On-line adjusting coke oven temperature measuring device

Abstract

The utility model relates to an on-line adjustment coke oven temperature measuring device, which comprises a lens part, an oven cover, a connecting seat, connecting bolts and adjusting jackscrews, the connecting seat is composed of a sleeve and a base which are integrally connected, the base is embedded on the oven cover and is fixed through a plurality of connecting bolts, the base is screwed with a plurality of adjusting jackscrews, and the adjusting jackscrews are connected with the lens part. The adjusting jackscrew is connected with the furnace cover in an abutting mode, and the lens part is connected with the sleeve. Compared with the prior art, the utility model has the following beneficial effects: 1) the device can adjust and correct the acquisition aiming position on line at any time in the operation process, and improves the temperature measurement precision and stability; and 2) the structure is simplified, the size of the temperature measuring device is greatly reduced, the manufacturing cost is reduced, and the consumption of cooling purge gas is reduced at the same time. And 3) the height is optimized and reduced, so that the passing adaptability of equipment such as different furnace top carts and the like is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of temperature measurement of vertical flues in coke oven combustion chambers, and particularly relates to an on-line adjustable coke oven temperature measurement device with a small volume. Background Technique

[0002] The temperature of the vertical flue is an important technological parameter for coke oven production and optimization control, and is also an important indicator for quantifying the heating level of the coke oven. Its control is directly related to coke quality, output and the service life of the coke oven. Accurate control requires accurate temperature measurement as a guarantee. With the wide application of infrared on-line thermometers in coke oven vertical flues in recent years, optical lenses for vertical flue temperature measurement have also been widely used.

[0003] At present, the optical lenses of the vertical flue temperature measurement devices used in the coking industry are divided into refractive type and direct type according to the optical signal transmission path, and are divided into adjustable type and non-adjustable type according to whether the acquisition aiming position can be adjusted. The non-adjustable type cannot adjust and correct the acquisition position online at any time when the lens is offset due to the expansion and deformation of the furnace body and the vibration of the top carriage during the operation of the temperature measurement device, which has a great impact on the measurement accuracy. The adjustable type has a large volume due to the ball bearing structure for adjusting the lens angle inside, and the nitrogen consumption for cooling and purging the lens device is also large. Moreover, it has a large height and protrudes far above the furnace cover surface, affecting the purging and heat dissipation effect and the passage of equipment such as the top smoke guide vehicle and the coal charging vehicle on the furnace top. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an on-line adjustable coke oven temperature measurement device, which adopts a top screw fine adjustment design to ensure that it can adjust and correct the acquisition aiming position online at any time during operation, simplifies the optical lens structure, and greatly reduces the volume and height of the temperature measurement device. While improving the temperature measurement accuracy and stability, it reduces the gas consumption for cooling and purging, and has better adaptability to the passage of the top carriage on the furnace top.

[0005] To achieve the above purpose, the utility model is realized by adopting the following technical solutions:

[0006] An on-line adjustable coke oven temperature measurement device includes a lens part, a furnace cover, a connecting seat, connecting bolts, and adjusting top screws. The connecting seat is composed of a sleeve and a base connected integrally. The base is embedded in the furnace cover and fixed by a plurality of connecting bolts. A plurality of adjusting top screws are screwed on the base, the adjusting top screws are in contact with the top of the furnace cover, and the lens part is connected to the sleeve.

[0007] The lens part includes a lens outer cylinder, a lens holder, a positioning lens, a refractive lens, an optical fiber interface, a lens, and a protective lens. The lens holder is arranged at the upper end of the lens outer cylinder, and the bottom of the lens holder is beveled. The positioning lens is fixed to the upper end of the lens holder, the refractive lens is fixed to the bottom of the lens holder, the optical fiber interface is arranged on the side wall of the lens outer cylinder and below the lens holder. The protective lens and the lens are sequentially arranged from bottom to top at the lower end of the lens outer cylinder, and the lens is below the optical fiber interface.

[0008] A protective cover is connected to the uppermost end of the lens outer cylinder by a thread.

[0009] An air source connector is connected to the side of the sleeve, and the air source connector is below the lens part.

[0010] An outlet pipe is connected to the bottom of the furnace cover.

[0011] A sealing ring is arranged between the side of the base and the furnace cover, and a heat-insulating gasket is arranged between the bottom surface of the base and the furnace cover.

[0012] There are three adjusting setscrews, which are evenly distributed in the circumferential direction.

[0013] There is a spring washer between the connecting bolt and the base.

[0014] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0015] 1) The present utility model can adjust and correct the acquisition and aiming position online at any time during operation, improving the temperature measurement accuracy and stability.

[0016] 2) The present utility model simplifies the structure, greatly reduces the volume of the temperature measurement device, reduces the production cost, and reduces the amount of cooling and purging gas.

[0017] 3) The present utility model optimizes and reduces the height, making it more adaptable to different equipment such as the top car of the furnace. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an online adjustable coke oven temperature measurement device of the present utility model.

[0019] In the figure: 1 - protective cover, 2 - lens holder, 3 - refractive lens, 4 - connecting seat, 5 - air source connector, 6 - adjusting setscrew, 7 - furnace cover, 8 - sealing ring, 9 - outlet pipe, 10 - heat-insulating gasket, 11 - spring washer, 12 - connecting bolt, 13 - protective lens, 14 - lens, 15 - optical fiber interface, 16 - positioning lens, 17 - lens outer cylinder. Detailed Embodiment

[0020] The specific embodiments of the present utility model will be further described below in conjunction with the accompanying drawings:

[0021] See Figure 1 , an on-line adjustable coke oven temperature measuring device, including a lens part, a furnace cover 7, a connecting seat 4, connecting bolts 12, and adjusting set screws 6. The connecting seat 4 is composed of a sleeve and a base connected integrally. The base is embedded in the furnace cover 7 and fixed by a plurality of connecting bolts 12. A plurality of adjusting set screws 6 are screwed on the base, and the adjusting set screws 6 are in contact with the top of the furnace cover 7. The lens part is connected to the sleeve.

[0022] The lens part includes a lens outer cylinder 17, a lens holder 2, a positioning lens 16, a refracting lens 3, an optical fiber interface 15, a lens 14, and a protective lens 13. The lens holder 2 is arranged at the upper end of the lens outer cylinder 17. The bottom of the lens holder 2 is a slope. The positioning lens 16 is fixed at the upper end of the lens holder 2. The refracting lens 3 is fixed at the bottom of the lens holder 2. The optical fiber interface 15 is arranged on the side wall of the lens outer cylinder 17 and below the lens holder 2. At the lower end of the lens outer cylinder 17, the protective lens 13 and the lens 14 are arranged in sequence from bottom to top. The lens 14 is below the optical fiber interface 15.

[0023] A protective cover 1 is connected by a thread at the uppermost end of the lens outer cylinder 17.

[0024] The lower part of the lens outer cylinder 17 is sleeved in the sleeve of the connecting seat 4. There are two protective lenses 13, which are arranged at intervals up and down. An air source joint 5 is connected to the side of the sleeve. The air source joint 5 is below the lowermost protective lens 13.

[0025] An outlet pipe 9 is connected to the bottom of the furnace cover 7.

[0026] A sealing ring 8 is arranged between the side of the base and the furnace cover 7. A heat-insulating gasket 10 is arranged between the bottom surface of the base and the furnace cover 7.

[0027] There are three adjusting set screws 6, which are evenly distributed in the circumferential direction.

[0028] There is a spring washer 11 between the connecting bolt 12 and the base.

[0029] The lens part is installed above the connecting seat 4. The lower end base of the connecting seat 4 is connected to the furnace cover 7 through the connecting bolt 12 and the spring washer 11. The adjusting set screw 6 is directly screwed to the base of the connecting seat 4. The bottom of the adjusting set screw 6 is in contact with the top of the furnace cover 7. When the device is running, the furnace cover 7 is placed on the viewing hole of the coke oven vertical flue.

[0030] The working principle of the present utility model is as follows:

[0031] The temperature measuring device collects and converges infrared light signals through the lens 14. After being refracted by the refraction lens 3, the signals are transmitted to the optical fiber at the optical fiber interface 15, and then sent to the temperature measuring instrument in the instrument protection box through a long-distance high-temperature resistant power optical fiber. The gas source joint 5 on the connecting seat 4 is connected to the purge and cooling gas pipeline to cool down and purge the lens, preventing damage to the equipment due to excessive temperature and preventing furnace dust from adhering to the protective lens 13 and affecting signal collection. When it is necessary to adjust the acquisition position angle online in case of lens deviation caused by furnace body expansion and deformation or top car vibration during the operation of the temperature measuring device, the connecting bolt 12 can be loosened appropriately first, and then the 3 adjusting jackscrews 6 evenly distributed on the circumference of the base are screwed. The adjusting jackscrew 6 is threadedly connected to the base, and the adjusting jackscrew 6 abuts against the furnace cover 7. By adjusting the screwing angles of each adjusting jackscrew 6, the included angle between the connecting seat 4 and the furnace cover 7 can be finely adjusted. Since the lens is far from the infrared light signal acquisition point, a small angle change can bring about flexible adjustment of the acquisition position. After adjustment, tighten the connecting bolt 12, and the spring washer 11 plays a role in preventing loosening. A sealing ring 8 is designed between the side of the base of the connecting seat 4 and the groove structure of the furnace cover 7 to ensure the sealing effect when a certain small included angle is formed between the furnace cover 7 and the connecting seat 4 after adjustment.

[0032] Function description of each component of the temperature measuring device: The protective cover 1 plays a role in dust and water protection. The positioning lens 16 plays a role in positioning and aiming. The lens holder 2 serves as a support for installing the positioning lens 16 and the refraction lens 3 and fixes the refraction angle. The optical fiber interface 15 is used to connect the optical fiber connector. The refraction lens 3 is used to refract the collected infrared light signals. The lens 14 is used to collect and converge infrared light signals. The protective lens 13 is used to protect the lens 14. The connecting seat 4 is used to connect the lens part to the furnace cover 7 and introduce the cooling and purging gas. The gas source joint 5 is used to connect the cooling and purging gas pipeline. The connecting bolt 12 is used for the installation and fixation between the connecting seat 4 and the furnace cover 7. The spring washer 11 is used to prevent loosening of the connecting bolt 12. The adjusting jackscrew 6 is used to finely adjust the included angle between the connecting seat 4 and the furnace cover 7. The heat insulation and sealing gasket 10 is used to block heat transfer from the outlet pipe and the furnace cover 7 and seal the leakage of the cooling and purging gas. The sealing ring 8 is used to seal the leakage of the cooling and purging gas. The furnace cover 7 is used to install the entire temperature measuring device on the viewing hole of the vertical flue of the coke oven. The outlet pipe 9 is used to converge the purging gas and block the laterally flowing dust.

Claims

1. An online adjustable coke oven temperature measuring device, characterized in that It includes a lens part, a furnace cover, a connecting seat, connecting bolts, and adjusting set screws. The connecting seat is composed of a sleeve and a base connected integrally. The base is embedded in the furnace cover and fixed by a plurality of connecting bolts. A plurality of adjusting set screws are screwed on the base, and the adjusting set screws are in contact with the top of the furnace cover. The lens part is connected to the sleeve.

2. The on-line adjustable coke oven temperature measuring device according to claim 1, characterized in that, The lens part includes a lens outer cylinder, a lens holder, a positioning lens, a refracting lens, an optical fiber interface, a lens, and a protective lens. The lens holder is arranged at the upper end of the lens outer cylinder, and the bottom of the lens holder is a slope. The positioning lens is fixed at the upper end of the lens holder, and the refracting lens is fixed at the bottom of the lens holder. The optical fiber interface is arranged on the side wall of the lens outer cylinder and below the lens holder. A protective lens and a lens are sequentially arranged from bottom to top at the lower end of the lens outer cylinder, and the lens is below the optical fiber interface.

3. The on-line adjustable coke oven temperature measuring device according to claim 2, characterized in that, A protective cover is connected to the uppermost end of the lens outer cylinder by a thread.

4. An online adjustable coke oven temperature measuring device according to claim 1, characterized in that, An air source joint is connected to the side of the sleeve, and the air source joint is below the lens part.

5. An online adjustable coke oven temperature measuring device according to claim 1, characterized in that, An outlet pipe is connected to the bottom of the furnace cover.

6. An online adjustable coke oven temperature measuring device according to claim 1, characterized in that, A sealing ring is arranged between the side of the base and the furnace cover, and a heat-insulating gasket is arranged between the bottom surface of the base and the furnace cover.

7. An online adjustable coke oven temperature measuring device according to claim 1, characterized in that, There are three adjusting set screws, which are evenly distributed in the circumferential direction.

8. An online adjustable coke oven temperature measuring device according to claim 1, characterized in that, There is a spring washer between the connecting bolt and the base.

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