CN216342387U - Multi-pump-group large-flow urea supply device - Google Patents
Multi-pump-group large-flow urea supply device Download PDFInfo
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- CN216342387U CN216342387U CN202122714054.2U CN202122714054U CN216342387U CN 216342387 U CN216342387 U CN 216342387U CN 202122714054 U CN202122714054 U CN 202122714054U CN 216342387 U CN216342387 U CN 216342387U
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Abstract
The utility model discloses a multi-pump group large-flow urea supply device which comprises a support frame, wherein a urea solution tank is arranged on the support frame, brackets are arranged on the support frame and positioned on two sides of the urea solution tank, a plurality of solution supply pumps are distributed on the brackets, and the urea solution tank is in fluid communication with the solution supply pumps through a liquid suction pipe and a liquid return pipe respectively. Above-mentioned large-traffic urea feeding device of many pump organizes layout optimal design and integration on a support frame with the urea solution jar, a plurality of solution feed pump and the overall arrangement of various pipelines, can do corresponding structural change according to actual number pump, pipe and connection needs, and the flexibility is strong, has compact space, rationally distributed, conveniently dismantles the structural design of maintenance, has realized intensification, modular mounting form.
Description
Technical Field
The utility model relates to the technical field of diesel engine tail gas aftertreatment, in particular to a multi-pump-group high-flow urea supply device which is used for providing urea aqueous solution serving as a catalyst for an SCR (selective catalytic reduction) system.
Background
In a compression ignition diesel engine, due to the characteristics of diesel fuel and its combustion method, HC and CO are emitted in a much smaller amount than in a gasoline engine, but NOx and PM are emitted in a large amount in a coexisting manner. In order to meet the emission requirements, the diesel engine is difficult to meet more and more strict emission regulations only by combustion improvement and other internal purification technologies, and tail gas can reach the standard only by an exhaust after-treatment device outside the diesel engine.
A urea solution tank, a urea solution supply pump, a control system, and the like are essential important components in the SCR system. At present, the overall layout of the existing urea solution tank cover, urea solution supply pump and control system for the SCR system generally has the following defects: 1) the mounting positions of all parts in the SCR post-treatment are relatively dispersed, and a support is required to be mounted when all the parts are mounted, so that the assembly is complicated; 2) the urea solution tank and the urea solution supply pump are far away from each other, and the urea solution tank and the urea solution supply pump are connected by a long urea supply pipeline, so that the layout mode occupies a large space. The above disadvantages seriously affect the convenience and economy of the SCR system, and a solution is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a multi-pump-group large-flow urea supply device, which is convenient to install and use, and has a concentrated design of a urea solution tank and a urea solution supply pump.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a large-traffic urea feeding device of many pump organizes, its includes the support frame, is provided with urea solution tank on the support frame, and the both sides that just are located urea solution tank on the support frame are provided with the bracket, and a plurality of solution feed pump of having arranged on the bracket carries out the fluid intercommunication through pipette and liquid return pipe respectively between urea solution tank and each solution feed pump.
Particularly, the support frame is provided with an air filter, the air inlet end of the air filter is connected with an air source, the air outlet end of the air filter is connected with an air path distributor through a pipeline, and a compressed air pipe connected to a corresponding solution supply pump is distributed on the air path distributor.
Particularly, two air path distributors are arranged on the support frame and correspond to the brackets on the two sides, and a Y-shaped three-way air joint is arranged at the air outlet end of the air filter and correspondingly connected with the two air path distributors.
In particular, a urea injection pipe leads from the solution feed pump.
In summary, the multi-pump-group large-flow urea supply device has the advantages that the layout of the urea solution tank, the plurality of solution supply pumps and various pipelines is optimally designed and integrated on the same support frame, corresponding structural changes can be made according to actual number of pumps, pipes and connection requirements, the flexibility is strong, the structural design is compact in space and reasonable in layout, disassembly and maintenance are convenient, and intensive and modularized installation forms are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a multi-pump-group large-flow urea supply device provided by an embodiment of the utility model.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction 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.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 1, the present preferred embodiment provides a multi-pump-set large-flow urea supply device, which includes a support frame 1, a urea solution tank 2 disposed on the support frame 1, brackets 3 disposed on the support frame 1 and located at two sides of the urea solution tank 2, a plurality of solution supply pumps 4 disposed on the brackets 3, a liquid suction pipe 5 and a liquid return pipe 6 for fluid communication between the urea solution tank 2 and each solution supply pump 4, and a urea injection pipe led out from the solution supply pump 4.
An air filter 7 is arranged on the support frame 1, the air inlet end of the air filter 7 is connected with an air source, the air outlet end is connected with an air path distributor 8 through a pipeline, and a compressed air pipe 9 connected to a corresponding solution supply pump 4 is distributed on the air path distributor 8. The specification of the gas path distributor 8 is diversified, corresponding structural changes can be made according to different quantities of solution supply pumps 4, and the flexibility is strong.
According to the layout requirement, two air path distributors 8 are arranged on the support frame 1 corresponding to the brackets 3 on the two sides, and a Y-shaped three-way air joint is arranged at the air outlet end of the air filter 7 and correspondingly connected with the two air path distributors 8.
The air filter 7 filters an air source, the air passes through the air path distributor 8 and distributes compressed air to each solution supply pump 4 through the compressed air pipe 9, and the solution supply pump 4 sprays urea water solution mixed with the compressed air into the tail gas discharge pipe of the diesel vehicle in an atomized form through the urea injection pipe.
In conclusion, the multi-pump-group large-flow urea supply device optimally designs and integrates the layout of the urea solution tank, the solution supply pumps and various pipelines on the same support frame, can make corresponding structural changes according to the actual number of pumps, pipes and connection requirements, has strong flexibility, compact space, reasonable layout and convenient structural design for disassembly and maintenance, and realizes the installation form of intensification and modularization.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but is capable of various modifications and changes without departing from the spirit and scope of the utility model, which are intended to be within the scope of the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a large-traffic urea feeding device of many pump organizes, its characterized in that, includes the support frame, be provided with the urea solution jar on the support frame, the both sides that just are located the urea solution jar on the support frame are provided with the bracket, a plurality of solution feed pump has arranged on the bracket, carry out the fluid intercommunication through pipette and liquid return pipe respectively between urea solution jar and each solution feed pump.
2. The multi-pump group high flow urea supply device according to claim 1, characterized in that: the air filter is arranged on the support frame, an air inlet end of the air filter is connected with an air source, an air outlet end of the air filter is connected with an air path distributor through a pipeline, and a compressed air pipe connected to a corresponding solution supply pump is distributed on the air path distributor.
3. The multi-pump group high flow urea supply device according to claim 2, characterized in that: the air filter is characterized in that two air path distributors are arranged on the support frame and correspond to the brackets on the two sides, and a Y-shaped three-way air joint is arranged at the air outlet end of the air filter and correspondingly connected with the two air path distributors.
4. The multi-pump group high flow urea supply device according to claim 1, characterized in that: and a urea injection pipe is led out of the solution supply pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122714054.2U CN216342387U (en) | 2021-11-08 | 2021-11-08 | Multi-pump-group large-flow urea supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122714054.2U CN216342387U (en) | 2021-11-08 | 2021-11-08 | Multi-pump-group large-flow urea supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216342387U true CN216342387U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122714054.2U Active CN216342387U (en) | 2021-11-08 | 2021-11-08 | Multi-pump-group large-flow urea supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216342387U (en) |
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2021
- 2021-11-08 CN CN202122714054.2U patent/CN216342387U/en active Active
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