicted, the rotating speed of the compressor and the opening degree of the air inlet valve are adjusted in time when the risk occurs, and therefore effective control over reverse flowing of the air flow is achieved; and long-term operation of the compressor in a safe and efficient state is ensured.

The invention relates to an oil-proof emulsification control method and system for an air compressor of an urban rail vehicle, and solves the problem of lubricating oil emulsification caused by insufficient working efficiency of the air compressor and environment humidity change by constructing a comprehensive control system comprising the compressor, an oil-proof emulsification device and a controller. The system monitors lubricating oil temperature and environment humidity in real time through a temperature sensor and a humidity sensor; the working rate of the air compressor is accurately calculated, wherein the vehicle operation time t2 takes the operation speed larger than 10 km / h as the calculation starting point; the controller comprehensively judges whether the oil-proof emulsification device is started or not based on temperature, humidity and working rate data, and the control strategy comprises the step of dynamically adjusting the working rate judgment node according to the real-time temperature and humidity. According to the method, accurate and reliable control over the oil-proof emulsification process is achieved, emulsification of the lubricating oil is effectively prevented, and energy consumption and maintenance cost can be reduced.

A foamed liquid dispensing system includes a container for receiving a liquid to be dispensed connectable to, and removable from, a gas charging unit. The gas charging unit includes a gas compressor, gas pressure sensing means, a control unit and a user interface. The user interface permits a user to input a desired final gas pressure from a minimum value to a maximum value in discrete steps. The control unit instructs the gas compressor to charge the container with gas to the desired final pressure. The gas pressure is continuously monitored and the flow of gas into the container is stopped once the desired final gas pressure has been reached. The user interface displays the gas pressure in the container as the charging cycle proceeds. Once charged with gas and removed from the gas charging unit, the container substantially retains the final desired gas pressure until the liquid is dispensed.

The utility model relates to a gas diffusion cascade device for preparing high-abundance nitrogen-15 isotopes by taking nitrogen as a medium. The gas diffusion cascade device comprises a first gas diffusion cascade, a second gas diffusion cascade, a photocatalysis / electro-catalysis device and a high-speed magnetic suspension gas compressor, the first gas diffusion cascade and the second gas diffusion cascade are ladder cascade and respectively comprise a plurality of gas diffusion separation devices; the photocatalysis / electrocatalysis device is positioned between the first gas diffusion cascade and the second gas diffusion cascade; the high-speed magnetic suspension gas compressor is positioned in front of each gas diffusion and separation device in the nitrogen flowing direction; and obtaining the high-abundance nitrogen-15 isotope prepared by taking nitrogen as a medium from the heavy fraction end of the second gas diffusion cascade. The gas diffusion cascade device is high in separation coefficient, large in flow and high in efficiency, the prepared nitrogen-15 isotope abundance is high, and the gas diffusion cascade device is suitable for industrial application.

The invention relates to a methanol internal combustion engine high-temperature fuel cell hybrid power system based on double-path waste heat gradient utilization. The invention relates to the technical field of internal combustion engine waste heat recovery and new energy power system integration. The system comprises a fuel tank, a first pump body, a heat exchanger, a methanol internal combustion engine, a turbine, a gas compressor, an air compressor, a reformer, a high-temperature proton exchange membrane fuel cell, an evaporator and a second pump body. A methanol-water vapor mixture generated by heat exchange of a mixed solution of methanol and water and a high-temperature fuel cell stack coolant in a heat exchanger is introduced into a reforming reactor and is subjected to catalytic reforming to produce hydrogen by utilizing waste heat of high-temperature tail gas of an engine, and the produced hydrogen is directly supplied to an anode of a high-temperature fuel cell. Through a double-path methanol distribution strategy, collaborative design of internal combustion engine waste heat recovery, electric pile heat management and reforming hydrogen production is realized, and the comprehensive energy efficiency of the system is improved.

A light-weight gas compressor convenient to move relates to the field of gas compressors, and is characterized in that three forward cylinders and three reverse cylinders which are arranged in a staggered manner are uniformly fixed on the outer edge surface of an annular plate; the forward air cylinder B is connected with the reverse air cylinder A, the reverse air cylinder A is connected with the forward air cylinder A, the forward air cylinder A is connected with the reverse air cylinder B, the reverse air cylinder B is connected with the forward air cylinder C, the forward air cylinder C is connected with the reverse air cylinder C, and the reverse air cylinder C is connected with an exhaust pipe; the power of the double-end piston rod hydraulic oil cylinder is provided by an oil supply hydraulic oil cylinder A and an oil supply hydraulic oil cylinder B; the double-end piston rod hydraulic oil cylinder arranged in the annular plate is used for controlling the three reverse air cylinders and the three forward air cylinders to achieve gas compression, and the purpose of gas compression which is light in weight and convenient to move is achieved.

The invention relates to a surge margin prediction method and device of a gas compressor, equipment and a storage medium. The method comprises the steps that key parameter point sets obtained through load step iteration of the gas compressor in all the operation stages are obtained, all the key parameter point sets are mapped to performance diagrams of temperature identification to obtain corresponding mapping performance diagrams, discrete points in the same temperature layer in all the mapping performance diagrams are fitted, and the corresponding mapping performance diagrams are obtained; and the thermal state performance curves of the gas compressor in all the operation stages are determined, the surge critical points of all the thermal state performance curves are obtained, the predicted surge margin of the gas compressor in all the operation stages is determined according to the surge critical points of all the thermal state performance curves and all the key parameter point sets, and load step iteration is achieved based on multi-physics field coupling of the gas compressor. By adopting the method, the surge margin of the gas compressor in different operation stages can be predicted based on the key parameter point set obtained by load step iteration realized by considering multi-physics field coupling in each operation stage of the gas compressor, so that the accuracy of a prediction result is improved.

The invention discloses a split-flow type flexible dynamic green ammonia synthesis system which comprises a synthesis gas compressor unit, a recycle gas compressor unit, a hot gas-gas heat exchanger, an ammonia synthesis tower, a water cooler, a cold gas-gas heat exchanger, at least one ammonia cooler and an ammonia separator, the method is characterized in that the feed gas is divided into two streams, one stream enters the hot gas heat exchanger to exchange heat with the reacted synthesis gas, and the other stream directly enters the ammonia synthesis tower through a first shunting pipeline to adjust the temperature of a bed layer in the ammonia synthesis tower. The condensation temperature of the synthesis gas, including the condensation temperature of the synthesis gas at the outlets of the water cooler, the cold gas heat exchanger and the ammonia cooler, is adjusted step by step according to the operation load condition of the device, so that the ammonia content in the synthesis loop is controlled step by step, the loop circulation gas amount is adjusted step by step, and the stable fluctuation of the pressure of the ammonia synthesis loop is maintained; and flexible dynamic operation of the device is realized.

The invention belongs to the technical field of turbine engine design, and particularly relates to a turbine interstage combustion chamber supersonic cruise engine and a control method thereof.The turbine interstage combustion chamber supersonic cruise engine comprises a fan adopting a FLADE fan; the gas compressor is arranged behind the fan; the main combustion chamber is arranged behind the gas compressor; the high-pressure turbine is arranged behind the main combustion chamber and is connected with the gas compressor through a high-pressure shaft; the mixing chamber is arranged behind the high-pressure turbine and is communicated with the fan through an outer duct; the interstage combustion chamber is arranged behind the mixing chamber; the low-pressure turbine is arranged behind the combustion chamber and is connected with the fan through a low-pressure shaft; the spraying pipe is arranged on the low-pressure turbine; and after the injection valve is arranged on the high-pressure turbine, the injection valve deflects to the inner runner surface of the outer duct when the injection valve is opened, and deflects to the outer runner surface of the outer duct when the injection valve is closed.

The invention discloses a five-section anti-surge control method for a cracked gas compressor. Comprising two sets of anti-surge systems in a cracking compressor cold and hot reflux control mode, wherein the anti-surge systems are composed of five-return five-hot reflux valves B connected to an outlet of a cracking gas compressor and a cracking gas feeding end and five-return five-cold reflux valves A connected to an outlet of a reflux tank of a high-pressure depropanizing tower and the cracking gas feeding end; the two compressor anti-surge control systems carry out coordinated control on backflow of the five-return five-hot-backflow valve B and backflow of the five-return five-cold-backflow valve A. Anti-surge control over the five-return five-cold-backflow valve A is added. The cold reflux control compressor anti-surge control system is provided with flow low limit control of a five-section outlet C2 hydrogenation unit and 30% opening limit of a hot anti-surge valve. The anti-surge line of the five-return five-cold-backflow A valve is consistent with that of the five-return five-hot-backflow B valve, and the anti-surge line is 1.2 times that of the five-return five-hot-backflow B valve. According to the invention, the technical problem of more stable control of the five-section anti-surge valve can be solved.

The invention relates to the technical field of screw gas compressor performance detection, in particular to screw gas compressor assembly performance detection equipment, which comprises a base, two clamping units arranged left and right are mounted at the upper end of the base, the clamping units are used for clamping a screw rotor and driving the screw rotor to rotate, and detection units are distributed above the base. The shape following unit is mounted in the middle of the upper end of the base, and the detection unit is mounted on the shape following unit; the device is used for detecting the wear resistance of the screw rotor, and the wear resistance of the screw rotor is detected in a rolling friction and sliding friction combined manner, so that the actual friction state of the screw rotor during working can be simulated, and the later use effect of the screw rotor is ensured; and meanwhile, constant friction force can be applied to the surface of the screw rotor according to the spiral tooth shape of the screw rotor, so that the accuracy of the wear resistance detection result of the screw rotor is ensured.

A gas compressor is capable of adjusting a temperature of a heat recovery liquid discharged from a waste-heat-recovery heat exchanger to a desired temperature at a low cost without providing a temperature adjusting valve in a passage of the heat recovery liquid. The gas compressor includes a heat exchange liquid temperature sensor for detecting the temperature Tw2 of a heat exchange liquid discharged from a waste-heat-recovery heat exchanger, and a passage that allows at least part of a high-temperature fluid cooled by an air-cooled cooler to flow therethrough into a compressor. A controller has a heat exchange liquid temperature adjusting function to control the rotational speed of a cooling fan such that the temperature Tw2 detected by the heat exchange liquid temperature sensor gets closer to a predetermined target heat exchange liquid temperature Tw2t.

The invention relates to a low-concentration combustible gas concentration system and an operation method thereof, and the low-concentration combustible gas concentration system comprises a flame arrester, a mixing cavity, a non-combustible gas supplementing tank, a gas compressor, a primary separator, a light component secondary separator, a heavy component secondary separator and a concentration regulating valve, the premixed gas sequentially passes through a primary separator, a light component secondary separator and a heavy component secondary separator under the action of a gas compressor to carry out concentration operation on light component combustible gas, non-combustible gas is returned to a mixing cavity, and heavy component gas is discharged into the atmosphere; the invention aims to solve the technical problems of large occupied area and volume, low operation efficiency and poor separation effect of the existing combustible gas separation equipment.

The invention discloses a standby power supply system, and relates to the technical field of transformer substation power supply, a hydrogen production module is used for producing hydrogen by using commercial power or renewable power and then storing the hydrogen in a high-pressure gas storage tank of a hydrogen storage module, and the hydrogen storage module is provided with a one-way valve for the hydrogen to pass through in one way and a gas compressor for compressing the hydrogen to realize hydrogen conveying; after hydrogen stored in the hydrogen storage module is subjected to power generation through a fuel cell through the power generation module, the hydrogen is input into a storage battery pack of an uninterruptible power supply system of the transformer substation, and in the whole process, the control module detects the state of a main power supply and controls starting and stopping of the power generation module. The hydrogen production rate of the hydrogen production module and the hydrogen storage pressure of the hydrogen storage module are controlled, only water is generated in the power generation process, harmful emission is avoided, direct current generated by the fuel cell is directly matched with a UPS storage battery direct current bus, the response speed is high, conversion loss is reduced, the energy utilization efficiency is improved, the system automation degree is high, and the operation and maintenance cost is low.

The invention belongs to the technical field of gas compressors, and discloses an electric power carbon emission accurate measurement and optimization method based on artificial intelligence, and the method comprises the steps: data collection and processing: collecting historical power generation, load, tidal current and carbon emission data, and carrying out the cleaning and standardization; training a dynamic carbon emission factor model, training a carbon emission factor prediction model of each thermal power generating unit by using historical data, and predicting by using the carbon emission factor prediction model to obtain a dynamic carbon emission factor; and training a GNN carbon flow model, and training the GNN model to estimate node carbon intensity by using the power grid data and the dynamic carbon emission factors. According to the invention, two core problems of inaccurate measurement and difficult optimization of the carbon emission of the electric power system are solved. Accurate carbon perception is realized through a dynamic carbon emission factor and a GNN carbon flow model, and an optimal scheduling strategy considering economy, safety and low carbon is searched in a complex power grid environment through reinforcement learning.

The utility model discloses a direct cooling device and a heat management system of an energy storage system, the energy storage system comprises an energy storage component and a heat transfer component, the heat transfer component is provided with a fluid channel, the heat transfer component can be connected with the direct cooling device through a first pipeline and a second pipeline, the direct cooling device comprises a heat supply module and a valve assembly, the heat supply module comprises a gas compressor, a gas-liquid separator, a first heat exchanger, a heat regenerator and a fluid storage tank, the heat regenerator is provided with a first fluid passage and a second fluid passage, and the heat management system comprises a cooling passage and a cooling backflow passage. The cooling passage, the fluid channel and the cooling backflow passage form a cooling circulation passage; the detection control module comprises a controller and a pressure sensor which is arranged in a pipeline and is in electrical connection or signal connection with the controller, the heat supply module is connected with the controller and is controlled by the controller, and the heat management system is simple in structure and high in energy efficiency.

The invention discloses a high-stability sealing process gas compressor and a shaft sealing structure thereof. The high-stability sealing process gas compressor comprises a compressor volute, a compressor sealing body, an impeller and a driving shaft. The driving shaft is arranged in the compressor sealing body, and the driving shaft is fixedly connected with the impeller; the compressor volute and the compressor sealing body are assembled in the radial direction of the driving shaft to form a vortex channel, and the impeller is assembled at an inlet of the vortex channel. A rotary sealing structure assembled in the radial direction is arranged between the compressor sealing body and the driving shaft. According to the compressor structure, the compressor volute, the compressor sealing body and the special rotary sealing structure are assembled in the radial direction, vertical horizontal assembly is not needed, and rapid assembly of the compressor structure is achieved; the compressor volute and the compressor sealing body are integrally cast respectively, and the rotary sealing structure is specially matched with the structural improvement of the radially-assembled compressor structure, so that the risk of process gas leakage is reduced.

The invention aims at providing a gas compressor surge detection method and system and a medium. The gas compressor surge detection method comprises the steps that a, dynamic pressure signals of a plurality of positions of a gas compressor along the way are collected; and b, the multiple dynamic pressure signals are compared with dynamic pressure change threshold values under the corresponding working conditions, and if at least one dynamic pressure signal is larger than the dynamic pressure change threshold value, it is judged that surge happens to the gas compressor. Through the gas compressor surge detection method, the reliability of gas compressor surge detection can be improved.

The invention provides an aircraft component fault intelligent diagnosis and maintenance control system, and relates to the technical field of aircraft component diagnosis. A stall modeling module of the system establishes an aeroelastic coupling equation for quantifying stall behaviors on the basis of collected pressure disturbance data of an air inlet flow field of an air compressor and blade row vibration response information. The elastic response deduction module discretizes the equation through a state conversion operator and then embeds the equation into a graph neural network node update function. The graph embedding coupling recognition module recognizes blade tip gap mutation behaviors induced by local stall and time sequence precursor characteristics of the blade tip gap mutation behaviors by using a node state evolution trajectory output by the graph neural network, and constructs a surge precursor evolution path. And the early warning output module carries out instability trend judgment on the surge precursor evolution path, and outputs a maintenance suggestion and an early warning identifier aiming at a blade fracture fault, so that the structure failure risk caused by the surge of the gas compressor is effectively predicted, and the accuracy and timeliness of fault diagnosis of aircraft parts are remarkably improved.

The invention discloses steel for a low-temperature high-speed rotating shaft and a heat treatment process of the steel. The steel is prepared from, by mass, 0.2%-0.3% of C, 2.5%-4.2% of Ni, 1.5%-3.2% of Cr, 0.15%-0.6% of Mn, 0.2%-0.3% of Si, 0.2%-0.4% of Mo, 0.08%-0.2% of V and the balance Fe through matching, mixing, smelting, slab continuous casting to form a cast ingot, and hot rolling; the obtained steel ingot is cooled after being quenched, then tempering cooling is carried out for more than or equal to three times, in the non-head-tail tempering cooling process, the tempering temperature of at least one time is higher than the dissolution temperature of cementite, and the other tempering temperatures are all lower than the dissolution temperature of the cementite; the heat preservation time of each tempering is 1-3 hours; the invention relates to a martensite castable which is composed of tempered martensite and cementite which are evenly distributed, the tempered martensite is in a lath shape, the width of the lath is smaller than 1 micrometer, the cementite is in a spherical and / or film shape, and the size of the cementite is smaller than 100 nm. The obtained material can keep good obdurability at extremely low temperature, and is suitable for low-temperature gas compressors and other scenes.

The invention discloses a gas-solid-sound coupled gas compressor acoustic resonance monitoring method and system, a medium and equipment, and the method comprises the steps: determining the installation number and angle of strain gauges based on a blade modal analysis result, or determining the installation number and position of blade end timing sensors according to the number of rotor and stator blades, and determining the installation position of a pressure probe; carrying out a compressor surge test, and synchronously collecting a sound field signal, a vibration signal and a pulsating pressure signal; frequency domain information of the sound field signal, the vibration signal and the pulsating pressure signal is obtained through spectral analysis; carrying out correlation analysis on the sound and vibration signals, and judging whether abnormal asynchronous peak values appear in the sound pressure and vibration signals or not; carrying out acoustic mode decomposition at the abnormal asynchronous peak frequency of the sound field signal, and judging whether the circumferential mode order is coupled with the vibration pitch diameter and the pressure mode or not; the method comprises the following steps: performing continuous broadband acoustic mode decomposition on an acoustic pressure signal to obtain a spectrogram, monitoring whether the spectrogram is matched with an acoustic resonance characteristic or not, and judging whether the compressor has an acoustic resonance fault or not.

The invention discloses an aero-engine complete machine three-dimensional simulation debugging method and device and a storage medium, and belongs to the field of aero-engine aerodynamic thermal simulation. The core of the method is to systematically solve the problem of simulation convergence through a two-stage strategy of component gradient pre-convergence and complete machine dynamic adaptive coupling. And at the component level, steady pre-convergence of the flow field is realized through progressive physical loading and stability control aiming at a gas compressor, a combustion chamber and a turbine. At the complete machine level, dynamic calculation parameter adjustment and flow field stability control based on flow field real-time stability are adopted, and it is ensured that the coupling process is rapid and stable. According to the invention, geometric grid standardization, post-processing verification, variable working condition debugging and real-time monitoring abnormity processing functions are expanded. According to the method, the convergence efficiency, the success rate and the result credibility of simulation are remarkably improved, the calculation interruption rate can be reduced by more than 75%, and the method is suitable for engineering design and optimization of aero-engines.

The invention relates to an air tightness detection device and method based on resonance frequency shift of a resonant cavity, belongs to the technical field of air tightness detection, and aims to solve the problems of high equipment cost, complex operation, low efficiency and difficulty in realizing multi-parameter quantitative detection in the traditional air tightness detection technology. High-purity helium with rated pressure is filled into a to-be-detected piece through a gas compressor, the to-be-detected piece is placed in a volume-adjustable detection container after pressure maintaining, and leaked helium is pumped by a vacuum pump to flow into a resonant cavity; resonance frequency deviation caused by helium concentration changes is monitored, temperature and humidity calibration data are combined, three air tightness parameters including the leakage rate (Pa.m / s), the leakage speed (mL / min) and the leakage pressure (Pa) are calculated in real time through a microcontroller, and the air tightness grade of a to-be-detected piece is output according to the air tightness detection standard. According to the device, the volume of the detection container is adaptively adjusted through the sliding rail, and the detection efficiency and adaptability can be remarkably improved by combining frequency mixing excitation and a rapid frequency calibration technology; according to the method, resonance frequency shift-helium concentration-airtightness parameters are converted, and high-precision, multi-parameter and integrated airtightness detection is realized. The invention has the advantages of fast response speed, strong anti-interference performance, low cost and the like, is suitable for fast automatic leak detection of industrial products such as sealing devices, pressure containers and the like, and provides a new scheme for trace gas detection and gas tightness grading.

The invention relates to the technical field of gas compressor casing treatment, and discloses an axial seam treatment casing based on a B spline curve, the treatment casing is applied to a gas compressor, a rotor blade of the gas compressor is arranged in the treatment casing, the free end edge of the rotor blade faces the side wall of an inner cavity of the treatment casing, and a blade tip gap is formed between the free end edge of the rotor blade and the side wall of the inner cavity of the treatment casing; a plurality of axial seams parallel to the axis of the treatment casing are formed in the side wall of an inner cavity of the treatment casing, and notches of the axial seams all face the circumferential side wall and the front edge side wall of the rotor blade. In a radial cross section view of the compressor rotor basin, the contour section shape of the radial cross section is controlled by using six constraint points; according to the method, the axial seam section is constructed by utilizing the geometrical characteristics of the high-pressure compressor; two acute angles are formed between a curve formed by the B splines and the wall face of the casing, so that blade tip airflow enters the groove more easily from the rear portion of the processing seam and returns to the blade tip at the front portion of the processing groove in the downstream direction, and the purposes of reducing in-seam circulation loss and enhancing upstream jet flow are achieved.

The utility model provides an air filtering device for a gas compressor, which comprises a gas compressor body, one end of the gas compressor body is communicated with an air inlet pipe, one end of the air inlet pipe is in flange connection with a tank body, a back flushing component is arranged in the tank body, and a fan is arranged on one side of the tank body. One end of the fan is communicated with a filter box through a pipeline, one side of the filter box is communicated with three air suction pipes through pipelines, and one ends of the air suction pipes are communicated with the outer side of the tank body. The air filtering device for the gas compressor solves the problems that when an existing device is actually used, even flow through hole plates are arranged on the two sides of filter element cotton, air is evenly dispersed through a plurality of small holes in the even flow through hole plates to be input and filtered, but the small through holes are prone to being blocked by dust and impurities, and the filtering effect is poor. The filter effect of the filter core cotton and the air inlet efficiency of the compressor are influenced, and the filter core cotton is inconvenient to disassemble and clean and is inconvenient to use.

The invention relates to a mixed injection ammonia-hydrogen engine system which comprises an ammonia-hydrogen engine. An air inlet assembly; the ammonia gas supply assembly comprises a liquid ammonia storage box, a liquid ammonia vaporizer communicated with the liquid ammonia storage box through a liquid ammonia supply pipe and an ammonia gas supply pipe, one end of the ammonia gas supply pipe is connected with the liquid ammonia vaporizer, and a first pressure regulating valve is mounted on the ammonia gas supply pipe; an ammonia injection assembly; a hydrogen injection assembly; the exhaust assembly comprises an exhaust pipe communicated with the ammonia hydrogen engine, a turbine installed on the exhaust pipe and matched with the gas compressor, and a tail gas after-treatment unit installed on the exhaust pipe and located on the downstream of the turbine. An innovative structure of integrated ammonia cracking hydrogen production, hydrogen / ammonia double-path precise injection and combustion phase coordinated regulation is achieved, ammonia-hydrogen mixed combustion is used, hydrogen comes from ammonia online cracking, the combustion defect of ammonia is overcome, and the storage and transportation problem of hydrogen energy is solved.

The invention discloses a heat regeneration type gas turbine, which belongs to the technical field of gas turbines and comprises a gas compressor, a combustion chamber and a heat regenerator, the gas compressor, the combustion chamber and the heat regenerator are sequentially connected along a first direction, and the heat regenerator is provided with a hot gas inlet for hot gas to enter the heat regenerator. The heat regenerator is provided with a hot gas inlet, the hot gas inlet is formed in the end face, facing the combustion chamber, of the heat regenerator and connected with a gas outlet of the combustion chamber, and during work, high-temperature gas exhausted from the gas outlet of the combustion chamber directly enters the heat regenerator to exchange heat with cold gas and then is exhausted from the heat regenerator. The combustion chamber and the heat regenerator are connected without an additional connecting pipeline, and the heat regenerator, the gas compressor and the combustion chamber are coaxially arranged, so that the axial length and the radial size of the whole regenerative gas turbine can be reduced, the weight of the whole regenerative gas turbine can be reduced, and a higher fuel consumption rate can be obtained on the premise of a smaller overall size; and meanwhile, cold air enters and exits from the same side of the heat regenerator, the cold air passing through the heat regenerator does not need to be guided back to a combustion chamber through an additional channel structure, therefore, the structure is simple and compact, the overall dimension of the whole machine can be further shortened, and the weight of the whole machine can be further reduced.