CN216693601U

CN216693601U - Boiler afterbody flue deposition processing apparatus

Info

Publication number: CN216693601U
Application number: CN202123441379.4U
Authority: CN
Inventors: 任现龙
Original assignee: Luoyang Zhuojie Environmental Protection Technology Co ltd
Current assignee: Luoyang Zhuojie Environmental Protection Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a boiler tail flue dust deposition treatment device which comprises a first air inlet pipe, an ignition box, a connecting pipe, a pulse tank air inlet pipe, a pulse tank and a nozzle, wherein the first air inlet pipe is connected with the ignition box; the gas enters the ignition box for combustion and explosion through the first gas inlet pipe, then enters the pulse tank gas inlet through the connecting pipe, and then enters the pulse tank through the pulse tank gas inlet pipe, and the generated shock wave rushes into the boiler tail flue from the nozzle. Compared with the prior art, the boiler tail flue dust deposition treatment device has the advantages that the connection relation between the ignition box and the pulse tank is adjusted, the output pipe is sleeved with the connecting pipe, and the connecting pipe is directly connected into the air inlet of the pulse tank downwards, so that after combustion and explosion, the dust directly enters the pulse tank through the air inlet pipe of the pulse tank, the combustion and explosion energy is reduced due to the fact that a pipeline is folded and bent, recoil is avoided, and the combustion and explosion strength is further guaranteed.

Description

Boiler afterbody flue deposition processing apparatus

Technical Field

The utility model relates to the technical field of boiler equipment, in particular to a boiler tail flue dust deposition treatment device.

Background

The boiler tail flue dust deposition treatment device is an appliance for removing dust deposition on a heating surface of a boiler, the dust deposition on the heating surface can influence the heat transfer effect, the exhaust gas temperature is increased, the boiler efficiency is reduced, and a superheater can be subjected to pipe explosion accidents in severe cases. Therefore, the dust deposition treatment device for the tail flue of the boiler is used for removing the dust deposition on various heating surfaces in time regularly, and the device has an important effect on ensuring the safe and economic operation of the boiler.

In the prior art, a soot blowing and dust removing treatment device is mostly adopted for carrying out soot blowing and dust removing cleaning on a tail flue of a steam boiler. The dust deposition treatment device of the tail flue of the steam boiler consists of a machine part and a motor part, and has the advantages of high energy consumption, complex structure, more steel consumption and large occupied space during installation. In addition, in the operation process of the boiler tail flue dust deposition treatment device, due to the reasons of machinery, electrical appliances and the like, the dust blowing pipe is often clamped in the boiler, the mechanical clamping is caused, the failure rate is high, the service life is short, and the pipe explosion accident is easily caused. The blow-by phenomenon is very common because of the rotating seal under steam pressure. The whole boiler tail flue dust deposition treatment device system has the problems of large maintenance amount, high maintenance cost, low dust blowing fullness, dead angle and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a boiler tail flue dust deposition treatment device which can be suitable for boilers of various models, reduces the combustion and explosion energy attenuated due to folding and bending of pipelines, avoids recoil and further ensures the combustion and explosion strength.

The technical scheme adopted by the utility model is as follows:

a boiler tail flue dust deposition treatment device comprises a first air inlet pipe, an ignition box, a connecting pipe, a pulse tank air inlet pipe, a pulse tank and a nozzle; the bottom of the ignition box is provided with an opening which is connected with the air inlet of the pulse tank through the connecting pipe, the ignition box is positioned above the air inlet of the pulse tank, and the bottom of the ignition box is higher than the air inlet of the pulse tank; and gas enters the ignition box through the first gas inlet pipe for combustion and explosion, then enters the gas inlet of the pulse tank through the connecting pipe, and then enters the pulse tank through the gas inlet pipe of the pulse tank, and generated shock waves are rushed into a flue at the tail part of the boiler from the nozzle.

Preferably, the height difference between the bottom of the ignition box and the air inlet of the pulse tank is not less than 100 mm.

Preferably, the air conditioner further comprises a second air inlet pipe, and the second air inlet pipe and the first air inlet pipe are mutually independent pipelines.

Preferably, the pulse can air inlet pipe is connected with one or more pulse cans.

Preferably, a first flow regulating valve is arranged on the first air inlet pipe and used for controlling the air inlet amount of the first air inlet pipe.

Preferably, a second flow regulating valve is arranged on the second air inlet pipe and used for controlling the air inlet amount of the second air inlet pipe.

Preferably, the ignition device further comprises an electric controller, wherein the electric controller is electrically connected with the ignition box and used for controlling the ignition box to ignite.

Preferably, the connection tube is a hose.

Preferably, the bottom of the ignition box is provided with an output pipe, and the output pipe is sleeved with the connecting pipe.

Compared with the prior art, the boiler tail flue dust deposition treatment device disclosed by the utility model has the advantages that the connection relation between the ignition box and the pulse tank is adjusted, the output pipe is sleeved with the connecting pipe, and the connecting pipe is directly connected with the air inlet of the pulse tank downwards, so that after combustion and explosion, the combustion and explosion energy is reduced because the pipeline is folded and bent to be attenuated, the occurrence of backflushing is avoided, and the combustion and explosion strength is further ensured.

Drawings

In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

FIG. 1 is a schematic structural diagram of an ash deposition treatment device for a boiler tail flue provided by an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pulse can of a boiler tail flue dust deposition treatment device provided by an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit the utility model.

The terms "first", "second", and the like in the embodiments of the present invention are only used for distinguishing related technical features, and do not indicate a sequential order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components.

Examples

The embodiment of the utility model provides a boiler tail flue dust deposition treatment device which can be mainly applied to boilers of various types in the fields of electric power, metallurgy, building materials, petrochemical industry and the like, and comprises various pulverized coal boilers, circulating fluidized bed boilers, oil-fired boilers, waste heat furnaces, heating furnaces, process furnaces, garbage incinerators and the like. The boiler tail gas preheating device can be suitable for a plurality of positions of the tail part of a boiler, including a superheater, a reheater, an economizer, an air preheater and the like.

As shown in fig. 1-2, a boiler tail flue dust deposition treatment device comprises a first air inlet pipe 1, an ignition box 3, a connecting pipe 4, an air inlet 5 of a pulse tank 7, an air inlet pipe 6 of the pulse tank 7, the pulse tank 7 and a nozzle 8; an opening is formed in the bottom of the ignition box 3 and is connected with an air inlet 5 of the pulse tank 7 through a connecting pipe 4, the ignition box 3 is located above the air inlet 5 of the pulse tank 7, and the bottom of the ignition box 3 is higher than the air inlet 5 of the pulse tank 7; gas is exploded in entering ignition box 3 through first intake pipe 1, then gets into 7 air inlets 5 of pulse jar through connecting pipe 4, gets into pulse jar 7 through 7 intake pipe 6 of pulse jar again, and the shock wave of production rushes into boiler afterbody flue from nozzle 8. The connection pipe 4 is a hose.

The height difference between the bottom of the ignition box 3 and the air inlet 5 of the pulse tank 7 is not less than 100 mm. Such setting has guaranteed that connecting pipe 4 directly inserts the air inlet of pulse jar 7 downwards, like this, directly gets into pulse jar 7 through pulse jar 7 intake pipe 6 after the blasting, reduces because the pipeline is folding, crooked decay the blasting energy, avoids appearing the recoil, and then guarantees the blasting dynamics.

The air conditioner further comprises a second air inlet pipe 2, and the second air inlet pipe 2 and the first air inlet pipe 1 are independent pipelines. In this embodiment, the first intake pipe 1 or the second intake pipe 2 may be applied separately, or the first intake pipe 1 and the second intake pipe 2 may be applied simultaneously. When only one inlet pipe is used, it is generally necessary to premix and proportion the desired gases in the pipe, while the two inlet pipes can be either premixed in the ignition chamber 3 or premixed in the pipes individually.

The air inlet pipe 6 of the pulse tank 7 is connected with one or more pulse tanks 7.

The first air inlet pipe 1 is provided with a first flow regulating valve for controlling the air inflow of the first air inlet pipe 1.

The second air inlet pipe 2 is provided with a second flow regulating valve for controlling the air inlet amount of the second air inlet pipe 2.

Still include the electric controller, the electric controller is connected with ignition box 3 electricity for control ignition box 3 ignites.

The air inlet quantity of the air inlet pipe is generally regulated and controlled through the air passage box. Specifically, the first flow regulating valve and the second flow regulating valve may be integrated on the gas circuit box. The gas circuit box can also be electrically connected with the electric controller, and then the electric controller can respectively regulate and control the ignition box 3 and the gas circuit box.

The bottom of the ignition box 3 is provided with an output pipe 31, and the output pipe 31 is sleeved with the connecting pipe 4. In practical production application, the output pipe 31 is set to be a hard pipe with higher strength, so that the exploded substances or/and energy can be restrained and then enter the pulse tank 7 through the connecting pipe 4.

Compared with the prior art, the boiler tail flue dust deposition treatment device has the advantages that the connection pipe 4 is sleeved on the output pipe 31 by adjusting the connection relation between the ignition box 3 and the pulse tank 7, and the connection pipe 4 is directly connected with the air inlet of the pulse tank 7 downwards, so that the dust directly enters the pulse tank 7 through the air inlet pipe 6 of the pulse tank 7 after burning and explosion, the burning and explosion energy is reduced due to the fact that a pipeline is folded and bent, the phenomenon of backflushing is avoided, and the burning and explosion strength is further guaranteed.

The device can effectively remove the deposited dust and coke on the heating surface by using the least energy within the shortest distance range, greatly improves the heat exchange efficiency and reduces the exhaust gas temperature, and has reliable operation and obvious effect. The system is provided with a plurality of safety defense lines, the operation in the optimal state is ensured, the safe and reliable operation of the equipment is ensured, the connection between the equipment adopts the connection of a flange hose and a threaded hose, and the installation is labor-saving and worry-saving. Each component in the device is provided with interlocking protection action of corresponding faults, and various faults are processed in a grading way, so that the operation of the whole device is not influenced by branch faults. The method is characterized in that a precision sensor produced by a professional manufacturer is applied, and regular self-checking, online multi-stage protection, interlocking protection, fault detection, fault alarm, fault diagnosis and fault treatment are realized under the control of a program, so that the safe and reliable operation of the system is ensured.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The boiler tail flue dust deposition treatment device is characterized by comprising a first air inlet pipe (1), an ignition box (3), a connecting pipe (4), a pulse tank (7) air inlet (5), a pulse tank (7) air inlet pipe (6), a pulse tank (7) and a nozzle (8);

an opening is formed in the bottom of the ignition box (3) and is connected with the air inlet (5) of the pulse tank (7) through the connecting pipe (4), the ignition box (3) is located above the air inlet (5) of the pulse tank (7), and the bottom of the ignition box (3) is higher than the air inlet (5) of the pulse tank (7);

gas enters the ignition box (3) through the first gas inlet pipe (1) to be combusted and exploded, then enters the pulse tank (7) gas inlet (5) through the connecting pipe (4), and then enters the pulse tank (7) through the pulse tank (7) gas inlet pipe (6), and generated shock waves are flushed into a boiler tail flue from the nozzle (8).

2. The boiler back flue ash deposition treatment device according to claim 1, wherein the height difference between the bottom of the ignition box (3) and the air inlet (5) of the pulse tank (7) is not less than 100 mm.

3. The boiler tail flue dust deposition treatment device according to claim 2, further comprising a second air inlet pipe (2), wherein the second air inlet pipe (2) and the first air inlet pipe (1) are independent pipelines.

4. The boiler tail flue ash deposition treatment device according to any one of the claims 1 to 3, characterized in that the air inlet pipe (6) of the pulse tank (7) is connected with one or more pulse tanks (7).

5. The boiler tail flue ash deposition processing device according to any one of the claims 1-3, characterized in that the first air inlet pipe (1) is provided with a first flow regulating valve for controlling the air inlet amount of the first air inlet pipe (1).

6. The boiler tail flue ash deposition processing device according to the claim 3, characterized in that the second air inlet pipe (2) is provided with a second flow regulating valve for controlling the air inlet amount of the second air inlet pipe (2).

7. The boiler tail flue ash deposition processing device according to the claim 4, characterized in that, the device also comprises an electric controller which is electrically connected with the ignition box (3) and is used for controlling the ignition of the ignition box (3).

8. The boiler back flue ash deposition treatment device according to claim 7, wherein the connecting pipe (4) is a hose.

9. The boiler tail flue ash deposition processing device according to the claim 1, characterized in that the bottom of the ignition box (3) is provided with an output pipe (31), and the output pipe (31) is sleeved with the connecting pipe (4).