CN116422655A - Flow channel flushing device of urea injection system - Google Patents
Flow channel flushing device of urea injection system Download PDFInfo
- Publication number
- CN116422655A CN116422655A CN202310685520.XA CN202310685520A CN116422655A CN 116422655 A CN116422655 A CN 116422655A CN 202310685520 A CN202310685520 A CN 202310685520A CN 116422655 A CN116422655 A CN 116422655A
- Authority
- CN
- China
- Prior art keywords
- urea
- water
- seat
- positioning seat
- urea injector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 239000004202 carbamide Substances 0.000 title claims abstract description 139
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 title claims abstract description 21
- 239000007924 injection Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 111
- 238000004140 cleaning Methods 0.000 claims abstract description 61
- 239000007921 spray Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 50
- 238000005507 spraying Methods 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the technical field of urea nozzle cleaning, and particularly provides a urea injection system flow channel flushing device which comprises a workbench and a bracket, wherein a urea injector is provided with an inlet end and an outlet end, and a positioning seat is fixed at the bottom of the workbench; the cleaning mechanism comprises a cleaning spray head, the cleaning spray head is arranged at the center of the positioning seat, a water spray port is formed in the center of the cleaning spray head, and a water outlet is formed in the edge of the cleaning spray head; the water return mechanism comprises an upper water return pipe and a lower water return pipe, the lower water return pipe stretches into the positioning seat, and the upper water return pipe is connected with the outlet end of the urea injector. The positioning seat is used for fixing the urea injector, when the flow passage of the urea injector is completely blocked, the cleaning water flow enters the urea injector from the water spray opening and is discharged from the water discharge opening so as to continuously flush the inlet end and part of the flow passage until the flow passage is smooth, and when the flow passage of the urea injector is smooth, the cleaning water flow enters the urea injector from the water spray opening and is discharged from the outlet end of the urea injector.
Description
Technical Field
The invention relates to the technical field of urea nozzle cleaning, in particular to a flow channel flushing device of a urea injection system.
Background
The urea injector is a main executive component of the tail gas treatment technology of the diesel engine, and because urea has the characteristic of easy crystallization, if a large amount of urea remains in a flow passage in the urea injector, the phenomenon that the urea injector is blocked and does not work or has abnormal flow is easily caused. The cleaning device of the urea injector in the prior art adopts constant-temperature water flow to clean the urea injector, and has the defects that the urea injector has complex steps and low working efficiency when being positioned and sealed during cleaning.
The Chinese patent with the publication number of CN213887450U discloses a cleaning device for an inner runner of a urea injector, which comprises a workbench, wherein a workpiece seat and a sealing seat for blocking an upper port of the urea injector are arranged on the workbench, the sealing seat is arranged right above an optional workpiece, a guide rod is vertically arranged on the side part of the workpiece seat, the sealing seat is slidably connected with the optional guide rod, a spring is sleeved on the guide rod, a first end of the spring is connected with the upper end face of the optional workbench, and a second end of the spring is connected with an optional support bearing. When the urea injector is in sealing installation, the sealing seat is pushed to move upwards along the guide post to enable the spring to be in a stretching state, and the bottom surface of the urea injector is placed on the upper end surface of the workpiece seat; and loosening the sealing seat, and resetting the spring to drive the sealing seat to move downwards along the guide pillar and tightly press the urea injector on the workpiece seat, so that the urea injector is rapidly positioned. However, this patent still suffers from a number of disadvantages: 1. when the urea injector is completely blocked, water cannot enter the backflow port from the flow passage passing through the urea injector, so that the water cannot smoothly circulate for cleaning. 2. The end portions of the urea injectors are provided in a curved configuration, and it is difficult to fix the curved urea injectors in the above-mentioned patent.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problem that water flow is difficult to pass through a flow channel for cleaning after the urea injector is blocked, the invention provides a flow channel flushing device of a urea injection system to solve the problem.
The technical scheme adopted for solving the technical problems is as follows: the urea injection system runner flushing device comprises a workbench and a urea injector, wherein a bracket for placing the urea injector is fixed on the workbench, the urea injector is provided with an inlet end and an outlet end, the urea injector further comprises a positioning seat, a cleaning mechanism and a water return mechanism, the positioning seat is fixed at the bottom of the workbench, and the inlet end of the urea injector can be inserted into the positioning seat and is in sealing connection with the positioning seat; the cleaning mechanism comprises a cleaning spray head, the cleaning spray head is arranged at the center of the positioning seat, the cleaning spray head can be inserted into the inlet end of the urea injector, a water spray port is formed in the center of the cleaning spray head, the water spray port is communicated with a water pump through a water inlet pipe, and a water outlet is formed in the edge of the cleaning spray head; the water return mechanism comprises an upper water return pipe and a lower water return pipe, the lower water return pipe stretches into the positioning seat, the urea ejector, the water spraying port and the lower water return pipe are communicated through the positioning seat after the urea ejector is inserted into the positioning seat, and the upper water return pipe is connected with the outlet end of the urea ejector.
Preferably, the positioning seat comprises a base, a seat cylinder, a sealing cover and a plurality of clamping pieces, wherein the base is fixedly connected with the workbench, the seat cylinder is fixed on the base, the sealing cover is fixed on the seat cylinder, the clamping pieces are arranged in the seat cylinder in a circular array, a through hole for allowing the urea injector to penetrate into the seat cylinder is formed in the center of the sealing cover, a sealing ring is fixed in the through hole, and the sealing ring and the clamping pieces are in butt joint with the outer wall of the urea injector.
Preferably, the bottom of the cleaning spray head is also fixed with a lifting frame.
Preferably, the back pressure device further comprises a back pressure device arranged in the positioning seat, the back pressure device comprises a water return seat, a retaining plate, a spring and a plug, a transverse groove is formed in the water return seat, the transverse groove is communicated with the lower water return pipe, the retaining plate is fixed at one end of the transverse groove and used for blocking the transverse groove, the plug is slidably mounted in the transverse groove, and the spring is abutted between the retaining plate and the plug.
Preferably, the back pressure device further comprises an adjusting rod, one end of the adjusting rod penetrates through the retaining plate and is in threaded connection with the retaining plate, the plug is slidably sleeved on the adjusting rod, and the other end of the adjusting rod extends out of the positioning seat and is fixed with an adjusting knob at the end portion.
Preferably, the workbench is further fixed with a tube seat, the tube seat is provided with a universal tube, the upper end of the universal tube is fixed with a sealing cylinder, the upper water return tube is communicated with the sealing cylinder through the universal tube, and the outlet end of the urea injector can be inserted into the sealing cylinder.
Preferably, the end part of the sealing cylinder is fixed with a ring cover, the outlet end of the urea injector penetrates through the ring cover and then is inserted into the sealing cylinder, and the gap between the ring cover and the outlet end is in sealing connection through a rubber ring.
The beneficial effects of the invention are as follows: the urea injector is provided with a positioning seat and a cleaning mechanism, the urea injector is fixed through the positioning seat, a cleaning nozzle of the cleaning mechanism synchronously stretches into the urea injector in the fixing process, a water spray port of the cleaning nozzle is used for flushing a runner in the urea injector, when the runner of the urea injector is completely blocked, cleaning water flow can enter the urea injector from the water spray port and is discharged from a water outlet so as to continuously flush the inlet end and part of the runner of the urea injector until the runner is unblocked, and when the runner of the urea injector is unblocked, the cleaning water flow enters the urea injector from the water spray port and is discharged from the outlet end of the urea injector so as to simultaneously clean the inlet end, the outlet end and the runner of the urea injector.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the working state of a flow channel flushing device of a urea injection system according to the present invention;
FIG. 2 is a schematic view of the flow channel flushing device of the urea injection system according to the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of a positioning seat of a urea injection system flow channel flushing device of the present invention;
FIG. 4 is a schematic view of the internal structure of the positioning seat of the flow channel flushing device of the urea injection system of the present invention;
FIG. 5 is a schematic view of the position of the lifting frame of the urea injection system flow channel flushing device of the present invention;
FIG. 6 is a schematic view of the cleaning nozzle of the urea injection system flow channel flushing device of the present invention;
fig. 7 is a schematic structural view of a back pressure device of a flow channel flushing device of a urea injection system according to the present invention.
Reference numerals: 1. a work table; 2. a urea injector; 3. a bracket; 4. an inlet end; 5. an outlet end; 6. a positioning seat; 7. a cleaning mechanism; 8. a water return mechanism; 9. cleaning the spray head; 10. a water jet; 11. a water inlet pipe; 12. a water outlet; 13. an upper return pipe; 14. a lower return pipe; 15. a base; 16. a seat cylinder; 17. sealing cover; 18. a clamping piece; 19. lifting the frame; 20. a back pressure device; 21. a backwater seat; 22. a retaining plate; 23. a spring; 24. a plug; 25. a transverse groove; 26. an adjusting rod; 27. an adjustment knob; 28. a tube seat; 29. a universal pipe; 30. a sealing cylinder; 31. and a ring cover.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 7, the embodiment of the urea injection system runner flushing device comprises a workbench 1 and a urea injector 2, wherein a bracket 3 for placing the urea injector 2 is fixed on the workbench 1, the urea injector 2 is fixed through the bracket 3 to prevent the urea injector 2 from toppling over in the cleaning process, the urea injector further comprises a positioning seat 6, a cleaning mechanism 7 and a backwater mechanism 8, the urea injector 2 is provided with an inlet end 4 and an outlet end 5, urea crystals normally block the runner between the inlet end 4 and the outlet end 5, urea is water-soluble, therefore, the runner of the urea injector 2 needs to be cleaned by water flow, the positioning seat 6 is fixed at the bottom of the workbench 1, the inlet end 4 of the urea injector 2 can be inserted into the positioning seat 6 and is in sealing connection with the positioning seat 6, the inlet end 4 is positioned and sealed through the positioning seat 6, the cleaning water flow of the cleaning mechanism 7 can smoothly enter the runner of the urea injector 2 to flush the runner, and the waste water generated by flushing is collected through the backwater mechanism 8.
The cleaning mechanism 7 comprises a cleaning spray head 9, the cleaning spray head 9 is arranged at the center of the positioning seat 6, the cleaning spray head 9 can be inserted into the inlet end 4 of the urea injector 2, a water spray opening 10 is formed in the center of the cleaning spray head 9, the water spray opening 10 is communicated with a water pump through a water inlet pipe 11, a water outlet 12 is formed in the edge of the cleaning spray head 9, a lifting frame 19 is further fixed at the bottom of the cleaning spray head 9, and the urea injector 2 can be placed on the lifting frame 19 after being inserted into a seat cylinder 16.
Firstly, the inlet end 4 of the urea injector 2 is inserted into the positioning seat 6, at the moment, the cleaning spray head 9 arranged in the center of the positioning seat 6 simultaneously enters the inlet end 4 of the urea injector 2, water flow is sent into the urea injector 2 from the water spray port 10 through the water pump and the water inlet pipe 11, a flow channel in the urea injector 2 is flushed, when the urea injector 2 is blocked seriously, and the water flow can not flow out of the inlet end 4 of the urea injector 2, the waste water in the urea injector 2 can be discharged into the positioning seat 6 from the water outlet 12 at the edge of the cleaning spray head 9, the continuous flow of the cleaning water flow is kept, so that the cleaning spray head 9 can continuously flush the blocked flow channel in the urea injector 2, and after the flow channel is unblocked, part of the cleaning water flow in the urea injector 2 can flow out of the outlet end 5, so that the inlet end 4 and the outlet end 5 of the urea injector 2 are simultaneously cleaned.
The water return mechanism 8 comprises an upper water return pipe 13 and a lower water return pipe 14, wherein the lower water return pipe 14 extends into the positioning seat 6, after the urea injector 2 is inserted into the positioning seat 6, the urea injector 2, the water spray port 10 and the lower water return pipe 14 are communicated through the positioning seat 6, namely, when the urea injector 2 which is completely blocked is cleaned, water flow enters the urea injector 2 from the water spray port 10, the flow channel of the urea injector 2 is cleaned, and cleaned waste water is discharged from the water outlet 12 into the positioning seat 6 and then is discharged through the lower water return pipe 14.
The upper return pipe 13 is connected to the outlet end 5 of the urea injector 2, and when the flow passage of the urea injector 2 is clear, the waste water discharged from the outlet end 5 of the urea injector 2 can be discharged from the upper return pipe 13 so as to maintain the clear flow of the cleaning water.
The positioning seat 6 comprises a base 15, a seat cylinder 16, a sealing cover 17 and a plurality of clamping pieces 18, wherein the base 15 is fixedly connected with the workbench 1, the seat cylinder 16 is fixed on the base 15, the sealing cover 17 is fixed on the seat cylinder 16, the plurality of clamping pieces 18 are arranged in the seat cylinder 16 in a circular array, a through hole for allowing the urea injector 2 to penetrate into the seat cylinder 16 is formed in the center of the sealing cover 17, a sealing ring is fixed in the through hole, the sealing ring and the plurality of clamping pieces 18 are abutted to the outer wall of the urea injector 2, waste water in the positioning seat 6 can be prevented from flowing out to cause pollution by sealing the sealing ring, and the urea injector 2 is guided by the plurality of clamping pieces 18 so that the cleaning spray head 9 can smoothly enter the inlet end 4 of the urea injector 2.
The back pressure device 20 is arranged in the positioning seat 6, the back pressure device 20 comprises a water return seat 21, a retaining plate 22, a spring 23 and a plug 24, a transverse groove 25 is formed in the water return seat 21, the transverse groove 25 is communicated with the lower water return pipe 14, the retaining plate 22 is fixed at one end of the transverse groove 25 and used for blocking the transverse groove 25, the plug 24 is slidably arranged in the transverse groove 25, and the spring 23 is abutted between the retaining plate 22 and the plug 24.
Because the flow channel inside the urea injector 2 is thinner, the resistance of the water flow passing through the flow channel is larger, and in order to ensure that the water flow can smoothly enter the flow channel for cleaning, the back pressure device 20 is arranged at the end part of the lower water return pipe 14 to block the water flow entering the lower water return pipe 14, so that the water pressure can enter the lower water return pipe 14 from the positioning seat 6 for discharging after reaching a certain requirement.
When the fully blocked urea injector 2 is cleaned, waste water in the positioning seat 6 is contacted with the plug 24, the plug 24 is pressed into the backwater seat 21, at the moment, the spring 23 is compressed, the plug 24 is kept in stress balance by the elastic force of the spring 23, the transverse groove 25 is closed by the plug 24, water flow is prevented from being discharged from the transverse groove 25 into the lower backwater pipe 14, during the cleaning process, water flow continuously enters from the water spraying port 10 and then is discharged into the seat cylinder 16 of the positioning seat 6 from the water outlet 12, the water pressure in the seat cylinder 16 and the urea injector 2 is increased, the water flow is enabled to enter into the urea injector 2 more easily to flush a flow channel, when the water pressure is continuously increased to a certain pressure, the spring 23 is compressed, the plug 24 is enabled to be moved into position, at the moment, the connecting port of the transverse groove 25 and the lower backwater pipe 14 is opened, the transverse groove 25 is closed again by the reset pushing of the plug 24 by the spring 23, and therefore the water pressure of the cleaning water flow is kept within a certain range, and the cleaning effect of the urea injector 2 is improved.
When the flow passage of the urea injector 2 is unblocked, the water flow entering from the water spray port 10 is directly discharged from the outlet end 5 of the urea injector 2, and the opening of the outlet end 5 of the urea injector 2 is smaller, so that the plug 24 can be slightly pushed to cause the water flow pressure to rise, but after the pressure is relieved through the outlet end 5, the residual liquid pressure can not continuously push the plug 24 to open the openings of the transverse groove 25 and the lower water return pipe 14, thereby realizing the effect of continuously flushing the urea injector 2 with unblocked flow passage.
The back pressure device 20 further comprises an adjusting rod 26, one end of the adjusting rod 26 penetrates through the retaining plate 22 and is in threaded connection with the retaining plate 22, the plug 24 is slidably sleeved on the adjusting rod 26, a stop block is fixed at one end, close to the plug 24, of the adjusting rod 26, the plug 24 is kept in an abutting state with the stop block through elastic force provided by the spring 23, the other end of the adjusting rod 26 extends out of the positioning seat 6, an adjusting knob 27 is fixed at the end of the adjusting rod 26, the length, extending into the backwater seat 21, of the adjusting rod 26 is adjusted through rotating the adjusting rod 26, the position of the plug 24 is adjusted, pressure required by pushing the plug 24 to move is adjusted, and the water pressure in the positioning seat 6 and the urea injector 2 is adjusted, so that urea injectors 2 with different blocking degrees are cleaned.
The workbench 1 is further fixedly provided with a tube seat 28, the tube seat 28 is provided with a universal tube 29, the upper end of the universal tube 29 is fixedly provided with a sealing tube 30, the upper water return tube 13 is communicated with the sealing tube 30 through the universal tube 29, the outlet end 5 of the urea injector 2 can be inserted into the sealing tube 30, the sealing tube 29 enables the sealing tube 30 to be connected with the outlet end 5 of the urea injector 2 at various angles, the application range of the upper water return tube 13 is improved, the outlet end 5 of the urea injector 2 can be fixed through the universal tube 29, the end part of the sealing tube 30 is fixedly provided with a ring cover 31, the outlet end 5 of the urea injector 2 is inserted into the sealing tube 30 after penetrating through the ring cover 31, and the gap between the ring cover 31 and the outlet end 5 is in sealing connection through a rubber ring to prevent waste water entering the sealing tube 30 from leaking.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention.
Claims (7)
1. The utility model provides a urea injection system runner flushing device, includes workstation (1) and urea sprayer (2), be fixed with on workstation (1) and be used for placing support (3) of urea sprayer (2), urea sprayer (2) have entrance point (4) and exit end (5), its characterized in that: the urea spraying device further comprises a positioning seat (6), a cleaning mechanism (7) and a water return mechanism (8), wherein the positioning seat (6) is fixed at the bottom of the workbench (1), and the inlet end (4) of the urea spraying device (2) can be inserted into the positioning seat (6) and is in sealing connection with the positioning seat (6);
the cleaning mechanism (7) comprises a cleaning spray head (9), the cleaning spray head (9) is arranged at the center of the positioning seat (6), the cleaning spray head (9) can be inserted into the inlet end (4) of the urea injector (2), a water spray opening (10) is formed in the center of the cleaning spray head (9), the water spray opening (10) is communicated with a water pump through a water inlet pipe (11), and a water outlet (12) is formed in the edge of the cleaning spray head (9);
the water return mechanism (8) comprises an upper water return pipe (13) and a lower water return pipe (14), wherein the lower water return pipe (14) stretches into the positioning seat (6), when the urea injector (2) is inserted into the positioning seat (6), the urea injector (2), the water spraying port (10) and the lower water return pipe (14) are communicated through the positioning seat (6), and the upper water return pipe (13) is connected with the outlet end (5) of the urea injector (2).
2. The urea injection system flow channel flushing device of claim 1, wherein: the positioning seat (6) comprises a base (15), a seat cylinder (16), a sealing cover (17) and a plurality of clamping pieces (18), wherein the base (15) is fixedly connected with the workbench (1), the seat cylinder (16) is fixed on the base (15), the sealing cover (17) is fixed on the seat cylinder (16), the clamping pieces (18) are arranged in the seat cylinder (16) in a circular array, a through hole for the urea injector (2) to penetrate into the seat cylinder (16) is formed in the center of the sealing cover (17), a sealing ring is fixed in the through hole, and the sealing ring and the clamping pieces (18) are in butt with the outer wall of the urea injector (2).
3. The urea injection system flow channel flushing device of claim 2, wherein: the bottom of the cleaning spray head (9) is also fixed with a lifting frame (19).
4. The urea injection system flow channel flushing device of claim 1, wherein: still including setting up backpressure device (20) in positioning seat (6), backpressure device (20) are including return water seat (21), keep out board (22), spring (23) and end cap (24), set up horizontal groove (25) in return water seat (21), horizontal groove (25) with lower part wet return (14) intercommunication, keep out board (22) are fixed one end in horizontal groove (25) is used for the shutoff horizontal groove (25), end cap (24) slidable mounting is in horizontal groove (25), spring (23) butt is in keep out board (22) with between end cap (24).
5. The urea injection system flow channel flushing device of claim 4, wherein: the back pressure device (20) further comprises an adjusting rod (26), one end of the adjusting rod (26) penetrates through the retaining plate (22) and is in threaded connection with the retaining plate (22), the plug (24) is slidably sleeved on the adjusting rod (26), and the other end of the adjusting rod (26) extends out of the positioning seat (6) and is fixedly provided with an adjusting knob (27) at the end.
6. The urea injection system flow channel flushing device of claim 5, wherein: the urea spraying device is characterized in that a pipe seat (28) is further fixed on the workbench (1), a universal pipe (29) is installed on the pipe seat (28), a sealing cylinder (30) is fixed at the upper end of the universal pipe (29), the upper water return pipe (13) is communicated with the sealing cylinder (30) through the universal pipe (29), and the outlet end (5) of the urea spraying device (2) can be inserted into the sealing cylinder (30).
7. The urea injection system flow channel flushing device of claim 6, wherein: the end of the sealing cylinder (30) is fixedly provided with a ring cover (31), the outlet end (5) of the urea injector (2) penetrates through the ring cover (31) and then is inserted into the sealing cylinder (30), and the gap between the ring cover (31) and the outlet end (5) is in sealing connection through a rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310685520.XA CN116422655B (en) | 2023-06-12 | 2023-06-12 | Flow channel flushing device of urea injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310685520.XA CN116422655B (en) | 2023-06-12 | 2023-06-12 | Flow channel flushing device of urea injection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116422655A true CN116422655A (en) | 2023-07-14 |
| CN116422655B CN116422655B (en) | 2023-08-11 |
Family
ID=87080036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310685520.XA Active CN116422655B (en) | 2023-06-12 | 2023-06-12 | Flow channel flushing device of urea injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116422655B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166003C1 (en) * | 1999-08-12 | 2001-04-27 | Алексеев Андрей Николаевич | Method of manufacture of jet washing bath for washing parts from hangers |
| KR100651052B1 (en) * | 2005-12-20 | 2006-11-30 | 원용천 | Cleaning method of construction that use underground water tube well cleaning device and this |
| CN204034896U (en) * | 2014-06-20 | 2014-12-24 | 徐奇 | Embedded automatic cleaning mini sprinkler |
| CN107583917A (en) * | 2017-09-13 | 2018-01-16 | 岭澳核电有限公司 | Electricity generator stator coil clog removes integration scenario |
| CN213538815U (en) * | 2020-10-10 | 2021-06-25 | 陈坚平 | Dust removal heat sink for construction |
| CN213887450U (en) * | 2020-08-11 | 2021-08-06 | 东莞市盈森汽车电喷科技有限公司 | Cleaning device for inner flow channel of urea injector |
| CN218638027U (en) * | 2022-09-28 | 2023-03-17 | 国网冀北电力有限公司秦皇岛供电公司 | Cleaning equipment and cleaning mechanism |
| CN116037578A (en) * | 2023-04-03 | 2023-05-02 | 烟台盈德精密机械有限公司 | Cleaning device for inner runner of urea injector |
-
2023
- 2023-06-12 CN CN202310685520.XA patent/CN116422655B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166003C1 (en) * | 1999-08-12 | 2001-04-27 | Алексеев Андрей Николаевич | Method of manufacture of jet washing bath for washing parts from hangers |
| KR100651052B1 (en) * | 2005-12-20 | 2006-11-30 | 원용천 | Cleaning method of construction that use underground water tube well cleaning device and this |
| CN204034896U (en) * | 2014-06-20 | 2014-12-24 | 徐奇 | Embedded automatic cleaning mini sprinkler |
| CN107583917A (en) * | 2017-09-13 | 2018-01-16 | 岭澳核电有限公司 | Electricity generator stator coil clog removes integration scenario |
| CN213887450U (en) * | 2020-08-11 | 2021-08-06 | 东莞市盈森汽车电喷科技有限公司 | Cleaning device for inner flow channel of urea injector |
| CN213538815U (en) * | 2020-10-10 | 2021-06-25 | 陈坚平 | Dust removal heat sink for construction |
| CN218638027U (en) * | 2022-09-28 | 2023-03-17 | 国网冀北电力有限公司秦皇岛供电公司 | Cleaning equipment and cleaning mechanism |
| CN116037578A (en) * | 2023-04-03 | 2023-05-02 | 烟台盈德精密机械有限公司 | Cleaning device for inner runner of urea injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116422655B (en) | 2023-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3116954C2 (en) | Fuel injection valve for internal combustion engines | |
| DE3640497C2 (en) | ||
| DE3120060A1 (en) | FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES | |
| CN116422655B (en) | Flow channel flushing device of urea injection system | |
| EP2918741A1 (en) | Return flow block | |
| DE69100934T2 (en) | Toilet with low water consumption with pulsating flushing. | |
| CN211901104U (en) | Synthetic reaction special ejector that bleeds | |
| CN210704323U (en) | Adjustable front mixed abrasive jet device | |
| CN109736396B (en) | Closestool inner wall belt cleaning device | |
| DE10116714A1 (en) | Fuel injection valve for internal combustion engine, preferably for high jet speeds, has spray channels with cross-sections that expand after jet hole | |
| CN210657541U (en) | Open width rinsing machine | |
| CN212440790U (en) | SCR denitration device of gas turbine | |
| DE8915943U1 (en) | Device for sucking additives into a liquid flow | |
| DE3427336C2 (en) | Toilet flush valve | |
| DE3835143A1 (en) | Jet regulator for outflow fittings | |
| WO2009065679A1 (en) | Fuel injection device | |
| CN218873139U (en) | Scale cleaning device for oil well external pipeline | |
| DE102004001531B4 (en) | Device for adding a liquid additive to the water and foaming for a washing installation | |
| CN211249685U (en) | Abrasive material mixing ejector | |
| CN218531370U (en) | Mounting structure of shower head | |
| CN218692350U (en) | Test tube cleaning device for chemical engineering research | |
| CN221515019U (en) | Full-automatic cleaning valve | |
| CN217290316U (en) | Tectorial membrane sand leak protection sand keeps off sand and penetrates mouth | |
| CN220072019U (en) | Adjustable spray gun nozzle | |
| CN115321040B (en) | Petroleum storage tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |