High-pressure-resistant wear-resisting contact type reciprocation sealing with washing ring

A high-pressure and wear-resistant technology, which is applied to parts of pumping devices for elastic fluids, variable displacement pump parts, machines/engines, etc., can solve the problems of easy failure of gland side packing, failure of solid particle wear, Problems such as uneven force distribution can avoid the failure of gland side packing, uniform contact stress and improve reliability
CN101070841AInactive Publication Date: 2007-11-14JIANGSU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2007-11-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

A high pressure resistance and anti-abresive reciprocating seal with flushing ring relates to the lunger pistom of reciprocating pump and packing seal, it is characterized in that two set of packing seal combines with a set of muff clearance seal, namely two guide sleeve closing side of cylinder combines with a flushing ring and main packing seal with subsidiary packing seal closing air. The gland of main packing seal is a seal box of subsidiaty one. Injecting flushing lubricating oil into between main and subsidiary packing seal, the front-end of main packing seal has a flushing ring, which adopting synchronized hydraulic oil to be as flush fluid of packing box, the effect of flush fuid is that flushing the particle medium between lunger pistom and main packing seal, at the same tine between filling and lunger pistom formed a fluid film to avoid directing friction between filling and lunger pistom,and takes away heat caused by friction, which can prolong the life of seal. The invention is applicable to all conveyors solid particles media reciprocating pump.
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Description

technical field

[0001] The invention relates to a plunger and a packing seal of a reciprocating pump, in particular to a high-pressure resistant and wear-resistant contact reciprocating seal with a flushing ring, which is used for the plunger and packing seal of a reciprocating pump conveying solid particle media. Background technique

[0002] For a long time, the plunger and packing seal of reciprocating pumps have always been important factors affecting the safe and reliable use of reciprocating pumps. According to the statistical analysis of reciprocating pump failures, the failure of plunger and packing seals accounts for more than half of the failures. Especially when the conveying medium of the pump is high temperature, high pressure, and contains solid particles, if the packing seal is used improperly, there will be problems such as serious leakage and short service life. Most of the traditional plunger and packing seal structures are shown in Figure 2 , the filling o...

Claims

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