CN219656096U

CN219656096U - Air shock wave soot blower with rotary jet pipe

Info

Publication number: CN219656096U
Application number: CN202320564886.7U
Authority: CN
Inventors: 石辰峰; 孙吉军; 孙龙威; 金忠璨; 车东
Original assignee: Dalian Power Plant of Huaneng International Power Co Ltd
Current assignee: Dalian Power Plant of Huaneng International Power Co Ltd
Priority date: 2023-03-21
Filing date: 2023-03-21
Publication date: 2023-09-08
Anticipated expiration: 2033-03-21

Abstract

The utility model relates to the technical field of air shock wave soot blowers, in particular to an air shock wave soot blower with a rotary jet pipe, which comprises a shock wave tank and a boiler wall, wherein the top end of the shock wave tank is connected with an air inlet valve group, the bottom end of the shock wave tank is connected with a wall penetrating sealing pipe, an adjusting block is arranged in the wall penetrating sealing pipe, one end, close to the wall penetrating sealing pipe, far away from the boiler wall is provided with a movable block, the middle of the adjusting block is provided with a motor, the executing end of the motor is connected with the movable block, six adjusting holes are formed in the periphery of the adjusting block, and a rotary spray nozzle is arranged on the movable block; the jet nozzle is driven to rotate by the motor, so that the impact shock wave jet nozzle rotates by an angle along with each impact pulse, and the jet nozzle rotates by one circle by a plurality of pulses (6 times), so that the maximum range of impact wave energy is utilized most effectively, and the optimal soot blowing effect is obtained.

Description

Air shock wave soot blower with rotary jet pipe

Technical Field

The utility model relates to the technical field of air shock wave soot blowers, in particular to an air shock wave soot blower with a rotary jet pipe.

Background

When the boiler has heating surface, a great amount of dust particles, loose matters, adhesion matters and sediments can be accumulated in the long-term use process, so that the tail exhaust gas temperature of the boiler is increased, and the thermal efficiency of the boiler is reduced. The traditional boiler ash cleaning, often using the gas shock wave ash remover, it uses common combustible gas such as acetylene (gas, natural gas, liquefied gas) and air, after passing through the respective flow measurement and control system, mix uniformly according to a certain proportion, then send into the combustion chamber to pulse combustion.

Through retrieval, chinese patent number CN206973595U discloses an air shock wave soot blower with a jet pipe, which comprises an electric cabinet, a ball valve, a pneumatic control box, a shock wave generator and a rotary spray head arranged on a furnace wall; the air outlet of the ball valve is connected with the air inlet of the pneumatic control box and the air outlet of the shock wave generator through the air transmission pipeline respectively; the air outlet of the air control box is communicated with the air inlet of the shock wave generator through an air transmission pipeline; the air outlet of the shock wave generator is communicated with the rotary spray head, and a spray pipe is arranged in the shock wave generator; the air injection end of the rotary spray head is arranged in the furnace wall; the rotary spray head comprises an outer pipe and an inner pipe, one end of the inner pipe is an air injection end, the other end of the inner pipe is provided with a rotating shaft arranged along the axis of the inner pipe, the rotating shaft is connected with a cylinder for driving the rotating shaft to rotate, and an air inlet of the cylinder is connected with an air outlet of the pneumatic control box through a gas pipeline; the input end of the electric cabinet is connected with a power supply, and the output end of the electric cabinet is respectively connected with the shock wave generator and the pneumatic control box through control cables.

The automatic ash removal device is high in automation degree, can be started according to a time mode, can also be started according to an air pressure mode, can be started according to a boiler operation parameter mode, can be started in a single mode, can be started in a combined mode, but a large amount of accumulated ash of a folded flame angle slope is mainly concentrated between a folded flame angle slope corner and a rear horizontal pipe, the accumulated ash at the lower part of the high-temperature reheater is buried in the wall of the slope pipe, a part of hearth outlet is blocked, and the accumulated ash at the edge dead angle can not be removed by a single-direction spray head.

Disclosure of Invention

The utility model aims to provide an air shock wave soot blower with a rotary jet pipe, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an air shock wave soot blower with rotatory injection pipe, includes shock wave jar and boiler wall, the top connection of shock wave jar is equipped with the valve group that admits air, the bottom connection of shock wave jar is equipped with wears the wall sealed tube, wear the wall sealed tube setting in the boiler wall, wear the wall sealed tube to be located the boiler wall is kept away from the one end of shock wave jar is equipped with multi-angle shower nozzle device, multi-angle shower nozzle device includes regulating block, motor, regulation hole, movable block and rotatory nozzle, wear the inside regulating block that is equipped with of wall sealed tube, the regulating block is close to wear the wall sealed tube and keep away from the one end of boiler wall is equipped with the movable block, be equipped with the motor in the middle of the regulating block, the execution end of motor with the movable block is connected, the regulating block is located be equipped with six angle shower nozzle around the motor, be equipped with rotatory nozzle on the movable block.

As a preferable scheme of the utility model, the positions of the rotary spray heads are in one-to-one correspondence with the positions of the regulating holes when the movable blocks rotate.

As a preferable scheme of the utility model, a rubber pad is arranged in the wall-penetrating sealing pipe, and an inner pipe is arranged at one side of the rubber pad, which is far away from the wall-penetrating sealing pipe.

As a preferable scheme of the utility model, the inner pipe is fixedly connected with the regulating block, the motor is fixedly connected with the regulating block, the executing end of the motor is fixedly connected with the movable block, the movable block is movably connected with the inner pipe and the regulating block, and the size of the movable block is consistent with that of the inner pipe.

As a preferable scheme of the utility model, the air inlet valve group is connected with the shock wave tank, and a ball valve, an air cylinder removing electromagnetic valve, a filter and an air inlet electromagnetic valve are sequentially arranged from far to near.

As a preferable scheme of the utility model, the shock wave tank, the multi-angle spray head device and the air inlet valve group are all connected with a control panel.

Compared with the prior art, the utility model has the beneficial effects that: the utility model adopts a rotating component, controls the shock wave blowing frequency and energy through a central control PLC system, and can realize full-automatic unattended operation; the jet nozzle is driven to rotate by the motor, so that the impact shock wave jet nozzle rotates by an angle along with each impact pulse, and the jet nozzle rotates by one circle by a plurality of pulses (6 times), so that the maximum range of impact wave energy is utilized most effectively, and the optimal soot blowing effect is obtained.

Drawings

FIG. 1 is a perspective view of the shock tank structure of the present utility model;

FIG. 2 is a flow chart of the overall structure of the present utility model;

FIG. 3 is a cross-sectional view of a multi-angle spray head apparatus according to the present utility model;

fig. 4 is a plan view of the structure of the adjusting block of the present utility model.

In the figure: 1. a control panel; 2. an air inlet valve group; 201. a ball valve; 202. removing an air cylinder electromagnetic valve; 203. a filter; 204. an air inlet electromagnetic valve; 3. a shock wave tank; 301. a wall-penetrating sealing pipe; 302. a rubber pad; 303. an inner tube; 4. a boiler wall; 5. a multi-angle spray head device; 501. an adjusting block; 502. a motor; 503. an adjustment aperture; 504. a movable block; 505. and rotating the spray head.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides an air shock soot blower with rotatory jet tube, includes shock wave jar 3 and boiler wall 4, the top connection of shock wave jar 3 is equipped with air inlet valve group 2, the bottom connection of shock wave jar 3 is equipped with wears the wall sealed tube 301, wear the wall sealed tube 301 setting in the boiler wall 4, wear the wall sealed tube 301 to be located boiler wall 4 is kept away from the one end of shock wave jar 3 is equipped with multi-angle shower nozzle device 5, multi-angle shower nozzle device 5 includes regulating block 501, motor 502, regulation hole 503, movable block 504 and rotatory nozzle 505, wear the inside regulating block 501 that is equipped with of wall sealed tube 301, the regulating block 501 is close to wear the wall sealed tube 301 is kept away from the one end of boiler wall 4 is equipped with movable block 504, be equipped with motor 502 in the middle of the regulating block 501's the execution end with movable block 504 is connected, the regulating block 501 is located six hole 503 are located around the motor 502, be equipped with rotatory nozzle 505 on the movable block 504, rotatory nozzle 505 the position take place the motor block 505 in the time of the movable block 501 and the movable block 501 the movable block 502 with the movable block 501 the fixed size when the movable block 501 and the movable block 501 take place the fixed connection.

In this embodiment, the shock wave spraying frequency and energy are set in the control of the central control PLC system of the control panel 1, compressed air enters the shock wave tank 3 through the air inlet valve set 2 and is sprayed out from the multi-angle spray head device 5 through the through-wall sealing tube 301, when spraying ash, the controller sends an electrical signal to the motor 502, the rotation frequency of the motor 502 is consistent with the shock wave spraying frequency, so that the shock wave rotating spray head 505 rotates by an angle with each shock pulse, the rotating spray head 505 just rotates by one circle with a plurality of pulses (6 times), and six adjusting holes 503 are aligned in sequence, so that the maximum range of the shock wave energy is utilized most effectively, and the best ash blowing effect is obtained.

Referring to fig. 1-2, a rubber pad 302 is disposed in the through-wall sealing tube 301, an inner tube 303 is disposed on a side of the rubber pad 302 away from the through-wall sealing tube 301, the air intake valve assembly 2 is connected with the shock tank 3, a ball valve 201, a de-air cylinder electromagnetic valve 202, a filter 203 and an air intake electromagnetic valve 204 are sequentially disposed at a distance between the air intake valve assembly 2 and the shock tank 3 from far to near, and the shock tank 3, the multi-angle nozzle device 5 and the air intake valve assembly 2 are all connected with the control panel 1.

In this embodiment, the shock wave generator is composed of a shock wave tank 3, an air inlet valve group 2 and an on-site distribution box, the volume of the shock wave generator is 0.1m3, the storage tank can bear the pressure of 0.4 MPa-1.6 MPa, and the release and decompression time is 1S-2S.

The working flow of the utility model is as follows: the model of the PLC controller is as follows: "6ES7214-1HG40-0XB0", model of motor 502 is: "DMBR-11E".

The shock tank 3 is a 360-degree rotary air shock wave soot blower, compressed air is accumulated in a pulse tank and then released instantaneously through a nozzle, and the pressure is increased suddenly under the condition that the volume of gas is reduced suddenly, so that high-pressure supersonic airflow is generated, and shock waves are generated. The novel soot blower for eliminating boiler dust deposit adopts instantaneous decompression release technology and utilizes the energy of ultrasonic fluid shock wave (shock wave) instantaneously. Meanwhile, the product of me department adopts a shock wave generator with a special structure, the duration time of each pulse generation is more than 100 milliseconds, and the intensity can reach Mach 5 (the intensity of shock waves in a spray pipe). Compared with the traditional steam soot blower, gas shock wave soot blower and sound wave soot blower, the product has the characteristics of large action space, good soot blowing effect, low energy consumption, simple structure, safety, reliability, convenient maintenance, flexible control and the like.

The shock wave generator consists of a shock wave tank 3, an air inlet valve group 2 and an on-site distribution box, the volume of the shock wave generator is 0.1m3, the storage tank can bear the pressure of 0.4 MPa-1.6 MPa, and the release and pressure release time is 1S-2S.

The shock wave blowing frequency and energy are set in the control of the central control PLC system of the control panel 1, compressed air enters the shock wave tank 3 through the air inlet valve group 2 and is sprayed out of the multi-angle spray head device 5 through the wall-penetrating sealing pipe 301, when in ash spraying, the controller sends an electric signal to the motor 502, the rotation frequency of the motor 502 is consistent with the shock wave blowing frequency, the shock wave rotary spray head 505 rotates by an angle along with each shock pulse, the rotary spray head 505 just rotates by one circle after a plurality of pulses (6 times), and six adjusting holes 503 are aligned in sequence, so that the maximum range and the most effective utilization of the shock wave energy are realized, and the best ash blowing effect is obtained.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An air shock wave soot blower with rotary jet pipe, comprising a shock wave tank (3) and a boiler wall (4), characterized in that: the utility model provides a shock wave jar (3) top connection is equipped with valve block (2) that admits air, the bottom connection of shock wave jar (3) is equipped with wears to wall sealed tube (301), wear to wall sealed tube (301) setting in boiler wall (4), wear to wall sealed tube (301) are located boiler wall (4) keep away from the one end of shock wave jar (3) is equipped with multi-angle shower nozzle device (5), multi-angle shower nozzle device (5) are including regulating block (501), motor (502), regulation hole (503), movable block (504) and rotatory nozzle (505), wear to wall sealed tube (301) inside to be equipped with regulating block (501), regulating block (501) are close to wear to wall sealed tube (301) are kept away from the one end of boiler wall (4) is equipped with movable block (504), be equipped with motor (502) in the middle of regulating block (501), the execution end of motor (502) with movable block (504) are connected, regulating block (501) are located be equipped with six regulation holes (503) around motor (502), be equipped with rotatory nozzle (505).

2. An air shock sootblower with rotary jet stack as recited in claim 1 wherein: the positions of the rotary spray heads (505) are in one-to-one correspondence with the positions of the regulating holes (503) when the movable blocks (504) rotate.

3. An air shock sootblower with rotary jet stack as recited in claim 1 wherein: a rubber pad (302) is arranged in the through-wall sealing pipe (301), and an inner pipe (303) is arranged on one side, away from the through-wall sealing pipe (301), of the rubber pad (302).

4. An air shock sootblower with rotary jet stack as recited in claim 3 wherein: the inner tube (303) with regulating block (501) fixed connection, motor (502) with regulating block (501) fixed connection, the execution end of motor (502) with movable block (504) fixed connection, movable block (504) with inner tube (303) and regulating block (501) swing joint, the size of movable block (504) with the size of inner tube (303) is unanimous.

5. An air shock sootblower with rotary jet stack as recited in claim 1 wherein: the air inlet valve group (2) is connected with the shock wave tank (3), and a ball valve (201), an air cylinder removing electromagnetic valve (202), a filter (203) and an air inlet electromagnetic valve (204) are sequentially arranged at the distance between the air inlet valve group (2) and the shock wave tank (3) from far to near.

6. An air shock sootblower with rotary jet stack as recited in claim 1 wherein: the shock wave tank (3), the multi-angle spray head device (5) and the air inlet valve group (2) are all connected with the control panel (1).