CN213063718U - Double-pipeline vertical urea injection system - Google Patents
Double-pipeline vertical urea injection system Download PDFInfo
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- CN213063718U CN213063718U CN202021626045.7U CN202021626045U CN213063718U CN 213063718 U CN213063718 U CN 213063718U CN 202021626045 U CN202021626045 U CN 202021626045U CN 213063718 U CN213063718 U CN 213063718U
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- urea
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- 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
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Abstract
The utility model discloses a vertical urea injection system of double-pipe way contains urea inlet, urea pump, manages, urea liquid outlet and urea return liquid pipeline altogether, the urea liquid outlet sets up on managing altogether, the one end of managing altogether is sealed, and the other end returns liquid pipeline intercommunication with urea, urea inlet intercommunication has the three-way valve, the three-way valve connects in parallel has two injection pipelines, the injection pipeline contains urea pump and valve, two injection pipelines parallelly connected back and manage altogether and establish ties. The utility model discloses increased injection pipeline all the way on original injection system basis, the design of double-pipe says makes two urea pumps of injection system mountable, and the work can be replaced to the main and auxiliary engine, has increased the life of urea pump, and injection system can continue work and overhaul the maintenance simultaneously under the condition that a urea pump became invalid, and system work efficiency improves.
Description
Technical Field
The utility model belongs to the technical field of marine engine exhaust system, in particular to vertical urea injection system of double-pipeline.
Background
The urea injection technology is one of the emission control technologies of the diesel engine which is widely used at present, the existing injection system for the medium-low speed high-power diesel engine only has one pipeline and is not provided with branch pipelines which are connected in parallel, and one urea pump continuously pumps urea solution. Such single-pipe injection systems can result in a reduced life of the urea pump under sustained high-intensity operating conditions, resulting in the entire injection system ceasing to operate once the urea pump fails. Inconvenience is caused during maintenance, and the urea solution is required to be injected off line to influence the use of the diesel engine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art's defect, provided a vertical urea injection system of double-pipe way, adopt the thought that the whole part becomes zero, be convenient for processing production and follow-up maintenance, in follow-up maintenance process, convenient to detach and change have improved the precision of carrier encapsulation efficiency and encapsulation.
The technical scheme of the utility model:
the utility model provides a vertical urea injection system of double-pipe way, contains urea inlet, urea pump, manages, urea liquid outlet and urea return the liquid pipeline altogether, the urea liquid outlet sets up on managing altogether, the one end of managing altogether is sealed, and the other end returns liquid pipeline intercommunication with urea, urea inlet intercommunication has the three-way valve, the three-way valve has two injection pipelines in parallel, the injection pipeline contains urea pump and valve, two injection pipelines parallelly connected back and manage altogether and establish ties, the urea pump is vertical centrifugal urea pump.
Furthermore, still be equipped with the check valve in the injection pipeline, the connection order is urea pump, valve and check valve, the valve is manual butterfly valve.
Furthermore, a Y-shaped filter is arranged between the urea liquid inlet and the three-way valve.
Further, the three-way valve is an electric adjusting ball valve.
Furthermore, the common pipe is connected with three urea liquid outlets through branch pipes, and an electromagnetic valve and an electromagnetic flow meter are arranged on the branch pipes.
Furthermore, be equipped with pressure sensor and manometer on the common pipe, be equipped with manual needle valve between manometer and the common pipe.
Furthermore, an overflow valve is arranged on the urea liquid return pipeline, and the overflow valve is a spring micro-opening type external thread safety overflow valve.
Further, urea injection system still is equipped with compressed air pipeline, compressed air pipeline route air inlet has connected gradually manual ball valve, manometer, solenoid valve, two oil-water separator, pressure sensor and three gas outlet, be equipped with manual needle valve between manometer and the compressed air pipeline.
Further, a ship injection unit junction box is arranged on the urea injection system.
Compared with the prior art, the utility model discloses increased the injection pipeline of the same kind on original injection system basis, installed a urea pump, a check valve, a manual butterfly valve etc. on this pipeline, made two urea pump wheel flows replacement work, though increased the pipeline of the same kind, do not make original system volume increase and make and produce electromagnetic interference, the unstable symptom of voltage between each unit, its spatial layout is compacter on the contrary, the arrangement of the follow-up safeguard measure of being convenient for. The design of double-pipeline makes injection system mountable two urea pumps, and the main and auxiliary engine can replace the work, has increased the life of urea pump, and injection system can continue work and carry out the maintenance simultaneously under the condition of a urea pump inefficacy, and system work efficiency improves.
The common overflow valve installed on the original return pipeline is replaced by a spring micro-opening type external thread safety overflow valve, so that the stability of the working pressure is improved. On the branch pipeline of the liquid inlet corresponding to the two urea pumps, a manual butterfly valve and a stainless steel one-way valve are installed, the manual butterfly valve is equivalent to a switch, the working state of the corresponding urea pump can be controlled, and the one-way valve can enable the urea solution to flow directionally.
The advantages of the novel injection system on the basis of solving the problems are as follows: the spring that newly uses opens formula external screw thread safety overflow valve a little makes injection pressure more stable, and the urea solution that sprays in the hybrid tube distributes more evenly, and this overflow valve can restrain the resonance of pipeline when the pressure of returning the liquid pipeline is too big, installs a check valve respectively except that the urea that makes in the corresponding feed liquor pipeline flows towards a direction on the pipeline that two urea pumps correspond, and still another advantage is: the working one-way valve generates a certain pressure due to the flow of the urea solution, and the other non-working one-way valve can suppress the pressure generated by the working one-way valve; all install the advantage that manual butterfly valve produced on the inlet fluid pipeline of two branches and be: when one urea pump breaks down, the corresponding manual butterfly valve can be adjusted to stop working, the maintenance can be carried out subsequently, and meanwhile, the other manual butterfly valve is adjusted to enable the other urea pump to start working. In summary, the urea injection system can work continuously and stably.
Drawings
FIG. 1 is a schematic view of the overall structure of the utility model;
FIG. 2 is a schematic view of the overall structure of the utility model;
FIG. 3 is a schematic view of the urea pump of the present invention;
FIG. 4 is a schematic view of the urea pump of the present invention;
FIG. 5 is a schematic view of the urea pump of the present invention;
fig. 6 is a schematic structural view of the compressed air pipeline of the present invention;
fig. 7 is a schematic view of the structure of the injection pipeline of the present invention.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example 1:
the utility model provides a vertical urea injection system of double-pipe way, as shown in fig. 1-7, contains urea inlet 1 (inlet flange), urea pump 2, manages 3 altogether, urea liquid outlet 4 (liquid outlet flange) and urea return the liquid pipeline 5, urea liquid outlet 4 sets up on managing 3 altogether, manage 3's one end altogether and seal, and the other end returns liquid pipeline 5 intercommunication with urea, 1 intercommunication of urea inlet has three-way valve 6, three-way valve 6 has two injection pipeline 7 in parallel, injection pipeline 7 contains urea pump 2 and valve 71, and two injection pipeline 7 establish ties with managing 3 altogether after parallelly connected.
Further, a check valve 72 is further arranged in the injection pipeline 7, the connection sequence is the urea pump 2, the valve 71 and the check valve 72, and the valve is a manual butterfly valve.
Further, a Y-shaped filter 8 is arranged between the urea liquid inlet 1 and the three-way valve 6.
Further, the three-way valve 6 is an electric adjusting ball valve.
Further, three urea outlets 4 are connected to the common pipe 3 through a branch pipe 41, and an electromagnetic valve 42 and an electromagnetic flow meter 43 are arranged on the branch pipe 41.
Further, a pressure sensor 31 and a pressure gauge 32 are arranged on the common pipe 3.
Further, an overflow valve 51 is arranged on the urea return pipeline 5, and the overflow valve 51 is a spring micro-opening type external thread safety overflow valve.
Further, the urea pump 2 is a vertical centrifugal urea pump.
Further, the urea injection system is further provided with a compressed air pipeline 9, and the compressed air pipeline 9 is sequentially connected with a manual ball valve 92, a pressure gauge 93, an electromagnetic valve 94, a two-position oil-water separator 95, a pressure sensor 96 and three air outlets 97 (air outlet flanges) through an air inlet (91 air inlet flange).
Further, a ship injection unit junction box 10 is provided on the urea injection system.
The utility model discloses a pressure gauge, including manometer and common pipe, be equipped with manual needle valve between manometer and the compressed air pipeline, be equipped with manual needle valve on the foretell manometer, loading and unloading manometer is more convenient like this, also can play the effect of slow-down pressure power, and pressure can acutely change during the reaction of system, influences the sensitivity and the life of manometer.
Compared with the prior art, the utility model discloses increased the injection pipeline of the same kind on original injection system basis, installed a urea pump, a check valve, a manual butterfly valve etc. on this pipeline, made two urea pump wheel flows replacement work, though increased the pipeline of the same kind, do not make original system volume increase and make and produce electromagnetic interference, the unstable symptom of voltage between each unit, its spatial layout is compacter on the contrary, the arrangement of the follow-up safeguard measure of being convenient for. The design of double-pipeline makes injection system mountable two urea pumps, and the main and auxiliary engine can replace the work, has increased the life of urea pump, and injection system can continue work and carry out the maintenance simultaneously under the condition of a urea pump inefficacy, and system work efficiency improves.
The common overflow valve installed on the original return pipeline is replaced by a spring micro-opening type external thread safety overflow valve, so that the stability of the working pressure is improved. On the branch pipeline of the liquid inlet corresponding to the two urea pumps, a manual butterfly valve and a stainless steel one-way valve are installed, the manual butterfly valve is equivalent to a switch, the working state of the corresponding urea pump can be controlled, and the one-way valve can enable the urea solution to flow directionally.
The advantages of the novel injection system on the basis of solving the problems are as follows: the spring that newly uses opens formula external screw thread safety overflow valve a little makes injection pressure more stable, and the urea solution that sprays in the hybrid tube distributes more evenly, and this overflow valve can restrain the resonance of pipeline when the pressure of returning the liquid pipeline is too big, installs a check valve respectively except that the urea that makes in the corresponding feed liquor pipeline flows towards a direction on the pipeline that two urea pumps correspond, and still another advantage is: the working one-way valve generates a certain pressure due to the flow of the urea solution, and the other non-working one-way valve can suppress the pressure generated by the working one-way valve; all install the advantage that manual butterfly valve produced on the inlet fluid pipeline of two branches and be: when one urea pump breaks down, the corresponding manual butterfly valve can be adjusted to stop working, the maintenance can be carried out subsequently, and meanwhile, the other manual butterfly valve is adjusted to enable the other urea pump to start working. In summary, the urea injection system can work continuously and stably.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, and the present invention will have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements all fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a vertical urea injection system of double-circuit, contains urea inlet, urea pump, manages, urea liquid outlet and urea return liquid pipeline altogether, the urea liquid outlet sets up on managing altogether, the one end of managing altogether is sealed, and its characterized in that is communicated with urea return liquid pipeline to the other end: the urea inlet intercommunication has the three-way valve, the three-way valve is parallelly connected to have two injection pipelines, the injection pipeline contains urea pump and valve, and two injection pipelines are parallelly connected the back and are established ties altogether, the urea pump is vertical centrifugal urea pump.
2. The dual-line vertical urea injection system of claim 1, wherein: still be equipped with the check valve in the injection pipeline, the connection order is urea pump, valve and check valve, the valve is manual butterfly valve.
3. The dual-line vertical urea injection system of claim 1, wherein: and a Y-shaped filter is arranged between the urea liquid inlet and the three-way valve.
4. The dual-line vertical urea injection system of claim 1, wherein: the three-way valve is an electric adjusting ball valve.
5. The dual-line vertical urea injection system of claim 1, wherein: the common pipe is connected with three urea liquid outlets through branch pipes, and the branch pipes are provided with electromagnetic valves and electromagnetic flow meters.
6. The dual-line vertical urea injection system of claim 1, wherein: be equipped with pressure sensor and manometer on the common pipe, be equipped with manual needle valve between manometer and the common pipe.
7. The dual-line vertical urea injection system of claim 1, wherein: and an overflow valve is arranged on the urea liquid return pipeline, and the overflow valve is a spring micro-opening type external thread safety overflow valve.
8. The dual-line vertical urea injection system of claim 1, wherein: the urea injection system still is equipped with compressed air pipeline, compressed air pipeline route air inlet has connected gradually manual ball valve, manometer, solenoid valve, two oil-water separator, pressure sensor and three gas outlet, be equipped with manual needle valve between manometer and the compressed air pipeline.
9. The dual-line vertical urea injection system of claim 1, wherein: and the urea injection system is provided with a ship injection unit junction box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021626045.7U CN213063718U (en) | 2020-08-07 | 2020-08-07 | Double-pipeline vertical urea injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021626045.7U CN213063718U (en) | 2020-08-07 | 2020-08-07 | Double-pipeline vertical urea injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213063718U true CN213063718U (en) | 2021-04-27 |
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ID=75580702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021626045.7U Active CN213063718U (en) | 2020-08-07 | 2020-08-07 | Double-pipeline vertical urea injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213063718U (en) |
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2020
- 2020-08-07 CN CN202021626045.7U patent/CN213063718U/en active Active
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