Gas suction structure of compressor

Abstract

The invention discloses a gas suction structure of a compressor. The structure comprises a gas inlet channel provided radially on a gas cylinder. The structure also comprises a suction channel which is formed on the inner side of the gas cylinder along a gas cylinder axial direction. The suction channel penetrates the two end faces of the gas cylinder. The suction channel communicates with the gas inlet channel, and is arranged vertically. The gas inlet of the suction channel on the inner wall of the gas cylinder is a rectangular gas inlet formed on the axial direction of the gas cylinder and penetrating the two end faces of the gas cylinder. The rectangular gas inlet is arranged close to a sliding vane groove of the gas cylinder. The suction channel is convenient to manufacture. Also, with the suction channel, gas cylinder suction volume can be increased, a relatively ample buffer space is provided, such that suction resistance can be reduced, and gas can flow into the gas cylinder more smoothly.

Description

【Technical field】 [0001] The invention relates to compressor equipment, in particular to a compressor suction structure. 【Background technique】 [0002] A rotary compressor generally includes a closed casing, a cylinder, an upper bearing, a lower bearing, a crankshaft, a motor, sliding vanes, rollers, etc. The airtight casing is provided with a suction pipe and an exhaust pipe, the cylinder is set in the airtight casing, the upper and lower bearings are arranged at the upper and lower ends of the cylinder, the air suction port and the exhaust port are opened on the cylinder, and the rollers are installed in the airtight casing. On the eccentric crankshaft, the roller rolls along the inner wall of the cylinder during operation, and the slide piece is installed in the slide piece groove opened on the cylinder. When the roller rolls in the working chamber, the front end of the slide piece is kept in contact with the roller under the action of the spring The outer circle is in ...

AI Technical Summary

Problems solved by technology

like figure 1 and figure 2 As shown, the existing cylinder suction hole x is all set in the middle of the cylinder inner wall (vertical axial direction), and the suction hole x is a circular hole directly connected to the cylinder, and when the cylinder sucks air, it will The demand for gas in the direction of the straight axis is uniform, so turbulent flow occurs after the gas is sucked into the cylinder, resulting in increased suction resistance and additional vibration and noise; in addition, when the compressor is working, only when the rolling When the sub covers the suction hole x, the roller rotates counterclockwise figure 2 Only when the point A is in the middle, the cylinder can effectively inhale air; in order to ensure sufficient air inhalation for the compressor, the air inlet should not be too small, and the circular inhalation hole x will cause figure 2 The α angle in the middle is relatively large, which reduces the effective volume of the cylinder, which will cause the problem of insufficient heating capacity of the compressor, especially when the frequency conversion compressor is running at high frequency.

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