CN112594040B

CN112594040B - SCR case convenient to dismantle and cross filter core

Info

Publication number: CN112594040B
Application number: CN202110222951.3A
Authority: CN
Inventors: 高培海; 白术勇; 岳广江
Original assignee: Shandong Atk Environmental Protection Technology Co ltd
Current assignee: Shandong Atk Environmental Protection Technology Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-05-14
Anticipated expiration: 2041-03-01
Also published as: CN112594040A

Abstract

The invention relates to the technical field of vehicle exhaust, and discloses an SCR (selective catalytic reduction) box convenient for disassembling a filter element, which comprises a processing main body, wherein a first air inlet is formed in the upper part of the processing main body, a feeding pipe is arranged at the lower part of the first air inlet, an air outlet is formed in the lower part of the processing main body, air inlet pipes are arranged on two sides of the first air inlet, second air inlets are formed in two ends of the processing main body, a connecting pipe is arranged between each second air inlet and each air inlet pipe, a rotating rod is arranged in the middle of the first air inlet, guide plates are rotatably connected to two sides of the rotating rod, a disassembling port is formed in the front side of the processing main body, a cover plate is rotatably connected to the upper part of the disassembling port, first fixing plates are arranged on two sides. The invention is suitable for the SCR box with the filter element convenient to disassemble, and the filter element in the device can be disassembled more conveniently by arranging the disassembling port which can be opened at the front side of the device.

Description

SCR case convenient to dismantle and cross filter core

Technical Field

The invention relates to the technical field of vehicle exhaust, in particular to an SCR (selective catalytic reduction) box with a filter element convenient to disassemble.

Background

SCR (selective Catalyst reduction) systems. For the exhaust gas purification of the national level four of diesel engines, the selective catalytic reduction (or conversion) is called because urea is used as a reducing agent and only NOx (NO and NO2, which have considerable toxicity and have much larger influence on human bodies than the PM2.5 which is currently concerned in the society) is treated.

Usually this kind of device is all installed in the discharge gate department of tail gas, because still contain a large amount of complete particulate matters of unburnt in the tail gas, lead to the impurity in the tail gas more, just this moment need carry out filtration treatment to tail gas, and the filter core dismantlement of ordinary filter equipment inside is comparatively loaded down with trivial details, consequently need improve the processing to current SCR case.

Disclosure of Invention

The invention provides an SCR box with a filter element convenient to disassemble, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a SCR case convenient to dismantle and filter core, is equipped with first air inlet including handling the main part, the upper portion of handling the main part, and the lower part of first air inlet is equipped with the inlet pipe, and the lower part of handling the main part is equipped with the gas outlet, the both sides of first air inlet are equipped with the intake pipe, and the both ends of handling the main part are equipped with the second air inlet, are equipped with the connecting pipe between second air inlet and the intake pipe, the middle part of first air inlet is equipped with the dwang, and the both sides of dwang are rotated and are connected the guide plate, the front side of handling the main part is equipped with dismantlement mouth, and the upper portion of dismantling the mouth is rotated and is connected the apron, be equipped with first fixed plate between handling main part and the second air inlet, one side that.

As a preferred technical scheme of the invention, the upper part of the disassembly port is provided with a rotating seat, the rotating seat is rotatably connected with the cover plate, and the inside of the rotating seat is provided with a reset bearing.

As a preferable technical scheme of the invention, one end of the guide rod, which is far away from the center of the processing main body, is detachably connected with the limiting head, and a spring is arranged between the filter element and the first fixing plate.

As a preferable technical solution of the present invention, a seal ring is provided between the filter element and the treatment main body.

As a preferable technical scheme of the invention, the rear side of the first air inlet is provided with a sliding chute, the middle part of the sliding chute is connected with a sliding plate in a sliding manner, the front side of the sliding plate is rotatably connected with one end of a supporting rod, and the other end of the supporting rod is rotatably connected with the middle part of the guide plate.

As a preferable technical scheme of the invention, the two sides of the sliding chute are provided with second fixed plates, the middle part of each second fixed plate is rotatably connected with the two sides of the screw rod, and the middle part of the screw rod is in threaded connection with the rear end of the sliding plate.

As a preferable technical scheme of the invention, a rotating wheel is arranged at the end part of the screw rod.

As a preferable technical scheme of the invention, air outlet pipes are arranged on two sides of the air outlet, and an exhaust pipe is arranged at the end part of each air outlet pipe.

As a preferable technical scheme of the invention, the exhaust pipe and the connecting pipe are both arc-shaped.

As a preferred technical scheme of the invention, the bottom of the air outlet is provided with a flow guide seat which is of a conical structure.

The invention has the following advantages:

1. the filter element in the device can be more conveniently disassembled by arranging the detachable opening on the front side of the device, so that the device is simpler to maintain;

2. the spring is arranged in the device to counteract the vibration of the filter element, and the vent holes are arranged to further reduce high-frequency noise, so that the noise reduction effect of the whole device is better;

3. the tail gas in the device flows in opposite directions, and a vortex is formed in the device, so that the tail gas and urea are mixed more completely, and the tail gas treatment effect is improved;

4. this device can realize the tail gas treatment work to different tail gas flows realization different states through the rotation of guide plate for guarantee that tail gas accomplishes reasonable processing procedure, obtain the filtration treatment of maximum effect, thereby make the tail gas treatment of final emission more complete.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an SCR box with a filter element convenient to detach.

Fig. 2 is a front view of an SCR tank with a filter element easily removed.

Fig. 3 is a schematic structural view of the inside of a treating body in an SCR box with a filter element easily removed.

Fig. 4 is a partially enlarged schematic view of a in fig. 3.

Fig. 5 is a front view of fig. 3.

Fig. 6 is a partially enlarged schematic view of B in fig. 3.

FIG. 7 is a schematic structural diagram of the rear side of a first air inlet in an SCR tank with a filter element convenient to detach.

Fig. 8 is a front view of fig. 7.

In the figure: 1. a processing body; 2. a first air inlet; 3. an air outlet; 4. an air inlet pipe; 5. an air outlet pipe; 6. a second air inlet; 7. a feed pipe; 8. a connecting pipe; 9. an exhaust pipe; 10. a flow guide seat; 11. a filter element; 12. a first fixing plate; 13. a guide bar; 14. a spring; 15. a limiting head; 16. air holes are formed; 17. a seal ring; 18. a chute; 19. a second fixing plate; 20. a sliding plate; 21. a screw rod; 22. a rotating wheel; 23. a support bar; 24. a baffle; 25. rotating the rod; 26. a disassembly port; 27. a cover plate; 28. and (6) rotating the seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-3, an SCR box convenient for detaching a filter element includes a processing main body 1, a first air inlet 2 is disposed at an upper portion of the processing main body 1, a feeding pipe 7 is disposed at a lower portion of the first air inlet 2, an air outlet 3 is disposed at a lower portion of the processing main body 1, a detaching port 26 is disposed at a front side of the processing main body 1, an upper portion of the detaching port 26 is rotatably connected to a cover plate 27, a rotating base 28 is disposed at an upper portion of the detaching port 26, the rotating base 28 is rotatably connected to the cover plate 27, and a reset bearing is disposed inside the rotating base 28. By providing the reset bearing, the cover plate 27 can be closely attached to the outside of the removal opening 26 when not subjected to an external force, so that the entire process main body 1 is in a sealed state.

Referring to fig. 3-5, the first air inlet 2 is provided with air inlet pipes 4 at two sides thereof, the treatment main body 1 is provided with second air inlets 6 at two ends thereof, a connecting pipe 8 is provided between the second air inlets 6 and the air inlet pipes 4, the air outlet pipes 5 are provided at two sides of the air outlet 3, and the end portions of the air outlet pipes 5 are provided with air outlet pipes 9. The exhaust pipe 9 and the connecting pipe 8 are both arc-shaped. Through all setting outlet duct 5 and connecting pipe 8 to the arc, can make the air current flow along curved pipeline, avoided the air current directly to strike with the pipeline, produce vibrations, thereby make the noise of device littleer, and all set up outlet duct 5 through the both sides at gas outlet 3, make the further reduction of the velocity of flow of air current, just also make the noise that the air current flows reduce, and set up two blast pipes 9 at the afterbody of vehicle, can the symmetry set up, also make the appearance of whole vehicle more pleasing to the eye.

Referring to fig. 6-8, a rotating rod 25 is disposed in the middle of the first air inlet 2, two sides of the rotating rod 25 are rotatably connected to a guide plate 24, a sliding slot 18 is disposed at the rear side of the first air inlet 2, the middle of the sliding slot 18 is slidably connected to a sliding plate 20, the front side of the sliding plate 20 is rotatably connected to one end of a support rod 23, and the other end of the support rod 23 is rotatably connected to the middle of the guide plate 24. And second fixing plates 19 are arranged on two sides of the sliding chute 18, the middle part of each second fixing plate 19 is rotatably connected with two sides of a screw rod 21, and the middle part of the screw rod 21 is in threaded connection with the rear end of a sliding plate 20. The end of the screw rod 21 is provided with a rotating wheel 22. The height of the sliding plate 20 can be adjusted by the screw rod 21, that is, the guide plate 24 is pushed to rotate by the support rod 23, so as to adjust the opening size of the passage through which the first gas inlet 2 directly communicates with the processing main body 1.

Referring to fig. 3-5, a first fixing plate 12 is disposed between the processing main body 1 and the second air inlet 6, a guide rod 13 is disposed on one side of the first fixing plate 12 away from the center of the processing main body 1, the middle of the guide rod 13 is slidably connected to the filter element 11, and an air hole 16 is disposed in the middle of the filter element 11. The guide rod 13 is far away from the center of the treatment main body 1, one end of the guide rod is detachably connected with a limiting head 15, a spring 14 is arranged between the filter element 11 and the first fixing plate 12, and a sealing ring 17 is arranged between the filter element 11 and the treatment main body 1. The sealing washer 17 can improve the laminating effect of filtering core 11 and processing main part 1, the machining precision of processing main part 1 inner chamber and filtering core 11 has been reduced, better filter effect has been realized, because the middle part of filtering core 11 is equipped with bleeder vent 16, the vibration friction of air current and little air vent, eliminate partial high frequency noise, the spring 14 has been set up between filtering core 11 and first fixed plate 12 simultaneously, make the vibrations of first fixed plate 12 itself offset through the deformation of spring 14, thereby further effect of realization amortization.

Example two

Referring to fig. 4, the other contents of the present embodiment are the same as those of the first embodiment, except that: the bottom of the air outlet 3 is provided with a flow guide seat 10, and the flow guide seat 10 is of a conical structure. Because the angle deflection of outlet duct 5 and gas outlet 3 is great, gaseous direct striking gas outlet 3 can produce great vibrations to produce the noise, consequently can set up conical water conservancy diversion seat 10 in the bottom of gas outlet 3, can make the air current can be more smooth go into two outlet ducts 5 from gas outlet 3, realized the effect of making an uproar.

In the implementation process of the invention, the first air inlet 2 is firstly connected with the tail gas exhaust device of the wheel, and the feeding pipe 7 is connected with the urea storage device, when the filter element 11 needs to be replaced, the cover plate 27 can be opened, the detachable limiting head 15 is taken down at the moment, the filter element 11 can be taken out from the detaching port 26, a new filter element 11 is inserted into the guide rod 13 again, and the cover plate 27 is closed, so that the replacement treatment work of the filter element 11 can be completed, the whole device does not need to be detached for replacement treatment, and the difficulty of the work is reduced.

When the device is in a low-power state, tail gas generated by a vehicle is small, at the moment, the rotating wheel 22 can be rotated, the rotating wheel 22 drives the screw rod 21 to rotate, the screw rod 21 drives the sliding plate 20 to move upwards, the sliding plate 20 pushes the two guide plates 24 to rotate around the rotating rod 25 through the supporting rod 23, so that the lower part of the first air inlet 2 is blocked by the two guide plates 24, at the moment, the tail gas enters the device through the first air inlet 2 and only enters the inside of the device through the two air inlet pipes 4 and the connecting pipe 8, all the tail gas needs to pass through the filter element 11, at the moment, the filtering effect of the tail gas is the highest, the feeding pipe 7 is opened, urea raw material enters the inside of the processing main body 1, at the moment, the tail gas entering from the two ends enters the central position of the processing main body, thereby make tail gas can be better mix with urea, improve the effect of tail gas treatment, the tail gas after accomplishing the processing can be through gas outlet 3 and 9 eduction gear outsides of blast pipe.

When the device is in a high-power state, the sliding plate 20 can be driven by the screw rod 21 to move downwards, so that the lower part of the first gas inlet 2 is conducted, and at this time, after the exhaust gas enters the first gas inlet 2, can enter the inside of the processing body 1 through the two connection pipes 8 and the bottom of the first gas inlet 2, thereby greatly improving the air intake efficiency, leading a large amount of tail gas to be processed, and since the gas flow passes through the feed pipe 7 when the exhaust gas directly enters the processing body 1 through the first gas inlet 2, the gas pressure at the end of the feed pipe 7 is reduced due to the gas flow passing through the end, thereby enabling the urea to enter the interior of the treating body 1 more quickly, and realizing the effect of flow regulation of the urea, therefore, a large amount of tail gas can be matched with a large amount of urea for treatment, and the final treatment effect is better.

The invention is suitable for an SCR box convenient for disassembling a filter element 11, the filter element 11 in the device can be disassembled more conveniently by arranging an openable disassembling port 26 at the front side of the device, so that the device is simpler to maintain, meanwhile, the spring 14 is arranged in the device to counteract the vibration of the filter element 11, and the vent holes 16 are arranged to further reduce high-frequency noise, thereby the silencing effect of the whole device is better, the tail gas flow direction in the device is opposite, a vortex is formed in the device, so that the tail gas and urea are more completely mixed, the tail gas treatment effect is improved, and the device can realize tail gas treatment work in different states aiming at different tail gas flows by rotating a guide plate 24, so that the maximum effect filtering treatment is obtained in the process of ensuring that the tail gas completes reasonable treatment, thereby leading the treatment of the finally discharged tail gas to be more complete.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The SCR box convenient for disassembling the filter element comprises a processing main body (1), wherein a first air inlet (2) is arranged on the upper part of the processing main body (1), an inlet pipe (7) is arranged on the lower part of the first air inlet (2), an air outlet (3) is arranged on the lower part of the processing main body (1), the SCR box is characterized in that air inlet pipes (4) are arranged on two sides of the first air inlet (2), second air inlets (6) are arranged at two ends of the processing main body (1), a connecting pipe (8) is arranged between the second air inlets (6) and the air inlet pipes (4), a rotating rod (25) is arranged in the middle of the first air inlet (2), guide plates (24) are rotatably connected on two sides of the rotating rod (25), a disassembling port (26) is arranged on the front side of the processing main body (1), a cover plate (27) is rotatably connected on the upper part of the disassembling port (26), a first fixing plate (12, one side of the first fixing plate (12) far away from the center of the processing main body (1) is provided with a guide rod (13), the middle part of the guide rod (13) is connected with the filter element (11) in a sliding way, and the middle part of the filter element (11) is provided with an air hole (16).

2. The SCR box convenient for disassembling the filter element as recited in claim 1, wherein a rotating seat (28) is provided at the upper part of the disassembling port (26), the rotating seat (28) is rotatably connected with the cover plate (27), and a reset bearing is provided inside the rotating seat (28).

3. The SCR box with the filter element convenient to detach as claimed in claim 1, wherein one end of the guide rod (13) far away from the first fixing plate (12) is detachably connected with a limiting head (15), and a spring (14) is arranged between the filter element (11) and the first fixing plate (12).

4. An SCR tank with a filter element easy to detach according to claim 1 or 3, characterized in that a sealing ring (17) is arranged between the filter element (11) and the treatment body (1).

5. The SCR box with the filter element convenient to detach as recited in claim 1, wherein the rear side of the first air inlet (2) is provided with a chute (18), the middle part of the chute (18) is slidably connected with a sliding plate (20), the front side of the sliding plate (20) is rotatably connected with one end of a supporting rod (23), and the other end of the supporting rod (23) is rotatably connected with the middle part of the guide plate (24).

6. The SCR box with the filter element convenient to detach as recited in claim 5, wherein, the two sides of the chute (18) are provided with second fixed plates (19), the middle part of the second fixed plates (19) is rotatably connected with the two sides of the screw rod (21), and the middle part of the screw rod (21) is in threaded connection with the rear end of the sliding plate (20).

7. SCR tank with filter element easy to detach according to claim 6, characterized in that the end of the screw rod (21) is provided with a rotating wheel (22).

8. The SCR box convenient for disassembling the filter element as recited in claim 1, wherein an air outlet pipe (5) is arranged at both sides of the air outlet (3), and an air outlet pipe (9) is arranged at the end part of the air outlet pipe (5).

9. The SCR box with the filter element convenient to detach as recited in claim 8, wherein the exhaust pipe (9) and the connecting pipe (8) are both arc-shaped.

10. The SCR box with the filter element convenient to detach as claimed in claim 8, wherein a flow guide seat (10) is arranged at the bottom of the air outlet (3), and the flow guide seat (10) is of a conical structure.