Tool provided with protective structure and used for cleaning observation hole of heating furnace on line

Abstract

The utility model provides a tool with a protective structure for online cleaning a heating furnace observation hole. The tool comprises a flange plate, a cleaner, a blowback device and a rotator, the flange plate is matched with the observation hole so as to be hermetically arranged on the observation hole; the cleaner is arranged on the side, close to the observation hole, of the flange plate. The blowback device is arranged on the side, away from the fire observation hole, of the flange plate, and a pipeline of the blowback device penetrates through the flange plate and extends into the fire observation hole. The rotator is arranged on the side, away from the observation hole, of the flange plate and connected with the cleaner through the flange plate. According to the utility model, the sleeve section and the filler section are arranged, and the blowback device connected with the sleeve section and the filler section is matched to carry out nitrogen blowback, so that gas in the heating furnace is prevented from flowing backwards, and the device has the advantages of protection and on-line cleaning of the observation hole. The risk that the furnace needs to be shut down when the observation hole of the heating furnace is cleaned in the prior art is solved, and operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to a tool for on-line cleaning of the viewing hole of a heating furnace with a protection structure. Background Art

[0002] The "viewing hole" of a heating furnace refers to a hole or window used to observe the flame or combustion state inside the furnace. It is usually located on the side or top of the heating furnace, and sometimes there are specific observation windows. Through these holes or windows, operators can observe the combustion situation inside the furnace, so as to adjust the operation parameters of the heating furnace and ensure that the heating process inside the furnace can achieve the expected effect.

[0003] At present, in the petrochemical industry, during the long-term operation of the heating furnace, the viewing hole may be contaminated by impurities. If you want to clean the viewing hole, it can only be cleaned after the heating furnace is shut down. Shutting down the furnace for cleaning is not conducive to the safe and stable operation of the device and increases the operation cost of the device.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present utility model and does not constitute any limitation to the present utility model. Summary of the Utility Model

[0005] In view of the above-mentioned disadvantages of the prior art, the present utility model provides a tool for on-line cleaning of the viewing hole of a heating furnace with a protection structure. By setting a sleeve section and a packing section, and cooperating with a connected backblower to provide nitrogen backblowing, it prevents the gas inside the heating furnace from flowing back, and has the advantages of protection and on-line cleaning of the viewing hole. It solves the risk of shutting down the furnace required for cleaning the viewing hole of the existing technology, and reduces the operation cost of the device.

[0006] The present utility model provides a tool for on-line cleaning of the viewing hole of a heating furnace with a protection structure, including a flange, a cleaner, a backblower, and a rotator; the flange matches the viewing hole and is hermetically installed on the viewing hole; the cleaner is installed on one side of the flange close to the viewing hole; the backblower is installed on one side of the flange away from the viewing hole, and the pipeline of the backblower passes through the flange and extends into the viewing hole; the rotator is installed on one side of the flange away from the viewing hole and is connected to the cleaner through the flange.

[0007] In an embodiment of the present utility model, a sleeve section and a packing section are further installed on the flange. One end of the sleeve section is hermetically connected to the flange, and the other end is hermetically connected to the packing section, and the sleeve section is communicated with the outside through the structural hole of the flange.

[0008] In an embodiment of the present utility model, one end of the pipeline of the backblower is connected to the sleeve section, and the other end is connected to a quick connector.

[0009] In an embodiment of the present utility model, one end of the rotator is installed on the flange and connected to the cleaner, and the other end extends along the inside of the casing section to the outside of the packing section and is installed on the packing section.

[0010] In an embodiment of the present utility model, the casing section and the packing section respectively include a first casing, a second casing, a first packing, and a second packing, and the first casing, the first packing, the second casing, and the second packing are hermetically connected in sequence.

[0011] In an embodiment of the present utility model, the length of the first casing is greater than the length of the second casing.

[0012] In an embodiment of the present utility model, the pipelines of the backblower are respectively connected to the first casing and the second casing.

[0013] In an embodiment of the present utility model, a pressure gauge and a thermometer are installed on the first casing.

[0014] In an embodiment of the present utility model, the connection between the cleaner and the rotator is a threaded connection.

[0015] In an embodiment of the present utility model, the flange is a stepped flange.

[0016] The beneficial effects of the present utility model at least include the following:

[0017] 1. The present utility model provides a tool for online cleaning of the viewing hole of a heating furnace with a protective structure, which can clean the viewing hole of the heating furnace online without the need for cleaning after the furnace is stopped, reducing the operating cost.

[0018] 2. By equipping with a nitrogen backblower, a packing system, a pressure gauge, and a thermometer, the situation of reverse flow of toxic, harmful, and combustible gases during the cleaning process is solved, avoiding personal injury and having a certain degree of safety protection.

[0019] 3. By adopting a flange with a variable diameter function and equipping cleaners of different sizes, online cleaning can be achieved for viewing holes of different pipe diameters.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present utility model, and are used together with the specification to explain the principles of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts. In the drawings:

[0022] Figure 1 This is a schematic structural diagram of a tool for online cleaning of the viewing hole of a heating furnace according to the present utility model.

[0023] In the figure: 1, flange; 2, cleaner; 3, back-blowing device; 31, quick connector; 4, rotator; 5, sleeve section; 51, first-stage sleeve; 52, second-stage sleeve; 6, packing section; 61, first-stage packing; 62, second-stage packing; 7, pressure gauge; 8, thermometer. Specific embodiments

[0024] The following specific examples illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. It should also be understood that the terms used in the embodiments of the present utility model are for describing specific implementation manners and not for limiting the protection scope of the present utility model.

[0025] Please refer to Figure 1 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. At the same time, the terms used in this specification for the positions, quantity relationships, etc. are only for the convenience of clear narration and not for limiting the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present utility model can be implemented.

[0026] Please refer to Figure 1 , the present utility model provides a tool for online cleaning of the viewing hole of a heating furnace with a protective structure, including a flange 1, a cleaner 2, a back-blowing device 3, and a rotator 4; the flange 1 matches the viewing hole and is hermetically installed on the viewing hole; the cleaner 2 is installed on one side of the flange 1 close to the viewing hole; the back-blowing device 3 is installed on one side of the flange 1 away from the viewing hole, and the pipeline of the back-blowing device 3 passes through the flange 1 and extends into the viewing hole; the rotator 4 is installed on one side of the flange 1 away from the viewing hole and is connected to the cleaner 2 through the flange 1.

[0027] Specifically, in the embodiment of the present utility model, a cleaner 2 and a rotator 4 are respectively installed on both sides of the flange 1. The backflush gas of the backflusher 3, such as nitrogen, is conveyed from one side of the rotator 4 to one side of the cleaner 2 along its pipeline. The backflusher 3 can be understood as a nitrogen backflush system, which is used to provide backflush nitrogen during the cleaning process of the heating furnace sight hole. During use, first close the handhole of the heating furnace and remove the sight glass flange, then install and connect the flange 1 to the sight glass flange of the handhole. At this time, the pipeline outlets of the cleaner 2 and the backflusher 3 are located inside the handhole. Then open the hand valve of the heating furnace sight hole, and at the same time turn on the backflusher 3 to perform nitrogen backflush on the sight hole to prevent the gas in the heating furnace from flowing back, thereby ensuring the safety during the cleaning process of the sight hole. Subsequently, drive the connected cleaner 2 to move synchronously by operating the rotator 4 to clean the inside of the sight hole.

[0028] Furthermore, a sleeve section 5 and a packing section 6 are also installed on the flange 1. One end of the sleeve section 5 is hermetically connected to the flange 1, and the other end is hermetically connected to the packing section 6. And the sleeve section 5 communicates with the outside through the structural hole of the flange 1. One end of the pipeline of the backflusher 3 is connected to the sleeve section 5, and the other end is connected with a quick connector 31. One end of the rotator 4 is installed on the flange 1 and connected to the cleaner 2, and the other end extends along the inside of the sleeve section 5 to the outside of the packing section 6 and is installed on the packing section 6.

[0029] Specifically, the flange 1 and the sleeve section 5 are connected by welding. The packing section 6 installed at the other end of the sleeve section 5 forms a seal, ensuring that the backflush nitrogen of the pipeline of the backflusher 3 connected to the sleeve section 5 is conveyed into the sight hole along the structural hole of the flange 1, and at the same time preventing the gas in the sleeve section 5 from overflowing, ensuring that the gas in the heating furnace will not flow back along the sight hole. When the sight hole needs to be cleaned, the pipeline of the backflusher 3 is directly connected to the external nitrogen pipeline through the quick connector 31, which is convenient for operation. At the same time, operate the cleaner 2 to move and clean inside the sight hole through the rotator 4. On the one hand, it leaves a safety distance between the operator and the sight hole of the heating furnace. Only the rotator 4 has a certain length and is arranged along the sleeve section 5 with a certain length, and is installed on the packing section 6 at the end of the sleeve section 5 to ensure the stable operation of the rotator 4.

[0030] Furthermore, the sleeve section 5 and the packing section 6 respectively include a first-stage sleeve 51, a second-stage sleeve 52, a first-stage packing 61 and a second-stage packing 62, and the first-stage sleeve 51, the first-stage packing 61, the second-stage sleeve 52 and the second-stage packing 62 are hermetically connected in sequence. The length of the first-stage sleeve 51 is greater than that of the second-stage sleeve 52. The pipelines of the backflusher 3 are respectively connected to the first-stage sleeve 51 and the second-stage sleeve 52. A pressure gauge 7 and a thermometer 8 are installed on the first-stage sleeve 51. The cleaner 2 and the rotator 4 are connected by a screw thread. The flange 1 is a stepped flange.

[0031] Specifically, in the embodiment of the present utility model, a first-stage casing 51 and a second-stage casing 52 are provided with a first-stage packing 61 therebetween. At the end of the second-stage casing 52, there is a second-stage packing 62. The rotator 4 passes through the middle of the first-stage casing 51, the second-stage casing 52, the first-stage packing 61 and the second-stage packing 62. The first-stage packing 61 and the second-stage packing 62 further play a role in fixing the rotator 4. The length of the first-stage casing 51 is set to be relatively large, which is convenient for installing a pressure gauge 7, a thermometer 8 and the pipeline of the back-blowing device 3 connected thereto. At the same time, the distance from the viewing hole can be increased to play a protective role. The rotator 4 and the adjustable cleaner 2 are connected by a threaded connection to move synchronously, so as to achieve the control of operation accuracy. In the first-stage casing 51 and the second-stage casing 52 corresponding to the first-stage packing 61 and the second-stage packing 62, the pipeline of the nitrogen back-blowing device 3 is connected. The first-stage packing 61 is provided with a pressure gauge 7 and a thermometer 8, which are used to real-time feedback the air pressure parameter and the temperature parameter in the first-stage casing 51 during the nitrogen back-blowing process of cleaning the viewing hole, so as to ensure that the online cleaning of the viewing hole is in the installation working condition. Similarly, for viewing holes with different pipe diameters, adjustment is carried out by using a variable-diameter flange 1. In addition, the cleaner 2 can also be replaced with different sizes.

[0032] In summary, for a tool for online cleaning of the heating furnace viewing hole with a protective structure provided by the present utility model, during use, first close the hand valve of the heating furnace viewing hole, remove the sight glass flange, connect the variable-diameter flange to the flange of the heating furnace viewing hole, connect the nitrogen back-blowing device to the nitrogen line through a quick connector, then open the hand valve of the heating furnace viewing hole, open the relevant hand valves of the nitrogen back-blowing system to carry out nitrogen back-blowing to prevent the gas in the heating furnace from flowing back, observe that the pressure gauge shows a positive pressure value, the thermometer shows normal, and the temperature does not rise abnormally, and clean the viewing hole by rotating the rotator inward.

[0033] The above embodiments are only used to illustrate the principle and its effects of the present utility model, rather than to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A tool with a protective structure for online cleaning of a heating furnace fire hole, characterized in that: include: A flange (1), the flange (1) matches the fire viewing hole so as to be sealed and mounted on the fire viewing hole; A cleaner (2), the cleaner (2) being mounted on a side of the flange (1) close to the fire viewing hole; A back-blowing device (3), the back-blowing device (3) being installed on a side of the flange (1) away from the fire-viewing hole, and a pipeline of the back-blowing device (3) passing through the flange (1) and extending into the fire-viewing hole; and A rotator (4) is installed on a side of the flange (1) away from the fire viewing hole, and is connected to the cleaner (2) through the flange (1).

2. The tool according to claim 1, characterized in that The flange (1) is also provided with a sleeve section (5) and a packing section (6); one end of the sleeve section (5) is sealedly connected to the flange (1), and the other end is sealedly connected to the packing section (6); and the sleeve section (5) is connected to the outside through a structural hole of the flange (1).

3. The tool according to claim 2, characterized in that One end of the pipeline of the backblower (3) is connected to the casing section (5), and the other end is connected to a quick connector (31).

4. The tool according to claim 2, characterized in that One end of the rotator (4) is mounted on the flange (1) and connected to the cleaner (2), and the other end extends along the inside of the sleeve section (5) to the outside of the packing section (6) and is mounted on the packing section (6).

5. The tool according to claim 4, characterized in that The casing section (5) and the filler section (6) respectively comprise a first casing section (51) and a second casing section (52) and a first filler section (61) and a second filler section (62), and the first casing section (51), the first filler section (61), the second casing section (52) and the second filler section (62) are sealed and connected in sequence.

6. The tool according to claim 5, characterized in that The length of the first sleeve section (51) is greater than the length of the second sleeve section (52).

7. The tool according to claim 5, characterized in that The pipeline of the backblower (3) is respectively connected to the first-stage casing (51) and the second-stage casing (52).

8. The tool according to claim 5, characterized in that The section of casing (51) is provided with a pressure gauge (7) and a temperature gauge (8).

9. The tool according to claim 1, characterized in that The cleaner (2) and the rotator (4) are connected by thread.

10. The tool according to claim 1, characterized in that The flange (1) is a reducing flange.

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