Soot blower of air preheater

Abstract

The utility model is suitable for the technical field of boiler cleaning, and provides an air preheater soot blower which comprises a beam body, a wall box is arranged on the beam body, and a soot blowing gun used for blowing air to clean a boiler air preheater is arranged at the air outlet end of the wall box. The air inlet valve is fixed to the beam body, and an inner pipe used for supplying air into the wall box is fixedly installed at the air outlet end of the air inlet valve. And the temperature control box is used for controlling the air outlet temperature and is arranged on one side of the beam body. According to the soot blower of the air preheater, through cooperative work of all the components, efficient and automatic soot cleaning of the boiler air preheater is achieved, and many problems existing in a traditional manual cleaning mode are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of boiler cleaning, in particular to a soot blower for an air preheater. Background Art

[0002] During boiler operation, the air preheater is a key heat recovery device that can effectively improve the thermal efficiency of the boiler.

[0003] However, due to long-term operation and impurities in the fuel, the heat exchange surface of the air preheater will inevitably accumulate dust and scale. These deposits not only reduce the heat exchange efficiency, but may also cause equipment failure and even affect the stable operation of the entire boiler system. It is troublesome and inconvenient to clean the impurities manually through traditional methods. Utility Model Content

[0004] The utility model provides an air preheater soot blower, aiming to solve the problems of incomplete cleaning of the heat exchange surface of the air preheater in the current boiler system, low efficiency, and complex operation and great damage to the equipment by the traditional cleaning method.

[0005] The utility model is implemented as follows: a soot blower for an air preheater comprises: a beam body, a wall box is arranged on the beam body, and a soot blower gun for blowing air to clean the boiler air preheater is arranged on the air outlet end of the wall box; an air inlet valve, the air inlet valve is fixed on the beam body, and an inner pipe for supplying air to the wall box is fixedly installed on the air outlet end of the air inlet valve; a temperature control box for controlling the outlet air temperature, the temperature control box is arranged on one side of the beam body; an air supply pipe, the air supply pipe is fixedly installed in the temperature control box, the air outlet end of the air supply pipe is fixedly connected to the air inlet end of the air inlet valve; a fan for supplying air, the fan is fixedly installed on the temperature control box; a connecting pipe, the connecting pipe is fixedly connected to the temperature control box, and the air inlet end of the connecting pipe is fixedly connected to the air outlet end of the temperature control box; a dust filtering mechanism for filtering dust in the air entering the fan, the dust filtering mechanism is arranged on the temperature control box.

[0006] Preferably, the dust filtering mechanism includes: a filter box arranged on the top of the temperature control box, the air outlet end of the filter box is fixedly connected to the air inlet end of the fan through a pipeline; a plurality of detachable filter plates vertically assembled in the filter box for filtering dust and impurities; and an air inlet pipe fixedly connected to one side of the filter box.

[0007] Preferably, a plurality of electric heating tubes for heating air are arranged in the temperature control box, a thermostat for controlling the start and stop of the electric heating tubes is arranged on one side of the temperature control box, and an assembly frame for supporting the temperature control box is fixedly mounted on the beam body.

[0008] Preferably, a support block is symmetrically fixedly mounted on the assembly frame, and the top of the support block is fixedly connected to the bottom of the temperature control box.

[0009] Preferably, a rear support hanger is provided on the top of the beam body, and a sports car for regulating the in and out movement of the sootblowing gun is also provided on the beam body.

[0010] Preferably, a detachable box cover is provided on the top of the filter box, a hook for limiting position is fixedly mounted on the box cover, and a buckle that can be engaged with or separated from the hook is fixedly mounted on the filter box.

[0011] Preferably, a groove block is provided at the top of the filter box, a plug-in block is provided in the groove block, and the top end of the plug-in block is fixedly connected to the bottom of the filter box.

[0012] Compared with the related art, the air preheater sootblower provided by the utility model has the following beneficial effects:

[0013] By adopting key components such as wall boxes and sootblower guns, and optimizing the structure of the air inlet valve and temperature control box, the sootblower significantly improves the cleaning efficiency and effect, making the cleaning of the heat exchange surface more thorough, thereby improving the overall operating efficiency of the boiler; secondly, by adding a dust filtering mechanism and a detachable filter plate, the sootblower effectively filters the dust entering the air supply system, reduces damage to the fan and the entire system, extends the service life, and reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A side structural schematic diagram of an air preheater soot blower provided by the utility model;

[0015] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0017] Figure 4 It is a structural schematic diagram of the assembly rack and the temperature control box in the utility model.

[0018] Figure numerals: 1. beam body; 2. wall box; 3. soot blowing gun; 4. air inlet valve; 5. temperature control box; 6. air supply pipe; 7. fan; 8. connecting pipe; 9. filter box; 10. filter plate; 11. air inlet pipe; 12. electric heating pipe; 13. assembly frame; 14. box cover; 15. rear support bracket; 16. support block. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model embodiment provides an air preheater soot blower, such as Figure 1-4 As shown, the air preheater sootblower comprises: a beam body 1, on which a wall box 2 is arranged, and a sootblower lance 3 for blowing and cleaning the boiler air preheater is arranged on the air outlet end of the wall box 2; an air inlet valve 4, which is fixed on the beam body 1, and an inner pipe for supplying air to the wall box 2 is fixedly installed on the air outlet end of the air inlet valve 4; a temperature control box 5 for controlling the outlet air temperature, and the temperature control box 5 is arranged on one side of the beam body 1; an air supply pipe 6, which is fixedly installed in the temperature control box 5, and the air outlet end of the air supply pipe 6 is fixedly connected to the air inlet end of the air inlet valve 4; a fan 7 for supplying air, and the fan 7 is fixedly installed on the temperature control box 5; a connecting pipe 8, which is fixedly connected to the temperature control box 5, and the air inlet end of the connecting pipe 8 is fixedly connected to the air outlet end of the temperature control box 5; a dust filtering mechanism for filtering dust in the air entering the fan 7, and the dust filtering mechanism is arranged on the temperature control box 5.

[0022] It should be noted that, however, long-term operation and impurities carried in the fuel will inevitably lead to the accumulation of dust and scale on the heat exchange surface of the air preheater. These deposits not only adhere to the heat exchange surface, but may also accumulate in the gaps and corners of the equipment, thus seriously affecting its heat exchange efficiency. Specifically, the presence of dust and scale will hinder the transfer of heat, resulting in reduced heat exchange effect, which in turn reduces the combustion efficiency of the boiler and increases energy consumption; in addition, these deposits may also have a further negative impact on the operation of the air preheater; they may change the surface properties of the heat exchange surface, increase friction and resistance, make the air flow poor, and may even cause equipment failure. More seriously, if the accumulation of dust and scale reaches a certain extent, it may also affect the stable operation of the entire boiler system, causing shutdown or more serious consequences; although the traditional manual cleaning method can solve this problem to a certain extent, this method has many inconveniences and limitations. First, manual cleaning requires a lot of manpower and time, and is inefficient. Secondly, since the air preheater is usually located inside the boiler, the working environment is harsh, the temperature is high, and there is a lot of dust, which poses a threat to the health and safety of the cleaning personnel. Furthermore, manual cleaning is often difficult to completely remove all sediments, especially for some hard-to-reach areas, the effect is even more limited; therefore, in order to solve the above problems, it is particularly urgent to develop an efficient, safe and reliable automatic dust removal equipment;

[0023] In this embodiment, the beam body 1 serves as the basic supporting structure of the entire sootblower. The beam body 1 stably carries key components such as the wall box 2 and the air inlet valve 4, ensuring the stability and reliability of the sootblower during operation; the wall box 2 serves as a key component connecting the sootblowing gun 3 and the air supply system, and the sootblowing gun 3 provided on the air outlet end thereof can directly blow air to clean the boiler air preheater. The sealing design of the wall box 2 effectively prevents gas leakage and ensures the maximum sootblowing effect; the sootblowing gun 3 serves as a cleaning tool that directly acts on the heat exchange surface, and can quickly and effectively remove dust and scaling attached to the heat exchange surface through high-pressure gas injection. This design greatly improves the cleaning efficiency and reduces energy consumption; the air inlet valve 4 is responsible for controlling the flow of gas, and the inner tube fixedly installed on its outlet end transports the gas to the wall box 2, providing a stable gas source for the sootblowing gun 3; the precise control of the air inlet valve 4 ensures the stability of the gas flow during the sootblowing process and improves the cleaning effect; the setting of the temperature control box 5 enables the sootblower to adjust the outlet temperature according to actual needs, avoiding damage to the heat exchange surface due to excessively high or low temperature. This design not only improves the safety of the soot blower, but also extends the service life of the heat exchange surface; the air supply pipe 6 transports the air generated by the fan 7 to the temperature control box 5, providing a stable air source for the soot blower. The efficient operation of the fan 7 ensures sufficient gas supply and meets the long-term and high-intensity cleaning requirements; the connecting pipe 8 connects the air outlet of the temperature control box 5 with the outside world, ensuring the gas circulation in the temperature control box 5 and preventing safety hazards caused by gas accumulation; the dust filter mechanism is set on the temperature control box 5, which can effectively filter the dust in the air entering the fan 7, preventing the dust from damaging the fan 7 and the entire air supply system. This design not only improves the service life of the soot blower, but also reduces the maintenance cost.

[0024] In a further preferred embodiment of the utility model, the dust filtering mechanism includes: a filter box 9 arranged on the top of the temperature control box 5, the air outlet end of the filter box 9 is fixedly connected to the air inlet end of the fan 7 through a pipeline; a plurality of detachable filter plates 10 vertically assembled in the filter box 9 for filtering dust and impurities; and an air inlet pipe 11 fixedly connected to one side of the filter box 9.

[0025] In this embodiment, the filter box 9 is arranged on the top of the temperature control box 5, and is fixedly connected with the air inlet end of the fan 7 through a pipeline; this means that the air entering the fan 7 must first be filtered by the filter box 9 to ensure the cleanliness of the air, thereby avoiding the damage of dust and impurities to the fan 7 and the entire air supply system; inside the filter box 9, a number of detachable filter plates 10 are vertically installed. These filter plates 10 can effectively filter out dust and impurities in the air, ensuring that only clean air can enter the fan 7; and the detachable design of the filter plate 10 makes it more convenient to clean and replace the filter plate 10, improving the convenience of maintenance; the air inlet pipe 11 is fixedly connected to one side of the filter box 9, responsible for introducing the outside air into the filter box 9; since the connection between the air inlet pipe 11 and the filter box 9 is fixed, this ensures the smooth introduction of air, and also prevents dust and impurities from entering from the connection.

[0026] In a further preferred embodiment of the utility model, a plurality of electric heating tubes 12 for heating air are arranged in the temperature control box 5, a thermostat for controlling the start and stop of the electric heating tubes 12 is arranged on one side of the temperature control box 5, and an assembly frame 13 for supporting the temperature control box 5 is fixedly installed on the beam body 1.

[0027] In this embodiment, a number of electric heating tubes 12 are arranged inside the temperature control box 5 for heating air. These electric heating tubes 12 can be started and stopped according to the instructions of the thermostat, so as to realize the precise control of the air supply temperature; by heating the air, the soot blower can provide a higher temperature soot blowing airflow when needed, effectively removing the stubborn dirt attached to the heat exchange surface; a thermostat is arranged on one side of the temperature control box 5 for controlling the start and stop of the electric heating tube 12. The thermostat can automatically adjust the working state of the electric heating tube 12 according to the set temperature value or the actual temperature value fed back by the sensor, so as to ensure the stability and accuracy of the air supply temperature. This design enables the soot blower to adapt to the soot cleaning requirements under different working conditions, improves the soot cleaning effect and flexibility of use; an assembly frame 13 is fixedly installed on the beam body 1 for carrying the temperature control box 5. The design of the assembly frame 13 makes the installation of the temperature control box 5 more stable and reliable, and also facilitates the maintenance and repair of the temperature control box 5. Through the support of the assembly frame 13, the temperature control box 5 can remain stable during operation, reducing the risk of damage caused by vibration or impact.

[0028] In a further preferred embodiment of the present invention, a support block 16 is symmetrically fixedly installed on the assembly frame 13 , and the top of the support block 16 is fixedly connected to the bottom of the temperature control box 5 .

[0029] In this embodiment, support blocks 16 are symmetrically fixedly installed on the upper part of the assembly frame 13. The tops of these support blocks 16 are fixedly connected to the bottom of the temperature control box 5 to form a stable support structure. The symmetrical design of the support blocks 16 can evenly share the weight of the temperature control box 5 and ensure its stability during operation.

[0030] In a further preferred embodiment of the present invention, a rear support bracket 15 is provided on the top of the beam body 1, and a sports car for regulating the in and out movement of the sootblowing gun 3 is also provided on the beam body 1.

[0031] In this embodiment, a rear support hanger 15 is provided on the top of the beam body 1. This design not only provides additional support for the beam body 1 and enhances its overall stability, but also facilitates the installation and fixation of components such as the sootblowing gun 3. The stability of the rear support hanger 15 ensures the stability of the sootblowing gun 3 during operation, thereby improving the cleaning effect; a sports car is also provided on the beam body 1, and the function of the sports car is to regulate the in and out movement of the sootblowing gun 3. Through the precise control of the sports car, the sootblowing gun 3 can move according to the predetermined trajectory and speed, so as to achieve comprehensive and uniform cleaning of the heat exchange surface. This design not only improves the cleaning efficiency, but also reduces the risk of damage to the heat exchange surface.

[0032] In a further preferred embodiment of the utility model, a detachable box cover 14 is provided on the top of the filter box 9, a hook for limiting position is fixedly mounted on the box cover 14, and a buckle that can be engaged with or separated from the hook is fixedly mounted on the filter box 9.

[0033] In this embodiment, a detachable box cover 14 is provided on the top of the filter box 9. This design allows the user to conveniently open or close the filter box 9, so as to replace, clean or inspect the filter plate 10; the detachability of the box cover 14 greatly improves the practicality of the filter box 9, making maintenance work simpler and more efficient; a hook for limiting is fixedly installed on the box cover 14, and a buckle that can be engaged or separated with the hook is fixedly installed on the filter box 9. This matching design of the hook and the buckle ensures the stability and sealing of the box cover 14 when it is closed. When the user needs to open the box cover 14, he only needs to simply separate the hook and the buckle; and when closing the box cover 14, he only needs to engage the hook and the buckle to ensure that the box cover 14 is firmly fixed.

[0034] In a further preferred embodiment of the utility model, a groove block is provided at the top of the filter box 9 , a plug-in block is provided in the groove block, and the top end of the plug-in block is fixedly connected to the bottom of the filter box 9 .

[0035] In this embodiment, a groove block is provided at the top of the filter box 9. This design not only provides an installation space for the plug-in block, but also enhances the overall strength of the filter box 9 by increasing the structural level. A plug-in block is provided in the groove block, and the top of the block is fixedly connected to the bottom of the filter box 9. This plug-in design enables the block to be easily inserted into or pulled out of the groove block, thereby realizing the rapid assembly and disassembly of the filter box 9. At the same time, the fixed connection between the block and the bottom of the filter box 9 ensures the stability of the filter box 9 during use.

[0036] In summary, the air preheater sootblower provided by this technical solution realizes efficient and automatic soot cleaning of the boiler air preheater through the coordinated work of various components, and solves many problems existing in the traditional manual cleaning method. Its beneficial effects include improving the boiler heat exchange efficiency, reducing energy consumption, reducing equipment failures, improving operation stability, reducing maintenance costs, etc., providing a strong guarantee for the stable operation and efficient energy consumption control of the boiler system.

[0037] Compared with the relevant technology, by adopting key components such as the wall box 2 and the sootblower 3, and optimizing the structure of the air inlet valve 4 and the temperature control box 5, the sootblower of the present invention significantly improves the soot cleaning efficiency and the soot cleaning effect, making the cleaning of the heat exchange surface more thorough, thereby improving the overall operating efficiency of the boiler; secondly, by adding a dust filtering mechanism and a detachable filter plate 10, the sootblower of the present invention effectively filters the dust entering the air supply system, reduces the damage to the fan and the entire system, prolongs the service life, and reduces the maintenance cost.

[0038] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0039] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0040] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An air preheater sootblower, characterized in that: include: A beam body, a wall box is arranged on the beam body, and a sootblower for blowing and cleaning the boiler air preheater is arranged on the air outlet end of the wall box; An air intake valve, the air intake valve is fixed on the beam body, and an inner pipe for supplying air to the wall box is fixedly installed on the air outlet end of the air intake valve; A temperature control box for controlling the outlet temperature, wherein the temperature control box is arranged on one side of the beam body; An air supply pipe, the air supply pipe is fixedly installed in the temperature control box, and the air outlet end of the air supply pipe is fixedly connected to the air inlet end of the air inlet valve; A fan for supplying air, the fan being fixedly mounted on the temperature control box; A connecting pipe, the connecting pipe is fixedly connected to the temperature control box, and the air inlet end of the connecting pipe is fixedly connected to the air outlet end of the temperature control box; A dust filtering mechanism is used for filtering dust entering the fan air, and the dust filtering mechanism is arranged on the temperature control box.

2. The air preheater sootblower according to claim 1, characterized in that: The dust filtering mechanism comprises: A filter box is arranged on the top of the temperature control box, and the air outlet end of the filter box is fixedly connected with the air inlet end of the fan through a pipeline; A plurality of detachable filter plates vertically mounted in the filter box for filtering dust and impurities; An air intake pipe is fixedly connected to one side of the filter box.

3. The air preheater sootblower according to claim 1, characterized in that: A plurality of electric heating tubes for heating air are arranged in the temperature control box, a thermostat for controlling the start and stop of the electric heating tubes is arranged on one side of the temperature control box, and an assembly frame for carrying the temperature control box is fixedly mounted on the beam body.

4. The air preheater sootblower according to claim 3, characterized in that: A support block is symmetrically fixedly installed on the assembly frame, and the top of the support block is fixedly connected to the bottom of the temperature control box.

5. The air preheater sootblower according to claim 1, characterized in that: A rear support hanger is arranged on the top of the beam body, and a sports car for regulating the in and out movement of the sootblowing gun is also arranged on the beam body.

6. The air preheater sootblower according to claim 2, characterized in that: A detachable box cover is arranged on the top of the filter box, a hook for limiting position is fixedly mounted on the box cover, and a buckle which can be engaged with or separated from the hook is fixedly mounted on the filter box.

7. The air preheater sootblower according to claim 2, characterized in that: A groove block is arranged on the top of the filter box, a plug-in block is arranged in the groove block, and the top end of the plug-in block is fixedly connected to the bottom of the filter box.

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