Hearth fire observing device

Abstract

The hearth fire observation device comprises an observation cylinder and a reflection assembly, the observation cylinder comprises a first extension part and a second extension part, the axis of the first extension part and the axis of the second extension part are arranged in a non-collinear mode, and the first extension part is connected into a furnace wall and can rotate in the furnace wall along the axis of the first extension part; a first observation opening is formed in the first extension part, the second extension part is located in the hearth, and a second observation opening is further formed in the second extension part; the reflection assembly is located in the observation cylinder and used for reflecting an image in the second observation port to the first observation port. According to the hearth fire observation device, the observation barrel is rotationally connected into the fire observation hole, so that a worker does not need to open the fire observation hole when needing to observe flames in a hearth, and the observation barrel of the hearth fire observation device can rotate, so that the worker has a better visual field when observing the flames, and the work efficiency is improved. And a better observation effect is obtained.

Description

Technical Field

[0001] The present disclosure relates to the technical field of boilers, and in particular to a furnace fire viewing device. Background Art

[0002] Boilers are usually installed in power plants. During the operation of the boiler, the staff needs to observe the flames in the boiler burner area and the flame color in the furnace to determine the combustion of coal powder in the boiler, as well as to observe the coking condition in the furnace and whether there are any leaks in the water-cooled wall area pipes.

[0003] In the related art, the furnace fire viewing device usually requires opening the boiler for fire viewing. However, since the boiler is usually in a negative pressure state, cold air will be sucked into the furnace when the fire viewing hole is opened, affecting the efficiency of the boiler. In addition, after the boiler has been used for a period of time, ash and coke will often accumulate in the fire viewing hole. Before observing the fire, the staff must carry a decoking shovel to perform decoking operations, which also wastes unnecessary manpower. Utility Model Content

[0004] The purpose of the present disclosure is to provide a furnace fire viewing device, which can be used for observing the furnace fire without opening the fire viewing hole.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a furnace fire viewing device, comprising:

[0006] An observation tube, the observation tube comprising a first extension portion and a second extension portion, the axis of the first extension portion and the axis of the second extension portion are not arranged in a colinear manner, the first extension portion is connected to the furnace wall and can rotate along its own axis in the furnace wall, the first extension portion is provided with a first observation port, the second extension portion is located in the furnace chamber, and the second extension portion is also provided with a second observation port;

[0007] A reflection component is located in the observation tube and is used to reflect the image in the second observation port to the first observation port.

[0008] Optionally, the axial directions of the first extension portion and the second extension portion are perpendicular to each other, the first extension portion extends in a horizontal direction, and the second extension portion extends in a vertical direction.

[0009] Optionally, a third extension portion is further included, the third extension portion is connected to an end of the second extension portion that is not connected to the first extension portion, the third extension portion extends in a horizontal direction, and the second observation port is located in the third extension portion.

[0010] Optionally, a sealing ring is provided at the connection between the first extension portion and the furnace wall for sealing the connection between the first extension portion and the furnace wall, and at least two sealing rings are provided, which are respectively located at the inner and outer sides of the furnace wall.

[0011] Optionally, the sealing ring is made of high temperature resistant graphite material.

[0012] Optionally, it further includes a bearing, and the first extension section is rotatably connected to the furnace wall via the bearing.

[0013] Optionally, the reflective assembly includes at least two reflectors, and the reflectors are fixedly connected in the observation tube.

[0014] Optionally, the axes of the first extension portion and the second extension portion are perpendicular to each other, the first extension portion extends in a horizontal direction, the second extension portion extends in a vertical direction, two reflectors are provided, the two reflectors are arranged at 45°, and one of the reflectors is located in the first extension portion, and the other reflector is located in the second extension portion.

[0015] Optionally, a protective sheet is provided at the second observation port, and the protective sheet is made of a transparent material.

[0016] Optionally, a rotating handle is further provided on the first extension portion, and the rotating handle is detachably connected to the first extension portion.

[0017] Compared with the prior art, the advantages of the utility model are as follows: the furnace fire viewing device of the utility model includes an observation tube and a reflection component, the observation tube includes a first extension portion and a second extension portion, wherein the first extension portion is rotatably connected to the furnace wall and can rotate around its own axis, the second extension portion is located in the furnace, and the first extension portion and the second extension portion are respectively provided with a first observation port and a second observation port, and the reflection component can reflect the image in the second observation port to the first observation port. The furnace fire viewing device of the utility model is connected to the fire viewing hole by rotation of the observation tube, so that when the staff needs to observe the flame in the furnace, there is no need to open the fire viewing hole, causing external cold air to enter the furnace and affect the combustion of the flame, and can also reduce the number of times the staff cleans the fire viewing hole, and because the observation tube of the furnace fire viewing device of the utility model can be rotated, it can also enable the staff to have a better field of view when observing the flame and obtain a better observation effect.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a cross-sectional view of a furnace fire viewing device provided in an exemplary embodiment of the present disclosure.

[0021] Description of Reference Numerals

[0022] 1-observation tube; 11-first extension; 111-first observation port; 112-rotation handle; 12-second extension; 121-second observation port; 122-protective sheet; 13-third extension;

[0023] 2-reflection assembly; 21-reflector; 3-sealing ring; 4-bearing. DETAILED DESCRIPTION

[0024] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0025] In the present disclosure, unless otherwise stated, directional words such as "upper, lower, high, low, top, bottom" generally refer to the position of the corresponding component or structure in the direction of gravity. Figure 1 The directions of the drawings shown. "Inside and outside" refer to the inside and outside of the corresponding component outline. In addition, it should be noted that the terms used, such as "first, second", etc., are to distinguish one element from another and have no order or importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0026] For ease of understanding, please refer to the attached Figure 1 The specific structure and working principle of the present invention are described in detail with reference to the drawings and embodiments.

[0027] The present invention relates to a furnace fire viewing device, which can avoid opening the fire viewing port when observing the flame in the furnace, so that the external cold air enters and affects the flame burning in the furnace. Figure 1The furnace fire viewing device disclosed in the present invention includes an observation tube 1 and a reflection component 2. The observation tube 1 can be cylindrical so as to cooperate with the fire viewing hole on the furnace wall. The observation tube 1 includes a first extension portion 11 and a second extension portion 12. The first extension portion 11 and the second extension portion 12 are not arranged in a colinear manner, so that the overall shape of the observation tube 1 is a broken line to obtain a larger fire viewing field, wherein the first extension portion 11 is connected to the furnace wall and can rotate along its own axis, and the second extension portion 12 is located in the furnace and can adjust its position in the furnace as the first extension portion 11 rotates.

[0028] The reflective component 2 is located in the observation tube 1, and a first observation port 111 is also provided on the first extension portion 11, and a second observation port 121 is provided on the second extension portion 12. The second observation port 121 is located in the furnace, and the fire in the furnace can be observed. The image observed in the second observation port 121 can be reflected to the first observation port 111 through the reflective component 2, so as to facilitate observation by the staff. The furnace fire viewing device disclosed in the present invention provides a rotatable observation tube 1 in the fire viewing hole, and observes the flame in the furnace through the observation tube 1. The position of the second extension portion 12 in the furnace can be adjusted by rotating the first extension portion 11 to obtain a larger fire viewing field. On the premise of obtaining a better fire viewing effect, it is also possible to avoid the fire viewing hole being opened during fire viewing to cause external cold air to enter, thereby affecting the burning of the flame. Moreover, since the observation tube 1 is located in the fire viewing hole, it is also possible to avoid the staff from frequently cleaning the fire viewing hole, thus saving manpower and material resources.

[0029] In one embodiment of the present disclosure, see Figure 1 , the first extension portion 11 and the second extension portion 12 are perpendicular to each other, and the first extension portion 11 extends in the horizontal direction, and the second extension portion 12 extends in the vertical direction. This arrangement can ensure that the length of the second extension portion 12 is the shortest under the same observation field of view. On the one hand, it can save materials to a certain extent, and on the other hand, it can also reduce the distance that the second extension portion 12 extends into the furnace, reduce the damage to the second extension portion 12 caused by the fire, and increase the service life of the furnace fire viewing device. Of course, in other embodiments, the first extension portion 11 and the second extension portion 12 can also be arranged at other angles, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0030] In one embodiment of the present disclosure, see Figure 1The observation tube 1 also includes a third extension portion 13, which is connected to the end of the second extension portion 12 that is not connected to the first extension portion 11, and the third extension portion 13 extends in the horizontal direction. The second observation port 121 is located in the third extension portion 13 in this embodiment. By providing the third extension portion 13, the fire viewing distance can be controlled without changing the angle between the second extension portion 12 and the first extension portion 11, so that the furnace fire viewing device of the present invention has better flexibility, and different lengths of the third extension portion 13 can be selected for observation according to the fire situation. In other embodiments, the third extension portion 13 can also be configured to be detachably connected to the second extension portion 12, so as to further improve the flexibility of the furnace fire viewing device of the present invention, and when using it, it is only necessary to replace different third extension portions 13 according to the flame situation.

[0031] In one embodiment of the present disclosure, see Figure 1 A sealing ring 3 is provided at the connection between the first extension part 11 and the furnace wall. The sealing ring 3 can seal the connection between the first extension part 11 and the furnace wall to prevent dust and harmful gases generated by combustion in the furnace from flowing out through the gap between the first extension part 11 and the furnace wall, causing harm to the staff. In this embodiment, two sealing rings 3 are provided, which are respectively located at the two ends of the connection between the first extension part 11 and the furnace wall, so as to seal the first extension part 11 from two places, increase the stability of the seal, and even if one of the sealing rings 3 fails, the other sealing ring 3 can ensure the sealing effect.

[0032] Since the sealing ring 3 is in the furnace wall, in order to ensure the sealing and service life during use, in one embodiment of the present disclosure, the sealing ring 3 is made of high-temperature resistant graphite material. Graphite has good high-temperature resistance, so that the sealing ring 3 will not be damaged even under the influence of the high temperature in the furnace, and the cost of graphite is low. After the sealing ring 3 is damaged, the replacement cost is also low. Of course, in other embodiments, the sealing ring 3 can also be made of other materials, such as metal materials, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0033] In one embodiment of the present disclosure, see Figure 1The furnace fire viewing device also includes a bearing 4, and the first extension portion 11 is rotatably connected to the furnace wall through the bearing 4. Rotation through the bearing 4 can ensure the stability of rotation, and the service life of the bearing is long, and the rotation effect is relatively stable and fine, so that the staff can rotate more accurately when rotating the first extension portion 11 to ensure that the second extension portion 12 can observe the flame situation that needs to be observed. Of course, in other embodiments, the first extension portion 11 can also be rotatably connected to the furnace wall in other ways, such as directly rotatably connected or connected through a sleeve, etc., which can be determined according to actual conditions, and the present disclosure does not limit this.

[0034] In one embodiment of the present disclosure, see Figure 1 , the reflection assembly 2 includes at least two reflectors 21, and the reflectors 21 are fixedly connected in the observation tube 1. The fixed connection method can be direct welding, or it can be detachably connected in the observation tube 1, for example, it can be connected through a slot. In this embodiment, a plurality of slots can be provided on the observation tube 1, and the reflectors 21 can select different slots for connection according to actual conditions to ensure that the reflectors 21 can present different angles according to actual conditions, so that the image in the second observation port 121 can be reflected to the first observation port 111 through the reflectors 21. Of course, in other embodiments, the reflection assembly 2 can also include other mechanical components, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0035] In one embodiment of the present disclosure, see Figure 1 The axes of the first extension part 11 and the second extension part 12 are perpendicular to each other, the first extension part 11 extends in the horizontal direction, and the second extension part 12 extends in the vertical direction. Two reflectors 21 are provided, and the two reflectors 21 are arranged at 45°, and one of the reflectors 21 is located in the first extension part 11, and the other reflector 21 is located in the second extension part 12. Through the above arrangement, it can be ensured that the length of the second extension part 12 is the shortest under the same observation field of view, which can save materials to a certain extent on the one hand, and can also reduce the distance of the second extension part 12 extending into the furnace on the other hand, reduce the damage of the furnace fire to the second extension part 12, and improve the service life of the furnace fire viewing device. In order to ensure that the image observed in the second observation port 121 can be reflected to the first observation port 111, the reflector 21 needs to be arranged at a 45° angle.

[0036] In one embodiment of the present disclosure, see Figure 1A protective sheet 122 is provided at the second observation port 121, and the protective sheet 122 is made of a transparent material. The protective sheet 122 can prevent dust and harmful gases in the furnace from flowing out of the furnace through the observation tube 1 and causing damage to the staff, and the protective sheet 122 is made of a transparent material, such as glass, and will not hinder the staff from observing the flame in the furnace. In this embodiment, the observation tube 1 is a cylinder, and the protective sheet 122 is a circular glass sheet, which is fixedly connected to the second observation port 121 to prevent harmful substances in the furnace from entering the observation tube 1.

[0037] In one embodiment of the present disclosure, see Figure 1 , a rotating handle 112 is provided on the first extension portion 11, and the staff can rotate the first extension portion 11 more conveniently by rotating the handle 112. The rotating handle 112 can also be set to be detachably connected to the first extension portion 11. When the staff installs the observation tube 1, the rotating handle 112 can be removed first to facilitate installation, and then the rotating handle 112 can be reinstalled after the installation is completed. In this embodiment, the rotating handle 112 is rod-shaped, and a round hole that can clamp the rod-shaped rotating handle 112 can be provided on the first extension portion 11. When installation is required, the rotating handle 112 can be inserted into the round hole. When disassembling, the rotating handle 112 can be pulled out of the round hole by pulling the rotating handle 112. Of course, in other embodiments, the rotating handle 112 can also be connected to the first extension portion 11 through other structures, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0038] When the furnace fire viewing device of the present disclosure is used, the observation tube 1 needs to be installed into the fire viewing hole first. During the installation process, the rotating handle 112 can be removed first, and then installed back onto the first extension portion 11 after the installation is completed. When it is necessary to observe the flame in the furnace, the staff can observe the image reflected by the reflection component 2 in the second observation port 121 through the first observation port 111 on the first extension portion 11, and judge the burning condition of the flame in the furnace. When it is necessary to observe the flame at different positions, the first extension portion 11 needs to be rotated so that the second extension portion 12 is located at a suitable position, and the observation can be continued.

[0039] The furnace fire-viewing device disclosed in the present invention, by rotating the observation tube 1 connected to the fire-viewing hole, allows the staff to observe the flame in the furnace without opening the fire-viewing hole when it needs to observe the flame, causing external cold air to enter the furnace and affect the flame combustion. It can also reduce the number of times the staff cleans the fire-viewing hole. In addition, because the observation tube 1 of the furnace fire-viewing device disclosed in the present invention can be rotated, the staff can have a better field of view when observing the flame and obtain a better observation effect.

[0040] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0042] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A furnace fire viewing device, characterized in that: include: An observation tube, the observation tube comprising a first extension portion and a second extension portion, the axis of the first extension portion and the axis of the second extension portion are not arranged in a colinear manner, the first extension portion is connected to the furnace wall and can rotate along its own axis in the furnace wall, the first extension portion is provided with a first observation port, the second extension portion is located in the furnace chamber, and the second extension portion is also provided with a second observation port; A reflection component is located in the observation tube and is used to reflect the image in the second observation port to the first observation port.

2. The furnace fire viewing device according to claim 1, characterized in that: The axial directions of the first extension portion and the second extension portion are perpendicular to each other. The first extension portion extends in a horizontal direction, and the second extension portion extends in a vertical direction.

3. The furnace fire viewing device according to claim 1, characterized in that: It also includes a third extension portion, which is connected to an end of the second extension portion that is not connected to the first extension portion. The third extension portion extends in a horizontal direction, and the second observation port is located in the third extension portion.

4. The furnace fire viewing device according to claim 1, characterized in that: A sealing ring is provided at the connection between the first extension part and the furnace wall for sealing the connection between the first extension part and the furnace wall. At least two sealing rings are provided and are respectively located at the inner and outer sides of the furnace wall.

5. The furnace fire viewing device according to claim 4, characterized in that: The sealing ring is made of high temperature resistant graphite material.

6. The furnace fire viewing device according to claim 1, characterized in that: It also includes a bearing, and the first extension part is rotatably connected to the furnace wall through the bearing.

7. The furnace fire viewing device according to claim 1, characterized in that: The reflection assembly includes at least two reflection mirrors, and the reflection mirrors are fixedly connected in the observation tube.

8. The furnace fire viewing device according to claim 7, characterized in that: The axes of the first extension portion and the second extension portion are perpendicular to each other. The first extension portion extends in a horizontal direction, and the second extension portion extends in a vertical direction. Two reflectors are provided, and the two reflectors are arranged at 45°, and one of the reflectors is located in the first extension portion, and the other reflector is located in the second extension portion.

9. The furnace fire viewing device according to claim 1, characterized in that: A protective sheet is arranged at the second observation port, and the protective sheet is made of a transparent material.

10. The furnace fire viewing device according to claim 1, characterized in that: The first extension portion is also provided with a rotating handle, and the rotating handle is detachably connected to the first extension portion.

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