Temperature control valve for controlling cooling water flow of air cylinder of piston type compressor

Abstract

The invention relates to a temperature control valve for controlling the cooling water flow of an air cylinder of a piston type compressor. The temperature control valve comprises a first O-shaped sealing ring, a first cap nut, a temperature sensing element, a water diverting disc, a valve body, a valve element, a spring, a second cap nut and an adjusting pad. The first cap nut and the second capnut are connected with the two ends of the valve body respectively, the first O-shaped sealing ring is arranged at the joint position of the first cap nut and a joint of an outer pipeline, an inner cavity is formed in the center of a device composed of the first cap nut, the valve body and the second cap nut, currents sequentially pass through the temperature sensing element, the water diverting disc, the valve element and the spring in the temperature control valve in sequence and then flow out of the valve body, the temperature sensing element is connected with the water diverting disc, an ejector rod of the temperature sensing element is sleeved with the valve element, the position of the temperature sensing element is adjusted through the adjusting pad, and the valve element abuts against the spring. The structure is compact, a basic flow opening and a bypass adjusting flow opening are integrated in the valve body, the temperature of water flowing through a valve cavity is automatically adjusted, electronic control and manual operation are not needed, the manufacturing and operating cost is low, and high practical value is achieved.

Description

technical field [0001] The invention relates to the field of compressors, in particular to a temperature control valve for controlling the cooling water flow of a cylinder of a piston compressor. Background technique [0002] Large water-cooled oil-free lubricated compressors are more and more widely used in the national economy and are important equipment in modern production processes. Therefore, the safety, reliability and durability of their operation are very high. Controlling quality has a direct impact on this. The invention is aimed at the automatic control of the cooling water flow rate of the large-scale piston-type water-cooled oil-free lubricating compressor, and takes the temperature of the cooling water flowing out of the cylinder as the control object, without the need for an electric control system and manual adjustment, and realizes the optimum compression temperature in the cylinder Optimum passive adaptive control. [0003] For piston air compressors and...

AI Technical Summary

Problems solved by technology

This method needs to be inspected by experienced personnel, and there is a risk of human error operation, which increases safety hazards and labor costs.

2. Series connection water supply mode: the cooling water first passes through the interstage cooler, and the outlet water (heated) flows into the cylinder after the cold and heat exchange, which has a certain effect on the anti-condensation of the cylinder, but when the temperature condition changes, the water temperature changes. Larger, especially in hot weather, where too high a water temperature can cause inadequate cooling and create a risk of compressed air running too hot

3. Parallel water supply mode: the cooling water is directly connected to the cylinder. Although the cooling effect is good, there is excessive cooling, especially in cold days. The wear of the oil piston ring is accelerated, and even the mirror surface of the cylinder is corroded

This method can adjust the amount of cooling water within a reasonable range, but the structure is complex and requires a certain installation space. The reliability of the solenoid valve is high, and the support of components such as control circuits is required, and the cost is relatively high. The control circuit and solenoid valve have a certain failure rate, and the installation is time-consuming and laborious

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