CN215468058U - Novel early warning air brick - Google Patents
Novel early warning air brick Download PDFInfo
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- CN215468058U CN215468058U CN202121535238.6U CN202121535238U CN215468058U CN 215468058 U CN215468058 U CN 215468058U CN 202121535238 U CN202121535238 U CN 202121535238U CN 215468058 U CN215468058 U CN 215468058U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model discloses a novel early warning air brick, which comprises a brick body, a high temperature resistance wire A and a high temperature resistance wire B; the fixed ends of the high-temperature resistance wires A and the fixed ends of the high-temperature resistance wires B are fixed inside the brick body, and the free ends of the high-temperature resistance wires A and the free ends of the high-temperature resistance wires B extend out of the brick body from the bottom of the brick body; the free end of the high-temperature resistance wire A and the free end of the high-temperature resistance wire B are respectively and electrically connected with the early warning device; the fixed ends of the high-temperature resistance wire A and the fixed ends of the high-temperature resistance wire B are directly and electrically connected at the position which is higher than or equal to the warning height of the brick body to form a closed loop or are electrically connected through molten steel to form a closed loop. The effective length of the air brick is judged by measuring the resistance value or the current value of the resistance wire, so that the effective length of the air brick is displayed and early warned in time, accidents caused by manual judgment errors are avoided, and the operation safety of steel making is greatly improved.
Description
Technical Field
The utility model relates to the technical field of air bricks. In particular to a novel early warning air brick.
Background
The iron and steel industry is the fundamental industry of China and plays an important role in national economy. The steel production is carried out under the high-temperature condition, and can be realized only by using refractory materials. The air brick is arranged at the bottom of a ladle, the bottom of a converter, the bottom of an electric furnace or the bottom of a tundish and is used for realizing gas stirring of molten steel, so that the temperature of the molten steel is uniform, the components are uniform, and solid impurities in the molten steel are promoted to float upwards quickly. Therefore, the air brick is a refractory material which is commonly used in steel smelting and plays an important role. The air brick is frequently consumed abnormally in use, the safety of the air brick is difficult to judge accurately by time and heat, and the loss degree of the air brick is often evaluated by adopting a manual judgment method for preventing safety accidents caused by excessive use of the air brick. However, the ventilation end of the air brick is easy to crack in the using process, which can cause inaccurate judgment of the warning height. Fig. 1 and 2 are schematic views of a common air brick, and an air permeable end of the common air brick is cracked in the using process, so that the effective length of the common air brick is difficult to accurately judge, and even a safety accident occurs.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to provide a novel early warning air brick capable of displaying and early warning in time so as to solve the problem of poor accuracy of the early warning height of the air brick judged manually at present.
In order to solve the technical problems, the utility model provides the following technical scheme:
a novel early warning air brick comprises a brick body, a high temperature resistance wire A and a high temperature resistance wire B; the fixed ends of the high-temperature resistance wires A and the fixed ends of the high-temperature resistance wires B are fixed inside the brick body, and the free ends of the high-temperature resistance wires A and the free ends of the high-temperature resistance wires B extend out of the brick body from the bottom of the brick body; the free end of the high-temperature resistance wire A and the free end of the high-temperature resistance wire B are respectively and electrically connected with an early warning device; the fixed end of the high-temperature resistance wire A and the fixed end of the high-temperature resistance wire B are directly and electrically connected at the position which is higher than or equal to the warning height of the brick body to form a closed loop or are electrically connected through molten steel to form a closed loop.
Above-mentioned novel early warning air brick, the stiff end of high temperature resistance wire A with the stiff end of high temperature resistance wire B is in the inside direct electrical connection of the brick body forms annular closed circuit or U type closed circuit.
Above-mentioned novel early warning air brick, the circular plane that the closed loop of annular encloses with the diapire of the brick body is parallel, just the closed loop of annular encloses the circular plane extremely the distance of brick body diapire is more than or equal to the warning height of the brick body.
In the novel early warning air brick, the U-shaped closed loop is formed by connecting two or more U-shaped resistance wire units in series to form a quincunx structure, the two or more U-shaped resistance wire units are on the same horizontal plane, and the plane of the U-shaped resistance wire unit is parallel to the bottom wall of the brick body; the distance from the plane of the U-shaped resistance wire unit to the bottom wall of the brick body is larger than or equal to the warning height of the brick body.
In the novel early warning air brick, the U-shaped closed loop is in a straight-tube structure formed by connecting two or more U-shaped resistance wire units in series, and the planes of the two or more U-shaped resistance wire units are perpendicular to the bottom wall of the brick body; the vertical section of each U-shaped resistance wire unit is perpendicular to the bottom wall of the brick body, and the horizontal sections of two adjacent U-shaped resistance wire units are respectively and vertically connected with two ends of the vertical section; the distance from a plane defined by the horizontal connecting sections of the adjacent U-shaped resistance wire units close to the bottom wall of the brick body is larger than or equal to the warning height of the brick body.
According to the novel early warning air brick, the length d of the high-temperature resistance wire of the horizontal section is 2-3 times that of the high-temperature resistance wire of the vertical section.
In the novel early warning air brick, the U-shaped closed loop forms a straight-tube structure in the brick body; the side surface of the straight cylindrical structure is vertical to the bottom wall of the brick body, and the plane enclosed by the top of the straight cylindrical structure is parallel to the bottom wall of the brick body; the distance from the plane defined by the top of the straight-tube structure to the bottom wall of the brick body is larger than or equal to the warning height of the brick body.
Above-mentioned novel early warning air brick, the stiff end of high temperature resistance wire A with the stiff end of high temperature resistance wire B stretches into respectively from the bottom of the brick body the top surface of the brick body and form closed loop through the molten steel electricity connection.
Above-mentioned novel early warning air brick, the stiff end of high temperature resistance wire A with the stiff end of high temperature resistance wire B is respectively certainly the bottom of the brick body stretches into in the brick body, and stretches out form closed circuit through the molten steel electricity connection outside the top of the brick body.
In the novel early warning air brick, the fixed end of the high-temperature resistance wire A and the fixed end of the high-temperature resistance wire B are disconnected; the distance from the end of the fixed end of the high-temperature resistance wire A to the bottom wall of the brick body is greater than or equal to the warning height of the brick body; the distance from the end of the fixed end of the high-temperature resistance wire B to the bottom wall of the brick body is larger than or equal to the warning height of the brick body.
The novel early warning air brick is characterized in that the early warning device is one or a combination of two or more of a power-off warning device, a resistance value measuring device and a current value measuring device.
In the novel early warning air brick, the brick body is a dispersion air brick or a slit air brick; the ratio of the height of the slit air brick to the height of the slit air brick is 15: 41; 1/5, the width of the slit being the height of the slit; the ratio of the diameter of the top wall of the brick body to the diameter of the bottom wall of the brick body is 12: 19.
The technical scheme of the utility model achieves the following beneficial technical effects:
(1) according to the utility model, the high-temperature resistance wire is implanted in the air brick from top to bottom, the high-temperature resistance wire is arranged into a U-shaped or annular loop or is broken by adopting a high-temperature resistant special alloy resistance wire, the high-temperature resistance wire is externally connected with a power failure alarm device and a resistance value or current value measuring device, and the effective length of the air brick is judged by measuring the resistance value or current value of the resistance wire in work, so that the effective length of the air brick is displayed and early-warned in time, the occurrence of accidents caused by manual judgment errors is avoided, and the operation safety of steel making is greatly improved. In addition, after the effective length corresponding to the air brick is obtained according to the measured resistance value of the high-temperature resistance wire, the residual length of the air brick can be accurately displayed through the early warning device, and warning information is accurately provided for the production process in a digital display and acousto-optic alarm mode, so that the production accident rate is greatly reduced.
(2) The utility model adopts Pu-resistant dispersion or slit air brick as a base, a high-temperature resistance wire is implanted in the interior of the Puer-resistant dispersion or slit air brick, and the residual length of the air brick is judged by measuring the resistance value of the resistance wire; the accident rate of the early warning air brick is about 0.1 percent, the accident rate of the conventional air brick is about 0.6 percent, the accident rate is reduced by 80 percent, and the effect is obvious; although the air brick is additionally provided with the high-temperature resistance and the alarm device, the cost is increased to a certain extent, the accident rate is reduced, the production cost is obviously reduced, and the operation safety of steel making is greatly improved. According to the utility model, a part of resistance wires in the air brick are vertically arranged, so that the current change is more obvious, and meanwhile, enough time for early warning and replacing the air brick is reserved; and when the length d of the horizontal resistance wire of the U-shaped unit is 2-3 times of the length H of the vertical resistance wire, the erosion surface of the air brick can be effectively monitored to move downwards, and enough time is reserved for field workers to prepare for replacing the air brick.
Drawings
FIG. 1 is a structural view of a conventional air brick;
FIG. 2 is a schematic view of a conventional air brick structure for manually judging the effective length of the air brick;
FIG. 3 is a schematic view of a longitudinal section structure of a novel early warning air brick in embodiment 1 of the utility model;
FIG. 4 is a schematic view of a cross-sectional top view of a novel early warning air brick according to embodiment 1 of the present invention;
FIG. 5 is a schematic view of a longitudinal section structure of a novel early warning air brick in embodiment 2 of the utility model;
FIG. 6 is a schematic view of a top-view cross-sectional structure of a novel early warning air brick in embodiment 2 of the present invention;
FIG. 7 is a schematic view of a longitudinal section structure of a novel early warning air brick in embodiment 3 of the utility model;
FIG. 8 is a schematic view of a cross-sectional top view of a novel early warning air brick according to embodiment 3 of the present invention;
FIG. 9 is a schematic view of a longitudinal section structure of another novel early warning air brick of the present invention after installation;
FIG. 10 is a schematic view of a longitudinal section structure of a mounted novel early warning air brick in embodiment 2 of the utility model
FIG. 11 is a schematic view showing the structure of a slit air brick used in the present invention;
FIG. 12 is a schematic view of the longitudinal section structure of another novel early warning air brick of the present invention;
FIG. 13 is a schematic view of a cross-sectional top view of another novel early warning air brick of the present invention;
FIG. 14 is a schematic view of the structure of the high temperature resistance wire in embodiment 2 of the present invention.
The reference numbers in the figures denote: 1-brick body; 2-warning height; 3-high temperature resistance wire A; 4-high temperature resistance wire B; 5-U-shaped resistance wire unit; 6-vertical section; 7-horizontal segment.
Detailed Description
Example 1
The structure of the novel early warning air brick is shown in fig. 3 and 4, and comprises a brick body 1, a high-temperature resistance wire A3 and a high-temperature resistance wire B4, wherein the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4 are both fixed inside the brick body 1, the free end of the high-temperature resistance wire A3 extends out of the brick body 1 from the bottom of the brick body 1, and the free end of the high-temperature resistance wire B4 extends out of the brick body 1 from the bottom of the brick body 1; the fixed ends of the high-temperature resistance wire A3 and the high-temperature resistance wire B4 form an annular closed loop in the brick body 1; the circular plane surrounded by the annular closed loop is parallel to the bottom wall of the brick body 1, and the distance from the circular plane surrounded by the annular closed loop to the bottom wall of the brick body 1 is equal to the warning height 2 of the air brick; the free end of the high-temperature resistance wire A3 and the free end of the high-temperature resistance wire B4 are electrically connected with the current value measuring device and the resistance value measuring device; in the manufacturing process, an annular closed loop formed by the high-temperature resistance wire A3 and the high-temperature resistance wire B4 in an enclosing mode can be integrally formed; the brick body in the embodiment is a slit air brick, the specific structure of which is shown in fig. 11, and the ratio of the height of the slit air brick to the height of the slit air brick is 15: 41; the width of the slit is 1/5; the ratio of the diameter of the top wall of the brick body 1 to the diameter of the bottom wall of the brick body 1 is 12: 19.
The early warning air brick of this embodiment is through implanting high temperature resistance wire in the brick body inside, through survey current value and resistance value come to judge whether the residual length of air brick reaches the safety warning position, this is closed circuit survey device.
The working principle is as follows: the air brick is arranged on the ladle bottom of the ladle, the air brick is gradually worn along with the prolonging of the service time, when the worn part of the air brick is higher than the warning height 2, the numerical value obtained by the measurement of the current value measurement device and the resistance value measurement device corresponds to the resistance value of the high-temperature resistance wire, and the liquid level of the ladle is closer to the high-temperature resistance wire along with the continuous erosion of the air brick, so the resistance of the resistance wire is gradually increased along with the rising of the temperature, and the current value is gradually reduced; when the loss degree of the air brick reaches the warning height 2, due to the existence of molten steel, a short circuit occurs in an annular closed loop formed by the high-temperature resistance wires, so that the measured current value is suddenly increased, the resistance value is reduced, the effective length of the air brick is judged to reach the warning height, and the early warning effect is exerted. If the air brick needs to be used continuously, the effective length of the air brick corresponds to the resistance value of the high-temperature resistance wire, namely the resistance value is gradually reduced along with the reduction of the effective length of the air brick, so that the effective length of the air brick is judged according to the measured resistance value. If the air brick cracks in the using process, the molten steel can permeate into the air brick to reduce the effective length of the air brick, and the condition can be found by measuring the current value or the resistance value, so that the accident caused by misjudging the effective length of the air brick due to the cracking of the air brick can be avoided.
The novel early warning air brick of this embodiment is used in the ladle package end and carries out the safety test to make the contrast with conventional air brick. Through tests, the accident rate of the early warning air brick adopting the embodiment is 0.09%, and the accident rate of the conventional air brick is 0.59%.
In other embodiments, the annular closed loop can also be replaced by a U-shaped closed loop, the U-shaped closed loop is formed by connecting two or more U-shaped resistance wire units 5 in series to form a "quincunx" structure (see fig. 13), the two or more U-shaped resistance wire units 5 are on the same horizontal plane, and the plane of the U-shaped resistance wire units 5 is parallel to the bottom wall of the brick body 1; the distance from the plane of the U-shaped resistance wire unit 5 to the bottom wall of the brick body 1 is greater than or equal to the warning height 2 of the brick body 1. Compared with the annular closed loop in the embodiment 1, the high-temperature resistance wire with the structure can increase the monitoring area and avoid that the local erosion of the air brick cannot be monitored in time when being severe.
Example 2
The structure of the novel early warning air brick is shown in fig. 5 and 6, and comprises a brick body 1, a high-temperature resistance wire A3 and a high-temperature resistance wire B4, wherein the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4 are both fixed inside the brick body 1, the free end of the high-temperature resistance wire A3 extends out of the brick body 1 from the bottom of the brick body 1, and the free end of the high-temperature resistance wire B4 extends out of the brick body 1 from the bottom of the brick body 1; the fixed ends of the high-temperature resistance wires A3 and the fixed ends of the high-temperature resistance wires B4 form a U-shaped closed loop in the brick body 1, the U-shaped closed loop is in a straight-tube structure formed by connecting two or more U-shaped resistance wire units 5 in series, and the planes of the two or more U-shaped resistance wire units 5 are perpendicular to the bottom wall of the brick body 1; the vertical section 6 of each U-shaped resistance wire unit 5 is vertical to the bottom wall of the brick body 1, and the horizontal sections 7 of two adjacent U-shaped resistance wire units 5 are respectively and vertically connected with the two ends of the vertical section 6; the distance from a plane defined by the horizontal connecting sections of the adjacent U-shaped resistance wire units 5 close to the bottom wall of the brick body 1 is greater than or equal to the warning height 2 of the brick body 1, and the length d of the high-temperature resistance wire of the horizontal section 7 is 2 times of the length H of the high-temperature resistance wire of the vertical section 6 (see figure 14); the free end of the high-temperature resistance wire A3 and the free end of the high-temperature resistance wire B4 are electrically connected with the current value measuring device and the resistance value measuring device; in the manufacturing process, a U-shaped closed loop formed by the high-temperature resistance wire A3 and the high-temperature resistance wire B4 can be integrally formed.
According to the early warning air brick, the high-temperature resistance wire is implanted into the brick body, and whether the residual length of the air brick reaches the safety warning position or not is judged by measuring the current value and the resistance value, so that the early warning air brick is a closed-circuit measuring device; the mounted early warning air brick is shown in figure 10.
The working principle is as follows: the air brick is installed on a ladle bottom, the air brick is gradually worn along with the prolonging of the service time, when the worn part of the air brick is higher than the warning height 2, the numerical value obtained by the measurement of the current value measurement device and the resistance value measurement device corresponds to the resistance value of the high-temperature resistance wire, but as the air brick is continuously eroded, the liquid level of the ladle is closer and closer to the high-temperature resistance wire, the resistance of the resistance wire is gradually increased along with the rising of the temperature, the current value is gradually reduced, when the molten steel in the ladle faces the position of a horizontal section 7 which is close to and far away from the bottom wall of the brick body, the temperature of the resistance wire is obviously raised, the current is obviously influenced by the heating quantity, the effective length of the air brick is prompted to be close to H, at the moment, a worker can prepare to replace the air brick, and the preparation is finished, and the effective length of the air brick is just close to the warning height 2.
The novel early warning air brick of this embodiment is used in the ladle package end and carries out the safety test to make the contrast with conventional air brick. Through tests, the accident rate of the early warning air brick adopting the embodiment is 0.08%, and the accident rate of the conventional air brick is 0.59%. Compared with the technical scheme of the embodiment 1, in the embodiment, a part of the high-temperature resistance wires are vertically arranged, and the smaller the length H of the vertical resistance wire is, the more obvious the current changes under the influence of heat, so that when the air brick is worn to the position near the warning height, the current changes obviously and is easy to find, and meanwhile, enough time for early warning and replacing the air brick is reserved.
Example 3
The structure of the novel early warning air brick is shown in fig. 7 and 8, and comprises a brick body 1, a high-temperature resistance wire A3 and a high-temperature resistance wire B4, wherein the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4 are both fixed inside the brick body 1, the free end of the high-temperature resistance wire A3 extends out of the brick body 1 from the bottom of the brick body 1, and the free end of the high-temperature resistance wire B4 extends out of the brick body 1 from the bottom of the brick body 1; the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4 extend into the top surface of the brick body 1 from the bottom of the brick body 1 respectively and are electrically connected through molten steel to form a closed loop; the lengths of the high-temperature resistance wire A3 and the high-temperature resistance wire B4 extending into the brick body 1 are both greater than the warning height 2 of the air brick; the fixed ends of the high-temperature resistance wire A3 and the high-temperature resistance wire B4 are parallel and are respectively vertical to the bottom wall of the brick body 1; the free end of the high-temperature resistance wire A3 and the free end of the high-temperature resistance wire B4 are both electrically connected with the resistance value measuring device.
The early warning air brick of this embodiment is through implanting high temperature resistance wire in the internal portion of brick, and the residual length of air brick is judged through the resistance value of survey resistance wire, and this is the survey device that opens circuit.
The working principle is as follows: the air brick is arranged on the ladle bottom, and the air brick is gradually lost along with the prolonging of the service life. Before the air brick is worn, the high-temperature resistance wire A3 and the high-temperature resistance wire B4 are broken inside the brick body 1, the measured resistance value is infinite, along with the air brick, the high-temperature resistance wire A3 and the high-temperature resistance wire B4 are exposed out of the brick body 1 and are contacted with molten steel in a steel ladle, so that the high-temperature resistance wire A3 and the high-temperature resistance wire B4 form a closed loop, and the resistance value measured by the resistance value measuring device is the resistance value of the high-temperature resistance wire A3 and the high-temperature resistance wire B4; the air brick continues to be worn and shortened, the liquid level of the molten steel descends along with the air brick, the part of the high-temperature resistance wire extending into the molten steel is short-circuited, the resistance value measured by the resistance value measuring device is reduced, and the resistance value corresponds to the lengths of the high-temperature resistance wire A3 and the high-temperature resistance wire B4 in the brick body 1, namely the smaller the resistance value is, the smaller the effective length of the brick body 1 is. Therefore, the effective length of the air brick can be judged according to the resistance value. If the air brick cracks in the using process, the molten steel can permeate into the air brick to reduce the effective length of the air brick, and the condition can be found by measuring the current value or the resistance value, so that the accident caused by misjudging the effective length of the air brick due to the cracking of the air brick can be avoided.
The novel early warning air brick of this embodiment is used in the ladle package end and carries out the safety test to make the contrast with conventional air brick. Through tests, the accident rate of the early warning air brick adopting the embodiment is 0.08%, and the accident rate of the conventional air brick is 0.59%.
In other embodiments, it may be: the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4 extend into the brick body 1 from the bottom of the brick body 1 respectively, extend out of the top of the brick body 1 and are electrically connected through molten steel to form a closed loop (as shown in figure 9); the method can also be as follows: the inside of the brick body 1 is broken between the fixed end of the high-temperature resistance wire A3 and the fixed end of the high-temperature resistance wire B4, and the distance from the end of the fixed end of the high-temperature resistance wire A3 to the bottom wall of the brick body 1 is greater than or equal to the warning height of the brick body 1; the distance from the end of the fixed end of the high-temperature resistance wire B4 to the bottom wall of the brick body 1 is greater than or equal to the warning height of the brick body 1 (as shown in figure 12); the same technical effects as those of the present embodiment can be obtained.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (10)
1. A novel early warning air brick is characterized by comprising a brick body (1), a high-temperature resistance wire A (3) and a high-temperature resistance wire B (4); the fixed ends of the high-temperature resistance wires A (3) and the fixed ends of the high-temperature resistance wires B (4) are fixed inside the brick body (1), and the free ends of the high-temperature resistance wires A (3) and the free ends of the high-temperature resistance wires B (4) extend out of the brick body (1) from the bottom of the brick body (1); the free end of the high-temperature resistance wire A (3) and the free end of the high-temperature resistance wire B (4) are respectively and electrically connected with an early warning device; the fixed end of the high-temperature resistance wire A (3) and the fixed end of the high-temperature resistance wire B (4) are directly and electrically connected at the position which is more than or equal to the warning height (2) of the brick body (1) to form a closed loop or are electrically connected through molten steel to form a closed loop.
2. The novel early warning air brick as claimed in claim 1, wherein the fixed end of the high temperature resistance wire A (3) and the fixed end of the high temperature resistance wire B (4) are directly and electrically connected inside the brick body (1) to form an annular closed loop or a U-shaped closed loop.
3. The novel early warning air brick as claimed in claim 2, wherein the circular plane enclosed by the annular closed loop is parallel to the bottom wall of the brick body (1), and the distance from the circular plane enclosed by the annular closed loop to the bottom wall of the brick body (1) is greater than or equal to the warning height (2) of the brick body (1).
4. The novel early warning air brick as claimed in claim 2, wherein the U-shaped closed loop is formed by connecting two or more U-shaped resistance wire units (5) in series to form a quincunx structure, the two or more U-shaped resistance wire units (5) are on the same horizontal plane, and the plane of the U-shaped resistance wire units (5) is parallel to the bottom wall of the brick body (1); the distance from the plane of the U-shaped resistance wire unit (5) to the bottom wall of the brick body (1) is greater than or equal to the warning height (2) of the brick body (1).
5. The novel early warning air brick as claimed in claim 2, wherein the U-shaped closed loop is formed in a straight-tube structure by connecting two or more U-shaped resistance wire units (5) in series, and the planes of the two or more U-shaped resistance wire units (5) are perpendicular to the bottom wall of the brick body (1); the vertical section (6) of each U-shaped resistance wire unit (5) is perpendicular to the bottom wall of the brick body (1), and the horizontal sections (7) of two adjacent U-shaped resistance wire units (5) are respectively and vertically connected with the two ends of the vertical section (6); the distance from a plane defined by the horizontal connecting sections of the adjacent U-shaped resistance wire units (5) close to the bottom wall of the brick body (1) is greater than or equal to the warning height (2) of the brick body (1).
6. The novel early warning air brick as claimed in claim 5, wherein the length d of the high temperature resistance wire of the horizontal section (7) is 2-3 times of the length H of the high temperature resistance wire of the vertical section (6).
7. The novel early warning air brick as claimed in claim 1, wherein the fixed end of the high temperature resistance wire A (3) and the fixed end of the high temperature resistance wire B (4) respectively extend into the top surface of the brick body (1) from the bottom of the brick body (1) and are electrically connected through molten steel to form a closed loop.
8. The novel early warning air brick as claimed in claim 1, wherein the fixed end of the high temperature resistance wire A (3) and the fixed end of the high temperature resistance wire B (4) respectively extend into the brick body (1) from the bottom of the brick body (1) and extend out of the top of the brick body (1) to form a closed loop through electrical connection of molten steel.
9. The novel early warning air brick as claimed in claim 1, wherein the fixed end of the high temperature resistance wire A (3) and the fixed end of the high temperature resistance wire B (4) are disconnected; the distance from the end of the fixed end of the high-temperature resistance wire A (3) to the bottom wall of the brick body (1) is greater than or equal to the warning height (2) of the brick body (1); the distance from the fixed end of the high-temperature resistance wire B (4) to the bottom wall of the brick body (1) is greater than or equal to the warning height (2) of the brick body (1).
10. The novel early warning air brick as claimed in claim 1, wherein the brick body (1) is a dispersion air brick or a slit air brick; the ratio of the height of the slit air brick to the height of the slit air brick is 15: 41; 1/5, the width of the slit being the height of the slit; the ratio of the diameter of the top wall of the brick body (1) to the diameter of the bottom wall of the brick body (1) is 12: 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535238.6U CN215468058U (en) | 2021-07-07 | 2021-07-07 | Novel early warning air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121535238.6U CN215468058U (en) | 2021-07-07 | 2021-07-07 | Novel early warning air brick |
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| Publication Number | Publication Date |
|---|---|
| CN215468058U true CN215468058U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121535238.6U Active CN215468058U (en) | 2021-07-07 | 2021-07-07 | Novel early warning air brick |
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| CN (1) | CN215468058U (en) |
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2021
- 2021-07-07 CN CN202121535238.6U patent/CN215468058U/en active Active
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