A honeycomb ceramic substrate for tail gas purification

Abstract

The present invention belongs to the technical field of exhaust gas purification, and discloses an exhaust gas purification honeycomb ceramic carrier, including a honeycomb ceramic protective shell; a honeycomb ceramic body, movably installed inside the honeycomb ceramic protective shell; a slow cooling component, the slow cooling component includes a multi-stage cooling chamber, and the multi-stage cooling chamber is opened inside and outside the honeycomb ceramic protective shell. The above technical scheme sets a multi-stage cooling chamber. When the exhaust gas is filtered and purified through the honeycomb ceramic body, part of the heat passing through can be absorbed by the water inside the multi-stage cooling chamber. Since the multi-stage cooling chamber is designed in a graded manner, the cavity becomes larger successively, and the water inside becomes more successively. Since the amount of water will affect the amount of heat absorbed, the amount of heat passing through the water will increase successively, and the absorption amount will be increased. Finally, the heat received by the honeycomb ceramic is subjected to graded and slow cooling treatment, avoiding sudden hot and cold switching, which leads to rupture, and greatly improving the service life.

Description

Technical Field

[0001] The invention belongs to the technical field of tail gas purification, in particular to a tail gas purification honeycomb ceramic carrier. Background Art

[0002] Exhaust gas purification is an important technology in the field of environmental protection. It mainly treats the exhaust gas emitted by internal combustion engines to reduce the pollution of the environment by harmful substances therein. A common exhaust gas purification method is to add an exhaust gas purification honeycomb ceramic carrier to the exhaust gas pipeline. The exhaust gas purification honeycomb ceramic carrier is a ceramic material with a honeycomb structure, which is widely used in automobile exhaust gas purification systems. The exhaust gas purification honeycomb ceramic carrier is mainly made of high temperature resistant and corrosion resistant ceramic materials such as cordierite, and its main function is to provide an efficient contact area for the reaction between harmful gases in the exhaust gas and the catalyst, thereby accelerating the catalytic reaction process and converting harmful gases into harmless gases and discharging them into the atmosphere.

[0003] When the existing exhaust gas purification honeycomb ceramic carrier treats the exhaust gas, the exhaust gas carries a high amount of heat, which will affect the purification and filtration effect of the honeycomb ceramic, so it needs to be cooled. However, due to the brittleness of the honeycomb ceramic, its resistance to thermal shock is poor. Sudden high temperature and cooling will cause it to crack and be damaged, reducing its service life. Therefore, it needs to be improved. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a honeycomb ceramic carrier for tail gas purification, which has the advantage of slowly cooling the heat received by the honeycomb ceramic.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust gas purification honeycomb ceramic carrier, comprising a honeycomb ceramic protective shell; a honeycomb ceramic body, movably installed inside the honeycomb ceramic protective shell; a slow cooling component, the slow cooling component comprising a multi-stage cooling chamber, the multi-stage cooling chamber is opened on the inside and outside of the honeycomb ceramic protective shell, the internal movably sleeve of the multi-stage cooling chamber is provided with a rotary cooling impeller, the rotary cooling impeller is arranged in plurality, and a transmission component is arranged at the inner ends of the plurality of rotary cooling impellers.

[0006] Preferably, a protective shell cover plate is movably mounted on one end of the honeycomb ceramic protective shell, and a plurality of screws are arranged inside the protective shell cover plate.

[0007] Preferably, a plurality of the multi-stage cooling chambers are provided, and the inner cavity space sizes of the plurality of multi-stage cooling chambers increase successively.

[0008] Preferably, the transmission assembly comprises a first transmission block, a linkage block and a second transmission block;

[0009] The first transmission block and the second transmission block are respectively arranged at the inner ends of a plurality of rotary cooling impellers, and the linkage block is movably sleeved between the first transmission block and the second transmission block.

[0010] Preferably, air storage cylinders are provided on both sides of the other end of the honeycomb ceramic protective shell, and a pneumatic component is provided at one end of the inner cavity of the air storage cylinder.

[0011] Preferably, the pneumatic assembly includes a pneumatic fan, a linkage gear and a driven gear;

[0012] The pneumatic fan is movably sleeved on the inner wall of the inner end of the air storage cylinder body, the linkage gear is movably sleeved on the inside of the air storage cylinder body and is located on the outside of the linkage gear, the driven gear is fixedly sleeved on the surface of the other end of the rotary cooling impeller and is located on the outside of the linkage gear, and the surfaces of the pneumatic fan, the linkage gear and the driven gear are respectively meshed with each other.

[0013] Preferably, a one-way valve group located on one side of the pneumatic fan is arranged inside the air storage cylinder, and the one-way valve group includes a first one-way valve column and a first connecting spring;

[0014] The first one-way valve column is movably installed in the inner cavity of the air storage cylinder and is located on one side of the pneumatic fan. One end of the first one-way valve column is elastically connected to the inner wall of the air storage cylinder through a first connecting spring.

[0015] Preferably, the inner cavity of the air storage cylinder is provided with an air pushing assembly located on one side of the first connecting spring, and the air pushing assembly includes an air pushing plate and a power spring;

[0016] The air pushing plate is movably mounted on the inner wall of the air pushing component and is located on one side of the first connecting spring. The power spring is fixedly connected to one side of the air pushing plate.

[0017] Preferably, the other end of the power spring is fixedly connected to the inner wall of the air storage cylinder.

[0018] Preferably, the gas storage cylinder is provided with an exhaust valve group located outside the first one-way valve column, and the exhaust valve group includes an exhaust channel, a second one-way valve column and a second connecting spring;

[0019] The exhaust channel is opened inside the air storage cylinder and is located outside the first one-way valve column. The second one-way valve column is movably installed in the inner cavity of the exhaust channel and is located outside the other end of the first one-way valve column. One end of the second one-way valve column is elastically connected to the inner wall of the exhaust channel through a second connecting spring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The above technical solution sets up a multi-stage cooling chamber. When the exhaust gas is filtered and purified through the honeycomb ceramic body, part of the heat passing through can be absorbed by the water inside the multi-stage cooling chamber. Since the multi-stage cooling chamber is designed in a graded manner, the cavity becomes larger successively, and the water inside becomes more successively. Since the amount of water will affect the amount of heat absorbed, the amount of heat passing through the water will increase successively, thereby increasing the absorption amount. Finally, the heat received by the honeycomb ceramic is subjected to graded and slow cooling treatment, avoiding sudden hot and cold switching that causes rupture, and greatly improving the service life.

[0022] The present invention sets a pneumatic fan and a driven gear. When the gas is filtered through the pneumatic fan, the pneumatic fan will be blown to rotate. Due to the meshing relationship between the pneumatic fan and the linked gear surface, the linked gear can be driven to rotate. At the same time, due to the meshing relationship between the linked gear and the driven gear surface, the driven gear can be driven to rotate, so that the rotary cooling impeller at the rear end is rotated. At this time, due to the relationship between the inner end surfaces of the multiple rotary cooling impellers being connected through the transmission component, the multiple rotary cooling impellers are finally rotated inside the multi-stage cooling chamber to drive water to flow, so as to greatly improve the efficiency of water absorbing heat inside the multi-stage cooling chamber.

[0023] The present invention sets a power spring and a second one-way valve column. When the pneumatic fan rotates, the gas will push the first one-way valve column backward to the front of the push plate and push the push plate backward. When the pneumatic fan stops rotating, the elastic force of the first connecting spring will be released to push the first one-way valve column to reset, thereby releasing the blockage on the rear end of the exhaust channel. Then the power spring will push the push plate to drive the gas in the front to quickly pass through the exhaust channel to push the second one-way valve column to open, and then blow to the back of the pneumatic fan, so that the pneumatic fan can drive the rotating cooling impeller and the transmission assembly to rotate rapidly as a whole to achieve rapid rotation and cooling treatment of the water flow inside the multi-stage cooling chamber, thereby greatly improving the cooling speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the back side of the present invention;

[0026] Figure 3 It is a schematic diagram of a top cross-sectional structure of the present invention;

[0027] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 5 It is a structural schematic diagram of the rotary cooling impeller of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the local enlarged structure at B in the middle;

[0030] Figure 7 It is a cross-sectional structural schematic diagram of the pneumatic component of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the first connecting spring of the present invention.

[0032] In the figure: 1. honeycomb ceramic protective shell; 2. honeycomb ceramic body; 3. protective shell cover; 4. slow cooling component; 401. multi-stage cooling chamber; 402. rotary cooling impeller; 403. transmission component; 4031. first transmission block; 4032. linkage block; 4033. second transmission block; 5. air storage cylinder; 6. pneumatic component; 601. pneumatic fan; 602. linkage gear; 603. driven gear; 7. one-way valve group; 701. first one-way valve column; 702. first connecting spring; 8. air pushing component; 801. air pushing plate; 802. power spring; 9. exhaust valve group; 901. exhaust channel; 902. second one-way valve column; 903. second connecting spring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 8 As shown, the present invention provides a honeycomb ceramic carrier for exhaust gas purification, including a honeycomb ceramic protective shell 1; a honeycomb ceramic body 2, which is movably installed inside the honeycomb ceramic protective shell 1; a slow cooling component 4, which includes a multi-stage cooling chamber 401, and the multi-stage cooling chamber 401 is opened on the inside and outside of the honeycomb ceramic protective shell 1. The interior of the multi-stage cooling chamber 401 is movably sleeved with a rotary cooling impeller 402, and the rotary cooling impeller 402 is arranged in plurality, and a transmission component 403 is arranged at the inner end of the plurality of rotary cooling impellers 402.

[0035] When the high-temperature exhaust gas is filtered and purified through the honeycomb ceramic body 2 , the high-temperature exhaust gas passing through can be subjected to graded and slow cooling treatment in sequence due to the design of the multi-stage cooling chamber 401 .

[0036] like Figure 1 As shown, a protective shell cover plate 3 is movably mounted on one end of the honeycomb ceramic protective shell 1, and a plurality of screws are arranged inside the protective shell cover plate 3.

[0037] The above scheme is adopted: by providing a protective shell cover plate 3, the protective shell cover plate 3 can be fixedly installed on the front of the honeycomb ceramic protective shell 1 and the honeycomb ceramic body 2 through multiple screw designs, so that the honeycomb ceramic protective shell 1 can be smoothly fixedly covered on the surface of the honeycomb ceramic body 2 for protection.

[0038] like Figure 3 As shown, a plurality of multi-stage cooling chambers 401 are provided, and the inner cavity space sizes of the plurality of multi-stage cooling chambers 401 increase in sequence.

[0039] The above scheme is adopted: by setting up a multi-stage cooling chamber 401, since the amount of water directly affects the amount of heat absorbed, when the high-temperature exhaust gas passes through the multi-stage cooling chamber 401 with increasing inner cavity size in sequence, the amount of water will increase and the amount of heat absorbed will be greatly increased, thereby achieving slow cooling of the heat.

[0040] like Figure 6 As shown, the transmission assembly 403 includes a first transmission block 4031, a linkage block 4032 and a second transmission block 4033;

[0041] The first transmission block 4031 and the second transmission block 4033 are respectively disposed at the inner ends of the plurality of rotary cooling impellers 402 , and the linkage block 4032 is movably sleeved between the first transmission block 4031 and the second transmission block 4033 .

[0042] The above scheme is adopted: by providing a second transmission block 4033, when the rotary cooling impeller 402 at the rear end rotates, another rotary cooling impeller 402 can be rotated through the movable socket relationship between the first transmission block 4031, the linkage block 4032 and the second transmission block 4033, and so on, and finally multiple rotary cooling impellers 402 can be driven to rotate synchronously.

[0043] like Figure 7 As shown, air storage cylinders 5 are arranged on both sides of the other end of the honeycomb ceramic protective shell 1, and a pneumatic component 6 is arranged at one end of the inner cavity of the air storage cylinder 5.

[0044] like Figure 7 As shown, the pneumatic assembly 6 includes a pneumatic fan 601, a linkage gear 602 and a driven gear 603;

[0045] The pneumatic fan 601 is movably sleeved on the inner wall of the inner end of the air storage cylinder 5, the linkage gear 602 is movably sleeved inside the air storage cylinder 5 and is located on the outside of the linkage gear 602, and the driven gear 603 is fixedly sleeved on the surface of the other end of the rotary cooling impeller 402 and is located on the outside of the linkage gear 602. The surfaces of the pneumatic fan 601, the linkage gear 602 and the driven gear 603 are respectively meshed with each other.

[0046] The above scheme is adopted: by providing a pneumatic fan 601, when the filtered gas passes through the pneumatic fan 601, the pneumatic fan 601 can be driven to rotate, so as to drive the linkage gear 602 to drive the driven gear 603 to rotate synchronously, and finally the rotary cooling impeller 402 and the transmission assembly 403 can be driven to rotate as a whole, so that the rotary cooling impeller 402 drives the water inside the multi-stage cooling chamber 401 to flow, thereby improving the heat absorption efficiency of the high-temperature exhaust gas.

[0047] like Figure 3 and Figure 8 As shown, the inside of the air storage cylinder 5 is provided with a one-way valve group 7 located on one side of the pneumatic fan 601, and the one-way valve group 7 includes a first one-way valve column 701 and a first connecting spring 702;

[0048] The first one-way valve column 701 is movably installed in the inner cavity of the air storage cylinder 5 and is located on one side of the pneumatic fan 601 . One end of the first one-way valve column 701 is elastically connected to the inner wall of the air storage cylinder 5 through the first connecting spring 702 .

[0049] The above scheme is adopted: by providing a first connecting spring 702, when there is gas at the front end of the first one-way valve column 701, the first one-way valve column 701 can be pushed backward to enter the inner cavity of the gas storage cylinder 5, and due to the elastic force of the first connecting spring 702, the first one-way valve column 701 can be pushed forward, and the gas cannot be discharged, thereby achieving the purpose of one-way air intake.

[0050] like Figure 3 and Figure 8 As shown, the inner cavity of the gas storage cylinder 5 is provided with a gas pushing assembly 8 located on one side of the first connecting spring 702, and the gas pushing assembly 8 includes a gas pushing plate 801 and a power spring 802;

[0051] The air pushing plate 801 is movably mounted on the inner wall of the air pushing assembly 8 and is located on one side of the first connecting spring 702 . The power spring 802 is fixedly connected to one side of the air pushing plate 801 .

[0052] The above scheme is adopted: by providing an air pushing plate 801, when gas pushes the first one-way valve column 701 backward, it will enter the cavity between the air storage cylinder body 5 and the air pushing plate 801, so that the air pushing plate 801 moves backward and slowly accumulates.

[0053] like Figure 3 As shown, the other end of the power spring 802 is fixedly connected to the inner wall of the air storage cylinder 5.

[0054] The above solution is adopted: by providing a power spring 802, when the gas stops entering the cavity between the air pushing plate 801 and the air storage cylinder body 5, the elastic force of the power spring 802 will be released, pushing the air pushing plate 801 to reset forward, and the gas is pushed away.

[0055] like Figure 4 As shown, the interior of the gas storage cylinder 5 is provided with an exhaust valve assembly 9 located outside the first one-way valve column 701, and the exhaust valve assembly 9 includes an exhaust channel 901, a second one-way valve column 902 and a second connecting spring 903;

[0056] The exhaust channel 901 is opened inside the air storage cylinder 5 and is located on the outside of the first one-way valve column 701. The second one-way valve column 902 is movably installed in the inner cavity of the exhaust channel 901 and is located on the outside of the other end of the first one-way valve column 701. One end of the second one-way valve column 902 is elastically connected to the inner wall of the exhaust channel 901 through a second connecting spring 903.

[0057] The above scheme is adopted: by providing an exhaust channel 901, when the first one-way valve column 701 moves backward as a whole, the rear end of the exhaust channel 901 will be blocked to prevent the gas in the cavity between the air pushing plate 801 and the air storage cylinder 5 from escaping, and when the first one-way valve column 701 is reset forward as a whole, the power spring 802 will push the air pushing plate 801 to reset forward, and push the gas into the exhaust channel 901, and then push the exhaust channel 901 to open forward, and finally realize that the gas is quickly blown to the back of the pneumatic fan 601 through the exhaust channel 901, thereby driving the pneumatic fan 601 to rotate rapidly in the opposite direction, so as to drive the linkage gear 602 to drive the driven gear 603, the rotary cooling impeller 402 and the transmission assembly 403 to rotate rapidly as a whole, and the water in the multi-stage cooling chamber 401 is quickly cooled by the rapid rotation of the rotary cooling impeller 402.

[0058] The working principle and use process of the present invention:

[0059] First, when the high-temperature exhaust gas is filtered and purified through the honeycomb ceramic body 2, the high-temperature gas will pass through a plurality of multi-stage cooling chambers 401 in sequence for slow cooling treatment.

[0060] When the gas is filtered and discharged from the rear of the honeycomb ceramic body 2, part of the gas will blow toward the pneumatic fan 601 and drive it to rotate. Due to the meshing relationship between the surfaces of the pneumatic fan 601, the linkage gear 602 and the driven gear 603, the linkage gear 602 can drive the driven gear 603 to rotate, thereby driving the rear end rotary cooling impeller 402 to rotate. At this time, the rear end rotary cooling impeller 402 drives the inner end linkage block 4032 to rotate, and then drives the first transmission block 4031 and another rotary cooling impeller 402 to rotate through the linkage block 4032, and finally makes the multiple rotary cooling impellers 402 and the transmission assembly 403 rotate as a whole. The rotation of the rotary cooling impeller 402 can drive the water inside the multi-stage cooling chamber 401 to flow and perform efficient heat absorption treatment.

[0061] At the same time, due to the rotation of the pneumatic fan 601, the gas will be guided to the front of the first one-way valve column 701 and pushed backward, so that it can smoothly enter the inner cavity of the gas storage cylinder 5 for storage, and will push the entire push plate 801 backward, while squeezing the power spring 802, and through the first one-way valve column 701 backward, the rear end inlet of the exhaust channel 901 will be blocked to prevent the gas in the inner cavity of the gas storage cylinder 5 from entering the exhaust channel 901 and causing gas loss. When the exhaust gas is stopped from being filtered, since there is no gas passing in front of the pneumatic fan 601, the pneumatic fan 601 stops rotating at this time, so that the first connection The release of the elastic force of spring 702 pushes the first one-way valve column 701 to reset forward, thereby successfully releasing the blocking effect on the rear end of the exhaust groove 901. After that, the elastic force of the power spring 802 will also be smoothly released to push the push plate 801 forward, so that the gas in front of the push plate 801 will quickly pass through the exhaust groove 901 and push the second one-way valve column 902 to open, and finally blow quickly to the back of the pneumatic fan 601, so that the linkage gear 602 drives the driven gear 603, the multi-stage cooling chamber 401 and the transmission assembly 403 to rotate quickly as a whole to cool the water flow inside the multi-stage cooling chamber 401, so as to facilitate the subsequent cooling operation.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A honeycomb ceramic substrate for tail gas purification, characterized in that: It comprises a honeycomb ceramic protective shell (1); A honeycomb ceramic body (2) is movably mounted inside the honeycomb ceramic protective shell (1); A slow cooling component (4) comprises a multi-stage cooling chamber (401), the multi-stage cooling chamber (401) is opened inside and outside the honeycomb ceramic protective shell (1), a rotary cooling impeller (402) is movably sleeved inside the multi-stage cooling chamber (401), a plurality of rotary cooling impellers (402) are provided, and a transmission component (403) is provided at the inner ends of the plurality of rotary cooling impellers (402).

2. The tail gas purification honeycomb ceramic substrate according to claim 1, characterized in that: A protective shell cover plate (3) is movably mounted on one end of the honeycomb ceramic protective shell (1), and a plurality of screws are arranged inside the protective shell cover plate (3).

3. The tail gas purification honeycomb ceramic substrate according to claim 1, characterized in that: The multi-stage cooling chamber (401) is provided with a plurality of them, and the sizes of the inner chamber spaces of the plurality of multi-stage cooling chambers (401) increase in sequence.

4. The tail gas purification honeycomb ceramic substrate according to claim 1, characterized in that: The transmission assembly (403) comprises a first transmission block (4031), a linkage block (4032) and a second transmission block (4033); The first transmission block (4031) and the second transmission block (4033) are respectively arranged at the inner ends of the plurality of rotary cooling impellers (402), and the linkage block (4032) is movably sleeved between the first transmission block (4031) and the second transmission block (4033).

5. The tail gas purification honeycomb ceramic substrate according to claim 1, characterized in that: An air storage cylinder (5) is arranged on both sides of the other end of the honeycomb ceramic protective shell (1), and a pneumatic component (6) is arranged at one end of the inner cavity of the air storage cylinder (5).

6. The tail gas purification honeycomb ceramic substrate according to claim 5, characterized in that: The pneumatic assembly (6) comprises a pneumatic fan (601), a linkage gear (602) and a driven gear (603); The pneumatic fan (601) is movably sleeved on the inner wall of the inner end of the air storage cylinder (5); the linkage gear (602) is movably sleeved inside the air storage cylinder (5) and is located outside the linkage gear (602); the driven gear (603) is fixedly sleeved on the surface of the other end of the rotary cooling impeller (402) and is located outside the linkage gear (602); the surfaces of the pneumatic fan (601), the linkage gear (602) and the driven gear (603) are respectively meshed with each other.

7. The tail gas purification honeycomb ceramic substrate according to claim 5, characterized in that: A one-way valve group (7) located on one side of the pneumatic fan (601) is arranged inside the air storage cylinder (5), and the one-way valve group (7) includes a first one-way valve column (701) and a first connecting spring (702); The first one-way valve column (701) is movably installed in the inner cavity of the air storage cylinder (5) and is located on one side of the pneumatic fan (601). One end of the first one-way valve column (701) is elastically connected to the inner wall of the air storage cylinder (5) through a first connecting spring (702).

8. The tail gas purification honeycomb ceramic substrate according to claim 5, characterized in that: The inner cavity of the gas storage cylinder (5) is provided with a gas pushing assembly (8) located on one side of the first connecting spring (702), and the gas pushing assembly (8) includes a gas pushing plate (801) and a power spring (802); The air pushing plate (801) is movably mounted on the inner wall of the air pushing assembly (8) and is located on one side of the first connecting spring (702). The power spring (802) is fixedly connected to one side of the air pushing plate (801).

9. The tail gas purification honeycomb ceramic substrate according to claim 8, characterized in that: The other end of the power spring (802) is fixedly connected to the inner wall of the air storage cylinder (5).

10. The tail gas purification honeycomb ceramic substrate according to claim 5, characterized in that: The gas storage cylinder (5) is provided with an exhaust valve assembly (9) located outside the first one-way valve column (701), and the exhaust valve assembly (9) includes an exhaust channel (901), a second one-way valve column (902) and a second connecting spring (903); The exhaust channel (901) is opened inside the air storage cylinder (5) and is located outside the first one-way valve column (701). The second one-way valve column (902) is movably installed in the inner cavity of the exhaust channel (901) and is located outside the other end of the first one-way valve column (701). One end of the second one-way valve column (902) is elastically connected to the inner wall of the exhaust channel (901) through a second connecting spring (903).

Images