Metal honeycomb carrier with square staggered pore channel structure

Abstract

The utility model provides a metal honeycomb carrier with a square staggered pore channel structure, which comprises a metal frame body, a metal honeycomb carrier is fixedly arranged in the metal frame body, and the metal honeycomb carrier is formed by stacking flat belts and square staggered pore channel metal foil belts. A first hole channel and a second hole channel are formed in the square staggered hole channel metal foil belt in the length direction, the second hole channel is communicated with the first hole channel in a staggered mode, a first wave band is arranged in the length direction based on the first hole channel, and a second wave band is arranged in the length direction based on the second hole channel. The first wave zone and the second wave zone are circularly arranged in the width direction of the square staggered hole channel metal foil belt. According to the utility model, the metal foil belt is pressed upwards to form the staggered square pore channel structure, so that the back pressure is increased, the time of waste gas in the metal honeycomb carrier is prolonged, the catalytic conversion efficiency of the metal honeycomb carrier can be improved, and the square pore channel structure design can increase the welding area of the foil belt and the flat belt; and the welding strength of the metal honeycomb carrier is enhanced.

Description

Technical Field

[0001] The utility model relates to a metal carrier, in particular to a metal honeycomb carrier with a square staggered channel structure. Background Art

[0002] With the rapid development of society, people's attention to the atmospheric environment is increasing day by day, and the demand for the treatment of industrial waste gas and household waste gas is also growing. How to efficiently and energy-savingly treat industrial waste gas and household waste gas has become a new focus.

[0003] At present, the internal of the square metal honeycomb carrier on the market mainly adopts ordinary waveform structures (multi-dimensional sine wave or triangular wave), mixed flow type structures (XF structure) and turbulent flow type structures (TF structure). However, the foregoing structures have the following problems:

[0004] (1) The welding points are mainly on both sides of the wave crest, and the number of welding points is small, so it is easy to appear the phenomenon of insecure welding;

[0005] (2) The existing carrier has a short gas flow residence time and poor waste gas purification effect;

[0006] (3) For the XF type structure, the purification area is small, resulting in a low catalytic conversion rate; for the TF type structure, the number of connection points is small and the compressive strength is low;

[0007] (4) For the same catalytic conversion effect, the material consumption is large and the material cost is high. Summary of the Utility Model

[0008] The technical problem to be solved by the utility model is to overcome the defects existing in the prior art. The utility model provides a metal honeycomb carrier with a square staggered channel structure, which solves the phenomenon of insecure welding of the existing metal carrier, increases the residence time of the gas flow in the inner core, solves the problem of low catalytic conversion efficiency of the existing metal honeycomb carrier, and on the premise of obtaining its purification effect, minimizes the material use, reduces the material cost, increases the specific surface area, and optimizes the catalytic conversion effect.

[0009] To solve the above technical problem, the technical solution adopted by the utility model is: a metal honeycomb carrier with a square staggered channel structure, including a metal frame body, and a metal honeycomb carrier is fixedly arranged in the metal frame body. The metal honeycomb carrier is composed of a flat belt and a square staggered channel metal foil belt.

[0010] A first channel and a second channel are formed along the length direction on the square misaligned channel metal foil strip. The second channel is misaligned and communicated with the first channel. A first wave band is arranged along the length direction based on the first channel. The wave crest part of the first wave band is constituted by the first channel. A second wave band is arranged along the length direction based on the second channel. The wave crest part of the second wave band is constituted by the second channel. The first wave band and the second wave band are arranged in a cycle along the width direction of the square misaligned channel metal foil strip.

[0011] Further, both the first channel and the second channel are of square structures, and the axial distance between the first channel and the second channel is less than 1 / 2 of the sum of the widths of the first channel and the second channel.

[0012] Further, the widths of the first channel and the second channel are the same, and the axis of the second channel coincides with the edge of the first channel.

[0013] Further, the distance between adjacent first channels is the same as the distance between adjacent second channels.

[0014] Further, the first channel and the second channel are located on the same side of the square misaligned channel metal foil strip.

[0015] Further, the metal honeycomb carrier is embedded in the metal frame body, and the end of the metal honeycomb carrier is welded to the metal frame body as a whole.

[0016] Compared with the prior art, the beneficial effects of the present utility model include:

[0017] 1) By pressing the metal foil strip into a misaligned square channel structure, the back pressure is increased, the residence time of the waste gas inside the metal honeycomb carrier is prolonged, the catalytic conversion efficiency of the metal honeycomb carrier can be improved, and the square channel structure design can increase the welding area between the foil strip and the flat strip, enhancing the welding strength of the metal honeycomb carrier;

[0018] 2) By designing the misaligned square channel structure to form a dual-channel structure, the catalytic conversion efficiency is higher. Under the same catalytic purification effect, the material usage amount is reduced, and the material cost is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present utility model will be described with reference to the accompanying drawings. It should be understood that the drawings are only for the purpose of illustration and are not intended to limit the protection scope of the present utility model. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 Schematically shows the overall structure of the square misaligned channel metal foil strip;

[0021] Figure 2 Schematically shows the overall structure of a cube - shaped product made of a metal foil strip with square - offset channels.

[0022] Reference numerals in the figure: 1 - metal frame, 2 - flat strip, 3 - metal foil strip with square - offset channels, 4 - first channel, 5 - second channel, 6 - first wave band, 7 - second wave band. Detailed implementation mode

[0023] It is easy to understand that according to the technical solution of the present utility model, without changing the essence of the present utility model, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following detailed implementation modes and the accompanying drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as the whole of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0024] A metal honeycomb carrier with a square - offset channel structure includes a metal frame 1. A metal honeycomb carrier is fixedly arranged in the metal frame 1, and the end of the metal honeycomb carrier is welded to the metal frame 1 as a whole. The aforementioned metal honeycomb carrier is composed of a flat strip 2 and a metal foil strip 3 with square - offset channels.

[0025] The following specifically describes the metal foil strip 3 with square - offset channels. As Figure 1 shown, a first channel 4 and a second channel 5 are opened along the length direction on the metal foil strip 3 with square - offset channels. The first channel 4 and the second channel 5 are connected end - to - end in a communicating state and the first channel 4 and the second channel 5 are offset by a certain distance, so that the area of the region conducted by the first channel 4 and the second channel 5 is smaller than the cross - sectional area of the first channel 4 or the second channel 5.

[0026] A first wave band 6 is arranged along the length direction of the metal foil strip 3 with square - offset channels based on the first channel 4. The peak part of the first wave band 6 is composed of the first channel 4, and the valley part is composed of the area of the metal foil strip 3 with square - offset channels where the first channel 4 is not processed. Based on the set first channel 4 and the metal foil strip 3 with square - offset channels, the first wave band 6 forms a complete waveform.

[0027] A second wave band 7 is arranged along the length direction of the metal foil strip 3 with square - offset channels based on the second channel 5. The peak part of the second wave band 7 is composed of the second channel 5, and the valley part is composed of the area of the metal foil strip 3 with square - offset channels where the second channel 5 is not processed. Based on the set second channel 5 and the metal foil strip 3 with square - offset channels, the second wave band 7 forms a complete waveform.

[0028] The aforementioned first wave band 6 and second wave band 7 are arranged in a cycle along the length direction of the metal foil strip 3 with square - offset channels, that is, a second wave band 7 is arranged between adjacent first wave bands 6 arranged along the length direction.

[0029] The first channel 4 and the second channel 5 set as described above are both square structures, and the first channel 4 and the second channel 5 have the same height, while the widths of the first channel 4 and the second channel 5 can be set to be the same or different, as long as it can be ensured that conduction can be achieved when the first channel 4 and the second channel 5 are arranged in a staggered manner; for the staggered setting of the second channel 5 relative to the first channel 4, it is only necessary to ensure that the axial spacing deviation between the first channel 4 and the second channel 5 is less than 1 / 2 of the sum of the widths of the first channel 4 and the second channel 5. In some preferred embodiments, the widths of the first channel 4 and the second channel 5 are the same, and the axis of the second channel 5 coincides with the edge of the first channel 4, so that the conduction part between the first channel 4 and the second channel 5 is exactly half of the cross-section of the first channel 4 or the second channel 5.

[0030] It should be noted that the distances between adjacent first channels 4 and between adjacent second channels 5 along the width direction of the square staggered channel metal foil strip 3 are the same, and the distance between adjacent first channels 4 and the width of the first channel 4 can be set to be the same or different, and the same is true for the distance between adjacent second channels 5, which is not limited in the present invention. The aforementioned first channel 4 and second channel 5 are both located on the same side of the square staggered channel metal foil strip 3.

[0031] According to the first embodiment (not shown) of the present invention, when using the square staggered channel metal foil strip 3 to manufacture a concentric circle structure product, a flat strip 2 and a square staggered channel metal foil strip 3 are wound around one end as a starting point to form a spiral cylindrical structure, and then the cylindrical structure is placed in a metal outer frame and welded into one body.

[0032] According to the second embodiment (not shown) of the present invention, when using the square staggered channel metal foil strip 3 to manufacture a double-core structure product, multiple flat strips 2 and multiple square staggered channel metal foil strips 3 are stacked in sequence at intervals, and then wound into an S shape to form a double-core structure, and then the double-core structure is placed in a metal outer frame and welded into one body.

[0033] As Figure 2 shown, according to the third embodiment of the present invention, when using the square staggered channel metal foil strip 3 to manufacture a cube structure product, multiple square staggered channel metal foil strips 3 and multiple flat strips 2 are stacked in sequence at intervals and then welded to form a cube structure product.

[0034] By pressing the metal foil belt into a misaligned square channel structure, the back pressure is increased, the time for exhaust gas inside the metal honeycomb carrier is extended, the catalytic conversion efficiency of the metal honeycomb carrier can be improved, and the square channel structure design can increase the welding area between the foil belt and the flat belt 2, enhancing the welding strength of the metal honeycomb carrier; and by designing the misaligned square channel structure, a dual-channel is formed, making the catalytic conversion efficiency higher. Under the same catalytic purification effect, the material usage is reduced, and the material cost is lowered.

[0035] The technical scope of the present utility model is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. A metal honeycomb carrier with a square staggered pore structure, characterized in that: It comprises a metal frame (1), in which a metal honeycomb carrier is fixedly arranged, and the metal honeycomb carrier is composed of a flat belt (2) and a square offset hole metal foil belt (3). A first channel (4) and a second channel (5) are provided on the square offset channel metal foil strip (3) along the length direction, the second channel (5) is staggeredly connected to the first channel (4), a first wave band (6) is provided based on the first channel (4) along the length direction, the wave crest of the first wave band (6) is formed by the first channel (4), a second wave band (7) is provided based on the second channel (5) along the length direction, the wave crest of the second wave band (7) is formed by the second channel (5), and the first wave band (6) and the second wave band (7) are cyclically arranged along the width direction of the square offset channel metal foil strip (3).

2. The metal honeycomb carrier with a square staggered pore structure according to claim 1, characterized in that: The first hole (4) and the second hole (5) are both square structures, and the axial distance between the first hole (4) and the second hole (5) is less than 1 / 2 of the sum of the widths of the first hole (4) and the second hole (5).

3. The metal honeycomb carrier with a square staggered pore structure according to claim 2, characterized in that: The first hole (4) and the second hole (5) have the same width, and the axis of the second hole (5) coincides with the edge of the first hole (4).

4. The metal honeycomb carrier with a square staggered pore structure according to claim 2, characterized in that: The spacing between adjacent first holes (4) is the same as the spacing between adjacent second holes (5).

5. The metal honeycomb carrier with a square staggered pore structure according to claim 1, characterized in that: The first hole (4) and the second hole (5) are located on the same side of the square offset hole metal foil strip (3).

6. The metal honeycomb carrier with a square staggered pore structure according to claim 1, characterized in that: The metal honeycomb carrier is embedded in the metal frame (1), and the end of the metal honeycomb carrier is welded to the metal frame (1) as a whole.

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