CN217681925U - Exhaust gas purification device based on metal DPF particle trap - Google Patents

Abstract

The utility model discloses an exhaust gas purification device based on a metal DPF particle catcher, which relates to the field of exhaust gas purification and comprises a filter body for purifying exhaust gas, a first tee joint, a second tee joint, a bypass pipe and a bypass valve; the filter body is provided with an air inlet and an air outlet; two openings of the first tee joint are respectively connected with the air inlet and the air inlet of the bypass pipe in a sealing way; two of the openings of the second tee joint are respectively connected with the air outlet and the air outlet of the bypass pipe in a sealing way; the bypass valve is arranged on the bypass pipe; the bypass valve may control the connection and disconnection of the bypass line. The utility model provides a pair of exhaust gas purification device is difficult for blockking up based on metal DPF particle trap to when blockking up, can easily clear up the inside accumulational carbon granule of filter.

Description

Exhaust gas purification device based on metal DPF particle catcher

Technical Field

The utility model relates to an exhaust purification field especially relates to an exhaust gas purification device based on metal DPF particle trap.

Background

The diesel engine is when the idling machine starts, because of diesel oil is complete combustion not, a large amount of waste gas carbon particles of blast pipe meeting discharge form a large amount of black cigarette, if these waste gases directly discharge to the air, can serious polluted environment, cause very big injury to the human body, for this reason, a ceramic carrier filter that utilizes cordierite to make has appeared on the market, and the carbon particles in the waste gas can be caught to the filter, carries out certain purification treatment, avoids waste gas direct discharge polluted environment. In order to solve the phenomenon of carbon particle accumulation and blockage in the filter, for example, an exhaust gas purification system based on a metal DPF particle trap with the application number of 201921078348.7 solves the blockage phenomenon by conducting the drainage of the exhaust gas through a bypass built in the filter. However, the built-in bypass occupies the space which is supposed to be purified by the purifier and is inverted at the end, if the internal bypass is blocked, the internal bypass is difficult to clean and can only be replaced integrally, and the service life is short.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a pair of exhaust gas purification device based on metal DPF particle trap for the filter is difficult for blockking up, and when blockking up, can easily clear up the inside accumulational granule of filter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a waste gas purification device based on a metal DPF particle catcher, which comprises a filter body for purifying waste gas, a first tee joint, a second tee joint, a bypass pipe and a bypass valve; the filter body is provided with an air inlet and an air outlet; two of the openings of the first tee joint are respectively connected with the air inlet and the air inlet of the bypass pipe in a sealing way; two of the openings of the second tee joint are respectively connected with the air outlet and the air outlet of the bypass pipe in a sealing way; the bypass valve is arranged on the bypass pipe; the bypass valve may control communication and disconnection of the bypass pipe.

The utility model provides a waste gas purification device based on metal DPF particle catcher, preferably, the filter body includes purification casing and a plurality of metal DPF particle catcher; the purification shell comprises a waste gas inlet dispersion cavity, a waste gas purification cavity and an exhaust collection cavity; the waste gas inlet dispersion cavity is communicated with the waste gas purification cavity; the exhaust collection cavity is communicated with the waste gas purification cavity; the air inlet is arranged on the waste gas inlet dispersion cavity; the air outlet is arranged on the exhaust collecting cavity; the metal DPF particle catcher is detachably arranged in the exhaust gas purification containing cavity; all of the metal DPF particle traps are arranged in parallel.

The utility model provides an exhaust gas purification device based on metal DPF particle catcher, preferably, also includes the staple bolt flange; the metal DPF particle catcher comprises a cylindrical filter core body and a first fixing part in a disc shape; the diameter of the first fixing part is larger than that of the filter core body; the filter element body is fixedly arranged on one plate surface of the first fixing part; the purification shell is provided with a plurality of insertion holes for placing the metal DPF particle catcher; the insertion opening extends towards the outer side of the purification shell to form a circular second fixing part; one end of the second fixing part, which is far away from the purifying shell, extends outwards with a ring-shaped bulge at the center of the insertion hole; the outer diameter of the annular bulge is equal to the diameter of the first fixing part; when the DPF is fixedly arranged on the purification shell, the first fixing part and the annular bulge are coaxially arranged; the first fixing part is tightly attached to the annular bulge; the hoop flange can clamp and fix the first fixing part and the second fixing part.

The utility model provides an exhaust gas purification device based on metal DPF particle catcher, preferably, also includes a plurality of handles; the handle is fixedly arranged on the first fixing part; the handle is fixedly arranged on one surface, which is not provided with the filter element body, of the first fixing part.

The utility model provides a waste gas purification device based on metal DPF particle trap, preferably, the filter core body is provided with a wave plate and a flat plate connecting structure; the wave plate and the flat plate are both made of metal fibers; the wave plate and the flat plate both have three-dimensional net-shaped porous structures; the bottom surface of the cylinder, which is not provided with the first fixing part, on the filter element body is provided with an exhaust hole; a baffle plate is arranged between the waste gas purification cavity and the exhaust collection cavity; the edge of the baffle is connected with the inner wall of the purification shell in a sealing way; the baffle is provided with a plurality of communicating holes; the exhaust hole of the metal DPF particle catcher is arranged right opposite to the communication hole; the bottom surface of the metal DPF particle catcher, which is provided with the exhaust hole, is attached to the baffle plate in a sealing manner; the exhaust hole is opposite to the communicating hole; the cylindrical side wall of the filter element body is arranged right opposite to the air inlet.

The utility model provides a waste gas purification device based on metal DPF particle catcher, preferably, still include the pressure detection module; the pressure detection module comprises a pressure detection sensor and a judgment module; the pressure detection sensor is fixedly arranged at the air inlet; the pressure detection sensor is electrically connected with the judgment module; the bypass valve is an electromagnetic valve; the judgment module is electrically connected with the bypass valve.

The technical scheme has the following advantages or beneficial effects:

the utility model discloses an exhaust gas purification device based on a metal DPF particle catcher, which relates to the field of exhaust gas purification and comprises a filter body for purifying exhaust gas, a first tee joint, a second tee joint, a bypass pipe and a bypass valve; the filter body is provided with an air inlet and an air outlet; two of the openings of the first tee joint are respectively connected with the air inlet and the air inlet of the bypass pipe in a sealing manner; two of the openings of the second tee joint are respectively connected with the air outlet and the air outlet of the bypass pipe in a sealing way; the bypass valve is arranged on the bypass pipe; the bypass valve may control communication and disconnection of the bypass pipe. The utility model provides a pair of exhaust gas purification device based on metal DPF particle trap is difficult for blockking up to when blockking up, can easily clear up the inside accumulational carbon granule of filter.

Drawings

The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is an overall structural view of an exhaust gas purification apparatus based on a metal DPF particulate trap according to an embodiment of the present invention.

Fig. 2 is a top cross-sectional view of an exhaust gas purification device based on a metal DPF particulate trap according to an embodiment of the present invention 1.

Fig. 3 is a sectional view showing a partial connection relationship of a metal DPF particulate trap of an exhaust gas purifying apparatus according to an embodiment of the present invention 1.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

As the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like appear, the indicated orientation or positional relationship is based on the orientation or positional relationship as shown in the figures, merely for convenience in describing the invention and to simplify the description, and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

The appearances of the terms first, second, and third, if any, are used for descriptive purposes only and are not intended to be limiting or imply relative importance.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The technical solutions in the embodiments of the present invention are described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1:

in order to solve the problem that the interior of a purifier is easy to block in the prior art, but a built-in bypass is difficult to clean once the purifier is blocked, the embodiment 1 of the utility model provides an exhaust gas purification device based on a metal DPF particle catcher, as shown in FIGS. 1-3, comprising a filter body 1 for purifying exhaust gas, a first tee joint 2, a second tee joint 3, a bypass pipe 4 and a bypass valve 5; the filter body 1 is provided with an air inlet 11 and an air outlet 12; two openings of the first tee joint 2 are respectively connected with the air inlet 11 and the air inlet of the bypass pipe 5 in a sealing way; two of the openings of the second tee joint 3 are respectively connected with the air outlet 12 and the air outlet of the by-pass pipe 5 in a sealing way; the bypass valve 5 is arranged on the bypass pipe 4; the bypass valve 5 can control the connection and disconnection of the bypass pipe 4.

When the waste gas purification device based on the metal DPF particle trap provided by the embodiment 1 of the utility model works, a pipeline in which waste gas flows is hermetically communicated with the first tee joint 2, the waste gas flows in from the first tee joint 2 and enters the filter body 1 through the air inlet 11 for purification, the purified waste gas flows in the second tee joint 3 through the air outlet 12, and the waste gas is discharged to the outside through the second tee joint 3; when the interior of the filter body 1 is blocked, the bypass pipe 4 can be opened by opening the bypass valve 5, and at the moment, the waste gas can directly flow out from the first tee joint 2 to the second tee joint 3 through the bypass pipe 4 and finally flows out; when the bypass pipe 4 is blocked due to long-time use, the bypass pipe 4 can be detached from the space between the first tee joint 2 and the second tee joint 3 to clean or replace the bypass pipe 4, the cleaning is more convenient relative to the built-in bypass, and when the first tee joint 2 or the second tee joint 3 are blocked, the cleaning and replacement can be performed through the detached cleaning, so that the equipment can continue to operate normally.

In order to further extend the lifetime of the purifier, the filter body 1 also needs to be cleaned, in this embodiment, the filter body 1 comprises a purifying housing 13 and a plurality of metal DPF particle traps 14; the purification housing 13 includes therein an exhaust gas inlet dispersion volume 131, an exhaust gas purification volume 132 and an exhaust gas collection volume 133; the waste gas inlet dispersion chamber 131 is communicated with the waste gas purification chamber 132; the exhaust collection chamber 133 is communicated with the exhaust purification chamber 132; the gas inlet 11 is disposed on the exhaust gas inlet dispersion volume 131; the air outlet 12 is arranged on the exhaust collection cavity 133; the metal DPF particulate trap 14 is detachably disposed in the exhaust gas purification container 132; all of the metallic DPF particulate traps 14 are arranged in parallel. Waste gas enters the waste gas dispersion containing cavity 131 from the gas inlet 11 because the pipe diameter of a waste gas pipeline is small, the waste gas dispersion containing cavity 131 is funnel-shaped, the thin-opening end is provided with the gas inlet 11 communicated with the first tee joint 2, the waste gas enters the waste gas purification containing cavity 132 after passing through the waste gas dispersion containing cavity 131, the metal DPF particle catcher 14 is arranged inside the waste gas purification containing cavity 132, the metal DPF particle catcher 14 can catch particles in the waste gas, the waste gas can be purified after passing through the metal DPF particle catcher 14, and finally the purified waste gas is collected through the exhaust gas collection containing cavity 133 and is discharged from the gas outlet 12; a plurality of metal DPF particle traps 14 are detachably arranged in the purification shell 13, so that the exhaust gas entering the filter body 1 can be purified; when the metal DPF 14 is contaminated with excessive particulates, the metal DPF 14 may be taken out, cleaned, and then returned to the filter body 1, thereby prolonging the service life of the device.

In order to enable the metal DPF particle trap 14 to be better assembled and disassembled on the purifying shell 13, in the embodiment, the metal DPF particle trap further comprises a hoop flange 6; the metal DPF particulate trap 14 includes a cylindrical filter core 141 and a disc-shaped first fixing portion 142; the diameter of the first fixing portion 142 is larger than that of the filter element body 141; the filter element body 141 is fixedly arranged on one plate surface of the first fixing part 142; the purification shell 13 is provided with a plurality of insertion holes 134 for placing the metal DPF particle catcher 14; an annular second fixing portion 135 extending from the insertion port 134 to the outside of the purge case 13; an annular protrusion 136 extends outwards from the center of the insertion hole 134 at one end of the second fixing portion 135 away from the purifying shell 13; the outer diameter of the annular protrusion 136 is equal to the diameter of the first fixing portion 142; when the DPF particulate trap 14 is fixed to the purifying case 13, the first fixing portion 142 is provided coaxially with the annular projection 136; the first fixing portion 142 is closely attached to the annular protrusion 136; the hoop flange 6 can clamp and fix the first fixing portion 142 and the second fixing portion 135. The hoop flange 6 is strip-shaped and can be connected end to end and tightened; the cross section of the hoop flange 6 along the strip is concave, and the hoop flange 6 gathers the annular protrusions 136 at the edges of the first fixing part 142 and the second fixing bar 135 into the concave shape of the hoop flange 6; the metal DPF particle catcher 14 can be fixed on the purifying shell 13 by contracting the hoop flange 6; compared with the mode of using the internal thread for connection, the hoop flange 6 can not block the internal thread due to the particles brought by the exhaust gas because the metal DPF particle catcher 14 and the purifying shell 13 are fixed outside, so that the metal DPF particle catcher 14 is clamped inside the purifying shell 13.

In order to facilitate the extraction of the metal DPF particulate trap 14 in exchange for its removal, in this embodiment, it further comprises a plurality of handles 7; the handle 7 is fixedly arranged on the first fixing part 142; the handle 7 is fixed to the first fixing portion 142 on the side where the filter element 141 is not provided. When installing metal DPF granule catcher 14 on purifying casing 13, the handle is located and purifies the casing 13 outside, through loosening staple bolt flange 6, draws handle 7, alright take out the cylindrical filter core 141 part of metal DPF granule catcher 14 inside to purifying casing 13 outside.

To further reduce particle accumulation inside the filter, in this embodiment, filter core 141 is provided with a wave plate and flat plate connection structure; the wave plate and the flat plate are both made of metal fibers; the wave plate and the flat plate both have three-dimensional net-shaped porous structures; the cylindrical bottom surface of the filter element body 141, which is not provided with the first fixing part 142, is provided with an exhaust hole 1411; a baffle plate is disposed between the exhaust gas purification chamber 132 and the exhaust collection chamber 133; the edge of the baffle is connected with the inner wall of the purifying shell 13 in a sealing way; the baffle is provided with a plurality of communicating holes; the exhaust hole 1411 of the metal DPF particle catcher is arranged right opposite to the communication hole; the bottom surface of the metal DPF particle catcher provided with the exhaust holes 1411 is attached to the baffle plate in a sealing way; the exhaust hole 1411 is arranged opposite to the communication hole; the cylindrical side wall of the filter element body 141 is disposed opposite to the air inlet 11. The exhaust gas coming from the inlet 11 enters the metal DPF particle trap 14 through the wave plate and the flat plate, and is discharged from the exhaust hole 1411; the exhaust gas after purification treatment is discharged without turning to the direction and is discharged in a linear motion track, and particles are prevented from being accumulated in the purification shell 13.

When the filter is blocked, the bypass valve needs to be specially opened, which is very troublesome, and the filter cannot be opened at a precise time, so that the purification effect is deteriorated when the filter is opened in advance, and a large amount of particles are accumulated when the filter is opened late; in order to open the bypass valve 5 precisely at the right time, in the present embodiment, a pressure detection module is further included; the pressure detection module comprises a pressure detection sensor and a judgment module; the pressure detection sensor is fixedly arranged at the air inlet; the pressure detection sensor is electrically connected with the judgment module; the bypass valve 5 is an electromagnetic valve; the judgment module is electrically connected with the bypass valve 5. The pressure detection sensor transmits a pressure signal to the judgment module, the judgment module judges whether the pressure is greater than a preset value or not, and if the pressure is greater than the preset value, the bypass valve 5 is controlled to open the bypass pipe 4, so that part of the waste gas can flow to the second tee joint from the position between the bypass pipes 4 to be discharged.

To sum up, the utility model discloses an exhaust gas purification device based on a metal DPF particle catcher, which relates to the field of exhaust gas purification and comprises a filter body for purifying exhaust gas, a first tee joint, a second tee joint, a bypass pipe and a bypass valve; the filter body is provided with an air inlet and an air outlet; two of the openings of the first tee joint are respectively connected with the air inlet and the air inlet of the bypass pipe in a sealing way; two of the openings of the second tee joint are respectively connected with the air outlet and the air outlet of the bypass pipe in a sealing way; the bypass valve is arranged on the bypass pipe; the bypass valve may control communication and disconnection of the bypass pipe. The utility model provides a pair of exhaust gas purification device is difficult for blockking up based on metal DPF particle trap to when blockking up, can easily clear up the inside accumulational carbon granule of filter.

The above only is the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures that are used in the content of the specification and the attached drawings of the present invention can be changed or directly or indirectly used in other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims (6)

1. An exhaust gas purification device based on a metal DPF particle trap is characterized by comprising a filter body for purifying exhaust gas, a first tee joint, a second tee joint, a bypass pipe and a bypass valve;

the filter body is provided with an air inlet and an air outlet;

two of the openings of the first tee joint are respectively connected with the air inlet and the air inlet of the bypass pipe in a sealing way;

two of the openings of the second tee joint are respectively connected with the air outlet and the air outlet of the bypass pipe in a sealing way;

the bypass valve is arranged on the bypass pipe; the bypass valve may control communication and disconnection of the bypass pipe.

2. The exhaust gas purifying apparatus based on a metal DPF particulate trap of claim 1, wherein the filter body includes a purifying case and a plurality of metal DPF particulate traps;

the purification shell comprises a waste gas inlet dispersion cavity, a waste gas purification cavity and an exhaust collection cavity; the waste gas inlet dispersion cavity is communicated with the waste gas purification cavity; the exhaust collection cavity is communicated with the waste gas purification cavity;

the air inlet is arranged on the waste gas inlet dispersion cavity; the air outlet is arranged on the exhaust collection cavity;

the metal DPF particle catcher is detachably arranged in the exhaust gas purification containing cavity; all the metal DPF particle traps are arranged in parallel.

3. The exhaust gas purification apparatus based on a metal DPF particulate trap of claim 2, further comprising a hoop flange;

the metal DPF particle catcher comprises a cylindrical filter core body and a first fixing part in a disc shape; the diameter of the first fixing part is larger than that of the filter core body; the filter element body is fixedly arranged on one plate surface of the first fixing part;

the purification shell is provided with a plurality of insertion holes for placing the metal DPF particle catcher; the insertion opening extends towards the outer side of the purification shell to form a circular second fixing part; one end of the second fixing part, which is far away from the purifying shell, extends outwards with a ring-shaped bulge from the center of the insertion hole; the outer diameter of the annular bulge is equal to the diameter of the first fixing part;

when the DPF is fixedly arranged on the purification shell, the first fixing part and the annular bulge are coaxially arranged; the first fixing part is closely attached to the annular bulge;

the hoop flange can clamp and fix the first fixing part and the second fixing part.

4. The exhaust gas purification apparatus based on a metal DPF particulate trap as set forth in claim 3, further comprising a plurality of handles; the handle is fixedly arranged on the first fixing part; the handle is fixedly arranged on the first fixing portion, and the surface, which is not provided with the filter element body, of the first fixing portion.

5. The exhaust gas purifying apparatus based on metal DPF particle trap as claimed in claim 3, wherein said filter core is provided with a wave plate and a flat plate connection structure; the wave plate and the flat plate are both made of metal fibers; the wave plate and the flat plate both have three-dimensional net-shaped porous structures;

the bottom surface of the cylinder, which is not provided with the first fixing part, on the filter element body is provided with an exhaust hole;

a baffle plate is arranged between the waste gas purification cavity and the exhaust collection cavity; the edge of the baffle is hermetically connected with the inner wall of the purification shell; the baffle is provided with a plurality of communicating holes; the exhaust hole of the metal DPF particle catcher is arranged right opposite to the communication hole; the bottom surface of the metal DPF particle catcher, which is provided with the exhaust hole, is attached to the baffle plate in a sealing manner; the exhaust hole is opposite to the communicating hole;

the cylindrical side wall of the filter element body is arranged right opposite to the air inlet.

6. The exhaust gas purification apparatus based on a metal DPF particulate trap as set forth in claim 1, further comprising a pressure detecting module; the pressure detection module comprises a pressure detection sensor and a judgment module; the pressure detection sensor is fixedly arranged at the air inlet; the pressure detection sensor is electrically connected with the judgment module; the bypass valve is an electromagnetic valve; the judgment module is electrically connected with the bypass valve.

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