Sealing structure of plunger metering pump

A plunger metering pump sealing structure comprises a plunger and a pump head, a first-stage sealing assembly and a second-stage sealing assembly are arranged between the plunger and the pump head, and each of the first-stage sealing assembly and the second-stage sealing assembly is formed by sequen...

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Bibliographic Details
Main Authors ZHANG SHIYONG, HU ZIMU
Format Patent
LanguageChinese
English
Published 09.06.2023
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:A plunger metering pump sealing structure comprises a plunger and a pump head, a first-stage sealing assembly and a second-stage sealing assembly are arranged between the plunger and the pump head, and each of the first-stage sealing assembly and the second-stage sealing assembly is formed by sequentially stacking and combining a first sealing ring, a plurality of second sealing rings and a third sealing ring. A crimping part is clamped at the front end of the pump head, and the plunger penetrates through the crimping part; wherein a first-stage sealing assembly is arranged between the plunger and the pump head, a second-stage sealing assembly is arranged between the plunger and the crimping part, and the tail end of the crimping part abuts against the first-stage sealing assembly. A liquid storage cavity is formed between the first-stage sealing assembly and the second-stage sealing assembly. According to the plunger metering pump, a two-stage sealing structure is arranged, and a safety is additionally provi
Bibliography:Application Number: CN202121415057U