CN219733492U

CN219733492U - Renewable tail gas treatment device of circular telegram

Info

Publication number: CN219733492U
Application number: CN202320321313.1U
Authority: CN
Inventors: 周巧燕; 孙平; 余勇
Original assignee: Ningbo Kaite Environmental Protection Technology Co ltd
Current assignee: Ningbo Kaite Environmental Protection Technology Co ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-09-22
Anticipated expiration: 2033-02-27

Abstract

The utility model provides an electric renewable tail gas treatment device, includes the casing, the inside appearance chamber of casing is divided into inlet unit and exhaust portion by tail gas treatment device, tail gas treatment device includes inlet unit and the processing chamber that is formed by urceolus and metal foam inner tube cooperation, be provided with the electric heating component who is connected with external power source electricity on the lateral wall of urceolus, through taking metal foam inner tube in the tail gas treatment device as leading, assist electric heating component, the heat conduction is faster, has avoided the ablation phenomenon that the temperature rises sharply and arouses; the space utilization rate can reach 50%, the trapping efficiency of the carbon smoke particles can be ensured to be more than 85%, the usable volume is about 1.5L, the space utilization rate is improved by about 10 times compared with that of a common DPF, and the condition of blocking the carbon smoke particles is prevented; meanwhile, the electric control mechanism is used for controlling the electric heating wire to work, and the electric control system is provided with the digital display thermometer and the thermocouple, so that the temperature of the heating system can be accurately controlled, the temperature is differentially raised, the treatment is carried out, and the regeneration mode is more flexible.

Description

Renewable tail gas treatment device of circular telegram

Technical Field

The utility model relates to the technical field of diesel engine tail gas treatment equipment for non-road mobile machinery, in particular to an electrified renewable tail gas treatment device.

Background

The DPF purifying technology is a relatively mature diesel engine tail gas treatment technology in the prior art, the DPF is a diesel engine particle catcher, the DPF is equivalent to a 'N95' mask on a diesel vehicle after being installed, and the traditional DPF can collect about 80% of particles.

The diesel particulate filter is generally used for about 3-7 days, accumulated soot can cause blockage, DPF needs to be detached for regeneration, and common repair factories need 2-3 days for treatment, and meanwhile, the cost is relatively high. In order to solve the problem, chinese patent application No. CN201210534472.6, the application name is a chinese patent application of a diesel engine exhaust aftertreatment temperature raising device and a temperature raising method, which discloses a diesel engine exhaust aftertreatment temperature raising device and a temperature raising method capable of raising the exhaust temperature of a diesel engine without an ignition system, and regenerating the diesel engine exhaust aftertreatment device in an ultralow temperature state below zero, wherein a heating rod is in a columnar structure and is divided into a wire end part, a heat conduction part and a high-temperature ignition head, the heat conduction part is in a diesel gasification cavity and is in sealing fit with end covers at two ends of the diesel gasification cavity, the wire end part and the high-temperature ignition head are located outside the end covers of the diesel gasification cavity, a heat accumulator is sleeved on the heat conduction part of the heating rod and is located in the diesel gasification cavity, one end of a combustion cavity is connected with the diesel gasification cavity and is covered on the ignition pipe cavity, the oil pipe part in the oil transportation pipe penetrates through the end covers of the diesel gasification cavity and is located in the diesel gasification cavity, and the heating part in the combustion cavity.

In order to ensure that the particulates trapped by the DPF can be completely cleaned by regeneration and avoid blockage, the oxidation-reduction temperature of the particulates is reduced to about 450 ℃ from 600-650 ℃, which is realized by continuously adding special additives, and besides greatly raising the use cost and complicating the system, the additives are potential hazards to safety, health and environment; meanwhile, the active regeneration system in the prior art is complex in design, the working state of the system is unstable, the temperature rises sharply when the DPF is regenerated, and the DPF is softened and ablation occurs when the temperature is higher than 1350 ℃.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the tail gas treatment device which has the advantages of simple structure, quick heat conduction, high temperature resistance and large utilization space and can be regenerated by electrifying.

In order to solve the technical problems, the utility model is solved by the following technical scheme: the utility model provides a renewable tail gas processing apparatus of circular telegram, includes the casing, offer on the casing with the inside appearance chamber of casing is linked together inlet channel and the passageway of giving vent to anger, the inside appearance chamber of casing is separated into inlet portion and exhaust portion by tail gas processing apparatus, tail gas processing apparatus includes the inlet chamber and the processing chamber that are formed by urceolus and metal foam inner tube cooperation, the inlet chamber with inlet portion UNICOM, the processing chamber with exhaust portion UNICOM, be provided with the electrical heating subassembly who is connected with the outside power electricity on the lateral wall of urceolus.

In the above technical scheme, the urceolus with the both ends of metal foam inner tube are provided with the baffle that admits air and go out the air baffle, the chamber that admits air is through be provided with the inlet port on the baffle that admits air with the portion of admitting air UNICOM, the processing chamber is through be provided with the venthole on the baffle that gives vent to anger with the portion of exhausting UNICOM.

In the above technical scheme, the outer edge of the air inlet baffle is in sealing fit with the inner cavity wall of the shell, so that the inner cavity of the shell is divided into the air inlet part and the air outlet part, two independent cavities are formed, and space utilization maximization is realized.

In the technical scheme, the size of the air inlet hole on the air inlet baffle is matched with the size of the opening of the metal foam inner cylinder.

In the technical scheme, the size of the air outlet baffle plate is matched with that of the outer cylinder, and the air outlet baffle plate is embedded in the opening at the end part of the outer cylinder.

In the above technical scheme, the air outlet hole is formed at a position corresponding to the arrangement position of the treatment cavity, so that the treatment cavity is communicated with the exhaust part.

In the technical scheme, one or more air outlet holes are formed, so that air outlet is facilitated.

In the technical scheme, the outer cylinder and the metal foam inner cylinder are coaxially sleeved, so that a space between the inner cavity wall of the outer cylinder and the outer cavity wall of the metal foam inner cylinder forms a treatment cavity, and the inner cavity of the metal foam inner cylinder forms an air inlet cavity.

In the above technical scheme, the electric heating assembly comprises an electric heating wire, wherein the electric heating wire is wound on the outer side of the outer cylinder, and two end parts of the electric heating wire extend from the inside of the shell to the outside of the shell to be electrically connected with the electric control mechanism.

In the above technical scheme, the electric control mechanism is electrically connected with the power supply.

Compared with the prior art, the utility model has the following beneficial effects: the metal foam inner cylinder in the tail gas treatment device is taken as a main guide, and an electric heating component is used as an auxiliary material, so that the melting point of foam metal is 1455 ℃, the heat conduction is faster, and the ablation phenomenon caused by the rapid temperature rise is avoided; the reasonable arrangement structure can enable the space utilization rate to reach 50%, the porosity of the metal foam inner cylinder is larger than that of the traditional DPF coating layer, the trapping efficiency of the carbon smoke particles can be guaranteed to be more than 85%, the usable volume is about 1.5L, the space utilization rate is improved by about 10 times compared with that of a common DPF, and the condition of blocking the carbon smoke particles is prevented; meanwhile, the electric control mechanism is used for controlling the electric heating wire to work, and the electric control system is provided with the digital display thermometer and the thermocouple, so that the temperature of the heating system can be accurately controlled, the temperature is differentially raised, the treatment is carried out, and the regeneration mode is more flexible.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic diagram of an explosive structure according to the present utility model.

FIG. 3 is a schematic axial cross-sectional view of the present utility model.

Fig. 4 is a schematic diagram of an explosion structure of the tail gas treatment device.

Fig. 5 is a schematic view of a connection structure according to the present utility model.

Detailed Description

The present utility model is described in further detail below with reference to the accompanying drawings.

The following description is presented to enable one of ordinary skill in the art to practice the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 5, an electrified renewable tail gas treatment device includes a housing 1, two ends of the housing are of a closed structure, and an inner cavity is formed into a closed structure, obviously, the form of the housing 1 is not limited to a cylinder, but also can be square or other shapes, depending on installation environments, the housing 1 conforming to the actual shapes is customized by taking the maximized space utilization as a guide, the tail gas treatment device 2 is arranged in the housing 1, and the collected tail gas enters the housing 1 from the air inlet channel 11 and is discharged from the air outlet channel 12 after passing through the tail gas treatment device 2, thus realizing the effect of tail gas treatment, and serving as an arrangement position of the air inlet channel 11 and the air outlet channel 12 can be various, not limited to the arrangement mode shown in the drawings, and can be that the air inlet channel 11 and the air outlet channel 12 are simultaneously positioned on the same horizontal line, or that the air inlet channel 11 and the air outlet channel 12 are positioned on two mutually perpendicular surfaces, or that the air inlet channel 11 and the air outlet channel 12 are positioned on the same vertical line, and the installation compatibility is large, and can be widely used in various occasions.

Obviously, the exhaust gas entering the housing 1 contains a large amount of soot particles, and after passing through the exhaust gas treatment device 2, the soot particles are gradually accumulated to cause the blockage of the exhaust gas treatment device, but the service performance of a vehicle or engineering machinery is affected, so that the assembly relationship between the exhaust gas treatment device 2 and the housing 1 is particularly important, and the exhaust gas treatment device can realize regeneration, namely, the exhaust gas treatment device 2 can clean the soot particles attached to the exhaust gas treatment device 2, and the treatment performance of the exhaust gas treatment device 2 is restored, and the exhaust gas treatment device has the following specific structure:

the exhaust gas treatment device 2 is disposed in the housing 1 and divides the internal cavity of the housing 1 into an air inlet portion 13 and an air outlet portion 14, and it is apparent that the cavity corresponding to the air inlet channel 11 is the air inlet portion 13, and the cavity corresponding to the air outlet channel 12 is the air outlet portion 14.

The tail gas treatment device 2 comprises an outer cylinder 21, a metal foam inner cylinder 22, an air inlet baffle 25, an air outlet baffle 26 and an electric heating component 20, wherein the outer cylinder 21 and the metal foam inner cylinder 22 are matched to form an air inlet cavity 23 and a treatment cavity 24, in particular, a treatment cavity 24 is formed by the space between the inner cavity wall of the outer cylinder 21 and the outer cavity wall of the metal foam inner cylinder 22, an air inlet cavity 23 is formed by the inner cavity wall of the metal foam inner cylinder 22, the air inlet cavity 23 is communicated with an air inlet part 13, the treatment cavity 24 is communicated with an air exhaust part 14, the outer cylinder 21 and the metal foam inner cylinder 22 are of structures with two open ends, the setting size of the outer cylinder 21 is larger than the setting size of the metal foam inner cylinder 22, when the outer cylinder 21 and the metal foam inner cylinder 22 adopt a cylindrical structure, the cylinder diameter of the outer cylinder 21 is larger than the cylinder diameter of the metal foam inner cylinder 22, the outer cylinder 21 and the metal foam inner cylinder 22 are sleeved together, and the coaxiality is set, in this way, a certain volume space is formed between the inner cavity wall of the outer cylinder 21 and the outer cavity wall of the metal foam inner cylinder 22, at this time, the air inlet baffle 25 is arranged on the end surfaces of the outer cylinder 21 and the metal foam inner cylinder at one end of the air inlet part 13, so that the air inlet baffle 25 seals one end of the volume space formed between the inner cavity wall of the outer cylinder 21 and the outer cavity wall of the metal foam inner cylinder 22, the outer edge of the air inlet baffle 25 abuts against the inner cavity wall of the shell 1 and is in sealing fit, the inner cavity of the shell 1 is divided into the air inlet part 13 and the air outlet part 14, of course, the air inlet hole 251 is formed in the middle part of the air inlet baffle 25, the aperture size of the air inlet hole 251 is matched with the cylinder diameter size of the metal foam inner cylinder 22, of course, the shape of the air inlet hole 251 is not limited to be round, and a proper practical use environment can be adopted, and tail gas enters the air inlet part 13 from the air inlet channel 11, filtered through the inner metal foam cylinder 22 by the re-entrant air inlet 251 and into the treatment chamber 24.

The air outlet baffle 26 is arranged on the other end face of the outer cylinder 21 and the metal foam inner cylinder at one end of the air inlet part 13, the air inlet baffle 25 seals the other end of the capacity space formed between the inner cavity wall of the outer cylinder 21 and the outer cavity wall of the metal foam inner cylinder 22, so that the capacity space is formed into a sealed area, the outer diameter of the air outlet baffle 26 and the inner diameter of the outer cylinder 21 are always the same, namely, the air outlet baffle 26 can be stably clamped at the port of the outer cylinder 21 just, the air outlet baffle 26 at the position corresponding to the treatment cavity 24 is provided with the air outlet holes 261, the tail gas entering the treatment cavity 24 can be discharged from the air outlet holes 261 to the air outlet part 14, the tail gas can not directly reach the air outlet part 14 from the metal foam inner cylinder 22, and one or more air outlet holes 261 can be arranged according to the air outlet quantity.

It is apparent that, in order to make the assembly of the metal foam inner cylinder 22 with the air inlet baffle 25 and the air outlet baffle 26 more stable, fitting mounting portions 221 for stable fitting with the air inlet baffle 25 and the air outlet baffle 26 are provided at both end portions of the metal foam inner cylinder 22.

The electric heating assembly 20 comprises an electric heating wire which is wound on the periphery of the outer cylinder 21, two end parts of the electric heating wire extend out of the shell 1 from the inside of the shell 1 and are electrically connected with the electric control mechanism 5, the electric control mechanism 5 is provided with a digital display thermometer and a thermocouple, the temperature of the electric heating assembly 20 can be accurately controlled, the temperature is differentially raised, the treatment and the regeneration mode are more flexible, and of course, the electric control mechanism 5 is electrically connected with the power supply 3.

Of course, the outer tube 21 and the metal foam inner tube 22 may have other shapes.

When the tail gas treatment device 2 needs to be regenerated, the electric heating assembly 20 is only required to be connected with the electric control mechanism 5, and a 220V power supply is plugged in. The electric control mechanism 5 is provided with a temperature control meter, and the regeneration can be started by pressing a switch, so that the temperature is automatically increased, and the regeneration is performed.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. The utility model provides a renewable tail gas processing apparatus of circular telegram, includes casing (1), offer on casing (1) with the inside appearance chamber of casing is linked together inlet channel (11) and air outlet channel (12), a serial communication port, the inside appearance chamber of casing (1) is separated into inlet portion (13) and exhaust portion (14) by tail gas processing apparatus (2), tail gas processing apparatus (2) include by urceolus (21) and metal foam inner tube (22) cooperation formation inlet chamber (23) and process chamber (24), inlet chamber (23) with inlet portion (13) UNICOM, process chamber (24) with exhaust portion (14) UNICOM, be provided with on the lateral wall of urceolus (21) with electric heating assembly (20) of external power source (3) electricity connection.

2. The electrified renewable tail gas treatment device according to claim 1, wherein two ends of the outer cylinder (21) and the metal foam inner cylinder (22) are provided with an air inlet baffle (25) and an air outlet baffle (26), the air inlet cavity (23) is communicated with the air inlet part (13) through an air inlet hole (251) arranged on the air inlet baffle (25), and the treatment cavity (24) is communicated with the air outlet part (14) through an air outlet hole (261) arranged on the air outlet baffle (26).

3. An energized renewable tail gas treatment device according to claim 2, characterized in that the outer edge of the air intake baffle (25) is in sealing engagement with the inner cavity wall of the housing (1) such that the inner cavity of the housing (1) is divided into the air intake portion (13) and the air exhaust portion (14).

4. An energized renewable exhaust gas treatment device according to claim 3, characterised in that the size of the inlet holes (251) in the inlet baffle plate (25) is matched to the size of the openings of the inner metal foam cylinder (22).

5. The device for treating energized renewable tail gas according to claim 2, characterized in that the size of the air outlet baffle plate (26) is matched with the size of the outer cylinder (21), and the air outlet baffle plate (26) is embedded at the opening of the end part of the outer cylinder (21).

6. The apparatus according to claim 5, wherein the air outlet hole (261) is provided at a position corresponding to the treatment chamber (24) so that the treatment chamber (24) communicates with the exhaust portion (14).

7. The energized renewable tail gas treatment device according to claim 6, characterized in that one or more of said gas outlet holes (261) are provided.

8. The device for treating the electrified renewable tail gas according to claim 1, wherein the outer cylinder (21) and the metal foam inner cylinder (22) are coaxially sleeved, so that a space between an inner cavity wall of the outer cylinder and an outer cavity wall of the metal foam inner cylinder forms a treatment cavity, and an inner cavity of the metal foam inner cylinder (22) forms an air inlet cavity (23).

9. The device for treating energized renewable exhaust gases according to claim 1, wherein the electric heating assembly (20) comprises an electric heating wire which is wound on the outside of the outer cylinder (21) and has its two ends extending from inside the housing (1) to outside the housing (1) and electrically connected to the electric control mechanism (5).

10. The energized renewable tail gas treatment device according to claim 9, characterized in that the electrical control mechanism (5) is electrically connected to an external power source (3).