Energy Efficient Compressor Technologies for HVAC

High-efficiency air compression energy-saving device and system that enables real-time monitoring and predictive maintenance of air compressors. The system comprises integrated temperature, pressure, and flow sensors that provide continuous monitoring of compressor performance. This data is transmitted to a cloud-based platform for real-time analysis and alerts, enabling proactive maintenance and predictive maintenance. The system also includes a remote monitoring module that enables remote access to the compressor's operating parameters and enables remote diagnosis and repair.

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Operating a refrigeration system with a linear compressor that optimizes compressor performance through precise control of the compressor's operating frequency. The control system adjusts the compressor's operating frequency to achieve the lowest possible energy consumption while maintaining the required resonance frequency. This approach enables the system to operate within the optimal frequency range for the compressor, where the energy consumption is minimized.

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Balancing switching efficiency in energy-saving refrigeration compressors to mitigate pressure fluctuations and energy losses during mode transitions. The approach involves optimizing power compensation strategies for capacitors, calculating expansion and contraction ratios based on compression data, and determining pressure losses during reversible cycle transitions. This enables precise control of compressor performance during mode switching, ensuring stable energy efficiency while maintaining the energy-saving benefits of the compressor.

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Multi-mode compressor systems that enable energy-efficient operation by dynamically switching between load/unload and variable speed drive (VSD) modes. The system monitors actual compressor performance and estimates energy usage under different operating conditions, then compares these estimates to determine optimal operating modes. It can switch between load/unload and VSD modes based on compressor performance, enabling optimized energy consumption while maintaining system reliability.

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Compressor system with dynamic pressure control that adjusts tank pressure based on operational demand. The system comprises a power source, a compressor, an electronic inlet valve, and a control device. The control device determines the duration of time during which the electronic inlet valve is below a predetermined threshold position. If this duration exceeds a predetermined threshold, the control device reduces the tank pressure from the operational setpoint to the reduced setpoint. This adaptive pressure control enables optimal system operation by dynamically adjusting the tank pressure based on user demand.

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Energy-efficient constant temperature and humidity air conditioning system that reduces energy consumption through advanced compressor design. The system employs a variable frequency compressor with integrated oil separator, four-way valve, and gas-liquid separator, along with a condensation heat recovery heat exchanger and first heat exchanger. The system's design features a pressure balance circuit and oil return system to optimize compressor performance.

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Cryogenic refrigeration system that improves cooling power and efficiency while avoiding compressor overload during cooling. The system uses a variable speed compressor and control circuit to manage compressor speed during cooling to maintain power below a threshold. This prevents thermal shutdown due to reduced refrigerant. The system also uses techniques like increasing fill pressure or adding buffer volume to increase refrigerant without overloading the compressor. By controlling compressor speed and refrigerant quantity, the system optimizes cooling power and prevents overload during cooling.

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Energy-efficient control system for air compressors in refrigeration systems that optimizes compressor operation based on actual indoor temperature and refrigeration requirements. The system measures temperature differences between indoor and refrigerated conditions, then calculates the corresponding compressor operating proportion from a predefined table. It then controls the compressor frequency to match this proportion, ensuring optimal compressor performance while minimizing energy waste.

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A compressor control system that optimizes compressor operation through predictive load management. The system employs a variable inverter and suction throttle valve configuration, where the control device continuously monitors compressor load factor and sets the intake throttle valve to an open state when load factor falls below a predetermined threshold. The system then dynamically adjusts motor speed through variable speed control to maintain optimal pressure conditions. The intake throttle valve is closed when pressure reaches a predetermined upper limit, and opens when pressure drops to a lower limit. This approach enables precise load management while maintaining compressor performance.

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A refrigeration system that optimizes compressor performance by eliminating the gap between the spool valve and rotor in double-stage screw compressors. The system achieves improved efficiency through a novel configuration where the spool valve is connected to the rotor through a dedicated lubricating port, rather than the conventional conventional connection. This design modification enables the compressor to maintain optimal performance while minimizing leakage through the rotor gap. The system is particularly effective for low-temperature applications where conventional screw compressors typically exhibit higher leakage due to the large pressure difference between suction and discharge.

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A novel constant temperature and humidity air conditioning system that minimizes energy consumption by optimizing both cooling and dehumidification operations. The system employs a unique configuration of solenoid valves, filter, and thermal expansion valve, which enables the unit to maintain a constant setpoint temperature while simultaneously achieving the desired humidity level. This integrated approach eliminates the need for separate heating and cooling cycles, thereby reducing overall system energy consumption.

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A variable frequency permanent magnet motor high-efficiency energy-saving compressor that enables continuous operation without motor cycling. The motor features a mounting bracket with a compressor and pressure storage tank, a permanent magnet motor connected to the side of the compressor, a heat sink on the compressor, an output pipe connecting to the compressor's output end, a pressure regulating valve and gauge fixedly connected to the output pipe, and a pressure relief valve and gauge fixedly connected to the pressure storage tank. The compressor communicates with the refrigeration device through the output pipe and return pipe, enabling continuous operation without motor cycling while maintaining high efficiency and energy savings.

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A magnetic levitation centrifugal compressor system that eliminates oil contamination by integrating a magnetic levitation motor with a conventional compressor design. The system features a magnetic levitation motor with integrated cooling systems, a unique up-and-down cooling fan configuration, and a rectangular or cube-shaped intercooler and aftercooler. This configuration enables the compressor to maintain high efficiency while preventing oil contamination through the magnetic levitation motor's cooling system.

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A magnetic levitation energy-saving air conditioner that combines a magnetic levitation centrifugal compressor with a frequency conversion system in a central air conditioning system. The system employs a magnetic levitation compressor that eliminates mechanical friction, while a frequency conversion system in the condenser and evaporator stages further optimizes energy efficiency. The system integrates a magnetic levitation compressor with a frequency conversion water supply pump and throttling device, enabling both compressor and condenser operation through a single refrigerant circulation loop.

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Multi-stage compressor and air conditioning system that achieves improved energy efficiency through advanced compression mechanism design. The system employs an orbiting scroll and fixed scroll configuration, with the fixed scroll maintaining compression while the orbiting scroll is electrically controlled to switch between compression and expansion modes. The system's capacity control mechanism enables precise compression control between stages, allowing for optimized energy performance under varying operating conditions.

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A rotary compressor system that optimizes motor performance through a novel rotor weight-to-stator weight ratio. The system achieves significant efficiency gains by setting a rotor weight-to-stator weight ratio between 0.25 and 0.37, which enables optimal motor design while maintaining low-speed operation efficiency. This ratio is achieved through a specific design of the motor rotor and stator components, where the rotor weight is optimized to balance the motor's mechanical and electrical characteristics. The system enables improved compressor efficiency and APF compared to conventional designs, particularly in low-speed operation.

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Air-conditioning system that maintains constant indoor temperature through a novel control mechanism. The system integrates a local thermostat with an inverter-driven compressor, where the thermostat continuously monitors the indoor temperature. When the thermostat signals a target temperature, it adjusts the compressor's operation to maintain a specific temperature difference from the target. This approach prevents the compressor from constantly turning on and off, thereby reducing energy consumption and maintaining stable indoor temperatures.

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An intelligent energy-saving control system for air compressors that optimizes motor operation by dynamically adjusting power input frequency. The system measures compressor pressure and calculates the required operating frequency based on pressure values. It then generates a frequency signal that is converted to the operating frequency of the compressor motor. The system maintains this frequency relationship through a feedback loop, allowing the compressor to maintain optimal operation while minimizing power consumption.

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A singles clew compressor that optimizes low-speed operation by dynamically adjusting compression timing and discharge flow rate. The compressor features a unique valve configuration with two adjustable timing valves that can be precisely controlled to optimize refrigerant flow rate and pressure drop. The valves are positioned in a manner that allows the compressor to operate at minimum speed while maintaining optimal pressure drop characteristics. This enables efficient operation at low refrigerant flow rates, where conventional compressors would typically experience significant pressure drop. The compressor's unique valve design enables precise control over discharge flow rate and timing, allowing it to operate effectively at low refrigerant flow rates.

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A control system for air conditioning systems that optimizes compressor and condenser operation to minimize energy consumption. The system employs a joint control module that dynamically adjusts both the compressor and condenser to achieve optimal performance while maintaining system efficiency. This joint control enables the compressor and condenser to operate in tandem, maximizing their combined efficiency while maintaining the system's overall performance characteristics.

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Energy-efficient compression refrigeration method for chemical processing applications that improves stability and reduces energy consumption. The method employs propylene or ammonia as the refrigerant instead of traditional gaseous refrigerants, and utilizes a proprietary process that replaces the conventional anti-surge circuit with a more reliable anti-surge system. The system utilizes a combination of advanced compressor designs, optimized pressure management, and innovative condenser configurations to maintain consistent refrigerant flow and pressure, thereby enhancing overall system performance.

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Air conditioning system control that optimizes compressor operation for improved efficiency while maintaining constant indoor pressure. The control system maintains constant indoor pressure regardless of indoor load, then adjusts compressor speed to achieve optimal compressor operation. It achieves this by controlling compressor speed to maintain target pressure while maintaining constant indoor pressure. The system achieves improved compressor efficiency through optimized compressor operation, enabling energy savings while maintaining system performance.

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Air-conditioning system that optimizes energy consumption by dynamically switching between normal and power-saving modes. The system monitors occupancy patterns and indoor temperature changes, then adjusts compressor operation to minimize energy consumption during periods of low occupancy. The system maintains a consistent compressor speed during power-saving mode while transitioning to normal mode when the target temperature is reached. This approach enables efficient energy use during periods of low occupancy, particularly in homes with variable occupancy patterns.

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A compressor control system that optimizes energy efficiency through real-time monitoring of compressor operation. The system analyzes compressor operating data, including power consumption and load factor, to identify patterns that indicate energy inefficiencies. It then implements a multi-speed control strategy that automatically switches between on/off modes based on these patterns, with the compressor automatically transitioning to a lower-power state during periods of low load demand. The system provides a user interface for selecting specific control zones and schedules, enabling administrators to optimize energy savings based on their facility's specific operating conditions.

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A multi-stage compressor for air conditioning systems that enables both compression and displacement control through advanced compression mechanisms. The system comprises a lower compression stage, a higher compression stage, and control mechanisms that manage compression and displacement across multiple stages. This enables the system to transition between compression and displacement modes while maintaining optimal compression ratios and system performance.

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Semi-enclosed refrigeration compressor with enhanced efficiency and energy savings through optimized motor selection. The compressor incorporates permanent magnet synchronous motor (PMSM) and frequency inverter controller to achieve high power factor operation, enabling significant reduction in motor current and subsequent energy consumption compared to conventional induction motors.

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Air compressor energy-saving and voltage stabilization control system for industrial applications. The system comprises a pressure detection device connected to the compressor's exhaust port, a controller receiving the pressure detection signal, and a frequency converter driving the compressor's main motor. The controller monitors the compressor's discharge pressure and pressure detection signal, and adjusts the frequency converter output frequency to maintain constant exhaust pressure. This approach eliminates compressor overpressure issues while maintaining optimal motor operation.

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An air compressor that optimizes compressed air production through variable frequency operation. The compressor employs a frequency converter to control the compressor's operation, enabling precise pressure regulation and maintaining stable air supply pressure throughout the production cycle. This approach reduces energy consumption by minimizing pressure fluctuations and enabling more efficient compression processes.

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A screw compressor with improved efficiency and compact design. The compressor comprises a machine body shell with two end covers, an electric motor positioned at the ends, and a screw rod extending through the motor. The screw rod is connected to a permanent magnetic synchronous frequency converter (PMFC) that enables variable speed operation. The PMFC is integrated into the motor stator, with the screw rod coaxially extending from the rotor. The machine body shell is fixedly attached to the motor, allowing the screw rod to rotate at variable speeds while maintaining precise control over the compressor's operation.

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Frequency conversion control device for industrial applications that achieves significant energy savings through advanced pressure monitoring and control. The device employs a pressure sensor to convert the compressor's pressure signal into a digital format, which is then processed and fed back to the frequency converter. The converter's control signal is generated based on this digital feedback, enabling precise control of compressor speed. The system's pressure monitoring capability allows for dynamic parameter adjustment, enabling optimal operation across different machine configurations.

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Air compressor control method and device that optimizes compressor operation by dynamically regulating pressure levels based on compressor performance data. The method monitors compressor performance metrics, such as pressure drops during load cycles, and adjusts pressure targets for the first and second load operations. When the first load reaches its target pressure, the compressor is automatically switched to unload mode, and the pressure is maintained at the second target level. This approach maximizes compressor efficiency by preventing unnecessary compressor shutdowns during load cycles.

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A gas compressor with a novel constant temperature system that enables energy-efficient compression by regulating the refrigerant temperature within the compressor cylinder. The system comprises an external heat exchanger that connects to the compressor's evaporator inlet, allowing the refrigerant to absorb heat from the compressor's exhaust. This temperature-controlled refrigerant absorbs heat from the compressor exhaust, thereby reducing the compressor's operating temperature. The system maintains the refrigerant temperature at or below the compressor exhaust temperature, enabling the compressor to operate at higher compression ratios while minimizing energy consumption.

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A screw compressor with variable compression ratio control that optimizes both energy efficiency and noise reduction. The compressor features an adjustable compression ratio that varies based on the compressor's operating frequency and pressure ratio. The control map dynamically adjusts the compression ratio to balance energy efficiency and noise reduction performance, with the ratio decreasing as frequency increases and pressure ratio increases. This allows the compressor to achieve optimal balance between compression efficiency and noise reduction performance, enabling both energy savings and reduced noise levels.

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Air compressor with improved energy efficiency through frequency conversion control of motor speed. The compressor includes an electric motor connected to a frequency converter, which converts the motor's input frequency to the compressor's desired output frequency. By matching the motor speed to the compressor's operating frequency, the compressor achieves optimal energy transfer while maintaining continuous operation. This approach eliminates the need for separate speed controllers and enables precise control of the compressor's rotational speed, thereby reducing energy consumption.

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