9 results about "Centrifugal chiller" patented technology

The utility model discloses a pressure stabilizing throttling device for a centrifugal water chilling unit, which relates to the technical field of throttling devices, and comprises a connecting pipeline, the top end of the connecting pipeline is clamped with a mounting seat, the top end of the mounting seat is fixedly connected with a limiting block, and the top end of the limiting block is in threaded connection with a screw rod. By the adoption of the structure, the bottom end of the rotating column can rotate in situ by screwing the screw rod and the rotating shaft, the connecting block inserted into the inner side of the strip-shaped opening can also prevent the throttle plate from angle deviation, and then the rotating column can be pushed or pulled to move through the screw rod so that the height of the throttle plate can be adjusted; a good pressure stabilizing and throttling effect can be achieved through blocking of the throttling plate, the sealing block can be located on the inner side of the strip-shaped opening all the time when the height of the throttling plate is adjusted, and therefore the point position of the strip-shaped opening can be effectively sealed, and normal use of the throttling plate cannot be hindered while the using sealing performance of the throttling plate is improved.

The invention relates to a compressor and an air conditioner, and belongs to the technical field of air conditioner compressors. The compressor comprises a shell, a main shaft, a motor, a first impeller, a second impeller, a backflow device and a sealing structure; wherein the main shaft is rotationally connected into the shell; the motor drives the spindle to rotate; the first impeller is coaxially connected to the main shaft; the second impeller is coaxially connected to the main shaft, and the second impeller and the first impeller are arranged at intervals; the second impeller is positioned in the shell; the backflow device is fixed in the shell and located between the first impeller and the second impeller. The sealing structure comprises a ring body and turbine blades, and the ring body is rotationally connected to the shell. The turbine blades are arranged on one side of the ring body and located on the inner side of the backflow device. A flow path is formed in the shell, and the turbine blades of the sealing structure are located in the flow path. According to the sealing structure, the turbine blades are arranged in the flow path on the inner side of the backflow device and rotate passively with backflow device outlet airflow pre-rotation as power, the inlet flow field of the second impeller is optimized by consuming pre-rotation, and the acting efficiency of the second impeller is improved.

This application relates to a chiller unit, comprising: a refrigeration circuit, an electric oil supply circuit, and a pneumatic oil supply circuit, wherein the pneumatic oil supply circuit and the electric oil supply circuit are connected in parallel. This application sets the electric and pneumatic oil supply circuits to work together. Under normal conditions, the electric oil supply circuit can stably provide lubricating oil to the compressor, ensuring the lubrication needs during normal operation of the unit. When the electric oil supply circuit malfunctions due to sudden power outages, oil pump failures, or other situations, the control element switches to a second state, using the high-pressure gaseous refrigerant in the condenser to drive the pneumatic oil pump through the pneumatic drive pipeline to continuously deliver lubricating oil to the compressor. This design effectively solves the problem of lubricating oil circulation interruption in conventional centrifugal chiller units under emergency conditions, avoids abnormal mechanical wear of the compressor bearings caused by dry friction due to lack of oil, provides reliable protection for the bearings and core components of the compressor, helps the unit operate safely and stably, and significantly extends the unit's service life.

This invention discloses a multi-media synergistic heat dissipation integrated chiller, relating to the field of chiller unit technology. It includes a magnetic levitation centrifugal chiller unit, comprising a condenser, a throttling valve, an evaporator, and a compressor. The condenser, throttling valve, evaporator, and compressor are sequentially connected in a ring to form a refrigerant flow path. A tank serves as the shell of the condenser to isolate it from the external environment. This invention uses a vortex assembly to drive the gaseous refrigerant inside the tank to form a vortex. In this vortex state, the outer gas layer experiences a temperature increase due to a large velocity gradient and intense friction, while the inner gas layer maintains a low temperature after expansion and cooling. Heat is concentrated in the area near the inner wall of the tank, effectively improving the efficiency of heat transfer outwards and creating conditions for subsequent efficient heat dissipation.

This utility model relates to a marine air-suspension variable frequency centrifugal chiller unit. The exhaust port of the dynamic pressure air-suspension centrifugal compressor is connected to a condenser. The condenser outputs two separate lines: one line connects via an electronic expansion valve to the inlet of the motor cooling system of the dynamic pressure air-suspension centrifugal compressor, and the outlet of the motor cooling system connects to the return air port of the dynamic pressure air-suspension centrifugal compressor; the other line splits into two separate inlets, one for a plate heat exchanger and the other for a gas supply. The outlet of the other gas supply line connects via a pressure sensor and a temperature sensor to the gas supply port of the dynamic pressure air-suspension centrifugal compressor. The outlet of the first gas supply line connects via an electronic expansion valve to the first thermal stage of a dry evaporator, and then via a gas-liquid separator to the return air port of the dynamic pressure air-suspension centrifugal compressor. Its structure is simple, capable of adapting to complex load changes on ships, and can provide integrated real-time cooling for the compressor motor, ensuring stable and safe compression and cooling under complex load variations.

This invention relates to the field of refrigeration technology and discloses an energy-saving magnetic levitation centrifugal chiller unit, including an evaporator, a condenser mounted on the back of the evaporator, a centrifugal compressor assembly on the top of the evaporator, and a flash evaporator mounted on the top of the condenser; the centrifugal compressor assembly includes a centrifugal compressor body. By setting up a maintenance worm gear, maintenance worm, connecting plate, and connecting pipe, rotating the maintenance worm gear drives the maintenance worm gear, connecting plate, connecting pipe, and the entire centrifugal compressor body to rotate synchronously, realizing the switching of the centrifugal compressor body from a vertical position at the top of the condenser to a horizontal position on the side. This effectively reduces the maintenance height of the centrifugal compressor body, allowing maintenance personnel to closely access and perform maintenance operations on core components without the need for lifting equipment such as hand-operated hoists. This not only simplifies the maintenance process and saves maintenance time but also completely avoids the safety risks associated with lifting operations.

The utility model relates to the technical field of water chilling units, in particular to an energy-saving magnetic suspension frequency conversion centrifugal water chilling unit which comprises a base station device and an assembly table which are arranged at the bottom of the energy-saving magnetic suspension frequency conversion centrifugal water chilling unit, and when a second piston plate is located at the foremost end, a third piston plate is located at the bottommost end. A first piston plate is located at the bottommost end, convenient moving treatment can be achieved, a rotating disc is rotated, a screw and a disc rotate in a threaded mode, a second piston plate extrudes oil liquid backwards, the oil liquid extrudes a third piston plate upwards, the first piston plate and the third piston plate drive a second connecting rod and a trundle assembly to move upwards, and the trundle assembly is lifted and stored; by means of the arrangement, the installation height of the energy-saving type magnetic suspension frequency conversion centrifugal water chilling unit can be conveniently adjusted through the structure body, and the energy-saving type magnetic suspension frequency conversion centrifugal water chilling unit can be conveniently moved through the structure body.

The utility model discloses a throttling pipeline structure of an air suspension variable frequency centrifugal water chilling unit, which belongs to the technical field of water chiller and comprises a compressor, an evaporator, a condenser and an economizer, the compressor is communicated with the economizer through an air supply pipeline, and the compressor is communicated with the condenser through an exhaust pipeline. The compressor is communicated with the evaporator through a shutdown pipeline and an air suction pipeline, the condenser is communicated with the evaporator through a hot air bypass pipeline, the condenser is communicated with the economizer through a first-stage throttling pipeline, and the economizer is communicated with the evaporator through a second-stage throttling pipeline. The throttling pipelines are connected with the container through flanges, so that an operator can conveniently disassemble and install the throttling pipelines and subsequently overhaul a unit; meanwhile, the electric ball valve and the throttling orifice plate are connected in series, the problem that the opening degree of the electric ball valve is set to be too large can be effectively solved, and therefore the water chilling unit can be better matched, and the water chilling unit can stably operate to achieve the ideal refrigeration effect.

The invention belongs to the technical field of airtight tests, and particularly discloses a compressed air manufacturing device for an airtight test of a centrifugal water chilling unit, which comprises a motor, a compressor, a first buffer tank, a second buffer tank, a pressure regulating assembly, an oil-water separator and an air filter, the motor drives the compressor to operate; the air filter is mounted at the air inlet end of the compressor; the compressor is connected with the first buffer tank, the first buffer tank is connected with the second buffer tank, and an outlet of the second buffer tank is connected with the pressure regulating assembly; an outlet of the first buffer tank and an outlet of the second buffer tank are respectively formed in the upper sides of the first buffer tank and the second buffer tank; the outlet end of the pressure regulating assembly is connected with a valve, the outlet end of the valve is connected with an inlet of the oil-water separator, and an outlet of the oil-water separator is connected with the centrifugal water chilling unit. The airtight test device can meet the airtight test requirements of the centrifugal water chilling unit, and can filter the compressed air to ensure the dryness of the compressed air.