CN106194505A - A kind of adjustable air-fuel ratio blender for V-type gas compressor - Google Patents

A kind of adjustable air-fuel ratio blender for V-type gas compressor Download PDF

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Publication number
CN106194505A
CN106194505A CN201610875704.2A CN201610875704A CN106194505A CN 106194505 A CN106194505 A CN 106194505A CN 201610875704 A CN201610875704 A CN 201610875704A CN 106194505 A CN106194505 A CN 106194505A
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CN
China
Prior art keywords
blender
core
diverter
mixer case
bolt
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Granted
Application number
CN201610875704.2A
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Chinese (zh)
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CN106194505B (en
Inventor
任晓辉
郭志刚
彭阳
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Henan Diesel Engine Industry Co Ltd
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Henan Diesel Engine Industry Co Ltd
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Priority to CN201610875704.2A priority Critical patent/CN106194505B/en
Publication of CN106194505A publication Critical patent/CN106194505A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/04Gas-air mixing apparatus
    • F02M21/042Mixer comprising a plurality of bores or flow passages
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

Abstract

The invention belongs to natural gas in oil and gas fields and adopt defeated gas compressor technical field, be specifically related to a kind of can mechanical type adjust air-fuel ratio blender.Propose a kind of can adjust the blender of air-fuel ratio and has the mixer case (1) of tubular structure by mechanical type;Blender inner core it is provided with in the center cavity of mixer case;Blender inner core is made up of upper part blender inner core (2) and lower part blender inner core (10);Gap between upper part blender inner core (2) and lower part blender inner core (10) constitutes blast tube (11);Described lower part blender inner core (10) be provided centrally with diverter (3);Diverter (3) is fastened in lower part blender inner core (10) in the heart;Lower blender is additionally provided with bolt (5).The present invention should decrease existing air-fuel ratio regulation system substantial amounts of regulation parts such as gas consumption adjusting valve, pressure regulator valve etc., has the simple and effective feature of adjustment.

Description

A kind of adjustable air-fuel ratio blender for V-type gas compressor
Technical field
The invention belongs to natural gas in oil and gas fields and adopt defeated gas compressor technical field, being specifically related to one can adjust by mechanical type The blender of air-fuel ratio.
Background technology
The patent No. 201520000866.2 discloses a kind of shale gas V-type engine compression and adopts defeated machine and system, in this patent Described content is the machinery composition including power section and compression section;Wherein power section is that a kind of gaseous fuel starts Machine;This gaseous propellant engine uses fuel gas to do work as fuel, drives compression section to the shale gas in exploitation It is compressed efficiently to carry;Gaseous propellant engine combustion gas control and air-fuel ratio regulation system include blender, mixing The effect of device is that gaseous fuel and the air of the cleaning having in certain pressure and certain temperature range are mixed so that it is shape Uniformly it is available for the gaseous mixture of work by combustion, provides the fuel for acting for gaseous propellant engine.The gaseous mixture formed Middle air is referred to as air-fuel ratio with the ratio of combustion gas, and the size of air-fuel ratio and the uniformity of gaseous mixture will directly affect the point of spark plug Combustion position in fire and cylinder, and then affect the power of gaseous propellant engine, efficiency and discharge.
The blender being currently used for gaseous propellant engine has two kinds: venturi-type blender and diaphragm-type mixer; But both blenders all cannot utilize the adjusting air-fuel ratio that self structure is autonomous, venturi mixer and diaphragm-type mixer Before be required to increase gas flow adjusting means such as butterfly valve type gas flow valve and pressure regulator valve etc., what is more important is not in the face of Same source of the gas, when calorific value, gas concentration generation large change, all can there is bigger change in the air-fuel ratio regulation ability of these blenders Change, the phenomenons such as throttling, out of proportion, Venturi effect reduction occur.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of the present invention is to propose to a kind of can mechanical type adjust air-fuel ratio mixing Device.
Adopt the following technical scheme that for completing the above-mentioned purpose present invention
A kind of can mechanical type adjust air-fuel ratio blender, described blender has mixer case;Described blender shell Body is the tubular structure of both ends open;Blender inner core it is provided with in the center cavity of described mixer case;Described mixing Device inner core is made up of upper part blender inner core and lower part blender inner core;Described upper part blender inner core and lower part There is between blender inner core gap, and gap between the two constitutes blast tube;Described upper part blender inner core is By the hollow cone stage body in downward tapered footpath, the upper end of mixer case, and the upper end of upper part blender inner core and blender shell Body is formed in one;Between described upper part blender inner core and mixer case, there is gap;Described lower part mixing Device inner core is hollow cylinder, and has gap between lower part blender inner core and mixer case;Described lower part mixes The bottom of device inner core has outwardly annular boss;On the periphery of described annular boss, there is external screw thread;Lower part is mixed Clutch inner core is threadeded with described mixer case be integrated by described annular boss, and lower part blender inner core Can move up and down in mixer case, change the distance between upper part blender inner core, thus adjust blast tube Size;The bottom of lower part blender inner core center cavity is provided with three floors being uniformly distributed along the circumference;Article three, described floor One end is intersected in the center bottom lower part blender inner core center cavity;Between upper part blender inner core and mixer case The gap being had, the gap being had between lower part blender inner core and mixer case collectively form pressure stabilizing cavity;Described Space between upper part blender inner core and lower part blender inner core end face is the air duct of blender;Described bottom That divides blender inner core is provided centrally with diverter;Described diverter is bulb type structure;Described diverter passes through diverter Connector is fastened in lower part blender inner core in the heart;The upper end circular arc portion of described diverter divides in order to change air flow line Cloth so that it is in emitting shape in the combustion gas mixed uniformly gaseous mixture of mixed formation;Lower part is mixed by the described diverter of bulb type structure The center cavity of clutch inner core is divided into from top to bottom by expanding gaseous mixture runner;Described blender is additionally provided with in order to right Lower part blender inner core after adjustment carries out the bolt positioned;Have on the wall of described lower part blender inner core The hole, location joined is kissed with described bolt;Described hole, location is multilamellar setting up and down;On described mixer case There is the connecting hole passed in order to described bolt;Described connecting hole be one layer multiple, by making bolt pass Connecting hole on blender also coordinates with hole, corresponding one layer of multiple location on lower part blender inner core wall, it is achieved not The location of co-located lower part blender inner core.
Described diverter connector is metal cylinder hollow structure, and cylindrical has screw thread, joins with diverter end-face helical Closing, inner circle has the screw thread coordinated with fastening bolt;Described diverter connector is by fastening bolt and described lower part Blender inner core is fixed, so that diverter is fixed with described lower part blender inner core.
Described diverter is from top to bottom followed successively by arc section A, throat B and circular cone contraction section C.
The present invention propose a kind of can mechanical type adjust air-fuel ratio blender, use such scheme, have the effect that
1) only change diverter for different sources of the gas and adjust the position of blender end inner core (because it is connected to one with diverter Rising, diverter position is conditioned equally), it is possible to adjust air-fuel ratio;This can mechanical type adjust air-fuel ratio blender decrease Existing air-fuel ratio regulation system substantial amounts of regulation parts such as gas consumption adjusting valve, pressure regulator valve etc.;This can adjust air-fuel by mechanical type The blender of ratio is different from other venturi mixer and diaphragm-type mixer same structure may be only available for specific source of the gas Air and combustion gas mixing, this can mechanical type adjust air-fuel ratio blender be used in rubbish landfill gas, low concentration gas gas, height Have only to use bolt to adjust mixing during the different source of the gas such as concentration device in Gas, oil field gas, shale gas, conventional natural gas The position of device end inner core, adjusts simple effective;
2) diverter is engineering plastics, if using the threaded engagement of bolt and diverter end face frequently, can cause diverter The thread damage of end face, therefore devises diverter connector, and diverter connector is metal cylinder hollow structure, and cylindrical is spiral shell Stricture of vagina structure, coordinates with diverter end-face helical, and inner circle is all helicitic texture, but coordinates with fastening bolt;Bolt is half Helicitic texture, closing on bolt head is helicitic texture, can be fixed on mixer case by this helicitic texture, away from bolt The part of head is smooth rod-like structure, it is simply that coordinated with the aperture on blender end inner core by this smooth rod-like structure, adjusts The position of whole blender end inner core;Sealing bolt, sealing ring and mounting gasket are standard component, play and connect the effect sealed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the upward view of Fig. 1.
In figure: 1, mixer case, 2, upper part blender inner core, 3, diverter, 4, diverter connector, 5, location spiral shell Bolt, 6, sealing bolt, 7, sealing ring, 8, fastening bolt, 9, mounting gasket, 10, lower part blender inner core, 11, blast tube, 12, pressure stabilizing cavity, 13, arc section A, 14, throat B, 15, circular cone contraction section C.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the present invention is illustrated.
As shown in Figure 1 and Figure 2, a kind of can mechanical type adjust air-fuel ratio blender, described blender has blender shell Body 1;Described mixer case 1 is manufactured by cast aluminium alloy;Described mixer case 1 is the tubular structure of both ends open;Institute Blender inner core it is provided with in stating the center cavity of mixer case;Described blender inner core is by upper part blender inner core 2 Constitute with lower part blender inner core 10;Have between described upper part blender inner core 2 and lower part blender inner core 10 Gap, and gap composition blast tube 11 between the two;Described upper part blender inner core 2 is by mixer case 1 The hollow cone stage body in downward tapered footpath, upper end, and the upper end of upper part blender inner core 2 is integrated into mixer case 1 Type;Between described upper part blender inner core 2 and mixer case 1, there is gap;Described lower part blender inner core 10 For there is gap between hollow cylinder, and lower part blender inner core 10 and mixer case 1;In described lower part blender The bottom of core 10 has outwardly annular boss;On the periphery of described annular boss, there is external screw thread;Lower part mixes Device inner core 10 is threadeded with described mixer case 1 by described annular boss and is integrated, and in lower part blender Core 10 can move up and down in mixer case 1, changes the distance between upper part blender inner core 2, thus adjusts combustion gas The size of passage;The bottom of lower part blender inner core 10 center cavity is provided with three floors being uniformly distributed along the circumference;Article three, institute The one end stating floor is intersected in the center bottom lower part blender inner core center cavity;Upper part blender inner core 2 with mix The gap being had between device housing 1, the common structure in gap being had between lower part blender inner core 10 and mixer case 1 Become pressure stabilizing cavity 12;Space between described upper part blender inner core 2 and lower part blender inner core 10 end face is blender Air duct;Described lower part blender inner core be provided centrally with diverter 3;Described diverter 3 is bulb type structure; Described diverter 3 is fastened in lower part blender inner core 10 in the heart by diverter connector 4;The upper end of described diverter 3 Circular arc portion is in order to change air flow line distribution so that it is in emitting shape in the combustion gas mixed uniformly gaseous mixture of mixed formation;Bulb type The center cavity of lower part blender inner core is divided into from top to bottom by expanding gaseous mixture runner by the described diverter of structure; Described blender is additionally provided with the bolt 5 in order to position the lower part blender inner core after adjusting;Described Have on the wall of lower part blender inner core and kiss, with described bolt 5, the hole, location joined;Described hole, location is upper and lower The multilamellar arranged;On described mixer case 1, there is the connecting hole passed in order to described bolt;Described connecting hole Be one layer multiple, by make connecting hole that bolt passes on blender and with phase on lower part blender inner core 10 wall The hole, one layer of multiple location answered coordinates, it is achieved in the location of diverse location lower part blender inner core 10.
Described diverter connector 4 is metal cylinder hollow structure, and cylindrical has screw thread, joins with diverter end-face helical Closing, inner circle has the screw thread coordinated with fastening bolt;Described diverter connector 4 is by fastening bolt and described lower part Blender inner core 10 is fixed, so that diverter 3 is fixed with described lower part blender inner core 10.
Described diverter 3, by the solid construction of engineering plastics injection mo(u)lding, is from top to bottom followed successively by arc section A13, larynx Portion B14 and circular cone contraction section C15;The ground of circular cone contraction section C15 is plane, and being perpendicular to plane machining has screwed hole;Because Diverter 3 is engineering plastics, if using the threaded engagement of bolt and diverter 3 end face frequently, can cause diverter 3 end face Thread damage, therefore devise diverter connector 4, diverter connector 4 is metal cylinder hollow structure, and cylindrical is screw thread Structure, coordinates with diverter 3 end-face helical, and inner circle is all helicitic texture, but coordinates with fastening bolt;Fastening bolt 8 is for dividing The counterpart of stream device connector 4 inner circle bolt, for plain bolt.Bolt 5 is half-thread structure, and closing on bolt head is spiral shell Stricture of vagina structure, can be fixed on mixer case 1 by this helicitic texture, and the part away from bolt head is smooth shaft-like knot Structure, it is simply that coordinated with the aperture on blender end inner core by this smooth rod-like structure, adjusts the position of blender end inner core 2. Sealing bolt 6, sealing ring 7 and mounting gasket 9 are standard component, play and connect the effect sealed.
The present invention uses front assembling process: linked together with diverter connector 4 by diverter 3, the group that will connect Part is arranged on blender inner core 2 by fastening bolt 8 and mounting gasket 9, and assembly now is installed to mixer case 1 On, the unthreaded hole on blender end inner core 2 is cast lug with certain on mixer case 1 according to the attribute of actual source of the gas by position Screwed hole alignment, install bolt 5, on the Castingother lug on mixer case 1 install sealing bolt 6 and seal Circle 7.
Use and of the present invention can adjust the blender of air-fuel ratio by mechanical type, met different gas by method used below Source, the air-fuel ratio regulation of operating mode:
Adjust bolt 5 and position the cooperation in hole from different lower part blender end inner cores 10, thus adjust lower part mixing The position of device end inner core 1, changes the size of gas circulation passage;The position of diverter 3 also can be with lower part blender end simultaneously Inner core 1 changes together, thus affects the throat B relative position in mixer case 1;When " blast tube " becomes big, throat B Gradually draw close to " blast tube " place;Combustion gas the least for gas concentration, that gaseous-pressure is the lowest, calorific value is the fewest, blender end The distance of inner core 2 should center away from mixer case 1 the most remote, form bigger " blast tube ", throat B is the closer to " combustion gas is led to Road ";The combustion gas big vice versa for gas concentration, gaseous-pressure is the highest, calorific value is big, should reduce lower part blender end inner core 1 away from The distance at mixer case 1 center, forms less " blast tube ", and throat B is further away from " blast tube ".

Claims (3)

1. one kind can mechanical type adjust air-fuel ratio blender, it is characterised in that: described blender has mixer case (1);Described mixer case (1) is the tubular structure of both ends open;It is provided with in the center cavity of described mixer case Blender inner core;Described blender inner core is made up of upper part blender inner core (2) and lower part blender inner core (10);Institute Between upper part blender inner core (2) and lower part blender inner core (10) stated, there is gap, and gap structure between the two Become blast tube (11);Described upper part blender inner core (2) is the sky in downward tapered footpath, the upper end by mixer case (1) Heart circular cone stage body, and the upper end of upper part blender inner core is formed in one with mixer case;Described upper part blender Between inner core (2) and mixer case (1), there is gap;Described lower part blender inner core (10) is hollow cylinder, and Between lower part blender inner core (10) and mixer case (1), there is gap;The end of described lower part blender inner core (10) Portion has outwardly annular boss;On the periphery of described annular boss, there is external screw thread;Lower part blender inner core (10) threaded with described mixer case (1) be integrated by described annular boss, and lower part blender inner core (10) can move up and down in mixer case (1), change the distance between upper part blender inner core (2), thus adjust The size of blast tube;The bottom of lower part blender inner core (10) center cavity is provided with three floors being uniformly distributed along the circumference; Article three, one end of described floor is intersected in the center bottom lower part blender inner core center cavity;Upper part blender inner core (2) institute and between the gap, lower part blender inner core (10) and the mixer case (1) that are had between mixer case (1) The gap having collectively forms pressure stabilizing cavity (12);Described upper part blender inner core (2) and lower part blender inner core (10) end Space between face is the air duct of blender;Described lower part blender inner core (10) be provided centrally with diverter (3);Described diverter (3) is bulb type structure;Described diverter (3) is fastened on lower part by diverter connector (4) In blender inner core (10) in the heart;The upper end circular arc portion of described diverter (3) is in order to change air flow line distribution so that it is in sending out Penetrate shape in the combustion gas mixed uniformly gaseous mixture of mixed formation;The described diverter of bulb type structure is by lower part blender inner core Heart cavity is divided into from top to bottom by expanding gaseous mixture runner;Described blender is additionally provided with in order to the bottom after adjusting Blender inner core is divided to carry out the bolt (5) positioned;Have with described on the wall of described lower part blender inner core The hole, location joined kissed by bolt (5);Described hole, location is multilamellar setting up and down;On described mixer case, there is use The connecting hole passed with described bolt;Described connecting hole be one layer multiple, by making bolt pass blender On connecting hole and coordinate with hole, corresponding one layer of multiple location on lower part blender inner core wall, it is achieved at diverse location The location of lower part blender inner core.
A kind of can mechanical type adjust air-fuel ratio blender, it is characterised in that: described diverter Connector (4) is metal cylinder hollow structure, and cylindrical has screw thread, coordinates with diverter end-face helical, and inner circle has and fastening The screw thread that bolt coordinates;Described diverter connector is fixed with described lower part blender inner core by fastening bolt, from And make diverter fix with described lower part blender inner core.
A kind of can mechanical type adjust air-fuel ratio blender, it is characterised in that: described diverter (3) be from top to bottom followed successively by arc section A(13), throat B(14) and circular cone contraction section C(15).
CN201610875704.2A 2016-10-08 2016-10-08 A kind of adjustable air-fuel ratio mixer for V-type gas compressor Active CN106194505B (en)

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CN106194505B CN106194505B (en) 2018-08-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110748440A (en) * 2018-07-23 2020-02-04 重庆科克发动机技术有限公司 Mixer with adjustable air-fuel ratio

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070851A (en) * 1990-06-22 1991-12-10 Briggs & Stratton Corp. Air fuel mixing device for producer gas
US5427151A (en) * 1994-05-18 1995-06-27 Simpson Cleaning Systems, Inc. Pressure regulating chemical injector valve
CN201443762U (en) * 2009-06-24 2010-04-28 樊金鑫 Flame adjusting rotational flow gas-fired combustor
CN104075326A (en) * 2014-05-26 2014-10-01 大连渤尔科技有限公司 Venturi gas mixer
CN206158885U (en) * 2016-10-08 2017-05-10 河南柴油机重工有限责任公司 A adjustable air -fuel ratio blender for V type gas compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070851A (en) * 1990-06-22 1991-12-10 Briggs & Stratton Corp. Air fuel mixing device for producer gas
US5427151A (en) * 1994-05-18 1995-06-27 Simpson Cleaning Systems, Inc. Pressure regulating chemical injector valve
CN201443762U (en) * 2009-06-24 2010-04-28 樊金鑫 Flame adjusting rotational flow gas-fired combustor
CN104075326A (en) * 2014-05-26 2014-10-01 大连渤尔科技有限公司 Venturi gas mixer
CN206158885U (en) * 2016-10-08 2017-05-10 河南柴油机重工有限责任公司 A adjustable air -fuel ratio blender for V type gas compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110748440A (en) * 2018-07-23 2020-02-04 重庆科克发动机技术有限公司 Mixer with adjustable air-fuel ratio

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