Fluid hydrodynamic mechanical seal
The utility model relates to a fluid hydrodynamic mechanical seal used for a high temperature and pressure chemical centrifugal pump in the coal chemical industry of coal liquefaction, coal replacing oil, oil making from coal, etc. The fluid hydrodynamic mechanical seal comprises a moving ring seat,...
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| creator | JIANG,YIN SHENG |
| description | The utility model relates to a fluid hydrodynamic mechanical seal used for a high temperature and pressure chemical centrifugal pump in the coal chemical industry of coal liquefaction, coal replacing oil, oil making from coal, etc. The fluid hydrodynamic mechanical seal comprises a moving ring seat, a moving ring, a spring, a shaft sleeve and a stationary ring, wherein the spring is arranged between the moving ring and the moving ring seat. The fluid hydrodynamic mechanical seal is characterized in that a plurality of fluid hydrodynamic slots are uniformly distributed on the end surface of the moving ring or the stationary ring, and the slot can make liquid to cool a farther sealing end surface strongly when a sealing ring rotates; when the cooling is carried out, comet-shaped lubricating wedges of which the number is equal to the number of the slots are formed on the initial surface of the sealing ring. The utility model can satisfy the maintenance of no leakage for conveying high temperature and pressure media for a long time and can also satisfy the high reliability, high stability and flexible tracing ability in high pressure of the mechanical seal. Thereby, the service life of a pump can be raised. |
| format | Patent |
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The fluid hydrodynamic mechanical seal is characterized in that a plurality of fluid hydrodynamic slots are uniformly distributed on the end surface of the moving ring or the stationary ring, and the slot can make liquid to cool a farther sealing end surface strongly when a sealing ring rotates; when the cooling is carried out, comet-shaped lubricating wedges of which the number is equal to the number of the slots are formed on the initial surface of the sealing ring. The utility model can satisfy the maintenance of no leakage for conveying high temperature and pressure media for a long time and can also satisfy the high reliability, high stability and flexible tracing ability in high pressure of the mechanical seal. Thereby, the service life of a pump can be raised.</description><language>eng</language><subject>BLASTING ; CYLINDERS ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT PUMPS ; PISTONS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; SEALINGS ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20061025&DB=EPODOC&CC=CN&NR=2830730Y$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20061025&DB=EPODOC&CC=CN&NR=2830730Y$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JIANG,YIN SHENG</creatorcontrib><title>Fluid hydrodynamic mechanical seal</title><description>The utility model relates to a fluid hydrodynamic mechanical seal used for a high temperature and pressure chemical centrifugal pump in the coal chemical industry of coal liquefaction, coal replacing oil, oil making from coal, etc. The fluid hydrodynamic mechanical seal comprises a moving ring seat, a moving ring, a spring, a shaft sleeve and a stationary ring, wherein the spring is arranged between the moving ring and the moving ring seat. The fluid hydrodynamic mechanical seal is characterized in that a plurality of fluid hydrodynamic slots are uniformly distributed on the end surface of the moving ring or the stationary ring, and the slot can make liquid to cool a farther sealing end surface strongly when a sealing ring rotates; when the cooling is carried out, comet-shaped lubricating wedges of which the number is equal to the number of the slots are formed on the initial surface of the sealing ring. The utility model can satisfy the maintenance of no leakage for conveying high temperature and pressure media for a long time and can also satisfy the high reliability, high stability and flexible tracing ability in high pressure of the mechanical seal. Thereby, the service life of a pump can be raised.</description><subject>BLASTING</subject><subject>CYLINDERS</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT PUMPS</subject><subject>PISTONS</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>SEALINGS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFByyynNTFHIqEwpyk-pzEvMzUxWyE1NzkjMy0xOzFEoTk3M4WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8c5-RhbGBubGBpGRxkQoAQB40iYg</recordid><startdate>20061025</startdate><enddate>20061025</enddate><creator>JIANG,YIN SHENG</creator><scope>EVB</scope></search><sort><creationdate>20061025</creationdate><title>Fluid hydrodynamic mechanical seal</title><author>JIANG,YIN SHENG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN2830730YY3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2006</creationdate><topic>BLASTING</topic><topic>CYLINDERS</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT PUMPS</topic><topic>PISTONS</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>SEALINGS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>JIANG,YIN SHENG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JIANG,YIN SHENG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fluid hydrodynamic mechanical seal</title><date>2006-10-25</date><risdate>2006</risdate><abstract>The utility model relates to a fluid hydrodynamic mechanical seal used for a high temperature and pressure chemical centrifugal pump in the coal chemical industry of coal liquefaction, coal replacing oil, oil making from coal, etc. The fluid hydrodynamic mechanical seal comprises a moving ring seat, a moving ring, a spring, a shaft sleeve and a stationary ring, wherein the spring is arranged between the moving ring and the moving ring seat. The fluid hydrodynamic mechanical seal is characterized in that a plurality of fluid hydrodynamic slots are uniformly distributed on the end surface of the moving ring or the stationary ring, and the slot can make liquid to cool a farther sealing end surface strongly when a sealing ring rotates; when the cooling is carried out, comet-shaped lubricating wedges of which the number is equal to the number of the slots are formed on the initial surface of the sealing ring. The utility model can satisfy the maintenance of no leakage for conveying high temperature and pressure media for a long time and can also satisfy the high reliability, high stability and flexible tracing ability in high pressure of the mechanical seal. Thereby, the service life of a pump can be raised.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
| recordid | cdi_epo_espacenet_CN2830730YY |
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| subjects | BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS PISTONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS |
| title | Fluid hydrodynamic mechanical seal |
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