A coke oven wall automatic temperature measuring device

Abstract

The invention discloses an automatic temperature measuring device for a coke oven wall, comprising a high-temperature resistant optical probe and an integrated optical fiber system and a coke pushing rod. The high-temperature resistant optical probe and the integrated optical fiber system are installed at the front end of the coke pushing rod through a mounting piece, and the high-temperature resistant optical probe and the integrated optical fiber system are composed of a first group of temperature measuring lenses, a second group of temperature measuring lenses, a third group of temperature measuring lenses and an optical fiber line tube. The first group of temperature measuring lenses, the second group of temperature measuring lenses and the third group of temperature measuring lenses are all composed of two lens assemblies that are symmetrical to each other about the optical fiber line tube; the lens assembly comprises a high-temperature optical lens group, an optical rod, an optical fiber and a protective shell, monitors the oven wall temperature in real time, and directly reflects the uniformity of coke oven heating through the oven wall temperature, and directly reflects the condition of the oven wall, providing the most direct support for the repair and maintenance of the oven wall.

Description

Technical Field

[0001] The invention relates to the technical field of furnace wall temperature measurement, and in particular to an automatic temperature measurement device for a coke oven wall. Background Art

[0002] The coke oven wall temperature is one of the most important technical indicators of coking production and a major parameter of the coke oven equipment operating status. Due to the narrow space of the carbonization chamber and the high ambient temperature, there has been no effective detection method, and even manual measurement is very difficult.

[0003] However, the furnace wall temperature most directly reflects the uniformity of coke oven heating and has great guiding significance for production; the furnace wall temperature directly reflects the condition of the furnace wall and provides the most direct support for the repair and maintenance of the furnace wall. Therefore, an automatic temperature measuring device for the coke oven wall is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic temperature measuring device for a coke oven wall, which monitors the temperature of the furnace wall in real time, and directly reflects the uniformity of coke oven heating through the furnace wall temperature, and directly reflects the condition of the furnace wall, providing the most direct support for the repair and maintenance of the furnace wall, and solving the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic temperature measuring device for a coke oven wall, comprising a high temperature resistant optical probe and an integrated optical fiber system and a coke pushing rod, wherein the high temperature resistant optical probe and the integrated optical fiber system are installed at the front end of the coke pushing rod through a mounting member, and the high temperature resistant optical probe and the integrated optical fiber system are composed of a first group of temperature measuring lenses, a second group of temperature measuring lenses, a third group of temperature measuring lenses and an optical fiber line tube, wherein the first group of temperature measuring lenses, the second group of temperature measuring lenses and the third group of temperature measuring lenses are all composed of two lens assemblies that are symmetrical to each other about the optical fiber line tube, and are evenly spaced and distributed at the upper end, the middle part and the lower end of the optical fiber line tube, and the two lens assemblies are respectively located on both sides of the optical fiber line tube;

[0006] The lens assembly includes a high-temperature optical lens set, an optical rod, an optical fiber and a protective shell. The high-temperature optical lens set is located on one side of the optical rod. One end of the optical rod is connected to the optical fiber, and the optical fiber is located in an optical fiber line tube. The outside of the high-temperature optical lens set is connected with a protective shell. The outside of the protective shell and the optical fiber line tube are connected with a stainless steel protective plate, and an aerogel layer is filled between the protective shell, the optical fiber line tube and the stainless steel protective plate.

[0007] Preferably, the lens assembly is closely attached to the side wall of the coke oven wall.

[0008] Preferably, the protective shell includes a stainless steel wire tube, a clamping tooth, a wire hole, a sleeve, a connecting tube and an air hole. A high-temperature optical lens group is installed in the middle of the stainless steel wire tube, and one end of the stainless steel wire tube is connected to the connecting tube. A wire hole and an air hole are arranged inside the connection between the stainless steel wire tube and the connecting tube, and a clamping tooth is arranged outside. The sleeve is engaged with the clamping tooth.

[0009] Preferably, the high temperature resistant optical probe and optical fiber integrated system is connected to an instrument system via optical fiber.

[0010] Preferably, the blowing hole is connected to an air supply system.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The automatic temperature measuring device for the coke oven wall of the present invention adopts a high-temperature optical probe and an optical fiber integrated system that can withstand high temperatures. The short-term temperature resistance can reach 600°C and the long-term temperature resistance can reach 400°C. The entire temperature measuring device has no major changes to the coke pushing rod, but only a wire tube is fixed on the side wall of the coke pushing rod, which has no effect on the coke pushing rod and peripheral equipment. The temperature measuring device is installed using the original equipment, which saves investment, and monitors the furnace wall temperature in real time. The furnace wall temperature directly reflects the uniformity of coke oven heating and the condition of the furnace wall, providing the most direct support for the repair and maintenance of the furnace wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structure diagram of the present invention;

[0014] Figure 2 A connection diagram of the lens assembly and the optical fiber line tube of the present invention;

[0015] Figure 3 It is a structural diagram of the lens assembly of the present invention;

[0016] Figure 4 It is a structural diagram of the protective shell of the present invention.

[0017] In the figure: 1. High temperature resistant optical probe and optical fiber integrated system; 11. First group of temperature measuring lenses; 12. Second group of temperature measuring lenses; 13. Third group of temperature measuring lenses; 14. Optical fiber conduit; 15. Lens assembly; 151. High temperature optical lens set; 152. Optical rod; 153. Optical fiber; 154. Protective shell; 1541. Stainless steel conduit; 1542. Gear; 1543. Wire hole; 1544. Sleeve; 1545. Connecting tube; 1546. Blowing hole; 16. Stainless steel protective plate; 17. Aerogel layer; 2. Focus pushing rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-2 An automatic temperature measuring device for a coke oven wall comprises a high temperature resistant optical probe and optical fiber integrated system 1 and a coke pusher 2. The high temperature resistant optical probe and optical fiber integrated system 1 is installed at the front end of the coke pusher 2 through a mounting member. The short-term temperature resistance can reach 600°C and the long-term temperature resistance can reach 400°C. The furnace wall temperature is monitored in real time, and the uniformity of the coke oven heating and the condition of the furnace wall are directly reflected through the furnace wall temperature, which provides the most direct support for the repair and maintenance of the furnace wall. The entire temperature measuring device has no major changes to the coke pusher 2, except that a wire tube is fixed on the side wall of the coke pusher 2. There is no impact on the focus pushing rod 2 and the surrounding equipment. The original equipment is used to install the temperature measuring device, which saves investment. The high-temperature resistant optical probe and optical fiber integrated system 1 is composed of a first group of temperature measuring lenses 11, a second group of temperature measuring lenses 12, a third group of temperature measuring lenses 13 and an optical fiber tube 14. The first group of temperature measuring lenses 11, the second group of temperature measuring lenses 12, and the third group of temperature measuring lenses 13 are all composed of two lens assemblies 15 that are symmetrical to each other about the optical fiber tube 14, and are evenly spaced and distributed at the upper end, middle part and lower end of the optical fiber tube 14. The two lens assemblies 15 are respectively located on both sides of the optical fiber tube 14.

[0020] See also Figure 3The lens assembly 15 includes a high-temperature optical lens group 151, an optical rod 152, an optical fiber 153 and a protective shell 154. The high-temperature optical lens group 151 is located on one side of the optical rod 152. One end of the optical rod 152 is connected to the optical fiber 153. The optical fiber 153 is located in the optical fiber line tube 14. The external part of the high-temperature optical lens group 151 is sleeved with a protective shell 154. The external part of the protective shell 154 and the optical fiber line tube 14 are sleeved with a stainless steel protective plate 16. An aerogel layer 17 is filled between the protective shell 154, the optical fiber line tube 14 and the stainless steel protective plate 16. The lens assembly 15 is closely attached to the side wall of the coke oven wall, and the furnace wall temperature is detected by optical temperature measurement, and the temperature information is transmitted to the optical fiber 153 in the form of an optical signal. The instrument system, the high temperature resistant optical probe and the optical fiber integrated system 1 are connected to the instrument system through the optical fiber 153. The instrument system converts the optical signal transmitted by the optical fiber 153 into an electrical signal and transmits the electrical signal into the computer. Specifically, the optical signal on the infrared optical fiber 153 enters the photosensitive element, passes through the logarithmic amplifier, enters the signal processor, obtains the peak value or instantaneous value, and finally the signal directly enters the computer. The instrument is not resistant to high temperatures. The general working temperature of the instrument is about 60°C and is placed at the end of the pushing rod 2; the output signal of the instrument is directly connected to the wireless data transmission station and wirelessly transmitted to the central control room. The wireless data transmission station is also placed inside the end of the pushing rod 2 together with the instrument. The temperature at the end of the pushing rod 2 is basically the ambient temperature.

[0021] See also Figure 4, the protective shell 154 includes a stainless steel wire tube 1541, a clamping tooth 1542, a wire hole 1543, a sleeve 1544, a connecting tube 1545 and an air hole 1546. A high-temperature optical lens group 151 is installed in the middle of the stainless steel wire tube 1541, and one end of the stainless steel wire tube 1541 is connected to the connecting tube 1545. The connection between the stainless steel wire tube 1541 and the connecting tube 1545 is provided with a wire hole 1543 and an air hole 1546. The air hole 1546 is connected to an air supply system. The air hole 1546 is located in front of the optical lens and has a diameter of 1 mm. The optical lens is air-cooled and purged to achieve the purpose of dust removal of the lens. A clamping tooth 1542 is provided on the outside, and the sleeve 1544 is engaged with the clamping tooth 1542. Among them, the protective shell 154 is a component of the heat insulation protection system. The furnace wall temperature of the carbonization chamber is about 1000°C. Rod 2 is in a narrow area and is greatly affected by radiant heat. The surface temperature of the pushing rod 2 is also close to 500-600°C. If the pushing failure state occurs, the surface temperature is even higher. Therefore, it is very necessary to provide heat insulation protection for the optical lens and optical fiber 153. The protection is divided into three layers. The first layer is a stainless steel wire tube 1541. Compressed air passes through the middle of the wire tube to cool the stainless steel tube and optical fiber 153 and purge the lens. The second layer is aerogel protection. The thermal insulation effect of aerogel is very good. The outer wall of the stainless steel wire tube 1541 is wrapped with 20mm aerogel to reduce heat transfer to the stainless steel. The third layer is stainless steel plate protection. The aerogel is fixed on the outermost side with a stainless steel protective plate 16. In the high temperature area of ​​1000°C, the main way of heat transfer is thermal radiation. The bright stainless steel plate can reflect heat very well and reduce the speed of heat transfer to the inside.

[0022] Working principle: The high-temperature resistant optical probe and optical fiber integrated system 1 is installed at the front end of the coke pushing rod 2 through the mounting parts, and is insulated with aerogel and blown, so as to adapt to the high temperature environment of the coke oven carbonization chamber. The high-temperature optical lens is divided into left and right sides, and 6 measuring points at the top, middle and bottom. The furnace wall temperature is detected by optical temperature measurement, and the temperature information is transmitted to the instrument system in the form of optical signal by optical fiber 153. The instrument system converts the optical signal transmitted by optical fiber 153 into an electrical signal and transmits the electrical signal to the computer.

[0023] In summary: the automatic temperature measuring device for the coke oven wall of the present invention adopts a high-temperature resistant optical probe and optical fiber integrated system 1 that can withstand high temperatures. The short-term temperature resistance can reach 600°C and the long-term temperature resistance can reach 400°C. The entire temperature measuring device has no major changes to the coke pushing rod 2, except that a wire tube is fixed on the side wall of the coke pushing rod 2, which has no effect on the coke pushing rod 2 and the surrounding equipment. The temperature measuring device is installed using the original equipment, which saves investment, monitors the furnace wall temperature in real time, and directly reflects the uniformity of the coke oven heating through the furnace wall temperature, and directly reflects the condition of the furnace wall, providing the most direct support for the repair and maintenance of the furnace wall.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coke oven wall automatic temperature measuring device, comprising a high temperature resistant optical probe and optical fiber integrated system (1) and a coke pusher (2), characterized in that: The high temperature resistant optical probe and optical fiber integrated system (1) is installed at the front end of the focus push rod (2) through a mounting member, and the high temperature resistant optical probe and optical fiber integrated system (1) is composed of a first group of temperature measuring lenses (11), a second group of temperature measuring lenses (12), a third group of temperature measuring lenses (13) and an optical fiber line tube (14), wherein the first group of temperature measuring lenses (11), the second group of temperature measuring lenses (12) and the third group of temperature measuring lenses (13) are each composed of two lens assemblies (15) that are symmetrical with respect to the optical fiber line tube (14) and are evenly spaced and distributed at the upper end, the middle part and the lower end of the optical fiber line tube (14), and the two lens assemblies (15) are respectively located on both sides of the optical fiber line tube (14); The lens assembly (15) comprises a high-temperature optical lens group (151), an optical rod (152), an optical fiber (153) and a protective shell (154); the high-temperature optical lens group (151) is located on one side of the optical rod (152); one end of the optical rod (152) is connected to the optical fiber (153); the optical fiber (153) is located in an optical fiber line tube (14); the exterior of the high-temperature optical lens group (151) is sleeved with a protective shell (154); the exteriors of the protective shell (154) and the optical fiber line tube (14) are sleeved with a stainless steel protective plate (16); an aerogel layer (17) is filled between the protective shell (154), the optical fiber line tube (14) and the stainless steel protective plate (16); and the lens assembly (15) is closely attached to the side wall of the coke oven wall; The protective housing (154) comprises a stainless steel wire tube (1541), a latching tooth (1542), a wire hole (1543), a sleeve (1544), a connecting tube (1545) and an air hole (1546); a high-temperature optical lens assembly (151) is installed in the middle of the stainless steel wire tube (1541), and one end of the stainless steel wire tube (1541) is connected to the connecting tube (1545); a wire hole (1543) and an air hole (1546) are provided inside the connection between the stainless steel wire tube (1541) and the connecting tube (1545), and a latching tooth (1542) is provided outside; the sleeve (1544) is engaged with the latching tooth (1542).

2. The automatic temperature measuring device for a coke oven wall according to claim 1, characterized in that: The high temperature resistant optical probe and optical fiber integrated system (1) is connected to an instrument system via an optical fiber (153).

3. The coke oven wall automatic temperature measuring device according to claim 1, characterized in that: The blowing hole (1546) is connected to an air supply system.

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