Method for preventing scrap iron from backflushing in pressurized tapping new pipe connecting process of gas high-pressure pipeline
The invention discloses a method for preventing scrap iron from backflushing in a pressurized tapping new pipe connecting process of a gas high-pressure pipeline. The method comprises the following steps that step 1, parts are installed, specifically, a holding pipe of a tapping part is connected wi...
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| creator | WU SHISHENG ZHANG LEZHEN WANG ZHIXIAO ZHANG FAN |
| description | The invention discloses a method for preventing scrap iron from backflushing in a pressurized tapping new pipe connecting process of a gas high-pressure pipeline. The method comprises the following steps that step 1, parts are installed, specifically, a holding pipe of a tapping part is connected with a mother pipe, and a branch pipe of the tapping part is connected with a new pipe; step 2, part and new pipe pressure test is carried out, specifically, the fluctuation range of the operating pressure of the mother pipe is observed, and the maximum operating pressure of the mother pipe at the gas consumption peak is obtained according to the observation; step 3, a sandwich valve is installed, specifically, a blind plate is disassembled and the sandwich valve is installed; step 4, a tapping machine is installed; and step 5, the new pipe rises to the running pressure of the mother pipe. According to the method for preventing the scrap iron from backflushing in the pressurized tapping new pipe connecting process of |
| format | Patent |
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The method comprises the following steps that step 1, parts are installed, specifically, a holding pipe of a tapping part is connected with a mother pipe, and a branch pipe of the tapping part is connected with a new pipe; step 2, part and new pipe pressure test is carried out, specifically, the fluctuation range of the operating pressure of the mother pipe is observed, and the maximum operating pressure of the mother pipe at the gas consumption peak is obtained according to the observation; step 3, a sandwich valve is installed, specifically, a blind plate is disassembled and the sandwich valve is installed; step 4, a tapping machine is installed; and step 5, the new pipe rises to the running pressure of the mother pipe. According to the method for preventing the scrap iron from backflushing in the pressurized tapping new pipe connecting process of</description><language>chi ; eng</language><subject>BLASTING ; BORING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; JOINTS OR FITTINGS FOR PIPES ; LIGHTING ; MACHINE TOOLS ; MEANS FOR THERMAL INSULATION IN GENERAL ; MECHANICAL ENGINEERING ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; PIPES ; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING ; THERMAL INSULATION IN GENERAL ; TRANSPORTING ; TURNING ; WEAPONS</subject><creationdate>2021</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=20210409&DB=EPODOC&CC=CN&NR=112628509A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210409&DB=EPODOC&CC=CN&NR=112628509A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WU SHISHENG</creatorcontrib><creatorcontrib>ZHANG LEZHEN</creatorcontrib><creatorcontrib>WANG ZHIXIAO</creatorcontrib><creatorcontrib>ZHANG FAN</creatorcontrib><title>Method for preventing scrap iron from backflushing in pressurized tapping new pipe connecting process of gas high-pressure pipeline</title><description>The invention discloses a method for preventing scrap iron from backflushing in a pressurized tapping new pipe connecting process of a gas high-pressure pipeline. The method comprises the following steps that step 1, parts are installed, specifically, a holding pipe of a tapping part is connected with a mother pipe, and a branch pipe of the tapping part is connected with a new pipe; step 2, part and new pipe pressure test is carried out, specifically, the fluctuation range of the operating pressure of the mother pipe is observed, and the maximum operating pressure of the mother pipe at the gas consumption peak is obtained according to the observation; step 3, a sandwich valve is installed, specifically, a blind plate is disassembled and the sandwich valve is installed; step 4, a tapping machine is installed; and step 5, the new pipe rises to the running pressure of the mother pipe. 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The method comprises the following steps that step 1, parts are installed, specifically, a holding pipe of a tapping part is connected with a mother pipe, and a branch pipe of the tapping part is connected with a new pipe; step 2, part and new pipe pressure test is carried out, specifically, the fluctuation range of the operating pressure of the mother pipe is observed, and the maximum operating pressure of the mother pipe at the gas consumption peak is obtained according to the observation; step 3, a sandwich valve is installed, specifically, a blind plate is disassembled and the sandwich valve is installed; step 4, a tapping machine is installed; and step 5, the new pipe rises to the running pressure of the mother pipe. According to the method for preventing the scrap iron from backflushing in the pressurized tapping new pipe connecting process of</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | BLASTING BORING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MACHINE TOOLS MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING TURNING WEAPONS |
| title | Method for preventing scrap iron from backflushing in pressurized tapping new pipe connecting process of gas high-pressure pipeline |
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