Decoking tool

Abstract

The utility model relates to the technical field of boiler decoking, and aims to solve the problems that an existing decoking rod is limited in application range, and a decoking head is poor in stability after being installed. The utility model provides a decoking tool. The decoking tool comprises a decoking head, a telescopic assembly and a connecting piece, the telescopic assembly comprises a plurality of first rod bodies and a plurality of second rod bodies; the plurality of first rod bodies and the plurality of second rod bodies are alternately connected; one end of the second rod body is telescopically connected with the upper-stage first rod body; the other end of the second rod body is connected with the lower-stage first rod body through the connecting piece; the decoking head is arranged at one end of the telescopic assembly; the first rod body and the second rod body are alternately connected, so that the length of the decoking tool can be flexibly adjusted according to the size of a boiler and the size of a site on the basis that the rod diameters of the rod bodies are not decreased, the application range is wide, the rod bodies are not prone to being broken by pressing in the decoking process through the decoking head at the end, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler decoking, in particular to a decoking tool. Background Art

[0002] When the boiler is in operation, coke is often generated inside the boiler, so it is necessary to use a decoking rod to knock and clean it. However, in actual situations, due to the size of the boiler and the size of the site, the use of a fixed-length decoking rod is prone to being insufficient in length to make it impossible to clean the inside of the boiler, or being too long to be convenient to use.

[0003] In order to solve the above problems, in the prior art, a telescopic rod is usually used as a decoking rod, such as the patent with publication number CN214745893U, which discloses a telescopic fire-viewing hole decoking tool for a secondary reheat tower boiler. Specifically, when using the telescopic fire-viewing hole decoking tool for a secondary reheat tower boiler, the telescopic rod is stretched in advance to a required length before decoking.

[0004] However, the existing telescopic rods are usually rod-in-rod structures. For large boilers, if a certain length is required, the diameter of the final top rod will be very small, resulting in the rod body at the top being too thin. If a coke scraping structure is provided, the rod body is easily bent, which affects the coke-scraping effect and may even cause the top rod to be broken during the coke-scraping process.

[0005] Based on the above description, there is an urgent need for a decoking tool that is flexible in length adjustment and stable. Utility Model Content

[0006] The utility model aims to provide a decoking tool, aiming to solve the technical problems that the existing decoking rod has a limited application range and the decoking head has poor stability after being installed.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] A decoking tool comprises a decoking head, a telescopic assembly and a connecting piece; the telescopic assembly comprises a plurality of first rods and a plurality of second rods; the plurality of first rods are alternately connected with the plurality of second rods; one end of the second rod is telescopically connected to the upper first rod; the other end of the second rod is connected to the lower first rod through the connecting piece; the decoking head is arranged at one end of the telescopic assembly.

[0009] Preferably, the connecting member comprises a barrel and a ring cover; one end of the second rod body passes through the ring cover and enters the inner cavity of the barrel body; the top end of the lower first rod body passes through the inner cavity of the barrel body and is connected to the second rod body.

[0010] Preferably, one end of the second rod body away from the upper first rod body passes through the lower second rod body and is connected to the lower second rod body; the lower second rod body is connected to the barrel.

[0011] Preferably, the coking head comprises a plate body, a plurality of cones and a pair of shovel heads; the cones are arranged on a side of the plate body away from the second rod body; the pair of shovel heads are both arranged on the other side of the plate body; the plate body is connected to the telescopic assembly.

[0012] Preferably, the plurality of cones are distributed in an S-shape on a side of the plate away from the second rod.

[0013] Preferably, a pair of shovel heads are respectively arranged at two ends of the plate body and extend in a direction away from the telescopic assembly.

[0014] Preferably, a retaining ring and a push handle are provided at one end of the telescopic assembly away from the coking head; an operating handle is provided between the retaining ring and the push handle.

[0015] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0016] The decoking tool provided by the utility model realizes flexible adjustment of the length of the decoking tool according to the size of the boiler and the size of the site without decreasing the rod diameter by alternately connecting the first rod body and the second rod body. The utility model has a wide range of applications, and the decoking head at the end is not easy to break the rod body part during the decoking process. The connection between the first rod body and the second rod body is further reinforced by the connecting piece, ensuring that the connection parts are not easy to be broken during the force application process of the decoking operation, thereby improving the overall stability of the decoking tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of the local structure A;

[0020] Figure 3 An exploded view of the utility model;

[0021] Figure 4It is a cross-sectional view of the connecting piece in the utility model;

[0022] Figure 5 It is a bottom view of the focal length of the utility model.

[0023] Icons: 1-scorching head, 11-plate body, 12-cone body, 13-shovel head, 2-telescopic assembly, 21-first rod body, 22-second rod body, 3-connecting piece, 31-barrel body, 32-ring cover, 4-blocking ring, 5-push handle, 6-operating handle. DETAILED DESCRIPTION

[0024] Example 1

[0025] See also Figures 1 to 5 The utility model provides the following technical solutions: a decoking tool, which is suitable for extending into a boiler for decoking.

[0026] Specifically, Figure 1 and Figure 3 As shown, a decoking tool comprises a decoking head 1, a telescopic assembly 2 and a connecting piece 3; the telescopic assembly 2 comprises a plurality of first rods 21 and a plurality of second rods 22; the plurality of first rods 21 are alternately connected with the plurality of second rods 22; one end of the second rod 22 is telescopically connected to the upper first rod 21; the other end of the second rod 22 is connected to the lower first rod 21 through the connecting piece 3; the decoking head 1 is arranged at one end of the telescopic assembly 2.

[0027] In the present embodiment, both ends of the second rod body 22 are respectively connected to a pair of first rod bodies 21; wherein, both ends of the second rod body 22 can be connected and reinforced by means of a connecting piece 3, or one end is telescopically connected to an existing telescopic and fixed rod-in-rod structure, and the other end is connected by means of a connecting piece 3. By using the connecting piece 3 to alternately connect the first rod body 21 and the second rod body 22, it is convenient to flexibly disassemble and assemble according to the size of the boiler and the size of the site at the decoking site, and to adjust the length according to the decoking; and it can also ensure that the lengthened rod body will not have a situation where, after the rod-in-rod reaches a certain length, the top rod is too thin, resulting in the inability to firmly connect the decoking head 1 for decoking work; the decoking head 1 is also connected to the first rod body 21 or the second rod body 22 at the end of the telescopic assembly 3 through the connecting piece 3.

[0028] Specifically, Figure 2 and Figure 4 As shown, the connecting member 3 includes a barrel 31 and a ring cover 32; one end of the second rod 22 passes through the ring cover 32 and enters the inner cavity of the barrel 31; the top end of the lower first rod 21 passes through the inner cavity of the barrel 31 and is connected to the second rod 22. One end of the second rod 22 away from the upper first rod 21 passes through the lower second rod 22 and is connected to the lower second rod 22; the lower second rod 22 is connected to the barrel 31.

[0029] In this embodiment, the ring cover 32 is screwed or welded to the second rod body 22; one end of the second rod body 22 is built into the barrel body 31, the top of the lower first rod body 21 passes through the barrel body 31 and is screwed or clamped to the inner wall of the barrel body 31, and the second rod body 22 built into the barrel body 31 passes through the first rod body 21 and is screwed or clamped to the first rod body 21, thereby ensuring that the connection is strong and not easy to break during the decoking process.

[0030] Specifically, Figure 2 and Figure 5 As shown, the coking head 1 includes a plate body 11, a plurality of cones 12 and a pair of shovel heads 13; the cones 12 are arranged on one side of the plate body 11 away from the second rod body 22; the pair of shovel heads 13 are both arranged on the other side of the plate body 11; the plate body 11 is connected to the telescopic assembly 2.

[0031] In this embodiment, the coke in the boiler can be crushed by multiple cones 21, and the coke on the furnace wall can be planed and scraped by the shovel head 13; wherein, the multiple cones 12 are distributed in an S shape on the side of the plate body 11 away from the second rod body 22, thereby forming multiple force application points to quickly split large pieces of coke; in addition, a pair of shovel heads are respectively arranged at both ends of the plate body 11 and extend in a direction away from the telescopic component, wherein the pair of shovel heads 13 can be set to one large and one small or one parallel shovel blade and one arc-shaped shovel blade, which can not only plan and scrape a large area, but also plan and scrape local coke, and can also be closer to the arc-shaped inner wall of the boiler to improve the scraping effect.

[0032] Specifically, Figure 1 As shown, a retaining ring 4 and a pushing handle 5 are provided at one end of the telescopic assembly 2 away from the coking head 1 ; an operating handle 6 is provided between the retaining ring 4 and the pushing handle 5 .

[0033] In this embodiment, the push handle 5 is used to facilitate pushing the decoking head 1 for decoking, and the operating handle 6 is used to facilitate holding the decoking tool during decoking; the retaining ring 4 is used to prevent the decoking tool from slipping and being inconvenient to hold by hand and push the push handle 5 to apply force.

[0034] The specific implementation process is as follows: according to the size of the boiler and the size of the site, the first rod body 21, the second rod body 22 and the coke removing head 3 are spliced ​​together through the connecting piece 3. After being spliced ​​to an appropriate length, the operator holds the operating handle 6, inserts the decoking tool into the boiler, and pushes the side with the cone 12 to the position where the coke needs to be removed. Then, force is applied to the push handle 5 to break the coke. The operating handle 6 is rotated continuously again to adjust the angle of the shovel head 13, and the shovel head 13 is used to plan and scrape the coke on the inner wall of the boiler.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A decoking tool, comprising a decoking head (1), characterized in that: It also comprises a telescopic assembly (2) and a connecting piece (3); the telescopic assembly (2) comprises a plurality of first rods (21) and a plurality of second rods (22); a plurality of the first rods (21) are alternately connected with a plurality of the second rods (22); one end of the second rod (22) is telescopically connected to the upper first rod (21); the other end of the second rod (22) is connected to the lower first rod (21) via the connecting piece (3); the coking head (1) is arranged at one end of the telescopic assembly (2).

2. The decoking tool according to claim 1, characterized in that: The connecting member (3) comprises a barrel (31) and a ring cover (32); one end of the second rod body (22) passes through the ring cover (32) and enters the inner cavity of the barrel body (31); the top end of the lower first rod body (21) passes through the inner cavity of the barrel body (31) and is connected to the second rod body (22).

3. The decoking tool according to claim 2, characterized in that: One end of the second rod body (22) away from the upper first rod body (21) passes through the lower second rod body (22) and is connected to the lower second rod body (22); the lower second rod body (22) is connected to the barrel (31).

4. The decoking tool according to any one of claims 1 to 3, characterized in that: The coking head (1) comprises a plate body (11), a plurality of cones (12) and a pair of shovel heads (13); the cones (12) are arranged on a side of the plate body (11) away from the second rod body (22); the pair of shovel heads (13) are both arranged on the other side of the plate body (11); the plate body (11) is connected to the telescopic assembly (2).

5. The decoking tool according to claim 4, characterized in that: The plurality of cones (12) are distributed in an S-shape on a side of the plate (11) away from the second rod (22).

6. The decoking tool according to claim 5, characterized in that: A pair of shovel heads (13) are respectively arranged at two ends of the plate body (11) and extend in a direction away from the telescopic assembly (2).

7. The decoking tool according to claim 4, characterized in that: A retaining ring (4) and a pushing handle (5) are provided at one end of the telescopic assembly (2) away from the coking head (1); an operating handle (6) is provided between the retaining ring (4) and the pushing handle (5).

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