阅读说明：本技术 用于烟气余热锅炉的吹灰装置 (Soot blower for flue gas waste heat boiler ) 是由 陈晨 申兴元 陈文政 陈祥顺 胡宝义 彭加华 于 2019-10-21 设计创作，主要内容包括：本发明公开了一种用于烟气余热锅炉的吹灰装置,包括送风机构、与所述送风机构连接的驱动机构、与所述驱动机构配合连接的传动机构以及与所述传动机构配合且与所述送风机构相连通的送风管道机构；其结构简单,清灰效果好,清灰效率高,通过驱动机构带动送风管道机构转动,使其在炉膛内实现360°范围内的清灰操作,吹扫全面,且通过送风管道机构特有的分支管道结构,保证了在风力输送过程中的压力均衡,提高了吹灰效果。(The invention discloses a soot blower for a flue gas waste heat boiler, which comprises an air supply mechanism, a driving mechanism connected with the air supply mechanism, a transmission mechanism connected with the driving mechanism in a matching way, and an air supply pipeline mechanism which is matched with the transmission mechanism and communicated with the air supply mechanism; its simple structure, the deashing is effectual, and the deashing is efficient, drives supply air duct mechanism through actuating mechanism and rotates, makes its deashing operation that realizes 360 within ranges in furnace, sweeps comprehensively, and through supply air duct mechanism's peculiar lateral conduit structure, has guaranteed that the pressure in wind-force transportation process is balanced, has improved and has blown the ash effect.)

1. The soot blower for the flue gas waste heat boiler is characterized by comprising an air supply mechanism (1), a driving mechanism (2) connected with the air supply mechanism (1), a transmission mechanism (3) connected with the driving mechanism (2) in a matching way, and an air supply pipeline mechanism (4) connected with the air supply mechanism (1) in a matching way and matched with the transmission mechanism (3);

the transmission mechanism (3) comprises a transmission case (30) with a hollow structure inside and a transmission gear, wherein the transmission case (30) is located in the transmission case (30) and is connected with the driving mechanism (2) in a matching mode, the driving mechanism (2) is arranged on the side wall of the transmission case (30), the transmission case (30) is far away from the side wall of the driving mechanism (2) and is provided with a bearing matched with the air supply pipeline mechanism (4), and the end portion of the air supply pipeline mechanism (4) penetrates through the transmission case (30) and is connected with the transmission gear.

2. The soot blower for a flue gas waste heat boiler according to claim 1, characterized in that the driving mechanism (2) comprises a step motor and a controller in communication connection with the step motor.

3. The soot blower for a flue gas waste heat boiler according to claim 1, wherein the blowing duct mechanism (4) comprises a blowing duct (40) in fit connection with the transmission gear and a soot blowing duct (41) connected with the blowing duct (40) and a duct joint (42) connected between the blowing duct (41) and the blowing duct (40).

4. The soot blowing device for a flue gas waste heat boiler according to claim 1, characterized in that the soot blowing pipe (41) comprises a main pipe (410) which is in fit connection with the pipe connection head (42) and a plurality of branch pipes (411) which are arranged inside the main pipe (410); the end part of the branch pipeline (411) inclines towards the outer side of the main pipeline (410) and extends to the outer side of the main pipeline (410).

5. The soot blower for a flue gas waste heat boiler according to claim 4, wherein a fixing plate (420) is arranged inside the pipe connector (42), a plurality of through holes (421) are formed in the fixing plate (420), and the end part of the branch pipe (411) far away from the main pipe (410) is connected in the through holes (421) in a matching manner.

6. The soot blower for a flue gas waste heat boiler according to claim 4, wherein a strip-shaped groove (412) is formed along the outer wall of the main pipe (410), a plurality of slotted holes (413) are distributed on the strip-shaped groove (412), and the end part of the branch pipe (411) far away from the pipe connector (42) obliquely penetrates through the slotted holes (413).

7. The soot blower for a flue gas waste heat boiler according to any one of claims 4 to 6, wherein inner threads are arranged on inner walls of two ends of the pipeline connector (42), and outer walls of the end part of the air supply pipeline (40) and the end part of the main pipeline (410) are provided with outer threads matched with the inner threads.

8. The soot blower for a flue gas waste heat boiler according to claim 3, wherein a supporting protective sleeve (43) is sleeved on the outer wall of the air supply duct (40), and the end of the supporting protective sleeve (43) is connected to the outer wall of the transmission case (30).

9. The sootblower for a flue gas waste heat boiler according to claim 8, characterized in that the supporting protective sleeve (43) is bolted to the outer wall of the transmission case (30).

10. The sootblower for a flue gas waste heat boiler according to claim 9, characterized in that the outer wall of the supporting protective sleeve (43) is sleeved with a supporting disk (44).

Technical Field

The invention relates to the technical field of boiler equipment, in particular to a soot blower for a flue gas waste heat boiler.

Background

The normal operation of the boiler can generate a large amount of dust, and the dust is easy to accumulate on the heating surfaces of the boiler, such as convection tubes and the like, thereby seriously influencing the normal operation of the boiler. In order to prevent dust from accumulating in the boiler, a soot blower is usually installed in the boiler, and the existing soot blower is large in size, inconvenient to install, incomplete in action range in the boiler, dead angle in blowing, low in soot blowing efficiency and poor in soot blowing effect.

Disclosure of Invention

The invention aims to provide a soot blowing device for a flue gas waste heat boiler, which solves the problem of poor soot blowing effect of the existing soot blowing device.

The technical scheme for solving the technical problems is as follows: the soot blowing device for the flue gas waste heat boiler comprises an air supply mechanism, a driving mechanism connected with the air supply mechanism, a transmission mechanism connected with the driving mechanism in a matching way, and an air supply pipeline mechanism which is matched with the transmission mechanism and communicated with the air supply mechanism;

the transmission mechanism comprises a transmission case with a hollow structure inside and a transmission gear which is positioned in the transmission case and is in fit connection with the driving mechanism, the driving mechanism is arranged on the side wall of the transmission case, a bearing matched with the air supply pipeline mechanism is arranged on the side wall of the transmission case far away from the driving mechanism, and the end part of the air supply pipeline mechanism penetrates through the transmission case and is connected with the transmission gear.

Further, the driving mechanism comprises a stepping motor and a controller in communication connection with the stepping motor.

Further, the air supply pipeline mechanism comprises an air supply pipeline which is connected with the transmission gear in a matched mode, a soot blowing pipeline which is connected with the air supply pipeline, and a pipeline connector which is connected between the air supply pipeline and the soot blowing pipeline.

Further, the soot blowing pipeline comprises a main pipeline which is matched and connected with the pipeline connector and a plurality of branch pipelines which are arranged inside the main pipeline; the end part of the branch pipeline inclines towards the outer side of the main pipeline and extends to the outer side of the main pipeline.

Further, the inside of pipe connection head is provided with the fixed plate, a plurality of through-holes have been seted up on the fixed plate, the lateral conduit is kept away from the tip cooperation of trunk line is connected in the through-hole.

Further, follow the bar groove has been seted up to the trunk line outer wall, it has a plurality of slotted holes to distribute on the bar groove, the lateral conduit is kept away from the tip slope of pipe connection head runs through the slotted hole.

Furthermore, internal threads are arranged on the inner walls of the two ends of the pipeline connector, and external threads matched with the internal threads are arranged on the outer wall of the end part of the air supply pipeline and the outer wall of the end part of the main pipeline.

Further, the outer wall of the air supply pipeline is sleeved with a supporting protective sleeve, and the end part of the supporting protective sleeve is connected to the outer wall of the transmission case.

Further, the supporting protective sleeve is connected to the outer wall of the transmission case through a bolt.

Further, the outer wall of the supporting protective sleeve is sleeved with a supporting disk.

The invention has the following beneficial effects: the soot blower for the flue gas waste heat boiler provided by the invention has the advantages that the soot blower is simple in structure, good in soot cleaning effect and high in soot cleaning efficiency, the air supply pipeline mechanism is driven to rotate by the driving mechanism, so that soot cleaning operation within a 360-degree range in a hearth is realized, blowing is comprehensive, and the rotating speed of the air supply pipeline mechanism can be controlled by the driving mechanism, so that blowing is performed on places with different accumulated dust thicknesses in the hearth for different times in a targeted manner, and the cost is reduced to a certain extent; and through the special branch pipeline structure of the air supply pipeline mechanism, the pressure balance in the wind power conveying process is ensured, and the soot blowing effect is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic view of the pipe joint according to the present invention;

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 3, the soot blower for a flue gas waste heat boiler includes an air supply mechanism 1, a driving mechanism 2 connected with the air supply mechanism 1, a transmission mechanism 3 connected with the driving mechanism 2 in a matching manner, and an air supply pipeline mechanism 4 connected with the air supply mechanism 1 in a matching manner with the transmission mechanism 3.

The air supply mechanism 1 provides a wind power source for the whole soot blower, ensures sufficient wind power input, and provides reliable guarantee for soot blowing operation, and comprises a fan and a pipeline connected with the fan. The driving mechanism 2 is used as a driving part of the whole device and comprises a stepping motor and a controller in communication connection with the stepping motor, the stepping motor is used for driving the air supply pipeline mechanism 4 to rotate, the controller adopts a single chip microcomputer, and the single chip microcomputer is mainly used for continuously receiving instructions, analyzing the instructions and executing the instructions according to a pre-programmed program to achieve expected results of users; the rotating speed of the stepping motor is controlled through the controller, the rotating speed of the air supply pipeline mechanism 4 and the soot blowing time are further controlled, the cost is reduced, and the soot blowing effect and efficiency are improved.

The transmission mechanism 3 is matched with the driving mechanism 2, and transmits power generated by the driving mechanism 2 to the air supply pipeline mechanism 4, so that the motion reliability of the air supply pipeline mechanism 4 is ensured. The transmission mechanism 3 comprises a transmission case 30 with a hollow structure inside and a transmission gear which is positioned in the transmission case 30 and is connected with the driving mechanism 2 in a matching way, the driving mechanism 2 is arranged on the side wall of the transmission case 30, a bearing matched with the air supply pipeline mechanism 4 is arranged on the side wall of the transmission case 30 far away from the driving mechanism 2, and the end part of the air supply pipeline mechanism 4 penetrates through the transmission case 30 and is connected with the transmission gear.

The air supply pipeline mechanism 4 comprises an air supply pipeline 40 which is in fit connection with a transmission gear, a soot blowing pipeline 41 which is connected with the air supply pipeline 40, and a pipeline connector 42 which is connected between the air supply pipeline 40 and the soot blowing pipeline 41. The driving mechanism 2 drives the transmission gear to rotate, and then drives the air supply pipeline 40 and the soot blowing pipeline 41 to rotate, so that the soot blowing pipeline 41 rotates within a range of 360 degrees, purging of each position of the hearth is guaranteed, and the soot blowing effect is improved. The pipe joint 42 is used as a connecting part between the air supply pipeline 40 and the soot blowing pipeline 41 to ensure the reliable connection between the air supply pipeline 40 and the soot blowing pipeline 41, inner threads are arranged on the inner walls of two ends of the pipe joint 42, and outer threads matched with the inner threads are arranged on the outer wall of the end part of the air supply pipeline 40 and the outer wall of the end part of the main pipeline 410. Through threaded connection, both guaranteed joint strength, the dismantlement between the part of being convenient for again, convenient washing maintenance and change, performance is good.

In order to further improve the soot blowing effect, in the present invention, the soot blowing pipeline 41 includes a main pipeline 410 cooperatively connected with the pipeline connector 42, and a plurality of branch pipelines 411 arranged inside the main pipeline 410; the end of the branch duct 411 is inclined outward of the main duct 410 and extends outward of the main duct 410. A strip-shaped groove 412 is formed in the outer wall of the main pipeline 410, a plurality of slotted holes 413 are distributed in the strip-shaped groove 412, and the end part, far away from the pipeline connector 42, of the branch pipeline 411 obliquely penetrates through the slotted holes 413. The lateral conduit 411 is a plurality of and different in length, and the lateral conduit 411 of different length cooperates with the slotted hole 413 of different positions respectively to run through slotted hole 413 respectively and extend to the trunk line 410 outside, realize blowing the soot operation, in the use, guaranteed pressure balance, avoided the not enough condition that causes of pipeline distal end pressure to blow the soot effect poor, blow effectually.

In order to improve the stable and reliable operation performance in the soot blowing process, in the invention, a supporting protective sleeve 43 is sleeved on the outer wall of the air supply pipeline 40, and the end part of the supporting protective sleeve 43 is connected to the outer wall of the transmission case 30. The support and protection sleeve 43 is bolted to the outer wall of the transmission case 30. The outer wall of the supporting protective sleeve 43 is sleeved with a supporting disk 44.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.