Tail rear enclosure wall hanging device

Abstract

The invention relates to the technical field of boilers, and provides a tail rear enclosure wall hanging device which is used for hanging a tail rear enclosure wall and comprises a plurality of hanging mechanisms, the hanging mechanisms are arranged at intervals, and each hanging mechanism comprises a hanging steel plate arranged between a boiler top plate beam and the tail rear enclosure wall; the first end of the suspender is fixedly connected with the boiler top plate beam, and the second end of the suspender is connected with the tail rear enclosure wall; the plurality of flat steels are respectively arranged at the pitches of the water cooling wall of the tail rear enclosure wall, and the flat steels are fixedly connected with the tail rear enclosure wall and the hanging steel plate. According to the tail rear enclosure wall hanging device, the reliability can be improved, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, and in particular to a tail rear wall hanging device. Background Art

[0002] Coal-fired boilers and gas-fired boilers usually adopt a π-shaped layout structure. The tail wall hanging device of this structure not only has to bear the load from the wall membrane wall itself, but also has to bear the load of the superheater tube bundle, economizer tube bundle and economizer ash hopper in the tail wall flue gas channel; therefore, the reliability, safety and strength of the wall hanging device are particularly important.

[0003] At present, the tail rear wall load is usually transferred to the boiler roof beam in the form of steel section plus ear plate, but this type of hanging device has a relatively complex structure, so it has defects such as high manufacturing cost and poor reliability. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a rear wall hanging device which can increase reliability and reduce manufacturing costs.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: a tail rear wall hanging device, used for hanging the tail rear wall, including a plurality of hanging mechanisms, the plurality of hanging mechanisms are arranged at intervals, and the hanging mechanisms include:

[0006] A hanging steel plate, the hanging steel plate being arranged between the boiler top plate beam and the tail rear wall;

[0007] A suspension rod, wherein a first end of the suspension rod is fixedly connected to the boiler top beam, and a second end of the suspension rod is connected to the tail rear wall;

[0008] A plurality of flat steels are respectively arranged at the pitch of the water-cooled wall of the tail rear wall, and the flat steels are fixedly connected to the tail rear wall and the hanging steel plate.

[0009] Furthermore, a connection assembly is provided between the hanging steel plate and the hanging rod, and the connection assembly includes a hanging ear plate and a strap, the hanging ear plate is fixedly connected to the second end of the hanging rod, and the strap is provided on the outside of the hanging ear plate and connected to the hanging ear plate through a first pin shaft;

[0010] The hanging steel plate and the butt plate are connected via a second pin shaft.

[0011] Furthermore, the number of the straps is two, and the two straps are respectively arranged on both sides of the hanging ear plate and on both sides of the hanging steel plate.

[0012] Furthermore, there is a distance between the hanging ear plate and the hanging steel plate.

[0013] Furthermore, there is an expansion gap between two adjacent hanging steel plates in two adjacent hanging mechanisms.

[0014] Furthermore, a plurality of the hanging mechanisms are arranged at intervals along the width direction of the boiler.

[0015] Beneficial effects of the present invention: The present invention provides a rear rear wall hanging device, which connects the rear rear wall and the hanging steel plate through multiple flat steels, and transfers the load of the rear rear wall to the hanging steel plate. Since the load of the rear rear wall is heavy, multiple flat steels are respectively arranged at the pitch of the water-cooled wall of the rear rear wall, ensuring that the load of the rear rear wall can be evenly and effectively transferred to the hanging steel plate, which can increase reliability. In addition, the structure of the device is simple, which can reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0018] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0020] Figure numerals: 10 - rear wall at the rear, 20 - hanging mechanism, 21 - hanging steel plate, 22 - hanging rod, 23 - flat steel, 30 - connecting assembly, 31 - hanging ear plate, 32 - strap, 33 - first pin shaft, 34 - second pin shaft, 40 - expansion gap. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] In this application, unless otherwise clearly specified and limited, the terms "connection" and "fixation" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "horizontal", "top", "bottom", "up", "down", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying 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 should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0025] like Figure 1-Figure 4 As shown, the present invention provides a tail rear wall hanging device for hanging the tail rear wall 10, including a plurality of hanging mechanisms 20, the plurality of hanging mechanisms 20 are arranged at intervals, and the hanging mechanisms 20 include a hanging steel plate 21, a hanging rod 22 and a plurality of flat steels 23.

[0026] The hanging steel plate 21 is arranged in the transverse direction between the boiler top plate beam and the tail rear wall 10 .

[0027] The suspension rod 22 is disposed in the longitudinal direction, a first end of the suspension rod 22 is fixedly connected to the boiler top beam, and a second end of the suspension rod 22 is connected to the tail rear wall 10 .

[0028] A plurality of flat steels 23 are respectively arranged at the pitches of the water-cooled wall of the tail rear enclosure wall 10 , and the flat steels 23 are fixedly connected to the tail rear enclosure wall 10 and the hanging steel plate 21 .

[0029] The device connects the rear wall 10 and the hanging steel plate 21 through a plurality of flat steels 23, and transfers the load of the rear wall 10 to the hanging steel plate 21. Since the load of the rear wall 10 is heavy, a plurality of flat steels 23 are respectively arranged at the pitch of the water-cooled wall of the rear wall 10, so as to ensure that the load of the rear wall 10 can be evenly and effectively transferred to the hanging steel plate 21, and thus reliability can be increased. In addition, the device has a simple structure and can reduce manufacturing costs.

[0030] In one embodiment, a connection assembly 30 is provided between the hanging steel plate 21 and the hanging rod 22, and the connection assembly 30 includes a hanging ear plate 31 and a strap plate 32. The hanging ear plate 31 is fixedly connected to the second end of the hanging rod 22. The strap plate 32 is arranged on the outside of the hanging ear plate 31. The strap plate 32 and the hanging ear plate 31 are both provided with a first pin hole, and a first pin shaft 33 is arranged in the first pin hole, and the first pin shaft 33 connects the hanging ear plate 31 with the strap plate 32.

[0031] A second pin hole is formed on both the hanging steel plate 21 and the strap plate 32 . A second pin shaft 34 is disposed in the second pin hole. The second pin shaft 34 connects the strap plate 32 and the hanging steel plate 21 together.

[0032] The device connects the hanging steel plate 21 and the hanging rod 22 together through the connecting assembly 30. After removing the first pin shaft 33 and the second pin shaft 34, the device can be disassembled for easy transportation and next assembly and use.

[0033] In this embodiment, there are two straps 32 , which are respectively arranged on both sides of the hanging ear plate 31 and on both sides of the hanging steel plate 21 , so as to improve the stability and reliability of the device.

[0034] In one embodiment, a certain installation distance is reserved between the hanging ear plate 31 and the hanging steel plate 21 to facilitate installation.

[0035] In one embodiment, an expansion gap 40 exists between two adjacent flat steels 23 in two adjacent hanging mechanisms 20 .

[0036] Since the boiler will expand left and right when hot, an expansion gap 40 is provided between two adjacent hanging steel plates 21 in two adjacent hanging mechanisms 20 to solve the boiler expansion problem.

[0037] In one embodiment, a plurality of hanging mechanisms 20 are arranged at intervals along the width direction of the boiler.

[0038] Compared with the existing technology, this device has reduced four parts, more than 50 welds in the factory, and six magnetic particle inspections in the factory; the welding workload on the construction site is consistent with the existing technology. Compared with the existing technology, the weight of the hanging device is reduced by about three kilograms per meter on average. Due to the reduction of welds and inspections, the safety hazards caused by unqualified welds are avoided and the reliability of the hanging device is increased.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rear wall hanging device for hanging a rear wall, which is used for hanging a rear wall, and is characterized by: The invention comprises a plurality of hanging mechanisms, wherein the plurality of hanging mechanisms are arranged at intervals, and the hanging mechanisms comprise: A hanging steel plate, the hanging steel plate being arranged between the boiler top plate beam and the tail rear wall; A suspension rod, wherein a first end of the suspension rod is fixedly connected to the boiler top beam, and a second end of the suspension rod is connected to the tail rear wall; A plurality of flat steels are respectively arranged at the pitch of the water-cooled wall of the tail rear wall, and the flat steels are fixedly connected to the tail rear wall and the hanging steel plate.

2. A rear wall hanging device according to claim 1, characterized in that: A connecting assembly is provided between the hanging steel plate and the hanging rod, and the connecting assembly includes a hanging ear plate and a strap, the hanging ear plate is fixedly connected to the second end of the hanging rod, and the strap is provided on the outside of the hanging ear plate and connected to the hanging ear plate through a first pin shaft; The hanging steel plate and the butt plate are connected via a second pin shaft.

3. The rear wall hanging device according to claim 2, characterized in that: The number of the straps is two, and the two straps are respectively arranged on both sides of the hanging ear plate and on both sides of the hanging steel plate.

4. The rear wall hanging device according to claim 3, characterized in that: There is a distance between the hanging ear plate and the hanging steel plate.

5. The rear wall hanging device according to claim 1, characterized in that: There is an expansion gap between two adjacent hanging steel plates in two adjacent hanging mechanisms.

6. The rear wall hanging device according to claim 1, characterized in that: The plurality of hanging mechanisms are arranged at intervals along the width direction of the boiler.

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