High-pressure liquid collection type pressure regulating overflow safety valve

Abstract

The invention relates to a high-pressure liquid collection type pressure regulating overflow safety valve. The high-pressure liquid collection type pressure regulating overflow safety valve comprises a valve body, a valve cover and a valve core seat, wherein a valve core locating sleeve is assembled in a locating sleeve mounting hole of the valve core seat; a flow guide hole connected with a valve cavity is formed in the valve core seat; a valve core is embedded in the valve core locating sleeve; a valve rod seat is arranged in the valve cavity, and an overflow hole is formed in a conical surface, which is in contact with the valve core locating sleeve, of the valve rod seat; and a hollow valve rod connected with the overflow hole is inserted and arranged in the valve rod seat, a belleville spring is arranged on the hollow valve rod in a sleeved manner, a hollow adjusting screw is arranged in a hollow screw hole of the valve cover in a threaded manner, and a locknut is assembled on the extended adjusting screw. The high-pressure liquid collection type pressure regulating overflow safety valve is capable of guiding, concentratedly collecting and directionally discharging overflowed liquid arbitrarily discharged in the past in a high-pressure liquid collection type pressure regulating overflow manner, thereby improving working environment conditions of a site. The pretightening force of the spring is changed by the adjusting screw in a certain pressure range so as to enable opening pressure to have adjustability. The high-pressure liquid collection type pressure regulating overflow safety valve also has the advantages of simple and compact structure, convenience in disassembly, long service life and the like.

Description

technical field [0001] The invention belongs to the technical field of safety valve manufacturing, in particular to a high-pressure liquid-collecting type pressure-regulating, overflowing and safety valve. Background technique [0002] At present, reciprocating pumps are divided into: low-pressure pumps (<2.5MPa); medium-pressure pumps (2.5-10MPa); high-pressure pumps (10-100MPa); ultra-high pressure (>100MPa). [0003] High-pressure pumps are high-pressure power equipment commonly used in modern industries. Widely used in washing, sand cleaning, rust removal, liquid transportation, hydraulic power, engineering excavation, metal cutting, stone polishing and other operations, as well as mining, construction, cement, automobile, petrochemical, municipal environmental protection and other fields. High-pressure adjustable pressure-collecting overflow safety valve is an indispensable safety protection device for high-pressure pumps and system equipment. It is mainly used ...

AI Technical Summary

Problems solved by technology

see Figure 20 , the overflow safety valve with the above structure has defects such as poor sensitivity, poor sealing effect, and short service life.

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