CN219279944U - Composite circular seam air brick - Google Patents
Composite circular seam air brick Download PDFInfo
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- CN219279944U CN219279944U CN202320040468.8U CN202320040468U CN219279944U CN 219279944 U CN219279944 U CN 219279944U CN 202320040468 U CN202320040468 U CN 202320040468U CN 219279944 U CN219279944 U CN 219279944U
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Abstract
The utility model discloses a composite circular seam air brick, which comprises a brick core body, wherein two or more than two composite air passage units are arranged in the brick core body, and each composite air passage unit comprises at least one continuous circular seam and at least one intermittent circular seam; the continuous circumferential seam and the discontinuous circumferential seam both encircle the axis of the brick core body and extend along the length direction of the brick core body; at any cross section of the brick core body: the continuous circumferential seams and the intermittent circumferential seams are distributed on the circumference taking the center of the brick core body as the center of a circle, and two or more than two composite air passage units are distributed along the radial direction of the brick core body. The utility model can solve the problems of high labor intensity of oxygen burning, blowing and cleaning, high probability of steel penetration of the slit and the like of the whole brick core in the use process of the conventional air brick.
Description
Technical Field
The utility model relates to the technical field of air bricks. In particular to a composite circular seam air brick.
Background
The development of industrial technology makes the social demand put forward higher requirements on the quality and quality of steel, and forces steel companies to continuously upgrade the smelting technology, so that the refining proportion and difficulty of steel smelting are continuously improved, and higher requirements are put forward on the stability and smoothness of the smelting process. Moreover, since the whole iron and steel enterprises enter the micro-profit era, many steel works are in a loss state, the iron and steel enterprises develop cost reduction and synergy from various aspects, and the cost reduction of refractory material product suppliers is one of them. In this context, as a functional refractory air brick for secondary refining key elements, the customer has set higher requirements: long service life, high ventilation and high blowing rate.
Slit type air brick possesses long-life, the great advantage of air permeability, but has the oxygen burning to sweep the clearance intensity of labour in the use and is big to and the slit oozes the steel probability high scheduling problem of the whole transection of brick core, and these unstable factors influence the use of air brick, and then have influenced the rhythm of iron and steel smelting. Therefore, the prior air brick product needs to be improved, the labor intensity of on-site hot repair operation is reduced, the time of oxygen burning cleaning is shortened, and the probability of air cross-section is reduced on the premise of guaranteeing the whole service life of the air brick.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to provide the composite circular seam air brick with long service life, large ventilation amount and high blowing-through rate, so as to solve the problems of high labor intensity of oxygen burning, blowing and cleaning, high probability of cross section of the whole brick core and slit steel infiltration in the use process of the conventional air brick.
In order to solve the technical problems, the utility model provides the following technical scheme:
the composite circular seam air brick comprises a brick core body, wherein two or more than two composite air passage units are arranged in the brick core body, and each composite air passage unit comprises at least one continuous circular seam and at least one intermittent circular seam; the continuous circumferential seam and the discontinuous circumferential seam both encircle the axis of the brick core body and extend along the length direction of the brick core body; at any cross section of the brick core body: the continuous circumferential seams and the intermittent circumferential seams are distributed on the circumference taking the center of the brick core body as the center of a circle, and two or more than two composite air passage units are distributed along the radial direction of the brick core body. The continuous circular seams are communicated on the same circumference of any cross section, namely, the ventilation channels formed by the continuous circular seams are communicated in the circumferential direction of the brick core body besides being longitudinally communicated along the brick core body; the intermittent circumferential seams are of a through structure in the longitudinal direction of the brick core body, namely a plurality of ventilation channels formed by the intermittent circumferential seams are through in the longitudinal direction, and the ventilation channels distributed on the same circumference are not communicated; when the air is ventilated, the air only passes through each slit passage, and each passage is independent; on any cross section of the brick core body, all the air permeable channels formed by the continuous annular seams and/or the discontinuous annular seams which are adjacent along the radial direction of the brick core body are not communicated; the composite circular seam air brick with the air passages formed by compositing the continuous circular seam and the intermittent circular seam has a certain number of mutually independent air passages and has good effect on resisting high-temperature liquid permeation. The brick bodies are also very resistant to spalling, since the brick cores between the ventilation channels are substantially integral.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: in the same composite air passage unit, the distance from the continuous circular seam to the center of the brick core body is greater than the distance from the intermittent circular seam to the center of the brick core body.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: the distance between the continuous circumferential seam and the discontinuous circumferential seam in the same compound air passage unit is smaller than or equal to the distance between two adjacent compound air passage units.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: the distance between the continuous circumferential seam and the discontinuous circumferential seam in the same compound air passage unit is greater than or equal to the distance between two adjacent compound air passage units.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: in the same composite air passage unit, the distance from the continuous circular seam to the center of the brick core body is smaller than the distance from the intermittent circular seam to the center of the brick core body.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: the distance between the continuous circumferential seam and the discontinuous circumferential seam in the same compound air passage unit is smaller than or equal to the distance between two adjacent compound air passage units.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: the distance between the continuous circumferential seam and the discontinuous circumferential seam in the same compound air passage unit is greater than or equal to the distance between two adjacent compound air passage units.
The composite circular seam air brick is characterized in that the air outlet end face of the brick core body is provided with: the distance between the continuous circumferential seam and the adjacent discontinuous circumferential seam is 10-25 mm; the seam width of the continuous circular seam is 0.10-0.35 mm; the width of the intermittent circular seam is 0.10-0.35 mm.
Above-mentioned compound circular seam air brick, on the arbitrary cross section of brick core body: the intermittent circumferential seam comprises two or more intermittent circumferential seam units; on the end face of the air outlet end of the brick core body: the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam is 10-20 mm.
The composite circular seam air brick further comprises a metal steel shell, a metal bottom plate and a metal tail pipe; the metal steel shell is arranged on the outer wall surface of the brick core body through a refractory clay layer, the metal bottom plate is positioned at the air inlet end of the brick core body and is fixedly connected with the metal steel shell on the side wall surface of the brick core body, and the metal tail pipe is fixedly connected with the metal bottom plate; an air chamber is arranged between the metal bottom plate and the bottom wall of the brick core body, the fluid inlet end of the air chamber is in fluid communication with the fluid outlet end of the metal tail pipe through a bottom plate vent hole arranged on the metal bottom plate, and the fluid outlet end of the air chamber is in fluid communication with the fluid inlet end of the gas channel; the brick core body further comprises an air brick connector, and two ends of the air brick connector are respectively fixed on the inner wall of the composite air passage unit; the total volume of the air brick connector accounts for 10-20% of the total volume of the composite air passage unit.
The technical scheme of the utility model has the following beneficial technical effects:
1. the continuous circular seam of the composite circular seam air brick of the utility model is communicated with the brick core body in the same circumference of any cross section, namely the air passage is communicated in the circumferential direction of the brick core body except along the longitudinal direction of the brick core body; therefore, the gas flow can ventilate in the whole channel, and if the ventilation channel formed by the composite air channel unit is locally blocked, the gas can bypass the blocking object to normally ventilate.
2. In the service process of the composite circular seam air brick, the working face is easy to purge and clean, and the blowing-through rate is high: the utility model can concentrate to the central part of the brick core body by adjusting the radiuses of the continuous circular seam and the discontinuous circular seam, so that the ventilation channels are concentrated to the central part of the composite circular seam air brick, and ventilation can be realized quickly by only blowing the central position of the composite circular seam air brick during hot repair cleaning, thereby ensuring that the composite circular seam air brick has higher ventilation rate.
3. The ventilation quantity of the composite circular seam air brick can be adjusted: the aim of regulating and controlling the ventilation capacity of the composite circular seam air brick can be achieved by regulating the number of the composite air channel units and the interval between the composite air channel units and the sizes of the circumferences and the seam widths of the continuous circular seam and the intermittent circular seam.
4. The composite circular seam air brick has good thermal shock stability, and can prevent the whole working face of the air brick from being transversely broken: in the service process of the air brick, the peeling of brick bodies among the air passages of one part can not affect the peeling of brick bodies of other parts.
Drawings
FIG. 1 is a schematic view (front view) of the structure of embodiment 1 of the present utility model;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic view (top view) of the structure of embodiment 1 of the present utility model;
FIG. 4 is a schematic view (top view) of the structure of embodiment 2 of the present utility model;
FIG. 5 is a schematic view (top view) of the structure of embodiment 3 of the present utility model;
FIG. 6 is a schematic view (top view) of the structure of embodiment 4 of the present utility model;
FIG. 7 is a schematic view (top view) of the structure of embodiment 5 of the present utility model;
fig. 8 is a schematic structural view (top view) of embodiment 6 of the present utility model.
The reference numerals in the drawings are as follows: 1-a brick core body; a 2-compound airway unit; 3-metal steel shell; 4-a refractory mortar layer; 5-air chamber; 6-a metal base plate; 7-a bottom plate vent; 8-a metal tail pipe; 21-continuous circumferential seams; 22-intermittent circumferential seams.
Detailed Description
Example 1
The structural schematic diagrams of the composite circular seam air brick of the embodiment are shown in fig. 1 to 3, and the composite circular seam air brick comprises a brick core body 1, a metal steel shell 3, a metal bottom plate 6, a metal tail pipe 8 and an air brick connector; as can be seen from fig. 1, the metal steel shell 3 is mounted on the outer wall surface of the brick core body 1 through a refractory mortar layer 4 [ see fig. 2 ], the metal bottom plate 6 is positioned at the air inlet end of the brick core body 1 and is welded with the metal steel shell 3 on the side wall surface of the brick core body 1, and the metal tail pipe 8 is welded with the metal bottom plate 6; an air chamber 5 is arranged between the metal bottom plate 6 and the bottom wall of the brick core body 1, the height of the air chamber 5 is 5mm, the fluid inlet end of the air chamber 5 is in fluid communication with the fluid outlet end of the metal tail pipe 8 through a bottom plate vent hole 7 arranged on the metal bottom plate 6, and the fluid outlet end of the air chamber 5 is in fluid communication with the fluid inlet end of the gas channel; the diameter of the bottom plate vent hole 7 is the same as the inner diameter of the metal tail pipe 8; the metal steel shell 3 is made of stainless steel materials, the metal bottom plate is made of carbon steel materials, and the metal tail pipe 8 is made of heat-resistant pressure-resistant steel pipes; two ends of the air brick connector are respectively fixed on the inner wall of the composite air passage unit 2; the total volume of the air brick connector accounts for 15% of the total volume of the composite air passage unit 2 [ in order to ensure that brick bodies at two sides of an annular seam in the brick body are not separated due to a channel formed by the annular seam, 85% of the brick bodies at two sides are separated by a slit channel, and the other 15% of the brick bodies at two sides are connected and communicated by a refractory material matrix ]; the material structure of the whole composite circular seam air brick is uniform.
As shown in fig. 3, the brick core body 1 is provided with two composite air passage units 2, and each composite air passage unit 2 comprises a continuous circumferential seam 21 and a discontinuous circumferential seam 22; the continuous circumferential seam 21 and the discontinuous circumferential seam 22 both encircle the axis of the brick core body and both extend along the length direction of the brick core body 1; at any cross section of the brick core body 1: the continuous circumferential seams 21 and the intermittent circumferential seams 22 are distributed on the circumference taking the center of the brick core body as the center of the circle, and the two composite air passage units 2 are distributed along the radial direction of the brick core body 1.
At any cross section of the brick core body 1: in the same composite air passage unit 2, the distance from the continuous circumferential seam 21 to the center of the brick core body 1 is greater than the distance from the intermittent circumferential seam 22 to the center of the brick core body 1; and the distance between the continuous circumferential seam 21 and the intermittent circumferential seam 22 is equal to the distance between the two composite air passage units 2 [ i.e., the distance between the continuous circumferential seam of one composite air passage unit 2 and the intermittent circumferential seam of the other composite air passage unit 2 ]. In this embodiment, on the air outlet end face of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of the same compound air passage unit 2 is 25mm; the distance between the two said compound airway units 2 is also 25mm; the seam width of the continuous circular seam 21 is 0.10mm; the slit width of the intermittent circumferential slit 22 was 0.35mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 10mm.
The composite circular seam air brick can be used for conveniently carrying out on-site hot repair oxygen burning, so that the oxygen burning time is reduced, and the loss of the air brick is prevented from being accelerated due to long-time oxygen burning; meanwhile, due to the special design of the composite air passage unit structure, the stress generated by the composite circular seam air brick in the service process can be counteracted and solved, namely
Partial stress is not completely eliminated, so that the composite circular seam air brick is partially peeled off, but the air permeability of the whole composite 5-joint air brick is basically not influenced, and the whole transverse probability of the composite circular seam air brick can be reduced.
When the composite circular seam air brick of the embodiment is in service, argon gas input from a pipeline enters the air chamber 5 through the metal tail pipe 8, and after the argon gas is buffered in the air chamber 5 to a certain extent, the argon gas uniformly enters the composite air passage
A unit 2; when gas enters the continuous circular seam 21, 0 gas-permeable channels in the circumferential structure of the same continuous circular seam 21 are all communicated, and if the gas-permeable channels are locally blocked by molten steel infiltration, the whole communication is not affected
Air permeability of the continuous circumferential seam 21. When the gas enters the intermittent circumferential seam 22, the intermittent circumferential seam 22 is formed by a plurality of intermittent circumferential seam units, the formed ventilation channel is an intermittent annular distributed slit, each intermittent circumferential seam unit is mutually independent, and if one or more intermittent circumferential seam units are blocked, other slits are not influenced
And (5) ventilation. Therefore, the composite circular seam air brick of the embodiment is provided with 5 alternating continuous circular seams and intermittent circular seams, which not only can ensure the air permeability of the brick body in a single-circle channel, but also has better resistance
Permeability and spalling resistance, and can effectively reduce the stress generated by the brick core body in service.
In this embodiment, the manufacturing process of the composite circular seam air brick comprises the following steps:
the composite air passage unit 2 is made of a material capable of being burned out and is arranged in a mould according to different ventilation channels
After the structure is fixed and the material is lost, casting and molding are carried out;
and (3) after the brick core body 1 is molded, drying, firing, sleeving a steel sleeve and welding to obtain a finished product package.
In the embodiment, the blowing-through rate of the composite circular seam air brick reaches 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 17% compared with that of the conventional air brick adopting a single slit structure.
Example 2
5 as shown in fig. 4, the composite circular seam air brick of this embodiment differs from that of embodiment 1 only in that: composite material
The number of the air passage units 2 is 3, and the brick core body 1 has any cross section: the distance between the continuous circumferential seam 21 and the intermittent circumferential seam 22 in each composite air passage unit 2 is greater than the distance between two adjacent composite air passage units 2. On the end face of the air outlet end of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of each composite air passage unit 2 is 25mm; the distance between two adjacent composite airway cells 2 is also 10mm; the seam width of the continuous circular seam 21 is 0.10mm; the slit width of the intermittent circumferential slit 22 is 0.25mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 20mm.
The blowing-through rate of the composite circular seam air brick in the embodiment can also reach 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 20% compared with that of the conventional air brick adopting a single slit structure.
Example 3
As shown in fig. 5, the composite circular seam air brick of this embodiment differs from that of embodiment 1 only in that: the number of the composite air passage units 2 is 3, and the brick core body 1 has any cross section: the distance between the continuous circumferential seam 21 and the intermittent circumferential seam 22 in each composite air passage unit 2 is smaller than the distance between two adjacent composite air passage units 2. On the end face of the air outlet end of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of each composite air passage unit 2 is 15mm; the distance between two adjacent composite airway cells 2 is 35mm; the seam width of the continuous circular seam 21 is 0.20mm; the slit width of the intermittent circumferential slit 22 is 0.20mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 15mm.
The blowing-through rate of the composite circular seam air brick in the embodiment can also reach 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 18% compared with that of the conventional air brick adopting a single slit structure.
Example 4
As shown in fig. 6, the composite circular seam air brick of this embodiment differs from that of embodiment 1 only in that: at any cross section of the brick core body 1: in the same composite air passage unit 2, the distance from the continuous circumferential seam 21 to the center of the brick core body 1 is smaller than the distance from the intermittent circumferential seam 22 to the center of the brick core body 1; on the end face of the air outlet end of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of the same compound air passage unit 2 is 25mm; the distance between the two said compound airway units 2 is also 25mm; the seam width of the continuous circular seam 21 is 0.10mm; the slit width of the intermittent circumferential slit 22 was 0.35mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 10mm.
The blowing-through rate of the composite circular seam air brick in the embodiment can also reach 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 15% compared with that of the conventional air brick adopting a single slit structure.
Example 5
As shown in fig. 7, the composite circular seam air brick of this embodiment differs from that of embodiment 4 only in that: the number of the composite air passage units 2 is 3, and the brick core body 1 has any cross section: the distance between the continuous circumferential seam 21 and the intermittent circumferential seam 22 in each composite air passage unit 2 is greater than the distance between two adjacent composite air passage units 2. On the end face of the air outlet end of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of each composite air passage unit 2 is 25mm; the distance between two adjacent composite airway cells 2 is also 10mm; the seam width of the continuous circular seam 21 is 0.10mm; the slit width of the intermittent circumferential slit 22 is 0.25mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 20mm.
The blowing-through rate of the composite circular seam air brick in the embodiment can also reach 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 18% compared with that of the conventional air brick adopting a single slit structure.
Example 6
As shown in fig. 8, the composite circular seam air brick of this embodiment differs from that of embodiment 4 only in that: the number of the composite air passage units 2 is 3, and the brick core body 1 has any cross section: the distance between the continuous circumferential seam 21 and the intermittent circumferential seam 22 in each composite air passage unit 2 is smaller than the distance between two adjacent composite air passage units 2. On the end face of the air outlet end of the brick core body 1: the distance between the continuous circumferential seam 21 and the discontinuous circumferential seam 22 of each composite air passage unit 2 is 15mm; the distance between two adjacent composite airway cells 2 is 35mm; the seam width of the continuous circular seam 21 is 0.20mm; the slit width of the intermittent circumferential slit 22 is 0.20mm. The intermittent circumferential seam 22 includes a plurality of intermittent circumferential seam units; the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam 22 is 15mm.
The blowing-through rate of the composite circular seam air brick in the embodiment can also reach 100%, and the probability of the integral transverse cutting and steel seepage in the service process is reduced by 16% compared with that of the conventional air brick adopting a single slit structure.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While the obvious variations or modifications which are extended therefrom remain within the scope of the claims of this patent application.
Claims (10)
1. The composite circular seam air brick comprises a brick core body (1), and is characterized in that two or more than two composite air passage units (2) are arranged in the brick core body (1), and the composite air passage units (2) comprise at least one continuous circular seam (21) and at least one intermittent circular seam (22); the continuous circumferential seam (21) and the discontinuous circumferential seam (22) encircle the axis of the brick core body and extend along the length direction of the brick core body (1); on any cross section of the brick core body (1): the continuous circumferential seams (21) and the intermittent circumferential seams (22) are distributed on the circumference taking the center of the brick core body as the center of a circle, and two or more than two composite air passage units (2) are distributed along the radial direction of the brick core body (1).
2. The composite circular seam air brick according to claim 1, characterized in that, on any cross section of the brick core body (1): in the same composite air passage unit (2), the distance from the continuous circumferential seam (21) to the center of the brick core body (1) is larger than the distance from the intermittent circumferential seam (22) to the center of the brick core body (1).
3. The composite circular seam air brick according to claim 2, characterized in that, on any cross section of the brick core body (1): the distance between the continuous circumferential seam (21) and the discontinuous circumferential seam (22) in the same compound air passage unit (2) is smaller than or equal to the distance between two adjacent compound air passage units (2).
4. The composite circular seam air brick according to claim 2, characterized in that, on any cross section of the brick core body (1): the distance between the continuous circumferential seam (21) and the discontinuous circumferential seam (22) in the same compound air passage unit (2) is larger than or equal to the distance between two adjacent compound air passage units (2).
5. The composite circular seam air brick according to claim 1, characterized in that, on any cross section of the brick core body (1): in the same composite air passage unit (2), the distance from the continuous circumferential seam (21) to the center of the brick core body (1) is smaller than the distance from the intermittent circumferential seam (22) to the center of the brick core body (1).
6. The composite circular seam air brick according to claim 5, characterized in that, on any cross section of the brick core body (1): the distance between the continuous circumferential seam (21) and the discontinuous circumferential seam (22) in the same compound air passage unit (2) is smaller than or equal to the distance between two adjacent compound air passage units (2).
7. The composite circular seam air brick according to claim 5, characterized in that, on any cross section of the brick core body (1): the distance between the continuous circumferential seam (21) and the discontinuous circumferential seam (22) in the same compound air passage unit (2) is larger than or equal to the distance between two adjacent compound air passage units (2).
8. The composite circular seam air brick according to any of claims 1-7, wherein on the air outlet end face of the brick core body (1): the distance between the continuous circular seam (21) and the adjacent discontinuous circular seam (22) is 10-25 mm; the seam width of the continuous circular seam (21) is 0.10-0.35 mm; the slit width of the intermittent circular slit (22) is 0.10-0.35 mm.
9. The composite circular seam air brick according to any of claims 1-7, wherein, at any cross section of the brick core body (1): the intermittent circumferential seam (22) comprises two or more intermittent circumferential seam units; on the end face of the air outlet end of the brick core body (1): the circumferential distance between two adjacent intermittent circumferential seam units on the circumference of the intermittent circumferential seam (22) is 10-20 mm.
10. The composite circular seam air brick of any of claims 1-7, further comprising a metal steel shell (3), a metal bottom plate (6) and a metal tail pipe (8); the metal steel shell (3) is arranged on the outer wall surface of the brick core body (1) through a refractory clay layer (4), the metal bottom plate (6) is positioned at the air inlet end of the brick core body (1) and is fixedly connected with the metal steel shell (3) on the side wall surface of the brick core body (1), and the metal tail pipe (8) is fixedly connected with the metal bottom plate (6); an air chamber (5) is arranged between the metal bottom plate (6) and the bottom wall of the brick core body (1), the fluid inlet end of the air chamber (5) is in fluid communication with the fluid outlet end of the metal tail pipe (8) through a bottom plate vent hole (7) arranged on the metal bottom plate (6), and the fluid outlet end of the air chamber (5) is in fluid communication with the fluid inlet end of the composite air channel unit (2); the brick core body (1) further comprises an air brick connector, and two ends of the air brick connector are respectively fixed on the inner wall of the composite air passage unit (2); the total volume of the air brick connector accounts for 10-20% of the total volume of the composite air passage unit (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320040468.8U CN219279944U (en) | 2023-01-08 | 2023-01-08 | Composite circular seam air brick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320040468.8U CN219279944U (en) | 2023-01-08 | 2023-01-08 | Composite circular seam air brick |
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| CN219279944U true CN219279944U (en) | 2023-06-30 |
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| CN202320040468.8U Active CN219279944U (en) | 2023-01-08 | 2023-01-08 | Composite circular seam air brick |
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- 2023-01-08 CN CN202320040468.8U patent/CN219279944U/en active Active
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