阅读说明：本技术 管路组合件 (Pipeline sub-assembly ) 是由 贾努斯·斯瓦茨科甚 于 2018-03-22 设计创作，主要内容包括：本发明提供一种管路组合件(10),用于一液体或气体媒介物,所述管路组合件包括：至少一第一管路(12),设计成如一尿素(UREA)管路,以及包括一第二管路(14),用于一液体或气体媒介物,所述第一管路(12)以及所述第二管路(14)互相热性地耦接。根据本发明,所述第一管路(12)缠绕在所述第二管路(14)周围,或者所述第二管路(14)缠绕在所述第一管路(12)周围。(The present invention provides a kind of pipeline sub-assembly (10), for a liquid or gaseous mediums object, the pipeline sub-assembly includes: at least one first pipeline (12), it is designed to such as a urea (UREA) pipeline, and including one second pipeline (14), for a liquid or gaseous mediums object, first pipeline (12) and second pipeline (14) couple mutually hotly.According to the present invention, first pipeline (12) is wrapped in around second pipeline (14) or second pipeline (14) is wrapped in around first pipeline (12).)

1. a kind of pipeline sub-assembly (10) has at least one first pipeline (12) being implemented as such as a urea pipe, and is used for One second pipeline (14) of one liquid or gaseous mediums object, it is characterised in that: first pipeline (12) and second pipe Road (14) couples mutually hotly, wherein first pipeline (12) is wrapped in the second pipeline (14) surrounding or described Second pipeline (14) is wrapped in around first pipeline (12).

2. pipeline sub-assembly as described in claim 1, it is characterised in that: second pipeline includes comparing first pipeline One larger diameter, wherein it is described it is secondary can the diameter be equivalent to, especially more than twice, especially more than four times or More than the diameter of octuple first pipeline.

3. the pipeline sub-assembly as described in any one of claims 1 or 2, it is characterised in that: first pipeline (12) is around institute The second pipeline (14) is stated to be wound in a spirals or be wrapped in a helical pattern around second pipeline (14).

4. the pipeline sub-assembly as described in any one of claim, it is characterised in that: a braided fabric (18), for maintaining described One pipeline (12) is on second pipeline (14).

5. pipeline sub-assembly as claimed in claim 4, it is characterised in that: first pipeline (12) and the braided fabric (18) are mutual It interweaves.

6. the pipeline sub-assembly as described in claim 4-5, it is characterised in that: the braided fabric (18) is a glass fabric.

7. the pipeline sub-assembly as described in any one of claim, it is characterised in that: a protective case (20), around first pipeline (12) and second pipeline (14) around the braided fabric, and in enforceable situation.

8. pipeline sub-assembly as claimed in claim 7, it is characterised in that: the protective case (20) be implemented as a collapsible tube and/ Or the protective case (20) includes a contraction fabric.

9. the pipeline sub-assembly as described in claim 1-7, it is characterised in that: the protective case (20) includes a wavy pipe.

10. the pipeline sub-assembly as described in claim 7-9, it is characterised in that: with the protective case (20) casting described first Pipeline (12) and second pipeline (14).

11. the pipeline sub-assembly as described in any one of claim, it is characterised in that: an at least heating element, with the longitudinal axis side To first pipeline (12) is extended through, setting is in first pipeline (12).

Technical field

The present invention is to be related to a kind of pipeline sub-assembly, and the sub-assembly, which has, to be implemented as such as a urea (UREA) pipeline extremely Few one first pipeline, and with one second pipeline for a liquid or gaseous mediums object.

Background technique

The prior art of various applications discloses the pipeline sub-assembly with one first and one second pipeline.Therefore, one is conducted The coolant line of liquid vehicle be used to radiate.In contrast, from engine discharge heat it is discarded passed through it is relatively large Capacity pipeline, in particular for the waste gas system.

Especially for the emission being stored in the diesel motor casing, system is commonly used in injection urea (also To say a urea liquid) exhaust-gas treatment.However, because of legal provisions, even if the low temperature case usually solidified in urea In, it is still necessary to executing an exhaust-gas treatment.Therefore, heating the urea pipe usually is by electrical heating elements, and the electricity adds Thermal element is wrapped on the outside around the urea pipe in the form of the heating wires, or described by extending into The inside of urea pipe.

For example, United States Patent (USP) case US 2008202616A1 or US 2011/262310A1 discloses such a set Meter, one or more electric heating wires are wrapped in around the pipeline with a liquid or gaseous mediums object.In order to heat purpose, Apply a voltage to the electric wire, therefore heats the heating wires.The sub-assembly can only heat a liquid and need additional Energy supply.It heats the liquid therefore always needs a power source.

Summary of the invention

The purpose of the present invention is to provide a kind of pipeline sub-assemblies, even if combining without pipeline described in an additional power source Part can assign reliable Urea in first pipeline in an engine carrier.

The characteristic of claim 1 provides main feature of the invention.Beneficial design is claim 2 to 11 Purpose.

One pipeline sub-assembly has at least one first pipeline for being implemented as a urea pipe, and is used for a liquid or gas One second pipeline of medium leads to according to the present invention since first pipeline and second pipeline couple together hotly Cross the pipeline sub-assembly achieve the purpose that it is above-mentioned specified, wherein first pipeline is wrapped in around second pipeline, or Second pipeline described in person is wrapped in around first pipeline.

The pipeline sub-assembly makes the medium in second pipeline heat the urea pipe and not have to volume Outer electric flux.In this case, since a pipeline winds the other pipelines, stream passes through the medium of the pipeline Therefore a temperature exchange between object can reach throughout a longer section and throughout a longer time period.

Compared to first pipeline, second pipeline preferably includes a relatively large radius, wherein second pipeline The radius be especially equivalent to more than four times or more than described in octuple or more than ten times first pipelines Diameter.Compared to the urea in first pipeline, therefore the medium in second pipeline may occupy one Very large volume.Therefore, enough thermal energy effectively heat the urea and cause to ensure quickly to heat.

Second pipeline described in the section compared to first pipeline has a relatively large section, passes through described second Pipeline can conduct the hot waste gas from an internal combustion engine and therefore heat the urea in first pipeline.Especially, when When the diameter of second pipeline is less big, liquid vehicle, for example (,) the cooling water of the engine carrier, Ke Nengliu Cross second pipeline.Cooling water is relatively rapid during the running of the internal combustion engine is heated, then may output foot Thermal energy is reached to the urea conducted in first pipeline.Then in most cases, described in first pipeline The additional heating of urea is unnecessary.

For example, first pipeline is wound in a spirals or twines in a helical pattern around second pipeline It is wound on around second pipeline.Due to the winding of rule, the urea adds in a uniform matter in first pipeline Heat is cooling.Further, since the gradient of the spirals or spiral pipeline, therefore the institute of first pipeline can be defined State the duration of length and the temperature exchange.

Can provide as an option maintains first pipeline in the braided fabric on second pipeline.The braided fabric Therefore with fixed first pipeline in a desired position on second pipeline.In addition, the braided fabric can protect to Few first pipeline Antagonistic Environment influences, such as mechanical stress.

First pipeline can also be sequentially interleaved with each other with the braided fabric, in this manner it is possible to described in directly fixing First pipeline is on second pipeline.

Especially, the braided fabric is a glass fabric, the glass fabric provide sufficiently stable property and It is easily handled.In addition, a glass fabric is for temperature-insensitive, and it can therefore be used in a big temperature range.

Can provide a protective case as an option, the protective case surround first pipeline and second pipeline, And around the braided fabric in enforceable situation.The protective case, which provides Antagonistic Environment, to be influenced, for example, especially mechanical The protection of stress.In addition, a fixing element, for example, a clip, it can be in conjunction with the protective case.Then when the folder When son is tightened, the protective case can be prevented, for example, the pipeline sub-assembly is pinched.In addition, hot or cold in order to reduce Loss, the protective case can be isolated external formed.

For example, the protective case is implemented as a collapsible tube and/or the protective case includes a contraction fabric.Phase Compared with second pipeline wound with first pipeline, at the beginning of the such pipeline or a protective case that generated as such fabric Begin to include a larger diameter.Therefore, the protective case may be slided easily on the pipeline sub-assembly.For example, In Under the heat effect, by the pipeline or the fabric of contraction, the diameter of the protective case is then reduced.So The protective case is lain on described first and second pipeline afterwards, and is stationary relative to one another them.

It is optional alternately, especially relative to first pipeline, it is wavy that the protective case can also realize into moveable one Pipe.Therefore, the high-caliber bending and flexibility of the pipeline sub-assembly be can reach.

In a preferred design, first pipeline and second pipeline can be cast with the protective case, causes it Form a positive lock and/or entity connect with the protective case entity.Therefore reach a very firm connection, Meanwhile in enforceable situation, the protective case also fixes first pipeline and second pipeline.

In addition, an at least heating element is arranged in first pipeline, the heating element prolongs in the y direction Extend through first pipeline.When heating may even occur in the medium that is heated or cooled up to before a sufficient temp, The heating wires provide the improvement possibility for heating the medium.

Detailed description of the invention

Further feature, details and advantage of the invention from the wording of claim and will be based on the viewpoint of a schema The exemplary embodiment of attached drawing displays in being described below, wherein with a schema viewpoint:

Fig. 1 shows a perspective view of a pipeline sub-assembly；

Fig. 2 shows the sectional view by the pipeline sub-assembly from Fig. 1；

Fig. 3 a to Fig. 3 c shows the different embodiments of first pipeline；And

Fig. 4 shows an other embodiment of the pipeline sub-assembly.

Specific embodiment

Fig. 1 shows a pipeline sub-assembly 10.The pipeline sub-assembly 10 includes being implemented as urea (UREA) or a urea is molten One first pipeline 12 of one urea pipe of liquid, and for a gas or one second pipeline 14 of liquid.First pipeline 12 are wound around second pipeline 14 with the circumferencial direction U, and thermal coupling in the same way.Therefore temperature exchange hair It is raw flow through make between the urea of first pipeline 12 or the medium for flowing through second pipeline 14 it is described The medium reconciliation urea.

For example, in order to heat the urea of the exhaust gas, the pipeline sub-assembly 10, which is used in, has an internal combustion engine A carrier in.Urea is a urea liquid, the nitrogen oxides in the exhaust gas for reducing the internal combustion engine, especially It is the internal combustion engine operated with diesel motor.For example, it can be formed by the hot waste gas of the internal combustion engine described Medium.For example, it is optional alternately, it is possible to use different mediums, such as in most cases, the engine waste heat with The cooling water that any form utilizes in the carrier.

First pipeline 12 is implemented as a spirals or realizes in a helical pattern, as can be seen, especially in Fig. 3 a To Fig. 3 c, in each case, the winding 16 of first pipeline 12 including a constant gradient.In this case, the pipe Road 12, which can correspond to, to be implemented as a spirals or implements in a helical pattern, or not generate the corresponding spirals shape straight Second pipeline 16 is surrounded to an operating winding.

Especially visible in Fig. 2, compared to first pipeline 12, second pipeline 14 has a relatively large section, A big medium object product is enabled to flow through second pipeline 14.Therefore, the medium can store a relatively great amount of thermal energy Amount is in second pipeline, so that the quick heating in the urea of first pipeline 12 conduction is possible.

In addition, the section that first pipeline 12 is thermally coupled to second pipeline is relatively long, so that one is warm Degree exchange can effectively spread a relatively long section.Therefore, the big section of second pipeline 14, second pipe are combined It may achieve an extraordinary heat exchange between the urea in the medium and first pipeline 12 in road 14.

The validity of the Heat transmission additionally depends on the gradient of the winding 16 of first pipeline 12.Cause This, in this case of a larger gradient (Fig. 3 c), 16 numbers of the winding and first pipeline 12 are thermally coupled to described The section of second pipeline 14 is short of in this case of a smaller gradient (Fig. 3 a).Therefore, same described first Flow velocity inside the diameter of pipeline 12 and same first pipeline 12, the time that a temperature exchange may be implemented is shorter 's.The validity of the heat exchange may also be therefore adjusted by the gradient of the winding 16 of first pipeline 12.

The pipeline sub-assembly 10 that Fig. 4 is shown essentially corresponds to the embodiment that Fig. 1 and Fig. 2 are shown.Further it is provided that one compiles Fabric 18, the braided fabric 18 are interleaved with each other and maintain or support it with first pipeline 12.For example, the braiding Object 18 is a glass fabric, and the braided fabric 18 completely surrounds second pipeline with the circumferencial direction U.It is determined to one Range, first pipeline 12 form the screw thread of the braided fabric 18, that is to say, that first pipeline 12 and the braided fabric 18 are interleaved with each other in the entire length of second pipeline 14, so that certainly preventing 12 phase of the first pipeline A displacement to second pipeline 14.

Further it is provided that a protective case 20 of the unbroken loop around the pipeline sub-assembly 10.Therefore, first pipeline 12 is protected And second pipeline 14 fights mechanical stress.Here it is shown that embodiment in, the protective case is formed by a wavy pipe 20.Since the sub-assembly 10 is relatively soft and can deform easily, be especially bent, thus first pipeline 12 with Second pipeline 14 is movable in the wavy pipe, and therefore can be relative to similarly moving.

Optional alternately the protective case 20 can realize into a collapsible tube, and the collapsible tube is directly abutted against the side fabric 18 And similarly compacting and first pipeline 12 is against second pipeline 14.Further it is optional alternately, the protective case 20 can directly be inserted into first pipeline 12 on second pipeline 14 or two pipelines 12,14 can be cast into it is described Protective case 20.

The present invention can change in various ways and be not limited to the above embodiments one.

For example, in order to sufficiently heat the urea in the first pipeline, it can be set one as an option and add Thermal element is in first pipeline 12, such as the medium in second pipeline 14 is not still up to a sufficient temp The internal combustion engine an initial phase during, the heating component can extraly heat the urea.

Furthermore, it is possible to provide the first pipeline 12 of multiple urea, first pipeline 12 preferably mean allocation are arranged in institute State the excircle of the second pipeline 14.For example, in each case with same gradient, first pipeline 12 is then twined Around second pipeline 14.

All features and advantage occurred in claim, specification and attached drawing, including CONSTRUCTED SPECIFICATION, space arrangement and Method and step is all necessary the composition theory of the present invention itself and its variation.

Drawing reference numeral reference table

10 pipeline sub-assemblies

12 first pipelines

14 second pipelines

The winding article of 16 first pipelines

18 braided fabrics

20 sets

U circumferencial direction