Rotor nitrogen charging protection device

Abstract

The utility model belongs to the field of gas equipment, and discloses a rotor nitrogen charging protection device which comprises a cylinder assembly, a bracket pipe clamp mechanism, a first end supporting mechanism, a second end supporting mechanism, an air inlet valve and an air outlet valve, the cylinder assembly is provided with a cavity used for containing a rotor, the bracket pipe clamp mechanism is arranged in the cavity of the cylinder assembly and used for installing the rotor, and the first end supporting mechanism and the second end supporting mechanism are arranged on the cylinder assembly. The first end supporting mechanism and the second end supporting mechanism are used for supporting the two ends of the rotor respectively, the first end supporting mechanism and / or the second end supporting mechanism are / is of a length-adjustable supporting structure, the air inlet valve is arranged on the cylinder assembly and used for introducing nitrogen into a cavity of the cylinder assembly, and the exhaust valve is arranged on the cylinder assembly and used for exhausting the nitrogen into the cavity of the cylinder assembly. And the air in the cavity is discharged out of the barrel assembly. According to the utility model, the rotor of the centrifugal compressor or the rotor of the turbomachinery can be positioned in an inert gas environment, the rotor is isolated from external air, the rotor is prevented from being corroded by the air, and spare part rotors are convenient to store.

Description

Technical Field

[0001] The utility model relates to the field of gas equipment, in particular to a rotor nitrogen filling protection device. Background Art

[0002] Both centrifugal compressors and turbines use rotors, which need to be stored when not in use. However, the rotors are easily corroded by air in general storage environments.

[0003] Based on the above problems, the applicant proposes a rotor nitrogen filling protection device for storing and protecting the rotor. Utility Model Content

[0004] The utility model aims to provide a rotor nitrogen filling protection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A rotor nitrogen filling protection device, comprising:

[0007] A barrel assembly having a cavity for accommodating a rotor;

[0008] A bracket and tube clamp mechanism, which is arranged in the cavity of the cylinder assembly and is used to install the rotor;

[0009] A first end supporting mechanism and a second end supporting mechanism, wherein the first end supporting mechanism and the second end supporting mechanism respectively support two ends of the rotor, and the first end supporting mechanism and / or the second end supporting mechanism are supporting structures with adjustable length;

[0010] An air intake valve, which is disposed on the barrel assembly and is used to introduce nitrogen into the cavity of the barrel assembly; and

[0011] An exhaust valve is arranged on the cylinder assembly to exhaust the air in the cavity out of the cylinder assembly.

[0012] Furthermore, it also includes a bracket, which is arranged outside the cylinder assembly to support the cylinder assembly.

[0013] Furthermore, the bracket includes a bottom frame body arranged at the bottom of the cylinder assembly and an end frame body arranged at one end of the cylinder assembly.

[0014] Furthermore, the cylinder assembly comprises a lower cylinder and an upper cylinder, the cavity is formed between the two, and the two are detachably connected.

[0015] Furthermore, the length-adjustable support structure includes a screw, a first threaded fixing block threadedly engaged with one end of the screw, a second threaded fixing block threadedly engaged with the other end of the screw, and a fairing pad. The first threaded fixing block is fixedly arranged in the cylinder assembly, the fairing pad is used to abut against the end of the rotor, and the second threaded fixing block is embedded in the fairing pad.

[0016] Furthermore, the first end supporting mechanism and the second end supporting mechanism are both supporting structures with adjustable lengths.

[0017] Furthermore, there are a plurality of bracket tube clamp mechanisms, which are arranged along the axial direction of the rotor.

[0018] Furthermore, a lifting lug is arranged on the barrel assembly.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the utility model can place the centrifugal compressor rotor or turbine machinery rotor in an inert gas environment, isolating the rotor from contact with the outside air, preventing air from corroding the rotor, and also facilitating the storage of spare rotors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the utility model when the upper cylinder is removed.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] In the figure: upper cylinder 1, lower cylinder 2, rotor 3, bracket tube clamp mechanism 4, first end support mechanism 5a, second end support mechanism 5b, screw 500, first threaded fixing block 501, air deflector pad 502, second threaded fixing block 503, intake valve 6, exhaust valve 7, bracket 8, bottom frame 800, end frame 801, and lifting ear 9. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 3A rotor nitrogen filling protection device comprises a cylinder assembly, a bracket tube clamp mechanism 4, a first end supporting mechanism 5a, a second end supporting mechanism 5b, an intake valve 6 and an exhaust valve 7, the cylinder assembly has a cavity for accommodating a rotor 3, the bracket tube clamp mechanism 4 is arranged in the cavity of the cylinder assembly for installing the rotor 3, the first end supporting mechanism 5a and the second end supporting mechanism 5b respectively support the two ends of the rotor 3, the first end supporting mechanism 5a and / or the second end supporting mechanism 5b are length-adjustable supporting structures, the intake valve 6 is arranged on the cylinder assembly for introducing nitrogen into the cavity of the cylinder assembly, and the exhaust valve 7 is arranged on the cylinder assembly for exhausting air in the cavity from the cylinder assembly.

[0026] There are several bracket tube clamp mechanisms 4, which are arranged along the axial direction of the rotor 3. The bracket tube clamp mechanism 4 is a conventional plastic tube clamp, which includes a bracket and a pressure cover connected by fasteners, and a circular hole is formed therebetween, and the circular hole limits the shaft of the rotor 3 therein.

[0027] The air inlet valve 6 is preferably an instrument valve with a pressure gauge, and the air exhaust valve 7 is preferably an internally threaded straight-through ball valve.

[0028] It can be understood that in the above technical solution, the utility model can place the centrifugal compressor rotor or turbine machinery rotor in an inert gas environment, isolating the rotor from contact with the outside air, preventing air from corroding the rotor, and also facilitating the storage of the spare rotor 3.

[0029] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the cylinder assembly includes a lower cylinder 2 and an upper cylinder 1, a cavity is formed between the two, and the two are detachably connected by fasteners.

[0030] Continue reading Figure 1 and Figure 2 In one embodiment of the utility model, it also includes a bracket 8, which is arranged outside the cylinder assembly to support the cylinder assembly. The bracket 8 includes a bottom frame 800 arranged at the bottom of the cylinder assembly and an end frame 801 arranged at one end of the cylinder assembly, and the two form an L-shaped structure.

[0031] It can be understood that in the above technical solution, the utility model can be placed upright so that the rotor 3 is in a vertical state, which can prevent the rotor from bending and increase the service life of the rotor.

[0032] Continue reading Figure 1 and Figure 2In one embodiment of the utility model, the first end support mechanism 5a and the second end support mechanism 5b are both length-adjustable support structures, which include a screw 500, a first threaded fixing block 501 threadedly connected to one end of the screw 500, a second threaded fixing block 503 threadedly connected to the other end of the screw 500, and a shroud pad 502. The first threaded fixing block 501 is fixedly arranged in the barrel assembly, and the second threaded fixing block 503 is a square structure, which is embedded in the square groove of the shroud pad 502, and the shapes match. The shroud pad 502 is used to abut against the end of the rotor 3. The screw 500 is provided with a plurality of nuts, and the nuts abut against the threaded fixing block to prevent the screw 500 from loosening.

[0033] When adjusting the length, first adjust the nut, and then rotate the screw 500 to adjust the distance between the first threaded fixing block 501 and the air duct pad 502, so as to match the rotor 3 of different lengths. After adjusting the distance between the first threaded fixing block 501 and the air duct pad 502, tighten the nut until it is against the corresponding threaded fixing block.

[0034] Continue reading Figure 1 and Figure 2 In one embodiment of the utility model, a lifting lug 9 is provided on the cylinder assembly.

[0035] When the utility model is used, the rotor 3 is placed on the bracket in the lower cylinder 2, the supporting part is fixed with a plastic pipe clamp, and the two sides of the rotor 3 are fixed by adjusting the screw 500 so that the guide cover pad 502 is in close contact with the rotor 3; then the upper cylinder 1 is placed on the lower cylinder 2, the middle dividing surface is sealed by a sealing strip, and fastened with a fastener, and then the inlet valve 6 and the exhaust valve 4 are opened, and nitrogen is filled through the inlet valve 6, and the other is for exhausting, so that the internal air is discharged, so that the rotor 3 is in a nitrogen environment, and the exhaust valve 4 is closed at this time, and nitrogen enters the cavity to make the pressure in the cavity reach about 20kpa (G), and then the inlet valve 6 is closed. In this way, the rotor 3 is placed in the nitrogen storage space, and when stored on site or in the factory, it is adjusted to stand upright through the lifting lug 9; it can avoid corrosion of the rotor 3 and prevent the bending of the rotor, and can also extend the service life of the rotor 3, saving a lot of time for users to stop the machine on site for emergency replacement of the rotor 3.

[0036] Although 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 rotor nitrogen filling protection device, characterized in that: include: A barrel assembly, the barrel assembly having a cavity for accommodating a rotor (3); A bracket tube clamp mechanism (4), wherein the bracket tube clamp mechanism (4) is arranged in the cavity of the cylinder assembly and is used to install the rotor (3); A first end supporting mechanism (5a) and a second end supporting mechanism (5b), wherein the first end supporting mechanism (5a) and the second end supporting mechanism (5b) respectively support two ends of the rotor (3), and the first end supporting mechanism (5a) and / or the second end supporting mechanism (5b) are supporting structures with adjustable length; An air intake valve (6), the air intake valve (6) being arranged on the barrel assembly and used to introduce nitrogen into the cavity of the barrel assembly; as well as An exhaust valve (7) is arranged on the cylinder assembly and is used to exhaust air in the cavity out of the cylinder assembly.

2. A rotor nitrogen filling protection device according to claim 1, characterized in that: It also comprises a bracket (8), wherein the bracket (8) is arranged outside the barrel assembly and is used to support the barrel assembly.

3. A rotor nitrogen filling protection device according to claim 2, characterized in that: The support (8) comprises a bottom frame (800) arranged at the bottom of the cylinder assembly and an end frame (801) arranged at one end of the cylinder assembly.

4. A rotor nitrogen filling protection device according to claim 1, characterized in that: The cylinder assembly comprises a lower cylinder (2) and an upper cylinder (1), the cavity being formed between the two, and the two are detachably connected.

5. A rotor nitrogen filling protection device according to claim 1, characterized in that: The length-adjustable support structure comprises a screw rod (500), a first threaded fixing block (501) threadedly engaged with one end of the screw rod (500), a second threaded fixing block (503) threadedly engaged with the other end of the screw rod (500), and a shroud pad (502), wherein the first threaded fixing block (501) is fixedly arranged in the barrel assembly, the shroud pad (502) is used to abut against the end of the rotor (3), and the second threaded fixing block (503) is embedded in the shroud pad (502).

6. A rotor nitrogen filling protection device according to claim 5, characterized in that: The first end supporting mechanism (5a) and the second end supporting mechanism (5b) are both supporting structures with adjustable lengths.

7. A rotor nitrogen filling protection device according to claim 1, characterized in that: There are a plurality of bracket tube clamp mechanisms (4) which are arranged axially along the rotor (3).

8. A rotor nitrogen filling protection device according to claim 1, characterized in that: A lifting lug (9) is provided on the cylinder assembly.

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