Temperature measuring system for furnace wall of coke oven carbonization chamber

Abstract

The utility model provides a coke oven carbonization chamber furnace wall temperature measurement system, which relates to the technical field of temperature detection, and comprises a heat insulation box arranged at the rear part of a coke pushing head of a coke pushing rod, an optical fiber temperature measurement probe is arranged in the heat insulation box, and the optical fiber temperature measurement probe is connected into a sensing instrument box in a normal temperature area at the tail end of the coke pushing rod through a laid sealed optical fiber pipeline; the sensing instrument box is arranged in a normal temperature area at the tail end of the coke pushing rod, and an infrared temperature measuring instrument, a data sampling device and a first wireless communication device are integrated in the sensing instrument box; the second wireless communication device and the industrial personal computer are arranged in the electric control chamber, and the second wireless communication device is in wireless communication connection with the first wireless communication device; the second wireless communication device is electrically connected with the industrial personal computer; the battery box is arranged at the tail end of the coke pushing rod; and a battery pack for supplying power to the sensing instrument box and a charging management device are arranged in the battery box. According to the utility model, a flexible drag chain and a pipeline are removed, and the temperature measurement reliability and long-term stability of the temperature measurement system are improved.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, and in particular to a temperature measurement system for the furnace wall of a coke oven carbonization chamber. Background Technology

[0002] In the coking process, the temperature inside the carbonization chamber of a large coke oven is a key factor determining coke quality and yield. The temperature of the carbonization chamber directly affects the degree of coal pyrolysis and the maturity of the coke, thus influencing quality indicators such as mechanical strength, reactivity, and abrasion resistance. Because the temperature and its distribution within the carbonization chamber are closely related to the final properties of the coke, accurate measurement and control of the carbonization chamber temperature are of great significance for improving coke quality, reducing energy consumption, and extending coke oven life.

[0003] Due to both technological and environmental challenges, the temperature inside the carbonization chamber of large coke ovens cannot be directly measured during actual production. Currently, the industry primarily employs indirect temperature measurement technologies. For example, existing technologies use temperature sensors or probes installed behind the coke pusher head during the coke pushing process to collect the surface temperature of the furnace wall, thus assessing the temperature inside the carbonization chamber. These sensors or probes are connected to the tail end of the pusher rod via dedicated protective conduits, and then transmitted to a fixed location on the pusher body via a flexible cable chain. This structure allows the sensors to move along with the pusher head during coke pushing operations, enabling continuous monitoring of the temperature at different locations within the carbonization chamber.

[0004] While existing temperature measurement systems can meet the needs of monitoring the temperature of the carbonization chamber to a certain extent, some shortcomings remain. First, the long piping of the cable carrier not only occupies considerable space but also increases the system's complexity and cost. Second, the maintenance and repair of long piping is relatively inconvenient, especially in the harsh coking environment where high temperatures, dust, and corrosive gases can damage the piping and sensors, increasing the difficulty of operation and maintenance. Furthermore, the flexible cable carrier is prone to wear and failure during long-term use, affecting the accuracy and reliability of temperature data transmission. Utility Model Content

[0005] In view of this, the present invention provides a temperature measurement system for the furnace wall of a coke oven carbonization chamber, which eliminates the flexible cable chain and pipelines, improves the reliability and long-term stability of the temperature measurement system, ensures the accuracy of temperature monitoring, thereby optimizing the coke production process and improving production efficiency and coke quality.

[0006] Therefore, the present invention provides the following technical solution:

[0007] This utility model provides a temperature measurement system for the furnace wall of a coke oven carbonization chamber, comprising:

[0008] A heat insulation box is installed at the rear of the coke pusher head. A fiber optic temperature probe is installed inside the heat insulation box. The fiber optic temperature probe is connected to a sensor instrument box in the normal temperature zone at the tail end of the coke pusher through a sealed fiber optic pipeline.

[0009] The sensor box installed at the end of the coke pusher in the ambient temperature zone integrates an infrared temperature measuring instrument, a data sampling device, and a first wireless communication device.

[0010] A second wireless communication device and an industrial control computer are installed in the electrical control room. The second wireless communication device is wirelessly connected to the first wireless communication device; the second wireless communication device is electrically connected to the industrial control computer; and the industrial control computer is electrically connected to the PLC system.

[0011] A battery box is installed at the tail end of the push rod, and the battery box contains a battery pack and a charging management device for powering the sensor instrument box.

[0012] Furthermore, it also includes: a high-efficiency fan installed in the ambient temperature area at the rear end of the push rod, which pressurizes the ambient temperature air and sends it into the distribution manifold for further distribution to each fiber optic temperature probe pipeline.

[0013] Furthermore, the front end of the sealed optical fiber pipeline is connected to the purge tube of the optical fiber temperature probe, and the rear end outputs optical fiber to the sensor instrument box through a three-way structure at one end, and is connected to the manifold of the high-efficiency air compressor fan at the other end.

[0014] Furthermore, the heat insulation box consists of a stainless steel outer shell, a mica insulation layer, an aerogel insulation layer, and a stainless steel inner shell, arranged from the outside to the inside. The outer shell and the inner shell are connected by an inlet pipe and a fiber optic temperature probe acquisition pipe. The extended part of the fiber optic temperature probe acquisition pipe also serves as a mounting ear, used to fix the heat insulation box to the mounting ear plate.

[0015] Furthermore, it also includes: communication antennas.

[0016] Furthermore, the communication antenna is a directional antenna; the directional antenna includes a first directional antenna and a second directional antenna, which are installed in pairs on the focus pusher working line. The first directional antenna is installed on the focus pusher, and the second directional antenna is installed on the focus pusher body. A first wireless communication device is connected to the first directional antenna through a coaxial feed line, and the second directional antenna is connected to a second wireless communication device in the electrical room through a feed line. The first directional antenna and the second directional antenna are always oriented relative to each other during the focus pusher process.

[0017] Furthermore, it also includes: an electrical connection device installed at the tail end of the focus pusher rod, which automatically connects to a power source when the focus pusher rod is in its original position to charge the battery pack and provide power for the system in standby mode.

[0018] Advantages and positive effects of this utility model: The coke oven carbonization chamber furnace wall temperature measurement system introduced in this utility model significantly saves space by eliminating the flexible cable chains and pipelines in traditional designs, effectively avoiding the increase in the size of the coke pusher. Therefore, the system can be installed without large-scale modifications to the existing coke pusher. This improvement not only reduces overall cost and construction expenses but also significantly reduces the difficulty of installation and construction, demonstrating a great advantage for upgrading and retrofitting older equipment. Furthermore, by eliminating the flexible cable chains and shortening the cable length, signal transmission becomes more stable, service life is extended, and maintenance is simpler and easier. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation of a coke oven carbonization chamber furnace wall temperature measurement system according to the present invention;

[0021] Figure 2 This is a schematic diagram of the installation of the fiber optic temperature probe in this utility model;

[0022] In the diagram, 1. Fiber optic temperature probe; 2. Sensor box; 3. Battery box; 4. Power connection device; 5. Directional antenna; 6. Second wireless communication device; 7. Industrial computer; 8. High-efficiency fan; 9. Sealed fiber optic pipeline; 10. Push rod; 11. Electrical room; 12. PLC system. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] like Figure 1 As shown, a coke oven carbonization chamber furnace wall temperature measurement system of this utility model includes:

[0026] The system includes: 1. Fiber optic temperature probe; 2. Sensor box; 3. Battery box; 4. Power connection device; 6. Second wireless communication device; and 7. Industrial control computer. Among these:

[0027] The fiber optic temperature probe 1 is installed at the rear of the coke pusher head (vertical plate) in front of the coke pusher rod 10. It enters the furnace with the coke pusher rod 10 and measures the furnace wall temperature in real time during the coke pushing process. The probe is then connected to the sensor box 2 at the ambient temperature zone of the tail end of the coke pusher rod 10 via a sealed fiber optic cable 9. Figure 2 As shown, fiber optic temperature probe 1 is installed back-to-back in the heat insulation box using a 90° angled fiber optic probe. Conventional probes aim directly like a gun barrel, requiring simultaneous temperature detection at symmetrical points on both sides of the furnace wall. However, the limited width of the carbonization chamber makes it inconvenient to simultaneously install two probes within the heat insulation box. This installation method is more suitable for temperature measurement of the furnace wall in the coke oven carbonization chamber. The heat insulation box is made of stainless steel with an insulating layer in the middle. From the outside to the inside, it consists of a stainless steel outer shell, a mica insulation layer, an aerogel insulation layer, and a stainless steel inner shell. The outer shell and inner shell are connected via an inlet conduit and the fiber optic temperature probe acquisition conduit. The extended portion of the fiber optic temperature probe acquisition conduit also serves as a mounting lug to fix the heat insulation box to the mounting plate.

[0028] The sensor box 2 is installed at the end of the push rod 10 in the ambient temperature zone. It integrates an infrared thermometer, a data sampling device, and a first wireless communication device. The infrared thermometer converts the infrared radiation signal collected by the fiber optic temperature probe 1 into an electrical signal corresponding to the actual temperature. The data sampling device performs preliminary processing on the converted electrical signal. The processed data is transmitted by the first wireless communication device to the second wireless communication device 6 in the electrical control room via a wireless network. The second wireless communication device 6 then transmits the data to the industrial control computer 7 and other system components.

[0029] The second wireless communication device 6 and the industrial control computer 7 are installed in the electrical room 11 of the coke pusher. The second wireless communication device 6 is wirelessly connected to the first wireless communication device; the industrial control computer 7 is electrically connected to the second wireless communication device 6, which can be a wired connection or a wireless connection. The second wireless communication device 6 can be a separate component or integrated into the industrial control computer 7; this embodiment does not limit this. The industrial control computer 7 is responsible for receiving temperature measurement data from the second wireless communication device 6 and communicating with the PLC system 12 to exchange coke pusher 10 operating status data and temperature measurement data.

[0030] Battery box 3 is installed at the rear end of the push rod 10, providing power support for the entire temperature measurement system. Battery box 3 contains a battery pack and a charging management device. The battery pack powers the sensor box 2 and the fan, while the charging management device manages the charging process.

[0031] In addition, the temperature measurement system may also include: a power connection device 4, installed at the rear end of the focus pusher 10. This device automatically connects to the power supply when the focus pusher 10 is in its original position, charging the battery pack in the battery box 3 and providing power for the system's standby state. The battery pack only supplies power to the parts that move with the focus pusher 10 during the focus pushing process (including: the infrared temperature measuring instrument, data sampling device, first wireless communication device, high-efficiency fan 8, and other auxiliary sensors, etc., housed in the sensor box 2 mounted on the focus pusher 10). When the focus pusher 10 leaves its original position during the focus pushing process, the fixed power supply is disconnected, and the system is powered by the battery.

[0032] In another embodiment, the second wireless communication device 6 communicates wirelessly with the first wireless communication device via a communication antenna. Preferably, the communication antenna is a directional antenna 5. The second wireless communication device 6 communicates wirelessly with the first wireless communication device through a point-to-point wireless network composed of the directional antennas 5. The directional antenna 5 includes a first directional antenna and a second directional antenna, which are installed in pairs on the working line of the focus pusher 10. The first directional antenna is installed on the focus pusher 10, and the second directional antenna is installed on the focus pusher body. The first wireless communication device is connected to the first directional antenna via a coaxial feed line, and the second directional antenna is connected to the second wireless communication device 6 in the electrical room 11 via a feed line. The first directional antenna and the second directional antenna are always oriented relative to each other during the focus push process to ensure signal stability.

[0033] In another embodiment, in addition to the above-described structure, the temperature measurement system also includes: a high-efficiency fan 8 installed in the ambient temperature region at the rear end of the pusher rod 10, which pressurizes ambient temperature air and sends it into the distribution manifold for further distribution to each fiber optic temperature probe line. In this embodiment, the sealed fiber optic pipeline 9, in addition to protecting the optical fiber, also serves to deliver purge and cooling air to the fiber optic temperature probe 1. Its front end is connected to the fiber optic temperature probe purge pipe, and its rear end, through a T-junction, outputs optical fiber to the sensor box 2 at one end and connects to the high-efficiency air compressor manifold at the other end.

[0034] This invention replaces power and communication cables with battery power and wireless communication technology. Temperature measurement data is transmitted wirelessly to an onboard system, which includes an industrial control computer that records and analyzes the data, providing optimization guidance for the heating system. Through the coordinated operation of these core components, this invention achieves real-time and accurate measurement of the furnace wall temperature in the coke oven carbonization chamber. The data is then transmitted wirelessly to the industrial control computer for analysis and processing, providing a strong guarantee for the efficient and stable operation of the coke oven.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temperature measurement system for the furnace wall of a coke oven carbonization chamber, characterized in that, include: A heat insulation box is installed at the rear of the coking head of the coking rod (10). A fiber optic temperature probe (1) is installed in the heat insulation box. The fiber optic temperature probe (1) is connected to the sensor box (2) at the normal temperature zone of the tail end of the coking rod (10) through a sealed fiber optic pipeline (9). The sensor box (2) installed at the end of the coke pusher (10) in the ambient temperature zone integrates an infrared temperature measuring instrument, a data sampling device and a first wireless communication device. A second wireless communication device (6) and an industrial computer (7) are installed in the electrical control room. The second wireless communication device (6) is wirelessly connected to the first wireless communication device. The second wireless communication device (6) is electrically connected to the industrial computer (7). The industrial computer (7) is electrically connected to the PLC system (12). A battery box (3) is installed at the tail end of the push rod (10), and the battery box (3) contains a battery pack and a charging management device for powering the sensor instrument box (2).

2. The temperature measurement system for the furnace wall of a coke oven carbonization chamber according to claim 1, characterized in that, Also includes: A high-efficiency fan (8) installed in the ambient temperature area at the rear end of the pusher rod (10) pressurizes the ambient temperature air and sends it into the distribution manifold for distribution to each fiber optic temperature probe pipeline.

3. The coke oven carbonization chamber wall temperature measurement system according to claim 2, characterized in that, The sealed optical fiber pipeline (9) is connected to the purge tube of the optical fiber temperature probe at the front end, and the optical fiber is output to the sensor instrument box (2) at one end through a three-way structure at the rear end, and connected to the high-efficiency air compressor fan manifold at the other end.

4. The coke oven carbonization chamber wall temperature measurement system according to claim 1, characterized in that, The insulated enclosure consists of a stainless steel outer shell, a mica insulation layer, an aerogel insulation layer, and a stainless steel inner shell, arranged from the outside to the inside. The outer shell and the inner shell are connected by an inlet pipe and a fiber optic temperature probe acquisition pipe. The extended part of the fiber optic temperature probe acquisition pipe also serves as a mounting lug to fix the insulated enclosure to the mounting plate.

5. The coke oven carbonization chamber wall temperature measurement system according to claim 1, characterized in that, Also includes: Communication antenna.

6. The coke oven carbonization chamber wall temperature measurement system according to claim 5, characterized in that, The communication antenna is a directional antenna (5); the directional antenna (5) includes a first directional antenna and a second directional antenna. The two antennas are installed in pairs on the working line of the focus pusher rod. The first directional antenna is installed on the focus pusher rod, and the second directional antenna is installed on the focus pusher body. The first wireless communication device is connected to the first directional antenna through a coaxial feed line, and the second directional antenna is connected to the second wireless communication device (6) in the electrical room (11) through a feed line. The first directional antenna and the second directional antenna are always oriented relative to each other during the focus pusher process.

7. The coke oven carbonization chamber wall temperature measurement system according to claim 1, characterized in that, Also includes: A power connection device (4) is installed at the tail end of the push rod (10). The power connection device (4) automatically connects to the power source when the push rod (10) is in its original position, to charge the battery pack and to provide power for the system standby state.

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