A fixed lopel hat sootblower

Abstract

A fixed wind cap soot blower, including soot blowing pipeline (1) and spray pipe (2), spray pipe (2) top is provided with spray head (3), spray head (3) is provided with a group of nozzles (4) on annular distribution, soot blowing pipeline (1) is provided with back blowing branch pipe (5), back blowing branch pipe (5) is provided with check valve (6); The advantages are: fast blowing speed, with back blowing pipeline, after stopping soot blowing, can input sealing air through back blowing pipeline, prevent clogging, can also play the role of cooling pipeline.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, specifically to a fixed-type hood soot blower. Background Technology

[0002] Currently, the flame deflector area of ​​large power plant boilers often suffers from severe ash accumulation. This is mainly because this area has an upward slope, and the natural flow of flue gas can only carry away some of the ash, leaving a considerable amount accumulating on the slope. Over time, the ash buildup can reach a thickness of over 1 meter, severely affecting the heat absorption of the heating surface in this area. Existing sootblowers lack a backflushing mechanism, and their nozzles are easily clogged with dust after operation ceases. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing a fixed-type hood soot blower.

[0004] This utility model includes a soot blowing pipe and a spray pipe. The nozzle is equipped with a nozzle at the top of the nozzle pipe, and a set of nozzles are evenly distributed in a ring on the nozzle. The soot blowing pipe is equipped with a backflush branch pipe, and a one-way valve is installed on the backflush branch pipe.

[0005] A lift valve is installed at the inlet end of the soot blowing pipe.

[0006] The nozzle head has a set of nozzle mounting holes, and the nozzles are installed in the nozzle mounting holes.

[0007] The diameter of the nozzle is larger than the diameter of the soot blowing pipe.

[0008] The nozzle is set at an angle downwards.

[0009] The angle between the centerline of the nozzle and the horizontal plane is α, where α is 8-13°.

[0010] The top of the nozzle is equipped with a sealing cap.

[0011] The backflush branch pipe is welded to the wall of the sootblowing pipe.

[0012] The nozzle is welded to the soot blowing pipe.

[0013] The advantages of this utility model are: fast purging speed, equipped with a back-blowing pipe, and after the ash blowing stops, sealing air can be introduced through the back-blowing pipe to prevent blockage and also to cool the pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the nozzle of this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of the embodiments of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, if terms such as "first" or "second" appear in the description of this invention, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0021] As shown in the attached diagram, this utility model includes a soot blowing pipe 1 and a nozzle 2. The nozzle 2 is equipped with a nozzle 3 at the top, and a set of nozzles 4 are evenly distributed in a ring on the nozzle 3. The soot blowing pipe 1 is equipped with a back-blowing branch pipe 5, and a one-way valve 6 is installed on the back-blowing branch pipe 5.

[0022] A lift valve is installed at the inlet end of the soot blowing pipe 1.

[0023] The nozzle 3 has a set of nozzle mounting holes, and the nozzle 4 is installed in the nozzle mounting holes.

[0024] The diameter of nozzle 3 is larger than the diameter of soot blowing pipe 1.

[0025] Nozzle 4 is set at an angle downwards.

[0026] The angle between the centerline of nozzle 4 and the horizontal plane is α, where α is 8-13°.

[0027] The top of nozzle 3 is equipped with a sealing cap.

[0028] The backflush branch pipe 5 is welded to the wall of the sootblowing pipe 1.

[0029] The nozzle 2 is welded to the soot blowing pipe 1.

[0030] Example 1: A set of reinforcing ribs is evenly distributed in a ring on the nozzle 2, and is installed at the flame deflector of the boiler via the reinforcing ribs. The nozzle 3 is located inside the furnace. During purging, the lifting valve is opened, and steam enters the nozzle 3 through the soot blowing pipe 1 and the nozzle 2, and then is evenly sprayed downwards through a set of nozzles 4 for purging. After purging, the lifting valve is closed, and cold air is introduced through the backflush branch pipe 5, enters the nozzle 2 through the one-way valve, and is then sprayed out at a uniform speed through the nozzles 4. The backflush air has a low wind speed and mainly serves a sealing function to prevent dust in the boiler from clogging the nozzles 4. At the same time, the cold air can also cool the nozzle 3. During purging, the one-way valve 6 can prevent steam from entering the backflush branch pipe 5.

Claims

1. A fixed-type hooded soot blower, characterized in that... Includes a soot blowing pipe (1) and a nozzle (2), The nozzle (2) is equipped with a nozzle (3) at the top, and a set of nozzles (4) are evenly distributed in a ring on the nozzle (3). The soot blowing pipe (1) is equipped with a back-blowing branch pipe (5), and a one-way valve (6) is installed on the back-blowing branch pipe (5). A lifting valve is installed at the inlet end of the soot blowing pipe (1); The nozzle (3) has a set of nozzle mounting holes, and the nozzle (4) is installed in the nozzle mounting holes; The diameter of the nozzle (3) is larger than the diameter of the soot blowing pipe (1); The nozzle (4) is set at an angle downwards; The angle between the centerline of nozzle (4) and the horizontal plane is α, where α is 8-13°; The top of the nozzle (3) is provided with a sealing cap; The backflush branch pipe (5) is welded to the wall of the soot blowing pipe (1); The nozzle (2) is welded to the soot blowing pipe (1).

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