New approach to maintaining liquid flow rate stability in national primary standard
New approach to maintaining liquid flow rate stability in primary standard calibration facility is proposed. It takes advantage of primary standards with constant static head and does not require high-altitude installation of the pressure tank. To implement the proposed approach, the pressure tank i...
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| Veröffentlicht in: | Flow measurement and instrumentation 2021-06, Vol.79, p.101930, Article 101930 |
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| container_title | Flow measurement and instrumentation |
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| creator | Mikheev, N.I. Molochnikov, V.M. Kratirov, D.V. Dushina, O.A. Paereliy, A.A. Tukhvatullin, A.R. |
| description | New approach to maintaining liquid flow rate stability in primary standard calibration facility is proposed. It takes advantage of primary standards with constant static head and does not require high-altitude installation of the pressure tank. To implement the proposed approach, the pressure tank is installed in the water pipeline of the Standard between the pumping station and the measurement pipeline. Pressure in the air cushion above the liquid in this tank is maintained automatically, as well as the liquid level in the pressure tank. It has been demonstrated that in order to stabilize the flow, it is sufficient to employ the controlling impacts in the form of air supply/withdrawal and adjustment of variable-frequency drives of pumps. The air is supplied and withdrawn from the air cushion by a set of critical flow nozzles, which are activated depending on the absolute pressure of air in the cushion. The liquid level in the tank is controlled by adjustment of variable-frequency drives of pumps based on the information on the hydrostatic head (liquid level) in the tank. Experimental study of the flow stabilization system of the National Primary Standard GET 63–2017 for mass and volume of liquid, mass and volumetric flow rates of liquid (Kazan, Russia) confirmed high efficiency of the proposed approach.
•New approach to flow rate stabilization in calibration standards was proposed.•Pressure tank with an air cushion above the liquid is included in the water pipeline.•Pressure in the air cushion and liquid level in the tank are maintained automatically.•Correlation between controlling variables and calibration parameters is described.•High efficiency of the proposed approach was confirmed experimentally. |
| doi_str_mv | 10.1016/j.flowmeasinst.2021.101930 |
| format | Article |
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•New approach to flow rate stabilization in calibration standards was proposed.•Pressure tank with an air cushion above the liquid is included in the water pipeline.•Pressure in the air cushion and liquid level in the tank are maintained automatically.•Correlation between controlling variables and calibration parameters is described.•High efficiency of the proposed approach was confirmed experimentally.</description><identifier>ISSN: 0955-5986</identifier><identifier>EISSN: 1873-6998</identifier><identifier>DOI: 10.1016/j.flowmeasinst.2021.101930</identifier><language>eng</language><publisher>OXFORD: Elsevier Ltd</publisher><subject>Absolute pressure ; Automatic control ; Engineering ; Engineering, Mechanical ; Flow stabilization ; Instruments & Instrumentation ; Liquid flow rate standard ; Liquid level ; Pressure tank ; Science & Technology ; Technology</subject><ispartof>Flow measurement and instrumentation, 2021-06, Vol.79, p.101930, Article 101930</ispartof><rights>2021 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>true</woscitedreferencessubscribed><woscitedreferencescount>1</woscitedreferencescount><woscitedreferencesoriginalsourcerecordid>wos000665475500020</woscitedreferencesoriginalsourcerecordid><citedby>FETCH-LOGICAL-c324t-c17a9c4803b358f76a7fa422742497739bba3856a11a55e671cf0effa972e5ab3</citedby><cites>FETCH-LOGICAL-c324t-c17a9c4803b358f76a7fa422742497739bba3856a11a55e671cf0effa972e5ab3</cites><orcidid>0000-0001-8182-6856 ; 0000-0001-7856-631X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.flowmeasinst.2021.101930$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,39263,46000</link.rule.ids></links><search><creatorcontrib>Mikheev, N.I.</creatorcontrib><creatorcontrib>Molochnikov, V.M.</creatorcontrib><creatorcontrib>Kratirov, D.V.</creatorcontrib><creatorcontrib>Dushina, O.A.</creatorcontrib><creatorcontrib>Paereliy, A.A.</creatorcontrib><creatorcontrib>Tukhvatullin, A.R.</creatorcontrib><title>New approach to maintaining liquid flow rate stability in national primary standard</title><title>Flow measurement and instrumentation</title><addtitle>FLOW MEAS INSTRUM</addtitle><description>New approach to maintaining liquid flow rate stability in primary standard calibration facility is proposed. It takes advantage of primary standards with constant static head and does not require high-altitude installation of the pressure tank. To implement the proposed approach, the pressure tank is installed in the water pipeline of the Standard between the pumping station and the measurement pipeline. Pressure in the air cushion above the liquid in this tank is maintained automatically, as well as the liquid level in the pressure tank. It has been demonstrated that in order to stabilize the flow, it is sufficient to employ the controlling impacts in the form of air supply/withdrawal and adjustment of variable-frequency drives of pumps. The air is supplied and withdrawn from the air cushion by a set of critical flow nozzles, which are activated depending on the absolute pressure of air in the cushion. The liquid level in the tank is controlled by adjustment of variable-frequency drives of pumps based on the information on the hydrostatic head (liquid level) in the tank. Experimental study of the flow stabilization system of the National Primary Standard GET 63–2017 for mass and volume of liquid, mass and volumetric flow rates of liquid (Kazan, Russia) confirmed high efficiency of the proposed approach.
•New approach to flow rate stabilization in calibration standards was proposed.•Pressure tank with an air cushion above the liquid is included in the water pipeline.•Pressure in the air cushion and liquid level in the tank are maintained automatically.•Correlation between controlling variables and calibration parameters is described.•High efficiency of the proposed approach was confirmed experimentally.</description><subject>Absolute pressure</subject><subject>Automatic control</subject><subject>Engineering</subject><subject>Engineering, Mechanical</subject><subject>Flow stabilization</subject><subject>Instruments & Instrumentation</subject><subject>Liquid flow rate standard</subject><subject>Liquid level</subject><subject>Pressure tank</subject><subject>Science & Technology</subject><subject>Technology</subject><issn>0955-5986</issn><issn>1873-6998</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>HGBXW</sourceid><recordid>eNqNkF1PwyAUhonRxDn9D8Rb0wm0lOKdmZ_JohfqNTmloCwdnYAu-_e2djFe7oJAcs5zzsuD0DklM0poebmc2bbbrAxE52OaMcLoUJA5OUATWok8K6WsDtGESM4zLqvyGJ3EuCSEVCQXE_TyZDYY1uvQgf7AqcMrcD71x_l33LrPL9fgYQUOkAyOCWrXurTFzmMPyXUeWrwObgVhO1R9A6E5RUcW2mjOdvcUvd3dvs4fssXz_eP8epHpnBUp01SA1EWfo855ZUUJwkLBmChYIYXIZV1DXvESKAXOTSmotsRYC1Iww6HOp-hqnKtDF2MwVu2SKErUoEct1X89atCjRj09XI3wxtSdjdoZr83fgN5PWfJCcN6_GJm79PvZefflU49e7I_23Tdjt-lVfDsT1I5oXDA6qaZz--T9Aa8ll6k</recordid><startdate>202106</startdate><enddate>202106</enddate><creator>Mikheev, N.I.</creator><creator>Molochnikov, V.M.</creator><creator>Kratirov, D.V.</creator><creator>Dushina, O.A.</creator><creator>Paereliy, A.A.</creator><creator>Tukhvatullin, A.R.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>BLEPL</scope><scope>DTL</scope><scope>HGBXW</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0001-8182-6856</orcidid><orcidid>https://orcid.org/0000-0001-7856-631X</orcidid></search><sort><creationdate>202106</creationdate><title>New approach to maintaining liquid flow rate stability in national primary standard</title><author>Mikheev, N.I. ; Molochnikov, V.M. ; Kratirov, D.V. ; Dushina, O.A. ; Paereliy, A.A. ; Tukhvatullin, A.R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c324t-c17a9c4803b358f76a7fa422742497739bba3856a11a55e671cf0effa972e5ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Absolute pressure</topic><topic>Automatic control</topic><topic>Engineering</topic><topic>Engineering, Mechanical</topic><topic>Flow stabilization</topic><topic>Instruments & Instrumentation</topic><topic>Liquid flow rate standard</topic><topic>Liquid level</topic><topic>Pressure tank</topic><topic>Science & Technology</topic><topic>Technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mikheev, N.I.</creatorcontrib><creatorcontrib>Molochnikov, V.M.</creatorcontrib><creatorcontrib>Kratirov, D.V.</creatorcontrib><creatorcontrib>Dushina, O.A.</creatorcontrib><creatorcontrib>Paereliy, A.A.</creatorcontrib><creatorcontrib>Tukhvatullin, A.R.</creatorcontrib><collection>Web of Science Core Collection</collection><collection>Science Citation Index Expanded</collection><collection>Web of Science - Science Citation Index Expanded - 2021</collection><collection>CrossRef</collection><jtitle>Flow measurement and instrumentation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mikheev, N.I.</au><au>Molochnikov, V.M.</au><au>Kratirov, D.V.</au><au>Dushina, O.A.</au><au>Paereliy, A.A.</au><au>Tukhvatullin, A.R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New approach to maintaining liquid flow rate stability in national primary standard</atitle><jtitle>Flow measurement and instrumentation</jtitle><stitle>FLOW MEAS INSTRUM</stitle><date>2021-06</date><risdate>2021</risdate><volume>79</volume><spage>101930</spage><pages>101930-</pages><artnum>101930</artnum><issn>0955-5986</issn><eissn>1873-6998</eissn><abstract>New approach to maintaining liquid flow rate stability in primary standard calibration facility is proposed. It takes advantage of primary standards with constant static head and does not require high-altitude installation of the pressure tank. To implement the proposed approach, the pressure tank is installed in the water pipeline of the Standard between the pumping station and the measurement pipeline. Pressure in the air cushion above the liquid in this tank is maintained automatically, as well as the liquid level in the pressure tank. It has been demonstrated that in order to stabilize the flow, it is sufficient to employ the controlling impacts in the form of air supply/withdrawal and adjustment of variable-frequency drives of pumps. The air is supplied and withdrawn from the air cushion by a set of critical flow nozzles, which are activated depending on the absolute pressure of air in the cushion. The liquid level in the tank is controlled by adjustment of variable-frequency drives of pumps based on the information on the hydrostatic head (liquid level) in the tank. Experimental study of the flow stabilization system of the National Primary Standard GET 63–2017 for mass and volume of liquid, mass and volumetric flow rates of liquid (Kazan, Russia) confirmed high efficiency of the proposed approach.
•New approach to flow rate stabilization in calibration standards was proposed.•Pressure tank with an air cushion above the liquid is included in the water pipeline.•Pressure in the air cushion and liquid level in the tank are maintained automatically.•Correlation between controlling variables and calibration parameters is described.•High efficiency of the proposed approach was confirmed experimentally.</abstract><cop>OXFORD</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.flowmeasinst.2021.101930</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0001-8182-6856</orcidid><orcidid>https://orcid.org/0000-0001-7856-631X</orcidid></addata></record> |
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| subjects | Absolute pressure Automatic control Engineering Engineering, Mechanical Flow stabilization Instruments & Instrumentation Liquid flow rate standard Liquid level Pressure tank Science & Technology Technology |
| title | New approach to maintaining liquid flow rate stability in national primary standard |
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