Boiler flue gas duct for fine construction

Abstract

The utility model discloses a boiler flue gas duct for fine construction, which belongs to the field of boiler flue gas ducts and comprises a flue gas duct wall, a support plate, support legs, a clamping plate, an angle steel belt, a thermal insulation layer, a reinforcing mesh and a protective layer. The specification and the size of the flue wall are determined according to data statistics, uniform blanking, prefabrication and splicing part division are carried out, finally hoisting and assembling are carried out on site, after the flue wall is assembled and spliced, the heat preservation layer is installed on the flue wall, and the heat preservation layer carries out heat preservation and heat insulation on the flue wall. The reinforcing mesh on the inner side of the heat preservation layer can increase the firmness of the heat preservation layer plate and prevent the heat preservation layer from cracking, the protection layer is fixed to the clamping plate after the heat preservation layer and the clamping plate are installed, the functions of rain prevention, wind shielding and the like are achieved for the clamping plate and the heat preservation layer, fine construction is conducted on installation of the smoke and air duct, and the smoke and air duct has enough strength, rigidity and stability. Strong vibration is avoided, the construction quality is improved, and the construction efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of boiler smoke and air ducts, in particular to a boiler smoke and air duct with refined construction. Background Art

[0002] With the continuous improvement of people's living standards, the pace of urbanization is getting faster and faster. In winter, most cities and towns use centralized heat sources for heating, and the heating equipment of heat source plants is becoming increasingly large. The current situation of coal-fired industrial boilers needs to be changed urgently. In order to ensure environmental protection requirements, flue gas purification equipment such as flue gas dust removal and desulfurization are equipped at the tail of the boiler. Therefore, it is necessary to ensure that the installation quality of the smoke and air duct meets the requirements of design and environmental protection. It is urgent to achieve high-efficiency, low-emission environmentally friendly smoke and air duct refined construction technology and research. The existing high-efficiency pulverized coal hot water boiler smoke and air duct and auxiliary equipment have a long construction period, insufficient rigidity and finishing stability, and are prone to safety hazards when strong vibrations occur. Summary of the invention

[0003] The utility model aims to solve the problems raised in the background technology and designs a boiler smoke and air duct with refined construction.

[0004] The technical solution of the utility model to achieve the above purpose is:

[0005] A boiler smoke and air duct with refined construction comprises a smoke and air duct wall, a support plate, a support leg, a clamping plate, an angle steel strip, a thermal insulation layer, a steel mesh, and a protective layer. The smoke and air duct wall is fixedly connected to the support plate, the smoke and air duct wall is fixedly connected to one end of the support leg, the other end of the support leg is fixedly connected to the angle steel strip, the angle steel strip is fixedly connected to the clamping plate, the clamping plate is fitted with the support plate, the inner side of the clamping plate is fixedly connected to the thermal insulation layer, the inner side of the thermal insulation layer is fitted with the steel mesh, and the protective layer is fixedly connected to the clamping plate.

[0006] Preferably, the insulation layer is made of aluminum silicate and rock wool.

[0007] Preferably, a reinforcing rib is provided on the wall of the smoke and air duct, the reinforcing rib is fixedly connected to the wall of the smoke and air duct, and the height of the reinforcing rib is consistent with the height of the support plate.

[0008] Preferably, a connecting plate is provided on the wall of the smoke and air duct, and the connecting plate is fixedly connected to the wall of the smoke and air duct.

[0009] Preferably, a profiled plate is provided on the protective layer, and the profiled plate is fixedly connected to the protective layer.

[0010] The utility model provides a boiler smoke and air duct with refined construction, which has the following beneficial effects:

[0011] Through its structural design, the device determines the specifications and dimensions of the smoke and air duct wall according to data statistics, uniformly cuts and prefabricates, divides the splicing parts, and finally hoists and assembles on site. After the smoke and air duct wall is assembled and spliced, the thermal insulation layer is installed on the smoke and air duct wall. The thermal insulation layer insulates and heat-insulates the smoke and air duct wall. The thermal insulation layer is fixed by a clamping plate, and the clamping plate is connected to the legs on the smoke and air duct wall by an angle steel belt, so that the clamping plate is more stably fixed to the outer ring of the smoke and air duct wall. The support plate of the outer ring of the smoke and air duct wall supports the clamping plate, and strengthens the thermal insulation layer and the smoke and air duct wall. The stability of the smoke and air duct can be avoided to avoid safety hazards when strong vibration occurs. The steel mesh on the inside of the insulation layer can increase the firmness of the insulation layer board and prevent the insulation layer from cracking. After the insulation layer and the clamping plate are installed, the protective layer is fixed to the clamping plate to protect the clamping plate and the insulation layer from rain and wind. The smoke and air duct is installed with refined construction and has sufficient strength, rigidity and stability to avoid strong vibration. It is economical, safe and easy to make, which improves construction quality, saves engineering costs, ensures construction efficiency, and reduces a lot of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the boiler smoke and air duct of the utility model with refined construction;

[0013] Figure 2 It is a front structural schematic diagram of the boiler smoke and air duct with refined construction described in the utility model;

[0014] Figure 3 It is a structural schematic diagram of the connecting plate of the utility model.

[0015] In the figure: 1. Smoke and air duct wall; 2. Support plate; 3. Leg; 4. Clamping plate; 5. Angle steel strip; 6. Insulation layer; 7. Steel mesh; 8. Protective layer; 9. Reinforcing ribs; 10. Connecting plate; 11. Corrugated plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3 , the utility model provides a technical solution:

[0020] A boiler smoke and air duct with refined construction comprises a smoke and air duct wall 1, a support plate 2, a support leg 3, a clamping plate 4, an angle steel strip 5, a thermal insulation layer 6, a steel mesh 7, and a protective layer 8. The smoke and air duct wall 1 is fixedly connected to the support plate 2, the smoke and air duct wall 1 is fixedly connected to one end of the support leg 3, the other end of the support leg 3 is fixedly connected to the angle steel strip 5, the angle steel strip 5 is fixedly connected to the clamping plate 4, the clamping plate 4 is fitted with the support plate 2, the inner side of the clamping plate 4 is fixedly connected to the thermal insulation layer 6, the inner side of the thermal insulation layer 6 is fitted with the steel mesh 7, and the protective layer 8 is fixedly connected to the clamping plate 4.

[0021] In the present utility model, the thermal insulation layer 6 is made of aluminum silicate and rock wool, and the thermal insulation layer 6 made of aluminum silicate and rock wool is used to insulate and heat-insulate the smoke and air duct wall.

[0022] In the utility model, reinforcing ribs 9 are provided on the smoke and air duct wall 1, and the reinforcing ribs 9 are fixedly connected to the smoke and air duct wall 1. The height of the reinforcing ribs 9 is consistent with the height of the support plate 2. The reinforcing ribs 9 can enhance the overall strength of the smoke and air duct and prevent the smoke and air duct from causing safety hazards due to strong vibration.

[0023] In the utility model, a connecting plate 10 is provided on the smoke and air duct wall 1, and the connecting plate 10 is fixedly connected to the smoke and air duct wall 1. The connecting plates 10 at the four corners of the smoke and air duct body formed by the smoke and air duct wall 1 make the smoke and air duct formed by the smoke and air duct wall 1 more solid.

[0024] In the present invention, a profiled plate 11 is provided on the protective layer 8 , and the profiled plate 11 is fixedly connected to the protective layer 8 . The strength of the protective layer 8 can be enhanced by the profiled plate 11 on the protective layer 8 .

[0025] In this implementation scheme: First, according to the different steel plate thicknesses and installation lengths of the air duct and the flue, the specifications and dimensions of the smoke and air duct are determined through data statistics, and the materials are cut, prefabricated, and the splicing parts are divided in a unified manner. Finally, the smoke and air duct walls 1 are first spliced ​​together to form the smoke and air duct main body during splicing at the construction site. The four corners of the smoke and air duct main body composed of the smoke and air duct walls 1 are reinforced with connecting plates 10 to make the smoke and air duct composed of the smoke and air duct walls 1 more solid. After the smoke and air duct walls 1 are assembled and spliced, the reinforcing ribs 9 are welded to the smoke and air duct walls 1 to reinforce the smoke and air duct. The material of the reinforcing ribs 9 is consistent with that of the smoke and air duct walls 1. The spacing between the reinforcing ribs 9 is ≤1000mm. The reinforcing ribs 9 can strengthen the overall strength of the smoke and air duct to prevent the smoke and air duct from causing safety hazards due to strong vibration. After the installation of the reinforcing ribs 9 is completed, the support plates 2, The steel mesh 7 and the thermal insulation layer 6 are laid on the outer side of the smoke and air duct wall 1, and the thermal insulation layer 6 insulates and heat-insulates the smoke and air duct wall 1. The thermal insulation layer 3 is fixed to the outer side of the smoke and air duct wall 1 through the clamping plate 4, and the clamping plate 4 is connected to the support leg 3 on the smoke and air duct wall 4 through the angle steel strip 5, so that the clamping plate 4 is more stably fixed to the outer circle of the smoke and air duct wall 1, and the support plate 2 of the outer circle of the smoke and air duct wall 1 supports the steel mesh 7 to strengthen the stability of the thermal insulation layer 6 and the smoke and air duct wall 1. The steel mesh 7 on the inner side of the thermal insulation layer 6 can increase the firmness of the thermal insulation layer 6 and prevent the thermal insulation layer 6 from cracking. After the thermal insulation layer 6 and the clamping plate 4 are installed, the protective layer 8 is fixed to the clamping plate 4 to protect the clamping plate 4 and the thermal insulation layer 6 from rain and wind. The corrugated plate 11 on the protective layer 8 can strengthen the strength of the protective layer 8. After the installation of the protective layer 8 is completed, the smoke and air duct can be used normally.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler smoke and air duct with refined construction, characterized by: The invention comprises a smoke and air duct wall (1), a support plate (2), a support leg (3), a clamping plate (4), an angle steel strip (5), a thermal insulation layer (6), a steel mesh (7), and a protective layer (8), wherein the smoke and air duct wall (1) is fixedly connected to the support plate (2), the smoke and air duct wall (1) is fixedly connected to one end of the support leg (3), the other end of the support leg (3) is fixedly connected to the angle steel strip (5), the angle steel strip (5) is fixedly connected to the clamping plate (4), the clamping plate (4) is fitted with the support plate (2), the inner side of the clamping plate (4) is fixedly connected to the thermal insulation layer (6), the inner side of the thermal insulation layer (6) is fitted with the steel mesh (7), and the protective layer (8) is fixedly connected to the clamping plate (4).

2. The boiler smoke and air duct with refined construction according to claim 1 is characterized by: The smoke and air duct wall (1) is provided with a reinforcing rib (9), the reinforcing rib (9) is fixedly connected to the smoke and air duct wall (1), and the height of the reinforcing rib (9) is consistent with the height of the support plate (2).

3. The boiler smoke and air duct with refined construction according to claim 1 is characterized in that: A connecting plate (10) is provided on the smoke and air duct wall (1), and the connecting plate (10) is fixedly connected to the smoke and air duct wall (1).

4. The boiler smoke and air duct with refined construction according to claim 1 is characterized in that: A profiled plate (11) is provided on the protective layer (8), and the profiled plate (11) is fixedly connected to the protective layer (8).

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