Treatment device for standard tail gas

Abstract

The utility model discloses a treatment device for standard tail gas, which comprises an outer barrel body and an inner barrel body, and the inner barrel body is fixed in the center of the bottom of the outer barrel body; the funnel is fixed in the middle of the inner barrel body through a fixing rod, and an annular ventilation gap is reserved between the outer edge of the funnel and the inner wall of the inner barrel body. Tail gas is discharged into the gas inlet pipe, when the tail gas in a pipeline flows towards the inner barrel body, heat contained in the tail gas can be absorbed and transferred by circulating water in the outer barrel body through the gas inlet pipe, and the tail gas enters the inner barrel body and then flows to the position below the spraying head under the guidance of the outer side face of the funnel. The liquid sprayed by the spraying head is used for flushing treatment, waste water generated after flushing is completed is discharged out of the outer barrel body through the funnel and the second water outlet pipe, and tail gas enters the tail gas treatment medium layer along the vent hole and can completely flow into the exhaust pipe to be discharged into the atmosphere until the tail gas penetrates through the tail gas treatment medium layer.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a treatment device for standard gas tail gas. Background Technique

[0002] Tail gas refers to the waste gas discharged during the operation of motor vehicles or other equipment, generally containing components such as carbon monoxide, carbon dioxide and solid suspended particles. Some tail gases also contain sulfur oxides, which are highly harmful to the human body and will also have a profound impact on the environment. Especially solid suspended particles and sulfur oxides, the former will affect human respiration after being discharged, and the latter will promote the formation of acid rain after being discharged, affecting the growth of crops and forest trees in a large area.

[0003] In the existing tail gas treatment devices, generally, the solid suspended particles contained in the tail gas are separated by a filtering component, and then the gas components are discharged separately. This method can only partially treat the tail gas, and the high-temperature energy contained in the tail gas will still be normally discharged into the atmosphere and lost. Moreover, the filtering component must be replaced and cleaned after being used for a period of time, otherwise the treatment effect of the filtering component will be greatly reduced, which is very inconvenient. Content of the Utility Model

[0004] The purpose of the utility model is to provide a treatment device for standard gas tail gas in order to solve the technical problems mentioned in the above background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A treatment device for standard gas tail gas, comprising:

[0007] An outer barrel body and an inner barrel body, the outer barrel body and the inner barrel body are coaxially arranged, and the inner barrel body is fixed at the central position of the bottom of the outer barrel body;

[0008] A funnel, fixed in the middle of the inner barrel body through a fixing rod, and there is an annular ventilation gap between the outer edge of the funnel and the inner wall of the inner barrel body;

[0009] A spray head, arranged above the funnel, the spray head is fixedly connected with the inner barrel body, and a ventilation hole is opened in the middle of the spray head;

[0010] A tail gas treatment medium layer, arranged above the spray head, the tail gas treatment medium layer is fixedly connected with the inner barrel body;

[0011] An air inlet pipe, spirally wound outside the inner barrel body, and the air outlet end of the air inlet pipe is communicated with the bottom side of the inner barrel body.

[0012] As a further description of the above technical scheme:

[0013] The tail gas treatment medium layer includes a catalyst layer and an adsorbent layer. The catalyst layer is one of ammonia, urea, or a three-way catalyst, and the adsorbent layer is one of an activated carbon adsorber or a particulate trap.

[0014] As a further description of the above technical solution:

[0015] It further includes a barrel cover. The barrel cover is fixedly connected to the outer barrel body through a plurality of bolts. The intake end of the intake pipe passes through the barrel cover, and a exhaust pipe communicating with the inner barrel body is connected in the middle of the barrel cover.

[0016] As a further description of the above technical solution:

[0017] It further includes a second water inlet pipe, which is communicated with the spray head. The water inlet end of the second water inlet pipe passes through the barrel cover. The bottom of the inner barrel body is communicated with a second water outlet pipe passing through the outer barrel body, and the drain pipe of the funnel extends to the middle of the second water outlet pipe.

[0018] As a further description of the above technical solution:

[0019] It further includes a first water inlet pipe, which is fixedly communicated on one side of the barrel cover. The water outlet end of the first water inlet pipe extends to at least half of the height position of the outer barrel body, and the bottom side of the outer barrel body is communicated with a first water outlet pipe.

[0020] As a further description of the above technical solution:

[0021] An annular groove with a transition fit with the outer wall of the inner barrel body is provided at the bottom of the barrel cover.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0023] 1. In the present utility model, the tail gas is discharged into the intake pipe. During the process of the tail gas flowing towards the inner barrel body in the pipe, the heat contained therein will be absorbed and transferred by the water circulating inside the outer barrel body through the intake pipe. After the tail gas enters the inner barrel body, it flows to the lower part of the spray head under the guidance of the outer side of the funnel and is washed by the liquid sprayed by the spray head. The wastewater generated after washing is discharged from the outer barrel body through the funnel and the second water outlet pipe, while the tail gas enters the tail gas treatment medium layer along the ventilation holes and can completely flow to the exhaust pipe and be discharged into the atmosphere until it penetrates the tail gas treatment medium layer.

[0024] 2. In the present utility model, the tail gas treatment medium layer is a substance or material for purifying pollutants in the tail gas discharged from an engine or other combustion equipment, and removes harmful components in the tail gas, such as carbon monoxide, unburned hydrocarbons, nitrogen oxides, and particulate matter, through physical adsorption, chemical reactions, or catalytic conversion, etc. Description of the Drawings

[0025] Figure 1 The figure shows a schematic internal structure diagram of a treatment device for standard gas tail gas provided according to an embodiment of the present utility model;

[0026] Figure 2 The figure shows a schematic structural diagram of a funnel provided according to an embodiment of the present utility model;

[0027] Figure 3 The figure shows a schematic structural diagram of an inlet pipe provided according to an embodiment of the present utility model;

[0028] Figure 4 The figure shows a schematic three-dimensional structure diagram of a treatment device for standard gas tail gas provided according to an embodiment of the present utility model.

[0029] Legend description:

[0030] 1. Outer barrel body; 2. Inner barrel body; 3. First inlet pipe; 4. Inlet pipe; 5. Barrel cover; 6. Exhaust pipe; 7. Second inlet pipe; 8. Tail gas treatment medium layer; 9. Spray head; 10. Vent hole; 11. Bolt; 12. Funnel; 13. Fixed rod; 14. Second outlet pipe; 15. First outlet pipe. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0032] Please refer to Figures 1-4, the present utility model provides a technical solution: a treatment device for the tail gas of standard gas, including an outer barrel body 1, an inner barrel body 2 and a barrel cover 5. The outer barrel body 1 and the inner barrel body 2 are coaxially arranged. The inner barrel body 2 is fixed at the central position of the bottom of the outer barrel body 1. The barrel cover 5 is fixedly connected to the outer barrel body 1 through a plurality of bolts 11. An annular groove for transitional fit with the outer wall of the inner barrel body 2 is provided at the bottom of the barrel cover 5. A funnel 12 is fixed in the middle of the inner barrel body 2 through a fixing rod 13. An annular ventilation gap is left between the outer edge of the funnel 12 and the inner wall of the inner barrel body 2. A spray head 9 is arranged above the funnel 12 and is fixedly connected to the inner barrel body 2. After the spray head 9 sprays liquid to adsorb and separate solid particles in the waste gas, the generated waste water can be directly recycled through the second water outlet pipe 14. The process is fully automatic. The funnel 12 can effectively drain the waste water and avoid waste water leakage. An air vent hole 10 is provided in the middle of the spray head 9. The intake pipe 4 is spirally wound around the outer side of the inner barrel body 2. The air outlet end of the intake pipe 4 is communicated with the bottom side of the inner barrel body 2. The intake end of the intake pipe 4 passes through the barrel cover 5. A exhaust pipe 6 communicated with the inner barrel body 2 is connected in the middle of the barrel cover 5. A second water inlet pipe 7 is communicated with the spray head 9. The water inlet end of the second water inlet pipe 7 passes through the barrel cover 5. The bottom of the inner barrel body 2 is communicated with a second water outlet pipe 14 passing through the outer barrel body 1. The drain pipe of the funnel 12 extends to the middle of the second water outlet pipe 14. A first water inlet pipe 3 is fixedly communicated on one side of the barrel cover 5. The water outlet end of the first water inlet pipe 3 extends to at least half of the height position of the outer barrel body 1. The bottom side of the outer barrel body 1 is communicated with a first water outlet pipe 15. During the process of the tail gas being discharged along the intake pipe 4, the heat contained in the gas can heat the water flowing inside the outer barrel body 1 to achieve the purpose of heat conversion. The tail gas after heat transfer can then be normally discharged into the atmosphere through the inner barrel body 2.

[0033] Specifically, as Figure 1 shown, a tail gas treatment medium layer 8 is arranged above the spray head 9 and is fixedly connected to the inner barrel body 2. The tail gas treatment medium layer 8 is a substance or material for purifying pollutants in the tail gas discharged from an engine or other combustion equipment, and removes harmful components in the tail gas, such as carbon monoxide, unburned hydrocarbons, nitrogen oxides and particulate matter, through physical adsorption, chemical reaction or catalytic conversion, etc.

[0034] Specifically, the tail gas treatment medium layer 8 includes a catalyst layer and an adsorbent layer. The catalyst layer is one of ammonia, urea or a three-way catalyst. Using ammonia or urea as a reducing agent, nitrogen oxides are converted into nitrogen and water under the action of the catalyst. The three-way catalyst is widely used in gasoline engines and can reduce the emissions of carbon monoxide, unburned hydrocarbons and nitrogen oxides at the same time. The adsorbent layer is one of an activated carbon adsorber or a particulate trap. The activated carbon adsorber is used to adsorb and retain particulate matter and volatile organic compounds in the tail gas. The particulate trap is mainly used for diesel engines to capture and burn off particulate matter in the tail gas.

[0035] Furthermore, when selecting the tail gas treatment medium, factors such as the specific composition of the tail gas, emission standards, cost, and operating conditions need to be considered. For example, for diesel engines, a combination of a particulate trap and a selective catalytic reduction system is usually adopted to meet strict emission standards; while for gasoline engines, more reliance is placed on three-way catalysts.

[0036] Working principle: During use, first connect the water inlet end of the water pump to an external water pipe, connect the water outlet end of the water pump to the first water inlet pipe 3 through a pipeline, then seal the first water outlet pipe 15 and start the water pump. After the water level in the outer barrel 1 rises to a depth that submerges the air inlet pipe 4, stop sealing the first water outlet pipe 15, and connect the pipeline at the water inlet end of the water pump to the first water outlet pipe 15. Then start the water pump again. At this time, water is discharged from the first water outlet pipe 15 and flows into the outer barrel 1 through the first water inlet pipe 3 to form a cycle. Then, the tail gas is discharged into the air inlet pipe 4. During the process of the tail gas flowing towards the inner barrel 2 in the pipeline, the heat contained therein will be absorbed and transferred by the water circulating inside the outer barrel 1 through the air inlet pipe 4. After the tail gas enters the inner barrel 2, it flows to the lower part of the spray head 9 under the guidance of the outer side of the funnel 12 and is washed by the liquid sprayed by the spray head 9. The wastewater generated after the washing is discharged from the outer barrel 1 through the funnel 12 and the second water outlet pipe 14, while the tail gas flows into the tail gas treatment medium layer 8 along the ventilation holes 10. It is not until the tail gas penetrates the tail gas treatment medium layer 8 that it can completely flow to the exhaust pipe 8 and be discharged into the atmosphere.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A treatment device for standard gas tail gas, characterized in that: include: An outer barrel body (1) and an inner barrel body (2), wherein the outer barrel body (1) and the inner barrel body (2) are coaxially arranged, and the inner barrel body (2) is fixed at the central position of the bottom of the outer barrel body (1); The funnel (12) is fixed to the middle of the inner barrel body (2) via a fixing rod (13), and an annular ventilation gap is left between the outer edge of the funnel (12) and the inner wall of the inner barrel body (2); A spray head (9) is arranged above the funnel (12), the spray head (9) is fixedly connected to the inner barrel (2), and a vent hole (10) is provided in the middle of the spray head (9); An exhaust gas treatment medium layer (8) is arranged above the spray head (9), and the exhaust gas treatment medium layer (8) is fixedly connected to the inner barrel body (2); The air inlet pipe (4) is spirally wound outside the inner barrel body (2), and the air outlet end of the air inlet pipe (4) is communicated with the bottom side of the inner barrel body (2).

2. A treatment device for standard gas tail gas according to claim 1, characterized in that: The tail gas treatment medium layer (8) comprises a catalyst layer and an adsorbent layer, the catalyst layer is one of ammonia, urea or a three-way catalyst, and the adsorbent layer is one of an activated carbon adsorber or a particulate collector.

3. A processing device for standard gas tail gas according to claim 2, characterized in that: It also includes a barrel cover (5), which is fixedly connected to the outer barrel body (1) via a plurality of bolts (11), the air inlet end of the air inlet pipe (4) passes through the barrel cover (5), and the middle of the barrel cover (5) is connected to an exhaust pipe (6) that is in communication with the inner barrel body (2).

4. A processing device for standard gas tail gas according to claim 3, characterized in that: It also includes a second water inlet pipe (7), the second water inlet pipe (7) is connected to the spray head (9), the water inlet end of the second water inlet pipe (7) passes through the barrel cover (5), the bottom of the inner barrel body (2) is connected to a second water outlet pipe (14) passing through the outer barrel body (1), and the water outlet pipe of the funnel (12) extends to the middle of the second water outlet pipe (14).

5. A processing device for standard gas tail gas according to claim 4, characterized in that: It also comprises a first water inlet pipe (3), the first water inlet pipe (3) being fixedly connected to one side of the barrel cover (5), the water outlet end of the first water inlet pipe (3) extending to a position at least half the height of the outer barrel body (1), and the bottom side of the outer barrel body (1) being connected to a first water outlet pipe (15).

6. A treatment device for standard gas tail gas according to claim 5, characterized in that: The bottom of the barrel cover (5) is provided with an annular groove which transitionally matches the outer wall of the inner barrel body (2).

Images