Soot blowing pipe

Abstract

The utility model belongs to the technical field of reactor catalyst cleaning equipment, and particularly relates to a soot blowing pipe. The gas inlet pipe comprises a pipe body and a gas inlet flange, at least one row of gas outlet holes are formed in the bottom of the pipe body in the length direction of the pipe body, at least one slag removal opening is formed in the pipe body, and a screw cap is installed on the slag removal opening in a fastened mode; the air inlet flange is communicated with the top of the pipe body. The soot blowing pipe is used for solving the problem that the air outlet holes in the soot blowing pipe are easy to block. When dust is accumulated in the pipe body and blocks the air outlet hole, the dust accumulated in the pipe body can be cleaned by detaching the pipe body from the air inlet flange and then screwing off the screw cap on the slag removal opening, then the dust is poured out through the slag removal opening, the dust can be prevented from being accumulated in the air outlet hole from the inside, and after cleaning is completed, the screw cap is screwed on the slag removal opening.

Description

Technical Field

[0001] The utility model belongs to the technical field of reactor catalyst cleaning equipment, and in particular relates to a sootblower. Background Art

[0002] Selective catalytic reduction refers to the use of a reducing agent to selectively react with NOx in flue gas under the action of a catalyst to generate non-toxic and non-polluting N2 and H2O. However, during the long-term catalytic denitrification process, dust particles in the flue gas can easily block the holes on the catalyst surface.

[0003] At present, in the cleaning device, an air outlet is opened at the bottom of the cleaning pipe connected to the main pipe to aim at the catalyst surface. The high-pressure gas introduced is sprayed out from the air outlet of the cleaning pipe to clean the dust on the catalyst surface. However, the cleaning pipe in the past is usually made of steel pipe, which is closed at both ends and connected to the main pipe in the middle. After long-term use, dust will inevitably enter the soot blowing pipe, and too much dust will block the air outlet, thereby affecting the cleaning effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a soot blowing pipe, which is used to solve the problem that the air outlet holes in the soot blowing pipe are easily blocked.

[0005] The utility model solves the above technical problems with the following technical solutions: a sootblower, comprising:

[0006] A tube body, wherein at least one exhaust hole is provided at the bottom of the tube body along the length direction thereof, and at least one slag cleaning port is provided on the tube body, and a screw cover is fastened to the slag cleaning port;

[0007] The air inlet flange is connected to the top of the tube body.

[0008] Compared with the prior art, the above technical solution has the following beneficial effects:

[0009] When dust accumulates inside the pipe body and blocks the air outlet, you can disassemble it from the air inlet flange, then unscrew the screw cover on the slag cleaning port, clean the dust accumulated in the pipe body, and then pour it out through the slag cleaning port. This can prevent dust from accumulating in the air outlet from the inside. After cleaning, tighten the screw cover on the slag cleaning port.

[0010] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0011] Furthermore, it also includes a plurality of pins which are arranged at intervals along the length direction of the tube body, and both ends of the pins are connected and fixed to the side walls of the tube body.

[0012] Furthermore, it also includes an inflation pipe, the top of which is connected to the air inlet, and the bottom of which is obliquely extended toward both ends along the length direction of the tube body and then connected to the center of the top of the tube body.

[0013] Furthermore, the slag cleaning port is opened at the top close to the end of the tube body.

[0014] Furthermore, there are two slag cleaning ports, which are symmetrically arranged on the tube body with respect to the center of the tube body.

[0015] Furthermore, the tube body includes: a square box body and a herringbone box top closed on the top of the square box body.

[0016] Furthermore, the diameter of the air outlet gradually increases from the middle to both ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a front view structural schematic diagram of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the side structure.

[0020] Figure 3 for Figure 2 Schematic diagram of the structure in direction A.

[0021] Reference numerals:

[0022] 1. Pipe body;

[0023] 101, box body; 102, box top;

[0024] 2. Inlet flange;

[0025] 3. Slag cleaning port; 4. Screw cover;

[0026] 5. Pin;

[0027] 6. Inflation pipe;

[0028] 7. Vent hole. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] Example

[0035] like Figure 1-3 As shown, a sootblower provided by the utility model comprises: a tube body and an air inlet flange.

[0036] At least one exhaust hole is provided at the bottom of the tube body along its length direction, and at least one slag cleaning port is provided on the tube body. The slag cleaning port can be located at the top, side and end of the tube body which are different from the bottom. A screw cover is fastened on the slag cleaning port. When the soot blowing pipe is used for cleaning, the screw cover is sealed and fastened on the slag cleaning port. When the inside of the soot blowing pipe needs to be cleaned, the screw cover can be opened; the air inlet flange is connected to the top of the tube body, and the soot blowing pipe is connected to the external pipeline through the air inlet flange. The detachable connection is realized through the air inlet flange, which is convenient for disassembly and assembly.

[0037] When dust accumulates inside the pipe body and blocks the air outlet, you can disassemble it from the air inlet flange, then unscrew the screw cover on the slag cleaning port, clean the dust accumulated in the pipe body, and then pour it out through the slag cleaning port. This can prevent dust from accumulating in the air outlet from the inside. After cleaning, tighten the screw cover on the slag cleaning port.

[0038] Specifically, the tube body includes: a square box body and a herringbone box top closed on the top of the square box body, which can not only increase the internal space of the tube body so that the internal air pressure can be balanced as much as possible, but also fully enhance the rigidity of the tube body.

[0039] In order to improve the structural strength of the entire tube body and prevent the tank body from bursting due to over-pressure gas, the present embodiment also includes a plurality of pins, which are arranged at intervals along the length direction of the tube body. Both ends of the pins are connected and fixed to the side walls of the tube body to reinforce the tube body. Specifically, both ends of the pins are fixedly connected to the two side walls of the square box body.

[0040] It also includes an inflation pipe, which is connected between the air inlet flange and the tube body. The top of the inflation pipe is connected to the air inlet flange, and the bottom of the inflation pipe extends obliquely to both ends along the length direction of the tube body and is connected to the center of the top of the tube body. The bottom of the inflation pipe extends in the length direction of the tube body, so that the inflation pipe forms an eight-shaped shape as a whole. In this way, compressed air can fully and evenly enter the tube body below, while at the same time increasing the structural strength between the inflation pipe and the tube body.

[0041] In this embodiment, the slag cleaning port is opened at the top near the end of the tube body;

[0042] Specifically, the inner diameter of the slag cleaning port is arranged tangent to the inner wall of the tube body, so that the dust inside the tube body can be poured out from the slag cleaning port more conveniently, and there is as little dead angle as possible when pouring out.

[0043] In order to facilitate the cleaning of dust inside the tube body, two slag cleaning ports are provided, and the two slag cleaning ports are symmetrically arranged on the tube body with the center of the tube body. In this way, the internal dust can be discharged from the other slag cleaning port by ventilating one of the slag cleaning ports.

[0044] The air outlet holes at the bottom of the tube body are evenly spaced; specifically, to ensure that the blowing force of the air outlet holes is balanced, the aperture of the air outlet holes at the bottom is different according to the pressure. The air outlet holes are specifically set to gradually increase in diameter from the middle to both ends. In this embodiment, the aperture in the middle can be 1.8 mm, and the aperture at both ends is 2.0 mm.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A sootblower, characterized in that: include: A tube body, wherein at least one exhaust hole is provided at the bottom of the tube body along the length direction thereof, and at least one slag cleaning port is provided on the tube body, and a screw cover is fastened to the slag cleaning port; The air inlet flange is connected to the top of the tube body.

2. The sootblower according to claim 1, characterized in that: It also includes a plurality of pins which are arranged at intervals along the length direction of the tube body, and the two ends of the pins are connected and fixed to the side walls of the tube body.

3. The sootblower according to claim 1, characterized in that: It also includes an air filling pipe, the top of which is connected to the air inlet, and the bottom of which is obliquely extended toward both ends along the length direction of the tube body and connected to the center of the top of the tube body.

4. The sootblower according to claim 1, characterized in that: The slag cleaning port is opened at the top close to the end of the tube body.

5. The sootblower according to claim 4, characterized in that: The two slag cleaning ports are provided, and the two slag cleaning ports are symmetrically arranged on the tube body with respect to the center of the tube body.

6. The sootblower according to claim 1, characterized in that: The tube body comprises: a square box body and a herringbone box top closed on the top of the square box body.

7. The sootblower according to claim 1, characterized in that: The diameter of the air outlet gradually increases from the middle to both ends.

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