CN108678844B - Engine SCR post-treatment system for petroleum workover rig - Google Patents
Engine SCR post-treatment system for petroleum workover rig Download PDFInfo
- Publication number
- CN108678844B CN108678844B CN201810770661.0A CN201810770661A CN108678844B CN 108678844 B CN108678844 B CN 108678844B CN 201810770661 A CN201810770661 A CN 201810770661A CN 108678844 B CN108678844 B CN 108678844B
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- engine
- egp
- box body
- transmission
- transmission section
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- 239000003208 petroleum Substances 0.000 title claims description 12
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000004202 carbamide Substances 0.000 claims abstract description 65
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 238000009413 insulation Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation 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 an engine SCR post-treatment system for an oil workover rig, which comprises the following components: the engine, the EGP box body, the urea tank, the urea pump, the transmission and the hood; the exhaust port of the engine is opposite to the air inlet of the EGP box body and is communicated with the air inlet of the EGP box body through a main exhaust pipe, the speed changer is directly connected with the engine, the EGP box body and the urea tank are arranged above the speed changer in parallel in the same horizontal direction, and the urea pump is integrated in the urea tank; the engine cover is divided into an engine section engine cover and a transmission section engine cover, and the engine section engine cover and the transmission section engine cover are respectively covered above the engine and the transmission. According to the technical scheme, the connection trend of the pipeline is optimized, the mounting manufacturability and reliability of the system are improved, the protection of the whole system against external interference damage is improved, the vacant arrangement space is effectively utilized, and the maintenance operation space and the upper mounting arrangement space of the host are saved.
Description
Technical Field
The invention relates to the technical field of special vehicles, in particular to an engine SCR (selective catalytic Reduction) aftertreatment system for a petroleum workover rig.
Background
The SCR exhaust aftertreatment technology is a main flow technical route for achieving emission standard of diesel engine manufacturers, taking Conmins as an example, and the main components of the SCR aftertreatment system comprise: urea tank, urea pump (integrated in urea tank), EGP box (including muffler) (EGP, four tail gas processor elements of diesel oil automatically controlled common rail state, namely the muffler with the catalyst), sensor and circuit, urea injection line, coolant pipe and power supply (gas or electricity, the engine of different producer is different, and the Congminss is pneumatic).
The post-treatment system belongs to a part of integrated parts from the delivery state of a diesel engine manufacturer, needs an automobile manufacturer to carry out arrangement design, completes production and installation of related pipelines and wires, and meets the technical requirements and specifications so as to ensure continuous, reliable and normal operation of the post-treatment system.
The large object unit of the post-treatment system which is required to be arranged and assembled by an automobile manufacturer mainly comprises: EGP box (contain muffler), urea jar, urea pump (most have integrated in urea jar and support assembly), and other smallclothes unit is: the types and the number of small units are numerous and complicated, and tens to one hundred units (depending on the arrangement form and the manufacturer and model of the diesel engine) are arranged.
The engine exhaust port is usually arranged on the side surface of the cylinder body, the opening is backwards, the SCR aftertreatment system of the conventional heavy truck and workover rig chassis is usually arranged in a side distributed mode, namely, the urea tank and the EGP box body are respectively arranged on one side or two sides of the frame or the table top at a certain interval, when the side distributed mode is arranged, a main exhaust pipeline from the engine exhaust port to the EGP box body air inlet needs to span a main beam of the frame and other systems passing through avoidance and leave enough gaps so as not to cause heat radiation damage to adjacent systems passing through, the pipeline has complex trend, and needs to be bent transversely, vertically and longitudinally for many times, and the processing and installation difficulties are high. Meanwhile, the arrangement trend of an electric line, a urea line and a cooling liquid line of an aftertreatment system connected with an EGP box body, a urea tank, a urea pump and an engine body also needs to be transversely and longitudinally crossed for multiple times, the line is complex, the installation difficulty is high, effective protection, maintenance and overhaul are difficult, the continuous reliability work of the system is not facilitated, the fault of the aftertreatment system is frequent, and meanwhile, the maintenance operation space and the uploading arrangement space of the engine are occupied.
Disclosure of Invention
In order to solve at least one of the problems, the invention provides an engine SCR post-treatment system for an oil workover rig, which combines the structural characteristics that the top of the engine of the oil workover rig is higher than the top of a transmission, designs a hood of a transmission section into a double-layer type, and the top of the hood is flush with the engine hood, and intensively arranges large parts of an EGP box body and a urea tank (a urea pump is integrated in the urea tank) 3 in the rear of the engine and the upper layer of the hood of the transmission section, so that the connection trend of pipelines is optimized, the mounting manufacturability and reliability of the system are improved, the protection of the whole system against external interference damage is improved, the vacant arrangement space is effectively utilized, and the maintenance operation space and the upper arrangement space of a host are saved.
To achieve the above object, the present invention provides an engine SCR aftertreatment system for a petroleum workover rig, comprising: the engine, the EGP box body, the urea tank, the urea pump, the transmission and the hood; the exhaust port of the engine is opposite to the air inlet of the EGP box body and is communicated with the air inlet of the EGP box body through a main exhaust pipe, the speed changer is directly connected with the engine, the EGP box body and the urea tank are arranged above the speed changer in parallel in the same horizontal direction, and the urea pump is integrated in the urea tank; the engine cover is divided into an engine section cover and a transmission section cover, the engine section cover and the transmission section cover are respectively covered on the engine and above the transmission, the engine section cover and the upper edge of the transmission section cover are flush, an EGP box body and a urea tank are arranged between the urea tank and the transmission below, the EGP box body is fixed on the middle layer of the transmission section cover, a tail pipe of the EGP box body extends out of the tail end of the transmission section cover and bends to the left side, and a filling port of the urea tank extends out of or is close to the tail end of the transmission section cover.
In the above technical scheme, preferably, the engine SCR aftertreatment system for a petroleum workover rig further comprises a heat insulation riser, the heat insulation riser is arranged between the EGP box and the urea tank, and the heat insulation riser is arranged vertically.
In the above technical solution, preferably, two sides of the upper layer of the transmission section hood are steel wire mesh structures.
Compared with the prior art, the invention has the beneficial effects that: through designing the aircraft bonnet of derailleur section to bilayer formula, top and engine bonnet parallel and level, with EGP box, urea jar (urea pump integration in urea jar) 3 major components concentrate and arrange in the upper strata of engine rear, derailleur section aircraft bonnet, optimized the hookup trend of pipeline, improved the installation manufacturability and the reliability of system, promoted the protectiveness of overall system to the damage of external disturbance to the space is arranged in the available space of having effectively utilized, has practiced thrift the maintenance operation space and the upper mounting of host computer and has arranged the space.
Drawings
FIG. 1 is a schematic diagram of a front view of an engine SCR aftertreatment system for a petroleum workover rig, according to one embodiment of the present disclosure;
FIG. 2 is a schematic side view of an engine SCR aftertreatment system for a petroleum workover rig, according to one embodiment of the present disclosure;
FIG. 3 is a schematic top view of an engine SCR aftertreatment system for a petroleum workover rig according to one embodiment of the present disclosure.
In the figure, the correspondence between each component and the reference numeral is:
1. Engine section hood, engine, transmission section hood, main exhaust pipe, 5.EGP box, 6, heat shield, 7, urea tank and urea pump, 8, transmission, 9, tail pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is described in further detail below with reference to the attached drawing figures:
As shown in fig. 1 to 3, an engine SCR aftertreatment system for a petroleum workover rig according to the present invention includes: the engine 2, the EGP box 5, the urea tank and the urea pump 7, the transmission 8 and the hood; the exhaust port of the engine 2 is opposite to the air inlet of the EGP box body 5 and is communicated with the air inlet through the main exhaust pipe 4, the speed changer 8 is directly connected with the engine 2, the EGP box body 5 and the urea tank 7 are arranged above the speed changer 8 in parallel in the same horizontal direction, and the urea pump is integrated in the urea tank; the engine cover is divided into an engine section cover 1 and a transmission section cover 3, the engine section cover 1 and the transmission section cover 3 are respectively covered above the engine 2 and the transmission 8, the upper edges of the engine section cover 1 and the transmission section cover 3 are flush, an intermediate layer of the transmission section cover 3 is arranged between the EGP box body 5 and the urea tank 7 and the transmission 8 below, the EGP box body 5 is fixed on the intermediate layer of the transmission section cover 3, an exhaust tail pipe 9 of the EGP box body 5 extends out of the tail end of the transmission section cover 3 and is bent to the left side, and a filling port of the urea tank 7 extends out of or is close to the tail end of the transmission section cover 3.
In this embodiment, the transmission section hood 3 is designed to be of a double-layer type by utilizing the characteristic that the top of the engine 2 is higher than the top of the transmission section hood 8, the top is flush with the engine section hood 1, a sufficient height is reserved, three parts of the EGP box 5, the urea tank and the urea pump 7 are intensively arranged in the upper layer of the transmission section hood 3 behind the engine 2, the urea pump is integrated in the urea tank, the fixed support and the mounting hole of the EGP box 5 are reserved in the middle layer of the transmission section hood 3, and the EGP box 5 is fixed on the upper layer of the transmission section hood 3 through the fixed support and the mounting hole. When the EGP box body 5 is arranged at the rear, the air inlet of the EGP box body 5 can be arranged opposite to the direction of the air outlet of the engine 2, the urea tank 7 is arranged adjacently parallel to the EGP box body 5, and the filling port of the urea tank 7 extends out or is close to the tail end of the engine cover, so that urea liquid can be conveniently filled. The tail pipe 9 of the EGP box body 5 can extend out of the tail end of the hood, then is bent to the left side at right angles, the length is reasonable, the requirement that the exhaust port cannot be rightwards in the GB7258 standard is met, and the exhaust port is unreasonable upwards, backwards or downwards.
The air inlet of the EGP box body 5 is arranged at the rear part of the engine 2 opposite to the air outlet of the engine 2, the trend of an exhaust pipeline of the engine 2-EGP box body 5 is smooth and short, no obstacle such as a frame is needed to be crossed and avoided, transverse and longitudinal bending is avoided, and related pipeline such as a urea injection pipe, a cooling liquid pipeline, a sensor and a wire harness are also arranged along the trend of the pipeline so as to be simplified, and the processing and installation manufacturability is remarkably optimized.
In the above embodiment, the engine SCR aftertreatment system for a petroleum workover rig preferably further includes a heat insulation riser 6, the heat insulation riser 6 being disposed between the EGP tank 5 and the urea tank 7, the heat insulation riser 6 being disposed vertically. There is the riser between EGP box 5 and the urea jar 7 to carry out thermal-insulated protection, prevents that urea jar 7 from excessively being heated, and EGP box 5's support and the last mounting hole or the support that designs the sensor of urea jar 7 support also integrate in wherein, make things convenient for the circuit arrangement to be in order. EGP box 5, urea jar and urea pump 7 (integrate in the urea jar) are close to arranging side by side, separate with the riser and insulate against heat, the interface of associative pipeline and electric wire is close, correspond, the pipeline is arranged smoothly succinctly, and concentrate on in the cover body, relative independence and space are wide, need not to dodge other systems, be convenient for install the inspection, and the whole effective protection that obtains the cover body, the complex trend pipeline of having eliminated is difficult to effectively protect, expose the condition of easily receiving the interference damage outward, processing and the installation manufacturability of relevant pipeline class spare part are showing and optimizing, the installation and the use reliability of SCR aftertreatment system effectively promote, the emergence of aftertreatment system trouble is showing and is reducing. Simultaneously, the original space in the height direction of the engine cover is effectively utilized, and the maintenance operation space and the upper mounting arrangement space on two sides of the engine body 2 are vacated.
In the above embodiment, preferably, the two upper sides of the transmission casing 3 are steel wire mesh structures, so that heat of the EGP box 5 can be dissipated out of the transmission casing 3.
The engine SCR post-treatment system for the petroleum workover rig provided by the invention has the advantages that the transmission section hood is designed to be of a double-layer type, the top is flush with the engine section hood, the EGP box body, the urea tank and the urea pump are intensively arranged behind the engine and in the upper layer of the transmission section hood, the connection trend of pipelines is optimized, the installation manufacturability and the reliability of the system are improved, the protection of the whole system against external interference damage is improved, the vacant arrangement space is effectively utilized, and the maintenance operation space and the upper arrangement space of a host machine are saved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An engine SCR aftertreatment system for a petroleum workover rig, comprising: the engine, the EGP box body, the urea tank, the urea pump, the transmission, the hood and the heat insulation vertical plate;
the exhaust port of the engine is opposite to the air inlet of the EGP box body and is communicated with the air inlet of the EGP box body through a main exhaust pipe, the speed changer is directly connected with the engine, the EGP box body and the urea tank are arranged above the speed changer in parallel in the same horizontal direction, and the urea pump is integrated in the urea tank;
The engine cover is divided into an engine section hood and a transmission section hood, the engine section hood and the transmission section hood are respectively covered above the engine and the transmission, the transmission section hood is double-layer, the engine section hood is flush with the upper edge of the transmission section hood, an intermediate layer of the transmission section hood is arranged between the EGP box body and the urea tank, and between the EGP box body and the transmission below, the EGP box body is fixed on the intermediate layer of the transmission section hood, an exhaust tail pipe of the EGP box body extends out of the tail end of the transmission section hood and is bent to the left side, and a filling port of the urea tank extends out of or is close to the tail end of the transmission section hood;
the heat insulation vertical plate is arranged between the EGP box body and the urea tank, and is vertically arranged;
And two side surfaces of the upper layer of the transmission section hood are of steel wire mesh structures.
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 CN108678844A (en) | 2018-10-19 |
| CN108678844B true 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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| CN (1) | CN108678844B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109677258B (en) * | 2019-01-04 | 2023-12-05 | 东风商用车有限公司 | Frame type EGP support structure |
| CN111878196B (en) * | 2020-09-11 | 2024-05-14 | 中车大连机车研究所有限公司 | Exhaust system of diesel locomotive |
| CN113839507B (en) * | 2021-11-09 | 2023-11-24 | 淄博京科电气有限公司 | Intelligent control system for oil-electricity double-drive well repair vehicle device |
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|---|---|---|---|---|
| CN202727968U (en) * | 2012-08-16 | 2013-02-13 | 陕西通力专用汽车有限责任公司 | Structure for oilfield well maintenance vehicle exhaust system |
| CN204511651U (en) * | 2015-01-04 | 2015-07-29 | ***通信集团江苏有限公司 | The sound-deadening and noise-reducing device of heavy duty generator set |
| KR20150111174A (en) * | 2014-03-25 | 2015-10-05 | 대동공업주식회사 | A combine |
| CN105074154A (en) * | 2013-03-28 | 2015-11-18 | 洋马株式会社 | Engine device for work vehicles |
| 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 |
| CN208431051U (en) * | 2018-07-13 | 2019-01-25 | 三江瓦力特特种车辆有限公司 | Engine SCR aftertreatment system for petroleum well servicing rig |
-
2018
- 2018-07-13 CN CN201810770661.0A patent/CN108678844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202727968U (en) * | 2012-08-16 | 2013-02-13 | 陕西通力专用汽车有限责任公司 | Structure for oilfield well maintenance vehicle exhaust system |
| CN105074154A (en) * | 2013-03-28 | 2015-11-18 | 洋马株式会社 | Engine device for work vehicles |
| KR20150111174A (en) * | 2014-03-25 | 2015-10-05 | 대동공업주식회사 | A combine |
| CN204511651U (en) * | 2015-01-04 | 2015-07-29 | ***通信集团江苏有限公司 | The sound-deadening and noise-reducing device of heavy duty generator set |
| 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 |
| CN208431051U (en) * | 2018-07-13 | 2019-01-25 | 三江瓦力特特种车辆有限公司 | Engine SCR aftertreatment system for petroleum well servicing rig |
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| Publication number | Publication date |
|---|---|
| CN108678844A (en) | 2018-10-19 |
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