Storage sealing device for generator rotor

Abstract

The utility model relates to the technical field of generator rotor transportation and storage, and discloses a generator rotor storage sealing device which comprises a supporting base and a protective cover covering the supporting base, the upper surface of the supporting base is welded to the bottom of the protective cover, and a closed space is formed between the supporting base and the protective cover. Supporting angle steel is arranged on the inner wall of the protection cover, a gap is formed between the supporting angle steel and the upper surface of the supporting base, and a height-adjustable liner is arranged in the gap. According to the utility model, airtight welding is adopted at the joint of the protective cover and the supporting base, so that the airtightness of a closed space formed by the supporting base and the protective cover is improved, the rotor can be protected from being eroded by gas and liquid, and the rotor storage device is particularly suitable for long-term storage of the rotor. The gasket not only can support the protective cover, but also can protect the rotor from being damaged when the connecting position of the supporting base and the protective cover is welded and cut.

Description

Technical Field

[0001] The utility model relates to the technical field of generator rotor transport and storage, and more specifically to a generator rotor storage sealing device. Background Art

[0002] The rotor is the core and key component of the generator. For generator rotors that need to be stored for a long time, it is necessary not only to protect the rotor from hard contact with external equipment, but also to protect the rotor from erosion by gas and liquid.

[0003] The existing rotor transportation and storage structure usually adopts a non-sealed form of protection cover body and bottom plate for protection. This storage structure is simple and convenient for rotor transportation. However, it has no sealing effect and is only suitable for short-term storage after the rotor is transported to the power plant. Furthermore, in order to solve the sealing problem, a bolt-fitting and sealing gasket form is currently adopted, and a sealing gasket is used to seal between the protective cover body and the protective cover bottom plate. This form has high requirements on the roughness and flatness of the sealing surface. Since the volume of the large generator rotor protective cover is about 18m×3m, it is difficult to process large-size planes with high requirements on roughness and flatness, the processing cost is high, and it is easy to deform. At the same time, the use of sealing gaskets has aging problems and needs to be replaced regularly. Summary of the invention

[0004] In order to solve the problems and deficiencies in the above-mentioned prior art, the utility model proposes a generator rotor storage sealing device, which is composed of a support base and a protective cover to form a closed space. The protective cover and the support base are airtightly welded, and a supporting angle steel is arranged inside the protective cover. There is a certain margin space between the angle steel and the support base, and a height-adjustable gasket is installed in this space. The airtight welding of the protective cover and the support base ensures the sealing of the closed space. The supporting angle steel cooperates with the gasket below to support the protective cover and protect the rotor in the closed space during welding and cutting.

[0005] In order to achieve the above-mentioned invention object, the technical solution of the utility model is as follows:

[0006] A generator rotor storage sealing device comprises a support base and a protective cover covering the support base, wherein the upper surface of the support base is welded to the bottom of the protective cover, and a closed space is formed between the support base and the protective cover, and the inner wall of the protective cover is provided with a support angle steel, and a gap is provided between the support angle steel and the upper surface of the support base, and a height-adjustable gasket is provided in the gap.

[0007] As a preferred solution of the utility model, the support base, the protective cover, the support angle steel and the liner are enclosed in a closed space to form a protective cavity.

[0008] As a preferred solution of the present invention, the protection cavity is filled with an inert gas.

[0009] As a preferred solution of the present invention, the liner is formed by stacking multiple layers of steel plates.

[0010] As a preferred solution of the utility model, the closed space formed by the support base and the protective cover is filled with inert gas.

[0011] Beneficial effects of the utility model:

[0012] (1) The connection between the protective cover and the support base of the utility model is airtight welding, which improves the sealing of the enclosed space formed by the support base and the protective cover. In addition, the enclosed space formed by the support base and the protective cover is filled with nitrogen, which increases the pressure in the enclosed space, thereby preventing external gas from entering the enclosed space, and protecting the rotor from being corroded by gas and liquid. It is particularly suitable for long-term storage of the rotor.

[0013] (2) The utility model provides a supporting angle steel on the inner side of the protective cover, and a gap is left between the supporting angle steel and the supporting base. A height-adjustable gasket is provided in the gap. The gasket can not only support the protective cover, but also protect the rotor from damage during welding and cutting of the connection position between the supporting base and the protective cover, and at the same time realize multiple recycling of the protective cover.

[0014] (3) The gasket, support base, protective cover and support angle steel of the utility model are enclosed at the connection position of the support base and the protective cover to form a protective cavity, which is also filled with nitrogen. The protective cavity forms the first line of protection for the device, further improving the airtightness of the device.

[0015] (4) The storage device structure of the utility model has low processing requirements for the sealing mating surface, and the sealing effect and sealing life are longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and following detailed description of the present invention will become more clear when read in conjunction with the following drawings, in which:

[0017] Figure 1 This is an overall schematic diagram of the storage sealing structure of the utility model;

[0018] Figure 2 for Figure 1 Middle AA section view

[0019] In the figure:

[0020] 1. Support base; 2. Protective cover; 3. Support angle steel; 4. Gasket; 5. Protective cavity; 6. Generator rotor. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in the utility model, the technical solutions for achieving the invention purpose of the utility model will be further described below through several specific embodiments. It should be noted that the technical solutions claimed for protection by the utility model include but are not limited to the following embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the utility model.

[0022] The embodiment of the utility model discloses a generator rotor storage sealing device, referring to the attached specification Figure 1-Figure 2 As shown, the storage device includes a support base 1 and a protective cover 2, the protective cover 2 covers the upper surface of the support base 1 to form a corresponding enclosed space, the generator rotor 6 is located in the sealed space formed by the support base 1 and the protective cover 2, and is fixed to the upper surface of the support base 1 by a special tooling; further, in order to improve the sealing of the enclosed space, the bottom of the protective cover 2 is airtightly welded to the upper surface of the support base 1, that is, the protective cover 2 and the support base 1 are connected as a whole by airtight welding, and the weld is located on the outside of the protective cover 2, and the inner wall of the protective cover 2 is provided with a support angle steel 3, a right-angled side of the support angle steel 3 is welded to the inner wall of the protective cover 2, and a gap is provided between the support angle steel 3 and the upper surface of the support base 1, and a gasket 4 is provided in the gap, and the two ends of the gasket 4 are respectively abutted against the right-angled side of the support angle steel 3 and the support base 1

[0023] It should be noted that the outer side refers to the side outside the confined space, and conversely, the inner side refers to the side inside the confined space.

[0024] Further, as a preferred implementation of this embodiment, the upper surface of the support base 1, the inner wall of the protective cover 2, the other right-angled side of the support angle steel 3, and the side wall of the liner 4 enclose a protective cavity 5 in a closed space, and the protective cavity 5 is filled with an inert protective gas such as nitrogen. The filled gas increases the internal pressure of the protective cavity 5, which can prevent external gas from invading the closed space.

[0025] Furthermore, as another preferred implementation mode of this embodiment, in order to improve the sealing and airtightness in the enclosed space, the enclosed space is filled with an inert protective gas such as nitrogen. The filled gas increases the internal pressure of the enclosed space and can prevent external gas from invading the enclosed space.

[0026] Furthermore, as another preferred implementation of this embodiment, the liner 4 is formed by stacking multiple layers of steel plates.

[0027] In all the embodiments described in the utility model, when it is necessary to take out the rotor in the enclosed space, the weld at the connection position between the protective cover and the support base is cut from the outside of the protective cover, and the rotor in the enclosed space can be taken out after the protective cover is removed. When the rotor is put in again, the number of steel plate layers of the liner is adjusted according to the previous cutting situation to adapt to the height change, and the protective cover is covered on the support base again, and supported on the liner by the supporting angle steel, so as to achieve the fixing and positioning of the protective cover, and then the connection position between the protective cover and the support base is directly welded from the outside. The steel plate of the liner can not only cooperate with the supporting angle steel to support the protective cover, but also form a blocking structure during welding and cutting operations to protect the rotor in the enclosed space from damage.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "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 limiting the scope of protection of the present invention.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" 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 it can be an indirect connection 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.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A generator rotor storage sealing device, characterized in that: The invention comprises a support base (1) and a protective cover (2) covering the support base (1), wherein the upper surface of the support base (1) is welded to the bottom of the protective cover (2), a closed space is formed between the support base (1) and the protective cover (2), a support angle steel (3) is arranged on the inner wall of the protective cover (2), a gap is provided between the support angle steel (3) and the upper surface of the support base (1), and a height-adjustable gasket (4) is arranged in the gap.

2. A generator rotor storage sealing device according to claim 1, characterized in that: The support base (1), the protective cover (2), the support angle steel (3) and the liner (4) are enclosed in a closed space to form a protective cavity (5).

3. A generator rotor storage sealing device according to claim 2, characterized in that: The protection cavity (5) is filled with inert gas.

4. A generator rotor storage sealing device according to claim 1, characterized in that: The liner (4) is formed by stacking multiple layers of steel plates.

5. A generator rotor storage sealing device according to claim 1, characterized in that: The enclosed space formed by the support base (1) and the protective cover (2) is filled with an inert gas.

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