CN218954910U

CN218954910U - Spray head for soot blower

Info

Publication number: CN218954910U
Application number: CN202223281154.1U
Authority: CN
Inventors: 付金波
Original assignee: Hebei Green Protection And Environmental Protection Technology Co ltd
Current assignee: Hebei Green Protection And Environmental Protection Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-02
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the technical field of dust removal equipment, in particular to a spray head for a soot blower. The spray head comprises a spray head body communicated with a blowing pipe, wherein the spray head body comprises a gas pipe, one end of the gas pipe is communicated with the blowing pipe, the other end of the gas pipe is communicated with the middle part of a gas pipe, the parts of the gas pipe, which are positioned on two sides of the gas pipe, are respectively a first gas pipe and a second gas pipe, and the length of the first gas pipe is equal to that of the second gas pipe. The utility model adopts the arrangement of the first air jet pipe and the second air jet pipe on the air pipe communicated with the ash blowing pipe, and the lengths of the first air jet pipe and the second air jet pipe are different, so as to obtain better ash blowing effect.

Description

Spray head for soot blower

Technical Field

The utility model relates to the technical field of dust removal equipment, in particular to a spray head for a soot blower.

Background

The fixed rotary soot blower is mainly used for purging an economizer and an air preheater tube bank on a boiler tail flue, and is suitable for purging a heat exchanger with the flue gas temperature below 600 ℃. The structure of the fixed rotary soot blower in the prior art is shown as a fixed rotary soot blower with the name 201510215132.0, a soot blower gun is driven to rotate by a driving motor, a plurality of spray holes are formed in the soot blower gun, and air flow sprayed out of the spray holes sweeps a (economizer or air preheater) tube bank in the rotating process of the soot blower gun. In practical application, the soot blower is generally in a horizontal state, tube rows are arranged on the upper and lower sides of the soot blower, tube rows are also arranged on at least one of the left and right sides of the soot blower, and generally the tube rows on the upper and lower sides are closer to the soot blower than the tube rows on the left and right sides are farther from the soot blower, so that the lengths of paths of air flows sprayed by spray holes when reaching the tube rows in the process of rotating the soot blower to perform soot blowing are larger, the air flows with shorter paths have sufficient blowing force, but the blowing area is small (because the cross sectional area of the air flows which are outwards diffused after the air flows are sprayed from the spray holes is gradually increased), the blowing area of the air flows with longer paths is larger, but the blowing force is reduced more, and the blowing effect is not ideal.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a spray head for a soot blower, which aims to overcome the technical defects, and a first air jet pipe and a second air jet pipe are arranged on a gas pipe communicated with a soot blowing pipe, and the lengths of the first air jet pipe and the second air jet pipe are different, so that a better soot blowing effect is achieved.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a shower nozzle for soot blower, includes the shower nozzle body with the blowing pipe intercommunication, the shower nozzle body includes the gas-supply pipe, gas-supply pipe one end and blowing pipe intercommunication, the middle part of the other end intercommunication gas-supply pipe, the gas-supply pipe is located the part of gas-supply pipe both sides and is first gas-supply pipe and second gas-supply pipe respectively, and the length of first gas-supply pipe is greater than the length of second gas-supply pipe.

Further optimizing this technical scheme, the internal diameter of gas transmission pipe is greater than the internal diameter of first jet-propelled pipe and second jet-propelled pipe.

Further optimizing this technical scheme, the extending direction of gas-supply pipe is perpendicular to the axis of blowing pipe, the extending direction of gas-supply pipe is perpendicular to the extending direction of gas-supply pipe and perpendicular to the axis of blowing pipe.

Compared with the prior art, the utility model has the following advantages: 1. the lengths of the first air jet pipe and the second air jet pipe are different, the first air jet pipe has better soot blowing effect on the part on the pipe row far away from the soot blowing pipe, and the second air jet pipe has better soot blowing effect on the part on the pipe row near to the soot blowing pipe, so that the overall soot blowing effect is better; 2. the air flow blown out by the first air jet pipe and the second air jet pipe sequentially blow the ash on the same position of the pipe row from different angles, and the ash blowing effect is better.

Drawings

FIG. 1 is a schematic view of a lance tube structure provided with a lance head for the present sootblower.

Fig. 2 is a schematic structural view of the spray head body.

Fig. 3 is a schematic diagram of the device in use.

In the figure: 1. a lance tube; 2. a spray head body; 21. a gas pipe; 22. a first gas lance; 23. a second gas lance; 3. and (5) arranging pipes.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

The specific embodiment is as follows: referring to fig. 1-2, a nozzle for a soot blower includes a nozzle body 2 communicated with a soot blowing pipe 1, the nozzle body 2 includes a gas pipe 21, one end of the gas pipe 21 is communicated with the soot blowing pipe 1, the other end of the gas pipe 21 is communicated with the middle part of a gas pipe, the parts of the gas pipe located at two sides of the gas pipe 21 are a first gas pipe 22 and a second gas pipe 23 respectively, and the length of the first gas pipe 22 is greater than that of the second gas pipe 23. In order to obtain a better soot blowing effect, a plurality of spray nozzle bodies 2 are arranged on two sides of the soot blowing pipe 1 at equal intervals, and the spray nozzle bodies 2 on the two sides are arranged at intervals on the axial direction of the soot blowing pipe 1, namely, one spray nozzle body 2 on one side is positioned between two adjacent spray nozzle bodies 2 on the other side, so that a missing place is not easy to appear in the axial direction of the soot blowing pipe 1 during soot blowing.

Preferably, the inner diameter of the gas pipe 21 is larger than the inner diameters of the first gas injection pipe 22 and the second gas injection pipe 23, and the cross-sectional area of the gas pipe 21 is preferably not smaller than the sum of the cross-sectional areas of the first gas injection pipe 22 and the second gas injection pipe 23, so that the first gas injection pipe 22 and the second gas injection pipe 23 can obtain sufficient gas flow supply, and the gas flow ejected from the first gas injection pipe 22 and the second gas injection pipe 23 can have larger speed and flow rate.

Preferably, the extension direction of the gas pipe 21 is perpendicular to the axis of the lance pipe 1, and the extension direction of the gas pipe is perpendicular to the extension direction of the gas pipe 21 and perpendicular to the axis of the lance pipe 1, and in the case that the lengths of the first gas pipe 22 are the same, they can be extended further outwards with respect to the axis of the lance pipe 1, and in the latter case, the lengths of the first gas pipe 22 can be shorter.

In use, as shown in FIG. 3, the lengths of the first and

second gas lances

22, 23 may be selected as practical. The length of the first air ejector tube 22 can be as long as possible without touching the upper and lower tube rows 3, but cannot be too long, because the shorter the distance of the air flow, the smaller the blowing area is, so that when the air flow ejected from the first air ejector tube 22 is ejected to the left tube row 3 and the joint of the left side and the upper and lower tube rows 3 (the farthest from the axis of the ash blowing tube 1), the air flow ejected from the adjacent first air ejector tube 22 can overlap a part so as to avoid the blowby part, and the first air ejector tube 22 has better soot blowing effect on the tube row 3 far from the axis of the ash blowing tube 1. The second gas lance 23 can be shorter and the gas flow emitted by it has a better soot blowing effect on the parts of the tube row 3 which are closer to the axis of the soot blowing tube 1. And for the same position on the tube bank 3, when the air flows blown by the first air ejector tube 22 and the second air ejector tube 23 blow on the position (not at the same time), the angle formed by the air flows blown by the first air ejector tube 22 and the second air ejector tube 23 is different from the position, namely the air flows blown by the first air ejector tube 22 and the second air ejector tube 23 blow on the same position of the tube bank 3 from different angles in sequence, so that the soot blowing effect is better.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The utility model provides a shower nozzle for soot blower, includes shower nozzle body (2) with blowing pipe (1) intercommunication, its characterized in that: the shower nozzle body (2) includes gas-supply pipe (21), gas-supply pipe (21) one end and blowing pipe (1) intercommunication, the middle part of gas-supply pipe (21) other end intercommunication gas-supply pipe, the gas-supply pipe is located the part of gas-supply pipe (21) both sides and is first gas-supply pipe (22) and second gas-supply pipe (23) respectively, and the length of first gas-supply pipe (22) is greater than the length of second gas-supply pipe (23).

2. The sootblower nozzle of claim 1 wherein: the inner diameter of the gas transmission pipe (21) is larger than the inner diameters of the first gas injection pipe (22) and the second gas injection pipe (23).

3. The sootblower nozzle of claim 1 wherein: the extension direction of the air delivery pipe (21) is perpendicular to the axis of the ash blowing pipe (1), and the extension direction of the air injection pipe is perpendicular to the extension direction of the air delivery pipe (21) and perpendicular to the axis of the ash blowing pipe (1).