CN108678844A - Engine SCR aftertreatment system for petroleum well servicing rig - Google Patents
Engine SCR aftertreatment system for petroleum well servicing rig Download PDFInfo
- Publication number
- CN108678844A CN108678844A CN201810770661.0A CN201810770661A CN108678844A CN 108678844 A CN108678844 A CN 108678844A CN 201810770661 A CN201810770661 A CN 201810770661A CN 108678844 A CN108678844 A CN 108678844A
- Authority
- CN
- China
- Prior art keywords
- speed changer
- engine
- hood
- egp
- babinets
- 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.)
- Granted
Links
- 239000003208 petroleum Substances 0.000 title claims abstract description 17
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000004202 carbamide Substances 0.000 claims abstract description 62
- 239000000945 filler Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geology (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of engine SCR aftertreatment systems for petroleum well servicing rig, including：Engine, EGP babinets, urea tank, urea pump, speed changer and hood；The exhaust outlet of engine is arranged with the air inlet face of EGP babinets and is connected by main exhaust, speed changer is that associated mode is coupled with engine, EGP babinets are arranged in parallel in the top of speed changer with urea tank on same level direction, and urea pump is integrated in urea tank；Hood is divided into engine section hood and speed changer section hood, and engine section hood is covered at speed changer section hood above engine and speed changer respectively.Technical solution through the invention, the connection trend for optimizing pipeline, improves the mounting process and reliability of system, improves the protective that total system damages external disturbance, and it is effectively utilized vacant arrangement space, has saved the maintenance operation space of host and upper dress arrangement space.
Description
Technical field
The present invention relates to special vehicle technical field more particularly to a kind of engine SCR for petroleum well servicing rig
(Selective Catalytic Reduction, selective catalytic reduction) after-treatment system.
Background technology
SCR exhaust gas aftertreatment techniques are the mainstream technology routes that diesel engine producer realizes emission compliance, by taking comings as an example,
The main composition of SCR aftertreatment system includes：Urea tank, urea pump (being integrated in urea tank), EGP babinets (containing muffler)
(EGP, four exhaust gas treating device element of diesel oil electric-controlled co-rail state, that is, the silencer with catalyst converter), sensor and circuit, urea
Injection line, coolant liquid pipeline and power source (engine of gas or electricity, different manufacturers is different, and comings are pneumatic).
Above-mentioned after-treatment system belongs to the integrated loose mail state in part from the manufacture supply of material state of diesel engine producer, needs vapour
Man of depot is arranged design, and completes the production and installation of associated pipe, electric wire, and should meet the requirement of its technology and specification,
To ensure that after-treatment system continues reliably to work normally.
Auto vendor needs to arrange that the big part material object unit of after-treatment system with assembling includes mainly：EGP babinets (contain noise reduction
Device), urea tank, urea pump (majority be integrated in urea tank and bracket assembly), remaining smallclothes unit is：Sensor, wirning harness,
Urea pipe, coolant liquid pipeline, gas circuit, fixing bracket, connector and plug connector etc., the type and quantity of smallclothes unit are more huge
It is miscellaneous, have tens of to 100 (depending on arrangement form and diesel engine producer and model).
Engine exhaust port is usually in side of cylinder block, and backwards, the SCR post-processings of conventional heavy truck and workover rig chassis are opening
Generally use of uniting " side is distributed " arrangement, i.e. urea tank are respectively arranged the one or both sides in vehicle frame or table top with EGP babinets,
It is separated by certain spacing, when " side is distributed " is arranged, the primary exhaust conduit of engine exhaust port → EGP babinet air inlets needs
Across vehicle frame main beam and evacuation by way of other systems and there are enough gaps, in order to avoid to by way of adjacent system cause heat radiation
Damage causes the pipeline to move towards complicated, needs repeatedly lateral, vertical and longitudinal bending, processing and installation difficulty are larger.Meanwhile joining
Connect electric line, urea pipe and the coolant liquid pipeline of the after-treatment system of EGP babinets, urea tank, urea pump and engine body
Arrangement trend also need laterally, it is longitudinal repeatedly across around and intersect, complex circuit, installation difficulty is larger and is difficult to effective protection, dimension
Shield and maintenance are unfavorable for the continued reliability work of system, and the failure of after-treatment system is multiple, while having tied up the dimension of engine
Protect operating space and upper dress arrangement space.
Invention content
At least one of regarding to the issue above, after a kind of engine SCR for petroleum well servicing rig
Processing system, in conjunction with petroleum well servicing rig engine head compared to more design feature is higher by the top of speed changer, by speed changer section
Hood design be two-layer equation, top is concordant with hood, by EGP babinets, urea tank (urea pump is integrated in urea tank) 3 greatly
Be arranged in part set engine rear, speed changer section hood upper layer in, optimize pipeline connection trend, improve system
Mounting process and reliability, improve the protective that total system damages external disturbance, and be effectively utilized vacant
Arrangement space has saved the maintenance operation space of host and upper dress arrangement space.
To achieve the above object, the present invention provides a kind of engine SCR aftertreatment system for petroleum well servicing rig, packets
It includes：Engine, EGP babinets, urea tank, urea pump, speed changer and hood；The exhaust outlet of the engine and the EGP babinets
Air inlet face be arranged and be connected by main exhaust, the speed changer and the engine are coupled for associated mode, described
EGP babinets are arranged in parallel in the top of the speed changer with the urea tank on same level direction, and the urea pump is integrated
In the urea tank；The hood is divided into engine section hood and speed changer section hood, the engine section hood with it is described
Speed changer section hood is covered at respectively above the engine and the speed changer, the engine section hood and the speed changer
The upper edge of section hood flushes, and the change is provided between the EGP babinets and the urea tank and the speed changer of lower section
The middle layer of fast device section hood, the EGP babinets are fixed in the middle layer of the speed changer section hood, the EGP babinets
Tailpipe stretches out the tail end of the speed changer section hood and bends towards left side, and the filler of the urea tank stretches out or close to described
The tail end of speed changer section hood.
In the above-mentioned technical solutions, it is preferable that be used for petroleum well servicing rig engine SCR aftertreatment system, further include every
Hot riser, the heat-insulated riser are set between the EGP babinets and the urea tank, and the heat-insulated riser is vertically arranged.
In the above-mentioned technical solutions, it is preferable that the upper layer two sides of the speed changer section hood are steel mesh structure.
Compared with prior art, beneficial effects of the present invention are：By being two-layer equation, top by the hood design of speed changer section
Portion is concordant with hood, will be arranged in engine in EGP babinets, 3 big part set of urea tank (urea pump is integrated in urea tank)
Rear, speed changer section hood upper layer in, optimize the connection trend of pipeline, improve the mounting process of system with it is reliable
Property, the protective that total system damages external disturbance is improved, and be effectively utilized vacant arrangement space, has saved host
Maintenance operation space and upper dress arrangement space.
Description of the drawings
Fig. 1 is the main view of the disclosed engine SCR aftertreatment system for petroleum well servicing rig of an embodiment of the present invention
Structural schematic diagram；
Fig. 2 is the side view of the disclosed engine SCR aftertreatment system for petroleum well servicing rig of an embodiment of the present invention
Structural schematic diagram；
Fig. 3 is the vertical view of the disclosed engine SCR aftertreatment system for petroleum well servicing rig of an embodiment of the present invention
Structural schematic diagram.
In figure, the correspondence between each component and reference numeral is：
1. engine section hood, 2. engines, 3. speed changer section hoods, 4. main exhausts, 5.EGP babinets, 6. thermal insulation boards,
7. urea tank and urea pump, 8. speed changers, 9. tailpipes.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1 to Figure 3, according to a kind of engine SCR post-processings system for petroleum well servicing rig provided by the invention
System, including：Engine 2, EGP babinets 5, urea tank and urea pump 7, speed changer 8 and hood；The exhaust outlet of engine 2 and EGP casees
The air inlet face of body 5 is arranged and is connected by main exhaust 4, and speed changer 8 is that associated mode is coupled with engine 2, EGP babinets
5 are arranged in parallel in the top of speed changer 8 with urea tank 7 on same level direction, and urea pump is integrated in urea tank；Hood point
For engine section hood 1 and speed changer section hood 3, engine section hood 1 covers at engine 2 respectively with speed changer section hood 3
With 8 top of speed changer, engine section hood 1 is flushed with the upper edge of speed changer section hood 3, and EGP babinets 5 and urea tank 7 are under
The middle layer of speed changer section hood 3 is provided between the speed changer 8 of side, EGP babinets 5 are fixed on the centre of speed changer section hood 3
On layer, the tailpipe 9 of EGP babinets 5 stretches out the tail end of speed changer section hood 3 and bends towards left side, and the filler of urea tank 7 stretches out
Or the tail end close to speed changer section hood 3.
In this embodiment, it is higher by more feature compared to 8 top of speed changer using 2 top of engine, by speed changer section
Hood 3 is designed as two-layer equation, and top is concordant with engine section hood 1, reserves enough height, by EGP babinets 5, urea tank and urine
Element pump 7 three big part sets in be arranged in 2 rear of engine, speed changer section hood 3 upper layer in, urea pump is integrated in urea tank
In, the middle layer of speed changer section hood 3 reserves the hold-down support and mounting hole of EGP babinets 5, EGP babinets 5 by hold-down support and
Mounting hole is fixed on the upper layer of speed changer section hood 3.It, can be by the air inlet face engine of EGP babinets 5 when EGP 5 postpositions of babinet
2 exhaust outlet directions are arranged, urea tank 7 is parallel to EGP babinets 5 and is adjacently positioned, and the filler of urea tank 7 stretches out or close to hood
Tail end, convenient for filling urea solution.After the 9 extended hood tail end of tailpipe of EGP babinets 5, to the left, length is reasonable for quarter bend
, meet the regulation that exhaust outlet must not be to the right in GB7258 standards, it is upward, rearwardly or downwardly all unreasonable.
2 exhaust outlet of air inlet face engine of EGP babinets 5 is arranged in 2 rear portion of engine, 2 → EGP of engine babinets 5
Gas exhaust piping move towards unobstructed, brief, without across and the evacuation barriers such as vehicle frame, avoid bending laterally and longitudinally, urinate
The correlation route of pipe line such as plain injection pipe, coolant liquid pipeline, sensor and wirning harness also moves towards to arrange and simplicity along it, processes and pacify
Dress craftsmanship significantly optimizes.
In the above embodiment, it is preferable that the engine SCR aftertreatment system for petroleum well servicing rig, further includes heat-insulated
Riser 6, heat-insulated riser 6 are set between EGP babinets 5 and urea tank 7, and heat-insulated riser 6 is vertically arranged.EGP babinets 5 and urea tank
There is riser to be thermally shielded protection between 7, prevents urea tank 7 excessively heated, the holder of EGP babinets 5 is designed on 7 holder of urea tank
The mounting hole or bearing for having sensor, the small articles of after-treatment system are also fully integrated therein, are facilitated subject to line arrangement.EGP
Babinet 5, urea tank and urea pump 7 (being integrated in urea tank) close arrangement arranged side by side, are thermally shielded every with riser, and be connected pipeline and electricity
The interface of line is closed on, is corresponded to, and pipeline arrangement is smooth succinct, and all concentrates in cover body, and relatively independent and space is spacious and comfortable, without keeping away
Allow other systems, be easily installed inspection, and all obtain the effective protection of cover body, eliminate complexity move towards pipeline be difficult to it is effectively anti-
It protects, be exposed to outer the case where being vulnerable to interference damage, the processing of related pipeline type component significantly optimizes with mounting process,
The installation of SCR aftertreatment system and use reliability are effectively promoted, and after-treatment system failure substantially reduces.Meanwhile having
The spare space of the original short transverse of hood is utilized in effect, vacated out the maintenance operating spaces of 2 body both sides of engine with it is upper
Fill arrangement space.
In the above embodiment, it is preferable that the upper layer two sides of speed changer section hood 3 are steel mesh structure, it is conducive to EGP casees
The heat of body 5 sheds speed changer section hood 3.
The above is embodiments of the present invention, according to the engine SCR proposed by the present invention for petroleum well servicing rig
After-treatment system, by being two-layer equation by speed changer section hood design, top is concordant with engine section hood, by EGP babinets, urine
Be arranged in plain tank and three big part set of urea pump engine rear, speed changer section hood upper layer in, optimize the connection of pipeline
Trend is connect, the mounting process and reliability of system are improved, improves the protective that total system damages external disturbance, and
And it is effectively utilized vacant arrangement space, save the maintenance operation space of host and upper dress arrangement space.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of engine SCR aftertreatment system for petroleum well servicing rig, which is characterized in that including：Engine, EGP babinets,
Urea tank, urea pump, speed changer and hood；
The exhaust outlet of the engine is arranged with the air inlet face of the EGP babinets and is connected by main exhaust, described
Speed changer and the engine are that associated mode is coupled, the EGP babinets with the urea tank is parallel on same level direction sets
It is placed in the top of the speed changer, the urea pump is integrated in the urea tank；
The hood is divided into engine section hood and speed changer section hood, the engine section hood and the speed changer section hood
It covers at respectively above the engine and the speed changer, the top of the engine section hood and the speed changer section hood
Along flushing, the speed changer section hood is provided between the EGP babinets and the urea tank and the speed changer of lower section
Middle layer, the EGP babinets are fixed in the middle layer of the speed changer section hood, and the tailpipe of the EGP babinets stretches out
The tail end of the speed changer section hood simultaneously bends towards left side, and the filler of the urea tank stretches out or close to the speed changer section hood
Tail end.
2. the engine SCR aftertreatment system according to claim 1 for petroleum well servicing rig, which is characterized in that also wrap
Heat-insulated riser is included, the heat-insulated riser is set between the EGP babinets and the urea tank, and the heat-insulated riser is set vertically
It sets.
3. the engine SCR aftertreatment system according to claim 1 for petroleum well servicing rig, which is characterized in that described
The upper layer two sides of speed changer section hood are steel mesh structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770661.0A CN108678844B (en) | 2018-07-13 | 2018-07-13 | Engine SCR post-treatment system for petroleum workover rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770661.0A CN108678844B (en) | 2018-07-13 | 2018-07-13 | Engine SCR post-treatment system for petroleum workover rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678844A true CN108678844A (en) | 2018-10-19 |
| CN108678844B CN108678844B (en) | 2024-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810770661.0A Active CN108678844B (en) | 2018-07-13 | 2018-07-13 | Engine SCR post-treatment system for petroleum workover rig |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677258A (en) * | 2019-01-04 | 2019-04-26 | 东风商用车有限公司 | A kind of frame-type EGP supporting structure |
| CN113839507A (en) * | 2021-11-09 | 2021-12-24 | 淄博京科电气有限公司 | Intelligent control system for oil-electricity dual-drive workover vehicle device |
| WO2022052536A1 (en) * | 2020-09-11 | 2022-03-17 | 中车大连机车研究所有限公司 | Exhaust system for diesel locomotive |
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2018
- 2018-07-13 CN CN201810770661.0A patent/CN108678844B/en active Active
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| US9719233B1 (en) * | 2016-01-29 | 2017-08-01 | Hitachi Construction Machinery Co., Ltd. | Construction machine |
| CN107143402A (en) * | 2017-06-14 | 2017-09-08 | 北京福田戴姆勒汽车有限公司 | Exhaust gas processing device |
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