CN2348096Y - Liquid carbon dioxide injection device - Google Patents
Liquid carbon dioxide injection device Download PDFInfo
- Publication number
- CN2348096Y CN2348096Y CN 98204169 CN98204169U CN2348096Y CN 2348096 Y CN2348096 Y CN 2348096Y CN 98204169 CN98204169 CN 98204169 CN 98204169 U CN98204169 U CN 98204169U CN 2348096 Y CN2348096 Y CN 2348096Y
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- CN
- China
- Prior art keywords
- valve
- pump
- carbon dioxide
- feed liquor
- liquid carbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a liquid carbon dioxide injection device, which is composed of a liquid carbon dioxide injection pump and an assorted process. A liquid inlet valve core, a spring, and a liquid inlet valve seat of the injection pump form a pull rod type liquid inlet valve. The liquid outlet valve cavity of the pump body is provided with a sealing pad, a liquid outlet valve seat, a liquid outlet valve core, a liquid outlet valve sleeve, a limited block and a flange. The lower end of the spring of the liquid outlet valve of the pump is arranged on the liquid outlet valve core, and the upper end is sheathed on the limited block. The higher part of the liquid inlet valve cavity is provided with a gas outlet cork, and a valve stem, and a sealing box is fixed to the pump body by studs and nuts. A seal ring is arranged between a plunger piston and the cavity. The plunger piston and the connecting rod have a flexible joint with the help of a spherical pad, a pressing nut and a split body. The utility model optimizes the structure of the fluid end of the injection pump, reduces useless volume in the pump cavity, increases the utilization ratio of active volume, and solves the problem of air lock.
Description
The utility model relates to a kind of liquid carbon dioxide injection device, is applicable to the activities of oil field fluid injection attitude carbon dioxide, can guarantee effectively that liquid carbon dioxide is boosted under stable fluidised form and phase.
At present, in fluid injection attitude carbon dioxide oil production technology, effectively injecting liquid carbon dioxide how safely, is key problem, be subjected to the influence of the particularity of liquid carbon dioxide physical characteristic and fluid injection attitude carbon dioxide oil production technology, traditional liquid medium injection pump (water injecting pump of using as oil-field flooding) can't operate as normal.Immerse mainly due to high-pressure carbon dioxide, influence the sealing performance of conventional seals material; The easy endothermic gasification of liquid carbon dioxide, compression coefficient is big when mesohigh, strong gasification trend and compressibility are all higher to the requirement of the indexs such as clearance volume of the sealing of injection pump valve and greasy property, pump chamber, if use traditional injection pump with regard to causing carbon dioxide gasification easily gas lock; Plunger some merit at work will consume on compression arbon dioxide.Owing to lack the technological process that a cover guarantees the pump operate as normal, make pump not run well simultaneously.
The purpose of this utility model is to provide a kind of special-purpose injection device that adapts to the liquid carbon dioxide characteristic, to reach the purpose that improves pump efficiency and system effectiveness.
The purpose of this utility model is achieved in that the liquid carbon dioxide injection device is made up of liquid carbon dioxide injection pump and supporting flow process two parts, in the feed liquor valve pocket of injection pump part, by the feed liquor spool, spring and feed liquor valve seat are formed rod-pulling type feed liquor valve, be provided with sealing mat between the feed liquor valve seat and the pump housing, and gland in the middle of being provided with successively, sealing mat, flange is fixed on flange on the pump housing with double-screw bolt and nut; In pump housing discharge opeing valve pocket, be provided with sealing mat successively, discharge opeing valve seat, discharge opeing spool, discharge opeing valve pocket, sealing mat, limited block and flange; In the tapping valve part of pump, tapping valve spring lower end is located on the tapping valve spool, and the upper end is enclosed within on the limited block, by double-screw bolt and nut flange is fixed on the pump housing; Be provided with air relief cock, valve rod in feed liquor valve pocket high-order bit, by double-screw bolt, nut is fixed on sealed letter on the pump housing, and the pump housing between be provided with sealing mat, in sealed letter, be provided with copper sheathing successively, plunger is provided with sealing ring between plunger and cavity; Be flexible coupling by ball ring, clamp nut, subdivision body between plunger and the connecting rod; Supporting flow process part is connected by inlet line successively feeds liquid pump and bypass, connects eliminator, connects flow meter and bypass; Inject delivery side of pump and divide two-way, the one tunnel links to each other with ball-and-seat, exports with flow process to link to each other again; Another road joins by return valve and current divider, and is connected by valve.
The utlity model has following advantage: the utility model has been optimized injection pump fluid end structure, has reduced the useless volume in the pump chamber, and has improved dischargeable capacity, and improved the dischargeable capacity utilization rate.Change encapsulant and sealing means, prolonged the seal replacement cycle, strengthened sealing effectiveness.In the pump work process, in time solve the gas lock problem by the needle valve venting.Change the pump work system, the power consumption of compressed liquid carbon dioxide when reducing plunger work.Supporting flow process part provides air bubble content low carbon dioxide by feeding liquid pump and eliminator for injection pump.Simple and convenient operation flow, and because the existence of ball-and-seat has improved the safety factor of flow process.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the utility model injection pump structural representation;
Fig. 2 is the supporting schematic flow sheet of the utility model.
Among the figure: the 1-connecting rod, the 2-ball ring, the 3-clamp nut, 4-subdivision body, the 5-plunger, the 6-sealed letter, the 7-sealing mat, the 9-nut, the 10-pump housing, the 11-double-screw bolt, the 12-nut, the 13-flange, the 15-tapping valve, the 16-limited block, the 17-sealing mat, 18-discharge opeing valve pocket, 19-discharge opeing spool, 20-discharge opeing valve seat, the 21-double-screw bolt, the 22-air relief cock, the 23-valve rod, 24 feed liquor valve seats, 24a-feed liquor spool, the 24b-spring, gland in the middle of the 25-, the 26-flange, the 27-inlet line, the 28-valve, 29-feeds liquid pump, the 30-bypass, the 31-valve, the 32-valve, the 33-eliminator, 34 valves, the 35-valve, the 36-evacuation port, the 37-bypass, the 38-flow meter, the 38a-valve, the 39-valve, the 40-copper sheathing, 41 injection pumps, the 42-ball-and-seat, the outlet of 43-flow process.
The utility model is made up of liquid carbon dioxide injection pump and supporting flow process two parts, the injection pump part is formed rod-pulling type feed liquor valve by feed liquor spool 24a, spring 24b and feed liquor valve seat 24, in the feed liquor valve pocket, be provided with sealing mat 17 between the feed liquor valve seat 24 and the pump housing 10, and gland 25 in the middle of being provided with successively, sealing mat 17, flange 26 is fixed on flange 13 on the pump housing with double-screw bolt 11 and nut 12; In pump housing discharge opeing valve pocket, be provided with sealing mat 17 successively, discharge opeing valve seat 20, discharge opeing spool 19, discharge opeing valve pocket 18, sealing mat 17, limited block 16 and flange 13; In the tapping valve part of pump, tapping valve spring 15 lower ends are located on the tapping valve spool, and the upper end is enclosed within on the limited block 16, by double-screw bolt 11 and nut 12 flange 13 are fixed on the pump housing; Be provided with air relief cock 22, valve rod 23 in feed liquor valve pocket high-order bit, by double-screw bolt 21, nut 9 is fixed on sealed letter 6 on the pump housing, and the pump housing 10 between be provided with sealing mat 7, in sealed letter 6, be provided with copper sheathing 40, plunger 5 successively; Between plunger 5 and cavity 10, be provided with sealing ring; Be flexible coupling by ball ring 2, clamp nut 3, subdivision body 4 between plunger 5 and the connecting rod 1; Supporting flow process part is connected by inlet line 27 successively feeds liquid pump 29 and bypass 30, connects eliminator 33, connects flow meter 38 and bypass 37; The outlet of injection pump 41 divides two-way, and one the tunnel links to each other with ball-and-seat 42, links to each other with flow process outlet 43 again; Another road joins by return valve 39,32 and current divider 33, and is connected by valve 9.Become 90 degree at the feed liquor valve of injection pump part correspondence and the axis of tapping valve.Form ＂ L ＂ shape pump head.Injection pump part tapping valve is that embedding is moulded or polyamine fat material taper valve core, and the feed liquor valve is the rod-pulling type spool.The injection pump part replaces General Purpose Rubber as encapsulant by the high density nitrile, adopts the sealing of end face triangle to replace original ＂ O ＂ shape sealing.
The injection pump part: after liquid carbon dioxide enters injection pump, rely on self pressure to open feed liquor valve and tapping valve, be full of the flow process behind pump chamber and the pump discharge, it is reciprocating along plunger cavity that injection pump starts back-plunger 5.When plunger withdraws from pump chamber when motion, cavity internal pressure descends, and feed liquor opening of valves, carbon dioxide enter and be full of plunger cavity.When plunger entered the pump chamber motion, the feed liquor valve cut out, and tapping valve is opened, and the carbon dioxide in the plunger cavity is discharged from exhaust chamber and boosted.Have the gas lock phenomenon can pass through air relief cock 22 as finding in injection process, valve rod 23 is exitted.
Supporting flow process part: enter flow process when opening related valve by liquid carbon dioxide, air is ejected from the eliminator top by valve 34.Close the bypath valve 30 of feeding liquid pump 29 then, start and feed liquid pump 29, by reflux process circulation cooled injection pump 41, drop a hint from eliminator 33 tops in the gap simultaneously.Start injection pump 41.Treat slowly valve-off 39 of the normal back of pump work.Ball-and-seat 42 can stop the high-pressure carbon dioxide in its downstream flow process to blow back into low-pressure system when injection pump 41 terminations of pumping.
Claims (4)
1. liquid carbon dioxide injection device, form by liquid carbon dioxide injection pump and supporting flow process two parts, it is characterized in that injection pump part forms rod-pulling type feed liquor valve by feed liquor spool (24a), spring (24b) with feed liquor valve seat (24), in the feed liquor valve pocket, be provided with sealing mat (17) between the feed liquor valve seat (24) and the pump housing (10), and gland (25) in the middle of being provided with successively, sealing mat (17), flange (26) is fixed on flange (13) on the pump housing with double-screw bolt (11) and nut (12); In pump housing discharge opeing valve pocket, be provided with sealing mat (17) successively, discharge opeing valve seat (20), discharge opeing spool (19), discharge opeing valve pocket (18), sealing mat (17), limited block (16) and flange (13); In the tapping valve part of pump, tapping valve spring (15) lower end is located on the tapping valve spool, and the upper end is enclosed within on the limited block (16), by double-screw bolt (11) and nut (12) flange (13) is fixed on the pump housing; Be provided with air relief cock (22), valve rod (23) in feed liquor valve pocket high-order bit, by double-screw bolt (21), nut (9) is fixed on sealed letter (6) on the pump housing, and the pump housing (10) between be provided with sealing mat (7), in sealed letter (6), be provided with copper sheathing (40), plunger (5) successively; Between plunger (5) and cavity (10), be provided with sealing ring; Be flexible coupling by ball ring (2), clamp nut (3), subdivision body (4) between plunger (5) and the connecting rod (1); Supporting flow process part is connected by inlet line (27) successively feeds liquid pump (29) and bypass (30), connects eliminator (33), connects flow meter (38) and bypass (37); The outlet of injection pump (41) divides two-way, and one the tunnel links to each other with ball-and-seat (42), links to each other with flow process outlet (43) again; Another road joins with current divider (33), and is connected by valve (9) by return valve (39), (32).
2. according to the described liquid carbon dioxide injection device of claim 1, it is characterized in that the feed liquor valve of injection pump part correspondence and the axis of tapping valve become 90 degree, form ＂ L ＂ shape pump head.
3. according to the described liquid carbon dioxide injection device of claim 1, it is characterized in that injection pump part tapping valve is that embedding is moulded or the taper valve core of polyamine fat material, the feed liquor valve is the rod-pulling type spool.
4. according to the described liquid carbon dioxide injection device of claim 1, it is characterized in that the injection pump part replaces General Purpose Rubber as encapsulant by the high density nitrile, adopt the sealing of end face triangle to replace original ＂ O ＂ shape sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204169 CN2348096Y (en) | 1998-05-06 | 1998-05-06 | Liquid carbon dioxide injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204169 CN2348096Y (en) | 1998-05-06 | 1998-05-06 | Liquid carbon dioxide injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2348096Y true CN2348096Y (en) | 1999-11-10 |
Family
ID=33960834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204169 Expired - Fee Related CN2348096Y (en) | 1998-05-06 | 1998-05-06 | Liquid carbon dioxide injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2348096Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011570A (en) * | 2010-09-28 | 2011-04-13 | 中国石油化工股份有限公司华东分公司采油厂 | Process method for CO2 molded ground |
| CN101489929B (en) * | 2006-07-10 | 2012-01-18 | 乔治洛德方法研究和开发液化空气有限公司 | Cryogenic fluid injection system for processing products in bulk and method of cooling implementing said system |
| CN103437994A (en) * | 2013-08-23 | 2013-12-11 | 西安航天动力研究所 | High-volume-efficiency combined-type pump valve of reciprocating pump |
| CN103470492A (en) * | 2013-10-11 | 2013-12-25 | 湖州三井低温设备有限公司 | Liquid inlet structure for low-temperature and high-pressure reciprocation pump |
| CN104595180A (en) * | 2014-12-30 | 2015-05-06 | 宁波锦球机械有限公司 | Fluid end component of water injection pump |
| CN107387387A (en) * | 2017-08-30 | 2017-11-24 | 王湫锂 | Low pressure transfiguration flow rate adjusting method and its governor motion for adjustable-flow injection pump |
-
1998
- 1998-05-06 CN CN 98204169 patent/CN2348096Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489929B (en) * | 2006-07-10 | 2012-01-18 | 乔治洛德方法研究和开发液化空气有限公司 | Cryogenic fluid injection system for processing products in bulk and method of cooling implementing said system |
| EP2041026B2 (en) † | 2006-07-10 | 2024-04-24 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Cryogenic fluid injection system for processing products in bulk and method of cooling implementing said system |
| CN102011570A (en) * | 2010-09-28 | 2011-04-13 | 中国石油化工股份有限公司华东分公司采油厂 | Process method for CO2 molded ground |
| CN102011570B (en) * | 2010-09-28 | 2013-05-29 | 中国石油化工股份有限公司华东分公司采油厂 | Process method for CO2 molded ground |
| CN103437994A (en) * | 2013-08-23 | 2013-12-11 | 西安航天动力研究所 | High-volume-efficiency combined-type pump valve of reciprocating pump |
| CN103437994B (en) * | 2013-08-23 | 2016-05-18 | 西安航天动力研究所 | A kind of high volumetric efficiency reciprocating pump combined type pump valve |
| CN103470492A (en) * | 2013-10-11 | 2013-12-25 | 湖州三井低温设备有限公司 | Liquid inlet structure for low-temperature and high-pressure reciprocation pump |
| CN104595180A (en) * | 2014-12-30 | 2015-05-06 | 宁波锦球机械有限公司 | Fluid end component of water injection pump |
| CN107387387A (en) * | 2017-08-30 | 2017-11-24 | 王湫锂 | Low pressure transfiguration flow rate adjusting method and its governor motion for adjustable-flow injection pump |
| CN107387387B (en) * | 2017-08-30 | 2020-01-14 | 王湫锂 | Low-pressure variable-volume flow adjusting method and adjusting mechanism for flow-adjusting injection pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |