A cylinder cooling device for a piston air compressor

Abstract

The invention relates to the technical field of air compressors, and discloses a cylinder cooling device of a piston air compressor. The device comprises a cylinder block; a sleeve is mounted on the outer wall of the cylinder block; a positioning cylinder is mounted at the top end of the sleeve; an extension pipe is mounted in the positioning cylinder; the extension pipe is filled with an expansion object; and the positioning cylinder, the extension pipe and the extension object are heated to form a transmission device. The surface temperature of the cylinder block is transmitted into the extension pipe for self-adaption expansion of the expansion object in the extension pipe along with the surface temperature of the cylinder block; when the temperature of the cylinder block is gradually increased, the expansion object drives the extension pipe to axially move, so that a rubber rod can be opened and closed by different angles; liquid in a water storage plate is extruded by using expansion strength to flow into the sleeve; and the cooling device can be adjusted in a self-adaption mode along with the temperature of the cylinder block, so that the intelligent cooling of the cylinder block can be realized without arranging such other parts as a temperature sensor.

Description

technical field [0001] The invention relates to the technical field of air compressors, in particular to a cylinder cooling device of a piston air compressor. Background technique [0002] The piston air compressor is one of the reciprocating air compressors. Its compression element is a piston, which reciprocates inside the cylinder and presses the piston with the gas. [0003] The working principle of the existing piston air compressor is as follows: Figure 5 As shown, the rotary motion of the prime mover is converted into the linear reciprocating motion of the piston by the crank-link mechanism, and the suction, compression and discharge of gas are carried out by means of the automatic opening and closing of the intake and exhaust valves. The cylinder is the core component of the air compressor , the cylinder is subjected to the reciprocating motion of the piston when it is working, causing the friction between the piston and the inner wall of the cylinder to generate a ...

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Problems solved by technology

[0003] The working principle of the existing piston air compressor is as follows: Figure 5 As shown, the rotary motion of the prime mover is converted into the linear reciprocating motion of the piston by the crank-link mechanism, and the suction, compression and discharge of gas are carried out by means of the automatic opening and closing of the intake and exhaust valves. The cylinder is the core component of the air compressor , the cylinder is subjected to the reciprocating motion of the piston when it is working, causing the friction between the piston and the inner wall of the cylinder to generate a large amount of heat. Affected by the working environment of the cylinder, the generated heat is accumulated in the air compressor and cannot be discharged, resulting in fine grains between the inner wall of the cylinder and the piston material. Deformation increases the contact area between the piston and the inner wall of the cylinder, aggravates the friction between the piston and the inner wall of the cylinder, and increases the temperature of the cylinder. After the lubricating oil inside the cylinder is heated, it is easy to cause the lubricating oil to oxidize and deteriorate, the viscosity drops, and the lubrication function is lost. At the same time, after the lubricating oil is oxidized, it is easy to form carbon black, which remains in the inner wall of the piston and cylinder, further aggravating the wear of the inner wall of the piston and cylinder, and the worn cylinder produces trace metal particles, which are brought into the gap between the piston and the inner wall of the cylinder by the lubricating oil In this way, a large amount of dirt is filled between the piston and the inner wall of the cylinder, which leads to increased wear of the inner wall of the piston and cylinder, and reduces the sealing performance of the cylinder, which affects the normal use of the cylinder.

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