Reverse hydraulic damper of screw pump
The utility model discloses a reverse hydraulic damper of a screw pump and belongs to the technical field of oil field development. The reverse hydraulic damper of the screw pump comprises a hollow rotating shaft, bearings, piston cylinders, upper covers, lower covers, upper pressing blocks, lower p...
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| creator | YU KAIAN WANG LIBIN WANG SHULONG |
| description | The utility model discloses a reverse hydraulic damper of a screw pump and belongs to the technical field of oil field development. The reverse hydraulic damper of the screw pump comprises a hollow rotating shaft, bearings, piston cylinders, upper covers, lower covers, upper pressing blocks, lower pressing blocks, balls, supporting ring sleeves, pistons, large springs, cylindrical rollers, roller path bodies, check valve assemblies, reverse stop overrunning couplers and jaw clutches. According to the reverse hydraulic damper of the screw pump, due to the check overrunning couplers, the lower pressing blocks, the piston cylinders and the check valve assemblies, when a screw pump sucker rod is rotated reversely, the maximum reverse rotating speed of the sucker rod is limited, energy stored in the sucker rod is consumed at the same time, and the reverse hydraulic damper does not need to be operated by operators in a close range. In addition, hydraulic oil is packaged in the reverse hydraulic damper of the screw pump, a hydraulic station is not needed, and therefore frequent maintenance is not needed, safety and reliability are achieved, and the reverse hydraulic damper is easy to apply and popularize. |
| format | Patent |
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The reverse hydraulic damper of the screw pump comprises a hollow rotating shaft, bearings, piston cylinders, upper covers, lower covers, upper pressing blocks, lower pressing blocks, balls, supporting ring sleeves, pistons, large springs, cylindrical rollers, roller path bodies, check valve assemblies, reverse stop overrunning couplers and jaw clutches. According to the reverse hydraulic damper of the screw pump, due to the check overrunning couplers, the lower pressing blocks, the piston cylinders and the check valve assemblies, when a screw pump sucker rod is rotated reversely, the maximum reverse rotating speed of the sucker rod is limited, energy stored in the sucker rod is consumed at the same time, and the reverse hydraulic damper does not need to be operated by operators in a close range. In addition, hydraulic oil is packaged in the reverse hydraulic damper of the screw pump, a hydraulic station is not needed, and therefore frequent maintenance is not needed, safety and reliability are achieved, and the reverse hydraulic damper is easy to apply and popularize.</description><language>eng</language><subject>BLASTING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MEANS FOR DAMPING VIBRATION ; MECHANICAL ENGINEERING ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS ; SHOCK-ABSORBERS ; SPRINGS ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2015</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=20150225&DB=EPODOC&CC=CN&NR=204175594U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150225&DB=EPODOC&CC=CN&NR=204175594U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YU KAIAN</creatorcontrib><creatorcontrib>WANG LIBIN</creatorcontrib><creatorcontrib>WANG SHULONG</creatorcontrib><title>Reverse hydraulic damper of screw pump</title><description>The utility model discloses a reverse hydraulic damper of a screw pump and belongs to the technical field of oil field development. The reverse hydraulic damper of the screw pump comprises a hollow rotating shaft, bearings, piston cylinders, upper covers, lower covers, upper pressing blocks, lower pressing blocks, balls, supporting ring sleeves, pistons, large springs, cylindrical rollers, roller path bodies, check valve assemblies, reverse stop overrunning couplers and jaw clutches. According to the reverse hydraulic damper of the screw pump, due to the check overrunning couplers, the lower pressing blocks, the piston cylinders and the check valve assemblies, when a screw pump sucker rod is rotated reversely, the maximum reverse rotating speed of the sucker rod is limited, energy stored in the sucker rod is consumed at the same time, and the reverse hydraulic damper does not need to be operated by operators in a close range. In addition, hydraulic oil is packaged in the reverse hydraulic damper of the screw pump, a hydraulic station is not needed, and therefore frequent maintenance is not needed, safety and reliability are achieved, and the reverse hydraulic damper is easy to apply and popularize.</description><subject>BLASTING</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>MEANS FOR DAMPING VIBRATION</subject><subject>MECHANICAL ENGINEERING</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</subject><subject>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</subject><subject>SHOCK-ABSORBERS</subject><subject>SPRINGS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFALSi1LLSpOVcioTClKLM3JTFZIScwtSC1SyE9TKE4uSi1XKCjNLeBhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfHOfkYGJobmpqaWJqGhxkQpAgDFSihg</recordid><startdate>20150225</startdate><enddate>20150225</enddate><creator>YU KAIAN</creator><creator>WANG LIBIN</creator><creator>WANG SHULONG</creator><scope>EVB</scope></search><sort><creationdate>20150225</creationdate><title>Reverse hydraulic damper of screw pump</title><author>YU KAIAN ; WANG LIBIN ; WANG SHULONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN204175594UU3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>BLASTING</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>MEANS FOR DAMPING VIBRATION</topic><topic>MECHANICAL ENGINEERING</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS</topic><topic>ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS</topic><topic>SHOCK-ABSORBERS</topic><topic>SPRINGS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>YU KAIAN</creatorcontrib><creatorcontrib>WANG LIBIN</creatorcontrib><creatorcontrib>WANG SHULONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YU KAIAN</au><au>WANG LIBIN</au><au>WANG SHULONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Reverse hydraulic damper of screw pump</title><date>2015-02-25</date><risdate>2015</risdate><abstract>The utility model discloses a reverse hydraulic damper of a screw pump and belongs to the technical field of oil field development. The reverse hydraulic damper of the screw pump comprises a hollow rotating shaft, bearings, piston cylinders, upper covers, lower covers, upper pressing blocks, lower pressing blocks, balls, supporting ring sleeves, pistons, large springs, cylindrical rollers, roller path bodies, check valve assemblies, reverse stop overrunning couplers and jaw clutches. According to the reverse hydraulic damper of the screw pump, due to the check overrunning couplers, the lower pressing blocks, the piston cylinders and the check valve assemblies, when a screw pump sucker rod is rotated reversely, the maximum reverse rotating speed of the sucker rod is limited, energy stored in the sucker rod is consumed at the same time, and the reverse hydraulic damper does not need to be operated by operators in a close range. In addition, hydraulic oil is packaged in the reverse hydraulic damper of the screw pump, a hydraulic station is not needed, and therefore frequent maintenance is not needed, safety and reliability are achieved, and the reverse hydraulic damper is easy to apply and popularize.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS |
| title | Reverse hydraulic damper of screw pump |
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