CN215521013U

CN215521013U - Six post-processing systems in state of intelligent control row of temperature

Info

Publication number: CN215521013U
Application number: CN202120702751.3U
Authority: CN
Inventors: 陈军
Original assignee: Chongqing Cvs Environmental Protection Technology Co ltd
Current assignee: Chongqing Cvs Environmental Protection Technology Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2022-01-14
Anticipated expiration: 2031-04-07

Abstract

The utility model discloses a national six post-processing system for intelligently controlling exhaust temperature, which comprises an IEC intelligent emission control system and a pipeline burner, wherein the IEC intelligent emission control system comprises an ITC intelligent temperature control assembly, a DOC + DPF + SCR + ASC assembly and a novel intelligent post-processing system IEC control assembly, the ITC intelligent temperature control assembly comprises a burner assembly, an ignition rod and component and an oil-gas pump assembly, the DOC + DPF + SCR + ASC assembly comprises a DOC + DPF + SCR + ASC post-processor and a urea injection system, the urea injection system comprises a urea pump, a urea box and a sensor and a urea nozzle and accessory, and the novel intelligent post-processing system IEC control assembly comprises a sensor component, a wire harness assembly, controller hardware, IEC hardware, OBD and TBOX.

Description

Six post-processing systems in state of intelligent control row of temperature

Technical Field

The utility model relates to the technical field of engines, in particular to a national six post-processing system for intelligently controlling exhaust temperature.

Background

In recent years, haze phenomena continuously appear in various big cities in China, which seriously harm the health of people and influence the international image of China. The control of the emission of nitrogen oxides and particulate matters in the tail gas of the diesel engine is the key for treating urban air pollution. The diesel engine is an important product for supporting the national economic development of China, the diesel engine preservation amount is increased by 18% every year, and the environmental protection pressure is huge. On the other hand, the national emission regulations are increasingly strict, the emission limit of NOx is reduced from 3.5g/kW.h in the fourth stage of China to 0.4g/kW.h in the sixth stage of China, and the emission limit of NOx is reduced from 0.02g/kW.h in the fourth stage of China to 0.01g/kW.h in the sixth stage of China. The original built-in purification technology cannot meet new emission requirements, and an emission post-treatment system must be added. Worldwide, it has become common to reduce both diesel nox and pm emissions with selective catalytic reduction technology and wall-flow particulate trap technology. Worldwide, it has become common to reduce diesel nitrogen oxide emissions with selective catalytic reduction technology. SCR converts nitrogen oxides in exhaust gas into harmless nitrogen and water vapor through the process of 'selective catalytic reduction' by spraying aqueous urea solution into the exhaust gas. In terms of national emission limit of diesel engines, the conversion efficiency of nitrogen oxide emission is more than 90%.

At present, however, in the idling and low-load states of the vehicle, the exhaust temperature of the diesel engine is low, and it is difficult to effectively improve the conversion efficiency of HC, CO, NOx, PM, PN in the low-temperature state and to prevent the low-temperature crystallization of urea. Therefore, the improvement is made, and a national six post-processing system for intelligently controlling the exhaust temperature is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model discloses a national six post-processing system for intelligently controlling exhaust temperature, which comprises an IEC intelligent emission control system and a pipeline burner, wherein the IEC intelligent emission control system comprises an ITC intelligent temperature control assembly, a DOC + DPF + SCR + ASC assembly and a novel intelligent post-processing system control assembly, the ITC intelligent temperature control assembly comprises a burner assembly, an ignition rod and component and an oil-gas pump assembly, the DOC + DPF + SCR + ASC assembly comprises a DOC + DPF + SCR + ASC post-processor and a urea injection system, the urea injection system comprises a urea pump, a urea box and a sensor, a urea nozzle and accessories, and the novel intelligent post-processing system control assembly comprises a sensor part, a wiring harness assembly, controller hardware, IEC hardware, OBD and TBOX.

As a preferable technical scheme of the utility model, one end of the pipeline combustor is connected with a pipeline, and one end of the pipeline, which is far away from the pipeline combustor, is connected with a DOC catalyst component.

In a preferred embodiment of the present invention, a DPF catalyst assembly is fixedly mounted to one side of the DOC catalyst assembly, and the DOC catalyst assembly is fixedly connected to the DPF catalyst assembly by a fixing bolt.

As a preferable technical scheme of the utility model, one side of the DPF catalyst assembly is fixedly provided with a urea mixer, one side of the urea mixer is provided with an SCR catalyst assembly, and the SCR catalyst assembly is connected with the DPF catalyst assembly through a mixer shrinkage pipe.

In a preferred embodiment of the present invention, the DPF catalyst assembly and the SCR catalyst assembly are connected in series between exhaust pipes by flanges.

As a preferable aspect of the present invention, the urea injection system performs feedback control of output signals of the urea pump, the urea tank, the sensor, the urea nozzle, and the accessory, and controls an urea injection amount.

As a preferred technical scheme of the utility model, the ITC intelligent temperature control assembly performs feedback control on output signals of the burner assembly, the ignition rod and component and the oil-gas pump assembly.

The utility model has the beneficial effects that:

1. according to the national six post-processing system for intelligently controlling exhaust temperature, the ITC (intelligent exhaust temperature management system) with the combustor is involved in the idle speed and low load state of a vehicle, so that the conversion efficiency of HC, CO, NOx, PM and PN in the low-temperature state can be effectively improved, the low-temperature crystallization of urea is prevented, and after the novel intelligent post-processing system (IEC) is additionally arranged, the vehicle emission reaches the national six PEMS emission standard;

2. this kind of six post-processing systems in state of intelligent control row temperature through installing novel intelligent after-treatment system (IEC) additional for can control the whole car exhaust temperature of C9, make it can keep efficient tail gas pollutant treatment efficiency, through installing novel intelligent after-treatment system (IEC) additional after, the increase of oil consumption and urea is in acceptable within range, does not have the requirement to the exhaust outlet temperature of engine simultaneously, and the adaptation is extensive, the utility model, simple structure is reasonable, the modern design, easy operation to can effective control row temperature situation, have higher practical value.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a perspective view of a national six post-treatment system for intelligently controlling exhaust temperature in accordance with the present invention;

FIG. 2 is a structural block diagram of a national six post-processing system IEC intelligent emission control system for intelligently controlling emission temperature;

FIG. 3 is a block diagram of a novel intelligent post-processing system (IEC) control assembly of a national six post-processing system for intelligently controlling exhaust temperature.

In the figure: 1. a pipeline burner; 2. a DOC catalyst assembly; 3. a DPF catalyst assembly; 4. a urea mixer; 5. an SCR catalyst assembly.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the six-country post-processing system for intelligently controlling exhaust temperature of the present invention includes an IEC intelligent emission control system and a pipeline burner 1, the IEC intelligent emission control system includes an ITC intelligent temperature control assembly, a DOC + DPF + SCR + ASC assembly and a novel intelligent post-processing system IEC control assembly, the ITC intelligent temperature control assembly includes a burner assembly, an ignition rod and component and an oil gas pump assembly, the DOC + DPF + SCR + ASC assembly includes a DOC + DPF + SCR + ASC post-processor and a urea injection system, the urea injection system includes a urea pump, a urea tank and sensor, a urea nozzle and accessories, the novel intelligent post-processing system IEC control assembly includes a sensor component, a harness assembly, controller hardware, IEC hardware, OBD and TBOX.

Wherein, 1 one end of pipeline combustor is connected with the pipeline, and the pipeline is keeping away from 1 one end of pipeline combustor and is connected with DOC catalyst subassembly 2.

Wherein, DOC catalyst component 2 one side fixed mounting has DPF catalyst component 3, DOC catalyst component 2 passes through fixing bolt and DPF catalyst component 3 fixed connection.

Wherein, 3 one sides fixed mounting of DPF catalyst subassembly has urea blender 4, and 4 one sides of urea blender are equipped with SCR catalyst subassembly 5, and SCR catalyst subassembly 5 passes through the blender draw and is connected with DPF catalyst subassembly 3.

Wherein, DPF catalyst module 3 and SCR catalyst module 5 adopt the flange to connect in series between the blast pipes.

The urea injection system performs feedback control on output signals of the urea pump, the urea box, the sensor, the urea nozzle and accessories, and controls the urea injection amount.

Wherein, ITC intelligence temperature control assembly carries out feedback control to the output signal of combustor assembly, ignition stick and subassembly and oil gas pump assembly.

The working principle is as follows: the national six post-processing system for intelligently controlling exhaust temperature can effectively improve the conversion efficiency of HC, CO, NOx, PM and PN in a low-temperature state and prevent low-temperature crystallization of urea by the intervention of an ITC (intelligent exhaust temperature management system) with a combustor in a vehicle idling and low-load state, the vehicle emission reaches the national six PEMS emission standard by additionally arranging a novel intelligent post-processing system (IEC), the exhaust temperature of a C9 whole vehicle can be controlled by additionally arranging the novel intelligent post-processing system (IEC), the high-efficiency exhaust pollutant treatment efficiency can be kept, the increase of oil consumption and urea is within an acceptable range by additionally arranging the novel intelligent post-processing system (IEC), meanwhile, the outlet temperature of engine exhaust is not required, the application is wide, the structure is simple and reasonable, the design is novel, the operation is simple, and the exhaust temperature condition can be effectively controlled, has high practical value.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a six post-processing systems in state of intelligent control row temperature, includes IEC intelligence emission control system and pipeline combustor (1), its characterized in that, IEC intelligence emission control system includes ITC intelligence control by temperature change assembly, DOC + DPF + SCR + ASC assembly and novel intelligence after-treatment system (IEC) control assembly, ITC intelligence control by temperature change assembly includes combustor assembly, ignition bar and subassembly and oil gas pump assembly, DOC + DPF + SCR + ASC assembly includes DOC + DPF + SCR + ASC after-treatment ware and urea injection system, urea injection system includes urea pump, urea case and sensor and urea nozzle and annex, novel intelligence after-treatment system (IEC) control assembly includes sensor part, pencil assembly, controller hardware, IEC hardware, OBD and TBOX.

2. The national six post-treatment system of intelligent control row of temperature of claim 1, characterized in that, pipeline is connected to pipeline combustor (1) one end, the pipeline is kept away from pipeline combustor (1) one end and is connected with DOC catalyst subassembly (2).

3. The national six post-treatment system of intelligent control row of temperature of claim 2, characterized in that, DOC catalyst subassembly (2) one side fixed mounting has DPF catalyst subassembly (3), DOC catalyst subassembly (2) pass through fixing bolt and DPF catalyst subassembly (3) fixed connection.

4. The national six post-treatment system for intelligently controlling exhaust temperature according to claim 3, wherein a urea mixer (4) is fixedly mounted on one side of the DPF catalyst assembly (3), an SCR catalyst assembly (5) is arranged on one side of the urea mixer (4), and the SCR catalyst assembly (5) is connected with the DPF catalyst assembly (3) through a mixer shrinkage pipe.

5. The national six post-treatment system for intelligently controlling exhaust temperature as claimed in claim 4, wherein the DPF catalyst assembly (3) and the SCR catalyst assembly (5) are connected in series between exhaust pipes by flanges.

6. The national six post-processing system for intelligently controlling exhaust temperature according to claim 1, wherein the urea injection system performs feedback control on output signals of a urea pump, a urea tank, a sensor, a urea nozzle and accessories, and controls urea injection quantity.

7. The system of claim 1, wherein the ITC intelligent temperature control assembly performs feedback control on output signals of the burner assembly, the ignition bar and components, and the oil and gas pump assembly.