201 results about "Compression system" patented technology

The invention relates to a vehicle-mounted screw air compressor oil emulsification prevention method and system, a medium and a program product, and in the method, the running state parameters of a screw air compressor are monitored in real time, and a water vapor saturation pressure formula and a temperature and pressure coupling mathematical model are used for calculating saturation water vapor pressure and actual water vapor partial pressure respectively. When the actual water vapor partial pressure is larger than the saturated water vapor pressure force corrected by the safety coefficient, the system adjusts the oil way temperature control valve to reduce the lubricating oil flow of the oil cooler so as to increase the exhaust temperature. If the condensation risk still exists and the exhaust temperature does not reach the shutdown protection threshold value, the oil way temperature control valve continues to be adjusted; if the exhaust temperature reaches the shutdown protection threshold value, the actual water vapor partial pressure is reduced by reducing the rotating speed of the frequency converter. And after the condensation risk is eliminated, the current operation parameters are maintained. The method is used for reducing the possibility that water vapor reaches saturation in the compression system and liquid water is separated out, and the accuracy and stability of lubricating oil emulsification risk control of the air compressor under the variable load working condition are improved.

The invention discloses a compression system end area flow regulation and control method based on blade inner cooling under a low Reynolds number. Firstly, through calculation or measurement, a compression system end area three-dimensional flow field under different Reynolds numbers is obtained, and the end area loss variation degree is quantified. Then, revealing regulation and control rules of different isothermal cooling wall surface conditions on near-wall fluid physical property parameters, boundary layer growth rate and end region secondary flow migration intensity under a low Reynolds number, and establishing a correlation model of end region loss reduction and efficiency improvement and wall surface cooling intensity; and on the basis, a blade built-in convection cooling channel structure is designed, the cooling channel and blade surface flow heat characteristics are analyzed based on a conjugate heat transfer method, and inner cooling channel structure parameters are optimized until the wall surface temperature drop amplitude meets the preset requirement. And finally, checking the wall surface cooling effect, and measuring end region performance parameters during inner cooling regulation and control under a low Reynolds number to complete scheme verification. By introducing blade inner cooling, the flow characteristic of an end region can be remarkably improved on the premise that the structural complexity is not increased as much as possible, and stable and efficient operation of a compression system under the low Reynolds number is guaranteed.

The application provides a rotary impingement oblique flow centrifugal combined compressor and application thereof, and belongs to the technical field of turbine engines, and comprises an outer casing structure, an inner casing structure, a working mechanism and a diffuser mechanism, the outer casing structure and the inner casing structure are rotary bodies, the inner casing structure is located inside the outer casing structure, the inner casing structure and the outer casing structure form a working cavity, the working mechanism is installed in the working cavity and is used for pressurizing airflow. Compared with the compression mode of a conventional combined compressor, the application draws lessons from the pressurization mode of a supersonic inlet, and the Mach number of airflow relative to a rotating impeller reaches 2 or more through high-speed rotation; at this time, a series of weak oblique shock waves are constructed through the contraction of a passage, and a high-efficiency compression system is obtained through the pressurization of the shock wave system, the single-stage pressure ratio of the high-efficiency compression system is much higher than that of a conventional compressor, and the application has the advantages of compact structure, simple processing and long service life.

A heat exchanger for heating, ventilation, air conditioning and refrigeration (HVACamp; a compressor system of an HVACamp (R, R) system, the compressor system comprising one or more compressors configured to circulate a working fluid through the HVACamp; a vapor compression system of an R system, each compressor of the one or more compressors having a pre-rotating vane (PRV) and a variable geometry diffuser (VGD), the PRV and the VGD configured to operate to adjust a capacity of the compressor system. The compressor system further includes a controller having a memory and processing circuitry, where the memory includes instructions stored thereon that, when executed by the processing circuitry, cause the processing circuitry to: determine a head coefficient for each compressor of the one or more compressors, and determine a head coefficient for each compressor of the one or more compressors; determining a compressor lift for each of the one or more compressors based at least in part on the head coefficient, comparing the compressor lift for each of the one or more compressors to a low lift threshold and a high lift threshold, and operating each of the one or more compressors in a first mode or a second mode based on a comparison of the compressor lift to the low lift threshold and the high lift threshold.

A method for controlling a vapor compression system (1) is disclosed. The vapor compression system (1) includes a compressor unit (2), a heat exchanger (5), a receiver (7), an expansion device (8), and an evaporator (9) arranged in a refrigerant path. The compressor unit includes at least one main compressor (3) and at least one receiver compressor (4). The vapor compression system (1) further includes a bypass valve (12) that fluidly interconnects the gas outlet (10) of the receiver (7) with the main compressor / multiple main compressors (3). A first pressure setpoint and a second pressure setpoint for the current pressure in the receiver (7) are defined, the second pressure setpoint being higher than the first pressure setpoint. When the load demand of the vapor compression system (1) exceeds the maximum capacity of the receiver compressor / multiple receiver compressors (4), the opening of the bypass valve (12) is controlled to adjust the current pressure in the receiver (7) according to the first pressure setpoint, and to reach the first pressure setpoint. When the receiver compressor / multiple receiver compressors (4) is operating and the load demand of the vapor compression system (1) is lower than the maximum capacity of the receiver compressor / multiple receiver compressors (4), the opening of the bypass valve (12) is controlled to adjust the current pressure in the receiver (7) according to the second pressure setpoint, and to reach the second pressure setpoint.

This utility model relates to the field of straw processing technology, and in particular to a straw compression system. It includes a placement platform, a fixed cylinder fixed to the top of the placement platform, a feeding plate fixed to one end of the outer side of the fixed cylinder, and a first fixed plate fixed to the bottom end of the outer side of the fixed cylinder away from the feeding plate. Both the feeding plate and the first fixed plate are connected to the fixed cylinder. A crushing structure is provided on the inner side of the feeding plate, and heat insulation components are provided on the inner sides of both the feeding plate and the first fixed plate. A compression component is provided at the bottom of the first fixed plate. The straw compression system provided by this utility model, through the design of the crushing component, can further refine the straw processing so that the straw can be compressed precisely. The design of the adjusting mechanism can adjust the dryness and moisture of the straw to improve the quality of the straw blocks. The design of the heat insulation component can better insulate the inner side of the fixed cylinder without affecting the straw's entry and exit, facilitating the drying of the heating element.

The compression system (100) has a compressor (150) with an inlet duct (110) and an outlet duct (120) and an anti-surge recirculation loop (140) which may recirculate fluid from the outlet duct (120) to the inlet duct (110) and regulate the flow along the anti-surge recirculation loop (140) through a throttling valve (145). The compression system (100) is further provided with another throttling valve (155) directly located at the compressor outlet flange (112), preferably at a distance from the compressor outlet flange (112) which is less than three times the inner diameter of the outlet duct (120), and a control unit (160) which controls and regulates the opening and closing of the throttling valves (145, 155). The combined control of the opening / closing of the two throttling valves (145, 155) allows to find a stable operating point of the compressor (150) which is on the left of the expecting surge limit line of the machine, extending thus the stable operation conditions of the compressor (150) and protecting the compressor (150) from the risk of surge.

The invention relates to overheat controlled thermal storage. A vapor compression system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a closed fluid circuit having a working fluid circulating therethrough. The thermal storage device includes a storage material, and the thermal storage device is thermally coupled to the closed fluid circuit downstream of the expansion device with respect to the flow of the working fluid. The vapor compression system is controllable such that the heat storage device is operable to both store and release heat when the working fluid circulates through the closed fluid circuit in a given direction.

Embodiments of the present disclosure are directed toward purge units of vapor compression systems, and methods of control thereof, that improve efficiency by selectively activating and deactivating the purge unit in response to one or more conditions to, for example, enable refrigerant-to-air ratios within the purge unit within certain industry standards while still minimizing the durations of the purge cycles. For example, in certain embodiments, these conditions may include conditions within the chiller condenser, time since last purge activation, time since last venting of non-condensables, and combinations thereof. By reducing an amount of time that the purge unit would be active without removing a substantial amount non-condensables from the vapor compression system, present embodiments reduce the power consumption of the purge unit, as well as the vapor compression system as a whole, while still being responsive to prevent or mitigate a loss of efficiency due to a substantial accumulation of non-condensables in the condenser of the vapor compression system.

The invention relates to the technical field of energy power, and particularly discloses a power generation device for generating water vapor energy through an internal combustion engine set. The device comprises a compression starting system, a heat energy exchange system, a steam power system, a residual pressure and circulation system and an intelligent management system. A compression system is started to compress air to generate high-temperature and high-pressure gas; the heat energy exchange system uses the gas to heat water into high-pressure steam; the steam power system is driven by steam to generate electricity; the residual pressure and circulating system recycles dead steam residual pressure to drive air inlet pressurization, heat preservation is conducted through waste heat, and steam is condensed into water to be recycled; and the intelligent management system performs cooperative control. Water vapor autonomous power generation is achieved through physical compression and countercurrent flow heat exchange, energy gradient utilization and working medium closed-loop circulation are achieved, and the device has the advantages of being efficient, clean and capable of running continuously.

The invention provides a high-pressure gas membrane rupture pressure measuring device and a measuring method thereof, and belongs to the technical field of pressure measurement. The measuring device comprises a pressure generation system, a gas compression system, a gas injection system, a pressure measuring system and a diaphragm clamping system. The piston divides the cavity into a hydraulic cavity and a gas compression cavity, and the piston is hydraulically driven to compress the pre-filled gas, so that the diaphragm is broken. The pressure measurement system records pressure-time data in real time, and a sliding window average algorithm is adopted to extract a membrane rupture pressure peak value. According to the technical scheme, inert gas is used, initiating explosive devices are not used, membrane rupture energy is only gas expansion, the protection box can absorb fragments, and explosion-proof transformation is not needed in a laboratory. And the smoothed unique membrane rupture pressure value is output through a sliding window averaging algorithm, and manual reading errors are eliminated. According to the technical scheme, the device is compact in structure, safe to operate, rapid in testing and suitable for accurately measuring the diaphragm rupture pressure of the gas gun diaphragm in a conventional laboratory.

Disclosed are a device for producing liquid from flue gas with low energy consumption and a method for using the same. The device includes a CO2 and N2 low-temperature medium-pressure adsorption system, an energy utilization system, a low-temperature filtration gas low-temperature compression system, a CO2 low-temperature purification system, and a nitrogen liquid device system; the systems are interconnected through pipelines and valves; the CO2 and N2 low-temperature medium-pressure adsorption system includes a flue gas cooler, a first gas-liquid separator, a compression system, a drying system, a gas expander system, and a low-temperature medium-pressure adsorption device; the energy utilization system includes an electric heater, a CO2 compressor, a heat utilizer, and a second cooler; the low-temperature filtration gas low-temperature compression system includes a low-temperature compressor and a CO2 low-temperature purification system.

The invention discloses a compression system for treating a radioactive waste filter element, which is characterized by comprising a lifting machine, a filter element receiving device, a crusher, a conveyor, a charging basket transfer box, a local discharge filter, a high-efficiency filter, an induced draft fan and a control cabinet, and can completely realize receiving, crushing, conveying and compression processes of the radioactive filter element. Due to the specific crushing-compressing step-by-step process, the device can be used for treating filter elements of various specifications, and the compatibility is relatively good. According to the device, through a technical route of compression in the barrel after crushing and by utilizing the characteristic of small volume rebound after compression of a metal frame, rebound after compression of a filter material is inhibited, and a better compression volume reduction effect is realized.

Embodiments disclosed herein provide a compression system including a compression plate, a linkage assembly, and a drive assembly. The squeeze plate is configured to engage with the fluid bag. The linkage assembly includes a plurality of brackets, each bracket coupled to a plurality of linkage sets, where actuation of the linkage assembly translates the squeeze plate laterally. The drive assembly includes: a lead screw disposed through each of the plurality of brackets; an actuator configured to rotate the lead screw to actuate the drive assembly; and a nut assembly coupled to the lead screw and at least one of the plurality of brackets, where the nut assembly is configured to provide a biasing force to maintain a target pressure range on the fluid bag upon failure of the actuator.

This utility model discloses a gas compression system, including an integrated housing. The integrated housing houses an inlet pipe, an outlet pipe, a compressor module, a booster pump module, a heat exchange system, and a gas buffer system. The heat exchange system includes an inlet heat exchanger and an outlet heat exchanger. The gas buffer system includes an inlet buffer and an outlet buffer. The gas filtration system includes an inlet filter and an outlet filter. The inlet pipe, compressor module, inlet filter, inlet heat exchanger, inlet buffer, booster pump module, outlet heat exchanger, outlet buffer, outlet detection module, outlet filter, and outlet pipe are connected along the gas flow direction via a gas delivery pipeline. All components in the system work closely together, and the gas sequentially undergoes compression, filtration, heat exchange, buffering, and detection, ensuring precise processing of the gas at each stage and greatly improving the overall efficiency of gas compression.

A vapor compression system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a closed fluid loop having a working fluid circulating therethrough. A thermal storage device includes a storage material and the thermal storage device is thermally coupled to the closed fluid loop downstream from the expansion device relative to a flow of the working fluid. The vapor compression system is controllable such that the thermal storage device is operable to both store heat and release heat as the working fluid circulates through the closed fluid loop in a given direction.

A system and a method for flow assurance for a flare gas recovery unit are provided. An exemplary flow assurance system includes a knockout drum having a flare header coupled to an inlet, a high-efficiency separator coupled to an outlet of the knockout drum, a magnetic separator coupled to the outlet of the high-efficiency separator, and a multistage compression system coupled to the outlet of the magnetic separator.

The invention relates to the production of synthesis gas, which preferably consists essentially of N2 and H2 and is suitable for the production of NH3 in the Haber-Bosch process. The amount of N2 required for the synthesis gas is preferably provided as the first gas by air separation, wherein the first gas is typically already compressed to a pressure p1 due to the production process. The amount of H2 required for the synthesis gas is preferably provided as the second gas by water electrolysis, wherein the second gas is typically saturated with H2O due to the production process and is present at only a low pressure p2. According to the invention, the second gas is first compressed to a pressure p3, which is compatible with the pressure p1 of the first gas, using a first compression system (so-called "H2 booster compressor"), and then combined with the first gas, thereby producing a synthesis gas with a resulting pressure p4.The synthesis gas produced in this way is then compressed to a pressure p5 using a second compression system (so-called "syngas compressor").

A stable discharge pressure of compressed hydrogen gas generated from the electrolysis of water is achieved and maintained at the outlet of a "hybrid" multistage compression system comprising at least a first section comprising at least one centrifugal 5 compressor powered at least in part by electricity generated from at least one renewable energy source and a further section downstream of the first section, wherein the further section comprises at least one reciprocating compressor. 10 15 20 25 20 24 21 96 83 13 S ep 2 02 4 A B S T R A C T 2 0 2 4 2 1 9 6 8 3 1 3 S e p 2 0 2 4 5 1 0 1 5 2 0

A process for utilizing hydrogen gas output from at least one trailer may include forming hydrogen gas from liquid hydrogen stored in at least one trailer, and supplying the hydrogen gas from the trailer to a pipeline, a turbine, a liquefaction unit for subsequent liquefaction of the hydrogen gas, a fuel cell, and / or a compression system for compressing the hydrogen gas and subsequently liquefying the compressed hydrogen gas output from the compression system via a liquefaction unit connected to the compression system. An apparatus for utilizing hydrogen gas output from at least one trailer may be configured to perform embodiments of the process.

This invention provides a refrigeration system for fishing vessels that simplifies the configuration and reduces installation space, even when using refrigerants such as ammonia. [Solution] The system comprises multiple oil-cooled single-stage screw compressors 4-6, a first fish hold 2 cooled by the multiple oil-cooled single-stage screw compressors 4-6, and at least one second fish hold 3. The first fish hold 2 and the second fish hold 3 each have different cooling temperature ranges. The first fish hold 2 is cooled by operating each of the multiple oil-cooled single-stage screw compressors 4-6 in parallel in a single-stage compression system, while the second fish hold 3 is cooled by operating the multiple oil-cooled single-stage screw compressors 4-6 in series, combining them as the lower and upper stages of a two-stage compression system.

A computer-implemented method for determining a mass flow rate (m) is provided. Verd ) of a gas flowing through a compression system (1) of a fuel cell (2) of a motor vehicle (100). The method comprises providing (S1) a drive power (P EM,Ab ) of an electric machine (12) of the compaction system (1); a determination (S2) of a compaction power (P Verd ), with which the compression system (1) compresses the gas, based on the output power (P EM,Ab ) using a first calculation model (200); and a determination (S3) of the mass flow rate (m Verd ) based on the compaction power (P Verd ) using a second calculation model (300).

Examples of a plasma compression system are disclosed. The system includes a metallic vessel configured to receive and contain a plasma. The system further includes a metallic liquid liner in the vessel and at least partially bounding a plasma compression region having a longitudinal axis, and means for moving the liquid liner inwardly towards the longitudinal axis to compress the plasma in the plasma compression region. The system further includes a plurality of electrically conductive coils outside the plasma compression region and configured to generate a poloidal magnetic field in the liquid liner and the plasma compression region. At least some of the poloidal magnetic field within the plasma compression region extends along the longitudinal axis, and at least some of the poloidal magnetic field in the liquid liner moves inwardly towards the longitudinal axis with the liquid liner as the liquid liner moves towards the longitudinal axis.

This invention discloses a Hopkinson bar tension / compression system based on electromagnetic coil acceleration. The system includes an electromagnetic coil winding, an armature, and a Hopkinson bar. The armature is sleeved outside the incident rod of the Hopkinson bar. The electromagnetic coil winding is disposed outside the armature. When the electromagnetic coil winding is energized, it drives the armature to impact the end of the incident rod furthest from the test sample to perform a Hopkinson bar tension test, or drives the armature to impact the end of the incident rod closest to the test sample to perform a Hopkinson bar compression test. This invention uses an electromagnetic coil winding to drive the armature to accelerate and impact the incident rod, thereby loading a stress wave. Compared to the method of compressed gas, the impact speed at the armature outlet is faster, and the speed of the incident rod can be precisely controlled simply by controlling the magnitude of the current within the electromagnetic coil winding.

The utility model discloses a kind of compression systems for paper recycling, including box, the lower side of the front end of box is hinged with box door, the upper side of the front end of box is provided with feed inlet, further including compression mechanism;Compression mechanism: it includes mounting plate, fixed link, pressing plate and drive assembly, the inner wall of the pressing plate of box is slidably connected, the left and right sides of pressing plate upper end are respectively provided with fixed link, the upper end of two fixed links is fixedly connected with the lower end of mounting plate, drive assembly is set in the inside of box, pressing plate is driven by drive assembly, the right end of the box is provided with single-chip microcomputer, the input end of single-chip microcomputer is electrically connected with external power supply, the compression mechanism further includes fixed plate and guide slide column, this compression system for paper recycling reduces the setting quantity of servo motor, solves the problem of damage due to uneven stress of pressing plate, while simple structure also improves the service life of pressing plate.

An electronic device cooling system (42) is disclosed herein, the electronic device cooling system having an hermetically sealed electronic device housing (40). The system (42) includes a heat exchanger (116) that exchanges heat between a first cooling fluid (108) within the electronic device housing (40) and a second cooling fluid (118) of a vapor compression system (14). A fan (124) circulates the first cooling fluid (108) within the electronic device housing (40). The electronic device cooling system (42) may further include a baffle system (126) located within the electronic device housing (40) that guides the first cooling fluid (108) through one or more electronic components (114) arranged within the electronic device housing (40) to cool the one or more electronic components (114).

The invention provides a real-time detection device for the state of an adsorber of a helium compressor. The real-time detection device comprises a sensor group and a controller, the sensor group is used for acquiring operation parameters of a compressor and an adsorber in the helium compression system on line; a multi-level database is stored in the controller, and the controller is used for obtaining data collected by the sensor set and the rotating speed of the compressor in real time and conducting data processing and analysis to calculate the current remaining life of the adsorber. The invention provides an adsorber service life evaluation method. The method comprises the steps that a sensor group collects operation parameters of a compressor and an adsorber in real time; and the controller is connected with the sensor group and a frequency converter in the helium compression system, acquires the rotating speed of the compressor according to the operation data of the frequency converter, and is configured to execute corresponding arrangement to complete the calculation of the residual life of the adsorber. The operation and maintenance cost of a user is greatly reduced, and unnecessary replacement of the adsorber is reduced.

The present utility model relates to a cycle gas refrigerator and an apparatus for liquefying a feed fluid at low temperature. The cycle gas refrigerator comprises a compression system, a cooling system and an expansion system, the expansion system comprising at least one expansion turbine coupled to a compressor, the expansion turbine and the compressor each being coupled to one end of a common shaft, the expansion turbine, the compressor and the shaft being housed in a housing, the housing accommodating a first chamber for the compressor, an intermediate second chamber for the shaft and a third chamber for the turbine, the refrigerator comprising a set of pressurized fluid circuits in communication with at least two cavities located in the second chamber for supplying a pressurized gas flow to attenuate or counteract the axial forces acting on the shaft, the shaft comprising at least one disc-shaped flange located between the turbine and the compressor, the flange extending transversely to its axis of rotation, the flange being associated with at least one labyrinth seal for longitudinally separating two cavities intended to be subjected to different pressures on either side of the flange.

A hot line clamp for use in 15, 25 and 36 kV electrical power distribution networks is disclosed. The clamp includes an eyebolt receiver body configured to receive a cable or stirrup and a branch connection. In one embodiment, torque applied to a nut causes radial compression of a conductor against the body, distributing force uniformly. In another embodiment, torque applied to a screw produces axial compression, and the screw includes a fracture region that breaks at a predetermined torque threshold, indicating proper tightening and preventing over-torque. Both embodiments include a compression system that maintains electrical and mechanical integrity under thermal cycling.

The invention relates to a solid hydrogen storage system capable of compressing waste heat through a compressed air energy storage system and an operation method of the solid hydrogen storage system. The solid hydrogen storage system comprises a solid hydrogen storage device and a compressed air energy storage device. The compressed air energy storage device comprises a compression system, a first heat exchange system, an air storage device, a second heat exchange system and a power generation system which are sequentially connected. The compressed air energy storage system further comprises a heat storage system connected with the first heat exchange system and the second heat exchange system. The heat storage system comprises a hot heat conduction oil tank, a cold heat conduction oil tank, a cold water tank and a hot water tank; the solid hydrogen storage device comprises a hydrogen charging pipeline system, a hydrogen discharging pipeline system and a hydrogen storage device; an inlet and an outlet of the hydrogen storage device are respectively connected with the hot heat conduction oil tank and the cold heat conduction oil tank; and the hydrogen storage device is provided with a solid hydrogen storage material. According to the system, the heat storage system of the compressed air energy storage system can be fully utilized, and reaction heat in the hydrogen charging process is recycled for the hydrogen desorption process.