Double elliptical track groove reciprocating transmission piston type, diaphragm type compressor

Abstract

An even number of oilless, waterless and noiseless piston type compressor heads (19) are arranged on the upper end face and the lower end face of a head tray in a center symmetry manner, each end face can be provided with two or four or six or eight or multiple heads, center lines of the heads penetrate the center of the tray, and air inlet pipes and air outlet pipes of the heads are connected in series to form a main air inlet pipe and a main air outlet pipe correspondingly. The double-elliptical track grooves and the double T-shaped rolling connection rods are used for replacing a crank connection rod for transmission, the machine model is ingenious in structure conception, combinations complement each other, and reciprocating drive piston type and diaphragm type compressor with the double-elliptical track grooves is scientific, reasonable, high in efficiency, capable of saving energy, eliminating vibration and removing pulse, stable in running, safe and reliable.

Description

[0001] 1. Technical Field: Aerodynamic Machinery 2. Background technology: [0002] Widely used in crank-connecting rod piston and diaphragm compressors in many industrial fields such as mining, metallurgy, oil refining, petroleum exploration, petrochemical, chemical fertilizer, pharmaceutical and chemical, aerodynamic, refrigeration, air conditioning, air separation, etc. Because it is suitable for a wide range of pressure, high, medium and low, it is convenient to adjust the pressure, and it is suitable for a variety of media working fluids. In addition to the ultra-high pressure range, in the medium and low pressure ranges, the body does not have high requirements for materials, and the loss of exhaust airflow is small. With many advantages such as high efficiency, it has always occupied the position of the mainstream model in the field of compressors, and its market share has been rising steadily. However, this model structure itself has structural shortcomings and disadva...

AI Technical Summary

Problems solved by technology

However, this model structure itself has structural shortcomings and disadvantages that are difficult to overcome, which greatly affect the development of enterprises in the application field and environmental protection.

(1) The structure of the crank-connecting-rod-piston type will inevitably produce high-speed reciprocating inertial impact vibration, which is the source of vibration generated during the operation of this type of equipment. The torsional vibration of the curved system, the above two vibrations, once they generate noise and pollute the environment, are not conducive to environmental protection

(2) The internal cause of the fatigue damage of the machine head damages the body, shortens the service life of the machine, increases the maintenance workload, and increases the production cost

(3) The structure of the crank-connecting-rod-piston itself is already bulky and complicated. In addition to the intermediate transmission mechanism of the cross-head chute connecting rod, an additional balance mass must be added in order to balance the inertial force, centrifugal force, centrifugal moment, etc., and at the same time The arrangement of cylinders must be designed in various forms such as symmetrical balance type, opposite type, angle type, angle type, etc., which will inevitably make the structure of the whole machine more complicated and bulky, occupy a large area, consume materials and labor, and cost high

(4) The periodicity of suction and exhaust in the process of converting the original force into the linear reciprocating motion of the piston by the crank connecting rod mechanism causes the air flow in the suction and discharge pipe to fluctuate. The direct result is: (1) Increase the suction resistance of the compressor to make it The suction capacity is reduced; (2) Increase the discharge resistance, which will increase the additional load of the pipeline and increase the operating cost; (3) When the discharge pipeline is slender and the system does not have sufficient back pressure, the pulsating inertial force may cause the suction valve and discharge valve Open together, causing the fluid to flow directly from the suction pipe to the discharge pipe, which will damage the equipment; (4) cause suction and discharge pressure pulsation, pipeline vibration, damage the entire system, and threaten the safe operation of the compressor; (5) make the compressor (5) The crank connecting rod structure converts the rotary motion of the motive force into the linear motion of the piston, pressurizes the gas, and increases its pressure energy. , will inevitably produce the following kinds of energy consumption losses of useless work: (1) generate the lateral thrust of the piston and increase the friction loss; (2) increase the energy consumption of the extra balance mass in order to balance the reciprocating inertial force, centrifugal force and centrifugal moment; ( 3) Generate a normal force perpendicular to the rotational force in the tangential direction, increasing the friction force at the center of rotation of the crank

The sum of the above three types of useless work force is greater than the tangential direction rotation force of useful work, so this structure converts the rotation motion of the motive force into the linear motion of the piston, pressurizes the working medium, and increases its pressure energy. The conversion efficiency of the function is less than 50%. , the function conversion efficiency is low, and the operating cost is high

(6) The processing technology of the crankshaft is complicated, the technical requirements are high, and the processing is difficult. The more the number of cylinders, the more cranks, the longer the crankshaft, the more changes in the relative stagger angle of the cranks, the more difficult it is to process, the higher the processing cost, and the higher the processing cost of the crankshaft. Has become the "bottleneck" of the development of multi-cylinder high-power compressors

But it also has imperfect "tire belt" problems: (1) the flow rate of the extruded fluid is low and the flow rate is unstable; (2) the supporting drive device: A is mechanical, which is the crankshaft linkage mechanism, and its shortcomings are as follows It has been listed and will not be repeated; B hydraulic (pneumatic) transmission mechanism is complex, heavy, occupies a large area, high cost, and high operating cost

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