Rotary compressor and refrigeration system with same
A rotary compressor and compression mechanism technology, applied in the direction of rotary piston machinery, compressors, rotary piston pumps, etc., can solve the problem of raising the temperature and pressure of the low-pressure side heat exchanger, which is not conducive to the operating efficiency of the refrigeration cycle device, Waste the heat of the heat exchanger on the high-pressure side, etc., and achieve the effect of the quick start function
Active Publication Date: 2020-06-23
GUANGDONG MEIZHI COMPRESSOR
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Problems solved by technology
[0004] Among them, when the compressor stops, the refrigerant in the high-pressure side heat exchanger will quickly flow into the low-pressure side heat exchanger through the gap between the components in the compressor, thereby increasing the temperature in the low-pressure side heat exchanger and pressure, waste the heat in the high-pressure side heat exchanger, and lose the cooling capacity in the low-pressure side heat exchanger, which is not conducive to the operating efficiency of the refrigeration cycle device
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[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0037] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invent...
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The invention discloses a rotary compressor and a refrigeration system with the rotary compressor. The rotary compressor comprises a shell, a compressing mechanism part and a pressure relief device. The compressing mechanism part is arranged in the shell, and comprises an air cylinder. An air suction cavity communicating with an air suction opening is formed in the air cylinder, and the pressure relief device is arranged on the compressing mechanism part. The pressure relief device comprises a pressure relief channel and a pressure relief part. The pressure relief channel communicates with thespace in the air suction opening and the shell, and the pressure relief device is constructed to control the pressure relief part to open or close the pressure relief channel according to the actualpressure difference delta Pr between the pressure in the shell and the pressure of the air suction opening; the pressure relief device has set pressure delta P; and when the actual pressure differencedelta Pr is reduced to the set pressure delta P, the pressure relief channel is opened by the pressure relief part. Thus, the pressure difference adjusting capacity of the rotary compressor can be improved through the pressure relief device, and therefore pressure balance of the rotary compressor can be fast achieved; and then the need of starting the rotary compressor again is met, and the faststarting function of the rotary compressor is achieved.
Description
technical field [0001] The present application relates to the technical field of refrigeration equipment, in particular, to a rotary compressor and a refrigeration system having the same. Background technique [0002] In the cooling cycle device, the refrigerant is converted between low temperature and low pressure and high temperature and high pressure through the compression of the compressor and the throttling of the throttling device, and the heat exchanger is used to exchange heat with the surrounding environment, thereby Realize cooling or heating. [0003] In the related art, when the compressor stops running, the pressure difference between the suction side and the discharge side of the compressor needs to meet a certain range before the compressor can be restarted. In particular, the rolling rotor is a compressor, which requires high precision for the pressure difference, for example: within 1kgf / cm2. Failure to adjust the pressure difference between the intake an...
Claims
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IPC IPC(8): F04C18/356F04C28/24F04C29/00F04C29/12F04C29/06F25B1/04F25B41/00F25B41/40
CPCF04C18/3562F04C28/24F04C29/00F04C29/12F04C29/06F25B1/04F25B41/00F04C2240/50F04C2240/10F04C2240/30
Inventor 高斌
Owner GUANGDONG MEIZHI COMPRESSOR